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>
24 #include <sound/core.h>
25 #include <sound/pcm.h>
26 #include <sound/pcm_params.h>
27 #include <sound/soc.h>
28 #include <sound/soc-dapm.h>
30 #include <mach/pxa-regs.h>
31 #include <mach/hardware.h>
32 #include <mach/magician.h>
33 #include <asm/mach-types.h>
34 #include "../codecs/uda1380.h"
35 #include "pxa2xx-pcm.h"
36 #include "pxa2xx-i2s.h"
39 #define MAGICIAN_MIC 0
40 #define MAGICIAN_MIC_EXT 1
42 static int magician_hp_switch;
43 static int magician_spk_switch = 1;
44 static int magician_in_sel = MAGICIAN_MIC;
46 static void magician_ext_control(struct snd_soc_codec *codec)
48 if (magician_spk_switch)
49 snd_soc_dapm_enable_pin(codec, "Speaker");
51 snd_soc_dapm_disable_pin(codec, "Speaker");
52 if (magician_hp_switch)
53 snd_soc_dapm_enable_pin(codec, "Headphone Jack");
55 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
57 switch (magician_in_sel) {
59 snd_soc_dapm_disable_pin(codec, "Headset Mic");
60 snd_soc_dapm_enable_pin(codec, "Call Mic");
62 case MAGICIAN_MIC_EXT:
63 snd_soc_dapm_disable_pin(codec, "Call Mic");
64 snd_soc_dapm_enable_pin(codec, "Headset Mic");
68 snd_soc_dapm_sync(codec);
71 static int magician_startup(struct snd_pcm_substream *substream)
73 struct snd_soc_pcm_runtime *rtd = substream->private_data;
74 struct snd_soc_codec *codec = rtd->socdev->card->codec;
76 /* check the jack status at stream startup */
77 magician_ext_control(codec);
83 * Magician uses SSP port for playback.
85 static int magician_playback_hw_params(struct snd_pcm_substream *substream,
86 struct snd_pcm_hw_params *params)
88 struct snd_soc_pcm_runtime *rtd = substream->private_data;
89 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
90 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
91 unsigned int acps, acds, width, rate;
92 unsigned int div4 = PXA_SSP_CLK_SCDB_4;
95 rate = params_rate(params);
96 width = snd_pcm_format_physical_width(params_format(params));
99 * rate = SSPSCLK / (2 * width(16 or 32))
100 * SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
102 switch (params_rate(params)) {
104 /* off by a factor of 2: bug in the PXA27x audio clock? */
108 /* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
109 acds = PXA_SSP_CLK_AUDIO_DIV_16;
112 /* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
113 acds = PXA_SSP_CLK_AUDIO_DIV_8;
120 /* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
121 acds = PXA_SSP_CLK_AUDIO_DIV_4;
124 /* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
125 acds = PXA_SSP_CLK_AUDIO_DIV_2;
132 /* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
133 acds = PXA_SSP_CLK_AUDIO_DIV_2;
136 /* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
137 acds = PXA_SSP_CLK_AUDIO_DIV_1;
144 /* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
145 acds = PXA_SSP_CLK_AUDIO_DIV_2;
148 /* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
149 acds = PXA_SSP_CLK_AUDIO_DIV_1;
156 /* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
157 acds = PXA_SSP_CLK_AUDIO_DIV_2;
160 /* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
161 acds = PXA_SSP_CLK_AUDIO_DIV_1;
168 /* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
169 acds = PXA_SSP_CLK_AUDIO_DIV_1;
172 /* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
173 acds = PXA_SSP_CLK_AUDIO_DIV_2;
174 div4 = PXA_SSP_CLK_SCDB_1;
180 /* set codec DAI configuration */
181 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
182 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
186 /* set cpu DAI configuration */
187 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
188 SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBS_CFS);
192 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 1);
196 /* set audio clock as clock source */
197 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
202 /* set the SSP audio system clock ACDS divider */
203 ret = snd_soc_dai_set_clkdiv(cpu_dai,
204 PXA_SSP_AUDIO_DIV_ACDS, acds);
208 /* set the SSP audio system clock SCDB divider4 */
209 ret = snd_soc_dai_set_clkdiv(cpu_dai,
210 PXA_SSP_AUDIO_DIV_SCDB, div4);
214 /* set SSP audio pll clock */
215 ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, acps);
223 * Magician uses I2S for capture.
