blob: d79b051504dac6c0133d756826acf8ee27262d59 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/* Copyright 2021 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.
*
* Public header for Intel Burnside Bridge - Thunderbolt/USB/DisplayPort Retimer
*/
#ifndef __CROS_EC_DRIVER_RETIMER_BB_RETIMER_PUBLIC_H
#define __CROS_EC_DRIVER_RETIMER_BB_RETIMER_PUBLIC_H
#include "usb_mux.h"
struct usb_mux;
/* Supported USB retimer drivers */
extern const struct usb_mux_driver bb_usb_retimer;
/* Retimer driver hardware specific controls */
struct bb_usb_control {
/* Load switch enable */
enum gpio_signal usb_ls_en_gpio;
/* Retimer reset */
enum gpio_signal retimer_rst_gpio;
};
#ifndef CONFIG_USBC_RETIMER_INTEL_BB_RUNTIME_CONFIG
extern const struct bb_usb_control bb_controls[];
#else
extern struct bb_usb_control bb_controls[];
#endif
/**
* Enable/disable the power state of BB retimer
*
* Define override function at board level if the platform specific changes
* are needed to enable/disable the power state of BB retimer.
*
* @param me Pointer to USB mux
* @param enable BB retimer power state to be changed
*
* @return EC_SUCCESS, or non-zero on error.
*/
__override_proto int bb_retimer_power_enable(const struct usb_mux *me,
bool enable);
/**
* Set HPD on the BB retimer
*
* Set the HPD related fields in the BB retimer
*
* @param[in] me Pointer to USB mux
* @param[in] mux_state USB mux state containing HPD level and IRQ
* @param[out] ack_required Outputs whether the given change will require
* the AP to ACK before proceeding
*/
void bb_retimer_hpd_update(const struct usb_mux *me, mux_state_t mux_state,
bool *ack_required);
#endif /* __CROS_EC_DRIVER_RETIMER_BB_RETIMER_PUBLIC_H */
|
