ptsc.c revision 1.2.2.3
1 1.2.2.3 jdolecek /* $NetBSD: ptsc.c,v 1.2.2.3 2002/09/06 08:31:13 jdolecek Exp $ */ 2 1.2.2.2 thorpej 3 1.2.2.2 thorpej /* 4 1.2.2.2 thorpej * Copyright (c) 1995 Scott Stevens 5 1.2.2.2 thorpej * Copyright (c) 1995 Daniel Widenfalk 6 1.2.2.2 thorpej * Copyright (c) 1994 Christian E. Hopps 7 1.2.2.2 thorpej * Copyright (c) 1982, 1990 The Regents of the University of California. 8 1.2.2.2 thorpej * All rights reserved. 9 1.2.2.2 thorpej * 10 1.2.2.2 thorpej * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 thorpej * modification, are permitted provided that the following conditions 12 1.2.2.2 thorpej * are met: 13 1.2.2.2 thorpej * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 thorpej * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 thorpej * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 thorpej * documentation and/or other materials provided with the distribution. 18 1.2.2.2 thorpej * 3. All advertising materials mentioning features or use of this software 19 1.2.2.2 thorpej * must display the following acknowledgement: 20 1.2.2.2 thorpej * This product includes software developed by the University of 21 1.2.2.2 thorpej * California, Berkeley and its contributors. 22 1.2.2.2 thorpej * 4. Neither the name of the University nor the names of its contributors 23 1.2.2.2 thorpej * may be used to endorse or promote products derived from this software 24 1.2.2.2 thorpej * without specific prior written permission. 25 1.2.2.2 thorpej * 26 1.2.2.2 thorpej * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 1.2.2.2 thorpej * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 1.2.2.2 thorpej * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 1.2.2.2 thorpej * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 1.2.2.2 thorpej * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 1.2.2.2 thorpej * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 1.2.2.2 thorpej * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 1.2.2.2 thorpej * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 1.2.2.2 thorpej * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 1.2.2.2 thorpej * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 1.2.2.2 thorpej * SUCH DAMAGE. 37 1.2.2.2 thorpej * 38 1.2.2.2 thorpej * @(#)ptsc.c 39 1.2.2.2 thorpej */ 40 1.2.2.2 thorpej 41 1.2.2.2 thorpej /* 42 1.2.2.2 thorpej * Power-tec SCSI-2 driver uses SFAS216 generic driver 43 1.2.2.2 thorpej * 44 1.2.2.2 thorpej * Thanks to Alsystems for loaning a development card and providing 45 1.2.2.2 thorpej * programming information. 