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1 From 0f11b0757d5950ee7a8ba00e49ebefd2c649a6ba 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] 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 TAS5713: return error if initialisation fails
10
11 Existing TAS5713 driver logs errors during initialisation, but does not return
12 an error code. Therefore even if initialisation fails, the driver will still be
13 loaded, but won't work. This patch fixes this. I2C communication error will now
14 reported correctly by a non-zero return code.
15
16 HiFiBerry Amp: fix device-tree problems
17
18 Some code to load the driver based on device-tree-overlays was missing. This is added by this patch.
19
20 hifiberry-amp: Adjust for ALSA object refactoring
21
22 See: https://github.com/raspberrypi/linux/issues/1775
23 ---
24 sound/soc/bcm/Kconfig | 7 +
25 sound/soc/bcm/Makefile | 2 +
26 sound/soc/bcm/hifiberry_amp.c | 129 +++++++++++++++
27 sound/soc/codecs/Kconfig | 4 +
28 sound/soc/codecs/Makefile | 2 +
29 sound/soc/codecs/tas5713.c | 371 ++++++++++++++++++++++++++++++++++++++++++
30 sound/soc/codecs/tas5713.h | 210 ++++++++++++++++++++++++
31 7 files changed, 725 insertions(+)
32 create mode 100644 sound/soc/bcm/hifiberry_amp.c
33 create mode 100644 sound/soc/codecs/tas5713.c
34 create mode 100644 sound/soc/codecs/tas5713.h
35
36 --- a/sound/soc/bcm/Kconfig
37 +++ b/sound/soc/bcm/Kconfig
38 @@ -38,6 +38,13 @@ config SND_BCM2708_SOC_HIFIBERRY_DIGI
39 help
40 Say Y or M if you want to add support for HifiBerry Digi S/PDIF output board.
41
42 +config SND_BCM2708_SOC_HIFIBERRY_AMP
43 + tristate "Support for the HifiBerry Amp"
44 + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
45 + select SND_SOC_TAS5713
46 + help
47 + Say Y or M if you want to add support for the HifiBerry Amp amplifier board.
48 +
49 config SND_BCM2708_SOC_RPI_DAC
50 tristate "Support for RPi-DAC"
51 depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
52 --- a/sound/soc/bcm/Makefile
53 +++ b/sound/soc/bcm/Makefile
54 @@ -9,12 +9,14 @@ snd-soc-cygnus-objs := cygnus-pcm.o cygn
55 obj-$(CONFIG_SND_SOC_CYGNUS) += snd-soc-cygnus.o
56
57 # BCM2708 Machine Support
58 +snd-soc-hifiberry-amp-objs := hifiberry_amp.o
59 snd-soc-hifiberry-dac-objs := hifiberry_dac.o
60 snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o
61 snd-soc-hifiberry-digi-objs := hifiberry_digi.o
62 snd-soc-rpi-dac-objs := rpi-dac.o
63 snd-soc-iqaudio-dac-objs := iqaudio-dac.o
64
65 +obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o
66 obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC) += snd-soc-hifiberry-dac.o
67 obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
68 obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o
69 --- /dev/null
70 +++ b/sound/soc/bcm/hifiberry_amp.c
71 @@ -0,0 +1,129 @@
72 +/*
73 + * ASoC Driver for HifiBerry AMP
74 + *
75 + * Author: Sebastian Eickhoff <basti.eickhoff@googlemail.com>
76 + * Copyright 2014
77 + *
78 + * This program is free software; you can redistribute it and/or
79 + * modify it under the terms of the GNU General Public License
80 + * version 2 as published by the Free Software Foundation.
81 + *
82 + * This program is distributed in the hope that it will be useful, but
83 + * WITHOUT ANY WARRANTY; without even the implied warranty of
84 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
85 + * General Public License for more details.
86 + */
87 +
88 +#include <linux/module.h>
89 +#include <linux/platform_device.h>
90 +
91 +#include <sound/core.h>
92 +#include <sound/pcm.h>
93 +#include <sound/pcm_params.h>
94 +#include <sound/soc.h>
95 +#include <sound/jack.h>
96 +
97 +static int snd_rpi_hifiberry_amp_init(struct snd_soc_pcm_runtime *rtd)
98 +{
99 + // ToDo: init of the dsp-registers.
