root / proj / utils.c @ 167
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#include <lcom/lcf.h> |
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#include "utils.h" |
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#include <stdint.h> |
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#include "errors.h" |
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int(util_get_LSB)(uint16_t val, uint8_t *lsb) {
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if (lsb == NULL) return NULL_PTR; |
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*lsb = val; |
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return SUCCESS;
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} |
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int(util_get_MSB)(uint16_t val, uint8_t *msb) {
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if (msb == NULL) return NULL_PTR; |
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*msb = (val >> 8);
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return SUCCESS;
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} |
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int (util_sys_inb)(int port, uint8_t *value) { |
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if(value == NULL) return NULL_PTR; |
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uint32_t n = 0;
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if(sys_inb(port, &n)) return READ_ERROR; |
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*value = n; |
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return SUCCESS;
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} |
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int (unsubscribe_interrupt)(int *interrupt_id) { |
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if (interrupt_id == NULL) return NULL_PTR; |
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if(sys_irqrmpolicy(interrupt_id)) return UNSBCR_ERROR; |
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return SUCCESS;
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} |
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int32_t min(int32_t a, int32_t b){ return (b < a ? b : a); }
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int32_t max(int32_t a, int32_t b){ return (a < b ? b : a); }
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