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7fb290d0 LG |
1 | /* |
2 | * spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita | |
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 | * Revision history | |
16 | * 30th Nov 2005 Initial version. | |
17 | * | |
18 | */ | |
19 | ||
20 | #include <linux/module.h> | |
21 | #include <linux/moduleparam.h> | |
22 | #include <linux/timer.h> | |
23 | #include <linux/interrupt.h> | |
24 | #include <linux/platform_device.h> | |
7fb290d0 LG |
25 | #include <sound/core.h> |
26 | #include <sound/pcm.h> | |
27 | #include <sound/soc.h> | |
28 | #include <sound/soc-dapm.h> | |
29 | ||
30 | #include <asm/mach-types.h> | |
31 | #include <asm/hardware/scoop.h> | |
32 | #include <asm/arch/pxa-regs.h> | |
33 | #include <asm/arch/hardware.h> | |
34 | #include <asm/arch/akita.h> | |
35 | #include <asm/arch/spitz.h> | |
7fb290d0 LG |
36 | #include "../codecs/wm8750.h" |
37 | #include "pxa2xx-pcm.h" | |
97952f60 | 38 | #include "pxa2xx-i2s.h" |
7fb290d0 LG |
39 | |
40 | #define SPITZ_HP 0 | |
41 | #define SPITZ_MIC 1 | |
42 | #define SPITZ_LINE 2 | |
43 | #define SPITZ_HEADSET 3 | |
44 | #define SPITZ_HP_OFF 4 | |
45 | #define SPITZ_SPK_ON 0 | |
46 | #define SPITZ_SPK_OFF 1 | |
47 | ||
48 | /* audio clock in Hz - rounded from 12.235MHz */ | |
49 | #define SPITZ_AUDIO_CLOCK 12288000 | |
50 | ||
51 | static int spitz_jack_func; | |
52 | static int spitz_spk_func; | |
53 | ||
54 | static void spitz_ext_control(struct snd_soc_codec *codec) | |
55 | { | |
56 | if (spitz_spk_func == SPITZ_SPK_ON) | |
57 | snd_soc_dapm_set_endpoint(codec, "Ext Spk", 1); | |
58 | else | |
59 | snd_soc_dapm_set_endpoint(codec, "Ext Spk", 0); | |
60 | ||
61 | /* set up jack connection */ | |
62 | switch (spitz_jack_func) { | |
63 | case SPITZ_HP: | |
64 | /* enable and unmute hp jack, disable mic bias */ | |
65 | snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0); | |
66 | snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0); | |
67 | snd_soc_dapm_set_endpoint(codec, "Line Jack", 0); | |
68 | snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 1); | |
69 | set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); | |
70 | set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); | |
71 | break; | |
72 | case SPITZ_MIC: | |
73 | /* enable mic jack and bias, mute hp */ | |
74 | snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); | |
75 | snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0); | |
76 | snd_soc_dapm_set_endpoint(codec, "Line Jack", 0); | |
77 | snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1); | |
78 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); | |
79 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); | |
80 | break; | |
81 | case SPITZ_LINE: | |
82 | /* enable line jack, disable mic bias and mute hp */ | |
83 | snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); | |
84 | snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0); | |
85 | snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0); | |
86 | snd_soc_dapm_set_endpoint(codec, "Line Jack", 1); | |
87 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); | |
88 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); | |
89 | break; | |
90 | case SPITZ_HEADSET: | |
91 | /* enable and unmute headset jack enable mic bias, mute L hp */ | |
92 | snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); | |
93 | snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1); | |
