From 9983f6e12e11c6519c9626f4c63df53edefab5f2 Mon Sep 17 00:00:00 2001 From: Mark Cave-Ayland Date: Wed, 4 Oct 2023 09:37:55 +0100 Subject: [PATCH] q800: add Apple Sound Chip (ASC) audio to machine The Quadra 800 has the enhanced ASC (EASC) audio chip which supports both the legacy IRQ routing through VIA2 and also "A/UX" mode routing direct to the CPU. Co-developed-by: Laurent Vivier Signed-off-by: Mark Cave-Ayland Message-ID: <20231004083806.757242-10-mark.cave-ayland@ilande.co.uk> Signed-off-by: Laurent Vivier --- hw/m68k/q800-glue.c | 11 ++++++++++- hw/m68k/q800.c | 21 +++++++++++++++++++++ include/hw/m68k/q800-glue.h | 4 +++- include/hw/m68k/q800.h | 2 ++ 4 files changed, 36 insertions(+), 2 deletions(-) diff --git a/hw/m68k/q800-glue.c b/hw/m68k/q800-glue.c index 710a5c331e..f413b1599a 100644 --- a/hw/m68k/q800-glue.c +++ b/hw/m68k/q800-glue.c @@ -97,6 +97,11 @@ static void GLUE_set_irq(void *opaque, int irq, int level) irq = 6; break; + case GLUE_IRQ_IN_ASC: + /* Route to VIA2 instead, negative edge-triggered */ + qemu_set_irq(s->irqs[GLUE_IRQ_ASC], !level); + return; + default: g_assert_not_reached(); } @@ -123,6 +128,10 @@ static void GLUE_set_irq(void *opaque, int irq, int level) irq = 6; break; + case GLUE_IRQ_IN_ASC: + irq = 4; + break; + default: g_assert_not_reached(); } @@ -214,7 +223,7 @@ static void glue_init(Object *obj) qdev_init_gpio_in(dev, GLUE_set_irq, 8); qdev_init_gpio_in_named(dev, glue_auxmode_set_irq, "auxmode", 1); - qdev_init_gpio_out(dev, s->irqs, 1); + qdev_init_gpio_out(dev, s->irqs, 2); /* NMI release timer */ s->nmi_release = timer_new_ms(QEMU_CLOCK_VIRTUAL, glue_nmi_release, s); diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c index 3209309173..249fedde7a 100644 --- a/hw/m68k/q800.c +++ b/hw/m68k/q800.c @@ -43,6 +43,7 @@ #include "hw/misc/djmemc.h" #include "hw/misc/iosb.h" #include "hw/input/adb.h" +#include "hw/audio/asc.h" #include "hw/nubus/mac-nubus-bridge.h" #include "hw/display/macfb.h" #include "hw/block/swim.h" @@ -480,6 +481,25 @@ static void q800_machine_init(MachineState *machine) scsi_bus_legacy_handle_cmdline(&esp->bus); + /* Apple Sound Chip */ + + object_initialize_child(OBJECT(machine), "asc", &m->asc, TYPE_ASC); + qdev_prop_set_uint8(DEVICE(&m->asc), "asctype", ASC_TYPE_EASC); + if (machine->audiodev) { + qdev_prop_set_string(DEVICE(&m->asc), "audiodev", machine->audiodev); + } + sysbus = SYS_BUS_DEVICE(&m->asc); + sysbus_realize_and_unref(sysbus, &error_fatal); + memory_region_add_subregion(&m->macio, ASC_BASE - IO_BASE, + sysbus_mmio_get_region(sysbus, 0)); + sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(DEVICE(&m->glue), + GLUE_IRQ_IN_ASC)); + + /* Wire ASC IRQ via GLUE for use in classic mode */ + qdev_connect_gpio_out(DEVICE(&m->glue), GLUE_IRQ_ASC, + qdev_get_gpio_in(DEVICE(&m->via2), + VIA2_IRQ_ASC_BIT)); + /* SWIM floppy controller */ object_initialize_child(OBJECT(machine), "swim", &m->swim, @@ -688,6 +708,7 @@ static void q800_machine_class_init(ObjectClass *oc, void *data) mc->max_cpus = 1; mc->block_default_type = IF_SCSI; mc->default_ram_id = "m68k_mac.ram"; + machine_add_audiodev_property(mc); compat_props_add(mc->compat_props, hw_compat_q800, hw_compat_q800_len); } diff --git a/include/hw/m68k/q800-glue.h b/include/hw/m68k/q800-glue.h index a35efc1c53..ceb916d16c 100644 --- a/include/hw/m68k/q800-glue.h +++ b/include/hw/m68k/q800-glue.h @@ -35,7 +35,7 @@ struct GLUEState { M68kCPU *cpu; uint8_t ipr; uint8_t auxmode; - qemu_irq irqs[1]; + qemu_irq irqs[2]; QEMUTimer *nmi_release; }; @@ -44,7 +44,9 @@ struct GLUEState { #define GLUE_IRQ_IN_SONIC 2 #define GLUE_IRQ_IN_ESCC 3 #define GLUE_IRQ_IN_NMI 4 +#define GLUE_IRQ_IN_ASC 5 #define GLUE_IRQ_NUBUS_9 0 +#define GLUE_IRQ_ASC 1 #endif diff --git a/include/hw/m68k/q800.h b/include/hw/m68k/q800.h index 04e4e0bce3..790cf433f3 100644 --- a/include/hw/m68k/q800.h +++ b/include/hw/m68k/q800.h @@ -38,6 +38,7 @@ #include "hw/display/macfb.h" #include "hw/misc/djmemc.h" #include "hw/misc/iosb.h" +#include "hw/audio/asc.h" /* * The main Q800 machine @@ -60,6 +61,7 @@ struct Q800MachineState { MacfbNubusState macfb; DJMEMCState djmemc; IOSBState iosb; + ASCState asc; MemoryRegion ramio; MemoryRegion macio; MemoryRegion macio_alias; -- 2.11.4.GIT