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7fb290d0 LG |
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 | * | |
d331124d | 7 | * Authors: Liam Girdwood <lrg@slimlogic.co.uk> |
7fb290d0 LG |
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 | * | |
7fb290d0 LG |
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> | |
fff14720 | 22 | #include <linux/gpio.h> |
7fb290d0 LG |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/soc.h> | |
7fb290d0 LG |
26 | |
27 | #include <asm/mach-types.h> | |
a09e64fb | 28 | #include <mach/spitz.h> |
7fb290d0 | 29 | #include "../codecs/wm8750.h" |
97952f60 | 30 | #include "pxa2xx-i2s.h" |
7fb290d0 LG |
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 | ||
43 | static int spitz_jack_func; | |
44 | static int spitz_spk_func; | |
04368d05 | 45 | static int spitz_mic_gpio; |
7fb290d0 | 46 | |
059ad760 | 47 | static void spitz_ext_control(struct snd_soc_dapm_context *dapm) |
7fb290d0 | 48 | { |
1845a725 CK |
49 | snd_soc_dapm_mutex_lock(dapm); |
50 | ||
7fb290d0 | 51 | if (spitz_spk_func == SPITZ_SPK_ON) |
1845a725 | 52 | snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk"); |
7fb290d0 | 53 | else |
1845a725 | 54 | snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk"); |
7fb290d0 LG |
55 | |
56 | /* set up jack connection */ | |
57 | switch (spitz_jack_func) { | |
58 | case SPITZ_HP: | |
59 | /* enable and unmute hp jack, disable mic bias */ | |
1845a725 CK |
60 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); |
61 | snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack"); | |
62 | snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack"); | |
63 | snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack"); | |
fff14720 EM |
64 | gpio_set_value(SPITZ_GPIO_MUTE_L, 1); |
65 | gpio_set_value(SPITZ_GPIO_MUTE_R, 1); | |
7fb290d0 LG |
66 | break; |
67 | case SPITZ_MIC: | |
68 | /* enable mic jack and bias, mute hp */ | |
1845a725 CK |
69 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); |
70 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); | |
71 | snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack"); | |
72 | snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack"); | |
fff14720 EM |
73 | gpio_set_value(SPITZ_GPIO_MUTE_L, 0); |
74 | gpio_set_value(SPITZ_GPIO_MUTE_R, 0); | |
7fb290d0 LG |
75 | break; |
76 | case SPITZ_LINE: | |
77 | /* enable line jack, disable mic bias and mute hp */ | |
1845a725 CK |
78 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); |
79 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); | |
80 | snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack"); | |
81 | snd_soc_dapm_enable_pin_unlocked(dapm, "Line Jack"); | |
fff14720 EM |
82 | gpio_set_value(SPITZ_GPIO_MUTE_L, 0); |
83 | gpio_set_value(SPITZ_GPIO_MUTE_R, 0); | |
7fb290d0 LG |
84 | break; |
85 | case SPITZ_HEADSET: | |
86 | /* enable and unmute headset jack enable mic bias, mute L hp */ | |
1845a725 CK |
87 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); |
88 | snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack"); | |
89 | snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack"); | |
90 | snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack"); | |
fff14720 EM |
91 | gpio_set_value(SPITZ_GPIO_MUTE_L, 0); |
92 | gpio_set_value(SPITZ_GPIO_MUTE_R, 1); | |
7fb290d0 LG |
93 | break; |
94 | case SPITZ_HP_OFF: | |
95 | ||
96 | /* jack removed, everything off */ | |
1845a725 CK |
97 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack"); |
98 | snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack"); | |
99 | snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack"); | |
100 | snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack"); | |
fff14720 EM |
101 | gpio_set_value(SPITZ_GPIO_MUTE_L, 0); |
102 | gpio_set_value(SPITZ_GPIO_MUTE_R, 0); | |
7fb290d0 LG |
103 | break; |
104 | } | |
1845a725 CK |
105 | |
106 | snd_soc_dapm_sync_unlocked(dapm); | |
107 | ||
108 | snd_soc_dapm_mutex_unlock(dapm); | |
7fb290d0 LG |
109 | } |
110 | ||
111 | static int spitz_startup(struct snd_pcm_substream *substream) | |
112 | { | |
113 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
71a29560 | 114 | |
7fb290d0 | 115 | /* check the jack status at stream startup */ |
