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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
4 *
5 * Copyright 2005 Wolfson Microelectronics PLC.
6 * Copyright 2005 Openedhand Ltd.
7 *
8 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
9 * Richard Purdie <richard@openedhand.com>
10 */
11
12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/timer.h>
15#include <linux/interrupt.h>
16#include <linux/platform_device.h>
17#include <linux/gpio/consumer.h>
18#include <sound/core.h>
19#include <sound/pcm.h>
20#include <sound/soc.h>
21
22#include <asm/mach-types.h>
23#include "../codecs/wm8750.h"
24#include "pxa2xx-i2s.h"
25
26#define SPITZ_HP 0
27#define SPITZ_MIC 1
28#define SPITZ_LINE 2
29#define SPITZ_HEADSET 3
30#define SPITZ_HP_OFF 4
31#define SPITZ_SPK_ON 0
32#define SPITZ_SPK_OFF 1
33
34 /* audio clock in Hz - rounded from 12.235MHz */
35#define SPITZ_AUDIO_CLOCK 12288000
36
37static int spitz_jack_func;
38static int spitz_spk_func;
39static struct gpio_desc *gpiod_mic, *gpiod_mute_l, *gpiod_mute_r;
40
41static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
42{
43 snd_soc_dapm_mutex_lock(dapm);
44
45 if (spitz_spk_func == SPITZ_SPK_ON)
46 snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
47 else
48 snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
49
50 /* set up jack connection */
51 switch (spitz_jack_func) {
52 case SPITZ_HP:
53 /* enable and unmute hp jack, disable mic bias */
54 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
55 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
56 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
57 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
58 gpiod_set_value(gpiod_mute_l, 1);
59 gpiod_set_value(gpiod_mute_r, 1);
60 break;
61 case SPITZ_MIC:
62 /* enable mic jack and bias, mute hp */
63 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
64 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
65 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
66 snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
67 gpiod_set_value(gpiod_mute_l, 0);
68 gpiod_set_value(gpiod_mute_r, 0);
69 break;
70 case SPITZ_LINE:
71 /* enable line jack, disable mic bias and mute hp */
72 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
73 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
74 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
75 snd_soc_dapm_enable_pin_unlocked(dapm, "Line Jack");
76 gpiod_set_value(gpiod_mute_l, 0);
77 gpiod_set_value(gpiod_mute_r, 0);
78 break;
79 case SPITZ_HEADSET:
80 /* enable and unmute headset jack enable mic bias, mute L hp */
81 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
82 snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
83 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
84 snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
85 gpiod_set_value(gpiod_mute_l, 0);
86 gpiod_set_value(gpiod_mute_r, 1);
87 break;
88 case SPITZ_HP_OFF:
89
90 /* jack removed, everything off */
91 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
92 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
93 snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
94 snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
95 gpiod_set_value(gpiod_mute_l, 0);
96 gpiod_set_value(gpiod_mute_r, 0);
97 break;
98 }
99
100 snd_soc_dapm_sync_unlocked(dapm);
101
102 snd_soc_dapm_mutex_unlock(dapm);
103}
104
105static int spitz_startup(struct snd_pcm_substream *substream)
106{
107 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
108
109 /* check the jack status at stream startup */
110 spitz_ext_control(&rtd->card->dapm);
111
112 return 0;
113}
114
115static int spitz_hw_params(struct snd_pcm_substream *substream,
116 struct snd_pcm_hw_params *params)
117{
118 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
119 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
120 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
121 unsigned int clk = 0;
122 int ret = 0;
123
124 switch (params_rate(params)) {
125 case 8000:
126 case 16000:
127 case 48000:
128 case 96000:
129 clk = 12288000;
130 break;
