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[openwrt/openwrt.git] / target / linux / brcm2708 / patches-3.18 / 0061-Added-driver-for-HiFiBerry-Amp-amplifier-add-on-boar.patch
1 From 709288ac793d8a070f33c36e76ca03281fa6b417 Mon Sep 17 00:00:00 2001
2 From: Daniel Matuschek <info@crazy-audio.com>
3 Date: Mon, 4 Aug 2014 11:09:58 +0200
4 Subject: [PATCH 061/114] Added driver for HiFiBerry Amp amplifier add-on board
5
6 The driver contains a low-level hardware driver for the TAS5713 and the
7 drivers for the Raspberry Pi I2S subsystem.
8 ---
9 arch/arm/configs/bcmrpi_defconfig | 1 +
10 arch/arm/mach-bcm2708/bcm2708.c | 20 +++
11 sound/soc/bcm/Kconfig | 7 +
12 sound/soc/bcm/Makefile | 2 +
13 sound/soc/bcm/hifiberry_amp.c | 106 +++++++++++
14 sound/soc/codecs/Kconfig | 4 +
15 sound/soc/codecs/Makefile | 2 +
16 sound/soc/codecs/tas5713.c | 362 ++++++++++++++++++++++++++++++++++++++
17 sound/soc/codecs/tas5713.h | 210 ++++++++++++++++++++++
18 9 files changed, 714 insertions(+)
19 create mode 100644 sound/soc/bcm/hifiberry_amp.c
20 create mode 100644 sound/soc/codecs/tas5713.c
21 create mode 100644 sound/soc/codecs/tas5713.h
22
23 diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig
24 index 28547eb..997e1f3 100644
25 --- a/arch/arm/configs/bcmrpi_defconfig
26 +++ b/arch/arm/configs/bcmrpi_defconfig
27 @@ -758,6 +758,7 @@ CONFIG_SND_BCM2708_SOC_I2S=m
28 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m
29 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m
30 CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m
31 +CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m
32 CONFIG_SND_BCM2708_SOC_RPI_DAC=m
33 CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m
34 CONFIG_SND_SIMPLE_CARD=m
35 diff --git a/arch/arm/mach-bcm2708/bcm2708.c b/arch/arm/mach-bcm2708/bcm2708.c
36 index aa62e55..5f6a1fa 100644
37 --- a/arch/arm/mach-bcm2708/bcm2708.c
38 +++ b/arch/arm/mach-bcm2708/bcm2708.c
39 @@ -674,6 +674,20 @@ static struct i2c_board_info __initdata snd_wm8804_i2c_devices[] = {
40
41 #endif
42
43 +#if defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) || defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP_MODULE)
44 +static struct platform_device snd_hifiberry_amp_device = {
45 + .name = "snd-hifiberry-amp",
46 + .id = 0,
47 + .num_resources = 0,
48 +};
49 +
50 +static struct i2c_board_info __initdata snd_tas5713_i2c_devices[] = {
51 + {
52 + I2C_BOARD_INFO("tas5713", 0x1b)
53 + },
54 +};
55 +#endif
56 +
57 #if defined(CONFIG_SND_BCM2708_SOC_RPI_DAC) || defined(CONFIG_SND_BCM2708_SOC_RPI_DAC_MODULE)
58 static struct platform_device snd_rpi_dac_device = {
59 .name = "snd-rpi-dac",
60 @@ -869,6 +883,12 @@ void __init bcm2708_init(void)
61 i2c_register_board_info(1, snd_wm8804_i2c_devices, ARRAY_SIZE(snd_wm8804_i2c_devices));
62 #endif
63
64 +#if defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) || defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP_MODULE)
65 + bcm_register_device(&snd_hifiberry_amp_device);
66 + i2c_register_board_info(1, snd_tas5713_i2c_devices, ARRAY_SIZE(snd_tas5713_i2c_devices));
67 +#endif
68 +
69 +
70 #if defined(CONFIG_SND_BCM2708_SOC_RPI_DAC) || defined(CONFIG_SND_BCM2708_SOC_RPI_DAC_MODULE)
71 bcm_register_device(&snd_rpi_dac_device);
72 bcm_register_device(&snd_pcm1794a_codec_device);
73 diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig
74 index 926a82b..a562ddf 100644
75 --- a/sound/soc/bcm/Kconfig
76 +++ b/sound/soc/bcm/Kconfig
77 @@ -40,6 +40,13 @@ config SND_BCM2708_SOC_HIFIBERRY_DIGI
78 help
79 Say Y or M if you want to add support for HifiBerry Digi S/PDIF output board.
80
81 +config SND_BCM2708_SOC_HIFIBERRY_AMP
82 + tristate "Support for the HifiBerry Amp"
83 + depends on SND_BCM2708_SOC_I2S
84 + select SND_SOC_TAS5713
85 + help
86 + Say Y or M if you want to add support for the HifiBerry Amp amplifier board.
