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V4L/DVB: dib0700: Fix RC protocol logic to properly handle NEC/NECx and RC-5 

Simplifies the logic for handling firmware 1.20 RC messages, fixing the
logic.

While here, I tried to use a RC-6 remote controller from my TV set, but it
didn't work with dib0700. Not sure why, but maybe this never worked.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2010-08-01 10:35:49 -03:00
parent 0ffd1ab34a
commit d3c501d193
1 changed files with 35 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
drivers/media/dvb/dvb-usb/dib0700_core.c
View File

@ -499,7 +499,7 @@ int dib0700_change_protocol(void *priv, u64 ir_type)
return ret;
}
d->props.rc.core.protocol = new_proto;
d->props.rc.core.protocol = ir_type;
return ret;
}
@ -511,7 +511,13 @@ int dib0700_change_protocol(void *priv, u64 ir_type)
struct dib0700_rc_response {
u8 report_id;
u8 data_state;
u16 system;
union {
u16 system16;
struct {
u8 system;
u8 not_system;
};
};
u8 data;
u8 not_data;
};
@ -521,9 +527,8 @@ static void dib0700_rc_urb_completion(struct urb *purb)
{
struct dvb_usb_device *d = purb->context;
struct dib0700_state *st;
struct dib0700_rc_response poll_reply;
u8 *buf;
u32 keycode;
struct dib0700_rc_response *poll_reply;
u32 uninitialized_var(keycode);
u8 toggle;
deb_info("%s()\n", __func__);
@ -537,7 +542,7 @@ static void dib0700_rc_urb_completion(struct urb *purb)
}
st = d->priv;
buf = (u8 *)purb->transfer_buffer;
poll_reply = purb->transfer_buffer;
if (purb->status < 0) {
deb_info("discontinuing polling\n");
@ -550,52 +555,51 @@ static void dib0700_rc_urb_completion(struct urb *purb)
goto resubmit;
}
deb_data("IR raw %02X %02X %02X %02X %02X %02X (len %d)\n", buf[0],
buf[1], buf[2], buf[3], buf[4], buf[5], purb->actual_length);
deb_data("IR ID = %02X state = %02X System = %02X %02X Cmd = %02X %02X (len %d)\n",
poll_reply->report_id, poll_reply->data_state,
poll_reply->system, poll_reply->not_system,
poll_reply->data, poll_reply->not_data,
purb->actual_length);
switch (d->props.rc.core.protocol) {
case IR_TYPE_NEC:
poll_reply.data_state = 0;
poll_reply.system = buf[2];
poll_reply.data = buf[4];
poll_reply.not_data = buf[5];
toggle = 0;
/* NEC protocol sends repeat code as 0 0 0 FF */
if ((poll_reply.system == 0x00) && (poll_reply.data == 0x00)
&& (poll_reply.not_data == 0xff)) {
poll_reply.data_state = 2;
if ((poll_reply->system == 0x00) && (poll_reply->data == 0x00)
&& (poll_reply->not_data == 0xff)) {
poll_reply->data_state = 2;
break;
}
if ((poll_reply->system ^ poll_reply->not_system) != 0xff) {
deb_data("NEC extended protocol\n");
/* NEC extended code - 24 bits */
keycode = poll_reply->system16 << 8 | poll_reply->data;
} else {
deb_data("NEC normal protocol\n");
/* normal NEC code - 16 bits */
keycode = poll_reply->system << 8 | poll_reply->data;
}
break;
default:
deb_data("RC5 protocol\n");
/* RC5 Protocol */
/* TODO: need to check the mapping for RC6 */
poll_reply.report_id = buf[0];
poll_reply.data_state = buf[1];
poll_reply.system = (buf[2] << 8) | buf[3];
poll_reply.data = buf[4];
poll_reply.not_data = buf[5];
toggle = poll_reply.report_id;
toggle = poll_reply->report_id;
keycode = poll_reply->system16 << 8 | poll_reply->data;
break;
}
if ((poll_reply.data + poll_reply.not_data) != 0xff) {
if ((poll_reply->data + poll_reply->not_data) != 0xff) {
/* Key failed integrity check */
err("key failed integrity check: %04x %02x %02x",
poll_reply.system,
poll_reply.data, poll_reply.not_data);
poll_reply->system,
poll_reply->data, poll_reply->not_data);
goto resubmit;
}
deb_data("rid=%02x ds=%02x sm=%04x d=%02x nd=%02x\n",
poll_reply.report_id, poll_reply.data_state,
poll_reply.system, poll_reply.data, poll_reply.not_data);
keycode = poll_reply.system << 8 | poll_reply.data;
ir_keydown(d->rc_input_dev, keycode, toggle);
resubmit: