/* * QEMU PC keyboard emulation * * Copyright (c) 2003 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 "qemu/osdep.h" #include "qemu/error-report.h" #include "qemu/log.h" #include "qemu/timer.h" #include "qapi/error.h" #include "hw/isa/isa.h" #include "migration/vmstate.h" #include "hw/acpi/acpi_aml_interface.h" #include "hw/input/ps2.h" #include "hw/irq.h" #include "hw/input/i8042.h" #include "hw/qdev-properties.h" #include "sysemu/reset.h" #include "sysemu/runstate.h" #include "trace.h" /* Keyboard Controller Commands */ /* Read mode bits */ #define KBD_CCMD_READ_MODE 0x20 /* Write mode bits */ #define KBD_CCMD_WRITE_MODE 0x60 /* Get controller version */ #define KBD_CCMD_GET_VERSION 0xA1 /* Disable mouse interface */ #define KBD_CCMD_MOUSE_DISABLE 0xA7 /* Enable mouse interface */ #define KBD_CCMD_MOUSE_ENABLE 0xA8 /* Mouse interface test */ #define KBD_CCMD_TEST_MOUSE 0xA9 /* Controller self test */ #define KBD_CCMD_SELF_TEST 0xAA /* Keyboard interface test */ #define KBD_CCMD_KBD_TEST 0xAB /* Keyboard interface disable */ #define KBD_CCMD_KBD_DISABLE 0xAD /* Keyboard interface enable */ #define KBD_CCMD_KBD_ENABLE 0xAE /* read input port */ #define KBD_CCMD_READ_INPORT 0xC0 /* read output port */ #define KBD_CCMD_READ_OUTPORT 0xD0 /* write output port */ #define KBD_CCMD_WRITE_OUTPORT 0xD1 #define KBD_CCMD_WRITE_OBUF 0xD2 /* Write to output buffer as if initiated by the auxiliary device */ #define KBD_CCMD_WRITE_AUX_OBUF 0xD3 /* Write the following byte to the mouse */ #define KBD_CCMD_WRITE_MOUSE 0xD4 /* HP vectra only ? */ #define KBD_CCMD_DISABLE_A20 0xDD /* HP vectra only ? */ #define KBD_CCMD_ENABLE_A20 0xDF /* Pulse bits 3-0 of the output port P2. */ #define KBD_CCMD_PULSE_BITS_3_0 0xF0 /* Pulse bit 0 of the output port P2 = CPU reset. */ #define KBD_CCMD_RESET 0xFE /* Pulse no bits of the output port P2. */ #define KBD_CCMD_NO_OP 0xFF /* Status Register Bits */ /* Keyboard output buffer full */ #define KBD_STAT_OBF 0x01 /* Keyboard input buffer full */ #define KBD_STAT_IBF 0x02 /* Self test successful */ #define KBD_STAT_SELFTEST 0x04 /* Last write was a command write (0=data) */ #define KBD_STAT_CMD 0x08 /* Zero if keyboard locked */ #define KBD_STAT_UNLOCKED 0x10 /* Mouse output buffer full */ #define KBD_STAT_MOUSE_OBF 0x20 /* General receive/xmit timeout */ #define KBD_STAT_GTO 0x40 /* Parity error */ #define KBD_STAT_PERR 0x80 /* Controller Mode Register Bits */ /* Keyboard data generate IRQ1 */ #define KBD_MODE_KBD_INT 0x01 /* Mouse data generate IRQ12 */ #define KBD_MODE_MOUSE_INT 0x02 /* The system flag (?) */ #define KBD_MODE_SYS 0x04 /* The keylock doesn't affect the keyboard if set */ #define KBD_MODE_NO_KEYLOCK 0x08 /* Disable keyboard interface */ #define KBD_MODE_DISABLE_KBD 0x10 /* Disable mouse interface */ #define KBD_MODE_DISABLE_MOUSE 0x20 /* Scan code conversion to PC format */ #define KBD_MODE_KCC 0x40 #define KBD_MODE_RFU 0x80 /* Output Port Bits */ #define KBD_OUT_RESET 0x01 /* 1=normal mode, 0=reset */ #define KBD_OUT_A20 0x02 /* x86 only */ #define KBD_OUT_OBF 0x10 /* Keyboard output buffer full */ #define KBD_OUT_MOUSE_OBF 0x20 /* Mouse output buffer full */ /* * OSes typically write 0xdd/0xdf to turn the A20 line off and on. * We make the default value of the outport include these four bits, * so that the subsection is rarely necessary. */ #define KBD_OUT_ONES 0xcc #define KBD_PENDING_KBD_COMPAT 0x01 #define KBD_PENDING_AUX_COMPAT 0x02 #define KBD_PENDING_CTRL_KBD 0x04 #define KBD_PENDING_CTRL_AUX 0x08 #define KBD_PENDING_KBD KBD_MODE_DISABLE_KBD /* 0x10 */ #define KBD_PENDING_AUX KBD_MODE_DISABLE_MOUSE /* 0x20 */ #define KBD_MIGR_TIMER_PENDING 0x1 #define KBD_OBSRC_KBD 0x01 #define KBD_OBSRC_MOUSE 0x02 #define KBD_OBSRC_CTRL 0x04 /* * XXX: not generating the irqs if KBD_MODE_DISABLE_KBD is set may be * incorrect, but it avoids having to simulate exact delays */ static void kbd_update_irq_lines(KBDState *s) { int irq_kbd_level, irq_mouse_level; irq_kbd_level = 0; irq_mouse_level = 0; if (s->status & KBD_STAT_OBF) { if (s->status & KBD_STAT_MOUSE_OBF) { if (s->mode & KBD_MODE_MOUSE_INT) { irq_mouse_level = 1; } } else { if ((s->mode & KBD_MODE_KBD_INT) && !(s->mode & KBD_MODE_DISABLE_KBD)) { irq_kbd_level = 1; } } } qemu_set_irq(s->irqs[I8042_KBD_IRQ], irq_kbd_level); qemu_set_irq(s->irqs[I8042_MOUSE_IRQ], irq_mouse_level); } static void kbd_deassert_irq(KBDState *s) { s->status &= ~(KBD_STAT_OBF | KBD_STAT_MOUSE_OBF); s->outport &= ~(KBD_OUT_OBF | KBD_OUT_MOUSE_OBF); kbd_update_irq_lines(s); } static uint8_t kbd_pending(KBDState *s) { if (s->extended_state) { return s->pending & (~s->mode | ~(KBD_PENDING_KBD | KBD_PENDING_AUX)); } else { return s->pending; } } /* update irq and KBD_STAT_[MOUSE_]OBF */ static void kbd_update_irq(KBDState *s) { uint8_t pending = kbd_pending(s); s->status &= ~(KBD_STAT_OBF | KBD_STAT_MOUSE_OBF); s->outport &= ~(KBD_OUT_OBF | KBD_OUT_MOUSE_OBF); if (pending) { s->status |= KBD_STAT_OBF; s->outport |= KBD_OUT_OBF; if (pending & KBD_PENDING_CTRL_KBD) { s->obsrc = KBD_OBSRC_CTRL; } else if (pending & KBD_PENDING_CTRL_AUX) { s->status |= KBD_STAT_MOUSE_OBF; s->outport |= KBD_OUT_MOUSE_OBF; s->obsrc = KBD_OBSRC_CTRL; } else if (pending & KBD_PENDING_KBD) { s->obsrc = KBD_OBSRC_KBD; } else { s->status |= KBD_STAT_MOUSE_OBF; s->outport |= KBD_OUT_MOUSE_OBF; s->obsrc = KBD_OBSRC_MOUSE; } } kbd_update_irq_lines(s); } static void kbd_safe_update_irq(KBDState *s) { /* * with KBD_STAT_OBF set, a call to kbd_read_data() will eventually call * kbd_update_irq() */ if (s->status & KBD_STAT_OBF) { return; } /* the throttle timer is pending and will call kbd_update_irq() */ if (s->throttle_timer && timer_pending(s->throttle_timer)) { return; } if (kbd_pending(s)) { kbd_update_irq(s); } } static void kbd_update_kbd_irq(void *opaque, int level) { KBDState *s = opaque; if (level) { s->pending |= KBD_PENDING_KBD; } else { s->pending &= ~KBD_PENDING_KBD; } kbd_safe_update_irq(s); } static void kbd_update_aux_irq(void *opaque, int level) { KBDState *s = opaque; if (level) { s->pending |= KBD_PENDING_AUX; } else { s->pending &= ~KBD_PENDING_AUX; } kbd_safe_update_irq(s); } static void kbd_throttle_timeout(void *opaque) { KBDState *s = opaque; if (kbd_pending(s)) { kbd_update_irq(s); } } static uint64_t kbd_read_status(void *opaque, hwaddr addr, unsigned size) { KBDState *s = opaque; int val; val = s->status; trace_pckbd_kbd_read_status(val); return val; } static void kbd_queue(KBDState *s, int b, int aux) { if (s->extended_state) { s->cbdata = b; s->pending &= ~KBD_PENDING_CTRL_KBD & ~KBD_PENDING_CTRL_AUX; s->pending |= aux ? KBD_PENDING_CTRL_AUX : KBD_PENDING_CTRL_KBD; kbd_safe_update_irq(s); } else { ps2_queue(aux ? PS2_DEVICE(&s->ps2mouse) : PS2_DEVICE(&s->ps2kbd), b); } } static uint8_t kbd_dequeue(KBDState *s) { uint8_t b = s->cbdata; s->pending &= ~KBD_PENDING_CTRL_KBD & ~KBD_PENDING_CTRL_AUX; if (kbd_pending(s)) { kbd_update_irq(s); } return b; } static void outport_write(KBDState *s, uint32_t val) { trace_pckbd_outport_write(val); s->outport = val; qemu_set_irq(s->a20_out, (val >> 1) & 1); if (!(val & 1)) { qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); } } static void kbd_write_command(void *opaque, hwaddr addr, uint64_t val, unsigned size) { KBDState *s = opaque; trace_pckbd_kbd_write_command(val); /* * Bits 3-0 of the output port P2 of the keyboard controller may be pulsed * low for approximately 6 micro seconds. Bits 3-0 of the KBD_CCMD_PULSE * command specify the output port bits to be pulsed. * 0: Bit should be pulsed. 1: Bit should not be modified. * The only useful version of this command is pulsing bit 0, * which does a CPU reset. */ if ((val & KBD_CCMD_PULSE_BITS_3_0) == KBD_CCMD_PULSE_BITS_3_0) { if (!(val & 1)) { val = KBD_CCMD_RESET; } else { val = KBD_CCMD_NO_OP; } } switch (val) { case KBD_CCMD_READ_MODE: kbd_queue(s, s->mode, 0); break; case KBD_CCMD_WRITE_MODE: case KBD_CCMD_WRITE_OBUF: case KBD_CCMD_WRITE_AUX_OBUF: case KBD_CCMD_WRITE_MOUSE: case KBD_CCMD_WRITE_OUTPORT: s->write_cmd = val; break; case KBD_CCMD_MOUSE_DISABLE: s->mode |= KBD_MODE_DISABLE_MOUSE; break; case KBD_CCMD_MOUSE_ENABLE: s->mode &= ~KBD_MODE_DISABLE_MOUSE; kbd_safe_update_irq(s); break; case KBD_CCMD_TEST_MOUSE: kbd_queue(s, 0x00, 0); break; case KBD_CCMD_SELF_TEST: s->status |= KBD_STAT_SELFTEST; kbd_queue(s, 0x55, 0); break; case KBD_CCMD_KBD_TEST: kbd_queue(s, 0x00, 0); break; case KBD_CCMD_KBD_DISABLE: s->mode |= KBD_MODE_DISABLE_KBD; break; case KBD_CCMD_KBD_ENABLE: s->mode &= ~KBD_MODE_DISABLE_KBD; kbd_safe_update_irq(s); break; case KBD_CCMD_READ_INPORT: kbd_queue(s, 0x80, 0); break; case KBD_CCMD_READ_OUTPORT: kbd_queue(s, s->outport, 0); break; case KBD_CCMD_ENABLE_A20: qemu_irq_raise(s->a20_out); s->outport |= KBD_OUT_A20; break; case KBD_CCMD_DISABLE_A20: qemu_irq_lower(s->a20_out); s->outport &= ~KBD_OUT_A20; break; case KBD_CCMD_RESET: qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); break; case KBD_CCMD_NO_OP: /* ignore that */ break; default: qemu_log_mask(LOG_GUEST_ERROR, "unsupported keyboard cmd=0x%02" PRIx64 "\n", val); break; } } static uint64_t kbd_read_data(void *opaque, hwaddr addr, unsigned size) { KBDState *s = opaque; if (s->status & KBD_STAT_OBF) { kbd_deassert_irq(s); if (s->obsrc & KBD_OBSRC_KBD) { if (s->throttle_timer) { timer_mod(s->throttle_timer, qemu_clock_get_us(QEMU_CLOCK_VIRTUAL) + 1000); } s->obdata = ps2_read_data(PS2_DEVICE(&s->ps2kbd)); } else if (s->obsrc & KBD_OBSRC_MOUSE) { s->obdata = ps2_read_data(PS2_DEVICE(&s->ps2mouse)); } else if (s->obsrc & KBD_OBSRC_CTRL) { s->obdata = kbd_dequeue(s); } } trace_pckbd_kbd_read_data(s->obdata); return s->obdata; } static void kbd_write_data(void *opaque, hwaddr addr, uint64_t val, unsigned size) { KBDState *s = opaque; trace_pckbd_kbd_write_data(val); switch (s->write_cmd) { case 0: ps2_write_keyboard(&s->ps2kbd, val); /* sending data to the keyboard reenables PS/2 communication */ s->mode &= ~KBD_MODE_DISABLE_KBD; kbd_safe_update_irq(s); break; case KBD_CCMD_WRITE_MODE: s->mode = val; ps2_keyboard_set_translation(&s->ps2kbd, (s->mode & KBD_MODE_KCC) != 0); /* * a write to the mode byte interrupt enable flags directly updates * the irq lines */ kbd_update_irq_lines(s); /* * a write to the mode byte disable interface flags may raise * an irq if there is pending data in the PS/2 queues. */ kbd_safe_update_irq(s); break; case KBD_CCMD_WRITE_OBUF: kbd_queue(s, val, 0); break; case KBD_CCMD_WRITE_AUX_OBUF: kbd_queue(s, val, 1); break; case KBD_CCMD_WRITE_OUTPORT: outport_write(s, val); break; case KBD_CCMD_WRITE_MOUSE: ps2_write_mouse(&s->ps2mouse, val); /* sending data to the mouse reenables PS/2 communication */ s->mode &= ~KBD_MODE_DISABLE_MOUSE; kbd_safe_update_irq(s); break; default: break; } s->write_cmd = 0; } static void kbd_reset(void *opaque) { KBDState *s = opaque; s->mode = KBD_MODE_KBD_INT | KBD_MODE_MOUSE_INT; s->status = KBD_STAT_CMD | KBD_STAT_UNLOCKED; s->outport = KBD_OUT_RESET | KBD_OUT_A20 | KBD_OUT_ONES; s->pending = 0; kbd_deassert_irq(s); if (s->throttle_timer) { timer_del(s->throttle_timer); } } static uint8_t kbd_outport_default(KBDState *s) { return KBD_OUT_RESET | KBD_OUT_A20 | KBD_OUT_ONES | (s->status & KBD_STAT_OBF ? KBD_OUT_OBF : 0) | (s->status & KBD_STAT_MOUSE_OBF ? KBD_OUT_MOUSE_OBF : 0); } static int kbd_outport_post_load(void *opaque, int version_id) { KBDState *s = opaque; s->outport_present = true; return 0; } static bool kbd_outport_needed(void *opaque) { KBDState *s = opaque; return s->outport != kbd_outport_default(s); } static const VMStateDescription vmstate_kbd_outport = { .name = "pckbd_outport", .version_id = 1, .minimum_version_id = 1, .post_load = kbd_outport_post_load, .needed = kbd_outport_needed, .fields = (const VMStateField[]) { VMSTATE_UINT8(outport, KBDState), VMSTATE_END_OF_LIST() } }; static int kbd_extended_state_pre_save(void *opaque) { KBDState *s = opaque; s->migration_flags = 0; if (s->throttle_timer && timer_pending(s->throttle_timer)) { s->migration_flags |= KBD_MIGR_TIMER_PENDING; } return 0; } static int kbd_extended_state_post_load(void *opaque, int version_id) { KBDState *s = opaque; if (s->migration_flags & KBD_MIGR_TIMER_PENDING) { kbd_throttle_timeout(s); } s->extended_state_loaded = true; return 0; } static bool kbd_extended_state_needed(void *opaque) { KBDState *s = opaque; return s->extended_state; } static const VMStateDescription vmstate_kbd_extended_state = { .name = "pckbd/extended_state", .post_load = kbd_extended_state_post_load, .pre_save = kbd_extended_state_pre_save, .needed = kbd_extended_state_needed, .fields = (const VMStateField[]) { VMSTATE_UINT32(migration_flags, KBDState), VMSTATE_UINT32(obsrc, KBDState), VMSTATE_UINT8(obdata, KBDState), VMSTATE_UINT8(cbdata, KBDState), VMSTATE_END_OF_LIST() } }; static int kbd_pre_save(void *opaque) { KBDState *s = opaque; if (s->extended_state) { s->pending_tmp = s->pending; } else { s->pending_tmp = 0; if (s->pending & KBD_PENDING_KBD) { s->pending_tmp |= KBD_PENDING_KBD_COMPAT; } if (s->pending & KBD_PENDING_AUX) { s->pending_tmp |= KBD_PENDING_AUX_COMPAT; } } return 0; } static int kbd_pre_load(void *opaque) { KBDState *s = opaque; s->outport_present = false; s->extended_state_loaded = false; return 0; } static int kbd_post_load(void *opaque, int version_id) { KBDState *s = opaque; if (!s->outport_present) { s->outport = kbd_outport_default(s); } s->pending = s->pending_tmp; if (!s->extended_state_loaded) { s->obsrc = s->status & KBD_STAT_OBF ? (s->status & KBD_STAT_MOUSE_OBF ? KBD_OBSRC_MOUSE : KBD_OBSRC_KBD) : 0; if (s->pending & KBD_PENDING_KBD_COMPAT) { s->pending |= KBD_PENDING_KBD; } if (s->pending & KBD_PENDING_AUX_COMPAT) { s->pending |= KBD_PENDING_AUX; } } /* clear all unused flags */ s->pending &= KBD_PENDING_CTRL_KBD | KBD_PENDING_CTRL_AUX | KBD_PENDING_KBD | KBD_PENDING_AUX; return 0; } static const VMStateDescription vmstate_kbd = { .name = "pckbd", .version_id = 3, .minimum_version_id = 3, .pre_load = kbd_pre_load, .post_load = kbd_post_load, .pre_save = kbd_pre_save, .fields = (const VMStateField[]) { VMSTATE_UINT8(write_cmd, KBDState), VMSTATE_UINT8(status, KBDState), VMSTATE_UINT8(mode, KBDState), VMSTATE_UINT8(pending_tmp, KBDState), VMSTATE_END_OF_LIST() }, .subsections = (const VMStateDescription * const []) { &vmstate_kbd_outport, &vmstate_kbd_extended_state, NULL } }; /* Memory mapped interface */ static uint64_t kbd_mm_readfn(void *opaque, hwaddr addr, unsigned size) { KBDState *s = opaque; if (addr & s->mask) { return kbd_read_status(s, 0, 1) & 0xff; } else { return kbd_read_data(s, 0, 1) & 0xff; } } static void kbd_mm_writefn(void *opaque, hwaddr addr, uint64_t value, unsigned size) { KBDState *s = opaque; if (addr & s->mask) { kbd_write_command(s, 0, value & 0xff, 1); } else { kbd_write_data(s, 0, value & 0xff, 1); } } static const MemoryRegionOps i8042_mmio_ops = { .read = kbd_mm_readfn, .write = kbd_mm_writefn, .valid.min_access_size = 1, .valid.max_access_size = 4, .endianness = DEVICE_NATIVE_ENDIAN, }; static void i8042_mmio_set_kbd_irq(void *opaque, int n, int level) { MMIOKBDState *s = I8042_MMIO(opaque); KBDState *ks = &s->kbd; kbd_update_kbd_irq(ks, level); } static void i8042_mmio_set_mouse_irq(void *opaque, int n, int level) { MMIOKBDState *s = I8042_MMIO(opaque); KBDState *ks = &s->kbd; kbd_update_aux_irq(ks, level); } static void i8042_mmio_reset(DeviceState *dev) { MMIOKBDState *s = I8042_MMIO(dev); KBDState *ks = &s->kbd; kbd_reset(ks); } static void i8042_mmio_realize(DeviceState *dev, Error **errp) { MMIOKBDState *s = I8042_MMIO(dev); KBDState *ks = &s->kbd; memory_region_init_io(&s->region, OBJECT(dev), &i8042_mmio_ops, ks, "i8042", s->size); sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->region); if (!sysbus_realize(SYS_BUS_DEVICE(&ks->ps2kbd), errp)) { return; } if (!sysbus_realize(SYS_BUS_DEVICE(&ks->ps2mouse), errp)) { return; } qdev_connect_gpio_out(DEVICE(&ks->ps2kbd), PS2_DEVICE_IRQ, qdev_get_gpio_in_named(dev, "ps2-kbd-input-irq", 0)); qdev_connect_gpio_out(DEVICE(&ks->ps2mouse), PS2_DEVICE_IRQ, qdev_get_gpio_in_named(dev, "ps2-mouse-input-irq", 0)); } static void i8042_mmio_init(Object *obj) { MMIOKBDState *s = I8042_MMIO(obj); KBDState *ks = &s->kbd; ks->extended_state = true; object_initialize_child(obj, "ps2kbd", &ks->ps2kbd, TYPE_PS2_KBD_DEVICE); object_initialize_child(obj, "ps2mouse", &ks->ps2mouse, TYPE_PS2_MOUSE_DEVICE); qdev_init_gpio_out(DEVICE(obj), ks->irqs, 2); qdev_init_gpio_in_named(DEVICE(obj), i8042_mmio_set_kbd_irq, "ps2-kbd-input-irq", 1); qdev_init_gpio_in_named(DEVICE(obj), i8042_mmio_set_mouse_irq, "ps2-mouse-input-irq", 1); } static const Property i8042_mmio_properties[] = { DEFINE_PROP_UINT64("mask", MMIOKBDState, kbd.mask, UINT64_MAX), DEFINE_PROP_UINT32("size", MMIOKBDState, size, -1), DEFINE_PROP_END_OF_LIST(), }; static const VMStateDescription vmstate_kbd_mmio = { .name = "pckbd-mmio", .version_id = 1, .minimum_version_id = 1, .fields = (const VMStateField[]) { VMSTATE_STRUCT(kbd, MMIOKBDState, 