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-rw-r--r--sound/aoa/Kconfig17
-rw-r--r--sound/aoa/Makefile4
-rw-r--r--sound/aoa/aoa-gpio.h81
-rw-r--r--sound/aoa/aoa.h131
-rw-r--r--sound/aoa/codecs/Kconfig32
-rw-r--r--sound/aoa/codecs/Makefile3
-rw-r--r--sound/aoa/codecs/snd-aoa-codec-onyx.c1113
-rw-r--r--sound/aoa/codecs/snd-aoa-codec-onyx.h76
-rw-r--r--sound/aoa/codecs/snd-aoa-codec-tas-gain-table.h209
-rw-r--r--sound/aoa/codecs/snd-aoa-codec-tas.c654
-rw-r--r--sound/aoa/codecs/snd-aoa-codec-tas.h47
-rw-r--r--sound/aoa/codecs/snd-aoa-codec-toonie.c141
-rw-r--r--sound/aoa/core/Makefile5
-rw-r--r--sound/aoa/core/snd-aoa-alsa.c98
-rw-r--r--sound/aoa/core/snd-aoa-alsa.h16
-rw-r--r--sound/aoa/core/snd-aoa-core.c162
-rw-r--r--sound/aoa/core/snd-aoa-gpio-feature.c399
-rw-r--r--sound/aoa/core/snd-aoa-gpio-pmf.c246
-rw-r--r--sound/aoa/fabrics/Kconfig12
-rw-r--r--sound/aoa/fabrics/Makefile1
-rw-r--r--sound/aoa/fabrics/snd-aoa-fabric-layout.c1109
-rw-r--r--sound/aoa/soundbus/Kconfig14
-rw-r--r--sound/aoa/soundbus/Makefile3
-rw-r--r--sound/aoa/soundbus/core.c250
-rw-r--r--sound/aoa/soundbus/i2sbus/Makefile2
-rw-r--r--sound/aoa/soundbus/i2sbus/i2sbus-control.c192
-rw-r--r--sound/aoa/soundbus/i2sbus/i2sbus-control.h37
-rw-r--r--sound/aoa/soundbus/i2sbus/i2sbus-core.c387
-rw-r--r--sound/aoa/soundbus/i2sbus/i2sbus-interface.h187
-rw-r--r--sound/aoa/soundbus/i2sbus/i2sbus-pcm.c1021
-rw-r--r--sound/aoa/soundbus/i2sbus/i2sbus.h112
-rw-r--r--sound/aoa/soundbus/soundbus.h202
-rw-r--r--sound/aoa/soundbus/sysfs.c43
33 files changed, 7006 insertions, 0 deletions
diff --git a/sound/aoa/Kconfig b/sound/aoa/Kconfig
new file mode 100644
index 000000000000..b11ccf6dbabd
--- /dev/null
+++ b/sound/aoa/Kconfig
@@ -0,0 +1,17 @@
1menu "Apple Onboard Audio driver"
2 depends on SND != n && PPC
3
4config SND_AOA
5 tristate "Apple Onboard Audio driver"
6 depends on SOUND && SND_PCM
7 ---help---
8 This option enables the new driver for the various
9 Apple Onboard Audio components.
10
11source "sound/aoa/fabrics/Kconfig"
12
13source "sound/aoa/codecs/Kconfig"
14
15source "sound/aoa/soundbus/Kconfig"
16
17endmenu
diff --git a/sound/aoa/Makefile b/sound/aoa/Makefile
new file mode 100644
index 000000000000..d8de3e7df48d
--- /dev/null
+++ b/sound/aoa/Makefile
@@ -0,0 +1,4 @@
1obj-$(CONFIG_SND_AOA) += core/
2obj-$(CONFIG_SND_AOA) += codecs/
3obj-$(CONFIG_SND_AOA) += fabrics/
4obj-$(CONFIG_SND_AOA_SOUNDBUS) += soundbus/
diff --git a/sound/aoa/aoa-gpio.h b/sound/aoa/aoa-gpio.h
new file mode 100644
index 000000000000..3a61f3115573
--- /dev/null
+++ b/sound/aoa/aoa-gpio.h
@@ -0,0 +1,81 @@
1/*
2 * Apple Onboard Audio GPIO definitions
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8
9#ifndef __AOA_GPIO_H
10#define __AOA_GPIO_H
11#include <linux/workqueue.h>
12#include <linux/mutex.h>
13#include <asm/prom.h>
14
15typedef void (*notify_func_t)(void *data);
16
17enum notify_type {
18 AOA_NOTIFY_HEADPHONE,
19 AOA_NOTIFY_LINE_IN,
20 AOA_NOTIFY_LINE_OUT,
21};
22
23struct gpio_runtime;
24struct gpio_methods {
25 /* for initialisation/de-initialisation of the GPIO layer */
26 void (*init)(struct gpio_runtime *rt);
27 void (*exit)(struct gpio_runtime *rt);
28
29 /* turn off headphone, speakers, lineout */
30 void (*all_amps_off)(struct gpio_runtime *rt);
31 /* turn headphone, speakers, lineout back to previous setting */
32 void (*all_amps_restore)(struct gpio_runtime *rt);
33
34 void (*set_headphone)(struct gpio_runtime *rt, int on);
35 void (*set_speakers)(struct gpio_runtime *rt, int on);
36 void (*set_lineout)(struct gpio_runtime *rt, int on);
37
38 int (*get_headphone)(struct gpio_runtime *rt);
39 int (*get_speakers)(struct gpio_runtime *rt);
40 int (*get_lineout)(struct gpio_runtime *rt);
41
42 void (*set_hw_reset)(struct gpio_runtime *rt, int on);
43
44 /* use this to be notified of any events. The notification
45 * function is passed the data, and is called in process
46 * context by the use of schedule_work.
47 * The interface for it is that setting a function to NULL
48 * removes it, and they return 0 if the operation succeeded,
49 * and -EBUSY if the notification is already assigned by
50 * someone else. */
51 int (*set_notify)(struct gpio_runtime *rt,
52 enum notify_type type,
53 notify_func_t notify,
54 void *data);
55 /* returns 0 if not plugged in, 1 if plugged in
56 * or a negative error code */
57 int (*get_detect)(struct gpio_runtime *rt,
58 enum notify_type type);
59};
60
61struct gpio_notification {
62 notify_func_t notify;
63 void *data;
64 void *gpio_private;
65 struct work_struct work;
66 struct mutex mutex;
67};
68
69struct gpio_runtime {
70 /* to be assigned by fabric */
71 struct device_node *node;
72 /* since everyone needs this pointer anyway... */
73 struct gpio_methods *methods;
74 /* to be used by the gpio implementation */
75 int implementation_private;
76 struct gpio_notification headphone_notify;
77 struct gpio_notification line_in_notify;
78 struct gpio_notification line_out_notify;
79};
80
81#endif /* __AOA_GPIO_H */
diff --git a/sound/aoa/aoa.h b/sound/aoa/aoa.h
new file mode 100644
index 000000000000..378ef1e9879b
--- /dev/null
+++ b/sound/aoa/aoa.h
@@ -0,0 +1,131 @@
1/*
2 * Apple Onboard Audio definitions
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8
9#ifndef __AOA_H
10#define __AOA_H
11#include <asm/prom.h>
12#include <linux/module.h>
13/* So apparently there's a reason for requiring driver.h to be included first! */
14#include <sound/driver.h>
15#include <sound/core.h>
16#include <sound/asound.h>
17#include <sound/control.h>
18#include "aoa-gpio.h"
19#include "soundbus/soundbus.h"
20
21#define MAX_CODEC_NAME_LEN 32
22
23struct aoa_codec {
24 char name[MAX_CODEC_NAME_LEN];
25
26 struct module *owner;
27
28 /* called when the fabric wants to init this codec.
29 * Do alsa card manipulations from here. */
30 int (*init)(struct aoa_codec *codec);
31
32 /* called when the fabric is done with the codec.
33 * The alsa card will be cleaned up so don't bother. */
34 void (*exit)(struct aoa_codec *codec);
35
36 /* May be NULL, but can be used by the fabric.
37 * Refcounting is the codec driver's responsibility */
38 struct device_node *node;
39
40 /* assigned by fabric before init() is called, points
41 * to the soundbus device. Cannot be NULL. */
42 struct soundbus_dev *soundbus_dev;
43
44 /* assigned by the fabric before init() is called, points
45 * to the fabric's gpio runtime record for the relevant
46 * device. */
47 struct gpio_runtime *gpio;
48
49 /* assigned by the fabric before init() is called, contains
50 * a codec specific bitmask of what outputs and inputs are
51 * actually connected */
52 u32 connected;
53
54 /* data the fabric can associate with this structure */
55 void *fabric_data;
56
57 /* private! */
58 struct list_head list;
59 struct aoa_fabric *fabric;
60};
61
62/* return 0 on success */
63extern int
64aoa_codec_register(struct aoa_codec *codec);
65extern void
66aoa_codec_unregister(struct aoa_codec *codec);
67
68#define MAX_LAYOUT_NAME_LEN 32
69
70struct aoa_fabric {
71 char name[MAX_LAYOUT_NAME_LEN];
72
73 struct module *owner;
74
75 /* once codecs register, they are passed here after.
76 * They are of course not initialised, since the
77 * fabric is responsible for initialising some fields
78 * in the codec structure! */
79 int (*found_codec)(struct aoa_codec *codec);
80 /* called for each codec when it is removed,
81 * also in the case that aoa_fabric_unregister
82 * is called and all codecs are removed
83 * from this fabric.
84 * Also called if found_codec returned 0 but
85 * the codec couldn't initialise. */
86 void (*remove_codec)(struct aoa_codec *codec);
87 /* If found_codec returned 0, and the codec
88 * could be initialised, this is called. */
89 void (*attached_codec)(struct aoa_codec *codec);
90};
91
92/* return 0 on success, -EEXIST if another fabric is
93 * registered, -EALREADY if the same fabric is registered.
94 * Passing NULL can be used to test for the presence
95 * of another fabric, if -EALREADY is returned there is
96 * no other fabric present.
97 * In the case that the function returns -EALREADY
98 * and the fabric passed is not NULL, all codecs
99 * that are not assigned yet are passed to the fabric
100 * again for reconsideration. */
101extern int
102aoa_fabric_register(struct aoa_fabric *fabric);
103
104/* it is vital to call this when the fabric exits!
105 * When calling, the remove_codec will be called
106 * for all codecs, unless it is NULL. */
107extern void
108aoa_fabric_unregister(struct aoa_fabric *fabric);
109
110/* if for some reason you want to get rid of a codec
111 * before the fabric is removed, use this.
112 * Note that remove_codec is called for it! */
113extern void
114aoa_fabric_unlink_codec(struct aoa_codec *codec);
115
116/* alsa help methods */
117struct aoa_card {
118 struct snd_card *alsa_card;
119};
120
121extern int aoa_snd_device_new(snd_device_type_t type,
122 void * device_data, struct snd_device_ops * ops);
123extern struct snd_card *aoa_get_card(void);
124extern int aoa_snd_ctl_add(struct snd_kcontrol* control);
125
126/* GPIO stuff */
127extern struct gpio_methods *pmf_gpio_methods;
128extern struct gpio_methods *ftr_gpio_methods;
129/* extern struct gpio_methods *map_gpio_methods; */
130
131#endif /* __AOA_H */
diff --git a/sound/aoa/codecs/Kconfig b/sound/aoa/codecs/Kconfig
new file mode 100644
index 000000000000..90cf58f68630
--- /dev/null
+++ b/sound/aoa/codecs/Kconfig
@@ -0,0 +1,32 @@
1config SND_AOA_ONYX
2 tristate "support Onyx chip"
3 depends on SND_AOA
4 ---help---
5 This option enables support for the Onyx (pcm3052)
6 codec chip found in the latest Apple machines
7 (most of those with digital audio output).
8
9#config SND_AOA_TOPAZ
10# tristate "support Topaz chips"
11# depends on SND_AOA
12# ---help---
13# This option enables support for the Topaz (CS84xx)
14# codec chips found in the latest Apple machines,
15# these chips do the digital input and output on
16# some PowerMacs.
17
18config SND_AOA_TAS
19 tristate "support TAS chips"
20 depends on SND_AOA
21 ---help---
22 This option enables support for the tas chips
23 found in a lot of Apple Machines, especially
24 iBooks and PowerBooks without digital.
25
26config SND_AOA_TOONIE
27 tristate "support Toonie chip"
28 depends on SND_AOA
29 ---help---
30 This option enables support for the toonie codec
31 found in the Mac Mini. If you have a Mac Mini and
32 want to hear sound, select this option.
diff --git a/sound/aoa/codecs/Makefile b/sound/aoa/codecs/Makefile
new file mode 100644
index 000000000000..31cbe68fd42f
--- /dev/null
+++ b/sound/aoa/codecs/Makefile
@@ -0,0 +1,3 @@
1obj-$(CONFIG_SND_AOA_ONYX) += snd-aoa-codec-onyx.o
2obj-$(CONFIG_SND_AOA_TAS) += snd-aoa-codec-tas.o
3obj-$(CONFIG_SND_AOA_TOONIE) += snd-aoa-codec-toonie.o
diff --git a/sound/aoa/codecs/snd-aoa-codec-onyx.c b/sound/aoa/codecs/snd-aoa-codec-onyx.c
new file mode 100644
index 000000000000..0b7650788f1f
--- /dev/null
+++ b/sound/aoa/codecs/snd-aoa-codec-onyx.c
@@ -0,0 +1,1113 @@
1/*
2 * Apple Onboard Audio driver for Onyx codec
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 *
8 *
9 * This is a driver for the pcm3052 codec chip (codenamed Onyx)
10 * that is present in newer Apple hardware (with digital output).
11 *
12 * The Onyx codec has the following connections (listed by the bit
13 * to be used in aoa_codec.connected):
14 * 0: analog output
15 * 1: digital output
16 * 2: line input
17 * 3: microphone input
18 * Note that even though I know of no machine that has for example
19 * the digital output connected but not the analog, I have handled
20 * all the different cases in the code so that this driver may serve
21 * as a good example of what to do.
22 *
23 * NOTE: This driver assumes that there's at most one chip to be
24 * used with one alsa card, in form of creating all kinds
25 * of mixer elements without regard for their existence.
26 * But snd-aoa assumes that there's at most one card, so
27 * this means you can only have one onyx on a system. This
28 * should probably be fixed by changing the assumption of
29 * having just a single card on a system, and making the
30 * 'card' pointer accessible to anyone who needs it instead
31 * of hiding it in the aoa_snd_* functions...
32 *
33 */
34#include <linux/delay.h>
35#include <linux/module.h>
36MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
37MODULE_LICENSE("GPL");
38MODULE_DESCRIPTION("pcm3052 (onyx) codec driver for snd-aoa");
39
40#include "snd-aoa-codec-onyx.h"
41#include "../aoa.h"
42#include "../soundbus/soundbus.h"
43
44
45#define PFX "snd-aoa-codec-onyx: "
46
47struct onyx {
48 /* cache registers 65 to 80, they are write-only! */
49 u8 cache[16];
50 struct i2c_client i2c;
51 struct aoa_codec codec;
52 u32 initialised:1,
53 spdif_locked:1,
54 analog_locked:1,
55 original_mute:2;
56 int open_count;
57 struct codec_info *codec_info;
58
59 /* mutex serializes concurrent access to the device
60 * and this structure.
61 */
62 struct mutex mutex;
63};
64#define codec_to_onyx(c) container_of(c, struct onyx, codec)
65
66/* both return 0 if all ok, else on error */
67static int onyx_read_register(struct onyx *onyx, u8 reg, u8 *value)
68{
69 s32 v;
70
71 if (reg != ONYX_REG_CONTROL) {
72 *value = onyx->cache[reg-FIRSTREGISTER];
73 return 0;
74 }
75 v = i2c_smbus_read_byte_data(&onyx->i2c, reg);
76 if (v < 0)
77 return -1;
78 *value = (u8)v;
79 onyx->cache[ONYX_REG_CONTROL-FIRSTREGISTER] = *value;
80 return 0;
81}
82
83static int onyx_write_register(struct onyx *onyx, u8 reg, u8 value)
84{
85 int result;
86
87 result = i2c_smbus_write_byte_data(&onyx->i2c, reg, value);
88 if (!result)
89 onyx->cache[reg-FIRSTREGISTER] = value;
90 return result;
91}
92
93/* alsa stuff */
94
95static int onyx_dev_register(struct snd_device *dev)
96{
97 return 0;
98}
99
100static struct snd_device_ops ops = {
101 .dev_register = onyx_dev_register,
102};
103
104/* this is necessary because most alsa mixer programs
105 * can't properly handle the negative range */
106#define VOLUME_RANGE_SHIFT 128
107
108static int onyx_snd_vol_info(struct snd_kcontrol *kcontrol,
109 struct snd_ctl_elem_info *uinfo)
110{
111 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
112 uinfo->count = 2;
113 uinfo->value.integer.min = -128 + VOLUME_RANGE_SHIFT;
114 uinfo->value.integer.max = -1 + VOLUME_RANGE_SHIFT;
115 return 0;
116}
117
118static int onyx_snd_vol_get(struct snd_kcontrol *kcontrol,
119 struct snd_ctl_elem_value *ucontrol)
120{
121 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
122 s8 l, r;
123
124 mutex_lock(&onyx->mutex);
125 onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l);
126 onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r);
127 mutex_unlock(&onyx->mutex);
128
129 ucontrol->value.integer.value[0] = l + VOLUME_RANGE_SHIFT;
130 ucontrol->value.integer.value[1] = r + VOLUME_RANGE_SHIFT;
131
132 return 0;
133}
134
135static int onyx_snd_vol_put(struct snd_kcontrol *kcontrol,
136 struct snd_ctl_elem_value *ucontrol)
137{
138 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
139 s8 l, r;
140
141 mutex_lock(&onyx->mutex);
142 onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_LEFT, &l);
143 onyx_read_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT, &r);
144
145 if (l + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[0] &&
146 r + VOLUME_RANGE_SHIFT == ucontrol->value.integer.value[1]) {
147 mutex_unlock(&onyx->mutex);
148 return 0;
149 }
150
151 onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_LEFT,
152 ucontrol->value.integer.value[0]
153 - VOLUME_RANGE_SHIFT);
154 onyx_write_register(onyx, ONYX_REG_DAC_ATTEN_RIGHT,
155 ucontrol->value.integer.value[1]
156 - VOLUME_RANGE_SHIFT);
157 mutex_unlock(&onyx->mutex);
158
159 return 1;
160}
161
162static struct snd_kcontrol_new volume_control = {
163 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
164 .name = "Master Playback Volume",
165 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
166 .info = onyx_snd_vol_info,
167 .get = onyx_snd_vol_get,
168 .put = onyx_snd_vol_put,
169};
170
171/* like above, this is necessary because a lot
172 * of alsa mixer programs don't handle ranges
173 * that don't start at 0 properly.
174 * even alsamixer is one of them... */
175#define INPUTGAIN_RANGE_SHIFT (-3)
176
177static int onyx_snd_inputgain_info(struct snd_kcontrol *kcontrol,
178 struct snd_ctl_elem_info *uinfo)
179{
180 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
181 uinfo->count = 1;
182 uinfo->value.integer.min = 3 + INPUTGAIN_RANGE_SHIFT;
183 uinfo->value.integer.max = 28 + INPUTGAIN_RANGE_SHIFT;
184 return 0;
185}
186
187static int onyx_snd_inputgain_get(struct snd_kcontrol *kcontrol,
188 struct snd_ctl_elem_value *ucontrol)
189{
190 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
191 u8 ig;
192
193 mutex_lock(&onyx->mutex);
194 onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &ig);
195 mutex_unlock(&onyx->mutex);
196
197 ucontrol->value.integer.value[0] =
198 (ig & ONYX_ADC_PGA_GAIN_MASK) + INPUTGAIN_RANGE_SHIFT;
199
200 return 0;
201}
202
203static int onyx_snd_inputgain_put(struct snd_kcontrol *kcontrol,
204 struct snd_ctl_elem_value *ucontrol)
205{
206 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
207 u8 v, n;
208
209 mutex_lock(&onyx->mutex);
210 onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
211 n = v;
212 n &= ~ONYX_ADC_PGA_GAIN_MASK;
213 n |= (ucontrol->value.integer.value[0] - INPUTGAIN_RANGE_SHIFT)
214 & ONYX_ADC_PGA_GAIN_MASK;
215 onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, n);
216 mutex_unlock(&onyx->mutex);
217
218 return n != v;
219}
220
221static struct snd_kcontrol_new inputgain_control = {
222 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
223 .name = "Master Capture Volume",
224 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
225 .info = onyx_snd_inputgain_info,
226 .get = onyx_snd_inputgain_get,
227 .put = onyx_snd_inputgain_put,
228};
229
230static int onyx_snd_capture_source_info(struct snd_kcontrol *kcontrol,
231 struct snd_ctl_elem_info *uinfo)
232{
233 static char *texts[] = { "Line-In", "Microphone" };
234
235 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
236 uinfo->count = 1;
237 uinfo->value.enumerated.items = 2;
238 if (uinfo->value.enumerated.item > 1)
239 uinfo->value.enumerated.item = 1;
240 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
241 return 0;
242}
243
244static int onyx_snd_capture_source_get(struct snd_kcontrol *kcontrol,
245 struct snd_ctl_elem_value *ucontrol)
246{
247 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
248 s8 v;
249
250 mutex_lock(&onyx->mutex);
251 onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
252 mutex_unlock(&onyx->mutex);
253
254 ucontrol->value.enumerated.item[0] = !!(v&ONYX_ADC_INPUT_MIC);
255
256 return 0;
257}
258
259static void onyx_set_capture_source(struct onyx *onyx, int mic)
260{
261 s8 v;
262
263 mutex_lock(&onyx->mutex);
264 onyx_read_register(onyx, ONYX_REG_ADC_CONTROL, &v);
265 v &= ~ONYX_ADC_INPUT_MIC;
266 if (mic)
267 v |= ONYX_ADC_INPUT_MIC;
268 onyx_write_register(onyx, ONYX_REG_ADC_CONTROL, v);
269 mutex_unlock(&onyx->mutex);
270}
271
272static int onyx_snd_capture_source_put(struct snd_kcontrol *kcontrol,
273 struct snd_ctl_elem_value *ucontrol)
274{
275 onyx_set_capture_source(snd_kcontrol_chip(kcontrol),
276 ucontrol->value.enumerated.item[0]);
277 return 1;
278}
279
280static struct snd_kcontrol_new capture_source_control = {
281 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
282 /* If we name this 'Input Source', it properly shows up in
283 * alsamixer as a selection, * but it's shown under the
284 * 'Playback' category.
285 * If I name it 'Capture Source', it shows up in strange
286 * ways (two bools of which one can be selected at a
287 * time) but at least it's shown in the 'Capture'
288 * category.
289 * I was told that this was due to backward compatibility,
290 * but I don't understand then why the mangling is *not*
291 * done when I name it "Input Source".....
292 */
293 .name = "Capture Source",
294 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
295 .info = onyx_snd_capture_source_info,
296 .get = onyx_snd_capture_source_get,
297 .put = onyx_snd_capture_source_put,
298};
299
300static int onyx_snd_mute_info(struct snd_kcontrol *kcontrol,
301 struct snd_ctl_elem_info *uinfo)
302{
303 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
304 uinfo->count = 2;
305 uinfo->value.integer.min = 0;
306 uinfo->value.integer.max = 1;
307 return 0;
308}
309
310static int onyx_snd_mute_get(struct snd_kcontrol *kcontrol,
311 struct snd_ctl_elem_value *ucontrol)
312{
313 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
314 u8 c;
315
316 mutex_lock(&onyx->mutex);
317 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &c);
318 mutex_unlock(&onyx->mutex);
319
320 ucontrol->value.integer.value[0] = !(c & ONYX_MUTE_LEFT);
321 ucontrol->value.integer.value[1] = !(c & ONYX_MUTE_RIGHT);
322
323 return 0;
324}
325
326static int onyx_snd_mute_put(struct snd_kcontrol *kcontrol,
327 struct snd_ctl_elem_value *ucontrol)
328{
329 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
330 u8 v = 0, c = 0;
331 int err = -EBUSY;
332
333 mutex_lock(&onyx->mutex);
334 if (onyx->analog_locked)
335 goto out_unlock;
336
337 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
338 c = v;
339 c &= ~(ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT);
340 if (!ucontrol->value.integer.value[0])
341 c |= ONYX_MUTE_LEFT;
342 if (!ucontrol->value.integer.value[1])
343 c |= ONYX_MUTE_RIGHT;
344 err = onyx_write_register(onyx, ONYX_REG_DAC_CONTROL, c);
345
346 out_unlock:
347 mutex_unlock(&onyx->mutex);
348
349 return !err ? (v != c) : err;
350}
351
352static struct snd_kcontrol_new mute_control = {
353 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
354 .name = "Master Playback Switch",
355 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
356 .info = onyx_snd_mute_info,
357 .get = onyx_snd_mute_get,
358 .put = onyx_snd_mute_put,
359};
360
361
362static int onyx_snd_single_bit_info(struct snd_kcontrol *kcontrol,
363 struct snd_ctl_elem_info *uinfo)
364{
365 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
366 uinfo->count = 1;
367 uinfo->value.integer.min = 0;
368 uinfo->value.integer.max = 1;
369 return 0;
370}
371
372#define FLAG_POLARITY_INVERT 1
373#define FLAG_SPDIFLOCK 2
374
375static int onyx_snd_single_bit_get(struct snd_kcontrol *kcontrol,
376 struct snd_ctl_elem_value *ucontrol)
377{
378 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
379 u8 c;
380 long int pv = kcontrol->private_value;
381 u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT;
382 u8 address = (pv >> 8) & 0xff;
383 u8 mask = pv & 0xff;
384
385 mutex_lock(&onyx->mutex);
386 onyx_read_register(onyx, address, &c);
387 mutex_unlock(&onyx->mutex);
388
389 ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity;
390
391 return 0;
392}
393
394static int onyx_snd_single_bit_put(struct snd_kcontrol *kcontrol,
395 struct snd_ctl_elem_value *ucontrol)
396{
397 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
398 u8 v = 0, c = 0;
399 int err;
400 long int pv = kcontrol->private_value;
401 u8 polarity = (pv >> 16) & FLAG_POLARITY_INVERT;
402 u8 spdiflock = (pv >> 16) & FLAG_SPDIFLOCK;
403 u8 address = (pv >> 8) & 0xff;
404 u8 mask = pv & 0xff;
405
406 mutex_lock(&onyx->mutex);
407 if (spdiflock && onyx->spdif_locked) {
408 /* even if alsamixer doesn't care.. */
409 err = -EBUSY;
410 goto out_unlock;
411 }
412 onyx_read_register(onyx, address, &v);
413 c = v;
414 c &= ~(mask);
415 if (!!ucontrol->value.integer.value[0] ^ polarity)
416 c |= mask;
417 err = onyx_write_register(onyx, address, c);
418
419 out_unlock:
420 mutex_unlock(&onyx->mutex);
421
422 return !err ? (v != c) : err;
423}
424
425#define SINGLE_BIT(n, type, description, address, mask, flags) \
426static struct snd_kcontrol_new n##_control = { \
427 .iface = SNDRV_CTL_ELEM_IFACE_##type, \
428 .name = description, \
429 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
430 .info = onyx_snd_single_bit_info, \
431 .get = onyx_snd_single_bit_get, \
432 .put = onyx_snd_single_bit_put, \
433 .private_value = (flags << 16) | (address << 8) | mask \
434}
435
436SINGLE_BIT(spdif,
437 MIXER,
438 SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH),
439 ONYX_REG_DIG_INFO4,
440 ONYX_SPDIF_ENABLE,
441 FLAG_SPDIFLOCK);
442SINGLE_BIT(ovr1,
443 MIXER,
444 "Oversampling Rate",
445 ONYX_REG_DAC_CONTROL,
446 ONYX_OVR1,
447 0);
448SINGLE_BIT(flt0,
449 MIXER,
450 "Fast Digital Filter Rolloff",
451 ONYX_REG_DAC_FILTER,
452 ONYX_ROLLOFF_FAST,
453 FLAG_POLARITY_INVERT);
454SINGLE_BIT(hpf,
455 MIXER,
456 "Highpass Filter",
457 ONYX_REG_ADC_HPF_BYPASS,
458 ONYX_HPF_DISABLE,
459 FLAG_POLARITY_INVERT);
460SINGLE_BIT(dm12,
461 MIXER,
462 "Digital De-Emphasis",
463 ONYX_REG_DAC_DEEMPH,
464 ONYX_DIGDEEMPH_CTRL,
465 0);
466
467static int onyx_spdif_info(struct snd_kcontrol *kcontrol,
468 struct snd_ctl_elem_info *uinfo)
469{
470 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
471 uinfo->count = 1;
472 return 0;
473}
474
475static int onyx_spdif_mask_get(struct snd_kcontrol *kcontrol,
476 struct snd_ctl_elem_value *ucontrol)
477{
478 /* datasheet page 30, all others are 0 */
479 ucontrol->value.iec958.status[0] = 0x3e;
480 ucontrol->value.iec958.status[1] = 0xff;
481
482 ucontrol->value.iec958.status[3] = 0x3f;
483 ucontrol->value.iec958.status[4] = 0x0f;
484
485 return 0;
486}
487
488static struct snd_kcontrol_new onyx_spdif_mask = {
489 .access = SNDRV_CTL_ELEM_ACCESS_READ,
490 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
491 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
492 .info = onyx_spdif_info,
493 .get = onyx_spdif_mask_get,
494};
495
496static int onyx_spdif_get(struct snd_kcontrol *kcontrol,
497 struct snd_ctl_elem_value *ucontrol)
498{
499 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
500 u8 v;
501
502 mutex_lock(&onyx->mutex);
503 onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v);
504 ucontrol->value.iec958.status[0] = v & 0x3e;
505
506 onyx_read_register(onyx, ONYX_REG_DIG_INFO2, &v);
507 ucontrol->value.iec958.status[1] = v;
508
509 onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v);
510 ucontrol->value.iec958.status[3] = v & 0x3f;
511
512 onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
513 ucontrol->value.iec958.status[4] = v & 0x0f;
514 mutex_unlock(&onyx->mutex);
515
516 return 0;
517}
518
519static int onyx_spdif_put(struct snd_kcontrol *kcontrol,
520 struct snd_ctl_elem_value *ucontrol)
521{
522 struct onyx *onyx = snd_kcontrol_chip(kcontrol);
523 u8 v;
524
525 mutex_lock(&onyx->mutex);
526 onyx_read_register(onyx, ONYX_REG_DIG_INFO1, &v);
527 v = (v & ~0x3e) | (ucontrol->value.iec958.status[0] & 0x3e);
528 onyx_write_register(onyx, ONYX_REG_DIG_INFO1, v);
529
530 v = ucontrol->value.iec958.status[1];
531 onyx_write_register(onyx, ONYX_REG_DIG_INFO2, v);
532
533 onyx_read_register(onyx, ONYX_REG_DIG_INFO3, &v);
534 v = (v & ~0x3f) | (ucontrol->value.iec958.status[3] & 0x3f);
535 onyx_write_register(onyx, ONYX_REG_DIG_INFO3, v);
536
537 onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
538 v = (v & ~0x0f) | (ucontrol->value.iec958.status[4] & 0x0f);
539 onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v);
540 mutex_unlock(&onyx->mutex);
541
542 return 1;
543}
544
545static struct snd_kcontrol_new onyx_spdif_ctrl = {
546 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
547 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
548 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
549 .info = onyx_spdif_info,
550 .get = onyx_spdif_get,
551 .put = onyx_spdif_put,
552};
553
554/* our registers */
555
556static u8 register_map[] = {
557 ONYX_REG_DAC_ATTEN_LEFT,
558 ONYX_REG_DAC_ATTEN_RIGHT,
559 ONYX_REG_CONTROL,
560 ONYX_REG_DAC_CONTROL,
561 ONYX_REG_DAC_DEEMPH,
562 ONYX_REG_DAC_FILTER,
563 ONYX_REG_DAC_OUTPHASE,
564 ONYX_REG_ADC_CONTROL,
565 ONYX_REG_ADC_HPF_BYPASS,
566 ONYX_REG_DIG_INFO1,
567 ONYX_REG_DIG_INFO2,
568 ONYX_REG_DIG_INFO3,
569 ONYX_REG_DIG_INFO4
570};
571
572static u8 initial_values[ARRAY_SIZE(register_map)] = {
573 0x80, 0x80, /* muted */
574 ONYX_MRST | ONYX_SRST, /* but handled specially! */
575 ONYX_MUTE_LEFT | ONYX_MUTE_RIGHT,
576 0, /* no deemphasis */
577 ONYX_DAC_FILTER_ALWAYS,
578 ONYX_OUTPHASE_INVERTED,
579 (-1 /*dB*/ + 8) & 0xF, /* line in selected, -1 dB gain*/
580 ONYX_ADC_HPF_ALWAYS,
581 (1<<2), /* pcm audio */
582 2, /* category: pcm coder */
583 0, /* sampling frequency 44.1 kHz, clock accuracy level II */
584 1 /* 24 bit depth */
585};
586
587/* reset registers of chip, either to initial or to previous values */
588static int onyx_register_init(struct onyx *onyx)
589{
590 int i;
591 u8 val;
592 u8 regs[sizeof(initial_values)];
593
594 if (!onyx->initialised) {
595 memcpy(regs, initial_values, sizeof(initial_values));
596 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &val))
597 return -1;
598 val &= ~ONYX_SILICONVERSION;
599 val |= initial_values[3];
600 regs[3] = val;
601 } else {
602 for (i=0; i<sizeof(register_map); i++)
603 regs[i] = onyx->cache[register_map[i]-FIRSTREGISTER];
604 }
605
606 for (i=0; i<sizeof(register_map); i++) {
607 if (onyx_write_register(onyx, register_map[i], regs[i]))
608 return -1;
609 }
610 onyx->initialised = 1;
611 return 0;
612}
613
614static struct transfer_info onyx_transfers[] = {
615 /* this is first so we can skip it if no input is present...