87 +
88 config SND_BCM2708_SOC_RPI_DAC
89 tristate "Support for RPi-DAC"
90 depends on SND_BCM2708_SOC_I2S
91 diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile
92 index c02e3a2..17ea2b0 100644
93 --- a/sound/soc/bcm/Makefile
94 +++ b/sound/soc/bcm/Makefile
95 @@ -12,11 +12,13 @@ obj-$(CONFIG_SND_BCM2708_SOC_I2S) += snd-soc-bcm2708-i2s.o
96 snd-soc-hifiberry-dac-objs := hifiberry_dac.o
97 snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o
98 snd-soc-hifiberry-digi-objs := hifiberry_digi.o
99 +snd-soc-hifiberry-amp-objs := hifiberry_amp.o
100 snd-soc-rpi-dac-objs := rpi-dac.o
101 snd-soc-iqaudio-dac-objs := iqaudio-dac.o
102
103 obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o
104 obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
105 obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o
106 +obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o
107 obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o
108 obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o
109 diff --git a/sound/soc/bcm/hifiberry_amp.c b/sound/soc/bcm/hifiberry_amp.c
110 new file mode 100644
111 index 0000000..1e87ee0
112 --- /dev/null
113 +++ b/sound/soc/bcm/hifiberry_amp.c
114 @@ -0,0 +1,106 @@
115 +/*
116 + * ASoC Driver for HifiBerry AMP
117 + *
118 + * Author: Sebastian Eickhoff <basti.eickhoff@googlemail.com>
119 + * Copyright 2014
120 + *
121 + * This program is free software; you can redistribute it and/or
122 + * modify it under the terms of the GNU General Public License
123 + * version 2 as published by the Free Software Foundation.
124 + *
125 + * This program is distributed in the hope that it will be useful, but
126 + * WITHOUT ANY WARRANTY; without even the implied warranty of
127 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
128 + * General Public License for more details.
129 + */
130 +
131 +#include <linux/module.h>
132 +#include <linux/platform_device.h>
133 +
134 +#include <sound/core.h>
135 +#include <sound/pcm.h>
136 +#include <sound/pcm_params.h>
137 +#include <sound/soc.h>
138 +#include <sound/jack.h>
139 +
140 +static int snd_rpi_hifiberry_amp_init(struct snd_soc_pcm_runtime *rtd)
141 +{
142 + // ToDo: init of the dsp-registers.
143 + return 0;
144 +}
145 +
146 +static int snd_rpi_hifiberry_amp_hw_params( struct snd_pcm_substream *substream,
147 + struct snd_pcm_hw_params *params )
148 +{
149 + struct snd_soc_pcm_runtime *rtd = substream->private_data;
150 + struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
151 +
152 + return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
153 +}
154 +
155 +static struct snd_soc_ops snd_rpi_hifiberry_amp_ops = {
156 + .hw_params = snd_rpi_hifiberry_amp_hw_params,
157 +};
158 +
159 +static struct snd_soc_dai_link snd_rpi_hifiberry_amp_dai[] = {
160 + {
161 + .name = "HifiBerry AMP",
162 + .stream_name = "HifiBerry AMP HiFi",
163 + .cpu_dai_name = "bcm2708-i2s.0",
164 + .codec_dai_name = "tas5713-hifi",
165 + .platform_name = "bcm2708-i2s.0",
166 + .codec_name = "tas5713.1-001b",
167 + .dai_fmt = SND_SOC_DAIFMT_I2S |
168 + SND_SOC_DAIFMT_NB_NF |
169 + SND_SOC_DAIFMT_CBS_CFS,
170 + .ops = &snd_rpi_hifiberry_amp_ops,
171 + .init = snd_rpi_hifiberry_amp_init,
172 + },
173 +};
174 +
175 +
176 +static struct snd_soc_card snd_rpi_hifiberry_amp = {
177 + .name = "snd_rpi_hifiberry_amp",
178 + .dai_link = snd_rpi_hifiberry_amp_dai,
179 + .num_links = ARRAY_SIZE(snd_rpi_hifiberry_amp_dai),
180 +};
181 +
182 +
183 +static int snd_rpi_hifiberry_amp_probe(struct platform_device *pdev)
184 +{
