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linux/drivers/media/test-drivers/vivid/vivid-core.h
Hans Verkuil 9e5f21d656 media: vivid: fix 'disconnect' error injection 
The 'disconnect' error injection functionality suffered from bit rot.

New device nodes were added without updating vivid_user_gen_s_ctrl(), so
that function had to be updated for the new device nodes.

Also, vivid didn't check if specific device nodes were actually ever
created, so the vivid_is_last_user() would fail on that (it would return
true instead of false in that case).

Finally, selecting Disconnect, then unbind the vivid driver would fail
since the remove() would think that the device nodes were already
unregistered. Keep track of whether disconnect was pressed and re-register
the device nodes in remove() before doing the real unregister.

[hverkuil: unsigned uses -> unsigned int uses]

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-12-07 15:07:51 +01:00

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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* vivid-core.h - core datastructures
*
* Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
*/
#ifndef _VIVID_CORE_H_
#define _VIVID_CORE_H_
#include <linux/fb.h>
#include <linux/workqueue.h>
#include <media/cec.h>
#include <media/videobuf2-v4l2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-ctrls.h>
#include <media/tpg/v4l2-tpg.h>
#include "vivid-rds-gen.h"
#include "vivid-vbi-gen.h"
#define dprintk(dev, level, fmt, arg...) \
v4l2_dbg(level, vivid_debug, &dev->v4l2_dev, fmt, ## arg)
/* The maximum number of clip rectangles */
#define MAX_CLIPS 16
/* The maximum number of inputs */
#define MAX_INPUTS 16
/* The maximum number of outputs */
#define MAX_OUTPUTS 16
/* The maximum up or down scaling factor is 4 */
#define MAX_ZOOM 4
/* The maximum image width/height are set to 4K DMT */
#define MAX_WIDTH 4096
#define MAX_HEIGHT 2160
/* The minimum image width/height */
#define MIN_WIDTH 16
#define MIN_HEIGHT 16
/* The data_offset of plane 0 for the multiplanar formats */
#define PLANE0_DATA_OFFSET 128
/* The supported TV frequency range in MHz */
#define MIN_TV_FREQ (44U * 16U)
#define MAX_TV_FREQ (958U * 16U)
/* The number of samples returned in every SDR buffer */
#define SDR_CAP_SAMPLES_PER_BUF 0x4000
/* used by the threads to know when to resync internal counters */
#define JIFFIES_PER_DAY (3600U * 24U * HZ)
#define JIFFIES_RESYNC (JIFFIES_PER_DAY * (0xf0000000U / JIFFIES_PER_DAY))
extern const struct v4l2_rect vivid_min_rect;
extern const struct v4l2_rect vivid_max_rect;
extern unsigned vivid_debug;
struct vivid_fmt {
u32 fourcc; /* v4l2 format id */
enum tgp_color_enc color_enc;
bool can_do_overlay;
u8 vdownsampling[TPG_MAX_PLANES];
u32 alpha_mask;
u8 planes;
u8 buffers;
u32 data_offset[TPG_MAX_PLANES];
u32 bit_depth[TPG_MAX_PLANES];
};
extern struct vivid_fmt vivid_formats[];
/* buffer for one video frame */
struct vivid_buffer {
/* common v4l buffer stuff -- must be first */
struct vb2_v4l2_buffer vb;
struct list_head list;
};
enum vivid_input {
WEBCAM,
TV,
SVID,
HDMI,
};
enum vivid_signal_mode {
CURRENT_DV_TIMINGS,
CURRENT_STD = CURRENT_DV_TIMINGS,
NO_SIGNAL,
NO_LOCK,
OUT_OF_RANGE,
SELECTED_DV_TIMINGS,
SELECTED_STD = SELECTED_DV_TIMINGS,
