Revert "[media] media: davinci: vpif_capture: drop unneeded module params"

This patch removes some modprobe parameters, without any reason
or description. I was supposed to not merge this patch, but It
was merged by mistake.

Revert it while nobody provides a good description for such patch.

This reverts commit b952662f272ae43c1583fac4dcda71ef36c33528.

Cc: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

2 files changed, 64 insertions, 1 deletions

diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index e967cf7..d452eaf 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -38,10 +38,32 @@ MODULE_VERSION(VPIF_CAPTURE_VERSION);
 		v4l2_dbg(level, debug, &vpif_obj.v4l2_dev, fmt, ## arg)
 
 static int debug = 1;
+static u32 ch0_numbuffers = 3;
+static u32 ch1_numbuffers = 3;
+static u32 ch0_bufsize = 1920 * 1080 * 2;
+static u32 ch1_bufsize = 720 * 576 * 2;
 
 module_param(debug, int, 0644);
+module_param(ch0_numbuffers, uint, S_IRUGO);
+module_param(ch1_numbuffers, uint, S_IRUGO);
+module_param(ch0_bufsize, uint, S_IRUGO);
+module_param(ch1_bufsize, uint, S_IRUGO);
 
 MODULE_PARM_DESC(debug, "Debug level 0-1");
+MODULE_PARM_DESC(ch2_numbuffers, "Channel0 buffer count (default:3)");
+MODULE_PARM_DESC(ch3_numbuffers, "Channel1 buffer count (default:3)");
+MODULE_PARM_DESC(ch2_bufsize, "Channel0 buffer size (default:1920 x 1080 x 2)");
+MODULE_PARM_DESC(ch3_bufsize, "Channel1 buffer size (default:720 x 576 x 2)");
+
+static struct vpif_config_params config_params = {
+	.min_numbuffers = 3,
+	.numbuffers[0] = 3,
+	.numbuffers[1] = 3,
+	.min_bufsize[0] = 720 * 480 * 2,
+	.min_bufsize[1] = 720 * 480 * 2,
+	.channel_bufsize[0] = 1920 * 1080 * 2,
+	.channel_bufsize[1] = 720 * 576 * 2,
+};
 
 #define VPIF_DRIVER_NAME	"vpif_capture"
 
@@ -587,6 +609,9 @@ static void vpif_config_format(struct channel_obj *ch)
 	vpif_dbg(2, debug, "vpif_config_format\n");
 
 	common->fmt.fmt.pix.field = V4L2_FIELD_ANY;
+	common->fmt.fmt.pix.sizeimage
+	    = config_params.channel_bufsize[ch->channel_id];
+
 	if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER)
 		common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8;
 	else
@@ -1333,9 +1358,36 @@ static struct v4l2_file_operations vpif_fops = {
  */
 static int initialize_vpif(void)
 {
-	int err, i, j;
+	int err = 0, i, j;
 	int free_channel_objects_index;
 
+	/* Default number of buffers should be 3 */
+	if ((ch0_numbuffers > 0) &&
+	    (ch0_numbuffers < config_params.min_numbuffers))
+		ch0_numbuffers = config_params.min_numbuffers;
+	if ((ch1_numbuffers > 0) &&
+	    (ch1_numbuffers < config_params.min_numbuffers))
+		ch1_numbuffers = config_params.min_numbuffers;
+
+	/* Set buffer size to min buffers size if it is invalid */
+	if (ch0_bufsize < config_params.min_bufsize[VPIF_CHANNEL0_VIDEO])
+		ch0_bufsize =
+		    config_params.min_bufsize[VPIF_CHANNEL0_VIDEO];
+	if (ch1_bufsize < config_params.min_bufsize[VPIF_CHANNEL1_VIDEO])
+		ch1_bufsize =
+		    config_params.min_bufsize[VPIF_CHANNEL1_VIDEO];
+
+	config_params.numbuffers[VPIF_CHANNEL0_VIDEO] = ch0_numbuffers;
+	config_params.numbuffers[VPIF_CHANNEL1_VIDEO] = ch1_numbuffers;
+	if (ch0_numbuffers) {
+		config_params.channel_bufsize[VPIF_CHANNEL0_VIDEO]
+		    = ch0_bufsize;
+	}
+	if (ch1_numbuffers) {
+		config_params.channel_bufsize[VPIF_CHANNEL1_VIDEO]
+		    = ch1_bufsize;
+	}
+
 	/* Allocate memory for six channel objects */
 	for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
 		vpif_obj.dev[i] =
diff --git a/drivers/media/platform/davinci/vpif_capture.h b/drivers/media/platform/davinci/vpif_capture.h
index 537076a..4960504 100644
--- a/drivers/media/platform/davinci/vpif_capture.h
+++ b/drivers/media/platform/davinci/vpif_capture.h
@@ -125,5 +125,16 @@ struct vpif_device {
 	struct vpif_capture_config *config;
 };
 
+struct vpif_config_params {
+	u8 min_numbuffers;
+	u8 numbuffers[VPIF_CAPTURE_NUM_CHANNELS];
+	s8 device_type;
+	u32 min_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
+	u32 channel_bufsize[VPIF_CAPTURE_NUM_CHANNELS];
+	u8 default_device[VPIF_CAPTURE_NUM_CHANNELS];
+	u32 video_limit[VPIF_CAPTURE_NUM_CHANNELS];
+	u8 max_device_type;
+};
+
 #endif				/* End of __KERNEL__ */
 #endif				/* VPIF_CAPTURE_H */