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Diffstat (limited to 'sound/soc/codecs/wm8728.c')
-rw-r--r--sound/soc/codecs/wm8728.c289
1 files changed, 90 insertions, 199 deletions
diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c
index 34be2d2b69ef..075f35e4f4cb 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 +42,11 @@ 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};
49
47static const DECLARE_TLV_DB_SCALE(wm8728_tlv, -12750, 50, 1); 50static const DECLARE_TLV_DB_SCALE(wm8728_tlv, -12750, 50, 1);
48 51
49static const struct snd_kcontrol_new wm8728_snd_controls[] = { 52static const struct snd_kcontrol_new wm8728_snd_controls[] = {
@@ -96,8 +99,7 @@ static int wm8728_hw_params(struct snd_pcm_substream *substream,
96 struct snd_soc_dai *dai) 99 struct snd_soc_dai *dai)
97{ 100{
98 struct snd_soc_pcm_runtime *rtd = substream->private_data; 101 struct snd_soc_pcm_runtime *rtd = substream->private_data;
99 struct snd_soc_device *socdev = rtd->socdev; 102 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); 103 u16 dac = snd_soc_read(codec, WM8728_DACCTL);
102 104
103 dac &= ~0x18; 105 dac &= ~0x18;
@@ -210,8 +212,8 @@ static struct snd_soc_dai_ops wm8728_dai_ops = {
210 .set_fmt = wm8728_set_dai_fmt, 212 .set_fmt = wm8728_set_dai_fmt,
211}; 213};
212 214
213struct snd_soc_dai wm8728_dai = { 215static struct snd_soc_dai_driver wm8728_dai = {
214 .name = "WM8728", 216 .name = "wm8728-hifi",
215 .playback = { 217 .playback = {
216 .stream_name = "Playback", 218 .stream_name = "Playback",
217 .channels_min = 2, 219 .channels_min = 2,
@@ -221,63 +223,31 @@ struct snd_soc_dai wm8728_dai = {
221 }, 223 },
222 .ops = &wm8728_dai_ops, 224 .ops = &wm8728_dai_ops,
223}; 225};
224EXPORT_SYMBOL_GPL(wm8728_dai);
225 226
226static int wm8728_suspend(struct platform_device *pdev, pm_message_t state) 227static int wm8728_suspend(struct snd_soc_codec *codec, pm_message_t state)
227{ 228{
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); 229 wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
232 230
233 return 0; 231 return 0;
234} 232}
235 233
236static int wm8728_resume(struct platform_device *pdev) 234static int wm8728_resume(struct snd_soc_codec *codec)
237{ 235{
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); 236 wm8728_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
242 237
243 return 0; 238 return 0;
244} 239}
245 240
246/* 241static 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{ 242{
253 struct snd_soc_codec *codec = socdev->card->codec; 243 struct wm8728_priv *wm8728 = snd_soc_codec_get_drvdata(codec);
254 int ret = 0; 244 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;
268 245
269 ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); 246 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8728->control_type);
270 if (ret < 0) { 247 if (ret < 0) {
271 printk(KERN_ERR "wm8728: failed to configure cache I/O: %d\n", 248 printk(KERN_ERR "wm8728: failed to configure cache I/O: %d\n",
272 ret); 249 ret);
273 goto err; 250 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 } 251 }
282 252
283 /* power on device */ 253 /* power on device */
@@ -288,215 +258,136 @@ static int wm8728_init(struct snd_soc_device *socdev,
288 wm8728_add_widgets(codec); 258 wm8728_add_widgets(codec);
289 259
290 return ret; 260 return ret;
291
292err:
293 kfree(codec->reg_cache);
294 return ret;
295} 261}
296 262
297static struct snd_soc_device *wm8728_socdev; 263static int wm8728_remove(struct snd_soc_codec *codec)
