blob: 9eb56c25ef8b1ab85b404a4fe94b54515239e777 (
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
60
61
62
63
64
65
66
67
|
/*
* This file is part of the coreboot project.
*
* Copyright 2016 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/acpigen_dsm.h>
#include <device/device.h>
#include <stdint.h>
#include <string.h>
#include "chip.h"
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
static void i2c_hid_fill_dsm(struct device *dev)
{
struct drivers_i2c_hid_config *config = dev->chip_info;
struct dsm_i2c_hid_config dsm_config = {
.hid_desc_reg_offset = config->hid_desc_reg_offset,
};
acpigen_write_dsm_i2c_hid(&dsm_config);
}
static void i2c_hid_fill_ssdt_generator(struct device *dev)
{
struct drivers_i2c_hid_config *config = dev->chip_info;
config->generic.cid = I2C_HID_CID;
i2c_generic_fill_ssdt(dev, &i2c_hid_fill_dsm, &config->generic);
}
static const char *i2c_hid_acpi_name(struct device *dev)
{
static char name[5];
snprintf(name, sizeof(name), "H%03.3X", dev->path.i2c.device);
name[4] = '\0';
return name;
}
#endif
static struct device_operations i2c_hid_ops = {
.read_resources = DEVICE_NOOP,
.set_resources = DEVICE_NOOP,
.enable_resources = DEVICE_NOOP,
#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
.acpi_name = &i2c_hid_acpi_name,
.acpi_fill_ssdt_generator = &i2c_hid_fill_ssdt_generator,
#endif
};
static void i2c_hid_enable(struct device *dev)
{
dev->ops = &i2c_hid_ops;
}
struct chip_operations drivers_i2c_hid_ops = {
CHIP_NAME("I2C HID Device")
.enable_dev = &i2c_hid_enable
};
|
