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#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <sys/param.h>
31#include <sys/module.h>
32#include <sys/systm.h>
33#include <sys/kernel.h>
34#include <sys/ata.h>
35#include <sys/bus.h>
36#include <sys/endian.h>
37#include <sys/malloc.h>
38#include <sys/lock.h>
39#include <sys/mutex.h>
40#include <sys/sema.h>
41#include <sys/taskqueue.h>
42#include <vm/uma.h>
43#include <machine/stdarg.h>
44#include <machine/resource.h>
45#include <machine/bus.h>
46#include <sys/rman.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>
51#include <ata_if.h>
52
53/* local prototypes */
54static int ata_cyrix_chipinit(device_t dev);
55static int ata_cyrix_ch_attach(device_t dev);
56static int ata_cyrix_setmode(device_t dev, int target, int mode);
57
58/*
59 * Cyrix chipset support functions
60 */
61static int
62ata_cyrix_probe(device_t dev)
63{
64    struct ata_pci_controller *ctlr = device_get_softc(dev);
65
66    if (pci_get_devid(dev) == ATA_CYRIX_5530) {
67	device_set_desc(dev, "Cyrix 5530 ATA33 controller");
68	ctlr->chipinit = ata_cyrix_chipinit;
69	return (BUS_PROBE_LOW_PRIORITY);
70    }
71    return ENXIO;
72}
73
74static int
75ata_cyrix_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    ctlr->ch_attach = ata_cyrix_ch_attach;
82    ctlr->setmode = ata_cyrix_setmode;
83    return 0;
84}
85
86static int
87ata_cyrix_ch_attach(device_t dev)
88{
89	struct ata_channel *ch = device_get_softc(dev);
90
91	ch->dma.alignment = 16;
92	ch->dma.max_iosize = 64 * DEV_BSIZE;
93	return (ata_pci_ch_attach(dev));
94}
95
96static int
97ata_cyrix_setmode(device_t dev, int target, int mode)
98{
99	struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
100	struct ata_channel *ch = device_get_softc(dev);
101	int devno = (ch->unit << 1) + target;
102	int piomode;
103	static const uint32_t piotiming[] =
104	    { 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 };
105	static const uint32_t dmatiming[] =
106	    { 0x00077771, 0x00012121, 0x00002020 };
107	static const uint32_t udmatiming[] =
108	    { 0x00921250, 0x00911140, 0x00911030 };
109
110	mode = min(mode, ATA_UDMA2);
111	/* dont try to set the mode if we dont have the resource */
112	if (ctlr->r_res1) {
113		if (mode >= ATA_UDMA0) {
114			/* Set UDMA timings, and PIO4. */
115			ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
116			    0x24 + (devno << 3), udmatiming[mode & ATA_MODE_MASK]);
117			piomode = ATA_PIO4;
118		} else if (mode >= ATA_WDMA0) {
119			/* Set WDMA timings, and respective PIO mode. */
120			ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
121			    0x24 + (devno << 3), dmatiming[mode & ATA_MODE_MASK]);
122		        piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
123			    (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
124		} else
125			piomode = mode;
126		/* Set PIO mode calculated above. */
127		ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
128		    0x20 + (devno << 3), piotiming[ata_mode2idx(piomode)]);
129	}
130	return (mode);
131}
132
133ATA_DECLARE_DRIVER(ata_cyrix);
134