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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> | |
26 | #include <sound/soc-dapm.h> | |
27 | ||
28 | #include <asm/mach-types.h> | |
29 | #include <asm/hardware/locomo.h> | |
a09e64fb RK |
30 | #include <mach/poodle.h> |
31 | #include <mach/audio.h> | |
6e24dd93 LG |
32 | |
33 | #include "../codecs/wm8731.h" | |
73f40dc1 | 34 | #include "pxa2xx-i2s.h" |
6e24dd93 LG |
35 | |
36 | #define POODLE_HP 1 | |
37 | #define POODLE_HP_OFF 0 | |
38 | #define POODLE_SPK_ON 1 | |
39 | #define POODLE_SPK_OFF 0 | |
40 | ||
41 | /* audio clock in Hz - rounded from 12.235MHz */ | |
42 | #define POODLE_AUDIO_CLOCK 12288000 | |
43 | ||
44 | static int poodle_jack_func; | |
45 | static int poodle_spk_func; | |
46 | ||
47 | static void poodle_ext_control(struct snd_soc_codec *codec) | |
48 | { | |
6e24dd93 LG |
49 | /* set up jack connection */ |
50 | if (poodle_jack_func == POODLE_HP) { | |
51 | /* set = unmute headphone */ | |
52 | locomo_gpio_write(&poodle_locomo_device.dev, | |
53 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | |
54 | locomo_gpio_write(&poodle_locomo_device.dev, | |
55 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | |
a5302181 | 56 | snd_soc_dapm_enable_pin(codec, "Headphone Jack"); |
6e24dd93 LG |
57 | } else { |
58 | locomo_gpio_write(&poodle_locomo_device.dev, | |
59 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | |
60 | locomo_gpio_write(&poodle_locomo_device.dev, | |
61 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | |
a5302181 | 62 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); |
6e24dd93 LG |
63 | } |
64 | ||
6e24dd93 | 65 | /* set the enpoints to their new connetion states */ |
a5302181 LG |
66 | if (poodle_spk_func == POODLE_SPK_ON) |
67 | snd_soc_dapm_enable_pin(codec, "Ext Spk"); | |
68 | else | |
69 | snd_soc_dapm_disable_pin(codec, "Ext Spk"); | |
6e24dd93 LG |
70 | |
71 | /* signal a DAPM event */ | |
a5302181 | 72 | snd_soc_dapm_sync(codec); |
6e24dd93 LG |
73 | } |
74 | ||
75 | static int poodle_startup(struct snd_pcm_substream *substream) | |
76 | { | |
77 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 78 | struct snd_soc_codec *codec = rtd->codec; |
6e24dd93 | 79 | |
71a29560 MB |
80 | mutex_lock(&codec->mutex); |
81 | ||
6e24dd93 LG |
82 | /* check the jack status at stream startup */ |
83 | poodle_ext_control(codec); | |
71a29560 MB |
84 | |
85 | mutex_unlock(&codec->mutex); | |
86 | ||
6e24dd93 LG |
87 | return 0; |
88 | } | |
89 | ||
90 | /* we need to unmute the HP at shutdown as the mute burns power on poodle */ | |
877db3c1 | 91 | static void poodle_shutdown(struct snd_pcm_substream *substream) |
6e24dd93 | 92 | { |
6e24dd93 LG |
93 | /* set = unmute headphone */ |
94 | locomo_gpio_write(&poodle_locomo_device.dev, | |
95 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | |
96 | locomo_gpio_write(&poodle_locomo_device.dev, | |
97 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | |
6e24dd93 LG |
98 | } |
99 | ||
73f40dc1 LG |
100 | static int poodle_hw_params(struct snd_pcm_substream *substream, |
101 | struct snd_pcm_hw_params *params) | |
102 | { | |
103 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
104 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
105 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
73f40dc1 LG |
106 | unsigned int clk = 0; |
107 | int ret = 0; | |
108 | ||
109 | switch (params_rate(params)) { | |
110 | case 8000: | |
111 | case 16000: | |
112 | case 48000: | |
113 | case 96000: | |
114 | clk = 12288000; | |
115 | break; | |
116 | case 11025: | |
117 | case 22050: | |
118 | case 44100: | |
119 | clk = 11289600; | |
120 | break; | |
121 | } | |
122 | ||
123 | /* set codec DAI configuration */ | |
64105cfd | 124 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
73f40dc1 LG |
