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
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
* All rights reserved.
*
* File: baseband.c
*
* Purpose: Implement functions to access baseband
*
* Author: Yiching Chen
*
* Date: May 20, 2004
*
* Functions:
*
* Revision History:
*
*/
#include <linux/compiler.h>
#include "firmware.h"
#include "usbpipe.h"
#define FIRMWARE_VERSION 0x133 /* version 1.51 */
#define FIRMWARE_NAME "vntwusb.fw"
#define FIRMWARE_CHUNK_SIZE 0x400
int vnt_download_firmware(struct vnt_private *priv)
{
struct device *dev = &priv->usb->dev;
const struct firmware *fw;
void *buffer = NULL;
u16 length;
int ii;
int ret = 0;
dev_dbg(dev, "---->Download firmware\n");
ret = request_firmware(&fw, FIRMWARE_NAME, dev);
if (ret) {
dev_err(dev, "firmware file %s request failed (%d)\n",
FIRMWARE_NAME, ret);
goto end;
}
buffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
if (!buffer) {
ret = -ENOMEM;
goto free_fw;
}
for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
length = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);
memcpy(buffer, fw->data + ii, length);
ret = vnt_control_out(priv, 0, 0x1200 + ii, 0x0000, length,
buffer);
if (ret)
goto free_buffer;
dev_dbg(dev, "Download firmware...%d %zu\n", ii, fw->size);
}
free_buffer:
kfree(buffer);
free_fw:
release_firmware(fw);
end:
return ret;
}
MODULE_FIRMWARE(FIRMWARE_NAME);
int vnt_firmware_branch_to_sram(struct vnt_private *priv)
{
dev_dbg(&priv->usb->dev, "---->Branch to Sram\n");
return vnt_control_out(priv, 1, 0x1200, 0x0000, 0, NULL);
}
int vnt_check_firmware_version(struct vnt_private *priv)
{
int ret = 0;
ret = vnt_control_in(priv, MESSAGE_TYPE_READ, 0,
MESSAGE_REQUEST_VERSION, 2,
(u8 *)&priv->firmware_version);
if (ret) {
dev_dbg(&priv->usb->dev,
"Could not get firmware version: %d.\n", ret);
goto end;
}
dev_dbg(&priv->usb->dev, "Firmware Version [%04x]\n",
priv->firmware_version);
if (priv->firmware_version == 0xFFFF) {
dev_dbg(&priv->usb->dev, "In Loader.\n");
ret = -EINVAL;
goto end;
}
if (priv->firmware_version < FIRMWARE_VERSION) {
/* branch to loader for download new firmware */
ret = vnt_firmware_branch_to_sram(priv);
if (ret) {
dev_dbg(&priv->usb->dev,
"Could not branch to SRAM: %d.\n", ret);
} else {
ret = -EINVAL;
}
}
end:
return ret;
}
|
