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
|
/*
* Copyright 2012-15 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: AMD
*
*/
#include <linux/slab.h>
#include "dm_services.h"
#include "include/gpio_interface.h"
#include "include/gpio_types.h"
#include "hw_gpio.h"
#include "hw_generic.h"
#include "reg_helper.h"
#include "generic_regs.h"
#undef FN
#define FN(reg_name, field_name) \
generic->shifts->field_name, generic->masks->field_name
#define CTX \
generic->base.base.ctx
#define REG(reg)\
(generic->regs->reg)
struct gpio;
static void dal_hw_generic_destruct(
struct hw_generic *pin)
{
dal_hw_gpio_destruct(&pin->base);
}
static void dal_hw_generic_destroy(
struct hw_gpio_pin **ptr)
{
struct hw_generic *generic = HW_GENERIC_FROM_BASE(*ptr);
dal_hw_generic_destruct(generic);
kfree(generic);
*ptr = NULL;
}
static enum gpio_result set_config(
struct hw_gpio_pin *ptr,
const struct gpio_config_data *config_data)
{
struct hw_generic *generic = HW_GENERIC_FROM_BASE(ptr);
if (!config_data)
return GPIO_RESULT_INVALID_DATA;
REG_UPDATE_2(mux,
GENERIC_EN, config_data->config.generic_mux.enable_output_from_mux,
GENERIC_SEL, config_data->config.generic_mux.mux_select);
return GPIO_RESULT_OK;
}
static const struct hw_gpio_pin_funcs funcs = {
.destroy = dal_hw_generic_destroy,
.open = dal_hw_gpio_open,
.get_value = dal_hw_gpio_get_value,
.set_value = dal_hw_gpio_set_value,
.set_config = set_config,
.change_mode = dal_hw_gpio_change_mode,
.close = dal_hw_gpio_close,
};
static void dal_hw_generic_construct(
struct hw_generic *pin,
enum gpio_id id,
uint32_t en,
struct dc_context *ctx)
{
dal_hw_gpio_construct(&pin->base, id, en, ctx);
pin->base.base.funcs = &funcs;
}
void dal_hw_generic_init(
struct hw_generic **hw_generic,
struct dc_context *ctx,
enum gpio_id id,
uint32_t en)
{
if (en > GPIO_DDC_LINE_MAX) {
ASSERT_CRITICAL(false);
*hw_generic = NULL;
}
*hw_generic = kzalloc(sizeof(struct hw_generic), GFP_KERNEL);
if (!*hw_generic) {
ASSERT_CRITICAL(false);
return;
}
dal_hw_generic_construct(*hw_generic, id, en, ctx);
}
struct hw_gpio_pin *dal_hw_generic_get_pin(struct gpio *gpio)
{
struct hw_generic *hw_generic = dal_gpio_get_generic(gpio);
return &hw_generic->base.base;
}
|
