/* Event rate throttling timer to emulate the auxiliary device sampling rate.
*/
static DECLCALLBACK(void) ps2mThrottleTimer(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
{
PPS2M pThis = (PS2M *)pvUser; NOREF(pDevIns);
uint32_t uHaveEvents;
/* Grab the lock to avoid races with PutEvent(). */
int rc = PDMCritSectEnter(pThis->pCritSectR3, VERR_SEM_BUSY);
AssertReleaseRC(rc);
#if 0
/* If the input queue is not empty, restart the timer. */
#else
/* If more movement is accumulated, report it and restart the timer. */
uHaveEvents = pThis->iAccumX | pThis->iAccumY | pThis->iAccumZ | pThis->fAccumB;
LogFlowFunc(("Have%s events\n", uHaveEvents ? "" : " no"));
if (uHaveEvents)
#endif
{
ps2mReportAccumulatedEvents(pThis);
TMTimerSetMillies(pThis->CTX_SUFF(pThrottleTimer), pThis->uThrottleDelay);
}
else
pThis->fThrottleActive = false;
PDMCritSectLeave(pThis->pCritSectR3);
}
/* Event rate throttling timer to emulate the auxiliary device sampling rate.
*/
static DECLCALLBACK(void) ps2mThrottleTimer(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
{
RT_NOREF2(pDevIns, pTimer);
PPS2M pThis = (PS2M *)pvUser;
uint32_t uHaveEvents;
/* Grab the lock to avoid races with PutEvent(). */
int rc = PDMCritSectEnter(pThis->pCritSectR3, VERR_SEM_BUSY);
AssertReleaseRC(rc);
#if 0
/* If the input queue is not empty, restart the timer. */
#else
/* If more movement is accumulated, report it and restart the timer. */
uHaveEvents = pThis->iAccumX | pThis->iAccumY | pThis->iAccumZ | (pThis->fCurrB != pThis->fReportedB);
LogFlowFunc(("Have%s events\n", uHaveEvents ? "" : " no"));
if (uHaveEvents)
#endif
{
/* Report accumulated data, poke the KBC, and start the timer. */
ps2mReportAccumulatedEvents(pThis, (GeneriQ *)&pThis->evtQ, true);
KBCUpdateInterrupts(pThis->pParent);
TMTimerSetMillies(pThis->CTX_SUFF(pThrottleTimer), pThis->uThrottleDelay);
}
else
pThis->fThrottleActive = false;
PDMCritSectLeave(pThis->pCritSectR3);
}
/**
* Mouse event handler.
*
* @returns VBox status code.
* @param pThis The PS/2 auxiliary device instance data.
* @param dx X direction movement delta.
* @param dy Y direction movement delta.
* @param dz Z (vertical scroll) movement delta.
* @param dw W (horizontal scroll) movement delta.
* @param fButtons Depressed button mask.
*/
static int ps2mPutEventWorker(PPS2M pThis, int32_t dx, int32_t dy,
int32_t dz, int32_t dw, uint32_t fButtons)
{
RT_NOREF1(dw);
int rc = VINF_SUCCESS;
/* Update internal accumulators and button state. */
pThis->iAccumX += dx;
pThis->iAccumY += dy;
pThis->iAccumZ += dz;
pThis->fAccumB |= fButtons; /// @todo accumulate based on current protocol?
pThis->fCurrB = fButtons;
#if 1
/* Report the event and start the throttle timer unless it's already running. */
if (!pThis->fThrottleActive)
{
ps2mReportAccumulatedEvents(pThis, (GeneriQ *)&pThis->evtQ, true);
KBCUpdateInterrupts(pThis->pParent);
pThis->fThrottleActive = true;
TMTimerSetMillies(pThis->CTX_SUFF(pThrottleTimer), pThis->uThrottleDelay);
}
#else
/* Clamp the delta values to the allowed range. */
dx = RT_MIN(RT_MAX(dx, -256), 255);
dy = RT_MIN(RT_MAX(dy, -256), 255);
/* Start with the sync bit. */
val = RT_BIT(3);
/* Add buttons 1-3. */
val |= fButtons & PS2M_STD_BTN_MASK;
/* Set the X/Y sign bits. */
if (dx < 0)
val |= RT_BIT(4);
if (dy < 0)
val |= RT_BIT(5);
ps2kInsertQueue((GeneriQ *)&pThis->evtQ, val);
ps2kInsertQueue((GeneriQ *)&pThis->evtQ, (uint8_t)dx);
ps2kInsertQueue((GeneriQ *)&pThis->evtQ, (uint8_t)dy);
if (pThis->enmProtocol > PS2M_PROTO_PS2STD)
{
ps2kInsertQueue((GeneriQ *)&pThis->evtQ, (uint8_t)dz);
}
#endif
return rc;
}
/**
* Receive and process a byte sent by the keyboard controller.
*
* @param pThis The PS/2 auxiliary device instance data.
* @param cmd The command (or data) byte.
