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Diffstat (limited to 'sound/soc/codecs/wm8728.c')
-rw-r--r--sound/soc/codecs/wm8728.c294
1 files changed, 95 insertions, 199 deletions
diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index 34be2d2b69ef..ae2292444783 100644
--- a/sound/soc/codecs/wm8728.c
+++ b/sound/soc/codecs/wm8728.c
@@ -29,8 +29,6 @@
29 29
30#include "wm8728.h" 30#include "wm8728.h"
31 31
32struct snd_soc_codec_device soc_codec_dev_wm8728;
33
34/* 32/*
35 * We can't read the WM8728 register space so we cache them instead. 33 * We can't read the WM8728 register space so we cache them instead.
36 * Note that the defaults here aren't the physical defaults, we latch 34 * Note that the defaults here aren't the physical defaults, we latch
@@ -44,6 +42,12 @@ static const u16 wm8728_reg_defaults[] = {
44 0x100, 42 0x100,
45}; 43};
46 44
45/* codec private data */
46struct wm8728_priv {
47 enum snd_soc_control_type control_type;
48 void *control_data;
49};
50
47static const DECLARE_TLV_DB_SCALE(wm8728_tlv, -12750, 50, 1); 51static const DECLARE_TLV_DB_SCALE(wm8728_tlv, -12750, 50, 1);
48 52
49static const struct snd_kcontrol_new wm8728_snd_controls[] = { 53static const struct snd_kcontrol_new wm8728_snd_controls[] = {
@@ -96,8 +100,7 @@ static int wm8728_hw_params(struct snd_pcm_substream *substream,
96 struct snd_soc_dai *dai) 100 struct snd_soc_dai *dai)
97{ 101{
98 struct snd_soc_pcm_runtime *rtd = substream->private_data; 102 struct snd_soc_pcm_runtime *rtd = substream->private_data;
99 struct snd_soc_device *socdev = rtd->socdev; 103 struct snd_soc_codec *codec = rtd->codec;
100 struct snd_soc_codec *codec = socdev->card->codec;
101 u16 dac = snd_soc_read(codec, WM8728_DACCTL); 104 u16 dac = snd_soc_read(codec, WM8728_DACCTL);
102 105
103 dac &= ~0x18; 106 dac &= ~0x18;
@@ -210,8 +213,8 @@ static struct snd_soc_dai_ops wm8728_dai_ops = {
210 .set_fmt = wm8728_set_dai_fmt, 213 .set_fmt = wm8728_set_dai_fmt,
211}; 214};
212 215
213struct snd_soc_dai wm8728_dai = { 216static struct snd_soc_dai_driver wm8728_dai = {
214 .name = "WM8728", 217 .name = "wm8728-hifi",
215 .playback = { 218 .playback = {
216 .stream_name = "Playback", 219 .stream_name = "Playback",
217 .channels_min = 2, 220 .channels_min = 2,
@@ -221,63 +224,32 @@ struct snd_soc_dai wm8728_dai = {
221 }, 224 },
222 .ops = &wm8728_dai_ops, 225 .ops = &wm8728_dai_ops,
223}; 226};
224EXPORT_SYMBOL_GPL(wm8728_dai);
225 227
226static int wm8728_suspend(struct platform_device *pdev, pm_message_t state) 228static int wm8728_suspend(struct snd_soc_codec *codec, pm_message_t state)
227{ 229{
228 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
229 struct snd_soc_codec *codec = socdev->card->codec;
230
231 wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF); 230 wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
232 231
233 return 0; 232 return 0;
234} 233}
235 234
236static int wm8728_resume(struct platform_device *pdev) 235static int wm8728_resume(struct snd_soc_codec *codec)
237{ 236{
238 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
239 struct snd_soc_codec *codec = socdev->card->codec;
240
241 wm8728_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 237 wm8728_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
242 238
243 return 0; 239 return 0;
244} 240}
245 241
246/* 242static int wm8728_probe(struct snd_soc_codec *codec)
