Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- include/linux/mfd/wm8350/audio.h | 1 + sound/soc/codecs/wm8350.c | 116 ++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/wm8350.h | 8 +++ 3 files changed, 125 insertions(+), 0 deletions(-)
diff --git a/include/linux/mfd/wm8350/audio.h b/include/linux/mfd/wm8350/audio.h index af95a1d..d899dc0 100644 --- a/include/linux/mfd/wm8350/audio.h +++ b/include/linux/mfd/wm8350/audio.h @@ -490,6 +490,7 @@ /* * R231 (0xE7) - Jack Status */ +#define WM8350_JACK_L_LVL 0x0800 #define WM8350_JACK_R_LVL 0x0400
/* diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c index e3989d4..47a9dab 100644 --- a/sound/soc/codecs/wm8350.c +++ b/sound/soc/codecs/wm8350.c @@ -51,10 +51,17 @@ struct wm8350_output { u16 mute; };
+struct wm8350_jack_data { + struct snd_soc_jack *jack; + int report; +}; + struct wm8350_data { struct snd_soc_codec codec; struct wm8350_output out1; struct wm8350_output out2; + struct wm8350_jack_data hpl; + struct wm8350_jack_data hpr; struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; };
@@ -1328,6 +1335,95 @@ static int wm8350_resume(struct platform_device *pdev) return 0; }
+static void wm8350_hp_jack_handler(struct wm8350 *wm8350, int irq, void *data) +{ + struct wm8350_data *priv = data; + u16 reg; + int report; + int mask; + struct wm8350_jack_data *jack = NULL; + + switch (irq) { + case WM8350_IRQ_CODEC_JCK_DET_L: + jack = &priv->hpl; + mask = WM8350_JACK_L_LVL; + break; + + case WM8350_IRQ_CODEC_JCK_DET_R: + jack = &priv->hpr; + mask = WM8350_JACK_R_LVL; + break; + + default: + BUG(); + } + + if (!jack->jack) { + dev_warn(wm8350->dev, "Jack interrupt called with no jack\n"); + return; + } + + /* Debounce */ + msleep(200); + + reg = wm8350_reg_read(wm8350, WM8350_JACK_PIN_STATUS); + if (reg & mask) + report = jack->report; + else + report = 0; + + snd_soc_jack_report(jack->jack, report, jack->report); +} + +/** + * wm8350_hp_jack_detect - Enable headphone jack detection. + * + * @codec: WM8350 codec + * @which: left or right jack detect signal + * @jack: jack to report detection events on + * @report: value to report + * + * Enables the headphone jack detection of the WM8350. + */ +int wm8350_hp_jack_detect(struct snd_soc_codec *codec, enum wm8350_jack which, + struct snd_soc_jack *jack, int report) +{ + struct wm8350_data *priv = codec->private_data; + struct wm8350 *wm8350 = codec->control_data; + int irq; + int ena; + + switch (which) { + case WM8350_JDL: + priv->hpl.jack = jack; + priv->hpl.report = report; + irq = WM8350_IRQ_CODEC_JCK_DET_L; + ena = WM8350_JDL_ENA; + break; + + case WM8350_JDR: + priv->hpr.jack = jack; + priv->hpr.report = report; + irq = WM8350_IRQ_CODEC_JCK_DET_R; + ena = WM8350_JDR_ENA; + break; + + default: + return -EINVAL; + } + + wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA); + wm8350_set_bits(wm8350, WM8350_JACK_DETECT, ena); + + /* Sync status */ + wm8350_hp_jack_handler(wm8350, irq, priv); + + wm8350_unmask_irq(wm8350, irq); + + return 0; +} +EXPORT_SYMBOL_GPL(wm8350_hp_jack_detect); + static struct snd_soc_codec *wm8350_codec;
static int wm8350_probe(struct platform_device *pdev) @@ -1381,6 +1477,13 @@ static int wm8350_probe(struct platform_device *pdev) wm8350_set_bits(wm8350, WM8350_ROUT2_VOLUME, WM8350_OUT2_VU | WM8350_OUT2R_MUTE);
+ wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L); + wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R); + wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L, + wm8350_hp_jack_handler, priv); + wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R, + wm8350_hp_jack_handler, priv); + ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); if (ret < 0) { dev_err(&pdev->dev, "failed to create pcms\n"); @@ -1411,8 +1514,21 @@ static int wm8350_remove(struct platform_device *pdev) struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->codec; struct wm8350 *wm8350 = codec->control_data; + struct wm8350_data *priv = codec->private_data; int ret;
+ wm8350_clear_bits(wm8350, WM8350_JACK_DETECT, + WM8350_JDL_ENA | WM8350_JDR_ENA); + wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA); + + wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L); + wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R); + wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L); + wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R); + + priv->hpl.jack = NULL; + priv->hpr.jack = NULL; + /* cancel any work waiting to be queued. */ ret = cancel_delayed_work(&codec->delayed_work);
diff --git a/sound/soc/codecs/wm8350.h b/sound/soc/codecs/wm8350.h index cc2887a..d11bd92 100644 --- a/sound/soc/codecs/wm8350.h +++ b/sound/soc/codecs/wm8350.h @@ -17,4 +17,12 @@ extern struct snd_soc_dai wm8350_dai; extern struct snd_soc_codec_device soc_codec_dev_wm8350;
+enum wm8350_jack { + WM8350_JDL = 1, + WM8350_JDR = 2, +}; + +int wm8350_hp_jack_detect(struct snd_soc_codec *codec, enum wm8350_jack which, + struct snd_soc_jack *jack, int report); + #endif