diff options
| author | Johan Hedberg <johan.hedberg@intel.com> | 2012-02-16 14:23:04 +0200 |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2012-02-16 14:25:34 +0200 |
| commit | 46479e698530b8197d601a23317b7c7654195338 (patch) | |
| tree | 710b2758ecd7d8a6ada37724c5d4c8027d5f358f /drivers/media/video/gspca/sn9c20x.c | |
| parent | 7b99b659d90c5d421cb1867295c78a4c0c030734 (diff) | |
| parent | ca994a36f585432458ead9133fcfe05440edbb7b (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next.git
Conflicts:
include/net/bluetooth/l2cap.h
net/bluetooth/hci_conn.c
net/bluetooth/l2cap_core.c
Diffstat (limited to 'drivers/media/video/gspca/sn9c20x.c')
| -rw-r--r-- | drivers/media/video/gspca/sn9c20x.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c index 33cabc342dc..9e198b45c3c 100644 --- a/drivers/media/video/gspca/sn9c20x.c +++ b/drivers/media/video/gspca/sn9c20x.c @@ -2048,6 +2048,7 @@ static int sd_config(struct gspca_dev *gspca_dev, struct cam *cam; cam = &gspca_dev->cam; + cam->needs_full_bandwidth = 1; sd->sensor = (id->driver_info >> 8) & 0xff; sd->i2c_addr = id->driver_info & 0xff; @@ -2233,6 +2234,42 @@ static void configure_sensor_output(struct gspca_dev *gspca_dev, int mode) } } +static int sd_isoc_init(struct gspca_dev *gspca_dev) +{ + struct usb_interface *intf; + u32 flags = gspca_dev->cam.cam_mode[(int)gspca_dev->curr_mode].priv; + + /* + * When using the SN9C20X_I420 fmt the sn9c20x needs more bandwidth + * than our regular bandwidth calculations reserve, so we force the + * use of a specific altsetting when using the SN9C20X_I420 fmt. + */ + if (!(flags & (MODE_RAW | MODE_JPEG))) { + intf = usb_ifnum_to_if(gspca_dev->dev, gspca_dev->iface); + + if (intf->num_altsetting != 9) { + pr_warn("sn9c20x camera with unknown number of alt " + "settings (%d), please report!\n", + intf->num_altsetting); + gspca_dev->alt = intf->num_altsetting; + return 0; + } + + switch (gspca_dev->width) { + case 160: /* 160x120 */ + gspca_dev->alt = 2; + break; + case 320: /* 320x240 */ + gspca_dev->alt = 6; + break; + default: /* >= 640x480 */ + gspca_dev->alt = 9; + } + } + + return 0; +} + #define HW_WIN(mode, hstart, vstart) \ ((const u8 []){hstart, 0, vstart, 0, \ (mode & MODE_SXGA ? 1280 >> 4 : 640 >> 4), \ @@ -2473,6 +2510,7 @@ static const struct sd_desc sd_desc = { .nctrls = ARRAY_SIZE(sd_ctrls), .config = sd_config, .init = sd_init, + .isoc_init = sd_isoc_init, .start = sd_start, .stopN = sd_stopN, .pkt_scan = sd_pkt_scan, |