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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 | ||
46 | static void poodle_ext_control(struct snd_soc_codec *codec) | |
47 | { | |
ce6120cc LG |
48 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
49 | ||
6e24dd93 LG |
50 | /* set up jack connection */ |
51 | if (poodle_jack_func == POODLE_HP) { | |
52 | /* set = unmute headphone */ | |
53 | locomo_gpio_write(&poodle_locomo_device.dev, | |
54 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | |
55 | locomo_gpio_write(&poodle_locomo_device.dev, | |
56 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | |
ce6120cc | 57 | snd_soc_dapm_enable_pin(dapm, "Headphone Jack"); |
6e24dd93 LG |
58 | } else { |
59 | locomo_gpio_write(&poodle_locomo_device.dev, | |
60 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | |
61 | locomo_gpio_write(&poodle_locomo_device.dev, | |
62 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | |
ce6120cc | 63 | snd_soc_dapm_disable_pin(dapm, "Headphone Jack"); |
6e24dd93 LG |
64 | } |
65 | ||
6e24dd93 | 66 | /* set the enpoints to their new connetion states */ |
a5302181 | 67 | if (poodle_spk_func == POODLE_SPK_ON) |
ce6120cc | 68 | snd_soc_dapm_enable_pin(dapm, "Ext Spk"); |
a5302181 | 69 | else |
ce6120cc | 70 | snd_soc_dapm_disable_pin(dapm, "Ext Spk"); |
6e24dd93 LG |
71 | |
72 | /* signal a DAPM event */ | |
ce6120cc | 73 | snd_soc_dapm_sync(dapm); |
6e24dd93 LG |
74 | } |
75 | ||
76 | static int poodle_startup(struct snd_pcm_substream *substream) | |
77 | { | |
78 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 79 | struct snd_soc_codec *codec = rtd->codec; |
6e24dd93 | 80 | |
71a29560 MB |
81 | mutex_lock(&codec->mutex); |
82 | ||
6e24dd93 LG |
83 | /* check the jack status at stream startup */ |
84 | poodle_ext_control(codec); | |
71a29560 MB |
85 | |
86 | mutex_unlock(&codec->mutex); | |
87 | ||
6e24dd93 LG |
88 | return 0; |
89 | } | |
90 | ||
91 | /* we need to unmute the HP at shutdown as the mute burns power on poodle */ | |
877db3c1 | 92 | static void poodle_shutdown(struct snd_pcm_substream *substream) |
6e24dd93 | 93 | { |
6e24dd93 LG |
94 | /* set = unmute headphone */ |
95 | locomo_gpio_write(&poodle_locomo_device.dev, | |
96 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | |
97 | locomo_gpio_write(&poodle_locomo_device.dev, | |
98 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | |
6e24dd93 LG |
99 | } |
100 | ||
73f40dc1 LG |
101 | static int poodle_hw_params(struct snd_pcm_substream *substream, |
102 | struct snd_pcm_hw_params *params) | |
103 | { | |
104 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
105 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
106 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
73f40dc1 LG |
107 | unsigned int clk = 0; |
108 | int ret = 0; | |
109 | ||
110 | switch (params_rate(params)) { | |
111 | case 8000: | |
112 | case 16000: | |
113 | case 48000: | |
114 | case 96000: | |
115 | clk = 12288000; | |
116 | break; | |
117 | case 11025: | |
118 | case 22050: | |
119 | case 44100: | |
120 | clk = 11289600; | |
121 | break; | |
122 | } | |
123 | ||
124 | /* set codec DAI configuration */ | |
64105cfd | 125 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
73f40dc1 LG |
126 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
127 | if (ret < 0) | |
128 | return ret; | |
129 | ||
130 | /* set cpu DAI configuration */ | |
64105cfd | 131 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
73f40dc1 LG |
132 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
133 | if (ret < 0) | |
134 | return ret; | |
135 | ||
136 | /* set the codec system clock for DAC and ADC */ | |