94 | snd_soc_dapm_set_endpoint(codec, "Line Jack", 0); | |
95 | snd_soc_dapm_set_endpoint(codec, "Headset Jack", 1); | |
96 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); | |
97 | set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); | |
98 | break; | |
99 | case SPITZ_HP_OFF: | |
100 | ||
101 | /* jack removed, everything off */ | |
102 | snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); | |
103 | snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0); | |
104 | snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0); | |
105 | snd_soc_dapm_set_endpoint(codec, "Line Jack", 0); | |
106 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); | |
107 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); | |
108 | break; | |
109 | } | |
110 | snd_soc_dapm_sync_endpoints(codec); | |
111 | } | |
112 | ||
113 | static int spitz_startup(struct snd_pcm_substream *substream) | |
114 | { | |
115 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
116 | struct snd_soc_codec *codec = rtd->socdev->codec; | |
117 | ||
118 | /* check the jack status at stream startup */ | |
119 | spitz_ext_control(codec); | |
120 | return 0; | |
121 | } | |
122 | ||
97952f60 LG |
123 | static int spitz_hw_params(struct snd_pcm_substream *substream, |
124 | struct snd_pcm_hw_params *params) | |
125 | { | |
126 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
127 | struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai; | |
128 | struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; | |
129 | unsigned int clk = 0; | |
130 | int ret = 0; | |
131 | ||
132 | switch (params_rate(params)) { | |
133 | case 8000: | |
134 | case 16000: | |
135 | case 48000: | |
136 | case 96000: | |
137 | clk = 12288000; | |
138 | break; | |
139 | case 11025: | |
140 | case 22050: | |
141 | case 44100: | |
142 | clk = 11289600; | |
143 | break; | |
144 | } | |
145 | ||
146 | /* set codec DAI configuration */ | |
147 | ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | | |
148 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); | |
149 | if (ret < 0) | |
150 | return ret; | |
151 | ||
152 | /* set cpu DAI configuration */ | |
153 | ret = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | | |
154 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); | |
155 | if (ret < 0) | |
156 | return ret; | |
157 | ||
158 | /* set the codec system clock for DAC and ADC */ | |
159 | ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8750_SYSCLK, clk, | |
160 | SND_SOC_CLOCK_IN); | |
161 | if (ret < 0) | |
162 | return ret; | |
163 | ||
164 | /* set the I2S system clock as input (unused) */ | |
165 | ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, | |
166 | SND_SOC_CLOCK_IN); | |
167 | if (ret < 0) | |
168 | return ret; | |
169 | ||
170 | return 0; | |
171 | } | |
172 | ||
7fb290d0 LG |
173 | static struct snd_soc_ops spitz_ops = { |
174 | .startup = spitz_startup, | |
97952f60 | 175 | .hw_params = spitz_hw_params, |
7fb290d0 LG |
176 | }; |
177 | ||
178 | static int spitz_get_jack(struct snd_kcontrol *kcontrol, | |
179 | struct snd_ctl_elem_value *ucontrol) | |
180 | { | |
181 | ucontrol->value.integer.value[0] = spitz_jack_func; | |
182 | return 0; | |
183 | } | |
184 | ||
185 | static int spitz_set_jack(struct snd_kcontrol *kcontrol, | |
186 | struct snd_ctl_elem_value *ucontrol) | |
187 | { | |
188 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
189 | ||
190 | if (spitz_jack_func == ucontrol->value.integer.value[0]) | |
191 | return 0; | |
192 | ||
