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Xiaomi Mi Box Streaming Android TV Device
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yaworski



Joined: 22 Jun 2014
Posts: 454
Location: Warsaw, Poland

                    
PostPosted: Wed Jun 27, 2018 12:01 pm    Post subject: Reply with quote

I've tried looking for the remote.conf file on the MiBox with Oreo and I've found one: /vendor/etc/remote.conf (/vendor is a new partition related to Google's Project Treble). Unfortunately I don't think it is used by the system, as it's content looks like a default amlogic one (for software NEC decoder) and as we know, the MiBox uses hardware decoder.

To be sure I've tried making an upgrade for both factory codes in the file, but it doesn't work (well, good for me, as my LG TV uses NEC1 dev=4).

I've checked dmesg after pressing some buttons with these NEC upgrades and I get:
Code:
[70123.757401@1] meson-remote: parity check error code=0x3003c
[70123.757442@1] meson-remote c8100580.rc: invalid custom:0x0
[70123.762770@1] meson-remote c8100580.rc: cur_custom is nulll
[70123.768293@1] meson-remote c8100580.rc: no valid key to handle

everytime I press a button on the remote. Only the error code value changes between few different values.

Here's a content of the file:
Code:
#*********************************************************************************************************
#this file is configuration for each factory remote device
#    work_mode     0 :software mode  1 :hardware mode
#   repeat_enable     0 :disable repeat 1 :enable repeat
#
#   factory_code      each device has it's unique factory code.
#           pattern:custom_code(16bit)+index_code(16bit)
#           examble: 0xff000001 = 0xff00(custom cod)  0001 (index)
#
#   release_delay     unit:ms.release will report from kernel to user layer after this period of time
#           from press or repeat triggered.
#
#   debug_enable      0 :debug disable  1 :debug disable
#
# SW MODE:
#   bit_count     how many bits in each frame
#   tw_leader_act     time window for leader active
#   tw_bit0        time window for bit0 time.
#   tw_bit1        time window for bit1 time
#   tw_repeat_leader  time window for repeat leader
# REG
#   reg_base_gen     set value for PREG_IR_DEC_BASE_GEN
#   reg_control     set value for PREG_IR_DEC_CONTROL
#   reg_leader_act     set value for PREG_IR_DEC_LEADER_ACTIVE
#   reg_leader_idle     set value for PREG_IR_DEC_LEADER_IDLE
#   reg_repeat_leader set value for PREG_IR_DEC_REPEAT_IDLE
#   reg_bit0_time     set value for PREG_IR_DEC_BIT0_TIME
#*************************************************************************************************************
#amlogic NEC remote
work_mode        = 0
repeat_enable = 1
repeat_delay = 130
repeat_peroid = 120
release_delay   =       20
debug_enable    = 1

fn_key_scancode    = 0x15
left_key_scancode  = 0x1c
right_key_scancode = 0x48
up_key_scancode    = 0x44
down_key_scancode  = 0x1d
ok_key_scancode    = 0x5c
pageup_key_scancode = 0x04
pagedown_key_scancode = 0x1b

custom_begin
      factory_infcode = 0
      factory_code   = 0xfb040001

      mouse_begin
            0 0x1c
            1 0x48
            2 0x44
            3 0x1d
      mouse_end
      key_begin
            0x47 11
            0x13 2
            0x10 3
            0x11 4
            0x0F 5
            0x0C 6
            0x0D 7
            0x0B 8
            0x08 9
            0x09 10
            0x5C 97
            0x51 65
            0x49 14
            0x06 130
            0x14 131
            0x44 103
            0x1D 108
            0x1C 105
            0x48 106
            0x53 125
            0x45 104
            0x19 109
            0x16 102
            0x52 119
            0x05 122
            0x59 123
            0x1b 120
            0x04 121
            0x1A 116
            0x0A 15
            0x0e 113
            0x15 63
            0x1F 102
            0x1e 132
            0x07 133
            0x12 134
            0x54 135
            0x02 136
            0x4f 30
            0x42 48
            0x5d 46
            0x4c 32
            0x58 137
            0x55 140
      key_end
      repeat_key_begin
            0x47 11
            0x13 2
            0x10 3
            0x11 4
            0x0F 5
            0x0C 6
            0x0D 7
            0x0B 8
            0x08 9
            0x09 10
            0x5C 97
            0x51 65
            0x49 14
            0x06 130
            0x14 131
            0x44 103
            0x1D 108
            0x1C 105
            0x48 106
            0x53 125
            0x45 104
            0x19 109
            0x16 102
            0x52 119
            0x05 122
            0x59 123
            0x1b 120
            0x04 121
            0x1A 116
            0x0A 15
            0x0e 113
            0x15 63
            0x1F 102
            0x1e 132
            0x07 133
            0x12 134
            0x54 135
            0x02 136
            0x4f 30
            0x42 48
            0x5d 46
            0x4c 32
            0x58 137
            0x55 140
      repeat_key_end
custom_end

