1 // SPDX-License-Identifier: ISC
2 /*
3  * Copyright (c) 2013 Broadcom Corporation
4  */
5 #ifndef BRCMFMAC_FIRMWARE_H
6 #define BRCMFMAC_FIRMWARE_H
7 
8 #define BRCMF_FW_REQF_OPTIONAL		0x0001
9 
10 #define	BRCMF_FW_NAME_LEN		320
11 
12 #define BRCMF_FW_DEFAULT_PATH		"brcm/"
13 
14 #define BRCMF_FW_MAX_BOARD_TYPES	8
15 
16 /**
17  * struct brcmf_firmware_mapping - Used to map chipid/revmask to firmware
18  *	filename and nvram filename. Each bus type implementation should create
19  *	a table of firmware mappings (using the macros defined below).
20  *
21  * @chipid: ID of chip.
22  * @revmask: bitmask of revisions, e.g. 0x10 means rev 4 only, 0xf means rev 0-3
23  * @fw: name of the firmware file.
24  * @nvram: name of nvram file.
25  */
26 struct brcmf_firmware_mapping {
27 	u32 chipid;
28 	u32 revmask;
29 	const char *fw_base;
30 };
31 
32 #define BRCMF_FW_DEF(fw_name, fw_base) \
33 static const char BRCM_ ## fw_name ## _FIRMWARE_BASENAME[] = \
34 	BRCMF_FW_DEFAULT_PATH fw_base; \
35 MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH fw_base ".bin")
36 
37 /* Firmware and Country Local Matrix files */
38 #define BRCMF_FW_CLM_DEF(fw_name, fw_base) \
39 static const char BRCM_ ## fw_name ## _FIRMWARE_BASENAME[] = \
40 	BRCMF_FW_DEFAULT_PATH fw_base; \
41 MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH fw_base ".bin"); \
42 MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH fw_base ".clm_blob")
43 
44 #define BRCMF_FW_ENTRY(chipid, mask, name) \
45 	{ chipid, mask, BRCM_ ## name ## _FIRMWARE_BASENAME }
46 
47 void brcmf_fw_nvram_free(void *nvram);
48 
49 enum brcmf_fw_type {
50 	BRCMF_FW_TYPE_BINARY,
51 	BRCMF_FW_TYPE_NVRAM
52 };
53 
54 struct brcmf_fw_item {
55 	const char *path;
56 	enum brcmf_fw_type type;
57 	u16 flags;
58 	union {
59 		const struct firmware *binary;
60 		struct {
61 			void *data;
62 			u32 len;
63 		} nv_data;
64 	};
65 };
66 
67 struct brcmf_fw_request {
68 	u16 domain_nr;
69 	u16 bus_nr;
70 	u32 n_items;
71 	const char *board_types[BRCMF_FW_MAX_BOARD_TYPES];
72 	struct brcmf_fw_item items[];
73 };
74 
75 struct brcmf_fw_name {
76 	const char *extension;
77 	char *path;
78 };
79 
80 struct brcmf_fw_request *
81 brcmf_fw_alloc_request(u32 chip, u32 chiprev,
82 		       const struct brcmf_firmware_mapping mapping_table[],
83 		       u32 table_size, struct brcmf_fw_name *fwnames,
84 		       u32 n_fwnames);
85 
86 /*
87  * Request firmware(s) asynchronously. When the asynchronous request
88  * fails it will not use the callback, but call device_release_driver()
89  * instead which will call the driver .remove() callback.
90  */
91 int brcmf_fw_get_firmwares(struct device *dev, struct brcmf_fw_request *req,
92 			   void (*fw_cb)(struct device *dev, int err,
93 					 struct brcmf_fw_request *req));
94 
95 #endif /* BRCMFMAC_FIRMWARE_H */
96