// SPDX-License-Identifier: GPL-2.0-only /* * vivid-core.c - A Virtual Video Test Driver, core initialization * * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved. */ #include <linux/module.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/vmalloc.h> #include <linux/font.h> #include <linux/mutex.h> #include <linux/platform_device.h> #include <linux/videodev2.h> #include <linux/v4l2-dv-timings.h> #include <media/videobuf2-vmalloc.h> #include <media/videobuf2-dma-contig.h> #include <media/v4l2-dv-timings.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-fh.h> #include <media/v4l2-event.h> #include "vivid-core.h" #include "vivid-vid-common.h" #include "vivid-vid-cap.h" #include "vivid-vid-out.h" #include "vivid-radio-common.h" #include "vivid-radio-rx.h" #include "vivid-radio-tx.h" #include "vivid-sdr-cap.h" #include "vivid-vbi-cap.h" #include "vivid-vbi-out.h" #include "vivid-osd.h" #include "vivid-cec.h" #include "vivid-ctrls.h" #include "vivid-meta-cap.h" #include "vivid-meta-out.h" #include "vivid-touch-cap.h" #define VIVID_MODULE_NAME … #define MAX_STRING_LENGTH … MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …; unsigned int n_devs = …; module_param(n_devs, uint, 0444); MODULE_PARM_DESC(…) …; static int vid_cap_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int vid_out_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int vbi_cap_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int vbi_out_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int sdr_cap_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int radio_rx_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int radio_tx_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int meta_cap_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int meta_out_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int touch_cap_nr[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int ccs_cap_mode[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static int ccs_out_mode[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static unsigned multiplanar[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; /* * Default: video + vbi-cap (raw and sliced) + radio rx + radio tx + sdr + * vbi-out + vid-out + meta-cap */ static unsigned int node_types[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; /* Default: 4 inputs */ static unsigned num_inputs[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; /* Default: input 0 = WEBCAM, 1 = TV, 2 = SVID, 3 = HDMI */ static unsigned input_types[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; /* Default: 2 outputs */ static unsigned num_outputs[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; /* Default: output 0 = SVID, 1 = HDMI */ static unsigned output_types[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; unsigned vivid_debug; module_param(vivid_debug, uint, 0644); MODULE_PARM_DESC(…) …; static bool no_error_inj; module_param(no_error_inj, bool, 0444); MODULE_PARM_DESC(…) …; static unsigned int allocators[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static unsigned int cache_hints[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; static unsigned int supports_requests[VIVID_MAX_DEVS] = …; module_param_array(…); MODULE_PARM_DESC(…) …; struct vivid_dev *vivid_devs[VIVID_MAX_DEVS]; DEFINE_SPINLOCK(…); struct workqueue_struct *update_hdmi_ctrls_workqueue; u64 hdmi_to_output_menu_skip_mask; u64 hdmi_input_update_outputs_mask; struct vivid_dev *vivid_ctrl_hdmi_to_output_instance[MAX_MENU_ITEMS]; unsigned int vivid_ctrl_hdmi_to_output_index[MAX_MENU_ITEMS]; char *vivid_ctrl_hdmi_to_output_strings[MAX_MENU_ITEMS + 1] = …; DEFINE_SPINLOCK(…); struct workqueue_struct *update_svid_ctrls_workqueue; u64 svid_to_output_menu_skip_mask; struct vivid_dev *vivid_ctrl_svid_to_output_instance[MAX_MENU_ITEMS]; unsigned int vivid_ctrl_svid_to_output_index[MAX_MENU_ITEMS]; char *vivid_ctrl_svid_to_output_strings[MAX_MENU_ITEMS + 1] = …; const struct v4l2_rect vivid_min_rect = …; const struct v4l2_rect vivid_max_rect = …; static const u8 vivid_hdmi_edid[256] = …; static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { … } static int vidioc_s_hw_freq_seek(struct file *file, void *fh, const struct v4l2_hw_freq_seek *a) { … } static int vidioc_enum_freq_bands(struct file *file, void *fh, struct v4l2_frequency_band *band) { … } static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt) { … } static int vidioc_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt) { … } static int vidioc_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf) { … } static int vidioc_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf) { … } static int vidioc_overlay(struct file *file, void *fh, unsigned i) { … } static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *a) { … } static