diff options
Diffstat (limited to 'sound/soc/codecs/wm8903.c')
-rw-r--r-- | sound/soc/codecs/wm8903.c | 268 |
1 files changed, 96 insertions, 172 deletions
diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c index bf08282..f5d73ed 100644 --- a/sound/soc/codecs/wm8903.c +++ b/sound/soc/codecs/wm8903.c @@ -213,10 +213,12 @@ static u16 wm8903_reg_defaults[] = { }; struct wm8903_priv { - struct snd_soc_codec codec; + u16 reg_cache[ARRAY_SIZE(wm8903_reg_defaults)]; int sysclk; + struct i2c_client *control_data; + int irq; /* Reference counts */ int class_w_users; @@ -252,7 +254,6 @@ static int wm8903_volatile_register(unsigned int reg) static int wm8903_run_sequence(struct snd_soc_codec *codec, unsigned int start) { u16 reg[5]; - struct i2c_client *i2c = codec->control_data; struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); BUG_ON(start > 48); @@ -262,7 +263,7 @@ static int wm8903_run_sequence(struct snd_soc_codec *codec, unsigned int start) snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0] | WM8903_WSEQ_ENA); - dev_dbg(&i2c->dev, "Starting sequence at %d\n", start); + dev_dbg(codec->dev, "Starting sequence at %d\n", start); snd_soc_write(codec, WM8903_WRITE_SEQUENCER_3, start | WM8903_WSEQ_START); @@ -277,7 +278,7 @@ static int wm8903_run_sequence(struct snd_soc_codec *codec, unsigned int start) reg[4] = snd_soc_read(codec, WM8903_WRITE_SEQUENCER_4); } while (reg[4] & WM8903_WSEQ_BUSY); - dev_dbg(&i2c->dev, "Sequence complete\n"); + dev_dbg(codec->dev, "Sequence complete\n"); /* Disable the sequencer again if we enabled it */ snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0]); @@ -422,7 +423,6 @@ static int wm8903_class_w_put(struct snd_kcontrol *kcontrol, struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); struct snd_soc_codec *codec = widget->codec; struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); - struct i2c_client *i2c = codec->control_data; u16 reg; int ret; @@ -431,7 +431,7 @@ static int wm8903_class_w_put(struct snd_kcontrol *kcontrol, /* Turn it off if we're about to enable bypass */ if (ucontrol->value.integer.value[0]) { if (wm8903->class_w_users == 0) { - dev_dbg(&i2c->dev, "Disabling Class W\n"); + dev_dbg(codec->dev, "Disabling Class W\n"); snd_soc_write(codec, WM8903_CLASS_W_0, reg & ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V)); } @@ -444,14 +444,14 @@ static int wm8903_class_w_put(struct snd_kcontrol *kcontrol, /* If we've just disabled the last bypass path turn Class W on */ if (!ucontrol->value.integer.value[0]) { if (wm8903->class_w_users == 1) { - dev_dbg(&i2c->dev, "Enabling Class W\n"); + dev_dbg(codec->dev, "Enabling Class W\n"); snd_soc_write(codec, WM8903_CLASS_W_0, reg | WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V); } wm8903->class_w_users--; } - dev_dbg(&i2c->dev, "Bypass use count now %d\n", + dev_dbg(codec->dev, "Bypass use count now %d\n", wm8903->class_w_users); return ret; @@ -935,7 +935,6 @@ static int wm8903_add_widgets(struct snd_soc_codec *codec) static int wm8903_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { - struct i2c_client *i2c = codec->control_data; u16 reg, reg2; switch (level) { @@ -974,7 +973,7 @@ static int wm8903_set_bias_level(struct snd_soc_codec *codec, /* By default no bypass paths are enabled so * enable Class W support. */ - dev_dbg(&i2c->dev, "Enabling Class W\n"); + dev_dbg(codec->dev, "Enabling Class W\n"); snd_soc_write(codec, WM8903_CLASS_W_0, reg | WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V); } @@ -1228,10 +1227,8 @@ static int wm8903_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_device *socdev = rtd->socdev; - struct snd_soc_codec *codec = socdev->card->codec; + struct snd_soc_codec *codec = rtd->codec; struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); - struct i2c_client *i2c = codec->control_data; struct snd_pcm_runtime *master_runtime; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) @@ -1245,7 +1242,7 @@ static int wm8903_startup(struct snd_pcm_substream *substream, if (wm8903->master_substream) { master_runtime = wm8903->master_substream->runtime; - dev_dbg(&i2c->dev, "Constraining to %d bits\n", + dev_dbg(codec->dev, "Constraining to %d bits\n", master_runtime->sample_bits); snd_pcm_hw_constraint_minmax(substream->runtime, @@ -1264,8 +1261,7 @@ static void wm8903_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_device *socdev = rtd->socdev; - struct snd_soc_codec *codec = socdev->card->codec; + struct snd_soc_codec *codec = rtd->codec; struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) @@ -1284,10 +1280,8 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_device *socdev = rtd->socdev; - struct snd_soc_codec *codec = socdev->card->codec; + struct snd_soc_codec *codec =rtd->codec; struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); - struct i2c_client *i2c = codec->control_data; int fs = params_rate(params); int bclk; int bclk_div; @@ -1306,7 +1300,7 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream, u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1); if (substream == wm8903->slave_substream) { - dev_dbg(&i2c->dev, "Ignoring hw_params for slave substream\n"); + dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n"); return 0; } @@ -1332,7 +1326,7 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream, switch (sample_rates[dsp_config].rate) { case 88200: case 96000: - dev_err(&i2c->dev, "%dHz unsupported by ADC\n", + dev_err(codec->dev, "%dHz unsupported by ADC\n", fs); return -EINVAL; @@ -1340,7 +1334,7 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream, break; } - dev_dbg(&i2c->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate); + dev_dbg(codec->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate); clock1 &= ~WM8903_SAMPLE_RATE_MASK; clock1 |= sample_rates[dsp_config].value; @@ -1366,7 +1360,7 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } - dev_dbg(&i2c->dev, "MCLK = %dHz, target sample rate = %dHz\n", + dev_dbg(codec->dev, "MCLK = %dHz, target sample rate = %dHz\n", wm8903->sysclk, fs); /* We may not have an MCLK which allows us to generate exactly @@ -1401,12 +1395,12 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream, clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT; clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT; - dev_dbg(&i2c->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n", + dev_dbg(codec->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n", clk_sys_ratios[clk_config].rate, clk_sys_ratios[clk_config].mode, clk_sys_ratios[clk_config].div); - dev_dbg(&i2c->dev, "Actual CLK_SYS = %dHz\n", clk_sys); + dev_dbg(codec->dev, "Actual CLK_SYS = %dHz\n", clk_sys); /* We may not get quite the right frequency if using * approximate clocks so look for the closest match that is @@ -1428,7 +1422,7 @@ static int wm8903_hw_params(struct snd_pcm_substream *substream, aif2 &= ~WM8903_BCLK_DIV_MASK; aif3 &= ~WM8903_LRCLK_RATE_MASK; - dev_dbg(&i2c->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n", + dev_dbg(codec->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n", bclk_divs[bclk_div].ratio / 10, bclk, (clk_sys * 10) / bclk_divs[bclk_div].ratio); @@ -1504,8 +1498,8 @@ EXPORT_SYMBOL_GPL(wm8903_mic_detect); static irqreturn_t wm8903_irq(int irq, void *data) { - struct wm8903_priv *wm8903 = data; - struct snd_soc_codec *codec = &wm8903->codec; + struct snd_soc_codec *codec = data; + struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); int mic_report; int int_pol; int int_val = 0; @@ -1586,8 +1580,8 @@ static struct snd_soc_dai_ops wm8903_dai_ops = { .set_sysclk = wm8903_set_dai_sysclk, }; -struct snd_soc_dai wm8903_dai = { - .name = "WM8903", +static struct snd_soc_dai_driver wm8903_dai = { + .name = "wm8903-hifi", .playback = { .stream_name = "Playback", .channels_min = 2, @@ -1605,23 +1599,16 @@ struct snd_soc_dai wm8903_dai = { .ops = &wm8903_dai_ops, .symmetric_rates = 1, }; -EXPORT_SYMBOL_GPL(wm8903_dai); -static int wm8903_suspend(struct platform_device *pdev, pm_message_t state) +static int wm8903_suspend(struct snd_soc_codec *codec, pm_message_t state) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } -static int wm8903_resume(struct platform_device *pdev) +static int wm8903_resume(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - struct i2c_client *i2c = codec->control_data; int i; u16 *reg_cache = codec->reg_cache; u16 *tmp_cache = kmemdup(reg_cache, sizeof(wm8903_reg_defaults), @@ -1637,65 +1624,38 @@ static int wm8903_resume(struct platform_device *pdev) snd_soc_write(codec, i, tmp_cache[i]); kfree(tmp_cache); } else { - dev_err(&i2c->dev, "Failed to allocate temporary cache\n"); + dev_err(codec->dev, "Failed to allocate temporary cache\n"); } return 0; } -static struct snd_soc_codec *wm8903_codec; - -static __devinit int wm8903_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +static int wm8903_probe(struct snd_soc_codec *codec) { - struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev); - struct wm8903_priv *wm8903; - struct snd_soc_codec *codec; + struct wm8903_platform_data *pdata = dev_get_platdata(codec->dev); + struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec); int ret, i; int trigger, irq_pol; u16 val; - wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL); - if (wm8903 == NULL) - return -ENOMEM; - - codec = &wm8903->codec; - - mutex_init(&codec->mutex); - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - - codec->dev = &i2c->dev; - codec->name = "WM8903"; - codec->owner = THIS_MODULE; - codec->bias_level = SND_SOC_BIAS_OFF; - codec->set_bias_level = wm8903_set_bias_level; - codec->dai = &wm8903_dai; - codec->num_dai = 1; - codec->reg_cache_size = ARRAY_SIZE(wm8903->reg_cache); - codec->reg_cache = &wm8903->reg_cache[0]; - snd_soc_codec_set_drvdata(codec, wm8903); - codec->volatile_register = wm8903_volatile_register; init_completion(&wm8903->wseq); - - i2c_set_clientdata(i2c, codec); - codec->control_data = i2c; + codec->control_data = wm8903->control_data; ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C); if (ret != 0) { - dev_err(&i2c->dev, "Failed to set cache I/O: %d\n", ret); - goto err; + dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); + return ret; } val = snd_soc_read(codec, WM8903_SW_RESET_AND_ID); if (val != wm8903_reg_defaults[WM8903_SW_RESET_AND_ID]) { - dev_err(&i2c->dev, + dev_err(codec->dev, "Device with ID register %x is not a WM8903\n", val); return -ENODEV; } val = snd_soc_read(codec, WM8903_REVISION_NUMBER); - dev_info(&i2c->dev, "WM8903 revision %d\n", + dev_info(codec->dev, "WM8903 revision %d\n", val & WM8903_CHIP_REV_MASK); wm8903_reset(codec); @@ -1721,7 +1681,7 @@ static __devinit int wm8903_i2c_probe(struct i2c_client *i2c, wm8903->mic_delay = pdata->micdet_delay; } - if (i2c->irq) { + if (wm8903->irq) { if (pdata && pdata->irq_active_low) { trigger = IRQF_TRIGGER_LOW; irq_pol = WM8903_IRQ_POL; @@ -1733,13 +1693,13 @@ static __devinit int wm8903_i2c_probe(struct i2c_client *i2c, snd_soc_update_bits(codec, WM8903_INTERRUPT_CONTROL, WM8903_IRQ_POL, irq_pol); - ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq, + ret = request_threaded_irq(wm8903->irq, NULL, wm8903_irq, trigger | IRQF_ONESHOT, - "wm8903", wm8903); + "wm8903", codec); if (ret != 0) { - dev_err(&i2c->dev, "Failed to request IRQ: %d\n", + dev_err(codec->dev, "Failed to request IRQ: %d\n", ret); - goto err; + return ret; } /* Enable write sequencer interrupts */ @@ -1781,133 +1741,97 @@ static __devinit int wm8903_i2c_probe(struct i2c_client *i2c, val |= WM8903_DAC_MUTEMODE; snd_soc_write(codec, WM8903_DAC_DIGITAL_1, val); - wm8903_dai.dev = &i2c->dev; - wm8903_codec = codec; - - ret = snd_soc_register_codec(codec); - if (ret != 0) { - dev_err(&i2c->dev, "Failed to register codec: %d\n", ret); - goto err_irq; - } - - ret = snd_soc_register_dai(&wm8903_dai); - if (ret != 0) { - dev_err(&i2c->dev, "Failed to register DAI: %d\n", ret); - goto err_codec; - } - - return