diff options
Diffstat (limited to 'include/linux/soc/ti/ti-udma.h')
| -rw-r--r-- | include/linux/soc/ti/ti-udma.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/linux/soc/ti/ti-udma.h b/include/linux/soc/ti/ti-udma.h new file mode 100644 index 00000000000..89faf69242f --- /dev/null +++ b/include/linux/soc/ti/ti-udma.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com + * Author: Peter Ujfalusi <peter.ujfalusi@ti.com> + */ + +#ifndef __TI_UDMA_H +#define __TI_UDMA_H + +/** + * struct ti_udma_drv_packet_data - TI UDMA transfer specific data + * + * @pkt_type: Packet Type - specific for each DMA client HW + * @dest_tag: Destination tag The source pointer. + * + * TI UDMA transfer specific data passed as part of DMA transfer to + * the DMA client HW in UDMA descriptors. + */ +struct ti_udma_drv_packet_data { + u32 pkt_type; + u32 dest_tag; +}; + +/** + * struct ti_udma_drv_chan_cfg_data - TI UDMA per channel specific + * configuration data + * + * @flow_id_base: Start index of flow ID allocated to this channel + * @flow_id_cnt: Number of flows allocated for this channel starting at + * flow_id_base + * + * TI UDMA channel specific data returned as part of dma_get_cfg() call + * from the DMA client driver. + */ +struct ti_udma_drv_chan_cfg_data { + u32 flow_id_base; + u32 flow_id_cnt; +}; + +/* TI UDMA specific flag IDs for dma_get_cfg() call */ +#define TI_UDMA_CHAN_PRIV_INFO 0 + +#endif /* __TI_UDMA_H */ |