0, vmstate_kbd, KBDState), VMSTATE_END_OF_LIST() } }; static void i8042_mmio_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->realize = i8042_mmio_realize; device_class_set_legacy_reset(dc, i8042_mmio_reset); dc->vmsd = &vmstate_kbd_mmio; device_class_set_props(dc, i8042_mmio_properties); set_bit(DEVICE_CATEGORY_INPUT, dc->categories); } static const TypeInfo i8042_mmio_info = { .name = TYPE_I8042_MMIO, .parent = TYPE_SYS_BUS_DEVICE, .instance_init = i8042_mmio_init, .instance_size = sizeof(MMIOKBDState), .class_init = i8042_mmio_class_init }; void i8042_isa_mouse_fake_event(ISAKBDState *isa) { KBDState *s = &isa->kbd; ps2_mouse_fake_event(&s->ps2mouse); } static const VMStateDescription vmstate_kbd_isa = { .name = "pckbd", .version_id = 3, .minimum_version_id = 3, .fields = (const VMStateField[]) { VMSTATE_STRUCT(kbd, ISAKBDState, 0, vmstate_kbd, KBDState), VMSTATE_END_OF_LIST() } }; static const MemoryRegionOps i8042_data_ops = { .read = kbd_read_data, .write = kbd_write_data, .impl = { .min_access_size = 1, .max_access_size = 1, }, .endianness = DEVICE_LITTLE_ENDIAN, }; static const MemoryRegionOps i8042_cmd_ops = { .read = kbd_read_status, .write = kbd_write_command, .impl = { .min_access_size = 1, .max_access_size = 1, }, .endianness = DEVICE_LITTLE_ENDIAN, }; static void i8042_set_kbd_irq(void *opaque, int n, int level) { ISAKBDState *s = I8042(opaque); KBDState *ks = &s->kbd; kbd_update_kbd_irq(ks, level); } static void i8042_set_mouse_irq(void *opaque, int n, int level) { ISAKBDState *s = I8042(opaque); KBDState *ks = &s->kbd; kbd_update_aux_irq(ks, level); } static void i8042_reset(DeviceState *dev) { ISAKBDState *s = I8042(dev); KBDState *ks = &s->kbd; kbd_reset(ks); } static void i8042_initfn(Object *obj) { ISAKBDState *isa_s = I8042(obj); KBDState *s = &isa_s->kbd; memory_region_init_io(isa_s->io + 0, obj, &i8042_data_ops, s, "i8042-data", 1); memory_region_init_io(isa_s->io + 1, obj, &i8042_cmd_ops, s, "i8042-cmd", 1); object_initialize_child(obj, "ps2kbd", &s->ps2kbd, TYPE_PS2_KBD_DEVICE); object_initialize_child(obj, "ps2mouse", &s->ps2mouse, TYPE_PS2_MOUSE_DEVICE); qdev_init_gpio_out_named(DEVICE(obj), &s->a20_out, I8042_A20_LINE, 1); qdev_init_gpio_out(DEVICE(obj), s->irqs, 2); qdev_init_gpio_in_named(DEVICE(obj), i8042_set_kbd_irq, "ps2-kbd-input-irq", 1); qdev_init_gpio_in_named(DEVICE(obj), i8042_set_mouse_irq, "ps2-mouse-input-irq", 1); } static void i8042_realizefn(DeviceState *dev, Error **errp) { ISADevice *isadev = ISA_DEVICE(dev); ISAKBDState *isa_s = I8042(dev); KBDState *s = &isa_s->kbd; if (isa_s->kbd_irq >= ISA_NUM_IRQS) { error_setg(errp, "Maximum value for \"kbd-irq\" is: %u", ISA_NUM_IRQS - 1); return; } if (isa_s->mouse_irq >= ISA_NUM_IRQS) { error_setg(errp, "Maximum value for \"mouse-irq\" is: %u", ISA_NUM_IRQS - 