| 1 | /* |
| 2 | * pata_netcell.c - Netcell PATA driver |
| 3 | * |
| 4 | * (c) 2006 Red Hat |
| 5 | */ |
| 6 | |
| 7 | #include <linux/kernel.h> |
| 8 | #include <linux/module.h> |
| 9 | #include <linux/pci.h> |
| 10 | #include <linux/init.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 | |
| 23 | static unsigned int netcell_read_id(struct ata_device *adev, |
| 24 | struct ata_taskfile *tf, u16 *id) |
| 25 | { |
| 26 | unsigned int err_mask = ata_do_dev_read_id(adev, tf, id); |
| 27 | /* Firmware forgets to mark words 85-87 valid */ |
| 28 | if (err_mask == 0) |
| 29 | id[ATA_ID_CSF_DEFAULT] |= 0x4000; |
| 30 | return err_mask; |
| 31 | } |
| 32 | |
| 33 | static struct scsi_host_template netcell_sht = { |
| 34 | ATA_BMDMA_SHT(DRV_NAME), |
| 35 | }; |
| 36 | |
| 37 | static struct ata_port_operations netcell_ops = { |
| 38 | .inherits = &ata_bmdma_port_ops, |
| 39 | .cable_detect = ata_cable_80wire, |
| 40 | .read_id = netcell_read_id, |
| 41 | }; |
| 42 | |
| 43 | |
| 44 | /** |
| 45 | * netcell_init_one - Register Netcell ATA PCI device with kernel services |
| 46 | * @pdev: PCI device to register |
| 47 | * @ent: Entry in netcell_pci_tbl matching with @pdev |
| 48 | * |
| 49 | * Called from kernel PCI layer. |
| 50 | * |
| 51 | * LOCKING: |
| 52 | * Inherited from PCI layer (may sleep). |
| 53 | * |
| 54 | * RETURNS: |
| 55 | * Zero on success, or -ERRNO value. |
| 56 | */ |
| 57 | |
| 58 | static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 59 | { |
| 60 | static int printed_version; |
| 61 | static const struct ata_port_info info = { |
| 62 | .flags = ATA_FLAG_SLAVE_POSS, |
| 63 | /* Actually we don't really care about these as the |
| 64 | 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 | if (!printed_version++) |
| 74 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 75 | "version " DRV_VERSION "\n"); |
| 76 | |
| 77 | rc = pcim_enable_device(pdev); |
| 78 | if (rc) |
| 79 | return rc; |
| 80 | |
| 81 | /* Any chip specific setup/optimisation/messages here */ |
| 82 | ata_pci_bmdma_clear_simplex(pdev); |
| 83 | |
| 84 | /* And let the library code do the work */ |
| 85 | return ata_pci_sff_init_one(pdev, port_info, &netcell_sht, NULL); |
| 86 | } |
| 87 | |
| 88 | static const struct pci_device_id netcell_pci_tbl[] = { |
| 89 | { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), }, |
| 90 | |
| 91 | { } /* terminate list */ |
| 92 | }; |
| 93 | |
| 94 | static struct pci_driver netcell_pci_driver = { |
| 95 | .name = DRV_NAME, |
| 96 | .id_table = netcell_pci_tbl, |
| 97 | .probe = netcell_init_one, |
| 98 | .remove = ata_pci_remove_one, |
| 99 | #ifdef CONFIG_PM |
| 100 | .suspend = ata_pci_device_suspend, |
| 101 | .resume = ata_pci_device_resume, |
| 102 | #endif |
| 103 | }; |
| 104 | |
| 105 | static int __init netcell_init(void) |
| 106 | { |
| 107 | return pci_register_driver(&netcell_pci_driver); |
| 108 | } |
| 109 | |
| 110 | static void __exit netcell_exit(void) |
| 111 | { |
| 112 | pci_unregister_driver(&netcell_pci_driver); |
| 113 | } |
| 114 | |
| 115 | module_init(netcell_init); |
| 116 | module_exit(netcell_exit); |
| 117 | |
| 118 | MODULE_AUTHOR("Alan Cox"); |
| 119 | MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID"); |
| 120 | MODULE_LICENSE("GPL"); |
| 121 | MODULE_DEVICE_TABLE(pci, netcell_pci_tbl); |
| 122 | MODULE_VERSION(DRV_VERSION); |
| 123 | |