// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2011 Atmel Corporation * Josh Wu, <[email protected]> * * Based on previous work by Lars Haring, <[email protected]> * and Sedji Gaouaou * Based on the bttv driver for Bt848 with respective copyright holders */ #include <linux/clk.h> #include <linux/completion.h> #include <linux/delay.h> #include <linux/fs.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of_graph.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/of.h> #include <linux/videodev2.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-dev.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-event.h> #include <media/v4l2-fwnode.h> #include <media/videobuf2-dma-contig.h> #include <media/v4l2-image-sizes.h> #include "atmel-isi.h" #define MAX_SUPPORT_WIDTH … #define MAX_SUPPORT_HEIGHT … #define MIN_FRAME_RATE … #define FRAME_INTERVAL_MILLI_SEC … /* Frame buffer descriptor */ struct fbd { … }; static void set_dma_ctrl(struct fbd *fb_desc, u32 ctrl) { … } struct isi_dma_desc { … }; /* Frame buffer data */ struct frame_buffer { … }; struct isi_graph_entity { … }; /* * struct isi_format - ISI media bus format information * @fourcc: Fourcc code for this format * @mbus_code: V4L2 media bus format code. * @bpp: Bytes per pixel (when stored in memory) * @swap: Byte swap configuration value * @support: Indicates format supported by subdev * @skip: Skip duplicate format supported by subdev */ struct isi_format { … }; struct atmel_isi { … }; #define notifier_to_isi(n) … static void isi_writel(struct atmel_isi *isi, u32 reg, u32 val) { … } static u32 isi_readl(struct atmel_isi *isi, u32 reg) { … } static void configure_geometry(struct atmel_isi *isi) { … } static irqreturn_t atmel_isi_handle_streaming(struct atmel_isi *isi) { … } /* ISI interrupt service routine */ static irqreturn_t isi_interrupt(int irq, void *dev_id) { … } #define WAIT_ISI_RESET … #define WAIT_ISI_DISABLE … static int atmel_isi_wait_status(struct atmel_isi *isi, int wait_reset) { … } /* ------------------------------------------------------------------ Videobuf operations ------------------------------------------------------------------*/ static int queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) { … } static int buffer_init(struct vb2_buffer *vb) { … } static int buffer_prepare(struct vb2_buffer *vb) { … } static void buffer_cleanup(struct vb2_buffer *vb) { … } static void start_dma(struct atmel_isi *isi, struct frame_buffer *buffer) { … } static void buffer_queue(struct vb2_buffer *vb) { … } static int start_streaming(struct vb2_queue *vq, unsigned int count) { … } /* abort streaming and wait for last buffer */ static void stop_streaming(struct vb2_queue *vq) { … } static const struct vb2_ops isi_video_qops = …; static int isi_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *fmt) { … } static const struct isi_format *find_format_by_fourcc(struct atmel_isi *isi, unsigned int fourcc) { … } static void isi_try_fse(struct atmel_isi *isi, const struct isi_format *isi_fmt, struct v4l2_subdev_state *sd_state) { … } static int isi_try_fmt(struct atmel_isi *isi, struct v4l2_format *f, const struct isi_format **current_fmt) { … } static int isi_set_fmt(struct atmel_isi *isi, struct v4l2_format *f) { … } static int isi_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int isi_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int isi_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { … } static int isi_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { … } static int isi_enum_input(struct file *file, void *priv, struct v4l2_input *i) { … } static int isi_g_input(struct file *file, void *priv, unsigned int *i) { … } static int isi_s_input(struct file *file, void *priv, unsigned int i) { … } static int isi_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a) { … } static int isi_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a) { … } static int isi_enum_framesizes(struct file *file, void *fh, struct v4l2_frmsizeenum *fsize) { … } static int isi_enum_frameintervals(struct file *file, void *fh, struct v4l2_frmivalenum *fival) { … } static int isi_camera_set_bus_param(struct atmel_isi *isi) { … } /* -----------------------------------------------------------------------*/ static int atmel_isi_parse_dt(struct atmel_isi *isi, struct platform_device *pdev) { … } static int isi_open(struct file *file) { … } static int isi_release(struct file *file) { … } static const struct v4l2_ioctl_ops isi_ioctl_ops = …; static const struct v4l2_file_operations isi_fops = …; static int isi_set_default_fmt(struct atmel_isi *isi) { … } static const struct isi_format isi_formats[] = …; static int isi_formats_init(struct atmel_isi *isi) { … } static int isi_graph_notify_complete(struct v4l2_async_notifier *notifier) { … } static void isi_graph_notify_unbind(struct v4l2_async_notifier *notifier, struct v4l2_subdev *sd, struct v4l2_async_connection *asd) { … } static int isi_graph_notify_bound(struct v4l2_async_notifier *notifier, struct v4l2_subdev *subdev, struct v4l2_async_connection *asd) { … } static const struct v4l2_async_notifier_operations isi_graph_notify_ops = …; static int isi_graph_init(struct atmel_isi *isi) { … } static int atmel_isi_probe(struct platform_device *pdev) { … } static void atmel_isi_remove(struct platform_device *pdev) { … } #ifdef CONFIG_PM static int atmel_isi_runtime_suspend(struct device *dev) { … } static int atmel_isi_runtime_resume(struct device *dev) { … } #endif /* CONFIG_PM */ static const struct dev_pm_ops atmel_isi_dev_pm_ops = …; static const struct of_device_id atmel_isi_of_match[] = …; MODULE_DEVICE_TABLE(of, atmel_isi_of_match); static struct platform_driver atmel_isi_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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