2 * spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
4 * Copyright 2005 Wolfson Microelectronics PLC.
5 * Copyright 2005 Openedhand Ltd.
7 * Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
8 * Richard Purdie <richard@openedhand.com>
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.
16 * 30th Nov 2005 Initial version.
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>
25 #include <sound/driver.h>
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/soc.h>
29 #include <sound/soc-dapm.h>
31 #include <asm/mach-types.h>
32 #include <asm/hardware/scoop.h>
33 #include <asm/arch/pxa-regs.h>
34 #include <asm/arch/hardware.h>
35 #include <asm/arch/akita.h>
36 #include <asm/arch/spitz.h>
37 #include <asm/mach-types.h>
38 #include "../codecs/wm8750.h"
39 #include "pxa2xx-pcm.h"
40 #include "pxa2xx-i2s.h"
45 #define SPITZ_HEADSET 3
46 #define SPITZ_HP_OFF 4
47 #define SPITZ_SPK_ON 0
48 #define SPITZ_SPK_OFF 1
50 /* audio clock in Hz - rounded from 12.235MHz */
51 #define SPITZ_AUDIO_CLOCK 12288000
53 static int spitz_jack_func;
54 static int spitz_spk_func;
56 static void spitz_ext_control(struct snd_soc_codec *codec)
58 if (spitz_spk_func == SPITZ_SPK_ON)
59 snd_soc_dapm_set_endpoint(codec, "Ext Spk", 1);
61 snd_soc_dapm_set_endpoint(codec, "Ext Spk", 0);
63 /* set up jack connection */
64 switch (spitz_jack_func) {
66 /* enable and unmute hp jack, disable mic bias */
67 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
68 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
69 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
70 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 1);
71 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
72 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
75 /* enable mic jack and bias, mute hp */
76 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
77 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
78 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
79 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1);
80 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
81 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
84 /* enable line jack, disable mic bias and mute hp */
85 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
86 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
87 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
88 snd_soc_dapm_set_endpoint(codec, "Line Jack", 1);
89 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
90 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
93 /* enable and unmute headset jack enable mic bias, mute L hp */
94 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
95 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1);
96 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
97 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 1);
98 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
99 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
103 /* jack removed, everything off */
104 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
105 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
106 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
107 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
108 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
109 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
112 snd_soc_dapm_sync_endpoints(codec);
115 static int spitz_startup(struct snd_pcm_substream *substream)
117 struct snd_soc_pcm_runtime *rtd = substream->private_data;
118 struct snd_soc_codec *codec = rtd->socdev->codec;
120 /* check the jack status at stream startup */
121 spitz_ext_control(codec);
125 static int spitz_hw_params(struct snd_pcm_substream *substream,
126 struct snd_pcm_hw_params *params)
128 struct snd_soc_pcm_runtime *rtd = substream->private_data;
129 struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
130 struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
131 unsigned int clk = 0;
134 switch (params_rate(params)) {
148 /* set codec DAI configuration */
149 ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
150 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
154 /* set cpu DAI configuration */
155 ret = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
156 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
160 /* set the codec system clock for DAC and ADC */
161 ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8750_SYSCLK, clk,
166 /* set the I2S system clock as input (unused) */
167 ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
175 static struct snd_soc_ops spitz_ops = {
176 .startup = spitz_startup,
177 .hw_params = spitz_hw_params,
180 static int spitz_get_jack(struct snd_kcontrol *kcontrol,
181 struct snd_ctl_elem_value *ucontrol)
183 ucontrol->value.integer.value[0] = spitz_jack_func;
187 static int spitz_set_jack(struct snd_kcontrol *kcontrol,
188 struct snd_ctl_elem_value *ucontrol)
190 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
192 if (spitz_jack_func == ucontrol->value.integer.value[0])
