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Side by Side Diff: sound/soc/codecs/wm8940.c

Issue 6577007: CHROMIUM: ASoC: Import entire upstream ASoC tree (Closed)
Patch Set: Created 9 years, 10 months ago
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1 /* 1 /*
2 * wm8940.c -- WM8940 ALSA Soc Audio driver 2 * wm8940.c -- WM8940 ALSA Soc Audio driver
3 * 3 *
4 * Author: Jonathan Cameron <jic23@cam.ac.uk> 4 * Author: Jonathan Cameron <jic23@cam.ac.uk>
5 * 5 *
6 * Based on wm8510.c 6 * Based on wm8510.c
7 * Copyright 2006 Wolfson Microelectronics PLC. 7 * Copyright 2006 Wolfson Microelectronics PLC.
8 * Author: Liam Girdwood <lrg@slimlogic.co.uk> 8 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
9 * 9 *
10 * This program is free software; you can redistribute it and/or modify 10 * This program is free software; you can redistribute it and/or modify
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28 #include <linux/delay.h> 28 #include <linux/delay.h>
29 #include <linux/pm.h> 29 #include <linux/pm.h>
30 #include <linux/i2c.h> 30 #include <linux/i2c.h>
31 #include <linux/platform_device.h> 31 #include <linux/platform_device.h>
32 #include <linux/spi/spi.h> 32 #include <linux/spi/spi.h>
33 #include <linux/slab.h> 33 #include <linux/slab.h>
34 #include <sound/core.h> 34 #include <sound/core.h>
35 #include <sound/pcm.h> 35 #include <sound/pcm.h>
36 #include <sound/pcm_params.h> 36 #include <sound/pcm_params.h>
37 #include <sound/soc.h> 37 #include <sound/soc.h>
38 #include <sound/soc-dapm.h>
39 #include <sound/initval.h> 38 #include <sound/initval.h>
40 #include <sound/tlv.h> 39 #include <sound/tlv.h>
41 40
42 #include "wm8940.h" 41 #include "wm8940.h"
43 42
44 struct wm8940_priv { 43 struct wm8940_priv {
45 unsigned int sysclk; 44 unsigned int sysclk;
46 u16 reg_cache[WM8940_CACHEREGNUM];
47 enum snd_soc_control_type control_type; 45 enum snd_soc_control_type control_type;
48 void *control_data; 46 void *control_data;
49 }; 47 };
50 48
51 static u16 wm8940_reg_defaults[] = { 49 static u16 wm8940_reg_defaults[] = {
52 0x8940, /* Soft Reset */ 50 0x8940, /* Soft Reset */
53 0x0000, /* Power 1 */ 51 0x0000, /* Power 1 */
54 0x0000, /* Power 2 */ 52 0x0000, /* Power 2 */
55 0x0000, /* Power 3 */ 53 0x0000, /* Power 3 */
56 0x0010, /* Interface Control */ 54 0x0010, /* Interface Control */
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284 /* Boost Mixer */ 282 /* Boost Mixer */
285 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"}, 283 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
286 {"Boost Mixer", "Mic Volume", "MICP"}, 284 {"Boost Mixer", "Mic Volume", "MICP"},
287 {"Boost Mixer", "Aux Volume", "Aux Input"}, 285 {"Boost Mixer", "Aux Volume", "Aux Input"},
288 286
289 {"ADC", NULL, "Boost Mixer"}, 287 {"ADC", NULL, "Boost Mixer"},
290 }; 288 };
291 289
292 static int wm8940_add_widgets(struct snd_soc_codec *codec) 290 static int wm8940_add_widgets(struct snd_soc_codec *codec)
293 { 291 {
292 struct snd_soc_dapm_context *dapm = &codec->dapm;
294 int ret; 293 int ret;
295 294
296 » ret = snd_soc_dapm_new_controls(codec, wm8940_dapm_widgets, 295 » ret = snd_soc_dapm_new_controls(dapm, wm8940_dapm_widgets,
297 ARRAY_SIZE(wm8940_dapm_widgets)); 296 ARRAY_SIZE(wm8940_dapm_widgets));
298 if (ret) 297 if (ret)
299 goto error_ret; 298 goto error_ret;
300 » ret = snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); 299 » ret = snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
301 if (ret) 300 if (ret)
302 goto error_ret; 301 goto error_ret;
303 302
304 error_ret: 303 error_ret:
305 return ret; 304 return ret;
306 } 305 }
307 306
308 #define wm8940_reset(c) snd_soc_write(c, WM8940_SOFTRESET, 0); 307 #define wm8940_reset(c) snd_soc_write(c, WM8940_SOFTRESET, 0);
309 308
310 static int wm8940_set_dai_fmt(struct snd_soc_dai *codec_dai, 309 static int wm8940_set_dai_fmt(struct snd_soc_dai *codec_dai,
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728 727
729 ret = snd_soc_add_controls(codec, wm8940_snd_controls, 728 ret = snd_soc_add_controls(codec, wm8940_snd_controls,
730 ARRAY_SIZE(wm8940_snd_controls)); 729 ARRAY_SIZE(wm8940_snd_controls));
731 if (ret) 730 if (ret)
732 return ret; 731 return ret;
733 ret = wm8940_add_widgets(codec); 732 ret = wm8940_add_widgets(codec);
734 if (ret) 733 if (ret)
735 return ret; 734 return ret;
736 735
737 return ret; 736 return ret;
738 ;
739 } 737 }
740 738
741 static int wm8940_remove(struct snd_soc_codec *codec) 739 static int wm8940_remove(struct snd_soc_codec *codec)
742 { 740 {
743 wm8940_set_bias_level(codec, SND_SOC_BIAS_OFF); 741 wm8940_set_bias_level(codec, SND_SOC_BIAS_OFF);
744 return 0; 742 return 0;
745 } 743 }
746 744
747 static struct snd_soc_codec_driver soc_codec_dev_wm8940 = { 745 static struct snd_soc_codec_driver soc_codec_dev_wm8940 = {
748 .probe = wm8940_probe, 746 .probe = wm8940_probe,
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819 { 817 {
820 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 818 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
821 i2c_del_driver(&wm8940_i2c_driver); 819 i2c_del_driver(&wm8940_i2c_driver);
822 #endif 820 #endif
823 } 821 }
824 module_exit(wm8940_exit); 822 module_exit(wm8940_exit);
825 823
826 MODULE_DESCRIPTION("ASoC WM8940 driver"); 824 MODULE_DESCRIPTION("ASoC WM8940 driver");
827 MODULE_AUTHOR("Jonathan Cameron"); 825 MODULE_AUTHOR("Jonathan Cameron");
828 MODULE_LICENSE("GPL"); 826 MODULE_LICENSE("GPL");
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