115 lines
4.0 KiB
C
115 lines
4.0 KiB
C
|
/* Copyright 2017 The Chromium OS Authors. All rights reserved.
|
||
|
|
* Use of this source code is governed by a BSD-style license that can be
|
||
|
|
* found in the LICENSE file.
|
||
|
|
*
|
||
|
|
* Parade PS874X USB Type-C Redriving Switch for USB Host / DisplayPort.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __CROS_EC_PS874X_H
|
||
|
|
#define __CROS_EC_PS874X_H
|
||
|
|
|
||
|
|
/* Mode register for setting mux */
|
||
|
|
#define PS874X_REG_MODE 0x00
|
||
|
|
#ifdef CONFIG_USB_MUX_PS8740
|
||
|
|
#define PS874X_MODE_POLARITY_INVERTED BIT(4)
|
||
|
|
#define PS874X_MODE_USB_ENABLED BIT(5)
|
||
|
|
#define PS874X_MODE_DP_ENABLED BIT(6)
|
||
|
|
#define PS874X_MODE_POWER_DOWN BIT(7)
|
||
|
|
#elif defined(CONFIG_USB_MUX_PS8743)
|
||
|
|
#define PS874X_MODE_POLARITY_INVERTED BIT(2)
|
||
|
|
#define PS874X_MODE_FLIP_PIN_ENABLED BIT(3)
|
||
|
|
#define PS874X_MODE_USB_ENABLED BIT(4)
|
||
|
|
#define PS874X_MODE_CE_USB_ENABLED BIT(5)
|
||
|
|
#define PS874X_MODE_DP_ENABLED BIT(6)
|
||
|
|
#define PS874X_MODE_CE_DP_ENABLED BIT(7)
|
||
|
|
/* To reset the state machine to default */
|
||
|
|
#define PS874X_MODE_POWER_DOWN (PS874X_MODE_CE_USB_ENABLED | \
|
||
|
|
PS874X_MODE_CE_DP_ENABLED)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Status register for checking mux state */
|
||
|
|
#define PS874X_REG_STATUS 0x09
|
||
|
|
#define PS874X_STATUS_POLARITY_INVERTED BIT(2)
|
||
|
|
#define PS874X_STATUS_USB_ENABLED BIT(3)
|
||
|
|
#define PS874X_STATUS_DP_ENABLED BIT(4)
|
||
|
|
#define PS874X_STATUS_HPD_ASSERTED BIT(7)
|
||
|
|
|
||
|
|
/* Chip ID / revision registers and expected fused values */
|
||
|
|
#define PS874X_REG_REVISION_ID1 0xf0
|
||
|
|
#define PS874X_REG_REVISION_ID2 0xf1
|
||
|
|
#define PS874X_REG_CHIP_ID1 0xf2
|
||
|
|
#define PS874X_REG_CHIP_ID2 0xf3
|
||
|
|
#ifdef CONFIG_USB_MUX_PS8740
|
||
|
|
#define PS874X_REVISION_ID1 0x00
|
||
|
|
#define PS874X_REVISION_ID2 0x0a
|
||
|
|
#define PS874X_CHIP_ID1 0x40
|
||
|
|
#elif defined(CONFIG_USB_MUX_PS8743)
|
||
|
|
#define PS874X_REVISION_ID1_0 0x00
|
||
|
|
#define PS874X_REVISION_ID1_1 0x01
|
||
|
|
#define PS874X_REVISION_ID2 0x0b
|
||
|
|
#define PS874X_CHIP_ID1 0x41
|
||
|
|
#endif
|
||
|
|
#define PS874X_CHIP_ID2 0x87
|
||
|
|
|
||
|
|
/* USB equalization settings for Host to Mux */
|
||
|
|
#define PS874X_REG_USB_EQ_TX 0x32
|
||
|
|
#ifdef CONFIG_USB_MUX_PS8740
|
||
|
|
#define PS874X_USB_EQ_TX_10_1_DB 0x00
|
||
|
|
#define PS874X_USB_EQ_TX_14_3_DB 0x20
