V4L/DVB: gspca_ov519: Add support for the button on ov518 based cams
Due to hardware limitations this only works while the camera is streaming. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -2702,6 +2702,11 @@ static void sd_reset_snapshot(struct gspca_dev *gspca_dev)
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sd->snapshot_needs_reset = 0;
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switch (sd->bridge) {
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case BRIDGE_OV518:
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case BRIDGE_OV518PLUS:
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reg_w(sd, R51x_SYS_SNAP, 0x02); /* Reset */
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reg_w(sd, R51x_SYS_SNAP, 0x01); /* Enable */
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break;
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case BRIDGE_OV519:
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reg_w(sd, R51x_SYS_RESET, 0x40);
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reg_w(sd, R51x_SYS_RESET, 0x00);
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@ -3977,6 +3982,28 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
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w9968cf_stop0(sd);
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}
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static void ov51x_handle_button(struct gspca_dev *gspca_dev, u8 state)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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if (sd->snapshot_pressed != state) {
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#ifdef CONFIG_INPUT
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input_report_key(gspca_dev->input_dev, KEY_CAMERA, state);
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input_sync(gspca_dev->input_dev);
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#endif
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if (state)
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sd->snapshot_needs_reset = 1;
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sd->snapshot_pressed = state;
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} else {
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/* On the ov519 we need to reset the button state multiple
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times, as resetting does not work as long as the button
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stays pressed */
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if (sd->bridge == BRIDGE_OV519 && state)
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sd->snapshot_needs_reset = 1;
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}
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}
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static void ov511_pkt_scan(struct gspca_dev *gspca_dev,
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u8 *in, /* isoc packet */
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int len) /* iso packet length */
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@ -4035,6 +4062,7 @@ static void ov518_pkt_scan(struct gspca_dev *gspca_dev,
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/* A false positive here is likely, until OVT gives me
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* the definitive SOF/EOF format */
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if ((!(data[0] | data[1] | data[2] | data[3] | data[5])) && data[6]) {
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ov51x_handle_button(gspca_dev, (data[6] >> 1) & 1);
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gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
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gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0);
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sd->packet_nr = 0;
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@ -4063,30 +4091,6 @@ static void ov518_pkt_scan(struct gspca_dev *gspca_dev,
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gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
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}
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static void ov519_handle_button(struct gspca_dev *gspca_dev, u8 state)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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/* This should never happen, but better to check */
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if (state != 0 && state != 1)
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return;
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/* We may need to reset the button state multiple times, as resetting
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does not work as long as the button stays pressed, so always set
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snapshot_needs_reset (instead of only on a state change to 1). */
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if (state)
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sd->snapshot_needs_reset = 1;
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if (sd->snapshot_pressed != state) {
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#ifdef CONFIG_INPUT
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input_report_key(gspca_dev->input_dev, KEY_CAMERA, state);
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input_sync(gspca_dev->input_dev);
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#endif
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sd->snapshot_pressed = state;
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}
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}
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static void ov519_pkt_scan(struct gspca_dev *gspca_dev,
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u8 *data, /* isoc packet */
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int len) /* iso packet length */
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@ -4120,7 +4124,7 @@ static void ov519_pkt_scan(struct gspca_dev *gspca_dev,
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gspca_dev->last_packet_type = DISCARD_PACKET;
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return;
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case 0x51: /* end of frame */
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ov519_handle_button(gspca_dev, data[11]);
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ov51x_handle_button(gspca_dev, data[11] & 1);
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if (data[9] != 0)
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gspca_dev->last_packet_type = DISCARD_PACKET;
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gspca_frame_add(gspca_dev, LAST_PACKET,
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