[media] gspca - nw80x: Check the bridge from the webcam type

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 78 insertions, 68 deletions

diff --git a/drivers/media/video/gspca/nw80x.c b/drivers/media/video/gspca/nw80x.c
index d2d356e8753..f2adf6f0426 100644
--- a/drivers/media/video/gspca/nw80x.c
+++ b/drivers/media/video/gspca/nw80x.c
@@ -79,75 +79,80 @@ enum webcams {
         NWEBCAMS        /* number of webcams */
 };
 
+static const u8 webcam_chip[NWEBCAMS] = {
+        [Generic800]    = BRIDGE_NW800, /* 06a5:0000
+                                         * Typhoon Webcam 100 USB */
+
+        [SpaceCam]      = BRIDGE_NW800, /* 06a5:d800
+                                * Trust SpaceCam120 or SpaceCam100 PORTABLE */
+
+        [SpaceCam2]     = BRIDGE_NW800, /* 06a5:d800 - pas106
+                        * other Trust SpaceCam120 or SpaceCam100 PORTABLE */
+
+        [Cvideopro]     = BRIDGE_NW802, /* 06a5:d001
+                        * Conceptronic Video Pro 'CVIDEOPRO USB Webcam CCD' */
+
+        [Dlink350c]     = BRIDGE_NW802, /* 06a5:d001
+                                         * D-Link NetQam Pro 250plus */
+
+        [DS3303u]       = BRIDGE_NW801, /* 06a5:d001
+                                * Plustek Opticam 500U or ProLink DS3303u */
+
+        [Kr651us]       = BRIDGE_NW802, /* 06a5:d001
+                                         * Panasonic GP-KR651US */
+
+        [Kritter]       = BRIDGE_NW802, /* 06a5:d001
+                                         * iRez Kritter cam */
+
+        [Mustek300]     = BRIDGE_NW802, /* 055f:d001
+                                         * Mustek Wcam 300 mini */
+
+        [Proscope]      = BRIDGE_NW802, /* 06a5:d001
+                                         * Scalar USB Microscope (ProScope) */
+
+        [Twinkle]       = BRIDGE_NW800, /* 06a5:d800 - hv7121b? (seems pas106)
+                                         * Divio Chicony TwinkleCam
+                                         * DSB-C110 */
+
+        [DvcV6]         = BRIDGE_NW802, /* 0502:d001
+                                         * DVC V6 */
+
+        [P35u]          = BRIDGE_NW801, /* 052b:d001, 06a5:d001 and 06be:d001
+                                         * EZCam Pro p35u */
+
+        [Generic802]    = BRIDGE_NW802,
+};
+/*
+ * other webcams:
+ *      - nw801 046d:d001
+ *              Logitech QuickCam Pro (dark focus ring)
+ *      - nw801 0728:d001
+ *              AVerMedia Camguard
+ *      - nw??? 06a5:d001
+ *              D-Link NetQam Pro 250plus
+ *      - nw800 065a:d800
+ *              Showcam NGS webcam
+ *      - nw??? ????:????
+ *              Sceptre svc300
+ */
+
 /*
- - webcams:
-        - Typhoon Webcam 100 USB (06a5:0000)
-                nw800
-        - Trust SpaceCam120 or SpaceCam100 PORTABLE (06a5:d800)
-                nw801 SpaceCam.init
-                    or trust_space.init if no LED (?)
-        - Divio Chicony TwinkleCam (06a5:d800) ?
-                nw800 Twinkle.init
-        - Plustek Opticam 500U or ProLink DS3303u
-                nw801 DS3303u.init
-        - Logitech QuickCam Pro (dark focus ring) (046d:d001)
-                nw801
-        - EZCam Pro p35u (052b:d001, 06a5:d001 and 06be:d001)
-                nw801 - sensor Sharp IR3Y38M
-        - AVerMedia Camguard (0728:d001)
-                nw801
-        - Panasonic GP-KR651US (06a5:d001)
-                nw802 kr651us.init
-        - iRez Kritter cam
-                nw802 kritter.init
-        - D-link dru-350c cam
-                nw802 d-link-350c.init
-        - The Scope USB Microscope M2 (ProScope)
-                        = Divio ProLink DS3303u WebCam (06a5:d001)
-                        = Scalar USB Microscope M2 (Proscope)
-                nw802 proscope.init
-        - Conceptronic Video Pro 'CVIDEOPRO USB Webcam CCD' (06a5:d001)
-                nw802 cvideopro.init
-        - Mustek Wcam 300 mini
-                nw802 mustek_300_mini.init
-        - D-Link NetQam Pro 250plus (06a5:d001)
-        - Showcam NGS webcam (065a:d800)
-        - sceptre svc300
-        - DSB-C110 (06a5:d800)
-                et31x110
-        - DVC V6 (0502:d001)
-                nw802
- - registers
-      nw800/et31x110      nw801           nw802
-        0000..009e      0000..00a1      0000..009e
-        0200..0211         id              id
-        0300..0302         id              id
-        0400..0406        (inex)        0400..0406
-        0500..0505      0500..0506        (inex)
-        0600..061a      0600..0601      0600..0601
-        0800..0814         id              id
-        1000..109c      1000..10a1      1000..109a
-
-        080c: luma (nw800/nw802)
-        080d: luma (nw801)
-        1004: LUT (?)
-        100b: R gain (0..63)
-        100c: B gain
-        100d: G gain
-        100e: Y gain
-        100f: U gain
-        1010: V gain
-        1019: clock (nw801 - bit 0x08: indoor/outdoor)
-        101b: shutter 1 (0..255)
-        101c: shutter 2
-        1026: BP = gain (nw801)
-        1041, 1052, 1063, 1074: LUT base (nw802)
-        1048, 1059, 106a, 107b: LUT base (nw801)
- - resolutions
-        nw800 352x288
-        nw801/nw802 320x240 - 640x480
-*/
+ * registers
+ *    nw800/et31x110      nw801           nw802
+ *      0000..009e      0000..00a1      0000..009e
+ *      0200..0211         id              id
+ *      0300..0302         id              id
+ *      0400..0406        (inex)        0400..0406
+ *      0500..0505      0500..0506        (inex)
+ *      0600..061a      0600..0601      0600..0601
+ *      0800..0814         id              id
+ *      1000..109c      1000..10a1      1000..109a
+ */
 
+/* resolutions
+ *      nw800: 320x240, 352x288
+ *      nw801/802: 320x240, 640x480
+ */
 static const struct v4l2_pix_format cif_mode[] = {
         {352, 288, V4L2_PIX_FMT_JPGL, V4L2_FIELD_NONE,
                 .bytesperline = 352,
@@ -1769,7 +1774,12 @@ static int sd_config(struct gspca_dev *gspca_dev,
                 if (sd->webcam == Generic800)
                         sd->webcam = P35u;
         }
-        PDEBUG(D_PROBE, "Bridge nw80%d", sd->bridge);
+        if (webcam_chip[sd->webcam] != sd->bridge) {
+                err("Bad webcam type %d for NW80%d", sd->webcam, sd->bridge);
+                gspca_dev->usb_err = -ENODEV;
+                return gspca_dev->usb_err;
+        }
+        PDEBUG(D_PROBE, "Bridge nw80%d - type: %d", sd->bridge, sd->webcam);
 
         if (sd->bridge == BRIDGE_NW800) {
                 gspca_dev->cam.cam_mode = cif_mode;