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/*

 * Copyright © 2009 Intel Corporation

 *

 * 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 PRECISION INSIGHT 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.

 *

 * Authors:

 *    Xiang Haihao 

 *    Zou Nan hai 

 *

 */

#include "sysdeps.h"

#include 

#include "intel_batchbuffer.h"

#include "intel_memman.h"

#include "intel_driver.h"

uint32_t g_intel_debug_option_flags = 0;

#ifdef I915_PARAM_HAS_BSD2

#define LOCAL_I915_PARAM_HAS_BSD2 I915_PARAM_HAS_BSD2

#endif

#ifndef LOCAL_I915_PARAM_HAS_BSD2

#define LOCAL_I915_PARAM_HAS_BSD2	30

#endif

static Bool

intel_driver_get_param(struct intel_driver_data *intel, int param, int *value)

{

   struct drm_i915_getparam gp;

   gp.param = param;

   gp.value = value;

   return drmIoctl(intel->fd, DRM_IOCTL_I915_GETPARAM, &gp) == 0;

//   return drmCommandWriteRead(intel->fd, DRM_I915_GETPARAM, &gp, sizeof(gp)) == 0;

}

static void intel_driver_get_revid(struct intel_driver_data *intel, int *value)

{

#if 0

#define PCI_REVID	8

	FILE *fp;

	char config_data[16];

	fp = fopen("/sys/devices/pci0000:00/0000:00:02.0/config", "r");

        if (fp) {

            if (fread(config_data, 1, 16, fp))

                *value = config_data[PCI_REVID];

            else

                *value = 2; /* assume it is at least  B-steping */

            fclose(fp);

        } else {

            *value = 2; /* assume it is at least  B-steping */

        }

#endif

    *value = 2;

	return;

}

extern const struct intel_device_info *i965_get_device_info(int devid);

bool

intel_driver_init(VADriverContextP ctx)

{

    struct intel_driver_data *intel = intel_driver_data(ctx);

    struct drm_state * const drm_state = (struct drm_state *)ctx->drm_state;

    int has_exec2 = 0, has_bsd = 0, has_blt = 0, has_vebox = 0;

    int ret_value = 0;

    g_intel_debug_option_flags = 0;

//    if ((env_str = getenv("VA_INTEL_DEBUG")))

//        g_intel_debug_option_flags = atoi(env_str);

//    if (g_intel_debug_option_flags)

//        fprintf(stderr, "g_intel_debug_option_flags:%x\n", g_intel_debug_option_flags);

    assert(drm_state);

    intel->fd = drm_state->fd;

    intel->dri2Enabled = 1;

    intel->locked = 0;

//    pthread_mutex_init(&intel->ctxmutex, NULL);

    intel_memman_init(intel);

    intel->device_id = drm_intel_bufmgr_gem_get_devid(intel->bufmgr);

    intel->device_info = i965_get_device_info(intel->device_id);

    if (!intel->device_info)

        return false;

    if (intel_driver_get_param(intel, I915_PARAM_HAS_EXECBUF2, &has_exec2))

        intel->has_exec2 = has_exec2;

    if (intel_driver_get_param(intel, I915_PARAM_HAS_BSD, &has_bsd))

        intel->has_bsd = has_bsd;

    if (intel_driver_get_param(intel, I915_PARAM_HAS_BLT, &has_blt))

        intel->has_blt = has_blt;

    if (intel_driver_get_param(intel, I915_PARAM_HAS_VEBOX, &has_vebox))

        intel->has_vebox = !!has_vebox;

    intel->has_bsd2 = 0;

    if (intel_driver_get_param(intel, LOCAL_I915_PARAM_HAS_BSD2, &ret_value))

        intel->has_bsd2 = !!ret_value;

    intel_driver_get_revid(intel, &intel->revision);

    return true;

}

void

intel_driver_terminate(VADriverContextP ctx)

{

    struct intel_driver_data *intel = intel_driver_data(ctx);

    intel_memman_terminate(intel);

//    pthread_mutex_destroy(&intel->ctxmutex);

}