Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * vimc-capture.c Virtual Media Controller Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <media/v4l2-ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <media/videobuf2-core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <media/videobuf2-vmalloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include "vimc-common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include "vimc-streamer.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) struct vimc_cap_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	struct vimc_ent_device ved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	struct video_device vdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 	struct v4l2_pix_format format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	struct vb2_queue queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	struct list_head buf_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	 * NOTE: in a real driver, a spin lock must be used to access the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	 * queue because the frames are generated from a hardware interruption
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	 * and the isr is not allowed to sleep.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	 * Even if it is not necessary a spinlock in the vimc driver, we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	 * use it here as a code reference
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	spinlock_t qlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	u32 sequence;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	struct vimc_stream stream;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	struct media_pad pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) static const struct v4l2_pix_format fmt_default = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	.width = 640,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	.height = 480,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	.pixelformat = V4L2_PIX_FMT_RGB24,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	.field = V4L2_FIELD_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	.colorspace = V4L2_COLORSPACE_SRGB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) struct vimc_cap_buffer {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	 * struct vb2_v4l2_buffer must be the first element
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	 * the videobuf2 framework will allocate this struct based on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	 * buf_struct_size and use the first sizeof(struct vb2_buffer) bytes of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	 * memory as a vb2_buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	struct vb2_v4l2_buffer vb2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	struct list_head list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) static int vimc_cap_querycap(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 			     struct v4l2_capability *cap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	strscpy(cap->driver, VIMC_PDEV_NAME, sizeof(cap->driver));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	strscpy(cap->card, KBUILD_MODNAME, sizeof(cap->card));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	snprintf(cap->bus_info, sizeof(cap->bus_info),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		 "platform:%s", VIMC_PDEV_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) static void vimc_cap_get_format(struct vimc_ent_device *ved,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 				struct v4l2_pix_format *fmt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 						    ved);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	*fmt = vcap->format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) static int vimc_cap_g_fmt_vid_cap(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 				  struct v4l2_format *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	struct vimc_cap_device *vcap = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	f->fmt.pix = vcap->format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 				    struct v4l2_format *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	struct v4l2_pix_format *format = &f->fmt.pix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	const struct vimc_pix_map *vpix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	format->width = clamp_t(u32, format->width, VIMC_FRAME_MIN_WIDTH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 				VIMC_FRAME_MAX_WIDTH) & ~1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	format->height = clamp_t(u32, format->height, VIMC_FRAME_MIN_HEIGHT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 				 VIMC_FRAME_MAX_HEIGHT) & ~1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	/* Don't accept a pixelformat that is not on the table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	vpix = vimc_pix_map_by_pixelformat(format->pixelformat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	if (!vpix) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		format->pixelformat = fmt_default.pixelformat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		vpix = vimc_pix_map_by_pixelformat(format->pixelformat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	/* TODO: Add support for custom bytesperline values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	format->bytesperline = format->width * vpix->bpp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	format->sizeimage = format->bytesperline * format->height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	if (format->field == V4L2_FIELD_ANY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 		format->field = fmt_default.field;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	vimc_colorimetry_clamp(format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	if (format->colorspace == V4L2_COLORSPACE_DEFAULT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		format->colorspace = fmt_default.colorspace;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static int vimc_cap_s_fmt_vid_cap(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 				  struct v4l2_format *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	struct vimc_cap_device *vcap = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	/* Do not change the format while stream is on */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	if (vb2_is_busy(&vcap->queue))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	ret = vimc_cap_try_fmt_vid_cap(file, priv, f);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	dev_dbg(vcap->ved.dev, "%s: format update: "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		"old:%dx%d (0x%x, %d, %d, %d, %d) "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		"new:%dx%d (0x%x, %d, %d, %d, %d)\n", vcap->vdev.name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		/* old */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		vcap->format.width, vcap->format.height,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		vcap->format.pixelformat, vcap->format.colorspace,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		vcap->format.quantization, vcap->format.xfer_func,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		vcap->format.ycbcr_enc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		/* new */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		f->fmt.pix.width, f->fmt.pix.height,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		f->fmt.pix.pixelformat,	f->fmt.pix.colorspace,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 		f->fmt.pix.quantization, f->fmt.pix.xfer_func,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		f->fmt.pix.ycbcr_enc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	vcap->format = f->fmt.pix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static int vimc_cap_enum_fmt_vid_cap(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 				     struct v4l2_fmtdesc *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	const struct vimc_pix_map *vpix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	if (f->mbus_code) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		if (f->index > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		vpix = vimc_pix_map_by_code(f->mbus_code);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		vpix = vimc_pix_map_by_index(f->index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	if (!vpix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	f->pixelformat = vpix->pixelformat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static int vimc_cap_enum_framesizes(struct file *file, void *fh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 				    struct v4l2_frmsizeenum *fsize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	const struct vimc_pix_map *vpix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	if (fsize->index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	/* Only accept code in the pix map table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	vpix = vimc_pix_map_by_code(fsize->pixel_format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	if (!vpix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	fsize->stepwise.min_width = VIMC_FRAME_MIN_WIDTH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	fsize->stepwise.max_width = VIMC_FRAME_MAX_WIDTH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	fsize->stepwise.min_height = VIMC_FRAME_MIN_HEIGHT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	fsize->stepwise.max_height = VIMC_FRAME_MAX_HEIGHT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	fsize->stepwise.step_width = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	fsize->stepwise.step_height = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) static const struct v4l2_file_operations vimc_cap_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	.open		= v4l2_fh_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	.release	= vb2_fop_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	.read           = vb2_fop_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	.poll		= vb2_fop_poll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	.unlocked_ioctl = video_ioctl2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	.mmap           = vb2_fop_mmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) static const struct v4l2_ioctl_ops vimc_cap_ioctl_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	.vidioc_querycap = vimc_cap_querycap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	.vidioc_g_fmt_vid_cap = vimc_cap_g_fmt_vid_cap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	.vidioc_s_fmt_vid_cap = vimc_cap_s_fmt_vid_cap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	.vidioc_try_fmt_vid_cap = vimc_cap_try_fmt_vid_cap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	.vidioc_enum_fmt_vid_cap = vimc_cap_enum_fmt_vid_cap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	.vidioc_enum_framesizes = vimc_cap_enum_framesizes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	.vidioc_reqbufs = vb2_ioctl_reqbufs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	.vidioc_create_bufs = vb2_ioctl_create_bufs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	.vidioc_querybuf = vb2_ioctl_querybuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	.vidioc_qbuf = vb2_ioctl_qbuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	.vidioc_dqbuf = vb2_ioctl_dqbuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	.vidioc_expbuf = vb2_ioctl_expbuf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	.vidioc_streamon = vb2_ioctl_streamon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	.vidioc_streamoff = vb2_ioctl_streamoff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) static void vimc_cap_return_all_buffers(struct vimc_cap_device *vcap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 					enum vb2_buffer_state state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	struct vimc_cap_buffer *vbuf, *node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	spin_lock(&vcap->qlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	list_for_each_entry_safe(vbuf, node, &vcap->buf_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		list_del(&vbuf->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 		vb2_buffer_done(&vbuf->vb2.vb2_buf, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	spin_unlock(&vcap->qlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) static int vimc_cap_start_streaming(struct vb2_queue *vq, unsigned int count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	struct vimc_cap_device *vcap = vb2_get_drv_priv(vq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	struct media_entity *entity = &vcap->vdev.entity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	vcap->sequence = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	/* Start the media pipeline */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	ret = media_pipeline_start(entity, &vcap->stream.pipe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	ret = vimc_streamer_s_stream(&vcap->stream, &vcap->ved, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		media_pipeline_stop(entity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 		vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_QUEUED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)  * Stop the stream engine. Any remaining buffers in the stream queue are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)  * dequeued and passed on to the vb2 framework marked as STATE_ERROR.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) static void vimc_cap_stop_streaming(struct vb2_queue *vq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	struct vimc_cap_device *vcap = vb2_get_drv_priv(vq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	vimc_streamer_s_stream(&vcap->stream, &vcap->ved, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	/* Stop the media pipeline */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	media_pipeline_stop(&vcap->vdev.entity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	/* Release all active buffers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	vimc_cap_return_all_buffers(vcap, VB2_BUF_STATE_ERROR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static void vimc_cap_buf_queue(struct vb2_buffer *vb2_buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	struct vimc_cap_device *vcap = vb2_get_drv_priv(vb2_buf->vb2_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	struct vimc_cap_buffer *buf = container_of(vb2_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 						   struct vimc_cap_buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 						   vb2.vb2_buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	spin_lock(&vcap->qlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	list_add_tail(&buf->list, &vcap->buf_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	spin_unlock(&vcap->qlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) static int vimc_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 				unsigned int *nplanes, unsigned int sizes[],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 				struct device *alloc_devs[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	struct vimc_cap_device *vcap = vb2_get_drv_priv(vq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	if (*nplanes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		return sizes[0] < vcap->format.sizeimage ? -EINVAL : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	/* We don't support multiplanes for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	*nplanes = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	sizes[0] = vcap->format.sizeimage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static int vimc_cap_buffer_prepare(struct vb2_buffer *vb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	struct vimc_cap_device *vcap = vb2_get_drv_priv(vb->vb2_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	unsigned long size = vcap->format.sizeimage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	if (vb2_plane_size(vb, 0) < size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 		dev_err(vcap->ved.dev, "%s: buffer too small (%lu < %lu)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 			vcap->vdev.name, vb2_plane_size(vb, 0), size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) static const struct vb2_ops vimc_cap_qops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	.start_streaming	= vimc_cap_start_streaming,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	.stop_streaming		= vimc_cap_stop_streaming,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	.buf_queue		= vimc_cap_buf_queue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	.queue_setup		= vimc_cap_queue_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	.buf_prepare		= vimc_cap_buffer_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	 * Since q->lock is set we can use the standard
