linux/drivers/ata/pata_sch.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *  pata_sch.c - Intel SCH PATA controllers
 *
 *  Copyright (c) 2008 Alek Du <[email protected]>
 */

/*
 *  Supports:
 *    Intel SCH (AF82US15W, AF82US15L, AF82UL11L) chipsets -- see spec at:
 *    http://download.intel.com/design/chipsets/embedded/datashts/319537.pdf
 */

#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/dmi.h>

#define DRV_NAME …
#define DRV_VERSION …

/* see SCH datasheet page 351 */
enum { … };

static int sch_init_one(struct pci_dev *pdev,
			 const struct pci_device_id *ent);
static void sch_set_piomode(struct ata_port *ap, struct ata_device *adev);
static void sch_set_dmamode(struct ata_port *ap, struct ata_device *adev);

static const struct pci_device_id sch_pci_tbl[] = …;

static struct pci_driver sch_pci_driver = …;

static const struct scsi_host_template sch_sht = …;

static struct ata_port_operations sch_pata_ops = …;

static const struct ata_port_info sch_port_info = …;

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

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

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

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

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

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

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

module_pci_driver(…) …;