diff options
Diffstat (limited to 'driver/ps8740.h')
| -rw-r--r-- | driver/ps8740.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/driver/ps8740.h b/driver/ps8740.h index ec27a7bf50..94076e7921 100644 --- a/driver/ps8740.h +++ b/driver/ps8740.h @@ -32,4 +32,36 @@ #define PS8740_REG_CHIP_ID2 0xf3 #define PS8740_CHIP_ID2 0x87 +/* USB equalization settings for Host to Mux */ +#define PS8740_REG_USB_EQ_TX 0x32 +#define PS8740_USB_EQ_TX_10_1_DB 0x00 +#define PS8740_USB_EQ_TX_14_3_DB 0x20 +#define PS8740_USB_EQ_TX_8_5_DB 0x40 +#define PS8740_USB_EQ_TX_6_5_DB 0x60 +#define PS8740_USB_EQ_TX_11_5_DB 0x80 +#define PS8740_USB_EQ_TX_9_5_DB 0xc0 +#define PS8740_USB_EQ_TX_7_5_DB 0xe0 +#define PS8740_USB_EQ_TERM_100_OHM (0 << 2) +#define PS8740_USB_EQ_TERM_85_OHM (1 << 2) + +/* USB equalization settings for Connector to Mux */ +#define PS8740_REG_USB_EQ_RX 0x3b +#define PS8740_USB_EQ_RX_4_4_DB 0x00 +#define PS8740_USB_EQ_RX_7_0_DB 0x10 +#define PS8740_USB_EQ_RX_8_2_DB 0x20 +#define PS8740_USB_EQ_RX_9_4_DB 0x30 +#define PS8740_USB_EQ_RX_10_2_DB 0x40 +#define PS8740_USB_EQ_RX_11_4_DB 0x50 +#define PS8740_USB_EQ_RX_14_3_DB 0x60 +#define PS8740_USB_EQ_RX_14_8_DB 0x70 +#define PS8740_USB_EQ_RX_15_2_DB 0x80 +#define PS8740_USB_EQ_RX_15_5_DB 0x90 +#define PS8740_USB_EQ_RX_16_2_DB 0xa0 +#define PS8740_USB_EQ_RX_17_3_DB 0xb0 +#define PS8740_USB_EQ_RX_18_4_DB 0xc0 +#define PS8740_USB_EQ_RX_20_1_DB 0xd0 +#define PS8740_USB_EQ_RX_21_3_DB 0xe0 + +int ps8740_tune_usb_eq(int i2c_addr, uint8_t tx, uint8_t rx); + #endif /* __CROS_EC_PS8740_H */ |