pata_netcell.c

Go to the documentation of this file.

/*
 *    pata_netcell.c - Netcell PATA driver
 *
 *  (c) 2006 Red Hat
 */

#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 unsigned int netcell_read_id(struct ata_device *adev,
                    struct ata_taskfile *tf, u16 *id)
{
    unsigned int err_mask = ata_do_dev_read_id(adev, tf, id);
    /* Firmware forgets to mark words 85-87 valid */
    if (err_mask == 0)
        id[ATA_ID_CSF_DEFAULT] |= 0x4000;
    return err_mask;
}

static struct scsi_host_template netcell_sht = {
    ATA_BMDMA_SHT(DRV_NAME),
};

static struct ata_port_operations netcell_ops = {
    .inherits   = &ata_bmdma_port_ops,
    .cable_detect   = ata_cable_80wire,
    .read_id    = netcell_read_id,
};


static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
{
    static const struct ata_port_info info = {
        .flags      = ATA_FLAG_SLAVE_POSS,
        /* Actually we don't really care about these as the
           firmware deals with it */
        .pio_mask   = ATA_PIO4,
        .mwdma_mask = ATA_MWDMA2,
        .udma_mask  = ATA_UDMA5, /* UDMA 133 */
        .port_ops   = &netcell_ops,
    };
    const struct ata_port_info *port_info[] = { &info, NULL };
    int rc;

    ata_print_version_once(&pdev->dev, DRV_VERSION);

    rc = pcim_enable_device(pdev);
    if (rc)
        return rc;

    /* Any chip specific setup/optimisation/messages here */
    ata_pci_bmdma_clear_simplex(pdev);

    /* And let the library code do the work */
    return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0);
}

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
};

module_pci_driver(netcell_pci_driver);

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);