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-rw-r--r--sound/usb/6fire/control.c380
1 files changed, 380 insertions, 0 deletions
diff --git a/sound/usb/6fire/control.c b/sound/usb/6fire/control.c
new file mode 100644
index 000000000000..ac828eff1a63
--- /dev/null
+++ b/sound/usb/6fire/control.c
@@ -0,0 +1,380 @@
1/*
2 * Linux driver for TerraTec DMX 6Fire USB
3 *
4 * Mixer control
5 *
6 * Author: Torsten Schenk <torsten.schenk@zoho.com>
7 * Created: Jan 01, 2011
8 * Version: 0.3.0
9 * Copyright: (C) Torsten Schenk
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 */
16
17#include <linux/interrupt.h>
18#include <sound/control.h>
19
20#include "control.h"
21#include "comm.h"
22#include "chip.h"
23
24static char *opt_coax_texts[2] = { "Optical", "Coax" };
25static char *line_phono_texts[2] = { "Line", "Phono" };
26
27/*
28 * calculated with $value\[i\] = 128 \cdot sqrt[3]{\frac{i}{128}}$
29 * this is done because the linear values cause rapid degredation
30 * of volume in the uppermost region.
31 */
32static const u8 log_volume_table[128] = {
33 0x00, 0x19, 0x20, 0x24, 0x28, 0x2b, 0x2e, 0x30, 0x32, 0x34,
34 0x36, 0x38, 0x3a, 0x3b, 0x3d, 0x3e, 0x40, 0x41, 0x42, 0x43,
35 0x44, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e,
36 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x53, 0x54, 0x55, 0x56,
37 0x56, 0x57, 0x58, 0x58, 0x59, 0x5a, 0x5b, 0x5b, 0x5c, 0x5c,
38 0x5d, 0x5e, 0x5e, 0x5f, 0x60, 0x60, 0x61, 0x61, 0x62, 0x62,
39 0x63, 0x63, 0x64, 0x65, 0x65, 0x66, 0x66, 0x67, 0x67, 0x68,
40 0x68, 0x69, 0x69, 0x6a, 0x6a, 0x6b, 0x6b, 0x6c, 0x6c, 0x6c,
41 0x6d, 0x6d, 0x6e, 0x6e, 0x6f, 0x6f, 0x70, 0x70, 0x70, 0x71,
42 0x71, 0x72, 0x72, 0x73, 0x73, 0x73, 0x74, 0x74, 0x75, 0x75,
43 0x75, 0x76, 0x76, 0x77, 0x77, 0x77, 0x78, 0x78, 0x78, 0x79,
44 0x79, 0x7a, 0x7a, 0x7a, 0x7b, 0x7b, 0x7b, 0x7c, 0x7c, 0x7c,
45 0x7d, 0x7d, 0x7d, 0x7e, 0x7e, 0x7e, 0x7f, 0x7f };
46
47/*
48 * data that needs to be sent to device. sets up card internal stuff.
49 * values dumped from windows driver and filtered by trial'n'error.
50 */
51static const struct {
52 u8 type;
53 u8 reg;
54 u8 value;
55}
56init_data[] = {
57 { 0x22, 0x00, 0x00 }, { 0x20, 0x00, 0x08 }, { 0x22, 0x01, 0x01 },
58 { 0x20, 0x01, 0x08 }, { 0x22, 0x02, 0x00 }, { 0x20, 0x02, 0x08 },
59 { 0x22, 0x03, 0x00 }, { 0x20, 0x03, 0x08 }, { 0x22, 0x04, 0x00 },
60 { 0x20, 0x04, 0x08 }, { 0x22, 0x05, 0x01 }, { 0x20, 0x05, 0x08 },
61 { 0x22, 0x04, 0x01 }, { 0x12, 0x04, 0x00 }, { 0x12, 0x05, 0x00 },
62 { 0x12, 0x0d, 0x78 }, { 0x12, 0x21, 0x82 }, { 0x12, 0x22, 0x80 },
63 { 0x12, 0x23, 0x00 }, { 0x12, 0x06, 0x02 }, { 0x12, 0x03, 0x00 },
64 { 0x12, 0x02, 0x00 }, { 0x22, 0x03, 0x01 },
65 { 0 } /* TERMINATING ENTRY */
66};
67
68static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 };
69/* values to write to soundcard register for all samplerates */
70static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01};
71static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00};
72
73enum {
74 DIGITAL_THRU_ONLY_SAMPLERATE = 3
75};
76
77static void usb6fire_control_master_vol_update(struct control_runtime *rt)
78{
79 struct comm_runtime *comm_rt = rt->chip->comm;
80 if (comm_rt) {
81 /* set volume */
82 comm_rt->write8(comm_rt, 0x12, 0x0f, 0x7f -
83 log_volume_table[rt->master_vol]);
84 /* unmute */
85 comm_rt->write8(comm_rt, 0x12, 0x0e, 0x00);
86 }
87}
88
89static void usb6fire_control_line_phono_update(struct control_runtime *rt)
90{
91 struct comm_runtime *comm_rt = rt->chip->comm;
92 if (comm_rt) {
93 comm_rt->write8(comm_rt, 0x22, 0x02, rt->line_phono_switch);
94 comm_rt->write8(comm_rt, 0x21, 0x02, rt->line_phono_switch);
95 }
96}
97
98static void usb6fire_control_opt_coax_update(struct control_runtime *rt)
99{
100 struct comm_runtime *comm_rt = rt->chip->comm;
101 if (comm_rt) {
102 comm_rt->write8(comm_rt, 0x22, 0x00, rt->opt_coax_switch);
103 comm_rt->write8(comm_rt, 0x21, 0x00, rt->opt_coax_switch);
104 }
105}
106
107static int usb6fire_control_set_rate(struct control_runtime *rt, int rate)
108{
109 int ret;