185 + int ret = 0;
186 +
187 + snd_rpi_hifiberry_amp.dev = &pdev->dev;
188 +
189 + ret = snd_soc_register_card(&snd_rpi_hifiberry_amp);
190 +
191 + if (ret != 0) {
192 + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
193 + }
194 +
195 + return ret;
196 +}
197 +
198 +
199 +static int snd_rpi_hifiberry_amp_remove(struct platform_device *pdev)
200 +{
201 + return snd_soc_unregister_card(&snd_rpi_hifiberry_amp);
202 +}
203 +
204 +
205 +static struct platform_driver snd_rpi_hifiberry_amp_driver = {
206 + .driver = {
207 + .name = "snd-hifiberry-amp",
208 + .owner = THIS_MODULE,
209 + },
210 + .probe = snd_rpi_hifiberry_amp_probe,
211 + .remove = snd_rpi_hifiberry_amp_remove,
212 +};
213 +
214 +
215 +module_platform_driver(snd_rpi_hifiberry_amp_driver);
216 +
217 +
218 +MODULE_AUTHOR("Sebastian Eickhoff <basti.eickhoff@googlemail.com>");
219 +MODULE_DESCRIPTION("ASoC driver for HiFiBerry-AMP");
220 +MODULE_LICENSE("GPL v2");
221 diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
222 index 3c236a6..83c55f8 100644
223 --- a/sound/soc/codecs/Kconfig
224 +++ b/sound/soc/codecs/Kconfig
225 @@ -105,6 +105,7 @@ config SND_SOC_ALL_CODECS
226 select SND_SOC_TAS5086 if I2C
227 select SND_SOC_TLV320AIC23_I2C if I2C
228 select SND_SOC_TLV320AIC23_SPI if SPI_MASTER
229 + select SND_SOC_TAS5713 if I2C
230 select SND_SOC_TLV320AIC26 if SPI_MASTER
231 select SND_SOC_TLV320AIC31XX if I2C
232 select SND_SOC_TLV320AIC32X4 if I2C
233 @@ -585,6 +586,9 @@ config SND_SOC_TAS5086
234 tristate "Texas Instruments TAS5086 speaker amplifier"
235 depends on I2C
236
237 +config SND_SOC_TAS5713
238 + tristate
239 +
240 config SND_SOC_TLV320AIC23
241 tristate
242
243 diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
244 index 2a7f823..ca76a2b 100644
245 --- a/sound/soc/codecs/Makefile
246 +++ b/sound/soc/codecs/Makefile
247 @@ -103,6 +103,7 @@ snd-soc-sta350-objs := sta350.o
248 snd-soc-sta529-objs := sta529.o
249 snd-soc-stac9766-objs := stac9766.o
250 snd-soc-tas5086-objs := tas5086.o
251 +snd-soc-tas5713-objs := tas5713.o
252 snd-soc-tlv320aic23-objs := tlv320aic23.o
253 snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o
254 snd-soc-tlv320aic23-spi-objs := tlv320aic23-spi.o
255 @@ -278,6 +279,7 @@ obj-$(CONFIG_SND_SOC_STA529) += snd-soc-sta529.o
256 obj-$(CONFIG_SND_SOC_STAC9766) += snd-soc-stac9766.o
257 obj-$(CONFIG_SND_SOC_TAS2552) += snd-soc-tas2552.o
258 obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o
259 +obj-$(CONFIG_SND_SOC_TAS5713) += snd-soc-tas5713.o
260 obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o
261 obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C) += snd-soc-tlv320aic23-i2c.o
262 obj-$(CONFIG_SND_SOC_TLV320AIC23_SPI) += snd-soc-tlv320aic23-spi.o
263 diff --git a/sound/soc/codecs/tas5713.c b/sound/soc/codecs/tas5713.c
264 new file mode 100644
265 index 0000000..a24c1da
266 --- /dev/null
267 +++ b/sound/soc/codecs/tas5713.c
268 @@ -0,0 +1,362 @@
269 +/*
270 + * ASoC Driver for TAS5713
271 + *
272 + * Author: Sebastian Eickhoff <basti.eickhoff@googlemail.com>
273 + * Copyright 2014
274 + *
275 + * This program is free software; you can redistribute it and/or
276 + * modify it under the terms of the GNU General Public License
277 + * version 2 as published by the Free Software Foundation.
278 + *
279 + * This program is distributed in the hope that it will be useful, but
280 + * WITHOUT ANY WARRANTY; without even the implied warranty of
281 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
282 + * General Public License for more details.
