Initial import

1 files changed, 131 insertions, 0 deletions

diff --git a/drivers/media/pci/cx18/cx18-controls.c b/drivers/media/pci/cx18/cx18-controls.c
new file mode 100644
index 000000000..4aeb7c6b8
--- /dev/null
+++ b/drivers/media/pci/cx18/cx18-controls.c
@@ -0,0 +1,131 @@
+/*
+ *  cx18 ioctl control functions
+ *
+ *  Derived from ivtv-controls.c
+ *
+ *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307  USA
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include "cx18-driver.h"
+#include "cx18-cards.h"
+#include "cx18-ioctl.h"
+#include "cx18-audio.h"
+#include "cx18-mailbox.h"
+#include "cx18-controls.h"
+
+static int cx18_s_stream_vbi_fmt(struct cx2341x_handler *cxhdl, u32 fmt)
+{
+	struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl);
+	int type = cxhdl->stream_type->val;
+
+	if (atomic_read(&cx->ana_capturing) > 0)
+		return -EBUSY;
+
+	if (fmt != V4L2_MPEG_STREAM_VBI_FMT_IVTV ||
+	    !(type == V4L2_MPEG_STREAM_TYPE_MPEG2_PS ||
+	      type == V4L2_MPEG_STREAM_TYPE_MPEG2_DVD ||
+	      type == V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD)) {
+		/* Only IVTV fmt VBI insertion & only MPEG-2 PS type streams */
+		cx->vbi.insert_mpeg = V4L2_MPEG_STREAM_VBI_FMT_NONE;
+		CX18_DEBUG_INFO("disabled insertion of sliced VBI data into "
+				"the MPEG stream\n");
+		return 0;
+	}
+
+	/* Allocate sliced VBI buffers if needed. */
+	if (cx->vbi.sliced_mpeg_data[0] == NULL) {
+		int i;
+
+		for (i = 0; i < CX18_VBI_FRAMES; i++) {
+			cx->vbi.sliced_mpeg_data[i] =
+			       kmalloc(CX18_SLICED_MPEG_DATA_BUFSZ, GFP_KERNEL);
+			if (cx->vbi.sliced_mpeg_data[i] == NULL) {
+				while (--i >= 0) {
+					kfree(cx->vbi.sliced_mpeg_data[i]);
+					cx->vbi.sliced_mpeg_data[i] = NULL;
+				}
+				cx->vbi.insert_mpeg =
+						  V4L2_MPEG_STREAM_VBI_FMT_NONE;
+				CX18_WARN("Unable to allocate buffers for "
+					  "sliced VBI data insertion\n");
+				return -ENOMEM;
+			}
+		}
+	}
+
+	cx->vbi.insert_mpeg = fmt;
+	CX18_DEBUG_INFO("enabled insertion of sliced VBI data into the MPEG PS,"
+			"when sliced VBI is enabled\n");
+
+	/*
+	 * If our current settings have no lines set for capture, store a valid,
+	 * default set of service lines to capture, in our current settings.
+	 */
+	if (cx18_get_service_set(cx->vbi.sliced_in) == 0) {
+		if (cx->is_60hz)
+			cx->vbi.sliced_in->service_set =
+							V4L2_SLICED_CAPTION_525;
+		else
+			cx->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625;
+		cx18_expand_service_set(cx->vbi.sliced_in, cx->is_50hz);
+	}
+	return 0;
+}
+
+static int cx18_s_video_encoding(struct cx2341x_handler *cxhdl, u32 val)
+{
+	struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl);
+	int is_mpeg1 = val == V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
+	struct v4l2_mbus_framefmt fmt;
+
+	/* fix videodecoder resolution */
+	fmt.width = cxhdl->width / (is_mpeg1 ? 2 : 1);
+	fmt.height = cxhdl->height;
+	fmt.code = MEDIA_BUS_FMT_FIXED;
+	v4l2_subdev_call(cx->sd_av, video, s_mbus_fmt, &fmt);
+	return 0;
+}
+
+static int cx18_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx)
+{
+	static const u32 freqs[3] = { 44100, 48000, 32000 };
+	struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl);
+
+	/* The audio clock of the digitizer must match the codec sample
+	   rate otherwise you get some very strange effects. */
+	if (idx < ARRAY_SIZE(freqs))
+		cx18_call_all(cx, audio, s_clock_freq, freqs[idx]);
+	return 0;
+}
+
+static int cx18_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val)
+{
+	struct cx18 *cx = container_of(cxhdl, struct cx18, cxhdl);
+
+	cx->dualwatch_stereo_mode = val;
+	return 0;
+}
+
+struct cx2341x_handler_ops cx18_cxhdl_ops = {
+	.s_audio_mode = cx18_s_audio_mode,
+	.s_audio_sampling_freq = cx18_s_audio_sampling_freq,
+	.s_video_encoding = cx18_s_video_encoding,
+	.s_stream_vbi_fmt = cx18_s_stream_vbi_fmt,
+};