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authorMarek Vasut <marek.vasut@gmail.com>2008-11-03 07:02:12 -0500
committerMark Brown <broonie@opensource.wolfsonmicro.com>2008-11-05 17:11:16 -0500
commit74e722015fe47c8f0e7ef7c0b4cf32d3e4ae11a0 (patch)
treefb02245ccb73daf0e4069b47e002479dfcaa5d48 /sound/soc
parent0ee4663617fb0f78cec4cc6558a096ccbd8c3ffc (diff)
ASoC: Add Palm/PXA27x unified ASoC audio driver
this patch adds asoc audio driver for pxa27x based Palm PDAs. I tested it for palmtx, t5 and ld, it should work with palmz72 as well (slapin, please test). I sent it here some time ago, but now I got to fixing bugs in it. It should be somehow mostly ok and ready for applying. [Converted to use snd_soc_dapm_nc_pin() and bool Kconfig -- broonie] Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/pxa/Kconfig9
-rw-r--r--sound/soc/pxa/Makefile2
-rw-r--r--sound/soc/pxa/palm27x.c269
3 files changed, 280 insertions, 0 deletions
diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 4235524238f9..f82e10699471 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -79,6 +79,15 @@ config SND_PXA2XX_SOC_EM_X270
79 Say Y if you want to add support for SoC audio on 79 Say Y if you want to add support for SoC audio on
80 CompuLab EM-x270. 80 CompuLab EM-x270.
81 81
82config SND_PXA2XX_SOC_PALM27X
83 bool "SoC Audio support for Palm T|X, T5 and LifeDrive"
84 depends on SND_PXA2XX_SOC && (MACH_PALMLD || MACH_PALMTX || MACH_PALMT5)
85 select SND_PXA2XX_SOC_AC97
86 select SND_SOC_WM9712
87 help
88 Say Y if you want to add support for SoC audio on
89 Palm T|X, T5 or LifeDrive handheld computer.
90
82config SND_SOC_ZYLONITE 91config SND_SOC_ZYLONITE
83 tristate "SoC Audio support for Marvell Zylonite" 92 tristate "SoC Audio support for Marvell Zylonite"
84 depends on SND_PXA2XX_SOC && MACH_ZYLONITE 93 depends on SND_PXA2XX_SOC && MACH_ZYLONITE
diff --git a/sound/soc/pxa/Makefile b/sound/soc/pxa/Makefile
index 00258abb84a8..1a3a36e75bf0 100644
--- a/sound/soc/pxa/Makefile
+++ b/sound/soc/pxa/Makefile
@@ -16,6 +16,7 @@ snd-soc-tosa-objs := tosa.o
16snd-soc-e800-objs := e800_wm9712.o 16snd-soc-e800-objs := e800_wm9712.o
17snd-soc-spitz-objs := spitz.o 17snd-soc-spitz-objs := spitz.o
18snd-soc-em-x270-objs := em-x270.o 18snd-soc-em-x270-objs := em-x270.o
19snd-soc-palm27x-objs := palm27x.o
19 20
20obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o 21obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o
21obj-$(CONFIG_SND_PXA2XX_SOC_POODLE) += snd-soc-poodle.o 22obj-$(CONFIG_SND_PXA2XX_SOC_POODLE) += snd-soc-poodle.o
@@ -23,3 +24,4 @@ obj-$(CONFIG_SND_PXA2XX_SOC_TOSA) += snd-soc-tosa.o
23obj-$(CONFIG_SND_PXA2XX_SOC_E800) += snd-soc-e800.o 24obj-$(CONFIG_SND_PXA2XX_SOC_E800) += snd-soc-e800.o
24obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o 25obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o
25obj-$(CONFIG_SND_PXA2XX_SOC_EM_X270) += snd-soc-em-x270.o 26obj-$(CONFIG_SND_PXA2XX_SOC_EM_X270) += snd-soc-em-x270.o
27obj-$(CONFIG_SND_PXA2XX_SOC_PALM27X) += snd-soc-palm27x.o
diff --git a/sound/soc/pxa/palm27x.c b/sound/soc/pxa/palm27x.c
new file mode 100644
index 000000000000..e364abc700db
--- /dev/null
+++ b/sound/soc/pxa/palm27x.c
@@ -0,0 +1,269 @@
1/*
2 * linux/sound/soc/pxa/palm27x.c
3 *
4 * SoC Audio driver for Palm T|X, T5 and LifeDrive
5 *
6 * based on tosa.c
7 *
8 * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 */
15
16#include <linux/module.h>
