diff options
Diffstat (limited to 'hw/slavio_serial.c')
| -rw-r--r-- | hw/slavio_serial.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/hw/slavio_serial.c b/hw/slavio_serial.c index 6705d4429a..42d233ee69 100644 --- a/hw/slavio_serial.c +++ b/hw/slavio_serial.c @@ -100,6 +100,7 @@ typedef struct ChannelState { SERIOQueue queue; CharDriverState *chr; int e0_mode, led_mode, caps_lock_mode, num_lock_mode; + int disabled; } ChannelState; struct SerialState { @@ -193,7 +194,10 @@ static void slavio_serial_reset_chn(ChannelState *s) s->wregs[11] = 8; s->wregs[14] = 0x30; s->wregs[15] = 0xf8; - s->rregs[0] = 0x44; + if (s->disabled) + s->rregs[0] = 0x7c; + else + s->rregs[0] = 0x44; s->rregs[1] = 6; s->rx = s->tx = 0; @@ -437,7 +441,7 @@ static void slavio_serial_mem_writeb(void *opaque, target_phys_addr_t addr, uint if (s->wregs[5] & 8) { // tx enabled if (s->chr) qemu_chr_write(s->chr, &s->tx, 1); - else if (s->type == kbd) { + else if (s->type == kbd && !s->disabled) { handle_kbd_command(s, val); } } @@ -611,6 +615,8 @@ SerialState *slavio_serial_init(target_phys_addr_t base, qemu_irq irq, s->chn[0].chr = chr1; s->chn[1].chr = chr2; + s->chn[0].disabled = 0; + s->chn[1].disabled = 0; for (i = 0; i < 2; i++) { s->chn[i].irq = irq; @@ -765,7 +771,8 @@ static void sunmouse_event(void *opaque, put_queue(s, 0); } -void slavio_serial_ms_kbd_init(target_phys_addr_t base, qemu_irq irq) +void slavio_serial_ms_kbd_init(target_phys_addr_t base, qemu_irq irq, + int disabled) { int slavio_serial_io_memory, i; SerialState *s; @@ -782,6 +789,8 @@ void slavio_serial_ms_kbd_init(target_phys_addr_t base, qemu_irq irq) s->chn[1].otherchn = &s->chn[0]; s->chn[0].type = mouse; s->chn[1].type = kbd; + s->chn[0].disabled = disabled; + s->chn[1].disabled = disabled; slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s); cpu_register_physical_memory(base, SERIAL_SIZE, slavio_serial_io_memory); |