linux/drivers/ata/pata_opti.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * pata_opti.c 	- ATI PATA for new ATA layer
 *			  (C) 2005 Red Hat Inc
 *
 * Based on
 *  linux/drivers/ide/pci/opti621.c		Version 0.7	Sept 10, 2002
 *
 *  Copyright (C) 1996-1998  Linus Torvalds & authors (see below)
 *
 * Authors:
 * Jaromir Koutek <[email protected]>,
 * Jan Harkes <[email protected]>,
 * Mark Lord <[email protected]>
 * Some parts of code are from ali14xx.c and from rz1000.c.
 *
 * Also consulted the FreeBSD prototype driver by Kevin Day to try
 * and resolve some confusions. Further documentation can be found in
 * Ralf Brown's interrupt list
 *
 * If you have other variants of the Opti range (Viper/Vendetta) please
 * try this driver with those PCI idents and report back. For the later
 * chips see the pata_optidma driver
 *
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <scsi/scsi_host.h>
#include <linux/libata.h>

#define DRV_NAME …
#define DRV_VERSION …

enum { … };

/**
 *	opti_pre_reset		-	probe begin
 *	@link: ATA link
 *	@deadline: deadline jiffies for the operation
 *
 *	Set up cable type and use generic probe init
 */

static int opti_pre_reset(struct ata_link *link, unsigned long deadline)
{ … }

/**
 *	opti_write_reg		-	control register setup
 *	@ap: ATA port
 *	@val: value
 *	@reg: control register number
 *
 *	The Opti uses magic 'trapdoor' register accesses to do configuration
 *	rather than using PCI space as other controllers do. The double inw
 *	on the error register activates configuration mode. We can then write
 *	the control register
 */

static void opti_write_reg(struct ata_port *ap, u8 val, int reg)
{ … }

/**
 *	opti_set_piomode	-	set initial PIO mode data
 *	@ap: ATA interface
 *	@adev: ATA device
 *
 *	Called to do the PIO mode setup. Timing numbers are taken from
 *	the FreeBSD driver then pre computed to keep the code clean. There
 *	are two tables depending on the hardware clock speed.
 */

static void opti_set_piomode(struct ata_port *ap, struct ata_device *adev)
{ … }

static const struct scsi_host_template opti_sht = …;

static struct ata_port_operations opti_port_ops = …;

static int opti_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{ … }

static const struct pci_device_id opti[] = …;

static struct pci_driver opti_pci_driver = …;

module_pci_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_DEVICE_TABLE(pci, opti);
MODULE_VERSION(…);