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174 lines
4.7 KiB
174 lines
4.7 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* ispccdc.h |
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* |
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* TI OMAP3 ISP - CCDC module |
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* |
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* Copyright (C) 2009-2010 Nokia Corporation |
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* Copyright (C) 2009 Texas Instruments, Inc. |
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* |
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* Contacts: Laurent Pinchart <[email protected]> |
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* Sakari Ailus <[email protected]> |
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*/ |
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#ifndef OMAP3_ISP_CCDC_H |
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#define OMAP3_ISP_CCDC_H |
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#include <linux/omap3isp.h> |
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#include <linux/workqueue.h> |
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#include "ispvideo.h" |
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enum ccdc_input_entity { |
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CCDC_INPUT_NONE, |
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CCDC_INPUT_PARALLEL, |
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CCDC_INPUT_CSI2A, |
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CCDC_INPUT_CCP2B, |
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CCDC_INPUT_CSI2C |
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}; |
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#define CCDC_OUTPUT_MEMORY (1 << 0) |
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#define CCDC_OUTPUT_PREVIEW (1 << 1) |
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#define CCDC_OUTPUT_RESIZER (1 << 2) |
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#define OMAP3ISP_CCDC_NEVENTS 16 |
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struct ispccdc_fpc { |
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void *addr; |
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dma_addr_t dma; |
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unsigned int fpnum; |
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}; |
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enum ispccdc_lsc_state { |
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LSC_STATE_STOPPED = 0, |
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LSC_STATE_STOPPING = 1, |
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LSC_STATE_RUNNING = 2, |
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LSC_STATE_RECONFIG = 3, |
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}; |
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struct ispccdc_lsc_config_req { |
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struct list_head list; |
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struct omap3isp_ccdc_lsc_config config; |
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unsigned char enable; |
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struct { |
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void *addr; |
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dma_addr_t dma; |
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struct sg_table sgt; |
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} table; |
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}; |
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/* |
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* ispccdc_lsc - CCDC LSC parameters |
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*/ |
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struct ispccdc_lsc { |
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enum ispccdc_lsc_state state; |
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struct work_struct table_work; |
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/* LSC queue of configurations */ |
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spinlock_t req_lock; |
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struct ispccdc_lsc_config_req *request; /* requested configuration */ |
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struct ispccdc_lsc_config_req *active; /* active configuration */ |
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struct list_head free_queue; /* configurations for freeing */ |
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}; |
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#define CCDC_STOP_NOT_REQUESTED 0x00 |
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#define CCDC_STOP_REQUEST 0x01 |
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#define CCDC_STOP_EXECUTED (0x02 | CCDC_STOP_REQUEST) |
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#define CCDC_STOP_CCDC_FINISHED 0x04 |
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#define CCDC_STOP_LSC_FINISHED 0x08 |
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#define CCDC_STOP_FINISHED \ |
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(CCDC_STOP_EXECUTED | CCDC_STOP_CCDC_FINISHED | CCDC_STOP_LSC_FINISHED) |
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#define CCDC_EVENT_VD1 0x10 |
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#define CCDC_EVENT_VD0 0x20 |
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#define CCDC_EVENT_LSC_DONE 0x40 |
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/* Sink and source CCDC pads */ |
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#define CCDC_PAD_SINK 0 |
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#define CCDC_PAD_SOURCE_OF 1 |
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#define CCDC_PAD_SOURCE_VP 2 |
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#define CCDC_PADS_NUM 3 |
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#define CCDC_FIELD_TOP 1 |
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#define CCDC_FIELD_BOTTOM 2 |
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#define CCDC_FIELD_BOTH 3 |
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/* |
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* struct isp_ccdc_device - Structure for the CCDC module to store its own |
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* information |
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* @subdev: V4L2 subdevice |
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* @pads: Sink and source media entity pads |
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* @formats: Active video formats |
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* @crop: Active crop rectangle on the OF source pad |
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* @input: Active input |
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* @output: Active outputs |
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* @video_out: Output video node |
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* @alaw: A-law compression enabled (1) or disabled (0) |
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* @lpf: Low pass filter enabled (1) or disabled (0) |
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* @obclamp: Optical-black clamp enabled (1) or disabled (0) |
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* @fpc_en: Faulty pixels correction enabled (1) or disabled (0) |
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* @blcomp: Black level compensation configuration |
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* @clamp: Optical-black or digital clamp configuration |
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* @fpc: Faulty pixels correction configuration |
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* @lsc: Lens shading compensation configuration |
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* @update: Bitmask of controls to update during the next interrupt |
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* @shadow_update: Controls update in progress by userspace |
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* @bt656: Whether the input interface uses BT.656 synchronization |
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* @fields: The fields (CCDC_FIELD_*) stored in the current buffer |
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* @underrun: A buffer underrun occurred and a new buffer has been queued |
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* @state: Streaming state |
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* @lock: Serializes shadow_update with interrupt handler |
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* @wait: Wait queue used to stop the module |
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* @stopping: Stopping state |
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* @running: Is the CCDC hardware running |
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* @ioctl_lock: Serializes ioctl calls and LSC requests freeing |
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*/ |
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struct isp_ccdc_device { |
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struct v4l2_subdev subdev; |
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struct media_pad pads[CCDC_PADS_NUM]; |
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struct v4l2_mbus_framefmt formats[CCDC_PADS_NUM]; |
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struct v4l2_rect crop; |
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enum ccdc_input_entity input; |
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unsigned int output; |
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struct isp_video video_out; |
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unsigned int alaw:1, |
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lpf:1, |
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obclamp:1, |
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fpc_en:1; |
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struct omap3isp_ccdc_blcomp blcomp; |
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struct omap3isp_ccdc_bclamp clamp; |
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struct ispccdc_fpc fpc; |
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struct ispccdc_lsc lsc; |
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unsigned int update; |
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unsigned int shadow_update; |
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bool bt656; |
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unsigned int fields; |
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unsigned int underrun:1; |
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enum isp_pipeline_stream_state state; |
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spinlock_t lock; |
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wait_queue_head_t wait; |
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unsigned int stopping; |
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bool running; |
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struct mutex ioctl_lock; |
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}; |
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struct isp_device; |
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int omap3isp_ccdc_init(struct isp_device *isp); |
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void omap3isp_ccdc_cleanup(struct isp_device *isp); |
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int omap3isp_ccdc_register_entities(struct isp_ccdc_device *ccdc, |
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struct v4l2_device *vdev); |
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void omap3isp_ccdc_unregister_entities(struct isp_ccdc_device *ccdc); |
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int omap3isp_ccdc_busy(struct isp_ccdc_device *isp_ccdc); |
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int omap3isp_ccdc_isr(struct isp_ccdc_device *isp_ccdc, u32 events); |
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void omap3isp_ccdc_restore_context(struct isp_device *isp); |
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void omap3isp_ccdc_max_rate(struct isp_ccdc_device *ccdc, |
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unsigned int *max_rate); |
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#endif /* OMAP3_ISP_CCDC_H */
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