125 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
126 | if (ret < 0) | |
127 | return ret; | |
128 | ||
129 | /* set cpu DAI configuration */ | |
64105cfd | 130 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
73f40dc1 LG |
131 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
132 | if (ret < 0) | |
133 | return ret; | |
134 | ||
135 | /* set the codec system clock for DAC and ADC */ | |
e7712510 | 136 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, clk, |
73f40dc1 LG |
137 | SND_SOC_CLOCK_IN); |
138 | if (ret < 0) | |
139 | return ret; | |
140 | ||
141 | /* set the I2S system clock as input (unused) */ | |
64105cfd | 142 | ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, |
73f40dc1 LG |
143 | SND_SOC_CLOCK_IN); |
144 | if (ret < 0) | |
145 | return ret; | |
146 | ||
147 | return 0; | |
148 | } | |
149 | ||
6e24dd93 LG |
150 | static struct snd_soc_ops poodle_ops = { |
151 | .startup = poodle_startup, | |
73f40dc1 | 152 | .hw_params = poodle_hw_params, |
6e24dd93 LG |
153 | .shutdown = poodle_shutdown, |
154 | }; | |
155 | ||
156 | static int poodle_get_jack(struct snd_kcontrol *kcontrol, | |
157 | struct snd_ctl_elem_value *ucontrol) | |
158 | { | |
159 | ucontrol->value.integer.value[0] = poodle_jack_func; | |
160 | return 0; | |
161 | } | |
162 | ||
163 | static int poodle_set_jack(struct snd_kcontrol *kcontrol, | |
164 | struct snd_ctl_elem_value *ucontrol) | |
165 | { | |
166 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
167 | ||
168 | if (poodle_jack_func == ucontrol->value.integer.value[0]) | |
169 | return 0; | |
170 | ||
171 | poodle_jack_func = ucontrol->value.integer.value[0]; | |
172 | poodle_ext_control(codec); | |
173 | return 1; | |
174 | } | |
175 | ||
176 | static int poodle_get_spk(struct snd_kcontrol *kcontrol, | |
177 | struct snd_ctl_elem_value *ucontrol) | |
178 | { | |
179 | ucontrol->value.integer.value[0] = poodle_spk_func; | |
180 | return 0; | |
181 | } | |
182 | ||
183 | static int poodle_set_spk(struct snd_kcontrol *kcontrol, | |
184 | struct snd_ctl_elem_value *ucontrol) | |
185 | { | |
186 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
187 | ||
188 | if (poodle_spk_func == ucontrol->value.integer.value[0]) | |
189 | return 0; | |
190 | ||
191 | poodle_spk_func = ucontrol->value.integer.value[0]; | |
192 | poodle_ext_control(codec); | |
193 | return 1; | |
194 | } | |
195 | ||
338c7ed0 JN |
196 | static int poodle_amp_event(struct snd_soc_dapm_widget *w, |
197 | struct snd_kcontrol *k, int event) | |
6e24dd93 LG |
198 | { |
199 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
200 | locomo_gpio_write(&poodle_locomo_device.dev, | |
201 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | |
202 | else | |
203 | locomo_gpio_write(&poodle_locomo_device.dev, | |
204 | POODLE_LOCOMO_GPIO_AMP_ON, 1); | |
205 | ||
206 | return 0; | |
207 | } | |
208 | ||
209 | /* poodle machine dapm widgets */ | |
210 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
211 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
212 | SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event), | |
213 | }; | |
214 | ||
25191c45 MB |
215 | /* Corgi machine connections to the codec pins */ |
216 | static const struct snd_soc_dapm_route audio_map[] = { | |
6e24dd93 LG |
217 | |
218 | /* headphone connected to LHPOUT1, RHPOUT1 */ | |
219 | {"Headphone Jack", NULL, "LHPOUT"}, | |
220 | {"Headphone Jack", NULL, "RHPOUT"}, | |
221 | ||
222 | /* speaker connected to LOUT, ROUT */ | |
223 | {"Ext Spk", NULL, "ROUT"}, | |
224 | {"Ext Spk", NULL, "LOUT"}, | |
6e24dd93 LG |
225 | }; |
226 | ||
227 | static const char *jack_function[] = {"Off", "Headphone"}; | |
228 | static const char *spk_function[] = {"Off", "On"}; | |
229 | static const struct soc_enum poodle_enum[] = { | |
230 | SOC_ENUM_SINGLE_EXT(2, jack_function), | |
