1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* Copyright (C) 2013--2024 Intel Corporation */ 3 4 #ifndef IPU6_ISYS_QUEUE_H 5 #define IPU6_ISYS_QUEUE_H 6 7 #include <linux/container_of.h> 8 #include <linux/atomic.h> 9 #include <linux/device.h> 10 #include <linux/list.h> 11 #include <linux/spinlock_types.h> 12 13 #include <media/videobuf2-v4l2.h> 14 15 #include "ipu6-fw-isys.h" 16 #include "ipu6-isys-video.h" 17 18 struct ipu6_isys_stream; 19 20 struct ipu6_isys_queue { 21 struct vb2_queue vbq; 22 struct list_head node; 23 spinlock_t lock; /* Protects active and incoming lists */ 24 struct list_head active; 25 struct list_head incoming; 26 unsigned int fw_output; 27 }; 28 29 struct ipu6_isys_buffer { 30 struct list_head head; 31 atomic_t str2mmio_flag; 32 }; 33 34 struct ipu6_isys_video_buffer { 35 struct vb2_v4l2_buffer vb_v4l2; 36 struct ipu6_isys_buffer ib; 37 dma_addr_t dma_addr; 38 }; 39 40 #define IPU6_ISYS_BUFFER_LIST_FL_INCOMING BIT(0) 41 #define IPU6_ISYS_BUFFER_LIST_FL_ACTIVE BIT(1) 42 43 struct ipu6_isys_buffer_list { 44 struct list_head head; 45 unsigned int nbufs; 46 }; 47 48 #define vb2_queue_to_isys_queue(__vb2) \ 49 container_of(__vb2, struct ipu6_isys_queue, vbq) 50 51 #define ipu6_isys_to_isys_video_buffer(__ib) \ 52 container_of(__ib, struct ipu6_isys_video_buffer, ib) 53 54 #define vb2_buffer_to_ipu6_isys_video_buffer(__vvb) \ 55 container_of(__vvb, struct ipu6_isys_video_buffer, vb_v4l2) 56 57 #define ipu6_isys_buffer_to_vb2_buffer(__ib) \ 58 (&ipu6_isys_to_isys_video_buffer(__ib)->vb_v4l2.vb2_buf) 59 60 void ipu6_isys_buffer_list_queue(struct ipu6_isys_buffer_list *bl, 61 unsigned long op_flags, 62 enum vb2_buffer_state state); 63 void 64 ipu6_isys_buf_to_fw_frame_buf(struct ipu6_fw_isys_frame_buff_set_abi *set, 65 struct ipu6_isys_stream *stream, 66 struct ipu6_isys_buffer_list *bl); 67 void ipu6_isys_queue_buf_ready(struct ipu6_isys_stream *stream, 68 struct ipu6_fw_isys_resp_info_abi *info); 69 int ipu6_isys_queue_init(struct ipu6_isys_queue *aq); 70 #endif /* IPU6_ISYS_QUEUE_H */ 71