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 */
xdmac_configure_transfer(Xdmac * xdmac,uint32_t channel_num,xdmac_channel_config_t * cfg)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 }