/* * QEMU ESCC (Z8030/Z8530/Z85C30/SCC/ESCC) 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 "hw.h" #include "escc.h" #include "qemu-char.h" #include "console.h" /* debug serial */ //#define DEBUG_SERIAL /* debug keyboard */ //#define DEBUG_KBD /* debug mouse */ //#define DEBUG_MOUSE /* * On Sparc32 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. * * Z85C30 is also used on PowerMacs. There are some small differences * between Sparc version (sunzilog) and PowerMac (pmac): * Offset between control and data registers * There is some kind of lockup bug, but we can ignore it * CTS is inverted * DMA on pmac using DBDMA chip * pmac can do IRDA and faster rates, sunzilog can only do 38400 * pmac baud rate generator clock is 3.6864 MHz, sunzilog 4.9152 MHz */ /* * Modifications: * 2006-Aug-10 Igor Kovalenko : Renamed KBDQueue to SERIOQueue, implemented * serial mouse queue. * Implemented serial mouse protocol. */ #ifdef DEBUG_SERIAL #define SER_DPRINTF(fmt, ...) \ do { printf("SER: " fmt , ## __VA_ARGS__); } while (0) #else #define SER_DPRINTF(fmt, ...) #endif #ifdef DEBUG_KBD #define KBD_DPRINTF(fmt, ...) \ do { printf("KBD: " fmt , ## __VA_ARGS__); } while (0) #else #define KBD_DPRINTF(fmt, ...) #endif #ifdef DEBUG_MOUSE #define MS_DPRINTF(fmt, ...) \ do { printf("MSC: " fmt , ## __VA_ARGS__); } while (0) #else #define MS_DPRINTF(fmt, ...) #endif typedef enum { chn_a, chn_b, } chn_id_t; #define CHN_C(s) ((s)->chn == chn_b? 'b' : 'a') typedef enum { ser, kbd, mouse, } chn_type_t; #define SERIO_QUEUE_SIZE 256 typedef struct { uint8_t data[SERIO_QUEUE_SIZE]; int rptr, wptr, count; } SERIOQueue; #define SERIAL_REGS 16 typedef struct ChannelState { qemu_irq irq; uint32_t reg; uint32_t rxint, txint, rxint_under_svc, txint_under_svc; 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[SERIAL_REGS], rregs[SERIAL_REGS]; SERIOQueue queue; CharDriverState *chr; int e0_mode, led_mode, caps_lock_mode, num_lock_mode; int disabled; int clock; } ChannelState; struct SerialState { struct ChannelState chn[2]; int it_shift; }; #define SERIAL_CTRL 0 #define SERIAL_DATA 1 #define W_CMD 0 #define CMD_PTR_MASK 0x07 #define CMD_CMD_MASK 0x38 #define CMD_HI 0x08 #define CMD_CLR_TXINT 0x28 #define CMD_CLR_IUS 0x38 #define W_INTR 1 #define INTR_INTALL 0x01 #define INTR_TXINT 0x02 #define INTR_RXMODEMSK 0x18 #define INTR_RXINT1ST 0x08 #define INTR_RXINTALL 0x10 #define W_IVEC 2 #define W_RXCTRL 3 #define RXCTRL_RXEN 0x01 #define W_TXCTRL1 4 #define TXCTRL1_PAREN 0x01 #define TXCTRL1_PAREV 0x02 #define TXCTRL1_1STOP 0x04 #define TXCTRL1_1HSTOP 0x08 #define TXCTRL1_2STOP 0x0c #define TXCTRL1_STPMSK 0x0c #define TXCTRL1_CLK1X 0x00 #define TXCTRL1_CLK16X 0x40 #define TXCTRL1_CLK32X 0x80 #define TXCTRL1_CLK64X 0xc0 #define TXCTRL1_CLKMSK 0xc0 #define W_TXCTRL2 5 #define TXCTRL2_TXEN 0x08 #define TXCTRL2_BITMSK 0x60 #define TXCTRL2_5BITS 0x00 #define TXCTRL2_7BITS 0x20 #define TXCTRL2_6BITS 0x40 #define TXCTRL2_8BITS 0x60 #define W_SYNC1 6 #define W_SYNC2 7 #define W_TXBUF 8 #define W_MINTR 9 #define MINTR_STATUSHI 0x10 #define MINTR_RST_MASK 0xc0 #define MINTR_RST_B 0x40 #define MINTR_RST_A 0x80 #define MINTR_RST_ALL 0xc0 #define W_MISC1 10 #define W_CLOCK 11 #define CLOCK_TRXC 0x08 #define W_BRGLO 12 #define W_BRGHI 13 #define W_MISC2 14 #define MISC2_PLLDIS 0x30 #define W_EXTINT 15 #define EXTINT_DCD 