100 + return 0;
101 +}
102 +
103 +static int snd_rpi_hifiberry_amp_hw_params( struct snd_pcm_substream *substream,
104 + struct snd_pcm_hw_params *params )
105 +{
106 + struct snd_soc_pcm_runtime *rtd = substream->private_data;
107 + struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
108 +
109 + return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
110 +}
111 +
112 +static struct snd_soc_ops snd_rpi_hifiberry_amp_ops = {
113 + .hw_params = snd_rpi_hifiberry_amp_hw_params,
114 +};
115 +
116 +static struct snd_soc_dai_link snd_rpi_hifiberry_amp_dai[] = {
117 + {
118 + .name = "HifiBerry AMP",
119 + .stream_name = "HifiBerry AMP HiFi",
120 + .cpu_dai_name = "bcm2708-i2s.0",
121 + .codec_dai_name = "tas5713-hifi",
122 + .platform_name = "bcm2708-i2s.0",
123 + .codec_name = "tas5713.1-001b",
124 + .dai_fmt = SND_SOC_DAIFMT_I2S |
125 + SND_SOC_DAIFMT_NB_NF |
126 + SND_SOC_DAIFMT_CBS_CFS,
127 + .ops = &snd_rpi_hifiberry_amp_ops,
128 + .init = snd_rpi_hifiberry_amp_init,
129 + },
130 +};
131 +
132 +
133 +static struct snd_soc_card snd_rpi_hifiberry_amp = {
134 + .name = "snd_rpi_hifiberry_amp",
135 + .driver_name = "HifiberryAmp",
136 + .owner = THIS_MODULE,
137 + .dai_link = snd_rpi_hifiberry_amp_dai,
138 + .num_links = ARRAY_SIZE(snd_rpi_hifiberry_amp_dai),
139 +};
140 +
141 +static const struct of_device_id snd_rpi_hifiberry_amp_of_match[] = {
142 + { .compatible = "hifiberry,hifiberry-amp", },
143 + {},
144 +};
145 +MODULE_DEVICE_TABLE(of, snd_rpi_hifiberry_amp_of_match);
146 +
147 +
148 +static int snd_rpi_hifiberry_amp_probe(struct platform_device *pdev)
149 +{
150 + int ret = 0;
151 +
152 + snd_rpi_hifiberry_amp.dev = &pdev->dev;
153 +
154 + if (pdev->dev.of_node) {
155 + struct device_node *i2s_node;
156 + struct snd_soc_dai_link *dai = &snd_rpi_hifiberry_amp_dai[0];
157 + i2s_node = of_parse_phandle(pdev->dev.of_node,
158 + "i2s-controller", 0);
159 +
160 + if (i2s_node) {
161 + dai->cpu_dai_name = NULL;
162 + dai->cpu_of_node = i2s_node;
163 + dai->platform_name = NULL;
164 + dai->platform_of_node = i2s_node;
165 + }
166 + }
167 +
168 + ret = snd_soc_register_card(&snd_rpi_hifiberry_amp);
169 +
170 + if (ret != 0) {
171 + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
172 + }
173 +
174 + return ret;
175 +}
176 +
177 +
178 +static int snd_rpi_hifiberry_amp_remove(struct platform_device *pdev)
179 +{
180 + return snd_soc_unregister_card(&snd_rpi_hifiberry_amp);
181 +}
182 +
183 +
184 +static struct platform_driver snd_rpi_hifiberry_amp_driver = {
185 + .driver = {
186 + .name = "snd-hifiberry-amp",
187 + .owner = THIS_MODULE,
188 + .of_match_table = snd_rpi_hifiberry_amp_of_match,
189 + },
190 + .probe = snd_rpi_hifiberry_amp_probe,
191 + .remove = snd_rpi_hifiberry_amp_remove,
192 +};
193 +
194 +
195 +module_platform_driver(snd_rpi_hifiberry_amp_driver);
196 +
197 +
198 +MODULE_AUTHOR("Sebastian Eickhoff <basti.eickhoff@googlemail.com>");
199 +MODULE_DESCRIPTION("ASoC driver for HiFiBerry-AMP");
200 +MODULE_LICENSE("GPL v2");
201 --- a/sound/soc/codecs/Kconfig
202 +++ b/sound/soc/codecs/Kconfig
203 @@ -139,6 +139,7 @@ config SND_SOC_ALL_CODECS
204 select SND_SOC_TFA9879 if I2C
205 select SND_SOC_TLV320AIC23_I2C if I2C
206 select SND_SOC_TLV320AIC23_SPI if SPI_MASTER
207 + select SND_SOC_TAS5713 if I2C
208 select SND_SOC_TLV320AIC26 if SPI_MASTER
209 select SND_SOC_TLV320AIC31XX if I2C
