Module Name: src
Committed By: jmcneill
Date: Wed Feb 12 11:33:35 UTC 2025
Modified Files:
src/sys/arch/evbppc/conf: WII files.wii
Added Files:
src/sys/arch/evbppc/wii/dev: di.c
Log Message:
wii: Add support for Wii DVD drive.
This adds a virtual SCSI HBA driver that is able to read DVD video discs
inserted in the Wii.
To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/arch/evbppc/conf/WII
cvs rdiff -u -r1.4 -r1.5 src/sys/arch/evbppc/conf/files.wii
cvs rdiff -u -r0 -r1.1 src/sys/arch/evbppc/wii/dev/di.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/evbppc/conf/WII
diff -u src/sys/arch/evbppc/conf/WII:1.7 src/sys/arch/evbppc/conf/WII:1.8
--- src/sys/arch/evbppc/conf/WII:1.7 Sun Jan 19 00:29:28 2025
+++ src/sys/arch/evbppc/conf/WII Wed Feb 12 11:33:34 2025
@@ -1,4 +1,4 @@
-# $NetBSD: WII,v 1.7 2025/01/19 00:29:28 jmcneill Exp $
+# $NetBSD: WII,v 1.8 2025/02/12 11:33:34 jmcneill Exp $
#
# Nintendo Wii
#
@@ -143,7 +143,6 @@ gpioiic0 at gpio0 offset 0 mask 0xc000 f
iic0 at gpioiic0
avenc0 at iic0 addr 0x70 # A/V Encoder
-#iosipc0 at hollywood0 addr 0x0d000000 irq 30 # IOS IPC
resetbtn0 at hollywood0 irq 17 # Reset button
ehci0 at hollywood0 addr 0x0d040000 irq 4 # EHCI
@@ -157,6 +156,8 @@ sdmmc* at sdmmcbus?
ld* at sdmmc?
bwi* at sdmmc? # WLAN
+di0 at hollywood0 addr 0x0d806000 irq 18 # Drive interface
+
include "dev/usb/usbdevices.config"
include "dev/bluetooth/bluetoothdevices.config"
Index: src/sys/arch/evbppc/conf/files.wii
diff -u src/sys/arch/evbppc/conf/files.wii:1.4 src/sys/arch/evbppc/conf/files.wii:1.5
--- src/sys/arch/evbppc/conf/files.wii:1.4 Thu Jan 25 11:47:53 2024
+++ src/sys/arch/evbppc/conf/files.wii Wed Feb 12 11:33:34 2025
@@ -1,4 +1,4 @@
-# $NetBSD: files.wii,v 1.4 2024/01/25 11:47:53 jmcneill Exp $
+# $NetBSD: files.wii,v 1.5 2025/02/12 11:33:34 jmcneill Exp $
#
#
maxpartitions 16
@@ -81,3 +81,7 @@ file arch/evbppc/wii/dev/sdhc_hollywood.
device avenc
attach avenc at iic
file arch/evbppc/wii/dev/avenc.c avenc
+
+device di: scsi
+attach di at hollywood
+file arch/evbppc/wii/dev/di.c di
Added files:
Index: src/sys/arch/evbppc/wii/dev/di.c
diff -u /dev/null src/sys/arch/evbppc/wii/dev/di.c:1.1
--- /dev/null Wed Feb 12 11:33:35 2025
+++ src/sys/arch/evbppc/wii/dev/di.c Wed Feb 12 11:33:34 2025
@@ -0,0 +1,700 @@
+/* $NetBSD: di.c,v 1.1 2025/02/12 11:33:34 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2025 Jared McNeill <jmcne...@invisible.ca>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: di.c,v 1.1 2025/02/12 11:33:34 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/systm.h>
+#include <sys/callout.h>
+#include <sys/buf.h>
+#include <sys/dvdio.h>
+
+#include <uvm/uvm_extern.h>
+
+#include <dev/scsipi/scsi_all.h>
+#include <dev/scsipi/scsi_disk.h>
+#include <dev/scsipi/scsipi_all.h>
+#include <dev/scsipi/scsipi_cd.h>
+#include <dev/scsipi/scsipi_disk.h>
+#include <dev/scsipi/scsiconf.h>
+
+#include <machine/wii.h>
+#include <machine/pio.h>
+#include "hollywood.h"
+
+#ifdef DI_DEBUG
+#define DPRINTF(dv, fmt, ...) device_printf(dv, fmt, ## __VA_ARGS__)
+#else
+#define DPRINTF(dv, fmt, ...)