0x08 #define EXTINT_SYNCINT 0x10 #define EXTINT_CTSINT 0x20 #define EXTINT_TXUNDRN 0x40 #define EXTINT_BRKINT 0x80 #define R_STATUS 0 #define STATUS_RXAV 0x01 #define STATUS_ZERO 0x02 #define STATUS_TXEMPTY 0x04 #define STATUS_DCD 0x08 #define STATUS_SYNC 0x10 #define STATUS_CTS 0x20 #define STATUS_TXUNDRN 0x40 #define STATUS_BRK 0x80 #define R_SPEC 1 #define SPEC_ALLSENT 0x01 #define SPEC_BITS8 0x06 #define R_IVEC 2 #define IVEC_TXINTB 0x00 #define IVEC_LONOINT 0x06 #define IVEC_LORXINTA 0x0c #define IVEC_LORXINTB 0x04 #define IVEC_LOTXINTA 0x08 #define IVEC_HINOINT 0x60 #define IVEC_HIRXINTA 0x30 #define IVEC_HIRXINTB 0x20 #define IVEC_HITXINTA 0x10 #define R_INTR 3 #define INTR_EXTINTB 0x01 #define INTR_TXINTB 0x02 #define INTR_RXINTB 0x04 #define INTR_EXTINTA 0x08 #define INTR_TXINTA 0x10 #define INTR_RXINTA 0x20 #define R_IPEN 4 #define R_TXCTRL1 5 #define R_TXCTRL2 6 #define R_BC 7 #define R_RXBUF 8 #define R_RXCTRL 9 #define R_MISC 10 #define R_MISC1 11 #define R_BRGLO 12 #define R_BRGHI 13 #define R_MISC1I 14 #define R_EXTINT 15 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 clear_queue(void *opaque) { ChannelState *s = opaque; SERIOQueue *q = &s->queue; q->rptr = q->wptr = q->count = 0; } static void put_queue(void *opaque, int b) { ChannelState *s = opaque; SERIOQueue *q = &s->queue; SER_DPRINTF("channel %c put: 0x%02x\n", CHN_C(s), b); if (q->count >= SERIO_QUEUE_SIZE) return; q->data[q->wptr] = b; if (++q->wptr == SERIO_QUEUE_SIZE) q->wptr = 0; q->count++; serial_receive_byte(s, 0); } static uint32_t get_queue(void *opaque) { ChannelState *s = opaque; SERIOQueue *q = &s->queue; int val; if (q->count == 0) { return 0; } else { val = q->data[q->rptr]; if (++q->rptr == SERIO_QUEUE_SIZE) q->rptr = 0; q->count--; } SER_DPRINTF("channel %c get 0x%02x\n", CHN_C(s), val); if (q->count > 0) serial_receive_byte(s, 0); return val; } static int escc_update_irq_chn(ChannelState *s) { if ((((s->wregs[W_INTR] & INTR_TXINT) && s->txint == 1) || // tx ints enabled, pending ((((s->wregs[W_INTR] & INTR_RXMODEMSK) == INTR_RXINT1ST) || ((s->wregs[W_INTR] & INTR_RXMODEMSK) == INTR_RXINTALL)) && s->rxint == 1) || // rx ints enabled, pending ((s->wregs[W_EXTINT] & EXTINT_BRKINT) && (s->rregs[R_STATUS] & STATUS_BRK)))) { // break int e&p return 1; } return 0; } static void escc_update_irq(ChannelState *s) { int irq; irq = escc_update_irq_chn(s); irq |= escc_update_irq_chn(s->otherchn); SER_DPRINTF("IRQ = %d\n", irq); qemu_set_irq(s->irq, irq); } static void escc_reset_chn(ChannelState *s) { int i; s->reg = 0; for (i = 0; i < SERIAL_REGS; i++) { s->rregs[i] = 0; s->wregs[i] = 0; } s->wregs[W_TXCTRL1] = TXCTRL1_1STOP; // 1X divisor, 1 stop bit, no parity s->wregs[W_MINTR] = MINTR_RST_ALL; s->wregs[W_CLOCK] = CLOCK_TRXC; // Synch mode tx clock = TRxC s->wregs[W_MISC2] = MISC2_PLLDIS; // PLL disabled s->wregs[W_EXTINT] = EXTINT_DCD | EXTINT_SYNCINT | EXTINT_CTSINT | EXTINT_TXUNDRN | EXTINT_BRKINT; // Enable most interrupts if (s->disabled) s->rregs[R_STATUS] = STATUS_TXEMPTY | STATUS_DCD | STATUS_SYNC | STATUS_CTS | STATUS_TXUNDRN; else s->rregs[R_STATUS] = STATUS_TXEMPTY | STATUS_TXUNDRN; s->rregs[R_SPEC] = SPEC_BITS8 | SPEC_ALLSENT; 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); } static void escc_reset(void *opaque) { SerialState *s = opaque; escc_reset_chn(&s->chn[0]); escc_reset_chn(&s->chn[1]); } static