12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273 |
- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- Copyright (C) 2004 - 2006 rt2x00 SourceForge Project
- <http://rt2x00.serialmonkey.com>
- */
- /*
- Module: eeprom_93cx6
- Abstract: EEPROM reader datastructures for 93cx6 chipsets.
- Supported chipsets: 93c46, 93c56 and 93c66.
- */
- /*
- * EEPROM operation defines.
- */
- #define PCI_EEPROM_WIDTH_93C46 6
- #define PCI_EEPROM_WIDTH_93C56 8
- #define PCI_EEPROM_WIDTH_93C66 8
- #define PCI_EEPROM_WIDTH_93C86 8
- #define PCI_EEPROM_WIDTH_OPCODE 3
- #define PCI_EEPROM_WRITE_OPCODE 0x05
- #define PCI_EEPROM_ERASE_OPCODE 0x07
- #define PCI_EEPROM_READ_OPCODE 0x06
- #define PCI_EEPROM_EWDS_OPCODE 0x10
- #define PCI_EEPROM_EWEN_OPCODE 0x13
- /**
- * struct eeprom_93cx6 - control structure for setting the commands
- * for reading the eeprom data.
- * @data: private pointer for the driver.
- * @register_read(struct eeprom_93cx6 *eeprom): handler to
- * read the eeprom register, this function should set all reg_* fields.
- * @register_write(struct eeprom_93cx6 *eeprom): handler to
- * write to the eeprom register by using all reg_* fields.
- * @width: eeprom width, should be one of the PCI_EEPROM_WIDTH_* defines
- * @drive_data: Set if we're driving the data line.
- * @reg_data_in: register field to indicate data input
- * @reg_data_out: register field to indicate data output
- * @reg_data_clock: register field to set the data clock
- * @reg_chip_select: register field to set the chip select
- *
- * This structure is used for the communication between the driver
- * and the eeprom_93cx6 handlers for reading the eeprom.
- */
- struct eeprom_93cx6 {
- void *data;
- void (*register_read)(struct eeprom_93cx6 *eeprom);
- void (*register_write)(struct eeprom_93cx6 *eeprom);
- int width;
- char drive_data;
- char reg_data_in;
- char reg_data_out;
- char reg_data_clock;
- char reg_chip_select;
- };
- extern void eeprom_93cx6_read(struct eeprom_93cx6 *eeprom,
- const u8 word, u16 *data);
- extern void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom,
- const u8 word, __le16 *data, const u16 words);
- extern void eeprom_93cx6_readb(struct eeprom_93cx6 *eeprom,
- const u8 byte, u8 *data);
- extern void eeprom_93cx6_multireadb(struct eeprom_93cx6 *eeprom,
- const u8 byte, u8 *data, const u16 bytes);
- extern void eeprom_93cx6_wren(struct eeprom_93cx6 *eeprom, bool enable);
- extern void eeprom_93cx6_write(struct eeprom_93cx6 *eeprom,
- u8 addr, u16 data);
|