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Move WS2812 driver to template class

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This commit is contained in:
Ben V. Brown
2021-05-04 18:37:09 +10:00
parent 64cb9c1158
commit bdeb8ef38a
3 changed files with 117 additions and 125 deletions
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16
source/Core/BSP/MHP30/BSP.cpp
View File

@@ -12,6 +12,8 @@
#include "history.hpp" #include "history.hpp"
#include "main.hpp" #include "main.hpp"
#include <IRQ.h> #include <IRQ.h>
WS2812<GPIOA_BASE,WS2812_Pin,1> ws2812;
volatile uint16_t PWMSafetyTimer = 0; volatile uint16_t PWMSafetyTimer = 0;
volatile uint8_t pendingPWM = 0; volatile uint8_t pendingPWM = 0;
uint16_t totalPWM = 255; uint16_t totalPWM = 255;
@@ -325,7 +327,7 @@ void unstick_I2C() {
uint8_t getButtonA() { return HAL_GPIO_ReadPin(KEY_A_GPIO_Port, KEY_A_Pin) == GPIO_PIN_RESET ? 1 : 0; } uint8_t getButtonA() { return HAL_GPIO_ReadPin(KEY_A_GPIO_Port, KEY_A_Pin) == GPIO_PIN_RESET ? 1 : 0; }
uint8_t getButtonB() { return HAL_GPIO_ReadPin(KEY_B_GPIO_Port, KEY_B_Pin) == GPIO_PIN_RESET ? 1 : 0; } uint8_t getButtonB() { return HAL_GPIO_ReadPin(KEY_B_GPIO_Port, KEY_B_Pin) == GPIO_PIN_RESET ? 1 : 0; }
void BSPInit(void) { WS2812::init(); } void BSPInit(void) { ws2812.init(); }
void reboot() { NVIC_SystemReset(); } void reboot() { NVIC_SystemReset(); }
@@ -418,23 +420,23 @@ void setStatusLED(const enum StatusLED state) {
default: default:
case LED_UNKNOWN: case LED_UNKNOWN:
case LED_OFF: case LED_OFF:
WS2812::led_set_color(0, 0, 0, 0); ws2812.led_set_color(0, 0, 0, 0);
break; break;
case LED_STANDBY: case LED_STANDBY:
WS2812::led_set_color(0, 0, 0xFF, 0); // green ws2812.led_set_color(0, 0, 0xFF, 0); // green
break; break;
case LED_HEATING: { case LED_HEATING: {
WS2812::led_set_color(0, ((HAL_GetTick() / 10) % 192) + 64, 0, ws2812.led_set_color(0, ((HAL_GetTick() / 10) % 192) + 64, 0,
0); // Red fade 0); // Red fade
} break; } break;
case LED_HOT: case LED_HOT:
WS2812::led_set_color(0, 0xFF, 0, 0); // red ws2812.led_set_color(0, 0xFF, 0, 0); // red
break; break;
case LED_COOLING_STILL_HOT: case LED_COOLING_STILL_HOT:
WS2812::led_set_color(0, 0xFF, 0x8C, 0x00); // Orange ws2812.led_set_color(0, 0xFF, 0x8C, 0x00); // Orange
break; break;
} }
WS2812::led_update(); ws2812.led_update();
lastState = state; lastState = state;
} }
} }

107
source/Core/Drivers/WS2812.cpp
View File

@@ -1,107 +0,0 @@
/*
* WS2812.cpp
*
* Created on: 2 May 2021
* Author: Ralim
*/
#include "Pins.h"
#include <WS2812.h>
#include <string.h>
uint8_t WS2812::leds_colors[WS2812_LED_CHANNEL_COUNT * WS2812_LED_COUNT];
void WS2812::init(void) { memset(leds_colors, 0, sizeof(leds_colors)); }
void WS2812::led_update() {
__disable_irq();
// Bitbang it out as our cpu irq latency is too high
for (unsigned int i = 0; i < sizeof(leds_colors); i++) {
// Shove out MSB first
for (int x = 0; x < 8; x++) {
WS2812_GPIO_Port->BSRR = WS2812_Pin;
if ((leds_colors[i] & (1 << (7 - x))) == (1 << (7 - x))) {
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
} else {
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
}
WS2812_GPIO_Port->BSRR = (uint32_t)WS2812_Pin << 16u;
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
}
}
__enable_irq();
}
void WS2812::led_set_color(size_t index, uint8_t r, uint8_t g, uint8_t b) {
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 0] = g;
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 1] = r;
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 2] = b;
}
void WS2812::led_set_color_all(uint8_t r, uint8_t g, uint8_t b) {
for (int index = 0; index < WS2812_LED_COUNT; index++) {
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 0] = g;
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 1] = r;
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 2] = b;
}
}

119
source/Core/Drivers/WS2812.h
View File

@@ -6,26 +6,123 @@
*/ */
#include "Setup.h" #include "Setup.h"
#include <stddef.h> #include <stddef.h>
#include <string.h>
#include <stdint.h> #include <stdint.h>
#include "Pins.h"
#ifndef CORE_DRIVERS_WS2812_H_ #ifndef CORE_DRIVERS_WS2812_H_
#define CORE_DRIVERS_WS2812_H_ #define CORE_DRIVERS_WS2812_H_
#ifndef WS2812_LED_COUNT
#define WS2812_LED_COUNT 2
#endif
#ifndef WS2812_LED_CHANNEL_COUNT #ifndef WS2812_LED_CHANNEL_COUNT
#define WS2812_LED_CHANNEL_COUNT 3 #define WS2812_LED_CHANNEL_COUNT 3
#endif #endif
#define WS2812_RAW_BYTES_PER_LED (WS2812_LED_CHANNEL_COUNT * 8)
class WS2812 {
public:
static void init(void);
static void led_update();
static void led_set_color(size_t index, uint8_t r, uint8_t g, uint8_t b);
static void led_set_color_all(uint8_t r, uint8_t g, uint8_t b);
#define WS2812_RAW_BYTES_PER_LED (WS2812_LED_CHANNEL_COUNT * 8)
template<uint32_t LED_GPIO, uint16_t LED_PIN, int LED_COUNT> class WS2812 {
private: private:
static uint8_t leds_colors[WS2812_LED_CHANNEL_COUNT * WS2812_LED_COUNT]; uint8_t leds_colors[WS2812_LED_CHANNEL_COUNT * LED_COUNT];
public:
void led_update() {
__disable_irq();
// Bitbang it out as our cpu irq latency is too high
for (unsigned int i = 0; i < sizeof(leds_colors); i++) {
// Shove out MSB first
for (int x = 0; x < 8; x++) {
((GPIO_TypeDef*) WS2812_GPIO_Port)->BSRR = WS2812_Pin;
if ((leds_colors[i] & (1 << (7 - x))) == (1 << (7 - x))) {
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
} else {
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
}
((GPIO_TypeDef*) WS2812_GPIO_Port)->BSRR = (uint32_t) WS2812_Pin
<< 16u;
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
__asm__ __volatile__("nop");
}
}
__enable_irq();
}
void init(void) {
memset(leds_colors, 0, sizeof(leds_colors));
}
void led_set_color(size_t index, uint8_t r, uint8_t g, uint8_t b) {
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 0] = g;
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 1] = r;
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 2] = b;
}
void led_set_color_all(uint8_t r, uint8_t g, uint8_t b) {
for (int index = 0; index < LED_COUNT; index++) {
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 0] = g;
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 1] = r;
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 2] = b;
}
}
}; };
#endif /* CORE_DRIVERS_WS2812_H_ */ #endif /* CORE_DRIVERS_WS2812_H_ */