From 49cb6b046da812d9c1d1f8c958b741126ee4eece Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Sat, 25 Apr 2009 13:29:01 -0300 Subject: [PATCH] V4L/DVB (11715): gspca - main: Set the number of packets per ISOC message. The number of packets per isochronous message may now be set by the subdrivers (default value 32). Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/gspca.c | 6 +++--- drivers/media/video/gspca/gspca.h | 4 ++-- drivers/media/video/gspca/sonixb.c | 2 ++ drivers/media/video/gspca/sonixj.c | 1 + drivers/media/video/gspca/vc032x.c | 14 +++++++++++++- 5 files changed, 21 insertions(+), 6 deletions(-) diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index ebeae6bdacc8..ae0e14033d66 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -513,9 +513,9 @@ static int create_urbs(struct gspca_dev *gspca_dev, /* See paragraph 5.9 / table 5-11 of the usb 2.0 spec. */ psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); - npkt = ISO_MAX_SIZE / psize; - if (npkt > ISO_MAX_PKT) - npkt = ISO_MAX_PKT; + npkt = gspca_dev->cam.npkt; + if (npkt == 0) + npkt = 32; /* default value */ bsize = psize * npkt; PDEBUG(D_STREAM, "isoc %d pkts size %d = bsize:%d", diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h index 85bb0feddd10..bd1faff88644 100644 --- a/drivers/media/video/gspca/gspca.h +++ b/drivers/media/video/gspca/gspca.h @@ -44,8 +44,6 @@ extern int gspca_debug; #define GSPCA_MAX_FRAMES 16 /* maximum number of video frame buffers */ /* image transfers */ #define MAX_NURBS 4 /* max number of URBs */ -#define ISO_MAX_PKT 32 /* max number of packets in an ISOC transfer */ -#define ISO_MAX_SIZE 0x8000 /* max size of one URB buffer (32 Kb) */ /* device information - set at probe time */ struct cam { @@ -57,6 +55,8 @@ struct cam { * - when 0 and bulk_size != 0 means * 1 URB and submit done by subdriver */ u8 bulk; /* image transfer by 0:isoc / 1:bulk */ + u8 npkt; /* number of packets in an ISOC message + * 0 is the default value: 32 packets */ u32 input_flags; /* value for ENUM_INPUT status flags */ }; diff --git a/drivers/media/video/gspca/sonixb.c b/drivers/media/video/gspca/sonixb.c index 153d0a91d4b5..cf3af8de6e97 100644 --- a/drivers/media/video/gspca/sonixb.c +++ b/drivers/media/video/gspca/sonixb.c @@ -877,6 +877,8 @@ static int sd_config(struct gspca_dev *gspca_dev, cam->cam_mode = sif_mode; cam->nmodes = ARRAY_SIZE(sif_mode); } + cam->npkt = 36; /* 36 packets per ISOC message */ + sd->brightness = BRIGHTNESS_DEF; sd->gain = GAIN_DEF; sd->exposure = EXPOSURE_DEF; diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c index c72e19d3ac37..e58ac891b208 100644 --- a/drivers/media/video/gspca/sonixj.c +++ b/drivers/media/video/gspca/sonixj.c @@ -1280,6 +1280,7 @@ static int sd_config(struct gspca_dev *gspca_dev, cam = &gspca_dev->cam; cam->cam_mode = vga_mode; cam->nmodes = ARRAY_SIZE(vga_mode); + cam->npkt = 24; /* 24 packets per ISOC message */ sd->bridge = id->driver_info >> 16; sd->sensor = id->driver_info >> 8; diff --git a/drivers/media/video/gspca/vc032x.c b/drivers/media/video/gspca/vc032x.c index e4e933c400bc..30872cd047cc 100644 --- a/drivers/media/video/gspca/vc032x.c +++ b/drivers/media/video/gspca/vc032x.c @@ -42,7 +42,7 @@ struct sd { char bridge; #define BRIDGE_VC0321 0 #define BRIDGE_VC0323 1 - char sensor; + u8 sensor; #define SENSOR_HV7131R 0 #define SENSOR_MI0360 1 #define SENSOR_MI1310_SOC 2 @@ -2453,6 +2453,17 @@ static int sd_config(struct gspca_dev *gspca_dev, struct usb_device *dev = gspca_dev->dev; struct cam *cam; int sensor; + static u8 npkt[] = { /* number of packets per ISOC message */ + 64, /* HV7131R 0 */ + 32, /* MI0360 1 */ + 32, /* MI1310_SOC 2 */ + 64, /* MI1320 3 */ + 128, /* MI1320_SOC 4 */ + 32, /* OV7660 5 */ + 64, /* OV7670 6 */ + 128, /* PO1200 7 */ + 128, /* PO3130NC 8 */ + }; cam = &gspca_dev->cam; sd->bridge = id->driver_info; @@ -2515,6 +2526,7 @@ static int sd_config(struct gspca_dev *gspca_dev, break; } } + cam->npkt = npkt[sd->sensor]; sd->hflip = HFLIP_DEF; sd->vflip = VFLIP_DEF; -- 2.11.0