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 "bnad.h"
  20 #include "bfi.h"
  21 #include "cna.h"
  22
  23 const struct firmware *bfi_fw;
  24 static u32 *bfi_image_ct_cna, *bfi_image_ct2_cna;
  25 static u32 bfi_image_ct_cna_size, bfi_image_ct2_cna_size;
  26
  27 static u32 *
  28 cna_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  29                         u32 *bfi_image_size, char *fw_name)
  30 {
  31         const struct firmware *fw;
  32
  33         if (request_firmware(&fw, fw_name, &pdev->dev)) {
  34                 pr_alert("Can't locate firmware %s\n", fw_name);
  35                 goto error;
  36         }
  37
  38         *bfi_image = (u32 *)fw->data;
  39         *bfi_image_size = fw->size/sizeof(u32);
  40         bfi_fw = fw;
  41
  42         return *bfi_image;
  43 error:
  44         return NULL;
  45 }
  46
  47 u32 *
  48 cna_get_firmware_buf(struct pci_dev *pdev)
  49 {
  50         if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
  51                 if (bfi_image_ct2_cna_size == 0)
  52                         cna_read_firmware(pdev, &bfi_image_ct2_cna,
  53                                 &bfi_image_ct2_cna_size, CNA_FW_FILE_CT2);
  54                 return bfi_image_ct2_cna;
  55         } else if (bfa_asic_id_ct(pdev->device)) {
  56                 if (bfi_image_ct_cna_size == 0)
  57                         cna_read_firmware(pdev, &bfi_image_ct_cna,
  58                                 &bfi_image_ct_cna_size, CNA_FW_FILE_CT);
  59                 return bfi_image_ct_cna;
  60         }
  61
  62         return NULL;
  63 }
  64
  65 u32 *
  66 bfa_cb_image_get_chunk(enum bfi_asic_gen asic_gen, u32 off)
  67 {
  68         switch (asic_gen) {
  69         case BFI_ASIC_GEN_CT:
  70                 return (u32 *)(bfi_image_ct_cna + off);
  71                 break;
  72         case BFI_ASIC_GEN_CT2:
  73                 return (u32 *)(bfi_image_ct2_cna + off);
  74                 break;
  75         default:
  76                 return NULL;
  77         }
  78 }
  79
  80 u32
  81 bfa_cb_image_get_size(enum bfi_asic_gen asic_gen)
  82 {
  83         switch (asic_gen) {
  84         case BFI_ASIC_GEN_CT:
  85                 return bfi_image_ct_cna_size;
  86                 break;
  87         case BFI_ASIC_GEN_CT2:
  88                 return bfi_image_ct2_cna_size;
  89                 break;
  90         default:
  91                 return 0;
  92         }
  93 }