283 + */
284 +
285 +#include <linux/module.h>
286 +#include <linux/moduleparam.h>
287 +#include <linux/init.h>
288 +#include <linux/delay.h>
289 +#include <linux/pm.h>
290 +#include <linux/i2c.h>
291 +#include <linux/of_device.h>
292 +#include <linux/spi/spi.h>
293 +#include <linux/regmap.h>
294 +#include <linux/regulator/consumer.h>
295 +#include <linux/slab.h>
296 +#include <sound/core.h>
297 +#include <sound/pcm.h>
298 +#include <sound/pcm_params.h>
299 +#include <sound/soc.h>
300 +#include <sound/initval.h>
301 +#include <sound/tlv.h>
302 +
303 +#include <linux/kernel.h>
304 +#include <linux/string.h>
305 +#include <linux/fs.h>
306 +#include <asm/uaccess.h>
307 +
308 +#include "tas5713.h"
309 +
310 +
311 +static struct i2c_client *i2c;
312 +
313 +struct tas5713_priv {
314 + struct regmap *regmap;
315 + int mclk_div;
316 + struct snd_soc_codec *codec;
317 +};
318 +
319 +static struct tas5713_priv *priv_data;
320 +
321 +
322 +
323 +
324 +/*
325 + * _ _ ___ _ ___ _ _
326 + * /_\ | | / __| /_\ / __|___ _ _| |_ _ _ ___| |___
327 + * / _ \| |__\__ \/ _ \ | (__/ _ \ ' \ _| '_/ _ \ (_-<
328 + * /_/ \_\____|___/_/ \_\ \___\___/_||_\__|_| \___/_/__/
329 + *
330 + */
331 +
332 +static const DECLARE_TLV_DB_SCALE(tas5713_vol_tlv, -10000, 50, 1);
333 +
334 +
335 +static const struct snd_kcontrol_new tas5713_snd_controls[] = {
336 + SOC_SINGLE_TLV ("Master" , TAS5713_VOL_MASTER, 0, 248, 1, tas5713_vol_tlv),
337 + SOC_DOUBLE_R_TLV("Channels" , TAS5713_VOL_CH1, TAS5713_VOL_CH2, 0, 248, 1, tas5713_vol_tlv)
338 +};
339 +
340 +
341 +
342 +
343 +/*
344 + * __ __ _ _ ___ _
345 + * | \/ |__ _ __| |_ (_)_ _ ___ | \ _ _(_)_ _____ _ _
346 + * | |\/| / _` / _| ' \| | ' \/ -_) | |) | '_| \ V / -_) '_|
347 + * |_| |_\__,_\__|_||_|_|_||_\___| |___/|_| |_|\_/\___|_|
348 + *
349 + */
350 +
351 +static int tas5713_hw_params(struct snd_pcm_substream *substream,
352 + struct snd_pcm_hw_params *params,
353 + struct snd_soc_dai *dai)
354 +{
355 + u16 blen = 0x00;
356 +
357 + struct snd_soc_codec *codec;
358 + codec = dai->codec;
359 + priv_data->codec = dai->codec;
360 +
361 + switch (params_format(params)) {
362 + case SNDRV_PCM_FORMAT_S16_LE:
363 + blen = 0x03;
364 + break;
365 + case SNDRV_PCM_FORMAT_S20_3LE:
366 + blen = 0x1;
367 + break;
368 + case SNDRV_PCM_FORMAT_S24_LE:
369 + blen = 0x04;
370 + break;
371 + case SNDRV_PCM_FORMAT_S32_LE:
372 + blen = 0x05;
373 + break;
374 + default:
375 + dev_err(dai->dev, "Unsupported word length: %u\n",
376 + params_format(params));
377 + return -EINVAL;
378 + }
379 +
380 + // set word length
381 + snd_soc_update_bits(codec, TAS5713_SERIAL_DATA_INTERFACE, 0x7, blen);
382 +
383 + return 0;
384 +}
385 +
386 +
387 +static int tas5713_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
388 +{
389 + unsigned int val = 0;
390 +
391 + struct tas5713_priv *tas5713;
392 + struct snd_soc_codec *codec = dai->codec;
393 + tas5713 = snd_soc_codec_get_drvdata(codec);
394 +
395 + if (mute) {
396 + val = TAS5713_SOFT_MUTE_ALL;
397 + }
398 +
399 + return regmap_write(tas5713->regmap, TAS5713_SOFT_MUTE, val);
400 +}
401 +
402 +
403 +static const struct snd_soc_dai_ops tas5713_dai_ops = {
404 + .hw_params = tas5713_hw_params,
405 + .mute_stream = tas5713_mute_stream,
406 +};
407 +
408 +
409 +static struct snd_soc_dai_driver tas5713_dai = {
410 + .name = "tas5713-hifi",
411 + .playback = {
412 + .stream_name = "Playback",
413 + .channels_min = 2,
414 + .channels_max = 2,
415 + .rates = SNDRV_PCM_RATE_8000_48000,
416 + .formats = (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE ),
417 + },
418 + .ops = &tas5713_dai_ops,
419 +};
420 +
421 +
422 +
423 +
424 +/*
425 + * ___ _ ___ _
