/****************************************************************************
* configs/open1788/src/lpc17_autoleds.c
* arch/arm/src/board/lpc17_autoleds.c
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <arch/board/board.h>
#include "chip.h"
#include "up_arch.h"
#include "up_internal.h"
#include "lpc17_gpio.h"
#include "open1788.h"
/****************************************************************************
* Definitions
****************************************************************************/
/* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
* any way. The following definitions are used to access individual LEDs.
*
* LED1 -- Connected to P1[14]
* LED2 -- Connected to P0[16]
* LED3 -- Connected to P1[13]
* LED4 -- Connected to P4[27]
*
* These LEDs are connecte to ground so a high output value will illuminate them.
*
* If CONFIG_ARCH_LEDs is defined, then NuttX will control the four LEDs
* on the WaveShare Open1788K. The following definitions describe how NuttX
* controls the LEDs:
*
* LED1 LED2 LED3 LED4
* LED_STARTED 0 OFF OFF OFF OFF
* LED_HEAPALLOCATE 1 ON OFF OFF OFF
* LED_IRQSENABLED 2 OFF ON OFF OFF
* LED_STACKCREATED 3 ON ON OFF OFF
* LED_INIRQ 4 LED3 glows, on while in interupt
* LED_SIGNAL 4 LED3 glows, on while in signal handler
* LED_ASSERTION 4 LED3 glows, on while in assertion
* LED_PANIC 4 LED3 Flashes at 2Hz
* LED_IDLE 5 LED glows, ON while sleeping
*/
/* The following definitions map the encoded LED setting to GPIO settings */
#define OPEN1788_LED1 (1 << 0)
#define OPEN1788_LED2 (1 << 1)
#define OPEN1788_LED3 (1 << 2)
#define OPEN1788_LED4 (1 << 3)
#define ON_SETBITS_SHIFT (0)
#define ON_CLRBITS_SHIFT (4)
#define OFF_SETBITS_SHIFT (8)
#define OFF_CLRBITS_SHIFT (12)
#define ON_BITS(v) ((v) & 0xff)
#define OFF_BITS(v) (((v) >> 8) & 0x0ff)
#define SETBITS(b) ((b) & 0x0f)
#define CLRBITS(b) (((b) >> 4) & 0x0f)
#define ON_SETBITS(v) (SETBITS(ON_BITS(v))
#define ON_CLRBITS(v) (CLRBITS(ON_BITS(v))
#define OFF_SETBITS(v) (SETBITS(OFF_BITS(v))
#define OFF_CLRBITS(v) (CLRBITS(OFF_BITS(v))
#define LED_STARTED_ON_SETBITS ((0) << ON_SETBITS_SHIFT)
#define LED_STARTED_ON_CLRBITS ((OPEN1788_LED1|OPEN1788_LED2|OPEN1788_LED3|OPEN1788_LED4) << ON_CLRBITS_SHIFT)
#define LED_STARTED_OFF_SETBITS (0 << OFF_SETBITS_SHIFT)
#define LED_STARTED_OFF_CLRBITS ((OPEN1788_LED1|OPEN1788_LED2|OPEN1788_LED3|OPEN1788_LED4) << OFF_CLRBITS_SHIFT)
#define LED_HEAPALLOCATE_ON_SETBITS ((OPEN1788_LED1) << ON_SETBITS_SHIFT)
#define LED_HEAPALLOCATE_ON_CLRBITS ((OPEN1788_LED2|OPEN1788_LED3|OPEN1788_LED4) << ON_CLRBITS_SHIFT)
#define LED_HEAPALLOCATE_OFF_SETBITS (0 << OFF_SETBITS_SHIFT)
#define LED_HEAPALLOCATE_OFF_CLRBITS ((OPEN1788_LED1|OPEN1788_LED2|OPEN1788_LED3|OPEN1788_LED4) << OFF_CLRBITS_SHIFT)
#define LED_IRQSENABLED_ON_SETBITS ((OPEN1788_LED2) << ON_SETBITS_SHIFT)
#define LED_IRQSENABLED_ON_CLRBITS ((OPEN1788_LED1|OPEN1788_LED3|OPEN1788_LED4) << ON_CLRBITS_SHIFT)
#define LED_IRQSENABLED_OFF_SETBITS ((OPEN1788_LED1) << OFF_SETBITS_SHIFT)
#define LED_IRQSENABLED_OFF_CLRBITS ((OPEN1788_LED2|OPEN1788_LED3|OPEN1788_LED4) << OFF_CLRBITS_SHIFT)
#define LED_STACKCREATED_ON_SETBITS ((OPEN1788_LED1|OPEN1788_LED2) << ON_SETBITS_SHIFT)
#define LED_STACKCREATED_ON_CLRBITS ((OPEN1788_LED3|OPEN1788_LED4) << ON_CLRBITS_SHIFT)
#define LED_STACKCREATED_OFF_SETBITS ((OPEN1788_LED2) << OFF_SETBITS_SHIFT)
#define LED_STACKCREATED_OFF_CLRBITS ((OPEN1788_LED1|OPEN1788_LED3|OPEN1788_LED4) << OFF_CLRBITS_SHIFT)
#define LED_EVENT_ON_SETBITS ((OPEN1788_LED3) << ON_SETBITS_SHIFT)
#define LED_EVENT_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT)
#define LED_EVENT_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT)
#define LED_EVENT_OFF_CLRBITS ((OPEN1788_LED3) << OFF_CLRBITS_SHIFT)
#define LED_IDLE_ON_SETBITS ((OPEN1788_LED4) << ON_SETBITS_SHIFT)
#define LED_IDLE_ON_CLRBITS ((0) << ON_CLRBITS_SHIFT)
#define LED_IDLE_OFF_SETBITS ((0) << OFF_SETBITS_SHIFT)
#define LED_IDLE_OFF_CLRBITS ((OPEN1788_LED4) << OFF_CLRBITS_SHIFT)
/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
* with CONFIG_DEBUG_VERBOSE too)
