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115 lines
2.7 KiB
115 lines
2.7 KiB
/**************************************************************************** |
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* |
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* Copyright (C) 2012 PX4 Development Team. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name PX4 nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/** |
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* @file led.cpp |
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* |
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* LED driver. |
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*/ |
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#include <nuttx/config.h> |
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#include <drivers/device/device.h> |
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#include <drivers/drv_led.h> |
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/* Ideally we'd be able to get these from up_internal.h */ |
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//#include <up_internal.h> |
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__BEGIN_DECLS |
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extern void up_ledinit(); |
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extern void up_ledon(int led); |
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extern void up_ledoff(int led); |
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__END_DECLS |
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class LED : device::CDev |
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{ |
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public: |
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LED(); |
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~LED(); |
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virtual int init(); |
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virtual int ioctl(struct file *filp, int cmd, unsigned long arg); |
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}; |
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LED::LED() : |
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CDev("led", LED_DEVICE_PATH) |
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{ |
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// force immediate init/device registration |
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init(); |
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} |
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LED::~LED() |
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{ |
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} |
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int |
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LED::init() |
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{ |
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CDev::init(); |
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up_ledinit(); |
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return 0; |
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} |
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int |
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LED::ioctl(struct file *filp, int cmd, unsigned long arg) |
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{ |
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int result = OK; |
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switch (cmd) { |
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case LED_ON: |
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up_ledon(arg); |
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break; |
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case LED_OFF: |
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up_ledoff(arg); |
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break; |
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default: |
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result = CDev::ioctl(filp, cmd, arg); |
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} |
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return result; |
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} |
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namespace |
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{ |
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LED *gLED; |
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} |
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void |
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drv_led_start() |
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{ |
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if (gLED == nullptr) { |
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gLED = new LED; |
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if (gLED != nullptr) |
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gLED->init(); |
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} |
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} |