Annotation of qemu/hw/ps2.c, revision 1.1.1.6

1.1       root        1: /*
                      2:  * QEMU PS/2 keyboard/mouse emulation
1.1.1.4   root        3:  *
1.1       root        4:  * Copyright (c) 2003 Fabrice Bellard
1.1.1.4   root        5:  *
1.1       root        6:  * Permission is hereby granted, free of charge, to any person obtaining a copy
                      7:  * of this software and associated documentation files (the "Software"), to deal
                      8:  * in the Software without restriction, including without limitation the rights
                      9:  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
                     10:  * copies of the Software, and to permit persons to whom the Software is
                     11:  * furnished to do so, subject to the following conditions:
                     12:  *
                     13:  * The above copyright notice and this permission notice shall be included in
                     14:  * all copies or substantial portions of the Software.
                     15:  *
                     16:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
                     17:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
                     19:  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
                     20:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
                     21:  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
                     22:  * THE SOFTWARE.
                     23:  */
1.1.1.4   root       24: #include "hw.h"
                     25: #include "ps2.h"
                     26: #include "console.h"
1.1       root       27: 
                     28: /* debug PC keyboard */
                     29: //#define DEBUG_KBD
                     30: 
                     31: /* debug PC keyboard : only mouse */
                     32: //#define DEBUG_MOUSE
                     33: 
                     34: /* Keyboard Commands */
                     35: #define KBD_CMD_SET_LEDS       0xED    /* Set keyboard leds */
                     36: #define KBD_CMD_ECHO           0xEE
1.1.1.5   root       37: #define KBD_CMD_SCANCODE       0xF0    /* Get/set scancode set */
1.1       root       38: #define KBD_CMD_GET_ID                 0xF2    /* get keyboard ID */
                     39: #define KBD_CMD_SET_RATE       0xF3    /* Set typematic rate */
                     40: #define KBD_CMD_ENABLE         0xF4    /* Enable scanning */
                     41: #define KBD_CMD_RESET_DISABLE  0xF5    /* reset and disable scanning */
                     42: #define KBD_CMD_RESET_ENABLE           0xF6    /* reset and enable scanning */
                     43: #define KBD_CMD_RESET          0xFF    /* Reset */
                     44: 
                     45: /* Keyboard Replies */
                     46: #define KBD_REPLY_POR          0xAA    /* Power on reset */
1.1.1.5   root       47: #define KBD_REPLY_ID           0xAB    /* Keyboard ID */
1.1       root       48: #define KBD_REPLY_ACK          0xFA    /* Command ACK */
                     49: #define KBD_REPLY_RESEND       0xFE    /* Command NACK, send the cmd again */
                     50: 
                     51: /* Mouse Commands */
                     52: #define AUX_SET_SCALE11                0xE6    /* Set 1:1 scaling */
                     53: #define AUX_SET_SCALE21                0xE7    /* Set 2:1 scaling */
                     54: #define AUX_SET_RES            0xE8    /* Set resolution */
                     55: #define AUX_GET_SCALE          0xE9    /* Get scaling factor */
                     56: #define AUX_SET_STREAM         0xEA    /* Set stream mode */
                     57: #define AUX_POLL               0xEB    /* Poll */
                     58: #define AUX_RESET_WRAP         0xEC    /* Reset wrap mode */
                     59: #define AUX_SET_WRAP           0xEE    /* Set wrap mode */
                     60: #define AUX_SET_REMOTE         0xF0    /* Set remote mode */
                     61: #define AUX_GET_TYPE           0xF2    /* Get type */
                     62: #define AUX_SET_SAMPLE         0xF3    /* Set sample rate */
                     63: #define AUX_ENABLE_DEV         0xF4    /* Enable aux device */
                     64: #define AUX_DISABLE_DEV                0xF5    /* Disable aux device */
                     65: #define AUX_SET_DEFAULT                0xF6
                     66: #define AUX_RESET              0xFF    /* Reset aux device */
                     67: #define AUX_ACK                        0xFA    /* Command byte ACK. */
                     68: 
                     69: #define MOUSE_STATUS_REMOTE     0x40
                     70: #define MOUSE_STATUS_ENABLED    0x20
                     71: #define MOUSE_STATUS_SCALE21    0x10
                     72: 
                     73: #define PS2_QUEUE_SIZE 256
                     74: 
                     75: typedef struct {
                     76:     uint8_t data[PS2_QUEUE_SIZE];
                     77:     int rptr, wptr, count;
                     78: } PS2Queue;
                     79: 
                     80: typedef struct {
