1 /* $NetBSD: wdc_obio.c,v 1.27 2013/10/25 21:50:28 martin 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 1.27 2013/10/25 21:50:28 martin 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 ata_queue sc_chqueue; 72 struct wdc_regs sc_wdc_regs; 73 void *sc_ih; 74 }; 75 76 int wdc_obio_match(device_t, cfdata_t, void *); 77 void wdc_obio_attach(device_t, device_t, void *); 78 void wdc_obio_intr(void *); 79 80 CFATTACH_DECL_NEW(wdc_obio, sizeof(struct wdc_obio_softc), 81 wdc_obio_match, wdc_obio_attach, NULL, NULL); 82 83 static bus_space_tag_t wdc_obio_isr_tag; 84 static bus_space_handle_t wdc_obio_isr_hdl; 85 static struct ata_channel *ch_sc; 86 87 int 88 wdc_obio_match(device_t parent, cfdata_t match, void *aux) 89 { 90 struct obio_attach_args *oa = (struct obio_attach_args *) aux; 91 struct ata_channel ch; 92 struct wdc_softc wdc; 93 struct wdc_regs wdr; 94 int i, result = 0; 95 96 memset(&wdc, 0, sizeof(wdc)); 97 memset(&ch, 0, sizeof(ch)); 98 ch.ch_atac = &wdc.sc_atac; 99 wdc.regs = &wdr; 100 101 switch (current_mac_model->machineid) { 102 case MACH_MACPB150: 103 case MACH_MACPB190: 104 case MACH_MACPB190CS: 105 case MACH_MACP580: 106 case MACH_MACQ630: 107 wdr.cmd_iot = wdr.ctl_iot = oa->oa_tag; 108 109 if (bus_space_map(wdr.cmd_iot, IDEBase, WDC_OBIO_REG_NPORTS, 110 0, &wdr.cmd_baseioh)) 111 return 0; 112 113 mac68k_bus_space_handle_swapped(wdr.cmd_iot, &wdr.cmd_baseioh); 114 115 for (i = 0; i < WDC_NREG; i++) { 116 if (bus_space_subregion(wdr.cmd_iot, wdr.cmd_baseioh, 117 4 * i, 4, &wdr.cmd_iohs[i]) != 0) { 118 return 0; 119 } 120 } 121 wdc_init_shadow_regs(&ch); 122 123 124 if (bus_space_subregion(wdr.cmd_iot, wdr.cmd_baseioh, 125 WDC_OBIO_AUXREG_OFFSET, 126 WDC_OBIO_AUXREG_NPORTS, 127 &wdr.ctl_ioh)) 128 return 0; 129 130 result = wdcprobe(&ch); 131 132 bus_space_unmap(wdr.cmd_iot, wdr.cmd_baseioh, WDC_OBIO_REG_NPORTS); 133 134 return (result); 135 } 136 return 0; 137 } 138 139 void 140 wdc_obio_attach(device_t parent, device_t self, void *aux) 141 { 142 struct wdc_obio_softc *sc = device_private(self); 143 struct wdc_regs *wdr; 144 struct obio_attach_args *oa = aux; 145 struct ata_channel *chp = &sc->sc_channel; 146 int i; 147 148 sc->sc_wdcdev.sc_atac.atac_dev = self; 149 sc->sc_wdcdev.regs = wdr = &sc->sc_wdc_regs; 150 151 oa->oa_addr = IDEBase; 152 wdr->cmd_iot = wdr->ctl_iot = oa->oa_tag; 153 154 if (bus_space_map(wdr->cmd_iot, oa->oa_addr, 155 WDC_OBIO_REG_NPORTS, 0, &wdr->cmd_baseioh)) { 156 aprint_error_dev(self, "couldn't map registers\n"); 157 return; 158 } 159 160 mac68k_bus_space_handle_swapped(wdr->cmd_iot, 161 &wdr->cmd_baseioh); 162 163 for (i = 0; i < WDC_NREG; i++) { 164 if (bus_space_subregion(wdr->cmd_iot, 165 wdr->cmd_baseioh, 4 * i, 4, 166 &wdr->cmd_iohs[i]) != 0) { 167 aprint_error_dev(self, 168 "unable to subregion control register\n"); 169 return; 170 } 171 } 172 173 if (bus_space_subregion(wdr->cmd_iot, 174 wdr->cmd_baseioh, 175 WDC_OBIO_AUXREG_OFFSET, WDC_OBIO_AUXREG_NPORTS, 176 &wdr->ctl_ioh)) { 177 aprint_error_dev(self, "unable to subregion aux register\n"); 178 return; 179 } 180 181 wdc_obio_isr_tag = oa->oa_tag; 182 183 if (bus_space_map(wdc_obio_isr_tag, 184 oa->oa_addr+WDC_OBIO_ISR_OFFSET, 185 WDC_OBIO_ISR_NPORTS, 0, &wdc_obio_isr_hdl)) { 186 aprint_error_dev(self, " couldn't map intr status register\n"); 187 return; 188 } 189 190 switch (current_mac_model->machineid) { 191 case MACH_MACP580: 192 case MACH_MACQ630: 193 /* 194 * Quadra/Performa IDE generates pseudo Nubus intr at slot F 195 */ 196 aprint_normal(" (Quadra/Performa series IDE interface)"); 197 198 add_nubus_intr(0xf, (void (*)(void*))wdc_obio_intr, (void *)sc); 199 200 break; 201 case MACH_MACPB150: 202 case MACH_MACPB190: 203 case MACH_MACPB190CS: 204 /* 205 * PowerBook IDE generates pseudo NuBus intr at slot C 206 */ 207 aprint_normal(" (PowerBook series IDE interface)"); 208 209 add_nubus_intr(0xc, (void (*)(void*))wdc_obio_intr, (void *)sc); 210 211 break; 212 } 213 214 ch_sc = chp; 215 if (device_cfdata(sc->sc_wdcdev.sc_atac.atac_dev)->cf_flags & 216 ATAC_CAP_NOIRQ) 217 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_NOIRQ; 218 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16; 219 sc->sc_wdcdev.sc_atac.atac_pio_cap = 0; 220 sc->sc_chanlist[0] = chp; 221 sc->sc_wdcdev.sc_atac.atac_channels = sc->sc_chanlist; 222 sc->sc_wdcdev.sc_atac.atac_nchannels = 1; 223 sc->sc_wdcdev.wdc_maxdrives = 2; 224 chp->ch_channel = 0; 225 chp->ch_atac = &sc->sc_wdcdev.sc_atac; 226 chp->ch_queue = &sc->sc_chqueue; 227 wdc_init_shadow_regs(chp); 228 229 aprint_normal("\n"); 230 231 wdcattach(chp); 232 } 233 234 void 235 wdc_obio_intr(void *arg) 236 { 237 unsigned char status; 238 239 status = bus_space_read_1(wdc_obio_isr_tag, 240 wdc_obio_isr_hdl, 0); 241 if (status & 0x20) { 242 wdcintr(ch_sc); 243 bus_space_write_1(wdc_obio_isr_tag, 244 wdc_obio_isr_hdl, 0, status&~0x20); 245 } 246 } 247