inline void set_rxint(ChannelState *s) { s->rxint = 1; if (!s->txint_under_svc) { s->rxint_under_svc = 1; if (s->chn == chn_a) { if (s->wregs[W_MINTR] & MINTR_STATUSHI) s->otherchn->rregs[R_IVEC] = IVEC_HIRXINTA; else s->otherchn->rregs[R_IVEC] = IVEC_LORXINTA; } else { if (s->wregs[W_MINTR] & MINTR_STATUSHI) s->rregs[R_IVEC] = IVEC_HIRXINTB; else s->rregs[R_IVEC] = IVEC_LORXINTB; } } if (s->chn == chn_a) s->rregs[R_INTR] |= INTR_RXINTA; else s->otherchn->rregs[R_INTR] |= INTR_RXINTB; escc_update_irq(s); } static inline void set_txint(ChannelState *s) { s->txint = 1; if (!s->rxint_under_svc) { s->txint_under_svc = 1; if (s->chn == chn_a) { if (s->wregs[W_MINTR] & MINTR_STATUSHI) s->otherchn->rregs[R_IVEC] = IVEC_HITXINTA; else s->otherchn->rregs[R_IVEC] = IVEC_LOTXINTA; } else { s->rregs[R_IVEC] = IVEC_TXINTB; } } if (s->chn == chn_a) s->rregs[R_INTR] |= INTR_TXINTA; else s->otherchn->rregs[R_INTR] |= INTR_TXINTB; escc_update_irq(s); } static inline void clr_rxint(ChannelState *s) { s->rxint = 0; s->rxint_under_svc = 0; if (s->chn == chn_a) { if (s->wregs[W_MINTR] & MINTR_STATUSHI) s->otherchn->rregs[R_IVEC] = IVEC_HINOINT; else s->otherchn->rregs[R_IVEC] = IVEC_LONOINT; s->rregs[R_INTR] &= ~INTR_RXINTA; } else { if (s->wregs[W_MINTR] & MINTR_STATUSHI) s->rregs[R_IVEC] = IVEC_HINOINT; else s->rregs[R_IVEC] = IVEC_LONOINT; s->otherchn->rregs[R_INTR] &= ~INTR_RXINTB; } if (s->txint) set_txint(s); escc_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->wregs[W_MINTR] & MINTR_STATUSHI) s->otherchn->rregs[R_IVEC] = IVEC_HINOINT; else s->otherchn->rregs[R_IVEC] = IVEC_LONOINT; s->rregs[R_INTR] &= ~INTR_TXINTA; } else { if (s->wregs[W_MINTR] & MINTR_STATUSHI) s->rregs[R_IVEC] = IVEC_HINOINT; else s->rregs[R_IVEC] = IVEC_LONOINT; s->otherchn->rregs[R_INTR] &= ~INTR_TXINTB; } if (s->rxint) set_rxint(s); escc_update_irq(s); } static void escc_update_parameters(ChannelState *s) { int speed, parity, data_bits, stop_bits; QEMUSerialSetParams ssp; if (!s->chr || s->type != ser) return; if (s->wregs[W_TXCTRL1] & TXCTRL1_PAREN) { if (s->wregs[W_TXCTRL1] & TXCTRL1_PAREV) parity = 'E'; else parity = 'O'; } else { parity = 'N'; } if ((s->wregs[W_TXCTRL1] & TXCTRL1_STPMSK) == TXCTRL1_2STOP) stop_bits = 2; else stop_bits = 1; switch (s->wregs[W_TXCTRL2] & TXCTRL2_BITMSK) { case TXCTRL2_5BITS: data_bits = 5; break; case TXCTRL2_7BITS: data_bits = 7; break; case TXCTRL2_6BITS: data_bits = 6; break; default: case TXCTRL2_8BITS: data_bits = 8; break; } speed = s->clock / ((s->wregs[W_BRGLO] | (s->wregs[W_BRGHI] << 8)) + 2); switch (s->wregs[W_TXCTRL1] & TXCTRL1_CLKMSK) { case TXCTRL1_CLK1X: break; case TXCTRL1_CLK16X: speed /= 16; break; case TXCTRL1_CLK32X: speed /= 32; break; default: case TXCTRL1_CLK64X: speed /= 64; break; } ssp.speed = speed; ssp.parity = parity; ssp.data_bits = data_bits; ssp.stop_bits = stop_bits; SER_DPRINTF("channel %c: speed=%d parity=%c data=%d stop=%d\n", CHN_C(s), speed, parity, data_bits, stop_bits); qemu_chr_ioctl(s->chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp); } static void escc_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) { SerialState *serial = opaque; ChannelState *s; uint32_t saddr; int newreg, channel; val &= 0xff; saddr = (addr >> serial->it_shift) & 1; channel = (addr >> (serial->it_shift + 1)) & 1; s = &serial->chn[channel]; switch (saddr) { case SERIAL_CTRL: SER_DPRINTF("Write channel %c, reg[%d] = %2.2x\n", CHN_C(s), s->reg, val & 0xff); newreg = 0; switch (s->reg) { case W_CMD: newreg = val & CMD_PTR_MASK; val &= CMD_CMD_MASK; switch (val) { case CMD_HI: newreg |= CMD_HI; break; case CMD_CLR_TXINT: clr_txint(s); break; case CMD_CLR_IUS: if (s->rxint_under_svc) clr_rxint(s); else if (s->txint_under_svc) clr_txint(s); break; default: break; } break; case W_INTR ... W_RXCTRL: case W_SYNC1 ... W_TXBUF: case W_MISC1 ... W_CLOCK: case W_MISC2 ... W_EXTINT: s->wregs[s->reg] = val; break; case W_TXCTRL1: case W_TXCTRL2: s->wregs[s->reg] = val; escc_update_parameters(s); break; case W_BRGLO: case W_BRGHI: s->wregs[s->reg] = val; s->rregs[s->reg] = val; escc_update_parameters(s); break; case W_MINTR: switch (val & MINTR_RST_MASK) { case 0: default: break; case MINTR_RST_B: escc_reset_chn(&serial->chn[0]); return; case MINTR_RST_A: escc_reset_chn(&serial->chn[1]); return; case MINTR_RST_ALL: escc_reset(serial); return; } break; default: break; } if (s->reg == 0) s->reg = newreg; else s->reg = 0; break; case SERIAL_DATA: SER_DPRINTF("Write channel %c, ch %d\n", CHN_C(s), val); s->tx = val; if (s->wregs[W_TXCTRL2] & TXCTRL2_TXEN) { // tx enabled if (s->chr) qemu_chr_write(s->chr, &s->tx, 1); else if (s->type == kbd && !s->disabled) { handle_kbd_command(s, val); } } s->rregs[R_STATUS] |= STATUS_TXEMPTY; // Tx buffer empty s->rregs[R_SPEC] |= SPEC_ALLSENT; // All sent set_txint(s); break; default: break; } } static uint32_t escc_mem_readb(void *opaque, target_phys_addr_t addr) { SerialState *serial = opaque; ChannelState *s; uint32_t saddr; uint32_t ret; int channel; saddr = (addr >> serial->it_shift) & 1; channel = (addr >> (serial->it_shift + 1)) & 1; s = &serial->chn[channel]; switch (saddr) { case SERIAL_CTRL: 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 SERIAL_DATA: s->rregs[R_STATUS] &= ~STATUS_RXAV; 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); if (s->chr) qemu_chr_accept_input(s->chr); return ret; default: break; } return 0; } static int serial_can_receive(void *opaque) { ChannelState *s = opaque; int ret; if (((s->wregs[W_RXCTRL] & RXCTRL_RXEN) == 0) // Rx not enabled || ((s->rregs[R_STATUS] & STATUS_RXAV) == STATUS_RXAV)) // char already available ret = 0; else ret = 1; return ret; } static void serial_receive_byte(ChannelState *s, int ch) { SER_DPRINTF("channel %c put ch %d\n", CHN_C(s), ch); s->rregs[R_STATUS] |= STATUS_RXAV; s->rx = ch; set_rxint(s); } static void serial_receive_break(ChannelState *s) { s->rregs[R_STATUS] |= STATUS_BRK; escc_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 *escc_mem_read[3] = { escc_mem_readb, NULL, NULL, }; static CPUWriteMemoryFunc *escc_mem_write[3] = { escc_mem_writeb, NULL, NULL, }; static void escc_save_chn(QEMUFile *f, ChannelState *s) { uint32_t tmp = 0; qemu_put_be32s(f, &tmp); /* unused, was IRQ. */ qemu_put_be32s(f, &s->reg); qemu_put_be32s(f, &s->rxint); qemu_put_be32s(f, &s->txint); qemu_put_be32s(f, &s->rxint_under_svc); qemu_put_be32s(f, &s->txint_under_svc); qemu_put_8s(f, &s->rx); qemu_put_8s(f, &s->tx); qemu_put_buffer(f, s->wregs, SERIAL_REGS); qemu_put_buffer(f, s->rregs, SERIAL_REGS); } static void escc_save(QEMUFile *f, void *opaque) { SerialState *s = opaque; escc_save_chn(f, &s->chn[0]); escc_save_chn(f, &s->chn[1]); } static