2 * SoC audio for HTC Magician
4 * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
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/timer.h>
19 #include <linux/interrupt.h>
20 #include <linux/platform_device.h>
21 #include <linux/delay.h>
22 #include <linux/gpio.h>
23 #include <linux/i2c.h>
25 #include <sound/core.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/soc-dapm.h>
30 #include <sound/uda1380.h>
32 #include <mach/magician.h>
33 #include <asm/mach-types.h>
34 #include "../codecs/uda1380.h"
35 #include "pxa2xx-i2s.h"
38 #define MAGICIAN_MIC 0
39 #define MAGICIAN_MIC_EXT 1
41 static int magician_hp_switch;
42 static int magician_spk_switch = 1;
43 static int magician_in_sel = MAGICIAN_MIC;
45 static void magician_ext_control(struct snd_soc_codec *codec)
47 struct snd_soc_dapm_context *dapm = &codec->dapm;
49 if (magician_spk_switch)
50 snd_soc_dapm_enable_pin(dapm, "Speaker");
52 snd_soc_dapm_disable_pin(dapm, "Speaker");
53 if (magician_hp_switch)
54 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
56 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
58 switch (magician_in_sel) {
60 snd_soc_dapm_disable_pin(dapm, "Headset Mic");
61 snd_soc_dapm_enable_pin(dapm, "Call Mic");
63 case MAGICIAN_MIC_EXT:
64 snd_soc_dapm_disable_pin(dapm, "Call Mic");
65 snd_soc_dapm_enable_pin(dapm, "Headset Mic");
69 snd_soc_dapm_sync(dapm);
72 static int magician_startup(struct snd_pcm_substream *substream)
74 struct snd_soc_pcm_runtime *rtd = substream->private_data;
75 struct snd_soc_codec *codec = rtd->codec;
77 /* check the jack status at stream startup */
78 magician_ext_control(codec);
84 * Magician uses SSP port for playback.
86 static int magician_playback_hw_params(struct snd_pcm_substream *substream,
87 struct snd_pcm_hw_params *params)
89 struct snd_soc_pcm_runtime *rtd = substream->private_data;
90 struct snd_soc_dai *codec_dai = rtd->codec_dai;
91 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
92 unsigned int acps, acds, width, rate;
93 unsigned int div4 = PXA_SSP_CLK_SCDB_4;
96 rate = params_rate(params);
97 width = snd_pcm_format_physical_width(params_format(params));
100 * rate = SSPSCLK / (2 * width(16 or 32))
101 * SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
103 switch (params_rate(params)) {
105 /* off by a factor of 2: bug in the PXA27x audio clock? */
109 /* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
110 acds = PXA_SSP_CLK_AUDIO_DIV_16;
113 /* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
114 acds = PXA_SSP_CLK_AUDIO_DIV_8;
121 /* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
122 acds = PXA_SSP_CLK_AUDIO_DIV_4;
125 /* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
126 acds = PXA_SSP_CLK_AUDIO_DIV_2;
133 /* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
134 acds = PXA_SSP_CLK_AUDIO_DIV_2;
137 /* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
138 acds = PXA_SSP_CLK_AUDIO_DIV_1;
145 /* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
146 acds = PXA_SSP_CLK_AUDIO_DIV_2;
149 /* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
150 acds = PXA_SSP_CLK_AUDIO_DIV_1;
157 /* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
158 acds = PXA_SSP_CLK_AUDIO_DIV_2;
161 /* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
162 acds = PXA_SSP_CLK_AUDIO_DIV_1;
170 /* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
171 acds = PXA_SSP_CLK_AUDIO_DIV_1;
174 /* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
175 acds = PXA_SSP_CLK_AUDIO_DIV_2;
176 div4 = PXA_SSP_CLK_SCDB_1;
182 /* set codec DAI configuration */
183 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
184 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
188 /* set cpu DAI configuration */
189 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
190 SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_CBS_CFS);
194 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
198 /* set audio clock as clock source */
199 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
204 /* set the SSP audio system clock ACDS divider */
205 ret = snd_soc_dai_set_clkdiv(cpu_dai,
206 PXA_SSP_AUDIO_DIV_ACDS, acds);
210 /* set the SSP audio system clock SCDB divider4 */
211 ret = snd_soc_dai_set_clkdiv(cpu_dai,
212 PXA_SSP_AUDIO_DIV_SCDB, div4);
216 /* set SSP audio pll clock */
217 ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, 0, acps);
225 * Magician uses I2S for capture.
