![Tai-hwa Liang](/assets/img/avatar_default.png)
This is the driver for Sentelic Finger Sensing Pad which can be found on MSI WIND Netbook. Signed-off-by: Tai-hwa Liang <avatar@sentelic.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
476 lines
18 KiB
Text
476 lines
18 KiB
Text
Copyright (C) 2002-2008 Sentelic Corporation.
|
|
Last update: Oct-31-2008
|
|
|
|
==============================================================================
|
|
* Finger Sensing Pad Intellimouse Mode(scrolling wheel, 4th and 5th buttons)
|
|
==============================================================================
|
|
A) MSID 4: Scrolling wheel mode plus Forward page(4th button) and Backward
|
|
page (5th button)
|
|
@1. Set sample rate to 200;
|
|
@2. Set sample rate to 200;
|
|
@3. Set sample rate to 80;
|
|
@4. Issuing the "Get device ID" command (0xF2) and waits for the response;
|
|
@5. FSP will respond 0x04.
|
|
|
|
Packet 1
|
|
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
|
|
1 |Y|X|y|x|1|M|R|L| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 | | |B|F|W|W|W|W|
|
|
|---------------| |---------------| |---------------| |---------------|
|
|
|
|
Byte 1: Bit7 => Y overflow
|
|
Bit6 => X overflow
|
|
Bit5 => Y sign bit
|
|
Bit4 => X sign bit
|
|
Bit3 => 1
|
|
Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
|
|
Bit1 => Right Button, 1 is pressed, 0 is not pressed.
|
|
Bit0 => Left Button, 1 is pressed, 0 is not pressed.
|
|
Byte 2: X Movement(9-bit 2's complement integers)
|
|
Byte 3: Y Movement(9-bit 2's complement integers)
|
|
Byte 4: Bit3~Bit0 => the scrolling wheel's movement since the last data report.
|
|
valid values, -8 ~ +7
|
|
Bit4 => 1 = 4th mouse button is pressed, Forward one page.
|
|
0 = 4th mouse button is not pressed.
|
|
Bit5 => 1 = 5th mouse button is pressed, Backward one page.
|
|
0 = 5th mouse button is not pressed.
|
|
|
|
B) MSID 6: Horizontal and Vertical scrolling.
|
|
@ Set bit 1 in register 0x40 to 1
|
|
|
|
# FSP replaces scrolling wheel's movement as 4 bits to show horizontal and
|
|
vertical scrolling.
|
|
|
|
Packet 1
|
|
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
|
|
1 |Y|X|y|x|1|M|R|L| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 | | |B|F|l|r|u|d|
|
|
|---------------| |---------------| |---------------| |---------------|
|
|
|
|
Byte 1: Bit7 => Y overflow
|
|
Bit6 => X overflow
|
|
Bit5 => Y sign bit
|
|
Bit4 => X sign bit
|
|
Bit3 => 1
|
|
Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
|
|
Bit1 => Right Button, 1 is pressed, 0 is not pressed.
|
|
Bit0 => Left Button, 1 is pressed, 0 is not pressed.
|
|
Byte 2: X Movement(9-bit 2's complement integers)
|
|
Byte 3: Y Movement(9-bit 2's complement integers)
|
|
Byte 4: Bit0 => the Vertical scrolling movement downward.
|
|
Bit1 => the Vertical scrolling movement upward.
|
|
Bit2 => the Vertical scrolling movement rightward.
|
|
Bit3 => the Vertical scrolling movement leftward.
|
|
Bit4 => 1 = 4th mouse button is pressed, Forward one page.
|
|
0 = 4th mouse button is not pressed.
|
|
Bit5 => 1 = 5th mouse button is pressed, Backward one page.
|
|
0 = 5th mouse button is not pressed.
|
|
|
|
C) MSID 7:
|
|
# FSP uses 2 packets(8 Bytes) data to represent Absolute Position
|
|
so we have PACKET NUMBER to identify packets.
|
|
If PACKET NUMBER is 0, the packet is Packet 1.
|
|
If PACKET NUMBER is 1, the packet is Packet 2.
|
|
Please count this number in program.
|
|
|
|
# MSID6 special packet will be enable at the same time when enable MSID 7.
|
|
|
|
==============================================================================
|
|
* Absolute position for STL3886-G0.
