From 917ba6b0b6707b6e6ca257461ceadff1235e8b2c Mon Sep 17 00:00:00 2001 From: Frank Schaefer Date: Fri, 25 Jul 2014 14:48:56 -0300 Subject: [PATCH] [media] em28xx-v4l: get rid of struct em28xx_fh MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit struct em28xx_fh isn't needed anymore because the only used field which is left is struct v4l2_fh fh. Use struct v4l2_fh directly and remvove struct em28xx_fh. Signed-off-by: Frank Schäfer Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/em28xx/em28xx-video.c | 83 +++++++++---------------- drivers/media/usb/em28xx/em28xx.h | 7 --- 2 files changed, 29 insertions(+), 61 deletions(-) diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index 3f8b5aa7669a..4eb4a6ac04f7 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -1227,8 +1227,7 @@ static void scale_to_size(struct em28xx *dev, static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); struct em28xx_v4l2 *v4l2 = dev->v4l2; f->fmt.pix.width = v4l2->width; @@ -1261,8 +1260,7 @@ static struct em28xx_fmt *format_by_fourcc(unsigned int fourcc) static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); struct em28xx_v4l2 *v4l2 = dev->v4l2; unsigned int width = f->fmt.pix.width; unsigned int height = f->fmt.pix.height; @@ -1355,8 +1353,7 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); *norm = dev->v4l2->norm; @@ -1365,8 +1362,7 @@ static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); v4l2_device_call_all(&dev->v4l2->v4l2_dev, 0, video, querystd, norm); @@ -1375,8 +1371,7 @@ static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *norm) static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); struct em28xx_v4l2 *v4l2 = dev->v4l2; struct v4l2_format f; @@ -1408,8 +1403,7 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id norm) static int vidioc_g_parm(struct file *file, void *priv, struct v4l2_streamparm *p) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); struct em28xx_v4l2 *v4l2 = dev->v4l2; int rc = 0; @@ -1427,8 +1421,7 @@ static int vidioc_g_parm(struct file *file, void *priv, static int vidioc_s_parm(struct file *file, void *priv, struct v4l2_streamparm *p) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); p->parm.capture.readbuffers = EM28XX_MIN_BUF; return v4l2_device_call_until_err(&dev->v4l2->v4l2_dev, @@ -1450,8 +1443,7 @@ static const char *iname[] = { static int vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); unsigned int n; n = i->index; @@ -1479,8 +1471,7 @@ static int vidioc_enum_input(struct file *file, void *priv, static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); *i = dev->ctl_input; @@ -1489,8 +1480,7 @@ static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) static int vidioc_s_input(struct file *file, void *priv, unsigned int i) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); if (i >= MAX_EM28XX_INPUT) return -EINVAL; @@ -1503,8 +1493,7 @@ static int vidioc_s_input(struct file *file, void *priv, unsigned int i) static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); switch (a->index) { case EM28XX_AMUX_VIDEO: @@ -1543,8 +1532,7 @@ 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) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); if (a->index >= MAX_EM28XX_INPUT) return -EINVAL; @@ -1563,8 +1551,7 @@ static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); if (0 != t->index) return -EINVAL; @@ -1578,8 +1565,7 @@ static int vidioc_g_tuner(struct file *file, void *priv, static int vidioc_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); if (0 != t->index) return -EINVAL; @@ -1591,8 +1577,7 @@ static int vidioc_s_tuner(struct file *file, void *priv, static int vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); struct em28xx_v4l2 *v4l2 = dev->v4l2; if (0 != f->tuner) @@ -1606,8 +1591,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *f) { struct v4l2_frequency new_freq = *f; - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); struct em28xx_v4l2 *v4l2 = dev->v4l2; if (0 != f->tuner) @@ -1624,8 +1608,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, static int vidioc_g_chip_info(struct file *file, void *priv, struct v4l2_dbg_chip_info *chip) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); if (chip->match.addr > 1) return -EINVAL; @@ -1652,8 +1635,7 @@ static int em28xx_reg_len(int reg) static int vidioc_g_register(struct file *file, void *priv, struct v4l2_dbg_register *reg) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); int ret; if (reg->match.addr > 1) @@ -1693,8 +1675,7 @@ static int vidioc_g_register(struct file *file, void *priv, static int vidioc_s_register(struct file *file, void *priv, const struct v4l2_dbg_register *reg) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); __le16 buf; if (reg->match.addr > 1) @@ -1715,8 +1696,7 @@ static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { struct video_device *vdev = video_devdata(file); - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); struct em28xx_v4l2 *v4l2 = dev->v4l2; strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); @@ -1761,8 +1741,7 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, static int vidioc_enum_framesizes(struct file *file, void *priv, struct v4l2_frmsizeenum *fsize) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); struct em28xx_fmt *fmt; unsigned int maxw = norm_maxw(dev); unsigned int maxh = norm_maxh(dev); @@ -1806,8 +1785,7 @@ static int vidioc_enum_framesizes(struct file *file, void *priv, static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, struct v4l2_format *format) { - struct em28xx_fh *fh = priv; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(file); struct em28xx_v4l2 *v4l2 = dev->v4l2; format->fmt.vbi.samples_per_line = v4l2->vbi_width; @@ -1840,7 +1818,7 @@ static int vidioc_g_fmt_vbi_cap(struct file *file, void *priv, static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) { - struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; + struct em28xx *dev = video_drvdata(file); if (unlikely(t->index > 0)) return -EINVAL; @@ -1855,7 +1833,7 @@ static int radio_g_tuner(struct file *file, void *priv, static int radio_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t) { - struct em28xx *dev = ((struct em28xx_fh *)priv)->dev; + struct em28xx *dev = video_drvdata(file); if (0 != t->index) return -EINVAL; @@ -1890,7 +1868,7 @@ static int em28xx_v4l2_open(struct file *filp) struct em28xx *dev = video_drvdata(filp); struct em28xx_v4l2 *v4l2 = dev->v4l2; enum v4l2_buf_type fh_type = 0; - struct em28xx_fh *fh; + struct v4l2_fh *fh; switch (vdev->vfl_type) { case VFL_TYPE_GRABBER: @@ -1911,15 +1889,13 @@ static int em28xx_v4l2_open(struct file *filp) if (mutex_lock_interruptible(&dev->lock)) return -ERESTARTSYS; - fh = kzalloc(sizeof(struct em28xx_fh), GFP_KERNEL); + fh = kzalloc(sizeof(struct v4l2_fh), GFP_KERNEL); if (!fh) { em28xx_errdev("em28xx-video.c: Out of memory?!\n"); mutex_unlock(&dev->lock); return -ENOMEM; } - v4l2_fh_init(&fh->fh, vdev); - fh->dev = dev; - fh->type = fh_type; + v4l2_fh_init(fh, vdev); filp->private_data = fh; if (v4l2->users == 0) { @@ -1945,7 +1921,7 @@ static int em28xx_v4l2_open(struct file *filp) v4l2->users++; mutex_unlock(&dev->lock); - v4l2_fh_add(&fh->fh); + v4l2_fh_add(fh); return 0; } @@ -2046,8 +2022,7 @@ static int em28xx_v4l2_resume(struct em28xx *dev) */ static int em28xx_v4l2_close(struct file *filp) { - struct em28xx_fh *fh = filp->private_data; - struct em28xx *dev = fh->dev; + struct em28xx *dev = video_drvdata(filp); struct em28xx_v4l2 *v4l2 = dev->v4l2; int errCode; diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h index b4c837d77e5d..4360338e7b31 100644 --- a/drivers/media/usb/em28xx/em28xx.h +++ b/drivers/media/usb/em28xx/em28xx.h @@ -576,13 +576,6 @@ struct em28xx_audio { struct em28xx; -struct em28xx_fh { - struct v4l2_fh fh; - struct em28xx *dev; - - enum v4l2_buf_type type; -}; - enum em28xx_i2c_algo_type { EM28XX_I2C_ALGO_EM28XX = 0, EM28XX_I2C_ALGO_EM2800, -- 2.45.2