+#endif
+
+#define DI_REG_SIZE 0x40
+
+#define DISR 0x00
+#define DISR_BRKINT __BIT(6)
+#define DISR_BRKINTMASK __BIT(5)
+#define DISR_TCINT __BIT(4)
+#define DISR_TCINTMASK __BIT(3)
+#define DISR_DEINT __BIT(2)
+#define DISR_DEINTMASK __BIT(1)
+#define DISR_BRK __BIT(0)
+#define DICVR 0x04
+#define DICVR_CVRINT __BIT(2)
+#define DICVR_CVRINTMASK __BIT(1)
+#define DICVR_CVR __BIT(0)
+#define DICMDBUF0 0x08
+#define DICMDBUF1 0x0c
+#define DICMDBUF2 0x10
+#define DIMAR 0x14
+#define DILENGTH 0x18
+#define DICR 0x1c
+#define DICR_DMA __BIT(1)
+#define DICR_TSTART __BIT(0)
+#define DIMMBUF 0x20
+#define DICFG 0x24
+
+#define DI_CMD_INQUIRY 0x12000000
+#define DI_CMD_REPORT_KEY(x) (0xa4000000 | ((uint32_t)(x) << 16))
+#define DI_CMD_READ_DVD_STRUCT(x) (0xad000000 | ((uint32_t)(x) << 24))
+#define DI_CMD_READ_DVD 0xd0000000
+#define DI_CMD_REQUEST_ERROR 0xe0000000
+#define DI_CMD_STOP_MOTOR 0xe3000000
+
+#define DVDBLOCKSIZE 2048
+
+#define DI_IDLE_TIMEOUT_MS 30000
+
+struct di_softc;
+
+static int di_match(device_t, cfdata_t, void *);
+static void di_attach(device_t, device_t, void *);
+
+static bool di_shutdown(device_t, int);
+
+static int di_intr(void *);
+static void di_timeout(void *);
+static void di_idle(void *);
+
+static void di_request(struct scsipi_channel *, scsipi_adapter_req_t,
+ void *);
+static void di_init_regs(struct di_softc *);
+static void di_reset(struct di_softc *, bool);
+
+struct di_response_inquiry {
+ uint16_t revision_level;
+ uint16_t device_code;
+ uint32_t release_date;
+ uint8_t padding[24];
+} __aligned(4);
+CTASSERT(sizeof(struct di_response_inquiry) == 0x20);
+
+struct di_softc {
+ device_t sc_dev;
+ bus_space_tag_t sc_bst;
+ bus_space_handle_t sc_bsh;
+ bus_dma_tag_t sc_dmat;
+
+ struct scsipi_adapter sc_adapter;
+ struct scsipi_channel sc_channel;
+
+ struct scsipi_xfer *sc_cur_xs;
+ callout_t sc_timeout;
+ callout_t sc_idle;
+ int sc_pamr;
+
+ bus_dmamap_t sc_dma_map;
+ void *sc_dma_addr;
+ size_t sc_dma_size;
+ bus_dma_segment_t sc_dma_segs[1];
+};
+
+#define WR4(sc, reg, val) \
+ bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val))
+#define RD4(sc, reg) \
+ bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg))
+
+CFATTACH_DECL_NEW(di, sizeof(struct di_softc),
+ di_match, di_attach, NULL, NULL);
+
+static int
+di_match(device_t parent, cfdata_t cf, void *aux)
+{
+ return 1;
+}
+
+static void
+di_attach(device_t parent, device_t self, void *aux)
+{
+ struct hollywood_attach_args *haa = aux;
+ struct di_softc *sc = device_private(self);
+ struct scsipi_adapter *adapt = &sc->sc_adapter;
