fc69f4a6af
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
Plaintext
476 lines
18 KiB
Plaintext
Copyright (C) 2002-2008 Sentelic Corporation.
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Last update: Oct-31-2008
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==============================================================================
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* Finger Sensing Pad Intellimouse Mode(scrolling wheel, 4th and 5th buttons)
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==============================================================================
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A) MSID 4: Scrolling wheel mode plus Forward page(4th button) and Backward
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page (5th button)
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@1. Set sample rate to 200;
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@2. Set sample rate to 200;
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@3. Set sample rate to 80;
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@4. Issuing the "Get device ID" command (0xF2) and waits for the response;
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@5. FSP will respond 0x04.
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Packet 1
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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
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BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
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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|
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|---------------| |---------------| |---------------| |---------------|
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Byte 1: Bit7 => Y overflow
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Bit6 => X overflow
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Bit5 => Y sign bit
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Bit4 => X sign bit
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Bit3 => 1
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Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
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Bit1 => Right Button, 1 is pressed, 0 is not pressed.
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Bit0 => Left Button, 1 is pressed, 0 is not pressed.
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Byte 2: X Movement(9-bit 2's complement integers)
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Byte 3: Y Movement(9-bit 2's complement integers)
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Byte 4: Bit3~Bit0 => the scrolling wheel's movement since the last data report.
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valid values, -8 ~ +7
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Bit4 => 1 = 4th mouse button is pressed, Forward one page.
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0 = 4th mouse button is not pressed.
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Bit5 => 1 = 5th mouse button is pressed, Backward one page.
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0 = 5th mouse button is not pressed.
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B) MSID 6: Horizontal and Vertical scrolling.
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@ Set bit 1 in register 0x40 to 1
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# FSP replaces scrolling wheel's movement as 4 bits to show horizontal and
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vertical scrolling.
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Packet 1
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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
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BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
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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|
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|---------------| |---------------| |---------------| |---------------|
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Byte 1: Bit7 => Y overflow
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Bit6 => X overflow
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Bit5 => Y sign bit
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Bit4 => X sign bit
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Bit3 => 1
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Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
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Bit1 => Right Button, 1 is pressed, 0 is not pressed.
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Bit0 => Left Button, 1 is pressed, 0 is not pressed.
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Byte 2: X Movement(9-bit 2's complement integers)
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Byte 3: Y Movement(9-bit 2's complement integers)
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Byte 4: Bit0 => the Vertical scrolling movement downward.
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Bit1 => the Vertical scrolling movement upward.
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Bit2 => the Vertical scrolling movement rightward.
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Bit3 => the Vertical scrolling movement leftward.
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Bit4 => 1 = 4th mouse button is pressed, Forward one page.
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0 = 4th mouse button is not pressed.
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Bit5 => 1 = 5th mouse button is pressed, Backward one page.
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0 = 5th mouse button is not pressed.
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C) MSID 7:
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# FSP uses 2 packets(8 Bytes) data to represent Absolute Position
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so we have PACKET NUMBER to identify packets.
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If PACKET NUMBER is 0, the packet is Packet 1.
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If PACKET NUMBER is 1, the packet is Packet 2.
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Please count this number in program.
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# MSID6 special packet will be enable at the same time when enable MSID 7.
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==============================================================================
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* Absolute position for STL3886-G0.
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==============================================================================
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@ Set bit 2 or 3 in register 0x40 to 1
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@ Set bit 6 in register 0x40 to 1
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Packet 1 (ABSOLUTE POSITION)
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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
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BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
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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|
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|---------------| |---------------| |---------------| |---------------|
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Byte 1: Bit7~Bit6 => 00, Normal data packet
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=> 01, Absolute coordination packet
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=> 10, Notify packet
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Bit5 => valid bit
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Bit4 => 1
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Bit3 => 1
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Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
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Bit1 => Right Button, 1 is pressed, 0 is not pressed.
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Bit0 => Left Button, 1 is pressed, 0 is not pressed.