                     81:     PS2Queue queue;
                     82:     int32_t write_cmd;
                     83:     void (*update_irq)(void *, int);
                     84:     void *update_arg;
                     85: } PS2State;
                     86: 
                     87: typedef struct {
                     88:     PS2State common;
                     89:     int scan_enabled;
1.1.1.2   root       90:     /* Qemu uses translated PC scancodes internally.  To avoid multiple
                     91:        conversions we do the translation (if any) in the PS/2 emulation
                     92:        not the keyboard controller.  */
                     93:     int translate;
1.1.1.5   root       94:     int scancode_set; /* 1=XT, 2=AT, 3=PS/2 */
1.1       root       95: } PS2KbdState;
                     96: 
                     97: typedef struct {
                     98:     PS2State common;
                     99:     uint8_t mouse_status;
                    100:     uint8_t mouse_resolution;
                    101:     uint8_t mouse_sample_rate;
                    102:     uint8_t mouse_wrap;
                    103:     uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */
                    104:     uint8_t mouse_detect_state;
                    105:     int mouse_dx; /* current values, needed for 'poll' mode */
                    106:     int mouse_dy;
                    107:     int mouse_dz;
                    108:     uint8_t mouse_buttons;
                    109: } PS2MouseState;
                    110: 
1.1.1.2   root      111: /* Table to convert from PC scancodes to raw scancodes.  */
                    112: static const unsigned char ps2_raw_keycode[128] = {
                    113:           0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13,
                    114:          21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27,
                    115:          35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42,
                    116:          50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88,  5,  6,  4, 12,  3,
                    117:          11,  2, 10,  1,  9,119,126,108,117,125,123,107,115,116,121,105,
                    118:         114,122,112,113,127, 96, 97,120,  7, 15, 23, 31, 39, 47, 55, 63,
                    119:          71, 79, 86, 94,  8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111,
                    120:          19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110
                    121: };
                    122: 
1.1       root      123: void ps2_queue(void *opaque, int b)
                    124: {
                    125:     PS2State *s = (PS2State *)opaque;
                    126:     PS2Queue *q = &s->queue;
                    127: 
                    128:     if (q->count >= PS2_QUEUE_SIZE)
                    129:         return;
                    130:     q->data[q->wptr] = b;
                    131:     if (++q->wptr == PS2_QUEUE_SIZE)
                    132:         q->wptr = 0;
                    133:     q->count++;
                    134:     s->update_irq(s->update_arg, 1);
                    135: }
                    136: 
1.1.1.5   root      137: /*
                    138:    keycode is expressed as follow:
                    139:    bit 7    - 0 key pressed, 1 = key released
                    140:    bits 6-0 - translated scancode set 2
                    141:  */
1.1       root      142: static void ps2_put_keycode(void *opaque, int keycode)
                    143: {
1.1.1.2   root      144:     PS2KbdState *s = opaque;
1.1.1.5   root      145: 
                    146:     /* XXX: add support for scancode sets 1 and 3 */
                    147:     if (!s->translate && keycode < 0xe0 && s->scancode_set == 2)
1.1.1.2   root      148:       {
                    149:         if (keycode & 0x80)
                    150:             ps2_queue(&s->common, 0xf0);
                    151:         keycode = ps2_raw_keycode[keycode & 0x7f];
                    152:       }
1.1       root      153:     ps2_queue(&s->common, keycode);
                    154: }
                    155: 
                    156: uint32_t ps2_read_data(void *opaque)
                    157: {
                    158:     PS2State *s = (PS2State *)opaque;
                    159:     PS2Queue *q;
                    160:     int val, index;
1.1.1.4   root      161: 
1.1       root      162:     q = &s->queue;
                    163:     if (q->count == 0) {
                    164:         /* NOTE: if no data left, we return the last keyboard one
                    165:            (needed for EMM386) */
                    166:         /* XXX: need a timer to do things correctly */
                    167:         index = q->rptr - 1;
                    168:         if (index < 0)
                    169:             index = PS2_QUEUE_SIZE - 1;
                    170:         val = q->data[index];
                    171:     } else {
                    172:         val = q->data[q->rptr];
                    173:         if (++q->rptr == PS2_QUEUE_SIZE)
                    174:             q->rptr = 0;
