Lines Matching full: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",DEVICE_UNIT_ANY); in cuda_attach()
254 EVENTHANDLER_REGISTER(shutdown_final, cuda_shutdown, sc, in cuda_attach()
262 struct cuda_softc *sc; in cuda_detach() local
269 sc = device_get_softc(dev); in cuda_detach()
271 bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); in cuda_detach()
272 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, sc->sc_irq); in cuda_detach()
273 bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, sc->sc_memr); in cuda_detach()
274 mtx_destroy(&sc->sc_mutex); in cuda_detach()
280 cuda_read_reg(struct cuda_softc *sc, u_int offset) { in cuda_read_reg() argument
281 return (bus_read_1(sc->sc_memr, offset)); in cuda_read_reg()
285 cuda_write_reg(struct cuda_softc *sc, u_int offset, uint8_t value) { in cuda_write_reg() argument
286 bus_write_1(sc->sc_memr, offset, value); in cuda_write_reg()
290 cuda_idle(struct cuda_softc *sc) in cuda_idle() argument
294 reg = cuda_read_reg(sc, vBufB); in cuda_idle()
296 cuda_write_reg(sc, vBufB, reg); in cuda_idle()
300 cuda_tip(struct cuda_softc *sc) in cuda_tip() argument
304 reg = cuda_read_reg(sc, vBufB); in cuda_tip()
306 cuda_write_reg(sc, vBufB, reg); in cuda_tip()
310 cuda_clear_tip(struct cuda_softc *sc) in cuda_clear_tip() argument
314 reg = cuda_read_reg(sc, vBufB); in cuda_clear_tip()
316 cuda_write_reg(sc, vBufB, reg); in cuda_clear_tip()
320 cuda_in(struct cuda_softc *sc) in cuda_in() argument
324 reg = cuda_read_reg(sc, vACR); in cuda_in()
326 cuda_write_reg(sc, vACR, reg); in cuda_in()
330 cuda_out(struct cuda_softc *sc) in cuda_out() argument
334 reg = cuda_read_reg(sc, vACR); in cuda_out()
336 cuda_write_reg(sc, vACR, reg); in cuda_out()
340 cuda_toggle_ack(struct cuda_softc *sc) in cuda_toggle_ack() argument
344 reg = cuda_read_reg(sc, vBufB); in cuda_toggle_ack()
346 cuda_write_reg(sc, vBufB, reg); in cuda_toggle_ack()
350 cuda_ack_off(struct cuda_softc *sc) in cuda_ack_off() argument
354 reg = cuda_read_reg(sc, vBufB); in cuda_ack_off()
356 cuda_write_reg(sc, vBufB, reg); in cuda_ack_off()
360 cuda_intr_state(struct cuda_softc *sc) in cuda_intr_state() argument
362 return ((cuda_read_reg(sc, vBufB) & vPB3) == 0); in cuda_intr_state()
368 struct cuda_softc *sc = cookie; in cuda_send() local
369 device_t dev = sc->sc_dev; in cuda_send()
372 if (sc->sc_state == CUDA_NOTREADY) in cuda_send()
375 mtx_lock(&sc->sc_mutex); in cuda_send()
377 pkt = STAILQ_FIRST(&sc->sc_freeq); in cuda_send()
379 mtx_unlock(&sc->sc_mutex); in cuda_send()
387 STAILQ_REMOVE_HEAD(&sc->sc_freeq, pkt_q); in cuda_send()
388 STAILQ_INSERT_TAIL(&sc->sc_outq, pkt, pkt_q); in cuda_send()
395 if (sc->sc_waiting) { in cuda_send()
396 mtx_unlock(&sc->sc_mutex); in cuda_send()
400 cuda_send_outbound(sc); in cuda_send()
401 mtx_unlock(&sc->sc_mutex); in cuda_send()
403 if (sc->sc_polling || poll || cold) in cuda_send()
410 cuda_send_outbound(struct cuda_softc *sc) in cuda_send_outbound() argument
414 mtx_assert(&sc->sc_mutex, MA_OWNED); in cuda_send_outbound()
416 pkt = STAILQ_FIRST(&sc->sc_outq); in cuda_send_outbound()
420 sc->sc_out_length = pkt->len + 1; in cuda_send_outbound()
421 memcpy(sc->sc_out, &pkt->type, pkt->len + 1); in cuda_send_outbound()
422 sc->sc_sent = 0; in cuda_send_outbound()
