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
  39 static int          msglevel                =MSG_LEVEL_INFO;
  40 //static int          msglevel                =MSG_LEVEL_DEBUG;
  41
  42 #define FIRMWARE_VERSION        0x133           /* version 1.51 */
  43 #define FIRMWARE_NAME           "vntwusb.fw"
  44
  45 #define FIRMWARE_CHUNK_SIZE     0x400
  46
  47
  48
  49
  50
  51
  52
  53 int FIRMWAREbDownload(struct vnt_private *pDevice)
  54 {
  55         struct device *dev = &pDevice->usb->dev;
  56         const struct firmware *fw;
  57         int NdisStatus;
  58         void *pBuffer = NULL;
  59         bool result = false;
  60         u16 wLength;
  61         int ii, rc;
  62
  63
  64         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Download firmware\n");
  65         spin_unlock_irq(&pDevice->lock);
  66
  67         rc = request_firmware(&fw, FIRMWARE_NAME, dev);
  68         if (rc) {
  69                 dev_err(dev, "firmware file %s request failed (%d)\n",
  70                         FIRMWARE_NAME, rc);
  71                         goto out;
  72         }
  73
  74         pBuffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
  75         if (!pBuffer)
  76                 goto out;
  77
  78         for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
  79                 wLength = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);
  80                 memcpy(pBuffer, fw->data + ii, wLength);
  81
  82                 NdisStatus = CONTROLnsRequestOutAsyn(pDevice,
  83                                             0,
  84                                             0x1200+ii,
  85                                             0x0000,
  86                                             wLength,
  87                                             pBuffer
  88                                             );
  89
  90                 DBG_PRT(MSG_LEVEL_DEBUG,
  91                         KERN_INFO"Download firmware...%d %zu\n", ii, fw->size);
  92                 if (NdisStatus != STATUS_SUCCESS)
  93                         goto free_fw;
  94         }
  95
  96         result = true;
  97 free_fw:
  98         release_firmware(fw);
  99
 100 out:
 101         kfree(pBuffer);
 102
 103         spin_lock_irq(&pDevice->lock);
 104         return result;
 105 }
 106 MODULE_FIRMWARE(FIRMWARE_NAME);
 107
 108 int FIRMWAREbBrach2Sram(struct vnt_private *pDevice)
 109 {
 110         int NdisStatus;
 111
 112     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Branch to Sram\n");
 113
 114     NdisStatus = CONTROLnsRequestOut(pDevice,
 115                                     1,
 116                                     0x1200,
 117                                     0x0000,
 118                                     0,
 119                                     NULL
 120                                     );
 121
 122     if (NdisStatus != STATUS_SUCCESS) {
 123         return (false);
 124     } else {
 125         return (true);
 126     }
 127 }
 128
 129
 130 int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
 131 {
 132         int ntStatus;
 133
 134     ntStatus = CONTROLnsRequestIn(pDevice,
 135                                     MESSAGE_TYPE_READ,
 136                                     0,
 137                                     MESSAGE_REQUEST_VERSION,
 138                                     2,
 139                                     (u8 *) &(pDevice->wFirmwareVersion));
 140
 141     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
 142     if (ntStatus != STATUS_SUCCESS) {
 143         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Invalid.\n");
 144         return false;
 145     }
 146     if (pDevice->wFirmwareVersion == 0xFFFF) {
 147         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"In Loader.\n");
 148         return false;
 149     }
 150     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
 151     if (pDevice->wFirmwareVersion < FIRMWARE_VERSION) {
 152         // branch to loader for download new firmware
 153         FIRMWAREbBrach2Sram(pDevice);
 154         return false;
 155     }
 156     return true;
 157 }