616 * No hardware exists with that, but it's here as an example
617 * of what to do :) */
618 {
619 /* analog input */
620 .formats = SNDRV_PCM_FMTBIT_S8 |
621 SNDRV_PCM_FMTBIT_S16_BE |
622 SNDRV_PCM_FMTBIT_S24_BE,
623 .rates = SNDRV_PCM_RATE_8000_96000,
624 .transfer_in = 1,
625 .must_be_clock_source = 0,
626 .tag = 0,
627 },
628 {
629 /* if analog and digital are currently off, anything should go,
630 * so this entry describes everything we can do... */
631 .formats = SNDRV_PCM_FMTBIT_S8 |
632 SNDRV_PCM_FMTBIT_S16_BE |
633 SNDRV_PCM_FMTBIT_S24_BE
634#ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
635 | SNDRV_PCM_FMTBIT_COMPRESSED_16BE
636#endif
637 ,
638 .rates = SNDRV_PCM_RATE_8000_96000,
639 .tag = 0,
640 },
641 {
642 /* analog output */
643 .formats = SNDRV_PCM_FMTBIT_S8 |
644 SNDRV_PCM_FMTBIT_S16_BE |
645 SNDRV_PCM_FMTBIT_S24_BE,
646 .rates = SNDRV_PCM_RATE_8000_96000,
647 .transfer_in = 0,
648 .must_be_clock_source = 0,
649 .tag = 1,
650 },
651 {
652 /* digital pcm output, also possible for analog out */
653 .formats = SNDRV_PCM_FMTBIT_S8 |
654 SNDRV_PCM_FMTBIT_S16_BE |
655 SNDRV_PCM_FMTBIT_S24_BE,
656 .rates = SNDRV_PCM_RATE_32000 |
657 SNDRV_PCM_RATE_44100 |
658 SNDRV_PCM_RATE_48000,
659 .transfer_in = 0,
660 .must_be_clock_source = 0,
661 .tag = 2,
662 },
663#ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
664Once alsa gets supports for this kind of thing we can add it...
665 {
666 /* digital compressed output */
667 .formats = SNDRV_PCM_FMTBIT_COMPRESSED_16BE,
668 .rates = SNDRV_PCM_RATE_32000 |
669 SNDRV_PCM_RATE_44100 |
670 SNDRV_PCM_RATE_48000,
671 .tag = 2,
672 },
673#endif
674 {}
675};
676
677static int onyx_usable(struct codec_info_item *cii,
678 struct transfer_info *ti,
679 struct transfer_info *out)
680{
681 u8 v;
682 struct onyx *onyx = cii->codec_data;
683 int spdif_enabled, analog_enabled;
684
685 mutex_lock(&onyx->mutex);
686 onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
687 spdif_enabled = !!(v & ONYX_SPDIF_ENABLE);
688 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
689 analog_enabled =
690 (v & (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT))
691 != (ONYX_MUTE_RIGHT|ONYX_MUTE_LEFT);
692 mutex_unlock(&onyx->mutex);
693
694 switch (ti->tag) {
695 case 0: return 1;
696 case 1: return analog_enabled;
697 case 2: return spdif_enabled;
698 }
699 return 1;
700}
701
702static int onyx_prepare(struct codec_info_item *cii,
703 struct bus_info *bi,
704 struct snd_pcm_substream *substream)
705{
706 u8 v;
707 struct onyx *onyx = cii->codec_data;
708 int err = -EBUSY;
709
710 mutex_lock(&onyx->mutex);
711
712#ifdef SNDRV_PCM_FMTBIT_COMPRESSED_16BE
713 if (substream->runtime->format == SNDRV_PCM_FMTBIT_COMPRESSED_16BE) {
714 /* mute and lock analog output */
715 onyx_read_register(onyx, ONYX_REG_DAC_CONTROL, &v);
716 if (onyx_write_register(onyx
717 ONYX_REG_DAC_CONTROL,
718 v | ONYX_MUTE_RIGHT | ONYX_MUTE_LEFT))
719 goto out_unlock;
720 onyx->analog_locked = 1;
721 err = 0;
722 goto out_unlock;
723 }
724#endif
725 switch (substream->runtime->rate) {
726 case 32000:
727 case 44100:
728 case 48000:
729 /* these rates are ok for all outputs */
730 /* FIXME: program spdif channel control bits here so that
731 * userspace doesn't have to if it only plays pcm! */
732 err = 0;
733 goto out_unlock;
734 default:
735 /* got some rate that the digital output can't do,
736 * so disable and lock it */
737 onyx_read_register(cii->codec_data, ONYX_REG_DIG_INFO4, &v);
738 if (onyx_write_register(onyx,
739 ONYX_REG_DIG_INFO4,
740 v & ~ONYX_SPDIF_ENABLE))
741 goto out_unlock;
742 onyx->spdif_locked = 1;
743 err = 0;
744 goto out_unlock;
745 }
746
747 out_unlock:
748 mutex_unlock(&onyx->mutex);
749
750 return err;
751}
752
753static int onyx_open(struct codec_info_item *cii,
754 struct snd_pcm_substream *substream)
755{
756 struct onyx *onyx = cii->codec_data;
757
758 mutex_lock(&onyx->mutex);
759 onyx->open_count++;
760 mutex_unlock(&onyx->mutex);
761
762 return 0;
763}
764
765static int onyx_close(struct codec_info_item *cii,
766 struct snd_pcm_substream *substream)
767{
768 struct onyx *onyx = cii->codec_data;
769
770 mutex_lock(&onyx->mutex);
771 onyx->open_count--;
772 if (!onyx->open_count)
773 onyx->spdif_locked = onyx->analog_locked = 0;
774 mutex_unlock(&onyx->mutex);
775
776 return 0;
777}
778
779static int onyx_switch_clock(struct codec_info_item *cii,
780 enum clock_switch what)
781{
782 struct onyx *onyx = cii->codec_data;
783
784 mutex_lock(&onyx->mutex);
785 /* this *MUST* be more elaborate later... */
786 switch (what) {
787 case CLOCK_SWITCH_PREPARE_SLAVE:
788 onyx->codec.gpio->methods->all_amps_off(onyx->codec.gpio);
789 break;
790 case CLOCK_SWITCH_SLAVE:
791 onyx->codec.gpio->methods->all_amps_restore(onyx->codec.gpio);
792 break;
793 default: /* silence warning */
794 break;
795 }
796 mutex_unlock(&onyx->mutex);
797
798 return 0;
799}
800
801#ifdef CONFIG_PM
802
803static int onyx_suspend(struct codec_info_item *cii, pm_message_t state)
804{
805 struct onyx *onyx = cii->codec_data;
806 u8 v;
807 int err = -ENXIO;
808
809 mutex_lock(&onyx->mutex);
810 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
811 goto out_unlock;
812 onyx_write_register(onyx, ONYX_REG_CONTROL, v | ONYX_ADPSV | ONYX_DAPSV);
813 /* Apple does a sleep here but the datasheet says to do it on resume */
814 err = 0;
815 out_unlock:
816 mutex_unlock(&onyx->mutex);
817
818 return err;
819}
820
821static int onyx_resume(struct codec_info_item *cii)
822{
823 struct onyx *onyx = cii->codec_data;
824 u8 v;
825 int err = -ENXIO;
826
827 mutex_lock(&onyx->mutex);
828 /* take codec out of suspend */
829 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &v))
830 goto out_unlock;
831 onyx_write_register(onyx, ONYX_REG_CONTROL, v & ~(ONYX_ADPSV | ONYX_DAPSV));
832 /* FIXME: should divide by sample rate, but 8k is the lowest we go */
833 msleep(2205000/8000);
834 /* reset all values */
835 onyx_register_init(onyx);
836 err = 0;
837 out_unlock:
838 mutex_unlock(&onyx->mutex);
839
840 return err;
841}
842
843#endif /* CONFIG_PM */
844
845static struct codec_info onyx_codec_info = {
846 .transfers = onyx_transfers,
847 .sysclock_factor = 256,
848 .bus_factor = 64,
849 .owner = THIS_MODULE,
850 .usable = onyx_usable,
851 .prepare = onyx_prepare,
852 .open = onyx_open,
853 .close = onyx_close,
854 .switch_clock = onyx_switch_clock,
855#ifdef CONFIG_PM
856 .suspend = onyx_suspend,
857 .resume = onyx_resume,
858#endif
859};
860
861static int onyx_init_codec(struct aoa_codec *codec)
862{
863 struct onyx *onyx = codec_to_onyx(codec);
864 struct snd_kcontrol *ctl;
865 struct codec_info *ci = &onyx_codec_info;
866 u8 v;
867 int err;
868
869 if (!onyx->codec.gpio || !onyx->codec.gpio->methods) {
870 printk(KERN_ERR PFX "gpios not assigned!!\n");
871 return -EINVAL;
872 }
873
874 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
875 msleep(1);
876 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 1);
877 msleep(1);
878 onyx->codec.gpio->methods->set_hw_reset(onyx->codec.gpio, 0);
879 msleep(1);
880
881 if (onyx_register_init(onyx)) {
882 printk(KERN_ERR PFX "failed to initialise onyx registers\n");
883 return -ENODEV;
884 }
885
886 if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, onyx, &ops)) {
887 printk(KERN_ERR PFX "failed to create onyx snd device!\n");
888 return -ENODEV;
889 }
890
891 /* nothing connected? what a joke! */
892 if ((onyx->codec.connected & 0xF) == 0)
893 return -ENOTCONN;
894
895 /* if no inputs are present... */
896 if ((onyx->codec.connected & 0xC) == 0) {
897 if (!onyx->codec_info)
898 onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL);
899 if (!onyx->codec_info)
900 return -ENOMEM;
901 ci = onyx->codec_info;
902 *ci = onyx_codec_info;
903 ci->transfers++;
904 }
905
906 /* if no outputs are present... */
907 if ((onyx->codec.connected & 3) == 0) {
908 if (!onyx->codec_info)
909 onyx->codec_info = kmalloc(sizeof(struct codec_info), GFP_KERNEL);
910 if (!onyx->codec_info)
911 return -ENOMEM;
912 ci = onyx->codec_info;
913 /* this is fine as there have to be inputs
914 * if we end up in this part of the code */
915 *ci = onyx_codec_info;
916 ci->transfers[1].formats = 0;
917 }
918
919 if (onyx->codec.soundbus_dev->attach_codec(onyx->codec.soundbus_dev,
920 aoa_get_card(),
921 ci, onyx)) {
922 printk(KERN_ERR PFX "error creating onyx pcm\n");
923 return -ENODEV;
924 }
925#define ADDCTL(n) \
926 do { \
927 ctl = snd_ctl_new1(&n, onyx); \
928 if (ctl) { \
929 ctl->id.device = \
930 onyx->codec.soundbus_dev->pcm->device; \
931 err = aoa_snd_ctl_add(ctl); \
932 if (err) \
933 goto error; \
934 } \
935 } while (0)
936
937 if (onyx->codec.soundbus_dev->pcm) {
938 /* give the user appropriate controls
939 * depending on what inputs are connected */
940 if ((onyx->codec.connected & 0xC) == 0xC)
941 ADDCTL(capture_source_control);
942 else if (onyx->codec.connected & 4)
943 onyx_set_capture_source(onyx, 0);
944 else
945 onyx_set_capture_source(onyx, 1);
946 if (onyx->codec.connected & 0xC)
947 ADDCTL(inputgain_control);
948
949 /* depending on what output is connected,
950 * give the user appropriate controls */
951 if (onyx->codec.connected & 1) {
952 ADDCTL(volume_control);
953 ADDCTL(mute_control);
954 ADDCTL(ovr1_control);
955 ADDCTL(flt0_control);
956 ADDCTL(hpf_control);
957 ADDCTL(dm12_control);
958 /* spdif control defaults to off */
959 }
960 if (onyx->codec.connected & 2) {
961 ADDCTL(onyx_spdif_mask);
962 ADDCTL(onyx_spdif_ctrl);
963 }
964 if ((onyx->codec.connected & 3) == 3)
965 ADDCTL(spdif_control);
966 /* if only S/PDIF is connected, enable it unconditionally */
967 if ((onyx->codec.connected & 3) == 2) {
968 onyx_read_register(onyx, ONYX_REG_DIG_INFO4, &v);
969 v |= ONYX_SPDIF_ENABLE;
970 onyx_write_register(onyx, ONYX_REG_DIG_INFO4, v);
971 }
972 }
973#undef ADDCTL
974 printk(KERN_INFO PFX "attached to onyx codec via i2c\n");
975
976 return 0;
977 error:
978 onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
979 snd_device_free(aoa_get_card(), onyx);
980 return err;
981}
982
983static void onyx_exit_codec(struct aoa_codec *codec)
984{
985 struct onyx *onyx = codec_to_onyx(codec);
986
987 if (!onyx->codec.soundbus_dev) {
988 printk(KERN_ERR PFX "onyx_exit_codec called without soundbus_dev!\n");
989 return;
990 }
991 onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
992}
993
994static struct i2c_driver onyx_driver;
995
996static int onyx_create(struct i2c_adapter *adapter,
997 struct device_node *node,
998 int addr)
999{
1000 struct onyx *onyx;
1001 u8 dummy;
1002
1003 onyx = kzalloc(sizeof(struct onyx), GFP_KERNEL);
1004
1005 if (!onyx)
1006 return -ENOMEM;
1007
1008 mutex_init(&onyx->mutex);
1009 onyx->i2c.driver = &onyx_driver;
1010 onyx->i2c.adapter = adapter;
1011 onyx->i2c.addr = addr & 0x7f;
1012 strlcpy(onyx->i2c.name, "onyx audio codec", I2C_NAME_SIZE-1);
1013
1014 if (i2c_attach_client(&onyx->i2c)) {
1015 printk(KERN_ERR PFX "failed to attach to i2c\n");
1016 goto fail;
1017 }
1018
1019 /* we try to read from register ONYX_REG_CONTROL
1020 * to check if the codec is present */
1021 if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) {
1022 i2c_detach_client(&onyx->i2c);
1023 printk(KERN_ERR PFX "failed to read control register\n");
1024 goto fail;
1025 }
1026
1027 strlcpy(onyx->codec.name, "onyx", MAX_CODEC_NAME_LEN-1);
1028 onyx->codec.owner = THIS_MODULE;
1029 onyx->codec.init = onyx_init_codec;
1030 onyx->codec.exit = onyx_exit_codec;
1031 onyx->codec.node = of_node_get(node);
1032
1033 if (aoa_codec_register(&onyx->codec)) {
1034 i2c_detach_client(&onyx->i2c);
1035 goto fail;
1036 }
1037 printk(KERN_DEBUG PFX "created and attached onyx instance\n");
1038 return 0;
1039 fail:
1040 kfree(onyx);
1041 return -EINVAL;
1042}
1043
1044static int onyx_i2c_attach(struct i2c_adapter *adapter)
1045{
1046 struct device_node *busnode, *dev = NULL;
1047 struct pmac_i2c_bus *bus;
1048
1049 bus = pmac_i2c_adapter_to_bus(adapter);
1050 if (bus == NULL)
1051 return -ENODEV;
1052 busnode = pmac_i2c_get_bus_node(bus);
1053
1054 while ((dev = of_get_next_child(busnode, dev)) != NULL) {
1055 if (device_is_compatible(dev, "pcm3052")) {
1056 u32 *addr;
1057 printk(KERN_DEBUG PFX "found pcm3052\n");
1058 addr = (u32 *) get_property(dev, "reg", NULL);
1059 if (!addr)
1060 return -ENODEV;
1061 return onyx_create(adapter, dev, (*addr)>>1);
1062 }
1063 }
1064
1065 /* if that didn't work, try desperate mode for older
1066 * machines that have stuff missing from the device tree */
1067
1068 if (!device_is_compatible(busnode, "k2-i2c"))
1069 return -ENODEV;
1070
1071 printk(KERN_DEBUG PFX "found k2-i2c, checking if onyx chip is on it\n");
1072 /* probe both possible addresses for the onyx chip */
1073 if (onyx_create(adapter, NULL, 0x46) == 0)
1074 return 0;
1075 return onyx_create(adapter, NULL, 0x47);
1076}
1077
1078static int onyx_i2c_detach(struct i2c_client *client)
1079{
1080 struct onyx *onyx = container_of(client, struct onyx, i2c);
1081 int err;
1082
1083 if ((err = i2c_detach_client(client)))
1084 return err;
1085 aoa_codec_unregister(&onyx->codec);
1086 of_node_put(onyx->codec.node);
1087 if (onyx->codec_info)
1088 kfree(onyx->codec_info);
1089 kfree(onyx);
1090 return 0;
1091}
1092
1093static struct i2c_driver onyx_driver = {
1094 .driver = {
1095 .name = "aoa_codec_onyx",
1096 .owner = THIS_MODULE,
1097 },
1098 .attach_adapter = onyx_i2c_attach,
1099 .detach_client = onyx_i2c_detach,
1100};
1101
1102static int __init onyx_init(void)
1103{
1104 return i2c_add_driver(&onyx_driver);
1105}
1106
1107static void __exit onyx_exit(void)
1108{
1109 i2c_del_driver(&onyx_driver);
1110}
1111
1112module_init(onyx_init);
1113module_exit(onyx_exit);
diff --git a/sound/aoa/codecs/snd-aoa-codec-onyx.h b/sound/aoa/codecs/snd-aoa-codec-onyx.h
new file mode 100644
index 000000000000..aeedda773699
--- /dev/null
+++ b/sound/aoa/codecs/snd-aoa-codec-onyx.h
@@ -0,0 +1,76 @@
1/*
2 * Apple Onboard Audio driver for Onyx codec (header)
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8#ifndef __SND_AOA_CODEC_ONYX_H
9#define __SND_AOA_CODEC_ONYX_H
10#include <stddef.h>
11#include <linux/i2c.h>
12#include <linux/i2c-dev.h>
13#include <asm/pmac_low_i2c.h>
14#include <asm/prom.h>
15
16/* PCM3052 register definitions */
17
18/* the attenuation registers take values from
19 * -1 (0dB) to -127 (-63.0 dB) or others (muted) */
20#define ONYX_REG_DAC_ATTEN_LEFT 65
21#define FIRSTREGISTER ONYX_REG_DAC_ATTEN_LEFT
22#define ONYX_REG_DAC_ATTEN_RIGHT 66
23
24#define ONYX_REG_CONTROL 67
25# define ONYX_MRST (1<<7)
26# define ONYX_SRST (1<<6)
27# define ONYX_ADPSV (1<<5)
28# define ONYX_DAPSV (1<<4)
29# define ONYX_SILICONVERSION (1<<0)
30/* all others reserved */
31
32#define ONYX_REG_DAC_CONTROL 68
33# define ONYX_OVR1 (1<<6)
34# define ONYX_MUTE_RIGHT (1<<1)
35# define ONYX_MUTE_LEFT (1<<0)
36
37#define ONYX_REG_DAC_DEEMPH 69
38# define ONYX_DIGDEEMPH_SHIFT 5
39# define ONYX_DIGDEEMPH_MASK (3<<ONYX_DIGDEEMPH_SHIFT)
40# define ONYX_DIGDEEMPH_CTRL (1<<4)
41
42#define ONYX_REG_DAC_FILTER 70
43# define ONYX_ROLLOFF_FAST (1<<5)
44# define ONYX_DAC_FILTER_ALWAYS (1<<2)
45
46#define ONYX_REG_DAC_OUTPHASE 71
47# define ONYX_OUTPHASE_INVERTED (1<<0)
48
49#define ONYX_REG_ADC_CONTROL 72
50# define ONYX_ADC_INPUT_MIC (1<<5)
51/* 8 + input gain in dB, valid range for input gain is -4 .. 20 dB */
52# define ONYX_ADC_PGA_GAIN_MASK 0x1f
53
54#define ONYX_REG_ADC_HPF_BYPASS 75
55# define ONYX_HPF_DISABLE (1<<3)
56# define ONYX_ADC_HPF_ALWAYS (1<<2)
57
58#define ONYX_REG_DIG_INFO1 77
59# define ONYX_MASK_DIN_TO_BPZ (1<<7)
60/* bits 1-5 control channel bits 1-5 */
61# define ONYX_DIGOUT_DISABLE (1<<0)
62
63#define ONYX_REG_DIG_INFO2 78
64/* controls channel bits 8-15 */
65
66#define ONYX_REG_DIG_INFO3 79
67/* control channel bits 24-29, high 2 bits reserved */
68
69#define ONYX_REG_DIG_INFO4 80
70# define ONYX_VALIDL (1<<7)
71# define ONYX_VALIDR (1<<6)
72# define ONYX_SPDIF_ENABLE (1<<5)
73/* lower 4 bits control bits 32-35 of channel control and word length */
74# define ONYX_WORDLEN_MASK (0xF)
75
76#endif /* __SND_AOA_CODEC_ONYX_H */
diff --git a/sound/aoa/codecs/snd-aoa-codec-tas-gain-table.h b/sound/aoa/codecs/snd-aoa-codec-tas-gain-table.h
new file mode 100644
index 000000000000..4cfa6757715e
--- /dev/null
+++ b/sound/aoa/codecs/snd-aoa-codec-tas-gain-table.h
@@ -0,0 +1,209 @@
1/*
2 This is the program used to generate below table.
3
4#include <stdio.h>
5#include <math.h>
6int main() {
7 int dB2;
8 printf("/" "* This file is only included exactly once!\n");
9 printf(" *\n");
10 printf(" * If they'd only tell us that generating this table was\n");
11 printf(" * as easy as calculating\n");
12 printf(" * hwvalue = 1048576.0*exp(0.057564628*dB*2)\n");
13 printf(" * :) *" "/\n");
14 printf("static int tas_gaintable[] = {\n");
15 printf(" 0x000000, /" "* -infinity dB *" "/\n");
16 for (dB2=-140;dB2<=36;dB2++)
17 printf(" 0x%.6x, /" "* %-02.1f dB *" "/\n", (int)(1048576.0*exp(0.057564628*dB2)), dB2/2.0);
18 printf("};\n\n");
19}
20
21*/
22
23/* This file is only included exactly once!
24 *
25 * If they'd only tell us that generating this table was
26 * as easy as calculating
27 * hwvalue = 1048576.0*exp(0.057564628*dB*2)
28 * :) */
29static int tas_gaintable[] = {
30 0x000000, /* -infinity dB */
31 0x00014b, /* -70.0 dB */
32 0x00015f, /* -69.5 dB */
33 0x000174, /* -69.0 dB */
34 0x00018a, /* -68.5 dB */
35 0x0001a1, /* -68.0 dB */
36 0x0001ba, /* -67.5 dB */
37 0x0001d4, /* -67.0 dB */
38 0x0001f0, /* -66.5 dB */
39 0x00020d, /* -66.0 dB */
40 0x00022c, /* -65.5 dB */
41 0x00024d, /* -65.0 dB */
42 0x000270, /* -64.5 dB */
43 0x000295, /* -64.0 dB */
44 0x0002bc, /* -63.5 dB */
45 0x0002e6, /* -63.0 dB */
46 0x000312, /* -62.5 dB */
47 0x000340, /* -62.0 dB */
48 0x000372, /* -61.5 dB */
49 0x0003a6, /* -61.0 dB */
50 0x0003dd, /* -60.5 dB */
51 0x000418, /* -60.0 dB */
52 0x000456, /* -59.5 dB */
53 0x000498, /* -59.0 dB */
54 0x0004de, /* -58.5 dB */
55 0x000528, /* -58.0 dB */
56 0x000576, /* -57.5 dB */
57 0x0005c9, /* -57.0 dB */
58 0x000620, /* -56.5 dB */
59 0x00067d, /* -56.0 dB */
60 0x0006e0, /* -55.5 dB */
61 0x000748, /* -55.0 dB */
62 0x0007b7, /* -54.5 dB */
63 0x00082c, /* -54.0 dB */
64 0x0008a8, /* -53.5 dB */
65 0x00092b, /* -53.0 dB */
66 0x0009b6, /* -52.5 dB */
67 0x000a49, /* -52.0 dB */
68 0x000ae5, /* -51.5 dB */
69 0x000b8b, /* -51.0 dB */
70 0x000c3a, /* -50.5 dB */
71 0x000cf3, /* -50.0 dB */
72 0x000db8, /* -49.5 dB */
73 0x000e88, /* -49.0 dB */
74 0x000f64, /* -48.5 dB */
75 0x00104e, /* -48.0 dB */
76 0x001145, /* -47.5 dB */
77 0x00124b, /* -47.0 dB */
78 0x001361, /* -46.5 dB */
79 0x001487, /* -46.0 dB */
80 0x0015be, /* -45.5 dB */
81 0x001708, /* -45.0 dB */
82 0x001865, /* -44.5 dB */
83 0x0019d8, /* -44.0 dB */
84 0x001b60, /* -43.5 dB */
85 0x001cff, /* -43.0 dB */
86 0x001eb7, /* -42.5 dB */
87 0x002089, /* -42.0 dB */
88 0x002276, /* -41.5 dB */
89 0x002481, /* -41.0 dB */
90 0x0026ab, /* -40.5 dB */
91 0x0028f5, /* -40.0 dB */
92 0x002b63, /* -39.5 dB */
93 0x002df5, /* -39.0 dB */
94 0x0030ae, /* -38.5 dB */
95 0x003390, /* -38.0 dB */
96 0x00369e, /* -37.5 dB */
97 0x0039db, /* -37.0 dB */
98 0x003d49, /* -36.5 dB */
99 0x0040ea, /* -36.0 dB */
100 0x0044c3, /* -35.5 dB */
101 0x0048d6, /* -35.0 dB */
102 0x004d27, /* -34.5 dB */
103 0x0051b9, /* -34.0 dB */
104 0x005691, /* -33.5 dB */
105 0x005bb2, /* -33.0 dB */
106 0x006121, /* -32.5 dB */
107 0x0066e3, /* -32.0 dB */
108 0x006cfb, /* -31.5 dB */
109 0x007370, /* -31.0 dB */
110 0x007a48, /* -30.5 dB */
111 0x008186, /* -30.0 dB */
112 0x008933, /* -29.5 dB */
113 0x009154, /* -29.0 dB */
114 0x0099f1, /* -28.5 dB */
115 0x00a310, /* -28.0 dB */
116 0x00acba, /* -27.5 dB */
117 0x00b6f6, /* -27.0 dB */
118 0x00c1cd, /* -26.5 dB */
119 0x00cd49, /* -26.0 dB */
120 0x00d973, /* -25.5 dB */
121 0x00e655, /* -25.0 dB */
122 0x00f3fb, /* -24.5 dB */
123 0x010270, /* -24.0 dB */
124 0x0111c0, /* -23.5 dB */
125 0x0121f9, /* -23.0 dB */
126 0x013328, /* -22.5 dB */
127 0x01455b, /* -22.0 dB */
128 0x0158a2, /* -21.5 dB */
129 0x016d0e, /* -21.0 dB */
130 0x0182af, /* -20.5 dB */
131 0x019999, /* -20.0 dB */
132 0x01b1de, /* -19.5 dB */
133 0x01cb94, /* -19.0 dB */
134 0x01e6cf, /* -18.5 dB */
135 0x0203a7, /* -18.0 dB */
136 0x022235, /* -17.5 dB */
137 0x024293, /* -17.0 dB */
138 0x0264db, /* -16.5 dB */
139 0x02892c, /* -16.0 dB */
140 0x02afa3, /* -15.5 dB */
141 0x02d862, /* -15.0 dB */
142 0x03038a, /* -14.5 dB */
143 0x033142, /* -14.0 dB */
144 0x0361af, /* -13.5 dB */
145 0x0394fa, /* -13.0 dB */
146 0x03cb50, /* -12.5 dB */
147 0x0404de, /* -12.0 dB */
148 0x0441d5, /* -11.5 dB */
149 0x048268, /* -11.0 dB */
150 0x04c6d0, /* -10.5 dB */
151 0x050f44, /* -10.0 dB */
152 0x055c04, /* -9.5 dB */
153 0x05ad50, /* -9.0 dB */
154 0x06036e, /* -8.5 dB */
155 0x065ea5, /* -8.0 dB */
156 0x06bf44, /* -7.5 dB */
157 0x07259d, /* -7.0 dB */
158 0x079207, /* -6.5 dB */
159 0x0804dc, /* -6.0 dB */
160 0x087e80, /* -5.5 dB */
161 0x08ff59, /* -5.0 dB */
162 0x0987d5, /* -4.5 dB */
163 0x0a1866, /* -4.0 dB */
164 0x0ab189, /* -3.5 dB */
165 0x0b53be, /* -3.0 dB */
166 0x0bff91, /* -2.5 dB */
167 0x0cb591, /* -2.0 dB */
168 0x0d765a, /* -1.5 dB */
169 0x0e4290, /* -1.0 dB */
170 0x0f1adf, /* -0.5 dB */
171 0x100000, /* 0.0 dB */
172 0x10f2b4, /* 0.5 dB */
173 0x11f3c9, /* 1.0 dB */
174 0x13041a, /* 1.5 dB */
175 0x14248e, /* 2.0 dB */
176 0x15561a, /* 2.5 dB */
177 0x1699c0, /* 3.0 dB */
178 0x17f094, /* 3.5 dB */
179 0x195bb8, /* 4.0 dB */
180 0x1adc61, /* 4.5 dB */
181 0x1c73d5, /* 5.0 dB */
182 0x1e236d, /* 5.5 dB */
183 0x1fec98, /* 6.0 dB */
184 0x21d0d9, /* 6.5 dB */
185 0x23d1cd, /* 7.0 dB */
186 0x25f125, /* 7.5 dB */
187 0x2830af, /* 8.0 dB */
188 0x2a9254, /* 8.5 dB */
189 0x2d1818, /* 9.0 dB */
190 0x2fc420, /* 9.5 dB */
191 0x3298b0, /* 10.0 dB */
192 0x35982f, /* 10.5 dB */
193 0x38c528, /* 11.0 dB */
194 0x3c224c, /* 11.5 dB */
195 0x3fb278, /* 12.0 dB */
196 0x4378b0, /* 12.5 dB */
197 0x477829, /* 13.0 dB */
198 0x4bb446, /* 13.5 dB */
199 0x5030a1, /* 14.0 dB */
200 0x54f106, /* 14.5 dB */
201 0x59f980, /* 15.0 dB */
202 0x5f4e52, /* 15.5 dB */
203 0x64f403, /* 16.0 dB */
204 0x6aef5e, /* 16.5 dB */
205 0x714575, /* 17.0 dB */
206 0x77fbaa, /* 17.5 dB */
207 0x7f17af, /* 18.0 dB */
208};
209
diff --git a/sound/aoa/codecs/snd-aoa-codec-tas.c b/sound/aoa/codecs/snd-aoa-codec-tas.c
new file mode 100644
index 000000000000..2e39ff6ee349
--- /dev/null
+++ b/sound/aoa/codecs/snd-aoa-codec-tas.c
@@ -0,0 +1,654 @@
1/*
2 * Apple Onboard Audio driver for tas codec
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 *
8 * Open questions:
9 * - How to distinguish between 3004 and versions?