210 select SND_SOC_TLV320AIC32X4_I2C if I2C
211 @@ -821,6 +822,9 @@ config SND_SOC_TFA9879
212 tristate "NXP Semiconductors TFA9879 amplifier"
213 depends on I2C
214
215 +config SND_SOC_TAS5713
216 + tristate
217 +
218 config SND_SOC_TLV320AIC23
219 tristate
220
221 --- a/sound/soc/codecs/Makefile
222 +++ b/sound/soc/codecs/Makefile
223 @@ -144,6 +144,7 @@ snd-soc-tas5086-objs := tas5086.o
224 snd-soc-tas571x-objs := tas571x.o
225 snd-soc-tas5720-objs := tas5720.o
226 snd-soc-tfa9879-objs := tfa9879.o
227 +snd-soc-tas5713-objs := tas5713.o
228 snd-soc-tlv320aic23-objs := tlv320aic23.o
229 snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o
230 snd-soc-tlv320aic23-spi-objs := tlv320aic23-spi.o
231 @@ -366,6 +367,7 @@ obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc
232 obj-$(CONFIG_SND_SOC_TAS571X) += snd-soc-tas571x.o
233 obj-$(CONFIG_SND_SOC_TAS5720) += snd-soc-tas5720.o
234 obj-$(CONFIG_SND_SOC_TFA9879) += snd-soc-tfa9879.o
235 +obj-$(CONFIG_SND_SOC_TAS5713) += snd-soc-tas5713.o
236 obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o
237 obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C) += snd-soc-tlv320aic23-i2c.o
238 obj-$(CONFIG_SND_SOC_TLV320AIC23_SPI) += snd-soc-tlv320aic23-spi.o
239 --- /dev/null
240 +++ b/sound/soc/codecs/tas5713.c
241 @@ -0,0 +1,371 @@
242 +/*
243 + * ASoC Driver for TAS5713
244 + *
245 + * Author: Sebastian Eickhoff <basti.eickhoff@googlemail.com>
246 + * Copyright 2014
247 + *
248 + * This program is free software; you can redistribute it and/or
249 + * modify it under the terms of the GNU General Public License
250 + * version 2 as published by the Free Software Foundation.
251 + *
252 + * This program is distributed in the hope that it will be useful, but
253 + * WITHOUT ANY WARRANTY; without even the implied warranty of
254 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
255 + * General Public License for more details.
256 + */
257 +
258 +#include <linux/module.h>
259 +#include <linux/moduleparam.h>
260 +#include <linux/init.h>
261 +#include <linux/delay.h>
262 +#include <linux/pm.h>
263 +#include <linux/i2c.h>
264 +#include <linux/of_device.h>
265 +#include <linux/spi/spi.h>
266 +#include <linux/regmap.h>
267 +#include <linux/regulator/consumer.h>
268 +#include <linux/slab.h>
269 +#include <sound/core.h>
270 +#include <sound/pcm.h>
271 +#include <sound/pcm_params.h>
272 +#include <sound/soc.h>
273 +#include <sound/initval.h>
274 +#include <sound/tlv.h>
275 +
276 +#include <linux/kernel.h>
277 +#include <linux/string.h>
278 +#include <linux/fs.h>
279 +#include <asm/uaccess.h>
280 +
281 +#include "tas5713.h"
282 +
283 +
284 +static struct i2c_client *i2c;
285 +
286 +struct tas5713_priv {
287 + struct regmap *regmap;
288 + int mclk_div;
289 + struct snd_soc_codec *codec;
290 +};
291 +
292 +static struct tas5713_priv *priv_data;
293 +
294 +
295 +
296 +
297 +/*
298 + * _ _ ___ _ ___ _ _
299 + * /_\ | | / __| /_\ / __|___ _ _| |_ _ _ ___| |___
300 + * / _ \| |__\__ \/ _ \ | (__/ _ \ ' \ _| '_/ _ \ (_-<
301 + * /_/ \_\____|___/_/ \_\ \___\___/_||_\__|_| \___/_/__/
302 + *
303 + */
304 +
305 +static const DECLARE_TLV_DB_SCALE(tas5713_vol_tlv, -10000, 50, 1);
306 +
307 +
308 +static const struct snd_kcontrol_new tas5713_snd_controls[] = {
309 + SOC_SINGLE_TLV ("Master" , TAS5713_VOL_MASTER, 0, 248, 1, tas5713_vol_tlv),
310 + SOC_DOUBLE_R_TLV("Channels" , TAS5713_VOL_CH1, TAS5713_VOL_CH2, 0, 248, 1, tas5713_vol_tlv)