                    175:         q->count--;
                    176:         /* reading deasserts IRQ */
                    177:         s->update_irq(s->update_arg, 0);
                    178:         /* reassert IRQs if data left */
                    179:         s->update_irq(s->update_arg, q->count != 0);
                    180:     }
                    181:     return val;
                    182: }
                    183: 
                    184: static void ps2_reset_keyboard(PS2KbdState *s)
                    185: {
                    186:     s->scan_enabled = 1;
1.1.1.5   root      187:     s->scancode_set = 2;
1.1       root      188: }
                    189: 
                    190: void ps2_write_keyboard(void *opaque, int val)
                    191: {
                    192:     PS2KbdState *s = (PS2KbdState *)opaque;
                    193: 
                    194:     switch(s->common.write_cmd) {
                    195:     default:
                    196:     case -1:
                    197:         switch(val) {
                    198:         case 0x00:
                    199:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    200:             break;
                    201:         case 0x05:
                    202:             ps2_queue(&s->common, KBD_REPLY_RESEND);
                    203:             break;
                    204:         case KBD_CMD_GET_ID:
                    205:             ps2_queue(&s->common, KBD_REPLY_ACK);
1.1.1.5   root      206:             /* We emulate a MF2 AT keyboard here */
                    207:             ps2_queue(&s->common, KBD_REPLY_ID);
                    208:             if (s->translate)
                    209:                 ps2_queue(&s->common, 0x41);
                    210:             else
                    211:                 ps2_queue(&s->common, 0x83);
1.1       root      212:             break;
                    213:         case KBD_CMD_ECHO:
                    214:             ps2_queue(&s->common, KBD_CMD_ECHO);
                    215:             break;
                    216:         case KBD_CMD_ENABLE:
                    217:             s->scan_enabled = 1;
                    218:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    219:             break;
1.1.1.5   root      220:         case KBD_CMD_SCANCODE:
1.1       root      221:         case KBD_CMD_SET_LEDS:
                    222:         case KBD_CMD_SET_RATE:
                    223:             s->common.write_cmd = val;
                    224:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    225:             break;
                    226:         case KBD_CMD_RESET_DISABLE:
                    227:             ps2_reset_keyboard(s);
                    228:             s->scan_enabled = 0;
                    229:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    230:             break;
                    231:         case KBD_CMD_RESET_ENABLE:
                    232:             ps2_reset_keyboard(s);
                    233:             s->scan_enabled = 1;
                    234:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    235:             break;
                    236:         case KBD_CMD_RESET:
                    237:             ps2_reset_keyboard(s);
                    238:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    239:             ps2_queue(&s->common, KBD_REPLY_POR);
                    240:             break;
                    241:         default:
                    242:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    243:             break;
                    244:         }
                    245:         break;
1.1.1.5   root      246:     case KBD_CMD_SCANCODE:
                    247:         if (val == 0) {
                    248:             if (s->scancode_set == 1)
                    249:                 ps2_put_keycode(s, 0x43);
                    250:             else if (s->scancode_set == 2)
                    251:                 ps2_put_keycode(s, 0x41);
                    252:             else if (s->scancode_set == 3)
                    253:                 ps2_put_keycode(s, 0x3f);
                    254:         } else {
                    255:             if (val >= 1 && val <= 3)
                    256:                 s->scancode_set = val;
                    257:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    258:         }
                    259:         s->common.write_cmd = -1;
                    260:         break;
1.1       root      261:     case KBD_CMD_SET_LEDS:
                    262:         ps2_queue(&s->common, KBD_REPLY_ACK);
                    263:         s->common.write_cmd = -1;
                    264:         break;
                    265:     case KBD_CMD_SET_RATE:
                    266:         ps2_queue(&s->common, KBD_REPLY_ACK);
                    267:         s->common.write_cmd = -1;
                    268:         break;
                    269:     }
                    270: }
                    271: 
1.1.1.2   root      272: /* Set the scancode translation mode.
                    273:    0 = raw scancodes.
