Annotation of qemu/hw/ps2.c, revision 1.1.1.10

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 */
1.1.1.10! root       95:     int ledstate;
1.1       root       96: } PS2KbdState;
                     97: 
                     98: typedef struct {
                     99:     PS2State common;
                    100:     uint8_t mouse_status;
                    101:     uint8_t mouse_resolution;
                    102:     uint8_t mouse_sample_rate;
                    103:     uint8_t mouse_wrap;
                    104:     uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */
                    105:     uint8_t mouse_detect_state;
                    106:     int mouse_dx; /* current values, needed for 'poll' mode */
                    107:     int mouse_dy;
                    108:     int mouse_dz;
                    109:     uint8_t mouse_buttons;
                    110: } PS2MouseState;
                    111: 
1.1.1.2   root      112: /* Table to convert from PC scancodes to raw scancodes.  */
                    113: static const unsigned char ps2_raw_keycode[128] = {
1.1.1.9   root      114:   0, 118,  22,  30,  38,  37,  46,  54,  61,  62,  70,  69,  78,  85, 102,  13,
                    115:  21,  29,  36,  45,  44,  53,  60,  67,  68,  77,  84,  91,  90,  20,  28,  27,
                    116:  35,  43,  52,  51,  59,  66,  75,  76,  82,  14,  18,  93,  26,  34,  33,  42,
                    117:  50,  49,  58,  65,  73,  74,  89, 124,  17,  41,  88,   5,   6,   4,  12,   3,
                    118:  11,   2,  10,   1,   9, 119, 126, 108, 117, 125, 123, 107, 115, 116, 121, 105,
                    119: 114, 122, 112, 113, 127,  96,  97, 120,   7,  15,  23,  31,  39,  47,  55,  63,
                    120:  71,  79,  86,  94,   8,  16,  24,  32,  40,  48,  56,  64,  72,  80,  87, 111,
                    121:  19,  25,  57,  81,  83,  92,  95,  98,  99, 100, 101, 103, 104, 106, 109, 110
                    122: };
                    123: static const unsigned char ps2_raw_keycode_set3[128] = {
                    124:   0,   8,  22,  30,  38,  37,  46,  54,  61,  62,  70,  69,  78,  85, 102,  13,
                    125:  21,  29,  36,  45,  44,  53,  60,  67,  68,  77,  84,  91,  90,  17,  28,  27,
                    126:  35,  43,  52,  51,  59,  66,  75,  76,  82,  14,  18,  92,  26,  34,  33,  42,
                    127:  50,  49,  58,  65,  73,  74,  89, 126,  25,  41,  20,   7,  15,  23,  31,  39,
                    128:  47,   2,  63,  71,  79, 118,  95, 108, 117, 125, 132, 107, 115, 116, 124, 105,
                    129: 114, 122, 112, 113, 127,  96,  97,  86,  94,  15,  23,  31,  39,  47,  55,  63,
                    130:  71,  79,  86,  94,   8,  16,  24,  32,  40,  48,  56,  64,  72,  80,  87, 111,
                    131:  19,  25,  57,  81,  83,  92,  95,  98,  99, 100, 101, 103, 104, 106, 109, 110
1.1.1.2   root      132: };
                    133: 
1.1       root      134: void ps2_queue(void *opaque, int b)
                    135: {
                    136:     PS2State *s = (PS2State *)opaque;
                    137:     PS2Queue *q = &s->queue;
                    138: 
                    139:     if (q->count >= PS2_QUEUE_SIZE)
                    140:         return;
                    141:     q->data[q->wptr] = b;
                    142:     if (++q->wptr == PS2_QUEUE_SIZE)
                    143:         q->wptr = 0;
                    144:     q->count++;
                    145:     s->update_irq(s->update_arg, 1);
                    146: }
                    147: 
1.1.1.5   root      148: /*
                    149:    keycode is expressed as follow:
                    150:    bit 7    - 0 key pressed, 1 = key released
                    151:    bits 6-0 - translated scancode set 2
                    152:  */
1.1       root      153: static void ps2_put_keycode(void *opaque, int keycode)
                    154: {
1.1.1.2   root      155:     PS2KbdState *s = opaque;
1.1.1.5   root      156: 
1.1.1.9   root      157:     /* XXX: add support for scancode set 1 */
                    158:     if (!s->translate && keycode < 0xe0 && s->scancode_set > 1) {
                    159:         if (keycode & 0x80) {
1.1.1.2   root      160:             ps2_queue(&s->common, 0xf0);
1.1.1.9   root      161:         }
                    162:         if (s->scancode_set == 2) {
                    163:             keycode = ps2_raw_keycode[keycode & 0x7f];