311 +};
312 +
313 +
314 +
315 +
316 +/*
317 + * __ __ _ _ ___ _
318 + * | \/ |__ _ __| |_ (_)_ _ ___ | \ _ _(_)_ _____ _ _
319 + * | |\/| / _` / _| ' \| | ' \/ -_) | |) | '_| \ V / -_) '_|
320 + * |_| |_\__,_\__|_||_|_|_||_\___| |___/|_| |_|\_/\___|_|
321 + *
322 + */
323 +
324 +static int tas5713_hw_params(struct snd_pcm_substream *substream,
325 + struct snd_pcm_hw_params *params,
326 + struct snd_soc_dai *dai)
327 +{
328 + u16 blen = 0x00;
329 +
330 + struct snd_soc_codec *codec;
331 + codec = dai->codec;
332 + priv_data->codec = dai->codec;
333 +
334 + switch (params_format(params)) {
335 + case SNDRV_PCM_FORMAT_S16_LE:
336 + blen = 0x03;
337 + break;
338 + case SNDRV_PCM_FORMAT_S20_3LE:
339 + blen = 0x1;
340 + break;
341 + case SNDRV_PCM_FORMAT_S24_LE:
342 + blen = 0x04;
343 + break;
344 + case SNDRV_PCM_FORMAT_S32_LE:
345 + blen = 0x05;
346 + break;
347 + default:
348 + dev_err(dai->dev, "Unsupported word length: %u\n",
349 + params_format(params));
350 + return -EINVAL;
351 + }
352 +
353 + // set word length
354 + snd_soc_update_bits(codec, TAS5713_SERIAL_DATA_INTERFACE, 0x7, blen);
355 +
356 + return 0;
357 +}
358 +
359 +
360 +static int tas5713_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
361 +{
362 + unsigned int val = 0;
363 +
364 + struct tas5713_priv *tas5713;
365 + struct snd_soc_codec *codec = dai->codec;
366 + tas5713 = snd_soc_codec_get_drvdata(codec);
367 +
368 + if (mute) {
369 + val = TAS5713_SOFT_MUTE_ALL;
370 + }
371 +
372 + return regmap_write(tas5713->regmap, TAS5713_SOFT_MUTE, val);
373 +}
374 +
375 +
376 +static const struct snd_soc_dai_ops tas5713_dai_ops = {
377 + .hw_params = tas5713_hw_params,
378 + .mute_stream = tas5713_mute_stream,
379 +};
380 +
381 +
382 +static struct snd_soc_dai_driver tas5713_dai = {
383 + .name = "tas5713-hifi",
384 + .playback = {
385 + .stream_name = "Playback",
386 + .channels_min = 2,
387 + .channels_max = 2,
388 + .rates = SNDRV_PCM_RATE_8000_48000,
389 + .formats = (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE ),
390 + },
391 + .ops = &tas5713_dai_ops,
392 +};
393 +
394 +
395 +
396 +
397 +/*
398 + * ___ _ ___ _
399 + * / __|___ __| |___ __ | \ _ _(_)_ _____ _ _
400 + * | (__/ _ \/ _` / -_) _| | |) | '_| \ V / -_) '_|
401 + * \___\___/\__,_\___\__| |___/|_| |_|\_/\___|_|
402 + *
403 + */
404 +
405 +static int tas5713_remove(struct snd_soc_codec *codec)
406 +{
407 + struct tas5713_priv *tas5713;
408 +
409 + tas5713 = snd_soc_codec_get_drvdata(codec);
410 +
411 + return 0;
412 +}
413 +
414 +
415 +static int tas5713_probe(struct snd_soc_codec *codec)
416 +{
417 + struct tas5713_priv *tas5713;
418 + int i, ret;
419 +
420 + i2c = container_of(codec->dev, struct i2c_client, dev);
421 +
422 + tas5713 = snd_soc_codec_get_drvdata(codec);
423 +
424 + // Reset error
425 + ret = snd_soc_write(codec, TAS5713_ERROR_STATUS, 0x00);
426 + if (ret < 0) return ret;
427 +
428 + // Trim oscillator
429 + ret = snd_soc_write(codec, TAS5713_OSC_TRIM, 0x00);
430 + if (ret < 0) return ret;
431 + msleep(1000);
432 +
433 + // Reset error
434 + ret = snd_soc_write(codec, TAS5713_ERROR_STATUS, 0x00);
435 + if (ret < 0) return ret;
436 +
437 + // Clock mode: 44/48kHz, MCLK=64xfs
438 + ret = snd_soc_write(codec, TAS5713_CLOCK_CTRL, 0x60);
439 + if (ret < 0) return ret;
440 +
441 + // I2S 24bit
442 + ret = snd_soc_write(codec, TAS5713_SERIAL_DATA_INTERFACE, 0x05);
