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Diffstat (limited to 'qemu/hw/char/escc.c')
| -rw-r--r-- | qemu/hw/char/escc.c | 1052 |
1 files changed, 1052 insertions, 0 deletions
diff --git a/qemu/hw/char/escc.c b/qemu/hw/char/escc.c new file mode 100644 index 000000000..ba653efd6 --- /dev/null +++ b/qemu/hw/char/escc.c @@ -0,0 +1,1052 @@ +/* + * 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/hw.h" +#include "hw/sysbus.h" +#include "hw/char/escc.h" +#include "sysemu/char.h" +#include "ui/console.h" +#include "ui/input.h" +#include "trace.h" + +/* + * Chipset docs: + * "Z80C30/Z85C30/Z80230/Z85230/Z85233 SCC/ESCC User Manual", + * http://www.zilog.com/docs/serial/scc_escc_um.pdf + * + * 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. + * + * 2010-May-23 Artyom Tarasenko: Reworked IUS logic + */ + +typedef enum { + chn_a, chn_b, +} ChnID; + +#define CHN_C(s) ((s)->chn == chn_b? 'b' : 'a') + +typedef enum { + ser, kbd, mouse, +} ChnType; + +#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 rxint, txint, rxint_under_svc, txint_under_svc; + struct ChannelState *otherchn; + uint32_t reg; + uint8_t 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; + uint32_t vmstate_dummy; + ChnID chn; // this channel, A (base+4) or B (base+0) + ChnType type; + uint8_t rx, tx; + QemuInputHandlerState *hs; +} ChannelState; + +#define ESCC(obj) OBJECT_CHECK(ESCCState, (obj), TYPE_ESCC) + +typedef struct ESCCState { + SysBusDevice parent_obj; + + struct ChannelState chn[2]; + uint32_t it_shift; + MemoryRegion mmio; + uint32_t disabled; + uint32_t frequency; +} ESCCState; + +#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; + + trace_escc_put_queue(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--; + } + trace_escc_get_queue(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); + + trace_escc_update_irq(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(DeviceState *d) +{ + ESCCState *s = ESCC(d); + + escc_reset_chn(&s->chn[0]); + escc_reset_chn(&s->chn[1]); +} + +static inline void set_rxint(ChannelState *s) +{ + s->rxint = 1; + /* XXX: missing daisy chainnig: chn_b rx should have a lower priority + than chn_a rx/tx/special_condition service*/ + s->rxint_under_svc = 1; + if (s->chn == chn_a) { + s->rregs[R_INTR] |= INTR_RXINTA; + if (s->wregs[W_MINTR] & MINTR_STATUSHI) + s->otherchn->rregs[R_IVEC] = IVEC_HIRXINTA; + else + s->otherchn->rregs[R_IVEC] = IVEC_LORXINTA; + } else { + s->otherchn->rregs[R_INTR] |= INTR_RXINTB; + if (s->wregs[W_MINTR] & MINTR_STATUSHI) + s->rregs[R_IVEC] = IVEC_HIRXINTB; + else + s->rregs[R_IVEC] = IVEC_LORXINTB; + } + 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_INTR] & INTR_TXINT) { + s->rregs[R_INTR] |= INTR_TXINTA; + } + 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->wregs[W_INTR] & INTR_TXINT) { + 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 { + s->otherchn->rregs[R_INTR] &= ~INTR_TXINTB; + 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; + trace_escc_update_parameters(CHN_C(s), speed, parity, data_bits, stop_bits); + qemu_chr_fe_ioctl(s->chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp); +} + +static void escc_mem_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + ESCCState *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: + trace_escc_mem_writeb_ctrl(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) { + s->rxint_under_svc = 0; + if (s->txint) { + set_txint(s); + } + } else if (s->txint_under_svc) { + s->txint_under_svc = 0; + } + escc_update_irq(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(DEVICE(serial)); + return; + } + break; + default: + break; + } + if (s->reg == 0) + s->reg = newreg; + else + s->reg = 0; + break; + case SERIAL_DATA: + trace_escc_mem_writeb_data(CHN_C(s), val); + s->tx = val; + if (s->wregs[W_TXCTRL2] & TXCTRL2_TXEN) { // tx enabled + if (s->chr) + qemu_chr_fe_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 uint64_t escc_mem_read(void *opaque, hwaddr addr, + unsigned size) +{ + ESCCState *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: + trace_escc_mem_readb_ctrl(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; + trace_escc_mem_readb_data(CHN_C(s), ret); + if (s->chr) + qemu_chr_accept_input(s->chr); + return ret; + default: + break; + } + return 0; +} + +static const MemoryRegionOps escc_mem_ops = { + .read = escc_mem_read, + .write = escc_mem_write, + .endianness = DEVICE_NATIVE_ENDIAN, + .valid = { + .min_access_size = 1, + .max_access_size = 1, + }, +}; + +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) +{ + trace_escc_serial_receive_byte(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 const VMStateDescription vmstate_escc_chn = { + .name ="escc_chn", + .version_id = 2, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_UINT32(vmstate_dummy, ChannelState), + VMSTATE_UINT32(reg, ChannelState), + VMSTATE_UINT32(rxint, ChannelState), + VMSTATE_UINT32(txint, ChannelState), + VMSTATE_UINT32(rxint_under_svc, ChannelState), + VMSTATE_UINT32(txint_under_svc, ChannelState), + VMSTATE_UINT8(rx, ChannelState), + VMSTATE_UINT8(tx, ChannelState), + VMSTATE_BUFFER(wregs, ChannelState), + VMSTATE_BUFFER(rregs, ChannelState), + VMSTATE_END_OF_LIST() + } +}; + +static const VMStateDescription vmstate_escc = { + .name ="escc", + .version_id = 2, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_STRUCT_ARRAY(chn, ESCCState, 2, 2, vmstate_escc_chn, + ChannelState), + VMSTATE_END_OF_LIST() + } +}; + +MemoryRegion *escc_init(hwaddr base, qemu_irq irqA, qemu_irq irqB, + CharDriverState *chrA, CharDriverState *chrB, + int clock, int it_shift) +{ + DeviceState *dev; + SysBusDevice *s; + ESCCState *d; + + dev = qdev_create(NULL, TYPE_ESCC); + qdev_prop_set_uint32(dev, "disabled", 0); + qdev_prop_set_uint32(dev, "frequency", clock); + qdev_prop_set_uint32(dev, "it_shift", it_shift); + qdev_prop_set_chr(dev, "chrB", chrB); + qdev_prop_set_chr(dev, "chrA", chrA); + qdev_prop_set_uint32(dev, "chnBtype", ser); + qdev_prop_set_uint32(dev, "chnAtype", ser); + qdev_init_nofail(dev); + s = SYS_BUS_DEVICE(dev); + sysbus_connect_irq(s, 0, irqB); + sysbus_connect_irq(s, 1, irqA); + if (base) { + sysbus_mmio_map(s, 0, base); + } + + d = ESCC(s); + return &d->mmio; +} + +static const uint8_t qcode_to_keycode[Q_KEY_CODE_MAX] = { + [Q_KEY_CODE_SHIFT] = 99, + [Q_KEY_CODE_SHIFT_R] = 110, + [Q_KEY_CODE_ALT] = 19, + [Q_KEY_CODE_ALT_R] = 13, + [Q_KEY_CODE_ALTGR] = 13, + [Q_KEY_CODE_CTRL] = 76, + [Q_KEY_CODE_CTRL_R] = 76, + [Q_KEY_CODE_ESC] = 29, + [Q_KEY_CODE_1] = 30, + [Q_KEY_CODE_2] = 31, + [Q_KEY_CODE_3] = 32, + [Q_KEY_CODE_4] = 33, + [Q_KEY_CODE_5] = 34, + [Q_KEY_CODE_6] = 35, + [Q_KEY_CODE_7] = 