+ struct scsipi_channel *chan = &sc->sc_channel;
+ int error, nsegs;
+
+ sc->sc_dev = self;
+ sc->sc_dmat = haa->haa_dmat;
+ sc->sc_bst = haa->haa_bst;
+ error = bus_space_map(sc->sc_bst, haa->haa_addr, DI_REG_SIZE,
+ 0, &sc->sc_bsh);
+ if (error != 0) {
+ aprint_error(": couldn't map registers (%d)\n", error);
+ return;
+ }
+
+ aprint_naive("\n");
+ aprint_normal(": Drive Interface\n");
+
+ callout_init(&sc->sc_timeout, 0);
+ callout_setfunc(&sc->sc_timeout, di_timeout, sc);
+ callout_init(&sc->sc_idle, 0);
+ callout_setfunc(&sc->sc_idle, di_idle, sc);
+
+ sc->sc_dma_size = MAXPHYS;
+ error = bus_dmamem_alloc(sc->sc_dmat, sc->sc_dma_size, PAGE_SIZE, 0,
+ sc->sc_dma_segs, 1, &nsegs, BUS_DMA_WAITOK);
+ if (error != 0) {
+ aprint_error_dev(self, "bus_dmamem_alloc failed: %d\n", error);
+ return;
+ }
+ error = bus_dmamem_map(sc->sc_dmat, sc->sc_dma_segs, nsegs,
+ sc->sc_dma_size, &sc->sc_dma_addr, BUS_DMA_WAITOK);
+ if (error != 0) {
+ aprint_error_dev(self, "bus_dmamem_map failed: %d\n", error);
+ return;
+ }
+ error = bus_dmamap_create(sc->sc_dmat, sc->sc_dma_size, nsegs,
+ sc->sc_dma_size, 0, BUS_DMA_WAITOK, &sc->sc_dma_map);
+ if (error != 0) {
+ aprint_error_dev(self, "bus_dmamap_create failed: %d\n", error);
+ return;
+ }
+ error = bus_dmamap_load(sc->sc_dmat, sc->sc_dma_map, sc->sc_dma_addr,
+ sc->sc_dma_size, NULL, BUS_DMA_WAITOK);
+ if (error != 0) {
+ aprint_error_dev(self, "bus_dmamap_load failed: %d\n", error);
+ return;
+ }
+
+ memset(adapt, 0, sizeof(*adapt));
+ adapt->adapt_nchannels = 1;
+ adapt->adapt_request = di_request;
+ adapt->adapt_minphys = minphys;
+ adapt->adapt_dev = self;
+ adapt->adapt_max_periph = 1;
+ adapt->adapt_openings = 1;
+
+ memset(chan, 0, sizeof(*chan));
+ chan->chan_bustype = &scsi_bustype;
+ chan->chan_ntargets = 2;
+ chan->chan_nluns = 1;
+ chan->chan_id = 0;
+ chan->chan_flags = SCSIPI_CHAN_NOSETTLE;
+ chan->chan_adapter = adapt;
+
+ config_found(self, chan, scsiprint, CFARGS(.iattr = "scsi"));
+
+ hollywood_intr_establish(haa->haa_irq, IPL_BIO, di_intr, sc,
+ device_xname(self));
+
+ di_init_regs(sc);
+ callout_schedule(&sc->sc_idle, mstohz(DI_IDLE_TIMEOUT_MS));
+
+ pmf_device_register1(self, NULL, NULL, di_shutdown);
+}
+
+static bool
+di_shutdown(device_t dev, int how)
+{
+ struct di_softc *sc = device_private(dev);
+
+ di_reset(sc, false);
+
+ return true;
+}
+
+static void
+di_sense(struct scsipi_xfer *xs, uint8_t skey, uint8_t asc, uint8_t ascq)
+{
+ struct scsi_sense_data *sense = &xs->sense.scsi_sense;
+
+ xs->error = XS_SENSE;
+ sense->response_code = SSD_RCODE_CURRENT | SSD_RCODE_VALID;
