Lines Matching refs:sc
76 static void cuda_send_inbound(struct cuda_softc *sc);
77 static void cuda_send_outbound(struct cuda_softc *sc);
117 static uint8_t cuda_read_reg(struct cuda_softc *sc, u_int offset);
118 static void cuda_write_reg(struct cuda_softc *sc, u_int offset, uint8_t value);
143 struct cuda_softc *sc; in cuda_attach() local
149 sc = device_get_softc(dev); in cuda_attach()
150 sc->sc_dev = dev; in cuda_attach()
152 sc->sc_memrid = 0; in cuda_attach()
153 sc->sc_memr = bus_alloc_resource_any(dev, SYS_RES_MEMORY, in cuda_attach()
154 &sc->sc_memrid, RF_ACTIVE); in cuda_attach()
156 if (sc->sc_memr == NULL) { in cuda_attach()
161 sc->sc_irqrid = 0; in cuda_attach()
162 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_irqrid, in cuda_attach()
164 if (sc->sc_irq == NULL) { in cuda_attach()
166 bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, in cuda_attach()
167 sc->sc_memr); in cuda_attach()
171 if (bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_MISC | INTR_MPSAFE in cuda_attach()
172 | INTR_ENTROPY, NULL, cuda_intr, dev, &sc->sc_ih) != 0) { in cuda_attach()
174 bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, in cuda_attach()
175 sc->sc_memr); in cuda_attach()
176 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, in cuda_attach()
177 sc->sc_irq); in cuda_attach()
181 mtx_init(&sc->sc_mutex,"cuda",NULL,MTX_DEF | MTX_RECURSE); in cuda_attach()
183 sc->sc_sent = 0; in cuda_attach()
184 sc->sc_received = 0; in cuda_attach()
185 sc->sc_waiting = 0; in cuda_attach()
186 sc->sc_polling = 0; in cuda_attach()
187 sc->sc_state = CUDA_NOTREADY; in cuda_attach()
188 sc->sc_autopoll = 0; in cuda_attach()
189 sc->sc_rtc = -1; in cuda_attach()
191 STAILQ_INIT(&sc->sc_inq); in cuda_attach()
192 STAILQ_INIT(&sc->sc_outq); in cuda_attach()
193 STAILQ_INIT(&sc->sc_freeq); in cuda_attach()
196 STAILQ_INSERT_TAIL(&sc->sc_freeq, &sc->sc_pkts[i], pkt_q); in cuda_attach()
200 reg = cuda_read_reg(sc, vDirB); in cuda_attach()
202 cuda_write_reg(sc, vDirB, reg); in cuda_attach()
204 reg = cuda_read_reg(sc, vDirB); in cuda_attach()
206 cuda_write_reg(sc, vDirB, reg); in cuda_attach()
208 reg = cuda_read_reg(sc, vACR); in cuda_attach()
210 cuda_write_reg(sc, vACR, reg); in cuda_attach()
212 cuda_write_reg(sc, vACR, (cuda_read_reg(sc, vACR) | 0x0c) & ~0x10); in cuda_attach()
214 sc->sc_state = CUDA_IDLE; /* used by all types of hardware */ in cuda_attach()
216 cuda_write_reg(sc, vIER, 0x84); /* make sure VIA interrupts are on */ in cuda_attach()
218 cuda_idle(sc); /* reset ADB */ in cuda_attach()
222 i = cuda_read_reg(sc, vSR); /* clear interrupt */ in cuda_attach()
223 cuda_write_reg(sc, vIER, 0x04); /* no interrupts while clearing */ in cuda_attach()
224 cuda_idle(sc); /* reset state to idle */ in cuda_attach()
226 cuda_tip(sc); /* signal start of frame */ in cuda_attach()
228 cuda_toggle_ack(sc); in cuda_attach()
230 cuda_clear_tip(sc); in cuda_attach()
232 cuda_idle(sc); /* back to idle state */ in cuda_attach()
233 i = cuda_read_reg(sc, vSR); /* clear interrupt */ in cuda_attach()
234 cuda_write_reg(sc, vIER, 0x84); /* ints ok now */ in cuda_attach()
249 sc->adb_bus = device_add_child(dev,"adb",-1); in cuda_attach()