110 struct usb_device *device = rt->chip->dev;
111 struct comm_runtime *comm_rt = rt->chip->comm;
112
113 if (rate < 0 || rate >= CONTROL_N_RATES)
114 return -EINVAL;
115
116 ret = usb_set_interface(device, 1, rates_altsetting[rate]);
117 if (ret < 0)
118 return ret;
119
120 /* set soundcard clock */
121 ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rate],
122 rates_6fire_vh[rate]);
123 if (ret < 0)
124 return ret;
125
126 return 0;
127}
128
129static int usb6fire_control_set_channels(
130 struct control_runtime *rt, int n_analog_out,
131 int n_analog_in, bool spdif_out, bool spdif_in)
132{
133 int ret;
134 struct comm_runtime *comm_rt = rt->chip->comm;
135
136 /* enable analog inputs and outputs
137 * (one bit per stereo-channel) */
138 ret = comm_rt->write16(comm_rt, 0x02, 0x02,
139 (1 << (n_analog_out / 2)) - 1,
140 (1 << (n_analog_in / 2)) - 1);
141 if (ret < 0)
142 return ret;
143
144 /* disable digital inputs and outputs */
145 /* TODO: use spdif_x to enable/disable digital channels */
146 ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00);
147 if (ret < 0)
148 return ret;
149
150 return 0;
151}
152
153static int usb6fire_control_streaming_update(struct control_runtime *rt)
154{
155 struct comm_runtime *comm_rt = rt->chip->comm;
156
157 if (comm_rt) {
158 if (!rt->usb_streaming && rt->digital_thru_switch)
159 usb6fire_control_set_rate(rt,
160 DIGITAL_THRU_ONLY_SAMPLERATE);
161 return comm_rt->write16(comm_rt, 0x02, 0x00, 0x00,
162 (rt->usb_streaming ? 0x01 : 0x00) |
163 (rt->digital_thru_switch ? 0x08 : 0x00));
164 }
165 return -EINVAL;
166}
167
168static int usb6fire_control_master_vol_info(struct snd_kcontrol *kcontrol,
169 struct snd_ctl_elem_info *uinfo)
170{
171 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
172 uinfo->count = 1;
173 uinfo->value.integer.min = 0;
174 uinfo->value.integer.max = 127;
175 return 0;
176}
177
178static int usb6fire_control_master_vol_put(struct snd_kcontrol *kcontrol,
179 struct snd_ctl_elem_value *ucontrol)
180{
181 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
182 int changed = 0;
183 if (rt->master_vol != ucontrol->value.integer.value[0]) {
184 rt->master_vol = ucontrol->value.integer.value[0];
185 usb6fire_control_master_vol_update(rt);
186 changed = 1;
187 }
188 return changed;
189}
190
191static int usb6fire_control_master_vol_get(struct snd_kcontrol *kcontrol,
192 struct snd_ctl_elem_value *ucontrol)
193{
194 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
195 ucontrol->value.integer.value[0] = rt->master_vol;
196 return 0;
197}
198
199static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol,
200 struct snd_ctl_elem_info *uinfo)
201{
202 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
203 uinfo->count = 1;
204 uinfo->value.enumerated.items = 2;
205 if (uinfo->value.enumerated.item > 1)
206 uinfo->value.enumerated.item = 1;
207 strcpy(uinfo->value.enumerated.name,
208 line_phono_texts[uinfo->value.enumerated.item]);
209 return 0;
210}
211
212static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol,
213 struct snd_ctl_elem_value *ucontrol)
214{
215 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
216 int changed = 0;
217 if (rt->line_phono_switch != ucontrol->value.integer.value[0]) {
218 rt->line_phono_switch = ucontrol->value.integer.value[0];
219 usb6fire_control_line_phono_update(rt);
220 changed = 1;
221 }
222 return changed;
223}
224
225static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol,
226 struct snd_ctl_elem_value *ucontrol)
227{
228 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
229 ucontrol->value.integer.value[0] = rt->line_phono_switch;
230 return 0;
231}
232
233static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol,
234 struct snd_ctl_elem_info *uinfo)
235{
236 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
237 uinfo->count = 1;
238 uinfo->value.enumerated.items = 2;
239 if (uinfo->value.enumerated.item > 1)
240 uinfo->value.enumerated.item = 1;
241 strcpy(uinfo->value.enumerated.name,
242 opt_coax_texts[uinfo->value.enumerated.item]);
