Mouse code for the MacroRat
mbed-dev/targets/TARGET_Atmel/TARGET_SAM_CortexM0P/drivers/system/system.c
- Committer:
- sahilmgandhi
- Date:
- 2017-06-03
- Revision:
- 46:b156ef445742
- Parent:
- 18:6a4db94011d3
File content as of revision 46:b156ef445742:
/** * \file * * \brief SAM System related functionality * * Copyright (C) 2012-2015 Atmel Corporation. All rights reserved. * * \asf_license_start * * \page License * * 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. The name of Atmel may not be used to endorse or promote products derived * from this software without specific prior written permission. * * 4. This software may only be redistributed and used in connection with an * Atmel microcontroller product. * * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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. * * \asf_license_stop * */ /* * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a> */ #include <system.h> #include <toolchain.h> /** * \internal * Dummy initialization function, used as a weak alias target for the various * init functions called by \ref system_init(). */ void _system_dummy_init(void); void _system_dummy_init(void) { return; } #if !defined(__DOXYGEN__) # if defined(__GNUC__) void system_clock_init(void) WEAK __attribute__((alias("_system_dummy_init"))); void system_board_init(void) WEAK __attribute__((alias("_system_dummy_init"))); void _system_events_init(void) WEAK __attribute__((alias("_system_dummy_init"))); void _system_extint_init(void) WEAK __attribute__((alias("_system_dummy_init"))); void _system_divas_init(void) WEAK __attribute__((alias("_system_dummy_init"))); # elif defined(__ICCARM__) void system_clock_init(void); void system_board_init(void); void _system_events_init(void); void _system_extint_init(void); void _system_divas_init(void); # pragma weak system_clock_init=_system_dummy_init # pragma weak system_board_init=_system_dummy_init # pragma weak _system_events_init=_system_dummy_init # pragma weak _system_extint_init=_system_dummy_init # pragma weak _system_divas_init=_system_dummy_init # endif #endif /** * \brief Initialize system * * This function will call the various initialization functions within the * system namespace. If a given optional system module is not available, the * associated call will effectively be a NOP (No Operation). * * Currently the following initialization functions are supported: * - System clock initialization (via the SYSTEM CLOCK sub-module) * - Board hardware initialization (via the Board module) * - Event system driver initialization (via the EVSYS module) * - External Interrupt driver initialization (via the EXTINT module) */ void system_init(void) { /* Configure GCLK and clock sources according to conf_clocks.h */ system_clock_init(); /* Initialize board hardware */ system_board_init(); /* Initialize EVSYS hardware */ _system_events_init(); /* Initialize External hardware */ _system_extint_init(); /* Initialize DIVAS hardware */ _system_divas_init(); }