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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> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/platform_device.h> | |
6e24dd93 LG |
22 | #include <sound/core.h> |
23 | #include <sound/pcm.h> | |
24 | #include <sound/soc.h> | |
25 | #include <sound/soc-dapm.h> | |
26 | ||
27 | #include <asm/mach-types.h> | |
28 | #include <asm/hardware/locomo.h> | |
a09e64fb RK |
29 | #include <mach/pxa-regs.h> |
30 | #include <mach/hardware.h> | |
31 | #include <mach/poodle.h> | |
32 | #include <mach/audio.h> | |
6e24dd93 LG |
33 | |
34 | #include "../codecs/wm8731.h" | |
35 | #include "pxa2xx-pcm.h" | |
73f40dc1 | 36 | #include "pxa2xx-i2s.h" |
6e24dd93 LG |
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 | { | |
6e24dd93 LG |
51 | /* set up jack connection */ |
52 | if (poodle_jack_func == POODLE_HP) { | |
53 | /* set = unmute headphone */ | |
54 | locomo_gpio_write(&poodle_locomo_device.dev, | |
55 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | |
56 | locomo_gpio_write(&poodle_locomo_device.dev, | |
57 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | |
a5302181 | 58 | snd_soc_dapm_enable_pin(codec, "Headphone Jack"); |
6e24dd93 LG |
59 | } else { |
60 | locomo_gpio_write(&poodle_locomo_device.dev, | |
61 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | |
62 | locomo_gpio_write(&poodle_locomo_device.dev, | |
63 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | |
a5302181 | 64 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); |
6e24dd93 LG |
65 | } |
66 | ||
6e24dd93 | 67 | /* set the enpoints to their new connetion states */ |
a5302181 LG |
68 | if (poodle_spk_func == POODLE_SPK_ON) |
69 | snd_soc_dapm_enable_pin(codec, "Ext Spk"); | |
70 | else | |
71 | snd_soc_dapm_disable_pin(codec, "Ext Spk"); | |
6e24dd93 LG |
72 | |
73 | /* signal a DAPM event */ | |
a5302181 | 74 | snd_soc_dapm_sync(codec); |
6e24dd93 LG |
75 | } |
76 | ||
77 | static int poodle_startup(struct snd_pcm_substream *substream) | |
78 | { | |
79 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
80 | struct snd_soc_codec *codec = rtd->socdev->codec; | |
81 | ||
82 | /* check the jack status at stream startup */ | |
83 | poodle_ext_control(codec); | |
84 | return 0; | |
85 | } | |
86 | ||
87 | /* we need to unmute the HP at shutdown as the mute burns power on poodle */ | |
877db3c1 | 88 | static void poodle_shutdown(struct snd_pcm_substream *substream) |
6e24dd93 | 89 | { |
6e24dd93 LG |
90 | /* set = unmute headphone */ |
91 | locomo_gpio_write(&poodle_locomo_device.dev, | |
92 | POODLE_LOCOMO_GPIO_MUTE_L, 1); | |
93 | locomo_gpio_write(&poodle_locomo_device.dev, | |
94 | POODLE_LOCOMO_GPIO_MUTE_R, 1); | |
6e24dd93 LG |
95 | } |
96 | ||
73f40dc1 LG |
97 | static int poodle_hw_params(struct snd_pcm_substream *substream, |
98 | struct snd_pcm_hw_params *params) | |
99 | { | |
100 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
917f93ac LG |
101 | struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; |
102 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; | |
73f40dc1 LG |
103 | unsigned int clk = 0; |
104 | int ret = 0; | |
105 | ||
106 | switch (params_rate(params)) { | |
107 | case 8000: | |
108 | case 16000: | |
109 | case 48000: | |
110 | case 96000: | |
111 | clk = 12288000; | |
112 | break; | |
113 | case 11025: | |
114 | case 22050: | |
115 | case 44100: | |
116 | clk = 11289600; | |
117 | break; | |
118 | } | |
119 | ||
120 | /* set codec DAI configuration */ | |
64105cfd | 121 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
73f40dc1 LG |
122 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
123 | if (ret < 0) | |
124 | return ret; | |
125 | ||
126 | /* set cpu DAI configuration */ | |
64105cfd | 127 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
73f40dc1 LG |