46 1.2.2.2 thorpej */ 47 1.2.2.2 thorpej 48 1.2.2.2 thorpej #include <sys/param.h> 49 1.2.2.2 thorpej #include <sys/systm.h> 50 1.2.2.2 thorpej #include <sys/kernel.h> 51 1.2.2.2 thorpej #include <sys/device.h> 52 1.2.2.2 thorpej #include <dev/scsipi/scsi_all.h> 53 1.2.2.2 thorpej #include <dev/scsipi/scsipi_all.h> 54 1.2.2.2 thorpej #include <dev/scsipi/scsiconf.h> 55 1.2.2.2 thorpej #include <uvm/uvm_extern.h> 56 1.2.2.2 thorpej #include <machine/pmap.h> 57 1.2.2.2 thorpej #include <machine/io.h> 58 1.2.2.2 thorpej #include <machine/intr.h> 59 1.2.2.2 thorpej #include <machine/bootconfig.h> 60 1.2.2.2 thorpej #include <acorn32/podulebus/podulebus.h> 61 1.2.2.2 thorpej #include <acorn32/podulebus/sfasreg.h> 62 1.2.2.2 thorpej #include <acorn32/podulebus/sfasvar.h> 63 1.2.2.2 thorpej #include <acorn32/podulebus/ptscreg.h> 64 1.2.2.2 thorpej #include <acorn32/podulebus/ptscvar.h> 65 1.2.2.2 thorpej #include <dev/podulebus/podules.h> 66 1.2.2.2 thorpej #include <dev/podulebus/powerromreg.h> 67 1.2.2.2 thorpej 68 1.2.2.2 thorpej void ptscattach __P((struct device *, struct device *, void *)); 69 1.2.2.2 thorpej int ptscmatch __P((struct device *, struct cfdata *, void *)); 70 1.2.2.2 thorpej 71 1.2.2.2 thorpej struct cfattach ptsc_ca = { 72 1.2.2.2 thorpej sizeof(struct ptsc_softc), ptscmatch, ptscattach 73 1.2.2.2 thorpej }; 74 1.2.2.2 thorpej 75 1.2.2.2 thorpej int ptsc_intr __P((void *arg)); 76 1.2.2.2 thorpej int ptsc_setup_dma __P((struct sfas_softc *sc, void *ptr, int len, 77 1.2.2.2 thorpej int mode)); 78 1.2.2.2 thorpej int ptsc_build_dma_chain __P((struct sfas_softc *sc, 79 1.2.2.2 thorpej struct sfas_dma_chain *chain, void *p, int l)); 80 1.2.2.2 thorpej int ptsc_need_bump __P((struct sfas_softc *sc, void *ptr, int len)); 81 1.2.2.2 thorpej void ptsc_led __P((struct sfas_softc *sc, int mode)); 82 1.2.2.2 thorpej 83 1.2.2.2 thorpej /* 84 1.2.2.2 thorpej * if we are a Power-tec SCSI-2 card 85 1.2.2.2 thorpej */ 86 1.2.2.2 thorpej int 87 1.2.2.2 thorpej ptscmatch(pdp, cf, auxp) 88 1.2.2.2 thorpej struct device *pdp; 89 1.2.2.2 thorpej struct cfdata *cf; 90 1.2.2.2 thorpej void *auxp; 91 1.2.2.2 thorpej { 92 1.2.2.2 thorpej struct podule_attach_args *pa = (struct podule_attach_args *)auxp; 93 1.2.2.2 thorpej 94 1.2.2.2 thorpej /* Look for the card */ 95 1.2.2.2 thorpej 96 1.2.2.2 thorpej /* 97 1.2.2.2 thorpej * All Power-tec cards effectively have PowerROMS. Note, 98 1.2.2.2 thorpej * though, that here, if we fail to initialise the loader, we 99 1.2.2.2 thorpej * assume this _is_ the right