254 EVENTHANDLER_REGISTER(shutdown_final, cuda_shutdown, sc, in cuda_attach()
261 struct cuda_softc *sc; in cuda_detach() local
263 sc = device_get_softc(dev); in cuda_detach()
265 bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); in cuda_detach()
266 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, sc->sc_irq); in cuda_detach()
267 bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, sc->sc_memr); in cuda_detach()
268 mtx_destroy(&sc->sc_mutex); in cuda_detach()
274 cuda_read_reg(struct cuda_softc *sc, u_int offset) { in cuda_read_reg() argument
275 return (bus_read_1(sc->sc_memr, offset)); in cuda_read_reg()
279 cuda_write_reg(struct cuda_softc *sc, u_int offset, uint8_t value) { in cuda_write_reg() argument
280 bus_write_1(sc->sc_memr, offset, value); in cuda_write_reg()
284 cuda_idle(struct cuda_softc *sc) in cuda_idle() argument
288 reg = cuda_read_reg(sc, vBufB); in cuda_idle()
290 cuda_write_reg(sc, vBufB, reg); in cuda_idle()
294 cuda_tip(struct cuda_softc *sc) in cuda_tip() argument
298 reg = cuda_read_reg(sc, vBufB); in cuda_tip()
300 cuda_write_reg(sc, vBufB, reg); in cuda_tip()
304 cuda_clear_tip(struct cuda_softc *sc) in cuda_clear_tip() argument
308 reg = cuda_read_reg(sc, vBufB); in cuda_clear_tip()
310 cuda_write_reg(sc, vBufB, reg); in cuda_clear_tip()
314 cuda_in(struct cuda_softc *sc) in cuda_in() argument
318 reg = cuda_read_reg(sc, vACR); in cuda_in()
320 cuda_write_reg(sc, vACR, reg); in cuda_in()
324 cuda_out(struct cuda_softc *sc) in cuda_out() argument
328 reg = cuda_read_reg(sc, vACR); in cuda_out()
330 cuda_write_reg(sc, vACR, reg); in cuda_out()
334 cuda_toggle_ack(struct cuda_softc *sc) in cuda_toggle_ack() argument
338 reg = cuda_read_reg(sc, vBufB); in cuda_toggle_ack()
340 cuda_write_reg(sc, vBufB, reg); in cuda_toggle_ack()
344 cuda_ack_off(struct cuda_softc *sc) in cuda_ack_off() argument
348 reg = cuda_read_reg(sc, vBufB); in cuda_ack_off()
350 cuda_write_reg(sc, vBufB, reg); in cuda_ack_off()
354 cuda_intr_state(struct cuda_softc *sc) in cuda_intr_state() argument
356 return ((cuda_read_reg(sc, vBufB) & vPB3) == 0); in cuda_intr_state()
362 struct cuda_softc *sc = cookie; in cuda_send() local
363 device_t dev = sc->sc_dev; in cuda_send()
366 if (sc->sc_state == CUDA_NOTREADY) in cuda_send()
369 mtx_lock(&sc->sc_mutex); in cuda_send()
371 pkt = STAILQ_FIRST(&sc->sc_freeq); in cuda_send()
373 mtx_unlock(&sc->sc_mutex); in cuda_send()
381 STAILQ_REMOVE_HEAD(&sc->sc_freeq, pkt_q); in cuda_send()
382 STAILQ_INSERT_TAIL(&sc->sc_outq, pkt, pkt_q); in cuda_send()
389 if (sc->sc_waiting) { in cuda_send()
390 mtx_unlock(&sc->sc_mutex); in cuda_send()
394 cuda_send_outbound(sc); in cuda_send()
395 mtx_unlock(&sc->sc_mutex); in cuda_send()
397 if (sc->sc_polling || poll || cold) in cuda_send()
404 cuda_send_outbound(struct cuda_softc *sc) in cuda_send_outbound() argument
408 mtx_assert(&sc->sc_mutex, MA_OWNED); in cuda_send_outbound()
410 pkt = STAILQ_FIRST(&sc->sc_outq); in cuda_send_outbound()
414 sc->sc_out_length = pkt->len + 1; in cuda_send_outbound()
415 memcpy(sc->sc_out, &pkt->type, pkt->len + 1); in cuda_send_outbound()
416 sc->sc_sent = 0; in cuda_send_outbound()
418 STAILQ_REMOVE_HEAD(&sc->sc_outq, pkt_q); in cuda_send_outbound()
