SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/scsi/bfa/bfad_fwimg.c

   1 /*
   2  * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 /**
  19  *  bfad_fwimg.c Linux driver PCI interface module.
  20  */
  21 #include <bfa_os_inc.h>
  22 #include <bfad_drv.h>
  23 #include <bfad_im_compat.h>
  24 #include <defs/bfa_defs_version.h>
  25 #include <linux/errno.h>
  26 #include <linux/sched.h>
  27 #include <linux/init.h>
  28 #include <linux/fs.h>
  29 #include <asm/uaccess.h>
  30 #include <asm/fcntl.h>
  31 #include <linux/pci.h>
  32 #include <linux/firmware.h>
  33 #include <bfa_fwimg_priv.h>
  34 #include <bfa.h>
  35
  36 u32 bfi_image_ct_size;
  37 u32 bfi_image_cb_size;
  38 u32 *bfi_image_ct;
  39 u32 *bfi_image_cb;
  40
  41
  42 #define BFAD_FW_FILE_CT "ctfw.bin"
  43 #define BFAD_FW_FILE_CB "cbfw.bin"
  44 MODULE_FIRMWARE(BFAD_FW_FILE_CT);
  45 MODULE_FIRMWARE(BFAD_FW_FILE_CB);
  46
  47 u32 *
  48 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  49                         u32 *bfi_image_size, char *fw_name)
  50 {
  51         const struct firmware *fw;
  52
  53         if (request_firmware(&fw, fw_name, &pdev->dev)) {
  54                 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
  55                 goto error;
  56         }
  57
  58         *bfi_image = vmalloc(fw->size);
  59         if (NULL == *bfi_image) {
  60                 printk(KERN_ALERT "Fail to allocate buffer for fw image "
  61                         "size=%x!\n", (u32) fw->size);
  62                 goto error;
  63         }
  64
  65         memcpy(*bfi_image, fw->data, fw->size);
  66         *bfi_image_size = fw->size/sizeof(u32);
  67
  68         return *bfi_image;
  69
  70 error:
  71         return NULL;
  72 }
  73
  74 u32 *
  75 bfad_get_firmware_buf(struct pci_dev *pdev)
  76 {
  77         if (pdev->device == BFA_PCI_DEVICE_ID_CT) {
  78                 if (bfi_image_ct_size == 0)
  79                         bfad_read_firmware(pdev, &bfi_image_ct,
  80                                 &bfi_image_ct_size, BFAD_FW_FILE_CT);
  81                 return bfi_image_ct;
  82         } else {
  83                 if (bfi_image_cb_size == 0)
  84                         bfad_read_firmware(pdev, &bfi_image_cb,
  85                                 &bfi_image_cb_size, BFAD_FW_FILE_CB);
  86                 return bfi_image_cb;
  87         }
  88 }
  89
  90 u32 *
  91 bfi_image_ct_get_chunk(u32 off)
  92 { return (u32 *)(bfi_image_ct + off); }
  93
  94 u32 *
  95 bfi_image_cb_get_chunk(u32 off)
  96 { return (u32 *)(bfi_image_cb + off); }
  97