128 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
129 | if (ret < 0) | |
130 | return ret; | |
131 | ||
132 | /* set the codec system clock for DAC and ADC */ | |
64105cfd | 133 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK, clk, |
73f40dc1 LG |
134 | SND_SOC_CLOCK_IN); |
135 | if (ret < 0) | |
136 | return ret; | |
137 | ||
138 | /* set the I2S system clock as input (unused) */ | |
64105cfd | 139 | ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, |
73f40dc1 LG |
140 | SND_SOC_CLOCK_IN); |
141 | if (ret < 0) | |
142 | return ret; | |
143 | ||
144 | return 0; | |
145 | } | |
146 | ||
6e24dd93 LG |
147 | static struct snd_soc_ops poodle_ops = { |
148 | .startup = poodle_startup, | |
73f40dc1 | 149 | .hw_params = poodle_hw_params, |
6e24dd93 LG |
150 | .shutdown = poodle_shutdown, |
151 | }; | |
152 | ||
153 | static int poodle_get_jack(struct snd_kcontrol *kcontrol, | |
154 | struct snd_ctl_elem_value *ucontrol) | |
155 | { | |
156 | ucontrol->value.integer.value[0] = poodle_jack_func; | |
157 | return 0; | |
158 | } | |
159 | ||
160 | static int poodle_set_jack(struct snd_kcontrol *kcontrol, | |
161 | struct snd_ctl_elem_value *ucontrol) | |
162 | { | |
163 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
164 | ||
165 | if (poodle_jack_func == ucontrol->value.integer.value[0]) | |
166 | return 0; | |
167 | ||
168 | poodle_jack_func = ucontrol->value.integer.value[0]; | |
169 | poodle_ext_control(codec); | |
170 | return 1; | |
171 | } | |
172 | ||
173 | static int poodle_get_spk(struct snd_kcontrol *kcontrol, | |
174 | struct snd_ctl_elem_value *ucontrol) | |
175 | { | |
176 | ucontrol->value.integer.value[0] = poodle_spk_func; | |
177 | return 0; | |
178 | } | |
179 | ||
180 | static int poodle_set_spk(struct snd_kcontrol *kcontrol, | |
181 | struct snd_ctl_elem_value *ucontrol) | |
182 | { | |
183 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
184 | ||
185 | if (poodle_spk_func == ucontrol->value.integer.value[0]) | |
186 | return 0; | |
187 | ||
188 | poodle_spk_func = ucontrol->value.integer.value[0]; | |
189 | poodle_ext_control(codec); | |
190 | return 1; | |
191 | } | |
192 | ||
338c7ed0 JN |
193 | static int poodle_amp_event(struct snd_soc_dapm_widget *w, |
194 | struct snd_kcontrol *k, int event) | |
6e24dd93 LG |
195 | { |
196 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
197 | locomo_gpio_write(&poodle_locomo_device.dev, | |
198 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | |
199 | else | |
200 | locomo_gpio_write(&poodle_locomo_device.dev, | |
201 | POODLE_LOCOMO_GPIO_AMP_ON, 1); | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
206 | /* poodle machine dapm widgets */ | |
207 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
208 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
209 | SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event), | |
210 | }; | |
211 | ||
25191c45 MB |
212 | /* Corgi machine connections to the codec pins */ |
213 | static const struct snd_soc_dapm_route audio_map[] = { | |
6e24dd93 LG |
214 | |
215 | /* headphone connected to LHPOUT1, RHPOUT1 */ | |
216 | {"Headphone Jack", NULL, "LHPOUT"}, | |
217 | {"Headphone Jack", NULL, "RHPOUT"}, | |
218 | ||
219 | /* speaker connected to LOUT, ROUT */ | |
220 | {"Ext Spk", NULL, "ROUT"}, | |
221 | {"Ext Spk", NULL, "LOUT"}, | |
6e24dd93 LG |
222 | }; |
223 | ||
224 | static const char *jack_function[] = {"Off", "Headphone"}; | |
225 | static const char *spk_function[] = {"Off", "On"}; | |
226 | static const struct soc_enum poodle_enum[] = { | |
227 | SOC_ENUM_SINGLE_EXT(2, jack_function), | |
228 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
229 | }; | |
230 | ||
877db3c1 | 231 | static const struct snd_kcontrol_new wm8731_poodle_controls[] = { |
6e24dd93 LG |
232 | SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack, |
233 | poodle_set_jack), | |