419 STAILQ_INSERT_TAIL(&sc->sc_freeq, pkt, pkt_q); in cuda_send_outbound()
421 sc->sc_waiting = 1; in cuda_send_outbound()
423 cuda_poll(sc->sc_dev); in cuda_send_outbound()
427 if (sc->sc_state == CUDA_IDLE && !cuda_intr_state(sc)) { in cuda_send_outbound()
428 sc->sc_state = CUDA_OUT; in cuda_send_outbound()
429 cuda_out(sc); in cuda_send_outbound()
430 cuda_write_reg(sc, vSR, sc->sc_out[0]); in cuda_send_outbound()
431 cuda_ack_off(sc); in cuda_send_outbound()
432 cuda_tip(sc); in cuda_send_outbound()
437 cuda_send_inbound(struct cuda_softc *sc) in cuda_send_inbound() argument
442 dev = sc->sc_dev; in cuda_send_inbound()
444 mtx_lock(&sc->sc_mutex); in cuda_send_inbound()
446 while ((pkt = STAILQ_FIRST(&sc->sc_inq)) != NULL) { in cuda_send_inbound()
447 STAILQ_REMOVE_HEAD(&sc->sc_inq, pkt_q); in cuda_send_inbound()
449 mtx_unlock(&sc->sc_mutex); in cuda_send_inbound()
455 adb_receive_raw_packet(sc->adb_bus, in cuda_send_inbound()
459 adb_receive_raw_packet(sc->adb_bus, in cuda_send_inbound()
464 mtx_lock(&sc->sc_mutex); in cuda_send_inbound()
467 sc->sc_autopoll = 1; in cuda_send_inbound()
470 memcpy(&sc->sc_rtc, &pkt->data[2], in cuda_send_inbound()
471 sizeof(sc->sc_rtc)); in cuda_send_inbound()
472 wakeup(&sc->sc_rtc); in cuda_send_inbound()
477 mtx_unlock(&sc->sc_mutex); in cuda_send_inbound()
494 mtx_lock(&sc->sc_mutex); in cuda_send_inbound()
496 STAILQ_INSERT_TAIL(&sc->sc_freeq, pkt, pkt_q); in cuda_send_inbound()
499 mtx_unlock(&sc->sc_mutex); in cuda_send_inbound()
505 struct cuda_softc *sc = device_get_softc(dev); in cuda_poll() local
507 if (sc->sc_state == CUDA_IDLE && !cuda_intr_state(sc) && in cuda_poll()
508 !sc->sc_waiting) in cuda_poll()
519 struct cuda_softc *sc; in cuda_intr() local
524 sc = device_get_softc(dev); in cuda_intr()
526 mtx_lock(&sc->sc_mutex); in cuda_intr()
529 reg = cuda_read_reg(sc, vIFR); in cuda_intr()
531 mtx_unlock(&sc->sc_mutex); in cuda_intr()
535 cuda_write_reg(sc, vIFR, 0x7f); /* Clear interrupt */ in cuda_intr()
538 switch (sc->sc_state) { in cuda_intr()
545 sc->sc_in[1] = cuda_read_reg(sc, vSR); in cuda_intr()
547 if (cuda_intr_state(sc) == 0) { in cuda_intr()
550 if (sc->sc_waiting) { in cuda_intr()
553 sc->sc_state = CUDA_OUT; in cuda_intr()
554 sc->sc_sent = 0; in cuda_intr()
555 cuda_out(sc); in cuda_intr()
556 cuda_write_reg(sc, vSR, sc->sc_out[1]); in cuda_intr()
557 cuda_ack_off(sc); in cuda_intr()
558 cuda_tip(sc); in cuda_intr()
563 cuda_in(sc); in cuda_intr()
564 cuda_tip(sc); in cuda_intr()
566 sc->sc_received = 1; in cuda_intr()
567 sc->sc_state = CUDA_IN; in cuda_intr()
571 sc->sc_in[sc->sc_received] = cuda_read_reg(sc, vSR); in cuda_intr()
574 if (sc->sc_received > 255) { in cuda_intr()
576 if (sc->sc_received == 256) { in cuda_intr()
581 sc->sc_received++; in cuda_intr()
584 if (cuda_intr_state(sc) == 0) { in cuda_intr()
587 cuda_toggle_ack(sc); in cuda_intr()
594 cuda_idle(sc); in cuda_intr()
597 pkt = STAILQ_FIRST(&sc->sc_freeq); in cuda_intr()
601 pkt->len = sc->sc_received - 2; in cuda_intr()
602 pkt->type = sc->sc_in[1]; in cuda_intr()
603 memcpy(pkt->data, &sc->sc_in[2], pkt->len); in cuda_intr()
605 STAILQ_REMOVE_HEAD(&sc->sc_freeq, pkt_q); in cuda_intr()
606 STAILQ_INSERT_TAIL(&sc->sc_inq, pkt, pkt_q); in cuda_intr()
