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
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