10 *
11 * FIXMEs:
12 * - This codec driver doesn't honour the 'connected'
13 * property of the aoa_codec struct, hence if
14 * it is used in machines where not everything is
15 * connected it will display wrong mixer elements.
16 * - Driver assumes that the microphone is always
17 * monaureal and connected to the right channel of
18 * the input. This should also be a codec-dependent
19 * flag, maybe the codec should have 3 different
20 * bits for the three different possibilities how
21 * it can be hooked up...
22 * But as long as I don't see any hardware hooked
23 * up that way...
24 * - As Apple notes in their code, the tas3004 seems
25 * to delay the right channel by one sample. You can
26 * see this when for example recording stereo in
27 * audacity, or recording the tas output via cable
28 * on another machine (use a sinus generator or so).
29 * I tried programming the BiQuads but couldn't
30 * make the delay work, maybe someone can read the
31 * datasheet and fix it. The relevant Apple comment
32 * is in AppleTAS3004Audio.cpp lines 1637 ff. Note
33 * that their comment describing how they program
34 * the filters sucks...
35 *
36 * Other things:
37 * - this should actually register *two* aoa_codec
38 * structs since it has two inputs. Then it must
39 * use the prepare callback to forbid running the
40 * secondary output on a different clock.
41 * Also, whatever bus knows how to do this must
42 * provide two soundbus_dev devices and the fabric
43 * must be able to link them correctly.
44 *
45 * I don't even know if Apple ever uses the second
46 * port on the tas3004 though, I don't think their
47 * i2s controllers can even do it. OTOH, they all
48 * derive the clocks from common clocks, so it
49 * might just be possible. The framework allows the
50 * codec to refine the transfer_info items in the
51 * usable callback, so we can simply remove the
52 * rates the second instance is not using when it
53 * actually is in use.
54 * Maybe we'll need to make the sound busses have
55 * a 'clock group id' value so the codec can
56 * determine if the two outputs can be driven at
57 * the same time. But that is likely overkill, up
58 * to the fabric to not link them up incorrectly,
59 * and up to the hardware designer to not wire
60 * them up in some weird unusable way.
61 */
62#include <stddef.h>
63#include <linux/i2c.h>
64#include <linux/i2c-dev.h>
65#include <asm/pmac_low_i2c.h>
66#include <asm/prom.h>
67#include <linux/delay.h>
68#include <linux/module.h>
69MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
70MODULE_LICENSE("GPL");
71MODULE_DESCRIPTION("tas codec driver for snd-aoa");
72
73#include "snd-aoa-codec-tas.h"
74#include "snd-aoa-codec-tas-gain-table.h"
75#include "../aoa.h"
76#include "../soundbus/soundbus.h"
77
78
79#define PFX "snd-aoa-codec-tas: "
80
81struct tas {
82 struct aoa_codec codec;
83 struct i2c_client i2c;
84 u32 muted_l:1, muted_r:1,
85 controls_created:1;
86 u8 cached_volume_l, cached_volume_r;
87 u8 mixer_l[3], mixer_r[3];
88 u8 acr;
89};
90
91static struct tas *codec_to_tas(struct aoa_codec *codec)
92{
93 return container_of(codec, struct tas, codec);
94}
95
96static inline int tas_write_reg(struct tas *tas, u8 reg, u8 len, u8 *data)
97{
98 if (len == 1)
99 return i2c_smbus_write_byte_data(&tas->i2c, reg, *data);
100 else
101 return i2c_smbus_write_i2c_block_data(&tas->i2c, reg, len, data);
102}
103
104static void tas_set_volume(struct tas *tas)
105{
106 u8 block[6];
107 int tmp;
108 u8 left, right;
109
110 left = tas->cached_volume_l;
111 right = tas->cached_volume_r;
112
113 if (left > 177) left = 177;
114 if (right > 177) right = 177;
115
116 if (tas->muted_l) left = 0;
117 if (tas->muted_r) right = 0;
118
119 /* analysing the volume and mixer tables shows
120 * that they are similar enough when we shift
121 * the mixer table down by 4 bits. The error
122 * is miniscule, in just one item the error
123 * is 1, at a value of 0x07f17b (mixer table
124 * value is 0x07f17a) */
125 tmp = tas_gaintable[left];
126 block[0] = tmp>>20;
127 block[1] = tmp>>12;
128 block[2] = tmp>>4;
129 tmp = tas_gaintable[right];
130 block[3] = tmp>>20;
131 block[4] = tmp>>12;
132 block[5] = tmp>>4;
133 tas_write_reg(tas, TAS_REG_VOL, 6, block);
134}
135
136static void tas_set_mixer(struct tas *tas)
137{
138 u8 block[9];
139 int tmp, i;
140 u8 val;
141
142 for (i=0;i<3;i++) {
143 val = tas->mixer_l[i];
144 if (val > 177) val = 177;
145 tmp = tas_gaintable[val];
146 block[3*i+0] = tmp>>16;
147 block[3*i+1] = tmp>>8;
148 block[3*i+2] = tmp;
149 }
150 tas_write_reg(tas, TAS_REG_LMIX, 9, block);
151
152 for (i=0;i<3;i++) {
153 val = tas->mixer_r[i];
154 if (val > 177) val = 177;
155 tmp = tas_gaintable[val];
156 block[3*i+0] = tmp>>16;
157 block[3*i+1] = tmp>>8;
158 block[3*i+2] = tmp;
159 }
160 tas_write_reg(tas, TAS_REG_RMIX, 9, block);
161}
162
163/* alsa stuff */
164
165static int tas_dev_register(struct snd_device *dev)
166{
167 return 0;
168}
169
170static struct snd_device_ops ops = {
171 .dev_register = tas_dev_register,
172};
173
174static int tas_snd_vol_info(struct snd_kcontrol *kcontrol,
175 struct snd_ctl_elem_info *uinfo)
176{
177 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
178 uinfo->count = 2;
179 uinfo->value.integer.min = 0;
180 uinfo->value.integer.max = 177;
181 return 0;
182}
183
184static int tas_snd_vol_get(struct snd_kcontrol *kcontrol,
185 struct snd_ctl_elem_value *ucontrol)
186{
187 struct tas *tas = snd_kcontrol_chip(kcontrol);
188
189 ucontrol->value.integer.value[0] = tas->cached_volume_l;
190 ucontrol->value.integer.value[1] = tas->cached_volume_r;
191 return 0;
192}
193
194static int tas_snd_vol_put(struct snd_kcontrol *kcontrol,
195 struct snd_ctl_elem_value *ucontrol)
196{
197 struct tas *tas = snd_kcontrol_chip(kcontrol);
198
199 if (tas->cached_volume_l == ucontrol->value.integer.value[0]
200 && tas->cached_volume_r == ucontrol->value.integer.value[1])
201 return 0;
202
203 tas->cached_volume_l = ucontrol->value.integer.value[0];
204 tas->cached_volume_r = ucontrol->value.integer.value[1];
205 tas_set_volume(tas);
206 return 1;
207}
208
209static struct snd_kcontrol_new volume_control = {
210 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
211 .name = "Master Playback Volume",
212 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
213 .info = tas_snd_vol_info,
214 .get = tas_snd_vol_get,
215 .put = tas_snd_vol_put,
216};
217
218static int tas_snd_mute_info(struct snd_kcontrol *kcontrol,
219 struct snd_ctl_elem_info *uinfo)
220{
221 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
222 uinfo->count = 2;
223 uinfo->value.integer.min = 0;
224 uinfo->value.integer.max = 1;
225 return 0;
226}
227
228static int tas_snd_mute_get(struct snd_kcontrol *kcontrol,
229 struct snd_ctl_elem_value *ucontrol)
230{
231 struct tas *tas = snd_kcontrol_chip(kcontrol);
232
233 ucontrol->value.integer.value[0] = !tas->muted_l;
234 ucontrol->value.integer.value[1] = !tas->muted_r;
235 return 0;
236}
237
238static int tas_snd_mute_put(struct snd_kcontrol *kcontrol,
239 struct snd_ctl_elem_value *ucontrol)
240{
241 struct tas *tas = snd_kcontrol_chip(kcontrol);
242
243 if (tas->muted_l == !ucontrol->value.integer.value[0]
244 && tas->muted_r == !ucontrol->value.integer.value[1])
245 return 0;
246
247 tas->muted_l = !ucontrol->value.integer.value[0];
248 tas->muted_r = !ucontrol->value.integer.value[1];
249 tas_set_volume(tas);
250 return 1;
251}
252
253static struct snd_kcontrol_new mute_control = {
254 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
255 .name = "Master Playback Switch",
256 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
257 .info = tas_snd_mute_info,
258 .get = tas_snd_mute_get,
259 .put = tas_snd_mute_put,
260};
261
262static int tas_snd_mixer_info(struct snd_kcontrol *kcontrol,
263 struct snd_ctl_elem_info *uinfo)
264{
265 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
266 uinfo->count = 2;
267 uinfo->value.integer.min = 0;
268 uinfo->value.integer.max = 177;
269 return 0;
270}
271
272static int tas_snd_mixer_get(struct snd_kcontrol *kcontrol,
273 struct snd_ctl_elem_value *ucontrol)
274{
275 struct tas *tas = snd_kcontrol_chip(kcontrol);
276 int idx = kcontrol->private_value;
277
278 ucontrol->value.integer.value[0] = tas->mixer_l[idx];
279 ucontrol->value.integer.value[1] = tas->mixer_r[idx];
280
281 return 0;
282}
283
284static int tas_snd_mixer_put(struct snd_kcontrol *kcontrol,
285 struct snd_ctl_elem_value *ucontrol)
286{
287 struct tas *tas = snd_kcontrol_chip(kcontrol);
288 int idx = kcontrol->private_value;
289
290 if (tas->mixer_l[idx] == ucontrol->value.integer.value[0]
291 && tas->mixer_r[idx] == ucontrol->value.integer.value[1])
292 return 0;
293
294 tas->mixer_l[idx] = ucontrol->value.integer.value[0];
295 tas->mixer_r[idx] = ucontrol->value.integer.value[1];
296
297 tas_set_mixer(tas);
298 return 1;
299}
300
301#define MIXER_CONTROL(n,descr,idx) \
302static struct snd_kcontrol_new n##_control = { \
303 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
304 .name = descr " Playback Volume", \
305 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
306 .info = tas_snd_mixer_info, \
307 .get = tas_snd_mixer_get, \
308 .put = tas_snd_mixer_put, \
309 .private_value = idx, \
310}
311
312MIXER_CONTROL(pcm1, "PCM1", 0);
313MIXER_CONTROL(monitor, "Monitor", 2);
314
315static int tas_snd_capture_source_info(struct snd_kcontrol *kcontrol,
316 struct snd_ctl_elem_info *uinfo)
317{
318 static char *texts[] = { "Line-In", "Microphone" };
319
320 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
321 uinfo->count = 1;
322 uinfo->value.enumerated.items = 2;
323 if (uinfo->value.enumerated.item > 1)
324 uinfo->value.enumerated.item = 1;
325 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
326 return 0;
327}
328
329static int tas_snd_capture_source_get(struct snd_kcontrol *kcontrol,
330 struct snd_ctl_elem_value *ucontrol)
331{
332 struct tas *tas = snd_kcontrol_chip(kcontrol);
333
334 ucontrol->value.enumerated.item[0] = !!(tas->acr & TAS_ACR_INPUT_B);
335 return 0;
336}
337
338static int tas_snd_capture_source_put(struct snd_kcontrol *kcontrol,
339 struct snd_ctl_elem_value *ucontrol)
340{
341 struct tas *tas = snd_kcontrol_chip(kcontrol);
342 int oldacr = tas->acr;
343
344 tas->acr &= ~TAS_ACR_INPUT_B;
345 if (ucontrol->value.enumerated.item[0])
346 tas->acr |= TAS_ACR_INPUT_B;
347 if (oldacr == tas->acr)
348 return 0;
349 tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
350 return 1;
351}
352
353static struct snd_kcontrol_new capture_source_control = {
354 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
355 /* If we name this 'Input Source', it properly shows up in
356 * alsamixer as a selection, * but it's shown under the
357 * 'Playback' category.
358 * If I name it 'Capture Source', it shows up in strange
359 * ways (two bools of which one can be selected at a
360 * time) but at least it's shown in the 'Capture'
361 * category.
362 * I was told that this was due to backward compatibility,
363 * but I don't understand then why the mangling is *not*
364 * done when I name it "Input Source".....
365 */
366 .name = "Capture Source",
367 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
368 .info = tas_snd_capture_source_info,
369 .get = tas_snd_capture_source_get,
370 .put = tas_snd_capture_source_put,
371};
372
373
374static struct transfer_info tas_transfers[] = {
375 {
376 /* input */
377 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_BE |
378 SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S24_BE,
379 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
380 .transfer_in = 1,
381 },
382 {
383 /* output */
384 .formats = SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S16_BE |
385 SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S24_BE,
386 .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
387 .transfer_in = 0,
388 },
389 {}
390};
391
392static int tas_usable(struct codec_info_item *cii,
393 struct transfer_info *ti,
394 struct transfer_info *out)
395{
396 return 1;
397}
398
399static int tas_reset_init(struct tas *tas)
400{
401 u8 tmp;
402 tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0);
403 msleep(1);
404 tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 1);
405 msleep(1);
406 tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0);
407 msleep(1);
408
409 tas->acr &= ~TAS_ACR_ANALOG_PDOWN;
410 tas->acr |= TAS_ACR_B_MONAUREAL | TAS_ACR_B_MON_SEL_RIGHT;
411 if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr))
412 return -ENODEV;
413
414 tmp = TAS_MCS_SCLK64 | TAS_MCS_SPORT_MODE_I2S | TAS_MCS_SPORT_WL_24BIT;
415 if (tas_write_reg(tas, TAS_REG_MCS, 1, &tmp))
416 return -ENODEV;
417
418 tmp = 0;
419 if (tas_write_reg(tas, TAS_REG_MCS2, 1, &tmp))
420 return -ENODEV;
421
422 return 0;
423}
424
425/* we are controlled via i2c and assume that is always up
426 * If that wasn't the case, we'd have to suspend once
427 * our i2c device is suspended, and then take note of that! */
428static int tas_suspend(struct tas *tas)
429{
430 tas->acr |= TAS_ACR_ANALOG_PDOWN;
431 tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
432 return 0;
433}
434
435static int tas_resume(struct tas *tas)
436{
437 /* reset codec */
438 tas_reset_init(tas);
439 tas_set_volume(tas);
440 tas_set_mixer(tas);
441 return 0;
442}
443
444#ifdef CONFIG_PM
445static int _tas_suspend(struct codec_info_item *cii, pm_message_t state)
446{
447 return tas_suspend(cii->codec_data);
448}
449
450static int _tas_resume(struct codec_info_item *cii)
451{
452 return tas_resume(cii->codec_data);
453}
454#endif
455
456static struct codec_info tas_codec_info = {
457 .transfers = tas_transfers,
458 /* in theory, we can drive it at 512 too...
459 * but so far the framework doesn't allow
460 * for that and I don't see much point in it. */
461 .sysclock_factor = 256,
462 /* same here, could be 32 for just one 16 bit format */
463 .bus_factor = 64,
464 .owner = THIS_MODULE,
465 .usable = tas_usable,
466#ifdef CONFIG_PM
467 .suspend = _tas_suspend,
468 .resume = _tas_resume,
469#endif
470};
471
472static int tas_init_codec(struct aoa_codec *codec)
473{
474 struct tas *tas = codec_to_tas(codec);
475 int err;
476
477 if (!tas->codec.gpio || !tas->codec.gpio->methods) {
478 printk(KERN_ERR PFX "gpios not assigned!!\n");
479 return -EINVAL;
480 }
481
482 if (tas_reset_init(tas)) {
483 printk(KERN_ERR PFX "tas failed to initialise\n");
484 return -ENXIO;
485 }
486
487 if (tas->codec.soundbus_dev->attach_codec(tas->codec.soundbus_dev,
488 aoa_get_card(),
489 &tas_codec_info, tas)) {
490 printk(KERN_ERR PFX "error attaching tas to soundbus\n");
491 return -ENODEV;
492 }
493
494 if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, tas, &ops)) {
495 printk(KERN_ERR PFX "failed to create tas snd device!\n");
496 return -ENODEV;
497 }
498 err = aoa_snd_ctl_add(snd_ctl_new1(&volume_control, tas));
499 if (err)
500 goto error;
501
502 err = aoa_snd_ctl_add(snd_ctl_new1(&mute_control, tas));
503 if (err)
504 goto error;
505
506 err = aoa_snd_ctl_add(snd_ctl_new1(&pcm1_control, tas));
507 if (err)
508 goto error;
509
510 err = aoa_snd_ctl_add(snd_ctl_new1(&monitor_control, tas));
511 if (err)
512 goto error;
513
514 err = aoa_snd_ctl_add(snd_ctl_new1(&capture_source_control, tas));
515 if (err)
516 goto error;
517
518 return 0;
519 error:
520 tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas);
521 snd_device_free(aoa_get_card(), tas);
522 return err;
523}
524
525static void tas_exit_codec(struct aoa_codec *codec)
526{
527 struct tas *tas = codec_to_tas(codec);
528
529 if (!tas->codec.soundbus_dev)
530 return;
531 tas->codec.soundbus_dev->detach_codec(tas->codec.soundbus_dev, tas);
532}
533
534
535static struct i2c_driver tas_driver;
536
537static int tas_create(struct i2c_adapter *adapter,
538 struct device_node *node,
539 int addr)
540{
541 struct tas *tas;
542
543 tas = kzalloc(sizeof(struct tas), GFP_KERNEL);
544
545 if (!tas)
546 return -ENOMEM;
547
548 tas->i2c.driver = &tas_driver;
549 tas->i2c.adapter = adapter;
550 tas->i2c.addr = addr;
551 strlcpy(tas->i2c.name, "tas audio codec", I2C_NAME_SIZE-1);
552
553 if (i2c_attach_client(&tas->i2c)) {
554 printk(KERN_ERR PFX "failed to attach to i2c\n");
555 goto fail;
556 }
557
558 strlcpy(tas->codec.name, "tas", MAX_CODEC_NAME_LEN-1);
559 tas->codec.owner = THIS_MODULE;
560 tas->codec.init = tas_init_codec;
561 tas->codec.exit = tas_exit_codec;
562 tas->codec.node = of_node_get(node);
563
564 if (aoa_codec_register(&tas->codec)) {
565 goto detach;
566 }
567 printk(KERN_DEBUG "snd-aoa-codec-tas: created and attached tas instance\n");
568 return 0;
569 detach:
570 i2c_detach_client(&tas->i2c);
571 fail:
572 kfree(tas);
573 return -EINVAL;
574}
575
576static int tas_i2c_attach(struct i2c_adapter *adapter)
577{
578 struct device_node *busnode, *dev = NULL;
579 struct pmac_i2c_bus *bus;
580
581 bus = pmac_i2c_adapter_to_bus(adapter);
582 if (bus == NULL)
583 return -ENODEV;
584 busnode = pmac_i2c_get_bus_node(bus);
585
586 while ((dev = of_get_next_child(busnode, dev)) != NULL) {
587 if (device_is_compatible(dev, "tas3004")) {
588 u32 *addr;
589 printk(KERN_DEBUG PFX "found tas3004\n");
590 addr = (u32 *) get_property(dev, "reg", NULL);
591 if (!addr)
592 continue;
593 return tas_create(adapter, dev, ((*addr) >> 1) & 0x7f);
594 }
595 /* older machines have no 'codec' node with a 'compatible'
596 * property that says 'tas3004', they just have a 'deq'
597 * node without any such property... */
598 if (strcmp(dev->name, "deq") == 0) {
599 u32 *_addr, addr;
600 printk(KERN_DEBUG PFX "found 'deq' node\n");
601 _addr = (u32 *) get_property(dev, "i2c-address", NULL);
602 if (!_addr)
603 continue;
604 addr = ((*_addr) >> 1) & 0x7f;
605 /* now, if the address doesn't match any of the two
606 * that a tas3004 can have, we cannot handle this.
607 * I doubt it ever happens but hey. */
608 if (addr != 0x34 && addr != 0x35)
609 continue;
610 return tas_create(adapter, dev, addr);
611 }
612 }
613 return -ENODEV;
614}
615
616static int tas_i2c_detach(struct i2c_client *client)
617{
618 struct tas *tas = container_of(client, struct tas, i2c);
619 int err;
620 u8 tmp = TAS_ACR_ANALOG_PDOWN;
621
622 if ((err = i2c_detach_client(client)))
623 return err;
624 aoa_codec_unregister(&tas->codec);
625 of_node_put(tas->codec.node);
626
627 /* power down codec chip */
628 tas_write_reg(tas, TAS_REG_ACR, 1, &tmp);
629
630 kfree(tas);
631 return 0;
632}
633
634static struct i2c_driver tas_driver = {
635 .driver = {
636 .name = "aoa_codec_tas",
637 .owner = THIS_MODULE,
638 },
639 .attach_adapter = tas_i2c_attach,
640 .detach_client = tas_i2c_detach,
641};
642
643static int __init tas_init(void)
644{
645 return i2c_add_driver(&tas_driver);
646}
647
648static void __exit tas_exit(void)
649{
650 i2c_del_driver(&tas_driver);
651}
652
653module_init(tas_init);
654module_exit(tas_exit);
diff --git a/sound/aoa/codecs/snd-aoa-codec-tas.h b/sound/aoa/codecs/snd-aoa-codec-tas.h
new file mode 100644
index 000000000000..daf81f45d83a
--- /dev/null
+++ b/sound/aoa/codecs/snd-aoa-codec-tas.h
@@ -0,0 +1,47 @@
1/*
2 * Apple Onboard Audio driver for tas codec (header)
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8#ifndef __SND_AOA_CODECTASH
9#define __SND_AOA_CODECTASH
10
11#define TAS_REG_MCS 0x01 /* main control */
12# define TAS_MCS_FASTLOAD (1<<7)
13# define TAS_MCS_SCLK64 (1<<6)
14# define TAS_MCS_SPORT_MODE_MASK (3<<4)
15# define TAS_MCS_SPORT_MODE_I2S (2<<4)
16# define TAS_MCS_SPORT_MODE_RJ (1<<4)
17# define TAS_MCS_SPORT_MODE_LJ (0<<4)
18# define TAS_MCS_SPORT_WL_MASK (3<<0)
19# define TAS_MCS_SPORT_WL_16BIT (0<<0)
20# define TAS_MCS_SPORT_WL_18BIT (1<<0)
21# define TAS_MCS_SPORT_WL_20BIT (2<<0)
22# define TAS_MCS_SPORT_WL_24BIT (3<<0)
23
24#define TAS_REG_DRC 0x02
25#define TAS_REG_VOL 0x04
26#define TAS_REG_TREBLE 0x05
27#define TAS_REG_BASS 0x06
28#define TAS_REG_LMIX 0x07
29#define TAS_REG_RMIX 0x08
30
31#define TAS_REG_ACR 0x40 /* analog control */
32# define TAS_ACR_B_MONAUREAL (1<<7)
33# define TAS_ACR_B_MON_SEL_RIGHT (1<<6)
34# define TAS_ACR_DEEMPH_MASK (3<<2)
35# define TAS_ACR_DEEMPH_OFF (0<<2)
36# define TAS_ACR_DEEMPH_48KHz (1<<2)
37# define TAS_ACR_DEEMPH_44KHz (2<<2)
38# define TAS_ACR_INPUT_B (1<<1)
39# define TAS_ACR_ANALOG_PDOWN (1<<0)
40
41#define TAS_REG_MCS2 0x43 /* main control 2 */
42# define TAS_MCS2_ALLPASS (1<<1)
43
44#define TAS_REG_LEFT_BIQUAD6 0x10
45#define TAS_REG_RIGHT_BIQUAD6 0x19
46
47#endif /* __SND_AOA_CODECTASH */
diff --git a/sound/aoa/codecs/snd-aoa-codec-toonie.c b/sound/aoa/codecs/snd-aoa-codec-toonie.c
new file mode 100644
index 000000000000..bcc555647e79
--- /dev/null
+++ b/sound/aoa/codecs/snd-aoa-codec-toonie.c
@@ -0,0 +1,141 @@
1/*
2 * Apple Onboard Audio driver for Toonie codec
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 *
8 *
9 * This is a driver for the toonie codec chip. This chip is present
10 * on the Mac Mini and is nothing but a DAC.