247 * initialise the WM8728 driver
248 * register the mixer and dsp interfaces with the kernel
249 */
250static int wm8728_init(struct snd_soc_device *socdev,
251 enum snd_soc_control_type control)
252{ 243{
253 struct snd_soc_codec *codec = socdev->card->codec; 244 struct wm8728_priv *wm8728 = snd_soc_codec_get_drvdata(codec);
254 int ret = 0; 245 int ret;
255
256 codec->name = "WM8728";
257 codec->owner = THIS_MODULE;
258 codec->set_bias_level = wm8728_set_bias_level;
259 codec->dai = &wm8728_dai;
260 codec->num_dai = 1;
261 codec->bias_level = SND_SOC_BIAS_OFF;
262 codec->reg_cache_size = ARRAY_SIZE(wm8728_reg_defaults);
263 codec->reg_cache = kmemdup(wm8728_reg_defaults,
264 sizeof(wm8728_reg_defaults),
265 GFP_KERNEL);
266 if (codec->reg_cache == NULL)
267 return -ENOMEM;
268 246
269 ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); 247 codec->control_data = wm8728->control_data;
248 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8728->control_type);
270 if (ret < 0) { 249 if (ret < 0) {
271 printk(KERN_ERR "wm8728: failed to configure cache I/O: %d\n", 250 printk(KERN_ERR "wm8728: failed to configure cache I/O: %d\n",
272 ret); 251 ret);
273 goto err; 252 return ret;
274 }
275
276 /* register pcms */
277 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
278 if (ret < 0) {
279 printk(KERN_ERR "wm8728: failed to create pcms\n");
280 goto err;
281 } 253 }
282 254
283 /* power on device */ 255 /* power on device */
@@ -288,128 +260,56 @@ static int wm8728_init(struct snd_soc_device *socdev,
288 wm8728_add_widgets(codec); 260 wm8728_add_widgets(codec);
289 261
290 return ret; 262 return ret;
291
292err:
293 kfree(codec->reg_cache);
294 return ret;
295} 263}
296 264
297static struct snd_soc_device *wm8728_socdev; 265static int wm8728_remove(struct snd_soc_codec *codec)
298
299#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
300
301/*
302 * WM8728 2 wire address is determined by GPIO5
303 * state during powerup.
304 * low = 0x1a
305 * high = 0x1b
306 */
307
308static int wm8728_i2c_probe(struct i2c_client *i2c,
309 const struct i2c_device_id *id)
310{ 266{
311 struct snd_soc_device *socdev = wm8728_socdev; 267 wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
312 struct snd_soc_codec *codec = socdev->card->codec;
313 int ret;
314
315 i2c_set_clientdata(i2c, codec);
316 codec->control_data = i2c;
317
318 ret = wm8728_init(socdev, SND_SOC_I2C);
319 if (ret < 0)
320 pr_err("failed to initialise WM8728\n");
321
322 return ret;
323}
324
325static int wm8728_i2c_remove(struct i2c_client *client)
326{
327 struct snd_soc_codec *codec = i2c_get_clientdata(client);
328 kfree(codec->reg_cache);
329 return 0; 268 return 0;
330} 269}
331 270
332static const struct i2c_device_id wm8728_i2c_id[] = { 271static struct snd_soc_codec_driver soc_codec_dev_wm8728 = {
333 { "wm8728", 0 }, 272 .probe = wm8728_probe,
334 { } 273 .remove = wm8728_remove,
335}; 274 .suspend = wm8728_suspend,
336MODULE_DEVICE_TABLE(i2c, wm8728_i2c_id); 275 .resume = wm8728_resume,
337 276 .set_bias_level = wm8728_set_bias_level,
338static struct i2c_driver wm8728_i2c_driver = { 277 .reg_cache_size = sizeof(wm8728_reg_defaults),
339 .driver = { 278 .reg_word_size = sizeof(u16),
340 .name = "WM8728 I2C Codec", 279 .reg_cache_default = wm8728_reg_defaults,
341 .owner = THIS_MODULE,
342 },
343 .probe = wm8728_i2c_probe,
344 .remove = wm8728_i2c_remove,
