Initial KMS stuff

1 files changed, 144 insertions, 0 deletions

diff --git a/drivers/mfd/glamo/glamo-display.c b/drivers/mfd/glamo/glamo-display.c
new file mode 100644
index 00000000000..b129b8da455
--- /dev/null
+++ b/drivers/mfd/glamo/glamo-display.c
@@ -0,0 +1,144 @@
+/*
+ * SMedia Glamo 336x/337x display
+ *
+ * Copyright (C) 2008-2009 Thomas White <taw@bitwiz.org.uk>
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+
+#include <drm/drmP.h>
+#include <drm/glamo_drm.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_crtc.h>
+
+#include "glamo-core.h"
+#include "glamo-drm-private.h"
+#include "glamo-regs.h"
+
+
+static void glamo_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+}
+
+
+static bool glamo_crtc_mode_fixup(struct drm_crtc *crtc,
+                                  struct drm_display_mode *mode,
+                                  struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+
+static void glamo_crtc_mode_set(struct drm_crtc *crtc,
+                                struct drm_display_mode *mode,
+                                struct drm_display_mode *adjusted_mode,
+                                int x, int y,
+                                struct drm_framebuffer *old_fb)
+{
+}
+
+
+
+static void glamo_pipe_set_base(struct drm_crtc *crtc, int x, int y,
+                                struct drm_framebuffer *old_fb)
+{
+}
+
+
+static void glamo_crtc_prepare(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
+
+static void glamo_crtc_commit(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+
+static int glamo_crtc_cursor_set(struct drm_crtc *crtc,
+                                 struct drm_file *file_priv,
+                                 uint32_t handle,
+                                 uint32_t width, uint32_t height)
+{
+	return 0;
+}
+
+
+static int glamo_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
+{
+	return 0;
+}
+
+
+static void glamo_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
+                                 u16 *blue, uint32_t size)
+{
+}
+
+
+static void glamo_crtc_destroy(struct drm_crtc *crtc)
+{
+	struct glamo_crtc *glamo_crtc = to_glamo_crtc(crtc);
+
+	drm_crtc_cleanup(crtc);
+	kfree(glamo_crtc);
+}
+
+
+static const struct drm_crtc_helper_funcs glamo_helper_funcs = {
+	.dpms = glamo_crtc_dpms,
+	.mode_fixup = glamo_crtc_mode_fixup,
+	.mode_set = glamo_crtc_mode_set,
+	.mode_set_base = glamo_pipe_set_base,
+	.prepare = glamo_crtc_prepare,
+	.commit = glamo_crtc_commit,
+};
+
+
+static const struct drm_crtc_funcs glamo_crtc_funcs = {
+	.cursor_set = glamo_crtc_cursor_set,
+	.cursor_move = glamo_crtc_cursor_move,
+	.gamma_set = glamo_crtc_gamma_set,
+	.set_config = drm_crtc_helper_set_config,
+	.destroy = glamo_crtc_destroy,
+};
+
+
+int glamo_display_init(struct drm_device *dev)
+{
+	struct glamodrm_handle *gdrm;
+	struct glamo_crtc *glamo_crtc;
+
+	glamo_crtc = kzalloc(sizeof(struct glamo_crtc)
+	                   + sizeof(struct drm_connector *), GFP_KERNEL);
+	if (glamo_crtc == NULL)
+		return 1;
+
+	gdrm = dev->dev_private;
+
+	drm_crtc_init(dev, &glamo_crtc->base, &glamo_crtc_funcs);
+	drm_crtc_helper_add(&glamo_crtc->base, &glamo_helper_funcs);
+
+	return 0;
+}