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_national_chipinit(device_t dev);
54 static int ata_national_ch_attach(device_t dev);
55 static int ata_national_setmode(device_t dev, int target, int mode);
56
57 /*
58 * National chipset support functions
59 */
60 static int
ata_national_probe(device_t dev)61 ata_national_probe(device_t dev)
62 {
63 struct ata_pci_controller *ctlr = device_get_softc(dev);
64
65 /* this chip is a clone of the Cyrix chip, bugs and all */
66 if (pci_get_devid(dev) == ATA_SC1100) {
67 device_set_desc(dev, "National Geode SC1100 ATA33 controller");
68 ctlr->chipinit = ata_national_chipinit;
69 return (BUS_PROBE_LOW_PRIORITY);
70 }
71 return ENXIO;
72 }
73
74 static int
ata_national_chipinit(device_t dev)75 ata_national_chipinit(device_t dev)
76 {
77 struct ata_pci_controller *ctlr = device_get_softc(dev);
78
79 if (ata_setup_interrupt(dev, ata_generic_intr))
80 return ENXIO;
81
82 ctlr->ch_attach = ata_national_ch_attach;
83 ctlr->setmode = ata_national_setmode;
84 return 0;
85 }
86
87 static int
ata_national_ch_attach(device_t dev)88 ata_national_ch_attach(device_t dev)
89 {
90 struct ata_channel *ch = device_get_softc(dev);
91
92 ch->dma.alignment = 16;
93 ch->dma.max_iosize = 64 * DEV_BSIZE;
94 return (ata_pci_ch_attach(dev));
95 }
96
97 static int
ata_national_setmode(device_t dev,int target,int mode)98 ata_national_setmode(device_t dev, int target, int mode)
99 {
100 device_t parent = device_get_parent(dev);
101 struct ata_channel *ch = device_get_softc(dev);
102 int devno = (ch->unit << 1) + target;
103 int piomode;
104 static const uint32_t piotiming[] =
105 { 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010,
106 0x9172d132, 0x20102010, 0x00100010 };
107 static const uint32_t dmatiming[] =
108 { 0x80077771, 0x80012121, 0x80002020 };
109 static const uint32_t udmatiming[] =
110 { 0x80921250, 0x80911140, 0x80911030 };
111
112 mode = min(mode, ATA_UDMA2);
113
114 if (mode >= ATA_UDMA0) {
115 pci_write_config(parent, 0x44 + (devno << 3),
116 udmatiming[mode & ATA_MODE_MASK], 4);
117 piomode = ATA_PIO4;
118 } else if (mode >= ATA_WDMA0) {
119 pci_write_config(parent, 0x44 + (devno << 3),
120 dmatiming[mode & ATA_MODE_MASK], 4);
121 piomode = mode;
122 } else {
123 pci_write_config(parent, 0x44 + (devno << 3),
124 pci_read_config(parent, 0x44 + (devno << 3), 4) |
125 0x80000000, 4);
126 piomode = mode;
127 }
128 pci_write_config(parent, 0x40 + (devno << 3),
129 piotiming[ata_mode2idx(piomode)], 4);
130 return (mode);
131 }
132
133 ATA_DECLARE_DRIVER(ata_national);
134