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Added Aztech Sound Galaxy Pro 16 AB (Washington, AZ2316A) and Aztech Sound

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Galaxy Nova 16 Extra (Clinton, AZ1605) emulation. Patch from EluanCM.
Clinton is currently marked as DEVICE_NOT_WORKING due to issues with DOS drivers.
This commit is contained in:
SarahW 2020-03-11 21:21:09 +00:00
commit 1181b13c2d
17 changed files with 2051 additions and 179 deletions
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38
src/sound_mpu401_uart.c
View file

@ -1,5 +1,6 @@
#include "ibm.h"
#include "io.h"
#include "pic.h"
#include "plat-midi.h"
#include "sound_mpu401_uart.h"
@ -9,6 +10,14 @@ enum
STATUS_INPUT_NOT_READY = 0x80
};
static void mpu401_uart_raise_irq(void *p)
{
mpu401_uart_t *mpu = (mpu401_uart_t *)p;
if (mpu->irq != -1)
picint(1 << mpu->irq);
}
static void mpu401_uart_write(uint16_t addr, uint8_t val, void *p)
{
mpu401_uart_t *mpu = (mpu401_uart_t *)p;
@ -18,15 +27,20 @@ static void mpu401_uart_write(uint16_t addr, uint8_t val, void *p)
switch (val)
{
case 0xff: /*Reset*/
// From Roland: "An ACK will not be sent back upon sending a SYSTEM RESET to leave the UART MODE ($3F)."
// But actual behaviour is weird. For example, the MPU401 port test in the AZT1605 drivers for Windows NT
// want this to return an Ack but the IRQ test in the same driver wants this to raise no interrupts!
mpu->rx_data = 0xfe; /*Acknowledge*/
mpu->status = 0;
mpu->status = STATUS_OUTPUT_NOT_READY;
mpu->uart_mode = 0;
//mpu401_uart_raise_irq(p);
break;
case 0x3f: /*Enter UART mode*/
mpu->rx_data = 0xfe; /*Acknowledge*/
mpu->status = 0;
mpu->status = STATUS_OUTPUT_NOT_READY;
mpu->uart_mode = 1;
mpu401_uart_raise_irq(p);
break;
}
return;
@ -45,14 +59,30 @@ static uint8_t mpu401_uart_read(uint16_t addr, void *p)
return mpu->status;
/*Data*/
mpu->status |= STATUS_INPUT_NOT_READY;
mpu->status = STATUS_INPUT_NOT_READY;
return mpu->rx_data;
}
void mpu401_uart_init(mpu401_uart_t *mpu, uint16_t addr)
void mpu401_uart_init(mpu401_uart_t *mpu, uint16_t addr, int irq)
{
mpu->status = STATUS_INPUT_NOT_READY;
mpu->uart_mode = 0;
mpu->addr = addr;
mpu->irq = irq;
io_sethandler(addr, 0x0002, mpu401_uart_read, NULL, NULL, mpu401_uart_write, NULL, NULL, mpu);
}
void mpu401_uart_update_addr(mpu401_uart_t *mpu, uint16_t addr)
{
io_removehandler(mpu->addr, 0x0002, mpu401_uart_read, NULL, NULL, mpu401_uart_write, NULL, NULL, mpu);
mpu->addr = addr;
if (addr != 0)
io_sethandler(addr, 0x0002, mpu401_uart_read, NULL, NULL, mpu401_uart_write, NULL, NULL, mpu);
}
void mpu401_uart_update_irq(mpu401_uart_t *mpu, int irq)
{
mpu->irq = irq;
}