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 BOOL
  60 FIRMWAREbDownload(
  61      PSDevice pDevice
  62     )
  63 {
  64         const struct firmware *fw;
  65         int NdisStatus;
  66         void *pBuffer = NULL;
  67         BOOL result = FALSE;
  68         u16 wLength;
  69         int ii;
  70
  71         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Download firmware\n");
  72         spin_unlock_irq(&pDevice->lock);
  73
  74         if (!pDevice->firmware) {
  75                 struct device *dev = &pDevice->usb->dev;
  76                 int rc;
  77
  78                 rc = request_firmware(&pDevice->firmware, FIRMWARE_NAME, dev);
  79                 if (rc) {
  80                         dev_err(dev, "firmware file %s request failed (%d)\n",
  81                                 FIRMWARE_NAME, rc);
  82                         goto out;
  83                 }
  84         }
  85         fw = pDevice->firmware;
  86
  87         pBuffer = kmalloc(FIRMWARE_CHUNK_SIZE, GFP_KERNEL);
  88         if (!pBuffer)
  89                 goto out;
  90
  91         for (ii = 0; ii < fw->size; ii += FIRMWARE_CHUNK_SIZE) {
  92                 wLength = min_t(int, fw->size - ii, FIRMWARE_CHUNK_SIZE);
  93                 memcpy(pBuffer, fw->data + ii, wLength);
  94
  95                 NdisStatus = CONTROLnsRequestOutAsyn(pDevice,
  96                                             0,
  97                                             0x1200+ii,
  98                                             0x0000,
  99                                             wLength,
 100                                             pBuffer
 101                                             );
 102
 103                 DBG_PRT(MSG_LEVEL_DEBUG,
 104                         KERN_INFO"Download firmware...%d %zu\n", ii, fw->size);
 105                 if (NdisStatus != STATUS_SUCCESS)
 106                         goto out;
 107         }
 108
 109         result = TRUE;
 110
 111 out:
 112         kfree(pBuffer);
 113
 114         spin_lock_irq(&pDevice->lock);
 115         return result;
 116 }
 117 MODULE_FIRMWARE(FIRMWARE_NAME);
 118
 119 BOOL
 120 FIRMWAREbBrach2Sram(
 121      PSDevice pDevice
 122     )
 123 {
 124     int NdisStatus;
 125
 126     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Branch to Sram\n");
 127
 128     NdisStatus = CONTROLnsRequestOut(pDevice,
 129                                     1,
 130                                     0x1200,
 131                                     0x0000,
 132                                     0,
 133                                     NULL
 134                                     );
 135
 136     if (NdisStatus != STATUS_SUCCESS) {
 137         return (FALSE);
 138     } else {
 139         return (TRUE);
 140     }
 141 }
 142
 143
 144 BOOL
 145 FIRMWAREbCheckVersion(
 146      PSDevice pDevice
 147     )
 148 {
 149         int ntStatus;
 150
 151     ntStatus = CONTROLnsRequestIn(pDevice,
 152                                     MESSAGE_TYPE_READ,
 153                                     0,
 154                                     MESSAGE_REQUEST_VERSION,
 155                                     2,
 156                                     (PBYTE) &(pDevice->wFirmwareVersion));
 157
 158     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
 159     if (ntStatus != STATUS_SUCCESS) {
 160         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Invalid.\n");
 161         return FALSE;
 162     }
 163     if (pDevice->wFirmwareVersion == 0xFFFF) {
 164         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"In Loader.\n");
 165         return FALSE;
 166     }
 167     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
 168     if (pDevice->wFirmwareVersion < FIRMWARE_VERSION) {
 169         // branch to loader for download new firmware
 170         FIRMWAREbBrach2Sram(pDevice);
 171         return FALSE;
 172     }
 173     return TRUE;
 174 }