193 | spitz_jack_func = ucontrol->value.integer.value[0]; | |
194 | spitz_ext_control(codec); | |
195 | return 1; | |
196 | } | |
197 | ||
198 | static int spitz_get_spk(struct snd_kcontrol *kcontrol, | |
199 | struct snd_ctl_elem_value *ucontrol) | |
200 | { | |
201 | ucontrol->value.integer.value[0] = spitz_spk_func; | |
202 | return 0; | |
203 | } | |
204 | ||
205 | static int spitz_set_spk(struct snd_kcontrol *kcontrol, | |
206 | struct snd_ctl_elem_value *ucontrol) | |
207 | { | |
208 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
209 | ||
210 | if (spitz_spk_func == ucontrol->value.integer.value[0]) | |
211 | return 0; | |
212 | ||
213 | spitz_spk_func = ucontrol->value.integer.value[0]; | |
214 | spitz_ext_control(codec); | |
215 | return 1; | |
216 | } | |
217 | ||
218 | static int spitz_mic_bias(struct snd_soc_dapm_widget *w, int event) | |
219 | { | |
220 | if (machine_is_borzoi() || machine_is_spitz()) { | |
221 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
222 | set_scoop_gpio(&spitzscoop2_device.dev, | |
223 | SPITZ_SCP2_MIC_BIAS); | |
224 | else | |
225 | reset_scoop_gpio(&spitzscoop2_device.dev, | |
226 | SPITZ_SCP2_MIC_BIAS); | |
227 | } | |
228 | ||
229 | if (machine_is_akita()) { | |
230 | if (SND_SOC_DAPM_EVENT_ON(event)) | |
231 | akita_set_ioexp(&akitaioexp_device.dev, | |
232 | AKITA_IOEXP_MIC_BIAS); | |
233 | else | |
234 | akita_reset_ioexp(&akitaioexp_device.dev, | |
235 | AKITA_IOEXP_MIC_BIAS); | |
236 | } | |
237 | return 0; | |
238 | } | |
239 | ||
240 | /* spitz machine dapm widgets */ | |
241 | static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { | |
242 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
243 | SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias), | |
244 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
245 | SND_SOC_DAPM_LINE("Line Jack", NULL), | |
246 | ||
247 | /* headset is a mic and mono headphone */ | |
248 | SND_SOC_DAPM_HP("Headset Jack", NULL), | |
249 | }; | |
250 | ||
251 | /* Spitz machine audio_map */ | |
252 | static const char *audio_map[][3] = { | |
253 | ||
254 | /* headphone connected to LOUT1, ROUT1 */ | |
255 | {"Headphone Jack", NULL, "LOUT1"}, | |
256 | {"Headphone Jack", NULL, "ROUT1"}, | |
257 | ||
258 | /* headset connected to ROUT1 and LINPUT1 with bias (def below) */ | |
259 | {"Headset Jack", NULL, "ROUT1"}, | |
260 | ||
261 | /* ext speaker connected to LOUT2, ROUT2 */ | |
262 | {"Ext Spk", NULL , "ROUT2"}, | |
263 | {"Ext Spk", NULL , "LOUT2"}, | |
264 | ||
265 | /* mic is connected to input 1 - with bias */ | |
266 | {"LINPUT1", NULL, "Mic Bias"}, | |
267 | {"Mic Bias", NULL, "Mic Jack"}, | |
268 | ||
269 | /* line is connected to input 1 - no bias */ | |
270 | {"LINPUT1", NULL, "Line Jack"}, | |
271 | ||
272 | {NULL, NULL, NULL}, | |
273 | }; | |
274 | ||
275 | static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset", | |
276 | "Off"}; | |
277 | static const char *spk_function[] = {"On", "Off"}; | |
278 | static const struct soc_enum spitz_enum[] = { | |
279 | SOC_ENUM_SINGLE_EXT(5, jack_function), | |
280 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
281 | }; | |
282 | ||
283 | static const struct snd_kcontrol_new wm8750_spitz_controls[] = { | |
284 | SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack, | |
285 | spitz_set_jack), | |
286 | SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk, | |
287 | spitz_set_spk), | |
288 | }; | |
289 | ||
290 | /* | |
291 | * Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device | |
