1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/param.h>
30 #include <sys/module.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/ata.h>
34 #include <sys/bus.h>
35 #include <sys/endian.h>
36 #include <sys/malloc.h>
37 #include <sys/lock.h>
38 #include <sys/mutex.h>
39 #include <sys/sema.h>
40 #include <sys/taskqueue.h>
41 #include <vm/uma.h>
42 #include <machine/stdarg.h>
43 #include <machine/resource.h>
44 #include <machine/bus.h>
45 #include <sys/rman.h>
46 #include <dev/pci/pcivar.h>
47 #include <dev/pci/pcireg.h>
48 #include <dev/ata/ata-all.h>
49 #include <dev/ata/ata-pci.h>
50 #include <ata_if.h>
51
52 /* local prototypes */
53 static int ata_cyrix_chipinit(device_t dev);
54 static int ata_cyrix_ch_attach(device_t dev);
55 static int ata_cyrix_setmode(device_t dev, int target, int mode);
56
57 /*
58 * Cyrix chipset support functions
59 */
60 static int
ata_cyrix_probe(device_t dev)61 ata_cyrix_probe(device_t dev)
62 {
63 struct ata_pci_controller *ctlr = device_get_softc(dev);
64
65 if (pci_get_devid(dev) == ATA_CYRIX_5530) {
66 device_set_desc(dev, "Cyrix 5530 ATA33 controller");
67 ctlr->chipinit = ata_cyrix_chipinit;
68 return (BUS_PROBE_LOW_PRIORITY);
69 }
70 return ENXIO;
71 }
72
73 static int
ata_cyrix_chipinit(device_t dev)74 ata_cyrix_chipinit(device_t dev)
75 {
76 struct ata_pci_controller *ctlr = device_get_softc(dev);
77
78 if (ata_setup_interrupt(dev, ata_generic_intr))
79 return ENXIO;
80 ctlr->ch_attach = ata_cyrix_ch_attach;
81 ctlr->setmode = ata_cyrix_setmode;
82 return 0;
83 }
84
85 static int
ata_cyrix_ch_attach(device_t dev)86 ata_cyrix_ch_attach(device_t dev)
87 {
88 struct ata_channel *ch = device_get_softc(dev);
89
90 ch->dma.alignment = 16;
91 ch->dma.max_iosize = 64 * DEV_BSIZE;
92 return (ata_pci_ch_attach(dev));
93 }
94
95 static int
ata_cyrix_setmode(device_t dev,int target,int mode)96 ata_cyrix_setmode(device_t dev, int target, int mode)
97 {
98 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
99 struct ata_channel *ch = device_get_softc(dev);
100 int devno = (ch->unit << 1) + target;
101 int piomode;
102 static const uint32_t piotiming[] =
103 { 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 };
104 static const uint32_t dmatiming[] =
105 { 0x00077771, 0x00012121, 0x00002020 };
106 static const uint32_t udmatiming[] =
107 { 0x00921250, 0x00911140, 0x00911030 };
108
109 mode = min(mode, ATA_UDMA2);
110 /* dont try to set the mode if we dont have the resource */
111 if (ctlr->r_res1) {
112 if (mode >= ATA_UDMA0) {
113 /* Set UDMA timings, and PIO4. */
114 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
115 0x24 + (devno << 3), udmatiming[mode & ATA_MODE_MASK]);
116 piomode = ATA_PIO4;
117 } else if (mode >= ATA_WDMA0) {
118 /* Set WDMA timings, and respective PIO mode. */
119 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
120 0x24 + (devno << 3), dmatiming[mode & ATA_MODE_MASK]);
121 piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
122 (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
123 } else
124 piomode = mode;
125 /* Set PIO mode calculated above. */
126 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
127 0x20 + (devno << 3), piotiming[ata_mode2idx(piomode)]);
128 }
129 return (mode);
130 }
131
132 ATA_DECLARE_DRIVER(ata_cyrix);
133