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
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
33 * \brief LM3S1968 Cortex-M3 testcase
35 * \author Andrea Righi <arighi@develer.com>
38 #include <cfg/compiler.h>
39 #include <cfg/cfg_gfx.h>
41 #include <drv/timer.h>
42 #include <drv/lcd_lm3s.h>
47 #include <icons/logo.h>
50 #define PROC_STACK_SIZE KERN_MINSTACKSIZE * 2
56 static PROC_DEFINE_STACK(hp_stack, PROC_STACK_SIZE);
57 static PROC_DEFINE_STACK(lp_stack, PROC_STACK_SIZE);
60 static Process *hp_proc, *lp_proc, *res_proc;
62 static hptime_t start, end;
64 static uint8_t raster[RAST_SIZE(128, 96)];
67 extern Font font_helvB10;
69 static void led_init(void)
71 /* Enable the GPIO port that is used for the on-board LED */
72 SYSCTL_RCGC2_R = SYSCTL_RCGC2_GPIOG;
74 * Perform a dummy read to insert a few cycles delay before enabling
78 /* Enable the GPIO pin for the LED */
79 GPIO_PORTG_DIR_R = 0x04;
80 GPIO_PORTG_DEN_R = 0x04;
83 INLINE void led_on(void)
85 GPIO_PORTG_DATA_R |= 0x04;
88 INLINE void led_off(void)
90 GPIO_PORTG_DATA_R &= ~0x04;
93 INLINE hptime_t get_hp_ticks(void)
95 return (TIMER_HW_CNT - timer_hw_hpread()) +
96 timer_clock_unlocked() * TIMER_HW_CNT;
99 static void NORETURN res_process(void)
101 const char spinner[] = {'/', '-', '\\', '|'};
110 clock = timer_clock_unlocked();
112 /* Display uptime (in ticks) */
113 buffer[sizeof(buffer) - 1] = '\0';
114 snprintf(buffer, sizeof(buffer) - 1,
115 "uptime: %lu sec", clock / 1000);
116 text_xprintf(&bm, 2, 0, TEXT_FILL, buffer);
118 /* Show context switch (in clock cycles) */
119 c = spinner[i % countof(spinner)];
120 buffer[sizeof(buffer) - 1] = '\0';
121 snprintf(buffer, sizeof(buffer) - 1,
122 "%c Context switch %c", c, c);
123 text_xprintf(&bm, 4, 0, TEXT_CENTER | TEXT_FILL, buffer);
124 buffer[sizeof(buffer) - 1] = '\0';
125 snprintf(buffer, sizeof(buffer) - 1,
126 " %lu clock cycles", end - start);
127 text_xprintf(&bm, 6, 0, TEXT_FILL, buffer);
129 /* Show context switch (in usec) */
130 buffer[sizeof(buffer) - 1] = '\0';
131 snprintf(buffer, sizeof(buffer) - 1,
133 ((end - start) * 1000000) / CPU_FREQ,
134 ((end - start) * (100000000 / CPU_FREQ)) % 100);
135 text_xprintf(&bm, 7, 0, TEXT_FILL, buffer);
136 lm3s_lcd_blitBitmap(&bm);
138 /* Blink the status LED and restart the test */
142 sig_send(lp_proc, SIG_USER0);
146 static void NORETURN hp_process(void)
151 end = get_hp_ticks();
152 sig_send(res_proc, SIG_USER0);
156 static void NORETURN lp_process(void)
160 start = get_hp_ticks();
161 sig_send(hp_proc, SIG_USER0);
167 * Show the splash screen
169 static void bouncing_logo(Bitmap *bm)
171 const long SPEED_SCALE = 1000;
172 const long GRAVITY_ACCEL = 100;
173 const long BOUNCE_ELASTICITY = 2;
174 const long TOT_FRAMES = 100;
175 long h = (long)(-bertos_logo.height) * SPEED_SCALE;
178 for (i = 0; i < TOT_FRAMES; i++)
183 /* Gravity acceleration */
184 speed += GRAVITY_ACCEL;
186 if (h > 0 && speed > 0)
189 speed = -(speed / BOUNCE_ELASTICITY);
192 /* Update graphics */
194 (LCD_WIDTH - bertos_logo.width) / 2,
195 (LCD_HEIGHT - bertos_logo.height) / 2 + h / SPEED_SCALE,
197 lm3s_lcd_blitBitmap(bm);
212 kputs("Init Timer..");
215 kputs("Init Process..");
218 kputs("Init OLED display..");
219 lm3s_lcd_init(CPU_FREQ / 2);
220 gfx_bitmapInit(&bm, raster, LCD_WIDTH, LCD_HEIGHT);
221 gfx_setFont(&bm, &font_helvB10);
226 gfx_bitmapClear(&bm);
228 text_xprintf(&bm, 4, 0, TEXT_CENTER | TEXT_FILL, "BeRTOS up & running!");
229 lm3s_lcd_blitBitmap(&bm);
232 snprintf(buffer, sizeof(buffer),
233 "CPU: Cortex-M3 %luMHz", CPU_FREQ / 1000000);
234 text_xprintf(&bm, 0, 0, TEXT_FILL, buffer);
235 lm3s_lcd_blitBitmap(&bm);
236 text_xprintf(&bm, 1, 0, TEXT_FILL, "Board: LM3S1968 EVB");
237 lm3s_lcd_blitBitmap(&bm);
239 hp_proc = proc_new(hp_process, NULL, PROC_STACK_SIZE, hp_stack);
240 lp_proc = proc_new(lp_process, NULL, PROC_STACK_SIZE, lp_stack);
242 res_proc = proc_current();
244 proc_setPri(hp_proc, 2);
245 proc_setPri(lp_proc, 1);