195 spitz_jack_func = ucontrol->value.integer.value[0];
196 spitz_ext_control(codec);
200 static int spitz_get_spk(struct snd_kcontrol *kcontrol,
201 struct snd_ctl_elem_value *ucontrol)
203 ucontrol->value.integer.value[0] = spitz_spk_func;
207 static int spitz_set_spk(struct snd_kcontrol *kcontrol,
208 struct snd_ctl_elem_value *ucontrol)
210 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
212 if (spitz_spk_func == ucontrol->value.integer.value[0])
215 spitz_spk_func = ucontrol->value.integer.value[0];
216 spitz_ext_control(codec);
220 static int spitz_mic_bias(struct snd_soc_dapm_widget *w, int event)
222 if (machine_is_borzoi() || machine_is_spitz()) {
223 if (SND_SOC_DAPM_EVENT_ON(event))
224 set_scoop_gpio(&spitzscoop2_device.dev,
225 SPITZ_SCP2_MIC_BIAS);
227 reset_scoop_gpio(&spitzscoop2_device.dev,
228 SPITZ_SCP2_MIC_BIAS);
231 if (machine_is_akita()) {
232 if (SND_SOC_DAPM_EVENT_ON(event))
233 akita_set_ioexp(&akitaioexp_device.dev,
234 AKITA_IOEXP_MIC_BIAS);
236 akita_reset_ioexp(&akitaioexp_device.dev,
237 AKITA_IOEXP_MIC_BIAS);
242 /* spitz machine dapm widgets */
243 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
244 SND_SOC_DAPM_HP("Headphone Jack", NULL),
245 SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
246 SND_SOC_DAPM_SPK("Ext Spk", NULL),
247 SND_SOC_DAPM_LINE("Line Jack", NULL),
249 /* headset is a mic and mono headphone */
250 SND_SOC_DAPM_HP("Headset Jack", NULL),
253 /* Spitz machine audio_map */
254 static const char *audio_map[][3] = {
256 /* headphone connected to LOUT1, ROUT1 */
257 {"Headphone Jack", NULL, "LOUT1"},
258 {"Headphone Jack", NULL, "ROUT1"},
260 /* headset connected to ROUT1 and LINPUT1 with bias (def below) */
261 {"Headset Jack", NULL, "ROUT1"},
263 /* ext speaker connected to LOUT2, ROUT2 */
264 {"Ext Spk", NULL , "ROUT2"},
265 {"Ext Spk", NULL , "LOUT2"},
267 /* mic is connected to input 1 - with bias */
268 {"LINPUT1", NULL, "Mic Bias"},
269 {"Mic Bias", NULL, "Mic Jack"},
271 /* line is connected to input 1 - no bias */
272 {"LINPUT1", NULL, "Line Jack"},
277 static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
279 static const char *spk_function[] = {"On", "Off"};
280 static const struct soc_enum spitz_enum[] = {
281 SOC_ENUM_SINGLE_EXT(5, jack_function),
282 SOC_ENUM_SINGLE_EXT(2, spk_function),
285 static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
286 SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
288 SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
293 * Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
295 static int spitz_wm8750_init(struct snd_soc_codec *codec)
300 snd_soc_dapm_set_endpoint(codec, "RINPUT1", 0);
301 snd_soc_dapm_set_endpoint(codec, "LINPUT2", 0);
302 snd_soc_dapm_set_endpoint(codec, "RINPUT2", 0);
303 snd_soc_dapm_set_endpoint(codec, "LINPUT3", 0);
304 snd_soc_dapm_set_endpoint(codec, "RINPUT3", 0);
305 snd_soc_dapm_set_endpoint(codec, "OUT3", 0);
306 snd_soc_dapm_set_endpoint(codec, "MONO", 0);
308 /* Add spitz specific controls */
309 for (i = 0; i < ARRAY_SIZE(wm8750_spitz_controls); i++) {
310 err = snd_ctl_add(codec->card,
311 snd_soc_cnew(&wm8750_spitz_controls[i], codec, NULL));
316 /* Add spitz specific widgets */
317 for (i = 0; i < ARRAY_SIZE(wm8750_dapm_widgets); i++) {
318 snd_soc_dapm_new_control(codec, &wm8750_dapm_widgets[i]);
321 /* Set up spitz specific audio path audio_map */
322 for (i = 0; audio_map[i][0] != NULL; i++) {
323 snd_soc_dapm_connect_input(codec, audio_map[i][0],
324 audio_map[i][1], audio_map[i][2]);
327 snd_soc_dapm_sync_endpoints(codec);
331 /* spitz digital audio interface glue - connects codec <--> CPU */
332 static struct snd_soc_dai_link spitz_dai = {
334 .stream_name = "WM8750",
335 .cpu_dai = &pxa_i2s_dai,
336 .codec_dai = &wm8750_dai,
337 .init = spitz_wm8750_init,
341 /* spitz audio machine driver */
342 static struct snd_soc_machine snd_soc_machine_spitz = {
344 .dai_link = &spitz_dai,
348 /* spitz audio private data */
349 static struct wm8750_setup_data spitz_wm8750_setup = {
353 /* spitz audio subsystem */
354 static struct snd_soc_device spitz_snd_devdata = {
355 .machine = &snd_soc_machine_spitz,
356 .platform = &pxa2xx_soc_platform,
357 .codec_dev = &soc_codec_dev_wm8750,
358 .codec_data = &spitz_wm8750_setup,
361 static struct platform_device *spitz_snd_device;
363 static int __init spitz_init(void)
367 if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita()))
370 spitz_snd_device = platform_device_alloc("soc-audio", -1);
371 if (!spitz_snd_device)
374 platform_set_drvdata(spitz_snd_device, &spitz_snd_devdata);
375 spitz_snd_devdata.dev = &spitz_snd_device->dev;
376 ret = platform_device_add(spitz_snd_device);
379 platform_device_put(spitz_snd_device);
384 static void __exit spitz_exit(void)
386 platform_device_unregister(spitz_snd_device);
389 module_init(spitz_init);
390 module_exit(spitz_exit);
392 MODULE_AUTHOR("Richard Purdie");
393 MODULE_DESCRIPTION("ALSA SoC Spitz");
394 MODULE_LICENSE("GPL");