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-rw-r--r--hw/slavio_serial.c545
1 files changed, 0 insertions, 545 deletions
diff --git a/hw/slavio_serial.c b/hw/slavio_serial.c
deleted file mode 100644
index b13e7c4..0000000
--- a/hw/slavio_serial.c
+++ /dev/null
@@ -1,545 +0,0 @@
-/*
- * 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
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "vl.h"
-/* debug serial */
-//#define DEBUG_SERIAL
-
-/* debug keyboard */
-//#define DEBUG_KBD
-
-/* debug mouse */
-//#define DEBUG_MOUSE
-
-/*
- * 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.
- *
- */
-
-#ifdef DEBUG_SERIAL
-#define SER_DPRINTF(fmt, args...) \
-do { printf("SER: " fmt , ##args); } while (0)
-#define pic_set_irq(irq, level) \
-do { printf("SER: set_irq(%d): %d\n", (irq), (level)); pic_set_irq((irq),(level));} while (0)
-#else
-#define SER_DPRINTF(fmt, args...)
-#endif
-#ifdef DEBUG_KBD
-#define KBD_DPRINTF(fmt, args...) \
-do { printf("KBD: " fmt , ##args); } while (0)
-#else
-#define KBD_DPRINTF(fmt, args...)
-#endif
-#ifdef DEBUG_MOUSE
-#define MS_DPRINTF(fmt, args...) \
-do { printf("SER: " fmt , ##args); } while (0)
-#else
-#define MS_DPRINTF(fmt, args...)
-#endif
-
-typedef enum {
- chn_a, chn_b,
-} chn_id_t;
-
-typedef enum {
- ser, kbd, mouse,
-} chn_type_t;
-
-#define KBD_QUEUE_SIZE 256
-
-typedef struct {
- uint8_t data[KBD_QUEUE_SIZE];
- int rptr, wptr, count;
-} KBDQueue;
-
-typedef struct ChannelState {
- int irq;
- int reg;
- int rxint, txint;
- chn_id_t chn; // this channel, A (base+4) or B (base+0)
- chn_type_t type;
- struct ChannelState *otherchn;
- uint8_t rx, tx, wregs[16], rregs[16];
- KBDQueue queue;
- CharDriverState *chr;
-} ChannelState;
-
-struct SerialState {
- struct ChannelState chn[2];
-};
-
-#define SERIAL_MAXADDR 7
-
-static void handle_kbd_command(ChannelState *s, int val);
-static int serial_can_receive(void *opaque);
-static void serial_receive_byte(ChannelState *s, int ch);
-
-static void put_queue(void *opaque, int b)
-{
- ChannelState *s = opaque;
- KBDQueue *q = &s->queue;
-
- KBD_DPRINTF("put: 0x%02x\n", b);
- if (q->count >= KBD_QUEUE_SIZE)
- return;
- q->data[q->wptr] = b;
- if (++q->wptr == KBD_QUEUE_SIZE)
- q->wptr = 0;
- q->count++;
- serial_receive_byte(s, 0);
-}
-
-static uint32_t get_queue(void *opaque)
-{
- ChannelState *s = opaque;
- KBDQueue *q = &s->queue;
- int val;
-
- if (q->count == 0) {
- return 0;
- } else {
- val = q->data[q->rptr];
- if (++q->rptr == KBD_QUEUE_SIZE)
- q->rptr = 0;
- q->count--;
- }
- KBD_DPRINTF("get 0x%02x\n", val);
- if (q->count > 0)
- serial_receive_byte(s, 0);
- return val;
-}
-
-static void slavio_serial_update_irq(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
- pic_set_irq(s->irq, 1);
- } else {
- pic_set_irq(s->irq, 0);
- }
-}
-
-static void slavio_serial_reset_chn(ChannelState *s)
-{
- int i;
-
- s->reg = 0;
- for (i = 0; i < SERIAL_MAXADDR; i++) {
- s->rregs[i] = 0;
- s->wregs[i] = 0;
- }
- s->wregs[4] = 4;
- s->wregs[9] = 0xc0;
- s->wregs[11] = 8;
- s->wregs[14] = 0x30;
- s->wregs[15] = 0xf8;
- s->rregs[0] = 0x44;
- s->rregs[1] = 6;
-
- s->rx = s->tx = 0;
- s->rxint = s->txint = 0;
-}
-
-static void slavio_serial_reset(void *opaque)
-{
- SerialState *s = opaque;
- slavio_serial_reset_chn(&s->chn[0]);
- slavio_serial_reset_chn(&s->chn[1]);
-}
-
-static inline void clr_rxint(ChannelState *s)
-{
- s->rxint = 0;
- if (s->chn == 0)
- s->rregs[3] &= ~0x20;
- else {
- s->otherchn->rregs[3] &= ~4;
- }
- slavio_serial_update_irq(s);
-}
