1 /* 2 * pata_netcell.c - Netcell PATA driver 3 * 4 * (c) 2006 Red Hat <alan@redhat.com> 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 struct scsi_host_template netcell_sht = { 24 .module = THIS_MODULE, 25 .name = DRV_NAME, 26 .ioctl = ata_scsi_ioctl, 27 .queuecommand = ata_scsi_queuecmd, 28 .can_queue = ATA_DEF_QUEUE, 29 .this_id = ATA_SHT_THIS_ID, 30 .sg_tablesize = LIBATA_MAX_PRD, 31 .cmd_per_lun = ATA_SHT_CMD_PER_LUN, 32 .emulated = ATA_SHT_EMULATED, 33 .use_clustering = ATA_SHT_USE_CLUSTERING, 34 .proc_name = DRV_NAME, 35 .dma_boundary = ATA_DMA_BOUNDARY, 36 .slave_configure = ata_scsi_slave_config, 37 .slave_destroy = ata_scsi_slave_destroy, 38 /* Use standard CHS mapping rules */ 39 .bios_param = ata_std_bios_param, 40 }; 41 42 static const struct ata_port_operations netcell_ops = { 43 /* Task file is PCI ATA format, use helpers */ 44 .tf_load = ata_tf_load, 45 .tf_read = ata_tf_read, 46 .check_status = ata_check_status, 47 .exec_command = ata_exec_command, 48 .dev_select = ata_std_dev_select, 49 50 .freeze = ata_bmdma_freeze, 51 .thaw = ata_bmdma_thaw, 52 .error_handler = ata_bmdma_error_handler, 53 .post_internal_cmd = ata_bmdma_post_internal_cmd, 54 .cable_detect = ata_cable_80wire, 55 56 /* BMDMA handling is PCI ATA format, use helpers */ 57 .bmdma_setup = ata_bmdma_setup, 58 .bmdma_start = ata_bmdma_start, 59 .bmdma_stop = ata_bmdma_stop, 60 .bmdma_status = ata_bmdma_status, 61 .qc_prep = ata_qc_prep, 62 .qc_issue = ata_qc_issue_prot, 63 .data_xfer = ata_data_xfer, 64 65 /* IRQ-related hooks */ 66 .irq_handler = ata_interrupt, 67 .irq_clear = ata_bmdma_irq_clear, 68 .irq_on = ata_irq_on, 69 70 /* Generic PATA PCI ATA helpers */ 71 .port_start = ata_sff_port_start, 72 }; 73 74 75 /** 76 * netcell_init_one - Register Netcell ATA PCI device with kernel services 77 * @pdev: PCI device to register 78 * @ent: Entry in netcell_pci_tbl matching with @pdev 79 * 80 * Called from kernel PCI layer. 81 * 82 * LOCKING: 83 * Inherited from PCI layer (may sleep). 84 * 85 * RETURNS: 86 * Zero on success, or -ERRNO value. 87 */ 88 89 static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) 90 { 91 static int printed_version; 92 static const struct ata_port_info info = { 93 .sht = &netcell_sht, 94 .flags = ATA_FLAG_SLAVE_POSS, 95 /* Actually we don't really care about these as the 96 firmware deals with it */ 97 .pio_mask = 0x1f, /* pio0-4 */ 98 .mwdma_mask = 0x07, /* mwdma0-2 */ 99 .udma_mask = ATA_UDMA5, /* UDMA 133 */ 100 .port_ops = &netcell_ops, 101 }; 102 const struct ata_port_info *port_info[] = { &info, NULL }; 103 104 if (!printed_version++) 105 dev_printk(KERN_DEBUG, &pdev->dev, 106 "version " DRV_VERSION "\n"); 107 108 /* Any chip specific setup/optimisation/messages here */ 109 ata_pci_clear_simplex(pdev); 110 111 /* And let the library code do the work */ 112 return ata_pci_init_one(pdev, port_info); 113 } 114 115 static const struct pci_device_id netcell_pci_tbl[] = { 116 { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), }, 117 118 { } /* terminate list */ 119 }; 120 121 static struct pci_driver netcell_pci_driver = { 122 .name = DRV_NAME, 123 .id_table = netcell_pci_tbl, 124 .probe = netcell_init_one, 125 .remove = ata_pci_remove_one, 126 #ifdef CONFIG_PM 127 .suspend = ata_pci_device_suspend, 128 .resume = ata_pci_device_resume, 129 #endif 130 }; 131 132 static int __init netcell_init(void) 133 { 134 return pci_register_driver(&netcell_pci_driver); 135 } 136 137 static void __exit netcell_exit(void) 138 { 139 pci_unregister_driver(&netcell_pci_driver); 140 } 141 142 module_init(netcell_init); 143 module_exit(netcell_exit); 144 145 MODULE_AUTHOR("Alan Cox"); 146 MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID"); 147 MODULE_LICENSE("GPL"); 148 MODULE_DEVICE_TABLE(pci, netcell_pci_tbl); 149 MODULE_VERSION(DRV_VERSION); 150 151