linux/drivers/ata/sata_svw.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  sata_svw.c - ServerWorks / Apple K2 SATA
 *
 *  Maintained by: Benjamin Herrenschmidt <[email protected]> and
 *		   Jeff Garzik <[email protected]>
 *  		    Please ALWAYS copy [email protected]
 *		    on emails.
 *
 *  Copyright 2003 Benjamin Herrenschmidt <[email protected]>
 *
 *  Bits from Jeff Garzik, Copyright RedHat, Inc.
 *
 *  This driver probably works with non-Apple versions of the
 *  Broadcom chipset...
 *
 *  libata documentation is available via 'make {ps|pdf}docs',
 *  as Documentation/driver-api/libata.rst
 *
 *  Hardware documentation available under NDA.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi.h>
#include <linux/libata.h>
#include <linux/of.h>
#include <linux/of_address.h>

#define DRV_NAME …
#define DRV_VERSION …

enum { … };

static u8 k2_stat_check_status(struct ata_port *ap);


static int k2_sata_check_atapi_dma(struct ata_queued_cmd *qc)
{ … }

static int k2_sata_scr_read(struct ata_link *link,
			    unsigned int sc_reg, u32 *val)
{ … }


static int k2_sata_scr_write(struct ata_link *link,
			     unsigned int sc_reg, u32 val)
{ … }

static int k2_sata_softreset(struct ata_link *link,
			     unsigned int *class, unsigned long deadline)
{ … }

static int k2_sata_hardreset(struct ata_link *link,
			     unsigned int *class, unsigned long deadline)
{ … }

static void k2_sata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
{ … }


static void k2_sata_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
{ … }

/**
 *	k2_bmdma_setup_mmio - Set up PCI IDE BMDMA transaction (MMIO)
 *	@qc: Info associated with this ATA transaction.
 *
 *	LOCKING:
 *	spin_lock_irqsave(host lock)
 */

static void k2_bmdma_setup_mmio(struct ata_queued_cmd *qc)
{ … }

/**
 *	k2_bmdma_start_mmio - Start a PCI IDE BMDMA transaction (MMIO)
 *	@qc: Info associated with this ATA transaction.
 *
 *	LOCKING:
 *	spin_lock_irqsave(host lock)
 */

static void k2_bmdma_start_mmio(struct ata_queued_cmd *qc)
{ … }


static u8 k2_stat_check_status(struct ata_port *ap)
{ … }

static int k2_sata_show_info(struct seq_file *m, struct Scsi_Host *shost)
{ … }

static const struct scsi_host_template k2_sata_sht = …;


static struct ata_port_operations k2_sata_ops = …;

static const struct ata_port_info k2_port_info[] = …;

static void k2_sata_setup_port(struct ata_ioports *port, void __iomem *base)
{ … }


static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{ … }

/* 0x240 is device ID for Apple K2 device
 * 0x241 is device ID for Serverworks Frodo4
 * 0x242 is device ID for Serverworks Frodo8
 * 0x24a is device ID for BCM5785 (aka HT1000) HT southbridge integrated SATA
 * controller
 * */
static const struct pci_device_id k2_sata_pci_tbl[] = …;

static struct pci_driver k2_sata_pci_driver = …;

module_pci_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_DEVICE_TABLE(pci, k2_sata_pci_tbl);
MODULE_VERSION(…);