[media] gscpa_t613: Add support for the camera button

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

diff --git a/drivers/media/video/gspca/t613.c b/drivers/media/video/gspca/t613.c
index 90f0877eb5991467c0631b6b4d96b4bf4ba6d139..c22d4e810f8d1f1c0eafa5b887bdd186a23a0087 100644 (file)
--- a/drivers/media/video/gspca/t613.c
+++ b/drivers/media/video/gspca/t613.c
@@ -30,6 +30,7 @@
 
 #define MODULE_NAME "t613"
 
+#include <linux/input.h>
 #include <linux/slab.h>
 #include "gspca.h"
 
@@ -57,6 +58,7 @@ struct sd {
        u8 effect;
 
        u8 sensor;
+       u8 button_pressed;
 };
 enum sensors {
        SENSOR_OM6802,
@@ -1095,15 +1097,35 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
                msleep(20);
                reg_w(gspca_dev, 0x0309);
        }
+#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
+       /* If the last button state is pressed, release it now! */
+       if (sd->button_pressed) {
+               input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
+               input_sync(gspca_dev->input_dev);
+               sd->button_pressed = 0;
+       }
+#endif
 }
 
 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
                        u8 *data,                       /* isoc packet */
                        int len)                        /* iso packet length */
 {
+       struct sd *sd = (struct sd *) gspca_dev;
        int pkt_type;
 
        if (data[0] == 0x5a) {
+#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
+               if (len > 20) {
+                       u8 state = (data[20] & 0x80) ? 1 : 0;
+                       if (sd->button_pressed != state) {
+                               input_report_key(gspca_dev->input_dev,
+                                                KEY_CAMERA, state);
+                               input_sync(gspca_dev->input_dev);
+                               sd->button_pressed = state;
+                       }
+               }
+#endif
                /* Control Packet, after this came the header again,
                 * but extra bytes came in the packet before this,
                 * sometimes an EOF arrives, sometimes not... */
@@ -1410,6 +1432,9 @@ static const struct sd_desc sd_desc = {
        .stopN = sd_stopN,
        .pkt_scan = sd_pkt_scan,
        .querymenu = sd_querymenu,
+#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
+       .other_input = 1,
+#endif
 };
 
 /* -- module initialisation -- */