-
-static inline void set_rxint(ChannelState *s)
-{
- s->rxint = 1;
- if (s->chn == 0)
- 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;
- if (s->chn == 0)
- s->rregs[3] &= ~0x10;
- else {
- s->otherchn->rregs[3] &= ~2;
- }
- slavio_serial_update_irq(s);
-}
-
-static inline void set_txint(ChannelState *s)
-{
- s->txint = 1;
- if (s->chn == 0)
- s->rregs[3] |= 0x10;
- else {
- s->otherchn->rregs[3] |= 2;
- }
- slavio_serial_update_irq(s);
-}
-
-static void slavio_serial_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
-{
- SerialState *ser = opaque;
- ChannelState *s;
- uint32_t saddr;
- int newreg, channel;
-
- val &= 0xff;
- saddr = (addr & 3) >> 1;
- channel = (addr & SERIAL_MAXADDR) >> 2;
- s = &ser->chn[channel];
- switch (saddr) {
- case 0:
- SER_DPRINTF("Write channel %c, reg[%d] = %2.2x\n", channel? 'b' : 'a', s->reg, val & 0xff);
- newreg = 0;
- switch (s->reg) {
- case 0:
- newreg = val & 7;
- val &= 0x38;
- switch (val) {
- case 8:
- newreg |= 0x8;
- break;
- case 0x20:
- clr_rxint(s);
- break;
- case 0x28:
- clr_txint(s);
- break;
- case 0x38:
- clr_rxint(s);
- clr_txint(s);
- break;
- default:
- break;
- }
- break;
- case 1 ... 8:
- case 10 ... 15:
- s->wregs[s->reg] = val;
- 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;
- case 1:
- SER_DPRINTF("Write channel %c, ch %d\n", channel? 'b' : 'a', 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->txint = 1;
- s->rregs[0] |= 4; // Tx buffer empty
- s->rregs[1] |= 1; // All sent
- set_txint(s);
- slavio_serial_update_irq(s);
- }
- break;
- default:
- break;
- }
-}
-
-static uint32_t slavio_serial_mem_readb(void *opaque, target_phys_addr_t addr)
-{
- SerialState *ser = opaque;
- ChannelState *s;
- uint32_t saddr;
- uint32_t ret;
- int channel;
-
- saddr = (addr & 3) >> 1;
- channel = (addr & SERIAL_MAXADDR) >> 2;
- s = &ser->chn[channel];
- switch (saddr) {
- case 0:
- SER_DPRINTF("Read channel %c, reg[%d] = %2.2x\n", channel? 'b' : 'a', s->reg, s->rregs[s->reg]);
- ret = s->rregs[s->reg];
- s->reg = 0;
- return ret;
- case 1:
- s->rregs[0] &= ~1;
- clr_rxint(s);
- if (s->type == kbd)
- ret = get_queue(s);
- else
- ret = s->rx;
- SER_DPRINTF("Read channel %c, ch %d\n", channel? 'b' : 'a', ret);
- return ret;
- default:
- break;
- }
- return 0;
-}
-
-static int serial_can_receive(void *opaque)
-{
- ChannelState *s = opaque;
- if (((s->wregs[3] & 1) == 0) // Rx not enabled
- || ((s->rregs[0] & 1) == 1)) // char already available
- return 0;
- else
- return 1;
-}
-
-static void serial_receive_byte(ChannelState *s, int ch)
-{
- SER_DPRINTF("put ch %d\n", ch);
- s->rregs[0] |= 1;
- s->rx = ch;
- set_rxint(s);
-}
-
-static void serial_receive_break(ChannelState *s)
-{
- s->rregs[0] |= 0x80;
- slavio_serial_update_irq(s);
-}
-
-static void serial_receive1(void *opaque, const uint8_t *buf, int size)
-{
- ChannelState *s = opaque;
- serial_receive_byte(s, buf[0]);
-}
-
-static void serial_event(void *opaque, int event)
-{
- ChannelState *s = opaque;
- if (event == CHR_EVENT_BREAK)
- serial_receive_break(s);
-}
-
-static CPUReadMemoryFunc *slavio_serial_mem_read[3] = {
- slavio_serial_mem_readb,
- slavio_serial_mem_readb,
- slavio_serial_mem_readb,
-};
-
-static CPUWriteMemoryFunc *slavio_serial_mem_write[3] = {
- slavio_serial_mem_writeb,
- slavio_serial_mem_writeb,
- slavio_serial_mem_writeb,
-};
-
-static void slavio_serial_save_chn(QEMUFile *f, ChannelState *s)
-{
- qemu_put_be32s(f, &s->irq);
- qemu_put_be32s(f, &s->reg);
- qemu_put_be32s(f, &s->rxint);
