1 /*-
2 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 /* local prototypes */
28 static int ata_cyrix_chipinit(device_t dev);
29 static void ata_cyrix_setmode(device_t dev, int mode);
30
31 /*
32 * Cyrix chipset support functions
33 */
34 int
ata_cyrix_ident(device_t dev)35 ata_cyrix_ident(device_t dev)
36 {
37 struct ata_pci_controller *ctlr = device_get_softc(dev);
38
39 if (pci_get_devid(dev) == ATA_CYRIX_5530) {
40 device_set_desc(dev, "Cyrix 5530 ATA33 controller");
41 ctlr->chipinit = ata_cyrix_chipinit;
42 return 0;
43 }
44 return ENXIO;
45 }
46
47 static int
ata_cyrix_chipinit(device_t dev)48 ata_cyrix_chipinit(device_t dev)
49 {
50 struct ata_pci_controller *ctlr = device_get_softc(dev);
51
52 if (ata_setup_interrupt(dev, ata_generic_intr))
53 return ENXIO;
54
55 ctlr->setmode = ata_cyrix_setmode;
56 return 0;
57 }
58
59 static void
ata_cyrix_setmode(device_t dev,int mode)60 ata_cyrix_setmode(device_t dev, int mode)
61 {
62 struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev));
63 struct ata_channel *ch = device_get_softc(device_get_parent(dev));
64 struct ata_device *atadev = device_get_softc(dev);
65 int devno = (ch->unit << 1) + atadev->unit;
66 int error;
67 static const uint32_t piotiming[] =
68 { 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 };
69 static const uint32_t dmatiming[] =
70 { 0x00077771, 0x00012121, 0x00002020 };
71 static const uint32_t udmatiming[] =
72 { 0x00921250, 0x00911140, 0x00911030 };
73
74 mode = ata_limit_mode(dev, mode, ATA_UDMA2);
75
76 error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
77
78 if (bootverbose)
79 device_printf(dev, "%ssetting %s on Cyrix chip\n",
80 (error) ? "FAILURE " : "", ata_mode2str(mode));
81
82 if (!error) {
83 /* dont try to set the mode if we dont have the resource */
84 if (ctlr->r_res1) {
85 ch->dma->alignment = 16;
86 ch->dma->max_iosize = 64 * DEV_BSIZE;
87
88 if (mode >= ATA_UDMA0) {
89 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
90 0x24 + (devno << 3), udmatiming[mode & ATA_MODE_MASK]);
91 }
92 else if (mode >= ATA_WDMA0) {
93 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
94 0x24 + (devno << 3), dmatiming[mode & ATA_MODE_MASK]);
95 }
96 else {
97 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
98 0x20 + (devno << 3), piotiming[mode & ATA_MODE_MASK]);
99 }
100 }
101 atadev->mode = mode;
102 }
103 }
104