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
= "pxa-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");