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/* Copyright (c) 2014 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.
*
* Pericom PI3USB9281 USB port switch.
*/
#ifndef PI3USB9281_H
#define PI3USB9281_H
#define PI3USB9281_REG_DEV_ID 0x01
#define PI3USB9281_REG_CONTROL 0x02
#define PI3USB9281_REG_INT 0x03
#define PI3USB9281_REG_INT_MASK 0x05
#define PI3USB9281_REG_DEV_TYPE 0x0a
#define PI3USB9281_REG_CHG_STATUS 0x0e
#define PI3USB9281_REG_MANUAL 0x13
#define PI3USB9281_REG_RESET 0x1b
#define PI3USB9281_REG_VBUS 0x1d
#define PI3USB9281_CTRL_INT_MASK (1 << 0)
#define PI3USB9281_CTRL_AUTO (1 << 2)
#define PI3USB9281_CTRL_SWITCH_AUTO (1 << 4)
#define PI3USB9281_PIN_MANUAL_VBUS (3 << 0)
#define PI3USB9281_PIN_MANUAL_DP (1 << 2)
#define PI3USB9281_PIN_MANUAL_DM (1 << 5)
#define PI3USB9281_INT_ATTACH (1 << 0)
#define PI3USB9281_INT_DETACH (1 << 1)
#define PI3USB9281_INT_OVP (1 << 5)
#define PI3USB9281_INT_OCP (1 << 6)
#define PI3USB9281_INT_OVP_OC (1 << 7)
#define PI3USB9281_TYPE_NONE 0
#define PI3USB9281_TYPE_MHL (1 << 0)
#define PI3USB9281_TYPE_OTG (1 << 1)
#define PI3USB9281_TYPE_SDP (1 << 2)
#define PI3USB9281_TYPE_CAR (1 << 4)
#define PI3USB9281_TYPE_CDP (1 << 5)
#define PI3USB9281_TYPE_DCP (1 << 6)
#define PI3USB9281_CHG_NONE 0
#define PI3USB9281_CHG_CAR_TYPE1 (1 << 1)
#define PI3USB9281_CHG_CAR_TYPE2 (3 << 0)
#define PI3USB9281_CHG_APPLE_1A (1 << 2)
#define PI3USB9281_CHG_APPLE_2A (1 << 3)
#define PI3USB9281_CHG_APPLE_2_4A (1 << 4)
/* Check if charge status has any connection */
#define PI3USB9281_CHG_STATUS_ANY(x) (((x) & 0x1f) > 1)
/* Read PI3USB9281 register. */
uint8_t pi3usb9281_read(uint8_t chip_idx, uint8_t reg);
/* Write PI3USB9281 register. */
int pi3usb9281_write(uint8_t chip_idx, uint8_t reg, uint8_t val);
/* Enable interrupts. */
int pi3usb9281_enable_interrupts(uint8_t chip_idx);
/* Disable all interrupts. */
int pi3usb9281_disable_interrupts(uint8_t chip_idx);
/* Set interrupt mask. */
int pi3usb9281_set_interrupt_mask(uint8_t chip_idx, uint8_t mask);
/* Get and clear current interrupt status. */
int pi3usb9281_get_interrupts(uint8_t chip_idx);
/* Get but keep interrupt status. */
int pi3usb9281_peek_interrupts(uint8_t chip_idx);
/* Get attached device type. */
int pi3usb9281_get_device_type(uint8_t chip_idx);
/* Get attached charger status. */
int pi3usb9281_get_charger_status(uint8_t chip_idx);
/* Get charger current limit based on device type and charger status. */
int pi3usb9281_get_ilim(int device_type, int charger_status);
/* Set switch configuration to manual. */
int pi3usb9281_set_switch_manual(uint8_t chip_idx, int val);
/* Set bits to enable pins in manual switch register */
int pi3usb9281_set_pins(uint8_t chip_idx, uint8_t mask);
/* Reset PI3USB9281. */
int pi3usb9281_reset(uint8_t chip_idx);
#endif /* PI3USB9281_H */
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