131 case 11025:
132 case 22050:
133 case 44100:
134 clk = 11289600;
135 break;
136 }
137
138 /* set the codec system clock for DAC and ADC */
139 ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
140 SND_SOC_CLOCK_IN);
141 if (ret < 0)
142 return ret;
143
144 /* set the I2S system clock as input (unused) */
145 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
146 SND_SOC_CLOCK_IN);
147 if (ret < 0)
148 return ret;
149
150 return 0;
151}
152
153static const struct snd_soc_ops spitz_ops = {
154 .startup = spitz_startup,
155 .hw_params = spitz_hw_params,
156};
157
158static int spitz_get_jack(struct snd_kcontrol *kcontrol,
159 struct snd_ctl_elem_value *ucontrol)
160{
161 ucontrol->value.enumerated.item[0] = spitz_jack_func;
162 return 0;
163}
164
165static int spitz_set_jack(struct snd_kcontrol *kcontrol,
166 struct snd_ctl_elem_value *ucontrol)
167{
168 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
169
170 if (spitz_jack_func == ucontrol->value.enumerated.item[0])
171 return 0;
172
173 spitz_jack_func = ucontrol->value.enumerated.item[0];
174 spitz_ext_control(&card->dapm);
175 return 1;
176}
177
178static int spitz_get_spk(struct snd_kcontrol *kcontrol,
179 struct snd_ctl_elem_value *ucontrol)
180{
181 ucontrol->value.enumerated.item[0] = spitz_spk_func;
182 return 0;
183}
184
185static int spitz_set_spk(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_value *ucontrol)
187{
188 struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
189
190 if (spitz_spk_func == ucontrol->value.enumerated.item[0])
191 return 0;
192
193 spitz_spk_func = ucontrol->value.enumerated.item[0];
194 spitz_ext_control(&card->dapm);
195 return 1;
196}
197
198static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
199 struct snd_kcontrol *k, int event)
200{
201 gpiod_set_value_cansleep(gpiod_mic, SND_SOC_DAPM_EVENT_ON(event));
202 return 0;
203}
204
205/* spitz machine dapm widgets */
206static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
207 SND_SOC_DAPM_HP("Headphone Jack", NULL),
208 SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
209 SND_SOC_DAPM_SPK("Ext Spk", NULL),
210 SND_SOC_DAPM_LINE("Line Jack", NULL),
211
212 /* headset is a mic and mono headphone */
213 SND_SOC_DAPM_HP("Headset Jack", NULL),
214};
215
216/* Spitz machine audio_map */
217static const struct snd_soc_dapm_route spitz_audio_map[] = {
218
219 /* headphone connected to LOUT1, ROUT1 */
220 {"Headphone Jack", NULL, "LOUT1"},
221 {"Headphone Jack", NULL, "ROUT1"},
222
223 /* headset connected to ROUT1 and LINPUT1 with bias (def below) */
224 {"Headset Jack", NULL, "ROUT1"},
225
226 /* ext speaker connected to LOUT2, ROUT2 */
227 {"Ext Spk", NULL, "ROUT2"},
228 {"Ext Spk", NULL, "LOUT2"},
229
230 /* mic is connected to input 1 - with bias */
231 {"LINPUT1", NULL, "Mic Bias"},
232 {"Mic Bias", NULL, "Mic Jack"},
233
234 /* line is connected to input 1 - no bias */
235 {"LINPUT1", NULL, "Line Jack"},
236};
237
238static const char * const jack_function[] = {"Headphone", "Mic", "Line",
239 "Headset", "Off"};
240static const char * const spk_function[] = {"On", "Off"};
241static const struct soc_enum spitz_enum[] = {
242 SOC_ENUM_SINGLE_EXT(5, jack_function),
243 SOC_ENUM_SINGLE_EXT(2, spk_function),
244};
245
246static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
247 SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
248 spitz_set_jack),
249 SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
250 spitz_set_spk),
251};
252
253/* spitz digital audio interface glue - connects codec <--> CPU */
254SND_SOC_DAILINK_DEFS(wm8750,
255 DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
256 DAILINK_COMP_ARRAY(COMP_CODEC("wm8750.0-001b", "wm8750-hifi")),
257 DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
258
259static struct snd_soc_dai_link spitz_dai = {
260 .name = "wm8750",
261 .stream_name = "WM8750",
262 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
263 SND_SOC_DAIFMT_CBS_CFS,
264 .ops = &spitz_ops,
265 SND_SOC_DAILINK_REG(wm8750),
266};
267
268/* spitz audio machine driver */
269static struct snd_soc_card snd_soc_spitz = {
270 .name = "Spitz",
