Annotation of qemu/hw/ps2.c, revision 1.1.1.9

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] = {
1.1.1.9 ! root      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: static const unsigned char ps2_raw_keycode_set3[128] = {
        !           123:   0,   8,  22,  30,  38,  37,  46,  54,  61,  62,  70,  69,  78,  85, 102,  13,
        !           124:  21,  29,  36,  45,  44,  53,  60,  67,  68,  77,  84,  91,  90,  17,  28,  27,
        !           125:  35,  43,  52,  51,  59,  66,  75,  76,  82,  14,  18,  92,  26,  34,  33,  42,
        !           126:  50,  49,  58,  65,  73,  74,  89, 126,  25,  41,  20,   7,  15,  23,  31,  39,
        !           127:  47,   2,  63,  71,  79, 118,  95, 108, 117, 125, 132, 107, 115, 116, 124, 105,
        !           128: 114, 122, 112, 113, 127,  96,  97,  86,  94,  15,  23,  31,  39,  47,  55,  63,
        !           129:  71,  79,  86,  94,   8,  16,  24,  32,  40,  48,  56,  64,  72,  80,  87, 111,
        !           130:  19,  25,  57,  81,  83,  92,  95,  98,  99, 100, 101, 103, 104, 106, 109, 110
1.1.1.2   root      131: };
                    132: 
1.1       root      133: void ps2_queue(void *opaque, int b)
                    134: {
                    135:     PS2State *s = (PS2State *)opaque;
                    136:     PS2Queue *q = &s->queue;
                    137: 
                    138:     if (q->count >= PS2_QUEUE_SIZE)
                    139:         return;
                    140:     q->data[q->wptr] = b;
                    141:     if (++q->wptr == PS2_QUEUE_SIZE)
                    142:         q->wptr = 0;
                    143:     q->count++;
                    144:     s->update_irq(s->update_arg, 1);
                    145: }
                    146: 
1.1.1.5   root      147: /*
                    148:    keycode is expressed as follow:
                    149:    bit 7    - 0 key pressed, 1 = key released
                    150:    bits 6-0 - translated scancode set 2
                    151:  */
1.1       root      152: static void ps2_put_keycode(void *opaque, int keycode)
                    153: {
1.1.1.2   root      154:     PS2KbdState *s = opaque;
1.1.1.5   root      155: 
1.1.1.9 ! root      156:     /* XXX: add support for scancode set 1 */
        !           157:     if (!s->translate && keycode < 0xe0 && s->scancode_set > 1) {
        !           158:         if (keycode & 0x80) {
1.1.1.2   root      159:             ps2_queue(&s->common, 0xf0);
1.1.1.9 ! root      160:         }
        !           161:         if (s->scancode_set == 2) {
        !           162:             keycode = ps2_raw_keycode[keycode & 0x7f];
        !           163:         } else if (s->scancode_set == 3) {
        !           164:             keycode = ps2_raw_keycode_set3[keycode & 0x7f];
        !           165:         }
1.1.1.2   root      166:       }
1.1       root      167:     ps2_queue(&s->common, keycode);
                    168: }
                    169: 
                    170: uint32_t ps2_read_data(void *opaque)
                    171: {
                    172:     PS2State *s = (PS2State *)opaque;
                    173:     PS2Queue *q;
                    174:     int val, index;
1.1.1.4   root      175: 
1.1       root      176:     q = &s->queue;
                    177:     if (q->count == 0) {
                    178:         /* NOTE: if no data left, we return the last keyboard one
                    179:            (needed for EMM386) */
                    180:         /* XXX: need a timer to do things correctly */
                    181:         index = q->rptr - 1;
                    182:         if (index < 0)
                    183:             index = PS2_QUEUE_SIZE - 1;
                    184:         val = q->data[index];
                    185:     } else {
                    186:         val = q->data[q->rptr];
                    187:         if (++q->rptr == PS2_QUEUE_SIZE)
                    188:             q->rptr = 0;
                    189:         q->count--;
                    190:         /* reading deasserts IRQ */
                    191:         s->update_irq(s->update_arg, 0);
                    192:         /* reassert IRQs if data left */
                    193:         s->update_irq(s->update_arg, q->count != 0);
                    194:     }
                    195:     return val;
                    196: }
                    197: 
                    198: static void ps2_reset_keyboard(PS2KbdState *s)
                    199: {
                    200:     s->scan_enabled = 1;
1.1.1.5   root      201:     s->scancode_set = 2;
