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
|
/*
* This file is part of the coreboot project.
*
* Copyright 2018 Google LLC
*
* 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/acpi_device.h>
#include <arch/acpi_pld.h>
#include <arch/acpigen.h>
#include <console/console.h>
#include <device/device.h>
#include <device/path.h>
#include <stdint.h>
#include <string.h>
#include "chip.h"
static void usb_acpi_fill_ssdt_generator(struct device *dev)
{
struct drivers_usb_acpi_config *config = dev->chip_info;
const char *path = acpi_device_path(dev);
if (!dev->enabled || !path || !config)
return;
/* Don't generate output for hubs, only ports */
if (config->type == UPC_TYPE_HUB)
return;
acpigen_write_scope(path);
if (config->desc)
acpigen_write_name_string("_DDN", config->desc);
acpigen_write_upc(config->type);
if (config->use_custom_pld) {
/* Use board defined PLD */
acpigen_write_pld(&config->custom_pld);
} else {
/* Fill PLD strucutre based on port type */
struct acpi_pld pld;
acpi_pld_fill_usb(&pld, config->type);
acpigen_write_pld(&pld);
}
acpigen_pop_len();
printk(BIOS_INFO, "%s: %s at %s\n", path,
config->desc ? : dev->chip_ops->name, dev_path(dev));
}
static struct device_operations usb_acpi_ops = {
.read_resources = DEVICE_NOOP,
.set_resources = DEVICE_NOOP,
.enable_resources = DEVICE_NOOP,
.scan_bus = &scan_usb_bus,
.acpi_fill_ssdt_generator = &usb_acpi_fill_ssdt_generator,
};
static void usb_acpi_enable(struct device *dev)
{
dev->ops = &usb_acpi_ops;
}
struct chip_operations drivers_usb_acpi_ops = {
CHIP_NAME("USB ACPI Device")
.enable_dev = &usb_acpi_enable
};
|
