Revision 81
added documentation
| lab4/mouse.c | ||
|---|---|---|
| 138 | 138 |
uint8_t stat; |
| 139 | 139 |
while(true){
|
| 140 | 140 |
if((ret = util_sys_inb(STATUS_REG, &stat))) return ret; |
| 141 |
//printf("%x\n",stat);
|
|
| 141 | 142 |
if((stat&OUT_BUF_FUL) && (stat&AUX_MOUSE)) {
|
| 142 | 143 |
if(stat & (PARITY_ERROR | TIME_OUT_REC)) return OTHER_ERROR; |
| 143 | 144 |
if((ret = util_sys_inb(OUTPUT_BUF, byte))) return ret; |
| lab4/mouse.h | ||
|---|---|---|
| 12 | 12 |
*/ |
| 13 | 13 |
int (subscribe_mouse_interrupt)(uint8_t interrupt_bit, int *interrupt_id); |
| 14 | 14 |
|
| 15 |
//These have to do with mouse_ih |
|
| 15 | 16 |
int got_error_mouse_ih; |
| 16 | 17 |
uint8_t packet_mouse_ih[3]; |
| 17 | 18 |
int counter_mouse_ih; |
| 18 | 19 |
|
| 20 |
/** |
|
| 21 |
* @brief Parse 3 bytes and returns it as a parsed, struct packet. |
|
| 22 |
* @param packet_bytes array of bytes to parse |
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* @return parsed struct packet |
|
| 24 |
*/ |
|
| 19 | 25 |
struct packet (mouse_parse_packet)(const uint8_t *packet_bytes); |
| 20 | 26 |
|
| 27 |
/** |
|
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* @brief Polls mouse for data. Blocks execution until a valid mouse packet is obtained. |
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* @param pp pointer to packet struct in which the result will be stored |
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* @param period time (in milliseconds) the poller should wait between pollings of bytes |
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* @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK |
|
| 32 |
*/ |
|
| 21 | 33 |
int mouse_poll(struct packet *pp, uint16_t period); |
| 22 | 34 |
|
| 23 | 35 |
/** |
| 24 |
* |
|
| 36 |
* @brief Sets data report mode for mouse |
|
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* @param on zero to disable data report, any other value to enable data report |
|
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* @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK |
|
| 25 | 39 |
*/ |
| 26 | 40 |
int (mouse_set_data_report)(int on); |
| 27 | 41 |
|
| ... | ... | |
| 58 | 72 |
*/ |
| 59 | 73 |
int (mouse_read_byte)(uint8_t *byte); |
| 60 | 74 |
|
| 75 |
/** |
|
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* @brief Same as @ref mouse_read_byte, except it does not wait for output buffer |
|
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* to be full, since ACK is considered to arrive instantaneously somehow. |
|
| 78 |
* @param byte pointer to byte where ACK will be stored |
|
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* @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK |
|
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*/ |
|
| 61 | 81 |
int (mouse_read_ack)(uint8_t *byte); |
| 62 | 82 |
|
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/** |
|
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* @brief Polls OUT_BUF for byte coming from mouse. |
|
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* @param byte pointer to byte read from OUT_BUF |
|
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* @param period time (in milliseconds) the poller should wait between pollings of bytes |
|
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* @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK |
|
| 88 |
*/ |
|
| 63 | 89 |
int (mouse_poll_byte)(uint8_t *byte, uint16_t period); |
| 64 | 90 |
|
| 65 | 91 |
/** |
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