LXR linux/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
  40static 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
  59BOOL
  60FIRMWAREbDownload(
  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
 111out:
 112        kfree(pBuffer);
 113
 114        spin_lock_irq(&pDevice->lock);
 115        return result;
 116}
 117MODULE_FIRMWARE(FIRMWARE_NAME);
 118
 119BOOL
 120FIRMWAREbBrach2Sram(
 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
 144BOOL
 145FIRMWAREbCheckVersion(
 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}
 175