234 | SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk, | |
235 | poodle_set_spk), | |
236 | }; | |
237 | ||
238 | /* | |
239 | * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device | |
240 | */ | |
241 | static int poodle_wm8731_init(struct snd_soc_codec *codec) | |
242 | { | |
243 | int i, err; | |
244 | ||
35f5e54d MB |
245 | snd_soc_dapm_nc_pin(codec, "LLINEIN"); |
246 | snd_soc_dapm_nc_pin(codec, "RLINEIN"); | |
a5302181 | 247 | snd_soc_dapm_enable_pin(codec, "MICIN"); |
6e24dd93 LG |
248 | |
249 | /* Add poodle specific controls */ | |
250 | for (i = 0; i < ARRAY_SIZE(wm8731_poodle_controls); i++) { | |
251 | err = snd_ctl_add(codec->card, | |
29e36e49 | 252 | snd_soc_cnew(&wm8731_poodle_controls[i], codec, NULL)); |
6e24dd93 LG |
253 | if (err < 0) |
254 | return err; | |
255 | } | |
256 | ||
257 | /* Add poodle specific widgets */ | |
25191c45 MB |
258 | snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets, |
259 | ARRAY_SIZE(wm8731_dapm_widgets)); | |
6e24dd93 LG |
260 | |
261 | /* Set up poodle specific audio path audio_map */ | |
25191c45 | 262 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); |
6e24dd93 | 263 | |
a5302181 | 264 | snd_soc_dapm_sync(codec); |
6e24dd93 LG |
265 | return 0; |
266 | } | |
267 | ||
6e24dd93 LG |
268 | /* poodle digital audio interface glue - connects codec <--> CPU */ |
269 | static struct snd_soc_dai_link poodle_dai = { | |
270 | .name = "WM8731", | |
271 | .stream_name = "WM8731", | |
272 | .cpu_dai = &pxa_i2s_dai, | |
273 | .codec_dai = &wm8731_dai, | |
274 | .init = poodle_wm8731_init, | |
73f40dc1 | 275 | .ops = &poodle_ops, |
6e24dd93 LG |
276 | }; |
277 | ||
278 | /* poodle audio machine driver */ | |
87506549 | 279 | static struct snd_soc_card snd_soc_poodle = { |
6e24dd93 LG |
280 | .name = "Poodle", |
281 | .dai_link = &poodle_dai, | |
282 | .num_links = 1, | |
6e24dd93 LG |
283 | }; |
284 | ||
285 | /* poodle audio private data */ | |
286 | static struct wm8731_setup_data poodle_wm8731_setup = { | |
81297c8a | 287 | .i2c_bus = 0, |
6e24dd93 LG |
288 | .i2c_address = 0x1b, |
289 | }; | |
290 | ||
291 | /* poodle audio subsystem */ | |
292 | static struct snd_soc_device poodle_snd_devdata = { | |
87506549 | 293 | .card = &snd_soc_poodle, |
6e24dd93 LG |
294 | .platform = &pxa2xx_soc_platform, |
295 | .codec_dev = &soc_codec_dev_wm8731, | |
296 | .codec_data = &poodle_wm8731_setup, | |
297 | }; | |
298 | ||
299 | static struct platform_device *poodle_snd_device; | |
300 | ||
301 | static int __init poodle_init(void) | |
302 | { | |
303 | int ret; | |
304 | ||
305 | if (!machine_is_poodle()) | |
306 | return -ENODEV; | |
307 | ||
308 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
309 | POODLE_LOCOMO_GPIO_AMP_ON, 0); | |
310 | /* should we mute HP at startup - burning power ?*/ | |
311 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
312 | POODLE_LOCOMO_GPIO_MUTE_L, 0); | |
313 | locomo_gpio_set_dir(&poodle_locomo_device.dev, | |
314 | POODLE_LOCOMO_GPIO_MUTE_R, 0); | |
315 | ||
316 | poodle_snd_device = platform_device_alloc("soc-audio", -1); | |
317 | if (!poodle_snd_device) | |
318 | return -ENOMEM; | |
319 | ||
320 | platform_set_drvdata(poodle_snd_device, &poodle_snd_devdata); | |
321 | poodle_snd_devdata.dev = &poodle_snd_device->dev; | |
322 | ret = platform_device_add(poodle_snd_device); | |
323 | ||
324 | if (ret) | |
325 | platform_device_put(poodle_snd_device); | |
326 | ||
327 | return ret; | |
328 | } | |
329 | ||
330 | static void __exit poodle_exit(void) | |
331 | { | |
332 | platform_device_unregister(poodle_snd_device); | |
333 | } | |
334 | ||
335 | module_init(poodle_init); | |
336 | module_exit(poodle_exit); | |
337 | ||
338 | /* Module information */ | |
339 | MODULE_AUTHOR("Richard Purdie"); | |
340 | MODULE_DESCRIPTION("ALSA SoC Poodle"); | |
341 | MODULE_LICENSE("GPL"); |