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From:   Corentin Labbe <clabbe@baylibre.com>
To:     gregkh@linuxfoundation.org, laurent.pinchart@skynet.be,
        mchehab@kernel.org
Cc:     devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
        linux-media@vger.kernel.org, Corentin Labbe <clabbe@baylibre.com>
Subject: [PATCH RFT/RFC 42/49] staging: media: zoran: remove framebuffer support
Date:   Mon, 21 Sep 2020 10:20:17 +0000
Message-Id: <1600683624-5863-43-git-send-email-clabbe@baylibre.com>
In-Reply-To: <1600683624-5863-1-git-send-email-clabbe@baylibre.com>
References: <1600683624-5863-1-git-send-email-clabbe@baylibre.com>
Precedence: bulk

The framebuffer support is obsolete, so let's reduce code size.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
 drivers/staging/media/zoran/zoran.h        |  4 -
 drivers/staging/media/zoran/zoran_card.c   |  6 --
 drivers/staging/media/zoran/zoran_driver.c | 85 ----------------------
 3 files changed, 95 deletions(-)

diff --git a/drivers/staging/media/zoran/zoran.h b/drivers/staging/media/zoran/zoran.h
index 294e52d78e1b..0246635e0eac 100644
--- a/drivers/staging/media/zoran/zoran.h
+++ b/drivers/staging/media/zoran/zoran.h
@@ -299,10 +299,6 @@ struct zoran {
 
 	/* Current buffer params */
 	unsigned int buffer_size;
-	void *vbuf_base;
-	int vbuf_height, vbuf_width;
-	int vbuf_depth;
-	int vbuf_bytesperline;
 
 	wait_queue_head_t v4l_capq;
 
diff --git a/drivers/staging/media/zoran/zoran_card.c b/drivers/staging/media/zoran/zoran_card.c
index ab16a70a7451..530dd326ad94 100644
--- a/drivers/staging/media/zoran/zoran_card.c
+++ b/drivers/staging/media/zoran/zoran_card.c
@@ -895,12 +895,6 @@ static int zr36057_init(struct zoran *zr)
 	zr->jpg_buffers.allocated = 0;
 	zr->v4l_buffers.allocated = 0;
 
-	zr->vbuf_base = (void *)vidmem;
-	zr->vbuf_width = 0;
-	zr->vbuf_height = 0;
-	zr->vbuf_depth = 0;
-	zr->vbuf_bytesperline = 0;
-
 	/* Avoid nonsense settings from user for default input/norm */
 	if (default_norm < 0 || default_norm > 2)
 		default_norm = 0;
diff --git a/drivers/staging/media/zoran/zoran_driver.c b/drivers/staging/media/zoran/zoran_driver.c
index 1efec2edd72f..0b4bfc184b57 100644
--- a/drivers/staging/media/zoran/zoran_driver.c
+++ b/drivers/staging/media/zoran/zoran_driver.c
@@ -881,48 +881,6 @@ static int zoran_close(struct file *file)
 	return 0;
 }
 
-static int setup_fbuffer(struct zoran_fh *fh, void *base, const struct zoran_format *fmt,
-			 int width, int height, int bytesperline)
-{
-	struct zoran *zr = fh->zr;
-
-	/* (Ronald) v4l/v4l2 guidelines */
-	if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
-		return -EPERM;
-
-	/*
-	 * Don't allow frame buffer overlay if PCI or AGP is buggy, or on
-	   ALi Magik (that needs very low latency while the card needs a
-	   higher value always)
-	 */
-
-	if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
-		return -ENXIO;
-
-	/* we need a bytesperline value, even if not given */
-	if (!bytesperline)
-		bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
-
-	if (height <= 0 || width <= 0 || bytesperline <= 0) {
-		pci_err(zr->pci_dev, "%s - invalid height/width/bpl value (%d|%d|%d)\n",
-			__func__, width, height, bytesperline);
-		return -EINVAL;
-	}
-	if (bytesperline & 3) {
-		pci_err(zr->pci_dev, "%s - bytesperline (%d) must be 4-byte aligned\n",
-			__func__, bytesperline);
-		return -EINVAL;
-	}
-
-	zr->vbuf_base = (void *)((unsigned long)base & ~3);
-	zr->vbuf_height = height;
-	zr->vbuf_width = width;
-	zr->vbuf_depth = fmt->depth;
-	zr->vbuf_bytesperline = bytesperline;
-
-	return 0;
-}
-
 /* get the status of a buffer in the clients buffer queue */
 static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
 				    struct v4l2_buffer *buf, int num)
@@ -1388,47 +1346,6 @@ static int zoran_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format
 	return res;
 }
 
-static int zoran_g_fbuf(struct file *file, void *__fh,
-			struct v4l2_framebuffer *fb)
-{
-	struct zoran *zr = video_drvdata(file);
-
-	memset(fb, 0, sizeof(*fb));
-	fb->base = zr->vbuf_base;
-	fb->fmt.width = zr->vbuf_width;
-	fb->fmt.height = zr->vbuf_height;
-	fb->fmt.bytesperline = zr->vbuf_bytesperline;
-	fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
-	fb->fmt.field = V4L2_FIELD_INTERLACED;
-	fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
-
-	return 0;
-}
-
-static int zoran_s_fbuf(struct file *file, void *__fh,
-			const struct v4l2_framebuffer *fb)
-{
-	struct zoran *zr = video_drvdata(file);
-	struct zoran_fh *fh = __fh;
-	int i, res = 0;
-	__le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
-
-	for (i = 0; i < NUM_FORMATS; i++)
-		if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
-			break;
-	if (i == NUM_FORMATS) {
-		pci_err(zr->pci_dev, "VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
-			fb->fmt.pixelformat,
-			(char *)&printformat);
-		return -EINVAL;
-	}
-
-	res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
-			    fb->fmt.height, fb->fmt.bytesperline);
-
-	return res;
-}
-
 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
 
 static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
@@ -2218,8 +2135,6 @@ static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
 /*	.vidioc_enum_output		    = zoran_enum_output,
 	.vidioc_g_output		    = zoran_g_output,
 	.vidioc_s_output		    = zoran_s_output,*/
-	.vidioc_g_fbuf			    = zoran_g_fbuf,
-	.vidioc_s_fbuf			    = zoran_s_fbuf,
 	.vidioc_g_std			    = zoran_g_std,
 	.vidioc_s_std			    = zoran_s_std,
 	.vidioc_g_jpegcomp		    = zoran_g_jpegcomp,
-- 
2.26.2