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implemented worker thread for glcd

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Tectu 2012-07-16 03:05:12 +02:00
parent 7639f58f61
commit e3a1ba08ab
3 changed files with 94 additions and 3 deletions
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57
glcd.c
View file

@ -1,11 +1,49 @@
#include "glcd.h"
#include "fonts.h"
#include <stdlib.h>
#include <math.h>
uint16_t lcd_width, lcd_height;
static Thread *workerThread = NULL;
static WORKING_AREA(waGLCDWorkerThread, GLCD_WORKER_SIZE);
static msg_t ThreadGLCDWorker(void *arg) {
(void)arg;
Thread *p;
chRegSetThreadName("GLCDWorker");
while(TRUE) {
/* Wait for msg with work to do. */
p = chMsgWait();
struct glcd_msg_base *msg = (struct glcd_msg_base*)chMsgGet(p);
msg->result = GLCD_PROGRESS;
/* do work here */
switch(msg->action) {
case GLCD_SET_CURSOR: {
const struct glcd_msg_set_cursor *emsg = (const struct glcd_msg_set_cursor*)msg;
lld_lcdSetCursor(emsg->x, emsg->y);
msg->result = GLCD_DONE;
break;
}
case GLCD_DRAW_PIXEL: {
const struct glcd_msg_draw_pixel *emsg = (const struct glcd_msg_draw_pixel*)msg;
lld_lcdDrawPixel(emsg->x, emsg->y, emsg->color);
msg->result = GLCD_DONE;
break;
}
}
/* Done, release msg again. */
chMsgRelease(p, 0);
}
return 0;
}
void lcdInit(GLCDDriver *glcdp) {
workerThread = chThdCreateStatic(waGLCDWorkerThread, sizeof(waGLCDWorkerThread), NORMALPRIO, ThreadGLCDWorker, NULL);
lld_lcdInit();
lcd_width = lcdGetWidth();
@ -28,7 +66,13 @@ uint16_t lcdGetOrientation(void) {
}
static void lcdSetCursor(uint16_t x, uint16_t y) {
lld_lcdSetCursor(x, y);
struct glcd_msg_set_cursor msg;
msg.action = GLCD_SET_CURSOR;
msg.x = x;
msg.y = y;
chMsgSend(workerThread, (msg_t)&msg);
}
void lcdSetPowerMode(uint8_t powerMode) {
@ -64,7 +108,14 @@ uint16_t lcdGetPixelColor(uint16_t x, uint16_t y) {
}
void lcdDrawPixel(uint16_t x, uint16_t y, uint16_t color) {
lld_lcdDrawPixel(x, y, color);
struct glcd_msg_draw_pixel msg;
msg.action = GLCD_DRAW_PIXEL;
msg.x = x;
msg.y = y;
msg.color = color;
chMsgSend(workerThread, (msg_t)&msg);
}
static void lcdWriteStreamStart(void) {

1
glcd.h
View file

@ -4,6 +4,7 @@
#include "ch.h"
#include "hal.h"
#include "fonts.h"
#include "worker.h"
#if !defined(LCD_USE_FSMC) && !defined(LCD_USE_GPIO) && !defined(LCD_USE_SPI)
#include "glcdconf.h"

39
worker.h Normal file
View file

@ -0,0 +1,39 @@
#ifndef WORKER_H
#define WORKER_H
#define GLCD_WORKER_SIZE 2048
enum glcd_action { GLCD_SET_CURSOR,
GLCD_DRAW_PIXEL,
};
enum glcd_result { GLCD_DONE,
GLCD_FAILED,
GLCD_PROGRESS
};
#define _glcd_msg_base \
enum glcd_action action; \
enum glcd_result result;
struct glcd_msg_base {
_glcd_msg_base
};
struct glcd_msg_set_cursor {
_glcd_msg_base
uint16_t x;
uint16_t y;
};
struct glcd_msg_draw_pixel {
_glcd_msg_base
uint16_t x;
uint16_t y;
uint16_t color;
};
#endif