linux/drivers/ata/pata_efar.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *    pata_efar.c - EFAR PIIX clone controller driver
 *
 *	(C) 2005 Red Hat
 *	(C) 2009-2010 Bartlomiej Zolnierkiewicz
 *
 *    Some parts based on ata_piix.c by Jeff Garzik and others.
 *
 *    The EFAR is a PIIX4 clone with UDMA66 support. Unlike the later
 *    Intel ICH controllers the EFAR widened the UDMA mode register bits
 *    and doesn't require the funky clock selection.
 */

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

#define DRV_NAME …
#define DRV_VERSION …

/**
 *	efar_pre_reset	-	Enable bits
 *	@link: ATA link
 *	@deadline: deadline jiffies for the operation
 *
 *	Perform cable detection for the EFAR ATA interface. This is
 *	different to the PIIX arrangement
 */

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

/**
 *	efar_cable_detect	-	check for 40/80 pin
 *	@ap: Port
 *
 *	Perform cable detection for the EFAR ATA interface. This is
 *	different to the PIIX arrangement
 */

static int efar_cable_detect(struct ata_port *ap)
{ … }

static DEFINE_SPINLOCK(efar_lock);

/**
 *	efar_set_piomode - Initialize host controller PATA PIO timings
 *	@ap: Port whose timings we are configuring
 *	@adev: Device to program
 *
 *	Set PIO mode for device, in host controller PCI config space.
 *
 *	LOCKING:
 *	None (inherited from caller).
 */

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

/**
 *	efar_set_dmamode - Initialize host controller PATA DMA timings
 *	@ap: Port whose timings we are configuring
 *	@adev: Device to program
 *
 *	Set UDMA/MWDMA mode for device, in host controller PCI config space.
 *
 *	LOCKING:
 *	None (inherited from caller).
 */

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

static const struct scsi_host_template efar_sht = …;

static struct ata_port_operations efar_ops = …;


/**
 *	efar_init_one - Register EFAR ATA PCI device with kernel services
 *	@pdev: PCI device to register
 *	@ent: Entry in efar_pci_tbl matching with @pdev
 *
 *	Called from kernel PCI layer.
 *
 *	LOCKING:
 *	Inherited from PCI layer (may sleep).
 *
 *	RETURNS:
 *	Zero on success, or -ERRNO value.
 */

static int efar_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
{ … }

static const struct pci_device_id efar_pci_tbl[] = …;

static struct pci_driver efar_pci_driver = …;

module_pci_driver(…) …;

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