* invalidate any other reasons why the executable file might be covered by
* the GNU General Public License.
*
- * Copyright 2007 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
*
* -->
*
- * \version $Id$
+ * \brief LM3S1968 Cortex-M3 testcase
*
- * \author Manuele Fanelli <qwert@develer.com>
- *
- * \brief LM3S168 porting test.
+ * \author Andrea Righi <arighi@develer.com>
+ */
+
+#include <cfg/compiler.h>
+#include <cfg/cfg_gfx.h>
+#include <cpu/irq.h>
+#include <drv/timer.h>
+#include <drv/lcd_lm3s.h>
+#include <io/lm3s.h>
+#include <gfx/gfx.h>
+#include <gfx/font.h>
+#include <gfx/text.h>
+#include <icons/logo.h>
+#include <stdio.h>
+
+#define PROC_STACK_SIZE KERN_MINSTACKSIZE * 2
+
+#if CONFIG_KERN_HEAP
+#define hp_stack NULL
+#define lp_stack NULL
+#else
+static PROC_DEFINE_STACK(hp_stack, PROC_STACK_SIZE);
+static PROC_DEFINE_STACK(lp_stack, PROC_STACK_SIZE);
+#endif
+
+static Process *hp_proc, *lp_proc, *res_proc;
+
+static hptime_t start, end;
+
+static uint8_t raster[RAST_SIZE(128, 96)];
+static Bitmap bm;
+
+extern Font font_helvB10;
+
+static void led_init(void)
+{
+ /* Enable the GPIO port that is used for the on-board LED */
+ SYSCTL_RCGC2_R = SYSCTL_RCGC2_GPIOG;
+ /*
+ * Perform a dummy read to insert a few cycles delay before enabling
+ * the peripheral.
+ */
+ (void)SYSCTL_RCGC2_R;
+ /* Enable the GPIO pin for the LED */
+ GPIO_PORTG_DIR_R = 0x04;
+ GPIO_PORTG_DEN_R = 0x04;
+}
+
+INLINE void led_on(void)
+{
+ GPIO_PORTG_DATA_R |= 0x04;
+}
+
+INLINE void led_off(void)
+{
+ GPIO_PORTG_DATA_R &= ~0x04;
+}
+
+INLINE hptime_t get_hp_ticks(void)
+{
+ return (TIMER_HW_CNT - timer_hw_hpread()) +
+ timer_clock_unlocked() * TIMER_HW_CNT;
+}
+
+static void NORETURN res_process(void)
+{
+ const char spinner[] = {'/', '-', '\\', '|'};
+ char buffer[256], c;
+ int i;
+
+ for (i = 0; ; i++)
+ {
+ ticks_t clock;
+
+ sig_wait(SIG_USER0);
+ clock = timer_clock_unlocked();
+
+ /* Display uptime (in ticks) */
+ buffer[sizeof(buffer) - 1] = '\0';
+ snprintf(buffer, sizeof(buffer) - 1,
+ "uptime: %lu sec", clock / 1000);
+ text_xprintf(&bm, 2, 0, TEXT_FILL, buffer);
+
+ /* Show context switch (in clock cycles) */
+ c = spinner[i % countof(spinner)];
+ buffer[sizeof(buffer) - 1] = '\0';
+ snprintf(buffer, sizeof(buffer) - 1,
+ "%c Context switch %c", c, c);
+ text_xprintf(&bm, 4, 0, TEXT_CENTER | TEXT_FILL, buffer);
+ buffer[sizeof(buffer) - 1] = '\0';
+ snprintf(buffer, sizeof(buffer) - 1,
+ " %lu clock cycles", end - start);
+ text_xprintf(&bm, 6, 0, TEXT_FILL, buffer);
+
+ /* Show context switch (in usec) */
+ buffer[sizeof(buffer) - 1] = '\0';