+ sense->flags = skey;
+ sense->asc = asc;
+ sense->ascq = ascq;
+}
+
+static void
+di_request_error_sync(struct di_softc *sc, struct scsipi_xfer *xs)
+{
+ uint32_t imm;
+ int s;
+
+ s = splbio();
+ WR4(sc, DICMDBUF0, DI_CMD_REQUEST_ERROR);
+ WR4(sc, DICMDBUF1, 0);
+ WR4(sc, DICMDBUF2, 0);
+ WR4(sc, DILENGTH, 4);
+ WR4(sc, DICR, DICR_TSTART);
+ while (((RD4(sc, DISR) & DISR_TCINT)) == 0) {
+ delay(1);
+ }
+ imm = RD4(sc, DIMMBUF);
+ splx(s);
+
+ DPRINTF(sc->sc_dev, "ERR IMMBUF = 0x%08x\n", imm);
+ di_sense(xs, (imm >> 16) & 0xff, (imm >> 8) & 0xff, imm & 0xff);
+}
+
+static int
+di_transfer_error(struct di_softc *sc, struct scsipi_xfer *xs)
+{
+ if (xs == NULL) {
+ return 0;
+ }
+
+ DPRINTF(sc->sc_dev, "transfer error\n");
+
+ callout_stop(&sc->sc_timeout);
+ di_request_error_sync(sc, xs);
+ sc->sc_cur_xs = NULL;
+ scsipi_done(xs);
+
+ return 1;
+}
+
+static int
+di_transfer_complete(struct di_softc *sc, struct scsipi_xfer *xs)
+{
+ struct scsipi_generic *cmd;
+ struct scsipi_inquiry_data *inqbuf;
+ struct scsipi_read_cd_cap_data *cdcap;
+ struct di_response_inquiry *rinq;
+ uint32_t imm;
+ uint8_t *data;
+ char buf[5];
+
+ if (xs == NULL) {
+ DPRINTF(sc->sc_dev, "no active transfer\n");
+ return 0;
+ }
+
+ KASSERT(sc->sc_cur_xs == xs);
+
+ cmd = xs->cmd;
+
+ switch (cmd->opcode) {
+ case INQUIRY:
+ inqbuf = (struct scsipi_inquiry_data *)xs->data;
+ rinq = sc->sc_dma_addr;
+
+ bus_dmamap_sync(sc->sc_dmat, sc->sc_dma_map, 0, sizeof(*rinq),
+ BUS_DMASYNC_POSTREAD);
+
+ DPRINTF(sc->sc_dev, "revision_level %#x "
+ "device_code %#x "
+ "release_date %#x\n",
+ rinq->revision_level,
+ rinq->device_code,
+ rinq->release_date);
+
+ memset(inqbuf, 0, sizeof(*inqbuf));
+ inqbuf->device = T_CDROM;
+ inqbuf->dev_qual2 = SID_REMOVABLE;
+ strncpy(inqbuf->vendor, "NINTENDO", sizeof(inqbuf->vendor));
+ snprintf(inqbuf->product, sizeof(inqbuf->product), "%08x",
+ rinq->release_date);
+ snprintf(buf, sizeof(buf), "%04x", rinq->revision_level);
+ memcpy(inqbuf->revision, buf, sizeof(inqbuf->revision));
+ xs->resid = 0;
+ break;
+
+ case SCSI_TEST_UNIT_READY:
+ case SCSI_REQUEST_SENSE:
+ imm = RD4(sc, DIMMBUF);
+ DPRINTF(sc->sc_dev, "TUR IMMBUF = 0x%08x\n", imm);
+ switch ((imm >> 24) & 0xff) {
+ case 0:
+ di_sense(xs, (imm >> 16) & 0xff, (imm >> 8) & 0xff,
+ imm & 0xff);
+ break;
+ default:
+ di_sense(xs, SKEY_MEDIUM_ERROR, 0, 0);
+ break;
+ }
+ break;
+
+ case SCSI_READ_6_COMMAND:
+ case READ_10:
+ case GPCMD_REPORT_KEY:
+ bus_dmamap_sync(sc->sc_dmat, sc->sc_dma_map, 0, xs->datalen,
+ BUS_DMASYNC_POSTREAD);
