Pileus Git - ~andy/linux/blob - drivers/staging/vt6656/firmware.c

   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
  38 /*---------------------  Static Definitions -------------------------*/
  39
  40 static int          msglevel                =MSG_LEVEL_INFO;
  41 //static int          msglevel                =MSG_LEVEL_DEBUG;
  42
  43 #define FIRMWARE_VERSION        0x133           /* version 1.51 */
  44 #define FIRMWARE_NAME           "vntwusb.fw"
  45
  46 #define FIRMWARE_CHUNK_SIZE     0x400
  47
  48 /*---------------------  Static Classes  ----------------------------*/
  49
  50 /*---------------------  Static Variables  --------------------------*/
  51
  52 /*---------------------  Static Functions  --------------------------*/
  53
  54 /*---------------------  Export Variables  --------------------------*/
  55
  56 /*---------------------  Export Functions  --------------------------*/
  57
  58
  59 int FIRMWAREbDownload(struct vnt_private *pDevice)
  60 {
  61         struct device *dev = &pDevice->usb->dev;
  62         const struct firmware *fw;
  63         int NdisStatus;
  64         void *pBuffer = NULL;
  65         bool result = false;
  66         u16 wLength;
  67         int ii, rc;
  68
  69
  70         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Download firmware\n");
  71         spin_unlock_irq(&pDevice->lock);
  72
  73         rc = request_firmware(&fw, FIRMWARE_NAME, dev);
  74         if (rc) {
  75                 dev_err(dev, "firmware file %s request failed (%d)\n",
  76                         FIRMWARE_NAME, rc);
  77                         goto out;
  78         }
  79
  80         pBuffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
  81         if (!pBuffer)
  82                 goto out;
  83
  84         for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
  85                 wLength = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);
  86                 memcpy(pBuffer, fw->data + ii, wLength);
  87
  88                 NdisStatus = CONTROLnsRequestOutAsyn(pDevice,
  89                                             0,
  90                                             0x1200+ii,
  91                                             0x0000,
  92                                             wLength,
  93                                             pBuffer
  94                                             );
  95
  96                 DBG_PRT(MSG_LEVEL_DEBUG,
  97                         KERN_INFO"Download firmware...%d %zu\n", ii, fw->size);
  98                 if (NdisStatus != STATUS_SUCCESS)
  99                         goto free_fw;
 100         }
 101
 102         result = true;
 103 free_fw:
 104         release_firmware(fw);
 105
 106 out:
 107         kfree(pBuffer);
 108
 109         spin_lock_irq(&pDevice->lock);
 110         return result;
 111 }
 112 MODULE_FIRMWARE(FIRMWARE_NAME);
 113
 114 int FIRMWAREbBrach2Sram(struct vnt_private *pDevice)
 115 {
 116         int NdisStatus;
 117
 118     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Branch to Sram\n");
 119
 120     NdisStatus = CONTROLnsRequestOut(pDevice,
 121                                     1,
 122                                     0x1200,
 123                                     0x0000,
 124                                     0,
 125                                     NULL
 126                                     );
 127
 128     if (NdisStatus != STATUS_SUCCESS) {
 129         return (false);
 130     } else {
 131         return (true);
 132     }
 133 }
 134
 135
 136 int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
 137 {
 138         int ntStatus;
 139
 140     ntStatus = CONTROLnsRequestIn(pDevice,
 141                                     MESSAGE_TYPE_READ,
 142                                     0,
 143                                     MESSAGE_REQUEST_VERSION,
 144                                     2,
 145                                     (PBYTE) &(pDevice->wFirmwareVersion));
 146
 147     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
 148     if (ntStatus != STATUS_SUCCESS) {
 149         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Invalid.\n");
 150         return false;
 151     }
 152     if (pDevice->wFirmwareVersion == 0xFFFF) {
 153         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"In Loader.\n");
 154         return false;
 155     }
 156     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
 157     if (pDevice->wFirmwareVersion < FIRMWARE_VERSION) {
 158         // branch to loader for download new firmware
 159         FIRMWAREbBrach2Sram(pDevice);
 160         return false;
 161     }
 162     return true;
 163 }