void ApplePS2Mouse::resetMouse()
{
DEBUG_LOG("%s::resetMouse called\n", getName());
//
// Reset the mouse to its default state.
//
// Contrary to what you might think kDP_SetDefaultsAndDisable does not set
// relative mode (for trackpads), as kDP_SetDefaults does. This is probably an
// oversight/error in the naming of these constants.
//
// For the kDP_SetDefaults, there is no point in trying to read the ACK
// ... it is just going to time out... and then later show up in the
// input stream unexpectedly.
TPS2Request<8> request;
request.commands[0].command = kPS2C_WriteCommandPort;
request.commands[0].inOrOut = kCP_TransmitToMouse;
request.commands[1].command = kPS2C_WriteDataPort;
request.commands[1].inOrOut = kDP_SetDefaults;
request.commands[2].command = kPS2C_WriteCommandPort;
request.commands[2].inOrOut = kCP_TransmitToMouse;
request.commands[3].command = kPS2C_WriteDataPort;
request.commands[3].inOrOut = kDP_GetMouseInformation;
request.commands[4].command = kPS2C_ReadDataPortAndCompare;
request.commands[4].inOrOut = kSC_Acknowledge;
request.commands[5].command = kPS2C_ReadDataPort;
request.commands[5].inOrOut = 0;
request.commands[6].command = kPS2C_ReadDataPort;
request.commands[6].inOrOut = 0;
request.commands[7].command = kPS2C_ReadDataPort;
request.commands[7].inOrOut = 0;
request.commandsCount = 8;
assert(request.commandsCount <= countof(request.commands));
_device->submitRequestAndBlock(&request);
if (8 != request.commandsCount)
DEBUG_LOG("%s: reset mouse sequence failed: %d\n", getName(), request.commandsCount);
// Now deal with Synaptics specifics (ActLikeTrackpad trick)...
ledpresent = false;
do if (actliketrackpad && !noled)
{
// do Synaptics specific, but only if it is Synaptics device
UInt8 buf3[3];
if (!getTouchPadData(0x0, buf3) || (0x46 != buf3[1] && 0x47 != buf3[1]))
break;
// it is Synaptics, now test for LED capability...
if (!getTouchPadData(0x2, buf3) || !(buf3[0] & 0x80))
break;
int nExtendedQueries = (buf3[0] & 0x70) >> 4;
// check LED capability if query is supported
if (nExtendedQueries >= 1 && getTouchPadData(0x9, buf3))
{
ledpresent = (buf3[0] >> 6) & 1;
DEBUG_LOG("%s: ledpresent=%d\n", getName(), ledpresent);
}
void ApplePS2Mouse::resetMouse()
{
DEBUG_LOG("%s::resetMouse called\n", getName());
//
// Reset the mouse to its default state.
//
PS2Request * request = _device->allocateRequest();
if (request)
{
request->commands[0].command = kPS2C_SendMouseCommandAndCompareAck;
//REVIEW: This was kDP_SetDefaults, but there is conflicting information on
// what this should do. I need to find some regular mouse PS2 docs to see
// how that might differ from what Synaptics docs are saying.
// If this is kDP_SetDefaults instead of kDP_SetDefaultsAndDisable, we end
// up seeing an unexpected ack ($FA) in the stream and it throws off the
// getMouseInformation return value.
//request->commands[0].inOrOut = kDP_SetDefaults;
request->commands[0].inOrOut = kDP_SetDefaultsAndDisable;
request->commandsCount = 1;
/*
// alternate way to do the same thing as above...
request->commands[0].command = kPS2C_WriteCommandPort;
request->commands[0].inOrOut = kCP_TransmitToMouse;
request->commands[1].command = kPS2C_WriteDataPort;
request->commands[1].inOrOut = kDP_SetDefaultsAndDisable;
request->commands[2].command = kPS2C_ReadDataPortAndCompare;
request->commands[2].inOrOut = kSC_Acknowledge;
request->commandsCount = 3;
*/
_device->submitRequestAndBlock(request);
_device->freeRequest(request);
}
if (actliketrackpad && !noled)
{
// deal with LED capability
UInt8 buf3[3];
//REVIEW; should really be sure this is synaptics first
if (getTouchPadData(0x9, buf3))
{
ledpresent = (buf3[0] >> 6) & 1;
DEBUG_LOG("VoodooPS2Mouse: ledpresent=%d\n", ledpresent);
}