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Add an upper half watchdog timer driver
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4604 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
@@ -2651,3 +2651,4 @@
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with OUT SETUP requests.
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* include/nuttx/watchdog.h: Add the definition of a standard watchdog
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driver interface.
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* drivers/watchdog.c: The "upper half" watchdog timer driver.
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@@ -43,19 +43,110 @@ config RAMLOG
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config CAN
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bool "CAN support"
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default n
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---help---
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This selection enables building of the "upper-half" CAN driver.
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See include/nuttx/can.h for further CAN driver information.
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if CAN
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config CONFIG_CAN_EXTID
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bool "CAN extended IDs"
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default n
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---help---
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Enables support for the 29-bit extended ID. Default Standard 11-bit IDs.
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config CONFIG_CAN_FIFOSIZE
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int "CAN driver I/O buffer size"
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default 8
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---help---
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The size of the circular buffer of CAN messages. Default: 8
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config CONFIG_CAN_NPENDINGRTR
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int "Number of pending RTRs"
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default 4
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---help---
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The size of the list of pending RTR requests. Default: 4
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config CONFIG_CAN_LOOPBACK
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bool "CAN extended IDs"
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default n
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---help---
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A CAN driver may or may not support a loopback mode for testing. If the
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driver does support loopback mode, the setting will enable it. (If the
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driver does not, this setting will have no effect).
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endif
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config PWM
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bool "PWM support"
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default n
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---help---
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This selection enables building of the "upper-half" PWM driver.
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See include/nuttx/pwm.h for further PWM driver information.
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if PWM
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config PWM_PULSECOUNT
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bool "PWM pulse count support"
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default n
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---help---
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Some hardware will support generation of a fixed number of pulses. This
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might be used, for example to support a stepper motor. If the hardware
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will support a fixed pulse count, then this configuration should be set to
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enable the capability.
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endif
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config I2C
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bool "I2C support"
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default y
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---help---
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This selection enables building of the "upper-half" I2C driver.
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See include/nuttx/i2c.h for further I2C driver information.
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if I2C
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endif
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config SPI
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bool "SPI support"
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default y
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---help---
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This selection enables building of the "upper-half" SPI driver.
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See include/nuttx/spi.h for further SPI driver information.
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if SPI
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config SPI_OWNBUS
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bool "SPI single device"
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default y
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---help---
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Set if there is only one active device on the SPI bus. No locking or SPI
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configuration will be performed. It is not necessary for clients to lock,
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re-configure, etc..
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config SPI_EXCHANGE
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bool "SPI exchange"
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default y
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---help---
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Driver supports a single exchange method (vs a recvblock() and sndblock ()methods).
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config SPI_CMDDATA
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bool "SPI CMD/DATA"
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default y
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---help---
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Devices on the SPI bus require out-of-band support to distinguish command
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transfers from data transfers. Such devices will often support either 9-bit
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SPI (yech) or 8-bit SPI and a GPIO output that selects between command and data.
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endif
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config WATCHDOG
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bool "Watchdog timer support"
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default y
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---help---
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This selection enables building of the "upper-half" watchdog timer driver.
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See include/nuttx/watchdog.h for further watchdog timer driver information.
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if WATCHDOG
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endif
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menuconfig ANALOG
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bool "Analog Device(adc,dac) support"
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default n
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@@ -82,6 +82,10 @@ endif
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ifeq ($(CONFIG_PWM),y)
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CSRCS += pwm.c
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endif
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ifeq ($(CONFIG_WATCHDOG),y)
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CSRCS += watchdog.c
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endif
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endif
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AOBJS = $(ASRCS:.S=$(OBJEXT))
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@@ -1,7 +1,7 @@
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/****************************************************************************
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* drivers/pwm.c
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*
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* Copyright (C) 2011 Gregory Nutt. All rights reserved.
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* Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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@@ -85,7 +85,7 @@
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* Private Type Definitions
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****************************************************************************/
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/* This structure describes the state of the upper half drivere */
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/* This structure describes the state of the upper half driver */
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struct pwm_upperhalf_s
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{
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572
drivers/watchdog.c
Normal file
572
drivers/watchdog.c
Normal file
File diff suppressed because it is too large
Load Diff
@@ -56,7 +56,7 @@
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*
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* WDIOC_START - Start the watchdog timer
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* Argument: Ignored
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* WDIOC_START - Stop the watchdog timer
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* WDIOC_STOP - Stop the watchdog timer
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* Argument: Ignored
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* WDIOC_GETSTATUS - Get the status of the watchdog timer.
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* Argument: A writeable pointer to struct watchdog_status_s.
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@@ -133,7 +133,7 @@ struct watchdog_ops_s
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/* Get the current watchdog timer status */
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CODE int (*getstatus)(FAR struct watchdog_lowerhalf_s *lower,
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FAR watchdog_state_s *status);
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FAR struct watchdog_status_s *status);
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/* Set a new timeout value (and reset the watchdog timer) */
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@@ -141,14 +141,14 @@ struct watchdog_ops_s
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uint32_t timeout);
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/* Don't reset on watchdog timer timeout; instead, call this user provider
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* timeout handler. NOTE: Providing handler==NULL will store the reset
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* timeout handler. NOTE: Providing handler==NULL will restore the reset
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* behavior.
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*/
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CODE xcpt_t (*capture)(FAR struct watchdog_lowerhalf_s *lower,
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xcpt_t handler);
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CODE xcpt_t handler);
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/* An ioctl commands that are not recognized by the "upper-half" driver
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/* Any ioctl commands that are not recognized by the "upper-half" driver
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* are forwarded to the lower half driver through this method.
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*/
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@@ -217,8 +217,8 @@ extern "C" {
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*
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****************************************************************************/
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FAR void *watchdog_register(FAR const char *path,
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FAR struct watchdog_lowerhalf_s *lower);
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EXTERN FAR void *watchdog_register(FAR const char *path,
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FAR struct watchdog_lowerhalf_s *lower);
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/****************************************************************************
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* Name: watchdog_unregister
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