/*
* SMI_DisplayPowerManagementSet -- Sets VESA Display Power Management
* Signaling (DPMS) Mode.
*/
void
SMILynx_DisplayPowerManagementSet(ScrnInfoPtr pScrn, int PowerManagementMode,
int flags)
{
SMIPtr pSmi = SMIPTR(pScrn);
SMIRegPtr mode = pSmi->mode;
vgaHWPtr hwp = VGAHWPTR(pScrn);
ENTER();
/* If we already are in the requested DPMS mode, just return */
if (pSmi->CurrentDPMS != PowerManagementMode) {
/* Read the required SR registers for the DPMS handler */
CARD8 SR01 = VGAIN8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x01);
switch (PowerManagementMode) {
case DPMSModeOn:
SR01 &= ~0x20; /* Screen on */
mode->SR23 &= ~0xC0; /* Disable chip activity detection */
break;
case DPMSModeStandby:
case DPMSModeSuspend:
case DPMSModeOff:
SR01 |= 0x20; /* Screen off */
mode->SR23 = (mode->SR23 & ~0x07) | 0xD8; /* Enable chip activity detection
Enable internal auto-standby mode
Enable both IO Write and Host Memory write detect
0 minutes timeout */
break;
}
/* Wait for vertical retrace */
while (hwp->readST01(hwp) & 0x8) ;
while (!(hwp->readST01(hwp) & 0x8)) ;
/* Write the registers */
VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x01, SR01);
VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x23, mode->SR23);
/* Set the DPMS mode to every output and CRTC */
xf86DPMSSet(pScrn, PowerManagementMode, flags);
/* Save the current power state */
pSmi->CurrentDPMS = PowerManagementMode;
}
LEAVE();
}
static void
imxOutputModeSet(xf86OutputPtr output, DisplayModePtr mode,
DisplayModePtr adjMode)
{
/**
* Callback for setting up a video mode after fixups have been made.
*
* This is only called while the output is disabled. The dpms callback
* must be all that's necessary for the output, to turn the output on
* after this function is called.
*/
/* Access the associated screen info. */
ScrnInfoPtr pScrn = output->scrn;
/* Enable the output */
xf86DPMSSet(pScrn, DPMSModeOn, 0);
}
void
vmwgfx_disable_scanout(ScrnInfoPtr pScrn)
{
int i;
Bool save_enabled;
xf86CrtcPtr crtc;
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
xf86DPMSSet(pScrn, DPMSModeOff, 0);
for (i=0; i < config->num_crtc; ++i) {
crtc = config->crtc[i];
save_enabled = crtc->enabled;
crtc->enabled = FALSE;
crtc_dpms(crtc, DPMSModeOff);
crtc->enabled = save_enabled;
}
xf86RotateFreeShadow(pScrn);
}
