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 11 typedef void (*scp_ipi_handler_t) (void *data, 12 unsigned int len, 13 void *priv); 14 struct 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 29 enum 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_NS_SERVICE = 0xFF, 45 SCP_IPI_MAX = 0x100, 46 }; 47 48 struct mtk_scp *scp_get(struct platform_device *pdev); 49 void scp_put(struct mtk_scp *scp); 50 51 struct device *scp_get_device(struct mtk_scp *scp); 52 struct rproc *scp_get_rproc(struct mtk_scp *scp); 53 54 int scp_ipi_register(struct mtk_scp *scp, u32 id, scp_ipi_handler_t handler, 55 void *priv); 56 void scp_ipi_unregister(struct mtk_scp *scp, u32 id); 57 58 int scp_ipi_send(struct mtk_scp *scp, u32 id, void *buf, unsigned int len, 59 unsigned int wait); 60 61 unsigned int scp_get_vdec_hw_capa(struct mtk_scp *scp); 62 unsigned int scp_get_venc_hw_capa(struct mtk_scp *scp); 63 64 void *scp_mapping_dm_addr(struct mtk_scp *scp, u32 mem_addr); 65 66 #endif /* _MTK_SCP_H */ 67