424 STAILQ_REMOVE_HEAD(&sc->sc_outq, pkt_q); in cuda_send_outbound()
425 STAILQ_INSERT_TAIL(&sc->sc_freeq, pkt, pkt_q); in cuda_send_outbound()
427 sc->sc_waiting = 1; in cuda_send_outbound()
429 cuda_poll(sc->sc_dev); in cuda_send_outbound()
433 if (sc->sc_state == CUDA_IDLE && !cuda_intr_state(sc)) { in cuda_send_outbound()
434 sc->sc_state = CUDA_OUT; in cuda_send_outbound()
435 cuda_out(sc); in cuda_send_outbound()
436 cuda_write_reg(sc, vSR, sc->sc_out[0]); in cuda_send_outbound()
437 cuda_ack_off(sc); in cuda_send_outbound()
438 cuda_tip(sc); in cuda_send_outbound()
443 cuda_send_inbound(struct cuda_softc *sc) in cuda_send_inbound() argument
448 dev = sc->sc_dev; in cuda_send_inbound()
450 mtx_lock(&sc->sc_mutex); in cuda_send_inbound()
452 while ((pkt = STAILQ_FIRST(&sc->sc_inq)) != NULL) { in cuda_send_inbound()
453 STAILQ_REMOVE_HEAD(&sc->sc_inq, pkt_q); in cuda_send_inbound()
455 mtx_unlock(&sc->sc_mutex); in cuda_send_inbound()
461 adb_receive_raw_packet(sc->adb_bus, in cuda_send_inbound()
465 adb_receive_raw_packet(sc->adb_bus, in cuda_send_inbound()
470 mtx_lock(&sc->sc_mutex); in cuda_send_inbound()
473 sc->sc_autopoll = 1; in cuda_send_inbound()
476 memcpy(&sc->sc_rtc, &pkt->data[2], in cuda_send_inbound()
477 sizeof(sc->sc_rtc)); in cuda_send_inbound()
478 wakeup(&sc->sc_rtc); in cuda_send_inbound()
483 mtx_unlock(&sc->sc_mutex); in cuda_send_inbound()
500 mtx_lock(&sc->sc_mutex); in cuda_send_inbound()
502 STAILQ_INSERT_TAIL(&sc->sc_freeq, pkt, pkt_q); in cuda_send_inbound()
505 mtx_unlock(&sc->sc_mutex); in cuda_send_inbound()
511 struct cuda_softc *sc = device_get_softc(dev); in cuda_poll() local
513 if (sc->sc_state == CUDA_IDLE && !cuda_intr_state(sc) && in cuda_poll()
514 !sc->sc_waiting) in cuda_poll()
525 struct cuda_softc *sc; in cuda_intr() local
530 sc = device_get_softc(dev); in cuda_intr()
532 mtx_lock(&sc->sc_mutex); in cuda_intr()
535 reg = cuda_read_reg(sc, vIFR); in cuda_intr()
537 mtx_unlock(&sc->sc_mutex); in cuda_intr()
541 cuda_write_reg(sc, vIFR, 0x7f); /* Clear interrupt */ in cuda_intr()
544 switch (sc->sc_state) { in cuda_intr()
551 sc->sc_in[1] = cuda_read_reg(sc, vSR); in cuda_intr()
553 if (cuda_intr_state(sc) == 0) { in cuda_intr()
556 if (sc->sc_waiting) { in cuda_intr()
559 sc->sc_state = CUDA_OUT; in cuda_intr()
560 sc->sc_sent = 0; in cuda_intr()
561 cuda_out(sc); in cuda_intr()
562 cuda_write_reg(sc, vSR, sc->sc_out[1]); in cuda_intr()
563 cuda_ack_off(sc); in cuda_intr()
564 cuda_tip(sc); in cuda_intr()
569 cuda_in(sc); in cuda_intr()
570 cuda_tip(sc); in cuda_intr()
572 sc->sc_received = 1; in cuda_intr()
573 sc->sc_state = CUDA_IN; in cuda_intr()
577 sc->sc_in[sc->sc_received] = cuda_read_reg(sc, vSR); in cuda_intr()
580 if (sc->sc_received > 255) { in cuda_intr()
582 if (sc->sc_received == 256) { in cuda_intr()
587 sc->sc_received++; in cuda_intr()
590 if (cuda_intr_state(sc) == 0) { in cuda_intr()
593 cuda_toggle_ack(sc); in cuda_intr()
600 cuda_idle(sc); in cuda_intr()
603 pkt = STAILQ_FIRST(&sc->sc_freeq); in cuda_intr()
607 pkt->len = sc->sc_received - 2; in cuda_intr()
608 pkt->type = sc->sc_in[1]; in cuda_intr()
609 memcpy(pkt->data, &sc->sc_in[2], pkt->len); in cuda_intr()
611 STAILQ_REMOVE_HEAD(&sc->sc_freeq, pkt_q); in cuda_intr()