11 */
12#include <linux/delay.h>
13#include <linux/module.h>
14MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
15MODULE_LICENSE("GPL");
16MODULE_DESCRIPTION("toonie codec driver for snd-aoa");
17
18#include "../aoa.h"
19#include "../soundbus/soundbus.h"
20
21
22#define PFX "snd-aoa-codec-toonie: "
23
24struct toonie {
25 struct aoa_codec codec;
26};
27#define codec_to_toonie(c) container_of(c, struct toonie, codec)
28
29static int toonie_dev_register(struct snd_device *dev)
30{
31 return 0;
32}
33
34static struct snd_device_ops ops = {
35 .dev_register = toonie_dev_register,
36};
37
38static struct transfer_info toonie_transfers[] = {
39 /* This thing *only* has analog output,
40 * the rates are taken from Info.plist
41 * from Darwin. */
42 {
43 .formats = SNDRV_PCM_FMTBIT_S16_BE |
44 SNDRV_PCM_FMTBIT_S24_BE,
45 .rates = SNDRV_PCM_RATE_32000 |
46 SNDRV_PCM_RATE_44100 |
47 SNDRV_PCM_RATE_48000 |
48 SNDRV_PCM_RATE_88200 |
49 SNDRV_PCM_RATE_96000,
50 },
51 {}
52};
53
54#ifdef CONFIG_PM
55static int toonie_suspend(struct codec_info_item *cii, pm_message_t state)
56{
57 /* can we turn it off somehow? */
58 return 0;
59}
60
61static int toonie_resume(struct codec_info_item *cii)
62{
63 return 0;
64}
65#endif /* CONFIG_PM */
66
67static struct codec_info toonie_codec_info = {
68 .transfers = toonie_transfers,
69 .sysclock_factor = 256,
70 .bus_factor = 64,
71 .owner = THIS_MODULE,
72#ifdef CONFIG_PM
73 .suspend = toonie_suspend,
74 .resume = toonie_resume,
75#endif
76};
77
78static int toonie_init_codec(struct aoa_codec *codec)
79{
80 struct toonie *toonie = codec_to_toonie(codec);
81
82 if (aoa_snd_device_new(SNDRV_DEV_LOWLEVEL, toonie, &ops)) {
83 printk(KERN_ERR PFX "failed to create toonie snd device!\n");
84 return -ENODEV;
85 }
86
87 /* nothing connected? what a joke! */
88 if (toonie->codec.connected != 1)
89 return -ENOTCONN;
90
91 if (toonie->codec.soundbus_dev->attach_codec(toonie->codec.soundbus_dev,
92 aoa_get_card(),
93 &toonie_codec_info, toonie)) {
94 printk(KERN_ERR PFX "error creating toonie pcm\n");
95 return -ENODEV;
96 }
97
98 return 0;
99}
100
101static void toonie_exit_codec(struct aoa_codec *codec)
102{
103 struct toonie *toonie = codec_to_toonie(codec);
104
105 if (!toonie->codec.soundbus_dev) {
106 printk(KERN_ERR PFX "toonie_exit_codec called without soundbus_dev!\n");
107 return;
108 }
109 toonie->codec.soundbus_dev->detach_codec(toonie->codec.soundbus_dev, toonie);
110}
111
112static struct toonie *toonie;
113
114static int __init toonie_init(void)
115{
116 toonie = kzalloc(sizeof(struct toonie), GFP_KERNEL);
117
118 if (!toonie)
119 return -ENOMEM;
120
121 strlcpy(toonie->codec.name, "toonie", sizeof(toonie->codec.name));
122 toonie->codec.owner = THIS_MODULE;
123 toonie->codec.init = toonie_init_codec;
124 toonie->codec.exit = toonie_exit_codec;
125
126 if (aoa_codec_register(&toonie->codec)) {
127 kfree(toonie);
128 return -EINVAL;
129 }
130
131 return 0;
132}
133
134static void __exit toonie_exit(void)
135{
136 aoa_codec_unregister(&toonie->codec);
137 kfree(toonie);
138}
139
140module_init(toonie_init);
141module_exit(toonie_exit);
diff --git a/sound/aoa/core/Makefile b/sound/aoa/core/Makefile
new file mode 100644
index 000000000000..62dc7287f663
--- /dev/null
+++ b/sound/aoa/core/Makefile
@@ -0,0 +1,5 @@
1obj-$(CONFIG_SND_AOA) += snd-aoa.o
2snd-aoa-objs := snd-aoa-core.o \
3 snd-aoa-alsa.o \
4 snd-aoa-gpio-pmf.o \
5 snd-aoa-gpio-feature.o
diff --git a/sound/aoa/core/snd-aoa-alsa.c b/sound/aoa/core/snd-aoa-alsa.c
new file mode 100644
index 000000000000..b42fdea77ed0
--- /dev/null
+++ b/sound/aoa/core/snd-aoa-alsa.c
@@ -0,0 +1,98 @@
1/*
2 * Apple Onboard Audio Alsa helpers
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8#include <linux/module.h>
9#include "snd-aoa-alsa.h"
10
11static int index = -1;
12module_param(index, int, 0444);
13MODULE_PARM_DESC(index, "index for AOA sound card.");
14
15static struct aoa_card *aoa_card;
16
17int aoa_alsa_init(char *name, struct module *mod)
18{
19 struct snd_card *alsa_card;
20 int err;
21
22 if (aoa_card)
23 /* cannot be EEXIST due to usage in aoa_fabric_register */
24 return -EBUSY;
25
26 alsa_card = snd_card_new(index, name, mod, sizeof(struct aoa_card));
27 if (!alsa_card)
28 return -ENOMEM;
29 aoa_card = alsa_card->private_data;
30 aoa_card->alsa_card = alsa_card;
31 strlcpy(alsa_card->driver, "AppleOnbdAudio", sizeof(alsa_card->driver));
32 strlcpy(alsa_card->shortname, name, sizeof(alsa_card->shortname));
33 strlcpy(alsa_card->longname, name, sizeof(alsa_card->longname));
34 strlcpy(alsa_card->mixername, name, sizeof(alsa_card->mixername));
35 err = snd_card_register(aoa_card->alsa_card);
36 if (err < 0) {
37 printk(KERN_ERR "snd-aoa: couldn't register alsa card\n");
38 snd_card_free(aoa_card->alsa_card);
39 aoa_card = NULL;
40 return err;
41 }
42 return 0;
43}
44
45struct snd_card *aoa_get_card(void)
46{
47 if (aoa_card)
48 return aoa_card->alsa_card;
49 return NULL;
50}
51EXPORT_SYMBOL_GPL(aoa_get_card);
52
53void aoa_alsa_cleanup(void)
54{
55 if (aoa_card) {
56 snd_card_free(aoa_card->alsa_card);
57 aoa_card = NULL;
58 }
59}
60
61int aoa_snd_device_new(snd_device_type_t type,
62 void * device_data, struct snd_device_ops * ops)
63{
64 struct snd_card *card = aoa_get_card();
65 int err;
66
67 if (!card) return -ENOMEM;
68
69 err = snd_device_new(card, type, device_data, ops);
70 if (err) {
71 printk(KERN_ERR "snd-aoa: failed to create snd device (%d)\n", err);
72 return err;
73 }
74 err = snd_device_register(card, device_data);
75 if (err) {
76 printk(KERN_ERR "snd-aoa: failed to register "
77 "snd device (%d)\n", err);
78 printk(KERN_ERR "snd-aoa: have you forgotten the "
79 "dev_register callback?\n");
80 snd_device_free(card, device_data);
81 }
82 return err;
83}
84EXPORT_SYMBOL_GPL(aoa_snd_device_new);
85
86int aoa_snd_ctl_add(struct snd_kcontrol* control)
87{
88 int err;
89
90 if (!aoa_card) return -ENODEV;
91
92 err = snd_ctl_add(aoa_card->alsa_card, control);
93 if (err)
94 printk(KERN_ERR "snd-aoa: failed to add alsa control (%d)\n",
95 err);
96 return err;
97}
98EXPORT_SYMBOL_GPL(aoa_snd_ctl_add);
diff --git a/sound/aoa/core/snd-aoa-alsa.h b/sound/aoa/core/snd-aoa-alsa.h
new file mode 100644
index 000000000000..660d2f1793bb
--- /dev/null
+++ b/sound/aoa/core/snd-aoa-alsa.h
@@ -0,0 +1,16 @@
1/*
2 * Apple Onboard Audio Alsa private helpers
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8
9#ifndef __SND_AOA_ALSA_H
10#define __SND_AOA_ALSA_H
11#include "../aoa.h"
12
13extern int aoa_alsa_init(char *name, struct module *mod);
14extern void aoa_alsa_cleanup(void);
15
16#endif /* __SND_AOA_ALSA_H */
diff --git a/sound/aoa/core/snd-aoa-core.c b/sound/aoa/core/snd-aoa-core.c
new file mode 100644
index 000000000000..ecd2d8263f2d
--- /dev/null
+++ b/sound/aoa/core/snd-aoa-core.c
@@ -0,0 +1,162 @@
1/*
2 * Apple Onboard Audio driver core
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8
9#include <linux/init.h>
10#include <linux/module.h>
11#include <linux/list.h>
12#include "../aoa.h"
13#include "snd-aoa-alsa.h"
14
15MODULE_DESCRIPTION("Apple Onboard Audio Sound Driver");
16MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
17MODULE_LICENSE("GPL");
18
19/* We allow only one fabric. This simplifies things,
20 * and more don't really make that much sense */
21static struct aoa_fabric *fabric;
22static LIST_HEAD(codec_list);
23
24static int attach_codec_to_fabric(struct aoa_codec *c)
25{
26 int err;
27
28 if (!try_module_get(c->owner))
29 return -EBUSY;
30 /* found_codec has to be assigned */
31 err = -ENOENT;
32 if (fabric->found_codec)
33 err = fabric->found_codec(c);
34 if (err) {
35 module_put(c->owner);
36 printk(KERN_ERR "snd-aoa: fabric didn't like codec %s\n",
37 c->name);
38 return err;
39 }
40 c->fabric = fabric;
41
42 err = 0;
43 if (c->init)
44 err = c->init(c);
45 if (err) {
46 printk(KERN_ERR "snd-aoa: codec %s didn't init\n", c->name);
47 c->fabric = NULL;
48 if (fabric->remove_codec)
49 fabric->remove_codec(c);
50 module_put(c->owner);
51 return err;
52 }
53 if (fabric->attached_codec)
54 fabric->attached_codec(c);
55 return 0;
56}
57
58int aoa_codec_register(struct aoa_codec *codec)
59{
60 int err = 0;
61
62 /* if there's a fabric already, we can tell if we
63 * will want to have this codec, so propagate error
64 * through. Otherwise, this will happen later... */
65 if (fabric)
66 err = attach_codec_to_fabric(codec);
67 if (!err)
68 list_add(&codec->list, &codec_list);
69 return err;
70}
71EXPORT_SYMBOL_GPL(aoa_codec_register);
72
73void aoa_codec_unregister(struct aoa_codec *codec)
74{
75 list_del(&codec->list);
76 if (codec->fabric && codec->exit)
77 codec->exit(codec);
78 if (fabric && fabric->remove_codec)
79 fabric->remove_codec(codec);
80 codec->fabric = NULL;
81 module_put(codec->owner);
82}
83EXPORT_SYMBOL_GPL(aoa_codec_unregister);
84
85int aoa_fabric_register(struct aoa_fabric *new_fabric)
86{
87 struct aoa_codec *c;
88 int err;
89
90 /* allow querying for presence of fabric
91 * (i.e. do this test first!) */
92 if (new_fabric == fabric) {
93 err = -EALREADY;
94 goto attach;
95 }
96 if (fabric)
97 return -EEXIST;
98 if (!new_fabric)
99 return -EINVAL;
100
101 err = aoa_alsa_init(new_fabric->name, new_fabric->owner);
102 if (err)
103 return err;
104
105 fabric = new_fabric;
106
107 attach:
108 list_for_each_entry(c, &codec_list, list) {
109 if (c->fabric != fabric)
110 attach_codec_to_fabric(c);
111 }
112 return err;
113}
114EXPORT_SYMBOL_GPL(aoa_fabric_register);
115
116void aoa_fabric_unregister(struct aoa_fabric *old_fabric)
117{
118 struct aoa_codec *c;
119
120 if (fabric != old_fabric)
121 return;
122
123 list_for_each_entry(c, &codec_list, list) {
124 if (c->fabric)
125 aoa_fabric_unlink_codec(c);
126 }
127
128 aoa_alsa_cleanup();
129
130 fabric = NULL;
131}
132EXPORT_SYMBOL_GPL(aoa_fabric_unregister);
133
134void aoa_fabric_unlink_codec(struct aoa_codec *codec)
135{
136 if (!codec->fabric) {
137 printk(KERN_ERR "snd-aoa: fabric unassigned "
138 "in aoa_fabric_unlink_codec\n");
139 dump_stack();
140 return;
141 }
142 if (codec->exit)
143 codec->exit(codec);
144 if (codec->fabric->remove_codec)
145 codec->fabric->remove_codec(codec);
146 codec->fabric = NULL;
147 module_put(codec->owner);
148}
149EXPORT_SYMBOL_GPL(aoa_fabric_unlink_codec);
150
151static int __init aoa_init(void)
152{
153 return 0;
154}
155
156static void __exit aoa_exit(void)
157{
158 aoa_alsa_cleanup();
159}
160
161module_init(aoa_init);
162module_exit(aoa_exit);
diff --git a/sound/aoa/core/snd-aoa-gpio-feature.c b/sound/aoa/core/snd-aoa-gpio-feature.c
new file mode 100644
index 000000000000..2c6eb7784cc9
--- /dev/null
+++ b/sound/aoa/core/snd-aoa-gpio-feature.c
@@ -0,0 +1,399 @@
1/*
2 * Apple Onboard Audio feature call GPIO control
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 *
8 * This file contains the GPIO control routines for
9 * direct (through feature calls) access to the GPIO
10 * registers.
11 */
12
13#include <asm/pmac_feature.h>
14#include <linux/interrupt.h>
15#include "../aoa.h"
16
17/* TODO: these are 20 global variables
18 * that aren't used on most machines...
19 * Move them into a dynamically allocated
20 * structure and use that.
21 */
22
23/* these are the GPIO numbers (register addresses as offsets into
24 * the GPIO space) */
25static int headphone_mute_gpio;
26static int amp_mute_gpio;
27static int lineout_mute_gpio;
28static int hw_reset_gpio;
29static int lineout_detect_gpio;
30static int headphone_detect_gpio;
31static int linein_detect_gpio;
32
33/* see the SWITCH_GPIO macro */
34static int headphone_mute_gpio_activestate;
35static int amp_mute_gpio_activestate;
36static int lineout_mute_gpio_activestate;
37static int hw_reset_gpio_activestate;
38static int lineout_detect_gpio_activestate;
39static int headphone_detect_gpio_activestate;
40static int linein_detect_gpio_activestate;
41
42/* node pointers that we save when getting the GPIO number
43 * to get the interrupt later */
44static struct device_node *lineout_detect_node;
45static struct device_node *linein_detect_node;
46static struct device_node *headphone_detect_node;
47
48static int lineout_detect_irq;
49static int linein_detect_irq;
50static int headphone_detect_irq;
51
52static struct device_node *get_gpio(char *name,
53 char *altname,
54 int *gpioptr,
55 int *gpioactiveptr)
56{
57 struct device_node *np, *gpio;
58 u32 *reg;
59 char *audio_gpio;
60
61 *gpioptr = -1;
62
63 /* check if we can get it the easy way ... */
64 np = of_find_node_by_name(NULL, name);
65 if (!np) {
66 /* some machines have only gpioX/extint-gpioX nodes,
67 * and an audio-gpio property saying what it is ...
68 * So what we have to do is enumerate all children
69 * of the gpio node and check them all. */
70 gpio = of_find_node_by_name(NULL, "gpio");
71 if (!gpio)
72 return NULL;
73 while ((np = of_get_next_child(gpio, np))) {
74 audio_gpio = get_property(np, "audio-gpio", NULL);
75 if (!audio_gpio)
76 continue;
77 if (strcmp(audio_gpio, name) == 0)
78 break;
79 if (altname && (strcmp(audio_gpio, altname) == 0))
80 break;
81 }
82 /* still not found, assume not there */
83 if (!np)
84 return NULL;
85 }
86
87 reg = (u32 *)get_property(np, "reg", NULL);
88 if (!reg)
89 return NULL;
90
91 *gpioptr = *reg;
92
93 /* this is a hack, usually the GPIOs 'reg' property
94 * should have the offset based from the GPIO space
95 * which is at 0x50, but apparently not always... */
96 if (*gpioptr < 0x50)
97 *gpioptr += 0x50;
98
99 reg = (u32 *)get_property(np, "audio-gpio-active-state", NULL);
100 if (!reg)
101 /* Apple seems to default to 1, but
102 * that doesn't seem right at least on most
103 * machines. So until proven that the opposite
104 * is necessary, we default to 0
105 * (which, incidentally, snd-powermac also does...) */
106 *gpioactiveptr = 0;
107 else
108 *gpioactiveptr = *reg;
109
110 return np;
111}
112
113static void get_irq(struct device_node * np, int *irqptr)
114{
115 *irqptr = -1;
116 if (!np)
117 return;
118 if (np->n_intrs != 1)
119 return;
120 *irqptr = np->intrs[0].line;
121}
122
123/* 0x4 is outenable, 0x1 is out, thus 4 or 5 */
124#define SWITCH_GPIO(name, v, on) \
125 (((v)&~1) | ((on)? \
126 (name##_gpio_activestate==0?4:5): \
127 (name##_gpio_activestate==0?5:4)))
128
129#define FTR_GPIO(name, bit) \
130static void ftr_gpio_set_##name(struct gpio_runtime *rt, int on)\
131{ \
132 int v; \
133 \
134 if (unlikely(!rt)) return; \
135 \
136 if (name##_mute_gpio < 0) \
137 return; \
138 \
139 v = pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, \
140 name##_mute_gpio, \
141 0); \
142 \
143 /* muted = !on... */ \
144 v = SWITCH_GPIO(name##_mute, v, !on); \
145 \
146 pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, \
147 name##_mute_gpio, v); \
148 \
149 rt->implementation_private &= ~(1<<bit); \
150 rt->implementation_private |= (!!on << bit); \
151} \
152static int ftr_gpio_get_##name(struct gpio_runtime *rt) \
153{ \
154 if (unlikely(!rt)) return 0; \
155 return (rt->implementation_private>>bit)&1; \
156}
157
158FTR_GPIO(headphone, 0);
159FTR_GPIO(amp, 1);
160FTR_GPIO(lineout, 2);
161
162static void ftr_gpio_set_hw_reset(struct gpio_runtime *rt, int on)
163{
164 int v;
165
166 if (unlikely(!rt)) return;
167 if (hw_reset_gpio < 0)
168 return;
169
170 v = pmac_call_feature(PMAC_FTR_READ_GPIO, NULL,
171 hw_reset_gpio, 0);
172 v = SWITCH_GPIO(hw_reset, v, on);
173 pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL,
174 hw_reset_gpio, v);
175}
176
177static void ftr_gpio_all_amps_off(struct gpio_runtime *rt)
178{
179 int saved;
180
181 if (unlikely(!rt)) return;
182 saved = rt->implementation_private;
183 ftr_gpio_set_headphone(rt, 0);
184 ftr_gpio_set_amp(rt, 0);
185 ftr_gpio_set_lineout(rt, 0);
186 rt->implementation_private = saved;
187}
188
189static void ftr_gpio_all_amps_restore(struct gpio_runtime *rt)
190{
191 int s;
192
193 if (unlikely(!rt)) return;
194 s = rt->implementation_private;
195 ftr_gpio_set_headphone(rt, (s>>0)&1);
196 ftr_gpio_set_amp(rt, (s>>1)&1);
197 ftr_gpio_set_lineout(rt, (s>>2)&1);
198}
199
200static void ftr_handle_notify(void *data)
201{
202 struct gpio_notification *notif = data;
203
204 mutex_lock(&notif->mutex);
205 if (notif->notify)
206 notif->notify(notif->data);
207 mutex_unlock(&notif->mutex);
208}
209
210static void ftr_gpio_init(struct gpio_runtime *rt)
211{
212 get_gpio("headphone-mute", NULL,
213 &headphone_mute_gpio,
214 &headphone_mute_gpio_activestate);
215 get_gpio("amp-mute", NULL,
216 &amp_mute_gpio,
217 &amp_mute_gpio_activestate);
218 get_gpio("lineout-mute", NULL,
219 &lineout_mute_gpio,
220 &lineout_mute_gpio_activestate);
221 get_gpio("hw-reset", "audio-hw-reset",
222 &hw_reset_gpio,
223 &hw_reset_gpio_activestate);
224
225 headphone_detect_node = get_gpio("headphone-detect", NULL,
226 &headphone_detect_gpio,
227 &headphone_detect_gpio_activestate);
228 /* go Apple, and thanks for giving these different names
229 * across the board... */
230 lineout_detect_node = get_gpio("lineout-detect", "line-output-detect",
231 &lineout_detect_gpio,
232 &lineout_detect_gpio_activestate);
233 linein_detect_node = get_gpio("linein-detect", "line-input-detect",
234 &linein_detect_gpio,
235 &linein_detect_gpio_activestate);
236
237 get_irq(headphone_detect_node, &headphone_detect_irq);
238 get_irq(lineout_detect_node, &lineout_detect_irq);
239 get_irq(linein_detect_node, &linein_detect_irq);
240
241 ftr_gpio_all_amps_off(rt);
242 rt->implementation_private = 0;
243 INIT_WORK(&rt->headphone_notify.work, ftr_handle_notify,
244 &rt->headphone_notify);
245 INIT_WORK(&rt->line_in_notify.work, ftr_handle_notify,
246 &rt->line_in_notify);
247 INIT_WORK(&rt->line_out_notify.work, ftr_handle_notify,
248 &rt->line_out_notify);
249 mutex_init(&rt->headphone_notify.mutex);
250 mutex_init(&rt->line_in_notify.mutex);
251 mutex_init(&rt->line_out_notify.mutex);
252}
253
254static void ftr_gpio_exit(struct gpio_runtime *rt)
255{
256 ftr_gpio_all_amps_off(rt);
257 rt->implementation_private = 0;
258 if (rt->headphone_notify.notify)
259 free_irq(headphone_detect_irq, &rt->headphone_notify);
260 if (rt->line_in_notify.gpio_private)
261 free_irq(linein_detect_irq, &rt->line_in_notify);
262 if (rt->line_out_notify.gpio_private)
263 free_irq(lineout_detect_irq, &rt->line_out_notify);
264 cancel_delayed_work(&rt->headphone_notify.work);
265 cancel_delayed_work(&rt->line_in_notify.work);
266 cancel_delayed_work(&rt->line_out_notify.work);
267 flush_scheduled_work();
268 mutex_destroy(&rt->headphone_notify.mutex);
269 mutex_destroy(&rt->line_in_notify.mutex);
270 mutex_destroy(&rt->line_out_notify.mutex);
271}
272
273static irqreturn_t ftr_handle_notify_irq(int xx,
274 void *data,
275 struct pt_regs *regs)
276{
277 struct gpio_notification *notif = data;
278
279 schedule_work(&notif->work);
280
281 return IRQ_HANDLED;
282}
283
284static int ftr_set_notify(struct gpio_runtime *rt,
285 enum notify_type type,
286 notify_func_t notify,
287 void *data)
288{
289 struct gpio_notification *notif;
290 notify_func_t old;
291 int irq;
292 char *name;
293 int err = -EBUSY;
294
295 switch (type) {
296 case AOA_NOTIFY_HEADPHONE:
297 notif = &rt->headphone_notify;
298 name = "headphone-detect";
299 irq = headphone_detect_irq;
300 break;
301 case AOA_NOTIFY_LINE_IN:
302 notif = &rt->line_in_notify;
303 name = "linein-detect";
304 irq = linein_detect_irq;
305 break;
306 case AOA_NOTIFY_LINE_OUT:
307 notif = &rt->line_out_notify;
308 name = "lineout-detect";
309 irq = lineout_detect_irq;
310 break;
311 default:
312 return -EINVAL;
313 }
314
315 if (irq == -1)
316 return -ENODEV;
317
318 mutex_lock(&notif->mutex);
319
320 old = notif->notify;
321
322 if (!old && !notify) {
323 err = 0;
324 goto out_unlock;
325 }
326
327 if (old && notify) {
328 if (old == notify && notif->data == data)
329 err = 0;
330 goto out_unlock;
331 }
332
333 if (old && !notify)
334 free_irq(irq, notif);
335
336 if (!old && notify) {
337 err = request_irq(irq, ftr_handle_notify_irq, 0, name, notif);
338 if (err)
339 goto out_unlock;
340 }
341
342 notif->notify = notify;
343 notif->data = data;
344
345 err = 0;
346 out_unlock:
347 mutex_unlock(&notif->mutex);
348 return err;
349}
350
351static int ftr_get_detect(struct gpio_runtime *rt,
352 enum notify_type type)
353{
354 int gpio, ret, active;
355
356 switch (type) {
357 case AOA_NOTIFY_HEADPHONE:
358 gpio = headphone_detect_gpio;
359 active = headphone_detect_gpio_activestate;
360 break;
361 case AOA_NOTIFY_LINE_IN:
362 gpio = linein_detect_gpio;
363 active = linein_detect_gpio_activestate;
364 break;
365 case AOA_NOTIFY_LINE_OUT:
366 gpio = lineout_detect_gpio;
367 active = lineout_detect_gpio_activestate;
368 break;
369 default:
370 return -EINVAL;
371 }
372
373 if (gpio == -1)
374 return -ENODEV;
375
376 ret = pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, gpio, 0);
377 if (ret < 0)
378 return ret;
379 return ((ret >> 1) & 1) == active;
380}
381
382static struct gpio_methods methods = {
383 .init = ftr_gpio_init,
384 .exit = ftr_gpio_exit,
385 .all_amps_off = ftr_gpio_all_amps_off,
386 .all_amps_restore = ftr_gpio_all_amps_restore,
387 .set_headphone = ftr_gpio_set_headphone,
388 .set_speakers = ftr_gpio_set_amp,
389 .set_lineout = ftr_gpio_set_lineout,
390 .set_hw_reset = ftr_gpio_set_hw_reset,
391 .get_headphone = ftr_gpio_get_headphone,
392 .get_speakers = ftr_gpio_get_amp,
393 .get_lineout = ftr_gpio_get_lineout,
394 .set_notify = ftr_set_notify,
395 .get_detect = ftr_get_detect,
396};
397
398struct gpio_methods *ftr_gpio_methods = &methods;
399EXPORT_SYMBOL_GPL(ftr_gpio_methods);
diff --git a/sound/aoa/core/snd-aoa-gpio-pmf.c b/sound/aoa/core/snd-aoa-gpio-pmf.c
new file mode 100644
index 000000000000..0e9b9bb2a6de
--- /dev/null
+++ b/sound/aoa/core/snd-aoa-gpio-pmf.c
@@ -0,0 +1,246 @@
1/*
2 * Apple Onboard Audio pmf GPIOs
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8
9#include <asm/pmac_feature.h>
10#include <asm/pmac_pfunc.h>
11#include "../aoa.h"
12
13#define PMF_GPIO(name, bit) \
14static void pmf_gpio_set_##name(struct gpio_runtime *rt, int on)\
15{ \
16 struct pmf_args args = { .count = 1, .u[0].v = !on }; \
17 \
18 if (unlikely(!rt)) return; \
19 pmf_call_function(rt->node, #name "-mute", &args); \
20 rt->implementation_private &= ~(1<<bit); \
21 rt->implementation_private |= (!!on << bit); \
22} \
23static int pmf_gpio_get_##name(struct gpio_runtime *rt) \
24{ \
25 if (unlikely(!rt)) return 0; \
26 return (rt->implementation_private>>bit)&1; \
27}
28
29PMF_GPIO(headphone, 0);
30PMF_GPIO(amp, 1);
31PMF_GPIO(lineout, 2);
32
33static void pmf_gpio_set_hw_reset(struct gpio_runtime *rt, int on)
34{
35 struct pmf_args args = { .count = 1, .u[0].v = !!on };
36
37 if (unlikely(!rt)) return;
38 pmf_call_function(rt->node, "hw-reset", &args);
39}
40
41static void pmf_gpio_all_amps_off(struct gpio_runtime *rt)
42{
43 int saved;
44
45 if (unlikely(!rt)) return;
46 saved = rt->implementation_private;
47 pmf_gpio_set_headphone(rt, 0);
48 pmf_gpio_set_amp(rt, 0);
49 pmf_gpio_set_lineout(rt, 0);
50 rt->implementation_private = saved;
51}
52
53static void pmf_gpio_all_amps_restore(struct gpio_runtime *rt)
54{
55 int s;
56
57 if (unlikely(!rt)) return;
58 s = rt->implementation_private;
59 pmf_gpio_set_headphone(rt, (s>>0)&1);
60 pmf_gpio_set_amp(rt, (s>>1)&1);
61 pmf_gpio_set_lineout(rt, (s>>2)&1);
62}
63
64static void pmf_handle_notify(void *data)
65{
66 struct gpio_notification *notif = data;
67
68 mutex_lock(&notif->mutex);
69 if (notif->notify)
70 notif->notify(notif->data);
71 mutex_unlock(&notif->mutex);
72}
73
74static void pmf_gpio_init(struct gpio_runtime *rt)
75{
76 pmf_gpio_all_amps_off(rt);
77 rt->implementation_private = 0;
78 INIT_WORK(&rt->headphone_notify.work, pmf_handle_notify,
79 &rt->headphone_notify);
80 INIT_WORK(&rt->line_in_notify.work, pmf_handle_notify,
81 &rt->line_in_notify);
82 INIT_WORK(&rt->line_out_notify.work, pmf_handle_notify,
83 &rt->line_out_notify);
84 mutex_init(&rt->headphone_notify.mutex);
85 mutex_init(&rt->line_in_notify.mutex);
86 mutex_init(&rt->line_out_notify.mutex);
87}
88
89static void pmf_gpio_exit(struct gpio_runtime *rt)
90{
91 pmf_gpio_all_amps_off(rt);
92 rt->implementation_private = 0;
93
94 if (rt->headphone_notify.gpio_private)
95 pmf_unregister_irq_client(rt->headphone_notify.gpio_private);
96 if (rt->line_in_notify.gpio_private)
97 pmf_unregister_irq_client(rt->line_in_notify.gpio_private);
98 if (rt->line_out_notify.gpio_private)
99 pmf_unregister_irq_client(rt->line_out_notify.gpio_private);
100
101 /* make sure no work is pending before freeing
102 * all things */
103 cancel_delayed_work(&rt->headphone_notify.work);
104 cancel_delayed_work(&rt->line_in_notify.work);
105 cancel_delayed_work(&rt->line_out_notify.work);
106 flush_scheduled_work();
107
108 mutex_destroy(&rt->headphone_notify.mutex);
109 mutex_destroy(&rt->line_in_notify.mutex);
110 mutex_destroy(&rt->line_out_notify.mutex);
111
112 if (rt->headphone_notify.gpio_private)
113 kfree(rt->headphone_notify.gpio_private);
114 if (rt->line_in_notify.gpio_private)
115 kfree(rt->line_in_notify.gpio_private);
116 if (rt->line_out_notify.gpio_private)
117 kfree(rt->line_out_notify.gpio_private);
118}
119
120static void pmf_handle_notify_irq(void *data)
121{
122 struct gpio_notification *notif = data;
123
124 schedule_work(&notif->work);
125}
126
127static int pmf_set_notify(struct gpio_runtime *rt,
128 enum notify_type type,
129 notify_func_t notify,
130 void *data)
131{
132 struct gpio_notification *notif;
133 notify_func_t old;
134 struct pmf_irq_client *irq_client;
135 char *name;
136 int err = -EBUSY;
137
138 switch (type) {
139 case AOA_NOTIFY_HEADPHONE:
140 notif = &rt->headphone_notify;
141 name = "headphone-detect";
142 break;
143 case AOA_NOTIFY_LINE_IN:
144 notif = &rt->line_in_notify;
145 name = "linein-detect";
146 break;
147 case AOA_NOTIFY_LINE_OUT:
148 notif = &rt->line_out_notify;
149 name = "lineout-detect";
150 break;
151 default:
152 return -EINVAL;
153 }
154
155 mutex_lock(&notif->mutex);
156
157 old = notif->notify;
158
159 if (!old && !notify) {
160 err = 0;
161 goto out_unlock;
162 }
163
164 if (old && notify) {
165 if (old == notify && notif->data == data)
166 err = 0;
167 goto out_unlock;
168 }
169
170 if (old && !notify) {
171 irq_client = notif->gpio_private;
172 pmf_unregister_irq_client(irq_client);
173 kfree(irq_client);
174 notif->gpio_private = NULL;
175 }
176 if (!old && notify) {
177 irq_client = kzalloc(sizeof(struct pmf_irq_client),
178 GFP_KERNEL);
179 irq_client->data = notif;
180 irq_client->handler = pmf_handle_notify_irq;
181 irq_client->owner = THIS_MODULE;
182 err = pmf_register_irq_client(rt->node,
183 name,
184 irq_client);
185 if (err) {
186 printk(KERN_ERR "snd-aoa: gpio layer failed to"
187 " register %s irq (%d)\n", name, err);
188 kfree(irq_client);
189 goto out_unlock;
190 }
191 notif->gpio_private = irq_client;
192 }
193 notif->notify = notify;
194 notif->data = data;
195
196 err = 0;
197 out_unlock:
198 mutex_unlock(&notif->mutex);
199 return err;
200}
201
202static int pmf_get_detect(struct gpio_runtime *rt,
203 enum notify_type type)
204{
205 char *name;
206 int err = -EBUSY, ret;
207 struct pmf_args args = { .count = 1, .u[0].p = &ret };
208
209 switch (type) {
210 case AOA_NOTIFY_HEADPHONE:
211 name = "headphone-detect";
212 break;
213 case AOA_NOTIFY_LINE_IN:
214 name = "linein-detect";
215 break;
216 case AOA_NOTIFY_LINE_OUT:
217 name = "lineout-detect";
218 break;
219 default:
220 return -EINVAL;
221 }
222
223 err = pmf_call_function(rt->node, name, &args);
224 if (err)
225 return err;
226 return ret;
227}
228
229static struct gpio_methods methods = {
230 .init = pmf_gpio_init,
231 .exit = pmf_gpio_exit,
232 .all_amps_off = pmf_gpio_all_amps_off,
233 .all_amps_restore = pmf_gpio_all_amps_restore,
234 .set_headphone = pmf_gpio_set_headphone,
235 .set_speakers = pmf_gpio_set_amp,
236 .set_lineout = pmf_gpio_set_lineout,
237 .set_hw_reset = pmf_gpio_set_hw_reset,
238 .get_headphone = pmf_gpio_get_headphone,
239 .get_speakers = pmf_gpio_get_amp,
240 .get_lineout = pmf_gpio_get_lineout,
241 .set_notify = pmf_set_notify,
242 .get_detect = pmf_get_detect,
243};
244
245struct gpio_methods *pmf_gpio_methods = &methods;
246EXPORT_SYMBOL_GPL(pmf_gpio_methods);
diff --git a/sound/aoa/fabrics/Kconfig b/sound/aoa/fabrics/Kconfig
new file mode 100644
index 000000000000..c3bc7705c86a
--- /dev/null
+++ b/sound/aoa/fabrics/Kconfig
@@ -0,0 +1,12 @@
1config SND_AOA_FABRIC_LAYOUT
2 tristate "layout-id fabric"
3 depends SND_AOA
4 select SND_AOA_SOUNDBUS
5 select SND_AOA_SOUNDBUS_I2S
6 ---help---
7 This enables the layout-id fabric for the Apple Onboard
8 Audio driver, the module holding it all together
9 based on the device-tree's layout-id property.
10
11 If you are unsure and have a later Apple machine,
12 compile it as a module.
diff --git a/sound/aoa/fabrics/Makefile b/sound/aoa/fabrics/Makefile
new file mode 100644
index 000000000000..55fc5e7e52cf
--- /dev/null
+++ b/sound/aoa/fabrics/Makefile
@@ -0,0 +1 @@
obj-$(CONFIG_SND_AOA_FABRIC_LAYOUT) += snd-aoa-fabric-layout.o
diff --git a/sound/aoa/fabrics/snd-aoa-fabric-layout.c b/sound/aoa/fabrics/snd-aoa-fabric-layout.c
new file mode 100644
index 000000000000..04a7238e9494
--- /dev/null
+++ b/sound/aoa/fabrics/snd-aoa-fabric-layout.c
@@ -0,0 +1,1109 @@
1/*
2 * Apple Onboard Audio driver -- layout fabric
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 *
8 *
9 * This fabric module looks for sound codecs
10 * based on the layout-id property in the device tree.
