diff options
Diffstat (limited to 'src/ioport.c')
| -rw-r--r-- | src/ioport.c | 105 |
1 files changed, 53 insertions, 52 deletions
diff --git a/src/ioport.c b/src/ioport.c index a77e564..3cc9406 100644 --- a/src/ioport.c +++ b/src/ioport.c @@ -3,9 +3,9 @@ #ifdef CONFIG_PCINT struct PCIW { - uint8_t flags; - uint8_t mask; - void (*change) (uint8_t group, uint8_t mask); + uint8_t flags; + uint8_t mask; + void (*change) (uint8_t group, uint8_t mask); }; // Exploiting implementation of libc malloc @@ -14,8 +14,8 @@ struct PCIW { #if (defined MCUSUPPORT_PCINT0 && defined MCUSUPPORT_PCINT1 && defined MCUSUPPORT_PCINT2) #define PCI_COUNT 3 #elif (defined MCUSUPPORT_PCINT0 && defined MCUSUPPORT_PCINT1 || \ - defined MCUSUPPORT_PCINT1 && defined MCUSUPPORT_PCINT2 || \ - defined MCUSUPPORT_PCINT2 && defined MCUSUPPORT_PCINT0) + defined MCUSUPPORT_PCINT1 && defined MCUSUPPORT_PCINT2 || \ + defined MCUSUPPORT_PCINT2 && defined MCUSUPPORT_PCINT0) #define PCI_COUNT 2 #elif (defined MCUSUPPORT_PCINT0 || defined MCUSUPPORT_PCINT1 || defined MCUSUPPORT_PCINT2) #define PCI_COUNT 1 @@ -28,84 +28,85 @@ struct PCIW { static struct PCIW *pciw[PCI_COUNT]; static uint8_t pci_state[PCI_COUNT]; static void pci(int8_t group, int8_t pinmax) { - int8_t i, y; - int8_t index = GROUP2INDEX(group); - int8_t len = (int8_t) PCIW_LEN(pciw[index]); - // WARN Is possible that PCINT0 is not corresponding with B group and so on? - uint8_t state = IOE_IO_PIN(group); - for (i = len; i >= 0; i--) { - uint8_t stA = state & pciw[index][i].mask; - uint8_t stB = pci_state[index] & pciw[index][i].mask; - if (((~stA & stB) && pciw[index][i].flags & IOE_IO_RISING) || - ((stA & ~stB) && pciw[index][i].flags & IOE_IO_FALLING)) { - pciw[index][i].change(IOE_IO_B, mask); - } - } - pci_state[index] = state; + int8_t i, y; + int8_t index = GROUP2INDEX(group); + int8_t len = (int8_t) PCIW_LEN(pciw[index]); + // WARN Is possible that PCINT0 is not corresponding with B group and so on? + uint8_t state = IOE_IO_PIN(group); + for (i = len; i >= 0; i--) { + uint8_t stA = state & pciw[index][i].mask; + uint8_t stB = pci_state[index] & pciw[index][i].mask; + if (((~stA & stB) && pciw[index][i].flags & IOE_IO_RISING) || + ((stA & ~stB) && pciw[index][i].flags & IOE_IO_FALLING)) { + pciw[index][i].change(IOE_IO_B, mask); + } + } + pci_state[index] = state; } void io_change_sethook(uint8_t group, uint8_t mask, uint8_t edge, - void (*change) (uint8_t group, uint8_t mask)) { - int8_t index = (int8_t) GROUP2INDEX(group); - int8_t len = (int8_t) PCIW_LEN(pciw[index]); - pciw[index] = realloc(pciw[index], len + 1); - pciw[index][len].flags = edge; - pciw[index][len].mask = mask; - pciw[index][len].change = change; - switch (group) { + void (*change) (uint8_t group, uint8_t mask)) { + int8_t index = (int8_t) GROUP2INDEX(group); + int8_t len = (int8_t) PCIW_LEN(pciw[index]); + pciw[index] = realloc(pciw[index], len + 1); + pciw[index][len].flags = edge; + pciw[index][len].mask = mask; + pciw[index][len].change = change; + switch (group) { #ifdef MCUSUPPORT_PCINT0 // TODO this wont work with attiny4313 and meaby others - case IO_B: - PCICR |= (1<<0); - PCMSK0 |= mask; - break; + case IO_B: + PCICR |= (1<<0); + PCMSK0 |= mask; + break; #endif #ifdef MCUSUPPORT_PCINT1 - case IO_C: - PCICR |= (1<<1); - PCMSK1 |= mask; - break; + case IO_C: + PCICR |= (1<<1); + PCMSK1 |= mask; + break; #endif #ifdef MCUSUPPORT_PCINT2 - case IO_D: - PCICR |= (1<<2); - PCMSK2 |= mask; - break + case IO_D: + PCICR |= (1<<2); + PCMSK2 |= mask; + break #endif - } + } } void io_change_remhook(void (*change) (uint8_t group, uint8_t mask)) { - int8_t i, y; - int8_t len; - for (i = PCI_COUNT - 1; i >= 0; i--) { - len = (int8_t)PCIW_LEN(pciw[index]); - for (y = len - 1; y >= 0; y--) { - if (pciw[i][y].change == change) { + int8_t i, y; + int8_t len; + for (i = PCI_COUNT - 1; i >= 0; i--) { + len = (int8_t)PCIW_LEN(pciw[index]); + for (y = len - 1; y >= 0; y--) { + if (pciw[i][y].change == change) { - } - } - } + } + } + } } void io_change_clearhooks(void) { + // TODO } // WARN This will work only if C is only defined on MCU with also B defined. #ifdef MCUSUPPORT_PCINT0 ISR(PCINT0_vect, ISR_BLOCK) { - pci(IO_B, MCUSUPPORT_PCINT0); + pci(IO_B, MCUSUPPORT_PCINT0); } #endif /* MCUSUPPORT_PCINT0 */ #ifdef MCUSUPPORT_PCINT1 ISR(PCINT1_vect, ISR_BLOCK) { - pci(IO_C, MCUSUPPORT_PCINT1); + pci(IO_C, MCUSUPPORT_PCINT1); } #endif /* MCUSUPPORT_PCINT1 */ #ifdef MCUSUPPORT_PCINT2 ISR(PCINT2_vect, ISR_BLOCK) { - pci(IO_D, MCUSUPPORT_PCINT2); + pci(IO_D, MCUSUPPORT_PCINT2); } #endif /* MCUSUPPORT_PCINT2 */ |