Commit | Line | Data |
---|---|---|
1a59d1b8 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
9467d64b ID |
2 | /* |
3 | Copyright (C) 2004 - 2006 rt2x00 SourceForge Project | |
4 | <http://rt2x00.serialmonkey.com> | |
5 | ||
9467d64b ID |
6 | */ |
7 | ||
8 | /* | |
9 | Module: eeprom_93cx6 | |
10 | Abstract: EEPROM reader datastructures for 93cx6 chipsets. | |
89e536a1 | 11 | Supported chipsets: 93c46, 93c56 and 93c66. |
9467d64b ID |
12 | */ |
13 | ||
14 | /* | |
15 | * EEPROM operation defines. | |
16 | */ | |
17 | #define PCI_EEPROM_WIDTH_93C46 6 | |
89e536a1 | 18 | #define PCI_EEPROM_WIDTH_93C56 8 |
9467d64b | 19 | #define PCI_EEPROM_WIDTH_93C66 8 |
afd2a5ca | 20 | #define PCI_EEPROM_WIDTH_93C86 8 |
9467d64b ID |
21 | #define PCI_EEPROM_WIDTH_OPCODE 3 |
22 | #define PCI_EEPROM_WRITE_OPCODE 0x05 | |
072bc801 | 23 | #define PCI_EEPROM_ERASE_OPCODE 0x07 |
9467d64b ID |
24 | #define PCI_EEPROM_READ_OPCODE 0x06 |
25 | #define PCI_EEPROM_EWDS_OPCODE 0x10 | |
26 | #define PCI_EEPROM_EWEN_OPCODE 0x13 | |
27 | ||
28 | /** | |
29 | * struct eeprom_93cx6 - control structure for setting the commands | |
30 | * for reading the eeprom data. | |
31 | * @data: private pointer for the driver. | |
32 | * @register_read(struct eeprom_93cx6 *eeprom): handler to | |
33 | * read the eeprom register, this function should set all reg_* fields. | |
34 | * @register_write(struct eeprom_93cx6 *eeprom): handler to | |
35 | * write to the eeprom register by using all reg_* fields. | |
36 | * @width: eeprom width, should be one of the PCI_EEPROM_WIDTH_* defines | |
b30f8bdc | 37 | * @drive_data: Set if we're driving the data line. |
9467d64b ID |
38 | * @reg_data_in: register field to indicate data input |
39 | * @reg_data_out: register field to indicate data output | |
40 | * @reg_data_clock: register field to set the data clock | |
41 | * @reg_chip_select: register field to set the chip select | |
42 | * | |
43 | * This structure is used for the communication between the driver | |
44 | * and the eeprom_93cx6 handlers for reading the eeprom. | |
45 | */ | |
46 | struct eeprom_93cx6 { | |
47 | void *data; | |
48 | ||
49 | void (*register_read)(struct eeprom_93cx6 *eeprom); | |
50 | void (*register_write)(struct eeprom_93cx6 *eeprom); | |
51 | ||
52 | int width; | |
53 | ||
b30f8bdc | 54 | char drive_data; |
9467d64b ID |
55 | char reg_data_in; |
56 | char reg_data_out; | |
57 | char reg_data_clock; | |
58 | char reg_chip_select; | |
59 | }; | |
60 | ||
61 | extern void eeprom_93cx6_read(struct eeprom_93cx6 *eeprom, | |
62 | const u8 word, u16 *data); | |
63 | extern void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom, | |
64 | const u8 word, __le16 *data, const u16 words); | |
7ff28aee OZ |
65 | extern void eeprom_93cx6_readb(struct eeprom_93cx6 *eeprom, |
66 | const u8 byte, u8 *data); | |
67 | extern void eeprom_93cx6_multireadb(struct eeprom_93cx6 *eeprom, | |
68 | const u8 byte, u8 *data, const u16 bytes); | |
072bc801 BD |
69 | |
70 | extern void eeprom_93cx6_wren(struct eeprom_93cx6 *eeprom, bool enable); | |
71 | ||
72 | extern void eeprom_93cx6_write(struct eeprom_93cx6 *eeprom, | |
73 | u8 addr, u16 data); |