[media] DVB: IR support for TechnoTrend CT-3650
Based on Waling Dijkstra's discovery that the IR works the same as
on the TT-1500, this patch has been rewritten to fit with the
rc_core infrastructure.
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/dvb-usb/ttusb2.c b/drivers/media/dvb/dvb-usb/ttusb2.c
index a6de489..0d4709f 100644
--- a/drivers/media/dvb/dvb-usb/ttusb2.c
+++ b/drivers/media/dvb/dvb-usb/ttusb2.c
@@ -43,6 +43,7 @@
struct ttusb2_state {
u8 id;
+ u16 last_rc_key;
};
static int ttusb2_msg(struct dvb_usb_device *d, u8 cmd,
@@ -128,6 +129,33 @@
.functionality = ttusb2_i2c_func,
};
+/* command to poll IR receiver (copied from pctv452e.c) */
+#define CMD_GET_IR_CODE 0x1b
+
+/* IR */
+static int tt3650_rc_query(struct dvb_usb_device *d)
+{
+ int ret;
+ u8 rx[9]; /* A CMD_GET_IR_CODE reply is 9 bytes long */
+ struct ttusb2_state *st = d->priv;
+ ret = ttusb2_msg(d, CMD_GET_IR_CODE, NULL, 0, rx, sizeof(rx));
+ if (ret != 0)
+ return ret;
+
+ if (rx[8] & 0x01) {
+ /* got a "press" event */
+ st->last_rc_key = (rx[3] << 8) | rx[2];
+ deb_info("%s: cmd=0x%02x sys=0x%02x\n", __func__, rx[2], rx[3]);
+ rc_keydown(d->rc_dev, st->last_rc_key, 0);
+ } else if (st->last_rc_key) {
+ rc_keyup(d->rc_dev);
+ st->last_rc_key = 0;
+ }
+
+ return 0;
+}
+
+
/* Callbacks for DVB USB */
static int ttusb2_identify_state (struct usb_device *udev, struct
dvb_usb_device_properties *props, struct dvb_usb_device_description **desc,
@@ -345,6 +373,13 @@
.size_of_priv = sizeof(struct ttusb2_state),
+ .rc.core = {
+ .rc_interval = 150, /* Less than IR_KEYPRESS_TIMEOUT */
+ .rc_codes = RC_MAP_TT_1500,
+ .rc_query = tt3650_rc_query,
+ .allowed_protos = RC_TYPE_UNKNOWN,
+ },
+
.num_adapters = 1,
.adapter = {
{