11 *
12 */
13
14#include <asm/prom.h>
15#include <linux/list.h>
16#include <linux/module.h>
17#include "../aoa.h"
18#include "../soundbus/soundbus.h"
19
20MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
21MODULE_LICENSE("GPL");
22MODULE_DESCRIPTION("Layout-ID fabric for snd-aoa");
23
24#define MAX_CODECS_PER_BUS 2
25
26/* These are the connections the layout fabric
27 * knows about. It doesn't really care about the
28 * input ones, but I thought I'd separate them
29 * to give them proper names. The thing is that
30 * Apple usually will distinguish the active output
31 * by GPIOs, while the active input is set directly
32 * on the codec. Hence we here tell the codec what
33 * we think is connected. This information is hard-
34 * coded below ... */
35#define CC_SPEAKERS (1<<0)
36#define CC_HEADPHONE (1<<1)
37#define CC_LINEOUT (1<<2)
38#define CC_DIGITALOUT (1<<3)
39#define CC_LINEIN (1<<4)
40#define CC_MICROPHONE (1<<5)
41#define CC_DIGITALIN (1<<6)
42/* pretty bogus but users complain...
43 * This is a flag saying that the LINEOUT
44 * should be renamed to HEADPHONE.
45 * be careful with input detection! */
46#define CC_LINEOUT_LABELLED_HEADPHONE (1<<7)
47
48struct codec_connection {
49 /* CC_ flags from above */
50 int connected;
51 /* codec dependent bit to be set in the aoa_codec.connected field.
52 * This intentionally doesn't have any generic flags because the
53 * fabric has to know the codec anyway and all codecs might have
54 * different connectors */
55 int codec_bit;
56};
57
58struct codec_connect_info {
59 char *name;
60 struct codec_connection *connections;
61};
62
63#define LAYOUT_FLAG_COMBO_LINEOUT_SPDIF (1<<0)
64
65struct layout {
66 unsigned int layout_id;
67 struct codec_connect_info codecs[MAX_CODECS_PER_BUS];
68 int flags;
69
70 /* if busname is not assigned, we use 'Master' below,
71 * so that our layout table doesn't need to be filled
72 * too much.
73 * We only assign these two if we expect to find more
74 * than one soundbus, i.e. on those machines with
75 * multiple layout-ids */
76 char *busname;
77 int pcmid;
78};
79
80MODULE_ALIAS("sound-layout-41");
81MODULE_ALIAS("sound-layout-45");
82MODULE_ALIAS("sound-layout-51");
83MODULE_ALIAS("sound-layout-58");
84MODULE_ALIAS("sound-layout-60");
85MODULE_ALIAS("sound-layout-61");
86MODULE_ALIAS("sound-layout-64");
87MODULE_ALIAS("sound-layout-65");
88MODULE_ALIAS("sound-layout-68");
89MODULE_ALIAS("sound-layout-69");
90MODULE_ALIAS("sound-layout-70");
91MODULE_ALIAS("sound-layout-72");
92MODULE_ALIAS("sound-layout-80");
93MODULE_ALIAS("sound-layout-82");
94MODULE_ALIAS("sound-layout-84");
95MODULE_ALIAS("sound-layout-86");
96MODULE_ALIAS("sound-layout-92");
97
98/* onyx with all but microphone connected */
99static struct codec_connection onyx_connections_nomic[] = {
100 {
101 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
102 .codec_bit = 0,
103 },
104 {
105 .connected = CC_DIGITALOUT,
106 .codec_bit = 1,
107 },
108 {
109 .connected = CC_LINEIN,
110 .codec_bit = 2,
111 },
112 {} /* terminate array by .connected == 0 */
113};
114
115/* onyx on machines without headphone */
116static struct codec_connection onyx_connections_noheadphones[] = {
117 {
118 .connected = CC_SPEAKERS | CC_LINEOUT |
119 CC_LINEOUT_LABELLED_HEADPHONE,
120 .codec_bit = 0,
121 },
122 {
123 .connected = CC_DIGITALOUT,
124 .codec_bit = 1,
125 },
126 /* FIXME: are these correct? probably not for all the machines
127 * below ... If not this will need separating. */
128 {
129 .connected = CC_LINEIN,
130 .codec_bit = 2,
131 },
132 {
133 .connected = CC_MICROPHONE,
134 .codec_bit = 3,
135 },
136 {} /* terminate array by .connected == 0 */
137};
138
139/* onyx on machines with real line-out */
140static struct codec_connection onyx_connections_reallineout[] = {
141 {
142 .connected = CC_SPEAKERS | CC_LINEOUT | CC_HEADPHONE,
143 .codec_bit = 0,
144 },
145 {
146 .connected = CC_DIGITALOUT,
147 .codec_bit = 1,
148 },
149 {
150 .connected = CC_LINEIN,
151 .codec_bit = 2,
152 },
153 {} /* terminate array by .connected == 0 */
154};
155
156/* tas on machines without line out */
157static struct codec_connection tas_connections_nolineout[] = {
158 {
159 .connected = CC_SPEAKERS | CC_HEADPHONE,
160 .codec_bit = 0,
161 },
162 {
163 .connected = CC_LINEIN,
164 .codec_bit = 2,
165 },
166 {
167 .connected = CC_MICROPHONE,
168 .codec_bit = 3,
169 },
170 {} /* terminate array by .connected == 0 */
171};
172
173/* tas on machines with neither line out nor line in */
174static struct codec_connection tas_connections_noline[] = {
175 {
176 .connected = CC_SPEAKERS | CC_HEADPHONE,
177 .codec_bit = 0,
178 },
179 {
180 .connected = CC_MICROPHONE,
181 .codec_bit = 3,
182 },
183 {} /* terminate array by .connected == 0 */
184};
185
186/* tas on machines without microphone */
187static struct codec_connection tas_connections_nomic[] = {
188 {
189 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
190 .codec_bit = 0,
191 },
192 {
193 .connected = CC_LINEIN,
194 .codec_bit = 2,
195 },
196 {} /* terminate array by .connected == 0 */
197};
198
199/* tas on machines with everything connected */
200static struct codec_connection tas_connections_all[] = {
201 {
202 .connected = CC_SPEAKERS | CC_HEADPHONE | CC_LINEOUT,
203 .codec_bit = 0,
204 },
205 {
206 .connected = CC_LINEIN,
207 .codec_bit = 2,
208 },
209 {
210 .connected = CC_MICROPHONE,
211 .codec_bit = 3,
212 },
213 {} /* terminate array by .connected == 0 */
214};
215
216static struct codec_connection toonie_connections[] = {
217 {
218 .connected = CC_SPEAKERS | CC_HEADPHONE,
219 .codec_bit = 0,
220 },
221 {} /* terminate array by .connected == 0 */
222};
223
224static struct codec_connection topaz_input[] = {
225 {
226 .connected = CC_DIGITALIN,
227 .codec_bit = 0,
228 },
229 {} /* terminate array by .connected == 0 */
230};
231
232static struct codec_connection topaz_output[] = {
233 {
234 .connected = CC_DIGITALOUT,
235 .codec_bit = 1,
236 },
237 {} /* terminate array by .connected == 0 */
238};
239
240static struct codec_connection topaz_inout[] = {
241 {
242 .connected = CC_DIGITALIN,
243 .codec_bit = 0,
244 },
245 {
246 .connected = CC_DIGITALOUT,
247 .codec_bit = 1,
248 },
249 {} /* terminate array by .connected == 0 */
250};
251
252static struct layout layouts[] = {
253 /* last PowerBooks (15" Oct 2005) */
254 { .layout_id = 82,
255 .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
256 .codecs[0] = {
257 .name = "onyx",
258 .connections = onyx_connections_noheadphones,
259 },
260 .codecs[1] = {
261 .name = "topaz",
262 .connections = topaz_input,
263 },
264 },
265 /* PowerMac9,1 */
266 { .layout_id = 60,
267 .codecs[0] = {
268 .name = "onyx",
269 .connections = onyx_connections_reallineout,
270 },
271 },
272 /* PowerMac9,1 */
273 { .layout_id = 61,
274 .codecs[0] = {
275 .name = "topaz",
276 .connections = topaz_input,
277 },
278 },
279 /* PowerBook5,7 */
280 { .layout_id = 64,
281 .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
282 .codecs[0] = {
283 .name = "onyx",
284 .connections = onyx_connections_noheadphones,
285 },
286 },
287 /* PowerBook5,7 */
288 { .layout_id = 65,
289 .codecs[0] = {
290 .name = "topaz",
291 .connections = topaz_input,
292 },
293 },
294 /* PowerBook5,9 [17" Oct 2005] */
295 { .layout_id = 84,
296 .flags = LAYOUT_FLAG_COMBO_LINEOUT_SPDIF,
297 .codecs[0] = {
298 .name = "onyx",
299 .connections = onyx_connections_noheadphones,
300 },
301 .codecs[1] = {
302 .name = "topaz",
303 .connections = topaz_input,
304 },
305 },
306 /* PowerMac8,1 */
307 { .layout_id = 45,
308 .codecs[0] = {
309 .name = "onyx",
310 .connections = onyx_connections_noheadphones,
311 },
312 .codecs[1] = {
313 .name = "topaz",
314 .connections = topaz_input,
315 },
316 },
317 /* Quad PowerMac (analog in, analog/digital out) */
318 { .layout_id = 68,
319 .codecs[0] = {
320 .name = "onyx",
321 .connections = onyx_connections_nomic,
322 },
323 },
324 /* Quad PowerMac (digital in) */
325 { .layout_id = 69,
326 .codecs[0] = {
327 .name = "topaz",
328 .connections = topaz_input,
329 },
330 .busname = "digital in", .pcmid = 1 },
331 /* Early 2005 PowerBook (PowerBook 5,6) */
332 { .layout_id = 70,
333 .codecs[0] = {
334 .name = "tas",
335 .connections = tas_connections_nolineout,
336 },
337 },
338 /* PowerBook 5,4 */
339 { .layout_id = 51,
340 .codecs[0] = {
341 .name = "tas",
342 .connections = tas_connections_nolineout,
343 },
344 },
345 /* PowerBook6,7 */
346 { .layout_id = 80,
347 .codecs[0] = {
348 .name = "tas",
349 .connections = tas_connections_noline,
350 },
351 },
352 /* PowerBook6,8 */
353 { .layout_id = 72,
354 .codecs[0] = {
355 .name = "tas",
356 .connections = tas_connections_nolineout,
357 },
358 },
359 /* PowerMac8,2 */
360 { .layout_id = 86,
361 .codecs[0] = {
362 .name = "onyx",
363 .connections = onyx_connections_nomic,
364 },
365 .codecs[1] = {
366 .name = "topaz",
367 .connections = topaz_input,
368 },
369 },
370 /* PowerBook6,7 */
371 { .layout_id = 92,
372 .codecs[0] = {
373 .name = "tas",
374 .connections = tas_connections_nolineout,
375 },
376 },
377 /* PowerMac10,1 (Mac Mini) */
378 { .layout_id = 58,
379 .codecs[0] = {
380 .name = "toonie",
381 .connections = toonie_connections,
382 },
383 },
384 /* unknown, untested, but this comes from Apple */
385 { .layout_id = 41,
386 .codecs[0] = {
387 .name = "tas",
388 .connections = tas_connections_all,
389 },
390 },
391 { .layout_id = 36,
392 .codecs[0] = {
393 .name = "tas",
394 .connections = tas_connections_nomic,
395 },
396 .codecs[1] = {
397 .name = "topaz",
398 .connections = topaz_inout,
399 },
400 },
401 { .layout_id = 47,
402 .codecs[0] = {
403 .name = "onyx",
404 .connections = onyx_connections_noheadphones,
405 },
406 },
407 { .layout_id = 48,
408 .codecs[0] = {
409 .name = "topaz",
410 .connections = topaz_input,
411 },
412 },
413 { .layout_id = 49,
414 .codecs[0] = {
415 .name = "onyx",
416 .connections = onyx_connections_nomic,
417 },
418 },
419 { .layout_id = 50,
420 .codecs[0] = {
421 .name = "topaz",
422 .connections = topaz_input,
423 },
424 },
425 { .layout_id = 56,
426 .codecs[0] = {
427 .name = "onyx",
428 .connections = onyx_connections_noheadphones,
429 },
430 },
431 { .layout_id = 57,
432 .codecs[0] = {
433 .name = "topaz",
434 .connections = topaz_input,
435 },
436 },
437 { .layout_id = 62,
438 .codecs[0] = {
439 .name = "onyx",
440 .connections = onyx_connections_noheadphones,
441 },
442 .codecs[1] = {
443 .name = "topaz",
444 .connections = topaz_output,
445 },
446 },
447 { .layout_id = 66,
448 .codecs[0] = {
449 .name = "onyx",
450 .connections = onyx_connections_noheadphones,
451 },
452 },
453 { .layout_id = 67,
454 .codecs[0] = {
455 .name = "topaz",
456 .connections = topaz_input,
457 },
458 },
459 { .layout_id = 76,
460 .codecs[0] = {
461 .name = "tas",
462 .connections = tas_connections_nomic,
463 },
464 .codecs[1] = {
465 .name = "topaz",
466 .connections = topaz_inout,
467 },
468 },
469 { .layout_id = 90,
470 .codecs[0] = {
471 .name = "tas",
472 .connections = tas_connections_noline,
473 },
474 },
475 { .layout_id = 94,
476 .codecs[0] = {
477 .name = "onyx",
478 /* but it has an external mic?? how to select? */
479 .connections = onyx_connections_noheadphones,
480 },
481 },
482 { .layout_id = 96,
483 .codecs[0] = {
484 .name = "onyx",
485 .connections = onyx_connections_noheadphones,
486 },
487 },
488 { .layout_id = 98,
489 .codecs[0] = {
490 .name = "toonie",
491 .connections = toonie_connections,
492 },
493 },
494 { .layout_id = 100,
495 .codecs[0] = {
496 .name = "topaz",
497 .connections = topaz_input,
498 },
499 .codecs[1] = {
500 .name = "onyx",
501 .connections = onyx_connections_noheadphones,
502 },
503 },
504 {}
505};
506
507static struct layout *find_layout_by_id(unsigned int id)
508{
509 struct layout *l;
510
511 l = layouts;
512 while (l->layout_id) {
513 if (l->layout_id == id)
514 return l;
515 l++;
516 }
517 return NULL;
518}
519
520static void use_layout(struct layout *l)
521{
522 int i;
523
524 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
525 if (l->codecs[i].name) {
526 request_module("snd-aoa-codec-%s", l->codecs[i].name);
527 }
528 }
529 /* now we wait for the codecs to call us back */
530}
531
532struct layout_dev;
533
534struct layout_dev_ptr {
535 struct layout_dev *ptr;
536};
537
538struct layout_dev {
539 struct list_head list;
540 struct soundbus_dev *sdev;
541 struct device_node *sound;
542 struct aoa_codec *codecs[MAX_CODECS_PER_BUS];
543 struct layout *layout;
544 struct gpio_runtime gpio;
545
546 /* we need these for headphone/lineout detection */
547 struct snd_kcontrol *headphone_ctrl;
548 struct snd_kcontrol *lineout_ctrl;
549 struct snd_kcontrol *speaker_ctrl;
550 struct snd_kcontrol *headphone_detected_ctrl;
551 struct snd_kcontrol *lineout_detected_ctrl;
552
553 struct layout_dev_ptr selfptr_headphone;
554 struct layout_dev_ptr selfptr_lineout;
555
556 u32 have_lineout_detect:1,
557 have_headphone_detect:1,
558 switch_on_headphone:1,
559 switch_on_lineout:1;
560};
561
562static LIST_HEAD(layouts_list);
563static int layouts_list_items;
564/* this can go away but only if we allow multiple cards,
565 * make the fabric handle all the card stuff, etc... */
566static struct layout_dev *layout_device;
567
568static int control_info(struct snd_kcontrol *kcontrol,
569 struct snd_ctl_elem_info *uinfo)
570{
571 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
572 uinfo->count = 1;
573 uinfo->value.integer.min = 0;
574 uinfo->value.integer.max = 1;
575 return 0;
576}
577
578#define AMP_CONTROL(n, description) \
579static int n##_control_get(struct snd_kcontrol *kcontrol, \
580 struct snd_ctl_elem_value *ucontrol) \
581{ \
582 struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol); \
583 if (gpio->methods && gpio->methods->get_##n) \
584 ucontrol->value.integer.value[0] = \
585 gpio->methods->get_##n(gpio); \
586 return 0; \
587} \
588static int n##_control_put(struct snd_kcontrol *kcontrol, \
589 struct snd_ctl_elem_value *ucontrol) \
590{ \
591 struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol); \
592 if (gpio->methods && gpio->methods->get_##n) \
593 gpio->methods->set_##n(gpio, \
594 ucontrol->value.integer.value[0]); \
595 return 1; \
596} \
597static struct snd_kcontrol_new n##_ctl = { \
598 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
599 .name = description, \
600 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
601 .info = control_info, \
602 .get = n##_control_get, \
603 .put = n##_control_put, \
604}
605
606AMP_CONTROL(headphone, "Headphone Switch");
607AMP_CONTROL(speakers, "Speakers Switch");
608AMP_CONTROL(lineout, "Line-Out Switch");
609
610static int detect_choice_get(struct snd_kcontrol *kcontrol,
611 struct snd_ctl_elem_value *ucontrol)
612{
613 struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
614
615 switch (kcontrol->private_value) {
616 case 0:
617 ucontrol->value.integer.value[0] = ldev->switch_on_headphone;
618 break;
619 case 1:
620 ucontrol->value.integer.value[0] = ldev->switch_on_lineout;
621 break;
622 default:
623 return -ENODEV;
624 }
625 return 0;
626}
627
628static int detect_choice_put(struct snd_kcontrol *kcontrol,
629 struct snd_ctl_elem_value *ucontrol)
630{
631 struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
632
633 switch (kcontrol->private_value) {
634 case 0:
635 ldev->switch_on_headphone = !!ucontrol->value.integer.value[0];
636 break;
637 case 1:
638 ldev->switch_on_lineout = !!ucontrol->value.integer.value[0];
639 break;
640 default:
641 return -ENODEV;
642 }
643 return 1;
644}
645
646static struct snd_kcontrol_new headphone_detect_choice = {
647 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
648 .name = "Headphone Detect Autoswitch",
649 .info = control_info,
650 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
651 .get = detect_choice_get,
652 .put = detect_choice_put,
653 .private_value = 0,
654};
655
656static struct snd_kcontrol_new lineout_detect_choice = {
657 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
658 .name = "Line-Out Detect Autoswitch",
659 .info = control_info,
660 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
661 .get = detect_choice_get,
662 .put = detect_choice_put,
663 .private_value = 1,
664};
665
666static int detected_get(struct snd_kcontrol *kcontrol,
667 struct snd_ctl_elem_value *ucontrol)
668{
669 struct layout_dev *ldev = snd_kcontrol_chip(kcontrol);
670 int v;
671
672 switch (kcontrol->private_value) {
673 case 0:
674 v = ldev->gpio.methods->get_detect(&ldev->gpio,
675 AOA_NOTIFY_HEADPHONE);
676 break;
677 case 1:
678 v = ldev->gpio.methods->get_detect(&ldev->gpio,
679 AOA_NOTIFY_LINE_OUT);
680 break;
681 default:
682 return -ENODEV;
683 }
684 ucontrol->value.integer.value[0] = v;
685 return 0;
686}
687
688static struct snd_kcontrol_new headphone_detected = {
689 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
690 .name = "Headphone Detected",
691 .info = control_info,
692 .access = SNDRV_CTL_ELEM_ACCESS_READ,
693 .get = detected_get,
694 .private_value = 0,
695};
696
697static struct snd_kcontrol_new lineout_detected = {
698 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
699 .name = "Line-Out Detected",
700 .info = control_info,
701 .access = SNDRV_CTL_ELEM_ACCESS_READ,
702 .get = detected_get,
703 .private_value = 1,
704};
705
706static int check_codec(struct aoa_codec *codec,
707 struct layout_dev *ldev,
708 struct codec_connect_info *cci)
709{
710 u32 *ref;
711 char propname[32];
712 struct codec_connection *cc;
713
714 /* if the codec has a 'codec' node, we require a reference */
715 if (codec->node && (strcmp(codec->node->name, "codec") == 0)) {
716 snprintf(propname, sizeof(propname),
717 "platform-%s-codec-ref", codec->name);
718 ref = (u32*)get_property(ldev->sound, propname, NULL);
719 if (!ref) {
720 printk(KERN_INFO "snd-aoa-fabric-layout: "
721 "required property %s not present\n", propname);
722 return -ENODEV;
723 }
724 if (*ref != codec->node->linux_phandle) {
725 printk(KERN_INFO "snd-aoa-fabric-layout: "
726 "%s doesn't match!\n", propname);
727 return -ENODEV;
728 }
729 } else {
730 if (layouts_list_items != 1) {
731 printk(KERN_INFO "snd-aoa-fabric-layout: "
732 "more than one soundbus, but no references.\n");
733 return -ENODEV;
734 }
735 }
736 codec->soundbus_dev = ldev->sdev;
737 codec->gpio = &ldev->gpio;
738
739 cc = cci->connections;
740 if (!cc)
741 return -EINVAL;
742
743 printk(KERN_INFO "snd-aoa-fabric-layout: can use this codec\n");
744
745 codec->connected = 0;
746 codec->fabric_data = cc;
747
748 while (cc->connected) {
749 codec->connected |= 1<<cc->codec_bit;
750 cc++;
751 }
752
753 return 0;
754}
755
756static int layout_found_codec(struct aoa_codec *codec)
757{
758 struct layout_dev *ldev;
759 int i;
760
761 list_for_each_entry(ldev, &layouts_list, list) {
762 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
763 if (!ldev->layout->codecs[i].name)
764 continue;
765 if (strcmp(ldev->layout->codecs[i].name, codec->name) == 0) {
766 if (check_codec(codec,
767 ldev,
768 &ldev->layout->codecs[i]) == 0)
769 return 0;
770 }
771 }
772 }
773 return -ENODEV;
774}
775
776static void layout_remove_codec(struct aoa_codec *codec)
777{
778 int i;
779 /* here remove the codec from the layout dev's
780 * codec reference */
781
782 codec->soundbus_dev = NULL;
783 codec->gpio = NULL;
784 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
785 }
786}
787
788static void layout_notify(void *data)
789{
790 struct layout_dev_ptr *dptr = data;
791 struct layout_dev *ldev;
792 int v, update;
793 struct snd_kcontrol *detected, *c;
794 struct snd_card *card = aoa_get_card();
795
796 ldev = dptr->ptr;
797 if (data == &ldev->selfptr_headphone) {
798 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_HEADPHONE);
799 detected = ldev->headphone_detected_ctrl;
800 update = ldev->switch_on_headphone;
801 if (update) {
802 ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
803 ldev->gpio.methods->set_headphone(&ldev->gpio, v);
804 ldev->gpio.methods->set_lineout(&ldev->gpio, 0);
805 }
806 } else if (data == &ldev->selfptr_lineout) {
807 v = ldev->gpio.methods->get_detect(&ldev->gpio, AOA_NOTIFY_LINE_OUT);
808 detected = ldev->lineout_detected_ctrl;
809 update = ldev->switch_on_lineout;
810 if (update) {
811 ldev->gpio.methods->set_speakers(&ldev->gpio, !v);
812 ldev->gpio.methods->set_headphone(&ldev->gpio, 0);
813 ldev->gpio.methods->set_lineout(&ldev->gpio, v);
814 }
815 } else
816 return;
817
818 if (detected)
819 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &detected->id);
820 if (update) {
821 c = ldev->headphone_ctrl;
822 if (c)
823 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
824 c = ldev->speaker_ctrl;
825 if (c)
826 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
827 c = ldev->lineout_ctrl;
828 if (c)
829 snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &c->id);
830 }
831}
832
833static void layout_attached_codec(struct aoa_codec *codec)
834{
835 struct codec_connection *cc;
836 struct snd_kcontrol *ctl;
837 int headphones, lineout;
838 struct layout_dev *ldev = layout_device;
839
840 /* need to add this codec to our codec array! */
841
842 cc = codec->fabric_data;
843
844 headphones = codec->gpio->methods->get_detect(codec->gpio,
845 AOA_NOTIFY_HEADPHONE);
846 lineout = codec->gpio->methods->get_detect(codec->gpio,
847 AOA_NOTIFY_LINE_OUT);
848
849 while (cc->connected) {
850 if (cc->connected & CC_SPEAKERS) {
851 if (headphones <= 0 && lineout <= 0)
852 ldev->gpio.methods->set_speakers(codec->gpio, 1);
853 ctl = snd_ctl_new1(&speakers_ctl, codec->gpio);
854 ldev->speaker_ctrl = ctl;
855 aoa_snd_ctl_add(ctl);
856 }
857 if (cc->connected & CC_HEADPHONE) {
858 if (headphones == 1)
859 ldev->gpio.methods->set_headphone(codec->gpio, 1);
860 ctl = snd_ctl_new1(&headphone_ctl, codec->gpio);
861 ldev->headphone_ctrl = ctl;
862 aoa_snd_ctl_add(ctl);
863 ldev->have_headphone_detect =
864 !ldev->gpio.methods
865 ->set_notify(&ldev->gpio,
866 AOA_NOTIFY_HEADPHONE,
867 layout_notify,
868 &ldev->selfptr_headphone);
869 if (ldev->have_headphone_detect) {
870 ctl = snd_ctl_new1(&headphone_detect_choice,
871 ldev);
872 aoa_snd_ctl_add(ctl);
873 ctl = snd_ctl_new1(&headphone_detected,
874 ldev);
875 ldev->headphone_detected_ctrl = ctl;
876 aoa_snd_ctl_add(ctl);
877 }
878 }
879 if (cc->connected & CC_LINEOUT) {
880 if (lineout == 1)
881 ldev->gpio.methods->set_lineout(codec->gpio, 1);
882 ctl = snd_ctl_new1(&lineout_ctl, codec->gpio);
883 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
884 strlcpy(ctl->id.name,
885 "Headphone Switch", sizeof(ctl->id.name));
886 ldev->lineout_ctrl = ctl;
887 aoa_snd_ctl_add(ctl);
888 ldev->have_lineout_detect =
889 !ldev->gpio.methods
890 ->set_notify(&ldev->gpio,
891 AOA_NOTIFY_LINE_OUT,
892 layout_notify,
893 &ldev->selfptr_lineout);
894 if (ldev->have_lineout_detect) {
895 ctl = snd_ctl_new1(&lineout_detect_choice,
896 ldev);
897 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
898 strlcpy(ctl->id.name,
899 "Headphone Detect Autoswitch",
900 sizeof(ctl->id.name));
901 aoa_snd_ctl_add(ctl);
902 ctl = snd_ctl_new1(&lineout_detected,
903 ldev);
904 if (cc->connected & CC_LINEOUT_LABELLED_HEADPHONE)
905 strlcpy(ctl->id.name,
906 "Headphone Detected",
907 sizeof(ctl->id.name));
908 ldev->lineout_detected_ctrl = ctl;
909 aoa_snd_ctl_add(ctl);
910 }
911 }
912 cc++;
913 }
914 /* now update initial state */
915 if (ldev->have_headphone_detect)
916 layout_notify(&ldev->selfptr_headphone);
917 if (ldev->have_lineout_detect)
918 layout_notify(&ldev->selfptr_lineout);
919}
920
921static struct aoa_fabric layout_fabric = {
922 .name = "SoundByLayout",
923 .owner = THIS_MODULE,
924 .found_codec = layout_found_codec,
925 .remove_codec = layout_remove_codec,
926 .attached_codec = layout_attached_codec,
927};
928
929static int aoa_fabric_layout_probe(struct soundbus_dev *sdev)
930{
931 struct device_node *sound = NULL;
932 unsigned int *layout_id;
933 struct layout *layout;
934 struct layout_dev *ldev = NULL;
935 int err;
936
937 /* hm, currently we can only have one ... */
938 if (layout_device)
939 return -ENODEV;
940
941 /* by breaking out we keep a reference */
942 while ((sound = of_get_next_child(sdev->ofdev.node, sound))) {
943 if (sound->type && strcasecmp(sound->type, "soundchip") == 0)
944 break;
945 }
946 if (!sound) return -ENODEV;
947
948 layout_id = (unsigned int *) get_property(sound, "layout-id", NULL);
949 if (!layout_id)
950 goto outnodev;
951 printk(KERN_INFO "snd-aoa-fabric-layout: found bus with layout %d ", *layout_id);
952
953 layout = find_layout_by_id(*layout_id);
954 if (!layout) {
955 printk("(no idea how to handle)\n");
956 goto outnodev;
957 }
958
959 ldev = kzalloc(sizeof(struct layout_dev), GFP_KERNEL);
960 if (!ldev)
961 goto outnodev;
962
963 layout_device = ldev;
964 ldev->sdev = sdev;
965 ldev->sound = sound;
966 ldev->layout = layout;
967 ldev->gpio.node = sound->parent;
968 switch (layout->layout_id) {
969 case 41: /* that unknown machine no one seems to have */
970 case 51: /* PowerBook5,4 */
971 case 58: /* Mac Mini */
972 ldev->gpio.methods = ftr_gpio_methods;
973 break;
974 default:
975 ldev->gpio.methods = pmf_gpio_methods;
976 }
977 ldev->selfptr_headphone.ptr = ldev;
978 ldev->selfptr_lineout.ptr = ldev;
979 sdev->ofdev.dev.driver_data = ldev;
980
981 printk("(using)\n");
982 list_add(&ldev->list, &layouts_list);
983 layouts_list_items++;
984
985 /* assign these before registering ourselves, so
986 * callbacks that are done during registration
987 * already have the values */
988 sdev->pcmid = ldev->layout->pcmid;
989 if (ldev->layout->busname) {
990 sdev->pcmname = ldev->layout->busname;
991 } else {
992 sdev->pcmname = "Master";
993 }
994
995 ldev->gpio.methods->init(&ldev->gpio);
996
997 err = aoa_fabric_register(&layout_fabric);
998 if (err && err != -EALREADY) {
999 printk(KERN_INFO "snd-aoa-fabric-layout: can't use,"
1000 " another fabric is active!\n");
1001 goto outlistdel;
1002 }
1003
1004 use_layout(layout);
1005 ldev->switch_on_headphone = 1;
1006 ldev->switch_on_lineout = 1;
1007 return 0;
1008 outlistdel:
1009 /* we won't be using these then... */
1010 ldev->gpio.methods->exit(&ldev->gpio);
1011 /* reset if we didn't use it */
1012 sdev->pcmname = NULL;
1013 sdev->pcmid = -1;
1014 list_del(&ldev->list);
1015 layouts_list_items--;
1016 outnodev:
1017 if (sound) of_node_put(sound);
1018 layout_device = NULL;
1019 if (ldev) kfree(ldev);
1020 return -ENODEV;
1021}
1022
1023static int aoa_fabric_layout_remove(struct soundbus_dev *sdev)
1024{
1025 struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
1026 int i;
1027
1028 for (i=0; i<MAX_CODECS_PER_BUS; i++) {
1029 if (ldev->codecs[i]) {
1030 aoa_fabric_unlink_codec(ldev->codecs[i]);
1031 }
1032 ldev->codecs[i] = NULL;
1033 }
1034 list_del(&ldev->list);
1035 layouts_list_items--;
1036 of_node_put(ldev->sound);
1037
1038 ldev->gpio.methods->set_notify(&ldev->gpio,
1039 AOA_NOTIFY_HEADPHONE,
1040 NULL,
1041 NULL);
1042 ldev->gpio.methods->set_notify(&ldev->gpio,
1043 AOA_NOTIFY_LINE_OUT,
1044 NULL,
1045 NULL);
1046
1047 ldev->gpio.methods->exit(&ldev->gpio);
1048 layout_device = NULL;
1049 kfree(ldev);
1050 sdev->pcmid = -1;
1051 sdev->pcmname = NULL;
1052 return 0;
1053}
1054
1055#ifdef CONFIG_PM
1056static int aoa_fabric_layout_suspend(struct soundbus_dev *sdev, pm_message_t state)
1057{
1058 struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
1059
1060 printk("aoa_fabric_layout_suspend()\n");
1061
1062 if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1063 ldev->gpio.methods->all_amps_off(&ldev->gpio);
1064
1065 return 0;
1066}
1067
1068static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
1069{
1070 struct layout_dev *ldev = sdev->ofdev.dev.driver_data;
1071
1072 printk("aoa_fabric_layout_resume()\n");
1073
1074 if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
1075 ldev->gpio.methods->all_amps_restore(&ldev->gpio);
1076
1077 return 0;
1078}
1079#endif
1080
1081static struct soundbus_driver aoa_soundbus_driver = {
1082 .name = "snd_aoa_soundbus_drv",
1083 .owner = THIS_MODULE,
1084 .probe = aoa_fabric_layout_probe,
1085 .remove = aoa_fabric_layout_remove,
1086#ifdef CONFIG_PM
1087 .suspend = aoa_fabric_layout_suspend,
1088 .resume = aoa_fabric_layout_resume,
1089#endif
1090};
1091
1092static int __init aoa_fabric_layout_init(void)
1093{
1094 int err;
1095
1096 err = soundbus_register_driver(&aoa_soundbus_driver);
1097 if (err)
1098 return err;
1099 return 0;
1100}
1101
1102static void __exit aoa_fabric_layout_exit(void)
1103{
1104 soundbus_unregister_driver(&aoa_soundbus_driver);
1105 aoa_fabric_unregister(&layout_fabric);
1106}
1107
1108module_init(aoa_fabric_layout_init);
1109module_exit(aoa_fabric_layout_exit);
diff --git a/sound/aoa/soundbus/Kconfig b/sound/aoa/soundbus/Kconfig
new file mode 100644
index 000000000000..d532d27a9f54
--- /dev/null
+++ b/sound/aoa/soundbus/Kconfig
@@ -0,0 +1,14 @@
1config SND_AOA_SOUNDBUS
2 tristate "Apple Soundbus support"
3 depends on SOUND && SND_PCM && EXPERIMENTAL
4 ---help---
5 This option enables the generic driver for the soundbus
6 support on Apple machines.
