diff options
Diffstat (limited to 'sound/soc/pxa')
-rw-r--r-- | sound/soc/pxa/poodle.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c new file mode 100644 index 000000000000..ee9336086820 --- /dev/null +++ b/sound/soc/pxa/poodle.c | |||
@@ -0,0 +1,329 @@ | |||
1 | /* | ||
2 | * poodle.c -- SoC audio for Poodle | ||
3 | * | ||
4 | * Copyright 2005 Wolfson Microelectronics PLC. | ||
5 | * Copyright 2005 Openedhand Ltd. | ||
6 | * | ||
7 | * Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com> | ||
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 <sound/driver.h> | ||
23 | #include <sound/core.h> | ||
24 | #include <sound/pcm.h> | ||
25 | #include <sound/soc.h> | ||
26 | #include <sound/soc-dapm.h> | ||
27 | |||
28 | #include <asm/mach-types.h> | ||
29 | #include <asm/hardware/locomo.h> | ||
30 | #include <asm/arch/pxa-regs.h> | ||
31 | #include <asm/arch/hardware.h> | ||
32 | #include <asm/arch/poodle.h> | ||
33 | #include <asm/arch/audio.h> | ||
34 | |||
35 | #include "../codecs/wm8731.h" | ||
36 | #include "pxa2xx-pcm.h" | ||
37 | |||
38 | #define POODLE_HP 1 | ||
39 | #define POODLE_HP_OFF 0 | ||
40 | #define POODLE_SPK_ON 1 | ||
41 | #define POODLE_SPK_OFF 0 | ||
42 | |||
43 | /* audio clock in Hz - rounded from 12.235MHz */ | ||
44 | #define POODLE_AUDIO_CLOCK 12288000 | ||
45 | |||
46 | static int poodle_jack_func; | ||
47 | static int poodle_spk_func; | ||
48 | |||
49 | static void poodle_ext_control(struct snd_soc_codec *codec) | ||
50 | { | ||
51 | int spk = 0; | ||
52 | |||
53 | /* set up jack connection */ | ||
54 | if (poodle_jack_func == POODLE_HP) { | ||
55 | /* set = unmute headphone */ | ||
56 | locomo_gpio_write(&poodle_locomo_device.dev, | ||
57 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | ||
58 | locomo_gpio_write(&poodle_locomo_device.dev, | ||
59 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | ||
60 | snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 1); | ||
61 | } else { | ||
62 | locomo_gpio_write(&poodle_locomo_device.dev, | ||
63 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | ||
64 | locomo_gpio_write(&poodle_locomo_device.dev, | ||
65 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | ||
66 | snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); | ||
67 | } | ||
68 | |||
69 | if (poodle_spk_func == POODLE_SPK_ON) | ||
70 | spk = 1; | ||
71 | |||
72 | /* set the enpoints to their new connetion states */ | ||
73 | snd_soc_dapm_set_endpoint(codec, "Ext Spk", spk); | ||
74 | |||
75 | /* signal a DAPM event */ | ||
76 | snd_soc_dapm_sync_endpoints(codec); | ||
77 | } | ||
78 | |||
79 | static int poodle_startup(struct snd_pcm_substream *substream) | ||
80 | { | ||
81 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | ||
82 | struct snd_soc_codec *codec = rtd->socdev->codec; | ||
83 | |||
84 | /* check the jack status at stream startup */ | ||
85 | poodle_ext_control(codec); | ||
86 | return 0; | ||
87 | } | ||
88 | |||
89 | /* we need to unmute the HP at shutdown as the mute burns power on poodle */ | ||
90 | static int poodle_shutdown(struct snd_pcm_substream *substream) | ||
91 | { | ||
92 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | ||
93 | struct snd_soc_codec *codec = rtd->socdev->codec; | ||
94 | |||
95 | /* set = unmute headphone */ | ||
96 | locomo_gpio_write(&poodle_locomo_device.dev, | ||
97 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | ||
98 | locomo_gpio_write(&poodle_locomo_device.dev, | ||
99 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | ||
100 | return 0; | ||
101 | } | ||
102 | |||
103 | static struct snd_soc_ops poodle_ops = { | ||
104 | .startup = poodle_startup, | ||
105 | .shutdown = poodle_shutdown, | ||
106 | }; | ||
107 | |||
108 | static int poodle_get_jack(struct snd_kcontrol *kcontrol, | ||
109 | struct snd_ctl_elem_value *ucontrol) | ||
110 | { | ||
111 | ucontrol->value.integer.value[0] = poodle_jack_func; | ||
112 | return 0; | ||
