First stab at RandR 1.2. This will only work on G450/G550 cards.

1 files changed, 196 insertions, 0 deletions

diff --git a/src/mga_2064_output.c b/src/mga_2064_output.c
new file mode 100644
index 0000000..d4c655c
--- /dev/null
+++ b/src/mga_2064_output.c
@@ -0,0 +1,196 @@
+/*
+ * Copyright 2007 Tilman Sauerbeck
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software")
+ * to deal in the software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * them Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTIBILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT, OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Tilman Sauerbeck <tilman@code-monkey.de>
+ *
+ * Sources:
+ *    xf86-video-intel
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "xf86.h"
+#include "xf86i2c.h"
+#include "xf86Crtc.h"
+
+#include "mga_reg.h"
+#include "mga.h"
+
+#define MGAOUTPUTDATAPTR(p) ((MgaOutputDataPtr) ((p)->driver_private))
+
+typedef struct {
+    I2CBusPtr ddc_bus;
+} MgaOutputDataRec, *MgaOutputDataPtr;
+
+static void output_dpms(xf86OutputPtr output, int mode);
+static int output_mode_valid(xf86OutputPtr output, DisplayModePtr mode);
+static int output_mode_fixup(xf86OutputPtr output, DisplayModePtr mode,
+                             DisplayModePtr adjusted_mode);
+static void output_prepare(xf86OutputPtr output);
+static void output_mode_set(xf86OutputPtr output, DisplayModePtr mode,
+                            DisplayModePtr adjusted_mode);
+static void output_commit(xf86OutputPtr output);
+static xf86OutputStatus output_detect(xf86OutputPtr output);
+static DisplayModePtr output_get_modes(xf86OutputPtr output);
+static void output_destroy(xf86OutputPtr output);
+
+static const xf86OutputFuncsRec output_funcs = {
+    .dpms = output_dpms,
+    .mode_valid = output_mode_valid,
+    .mode_fixup = output_mode_fixup,
+    .prepare = output_prepare,
+    .mode_set = output_mode_set,
+    .commit = output_commit,
+    .detect = output_detect,
+    .get_modes = output_get_modes,
+    .destroy = output_destroy
+};
+
+static void
+output_dpms(xf86OutputPtr output, int mode)
+{
+    /* FIXME
+     *
+     * Prefer an implementation that doesn't depend on VGA specifics.
+     */
+
+    MGAPtr pMga = MGAPTR(output->scrn);
+    CARD8 seq1, crtcext1;
+
+    OUTREG8(MGAREG_SEQ_INDEX, 0x01); /* Select SEQ1 */
+    OUTREG8(MGAREG_CRTCEXT_INDEX, 0x01); /* Select CRTCEXT1 */
+
+    seq1 = INREG8(MGAREG_SEQ_DATA);
+    seq1 &= ~MGAREG_SEQ1_SCREEN_OFF;
+
+    crtcext1 = INREG8(MGAREG_CRTCEXT_DATA);
+    crtcext1 &= ~MGAREG_CRTCEXT1_HSYNC_OFF;
+    crtcext1 &= ~MGAREG_CRTCEXT1_VSYNC_OFF;
+
+    switch (mode) {
+    case DPMSModeOn:
+        /* nothing to do */
+        break;
+    case DPMSModeStandby:
+        seq1 |= MGAREG_SEQ1_SCREEN_OFF;
+        crtcext1 = MGAREG_CRTCEXT1_HSYNC_OFF;
+        break;
+    case DPMSModeSuspend:
+        seq1 |= MGAREG_SEQ1_SCREEN_OFF;
+        crtcext1 |= MGAREG_CRTCEXT1_VSYNC_OFF;
+        break;
+    case DPMSModeOff:
+        seq1 |= MGAREG_SEQ1_SCREEN_OFF;
+        crtcext1 |= MGAREG_CRTCEXT1_HSYNC_OFF;
+        crtcext1 |= MGAREG_CRTCEXT1_VSYNC_OFF;
+        break;
+    }
+
+    OUTREG8(MGAREG_SEQ_DATA, seq1);
+    OUTREG8(MGAREG_CRTCEXT_DATA, crtcext1);
+}
+
+static int
+output_mode_valid(xf86OutputPtr output, DisplayModePtr mode)
+{
+    return MODE_OK;
+}
+
+static int
+output_mode_fixup(xf86OutputPtr output, DisplayModePtr mode,
+                   DisplayModePtr pAdjustedMode)
+{
+    return TRUE;
+}
+
+static void
+output_prepare(xf86OutputPtr output)
+{
+}
+
+static void
+output_mode_set(xf86OutputPtr output, DisplayModePtr mode,
+                DisplayModePtr adjusted_mode)
+{
+}
+
+static void
+output_commit(xf86OutputPtr output)
+{
+}
+
+static xf86OutputStatus
+output_detect(xf86OutputPtr output)
+{
+    MgaOutputDataPtr data = MGAOUTPUTDATAPTR(output);
+
+    /* 0xa0 is DDC EEPROM address */
+    if (xf86I2CProbeAddress(data->ddc_bus, 0xa0))
+        return XF86OutputStatusConnected;
+    else
+        return XF86OutputStatusUnknown;
+}
+
+static DisplayModePtr
+output_get_modes(xf86OutputPtr output)
+{
+    MgaOutputDataPtr data = MGAOUTPUTDATAPTR(output);
+    xf86MonPtr mon;
+
+    mon = xf86OutputGetEDID(output, data->ddc_bus);
+    xf86OutputSetEDID(output, mon);
+
+    return xf86OutputGetEDIDModes(output);
+}
+
+static void
+output_destroy(xf86OutputPtr output)
+{
+    if (output->driver_private)
+        xfree(output->driver_private);
+}
+
+xf86OutputPtr
+MgaOutput2064New(ScrnInfoPtr scrn)
+{
+    MGAPtr pMga = MGAPTR(scrn);
+    xf86OutputPtr output;
+    MgaOutputDataPtr data;
+
+    data = xnfcalloc(sizeof(MgaOutputDataRec), 1);
+    if (!data)
+        return NULL;
+
+    output = xf86OutputCreate(scrn, &output_funcs, "VGA 1");
+    if (!output) {
+        xfree(data);
+        return NULL;
+    }
+
+    output->driver_private = data;
+
+    data->ddc_bus = pMga->DDC_Bus1;
+
+    return output;
+}