mirror of https://gitee.com/openkylin/qemu.git
keyboard support (Blue Swirl)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1346 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard
parent
d827220bbf
commit
8be1f5c889
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@ -1,7 +1,7 @@
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/*
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* QEMU Sparc SLAVIO serial port emulation
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*
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* Copyright (c) 2003-2004 Fabrice Bellard
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* Copyright (c) 2003-2005 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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@ -22,13 +22,13 @@
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* THE SOFTWARE.
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*/
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#include "vl.h"
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/* debug serial */
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//#define DEBUG_SERIAL
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/* debug keyboard */
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//#define DEBUG_KBD
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/* debug keyboard : only mouse */
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/* debug mouse */
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//#define DEBUG_MOUSE
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/*
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@ -42,11 +42,49 @@
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*
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*/
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#ifdef DEBUG_SERIAL
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#define SER_DPRINTF(fmt, args...) \
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do { printf("SER: " fmt , ##args); } while (0)
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#else
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#define SER_DPRINTF(fmt, args...)
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#endif
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#ifdef DEBUG_KBD
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#define KBD_DPRINTF(fmt, args...) \
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do { printf("KBD: " fmt , ##args); } while (0)
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#else
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#define KBD_DPRINTF(fmt, args...)
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#endif
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#ifdef DEBUG_MOUSE
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#define MS_DPRINTF(fmt, args...) \
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do { printf("SER: " fmt , ##args); } while (0)
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#else
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#define MS_DPRINTF(fmt, args...)
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#endif
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typedef enum {
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chn_a, chn_b,
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} chn_id_t;
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typedef enum {
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ser, kbd, mouse,
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} chn_type_t;
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#define KBD_QUEUE_SIZE 256
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typedef struct {
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uint8_t data[KBD_QUEUE_SIZE];
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int rptr, wptr, count;
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} KBDQueue;
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typedef struct ChannelState {
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int irq;
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int reg;
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int rxint, txint;
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chn_id_t chn; // this channel, A (base+4) or B (base+0)
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chn_type_t type;
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struct ChannelState *otherchn;
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uint8_t rx, tx, wregs[16], rregs[16];
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KBDQueue queue;
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CharDriverState *chr;
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} ChannelState;
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@ -56,6 +94,45 @@ struct SerialState {
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#define SERIAL_MAXADDR 7
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static void handle_kbd_command(ChannelState *s, int val);
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static int serial_can_receive(void *opaque);
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static void serial_receive_byte(ChannelState *s, int ch);
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static void put_queue(void *opaque, int b)
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{
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ChannelState *s = opaque;
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KBDQueue *q = &s->queue;
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KBD_DPRINTF("put: 0x%02x\n", b);
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if (q->count >= KBD_QUEUE_SIZE)
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return;
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q->data[q->wptr] = b;
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if (++q->wptr == KBD_QUEUE_SIZE)
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q->wptr = 0;
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q->count++;
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serial_receive_byte(s, 0);
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}
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static uint32_t get_queue(void *opaque)
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{
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ChannelState *s = opaque;
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KBDQueue *q = &s->queue;
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int val;
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if (q->count == 0) {
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return 0;
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} else {
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val = q->data[q->rptr];
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if (++q->rptr == KBD_QUEUE_SIZE)
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q->rptr = 0;
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q->count--;
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}
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KBD_DPRINTF("get 0x%02x\n", val);
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if (q->count > 0)
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serial_receive_byte(s, 0);
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return val;
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}
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static void slavio_serial_update_irq(ChannelState *s)
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{
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if ((s->wregs[1] & 1) && // interrupts enabled
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@ -110,6 +187,7 @@ static void slavio_serial_mem_writeb(void *opaque, target_phys_addr_t addr, uint
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s = &ser->chn[channel];
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switch (saddr) {
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case 0:
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SER_DPRINTF("Write channel %c, reg[%d] = %2.2x\n", channel? 'b' : 'a', s->reg, val & 0xff);
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newreg = 0;
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switch (s->reg) {
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case 0:
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@ -158,11 +236,23 @@ static void slavio_serial_mem_writeb(void *opaque, target_phys_addr_t addr, uint
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s->reg = 0;
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break;
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case 1:
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SER_DPRINTF("Write channel %c, ch %d\n", channel? 'b' : 'a', val);
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if (s->wregs[5] & 8) { // tx enabled
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s->tx = val;
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if (s->chr)
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qemu_chr_write(s->chr, &s->tx, 1);
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else if (s->type == kbd) {
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handle_kbd_command(s, val);
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}
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s->txint = 1;
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s->rregs[0] |= 4;
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// Interrupts reported only on channel A
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if (s->chn == 0)
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s->rregs[3] |= 0x10;
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else {
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s->otherchn->rregs[3] |= 2;
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}
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slavio_serial_update_irq(s);
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}
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break;
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default:
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@ -183,12 +273,18 @@ static uint32_t slavio_serial_mem_readb(void *opaque, target_phys_addr_t addr)
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s = &ser->chn[channel];
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switch (saddr) {
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case 0:
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SER_DPRINTF("Read channel %c, reg[%d] = %2.2x\n", channel? 'b' : 'a', s->reg, s->rregs[s->reg]);
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ret = s->rregs[s->reg];
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s->reg = 0;
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return ret;
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case 1:
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SER_DPRINTF("Read channel %c, ch %d\n", channel? 'b' : 'a', s->rx);