CYCLE_DV_TIMINGS,
CYCLE_STD = CYCLE_DV_TIMINGS,
CUSTOM_DV_TIMINGS,
};
enum vivid_colorspace {
VIVID_CS_170M,
VIVID_CS_709,
VIVID_CS_SRGB,
VIVID_CS_OPRGB,
VIVID_CS_2020,
VIVID_CS_DCI_P3,
VIVID_CS_240M,
VIVID_CS_SYS_M,
VIVID_CS_SYS_BG,
};
#define VIVID_INVALID_SIGNAL(mode) \
((mode) == NO_SIGNAL || (mode) == NO_LOCK || (mode) == OUT_OF_RANGE)
struct vivid_cec_work {
struct list_head list;
struct delayed_work work;
struct cec_adapter *adap;
struct vivid_dev *dev;
unsigned int usecs;
unsigned int timeout_ms;
u8 tx_status;
struct cec_msg msg;
};
struct vivid_dev {
unsigned inst;
struct v4l2_device v4l2_dev;
#ifdef CONFIG_MEDIA_CONTROLLER
struct media_device mdev;
struct media_pad vid_cap_pad;
struct media_pad vid_out_pad;
struct media_pad vbi_cap_pad;
struct media_pad vbi_out_pad;
struct media_pad sdr_cap_pad;
struct media_pad meta_cap_pad;
struct media_pad meta_out_pad;
struct media_pad touch_cap_pad;
#endif
struct v4l2_ctrl_handler ctrl_hdl_user_gen;
struct v4l2_ctrl_handler ctrl_hdl_user_vid;
struct v4l2_ctrl_handler ctrl_hdl_user_aud;
struct v4l2_ctrl_handler ctrl_hdl_streaming;
struct v4l2_ctrl_handler ctrl_hdl_sdtv_cap;
struct v4l2_ctrl_handler ctrl_hdl_loop_cap;
struct v4l2_ctrl_handler ctrl_hdl_fb;
struct video_device vid_cap_dev;
struct v4l2_ctrl_handler ctrl_hdl_vid_cap;
struct video_device vid_out_dev;
struct v4l2_ctrl_handler ctrl_hdl_vid_out;
struct video_device vbi_cap_dev;
struct v4l2_ctrl_handler ctrl_hdl_vbi_cap;
struct video_device vbi_out_dev;
struct v4l2_ctrl_handler ctrl_hdl_vbi_out;
struct video_device radio_rx_dev;
struct v4l2_ctrl_handler ctrl_hdl_radio_rx;
struct video_device radio_tx_dev;
struct v4l2_ctrl_handler ctrl_hdl_radio_tx;
struct video_device sdr_cap_dev;
struct v4l2_ctrl_handler ctrl_hdl_sdr_cap;
struct video_device meta_cap_dev;
struct v4l2_ctrl_handler ctrl_hdl_meta_cap;
struct video_device meta_out_dev;
struct v4l2_ctrl_handler ctrl_hdl_meta_out;
struct video_device touch_cap_dev;
struct v4l2_ctrl_handler ctrl_hdl_touch_cap;
spinlock_t slock;
struct mutex mutex;
/* capabilities */
u32 vid_cap_caps;
u32 vid_out_caps;
u32 vbi_cap_caps;
u32 vbi_out_caps;
u32 sdr_cap_caps;
u32 radio_rx_caps;
u32 radio_tx_caps;
u32 meta_cap_caps;
u32 meta_out_caps;
u32 touch_cap_caps;
/* supported features */
bool multiplanar;
unsigned num_inputs;
unsigned int num_hdmi_inputs;
u8 input_type[MAX_INPUTS];
u8 input_name_counter[MAX_INPUTS];
unsigned num_outputs;
unsigned int num_hdmi_outputs;
u8 output_type[MAX_OUTPUTS];
u8 output_name_counter[MAX_OUTPUTS];
bool has_audio_inputs;
bool has_audio_outputs;
bool has_vid_cap;
bool has_vid_out;
bool has_vbi_cap;
bool has_raw_vbi_cap;
bool has_sliced_vbi_cap;
bool has_vbi_out;
bool has_raw_vbi_out;
bool has_sliced_vbi_out;
bool has_radio_rx;
bool has_radio_tx;
bool has_sdr_cap;
bool has_fb;
bool has_meta_cap;
bool has_meta_out;
bool has_tv_tuner;
bool has_touch_cap;
bool can_loop_video;
/* controls */
struct v4l2_ctrl *brightness;
struct v4l2_ctrl *contrast;
struct v4l2_ctrl *saturation;
struct v4l2_ctrl *hue;
struct {
/* autogain/gain cluster */
struct v4l2_ctrl *autogain;
struct v4l2_ctrl *gain;
};
struct v4l2_ctrl *volume;
struct v4l2_ctrl *mute;
struct v4l2_ctrl *alpha;
struct v4l2_ctrl *button;
struct v4l2_ctrl *boolean;
struct v4l2_ctrl *int32;
