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 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/module.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/ata.h> 35 #include <sys/bus.h> 36 #include <sys/endian.h> 37 #include <sys/malloc.h> 38 #include <sys/lock.h> 39 #include <sys/mutex.h> 40 #include <sys/sema.h> 41 #include <sys/taskqueue.h> 42 #include <vm/uma.h> 43 #include <machine/stdarg.h> 44 #include <machine/resource.h> 45 #include <machine/bus.h> 46 #include <sys/rman.h> 47 #include <dev/pci/pcivar.h> 48 #include <dev/pci/pcireg.h> 49 #include <dev/ata/ata-all.h> 50 #include <dev/ata/ata-pci.h> 51 #include <ata_if.h> 52 53 /* local prototypes */ 54 static int ata_national_chipinit(device_t dev); 55 static int ata_national_ch_attach(device_t dev); 56 static int ata_national_setmode(device_t dev, int target, int mode); 57 58 /* 59 * National chipset support functions 60 */ 61 static int 62 ata_national_probe(device_t dev) 63 { 64 struct ata_pci_controller *ctlr = device_get_softc(dev); 65 66 /* this chip is a clone of the Cyrix chip, bugs and all */ 67 if (pci_get_devid(dev) == ATA_SC1100) { 68 device_set_desc(dev, "National Geode SC1100 ATA33 controller"); 69 ctlr->chipinit = ata_national_chipinit; 70 return (BUS_PROBE_DEFAULT); 71 } 72 return ENXIO; 73 } 74 75 static int 76 ata_national_chipinit(device_t dev) 77 { 78 struct ata_pci_controller *ctlr = device_get_softc(dev); 79 80 if (ata_setup_interrupt(dev, ata_generic_intr)) 81 return ENXIO; 82 83 ctlr->ch_attach = ata_national_ch_attach; 84 ctlr->setmode = ata_national_setmode; 85 return 0; 86 } 87 88 static int 89 ata_national_ch_attach(device_t dev) 90 { 91 struct ata_channel *ch = device_get_softc(dev); 92 93 ch->dma.alignment = 16; 94 ch->dma.max_iosize = 64 * DEV_BSIZE; 95 return (ata_pci_ch_attach(dev)); 96 } 97 98 static int 99 ata_national_setmode(device_t dev, int target, int mode) 100 { 101 device_t parent = device_get_parent(dev); 102 struct ata_channel *ch = device_get_softc(dev); 103 int devno = (ch->unit << 1) + target; 104 int piomode; 105 static const uint32_t piotiming[] = 106 { 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010, 107 0x9172d132, 0x20102010, 0x00100010 }; 108 static const uint32_t dmatiming[] = 109 { 0x80077771, 0x80012121, 0x80002020 }; 110 static const uint32_t udmatiming[] = 111 { 0x80921250, 0x80911140, 0x80911030 }; 112 113 mode = min(mode, ATA_UDMA2); 114 115 if (mode >= ATA_UDMA0) { 116 pci_write_config(parent, 0x44 + (devno << 3), 117 udmatiming[mode & ATA_MODE_MASK], 4); 118 piomode = ATA_PIO4; 119 } else if (mode >= ATA_WDMA0) { 120 pci_write_config(parent, 0x44 + (devno << 3), 121 dmatiming[mode & ATA_MODE_MASK], 4); 122 piomode = mode; 123 } else { 124 pci_write_config(parent, 0x44 + (devno << 3), 125 pci_read_config(parent, 0x44 + (devno << 3), 4) | 126 0x80000000, 4); 127 piomode = mode; 128 } 129 pci_write_config(parent, 0x40 + (devno << 3), 130 piotiming[ata_mode2idx(piomode)], 4); 131 return (mode); 132 } 133 134 ATA_DECLARE_DRIVER(ata_national); 135