|
||
|
|
#define PS874X_USB_EQ_TX_8_5_DB 0x40
|
||
|
|
#define PS874X_USB_EQ_TX_6_5_DB 0x60
|
||
|
|
#define PS874X_USB_EQ_TX_11_5_DB 0x80
|
||
|
|
#define PS874X_USB_EQ_TX_9_5_DB 0xc0
|
||
|
|
#define PS874X_USB_EQ_TX_7_5_DB 0xe0
|
||
|
|
#define PS874X_USB_EQ_TERM_100_OHM (0 << 2)
|
||
|
|
#define PS874X_USB_EQ_TERM_85_OHM BIT(2)
|
||
|
|
#elif defined(CONFIG_USB_MUX_PS8743)
|
||
|
|
#define PS874X_USB_EQ_TX_12_8_DB 0x00
|
||
|
|
#define PS874X_USB_EQ_TX_17_DB 0x20
|
||
|
|
#define PS874X_USB_EQ_TX_7_7_DB 0x40
|
||
|
|
#define PS874X_USB_EQ_TX_3_6_DB 0x60
|
||
|
|
#define PS874X_USB_EQ_TX_15_DB 0x80
|
||
|
|
#define PS874X_USB_EQ_TX_10_9_DB 0xc0
|
||
|
|
#define PS874X_USB_EQ_TX_4_5_DB 0xe0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* USB equalization settings for Connector to Mux */
|
||
|
|
#define PS874X_REG_USB_EQ_RX 0x3b
|
||
|
|
#ifdef CONFIG_USB_MUX_PS8740
|
||
|
|
#define PS874X_USB_EQ_RX_4_4_DB 0x00
|
||
|
|
#define PS874X_USB_EQ_RX_7_0_DB 0x10
|
||
|
|
#define PS874X_USB_EQ_RX_8_2_DB 0x20
|
||
|
|
#define PS874X_USB_EQ_RX_9_4_DB 0x30
|
||
|
|
#define PS874X_USB_EQ_RX_10_2_DB 0x40
|
||
|
|
#define PS874X_USB_EQ_RX_11_4_DB 0x50
|
||
|
|
#define PS874X_USB_EQ_RX_14_3_DB 0x60
|
||
|
|
#define PS874X_USB_EQ_RX_14_8_DB 0x70
|
||
|
|
#define PS874X_USB_EQ_RX_15_2_DB 0x80
|
||
|
|
#define PS874X_USB_EQ_RX_15_5_DB 0x90
|
||
|
|
#define PS874X_USB_EQ_RX_16_2_DB 0xa0
|
||
|
|
#define PS874X_USB_EQ_RX_17_3_DB 0xb0
|
||
|
|
#define PS874X_USB_EQ_RX_18_4_DB 0xc0
|
||
|
|
#define PS874X_USB_EQ_RX_20_1_DB 0xd0
|
||
|
|
#define PS874X_USB_EQ_RX_21_3_DB 0xe0
|
||
|
|
#elif defined(CONFIG_USB_MUX_PS8743)
|
||
|
|
#define PS874X_USB_EQ_RX_2_4_DB 0x00
|
||
|
|
#define PS874X_USB_EQ_RX_5_DB 0x10
|
||
|
|
#define PS874X_USB_EQ_RX_6_5_DB 0x20
|
||
|
|
#define PS874X_USB_EQ_RX_7_4_DB 0x30
|
||
|
|
#define PS874X_USB_EQ_RX_8_7_DB 0x40
|
||
|
|
#define PS874X_USB_EQ_RX_10_9_DB 0x50
|
||
|
|
#define PS874X_USB_EQ_RX_12_8_DB 0x60
|
||
|
|
#define PS874X_USB_EQ_RX_13_8_DB 0x70
|
||
|
|
#define PS874X_USB_EQ_RX_14_8_DB 0x80
|
||
|
|
#define PS874X_USB_EQ_RX_15_4_DB 0x90
|
||
|
|
#define PS874X_USB_EQ_RX_16_0_DB 0xa0
|
||
|
|
#define PS874X_USB_EQ_RX_16_7_DB 0xb0
|
||
|
|
#define PS874X_USB_EQ_RX_18_8_DB 0xc0
|
||
|
|
#define PS874X_USB_EQ_RX_21_3_DB 0xd0
|
||
|
|
#define PS874X_USB_EQ_RX_22_2_DB 0xe0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int ps874x_tune_usb_eq(int i2c_addr, uint8_t tx, uint8_t rx);
|
||
|
|
|
||
|
|
#endif /* __CROS_EC_PS874X_H */
|