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/magician.h>
31 #include <asm/mach-types.h>
32 #include "../codecs/uda1380.h"
33 #include "pxa2xx-pcm.h"
34 #include "pxa2xx-i2s.h"
37 #define MAGICIAN_MIC 0
38 #define MAGICIAN_MIC_EXT 1
40 static int magician_hp_switch;
41 static int magician_spk_switch = 1;
42 static int magician_in_sel = MAGICIAN_MIC;
44 static void magician_ext_control(struct snd_soc_codec *codec)
46 if (magician_spk_switch)
47 snd_soc_dapm_enable_pin(codec, "Speaker");
49 snd_soc_dapm_disable_pin(codec, "Speaker");
50 if (magician_hp_switch)
51 snd_soc_dapm_enable_pin(codec, "Headphone Jack");
53 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
55 switch (magician_in_sel) {
57 snd_soc_dapm_disable_pin(codec, "Headset Mic");
58 snd_soc_dapm_enable_pin(codec, "Call Mic");
60 case MAGICIAN_MIC_EXT:
61 snd_soc_dapm_disable_pin(codec, "Call Mic");
62 snd_soc_dapm_enable_pin(codec, "Headset Mic");
66 snd_soc_dapm_sync(codec);
69 static int magician_startup(struct snd_pcm_substream *substream)
71 struct snd_soc_pcm_runtime *rtd = substream->private_data;
72 struct snd_soc_codec *codec = rtd->socdev->card->codec;
74 /* check the jack status at stream startup */
75 magician_ext_control(codec);
81 * Magician uses SSP port for playback.
83 static int magician_playback_hw_params(struct snd_pcm_substream *substream,
84 struct snd_pcm_hw_params *params)
86 struct snd_soc_pcm_runtime *rtd = substream->private_data;
87 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
88 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
89 unsigned int acps, acds, width, rate;
90 unsigned int div4 = PXA_SSP_CLK_SCDB_4;
93 rate = params_rate(params);
94 width = snd_pcm_format_physical_width(params_format(params));
97 * rate = SSPSCLK / (2 * width(16 or 32))
98 * SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
100 switch (params_rate(params)) {
102 /* off by a factor of 2: bug in the PXA27x audio clock? */
106 /* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
107 acds = PXA_SSP_CLK_AUDIO_DIV_16;
110 /* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
111 acds = PXA_SSP_CLK_AUDIO_DIV_8;
118 /* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
119 acds = PXA_SSP_CLK_AUDIO_DIV_4;
122 /* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
123 acds = PXA_SSP_CLK_AUDIO_DIV_2;
130 /* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
131 acds = PXA_SSP_CLK_AUDIO_DIV_2;
134 /* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
135 acds = PXA_SSP_CLK_AUDIO_DIV_1;
142 /* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
143 acds = PXA_SSP_CLK_AUDIO_DIV_2;
146 /* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
147 acds = PXA_SSP_CLK_AUDIO_DIV_1;
154 /* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
155 acds = PXA_SSP_CLK_AUDIO_DIV_2;
158 /* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
159 acds = PXA_SSP_CLK_AUDIO_DIV_1;
166 /* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
167 acds = PXA_SSP_CLK_AUDIO_DIV_1;
170 /* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
171 acds = PXA_SSP_CLK_AUDIO_DIV_2;
172 div4 = PXA_SSP_CLK_SCDB_1;
178 /* set codec DAI configuration */
179 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
180 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
184 /* set cpu DAI configuration */
185 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
186 SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBS_CFS);
190 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 1);
194 /* set audio clock as clock source */
195 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
200 /* set the SSP audio system clock ACDS divider */
201 ret = snd_soc_dai_set_clkdiv(cpu_dai,
202 PXA_SSP_AUDIO_DIV_ACDS, acds);
206 /* set the SSP audio system clock SCDB divider4 */
207 ret = snd_soc_dai_set_clkdiv(cpu_dai,
208 PXA_SSP_AUDIO_DIV_SCDB, div4);
212 /* set SSP audio pll clock */
213 ret = snd_soc_dai_set_pll(cpu_dai, 0, 0, acps);
221 * Magician uses I2S for capture.