int vidioc_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *a) { … } static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) { … } static int vidioc_s_dv_timings(struct file *file, void *fh, struct v4l2_dv_timings *timings) { … } static int vidioc_g_pixelaspect(struct file *file, void *fh, int type, struct v4l2_fract *f) { … } static int vidioc_g_selection(struct file *file, void *fh, struct v4l2_selection *sel) { … } static int vidioc_s_selection(struct file *file, void *fh, struct v4l2_selection *sel) { … } static int vidioc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *parm) { … } static int vidioc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *parm) { … } static int vidioc_log_status(struct file *file, void *fh) { … } static ssize_t vivid_radio_read(struct file *file, char __user *buf, size_t size, loff_t *offset) { … } static ssize_t vivid_radio_write(struct file *file, const char __user *buf, size_t size, loff_t *offset) { … } static __poll_t vivid_radio_poll(struct file *file, struct poll_table_struct *wait) { … } static int vivid_enum_input(struct file *file, void *priv, struct v4l2_input *inp) { … } static int vivid_g_input(struct file *file, void *priv, unsigned int *i) { … } static int vivid_s_input(struct file *file, void *priv, unsigned int i) { … } static int vivid_enum_fmt_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { … } static int vivid_g_fmt_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int vivid_try_fmt_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int vivid_s_fmt_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int vivid_g_fmt_cap_mplane(struct file *file, void *priv, struct v4l2_format *f) { … } static int vivid_try_fmt_cap_mplane(struct file *file, void *priv, struct v4l2_format *f) { … } static int vivid_s_fmt_cap_mplane(struct file *file, void *priv, struct v4l2_format *f) { … } static bool vivid_is_in_use(bool valid, struct video_device *vdev) { … } static bool vivid_is_last_user(struct vivid_dev *dev) { … } static void vivid_reconnect(struct vivid_dev *dev) { … } static int vivid_fop_release(struct file *file) { … } static const struct v4l2_file_operations vivid_fops = …; static const struct v4l2_file_operations vivid_radio_fops = …; static int vidioc_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p) { … } static int vidioc_create_bufs(struct file *file, void *priv, struct v4l2_create_buffers *p) { … } static const struct v4l2_ioctl_ops vivid_ioctl_ops = …; /* ----------------------------------------------------------------- Initialization and module stuff ------------------------------------------------------------------*/ static void vivid_dev_release(struct v4l2_device *v4l2_dev) { … } #ifdef CONFIG_MEDIA_CONTROLLER static int vivid_req_validate(struct media_request *req) { … } static const struct media_device_ops vivid_media_ops = …; #endif static int vivid_create_queue(struct vivid_dev *dev, struct vb2_queue *q, u32 buf_type, unsigned int min_reqbufs_allocation, const struct vb2_ops *ops) { … } static int vivid_detect_feature_set(struct vivid_dev *dev, int inst, unsigned node_type, bool *has_tuner, bool *has_modulator, int *ccs_cap, int *ccs_out, unsigned in_type_counter[4], unsigned out_type_counter[4]) { … } static void vivid_set_capabilities(struct vivid_dev *dev) { … } static void vivid_disable_unused_ioctls(struct vivid_dev *dev, bool has_tuner, bool has_modulator, unsigned in_type_counter[4], unsigned out_type_counter[4]) { … } static int vivid_init_dv_timings(struct vivid_dev *dev) { … } static int vivid_create_queues(struct vivid_dev *dev) { … } static int vivid_create_devnodes(struct platform_device *pdev, struct vivid_dev *dev, int inst, v4l2_std_id tvnorms_cap, v4l2_std_id tvnorms_out, unsigned in_type_counter[4], unsigned out_type_counter[4]) { … } static void update_hdmi_ctrls_work_handler(struct work_struct *work) { … } static void update_svid_ctrls_work_handler(struct work_struct *work) { … } static int vivid_create_instance(struct platform_device *pdev, int inst) { … } /* This routine allocates from 1 to n_devs virtual drivers. The real maximum number of virtual drivers will depend on how many drivers will succeed. This is limited to the maximum number of devices that videodev supports, which is equal to VIDEO_NUM_DEVICES. */ static int vivid_probe(struct platform_device *pdev) { … } static void vivid_remove(struct platform_device *pdev) { … } static void vivid_pdev_release(struct device *dev) { … } static struct platform_device vivid_pdev = …; static struct platform_driver vivid_pdrv = …; static int __init vivid_init(void) { … } static void __exit vivid_exit(void) { … } module_init(…) …; module_exit(vivid_exit);
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