|
|
==============================================================================
|
|
@ Set bit 2 or 3 in register 0x40 to 1
|
|
@ Set bit 6 in register 0x40 to 1
|
|
|
|
Packet 1 (ABSOLUTE POSITION)
|
|
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
|
|
1 |0|1|V|1|1|M|R|L| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 |r|l|d|u|X|X|Y|Y|
|
|
|---------------| |---------------| |---------------| |---------------|
|
|
|
|
Byte 1: Bit7~Bit6 => 00, Normal data packet
|
|
=> 01, Absolute coordination packet
|
|
=> 10, Notify packet
|
|
Bit5 => valid bit
|
|
Bit4 => 1
|
|
Bit3 => 1
|
|
Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
|
|
Bit1 => Right Button, 1 is pressed, 0 is not pressed.
|
|
Bit0 => Left Button, 1 is pressed, 0 is not pressed.
|
|
Byte 2: X coordinate (xpos[9:2])
|
|
Byte 3: Y coordinate (ypos[9:2])
|
|
Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
|
|
Bit3~Bit2 => X coordinate (ypos[1:0])
|
|
Bit4 => scroll up
|
|
Bit5 => scroll down
|
|
Bit6 => scroll left
|
|
Bit7 => scroll right
|
|
|
|
Notify Packet for G0
|
|
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
|
|
1 |1|0|0|1|1|M|R|L| 2 |C|C|C|C|C|C|C|C| 3 |M|M|M|M|M|M|M|M| 4 |0|0|0|0|0|0|0|0|
|
|
|---------------| |---------------| |---------------| |---------------|
|
|
|
|
Byte 1: Bit7~Bit6 => 00, Normal data packet
|
|
=> 01, Absolute coordination packet
|
|
=> 10, Notify packet
|
|
Bit5 => 0
|
|
Bit4 => 1
|
|
Bit3 => 1
|
|
Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
|
|
Bit1 => Right Button, 1 is pressed, 0 is not pressed.
|
|
Bit0 => Left Button, 1 is pressed, 0 is not pressed.
|
|
Byte 2: Message Type => 0x5A (Enable/Disable status packet)
|
|
Mode Type => 0xA5 (Normal/Icon mode status)
|
|
Byte 3: Message Type => 0x00 (Disabled)
|
|
=> 0x01 (Enabled)
|
|
Mode Type => 0x00 (Normal)
|
|
=> 0x01 (Icon)
|
|
Byte 4: Bit7~Bit0 => Don't Care
|
|
|
|
==============================================================================
|
|
* Absolute position for STL3888-A0.
|
|
==============================================================================
|
|
Packet 1 (ABSOLUTE POSITION)
|
|
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
|
|
1 |0|1|V|A|1|L|0|1| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 |x|x|y|y|X|X|Y|Y|
|
|
|---------------| |---------------| |---------------| |---------------|
|
|
|
|
Byte 1: Bit7~Bit6 => 00, Normal data packet
|
|
=> 01, Absolute coordination packet
|
|
=> 10, Notify packet
|
|
Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
|
|
When both fingers are up, the last two reports have zero valid
|
|
bit.
|
|
Bit4 => arc
|
|
Bit3 => 1
|
|
Bit2 => Left Button, 1 is pressed, 0 is released.
|
|
Bit1 => 0
|
|
Bit0 => 1
|
|
Byte 2: X coordinate (xpos[9:2])
|
|
Byte 3: Y coordinate (ypos[9:2])
|
|
Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
|
|
Bit3~Bit2 => X coordinate (ypos[1:0])
|
|
Bit5~Bit4 => y1_g
|
|
Bit7~Bit6 => x1_g
|
|
|
|
Packet 2 (ABSOLUTE POSITION)
|
|
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
|
|
1 |0|1|V|A|1|R|1|0| 2 |X|X|X|X|X|X|X|X| 3 |Y|Y|Y|Y|Y|Y|Y|Y| 4 |x|x|y|y|X|X|Y|Y|
|
|
|---------------| |---------------| |---------------| |---------------|
|
|
|
|
Byte 1: Bit7~Bit6 => 00, Normal data packet
|
|
=> 01, Absolute coordinates packet
|
|
=> 10, Notify packet
|
|
Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
|
|
When both fingers are up, the last two reports have zero valid
|
|
bit.
|
|
Bit4 => arc
|
|
Bit3 => 1
|
|
Bit2 => Right Button, 1 is pressed, 0 is released.