243 return 0;
244}
245
246static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol,
247 struct snd_ctl_elem_value *ucontrol)
248{
249 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
250 int changed = 0;
251
252 if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) {
253 rt->opt_coax_switch = ucontrol->value.enumerated.item[0];
254 usb6fire_control_opt_coax_update(rt);
255 changed = 1;
256 }
257 return changed;
258}
259
260static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol,
261 struct snd_ctl_elem_value *ucontrol)
262{
263 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
264 ucontrol->value.enumerated.item[0] = rt->opt_coax_switch;
265 return 0;
266}
267
268static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol,
269 struct snd_ctl_elem_value *ucontrol)
270{
271 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
272 int changed = 0;
273
274 if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) {
275 rt->digital_thru_switch = ucontrol->value.integer.value[0];
276 usb6fire_control_streaming_update(rt);
277 changed = 1;
278 }
279 return changed;
280}
281
282static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol,
283 struct snd_ctl_elem_value *ucontrol)
284{
285 struct control_runtime *rt = snd_kcontrol_chip(kcontrol);
286 ucontrol->value.integer.value[0] = rt->digital_thru_switch;
287 return 0;
288}
289
290static struct __devinitdata snd_kcontrol_new elements[] = {
291 {
292 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
293 .name = "Master Playback Volume",
294 .index = 0,
295 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
296 .info = usb6fire_control_master_vol_info,
297 .get = usb6fire_control_master_vol_get,
298 .put = usb6fire_control_master_vol_put
299 },
300 {
301 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
302 .name = "Line/Phono Capture Route",
303 .index = 0,
304 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
305 .info = usb6fire_control_line_phono_info,
306 .get = usb6fire_control_line_phono_get,
307 .put = usb6fire_control_line_phono_put
308 },
309 {
310 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
311 .name = "Opt/Coax Capture Route",
312 .index = 0,
313 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
314 .info = usb6fire_control_opt_coax_info,
315 .get = usb6fire_control_opt_coax_get,
316 .put = usb6fire_control_opt_coax_put
317 },
318 {
319 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
320 .name = "Digital Thru Playback Route",
321 .index = 0,
322 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
323 .info = snd_ctl_boolean_mono_info,
324 .get = usb6fire_control_digital_thru_get,
325 .put = usb6fire_control_digital_thru_put
326 },
327 {}
328};
329
330int __devinit usb6fire_control_init(struct sfire_chip *chip)
331{
332 int i;
333 int ret;
334 struct control_runtime *rt = kzalloc(sizeof(struct control_runtime),
335 GFP_KERNEL);
336 struct comm_runtime *comm_rt = chip->comm;
337
338 if (!rt)
339 return -ENOMEM;
340
341 rt->chip = chip;
342 rt->update_streaming = usb6fire_control_streaming_update;
343 rt->set_rate = usb6fire_control_set_rate;
344 rt->set_channels = usb6fire_control_set_channels;
345
346 i = 0;
347 while (init_data[i].type) {
348 comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg,
349 init_data[i].value);
350 i++;
351 }
352
353 usb6fire_control_opt_coax_update(rt);
354 usb6fire_control_line_phono_update(rt);
355 usb6fire_control_master_vol_update(rt);
356 usb6fire_control_streaming_update(rt);
357
358 i = 0;
359 while (elements[i].name) {
360 ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt));
361 if (ret < 0) {
362 kfree(rt);
363 snd_printk(KERN_ERR PREFIX "cannot add control.\n");
364 return ret;
365 }
366 i++;
367 }
368
369 chip->control = rt;
370 return 0;
371}
372
373void usb6fire_control_abort(struct sfire_chip *chip)
374{}
375
376void usb6fire_control_destroy(struct sfire_chip *chip)
377{
378 kfree(chip->control);
379 chip->control = NULL;
380}
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