1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1998 - 2008 S��ren 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/cdefs.h>
30__FBSDID("$FreeBSD$");
31
32#include <sys/param.h>
33#include <sys/module.h>
34#include <sys/systm.h>
35#include <sys/kernel.h>
36#include <sys/ata.h>
37#include <sys/bus.h>
38#include <sys/endian.h>
39#include <sys/malloc.h>
40#include <sys/lock.h>
41#include <sys/mutex.h>
42#include <sys/sema.h>
43#include <sys/taskqueue.h>
44#include <vm/uma.h>
45#include <machine/stdarg.h>
46#include <machine/resource.h>
47#include <machine/bus.h>
48#include <sys/rman.h>
49#include <dev/pci/pcivar.h>
50#include <dev/pci/pcireg.h>
51#include <dev/ata/ata-all.h>
52#include <dev/ata/ata-pci.h>
53#include <ata_if.h>
54
55/* local prototypes */
56static int ata_cyrix_chipinit(device_t dev);
57static int ata_cyrix_ch_attach(device_t dev);
58static int ata_cyrix_setmode(device_t dev, int target, int mode);
59
60/*
61 * Cyrix chipset support functions
62 */
63static int
64ata_cyrix_probe(device_t dev)
65{
66    struct ata_pci_controller *ctlr = device_get_softc(dev);
67
68    if (pci_get_devid(dev) == ATA_CYRIX_5530) {
69	device_set_desc(dev, "Cyrix 5530 ATA33 controller");
70	ctlr->chipinit = ata_cyrix_chipinit;
71	return (BUS_PROBE_LOW_PRIORITY);
72    }
73    return ENXIO;
74}
75
76static int
77ata_cyrix_chipinit(device_t dev)
78{
79    struct ata_pci_controller *ctlr = device_get_softc(dev);
80
81    if (ata_setup_interrupt(dev, ata_generic_intr))
82	return ENXIO;
83    ctlr->ch_attach = ata_cyrix_ch_attach;
84    ctlr->setmode = ata_cyrix_setmode;
85    return 0;
86}
87
88static int
89ata_cyrix_ch_attach(device_t dev)
90{
91	struct ata_channel *ch = device_get_softc(dev);
92
93	ch->dma.alignment = 16;
94	ch->dma.max_iosize = 64 * DEV_BSIZE;
95	return (ata_pci_ch_attach(dev));
96}
97
98static int
99ata_cyrix_setmode(device_t dev, int target, int mode)
100{
101	struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
102	struct ata_channel *ch = device_get_softc(dev);
103	int devno = (ch->unit << 1) + target;
104	int piomode;
105	static const uint32_t piotiming[] =
106	    { 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 };
107	static const uint32_t dmatiming[] =
108	    { 0x00077771, 0x00012121, 0x00002020 };
109	static const uint32_t udmatiming[] =
110	    { 0x00921250, 0x00911140, 0x00911030 };
111
112	mode = min(mode, ATA_UDMA2);
113	/* dont try to set the mode if we dont have the resource */
114	if (ctlr->r_res1) {
115		if (mode >= ATA_UDMA0) {
116			/* Set UDMA timings, and PIO4. */
117			ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
118			    0x24 + (devno << 3), udmatiming[mode & ATA_MODE_MASK]);
119			piomode = ATA_PIO4;
120		} else if (mode >= ATA_WDMA0) {
121			/* Set WDMA timings, and respective PIO mode. */
122			ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
123			    0x24 + (devno << 3), dmatiming[mode & ATA_MODE_MASK]);
124		        piomode = (mode == ATA_WDMA0) ? ATA_PIO0 :
125			    (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4;
126		} else
127			piomode = mode;
128		/* Set PIO mode calculated above. */
129		ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res,
130		    0x20 + (devno << 3), piotiming[ata_mode2idx(piomode)]);
131	}
132	return (mode);
133}
134
135ATA_DECLARE_DRIVER(ata_cyrix);
136