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("$FreeBSD$"); 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 */ 55 static int ata_national_chipinit(device_t dev); 56 static int ata_national_ch_attach(device_t dev); 57 static int ata_national_setmode(device_t dev, int target, int mode); 58 59 /* 60 * National chipset support functions 61 */ 62 static int 63 ata_national_probe(device_t dev) 64 { 65 struct ata_pci_controller *ctlr = device_get_softc(dev); 66 67 /* this chip is a clone of the Cyrix chip, bugs and all */ 68 if (pci_get_devid(dev) == ATA_SC1100) { 69 device_set_desc(dev, "National Geode SC1100 ATA33 controller"); 70 ctlr->chipinit = ata_national_chipinit; 71 return (BUS_PROBE_DEFAULT); 72 } 73 return ENXIO; 74 } 75 76 static int 77 ata_national_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 84 ctlr->ch_attach = ata_national_ch_attach; 85 ctlr->setmode = ata_national_setmode; 86 return 0; 87 } 88 89 static int 90 ata_national_ch_attach(device_t dev) 91 { 92 struct ata_channel *ch = device_get_softc(dev); 93 94 ch->dma.alignment = 16; 95 ch->dma.max_iosize = 64 * DEV_BSIZE; 96 return (ata_pci_ch_attach(dev)); 97 } 98 99 static int 100 ata_national_setmode(device_t dev, int target, int mode) 101 { 102 device_t parent = device_get_parent(dev); 103 struct ata_channel *ch = device_get_softc(dev); 104 int devno = (ch->unit << 1) + target; 105 int piomode; 106 u_int32_t piotiming[] = 107 { 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010, 108 0x9172d132, 0x20102010, 0x00100010 }; 109 u_int32_t dmatiming[] = { 0x80077771, 0x80012121, 0x80002020 }; 110 u_int32_t udmatiming[] = { 0x80921250, 0x80911140, 0x80911030 }; 111 112 mode = min(mode, ATA_UDMA2); 113 114 if (mode >= ATA_UDMA0) { 115 pci_write_config(parent, 0x44 + (devno << 3), 116 udmatiming[mode & ATA_MODE_MASK], 4); 117 piomode = ATA_PIO4; 118 } else if (mode >= ATA_WDMA0) { 119 pci_write_config(parent, 0x44 + (devno << 3), 120 dmatiming[mode & ATA_MODE_MASK], 4); 121 piomode = mode; 122 } else { 123 pci_write_config(parent, 0x44 + (devno << 3), 124 pci_read_config(parent, 0x44 + (devno << 3), 4) | 125 0x80000000, 4); 126 piomode = mode; 127 } 128 pci_write_config(parent, 0x40 + (devno << 3), 129 piotiming[ata_mode2idx(piomode)], 4); 130 return (mode); 131 } 132 133 ATA_DECLARE_DRIVER(ata_national); 134