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The UDMA-P is intended to perform similar (but significantly upgraded) functions as the packet-oriented DMA used on previous SoC devices. The UDMA-P module supports the transmission and reception of various packet types. The UDMA-P also supports acting as both a UTC and UDMA-C for its internal channels. Channels in the UDMA-P can be configured to be either Packet-Based or Third-Party channels on a channel by channel basis. The initial driver supports: - MEM_TO_MEM (TR mode) - DEV_TO_MEM (Packet mode) - MEM_TO_DEV (Packet mode) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com>
25 lines
606 B
C
25 lines
606 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com
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* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
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*/
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#ifndef __TI_UDMA_H
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#define __TI_UDMA_H
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/**
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* struct ti_udma_drv_packet_data - TI UDMA transfer specific data
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*
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* @pkt_type: Packet Type - specific for each DMA client HW
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* @dest_tag: Destination tag The source pointer.
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*
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* TI UDMA transfer specific data passed as part of DMA transfer to
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* the DMA client HW in UDMA descriptors.
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*/
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struct ti_udma_drv_packet_data {
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u32 pkt_type;
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u32 dest_tag;
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};
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#endif /* __TI_UDMA_H */
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