NAUDINT interrupt line is provided by the TWL6030 codec to signal
externally events like headset plug/unplug, hook, power-up sequence
completion, etc.
Signed-off-by: Misael Lopez Cruz <x0052...@ti.com>
---
sound/soc/codecs/twl6030.c | 70 ++++++++++++++++++++++++++++++++++++++++---
sound/soc/codecs/twl6030.h | 14 +++++++++
2 files changed, 79 insertions(+), 5 deletions(-)
diff --git a/sound/soc/codecs/twl6030.c b/sound/soc/codecs/twl6030.c
index 8548442..56fe136 100644
--- a/sound/soc/codecs/twl6030.c
+++ b/sound/soc/codecs/twl6030.c
@@ -46,6 +46,7 @@
struct twl6030_data {
struct snd_soc_codec codec;
int audpwron;
+ int naudint;
int codec_powered;
int pll;
int non_lp;
@@ -61,7 +62,7 @@ static const u8 twl6030_reg[TWL6030_CACHEREGNUM] = {
0x4B, /* TWL6030_ASICID (ro) 0x01 */
0x00, /* TWL6030_ASICREV (ro) 0x02 */
0x00, /* TWL6030_INTID 0x03 */
- 0x7B, /* TWL6030_INTMR 0x04 */
+ 0x00, /* TWL6030_INTMR 0x04 */
0x00, /* TWL6030_NCPCTRL 0x05 */
0x00, /* TWL6030_LDOCTL 0x06 */
0x00, /* TWL6030_HPPLLCTL 0x07 */
@@ -367,6 +368,39 @@ static int twl6030_power_mode_event(struct
snd_soc_dapm_widget *w,
return 0;
}
+/* audio interrupt handler */
+static irqreturn_t twl6030_naudint_handler(int irq, void *data)
+{
+ struct snd_soc_codec *codec = data;
+ u8 intid;
+
+ twl_i2c_read_u8(TWL6030_MODULE_AUDIO, &intid, TWL6030_REG_INTID);
+
+ switch (intid) {
+ case TWL6030_THINT:
+ dev_alert(codec->dev, "die temp over-limit detection\n");
+ break;
+ case TWL6030_PLUGINT:
+ case TWL6030_UNPLUGINT:
+ case TWL6030_HOOKINT:
+ break;
+ case TWL6030_HFINT:
+ dev_alert(codec->dev, "hf drivers over current detection\n");
+ break;
+ case TWL6030_VIBINT:
+ dev_alert(codec->dev, "vib drivers over current detection\n");
+ break;
+ case TWL6030_READYINT:
+ dev_alert(codec->dev, "codec is ready\n");
+ break;
+ default:
+ dev_err(codec->dev, "unknown audio interrupt %d\n", intid);
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
/*
* MICATT volume control:
* from -6 to 0 dB in 6 dB steps
@@ -993,19 +1027,23 @@ static int __devinit twl6030_codec_probe(struct
platform_device *pdev)
struct twl_codec_data *twl_codec = pdev->dev.platform_data;
struct snd_soc_codec *codec;
struct twl6030_data *priv;
- int audpwron;
+ int audpwron, naudint;
int ret = 0;
priv = kzalloc(sizeof(struct twl6030_data), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
- if (twl_codec)
+ if (twl_codec) {
audpwron = twl_codec->audpwron_gpio;
- else
+ naudint = twl_codec->naudint_irq;
+ } else {
audpwron = -EINVAL;
+ naudint = 0;
+ }
priv->audpwron = audpwron;
+ priv->naudint = naudint;
codec = &priv->codec;
codec->dev = &pdev->dev;
@@ -1043,13 +1081,28 @@ static int __devinit twl6030_codec_probe(struct
platform_device *pdev)
priv->codec_powered = 0;
}
+ if (naudint) {
+ /* audio interrupt */
+ ret = request_threaded_irq(naudint, NULL,
+ twl6030_naudint_handler,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "twl6030_codec", codec);
+ if (ret)
+ goto gpio2_err;
+ } else {
+ dev_warn(codec->dev,
+ "no naudint irq, audio interrupts disabled\n");
+ twl6030_write_reg_cache(codec, TWL6030_REG_INTMR,
+ TWL6030_ALLINT_MSK);
+ }
+
/* init vio registers */
twl6030_init_vio_regs(codec);
/* power on device */
ret = twl6030_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
if (ret)
- goto gpio2_err;
+ goto irq_err;
ret = snd_soc_register_codec(codec);
if (ret)
@@ -1068,6 +1121,9 @@ dai_err:
twl6030_codec = NULL;
reg_err:
twl6030_set_bias_level(codec, SND_SOC_BIAS_OFF);
+irq_err:
+ if (naudint)
+ free_irq(naudint, codec);
gpio2_err:
if (gpio_is_valid(audpwron))
gpio_free(audpwron);
@@ -1082,10 +1138,14 @@ static int __devexit twl6030_codec_remove(struct
platform_device *pdev)
{
struct twl6030_data *priv = twl6030_codec->private_data;
int audpwron = priv->audpwron;
+ int naudint = priv->naudint;
if (gpio_is_valid(audpwron))
gpio_free(audpwron);
+ if (naudint)
+ free_irq(naudint, twl6030_codec);
+
snd_soc_unregister_dai(&twl6030_dai);
snd_soc_unregister_codec(twl6030_codec);
diff --git a/sound/soc/codecs/twl6030.h b/sound/soc/codecs/twl6030.h
index 87f1e1e..786fd80 100644
--- a/sound/soc/codecs/twl6030.h
+++ b/sound/soc/codecs/twl6030.h
@@ -67,6 +67,20 @@
#define TWL6030_VIOREGNUM 18
#define TWL6030_VDDREGNUM 21
+/* INTID (0x03) fields */
+
+#define TWL6030_THINT 0x01
+#define TWL6030_PLUGINT 0x02
+#define TWL6030_UNPLUGINT 0x04
+#define TWL6030_HOOKINT 0x08
+#define TWL6030_HFINT 0x10
+#define TWL6030_VIBINT 0x20
+#define TWL6030_READYINT 0x40
+
+/* INTMR (0x04) fields */
+
+#define TWL6030_ALLINT_MSK 0x7B
+
/* NCPCTL (0x05) fields */
#define TWL6030_NCPENA 0x01
--
1.5.4.3
--
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