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 (bfi_image_ct_cna + off);
71 	case BFI_ASIC_GEN_CT2:
72 		return (bfi_image_ct2_cna + off);
73 	default:
74 		return NULL;
75 	}
76 }
77 
78 u32
79 bfa_cb_image_get_size(enum bfi_asic_gen asic_gen)
80 {
81 	switch (asic_gen) {
82 	case BFI_ASIC_GEN_CT:
83 		return bfi_image_ct_cna_size;
84 	case BFI_ASIC_GEN_CT2:
85 		return bfi_image_ct2_cna_size;
86 	default:
87 		return 0;
88 	}
89 }
90