| /* |
| * 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_noirq(PS2State *s, int b) |
| { |
| PS2Queue *q = &s->queue; |
| |
| if (q->count == PS2_QUEUE_SIZE) { |
| return; |
| } |
| |
| q->data[q->wptr] = b; |
| if (++q->wptr == PS2_QUEUE_SIZE) |
| q->wptr = 0; |
| q->count++; |
| } |
| |
| void ps2_raise_irq(PS2State *s) |
| { |
| s->update_irq(s->update_arg, 1); |
| } |
| |
| void ps2_queue(PS2State *s, int b) |
| { |
| ps2_queue_noirq(s, b); |
| s->update_irq(s->update_arg, 1); |
| } |
| |
| void ps2_queue_2(PS2State *s, int b1, int b2) |
| { |
| if (PS2_QUEUE_SIZE - s->queue.count < 2) { |
| return; |
| } |
| |
| ps2_queue_noirq(s, b1); |
| ps2_queue_noirq(s, b2); |
| s->update_irq(s->update_arg, 1); |
| } |
| |
| void ps2_queue_3(PS2State *s, int b1, int b2, int b3) |
| { |
| if (PS2_QUEUE_SIZE - s->queue.count < 3) { |
| return; |
| } |
| |
| ps2_queue_noirq(s, b1); |
| ps2_queue_noirq(s, b2); |
| ps2_queue_noirq(s, b3); |
| s->update_irq(s->update_arg, 1); |
| } |
| |
| void ps2_queue_4(PS2State *s, int b1, int b2, int b3, int b4) |
| { |
| if (PS2_QUEUE_SIZE - s->queue.count < 4) { |
| return; |
| } |
| |
| ps2_queue_noirq(s, b1); |
| ps2_queue_noirq(s, b2); |
| ps2_queue_noirq(s, b3); |
| ps2_queue_noirq(s, b4); |
| 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; |
| |
| /* do not process events while disabled to prevent stream corruption */ |
| if (!s->scan_enabled) { |
| return; |
| } |
| |
| 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: |
| /* We emulate a MF2 AT keyboard here */ |
| if (s->translate) |
| ps2_queue_3(&s->common, |
| KBD_REPLY_ACK, |
| KBD_REPLY_ID, |
| 0x41); |
| else |
| ps2_queue_3(&s->common, |
| KBD_REPLY_ACK, |
| KBD_REPLY_ID, |
| 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_2(&s->common, |
| KBD_REPLY_ACK, |
| KBD_REPLY_POR); |
| break; |
| default: |
| ps2_queue(&s->common, KBD_REPLY_RESEND); |
| break; |
| } |
| break; |
| case KBD_CMD_SCANCODE: |
| if (val == 0) { |
| if (s->common.queue.count <= PS2_QUEUE_SIZE - 2) { |
| 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 int ps2_mouse_send_packet(PS2MouseState *s) |
| { |
| const int needed = 3 + (s->mouse_type - 2); |
| unsigned int b; |
| int dx1, dy1, dz1; |
| |
| if (PS2_QUEUE_SIZE - s->common.queue.count < needed) { |
| return 0; |
| } |
| |
| 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_noirq(&s->common, b); |
| ps2_queue_noirq(&s->common, dx1 & 0xff); |
| ps2_queue_noirq(&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_noirq(&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_noirq(&s->common, b); |
| break; |
| } |
| |
| ps2_raise_irq(&s->common); |
| |
| trace_ps2_mouse_send_packet(s, dx1, dy1, dz1, b); |
| /* update deltas */ |
| s->mouse_dx -= dx1; |
| s->mouse_dy -= dy1; |
| s->mouse_dz -= dz1; |
| |
| return 1; |
| } |
| |
| 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; |
| |
| /* do not sync while disabled to prevent stream corruption */ |
| if (!(s->mouse_status & MOUSE_STATUS_ENABLED)) { |
| return; |
| } |
| |
| if (s->mouse_buttons) { |
| qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER); |
| } |
| if (!(s->mouse_status & MOUSE_STATUS_REMOTE)) { |
| /* if not remote, send event. Multiple events are sent if |
| too big deltas */ |
| while (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_2(&s->common, |
| AUX_ACK, |
| 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_4(&s->common, |
| AUX_ACK, |
| s->mouse_status, |
| s->mouse_resolution, |
| 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_reset_queue(&s->common); |
| ps2_queue_3(&s->common, |
| AUX_ACK, |
| 0xaa, |
| 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; |
| } |
