andreacavalli/xserver-multidpi
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

xf86: allow for no outputs connected at startup operation.

Browse Source 
When nothing is connected at startup and we canGrow, allow the server to start with a 1024x768 framebuffer, and when the drivers send hotplug events this will expand to the correct size dynamically.

Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Dave Airlie 2010-05-24 09:31:51 +10:00 committed by Keith Packard
parent b9f48d60bc
commit 5939e39a64
1 changed files with 44 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
hw/xfree86/modes/xf86Crtc.c
View File

@ -46,6 +46,8 @@
#include "xf86xv.h"
#define NO_OUTPUT_DEFAULT_WIDTH 1024
#define NO_OUTPUT_DEFAULT_HEIGHT 768
/*
* Initialize xf86CrtcConfig structure
*/
@ -1923,7 +1925,7 @@ xf86SetScrnInfoModes (ScrnInfoPtr scrn)
#endif
}
static void
static Bool
xf86CollectEnabledOutputs(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
Bool *enabled)
{
@ -1938,8 +1940,10 @@ xf86CollectEnabledOutputs(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
"No outputs definitely connected, trying again...\n");
for (o = 0; o < config->num_output; o++)
enabled[o] = xf86OutputEnabled(config->output[o], FALSE);
any_enabled |= enabled[o] = xf86OutputEnabled(config->output[o], FALSE);
}
return any_enabled;
}
static Bool
@ -2339,6 +2343,8 @@ xf86InitialConfiguration (ScrnInfoPtr scrn, Bool canGrow)
Bool *enabled;
int width, height;
int i = scrn->scrnIndex;
Bool have_outputs = TRUE;
Bool ret;
/* Set up the device options */
config->options = xnfalloc (sizeof (xf86DeviceOptions));
@ -2364,18 +2370,23 @@ xf86InitialConfiguration (ScrnInfoPtr scrn, Bool canGrow)
modes = xnfcalloc (config->num_output, sizeof (DisplayModePtr));
enabled = xnfcalloc (config->num_output, sizeof (Bool));
xf86CollectEnabledOutputs(scrn, config, enabled);
if (xf86TargetUserpref(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using user preference for initial modes\n");
else if (xf86TargetPreferred(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using exact sizes for initial modes\n");
else if (xf86TargetAspect(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using fuzzy aspect match for initial modes\n");
else if (xf86TargetFallback(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using sloppy heuristic for initial modes\n");
else
xf86DrvMsg(i, X_WARNING, "Unable to find initial modes\n");
ret = xf86CollectEnabledOutputs(scrn, config, enabled);
if (ret == FALSE && canGrow) {
xf86DrvMsg(i, X_WARNING, "Unable to find connected outputs - setting %dx%d initial framebuffer\n",
NO_OUTPUT_DEFAULT_WIDTH, NO_OUTPUT_DEFAULT_HEIGHT);
have_outputs = FALSE;
} else {
if (xf86TargetUserpref(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using user preference for initial modes\n");
else if (xf86TargetPreferred(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using exact sizes for initial modes\n");
else if (xf86TargetAspect(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using fuzzy aspect match for initial modes\n");
else if (xf86TargetFallback(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using sloppy heuristic for initial modes\n");
else
xf86DrvMsg(i, X_WARNING, "Unable to find initial modes\n");
}
for (o = -1; nextEnabledOutput(config, enabled, &o); ) {
if (!modes[o])
@ -2406,7 +2417,7 @@ xf86InitialConfiguration (ScrnInfoPtr scrn, Bool canGrow)
/*
* Assign CRTCs to fit output configuration
*/
if (!xf86PickCrtcs (scrn, crtcs, modes, 0, width, height))
if (have_outputs && !xf86PickCrtcs (scrn, crtcs, modes, 0, width, height))
{
free(crtcs);
free(modes);
@ -2468,6 +2479,13 @@ xf86InitialConfiguration (ScrnInfoPtr scrn, Bool canGrow)
*/
xf86DefaultScreenLimits (scrn, &width, &height, canGrow);
if (have_outputs == FALSE) {
if (width < NO_OUTPUT_DEFAULT_WIDTH && height < NO_OUTPUT_DEFAULT_HEIGHT) {
width = NO_OUTPUT_DEFAULT_WIDTH;
height = NO_OUTPUT_DEFAULT_HEIGHT;
}
}
scrn->display->virtualX = width;
scrn->display->virtualY = height;
}
@ -2493,8 +2511,17 @@ xf86InitialConfiguration (ScrnInfoPtr scrn, Bool canGrow)
width, height);
}
/* Mirror output modes to scrn mode list */
xf86SetScrnInfoModes (scrn);
if (have_outputs) {
/* Mirror output modes to scrn mode list */
xf86SetScrnInfoModes (scrn);
} else {
/* Clear any existing modes from scrn->modes */
while (scrn->modes != NULL)
xf86DeleteMode(&scrn->modes, scrn->modes);
scrn->modes = xf86ModesAdd(scrn->modes,
xf86CVTMode(width, height, 60, 0, 0));
}
free(crtcs);
free(modes);