1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* Copyright (C) 2013--2024 Intel Corporation */ 3 4 #ifndef IPU6_ISYS_CSI2_H 5 #define IPU6_ISYS_CSI2_H 6 7 #include <linux/container_of.h> 8 9 #include "ipu6-isys-subdev.h" 10 #include "ipu6-isys-video.h" 11 12 struct media_entity; 13 struct v4l2_mbus_frame_desc_entry; 14 15 struct ipu6_isys_video; 16 struct ipu6_isys; 17 struct ipu6_isys_stream; 18 19 #define NR_OF_CSI2_VC 16 20 #define INVALID_VC_ID -1 21 #define NR_OF_CSI2_SINK_PADS 1 22 #define CSI2_PAD_SINK 0 23 #define NR_OF_CSI2_SRC_PADS 8 24 #define CSI2_PAD_SRC 1 25 #define NR_OF_CSI2_PADS (NR_OF_CSI2_SINK_PADS + NR_OF_CSI2_SRC_PADS) 26 27 #define CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_A 0 28 #define CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_B 0 29 #define CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_A 95 30 #define CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_B -8 31 32 #define CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_A 0 33 #define CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_B 0 34 #define CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_A 85 35 #define CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_B -2 36 37 struct ipu6_isys_csi2 { 38 struct ipu6_isys_subdev asd; 39 struct ipu6_isys *isys; 40 struct ipu6_isys_video av[NR_OF_CSI2_SRC_PADS]; 41 42 void __iomem *base; 43 u32 receiver_errors; 44 unsigned int nlanes; 45 unsigned int port; 46 }; 47 48 struct ipu6_isys_csi2_timing { 49 u32 ctermen; 50 u32 csettle; 51 u32 dtermen; 52 u32 dsettle; 53 }; 54 55 struct ipu6_csi2_error { 56 const char *error_string; 57 bool is_info_only; 58 }; 59 60 #define ipu6_isys_subdev_to_csi2(__sd) \ 61 container_of(__sd, struct ipu6_isys_csi2, asd) 62 63 #define to_ipu6_isys_csi2(__asd) container_of(__asd, struct ipu6_isys_csi2, asd) 64 65 s64 ipu6_isys_csi2_get_link_freq(struct ipu6_isys_csi2 *csi2); 66 int ipu6_isys_csi2_init(struct ipu6_isys_csi2 *csi2, struct ipu6_isys *isys, 67 void __iomem *base, unsigned int index); 68 void ipu6_isys_csi2_cleanup(struct ipu6_isys_csi2 *csi2); 69 void ipu6_isys_csi2_sof_event_by_stream(struct ipu6_isys_stream *stream); 70 void ipu6_isys_csi2_eof_event_by_stream(struct ipu6_isys_stream *stream); 71 void ipu6_isys_register_errors(struct ipu6_isys_csi2 *csi2); 72 void ipu6_isys_csi2_error(struct ipu6_isys_csi2 *csi2); 73 int ipu6_isys_csi2_get_remote_desc(u32 source_stream, 74 struct ipu6_isys_csi2 *csi2, 75 struct media_entity *source_entity, 76 struct v4l2_mbus_frame_desc_entry *entry); 77 78 #endif /* IPU6_ISYS_CSI2_H */ 79