298 264{
299#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 265 wm8728_set_bias_level(codec, SND_SOC_BIAS_OFF);
266 return 0;
267}
300 268
301/* 269static struct snd_soc_codec_driver soc_codec_dev_wm8728 = {
302 * WM8728 2 wire address is determined by GPIO5 270 .probe = wm8728_probe,
303 * state during powerup. 271 .remove = wm8728_remove,
304 * low = 0x1a 272 .suspend = wm8728_suspend,
305 * high = 0x1b 273 .resume = wm8728_resume,
306 */ 274 .set_bias_level = wm8728_set_bias_level,
275 .reg_cache_size = ARRAY_SIZE(wm8728_reg_defaults),
276 .reg_word_size = sizeof(u16),
277 .reg_cache_default = wm8728_reg_defaults,
278};
307 279
308static int wm8728_i2c_probe(struct i2c_client *i2c, 280#if defined(CONFIG_SPI_MASTER)
309 const struct i2c_device_id *id) 281static int __devinit wm8728_spi_probe(struct spi_device *spi)
310{ 282{
311 struct snd_soc_device *socdev = wm8728_socdev; 283 struct wm8728_priv *wm8728;
312 struct snd_soc_codec *codec = socdev->card->codec;
313 int ret; 284 int ret;
314 285
315 i2c_set_clientdata(i2c, codec); 286 wm8728 = kzalloc(sizeof(struct wm8728_priv), GFP_KERNEL);
316 codec->control_data = i2c; 287 if (wm8728 == NULL)
288 return -ENOMEM;
289
290 wm8728->control_type = SND_SOC_SPI;
291 spi_set_drvdata(spi, wm8728);
317 292
318 ret = wm8728_init(socdev, SND_SOC_I2C); 293 ret = snd_soc_register_codec(&spi->dev,
294 &soc_codec_dev_wm8728, &wm8728_dai, 1);
319 if (ret < 0) 295 if (ret < 0)
320 pr_err("failed to initialise WM8728\n"); 296 kfree(wm8728);
321
322 return ret; 297 return ret;
323} 298}
324 299
325static int wm8728_i2c_remove(struct i2c_client *client) 300static int __devexit wm8728_spi_remove(struct spi_device *spi)
326{ 301{
327 struct snd_soc_codec *codec = i2c_get_clientdata(client); 302 snd_soc_unregister_codec(&spi->dev);
328 kfree(codec->reg_cache); 303 kfree(spi_get_drvdata(spi));
329 return 0; 304 return 0;
330} 305}
331 306
332static const struct i2c_device_id wm8728_i2c_id[] = { 307static struct spi_driver wm8728_spi_driver = {
333 { "wm8728", 0 },
334 { }
335};
336MODULE_DEVICE_TABLE(i2c, wm8728_i2c_id);
337
338static struct i2c_driver wm8728_i2c_driver = {
339 .driver = { 308 .driver = {
340 .name = "WM8728 I2C Codec", 309 .name = "wm8728-codec",
341 .owner = THIS_MODULE, 310 .owner = THIS_MODULE,
342 }, 311 },
343 .probe = wm8728_i2c_probe, 312 .probe = wm8728_spi_probe,
344 .remove = wm8728_i2c_remove, 313 .remove = __devexit_p(wm8728_spi_remove),
345 .id_table = wm8728_i2c_id,
346}; 314};
315#endif /* CONFIG_SPI_MASTER */
347 316
348static int wm8728_add_i2c_device(struct platform_device *pdev, 317#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
349 const struct wm8728_setup_data *setup) 318static __devinit int wm8728_i2c_probe(struct i2c_client *i2c,
319 const struct i2c_device_id *id)
350{ 320{
351 struct i2c_board_info info; 321 struct wm8728_priv *wm8728;
352 struct i2c_adapter *adapter;
353 struct i2c_client *client;
354 int ret; 322 int ret;
355 323
356 ret = i2c_add_driver(&wm8728_i2c_driver); 324 wm8728 = kzalloc(sizeof(struct wm8728_priv), GFP_KERNEL);
357 if (ret != 0) { 325 if (wm8728 == NULL)
358 dev_err(&pdev->dev, "can't add i2c driver\n"); 326 return -ENOMEM;
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)
390static int __devinit wm8728_spi_probe(struct spi_device *spi)
391{
392 struct snd_soc_device *socdev = wm8728_socdev;
393 struct snd_soc_codec *codec = socdev->card->codec;
394 int ret;
395 327
396 codec->control_data = spi; 328 i2c_set_clientdata(i2c, wm8728);