7
8 It is required for the sound bus implementations.
9
10config SND_AOA_SOUNDBUS_I2S
11 tristate "I2S bus support"
12 depends on SND_AOA_SOUNDBUS && PCI
13 ---help---
14 This option enables support for Apple I2S busses.
diff --git a/sound/aoa/soundbus/Makefile b/sound/aoa/soundbus/Makefile
new file mode 100644
index 000000000000..0e61f5aa06b5
--- /dev/null
+++ b/sound/aoa/soundbus/Makefile
@@ -0,0 +1,3 @@
1obj-$(CONFIG_SND_AOA_SOUNDBUS) += snd-aoa-soundbus.o
2snd-aoa-soundbus-objs := core.o sysfs.o
3obj-$(CONFIG_SND_AOA_SOUNDBUS_I2S) += i2sbus/
diff --git a/sound/aoa/soundbus/core.c b/sound/aoa/soundbus/core.c
new file mode 100644
index 000000000000..abe84a76c835
--- /dev/null
+++ b/sound/aoa/soundbus/core.c
@@ -0,0 +1,250 @@
1/*
2 * soundbus
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8
9#include <linux/module.h>
10#include "soundbus.h"
11
12MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
13MODULE_LICENSE("GPL");
14MODULE_DESCRIPTION("Apple Soundbus");
15
16struct soundbus_dev *soundbus_dev_get(struct soundbus_dev *dev)
17{
18 struct device *tmp;
19
20 if (!dev)
21 return NULL;
22 tmp = get_device(&dev->ofdev.dev);
23 if (tmp)
24 return to_soundbus_device(tmp);
25 else
26 return NULL;
27}
28EXPORT_SYMBOL_GPL(soundbus_dev_get);
29
30void soundbus_dev_put(struct soundbus_dev *dev)
31{
32 if (dev)
33 put_device(&dev->ofdev.dev);
34}
35EXPORT_SYMBOL_GPL(soundbus_dev_put);
36
37static int soundbus_probe(struct device *dev)
38{
39 int error = -ENODEV;
40 struct soundbus_driver *drv;
41 struct soundbus_dev *soundbus_dev;
42
43 drv = to_soundbus_driver(dev->driver);
44 soundbus_dev = to_soundbus_device(dev);
45
46 if (!drv->probe)
47 return error;
48
49 soundbus_dev_get(soundbus_dev);
50
51 error = drv->probe(soundbus_dev);
52 if (error)
53 soundbus_dev_put(soundbus_dev);
54
55 return error;
56}
57
58
59static int soundbus_uevent(struct device *dev, char **envp, int num_envp,
60 char *buffer, int buffer_size)
61{
62 struct soundbus_dev * soundbus_dev;
63 struct of_device * of;
64 char *scratch, *compat, *compat2;
65 int i = 0;
66 int length, cplen, cplen2, seen = 0;
67
68 if (!dev)
69 return -ENODEV;
70
71 soundbus_dev = to_soundbus_device(dev);
72 if (!soundbus_dev)
73 return -ENODEV;
74
75 of = &soundbus_dev->ofdev;
76
77 /* stuff we want to pass to /sbin/hotplug */
78 envp[i++] = scratch = buffer;
79 length = scnprintf (scratch, buffer_size, "OF_NAME=%s", of->node->name);
80 ++length;
81 buffer_size -= length;
82 if ((buffer_size <= 0) || (i >= num_envp))
83 return -ENOMEM;
84 scratch += length;
85
86 envp[i++] = scratch;
87 length = scnprintf (scratch, buffer_size, "OF_TYPE=%s", of->node->type);
88 ++length;
89 buffer_size -= length;
90 if ((buffer_size <= 0) || (i >= num_envp))
91 return -ENOMEM;
92 scratch += length;
93
94 /* Since the compatible field can contain pretty much anything
95 * it's not really legal to split it out with commas. We split it
96 * up using a number of environment variables instead. */
97
98 compat = (char *) get_property(of->node, "compatible", &cplen);
99 compat2 = compat;
100 cplen2= cplen;
101 while (compat && cplen > 0) {
102 envp[i++] = scratch;
103 length = scnprintf (scratch, buffer_size,
104 "OF_COMPATIBLE_%d=%s", seen, compat);
105 ++length;
106 buffer_size -= length;
107 if ((buffer_size <= 0) || (i >= num_envp))
108 return -ENOMEM;
109 scratch += length;
110 length = strlen (compat) + 1;
111 compat += length;
112 cplen -= length;
113 seen++;
114 }
115
116 envp[i++] = scratch;
117 length = scnprintf (scratch, buffer_size, "OF_COMPATIBLE_N=%d", seen);
118 ++length;
119 buffer_size -= length;
120 if ((buffer_size <= 0) || (i >= num_envp))
121 return -ENOMEM;
122 scratch += length;
123
124 envp[i++] = scratch;
125 length = scnprintf (scratch, buffer_size, "MODALIAS=%s",
126 soundbus_dev->modalias);
127
128 buffer_size -= length;
129 if ((buffer_size <= 0) || (i >= num_envp))
130 return -ENOMEM;
131
132 envp[i] = NULL;
133
134 return 0;
135}
136
137static int soundbus_device_remove(struct device *dev)
138{
139 struct soundbus_dev * soundbus_dev = to_soundbus_device(dev);
140 struct soundbus_driver * drv = to_soundbus_driver(dev->driver);
141
142 if (dev->driver && drv->remove)
143 drv->remove(soundbus_dev);
144 soundbus_dev_put(soundbus_dev);
145
146 return 0;
147}
148
149static void soundbus_device_shutdown(struct device *dev)
150{
151 struct soundbus_dev * soundbus_dev = to_soundbus_device(dev);
152 struct soundbus_driver * drv = to_soundbus_driver(dev->driver);
153
154 if (dev->driver && drv->shutdown)
155 drv->shutdown(soundbus_dev);
156}
157
158#ifdef CONFIG_PM
159
160static int soundbus_device_suspend(struct device *dev, pm_message_t state)
161{
162 struct soundbus_dev * soundbus_dev = to_soundbus_device(dev);
163 struct soundbus_driver * drv = to_soundbus_driver(dev->driver);
164
165 if (dev->driver && drv->suspend)
166 return drv->suspend(soundbus_dev, state);
167 return 0;
168}
169
170static int soundbus_device_resume(struct device * dev)
171{
172 struct soundbus_dev * soundbus_dev = to_soundbus_device(dev);
173 struct soundbus_driver * drv = to_soundbus_driver(dev->driver);
174
175 if (dev->driver && drv->resume)
176 return drv->resume(soundbus_dev);
177 return 0;
178}
179
180#endif /* CONFIG_PM */
181
182extern struct device_attribute soundbus_dev_attrs[];
183
184static struct bus_type soundbus_bus_type = {
185 .name = "aoa-soundbus",
186 .probe = soundbus_probe,
187 .uevent = soundbus_uevent,
188 .remove = soundbus_device_remove,
189 .shutdown = soundbus_device_shutdown,
190#ifdef CONFIG_PM
191 .suspend = soundbus_device_suspend,
192 .resume = soundbus_device_resume,
193#endif
194 .dev_attrs = soundbus_dev_attrs,
195};
196
197static int __init soundbus_init(void)
198{
199 return bus_register(&soundbus_bus_type);
200}
201
202static void __exit soundbus_exit(void)
203{
204 bus_unregister(&soundbus_bus_type);
205}
206
207int soundbus_add_one(struct soundbus_dev *dev)
208{
209 static int devcount;
210
211 /* sanity checks */
212 if (!dev->attach_codec ||
213 !dev->ofdev.node ||
214 dev->pcmname ||
215 dev->pcmid != -1) {
216 printk(KERN_ERR "soundbus: adding device failed sanity check!\n");
217 return -EINVAL;
218 }
219
220 snprintf(dev->ofdev.dev.bus_id, BUS_ID_SIZE, "soundbus:%x", ++devcount);
221 dev->ofdev.dev.bus = &soundbus_bus_type;
222 return of_device_register(&dev->ofdev);
223}
224EXPORT_SYMBOL_GPL(soundbus_add_one);
225
226void soundbus_remove_one(struct soundbus_dev *dev)
227{
228 of_device_unregister(&dev->ofdev);
229}
230EXPORT_SYMBOL_GPL(soundbus_remove_one);
231
232int soundbus_register_driver(struct soundbus_driver *drv)
233{
234 /* initialize common driver fields */
235 drv->driver.name = drv->name;
236 drv->driver.bus = &soundbus_bus_type;
237
238 /* register with core */
239 return driver_register(&drv->driver);
240}
241EXPORT_SYMBOL_GPL(soundbus_register_driver);
242
243void soundbus_unregister_driver(struct soundbus_driver *drv)
244{
245 driver_unregister(&drv->driver);
246}
247EXPORT_SYMBOL_GPL(soundbus_unregister_driver);
248
249module_init(soundbus_init);
250module_exit(soundbus_exit);
diff --git a/sound/aoa/soundbus/i2sbus/Makefile b/sound/aoa/soundbus/i2sbus/Makefile
new file mode 100644
index 000000000000..e57a5cf65655
--- /dev/null
+++ b/sound/aoa/soundbus/i2sbus/Makefile
@@ -0,0 +1,2 @@
1obj-$(CONFIG_SND_AOA_SOUNDBUS_I2S) += snd-aoa-i2sbus.o
2snd-aoa-i2sbus-objs := i2sbus-core.o i2sbus-pcm.o i2sbus-control.o
diff --git a/sound/aoa/soundbus/i2sbus/i2sbus-control.c b/sound/aoa/soundbus/i2sbus/i2sbus-control.c
new file mode 100644
index 000000000000..f50407952d3c
--- /dev/null
+++ b/sound/aoa/soundbus/i2sbus/i2sbus-control.c
@@ -0,0 +1,192 @@
1/*
2 * i2sbus driver -- bus control routines
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8
9#include <asm/io.h>
10#include <linux/delay.h>
11#include <asm/prom.h>
12#include <asm/macio.h>
13#include <asm/pmac_feature.h>
14#include <asm/pmac_pfunc.h>
15#include "i2sbus.h"
16
17int i2sbus_control_init(struct macio_dev* dev, struct i2sbus_control **c)
18{
19 *c = kzalloc(sizeof(struct i2sbus_control), GFP_KERNEL);
20 if (!*c)
21 return -ENOMEM;
22
23 INIT_LIST_HEAD(&(*c)->list);
24
25 if (of_address_to_resource(dev->ofdev.node, 0, &(*c)->rsrc))
26 goto err;
27 /* we really should be using feature calls instead of mapping
28 * these registers. It's safe for now since no one else is
29 * touching them... */
30 (*c)->controlregs = ioremap((*c)->rsrc.start,
31 sizeof(struct i2s_control_regs));
32 if (!(*c)->controlregs)
33 goto err;
34
35 return 0;
36 err:
37 kfree(*c);
38 *c = NULL;
39 return -ENODEV;
40}
41
42void i2sbus_control_destroy(struct i2sbus_control *c)
43{
44 iounmap(c->controlregs);
45 kfree(c);
46}
47
48/* this is serialised externally */
49int i2sbus_control_add_dev(struct i2sbus_control *c,
50 struct i2sbus_dev *i2sdev)
51{
52 struct device_node *np;
53
54 np = i2sdev->sound.ofdev.node;
55 i2sdev->enable = pmf_find_function(np, "enable");
56 i2sdev->cell_enable = pmf_find_function(np, "cell-enable");
57 i2sdev->clock_enable = pmf_find_function(np, "clock-enable");
58 i2sdev->cell_disable = pmf_find_function(np, "cell-disable");
59 i2sdev->clock_disable = pmf_find_function(np, "clock-disable");
60
61 /* if the bus number is not 0 or 1 we absolutely need to use
62 * the platform functions -- there's nothing in Darwin that
63 * would allow seeing a system behind what the FCRs are then,
64 * and I don't want to go parsing a bunch of platform functions
65 * by hand to try finding a system... */
66 if (i2sdev->bus_number != 0 && i2sdev->bus_number != 1 &&
67 (!i2sdev->enable ||
68 !i2sdev->cell_enable || !i2sdev->clock_enable ||
69 !i2sdev->cell_disable || !i2sdev->clock_disable)) {
70 pmf_put_function(i2sdev->enable);
71 pmf_put_function(i2sdev->cell_enable);
72 pmf_put_function(i2sdev->clock_enable);
73 pmf_put_function(i2sdev->cell_disable);
74 pmf_put_function(i2sdev->clock_disable);
75 return -ENODEV;
76 }
77
78 list_add(&i2sdev->item, &c->list);
79
80 return 0;
81}
82
83void i2sbus_control_remove_dev(struct i2sbus_control *c,
84 struct i2sbus_dev *i2sdev)
85{
86 /* this is serialised externally */
87 list_del(&i2sdev->item);
88 if (list_empty(&c->list))
89 i2sbus_control_destroy(c);
90}
91
92int i2sbus_control_enable(struct i2sbus_control *c,
93 struct i2sbus_dev *i2sdev)
94{
95 struct pmf_args args = { .count = 0 };
96 int cc;
97
98 if (i2sdev->enable)
99 return pmf_call_one(i2sdev->enable, &args);
100
101 switch (i2sdev->bus_number) {
102 case 0:
103 cc = in_le32(&c->controlregs->cell_control);
104 out_le32(&c->controlregs->cell_control, cc | CTRL_CLOCK_INTF_0_ENABLE);
105 break;
106 case 1:
107 cc = in_le32(&c->controlregs->cell_control);
108 out_le32(&c->controlregs->cell_control, cc | CTRL_CLOCK_INTF_1_ENABLE);
109 break;
110 default:
111 return -ENODEV;
112 }
113 return 0;
114}
115
116int i2sbus_control_cell(struct i2sbus_control *c,
117 struct i2sbus_dev *i2sdev,
118 int enable)
119{
120 struct pmf_args args = { .count = 0 };
121 int cc;
122
123 switch (enable) {
124 case 0:
125 if (i2sdev->cell_disable)
126 return pmf_call_one(i2sdev->cell_disable, &args);
127 break;
128 case 1:
129 if (i2sdev->cell_enable)
130 return pmf_call_one(i2sdev->cell_enable, &args);
131 break;
132 default:
133 printk(KERN_ERR "i2sbus: INVALID CELL ENABLE VALUE\n");
134 return -ENODEV;
135 }
136 switch (i2sdev->bus_number) {
137 case 0:
138 cc = in_le32(&c->controlregs->cell_control);
139 cc &= ~CTRL_CLOCK_CELL_0_ENABLE;
140 cc |= enable * CTRL_CLOCK_CELL_0_ENABLE;
141 out_le32(&c->controlregs->cell_control, cc);
142 break;
143 case 1:
144 cc = in_le32(&c->controlregs->cell_control);
145 cc &= ~CTRL_CLOCK_CELL_1_ENABLE;
146 cc |= enable * CTRL_CLOCK_CELL_1_ENABLE;
147 out_le32(&c->controlregs->cell_control, cc);
148 break;
149 default:
150 return -ENODEV;
151 }
152 return 0;
153}
154
155int i2sbus_control_clock(struct i2sbus_control *c,
156 struct i2sbus_dev *i2sdev,
157 int enable)
158{
159 struct pmf_args args = { .count = 0 };
160 int cc;
161
162 switch (enable) {
163 case 0:
164 if (i2sdev->clock_disable)
165 return pmf_call_one(i2sdev->clock_disable, &args);
166 break;
167 case 1:
168 if (i2sdev->clock_enable)
169 return pmf_call_one(i2sdev->clock_enable, &args);
170 break;
171 default:
172 printk(KERN_ERR "i2sbus: INVALID CLOCK ENABLE VALUE\n");
173 return -ENODEV;
174 }
175 switch (i2sdev->bus_number) {
176 case 0:
177 cc = in_le32(&c->controlregs->cell_control);
178 cc &= ~CTRL_CLOCK_CLOCK_0_ENABLE;
179 cc |= enable * CTRL_CLOCK_CLOCK_0_ENABLE;
180 out_le32(&c->controlregs->cell_control, cc);
181 break;
182 case 1:
183 cc = in_le32(&c->controlregs->cell_control);
184 cc &= ~CTRL_CLOCK_CLOCK_1_ENABLE;
185 cc |= enable * CTRL_CLOCK_CLOCK_1_ENABLE;
186 out_le32(&c->controlregs->cell_control, cc);
187 break;
188 default:
189 return -ENODEV;
190 }
191 return 0;
192}
diff --git a/sound/aoa/soundbus/i2sbus/i2sbus-control.h b/sound/aoa/soundbus/i2sbus/i2sbus-control.h
new file mode 100644
index 000000000000..bb05550f730b
--- /dev/null
+++ b/sound/aoa/soundbus/i2sbus/i2sbus-control.h
@@ -0,0 +1,37 @@
1/*
2 * i2sbus driver -- bus register definitions
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8#ifndef __I2SBUS_CONTROLREGS_H
9#define __I2SBUS_CONTROLREGS_H
10
11/* i2s control registers, at least what we know about them */
12
13#define __PAD(m,n) u8 __pad##m[n]
14#define _PAD(line, n) __PAD(line, n)
15#define PAD(n) _PAD(__LINE__, (n))
16struct i2s_control_regs {
17 PAD(0x38);
18 __le32 fcr0; /* 0x38 (unknown) */
19 __le32 cell_control; /* 0x3c (fcr1) */
20 __le32 fcr2; /* 0x40 (unknown) */
21 __le32 fcr3; /* 0x44 (fcr3) */
22 __le32 clock_control; /* 0x48 (unknown) */
23 PAD(4);
24 /* total size: 0x50 bytes */
25} __attribute__((__packed__));
26
27#define CTRL_CLOCK_CELL_0_ENABLE (1<<10)
28#define CTRL_CLOCK_CLOCK_0_ENABLE (1<<12)
29#define CTRL_CLOCK_SWRESET_0 (1<<11)
30#define CTRL_CLOCK_INTF_0_ENABLE (1<<13)
31
32#define CTRL_CLOCK_CELL_1_ENABLE (1<<17)
33#define CTRL_CLOCK_CLOCK_1_ENABLE (1<<18)
34#define CTRL_CLOCK_SWRESET_1 (1<<19)
35#define CTRL_CLOCK_INTF_1_ENABLE (1<<20)
36
37#endif /* __I2SBUS_CONTROLREGS_H */
diff --git a/sound/aoa/soundbus/i2sbus/i2sbus-core.c b/sound/aoa/soundbus/i2sbus/i2sbus-core.c
new file mode 100644
index 000000000000..f268dacdaa00
--- /dev/null
+++ b/sound/aoa/soundbus/i2sbus/i2sbus-core.c
@@ -0,0 +1,387 @@
1/*
2 * i2sbus driver
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8
9#include <linux/module.h>
10#include <asm/macio.h>
11#include <asm/dbdma.h>
12#include <linux/pci.h>
13#include <linux/interrupt.h>
14#include <sound/driver.h>
15#include <sound/core.h>
16#include <linux/dma-mapping.h>
17#include "../soundbus.h"
18#include "i2sbus.h"
19
20MODULE_LICENSE("GPL");
21MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>");
22MODULE_DESCRIPTION("Apple Soundbus: I2S support");
23/* for auto-loading, declare that we handle this weird
24 * string that macio puts into the relevant device */
25MODULE_ALIAS("of:Ni2sTi2sC");
26
27static struct of_device_id i2sbus_match[] = {
28 { .name = "i2s" },
29 { }
30};
31
32static int alloc_dbdma_descriptor_ring(struct i2sbus_dev *i2sdev,
33 struct dbdma_command_mem *r,
34 int numcmds)
35{
36 /* one more for rounding */
37 r->size = (numcmds+1) * sizeof(struct dbdma_cmd);
38 /* We use the PCI APIs for now until the generic one gets fixed
39 * enough or until we get some macio-specific versions
40 */
41 r->space = dma_alloc_coherent(
42 &macio_get_pci_dev(i2sdev->macio)->dev,
43 r->size,
44 &r->bus_addr,
45 GFP_KERNEL);
46
47 if (!r->space) return -ENOMEM;
48
49 memset(r->space, 0, r->size);
50 r->cmds = (void*)DBDMA_ALIGN(r->space);
51 r->bus_cmd_start = r->bus_addr +
52 (dma_addr_t)((char*)r->cmds - (char*)r->space);
53
54 return 0;
55}
56
57static void free_dbdma_descriptor_ring(struct i2sbus_dev *i2sdev,
58 struct dbdma_command_mem *r)
59{
60 if (!r->space) return;
61
62 dma_free_coherent(&macio_get_pci_dev(i2sdev->macio)->dev,
63 r->size, r->space, r->bus_addr);
64}
65
66static void i2sbus_release_dev(struct device *dev)
67{
68 struct i2sbus_dev *i2sdev;
69 int i;
70
71 i2sdev = container_of(dev, struct i2sbus_dev, sound.ofdev.dev);
72
73 if (i2sdev->intfregs) iounmap(i2sdev->intfregs);
74 if (i2sdev->out.dbdma) iounmap(i2sdev->out.dbdma);
75 if (i2sdev->in.dbdma) iounmap(i2sdev->in.dbdma);
76 for (i=0;i<3;i++)
77 if (i2sdev->allocated_resource[i])
78 release_and_free_resource(i2sdev->allocated_resource[i]);
79 free_dbdma_descriptor_ring(i2sdev, &i2sdev->out.dbdma_ring);
80 free_dbdma_descriptor_ring(i2sdev, &i2sdev->in.dbdma_ring);
81 for (i=0;i<3;i++)
82 free_irq(i2sdev->interrupts[i], i2sdev);
83 i2sbus_control_remove_dev(i2sdev->control, i2sdev);
84 mutex_destroy(&i2sdev->lock);
85 kfree(i2sdev);
86}
87
88static irqreturn_t i2sbus_bus_intr(int irq, void *devid, struct pt_regs *regs)
89{
90 struct i2sbus_dev *dev = devid;
91 u32 intreg;
92
93 spin_lock(&dev->low_lock);
94 intreg = in_le32(&dev->intfregs->intr_ctl);
95
96 /* acknowledge interrupt reasons */
97 out_le32(&dev->intfregs->intr_ctl, intreg);
98
99 spin_unlock(&dev->low_lock);
100
101 return IRQ_HANDLED;
102}
103
104static int force;
105module_param(force, int, 0444);
106MODULE_PARM_DESC(force, "Force loading i2sbus even when"
107 " no layout-id property is present");
108
109/* FIXME: look at device node refcounting */
110static int i2sbus_add_dev(struct macio_dev *macio,
111 struct i2sbus_control *control,
112 struct device_node *np)
113{
114 struct i2sbus_dev *dev;
115 struct device_node *child = NULL, *sound = NULL;
116 int i;
117 static const char *rnames[] = { "i2sbus: %s (control)",
118 "i2sbus: %s (tx)",
119 "i2sbus: %s (rx)" };
120 static irqreturn_t (*ints[])(int irq, void *devid,
121 struct pt_regs *regs) = {
122 i2sbus_bus_intr,
123 i2sbus_tx_intr,
124 i2sbus_rx_intr
125 };
126
127 if (strlen(np->name) != 5)
128 return 0;
129 if (strncmp(np->name, "i2s-", 4))
130 return 0;
131
132 if (np->n_intrs != 3)
133 return 0;
134
135 dev = kzalloc(sizeof(struct i2sbus_dev), GFP_KERNEL);
136 if (!dev)
137 return 0;
138
139 i = 0;
140 while ((child = of_get_next_child(np, child))) {
141 if (strcmp(child->name, "sound") == 0) {
142 i++;
143 sound = child;
144 }
145 }
146 if (i == 1) {
147 u32 *layout_id;
148 layout_id = (u32*) get_property(sound, "layout-id", NULL);
149 if (layout_id) {
150 snprintf(dev->sound.modalias, 32,
151 "sound-layout-%d", *layout_id);
152 force = 1;
153 }
154 }
155 /* for the time being, until we can handle non-layout-id
156 * things in some fabric, refuse to attach if there is no
157 * layout-id property or we haven't been forced to attach.
158 * When there are two i2s busses and only one has a layout-id,
159 * then this depends on the order, but that isn't important
160 * either as the second one in that case is just a modem. */
161 if (!force) {
162 kfree(dev);
163 return -ENODEV;
164 }
165
166 mutex_init(&dev->lock);
167 spin_lock_init(&dev->low_lock);
168 dev->sound.ofdev.node = np;
169 dev->sound.ofdev.dma_mask = macio->ofdev.dma_mask;
170 dev->sound.ofdev.dev.dma_mask = &dev->sound.ofdev.dma_mask;
171 dev->sound.ofdev.dev.parent = &macio->ofdev.dev;
172 dev->sound.ofdev.dev.release = i2sbus_release_dev;
173 dev->sound.attach_codec = i2sbus_attach_codec;
174 dev->sound.detach_codec = i2sbus_detach_codec;
175 dev->sound.pcmid = -1;
176 dev->macio = macio;
177 dev->control = control;
178 dev->bus_number = np->name[4] - 'a';
179 INIT_LIST_HEAD(&dev->sound.codec_list);
180
181 for (i=0;i<3;i++) {
182 dev->interrupts[i] = -1;
183 snprintf(dev->rnames[i], sizeof(dev->rnames[i]), rnames[i], np->name);
184 }
185 for (i=0;i<3;i++) {
186 if (request_irq(np->intrs[i].line, ints[i], 0, dev->rnames[i], dev))
187 goto err;
188 dev->interrupts[i] = np->intrs[i].line;
189 }
190
191 for (i=0;i<3;i++) {
192 if (of_address_to_resource(np, i, &dev->resources[i]))
193 goto err;
194 /* if only we could use our resource dev->resources[i]...