kind of card. 100 1.2.2.2 thorpej */ 101 1.2.2.2 thorpej if (pa->pa_product == PODULE_ALSYSTEMS_SCSI && 102 1.2.2.2 thorpej (podulebus_initloader(pa) != 0 || 103 1.2.2.2 thorpej podloader_callloader(pa, 0, 0) == PRID_POWERTEC)) 104 1.2.2.2 thorpej return 1; 105 1.2.2.2 thorpej 106 1.2.2.2 thorpej return 0; 107 1.2.2.2 thorpej } 108 1.2.2.2 thorpej 109 1.2.2.2 thorpej void 110 1.2.2.2 thorpej ptscattach(pdp, dp, auxp) 111 1.2.2.2 thorpej struct device *pdp; 112 1.2.2.2 thorpej struct device *dp; 113 1.2.2.2 thorpej void *auxp; 114 1.2.2.2 thorpej { 115 1.2.2.2 thorpej struct ptsc_softc *sc = (struct ptsc_softc *)dp; 116 1.2.2.2 thorpej struct podule_attach_args *pa; 117 1.2.2.2 thorpej ptsc_regmap_p rp = &sc->sc_regmap; 118 1.2.2.2 thorpej vu_char *fas; 119 1.2.2.2 thorpej 120 1.2.2.2 thorpej pa = (struct podule_attach_args *)auxp; 121 1.2.2.2 thorpej 122 1.2.2.2 thorpej if (pa->pa_podule_number == -1) 123 1.2.2.2 thorpej panic("Podule has disappeared !"); 124 1.2.2.2 thorpej 125 1.2.2.2 thorpej sc->sc_specific.sc_podule_number = pa->pa_podule_number; 126 1.2.2.2 thorpej sc->sc_specific.sc_podule = pa->pa_podule; 127 1.2.2.2 thorpej sc->sc_specific.sc_iobase = 128 1.2.2.2 thorpej (vu_char *)sc->sc_specific.sc_podule->fast_base; 129 1.2.2.2 thorpej 130 1.2.2.2 thorpej rp->chipreset = &sc->sc_specific.sc_iobase[PTSC_CONTROL_CHIPRESET]; 131 1.2.2.2 thorpej rp->inten = &sc->sc_specific.sc_iobase[PTSC_CONTROL_INTEN]; 132 1.2.2.2 thorpej rp->status = &sc->sc_specific.sc_iobase[PTSC_STATUS]; 133 1.2.2.2 thorpej rp->term = &sc->sc_specific.sc_iobase[PTSC_CONTROL_TERM]; 134 1.2.2.2 thorpej rp->led = &sc->sc_specific.sc_iobase[PTSC_CONTROL_LED]; 135 1.2.2.2 thorpej fas = &sc->sc_specific.sc_iobase[PTSC_FASOFFSET_BASE]; 136 1.2.2.2 thorpej 137 1.2.2.2 thorpej rp->FAS216.sfas_tc_low = &fas[PTSC_FASOFFSET_TCL]; 138 1.2.2.2 thorpej rp->FAS216.sfas_tc_mid = &fas[PTSC_FASOFFSET_TCM]; 139 1.2.2.2 thorpej rp->FAS216.sfas_fifo = &fas[PTSC_FASOFFSET_FIFO]; 140 1.2.2.2 thorpej rp->FAS216.sfas_command = &fas[PTSC_FASOFFSET_COMMAND]; 141 1.2.2.2 thorpej rp->FAS216.sfas_dest_id = &fas[PTSC_FASOFFSET_DESTID]; 142 1.2.2.2 thorpej rp->FAS216.sfas_timeout = &fas[PTSC_FASOFFSET_TIMEOUT]; 143 1.2.2.2 thorpej rp->FAS216.sfas_syncper = &fas[PTSC_FASOFFSET_PERIOD]; 144 1.2.2.2 thorpej rp->FAS216.sfas_syncoff = &fas[PTSC_FASOFFSET_OFFSET]; 145 1.2.2.2 thorpej rp->FAS216.sfas_config1 = &fas[PTSC_FASOFFSET_CONFIG1]; 146 1.2.2.2 thorpej rp->FAS216.sfas_clkconv = &fas[PTSC_FASOFFSET_CLOCKCONV]; 147 1.2.2.2 thorpej rp->FAS216.sfas_test = &fas[PTSC_FASOFFSET_TEST]; 