227 static int magician_capture_hw_params(struct snd_pcm_substream *substream,
228 struct snd_pcm_hw_params *params)
230 struct snd_soc_pcm_runtime *rtd = substream->private_data;
231 struct snd_soc_dai *codec_dai = rtd->codec_dai;
232 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
235 /* set codec DAI configuration */
236 ret = snd_soc_dai_set_fmt(codec_dai,
237 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
238 SND_SOC_DAIFMT_CBS_CFS);
242 /* set cpu DAI configuration */
243 ret = snd_soc_dai_set_fmt(cpu_dai,
244 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
245 SND_SOC_DAIFMT_CBS_CFS);
249 /* set the I2S system clock as output */
250 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
258 static struct snd_soc_ops magician_capture_ops = {
259 .startup = magician_startup,
260 .hw_params = magician_capture_hw_params,
263 static struct snd_soc_ops magician_playback_ops = {
264 .startup = magician_startup,
265 .hw_params = magician_playback_hw_params,
268 static int magician_get_hp(struct snd_kcontrol *kcontrol,
269 struct snd_ctl_elem_value *ucontrol)
271 ucontrol->value.integer.value[0] = magician_hp_switch;
275 static int magician_set_hp(struct snd_kcontrol *kcontrol,
276 struct snd_ctl_elem_value *ucontrol)
278 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
280 if (magician_hp_switch == ucontrol->value.integer.value[0])
283 magician_hp_switch = ucontrol->value.integer.value[0];
284 magician_ext_control(codec);
288 static int magician_get_spk(struct snd_kcontrol *kcontrol,
289 struct snd_ctl_elem_value *ucontrol)
291 ucontrol->value.integer.value[0] = magician_spk_switch;
295 static int magician_set_spk(struct snd_kcontrol *kcontrol,
296 struct snd_ctl_elem_value *ucontrol)
298 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
300 if (magician_spk_switch == ucontrol->value.integer.value[0])
303 magician_spk_switch = ucontrol->value.integer.value[0];
304 magician_ext_control(codec);
308 static int magician_get_input(struct snd_kcontrol *kcontrol,
309 struct snd_ctl_elem_value *ucontrol)
311 ucontrol->value.integer.value[0] = magician_in_sel;
315 static int magician_set_input(struct snd_kcontrol *kcontrol,
316 struct snd_ctl_elem_value *ucontrol)
318 if (magician_in_sel == ucontrol->value.integer.value[0])
321 magician_in_sel = ucontrol->value.integer.value[0];
323 switch (magician_in_sel) {
325 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
327 case MAGICIAN_MIC_EXT:
328 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
334 static int magician_spk_power(struct snd_soc_dapm_widget *w,
335 struct snd_kcontrol *k, int event)
337 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
341 static int magician_hp_power(struct snd_soc_dapm_widget *w,
342 struct snd_kcontrol *k, int event)
344 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
348 static int magician_mic_bias(struct snd_soc_dapm_widget *w,
349 struct snd_kcontrol *k, int event)
351 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
355 /* magician machine dapm widgets */
356 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
357 SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
358 SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
359 SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
360 SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
363 /* magician machine audio_map */
364 static const struct snd_soc_dapm_route audio_map[] = {
366 /* Headphone connected to VOUTL, VOUTR */
367 {"Headphone Jack", NULL, "VOUTL"},
368 {"Headphone Jack", NULL, "VOUTR"},
370 /* Speaker connected to VOUTL, VOUTR */
371 {"Speaker", NULL, "VOUTL"},
372 {"Speaker", NULL, "VOUTR"},
374 /* Mics are connected to VINM */
375 {"VINM", NULL, "Headset Mic"},
376 {"VINM", NULL, "Call Mic"},
379 static const char *input_select[] = {"Call Mic", "Headset Mic"};
380 static const struct soc_enum magician_in_sel_enum =
381 SOC_ENUM_SINGLE_EXT(2, input_select);
383 static const struct snd_kcontrol_new uda1380_magician_controls[] = {
384 SOC_SINGLE_BOOL_EXT("Headphone Switch",
385 (unsigned long)&magician_hp_switch,
386 magician_get_hp, magician_set_hp),
387 SOC_SINGLE_BOOL_EXT("Speaker Switch",
388 (unsigned long)&magician_spk_switch,
389 magician_get_spk, magician_set_spk),