17#include <linux/moduleparam.h>
18#include <linux/device.h>
19#include <linux/gpio.h>
20#include <linux/interrupt.h>
21#include <linux/irq.h>
22
23#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/soc.h>
26#include <sound/soc-dapm.h>
27
28#include <asm/mach-types.h>
29#include <mach/audio.h>
30#include <mach/palmasoc.h>
31
32#include "../codecs/wm9712.h"
33#include "pxa2xx-pcm.h"
34#include "pxa2xx-ac97.h"
35
36static int palm27x_jack_func = 1;
37static int palm27x_spk_func = 1;
38static int palm27x_ep_gpio = -1;
39
40static void palm27x_ext_control(struct snd_soc_codec *codec)
41{
42 if (!palm27x_spk_func)
43 snd_soc_dapm_enable_pin(codec, "Speaker");
44 else
45 snd_soc_dapm_disable_pin(codec, "Speaker");
46
47 if (!palm27x_jack_func)
48 snd_soc_dapm_enable_pin(codec, "Headphone Jack");
49 else
50 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
51
52 snd_soc_dapm_sync(codec);
53}
54
55static int palm27x_startup(struct snd_pcm_substream *substream)
56{
57 struct snd_soc_pcm_runtime *rtd = substream->private_data;
58 struct snd_soc_codec *codec = rtd->socdev->codec;
59
60 /* check the jack status at stream startup */
61 palm27x_ext_control(codec);
62 return 0;
63}
64
65static struct snd_soc_ops palm27x_ops = {
66 .startup = palm27x_startup,
67};
68
69static irqreturn_t palm27x_interrupt(int irq, void *v)
70{
71 palm27x_spk_func = gpio_get_value(palm27x_ep_gpio);
72 palm27x_jack_func = !palm27x_spk_func;
73 return IRQ_HANDLED;
74}
75
76static int palm27x_get_jack(struct snd_kcontrol *kcontrol,
77 struct snd_ctl_elem_value *ucontrol)
78{
79 ucontrol->value.integer.value[0] = palm27x_jack_func;
80 return 0;
81}
82
83static int palm27x_set_jack(struct snd_kcontrol *kcontrol,
84 struct snd_ctl_elem_value *ucontrol)
85{
86 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
87
88 if (palm27x_jack_func == ucontrol->value.integer.value[0])
89 return 0;
90
91 palm27x_jack_func = ucontrol->value.integer.value[0];
92 palm27x_ext_control(codec);
93 return 1;
94}
95
96static int palm27x_get_spk(struct snd_kcontrol *kcontrol,
97 struct snd_ctl_elem_value *ucontrol)
98{
99 ucontrol->value.integer.value[0] = palm27x_spk_func;
100 return 0;
101}
102
103static int palm27x_set_spk(struct snd_kcontrol *kcontrol,
104 struct snd_ctl_elem_value *ucontrol)
105{
106 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
107
108 if (palm27x_spk_func == ucontrol->value.integer.value[0])
109 return 0;
110
111 palm27x_spk_func = ucontrol->value.integer.value[0];
112 palm27x_ext_control(codec);
113 return 1;
114}
115
116/* PalmTX machine dapm widgets */
117static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
118 SND_SOC_DAPM_HP("Headphone Jack", NULL),
119 SND_SOC_DAPM_SPK("Speaker", NULL),
120};
121
122/* PalmTX audio map */
123static const struct snd_soc_dapm_route audio_map[] = {
124 /* headphone connected to HPOUTL, HPOUTR */
125 {"Headphone Jack", NULL, "HPOUTL"},
126 {"Headphone Jack", NULL, "HPOUTR"},
127
128 /* ext speaker connected to ROUT2, LOUT2 */
129 {"Speaker", NULL, "LOUT2"},
130 {"Speaker", NULL, "ROUT2"},
131};
132
133static const char *jack_function[] = {"Headphone", "Off"};
134static const char *spk_function[] = {"On", "Off"};
135static const struct soc_enum palm27x_enum[] = {
136 SOC_ENUM_SINGLE_EXT(2, jack_function),
137 SOC_ENUM_SINGLE_EXT(2, spk_function),
138};
139
140static const struct snd_kcontrol_new palm27x_controls[] = {
141 SOC_ENUM_EXT("Jack Function", palm27x_enum[0], palm27x_get_jack,
