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 <lrg@slimlogic.co.uk>
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.
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 <linux/gpio.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/soc.h>
26 #include <sound/soc-dapm.h>
28 #include <asm/mach-types.h>
29 #include <mach/spitz.h>
30 #include "../codecs/wm8750.h"
31 #include "pxa2xx-i2s.h"
36 #define SPITZ_HEADSET 3
37 #define SPITZ_HP_OFF 4
38 #define SPITZ_SPK_ON 0
39 #define SPITZ_SPK_OFF 1
41 /* audio clock in Hz - rounded from 12.235MHz */
42 #define SPITZ_AUDIO_CLOCK 12288000
44 static int spitz_jack_func
;
45 static int spitz_spk_func
;
47 static void spitz_ext_control(struct snd_soc_codec
*codec
)
49 if (spitz_spk_func
== SPITZ_SPK_ON
)
50 snd_soc_dapm_enable_pin(codec
, "Ext Spk");
52 snd_soc_dapm_disable_pin(codec
, "Ext Spk");
54 /* set up jack connection */
55 switch (spitz_jack_func
) {
57 /* enable and unmute hp jack, disable mic bias */
58 snd_soc_dapm_disable_pin(codec
, "Headset Jack");
59 snd_soc_dapm_disable_pin(codec
, "Mic Jack");
60 snd_soc_dapm_disable_pin(codec
, "Line Jack");
61 snd_soc_dapm_enable_pin(codec
, "Headphone Jack");
62 gpio_set_value(SPITZ_GPIO_MUTE_L
, 1);
63 gpio_set_value(SPITZ_GPIO_MUTE_R
, 1);
66 /* enable mic jack and bias, mute hp */
67 snd_soc_dapm_disable_pin(codec
, "Headphone Jack");
68 snd_soc_dapm_disable_pin(codec
, "Headset Jack");
69 snd_soc_dapm_disable_pin(codec
, "Line Jack");
70 snd_soc_dapm_enable_pin(codec
, "Mic Jack");
71 gpio_set_value(SPITZ_GPIO_MUTE_L
, 0);
72 gpio_set_value(SPITZ_GPIO_MUTE_R
, 0);
75 /* enable line jack, disable mic bias and mute hp */
76 snd_soc_dapm_disable_pin(codec
, "Headphone Jack");
77 snd_soc_dapm_disable_pin(codec
, "Headset Jack");
78 snd_soc_dapm_disable_pin(codec
, "Mic Jack");
79 snd_soc_dapm_enable_pin(codec
, "Line Jack");
80 gpio_set_value(SPITZ_GPIO_MUTE_L
, 0);
81 gpio_set_value(SPITZ_GPIO_MUTE_R
, 0);
84 /* enable and unmute headset jack enable mic bias, mute L hp */
85 snd_soc_dapm_disable_pin(codec
, "Headphone Jack");
86 snd_soc_dapm_enable_pin(codec
, "Mic Jack");
87 snd_soc_dapm_disable_pin(codec
, "Line Jack");
88 snd_soc_dapm_enable_pin(codec
, "Headset Jack");
89 gpio_set_value(SPITZ_GPIO_MUTE_L
, 0);
90 gpio_set_value(SPITZ_GPIO_MUTE_R
, 1);
94 /* jack removed, everything off */
95 snd_soc_dapm_disable_pin(codec
, "Headphone Jack");
96 snd_soc_dapm_disable_pin(codec
, "Headset Jack");
97 snd_soc_dapm_disable_pin(codec
, "Mic Jack");
98 snd_soc_dapm_disable_pin(codec
, "Line Jack");
99 gpio_set_value(SPITZ_GPIO_MUTE_L
, 0);
100 gpio_set_value(SPITZ_GPIO_MUTE_R
, 0);
103 snd_soc_dapm_sync(codec
);
106 static int spitz_startup(struct snd_pcm_substream
*substream
)
108 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
109 struct snd_soc_codec
*codec
= rtd
->codec
;
111 /* check the jack status at stream startup */
112 spitz_ext_control(codec
