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e359dc24 MF |
1 | /* |
2 | * Load firmware files from Analog Devices SigmaStudio | |
3 | * | |
4 | * Copyright 2009-2011 Analog Devices Inc. | |
5 | * | |
6 | * Licensed under the GPL-2 or later. | |
7 | */ | |
8 | ||
9 | #ifndef __SIGMA_FIRMWARE_H__ | |
10 | #define __SIGMA_FIRMWARE_H__ | |
11 | ||
12 | #include <linux/firmware.h> | |
13 | #include <linux/types.h> | |
14 | ||
15 | struct i2c_client; | |
16 | ||
17 | #define SIGMA_MAGIC "ADISIGM" | |
18 | ||
19 | struct sigma_firmware { | |
20 | const struct firmware *fw; | |
21 | size_t pos; | |
22 | }; | |
23 | ||
24 | struct sigma_firmware_header { | |
25 | unsigned char magic[7]; | |
26 | u8 version; | |
27 | u32 crc; | |
28 | }; | |
29 | ||
30 | enum { | |
31 | SIGMA_ACTION_WRITEXBYTES = 0, | |
32 | SIGMA_ACTION_WRITESINGLE, | |
33 | SIGMA_ACTION_WRITESAFELOAD, | |
34 | SIGMA_ACTION_DELAY, | |
35 | SIGMA_ACTION_PLLWAIT, | |
36 | SIGMA_ACTION_NOOP, | |
37 | SIGMA_ACTION_END, | |
38 | }; | |
39 | ||
40 | struct sigma_action { | |
41 | u8 instr; | |
42 | u8 len_hi; | |
43 | u16 len; | |
44 | u16 addr; | |
45 | unsigned char payload[]; | |
46 | }; | |
47 | ||
48 | static inline u32 sigma_action_len(struct sigma_action *sa) | |
49 | { | |
50 | return (sa->len_hi << 16) | sa->len; | |
51 | } | |
52 | ||
53 | static inline size_t sigma_action_size(struct sigma_action *sa, u32 payload_len) | |
54 | { | |
55 | return sizeof(*sa) + payload_len + (payload_len % 2); | |
56 | } | |
57 | ||
58 | extern int process_sigma_firmware(struct i2c_client *client, const char *name); | |
59 | ||
60 | #endif |