426 + * / __|___ __| |___ __ | \ _ _(_)_ _____ _ _
427 + * | (__/ _ \/ _` / -_) _| | |) | '_| \ V / -_) '_|
428 + * \___\___/\__,_\___\__| |___/|_| |_|\_/\___|_|
429 + *
430 + */
431 +
432 +static int tas5713_remove(struct snd_soc_codec *codec)
433 +{
434 + struct tas5713_priv *tas5713;
435 +
436 + tas5713 = snd_soc_codec_get_drvdata(codec);
437 +
438 + return 0;
439 +}
440 +
441 +
442 +static int tas5713_probe(struct snd_soc_codec *codec)
443 +{
444 + struct tas5713_priv *tas5713;
445 + int i, ret;
446 +
447 + i2c = container_of(codec->dev, struct i2c_client, dev);
448 +
449 + tas5713 = snd_soc_codec_get_drvdata(codec);
450 +
451 + // Reset error
452 + ret = snd_soc_write(codec, TAS5713_ERROR_STATUS, 0x00);
453 +
454 + // Trim oscillator
455 + ret = snd_soc_write(codec, TAS5713_OSC_TRIM, 0x00);
456 + msleep(1000);
457 +
458 + // Reset error
459 + ret = snd_soc_write(codec, TAS5713_ERROR_STATUS, 0x00);
460 +
461 + // Clock mode: 44/48kHz, MCLK=64xfs
462 + ret = snd_soc_write(codec, TAS5713_CLOCK_CTRL, 0x60);
463 +
464 + // I2S 24bit
465 + ret = snd_soc_write(codec, TAS5713_SERIAL_DATA_INTERFACE, 0x05);
466 +
467 + // Unmute
468 + ret = snd_soc_write(codec, TAS5713_SYSTEM_CTRL2, 0x00);
469 + ret = snd_soc_write(codec, TAS5713_SOFT_MUTE, 0x00);
470 +
471 + // Set volume to 0db
472 + ret = snd_soc_write(codec, TAS5713_VOL_MASTER, 0x00);
473 +
474 + // Now start programming the default initialization sequence
475 + for (i = 0; i < ARRAY_SIZE(tas5713_init_sequence); ++i) {
476 + ret = i2c_master_send(i2c,
477 + tas5713_init_sequence[i].data,
478 + tas5713_init_sequence[i].size);
479 +
480 + if (ret < 0) {
481 + printk(KERN_INFO "TAS5713 CODEC PROBE: InitSeq returns: %d\n", ret);
482 + }
483 + }
484 +
485 + // Unmute
486 + ret = snd_soc_write(codec, TAS5713_SYSTEM_CTRL2, 0x00);
487 +
488 +
489 + return 0;
490 +}
491 +
492 +
493 +static struct snd_soc_codec_driver soc_codec_dev_tas5713 = {
494 + .probe = tas5713_probe,
495 + .remove = tas5713_remove,
496 + .controls = tas5713_snd_controls,
497 + .num_controls = ARRAY_SIZE(tas5713_snd_controls),
498 +};
499 +
500 +
501 +
502 +
503 +/*
504 + * ___ ___ ___ ___ _
505 + * |_ _|_ ) __| | \ _ _(_)_ _____ _ _
506 + * | | / / (__ | |) | '_| \ V / -_) '_|
507 + * |___/___\___| |___/|_| |_|\_/\___|_|
508 + *
509 + */
510 +
511 +static const struct reg_default tas5713_reg_defaults[] = {
512 + { 0x07 ,0x80 }, // R7 - VOL_MASTER - -40dB
513 + { 0x08 , 30 }, // R8 - VOL_CH1 - 0dB
514 + { 0x09 , 30 }, // R9 - VOL_CH2 - 0dB
515 + { 0x0A ,0x80 }, // R10 - VOL_HEADPHONE - -40dB
516 +};
517 +
518 +
519 +static bool tas5713_reg_volatile(struct device *dev, unsigned int reg)
520 +{
521 + switch (reg) {
522 + case TAS5713_DEVICE_ID:
523 + case TAS5713_ERROR_STATUS:
524 + return true;
525 + default:
526 + return false;
527 + }
528 +}
529 +
530 +
531 +static const struct of_device_id tas5713_of_match[] = {
532 + { .compatible = "ti,tas5713", },
533 + { }
534 +};
535 +MODULE_DEVICE_TABLE(of, tas5713_of_match);
536 +
537 +
538 +static struct regmap_config tas5713_regmap_config = {
539 + .reg_bits = 8,
540 + .val_bits = 8,
541 +
542 + .max_register = TAS5713_MAX_REGISTER,
543 + .volatile_reg = tas5713_reg_volatile,
544 +
545 + .cache_type = REGCACHE_RBTREE,
546 + .reg_defaults = tas5713_reg_defaults,
547 + .num_reg_defaults = ARRAY_SIZE(tas5713_reg_defaults),
548 +};
549 +
550 +
551 +static int tas5713_i2c_probe(struct i2c_client *i2c,
552 + const struct i2c_device_id *id)
553 +{
554 + int ret;
555 +
556 + priv_data = devm_kzalloc(&i2c->dev, sizeof *priv_data, GFP_KERNEL);
557 + if (!priv_data)
558 + return -ENOMEM;
559 +
560 + priv_data->regmap = devm_regmap_init_i2c(i2c, &tas5713_regmap_config);
