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_acard_chipinit(device_t dev); 57 static int ata_acard_ch_attach(device_t dev); 58 static int ata_acard_status(device_t dev); 59 static int ata_acard_850_setmode(device_t dev, int target, int mode); 60 static int ata_acard_86X_setmode(device_t dev, int target, int mode); 61 62 /* misc defines */ 63 #define ATP_OLD 1 64 65 /* 66 * Acard chipset support functions 67 */ 68 static int 69 ata_acard_probe(device_t dev) 70 { 71 struct ata_pci_controller *ctlr = device_get_softc(dev); 72 static const struct ata_chip_id ids[] = 73 {{ ATA_ATP850R, 0, ATP_OLD, 0x00, ATA_UDMA2, "ATP850" }, 74 { ATA_ATP860A, 0, 0, 0x00, ATA_UDMA4, "ATP860A" }, 75 { ATA_ATP860R, 0, 0, 0x00, ATA_UDMA4, "ATP860R" }, 76 { ATA_ATP865A, 0, 0, 0x00, ATA_UDMA6, "ATP865A" }, 77 { ATA_ATP865R, 0, 0, 0x00, ATA_UDMA6, "ATP865R" }, 78 { 0, 0, 0, 0, 0, 0}}; 79 80 if (pci_get_vendor(dev) != ATA_ACARD_ID) 81 return ENXIO; 82 83 if (!(ctlr->chip = ata_match_chip(dev, ids))) 84 return ENXIO; 85 86 ata_set_desc(dev); 87 ctlr->chipinit = ata_acard_chipinit; 88 return (BUS_PROBE_LOW_PRIORITY); 89 } 90 91 static int 92 ata_acard_chipinit(device_t dev) 93 { 94 struct ata_pci_controller *ctlr = device_get_softc(dev); 95 96 if (ata_setup_interrupt(dev, ata_generic_intr)) 97 return ENXIO; 98 99 ctlr->ch_attach = ata_acard_ch_attach; 100 ctlr->ch_detach = ata_pci_ch_detach; 101 if (ctlr->chip->cfg1 == ATP_OLD) { 102 ctlr->setmode = ata_acard_850_setmode; 103 /* Work around the lack of channel serialization in ATA_CAM. */ 104 ctlr->channels = 1; 105 device_printf(dev, "second channel ignored\n"); 106 } 107 else 108 ctlr->setmode = ata_acard_86X_setmode; 109 return 0; 110 } 111 112 static int 113 ata_acard_ch_attach(device_t dev) 114 { 115 struct ata_channel *ch = device_get_softc(dev); 116 117 /* setup the usual register normal pci style */ 118 if (ata_pci_ch_attach(dev)) 119 return ENXIO; 120 121 ch->hw.status = ata_acard_status; 122 ch->flags |= ATA_NO_ATAPI_DMA; 123 return 0; 124 } 125 126 static int 127 ata_acard_status(device_t dev) 128 { 129 struct ata_channel *ch = device_get_softc(dev); 130 131 if (ch->dma.flags & ATA_DMA_ACTIVE) { 132 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 133 134 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 135 ATA_BMSTAT_INTERRUPT) 136 return 0; 137 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 138 DELAY(1); 139 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 140 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 141 DELAY(1); 142 } 143 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 144 DELAY(100); 145 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 146 return 0; 147 } 148 return 1; 149 } 150 151 static int 152 ata_acard_850_setmode(device_t dev, int target, int mode) 153 { 154 device_t parent = device_get_parent(dev); 155 struct ata_pci_controller *ctlr = device_get_softc(parent); 156 struct ata_channel *ch = device_get_softc(dev); 157 int devno = (ch->unit << 1) + target; 158 159 mode = min(mode, ctlr->chip->max_dma); 160 /* XXX SOS missing WDMA0+1 + PIO modes */ 161 if (mode >= ATA_WDMA2) { 162 u_int8_t reg54 = pci_read_config(parent, 0x54, 1); 163 164 reg54 &= ~(0x03 << (devno << 1)); 165 if (mode >= ATA_UDMA0) 166 reg54 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 1)); 167 pci_write_config(parent, 0x54, reg54, 1); 168 pci_write_config(parent, 0x4a, 0xa6, 1); 169 pci_write_config(parent, 0x40 + (devno << 1), 0x0301, 2); 170 } 171 /* we could set PIO mode timings, but we assume the BIOS did that */ 172 return (mode); 173 } 174 175 static int 176 ata_acard_86X_setmode(device_t dev, int target, int mode) 177 { 178 device_t parent = device_get_parent(dev); 179 struct ata_pci_controller *ctlr = device_get_softc(parent); 180 struct ata_channel *ch = device_get_softc(dev); 181 int devno = (ch->unit << 1) + target; 182 183 mode = min(mode, ctlr->chip->max_dma); 184 /* XXX SOS missing WDMA0+1 + PIO modes */ 185 if (mode >= ATA_WDMA2) { 186 u_int16_t reg44 = pci_read_config(parent, 0x44, 2); 187 188 reg44 &= ~(0x000f << (devno << 2)); 189 if (mode >= ATA_UDMA0) 190 reg44 |= (((mode & ATA_MODE_MASK) + 1) << (devno << 2)); 191 pci_write_config(parent, 0x44, reg44, 2); 192 pci_write_config(parent, 0x4a, 0xa6, 1); 193 pci_write_config(parent, 0x40 + devno, 0x31, 1); 194 } 195 /* we could set PIO mode timings, but we assume the BIOS did that */ 196 return (mode); 197 } 198 199 ATA_DECLARE_DRIVER(ata_acard); 200