1.1.1.8   root      202:     kbd_put_ledstate(0);
1.1       root      203: }
                    204: 
                    205: void ps2_write_keyboard(void *opaque, int val)
                    206: {
                    207:     PS2KbdState *s = (PS2KbdState *)opaque;
                    208: 
                    209:     switch(s->common.write_cmd) {
                    210:     default:
                    211:     case -1:
                    212:         switch(val) {
                    213:         case 0x00:
                    214:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    215:             break;
                    216:         case 0x05:
                    217:             ps2_queue(&s->common, KBD_REPLY_RESEND);
                    218:             break;
                    219:         case KBD_CMD_GET_ID:
                    220:             ps2_queue(&s->common, KBD_REPLY_ACK);
1.1.1.5   root      221:             /* We emulate a MF2 AT keyboard here */
                    222:             ps2_queue(&s->common, KBD_REPLY_ID);
                    223:             if (s->translate)
                    224:                 ps2_queue(&s->common, 0x41);
                    225:             else
                    226:                 ps2_queue(&s->common, 0x83);
1.1       root      227:             break;
                    228:         case KBD_CMD_ECHO:
                    229:             ps2_queue(&s->common, KBD_CMD_ECHO);
                    230:             break;
                    231:         case KBD_CMD_ENABLE:
                    232:             s->scan_enabled = 1;
                    233:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    234:             break;
1.1.1.5   root      235:         case KBD_CMD_SCANCODE:
1.1       root      236:         case KBD_CMD_SET_LEDS:
                    237:         case KBD_CMD_SET_RATE:
                    238:             s->common.write_cmd = val;
                    239:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    240:             break;
                    241:         case KBD_CMD_RESET_DISABLE:
                    242:             ps2_reset_keyboard(s);
                    243:             s->scan_enabled = 0;
                    244:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    245:             break;
                    246:         case KBD_CMD_RESET_ENABLE:
                    247:             ps2_reset_keyboard(s);
                    248:             s->scan_enabled = 1;
                    249:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    250:             break;
                    251:         case KBD_CMD_RESET:
                    252:             ps2_reset_keyboard(s);
                    253:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    254:             ps2_queue(&s->common, KBD_REPLY_POR);
                    255:             break;
                    256:         default:
                    257:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    258:             break;
                    259:         }
                    260:         break;
1.1.1.5   root      261:     case KBD_CMD_SCANCODE:
                    262:         if (val == 0) {
                    263:             if (s->scancode_set == 1)
                    264:                 ps2_put_keycode(s, 0x43);
                    265:             else if (s->scancode_set == 2)
                    266:                 ps2_put_keycode(s, 0x41);
                    267:             else if (s->scancode_set == 3)
                    268:                 ps2_put_keycode(s, 0x3f);
                    269:         } else {
                    270:             if (val >= 1 && val <= 3)
                    271:                 s->scancode_set = val;
                    272:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    273:         }
                    274:         s->common.write_cmd = -1;
                    275:         break;
1.1       root      276:     case KBD_CMD_SET_LEDS:
1.1.1.8   root      277:         kbd_put_ledstate(val);
1.1       root      278:         ps2_queue(&s->common, KBD_REPLY_ACK);
                    279:         s->common.write_cmd = -1;
                    280:         break;
                    281:     case KBD_CMD_SET_RATE:
                    282:         ps2_queue(&s->common, KBD_REPLY_ACK);
                    283:         s->common.write_cmd = -1;
                    284:         break;
                    285:     }
                    286: }
                    287: 
1.1.1.2   root      288: /* Set the scancode translation mode.