443 + if (ret < 0) return ret;
444 +
445 + // Unmute
446 + ret = snd_soc_write(codec, TAS5713_SYSTEM_CTRL2, 0x00);
447 + if (ret < 0) return ret;
448 + ret = snd_soc_write(codec, TAS5713_SOFT_MUTE, 0x00);
449 + if (ret < 0) return ret;
450 +
451 + // Set volume to 0db
452 + ret = snd_soc_write(codec, TAS5713_VOL_MASTER, 0x00);
453 + if (ret < 0) return ret;
454 +
455 + // Now start programming the default initialization sequence
456 + for (i = 0; i < ARRAY_SIZE(tas5713_init_sequence); ++i) {
457 + ret = i2c_master_send(i2c,
458 + tas5713_init_sequence[i].data,
459 + tas5713_init_sequence[i].size);
460 + if (ret < 0) {
461 + printk(KERN_INFO "TAS5713 CODEC PROBE: InitSeq returns: %d\n", ret);
462 + }
463 + }
464 +
465 + // Unmute
466 + ret = snd_soc_write(codec, TAS5713_SYSTEM_CTRL2, 0x00);
467 + if (ret < 0) return ret;
468 +
469 + return 0;
470 +}
471 +
472 +
473 +static struct snd_soc_codec_driver soc_codec_dev_tas5713 = {
474 + .probe = tas5713_probe,
475 + .remove = tas5713_remove,
476 + .component_driver = {
477 + .controls = tas5713_snd_controls,
478 + .num_controls = ARRAY_SIZE(tas5713_snd_controls),
479 + },
480 +};
481 +
482 +
483 +
484 +
485 +/*
486 + * ___ ___ ___ ___ _
487 + * |_ _|_ ) __| | \ _ _(_)_ _____ _ _
488 + * | | / / (__ | |) | '_| \ V / -_) '_|
489 + * |___/___\___| |___/|_| |_|\_/\___|_|
490 + *
491 + */
492 +
493 +static const struct reg_default tas5713_reg_defaults[] = {
494 + { 0x07 ,0x80 }, // R7 - VOL_MASTER - -40dB
495 + { 0x08 , 30 }, // R8 - VOL_CH1 - 0dB
496 + { 0x09 , 30 }, // R9 - VOL_CH2 - 0dB
497 + { 0x0A ,0x80 }, // R10 - VOL_HEADPHONE - -40dB
498 +};
499 +
500 +
501 +static bool tas5713_reg_volatile(struct device *dev, unsigned int reg)
502 +{
503 + switch (reg) {
504 + case TAS5713_DEVICE_ID:
505 + case TAS5713_ERROR_STATUS:
506 + return true;
507 + default:
508 + return false;
509 + }
510 +}
511 +
512 +
513 +static const struct of_device_id tas5713_of_match[] = {
514 + { .compatible = "ti,tas5713", },
515 + { }
516 +};
517 +MODULE_DEVICE_TABLE(of, tas5713_of_match);
518 +
519 +
520 +static struct regmap_config tas5713_regmap_config = {
521 + .reg_bits = 8,
522 + .val_bits = 8,
523 +
524 + .max_register = TAS5713_MAX_REGISTER,
525 + .volatile_reg = tas5713_reg_volatile,
526 +
527 + .cache_type = REGCACHE_RBTREE,
528 + .reg_defaults = tas5713_reg_defaults,
529 + .num_reg_defaults = ARRAY_SIZE(tas5713_reg_defaults),
530 +};
531 +
532 +
533 +static int tas5713_i2c_probe(struct i2c_client *i2c,
534 + const struct i2c_device_id *id)
535 +{
536 + int ret;
537 +
538 + priv_data = devm_kzalloc(&i2c->dev, sizeof *priv_data, GFP_KERNEL);
539 + if (!priv_data)
540 + return -ENOMEM;
541 +
542 + priv_data->regmap = devm_regmap_init_i2c(i2c, &tas5713_regmap_config);
543 + if (IS_ERR(priv_data->regmap)) {
544 + ret = PTR_ERR(priv_data->regmap);
545 + return ret;
546 + }
547 +
548 + i2c_set_clientdata(i2c, priv_data);
549 +
550 + ret = snd_soc_register_codec(&i2c->dev,
551 + &soc_codec_dev_tas5713, &tas5713_dai, 1);
552 +
553 + return ret;
554 +}
555 +
556 +
557 +static int tas5713_i2c_remove(struct i2c_client *i2c)
558 +{
559 + snd_soc_unregister_codec(&i2c->dev);
560 + i2c_set_clientdata(i2c, NULL);
561 +
562 + kfree(priv_data);
563 +
564 + return 0;
565 +}
566 +
567 +
568 +static const struct i2c_device_id tas5713_i2c_id[] = {
569 + { "tas5713", 0 },
570 + { }
571 +};
572 +
