/*
* QEMU Sparc SLAVIO serial port emulation
- *
+ *
* Copyright (c) 2003-2005 Fabrice Bellard
- *
+ *
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* This is the serial port, mouse and keyboard part of chip STP2001
* (Slave I/O), also produced as NCR89C105. See
* http://www.ibiblio.org/pub/historic-linux/early-ports/Sparc/NCR/NCR89C105.txt
- *
+ *
* The serial ports implement full AMD AM8530 or Zilog Z8530 chips,
* mouse and keyboard ports don't implement all functions and they are
* only asynchronous. There is no DMA.
uint8_t rx, tx, wregs[16], rregs[16];
SERIOQueue queue;
CharDriverState *chr;
+ int e0_mode, led_mode, caps_lock_mode, num_lock_mode;
} ChannelState;
struct SerialState {
};
#define SERIAL_MAXADDR 7
+#define SERIAL_SIZE (SERIAL_MAXADDR + 1)
static void handle_kbd_command(ChannelState *s, int val);
static int serial_can_receive(void *opaque);
ChannelState *s = opaque;
SERIOQueue *q = &s->queue;
int val;
-
+
if (q->count == 0) {
- return 0;
+ return 0;
} else {
val = q->data[q->rptr];
if (++q->rptr == SERIO_QUEUE_SIZE)
}
SER_DPRINTF("channel %c get 0x%02x\n", CHN_C(s), val);
if (q->count > 0)
- serial_receive_byte(s, 0);
+ serial_receive_byte(s, 0);
return val;
}
static int slavio_serial_update_irq_chn(ChannelState *s)
{
if ((s->wregs[1] & 1) && // interrupts enabled
- (((s->wregs[1] & 2) && s->txint == 1) || // tx ints enabled, pending
- ((((s->wregs[1] & 0x18) == 8) || ((s->wregs[1] & 0x18) == 0x10)) &&
- s->rxint == 1) || // rx ints enabled, pending
- ((s->wregs[15] & 0x80) && (s->rregs[0] & 0x80)))) { // break int e&p
+ (((s->wregs[1] & 2) && s->txint == 1) || // tx ints enabled, pending
+ ((((s->wregs[1] & 0x18) == 8) || ((s->wregs[1] & 0x18) == 0x10)) &&
+ s->rxint == 1) || // rx ints enabled, pending
+ ((s->wregs[15] & 0x80) && (s->rregs[0] & 0x80)))) { // break int e&p
return 1;
}
return 0;
int i;
s->reg = 0;
- for (i = 0; i < SERIAL_MAXADDR; i++) {
- s->rregs[i] = 0;
- s->wregs[i] = 0;
+ for (i = 0; i < SERIAL_SIZE; i++) {
+ s->rregs[i] = 0;
+ s->wregs[i] = 0;
}
s->wregs[4] = 4;
s->wregs[9] = 0xc0;
s->rx = s->tx = 0;
s->rxint = s->txint = 0;
s->rxint_under_svc = s->txint_under_svc = 0;
+ s->e0_mode = s->led_mode = s->caps_lock_mode = s->num_lock_mode = 0;
clear_queue(s);
}
}
if (s->txint)
set_txint(s);
- else
- s->rregs[2] = 6;
slavio_serial_update_irq(s);
}
s->otherchn->rregs[2] = 0x30;
else
s->otherchn->rregs[2] = 0x0c;
- s->rregs[3] |= 0x20;
} else {
if (s->wregs[9] & 0x10)
s->rregs[2] = 0x20;
else
s->rregs[2] = 0x04;
- s->otherchn->rregs[3] |= 4;
}
- slavio_serial_update_irq(s);
}
+ if (s->chn == chn_a)
+ s->rregs[3] |= 0x20;
+ else
+ s->otherchn->rregs[3] |= 4;
+ slavio_serial_update_irq(s);
}
static inline void clr_txint(ChannelState *s)
{
s->txint = 0;
s->txint_under_svc = 0;
- if (s->chn == chn_a)
+ if (s->chn == chn_a) {
+ if (s->wregs[9] & 0x10)
+ s->otherchn->rregs[2] = 0x60;
+ else
+ s->otherchn->rregs[2] = 0x06;
s->rregs[3] &= ~0x10;
- else
+ } else {
+ if (s->wregs[9] & 0x10)
+ s->rregs[2] = 0x60;