292 | */ | |
293 | static int spitz_wm8750_init(struct snd_soc_codec *codec) | |
294 | { | |
295 | int i, err; | |
296 | ||
297 | /* NC codec pins */ | |
298 | snd_soc_dapm_set_endpoint(codec, "RINPUT1", 0); | |
299 | snd_soc_dapm_set_endpoint(codec, "LINPUT2", 0); | |
300 | snd_soc_dapm_set_endpoint(codec, "RINPUT2", 0); | |
301 | snd_soc_dapm_set_endpoint(codec, "LINPUT3", 0); | |
302 | snd_soc_dapm_set_endpoint(codec, "RINPUT3", 0); | |
303 | snd_soc_dapm_set_endpoint(codec, "OUT3", 0); | |
304 | snd_soc_dapm_set_endpoint(codec, "MONO", 0); | |
305 | ||
306 | /* Add spitz specific controls */ | |
307 | for (i = 0; i < ARRAY_SIZE(wm8750_spitz_controls); i++) { | |
308 | err = snd_ctl_add(codec->card, | |
309 | snd_soc_cnew(&wm8750_spitz_controls[i], codec, NULL)); | |
310 | if (err < 0) | |
311 | return err; | |
312 | } | |
313 | ||
314 | /* Add spitz specific widgets */ | |
315 | for (i = 0; i < ARRAY_SIZE(wm8750_dapm_widgets); i++) { | |
316 | snd_soc_dapm_new_control(codec, &wm8750_dapm_widgets[i]); | |
317 | } | |
318 | ||
319 | /* Set up spitz specific audio path audio_map */ | |
320 | for (i = 0; audio_map[i][0] != NULL; i++) { | |
321 | snd_soc_dapm_connect_input(codec, audio_map[i][0], | |
322 | audio_map[i][1], audio_map[i][2]); | |
323 | } | |
324 | ||
325 | snd_soc_dapm_sync_endpoints(codec); | |
326 | return 0; | |
327 | } | |
328 | ||
7fb290d0 LG |
329 | /* spitz digital audio interface glue - connects codec <--> CPU */ |
330 | static struct snd_soc_dai_link spitz_dai = { | |
331 | .name = "wm8750", | |
332 | .stream_name = "WM8750", | |
333 | .cpu_dai = &pxa_i2s_dai, | |
334 | .codec_dai = &wm8750_dai, | |
335 | .init = spitz_wm8750_init, | |
97952f60 | 336 | .ops = &spitz_ops, |
7fb290d0 LG |
337 | }; |
338 | ||
339 | /* spitz audio machine driver */ | |
340 | static struct snd_soc_machine snd_soc_machine_spitz = { | |
341 | .name = "Spitz", | |
342 | .dai_link = &spitz_dai, | |
343 | .num_links = 1, | |
7fb290d0 LG |
344 | }; |
345 | ||
346 | /* spitz audio private data */ | |
347 | static struct wm8750_setup_data spitz_wm8750_setup = { | |
348 | .i2c_address = 0x1b, | |
349 | }; | |
350 | ||
351 | /* spitz audio subsystem */ | |
352 | static struct snd_soc_device spitz_snd_devdata = { | |
353 | .machine = &snd_soc_machine_spitz, | |
354 | .platform = &pxa2xx_soc_platform, | |
355 | .codec_dev = &soc_codec_dev_wm8750, | |
356 | .codec_data = &spitz_wm8750_setup, | |
357 | }; | |
358 | ||
359 | static struct platform_device *spitz_snd_device; | |
360 | ||
361 | static int __init spitz_init(void) | |
362 | { | |
363 | int ret; | |
364 | ||
365 | if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita())) | |
366 | return -ENODEV; | |
367 | ||
368 | spitz_snd_device = platform_device_alloc("soc-audio", -1); | |
369 | if (!spitz_snd_device) | |
370 | return -ENOMEM; | |
371 | ||
372 | platform_set_drvdata(spitz_snd_device, &spitz_snd_devdata); | |
373 | spitz_snd_devdata.dev = &spitz_snd_device->dev; | |
374 | ret = platform_device_add(spitz_snd_device); | |
375 | ||
376 | if (ret) | |
377 | platform_device_put(spitz_snd_device); | |
378 | ||
379 | return ret; | |
380 | } | |
381 | ||
382 | static void __exit spitz_exit(void) | |
383 | { | |
384 | platform_device_unregister(spitz_snd_device); | |
385 | } | |
386 | ||
387 | module_init(spitz_init); | |
388 | module_exit(spitz_exit); | |
389 | ||
390 | MODULE_AUTHOR("Richard Purdie"); | |
391 | MODULE_DESCRIPTION("ALSA SoC Spitz"); | |
392 | MODULE_LICENSE("GPL"); |