Subversion Repositories Kolibri OS

/*

 * Copyright 2008 Advanced Micro Devices, Inc.

 * Copyright 2008 Red Hat Inc.

 * Copyright 2009 Jerome Glisse.

 *

 * 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, sublicense,

 * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL

 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie

 *          Alex Deucher

 *          Jerome Glisse

 */

#include "drmP.h"

#include "drm_crtc_helper.h"

#include "radeon_drm.h"

#include "radeon_reg.h"

#include "radeon.h"

#include "atom.h"

static struct radeon_device *main_device;

#if 0

irqreturn_t radeon_driver_irq_handler_kms(DRM_IRQ_ARGS)

{

	struct drm_device *dev = (struct drm_device *) arg;

	struct radeon_device *rdev = dev->dev_private;

	return radeon_irq_process(rdev);

}

/*

 * Handle hotplug events outside the interrupt handler proper.

 */

static void radeon_hotplug_work_func(struct work_struct *work)

{

	struct radeon_device *rdev = container_of(work, struct radeon_device,

						  hotplug_work);

	struct drm_device *dev = rdev->ddev;

	struct drm_mode_config *mode_config = &dev->mode_config;

	struct drm_connector *connector;

	if (mode_config->num_connector) {

		list_for_each_entry(connector, &mode_config->connector_list, head)

			radeon_connector_hotplug(connector);

	}

	/* Just fire off a uevent and let userspace tell us what to do */

	drm_helper_hpd_irq_event(dev);

}

void radeon_driver_irq_uninstall_kms(struct drm_device *dev)

{

	struct radeon_device *rdev = dev->dev_private;

	unsigned i;

	if (rdev == NULL) {

		return;

	}

	/* Disable *all* interrupts */

	rdev->irq.sw_int = false;

	rdev->irq.gui_idle = false;

	for (i = 0; i < rdev->num_crtc; i++)

		rdev->irq.crtc_vblank_int[i] = false;

	for (i = 0; i < 6; i++) {

		rdev->irq.hpd[i] = false;

		rdev->irq.pflip[i] = false;

	}

	radeon_irq_set(rdev);

}

#endif

void irq_handler_kms()

{

//    dbgprintf("%s\n",__FUNCTION__);

    radeon_irq_process(main_device);

}

static void radeon_irq_preinstall(struct radeon_device *rdev)

{

    unsigned i;

    /* Disable *all* interrupts */

    rdev->irq.sw_int = false;

    rdev->irq.gui_idle = false;

    for (i = 0; i < rdev->num_crtc; i++)

        rdev->irq.crtc_vblank_int[i] = false;

    for (i = 0; i < 6; i++) {

        rdev->irq.hpd[i] = false;

        rdev->irq.pflip[i] = false;

    }

    radeon_irq_set(rdev);

    /* Clear bits */

    radeon_irq_process(rdev);

}

int radeon_driver_irq_postinstall(struct radeon_device *rdev)

{

//    struct radeon_device *rdev = dev->dev_private;

//    dev->max_vblank_count = 0x001fffff;

    rdev->irq.sw_int = true;

    radeon_irq_set(rdev);

    return 0;

}

int radeon_irq_kms_init(struct radeon_device *rdev)

{

	int i;

    int irq_line;

	int r = 0;

    ENTER();

//   INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);

	spin_lock_init(&rdev->irq.sw_lock);

	for (i = 0; i < rdev->num_crtc; i++)

		spin_lock_init(&rdev->irq.pflip_lock[i]);

//   r = drm_vblank_init(rdev->ddev, rdev->num_crtc);

//   if (r) {

//       return r;

//   }

	rdev->msi_enabled = 0;

    rdev->irq.installed = true;

    main_device = rdev;

    radeon_irq_preinstall(rdev);

    irq_line = rdev->pdev->irq;

    dbgprintf("%s install irq %d\n", __FUNCTION__, irq_line);

    AttachIntHandler(irq_line, irq_handler_kms, 2);

//   r = drm_irq_install(rdev->ddev);

    r = radeon_driver_irq_postinstall(rdev);

    if (r) {

       rdev->irq.installed = false;

        LEAVE();

       return r;

   }

	DRM_INFO("radeon: irq initialized.\n");

	return 0;

}

void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev)

{

	unsigned long irqflags;

	spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);

	if (rdev->ddev->irq_enabled && (++rdev->irq.sw_refcount == 1)) {

		rdev->irq.sw_int = true;

		radeon_irq_set(rdev);

	}

	spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);

}

void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev)

{

	unsigned long irqflags;

	spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);

	BUG_ON(rdev->ddev->irq_enabled && rdev->irq.sw_refcount <= 0);

	if (rdev->ddev->irq_enabled && (--rdev->irq.sw_refcount == 0)) {

		rdev->irq.sw_int = false;

		radeon_irq_set(rdev);

	}

	spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);

}

#if 0

void radeon_irq_kms_pflip_irq_get(struct radeon_device *rdev, int crtc)

{

	unsigned long irqflags;

	if (crtc < 0 || crtc >= rdev->num_crtc)

		return;

	spin_lock_irqsave(&rdev->irq.pflip_lock[crtc], irqflags);

	if (rdev->ddev->irq_enabled && (++rdev->irq.pflip_refcount[crtc] == 1)) {

		rdev->irq.pflip[crtc] = true;

		radeon_irq_set(rdev);

	}

	spin_unlock_irqrestore(&rdev->irq.pflip_lock[crtc], irqflags);

}

void radeon_irq_kms_pflip_irq_put(struct radeon_device *rdev, int crtc)

{

	unsigned long irqflags;

	if (crtc < 0 || crtc >= rdev->num_crtc)

		return;

	spin_lock_irqsave(&rdev->irq.pflip_lock[crtc], irqflags);

	BUG_ON(rdev->ddev->irq_enabled && rdev->irq.pflip_refcount[crtc] <= 0);

	if (rdev->ddev->irq_enabled && (--rdev->irq.pflip_refcount[crtc] == 0)) {

		rdev->irq.pflip[crtc] = false;

		radeon_irq_set(rdev);

	}

	spin_unlock_irqrestore(&rdev->irq.pflip_lock[crtc], irqflags);

}

#endif