path: root/drivers/ata/pata_legacy.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *   pata-legacy.c - Legacy port PATA/SATA controller driver.
 *   Copyright 2005/2006 Red Hat, all rights reserved.
 *
 *   An ATA driver for the legacy ATA ports.
 *
 *   Data Sources:
 *	Opti 82C465/82C611 support: Data sheets at opti-inc.com
 *	HT6560 series:
 *	Promise 20230/20620:
 *		http://www.ryston.cz/petr/vlb/pdc20230b.html
 *		http://www.ryston.cz/petr/vlb/pdc20230c.html
 *		http://www.ryston.cz/petr/vlb/pdc20630.html
 *	QDI65x0:
 *		http://www.ryston.cz/petr/vlb/qd6500.html
 *		http://www.ryston.cz/petr/vlb/qd6580.html
 *
 *	QDI65x0 probe code based on drivers/ide/legacy/qd65xx.c
 *	Rewritten from the work of Colten Edwards <pje120@cs.usask.ca> by
 *	Samuel Thibault <samuel.thibault@ens-lyon.org>
 *
 *  Unsupported but docs exist:
 *	Appian/Adaptec AIC25VL01/Cirrus Logic PD7220
 *
 *  This driver handles legacy (that is "ISA/VLB side") IDE ports found
 *  on PC class systems. There are three hybrid devices that are exceptions
 *  The Cyrix 5510/5520 where a pre SFF ATA device is on the bridge and
 *  the MPIIX where the tuning is PCI side but the IDE is "ISA side".
 *
 *  Specific support is included for the ht6560a/ht6560b/opti82c611a/
 *  opti82c465mv/promise 20230c/20630/qdi65x0/winbond83759A
 *
 *  Support for the Winbond 83759A when operating in advanced mode.
 *  Multichip mode is not currently supported.
 *
 *  Use the autospeed and pio_mask options with:
 *	Appian ADI/2 aka CLPD7220 or AIC25VL01.
 *  Use the jumpers, autospeed and set pio_mask to the mode on the jumpers with
 *	Goldstar GM82C711, PIC-1288A-125, UMC 82C871F, Winbond W83759,
 *	Winbond W83759A, Promise PDC20230-B
 *
 *  For now use autospeed and pio_mask as above with the W83759A. This may
 *  change.
 */

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

#define DRV_NAME "pata_legacy"
#define DRV_VERSION "0.6.5"

#define NR_HOST 6

static int all;
module_param(all, int, 0444);
MODULE_PARM_DESC(all,
		 "Set to probe unclaimed pri/sec ISA port ranges even if PCI");

static int probe_all;
module_param(probe_all, int, 0);
MODULE_PARM_DESC(probe_all,
		 "Set to probe tertiary+ ISA port ranges even if PCI");

static int autospeed;
module_param(autospeed, int, 0);
MODULE_PARM_DESC(autospeed, "Chip present that snoops speed changes");

static int pio_mask = ATA_PIO4;
module_param(pio_mask, int, 0);
MODULE_PARM_DESC(pio_mask, "PIO range for autospeed devices");

static int iordy_mask = 0xFFFFFFFF;
module_param(iordy_mask, int, 0);
MODULE_PARM_DESC(iordy_mask, "Use IORDY if available");

static int ht6560a;
module_param(ht6560a, int, 0);
MODULE_PARM_DESC(ht6560a, "HT 6560A on primary 1, second 2, both 3");

static int ht6560b;
module_param(ht6560b, int, 0);
MODULE_PARM_DESC(ht6560b, "HT 6560B on primary 1, secondary 2, both 3");

static int opti82c611a;
module_param(opti82c611a, int, 0);
MODULE_PARM_DESC(opti82c611a,
		 "Opti 82c611A on primary 1, secondary 2, both 3");

static int opti82c46x;
module_param(opti82c46x, int, 0);
MODULE_PARM_DESC(opti82c46x,
		 "Opti 82c465MV on primary 1, secondary 2, both 3");

#ifdef CONFIG_PATA_QDI_MODULE
static int qdi = 1;
#else
static int qdi;
#endif
module_param(qdi, int, 0);
MODULE_PARM_DESC(qdi, "Set to probe QDI controllers");

#ifdef CONFIG_PATA_WINBOND_VLB_MODULE
static int winbond = 1;
#else
static int winbond;
#endif
module_param(winbond, int, 0);
MODULE_PARM_DESC(winbond,
		 "Set to probe Winbond controllers, "
		 "give I/O port if non standard");


enum controller {
	BIOS = 0,
	SNOOP = 1,
	PDC20230 = 2,
	HT6560A = 3,
	HT6560B = 4,
	OPTI611A = 5,
	OPTI46X = 6,
	QDI6500 = 7,
	QDI6580 = 8,