1 /* $NetBSD: wdc_obio.c,v 1.3 2002/10/02 05:36:39 thorpej 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/types.h> 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 #include <sys/malloc.h> 39 #include <sys/kernel.h> 40 #include <sys/callout.h> 41 42 #include <machine/bus.h> 43 #include <machine/intr.h> 44 #include <machine/cpu.h> 45 #include <machine/viareg.h> 46 47 #include <mac68k/obio/obiovar.h> 48 49 #include <dev/ata/atavar.h> 50 #include <dev/ic/wdcvar.h> 51 52 #define WDC_OBIO_REG_NPORTS (8<<3) 53 #define WDC_OBIO_AUXREG_OFFSET 0x38 54 #define WDC_OBIO_AUXREG_NPORTS 1 55 #define WDC_OBIO_ISR_OFFSET 0x101 56 #define WDC_OBIO_ISR_NPORTS 1 57 58 static u_long IDEBase = 0x50f1a000; 59 60 /* 61 * XXX This code currently doesn't even try to allow 32-bit data port use. 62 */ 63 64 struct wdc_obio_softc { 65 struct wdc_softc sc_wdcdev; 66 struct channel_softc *wdc_chanptr; 67 struct channel_softc wdc_channel; 68 void *sc_ih; 69 }; 70 71 int wdc_obio_match __P((struct device *, struct cfdata *, void *)); 72 void wdc_obio_attach __P((struct device *, struct device *, void *)); 73 void wdc_obio_intr __P((void *)); 74 void mac68k_bsh_wdc_set_stride __P((bus_space_tag_t t, 75 bus_space_handle_t *h, int stride)); 76 u_int16_t mac68k_bsr2_wdc_gen __P((bus_space_tag_t t, 77 bus_space_handle_t *bsh, bus_size_t offset)); 78 79 CFATTACH_DECL(wdc_obio, sizeof(struct wdc_obio_softc), 80 wdc_obio_match, wdc_obio_attach, NULL, NULL); 81 82 int 83 wdc_obio_match(parent, match, aux) 84 struct device *parent; 85 struct cfdata *match; 86 void *aux; 87 { 88 struct obio_attach_args *oa = (struct obio_attach_args *) aux; 89 struct channel_softc ch; 90 static int wdc_matched = 0; 91 int result = 0; 92 93 memset(&ch, 0, sizeof(ch)); 94 95 switch (current_mac_model->machineid) { 96 case MACH_MACPB150: 97 case MACH_MACPB190: 98 case MACH_MACPB190CS: 99 case MACH_MACP580: 100 case MACH_MACQ630: 101 ch.cmd_iot = ch.ctl_iot = oa->oa_tag; 102 103 if (bus_space_map(ch.cmd_iot, IDEBase, WDC_OBIO_REG_NPORTS, 104 0, &ch.cmd_ioh)) 105 return 0; 106 107 mac68k_bsh_wdc_set_stride(ch.cmd_iot, &ch.cmd_ioh, 4); 108 109 if (bus_space_subregion(ch.cmd_iot, ch.cmd_ioh, 110 WDC_OBIO_AUXREG_OFFSET, 111 WDC_OBIO_AUXREG_NPORTS, &ch.ctl_ioh)) 112 return 0; 113 114 result = wdcprobe(&ch); 115 116 bus_space_unmap(ch.cmd_iot, ch.cmd_ioh, WDC_OBIO_REG_NPORTS); 117 118 if (result) 119 wdc_matched = 1; 120 return (result); 121 } 122 return 0; 123 } 124 125 static bus_space_tag_t wdc_obio_isr_tag; 126 static bus_space_handle_t wdc_obio_isr_hdl; 127 static struct channel_softc *ch_sc = NULL; 128 129 void 130 wdc_obio_intr(arg) 131 void *arg; 132 { 133 unsigned char status; 134 135 status = bus_space_read_1(wdc_obio_isr_tag, 136 wdc_obio_isr_hdl, 0); 137 if (status & 0x20) { 138 wdcintr(ch_sc); 139 bus_space_write_1(wdc_obio_isr_tag, 140 wdc_obio_isr_hdl, 0, status&~0x20); 141 } 142 } 143 144 void 145 wdc_obio_attach(parent, self, aux) 146 struct device *parent; 147 struct device *self; 148 void *aux; 149 { 150 struct wdc_obio_softc *sc = (void *)self; 151 struct obio_attach_args *oa = aux; 152 struct channel_softc *chp = &sc->wdc_channel; 153 154 oa->oa_addr = IDEBase; 155 sc->wdc_channel.cmd_iot = sc->wdc_channel.ctl_iot = oa->oa_tag; 156 157 if (bus_space_map(sc->wdc_channel.cmd_iot, oa->oa_addr, 158 