+ memcpy(xs->data, sc->sc_dma_addr, xs->datalen);
+ xs->resid = 0;
+ break;
+
+ case GPCMD_READ_DVD_STRUCTURE:
+ bus_dmamap_sync(sc->sc_dmat, sc->sc_dma_map, 0, DVDBLOCKSIZE,
+ BUS_DMASYNC_POSTREAD);
+ memcpy(xs->data + 4, sc->sc_dma_addr, xs->datalen - 4);
+ xs->resid = 0;
+ break;
+
+ case READ_CD_CAPACITY:
+ cdcap = (struct scsipi_read_cd_cap_data *)xs->data;
+
+ bus_dmamap_sync(sc->sc_dmat, sc->sc_dma_map, 0, DVDBLOCKSIZE,
+ BUS_DMASYNC_POSTREAD);
+ data = sc->sc_dma_addr;
+ _lto4b(DVDBLOCKSIZE, cdcap->length);
+ memcpy(cdcap->addr, &data[8], sizeof(cdcap->addr));
+ break;
+ }
+
+ sc->sc_cur_xs = NULL;
+ scsipi_done(xs);
+
+ return 1;
+}
+
+static int
+di_intr(void *priv)
+{
+ struct di_softc *sc = priv;
+ uint32_t sr, cvr;
+ int ret = 0;
+
+ sr = RD4(sc, DISR);
+ cvr = RD4(sc, DICVR);
+
+ if ((sr & DISR_DEINT) != 0) {
+ ret |= di_transfer_error(sc, sc->sc_cur_xs);
+ } else if ((sr & DISR_TCINT) != 0) {
+ ret |= di_transfer_complete(sc, sc->sc_cur_xs);
+ }
+
+ if ((cvr & DICVR_CVRINT) != 0) {
+ DPRINTF(sc->sc_dev, "drive %s\n",
+ (cvr & DICVR_CVR) == 0 ? "closed" : "opened");
+ ret |= 1;
+ }
+
+ WR4(sc, DISR, sr);
+ WR4(sc, DICVR, cvr);
+
+ return ret;
+}
+
+static void
+di_timeout(void *priv)
+{
+ struct di_softc *sc = priv;
+ int s;
+
+ s = splbio();
+ if (sc->sc_cur_xs != NULL) {
+ struct scsipi_xfer *xs = sc->sc_cur_xs;
+
+ DPRINTF(sc->sc_dev, "command %#x timeout, DISR = %#x\n",
+ xs->cmd->opcode, RD4(sc, DISR));
+ xs->error = XS_TIMEOUT;
+ scsipi_done(xs);
+
+ sc->sc_cur_xs = NULL;
+ }
+ splx(s);
+}
+
+static void
+di_idle(void *priv)
+{
+ struct di_softc *sc = priv;
+
+ if ((RD4(sc, DICVR) & DICVR_CVR) != 0) {
+ /* Cover is opened, nothing to do. */
+ return;
+ }
+
+ di_reset(sc, false);
+}
+
+static void
+di_start_request(struct di_softc *sc, struct scsipi_xfer *xs)
+{
+ KASSERT(sc->sc_cur_xs == NULL);
+ sc->sc_cur_xs = xs;
+ if (xs->timeout != 0) {
+ callout_schedule(&sc->sc_timeout, mstohz(xs->timeout) + 1);
+ } else {
+ DPRINTF(sc->sc_dev, "WARNING: xfer with no timeout!\n");
+ callout_schedule(&sc->sc_timeout, mstohz(15000));
+ }
+}
+
+static void
+di_init_regs(struct di_softc *sc)
+{
+ WR4(sc, DISR, DISR_BRKINT |
+ DISR_TCINT | DISR_TCINTMASK |
+ DISR_DEINT | DISR_DEINTMASK);
+ WR4(sc, DICVR, DICVR_CVRINT | DICVR_CVRINTMASK);
+}
+
+static void
+di_reset(struct di_softc *sc, bool spinup)
+{
+ uint32_t val;
+ int s;
+
+ DPRINTF(sc->sc_dev, "reset spinup=%d\n", spinup);
+
+ s = splhigh();
+
+ if (spinup) {
+ out32(HW_GPIOB_OUT, in32(HW_GPIOB_OUT) & ~__BIT(GPIO_DI_SPIN));
+ } else {
+ out32(HW_GPIOB_OUT, in32(HW_GPIOB_OUT) | __BIT(GPIO_DI_SPIN));
