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