Add basic RandR 1.2 support.

1 files changed, 142 insertions, 0 deletions

diff --git a/src/glamo-output.c b/src/glamo-output.c
new file mode 100644
index 0000000..5a09ee0
--- /dev/null
+++ b/src/glamo-output.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright © 2009 Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+
+#include "xf86i2c.h"
+#include "xf86Crtc.h"
+
+#include "fbdevhw.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "glamo.h"
+
+static const char *display_state_switch_path = "/sys/bus/spi/devices/spi2.0/state";
+static const char *display_state_vga = "normal";
+static const char *display_state_qvga = "qvga-normal";
+
+static void GlamoOutputDPMS(xf86OutputPtr output, int mode) {}
+static xf86OutputStatus GlamoOutputDetect(xf86OutputPtr output);
+static Bool GlamoOutputModeFixup(xf86OutputPtr output, DisplayModePtr mode,
+                     DisplayModePtr mode_adjusted);
+static void GlamoOutputPrepare(xf86OutputPtr output);
+static void GlamoOutputModeSet(xf86OutputPtr output, DisplayModePtr mode,
+                   DisplayModePtr adjusted_mode);
+static int GlamoOutputModeValid(xf86OutputPtr output, DisplayModePtr mode);
+static Bool GlamoOutputModeFixup(xf86OutputPtr output, DisplayModePtr mode,
+                  DisplayModePtr mode_adjusted);
+static void GlamoOutputPrepare(xf86OutputPtr output);
+static void GlamoOutputModeSet(xf86OutputPtr output, DisplayModePtr mode,
+                  DisplayModePtr adjusted_mode);
+static void GlamoOutputCommit(xf86OutputPtr output);
+static void GlamoOutputDestroy(xf86OutputPtr output);
+static DisplayModePtr GlamoOutputGetModes(xf86OutputPtr output);
+
+static const xf86OutputFuncsRec glamo_output_funcs = {
+    .create_resources = NULL,
+    .dpms = GlamoOutputDPMS,
+    .save = NULL,
+    .restore = NULL,
+    .mode_valid = GlamoOutputModeValid,
+    .mode_fixup = GlamoOutputModeFixup,
+    .prepare = GlamoOutputPrepare,
+    .commit = GlamoOutputCommit,
+    .mode_set = GlamoOutputModeSet,
+    .detect = GlamoOutputDetect,
+    .get_modes = GlamoOutputGetModes,
+#ifdef RANDR_12_INTERFACE
+    .set_property = NULL,
+#endif
+    .destroy = GlamoOutputDestroy
+};
+
+void
+GlamoOutputInit(ScrnInfoPtr pScrn) {
+    xf86OutputPtr output;
+    output = xf86OutputCreate(pScrn, &glamo_output_funcs, "LCD");
+    output->possible_crtcs = 1;
+    output->possible_clones = 0;
+}
+
+static xf86OutputStatus
+GlamoOutputDetect(xf86OutputPtr output) {
+    return XF86OutputStatusConnected;
+}
+
+static int
+GlamoOutputModeValid(xf86OutputPtr output, DisplayModePtr mode) {
+    return MODE_OK;
+    /*return fbdevHWValidMode(output->scrn->scrnIndex, mode, FALSE, 0);*/
+}
+
+static Bool
+GlamoOutputModeFixup(xf86OutputPtr output, DisplayModePtr mode,
+                  DisplayModePtr mode_adjusted) {
+    return TRUE;
+}
+
+static void
+GlamoOutputPrepare(xf86OutputPtr output) {
+}
+
+static void
+GlamoOutputModeSet(xf86OutputPtr output, DisplayModePtr mode,
+                  DisplayModePtr adjusted_mode) {
+}
+
+static void
+GlamoOutputCommit(xf86OutputPtr output) {
+    int fd = open(display_state_switch_path, O_WRONLY);
+    if (fd != -1) {
+        if(output->crtc->mode.HDisplay == 240 && output->crtc->mode.VDisplay == 320)
+            write(fd, display_state_qvga, strlen(display_state_qvga));
+        else
+            write(fd, display_state_vga, strlen(display_state_vga));
+        close(fd);
+    } else {
+        xf86DrvMsg(output->scrn->scrnIndex, X_ERROR,
+                   "Couldn't open %s to change display resolution: %s\n",
+                   display_state_switch_path, strerror(errno));
+    }
+}
+
+static void GlamoOutputDestroy(xf86OutputPtr output) {
+}
+
+static DisplayModePtr GlamoOutputGetModes(xf86OutputPtr output) {
+    GlamoPtr pGlamo = GlamoPTR(output->scrn);
+
+    output->mm_width = pGlamo->fb_var.width;
+    output->mm_height = pGlamo->fb_var.height;
+
+    return NULL;
+    /*return fbdevHWGetBuildinMode(output->scrn);*/
+}
+