113 | } | ||
114 | |||
115 | static int poodle_set_jack(struct snd_kcontrol *kcontrol, | ||
116 | struct snd_ctl_elem_value *ucontrol) | ||
117 | { | ||
118 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | ||
119 | |||
120 | if (poodle_jack_func == ucontrol->value.integer.value[0]) | ||
121 | return 0; | ||
122 | |||
123 | poodle_jack_func = ucontrol->value.integer.value[0]; | ||
124 | poodle_ext_control(codec); | ||
125 | return 1; | ||
126 | } | ||
127 | |||
128 | static int poodle_get_spk(struct snd_kcontrol *kcontrol, | ||
129 | struct snd_ctl_elem_value *ucontrol) | ||
130 | { | ||
131 | ucontrol->value.integer.value[0] = poodle_spk_func; | ||
132 | return 0; | ||
133 | } | ||
134 | |||
135 | static int poodle_set_spk(struct snd_kcontrol *kcontrol, | ||
136 | struct snd_ctl_elem_value *ucontrol) | ||
137 | { | ||
138 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | ||
139 | |||
140 | if (poodle_spk_func == ucontrol->value.integer.value[0]) | ||
141 | return 0; | ||
142 | |||
143 | poodle_spk_func = ucontrol->value.integer.value[0]; | ||
144 | poodle_ext_control(codec); | ||
145 | return 1; | ||
146 | } | ||
147 | |||
148 | static int poodle_amp_event(struct snd_soc_dapm_widget *w, int event) | ||
149 | { | ||
150 | if (SND_SOC_DAPM_EVENT_ON(event)) | ||
151 | locomo_gpio_write(&poodle_locomo_device.dev, | ||
152 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | ||
153 | else | ||
154 | locomo_gpio_write(&poodle_locomo_device.dev, | ||
155 | POODLE_LOCOMO_GPIO_AMP_ON, 1); | ||
156 | |||
157 | return 0; | ||
158 | } | ||
159 | |||
160 | /* poodle machine dapm widgets */ | ||
161 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | ||
162 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | ||
163 | SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event), | ||
164 | }; | ||
165 | |||
166 | /* Corgi machine audio_mapnections to the codec pins */ | ||
167 | static const char *audio_map[][3] = { | ||
168 | |||
169 | /* headphone connected to LHPOUT1, RHPOUT1 */ | ||
170 | {"Headphone Jack", NULL, "LHPOUT"}, | ||
171 | {"Headphone Jack", NULL, "RHPOUT"}, | ||
172 | |||
173 | /* speaker connected to LOUT, ROUT */ | ||
174 | {"Ext Spk", NULL, "ROUT"}, | ||
175 | {"Ext Spk", NULL, "LOUT"}, | ||
176 | |||
177 | {NULL, NULL, NULL}, | ||
178 | }; | ||
179 | |||
180 | static const char *jack_function[] = {"Off", "Headphone"}; | ||
181 | static const char *spk_function[] = {"Off", "On"}; | ||
182 | static const struct soc_enum poodle_enum[] = { | ||
183 | SOC_ENUM_SINGLE_EXT(2, jack_function), | ||
184 | SOC_ENUM_SINGLE_EXT(2, spk_function), | ||
185 | }; | ||
186 | |||
187 | static const snd_kcontrol_new_t wm8731_poodle_controls[] = { | ||
188 | SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack, | ||
189 | poodle_set_jack), | ||
190 | SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk, | ||
191 | poodle_set_spk), | ||
192 | }; | ||
193 | |||
194 | /* | ||
195 | * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device | ||
196 | */ | ||
197 | static int poodle_wm8731_init(struct snd_soc_codec *codec) | ||
198 | { | ||
199 | int i, err; | ||
200 | |||
201 | snd_soc_dapm_set_endpoint(codec, "LLINEIN", 0); | ||
202 | snd_soc_dapm_set_endpoint(codec, "RLINEIN", 0); | ||
203 | snd_soc_dapm_set_endpoint(codec, "MICIN", 1); | ||
204 | |||
205 | /* Add poodle specific controls */ | ||
206 | for (i = 0; i < ARRAY_SIZE(wm8731_poodle_controls); i++) { | ||
207 | err = snd_ctl_add(codec->card, | ||
208 | snd_soc_cnew(&wm8731_poodle_controls[i],codec, NULL)); | ||
209 | if (err < 0) | ||
210 | return err; | ||
211 | } | ||
212 | |||
213 | /* Add poodle specific widgets */ | ||
214 | for (i = 0; i < ARRAY_SIZE(wm8731_dapm_widgets); i++) { | ||
215 | snd_soc_dapm_new_control(codec, &wm8731_dapm_widgets[i]); | ||
216 | } | ||
217 | |||
218 | /* Set up poodle specific audio path audio_map */ | ||
219 | for (i = 0; audio_map[i][0] != NULL; i++) { | ||
