/***********************************************************************
*
* Function: c_entry
*
* Purpose: Application entry point from the startup code
*
* Processing:
* See function.
*
* Parameters: None
*
* Outputs: None
*
* Returns: Always returns 1, or <0 on an error
*
* Notes: None
*
**********************************************************************/
int c_entry(void)
{
SWIM_WINDOW_T win1;
COLOR_T *fblog;
INT_32 lcddev;
/* Disable interrupts in ARM core */
disable_irq_fiq();
/* Setup miscellaneous board functions */
phy3250_board_init();
/* Set virtual address of MMU table */
cp15_set_vmmu_addr((void *)
(IRAM_BASE + (256 * 1024) - (16 * 1024)));
/* Initialize interrupt system */
int_initialize(0xFFFFFFFF);
/* Install standard IRQ dispatcher at ARM IRQ vector */
int_install_arm_vec_handler(IRQ_VEC, (PFV) lpc32xx_irq_handler);
/* Install RTC interrupt handler as a IRQ interrupts */
int_install_irq_handler(IRQ_RTC, (PFV) rtc_user_interrupt);
/* Open RTC */
rtcdev = rtc_open(RTC, 0);
if (rtcdev == 0)
{
/* Error */
return -1;
}
/* Set a 1s match rate */
secs = lsecs = 0;
mstp.match_num = 0;
mstp.use_match_int = TRUE;
mstp.enable_onsw = FALSE;
mstp.match_tick_val = secs + 1;
rtc_ioctl(rtcdev, RTC_ENABLE, 0);
rtc_ioctl(rtcdev, RTC_SET_COUNT, 0);
rtc_ioctl(rtcdev, RTC_CLEAR_INTS, RTC_MATCH0_INT_STS);
rtc_ioctl(rtcdev, RTC_SETUP_MATCH, (INT_32) &mstp);
/* Setup LCD muxing for STN Color 16BPP */
clkpwr_setup_lcd(CLKPWR_LCDMUX_TFT16, 1);
/* Enable clock to LCD block (HCLK_EN)*/
clkpwr_clk_en_dis(CLKPWR_LCD_CLK, 1);
/* Setup LCD paramaters in the LCD controller */
lcddev = lcd_open(CLCDC, (INT_32) & LCD_DISPLAY);
/* Upper Panel Frame Base Address register */
lcd_ioctl(lcddev, LCD_SET_UP_FB, PHY_LCD_FRAME_BUF);
/* Enable LCD controller and power signals */
lcd_ioctl(lcddev, LCD_PWENABLE, 1);
/* Enable LCD backlight */
phy3250_lcd_backlight_enable(TRUE);
/* Enable LCD power */
phy3250_lcd_power_enable(TRUE);
/* Set frame buffer address */
fblog = (COLOR_T *) cp15_map_physical_to_virtual(PHY_LCD_FRAME_BUF);
/* Create a SWIM window */
swim_window_open(&win1, LCD_DISPLAY.pixels_per_line,
LCD_DISPLAY.lines_per_panel, fblog, 0, 0,
(LCD_DISPLAY.pixels_per_line - 1), (LCD_DISPLAY.lines_per_panel - 1),
1, WHITE, BLACK, BLACK);
swim_put_ltext(&win1, "RTC example: This example will print the message "
"TICK whenever an RTC interrupt occurs (1 second intervals). It will "
"quit after 10 seconds\n");
/* Enable RTC (starts counting) */
rtc_ioctl(rtcdev, RTC_ENABLE, 1);
/* Enable RTC interrupt in the interrupt controller */
int_enable(IRQ_RTC);
/* Enable IRQ interrupts in the ARM core */
enable_irq();
/* Loop for 10 seconds and let interrupts toggle the LEDs */
while (secs < 10)
{
if (lsecs < secs)
{
swim_put_ltext(&win1, "TICK\n");
lsecs = secs;
}
}
/* Disable RTC interrupt in the interrupt controller */
int_disable(IRQ_RTC);
/* Disable interrupts in ARM core */
disable_irq_fiq();
/* Prior to closing the RTC, the ONSW key value is set. This will
allow the RTC to keep it's value across resets as long as RTC
power is maintained */
rtc_ioctl(rtcdev, RTC_SETCLR_KEY, 1);
/* Close RTC and LCD */
rtc_close(rtcdev);
lcd_close(lcddev);
return 1;
}
/*
* sys_rtc_close
* Description: close system RTC
* INPUTS:
int32_t fd -- file descriptor
pcb_t* mypcb -- Process control block
* OUTPUTS: None
* RETURN: None
* SIDE EFFECTS: None
*/
extern int32_t sys_rtc_close(int32_t fd, pcb_t* mypcb)
{
return rtc_close(fd);
}
