2 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/module.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
36 #include <sys/endian.h>
37 #include <sys/malloc.h>
39 #include <sys/mutex.h>
41 #include <sys/taskqueue.h>
43 #include <machine/stdarg.h>
44 #include <machine/resource.h>
45 #include <machine/bus.h>
47 #include <dev/pci/pcivar.h>
48 #include <dev/pci/pcireg.h>
49 #include <dev/ata/ata-all.h>
50 #include <dev/ata/ata-pci.h>
53 /* local prototypes */
54 static int ata_national_chipinit(device_t dev);
55 static int ata_national_ch_attach(device_t dev);
56 static int ata_national_setmode(device_t dev, int target, int mode);
59 * National chipset support functions
62 ata_national_probe(device_t dev)
64 struct ata_pci_controller *ctlr = device_get_softc(dev);
66 /* this chip is a clone of the Cyrix chip, bugs and all */
67 if (pci_get_devid(dev) == ATA_SC1100) {
68 device_set_desc(dev, "National Geode SC1100 ATA33 controller");
69 ctlr->chipinit = ata_national_chipinit;
70 return (BUS_PROBE_DEFAULT);
76 ata_national_chipinit(device_t dev)
78 struct ata_pci_controller *ctlr = device_get_softc(dev);
80 if (ata_setup_interrupt(dev, ata_generic_intr))
83 ctlr->ch_attach = ata_national_ch_attach;
84 ctlr->setmode = ata_national_setmode;
89 ata_national_ch_attach(device_t dev)
91 struct ata_channel *ch = device_get_softc(dev);
93 ch->dma.alignment = 16;
94 ch->dma.max_iosize = 64 * DEV_BSIZE;
95 return (ata_pci_ch_attach(dev));
99 ata_national_setmode(device_t dev, int target, int mode)
101 device_t parent = device_get_parent(dev);
102 struct ata_channel *ch = device_get_softc(dev);
103 int devno = (ch->unit << 1) + target;
105 static const uint32_t piotiming[] =
106 { 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010,
107 0x9172d132, 0x20102010, 0x00100010 };
108 static const uint32_t dmatiming[] =
109 { 0x80077771, 0x80012121, 0x80002020 };
110 static const uint32_t udmatiming[] =
111 { 0x80921250, 0x80911140, 0x80911030 };
113 mode = min(mode, ATA_UDMA2);
115 if (mode >= ATA_UDMA0) {
116 pci_write_config(parent, 0x44 + (devno << 3),
117 udmatiming[mode & ATA_MODE_MASK], 4);
119 } else if (mode >= ATA_WDMA0) {
120 pci_write_config(parent, 0x44 + (devno << 3),
121 dmatiming[mode & ATA_MODE_MASK], 4);
124 pci_write_config(parent, 0x44 + (devno << 3),
125 pci_read_config(parent, 0x44 + (devno << 3), 4) |
129 pci_write_config(parent, 0x40 + (devno << 3),
130 piotiming[ata_mode2idx(piomode)], 4);
134 ATA_DECLARE_DRIVER(ata_national);