+ }
+
+ val = in32(HW_RESETS);
+ out32(HW_RESETS, val & ~RSTB_IODI);
+ delay(12);
+ out32(HW_RESETS, val | RSTB_IODI);
+
+ WR4(sc, DISR, DISR_BRKINT |
+ DISR_TCINT | DISR_TCINTMASK |
+ DISR_DEINT | DISR_DEINTMASK);
+ WR4(sc, DICVR, DICVR_CVRINT | DICVR_CVRINTMASK);
+
+ splx(s);
+}
+
+static void
+di_stop_motor(struct di_softc *sc, struct scsipi_xfer *xs, bool eject)
+{
+ uint32_t cmdflags = 0;
+ int s;
+
+ if (eject) {
+ cmdflags |= 1 << 17;
+ }
+
+ s = splbio();
+ WR4(sc, DICMDBUF0, DI_CMD_STOP_MOTOR | cmdflags);
+ WR4(sc, DICMDBUF1, 0);
+ WR4(sc, DICMDBUF2, 0);
+ WR4(sc, DILENGTH, 4);
+ WR4(sc, DICR, DICR_TSTART);
+ di_start_request(sc, xs);
+ splx(s);
+}
+
+static void
+di_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, void *arg)
+{
+ struct di_softc *sc = device_private(chan->chan_adapter->adapt_dev);
+ struct scsipi_xfer *xs;
+ struct scsipi_generic *cmd;
+ struct scsipi_start_stop *ss;
+ struct scsi_prevent_allow_medium_removal *pamr;
+ uint32_t blkno;
+ int s;
+
+ if (req != ADAPTER_REQ_RUN_XFER) {
+ return;
+ }
+
+ callout_stop(&sc->sc_idle);
+
+ KASSERT(sc->sc_cur_xs == NULL);
+
+ xs = arg;
+ cmd = xs->cmd;
+
+ switch (cmd->opcode) {
+ case INQUIRY:
+ bus_dmamap_sync(sc->sc_dmat, sc->sc_dma_map,
+ 0, sizeof(struct di_response_inquiry),
+ BUS_DMASYNC_PREREAD);
+
+ s = splbio();
+ WR4(sc, DICMDBUF0, DI_CMD_INQUIRY);
+ WR4(sc, DICMDBUF1, 0);
+ WR4(sc, DILENGTH, sizeof(struct di_response_inquiry));
+ WR4(sc, DIMAR, sc->sc_dma_segs[0].ds_addr);
+ WR4(sc, DICR, DICR_TSTART | DICR_DMA);
+ di_start_request(sc, xs);
+ splx(s);
+ break;
+
+ case SCSI_TEST_UNIT_READY:
+ case SCSI_REQUEST_SENSE:
+ s = splbio();
+ WR4(sc, DICMDBUF0, DI_CMD_REQUEST_ERROR);
+ WR4(sc, DICMDBUF1, 0);
+ WR4(sc, DICMDBUF2, 0);
+ WR4(sc, DILENGTH, 4);
+ WR4(sc, DICR, DICR_TSTART);
+ di_start_request(sc, xs);
+ splx(s);
+ break;
+
+ case SCSI_READ_6_COMMAND:
+ case READ_10:
+ if (cmd->opcode == SCSI_READ_6_COMMAND) {
+ blkno = _3btol(((struct scsi_rw_6 *)cmd)->addr);
+ } else {
+ KASSERT(cmd->opcode == READ_10);
+ blkno = _4btol(((struct scsipi_rw_10 *)cmd)->addr);
+ }
+
+ if (xs->datalen == 0) {
+ xs->error = XS_DRIVER_STUFFUP;
+ scsipi_done(xs);
+ break;
+ }
+
+ bus_dmamap_sync(sc->sc_dmat, sc->sc_dma_map,
+ 0, xs->datalen, BUS_DMASYNC_PREREAD);
+
+ s = splbio();
+ WR4(sc, DICMDBUF0, DI_CMD_READ_DVD);
+ WR4(sc, DICMDBUF1, blkno);
+ WR4(sc, DICMDBUF2, howmany(xs->datalen, DVDBLOCKSIZE));
+ WR4(sc, DILENGTH, roundup(xs->datalen, DVDBLOCKSIZE));
+ WR4(sc, DIMAR, sc->sc_dma_segs[0].ds_addr);
+ WR4(sc, DICR, DICR_TSTART | DICR_DMA);
