diff options
Diffstat (limited to 'include/arch/msp430fr5994lp/driver/gpio.h')
-rw-r--r-- | include/arch/msp430fr5994lp/driver/gpio.h | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/include/arch/msp430fr5994lp/driver/gpio.h b/include/arch/msp430fr5994lp/driver/gpio.h new file mode 100644 index 0000000..ef681db --- /dev/null +++ b/include/arch/msp430fr5994lp/driver/gpio.h @@ -0,0 +1,202 @@ +#ifndef GPIO_H +#define GPIO_H + +#include <msp430.h> + +class GPIO { + private: + GPIO(const GPIO ©); + + public: + GPIO () {} + + enum Pin : unsigned char { + p1_0 = 0, p1_1, p1_2, p1_3, p1_4, p1_5, p1_6, p1_7, + p2_0, p2_1, p2_2, p2_3, p2_4, p2_5, p2_6, p2_7, + p3_0, p3_1, p3_2, p3_3, p3_4, p3_5, p3_6, p3_7, + p4_0, p4_1, p4_2, p4_3, p4_4, p4_5, p4_6, p4_7, + p5_0, p5_1, p5_2, p5_3, p5_4, p5_5, p5_6, p5_7, + p6_0, p6_1, p6_2, p6_3, p6_4, p6_5, p6_6, p6_7, + p7_0, p7_1, p7_2, p7_3, p7_4, p7_5, p7_6, p7_7, + p8_0, p8_1, p8_2, p8_3, p8_4, p8_5, p8_6, p8_7, + pj_0, pj_1, pj_2, pj_3, pj_4, pj_5, pj_6, pj_7, + PIN_INVALID + }; + + inline void setup() { + P1OUT = 0; + P2OUT = 0; + P3OUT = 0; + P4OUT = 0; + P5OUT = 0; + P6OUT = 0; + P7OUT = 0; + P8OUT = 0; + PJOUT = 0; + P1DIR = BIT0 | BIT1 | 0xff; // red LED, green LED + P2DIR = 0xff ^ (BIT0 | BIT1); // UART + P3DIR = 0xff; + P4DIR = 0xff; + P5DIR = 0xff; + P6DIR = 0xff; + P7DIR = 0xff; + P8DIR = 0x0f; + PJDIR = BIT6 | BIT7; // HFXT (not populated) + } + inline void led_on(unsigned char id) { + if (id == 0) { + P1OUT |= BIT0; + } else { + P1OUT |= BIT1; + } + } + inline void led_off(unsigned char id) { + if (id == 0) { + P1OUT &= ~BIT0; + } else { + P1OUT &= ~BIT1; + } + } + inline void led_toggle(unsigned char id) { + if (id == 0) { + P1OUT ^= BIT0; + } else { + P1OUT ^= BIT1; + } + } + inline void input(unsigned char const pin) { + if (pin < p2_0) { + P1DIR &= ~(1 << pin); + } else if (pin < p3_0) { + P2DIR &= ~(1 << (pin - p2_0)); + } else if (pin < p4_0) { + P3DIR &= ~(1 << (pin - p3_0)); + } else if (pin < pj_0) { + P4DIR &= ~(1 << (pin - p4_0)); + } else if (pin < PIN_INVALID) { + PJDIR &= ~(1 << (pin - pj_0)); + } + } + inline void input(unsigned char const pin, unsigned char const pull) { + if (pin < p2_0) { + P1DIR &= ~(1 << pin); + P1OUT = pull ? (P1OUT | (1 << pin)) : (P1OUT & ~(1 << pin)); + P1REN |= (1 << pin); + } else if (pin < p3_0) { + P2DIR &= ~(1 << (pin - p2_0)); + P2OUT = pull ? (P2OUT | (1 << (pin - p2_0))) : (P2OUT & ~(1 << (pin - p2_0))); + P2REN |= (1 << (pin - p2_0)); + } else if (pin < p4_0) { + P3DIR &= ~(1 << (pin - p3_0)); + P3OUT = pull ? (P3OUT | (1 << (pin - p3_0))) : (P3OUT & ~(1 << (pin - p3_0))); + P3REN |= (1 << (pin - p3_0)); + } else if (pin < pj_0) { + P4DIR &= ~(1 << (pin - p4_0)); + P4OUT = pull ? (P4OUT | (1 << (pin - p4_0))) : (P4OUT & ~(1 << (pin - p4_0))); + P4REN |= (1 << (pin - p4_0)); + } else if (pin < PIN_INVALID) { + PJDIR &= ~(1 << (pin - pj_0)); + PJOUT = pull ? (PJOUT | (1 << (pin - pj_0))) : (PJOUT & ~(1 << (pin - pj_0))); + PJREN |= (1 << (pin - pj_0)); + } + } + inline void output(unsigned char const pin) { + if (pin < p2_0) { + P1DIR |= (1 << pin); + } else if (pin < p3_0) { + P2DIR |= (1 << (pin - p2_0)); + } else if (pin < p4_0) { + P3DIR |= (1 << (pin - p3_0)); + } else if (pin < pj_0) { + P4DIR |= (1 << (pin - p4_0)); + } else if (pin < PIN_INVALID) { + PJDIR |= (1 << (pin - pj_0)); + } + } + inline void output(unsigned char const pin, unsigned char const value) { + if (pin < p2_0) { + P1OUT = value ? (P1OUT | (1 << pin)) : (P1OUT & ~(1 << pin)); + P1DIR |= (1 << pin); + } else if (pin < p3_0) { + P2OUT = value ? (P2OUT | (1 << (pin - p2_0))) : (P2OUT & ~(1 << (pin - p2_0))); + P2DIR |= (1 << (pin - p2_0)); + } else if (pin < p4_0) { + P3OUT = value ? (P3OUT | (1 << (pin - p3_0))) : (P3OUT & ~(1 << (pin - p3_0))); + P3DIR |= (1 << (pin - p3_0)); + } else if (pin < pj_0) { + P4OUT = value ? (P4OUT | (1 << (pin - p4_0))) : (P4OUT & ~(1 << (pin - p4_0))); + P4DIR |= (1 << (pin - p4_0)); + } else if (pin < PIN_INVALID) { + PJOUT = value ? (PJOUT | (1 << (pin - pj_0))) : (PJOUT & ~(1 << (pin - pj_0))); + PJDIR |= (1 << (pin - pj_0)); + } + } + inline unsigned char read(unsigned char const pin) { + if (pin < p2_0) { + return P1IN & (1 << pin); + } else if (pin < p3_0) { + return P2IN & (1 << (pin - p2_0)); + } else if (pin < p4_0) { + return P3IN & (1 << (pin - p3_0)); + } else if (pin < pj_0) { + return P4IN & (1 << (pin - p4_0)); + } else if (pin < PIN_INVALID) { + return PJIN & (1 << (pin - pj_0)); + } + return 0; + } + inline void write(unsigned char const pin, unsigned char value) { + if (pin < p2_0) { + if (value) { + P1OUT |= (1 << pin); + } else { + P1OUT &= ~(1 << pin); + } + } else if (pin < p3_0) { + if (value) { + P2OUT |= (1 << (pin - p2_0)); + } else { + P2OUT &= ~(1 << (pin - p2_0)); + } + } else if (pin < p4_0) { + if (value) { + P3OUT |= (1 << (pin - p3_0)); + } else { + P3OUT &= ~(1 << (pin - p3_0)); + } + } else if (pin < pj_0) { + if (value) { + P4OUT |= (1 << (pin - p4_0)); + } else { + P4OUT &= ~(1 << (pin - p4_0)); + } + } else if (pin < PIN_INVALID) { + if (value) { + PJOUT |= (1 << (pin - pj_0)); + } else { + PJOUT &= ~(1 << (pin - pj_0)); + } + } + } + inline void write_mask(unsigned char const pin_base, unsigned char set_mask, unsigned char clear_mask) { + if (pin_base < p2_0) { + P1OUT = (P1OUT | set_mask) & ~clear_mask; + } + if (pin_base < p3_0) { + P2OUT = (P2OUT | set_mask) & ~clear_mask; + } + if (pin_base < p4_0) { + P3OUT = (P3OUT | set_mask) & ~clear_mask; + } + if (pin_base < pj_0) { + P4OUT = (P4OUT | set_mask) & ~clear_mask; + } + if (pin_base < PIN_INVALID) { + PJOUT = (PJOUT | set_mask) & ~clear_mask; + } + } +}; + +extern GPIO gpio; + +#endif |