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s->rregs[0] &= ~1;
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return s->rx;
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if (s->type == kbd)
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ret = get_queue(s);
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else
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ret = s->rx;
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return ret;
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default:
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break;
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}
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@ -208,6 +304,12 @@ static int serial_can_receive(void *opaque)
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static void serial_receive_byte(ChannelState *s, int ch)
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{
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s->rregs[0] |= 1;
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// Interrupts reported only on channel A
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if (s->chn == 0)
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s->rregs[3] |= 0x20;
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else {
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s->otherchn->rregs[3] |= 4;
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}
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s->rx = ch;
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s->rxint = 1;
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slavio_serial_update_irq(s);
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@ -295,39 +397,73 @@ static int slavio_serial_load(QEMUFile *f, void *opaque, int version_id)
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SerialState *slavio_serial_init(int base, int irq, CharDriverState *chr1, CharDriverState *chr2)
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{
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int slavio_serial_io_memory;
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int slavio_serial_io_memory, i;
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SerialState *s;
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s = qemu_mallocz(sizeof(SerialState));
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if (!s)
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return NULL;
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s->chn[0].irq = irq;
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s->chn[1].irq = irq;
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s->chn[0].chr = chr1;
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s->chn[1].chr = chr2;
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slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
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cpu_register_physical_memory(base, SERIAL_MAXADDR, slavio_serial_io_memory);
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if (chr1) {
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qemu_chr_add_read_handler(chr1, serial_can_receive, serial_receive1, &s->chn[0]);
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qemu_chr_add_event_handler(chr1, serial_event);
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}
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if (chr2) {
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qemu_chr_add_read_handler(chr2, serial_can_receive, serial_receive1, &s->chn[1]);
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qemu_chr_add_event_handler(chr2, serial_event);
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s->chn[0].chr = chr1;
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s->chn[1].chr = chr2;
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for (i = 0; i < 2; i++) {
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s->chn[i].irq = irq;
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s->chn[i].chn = 1 - i;
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s->chn[i].type = ser;
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if (s->chn[i].chr) {
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qemu_chr_add_read_handler(s->chn[i].chr, serial_can_receive, serial_receive1, &s->chn[i]);
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qemu_chr_add_event_handler(s->chn[i].chr, serial_event);
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}
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}
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s->chn[0].otherchn = &s->chn[1];
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s->chn[1].otherchn = &s->chn[0];
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register_savevm("slavio_serial", base, 1, slavio_serial_save, slavio_serial_load, s);
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qemu_register_reset(slavio_serial_reset, s);
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slavio_serial_reset(s);
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return s;
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}
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static const uint8_t keycodes[128] = {
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127, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 43, 53,
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54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 89, 76, 77, 78,
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79, 80, 81, 82, 83, 84, 85, 86, 87, 42, 99, 88, 100, 101, 102, 103,
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104, 105, 106, 107, 108, 109, 110, 47, 19, 121, 119, 5, 6, 8, 10, 12,
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14, 16, 17, 18, 7, 98, 23, 68, 69, 70, 71, 91, 92, 93, 125, 112,
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113, 114, 94, 50, 0, 0, 124, 9, 11, 0, 0, 0, 0, 0, 0, 0,
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90, 0, 46, 22, 13, 111, 52, 20, 96, 24, 28, 74, 27, 123, 44, 66,
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0, 45, 2, 4, 48, 0, 0, 21, 0, 0, 0, 0, 0, 120, 122, 67,
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};
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static void sunkbd_event(void *opaque, int ch)
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{
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ChannelState *s = opaque;
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// XXX: PC -> Sun Type 5 translation?
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serial_receive_byte(s, ch);
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int release = ch & 0x80;
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ch = keycodes[ch & 0x7f];
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KBD_DPRINTF("Keycode %d (%s)\n", ch, release? "release" : "press");
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put_queue(s, ch | release);
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}
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static void handle_kbd_command(ChannelState *s, int val)
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{
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KBD_DPRINTF("Command %d\n", val);
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switch (val) {
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case 1: // Reset, return type code
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put_queue(s, 0xff);
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put_queue(s, 0xff);
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put_queue(s, 5); // Type 5
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break;
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case 7: // Query layout
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put_queue(s, 0xfe);
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put_queue(s, 0x20); // XXX, layout?
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break;
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default:
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break;
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}
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}
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static void sunmouse_event(void *opaque,
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@ -343,22 +479,27 @@ static void sunmouse_event(void *opaque,
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void slavio_serial_ms_kbd_init(int base, int irq)
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{
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int slavio_serial_io_memory;
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int slavio_serial_io_memory, i;
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SerialState *s;
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s = qemu_mallocz(sizeof(SerialState));
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if (!s)
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return;
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s->chn[0].irq = irq;
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s->chn[1].irq = irq;
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s->chn[0].chr = NULL;
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s->chn[1].chr = NULL;
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for (i = 0; i < 2; i++) {
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s->chn[i].irq = irq;
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s->chn[i].chn = 1 - i;
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s->chn[i].chr = NULL;
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}
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s->chn[0].otherchn = &s->chn[1];
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s->chn[1].otherchn = &s->chn[0];
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s->chn[0].type = mouse;
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s->chn[1].type = kbd;
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slavio_serial_io_memory = cpu_register_io_memory(0, slavio_serial_mem_read, slavio_serial_mem_write, s);
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cpu_register_physical_memory(base, SERIAL_MAXADDR, slavio_serial_io_memory);
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qemu_add_kbd_event_handler(sunkbd_event, &s->chn[0]);
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qemu_add_mouse_event_handler(sunmouse_event, &s->chn[1]);
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qemu_add_mouse_event_handler(sunmouse_event, &s->chn[0]);
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qemu_add_kbd_event_handler(sunkbd_event, &s->chn[1]);
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qemu_register_reset(slavio_serial_reset, s);
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slavio_serial_reset(s);
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}
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