208 lines
4.9 KiB
C
208 lines
4.9 KiB
C
/**
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* \file
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*
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* \brief SAM Peripheral Digital-to-Analog Converter Driver
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*
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* Copyright (C) 2012-2016 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT 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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* \asf_license_stop
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*
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*/
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/*
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* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
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*/
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#ifndef DAC_H_INCLUDED
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#define DAC_H_INCLUDED
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <compiler.h>
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#include <clock.h>
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#include <gclk.h>
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/**
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* \addtogroup asfdoc_sam0_dac_group
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*
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* @{
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*/
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/**
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* Define DAC features set according to different device families.
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* @{
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*/
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#if (SAMD21 || SAMD10 || SAMD11 || SAMDA1 || SAMHA1)
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# define FEATURE_DAC_DATABUF_WRITE_PROTECTION
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#endif
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/**@}*/
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#ifndef DAC_TIMEOUT
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# define DAC_TIMEOUT 0xFFFF
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#endif
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#if DAC_CALLBACK_MODE == true
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# include <system_interrupt.h>
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/** Forward definition of the device instance. */
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struct dac_module;
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#if !defined(__DOXYGEN__)
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extern struct dac_module *_dac_instances[DAC_INST_NUM];
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#endif
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/** Type definition for a DAC module callback function. */
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typedef void (*dac_callback_t)(uint8_t channel);
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/** Enum for the possible callback types for the DAC module. */
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enum dac_callback {
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/** Callback type for when a DAC channel data empty condition occurs
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* (requires event triggered mode) */
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DAC_CALLBACK_DATA_EMPTY,
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/** Callback type for when a DAC channel data underrun condition occurs
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* (requires event triggered mode) */
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DAC_CALLBACK_DATA_UNDERRUN,
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/** Callback type for when a DAC channel write buffer job complete (requires
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* event triggered mode) */
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DAC_CALLBACK_TRANSFER_COMPLETE,
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#if !defined(__DOXYGEN__)
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DAC_CALLBACK_N,
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#endif
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};
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#endif
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#include <dac_feature.h>
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/**
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* \name Configuration and Initialization
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* @{
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*/
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bool dac_is_syncing(
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struct dac_module *const dev_inst);
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void dac_get_config_defaults(
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struct dac_config *const config);
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enum status_code dac_init(
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struct dac_module *const dev_inst,
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Dac *const module,
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struct dac_config *const config);
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void dac_reset(
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struct dac_module *const dev_inst);
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void dac_enable(
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struct dac_module *const dev_inst);
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void dac_disable(
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struct dac_module *const dev_inst);
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void dac_enable_events(
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struct dac_module *const module_inst,
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struct dac_events *const events);
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void dac_disable_events(
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struct dac_module *const module_inst,
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struct dac_events *const events);
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/** @} */
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/**
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* \name Configuration and Initialization (Channel)
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* @{
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*/
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void dac_chan_get_config_defaults(
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struct dac_chan_config *const config);
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void dac_chan_set_config(
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struct dac_module *const dev_inst,
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const enum dac_channel channel,
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struct dac_chan_config *const config);
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void dac_chan_enable(
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struct dac_module *const dev_inst,
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enum dac_channel channel);
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void dac_chan_disable(
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struct dac_module *const dev_inst,
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enum dac_channel channel);
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/** @} */
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/**
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* \name Channel Data Management
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* @{
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*/
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enum status_code dac_chan_write(
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struct dac_module *const dev_inst,
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enum dac_channel channel,
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const uint16_t data);
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enum status_code dac_chan_write_buffer_wait(
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struct dac_module *const module_inst,
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enum dac_channel channel,
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uint16_t *buffer,
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uint32_t length);
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/** @} */
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/**
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* \name Status Management
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* @{
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*/
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uint32_t dac_get_status(
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struct dac_module *const module_inst);
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void dac_clear_status(
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struct dac_module *const module_inst,
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uint32_t status_flags);
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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/** @} */
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#endif /* DAC_H_INCLUDED */
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