/* * QEMU PS/2 keyboard/mouse 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/log.h" #include "hw/hw.h" #include "hw/input/ps2.h" #include "ui/console.h" #include "ui/input.h" #include "sysemu/sysemu.h" #include "trace.h" /* debug PC keyboard */ //#define DEBUG_KBD /* debug PC keyboard : only mouse */ //#define DEBUG_MOUSE /* Keyboard Commands */ #define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */ #define KBD_CMD_ECHO 0xEE #define KBD_CMD_SCANCODE 0xF0 /* Get/set scancode set */ #define KBD_CMD_GET_ID 0xF2 /* get keyboard ID */ #define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */ #define KBD_CMD_ENABLE 0xF4 /* Enable scanning */ #define KBD_CMD_RESET_DISABLE 0xF5 /* reset and disable scanning */ #define KBD_CMD_RESET_ENABLE 0xF6 /* reset and enable scanning */ #define KBD_CMD_RESET 0xFF /* Reset */ /* Keyboard Replies */ #define KBD_REPLY_POR 0xAA /* Power on reset */ #define KBD_REPLY_ID 0xAB /* Keyboard ID */ #define KBD_REPLY_ACK 0xFA /* Command ACK */ #define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */ /* Mouse Commands */ #define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */ #define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */ #define AUX_SET_RES 0xE8 /* Set resolution */ #define AUX_GET_SCALE 0xE9 /* Get scaling factor */ #define AUX_SET_STREAM 0xEA /* Set stream mode */ #define AUX_POLL 0xEB /* Poll */ #define AUX_RESET_WRAP 0xEC /* Reset wrap mode */ #define AUX_SET_WRAP 0xEE /* Set wrap mode */ #define AUX_SET_REMOTE 0xF0 /* Set remote mode */ #define AUX_GET_TYPE 0xF2 /* Get type */ #define AUX_SET_SAMPLE 0xF3 /* Set sample rate */ #define AUX_ENABLE_DEV 0xF4 /* Enable aux device */ #define AUX_DISABLE_DEV 0xF5 /* Disable aux device */ #define AUX_SET_DEFAULT 0xF6 #define AUX_RESET 0xFF /* Reset aux device */ #define AUX_ACK 0xFA /* Command byte ACK. */ #define MOUSE_STATUS_REMOTE 0x40 #define MOUSE_STATUS_ENABLED 0x20 #define MOUSE_STATUS_SCALE21 0x10 #define PS2_QUEUE_SIZE 16 /* Buffer size required by PS/2 protocol */ /* Bits for 'modifiers' field in PS2KbdState */ #define MOD_CTRL_L (1 << 0) #define MOD_SHIFT_L (1 << 1) #define MOD_ALT_L (1 << 2) #define MOD_CTRL_R (1 << 3) #define MOD_SHIFT_R (1 << 4) #define MOD_ALT_R (1 << 5) typedef struct { /* Keep the data array 256 bytes long, which compatibility with older qemu versions. */ uint8_t data[256]; int rptr, wptr, count; } PS2Queue; struct PS2State { PS2Queue queue; int32_t write_cmd; void (*update_irq)(void *, int); void *update_arg; }; typedef struct { PS2State common; int scan_enabled; int translate; int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */ int ledstate; bool need_high_bit; unsigned int modifiers; /* bitmask of MOD_* constants above */ } PS2KbdState; typedef struct { PS2State common; uint8_t mouse_status; uint8_t mouse_resolution; uint8_t mouse_sample_rate; uint8_t mouse_wrap; uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */ uint8_t mouse_detect_state; int mouse_dx; /* current values, needed for 'poll' mode */ int mouse_dy; int mouse_dz; uint8_t mouse_buttons; } PS2MouseState; static uint8_t translate_table[256] = { 0xff, 0x43, 0x41, 0x3f, 0x3d, 0x3b, 0x3c, 0x58, 0x64, 0x44, 0x42, 0x40, 0x3e, 0x0f, 0x29, 0x59, 0x65, 0x38, 0x2a, 0x70, 0x1d, 0x10, 0x02, 0x5a, 0x66, 0x71, 0x2c, 0x1f, 0x1e, 0x11, 0x03, 0x5b, 0x67, 0x2e, 0x2d, 0x20, 0x12, 0x05, 0x04, 0x5c, 0x68, 0x39, 0x2f, 0x21, 0x14, 0x13, 0x06, 0x5d, 0x69, 0x31, 0x30, 0x23, 0x22, 