148 1.2.2.2 thorpej rp->FAS216.sfas_config2 = &fas[PTSC_FASOFFSET_CONFIG2]; 149 1.2.2.2 thorpej rp->FAS216.sfas_config3 = &fas[PTSC_FASOFFSET_CONFIG3]; 150 1.2.2.2 thorpej rp->FAS216.sfas_tc_high = &fas[PTSC_FASOFFSET_TCH]; 151 1.2.2.2 thorpej rp->FAS216.sfas_fifo_bot = &fas[PTSC_FASOFFSET_FIFOBOTTOM]; 152 1.2.2.2 thorpej 153 1.2.2.2 thorpej sc->sc_softc.sc_fas = (sfas_regmap_p)rp; 154 1.2.2.2 thorpej sc->sc_softc.sc_spec = &sc->sc_specific; 155 1.2.2.2 thorpej 156 1.2.2.2 thorpej sc->sc_softc.sc_led = ptsc_led; 157 1.2.2.2 thorpej 158 1.2.2.2 thorpej sc->sc_softc.sc_setup_dma = ptsc_setup_dma; 159 1.2.2.2 thorpej sc->sc_softc.sc_build_dma_chain = ptsc_build_dma_chain; 160 1.2.2.2 thorpej sc->sc_softc.sc_need_bump = ptsc_need_bump; 161 1.2.2.2 thorpej 162 1.2.2.2 thorpej sc->sc_softc.sc_clock_freq = 40; /* Power-Tec runs at 8MHz */ 163 1.2.2.2 thorpej sc->sc_softc.sc_timeout = 250; /* Set default timeout to 250ms */ 164 1.2.2.2 thorpej sc->sc_softc.sc_config_flags = SFAS_NO_DMA /*| SFAS_NF_DEBUG*/; 165 1.2.2.2 thorpej sc->sc_softc.sc_host_id = 7; /* Should check the jumpers */ 166 1.2.2.2 thorpej 167 1.2.2.2 thorpej sc->sc_softc.sc_bump_sz = NBPG; 168 1.2.2.2 thorpej sc->sc_softc.sc_bump_pa = 0x0; 169 1.2.2.2 thorpej 170 1.2.2.2 thorpej sfasinitialize((struct sfas_softc *)sc); 171 1.2.2.2 thorpej 172 1.2.2.2 thorpej sc->sc_softc.sc_adapter.adapt_dev = &sc->sc_softc.sc_dev; 173 1.2.2.2 thorpej sc->sc_softc.sc_adapter.adapt_nchannels = 1; 174 1.2.2.2 thorpej sc->sc_softc.sc_adapter.adapt_openings = 7; 175 1.2.2.2 thorpej sc->sc_softc.sc_adapter.adapt_max_periph = 1; 176 1.2.2.2 thorpej sc->sc_softc.sc_adapter.adapt_ioctl = NULL; 177 1.2.2.2 thorpej sc->sc_softc.sc_adapter.adapt_minphys = sfas_minphys; 178 1.2.2.3 jdolecek sc->sc_softc.sc_adapter.adapt_request = sfas_scsi_request; 179 1.2.2.2 thorpej 180 1.2.2.2 thorpej sc->sc_softc.sc_channel.chan_adapter = &sc->sc_softc.sc_adapter; 181 1.2.2.2 thorpej sc->sc_softc.sc_channel.chan_bustype = &scsi_bustype; 182 1.2.2.2 thorpej sc->sc_softc.sc_channel.chan_channel = 0; 183 1.2.2.2 thorpej sc->sc_softc.sc_channel.chan_ntargets = 8; 184 1.2.2.2 thorpej sc->sc_softc.sc_channel.chan_nluns = 8; 185 1.2.2.2 thorpej sc->sc_softc.sc_channel.chan_id = sc->sc_softc.sc_host_id; 186 1.2.2.2 thorpej 187 1.2.2.2 thorpej /* Provide an override for the host id */ 188 1.2.2.2 thorpej (void)get_bootconf_option(boot_args, "ptsc.hostid", 189 1.2.2.2 thorpej BOOTOPT_TYPE_INT, &sc->sc_softc.sc_channel.chan_id); 190 1.2.2.2 thorpej 191 1.2.2.2 thorpej printf(": host=%d", sc->sc_softc.sc_channel.chan_id); 