custom_begin
      factory_infcode = 1
      factory_code   = 0xbd020001
      key_begin
            0xca 103
            0xd2 108
            0x99 105
            0xc1 106
            0xce 97
            0x45 116
            0xc5 133
            0x80 113
            0xd0 15
            0xd6 125
            0x95 102
            0xdd 104
            0x8c 109
            0x89 131
            0x9c 130
            0x9a 120
            0xcd 121
      key_end
custom_end


I don't know if the remote control is now hardcoded and doesn't use the remote.conf file anymore or if the file is now located in some inaccessible directory.

Maybe it could be a good idea to check now if there are some new OBCs recognised.
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Marcin
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yaworski



Joined: 22 Jun 2014
Posts: 454
Location: Warsaw, Poland

                    
PostPosted: Wed Jun 27, 2018 1:25 pm    Post subject: Reply with quote

Ok, I've now went through all 255 OBCs with dev=134 (Xiaomi protocol).

I've run dmesg in a loop on the terminal. When the OBC is not recognised, an entry like this shows up in the dmesg:
Code:
[75925.744160@1] meson-remote c8100580.rc: scancode 242 undefined

(the scancode is equal to the OBC)

All OBCs for directional buttons, OK, menu, exit, home and volume buttons are still supported and work correctly. In addition only OBCs 3 and 17 don't generate this error, but I don't see any reaction on the MiBox. All other OBCs generate a log message like the one above.

When I change dev from 134 to something else then I get a log entry like this:
Code:
[76011.066114@1] meson-remote c8100580.rc: invalid custom:0x85049

The 0x85 in the code above is equal to the dev value.
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Marcin
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Jeff2525



Joined: 01 Feb 2017
Posts: 26

                    
PostPosted: Thu Jul 19, 2018 3:00 pm    Post subject: Reply with quote

Hi all.

First off, sorry for the long delay in uploading the file. It wasn't until I came back here to refresh my memory, with looking to see if I can update the commands, that I saw a message about uploading the file.

I just came back again and noticed that there is now a few people interested in getting IR codes for Mi Box, so thought I would chime in.

I can say that there are still 2 buttons that register with the Mi Box, that are unknown.

I installed ButtonMapper on Oreo (Accessibility has a bug in it, so I don't use it permanently) and that will read the buttons. There was 3 previously unknown buttons, but with the old MM OS. They were showen as F keys. I believe F10, F11, and F12.

With Oreo, I looked at the 2 unknown buttons that will still work and that will flash the light on the Mi Box, but ButtonMapper cannot identify them.

I also looked for the remote.conf file. It is the same exact one that was posted yaworski. It oddly shows Page Up, Page Down, Etc but none appears to work. It also is quite a bit longer than the old MM version, but Oreo seems to have less commands.

I hope it is something to do with the Remote.Conf file, but am worried that that file is meaningless.
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nerom86



Joined: 02 Oct 2014
Posts: 5

                    
PostPosted: Mon Dec 07, 2020 5:09 am    Post subject: Reply with quote

Hi, i just want you to know that im doing some investigation about codes on xiaomi 4s tv and some info in this thread might be useful to you as well:

http://www.hifi-remote.com/forums/viewtopic.php?t=102671

for example you could try if buttons forward and rewind work on mi box as well. (And if you'd like to take a look to help me find the other buttons for my mi tv, id be happy as well Very Happy)
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