root/drivers/media/platform/qcom/camss/camss-vfe.h

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INCLUDED FROM


   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * camss-vfe.h
   4  *
   5  * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module
   6  *
   7  * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
   8  * Copyright (C) 2015-2018 Linaro Ltd.
   9  */
  10 #ifndef QC_MSM_CAMSS_VFE_H
  11 #define QC_MSM_CAMSS_VFE_H
  12 
  13 #include <linux/clk.h>
  14 #include <linux/spinlock_types.h>
  15 #include <media/media-entity.h>
  16 #include <media/v4l2-device.h>
  17 #include <media/v4l2-subdev.h>
  18 
  19 #include "camss-video.h"
  20 
  21 #define MSM_VFE_PAD_SINK 0
  22 #define MSM_VFE_PAD_SRC 1
  23 #define MSM_VFE_PADS_NUM 2
  24 
  25 #define MSM_VFE_LINE_NUM 4
  26 #define MSM_VFE_IMAGE_MASTERS_NUM 7
  27 #define MSM_VFE_COMPOSITE_IRQ_NUM 4
  28 
  29 enum vfe_output_state {
  30         VFE_OUTPUT_OFF,
  31         VFE_OUTPUT_RESERVED,
  32         VFE_OUTPUT_SINGLE,
  33         VFE_OUTPUT_CONTINUOUS,
  34         VFE_OUTPUT_IDLE,
  35         VFE_OUTPUT_STOPPING
  36 };
  37 
  38 enum vfe_line_id {
  39         VFE_LINE_NONE = -1,
  40         VFE_LINE_RDI0 = 0,
  41         VFE_LINE_RDI1 = 1,
  42         VFE_LINE_RDI2 = 2,
  43         VFE_LINE_PIX = 3
  44 };
  45 
  46 struct vfe_output {
  47         u8 wm_num;
  48         u8 wm_idx[3];
  49 
  50         int active_buf;
  51         struct camss_buffer *buf[2];
  52         struct camss_buffer *last_buffer;
  53         struct list_head pending_bufs;
  54 
  55         unsigned int drop_update_idx;
  56 
  57         enum vfe_output_state state;
  58         unsigned int sequence;
  59         int wait_sof;
  60         int wait_reg_update;
  61         struct completion sof;
  62         struct completion reg_update;
  63 };
  64 
  65 struct vfe_line {
  66         enum vfe_line_id id;
  67         struct v4l2_subdev subdev;
  68         struct media_pad pads[MSM_VFE_PADS_NUM];
  69         struct v4l2_mbus_framefmt fmt[MSM_VFE_PADS_NUM];
  70         struct v4l2_rect compose;
  71         struct v4l2_rect crop;
  72         struct camss_video video_out;
  73         struct vfe_output output;
  74         const struct vfe_format *formats;
  75         unsigned int nformats;
  76 };
  77 
  78 struct vfe_device;
  79 
  80 struct vfe_hw_ops {
  81         void (*hw_version_read)(struct vfe_device *vfe, struct device *dev);
  82         u16 (*get_ub_size)(u8 vfe_id);
  83         void (*global_reset)(struct vfe_device *vfe);
  84         void (*halt_request)(struct vfe_device *vfe);
  85         void (*halt_clear)(struct vfe_device *vfe);
  86         void (*wm_enable)(struct vfe_device *vfe, u8 wm, u8 enable);
  87         void (*wm_frame_based)(struct vfe_device *vfe, u8 wm, u8 enable);
  88         void (*wm_line_based)(struct vfe_device *vfe, u32 wm,
  89                               struct v4l2_pix_format_mplane *pix,
  90                               u8 plane, u32 enable);
  91         void (*wm_set_framedrop_period)(struct vfe_device *vfe, u8 wm, u8 per);
  92         void (*wm_set_framedrop_pattern)(struct vfe_device *vfe, u8 wm,
  93                                          u32 pattern);
  94         void (*wm_set_ub_cfg)(struct vfe_device *vfe, u8 wm, u16 offset,
  95                               u16 depth);
  96         void (*bus_reload_wm)(struct vfe_device *vfe, u8 wm);
  97         void (*wm_set_ping_addr)(struct vfe_device *vfe, u8 wm, u32 addr);
  98         void (*wm_set_pong_addr)(struct vfe_device *vfe, u8 wm, u32 addr);
  99         int (*wm_get_ping_pong_status)(struct vfe_device *vfe, u8 wm);
 100         void (*bus_enable_wr_if)(struct vfe_device *vfe, u8 enable);
 101         void (*bus_connect_wm_to_rdi)(struct vfe_device *vfe, u8 wm,
 102                                       enum vfe_line_id id);
 103         void (*wm_set_subsample)(struct vfe_device *vfe, u8 wm);
 104         void (*bus_disconnect_wm_from_rdi)(struct vfe_device *vfe, u8 wm,
