256 lines
6.6 KiB
C
256 lines
6.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* camss-vfe.h
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*
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* Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module
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*
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* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
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* Copyright (C) 2015-2018 Linaro Ltd.
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*/
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#ifndef QC_MSM_CAMSS_VFE_H
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#define QC_MSM_CAMSS_VFE_H
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#include <linux/clk.h>
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#include <linux/spinlock_types.h>
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#include <media/media-entity.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-subdev.h>
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#include "camss-video.h"
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#include "camss-vfe-gen1.h"
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#define MSM_VFE_PAD_SINK 0
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#define MSM_VFE_PAD_SRC 1
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#define MSM_VFE_PADS_NUM 2
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#define MSM_VFE_IMAGE_MASTERS_NUM 7
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#define MSM_VFE_COMPOSITE_IRQ_NUM 4
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/* VFE halt timeout */
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#define VFE_HALT_TIMEOUT_MS 100
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/* Frame drop value. VAL + UPDATES - 1 should not exceed 31 */
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#define VFE_FRAME_DROP_VAL 30
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#define vfe_line_array(ptr_line) \
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((const struct vfe_line (*)[]) &(ptr_line)[-(ptr_line)->id])
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#define to_vfe(ptr_line) \
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container_of(vfe_line_array(ptr_line), struct vfe_device, line)
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enum vfe_output_state {
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VFE_OUTPUT_OFF,
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VFE_OUTPUT_RESERVED,
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VFE_OUTPUT_SINGLE,
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VFE_OUTPUT_CONTINUOUS,
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VFE_OUTPUT_IDLE,
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VFE_OUTPUT_STOPPING,
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VFE_OUTPUT_ON,
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};
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enum vfe_line_id {
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VFE_LINE_NONE = -1,
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VFE_LINE_RDI0 = 0,
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VFE_LINE_RDI1 = 1,
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VFE_LINE_RDI2 = 2,
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VFE_LINE_PIX = 3,
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VFE_LINE_NUM_MAX = 4
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};
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struct vfe_output {
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u8 wm_num;
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u8 wm_idx[3];
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struct camss_buffer *buf[2];
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struct camss_buffer *last_buffer;
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struct list_head pending_bufs;
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unsigned int drop_update_idx;
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union {
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struct {
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int active_buf;
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int wait_sof;
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} gen1;
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struct {
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int active_num;
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} gen2;
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};
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enum vfe_output_state state;
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unsigned int sequence;
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int wait_reg_update;
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struct completion sof;
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struct completion reg_update;
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};
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struct vfe_line {
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enum vfe_line_id id;
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struct v4l2_subdev subdev;
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struct media_pad pads[MSM_VFE_PADS_NUM];
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struct v4l2_mbus_framefmt fmt[MSM_VFE_PADS_NUM];
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struct v4l2_rect compose;
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struct v4l2_rect crop;
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struct camss_video video_out;
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struct vfe_output output;
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const struct camss_format_info *formats;
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unsigned int nformats;
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};
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struct vfe_device;
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struct vfe_hw_ops {
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void (*enable_irq_common)(struct vfe_device *vfe);
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void (*global_reset)(struct vfe_device *vfe);
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u32 (*hw_version)(struct vfe_device *vfe);
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irqreturn_t (*isr)(int irq, void *dev);
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void (*isr_read)(struct vfe_device *vfe, u32 *value0, u32 *value1);
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void (*pm_domain_off)(struct vfe_device *vfe);
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int (*pm_domain_on)(struct vfe_device *vfe);
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void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id);
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void (*reg_update_clear)(struct vfe_device *vfe,
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enum vfe_line_id line_id);
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void (*subdev_init)(struct device *dev, struct vfe_device *vfe);
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int (*vfe_disable)(struct vfe_line *line);
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int (*vfe_enable)(struct vfe_line *line);
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int (*vfe_halt)(struct vfe_device *vfe);
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void (*violation_read)(struct vfe_device *vfe);
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void (*vfe_wm_stop)(struct vfe_device *vfe, u8 wm);
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};
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struct vfe_isr_ops {
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void (*reset_ack)(struct vfe_device *vfe);
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void (*halt_ack)(struct vfe_device *vfe);
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void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id);
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void (*sof)(struct vfe_device *vfe, enum vfe_line_id line_id);
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void (*comp_done)(struct vfe_device *vfe, u8 comp);
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void (*wm_done)(struct vfe_device *vfe, u8 wm);
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};
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struct vfe_subdev_resources {
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bool is_lite;
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u8 line_num;
