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
;
167 /* 3058750 Hz ~= 96000 Hz * 32 (-0.44%) */
168 acds
= PXA_SSP_CLK_AUDIO_DIV_1
;
171 /* 6117500 Hz ~= 96000 Hz * 64 (-0.44%) */
172 acds
= PXA_SSP_CLK_AUDIO_DIV_2
;
173 div4
= PXA_SSP_CLK_SCDB_1
;
179 /* set codec DAI configuration */
180 ret
= snd_soc_dai_set_fmt(codec_dai
, SND_SOC_DAIFMT_MSB
|
181 SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS
);
185 /* set cpu DAI configuration */
186 ret
= snd_soc_dai_set_fmt(cpu_dai
, SND_SOC_DAIFMT_DSP_A
|
187 SND_SOC_DAIFMT_NB_IF
| SND_SOC_DAIFMT_CBS_CFS
);
191 ret
= snd_soc_dai_set_tdm_slot(cpu_dai
, 1, 1);
195 /* set audio clock as clock source */
196 ret
= snd_soc_dai_set_sysclk(cpu_dai
, PXA_SSP_CLK_AUDIO
, 0,
201 /* set the SSP audio system clock ACDS divider */
202 ret
= snd_soc_dai_set_clkdiv(cpu_dai
,
203 PXA_SSP_AUDIO_DIV_ACDS
, acds
);
207 /* set the SSP audio system clock SCDB divider4 */
208 ret
= snd_soc_dai_set_clkdiv(cpu_dai
,
209 PXA_SSP_AUDIO_DIV_SCDB
, div4
);
213 /* set SSP audio pll clock */
214 ret
= snd_soc_dai_set_pll(cpu_dai
, 0, 0, acps
);
222 * Magician uses I2S for capture.
224 static int magician_capture_hw_params(struct snd_pcm_substream
*substream
,
225 struct snd_pcm_hw_params
*params
)
227 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
228 struct snd_soc_dai
*codec_dai
= rtd
->dai
->codec_dai
;
229 struct snd_soc_dai
*cpu_dai
= rtd
->dai
->cpu_dai
;
232 /* set codec DAI configuration */
233 ret
= snd_soc_dai_set_fmt(codec_dai
,
234 SND_SOC_DAIFMT_MSB
| SND_SOC_DAIFMT_NB_NF
|
235 SND_SOC_DAIFMT_CBS_CFS
);
239 /* set cpu DAI configuration */
240 ret
= snd_soc_dai_set_fmt(cpu_dai
,
241 SND_SOC_DAIFMT_MSB
| SND_SOC_DAIFMT_NB_NF
|
242 SND_SOC_DAIFMT_CBS_CFS
);
246 /* set the I2S system clock as output */
247 ret
= snd_soc_dai_set_sysclk(cpu_dai
, PXA2XX_I2S_SYSCLK
, 0,
255 static struct snd_soc_ops magician_capture_ops
= {
256 .startup
= magician_startup
,
257 .hw_params
= magician_capture_hw_params
,
260 static struct snd_soc_ops magician_playback_ops
= {
261 .startup
= magician_startup
,
262 .hw_params
= magician_playback_hw_params
,
265 static int magician_get_hp(struct snd_kcontrol
*kcontrol
,
266 struct snd_ctl_elem_value
*ucontrol
)
268 ucontrol
->value
.integer
.value
[0] = magician_hp_switch
;
272 static int magician_set_hp(struct snd_kcontrol
*kcontrol
,
273 struct snd_ctl_elem_value
*ucontrol
)
275 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
277 if (magician_hp_switch
== ucontrol
->value
.integer
.value
[0])
280 magician_hp_switch
= ucontrol
->value
.integer
.value
[0];
281 magician_ext_control(codec
);
285 static int magician_get_spk(struct snd_kcontrol
*kcontrol
,
286 struct snd_ctl_elem_value
*ucontrol
)
288 ucontrol
->value
.integer
.value
[0] = magician_spk_switch
;
292 static int magician_set_spk(struct snd_kcontrol
*kcontrol
,
293 struct snd_ctl_elem_value
*ucontrol
)
295 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
297 if (magician_spk_switch
== ucontrol
->value
.integer
.value
[0])
300 magician_spk_switch
= ucontrol
->value
.integer
.value
[0];
301 magician_ext_control(codec
);
305 static int magician_get_input(struct snd_kcontrol
*kcontrol
,
306 struct snd_ctl_elem_value
*ucontrol
)
308 ucontrol
->value
.integer
.value
[0] = magician_in_sel
;
312 static int magician_set_input(struct snd_kcontrol