231 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
232 | }; | |
233 | ||
877db3c1 | 234 | static const struct snd_kcontrol_new wm8731_poodle_controls[] = { |
6e24dd93 LG |
235 | SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack, |
236 | poodle_set_jack), | |
237 | SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk, | |
238 | poodle_set_spk), | |
239 | }; | |
240 | ||
241 | /* | |
242 | * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device | |
243 | */ | |
f0fba2ad | 244 | static int poodle_wm8731_init(struct snd_soc_pcm_runtime *rtd) |
6e24dd93 | 245 | { |
f0fba2ad | 246 | struct snd_soc_codec *codec = rtd->codec; |
eb5f6d75 | 247 | int err; |
6e24dd93 | 248 | |
35f5e54d MB |
249 | snd_soc_dapm_nc_pin(codec, "LLINEIN"); |
250 | snd_soc_dapm_nc_pin(codec, "RLINEIN"); | |
a5302181 | 251 | snd_soc_dapm_enable_pin(codec, "MICIN"); |
6e24dd93 LG |
252 | |
253 | /* Add poodle specific controls */ | |
eb5f6d75 PZ |
254 | err = snd_soc_add_controls(codec, wm8731_poodle_controls, |
255 | ARRAY_SIZE(wm8731_poodle_controls)); | |
256 | if (err < 0) | |
257 | return err; | |
6e24dd93 LG |
258 | |
259 | /* Add poodle specific widgets */ | |
25191c45 MB |
260 | snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets, |
261 | ARRAY_SIZE(wm8731_dapm_widgets)); | |
6e24dd93 LG |
262 | |
263 | /* Set up poodle specific audio path audio_map */ | |
25191c45 | 264 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); |
6e24dd93 | 265 | |
a5302181 | 266 | snd_soc_dapm_sync(codec); |
6e24dd93 LG |
267 | return 0; |
268 | } | |
269 | ||
6e24dd93 LG |
270 | /* poodle digital audio interface glue - connects codec <--> CPU */ |
271 | static struct snd_soc_dai_link poodle_dai = { | |
272 | .name = "WM8731", | |
273 | .stream_name = "WM8731", | |
a2a0086d | 274 | .cpu_dai_name = "pxa2xx-i2s", |
1593d7dd | 275 | .codec_dai_name = "wm8731-hifi", |
f0fba2ad LG |
276 | .platform_name = "pxa-pcm-audio", |
277 | .codec_name = "wm8731-codec.0-001a", | |
6e24dd93 | 278 | .init = poodle_wm8731_init, |
73f40dc1 | 279 | .ops = &poodle_ops, |
6e24dd93 LG |
280 | }; |
281 | ||
282 | /* poodle audio machine driver */ | |
87506549 | 283 | static struct snd_soc_card snd_soc_poodle = { |
6e24dd93 LG |
284 | .name = "Poodle", |
285 | .dai_link = &poodle_dai, | |
286 | .num_links = 1, | |
f0fba2ad | 287 | .owner = THIS_MODULE, |
6e24dd93 LG |
288 | }; |
289 | ||
290 | static struct platform_device *poodle_snd_device; | |
291 | ||
292 | static int __init poodle_init(void) | |
293 | { | |
294 | int ret; | |
295 | ||
296 | if (!machine_is_poodle()) | |
297 | return -ENODEV; | |
298 | ||
299 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
300 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | |
301 | /* should we mute HP at startup - burning power ?*/ | |
302 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
303 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | |
304 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
305 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | |
306 | ||
307 | poodle_snd_device = platform_device_alloc("soc-audio", -1); | |
308 | if (!poodle_snd_device) | |
309 | return -ENOMEM; | |
310 | ||
f0fba2ad | 311 | platform_set_drvdata(poodle_snd_device, &snd_soc_poodle); |
6e24dd93 LG |
312 | ret = platform_device_add(poodle_snd_device); |
313 | ||
314 | if (ret) | |
315 | platform_device_put(poodle_snd_device); | |
316 | ||
317 | return ret; | |
318 | } | |
319 | ||
320 | static void __exit poodle_exit(void) | |
321 | { | |
322 | platform_device_unregister(poodle_snd_device); | |
323 | } | |
324 | ||
325 | module_init(poodle_init); | |
326 | module_exit(poodle_exit); | |
327 | ||
328 | /* Module information */ | |
329 | MODULE_AUTHOR("Richard Purdie"); | |
330 | MODULE_DESCRIPTION("ALSA SoC Poodle"); | |
331 | MODULE_LICENSE("GPL"); |