1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * TI OMAP4 ISS V4L2 Driver - ISP IPIPEIF module 4 * 5 * Copyright (C) 2012 Texas Instruments, Inc. 6 * 7 * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com> 8 */ 9 10 #ifndef OMAP4_ISS_IPIPEIF_H 11 #define OMAP4_ISS_IPIPEIF_H 12 13 #include "iss_video.h" 14 15 enum ipipeif_input_entity { 16 IPIPEIF_INPUT_NONE, 17 IPIPEIF_INPUT_CSI2A, 18 IPIPEIF_INPUT_CSI2B 19 }; 20 21 #define IPIPEIF_OUTPUT_MEMORY BIT(0) 22 #define IPIPEIF_OUTPUT_VP BIT(1) 23 24 /* Sink and source IPIPEIF pads */ 25 #define IPIPEIF_PAD_SINK 0 26 #define IPIPEIF_PAD_SOURCE_ISIF_SF 1 27 #define IPIPEIF_PAD_SOURCE_VP 2 28 #define IPIPEIF_PADS_NUM 3 29 30 /* 31 * struct iss_ipipeif_device - Structure for the IPIPEIF module to store its own 32 * information 33 * @subdev: V4L2 subdevice 34 * @pads: Sink and source media entity pads 35 * @formats: Active video formats 36 * @input: Active input 37 * @output: Active outputs 38 * @video_out: Output video node 39 * @error: A hardware error occurred during capture 40 * @alaw: A-law compression enabled (1) or disabled (0) 41 * @lpf: Low pass filter enabled (1) or disabled (0) 42 * @obclamp: Optical-black clamp enabled (1) or disabled (0) 43 * @fpc_en: Faulty pixels correction enabled (1) or disabled (0) 44 * @blcomp: Black level compensation configuration 45 * @clamp: Optical-black or digital clamp configuration 46 * @fpc: Faulty pixels correction configuration 47 * @lsc: Lens shading compensation configuration 48 * @update: Bitmask of controls to update during the next interrupt 49 * @shadow_update: Controls update in progress by userspace 50 * @syncif: Interface synchronization configuration 51 * @vpcfg: Video port configuration 52 * @underrun: A buffer underrun occurred and a new buffer has been queued 53 * @state: Streaming state 54 * @lock: Serializes shadow_update with interrupt handler 55 * @wait: Wait queue used to stop the module 56 * @stopping: Stopping state 57 * @ioctl_lock: Serializes ioctl calls and LSC requests freeing 58 */ 59 struct iss_ipipeif_device { 60 struct v4l2_subdev subdev; 61 struct media_pad pads[IPIPEIF_PADS_NUM]; 62 struct v4l2_mbus_framefmt formats[IPIPEIF_PADS_NUM]; 63 64 enum ipipeif_input_entity input; 65 unsigned int output; 66 struct iss_video video_out; 67 unsigned int error; 68 69 enum iss_pipeline_stream_state state; 70 wait_queue_head_t wait; 71 atomic_t stopping; 72 }; 73 74 struct iss_device; 75 76 int omap4iss_ipipeif_init(struct iss_device *iss); 77 int omap4iss_ipipeif_create_links(struct iss_device *iss); 78 void omap4iss_ipipeif_cleanup(struct iss_device *iss); 79 int omap4iss_ipipeif_register_entities(struct iss_ipipeif_device *ipipeif, 80 struct v4l2_device *vdev); 81 void omap4iss_ipipeif_unregister_entities(struct iss_ipipeif_device *ipipeif); 82 83 int omap4iss_ipipeif_busy(struct iss_ipipeif_device *ipipeif); 84 void omap4iss_ipipeif_isr(struct iss_ipipeif_device *ipipeif, u32 events); 85 void omap4iss_ipipeif_restore_context(struct iss_device *iss); 86 void omap4iss_ipipeif_max_rate(struct iss_ipipeif_device *ipipeif, 87 unsigned int *max_rate); 88 89 #endif /* OMAP4_ISS_IPIPEIF_H */ 90