329 wm8728->control_type = SND_SOC_I2C;
397 330
398 ret = wm8728_init(socdev, SND_SOC_SPI); 331 ret = snd_soc_register_codec(&i2c->dev,
332 &soc_codec_dev_wm8728, &wm8728_dai, 1);
399 if (ret < 0) 333 if (ret < 0)
400 dev_err(&spi->dev, "failed to initialise WM8728\n"); 334 kfree(wm8728);
401
402 return ret; 335 return ret;
403} 336}
404 337
405static int __devexit wm8728_spi_remove(struct spi_device *spi) 338static __devexit int wm8728_i2c_remove(struct i2c_client *client)
406{ 339{
340 snd_soc_unregister_codec(&client->dev);
341 kfree(i2c_get_clientdata(client));
407 return 0; 342 return 0;
408} 343}
409 344
410static struct spi_driver wm8728_spi_driver = { 345static const struct i2c_device_id wm8728_i2c_id[] = {
346 { "wm8728", 0 },
347 { }
348};
349MODULE_DEVICE_TABLE(i2c, wm8728_i2c_id);
350
351static struct i2c_driver wm8728_i2c_driver = {
411 .driver = { 352 .driver = {
412 .name = "wm8728", 353 .name = "wm8728-codec",
413 .bus = &spi_bus_type, 354 .owner = THIS_MODULE,
414 .owner = THIS_MODULE,
415 }, 355 },
416 .probe = wm8728_spi_probe, 356 .probe = wm8728_i2c_probe,
417 .remove = __devexit_p(wm8728_spi_remove), 357 .remove = __devexit_p(wm8728_i2c_remove),
358 .id_table = wm8728_i2c_id,
418}; 359};
419#endif /* CONFIG_SPI_MASTER */ 360#endif
420 361
421static int wm8728_probe(struct platform_device *pdev) 362static int __init wm8728_modinit(void)
422{ 363{
423 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
424 struct wm8728_setup_data *setup;
425 struct snd_soc_codec *codec;
426 int ret = 0; 364 int ret = 0;
427
428 setup = socdev->codec_data;
429 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
430 if (codec == NULL)
431 return -ENOMEM;
432
433 socdev->card->codec = codec;
434 mutex_init(&codec->mutex);
435 INIT_LIST_HEAD(&codec->dapm_widgets);
436 INIT_LIST_HEAD(&codec->dapm_paths);
437
438 wm8728_socdev = socdev;
439 ret = -ENODEV;
440
441#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 365#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
442 if (setup->i2c_address) { 366 ret = i2c_add_driver(&wm8728_i2c_driver);
443 ret = wm8728_add_i2c_device(pdev, setup); 367 if (ret != 0) {
368 printk(KERN_ERR "Failed to register wm8728 I2C driver: %d\n",
369 ret);
444 } 370 }
445#endif 371#endif
446#if defined(CONFIG_SPI_MASTER) 372#if defined(CONFIG_SPI_MASTER)
447 if (setup->spi) { 373 ret = spi_register_driver(&wm8728_spi_driver);
448 ret = spi_register_driver(&wm8728_spi_driver); 374 if (ret != 0) {
449 if (ret != 0) 375 printk(KERN_ERR "Failed to register wm8728 SPI driver: %d\n",
450 printk(KERN_ERR "can't add spi driver"); 376 ret);
451 } 377 }
452#endif 378#endif
453
454 if (ret != 0)
455 kfree(codec);
456
457 return ret; 379 return ret;
458} 380}
381module_init(wm8728_modinit);
459 382
460/* power down chip */ 383static void __exit wm8728_exit(void)
461static int wm8728_remove(struct platform_device *pdev)
462{ 384{
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) 385#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
472 i2c_unregister_device(codec->control_data);
473 i2c_del_driver(&wm8728_i2c_driver); 386 i2c_del_driver(&wm8728_i2c_driver);
474#endif 387#endif
475#if defined(CONFIG_SPI_MASTER) 388#if defined(CONFIG_SPI_MASTER)
476 spi_unregister_driver(&wm8728_spi_driver); 389 spi_unregister_driver(&wm8728_spi_driver);
477#endif 390#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} 391}
501module_exit(wm8728_exit); 392module_exit(wm8728_exit);
502 393