573 +MODULE_DEVICE_TABLE(i2c, tas5713_i2c_id);
574 +
575 +
576 +static struct i2c_driver tas5713_i2c_driver = {
577 + .driver = {
578 + .name = "tas5713",
579 + .owner = THIS_MODULE,
580 + .of_match_table = tas5713_of_match,
581 + },
582 + .probe = tas5713_i2c_probe,
583 + .remove = tas5713_i2c_remove,
584 + .id_table = tas5713_i2c_id
585 +};
586 +
587 +
588 +static int __init tas5713_modinit(void)
589 +{
590 + int ret = 0;
591 +
592 + ret = i2c_add_driver(&tas5713_i2c_driver);
593 + if (ret) {
594 + printk(KERN_ERR "Failed to register tas5713 I2C driver: %d\n",
595 + ret);
596 + }
597 +
598 + return ret;
599 +}
600 +module_init(tas5713_modinit);
601 +
602 +
603 +static void __exit tas5713_exit(void)
604 +{
605 + i2c_del_driver(&tas5713_i2c_driver);
606 +}
607 +module_exit(tas5713_exit);
608 +
609 +
610 +MODULE_AUTHOR("Sebastian Eickhoff <basti.eickhoff@googlemail.com>");
611 +MODULE_DESCRIPTION("ASoC driver for TAS5713");
612 +MODULE_LICENSE("GPL v2");
613 --- /dev/null
614 +++ b/sound/soc/codecs/tas5713.h
615 @@ -0,0 +1,210 @@
616 +/*
617 + * ASoC Driver for TAS5713
618 + *
619 + * Author: Sebastian Eickhoff <basti.eickhoff@googlemail.com>
620 + * Copyright 2014
621 + *
622 + * This program is free software; you can redistribute it and/or
623 + * modify it under the terms of the GNU General Public License
624 + * version 2 as published by the Free Software Foundation.
625 + *
626 + * This program is distributed in the hope that it will be useful, but
627 + * WITHOUT ANY WARRANTY; without even the implied warranty of
628 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
629 + * General Public License for more details.
630 + */
631 +
632 +#ifndef _TAS5713_H
633 +#define _TAS5713_H
634 +
635 +
636 +// TAS5713 I2C-bus register addresses
637 +
638 +#define TAS5713_CLOCK_CTRL 0x00
639 +#define TAS5713_DEVICE_ID 0x01
640 +#define TAS5713_ERROR_STATUS 0x02
641 +#define TAS5713_SYSTEM_CTRL1 0x03
642 +#define TAS5713_SERIAL_DATA_INTERFACE 0x04
643 +#define TAS5713_SYSTEM_CTRL2 0x05
644 +#define TAS5713_SOFT_MUTE 0x06
645 +#define TAS5713_VOL_MASTER 0x07
646 +#define TAS5713_VOL_CH1 0x08
647 +#define TAS5713_VOL_CH2 0x09
648 +#define TAS5713_VOL_HEADPHONE 0x0A
649 +#define TAS5713_VOL_CONFIG 0x0E
650 +#define TAS5713_MODULATION_LIMIT 0x10
651 +#define TAS5713_IC_DLY_CH1 0x11
652 +#define TAS5713_IC_DLY_CH2 0x12
653 +#define TAS5713_IC_DLY_CH3 0x13
654 +#define TAS5713_IC_DLY_CH4 0x14
655 +
656 +#define TAS5713_START_STOP_PERIOD 0x1A
657 +#define TAS5713_OSC_TRIM 0x1B
658 +#define TAS5713_BKND_ERR 0x1C
659 +
660 +#define TAS5713_INPUT_MUX 0x20
661 +#define TAS5713_SRC_SELECT_CH4 0x21
662 +#define TAS5713_PWM_MUX 0x25
663 +
664 +#define TAS5713_CH1_BQ0 0x29
665 +#define TAS5713_CH1_BQ1 0x2A
666 +#define TAS5713_CH1_BQ2 0x2B
667 +#define TAS5713_CH1_BQ3 0x2C
668 +#define TAS5713_CH1_BQ4 0x2D
669 +#define TAS5713_CH1_BQ5 0x2E
670 +#define TAS5713_CH1_BQ6 0x2F
671 +#define TAS5713_CH1_BQ7 0x58
672 +#define TAS5713_CH1_BQ8 0x59
673 +
674 +#define TAS5713_CH2_BQ0 0x30
675 +#define TAS5713_CH2_BQ1 0x31
676 +#define TAS5713_CH2_BQ2 0x32
677 +#define TAS5713_CH2_BQ3 0x33
678 +#define TAS5713_CH2_BQ4 0x34
679 +#define TAS5713_CH2_BQ5 0x35
680 +#define TAS5713_CH2_BQ6 0x36
681 +#define TAS5713_CH2_BQ7 0x5C
682 +#define TAS5713_CH2_BQ8 0x5D
683 +
684 +#define TAS5713_CH4_BQ0 0x5A
685 +#define TAS5713_CH4_BQ1 0x5B
686 +#define TAS5713_CH3_BQ0 0x5E