+ else
+ s->rregs[2] = 0x06;
s->otherchn->rregs[3] &= ~2;
+ }
if (s->rxint)
set_rxint(s);
- else
- s->rregs[2] = 6;
slavio_serial_update_irq(s);
}
s->txint = 1;
if (!s->rxint_under_svc) {
s->txint_under_svc = 1;
- if (s->chn == chn_a)
- s->rregs[3] |= 0x10;
- else
- s->otherchn->rregs[3] |= 2;
- s->rregs[2] = 0;
- slavio_serial_update_irq(s);
+ if (s->chn == chn_a) {
+ if (s->wregs[9] & 0x10)
+ s->otherchn->rregs[2] = 0x10;
+ else
+ s->otherchn->rregs[2] = 0x08;
+ } else {
+ s->rregs[2] = 0;
+ }
}
+ if (s->chn == chn_a)
+ s->rregs[3] |= 0x10;
+ else
+ s->otherchn->rregs[3] |= 2;
+ slavio_serial_update_irq(s);
}
static void slavio_serial_update_parameters(ChannelState *s)
static void slavio_serial_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
{
- SerialState *ser = opaque;
+ SerialState *serial = opaque;
ChannelState *s;
uint32_t saddr;
int newreg, channel;
val &= 0xff;
saddr = (addr & 3) >> 1;
channel = (addr & SERIAL_MAXADDR) >> 2;
- s = &ser->chn[channel];
+ s = &serial->chn[channel];
switch (saddr) {
case 0:
- SER_DPRINTF("Write channel %c, reg[%d] = %2.2x\n", CHN_C(s), s->reg, val & 0xff);
- newreg = 0;
- switch (s->reg) {
- case 0:
- newreg = val & 7;
- val &= 0x38;
- switch (val) {
- case 8:
- newreg |= 0x8;
- break;
- case 0x28:
+ SER_DPRINTF("Write channel %c, reg[%d] = %2.2x\n", CHN_C(s), s->reg, val & 0xff);
+ newreg = 0;
+ switch (s->reg) {
+ case 0:
+ newreg = val & 7;
+ val &= 0x38;
+ switch (val) {
+ case 8:
+ newreg |= 0x8;
+ break;
+ case 0x28:
clr_txint(s);
- break;
- case 0x38:
+ break;
+ case 0x38:
if (s->rxint_under_svc)
clr_rxint(s);
else if (s->txint_under_svc)
clr_txint(s);
- break;
- default:
- break;
- }
- break;
+ break;
+ default:
+ break;
+ }
+ break;
case 1 ... 3:
case 6 ... 8:
case 10 ... 11:
case 14 ... 15:
- s->wregs[s->reg] = val;
- break;
+ s->wregs[s->reg] = val;
+ break;
case 4:
case 5:
case 12:
case 13:
- s->wregs[s->reg] = val;
+ s->wregs[s->reg] = val;
slavio_serial_update_parameters(s);
- break;
- case 9:
- switch (val & 0xc0) {
- case 0:
- default:
- break;
- case 0x40:
- slavio_serial_reset_chn(&ser->chn[1]);
- return;
- case 0x80:
- slavio_serial_reset_chn(&ser->chn[0]);
- return;
- case 0xc0:
- slavio_serial_reset(ser);
- return;
- }
- break;
- default:
- break;
- }
- if (s->reg == 0)
- s->reg = newreg;
- else
- s->reg = 0;
- break;
+ break;
+ case 9:
+ switch (val & 0xc0) {
+ case 0:
+ default:
+ break;
+ case 0x40:
+ slavio_serial_reset_chn(&serial->chn[1]);
+ return;
+ case 0x80:
+ slavio_serial_reset_chn(&serial->chn[0]);
+ return;
+ case 0xc0:
+ slavio_serial_reset(serial);
+ return;
+ }
+ break;
+ default:
+ break;
+ }
+ if (s->reg == 0)
+ s->reg = newreg;
+ else
+ s->reg = 0;
+ break;
case 1:
- SER_DPRINTF("Write channel %c, ch %d\n", CHN_C(s), val);
- if (s->wregs[5] & 8) { // tx enabled
- s->tx = val;
- if (s->chr)
- qemu_chr_write(s->chr, &s->tx, 1);
- else if (s->type == kbd) {
- handle_kbd_command(s, val);
- }
- s->rregs[0] |= 4; // Tx buffer empty
- s->rregs[1] |= 1; // All sent