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Byte 2: X coordinate (xpos[9:2])
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Byte 3: Y coordinate (ypos[9:2])
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Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
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Bit3~Bit2 => X coordinate (ypos[1:0])
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Bit4 => scroll up
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Bit5 => scroll down
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Bit6 => scroll left
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Bit7 => scroll right
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Notify Packet for G0
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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
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BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
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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|
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|---------------| |---------------| |---------------| |---------------|
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Byte 1: Bit7~Bit6 => 00, Normal data packet
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=> 01, Absolute coordination packet
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=> 10, Notify packet
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Bit5 => 0
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Bit4 => 1
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Bit3 => 1
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Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
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Bit1 => Right Button, 1 is pressed, 0 is not pressed.
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Bit0 => Left Button, 1 is pressed, 0 is not pressed.
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Byte 2: Message Type => 0x5A (Enable/Disable status packet)
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Mode Type => 0xA5 (Normal/Icon mode status)
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Byte 3: Message Type => 0x00 (Disabled)
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=> 0x01 (Enabled)
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Mode Type => 0x00 (Normal)
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=> 0x01 (Icon)
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Byte 4: Bit7~Bit0 => Don't Care
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==============================================================================
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* Absolute position for STL3888-A0.
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==============================================================================
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Packet 1 (ABSOLUTE POSITION)
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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
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BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
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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|
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|---------------| |---------------| |---------------| |---------------|
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Byte 1: Bit7~Bit6 => 00, Normal data packet
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=> 01, Absolute coordination packet
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=> 10, Notify packet
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Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
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When both fingers are up, the last two reports have zero valid
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bit.
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Bit4 => arc
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Bit3 => 1
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Bit2 => Left Button, 1 is pressed, 0 is released.
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Bit1 => 0
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Bit0 => 1
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Byte 2: X coordinate (xpos[9:2])
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Byte 3: Y coordinate (ypos[9:2])
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Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
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Bit3~Bit2 => X coordinate (ypos[1:0])
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Bit5~Bit4 => y1_g
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Bit7~Bit6 => x1_g
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Packet 2 (ABSOLUTE POSITION)
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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
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BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
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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|
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|---------------| |---------------| |---------------| |---------------|
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Byte 1: Bit7~Bit6 => 00, Normal data packet
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=> 01, Absolute coordinates packet
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=> 10, Notify packet
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Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
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When both fingers are up, the last two reports have zero valid
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bit.
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Bit4 => arc
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Bit3 => 1
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Bit2 => Right Button, 1 is pressed, 0 is released.
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Bit1 => 1
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Bit0 => 0
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Byte 2: X coordinate (xpos[9:2])
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Byte 3: Y coordinate (ypos[9:2])
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Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
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Bit3~Bit2 => X coordinate (ypos[1:0])
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Bit5~Bit4 => y2_g
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Bit7~Bit6 => x2_g
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Notify Packet for STL3888-A0
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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
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BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
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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|
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|---------------| |---------------| |---------------| |---------------|
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Byte 1: Bit7~Bit6 => 00, Normal data packet
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=> 01, Absolute coordination packet
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=> 10, Notify packet
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Bit5 => 1
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Bit4 => when in absolute coordinates mode (valid when EN_PKT_GO is 1):
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0: left button is generated by the on-pad command
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1: left button is generated by the external button
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Bit3 => 1
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Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
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Bit1 => Right Button, 1 is pressed, 0 is not pressed.
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Bit0 => Left Button, 1 is pressed, 0 is not pressed.
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Byte 2: Message Type => 0xB7 (Multi Finger, Multi Coordinate mode)
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Byte 3: Bit7~Bit6 => Don't care
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Bit5~Bit4 => Number of fingers
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Bit3~Bit1 => Reserved
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Bit0 => 1: enter gesture mode; 0: leaving gesture mode
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Byte 4: Bit7 => scroll right button
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Bit6 => scroll left button
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Bit5 => scroll down button
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Bit4 => scroll up button
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* Note that if gesture and additional button (Bit4~Bit7)
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happen at the same time, the button information will not
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be sent.
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Bit3~Bit0 => Reserved
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Sample sequence of Multi-finger, Multi-coordinate mode:
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notify packet (valid bit == 1), abs pkt 1, abs pkt 2, abs pkt 1,
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abs pkt 2, ..., notify packet(valid bit == 0)
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==============================================================================
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* FSP Enable/Disable packet
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==============================================================================
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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
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BYTE |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
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1 |Y|X|0|0|1|M|R|L| 2 |0|1|0|1|1|0|1|E| 3 | | | | | | | | | 4 | | | | | | | | |
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|---------------| |---------------| |---------------| |---------------|
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FSP will send out enable/disable packet when FSP receive PS/2 enable/disable
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command. Host will receive the packet which Middle, Right, Left button will
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be set. The packet only use byte 0 and byte 1 as a pattern of original packet.
