1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (c) 2019 MediaTek Inc.
4 */
5
6#ifndef _MTK_SCP_H
7#define _MTK_SCP_H
8
9#include <linux/platform_device.h>
10
11typedef void (*scp_ipi_handler_t) (void *data,
12				   unsigned int len,
13				   void *priv);
14struct mtk_scp;
15
16/**
17 * enum ipi_id - the id of inter-processor interrupt
18 *
19 * @SCP_IPI_INIT:	 The interrupt from scp is to notfiy kernel
20 *			 SCP initialization completed.
21 *			 IPI_SCP_INIT is sent from SCP when firmware is
22 *			 loaded. AP doesn't need to send IPI_SCP_INIT
23 *			 command to SCP.
24 *			 For other IPI below, AP should send the request
25 *			 to SCP to trigger the interrupt.
26 * @SCP_IPI_MAX:	 The maximum IPI number
27 */
28
29enum scp_ipi_id {
30	SCP_IPI_INIT = 0,
31	SCP_IPI_VDEC_H264,
32	SCP_IPI_VDEC_VP8,
33	SCP_IPI_VDEC_VP9,
34	SCP_IPI_VENC_H264,
35	SCP_IPI_VENC_VP8,
36	SCP_IPI_MDP_INIT,
37	SCP_IPI_MDP_DEINIT,
38	SCP_IPI_MDP_FRAME,
39	SCP_IPI_DIP,
40	SCP_IPI_ISP_CMD,
41	SCP_IPI_ISP_FRAME,
42	SCP_IPI_FD_CMD,
43	SCP_IPI_CROS_HOST_CMD,
44	SCP_IPI_VDEC_LAT,
45	SCP_IPI_VDEC_CORE,
46	SCP_IPI_NS_SERVICE = 0xFF,
47	SCP_IPI_MAX = 0x100,
48};
49
50struct mtk_scp *scp_get(struct platform_device *pdev);
51void scp_put(struct mtk_scp *scp);
52
53struct device *scp_get_device(struct mtk_scp *scp);
54struct rproc *scp_get_rproc(struct mtk_scp *scp);
55
56int scp_ipi_register(struct mtk_scp *scp, u32 id, scp_ipi_handler_t handler,
57		     void *priv);
58void scp_ipi_unregister(struct mtk_scp *scp, u32 id);
59
60int scp_ipi_send(struct mtk_scp *scp, u32 id, void *buf, unsigned int len,
61		 unsigned int wait);
62
63unsigned int scp_get_vdec_hw_capa(struct mtk_scp *scp);
64unsigned int scp_get_venc_hw_capa(struct mtk_scp *scp);
65
66void *scp_mapping_dm_addr(struct mtk_scp *scp, u32 mem_addr);
67
68#endif /* _MTK_SCP_H */
69