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Add serial and LED driver

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2519 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-01-22 03:08:29 +00:00
parent aad061cb12
commit 72e2e850a6
4 changed files with 107 additions and 19 deletions
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24
configs/sam3u-ek/include/board.h
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@ -86,23 +86,15 @@
/* LED definitions ******************************************************************/
#define LED_STARTED 0
#define LED_HEAPALLOCATE 1
#define LED_IRQSENABLED 2
#define LED_STACKCREATED 3
#define LED_INIRQ 4
#define LED_SIGNAL 5
#define LED_ASSERTION 6
#define LED_PANIC 7
#define LED_STARTED 0 /* LED0=OFF LED1=OFF LED2=OFF */
#define LED_HEAPALLOCATE 1 /* LED0=OFF LED1=OFF LED2=ON */
#define LED_IRQSENABLED 2 /* LED0=OFF LED1=ON LED2=OFF */
#define LED_STACKCREATED 3 /* LED0=OFF LED1=ON LED2=ON */
/* GPIO pin definitions *************************************************************/
#define GPIO_LED0 (GPIO_OUTPUT|GPIO_CFG_DEFAULT|GPIO_PORT_PIOB|GPIO_OUTPUT_CLEAR|GPIO_PIN0)
#define GPIO_LED1 (GPIO_OUTPUT|GPIO_CFG_DEFAULT|GPIO_PORT_PIOB|GPIO_OUTPUT_SET|GPIO_PIN1)
#define GPIO_LED2 (GPIO_OUTPUT|GPIO_CFG_DEFAULT|GPIO_PORT_PIOB|GPIO_OUTPUT_SET|GPIO_PIN2)
#define GPIO_BUTTON1 (GPIO_INPUT|GPIO_CFG_PULLUP|GPIO_CFG_DEGLITCH|GPIO_PORT_PIOA|GPIO_PIN18)
#define GPIO_BUTTON2 (GPIO_INPUT|GPIO_CFG_PULLUP|GPIO_CFG_DEGLITCH|GPIO_PORT_PIOA|GPIO_PIN19)
#define LED_INIRQ 4 /* LED0=OFF LED1=TOG LED2=XXX */
#define LED_SIGNAL 5 /* LED0=OFF LED1=XXX LED2=TOG */
#define LED_ASSERTION 6 /* LED0=TOG LED1=XXX LED2=XXX */
#define LED_PANIC 7 /* LED0=TOG LED1=XXX LED2=XXX*/
/************************************************************************************
* Public Data

2
configs/sam3u-ek/ostest/defconfig
View File

@ -100,7 +100,7 @@ CONFIG_SAM3U_BUILDROOT=y
#
# Individual subsystems can be enabled:
#
CONFIG_SAM3U_USART=y
CONFIG_SAM3U_UART=y
CONFIG_SAM3U_USART0=n
CONFIG_SAM3U_USART1=n
CONFIG_SAM3U_USART2=n

9
configs/sam3u-ek/src/sam3uek_internal.h
View File

@ -51,10 +51,19 @@
/* SAM3U-EK GPIOs *******************************************************************/
/* GPIO pin definitions *************************************************************/
/* LEDs */
#define GPIO_LED0 (GPIO_OUTPUT|GPIO_CFG_DEFAULT|GPIO_PORT_PIOB|GPIO_OUTPUT_CLEAR|GPIO_PIN0)
#define GPIO_LED1 (GPIO_OUTPUT|GPIO_CFG_DEFAULT|GPIO_PORT_PIOB|GPIO_OUTPUT_SET|GPIO_PIN1)
#define GPIO_LED2 (GPIO_OUTPUT|GPIO_CFG_DEFAULT|GPIO_PORT_PIOB|GPIO_OUTPUT_SET|GPIO_PIN2)
/* BUTTONS */
#define GPIO_BUTTON1 (GPIO_INPUT|GPIO_CFG_PULLUP|GPIO_CFG_DEGLITCH|GPIO_PORT_PIOA|GPIO_PIN18)
#define GPIO_BUTTON2 (GPIO_INPUT|GPIO_CFG_PULLUP|GPIO_CFG_DEGLITCH|GPIO_PORT_PIOA|GPIO_PIN19)
/* SPI Chip Selects */
/************************************************************************************