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bool has_pd;
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char *pd_name;
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const struct vfe_hw_ops *hw_ops;
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const struct camss_formats *formats_rdi;
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const struct camss_formats *formats_pix;
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};
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struct vfe_device {
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struct camss *camss;
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u8 id;
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void __iomem *base;
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u32 irq;
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char irq_name[30];
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struct camss_clock *clock;
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int nclocks;
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struct completion reset_complete;
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struct completion halt_complete;
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struct mutex power_lock;
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int power_count;
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struct mutex stream_lock;
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int stream_count;
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spinlock_t output_lock;
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enum vfe_line_id wm_output_map[MSM_VFE_IMAGE_MASTERS_NUM];
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struct vfe_line line[VFE_LINE_NUM_MAX];
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u32 reg_update;
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u8 was_streaming;
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const struct vfe_subdev_resources *res;
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const struct vfe_hw_ops_gen1 *ops_gen1;
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struct vfe_isr_ops isr_ops;
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struct camss_video_ops video_ops;
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struct device *genpd;
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struct device_link *genpd_link;
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};
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struct camss_subdev_resources;
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int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
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const struct camss_subdev_resources *res, u8 id);
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void msm_vfe_genpd_cleanup(struct vfe_device *vfe);
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int msm_vfe_register_entities(struct vfe_device *vfe,
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struct v4l2_device *v4l2_dev);
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void msm_vfe_unregister_entities(struct vfe_device *vfe);
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/*
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* vfe_buf_add_pending - Add output buffer to list of pending
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* @output: VFE output
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* @buffer: Video buffer
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*/
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void vfe_buf_add_pending(struct vfe_output *output, struct camss_buffer *buffer);
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struct camss_buffer *vfe_buf_get_pending(struct vfe_output *output);
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int vfe_flush_buffers(struct camss_video *vid, enum vb2_buffer_state state);
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/*
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* vfe_isr_comp_done - Process composite image done interrupt
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* @vfe: VFE Device
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* @comp: Composite image id
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*/
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void vfe_isr_comp_done(struct vfe_device *vfe, u8 comp);
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void vfe_isr_reset_ack(struct vfe_device *vfe);
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int vfe_put_output(struct vfe_line *line);
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int vfe_release_wm(struct vfe_device *vfe, u8 wm);
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int vfe_reserve_wm(struct vfe_device *vfe, enum vfe_line_id line_id);
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/*
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* vfe_reset - Trigger reset on VFE module and wait to complete
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* @vfe: VFE device
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*
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* Return 0 on success or a negative error code otherwise
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*/
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int vfe_reset(struct vfe_device *vfe);
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/*
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* vfe_disable - Disable streaming on VFE line
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* @line: VFE line
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*
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* Return 0 on success or a negative error code otherwise
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*/
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int vfe_disable(struct vfe_line *line);
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/*
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* vfe_pm_domain_off - Disable power domains specific to this VFE.
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* @vfe: VFE Device
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*/
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void vfe_pm_domain_off(struct vfe_device *vfe);
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/*
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* vfe_pm_domain_on - Enable power domains specific to this VFE.
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* @vfe: VFE Device
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*/
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int vfe_pm_domain_on(struct vfe_device *vfe);
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extern const struct camss_formats vfe_formats_rdi_8x16;
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extern const struct camss_formats vfe_formats_pix_8x16;
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extern const struct camss_formats vfe_formats_rdi_8x96;
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extern const struct camss_formats vfe_formats_pix_8x96;
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extern const struct camss_formats vfe_formats_rdi_845;
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extern const struct camss_formats vfe_formats_pix_845;
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extern const struct vfe_hw_ops vfe_ops_4_1;
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extern const struct vfe_hw_ops vfe_ops_4_7;
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extern const struct vfe_hw_ops vfe_ops_4_8;
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extern const struct vfe_hw_ops vfe_ops_170;
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extern const struct vfe_hw_ops vfe_ops_480;
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int vfe_get(struct vfe_device *vfe);
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void vfe_put(struct vfe_device *vfe);
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/*
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* vfe_is_lite - Return if VFE is VFE lite.
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* @vfe: VFE Device
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*
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* Some VFE lites have a different register layout.
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*
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* Return whether VFE is VFE lite
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*/
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bool vfe_is_lite(struct vfe_device *vfe);
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#endif /* QC_MSM_CAMSS_VFE_H */
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