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6e24dd93 LG |
1 | /* |
2 | * poodle.c -- SoC audio for Poodle | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
5 | * Copyright 2005 Openedhand Ltd. | |
6 | * | |
d331124d | 7 | * Authors: Liam Girdwood <lrg@slimlogic.co.uk> |
6e24dd93 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 | * | |
15 | */ | |
16 | ||
17 | #include <linux/module.h> | |
18 | #include <linux/moduleparam.h> | |
19 | #include <linux/timer.h> | |
fc996757 | 20 | #include <linux/i2c.h> |
6e24dd93 LG |
21 | #include <linux/interrupt.h> |
22 | #include <linux/platform_device.h> | |
6e24dd93 LG |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/soc.h> | |
6e24dd93 LG |
26 | |
27 | #include <asm/mach-types.h> | |
28 | #include <asm/hardware/locomo.h> | |
a09e64fb RK |
29 | #include <mach/poodle.h> |
30 | #include <mach/audio.h> | |
6e24dd93 LG |
31 | |
32 | #include "../codecs/wm8731.h" | |
73f40dc1 | 33 | #include "pxa2xx-i2s.h" |
6e24dd93 LG |
34 | |
35 | #define POODLE_HP 1 | |
36 | #define POODLE_HP_OFF 0 | |
37 | #define POODLE_SPK_ON 1 | |
38 | #define POODLE_SPK_OFF 0 | |
39 | ||
40 | /* audio clock in Hz - rounded from 12.235MHz */ | |
41 | #define POODLE_AUDIO_CLOCK 12288000 | |
42 | ||
43 | static int poodle_jack_func; | |
44 | static int poodle_spk_func; | |
45 | ||
022658be | 46 | static void poodle_ext_control(struct snd_soc_dapm_context *dapm) |
6e24dd93 | 47 | { |
6e24dd93 LG |
48 | /* set up jack connection */ |
49 | if (poodle_jack_func == POODLE_HP) { | |
50 | /* set = unmute headphone */ | |
51 | locomo_gpio_write(&poodle_locomo_device.dev, | |
52 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | |
53 | locomo_gpio_write(&poodle_locomo_device.dev, | |
54 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | |
ce6120cc | 55 | snd_soc_dapm_enable_pin(dapm, "Headphone Jack"); |
6e24dd93 LG |
56 | } else { |
57 | locomo_gpio_write(&poodle_locomo_device.dev, | |
58 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | |
59 | locomo_gpio_write(&poodle_locomo_device.dev, | |
60 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | |
ce6120cc | 61 | snd_soc_dapm_disable_pin(dapm, "Headphone Jack"); |
6e24dd93 LG |
62 | } |
63 | ||
6e24dd93 | 64 | /* set the enpoints to their new connetion states */ |
a5302181 | 65 | if (poodle_spk_func == POODLE_SPK_ON) |
ce6120cc | 66 | snd_soc_dapm_enable_pin(dapm, "Ext Spk"); |
a5302181 | 67 | else |
ce6120cc | 68 | snd_soc_dapm_disable_pin(dapm, "Ext Spk"); |
6e24dd93 LG |
69 | |
70 | /* signal a DAPM event */ | |
ce6120cc | 71 | snd_soc_dapm_sync(dapm); |
6e24dd93 LG |
72 | } |
73 | ||
74 | static int poodle_startup(struct snd_pcm_substream *substream) | |
75 | { | |
76 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 77 | struct snd_soc_codec *codec = rtd->codec; |
6e24dd93 | 78 | |
71a29560 MB |
79 | mutex_lock(&codec->mutex); |
80 | ||
6e24dd93 | 81 | /* check the jack status at stream startup */ |
022658be | 82 | poodle_ext_control(&codec->dapm); |
71a29560 MB |
83 | |
84 | mutex_unlock(&codec->mutex); | |
85 | ||
6e24dd93 LG |
86 | return 0; |
87 | } | |
88 | ||
89 | /* we need to unmute the HP at shutdown as the mute burns power on poodle */ | |
877db3c1 | 90 | static void poodle_shutdown(struct snd_pcm_substream *substream) |
6e24dd93 | 91 | { |
6e24dd93 LG |
92 | /* set = unmute headphone */ |
93 | locomo_gpio_write(&poodle_locomo_device.dev, | |
94 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | |
95 | locomo_gpio_write(&poodle_locomo_device.dev, | |
96 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | |
6e24dd93 LG |
97 | } |
98 | ||
73f40dc1 LG |
99 | static int poodle_hw_params(struct snd_pcm_substream *substream, |
100 | struct snd_pcm_hw_params *params) | |
101 | { | |
102 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
103 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
104 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
73f40dc1 LG |
105 | unsigned int clk = 0; |
