wdc_xsurf.c revision 1.2.2.2
1 1.2.2.2 yamt /* $NetBSD: wdc_xsurf.c,v 1.2.2.2 2013/01/16 05:32:42 yamt Exp $ */ 2 1.2.2.2 yamt 3 1.2.2.2 yamt /*- 4 1.2.2.2 yamt * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 1.2.2.2 yamt * All rights reserved. 6 1.2.2.2 yamt * 7 1.2.2.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 yamt * by Radoslaw Kujawa. 9 1.2.2.2 yamt * 10 1.2.2.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 yamt * modification, are permitted provided that the following conditions 12 1.2.2.2 yamt * are met: 13 1.2.2.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 yamt * documentation and/or other materials provided with the distribution. 18 1.2.2.2 yamt * 19 1.2.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 30 1.2.2.2 yamt */ 31 1.2.2.2 yamt 32 1.2.2.2 yamt /* Driver for IDE controller present on X-Surf. */ 33 1.2.2.2 yamt 34 1.2.2.2 yamt #include <sys/cdefs.h> 35 1.2.2.2 yamt 36 1.2.2.2 yamt #include <sys/systm.h> 37 1.2.2.2 yamt #include <sys/types.h> 38 1.2.2.2 yamt #include <sys/device.h> 39 1.2.2.2 yamt #include <sys/bus.h> 40 1.2.2.2 yamt #include <sys/conf.h> 41 1.2.2.2 yamt #include <sys/kmem.h> 42 1.2.2.2 yamt 43 1.2.2.2 yamt #include <machine/cpu.h> 44 1.2.2.2 yamt 45 1.2.2.2 yamt #include <amiga/amiga/device.h> 46 1.2.2.2 yamt 47 1.2.2.2 yamt #include <dev/ata/atavar.h> 48 1.2.2.2 yamt #include <dev/ic/wdcvar.h> 49 1.2.2.2 yamt 50 1.2.2.2 yamt #include <amiga/dev/zbusvar.h> 51 1.2.2.2 yamt #include <amiga/dev/xsurfvar.h> 52 1.2.2.2 yamt 53 1.2.2.2 yamt #define WDC_XSURF_CHANNELS 2 54 1.2.2.2 yamt #define WDC_XSURF_CHANSIZE 0x30 55 1.2.2.2 yamt #define WDC_XSURF_CHANOFF 0x2000 56 1.2.2.2 yamt 57 1.2.2.2 yamt #define WDC_XSURF_ISR_OFF 0x7E 58 1.2.2.2 yamt #define WDC_XSURF_ISR_HIGH 0x80 59 1.2.2.2 yamt 60 1.2.2.2 yamt #define WDC_XSURF_OFF_DATA 0x0 61 1.2.2.2 yamt #define WDC_XSURF_OFF_ERROR 0x6 62 1.2.2.2 yamt #define WDC_XSURF_OFF_SECCNT 0xA 63 1.2.2.2 yamt #define WDC_XSURF_OFF_SECTOR 0xE 64 1.2.2.2 yamt #define WDC_XSURF_OFF_CYL_LO 0x12 65 1.2.2.2 yamt #define WDC_XSURF_OFF_CYL_HI 0x16 66 1.2.2.2 yamt #define WDC_XSURF_OFF_SDH 0x1A 67 1.2.2.2 yamt #define WDC_XSURF_OFF_COMMAND 0x1E 68 1.2.2.2 yamt 69 1.2.2.2 yamt struct wdc_xsurf_port { 70 1.2.2.2 yamt struct ata_channel channel; 71 1.2.2.2 yamt struct ata_queue queue; 72 1.2.2.2 yamt struct wdc_regs wdr; 73 1.2.2.2 yamt }; 74 1.2.2.2 yamt 75 1.2.2.2 yamt struct wdc_xsurf_softc { 76 1.2.2.2 yamt device_t sc_dev; 77 1.2.2.2 yamt 78 1.2.2.2 yamt struct wdc_softc sc_wdcdev; 79 1.2.2.2 yamt struct ata_channel *sc_chanarray[WDC_XSURF_CHANNELS]; 80 1.2.2.2 yamt struct wdc_xsurf_port sc_ports[WDC_XSURF_CHANNELS]; 81 1.2.2.2 yamt 82 1.2.2.2 yamt struct bus_space_tag sc_bst; 83 1.2.2.2 yamt bus_space_tag_t sc_cmdt; 84 1.2.2.2 yamt bus_space_handle_t sc_isrh; 85 1.2.2.2 yamt 86 1.2.2.2 yamt