91
configs/sam3u-ek/src/up_leds.c
View File

@ -2,7 +2,7 @@
* configs/sam3u-ek/src/up_leds.c
* arch/arm/src/board/up_leds.c
*
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
@ -52,6 +52,8 @@
#include "sam3u_internal.h"
#include "sam3uek_internal.h"
#ifdef CONFIG_ARCH_LEDS
/****************************************************************************
* Definitions
****************************************************************************/
@ -70,14 +72,95 @@
# define ledvdbg(x...)
#endif
#define LED_OFF 0
#define LED_ON 1
#define LED_NOCHANGE 2
#define LED_MASK 3
#define LED0_SHIFT 0
#define LED0_OFF (LED_OFF << LED0_SHIFT)
#define LED0_ON (LED_ON << LED0_SHIFT)
#define LED0_NOCHANGE (LED_NOCHANGE << LED0_SHIFT)
#define LED1_SHIFT 2
#define LED1_OFF (LED_OFF << LED1_SHIFT)
#define LED1_ON (LED_ON << LED1_SHIFT)
#define LED1_NOCHANGE (LED_NOCHANGE << LED1_SHIFT)
#define LED2_SHIFT 4
#define LED2_OFF (LED_OFF << LED2_SHIFT)
#define LED2_ON (LED_ON << LED2_SHIFT)
#define LED2_NOCHANGE (LED_NOCHANGE << LED2_SHIFT)
/****************************************************************************
* Private Data
****************************************************************************/
static const uint8_t g_ledon[8] =
{
(LED0_OFF |LED1_OFF |LED2_OFF), /* LED_STARTED */
(LED0_ON |LED1_OFF |LED2_ON), /* LED_HEAPALLOCATE */
(LED0_OFF |LED1_ON |LED2_OFF), /* LED_IRQSENABLED */
(LED0_ON |LED1_ON |LED2_ON), /* LED_STACKCREATED */
(LED0_OFF |LED1_OFF |LED2_NOCHANGE), /* LED_INIRQ */
(LED0_OFF |LED1_NOCHANGE|LED2_OFF), /* LED_SIGNAL */
(LED0_ON |LED1_NOCHANGE|LED2_NOCHANGE), /* LED_ASSERTION */
(LED0_ON |LED1_NOCHANGE|LED2_NOCHANGE) /* LED_PANIC */
};
static const uint8_t g_ledoff[8] =
{
(LED0_OFF |LED1_OFF |LED2_OFF), /* LED_STARTED (does not happen) */
(LED0_ON |LED1_OFF |LED2_ON), /* LED_HEAPALLOCATE (does not happen) */
(LED0_OFF |LED1_ON |LED2_OFF), /* LED_IRQSENABLED (does not happen) */
(LED0_ON |LED1_ON |LED2_ON), /* LED_STACKCREATED (does not happen) */
(LED0_OFF |LED1_ON |LED2_NOCHANGE), /* LED_INIRQ */
(LED0_OFF |LED1_NOCHANGE|LED2_ON), /* LED_SIGNAL */
(LED0_OFF |LED1_NOCHANGE|LED2_NOCHANGE), /* LED_ASSERTION */
(LED0_OFF |LED1_NOCHANGE|LED2_NOCHANGE) /* LED_PANIC */
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: up_setled
****************************************************************************/
static void up_setled(uint16_t pinset, uint8_t state)
{
/* Assume active high. Initial state == 0 means active high */
bool polarity = ((pinset & GPIO_OUTPUT_SET) == 0);
switch (state)
{
case LED_OFF:
polarity = !polarity;
case LED_ON:
break;
case LED_NOCHANGE:
default:
return;
}
sam3u_gpiowrite(pinset, polarity);
}
/****************************************************************************
* Name: up_setleds
****************************************************************************/
static void up_setleds(uint8_t state)
{
up_setled(GPIO_LED0, (state >> LED0_SHIFT) & LED_MASK);
up_setled(GPIO_LED1, (state >> LED1_SHIFT) & LED_MASK);
up_setled(GPIO_LED2, (state >> LED2_SHIFT) & LED_MASK);
}
/****************************************************************************
* Public Functions
****************************************************************************/
@ -86,9 +169,11 @@
* Name: up_ledinit
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void up_ledinit(void)
{
(void)sam3u_configgpio(GPIO_LED0);
(void)sam3u_configgpio(GPIO_LED1);
(void)sam3u_configgpio(GPIO_LED2);
}
/****************************************************************************
@ -97,6 +182,7 @@ void up_ledinit(void)
void up_ledon(int led)
{
up_setleds(g_ledon[led & 7]);
}
/****************************************************************************
@ -105,6 +191,7 @@ void up_ledon(int led)
void up_ledoff(int led)
{
up_setleds(g_ledoff[led & 7]);
}
#endif /* CONFIG_ARCH_LEDS */