561 + if (IS_ERR(priv_data->regmap)) {
562 + ret = PTR_ERR(priv_data->regmap);
563 + return ret;
564 + }
565 +
566 + i2c_set_clientdata(i2c, priv_data);
567 +
568 + ret = snd_soc_register_codec(&i2c->dev,
569 + &soc_codec_dev_tas5713, &tas5713_dai, 1);
570 +
571 + return ret;
572 +}
573 +
574 +
575 +static int tas5713_i2c_remove(struct i2c_client *i2c)
576 +{
577 + snd_soc_unregister_codec(&i2c->dev);
578 + i2c_set_clientdata(i2c, NULL);
579 +
580 + kfree(priv_data);
581 +
582 + return 0;
583 +}
584 +
585 +
586 +static const struct i2c_device_id tas5713_i2c_id[] = {
587 + { "tas5713", 0 },
588 + { }
589 +};
590 +
591 +MODULE_DEVICE_TABLE(i2c, tas5713_i2c_id);
592 +
593 +
594 +static struct i2c_driver tas5713_i2c_driver = {
595 + .driver = {
596 + .name = "tas5713",
597 + .owner = THIS_MODULE,
598 + .of_match_table = tas5713_of_match,
599 + },
600 + .probe = tas5713_i2c_probe,
601 + .remove = tas5713_i2c_remove,
602 + .id_table = tas5713_i2c_id
603 +};
604 +
605 +
606 +static int __init tas5713_modinit(void)
607 +{
608 + int ret = 0;
609 +
610 + ret = i2c_add_driver(&tas5713_i2c_driver);
611 + if (ret) {
612 + printk(KERN_ERR "Failed to register tas5713 I2C driver: %d\n",
613 + ret);
614 + }
615 +
616 + return ret;
617 +}
618 +module_init(tas5713_modinit);
619 +
620 +
621 +static void __exit tas5713_exit(void)
622 +{
623 + i2c_del_driver(&tas5713_i2c_driver);
624 +}
625 +module_exit(tas5713_exit);
626 +
627 +
628 +MODULE_AUTHOR("Sebastian Eickhoff <basti.eickhoff@googlemail.com>");
629 +MODULE_DESCRIPTION("ASoC driver for TAS5713");
630 +MODULE_LICENSE("GPL v2");
631 diff --git a/sound/soc/codecs/tas5713.h b/sound/soc/codecs/tas5713.h
632 new file mode 100644
633 index 0000000..8f019e0
634 --- /dev/null
635 +++ b/sound/soc/codecs/tas5713.h
636 @@ -0,0 +1,210 @@
637 +/*
638 + * ASoC Driver for TAS5713
639 + *
640 + * Author: Sebastian Eickhoff <basti.eickhoff@googlemail.com>
641 + * Copyright 2014
642 + *
643 + * This program is free software; you can redistribute it and/or
644 + * modify it under the terms of the GNU General Public License
645 + * version 2 as published by the Free Software Foundation.
646 + *
647 + * This program is distributed in the hope that it will be useful, but
648 + * WITHOUT ANY WARRANTY; without even the implied warranty of
649 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
650 + * General Public License for more details.
651 + */
652 +
653 +#ifndef _TAS5713_H
654 +#define _TAS5713_H
655 +
656 +
657 +// TAS5713 I2C-bus register addresses
658 +
659 +#define TAS5713_CLOCK_CTRL 0x00
660 +#define TAS5713_DEVICE_ID 0x01
661 +#define TAS5713_ERROR_STATUS 0x02
662 +#define TAS5713_SYSTEM_CTRL1 0x03
663 +#define TAS5713_SERIAL_DATA_INTERFACE 0x04
664 +#define TAS5713_SYSTEM_CTRL2 0x05
665 +#define TAS5713_SOFT_MUTE 0x06
666 +#define TAS5713_VOL_MASTER 0x07
667 +#define TAS5713_VOL_CH1 0x08
668 +#define TAS5713_VOL_CH2 0x09
669 +#define TAS5713_VOL_HEADPHONE 0x0A
670 +#define TAS5713_VOL_CONFIG 0x0E
671 +#define TAS5713_MODULATION_LIMIT 0x10
672 +#define TAS5713_IC_DLY_CH1 0x11
673 +#define TAS5713_IC_DLY_CH2 0x12
674 +#define TAS5713_IC_DLY_CH3 0x13
675 +#define TAS5713_IC_DLY_CH4 0x14
676 +
677 +#define TAS5713_START_STOP_PERIOD 0x1A
678 +#define TAS5713_OSC_TRIM 0x1B
679 +#define TAS5713_BKND_ERR 0x1C
680 +
681 +#define TAS5713_INPUT_MUX 0x20
682 +#define TAS5713_SRC_SELECT_CH4 0x21
683 +#define TAS5713_PWM_MUX 0x25
684 +
685 +#define TAS5713_CH1_BQ0 0x29
686 +#define TAS5713_CH1_BQ1 0x2A
687 +#define TAS5713_CH1_BQ2 0x2B
688 +#define TAS5713_CH1_BQ3 0x2C
689 +#define TAS5713_CH1_BQ4 0x2D
690 +#define TAS5713_CH1_BQ5 0x2E