192 1.2.2.2 thorpej 193 1.2.2.2 thorpej /* initialise the card */ 194 1.2.2.2 thorpej /* *rp->term = 0;*/ 195 1.2.2.2 thorpej *rp->inten = (PTSC_POLL?0:1); 196 1.2.2.2 thorpej *rp->led = 0; 197 1.2.2.2 thorpej 198 1.2.2.2 thorpej #if PTSC_POLL == 0 199 1.2.2.2 thorpej evcnt_attach_dynamic(&sc->sc_softc.sc_intrcnt, EVCNT_TYPE_INTR, NULL, 200 1.2.2.2 thorpej dp->dv_xname, "intr"); 201 1.2.2.2 thorpej sc->sc_softc.sc_ih = podulebus_irq_establish(pa->pa_ih, IPL_BIO, 202 1.2.2.2 thorpej ptsc_intr, &sc->sc_softc, &sc->sc_softc.sc_intrcnt); 203 1.2.2.2 thorpej if (sc->sc_softc.sc_ih == NULL) 204 1.2.2.2 thorpej panic("%s: Cannot install IRQ handler\n", dp->dv_xname); 205 1.2.2.2 thorpej #else 206 1.2.2.2 thorpej printf(" polling"); 207 1.2.2.3 jdolecek sc->sc_softc.sc_adapter.adapt_flags = SCSIPI_ADAPT_POLL_ONLY; 208 1.2.2.2 thorpej #endif 209 1.2.2.2 thorpej 210 1.2.2.2 thorpej printf("\n"); 211 1.2.2.2 thorpej 212 1.2.2.2 thorpej /* attach all scsi units on us */ 213 1.2.2.2 thorpej config_found(dp, &sc->sc_softc.sc_channel, scsiprint); 214 1.2.2.2 thorpej } 215 1.2.2.2 thorpej 216 1.2.2.2 thorpej 217 1.2.2.2 thorpej int 218 1.2.2.2 thorpej ptsc_intr(arg) 219 1.2.2.2 thorpej void *arg; 220 1.2.2.2 thorpej { 221 1.2.2.2 thorpej struct sfas_softc *dev = arg; 222 1.2.2.2 thorpej ptsc_regmap_p rp; 223 1.2.2.2 thorpej int quickints; 224 1.2.2.2 thorpej 225 1.2.2.2 thorpej rp = (ptsc_regmap_p)dev->sc_fas; 226 1.2.2.2 thorpej 227 1.2.2.2 thorpej if (*rp->FAS216.sfas_status & SFAS_STAT_INTERRUPT_PENDING) { 228 1.2.2.2 thorpej quickints = 16; 229 1.2.2.2 thorpej do { 230 1.2.2.2 thorpej dev->sc_status = *rp->FAS216.sfas_status; 231 1.2.2.2 thorpej dev->sc_interrupt = *rp->FAS216.sfas_interrupt; 232 1.2.2.2 thorpej 233 1.2.2.2 thorpej if (dev->sc_interrupt & SFAS_INT_RESELECTED) { 234 1.2.2.2 thorpej dev->sc_resel[0] = *rp->FAS216.sfas_fifo; 235 1.2.2.2 thorpej dev->sc_resel[1] = *rp->FAS216.sfas_fifo; 236 1.2.2.2 thorpej } 237 1.2.2.2 thorpej 238 1.2.2.2 thorpej sfasintr(dev); 239 1.2.2.2 thorpej 240 1.2.2.2 thorpej } while((*rp->FAS216.sfas_status & SFAS_STAT_INTERRUPT_PENDING) 241 1.2.2.2 thorpej && --quickints); 242 1.2.2.2 thorpej } 243 1.2.2.2 thorpej 244 1.2.2.2 thorpej return(0); /* Pass interrupt on down the chain */ 245 1.2.2.2 thorpej } 246 1.2.2.2 thorpej 247 1.2.2.2 thorpej /* Load transfer address into dma register */ 248 1.2.2.2 thorpej void 249 1.2.2.2 thorpej ptsc_set_dma_adr(sc, ptr) 250 1.2.2.2 thorpej struct sfas_softc *sc; 251 1.2.2.2 thorpej void *ptr; 252 1.2.2.2 thorpej { 253 1.2.2.2 thorpej #if 0 254 1.2.2.2 thorpej ptsc_regmap_p rp; 255 1.2.2.2 thorpej unsigned int *p; 256 1.2.2.2 thorpej unsigned int d; 257 1.2.2.2 thorpej #endif 258 1.2.2.2 thorpej #if 0 259 1.2.2.2 thorpej printf("ptsc_set_dma_adr(sc = 0x%08x, ptr = 0x%08x)\n", (u_int)sc, (u_int)ptr); 260 1.2.2.2 thorpej #endif 261 1.2.2.2 thorpej return; 262 1.2.2.2 thorpej #if 0 263 1.2.2.2 thorpej rp = (ptsc_regmap_p)sc->sc_fas; 264 1.2.2.2 thorpej 265 1.2.2.2 thorpej d = (unsigned int)ptr; 266 1.2.2.2 thorpej p = (unsigned int *)((d & 0xFFFFFF) + (int)rp->dmabase); 267 1.2.2.2 thorpej 268 1.2.2.2 thorpej *rp->clear=0; 269 1.2.2.2 thorpej *p = d; 270 1.2.2.2 thorpej #endif 271 1.2.2.2 thorpej } 272 1.2.2.2 thorpej 273 1.2.2.2 thorpej /* Set DMA transfer counter */ 274 1.2.2.2 thorpej void 275 1.2.2.2 thorpej ptsc_set_dma_tc(sc, len) 276 1.2.2.2 thorpej struct sfas_softc *sc; 277 1.2.2.2 thorpej unsigned int len; 278 1.2.2.2 thorpej { 279 1.2.2.2 thorpej printf("ptsc_set_dma_tc(sc, len = 0x%08x)", len); 280 1.2.2.2 thorpej 281 1.2.2.2 thorpej *sc->sc_fas->sfas_tc_low = len; len >>= 8; 282 1.2.2.2 thorpej *sc->sc_fas->sfas_tc_mid = len; len >>= 8; 283 1.2.2.2 thorpej *sc->sc_fas->sfas_tc_high = len; 284 1.2.2.2 thorpej } 285 1.2.2.2 thorpej 286 1.2.2.2 thorpej /* Set DMA mode */ 287 1.2.2.2 thorpej void 288 1.2.2.2 thorpej ptsc_set_dma_mode(sc, mode) 289 1.2.2.2 thorpej struct sfas_softc *sc; 290 1.2.2.2 thorpej int mode; 291 1.2.2.2 thorpej { 292 1.2.2.2 thorpej #if 0 293 1.2.2.2 thorpej struct csc_specific *spec; 294 1.2.2.2 thorpej 295 1.2.2.2 thorpej spec = sc->sc_spec; 296 1.2.2.2 thorpej 297 1.2.2.2 thorpej spec->portbits = (spec->portbits & ~FLSC_PB_DMA_BITS) | mode; 298 1.2.2.2 thorpej *((flsc_regmap_p)sc->sc_fas)->hardbits = spec->portbits; 299 1.2.2.2 thorpej #endif 300 1.2.2.2 thorpej } 301 1.2.2.2 thorpej 302 1.2.2.2 thorpej /* Initialize DMA for transfer */ 303 1.2.2.2 thorpej int 304 1.2.2.2 thorpej ptsc_setup_dma(sc, ptr, len, mode) 305 1.2.2.2 thorpej struct sfas_softc *sc; 306 1.2.2.2 thorpej void *ptr; 307 1.2.2.2 thorpej int len; 308 1.2.2.2 thorpej int mode; 309 1.2.2.2 thorpej { 310 1.2.2.2 thorpej int retval; 311 1.2.2.2 thorpej 312 1.2.2.2 thorpej retval = 0; 313 1.2.2.2 thorpej 314 1.2.2.2 thorpej #if 0 315 1.2.2.2 thorpej printf("ptsc_setup_dma(sc, ptr = 0x%08x, len = 0x%08x, mode = 0x%08x)\n", (u_int)ptr, len, mode); 316 1.2.2.2 thorpej #endif 317 1.2.2.2 thorpej return(0); 318 1.2.2.2 thorpej 319 1.2.2.2 thorpej #if 0 320 1.2.2.2 thorpej switch(mode) { 321 1.2.2.2 thorpej case SFAS_DMA_READ: 322 1.2.2.2 thorpej case