1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/module.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/ata.h> 37 #include <sys/bus.h> 38 #include <sys/endian.h> 39 #include <sys/malloc.h> 40 #include <sys/lock.h> 41 #include <sys/mutex.h> 42 #include <sys/sema.h> 43 #include <sys/taskqueue.h> 44 #include <vm/uma.h> 45 #include <machine/stdarg.h> 46 #include <machine/resource.h> 47 #include <machine/bus.h> 48 #include <sys/rman.h> 49 #include <dev/pci/pcivar.h> 50 #include <dev/pci/pcireg.h> 51 #include <dev/ata/ata-all.h> 52 #include <dev/ata/ata-pci.h> 53 #include <ata_if.h> 54 55 /* local prototypes */ 56 static int ata_national_chipinit(device_t dev); 57 static int ata_national_ch_attach(device_t dev); 58 static int ata_national_setmode(device_t dev, int target, int mode); 59 60 /* 61 * National chipset support functions 62 */ 63 static int 64 ata_national_probe(device_t dev) 65 { 66 struct ata_pci_controller *ctlr = device_get_softc(dev); 67 68 /* this chip is a clone of the Cyrix chip, bugs and all */ 69 if (pci_get_devid(dev) == ATA_SC1100) { 70 device_set_desc(dev, "National Geode SC1100 ATA33 controller"); 71 ctlr->chipinit = ata_national_chipinit; 72 return (BUS_PROBE_LOW_PRIORITY); 73 } 74 return ENXIO; 75 } 76 77 static int 78 ata_national_chipinit(device_t dev) 79 { 80 struct ata_pci_controller *ctlr = device_get_softc(dev); 81 82 if (ata_setup_interrupt(dev, ata_generic_intr)) 83 return ENXIO; 84 85 ctlr->ch_attach = ata_national_ch_attach; 86 ctlr->setmode = ata_national_setmode; 87 return 0; 88 } 89 90 static int 91 ata_national_ch_attach(device_t dev) 92 { 93 struct ata_channel *ch = device_get_softc(dev); 94 95 ch->dma.alignment = 16; 96 ch->dma.max_iosize = 64 * DEV_BSIZE; 97 return (ata_pci_ch_attach(dev)); 98 } 99 100 static int 101 ata_national_setmode(device_t dev, int target, int mode) 102 { 103 device_t parent = device_get_parent(dev); 104 struct ata_channel *ch = device_get_softc(dev); 105 int devno = (ch->unit << 1) + target; 106 int piomode; 107 static const uint32_t piotiming[] = 108 { 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010, 109 0x9172d132, 0x20102010, 0x00100010 }; 110 static const uint32_t dmatiming[] = 111 { 0x80077771, 0x80012121, 0x80002020 }; 112 static const uint32_t udmatiming[] = 113 { 0x80921250, 0x80911140, 0x80911030 }; 114 115 mode = min(mode, ATA_UDMA2); 116 117 if (mode >= ATA_UDMA0) { 118 pci_write_config(parent, 0x44 + (devno << 3), 119 udmatiming[mode & ATA_MODE_MASK], 4); 120 piomode = ATA_PIO4; 121 } else if (mode >= ATA_WDMA0) { 122 pci_write_config(parent, 0x44 + (devno << 3), 123 dmatiming[mode & ATA_MODE_MASK], 4); 124 piomode = mode; 125 } else { 126 pci_write_config(parent, 0x44 + (devno << 3), 127 pci_read_config(parent, 0x44 + (devno << 3), 4) | 128 0x80000000, 4); 129 piomode = mode; 130 } 131 pci_write_config(parent, 0x40 + (devno << 3), 132 piotiming[ata_mode2idx(piomode)], 4); 133 return (mode); 134 } 135 136 ATA_DECLARE_DRIVER(ata_national); 137