Report the Jack events to the user space through ALSA. Also moves request_threaded_irq() to component_probe so it don't get interrupts before the initialization the struct snd_soc_jack.
Signed-off-by: Lucas Tanure tanureal@opensource.cirrus.com --- Changes in v2: - Don't move the code around - Removed rename component - Request IRQ moved back to main probe - cs42l42_component_remove removed as is not needed anymore
sound/soc/codecs/cs42l42.c | 70 ++++++++++++++++++++++++++++++-------- sound/soc/codecs/cs42l42.h | 3 ++ 2 files changed, 59 insertions(+), 14 deletions(-)
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 54dd942f3731e..db8c8f0121d12 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -522,10 +522,18 @@ static int cs42l42_component_probe(struct snd_soc_component *component) { struct cs42l42_private *cs42l42 = (struct cs42l42_private *)snd_soc_component_get_drvdata(component); + struct snd_soc_card *crd = component->card; + int ret = 0;
cs42l42->component = component;
- return 0; + ret = snd_soc_card_jack_new(crd, "CS42L42 Headset", SND_JACK_HEADSET | SND_JACK_BTN_0 | + SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3, + &cs42l42->jack, NULL, 0); + if (ret < 0) + dev_err(component->dev, "Cannot create CS42L42 Headset: %d\n", ret); + + return ret; }
static const struct snd_soc_component_driver soc_component_dev_cs42l42 = { @@ -1198,7 +1206,7 @@ static void cs42l42_cancel_hs_type_detect(struct cs42l42_private *cs42l42) (3 << CS42L42_HSDET_AUTO_TIME_SHIFT)); }
-static void cs42l42_handle_button_press(struct cs42l42_private *cs42l42) +static int cs42l42_handle_button_press(struct cs42l42_private *cs42l42) { int bias_level; unsigned int detect_status; @@ -1241,17 +1249,24 @@ static void cs42l42_handle_button_press(struct cs42l42_private *cs42l42)
switch (bias_level) { case 1: /* Function C button press */ + bias_level = SND_JACK_BTN_2; dev_dbg(cs42l42->component->dev, "Function C button press\n"); break; case 2: /* Function B button press */ + bias_level = SND_JACK_BTN_1; dev_dbg(cs42l42->component->dev, "Function B button press\n"); break; case 3: /* Function D button press */ + bias_level = SND_JACK_BTN_3; dev_dbg(cs42l42->component->dev, "Function D button press\n"); break; case 4: /* Function A button press */ + bias_level = SND_JACK_BTN_0; dev_dbg(cs42l42->component->dev, "Function A button press\n"); break; + default: + bias_level = 0; + break; }
/* Set button detect level sensitivity back to default */ @@ -1281,6 +1296,8 @@ static void cs42l42_handle_button_press(struct cs42l42_private *cs42l42) (0 << CS42L42_M_HSBIAS_HIZ_SHIFT) | (1 << CS42L42_M_SHORT_RLS_SHIFT) | (1 << CS42L42_M_SHORT_DET_SHIFT)); + + return bias_level; }
struct cs42l42_irq_params { @@ -1325,6 +1342,8 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data) unsigned int current_plug_status; unsigned int current_button_status; unsigned int i; + int report = 0; +
/* Read sticky registers to clear interurpt */ for (i = 0; i < ARRAY_SIZE(stickies); i++) { @@ -1351,9 +1370,20 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data) if ((~masks[5]) & irq_params_table[5].mask) { if (stickies[5] & CS42L42_HSDET_AUTO_DONE_MASK) { cs42l42_process_hs_type_detect(cs42l42); - dev_dbg(component->dev, - "Auto detect done (%d)\n", - cs42l42->hs_type); + switch(cs42l42->hs_type){ + case CS42L42_PLUG_CTIA: + case CS42L42_PLUG_OMTP: + snd_soc_jack_report(&cs42l42->jack, SND_JACK_HEADSET, + SND_JACK_HEADSET); + break; + case CS42L42_PLUG_HEADPHONE: + snd_soc_jack_report(&cs42l42->jack, SND_JACK_HEADPHONE, + SND_JACK_HEADPHONE); + break; + default: + break; + } + dev_dbg(component->dev, "Auto detect done (%d)\n", cs42l42->hs_type); } }
@@ -1371,8 +1401,19 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data) if (cs42l42->plug_state != CS42L42_TS_UNPLUG) { cs42l42->plug_state = CS42L42_TS_UNPLUG; cs42l42_cancel_hs_type_detect(cs42l42); - dev_dbg(component->dev, - "Unplug event\n"); + + switch(cs42l42->hs_type){ + case CS42L42_PLUG_CTIA: + case CS42L42_PLUG_OMTP: + snd_soc_jack_report(&cs42l42->jack, 0, SND_JACK_HEADSET); + break; + case CS42L42_PLUG_HEADPHONE: + snd_soc_jack_report(&cs42l42->jack, 0, SND_JACK_HEADPHONE); + break; + default: + break; + } + dev_dbg(component->dev, "Unplug event\n"); } break;
@@ -1387,14 +1428,15 @@ static irqreturn_t cs42l42_irq_thread(int irq, void *data) if (!(current_button_status & CS42L42_M_HSBIAS_HIZ_MASK)) {
- if (current_button_status & - CS42L42_M_DETECT_TF_MASK) { - dev_dbg(component->dev, - "Button released\n"); - } else if (current_button_status & - CS42L42_M_DETECT_FT_MASK) { - cs42l42_handle_button_press(cs42l42); + if (current_button_status & CS42L42_M_DETECT_TF_MASK) { + dev_dbg(component->dev, "Button released\n"); + report = 0; + } else if (current_button_status & CS42L42_M_DETECT_FT_MASK) { + report = cs42l42_handle_button_press(cs42l42); + } + snd_soc_jack_report(&cs42l42->jack, report, SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3); } }
diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h index c373259ed46f7..e12828877a20d 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -12,6 +12,8 @@ #ifndef __CS42L42_H__ #define __CS42L42_H__
+#include <sound/jack.h> + #define CS42L42_PAGE_REGISTER 0x00 /* Page Select Register */ #define CS42L42_WIN_START 0x00 #define CS42L42_WIN_LEN 0x100 @@ -768,6 +770,7 @@ struct cs42l42_private { struct regulator_bulk_data supplies[CS42L42_NUM_SUPPLIES]; struct gpio_desc *reset_gpio; struct completion pdn_done; + struct snd_soc_jack jack; u32 sclk; u32 srate; u8 plug_state;