tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 *
20 * File: baseband.c
21 *
22 * Purpose: Implement functions to access baseband
23 *
24 * Author: Yiching Chen
25 *
26 * Date: May 20, 2004
27 *
28 * Functions:
29 *
30 * Revision History:
31 *
32 */
33
34#include "firmware.h"
35#include "control.h"
36#include "rndis.h"
37
38static int msglevel = MSG_LEVEL_INFO;
39/* static int msglevel = MSG_LEVEL_DEBUG; */
40
41#define FIRMWARE_VERSION 0x133 /* version 1.51 */
42#define FIRMWARE_NAME "vntwusb.fw"
43
44#define FIRMWARE_CHUNK_SIZE 0x400
45
46int FIRMWAREbDownload(struct vnt_private *pDevice)
47{
48 struct device *dev = &pDevice->usb->dev;
49 const struct firmware *fw;
50 int NdisStatus;
51 void *pBuffer = NULL;
52 bool result = false;
53 u16 wLength;
54 int ii, rc;
55
56 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Download firmware\n");
57 spin_unlock_irq(&pDevice->lock);
58
59 rc = request_firmware(&fw, FIRMWARE_NAME, dev);
60 if (rc) {
61 dev_err(dev, "firmware file %s request failed (%d)\n",
62 FIRMWARE_NAME, rc);
63 goto out;
64 }
65
66 pBuffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
67 if (!pBuffer)
68 goto out;
69
70 for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
71 wLength = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);
72 memcpy(pBuffer, fw->data + ii, wLength);
73
74 NdisStatus = CONTROLnsRequestOutAsyn(pDevice,
75 0,
76 0x1200+ii,
77 0x0000,
78 wLength,
79 pBuffer);
80
81 DBG_PRT(MSG_LEVEL_DEBUG,
82 KERN_INFO"Download firmware...%d %zu\n", ii, fw->size);
83 if (NdisStatus != STATUS_SUCCESS)
84 goto free_fw;
85 }
86
87 result = true;
88free_fw:
89 release_firmware(fw);
90
91out:
92 kfree(pBuffer);
93
94 spin_lock_irq(&pDevice->lock);
95 return result;
96}
97MODULE_FIRMWARE(FIRMWARE_NAME);
98
99int FIRMWAREbBrach2Sram(struct vnt_private *pDevice)
100{
101 int NdisStatus;
102
103 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Branch to Sram\n");
104
105 NdisStatus = CONTROLnsRequestOut(pDevice,
106 1,
107 0x1200,
108 0x0000,
109 0,
110 NULL);
111 if (NdisStatus != STATUS_SUCCESS)
112 return false;
113 else
114 return true;
115}
116
117int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
118{
119 int ntStatus;
120
121 ntStatus = CONTROLnsRequestIn(pDevice,
122 MESSAGE_TYPE_READ,
123 0,
124 MESSAGE_REQUEST_VERSION,
125 2,
126 (u8 *) &(pDevice->wFirmwareVersion));
127
128 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n",
129 pDevice->wFirmwareVersion);
130 if (ntStatus != STATUS_SUCCESS) {
131 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Invalid.\n");
132 return false;
133 }
134 if (pDevice->wFirmwareVersion == 0xFFFF) {
135 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"In Loader.\n");
136 return false;
137 }
138 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n",
139 pDevice->wFirmwareVersion);
140 if (pDevice->wFirmwareVersion < FIRMWARE_VERSION) {
141 /* branch to loader for download new firmware */
142 FIRMWAREbBrach2Sram(pDevice);
143 return false;
144 }
145 return true;
146}