projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 9467d64b ID |
1 | /* |
| 2 | Copyright (C) 2004 - 2006 rt2x00 SourceForge Project | |
| 3 | <http://rt2x00.serialmonkey.com> | |
| 4 | ||
| 5 | This program is free software; you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU General Public License as published by | |
| 7 | the Free Software Foundation; either version 2 of the License, or | |
| 8 | (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU General Public License | |
| 16 | along with this program; if not, write to the | |
| 17 | Free Software Foundation, Inc., | |
| 18 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 19 | */ | |
| 20 | ||
| 21 | /* | |
| 22 | Module: eeprom_93cx6 | |
| 23 | Abstract: EEPROM reader datastructures for 93cx6 chipsets. | |
| 89e536a1 | 24 | Supported chipsets: 93c46, 93c56 and 93c66. |
| 9467d64b ID |
25 | */ |
| 26 | ||
| 27 | /* | |
| 28 | * EEPROM operation defines. | |
| 29 | */ | |
| 30 | #define PCI_EEPROM_WIDTH_93C46 6 | |
| 89e536a1 | 31 | #define PCI_EEPROM_WIDTH_93C56 8 |
| 9467d64b ID |
32 | #define PCI_EEPROM_WIDTH_93C66 8 |
| 33 | #define PCI_EEPROM_WIDTH_OPCODE 3 | |
| 34 | #define PCI_EEPROM_WRITE_OPCODE 0x05 | |
| 35 | #define PCI_EEPROM_READ_OPCODE 0x06 | |
| 36 | #define PCI_EEPROM_EWDS_OPCODE 0x10 | |
| 37 | #define PCI_EEPROM_EWEN_OPCODE 0x13 | |
| 38 | ||
| 39 | /** | |
| 40 | * struct eeprom_93cx6 - control structure for setting the commands | |
| 41 | * for reading the eeprom data. | |
| 42 | * @data: private pointer for the driver. | |
| 43 | * @register_read(struct eeprom_93cx6 *eeprom): handler to | |
| 44 | * read the eeprom register, this function should set all reg_* fields. | |
| 45 | * @register_write(struct eeprom_93cx6 *eeprom): handler to | |
| 46 | * write to the eeprom register by using all reg_* fields. | |
| 47 | * @width: eeprom width, should be one of the PCI_EEPROM_WIDTH_* defines | |
| 48 | * @reg_data_in: register field to indicate data input | |
| 49 | * @reg_data_out: register field to indicate data output | |
| 50 | * @reg_data_clock: register field to set the data clock | |
| 51 | * @reg_chip_select: register field to set the chip select | |
| 52 | * | |
| 53 | * This structure is used for the communication between the driver | |
| 54 | * and the eeprom_93cx6 handlers for reading the eeprom. | |
| 55 | */ | |
| 56 | struct eeprom_93cx6 { | |
| 57 | void *data; | |
| 58 | ||
| 59 | void (*register_read)(struct eeprom_93cx6 *eeprom); | |
| 60 | void (*register_write)(struct eeprom_93cx6 *eeprom); | |
| 61 | ||
| 62 | int width; | |
| 63 | ||
| 64 | char reg_data_in; | |
| 65 | char reg_data_out; | |
| 66 | char reg_data_clock; | |
| 67 | char reg_chip_select; | |
| 68 | }; | |
| 69 | ||
| 70 | extern void eeprom_93cx6_read(struct eeprom_93cx6 *eeprom, | |
| 71 | const u8 word, u16 *data); | |
| 72 | extern void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom, | |
| 73 | const u8 word, __le16 *data, const u16 words); |