diff options
Diffstat (limited to 'include/arch')
| -rw-r--r-- | include/arch/rm46l8lp/driver/gpio.h | 51 |
1 files changed, 40 insertions, 11 deletions
diff --git a/include/arch/rm46l8lp/driver/gpio.h b/include/arch/rm46l8lp/driver/gpio.h index aca160c..384667f 100644 --- a/include/arch/rm46l8lp/driver/gpio.h +++ b/include/arch/rm46l8lp/driver/gpio.h @@ -16,26 +16,30 @@ class GPIO { GPIO () {} enum Pin : unsigned char { - a_0 = 0, a_1, a_2, a_3, a_4, a_5, a_6, a_7, - b_0, b_1, b_2, b_3, b_4, b_5, b_6, b_7, + a0 = 0, a1, a2, a3, a4, a5, a6, a7, + b0, b1, b2, b3, b4, b5, b6, b7, PIN_INVALID }; inline void setup() { + /* + * Default configuration: + * A0 A1 A2 b1 B2 as output, others as input. + */ gioInit(); } inline void led_on(unsigned char id = 0) { if (id == 0) { - gioSetBit(gioPORTB,1, 1); + gioPORTB->DSET = 1U << 1; } else { - gioSetBit(gioPORTB,2, 1); + gioPORTB->DSET = 1U << 2; } } inline void led_off(unsigned char id = 0) { if (id == 0) { - gioSetBit(gioPORTB,1, 0); + gioPORTB->DCLR = 1U << 1; } else { - gioSetBit(gioPORTB,2, 0); + gioPORTB->DCLR = 1U << 2; } } inline void led_toggle(unsigned char id = 0) { @@ -46,23 +50,48 @@ class GPIO { } } inline void input(unsigned char const pin) { - // TODO + if (pin < b0) { + gioPORTA->DIR &= ~(1U << pin); + } else if (pin < PIN_INVALID) { + gioPORTB->DIR &= ~(1U << (pin - b0)); + } } inline void input(unsigned char const pin, unsigned char const pull) { // TODO } inline void output(unsigned char const pin) { - // TODO + if (pin < b0) { + gioPORTA->DIR |= 1U << pin; + } else if (pin < PIN_INVALID) { + gioPORTB->DIR |= 1U << (pin - b0); + } } inline void output(unsigned char const pin, unsigned char const value) { - // TODO + write(pin, value); + output(pin); } inline unsigned char read(unsigned char const pin) { - // TODO + if (pin < b0) { + return gioPORTA->DIN & (1U << pin); + } else if (pin < PIN_INVALID) { + return gioPORTB->DIN & (1U << (pin - b0)); + } return 0; } inline void write(unsigned char const pin, unsigned char value) { - // TODO + if (pin < b0) { + if (value) { + gioPORTA->DSET = 1U << pin; + } else { + gioPORTA->DCLR = 1U << pin; + } + } else if (pin < PIN_INVALID) { + if (value) { + gioPORTB->DSET = 1U << (pin - b0); + } else { + gioPORTB->DCLR = 1U << (pin - b0); + } + } } inline void write_mask(unsigned char const pin_base, unsigned char set_mask, unsigned char clear_mask) { // TODO |