Merge git://git.infradead.org/~dwmw2/rbtree-2.6
[linux-2.6] / drivers / ide / pci / generic.c
1 /*
2  *  linux/drivers/ide/pci/generic.c     Version 0.11    December 30, 2002
3  *
4  *  Copyright (C) 2001-2002     Andre Hedrick <andre@linux-ide.org>
5  *  Portions (C) Copyright 2002  Red Hat Inc <alan@redhat.com>
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License as published by the
9  * Free Software Foundation; either version 2, or (at your option) any
10  * later version.
11  *
12  * This program is distributed in the hope that it will be useful, but
13  * WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * General Public License for more details.
16  *
17  * For the avoidance of doubt the "preferred form" of this code is one which
18  * is in an open non patent encumbered format. Where cryptographic key signing
19  * forms part of the process of creating an executable the information
20  * including keys needed to generate an equivalently functional executable
21  * are deemed to be part of the source code.
22  */
23
24 #undef REALLY_SLOW_IO           /* most systems can safely undef this */
25
26 #include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */
27 #include <linux/types.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/delay.h>
31 #include <linux/timer.h>
32 #include <linux/mm.h>
33 #include <linux/ioport.h>
34 #include <linux/blkdev.h>
35 #include <linux/hdreg.h>
36 #include <linux/pci.h>
37 #include <linux/ide.h>
38 #include <linux/init.h>
39
40 #include <asm/io.h>
41
42 static int ide_generic_all;             /* Set to claim all devices */
43
44 #ifndef MODULE
45 static int __init ide_generic_all_on(char *unused)
46 {
47         ide_generic_all = 1;
48         printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
49         return 1;
50 }
51 __setup("all-generic-ide", ide_generic_all_on);
52 #endif
53
54 static void __devinit init_hwif_generic (ide_hwif_t *hwif)
55 {
56         switch(hwif->pci_dev->device) {
57                 case PCI_DEVICE_ID_UMC_UM8673F:
58                 case PCI_DEVICE_ID_UMC_UM8886A:
59                 case PCI_DEVICE_ID_UMC_UM8886BF:
60                         hwif->irq = hwif->channel ? 15 : 14;
61                         break;
62                 default:
63                         break;
64         }
65
66         if (!(hwif->dma_base))
67                 return;
68
69         hwif->atapi_dma = 1;
70         hwif->ultra_mask = 0x7f;
71         hwif->mwdma_mask = 0x07;
72         hwif->swdma_mask = 0x07;
73
74         if (!noautodma)
75                 hwif->autodma = 1;
76         hwif->drives[0].autodma = hwif->autodma;
77         hwif->drives[1].autodma = hwif->autodma;
78 }
79
80 #if 0
81         /* Logic to add back later on */
82
83         if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
84                 ide_pci_device_t *unknown = unknown_chipset;
85                 init_setup_unknown(dev, unknown);
86                 return 1;
87         }
88         return 0;
89 #endif  
90
91 static ide_pci_device_t generic_chipsets[] __devinitdata = {
92         {       /* 0 */
93                 .name           = "Unknown",
94                 .init_hwif      = init_hwif_generic,
95                 .channels       = 2,
96                 .autodma        = AUTODMA,
97                 .bootable       = ON_BOARD,
98         },{     /* 1 */
99                 .name           = "NS87410",
100                 .init_hwif      = init_hwif_generic,
101                 .channels       = 2,
102                 .autodma        = AUTODMA,
103                 .enablebits     = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
104                 .bootable       = ON_BOARD,
105         },{     /* 2 */
106                 .name           = "SAMURAI",
107                 .init_hwif      = init_hwif_generic,
108                 .channels       = 2,
109                 .autodma        = AUTODMA,
110                 .bootable       = ON_BOARD,
111         },{     /* 3 */
112                 .name           = "HT6565",
113                 .init_hwif      = init_hwif_generic,
114                 .channels       = 2,
115                 .autodma        = AUTODMA,
116                 .bootable       = ON_BOARD,
117         },{     /* 4 */
118                 .name           = "UM8673F",
119                 .init_hwif      = init_hwif_generic,
120                 .channels       = 2,
121                 .autodma        = NODMA,
122                 .bootable       = ON_BOARD,
123         },{     /* 5 */
124                 .name           = "UM8886A",
125                 .init_hwif      = init_hwif_generic,
126                 .channels       = 2,
127                 .autodma        = NODMA,
128                 .bootable       = ON_BOARD,
129         },{     /* 6 */
130                 .name           = "UM8886BF",
131                 .init_hwif      = init_hwif_generic,
132                 .channels       = 2,
133                 .autodma        = NODMA,
134                 .bootable       = ON_BOARD,
135         },{     /* 7 */
136                 .name           = "HINT_IDE",
137                 .init_hwif      = init_hwif_generic,
138                 .channels       = 2,
139                 .autodma        = AUTODMA,
140                 .bootable       = ON_BOARD,
141         },{     /* 8 */
142                 .name           = "VIA_IDE",
143                 .init_hwif      = init_hwif_generic,
144                 .channels       = 2,
145                 .autodma        = NOAUTODMA,
146                 .bootable       = ON_BOARD,