struct v4l2_ctrl *int64;
struct v4l2_ctrl *menu;
struct v4l2_ctrl *string;
struct v4l2_ctrl *bitmask;
struct v4l2_ctrl *int_menu;
struct v4l2_ctrl *test_pattern;
struct v4l2_ctrl *colorspace;
struct v4l2_ctrl *rgb_range_cap;
struct v4l2_ctrl *real_rgb_range_cap;
struct {
/* std_signal_mode/standard cluster */
struct v4l2_ctrl *ctrl_std_signal_mode;
struct v4l2_ctrl *ctrl_standard;
};
struct {
/* dv_timings_signal_mode/timings cluster */
struct v4l2_ctrl *ctrl_dv_timings_signal_mode;
struct v4l2_ctrl *ctrl_dv_timings;
};
struct v4l2_ctrl *ctrl_display_present;
struct v4l2_ctrl *ctrl_has_crop_cap;
struct v4l2_ctrl *ctrl_has_compose_cap;
struct v4l2_ctrl *ctrl_has_scaler_cap;
struct v4l2_ctrl *ctrl_has_crop_out;
struct v4l2_ctrl *ctrl_has_compose_out;
struct v4l2_ctrl *ctrl_has_scaler_out;
struct v4l2_ctrl *ctrl_tx_mode;
struct v4l2_ctrl *ctrl_tx_rgb_range;
struct v4l2_ctrl *ctrl_tx_edid_present;
struct v4l2_ctrl *ctrl_tx_hotplug;
struct v4l2_ctrl *ctrl_tx_rxsense;
struct v4l2_ctrl *ctrl_rx_power_present;
struct v4l2_ctrl *radio_tx_rds_pi;
struct v4l2_ctrl *radio_tx_rds_pty;
struct v4l2_ctrl *radio_tx_rds_mono_stereo;
struct v4l2_ctrl *radio_tx_rds_art_head;
struct v4l2_ctrl *radio_tx_rds_compressed;
struct v4l2_ctrl *radio_tx_rds_dyn_pty;
struct v4l2_ctrl *radio_tx_rds_ta;
struct v4l2_ctrl *radio_tx_rds_tp;
struct v4l2_ctrl *radio_tx_rds_ms;
struct v4l2_ctrl *radio_tx_rds_psname;
struct v4l2_ctrl *radio_tx_rds_radiotext;
struct v4l2_ctrl *radio_rx_rds_pty;
struct v4l2_ctrl *radio_rx_rds_ta;
struct v4l2_ctrl *radio_rx_rds_tp;
struct v4l2_ctrl *radio_rx_rds_ms;
struct v4l2_ctrl *radio_rx_rds_psname;
struct v4l2_ctrl *radio_rx_rds_radiotext;
unsigned input_brightness[MAX_INPUTS];
unsigned osd_mode;
unsigned button_pressed;
bool sensor_hflip;
bool sensor_vflip;
bool hflip;
bool vflip;
bool vbi_cap_interlaced;
bool loop_video;
bool reduced_fps;
/* Framebuffer */
unsigned long video_pbase;
void *video_vbase;
u32 video_buffer_size;
int display_width;
int display_height;
int display_byte_stride;
int bits_per_pixel;
int bytes_per_pixel;
struct fb_info fb_info;
struct fb_var_screeninfo fb_defined;
struct fb_fix_screeninfo fb_fix;
/* Error injection */
bool disconnect_error;
bool queue_setup_error;
bool buf_prepare_error;
bool start_streaming_error;
bool dqbuf_error;
bool req_validate_error;
bool seq_wrap;
bool time_wrap;
u64 time_wrap_offset;
unsigned perc_dropped_buffers;
enum vivid_signal_mode std_signal_mode[MAX_INPUTS];
unsigned int query_std_last[MAX_INPUTS];
v4l2_std_id query_std[MAX_INPUTS];
enum tpg_video_aspect std_aspect_ratio[MAX_INPUTS];
enum vivid_signal_mode dv_timings_signal_mode[MAX_INPUTS];
char **query_dv_timings_qmenu;
char *query_dv_timings_qmenu_strings;
unsigned query_dv_timings_size;
unsigned int query_dv_timings_last[MAX_INPUTS];
unsigned int query_dv_timings[MAX_INPUTS];
enum tpg_video_aspect dv_timings_aspect_ratio[MAX_INPUTS];
/* Input */
unsigned input;
v4l2_std_id std_cap[MAX_INPUTS];
struct v4l2_dv_timings dv_timings_cap[MAX_INPUTS];
int dv_timings_cap_sel[MAX_INPUTS];
u32 service_set_cap;
struct vivid_vbi_gen_data vbi_gen;
u8 *edid;
unsigned edid_blocks;
unsigned edid_max_blocks;
unsigned webcam_size_idx;
unsigned webcam_ival_idx;
unsigned tv_freq;
unsigned tv_audmode;
unsigned tv_field_cap;
