pinctrl-sandbox.c
3.87 KB
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
143
144
145
146
147
/*
* Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
/* #define DEBUG */
#include <common.h>
#include <dm.h>
#include <dm/pinctrl.h>
static const char * const sandbox_pins[] = {
"SCL",
"SDA",
"TX",
"RX",
};
static const char * const sandbox_groups[] = {
"i2c",
"serial_a",
"serial_b",
"spi",
};
static const char * const sandbox_functions[] = {
"i2c",
"serial",
"spi",
};
static const struct pinconf_param sandbox_conf_params[] = {
{ "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
{ "bias-high-impedance", PIN_CONFIG_BIAS_HIGH_IMPEDANCE, 0 },
{ "bias-bus-hold", PIN_CONFIG_BIAS_BUS_HOLD, 0 },
{ "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
{ "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
{ "bias-pull-pin-default", PIN_CONFIG_BIAS_PULL_PIN_DEFAULT, 1 },
{ "drive-open-drain", PIN_CONFIG_DRIVE_OPEN_DRAIN, 0 },
{ "drive-open-source", PIN_CONFIG_DRIVE_OPEN_SOURCE, 0 },
{ "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 },
{ "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 },
{ "input-disable", PIN_CONFIG_INPUT_ENABLE, 0 },
};
static int sandbox_get_pins_count(struct udevice *dev)
{
return ARRAY_SIZE(sandbox_pins);
}
static const char *sandbox_get_pin_name(struct udevice *dev, unsigned selector)
{
return sandbox_pins[selector];
}
static int sandbox_get_groups_count(struct udevice *dev)
{
return ARRAY_SIZE(sandbox_groups);
}
static const char *sandbox_get_group_name(struct udevice *dev,
unsigned selector)
{
return sandbox_groups[selector];
}
static int sandbox_get_functions_count(struct udevice *dev)
{
return ARRAY_SIZE(sandbox_functions);
}
static const char *sandbox_get_function_name(struct udevice *dev,
unsigned selector)
{
return sandbox_functions[selector];
}
static int sandbox_pinmux_set(struct udevice *dev, unsigned pin_selector,
unsigned func_selector)
{
debug("sandbox pinmux: pin = %d (%s), function = %d (%s)\n",
pin_selector, sandbox_get_pin_name(dev, pin_selector),
func_selector, sandbox_get_function_name(dev, func_selector));
return 0;
}
static int sandbox_pinmux_group_set(struct udevice *dev,
unsigned group_selector,
unsigned func_selector)
{
debug("sandbox pinmux: group = %d (%s), function = %d (%s)\n",
group_selector, sandbox_get_group_name(dev, group_selector),
func_selector, sandbox_get_function_name(dev, func_selector));
return 0;
}
static int sandbox_pinconf_set(struct udevice *dev, unsigned pin_selector,
unsigned param, unsigned argument)
{
debug("sandbox pinconf: pin = %d (%s), param = %d, arg = %d\n",
pin_selector, sandbox_get_pin_name(dev, pin_selector),
param, argument);
return 0;
}
static int sandbox_pinconf_group_set(struct udevice *dev,
unsigned group_selector,
unsigned param, unsigned argument)
{
debug("sandbox pinconf: group = %d (%s), param = %d, arg = %d\n",
group_selector, sandbox_get_group_name(dev, group_selector),
param, argument);
return 0;
}
const struct pinctrl_ops sandbox_pinctrl_ops = {
.get_pins_count = sandbox_get_pins_count,
.get_pin_name = sandbox_get_pin_name,
.get_groups_count = sandbox_get_groups_count,
.get_group_name = sandbox_get_group_name,
.get_functions_count = sandbox_get_functions_count,
.get_function_name = sandbox_get_function_name,
.pinmux_set = sandbox_pinmux_set,
.pinmux_group_set = sandbox_pinmux_group_set,
.pinconf_num_params = ARRAY_SIZE(sandbox_conf_params),
.pinconf_params = sandbox_conf_params,
.pinconf_set = sandbox_pinconf_set,
.pinconf_group_set = sandbox_pinconf_group_set,
.set_state = pinctrl_generic_set_state,
};
static const struct udevice_id sandbox_pinctrl_match[] = {
{ .compatible = "sandbox,pinctrl" },
{ /* sentinel */ }
};
U_BOOT_DRIVER(sandbox_pinctrl) = {
.name = "sandbox_pinctrl",
.id = UCLASS_PINCTRL,
.of_match = sandbox_pinctrl_match,
.ops = &sandbox_pinctrl_ops,
};