|
|
Bit1 => 1
|
|
Bit0 => 0
|
|
Byte 2: X coordinate (xpos[9:2])
|
|
Byte 3: Y coordinate (ypos[9:2])
|
|
Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
|
|
Bit3~Bit2 => X coordinate (ypos[1:0])
|
|
Bit5~Bit4 => y2_g
|
|
Bit7~Bit6 => x2_g
|
|
|
|
Notify Packet for STL3888-A0
|
|
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
|
|
1 |1|0|1|P|1|M|R|L| 2 |C|C|C|C|C|C|C|C| 3 |0|0|F|F|0|0|0|i| 4 |r|l|d|u|0|0|0|0|
|
|
|---------------| |---------------| |---------------| |---------------|
|
|
|
|
Byte 1: Bit7~Bit6 => 00, Normal data packet
|
|
=> 01, Absolute coordination packet
|
|
=> 10, Notify packet
|
|
Bit5 => 1
|
|
Bit4 => when in absolute coordinates mode (valid when EN_PKT_GO is 1):
|
|
0: left button is generated by the on-pad command
|
|
1: left button is generated by the external button
|
|
Bit3 => 1
|
|
Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
|
|
Bit1 => Right Button, 1 is pressed, 0 is not pressed.
|
|
Bit0 => Left Button, 1 is pressed, 0 is not pressed.
|
|
Byte 2: Message Type => 0xB7 (Multi Finger, Multi Coordinate mode)
|
|
Byte 3: Bit7~Bit6 => Don't care
|
|
Bit5~Bit4 => Number of fingers
|
|
Bit3~Bit1 => Reserved
|
|
Bit0 => 1: enter gesture mode; 0: leaving gesture mode
|
|
Byte 4: Bit7 => scroll right button
|
|
Bit6 => scroll left button
|
|
Bit5 => scroll down button
|
|
Bit4 => scroll up button
|
|
* Note that if gesture and additional button (Bit4~Bit7)
|
|
happen at the same time, the button information will not
|
|
be sent.
|
|
Bit3~Bit0 => Reserved
|
|
|
|
Sample sequence of Multi-finger, Multi-coordinate mode:
|
|
|
|
notify packet (valid bit == 1), abs pkt 1, abs pkt 2, abs pkt 1,
|
|
abs pkt 2, ..., notify packet(valid bit == 0)
|
|
|
|
==============================================================================
|
|
* FSP Enable/Disable packet
|
|
==============================================================================
|
|
Bit 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
|
|
BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
|
|
1 |Y|X|0|0|1|M|R|L| 2 |0|1|0|1|1|0|1|E| 3 | | | | | | | | | 4 | | | | | | | | |
|
|
|---------------| |---------------| |---------------| |---------------|
|
|
|
|
FSP will send out enable/disable packet when FSP receive PS/2 enable/disable
|
|
command. Host will receive the packet which Middle, Right, Left button will
|
|
be set. The packet only use byte 0 and byte 1 as a pattern of original packet.
|
|
Ignore the other bytes of the packet.
|
|
|
|
Byte 1: Bit7 => 0, Y overflow
|
|
Bit6 => 0, X overflow
|
|
Bit5 => 0, Y sign bit
|
|
Bit4 => 0, X sign bit
|
|
Bit3 => 1
|
|
Bit2 => 1, Middle Button
|
|
Bit1 => 1, Right Button
|
|
Bit0 => 1, Left Button
|
|
Byte 2: Bit7~1 => (0101101b)
|
|
Bit0 => 1 = Enable
|
|
0 = Disable
|
|
Byte 3: Don't care
|
|
Byte 4: Don't care (MOUSE ID 3, 4)
|
|
Byte 5~8: Don't care (Absolute packet)
|
|
|
|
==============================================================================
|
|
* PS/2 Command Set
|
|
==============================================================================
|
|
|
|
FSP supports basic PS/2 commanding set and modes, refer to following URL for
|
|
details about PS/2 commands:
|
|
|
|
http://www.computer-engineering.org/index.php?title=PS/2_Mouse_Interface
|
|
|
|
==============================================================================
|
|
* Programming Sequence for Determining Packet Parsing Flow
|
|
==============================================================================
|
|
1. Identify FSP by reading device ID(0x00) and version(0x01) register
|
|
|
|
2. Determine number of buttons by reading status2 (0x0b) register
|
|
|
|
buttons = reg[0x0b] & 0x30
|
|
|
|
if buttons == 0x30 or buttons == 0x20:
|
|
# two/four buttons
|
|
Refer to 'Finger Sensing Pad PS/2 Mouse Intellimouse'
|
|
section A for packet parsing detail(ignore byte 4, bit ~ 7)
|
|
elif buttons == 0x10:
|
|
# 6 buttons
|
|
Refer to 'Finger Sensing Pad PS/2 Mouse Intellimouse'
|
|
section B for packet parsing detail
|
|
elif buttons == 0x00:
|
|
# 6 buttons
|
|
Refer to 'Finger Sensing Pad PS/2 Mouse Intellimouse'
|
|
section A for packet parsing detail
|
|
|
|
==============================================================================
|
|
* Programming Sequence for Register Reading/Writing
|
|
==============================================================================
|
|
|
|
Register inversion requirement:
|
|
|
|
Following values needed to be inverted(the '~' operator in C) before being
|
|
sent to FSP:
|
|
|
|
0xe9, 0xee, 0xf2 and 0xff.