345 .id_table = wm8728_i2c_id,
346}; 280};
347 281
348static int wm8728_add_i2c_device(struct platform_device *pdev,
349 const struct wm8728_setup_data *setup)
350{
351 struct i2c_board_info info;
352 struct i2c_adapter *adapter;
353 struct i2c_client *client;
354 int ret;
355
356 ret = i2c_add_driver(&wm8728_i2c_driver);
357 if (ret != 0) {
358 dev_err(&pdev->dev, "can't add i2c driver\n");
359 return ret;
360 }
361
362 memset(&info, 0, sizeof(struct i2c_board_info));
363 info.addr = setup->i2c_address;
364 strlcpy(info.type, "wm8728", I2C_NAME_SIZE);
365
366 adapter = i2c_get_adapter(setup->i2c_bus);
367 if (!adapter) {
368 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
369 setup->i2c_bus);
370 goto err_driver;
371 }
372
373 client = i2c_new_device(adapter, &info);
374 i2c_put_adapter(adapter);
375 if (!client) {
376 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
377 (unsigned int)info.addr);
378 goto err_driver;
379 }
380
381 return 0;
382
383err_driver:
384 i2c_del_driver(&wm8728_i2c_driver);
385 return -ENODEV;
386}
387#endif
388
389#if defined(CONFIG_SPI_MASTER) 282#if defined(CONFIG_SPI_MASTER)
390static int __devinit wm8728_spi_probe(struct spi_device *spi) 283static int __devinit wm8728_spi_probe(struct spi_device *spi)
391{ 284{
392 struct snd_soc_device *socdev = wm8728_socdev; 285 struct wm8728_priv *wm8728;
393 struct snd_soc_codec *codec = socdev->card->codec;
394 int ret; 286 int ret;
395 287
396 codec->control_data = spi; 288 wm8728 = kzalloc(sizeof(struct wm8728_priv), GFP_KERNEL);
289 if (wm8728 == NULL)
290 return -ENOMEM;
397 291
398 ret = wm8728_init(socdev, SND_SOC_SPI); 292 wm8728->control_data = spi;
399 if (ret < 0) 293 wm8728->control_type = SND_SOC_SPI;
400 dev_err(&spi->dev, "failed to initialise WM8728\n"); 294 spi_set_drvdata(spi, wm8728);
401 295
296 ret = snd_soc_register_codec(&spi->dev,
297 &soc_codec_dev_wm8728, &wm8728_dai, 1);
298 if (ret < 0)
299 kfree(wm8728);
402 return ret; 300 return ret;
403} 301}
404 302
405static int __devexit wm8728_spi_remove(struct spi_device *spi) 303static int __devexit wm8728_spi_remove(struct spi_device *spi)
406{ 304{
305 snd_soc_unregister_codec(&spi->dev);
306 kfree(spi_get_drvdata(spi));
407 return 0; 307 return 0;
408} 308}
409 309
410static struct spi_driver wm8728_spi_driver = { 310static struct spi_driver wm8728_spi_driver = {
411 .driver = { 311 .driver = {
412 .name = "wm8728", 312 .name = "wm8728-codec",
413 .bus = &spi_bus_type, 313 .bus = &spi_bus_type,
414 .owner = THIS_MODULE, 314 .owner = THIS_MODULE,
415 }, 315 },
@@ -418,85 +318,81 @@ static struct spi_driver wm8728_spi_driver = {
418}; 318};
419#endif /* CONFIG_SPI_MASTER */ 319#endif /* CONFIG_SPI_MASTER */
420 320
421static int wm8728_probe(struct platform_device *pdev) 321#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
322static __devinit int wm8728_i2c_probe(struct i2c_client *i2c,
323 const struct i2c_device_id *id)
422{ 324{
423 struct snd_soc_device *socdev = platform_get_drvdata(pdev); 325 struct wm8728_priv *wm8728;
424 struct wm8728_setup_data *setup; 326 int ret;
425 struct snd_soc_codec *codec;
426 int ret = 0;
427 327
428 setup = socdev->codec_data; 328 wm8728 = kzalloc(sizeof(struct wm8728_priv), GFP_KERNEL);
429 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); 329 if (wm8728 == NULL)
430 if (codec == NULL)
431 return -ENOMEM; 330 return -ENOMEM;
432 331
