diff options
| -rw-r--r-- | common/tsu6721.c | 41 | ||||
| -rw-r--r-- | include/tsu6721.h | 54 |
2 files changed, 88 insertions, 7 deletions
diff --git a/common/tsu6721.c b/common/tsu6721.c index babd9c862b..af562a579b 100644 --- a/common/tsu6721.c +++ b/common/tsu6721.c @@ -42,6 +42,33 @@ void tsu6721_write(uint8_t reg, uint8_t val) CPRINTF("[%T TSU6721 I2C write failed]\n"); } +void tsu6721_enable_interrupts(int mask) +{ + int ctrl = tsu6721_read(TSU6721_REG_CONTROL); + tsu6721_write(TSU6721_REG_INT_MASK1, (~mask) & 0xff); + tsu6721_write(TSU6721_REG_INT_MASK2, ((~mask) >> 8) & 0xff); + tsu6721_write(TSU6721_REG_CONTROL, ctrl & 0x1e); +} + +void tsu6721_disable_interrupt(void) +{ + int ctrl = tsu6721_read(TSU6721_REG_CONTROL); + tsu6721_write(TSU6721_REG_CONTROL, ctrl | 0x1); +} + +int tsu6721_get_interrupts(void) +{ + return (tsu6721_read(TSU6721_REG_INT1) << 8) | + (tsu6721_read(TSU6721_REG_INT2)); +} + +int tsu6721_get_device_type(void) +{ + return (tsu6721_read(TSU6721_REG_DEV_TYPE3) << 16) | + (tsu6721_read(TSU6721_REG_DEV_TYPE2) << 8) | + (tsu6721_read(TSU6721_REG_DEV_TYPE1)); +} + int tsu6721_mux(enum tsu6721_mux sel) { uint8_t id = tsu6721_read(TSU6721_REG_ADC); @@ -69,13 +96,7 @@ int tsu6721_mux(enum tsu6721_mux sel) return EC_SUCCESS; } -/* - * TODO(vpalatin): using the I2C early in the HOOK_INIT - * currently triggers all sort of badness, I need to debug - * this before re-activatin this initialization. - */ -#if 0 -static void tsu6721_init(void) +void tsu6721_init(void) { uint8_t settings; uint8_t dev_id = tsu6721_read(TSU6721_REG_DEV_ID); @@ -90,6 +111,12 @@ static void tsu6721_init(void) settings = (settings & ~0x38); tsu6721_write(TSU6721_REG_TIMER, settings); } +/* + * TODO(vpalatin): using the I2C early in the HOOK_INIT + * currently triggers all sort of badness, I need to debug + * this before re-activatin this initialization. + */ +#if 0 DECLARE_HOOK(HOOK_INIT, tsu6721_init, HOOK_PRIO_DEFAULT); #endif diff --git a/include/tsu6721.h b/include/tsu6721.h index cfd9c6aaee..e6be4555e1 100644 --- a/include/tsu6721.h +++ b/include/tsu6721.h @@ -38,7 +38,61 @@ enum tsu6721_mux { TSU6721_MUX_UART = 0x6C, }; +#define TSU6721_INT_ATTACH 0x0001 +#define TSU6721_INT_DETACH 0x0002 +#define TSU6721_INT_KP 0x0004 +#define TSU6721_INT_LKP 0x0008 +#define TSU6721_INT_LKR 0x0010 +#define TSU6721_INT_OVP_EN 0x0020 +#define TSU6721_INT_OCP_EN 0x0040 +#define TSU6721_INT_OVP_OCP_OTP_DIS 0x0080 +#define TSU6721_INT_AV_CHANGE 0x0100 +#define TSU6721_INT_RES_ATTACH 0x0200 +#define TSU6721_INT_ADC_CHANGE 0x0400 +#define TSU6721_INT_STUCK_KEY 0x0800 +#define TSU6721_INT_STUCK_KEY_RCV 0x1000 +#define TSU6721_INT_CONNECT 0x2000 +#define TSU6721_INT_OTP_EN 0x4000 +#define TSU6721_INT_VBUS 0x8000 + +#define TSU6721_TYPE_NONE 0x000000 +#define TSU6721_TYPE_OTG 0x000080 +#define TSU6721_TYPE_DCP 0x000040 +#define TSU6721_TYPE_CDP 0x000020 +#define TSU6721_TYPE_CHG12 0x000010 +#define TSU6721_TYPE_UART 0x000008 +#define TSU6721_TYPE_USB_HOST 0x000004 +#define TSU6721_TYPE_AUDIO2 0x000002 +#define TSU6721_TYPE_AUDIO1 0x000001 +#define TSU6721_TYPE_AUDIO3 0x008000 +#define TSU6721_TYPE_U200_CHG 0x400000 +#define TSU6721_TYPE_APPLE_CHG 0x200000 +#define TSU6721_TYPE_NON_STD_CHG 0x040000 +/* VBUS_DEBOUNCED might show up together with other type */ +#define TSU6721_TYPE_VBUS_DEBOUNCED 0x020000 + +/* Initialize TSU6721. */ +void tsu6721_init(void); + +/* Read TSU6721 register. */ uint8_t tsu6721_read(uint8_t reg); + +/* Write TSU6721 register. */ void tsu6721_write(uint8_t reg, uint8_t val); +/* Enable interrupt(s). The parameter 'mask' can be one or a combination of + * TSU6721_INT_* */ +void tsu6721_enable_interrupts(int mask); + +/* Disable all interrupts. */ +void tsu6721_disable_interrupts(void); + +/* Get and clear current interrupt status. Return value is a combination of + * TSU6721_INT_* */ +int tsu6721_get_interrupts(void); + +/* Get attached device type. Return value is one or a combination of + * TSU6721_TYPE_* */ +int tsu6721_get_device_type(void); + #endif /* TSU6721_H */ |