|
|
|
|
Register swapping requirement:
|
|
|
|
Following values needed to have their higher 4 bits and lower 4 bits being
|
|
swapped before being sent to FSP:
|
|
|
|
10, 20, 40, 60, 80, 100 and 200.
|
|
|
|
Register reading sequence:
|
|
|
|
1. send 0xf3 PS/2 command to FSP;
|
|
|
|
2. send 0x66 PS/2 command to FSP;
|
|
|
|
3. send 0x88 PS/2 command to FSP;
|
|
|
|
4. send 0xf3 PS/2 command to FSP;
|
|
|
|
5. if the register address being to read is not required to be
|
|
inverted(refer to the 'Register inversion requirement' section),
|
|
goto step 6
|
|
|
|
5a. send 0x68 PS/2 command to FSP;
|
|
|
|
5b. send the inverted register address to FSP and goto step 8;
|
|
|
|
6. if the register address being to read is not required to be
|
|
swapped(refer to the 'Register swapping requirement' section),
|
|
goto step 7
|
|
|
|
6a. send 0xcc PS/2 command to FSP;
|
|
|
|
6b. send the swapped register address to FSP and goto step 8;
|
|
|
|
7. send 0x66 PS/2 command to FSP;
|
|
|
|
7a. send the original register address to FSP and goto step 8;
|
|
|
|
8. send 0xe9(status request) PS/2 command to FSP;
|
|
|
|
9. the response read from FSP should be the requested register value.
|
|
|
|
Register writing sequence:
|
|
|
|
1. send 0xf3 PS/2 command to FSP;
|
|
|
|
2. if the register address being to write is not required to be
|
|
inverted(refer to the 'Register inversion requirement' section),
|
|
goto step 3
|
|
|
|
2a. send 0x74 PS/2 command to FSP;
|
|
|
|
2b. send the inverted register address to FSP and goto step 5;
|
|
|
|
3. if the register address being to write is not required to be
|
|
swapped(refer to the 'Register swapping requirement' section),
|
|
goto step 4
|
|
|
|
3a. send 0x77 PS/2 command to FSP;
|
|
|
|
3b. send the swapped register address to FSP and goto step 5;
|
|
|
|
4. send 0x55 PS/2 command to FSP;
|
|
|
|
4a. send the register address to FSP and goto step 5;
|
|
|
|
5. send 0xf3 PS/2 command to FSP;
|
|
|
|
6. if the register value being to write is not required to be
|
|
inverted(refer to the 'Register inversion requirement' section),
|
|
goto step 7
|
|
|
|
6a. send 0x47 PS/2 command to FSP;
|
|
|
|
6b. send the inverted register value to FSP and goto step 9;
|
|
|
|
7. if the register value being to write is not required to be
|
|
swapped(refer to the 'Register swapping requirement' section),
|
|
goto step 8
|
|
|
|
7a. send 0x44 PS/2 command to FSP;
|
|
|
|
7b. send the swapped register value to FSP and goto step 9;
|
|
|
|
8. send 0x33 PS/2 command to FSP;
|
|
|
|
8a. send the register value to FSP;
|
|
|
|
9. the register writing sequence is completed.
