drivers/net/ethernet/brocade/bna/cna_fwimg.c

   1 /*
   2  * Linux network driver for Brocade Converged Network Adapter.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License (GPL) Version 2 as
   6  * published by the Free Software Foundation
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  */
  13 /*
  14  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
  15  * All rights reserved
  16  * www.brocade.com
  17  */
  18 #include <linux/firmware.h>
  19 #include "cna.h"
  20
  21 const struct firmware *bfi_fw;
  22 static u32 *bfi_image_ct_cna;
  23 static u32 bfi_image_ct_cna_size;
  24
  25 static u32 *
  26 cna_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  27                         u32 *bfi_image_size, char *fw_name)
  28 {
  29         const struct firmware *fw;
  30
  31         if (request_firmware(&fw, fw_name, &pdev->dev)) {
  32                 pr_alert("Can't locate firmware %s\n", fw_name);
  33                 goto error;
  34         }
  35
  36         *bfi_image = (u32 *)fw->data;
  37         *bfi_image_size = fw->size/sizeof(u32);
  38         bfi_fw = fw;
  39
  40         return *bfi_image;
  41 error:
  42         return NULL;
  43 }
  44
  45 u32 *
  46 cna_get_firmware_buf(struct pci_dev *pdev)
  47 {
  48         if (bfi_image_ct_cna_size == 0)
  49                 cna_read_firmware(pdev, &bfi_image_ct_cna,
  50                         &bfi_image_ct_cna_size, CNA_FW_FILE_CT);
  51         return bfi_image_ct_cna;
  52 }
  53
  54 u32 *
  55 bfa_cb_image_get_chunk(int type, u32 off)
  56 {
  57         return (u32 *)(bfi_image_ct_cna + off);
  58 }
  59
  60 u32
  61 bfa_cb_image_get_size(int type)
  62 {
  63         return bfi_image_ct_cna_size;
  64 }