e7712510 | 137 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, clk, |
73f40dc1 LG |
138 | SND_SOC_CLOCK_IN); |
139 | if (ret < 0) | |
140 | return ret; | |
141 | ||
142 | /* set the I2S system clock as input (unused) */ | |
64105cfd | 143 | ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, |
73f40dc1 LG |
144 | SND_SOC_CLOCK_IN); |
145 | if (ret < 0) | |
146 | return ret; | |
147 | ||
148 | return 0; | |
149 | } | |
150 | ||
6e24dd93 LG |
151 | static struct snd_soc_ops poodle_ops = { |
152 | .startup = poodle_startup, | |
73f40dc1 | 153 | .hw_params = poodle_hw_params, |
6e24dd93 LG |
154 | .shutdown = poodle_shutdown, |
155 | }; | |
156 | ||
157 | static int poodle_get_jack(struct snd_kcontrol *kcontrol, | |
158 | struct snd_ctl_elem_value *ucontrol) | |
159 | { | |
160 | ucontrol->value.integer.value[0] = poodle_jack_func; | |
161 | return 0; | |
162 | } | |
163 | ||
164 | static int poodle_set_jack(struct snd_kcontrol *kcontrol, | |
165 | struct snd_ctl_elem_value *ucontrol) | |
166 | { | |
167 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
168 | ||
169 | if (poodle_jack_func == ucontrol->value.integer.value[0]) | |
170 | return 0; | |
171 | ||
172 | poodle_jack_func = ucontrol->value.integer.value[0]; | |
173 | poodle_ext_control(codec); | |
174 | return 1; | |
175 | } | |
176 | ||
177 | static int poodle_get_spk(struct snd_kcontrol *kcontrol, | |
178 | struct snd_ctl_elem_value *ucontrol) | |
179 | { | |
180 | ucontrol->value.integer.value[0] = poodle_spk_func; | |
181 | return 0; | |
182 | } | |
183 | ||
184 | static int poodle_set_spk(struct snd_kcontrol *kcontrol, | |
185 | struct snd_ctl_elem_value *ucontrol) | |
186 | { | |
187 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
188 | ||
189 | if (poodle_spk_func == ucontrol->value.integer.value[0]) | |
190 | return 0; | |
191 | ||
192 | poodle_spk_func = ucontrol->value.integer.value[0]; | |
193 | poodle_ext_control(codec); | |
194 | return 1; | |
195 | } | |
196 | ||
338c7ed0 JN |
197 | static int poodle_amp_event(struct snd_soc_dapm_widget *w, |
198 | struct snd_kcontrol *k, int event) | |
6e24dd93 LG |
199 | { |
200 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
201 | locomo_gpio_write(&poodle_locomo_device.dev, | |
202 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | |
203 | else | |
204 | locomo_gpio_write(&poodle_locomo_device.dev, | |
205 | POODLE_LOCOMO_GPIO_AMP_ON, 1); | |
206 | ||
207 | return 0; | |
208 | } | |
209 | ||
210 | /* poodle machine dapm widgets */ | |
211 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
212 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
213 | SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event), | |
214 | }; | |
215 | ||
25191c45 MB |
216 | /* Corgi machine connections to the codec pins */ |
217 | static const struct snd_soc_dapm_route audio_map[] = { | |
6e24dd93 LG |
218 | |
219 | /* headphone connected to LHPOUT1, RHPOUT1 */ | |
220 | {"Headphone Jack", NULL, "LHPOUT"}, | |
221 | {"Headphone Jack", NULL, "RHPOUT"}, | |
222 | ||
223 | /* speaker connected to LOUT, ROUT */ | |
224 | {"Ext Spk", NULL, "ROUT"}, | |
225 | {"Ext Spk", NULL, "LOUT"}, | |
6e24dd93 LG |
226 | }; |
227 | ||
228 | static const char *jack_function[] = {"Off", "Headphone"}; | |
229 | static const char *spk_function[] = {"Off", "On"}; | |
230 | static const struct soc_enum poodle_enum[] = { | |
231 | SOC_ENUM_SINGLE_EXT(2, jack_function), | |
232 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
233 | }; | |
234 | ||
877db3c1 | 235 | static const struct snd_kcontrol_new wm8731_poodle_controls[] = { |
6e24dd93 LG |