ret; + snd_soc_add_controls(codec, wm8903_snd_controls, + ARRAY_SIZE(wm8903_snd_controls)); + wm8903_add_widgets(codec); -err_codec: - snd_soc_unregister_codec(codec); -err_irq: - if (i2c->irq) - free_irq(i2c->irq, wm8903); -err: - wm8903_codec = NULL; - kfree(wm8903); return ret; } -static __devexit int wm8903_i2c_remove(struct i2c_client *client) +/* power down chip */ +static int wm8903_remove(struct snd_soc_codec *codec) { - struct snd_soc_codec *codec = i2c_get_clientdata(client); - struct wm8903_priv *priv = snd_soc_codec_get_drvdata(codec); + wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF); + return 0; +} - snd_soc_unregister_dai(&wm8903_dai); - snd_soc_unregister_codec(codec); +static struct snd_soc_codec_driver soc_codec_dev_wm8903 = { + .probe = wm8903_probe, + .remove = wm8903_remove, + .suspend = wm8903_suspend, + .resume = wm8903_resume, + .set_bias_level = wm8903_set_bias_level, + .reg_cache_size = ARRAY_SIZE(wm8903_reg_defaults), + .reg_word_size = sizeof(u16), + .reg_cache_default = wm8903_reg_defaults, + .volatile_register = wm8903_volatile_register, +}; - wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF); +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +static __devinit int wm8903_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct wm8903_priv *wm8903; + int ret; - if (client->irq) - free_irq(client->irq, priv); + wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL); + if (wm8903 == NULL) + return -ENOMEM; - kfree(priv); + i2c_set_clientdata(i2c, wm8903); + wm8903->control_data = i2c; + wm8903->irq = i2c->irq; - wm8903_codec = NULL; - wm8903_dai.dev = NULL; + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm8903, &wm8903_dai, 1); + if (ret < 0) + kfree(wm8903); + return ret; +} +static __devexit int wm8903_i2c_remove(struct i2c_client *client) +{ + snd_soc_unregister_codec(&client->dev); + kfree(i2c_get_clientdata(client)); return 0; } -/* i2c codec control layer */ static const struct i2c_device_id wm8903_i2c_id[] = { - { "wm8903", 0 }, - { } + { "wm8903", 0 }, + { } }; MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id); static struct i2c_driver wm8903_i2c_driver = { .driver = { - .name = "WM8903", + .name = "wm8903-codec", .owner = THIS_MODULE, }, - .probe = wm8903_i2c_probe, - .remove = __devexit_p(wm8903_i2c_remove), + .probe = wm8903_i2c_probe, + .remove = __devexit_p(wm8903_i2c_remove), .id_table = wm8903_i2c_id, }; +#endif -static int wm8903_probe(struct platform_device *pdev) +static int __init wm8903_modinit(void) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); int ret = 0; - - if (!wm8903_codec) { - dev_err(&pdev->dev, "I2C device not yet probed\n"); - goto err; - } - - socdev->card->codec = wm8903_codec; - - /* register pcms */ - ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); - if (ret < 0) { - dev_err(&pdev->dev, "failed to create pcms\n"); - goto err; +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + ret = i2c_add_driver(&wm8903_i2c_driver); + if (ret != 0) { + printk(KERN_ERR "Failed to register wm8903 I2C driver: %d\n", + ret); } - - snd_soc_add_controls(socdev->card->codec, wm8903_snd_controls, - ARRAY_SIZE(wm8903_snd_controls)); - wm8903_add_widgets(socdev->card->codec); - +#endif return ret; - -err: - return ret; -} - -/* power down chip */ -static int wm8903_remove(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - - if (codec->control_data) - wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF); - - snd_soc_free_pcms(socdev); - snd_soc_dapm_free(socdev); - - return 0; -} - -struct snd_soc_codec_device soc_codec_dev_wm8903 = { - .probe = wm8903_probe, - .remove = wm8903_remove, - .suspend = wm8903_suspend, - .resume = wm8903_resume, -}; -EXPORT_SYMBOL_GPL(soc_codec_dev_wm8903); - -static int __init wm8903_modinit(void) -{ - return i2c_add_driver(&wm8903_i2c_driver); } module_init(wm8903_modinit); static void __exit wm8903_exit(void) { +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) i2c_del_driver(&wm8903_i2c_driver); +#endif } module_exit(wm8903_exit); |