195 * but request_resource doesn't know about parents and
196 * contained resources... */
197 dev->allocated_resource[i] =
198 request_mem_region(dev->resources[i].start,
199 dev->resources[i].end -
200 dev->resources[i].start + 1,
201 dev->rnames[i]);
202 if (!dev->allocated_resource[i]) {
203 printk(KERN_ERR "i2sbus: failed to claim resource %d!\n", i);
204 goto err;
205 }
206 }
207 /* should do sanity checking here about length of them */
208 dev->intfregs = ioremap(dev->resources[0].start,
209 dev->resources[0].end-dev->resources[0].start+1);
210 dev->out.dbdma = ioremap(dev->resources[1].start,
211 dev->resources[1].end-dev->resources[1].start+1);
212 dev->in.dbdma = ioremap(dev->resources[2].start,
213 dev->resources[2].end-dev->resources[2].start+1);
214 if (!dev->intfregs || !dev->out.dbdma || !dev->in.dbdma)
215 goto err;
216
217 if (alloc_dbdma_descriptor_ring(dev, &dev->out.dbdma_ring,
218 MAX_DBDMA_COMMANDS))
219 goto err;
220 if (alloc_dbdma_descriptor_ring(dev, &dev->in.dbdma_ring,
221 MAX_DBDMA_COMMANDS))
222 goto err;
223
224 if (i2sbus_control_add_dev(dev->control, dev)) {
225 printk(KERN_ERR "i2sbus: control layer didn't like bus\n");
226 goto err;
227 }
228
229 if (soundbus_add_one(&dev->sound)) {
230 printk(KERN_DEBUG "i2sbus: device registration error!\n");
231 goto err;
232 }
233
234 /* enable this cell */
235 i2sbus_control_cell(dev->control, dev, 1);
236 i2sbus_control_enable(dev->control, dev);
237 i2sbus_control_clock(dev->control, dev, 1);
238
239 return 1;
240 err:
241 for (i=0;i<3;i++)
242 if (dev->interrupts[i] != -1)
243 free_irq(dev->interrupts[i], dev);
244 free_dbdma_descriptor_ring(dev, &dev->out.dbdma_ring);
245 free_dbdma_descriptor_ring(dev, &dev->in.dbdma_ring);
246 if (dev->intfregs) iounmap(dev->intfregs);
247 if (dev->out.dbdma) iounmap(dev->out.dbdma);
248 if (dev->in.dbdma) iounmap(dev->in.dbdma);
249 for (i=0;i<3;i++)
250 if (dev->allocated_resource[i])
251 release_and_free_resource(dev->allocated_resource[i]);
252 mutex_destroy(&dev->lock);
253 kfree(dev);
254 return 0;
255}
256
257static int i2sbus_probe(struct macio_dev* dev, const struct of_device_id *match)
258{
259 struct device_node *np = NULL;
260 int got = 0, err;
261 struct i2sbus_control *control = NULL;
262
263 err = i2sbus_control_init(dev, &control);
264 if (err)
265 return err;
266 if (!control) {
267 printk(KERN_ERR "i2sbus_control_init API breakage\n");
268 return -ENODEV;
269 }
270
271 while ((np = of_get_next_child(dev->ofdev.node, np))) {
272 if (device_is_compatible(np, "i2sbus") ||
273 device_is_compatible(np, "i2s-modem")) {
274 got += i2sbus_add_dev(dev, control, np);
275 }
276 }
277
278 if (!got) {
279 /* found none, clean up */
280 i2sbus_control_destroy(control);
281 return -ENODEV;
282 }
283
284 dev->ofdev.dev.driver_data = control;
285
286 return 0;
287}
288
289static int i2sbus_remove(struct macio_dev* dev)
290{
291 struct i2sbus_control *control = dev->ofdev.dev.driver_data;
292 struct i2sbus_dev *i2sdev, *tmp;
293
294 list_for_each_entry_safe(i2sdev, tmp, &control->list, item)
295 soundbus_remove_one(&i2sdev->sound);
296
297 return 0;
298}
299
300#ifdef CONFIG_PM
301static int i2sbus_suspend(struct macio_dev* dev, pm_message_t state)
302{
303 struct i2sbus_control *control = dev->ofdev.dev.driver_data;
304 struct codec_info_item *cii;
305 struct i2sbus_dev* i2sdev;
306 int err, ret = 0;
307
308 list_for_each_entry(i2sdev, &control->list, item) {
309 /* Notify Alsa */
310 if (i2sdev->sound.pcm) {
311 /* Suspend PCM streams */
312 snd_pcm_suspend_all(i2sdev->sound.pcm);
313 /* Probably useless as we handle
314 * power transitions ourselves */
315 snd_power_change_state(i2sdev->sound.pcm->card,
316 SNDRV_CTL_POWER_D3hot);
317 }
318 /* Notify codecs */
319 list_for_each_entry(cii, &i2sdev->sound.codec_list, list) {
320 err = 0;
321 if (cii->codec->suspend)
322 err = cii->codec->suspend(cii, state);
323 if (err)
324 ret = err;
325 }
326 }
327 return ret;
328}
329
330static int i2sbus_resume(struct macio_dev* dev)
331{
332 struct i2sbus_control *control = dev->ofdev.dev.driver_data;
333 struct codec_info_item *cii;
334 struct i2sbus_dev* i2sdev;
335 int err, ret = 0;
336
337 list_for_each_entry(i2sdev, &control->list, item) {
338 /* Notify codecs so they can re-initialize */
339 list_for_each_entry(cii, &i2sdev->sound.codec_list, list) {
340 err = 0;
341 if (cii->codec->resume)
342 err = cii->codec->resume(cii);
343 if (err)
344 ret = err;
345 }
346 /* Notify Alsa */
347 if (i2sdev->sound.pcm) {
348 /* Same comment as above, probably useless */
349 snd_power_change_state(i2sdev->sound.pcm->card,
350 SNDRV_CTL_POWER_D0);
351 }
352 }
353
354 return ret;
355}
356#endif /* CONFIG_PM */
357
358static int i2sbus_shutdown(struct macio_dev* dev)
359{
360 return 0;
361}
362
363static struct macio_driver i2sbus_drv = {
364 .name = "soundbus-i2s",
365 .owner = THIS_MODULE,
366 .match_table = i2sbus_match,
367 .probe = i2sbus_probe,
368 .remove = i2sbus_remove,
369#ifdef CONFIG_PM
370 .suspend = i2sbus_suspend,
371 .resume = i2sbus_resume,
372#endif
373 .shutdown = i2sbus_shutdown,
374};
375
376static int __init soundbus_i2sbus_init(void)
377{
378 return macio_register_driver(&i2sbus_drv);
379}
380
381static void __exit soundbus_i2sbus_exit(void)
382{
383 macio_unregister_driver(&i2sbus_drv);
384}
385
386module_init(soundbus_i2sbus_init);
387module_exit(soundbus_i2sbus_exit);
diff --git a/sound/aoa/soundbus/i2sbus/i2sbus-interface.h b/sound/aoa/soundbus/i2sbus/i2sbus-interface.h
new file mode 100644
index 000000000000..c6b5f5452d20
--- /dev/null
+++ b/sound/aoa/soundbus/i2sbus/i2sbus-interface.h
@@ -0,0 +1,187 @@
1/*
2 * i2sbus driver -- interface register definitions
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8#ifndef __I2SBUS_INTERFACE_H
9#define __I2SBUS_INTERFACE_H
10
11/* i2s bus control registers, at least what we know about them */
12
13#define __PAD(m,n) u8 __pad##m[n]
14#define _PAD(line, n) __PAD(line, n)
15#define PAD(n) _PAD(__LINE__, (n))
16struct i2s_interface_regs {
17 __le32 intr_ctl; /* 0x00 */
18 PAD(12);
19 __le32 serial_format; /* 0x10 */
20 PAD(12);
21 __le32 codec_msg_out; /* 0x20 */
22 PAD(12);
23 __le32 codec_msg_in; /* 0x30 */
24 PAD(12);
25 __le32 frame_count; /* 0x40 */
26 PAD(12);
27 __le32 frame_match; /* 0x50 */
28 PAD(12);
29 __le32 data_word_sizes; /* 0x60 */
30 PAD(12);
31 __le32 peak_level_sel; /* 0x70 */
32 PAD(12);
33 __le32 peak_level_in0; /* 0x80 */
34 PAD(12);
35 __le32 peak_level_in1; /* 0x90 */
36 PAD(12);
37 /* total size: 0x100 bytes */
38} __attribute__((__packed__));
39
40/* interrupt register is just a bitfield with
41 * interrupt enable and pending bits */
42#define I2S_REG_INTR_CTL 0x00
43# define I2S_INT_FRAME_COUNT (1<<31)
44# define I2S_PENDING_FRAME_COUNT (1<<30)
45# define I2S_INT_MESSAGE_FLAG (1<<29)
46# define I2S_PENDING_MESSAGE_FLAG (1<<28)
47# define I2S_INT_NEW_PEAK (1<<27)
48# define I2S_PENDING_NEW_PEAK (1<<26)
49# define I2S_INT_CLOCKS_STOPPED (1<<25)
50# define I2S_PENDING_CLOCKS_STOPPED (1<<24)
51# define I2S_INT_EXTERNAL_SYNC_ERROR (1<<23)
52# define I2S_PENDING_EXTERNAL_SYNC_ERROR (1<<22)
53# define I2S_INT_EXTERNAL_SYNC_OK (1<<21)
54# define I2S_PENDING_EXTERNAL_SYNC_OK (1<<20)
55# define I2S_INT_NEW_SAMPLE_RATE (1<<19)
56# define I2S_PENDING_NEW_SAMPLE_RATE (1<<18)
57# define I2S_INT_STATUS_FLAG (1<<17)
58# define I2S_PENDING_STATUS_FLAG (1<<16)
59
60/* serial format register is more interesting :)
61 * It contains:
62 * - clock source
63 * - MClk divisor
64 * - SClk divisor
65 * - SClk master flag
66 * - serial format (sony, i2s 64x, i2s 32x, dav, silabs)
67 * - external sample frequency interrupt (don't understand)
68 * - external sample frequency
69 */
70#define I2S_REG_SERIAL_FORMAT 0x10
71/* clock source. You get either 18.432, 45.1584 or 49.1520 MHz */
72# define I2S_SF_CLOCK_SOURCE_SHIFT 30
73# define I2S_SF_CLOCK_SOURCE_MASK (3<<I2S_SF_CLOCK_SOURCE_SHIFT)
74# define I2S_SF_CLOCK_SOURCE_18MHz (0<<I2S_SF_CLOCK_SOURCE_SHIFT)
75# define I2S_SF_CLOCK_SOURCE_45MHz (1<<I2S_SF_CLOCK_SOURCE_SHIFT)
76# define I2S_SF_CLOCK_SOURCE_49MHz (2<<I2S_SF_CLOCK_SOURCE_SHIFT)
77/* also, let's define the exact clock speeds here, in Hz */
78#define I2S_CLOCK_SPEED_18MHz 18432000
79#define I2S_CLOCK_SPEED_45MHz 45158400
80#define I2S_CLOCK_SPEED_49MHz 49152000
81/* MClk is the clock that drives the codec, usually called its 'system clock'.
82 * It is derived by taking only every 'divisor' tick of the clock.
83 */
84# define I2S_SF_MCLKDIV_SHIFT 24
85# define I2S_SF_MCLKDIV_MASK (0x1F<<I2S_SF_MCLKDIV_SHIFT)
86# define I2S_SF_MCLKDIV_1 (0x14<<I2S_SF_MCLKDIV_SHIFT)
87# define I2S_SF_MCLKDIV_3 (0x13<<I2S_SF_MCLKDIV_SHIFT)
88# define I2S_SF_MCLKDIV_5 (0x12<<I2S_SF_MCLKDIV_SHIFT)
89# define I2S_SF_MCLKDIV_14 (0x0E<<I2S_SF_MCLKDIV_SHIFT)
90# define I2S_SF_MCLKDIV_OTHER(div) (((div/2-1)<<I2S_SF_MCLKDIV_SHIFT)&I2S_SF_MCLKDIV_MASK)
91static inline int i2s_sf_mclkdiv(int div, int *out)
92{
93 int d;
94
95 switch(div) {
96 case 1: *out |= I2S_SF_MCLKDIV_1; return 0;
97 case 3: *out |= I2S_SF_MCLKDIV_3; return 0;
98 case 5: *out |= I2S_SF_MCLKDIV_5; return 0;
99 case 14: *out |= I2S_SF_MCLKDIV_14; return 0;
100 default:
101 if (div%2) return -1;
102 d = div/2-1;
103 if (d == 0x14 || d == 0x13 || d == 0x12 || d == 0x0E)
104 return -1;
105 *out |= I2S_SF_MCLKDIV_OTHER(div);
106 return 0;
107 }
108}
109/* SClk is the clock that drives the i2s wire bus. Note that it is
110 * derived from the MClk above by taking only every 'divisor' tick
111 * of MClk.
112 */
113# define I2S_SF_SCLKDIV_SHIFT 20
114# define I2S_SF_SCLKDIV_MASK (0xF<<I2S_SF_SCLKDIV_SHIFT)
115# define I2S_SF_SCLKDIV_1 (8<<I2S_SF_SCLKDIV_SHIFT)
116# define I2S_SF_SCLKDIV_3 (9<<I2S_SF_SCLKDIV_SHIFT)
117# define I2S_SF_SCLKDIV_OTHER(div) (((div/2-1)<<I2S_SF_SCLKDIV_SHIFT)&I2S_SF_SCLKDIV_MASK)
118static inline int i2s_sf_sclkdiv(int div, int *out)
119{
120 int d;
121
122 switch(div) {
123 case 1: *out |= I2S_SF_SCLKDIV_1; return 0;
124 case 3: *out |= I2S_SF_SCLKDIV_3; return 0;
125 default:
126 if (div%2) return -1;
127 d = div/2-1;
128 if (d == 8 || d == 9) return -1;
129 *out |= I2S_SF_SCLKDIV_OTHER(div);
130 return 0;
131 }
132}
133# define I2S_SF_SCLK_MASTER (1<<19)
134/* serial format is the way the data is put to the i2s wire bus */
135# define I2S_SF_SERIAL_FORMAT_SHIFT 16
136# define I2S_SF_SERIAL_FORMAT_MASK (7<<I2S_SF_SERIAL_FORMAT_SHIFT)
137# define I2S_SF_SERIAL_FORMAT_SONY (0<<I2S_SF_SERIAL_FORMAT_SHIFT)
138# define I2S_SF_SERIAL_FORMAT_I2S_64X (1<<I2S_SF_SERIAL_FORMAT_SHIFT)
139# define I2S_SF_SERIAL_FORMAT_I2S_32X (2<<I2S_SF_SERIAL_FORMAT_SHIFT)
140# define I2S_SF_SERIAL_FORMAT_I2S_DAV (4<<I2S_SF_SERIAL_FORMAT_SHIFT)
141# define I2S_SF_SERIAL_FORMAT_I2S_SILABS (5<<I2S_SF_SERIAL_FORMAT_SHIFT)
142/* unknown */
143# define I2S_SF_EXT_SAMPLE_FREQ_INT_SHIFT 12
144# define I2S_SF_EXT_SAMPLE_FREQ_INT_MASK (0xF<<I2S_SF_SAMPLE_FREQ_INT_SHIFT)
145/* probably gives external frequency? */
146# define I2S_SF_EXT_SAMPLE_FREQ_MASK 0xFFF
147
148/* used to send codec messages, but how isn't clear */
149#define I2S_REG_CODEC_MSG_OUT 0x20
150
151/* used to receive codec messages, but how isn't clear */
152#define I2S_REG_CODEC_MSG_IN 0x30
153
154/* frame count reg isn't clear to me yet, but probably useful */
155#define I2S_REG_FRAME_COUNT 0x40
156
157/* program to some value, and get interrupt if frame count reaches it */
158#define I2S_REG_FRAME_MATCH 0x50
159
160/* this register describes how the bus transfers data */
161#define I2S_REG_DATA_WORD_SIZES 0x60
162/* number of interleaved input channels */
163# define I2S_DWS_NUM_CHANNELS_IN_SHIFT 24
164# define I2S_DWS_NUM_CHANNELS_IN_MASK (0x1F<<I2S_DWS_NUM_CHANNELS_IN_SHIFT)
165/* word size of input data */
166# define I2S_DWS_DATA_IN_SIZE_SHIFT 16
167# define I2S_DWS_DATA_IN_16BIT (0<<I2S_DWS_DATA_IN_SIZE_SHIFT)
168# define I2S_DWS_DATA_IN_24BIT (3<<I2S_DWS_DATA_IN_SIZE_SHIFT)
169/* number of interleaved output channels */
170# define I2S_DWS_NUM_CHANNELS_OUT_SHIFT 8
171# define I2S_DWS_NUM_CHANNELS_OUT_MASK (0x1F<<I2S_DWS_NUM_CHANNELS_OUT_SHIFT)
172/* word size of output data */
173# define I2S_DWS_DATA_OUT_SIZE_SHIFT 0
174# define I2S_DWS_DATA_OUT_16BIT (0<<I2S_DWS_DATA_OUT_SIZE_SHIFT)
175# define I2S_DWS_DATA_OUT_24BIT (3<<I2S_DWS_DATA_OUT_SIZE_SHIFT)
176
177
178/* unknown */
179#define I2S_REG_PEAK_LEVEL_SEL 0x70
180
181/* unknown */
182#define I2S_REG_PEAK_LEVEL_IN0 0x80
183
184/* unknown */
185#define I2S_REG_PEAK_LEVEL_IN1 0x90
186
187#endif /* __I2SBUS_INTERFACE_H */
diff --git a/sound/aoa/soundbus/i2sbus/i2sbus-pcm.c b/sound/aoa/soundbus/i2sbus/i2sbus-pcm.c
new file mode 100644
index 000000000000..3049015a04f1
--- /dev/null
+++ b/sound/aoa/soundbus/i2sbus/i2sbus-pcm.c
@@ -0,0 +1,1021 @@
1/*
2 * i2sbus driver -- pcm routines
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8
9#include <asm/io.h>
10#include <linux/delay.h>
11/* So apparently there's a reason for requiring driver.h
12 * to be included first, even if I don't know it... */
13#include <sound/driver.h>
14#include <sound/core.h>
15#include <asm/macio.h>
16#include <linux/pci.h>
17#include "../soundbus.h"
18#include "i2sbus.h"
19
20static inline void get_pcm_info(struct i2sbus_dev *i2sdev, int in,
21 struct pcm_info **pi, struct pcm_info **other)
22{
23 if (in) {
24 if (pi)
25 *pi = &i2sdev->in;
26 if (other)
27 *other = &i2sdev->out;
28 } else {
29 if (pi)
30 *pi = &i2sdev->out;
31 if (other)
32 *other = &i2sdev->in;
33 }
34}
35
36static int clock_and_divisors(int mclk, int sclk, int rate, int *out)
37{
38 /* sclk must be derived from mclk! */
39 if (mclk % sclk)
40 return -1;
41 /* derive sclk register value */
42 if (i2s_sf_sclkdiv(mclk / sclk, out))
43 return -1;
44
45 if (I2S_CLOCK_SPEED_18MHz % (rate * mclk) == 0) {
46 if (!i2s_sf_mclkdiv(I2S_CLOCK_SPEED_18MHz / (rate * mclk), out)) {
47 *out |= I2S_SF_CLOCK_SOURCE_18MHz;
48 return 0;
49 }
50 }
51 if (I2S_CLOCK_SPEED_45MHz % (rate * mclk) == 0) {
52 if (!i2s_sf_mclkdiv(I2S_CLOCK_SPEED_45MHz / (rate * mclk), out)) {
53 *out |= I2S_SF_CLOCK_SOURCE_45MHz;
54 return 0;
55 }
56 }
57 if (I2S_CLOCK_SPEED_49MHz % (rate * mclk) == 0) {
58 if (!i2s_sf_mclkdiv(I2S_CLOCK_SPEED_49MHz / (rate * mclk), out)) {
59 *out |= I2S_SF_CLOCK_SOURCE_49MHz;
60 return 0;
61 }
62 }
63 return -1;
64}
65
66#define CHECK_RATE(rate) \
67 do { if (rates & SNDRV_PCM_RATE_ ##rate) { \
68 int dummy; \
69 if (clock_and_divisors(sysclock_factor, \
70 bus_factor, rate, &dummy)) \
71 rates &= ~SNDRV_PCM_RATE_ ##rate; \
72 } } while (0)
73
74static int i2sbus_pcm_open(struct i2sbus_dev *i2sdev, int in)
75{
76 struct pcm_info *pi, *other;
77 struct soundbus_dev *sdev;
78 int masks_inited = 0, err;
79 struct codec_info_item *cii, *rev;
80 struct snd_pcm_hardware *hw;
81 u64 formats = 0;
82 unsigned int rates = 0;
83 struct transfer_info v;
84 int result = 0;
85 int bus_factor = 0, sysclock_factor = 0;
86 int found_this;
87
88 mutex_lock(&i2sdev->lock);
89
90 get_pcm_info(i2sdev, in, &pi, &other);
91
92 hw = &pi->substream->runtime->hw;
93 sdev = &i2sdev->sound;
94
95 if (pi->active) {
96 /* alsa messed up */
97 result = -EBUSY;
98 goto out_unlock;
99 }
100
101 /* we now need to assign the hw */
102 list_for_each_entry(cii, &sdev->codec_list, list) {
103 struct transfer_info *ti = cii->codec->transfers;
104 bus_factor = cii->codec->bus_factor;
105 sysclock_factor = cii->codec->sysclock_factor;
106 while (ti->formats && ti->rates) {
107 v = *ti;
108 if (ti->transfer_in == in
109 && cii->codec->usable(cii, ti, &v)) {
110 if (masks_inited) {
111 formats &= v.formats;
112 rates &= v.rates;
113 } else {
114 formats = v.formats;
115 rates = v.rates;
116 masks_inited = 1;
117 }
118 }
119 ti++;
120 }
121 }
122 if (!masks_inited || !bus_factor || !sysclock_factor) {
123 result = -ENODEV;
124 goto out_unlock;
125 }
126 /* bus dependent stuff */
127 hw->info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
128 SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_RESUME;
129
130 CHECK_RATE(5512);
131 CHECK_RATE(8000);
132 CHECK_RATE(11025);
133 CHECK_RATE(16000);
134 CHECK_RATE(22050);
135 CHECK_RATE(32000);
136 CHECK_RATE(44100);
137 CHECK_RATE(48000);
138 CHECK_RATE(64000);
139 CHECK_RATE(88200);
140 CHECK_RATE(96000);
141 CHECK_RATE(176400);
142 CHECK_RATE(192000);
143 hw->rates = rates;
144
145 /* well. the codec might want 24 bits only, and we'll
146 * ever only transfer 24 bits, but they are top-aligned!
147 * So for alsa, we claim that we're doing full 32 bit
148 * while in reality we'll ignore the lower 8 bits of
149 * that when doing playback (they're transferred as 0
150 * as far as I know, no codecs we have are 32-bit capable
151 * so I can't really test) and when doing recording we'll
152 * always have those lower 8 bits recorded as 0 */
153 if (formats & SNDRV_PCM_FMTBIT_S24_BE)
154 formats |= SNDRV_PCM_FMTBIT_S32_BE;
155 if (formats & SNDRV_PCM_FMTBIT_U24_BE)
156 formats |= SNDRV_PCM_FMTBIT_U32_BE;
157 /* now mask off what we can support. I suppose we could
158 * also support S24_3LE and some similar formats, but I
159 * doubt there's a codec that would be able to use that,
160 * so we don't support it here. */
161 hw->formats = formats & (SNDRV_PCM_FMTBIT_S16_BE |
162 SNDRV_PCM_FMTBIT_U16_BE |
163 SNDRV_PCM_FMTBIT_S32_BE |
164 SNDRV_PCM_FMTBIT_U32_BE);
165
166 /* we need to set the highest and lowest rate possible.
167 * These are the highest and lowest rates alsa can
168 * support properly in its bitfield.
169 * Below, we'll use that to restrict to the rate
170 * currently in use (if any). */
171 hw->rate_min = 5512;
172 hw->rate_max = 192000;
173 /* if the other stream is active, then we can only
174 * support what it is currently using.
175 * FIXME: I lied. This comment is wrong. We can support
176 * anything that works with the same serial format, ie.
177 * when recording 24 bit sound we can well play 16 bit
178 * sound at the same time iff using the same transfer mode.
179 */
180 if (other->active) {
181 /* FIXME: is this guaranteed by the alsa api? */
182 hw->formats &= (1ULL << i2sdev->format);
183 /* see above, restrict rates to the one we already have */
184 hw->rate_min = i2sdev->rate;
185 hw->rate_max = i2sdev->rate;
186 }
187
188 hw->channels_min = 2;
189 hw->channels_max = 2;
190 /* these are somewhat arbitrary */
191 hw->buffer_bytes_max = 131072;
192 hw->period_bytes_min = 256;
193 hw->period_bytes_max = 16384;
194 hw->periods_min = 3;
195 hw->periods_max = MAX_DBDMA_COMMANDS;
196 list_for_each_entry(cii, &sdev->codec_list, list) {
197 if (cii->codec->open) {
198 err = cii->codec->open(cii, pi->substream);
199 if (err) {
200 result = err;
201 /* unwind */
202 found_this = 0;
203 list_for_each_entry_reverse(rev,
204 &sdev->codec_list, list) {
205 if (found_this && rev->codec->close) {
206 rev->codec->close(rev,
207 pi->substream);
208 }
209 if (rev == cii)
210 found_this = 1;
211 }
212 goto out_unlock;
213 }
214 }
215 }
216
217 out_unlock:
218 mutex_unlock(&i2sdev->lock);
219 return result;
220}
221
222#undef CHECK_RATE
223
224static int i2sbus_pcm_close(struct i2sbus_dev *i2sdev, int in)
225{
226 struct codec_info_item *cii;
227 struct pcm_info *pi;
228 int err = 0, tmp;
229
230 mutex_lock(&i2sdev->lock);
231
232 get_pcm_info(i2sdev, in, &pi, NULL);
233
234 list_for_each_entry(cii, &i2sdev->sound.codec_list, list) {
235 if (cii->codec->close) {
236 tmp = cii->codec->close(cii, pi->substream);
237 if (tmp)
238 err = tmp;
239 }
240 }
241
242 pi->substream = NULL;
243 pi->active = 0;
244 mutex_unlock(&i2sdev->lock);
245 return err;
246}
247
248static int i2sbus_hw_params(struct snd_pcm_substream *substream,
249 struct snd_pcm_hw_params *params)
250{
251 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
252}
253
254static int i2sbus_hw_free(struct snd_pcm_substream *substream)
255{
256 snd_pcm_lib_free_pages(substream);
257 return 0;
258}
259
260static int i2sbus_pcm_prepare(struct i2sbus_dev *i2sdev, int in)
261{
262 /* whee. Hard work now. The user has selected a bitrate
263 * and bit format, so now we have to program our
264 * I2S controller appropriately. */
265 struct snd_pcm_runtime *runtime;
266 struct dbdma_cmd *command;
267 int i, periodsize;
268 dma_addr_t offset;
269 struct bus_info bi;
270 struct codec_info_item *cii;
271 int sfr = 0; /* serial format register */
272 int dws = 0; /* data word sizes reg */
273 int input_16bit;
274 struct pcm_info *pi, *other;
275 int cnt;
276 int result = 0;
277
278 mutex_lock(&i2sdev->lock);
279
280 get_pcm_info(i2sdev, in, &pi, &other);
281
282 if (pi->dbdma_ring.running) {
283 result = -EBUSY;
284 goto out_unlock;
285 }
286
287 runtime = pi->substream->runtime;
288 pi->active = 1;
289 if (other->active &&
290 ((i2sdev->format != runtime->format)
291 || (i2sdev->rate != runtime->rate))) {
292 result = -EINVAL;
293 goto out_unlock;
294 }
295
296 i2sdev->format = runtime->format;
297 i2sdev->rate = runtime->rate;
298
299 periodsize = snd_pcm_lib_period_bytes(pi->substream);
300 pi->current_period = 0;
301
302 /* generate dbdma command ring first */
303 command = pi->dbdma_ring.cmds;
304 offset = runtime->dma_addr;
305 for (i = 0; i < pi->substream->runtime->periods;
306 i++, command++, offset += periodsize) {
307 memset(command, 0, sizeof(struct dbdma_cmd));
308 command->command =
309 cpu_to_le16((in ? INPUT_MORE : OUTPUT_MORE) | INTR_ALWAYS);
310 command->phy_addr = cpu_to_le32(offset);
311 command->req_count = cpu_to_le16(periodsize);
312 command->xfer_status = cpu_to_le16(0);
313 }
314 /* last one branches back to first */
315 command--;
316 command->command |= cpu_to_le16(BR_ALWAYS);
317 command->cmd_dep = cpu_to_le32(pi->dbdma_ring.bus_cmd_start);
318
319 /* ok, let's set the serial format and stuff */
320 switch (runtime->format) {
321 /* 16 bit formats */
322 case SNDRV_PCM_FORMAT_S16_BE:
323 case SNDRV_PCM_FORMAT_U16_BE:
324 /* FIXME: if we add different bus factors we need to
325 * do more here!! */
326 bi.bus_factor = 0;
327 list_for_each_entry(cii, &i2sdev->sound.codec_list, list) {
328 bi.bus_factor = cii->codec->bus_factor;
329 break;
330 }
331 if (!bi.bus_factor) {
332 result = -ENODEV;
333 goto out_unlock;
334 }
335 input_16bit = 1;
336 break;
337 case SNDRV_PCM_FORMAT_S32_BE:
338 case SNDRV_PCM_FORMAT_U32_BE:
339 /* force 64x bus speed, otherwise the data cannot be
340 * transferred quickly enough! */
341 bi.bus_factor = 64;
342 input_16bit = 0;
343 break;
344 default:
345 result = -EINVAL;
346 goto out_unlock;
347 }
348 /* we assume all sysclocks are the same! */
349 list_for_each_entry(cii, &i2sdev->sound.codec_list, list) {
350 bi.sysclock_factor = cii->codec->sysclock_factor;
351 break;
352 }
353
354 if (clock_and_divisors(bi.sysclock_factor,
355 bi.bus_factor,
356 runtime->rate,
357 &sfr) < 0) {
358 result = -EINVAL;
359 goto out_unlock;
360 }
361 switch (bi.bus_factor) {
362 case 32:
363 sfr |= I2S_SF_SERIAL_FORMAT_I2S_32X;
364 break;
365 case 64:
366 sfr |= I2S_SF_SERIAL_FORMAT_I2S_64X;
367 break;
368 }
369 /* FIXME: THIS ASSUMES MASTER ALL THE TIME */
370 sfr |= I2S_SF_SCLK_MASTER;
371
372 list_for_each_entry(cii, &i2sdev->sound.codec_list, list) {
373 int err = 0;
374 if (cii->codec->prepare)
375 err = cii->codec->prepare(cii, &bi, pi->substream);
376 if (err) {
377 result = err;
378 goto out_unlock;
379 }
380 }
381 /* codecs are fine with it, so set our clocks */
382 if (input_16bit)
383 dws = (2 << I2S_DWS_NUM_CHANNELS_IN_SHIFT) |
384 (2 << I2S_DWS_NUM_CHANNELS_OUT_SHIFT) |
385 I2S_DWS_DATA_IN_16BIT | I2S_DWS_DATA_OUT_16BIT;
386 else
387 dws = (2 << I2S_DWS_NUM_CHANNELS_IN_SHIFT) |
388 (2 << I2S_DWS_NUM_CHANNELS_OUT_SHIFT) |
389 I2S_DWS_DATA_IN_24BIT | I2S_DWS_DATA_OUT_24BIT;
390
391 /* early exit if already programmed correctly */
392 /* not locking these is fine since we touch them only in this function */
393 if (in_le32(&i2sdev->intfregs->serial_format) == sfr
394 && in_le32(&i2sdev->intfregs->data_word_sizes) == dws)
395 goto out_unlock;
396
397 /* let's notify the codecs about clocks going away.