223 static int magician_capture_hw_params(struct snd_pcm_substream *substream,
224 struct snd_pcm_hw_params *params)
226 struct snd_soc_pcm_runtime *rtd = substream->private_data;
227 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
228 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
231 /* set codec DAI configuration */
232 ret = snd_soc_dai_set_fmt(codec_dai,
233 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
234 SND_SOC_DAIFMT_CBS_CFS);
238 /* set cpu DAI configuration */
239 ret = snd_soc_dai_set_fmt(cpu_dai,
240 SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
241 SND_SOC_DAIFMT_CBS_CFS);
245 /* set the I2S system clock as output */
246 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
254 static struct snd_soc_ops magician_capture_ops = {
255 .startup = magician_startup,
256 .hw_params = magician_capture_hw_params,
259 static struct snd_soc_ops magician_playback_ops = {
260 .startup = magician_startup,
261 .hw_params = magician_playback_hw_params,
264 static int magician_get_hp(struct snd_kcontrol *kcontrol,
265 struct snd_ctl_elem_value *ucontrol)
267 ucontrol->value.integer.value[0] = magician_hp_switch;
271 static int magician_set_hp(struct snd_kcontrol *kcontrol,
272 struct snd_ctl_elem_value *ucontrol)
274 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
276 if (magician_hp_switch == ucontrol->value.integer.value[0])
279 magician_hp_switch = ucontrol->value.integer.value[0];
280 magician_ext_control(codec);
284 static int magician_get_spk(struct snd_kcontrol *kcontrol,
285 struct snd_ctl_elem_value *ucontrol)
287 ucontrol->value.integer.value[0] = magician_spk_switch;
291 static int magician_set_spk(struct snd_kcontrol *kcontrol,
292 struct snd_ctl_elem_value *ucontrol)
294 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
296 if (magician_spk_switch == ucontrol->value.integer.value[0])
299 magician_spk_switch = ucontrol->value.integer.value[0];
300 magician_ext_control(codec);
304 static int magician_get_input(struct snd_kcontrol *kcontrol,
305 struct snd_ctl_elem_value *ucontrol)
307 ucontrol->value.integer.value[0] = magician_in_sel;
311 static int magician_set_input(struct snd_kcontrol *kcontrol,
312 struct snd_ctl_elem_value *ucontrol)
314 if (magician_in_sel == ucontrol->value.integer.value[0])
317 magician_in_sel = ucontrol->value.integer.value[0];
319 switch (magician_in_sel) {
321 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
323 case MAGICIAN_MIC_EXT:
324 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
330 static int magician_spk_power(struct snd_soc_dapm_widget *w,
331 struct snd_kcontrol *k, int event)
333 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
337 static int magician_hp_power(struct snd_soc_dapm_widget *w,
338 struct snd_kcontrol *k, int event)
340 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
344 static int magician_mic_bias(struct snd_soc_dapm_widget *w,
345 struct snd_kcontrol *k, int event)
347 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
351 /* magician machine dapm widgets */
352 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
353 SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
354 SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
355 SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
356 SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
359 /* magician machine audio_map */
360 static const struct snd_soc_dapm_route audio_map[] = {
362 /* Headphone connected to VOUTL, VOUTR */
363 {"Headphone Jack", NULL, "VOUTL"},
364 {"Headphone Jack", NULL, "VOUTR"},
366 /* Speaker connected to VOUTL, VOUTR */
367 {"Speaker", NULL, "VOUTL"},
368 {"Speaker", NULL, "VOUTR"},
370 /* Mics are connected to VINM */
371 {"VINM", NULL, "Headset Mic"},
372 {"VINM", NULL, "Call Mic"},
375 static const char *input_select[] = {"Call Mic", "Headset Mic"};
376 static const struct soc_enum magician_in_sel_enum =
377 SOC_ENUM_SINGLE_EXT(2, input_select);
379 static const struct snd_kcontrol_new uda1380_magician_controls[] = {
380 SOC_SINGLE_BOOL_EXT("Headphone Switch",
381 (unsigned long)&magician_hp_switch,
382 magician_get_hp, magician_set_hp),
383 SOC_SINGLE_BOOL_EXT("Speaker Switch",
384 (unsigned long)&magician_spk_switch,
385 magician_get_spk, magician_set_spk),
386 SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
387 magician_get_input, magician_set_input),
