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+/**
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+ * Copyright (C) 2013 Michael McMaster <michael@codesrc.com>
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+ * Copyright (C) 2014 Doug Brown <doug@downtowndougbrown.com>
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+ * Copyright (C) 2019 Landon Rodgers <g.landon.rodgers@gmail.com>
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+ * ZuluSCSI™ - Copyright (c) 2023 Rabbit Hole Computing™
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+ *
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+ * ZuluSCSI™ firmware is licensed under the GPL version 3 or any later version.
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+ *
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+ * https://www.gnu.org/licenses/gpl-3.0.html
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+ * ----
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+ * This program is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
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+**/
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+
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+#include <stdint.h>
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+#include <string.h>
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+
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+#ifdef ENABLE_AUDIO_OUTPUT
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+#include "ZuluSCSI_audio.h"
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+#endif
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+#include "ZuluSCSI_cdrom.h"
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+#include "ZuluSCSI_log.h"
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+
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+extern "C" {
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+#include "ZuluSCSI_mode.h"
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+}
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+
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+static const uint8_t CDROMCDParametersPage[] =
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+{
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+0x0D, // page code
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+0x06, // page length
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+0x00, // reserved
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+0x0D, // reserved, inactivity time 8 min
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+0x00, 0x3C, // 60 seconds per MSF M unit
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+0x00, 0x4B // 75 frames per MSF S unit
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+};
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+
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+#ifdef ENABLE_AUDIO_OUTPUT
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+static const uint8_t CDROMAudioControlParametersPage[] =
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+{
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+0x0E, // page code
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+0x0E, // page length
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+0x04, // 'Immed' bit set, 'SOTC' bit not set
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+0x00, // reserved
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+0x00, // reserved
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+0x80, // 1 LBAs/sec multip
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+0x00, 0x4B, // 75 LBAs/sec
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+0x01, 0xFF, // output port 0 active, max volume
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+0x02, 0xFF, // output port 1 active, max volume
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+0x00, 0x00, // output port 2 inactive
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+0x00, 0x00 // output port 3 inactive
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+};
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+#endif
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+
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+static void pageIn(int pc, int dataIdx, const uint8_t* pageData, int pageLen)
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+{
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+ memcpy(&scsiDev.data[dataIdx], pageData, pageLen);
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+
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+ if (pc == 0x01) // Mask out (un)changable values
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+ {
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+ memset(&scsiDev.data[dataIdx+2], 0, pageLen - 2);
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+ }
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+}
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+
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+extern "C"
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+int modeSenseCDDevicePage(int pc, int idx, int pageCode, int* pageFound)
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+{
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+ if ((scsiDev.target->cfg->deviceType == S2S_CFG_OPTICAL)
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+ && (pageCode == 0x0D || pageCode == 0x3F))
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+ {
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+ *pageFound = 1;
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+ pageIn(
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+ pc,
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+ idx,
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+ CDROMCDParametersPage,
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+ sizeof(CDROMCDParametersPage));
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+ return sizeof(CDROMCDParametersPage);
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+ }
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+ else
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+ {
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+ return 0;
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+ }
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+}
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+
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+extern "C"
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+int modeSenseCDAudioControlPage(int pc, int idx, int pageCode, int* pageFound)
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+{
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+#ifdef ENABLE_AUDIO_OUTPUT
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+ if ((scsiDev.target->cfg->deviceType == S2S_CFG_OPTICAL)
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+ && (pageCode == 0x0E || pageCode == 0x3F))
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+ {
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+ *pageFound = 1;
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+ pageIn(
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+ pc,
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+ idx,
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+ CDROMAudioControlParametersPage,
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+ sizeof(CDROMAudioControlParametersPage));
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+ if (pc == 0x00)
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+ {
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+ // report current volume level
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+ uint16_t vol = audio_get_volume(scsiDev.target->targetId);
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+ scsiDev.data[idx+9] = vol & 0xFF;
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+ scsiDev.data[idx+11] = vol >> 8;
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+ }
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+ else if (pc == 0x01)
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+ {
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+ // report bits that can be set
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+ scsiDev.data[idx+9] = 0xFF;
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+ scsiDev.data[idx+11] = 0xFF;
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+ }
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+ else
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+ {
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+ // report defaults for 0x02
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+ // also report same for 0x03, though we are actually supposed
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+ // to terminate with CHECK CONDITION and SAVING PARAMETERS NOT SUPPORTED
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+ scsiDev.data[idx+9] = DEFAULT_VOLUME_LEVEL & 0xFF;
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+ scsiDev.data[idx+11] = DEFAULT_VOLUME_LEVEL >> 8;
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+ }
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+ return sizeof(CDROMAudioControlParametersPage);
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+ }
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+ else
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+ {
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+ return 0;
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+ }
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+#else
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+ return 0;
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+#endif
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+}
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+
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+extern "C"
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+int modeSelectCDAudioControlPage(int pageLen, int idx)
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+{
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+#ifdef ENABLE_AUDIO_OUTPUT
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+ if (scsiDev.target->cfg->deviceType == S2S_CFG_OPTICAL)
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+ {
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+ if (pageLen != 0x0E) return 0;
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+ uint16_t vol = (scsiDev.data[idx+11] << 8) + scsiDev.data[idx+9];
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+ dbgmsg("------ CD audio control page volume (", vol, ")");
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+ audio_set_volume(scsiDev.target->targetId, vol);
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+ return 1;
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+ }
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+ else
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+ {
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+ return 0;
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+ }
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+#else
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+ return 0;
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+#endif
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+}
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Alex Perez