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author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-04-04 17:30:06 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2017-04-05 15:44:06 -0700 |
commit | 84ce6faf2d27d8e639a2019aa2bb136d0540521a (patch) | |
tree | edef29f463205f4bb77b5b4ec94971c1c44a058d /Documentation/input/alps.txt | |
parent | b0f355f300377fbe5492567f722eaf704a6ec36b (diff) | |
download | linux-84ce6faf2d27d8e639a2019aa2bb136d0540521a.tar.bz2 |
Input: ALPS - convert documentation into ReST format
Turn ALPS documentation into a valid ReST file, so it could be parsed with
Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/input/alps.txt')
-rw-r--r-- | Documentation/input/alps.txt | 43 |
1 files changed, 26 insertions, 17 deletions
diff --git a/Documentation/input/alps.txt b/Documentation/input/alps.txt index 8d1341ccde64..76a71a146e50 100644 --- a/Documentation/input/alps.txt +++ b/Documentation/input/alps.txt @@ -1,3 +1,4 @@ +---------------------- ALPS Touchpad Protocol ---------------------- @@ -78,7 +79,7 @@ of the EC response. Packet Format ------------- -In the following tables, the following notation is used. +In the following tables, the following notation is used:: CAPITALS = stick, miniscules = touchpad @@ -88,6 +89,8 @@ extra buttons, stick buttons on a dualpoint, etc. PS/2 packet format ------------------ +:: + byte 0: 0 0 YSGN XSGN 1 M R L byte 1: X7 X6 X5 X4 X3 X2 X1 X0 byte 2: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 @@ -99,7 +102,9 @@ are on the touchpad, the M R L bits signal the combined status of both the pointingstick and touchpad buttons. ALPS Absolute Mode - Protocol Version 1 --------------------------------------- +--------------------------------------- + +:: byte 0: 1 0 0 0 1 x9 x8 x7 byte 1: 0 x6 x5 x4 x3 x2 x1 x0 @@ -111,6 +116,8 @@ ALPS Absolute Mode - Protocol Version 1 ALPS Absolute Mode - Protocol Version 2 --------------------------------------- +:: + byte 0: 1 ? ? ? 1 PSM PSR PSL byte 1: 0 x6 x5 x4 x3 x2 x1 x0 byte 2: 0 x10 x9 x8 x7 ? fin ges @@ -127,6 +134,8 @@ and PSL bits. Dualpoint device -- interleaved packet format --------------------------------------------- +:: + byte 0: 1 1 0 0 1 1 1 1 byte 1: 0 x6 x5 x4 x3 x2 x1 x0 byte 2: 0 x10 x9 x8 x7 0 fin ges @@ -149,7 +158,7 @@ ALPS protocol version 3 has three different packet formats. The first two are associated with touchpad events, and the third is associated with trackstick events. -The first type is the touchpad position packet. +The first type is the touchpad position packet:: byte 0: 1 ? x1 x0 1 1 1 1 byte 1: 0 x10 x9 x8 x7 x6 x5 x4 @@ -165,7 +174,7 @@ The second packet type contains bitmaps representing the x and y axes. In the bitmaps a given bit is set if there is a finger covering that position on the given axis. Thus the bitmap packet can be used for low-resolution multi-touch data, although finger tracking is not possible. This packet also encodes the -number of contacts (f1 and f0 in the table below). +number of contacts (f1 and f0 in the table below):: byte 0: 1 1 x1 x0 1 1 1 1 byte 1: 0 x8 x7 x6 x5 x4 x3 x2 @@ -178,7 +187,7 @@ This packet only appears after a position packet with the mt bit set, and usually only appears when there are two or more contacts (although occasionally it's seen with only a single contact). -The final v3 packet type is the trackstick packet. +The