                    289:    0 = raw scancodes.
                    290:    1 = translated scancodes (used by qemu internally).  */
                    291: 
                    292: void ps2_keyboard_set_translation(void *opaque, int mode)
                    293: {
                    294:     PS2KbdState *s = (PS2KbdState *)opaque;
                    295:     s->translate = mode;
                    296: }
                    297: 
1.1       root      298: static void ps2_mouse_send_packet(PS2MouseState *s)
                    299: {
                    300:     unsigned int b;
                    301:     int dx1, dy1, dz1;
                    302: 
                    303:     dx1 = s->mouse_dx;
                    304:     dy1 = s->mouse_dy;
                    305:     dz1 = s->mouse_dz;
                    306:     /* XXX: increase range to 8 bits ? */
                    307:     if (dx1 > 127)
                    308:         dx1 = 127;
                    309:     else if (dx1 < -127)
                    310:         dx1 = -127;
                    311:     if (dy1 > 127)
                    312:         dy1 = 127;
                    313:     else if (dy1 < -127)
                    314:         dy1 = -127;
                    315:     b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07);
                    316:     ps2_queue(&s->common, b);
                    317:     ps2_queue(&s->common, dx1 & 0xff);
                    318:     ps2_queue(&s->common, dy1 & 0xff);
                    319:     /* extra byte for IMPS/2 or IMEX */
                    320:     switch(s->mouse_type) {
                    321:     default:
                    322:         break;
                    323:     case 3:
                    324:         if (dz1 > 127)
                    325:             dz1 = 127;
                    326:         else if (dz1 < -127)
                    327:                 dz1 = -127;
                    328:         ps2_queue(&s->common, dz1 & 0xff);
                    329:         break;
                    330:     case 4:
                    331:         if (dz1 > 7)
                    332:             dz1 = 7;
                    333:         else if (dz1 < -7)
                    334:             dz1 = -7;
                    335:         b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1);
                    336:         ps2_queue(&s->common, b);
                    337:         break;
                    338:     }
                    339: 
                    340:     /* update deltas */
                    341:     s->mouse_dx -= dx1;
                    342:     s->mouse_dy -= dy1;
                    343:     s->mouse_dz -= dz1;
                    344: }
                    345: 
1.1.1.4   root      346: static void ps2_mouse_event(void *opaque,
1.1       root      347:                             int dx, int dy, int dz, int buttons_state)
                    348: {
                    349:     PS2MouseState *s = opaque;
                    350: 
                    351:     /* check if deltas are recorded when disabled */
                    352:     if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
                    353:         return;
                    354: 
                    355:     s->mouse_dx += dx;
                    356:     s->mouse_dy -= dy;
                    357:     s->mouse_dz += dz;
                    358:     /* XXX: SDL sometimes generates nul events: we delete them */
                    359:     if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0 &&
                    360:         s->mouse_buttons == buttons_state)
                    361:        return;
                    362:     s->mouse_buttons = buttons_state;
1.1.1.4   root      363: 
1.1       root      364:     if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
                    365:         (s->common.queue.count < (PS2_QUEUE_SIZE - 16))) {
                    366:         for(;;) {
                    367:             /* if not remote, send event. Multiple events are sent if
                    368:                too big deltas */
                    369:             ps2_mouse_send_packet(s);
                    370:             if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0)
                    371:                 break;
                    372:         }
                    373:     }
                    374: }
                    375: 
1.1.1.4   root      376: void ps2_mouse_fake_event(void *opaque)
                    377: {