691 +#define TAS5713_CH1_BQ6 0x2F
692 +#define TAS5713_CH1_BQ7 0x58
693 +#define TAS5713_CH1_BQ8 0x59
694 +
695 +#define TAS5713_CH2_BQ0 0x30
696 +#define TAS5713_CH2_BQ1 0x31
697 +#define TAS5713_CH2_BQ2 0x32
698 +#define TAS5713_CH2_BQ3 0x33
699 +#define TAS5713_CH2_BQ4 0x34
700 +#define TAS5713_CH2_BQ5 0x35
701 +#define TAS5713_CH2_BQ6 0x36
702 +#define TAS5713_CH2_BQ7 0x5C
703 +#define TAS5713_CH2_BQ8 0x5D
704 +
705 +#define TAS5713_CH4_BQ0 0x5A
706 +#define TAS5713_CH4_BQ1 0x5B
707 +#define TAS5713_CH3_BQ0 0x5E
708 +#define TAS5713_CH3_BQ1 0x5F
709 +
710 +#define TAS5713_DRC1_SOFTENING_FILTER_ALPHA_OMEGA 0x3B
711 +#define TAS5713_DRC1_ATTACK_RELEASE_RATE 0x3C
712 +#define TAS5713_DRC2_SOFTENING_FILTER_ALPHA_OMEGA 0x3E
713 +#define TAS5713_DRC2_ATTACK_RELEASE_RATE 0x3F
714 +#define TAS5713_DRC1_ATTACK_RELEASE_THRES 0x40
715 +#define TAS5713_DRC2_ATTACK_RELEASE_THRES 0x43
716 +#define TAS5713_DRC_CTRL 0x46
717 +
718 +#define TAS5713_BANK_SW_CTRL 0x50
719 +#define TAS5713_CH1_OUTPUT_MIXER 0x51
720 +#define TAS5713_CH2_OUTPUT_MIXER 0x52
721 +#define TAS5713_CH1_INPUT_MIXER 0x53
722 +#define TAS5713_CH2_INPUT_MIXER 0x54
723 +#define TAS5713_OUTPUT_POST_SCALE 0x56
724 +#define TAS5713_OUTPUT_PRESCALE 0x57
725 +
726 +#define TAS5713_IDF_POST_SCALE 0x62
727 +
728 +#define TAS5713_CH1_INLINE_MIXER 0x70
729 +#define TAS5713_CH1_INLINE_DRC_EN_MIXER 0x71
730 +#define TAS5713_CH1_R_CHANNEL_MIXER 0x72
731 +#define TAS5713_CH1_L_CHANNEL_MIXER 0x73
732 +#define TAS5713_CH2_INLINE_MIXER 0x74
733 +#define TAS5713_CH2_INLINE_DRC_EN_MIXER 0x75
734 +#define TAS5713_CH2_L_CHANNEL_MIXER 0x76
735 +#define TAS5713_CH2_R_CHANNEL_MIXER 0x77
736 +
737 +#define TAS5713_UPDATE_DEV_ADDR_KEY 0xF8
738 +#define TAS5713_UPDATE_DEV_ADDR_REG 0xF9
739 +
740 +#define TAS5713_REGISTER_COUNT 0x46
741 +#define TAS5713_MAX_REGISTER 0xF9
742 +
743 +
744 +// Bitmasks for registers
745 +#define TAS5713_SOFT_MUTE_ALL 0x07
746 +
747 +
748 +
749 +struct tas5713_init_command {
750 + const int size;
751 + const char *const data;
752 +};
753 +
754 +static const struct tas5713_init_command tas5713_init_sequence[] = {
755 +
756 + // Trim oscillator
757 + { .size = 2, .data = "\x1B\x00" },
758 + // System control register 1 (0x03): block DC
759 + { .size = 2, .data = "\x03\x80" },
760 + // Mute everything
761 + { .size = 2, .data = "\x05\x40" },
762 + // Modulation limit register (0x10): 97.7%
763 + { .size = 2, .data = "\x10\x02" },
764 + // Interchannel delay registers
765 + // (0x11, 0x12, 0x13, and 0x14): BD mode
766 + { .size = 2, .data = "\x11\xB8" },
767 + { .size = 2, .data = "\x12\x60" },
768 + { .size = 2, .data = "\x13\xA0" },
769 + { .size = 2, .data = "\x14\x48" },
770 + // PWM shutdown group register (0x19): no shutdown
771 + { .size = 2, .data = "\x19\x00" },
772 + // Input multiplexer register (0x20): BD mode
773 + { .size = 2, .data = "\x20\x00\x89\x77\x72" },
774 + // PWM output mux register (0x25)
775 + // Channel 1 --> OUTA, channel 1 neg --> OUTB
776 + // Channel 2 --> OUTC, channel 2 neg --> OUTD
777 + { .size = 5, .data = "\x25\x01\x02\x13\x45" },
778 + // DRC control (0x46): DRC off
779 + { .size = 5, .data = "\x46\x00\x00\x00\x00" },
780 + // BKND_ERR register (0x1C): 299ms reset period
781 + { .size = 2, .data = "\x1C\x07" },
782 + // Mute channel 3
783 + { .size = 2, .data = "\x0A\xFF" },
784 + // Volume configuration register (0x0E): volume slew 512 steps
785 + { .size = 2, .data = "\x0E\x90" },
786 + // Clock control register (0x00): 44/48kHz, MCLK=64xfs
787 + { .size = 2, .data = "\x00\x60" },
788 + // Bank switch and eq control (0x50): no bank switching
789 + { .size = 5, .data = "\x50\x00\x00\x00\x00" },