- set_txint(s);
- }
- break;
+ SER_DPRINTF("Write channel %c, ch %d\n", CHN_C(s), val);
+ s->tx = val;
+ if (s->wregs[5] & 8) { // tx enabled
+ if (s->chr)
+ qemu_chr_write(s->chr, &s->tx, 1);
+ else if (s->type == kbd) {
+ handle_kbd_command(s, val);
+ }
+ }
+ s->rregs[0] |= 4; // Tx buffer empty
+ s->rregs[1] |= 1; // All sent
+ set_txint(s);
+ break;
default:
- break;
+ break;
}
}
static uint32_t slavio_serial_mem_readb(void *opaque, target_phys_addr_t addr)
{
- SerialState *ser = opaque;
+ SerialState *serial = opaque;
ChannelState *s;
uint32_t saddr;
uint32_t ret;
saddr = (addr & 3) >> 1;
channel = (addr & SERIAL_MAXADDR) >> 2;
- s = &ser->chn[channel];
+ s = &serial->chn[channel];
switch (saddr) {
case 0:
- SER_DPRINTF("Read channel %c, reg[%d] = %2.2x\n", CHN_C(s), s->reg, s->rregs[s->reg]);
- ret = s->rregs[s->reg];
- s->reg = 0;
- return ret;
+ SER_DPRINTF("Read channel %c, reg[%d] = %2.2x\n", CHN_C(s), s->reg, s->rregs[s->reg]);
+ ret = s->rregs[s->reg];
+ s->reg = 0;
+ return ret;
case 1:
- s->rregs[0] &= ~1;
+ s->rregs[0] &= ~1;
clr_rxint(s);
- if (s->type == kbd || s->type == mouse)
- ret = get_queue(s);
- else
- ret = s->rx;
- SER_DPRINTF("Read channel %c, ch %d\n", CHN_C(s), ret);
- return ret;
+ if (s->type == kbd || s->type == mouse)
+ ret = get_queue(s);
+ else
+ ret = s->rx;
+ SER_DPRINTF("Read channel %c, ch %d\n", CHN_C(s), ret);
+ return ret;
default:
- break;
+ break;
}
return 0;
}
int ret;
if (((s->wregs[3] & 1) == 0) // Rx not enabled
- || ((s->rregs[0] & 1) == 1)) // char already available
- ret = 0;
+ || ((s->rregs[0] & 1) == 1)) // char already available
+ ret = 0;
else
- ret = 1;
+ ret = 1;
//SER_DPRINTF("channel %c can receive %d\n", CHN_C(s), ret);
return ret;
}
ret = slavio_serial_load_chn(f, &s->chn[0], version_id);
if (ret != 0)
- return ret;
+ return ret;
ret = slavio_serial_load_chn(f, &s->chn[1], version_id);
return ret;
}
-SerialState *slavio_serial_init(int base, qemu_irq irq, CharDriverState *chr1,
- CharDriverState *chr2)
+SerialState *slavio_serial_init(target_phys_addr_t base, qemu_irq irq,
+ CharDriverState *chr1, CharDriverState *chr2)
{
int slavio_serial_io_memory, i;
SerialState *s;
return NULL;
slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
- cpu_register_physical_memory(base, SERIAL_MAXADDR, slavio_serial_io_memory);
+ cpu_register_physical_memory(base, SERIAL_SIZE, slavio_serial_io_memory);
s->chn[0].chr = chr1;
s->chn[1].chr = chr2;
for (i = 0; i < 2; i++) {
- s->chn[i].irq = irq;
- s->chn[i].chn = 1 - i;
- s->chn[i].type = ser;
- if (s->chn[i].chr) {
- qemu_chr_add_handlers(s->chn[i].chr, serial_can_receive,
+ s->chn[i].irq = irq;
+ s->chn[i].chn = 1 - i;
+ s->chn[i].type = ser;
+ if (s->chn[i].chr) {
+ qemu_chr_add_handlers(s->chn[i].chr, serial_can_receive,
serial_receive1, serial_event, &s->chn[i]);
- }
+ }
}
s->chn[0].otherchn = &s->chn[1];
s->chn[1].otherchn = &s->chn[0];
0, 45, 2, 4, 48, 0, 0, 21, 0, 0, 0, 0, 0, 120, 122, 67,
};