                    378:     ps2_mouse_event(opaque, 1, 0, 0, 0);
                    379: }
                    380: 
1.1       root      381: void ps2_write_mouse(void *opaque, int val)
                    382: {
                    383:     PS2MouseState *s = (PS2MouseState *)opaque;
                    384: #ifdef DEBUG_MOUSE
                    385:     printf("kbd: write mouse 0x%02x\n", val);
                    386: #endif
                    387:     switch(s->common.write_cmd) {
                    388:     default:
                    389:     case -1:
                    390:         /* mouse command */
                    391:         if (s->mouse_wrap) {
                    392:             if (val == AUX_RESET_WRAP) {
                    393:                 s->mouse_wrap = 0;
                    394:                 ps2_queue(&s->common, AUX_ACK);
                    395:                 return;
                    396:             } else if (val != AUX_RESET) {
                    397:                 ps2_queue(&s->common, val);
                    398:                 return;
                    399:             }
                    400:         }
                    401:         switch(val) {
                    402:         case AUX_SET_SCALE11:
                    403:             s->mouse_status &= ~MOUSE_STATUS_SCALE21;
                    404:             ps2_queue(&s->common, AUX_ACK);
                    405:             break;
                    406:         case AUX_SET_SCALE21:
                    407:             s->mouse_status |= MOUSE_STATUS_SCALE21;
                    408:             ps2_queue(&s->common, AUX_ACK);
                    409:             break;
                    410:         case AUX_SET_STREAM:
                    411:             s->mouse_status &= ~MOUSE_STATUS_REMOTE;
                    412:             ps2_queue(&s->common, AUX_ACK);
                    413:             break;
                    414:         case AUX_SET_WRAP:
                    415:             s->mouse_wrap = 1;
                    416:             ps2_queue(&s->common, AUX_ACK);
                    417:             break;
                    418:         case AUX_SET_REMOTE:
                    419:             s->mouse_status |= MOUSE_STATUS_REMOTE;
                    420:             ps2_queue(&s->common, AUX_ACK);
                    421:             break;
                    422:         case AUX_GET_TYPE:
                    423:             ps2_queue(&s->common, AUX_ACK);
                    424:             ps2_queue(&s->common, s->mouse_type);
                    425:             break;
                    426:         case AUX_SET_RES:
                    427:         case AUX_SET_SAMPLE:
                    428:             s->common.write_cmd = val;
                    429:             ps2_queue(&s->common, AUX_ACK);
                    430:             break;
                    431:         case AUX_GET_SCALE:
                    432:             ps2_queue(&s->common, AUX_ACK);
                    433:             ps2_queue(&s->common, s->mouse_status);
                    434:             ps2_queue(&s->common, s->mouse_resolution);
                    435:             ps2_queue(&s->common, s->mouse_sample_rate);
                    436:             break;
                    437:         case AUX_POLL:
                    438:             ps2_queue(&s->common, AUX_ACK);
                    439:             ps2_mouse_send_packet(s);
                    440:             break;
                    441:         case AUX_ENABLE_DEV:
                    442:             s->mouse_status |= MOUSE_STATUS_ENABLED;
                    443:             ps2_queue(&s->common, AUX_ACK);
                    444:             break;
                    445:         case AUX_DISABLE_DEV:
                    446:             s->mouse_status &= ~MOUSE_STATUS_ENABLED;
                    447:             ps2_queue(&s->common, AUX_ACK);
                    448:             break;
                    449:         case AUX_SET_DEFAULT:
                    450:             s->mouse_sample_rate = 100;
                    451:             s->mouse_resolution = 2;
                    452:             s->mouse_status = 0;
                    453:             ps2_queue(&s->common, AUX_ACK);
                    454:             break;
                    455:         case AUX_RESET:
                    456:             s->mouse_sample_rate = 100;
                    457:             s->mouse_resolution = 2;