*kcontrol
,
313 struct snd_ctl_elem_value
*ucontrol
)
315 if (magician_in_sel
== ucontrol
->value
.integer
.value
[0])
318 magician_in_sel
= ucontrol
->value
.integer
.value
[0];
320 switch (magician_in_sel
) {
322 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1
, 1);
324 case MAGICIAN_MIC_EXT
:
325 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1
, 0);
331 static int magician_spk_power(struct snd_soc_dapm_widget
*w
,
332 struct snd_kcontrol
*k
, int event
)
334 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER
, SND_SOC_DAPM_EVENT_ON(event
));
338 static int magician_hp_power(struct snd_soc_dapm_widget
*w
,
339 struct snd_kcontrol
*k
, int event
)
341 gpio_set_value(EGPIO_MAGICIAN_EP_POWER
, SND_SOC_DAPM_EVENT_ON(event
));
345 static int magician_mic_bias(struct snd_soc_dapm_widget
*w
,
346 struct snd_kcontrol
*k
, int event
)
348 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER
, SND_SOC_DAPM_EVENT_ON(event
));
352 /* magician machine dapm widgets */
353 static const struct snd_soc_dapm_widget uda1380_dapm_widgets
[] = {
354 SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power
),
355 SND_SOC_DAPM_SPK("Speaker", magician_spk_power
),
356 SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias
),
357 SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias
),
360 /* magician machine audio_map */
361 static const struct snd_soc_dapm_route audio_map
[] = {
363 /* Headphone connected to VOUTL, VOUTR */
364 {"Headphone Jack", NULL
, "VOUTL"},
365 {"Headphone Jack", NULL
, "VOUTR"},
367 /* Speaker connected to VOUTL, VOUTR */
368 {"Speaker", NULL
, "VOUTL"},
369 {"Speaker", NULL
, "VOUTR"},
371 /* Mics are connected to VINM */
372 {"VINM", NULL
, "Headset Mic"},
373 {"VINM", NULL
, "Call Mic"},
376 static const char *input_select
[] = {"Call Mic", "Headset Mic"};
377 static const struct soc_enum magician_in_sel_enum
=
378 SOC_ENUM_SINGLE_EXT(2, input_select
);
380 static const struct snd_kcontrol_new uda1380_magician_controls
[] = {
381 SOC_SINGLE_BOOL_EXT("Headphone Switch",
382 (unsigned long)&magician_hp_switch
,
383 magician_get_hp
, magician_set_hp
),
384 SOC_SINGLE_BOOL_EXT("Speaker Switch",
385 (unsigned long)&magician_spk_switch
,
386 magician_get_spk
, magician_set_spk
),
387 SOC_ENUM_EXT("Input Select", magician_in_sel_enum
,
388 magician_get_input
, magician_set_input
),
392 * Logic for a uda1380 as connected on a HTC Magician
394 static int magician_uda1380_init(struct snd_soc_codec
*codec
)
399 snd_soc_dapm_nc_pin(codec
, "VOUTLHP");
400 snd_soc_dapm_nc_pin(codec
, "VOUTRHP");
402 /* FIXME: is anything connected here? */
403 snd_soc_dapm_nc_pin(codec
, "VINL");
404 snd_soc_dapm_nc_pin(codec
, "VINR");
406 /* Add magician specific controls */
407 err
= snd_soc_add_controls(codec
, uda1380_magician_controls
,
408 ARRAY_SIZE(uda1380_magician_controls
));
412 /* Add magician specific widgets */
413 snd_soc_dapm_new_controls(codec
, uda1380_dapm_widgets
,
414 ARRAY_SIZE(uda1380_dapm_widgets
));
416 /* Set up magician specific audio path interconnects */
417 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
419 snd_soc_dapm_sync(codec
);
423 /* magician digital audio interface glue - connects codec <--> CPU */
424 static struct snd_soc_dai_link magician_dai
[] = {
427 .stream_name
