/*
 * KMS Support for the SMedia Glamo3362 X.org Driver
 *
 * Modified: 2009 by Thomas White <taw@bitwiz.org.uk>
 *
 * Based on output.c from xf86-video-modesetting, to which the following
 * notice applies:
 *
 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * 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 the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the 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
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
 *
 *
 * Author: Alan Hourihane <alanh@tungstengraphics.com>
 *
 */


#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <xf86.h>
#include <xf86i2c.h>
#include <xf86Crtc.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#define DPMS_SERVER
#include <X11/extensions/dpmsconst.h>
#include <X11/Xatom.h>
#include <xf86drmMode.h>

#include "glamo.h"
#include "glamo-kms-output.h"


static char *connector_enum_list[] = {
    "Unknown",
    "VGA",
    "DVI-I",
    "DVI-D",
    "DVI-A",
    "Composite",
    "SVIDEO",
    "LVDS",
    "Component",
    "9-pin DIN",
    "DisplayPort",
    "HDMI Type A",
    "HDMI Type B",
};


static void dpms(xf86OutputPtr output, int mode)
{
}


static void save(xf86OutputPtr output)
{
}


static void restore(xf86OutputPtr output)
{
}


static int mode_valid(xf86OutputPtr output, DisplayModePtr pMode)
{
	return MODE_OK;
}


static Bool mode_fixup(xf86OutputPtr output, DisplayModePtr mode,
                       DisplayModePtr adjusted_mode)
{
	return TRUE;
}


static void prepare(xf86OutputPtr output)
{
	dpms(output, DPMSModeOff);
}


static void mode_set(xf86OutputPtr output, DisplayModePtr mode,
	 DisplayModePtr adjusted_mode)
{
}


static void commit(xf86OutputPtr output)
{
	dpms(output, DPMSModeOn);
}


static xf86OutputStatus detect(xf86OutputPtr output)
{
	drmModeConnectorPtr drm_connector = output->driver_private;

	switch (drm_connector->connection) {
	case DRM_MODE_CONNECTED:
		return XF86OutputStatusConnected;
	case DRM_MODE_DISCONNECTED:
		return XF86OutputStatusDisconnected;
	default:
		return XF86OutputStatusUnknown;
	}
}


static DisplayModePtr get_modes(xf86OutputPtr output)
{
	drmModeConnectorPtr drm_connector = output->driver_private;
	drmModeModeInfoPtr drm_mode = NULL;
	DisplayModePtr modes = NULL, mode = NULL;
	int i;

	for (i = 0; i < drm_connector->count_modes; i++) {
		drm_mode = &drm_connector->modes[i];
		if (drm_mode) {
			mode = calloc(1, sizeof(DisplayModeRec));
			if (!mode)
				continue;
			mode->type = 0;
			mode->Clock = drm_mode->clock / 1000.0;
			mode->HDisplay = drm_mode->hdisplay;
			mode->HSyncStart = drm_mode->hsync_start;
			mode->HSyncEnd = drm_mode->hsync_end;
			mode->HTotal = drm_mode->htotal;
			mode->VDisplay = drm_mode->vdisplay;
			mode->VSyncStart = drm_mode->vsync_start;
			mode->VSyncEnd = drm_mode->vsync_end;
			mode->VTotal = drm_mode->vtotal;
			mode->Flags = drm_mode->flags;
			mode->HSkew = drm_mode->hskew;
			mode->VScan = drm_mode->vscan;
			mode->VRefresh = xf86ModeVRefresh(mode);
			mode->Private = (void *)drm_mode;
			xf86SetModeDefaultName(mode);
			modes = xf86ModesAdd(modes, mode);
			xf86PrintModeline(0, mode);
		}
	}

	return modes;
}


static void destroy(xf86OutputPtr output)
{
	drmModeFreeConnector(output->driver_private);
}


static void create_resources(xf86OutputPtr output)
{
#ifdef RANDR_12_INTERFACE
#endif /* RANDR_12_INTERFACE */
}


#ifdef RANDR_12_INTERFACE
static Bool set_property(xf86OutputPtr output, Atom property,
                         RRPropertyValuePtr value)
{
	return TRUE;
}
#endif /* RANDR_12_INTERFACE */


#ifdef RANDR_13_INTERFACE
static Bool get_property(xf86OutputPtr output, Atom property)
{
	return TRUE;
}
#endif /* RANDR_13_INTERFACE */


#ifdef RANDR_GET_CRTC_INTERFACE
static xf86CrtcPtr get_crtc(xf86OutputPtr output)
{
	return NULL;
}
#endif


static const xf86OutputFuncsRec output_funcs = {
	.create_resources = create_resources,
	.dpms = dpms,
	.save = save,
	.restore = restore,
	.mode_valid = mode_valid,
	.mode_fixup = mode_fixup,
	.prepare = prepare,
	.mode_set = mode_set,
	.commit = commit,
	.detect = detect,
	.get_modes = get_modes,
#ifdef RANDR_12_INTERFACE
	.set_property = set_property,
#endif
#ifdef RANDR_13_INTERFACE
	.get_property = get_property,
#endif
	.destroy = destroy,
#ifdef RANDR_GET_CRTC_INTERFACE
	.get_crtc = get_crtc,
#endif
};


void output_init(ScrnInfoPtr pScrn)
{
	GlamoPtr pGlamo = GlamoPTR(pScrn);
	xf86OutputPtr output;
	drmModeResPtr res;
	drmModeConnectorPtr drm_connector = NULL;
	drmModeEncoderPtr drm_encoder = NULL;
	char *name;
	int c, v, p;

	res = drmModeGetResources(pGlamo->drm_fd);
	if (res == 0) {
		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
		           "Failed drmModeGetResources\n");
		return;
	}

	for (c = 0; c < res->count_connectors; c++) {
		drm_connector = drmModeGetConnector(pGlamo->drm_fd,
		                                    res->connectors[c]);
		if (!drm_connector)
		goto out;

		for (p = 0; p < drm_connector->count_props; p++) {
			drmModePropertyPtr prop;

			prop = drmModeGetProperty(pGlamo->drm_fd,
				                  drm_connector->props[p]);

			name = NULL;
			if (prop) {
				ErrorF("VALUES %d\n", prop->count_values);
				for (v = 0; v < prop->count_values; v++) {
					ErrorF("%s %lld\n", prop->name,
					                    prop->values[v]);
				}
			}
		}

		name = connector_enum_list[drm_connector->connector_type];

		output = xf86OutputCreate(pScrn, &output_funcs, name);
		if (!output)
			continue;

		drm_encoder = drmModeGetEncoder(pGlamo->drm_fd,
			                        drm_connector->encoders[0]);
		if (drm_encoder) {
			output->possible_crtcs = drm_encoder->possible_crtcs;
			output->possible_clones = drm_encoder->possible_clones;
		} else {
			output->possible_crtcs = 0;
			output->possible_clones = 0;
		}
		output->driver_private = drm_connector;
		output->subpixel_order = SubPixelHorizontalRGB;
		output->interlaceAllowed = FALSE;
		output->doubleScanAllowed = FALSE;
	}

out:
	drmModeFreeResources(res);
}