1/* $NetBSD: wdc_obio.c,v 1.32 2022/08/20 20:02:22 tsutsui 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 1.32 2022/08/20 20:02:22 tsutsui 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/kernel.h> 42#include <sys/kmem.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 61static u_long IDEBase = 0x50f1a000; 62 63/* 64 * XXX This code currently doesn't even try to allow 32-bit data port use. 65 */ 66 67struct 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 75int wdc_obio_match(device_t, cfdata_t, void *); 76void wdc_obio_attach(device_t, device_t, void *); 77void wdc_obio_intr(void *); 78 79CFATTACH_DECL_NEW(wdc_obio, sizeof(struct wdc_obio_softc), 80 wdc_obio_match, wdc_obio_attach, NULL, NULL); 81 82static bus_space_tag_t wdc_obio_isr_tag; 83static bus_space_handle_t wdc_obio_isr_hdl; 84static struct ata_channel *ch_sc; 85 86int 87wdc_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 wdr = kmem_alloc(sizeof(*wdr), KM_SLEEP); 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 wdr->cmd_iot = wdr->ctl_iot = oa->oa_tag; 102 103 if (bus_space_map(wdr->cmd_iot, IDEBase, WDC_OBIO_REG_NPORTS, 104 0, &wdr->cmd_baseioh)) 105 goto out; 106 107 mac68k_bus_space_handle_swapped(wdr->cmd_iot, 108 &wdr->cmd_baseioh); 109 110 for (i = 0; i < WDC_NREG; i++) { 111 if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, 112 i * 4, 4, &wdr->cmd_iohs[i]) != 0) 113 goto unmap; 114 } 115 wdc_init_shadow_regs(wdr); 116 117 if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, 118 WDC_OBIO_AUXREG_OFFSET, WDC_OBIO_AUXREG_NPORTS, 119 &wdr->ctl_ioh)) 120 goto unmap; 121 122 result = wdcprobe(wdr); 123 124 unmap: 125 bus_space_unmap(wdr->cmd_iot, wdr->cmd_baseioh, 126 WDC_OBIO_REG_NPORTS); 127 } 128 out: 129 kmem_free(wdr, sizeof(*wdr)); 130 return result; 131} 132 133void 134wdc_obio_attach(device_t parent, device_t self, void *aux) 135{ 136 struct wdc_obio_softc *sc = device_private(self); 137 struct wdc_regs *wdr; 138 struct obio_attach_args *oa = aux; 139 struct ata_channel *chp = &sc->sc_channel; 140 int i; 141 142 sc->sc_wdcdev.sc_atac.atac_dev = self; 143 sc->sc_wdcdev.regs = wdr = &sc->sc_wdc_regs; 144 145 oa->oa_addr = IDEBase; 146 wdr->cmd_iot = wdr->ctl_iot = oa->oa_tag; 147 148 if (bus_space_map(wdr->cmd_iot, oa->oa_addr, WDC_OBIO_REG_NPORTS, 0, 149 &wdr->cmd_baseioh)) { 150 aprint_error(": couldn't map registers\n"); 151 return; 152 } 153 154 mac68k_bus_space_handle_swapped(wdr->cmd_iot, &wdr->cmd_baseioh); 155 156 for (i = 0; i < WDC_NREG; i++) { 157 if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, 158 i * 4, 4, &wdr->cmd_iohs[i]) != 0) { 159 aprint_error( 160 ": unable to subregion control register\n"); 161 goto err; 162 } 163 } 164 165 if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, 166 WDC_OBIO_AUXREG_OFFSET, WDC_OBIO_AUXREG_NPORTS, &wdr->ctl_ioh)) { 167 aprint_error(": unable to subregion aux register\n"); 168 goto err; 169 } 170 171 wdc_obio_isr_tag = oa->oa_tag; 172 173 if (bus_space_map(wdc_obio_isr_tag, oa->oa_addr + WDC_OBIO_ISR_OFFSET, 174 WDC_OBIO_ISR_NPORTS, 0, &wdc_obio_isr_hdl)) { 175 aprint_error(": couldn't map intr status register\n"); 176 goto err; 177 } 178 179 switch (current_mac_model->machineid) { 180 case MACH_MACP580: 181 case MACH_MACQ630: 182 /* 183 * Quadra/Performa IDE generates pseudo Nubus intr at slot F 184 */ 185 aprint_normal(" (Quadra/Performa series IDE interface)"); 186 187 add_nubus_intr(0xf, wdc_obio_intr, sc); 188 189 break; 190 case MACH_MACPB150: 191 case MACH_MACPB190: 192 case MACH_MACPB190CS: 193 /* 194 * PowerBook IDE generates pseudo NuBus intr at slot C 195 */ 196 aprint_normal(" (PowerBook series IDE interface)"); 197 198 add_nubus_intr(0xc, wdc_obio_intr, sc); 199 200 break; 201 } 202 203 ch_sc = chp; 204 if ((device_cfdata(self)->cf_flags & ATAC_CAP_NOIRQ) != 0) 205 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_NOIRQ; 206 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16; 207 sc->sc_wdcdev.sc_atac.atac_pio_cap = 0; 208 sc->sc_chanlist[0] = chp; 209 sc->sc_wdcdev.sc_atac.atac_channels = sc->sc_chanlist; 210 sc->sc_wdcdev.sc_atac.atac_nchannels = 1; 211 sc->sc_wdcdev.wdc_maxdrives = 2; 212 chp->ch_channel = 0; 213 chp->ch_atac = &sc->sc_wdcdev.sc_atac; 214 215 wdc_init_shadow_regs(wdr); 216 217 aprint_normal("\n"); 218 219 wdcattach(chp); 220 return; 221 222 err: 223 bus_space_unmap(wdr->cmd_iot, wdr->cmd_baseioh, WDC_OBIO_REG_NPORTS); 224} 225 226void 227wdc_obio_intr(void *arg) 228{ 229 uint8_t status; 230 231 status = bus_space_read_1(wdc_obio_isr_tag, wdc_obio_isr_hdl, 0); 232 if ((status & 0x20) != 0) { 233 wdcintr(ch_sc); 234 bus_space_write_1(wdc_obio_isr_tag, wdc_obio_isr_hdl, 0, 235 status & ~0x20); 236 } 237} 238