1183724Ssos/*- 2230132Suqs * Copyright (c) 1998 - 2008 S��ren Schmidt <sos@FreeBSD.org> 3183724Ssos * All rights reserved. 4183724Ssos * 5183724Ssos * Redistribution and use in source and binary forms, with or without 6183724Ssos * modification, are permitted provided that the following conditions 7183724Ssos * are met: 8183724Ssos * 1. Redistributions of source code must retain the above copyright 9183724Ssos * notice, this list of conditions and the following disclaimer, 10183724Ssos * without modification, immediately at the beginning of the file. 11183724Ssos * 2. Redistributions in binary form must reproduce the above copyright 12183724Ssos * notice, this list of conditions and the following disclaimer in the 13183724Ssos * documentation and/or other materials provided with the distribution. 14183724Ssos * 15183724Ssos * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16183724Ssos * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17183724Ssos * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18183724Ssos * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19183724Ssos * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20183724Ssos * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21183724Ssos * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22183724Ssos * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23183724Ssos * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24183724Ssos * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25183724Ssos */ 26183724Ssos 27183724Ssos#include <sys/cdefs.h> 28183724Ssos__FBSDID("$FreeBSD$"); 29183724Ssos 30183724Ssos#include <sys/param.h> 31183724Ssos#include <sys/module.h> 32183724Ssos#include <sys/systm.h> 33183724Ssos#include <sys/kernel.h> 34183724Ssos#include <sys/ata.h> 35183724Ssos#include <sys/bus.h> 36183724Ssos#include <sys/endian.h> 37183724Ssos#include <sys/malloc.h> 38183724Ssos#include <sys/lock.h> 39183724Ssos#include <sys/mutex.h> 40183724Ssos#include <sys/sema.h> 41183724Ssos#include <sys/taskqueue.h> 42183724Ssos#include <vm/uma.h> 43183724Ssos#include <machine/stdarg.h> 44183724Ssos#include <machine/resource.h> 45183724Ssos#include <machine/bus.h> 46183724Ssos#include <sys/rman.h> 47183724Ssos#include <dev/pci/pcivar.h> 48183724Ssos#include <dev/pci/pcireg.h> 49183724Ssos#include <dev/ata/ata-all.h> 50183724Ssos#include <dev/ata/ata-pci.h> 51183724Ssos#include <ata_if.h> 52183724Ssos 53183724Ssos/* local prototypes */ 54183724Ssosstatic int ata_cypress_chipinit(device_t dev); 55200171Smavstatic int ata_cypress_setmode(device_t dev, int target, int mode); 56183724Ssos 57183724Ssos 58183724Ssos/* 59183724Ssos * Cypress chipset support functions 60183724Ssos */ 61183724Ssosstatic int 62183724Ssosata_cypress_probe(device_t dev) 63183724Ssos{ 64183724Ssos struct ata_pci_controller *ctlr = device_get_softc(dev); 65183724Ssos 66183724Ssos /* 67183724Ssos * the Cypress chip is a mess, it contains two ATA functions, but 68183724Ssos * both channels are visible on the first one. 69183724Ssos * simply ignore the second function for now, as the right 70183724Ssos * solution (ignoring the second channel on the first function) 71183724Ssos * doesn't work with the crappy ATA interrupt setup on the alpha. 72183724Ssos */ 73183724Ssos if (pci_get_devid(dev) == ATA_CYPRESS_82C693 && 74183724Ssos pci_get_function(dev) == 1 && 75183724Ssos pci_get_subclass(dev) == PCIS_STORAGE_IDE) { 76183724Ssos device_set_desc(dev, "Cypress 82C693 ATA controller"); 77183724Ssos ctlr->chipinit = ata_cypress_chipinit; 78281140Smav return (BUS_PROBE_LOW_PRIORITY); 79183724Ssos } 80183724Ssos return ENXIO; 81183724Ssos} 82183724Ssos 83183724Ssosstatic int 84183724Ssosata_cypress_chipinit(device_t dev) 85183724Ssos{ 86183724Ssos struct ata_pci_controller *ctlr = device_get_softc(dev); 87183724Ssos 88183724Ssos if (ata_setup_interrupt(dev, ata_generic_intr)) 89183724Ssos return ENXIO; 90183724Ssos 91183724Ssos ctlr->setmode = ata_cypress_setmode; 92183724Ssos return 0; 93183724Ssos} 94183724Ssos 95200171Smavstatic int 96200171Smavata_cypress_setmode(device_t dev, int target, int mode) 97183724Ssos{ 98200171Smav device_t parent = device_get_parent(dev); 99200171Smav struct ata_channel *ch = device_get_softc(dev); 100183724Ssos 101200171Smav mode = min(mode, ATA_WDMA2); 102183724Ssos 103200171Smav /* XXX SOS missing WDMA0+1 + PIO modes */ 104200171Smav if (mode == ATA_WDMA2) { 105200171Smav pci_write_config(parent, ch->unit ? 0x4e : 0x4c, 0x2020, 2); 106183724Ssos } 107200171Smav /* we could set PIO mode timings, but we assume the BIOS did that */ 108200171Smav return (mode); 109183724Ssos} 110183724Ssos 111183724SsosATA_DECLARE_DRIVER(ata_cypress); 112