SFAS_DMA_WRITE: 323 1.2.2.2 thorpej flsc_set_dma_adr(sc, ptr); 324 1.2.2.2 thorpej if (mode == SFAS_DMA_READ) 325 1.2.2.2 thorpej flsc_set_dma_mode(sc,FLSC_PB_ENABLE_DMA | FLSC_PB_DMA_READ); 326 1.2.2.2 thorpej else 327 1.2.2.2 thorpej flsc_set_dma_mode(sc,FLSC_PB_ENABLE_DMA | FLSC_PB_DMA_WRITE); 328 1.2.2.2 thorpej 329 1.2.2.2 thorpej flsc_set_dma_tc(sc, len); 330 1.2.2.2 thorpej break; 331 1.2.2.2 thorpej 332 1.2.2.2 thorpej case SFAS_DMA_CLEAR: 333 1.2.2.2 thorpej default: 334 1.2.2.2 thorpej flsc_set_dma_mode(sc, FLSC_PB_DISABLE_DMA); 335 1.2.2.2 thorpej flsc_set_dma_adr(sc, 0); 336 1.2.2.2 thorpej 337 1.2.2.2 thorpej retval = (*sc->sc_fas->sfas_tc_high << 16) | 338 1.2.2.2 thorpej (*sc->sc_fas->sfas_tc_mid << 8) | 339 1.2.2.2 thorpej *sc->sc_fas->sfas_tc_low; 340 1.2.2.2 thorpej 341 1.2.2.2 thorpej flsc_set_dma_tc(sc, 0); 342 1.2.2.2 thorpej break; 343 1.2.2.2 thorpej } 344 1.2.2.2 thorpej 345 1.2.2.2 thorpej return(retval); 346 1.2.2.2 thorpej #endif 347 1.2.2.2 thorpej } 348 1.2.2.2 thorpej 349 1.2.2.2 thorpej /* Check if address and len is ok for DMA transfer */ 350 1.2.2.2 thorpej int 351 1.2.2.2 thorpej ptsc_need_bump(sc, ptr, len) 352 1.2.2.2 thorpej struct sfas_softc *sc; 353 1.2.2.2 thorpej void *ptr; 354 1.2.2.2 thorpej int len; 355 1.2.2.2 thorpej { 356 1.2.2.2 thorpej int p; 357 1.2.2.2 thorpej 358 1.2.2.2 thorpej p = (int)ptr & 0x03; 359 1.2.2.2 thorpej 360 1.2.2.2 thorpej if (p) { 361 1.2.2.2 thorpej p = 4-p; 362 1.2.2.2 thorpej 363 1.2.2.2 thorpej if (len < 256) 364 1.2.2.2 thorpej p = len; 365 1.2.2.2 thorpej } 366 1.2.2.2 thorpej 367 1.2.2.2 thorpej return(p); 368 1.2.2.2 thorpej } 369 1.2.2.2 thorpej 370 1.2.2.2 thorpej /* Interrupt driven routines */ 371 1.2.2.2 thorpej int 372 1.2.2.2 thorpej ptsc_build_dma_chain(sc, chain, p, l) 373 1.2.2.2 thorpej struct sfas_softc *sc; 374 1.2.2.2 thorpej struct sfas_dma_chain *chain; 375 1.2.2.2 thorpej void *p; 376 1.2.2.2 thorpej int l; 377 1.2.2.2 thorpej { 378 1.2.2.2 thorpej #if 0 379 1.2.2.2 thorpej vm_offset_t pa, lastpa; 380 1.2.2.2 thorpej char *ptr; 381 1.2.2.2 thorpej int len, prelen, postlen, max_t, n; 382 1.2.2.2 thorpej #endif 383 1.2.2.2 thorpej #if 0 384 1.2.2.2 thorpej printf("ptsc_build_dma_chain()\n"); 385 1.2.2.2 thorpej #endif 386 1.2.2.2 thorpej return(0); 387 1.2.2.2 thorpej 388 1.2.2.2 thorpej #if 0 389 1.2.2.2 thorpej if (l == 0) 390 1.2.2.2 thorpej return(0); 391 1.2.2.2 thorpej 392 1.2.2.2 thorpej #define set_link(n, p, l, f)\ 393 1.2.2.2 thorpej do { chain[n].ptr = (p); chain[n].len = (l); chain[n++].flg = (f); } while(0) 394 1.2.2.2 