|
|
|
|
==============================================================================
|
|
* Register Listing
|
|
==============================================================================
|
|
|
|
offset width default r/w name
|
|
0x00 bit7~bit0 0x01 RO device ID
|
|
|
|
0x01 bit7~bit0 0xc0 RW version ID
|
|
|
|
0x02 bit7~bit0 0x01 RO vendor ID
|
|
|
|
0x03 bit7~bit0 0x01 RO product ID
|
|
|
|
0x04 bit3~bit0 0x01 RW revision ID
|
|
|
|
0x0b RO test mode status 1
|
|
bit3 1 RO 0: rotate 180 degree, 1: no rotation
|
|
|
|
bit5~bit4 RO number of buttons
|
|
11 => 2, lbtn/rbtn
|
|
10 => 4, lbtn/rbtn/scru/scrd
|
|
01 => 6, lbtn/rbtn/scru/scrd/scrl/scrr
|
|
00 => 6, lbtn/rbtn/scru/scrd/fbtn/bbtn
|
|
|
|
0x0f RW register file page control
|
|
bit0 0 RW 1 to enable page 1 register files
|
|
|
|
0x10 RW system control 1
|
|
bit0 1 RW Reserved, must be 1
|
|
bit1 0 RW Reserved, must be 0
|
|
bit4 1 RW Reserved, must be 0
|
|
bit5 0 RW register clock gating enable
|
|
0: read only, 1: read/write enable
|
|
(Note that following registers does not require clock gating being
|
|
enabled prior to write: 05 06 07 08 09 0c 0f 10 11 12 16 17 18 23 2e
|
|
40 41 42 43.)
|
|
|
|
0x31 RW on-pad command detection
|
|
bit7 0 RW on-pad command left button down tag
|
|
enable
|
|
0: disable, 1: enable
|
|
|
|
0x34 RW on-pad command control 5
|
|
bit4~bit0 0x05 RW XLO in 0s/4/1, so 03h = 0010.1b = 2.5
|
|
(Note that position unit is in 0.5 scanline)
|
|
|
|
bit7 0 RW on-pad tap zone enable
|
|
0: disable, 1: enable
|
|
|
|
0x35 RW on-pad command control 6
|
|
bit4~bit0 0x1d RW XHI in 0s/4/1, so 19h = 1100.1b = 12.5
|
|
(Note that position unit is in 0.5 scanline)
|
|
|
|
0x36 RW on-pad command control 7
|
|
bit4~bit0 0x04 RW YLO in 0s/4/1, so 03h = 0010.1b = 2.5
|
|
(Note that position unit is in 0.5 scanline)
|
|
|
|
0x37 RW on-pad command control 8
|
|
bit4~bit0 0x13 RW YHI in 0s/4/1, so 11h = 1000.1b = 8.5
|
|
(Note that position unit is in 0.5 scanline)
|
|
|
|
0x40 RW system control 5
|
|
bit1 0 RW FSP Intellimouse mode enable
|
|
0: disable, 1: enable
|
|
|
|
bit2 0 RW movement + abs. coordinate mode enable
|
|
0: disable, 1: enable
|
|
(Note that this function has the functionality of bit 1 even when
|
|
bit 1 is not set. However, the format is different from that of bit 1.
|
|
In addition, when bit 1 and bit 2 are set at the same time, bit 2 will
|
|
override bit 1.)
|
|
|
|
bit3 0 RW abs. coordinate only mode enable
|
|
0: disable, 1: enable
|
|
(Note that this function has the functionality of bit 1 even when
|
|
bit 1 is not set. However, the format is different from that of bit 1.
|
|
In addition, when bit 1, bit 2 and bit 3 are set at the same time,
|
|
bit 3 will override bit 1 and 2.)
|
|
|
|
bit5 0 RW auto switch enable
|
|
0: disable, 1: enable
|
|
|
|
bit6 0 RW G0 abs. + notify packet format enable
|
|
0: disable, 1: enable
|
|
(Note that the absolute/relative coordinate output still depends on
|
|
bit 2 and 3. That is, if any of those bit is 1, host will receive
|
|
absolute coordinates; otherwise, host only receives packets with
|
|
relative coordinate.)
|
|
|
|
0x43 RW on-pad control
|
|
bit0 0 RW on-pad control enable
|
|
0: disable, 1: enable
|
|
(Note that if this bit is cleared, bit 3/5 will be ineffective)
|
|
|
|
bit3 0 RW on-pad fix vertical scrolling enable
|
|
0: disable, 1: enable
|
|
|
|
bit5 0 RW on-pad fix horizontal scrolling enable
|
|
0: disable, 1: enable
|