220 | snd_soc_dapm_connect_input(codec, audio_map[i][0], | ||
221 | audio_map[i][1], audio_map[i][2]); | ||
222 | } | ||
223 | |||
224 | snd_soc_dapm_sync_endpoints(codec); | ||
225 | return 0; | ||
226 | } | ||
227 | |||
228 | static unsigned int poodle_config_sysclk(struct snd_soc_pcm_runtime *rtd, | ||
229 | struct snd_soc_clock_info *info) | ||
230 | { | ||
231 | if (info->bclk_master & SND_SOC_DAIFMT_CBS_CFS) { | ||
232 | /* pxa2xx is i2s master */ | ||
233 | switch (info->rate) { | ||
234 | case 44100: | ||
235 | case 88200: | ||
236 | /* configure codec digital filters for 44.1, 88.2 */ | ||
237 | rtd->codec_dai->config_sysclk(rtd->codec_dai, info, | ||
238 | 11289600); | ||
239 | break; | ||
240 | default: | ||
241 | /* configure codec digital filters for all other rates */ | ||
242 | rtd->codec_dai->config_sysclk(rtd->codec_dai, info, | ||
243 | POODLE_AUDIO_CLOCK); | ||
244 | break; | ||
245 | } | ||
246 | return rtd->cpu_dai->config_sysclk(rtd->cpu_dai, info, | ||
247 | POODLE_AUDIO_CLOCK); | ||
248 | } else { | ||
249 | /* codec is i2s master - | ||
250 | * only configure codec DAI clock and filters */ | ||
251 | return rtd->codec_dai->config_sysclk(rtd->codec_dai, info, | ||
252 | POODLE_AUDIO_CLOCK); | ||
253 | } | ||
254 | } | ||
255 | |||
256 | /* poodle digital audio interface glue - connects codec <--> CPU */ | ||
257 | static struct snd_soc_dai_link poodle_dai = { | ||
258 | .name = "WM8731", | ||
259 | .stream_name = "WM8731", | ||
260 | .cpu_dai = &pxa_i2s_dai, | ||
261 | .codec_dai = &wm8731_dai, | ||
262 | .init = poodle_wm8731_init, | ||
263 | .config_sysclk = poodle_config_sysclk, | ||
264 | }; | ||
265 | |||
266 | /* poodle audio machine driver */ | ||
267 | static struct snd_soc_machine snd_soc_machine_poodle = { | ||
268 | .name = "Poodle", | ||
269 | .dai_link = &poodle_dai, | ||
270 | .num_links = 1, | ||
271 | .ops = &poodle_ops, | ||
272 | }; | ||
273 | |||
274 | /* poodle audio private data */ | ||
275 | static struct wm8731_setup_data poodle_wm8731_setup = { | ||
276 | .i2c_address = 0x1b, | ||
277 | }; | ||
278 | |||
279 | /* poodle audio subsystem */ | ||
280 | static struct snd_soc_device poodle_snd_devdata = { | ||
281 | .machine = &snd_soc_machine_poodle, | ||
282 | .platform = &pxa2xx_soc_platform, | ||
283 | .codec_dev = &soc_codec_dev_wm8731, | ||
284 | .codec_data = &poodle_wm8731_setup, | ||
285 | }; | ||
286 | |||
287 | static struct platform_device *poodle_snd_device; | ||
288 | |||
289 | static int __init poodle_init(void) | ||
290 | { | ||
291 | int ret; | ||
292 | |||
293 | if (!machine_is_poodle()) | ||
294 | return -ENODEV; | ||
295 | |||
296 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | ||
297 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | ||
298 | /* should we mute HP at startup - burning power ?*/ | ||
299 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | ||
300 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | ||
301 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | ||
302 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | ||
303 | |||
304 | poodle_snd_device = platform_device_alloc("soc-audio", -1); | ||
305 | if (!poodle_snd_device) | ||
306 | return -ENOMEM; | ||
307 | |||
308 | platform_set_drvdata(poodle_snd_device, &poodle_snd_devdata); | ||
309 | poodle_snd_devdata.dev = &poodle_snd_device->dev; | ||
310 | ret = platform_device_add(poodle_snd_device); | ||
311 | |||
312 | if (ret) | ||
313 | platform_device_put(poodle_snd_device); | ||
314 | |||
315 | return ret; | ||
316 | } | ||
317 | |||
318 | static void __exit poodle_exit(void) | ||
319 | { | ||
320 | platform_device_unregister(poodle_snd_device); | ||
321 | } | ||
322 | |||
323 | module_init(poodle_init); | ||
324 | module_exit(poodle_exit); | ||
325 | |||
326 | /* Module information */ | ||
327 | MODULE_AUTHOR("Richard Purdie"); | ||
328 | MODULE_DESCRIPTION("ALSA SoC Poodle"); | ||
329 | MODULE_LICENSE("GPL"); | ||