WDC_OBIO_REG_NPORTS, 0, &sc->wdc_channel.cmd_ioh)) { 159 printf("%s: couldn't map registers\n", 160 sc->sc_wdcdev.sc_dev.dv_xname); 161 return; 162 } 163 164 mac68k_bsh_wdc_set_stride(sc->wdc_channel.cmd_iot, 165 &sc->wdc_channel.cmd_ioh, 4); 166 167 if (bus_space_subregion(sc->wdc_channel.cmd_iot, 168 sc->wdc_channel.cmd_ioh, WDC_OBIO_AUXREG_OFFSET, 169 WDC_OBIO_AUXREG_NPORTS, 170 &sc->wdc_channel.ctl_ioh)) 171 return; 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 printf("%s: couldn't map intr status register\n", 179 sc->sc_wdcdev.sc_dev.dv_xname); 180 return; 181 } 182 183 switch (current_mac_model->machineid) { 184 case MACH_MACP580: 185 case MACH_MACQ630: 186 /* 187 * Quadra/Performa IDE generates pseudo Nubus intr at slot F 188 */ 189 printf(" (Quadra/Performa series IDE interface)"); 190 191 add_nubus_intr(0xf, (void (*)(void*))wdc_obio_intr, (void *)sc); 192 193 break; 194 case MACH_MACPB150: 195 case MACH_MACPB190: 196 case MACH_MACPB190CS: 197 /* 198 * PowerBook IDE generates pseudo NuBus intr at slot C 199 */ 200 printf(" (PowerBook series IDE interface)"); 201 202 add_nubus_intr(0xc, (void (*)(void*))wdc_obio_intr, (void *)sc); 203 204 break; 205 } 206 207 ch_sc = chp; 208 if (sc->sc_wdcdev.sc_dev.dv_cfdata->cf_flags & WDC_CAPABILITY_NOIRQ) 209 sc->sc_wdcdev.cap |= WDC_CAPABILITY_NOIRQ; 210 sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16; 211 sc->sc_wdcdev.PIO_cap = 0; 212 sc->wdc_chanptr = chp; 213 sc->sc_wdcdev.channels = &sc->wdc_chanptr; 214 sc->sc_wdcdev.nchannels = 1; 215 chp->channel = 0; 216 chp->wdc = &sc->sc_wdcdev; 217 chp->ch_queue = malloc(sizeof(struct channel_queue), M_DEVBUF, M_NOWAIT); 218 219 if (chp->ch_queue == NULL) { 220 printf("%s: can't allocate memory for command queue", 221 sc->sc_wdcdev.sc_dev.dv_xname); 222 return; 223 } 224 225 printf("\n"); 226 227 wdcattach(chp); 228 } 229 230 u_int16_t 231 mac68k_bsr2_wdc_gen(bus_space_tag_t t, bus_space_handle_t *bsh, bus_size_t offset) 232 { 233 return (*(volatile u_int16_t *) (bsh->base + offset * bsh->stride)); 234 } 235 236 void 237 mac68k_bsh_wdc_set_stride(bus_space_tag_t t, bus_space_handle_t *h, int stride) 238 { 239 h->stride = stride; 240 h->bsr1 = mac68k_bsr1_gen; 241 h->bsr2 = mac68k_bsr2_wdc_gen; 242 h->bsr4 = mac68k_bsr4_gen; 243 h->bsrs2 = mac68k_bsrs2_gen; 244 h->bsrs4 = mac68k_bsrs4_gen; 245 h->bsrm1 = mac68k_bsrm1_gen; 246 h->bsrm2 = mac68k_bsrm2_swap; 247 h->bsrm4 = mac68k_bsrm4_swap; 248 h->bsrms2 = mac68k_bsrm2; 249 h->bsrms4 = mac68k_bsrm4; 250 h->bsrr1 = mac68k_bsrr1_gen; 251 h->bsrr2 = mac68k_bsrr2_gen; 252 h->bsrr4 = mac68k_bsrr4_gen; 253 h->bsrrs2 = mac68k_bsrrs2_gen; 254 h->bsrrs4 = mac68k_bsrrs4_gen; 255 h->bsw1 = mac68k_bsw1_gen; 256 h->bsw2 = mac68k_bsw2_gen; 257 h->bsw4 = mac68k_bsw4_gen; 258 h->bsws2 = mac68k_bsws2_gen; 259 h->bsws4 = mac68k_bsws4_gen; 260 h->bswm2 = mac68k_bswm2_swap; 261 h->bswm4 = mac68k_bswm4_swap; 262 h->bswms2 = mac68k_bswm2; 263 h->bswms4 = mac68k_bswm4; 264 h->bswr1 = mac68k_bswr1_gen; 265 h->bswr2 = mac68k_bswr2_gen; 266 h->bswr4 = mac68k_bswr4_gen; 267 h->bswrs2 = mac68k_bswrs2_gen; 268 h->bswrs4 = mac68k_bswrs4_gen; 269 h->bssm1 = mac68k_bssm1_gen; 270 h->bssm2 = mac68k_bssm2_gen; 271 h->bssm4 = mac68k_bssm4_gen; 272 h->bssr1 = mac68k_bssr1_gen; 273 h->bssr2 = mac68k_bssr2_gen; 274 h->bssr4 = mac68k_bssr4_gen; 275 } 276