wdc_obio.c revision 1.29
1 /* $NetBSD: wdc_obio.c,v 1.29 2017/10/20 07:06:07 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Takeshi Shibagaki All rights reserved. 5 * 6 * mac68k OBIO-IDE attachment created by Takeshi Shibagaki 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 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 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Charles M. Hannum. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: wdc_obio.c,v 1.29 2017/10/20 07:06:07 jdolecek Exp $"); 36 37 #include <sys/types.h> 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/kernel.h> 43 #include <sys/callout.h> 44 45 #include <machine/bus.h> 46 #include <machine/intr.h> 47 #include <machine/cpu.h> 48 #include <machine/viareg.h> 49 50 #include <mac68k/obio/obiovar.h> 51 52 #include <dev/ata/atavar.h> 53 #include <dev/ic/wdcvar.h> 54 55 #define WDC_OBIO_REG_NPORTS 0x40 56 #define WDC_OBIO_AUXREG_OFFSET 0x38 57 #define WDC_OBIO_AUXREG_NPORTS 1 58 #define WDC_OBIO_ISR_OFFSET 0x101 59 #define WDC_OBIO_ISR_NPORTS 1 60 61 static u_long IDEBase = 0x50f1a000; 62 63 /* 64 * XXX This code currently doesn't even try to allow 32-bit data port use. 65 */ 66 67 struct wdc_obio_softc { 68 struct wdc_softc sc_wdcdev; 69 struct ata_channel *sc_chanlist[1]; 70 struct ata_channel sc_channel; 71 struct wdc_regs sc_wdc_regs; 72 void *sc_ih; 73 }; 74 75 int wdc_obio_match(device_t, cfdata_t, void *); 76 void wdc_obio_attach(device_t, device_t, void *); 77 void wdc_obio_intr(void *); 78 79 CFATTACH_DECL_NEW(wdc_obio, sizeof(struct wdc_obio_softc), 80 wdc_obio_match, wdc_obio_attach, NULL, NULL); 81 82 static bus_space_tag_t wdc_obio_isr_tag; 83 static bus_space_handle_t wdc_obio_isr_hdl; 84 static struct ata_channel *ch_sc; 85 86 int 87 wdc_obio_match(device_t parent, cfdata_t match, void *aux) 88 { 89 struct obio_attach_args *oa = (struct obio_attach_args *) aux; 90 struct wdc_regs wdr; 91 int i, result = 0; 92 93 switch (current_mac_model->machineid) { 94 case MACH_MACPB150: 95 case MACH_MACPB190: 96 case MACH_MACPB190CS: 97 case MACH_MACP580: 98 case MACH_MACQ630: 99 wdr.cmd_iot = wdr.ctl_iot = oa->oa_tag; 100 101 if (bus_space_map(wdr.cmd_iot, IDEBase, WDC_OBIO_REG_NPORTS, 102 0, &wdr.cmd_baseioh)) 103 return 0; 104 105 mac68k_bus_space_handle_swapped(wdr.cmd_iot, &wdr.cmd_baseioh); 106 107 for (i = 0; i < WDC_NREG; i++) { 108 if (bus_space_subregion(wdr.cmd_iot, wdr.cmd_baseioh, 109 4 * i, 4, &wdr.cmd_iohs[i]) != 0) { 110 return 0; 111 } 112 } 113 wdc_init_shadow_regs(&wdr); 114 115 116 if (bus_space_subregion(wdr.cmd_iot, wdr.cmd_baseioh, 117 WDC_OBIO_AUXREG_OFFSET, 118 WDC_OBIO_AUXREG_NPORTS, 119 &wdr.ctl_ioh)) 120 return 0; 121 122 result = wdcprobe(&wdr); 123 124 bus_space_unmap(wdr.cmd_iot, wdr.cmd_baseioh, WDC_OBIO_REG_NPORTS); 125 126 return (result); 127 } 128 return 0; 129 } 130 131 void 132 wdc_obio_attach(device_t parent, device_t self, void *aux) 133 { 134 struct wdc_obio_softc *sc = device_private(self); 135 struct wdc_regs *wdr; 136 struct obio_attach_args *oa = aux; 137 struct ata_channel *chp = &sc->sc_channel; 138 int i; 139 140 sc->sc_wdcdev.sc_atac.atac_dev = self; 141 sc->sc_wdcdev.regs = wdr = &sc->sc_wdc_regs; 142 143 oa->oa_addr = IDEBase; 144 wdr->cmd_iot = wdr->ctl_iot = oa->oa_tag; 145 146 if (bus_space_map(wdr->cmd_iot, oa->oa_addr, 147 WDC_OBIO_REG_NPORTS, 0, &wdr->cmd_baseioh)) { 148 aprint_error_dev(self, "couldn't map registers\n"); 149 return; 150 } 151 152 mac68k_bus_space_handle_swapped(wdr->cmd_iot, 153 &wdr->cmd_baseioh); 154 155 for (i = 0; i < WDC_NREG; i++) { 156 if (bus_space_subregion(wdr->cmd_iot, 157 wdr->cmd_baseioh, 4 * i, 4, 158 &wdr->cmd_iohs[i]) != 0) { 159 aprint_error_dev(self, 160 "unable to subregion control register\n"); 161 return; 162 } 163 } 164 165 if (bus_space_subregion(wdr->cmd_iot, 166 wdr->cmd_baseioh, 167 WDC_OBIO_AUXREG_OFFSET, WDC_OBIO_AUXREG_NPORTS, 168 &wdr->ctl_ioh)) { 169 aprint_error_dev(self, "unable to subregion aux register\n"); 170 return; 171 } 172 173 wdc_obio_isr_tag = oa->oa_tag; 174 175 if (bus_space_map(wdc_obio_isr_tag, 176 oa->oa_addr+WDC_OBIO_ISR_OFFSET, 177 WDC_OBIO_ISR_NPORTS, 0, &wdc_obio_isr_hdl)) { 178 aprint_error_dev(self, " couldn't map intr status register\n"); 179 return; 180 } 181 182 switch (current_mac_model->machineid) { 183 case MACH_MACP580: 184 case MACH_MACQ630: 185 /* 186 * Quadra/Performa IDE generates pseudo Nubus intr at slot F 187 */ 188 aprint_normal(" (Quadra/Performa series IDE interface)"); 189 190 add_nubus_intr(0xf, (void (*)(void*))wdc_obio_intr, (void *)sc); 191 192 break; 193 case MACH_MACPB150: 194 case MACH_MACPB190: 195 case MACH_MACPB190CS: 196 /* 197 * PowerBook IDE generates pseudo NuBus intr at slot C 198 */ 199 aprint_normal(" (PowerBook series IDE interface)"); 200 201 add_nubus_intr(0xc, (void (*)(void*))wdc_obio_intr, (void *)sc); 202 203 break; 204 } 205 206 ch_sc = chp; 207 if (device_cfdata(sc->sc_wdcdev.sc_atac.atac_dev)->cf_flags & 208 ATAC_CAP_NOIRQ) 209 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_NOIRQ; 210 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16; 211 sc->sc_wdcdev.sc_atac.atac_pio_cap = 0; 212 sc->sc_chanlist[0] = chp; 213 sc->sc_wdcdev.sc_atac.atac_channels = sc->sc_chanlist; 214 sc->sc_wdcdev.sc_atac.atac_nchannels = 1; 215 sc->sc_wdcdev.wdc_maxdrives = 2; 216 chp->ch_channel = 0; 217 chp->ch_atac = &sc->sc_wdcdev.sc_atac; 218 219 wdc_init_shadow_regs(wdr); 220 221 aprint_normal("\n"); 222 223 wdcattach(chp); 224 } 225 226 void 227 wdc_obio_intr(void *arg) 228 { 229 unsigned char status; 230 231 status = bus_space_read_1(wdc_obio_isr_tag, 232 wdc_obio_isr_hdl, 0); 233 if (status & 0x20) { 234 wdcintr(ch_sc); 235 bus_space_write_1(wdc_obio_isr_tag, 236 wdc_obio_isr_hdl, 0, status&~0x20); 237 } 238 } 239
Indexes created Mon Sep 29 21:09:56 GMT 2025