+ di_start_request(sc, xs);
+ splx(s);
+ break;
+
+ case GPCMD_READ_DVD_STRUCTURE:
+ if (xs->datalen == 0) {
+ DPRINTF(sc->sc_dev, "zero datalen\n");
+ xs->error = XS_DRIVER_STUFFUP;
+ scsipi_done(xs);
+ break;
+ }
+
+ bus_dmamap_sync(sc->sc_dmat, sc->sc_dma_map,
+ 0, xs->datalen, BUS_DMASYNC_PREREAD);
+
+ s = splbio();
+ WR4(sc, DICMDBUF0, DI_CMD_READ_DVD_STRUCT(cmd->bytes[6]));
+ WR4(sc, DICMDBUF1, 0);
+ WR4(sc, DICMDBUF2, 0);
+ WR4(sc, DILENGTH, roundup(xs->datalen, DVDBLOCKSIZE));
+ WR4(sc, DIMAR, sc->sc_dma_segs[0].ds_addr);
+ WR4(sc, DICR, DICR_TSTART | DICR_DMA);
+ di_start_request(sc, xs);
+ splx(s);
+ break;
+
+ case GPCMD_REPORT_KEY:
+ if (xs->datalen == 0) {
+ DPRINTF(sc->sc_dev, "zero datalen\n");
+ xs->error = XS_DRIVER_STUFFUP;
+ scsipi_done(xs);
+ break;
+ }
+
+ bus_dmamap_sync(sc->sc_dmat, sc->sc_dma_map,
+ 0, xs->datalen, BUS_DMASYNC_PREREAD);
+
+ s = splbio();
+ WR4(sc, DICMDBUF0, DI_CMD_REPORT_KEY(cmd->bytes[9] >> 2));
+ WR4(sc, DICMDBUF1, _4btol(&cmd->bytes[1]));
+ WR4(sc, DICMDBUF2, 0);
+ WR4(sc, DILENGTH, roundup(xs->datalen, 0x20));
+ WR4(sc, DIMAR, sc->sc_dma_segs[0].ds_addr);
+ WR4(sc, DICR, DICR_TSTART | DICR_DMA);
+ di_start_request(sc, xs);
+ splx(s);
+ break;
+
+ case READ_CD_CAPACITY:
+ bus_dmamap_sync(sc->sc_dmat, sc->sc_dma_map,
+ 0, DVDBLOCKSIZE, BUS_DMASYNC_PREREAD);
+
+ s = splbio();
+ WR4(sc, DICMDBUF0, DI_CMD_READ_DVD_STRUCT(DVD_STRUCT_PHYSICAL));
+ WR4(sc, DICMDBUF1, 0);
+ WR4(sc, DICMDBUF2, 0);
+ WR4(sc, DILENGTH, DVDBLOCKSIZE);
+ WR4(sc, DIMAR, sc->sc_dma_segs[0].ds_addr);
+ WR4(sc, DICR, DICR_TSTART | DICR_DMA);
+ di_start_request(sc, xs);
+ splx(s);
+ break;
+
+ case GET_CONFIGURATION:
+ memset(xs->data, 0, sizeof(struct scsipi_get_conf_data));
+ xs->resid = 0;
+ scsipi_done(xs);
+ break;
+
+ case READ_TOC:
+ memset(xs->data, 0, sizeof(struct scsipi_toc_header));
+ xs->resid = 0;
+ scsipi_done(xs);
+ break;
+
+ case READ_TRACKINFO:
+ case READ_DISCINFO:
+ di_sense(xs, SKEY_ILLEGAL_REQUEST, 0, 0);
+ scsipi_done(xs);
+ break;
+
+ case START_STOP:
+ ss = (struct scsipi_start_stop *)cmd;
+ if (ss->how == SSS_START) {
+ di_reset(sc, true);
+ scsipi_done(xs);
+ } else {
+ di_stop_motor(sc, xs, (ss->how & SSS_LOEJ) != 0);
+ }
+ break;
+
+ case SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL:
+ pamr = (struct scsi_prevent_allow_medium_removal *)cmd;
+ sc->sc_pamr = pamr->how;
+ scsipi_done(xs);
+ break;
+
+ default:
+ DPRINTF(sc->sc_dev, "unsupported opcode %#x\n", cmd->opcode);
+ scsipi_done(xs);
+ }
+
+ if (!sc->sc_pamr) {
+ callout_schedule(&sc->sc_idle, mstohz(DI_IDLE_TIMEOUT_MS));
+ }
+}
