1 /** 2 * \file 3 * 4 * \brief SAM XDMA Controller (XDMAC) driver. 5 * 6 * Copyright (c) 2015 Atmel Corporation. All rights reserved. 7 * 8 * \asf_license_start 9 * 10 * \page License 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions are met: 14 * 15 * 1. Redistributions of source code must retain the above copyright notice, 16 * this list of conditions and the following disclaimer. 17 * 18 * 2. Redistributions in binary form must reproduce the above copyright notice, 19 * this list of conditions and the following disclaimer in the documentation 20 * and/or other materials provided with the distribution. 21 * 22 * 3. The name of Atmel may not be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * 4. This software may only be redistributed and used in connection with an 26 * Atmel microcontroller product. 27 * 28 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED 29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE 31 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR 32 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 * 40 * \asf_license_stop 41 * 42 */ 43 /* 44 * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a> 45 */ 46 47 #include "xdmac.h" 48 49 /** 50 * \brief Configure DMA for a transfer. 51 * 52 * \param[out] xdmac Module hardware register base address pointer. 53 * \param[in] channel_num The used channel number. 54 * \param[in] cfg The configuration for used channel 55 */ 56 void xdmac_configure_transfer(Xdmac *xdmac, 57 uint32_t channel_num, xdmac_channel_config_t *cfg) 58 { 59 Assert(xdmac); 60 Assert(channel_num < XDMACCHID_NUMBER); 61 Assert(cfg); 62 63 xdmac_channel_get_interrupt_status( xdmac, channel_num); 64 xdmac_channel_set_source_addr(xdmac, channel_num, cfg->mbr_sa); 65 xdmac_channel_set_destination_addr(xdmac, channel_num, cfg->mbr_da); 66 xdmac_channel_set_microblock_control(xdmac, channel_num, cfg->mbr_ubc); 67 xdmac_channel_set_block_control(xdmac, channel_num, cfg->mbr_bc); 68 xdmac_channel_set_datastride_mempattern(xdmac, channel_num, cfg->mbr_ds); 69 xdmac_channel_set_source_microblock_stride(xdmac, channel_num, cfg->mbr_sus); 70 xdmac_channel_set_destination_microblock_stride(xdmac, channel_num, cfg->mbr_dus); 71 xdmac_channel_set_config(xdmac, channel_num, cfg->mbr_cfg ); 72 }