236 | SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack, |
237 | poodle_set_jack), | |
238 | SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk, | |
239 | poodle_set_spk), | |
240 | }; | |
241 | ||
242 | /* | |
243 | * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device | |
244 | */ | |
f0fba2ad | 245 | static int poodle_wm8731_init(struct snd_soc_pcm_runtime *rtd) |
6e24dd93 | 246 | { |
f0fba2ad | 247 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc | 248 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
eb5f6d75 | 249 | int err; |
6e24dd93 | 250 | |
ce6120cc LG |
251 | snd_soc_dapm_nc_pin(dapm, "LLINEIN"); |
252 | snd_soc_dapm_nc_pin(dapm, "RLINEIN"); | |
253 | snd_soc_dapm_enable_pin(dapm, "MICIN"); | |
6e24dd93 LG |
254 | |
255 | /* Add poodle specific controls */ | |
eb5f6d75 PZ |
256 | err = snd_soc_add_controls(codec, wm8731_poodle_controls, |
257 | ARRAY_SIZE(wm8731_poodle_controls)); | |
258 | if (err < 0) | |
259 | return err; | |
6e24dd93 LG |
260 | |
261 | /* Add poodle specific widgets */ | |
ce6120cc | 262 | snd_soc_dapm_new_controls(dapm, wm8731_dapm_widgets, |
25191c45 | 263 | ARRAY_SIZE(wm8731_dapm_widgets)); |
6e24dd93 LG |
264 | |
265 | /* Set up poodle specific audio path audio_map */ | |
ce6120cc | 266 | snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); |
6e24dd93 | 267 | |
6e24dd93 LG |
268 | return 0; |
269 | } | |
270 | ||
6e24dd93 LG |
271 | /* poodle digital audio interface glue - connects codec <--> CPU */ |
272 | static struct snd_soc_dai_link poodle_dai = { | |
273 | .name = "WM8731", | |
274 | .stream_name = "WM8731", | |
a2a0086d | 275 | .cpu_dai_name = "pxa2xx-i2s", |
1593d7dd | 276 | .codec_dai_name = "wm8731-hifi", |
f0fba2ad | 277 | .platform_name = "pxa-pcm-audio", |
99b59f3c | 278 | .codec_name = "wm8731.0-001b", |
6e24dd93 | 279 | .init = poodle_wm8731_init, |
73f40dc1 | 280 | .ops = &poodle_ops, |
6e24dd93 LG |
281 | }; |
282 | ||
283 | /* poodle audio machine driver */ | |
87506549 | 284 | static struct snd_soc_card snd_soc_poodle = { |
6e24dd93 LG |
285 | .name = "Poodle", |
286 | .dai_link = &poodle_dai, | |
287 | .num_links = 1, | |
f0fba2ad | 288 | .owner = THIS_MODULE, |
6e24dd93 LG |
289 | }; |
290 | ||
291 | static struct platform_device *poodle_snd_device; | |
292 | ||
293 | static int __init poodle_init(void) | |
294 | { | |
295 | int ret; | |
296 | ||
297 | if (!machine_is_poodle()) | |
298 | return -ENODEV; | |
299 | ||
300 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
301 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | |
302 | /* should we mute HP at startup - burning power ?*/ | |
303 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
304 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | |
305 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
306 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | |
307 | ||
308 | poodle_snd_device = platform_device_alloc("soc-audio", -1); | |
309 | if (!poodle_snd_device) | |
310 | return -ENOMEM; | |
311 | ||
f0fba2ad | 312 | platform_set_drvdata(poodle_snd_device, &snd_soc_poodle); |
6e24dd93 LG |
313 | ret = platform_device_add(poodle_snd_device); |
314 | ||
315 | if (ret) | |
316 | platform_device_put(poodle_snd_device); | |
317 | ||
318 | return ret; | |
319 | } | |
320 | ||
321 | static void __exit poodle_exit(void) | |
322 | { | |
323 | platform_device_unregister(poodle_snd_device); | |
324 | } | |
325 | ||
326 | module_init(poodle_init); | |
327 | module_exit(poodle_exit); | |
328 | ||
329 | /* Module information */ | |
330 | MODULE_AUTHOR("Richard Purdie"); | |
331 | MODULE_DESCRIPTION("ALSA SoC Poodle"); | |
332 | MODULE_LICENSE("GPL"); |