1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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/param.h> 30 #include <sys/module.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/ata.h> 34 #include <sys/bus.h> 35 #include <sys/endian.h> 36 #include <sys/malloc.h> 37 #include <sys/lock.h> 38 #include <sys/mutex.h> 39 #include <sys/sema.h> 40 #include <sys/taskqueue.h> 41 #include <vm/uma.h> 42 #include <machine/stdarg.h> 43 #include <machine/resource.h> 44 #include <machine/bus.h> 45 #include <sys/rman.h> 46 #include <dev/pci/pcivar.h> 47 #include <dev/pci/pcireg.h> 48 #include <dev/ata/ata-all.h> 49 #include <dev/ata/ata-pci.h> 50 #include <ata_if.h> 51 52 /* local prototypes */ 53 static int ata_cyrix_chipinit(device_t dev); 54 static int ata_cyrix_ch_attach(device_t dev); 55 static int ata_cyrix_setmode(device_t dev, int target, int mode); 56 57 /* 58 * Cyrix chipset support functions 59 */ 60 static int 61 ata_cyrix_probe(device_t dev) 62 { 63 struct ata_pci_controller *ctlr = device_get_softc(dev); 64 65 if (pci_get_devid(dev) == ATA_CYRIX_5530) { 66 device_set_desc(dev, "Cyrix 5530 ATA33 controller"); 67 ctlr->chipinit = ata_cyrix_chipinit; 68 return (BUS_PROBE_LOW_PRIORITY); 69 } 70 return ENXIO; 71 } 72 73 static int 74 ata_cyrix_chipinit(device_t dev) 75 { 76 struct ata_pci_controller *ctlr = device_get_softc(dev); 77 78 if (ata_setup_interrupt(dev, ata_generic_intr)) 79 return ENXIO; 80 ctlr->ch_attach = ata_cyrix_ch_attach; 81 ctlr->setmode = ata_cyrix_setmode; 82 return 0; 83 } 84 85 static int 86 ata_cyrix_ch_attach(device_t dev) 87 { 88 struct ata_channel *ch = device_get_softc(dev); 89 90 ch->dma.alignment = 16; 91 ch->dma.max_iosize = 64 * DEV_BSIZE; 92 return (ata_pci_ch_attach(dev)); 93 } 94 95 static int 96 ata_cyrix_setmode(device_t dev, int target, int mode) 97 { 98 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 99 struct ata_channel *ch = device_get_softc(dev); 100 int devno = (ch->unit << 1) + target; 101 int piomode; 102 static const uint32_t piotiming[] = 103 { 0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010 }; 104 static const uint32_t dmatiming[] = 105 { 0x00077771, 0x00012121, 0x00002020 }; 106 static const uint32_t udmatiming[] = 107 { 0x00921250, 0x00911140, 0x00911030 }; 108 109 mode = min(mode, ATA_UDMA2); 110 /* dont try to set the mode if we dont have the resource */ 111 if (ctlr->r_res1) { 112 if (mode >= ATA_UDMA0) { 113 /* Set UDMA timings, and PIO4. */ 114 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res, 115 0x24 + (devno << 3), udmatiming[mode & ATA_MODE_MASK]); 116 piomode = ATA_PIO4; 117 } else if (mode >= ATA_WDMA0) { 118 /* Set WDMA timings, and respective PIO mode. */ 119 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res, 120 0x24 + (devno << 3), dmatiming[mode & ATA_MODE_MASK]); 121 piomode = (mode == ATA_WDMA0) ? ATA_PIO0 : 122 (mode == ATA_WDMA1) ? ATA_PIO3 : ATA_PIO4; 123 } else 124 piomode = mode; 125 /* Set PIO mode calculated above. */ 126 ATA_OUTL(ch->r_io[ATA_BMCMD_PORT].res, 127 0x20 + (devno << 3), piotiming[ata_mode2idx(piomode)]); 128 } 129 return (mode); 130 } 131 132 ATA_DECLARE_DRIVER(ata_cyrix); 133