*/
int PS2MByteToAux(PPS2M pThis, uint8_t cmd)
{
uint8_t u8Val;
bool fHandled = true;
LogFlowFunc(("cmd=0x%02X, active cmd=0x%02X\n", cmd, pThis->u8CurrCmd));
//LogRel(("aux: cmd=0x%02X, active cmd=0x%02X\n", cmd, pThis->u8CurrCmd));
if (pThis->enmMode == AUX_MODE_RESET)
/* In reset mode, do not respond at all. */
return VINF_SUCCESS;
/* If there's anything left in the command response queue, trash it. */
ps2kClearQueue((GeneriQ *)&pThis->cmdQ);
if (pThis->enmMode == AUX_MODE_WRAP)
{
/* In wrap mode, bounce most data right back.*/
if (cmd == ACMD_RESET || cmd == ACMD_RESET_WRAP)
; /* Handle as regular commands. */
else
{
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, cmd);
return VINF_SUCCESS;
}
}
#ifndef IN_RING3
/* Reset, Enable, and Set Default commands must be run in R3. */
if (cmd == ACMD_RESET || cmd == ACMD_ENABLE || cmd == ACMD_SET_DEFAULT)
return VINF_IOM_R3_IOPORT_WRITE;
#endif
switch (cmd)
{
case ACMD_SET_SCALE_11:
pThis->u8State &= ~AUX_STATE_SCALING;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
break;
case ACMD_SET_SCALE_21:
pThis->u8State |= AUX_STATE_SCALING;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
break;
case ACMD_REQ_STATUS:
/* Report current status, sample rate, and resolution. */
u8Val = (pThis->u8State & AUX_STATE_EXTERNAL) | (pThis->fCurrB & PS2M_STD_BTN_MASK);
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, u8Val);
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, pThis->u8Resolution);
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, pThis->u8SampleRate);
pThis->u8CurrCmd = 0;
break;
case ACMD_SET_STREAM:
pThis->u8State &= ~AUX_STATE_REMOTE;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
break;
case ACMD_READ_REMOTE:
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
ps2mReportAccumulatedEvents(pThis, (GeneriQ *)&pThis->cmdQ, false);
pThis->u8CurrCmd = 0;
break;
case ACMD_RESET_WRAP:
pThis->enmMode = AUX_MODE_STD;
/* NB: Stream mode reporting remains disabled! */
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
break;
case ACMD_SET_WRAP:
pThis->enmMode = AUX_MODE_WRAP;
pThis->u8State &= ~AUX_STATE_ENABLED;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
break;
case ACMD_SET_REMOTE:
pThis->u8State |= AUX_STATE_REMOTE;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
break;
case ACMD_READ_ID:
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, pThis->enmProtocol);
pThis->u8CurrCmd = 0;
break;
case ACMD_ENABLE:
pThis->u8State |= AUX_STATE_ENABLED;
#ifdef IN_RING3
ps2mSetDriverState(pThis, true);
#else
AssertLogRelMsgFailed(("Invalid ACMD_ENABLE outside R3!\n"));
#endif
ps2kClearQueue((GeneriQ *)&pThis->evtQ);
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
break;
case ACMD_DISABLE:
pThis->u8State &= ~AUX_STATE_ENABLED;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
break;
case ACMD_SET_DEFAULT:
ps2mSetDefaults(pThis);
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
break;
case ACMD_RESEND:
pThis->u8CurrCmd = 0;
break;
case ACMD_RESET:
ps2mSetDefaults(pThis);
/// @todo reset more?
pThis->u8CurrCmd = cmd;
pThis->enmMode = AUX_MODE_RESET;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
if (pThis->fDelayReset)
/* Slightly delay reset completion; it might take hundreds of ms. */
TMTimerSetMillies(pThis->CTX_SUFF(pDelayTimer), 1);
else
#ifdef IN_RING3
ps2mReset(pThis);
#else
AssertLogRelMsgFailed(("Invalid ACMD_RESET outside R3!\n"));
#endif
break;
/* The following commands need a parameter. */
case ACMD_SET_RES:
case ACMD_SET_SAMP_RATE:
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = cmd;
break;
default:
/* Sending a command instead of a parameter starts the new command. */
switch (pThis->u8CurrCmd)
{
case ACMD_SET_RES:
if (cmd < 4) /* Valid resolutions are 0-3. */
{
pThis->u8Resolution = cmd;
pThis->u8State &= ~AUX_STATE_RES_ERR;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
}
else
{
/* Bad resolution. Reply with Resend or Error. */
if (pThis->u8State & AUX_STATE_RES_ERR)
{
pThis->u8State &= ~AUX_STATE_RES_ERR;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ERROR);
pThis->u8CurrCmd = 0;
}
else
{
pThis->u8State |= AUX_STATE_RES_ERR;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_RESEND);
/* NB: Current command remains unchanged. */
}
}
break;
case ACMD_SET_SAMP_RATE:
if (ps2mIsRateSupported(cmd))
{
pThis->u8State &= ~AUX_STATE_RATE_ERR;
ps2mSetRate(pThis, cmd);
ps2mRateProtocolKnock(pThis, cmd);
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ACK);
pThis->u8CurrCmd = 0;
}
else
{
/* Bad rate. Reply with Resend or Error. */
if (pThis->u8State & AUX_STATE_RATE_ERR)
{
pThis->u8State &= ~AUX_STATE_RATE_ERR;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_ERROR);
pThis->u8CurrCmd = 0;
}
else
{
pThis->u8State |= AUX_STATE_RATE_ERR;
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_RESEND);
/* NB: Current command remains unchanged. */
}
}
break;
default:
fHandled = false;
}
/* Fall through only to handle unrecognized commands. */
if (fHandled)
break;
case ACMD_INVALID_1:
case ACMD_INVALID_2:
case ACMD_INVALID_3:
case ACMD_INVALID_4:
case ACMD_INVALID_5:
case ACMD_INVALID_6:
case ACMD_INVALID_7:
case ACMD_INVALID_8:
case ACMD_INVALID_9:
case ACMD_INVALID_10:
Log(("Unsupported command 0x%02X!\n", cmd));
ps2kInsertQueue((GeneriQ *)&pThis->cmdQ, ARSP_RESEND);
pThis->u8CurrCmd = 0;
break;
}
LogFlowFunc(("Active cmd now 0x%02X; updating interrupts\n", pThis->u8CurrCmd));
// KBCUpdateInterrupts(pThis->pParent);
return VINF_SUCCESS;
}
