root / proj / libs / utils / include / utils.h @ 321
History | View | Annotate | Download (2.34 KB)
| 1 | 144 | up20180655 | #ifndef UTILS_H_INCLUDED
|
|---|---|---|---|
| 2 | #define UTILS_H_INCLUDED
|
||
| 3 | |||
| 4 | 234 | up20180655 | #define BCD_FIRST(n) (n >> 4) /** @brief Get first digit (leftmost digit) of 8-bit BCD */ |
| 5 | #define BCD_SECOND(n) (n & 0x0F) /** @brief Get second digit (rightmost digit) of 8-bit BCD */ |
||
| 6 | |||
| 7 | 144 | up20180655 | /**
|
| 8 | * @brief Gets the least significant byte of a 16-bit variable
|
||
| 9 | * @param val 16-bit variable
|
||
| 10 | * @param lsb Pointer to a 8-bit variable to store the value of the LSB
|
||
| 11 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
|
||
| 12 | */
|
||
| 13 | int(util_get_LSB)(uint16_t val, uint8_t *lsb);
|
||
| 14 | |||
| 15 | /**
|
||
| 16 | * @brief Gets the most significant byte of a 16-bit variable
|
||
| 17 | * @param val 16-bit variable
|
||
| 18 | * @param lsb Pointer to a 8-bit variable to store the value of the MSB
|
||
| 19 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
|
||
| 20 | */
|
||
| 21 | int(util_get_MSB)(uint16_t val, uint8_t *msb);
|
||
| 22 | |||
| 23 | /**
|
||
| 24 | * @brief sys_inb wrapper
|
||
| 25 | * @param port Port to read from
|
||
| 26 | * @param value Pointer to byte to store value read
|
||
| 27 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
|
||
| 28 | */
|
||
| 29 | int (util_sys_inb)(int port, uint8_t *value); |
||
| 30 | |||
| 31 | /**
|
||
| 32 | 145 | up20180655 | * @brief Unsubcribes Interrupts
|
| 33 | * @param interrupt_id Interrupt ID, value via arguments on subscription of the interrupt_id
|
||
| 34 | * @see subscribe_kbc_interrupt, subscribe_timer_interrupt
|
||
| 35 | * @return ERROR_CODE code representing the result of the operation, SUCCESS code is returned if everything is OK
|
||
| 36 | */
|
||
| 37 | int (unsubscribe_interrupt)(int *interrupt_id); |
||
| 38 | |||
| 39 | /**
|
||
| 40 | 144 | up20180655 | * @brief Gets the minimum value out of two values.
|
| 41 | * @param a First value
|
||
| 42 | * @param b Second value
|
||
| 43 | * @return The minimum of the two values
|
||
| 44 | */
|
||
| 45 | 167 | up20180655 | int32_t min(int32_t a, int32_t b); |
| 46 | 144 | up20180655 | |
| 47 | /**
|
||
| 48 | * @brief Gets the maximum value out of two values.
|
||
| 49 | * @param a First value
|
||
| 50 | * @param b Second value
|
||
| 51 | * @return The maximum of the two values
|
||
| 52 | */
|
||
| 53 | 167 | up20180655 | int32_t max(int32_t a, int32_t b); |
| 54 | 144 | up20180655 | |
| 55 | 200 | up20180655 | /**
|
| 56 | * @brief Gets the minimum value out of two doubles.
|
||
| 57 | * @param a First value
|
||
| 58 | * @param b Second value
|
||
| 59 | * @return The minimum of the two values
|
||
| 60 | */
|
||
| 61 | double min_d(double a, double b); |
||
| 62 | 144 | up20180655 | |
| 63 | 200 | up20180655 | /**
|
| 64 | * @brief Gets the maximum value out of two doubles.
|
||
| 65 | * @param a First value
|
||
| 66 | * @param b Second value
|
||
| 67 | * @return The maximum of the two values
|
||
| 68 | */
|
||
| 69 | double max_d(double a, double b); |
||
| 70 | |||
| 71 | |||
| 72 | 250 | up20180655 | double abs_d(double a); |
| 73 | |||
| 74 | |||
| 75 | 144 | up20180655 | #endif //UTILS_H_INCLUDED |