                    274:    1 = translated scancodes (used by qemu internally).  */
                    275: 
                    276: void ps2_keyboard_set_translation(void *opaque, int mode)
                    277: {
                    278:     PS2KbdState *s = (PS2KbdState *)opaque;
                    279:     s->translate = mode;
                    280: }
                    281: 
1.1       root      282: static void ps2_mouse_send_packet(PS2MouseState *s)
                    283: {
                    284:     unsigned int b;
                    285:     int dx1, dy1, dz1;
                    286: 
                    287:     dx1 = s->mouse_dx;
                    288:     dy1 = s->mouse_dy;
                    289:     dz1 = s->mouse_dz;
                    290:     /* XXX: increase range to 8 bits ? */
                    291:     if (dx1 > 127)
                    292:         dx1 = 127;
                    293:     else if (dx1 < -127)
                    294:         dx1 = -127;
                    295:     if (dy1 > 127)
                    296:         dy1 = 127;
                    297:     else if (dy1 < -127)
                    298:         dy1 = -127;
                    299:     b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07);
                    300:     ps2_queue(&s->common, b);
                    301:     ps2_queue(&s->common, dx1 & 0xff);
                    302:     ps2_queue(&s->common, dy1 & 0xff);
                    303:     /* extra byte for IMPS/2 or IMEX */
                    304:     switch(s->mouse_type) {
                    305:     default:
                    306:         break;
                    307:     case 3:
                    308:         if (dz1 > 127)
                    309:             dz1 = 127;
                    310:         else if (dz1 < -127)
                    311:                 dz1 = -127;
                    312:         ps2_queue(&s->common, dz1 & 0xff);
                    313:         break;
                    314:     case 4:
                    315:         if (dz1 > 7)
                    316:             dz1 = 7;
                    317:         else if (dz1 < -7)
                    318:             dz1 = -7;
                    319:         b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1);
                    320:         ps2_queue(&s->common, b);
                    321:         break;
                    322:     }
                    323: 
                    324:     /* update deltas */
                    325:     s->mouse_dx -= dx1;
                    326:     s->mouse_dy -= dy1;
                    327:     s->mouse_dz -= dz1;
                    328: }
                    329: 
1.1.1.4   root      330: static void ps2_mouse_event(void *opaque,
1.1       root      331:                             int dx, int dy, int dz, int buttons_state)
                    332: {
                    333:     PS2MouseState *s = opaque;
                    334: 
                    335:     /* check if deltas are recorded when disabled */
                    336:     if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
                    337:         return;
                    338: 
                    339:     s->mouse_dx += dx;
                    340:     s->mouse_dy -= dy;
                    341:     s->mouse_dz += dz;
                    342:     /* XXX: SDL sometimes generates nul events: we delete them */
                    343:     if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0 &&
                    344:         s->mouse_buttons == buttons_state)
                    345:        return;
                    346:     s->mouse_buttons = buttons_state;
1.1.1.4   root      347: 
1.1       root      348:     if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
                    349:         (s->common.queue.count < (PS2_QUEUE_SIZE - 16))) {
                    350:         for(;;) {
                    351:             /* if not remote, send event. Multiple events are sent if
                    352:                too big deltas */
                    353:             ps2_mouse_send_packet(s);
                    354:             if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0)
                    355:                 break;
                    356:         }
                    357:     }
                    358: }
                    359: 
1.1.1.4   root      360: void ps2_mouse_fake_event(void *opaque)
                    361: {
                    362:     ps2_mouse_event(opaque, 1, 0, 0, 0);
                    363: }
                    364: 
1.1       root      365: void ps2_write_mouse(void *opaque, int val)
                    366: {
                    367:     PS2MouseState *s = (PS2MouseState *)opaque;
                    368: #ifdef DEBUG_MOUSE