unsigned tv_audio_input;
u32 power_present;
/* Capture Overlay */
struct v4l2_framebuffer fb_cap;
struct v4l2_fh *overlay_cap_owner;
void *fb_vbase_cap;
int overlay_cap_top, overlay_cap_left;
enum v4l2_field overlay_cap_field;
void *bitmap_cap;
struct v4l2_clip clips_cap[MAX_CLIPS];
struct v4l2_clip try_clips_cap[MAX_CLIPS];
unsigned clipcount_cap;
/* Output */
unsigned output;
v4l2_std_id std_out;
struct v4l2_dv_timings dv_timings_out;
u32 colorspace_out;
u32 ycbcr_enc_out;
u32 hsv_enc_out;
u32 quantization_out;
u32 xfer_func_out;
u32 service_set_out;
unsigned bytesperline_out[TPG_MAX_PLANES];
unsigned tv_field_out;
unsigned tv_audio_output;
bool vbi_out_have_wss;
u8 vbi_out_wss[2];
bool vbi_out_have_cc[2];
u8 vbi_out_cc[2][2];
bool dvi_d_out;
u8 *scaled_line;
u8 *blended_line;
unsigned cur_scaled_line;
bool display_present[MAX_OUTPUTS];
/* Output Overlay */
void *fb_vbase_out;
bool overlay_out_enabled;
int overlay_out_top, overlay_out_left;
void *bitmap_out;
struct v4l2_clip clips_out[MAX_CLIPS];
struct v4l2_clip try_clips_out[MAX_CLIPS];
unsigned clipcount_out;
unsigned fbuf_out_flags;
u32 chromakey_out;
u8 global_alpha_out;
/* video capture */
struct tpg_data tpg;
unsigned ms_vid_cap;
bool must_blank[VIDEO_MAX_FRAME];
const struct vivid_fmt *fmt_cap;
struct v4l2_fract timeperframe_vid_cap;
enum v4l2_field field_cap;
struct v4l2_rect src_rect;
struct v4l2_rect fmt_cap_rect;
struct v4l2_rect crop_cap;
struct v4l2_rect compose_cap;
struct v4l2_rect crop_bounds_cap;
struct vb2_queue vb_vid_cap_q;
struct list_head vid_cap_active;
struct vb2_queue vb_vbi_cap_q;
struct list_head vbi_cap_active;
struct vb2_queue vb_meta_cap_q;
struct list_head meta_cap_active;
struct vb2_queue vb_touch_cap_q;
struct list_head touch_cap_active;
/* thread for generating video capture stream */
struct task_struct *kthread_vid_cap;
unsigned long jiffies_vid_cap;
u64 cap_stream_start;
u64 cap_frame_period;
u64 cap_frame_eof_offset;
u32 cap_seq_offset;
u32 cap_seq_count;
bool cap_seq_resync;
u32 vid_cap_seq_start;
u32 vid_cap_seq_count;
bool vid_cap_streaming;
u32 vbi_cap_seq_start;
u32 vbi_cap_seq_count;
bool vbi_cap_streaming;
bool stream_sliced_vbi_cap;
u32 meta_cap_seq_start;
u32 meta_cap_seq_count;
bool meta_cap_streaming;
/* Touch capture */
struct task_struct *kthread_touch_cap;
unsigned long jiffies_touch_cap;
u64 touch_cap_stream_start;
u32 touch_cap_seq_offset;
bool touch_cap_seq_resync;
u32 touch_cap_seq_start;
u32 touch_cap_seq_count;
bool touch_cap_streaming;
struct v4l2_fract timeperframe_tch_cap;
struct v4l2_pix_format tch_format;
int tch_pat_random;
/* video output */
const struct vivid_fmt *fmt_out;
struct v4l2_fract timeperframe_vid_out;
enum v4l2_field field_out;
struct v4l2_rect sink_rect;
struct v4l2_rect fmt_out_rect;
struct v4l2_rect crop_out;
struct v4l2_rect compose_out;
struct v4l2_rect compose_bounds_out;
struct vb2_queue vb_vid_out_q;
struct list_head vid_out_active;
struct vb2_queue vb_vbi_out_q;
struct list_head vbi_out_active;
struct vb2_queue vb_meta_out_q;
struct list_head meta_out_active;
/* video loop precalculated rectangles */
/*
* Intersection between what the output side composes and the capture side
* crops. I.e., what actually needs to be copied from the output buffer to
* the capture buffer.