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	 * vb2_ops_wait_prepare/finish helper functions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	.wait_prepare		= vb2_ops_wait_prepare,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	.wait_finish		= vb2_ops_wait_finish,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) static const struct media_entity_operations vimc_cap_mops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	.link_validate		= vimc_vdev_link_validate,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) static void vimc_cap_release(struct vimc_ent_device *ved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	struct vimc_cap_device *vcap =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		container_of(ved, struct vimc_cap_device, ved);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	media_entity_cleanup(vcap->ved.ent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	kfree(vcap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) static void vimc_cap_unregister(struct vimc_ent_device *ved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	struct vimc_cap_device *vcap =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		container_of(ved, struct vimc_cap_device, ved);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	vb2_video_unregister_device(&vcap->vdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) static void *vimc_cap_process_frame(struct vimc_ent_device *ved,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 				    const void *frame)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 						    ved);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 	struct vimc_cap_buffer *vimc_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	void *vbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	spin_lock(&vcap->qlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 	/* Get the first entry of the list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	vimc_buf = list_first_entry_or_null(&vcap->buf_list,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 					    typeof(*vimc_buf), list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	if (!vimc_buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 		spin_unlock(&vcap->qlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 		return ERR_PTR(-EAGAIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	/* Remove this entry from the list */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	list_del(&vimc_buf->list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	spin_unlock(&vcap->qlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	/* Fill the buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 	vimc_buf->vb2.vb2_buf.timestamp = ktime_get_ns();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	vimc_buf->vb2.sequence = vcap->sequence++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	vimc_buf->vb2.field = vcap->format.field;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 	memcpy(vbuf, frame, vcap->format.sizeimage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 	/* Set it as ready */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 	vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 			      vcap->format.sizeimage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 	vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) static struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 					    const char *vcfg_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 	struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 	const struct vimc_pix_map *vpix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 	struct vimc_cap_device *vcap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 	struct video_device *vdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 	struct vb2_queue *q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 	/* Allocate the vimc_cap_device struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 	vcap = kzalloc(sizeof(*vcap), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 	if (!vcap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 		return ERR_PTR(-ENOMEM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 	/* Initialize the media entity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 	vcap->vdev.entity.name = vcfg_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 	vcap->vdev.entity.function = MEDIA_ENT_F_IO_V4L;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 	vcap->pad.flags = MEDIA_PAD_FL_SINK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 	ret = media_entity_pads_init(&vcap->vdev.entity,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 				     1, &vcap->pad);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 		goto err_free_vcap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	/* Initialize the lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 	mutex_init(&vcap->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 	/* Initialize the vb2 queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 	q = &vcap->queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 	q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_USERPTR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 	q->drv_priv = vcap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 	q->buf_struct_size = sizeof(struct vimc_cap_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 	q->ops = &vimc_cap_qops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 	q->mem_ops = &vb2_vmalloc_memops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 	q->min_buffers_needed = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 	q->lock = &vcap->lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 	ret = vb2_queue_init(q);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 		dev_err(vimc->mdev.dev, "%s: vb2 queue init failed (err=%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 			vcfg_name, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 		goto err_clean_m_ent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 	/* Initialize buffer list and its lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 	INIT_LIST_HEAD(&vcap->buf_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 	spin_lock_init(&vcap->qlock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 	/* Set default frame format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 	vcap->format = fmt_default;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 	vpix = vimc_pix_map_by_pixelformat(vcap->format.pixelformat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 	vcap->format.bytesperline = vcap->format.width * vpix->bpp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 	vcap->format.sizeimage = vcap->format.bytesperline *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 				 vcap->format.height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 	/* Fill the vimc_ent_device struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 	vcap->ved.ent = &vcap->vdev.entity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 	vcap->ved.process_frame = vimc_cap_process_frame;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 	vcap->ved.vdev_get_format = vimc_cap_get_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 	vcap->ved.dev = vimc->mdev.dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 	/* Initialize the video_device struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 	vdev = &vcap->vdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) 	vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 			  | V4L2_CAP_IO_MC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) 	vdev->entity.ops = &vimc_cap_mops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) 	vdev->release = video_device_release_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) 	vdev->fops = &vimc_cap_fops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) 	vdev->ioctl_ops = &vimc_cap_ioctl_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 	vdev->lock = &vcap->lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) 	vdev->queue = q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) 	vdev->v4l2_dev = v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) 	vdev->vfl_dir = VFL_DIR_RX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) 	strscpy(vdev->name, vcfg_name, sizeof(vdev->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) 	video_set_drvdata(vdev, &vcap->ved);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) 	/* Register the video_device with the v4l2 and the media framework */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) 		dev_err(vimc->mdev.dev, "%s: video register failed (err=%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) 			vcap->vdev.name, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 		goto err_clean_m_ent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) 	return &vcap->ved;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) err_clean_m_ent:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) 	media_entity_cleanup(&vcap->vdev.entity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) err_free_vcap:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) 	kfree(vcap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 	return ERR_PTR(ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) struct vimc_ent_type vimc_cap_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) 	.add = vimc_cap_add,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 	.unregister = vimc_cap_unregister,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) 	.release = vimc_cap_release
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) };