= "UDA1380 Playback",
428 .cpu_dai
= &pxa_ssp_dai
[PXA_DAI_SSP1
],
429 .codec_dai
= &uda1380_dai
[UDA1380_DAI_PLAYBACK
],
430 .init
= magician_uda1380_init
,
431 .ops
= &magician_playback_ops
,
435 .stream_name
= "UDA1380 Capture",
436 .cpu_dai
= &pxa_i2s_dai
,
437 .codec_dai
= &uda1380_dai
[UDA1380_DAI_CAPTURE
],
438 .ops
= &magician_capture_ops
,
442 /* magician audio machine driver */
443 static struct snd_soc_card snd_soc_card_magician
= {
445 .dai_link
= magician_dai
,
446 .num_links
= ARRAY_SIZE(magician_dai
),
447 .platform
= &pxa2xx_soc_platform
,
450 /* magician audio private data */
451 static struct uda1380_setup_data magician_uda1380_setup
= {
453 .dac_clk
= UDA1380_DAC_CLK_WSPLL
,
456 /* magician audio subsystem */
457 static struct snd_soc_device magician_snd_devdata
= {
458 .card
= &snd_soc_card_magician
,
459 .codec_dev
= &soc_codec_dev_uda1380
,
460 .codec_data
= &magician_uda1380_setup
,
463 static struct platform_device
*magician_snd_device
;
465 static int __init
magician_init(void)
469 if (!machine_is_magician())
472 ret
= gpio_request(EGPIO_MAGICIAN_CODEC_POWER
, "CODEC_POWER");
474 goto err_request_power
;
475 ret
= gpio_request(EGPIO_MAGICIAN_CODEC_RESET
, "CODEC_RESET");
477 goto err_request_reset
;
478 ret
= gpio_request(EGPIO_MAGICIAN_SPK_POWER
, "SPK_POWER");
480 goto err_request_spk
;
481 ret
= gpio_request(EGPIO_MAGICIAN_EP_POWER
, "EP_POWER");
484 ret
= gpio_request(EGPIO_MAGICIAN_MIC_POWER
, "MIC_POWER");
486 goto err_request_mic
;
487 ret
= gpio_request(EGPIO_MAGICIAN_IN_SEL0
, "IN_SEL0");
489 goto err_request_in_sel0
;
490 ret
= gpio_request(EGPIO_MAGICIAN_IN_SEL1
, "IN_SEL1");
492 goto err_request_in_sel1
;
494 gpio_set_value(EGPIO_MAGICIAN_CODEC_POWER
, 1);
495 gpio_set_value(EGPIO_MAGICIAN_IN_SEL0
, 0);
497 /* we may need to have the clock running here - pH5 */
498 gpio_set_value(EGPIO_MAGICIAN_CODEC_RESET
, 1);
500 gpio_set_value(EGPIO_MAGICIAN_CODEC_RESET
, 0);
502 magician_snd_device
= platform_device_alloc("soc-audio", -1);
503 if (!magician_snd_device
) {
508 platform_set_drvdata(magician_snd_device
, &magician_snd_devdata
);
509 magician_snd_devdata
.dev
= &magician_snd_device
->dev
;
510 ret
= platform_device_add(magician_snd_device
);
512 platform_device_put(magician_snd_device
);
519 gpio_free(EGPIO_MAGICIAN_IN_SEL1
);
521 gpio_free(EGPIO_MAGICIAN_IN_SEL0
);
523 gpio_free(EGPIO_MAGICIAN_MIC_POWER
);
525 gpio_free(EGPIO_MAGICIAN_EP_POWER
);
527 gpio_free(EGPIO_MAGICIAN_SPK_POWER
);
529 gpio_free(EGPIO_MAGICIAN_CODEC_RESET
);
531 gpio_free(EGPIO_MAGICIAN_CODEC_POWER
);
536 static void __exit
magician_exit(void)
538 platform_device_unregister(magician_snd_device
);
540 gpio_set_value(EGPIO_MAGICIAN_SPK_POWER
, 0);
541 gpio_set_value(EGPIO_MAGICIAN_EP_POWER
, 0);
542 gpio_set_value(EGPIO_MAGICIAN_MIC_POWER
, 0);
543 gpio_set_value(EGPIO_MAGICIAN_CODEC_POWER
, 0);
545 gpio_free(EGPIO_MAGICIAN_IN_SEL1
);
546 gpio_free(EGPIO_MAGICIAN_IN_SEL0
);
547 gpio_free(EGPIO_MAGICIAN_MIC_POWER
);
548 gpio_free(EGPIO_MAGICIAN_EP_POWER
);
549 gpio_free(EGPIO_MAGICIAN_SPK_POWER
);
550 gpio_free(EGPIO_MAGICIAN_CODEC_RESET
);
551 gpio_free(EGPIO_MAGICIAN_CODEC_POWER
);
554 module_init(magician_init
);
555 module_exit(magician_exit
);
557 MODULE_AUTHOR("Philipp Zabel");
558 MODULE_DESCRIPTION("ALSA SoC Magician");
559 MODULE_LICENSE("GPL");