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Ignore the other bytes of the packet.
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Byte 1: Bit7 => 0, Y overflow
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Bit6 => 0, X overflow
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Bit5 => 0, Y sign bit
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Bit4 => 0, X sign bit
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Bit3 => 1
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Bit2 => 1, Middle Button
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Bit1 => 1, Right Button
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Bit0 => 1, Left Button
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Byte 2: Bit7~1 => (0101101b)
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Bit0 => 1 = Enable
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0 = Disable
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Byte 3: Don't care
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Byte 4: Don't care (MOUSE ID 3, 4)
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Byte 5~8: Don't care (Absolute packet)
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==============================================================================
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* PS/2 Command Set
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==============================================================================
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FSP supports basic PS/2 commanding set and modes, refer to following URL for
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details about PS/2 commands:
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http://www.computer-engineering.org/index.php?title=PS/2_Mouse_Interface
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==============================================================================
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* Programming Sequence for Determining Packet Parsing Flow
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==============================================================================
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1. Identify FSP by reading device ID(0x00) and version(0x01) register
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2. Determine number of buttons by reading status2 (0x0b) register
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buttons = reg[0x0b] & 0x30
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if buttons == 0x30 or buttons == 0x20:
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# two/four buttons
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Refer to 'Finger Sensing Pad PS/2 Mouse Intellimouse'
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section A for packet parsing detail(ignore byte 4, bit ~ 7)
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elif buttons == 0x10:
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# 6 buttons
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Refer to 'Finger Sensing Pad PS/2 Mouse Intellimouse'
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section B for packet parsing detail
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elif buttons == 0x00:
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# 6 buttons
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Refer to 'Finger Sensing Pad PS/2 Mouse Intellimouse'
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section A for packet parsing detail
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==============================================================================
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* Programming Sequence for Register Reading/Writing
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==============================================================================
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Register inversion requirement:
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Following values needed to be inverted(the '~' operator in C) before being
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sent to FSP:
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0xe9, 0xee, 0xf2 and 0xff.
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Register swapping requirement:
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Following values needed to have their higher 4 bits and lower 4 bits being
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swapped before being sent to FSP:
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10, 20, 40, 60, 80, 100 and 200.
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Register reading sequence:
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1. send 0xf3 PS/2 command to FSP;
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2. send 0x66 PS/2 command to FSP;
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3. send 0x88 PS/2 command to FSP;
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4. send 0xf3 PS/2 command to FSP;
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5. if the register address being to read is not required to be
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inverted(refer to the 'Register inversion requirement' section),
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goto step 6
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5a. send 0x68 PS/2 command to FSP;
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5b. send the inverted register address to FSP and goto step 8;
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6. if the register address being to read is not required to be
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swapped(refer to the 'Register swapping requirement' section),
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goto step 7
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6a. send 0xcc PS/2 command to FSP;
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6b. send the swapped register address to FSP and goto step 8;
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7. send 0x66 PS/2 command to FSP;
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7a. send the original register address to FSP and goto step 8;
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8. send 0xe9(status request) PS/2 command to FSP;
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9. the response read from FSP should be the requested register value.
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Register writing sequence:
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1. send 0xf3 PS/2 command to FSP;
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2. if the register address being to write is not required to be
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inverted(refer to the 'Register inversion requirement' section),
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goto step 3
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2a. send 0x74 PS/2 command to FSP;
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2b. send the inverted register address to FSP and goto step 5;
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3. if the register address being to write is not required to be
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swapped(refer to the 'Register swapping requirement' section),
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goto step 4
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3a. send 0x77 PS/2 command to FSP;
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3b. send the swapped register address to FSP and goto step 5;
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4. send 0x55 PS/2 command to FSP;
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4a. send the register address to FSP and goto step 5;
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5. send 0xf3 PS/2 command to FSP;
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6. if the register value being to write is not required to be
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inverted(refer to the 'Register inversion requirement' section),
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goto step 7
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6a. send 0x47 PS/2 command to FSP;
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6b. send the inverted register value to FSP and goto step 9;
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7. if the register value being to write is not required to be
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swapped(refer to the 'Register swapping requirement' section),
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goto step 8
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7a. send 0x44 PS/2 command to FSP;
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7b. send the swapped register value to FSP and goto step 9;
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8. send 0x33 PS/2 command to FSP;
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8a. send the register value to FSP;
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9. the register writing sequence is completed.
