-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction. Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License. This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
- *
- * -->
- *
- * \brief LM3S1968 Cortex-M3 testcase
- *
- * \author Andrea Righi <arighi@develer.com>
- */
-
-#include "hw/hw_rit128x96.h"
-
-#include "cfg/compiler.h"
-#include "cfg/cfg_gfx.h"
-
-#include <cpu/irq.h>
-
-#include <drv/timer.h>
-#include <drv/ser.h>
-#include <drv/kbd.h>
-#include <drv/lcd_rit128x96.h>
-
-#include <gfx/gfx.h>
-#include <gfx/font.h>
-#include <gfx/text.h>
-
-#include <gui/menu.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
-#define ser_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(ser_stack, PROC_STACK_SIZE);
-static PROC_DEFINE_STACK(led_stack, PROC_STACK_SIZE);
-#endif
-
-extern Font font_gohu;
-static uint8_t raster[RAST_SIZE(LCD_WIDTH, LCD_HEIGHT)];
-static Bitmap lcd_bitmap;
-
-#define KEY_MASK (K_UP | K_DOWN | K_LEFT | K_RIGHT | K_OK)
-
-static Process *hp_proc, *lp_proc, *led_proc;
-static hptime_t start, end;
-
-static Serial ser_port;
-
-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;
-}
-
-static bool led_blinking;
-
-static void NORETURN led_process(void)
-{
- int i;
-
- for (i = 0; ; i++)
- {
- if (!led_blinking)
- {
- led_off();
- sig_wait(SIG_USER0);
- }
- if (i & 1)
- led_on();
- else
- led_off();
- timer_delay(50);
- }
-}
-
-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, 7, 0, TEXT_FILL | TEXT_CENTER, "Press SELECT to quit");
- rit128x96_blitBitmap(bm);
- timer_delay(5);
- 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);
- rit128x96_blitBitmap(bm);
- if (kbd_peek() & KEY_MASK)
- break;
- }
-}
-
-INLINE hptime_t get_hp_ticks(void)
-{
- return (TIMER_HW_CNT - timer_hw_hpread()) +
- timer_clock_unlocked() * TIMER_HW_CNT;
-}
-
-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);
- rit128x96_blitBitmap(&lcd_bitmap);
- timer_delay(5);
- if (kbd_peek() & KEY_MASK)
- break;
- }
-}
-
-static void context_switch_test(Bitmap *bm)
-{
- gfx_bitmapClear(bm);
- text_xprintf(bm, 0, 0, TEXT_FILL,
- "CPU: Cortex-M3 %luMHz", CPU_FREQ / 1000000);
- rit128x96_blitBitmap(bm);
- text_xprintf(bm, 1, 0, TEXT_FILL, "Board: LM3S1968 EVB");
- rit128x96_blitBitmap(bm);
-
- res_process();
-}
-
-static void uptime(Bitmap *bm)
-{
- extern const Font font_luBS14;
- const Font *old_font;
-
- old_font = bm->font;
-
- /* Set big font */
- gfx_bitmapClear(bm);
- gfx_setFont(bm, &font_luBS14);
- 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,
- "%lu", clock / 1000);
- rit128x96_blitBitmap(bm);
- timer_delay(5);
- if (kbd_peek() & KEY_MASK)
- break;
- }
- gfx_setFont(bm, old_font);
-}
-
-static void NORETURN soft_reset(Bitmap * bm)
-{
- extern const Font font_luBS14;
- int i;
-
- /* Set big font */
- gfx_bitmapClear(bm);
- gfx_setFont(bm, &font_luBS14);
- for (i = 5; i; --i)
- {
- text_xprintf(bm, 2, 0, TEXT_FILL | TEXT_CENTER, "%d", i);
- rit128x96_blitBitmap(bm);
- timer_delay(1000);
- }
- text_xprintf(bm, 2, 0, TEXT_FILL | TEXT_CENTER, "REBOOT");
- rit128x96_blitBitmap(bm);
- timer_delay(1000);
-
- /* Perform a software reset request */
- HWREG(NVIC_APINT) = NVIC_APINT_VECTKEY | NVIC_APINT_SYSRESETREQ;
- UNREACHABLE();
-}
-
-static void NORETURN ser_process(void)
-{
- char buf[32];
- int i;
-
- ser_init(&ser_port, SER_UART0);
- ser_setbaudrate(&ser_port, 115200);
-
- /* BeRTOS terminal */
- for (i = 0; ; i++)
- {
- kfile_printf(&ser_port.fd, "\n\r[%03d] BeRTOS:~$ ", i);
- kfile_gets_echo(&ser_port.fd, buf, sizeof(buf), true);
- kfile_printf(&ser_port.fd, "%s", buf);
- }
-}
-
-static struct MenuItem main_items[] =
-{
- { (const_iptr_t)"LED blinking", 0, (MenuHook)led_test, (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)"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, rit128x96_blitBitmap };
-
-int main(void)
-{
- 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..");
- rit128x96_init();
- gfx_bitmapInit(&lcd_bitmap, raster, LCD_WIDTH, LCD_HEIGHT);
- gfx_setFont(&lcd_bitmap, &font_gohu);
- rit128x96_blitBitmap(&lcd_bitmap);
- kputs("Done.\n");
- kputs("Init Keypad..");
- kbd_init();
- kputs("Done.\n");
-
- 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);
- /* Open a dummy echo terminal on UART0 */
- proc_new(ser_process, NULL, PROC_STACK_SIZE, ser_stack);
-
- proc_setPri(hp_proc, 2);
- proc_setPri(lp_proc, 1);
-
- while (1)
- {
- menu_handle(&main_menu);
- cpu_relax();
- }
-}
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