// SPDX-License-Identifier: GPL-2.0+ /* * i.MX Pixel Pipeline (PXP) mem-to-mem scaler/CSC/rotator driver * * Copyright (c) 2018 Pengutronix, Philipp Zabel * * based on vim2m * * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. * Pawel Osciak, <[email protected]> * Marek Szyprowski, <[email protected]> */ #include <linux/bitfield.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/iopoll.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/sched.h> #include <linux/slab.h> #include <media/media-device.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-mem2mem.h> #include <media/videobuf2-dma-contig.h> #include "imx-pxp.h" static unsigned int debug; module_param(debug, uint, 0644); MODULE_PARM_DESC(…) …; #define MIN_W … #define MIN_H … #define MAX_W … #define MAX_H … #define ALIGN_W … #define ALIGN_H … /* Flags that indicate a format can be used for capture/output */ #define MEM2MEM_CAPTURE … #define MEM2MEM_OUTPUT … #define MEM2MEM_NAME … /* Flags that indicate processing mode */ #define MEM2MEM_HFLIP … #define MEM2MEM_VFLIP … #define PXP_VERSION_MAJOR(version) … #define PXP_VERSION_MINOR(version) … #define dprintk(dev, fmt, arg...) … struct pxp_fmt { … }; static struct pxp_fmt formats[] = …; #define NUM_FORMATS … /* Per-queue, driver-specific private data */ struct pxp_q_data { … }; enum { … }; static const struct regmap_config pxp_regmap_config = …; static struct pxp_fmt *find_format(unsigned int pixelformat) { … } struct pxp_ctx; struct pxp_pdata { … }; struct pxp_dev { … }; struct pxp_ctx { … }; static inline struct pxp_ctx *file2ctx(struct file *file) { … } static struct pxp_q_data *get_q_data(struct pxp_ctx *ctx, enum v4l2_buf_type type) { … } static inline u32 pxp_read(struct pxp_dev *dev, u32 reg) { … } static inline void pxp_write(struct pxp_dev *dev, u32 reg, u32 value) { … } static u32 pxp_v4l2_pix_fmt_to_ps_format(u32 v4l2_pix_fmt) { … } static u32 pxp_v4l2_pix_fmt_to_out_format(u32 v4l2_pix_fmt) { … } static bool pxp_v4l2_pix_fmt_is_yuv(u32 v4l2_pix_fmt) { … } static void pxp_setup_csc(struct pxp_ctx *ctx) { … } static u32 pxp_imx6ull_data_path_ctrl0(struct pxp_ctx *ctx) { … } static u32 pxp_imx7d_data_path_ctrl0(struct pxp_ctx *ctx) { … } static void pxp_set_data_path(struct pxp_ctx *ctx) { … } static int pxp_start(struct pxp_ctx *ctx, struct vb2_v4l2_buffer *in_vb, struct vb2_v4l2_buffer *out_vb) { … } static void pxp_job_finish(struct pxp_dev *dev) { … } /* * mem2mem callbacks */ static void pxp_device_run(void *priv) { … } static int pxp_job_ready(void *priv) { … } static void pxp_job_abort(void *priv) { … } /* * interrupt handler */ static irqreturn_t pxp_irq_handler(int irq, void *dev_id) { … } /* * video ioctls */ static int pxp_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { … } static int pxp_enum_fmt(struct v4l2_fmtdesc *f, u32 type) { … } static int pxp_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { … } static int pxp_enum_fmt_vid_out(struct file *file, void *priv, struct v4l2_fmtdesc *f) { … } static int pxp_g_fmt(struct pxp_ctx *ctx, struct v4l2_format *f) { … } static int pxp_g_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f) { … } static int pxp_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static inline u32 pxp_bytesperline(struct pxp_fmt *fmt, u32 width) { … } static inline u32 pxp_sizeimage(struct pxp_fmt *fmt, u32 width, u32 height) { … } static int pxp_try_fmt(struct v4l2_format *f, struct pxp_fmt *fmt) { … } static void pxp_fixup_colorimetry_cap(struct pxp_ctx *ctx, u32 dst_fourcc, enum v4l2_ycbcr_encoding *ycbcr_enc, enum v4l2_quantization *quantization) { … } static int pxp_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int pxp_try_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f) { … } static int pxp_s_fmt(struct pxp_ctx *ctx, struct v4l2_format *f) { … } static int pxp_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { … } static int pxp_s_fmt_vid_out(struct file *file, void *priv, struct v4l2_format *f) { … } static int pxp_enum_framesizes(struct file *file, void *fh, struct v4l2_frmsizeenum *fsize) { … } static u8 pxp_degrees_to_rot_mode(u32 degrees) { … } static int pxp_s_ctrl(struct v4l2_ctrl *ctrl) { … } static const struct v4l2_ctrl_ops pxp_ctrl_ops = …; static const struct v4l2_ioctl_ops pxp_ioctl_ops = …; /* * Queue operations */ static int pxp_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) { … } static int pxp_buf_prepare(struct vb2_buffer *vb) { … } static void pxp_buf_queue(struct vb2_buffer *vb) { … } static int pxp_start_streaming(struct vb2_queue *q, unsigned int count) { … } static void pxp_stop_streaming(struct vb2_queue *q) { … } static const struct vb2_ops pxp_qops = …; static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) { … } /* * File operations */ static int pxp_open(struct file *file) { … } static int pxp_release(struct file *file) { … } static const struct v4l2_file_operations pxp_fops = …; static const struct video_device pxp_videodev = …; static const struct v4l2_m2m_ops m2m_ops = …; static int pxp_soft_reset(struct pxp_dev *dev) { … } static int pxp_probe(struct platform_device *pdev) { … } static void pxp_remove(struct platform_device *pdev) { … } static const struct pxp_pdata pxp_imx6ull_pdata = …; static const struct pxp_pdata pxp_imx7d_pdata = …; static const struct of_device_id pxp_dt_ids[] = …; MODULE_DEVICE_TABLE(of, pxp_dt_ids); static struct platform_driver pxp_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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