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==============================================================================
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* Register Listing
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==============================================================================
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offset width default r/w name
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0x00 bit7~bit0 0x01 RO device ID
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0x01 bit7~bit0 0xc0 RW version ID
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0x02 bit7~bit0 0x01 RO vendor ID
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0x03 bit7~bit0 0x01 RO product ID
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0x04 bit3~bit0 0x01 RW revision ID
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0x0b RO test mode status 1
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bit3 1 RO 0: rotate 180 degree, 1: no rotation
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bit5~bit4 RO number of buttons
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11 => 2, lbtn/rbtn
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10 => 4, lbtn/rbtn/scru/scrd
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01 => 6, lbtn/rbtn/scru/scrd/scrl/scrr
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00 => 6, lbtn/rbtn/scru/scrd/fbtn/bbtn
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0x0f RW register file page control
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bit0 0 RW 1 to enable page 1 register files
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0x10 RW system control 1
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bit0 1 RW Reserved, must be 1
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bit1 0 RW Reserved, must be 0
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bit4 1 RW Reserved, must be 0
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bit5 0 RW register clock gating enable
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0: read only, 1: read/write enable
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(Note that following registers does not require clock gating being
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enabled prior to write: 05 06 07 08 09 0c 0f 10 11 12 16 17 18 23 2e
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40 41 42 43.)
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0x31 RW on-pad command detection
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bit7 0 RW on-pad command left button down tag
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enable
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0: disable, 1: enable
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0x34 RW on-pad command control 5
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bit4~bit0 0x05 RW XLO in 0s/4/1, so 03h = 0010.1b = 2.5
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(Note that position unit is in 0.5 scanline)
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bit7 0 RW on-pad tap zone enable
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0: disable, 1: enable
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0x35 RW on-pad command control 6
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bit4~bit0 0x1d RW XHI in 0s/4/1, so 19h = 1100.1b = 12.5
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(Note that position unit is in 0.5 scanline)
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0x36 RW on-pad command control 7
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bit4~bit0 0x04 RW YLO in 0s/4/1, so 03h = 0010.1b = 2.5
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(Note that position unit is in 0.5 scanline)
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0x37 RW on-pad command control 8
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bit4~bit0 0x13 RW YHI in 0s/4/1, so 11h = 1000.1b = 8.5
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(Note that position unit is in 0.5 scanline)
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0x40 RW system control 5
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bit1 0 RW FSP Intellimouse mode enable
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0: disable, 1: enable
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bit2 0 RW movement + abs. coordinate mode enable
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0: disable, 1: enable
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(Note that this function has the functionality of bit 1 even when
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bit 1 is not set. However, the format is different from that of bit 1.
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In addition, when bit 1 and bit 2 are set at the same time, bit 2 will
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override bit 1.)
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bit3 0 RW abs. coordinate only mode enable
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0: disable, 1: enable
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(Note that this function has the functionality of bit 1 even when
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bit 1 is not set. However, the format is different from that of bit 1.
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In addition, when bit 1, bit 2 and bit 3 are set at the same time,
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bit 3 will override bit 1 and 2.)
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bit5 0 RW auto switch enable
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0: disable, 1: enable
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|
|
|
bit6 0 RW G0 abs. + notify packet format enable
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|
0: disable, 1: enable
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|
(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.)
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|
|
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0x43 RW on-pad control
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|
bit0 0 RW on-pad control enable
|
|
0: disable, 1: enable
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|
(Note that if this bit is cleared, bit 3/5 will be ineffective)
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|
|
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bit3 0 RW on-pad fix vertical scrolling enable
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|
0: disable, 1: enable
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|
|
|
bit5 0 RW on-pad fix horizontal scrolling enable
|
|
0: disable, 1: enable
|