/**************************************************************************** * configs/pcduino-a10/src/a1x_leds.c * * Copyright (C) 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include "chip.h" #include "up_arch.h" #include "up_internal.h" #include "pcduino_a10.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* The pcDuino v1 has four green LEDs; three can be controlled from software. * Two are tied to ground and, hence, illuminated by driving the output pins * to a high value: * * 1. LED1 SPI0_CLK SPI0_CLK/UART5_RX/EINT23/PI11 * 2. LED5 IPSOUT From the PMU (not controllable by software) * * And two are pull high and, hence, illuminated by grounding the output: * * 3. LED3 RX_LED LCD1_D16/ATAD12/KP_IN6/SMC_DET/EINT16/CSI1_D16/PH16 * 4. LED4 TX_LED LCD1_D15/ATAD11/KP_IN5/SMC_VPPPP/EINT15/CSI1_D15/PH15 * These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is * defined. In that case, the usage by the board port is defined in * include/board.h and src/stm32_leds.c. The LEDs are used to encode OS-related * events as follows: * * SYMBOL Meaning LED state * LED1 LED3 LED4 * ----------------- ----------------------- ---- ---- ---- ------------ * LED_STARTED NuttX has been started ON OFF OFF * LED_HEAPALLOCATE Heap has been allocated OFF ON OFF * LED_IRQSENABLED Interrupts enabled ON ON OFF * LED_STACKCREATED Idle stack created ON ON OFF * LED_INIRQ In an interrupt N/C N/C Soft glow * LED_SIGNAL In a signal handler N/C N/C Soft glow * LED_ASSERTION An assertion failed N/C N/C Soft glow * LED_PANIC The system has crashed N/C N/C 2Hz Flashing * LED_IDLE MCU is is sleep mode Not used * * After booting, LED1 and 3 are not longer used by the system and can be used for * other purposes by the application (Of course, all LEDs are available to the * application if CONFIG_ARCH_LEDS is not defined. */ /* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG * with CONFIG_DEBUG_VERBOSE too) */ #ifdef CONFIG_DEBUG_LEDS # define leddbg lldbg # define ledvdbg llvdbg #else # define leddbg(x...) # define ledvdbg(x...) #endif /**************************************************************************** * Private Data ****************************************************************************/ /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: a1x_led_initialize * * Description: * Configure LEDs. LEDs are left in the OFF state. * ****************************************************************************/ void a1x_led_initialize(void) { a1x_pio_config(PIO_LED1); a1x_pio_config(PIO_LED3); a1x_pio_config(PIO_LED4); } /**************************************************************************** * Name: board_led_on * * Description: * Select the "logical" ON state: * * SYMBOL Value Meaning LED state * LED1 LED3 LED4 * ----------------- ----- ----------------------- ---- ---- ------------ * LED_STARTED 0 NuttX has been started ON OFF OFF * LED_HEAPALLOCATE 1 Heap has been allocated OFF ON OFF * LED_IRQSENABLED 2 Interrupts enabled ON ON OFF * LED_STACKCREATED 2 Idle stack created ON ON OFF * LED_INIRQ 3 In an interrupt N/C N/C Soft glow * LED_SIGNAL 3 In a signal handler N/C N/C Soft glow * LED_ASSERTION 3 An assertion failed N/C N/C Soft glow * LED_PANIC 3 The system has crashed N/C N/C 2Hz Flashing * LED_IDLE --- MCU is is sleep mode Not used * * LED1 is illuminated by driving the output pins to a high value * LED3 and LED 4 are illuminated by taking the output to ground. * ****************************************************************************/ #ifdef CONFIG_ARCH_LEDS void board_led_on(int led) { switch (led) { case 0: a1x_pio_write(PIO_LED1, true); a1x_pio_write(PIO_LED3, true); a1x_pio_write(PIO_LED4, true); break; case 1: a1x_pio_write(PIO_LED1, false); a1x_pio_write(PIO_LED3, false); a1x_pio_write(PIO_LED4, true); break; case 2: a1x_pio_write(PIO_LED1, false); a1x_pio_write(PIO_LED3, true); a1x_pio_write(PIO_LED4, true); break; case 3: a1x_pio_write(PIO_LED4, false); break; } } #endif /**************************************************************************** * Name: board_led_off * * Description: * Select the "logical" OFF state: * * SYMBOL Value Meaning LED state * LED1 LED3 LED4 * ----------------- ----- ----------------------- ---- ---- ------------ * LED_STARTED 0 NuttX has been started ON OFF OFF * LED_HEAPALLOCATE 1 Heap has been allocated OFF ON OFF * LED_IRQSENABLED 2 Interrupts enabled ON ON OFF * LED_STACKCREATED 2 Idle stack created ON ON OFF * LED_INIRQ 3 In an interrupt N/C N/C Soft glow * LED_SIGNAL 3 In a signal handler N/C N/C Soft glow * LED_ASSERTION 3 An assertion failed N/C N/C Soft glow * LED_PANIC 3 The system has crashed N/C N/C 2Hz Flashing * LED_IDLE --- MCU is is sleep mode Not used * * LED1 is illuminated by driving the output pins to a high value * LED3 and LED 4 are illuminated by taking the output to ground. * ****************************************************************************/ #ifdef CONFIG_ARCH_LEDS void board_led_off(int led) { switch (led) { case 0: case 1: case 2: break; case 3: a1x_pio_write(PIO_LED4, true); break; } } #endif /************************************************************************************ * Name: a1x_setled and a1x_setleds * * Description: * These interfaces allow user control of the board LEDs. * * If CONFIG_ARCH_LEDS is defined, then NuttX will control both on-board LEDs up * until the completion of boot. The it will continue to control LED2; LED1 is * avaiable for application use. * * If CONFIG_ARCH_LEDS is not defined, then both LEDs are available for application * use. * ************************************************************************************/ void a1x_setled(int led, bool ledon) { switch (led) { case BOARD_LED1: a1x_pio_write(PIO_LED1, ledon); break; case BOARD_LED3: a1x_pio_write(PIO_LED3, !ledon); break; #ifndef CONFIG_ARCH_LEDS case BOARD_LED4: a1x_pio_write(PIO_LED4, !ledon); break; #endif } } void a1x_setleds(uint8_t ledset) { a1x_setled(BOARD_LED1, (ledset & BOARD_LED1) != 0); a1x_setled(BOARD_LED3, (ledset & BOARD_LED3) != 0); #ifndef CONFIG_ARCH_LEDS a1x_setled(BOARD_LED4, (ledset & BOARD_LED4) != 0); #endif }