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_cyrix_chipinit(device_t dev); 57 static int ata_cyrix_ch_attach(device_t dev); 58 static int ata_cyrix_setmode(device_t dev, int target, int mode); 59 60 /* 61 * Cyrix chipset support functions 62 */ 63 static int 64 ata_cyrix_probe(device_t dev) 65 { 66 struct ata_pci_controller *ctlr = device_get_softc(dev); 67 68 if (pci_get_devid(dev) == ATA_CYRIX_5530) { 69 device_set_desc(dev, "Cyrix 5530 ATA33 controller"); 70 ctlr->chipinit = ata_cyrix_chipinit; 71 return (BUS_PROBE_LOW_PRIORITY); 72 } 73 return ENXIO; 74 } 75 76 static int 77 ata_cyrix_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 ctlr->ch_attach = ata_cyrix_ch_attach; 84 ctlr->setmode = ata_cyrix_setmode; 85 return 0; 86 } 87 88 static int 89 ata_cyrix_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_cyrix_setmode(device_t dev, int target, int mode) 100 { 101 struct ata_pci_controller *ctlr = device_get_softc(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 { 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 }; 107 static const uint32_t dmatiming[] = 108 { 0x00077771, 0x00012121, 0x00002020 }; 109 static const uint32_t udmatiming[] = 110 { 0x00921250, 0x00911140, 0x00911030 }; 111 112 mode = min(mode, ATA_UDMA2); 113 /* dont try to set the mode if we dont have the resource */ 114 if (ctlr->r_res1) { 115 if (mode >= ATA_UDMA0) { 116 /* Set UDMA timings, and PIO4. */ 117 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res, 118 0x24 + (devno << 3), udmatiming[mode & ATA_MODE_MASK]); 119 piomode = ATA_PIO4; 120 } else if (mode >= ATA_WDMA0) { 121 /* Set WDMA timings, and respective PIO mode. */ 122 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res, 123 0x24 + (devno << 3), dmatiming[mode & ATA_MODE_MASK]); 124 piomode = (mode == ATA_WDMA0) ? ATA_PIO0 : 125 (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4; 126 } else 127 piomode = mode; 128 /* Set PIO mode calculated above. */ 129 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res, 130 0x20 + (devno << 3), piotiming[ata_mode2idx(piomode)]); 131 } 132 return (mode); 133 } 134 135 ATA_DECLARE_DRIVER(ata_cyrix); 136