398 * For now we only do mastering on the i2s cell... */
399 list_for_each_entry(cii, &i2sdev->sound.codec_list, list)
400 if (cii->codec->switch_clock)
401 cii->codec->switch_clock(cii, CLOCK_SWITCH_PREPARE_SLAVE);
402
403 i2sbus_control_enable(i2sdev->control, i2sdev);
404 i2sbus_control_cell(i2sdev->control, i2sdev, 1);
405
406 out_le32(&i2sdev->intfregs->intr_ctl, I2S_PENDING_CLOCKS_STOPPED);
407
408 i2sbus_control_clock(i2sdev->control, i2sdev, 0);
409
410 msleep(1);
411
412 /* wait for clock stopped. This can apparently take a while... */
413 cnt = 100;
414 while (cnt-- &&
415 !(in_le32(&i2sdev->intfregs->intr_ctl) & I2S_PENDING_CLOCKS_STOPPED)) {
416 msleep(5);
417 }
418 out_le32(&i2sdev->intfregs->intr_ctl, I2S_PENDING_CLOCKS_STOPPED);
419
420 /* not locking these is fine since we touch them only in this function */
421 out_le32(&i2sdev->intfregs->serial_format, sfr);
422 out_le32(&i2sdev->intfregs->data_word_sizes, dws);
423
424 i2sbus_control_enable(i2sdev->control, i2sdev);
425 i2sbus_control_cell(i2sdev->control, i2sdev, 1);
426 i2sbus_control_clock(i2sdev->control, i2sdev, 1);
427 msleep(1);
428
429 list_for_each_entry(cii, &i2sdev->sound.codec_list, list)
430 if (cii->codec->switch_clock)
431 cii->codec->switch_clock(cii, CLOCK_SWITCH_SLAVE);
432
433 out_unlock:
434 mutex_unlock(&i2sdev->lock);
435 return result;
436}
437
438static struct dbdma_cmd STOP_CMD = {
439 .command = __constant_cpu_to_le16(DBDMA_STOP),
440};
441
442static int i2sbus_pcm_trigger(struct i2sbus_dev *i2sdev, int in, int cmd)
443{
444 struct codec_info_item *cii;
445 struct pcm_info *pi;
446 int timeout;
447 struct dbdma_cmd tmp;
448 int result = 0;
449 unsigned long flags;
450
451 spin_lock_irqsave(&i2sdev->low_lock, flags);
452
453 get_pcm_info(i2sdev, in, &pi, NULL);
454
455 switch (cmd) {
456 case SNDRV_PCM_TRIGGER_START:
457 case SNDRV_PCM_TRIGGER_RESUME:
458 if (pi->dbdma_ring.running) {
459 result = -EALREADY;
460 goto out_unlock;
461 }
462 list_for_each_entry(cii, &i2sdev->sound.codec_list, list)
463 if (cii->codec->start)
464 cii->codec->start(cii, pi->substream);
465 pi->dbdma_ring.running = 1;
466
467 /* reset dma engine */
468 out_le32(&pi->dbdma->control,
469 0 | (RUN | PAUSE | FLUSH | WAKE) << 16);
470 timeout = 100;
471 while (in_le32(&pi->dbdma->status) & RUN && timeout--)
472 udelay(1);
473 if (timeout <= 0) {
474 printk(KERN_ERR
475 "i2sbus: error waiting for dma reset\n");
476 result = -ENXIO;
477 goto out_unlock;
478 }
479
480 /* write dma command buffer address to the dbdma chip */
481 out_le32(&pi->dbdma->cmdptr, pi->dbdma_ring.bus_cmd_start);
482 /* post PCI write */
483 mb();
484 (void)in_le32(&pi->dbdma->status);
485
486 /* change first command to STOP */
487 tmp = *pi->dbdma_ring.cmds;
488 *pi->dbdma_ring.cmds = STOP_CMD;
489
490 /* set running state, remember that the first command is STOP */
491 out_le32(&pi->dbdma->control, RUN | (RUN << 16));
492 timeout = 100;
493 /* wait for STOP to be executed */
494 while (in_le32(&pi->dbdma->status) & ACTIVE && timeout--)
495 udelay(1);
496 if (timeout <= 0) {
497 printk(KERN_ERR "i2sbus: error waiting for dma stop\n");
498 result = -ENXIO;
499 goto out_unlock;
500 }
501 /* again, write dma command buffer address to the dbdma chip,
502 * this time of the first real command */
503 *pi->dbdma_ring.cmds = tmp;
504 out_le32(&pi->dbdma->cmdptr, pi->dbdma_ring.bus_cmd_start);
505 /* post write */
506 mb();
507 (void)in_le32(&pi->dbdma->status);
508
509 /* reset dma engine again */
510 out_le32(&pi->dbdma->control,
511 0 | (RUN | PAUSE | FLUSH | WAKE) << 16);
512 timeout = 100;
513 while (in_le32(&pi->dbdma->status) & RUN && timeout--)
514 udelay(1);
515 if (timeout <= 0) {
516 printk(KERN_ERR
517 "i2sbus: error waiting for dma reset\n");
518 result = -ENXIO;
519 goto out_unlock;
520 }
521
522 /* wake up the chip with the next descriptor */
523 out_le32(&pi->dbdma->control,
524 (RUN | WAKE) | ((RUN | WAKE) << 16));
525 /* get the frame count */
526 pi->frame_count = in_le32(&i2sdev->intfregs->frame_count);
527
528 /* off you go! */
529 break;
530 case SNDRV_PCM_TRIGGER_STOP:
531 case SNDRV_PCM_TRIGGER_SUSPEND:
532 if (!pi->dbdma_ring.running) {
533 result = -EALREADY;
534 goto out_unlock;
535 }
536
537 /* turn off all relevant bits */
538 out_le32(&pi->dbdma->control,
539 (RUN | WAKE | FLUSH | PAUSE) << 16);
540 {
541 /* FIXME: move to own function */
542 int timeout = 5000;
543 while ((in_le32(&pi->dbdma->status) & RUN)
544 && --timeout > 0)
545 udelay(1);
546 if (!timeout)
547 printk(KERN_ERR
548 "i2sbus: timed out turning "
549 "off dbdma engine!\n");
550 }
551
552 pi->dbdma_ring.running = 0;
553 list_for_each_entry(cii, &i2sdev->sound.codec_list, list)
554 if (cii->codec->stop)
555 cii->codec->stop(cii, pi->substream);
556 break;
557 default:
558 result = -EINVAL;
559 goto out_unlock;
560 }
561
562 out_unlock:
563 spin_unlock_irqrestore(&i2sdev->low_lock, flags);
564 return result;
565}
566
567static snd_pcm_uframes_t i2sbus_pcm_pointer(struct i2sbus_dev *i2sdev, int in)
568{
569 struct pcm_info *pi;
570 u32 fc;
571
572 get_pcm_info(i2sdev, in, &pi, NULL);
573
574 fc = in_le32(&i2sdev->intfregs->frame_count);
575 fc = fc - pi->frame_count;
576
577 return (bytes_to_frames(pi->substream->runtime,
578 pi->current_period *
579 snd_pcm_lib_period_bytes(pi->substream))
580 + fc) % pi->substream->runtime->buffer_size;
581}
582
583static inline void handle_interrupt(struct i2sbus_dev *i2sdev, int in)
584{
585 struct pcm_info *pi;
586 u32 fc;
587 u32 delta;
588
589 spin_lock(&i2sdev->low_lock);
590 get_pcm_info(i2sdev, in, &pi, NULL);
591
592 if (!pi->dbdma_ring.running) {
593 /* there was still an interrupt pending
594 * while we stopped. or maybe another
595 * processor (not the one that was stopping
596 * the DMA engine) was spinning above
597 * waiting for the lock. */
598 goto out_unlock;
599 }
600
601 fc = in_le32(&i2sdev->intfregs->frame_count);
602 /* a counter overflow does not change the calculation. */
603 delta = fc - pi->frame_count;
604
605 /* update current_period */
606 while (delta >= pi->substream->runtime->period_size) {
607 pi->current_period++;
608 delta = delta - pi->substream->runtime->period_size;
609 }
610
611 if (unlikely(delta)) {
612 /* Some interrupt came late, so check the dbdma.
613 * This special case exists to syncronize the frame_count with
614 * the dbdma transfer, but is hit every once in a while. */
615 int period;
616
617 period = (in_le32(&pi->dbdma->cmdptr)
618 - pi->dbdma_ring.bus_cmd_start)
619 / sizeof(struct dbdma_cmd);
620 pi->current_period = pi->current_period
621 % pi->substream->runtime->periods;
622
623 while (pi->current_period != period) {
624 pi->current_period++;
625 pi->current_period %= pi->substream->runtime->periods;
626 /* Set delta to zero, as the frame_count value is too
627 * high (otherwise the code path will not be executed).
628 * This corrects the fact that the frame_count is too
629 * low at the beginning due to buffering. */
630 delta = 0;
631 }
632 }
633
634 pi->frame_count = fc - delta;
635 pi->current_period %= pi->substream->runtime->periods;
636
637 spin_unlock(&i2sdev->low_lock);
638 /* may call _trigger again, hence needs to be unlocked */
639 snd_pcm_period_elapsed(pi->substream);
640 return;
641 out_unlock:
642 spin_unlock(&i2sdev->low_lock);
643}
644
645irqreturn_t i2sbus_tx_intr(int irq, void *devid, struct pt_regs *regs)
646{
647 handle_interrupt((struct i2sbus_dev *)devid, 0);
648 return IRQ_HANDLED;
649}
650
651irqreturn_t i2sbus_rx_intr(int irq, void *devid, struct pt_regs * regs)
652{
653 handle_interrupt((struct i2sbus_dev *)devid, 1);
654 return IRQ_HANDLED;
655}
656
657static int i2sbus_playback_open(struct snd_pcm_substream *substream)
658{
659 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
660
661 if (!i2sdev)
662 return -EINVAL;
663 i2sdev->out.substream = substream;
664 return i2sbus_pcm_open(i2sdev, 0);
665}
666
667static int i2sbus_playback_close(struct snd_pcm_substream *substream)
668{
669 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
670 int err;
671
672 if (!i2sdev)
673 return -EINVAL;
674 if (i2sdev->out.substream != substream)
675 return -EINVAL;
676 err = i2sbus_pcm_close(i2sdev, 0);
677 if (!err)
678 i2sdev->out.substream = NULL;
679 return err;
680}
681
682static int i2sbus_playback_prepare(struct snd_pcm_substream *substream)
683{
684 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
685
686 if (!i2sdev)
687 return -EINVAL;
688 if (i2sdev->out.substream != substream)
689 return -EINVAL;
690 return i2sbus_pcm_prepare(i2sdev, 0);
691}
692
693static int i2sbus_playback_trigger(struct snd_pcm_substream *substream, int cmd)
694{
695 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
696
697 if (!i2sdev)
698 return -EINVAL;
699 if (i2sdev->out.substream != substream)
700 return -EINVAL;
701 return i2sbus_pcm_trigger(i2sdev, 0, cmd);
702}
703
704static snd_pcm_uframes_t i2sbus_playback_pointer(struct snd_pcm_substream
705 *substream)
706{
707 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
708
709 if (!i2sdev)
710 return -EINVAL;
711 if (i2sdev->out.substream != substream)
712 return 0;
713 return i2sbus_pcm_pointer(i2sdev, 0);
714}
715
716static struct snd_pcm_ops i2sbus_playback_ops = {
717 .open = i2sbus_playback_open,
718 .close = i2sbus_playback_close,
719 .ioctl = snd_pcm_lib_ioctl,
720 .hw_params = i2sbus_hw_params,
721 .hw_free = i2sbus_hw_free,
722 .prepare = i2sbus_playback_prepare,
723 .trigger = i2sbus_playback_trigger,
724 .pointer = i2sbus_playback_pointer,
725};
726
727static int i2sbus_record_open(struct snd_pcm_substream *substream)
728{
729 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
730
731 if (!i2sdev)
732 return -EINVAL;
733 i2sdev->in.substream = substream;
734 return i2sbus_pcm_open(i2sdev, 1);
735}
736
737static int i2sbus_record_close(struct snd_pcm_substream *substream)
738{
739 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
740 int err;
741
742 if (!i2sdev)
743 return -EINVAL;
744 if (i2sdev->in.substream != substream)
745 return -EINVAL;
746 err = i2sbus_pcm_close(i2sdev, 1);
747 if (!err)
748 i2sdev->in.substream = NULL;
749 return err;
750}
751
752static int i2sbus_record_prepare(struct snd_pcm_substream *substream)
753{
754 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
755
756 if (!i2sdev)
757 return -EINVAL;
758 if (i2sdev->in.substream != substream)
759 return -EINVAL;
760 return i2sbus_pcm_prepare(i2sdev, 1);
761}
762
763static int i2sbus_record_trigger(struct snd_pcm_substream *substream, int cmd)
764{
765 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
766
767 if (!i2sdev)
768 return -EINVAL;
769 if (i2sdev->in.substream != substream)
770 return -EINVAL;
771 return i2sbus_pcm_trigger(i2sdev, 1, cmd);
772}
773
774static snd_pcm_uframes_t i2sbus_record_pointer(struct snd_pcm_substream
775 *substream)
776{
777 struct i2sbus_dev *i2sdev = snd_pcm_substream_chip(substream);
778
779 if (!i2sdev)
780 return -EINVAL;
781 if (i2sdev->in.substream != substream)
782 return 0;
783 return i2sbus_pcm_pointer(i2sdev, 1);
784}
785
786static struct snd_pcm_ops i2sbus_record_ops = {
787 .open = i2sbus_record_open,
788 .close = i2sbus_record_close,
789 .ioctl = snd_pcm_lib_ioctl,
790 .hw_params = i2sbus_hw_params,
791 .hw_free = i2sbus_hw_free,
792 .prepare = i2sbus_record_prepare,
793 .trigger = i2sbus_record_trigger,
794 .pointer = i2sbus_record_pointer,
795};
796
797static void i2sbus_private_free(struct snd_pcm *pcm)
798{
799 struct i2sbus_dev *i2sdev = snd_pcm_chip(pcm);
800 struct codec_info_item *p, *tmp;
801
802 i2sdev->sound.pcm = NULL;
803 i2sdev->out.created = 0;
804 i2sdev->in.created = 0;
805 list_for_each_entry_safe(p, tmp, &i2sdev->sound.codec_list, list) {
806 printk(KERN_ERR "i2sbus: a codec didn't unregister!\n");
807 list_del(&p->list);
808 module_put(p->codec->owner);
809 kfree(p);
810 }
811 soundbus_dev_put(&i2sdev->sound);
812 module_put(THIS_MODULE);
813}
814
815/* FIXME: this function needs an error handling strategy with labels */
816int
817i2sbus_attach_codec(struct soundbus_dev *dev, struct snd_card *card,
818 struct codec_info *ci, void *data)
819{
820 int err, in = 0, out = 0;
821 struct transfer_info *tmp;
822 struct i2sbus_dev *i2sdev = soundbus_dev_to_i2sbus_dev(dev);
823 struct codec_info_item *cii;
824
825 if (!dev->pcmname || dev->pcmid == -1) {
826 printk(KERN_ERR "i2sbus: pcm name and id must be set!\n");
827 return -EINVAL;
828 }
829
830 list_for_each_entry(cii, &dev->codec_list, list) {
831 if (cii->codec_data == data)
832 return -EALREADY;
833 }
834
835 if (!ci->transfers || !ci->transfers->formats
836 || !ci->transfers->rates || !ci->usable)
837 return -EINVAL;
838
839 /* we currently code the i2s transfer on the clock, and support only
840 * 32 and 64 */
841 if (ci->bus_factor != 32 && ci->bus_factor != 64)
842 return -EINVAL;
843
844 /* If you want to fix this, you need to keep track of what transport infos
845 * are to be used, which codecs they belong to, and then fix all the
846 * sysclock/busclock stuff above to depend on which is usable */
847 list_for_each_entry(cii, &dev->codec_list, list) {
848 if (cii->codec->sysclock_factor != ci->sysclock_factor) {
849 printk(KERN_DEBUG
850 "cannot yet handle multiple different sysclocks!\n");
851 return -EINVAL;
852 }
853 if (cii->codec->bus_factor != ci->bus_factor) {
854 printk(KERN_DEBUG
855 "cannot yet handle multiple different bus clocks!\n");
856 return -EINVAL;
857 }
858 }
859
860 tmp = ci->transfers;
861 while (tmp->formats && tmp->rates) {
862 if (tmp->transfer_in)
863 in = 1;
864 else
865 out = 1;
866 tmp++;
867 }
868
869 cii = kzalloc(sizeof(struct codec_info_item), GFP_KERNEL);
870 if (!cii) {
871 printk(KERN_DEBUG "i2sbus: failed to allocate cii\n");
872 return -ENOMEM;
873 }
874
875 /* use the private data to point to the codec info */
876 cii->sdev = soundbus_dev_get(dev);
877 cii->codec = ci;
878 cii->codec_data = data;
879
880 if (!cii->sdev) {
881 printk(KERN_DEBUG
882 "i2sbus: failed to get soundbus dev reference\n");
883 kfree(cii);
884 return -ENODEV;
885 }
886
887 if (!try_module_get(THIS_MODULE)) {
888 printk(KERN_DEBUG "i2sbus: failed to get module reference!\n");
889 soundbus_dev_put(dev);
890 kfree(cii);
891 return -EBUSY;
892 }
893
894 if (!try_module_get(ci->owner)) {
895 printk(KERN_DEBUG
896 "i2sbus: failed to get module reference to codec owner!\n");
897 module_put(THIS_MODULE);
898 soundbus_dev_put(dev);
899 kfree(cii);
900 return -EBUSY;
901 }
902
903 if (!dev->pcm) {
904 err = snd_pcm_new(card,
905 dev->pcmname,
906 dev->pcmid,
907 0,
908 0,
909 &dev->pcm);
910 if (err) {
911 printk(KERN_DEBUG "i2sbus: failed to create pcm\n");
912 kfree(cii);
913 module_put(ci->owner);
914 soundbus_dev_put(dev);
915 module_put(THIS_MODULE);
916 return err;
917 }
918 }
919
920 /* ALSA yet again sucks.
921 * If it is ever fixed, remove this line. See below. */
922 out = in = 1;
923
924 if (!i2sdev->out.created && out) {
925 if (dev->pcm->card != card) {
926 /* eh? */
927 printk(KERN_ERR
928 "Can't attach same bus to different cards!\n");
929 module_put(ci->owner);
930 kfree(cii);
931 soundbus_dev_put(dev);
932 module_put(THIS_MODULE);
933 return -EINVAL;
934 }
935 if ((err =
936 snd_pcm_new_stream(dev->pcm, SNDRV_PCM_STREAM_PLAYBACK, 1))) {
937 module_put(ci->owner);
938 kfree(cii);
939 soundbus_dev_put(dev);
940 module_put(THIS_MODULE);
941 return err;
942 }
943 snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_PLAYBACK,
944 &i2sbus_playback_ops);
945 i2sdev->out.created = 1;
946 }
947
948 if (!i2sdev->in.created && in) {
949 if (dev->pcm->card != card) {
950 printk(KERN_ERR
951 "Can't attach same bus to different cards!\n");
952 module_put(ci->owner);
953 kfree(cii);
954 soundbus_dev_put(dev);
955 module_put(THIS_MODULE);
956 return -EINVAL;
957 }
958 if ((err =
959 snd_pcm_new_stream(dev->pcm, SNDRV_PCM_STREAM_CAPTURE, 1))) {
960 module_put(ci->owner);
961 kfree(cii);
962 soundbus_dev_put(dev);
963 module_put(THIS_MODULE);
964 return err;
965 }
966 snd_pcm_set_ops(dev->pcm, SNDRV_PCM_STREAM_CAPTURE,
967 &i2sbus_record_ops);
968 i2sdev->in.created = 1;
969 }
970
971 /* so we have to register the pcm after adding any substream
972 * to it because alsa doesn't create the devices for the
973 * substreams when we add them later.
974 * Therefore, force in and out on both busses (above) and
975 * register the pcm now instead of just after creating it.
976 */
977 err = snd_device_register(card, dev->pcm);
978 if (err) {
979 printk(KERN_ERR "i2sbus: error registering new pcm\n");
980 module_put(ci->owner);
981 kfree(cii);
982 soundbus_dev_put(dev);
983 module_put(THIS_MODULE);
984 return err;
985 }
986 /* no errors any more, so let's add this to our list */
987 list_add(&cii->list, &dev->codec_list);
988
989 dev->pcm->private_data = i2sdev;
990 dev->pcm->private_free = i2sbus_private_free;
991
992 /* well, we really should support scatter/gather DMA */
993 snd_pcm_lib_preallocate_pages_for_all(
994 dev->pcm, SNDRV_DMA_TYPE_DEV,
995 snd_dma_pci_data(macio_get_pci_dev(i2sdev->macio)),
996 64 * 1024, 64 * 1024);
997
998 return 0;
999}
1000
1001void i2sbus_detach_codec(struct soundbus_dev *dev, void *data)
1002{
1003 struct codec_info_item *cii = NULL, *i;
1004
1005 list_for_each_entry(i, &dev->codec_list, list) {
1006 if (i->codec_data == data) {
1007 cii = i;
1008 break;
1009 }
1010 }
1011 if (cii) {
1012 list_del(&cii->list);
1013 module_put(cii->codec->owner);
1014 kfree(cii);
1015 }
1016 /* no more codecs, but still a pcm? */
1017 if (list_empty(&dev->codec_list) && dev->pcm) {
1018 /* the actual cleanup is done by the callback above! */
1019 snd_device_free(dev->pcm->card, dev->pcm);
1020 }
1021}
diff --git a/sound/aoa/soundbus/i2sbus/i2sbus.h b/sound/aoa/soundbus/i2sbus/i2sbus.h
new file mode 100644
index 000000000000..cfa5162e3b0f
--- /dev/null
+++ b/sound/aoa/soundbus/i2sbus/i2sbus.h
@@ -0,0 +1,112 @@
1/*
2 * i2sbus driver -- private definitions
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8#ifndef __I2SBUS_H
9#define __I2SBUS_H
10#include <asm/dbdma.h>
11#include <linux/interrupt.h>
12#include <sound/pcm.h>
13#include <linux/spinlock.h>
14#include <linux/mutex.h>
15#include <asm/prom.h>
16#include "i2sbus-interface.h"
17#include "i2sbus-control.h"
18#include "../soundbus.h"
19
20struct i2sbus_control {
21 volatile struct i2s_control_regs __iomem *controlregs;
22 struct resource rsrc;
23 struct list_head list;
24};
25
26#define MAX_DBDMA_COMMANDS 32
27
28struct dbdma_command_mem {
29 dma_addr_t bus_addr;
30 dma_addr_t bus_cmd_start;
31 struct dbdma_cmd *cmds;
32 void *space;
33 int size;
34 u32 running:1;
35};
36
37struct pcm_info {
38 u32 created:1, /* has this direction been created with alsa? */
39 active:1; /* is this stream active? */
40 /* runtime information */
41 struct snd_pcm_substream *substream;
42 int current_period;
43 u32 frame_count;
44 struct dbdma_command_mem dbdma_ring;
45 volatile struct dbdma_regs __iomem *dbdma;
46};
47
48struct i2sbus_dev {
49 struct soundbus_dev sound;
50 struct macio_dev *macio;
51 struct i2sbus_control *control;
52 volatile struct i2s_interface_regs __iomem *intfregs;
53
54 struct resource resources[3];
55 struct resource *allocated_resource[3];
56 int interrupts[3];
57 char rnames[3][32];
58
59 /* info about currently active substreams */
60 struct pcm_info out, in;
61 snd_pcm_format_t format;
62 unsigned int rate;
63
64 /* list for a single controller */
65 struct list_head item;
66 /* number of bus on controller */
67 int bus_number;
68 /* for use by control layer */
69 struct pmf_function *enable,
70 *cell_enable,
71 *cell_disable,
72 *clock_enable,
73 *clock_disable;
74
75 /* locks */
76 /* spinlock for low-level interrupt locking */
77 spinlock_t low_lock;
78 /* mutex for high-level consistency */
79 struct mutex lock;
80};
81
82#define soundbus_dev_to_i2sbus_dev(sdev) \
83 container_of(sdev, struct i2sbus_dev, sound)
84
85/* pcm specific functions */
86extern int
87i2sbus_attach_codec(struct soundbus_dev *dev, struct snd_card *card,
88 struct codec_info *ci, void *data);
89extern void
90i2sbus_detach_codec(struct soundbus_dev *dev, void *data);
91extern irqreturn_t
92i2sbus_tx_intr(int irq, void *devid, struct pt_regs *regs);
93extern irqreturn_t
94i2sbus_rx_intr(int irq, void *devid, struct pt_regs *regs);
95
96/* control specific functions */
97extern int i2sbus_control_init(struct macio_dev* dev,
98 struct i2sbus_control **c);
99extern void i2sbus_control_destroy(struct i2sbus_control *c);
100extern int i2sbus_control_add_dev(struct i2sbus_control *c,
101 struct i2sbus_dev *i2sdev);
102extern void i2sbus_control_remove_dev(struct i2sbus_control *c,
103 struct i2sbus_dev *i2sdev);
104extern int i2sbus_control_enable(struct i2sbus_control *c,
105 struct i2sbus_dev *i2sdev);
106extern int i2sbus_control_cell(struct i2sbus_control *c,
107 struct i2sbus_dev *i2sdev,
108 int enable);
109extern int i2sbus_control_clock(struct i2sbus_control *c,
110 struct i2sbus_dev *i2sdev,
111 int enable);
112#endif /* __I2SBUS_H */
diff --git a/sound/aoa/soundbus/soundbus.h b/sound/aoa/soundbus/soundbus.h
new file mode 100644
index 000000000000..5c27297835d7
--- /dev/null
+++ b/sound/aoa/soundbus/soundbus.h
@@ -0,0 +1,202 @@
1/*
2 * soundbus generic definitions
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * GPL v2, can be found in COPYING.
7 */
8#ifndef __SOUNDBUS_H
9#define __SOUNDBUS_H
10
11#include <asm/of_device.h>
12#include <sound/pcm.h>
13#include <linux/list.h>
14
15
16/* When switching from master to slave or the other way around,
17 * you don't want to have the codec chip acting as clock source
18 * while the bus still is.
19 * More importantly, while switch from slave to master, you need
20 * to turn off the chip's master function first, but then there's
21 * no clock for a while and other chips might reset, so we notify
22 * their drivers after having switched.
23 * The constants here are codec-point of view, so when we switch
24 * the soundbus to master we tell the codec we're going to switch
25 * and give it CLOCK_SWITCH_PREPARE_SLAVE!
26 */
27enum clock_switch {
28 CLOCK_SWITCH_PREPARE_SLAVE,
29 CLOCK_SWITCH_PREPARE_MASTER,
30 CLOCK_SWITCH_SLAVE,
31 CLOCK_SWITCH_MASTER,
32 CLOCK_SWITCH_NOTIFY,
33};
34
35/* information on a transfer the codec can take */
36struct transfer_info {
37 u64 formats; /* SNDRV_PCM_FMTBIT_* */
38 unsigned int rates; /* SNDRV_PCM_RATE_* */
39 /* flags */
40 u32 transfer_in:1, /* input = 1, output = 0 */
41 must_be_clock_source:1;
42 /* for codecs to distinguish among their TIs */
43 int tag;
44};
45
46struct codec_info_item {
47 struct codec_info *codec;
48 void *codec_data;
49 struct soundbus_dev *sdev;
50 /* internal, to be used by the soundbus provider */
51 struct list_head list;
52};
53
54/* for prepare, where the codecs need to know
55 * what we're going to drive the bus with */
56struct bus_info {
57 /* see below */
58 int sysclock_factor;
59 int bus_factor;
60};
61
62/* information on the codec itself, plus function pointers */
63struct codec_info {
64 /* the module this lives in */
65 struct module *owner;
66
67 /* supported transfer possibilities, array terminated by
68 * formats or rates being 0. */
69 struct transfer_info *transfers;
70
71 /* Master clock speed factor
72 * to be used (master clock speed = sysclock_factor * sampling freq)
73 * Unused if the soundbus provider has no such notion.
74 */
75 int sysclock_factor;
76
77 /* Bus factor, bus clock speed = bus_factor * sampling freq)
78 * Unused if the soundbus provider has no such notion.
79 */
80 int bus_factor;
81
82 /* operations */
83 /* clock switching, see above */
84 int (*switch_clock)(struct codec_info_item *cii,
85 enum clock_switch clock);
86
87 /* called for each transfer_info when the user
88 * opens the pcm device to determine what the
89 * hardware can support at this point in time.
90 * That can depend on other user-switchable controls.
91 * Return 1 if usable, 0 if not.
92 * out points to another instance of a transfer_info
93 * which is initialised to the values in *ti, and
94 * it's format and rate values can be modified by
95 * the callback if it is necessary to further restrict
96 * the formats that can be used at the moment, for
97 * example when one codec has multiple logical codec
98 * info structs for multiple inputs.
99 */
100 int (*usable)(struct codec_info_item *cii,
101 struct transfer_info *ti,
102 struct transfer_info *out);
103
104 /* called when pcm stream is opened, probably not implemented
105 * most of the time since it isn't too useful */
106 int (*open)(struct codec_info_item *cii,
107 struct snd_pcm_substream *substream);
108
109 /* called when the pcm stream is closed, at this point
110 * the user choices can all be unlocked (see below) */
111 int (*close)(struct codec_info_item *cii,
112 struct snd_pcm_substream *substream);
113
114 /* if the codec must forbid some user choices because
115 * they are not valid with the substream/transfer info,
116 * it must do so here. Example: no digital output for
117 * incompatible framerate, say 8KHz, on Onyx.
118 * If the selected stuff in the substream is NOT
119 * compatible, you have to reject this call! */
120 int (*prepare)(struct codec_info_item *cii,
121 struct bus_info *bi,
122 struct snd_pcm_substream *substream);
123
124 /* start() is called before data is pushed to the codec.
125 * Note that start() must be atomic! */
126 int (*start)(struct codec_info_item *cii,
127 struct snd_pcm_substream *substream);
128
129 /* stop() is called after data is no longer pushed to the codec.
130 * Note that stop() must be atomic! */
131 int (*stop)(struct codec_info_item *cii,
132 struct snd_pcm_substream *substream);
133
134 int (*suspend)(struct codec_info_item *cii, pm_message_t state);
135 int (*resume)(struct codec_info_item *cii);
136};
137
138/* information on a soundbus device */
139struct soundbus_dev {
140 /* the bus it belongs to */
141 struct list_head onbuslist;
142
143 /* the of device it represents */
144 struct of_device ofdev;
145
146 /* what modules go by */
147 char modalias[32];
148
149 /* These fields must be before attach_codec can be called.
150 * They should be set by the owner of the alsa card object
151 * that is needed, and whoever sets them must make sure
152 * that they are unique within that alsa card object. */
153 char *pcmname;
154 int pcmid;
155
156 /* this is assigned by the soundbus provider in attach_codec */
157 struct snd_pcm *pcm;
158
159 /* operations */
160 /* attach a codec to this soundbus, give the alsa
161 * card object the PCMs for this soundbus should be in.
162 * The 'data' pointer must be unique, it is used as the
163 * key for detach_codec(). */
164 int (*attach_codec)(struct soundbus_dev *dev, struct snd_card *card,
165 struct codec_info *ci, void *data);
166 void (*detach_codec)(struct soundbus_dev *dev, void *data);
167 /* TODO: suspend/resume */
168
169 /* private for the soundbus provider */
170 struct list_head codec_list;
171 u32 have_out:1, have_in:1;
172};
173#define to_soundbus_device(d) container_of(d, struct soundbus_dev, ofdev.dev)
174#define of_to_soundbus_device(d) container_of(d, struct soundbus_dev, ofdev)
175
176extern int soundbus_add_one(struct soundbus_dev *dev);
177extern void soundbus_remove_one(struct soundbus_dev *dev);
178
179extern struct soundbus_dev *soundbus_dev_get(struct soundbus_dev *dev);
180extern void soundbus_dev_put(struct soundbus_dev *dev);
181
182struct soundbus_driver {
183 char *name;
184 struct module *owner;
185
186 /* we don't implement any matching at all */
187
188 int (*probe)(struct soundbus_dev* dev);
189 int (*remove)(struct soundbus_dev* dev);
190
191 int (*suspend)(struct soundbus_dev* dev, pm_message_t state);
192 int (*resume)(struct soundbus_dev* dev);
193 int (*shutdown)(struct soundbus_dev* dev);
194
195 struct device_driver driver;
196};
197#define to_soundbus_driver(drv) container_of(drv,struct soundbus_driver, driver)
198
199extern int soundbus_register_driver(struct soundbus_driver *drv);
200extern void soundbus_unregister_driver(struct soundbus_driver *drv);
201
202#endif /* __SOUNDBUS_H */
diff --git a/sound/aoa/soundbus/sysfs.c b/sound/aoa/soundbus/sysfs.c
new file mode 100644
index 000000000000..d31f8146952a
--- /dev/null
+++ b/sound/aoa/soundbus/sysfs.c
@@ -0,0 +1,43 @@
1#include <linux/config.h>
2#include <linux/kernel.h>
3#include <linux/stat.h>
4/* FIX UP */
5#include "soundbus.h"
6
7#define soundbus_config_of_attr(field, format_string) \
8static ssize_t \
9field##_show (struct device *dev, struct device_attribute *attr, \
10 char *buf) \
11{ \
12 struct soundbus_dev *mdev = to_soundbus_device (dev); \
13 return sprintf (buf, format_string, mdev->ofdev.node->field); \
14}
15
16static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
17 char *buf)
18{
19 struct soundbus_dev *sdev = to_soundbus_device(dev);
20 struct of_device *of = &sdev->ofdev;
21 int length;
22
23 if (*sdev->modalias) {
24 strlcpy(buf, sdev->modalias, sizeof(sdev->modalias) + 1);
25 strcat(buf, "\n");
26 length = strlen(buf);
27 } else {
28 length = sprintf(buf, "of:N%sT%s\n",
29 of->node->name, of->node->type);
30 }
31
32 return length;
33}
34
35soundbus_config_of_attr (name, "%s\n");
36soundbus_config_of_attr (type, "%s\n");
37
38struct device_attribute soundbus_dev_attrs[] = {
39 __ATTR_RO(name),
40 __ATTR_RO(type),
41 __ATTR_RO(modalias),
42 __ATTR_NULL
43};
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 16:58:30 -0500