790 + // Volume registers (0x07, 0x08, 0x09, 0x0A)
791 + { .size = 2, .data = "\x07\x20" },
792 + { .size = 2, .data = "\x08\x30" },
793 + { .size = 2, .data = "\x09\x30" },
794 + { .size = 2, .data = "\x0A\xFF" },
795 + // 0x72, 0x73, 0x76, 0x77 input mixer:
796 + // no intermix between channels
797 + { .size = 5, .data = "\x72\x00\x00\x00\x00" },
798 + { .size = 5, .data = "\x73\x00\x80\x00\x00" },
799 + { .size = 5, .data = "\x76\x00\x00\x00\x00" },
800 + { .size = 5, .data = "\x77\x00\x80\x00\x00" },
801 + // 0x70, 0x71, 0x74, 0x75 inline DRC mixer:
802 + // no inline DRC inmix
803 + { .size = 5, .data = "\x70\x00\x80\x00\x00" },
804 + { .size = 5, .data = "\x71\x00\x00\x00\x00" },
805 + { .size = 5, .data = "\x74\x00\x80\x00\x00" },
806 + { .size = 5, .data = "\x75\x00\x00\x00\x00" },
807 + // 0x56, 0x57 Output scale
808 + { .size = 5, .data = "\x56\x00\x80\x00\x00" },
809 + { .size = 5, .data = "\x57\x00\x02\x00\x00" },
810 + // 0x3B, 0x3c
811 + { .size = 9, .data = "\x3B\x00\x08\x00\x00\x00\x78\x00\x00" },
812 + { .size = 9, .data = "\x3C\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
813 + { .size = 9, .data = "\x3E\x00\x08\x00\x00\x00\x78\x00\x00" },
814 + { .size = 9, .data = "\x3F\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
815 + { .size = 9, .data = "\x40\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
816 + { .size = 9, .data = "\x43\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
817 + // 0x51, 0x52: output mixer
818 + { .size = 9, .data = "\x51\x00\x80\x00\x00\x00\x00\x00\x00" },
819 + { .size = 9, .data = "\x52\x00\x80\x00\x00\x00\x00\x00\x00" },
820 + // PEQ defaults
821 + { .size = 21, .data = "\x29\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
822 + { .size = 21, .data = "\x2A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
823 + { .size = 21, .data = "\x2B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
824 + { .size = 21, .data = "\x2C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
825 + { .size = 21, .data = "\x2D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
826 + { .size = 21, .data = "\x2E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
827 + { .size = 21, .data = "\x2F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
828 + { .size = 21, .data = "\x30\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
829 + { .size = 21, .data = "\x31\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
830 + { .size = 21, .data = "\x32\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
831 + { .size = 21, .data = "\x33\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
832 + { .size = 21, .data = "\x34\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
833 + { .size = 21, .data = "\x35\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
834 + { .size = 21, .data = "\x36\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
835 + { .size = 21, .data = "\x58\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
836 + { .size = 21, .data = "\x59\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
837 + { .size = 21, .data = "\x5C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
838 + { .size = 21, .data = "\x5D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
839 + { .size = 21, .data = "\x5E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
840 + { .size = 21, .data = "\x5F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
841 + { .size = 21, .data = "\x5A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
842 + { .size = 21, .data = "\x5B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
843 +};
844 +
845 +
846 +#endif /* _TAS5713_H */
847 --
848 1.8.3.2
849
OpenWrt Source Repository