X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;ds=sidebyside;f=boards%2Fsam3n-ek%2Fexamples%2Fdisplay%2Fmain.c;fp=boards%2Fsam3n-ek%2Fexamples%2Fdisplay%2Fmain.c;h=7eccf43cc24a7abcd923d340ec2ca60ad4186c3a;hb=8863f70e42fd5c7f2a503afb147bbc21b4a42c97;hp=0000000000000000000000000000000000000000;hpb=983f074406bedb68909bf0439942e3b5dddc5579;p=bertos.git diff --git a/boards/sam3n-ek/examples/display/main.c b/boards/sam3n-ek/examples/display/main.c new file mode 100644 index 00000000..7eccf43c --- /dev/null +++ b/boards/sam3n-ek/examples/display/main.c @@ -0,0 +1,426 @@ +/** + * \file + * + * + * \brief Atmel SAM3N-EK testcase + * + * \author Stefano Fedrigo + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "hw/hw_spi.h" +#include "bitmaps.h" + + +// Lcd +#define LCD_BACKLIGHT_MAX 15 +#define LCD_BACKLIGHT_PIN BV(13) // Port C +#define LCD_SPICLOCK 12000000 // Minimum cycle len = 80 ns according specs + +// Leds +#define LED_BLUE_PIN BV(23) // Port A +#define LED_AMBER_PIN BV(25) // Port A +#define LED_GREEN_PIN BV(14) // Port B + +// Keyboard +#define KEY_MASK (K_LEFT | K_RIGHT) + +// Kernel +#define PROC_STACK_SIZE KERN_MINSTACKSIZE * 2 + +#if CONFIG_KERN_HEAP +#define hp_stack NULL +#define lp_stack NULL +#define led_stack NULL +#else +static PROC_DEFINE_STACK(hp_stack, PROC_STACK_SIZE); +static PROC_DEFINE_STACK(lp_stack, PROC_STACK_SIZE); +static PROC_DEFINE_STACK(led_stack, PROC_STACK_SIZE); +#endif + +struct SpiDmaAt91 spi; +static uint8_t raster[RAST_SIZE(LCD_WIDTH, LCD_HEIGHT)]; +static Bitmap lcd_bitmap; +extern Font font_gohu; +static int lcd_brightness = LCD_BACKLIGHT_MAX; +static Process *hp_proc, *lp_proc, *led_proc; +static hptime_t start, end; + + +/* + * Leds + */ +static void led_init(void) +{ + PIOA_SODR = LED_BLUE_PIN | LED_AMBER_PIN; + PIOA_OER = LED_BLUE_PIN | LED_AMBER_PIN; + PIOA_PER = LED_BLUE_PIN | LED_AMBER_PIN; + + PIOB_SODR = LED_GREEN_PIN; + PIOB_OER = LED_GREEN_PIN; + PIOB_PER = LED_GREEN_PIN; +} + +INLINE void led_on(int idx) +{ + if (idx == 0) + PIOA_CODR = LED_BLUE_PIN; + else if (idx == 1) + PIOB_CODR = LED_GREEN_PIN; + else if (idx == 2) + PIOA_CODR = LED_AMBER_PIN; +} + +INLINE void led_off(int idx) +{ + if (idx == 0) + PIOA_SODR = LED_BLUE_PIN; + else if (idx == 1) + PIOB_SODR = LED_GREEN_PIN; + else if (idx == 2) + PIOA_SODR = LED_AMBER_PIN; +} + +static bool led_blinking; + +static void NORETURN led_process(void) +{ + unsigned i; + + for (i = 0; ; i++) + { + if (!led_blinking) + { + led_off(0); + led_off(1); + led_off(2); + sig_wait(SIG_USER0); + } + led_on(i % 3); + led_off((i-1) % 3); + timer_delay(100); + } +} + +static void led_test(UNUSED_ARG(Bitmap *, bm)) +{ + led_blinking = !led_blinking; + sig_send(led_proc, SIG_USER0); +} + +static void bouncing_logo(Bitmap *bm) +{ + const long SPEED_SCALE = 1000; + const long GRAVITY_ACCEL = 100; + const long BOUNCE_ELASTICITY = 1; + long h = (long)(-bertos_logo.height) * SPEED_SCALE; + long speed = 0, i; + + for (i = 0; ; i++) + { + /* Move */ + h += speed; + + /* Gravity acceleration */ + speed += GRAVITY_ACCEL; + + if (h > 0 && speed > 0) + { + /* Bounce */ + speed = -(speed / BOUNCE_ELASTICITY); + + } + /* Update graphics */ + gfx_bitmapClear(bm); + gfx_blitImage(bm, + (LCD_WIDTH - bertos_logo.width) / 2, + (LCD_HEIGHT - bertos_logo.height) / 2 + h / SPEED_SCALE, + &bertos_logo); + text_xprintf(bm, 13, 0, TEXT_FILL | TEXT_CENTER, "Press any key to quit"); + lcd_ili9225_blitBitmap(bm); + timer_delay(15); + if (kbd_peek() & KEY_MASK) + break; + } +} + +static void screen_saver(Bitmap *bm) +{ + int x1, y1, x2, y2; + int i; + + for (i = 0; ; i++) + { + x1 = i % LCD_WIDTH; + y1 = i % LCD_HEIGHT; + + x2 = LCD_WIDTH - i % LCD_WIDTH; + y2 = LCD_HEIGHT - i % LCD_HEIGHT; + + gfx_bitmapClear(bm); + gfx_rectDraw(bm, x1, y1, x2, y2); + lcd_ili9225_blitBitmap(bm); + if (kbd_peek() & KEY_MASK) + break; + } +} + +static void robot_logo(UNUSED_ARG(Bitmap *, bm)) +{ + lcd_ili9225_blitBitmap24(0, 0, BMP_THINKING_WIDTH, BMP_THINKING_HEIGHT, bmp_thinking); + + while (!(kbd_peek() & KEY_MASK)) + timer_delay(50); +} + + +INLINE hptime_t get_hp_ticks(void) +{ + return (timer_clock_unlocked() * TIMER_HW_CNT) + timer_hw_hpread(); +} + +static void NORETURN hp_process(void) +{ + while (1) + { + sig_wait(SIG_USER0); + end = get_hp_ticks(); + timer_delay(100); + sig_send(lp_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); + } +} + +static void res_process(void) +{ + const char spinner[] = {'/', '-', '\\', '|'}; + int i; + char c; + + for (i = 0; ; i++) + { + /* Show context switch (in clock cycles) */ + c = spinner[i % countof(spinner)]; + text_xprintf(&lcd_bitmap, 3, 0, TEXT_CENTER | TEXT_FILL, "%c Context switch %c", c, c); + text_xprintf(&lcd_bitmap, 5, 0, TEXT_FILL, " %lu clock cycles", end - start); + /* Show context switch (in usec) */ + text_xprintf(&lcd_bitmap, 6, 0, TEXT_FILL, + " %lu.%lu usec", + ((end - start) * 1000000) / CPU_FREQ, + ((end - start) * (100000000 / CPU_FREQ)) % 100); + lcd_ili9225_blitBitmap(&lcd_bitmap); + timer_delay(5); + if (kbd_peek() & KEY_MASK) + break; + } +} + +static void context_switch_test(Bitmap *bm) +{ + const Font *old_font = bm->font; + gfx_setFont(&lcd_bitmap, &font_gohu); + + gfx_bitmapClear(bm); + text_xprintf(bm, 0, 0, TEXT_FILL, + "CPU: Cortex-M3 %luMHz", CPU_FREQ / 1000000); + text_xprintf(bm, 1, 0, TEXT_FILL, "Board: SAM3N-EK EVB"); + + res_process(); + + gfx_setFont(&lcd_bitmap, old_font); +} + +static void uptime(Bitmap *bm) +{ + gfx_bitmapClear(bm); + text_xprintf(bm, 0, 0, TEXT_FILL | TEXT_CENTER, "Uptime"); + while (1) + { + ticks_t clock = ticks_to_ms(timer_clock_unlocked()); + + /* Display uptime (in ticks) */ + text_xprintf(&lcd_bitmap, 2, 0, TEXT_FILL | TEXT_CENTER, + "seconds: %lu", clock / 1000); + lcd_ili9225_blitBitmap(bm); + timer_delay(5); + if (kbd_peek() & KEY_MASK) + break; + } +} + +/* + * Lcd + */ +static void initBacklight(void) +{ + PIOC_OER = LCD_BACKLIGHT_PIN; + PIOC_SODR = LCD_BACKLIGHT_PIN; + PIOC_PER = LCD_BACKLIGHT_PIN; +} + +static void setBacklight(unsigned level) +{ + unsigned i; + + if (level > LCD_BACKLIGHT_MAX) + level = LCD_BACKLIGHT_MAX; + + for (i = level; i <= LCD_BACKLIGHT_MAX; i++) + { + PIOC_CODR = LCD_BACKLIGHT_PIN; + PIOC_CODR = LCD_BACKLIGHT_PIN; + PIOC_CODR = LCD_BACKLIGHT_PIN; + + PIOC_SODR = LCD_BACKLIGHT_PIN; + PIOC_SODR = LCD_BACKLIGHT_PIN; + PIOC_SODR = LCD_BACKLIGHT_PIN; + } +} + +static void setBrightness(Bitmap *bm) +{ + while (1) + { + gfx_bitmapClear(bm); + text_xprintf(bm, 1, 0, TEXT_FILL | TEXT_CENTER, "Brightness: %d", lcd_brightness); + text_xprintf(bm, 3, 0, TEXT_FILL | TEXT_CENTER, "RIGHT key: change"); + text_xprintf(bm, 4, 0, TEXT_FILL | TEXT_CENTER, "LEFT key: back "); + lcd_ili9225_blitBitmap(bm); + + keymask_t mask = kbd_get(); + + if (mask & K_LEFT) + break; + else if (mask & K_RIGHT) + { + if (++lcd_brightness > LCD_BACKLIGHT_MAX) + lcd_brightness = 0; + setBacklight(lcd_brightness); + } + } +} + + +static void NORETURN soft_reset(Bitmap * bm) +{ + int i; + + gfx_bitmapClear(bm); + for (i = 5; i; --i) + { + text_xprintf(bm, 2, 0, TEXT_FILL | TEXT_CENTER, "%d", i); + lcd_ili9225_blitBitmap(bm); + timer_delay(1000); + } + text_xprintf(bm, 2, 0, TEXT_FILL | TEXT_CENTER, "REBOOT"); + lcd_ili9225_blitBitmap(bm); + timer_delay(1000); + + /* Perform a software reset request */ + HWREG(NVIC_APINT) = NVIC_APINT_VECTKEY | NVIC_APINT_SYSRESETREQ; + UNREACHABLE(); +} + + +static struct MenuItem main_items[] = +{ + { (const_iptr_t)"LED blinking", 0, (MenuHook)led_test, (iptr_t)&lcd_bitmap }, + { (const_iptr_t)"Graphics demo", 0, (MenuHook)robot_logo, (iptr_t)&lcd_bitmap }, + { (const_iptr_t)"Bouncing logo", 0, (MenuHook)bouncing_logo, (iptr_t)&lcd_bitmap }, + { (const_iptr_t)"Screen saver demo", 0, (MenuHook)screen_saver, (iptr_t)&lcd_bitmap }, + { (const_iptr_t)"Scheduling test", 0, (MenuHook)context_switch_test, (iptr_t)&lcd_bitmap }, + { (const_iptr_t)"Show uptime", 0, (MenuHook)uptime, (iptr_t)&lcd_bitmap }, + { (const_iptr_t)"Display brightness", 0, (MenuHook)setBrightness, (iptr_t)&lcd_bitmap }, + { (const_iptr_t)"Reboot", 0, (MenuHook)soft_reset, (iptr_t)&lcd_bitmap }, + { (const_iptr_t)0, 0, NULL, (iptr_t)0 } +}; +static struct Menu main_menu = { main_items, "BeRTOS", MF_STICKY | MF_SAVESEL, &lcd_bitmap, 0, lcd_ili9225_blitBitmap }; + + +int main(void) +{ + IRQ_ENABLE; + + kdbg_init(); + led_init(); + timer_init(); + proc_init(); + + spi_dma_init(&spi); + spi_dma_setclock(LCD_SPICLOCK); + lcd_ili9225_init(&spi.fd); + initBacklight(); + setBacklight(lcd_brightness); + + gfx_bitmapInit(&lcd_bitmap, raster, LCD_WIDTH, LCD_HEIGHT); + gfx_setFont(&lcd_bitmap, &font_luBS14); + lcd_ili9225_blitBitmap(&lcd_bitmap); + + kbd_init(); + + hp_proc = proc_new(hp_process, NULL, PROC_STACK_SIZE, hp_stack); + lp_proc = proc_new(lp_process, NULL, PROC_STACK_SIZE, lp_stack); + led_proc = proc_new(led_process, NULL, PROC_STACK_SIZE, led_stack); + + proc_setPri(hp_proc, 2); + proc_setPri(lp_proc, 1); + + lcd_ili9225_blitBitmap24(0, 50, BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, bmp_logo); + timer_delay(3000); + + while (1) + { + menu_handle(&main_menu); + cpu_relax(); + } +}