106 | int ret = 0; | |
107 | ||
108 | switch (params_rate(params)) { | |
109 | case 8000: | |
110 | case 16000: | |
111 | case 48000: | |
112 | case 96000: | |
113 | clk = 12288000; | |
114 | break; | |
115 | case 11025: | |
116 | case 22050: | |
117 | case 44100: | |
118 | clk = 11289600; | |
119 | break; | |
120 | } | |
121 | ||
73f40dc1 | 122 | /* set the codec system clock for DAC and ADC */ |
e7712510 | 123 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, clk, |
73f40dc1 LG |
124 | SND_SOC_CLOCK_IN); |
125 | if (ret < 0) | |
126 | return ret; | |
127 | ||
128 | /* set the I2S system clock as input (unused) */ | |
64105cfd | 129 | ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, |
73f40dc1 LG |
130 | SND_SOC_CLOCK_IN); |
131 | if (ret < 0) | |
132 | return ret; | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
6e24dd93 LG |
137 | static struct snd_soc_ops poodle_ops = { |
138 | .startup = poodle_startup, | |
73f40dc1 | 139 | .hw_params = poodle_hw_params, |
6e24dd93 LG |
140 | .shutdown = poodle_shutdown, |
141 | }; | |
142 | ||
143 | static int poodle_get_jack(struct snd_kcontrol *kcontrol, | |
144 | struct snd_ctl_elem_value *ucontrol) | |
145 | { | |
146 | ucontrol->value.integer.value[0] = poodle_jack_func; | |
147 | return 0; | |
148 | } | |
149 | ||
150 | static int poodle_set_jack(struct snd_kcontrol *kcontrol, | |
151 | struct snd_ctl_elem_value *ucontrol) | |
152 | { | |
022658be | 153 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
6e24dd93 LG |
154 | |
155 | if (poodle_jack_func == ucontrol->value.integer.value[0]) | |
156 | return 0; | |
157 | ||
158 | poodle_jack_func = ucontrol->value.integer.value[0]; | |
022658be | 159 | poodle_ext_control(&card->dapm); |
6e24dd93 LG |
160 | return 1; |
161 | } | |
162 | ||
163 | static int poodle_get_spk(struct snd_kcontrol *kcontrol, | |
164 | struct snd_ctl_elem_value *ucontrol) | |
165 | { | |
166 | ucontrol->value.integer.value[0] = poodle_spk_func; | |
167 | return 0; | |
168 | } | |
169 | ||
170 | static int poodle_set_spk(struct snd_kcontrol *kcontrol, | |
171 | struct snd_ctl_elem_value *ucontrol) | |
172 | { | |
022658be | 173 | struct snd_soc_card *card = snd_kcontrol_chip(kcontrol); |
6e24dd93 LG |
174 | |
175 | if (poodle_spk_func == ucontrol->value.integer.value[0]) | |
176 | return 0; | |
177 | ||
178 | poodle_spk_func = ucontrol->value.integer.value[0]; | |
022658be | 179 | poodle_ext_control(&card->dapm); |
6e24dd93 LG |
180 | return 1; |
181 | } | |
182 | ||
338c7ed0 JN |
183 | static int poodle_amp_event(struct snd_soc_dapm_widget *w, |
184 | struct snd_kcontrol *k, int event) | |
6e24dd93 LG |
185 | { |
186 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
187 | locomo_gpio_write(&poodle_locomo_device.dev, | |
188 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | |
189 | else | |
190 | locomo_gpio_write(&poodle_locomo_device.dev, | |
191 | POODLE_LOCOMO_GPIO_AMP_ON, 1); | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
196 | /* poodle machine dapm widgets */ | |
197 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
198 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
199 | SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event), | |
200 | }; | |
201 | ||
25191c45 | 202 | /* Corgi machine connections to the codec pins */ |
fe366d06 | 203 | static const struct snd_soc_dapm_route poodle_audio_map[] = { |
6e24dd93 LG |
204 | |
205 | /* headphone connected to LHPOUT1, RHPOUT1 */ | |
206 | {"Headphone Jack", NULL, "LHPOUT"}, | |
207 | {"Headphone Jack", NULL, "RHPOUT"}, | |
208 | ||
209 | /* speaker connected to LOUT, ROUT */ | |
210 | {"Ext Spk", NULL, "ROUT"}, | |
211 | {"Ext Spk", NULL, "LOUT"}, | |
6e24dd93 LG |
212 | }; |
213 | ||
214 | static const char *jack_function[] = {"Off", "Headphone"}; | |
215 | static const char *spk_function[] = {"Off", "On"}; | |
216 | static const struct soc_enum poodle_enum[] = { | |
217 | SOC_ENUM_SINGLE_EXT(2, jack_function), | |