*/
struct v4l2_rect loop_vid_copy;
/* The part of the output buffer that (after scaling) corresponds to loop_vid_copy. */
struct v4l2_rect loop_vid_out;
/* The part of the capture buffer that (after scaling) corresponds to loop_vid_copy. */
struct v4l2_rect loop_vid_cap;
/*
* The intersection of the framebuffer, the overlay output window and
* loop_vid_copy. I.e., the part of the framebuffer that actually should be
* blended with the compose_out rectangle. This uses the framebuffer origin.
*/
struct v4l2_rect loop_fb_copy;
/* The same as loop_fb_copy but with compose_out origin. */
struct v4l2_rect loop_vid_overlay;
/*
* The part of the capture buffer that (after scaling) corresponds
* to loop_vid_overlay.
*/
struct v4l2_rect loop_vid_overlay_cap;
/* thread for generating video output stream */
struct task_struct *kthread_vid_out;
unsigned long jiffies_vid_out;
u32 out_seq_offset;
u32 out_seq_count;
bool out_seq_resync;
u32 vid_out_seq_start;
u32 vid_out_seq_count;
bool vid_out_streaming;
u32 vbi_out_seq_start;
u32 vbi_out_seq_count;
bool vbi_out_streaming;
bool stream_sliced_vbi_out;
u32 meta_out_seq_start;
u32 meta_out_seq_count;
bool meta_out_streaming;
/* SDR capture */
struct vb2_queue vb_sdr_cap_q;
struct list_head sdr_cap_active;
u32 sdr_pixelformat; /* v4l2 format id */
unsigned sdr_buffersize;
unsigned sdr_adc_freq;
unsigned sdr_fm_freq;
unsigned sdr_fm_deviation;
int sdr_fixp_src_phase;
int sdr_fixp_mod_phase;
bool tstamp_src_is_soe;
bool has_crop_cap;
bool has_compose_cap;
bool has_scaler_cap;
bool has_crop_out;
bool has_compose_out;
bool has_scaler_out;
/* thread for generating SDR stream */
struct task_struct *kthread_sdr_cap;
unsigned long jiffies_sdr_cap;
u32 sdr_cap_seq_offset;
u32 sdr_cap_seq_count;
bool sdr_cap_seq_resync;
/* RDS generator */
struct vivid_rds_gen rds_gen;
/* Radio receiver */
unsigned radio_rx_freq;
unsigned radio_rx_audmode;
int radio_rx_sig_qual;
unsigned radio_rx_hw_seek_mode;
bool radio_rx_hw_seek_prog_lim;
bool radio_rx_rds_controls;
bool radio_rx_rds_enabled;
unsigned radio_rx_rds_use_alternates;
unsigned radio_rx_rds_last_block;
struct v4l2_fh *radio_rx_rds_owner;
/* Radio transmitter */
unsigned radio_tx_freq;
unsigned radio_tx_subchans;
bool radio_tx_rds_controls;
unsigned radio_tx_rds_last_block;
struct v4l2_fh *radio_tx_rds_owner;
/* Shared between radio receiver and transmitter */
bool radio_rds_loop;
ktime_t radio_rds_init_time;
/* CEC */
struct cec_adapter *cec_rx_adap;
struct cec_adapter *cec_tx_adap[MAX_OUTPUTS];
struct workqueue_struct *cec_workqueue;
spinlock_t cec_slock;
struct list_head cec_work_list;
unsigned int cec_xfer_time_jiffies;
unsigned long cec_xfer_start_jiffies;
u8 cec_output2bus_map[MAX_OUTPUTS];
/* CEC OSD String */
char osd[14];
unsigned long osd_jiffies;
bool meta_pts;
bool meta_scr;
};
static inline bool vivid_is_webcam(const struct vivid_dev *dev)
{
return dev->input_type[dev->input] == WEBCAM;
}
static inline bool vivid_is_tv_cap(const struct vivid_dev *dev)
{
return dev->input_type[dev->input] == TV;
}
static inline bool vivid_is_svid_cap(const struct vivid_dev *dev)
{
return dev->input_type[dev->input] == SVID;
}
static inline bool vivid_is_hdmi_cap(const struct vivid_dev *dev)
{
return dev->input_type[dev->input] == HDMI;
}
static inline bool vivid_is_sdtv_cap(const struct vivid_dev *dev)
{
return vivid_is_tv_cap(dev) || vivid_is_svid_cap(dev);
}
static inline bool vivid_is_svid_out(const struct vivid_dev *dev)
{
return dev->output_type[dev->output] == SVID;
}
static inline bool vivid_is_hdmi_out(const struct vivid_dev *dev)
{
return dev->output_type[dev->output] == HDMI;
}
#endif
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