390 SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
391 magician_get_input, magician_set_input),
395 * Logic for a uda1380 as connected on a HTC Magician
397 static int magician_uda1380_init(struct snd_soc_pcm_runtime *rtd)
399 struct snd_soc_codec *codec = rtd->codec;
400 struct snd_soc_dapm_context *dapm = &codec->dapm;
404 snd_soc_dapm_nc_pin(dapm, "VOUTLHP");
405 snd_soc_dapm_nc_pin(dapm, "VOUTRHP");
407 /* FIXME: is anything connected here? */
408 snd_soc_dapm_nc_pin(dapm, "VINL");
409 snd_soc_dapm_nc_pin(dapm, "VINR");
411 /* Add magician specific controls */
412 err = snd_soc_add_controls(codec, uda1380_magician_controls,
413 ARRAY_SIZE(uda1380_magician_controls));
417 /* Add magician specific widgets */
418 snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets,
419 ARRAY_SIZE(uda1380_dapm_widgets));
421 /* Set up magician specific audio path interconnects */
422 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
424 snd_soc_dapm_sync(dapm);
428 /* magician digital audio interface glue - connects codec <--> CPU */
429 static struct snd_soc_dai_link magician_dai[] = {
432 .stream_name = "UDA1380 Playback",
433 .cpu_dai_name = "pxa-ssp-dai.0",
434 .codec_dai_name = "uda1380-hifi-playback",
435 .platform_name = "pxa-pcm-audio",
436 .codec_name = "uda1380-codec.0-0018",
437 .init = magician_uda1380_init,
438 .ops = &magician_playback_ops,
442 .stream_name = "UDA1380 Capture",
443 .cpu_dai_name = "pxa2xx-i2s",
444 .codec_dai_name = "uda1380-hifi-capture",
445 .platform_name = "pxa-pcm-audio",
446 .codec_name = "uda1380-codec.0-0018",
447 .ops = &magician_capture_ops,
451 /* magician audio machine driver */
452 static struct snd_soc_card snd_soc_card_magician = {
454 .dai_link = magician_dai,
455 .num_links = ARRAY_SIZE(magician_dai),
459 static struct platform_device *magician_snd_device;
462 * FIXME: move into magician board file once merged into the pxa tree
464 static struct uda1380_platform_data uda1380_info = {
465 .gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
466 .gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
467 .dac_clk = UDA1380_DAC_CLK_WSPLL,
470 static struct i2c_board_info i2c_board_info[] = {
472 I2C_BOARD_INFO("uda1380", 0x18),
473 .platform_data = &uda1380_info,
477 static int __init magician_init(void)
480 struct i2c_adapter *adapter;
481 struct i2c_client *client;
483 if (!machine_is_magician())
486 adapter = i2c_get_adapter(0);
489 client = i2c_new_device(adapter, i2c_board_info);
490 i2c_put_adapter(adapter);
494 ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
496 goto err_request_spk;
497 ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
500 ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
502 goto err_request_mic;
503 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
505 goto err_request_in_sel0;
506 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
508 goto err_request_in_sel1;
510 gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
512 magician_snd_device = platform_device_alloc("soc-audio", -1);
513 if (!magician_snd_device) {
518 platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
519 ret = platform_device_add(magician_snd_device);
521 platform_device_put(magician_snd_device);
528 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
530 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
532 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
534 gpio_free(EGPIO_MAGICIAN_EP_POWER);
536 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
541 static void __exit magician_exit(void)
543 platform_device_unregister(magician_snd_device);
545 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
546 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
547 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
549 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
550 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
551 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
552 gpio_free(EGPIO_MAGICIAN_EP_POWER);
553 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
556 module_init(magician_init);
557 module_exit(magician_exit);
559 MODULE_AUTHOR("Philipp Zabel");
560 MODULE_DESCRIPTION("ALSA SoC Magician");
561 MODULE_LICENSE("GPL");