diff options
Diffstat (limited to 'drivers/media/usb/gspca/ov519.c')
| -rw-r--r-- | drivers/media/usb/gspca/ov519.c | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/drivers/media/usb/gspca/ov519.c b/drivers/media/usb/gspca/ov519.c index a3958ee86816..8937d79fd176 100644 --- a/drivers/media/usb/gspca/ov519.c +++ b/drivers/media/usb/gspca/ov519.c @@ -75,6 +75,8 @@ struct sd { struct v4l2_ctrl *brightness; }; + u8 revision; + u8 packet_nr; char bridge; @@ -3080,8 +3082,8 @@ static void ov518_configure(struct gspca_dev *gspca_dev) }; /* First 5 bits of custom ID reg are a revision ID on OV518 */ - PDEBUG(D_PROBE, "Device revision %d", - 0x1f & reg_r(sd, R51x_SYS_CUST_ID)); + sd->revision = reg_r(sd, R51x_SYS_CUST_ID) & 0x1f; + PDEBUG(D_PROBE, "Device revision %d", sd->revision); write_regvals(sd, init_518, ARRAY_SIZE(init_518)); @@ -3657,7 +3659,11 @@ static void ov518_mode_init_regs(struct sd *sd) reg_w(sd, 0x2f, 0x80); /******** Set the framerate ********/ - sd->clockdiv = 1; + if (sd->bridge == BRIDGE_OV518PLUS && sd->revision == 0 && + sd->sensor == SEN_OV7620AE) + sd->clockdiv = 0; + else + sd->clockdiv = 1; /* Mode independent, but framerate dependent, regs */ /* 0x51: Clock divider; Only works on some cams which use 2 crystals */ @@ -3668,12 +3674,24 @@ static void ov518_mode_init_regs(struct sd *sd) if (sd->bridge == BRIDGE_OV518PLUS) { switch (sd->sensor) { case SEN_OV7620AE: - if (sd->gspca_dev.width == 320) { - reg_w(sd, 0x20, 0x00); - reg_w(sd, 0x21, 0x19); - } else { + /* + * HdG: 640x480 needs special handling on device + * revision 2, we check for device revison > 0 to + * avoid regressions, as we don't know the correct + * thing todo for revision 1. + * + * Also this likely means we don't need to + * differentiate between the OV7620 and OV7620AE, + * earlier testing hitting this same problem likely + * happened to be with revision < 2 cams using an + * OV7620 and revision 2 cams using an OV7620AE. + */ + if (sd->revision > 0 && sd->gspca_dev.width == 640) { reg_w(sd, 0x20, 0x60); reg_w(sd, 0x21, 0x1f); + } else { + reg_w(sd, 0x20, 0x00); + reg_w(sd, 0x21, 0x19); } break; case SEN_OV7620: |