                    369:     printf("kbd: write mouse 0x%02x\n", val);
                    370: #endif
                    371:     switch(s->common.write_cmd) {
                    372:     default:
                    373:     case -1:
                    374:         /* mouse command */
                    375:         if (s->mouse_wrap) {
                    376:             if (val == AUX_RESET_WRAP) {
                    377:                 s->mouse_wrap = 0;
                    378:                 ps2_queue(&s->common, AUX_ACK);
                    379:                 return;
                    380:             } else if (val != AUX_RESET) {
                    381:                 ps2_queue(&s->common, val);
                    382:                 return;
                    383:             }
                    384:         }
                    385:         switch(val) {
                    386:         case AUX_SET_SCALE11:
                    387:             s->mouse_status &= ~MOUSE_STATUS_SCALE21;
                    388:             ps2_queue(&s->common, AUX_ACK);
                    389:             break;
                    390:         case AUX_SET_SCALE21:
                    391:             s->mouse_status |= MOUSE_STATUS_SCALE21;
                    392:             ps2_queue(&s->common, AUX_ACK);
                    393:             break;
                    394:         case AUX_SET_STREAM:
                    395:             s->mouse_status &= ~MOUSE_STATUS_REMOTE;
                    396:             ps2_queue(&s->common, AUX_ACK);
                    397:             break;
                    398:         case AUX_SET_WRAP:
                    399:             s->mouse_wrap = 1;
                    400:             ps2_queue(&s->common, AUX_ACK);
                    401:             break;
                    402:         case AUX_SET_REMOTE:
                    403:             s->mouse_status |= MOUSE_STATUS_REMOTE;
                    404:             ps2_queue(&s->common, AUX_ACK);
                    405:             break;
                    406:         case AUX_GET_TYPE:
                    407:             ps2_queue(&s->common, AUX_ACK);
                    408:             ps2_queue(&s->common, s->mouse_type);
                    409:             break;
                    410:         case AUX_SET_RES:
                    411:         case AUX_SET_SAMPLE:
                    412:             s->common.write_cmd = val;
                    413:             ps2_queue(&s->common, AUX_ACK);
                    414:             break;
                    415:         case AUX_GET_SCALE:
                    416:             ps2_queue(&s->common, AUX_ACK);
                    417:             ps2_queue(&s->common, s->mouse_status);
                    418:             ps2_queue(&s->common, s->mouse_resolution);
                    419:             ps2_queue(&s->common, s->mouse_sample_rate);
                    420:             break;
                    421:         case AUX_POLL:
                    422:             ps2_queue(&s->common, AUX_ACK);
                    423:             ps2_mouse_send_packet(s);
                    424:             break;
                    425:         case AUX_ENABLE_DEV:
                    426:             s->mouse_status |= MOUSE_STATUS_ENABLED;
                    427:             ps2_queue(&s->common, AUX_ACK);
                    428:             break;
                    429:         case AUX_DISABLE_DEV:
                    430:             s->mouse_status &= ~MOUSE_STATUS_ENABLED;
                    431:             ps2_queue(&s->common, AUX_ACK);
                    432:             break;
                    433:         case AUX_SET_DEFAULT:
                    434:             s->mouse_sample_rate = 100;
                    435:             s->mouse_resolution = 2;
                    436:             s->mouse_status = 0;
                    437:             ps2_queue(&s->common, AUX_ACK);
                    438:             break;
                    439:         case AUX_RESET:
                    440:             s->mouse_sample_rate = 100;
                    441:             s->mouse_resolution = 2;
                    442:             s->mouse_status = 0;
                    443:             s->mouse_type = 0;
                    444:             ps2_queue(&s->common, AUX_ACK);
                    445:             ps2_queue(&s->common, 0xaa);
                    446:             ps2_queue(&s->common, s->mouse_type);
                    447:             break;
                    448:         default:
                    449:             break;
                    450:         }
                    451:         break;
                    452:     case AUX_SET_SAMPLE:
                    453:         s->mouse_sample_rate = val;
                    454:         /* detect IMPS/2 or IMEX */
                    455:         switch(s->mouse_detect_state) {
                    456:         default:
                    457:         case 0:
                    458:             if (val == 200)
                    459:                 s->mouse_detect_state = 1;
                    460:             break;
                    461:         case 1:
                    462:             if (val == 100)
                    463:                 s->mouse_detect_state = 2;
                    464:             else if (val == 200)
                    465:                 s->mouse_detect_state = 3;
                    466:             else
                    467:                 s->mouse_detect_state = 0;
                    468:             break;
                    469:         case 2:
1.1.1.4   root      470:             if (val == 80)
1.1       root      471:                 s->mouse_type = 3; /* IMPS/2 */
                    472:             s->mouse_detect_state = 0;
                    473:             break;
                    474:         case 3:
1.1.1.4   root      475:             if (val == 80)
1.1       root      476:                 s->mouse_type = 4; /* IMEX */
                    477:             s->mouse_detect_state = 0;
                    478:             break;
                    479:         }
                    480:         ps2_queue(&s->common, AUX_ACK);
                    481:         s->common.write_cmd = -1;
                    482:         break;
                    483:     case AUX_SET_RES:
                    484:         s->mouse_resolution = val;
                    485:         ps2_queue(&s->common, AUX_ACK);
                    486:         s->common.write_cmd = -1;
                    487:         break;
                    488:     }
                    489: }
                    490: 
1.1.1.6 ! root      491: static void ps2_common_reset(PS2State *s)
1.1       root      492: {
                    493:     PS2Queue *q;
                    494:     s->write_cmd = -1;
                    495:     q = &s->queue;
                    496:     q->rptr = 0;
                    497:     q->wptr = 0;
                    498:     q->count = 0;
1.1.1.5   root      499:     s->update_irq(s->update_arg, 0);
1.1       root      500: }
                    501: 
1.1.1.6 ! root      502: static void ps2_kbd_reset(void *opaque)
        !           503: {
        !           504:     PS2KbdState *s = (PS2KbdState *) opaque;
        !           505: 
        !           506:     ps2_common_reset(&s->common);
        !           507:     s->scan_enabled = 0;
        !           508:     s->translate = 0;
        !           509:     s->scancode_set = 0;
        !           510: }
        !           511: 
        !           512: static void ps2_mouse_reset(void *opaque)
        !           513: {
        !           514:     PS2MouseState *s = (PS2MouseState *) opaque;
        !           515: 
        !           516:     ps2_common_reset(&s->common);
        !           517:     s->mouse_status = 0;
        !           518:     s->mouse_resolution = 0;
        !           519:     s->mouse_sample_rate = 0;
        !           520:     s->mouse_wrap = 0;
        !           521:     s->mouse_type = 0;
        !           522:     s->mouse_detect_state = 0;
        !           523:     s->mouse_dx = 0;
        !           524:     s->mouse_dy = 0;
        !           525:     s->mouse_dz = 0;
        !           526:     s->mouse_buttons = 0;
        !           527: }
        !           528: 
1.1.1.2   root      529: static void ps2_common_save (QEMUFile *f, PS2State *s)
                    530: {
1.1.1.4   root      531:     qemu_put_be32 (f, s->write_cmd);
                    532:     qemu_put_be32 (f, s->queue.rptr);
                    533:     qemu_put_be32 (f, s->queue.wptr);
                    534:     qemu_put_be32 (f, s->queue.count);
1.1.1.2   root      535:     qemu_put_buffer (f, s->queue.data, sizeof (s->queue.data));
                    536: }
                    537: 
                    538: static void ps2_common_load (QEMUFile *f, PS2State *s)
                    539: {
1.1.1.4   root      540:     s->write_cmd=qemu_get_be32 (f);
                    541:     s->queue.rptr=qemu_get_be32 (f);
                    542:     s->queue.wptr=qemu_get_be32 (f);
                    543:     s->queue.count=qemu_get_be32 (f);
1.1.1.2   root      544:     qemu_get_buffer (f, s->queue.data, sizeof (s->queue.data));
                    545: }
                    546: 
1.1       root      547: static void ps2_kbd_save(QEMUFile* f, void* opaque)
                    548: {
                    549:     PS2KbdState *s = (PS2KbdState*)opaque;
