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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/* 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.
*/
/* Crystaldrift board-specific USB-C mux configuration */
#include "console.h"
#include "cros_board_info.h"
#include "cros_cbi.h"
#include "driver/retimer/anx7483_public.h"
#include "hooks.h"
#include "ioexpander.h"
#include "usb_mux.h"
#include "usbc/usb_muxes.h"
#include <zephyr/drivers/gpio.h>
#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ##args)
#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ##args)
/*
* USB C0 (general) and C1 (just ANX DB) use IOEX pins to
* indicate flipped polarity to a protection switch.
*/
static int ioex_set_flip(int port, mux_state_t mux_state)
{
if (port == 0) {
if (mux_state & USB_PD_MUX_POLARITY_INVERTED)
gpio_pin_set_dt(
GPIO_DT_FROM_NODELABEL(ioex_usb_c0_sbu_flip),
1);
else
gpio_pin_set_dt(
GPIO_DT_FROM_NODELABEL(ioex_usb_c0_sbu_flip),
0);
} else {
if (mux_state & USB_PD_MUX_POLARITY_INVERTED)
gpio_pin_set_dt(
GPIO_DT_FROM_NODELABEL(ioex_usb_c1_sbu_flip),
1);
else
gpio_pin_set_dt(
GPIO_DT_FROM_NODELABEL(ioex_usb_c1_sbu_flip),
0);
}
return EC_SUCCESS;
}
int board_c0_amd_fp6_mux_set(const struct usb_mux *me, mux_state_t mux_state)
{
/* Set the SBU polarity mux */
RETURN_ERROR(ioex_set_flip(me->usb_port, mux_state));
return EC_SUCCESS;
}
int board_anx7483_c1_mux_set(const struct usb_mux *me, mux_state_t mux_state)
{
bool flipped = mux_state & USB_PD_MUX_POLARITY_INVERTED;
/* Set the SBU polarity mux */
RETURN_ERROR(ioex_set_flip(me->usb_port, mux_state));
/* Remove flipped from the state for easier compraisons */
mux_state = mux_state & ~USB_PD_MUX_POLARITY_INVERTED;
RETURN_ERROR(anx7483_set_default_tuning(me, mux_state));
if (mux_state == USB_PD_MUX_USB_ENABLED) {
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_URX1,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_URX2,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_DRX1,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_DRX2,
ANX7483_EQ_SETTING_12_5DB));
} else if (mux_state == USB_PD_MUX_DP_ENABLED) {
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_URX1,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_URX2,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_UTX1,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_UTX2,
ANX7483_EQ_SETTING_12_5DB));
} else if (mux_state == USB_PD_MUX_DOCK && !flipped) {
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_URX1,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_URX2,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_DRX1,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_UTX2,
ANX7483_EQ_SETTING_12_5DB));
} else if (mux_state == USB_PD_MUX_DOCK && flipped) {
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_URX1,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_URX2,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_UTX1,
ANX7483_EQ_SETTING_12_5DB));
RETURN_ERROR(anx7483_set_eq(me, ANX7483_PIN_DRX2,
ANX7483_EQ_SETTING_12_5DB));
}
return EC_SUCCESS;
}
int board_c1_ps8818_mux_set(const struct usb_mux *me, mux_state_t mux_state)
{
CPRINTSUSB("C1: PS8818 mux using default tuning");
/* Once a DP connection is established, we need to set IN_HPD */
if (mux_state & USB_PD_MUX_DP_ENABLED)
ioex_set_level(IOEX_USB_C1_HPD_IN_DB, 1);
else
ioex_set_level(IOEX_USB_C1_HPD_IN_DB, 0);
return 0;
}
static void setup_mux(void)
{
uint32_t val;
if (cros_cbi_get_fw_config(FW_IO_DB, &val) != 0)
CPRINTSUSB("Error finding FW_DB_IO in CBI FW_CONFIG");
/* Val will have our dts default on error, so continue setup */
if (val == FW_IO_DB_PS8811_PS8818) {
CPRINTSUSB("C1: Setting PS8818 mux");
USB_MUX_ENABLE_ALTERNATIVE(usb_mux_chain_ps8818_port1);
} else if (val == FW_IO_DB_NONE_ANX7483) {
CPRINTSUSB("C1: Setting ANX7483 mux");
} else {
CPRINTSUSB("Unexpected DB_IO board: %d", val);
}
}
DECLARE_HOOK(HOOK_INIT, setup_mux, HOOK_PRIO_INIT_I2C);
|
