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[media] DVB: IR support for TechnoTrend CT-3650

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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>
This commit is contained in:
David Henningsson 2010-12-26 10:23:58 -03:00 committed by Mauro Carvalho Chehab
parent ebce9a3331
commit 9d1da730ee
1 changed files with 35 additions and 0 deletions
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35
drivers/media/dvb/dvb-usb/ttusb2.c
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@ -43,6 +43,7 @@ DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
struct ttusb2_state {
u8 id;
u16 last_rc_key;
};
static int ttusb2_msg(struct dvb_usb_device *d, u8 cmd,
@ -128,6 +129,33 @@ static struct i2c_algorithm ttusb2_i2c_algo = {
.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 @@ static struct dvb_usb_device_properties ttusb2_properties_ct3650 = {
.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 = {
{