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| - | 1 | ; for information on PS2 mouse/keyboard programming |
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| - | 2 | ; refer to http://www.computer-engineering.org/ps2mouse/ |
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| - | 3 | ; and http://www.computer-engineering.org/ps2keyboard/ |
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| 1 | MouseSearch_PS2: |
4 | ; respectively |
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| 2 | - | ||
| 3 | pusha |
5 | |
| 4 | mov bl, 0xAD |
6 | MouseSearch_PS2: |
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| 5 | call kb_cmd |
7 | jmp .begin |
| 6 | 8 | ||
| - | 9 | .kb_cmd_c: |
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| 7 | mov bl,0xa8 ; enable mouse cmd |
10 | call kb_cmd |
| - | 11 | .check: |
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| - | 12 | cmp ah, 1 |
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| - | 13 | je @f |
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| - | 14 | ret |
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| 8 | call kb_cmd |
15 | @@: |
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| 9 | cmp ah,1 |
- | |
| 10 | je @@DataInputError |
16 | add esp, 4 ; return address |
| 11 | - | ||
| 12 | mov bl,0xd4 ; for mouse |
- | |
| 13 | call kb_cmd |
- | |
| 14 | cmp ah,1 |
17 | jmp .DataInputError |
| 15 | je @@DataInputError |
18 | |
| 16 | mov al,0xeb ; |
- | |
| 17 | call kb_write |
- | |
| 18 | cmp ah,1 |
- | |
| 19 | je @@DataInputError |
- | |
| 20 | call kb_read ; Acknowledge |
- | |
| 21 | call kb_read |
- | |
| 22 | mov [ps2_mouse_detected],0 |
- | |
| 23 | test al,18h |
- | |
| 24 | jz @f |
- | |
| 25 | mov [ps2_mouse_detected],1 |
- | |
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| 26 | @@: |
- | |
| 27 | call kb_read ; |
19 | .kb_write_c: |
| 28 | call kb_read ; |
- | |
| 29 | - | ||
| 30 | mov bl,0x20 ; get command byte |
20 | call kb_write |
| 31 | call kb_cmd |
21 | jmp .check |
| - | 22 | ||
| - | 23 | .kb_read_c: |
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| - | 24 | call kb_read |
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| - | 25 | jmp .check |
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| - | 26 | ||
| - | 27 | ;-------------------------------------------- |
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| 32 | cmp ah,1 |
28 | .begin: |
| - | 29 | pushad |
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| 33 | je @@DataInputError |
30 | |
| - | 31 | mov bl, 0xAD ; disable keyboard interface |
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| - | 32 | call .kb_cmd_c |
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| - | 33 | ||
| - | 34 | mov bl, 0xa8 ; enable mouse interface |
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| - | 35 | call .kb_cmd_c |
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| - | 36 | ||
| - | 37 | mov bl, 0xd4 ; to mouse |
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| - | 38 | call .kb_cmd_c |
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| - | 39 | mov al, 0xFF ; reset |
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| - | 40 | call .kb_write_c |
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| - | 41 | call .kb_read_c |
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| - | 42 | cmp al, 0xFA ; ack |
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| - | 43 | jne .no_ack |
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| - | 44 | ||
| - | 45 | ; now the mouse is in Reset Mode |
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| - | 46 | ; get the Basic Assurance Test completion code |
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| - | 47 | call .kb_read_c |
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| - | 48 | cmp al, 0xAA |
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| - | 49 | jne .dead_mouse |
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| - | 50 | ; get device ID |
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| - | 51 | call .kb_read_c |
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| - | 52 | cmp al, 0x00 |
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| - | 53 | jne .unknown_device |
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| 34 | call kb_read |
54 | |
| - | 55 | ; reset completed successfully |
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| - | 56 | ||
| - | 57 | ; enable mouse interrupt - IRQ12 |
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| 35 | cmp ah,1 |
58 | mov bl, 0x20 ; read command byte |
| - | 59 | call .kb_cmd_c |
