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/*

 *    pata_netcell.c - Netcell PATA driver

 *

 *      (c) 2006 Red Hat  <alan@redhat.com>

 */

#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 <linux/device.h>

#include <scsi/scsi_host.h>

#include <linux/libata.h>

#include <linux/ata.h>

#define DRV_NAME        "pata_netcell"

#define DRV_VERSION     "0.1.7"

/* No PIO or DMA methods needed for this device */

static struct scsi_host_template netcell_sht = {

        .module                 = THIS_MODULE,

        .name                   = DRV_NAME,

        .ioctl                  = ata_scsi_ioctl,

        .queuecommand           = ata_scsi_queuecmd,

        .can_queue              = ATA_DEF_QUEUE,

        .this_id                = ATA_SHT_THIS_ID,

        .sg_tablesize           = LIBATA_MAX_PRD,

        .cmd_per_lun            = ATA_SHT_CMD_PER_LUN,

        .emulated               = ATA_SHT_EMULATED,

        .use_clustering         = ATA_SHT_USE_CLUSTERING,

        .proc_name              = DRV_NAME,

        .dma_boundary           = ATA_DMA_BOUNDARY,

        .slave_configure        = ata_scsi_slave_config,

        .slave_destroy          = ata_scsi_slave_destroy,

        /* Use standard CHS mapping rules */

        .bios_param             = ata_std_bios_param,

};

static const struct ata_port_operations netcell_ops = {

        /* Task file is PCI ATA format, use helpers */

        .tf_load                = ata_tf_load,

        .tf_read                = ata_tf_read,

        .check_status           = ata_check_status,

        .exec_command           = ata_exec_command,

        .dev_select             = ata_std_dev_select,

        .freeze                 = ata_bmdma_freeze,

        .thaw                   = ata_bmdma_thaw,

        .error_handler          = ata_bmdma_error_handler,

        .post_internal_cmd      = ata_bmdma_post_internal_cmd,

        .cable_detect           = ata_cable_80wire,

        /* BMDMA handling is PCI ATA format, use helpers */

        .bmdma_setup            = ata_bmdma_setup,

        .bmdma_start            = ata_bmdma_start,

        .bmdma_stop             = ata_bmdma_stop,

        .bmdma_status           = ata_bmdma_status,

        .qc_prep                = ata_qc_prep,

        .qc_issue               = ata_qc_issue_prot,

        .data_xfer              = ata_data_xfer,

        /* IRQ-related hooks */

        .irq_handler            = ata_interrupt,

        .irq_clear              = ata_bmdma_irq_clear,

        .irq_on                 = ata_irq_on,

        /* Generic PATA PCI ATA helpers */

        .port_start             = ata_sff_port_start,

};

/**

 *      netcell_init_one - Register Netcell ATA PCI device with kernel services

 *      @pdev: PCI device to register

 *      @ent: Entry in netcell_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 netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)

{

        static int printed_version;

        static const struct ata_port_info info = {

                .sht            = &netcell_sht,

                .flags          = ATA_FLAG_SLAVE_POSS,

                /* Actually we don't really care about these as the

                   firmware deals with it */

                .pio_mask       = 0x1f, /* pio0-4 */

                .mwdma_mask     = 0x07, /* mwdma0-2 */

                .udma_mask      = ATA_UDMA5, /* UDMA 133 */

                .port_ops       = &netcell_ops,

        };

        const struct ata_port_info *port_info[] = { &info, NULL };

        if (!printed_version++)

                dev_printk(KERN_DEBUG, &pdev->dev,

                           "version " DRV_VERSION "\n");

        /* Any chip specific setup/optimisation/messages here */

        ata_pci_clear_simplex(pdev);

        /* And let the library code do the work */

        return ata_pci_init_one(pdev, port_info);

}

static const struct pci_device_id netcell_pci_tbl[] = {

        { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },

        { }     /* terminate list */

};

static struct pci_driver netcell_pci_driver = {

        .name                   = DRV_NAME,

        .id_table               = netcell_pci_tbl,

        .probe                  = netcell_init_one,

        .remove                 = ata_pci_remove_one,

#ifdef CONFIG_PM

        .suspend                = ata_pci_device_suspend,

        .resume                 = ata_pci_device_resume,

#endif

};

static int __init netcell_init(void)

{

        return pci_register_driver(&netcell_pci_driver);

}

static void __exit netcell_exit(void)

{

        pci_unregister_driver(&netcell_pci_driver);

}

module_init(netcell_init);

module_exit(netcell_exit);

MODULE_AUTHOR("Alan Cox");

MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");

MODULE_LICENSE("GPL");

MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);

MODULE_VERSION(DRV_VERSION);