xref: /openbmc/linux/drivers/ata/pata_netcell.c (revision b04b4f78)
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 struct scsi_host_template netcell_sht = {
24 	ATA_BMDMA_SHT(DRV_NAME),
25 };
26 
27 static struct ata_port_operations netcell_ops = {
28 	.inherits	= &ata_bmdma_port_ops,
29 	.cable_detect		= ata_cable_80wire,
30 };
31 
32 
33 /**
34  *	netcell_init_one - Register Netcell ATA PCI device with kernel services
35  *	@pdev: PCI device to register
36  *	@ent: Entry in netcell_pci_tbl matching with @pdev
37  *
38  *	Called from kernel PCI layer.
39  *
40  *	LOCKING:
41  *	Inherited from PCI layer (may sleep).
42  *
43  *	RETURNS:
44  *	Zero on success, or -ERRNO value.
45  */
46 
47 static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
48 {
49 	static int printed_version;
50 	static const struct ata_port_info info = {
51 		.flags		= ATA_FLAG_SLAVE_POSS,
52 		/* Actually we don't really care about these as the
53 		   firmware deals with it */
54 		.pio_mask	= ATA_PIO4,
55 		.mwdma_mask	= ATA_MWDMA2,
56 		.udma_mask 	= ATA_UDMA5, /* UDMA 133 */
57 		.port_ops	= &netcell_ops,
58 	};
59 	const struct ata_port_info *port_info[] = { &info, NULL };
60 	int rc;
61 
62 	if (!printed_version++)
63 		dev_printk(KERN_DEBUG, &pdev->dev,
64 			   "version " DRV_VERSION "\n");
65 
66 	rc = pcim_enable_device(pdev);
67 	if (rc)
68 		return rc;
69 
70 	/* Any chip specific setup/optimisation/messages here */
71 	ata_pci_bmdma_clear_simplex(pdev);
72 
73 	/* And let the library code do the work */
74 	return ata_pci_sff_init_one(pdev, port_info, &netcell_sht, NULL);
75 }
76 
77 static const struct pci_device_id netcell_pci_tbl[] = {
78 	{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), },
79 
80 	{ }	/* terminate list */
81 };
82 
83 static struct pci_driver netcell_pci_driver = {
84 	.name			= DRV_NAME,
85 	.id_table		= netcell_pci_tbl,
86 	.probe			= netcell_init_one,
87 	.remove			= ata_pci_remove_one,
88 #ifdef CONFIG_PM
89 	.suspend		= ata_pci_device_suspend,
90 	.resume			= ata_pci_device_resume,
91 #endif
92 };
93 
94 static int __init netcell_init(void)
95 {
96 	return pci_register_driver(&netcell_pci_driver);
97 }
98 
99 static void __exit netcell_exit(void)
100 {
101 	pci_unregister_driver(&netcell_pci_driver);
102 }
103 
104 module_init(netcell_init);
105 module_exit(netcell_exit);
106 
107 MODULE_AUTHOR("Alan Cox");
108 MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
109 MODULE_LICENSE("GPL");
110 MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
111 MODULE_VERSION(DRV_VERSION);
112 
113