                    164:         } else if (s->scancode_set == 3) {
                    165:             keycode = ps2_raw_keycode_set3[keycode & 0x7f];
                    166:         }
1.1.1.2   root      167:       }
1.1       root      168:     ps2_queue(&s->common, keycode);
                    169: }
                    170: 
                    171: uint32_t ps2_read_data(void *opaque)
                    172: {
                    173:     PS2State *s = (PS2State *)opaque;
                    174:     PS2Queue *q;
                    175:     int val, index;
1.1.1.4   root      176: 
1.1       root      177:     q = &s->queue;
                    178:     if (q->count == 0) {
                    179:         /* NOTE: if no data left, we return the last keyboard one
                    180:            (needed for EMM386) */
                    181:         /* XXX: need a timer to do things correctly */
                    182:         index = q->rptr - 1;
                    183:         if (index < 0)
                    184:             index = PS2_QUEUE_SIZE - 1;
                    185:         val = q->data[index];
                    186:     } else {
                    187:         val = q->data[q->rptr];
                    188:         if (++q->rptr == PS2_QUEUE_SIZE)
                    189:             q->rptr = 0;
                    190:         q->count--;
                    191:         /* reading deasserts IRQ */
                    192:         s->update_irq(s->update_arg, 0);
                    193:         /* reassert IRQs if data left */
                    194:         s->update_irq(s->update_arg, q->count != 0);
                    195:     }
                    196:     return val;
                    197: }
                    198: 
1.1.1.10! root      199: static void ps2_set_ledstate(PS2KbdState *s, int ledstate)
        !           200: {
        !           201:     s->ledstate = ledstate;
        !           202:     kbd_put_ledstate(ledstate);
        !           203: }
        !           204: 
1.1       root      205: static void ps2_reset_keyboard(PS2KbdState *s)
                    206: {
                    207:     s->scan_enabled = 1;
1.1.1.5   root      208:     s->scancode_set = 2;
1.1.1.10! root      209:     ps2_set_ledstate(s, 0);
1.1       root      210: }
                    211: 
                    212: void ps2_write_keyboard(void *opaque, int val)
                    213: {
                    214:     PS2KbdState *s = (PS2KbdState *)opaque;
                    215: 
                    216:     switch(s->common.write_cmd) {
                    217:     default:
                    218:     case -1:
                    219:         switch(val) {
                    220:         case 0x00:
                    221:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    222:             break;
                    223:         case 0x05:
                    224:             ps2_queue(&s->common, KBD_REPLY_RESEND);
                    225:             break;
                    226:         case KBD_CMD_GET_ID:
                    227:             ps2_queue(&s->common, KBD_REPLY_ACK);
1.1.1.5   root      228:             /* We emulate a MF2 AT keyboard here */
                    229:             ps2_queue(&s->common, KBD_REPLY_ID);
                    230:             if (s->translate)
                    231:                 ps2_queue(&s->common, 0x41);
                    232:             else
                    233:                 ps2_queue(&s->common, 0x83);
1.1       root      234:             break;
                    235:         case KBD_CMD_ECHO:
                    236:             ps2_queue(&s->common, KBD_CMD_ECHO);
                    237:             break;
                    238:         case KBD_CMD_ENABLE:
                    239:             s->scan_enabled = 1;
                    240:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    241:             break;
1.1.1.5   root      242:         case KBD_CMD_SCANCODE:
1.1       root      243:         case KBD_CMD_SET_LEDS:
                    244:         case KBD_CMD_SET_RATE:
                    245:             s->common.write_cmd = val;
                    246:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    247:             break;
                    248:         case KBD_CMD_RESET_DISABLE:
                    249:             ps2_reset_keyboard(s);
                    250:             s->scan_enabled = 0;