final v3 packet type is the trackstick packet:: byte 0: 1 1 x7 y7 1 1 1 1 byte 1: 0 x6 x5 x4 x3 x2 x1 x0 @@ -190,7 +199,7 @@ The final v3 packet type is the trackstick packet. ALPS Absolute Mode - Protocol Version 4 --------------------------------------- -Protocol version 4 has an 8-byte packet format. +Protocol version 4 has an 8-byte packet format:: byte 0: 1 ? x1 x0 1 1 1 1 byte 1: 0 x10 x9 x8 x7 x6 x5 x4 @@ -203,7 +212,7 @@ Protocol version 4 has an 8-byte packet format. The last two bytes represent a partial bitmap packet, with 3 full packets required to construct a complete bitmap packet. Once assembled, the 6-byte -bitmap packet has the following format: +bitmap packet has the following format:: byte 0: 0 1 x7 x6 x5 x4 x3 x2 byte 1: 0 x1 x0 y4 y3 y2 y1 y0 @@ -238,7 +247,7 @@ decode. It uses the same alps_process_touchpad_packet_v3 call with a specialized decode_fields function pointer to correctly interpret the packets. This appears to only be used by the Dolphin devices. -For single-touch, the 6-byte packet format is: +For single-touch, the 6-byte packet format is:: byte 0: 1 1 0 0 1 0 0 0 byte 1: 0 x6 x5 x4 x3 x2 x1 x0 @@ -247,7 +256,7 @@ For single-touch, the 6-byte packet format is: byte 4: y10 y9 y8 y7 x10 x9 x8 x7 byte 5: 0 z6 z5 z4 z3 z2 z1 z0 -For mt, the format is: +For mt, the format is:: byte 0: 1 1 1 n3 1 n2 n1 x24 byte 1: 1 y7 y6 y5 y4 y3 y2 y1 @@ -259,7 +268,7 @@ For mt, the format is: ALPS Absolute Mode - Protocol Version 6 --------------------------------------- -For trackstick packet, the format is: +For trackstick packet, the format is:: byte 0: 1 1 1 1 1 1 1 1 byte 1: 0 X6 X5 X4 X3 X2 X1 X0 @@ -268,7 +277,7 @@ For trackstick packet, the format is: byte 4: Z7 Z6 Z5 Z4 Z3 Z2 Z1 Z0 byte 5: 0 1 1 1 1 1 1 1 -For touchpad packet, the format is: +For touchpad packet, the format is:: byte 0: 1 1 1 1 1 1 1 1 byte 1: 0 0 0 0 x3 x2 x1 x0 @@ -282,7 +291,7 @@ For touchpad packet, the format is: ALPS Absolute Mode - Protocol Version 7 --------------------------------------- -For trackstick packet, the format is: +For trackstick packet, the format is:: byte 0: 0 1 0 0 1 0 0 0 byte 1: 1 1 * * 1 M R L @@ -291,7 +300,7 @@ For trackstick packet, the format is: byte 4: Y7 0 Y5 Y4 Y3 1 1 0 byte 5: T&P 0 Z5 Z4 Z3 Z2 Z1 Z0 -For touchpad packet, the format is: +For touchpad packet, the format is:: packet-fmt b7 b6 b5 b4 b3 b2 b1 b0 byte 0: TWO & MULTI L 1 R M 1 Y0-2 Y0-1 Y0-0 @@ -328,7 +337,7 @@ Spoken by SS4 (73 03 14) and SS5 (73 03 28) hardware. The packet type is given by the APD field, bits 4-5 of byte 3. -Touchpad packet (APD = 0x2): +Touchpad packet (APD = 0x2):: b7 b6 b5 b4 b3 b2 b1 b0 byte 0: SWM SWR SWL 1 1 0 0 X7 @@ -340,7 +349,7 @@ Touchpad packet (APD = 0x2): SWM, SWR, SWL: Middle, Right, and Left button states -Touchpad 1 Finger packet (APD = 0x0): +Touchpad 1 Finger packet (APD = 0x0):: b7 b6 b5 b4 b3 b2 b1 b0 byte 0: SWM SWR SWL 1 1 X2 X1 X0 @@ -353,7 +362,7 @@ Touchpad 1 Finger packet (APD = 0x0): TAPF: ??? LFB: ??? -Touchpad 2 Finger packet (APD = 0x1): +Touchpad 2 Finger packet (APD = 0x1):: b7 b6 b5 b4 b3 b2 b1 b0 byte 0: SWM SWR SWL 1 1 AX6 AX5 AX4 @@ -365,7 +374,7 @@ Touchpad 2 Finger packet (APD = 0x1): CONT: A 3-or-4 Finger packet is to follow -Touchpad 3-or-4 Finger packet (APD = 0x3): +Touchpad 3-or-4 Finger packet (APD = 0x3):: b7 b6 b5 b4 b3 b2 b1 b0 byte 0: SWM SWR SWL 1 1 AX6 AX5 AX4 |