391 * Logic for a uda1380 as connected on a HTC Magician
393 static int magician_uda1380_init(struct snd_soc_codec *codec)
398 snd_soc_dapm_nc_pin(codec, "VOUTLHP");
399 snd_soc_dapm_nc_pin(codec, "VOUTRHP");
401 /* FIXME: is anything connected here? */
402 snd_soc_dapm_nc_pin(codec, "VINL");
403 snd_soc_dapm_nc_pin(codec, "VINR");
405 /* Add magician specific controls */
406 err = snd_soc_add_controls(codec, uda1380_magician_controls,
407 ARRAY_SIZE(uda1380_magician_controls));
411 /* Add magician specific widgets */
412 snd_soc_dapm_new_controls(codec, uda1380_dapm_widgets,
413 ARRAY_SIZE(uda1380_dapm_widgets));
415 /* Set up magician specific audio path interconnects */
416 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
418 snd_soc_dapm_sync(codec);
422 /* magician digital audio interface glue - connects codec <--> CPU */
423 static struct snd_soc_dai_link magician_dai[] = {
426 .stream_name = "UDA1380 Playback",
427 .cpu_dai = &pxa_ssp_dai[PXA_DAI_SSP1],
428 .codec_dai = &uda1380_dai[UDA1380_DAI_PLAYBACK],
429 .init = magician_uda1380_init,
430 .ops = &magician_playback_ops,
434 .stream_name = "UDA1380 Capture",
435 .cpu_dai = &pxa_i2s_dai,
436 .codec_dai = &uda1380_dai[UDA1380_DAI_CAPTURE],
437 .ops = &magician_capture_ops,
441 /* magician audio machine driver */
442 static struct snd_soc_card snd_soc_card_magician = {
444 .dai_link = magician_dai,
445 .num_links = ARRAY_SIZE(magician_dai),
446 .platform = &pxa2xx_soc_platform,
449 /* magician audio private data */
450 static struct uda1380_setup_data magician_uda1380_setup = {
452 .dac_clk = UDA1380_DAC_CLK_WSPLL,
455 /* magician audio subsystem */
456 static struct snd_soc_device magician_snd_devdata = {
457 .card = &snd_soc_card_magician,
458 .codec_dev = &soc_codec_dev_uda1380,
459 .codec_data = &magician_uda1380_setup,
462 static struct platform_device *magician_snd_device;
464 static int __init magician_init(void)
468 if (!machine_is_magician())
471 ret = gpio_request(EGPIO_MAGICIAN_CODEC_POWER, "CODEC_POWER");
473 goto err_request_power;
474 ret = gpio_request(EGPIO_MAGICIAN_CODEC_RESET, "CODEC_RESET");
476 goto err_request_reset;
477 ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
479 goto err_request_spk;
480 ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
483 ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
485 goto err_request_mic;
486 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
488 goto err_request_in_sel0;
489 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
491 goto err_request_in_sel1;
493 gpio_set_value(EGPIO_MAGICIAN_CODEC_POWER, 1);
494 gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
496 /* we may need to have the clock running here - pH5 */
497 gpio_set_value(EGPIO_MAGICIAN_CODEC_RESET, 1);
499 gpio_set_value(EGPIO_MAGICIAN_CODEC_RESET, 0);
501 magician_snd_device = platform_device_alloc("soc-audio", -1);
502 if (!magician_snd_device) {
507 platform_set_drvdata(magician_snd_device, &magician_snd_devdata);
508 magician_snd_devdata.dev = &magician_snd_device->dev;
509 ret = platform_device_add(magician_snd_device);
511 platform_device_put(magician_snd_device);
518 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
520 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
522 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
524 gpio_free(EGPIO_MAGICIAN_EP_POWER);
526 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
528 gpio_free(EGPIO_MAGICIAN_CODEC_RESET);
530 gpio_free(EGPIO_MAGICIAN_CODEC_POWER);
535 static void __exit magician_exit(void)
537 platform_device_unregister(magician_snd_device);
539 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
540 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
541 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
542 gpio_set_value(EGPIO_MAGICIAN_CODEC_POWER, 0);
544 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
545 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
546 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
547 gpio_free(EGPIO_MAGICIAN_EP_POWER);
548 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
549 gpio_free(EGPIO_MAGICIAN_CODEC_RESET);
550 gpio_free(EGPIO_MAGICIAN_CODEC_POWER);
553 module_init(magician_init);
554 module_exit(magician_exit);
556 MODULE_AUTHOR("Philipp Zabel");
557 MODULE_DESCRIPTION("ALSA SoC Magician");
558 MODULE_LICENSE("GPL");