);
116 static int spitz_hw_params(struct snd_pcm_substream
*substream
,
117 struct snd_pcm_hw_params
*params
)
119 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
120 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
121 struct snd_soc_dai
*cpu_dai
= rtd
->cpu_dai
;
122 unsigned int clk
= 0;
125 switch (params_rate(params
)) {
139 /* set codec DAI configuration */
140 ret
= snd_soc_dai_set_fmt(codec_dai
, SND_SOC_DAIFMT_I2S
|
141 SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS
);
145 /* set cpu DAI configuration */
146 ret
= snd_soc_dai_set_fmt(cpu_dai
, SND_SOC_DAIFMT_I2S
|
147 SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS
);
151 /* set the codec system clock for DAC and ADC */
152 ret
= snd_soc_dai_set_sysclk(codec_dai
, WM8750_SYSCLK
, clk
,
157 /* set the I2S system clock as input (unused) */
158 ret
= snd_soc_dai_set_sysclk(cpu_dai
, PXA2XX_I2S_SYSCLK
, 0,
166 static struct snd_soc_ops spitz_ops
= {
167 .startup
= spitz_startup
,
168 .hw_params
= spitz_hw_params
,
171 static int spitz_get_jack(struct snd_kcontrol
*kcontrol
,
172 struct snd_ctl_elem_value
*ucontrol
)
174 ucontrol
->value
.integer
.value
[0] = spitz_jack_func
;
178 static int spitz_set_jack(struct snd_kcontrol
*kcontrol
,
179 struct snd_ctl_elem_value
*ucontrol
)
181 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
183 if (spitz_jack_func
== ucontrol
->value
.integer
.value
[0])
186 spitz_jack_func
= ucontrol
->value
.integer
.value
[0];
187 spitz_ext_control(codec
);
191 static int spitz_get_spk(struct snd_kcontrol
*kcontrol
,
192 struct snd_ctl_elem_value
*ucontrol
)
194 ucontrol
->value
.integer
.value
[0] = spitz_spk_func
;
198 static int spitz_set_spk(struct snd_kcontrol
*kcontrol
,
199 struct snd_ctl_elem_value
*ucontrol
)
201 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
203 if (spitz_spk_func
== ucontrol
->value
.integer
.value
[0])
206 spitz_spk_func
= ucontrol
->value
.integer
.value
[0];
207 spitz_ext_control(codec
);
211 static int spitz_mic_bias(struct snd_soc_dapm_widget
*w
,
212 struct snd_kcontrol
*k
, int event
)
214 if (machine_is_borzoi() || machine_is_spitz())
215 gpio_set_value(SPITZ_GPIO_MIC_BIAS
,
216 SND_SOC_DAPM_EVENT_ON(event
));
218 if (machine_is_akita())
219 gpio_set_value(AKITA_GPIO_MIC_BIAS
,
220 SND_SOC_DAPM_EVENT_ON(event
));
225 /* spitz machine dapm widgets */
226 static const struct snd_soc_dapm_widget wm8750_dapm_widgets
[] = {
227 SND_SOC_DAPM_HP("Headphone Jack", NULL
),
228 SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias
),
229 SND_SOC_DAPM_SPK("Ext Spk", NULL
),
230 SND_SOC_DAPM_LINE("Line Jack", NULL
),
232 /* headset is a mic and mono headphone */
233 SND_SOC_DAPM_HP("Headset Jack", NULL
),
236 /* Spitz machine audio_map */
237 static const struct snd_soc_dapm_route audio_map
[] = {
239 /* headphone connected to LOUT1, ROUT1 */
240 {"Headphone Jack", NULL
, "LOUT1"},
241 {"Headphone Jack", NULL