struct isr sc_isr; 87 1.2.2.2 yamt }; 88 1.2.2.2 yamt 89 1.2.2.2 yamt static int wdc_xsurf_match(device_t, cfdata_t, void *); 90 1.2.2.2 yamt static void wdc_xsurf_attach(device_t, device_t, void *); 91 1.2.2.2 yamt void wdc_xsurf_attach_channel(struct wdc_xsurf_softc *, int); 92 1.2.2.2 yamt void wdc_xsurf_map_channel(struct wdc_xsurf_softc *, int); 93 1.2.2.2 yamt int wdc_xsurf_intr(void *arg); 94 1.2.2.2 yamt 95 1.2.2.2 yamt CFATTACH_DECL_NEW(wdc_xsurf, sizeof(struct wdc_softc), 96 1.2.2.2 yamt wdc_xsurf_match, wdc_xsurf_attach, NULL, NULL); 97 1.2.2.2 yamt 98 1.2.2.2 yamt static const unsigned int wdc_xsurf_wdr_offsets[] = { 99 1.2.2.2 yamt WDC_XSURF_OFF_DATA, WDC_XSURF_OFF_ERROR, WDC_XSURF_OFF_SECCNT, 100 1.2.2.2 yamt WDC_XSURF_OFF_SECTOR, WDC_XSURF_OFF_CYL_LO, WDC_XSURF_OFF_CYL_HI, 101 1.2.2.2 yamt WDC_XSURF_OFF_SDH, WDC_XSURF_OFF_COMMAND 102 1.2.2.2 yamt }; 103 1.2.2.2 yamt 104 1.2.2.2 yamt static int 105 1.2.2.2 yamt wdc_xsurf_match(device_t parent, cfdata_t cf, void *aux) 106 1.2.2.2 yamt { 107 1.2.2.2 yamt struct xsurfbus_attach_args *xsb_aa = aux; 108 1.2.2.2 yamt 109 1.2.2.2 yamt if (strcmp(xsb_aa->xaa_name, "wdc_xsurf") != 0) 110 1.2.2.2 yamt return 0; 111 1.2.2.2 yamt 112 1.2.2.2 yamt return 1; 113 1.2.2.2 yamt } 114 1.2.2.2 yamt 115 1.2.2.2 yamt static void 116 1.2.2.2 yamt wdc_xsurf_attach(device_t parent, device_t self, void *aux) 117 1.2.2.2 yamt { 118 1.2.2.2 yamt struct wdc_xsurf_softc *sc; 119 1.2.2.2 yamt struct xsurfbus_attach_args *xsb_aa; 120 1.2.2.2 yamt int i; 121 1.2.2.2 yamt 122 1.2.2.2 yamt aprint_normal("\n"); 123 1.2.2.2 yamt aprint_naive("\n"); 124 1.2.2.2 yamt xsb_aa = aux; 125 1.2.2.2 yamt sc = device_private(self); 126 1.2.2.2 yamt sc->sc_dev = self; 127 1.2.2.2 yamt 128 1.2.2.2 yamt sc->sc_bst.base = xsb_aa->xaa_base; 129 1.2.2.2 yamt sc->sc_bst.absm = &amiga_bus_stride_1swap; 130 1.2.2.2 yamt sc->sc_cmdt = &sc->sc_bst; 131 1.2.2.2 yamt 132 1.2.2.2 yamt sc->sc_wdcdev.sc_atac.atac_pio_cap = 0; 133 1.2.2.2 yamt sc->sc_wdcdev.sc_atac.atac_nchannels = WDC_XSURF_CHANNELS; 134 1.2.2.2 yamt sc->sc_wdcdev.sc_atac.atac_dev = self; 135 1.2.2.2 yamt sc->sc_wdcdev.sc_atac.atac_channels = sc->sc_chanarray; 136 1.2.2.2 yamt sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA16; 137 1.2.2.2 yamt sc->sc_wdcdev.wdc_maxdrives = 2; 138 1.2.2.2 yamt /* this controller has no aux control registers */ 139 1.2.2.2 yamt sc->sc_wdcdev.cap = WDC_CAPABILITY_NO_AUXCTL; 140 1.2.2.2 yamt 141 1.2.2.2 yamt /* attach the channels */ 142 1.2.2.2 yamt wdc_allocate_regs(&sc->sc_wdcdev); 143 1.2.2.2 yamt for (i = 0; i < WDC_XSURF_CHANNELS; i++) { 144 1.2.2.2 yamt wdc_xsurf_attach_channel(sc, i); 145 1.2.2.2 yamt } 146 1.2.2.2 yamt 147 1.2.2.2 yamt /* map interrupt status register */ 148 1.2.2.2 yamt bus_space_map(sc->sc_cmdt, WDC_XSURF_ISR_OFF, 149 1.2.2.2 yamt 1, 0, &sc->sc_isrh); 