1.1.1.2   root      550: 
                    551:     ps2_common_save (f, &s->common);
1.1.1.4   root      552:     qemu_put_be32(f, s->scan_enabled);
                    553:     qemu_put_be32(f, s->translate);
1.1.1.5   root      554:     qemu_put_be32(f, s->scancode_set);
1.1       root      555: }
                    556: 
                    557: static void ps2_mouse_save(QEMUFile* f, void* opaque)
                    558: {
                    559:     PS2MouseState *s = (PS2MouseState*)opaque;
1.1.1.2   root      560: 
                    561:     ps2_common_save (f, &s->common);
1.1       root      562:     qemu_put_8s(f, &s->mouse_status);
                    563:     qemu_put_8s(f, &s->mouse_resolution);
                    564:     qemu_put_8s(f, &s->mouse_sample_rate);
                    565:     qemu_put_8s(f, &s->mouse_wrap);
                    566:     qemu_put_8s(f, &s->mouse_type);
                    567:     qemu_put_8s(f, &s->mouse_detect_state);
1.1.1.4   root      568:     qemu_put_be32(f, s->mouse_dx);
                    569:     qemu_put_be32(f, s->mouse_dy);
                    570:     qemu_put_be32(f, s->mouse_dz);
1.1       root      571:     qemu_put_8s(f, &s->mouse_buttons);
                    572: }
                    573: 
                    574: static int ps2_kbd_load(QEMUFile* f, void* opaque, int version_id)
                    575: {
                    576:     PS2KbdState *s = (PS2KbdState*)opaque;
1.1.1.2   root      577: 
1.1.1.5   root      578:     if (version_id != 2 && version_id != 3)
1.1       root      579:         return -EINVAL;
1.1.1.2   root      580: 
                    581:     ps2_common_load (f, &s->common);
1.1.1.4   root      582:     s->scan_enabled=qemu_get_be32(f);
                    583:     s->translate=qemu_get_be32(f);
1.1.1.5   root      584:     if (version_id == 3)
                    585:         s->scancode_set=qemu_get_be32(f);
                    586:     else
                    587:         s->scancode_set=2;
1.1       root      588:     return 0;
                    589: }
                    590: 
                    591: static int ps2_mouse_load(QEMUFile* f, void* opaque, int version_id)
                    592: {
                    593:     PS2MouseState *s = (PS2MouseState*)opaque;
1.1.1.2   root      594: 
                    595:     if (version_id != 2)
1.1       root      596:         return -EINVAL;
1.1.1.2   root      597: 
                    598:     ps2_common_load (f, &s->common);
1.1       root      599:     qemu_get_8s(f, &s->mouse_status);
                    600:     qemu_get_8s(f, &s->mouse_resolution);
                    601:     qemu_get_8s(f, &s->mouse_sample_rate);
                    602:     qemu_get_8s(f, &s->mouse_wrap);
                    603:     qemu_get_8s(f, &s->mouse_type);
                    604:     qemu_get_8s(f, &s->mouse_detect_state);
1.1.1.4   root      605:     s->mouse_dx=qemu_get_be32(f);
                    606:     s->mouse_dy=qemu_get_be32(f);
                    607:     s->mouse_dz=qemu_get_be32(f);
1.1       root      608:     qemu_get_8s(f, &s->mouse_buttons);
                    609:     return 0;
                    610: }
                    611: 
                    612: void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg)
                    613: {
                    614:     PS2KbdState *s = (PS2KbdState *)qemu_mallocz(sizeof(PS2KbdState));
                    615: 
                    616:     s->common.update_irq = update_irq;
                    617:     s->common.update_arg = update_arg;
1.1.1.5   root      618:     s->scancode_set = 2;
1.1.1.6 ! root      619:     ps2_kbd_reset(s);
1.1.1.5   root      620:     register_savevm("ps2kbd", 0, 3, ps2_kbd_save, ps2_kbd_load, s);
1.1       root      621:     qemu_add_kbd_event_handler(ps2_put_keycode, s);
1.1.1.6 ! root      622:     qemu_register_reset(ps2_kbd_reset, s);
1.1       root      623:     return s;
                    624: }
                    625: 
                    626: void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg)
                    627: {
                    628:     PS2MouseState *s = (PS2MouseState *)qemu_mallocz(sizeof(PS2MouseState));
                    629: 
                    630:     s->common.update_irq = update_irq;
                    631:     s->common.update_arg = update_arg;
1.1.1.6 ! root      632:     ps2_mouse_reset(s);
1.1.1.2   root      633:     register_savevm("ps2mouse", 0, 2, ps2_mouse_save, ps2_mouse_load, s);
1.1.1.3   root      634:     qemu_add_mouse_event_handler(ps2_mouse_event, s, 0, "QEMU PS/2 Mouse");
1.1.1.6 ! root      635:     qemu_register_reset(ps2_mouse_reset, s);
1.1       root      636:     return s;
                    637: }

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