4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
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18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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21 * library without restriction. Specifically, if other files instantiate
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24 * file does not by itself cause the resulting executable to be covered by
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26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2011 Develer S.r.l. (http://www.develer.com/)
33 * \brief Atmel SAM3X-EK simple demo
35 * \author Stefano Fedrigo <aleph@develer.com>
40 #include "hw/hw_led.h"
41 #include "hw/hw_lcd.h"
43 #include <cfg/debug.h>
45 #include <drv/timer.h>
47 #include <drv/lcd_hx8347.h>
52 #include <icons/logo.h>
54 #include <kern/signal.h>
55 #include <kern/proc.h>
60 #define KEY_MASK (K_LEFT | K_RIGHT)
63 #define PROC_STACK_SIZE KERN_MINSTACKSIZE * 2
68 #define led_stack NULL
70 static PROC_DEFINE_STACK(hp_stack, PROC_STACK_SIZE);
71 static PROC_DEFINE_STACK(lp_stack, PROC_STACK_SIZE);
72 static PROC_DEFINE_STACK(led_stack, PROC_STACK_SIZE);
75 static uint8_t raster[RAST_SIZE(LCD_WIDTH, LCD_HEIGHT)];
76 static Bitmap lcd_bitmap;
77 extern Font font_gohu;
78 static int lcd_brightness = LCD_BACKLIGHT_MAX;
79 static Process *hp_proc, *lp_proc, *led_proc;
80 static hptime_t start, end;
83 static bool led_blinking;
85 static void NORETURN led_process(void)
104 static void led_test(UNUSED_ARG(Bitmap *, bm))
106 led_blinking = !led_blinking;
107 sig_send(led_proc, SIG_USER0);
110 static void bouncing_logo(Bitmap *bm)
112 const long SPEED_SCALE = 1000;
113 const long GRAVITY_ACCEL = 100;
114 const long BOUNCE_ELASTICITY = 1;
115 long h = (long)(-bertos_logo.height) * SPEED_SCALE;
123 /* Gravity acceleration */
124 speed += GRAVITY_ACCEL;
126 if (h > 0 && speed > 0)
129 speed = -(speed / BOUNCE_ELASTICITY);
132 /* Update graphics */
135 (LCD_WIDTH - bertos_logo.width) / 2,
136 (LCD_HEIGHT - bertos_logo.height) / 2 + h / SPEED_SCALE,
138 text_xprintf(bm, 13, 0, TEXT_FILL | TEXT_CENTER, "Press any key to quit");
139 lcd_hx8347_blitBitmap(bm);
141 if (kbd_peek() & KEY_MASK)
146 static void screen_saver(Bitmap *bm)
156 x2 = LCD_WIDTH - i % LCD_WIDTH;
157 y2 = LCD_HEIGHT - i % LCD_HEIGHT;
160 gfx_rectDraw(bm, x1, y1, x2, y2);
161 lcd_hx8347_blitBitmap(bm);
162 if (kbd_peek() & KEY_MASK)
167 static void show_logo(UNUSED_ARG(Bitmap *, bm))
169 lcd_hx8347_blitBitmap24(10, 52, BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, bmp_logo);
171 while (!(kbd_peek() & KEY_MASK))
176 INLINE hptime_t get_hp_ticks(void)
178 return (timer_clock_unlocked() * TIMER_HW_CNT) + timer_hw_hpread();
181 static void NORETURN hp_process(void)
186 end = get_hp_ticks();
188 sig_send(lp_proc, SIG_USER0);
192 static void NORETURN lp_process(void)
196 start = get_hp_ticks();
197 sig_send(hp_proc, SIG_USER0);
202 static void res_process(void)
204 const char spinner[] = {'/', '-', '\\', '|'};
210 /* Show context switch (in clock cycles) */
211 c = spinner[i % countof(spinner)];
212 text_xprintf(&lcd_bitmap, 3, 0, TEXT_CENTER | TEXT_FILL, "%c Context switch %c", c, c);
213 text_xprintf(&lcd_bitmap, 5, 0, TEXT_FILL, " %lu clock cycles", end - start);