e14de47a | 116 | spitz_ext_control(&rtd->card->dapm); |
71a29560 | 117 | |
7fb290d0 LG |
118 | return 0; |
119 | } | |
120 | ||
97952f60 LG |
121 | static int spitz_hw_params(struct snd_pcm_substream *substream, |
122 | struct snd_pcm_hw_params *params) | |
123 | { | |
124 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
125 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
126 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
97952f60 LG |
127 | unsigned int clk = 0; |
128 | int ret = 0; | |
129 | ||
130 | switch (params_rate(params)) { | |
131 | case 8000: | |
132 | case 16000: | |
133 | case 48000: | |
134 | case 96000: | |
135 | clk = 12288000; | |
136 | break; | |
137 | case 11025: | |
138 | case 22050: | |
139 | case 44100: | |
140 | clk = 11289600; | |
141 | break; | |
142 | } | |
143 | ||
97952f60 | 144 | /* set the codec system clock for DAC and ADC */ |
64105cfd | 145 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk, |
97952f60 LG |
146 | SND_SOC_CLOCK_IN); |
147 | if (ret < 0) | |
148 | return ret; | |
149 | ||
150 | /* set the I2S system clock as input (unused) */ | |
64105cfd | 151 | ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, |
97952f60 LG |
152 | SND_SOC_CLOCK_IN); |
153 | if (ret < 0) | |
154 | return ret; | |
155 | ||
156 | return 0; | |
157 | } | |
158 | ||
943b7311 | 159 | static const struct snd_soc_ops spitz_ops = { |
7fb290d0 | 160 | .startup = spitz_startup, |
97952f60 | 161 | .hw_params = spitz_hw_params, |
7fb290d0 LG |
162 | }; |
163 | ||
164 | static int spitz_get_jack(struct snd_kcontrol *kcontrol, | |
165 | struct snd_ctl_elem_value *ucontrol) | |
166 | { | |
49a1ba16 | 167 | ucontrol->value.enumerated.item[0] = spitz_jack_func; |
7fb290d0 LG |
168 | return 0; |
169 | } | |
170 | ||
171 | static int spitz_set_jack(struct snd_kcontrol *kcontrol, | |
172 | struct snd_ctl_elem_value *ucontrol) | |
173 | { | |
0e66821f | 174 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
7fb290d0 | 175 | |
49a1ba16 | 176 | if (spitz_jack_func == ucontrol->value.enumerated.item[0]) |
7fb290d0 LG |
177 | return 0; |
178 | ||
49a1ba16 | 179 | spitz_jack_func = ucontrol->value.enumerated.item[0]; |
059ad760 | 180 | spitz_ext_control(&card->dapm); |
7fb290d0 LG |
181 | return 1; |
182 | } | |
183 | ||
184 | static int spitz_get_spk(struct snd_kcontrol *kcontrol, | |
185 | struct snd_ctl_elem_value *ucontrol) | |
186 | { | |
49a1ba16 | 187 | ucontrol->value.enumerated.item[0] = spitz_spk_func; |
7fb290d0 LG |
188 | return 0; |
189 | } | |
190 | ||
191 | static int spitz_set_spk(struct snd_kcontrol *kcontrol, | |
192 | struct snd_ctl_elem_value *ucontrol) | |
193 | { | |
059ad760 | 194 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
7fb290d0 | 195 | |
49a1ba16 | 196 | if (spitz_spk_func == ucontrol->value.enumerated.item[0]) |
7fb290d0 LG |
197 | return 0; |
198 | ||
49a1ba16 | 199 | spitz_spk_func = ucontrol->value.enumerated.item[0]; |
059ad760 | 200 | spitz_ext_control(&card->dapm); |
7fb290d0 LG |
201 | return 1; |
202 | } | |
203 | ||
338c7ed0 JN |
204 | static int spitz_mic_bias(struct snd_soc_dapm_widget *w, |
205 | struct snd_kcontrol *k, int event) | |
7fb290d0 | 206 | { |
04368d05 | 207 | gpio_set_value_cansleep(spitz_mic_gpio, SND_SOC_DAPM_EVENT_ON(event)); |
7fb290d0 LG |
208 | return 0; |
209 | } | |
210 | ||
211 | /* spitz machine dapm widgets */ | |
212 | static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { | |
213 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
214 | SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias), | |
215 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
216 | SND_SOC_DAPM_LINE("Line Jack", NULL), | |
217 | ||
218 | /* headset is a mic and mono headphone */ | |
219 | SND_SOC_DAPM_HP("Headset Jack", NULL), | |
220 | }; | |
221 | ||
222 | /* Spitz machine audio_map */ | |
7c274263 | 223 | static const struct snd_soc_dapm_route spitz_audio_map[] = { |
7fb290d0 LG |
224 | |
225 | /* headphone connected to LOUT1, ROUT1 */ | |
226 | {"Headphone Jack", NULL, "LOUT1"}, | |
227 | {"Headphone Jack", NULL, "ROUT1"}, | |
228 | ||
229 | /* headset connected to ROUT1 and LINPUT1 with bias (def below) */ | |