- qemu_put_be32s(f, &s->txint);
- qemu_put_8s(f, &s->rx);
- qemu_put_8s(f, &s->tx);
- qemu_put_buffer(f, s->wregs, 16);
- qemu_put_buffer(f, s->rregs, 16);
-}
-
-static void slavio_serial_save(QEMUFile *f, void *opaque)
-{
- SerialState *s = opaque;
-
- slavio_serial_save_chn(f, &s->chn[0]);
- slavio_serial_save_chn(f, &s->chn[1]);
-}
-
-static int slavio_serial_load_chn(QEMUFile *f, ChannelState *s, int version_id)
-{
- if (version_id != 1)
- return -EINVAL;
-
- qemu_get_be32s(f, &s->irq);
- qemu_get_be32s(f, &s->reg);
- qemu_get_be32s(f, &s->rxint);
- qemu_get_be32s(f, &s->txint);
- qemu_get_8s(f, &s->rx);
- qemu_get_8s(f, &s->tx);
- qemu_get_buffer(f, s->wregs, 16);
- qemu_get_buffer(f, s->rregs, 16);
- return 0;
-}
-
-static int slavio_serial_load(QEMUFile *f, void *opaque, int version_id)
-{
- SerialState *s = opaque;
- int ret;
-
- ret = slavio_serial_load_chn(f, &s->chn[0], version_id);
- if (ret != 0)
- return ret;
- ret = slavio_serial_load_chn(f, &s->chn[1], version_id);
- return ret;
-
-}
-
-SerialState *slavio_serial_init(int base, int irq, CharDriverState *chr1, CharDriverState *chr2)
-{
- int slavio_serial_io_memory, i;
- SerialState *s;
-
- s = qemu_mallocz(sizeof(SerialState));
- if (!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);
-
- 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_read_handler(s->chn[i].chr, serial_can_receive, serial_receive1, &s->chn[i]);
- qemu_chr_add_event_handler(s->chn[i].chr, serial_event);
- }
- }
- s->chn[0].otherchn = &s->chn[1];
- s->chn[1].otherchn = &s->chn[0];
- register_savevm("slavio_serial", base, 1, slavio_serial_save, slavio_serial_load, s);
- qemu_register_reset(slavio_serial_reset, s);
- slavio_serial_reset(s);
- return s;
-}
-
-static const uint8_t keycodes[128] = {
- 127, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 43, 53,
- 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 89, 76, 77, 78,
- 79, 80, 81, 82, 83, 84, 85, 86, 87, 42, 99, 88, 100, 101, 102, 103,
- 104, 105, 106, 107, 108, 109, 110, 47, 19, 121, 119, 5, 6, 8, 10, 12,
- 14, 16, 17, 18, 7, 98, 23, 68, 69, 70, 71, 91, 92, 93, 125, 112,
- 113, 114, 94, 50, 0, 0, 124, 9, 11, 0, 0, 0, 0, 0, 0, 0,
- 90, 0, 46, 22, 13, 111, 52, 20, 96, 24, 28, 74, 27, 123, 44, 66,
- 0, 45, 2, 4, 48, 0, 0, 21, 0, 0, 0, 0, 0, 120, 122, 67,
-};
-
-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");
- put_queue(s, ch | release);
-}
-
-static void handle_kbd_command(ChannelState *s, int val)
-{
- KBD_DPRINTF("Command %d\n", val);
- switch (val) {
- case 1: // Reset, return type code
- put_queue(s, 0xff);
- put_queue(s, 5); // Type 5
- break;
- case 7: // Query layout
- put_queue(s, 0xfe);
- put_queue(s, 0x20); // XXX, layout?
- break;
- default:
- break;
- }
-}
-
-static void sunmouse_event(void *opaque,
- int dx, int dy, int dz, int buttons_state)
-{
- ChannelState *s = opaque;
- int ch;
-
- // XXX
- ch = 0x42;
- serial_receive_byte(s, ch);
-}
-
-void slavio_serial_ms_kbd_init(int base, int irq)
-{
- int slavio_serial_io_memory, i;
- SerialState *s;
-
- s = qemu_mallocz(sizeof(SerialState));
- 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[0].otherchn = &s->chn[1];
- s->chn[1].otherchn = &s->chn[0];
- s->chn[0].type = mouse;
- 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);
-
- qemu_add_mouse_event_handler(sunmouse_event, &s->chn[0], 0);
- qemu_add_kbd_event_handler(sunkbd_event, &s->chn[1]);
- qemu_register_reset(slavio_serial_reset, s);
- slavio_serial_reset(s);
-}
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