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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * pata_netcell.c - Netcell PATA driver4 *5 * (c) 2006 Red Hat6 */7 8#include <linux/kernel.h>9#include <linux/module.h>10#include <linux/pci.h>11#include <linux/blkdev.h>12#include <linux/delay.h>13#include <linux/device.h>14#include <scsi/scsi_host.h>15#include <linux/libata.h>16#include <linux/ata.h>17 18#define DRV_NAME "pata_netcell"19#define DRV_VERSION "0.1.7"20 21/* No PIO or DMA methods needed for this device */22 23static unsigned int netcell_read_id(struct ata_device *adev,24 struct ata_taskfile *tf, __le16 *id)25{26 unsigned int err_mask = ata_do_dev_read_id(adev, tf, id);27 28 /* Firmware forgets to mark words 85-87 valid */29 if (err_mask == 0)30 id[ATA_ID_CSF_DEFAULT] |= cpu_to_le16(0x4000);31 return err_mask;32}33 34static const struct scsi_host_template netcell_sht = {35 ATA_BMDMA_SHT(DRV_NAME),36};37 38static struct ata_port_operations netcell_ops = {39 .inherits = &ata_bmdma_port_ops,40 .cable_detect = ata_cable_80wire,41 .read_id = netcell_read_id,42};43 44 45/**46 * netcell_init_one - Register Netcell ATA PCI device with kernel services47 * @pdev: PCI device to register48 * @ent: Entry in netcell_pci_tbl matching with @pdev49 *50 * Called from kernel PCI layer.51 *52 * LOCKING:53 * Inherited from PCI layer (may sleep).54 *55 * RETURNS:56 * Zero on success, or -ERRNO value.57 */58 59static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)60{61 static const struct ata_port_info info = {62 .flags = ATA_FLAG_SLAVE_POSS,63 /* Actually we don't really care about these as the64 firmware deals with it */65 .pio_mask = ATA_PIO4,66 .mwdma_mask = ATA_MWDMA2,67 .udma_mask = ATA_UDMA5, /* UDMA 133 */68 .port_ops = &netcell_ops,69 };70 const struct ata_port_info *port_info[] = { &info, NULL };71 int rc;72 73 ata_print_version_once(&pdev->dev, DRV_VERSION);74 75 rc = pcim_enable_device(pdev);76 if (rc)77 return rc;78 79 /* Any chip specific setup/optimisation/messages here */80 ata_pci_bmdma_clear_simplex(pdev);81 82 /* And let the library code do the work */83 return ata_pci_bmdma_init_one(pdev, port_info, &netcell_sht, NULL, 0);84}85 86static const struct pci_device_id netcell_pci_tbl[] = {87 { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },88 89 { } /* terminate list */90};91 92static struct pci_driver netcell_pci_driver = {93 .name = DRV_NAME,94 .id_table = netcell_pci_tbl,95 .probe = netcell_init_one,96 .remove = ata_pci_remove_one,97#ifdef CONFIG_PM_SLEEP98 .suspend = ata_pci_device_suspend,99 .resume = ata_pci_device_resume,100#endif101};102 103module_pci_driver(netcell_pci_driver);104 105MODULE_AUTHOR("Alan Cox");106MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");107MODULE_LICENSE("GPL");108MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);109MODULE_VERSION(DRV_VERSION);110