thorpej 395 1.2.2.2 thorpej n = 0; 396 1.2.2.2 thorpej 397 1.2.2.2 thorpej if (l < 512) 398 1.2.2.2 thorpej set_link(n, (vm_offset_t)p, l, SFAS_CHAIN_BUMP); 399 1.2.2.2 thorpej else if (p >= (void *)0xFF000000) { 400 1.2.2.2 thorpej while(l != 0) { 401 1.2.2.2 thorpej len = ((l > sc->sc_bump_sz) ? sc->sc_bump_sz : l); 402 1.2.2.2 thorpej 403 1.2.2.2 thorpej set_link(n, (vm_offset_t)p, len, SFAS_CHAIN_BUMP); 404 1.2.2.2 thorpej 405 1.2.2.2 thorpej p += len; 406 1.2.2.2 thorpej l -= len; 407 1.2.2.2 thorpej } 408 1.2.2.2 thorpej } else { 409 1.2.2.2 thorpej ptr = p; 410 1.2.2.2 thorpej len = l; 411 1.2.2.2 thorpej 412 1.2.2.2 thorpej pa = kvtop(ptr); 413 1.2.2.2 thorpej prelen = ((int)ptr & 0x03); 414 1.2.2.2 thorpej 415 1.2.2.2 thorpej if (prelen) { 416 1.2.2.2 thorpej prelen = 4-prelen; 417 1.2.2.2 thorpej set_link(n, (vm_offset_t)ptr, prelen, SFAS_CHAIN_BUMP); 418 1.2.2.2 thorpej ptr += prelen; 419 1.2.2.2 thorpej len -= prelen; 420 1.2.2.2 thorpej } 421 1.2.2.2 thorpej 422 1.2.2.2 thorpej lastpa = 0; 423 1.2.2.2 thorpej while(len > 3) { 424 1.2.2.2 thorpej pa = kvtop(ptr); 425 1.2.2.2 thorpej max_t = NBPG - (pa & PGOFSET); 426 1.2.2.2 thorpej if (max_t > len) 427 1.2.2.2 thorpej max_t = len; 428 1.2.2.2 thorpej 429 1.2.2.2 thorpej max_t &= ~3; 430 1.2.2.2 thorpej 431 1.2.2.2 thorpej if (lastpa == pa) 432 1.2.2.2 thorpej sc->sc_chain[n-1].len += max_t; 433 1.2.2.2 thorpej else 434 1.2.2.2 thorpej set_link(n, pa, max_t, SFAS_CHAIN_DMA); 435 1.2.2.2 thorpej 436 1.2.2.2 thorpej lastpa = pa+max_t; 437 1.2.2.2 thorpej 438 1.2.2.2 thorpej ptr += max_t; 439 1.2.2.2 thorpej len -= max_t; 440 1.2.2.2 thorpej } 441 1.2.2.2 thorpej 442 1.2.2.2 thorpej if (len) 443 1.2.2.2 thorpej set_link(n, (vm_offset_t)ptr, len, SFAS_CHAIN_BUMP); 444 1.2.2.2 thorpej } 445 1.2.2.2 thorpej 446 1.2.2.2 thorpej return(n); 447 1.2.2.2 thorpej #endif 448 1.2.2.2 thorpej } 449 1.2.2.2 thorpej 450 1.2.2.2 thorpej /* Turn on/off led */ 451 1.2.2.2 thorpej void 452 1.2.2.2 thorpej ptsc_led(sc, mode) 453 1.2.2.2 thorpej struct sfas_softc *sc; 454 1.2.2.2 thorpej int mode; 455 1.2.2.2 thorpej { 456 1.2.2.2 thorpej ptsc_regmap_p rp; 457 1.2.2.2 thorpej 458 1.2.2.2 thorpej rp = (ptsc_regmap_p)sc->sc_fas; 459 1.2.2.2 thorpej 460 1.2.2.2 thorpej if (mode) { 461 1.2.2.2 thorpej sc->sc_led_status++; 462 1.2.2.2 thorpej } else { 463 1.2.2.2 thorpej if (sc->sc_led_status) 464 1.2.2.2 thorpej sc->sc_led_status--; 465 1.2.2.2 thorpej } 466 1.2.2.2 thorpej *rp->led = (sc->sc_led_status?1:0); 467 1.2.2.2 thorpej } 468
Indexes created Sun Oct 12 22:09:51 GMT 2025