V4L/DVB: gspca_spca561: Add support for camera button

gspca_spca561: Add support for camera button

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/spca561.c b/drivers/media/video/gspca/spca561.c
index 6346ddc67967..7bb2355005dc 100644
--- a/drivers/media/video/gspca/spca561.c
+++ b/drivers/media/video/gspca/spca561.c
@@ -22,6 +22,7 @@
 
 #define MODULE_NAME "spca561"
 
+#include <linux/input.h>
 #include "gspca.h"
 
 MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
@@ -778,6 +779,23 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
         switch (*data++) {                      /* sequence number */
         case 0:                                 /* start of frame */
                 gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
+
+                /* This should never happen */
+                if (len < 2) {
+                        PDEBUG(D_ERR, "Short SOF packet, ignoring");
+                        gspca_dev->last_packet_type = DISCARD_PACKET;
+                        return;
+                }
+
+#ifdef CONFIG_INPUT
+                if (data[0] & 0x20) {
+                        input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
+                        input_sync(gspca_dev->input_dev);
+                        input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
+                        input_sync(gspca_dev->input_dev);
+                }
+#endif
+
                 if (data[1] & 0x10) {
                         /* compressed bayer */
                         gspca_frame_add(gspca_dev, FIRST_PACKET, data, len);
@@ -1019,6 +1037,9 @@ static const struct sd_desc sd_desc_12a = {
         .start = sd_start_12a,
         .stopN = sd_stopN,
         .pkt_scan = sd_pkt_scan,
+#ifdef CONFIG_INPUT
+        .other_input = 1,
+#endif
 };
 static const struct sd_desc sd_desc_72a = {
         .name = MODULE_NAME,
@@ -1030,6 +1051,9 @@ static const struct sd_desc sd_desc_72a = {
         .stopN = sd_stopN,
         .pkt_scan = sd_pkt_scan,
         .dq_callback = do_autogain,
+#ifdef CONFIG_INPUT
+        .other_input = 1,
+#endif
 };
 static const struct sd_desc *sd_desc[2] = {
         &sd_desc_12a,