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/* Copyright (c) 2012 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.
*
* TI TSU6721 USB port switch.
*/
#ifndef TSU6721_H
#define TSU6721_H
#define TSU6721_REG_DEV_ID 0x01
#define TSU6721_REG_CONTROL 0x02
#define TSU6721_REG_INT1 0x03
#define TSU6721_REG_INT2 0x04
#define TSU6721_REG_INT_MASK1 0x05
#define TSU6721_REG_INT_MASK2 0x06
#define TSU6721_REG_ADC 0x07
#define TSU6721_REG_TIMING1 0x08
#define TSU6721_REG_TIMING2 0x09
#define TSU6721_REG_DEV_TYPE1 0x0A
#define TSU6721_REG_DEV_TYPE2 0x0B
#define TSU6721_REG_BUTTON1 0x0C
#define TSU6721_REG_BUTTON2 0x0D
#define TSU6721_REG_MANUAL1 0x13
#define TSU6721_REG_MANUAL2 0x14
#define TSU6721_REG_DEV_TYPE3 0x15
#define TSU6721_REG_RESET 0x1B
#define TSU6721_REG_TIMER 0x20
#define TSU6721_REG_OCP1 0x21
#define TSU6721_REG_OCP2 0x22
#define TSU6721_CTRL_AUTO (1 << 2)
enum tsu6721_mux {
TSU6721_MUX_AUTO = 0x00,
TSU6721_MUX_USB = 0x24,
TSU6721_MUX_AUDIO = 0x48,
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_JIG_UART_ON 0x000400
#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. */
int tsu6721_init(void);
/* Read TSU6721 register. */
uint8_t tsu6721_read(uint8_t reg);
/* Write TSU6721 register. */
int tsu6721_write(uint8_t reg, uint8_t val);
/* Enable interrupts. */
int tsu6721_enable_interrupts(void);
/* Disable all interrupts. */
int tsu6721_disable_interrupts(void);
/* Set interrupt mask. */
int tsu6721_set_interrupt_mask(uint16_t mask);
/* Get and clear current interrupt status. Return value is a combination of
* TSU6721_INT_* */
int tsu6721_get_interrupts(void);
/* Get but keep interrupt status. Return value is a combination of
* TSU6721_INT_* */
int tsu6721_peek_interrupts(void);
/* Get attached device type. Return value is one or a combination of
* TSU6721_TYPE_* */
int tsu6721_get_device_type(void);
/* Control TSU6721 mux. */
int tsu6721_mux(enum tsu6721_mux sel);
/* Reset TSU6721. */
void tsu6721_reset(void);
#endif /* TSU6721_H */
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