                    251:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    252:             break;
                    253:         case KBD_CMD_RESET_ENABLE:
                    254:             ps2_reset_keyboard(s);
                    255:             s->scan_enabled = 1;
                    256:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    257:             break;
                    258:         case KBD_CMD_RESET:
                    259:             ps2_reset_keyboard(s);
                    260:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    261:             ps2_queue(&s->common, KBD_REPLY_POR);
                    262:             break;
                    263:         default:
                    264:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    265:             break;
                    266:         }
                    267:         break;
1.1.1.5   root      268:     case KBD_CMD_SCANCODE:
                    269:         if (val == 0) {
                    270:             if (s->scancode_set == 1)
                    271:                 ps2_put_keycode(s, 0x43);
                    272:             else if (s->scancode_set == 2)
                    273:                 ps2_put_keycode(s, 0x41);
                    274:             else if (s->scancode_set == 3)
                    275:                 ps2_put_keycode(s, 0x3f);
                    276:         } else {
                    277:             if (val >= 1 && val <= 3)
                    278:                 s->scancode_set = val;
                    279:             ps2_queue(&s->common, KBD_REPLY_ACK);
                    280:         }
                    281:         s->common.write_cmd = -1;
                    282:         break;
1.1       root      283:     case KBD_CMD_SET_LEDS:
1.1.1.10! root      284:         ps2_set_ledstate(s, val);
1.1       root      285:         ps2_queue(&s->common, KBD_REPLY_ACK);
                    286:         s->common.write_cmd = -1;
                    287:         break;
                    288:     case KBD_CMD_SET_RATE:
                    289:         ps2_queue(&s->common, KBD_REPLY_ACK);
                    290:         s->common.write_cmd = -1;
                    291:         break;
                    292:     }
                    293: }
                    294: 
1.1.1.2   root      295: /* Set the scancode translation mode.
                    296:    0 = raw scancodes.
                    297:    1 = translated scancodes (used by qemu internally).  */
                    298: 
                    299: void ps2_keyboard_set_translation(void *opaque, int mode)
                    300: {
                    301:     PS2KbdState *s = (PS2KbdState *)opaque;
                    302:     s->translate = mode;
                    303: }
                    304: 
1.1       root      305: static void ps2_mouse_send_packet(PS2MouseState *s)
                    306: {
                    307:     unsigned int b;
                    308:     int dx1, dy1, dz1;
                    309: 
                    310:     dx1 = s->mouse_dx;
                    311:     dy1 = s->mouse_dy;
                    312:     dz1 = s->mouse_dz;
                    313:     /* XXX: increase range to 8 bits ? */
                    314:     if (dx1 > 127)
                    315:         dx1 = 127;
                    316:     else if (dx1 < -127)
                    317:         dx1 = -127;
                    318:     if (dy1 > 127)
                    319:         dy1 = 127;
                    320:     else if (dy1 < -127)
                    321:         dy1 = -127;
                    322:     b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07);
                    323:     ps2_queue(&s->common, b);
                    324:     ps2_queue(&s->common, dx1 & 0xff);
                    325:     ps2_queue(&s->common, dy1 & 0xff);
                    326:     /* extra byte for IMPS/2 or IMEX */
                    327:     switch(s->mouse_type) {
                    328:     default:
                    329:         break;
                    330:     case 3:
                    331:         if (dz1 > 127)
                    332:             dz1 = 127;
                    333:         else if (dz1 < -127)
                    334:                 dz1 = -127;
                    335:         ps2_queue(&s->common, dz1 & 0xff);
                    336:         break;
                    337:     case 4:
                    338:         if (dz1 > 7)
                    339:             dz1 = 7;
                    340:         else if (dz1 < -7)
                    341:             dz1 = -7;
                    342:         b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1);
                    343:         ps2_queue(&s->common, b);
                    344:         break;
                    345:     }
                    346: 
                    347:     /* update deltas */
                    348:     s->mouse_dx -= dx1;
                    349:     s->mouse_dy -= dy1;
                    350:     s->mouse_dz -= dz1;
                    351: }
                    352: 
1.1.1.4   root      353: static void ps2_mouse_event(void *opaque,
1.1       root      354:                             int dx, int dy, int dz, int buttons_state)
                    355: {
                    356:     PS2MouseState *s = opaque;
                    357: 
                    358:     /* check if deltas are recorded when disabled */
                    359:     if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
                    360:         return;
                    361: 
                    362:     s->mouse_dx += dx;
                    363:     s->mouse_dy -= dy;
                    364:     s->mouse_dz += dz;
                    365:     /* XXX: SDL sometimes generates nul events: we delete them */
                    366:     if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0 &&
                    367:         s->mouse_buttons == buttons_state)
                    368:        return;
                    369:     s->mouse_buttons = buttons_state;
1.1.1.4   root      370: 
1.1       root      371:     if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
                    372:         (s->common.queue.count < (PS2_QUEUE_SIZE - 16))) {
                    373:         for(;;) {
                    374:             /* if not remote, send event. Multiple events are sent if
                    375:                too big deltas */
                    376:             ps2_mouse_send_packet(s);
                    377:             if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0)
                    378:                 break;
                    379:         }
                    380:     }
                    381: }
                    382: 
1.1.1.4   root      383: void ps2_mouse_fake_event(void *opaque)
                    384: {
                    385:     ps2_mouse_event(opaque, 1, 0, 0, 0);
                    386: }
                    387: 
1.1       root      388: void ps2_write_mouse(void *opaque, int val)
                    389: {
                    390:     PS2MouseState *s = (PS2MouseState *)opaque;
                    391: #ifdef DEBUG_MOUSE
                    392:     printf("kbd: write mouse 0x%02x\n", val);
                    393: #endif
                    394:     switch(s->common.write_cmd) {
                    395:     default:
                    396:     case -1:
                    397:         /* mouse command */
                    398:         if (s->mouse_wrap) {
                    399:             if (val == AUX_RESET_WRAP) {
                    400:                 s->mouse_wrap = 0;
                    401:                 ps2_queue(&s->common, AUX_ACK);
                    402:                 return;
                    403:             } else if (val != AUX_RESET) {
                    404:                 ps2_queue(&s->common, val);
                    405:                 return;
                    406:             }
                    407:         }
                    408:         switch(val) {
                    409:         case AUX_SET_SCALE11:
                    410:             s->mouse_status &= ~MOUSE_STATUS_SCALE21;
                    411:             ps2_queue(&s->common, AUX_ACK);
                    412:             break;
                    413:         case AUX_SET_SCALE21:
                    414:             s->mouse_status |= MOUSE_STATUS_SCALE21;
                    415:             ps2_queue(&s->common, AUX_ACK);
                    416:             break;
                    417:         case AUX_SET_STREAM:
                    418:             s->mouse_status &= ~MOUSE_STATUS_REMOTE;
                    419:             ps2_queue(&s->common, AUX_ACK);
                    420:             break;
                    421:         case AUX_SET_WRAP:
                    422:             s->mouse_wrap = 1;
                    423:             ps2_queue(&s->common, AUX_ACK);
                    424:             break;
                    425:         case AUX_SET_REMOTE:
                    426:             s->mouse_status |= MOUSE_STATUS_REMOTE;
                    427:             ps2_queue(&s->common, AUX_ACK);
                    428:             break;
                    429:         case AUX_GET_TYPE:
                    430:             ps2_queue(&s->common, AUX_ACK);
                    431:             ps2_queue(&s->common, s->mouse_type);
                    432:             break;
                    433:         case AUX_SET_RES:
                    434:         case AUX_SET_SAMPLE:
                    435:             s->common.write_cmd = val;
                    436:             ps2_queue(&s->common, AUX_ACK);
                    437:             break;
                    438:         case AUX_GET_SCALE:
                    439:             ps2_queue(&s->common, AUX_ACK);
                    440:             ps2_queue(&s->common, s->mouse_status);
                    441:             ps2_queue(&s->common, s->mouse_resolution);
                    442:             ps2_queue(&s->common, s->mouse_sample_rate);
                    443:             break;
                    444:         case AUX_POLL:
                    445:             ps2_queue(&s->common, AUX_ACK);
                    446:             ps2_mouse_send_packet(s);
                    447:             break;
                    448:         case AUX_ENABLE_DEV:
                    449:             s->mouse_status |= MOUSE_STATUS_ENABLED;
                    450:             ps2_queue(&s->common, AUX_ACK);
                    451:             break;
                    452:         case AUX_DISABLE_DEV:
                    453:             s->mouse_status &= ~MOUSE_STATUS_ENABLED;
                    454:             ps2_queue(&s->common, AUX_ACK);
                    455:             break;
                    456:         case AUX_SET_DEFAULT:
                    457:             s->mouse_sample_rate = 100;
                    458:             s->mouse_resolution = 2;
                    459:             s->mouse_status = 0;
                    460:             ps2_queue(&s->common, AUX_ACK);
                    461:             break;
                    462:         case AUX_RESET:
                    463:             s->mouse_sample_rate = 100;
                    464:             s->mouse_resolution = 2;
                    465:             s->mouse_status = 0;
                    466:             s->mouse_type = 0;
                    467:             ps2_queue(&s->common, AUX_ACK);
                    468:             ps2_queue(&s->common, 0xaa);
                    469:             ps2_queue(&s->common, s->mouse_type);
                    470:             break;
                    471:         default:
                    472:             break;
                    473:         }
                    474:         break;
                    475:     case AUX_SET_SAMPLE:
                    476:         s->mouse_sample_rate = val;
                    477:         /* detect IMPS/2 or IMEX */
                    478:         switch(s->mouse_detect_state) {
                    479:         default:
                    480:         case 0:
                    481:             if (val == 200)
                    482:                 s->mouse_detect_state = 1;
                    483:             break;
                    484:         case 1:
                    485:             if (val == 100)
                    486:                 s->mouse_detect_state = 2;
                    487:             else if (val == 200)
                    488:                 s->mouse_detect_state = 3;
                    489:             else
                    490:                 s->mouse_detect_state = 0;
                    491:             break;
                    492:         case 2:
1.1.1.4   root      493:             if (val == 80)
1.1       root      494:                 s->mouse_type = 3; /* IMPS/2 */
                    495:             s->mouse_detect_state = 0;
                    496:             break;
                    497:         case 3:
1.1.1.4   root      498:             if (val == 80)
1.1       root      499:                 s->mouse_type = 4; /* IMEX */
                    500:             s->mouse_detect_state = 0;
