consumerir: Convert transmit input from ms to pulses

According to:

 https://developer.android.com/reference/android/hardware/ConsumerIrManager.html#transmit%28int,%20int[]%29

the pattern is supposed to be in ms.  Apparently Samsung and HTC
in versions 4.4.2 and earlier of Android were treating this as
the number of pulses instead of ms.  This is what our HAL is
supporting because it mimic'ed what the vendors were doing.

However, we should switch to the correct spec of the pattern (ms)
and eventually this will cause apps to converge on the right
patterns.

Currently, this change will break half the existing apps and cause
the other half of the apps to stop being broken and to start
working.

Change-Id: I3d7c5104011e285324c31acb6333cae514d09ff6

1 files changed, 4 insertions, 1 deletions

diff --git a/consumerir/consumerir.c b/consumerir/consumerir.c
index 327beb4..d935118 100644
--- a/consumerir/consumerir.c
+++ b/consumerir/consumerir.c
@@ -47,10 +47,13 @@ static int consumerir_transmit(struct consumerir_device *dev,
     /* write the header */
     strlen = sprintf(buffer, "%d,", carrier_freq);
 
+    /* calculate factor of conversion from microseconds to pulses */
+    float factor = 1000000 / carrier_freq;
+
     /* write out the timing pattern */
     for (i = 0; i < pattern_len; i++)
     {
-        strlen += sprintf(buffer + strlen, "%d,", pattern[i]);
+        strlen += sprintf(buffer + strlen, "%d,", (int) (pattern[i]/factor));
     }
 
     buffer[strlen - 1] = 0;