path: root/include/media
diff options
authorJarod Wilson <jarod@redhat.com>2010-08-07 13:31:40 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-10-21 01:04:47 -0200
commit7a569f524dd36806b995c844f29e28ff40c444b2 (patch)
treef771e5bd298089fe007a74d654c756fda4c39f3e /include/media
parent516c714c6c823e412dc485ca9c5307348cddd097 (diff)
V4L/DVB: IR/streamzap: functional in-kernel decoding
This patch makes in-kernel decoding with the stock Streamzap PC Remote work out of the box. There are quite a few things going on in this patch, all related to getting this working: 1) I had to enable reporting of a long space at the end of each signal, or I had weird buffering and keybounce issues. 2) The keymap has been reworked slightly to match actual decoded values, the first edition was missing the pre-data bits present in the lirc config file for this remote. 3) There's a whole new decoder included, specifically for the not-quite-RC5 15-bit protocol variant used by the Streamzap PC Remote. The decoder, while usable with other recievers (tested with an mceusb receiver), will only be loaded by the streamzap driver, as its likely not of use in almost all other situations. This can be revisited if/when all keytable loading (and disabling of unneeded protocol decoder engines) is moved to userspace, but for now, I think this makes the most sense. Note that I did try to enable handling the streamzap RC5-ish protocol in the current RC5 decoder, but there's no particularly easy way to tell if its 14-bit RC5 or 15-bit Streamzap until we see bit 14, and even then, in testing an attempted decoder merge, only 2/3 of the keys were properly recognized as being the 15-bit variant and decoded correctly, the rest were close enough to compliant with 14-bit that they were decoded as such (but they have overlap with one another, and thus we can't just shrug and use the 14-bit decoded values). Also of note in this patch is the removal of the streamzap driver's internal delay buffer. Per discussion w/Christoph, it shouldn't be needed by lirc any longer anyway, and it doesn't seem to make any difference to the in-kernel decoder engine. That being the case, I'm yanking it all out, as it greatly simplifies the driver code. Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media')
1 files changed, 3 insertions, 2 deletions
diff --git a/include/media/rc-map.h b/include/media/rc-map.h
index a9c041d4966..6c0324eb491 100644
--- a/include/media/rc-map.h
+++ b/include/media/rc-map.h
@@ -17,12 +17,13 @@
#define IR_TYPE_RC6 (1 << 2) /* Philips RC6 protocol */
#define IR_TYPE_JVC (1 << 3) /* JVC protocol */
#define IR_TYPE_SONY (1 << 4) /* Sony12/15/20 protocol */
+#define IR_TYPE_RC5_SZ (1 << 5) /* RC5 variant used by Streamzap */
#define IR_TYPE_LIRC (1 << 30) /* Pass raw IR to lirc userspace */
#define IR_TYPE_OTHER (1u << 31)
struct ir_scancode {
u32 scancode;
@@ -114,10 +115,10 @@ void rc_map_init(void);
#define RC_MAP_PURPLETV "rc-purpletv"
#define RC_MAP_PV951 "rc-pv951"
#define RC_MAP_RC5_HAUPPAUGE_NEW "rc-rc5-hauppauge-new"
-#define RC_MAP_RC5_STREAMZAP "rc-rc5-streamzap"
#define RC_MAP_RC5_TV "rc-rc5-tv"
#define RC_MAP_RC6_MCE "rc-rc6-mce"
#define RC_MAP_REAL_AUDIO_220_32_KEYS "rc-real-audio-220-32-keys"
+#define RC_MAP_STREAMZAP "rc-streamzap"
#define RC_MAP_TBS_NEC "rc-tbs-nec"
#define RC_MAP_TERRATEC_CINERGY_XS "rc-terratec-cinergy-xs"
#define RC_MAP_TEVII_NEC "rc-tevii-nec"