task_gfx.c File Reference

GFX task from the HTTP Netconn Example.

Copyright (c) 2011-2018 Microchip Technology Inc. and its subsidiaries.

#include "task_defs.h"
#include "arm_math.h"
#include "logo_atmel.h"
#include <FreeRTOS.h>
#include <FreeRTOS_CLI.h>
#include <StackMacros.h>
#include <croutine.h>
#include <list.h>
#include <mpu_wrappers.h>
#include <portable.h>
#include <projdefs.h>
#include <queue.h>
#include <semphr.h>
#include <task.h>
#include <timers.h>
#include <pmc.h>
#include <sysclk.h>
#include "ili93xx.h"
#include "ili9325_regs.h"
#include "ili9341_regs.h"
#include "aat31xx.h"
#include "gpio.h"
#include "pio_handler.h"
#include "smc.h"
#include "ethernet.h"
#include "rtouch.h"

Data Structures
struct	bmpfile_header

Macros
#define	ILI93XX_LCD_CS   1
#define	IRQ_PRIOR_PIO   13
	IRQ priority for PIO (The lower the value, the greater the priority) More...

Functions
void	create_gfx_task (uint16_t stack_depth_words, unsigned portBASE_TYPE task_priority)
	Create the GFX task. More...
static void	event_handler (rtouch_event_t const *event)
	Callback called when the pen is pressed on the touchscreen. More...
static void	gfx_draw_bmpfile (const uint8_t *bmpImage)
	Draw a bitmap image. More...
static void	gfx_init (void)
	Initialize the LCD. More...
static void	gfx_task (void *pvParameters)
	GFX task core function. More...

Variables
uint32_t	app_hold = 1
	Used to block the application on instruction screen. More...
int8_t	g_c_ipconfig [25]
uint32_t	g_ip_mode = 0
static const portTickType	gfx_refresh_rate = 1000UL / portTICK_RATE_MS
const portTickType	instructions_delay = 50UL / portTICK_RATE_MS
	Small delay to hold tasks, during instruction screen. More...
static const portTickType	presentation_delay = 2000UL / portTICK_RATE_MS
static const portTickType	touch_delay = 10UL / portTICK_RATE_MS

#define ILI93XX_LCD_CS   1

Referenced by gfx_init().

#define IRQ_PRIOR_PIO   13

IRQ priority for PIO (The lower the value, the greater the priority)

Referenced by gfx_task().

void create_gfx_task	(	uint16_t	stack_depth_words,
		unsigned portBASE_TYPE	task_priority
	)

Create the GFX task.

Parameters

stack_depth_words	Task stack size in 32 bits word.
task_priority	Task priority.

References gfx_init(), gfx_task(), NULL, and xTaskCreate.

Referenced by main().

static void event_handler ( rtouch_event_t const *  event )

static

Callback called when the pen is pressed on the touchscreen.

Parameters

x	horizontal position (in pixel if ts calibrated).
y	vertical position (in pixel if ts calibrated).

References COLOR_BLACK, COLOR_GRAY, COLOR_LIGHTGREY, g_ip_mode, ili93xx_draw_filled_rectangle(), ili93xx_draw_rectangle(), ili93xx_draw_string(), ili93xx_set_foreground_color(), RTOUCH_MOVE, RTOUCH_PRESS, and RTOUCH_RELEASE.

Referenced by gfx_task().

static void gfx_draw_bmpfile ( const uint8_t *  bmpImage )

static

Draw a bitmap image.

Expected file format is 320x240, 24 bits, RGB888.

Parameters

bmpImage

Pointer to the bmp file image.

References DEVICE_TYPE_ILI9325, DEVICE_TYPE_ILI9341, bmpfile_header::height, ILI9325_GRAM_DATA_REG, ILI9341_CMD_MEMORY_WRITE, ILI9341_CMD_WRITE_MEMORY_CONTINUE, ili93xx_device_type(), ili93xx_set_cursor_position(), ili93xx_set_window(), LCD_IR(), LCD_WD(), bmpfile_header::offset, and bmpfile_header::width.

Referenced by gfx_task().

static void gfx_init ( void  )

static

Initialize the LCD.

References ili93xx_opt_t::background_color, COLOR_WHITE, ili93xx_opt_t::foreground_color, ili93xx_init(), ILI93XX_LCD_CS, ILI93XX_LCD_HEIGHT, ILI93XX_LCD_WIDTH, pmc_enable_periph_clk(), smc_set_cycle_timing(), smc_set_mode(), smc_set_pulse_timing(), smc_set_setup_timing(), ili93xx_opt_t::ul_height, and ili93xx_opt_t::ul_width.

Referenced by create_gfx_task().

static void gfx_task ( void *  pvParameters )

static

GFX task core function.

Parameters

pvParameters

Junk parameter.

References AAT31XX_MAX_BACKLIGHT_LEVEL, AAT31XX_MIN_BACKLIGHT_LEVEL, aat31xx_set_backlight(), app_hold, COLOR_BLACK, COLOR_LIGHTGREY, COLOR_WHITE, event_handler(), g_c_ipconfig, g_ip_mode, gfx_draw_bmpfile(), gfx_refresh_rate, ili93xx_display_on(), ili93xx_draw_filled_rectangle(), ili93xx_draw_rectangle(), ili93xx_draw_string(), ILI93XX_LCD_HEIGHT, ILI93XX_LCD_WIDTH, ili93xx_set_cursor_position(), ili93xx_set_foreground_color(), init_ethernet(), IRQ_PRIOR_PIO, logo_atmel_bmp, pio_handler_set_priority(), pmc_enable_periph_clk(), presentation_delay, rtouch_enable(), rtouch_init(), rtouch_process(), rtouch_set_calibration_parameter(), rtouch_set_event_handler(), touch_delay, and vTaskDelay().

Referenced by create_gfx_task().

uint32_t app_hold = 1

Used to block the application on instruction screen.

Referenced by gfx_task().

int8_t g_c_ipconfig[25]

Referenced by gfx_task(), and status_callback().

uint32_t g_ip_mode = 0

Referenced by ethernet_configure_interface(), event_handler(), gfx_task(), and status_callback().

const portTickType gfx_refresh_rate = 1000UL / portTICK_RATE_MS

static

Referenced by gfx_task().

const portTickType instructions_delay = 50UL / portTICK_RATE_MS

Small delay to hold tasks, during instruction screen.

const portTickType presentation_delay = 2000UL / portTICK_RATE_MS

static

Referenced by gfx_task().

const portTickType touch_delay = 10UL / portTICK_RATE_MS

static

Referenced by gfx_task().