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-rw-r--r--include/msp430fr5969lp/driver/gpio.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/include/msp430fr5969lp/driver/gpio.h b/include/msp430fr5969lp/driver/gpio.h
index 7ac3ba3..6f0999c 100644
--- a/include/msp430fr5969lp/driver/gpio.h
+++ b/include/msp430fr5969lp/driver/gpio.h
@@ -9,6 +9,16 @@ class 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,
+ 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;
@@ -40,6 +50,78 @@ class GPIO {
P4OUT ^= BIT6;
}
}
+ 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 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 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));
+ }
+ }
+ 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));
+ }
+ }
+ }
};
extern GPIO gpio;