0x15, 0x07, 0x5e, 0x6a, 0x72, 0x32, 0x24, 0x16, 0x08, 0x09, 0x5f, 0x6b, 0x33, 0x25, 0x17, 0x18, 0x0b, 0x0a, 0x60, 0x6c, 0x34, 0x35, 0x26, 0x27, 0x19, 0x0c, 0x61, 0x6d, 0x73, 0x28, 0x74, 0x1a, 0x0d, 0x62, 0x6e, 0x3a, 0x36, 0x1c, 0x1b, 0x75, 0x2b, 0x63, 0x76, 0x55, 0x56, 0x77, 0x78, 0x79, 0x7a, 0x0e, 0x7b, 0x7c, 0x4f, 0x7d, 0x4b, 0x47, 0x7e, 0x7f, 0x6f, 0x52, 0x53, 0x50, 0x4c, 0x4d, 0x48, 0x01, 0x45, 0x57, 0x4e, 0x51, 0x4a, 0x37, 0x49, 0x46, 0x54, 0x80, 0x81, 0x82, 0x41, 0x54, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, }; static unsigned int ps2_modifier_bit(QKeyCode key) { switch (key) { case Q_KEY_CODE_CTRL: return MOD_CTRL_L; case Q_KEY_CODE_CTRL_R: return MOD_CTRL_R; case Q_KEY_CODE_SHIFT: return MOD_SHIFT_L; case Q_KEY_CODE_SHIFT_R: return MOD_SHIFT_R; case Q_KEY_CODE_ALT: return MOD_ALT_L; case Q_KEY_CODE_ALT_R: return MOD_ALT_R; default: return 0; } } static void ps2_reset_queue(PS2State *s) { PS2Queue *q = &s->queue; q->rptr = 0; q->wptr = 0; q->count = 0; } void ps2_queue(PS2State *s, int b) { PS2Queue *q = &s->queue; if (q->count >= PS2_QUEUE_SIZE - 1) return; q->data[q->wptr] = b; if (++q->wptr == PS2_QUEUE_SIZE) q->wptr = 0; q->count++; s->update_irq(s->update_arg, 1); } /* keycode is the untranslated scancode in the current scancode set. */ static void ps2_put_keycode(void *opaque, int keycode) { PS2KbdState *s = opaque; trace_ps2_put_keycode(opaque, keycode); qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER); if (s->translate) { if (keycode == 0xf0) { s->need_high_bit = true; } else if (s->need_high_bit) { ps2_queue(&s->common, translate_table[keycode] | 0x80); s->need_high_bit = false; } else { ps2_queue(&s->common, translate_table[keycode]); } } else { ps2_queue(&s->common, keycode); } } static void ps2_keyboard_event(DeviceState *dev, QemuConsole *src, InputEvent *evt) { PS2KbdState *s = (PS2KbdState *)dev; InputKeyEvent *key = evt->u.key.data; int qcode; uint16_t keycode = 0; int mod; qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER); assert(evt->type == INPUT_EVENT_KIND_KEY); qcode = qemu_input_key_value_to_qcode(key->key); mod = ps2_modifier_bit(qcode); trace_ps2_keyboard_event(s, qcode, key->down, mod, s->modifiers); if (key->down) { s->modifiers |= mod; } else { s->modifiers &= ~mod; } if (s->scancode_set == 1) { if (qcode == Q_KEY_CODE_PAUSE) { if (s->modifiers & (MOD_CTRL_L | MOD_CTRL_R)) { if (key->down) { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x46); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xc6); } } else { if (key->down) { ps2_put_keycode(s, 0xe1); ps2_put_keycode(s, 0x1d); ps2_put_keycode(s, 0x45); ps2_put_keycode(s, 0xe1); ps2_put_keycode(s, 0x9d); ps2_put_keycode(s, 0xc5); } } } else if (qcode == Q_KEY_CODE_PRINT) { if (s->modifiers & MOD_ALT_L) { if (key->down) { ps2_put_keycode(s, 0xb8); ps2_put_keycode(s, 0x38); ps2_put_keycode(s, 0x54); } else { ps2_put_keycode(s, 0xd4); ps2_put_keycode(s, 0xb8); ps2_put_keycode(s, 0x38); } } else if (s->modifiers & MOD_ALT_R) { if (key->down) { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xb8); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x38); ps2_put_keycode(s, 0x54); } else { ps2_put_keycode(s, 0xd4); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xb8); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x38); } } else if (s->modifiers & (MOD_SHIFT_L | MOD_CTRL_L | MOD_SHIFT_R | MOD_CTRL_R)) { if (key->down) { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x37); } else { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xb7); } } else { if (key->down) { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x2a); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x37); } else { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xb7); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xaa); } } } else { if (qcode < qemu_input_map_qcode_to_atset1_len) keycode = qemu_input_map_qcode_to_atset1[qcode]; if (keycode) { if (keycode & 0xff00) { ps2_put_keycode(s, keycode >> 8); } if (!key->down) { keycode |= 0x80; } ps2_put_keycode(s, keycode & 0xff); } else { qemu_log_mask(LOG_UNIMP, "ps2: ignoring key with qcode %d\n", qcode); } } } else if (s->scancode_set == 2) { if (qcode == Q_KEY_CODE_PAUSE) { if (s->modifiers & (MOD_CTRL_L | MOD_CTRL_R)) { if (key->down) { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x7e); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x7e); } } else { if (key->down) { ps2_put_keycode(s, 0xe1); ps2_put_keycode(s, 0x14); ps2_put_keycode(s, 0x77); ps2_put_keycode(s, 0xe1); ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x14); ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x77); } } } else if (qcode == Q_KEY_CODE_PRINT) { if (s->modifiers & MOD_ALT_L) { if (key->down) { ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x11); ps2_put_keycode(s, 0x11); ps2_put_keycode(s, 0x84); } else { ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x84); ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x11); ps2_put_keycode(s, 0x11); } } else if (s->modifiers & MOD_ALT_R) { if (key->down) { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x11); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x11); ps2_put_keycode(s, 0x84); } else { ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x84); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x11); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x11); } } else if (s->modifiers & (MOD_SHIFT_L | MOD_CTRL_L | MOD_SHIFT_R | MOD_CTRL_R)) { if (key->down) { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x7c); } else { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x7c); } } else { if (key->down) { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x12); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0x7c); } else { ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x7c); ps2_put_keycode(s, 0xe0); ps2_put_keycode(s, 0xf0); ps2_put_keycode(s, 0x12); } } } else { if (qcode < qemu_input_map_qcode_to_atset2_len) keycode = qemu_input_map_qcode_to_atset2[qcode]; if (keycode) { if (keycode & 0xff00) { ps2_put_keycode(s, keycode >> 8); } if (!key->down) { ps2_put_keycode(s, 0xf0); } ps2_put_keycode(s, keycode & 0xff); } else { qemu_log_mask(LOG_UNIMP, "ps2: ignoring key with qcode %d\n", qcode); } } } else if (s->scancode_set == 3) { if (qcode < qemu_input_map_qcode_to_atset3_len) keycode = qemu_input_map_qcode_to_atset3[qcode]; if (keycode) { /* FIXME: break code should be configured on a key by key basis */ if (!key->down) { ps2_put_keycode(s, 0xf0); } ps2_put_keycode(s, keycode); } else { qemu_log_mask(LOG_UNIMP, "ps2: ignoring key with qcode %d\n", qcode); } } } uint32_t ps2_read_data(PS2State *s) { PS2Queue *q; int val, index; trace_ps2_read_data(s); q = &s->queue; if (q->count == 0) { /* NOTE: if no data left, we return the last keyboard one (needed for EMM386) */ /* XXX: need a timer to do things correctly */ index = q->rptr - 1; if (index < 0) index = PS2_QUEUE_SIZE - 1; val = q->data[index]; } else { val = q->data[q->rptr]; if (++q->rptr == PS2_QUEUE_SIZE) q->rptr = 0; q->count--; /* reading deasserts IRQ */ s->update_irq(s->update_arg, 0); /* reassert IRQs if data left */ s->update_irq(s->update_arg, q->count != 0); } return val; } static void ps2_set_ledstate(PS2KbdState *s, int ledstate) { trace_ps2_set_ledstate(s, ledstate); s->ledstate = ledstate; kbd_put_ledstate(ledstate); } static void ps2_reset_keyboard(PS2KbdState *s) { trace_ps2_reset_keyboard(s); s->scan_enabled = 1; s->scancode_set = 2; ps2_reset_queue(&s->common); ps2_set_ledstate(s, 0); } void ps2_write_keyboard(void *opaque, int val) { PS2KbdState *s = (PS2KbdState *)opaque; trace_ps2_write_keyboard(opaque, val); switch(s->common.write_cmd) { default: case -1: switch(val) { case 0x00: ps2_queue(&s->common, KBD_REPLY_ACK); break; case 0x05: ps2_queue(&s->common, KBD_REPLY_RESEND); break; case KBD_CMD_GET_ID: ps2_queue(&s->common, KBD_REPLY_ACK); /* We emulate a MF2 AT keyboard here */ ps2_queue(&s->common, KBD_REPLY_ID); if (s->translate) ps2_queue(&s->common, 0x41); else ps2_queue(&s->common, 0x83); break; case KBD_CMD_ECHO: ps2_queue(&s->common, KBD_CMD_ECHO); break; case KBD_CMD_ENABLE: s->scan_enabled = 1; ps2_queue(&s->common, KBD_REPLY_ACK); break; case KBD_CMD_SCANCODE: case KBD_CMD_SET_LEDS: case KBD_CMD_SET_RATE: s->common.write_cmd = val; ps2_queue(&s->common, KBD_REPLY_ACK); break; case KBD_CMD_RESET_DISABLE: ps2_reset_keyboard(s); s->scan_enabled = 0; ps2_queue(&s->common, KBD_REPLY_ACK); break; case KBD_CMD_RESET_ENABLE: ps2_reset_keyboard(s); s->scan_enabled = 1; ps2_queue(&s->common, KBD_REPLY_ACK); break; case KBD_CMD_RESET: ps2_reset_keyboard(s); ps2_queue(&s->common, KBD_REPLY_ACK); ps2_queue(&s->common, KBD_REPLY_POR); break; default: ps2_queue(&s->common, KBD_REPLY_RESEND); break; } break; case KBD_CMD_SCANCODE: if (val == 0) { ps2_queue(&s->common, KBD_REPLY_ACK); ps2_put_keycode(s, s->scancode_set); } else if (val >= 1 && val <= 3) { s->scancode_set = val; ps2_queue(&s->common, KBD_REPLY_ACK); } else { ps2_queue(&s->common, KBD_REPLY_RESEND); } s->common.write_cmd = -1; break; case KBD_CMD_SET_LEDS: ps2_set_ledstate(s, val); ps2_queue(&s->common, KBD_REPLY_ACK); s->common.write_cmd = -1; break; case KBD_CMD_SET_RATE: ps2_queue(&s->common, KBD_REPLY_ACK); s->common.write_cmd = -1; break; } } /* Set the scancode translation mode. 0 = raw scancodes. 1 = translated scancodes (used by qemu internally). */ void ps2_keyboard_set_translation(void *opaque, int mode) { PS2KbdState *s = (PS2KbdState *)opaque; trace_ps2_keyboard_set_translation(opaque, mode); s->translate = mode; } static void ps2_mouse_send_packet(PS2MouseState *s) { unsigned int b; int dx1, dy1, dz1; dx1 = s->mouse_dx; dy1 = s->mouse_dy; dz1 = s->mouse_dz; /* XXX: increase range to 8 bits ? */ if (dx1 > 127) dx1 = 127; else if (dx1 < -127) dx1 = -127; if (dy1 > 127) dy1 = 127; else if (dy1 < -127) dy1 = -127; b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07); ps2_queue(&s->common, b); ps2_queue(&s->common, dx1 & 0xff); ps2_queue(&s->common, dy1 & 0xff); /* extra byte for IMPS/2 or IMEX */ switch(s->mouse_type) { default: break; case 3: if (dz1 > 127) dz1 = 127; else if (dz1 < -127) dz1 = -127; ps2_queue(&s->common, dz1 & 0xff); break; case 4: if (dz1 > 7) dz1 = 7; else if (dz1 < -7) dz1 = -7; b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1); ps2_queue(&s->common, b); break; } trace_ps2_mouse_send_packet(s, dx1, dy1, dz1, b); /* update deltas */ s->mouse_dx -= dx1; s->mouse_dy -= dy1; s->mouse_dz -= dz1; } static void ps2_mouse_event(DeviceState *dev, QemuConsole *src, InputEvent *evt) { static const int bmap[INPUT_BUTTON__MAX] = { [INPUT_BUTTON_LEFT] = PS2_MOUSE_BUTTON_LEFT, [INPUT_BUTTON_MIDDLE] = PS2_MOUSE_BUTTON_MIDDLE, [INPUT_BUTTON_RIGHT] = PS2_MOUSE_BUTTON_RIGHT, [INPUT_BUTTON_SIDE] = PS2_MOUSE_BUTTON_SIDE, [INPUT_BUTTON_EXTRA] = PS2_MOUSE_BUTTON_EXTRA, }; PS2MouseState *s = (PS2MouseState *)dev; InputMoveEvent *move; InputBtnEvent *btn; /* check if deltas are recorded when disabled */ if (!(s->mouse_status & MOUSE_STATUS_ENABLED)) return; switch (evt->type) { case INPUT_EVENT_KIND_REL: move = evt->u.rel.data; if (move->axis == INPUT_AXIS_X) { s->mouse_dx += move->value; } else if (move->axis == INPUT_AXIS_Y) { s->mouse_dy -= move->value; } break; case INPUT_EVENT_KIND_BTN: btn = evt->u.btn.data; if (btn->down) { s->mouse_buttons |= bmap[btn->button]; if (btn->button == INPUT_BUTTON_WHEEL_UP) { s->mouse_dz--; } else if (btn->button == INPUT_BUTTON_WHEEL_DOWN) { s->mouse_dz++; } } else { s->mouse_buttons &= ~bmap[btn->button]; } break; default: /* keep gcc happy */ break; } } static void ps2_mouse_sync(DeviceState *dev) { PS2MouseState *s = (PS2MouseState *)dev; if (s->mouse_buttons) { qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER); } if (!(s->mouse_status & MOUSE_STATUS_REMOTE)) { while (s->common.queue.count < PS2_QUEUE_SIZE - 4) { /* if not remote, send event. Multiple events are sent if too big deltas */ ps2_mouse_send_packet(s); if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0) break; } } } void ps2_mouse_fake_event(void *opaque) { PS2MouseState *s = opaque; trace_ps2_mouse_fake_event(opaque); s->mouse_dx++; ps2_mouse_sync(opaque); } void ps2_write_mouse(void *opaque, int val) { PS2MouseState *s = (PS2MouseState *)opaque; trace_ps2_write_mouse(opaque, val); #ifdef DEBUG_MOUSE printf("kbd: write mouse 0x%02x\n", val); #endif switch(s->common.write_cmd) { default: case -1: /* mouse command */ if (s->mouse_wrap) { if (val == AUX_RESET_WRAP) { s->mouse_wrap = 0; ps2_queue(&s->common, AUX_ACK); return; } else if (val != AUX_RESET) { ps2_queue(&s->common, val); return; } } switch(val) { case AUX_SET_SCALE11: s->mouse_status &= ~MOUSE_STATUS_SCALE21; ps2_queue(&s->common, AUX_ACK); break; case AUX_SET_SCALE21: s->mouse_status |= MOUSE_STATUS_SCALE21; ps2_queue(&s->common, AUX_ACK); break; case AUX_SET_STREAM: s->mouse_status &= ~MOUSE_STATUS_REMOTE; ps2_queue(&s->common, AUX_ACK); break; case AUX_SET_WRAP: s->mouse_wrap = 1; ps2_queue(&s->common, AUX_ACK); break; case AUX_SET_REMOTE: s->mouse_status |= MOUSE_STATUS_REMOTE; ps2_queue(&s->common, AUX_ACK); break; case AUX_GET_TYPE: ps2_queue(&s->common, AUX_ACK); ps2_queue(&s->common, s->mouse_type); break; case AUX_SET_RES: case AUX_SET_SAMPLE: s->common.write_cmd = val; ps2_queue(&s->common, AUX_ACK); break; case AUX_GET_SCALE: ps2_queue(&s->common, AUX_ACK); ps2_queue(&s->common, s->mouse_status); ps2_queue(&s->common, s->mouse_resolution); ps2_queue(&s->common, s->mouse_sample_rate); break; case AUX_POLL: ps2_queue(&s->common, AUX_ACK); ps2_mouse_send_packet(s); break; case AUX_ENABLE_DEV: s->mouse_status |= MOUSE_STATUS_ENABLED; ps2_queue(&s->common, AUX_ACK); break; case AUX_DISABLE_DEV: s->mouse_status &= ~MOUSE_STATUS_ENABLED; ps2_queue(&s->common, AUX_ACK); break; case AUX_SET_DEFAULT: s->mouse_sample_rate = 100; s->mouse_resolution = 2; s->mouse_status = 0; ps2_queue(&s->common, AUX_ACK); break; case AUX_RESET: s->mouse_sample_rate = 100; s->mouse_resolution = 2; s->mouse_status = 0; s->mouse_type = 0; ps2_queue(&s->common, AUX_ACK); ps2_queue(&s->common, 0xaa); ps2_queue(&s->common, s->mouse_type); break; default: break; } break; case AUX_SET_SAMPLE: s->mouse_sample_rate = val; /* detect IMPS/2 or IMEX */ switch(s->mouse_detect_state) { default: case 0: if (val == 200) s->mouse_detect_state = 1; break; case 1: if (val == 100) s->mouse_detect_state = 2; else if (val == 200) s->mouse_detect_state = 3; else s->mouse_detect_state = 0; break; case 2: if (val == 80) s->mouse_type = 3; /* IMPS/2 */ s->mouse_detect_state = 0; break; case 3: if (val == 80) s->mouse_type = 4; /* IMEX */ s->mouse_detect_state = 0; break; } ps2_queue(&s->common, AUX_ACK); s->common.write_cmd = -1; break; case AUX_SET_RES: s->mouse_resolution = val; ps2_queue(&s->common, AUX_ACK); s->common.write_cmd = -1; break; } } static void ps2_common_reset(PS2State *s) { s->write_cmd = -1; ps2_reset_queue(s); s->update_irq(s->update_arg, 0); } static void ps2_common_post_load(PS2State *s) { PS2Queue *q = &s->queue; uint8_t i, size; uint8_t tmp_data[PS2_QUEUE_SIZE]; /* set the useful data buffer queue size, < PS2_QUEUE_SIZE */ size = (q->count < 0 || q->count > PS2_QUEUE_SIZE) ? 0 : q->count; /* move the queue elements to the start of data array */ for (i = 0; i < size; i++) { if (q->rptr < 0 || q->rptr >= sizeof(q->data)) { q->rptr = 0; } tmp_data[i] = q->data[q->rptr++]; } memcpy(q->data, tmp_data, size); /* reset rptr/wptr/count */ q->rptr = 0; q->wptr = size; q->count = size; s->update_irq(s->update_arg, q->count != 0); } static void ps2_kbd_reset(void *opaque) { PS2KbdState *s = (PS2KbdState *) opaque; trace_ps2_kbd_reset(opaque); ps2_common_reset(&s->common); s->scan_enabled = 0; s->translate = 0; s->scancode_set = 2; s->modifiers = 0; } static void ps2_mouse_reset(void *opaque) { PS2MouseState *s = (PS2MouseState *) opaque; trace_ps2_mouse_reset(opaque); ps2_common_reset(&s->common); s->mouse_status = 0; s->mouse_resolution = 0; s->mouse_sample_rate = 0; s->mouse_wrap = 0; s->mouse_type = 0; s->mouse_detect_state = 0; s->mouse_dx = 0; s->mouse_dy = 0; s->mouse_dz = 0; s->mouse_buttons = 0; } static const VMStateDescription vmstate_ps2_common = { .name = "PS2 Common State", .version_id = 3, .minimum_version_id = 2, .fields = (VMStateField[]) { VMSTATE_INT32(write_cmd, PS2State), VMSTATE_INT32(queue.rptr, PS2State), VMSTATE_INT32(queue.wptr, PS2State), VMSTATE_INT32(queue.count, PS2State), VMSTATE_BUFFER(queue.data, PS2State), VMSTATE_END_OF_LIST() } }; static bool ps2_keyboard_ledstate_needed(void *opaque) { PS2KbdState *s = opaque; return s->ledstate != 0; /* 0 is default state */ } static int ps2_kbd_ledstate_post_load(void *opaque, int version_id) { PS2KbdState *s = opaque; kbd_put_ledstate(s->ledstate); return 0; } static const VMStateDescription vmstate_ps2_keyboard_ledstate = { .name = "ps2kbd/ledstate", .version_id = 3, .minimum_version_id = 2, .post_load = ps2_kbd_ledstate_post_load, .needed = ps2_keyboard_ledstate_needed, .fields = (VMStateField[]) { VMSTATE_INT32(ledstate, PS2KbdState), VMSTATE_END_OF_LIST() } }; static bool ps2_keyboard_need_high_bit_needed(void *opaque) { PS2KbdState *s = opaque; return s->need_high_bit != 0; /* 0 