                    501:             break;
                    502:         }
                    503:         ps2_queue(&s->common, AUX_ACK);
                    504:         s->common.write_cmd = -1;
                    505:         break;
                    506:     case AUX_SET_RES:
                    507:         s->mouse_resolution = val;
                    508:         ps2_queue(&s->common, AUX_ACK);
                    509:         s->common.write_cmd = -1;
                    510:         break;
                    511:     }
                    512: }
                    513: 
1.1.1.6   root      514: static void ps2_common_reset(PS2State *s)
1.1       root      515: {
                    516:     PS2Queue *q;
                    517:     s->write_cmd = -1;
                    518:     q = &s->queue;
                    519:     q->rptr = 0;
                    520:     q->wptr = 0;
                    521:     q->count = 0;
1.1.1.5   root      522:     s->update_irq(s->update_arg, 0);
1.1       root      523: }
                    524: 
1.1.1.6   root      525: static void ps2_kbd_reset(void *opaque)
                    526: {
                    527:     PS2KbdState *s = (PS2KbdState *) opaque;
                    528: 
                    529:     ps2_common_reset(&s->common);
                    530:     s->scan_enabled = 0;
                    531:     s->translate = 0;
                    532:     s->scancode_set = 0;
                    533: }
                    534: 
                    535: static void ps2_mouse_reset(void *opaque)
                    536: {
                    537:     PS2MouseState *s = (PS2MouseState *) opaque;
                    538: 
                    539:     ps2_common_reset(&s->common);
                    540:     s->mouse_status = 0;
                    541:     s->mouse_resolution = 0;
                    542:     s->mouse_sample_rate = 0;
                    543:     s->mouse_wrap = 0;
                    544:     s->mouse_type = 0;
                    545:     s->mouse_detect_state = 0;
                    546:     s->mouse_dx = 0;
                    547:     s->mouse_dy = 0;
                    548:     s->mouse_dz = 0;
                    549:     s->mouse_buttons = 0;
                    550: }
                    551: 
1.1.1.7   root      552: static const VMStateDescription vmstate_ps2_common = {
                    553:     .name = "PS2 Common State",
                    554:     .version_id = 3,
                    555:     .minimum_version_id = 2,
                    556:     .minimum_version_id_old = 2,
                    557:     .fields      = (VMStateField []) {
                    558:         VMSTATE_INT32(write_cmd, PS2State),
                    559:         VMSTATE_INT32(queue.rptr, PS2State),
                    560:         VMSTATE_INT32(queue.wptr, PS2State),
                    561:         VMSTATE_INT32(queue.count, PS2State),
                    562:         VMSTATE_BUFFER(queue.data, PS2State),
                    563:         VMSTATE_END_OF_LIST()
                    564:     }
                    565: };
1.1       root      566: 
1.1.1.10! root      567: static bool ps2_keyboard_ledstate_needed(void *opaque)
        !           568: {
        !           569:     PS2KbdState *s = opaque;
        !           570: 
        !           571:     return s->ledstate != 0; /* 0 is default state */
        !           572: }
        !           573: 
        !           574: static int ps2_kbd_ledstate_post_load(void *opaque, int version_id)
        !           575: {
        !           576:     PS2KbdState *s = opaque;
        !           577: 
        !           578:     kbd_put_ledstate(s->ledstate);
        !           579:     return 0;
        !           580: }
        !           581: 
        !           582: static const VMStateDescription vmstate_ps2_keyboard_ledstate = {
        !           583:     .name = "ps2kbd/ledstate",
        !           584:     .version_id = 3,
        !           585:     .minimum_version_id = 2,
        !           586:     .minimum_version_id_old = 2,
        !           587:     .post_load = ps2_kbd_ledstate_post_load,
        !           588:     .fields      = (VMStateField []) {
        !           589:         VMSTATE_INT32(ledstate, PS2KbdState),
        !           590:         VMSTATE_END_OF_LIST()
        !           591:     }
        !           592: };
        !           593: 