687 +#define TAS5713_CH3_BQ1 0x5F
688 +
689 +#define TAS5713_DRC1_SOFTENING_FILTER_ALPHA_OMEGA 0x3B
690 +#define TAS5713_DRC1_ATTACK_RELEASE_RATE 0x3C
691 +#define TAS5713_DRC2_SOFTENING_FILTER_ALPHA_OMEGA 0x3E
692 +#define TAS5713_DRC2_ATTACK_RELEASE_RATE 0x3F
693 +#define TAS5713_DRC1_ATTACK_RELEASE_THRES 0x40
694 +#define TAS5713_DRC2_ATTACK_RELEASE_THRES 0x43
695 +#define TAS5713_DRC_CTRL 0x46
696 +
697 +#define TAS5713_BANK_SW_CTRL 0x50
698 +#define TAS5713_CH1_OUTPUT_MIXER 0x51
699 +#define TAS5713_CH2_OUTPUT_MIXER 0x52
700 +#define TAS5713_CH1_INPUT_MIXER 0x53
701 +#define TAS5713_CH2_INPUT_MIXER 0x54
702 +#define TAS5713_OUTPUT_POST_SCALE 0x56
703 +#define TAS5713_OUTPUT_PRESCALE 0x57
704 +
705 +#define TAS5713_IDF_POST_SCALE 0x62
706 +
707 +#define TAS5713_CH1_INLINE_MIXER 0x70
708 +#define TAS5713_CH1_INLINE_DRC_EN_MIXER 0x71
709 +#define TAS5713_CH1_R_CHANNEL_MIXER 0x72
710 +#define TAS5713_CH1_L_CHANNEL_MIXER 0x73
711 +#define TAS5713_CH2_INLINE_MIXER 0x74
712 +#define TAS5713_CH2_INLINE_DRC_EN_MIXER 0x75
713 +#define TAS5713_CH2_L_CHANNEL_MIXER 0x76
714 +#define TAS5713_CH2_R_CHANNEL_MIXER 0x77
715 +
716 +#define TAS5713_UPDATE_DEV_ADDR_KEY 0xF8
717 +#define TAS5713_UPDATE_DEV_ADDR_REG 0xF9
718 +
719 +#define TAS5713_REGISTER_COUNT 0x46
720 +#define TAS5713_MAX_REGISTER 0xF9
721 +
722 +
723 +// Bitmasks for registers
724 +#define TAS5713_SOFT_MUTE_ALL 0x07
725 +
726 +
727 +
728 +struct tas5713_init_command {
729 + const int size;
730 + const char *const data;
731 +};
732 +
733 +static const struct tas5713_init_command tas5713_init_sequence[] = {
734 +
735 + // Trim oscillator
736 + { .size = 2, .data = "\x1B\x00" },
737 + // System control register 1 (0x03): block DC
738 + { .size = 2, .data = "\x03\x80" },
739 + // Mute everything
740 + { .size = 2, .data = "\x05\x40" },
741 + // Modulation limit register (0x10): 97.7%
742 + { .size = 2, .data = "\x10\x02" },
743 + // Interchannel delay registers
744 + // (0x11, 0x12, 0x13, and 0x14): BD mode
745 + { .size = 2, .data = "\x11\xB8" },
746 + { .size = 2, .data = "\x12\x60" },
747 + { .size = 2, .data = "\x13\xA0" },
748 + { .size = 2, .data = "\x14\x48" },
749 + // PWM shutdown group register (0x19): no shutdown
750 + { .size = 2, .data = "\x19\x00" },
751 + // Input multiplexer register (0x20): BD mode
752 + { .size = 2, .data = "\x20\x00\x89\x77\x72" },
753 + // PWM output mux register (0x25)
754 + // Channel 1 --> OUTA, channel 1 neg --> OUTB
755 + // Channel 2 --> OUTC, channel 2 neg --> OUTD
756 + { .size = 5, .data = "\x25\x01\x02\x13\x45" },
757 + // DRC control (0x46): DRC off
758 + { .size = 5, .data = "\x46\x00\x00\x00\x00" },
759 + // BKND_ERR register (0x1C): 299ms reset period
760 + { .size = 2, .data = "\x1C\x07" },
761 + // Mute channel 3
762 + { .size = 2, .data = "\x0A\xFF" },
763 + // Volume configuration register (0x0E): volume slew 512 steps
764 + { .size = 2, .data = "\x0E\x90" },
765 + // Clock control register (0x00): 44/48kHz, MCLK=64xfs
766 + { .size = 2, .data = "\x00\x60" },
767 + // Bank switch and eq control (0x50): no bank switching
768 + { .size = 5, .data = "\x50\x00\x00\x00\x00" },
769 + // Volume registers (0x07, 0x08, 0x09, 0x0A)
770 + { .size = 2, .data = "\x07\x20" },
771 + { .size = 2, .data = "\x08\x30" },
772 + { .size = 2, .data = "\x09\x30" },
773 + { .size = 2, .data = "\x0A\xFF" },
774 + // 0x72, 0x73, 0x76, 0x77 input mixer:
