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669a5db4 JG |
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" | |
3b4ba591 | 19 | #define DRV_VERSION "0.1.7" |
669a5db4 JG |
20 | |
21 | /* No PIO or DMA methods needed for this device */ | |
22 | ||
23 | static struct scsi_host_template netcell_sht = { | |
68d1d07b | 24 | ATA_BMDMA_SHT(DRV_NAME), |
669a5db4 JG |
25 | }; |
26 | ||
27 | static const struct ata_port_operations netcell_ops = { | |
669a5db4 JG |
28 | /* Task file is PCI ATA format, use helpers */ |
29 | .tf_load = ata_tf_load, | |
30 | .tf_read = ata_tf_read, | |
31 | .check_status = ata_check_status, | |
32 | .exec_command = ata_exec_command, | |
33 | .dev_select = ata_std_dev_select, | |
34 | ||
6bd99b4e | 35 | .mode_filter = ata_pci_default_filter, |
669a5db4 JG |
36 | .freeze = ata_bmdma_freeze, |
37 | .thaw = ata_bmdma_thaw, | |
3b4ba591 | 38 | .error_handler = ata_bmdma_error_handler, |
669a5db4 | 39 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
3b4ba591 | 40 | .cable_detect = ata_cable_80wire, |
669a5db4 JG |
41 | |
42 | /* BMDMA handling is PCI ATA format, use helpers */ | |
43 | .bmdma_setup = ata_bmdma_setup, | |
44 | .bmdma_start = ata_bmdma_start, | |
45 | .bmdma_stop = ata_bmdma_stop, | |
46 | .bmdma_status = ata_bmdma_status, | |
47 | .qc_prep = ata_qc_prep, | |
48 | .qc_issue = ata_qc_issue_prot, | |
0d5ff566 | 49 | .data_xfer = ata_data_xfer, |
669a5db4 | 50 | |
bda30288 | 51 | /* IRQ-related hooks */ |
669a5db4 JG |
52 | .irq_handler = ata_interrupt, |
53 | .irq_clear = ata_bmdma_irq_clear, | |
246ce3b6 | 54 | .irq_on = ata_irq_on, |
669a5db4 JG |
55 | |
56 | /* Generic PATA PCI ATA helpers */ | |
81ad1837 | 57 | .port_start = ata_sff_port_start, |
669a5db4 JG |
58 | }; |
59 | ||
60 | ||
61 | /** | |
62 | * netcell_init_one - Register Netcell ATA PCI device with kernel services | |
63 | * @pdev: PCI device to register | |
64 | * @ent: Entry in netcell_pci_tbl matching with @pdev | |
65 | * | |
66 | * Called from kernel PCI layer. | |
67 | * | |
68 | * LOCKING: | |
69 | * Inherited from PCI layer (may sleep). | |
70 | * | |
71 | * RETURNS: | |
72 | * Zero on success, or -ERRNO value. | |
73 | */ | |
74 | ||
75 | static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) | |
76 | { | |
77 | static int printed_version; | |
1626aeb8 | 78 | static const struct ata_port_info info = { |
669a5db4 | 79 | .sht = &netcell_sht, |
1d2808fd | 80 | .flags = ATA_FLAG_SLAVE_POSS, |
669a5db4 JG |
81 | /* Actually we don't really care about these as the |
82 | firmware deals with it */ | |
83 | .pio_mask = 0x1f, /* pio0-4 */ | |
84 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
bf6263a8 | 85 | .udma_mask = ATA_UDMA5, /* UDMA 133 */ |
669a5db4 JG |
86 | .port_ops = &netcell_ops, |
87 | }; | |
1626aeb8 | 88 | const struct ata_port_info *port_info[] = { &info, NULL }; |
f08048e9 | 89 | int rc; |
669a5db4 JG |
90 | |
91 | if (!printed_version++) | |
92 | dev_printk(KERN_DEBUG, &pdev->dev, | |
93 | "version " DRV_VERSION "\n"); | |
94 | ||
f08048e9 TH |
95 | rc = pcim_enable_device(pdev); |
96 | if (rc) | |
97 | return rc; | |
98 | ||
669a5db4 JG |
99 | /* Any chip specific setup/optimisation/messages here */ |
100 | ata_pci_clear_simplex(pdev); | |
85cd7251 | 101 | |
669a5db4 | 102 | /* And let the library code do the work */ |
1626aeb8 | 103 | return ata_pci_init_one(pdev, port_info); |
669a5db4 JG |
104 | } |
105 | ||
106 | static const struct pci_device_id netcell_pci_tbl[] = { | |
2d2744fc JG |
107 | { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), }, |
108 | ||
669a5db4 JG |
109 | { } /* terminate list */ |
110 | }; | |
111 | ||
112 | static struct pci_driver netcell_pci_driver = { | |
113 | .name = DRV_NAME, | |
114 | .id_table = netcell_pci_tbl, | |
115 | .probe = netcell_init_one, | |
116 | .remove = ata_pci_remove_one, | |
438ac6d5 | 117 | #ifdef CONFIG_PM |
30ced0f0 A |
118 | .suspend = ata_pci_device_suspend, |
119 | .resume = ata_pci_device_resume, | |
438ac6d5 | 120 | #endif |
669a5db4 JG |
121 | }; |
122 | ||
123 | static int __init netcell_init(void) | |
124 | { | |
125 | return pci_register_driver(&netcell_pci_driver); | |
126 | } | |
127 | ||
128 | static void __exit netcell_exit(void) | |
129 | { | |
130 | pci_unregister_driver(&netcell_pci_driver); | |
131 | } | |
132 | ||
133 | module_init(netcell_init); | |
134 | module_exit(netcell_exit); | |
135 | ||
136 | MODULE_AUTHOR("Alan Cox"); | |
137 | MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID"); | |
138 | MODULE_LICENSE("GPL"); | |
139 | MODULE_DEVICE_TABLE(pci, netcell_pci_tbl); | |
140 | MODULE_VERSION(DRV_VERSION); | |
141 |