611 sc->sc_state = CUDA_IDLE; in cuda_intr()
612 sc->sc_received = 0; in cuda_intr()
618 if (sc->sc_waiting == 1) { in cuda_intr()
620 sc->sc_sent = 0; in cuda_intr()
621 sc->sc_state = CUDA_OUT; in cuda_intr()
629 if (cuda_intr_state(sc)) { in cuda_intr()
630 cuda_in(sc); in cuda_intr()
631 cuda_idle(sc); in cuda_intr()
632 sc->sc_sent = 0; in cuda_intr()
633 sc->sc_state = CUDA_IDLE; in cuda_intr()
634 sc->sc_received = 0; in cuda_intr()
644 cuda_out(sc); in cuda_intr()
645 cuda_write_reg(sc, vSR, in cuda_intr()
646 sc->sc_out[sc->sc_sent]); in cuda_intr()
647 cuda_ack_off(sc); in cuda_intr()
648 cuda_tip(sc); in cuda_intr()
654 cuda_read_reg(sc, vSR); /* reset SR-intr in IFR */ in cuda_intr()
656 sc->sc_sent++; in cuda_intr()
657 if (cuda_intr_state(sc)) { /* ADB intr low during write */ in cuda_intr()
658 cuda_in(sc); /* make sure SR is set to IN */ in cuda_intr()
659 cuda_idle(sc); in cuda_intr()
660 sc->sc_sent = 0; /* must start all over */ in cuda_intr()
661 sc->sc_state = CUDA_IDLE; /* new state */ in cuda_intr()
662 sc->sc_received = 0; in cuda_intr()
663 sc->sc_waiting = 1; /* must retry when done with in cuda_intr()
670 if (sc->sc_out_length == sc->sc_sent) { /* check for done */ in cuda_intr()
671 sc->sc_waiting = 0; /* done writing */ in cuda_intr()
672 sc->sc_state = CUDA_IDLE; /* signal bus is idle */ in cuda_intr()
673 cuda_in(sc); in cuda_intr()
674 cuda_idle(sc); in cuda_intr()
677 cuda_write_reg(sc, vSR, sc->sc_out[sc->sc_sent]); in cuda_intr()
678 cuda_toggle_ack(sc); /* signal byte ready to in cuda_intr()
690 mtx_unlock(&sc->sc_mutex); in cuda_intr()
693 cuda_send_inbound(sc); in cuda_intr()
695 mtx_lock(&sc->sc_mutex); in cuda_intr()
697 if (!sc->sc_waiting && sc->sc_state == CUDA_IDLE) in cuda_intr()
698 cuda_send_outbound(sc); in cuda_intr()
700 mtx_unlock(&sc->sc_mutex); in cuda_intr()
708 struct cuda_softc *sc = device_get_softc(dev); in cuda_adb_send() local
718 cuda_send(sc, poll, len + 2, packet); in cuda_adb_send()
725 struct cuda_softc *sc = device_get_softc(dev); in cuda_adb_autopoll() local
729 mtx_lock(&sc->sc_mutex); in cuda_adb_autopoll()
731 if (cmd[2] == sc->sc_autopoll) { in cuda_adb_autopoll()
732 mtx_unlock(&sc->sc_mutex); in cuda_adb_autopoll()
736 sc->sc_autopoll = -1; in cuda_adb_autopoll()
737 cuda_send(sc, 1, 3, cmd); in cuda_adb_autopoll()
739 mtx_unlock(&sc->sc_mutex); in cuda_adb_autopoll()
747 struct cuda_softc *sc = xsc; in cuda_shutdown() local
757 cuda_poll(sc->sc_dev); in cuda_shutdown()
758 cuda_send(sc, 1, 2, cmd); in cuda_shutdown()
761 cuda_poll(sc->sc_dev); in cuda_shutdown()
769 struct cuda_softc *sc = device_get_softc(dev); in cuda_gettime() local
772 mtx_lock(&sc->sc_mutex); in cuda_gettime()
773 sc->sc_rtc = -1; in cuda_gettime()
774 cuda_send(sc, 1, 2, cmd); in cuda_gettime()
775 if (sc->sc_rtc == -1) in cuda_gettime()
776 mtx_sleep(&sc->sc_rtc, &sc->sc_mutex, 0, "rtc", 100); in cuda_gettime()
778 ts->tv_sec = sc->sc_rtc - DIFF19041970; in cuda_gettime()
780 mtx_unlock(&sc->sc_mutex); in cuda_gettime()
788 struct cuda_softc *sc = device_get_softc(dev); in cuda_settime() local
795 mtx_lock(&sc->sc_mutex); in cuda_settime()
796 cuda_send(sc, 0, 6, cmd); in cuda_settime()
797 mtx_unlock(&sc->sc_mutex); in cuda_settime()