147         },{     /* 9 */
148                 .name           = "OPTI621V",
149                 .init_hwif      = init_hwif_generic,
150                 .channels       = 2,
151                 .autodma        = NOAUTODMA,
152                 .bootable       = ON_BOARD,
153         },{     /* 10 */
154                 .name           = "VIA8237SATA",
155                 .init_hwif      = init_hwif_generic,
156                 .channels       = 2,
157                 .autodma        = AUTODMA,
158                 .bootable       = OFF_BOARD,
159         },{     /* 11 */
160                 .name           = "Piccolo0102",
161                 .init_hwif      = init_hwif_generic,
162                 .channels       = 2,
163                 .autodma        = NOAUTODMA,
164                 .bootable       = ON_BOARD,
165         },{     /* 12 */
166                 .name           = "Piccolo0103",
167                 .init_hwif      = init_hwif_generic,
168                 .channels       = 2,
169                 .autodma        = NOAUTODMA,
170                 .bootable       = ON_BOARD,
171         },{     /* 13 */
172                 .name           = "Piccolo0105",
173                 .init_hwif      = init_hwif_generic,
174                 .channels       = 2,
175                 .autodma        = NOAUTODMA,
176                 .bootable       = ON_BOARD,
177         },{     /* 14 */
178                 .name           = "Revolution",
179                 .init_hwif      = init_hwif_generic,
180                 .channels       = 2,
181                 .autodma        = AUTODMA,
182                 .bootable       = OFF_BOARD,
183         }
184 };
185
186 /**
187  *      generic_init_one        -       called when a PIIX is found
188  *      @dev: the generic device
189  *      @id: the matching pci id
190  *
191  *      Called when the PCI registration layer (or the IDE initialization)
192  *      finds a device matching our IDE device tables.
193  */
194  
195 static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
196 {
197         ide_pci_device_t *d = &generic_chipsets[id->driver_data];
198         u16 command;
199         int ret = -ENODEV;
200
201         /* Don't use the generic entry unless instructed to do so */
202         if (id->driver_data == 0 && ide_generic_all == 0)
203                         goto out;
204
205         if (dev->vendor == PCI_VENDOR_ID_UMC &&
206             dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
207             (!(PCI_FUNC(dev->devfn) & 1)))
208                 goto out; /* UM8886A/BF pair */
209
210         if (dev->vendor == PCI_VENDOR_ID_OPTI &&
211             dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
212             (!(PCI_FUNC(dev->devfn) & 1)))
213                 goto out;
214
215         pci_read_config_word(dev, PCI_COMMAND, &command);
216         if (!(command & PCI_COMMAND_IO)) {
217                 printk(KERN_INFO "Skipping disabled %s IDE controller.\n", d->name);
218                 goto out;
219         }
220         ret = ide_setup_pci_device(dev, d);
221 out:
222         return ret;
223 }
224
225 static struct pci_device_id generic_pci_tbl[] = {
226         { PCI_VENDOR_ID_NS,     PCI_DEVICE_ID_NS_87410,            PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
227         { PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE,  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
228         { PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
229         { PCI_VENDOR_ID_UMC,    PCI_DEVICE_ID_UMC_UM8673F,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
230         { PCI_VENDOR_ID_UMC,    PCI_DEVICE_ID_UMC_UM8886A,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
231         { PCI_VENDOR_ID_UMC,    PCI_DEVICE_ID_UMC_UM8886BF,        PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
232         { PCI_VENDOR_ID_HINT,   PCI_DEVICE_ID_HINT_VXPROII_IDE,    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7},
233         { PCI_VENDOR_ID_VIA,    PCI_DEVICE_ID_VIA_82C561,          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8},
234         { PCI_VENDOR_ID_OPTI,   PCI_DEVICE_ID_OPTI_82C558,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9},
235 #ifdef CONFIG_BLK_DEV_IDE_SATA
236         { PCI_VENDOR_ID_VIA,    PCI_DEVICE_ID_VIA_8237_SATA,       PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10},
237 #endif
238         { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO,     PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11},
239         { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12},
240         { PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 13},
241         { PCI_VENDOR_ID_NETCELL,PCI_DEVICE_ID_REVOLUTION,          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 14},
242         /* Must come last. If you add entries adjust this table appropriately and the init_one code */
243         { PCI_ANY_ID,           PCI_ANY_ID,                        PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0},
244         { 0, },
245 };
246 MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
247
248 static struct pci_driver driver = {
249         .name           = "PCI_IDE",
250         .id_table       = generic_pci_tbl,
251         .probe          = generic_init_one,
252 };
253
254 static int generic_ide_init(void)
255 {
256         return ide_pci_register_driver(&driver);
257 }
258
259 module_init(generic_ide_init);
260
261 MODULE_AUTHOR("Andre Hedrick");
262 MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
263 MODULE_LICENSE("GPL");