ata-micron.c revision 194893 
1/*-
2 * Copyright (c) 1998 - 2008 S�ren 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: head/sys/dev/ata/chipsets/ata-micron.c 194893 2009-06-24 19:49:18Z mav $");
29
30#include "opt_ata.h"
31#include <sys/param.h>
32#include <sys/module.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/ata.h>
36#include <sys/bus.h>
37#include <sys/endian.h>
38#include <sys/malloc.h>
39#include <sys/lock.h>
40#include <sys/mutex.h>
41#include <sys/sema.h>
42#include <sys/taskqueue.h>
43#include <vm/uma.h>
44#include <machine/stdarg.h>
45#include <machine/resource.h>
46#include <machine/bus.h>
47#include <sys/rman.h>
48#include <dev/pci/pcivar.h>
49#include <dev/pci/pcireg.h>
50#include <dev/ata/ata-all.h>
51#include <dev/ata/ata-pci.h>
52#include <ata_if.h>
53
54/* local prototypes */
55static int ata_micron_chipinit(device_t dev);
56static void ata_micron_setmode(device_t dev, int mode);
57
58
59/*
60 * Cenatek chipset support functions
61 */
62static int
63ata_micron_probe(device_t dev)
64{
65    struct ata_pci_controller *ctlr = device_get_softc(dev);
66
67    if (pci_get_devid(dev) == ATA_MICRON_RZ1000 ||
68	pci_get_devid(dev) == ATA_MICRON_RZ1001) {
69	device_set_desc(dev,
70	    "RZ 100? ATA controller !WARNING! data loss/corruption risk");
71	ctlr->chipinit = ata_micron_chipinit;
72	return (BUS_PROBE_DEFAULT);
73    }
74    else
75	return ENXIO;
76}
77
78static int
79ata_micron_chipinit(device_t dev)
80{
81    struct ata_pci_controller *ctlr = device_get_softc(dev);
82
83    if (ata_setup_interrupt(dev, ata_generic_intr))
84	return ENXIO;
85
86    ctlr->setmode = ata_micron_setmode;
87    return 0;
88}
89
90static void
91ata_micron_setmode(device_t dev, int mode)
92{
93    struct ata_device *atadev = device_get_softc(dev);
94
95    mode = ata_limit_mode(dev, mode, ATA_UDMA2);
96    mode = ata_check_80pin(dev, mode);
97    if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
98	atadev->mode = mode;
99}
100
101ATA_DECLARE_DRIVER(ata_micron);
102