225 static int magician_capture_hw_params(struct snd_pcm_substream *substream,
226 struct snd_pcm_hw_params *params)
228 struct snd_soc_pcm_runtime *rtd = substream->private_data;
229 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
230 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
233 /* set codec DAI configuration */
234 ret = snd_soc_dai_set_fmt(codec_dai,
235 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
236 SND_SOC_DAIFMT_CBS_CFS);
240 /* set cpu DAI configuration */
241 ret = snd_soc_dai_set_fmt(cpu_dai,
242 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
243 SND_SOC_DAIFMT_CBS_CFS);
247 /* set the I2S system clock as output */
248 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
256 static struct snd_soc_ops magician_capture_ops = {
257 .startup = magician_startup,
258 .hw_params = magician_capture_hw_params,
261 static struct snd_soc_ops magician_playback_ops = {
262 .startup = magician_startup,
263 .hw_params = magician_playback_hw_params,
266 static int magician_get_hp(struct snd_kcontrol *kcontrol,
267 struct snd_ctl_elem_value *ucontrol)
269 ucontrol->value.integer.value[0] = magician_hp_switch;
273 static int magician_set_hp(struct snd_kcontrol *kcontrol,
274 struct snd_ctl_elem_value *ucontrol)
276 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
278 if (magician_hp_switch == ucontrol->value.integer.value[0])
281 magician_hp_switch = ucontrol->value.integer.value[0];
282 magician_ext_control(codec);
286 static int magician_get_spk(struct snd_kcontrol *kcontrol,
287 struct snd_ctl_elem_value *ucontrol)
289 ucontrol->value.integer.value[0] = magician_spk_switch;
293 static int magician_set_spk(struct snd_kcontrol *kcontrol,
294 struct snd_ctl_elem_value *ucontrol)
296 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
298 if (magician_spk_switch == ucontrol->value.integer.value[0])
301 magician_spk_switch = ucontrol->value.integer.value[0];
302 magician_ext_control(codec);
306 static int magician_get_input(struct snd_kcontrol *kcontrol,
307 struct snd_ctl_elem_value *ucontrol)
309 ucontrol->value.integer.value[0] = magician_in_sel;
313 static int magician_set_input(struct snd_kcontrol *kcontrol,
314 struct snd_ctl_elem_value *ucontrol)
316 if (magician_in_sel == ucontrol->value.integer.value[0])
319 magician_in_sel = ucontrol->value.integer.value[0];
321 switch (magician_in_sel) {
323 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
325 case MAGICIAN_MIC_EXT:
326 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
332 static int magician_spk_power(struct snd_soc_dapm_widget *w,
333 struct snd_kcontrol *k, int event)
335 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
339 static int magician_hp_power(struct snd_soc_dapm_widget *w,
340 struct snd_kcontrol *k, int event)
342 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
346 static int magician_mic_bias(struct snd_soc_dapm_widget *w,
347 struct snd_kcontrol *k, int event)
349 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
353 /* magician machine dapm widgets */
354 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
355 SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
356 SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
357 SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
358 SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
361 /* magician machine audio_map */
362 static const struct snd_soc_dapm_route audio_map[] = {
364 /* Headphone connected to VOUTL, VOUTR */
365 {"Headphone Jack", NULL, "VOUTL"},
366 {"Headphone Jack", NULL, "VOUTR"},
368 /* Speaker connected to VOUTL, VOUTR */
369 {"Speaker", NULL, "VOUTL"},
370 {"Speaker", NULL, "VOUTR"},
372 /* Mics are connected to VINM */
373 {"VINM", NULL, "Headset Mic"},
374 {"VINM", NULL, "Call Mic"},
377 static const char *input_select[] = {"Call Mic", "Headset Mic"};
378 static const struct soc_enum magician_in_sel_enum =
379 SOC_ENUM_SINGLE_EXT(2, input_select);
381 static const struct snd_kcontrol_new uda1380_magician_controls[] = {
382 SOC_SINGLE_BOOL_EXT("Headphone Switch",
383 (unsigned long)&magician_hp_switch,
384 magician_get_hp, magician_set_hp),
385 SOC_SINGLE_BOOL_EXT("Speaker Switch",
386 (unsigned long)&magician_spk_switch,
387 magician_get_spk, magician_set_spk),
388 SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
389 magician_get_input, magician_set_input),