271 .owner = THIS_MODULE,
272 .dai_link = &spitz_dai,
273 .num_links = 1,
274
275 .controls = wm8750_spitz_controls,
276 .num_controls = ARRAY_SIZE(wm8750_spitz_controls),
277 .dapm_widgets = wm8750_dapm_widgets,
278 .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
279 .dapm_routes = spitz_audio_map,
280 .num_dapm_routes = ARRAY_SIZE(spitz_audio_map),
281 .fully_routed = true,
282};
283
284static int spitz_probe(struct platform_device *pdev)
285{
286 struct snd_soc_card *card = &snd_soc_spitz;
287 int ret;
288
289 gpiod_mic = devm_gpiod_get(&pdev->dev, "mic", GPIOD_OUT_LOW);
290 if (IS_ERR(gpiod_mic))
291 return PTR_ERR(gpiod_mic);
292 gpiod_mute_l = devm_gpiod_get(&pdev->dev, "mute-l", GPIOD_OUT_LOW);
293 if (IS_ERR(gpiod_mute_l))
294 return PTR_ERR(gpiod_mute_l);
295 gpiod_mute_r = devm_gpiod_get(&pdev->dev, "mute-r", GPIOD_OUT_LOW);
296 if (IS_ERR(gpiod_mute_r))
297 return PTR_ERR(gpiod_mute_r);
298
299 card->dev = &pdev->dev;
300
301 ret = devm_snd_soc_register_card(&pdev->dev, card);
302 if (ret)
303 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
304 ret);
305
306 return ret;
307}
308
309static struct platform_driver spitz_driver = {
310 .driver = {
311 .name = "spitz-audio",
312 .pm = &snd_soc_pm_ops,
313 },
314 .probe = spitz_probe,
315};
316
317module_platform_driver(spitz_driver);
318
319MODULE_AUTHOR("Richard Purdie");
320MODULE_DESCRIPTION("ALSA SoC Spitz");
321MODULE_LICENSE("GPL");
322MODULE_ALIAS("platform:spitz-audio");
1/*
2 * spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
3 *
4 * Copyright 2005 Wolfson Microelectronics PLC.
5 * Copyright 2005 Openedhand Ltd.
6 *
7 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
8 * Richard Purdie <richard@openedhand.com>
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17#include <linux/module.h>
18#include <linux/moduleparam.h>
19#include <linux/timer.h>
20#include <linux/interrupt.h>
21#include <linux/platform_device.h>
22#include <linux/gpio.h>
23#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/soc.h>
26
27#include <asm/mach-types.h>
28#include <mach/spitz.h>
29#include "../codecs/wm8750.h"
30#include "pxa2xx-i2s.h"
31
32#define SPITZ_HP 0
33#define SPITZ_MIC 1
34#define SPITZ_LINE 2
35#define SPITZ_HEADSET 3
36#define SPITZ_HP_OFF 4
37#define SPITZ_SPK_ON 0
38#define SPITZ_SPK_OFF 1
39
40 /* audio clock in Hz - rounded from 12.235MHz */
41#define SPITZ_AUDIO_CLOCK 12288000
42
43static int spitz_jack_func;
44static int spitz_spk_func;
45static int spitz_mic_gpio;
46
47static void spitz_ext_control(struct snd_soc_codec *codec)
48{
49 struct snd_soc_dapm_context *dapm = &codec->dapm;
50
51 if (spitz_spk_func == SPITZ_SPK_ON)
52 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
53 else
54 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
55
56 /* set up jack connection */
57 switch (spitz_jack_func) {
58 case SPITZ_HP:
59 /* enable and unmute hp jack, disable mic bias */
60 snd_soc_dapm_disable_pin(dapm, "Headset Jack");
61 snd_soc_dapm_disable_pin(dapm, "Mic Jack");
62 snd_soc_dapm_disable_pin(dapm, "Line Jack");
63 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
64 gpio_set_value(SPITZ_GPIO_MUTE_L, 1);
65 gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
66 break;
67 case SPITZ_MIC:
68 /* enable mic jack and bias, mute hp */
69 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
70 snd_soc_dapm_disable_pin(dapm, "Headset Jack");
71 snd_soc_dapm_disable_pin(dapm, "Line Jack");
72 snd_soc_dapm_enable_pin(dapm, "Mic Jack");
73 gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
74 gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
75 break;
76 case SPITZ_LINE:
77 /* enable line jack, disable mic bias and mute hp */
78 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
79 snd_soc_dapm_disable_pin(dapm, "Headset Jack");
80 snd_soc_dapm_disable_pin(dapm, "Mic Jack");
81 snd_soc_dapm_enable_pin(dapm, "Line Jack");
82 gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
83 gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
84 break;
85 case SPITZ_HEADSET:
86 /* enable and unmute headset jack enable mic bias, mute L hp */
