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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __ZEPHYR_SHIM_BB_RETIMER_USB_MUX_H
#define __ZEPHYR_SHIM_BB_RETIMER_USB_MUX_H
#include "driver/retimer/bb_retimer_public.h"
#define BB_RETIMER_USB_MUX_COMPAT intel_jhl8040r
#define USB_MUX_CONFIG_BB_RETIMER(mux_id) \
{ \
USB_MUX_COMMON_FIELDS(mux_id), \
.driver = &bb_usb_retimer, \
.hpd_update = bb_retimer_hpd_update, \
.i2c_port = I2C_PORT_BY_DEV(mux_id), \
.i2c_addr_flags = DT_REG_ADDR(mux_id), \
}
/**
* @brief Get reset gpio for @p mux_id retimer
*
* @param mux_id BB retimer DTS node
*/
#define BB_RETIMER_RESET_GPIO(mux_id) GPIO_SIGNAL(DT_PHANDLE(mux_id, reset_pin))
/**
* @brief Get LS_EN gpio for @p mux_id retimer
*
* @param mux_id BB retimer DTS node
*/
#define BB_RETIMER_LS_EN_GPIO(mux_id) \
COND_CODE_1(DT_NODE_HAS_PROP(mux_id, ls_en_pin), \
(GPIO_SIGNAL(DT_PHANDLE(mux_id, ls_en_pin))), \
(GPIO_UNIMPLEMENTED))
#define BB_RETIMER_CONTROLS_CONFIG(mux_id) \
{ \
.retimer_rst_gpio = BB_RETIMER_RESET_GPIO(mux_id), \
.usb_ls_en_gpio = BB_RETIMER_LS_EN_GPIO(mux_id), \
}
/**
* @brief Set entry in bb_controls array
*
* @param mux_id BB retimer node ID
*/
#define USB_MUX_BB_RETIMER_CONTROL_ARRAY(mux_id) \
[USB_MUX_PORT(mux_id)] = BB_RETIMER_CONTROLS_CONFIG(mux_id),
/**
* @brief Call USB_MUX_BB_RETIMER_CONTROL_ARRAY for every BB retimer in DTS
*/
#define USB_MUX_BB_RETIMERS_CONTROLS_ARRAY \
DT_FOREACH_STATUS_OKAY(BB_RETIMER_USB_MUX_COMPAT, \
USB_MUX_BB_RETIMER_CONTROL_ARRAY)
/**
* @brief Check if BB retimers @p id_1 and @p id_2 has matching configuration
* Configuration match if reset and ls_en pins are the same for muxes
* which are on the same USB-C port.
*
* @param id_1 First BB retimer DTS node
* @param id_2 Second BB retimer DTS node
*/
#define BB_RETIMER_CHECK_PAIR(id_1, id_2) \
BUILD_ASSERT(USB_MUX_PORT(id_1) != USB_MUX_PORT(id_2) || \
(BB_RETIMER_RESET_GPIO(id_1) == \
BB_RETIMER_RESET_GPIO(id_2) && \
BB_RETIMER_LS_EN_GPIO(id_1) == \
BB_RETIMER_LS_EN_GPIO(id_2)), \
"BB retimers " #id_1 " and " #id_2 " have different pin " \
"configuration and same USB-C port")
/**
* @brief Check if BB retimers with @p inst instance number has matching
* configuration with muxes of higher instance number on @p bb_list list.
* Configuration match if reset and ls_en pins are the same for muxes
* which are on the same USB-C port.
*
* @param inst Instance number of BB retimer mux
* @param bb_list List of BB retimers in instance number order
*/
#define BB_RETIMER_CHECK_INSTANCE_WITH_LIST(inst, bb_list) \
FOR_EACH_FIXED_ARG(BB_RETIMER_CHECK_PAIR, (;), \
DT_INST(inst, BB_RETIMER_USB_MUX_COMPAT), \
GET_ARGS_LESS_N(inst, __DEBRACKET bb_list))
/**
* @brief Check if BB retimers on the @p bb_list list have matching
* configurations (i.e. reset and ls_en pins are the same for muxes
* which are on the same USB-C port). This check is required, because
* USB_MUX_ENABLE_ALTERNATE() doesn't update bb_control[] array, so all
* BB retimers needs to use the same GPIO pins.
*
* @param bb_list List of BB retimers in instance number order
*/
#define BB_RETIMER_CHECK_SAME_CONTROLS(bb_list) \
LISTIFY(DT_NUM_INST_STATUS_OKAY(BB_RETIMER_USB_MUX_COMPAT), \
BB_RETIMER_CHECK_INSTANCE_WITH_LIST, (;), bb_list);
/** List of all BB retimers in DTS in instance number order */
#define BB_RETIMER_INSTANCES_LIST \
(LISTIFY(DT_NUM_INST_STATUS_OKAY(BB_RETIMER_USB_MUX_COMPAT), DT_INST, \
(, ), BB_RETIMER_USB_MUX_COMPAT))
#endif /* __ZEPHYR_SHIM_BB_RETIMER_USB_MUX_H */
|