393 * Logic for a uda1380 as connected on a HTC Magician
395 static int magician_uda1380_init(struct snd_soc_codec *codec)
400 snd_soc_dapm_nc_pin(codec, "VOUTLHP");
401 snd_soc_dapm_nc_pin(codec, "VOUTRHP");
403 /* FIXME: is anything connected here? */
404 snd_soc_dapm_nc_pin(codec, "VINL");
405 snd_soc_dapm_nc_pin(codec, "VINR");
407 /* Add magician specific controls */
408 err = snd_soc_add_controls(codec, uda1380_magician_controls,
409 ARRAY_SIZE(uda1380_magician_controls));
413 /* Add magician specific widgets */
414 snd_soc_dapm_new_controls(codec, uda1380_dapm_widgets,
415 ARRAY_SIZE(uda1380_dapm_widgets));
417 /* Set up magician specific audio path interconnects */
418 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
420 snd_soc_dapm_sync(codec);
424 /* magician digital audio interface glue - connects codec <--> CPU */
425 static struct snd_soc_dai_link magician_dai[] = {
428 .stream_name = "UDA1380 Playback",
429 .cpu_dai = &pxa_ssp_dai[PXA_DAI_SSP1],
430 .codec_dai = &uda1380_dai[UDA1380_DAI_PLAYBACK],
431 .init = magician_uda1380_init,
432 .ops = &magician_playback_ops,
436 .stream_name = "UDA1380 Capture",
437 .cpu_dai = &pxa_i2s_dai,
438 .codec_dai = &uda1380_dai[UDA1380_DAI_CAPTURE],
439 .ops = &magician_capture_ops,
443 /* magician audio machine driver */
444 static struct snd_soc_card snd_soc_card_magician = {
446 .dai_link = magician_dai,
447 .num_links = ARRAY_SIZE(magician_dai),
448 .platform = &pxa2xx_soc_platform,
451 /* magician audio private data */
452 static struct uda1380_setup_data magician_uda1380_setup = {
454 .dac_clk = UDA1380_DAC_CLK_WSPLL,
457 /* magician audio subsystem */
458 static struct snd_soc_device magician_snd_devdata = {
459 .card = &snd_soc_card_magician,
460 .codec_dev = &soc_codec_dev_uda1380,
461 .codec_data = &magician_uda1380_setup,
464 static struct platform_device *magician_snd_device;
466 static int __init magician_init(void)
470 if (!machine_is_magician())
473 ret = gpio_request(EGPIO_MAGICIAN_CODEC_POWER, "CODEC_POWER");
475 goto err_request_power;
476 ret = gpio_request(EGPIO_MAGICIAN_CODEC_RESET, "CODEC_RESET");
478 goto err_request_reset;
479 ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
481 goto err_request_spk;
482 ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
485 ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
487 goto err_request_mic;
488 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
490 goto err_request_in_sel0;
491 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
493 goto err_request_in_sel1;
495 gpio_set_value(EGPIO_MAGICIAN_CODEC_POWER, 1);
496 gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
498 /* we may need to have the clock running here - pH5 */
499 gpio_set_value(EGPIO_MAGICIAN_CODEC_RESET, 1);
501 gpio_set_value(EGPIO_MAGICIAN_CODEC_RESET, 0);
503 magician_snd_device = platform_device_alloc("soc-audio", -1);
504 if (!magician_snd_device) {
509 platform_set_drvdata(magician_snd_device, &magician_snd_devdata);
510 magician_snd_devdata.dev = &magician_snd_device->dev;
511 ret = platform_device_add(magician_snd_device);
513 platform_device_put(magician_snd_device);
520 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
522 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
524 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
526 gpio_free(EGPIO_MAGICIAN_EP_POWER);
528 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
530 gpio_free(EGPIO_MAGICIAN_CODEC_RESET);
532 gpio_free(EGPIO_MAGICIAN_CODEC_POWER);
537 static void __exit magician_exit(void)
539 platform_device_unregister(magician_snd_device);
541 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
542 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
543 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
544 gpio_set_value(EGPIO_MAGICIAN_CODEC_POWER, 0);
546 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
547 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
548 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
549 gpio_free(EGPIO_MAGICIAN_EP_POWER);
550 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
551 gpio_free(EGPIO_MAGICIAN_CODEC_RESET);
552 gpio_free(EGPIO_MAGICIAN_CODEC_POWER);
555 module_init(magician_init);
556 module_exit(magician_exit);
558 MODULE_AUTHOR("Philipp Zabel");
559 MODULE_DESCRIPTION("ALSA SoC Magician");
560 MODULE_LICENSE("GPL");