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board/arm/lpc17xx_40xx/mbed: Add userleds driver support

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lpc17_40_userleds.c: Adds the support of Userleds driver which
provides a device to manipulate the 4 leds of the board through the
/dev/userleds.

lpc17_40_leds.c: Removes not used definitions, eg. MBED_LED3_ON.

Board LED Status support(CONFIG_ARCH_LED=y) and Device Drivers/Led
Support(CONFIG_ARCH_USERLED=y) can not be enable together.

Signed-off-by: Gustavo L F Walbon <gwalbon@linux.ibm.com>
This commit is contained in:
Gustavo L F Walbon 2021-03-25 21:35:06 -03:00 committed by Xiang Xiao
parent c6c36e1e65
commit a6e963a965
6 changed files with 272 additions and 17 deletions
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7
boards/arm/lpc17xx_40xx/mbed/README.txt
View File

@ -70,8 +70,6 @@ mbed Configuration Options
CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to board architecture.
Individual subsystems can be enabled:
CONFIG_LPC17_40_MAINOSC=y
CONFIG_LPC17_40_PLL0=y
@ -196,6 +194,11 @@ mbed Configuration Options
application can guarantee that all end-user I/O buffers
reside in AHB SRAM.
CONFIG_USERLED
CONFIG_USERLED_LOWER
Setup the generic driver to support the board leds, and so creates the
device into /dev/userleds
USB Host Configuration
^^^^^^^^^^^^^^^^^^^^^^

10
boards/arm/lpc17xx_40xx/mbed/src/Makefile
View File

@ -20,7 +20,11 @@
include $(TOPDIR)/Make.defs
CSRCS = lpc17_40_boot.c lpc17_40_leds.c lpc17_40_dac.c
CSRCS = lpc17_40_boot.c lpc17_40_dac.c
ifeq ($(CONFIG_ARCH_LEDS),y)
CSRCS += lpc17_40_leds.c
endif
ifeq ($(CONFIG_LIB_BOARDCTL),y)
CSRCS += lpc17_40_appinit.c
@ -38,4 +42,8 @@ ifeq ($(CONFIG_ADC),y)
CSRCS += lpc17_40_adc.c
endif
ifeq ($(CONFIG_USERLED),y)
CSRCS += lpc17_40_userleds.c
endif
include $(TOPDIR)/boards/Board.mk

14
boards/arm/lpc17xx_40xx/mbed/src/lpc17_40_appinit.c
View File

@ -34,6 +34,10 @@
#include "mbed.h"
#ifdef CONFIG_USERLED
#include <nuttx/leds/userled.h>
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
@ -106,6 +110,16 @@ int board_app_initialize(uintptr_t arg)
}
#endif
#ifdef CONFIG_USERLED
/* Register the LED driver */
ret = userled_lower_initialize("/dev/userleds");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
}
#endif
UNUSED(ret);
return OK;
}

2
boards/arm/lpc17xx_40xx/mbed/src/lpc17_40_leds.c
View File

@ -79,7 +79,7 @@
*/
static bool g_initialized;
static int g_nestcount;
static int g_nestcount = 0;
/****************************************************************************
* Private Functions