+ snprintf(buffer, sizeof(buffer) - 1,
+ " %lu.%lu usec",
+ ((end - start) * 1000000) / CPU_FREQ,
+ ((end - start) * (100000000 / CPU_FREQ)) % 100);
+ text_xprintf(&bm, 7, 0, TEXT_FILL, buffer);
+ lm3s_lcd_blitBitmap(&bm);
+
+ /* Blink the status LED and restart the test */
+ led_off();
+ timer_delay(100);
+ led_on();
+ sig_send(lp_proc, SIG_USER0);
+ }
+}
+
+static void NORETURN hp_process(void)
+{
+ while (1)
+ {
+ sig_wait(SIG_USER0);
+ end = get_hp_ticks();
+ sig_send(res_proc, SIG_USER0);
+ }
+}
+
+static void NORETURN lp_process(void)
+{
+ while (1)
+ {
+ start = get_hp_ticks();
+ sig_send(hp_proc, SIG_USER0);
+ sig_wait(SIG_USER0);
+ }
+}
+
+/**
+ * Show the splash screen
*/
+static void bouncing_logo(Bitmap *bm)
+{
+ const long SPEED_SCALE = 1000;
+ const long GRAVITY_ACCEL = 100;
+ const long BOUNCE_ELASTICITY = 2;
+ const long TOT_FRAMES = 100;
+ long h = (long)(-bertos_logo.height) * SPEED_SCALE;
+ long speed = 0, i;
+
+ for (i = 0; i < TOT_FRAMES; i++)
+ {
+ /* Move */
+ h += speed;
+
+ /* Gravity acceleration */
+ speed += GRAVITY_ACCEL;
-#include "bertos/cpu/detect.h"
+ if (h > 0 && speed > 0)
+ {
+ /* Bounce */
+ speed = -(speed / BOUNCE_ELASTICITY);
-int main (void)
+ }
+ /* Update graphics */
+ gfx_blitImage(bm,
+ (LCD_WIDTH - bertos_logo.width) / 2,
+ (LCD_HEIGHT - bertos_logo.height) / 2 + h / SPEED_SCALE,
+ &bertos_logo);
+ lm3s_lcd_blitBitmap(bm);
+ timer_delay(5);
+ }
+}
+
+int main(void)
{
- int c;
+ char buffer[32];
+
+ IRQ_ENABLE;
+ kdbg_init();
+
+ kputs("Init LED..");
+ led_init();
+ kputs("Done.\n");
+ kputs("Init Timer..");
+ timer_init();
+ kputs("Done.\n");
+ kputs("Init Process..");
+ proc_init();
+ kputs("Done.\n");
+ kputs("Init OLED display..");
+ lm3s_lcd_init(CPU_FREQ / 2);
+ gfx_bitmapInit(&bm, raster, LCD_WIDTH, LCD_HEIGHT);
+ gfx_setFont(&bm, &font_helvB10);
+ kputs("Done.\n");
+
+ bouncing_logo(&bm);
+
+ gfx_bitmapClear(&bm);
+#ifdef _DEBUG
+ text_xprintf(&bm, 4, 0, TEXT_CENTER | TEXT_FILL, "BeRTOS up & running!");
+ lm3s_lcd_blitBitmap(&bm);
+ proc_testRun();
+#endif
+ snprintf(buffer, sizeof(buffer),
+ "CPU: Cortex-M3 %luMHz", CPU_FREQ / 1000000);
+ text_xprintf(&bm, 0, 0, TEXT_FILL, buffer);
+ lm3s_lcd_blitBitmap(&bm);
+ text_xprintf(&bm, 1, 0, TEXT_FILL, "Board: LM3S1968 EVB");
+ lm3s_lcd_blitBitmap(&bm);
+
+ hp_proc = proc_new(hp_process, NULL, PROC_STACK_SIZE, hp_stack);
+ lp_proc = proc_new(lp_process, NULL, PROC_STACK_SIZE, lp_stack);
+
+ res_proc = proc_current();
+
+ proc_setPri(hp_proc, 2);
+ proc_setPri(lp_proc, 1);
- for (;;)
- c++;
- return 0;
+ res_process();
}
projects / bertos.git / blobdiff