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 if (magician_spk_switch)
48 snd_soc_dapm_enable_pin(codec, "Speaker");
50 snd_soc_dapm_disable_pin(codec, "Speaker");
51 if (magician_hp_switch)
52 snd_soc_dapm_enable_pin(codec, "Headphone Jack");
54 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
56 switch (magician_in_sel) {
58 snd_soc_dapm_disable_pin(codec, "Headset Mic");
59 snd_soc_dapm_enable_pin(codec, "Call Mic");
61 case MAGICIAN_MIC_EXT:
62 snd_soc_dapm_disable_pin(codec, "Call Mic");
63 snd_soc_dapm_enable_pin(codec, "Headset Mic");
67 snd_soc_dapm_sync(codec);
70 static int magician_startup(struct snd_pcm_substream *substream)
72 struct snd_soc_pcm_runtime *rtd = substream->private_data;
73 struct snd_soc_codec *codec = rtd->codec;
75 /* check the jack status at stream startup */
76 magician_ext_control(codec);
82 * Magician uses SSP port for playback.
84 static int magician_playback_hw_params(struct snd_pcm_substream *substream,
85 struct snd_pcm_hw_params *params)
87 struct snd_soc_pcm_runtime *rtd = substream->private_data;
88 struct snd_soc_dai *codec_dai = rtd->codec_dai;
89 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
90 unsigned int acps, acds, width, rate;
91 unsigned int div4 = PXA_SSP_CLK_SCDB_4;
94 rate = params_rate(params);
95 width = snd_pcm_format_physical_width(params_format(params));
98 * rate = SSPSCLK / (2 * width(16 or 32))
99 * SSPSCLK = (ACPS / ACDS) / SSPSCLKDIV(div4 or div1)
101 switch (params_rate(params)) {
103 /* off by a factor of 2: bug in the PXA27x audio clock? */
107 /* 513156 Hz ~= _2_ * 8000 Hz * 32 (+0.23%) */
108 acds = PXA_SSP_CLK_AUDIO_DIV_16;
111 /* 1026312 Hz ~= _2_ * 8000 Hz * 64 (+0.23%) */
112 acds = PXA_SSP_CLK_AUDIO_DIV_8;
119 /* 351375 Hz ~= 11025 Hz * 32 (-0.41%) */
120 acds = PXA_SSP_CLK_AUDIO_DIV_4;
123 /* 702750 Hz ~= 11025 Hz * 64 (-0.41%) */
124 acds = PXA_SSP_CLK_AUDIO_DIV_2;
131 /* 702750 Hz ~= 22050 Hz * 32 (-0.41%) */
132 acds = PXA_SSP_CLK_AUDIO_DIV_2;
135 /* 1405500 Hz ~= 22050 Hz * 64 (-0.41%) */
136 acds = PXA_SSP_CLK_AUDIO_DIV_1;
143 /* 1405500 Hz ~= 44100 Hz * 32 (-0.41%) */
144 acds = PXA_SSP_CLK_AUDIO_DIV_2;
147 /* 2811000 Hz ~= 44100 Hz * 64 (-0.41%) */
148 acds = PXA_SSP_CLK_AUDIO_DIV_1;
155 /* 1529375 Hz ~= 48000 Hz * 32 (-0.44%) */
156 acds = PXA_SSP_CLK_AUDIO_DIV_2;
159 /* 3058750 Hz ~= 48000 Hz * 64 (-0.44%) */
160 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_NB_IF | SND_SOC_DAIFMT_CBS_CFS);
192 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
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, 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->codec_dai;
230 struct snd_soc_dai *cpu_dai = rtd->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_pcm_runtime *rtd)
397 struct snd_soc_codec *codec = rtd->codec;
401 snd_soc_dapm_nc_pin(codec, "VOUTLHP");
402 snd_soc_dapm_nc_pin(codec, "VOUTRHP");
404 /* FIXME: is anything connected here? */
405 snd_soc_dapm_nc_pin(codec, "VINL");
406 snd_soc_dapm_nc_pin(codec, "VINR");
408 /* Add magician specific controls */
409 err = snd_soc_add_controls(codec, uda1380_magician_controls,
410 ARRAY_SIZE(uda1380_magician_controls));
414 /* Add magician specific widgets */
415 snd_soc_dapm_new_controls(codec, uda1380_dapm_widgets,
416 ARRAY_SIZE(uda1380_dapm_widgets));
418 /* Set up magician specific audio path interconnects */
419 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
421 snd_soc_dapm_sync(codec);
425 /* magician digital audio interface glue - connects codec <--> CPU */
426 static struct snd_soc_dai_link magician_dai[] = {
429 .stream_name = "UDA1380 Playback",
430 .cpu_dai_name = "pxa-ssp-dai.0",
431 .codec_dai_name = "uda1380-hifi-playback",
432 .platform_name = "pxa-pcm-audio",
433 .codec_name = "uda1380-codec.0-0018",
434 .init = magician_uda1380_init,
435 .ops = &magician_playback_ops,
439 .stream_name = "UDA1380 Capture",
440 .cpu_dai_name = "pxa2xx-i2s",
441 .codec_dai_name = "uda1380-hifi-capture",
442 .platform_name = "pxa-pcm-audio",
443 .codec_name = "uda1380-codec.0-0018",
444 .ops = &magician_capture_ops,
448 /* magician audio machine driver */
449 static struct snd_soc_card snd_soc_card_magician = {
451 .dai_link = magician_dai,
452 .num_links = ARRAY_SIZE(magician_dai),
456 static struct platform_device *magician_snd_device;
459 * FIXME: move into magician board file once merged into the pxa tree
461 static struct uda1380_platform_data uda1380_info = {
462 .gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
463 .gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
464 .dac_clk = UDA1380_DAC_CLK_WSPLL,
467 static struct i2c_board_info i2c_board_info[] = {
469 I2C_BOARD_INFO("uda1380", 0x18),
470 .platform_data = &uda1380_info,
474 static int __init magician_init(void)
477 struct i2c_adapter *adapter;
478 struct i2c_client *client;
480 if (!machine_is_magician())
483 adapter = i2c_get_adapter(0);
486 client = i2c_new_device(adapter, i2c_board_info);
487 i2c_put_adapter(adapter);
491 ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
493 goto err_request_spk;
494 ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
497 ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
499 goto err_request_mic;
500 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
502 goto err_request_in_sel0;
503 ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
505 goto err_request_in_sel1;
507 gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
509 magician_snd_device = platform_device_alloc("soc-audio", -1);
510 if (!magician_snd_device) {
515 platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
516 ret = platform_device_add(magician_snd_device);
518 platform_device_put(magician_snd_device);
525 gpio_free(EGPIO_MAGICIAN_IN_SEL1);
527 gpio_free(EGPIO_MAGICIAN_IN_SEL0);
529 gpio_free(EGPIO_MAGICIAN_MIC_POWER);
531 gpio_free(EGPIO_MAGICIAN_EP_POWER);
533 gpio_free(EGPIO_MAGICIAN_SPK_POWER);
538 static void __exit magician_exit(void)
540 platform_device_unregister(magician_snd_device);
542 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
543 gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
544 gpio_set_value(EGPIO_MAGICIAN_MIC_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);
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");