                    458:             s->mouse_status = 0;
                    459:             s->mouse_type = 0;
                    460:             ps2_queue(&s->common, AUX_ACK);
                    461:             ps2_queue(&s->common, 0xaa);
                    462:             ps2_queue(&s->common, s->mouse_type);
                    463:             break;
                    464:         default:
                    465:             break;
                    466:         }
                    467:         break;
                    468:     case AUX_SET_SAMPLE:
                    469:         s->mouse_sample_rate = val;
                    470:         /* detect IMPS/2 or IMEX */
                    471:         switch(s->mouse_detect_state) {
                    472:         default:
                    473:         case 0:
                    474:             if (val == 200)
                    475:                 s->mouse_detect_state = 1;
                    476:             break;
                    477:         case 1:
                    478:             if (val == 100)
                    479:                 s->mouse_detect_state = 2;
                    480:             else if (val == 200)
                    481:                 s->mouse_detect_state = 3;
                    482:             else
                    483:                 s->mouse_detect_state = 0;
                    484:             break;
                    485:         case 2:
1.1.1.4   root      486:             if (val == 80)
1.1       root      487:                 s->mouse_type = 3; /* IMPS/2 */
                    488:             s->mouse_detect_state = 0;
                    489:             break;
                    490:         case 3:
1.1.1.4   root      491:             if (val == 80)
1.1       root      492:                 s->mouse_type = 4; /* IMEX */
                    493:             s->mouse_detect_state = 0;
                    494:             break;
                    495:         }
                    496:         ps2_queue(&s->common, AUX_ACK);
                    497:         s->common.write_cmd = -1;
                    498:         break;
                    499:     case AUX_SET_RES:
                    500:         s->mouse_resolution = val;
                    501:         ps2_queue(&s->common, AUX_ACK);
                    502:         s->common.write_cmd = -1;
                    503:         break;
                    504:     }
                    505: }
                    506: 
1.1.1.6   root      507: static void ps2_common_reset(PS2State *s)
1.1       root      508: {
                    509:     PS2Queue *q;
                    510:     s->write_cmd = -1;
                    511:     q = &s->queue;
                    512:     q->rptr = 0;
                    513:     q->wptr = 0;
                    514:     q->count = 0;
1.1.1.5   root      515:     s->update_irq(s->update_arg, 0);
1.1       root      516: }
                    517: 
1.1.1.6   root      518: static void ps2_kbd_reset(void *opaque)
                    519: {
                    520:     PS2KbdState *s = (PS2KbdState *) opaque;
                    521: 
                    522:     ps2_common_reset(&s->common);
                    523:     s->scan_enabled = 0;
                    524:     s->translate = 0;
                    525:     s->scancode_set = 0;
                    526: }
                    527: 
                    528: static void ps2_mouse_reset(void *opaque)
                    529: {
                    530:     PS2MouseState *s = (PS2MouseState *) opaque;
                    531: 
                    532:     ps2_common_reset(&s->common);
                    533:     s->mouse_status = 0;
                    534:     s->mouse_resolution = 0;
                    535:     s->mouse_sample_rate = 0;
                    536:     s->mouse_wrap = 0;
                    537:     s->mouse_type = 0;
                    538:     s->mouse_detect_state = 0;
                    539:     s->mouse_dx = 0;
                    540:     s->mouse_dy = 0;
                    541:     s->mouse_dz = 0;
                    542:     s->mouse_buttons = 0;
                    543: }
                    544: 
1.1.1.7   root      545: static const VMStateDescription vmstate_ps2_common = {
                    546:     .name = "PS2 Common State",
                    547:     .version_id = 3,
                    548:     .minimum_version_id = 2,
                    549:     .minimum_version_id_old = 2,
                    550:     .fields      = (VMStateField []) {
