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authorDave Airlie <airlied@redhat.com>2010-05-23 23:31:51 (GMT)
committerKeith Packard <keithp@keithp.com>2010-05-24 00:30:09 (GMT)
commit5939e39a641773a36c22104e1184143678dca7a2 (patch)
tree744f1038b843be72390779e5c5473f0c0061478e
parentb9f48d60bc0c839bd323c582231e8e7e2b810af6 (diff)
xf86: allow for no outputs connected at startup operation.
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>
-rw-r--r--hw/xfree86/modes/xf86Crtc.c61
1 files changed, 44 insertions, 17 deletions
diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c
index 8b9ec41..065ba48 100644
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -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);