1a59d1b8e0
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/* 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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