231
boards/arm/lpc17xx_40xx/mbed/src/lpc17_40_userleds.c Normal file
View File

@ -0,0 +1,231 @@
/****************************************************************************
* boards/arm/lpc17xx_40xx/mbed/src/lpc17_40_userleds.c
*
* Copyright (C) 2011, 2015-2016 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 <nuttx/board.h>
#include <nuttx/power/pm.h>
#include <arch/board/board.h>
#include "chip.h"
#include "arm_arch.h"
#include "arm_internal.h"
#include "lpc17_40_gpio.h"
#include "mbed.h"
#ifndef CONFIG_ARCH_LEDS
/****************************************************************************
* Private Data
****************************************************************************/
/* This array maps an LED number to GPIO pin configuration */
static uint32_t g_ledcfg[MBED_NLEDS] =
{
MBED_LED1, MBED_LED2, MBED_LED3, MBED_LED4
};
/****************************************************************************
* Private Function Protototypes
****************************************************************************/
/* LED Power Management */
#ifdef CONFIG_PM
static void led_pm_notify(struct pm_callback_s *cb, int domain,
enum pm_state_e pmstate);
static int led_pm_prepare(struct pm_callback_s *cb, int domain,
enum pm_state_e pmstate);
#endif
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef CONFIG_PM
static struct pm_callback_s g_ledscb =
{
.notify = led_pm_notify,
.prepare = led_pm_prepare,
};
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: led_pm_notify
*
* Description:
* Notify the driver of new power state. This callback is called after
* all drivers have had the opportunity to prepare for the new power state.
*
****************************************************************************/
#ifdef CONFIG_PM
static void led_pm_notify(struct pm_callback_s *cb, int domain,
enum pm_state_e pmstate)
{
switch (pmstate)
{
case(PM_NORMAL):
{
/* Restore normal LEDs operation */
}
break;
case(PM_IDLE):
{
/* Entering IDLE mode - Turn leds off */
}
break;
case(PM_STANDBY):
{
/* Entering STANDBY mode - Logic for PM_STANDBY goes here */
}
break;
case(PM_SLEEP):
{
/* Entering SLEEP mode - Logic for PM_SLEEP goes here */
}
break;
default:
{
/* Should not get here */
}
break;
}
}
#endif
/****************************************************************************
* Name: led_pm_prepare
*
* Description:
* Request the driver to prepare for a new power state. This is a warning
* that the system is about to enter into a new power state. The driver
* should begin whatever operations that may be required to enter power
* state. The driver may abort the state change mode by returning a
* non-zero value from the callback function.
*
****************************************************************************/
#ifdef CONFIG_PM
static int led_pm_prepare(struct pm_callback_s *cb, int domain,
enum pm_state_e pmstate)
{
/* No preparation to change power modes is required by the LEDs driver.
* We always accept the state change by returning OK.
*/
return OK;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_userled_initialize
****************************************************************************/
uint32_t board_userled_initialize(void)
{
/* Configure LED1-4 GPIOs for output */
lpc17_40_configgpio(MBED_LED1);
lpc17_40_configgpio(MBED_LED2);
lpc17_40_configgpio(MBED_LED3);
lpc17_40_configgpio(MBED_LED4);
return MBED_NLEDS;
}
/****************************************************************************
* Name: board_userled
****************************************************************************/
void board_userled(int led, bool ledon)
{
if ((unsigned)led < MBED_NLEDS)
{
lpc17_40_gpiowrite(g_ledcfg[led], ledon);
}
}
/****************************************************************************
* Name: board_userled_all
****************************************************************************/
void board_userled_all(uint32_t ledset)
{
lpc17_40_gpiowrite(MBED_LED1, (ledset & MBED_LED1_BIT) == 0);
lpc17_40_gpiowrite(MBED_LED2, (ledset & MBED_LED2_BIT) == 0);
lpc17_40_gpiowrite(MBED_LED3, (ledset & MBED_LED3_BIT) == 0);
lpc17_40_gpiowrite(MBED_LED4, (ledset & MBED_LED4_BIT) == 0);
}
/****************************************************************************
* Name: lpc17_40_led_pminitialize
****************************************************************************/
#ifdef CONFIG_PM
void lpc17_40_led_pminitialize(void)
{
/* Register to receive power management callbacks */
int ret = pm_register(&g_ledscb);
if (ret != OK)
{
board_autoled_on(LED_ASSERTION);
}
}
#endif /* CONFIG_PM */
#endif /* !CONFIG_ARCH_LEDS */

25
boards/arm/lpc17xx_40xx/mbed/src/mbed.h
View File

@ -34,20 +34,19 @@
/* MBED GPIO Pin Definitions ************************************************/
#define MBED_LED1 (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN18)
#define MBED_LED1_OFF MBED_LED1
#define MBED_LED1_ON (MBED_LED1 | GPIO_VALUE_ONE)
#define MBED_LED2 (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN20)
#define MBED_LED2_OFF MBED_LED2
#define MBED_LED2_ON (MBED_LED2 | GPIO_VALUE_ONE)
#define MBED_LED3 (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN21)
#define MBED_LED3_OFF MBED_LED3
#define MBED_LED3_ON (MBED_LED3 | GPIO_VALUE_ONE)
#define MBED_LED4 (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN23)
#define MBED_LED4_OFF MBED_LED4
#define MBED_LED4_ON (MBED_LED 4| GPIO_VALUE_ONE)
#define MBED_LED1 (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN18)
#define MBED_LED2 (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN20)
#define MBED_LED3 (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN21)
#define MBED_LED4 (GPIO_OUTPUT | GPIO_PORT1 | GPIO_PIN23)
#define MBED_HEARTBEAT MBED_LED4
#define MBED_HEARTBEAT MBED_LED4
/* LED bits for use with board_userled_all() */
#define MBED_NLEDS 4
#define MBED_LED1_BIT (1 << 0)
#define MBED_LED2_BIT (1 << 1)
#define MBED_LED3_BIT (1 << 2)
#define MBED_LED4_BIT (1 << 3)
/****************************************************************************
* Public Types