diff options
Diffstat (limited to 'platform/drivers/src/gpt.c')
-rw-r--r-- | platform/drivers/src/gpt.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/platform/drivers/src/gpt.c b/platform/drivers/src/gpt.c new file mode 100644 index 0000000..a9c8a21 --- /dev/null +++ b/platform/drivers/src/gpt.c @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2015, Freescale Semiconductor, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * o Redistributions of source code must retain the above copyright notice, this list + * of conditions and the following disclaimer. + * + * o 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. + * + * o Neither the name of Freescale Semiconductor, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 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. + */ + +#include "gpt.h" + +/******************************************************************************* + * Code + ******************************************************************************/ + +/*FUNCTION********************************************************************** + * + * Function Name : GPT_Init + * Description : Initialize GPT to reset state and initialize running mode + * + *END**************************************************************************/ +void GPT_Init(GPT_Type * base, gpt_mode_config_t *config) +{ + assert(config); + + base->CR = 0; + + GPT_SoftReset(base); + + base->CR = (config->freeRun ? GPT_CR_FRR_MASK : 0) | + (config->waitEnable ? GPT_CR_WAITEN_MASK : 0) | + (config->stopEnable ? GPT_CR_STOPEN_MASK : 0) | + (config->dozeEnable ? GPT_CR_DOZEEN_MASK : 0) | + (config->dbgEnable ? GPT_CR_DBGEN_MASK : 0) | + (config->enableMode ? GPT_CR_ENMOD_MASK : 0); +} + +/*FUNCTION********************************************************************** + * + * Function Name : GPT_SetClockSource + * Description : Set clock source of GPT + * + *END**************************************************************************/ +void GPT_SetClockSource(GPT_Type * base, uint32_t source) +{ + assert(source <= gptClockSourceOsc); + + if (source == gptClockSourceOsc) + base->CR = (base->CR & ~GPT_CR_CLKSRC_MASK) | GPT_CR_ENABLE_24MHZ_MASK | GPT_CR_CLKSRC(source); + else + base->CR = (base->CR & ~(GPT_CR_CLKSRC_MASK | GPT_CR_ENABLE_24MHZ_MASK)) | GPT_CR_CLKSRC(source); +} + +/*FUNCTION********************************************************************** + * + * Function Name : GPT_SetIntCmd + * Description : Enable or disable GPT interrupts + * + *END**************************************************************************/ +void GPT_SetIntCmd(GPT_Type * base, uint32_t flags, bool enable) +{ + if (enable) + base->IR |= flags; + else + base->IR &= ~flags; +} + +/******************************************************************************* + * EOF + ******************************************************************************/ |