775 + // no intermix between channels
776 + { .size = 5, .data = "\x72\x00\x00\x00\x00" },
777 + { .size = 5, .data = "\x73\x00\x80\x00\x00" },
778 + { .size = 5, .data = "\x76\x00\x00\x00\x00" },
779 + { .size = 5, .data = "\x77\x00\x80\x00\x00" },
780 + // 0x70, 0x71, 0x74, 0x75 inline DRC mixer:
781 + // no inline DRC inmix
782 + { .size = 5, .data = "\x70\x00\x80\x00\x00" },
783 + { .size = 5, .data = "\x71\x00\x00\x00\x00" },
784 + { .size = 5, .data = "\x74\x00\x80\x00\x00" },
785 + { .size = 5, .data = "\x75\x00\x00\x00\x00" },
786 + // 0x56, 0x57 Output scale
787 + { .size = 5, .data = "\x56\x00\x80\x00\x00" },
788 + { .size = 5, .data = "\x57\x00\x02\x00\x00" },
789 + // 0x3B, 0x3c
790 + { .size = 9, .data = "\x3B\x00\x08\x00\x00\x00\x78\x00\x00" },
791 + { .size = 9, .data = "\x3C\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
792 + { .size = 9, .data = "\x3E\x00\x08\x00\x00\x00\x78\x00\x00" },
793 + { .size = 9, .data = "\x3F\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
794 + { .size = 9, .data = "\x40\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
795 + { .size = 9, .data = "\x43\x00\x00\x01\x00\xFF\xFF\xFF\x00" },
796 + // 0x51, 0x52: output mixer
797 + { .size = 9, .data = "\x51\x00\x80\x00\x00\x00\x00\x00\x00" },
798 + { .size = 9, .data = "\x52\x00\x80\x00\x00\x00\x00\x00\x00" },
799 + // PEQ defaults
800 + { .size = 21, .data = "\x29\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
801 + { .size = 21, .data = "\x2A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
802 + { .size = 21, .data = "\x2B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
803 + { .size = 21, .data = "\x2C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
804 + { .size = 21, .data = "\x2D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
805 + { .size = 21, .data = "\x2E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
806 + { .size = 21, .data = "\x2F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
807 + { .size = 21, .data = "\x30\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
808 + { .size = 21, .data = "\x31\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
809 + { .size = 21, .data = "\x32\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
810 + { .size = 21, .data = "\x33\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
811 + { .size = 21, .data = "\x34\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
812 + { .size = 21, .data = "\x35\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
813 + { .size = 21, .data = "\x36\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
814 + { .size = 21, .data = "\x58\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
815 + { .size = 21, .data = "\x59\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
816 + { .size = 21, .data = "\x5C\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
817 + { .size = 21, .data = "\x5D\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
818 + { .size = 21, .data = "\x5E\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
819 + { .size = 21, .data = "\x5F\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
820 + { .size = 21, .data = "\x5A\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
821 + { .size = 21, .data = "\x5B\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" },
822 +};
823 +
824 +
825 +#endif /* _TAS5713_H */
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