cna_fwimg.c

Go to the documentation of this file.

/*
 * Linux network driver for Brocade Converged Network Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */
/*
 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
 * All rights reserved
 * www.brocade.com
 */
#include <linux/firmware.h>
#include "bnad.h"
#include "bfi.h"
#include "cna.h"

const struct firmware *bfi_fw;
static u32 *bfi_image_ct_cna, *bfi_image_ct2_cna;
static u32 bfi_image_ct_cna_size, bfi_image_ct2_cna_size;

static u32 *
cna_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
            u32 *bfi_image_size, char *fw_name)
{
    const struct firmware *fw;

    if (request_firmware(&fw, fw_name, &pdev->dev)) {
        pr_alert("Can't locate firmware %s\n", fw_name);
        goto error;
    }

    *bfi_image = (u32 *)fw->data;
    *bfi_image_size = fw->size/sizeof(u32);
    bfi_fw = fw;

    return *bfi_image;
error:
    return NULL;
}

u32 *
cna_get_firmware_buf(struct pci_dev *pdev)
{
    if (pdev->device == BFA_PCI_DEVICE_ID_CT2) {
        if (bfi_image_ct2_cna_size == 0)
            cna_read_firmware(pdev, &bfi_image_ct2_cna,
                &bfi_image_ct2_cna_size, CNA_FW_FILE_CT2);
        return bfi_image_ct2_cna;
    } else if (bfa_asic_id_ct(pdev->device)) {
        if (bfi_image_ct_cna_size == 0)
            cna_read_firmware(pdev, &bfi_image_ct_cna,
                &bfi_image_ct_cna_size, CNA_FW_FILE_CT);
        return bfi_image_ct_cna;
    }

    return NULL;
}

u32 *
bfa_cb_image_get_chunk(enum bfi_asic_gen asic_gen, u32 off)
{
    switch (asic_gen) {
    case BFI_ASIC_GEN_CT:
        return (bfi_image_ct_cna + off);
        break;
    case BFI_ASIC_GEN_CT2:
        return (bfi_image_ct2_cna + off);
        break;
    default:
        return NULL;
    }
}

u32
bfa_cb_image_get_size(enum bfi_asic_gen asic_gen)
{
    switch (asic_gen) {
    case BFI_ASIC_GEN_CT:
        return bfi_image_ct_cna_size;
        break;
    case BFI_ASIC_GEN_CT2:
        return bfi_image_ct2_cna_size;
        break;
    default:
        return 0;
    }
}