sound/soc/codecs/ts3a227e.c

Source file repositories/reference/linux-study-clean/sound/soc/codecs/ts3a227e.c

File Facts

System
Linux kernel
Corpus path
sound/soc/codecs/ts3a227e.c
Extension
.c
Size
12444 bytes
Lines
462
Domain
Driver Families
Bucket
sound/soc
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct ts3a227e {
	struct device *dev;
	struct regmap *regmap;
	struct snd_soc_jack *jack;
	bool plugged;
	bool mic_present;
	unsigned int buttons_held;
	int irq;
};

/* Button values to be reported on the jack */
static const int ts3a227e_buttons[] = {
	SND_JACK_BTN_0,
	SND_JACK_BTN_1,
	SND_JACK_BTN_2,
	SND_JACK_BTN_3,
};

#define TS3A227E_NUM_BUTTONS 4
#define TS3A227E_JACK_MASK (SND_JACK_HEADPHONE | \
			    SND_JACK_MICROPHONE | \
			    SND_JACK_BTN_0 | \
			    SND_JACK_BTN_1 | \
			    SND_JACK_BTN_2 | \
			    SND_JACK_BTN_3)

/* TS3A227E registers */
#define TS3A227E_REG_DEVICE_ID		0x00
#define TS3A227E_REG_INTERRUPT		0x01
#define TS3A227E_REG_KP_INTERRUPT	0x02
#define TS3A227E_REG_INTERRUPT_DISABLE	0x03
#define TS3A227E_REG_SETTING_1		0x04
#define TS3A227E_REG_SETTING_2		0x05
#define TS3A227E_REG_SETTING_3		0x06
#define TS3A227E_REG_SWITCH_CONTROL_1	0x07
#define TS3A227E_REG_SWITCH_CONTROL_2	0x08
#define TS3A227E_REG_SWITCH_STATUS_1	0x09
#define TS3A227E_REG_SWITCH_STATUS_2	0x0a
#define TS3A227E_REG_ACCESSORY_STATUS	0x0b
#define TS3A227E_REG_ADC_OUTPUT		0x0c
#define TS3A227E_REG_KP_THRESHOLD_1	0x0d
#define TS3A227E_REG_KP_THRESHOLD_2	0x0e
#define TS3A227E_REG_KP_THRESHOLD_3	0x0f

/* TS3A227E_REG_INTERRUPT 0x01 */
#define INS_REM_EVENT 0x01
#define DETECTION_COMPLETE_EVENT 0x02

/* TS3A227E_REG_KP_INTERRUPT 0x02 */
#define PRESS_MASK(idx) (0x01 << (2 * (idx)))
#define RELEASE_MASK(idx) (0x02 << (2 * (idx)))

/* TS3A227E_REG_INTERRUPT_DISABLE 0x03 */
#define INS_REM_INT_DISABLE 0x01
#define DETECTION_COMPLETE_INT_DISABLE 0x02
#define ADC_COMPLETE_INT_DISABLE 0x04
#define INTB_DISABLE 0x08

/* TS3A227E_REG_SETTING_1 0x4 */
#define DEBOUNCE_INSERTION_SETTING_SFT (0)
#define DEBOUNCE_INSERTION_SETTING_MASK (0x7 << DEBOUNCE_PRESS_SETTING_SFT)

/* TS3A227E_REG_SETTING_2 0x05 */
#define KP_ENABLE 0x04

/* TS3A227E_REG_SETTING_3 0x06 */
#define MICBIAS_SETTING_SFT 3
#define MICBIAS_SETTING_MASK (0x7 << MICBIAS_SETTING_SFT)
#define DEBOUNCE_RELEASE_SETTING_SFT 2
#define DEBOUNCE_RELEASE_SETTING_MASK (0x1 << DEBOUNCE_RELEASE_SETTING_SFT)
#define DEBOUNCE_PRESS_SETTING_SFT 0
#define DEBOUNCE_PRESS_SETTING_MASK (0x3 << DEBOUNCE_PRESS_SETTING_SFT)

/* TS3A227E_REG_ACCESSORY_STATUS  0x0b */
#define TYPE_3_POLE 0x01
#define TYPE_4_POLE_OMTP 0x02
#define TYPE_4_POLE_STANDARD 0x04
#define JACK_INSERTED 0x08
#define EITHER_MIC_MASK (TYPE_4_POLE_OMTP | TYPE_4_POLE_STANDARD)

static const struct reg_default ts3a227e_reg_defaults[] = {
	{ TS3A227E_REG_DEVICE_ID, 0x10 },
	{ TS3A227E_REG_INTERRUPT, 0x00 },
	{ TS3A227E_REG_KP_INTERRUPT, 0x00 },
	{ TS3A227E_REG_INTERRUPT_DISABLE, 0x08 },
	{ TS3A227E_REG_SETTING_1, 0x23 },
	{ TS3A227E_REG_SETTING_2, 0x00 },
	{ TS3A227E_REG_SETTING_3, 0x0e },
	{ TS3A227E_REG_SWITCH_CONTROL_1, 0x00 },
	{ TS3A227E_REG_SWITCH_CONTROL_2, 0x00 },

Annotation

Implementation Notes