36, + [Q_KEY_CODE_8] = 37, + [Q_KEY_CODE_9] = 38, + [Q_KEY_CODE_0] = 39, + [Q_KEY_CODE_MINUS] = 40, + [Q_KEY_CODE_EQUAL] = 41, + [Q_KEY_CODE_BACKSPACE] = 43, + [Q_KEY_CODE_TAB] = 53, + [Q_KEY_CODE_Q] = 54, + [Q_KEY_CODE_W] = 55, + [Q_KEY_CODE_E] = 56, + [Q_KEY_CODE_R] = 57, + [Q_KEY_CODE_T] = 58, + [Q_KEY_CODE_Y] = 59, + [Q_KEY_CODE_U] = 60, + [Q_KEY_CODE_I] = 61, + [Q_KEY_CODE_O] = 62, + [Q_KEY_CODE_P] = 63, + [Q_KEY_CODE_BRACKET_LEFT] = 64, + [Q_KEY_CODE_BRACKET_RIGHT] = 65, + [Q_KEY_CODE_RET] = 89, + [Q_KEY_CODE_A] = 77, + [Q_KEY_CODE_S] = 78, + [Q_KEY_CODE_D] = 79, + [Q_KEY_CODE_F] = 80, + [Q_KEY_CODE_G] = 81, + [Q_KEY_CODE_H] = 82, + [Q_KEY_CODE_J] = 83, + [Q_KEY_CODE_K] = 84, + [Q_KEY_CODE_L] = 85, + [Q_KEY_CODE_SEMICOLON] = 86, + [Q_KEY_CODE_APOSTROPHE] = 87, + [Q_KEY_CODE_GRAVE_ACCENT] = 42, + [Q_KEY_CODE_BACKSLASH] = 88, + [Q_KEY_CODE_Z] = 100, + [Q_KEY_CODE_X] = 101, + [Q_KEY_CODE_C] = 102, + [Q_KEY_CODE_V] = 103, + [Q_KEY_CODE_B] = 104, + [Q_KEY_CODE_N] = 105, + [Q_KEY_CODE_M] = 106, + [Q_KEY_CODE_COMMA] = 107, + [Q_KEY_CODE_DOT] = 108, + [Q_KEY_CODE_SLASH] = 109, + [Q_KEY_CODE_ASTERISK] = 47, + [Q_KEY_CODE_SPC] = 121, + [Q_KEY_CODE_CAPS_LOCK] = 119, + [Q_KEY_CODE_F1] = 5, + [Q_KEY_CODE_F2] = 6, + [Q_KEY_CODE_F3] = 8, + [Q_KEY_CODE_F4] = 10, + [Q_KEY_CODE_F5] = 12, + [Q_KEY_CODE_F6] = 14, + [Q_KEY_CODE_F7] = 16, + [Q_KEY_CODE_F8] = 17, + [Q_KEY_CODE_F9] = 18, + [Q_KEY_CODE_F10] = 7, + [Q_KEY_CODE_NUM_LOCK] = 98, + [Q_KEY_CODE_SCROLL_LOCK] = 23, + [Q_KEY_CODE_KP_DIVIDE] = 46, + [Q_KEY_CODE_KP_MULTIPLY] = 47, + [Q_KEY_CODE_KP_SUBTRACT] = 71, + [Q_KEY_CODE_KP_ADD] = 125, + [Q_KEY_CODE_KP_ENTER] = 90, + [Q_KEY_CODE_KP_DECIMAL] = 50, + [Q_KEY_CODE_KP_0] = 94, + [Q_KEY_CODE_KP_1] = 112, + [Q_KEY_CODE_KP_2] = 113, + [Q_KEY_CODE_KP_3] = 114, + [Q_KEY_CODE_KP_4] = 91, + [Q_KEY_CODE_KP_5] = 92, + [Q_KEY_CODE_KP_6] = 93, + [Q_KEY_CODE_KP_7] = 68, + [Q_KEY_CODE_KP_8] = 69, + [Q_KEY_CODE_KP_9] = 70, + [Q_KEY_CODE_LESS] = 124, + [Q_KEY_CODE_F11] = 9, + [Q_KEY_CODE_F12] = 11, + [Q_KEY_CODE_HOME] = 52, + [Q_KEY_CODE_PGUP] = 96, + [Q_KEY_CODE_PGDN] = 123, + [Q_KEY_CODE_END] = 74, + [Q_KEY_CODE_LEFT] = 24, + [Q_KEY_CODE_UP] = 20, + [Q_KEY_CODE_DOWN] = 27, + [Q_KEY_CODE_RIGHT] = 28, + [Q_KEY_CODE_INSERT] = 44, + [Q_KEY_CODE_DELETE] = 66, + [Q_KEY_CODE_STOP] = 1, + [Q_KEY_CODE_AGAIN] = 3, + [Q_KEY_CODE_PROPS] = 25, + [Q_KEY_CODE_UNDO] = 26, + [Q_KEY_CODE_FRONT] = 49, + [Q_KEY_CODE_COPY] = 51, + [Q_KEY_CODE_OPEN] = 72, + [Q_KEY_CODE_PASTE] = 73, + [Q_KEY_CODE_FIND] = 95, + [Q_KEY_CODE_CUT] = 97, + [Q_KEY_CODE_LF] = 111, + [Q_KEY_CODE_HELP] = 118, + [Q_KEY_CODE_META_L] = 120, + [Q_KEY_CODE_META_R] = 122, + [Q_KEY_CODE_COMPOSE] = 67, + [Q_KEY_CODE_PRINT] = 22, + [Q_KEY_CODE_SYSRQ] = 21, +}; + +static void sunkbd_handle_event(DeviceState *dev, QemuConsole *src, + InputEvent *evt) +{ + ChannelState *s = (ChannelState *)dev; + int qcode, keycode; + + assert(evt->kind == INPUT_EVENT_KIND_KEY); + qcode = qemu_input_key_value_to_qcode(evt->key->key); + trace_escc_sunkbd_event_in(qcode, QKeyCode_lookup[qcode], + evt->key->down); + + if (qcode == Q_KEY_CODE_CAPS_LOCK) { + if (evt->key->down) { + s->caps_lock_mode ^= 1; + if (s->caps_lock_mode == 2) { + return; /* Drop second press */ + } + } else { + s->caps_lock_mode ^= 2; + if (s->caps_lock_mode == 3) { + return; /* Drop first release */ + } + } + } + + if (qcode == Q_KEY_CODE_NUM_LOCK) { + if (evt->key->down) { + s->num_lock_mode ^= 1; + if (s->num_lock_mode == 2) { + return; /* Drop second press */ + } + } else { + s->num_lock_mode ^= 2; + if (s->num_lock_mode == 3) { + return; /* Drop first release */ + } + } + } + + keycode = qcode_to_keycode[qcode]; + if (!evt->key->down) { + keycode |= 0x80; + } + trace_escc_sunkbd_event_out(keycode); + put_queue(s, keycode); +} + +static QemuInputHandler sunkbd_handler = { + .name = "sun keyboard", + .mask = INPUT_EVENT_MASK_KEY, + .event = sunkbd_handle_event, +}; + +static void handle_kbd_command(ChannelState *s, int val) +{ + trace_escc_kbd_command(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, 0x21); /* en-us layout */ + break; + default: + break; + } +} + +static void sunmouse_event(void *opaque, + int dx, int dy, int dz, int buttons_state) +{ + ChannelState *s = opaque; + int ch; + + trace_escc_sunmouse_event(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(hwaddr base, qemu_irq irq, + int disabled, int clock, int it_shift) +{ + DeviceState *dev; + SysBusDevice *s; + + dev = qdev_create(NULL, TYPE_ESCC); + qdev_prop_set_uint32(dev, "disabled", disabled); + qdev_prop_set_uint32(dev, "frequency", clock); + qdev_prop_set_uint32(dev, "it_shift", it_shift); + qdev_prop_set_chr(dev, "chrB", NULL); + qdev_prop_set_chr(dev, "chrA", NULL); + qdev_prop_set_uint32(dev, "chnBtype", mouse); + qdev_prop_set_uint32(dev, "chnAtype", kbd); + qdev_init_nofail(dev); + s = SYS_BUS_DEVICE(dev); + sysbus_connect_irq(s, 0, irq); + sysbus_connect_irq(s, 1, irq); + sysbus_mmio_map(s, 0, base); +} + +static int escc_init1(SysBusDevice *dev) +{ + ESCCState *s = ESCC(dev); + unsigned int i; + + s->chn[0].disabled = s->disabled; + s->chn[1].disabled = s->disabled; + for (i = 0; i < 2; i++) { + sysbus_init_irq(dev, &s->chn[i].irq); + s->chn[i].chn = 1 - i; + s->chn[i].clock = s->frequency / 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]; + + memory_region_init_io(&s->mmio, OBJECT(s), &escc_mem_ops, s, "escc", + ESCC_SIZE << s->it_shift); + sysbus_init_mmio(dev, &s->mmio); + + if (s->chn[0].type == mouse) { + qemu_add_mouse_event_handler(sunmouse_event, &s->chn[0], 0, + "QEMU Sun Mouse"); + } + if (s->chn[1].type == kbd) { + s->chn[1].hs = qemu_input_handler_register((DeviceState *)(&s->chn[1]), + &sunkbd_handler); + } + + return 0; +} + +static Property escc_properties[] = { + DEFINE_PROP_UINT32("frequency", ESCCState, frequency, 0), + DEFINE_PROP_UINT32("it_shift", ESCCState, it_shift, 0), + DEFINE_PROP_UINT32("disabled", ESCCState, disabled, 0), + DEFINE_PROP_UINT32("chnBtype", ESCCState, chn[0].type, 0), + DEFINE_PROP_UINT32("chnAtype", ESCCState, chn[1].type, 0), + DEFINE_PROP_CHR("chrB", ESCCState, chn[0].chr), + DEFINE_PROP_CHR("chrA", ESCCState, chn[1].chr), + DEFINE_PROP_END_OF_LIST(), +}; + +static void escc_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); + + k->init = escc_init1; + dc->reset = escc_reset; + dc->vmsd = &vmstate_escc; + dc->props = escc_properties; +} + +static const TypeInfo escc_info = { + .name = TYPE_ESCC, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(ESCCState), + .class_init = escc_class_init, +}; + +static void escc_register_types(void) +{ + type_register_static(&escc_info); +} + +type_init(escc_register_types) |