218 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
219 | }; | |
220 | ||
877db3c1 | 221 | static const struct snd_kcontrol_new wm8731_poodle_controls[] = { |
6e24dd93 LG |
222 | SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack, |
223 | poodle_set_jack), | |
224 | SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk, | |
225 | poodle_set_spk), | |
226 | }; | |
227 | ||
228 | /* | |
229 | * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device | |
230 | */ | |
f0fba2ad | 231 | static int poodle_wm8731_init(struct snd_soc_pcm_runtime *rtd) |
6e24dd93 | 232 | { |
f0fba2ad | 233 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc | 234 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
6e24dd93 | 235 | |
ce6120cc LG |
236 | snd_soc_dapm_nc_pin(dapm, "LLINEIN"); |
237 | snd_soc_dapm_nc_pin(dapm, "RLINEIN"); | |
238 | snd_soc_dapm_enable_pin(dapm, "MICIN"); | |
6e24dd93 | 239 | |
6e24dd93 LG |
240 | return 0; |
241 | } | |
242 | ||
6e24dd93 LG |
243 | /* poodle digital audio interface glue - connects codec <--> CPU */ |
244 | static struct snd_soc_dai_link poodle_dai = { | |
245 | .name = "WM8731", | |
246 | .stream_name = "WM8731", | |
a2a0086d | 247 | .cpu_dai_name = "pxa2xx-i2s", |
1593d7dd | 248 | .codec_dai_name = "wm8731-hifi", |
f0fba2ad | 249 | .platform_name = "pxa-pcm-audio", |
99b59f3c | 250 | .codec_name = "wm8731.0-001b", |
6e24dd93 | 251 | .init = poodle_wm8731_init, |
87063dfc AL |
252 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
253 | SND_SOC_DAIFMT_CBS_CFS, | |
73f40dc1 | 254 | .ops = &poodle_ops, |
6e24dd93 LG |
255 | }; |
256 | ||
257 | /* poodle audio machine driver */ | |
2445ecc3 | 258 | static struct snd_soc_card poodle = { |
6e24dd93 LG |
259 | .name = "Poodle", |
260 | .dai_link = &poodle_dai, | |
261 | .num_links = 1, | |
f0fba2ad | 262 | .owner = THIS_MODULE, |
fe366d06 AL |
263 | |
264 | .controls = wm8731_poodle_controls, | |
265 | .num_controls = ARRAY_SIZE(wm8731_poodle_controls), | |
266 | .dapm_widgets = wm8731_dapm_widgets, | |
267 | .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets), | |
268 | .dapm_routes = poodle_audio_map, | |
269 | .num_dapm_routes = ARRAY_SIZE(poodle_audio_map), | |
6e24dd93 LG |
270 | }; |
271 | ||
570f6fe1 | 272 | static int poodle_probe(struct platform_device *pdev) |
6e24dd93 | 273 | { |
2445ecc3 | 274 | struct snd_soc_card *card = &poodle; |
6e24dd93 LG |
275 | int ret; |
276 | ||
6e24dd93 LG |
277 | locomo_gpio_set_dir(&poodle_locomo_device.dev, |
278 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | |
279 | /* should we mute HP at startup - burning power ?*/ | |
280 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
281 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | |
282 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
283 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | |
284 | ||
2445ecc3 | 285 | card->dev = &pdev->dev; |
6e24dd93 | 286 | |
2445ecc3 | 287 | ret = snd_soc_register_card(card); |
6e24dd93 | 288 | if (ret) |
2445ecc3 AL |
289 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", |
290 | ret); | |
6e24dd93 LG |
291 | return ret; |
292 | } | |
293 | ||
570f6fe1 | 294 | static int poodle_remove(struct platform_device *pdev) |
6e24dd93 | 295 | { |
2445ecc3 AL |
296 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
297 | ||
298 | snd_soc_unregister_card(card); | |
299 | return 0; | |
6e24dd93 LG |
300 | } |
301 | ||
2445ecc3 AL |
302 | static struct platform_driver poodle_driver = { |
303 | .driver = { | |
304 | .name = "poodle-audio", | |
305 | .owner = THIS_MODULE, | |
306 | }, | |
307 | .probe = poodle_probe, | |
570f6fe1 | 308 | .remove = poodle_remove, |
2445ecc3 AL |
309 | }; |
310 | ||
311 | module_platform_driver(poodle_driver); | |
6e24dd93 LG |
312 | |
313 | /* Module information */ | |
314 | MODULE_AUTHOR("Richard Purdie"); | |
315 | MODULE_DESCRIPTION("ALSA SoC Poodle"); | |
316 | MODULE_LICENSE("GPL"); | |
2445ecc3 | 317 | MODULE_ALIAS("platform:poodle-audio"); |