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
|
/*
* libqos fw_cfg support
*
* Copyright IBM, Corp. 2012-2013
* Copyright (C) 2013 Red Hat Inc.
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
* Markus Armbruster <armbru@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include <glib.h>
#include "libqos/fw_cfg.h"
#include "libqtest.h"
#include "qemu/bswap.h"
void qfw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
{
fw_cfg->select(fw_cfg, key);
}
void qfw_cfg_read_data(QFWCFG *fw_cfg, void *data, size_t len)
{
fw_cfg->read(fw_cfg, data, len);
}
void qfw_cfg_get(QFWCFG *fw_cfg, uint16_t key, void *data, size_t len)
{
qfw_cfg_select(fw_cfg, key);
qfw_cfg_read_data(fw_cfg, data, len);
}
uint16_t qfw_cfg_get_u16(QFWCFG *fw_cfg, uint16_t key)
{
uint16_t value;
qfw_cfg_get(fw_cfg, key, &value, sizeof(value));
return le16_to_cpu(value);
}
uint32_t qfw_cfg_get_u32(QFWCFG *fw_cfg, uint16_t key)
{
uint32_t value;
qfw_cfg_get(fw_cfg, key, &value, sizeof(value));
return le32_to_cpu(value);
}
uint64_t qfw_cfg_get_u64(QFWCFG *fw_cfg, uint16_t key)
{
uint64_t value;
qfw_cfg_get(fw_cfg, key, &value, sizeof(value));
return le64_to_cpu(value);
}
static void mm_fw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
{
writew(fw_cfg->base, key);
}
static void mm_fw_cfg_read(QFWCFG *fw_cfg, void *data, size_t len)
{
uint8_t *ptr = data;
int i;
for (i = 0; i < len; i++) {
ptr[i] = readb(fw_cfg->base + 2);
}
}
QFWCFG *mm_fw_cfg_init(uint64_t base)
{
QFWCFG *fw_cfg = g_malloc0(sizeof(*fw_cfg));
fw_cfg->base = base;
fw_cfg->select = mm_fw_cfg_select;
fw_cfg->read = mm_fw_cfg_read;
return fw_cfg;
}
static void io_fw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
{
outw(fw_cfg->base, key);
}
static void io_fw_cfg_read(QFWCFG *fw_cfg, void *data, size_t len)
{
uint8_t *ptr = data;
int i;
for (i = 0; i < len; i++) {
ptr[i] = inb(fw_cfg->base + 1);
}
}
QFWCFG *io_fw_cfg_init(uint16_t base)
{
QFWCFG *fw_cfg = g_malloc0(sizeof(*fw_cfg));
fw_cfg->base = base;
fw_cfg->select = io_fw_cfg_select;
fw_cfg->read = io_fw_cfg_read;
return fw_cfg;
}
|