+static const uint8_t e0_keycodes[128] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 90, 76, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 109, 0, 0, 13, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 68, 69, 70, 0, 91, 0, 93, 0, 112,
+ 113, 114, 94, 50, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+
static void sunkbd_event(void *opaque, int ch)
{
ChannelState *s = opaque;
int release = ch & 0x80;
- ch = keycodes[ch & 0x7f];
- KBD_DPRINTF("Keycode %d (%s)\n", ch, release? "release" : "press");
+ KBD_DPRINTF("Untranslated keycode %2.2x (%s)\n", ch, release? "release" : "press");
+ switch (ch) {
+ case 58: // Caps lock press
+ s->caps_lock_mode ^= 1;
+ if (s->caps_lock_mode == 2)
+ return; // Drop second press
+ break;
+ case 69: // Num lock press
+ s->num_lock_mode ^= 1;
+ if (s->num_lock_mode == 2)
+ return; // Drop second press
+ break;
+ case 186: // Caps lock release
+ s->caps_lock_mode ^= 2;
+ if (s->caps_lock_mode == 3)
+ return; // Drop first release
+ break;
+ case 197: // Num lock release
+ s->num_lock_mode ^= 2;
+ if (s->num_lock_mode == 3)
+ return; // Drop first release
+ break;
+ case 0xe0:
+ s->e0_mode = 1;
+ return;
+ default:
+ break;
+ }
+ if (s->e0_mode) {
+ s->e0_mode = 0;
+ ch = e0_keycodes[ch & 0x7f];
+ } else {
+ ch = keycodes[ch & 0x7f];
+ }
+ KBD_DPRINTF("Translated keycode %2.2x\n", ch);
put_queue(s, ch | release);
}
static void handle_kbd_command(ChannelState *s, int val)
{
KBD_DPRINTF("Command %d\n", val);
+ if (s->led_mode) { // Ignore led byte
+ s->led_mode = 0;
+ return;
+ }
switch (val) {
case 1: // Reset, return type code
clear_queue(s);
- put_queue(s, 0xff);
- put_queue(s, 4); // Type 4
- break;
+ put_queue(s, 0xff);
+ put_queue(s, 4); // Type 4
+ put_queue(s, 0x7f);
+ break;
+ case 0xe: // Set leds
+ s->led_mode = 1;
+ break;
case 7: // Query layout
case 0xf:
clear_queue(s);
- put_queue(s, 0xfe);
- put_queue(s, 19); // XXX, layout?
- break;
+ put_queue(s, 0xfe);
+ put_queue(s, 0); // XXX, layout?
+ break;
default:
- break;
+ break;
}
}
-static void sunmouse_event(void *opaque,
+static void sunmouse_event(void *opaque,
int dx, int dy, int dz, int buttons_state)
{
ChannelState *s = opaque;
put_queue(s, 0);
}
-void slavio_serial_ms_kbd_init(int base, qemu_irq irq)
+void slavio_serial_ms_kbd_init(target_phys_addr_t base, qemu_irq irq)
{
int slavio_serial_io_memory, i;
SerialState *s;
if (!s)
return;
for (i = 0; i < 2; i++) {
- s->chn[i].irq = irq;
- s->chn[i].chn = 1 - i;
- s->chn[i].chr = NULL;
+ s->chn[i].irq = irq;
+ s->chn[i].chn = 1 - i;
+ s->chn[i].chr = NULL;
}
s->chn[0].otherchn = &s->chn[1];
s->chn[1].otherchn = &s->chn[0];
s->chn[1].type = kbd;
slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
- cpu_register_physical_memory(base, SERIAL_MAXADDR, slavio_serial_io_memory);
+ cpu_register_physical_memory(base, SERIAL_SIZE, slavio_serial_io_memory);
qemu_add_mouse_event_handler(sunmouse_event, &s->chn[0], 0, "QEMU Sun Mouse");
qemu_add_kbd_event_handler(sunkbd_event, &s->chn[1]);
projects / qemu / blobdiff