87 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
88 snd_soc_dapm_enable_pin(dapm, "Mic Jack");
89 snd_soc_dapm_disable_pin(dapm, "Line Jack");
90 snd_soc_dapm_enable_pin(dapm, "Headset Jack");
91 gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
92 gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
93 break;
94 case SPITZ_HP_OFF:
95
96 /* jack removed, everything off */
97 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
98 snd_soc_dapm_disable_pin(dapm, "Headset Jack");
99 snd_soc_dapm_disable_pin(dapm, "Mic Jack");
100 snd_soc_dapm_disable_pin(dapm, "Line Jack");
101 gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
102 gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
103 break;
104 }
105 snd_soc_dapm_sync(dapm);
106}
107
108static int spitz_startup(struct snd_pcm_substream *substream)
109{
110 struct snd_soc_pcm_runtime *rtd = substream->private_data;
111 struct snd_soc_codec *codec = rtd->codec;
112
113 mutex_lock(&codec->mutex);
114
115 /* check the jack status at stream startup */
116 spitz_ext_control(codec);
117
118 mutex_unlock(&codec->mutex);
119
120 return 0;
121}
122
123static int spitz_hw_params(struct snd_pcm_substream *substream,
124 struct snd_pcm_hw_params *params)
125{
126 struct snd_soc_pcm_runtime *rtd = substream->private_data;
127 struct snd_soc_dai *codec_dai = rtd->codec_dai;
128 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
129 unsigned int clk = 0;
130 int ret = 0;
131
132 switch (params_rate(params)) {
133 case 8000:
134 case 16000:
135 case 48000:
136 case 96000:
137 clk = 12288000;
138 break;
139 case 11025:
140 case 22050:
141 case 44100:
142 clk = 11289600;
143 break;
144 }
145
146 /* set codec DAI configuration */
147 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
148 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
149 if (ret < 0)
150 return ret;
151
152 /* set cpu DAI configuration */
153 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
154 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
155 if (ret < 0)
156 return ret;
157
158 /* set the codec system clock for DAC and ADC */
159 ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
160 SND_SOC_CLOCK_IN);
161 if (ret < 0)
162 return ret;
163
164 /* set the I2S system clock as input (unused) */
165 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
166 SND_SOC_CLOCK_IN);
167 if (ret < 0)
168 return ret;
169
170 return 0;
171}
172
173static struct snd_soc_ops spitz_ops = {
174 .startup = spitz_startup,
175 .hw_params = spitz_hw_params,
176};
177
178static int spitz_get_jack(struct snd_kcontrol *kcontrol,
179 struct snd_ctl_elem_value *ucontrol)
180{
181 ucontrol->value.integer.value[0] = spitz_jack_func;
182 return 0;
183}
184
185static int spitz_set_jack(struct snd_kcontrol *kcontrol,
186 struct snd_ctl_elem_value *ucontrol)
187{
188 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
189
190 if (spitz_jack_func == ucontrol->value.integer.value[0])
191 return 0;
192
193 spitz_jack_func = ucontrol->value.integer.value[0];
194 spitz_ext_control(codec);
195 return 1;
196}
197
198static int spitz_get_spk(struct snd_kcontrol *kcontrol,
199 struct snd_ctl_elem_value *ucontrol)
200{
201 ucontrol->value.integer.value[0] = spitz_spk_func;
202 return 0;
203}
204
205static int spitz_set_spk(struct snd_kcontrol *kcontrol,
206 struct snd_ctl_elem_value *ucontrol)
207{
208 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
209
210 if (spitz_spk_func == ucontrol->value.integer.value[0])
211 return 0;
212
213 spitz_spk_func = ucontrol->value.integer.value[0];
214 spitz_ext_control(codec);
215 return 1;
216}
217
218static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
219 struct snd_kcontrol *k, int event)
220{
221 gpio_set_value_cansleep(spitz_mic_gpio, SND_SOC_DAPM_EVENT_ON(event));
222 return 0;
223}
224
225/* spitz machine dapm widgets */
226static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
227 SND_SOC_DAPM_HP("Headphone Jack", NULL),
228 SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
229 SND_SOC_DAPM_SPK("Ext Spk", NULL),
230 SND_SOC_DAPM_LINE("Line Jack", NULL),
