1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  *  Copyright (C) 2019 Texas Instruments Incorporated - https://www.ti.com
4  */
5 
6 #ifndef K3_PSIL_H_
7 #define K3_PSIL_H_
8 
9 #include <linux/types.h>
10 
11 #define K3_PSIL_DST_THREAD_ID_OFFSET 0x8000
12 
13 struct device;
14 
15 /**
16  * enum udma_tp_level - Channel Throughput Levels
17  * @UDMA_TP_NORMAL:	Normal channel
18  * @UDMA_TP_HIGH:	High Throughput channel
19  * @UDMA_TP_ULTRAHIGH:	Ultra High Throughput channel
20  */
21 enum udma_tp_level {
22 	UDMA_TP_NORMAL = 0,
23 	UDMA_TP_HIGH,
24 	UDMA_TP_ULTRAHIGH,
25 	UDMA_TP_LAST,
26 };
27 
28 /**
29  * enum psil_endpoint_type - PSI-L Endpoint type
30  * @PSIL_EP_NATIVE:	Normal channel
31  * @PSIL_EP_PDMA_XY:	XY mode PDMA
32  * @PSIL_EP_PDMA_MCAN:	MCAN mode PDMA
33  * @PSIL_EP_PDMA_AASRC: AASRC mode PDMA
34  */
35 enum psil_endpoint_type {
36 	PSIL_EP_NATIVE = 0,
37 	PSIL_EP_PDMA_XY,
38 	PSIL_EP_PDMA_MCAN,
39 	PSIL_EP_PDMA_AASRC,
40 };
41 
42 /**
43  * struct psil_endpoint_config - PSI-L Endpoint configuration
44  * @ep_type:		PSI-L endpoint type
45  * @channel_tpl:	Desired throughput level for the channel
46  * @pkt_mode:		If set, the channel must be in Packet mode, otherwise in
47  *			TR mode
48  * @notdpkt:		TDCM must be suppressed on the TX channel
49  * @needs_epib:		Endpoint needs EPIB
50  * @pdma_acc32:		ACC32 must be enabled on the PDMA side
51  * @pdma_burst:		BURST must be enabled on the PDMA side
52  * @psd_size:		If set, PSdata is used by the endpoint
53  * @mapped_channel_id:	PKTDMA thread to channel mapping for mapped channels.
54  *			The thread must be serviced by the specified channel if
55  *			mapped_channel_id is >= 0 in case of PKTDMA
56  * @flow_start:		PKDMA flow range start of mapped channel. Unmapped
57  *			channels use flow_id == chan_id
58  * @flow_num:		PKDMA flow count of mapped channel. Unmapped channels
59  *			use flow_id == chan_id
60  * @default_flow_id:	PKDMA default (r)flow index of mapped channel.
61  *			Must be within the flow range of the mapped channel.
62  */
63 struct psil_endpoint_config {
64 	enum psil_endpoint_type ep_type;
65 	enum udma_tp_level channel_tpl;
66 
67 	unsigned pkt_mode:1;
68 	unsigned notdpkt:1;
69 	unsigned needs_epib:1;
70 	/* PDMA properties, valid for PSIL_EP_PDMA_* */
71 	unsigned pdma_acc32:1;
72 	unsigned pdma_burst:1;
73 
74 	u32 psd_size;
75 	/* PKDMA mapped channel */
76 	s16 mapped_channel_id;
77 	/* PKTDMA tflow and rflow ranges for mapped channel */
78 	u16 flow_start;
79 	u16 flow_num;
80 	s16 default_flow_id;
81 };
82 
83 int psil_set_new_ep_config(struct device *dev, const char *name,
84 			   struct psil_endpoint_config *ep_config);
85 
86 #endif /* K3_PSIL_H_ */
87