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#pragma once
#include <mmio/mmio.h>
struct STM32_GPIO_reg_v1_t {
volatile uint32_t CRL;
volatile uint32_t CRH;
volatile uint32_t IDR;
volatile uint32_t ODR;
volatile uint32_t BSRR;
volatile uint32_t BRR;
volatile uint32_t LCKR;
};
struct STM32_GPIO_reg_v2_t {
volatile uint32_t MODER;
volatile uint32_t OTYPER;
volatile uint32_t OSPEEDR;
volatile uint32_t PUPDR;
volatile uint32_t IDR;
volatile uint32_t ODR;
volatile uint32_t BSRR;
volatile uint32_t LCKR;
volatile uint32_t AFRL;
volatile uint32_t AFRH;
};
class STM32_GPIO_v1_t : public mmio_ptr<STM32_GPIO_reg_v1_t> {
public:
using mmio_ptr<STM32_GPIO_reg_v1_t>::ptr;
class Pin {
private:
const STM32_GPIO_v1_t& g;
public:
const int n;
constexpr Pin(const STM32_GPIO_v1_t& gpio, const int pin) : g(gpio), n(pin) {}
enum Mode {
Input = 0x4,
InputPull = 0x8,
Output = 0x3,
AF = 0xb,
Analog = 0x0,
};
void set_mode(Mode m) {
if(n < 8) {
g->CRL = (g->CRL & ~(0xf << (n * 4))) | m << (n * 4);
} else {
g->CRH = (g->CRH & ~(0xf << (n * 4 - 32))) | m << (n * 4 - 32);
}
}
void on() {
g->BSRR = 1 << n;
}
void off() {
g->BSRR = 1 << 16 << n;
}
void set(bool value) {
if(value) {
on();
} else {
off();
}
}
bool get() {
return g->IDR & (1 << n);
}
void toggle() {
set(!(g->ODR & (1 << n)));
}
unsigned get_portnum() {
return (((*(uint32_t*)&g) >>10) & 0xf) - 2;
}
};
class PinArray {
private:
const STM32_GPIO_v1_t& g;
int f;
int l;
constexpr uint32_t mask1() {
return ((2 << l) - 1) ^ ((1 << f) - 1);
}
constexpr uint32_t mask2() {
return ((4 << (l * 2)) - 1) ^ ((1 << (f * 2)) - 1);
}
public:
constexpr PinArray(const STM32_GPIO_v1_t& gpio, int first, int last) : g(gpio), f(first), l(last) {}
void set(uint16_t value) {
value <<= f;
g->BSRR = ((~value & mask1()) << 16) | (value & mask1());
}
uint16_t get() {
return (g->IDR & mask1()) >> f;
}
};
constexpr Pin operator[](int pin) const {
return Pin(*this, pin);
}
constexpr PinArray array(int first, int last) const {
return PinArray(*this, first, last);
}
};
class STM32_GPIO_v2_t : public mmio_ptr<STM32_GPIO_reg_v2_t> {
public:
using mmio_ptr<STM32_GPIO_reg_v2_t>::ptr;
class Pin {
private:
const STM32_GPIO_v2_t& g;
public:
const int n;
constexpr Pin(const STM32_GPIO_v2_t& gpio, const int pin) : g(gpio), n(pin) {}
enum Mode {
Input,
Output,
AF,
Analog,
};
enum Type {
PushPull,
OpenDrain,
};
enum Pull {
PullNone,
PullUp,
PullDown,
};
enum Speed {
Low,
Medium,
Fast,
High,
};
void set_mode(Mode m) {
g->MODER = (g->MODER & ~(3 << (n * 2))) | m << (n * 2);
}
void set_type(Type t) {
if(t) {
g->OTYPER |= 1 << n;
} else {
g->OTYPER &= ~(1 << n);
}
}
void set_pull(Pull p) {
g->PUPDR = (g->PUPDR & ~(3 << (n * 2))) | p << (n * 2);
}
void set_af(int af) {
if(n < 8) {
g->AFRL = (g->AFRL & ~(0xf << (n * 4))) | af << (n * 4);
} else {
g->AFRH = (g->AFRH & ~(0xf << (n * 4 - 32))) | af << (n * 4 - 32);
}
}
void set_speed(Speed s) {
g->OSPEEDR = (g->OSPEEDR & ~(3 << (n * 2))) | s << (n * 2);
}
void on() {
g->BSRR = 1 << n;
}
void off() {
g->BSRR = 1 << 16 << n;
}
void set(bool value) {
if(value) {
on();
} else {
off();
}
}
bool get() {
return g->IDR & (1 << n);
}
void toggle() {
set(!(g->ODR & (1 << n)));
}
unsigned get_portnum() {
return (((*(uint32_t*)&g) >>10) & 0xf);
}
};
class PinArray {
private:
const STM32_GPIO_v2_t& g;
int f;
int l;
constexpr uint32_t mask1() {
return ((2 << l) - 1) ^ ((1 << f) - 1);
}
constexpr uint32_t mask2() {
return ((4 << (l * 2)) - 1) ^ ((1 << (f * 2)) - 1);
}
public:
constexpr PinArray(const STM32_GPIO_v2_t& gpio, int first, int last) : g(gpio), f(first), l(last) {}
void set_mode(Pin::Mode m) {
g->MODER = (g->MODER & ~mask2()) | ((0x55555555 * m) & mask2());
}
void set_type(Pin::Type t) {
g->OTYPER = (g->OTYPER & ~mask2()) | ((0x55555555 * t) & mask2());
}
void set_pull(Pin::Pull p) {
g->PUPDR = (g->PUPDR & ~mask2()) | ((0x55555555 * p) & mask2());
}
void set(uint16_t value) {
value <<= f;
g->BSRR = ((~value & mask1()) << 16) | (value & mask1());
}
uint16_t get() {
return (g->IDR & mask1()) >> f;
}
};
constexpr Pin operator[](int pin) const {
return Pin(*this, pin);
}
constexpr PinArray array(int first, int last) const {
return PinArray(*this, first, last);
}
};
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