1); return; } isa_connect_gpio_out(isadev, I8042_KBD_IRQ, isa_s->kbd_irq); isa_connect_gpio_out(isadev, I8042_MOUSE_IRQ, isa_s->mouse_irq); isa_register_ioport(isadev, isa_s->io + 0, 0x60); isa_register_ioport(isadev, isa_s->io + 1, 0x64); if (!sysbus_realize(SYS_BUS_DEVICE(&s->ps2kbd), errp)) { return; } qdev_connect_gpio_out(DEVICE(&s->ps2kbd), PS2_DEVICE_IRQ, qdev_get_gpio_in_named(dev, "ps2-kbd-input-irq", 0)); if (!sysbus_realize(SYS_BUS_DEVICE(&s->ps2mouse), errp)) { return; } qdev_connect_gpio_out(DEVICE(&s->ps2mouse), PS2_DEVICE_IRQ, qdev_get_gpio_in_named(dev, "ps2-mouse-input-irq", 0)); if (isa_s->kbd_throttle && !isa_s->kbd.extended_state) { warn_report(TYPE_I8042 ": can't enable kbd-throttle without" " extended-state, disabling kbd-throttle"); } else if (isa_s->kbd_throttle) { s->throttle_timer = timer_new_us(QEMU_CLOCK_VIRTUAL, kbd_throttle_timeout, s); } } static void i8042_build_aml(AcpiDevAmlIf *adev, Aml *scope) { ISAKBDState *isa_s = I8042(adev); Aml *kbd; Aml *mou; Aml *crs; crs = aml_resource_template(); aml_append(crs, aml_io(AML_DECODE16, 0x0060, 0x0060, 0x01, 0x01)); aml_append(crs, aml_io(AML_DECODE16, 0x0064, 0x0064, 0x01, 0x01)); aml_append(crs, aml_irq_no_flags(isa_s->kbd_irq)); kbd = aml_device("KBD"); aml_append(kbd, aml_name_decl("_HID", aml_eisaid("PNP0303"))); aml_append(kbd, aml_name_decl("_STA", aml_int(0xf))); aml_append(kbd, aml_name_decl("_CRS", crs)); crs = aml_resource_template(); aml_append(crs, aml_irq_no_flags(isa_s->mouse_irq)); mou = aml_device("MOU"); aml_append(mou, aml_name_decl("_HID", aml_eisaid("PNP0F13"))); aml_append(mou, aml_name_decl("_STA", aml_int(0xf))); aml_append(mou, aml_name_decl("_CRS", crs)); aml_append(scope, kbd); aml_append(scope, mou); } static const Property i8042_properties[] = { DEFINE_PROP_BOOL("extended-state", ISAKBDState, kbd.extended_state, true), DEFINE_PROP_BOOL("kbd-throttle", ISAKBDState, kbd_throttle, false), DEFINE_PROP_UINT8("kbd-irq", ISAKBDState, kbd_irq, 1), DEFINE_PROP_UINT8("mouse-irq", ISAKBDState, mouse_irq, 12), DEFINE_PROP_END_OF_LIST(), }; static void i8042_class_initfn(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); AcpiDevAmlIfClass *adevc = ACPI_DEV_AML_IF_CLASS(klass); device_class_set_props(dc, i8042_properties); device_class_set_legacy_reset(dc, i8042_reset); dc->realize = i8042_realizefn; dc->vmsd = &vmstate_kbd_isa; adevc->build_dev_aml = i8042_build_aml; set_bit(DEVICE_CATEGORY_INPUT, dc->categories); } static const TypeInfo i8042_info = { .name = TYPE_I8042, .parent = TYPE_ISA_DEVICE, .instance_size = sizeof(ISAKBDState), .instance_init = i8042_initfn, .class_init = i8042_class_initfn, .interfaces = (InterfaceInfo[]) { { TYPE_ACPI_DEV_AML_IF }, { }, }, }; static void i8042_register_types(void) { type_register_static(&i8042_info); type_register_static(&i8042_mmio_info); } type_init(i8042_register_types)