, "ROUT1"},
243 /* headset connected to ROUT1 and LINPUT1 with bias (def below) */
244 {"Headset Jack", NULL
, "ROUT1"},
246 /* ext speaker connected to LOUT2, ROUT2 */
247 {"Ext Spk", NULL
, "ROUT2"},
248 {"Ext Spk", NULL
, "LOUT2"},
250 /* mic is connected to input 1 - with bias */
251 {"LINPUT1", NULL
, "Mic Bias"},
252 {"Mic Bias", NULL
, "Mic Jack"},
254 /* line is connected to input 1 - no bias */
255 {"LINPUT1", NULL
, "Line Jack"},
258 static const char *jack_function
[] = {"Headphone", "Mic", "Line", "Headset",
260 static const char *spk_function
[] = {"On", "Off"};
261 static const struct soc_enum spitz_enum
[] = {
262 SOC_ENUM_SINGLE_EXT(5, jack_function
),
263 SOC_ENUM_SINGLE_EXT(2, spk_function
),
266 static const struct snd_kcontrol_new wm8750_spitz_controls
[] = {
267 SOC_ENUM_EXT("Jack Function", spitz_enum
[0], spitz_get_jack
,
269 SOC_ENUM_EXT("Speaker Function", spitz_enum
[1], spitz_get_spk
,
274 * Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
276 static int spitz_wm8750_init(struct snd_soc_pcm_runtime
*rtd
)
278 struct snd_soc_codec
*codec
= rtd
->codec
;
282 snd_soc_dapm_nc_pin(codec
, "RINPUT1");
283 snd_soc_dapm_nc_pin(codec
, "LINPUT2");
284 snd_soc_dapm_nc_pin(codec
, "RINPUT2");
285 snd_soc_dapm_nc_pin(codec
, "LINPUT3");
286 snd_soc_dapm_nc_pin(codec
, "RINPUT3");
287 snd_soc_dapm_nc_pin(codec
, "OUT3");
288 snd_soc_dapm_nc_pin(codec
, "MONO1");
290 /* Add spitz specific controls */
291 err
= snd_soc_add_controls(codec
, wm8750_spitz_controls
,
292 ARRAY_SIZE(wm8750_spitz_controls
));
296 /* Add spitz specific widgets */
297 snd_soc_dapm_new_controls(codec
, wm8750_dapm_widgets
,
298 ARRAY_SIZE(wm8750_dapm_widgets
));
300 /* Set up spitz specific audio paths */
301 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
303 snd_soc_dapm_sync(codec
);
307 /* spitz digital audio interface glue - connects codec <--> CPU */
308 static struct snd_soc_dai_link spitz_dai
= {
310 .stream_name
= "WM8750",
311 .cpu_dai_name
= "pxa-is2",
312 .codec_dai_name
= "wm8750-hifi",
313 .platform_name
= "pxa-pcm-audio",
314 .codec_name
= "wm8750-codec.0-001a",
315 .init
= spitz_wm8750_init
,
319 /* spitz audio machine driver */
320 static struct snd_soc_card snd_soc_spitz
= {
322 .dai_link
= &spitz_dai
,
326 static struct platform_device
*spitz_snd_device
;
328 static int __init
spitz_init(void)
332 if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita()))
335 spitz_snd_device
= platform_device_alloc("soc-audio", -1);
336 if (!spitz_snd_device
)
339 platform_set_drvdata(spitz_snd_device
, &snd_soc_spitz
);
340 ret
= platform_device_add(spitz_snd_device
);
343 platform_device_put(spitz_snd_device
);
348 static void __exit
spitz_exit(void)
350 platform_device_unregister(spitz_snd_device
);
353 module_init(spitz_init
);
354 module_exit(spitz_exit
);
356 MODULE_AUTHOR("Richard Purdie");
357 MODULE_DESCRIPTION("ALSA SoC Spitz");
358 MODULE_LICENSE("GPL");