214 /* Show context switch (in usec) */
215 text_xprintf(&lcd_bitmap, 6, 0, TEXT_FILL,
217 ((end - start) * 1000000) / CPU_FREQ,
218 ((end - start) * (100000000 / CPU_FREQ)) % 100);
219 lcd_hx8347_blitBitmap(&lcd_bitmap);
221 if (kbd_peek() & KEY_MASK)
226 static void context_switch_test(Bitmap *bm)
228 const Font *old_font = bm->font;
229 gfx_setFont(&lcd_bitmap, &font_gohu);
232 text_xprintf(bm, 0, 0, TEXT_FILL,
233 "CPU: Cortex-M3 %luMHz", CPU_FREQ / 1000000);
234 text_xprintf(bm, 1, 0, TEXT_FILL, "Board: SAM3X-EK EVB");
238 gfx_setFont(&lcd_bitmap, old_font);
241 static void uptime(Bitmap *bm)
244 text_xprintf(bm, 0, 0, TEXT_FILL | TEXT_CENTER, "Uptime");
247 ticks_t clock = ticks_to_ms(timer_clock_unlocked());
249 /* Display uptime (in ticks) */
250 text_xprintf(&lcd_bitmap, 2, 0, TEXT_FILL | TEXT_CENTER,
251 "seconds: %lu", clock / 1000);
252 lcd_hx8347_blitBitmap(bm);
254 if (kbd_peek() & KEY_MASK)
262 static void setBrightness(Bitmap *bm)
267 text_xprintf(bm, 1, 0, TEXT_FILL | TEXT_CENTER, "Brightness: %d", lcd_brightness);
268 text_xprintf(bm, 3, 0, TEXT_FILL | TEXT_CENTER, "RIGHT key: change");
269 text_xprintf(bm, 4, 0, TEXT_FILL | TEXT_CENTER, "LEFT key: back ");
270 lcd_hx8347_blitBitmap(bm);
272 keymask_t mask = kbd_get();
276 else if (mask & K_RIGHT)
278 if (++lcd_brightness > LCD_BACKLIGHT_MAX)
280 lcd_setBacklight(lcd_brightness);
286 static void NORETURN soft_reset(Bitmap * bm)
293 text_xprintf(bm, 2, 0, TEXT_FILL | TEXT_CENTER, "%d", i);
294 lcd_hx8347_blitBitmap(bm);
297 text_xprintf(bm, 2, 0, TEXT_FILL | TEXT_CENTER, "REBOOT");
298 lcd_hx8347_blitBitmap(bm);
301 /* Perform a software reset request */
302 HWREG(NVIC_APINT) = NVIC_APINT_VECTKEY | NVIC_APINT_SYSRESETREQ;
307 static struct MenuItem main_items[] =
309 { (const_iptr_t)"LED blinking", 0, (MenuHook)led_test, (iptr_t)&lcd_bitmap },
310 { (const_iptr_t)"Graphics demo", 0, (MenuHook)show_logo, (iptr_t)&lcd_bitmap },
311 { (const_iptr_t)"Bouncing logo", 0, (MenuHook)bouncing_logo, (iptr_t)&lcd_bitmap },
312 { (const_iptr_t)"Screen saver demo", 0, (MenuHook)screen_saver, (iptr_t)&lcd_bitmap },
313 { (const_iptr_t)"Scheduling test", 0, (MenuHook)context_switch_test, (iptr_t)&lcd_bitmap },
314 { (const_iptr_t)"Show uptime", 0, (MenuHook)uptime, (iptr_t)&lcd_bitmap },
315 { (const_iptr_t)"Display brightness", 0, (MenuHook)setBrightness, (iptr_t)&lcd_bitmap },
316 { (const_iptr_t)"Reboot", 0, (MenuHook)soft_reset, (iptr_t)&lcd_bitmap },
317 { (const_iptr_t)0, 0, NULL, (iptr_t)0 }
319 static struct Menu main_menu = { main_items, "BeRTOS", MF_STICKY | MF_SAVESEL, &lcd_bitmap, 0, lcd_hx8347_blitBitmap };
332 lcd_setBacklight(lcd_brightness);
334 gfx_bitmapInit(&lcd_bitmap, raster, LCD_WIDTH, LCD_HEIGHT);
335 gfx_setFont(&lcd_bitmap, &font_luBS14);
336 lcd_hx8347_blitBitmap(&lcd_bitmap);
340 hp_proc = proc_new(hp_process, NULL, PROC_STACK_SIZE, hp_stack);
341 lp_proc = proc_new(lp_process, NULL, PROC_STACK_SIZE, lp_stack);
342 led_proc = proc_new(led_process, NULL, PROC_STACK_SIZE, led_stack);
344 proc_setPri(hp_proc, 2);
345 proc_setPri(lp_proc, 1);
347 lcd_hx8347_blitBitmap24(10, 52, BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, bmp_logo);
352 menu_handle(&main_menu);