Mouse code for the MacroRat
mbed-dev/targets/TARGET_Atmel/TARGET_SAM_CortexM4/drivers/flexcom/flexcom.c
- Committer:
- sahilmgandhi
- Date:
- 2017-06-03
- Revision:
- 46:b156ef445742
- Parent:
- 18:6a4db94011d3
File content as of revision 46:b156ef445742:
/** * \file * * \brief FLEXCOM driver for SAM. * * Copyright (c) 2014-2015 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 "flexcom.h" #include "sysclk.h" #include "sleepmgr.h" /// @cond 0 /**INDENT-OFF**/ #ifdef __cplusplus extern "C" { #endif /**INDENT-ON**/ /// @endcond /** * \brief Enable the FLEXCOM module. * * \param p_flexcom Pointer to a FLEXCOM instance. * */ void flexcom_enable(Flexcom *p_flexcom) { sleepmgr_lock_mode(SLEEPMGR_ACTIVE); /* Enable PMC clock for FLEXCOM */ #ifdef ID_FLEXCOM7 if (p_flexcom == FLEXCOM7) { sysclk_enable_peripheral_clock(ID_FLEXCOM7); /* Enable PCK output */ pmc_disable_pck(PMC_PCK_7); pmc_switch_pck_to_mck(PMC_PCK_7, PMC_PCK_PRES_CLK_1); pmc_enable_pck(PMC_PCK_7); } else #endif #ifdef ID_FLEXCOM6 if (p_flexcom == FLEXCOM6) { sysclk_enable_peripheral_clock(ID_FLEXCOM6); /* Enable PCK output */ pmc_disable_pck(PMC_PCK_7); pmc_switch_pck_to_mck(PMC_PCK_7, PMC_PCK_PRES_CLK_1); pmc_enable_pck(PMC_PCK_7); } else #endif #ifdef ID_FLEXCOM5 if (p_flexcom == FLEXCOM5) { sysclk_enable_peripheral_clock(ID_FLEXCOM5); /* Enable PCK output */ pmc_disable_pck(PMC_PCK_7); pmc_switch_pck_to_mck(PMC_PCK_7, PMC_PCK_PRES_CLK_1); pmc_enable_pck(PMC_PCK_7); } else #endif #ifdef ID_FLEXCOM4 if (p_flexcom == FLEXCOM4) { sysclk_enable_peripheral_clock(ID_FLEXCOM4); /* Enable PCK output */ pmc_disable_pck(PMC_PCK_7); pmc_switch_pck_to_mck(PMC_PCK_7, PMC_PCK_PRES_CLK_1); pmc_enable_pck(PMC_PCK_7); } else #endif #ifdef ID_FLEXCOM3 if (p_flexcom == FLEXCOM3) { sysclk_enable_peripheral_clock(ID_FLEXCOM3); /* Enable PCK output */ pmc_disable_pck(PMC_PCK_6); pmc_switch_pck_to_mck(PMC_PCK_6, PMC_PCK_PRES_CLK_1); pmc_enable_pck(PMC_PCK_6); } else #endif #ifdef ID_FLEXCOM2 if (p_flexcom == FLEXCOM2) { sysclk_enable_peripheral_clock(ID_FLEXCOM2); /* Enable PCK output */ pmc_disable_pck(PMC_PCK_6); pmc_switch_pck_to_mck(PMC_PCK_6, PMC_PCK_PRES_CLK_1); pmc_enable_pck(PMC_PCK_6); } else #endif #ifdef ID_FLEXCOM1 if (p_flexcom == FLEXCOM1) { sysclk_enable_peripheral_clock(ID_FLEXCOM1); /* Enable PCK output */ pmc_disable_pck(PMC_PCK_6); pmc_switch_pck_to_mck(PMC_PCK_6, PMC_PCK_PRES_CLK_1); pmc_enable_pck(PMC_PCK_6); } else #endif #ifdef ID_FLEXCOM0 if (p_flexcom == FLEXCOM0) { sysclk_enable_peripheral_clock(ID_FLEXCOM0); /* Enable PCK output */ pmc_disable_pck(PMC_PCK_6); pmc_switch_pck_to_mck(PMC_PCK_6, PMC_PCK_PRES_CLK_1); pmc_enable_pck(PMC_PCK_6); } else #endif { Assert(false); } } /** * \brief Disable the FLEXCOM module. * * \param p_flexcom Pointer to a FLEXCOM instance. * */ void flexcom_disable(Flexcom *p_flexcom) { sleepmgr_unlock_mode(SLEEPMGR_ACTIVE); /* Enable PMC clock for FLEXCOM */ #ifdef ID_FLEXCOM7 if (p_flexcom == FLEXCOM7) { sysclk_disable_peripheral_clock(ID_FLEXCOM7); /* Disable PCK output */ pmc_disable_pck(PMC_PCK_7); } else #endif #ifdef ID_FLEXCOM6 if (p_flexcom == FLEXCOM6) { sysclk_disable_peripheral_clock(ID_FLEXCOM6); /* Disable PCK output */ pmc_disable_pck(PMC_PCK_7); } else #endif #ifdef ID_FLEXCOM5 if (p_flexcom == FLEXCOM5) { sysclk_disable_peripheral_clock(ID_FLEXCOM5); /* Disable PCK output */ pmc_disable_pck(PMC_PCK_7); } else #endif #ifdef ID_FLEXCOM4 if (p_flexcom == FLEXCOM4) { sysclk_disable_peripheral_clock(ID_FLEXCOM4); /* Disable PCK output */ pmc_disable_pck(PMC_PCK_7); } else #endif #ifdef ID_FLEXCOM3 if (p_flexcom == FLEXCOM3) { sysclk_disable_peripheral_clock(ID_FLEXCOM3); /* Disable PCK output */ pmc_disable_pck(PMC_PCK_6); } else #endif #ifdef ID_FLEXCOM2 if (p_flexcom == FLEXCOM2) { sysclk_disable_peripheral_clock(ID_FLEXCOM2); /* Disable PCK output */ pmc_disable_pck(PMC_PCK_6); } else #endif #ifdef ID_FLEXCOM1 if (p_flexcom == FLEXCOM1) { sysclk_disable_peripheral_clock(ID_FLEXCOM1); /* Disable PCK output */ pmc_disable_pck(PMC_PCK_6); } else #endif #ifdef ID_FLEXCOM0 if (p_flexcom == FLEXCOM0) { /* Disable PCK output */ pmc_disable_pck(PMC_PCK_6); sysclk_disable_peripheral_clock(ID_FLEXCOM0); } else #endif { Assert(false); } } /** * \brief Set the FLEXCOM opration mode. * * \param p_flexcom Pointer to a FLEXCOM instance. * \param opmode Opration mode. * */ void flexcom_set_opmode(Flexcom *p_flexcom, enum flexcom_opmode opmode) { p_flexcom->FLEXCOM_MR = opmode; } /** * \brief Set the FLEXCOM opration mode. * * \param p_flexcom Pointer to a FLEXCOM instance. * \param opmode Opration mode. * */ void flexcom_get_opmode(Flexcom *p_flexcom, enum flexcom_opmode *opmode) { *opmode = (enum flexcom_opmode)(p_flexcom->FLEXCOM_MR & FLEXCOM_MR_OPMODE_Msk); } /** * \brief Write to the FLEXCOM. * * \param p_flexcom Pointer to a FLEXCOM instance. * \param data Data to be tansfer. * */ void flexcom_write(Flexcom *p_flexcom, uint32_t data) { p_flexcom->FLEXCOM_THR = data; } /** * \brief Read the FLEXCOM data. * * \param p_flexcom Pointer to a FLEXCOM instance. * \param data Data received. * */ void flexcom_read(Flexcom *p_flexcom, uint32_t *data) { *data = p_flexcom->FLEXCOM_RHR; } /// @cond 0 /**INDENT-OFF**/ #ifdef __cplusplus } #endif /**INDENT-ON**/ /// @endcond