1.1.1.7   root      594: static int ps2_kbd_post_load(void* opaque, int version_id)
1.1       root      595: {
                    596:     PS2KbdState *s = (PS2KbdState*)opaque;
1.1.1.2   root      597: 
1.1.1.7   root      598:     if (version_id == 2)
1.1.1.5   root      599:         s->scancode_set=2;
1.1       root      600:     return 0;
                    601: }
                    602: 
1.1.1.7   root      603: static const VMStateDescription vmstate_ps2_keyboard = {
                    604:     .name = "ps2kbd",
                    605:     .version_id = 3,
                    606:     .minimum_version_id = 2,
                    607:     .minimum_version_id_old = 2,
                    608:     .post_load = ps2_kbd_post_load,
                    609:     .fields      = (VMStateField []) {
                    610:         VMSTATE_STRUCT(common, PS2KbdState, 0, vmstate_ps2_common, PS2State),
                    611:         VMSTATE_INT32(scan_enabled, PS2KbdState),
                    612:         VMSTATE_INT32(translate, PS2KbdState),
                    613:         VMSTATE_INT32_V(scancode_set, PS2KbdState,3),
                    614:         VMSTATE_END_OF_LIST()
1.1.1.10! root      615:     },
        !           616:     .subsections = (VMStateSubsection []) {
        !           617:         {
        !           618:             .vmsd = &vmstate_ps2_keyboard_ledstate,
        !           619:             .needed = ps2_keyboard_ledstate_needed,
        !           620:         }, {
        !           621:             /* empty */
        !           622:         }
1.1.1.7   root      623:     }
                    624: };
                    625: 
                    626: static const VMStateDescription vmstate_ps2_mouse = {
                    627:     .name = "ps2mouse",
                    628:     .version_id = 2,
                    629:     .minimum_version_id = 2,
                    630:     .minimum_version_id_old = 2,
                    631:     .fields      = (VMStateField []) {
                    632:         VMSTATE_STRUCT(common, PS2MouseState, 0, vmstate_ps2_common, PS2State),
                    633:         VMSTATE_UINT8(mouse_status, PS2MouseState),
                    634:         VMSTATE_UINT8(mouse_resolution, PS2MouseState),
                    635:         VMSTATE_UINT8(mouse_sample_rate, PS2MouseState),
                    636:         VMSTATE_UINT8(mouse_wrap, PS2MouseState),
                    637:         VMSTATE_UINT8(mouse_type, PS2MouseState),
                    638:         VMSTATE_UINT8(mouse_detect_state, PS2MouseState),
                    639:         VMSTATE_INT32(mouse_dx, PS2MouseState),
                    640:         VMSTATE_INT32(mouse_dy, PS2MouseState),
                    641:         VMSTATE_INT32(mouse_dz, PS2MouseState),
                    642:         VMSTATE_UINT8(mouse_buttons, PS2MouseState),
                    643:         VMSTATE_END_OF_LIST()
                    644:     }
                    645: };
1.1       root      646: 
                    647: void *ps2_kbd_init(void (*update_irq)(void *, int), void *update_arg)
                    648: {
1.1.1.10! root      649:     PS2KbdState *s = (PS2KbdState *)g_malloc0(sizeof(PS2KbdState));
1.1       root      650: 
                    651:     s->common.update_irq = update_irq;
                    652:     s->common.update_arg = update_arg;
1.1.1.5   root      653:     s->scancode_set = 2;
1.1.1.8   root      654:     vmstate_register(NULL, 0, &vmstate_ps2_keyboard, s);
1.1       root      655:     qemu_add_kbd_event_handler(ps2_put_keycode, s);
1.1.1.6   root      656:     qemu_register_reset(ps2_kbd_reset, s);
1.1       root      657:     return s;
                    658: }
                    659: 
                    660: void *ps2_mouse_init(void (*update_irq)(void *, int), void *update_arg)
                    661: {
1.1.1.10! root      662:     PS2MouseState *s = (PS2MouseState *)g_malloc0(sizeof(PS2MouseState));
1.1       root      663: 
                    664:     s->common.update_irq = update_irq;
                    665:     s->common.update_arg = update_arg;
1.1.1.8   root      666:     vmstate_register(NULL, 0, &vmstate_ps2_mouse, s);
1.1.1.3   root      667:     qemu_add_mouse_event_handler(ps2_mouse_event, s, 0, "QEMU PS/2 Mouse");
1.1.1.6   root      668:     qemu_register_reset(ps2_mouse_reset, s);
1.1       root      669:     return s;
                    670: }

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