Hi Linux-media,
As a spare time project I bought myself a TT CT-3650, to see if I could
get it working. Waling Dijkstra did write a IR & CI patch for this model
half a year ago, so I was hopeful. (Reference:
http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg19860.html )
Having tested the patch, the IR is working (tested all keys via the
"evtest" tool), however descrambling is NOT working.
Waling's patch was reviewed but never merged. So I have taken the IR
part of the patch, cleaned it up a little, and hopefully this part is
ready for merging now. Patch is against linux-2.6.git.
As for the descrambling/CI/CAM part, that'll be the next assignment.
I'll be happy for some mentoring as I haven't done anything in this part
of the kernel before - whether I can debug some of it here or if I'll
have to install Windows and an USB sniffer to see what it does?
--
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic
>From 705adeab4da152cf24cede069b724765b8a07d55 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@xxxxxxxxxxxxx>
Date: Sun, 26 Dec 2010 07:55:57 +0100
Subject: [PATCH] DVB: TechnoTrend CT-3650 IR support
This patch enables IR support on the TechnoTrend CT-3650 device,
and is half of Waling Dijkstra's patch posted earlier this year,
cleaned up a little.
Signed-off-by: David Henningsson <david.henningsson@xxxxxxxxxxxxx>
---
drivers/media/dvb/dvb-usb/ttusb2.c | 75 ++++++++++++++++++++++++++++++++++++
drivers/media/dvb/dvb-usb/ttusb2.h | 3 +
2 files changed, 78 insertions(+), 0 deletions(-)
diff --git a/drivers/media/dvb/dvb-usb/ttusb2.c b/drivers/media/dvb/dvb-usb/ttusb2.c
index a6de489..1bacfc8 100644
--- a/drivers/media/dvb/dvb-usb/ttusb2.c
+++ b/drivers/media/dvb/dvb-usb/ttusb2.c
@@ -128,6 +128,76 @@ static struct i2c_algorithm ttusb2_i2c_algo = {
.functionality = ttusb2_i2c_func,
};
+/* IR */
+/* Remote Control Stuff for CT-3650 (copied from TT-S1500): */
+static struct dvb_usb_rc_key tt_connect_CT_3650_rc_key[] = {
+ {0x1501, KEY_POWER},
+ {0x1502, KEY_SHUFFLE}, /* ? double-arrow key */
+ {0x1503, KEY_1},
+ {0x1504, KEY_2},
+ {0x1505, KEY_3},
+ {0x1506, KEY_4},
+ {0x1507, KEY_5},
+ {0x1508, KEY_6},
+ {0x1509, KEY_7},
+ {0x150a, KEY_8},
+ {0x150b, KEY_9},
+ {0x150c, KEY_0},
+ {0x150d, KEY_UP},
+ {0x150e, KEY_LEFT},
+ {0x150f, KEY_OK},
+ {0x1510, KEY_RIGHT},
+ {0x1511, KEY_DOWN},
+ {0x1512, KEY_INFO},
+ {0x1513, KEY_EXIT},
+ {0x1514, KEY_RED},
+ {0x1515, KEY_GREEN},
+ {0x1516, KEY_YELLOW},
+ {0x1517, KEY_BLUE},
+ {0x1518, KEY_MUTE},
+ {0x1519, KEY_TEXT},
+ {0x151a, KEY_MODE}, /* ? TV/Radio */
+ {0x1521, KEY_OPTION},
+ {0x1522, KEY_EPG},
+ {0x1523, KEY_CHANNELUP},
+ {0x1524, KEY_CHANNELDOWN},
+ {0x1525, KEY_VOLUMEUP},
+ {0x1526, KEY_VOLUMEDOWN},
+ {0x1527, KEY_SETUP},
+ {0x153a, KEY_RECORD},/* these keys are only in the black remote */
+ {0x153b, KEY_PLAY},
+ {0x153c, KEY_STOP},
+ {0x153d, KEY_REWIND},
+ {0x153e, KEY_PAUSE},
+ {0x153f, KEY_FORWARD}
+};
+
+/* Copy-pasted from dvb-usb-remote.c */
+#define DVB_USB_RC_NEC_KEY_PRESSED 0x01
+
+static int tt3650_rc_query(struct dvb_usb_device *d, u32 *keyevent, int *keystate)
+{
+ u8 keybuf[5];
+ int ret;
+ u8 rx[9]; /* A CMD_GET_IR_CODE reply is 9 bytes long */
+ 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 */
+ deb_info("%s: cmd=0x%02x sys=0x%02x\n", __func__, rx[2], rx[3]);
+ keybuf[0] = DVB_USB_RC_NEC_KEY_PRESSED;
+ keybuf[1] = rx[3];
+ keybuf[2] = ~keybuf[1]; /* fake checksum */
+ keybuf[3] = rx[2];
+ keybuf[4] = ~keybuf[3]; /* fake checksum */
+ dvb_usb_nec_rc_key_to_event(d, keybuf, keyevent, keystate);
+ }
+ 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 +415,11 @@ static struct dvb_usb_device_properties ttusb2_properties_ct3650 = {
.size_of_priv = sizeof(struct ttusb2_state),
+ .rc_key_map = tt_connect_CT_3650_rc_key,
+ .rc_key_map_size = ARRAY_SIZE(tt_connect_CT_3650_rc_key),
+ .rc_query = tt3650_rc_query,
+ .rc_interval = 500,
+
.num_adapters = 1,
.adapter = {
{
diff --git a/drivers/media/dvb/dvb-usb/ttusb2.h b/drivers/media/dvb/dvb-usb/ttusb2.h
index 52a63af..1bd5d54 100644
--- a/drivers/media/dvb/dvb-usb/ttusb2.h
+++ b/drivers/media/dvb/dvb-usb/ttusb2.h
@@ -45,6 +45,9 @@
#define CMD_DISEQC 0x18
/* out data: <master=0xff/burst=??> <cmdlen> <cmdbytes>[cmdlen] */
+/* command to poll IR receiver (copied from pctv452e.c) */
+#define CMD_GET_IR_CODE 0x1b
+
#define CMD_PID_ENABLE 0x22
/* out data: <index> <type: ts=1/sec=2> <pid msb> <pid lsb> */
--
1.7.1