150 1.2.2.2 yamt 151 1.2.2.2 yamt /* attach interrupt */ 152 1.2.2.2 yamt sc->sc_isr.isr_intr = wdc_xsurf_intr; 153 1.2.2.2 yamt sc->sc_isr.isr_arg = sc; 154 1.2.2.2 yamt sc->sc_isr.isr_ipl = 2; 155 1.2.2.2 yamt add_isr(&sc->sc_isr); 156 1.2.2.2 yamt } 157 1.2.2.2 yamt 158 1.2.2.2 yamt void 159 1.2.2.2 yamt wdc_xsurf_attach_channel(struct wdc_xsurf_softc *sc, int chnum) 160 1.2.2.2 yamt { 161 1.2.2.2 yamt sc->sc_chanarray[chnum] = &sc->sc_ports[chnum].channel; 162 1.2.2.2 yamt memset(&sc->sc_ports[chnum],0,sizeof(struct wdc_xsurf_port)); 163 1.2.2.2 yamt sc->sc_ports[chnum].channel.ch_channel = chnum; 164 1.2.2.2 yamt sc->sc_ports[chnum].channel.ch_atac = &sc->sc_wdcdev.sc_atac; 165 1.2.2.2 yamt sc->sc_ports[chnum].channel.ch_queue = &sc->sc_ports[chnum].queue; 166 1.2.2.2 yamt 167 1.2.2.2 yamt wdc_xsurf_map_channel(sc, chnum); 168 1.2.2.2 yamt 169 1.2.2.2 yamt wdc_init_shadow_regs(&sc->sc_ports[chnum].channel); 170 1.2.2.2 yamt wdcattach(&sc->sc_ports[chnum].channel); 171 1.2.2.2 yamt 172 1.2.2.2 yamt #ifdef WDC_XSURF_DEBUG 173 1.2.2.2 yamt aprint_normal_dev(sc->sc_dev, "done init for channel %d\n", chnum); 174 1.2.2.2 yamt #endif /* WDC_XSURF_DEBUG */ 175 1.2.2.2 yamt } 176 1.2.2.2 yamt 177 1.2.2.2 yamt void 178 1.2.2.2 yamt wdc_xsurf_map_channel(struct wdc_xsurf_softc *sc, int chnum) 179 1.2.2.2 yamt { 180 1.2.2.2 yamt struct wdc_regs *wdr; 181 1.2.2.2 yamt int i; 182 1.2.2.2 yamt 183 1.2.2.2 yamt wdr = CHAN_TO_WDC_REGS(&sc->sc_ports[chnum].channel); 184 1.2.2.2 yamt 185 1.2.2.2 yamt /* map the registers */ 186 1.2.2.2 yamt wdr->cmd_iot = sc->sc_cmdt; 187 1.2.2.2 yamt bus_space_map(sc->sc_cmdt, chnum * WDC_XSURF_CHANOFF, 188 1.2.2.2 yamt WDC_XSURF_CHANSIZE, 0, &wdr->cmd_baseioh); 189 1.2.2.2 yamt 190 1.2.2.2 yamt for (i = 0; i < WDC_NREG; i++) 191 1.2.2.2 yamt bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, 192 1.2.2.2 yamt wdc_xsurf_wdr_offsets[i], i == 0 ? 2 : 1, 193 1.2.2.2 yamt &wdr->cmd_iohs[i]); 194 1.2.2.2 yamt } 195 1.2.2.2 yamt 196 1.2.2.2 yamt int 197 1.2.2.2 yamt wdc_xsurf_intr(void *arg) 198 1.2.2.2 yamt { 199 1.2.2.2 yamt struct wdc_xsurf_softc *sc; 200 1.2.2.2 yamt uint8_t intreq; 201 1.2.2.2 yamt int r1, r2; 202 1.2.2.2 yamt 203 1.2.2.2 yamt sc = (struct wdc_xsurf_softc *)arg; 204 1.2.2.2 yamt r1 = r2 = 0; 205 1.2.2.2 yamt 206 1.2.2.2 yamt intreq = bus_space_read_1(sc->sc_cmdt, sc->sc_isrh, 0); 207 1.2.2.2 yamt bus_space_write_1(sc->sc_cmdt, sc->sc_isrh, 0, 0); /* pull A11 down */ 208 1.2.2.2 yamt 209 1.2.2.2 yamt /* only one register for both channels... :/ */ 210 1.2.2.2 yamt if (intreq & WDC_XSURF_ISR_HIGH) { 211 1.2.2.2 yamt r1 = wdcintr(&sc->sc_ports[0].channel); 212 1.2.2.2 yamt r2 = wdcintr(&sc->sc_ports[1].channel); 213 1.2.2.2 yamt } 214 1.2.2.2 yamt 215 1.2.2.2 yamt return r1 | r2; 216 1.2.2.2 yamt } 217
Indexes created Sat Oct 25 16:10:12 GMT 2025