is the usual state */ } static const VMStateDescription vmstate_ps2_keyboard_need_high_bit = { .name = "ps2kbd/need_high_bit", .version_id = 1, .minimum_version_id = 1, .needed = ps2_keyboard_need_high_bit_needed, .fields = (VMStateField[]) { VMSTATE_BOOL(need_high_bit, PS2KbdState), VMSTATE_END_OF_LIST() } }; static int ps2_kbd_post_load(void* opaque, int version_id) { PS2KbdState *s = (PS2KbdState*)opaque; PS2State *ps2 = &s->common; if (version_id == 2) s->scancode_set=2; ps2_common_post_load(ps2); return 0; } static int ps2_kbd_pre_save(void *opaque) { PS2KbdState *s = (PS2KbdState *)opaque; PS2State *ps2 = &s->common; ps2_common_post_load(ps2); return 0; } static const VMStateDescription vmstate_ps2_keyboard = { .name = "ps2kbd", .version_id = 3, .minimum_version_id = 2, .post_load = ps2_kbd_post_load, .pre_save = ps2_kbd_pre_save, .fields = (VMStateField[]) { VMSTATE_STRUCT(common, PS2KbdState, 0, vmstate_ps2_common, PS2State), VMSTATE_INT32(scan_enabled, PS2KbdState), VMSTATE_INT32(translate, PS2KbdState), VMSTATE_INT32_V(scancode_set, PS2KbdState,3), VMSTATE_END_OF_LIST() }, .subsections = (const VMStateDescription*[]) { &vmstate_ps2_keyboard_ledstate, &vmstate_ps2_keyboard_need_high_bit, NULL } }; static int ps2_mouse_post_load(void *opaque, int version_id) { PS2MouseState *s = (PS2MouseState *)opaque; PS2State *ps2 = &s->common; ps2_common_post_load(ps2); return 0; } static int ps2_mouse_pre_save(void *opaque) { PS2MouseState *s = (PS2MouseState *)opaque; PS2State *ps2 = &s->common; ps2_common_post_load(ps2); return 0; } static const VMStateDescription vmstate_ps2_mouse = { .name = "ps2mouse", .version_id = 2, .minimum_version_id = 2, .post_load = ps2_mouse_post_load, .pre_save = ps2_mouse_pre_save, .fields = (VMStateField[]) { VMSTATE_STRUCT(common, PS2MouseState, 0, vmstate_ps2_common, PS2State), VMSTATE_UINT8(mouse_status, PS2MouseState), VMSTATE_UINT8(mouse_resolution, PS2MouseState), VMSTATE_UINT8(mouse_sample_rate, PS2MouseState), VMSTATE_UINT8(mouse_wrap, PS2MouseState), VMSTATE_UINT8(mouse_type, PS2MouseState), VMSTATE_UINT8(mouse_detect_state, PS2MouseState), VMSTATE_INT32(mouse_dx, PS2MouseState), VMSTATE_INT32(mouse_dy, PS2MouseState), VMSTATE_INT32(mouse_dz, PS2MouseState), VMSTATE_UINT8(mouse_buttons, PS2MouseState), VMSTATE_END_OF_LIST() } }; static QemuInputHandler ps2_keyboard_handler = { .name = "QEMU PS/2 Keyboard", .mask = INPUT_EVENT_MASK_KEY, .event = ps2_keyboard_event, }; void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg) { PS2KbdState *s = (PS2KbdState *)g_malloc0(sizeof(PS2KbdState)); trace_ps2_kbd_init(s); s->common.update_irq = update_irq; s->common.update_arg = update_arg; s->scancode_set = 2; vmstate_register(NULL, 0, &vmstate_ps2_keyboard, s); qemu_input_handler_register((DeviceState *)s, &ps2_keyboard_handler); qemu_register_reset(ps2_kbd_reset, s); return s; } static QemuInputHandler ps2_mouse_handler = { .name = "QEMU PS/2 Mouse", .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_REL, .event = ps2_mouse_event, .sync = ps2_mouse_sync, }; void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg) { PS2MouseState *s = (PS2MouseState *)g_malloc0(sizeof(PS2MouseState)); trace_ps2_mouse_init(s); s->common.update_irq = update_irq; s->common.update_arg = update_arg; vmstate_register(NULL, 0, &vmstate_ps2_mouse, s); qemu_input_handler_register((DeviceState *)s, &ps2_mouse_handler); qemu_register_reset(ps2_mouse_reset, s); return s; }