231
232 /* headset is a mic and mono headphone */
233 SND_SOC_DAPM_HP("Headset Jack", NULL),
234};
235
236/* Spitz machine audio_map */
237static const struct snd_soc_dapm_route audio_map[] = {
238
239 /* headphone connected to LOUT1, ROUT1 */
240 {"Headphone Jack", NULL, "LOUT1"},
241 {"Headphone Jack", NULL, "ROUT1"},
242
243 /* headset connected to ROUT1 and LINPUT1 with bias (def below) */
244 {"Headset Jack", NULL, "ROUT1"},
245
246 /* ext speaker connected to LOUT2, ROUT2 */
247 {"Ext Spk", NULL , "ROUT2"},
248 {"Ext Spk", NULL , "LOUT2"},
249
250 /* mic is connected to input 1 - with bias */
251 {"LINPUT1", NULL, "Mic Bias"},
252 {"Mic Bias", NULL, "Mic Jack"},
253
254 /* line is connected to input 1 - no bias */
255 {"LINPUT1", NULL, "Line Jack"},
256};
257
258static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
259 "Off"};
260static const char *spk_function[] = {"On", "Off"};
261static const struct soc_enum spitz_enum[] = {
262 SOC_ENUM_SINGLE_EXT(5, jack_function),
263 SOC_ENUM_SINGLE_EXT(2, spk_function),
264};
265
266static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
267 SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
268 spitz_set_jack),
269 SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
270 spitz_set_spk),
271};
272
273/*
274 * Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
275 */
276static int spitz_wm8750_init(struct snd_soc_pcm_runtime *rtd)
277{
278 struct snd_soc_codec *codec = rtd->codec;
279 struct snd_soc_dapm_context *dapm = &codec->dapm;
280 int err;
281
282 /* NC codec pins */
283 snd_soc_dapm_nc_pin(dapm, "RINPUT1");
284 snd_soc_dapm_nc_pin(dapm, "LINPUT2");
285 snd_soc_dapm_nc_pin(dapm, "RINPUT2");
286 snd_soc_dapm_nc_pin(dapm, "LINPUT3");
287 snd_soc_dapm_nc_pin(dapm, "RINPUT3");
288 snd_soc_dapm_nc_pin(dapm, "OUT3");
289 snd_soc_dapm_nc_pin(dapm, "MONO1");
290
291 /* Add spitz specific controls */
292 err = snd_soc_add_controls(codec, wm8750_spitz_controls,
293 ARRAY_SIZE(wm8750_spitz_controls));
294 if (err < 0)
295 return err;
296
297 /* Add spitz specific widgets */
298 snd_soc_dapm_new_controls(dapm, wm8750_dapm_widgets,
299 ARRAY_SIZE(wm8750_dapm_widgets));
300
301 /* Set up spitz specific audio paths */
302 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
303
304 snd_soc_dapm_sync(dapm);
305 return 0;
306}
307
308/* spitz digital audio interface glue - connects codec <--> CPU */
309static struct snd_soc_dai_link spitz_dai = {
310 .name = "wm8750",
311 .stream_name = "WM8750",
312 .cpu_dai_name = "pxa2xx-i2s",
313 .codec_dai_name = "wm8750-hifi",
314 .platform_name = "pxa-pcm-audio",
315 .codec_name = "wm8750-codec.0-001b",
316 .init = spitz_wm8750_init,
317 .ops = &spitz_ops,
318};
319
320/* spitz audio machine driver */
321static struct snd_soc_card snd_soc_spitz = {
322 .name = "Spitz",
323 .dai_link = &spitz_dai,
324 .num_links = 1,
325};
326
327static struct platform_device *spitz_snd_device;
328
329static int __init spitz_init(void)
330{
331 int ret;
332
333 if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita()))
334 return -ENODEV;
335
336 if (machine_is_borzoi() || machine_is_spitz())
337 spitz_mic_gpio = SPITZ_GPIO_MIC_BIAS;
338 else
339 spitz_mic_gpio = AKITA_GPIO_MIC_BIAS;
340
341 ret = gpio_request(spitz_mic_gpio, "MIC GPIO");
342 if (ret)
343 goto err1;
344
345 ret = gpio_direction_output(spitz_mic_gpio, 0);
346 if (ret)
347 goto err2;
348
349 spitz_snd_device = platform_device_alloc("soc-audio", -1);
350 if (!spitz_snd_device) {
351 ret = -ENOMEM;
352 goto err2;
353 }
354
355 platform_set_drvdata(spitz_snd_device, &snd_soc_spitz);
356
357 ret = platform_device_add(spitz_snd_device);
358 if (ret)
359 goto err3;
360
361 return 0;
362
363err3:
364 platform_device_put(spitz_snd_device);
365err2:
366 gpio_free(spitz_mic_gpio);
367err1:
368 return ret;
369}
370
371static void __exit spitz_exit(void)
372{
373 platform_device_unregister(spitz_snd_device);
374 gpio_free(spitz_mic_gpio);
375}
376
377module_init(spitz_init);
378module_exit(spitz_exit);
379
380MODULE_AUTHOR("Richard Purdie");
381MODULE_DESCRIPTION("ALSA SoC Spitz");
382MODULE_LICENSE("GPL");