                    551:         VMSTATE_INT32(write_cmd, PS2State),
                    552:         VMSTATE_INT32(queue.rptr, PS2State),
                    553:         VMSTATE_INT32(queue.wptr, PS2State),
                    554:         VMSTATE_INT32(queue.count, PS2State),
                    555:         VMSTATE_BUFFER(queue.data, PS2State),
                    556:         VMSTATE_END_OF_LIST()
                    557:     }
                    558: };
1.1       root      559: 
1.1.1.7   root      560: static int ps2_kbd_post_load(void* opaque, int version_id)
1.1       root      561: {
                    562:     PS2KbdState *s = (PS2KbdState*)opaque;
1.1.1.2   root      563: 
1.1.1.7   root      564:     if (version_id == 2)
1.1.1.5   root      565:         s->scancode_set=2;
1.1       root      566:     return 0;
                    567: }
                    568: 
1.1.1.7   root      569: static const VMStateDescription vmstate_ps2_keyboard = {
                    570:     .name = "ps2kbd",
                    571:     .version_id = 3,
                    572:     .minimum_version_id = 2,
                    573:     .minimum_version_id_old = 2,
                    574:     .post_load = ps2_kbd_post_load,
                    575:     .fields      = (VMStateField []) {
                    576:         VMSTATE_STRUCT(common, PS2KbdState, 0, vmstate_ps2_common, PS2State),
                    577:         VMSTATE_INT32(scan_enabled, PS2KbdState),
                    578:         VMSTATE_INT32(translate, PS2KbdState),
                    579:         VMSTATE_INT32_V(scancode_set, PS2KbdState,3),
                    580:         VMSTATE_END_OF_LIST()
                    581:     }
                    582: };
                    583: 
                    584: static const VMStateDescription vmstate_ps2_mouse = {
                    585:     .name = "ps2mouse",
                    586:     .version_id = 2,
                    587:     .minimum_version_id = 2,
                    588:     .minimum_version_id_old = 2,
                    589:     .fields      = (VMStateField []) {
                    590:         VMSTATE_STRUCT(common, PS2MouseState, 0, vmstate_ps2_common, PS2State),
                    591:         VMSTATE_UINT8(mouse_status, PS2MouseState),
                    592:         VMSTATE_UINT8(mouse_resolution, PS2MouseState),
                    593:         VMSTATE_UINT8(mouse_sample_rate, PS2MouseState),
                    594:         VMSTATE_UINT8(mouse_wrap, PS2MouseState),
                    595:         VMSTATE_UINT8(mouse_type, PS2MouseState),
                    596:         VMSTATE_UINT8(mouse_detect_state, PS2MouseState),
                    597:         VMSTATE_INT32(mouse_dx, PS2MouseState),
                    598:         VMSTATE_INT32(mouse_dy, PS2MouseState),
                    599:         VMSTATE_INT32(mouse_dz, PS2MouseState),
                    600:         VMSTATE_UINT8(mouse_buttons, PS2MouseState),
                    601:         VMSTATE_END_OF_LIST()
                    602:     }
                    603: };
1.1       root      604: 
                    605: void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg)
                    606: {
                    607:     PS2KbdState *s = (PS2KbdState *)qemu_mallocz(sizeof(PS2KbdState));
                    608: 
                    609:     s->common.update_irq = update_irq;
                    610:     s->common.update_arg = update_arg;
1.1.1.5   root      611:     s->scancode_set = 2;
1.1.1.8   root      612:     vmstate_register(NULL, 0, &vmstate_ps2_keyboard, s);
1.1       root      613:     qemu_add_kbd_event_handler(ps2_put_keycode, s);
1.1.1.6   root      614:     qemu_register_reset(ps2_kbd_reset, s);
1.1       root      615:     return s;
                    616: }
                    617: 
                    618: void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg)
                    619: {
                    620:     PS2MouseState *s = (PS2MouseState *)qemu_mallocz(sizeof(PS2MouseState));
                    621: 
                    622:     s->common.update_irq = update_irq;
                    623:     s->common.update_arg = update_arg;
1.1.1.8   root      624:     vmstate_register(NULL, 0, &vmstate_ps2_mouse, s);
1.1.1.3   root      625:     qemu_add_mouse_event_handler(ps2_mouse_event, s, 0, "QEMU PS/2 Mouse");
1.1.1.6   root      626:     qemu_register_reset(ps2_mouse_reset, s);
1.1       root      627:     return s;
                    628: }

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