root / lab4 / mouse_func.c @ 56
History | View | Annotate | Download (1.46 KB)
1 | 52 | up20180655 | #include "mouse_func.h" |
---|---|---|---|
2 | #include "errors.h" |
||
3 | #include "kbc.h" |
||
4 | #include "mouse.h" |
||
5 | |||
6 | #include <lcom/lcf.h> |
||
7 | |||
8 | int (subscribe_mouse_interrupt)(uint8_t interrupt_bit, int *interrupt_id) { |
||
9 | if (interrupt_id == NULL) return NULL_PTR; |
||
10 | *interrupt_id = interrupt_bit; |
||
11 | if (sys_irqsetpolicy(MOUSE_IRQ, IRQ_REENABLE | IRQ_EXCLUSIVE, interrupt_id)) return SBCR_ERROR; |
||
12 | return SUCCESS;
|
||
13 | } |
||
14 | |||
15 | int (unsubscribe_interrupt)(int *interrupt_id) { |
||
16 | if (interrupt_id == NULL) return NULL_PTR; |
||
17 | if (sys_irqrmpolicy(interrupt_id)) return UNSBCR_ERROR; |
||
18 | return SUCCESS;
|
||
19 | } |
||
20 | 56 | up20180642 | |
21 | int got_error = 0; |
||
22 | uint8_t packet[3];
|
||
23 | int counter = 0; |
||
24 | |||
25 | void (mouse_ih)(void) { |
||
26 | uint8_t status = 0;
|
||
27 | got_error = 0;
|
||
28 | |||
29 | if (util_sys_inb(STATUS_REG, &status)) {
|
||
30 | got_error = 1;
|
||
31 | return;
|
||
32 | } |
||
33 | |||
34 | if (status & (TIME_OUT_REC | PARITY_ERROR)) {
|
||
35 | got_error = 1;
|
||
36 | return;
|
||
37 | } |
||
38 | |||
39 | uint8_t byte = 0;
|
||
40 | |||
41 | if (util_sys_inb(OUTPUT_BUF, &byte)) {
|
||
42 | got_error = 1;
|
||
43 | return;
|
||
44 | } |
||
45 | |||
46 | if(counter >= 3) counter = 0; |
||
47 | packet[counter] = byte; |
||
48 | counter++; |
||
49 | |||
50 | } |
||
51 | |||
52 | struct packet (mouse_parse_packet)(const uint8_t *packet_bytes){ |
||
53 | struct packet pp;
|
||
54 | pp.bytes[0] = packet_bytes[0]; |
||
55 | pp.bytes[1] = packet_bytes[1]; |
||
56 | pp.bytes[2] = packet_bytes[2]; |
||
57 | pp.rb = pp.bytes[0] & RIGHT_BUTTON;
|
||
58 | pp.mb = pp.bytes[0] & MIDDLE_BUTTON;
|
||
59 | pp.lb = pp.bytes[0] & LEFT_BUTTON;
|
||
60 | //pp.delta_x =
|
||
61 | return pp;
|
||
62 | } |