 105                                            enum vfe_line_id id);
 106         void (*set_xbar_cfg)(struct vfe_device *vfe, struct vfe_output *output,
 107                              u8 enable);
 108         void (*set_rdi_cid)(struct vfe_device *vfe, enum vfe_line_id id,
 109                             u8 cid);
 110         void (*set_realign_cfg)(struct vfe_device *vfe, struct vfe_line *line,
 111                                 u8 enable);
 112         void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id);
 113         void (*reg_update_clear)(struct vfe_device *vfe,
 114                                  enum vfe_line_id line_id);
 115         void (*enable_irq_wm_line)(struct vfe_device *vfe, u8 wm,
 116                                    enum vfe_line_id line_id, u8 enable);
 117         void (*enable_irq_pix_line)(struct vfe_device *vfe, u8 comp,
 118                                     enum vfe_line_id line_id, u8 enable);
 119         void (*enable_irq_common)(struct vfe_device *vfe);
 120         void (*set_demux_cfg)(struct vfe_device *vfe, struct vfe_line *line);
 121         void (*set_scale_cfg)(struct vfe_device *vfe, struct vfe_line *line);
 122         void (*set_crop_cfg)(struct vfe_device *vfe, struct vfe_line *line);
 123         void (*set_clamp_cfg)(struct vfe_device *vfe);
 124         void (*set_qos)(struct vfe_device *vfe);
 125         void (*set_ds)(struct vfe_device *vfe);
 126         void (*set_cgc_override)(struct vfe_device *vfe, u8 wm, u8 enable);
 127         void (*set_camif_cfg)(struct vfe_device *vfe, struct vfe_line *line);
 128         void (*set_camif_cmd)(struct vfe_device *vfe, u8 enable);
 129         void (*set_module_cfg)(struct vfe_device *vfe, u8 enable);
 130         int (*camif_wait_for_stop)(struct vfe_device *vfe, struct device *dev);
 131         void (*isr_read)(struct vfe_device *vfe, u32 *value0, u32 *value1);
 132         void (*violation_read)(struct vfe_device *vfe);
 133         irqreturn_t (*isr)(int irq, void *dev);
 134 };
 135 
 136 struct vfe_isr_ops {
 137         void (*reset_ack)(struct vfe_device *vfe);
 138         void (*halt_ack)(struct vfe_device *vfe);
 139         void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id);
 140         void (*sof)(struct vfe_device *vfe, enum vfe_line_id line_id);
 141         void (*comp_done)(struct vfe_device *vfe, u8 comp);
 142         void (*wm_done)(struct vfe_device *vfe, u8 wm);
 143 };
 144 
 145 struct vfe_device {
 146         struct camss *camss;
 147         u8 id;
 148         void __iomem *base;
 149         u32 irq;
 150         char irq_name[30];
 151         struct camss_clock *clock;
 152         int nclocks;
 153         struct completion reset_complete;
 154         struct completion halt_complete;
 155         struct mutex power_lock;
 156         int power_count;
 157         struct mutex stream_lock;
 158         int stream_count;
 159         spinlock_t output_lock;
 160         enum vfe_line_id wm_output_map[MSM_VFE_IMAGE_MASTERS_NUM];
 161         struct vfe_line line[MSM_VFE_LINE_NUM];
 162         u32 reg_update;
 163         u8 was_streaming;
 164         const struct vfe_hw_ops *ops;
 165         struct vfe_isr_ops isr_ops;
 166 };
 167 
 168 struct resources;
 169 
 170 int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
 171                         const struct resources *res, u8 id);
 172 
 173 int msm_vfe_register_entities(struct vfe_device *vfe,
 174                               struct v4l2_device *v4l2_dev);
 175 
 176 void msm_vfe_unregister_entities(struct vfe_device *vfe);
 177 
 178 void msm_vfe_get_vfe_id(struct media_entity *entity, u8 *id);
 179 void msm_vfe_get_vfe_line_id(struct media_entity *entity, enum vfe_line_id *id);
 180 
 181 void msm_vfe_stop_streaming(struct vfe_device *vfe);
 182 
 183 extern const struct vfe_hw_ops vfe_ops_4_1;
 184 extern const struct vfe_hw_ops vfe_ops_4_7;
 185 
 186 #endif /* QC_MSM_CAMSS_VFE_H */

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