142 palm27x_set_jack),
143 SOC_ENUM_EXT("Speaker Function", palm27x_enum[1], palm27x_get_spk,
144 palm27x_set_spk),
145};
146
147static int palm27x_ac97_init(struct snd_soc_codec *codec)
148{
149 int i, err;
150
151 snd_soc_dapm_nc_pin(codec, "OUT3");
152 snd_soc_dapm_nc_pin(codec, "MONOOUT");
153
154 /* add palm27x specific controls */
155 for (i = 0; i < ARRAY_SIZE(palm27x_controls); i++) {
156 err = snd_ctl_add(codec->card,
157 snd_soc_cnew(&palm27x_controls[i],
158 codec, NULL));
159 if (err < 0)
160 return err;
161 }
162
163 /* add palm27x specific widgets */
164 snd_soc_dapm_new_controls(codec, palm27x_dapm_widgets,
165 ARRAY_SIZE(palm27x_dapm_widgets));
166
167 /* set up palm27x specific audio path audio_map */
168 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
169
170 snd_soc_dapm_sync(codec);
171 return 0;
172}
173
174static struct snd_soc_dai_link palm27x_dai[] = {
175{
176 .name = "AC97 HiFi",
177 .stream_name = "AC97 HiFi",
178 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
179 .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
180 .init = palm27x_ac97_init,
181 .ops = &palm27x_ops,
182},
183{
184 .name = "AC97 Aux",
185 .stream_name = "AC97 Aux",
186 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
187 .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
188 .ops = &palm27x_ops,
189},
190};
191
192static struct snd_soc_machine palm27x_asoc = {
193 .name = "Palm/PXA27x",
194 .dai_link = palm27x_dai,
195 .num_links = ARRAY_SIZE(palm27x_dai),
196};
197
198static struct snd_soc_device palm27x_snd_devdata = {
199 .machine = &palm27x_asoc,
200 .platform = &pxa2xx_soc_platform,
201 .codec_dev = &soc_codec_dev_wm9712,
202};
203
204static struct platform_device *palm27x_snd_device;
205
206static int __init palm27x_asoc_init(void)
207{
208 int ret;
209
210 if (!(machine_is_palmtx() || machine_is_palmt5() ||
211 machine_is_palmld()))
212 return -ENODEV;
213
214 ret = gpio_request(palm27x_ep_gpio, "Headphone Jack");
215 if (ret)
216 return ret;
217 ret = gpio_direction_input(palm27x_ep_gpio);
218 if (ret)
219 goto err_alloc;
220
221 if (request_irq(gpio_to_irq(palm27x_ep_gpio), palm27x_interrupt,
222 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
223 "Headphone jack", NULL))
224 goto err_alloc;
225
226 palm27x_snd_device = platform_device_alloc("soc-audio", -1);
227 if (!palm27x_snd_device) {
228 ret = -ENOMEM;
229 goto err_dev;
230 }
231
232 platform_set_drvdata(palm27x_snd_device, &palm27x_snd_devdata);
233 palm27x_snd_devdata.dev = &palm27x_snd_device->dev;
234 ret = platform_device_add(palm27x_snd_device);
235
236 if (ret != 0)
237 goto put_device;
238
239 return 0;
240
241put_device:
242 platform_device_put(palm27x_snd_device);
243err_dev:
244 free_irq(gpio_to_irq(palm27x_ep_gpio), NULL);
245err_alloc:
246 gpio_free(palm27x_ep_gpio);
247
248 return ret;
249}
250
251static void __exit palm27x_asoc_exit(void)
252{
253 free_irq(gpio_to_irq(palm27x_ep_gpio), NULL);
254 gpio_free(palm27x_ep_gpio);
255 platform_device_unregister(palm27x_snd_device);
256}
257
258void __init palm27x_asoc_set_pdata(struct palm27x_asoc_info *data)
259{
260 palm27x_ep_gpio = data->jack_gpio;
261}
262
263module_init(palm27x_asoc_init);
264module_exit(palm27x_asoc_exit);
265
266/* Module information */
267MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
268MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
269MODULE_LICENSE("GPL");