/*********************************************************************** * * 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); }