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 /* local prototypes */
28 static int ata_micron_chipinit(device_t dev);
29 static void ata_micron_setmode(device_t dev, int mode);
30 
31 /*
32  * Micron chipset support functions
33  */
34 int
35 ata_micron_ident(device_t dev)
36 {
37     struct ata_pci_controller *ctlr = device_get_softc(dev);
38 
39     if (pci_get_devid(dev) == ATA_MICRON_RZ1000 ||
40 	pci_get_devid(dev) == ATA_MICRON_RZ1001) {
41 	device_set_desc(dev,
42 	    "RZ 100? ATA controller !WARNING! data loss/corruption risk");
43 	ctlr->chipinit = ata_micron_chipinit;
44 	return 0;
45     }
46     else
47 	return ENXIO;
48 }
49 
50 static int
51 ata_micron_chipinit(device_t dev)
52 {
53     struct ata_pci_controller *ctlr = device_get_softc(dev);
54 
55     if (ata_setup_interrupt(dev, ata_generic_intr))
56 	return ENXIO;
57 
58     ctlr->setmode = ata_micron_setmode;
59     return 0;
60 }
61 
62 static void
63 ata_micron_setmode(device_t dev, int mode)
64 {
65     struct ata_device *atadev = device_get_softc(dev);
66 
67     mode = ata_limit_mode(dev, mode, ATA_UDMA2);
68     mode = ata_check_80pin(dev, mode);
69     if (!ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode))
70 	atadev->mode = mode;
71 }