433 socdev->card->codec = codec; 332 i2c_set_clientdata(i2c, wm8728);
434 mutex_init(&codec->mutex); 333 wm8728->control_data = i2c;
435 INIT_LIST_HEAD(&codec->dapm_widgets); 334 wm8728->control_type = SND_SOC_I2C;
436 INIT_LIST_HEAD(&codec->dapm_paths); 335
336 ret = snd_soc_register_codec(&i2c->dev,
337 &soc_codec_dev_wm8728, &wm8728_dai, 1);
338 if (ret < 0)
339 kfree(wm8728);
340 return ret;
341}
342
343static __devexit int wm8728_i2c_remove(struct i2c_client *client)
344{
345 snd_soc_unregister_codec(&client->dev);
346 kfree(i2c_get_clientdata(client));
347 return 0;
348}
437 349
438 wm8728_socdev = socdev; 350static const struct i2c_device_id wm8728_i2c_id[] = {
439 ret = -ENODEV; 351 { "wm8728", 0 },
352 { }
353};
354MODULE_DEVICE_TABLE(i2c, wm8728_i2c_id);
355
356static struct i2c_driver wm8728_i2c_driver = {
357 .driver = {
358 .name = "wm8728-codec",
359 .owner = THIS_MODULE,
360 },
361 .probe = wm8728_i2c_probe,
362 .remove = __devexit_p(wm8728_i2c_remove),
363 .id_table = wm8728_i2c_id,
364};
365#endif
440 366
367static int __init wm8728_modinit(void)
368{
369 int ret = 0;
441#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 370#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
442 if (setup->i2c_address) { 371 ret = i2c_add_driver(&wm8728_i2c_driver);
443 ret = wm8728_add_i2c_device(pdev, setup); 372 if (ret != 0) {
373 printk(KERN_ERR "Failed to register wm8728 I2C driver: %d\n",
374 ret);
444 } 375 }
445#endif 376#endif
446#if defined(CONFIG_SPI_MASTER) 377#if defined(CONFIG_SPI_MASTER)
447 if (setup->spi) { 378 ret = spi_register_driver(&wm8728_spi_driver);
448 ret = spi_register_driver(&wm8728_spi_driver); 379 if (ret != 0) {
449 if (ret != 0) 380 printk(KERN_ERR "Failed to register wm8728 SPI driver: %d\n",
450 printk(KERN_ERR "can't add spi driver"); 381 ret);
451 } 382 }
452#endif 383#endif
453
454 if (ret != 0)
455 kfree(codec);
456
457 return ret; 384 return ret;
458} 385}
386module_init(wm8728_modinit);
459 387
460/* power down chip */ 388static void __exit wm8728_exit(void)
461static int wm8728_remove(struct platform_device *pdev)
462{ 389{
463 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
464 struct snd_soc_codec *codec = socdev->card->codec;
465
466 if (codec->control_data)
467 wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
468
469 snd_soc_free_pcms(socdev);
470 snd_soc_dapm_free(socdev);
471#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 390#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
472 i2c_unregister_device(codec->control_data);
473 i2c_del_driver(&wm8728_i2c_driver); 391 i2c_del_driver(&wm8728_i2c_driver);
474#endif 392#endif
475#if defined(CONFIG_SPI_MASTER) 393#if defined(CONFIG_SPI_MASTER)
476 spi_unregister_driver(&wm8728_spi_driver); 394 spi_unregister_driver(&wm8728_spi_driver);
477#endif 395#endif
478 kfree(codec);
479
480 return 0;
481}
482
483struct snd_soc_codec_device soc_codec_dev_wm8728 = {
484 .probe = wm8728_probe,
485 .remove = wm8728_remove,
486 .suspend = wm8728_suspend,
487 .resume = wm8728_resume,
488};
489EXPORT_SYMBOL_GPL(soc_codec_dev_wm8728);
490
491static int __init wm8728_modinit(void)
492{
493 return snd_soc_register_dai(&wm8728_dai);
494}
495module_init(wm8728_modinit);
496
497static void __exit wm8728_exit(void)
498{
499 snd_soc_unregister_dai(&wm8728_dai);
500} 396}
501module_exit(wm8728_exit); 397module_exit(wm8728_exit);
502 398