From 4684f2ad7c934a8ee468eee7b0b27605fc074bb4 Mon Sep 17 00:00:00 2001
From: Birte Kristina Friesel <birte.friesel@uos.de>
Date: Fri, 16 Feb 2024 08:10:45 +0100
Subject: [PATCH] rm46l8lp gpio: implement output, read, write. TODO: input
---
include/arch/rm46l8lp/driver/gpio.h | 51 ++++++++++++++++++++++-------
1 file 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
--
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