// SPDX-License-Identifier: GPL-2.0-only
/*
 * Linux network driver for QLogic BR-series Converged Network Adapter.
 */
/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014-2015 QLogic Corporation
 * All rights reserved
 * www.qlogic.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;
        u32 n;

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

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

        /* Convert loaded firmware to host order as it is stored in file
         * as sequence of LE32 integers.
         */
        for (n = 0; n < *bfi_image_size; n++)
                le32_to_cpus(*bfi_image + n);

        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);
        case BFI_ASIC_GEN_CT2:
                return (bfi_image_ct2_cna + off);
        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;
        case BFI_ASIC_GEN_CT2:
                return bfi_image_ct2_cna_size;
        default:
                return 0;
        }
}