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| 36 | je @@DataInputError |
60 | call .kb_read_c |
| 37 | or al,3 ; enable interrupt |
61 | or al, 10b ; set mouse IRQ bit |
| 38 | mov bl,0x60 ; write command |
62 | push eax |
| 39 | push eax |
- | |
| 40 | call kb_cmd |
- | |
| Line 41... | Line 63... | ||
| 41 | pop eax |
63 | mov bl, 0x60 ; write command byte |
| 42 | call kb_write |
64 | call .kb_cmd_c |
| - | 65 | pop eax |
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| - | 66 | call .kb_write_c |
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| - | 67 | ||
| 43 | cmp ah,1 |
68 | mov bl, 0xd4 ; to mouse |
| 44 | je @@DataInputError |
69 | call .kb_cmd_c |
| - | 70 | mov al, 0xf4 ; enable data reporting |
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| - | 71 | call .kb_write_c |
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| - | 72 | call .kb_read_c |
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| - | 73 | cmp al, 0xFA |
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| - | 74 | jne .no_ack |
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| - | 75 | ||
| 45 | 76 | ; jmp @f |
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| 46 | mov bl,0xd4 ; for mouse |
77 | ;.set_sample_rate: |
| - | 78 | ; push eax |
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| 47 | call kb_cmd |
79 | ; mov bl, 0xd4 ; to mouse |
| 48 | cmp ah,1 |
80 | ; call .kb_cmd_c |
| 49 | je @@DataInputError |
81 | ; mov al, 0xF3 ; set sample rate |
| - | 82 | ; call .kb_write_c |
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| - | 83 | ; call .kb_read_c ; ack |
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| - | 84 | ; pop eax |
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| 50 | mov al,0xf4 ; enable mouse device |
85 | ; call .kb_write_c |
| - | 86 | ; call .kb_read_c ; ack |
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| - | 87 | ; @@: |
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| 51 | call kb_write |
88 | ; mov eax, 200 |
| - | 89 | ; call .set_sample_rate |
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| - | 90 | ; mov eax, 100 |
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| - | 91 | ; call .set_sample_rate |
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| - | 92 | ; mov eax, 80 |
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| - | 93 | ; call .set_sample_rate |
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| - | 94 | ; mov bl, 0xd4 |
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| 52 | cmp ah,1 |
95 | ; call .kb_cmd_c |
| - | 96 | ; mov al, 0xF2 ; read device type |
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| - | 97 | ; call .kb_write_c |
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| - | 98 | ; call .kb_read_c ; ack |
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| 53 | je @@DataInputError |
99 | ; call .kb_read_c ; mouse ID |
| - | 100 | ; cmp al, 0x03 |
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| - | 101 | ; jne .no_scroll |
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| - | 102 | ; mov [ps2_mouse_scroll], 1 |
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| - | 103 | ; ; it'll send 4-byte packets instead of 3-byte ones |
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| - | 104 | ; ; the last byte of a packet represents z-axis movement |
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| 54 | call kb_read ; read status return |
- | |
| 55 | cmp ah,1 |
- | |
| 56 | je @@DataInputError |
- | |
| 57 | cmp AL,0FAh |
105 | ; .no_scroll: |
| 58 | jnz @@DataInputError ;íåò ïîäòâåðæäåíèÿ |
106 | |
| - | 107 | mov [ps2_mouse_detected], 1 |
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| - | 108 | mov bl, 0xAE ; enable keyboard interface |
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| - | 109 | call .kb_cmd_c |
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| - | 110 | ||
| - | 111 | mov esi, boot_setmouse_type |
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| 59 | 112 | call boot_log |
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| - | 113 | ||
| 60 | @@DataInputError: |
114 | jmp .finish |
| - | 115 | ||
| - | 116 | ||
| - | 117 | .DataInputError: |
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| - | 118 | .no_ack: |
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| 61 | cmp [ps2_mouse_detected],0 |
119 | .dead_mouse: |
| 62 | je @f |
- | |
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| - | 120 | .unknown_device: |
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| - | 121 | mov [ps2_mouse_detected],0 |
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