int escc_load_chn(QEMUFile *f, ChannelState *s, int version_id) { uint32_t tmp; if (version_id > 2) return -EINVAL; qemu_get_be32s(f, &tmp); /* unused */ qemu_get_be32s(f, &s->reg); qemu_get_be32s(f, &s->rxint); qemu_get_be32s(f, &s->txint); if (version_id >= 2) { qemu_get_be32s(f, &s->rxint_under_svc); qemu_get_be32s(f, &s->txint_under_svc); } qemu_get_8s(f, &s->rx); qemu_get_8s(f, &s->tx); qemu_get_buffer(f, s->wregs, SERIAL_REGS); qemu_get_buffer(f, s->rregs, SERIAL_REGS); return 0; } static int escc_load(QEMUFile *f, void *opaque, int version_id) { SerialState *s = opaque; int ret; ret = escc_load_chn(f, &s->chn[0], version_id); if (ret != 0) return ret; ret = escc_load_chn(f, &s->chn[1], version_id); return ret; } int escc_init(target_phys_addr_t base, qemu_irq irqA, qemu_irq irqB, CharDriverState *chrA, CharDriverState *chrB, int clock, int it_shift) { int escc_io_memory, i; SerialState *s; s = qemu_mallocz(sizeof(SerialState)); escc_io_memory = cpu_register_io_memory(escc_mem_read, escc_mem_write, s); if (base) cpu_register_physical_memory(base, ESCC_SIZE << it_shift, escc_io_memory); s->it_shift = it_shift; s->chn[0].chr = chrB; s->chn[1].chr = chrA; s->chn[0].disabled = 0; s->chn[1].disabled = 0; s->chn[0].irq = irqB; s->chn[1].irq = irqA; for (i = 0; i < 2; i++) { s->chn[i].chn = 1 - i; s->chn[i].type = ser; s->chn[i].clock = clock / 2; 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]; if (base) register_savevm("escc", base, 2, escc_save, escc_load, s); else register_savevm("escc", -1, 2, escc_save, escc_load, s); qemu_register_reset(escc_reset, 0, s); escc_reset(s); return escc_io_memory; } 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 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, 1, 3, 25, 26, 49, 52, 72, 73, 97, 99, 111, 118, 120, 122, 67, 0, }; static void sunkbd_event(void *opaque, int ch) { ChannelState *s = opaque; int release = ch & 0x80; 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 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, 0); // 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; MS_DPRINTF("dx=%d dy=%d buttons=%01x\n", dx, dy, buttons_state); ch = 0x80 | 0x7; /* protocol start byte, no buttons pressed */ if (buttons_state & MOUSE_EVENT_LBUTTON) ch ^= 0x4; if (buttons_state & MOUSE_EVENT_MBUTTON) ch ^= 0x2; if (buttons_state & MOUSE_EVENT_RBUTTON) ch ^= 0x1; put_queue(s, ch); ch = dx; if (ch > 127) ch=127; else if (ch < -127) ch=-127; put_queue(s, ch & 0xff); ch = -dy; if (ch > 127) ch=127; else if (ch < -127) ch=-127; put_queue(s, ch & 0xff); // MSC protocol specify two extra motion bytes put_queue(s, 0); put_queue(s, 0); } void slavio_serial_ms_kbd_init(target_phys_addr_t base, qemu_irq irq, int disabled, int clock, int it_shift) { int slavio_serial_io_memory, i; SerialState *s; s = qemu_mallocz(sizeof(SerialState)); s->it_shift = it_shift; 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].clock = clock / 2; } s->chn[0].otherchn = &s->chn[1]; 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(escc_mem_read, escc_mem_write, s); cpu_register_physical_memory(base, ESCC_SIZE << it_shift, 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]); register_savevm("slavio_serial_mouse", base, 2, escc_save, escc_load, s); qemu_register_reset(escc_reset, 0, s); escc_reset(s); }