diff options
Diffstat (limited to 'src/wiring/wiring_digital.c')
| -rw-r--r-- | src/wiring/wiring_digital.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/wiring/wiring_digital.c b/src/wiring/wiring_digital.c new file mode 100644 index 0000000..1ece41a --- /dev/null +++ b/src/wiring/wiring_digital.c @@ -0,0 +1,55 @@ +#include "gpio.h" +#include "wiring.h" +#include "util.h" + +typedef struct PinGPIOMapping { + GPIO_Port *port; + uint32_t pin; +} PinGPIOMapping; + +static const PinGPIOMapping PIN_TO_GPIO[NR_MAPLE_PINS] = { + {_GPIOA_BASE, 3}, // D0/PA3 + {_GPIOA_BASE, 2}, // D1/PA2 + {_GPIOA_BASE, 0}, // D2/PA0 + {_GPIOA_BASE, 1}, // D3/PA1 + {_GPIOB_BASE, 5}, // D4/PB5 + {_GPIOB_BASE, 6}, // D5/PB6 + {_GPIOA_BASE, 8}, // D6/PA8 + {_GPIOA_BASE, 9}, // D7/PA9 + {_GPIOA_BASE, 10}, // D8/PA10 + {_GPIOB_BASE, 7}, // D9/PB7 + {_GPIOA_BASE, 4}, // D10/PA4 + {_GPIOA_BASE, 7}, // D11/PA7 + {_GPIOA_BASE, 6}, // D12/PA6 + {_GPIOA_BASE, 5}, // D13/PA5 +#if 0 + {_GPIOC_BASE, 0}, // D14/A0/PC0 + {_GPIOC_BASE, 1}, // D15/A1/PC1 + {_GPIOC_BASE, 2}, // D16/A2/PC2 + {_GPIOC_BASE, 3}, // D17/A3/PC3 + {_GPIOC_BASE, 4}, // D18/A4/PC4 + {_GPIOC_BASE, 5}, // D19/A5/PC5 +#endif +}; + +void pinMode(uint8_t pin, uint8_t mode) { + if (pin >= NR_MAPLE_PINS) + return; + + gpio_set_mode(PIN_TO_GPIO[pin].port, PIN_TO_GPIO[pin].pin, mode); +} + + +uint32_t digitalRead(uint8_t pin) { + if (pin >= NR_MAPLE_PINS) + return 0; + + return (PIN_TO_GPIO[pin].port->IDR & BIT(PIN_TO_GPIO[pin].pin)) ? 1 : 0; +} + +void digitalWrite(uint8_t pin, uint8_t val) { + if (pin >= NR_MAPLE_PINS) + return; + + gpio_write_bit(PIN_TO_GPIO[pin].port, PIN_TO_GPIO[pin].pin, val); +} |