612 STAILQ_INSERT_TAIL(&sc->sc_inq, pkt, pkt_q); in cuda_intr()
617 sc->sc_state = CUDA_IDLE; in cuda_intr()
618 sc->sc_received = 0; in cuda_intr()
624 if (sc->sc_waiting == 1) { in cuda_intr()
626 sc->sc_sent = 0; in cuda_intr()
627 sc->sc_state = CUDA_OUT; in cuda_intr()
635 if (cuda_intr_state(sc)) { in cuda_intr()
636 cuda_in(sc); in cuda_intr()
637 cuda_idle(sc); in cuda_intr()
638 sc->sc_sent = 0; in cuda_intr()
639 sc->sc_state = CUDA_IDLE; in cuda_intr()
640 sc->sc_received = 0; in cuda_intr()
650 cuda_out(sc); in cuda_intr()
651 cuda_write_reg(sc, vSR, in cuda_intr()
652 sc->sc_out[sc->sc_sent]); in cuda_intr()
653 cuda_ack_off(sc); in cuda_intr()
654 cuda_tip(sc); in cuda_intr()
660 cuda_read_reg(sc, vSR); /* reset SR-intr in IFR */ in cuda_intr()
662 sc->sc_sent++; in cuda_intr()
663 if (cuda_intr_state(sc)) { /* ADB intr low during write */ in cuda_intr()
664 cuda_in(sc); /* make sure SR is set to IN */ in cuda_intr()
665 cuda_idle(sc); in cuda_intr()
666 sc->sc_sent = 0; /* must start all over */ in cuda_intr()
667 sc->sc_state = CUDA_IDLE; /* new state */ in cuda_intr()
668 sc->sc_received = 0; in cuda_intr()
669 sc->sc_waiting = 1; /* must retry when done with in cuda_intr()
676 if (sc->sc_out_length == sc->sc_sent) { /* check for done */ in cuda_intr()
677 sc->sc_waiting = 0; /* done writing */ in cuda_intr()
678 sc->sc_state = CUDA_IDLE; /* signal bus is idle */ in cuda_intr()
679 cuda_in(sc); in cuda_intr()
680 cuda_idle(sc); in cuda_intr()
683 cuda_write_reg(sc, vSR, sc->sc_out[sc->sc_sent]); in cuda_intr()
684 cuda_toggle_ack(sc); /* signal byte ready to in cuda_intr()
696 mtx_unlock(&sc->sc_mutex); in cuda_intr()
699 cuda_send_inbound(sc); in cuda_intr()
701 mtx_lock(&sc->sc_mutex); in cuda_intr()
703 if (!sc->sc_waiting && sc->sc_state == CUDA_IDLE) in cuda_intr()
704 cuda_send_outbound(sc); in cuda_intr()
706 mtx_unlock(&sc->sc_mutex); in cuda_intr()
714 struct cuda_softc *sc = device_get_softc(dev); in cuda_adb_send() local
724 cuda_send(sc, poll, len + 2, packet); in cuda_adb_send()
731 struct cuda_softc *sc = device_get_softc(dev); in cuda_adb_autopoll() local
735 mtx_lock(&sc->sc_mutex); in cuda_adb_autopoll()
737 if (cmd[2] == sc->sc_autopoll) { in cuda_adb_autopoll()
738 mtx_unlock(&sc->sc_mutex); in cuda_adb_autopoll()
742 sc->sc_autopoll = -1; in cuda_adb_autopoll()
743 cuda_send(sc, 1, 3, cmd); in cuda_adb_autopoll()
745 mtx_unlock(&sc->sc_mutex); in cuda_adb_autopoll()
753 struct cuda_softc *sc = xsc; in cuda_shutdown() local
763 cuda_poll(sc->sc_dev); in cuda_shutdown()
764 cuda_send(sc, 1, 2, cmd); in cuda_shutdown()
767 cuda_poll(sc->sc_dev); in cuda_shutdown()
775 struct cuda_softc *sc = device_get_softc(dev); in cuda_gettime() local
778 mtx_lock(&sc->sc_mutex); in cuda_gettime()
779 sc->sc_rtc = -1; in cuda_gettime()
780 cuda_send(sc, 1, 2, cmd); in cuda_gettime()
781 if (sc->sc_rtc == -1) in cuda_gettime()
782 mtx_sleep(&sc->sc_rtc, &sc->sc_mutex, 0, "rtc", 100); in cuda_gettime()
784 ts->tv_sec = sc->sc_rtc - DIFF19041970; in cuda_gettime()
786 mtx_unlock(&sc->sc_mutex); in cuda_gettime()
794 struct cuda_softc *sc = device_get_softc(dev); in cuda_settime() local
801 mtx_lock(&sc->sc_mutex); in cuda_settime()
802 cuda_send(sc, 0, 6, cmd); in cuda_settime()
803 mtx_unlock(&sc->sc_mutex); in cuda_settime()