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 /* local prototypes */
28 static int ata_cypress_chipinit(device_t dev);
29 static void ata_cypress_setmode(device_t dev, int mode);
32 * Cypress chipset support functions
35 ata_cypress_ident(device_t dev)
37 struct ata_pci_controller *ctlr = device_get_softc(dev);
40 * the Cypress chip is a mess, it contains two ATA functions, but
41 * both channels are visible on the first one.
42 * simply ignore the second function for now, as the right
43 * solution (ignoring the second channel on the first function)
44 * doesn't work with the crappy ATA interrupt setup on the alpha.
46 if (pci_get_devid(dev) == ATA_CYPRESS_82C693 &&
47 pci_get_function(dev) == 1 &&
48 pci_get_subclass(dev) == PCIS_STORAGE_IDE) {
49 device_set_desc(dev, "Cypress 82C693 ATA controller");
50 ctlr->chipinit = ata_cypress_chipinit;
57 ata_cypress_chipinit(device_t dev)
59 struct ata_pci_controller *ctlr = device_get_softc(dev);
61 if (ata_setup_interrupt(dev, ata_generic_intr))
64 ctlr->setmode = ata_cypress_setmode;
69 ata_cypress_setmode(device_t dev, int mode)
71 device_t gparent = GRANDPARENT(dev);
72 struct ata_channel *ch = device_get_softc(device_get_parent(dev));
73 struct ata_device *atadev = device_get_softc(dev);
76 mode = ata_limit_mode(dev, mode, ATA_WDMA2);
78 /* XXX SOS missing WDMA0+1 + PIO modes */
79 if (mode == ATA_WDMA2) {
80 error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
82 device_printf(dev, "%ssetting WDMA2 on Cypress chip\n",
83 error ? "FAILURE " : "");
85 pci_write_config(gparent, ch->unit ? 0x4e : 0x4c, 0x2020, 2);
90 /* we could set PIO mode timings, but we assume the BIOS did that */