230 | {"Headset Jack", NULL, "ROUT1"}, | |
231 | ||
232 | /* ext speaker connected to LOUT2, ROUT2 */ | |
3e22e9d7 CG |
233 | {"Ext Spk", NULL, "ROUT2"}, |
234 | {"Ext Spk", NULL, "LOUT2"}, | |
7fb290d0 LG |
235 | |
236 | /* mic is connected to input 1 - with bias */ | |
237 | {"LINPUT1", NULL, "Mic Bias"}, | |
238 | {"Mic Bias", NULL, "Mic Jack"}, | |
239 | ||
240 | /* line is connected to input 1 - no bias */ | |
241 | {"LINPUT1", NULL, "Line Jack"}, | |
7fb290d0 LG |
242 | }; |
243 | ||
92be5810 LPC |
244 | static const char * const jack_function[] = {"Headphone", "Mic", "Line", |
245 | "Headset", "Off"}; | |
246 | static const char * const spk_function[] = {"On", "Off"}; | |
7fb290d0 LG |
247 | static const struct soc_enum spitz_enum[] = { |
248 | SOC_ENUM_SINGLE_EXT(5, jack_function), | |
249 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
250 | }; | |
251 | ||
252 | static const struct snd_kcontrol_new wm8750_spitz_controls[] = { | |
253 | SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack, | |
254 | spitz_set_jack), | |
255 | SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk, | |
256 | spitz_set_spk), | |
257 | }; | |
258 | ||
7fb290d0 LG |
259 | /* spitz digital audio interface glue - connects codec <--> CPU */ |
260 | static struct snd_soc_dai_link spitz_dai = { | |
261 | .name = "wm8750", | |
262 | .stream_name = "WM8750", | |
a3adfa00 | 263 | .cpu_dai_name = "pxa2xx-i2s", |
f0fba2ad LG |
264 | .codec_dai_name = "wm8750-hifi", |
265 | .platform_name = "pxa-pcm-audio", | |
dc5de62b | 266 | .codec_name = "wm8750.0-001b", |
c0e94231 AL |
267 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
268 | SND_SOC_DAIFMT_CBS_CFS, | |
97952f60 | 269 | .ops = &spitz_ops, |
7fb290d0 LG |
270 | }; |
271 | ||
272 | /* spitz audio machine driver */ | |
87506549 | 273 | static struct snd_soc_card snd_soc_spitz = { |
7fb290d0 | 274 | .name = "Spitz", |
561c6a17 | 275 | .owner = THIS_MODULE, |
7fb290d0 LG |
276 | .dai_link = &spitz_dai, |
277 | .num_links = 1, | |
7c274263 AL |
278 | |
279 | .controls = wm8750_spitz_controls, | |
280 | .num_controls = ARRAY_SIZE(wm8750_spitz_controls), | |
281 | .dapm_widgets = wm8750_dapm_widgets, | |
282 | .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets), | |
283 | .dapm_routes = spitz_audio_map, | |
284 | .num_dapm_routes = ARRAY_SIZE(spitz_audio_map), | |
c4b7586c | 285 | .fully_routed = true, |
7fb290d0 LG |
286 | }; |
287 | ||
ecf00151 | 288 | static int spitz_probe(struct platform_device *pdev) |
7fb290d0 | 289 | { |
ecf00151 | 290 | struct snd_soc_card *card = &snd_soc_spitz; |
7fb290d0 LG |
291 | int ret; |
292 | ||
ecf00151 | 293 | if (machine_is_akita()) |
04368d05 | 294 | spitz_mic_gpio = AKITA_GPIO_MIC_BIAS; |
ecf00151 DES |
295 | else |
296 | spitz_mic_gpio = SPITZ_GPIO_MIC_BIAS; | |
04368d05 MV |
297 | |
298 | ret = gpio_request(spitz_mic_gpio, "MIC GPIO"); | |
299 | if (ret) | |
300 | goto err1; | |
301 | ||
302 | ret = gpio_direction_output(spitz_mic_gpio, 0); | |
303 | if (ret) | |
304 | goto err2; | |
305 | ||
ecf00151 DES |
306 | card->dev = &pdev->dev; |
307 | ||
2fd7076a | 308 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
ecf00151 DES |
309 | if (ret) { |
310 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", | |
311 | ret); | |
04368d05 MV |
312 | goto err2; |
313 | } | |
7fb290d0 | 314 | |
04368d05 | 315 | return 0; |
7fb290d0 | 316 | |
04368d05 MV |
317 | err2: |
318 | gpio_free(spitz_mic_gpio); | |
319 | err1: | |
7fb290d0 LG |
320 | return ret; |
321 | } | |
322 | ||
ecf00151 | 323 | static int spitz_remove(struct platform_device *pdev) |
7fb290d0 | 324 | { |
04368d05 | 325 | gpio_free(spitz_mic_gpio); |
ecf00151 | 326 | return 0; |
7fb290d0 LG |
327 | } |
328 | ||
ecf00151 DES |
329 | static struct platform_driver spitz_driver = { |
330 | .driver = { | |
331 | .name = "spitz-audio", | |
ecf00151 DES |
332 | .pm = &snd_soc_pm_ops, |
333 | }, | |
334 | .probe = spitz_probe, | |
335 | .remove = spitz_remove, | |
336 | }; | |
337 | ||
338 | module_platform_driver(spitz_driver); | |
7fb290d0 LG |
339 | |
340 | MODULE_AUTHOR("Richard Purdie"); | |
341 | MODULE_DESCRIPTION("ALSA SoC Spitz"); | |
342 | MODULE_LICENSE("GPL"); | |
ecf00151 | 343 | MODULE_ALIAS("platform:spitz-audio"); |