*/
#ifdef CONFIG_DEBUG_LEDS
# define leddbg lldbg
# ifdef CONFIG_DEBUG_VERBOSE
# define ledvdbg lldbg
# else
# define ledvdbg(x...)
# endif
#else
# define leddbg(x...)
# define ledvdbg(x...)
#endif
/* Dump GPIO registers */
#if defined(CONFIG_DEBUG_VERBOSE) && defined(CONFIG_DEBUG_LEDS)
# define led_dumpgpio(m) lpc17_dumpgpio(???, m)
#else
# define led_dumpgpio(m)
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
static const uint16_t g_ledbits[8] =
{
(LED_STARTED_ON_SETBITS | LED_STARTED_ON_CLRBITS |
LED_STARTED_OFF_SETBITS | LED_STARTED_OFF_CLRBITS),
(LED_HEAPALLOCATE_ON_SETBITS | LED_HEAPALLOCATE_ON_CLRBITS |
LED_HEAPALLOCATE_OFF_SETBITS | LED_HEAPALLOCATE_OFF_CLRBITS),
(LED_IRQSENABLED_ON_SETBITS | LED_IRQSENABLED_ON_CLRBITS |
LED_IRQSENABLED_OFF_SETBITS | LED_IRQSENABLED_OFF_CLRBITS),
(LED_STACKCREATED_ON_SETBITS | LED_STACKCREATED_ON_CLRBITS |
LED_STACKCREATED_OFF_SETBITS | LED_STACKCREATED_OFF_CLRBITS),
(LED_EVENT_ON_SETBITS | LED_EVENT_ON_CLRBITS |
LED_EVENT_OFF_SETBITS | LED_EVENT_OFF_CLRBITS),
(LED_IDLE_ON_SETBITS | LED_IDLE_ON_CLRBITS |
LED_IDLE_OFF_SETBITS | LED_IDLE_OFF_CLRBITS)
};
/****************************************************************************
* Private Functions
****************************************************************************/
static inline void led_clrbits(unsigned int clrbits)
{
if ((clrbits & OPEN1788_LED1) != 0)
{
lpc17_gpiowrite(GPIO_LED1, false);
}
if ((clrbits & OPEN1788_LED2) != 0)
{
lpc17_gpiowrite(GPIO_LED2, false);
}
if ((clrbits & OPEN1788_LED3) != 0)
{
lpc17_gpiowrite(GPIO_LED3, false);
}
if ((clrbits & OPEN1788_LED4) != 0)
{
lpc17_gpiowrite(GPIO_LED4, false);
}
}
static inline void led_setbits(unsigned int setbits)
{
if ((setbits & OPEN1788_LED1) != 0)
{
lpc17_gpiowrite(GPIO_LED1, true);
}
if ((setbits & OPEN1788_LED2) != 0)
{
lpc17_gpiowrite(GPIO_LED2, true);
}
if ((setbits & OPEN1788_LED3) != 0)
{
lpc17_gpiowrite(GPIO_LED3, true);
}
if ((setbits & OPEN1788_LED4) != 0)
{
lpc17_gpiowrite(GPIO_LED4, true);
}
}
static void led_setonoff(unsigned int bits)
{
led_clrbits(CLRBITS(bits));
led_setbits(SETBITS(bits));
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_ledinit
****************************************************************************/
void up_ledinit(void)
{
/* Configure LED1-4 GPIOs for output */
lpc17_configgpio(GPIO_LED1);
lpc17_configgpio(GPIO_LED2);
lpc17_configgpio(GPIO_LED3);
lpc17_configgpio(GPIO_LED4);
}
/****************************************************************************
* Name: up_ledon
****************************************************************************/
void up_ledon(int led)
{
led_setonoff(ON_BITS(g_ledbits[led]));
}
/****************************************************************************
* Name: up_ledoff
****************************************************************************/
void up_ledoff(int led)
{
led_setonoff(OFF_BITS(g_ledbits[led]));
}
