// SPDX-License-Identifier: GPL-2.0-or-later /* * Auvitek AU0828 USB Bridge (Analog video support) * * Copyright (C) 2009 Devin Heitmueller <[email protected]> * Copyright (C) 2005-2008 Auvitek International, Ltd. */ /* Developer Notes: * * The hardware scaler supported is unimplemented * AC97 audio support is unimplemented (only i2s audio mode) * */ #include "au0828.h" #include "au8522.h" #include <linux/module.h> #include <linux/slab.h> #include <linux/init.h> #include <linux/device.h> #include <media/v4l2-common.h> #include <media/v4l2-mc.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-event.h> #include <media/tuner.h> #include "au0828-reg.h" static DEFINE_MUTEX(au0828_sysfs_lock); /* ------------------------------------------------------------------ Videobuf operations ------------------------------------------------------------------*/ static unsigned int isoc_debug; module_param(isoc_debug, int, 0644); MODULE_PARM_DESC(…) …; #define au0828_isocdbg(fmt, arg...) … static inline void i2c_gate_ctrl(struct au0828_dev *dev, int val) { … } static inline void print_err_status(struct au0828_dev *dev, int packet, int status) { … } static int check_dev(struct au0828_dev *dev) { … } /* * IRQ callback, called by URB callback */ static void au0828_irq_callback(struct urb *urb) { … } /* * Stop and Deallocate URBs */ static void au0828_uninit_isoc(struct au0828_dev *dev) { … } /* * Allocate URBs and start IRQ */ static int au0828_init_isoc(struct au0828_dev *dev, int max_packets, int num_bufs, int max_pkt_size, int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb)) { … } /* * Announces that a buffer were filled and request the next */ static inline void buffer_filled(struct au0828_dev *dev, struct au0828_dmaqueue *dma_q, struct au0828_buffer *buf) { … } /* * Identify the buffer header type and properly handles */ static void au0828_copy_video(struct au0828_dev *dev, struct au0828_dmaqueue *dma_q, struct au0828_buffer *buf, unsigned char *p, unsigned char *outp, unsigned long len) { … } /* * generic routine to get the next available buffer */ static inline void get_next_buf(struct au0828_dmaqueue *dma_q, struct au0828_buffer **buf) { … } static void au0828_copy_vbi(struct au0828_dev *dev, struct au0828_dmaqueue *dma_q, struct au0828_buffer *buf, unsigned char *p, unsigned char *outp, unsigned long len) { … } /* * generic routine to get the next available VBI buffer */ static inline void vbi_get_next_buf(struct au0828_dmaqueue *dma_q, struct au0828_buffer **buf) { … } /* * Controls the isoc copy of each urb packet */ static inline int au0828_isoc_copy(struct au0828_dev *dev, struct urb *urb) { … } void au0828_usb_v4l2_media_release(struct au0828_dev *dev) { … } static void au0828_usb_v4l2_release(struct v4l2_device *v4l2_dev) { … } int au0828_v4l2_device_register(struct usb_interface *interface, struct au0828_dev *dev) { … } static int queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) { … } static int buffer_prepare(struct vb2_buffer *vb) { … } static void buffer_queue(struct vb2_buffer *vb) { … } static int au0828_i2s_init(struct au0828_dev *dev) { … } /* * Auvitek au0828 analog stream enable */ static int au0828_analog_stream_enable(struct au0828_dev *d) { … } static int au0828_analog_stream_disable(struct au0828_dev *d) { … } static void au0828_analog_stream_reset(struct au0828_dev *dev) { … } /* * Some operations needs to stop current streaming */ static int au0828_stream_interrupt(struct au0828_dev *dev) { … } int au0828_start_analog_streaming(struct vb2_queue *vq, unsigned int count) { … } static void au0828_stop_streaming(struct vb2_queue *vq) { … } void au0828_stop_vbi_streaming(struct vb2_queue *vq) { … } static const struct vb2_ops au0828_video_qops = …; /* ------------------------------------------------------------------ V4L2 interface ------------------------------------------------------------------*/ /* * au0828_analog_unregister * unregister v4l2 devices */ int au0828_analog_unregister(struct au0828_dev *dev) { … } /* This function ensures that video frames continue to be delivered even if the ITU-656 input isn't receiving any data (thereby preventing applications such as tvtime from hanging) */ static void au0828_vid_buffer_timeout(struct timer_list *t) { … } static void au0828_vbi_buffer_timeout(struct timer_list *t) { … } static int au0828_v4l2_open(struct file *filp) { … } static int au0828_v4l2_close(struct file *filp) { … } /* Must be called with dev->lock held */ static void au0828_init_tuner(struct au0828_dev *dev) { … } static int au0828_set_format(struct au0828_dev *dev, unsigned int cmd, struct v4l2_format *format) { … } static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { … } static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { … } static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) { … } static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) { … } static int vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *input) { … } static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) { … } static void au0828_s_input(struct au0828_dev *dev, int index) { … } static int vidioc_s_input(struct file *file, void *priv, unsigned int index) { … } static int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *a) { … } static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) { … } static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a) { … } static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) { … } static int vidioc_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t) { … } static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *freq) { … } static int vidioc_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *freq) { … } /* RAW VBI ioctls */ static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_format *format) { … } static int vidioc_g_pixelaspect(struct file *file, void *priv, int type, struct v4l2_fract *f) { … } static int vidioc_g_selection(struct file *file, void *priv, struct v4l2_selection *s) { … } #ifdef CONFIG_VIDEO_ADV_DEBUG static int vidioc_g_register(struct file *file, void *priv, struct v4l2_dbg_register *reg) { … } static int vidioc_s_register(struct file *file, void *priv, const struct v4l2_dbg_register *reg) { … } #endif static int vidioc_log_status(struct file *file, void *fh) { … } void au0828_v4l2_suspend(struct au0828_dev *dev) { … } void au0828_v4l2_resume(struct au0828_dev *dev) { … } static const struct v4l2_file_operations au0828_v4l_fops = …; static const struct v4l2_ioctl_ops video_ioctl_ops = …; static const struct video_device au0828_video_template = …; static int au0828_vb2_setup(struct au0828_dev *dev) { … } static void au0828_analog_create_entities(struct au0828_dev *dev) { … } /**************************************************************************/ int au0828_analog_register(struct au0828_dev *dev, struct usb_interface *interface) { … }
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