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 

#include 

#include 

#include 

#include "radeon_reg.h"

#include "radeon.h"

#include "radeon_asic.h"

#include "r100d.h"

#include "rs100d.h"

#include "rv200d.h"

#include "rv250d.h"

#include "atom.h"

#include 

#include 

#include "r100_reg_safe.h"

#include "rn50_reg_safe.h"

/* Firmware Names */

#define FIRMWARE_R100		"radeon/R100_cp.bin"

#define FIRMWARE_R200		"radeon/R200_cp.bin"

#define FIRMWARE_R300		"radeon/R300_cp.bin"

#define FIRMWARE_R420		"radeon/R420_cp.bin"

#define FIRMWARE_RS690		"radeon/RS690_cp.bin"

#define FIRMWARE_RS600		"radeon/RS600_cp.bin"

#define FIRMWARE_R520		"radeon/R520_cp.bin"

MODULE_FIRMWARE(FIRMWARE_R100);

MODULE_FIRMWARE(FIRMWARE_R200);

MODULE_FIRMWARE(FIRMWARE_R300);

MODULE_FIRMWARE(FIRMWARE_R420);

MODULE_FIRMWARE(FIRMWARE_RS690);

MODULE_FIRMWARE(FIRMWARE_RS600);

MODULE_FIRMWARE(FIRMWARE_R520);

/* This files gather functions specifics to:

 * r100,rv100,rs100,rv200,rs200,r200,rv250,rs300,rv280

 * and others in some cases.

 */

static bool r100_is_in_vblank(struct radeon_device *rdev, int crtc)

{

	if (crtc == 0) {

		if (RREG32(RADEON_CRTC_STATUS) & RADEON_CRTC_VBLANK_CUR)

			return true;

		else

			return false;

	} else {

		if (RREG32(RADEON_CRTC2_STATUS) & RADEON_CRTC2_VBLANK_CUR)

			return true;

		else

			return false;

	}

}

static bool r100_is_counter_moving(struct radeon_device *rdev, int crtc)

{

	u32 vline1, vline2;

	if (crtc == 0) {

		vline1 = (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;

		vline2 = (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;

	} else {

		vline1 = (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;

		vline2 = (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE) >> 16) & RADEON_CRTC_V_TOTAL;

	}

	if (vline1 != vline2)

		return true;

	else

		return false;

}

/**

 * r100_wait_for_vblank - vblank wait asic callback.

 *

 * @rdev: radeon_device pointer

 * @crtc: crtc to wait for vblank on

 *

 * Wait for vblank on the requested crtc (r1xx-r4xx).

 */

void r100_wait_for_vblank(struct radeon_device *rdev, int crtc)

{

	unsigned i = 0;

	if (crtc >= rdev->num_crtc)

		return;

	if (crtc == 0) {

		if (!(RREG32(RADEON_CRTC_GEN_CNTL) & RADEON_CRTC_EN))

			return;

	} else {

		if (!(RREG32(RADEON_CRTC2_GEN_CNTL) & RADEON_CRTC2_EN))

			return;

	}

	/* depending on when we hit vblank, we may be close to active; if so,

	 * wait for another frame.

	 */

	while (r100_is_in_vblank(rdev, crtc)) {

		if (i++ % 100 == 0) {

			if (!r100_is_counter_moving(rdev, crtc))

					break;

			}

		}

	while (!r100_is_in_vblank(rdev, crtc)) {

		if (i++ % 100 == 0) {

			if (!r100_is_counter_moving(rdev, crtc))

					break;

		}

	}

}

u32 r100_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)

{

	struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];

	u32 tmp = ((u32)crtc_base) | RADEON_CRTC_OFFSET__OFFSET_LOCK;

	int i;

	/* Lock the graphics update lock */

	/* update the scanout addresses */

	WREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset, tmp);

	/* Wait for update_pending to go high. */

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

		if (RREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset) & RADEON_CRTC_OFFSET__GUI_TRIG_OFFSET)

			break;

		udelay(1);

	}

	DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n");

	/* Unlock the lock, so double-buffering can take place inside vblank */

	tmp &= ~RADEON_CRTC_OFFSET__OFFSET_LOCK;

	WREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset, tmp);

	/* Return current update_pending status: */

	return RREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset) & RADEON_CRTC_OFFSET__GUI_TRIG_OFFSET;

}

bool r100_gui_idle(struct radeon_device *rdev)

{

	if (RREG32(RADEON_RBBM_STATUS) & RADEON_RBBM_ACTIVE)

		return false;

	else

		return true;

}

/* hpd for digital panel detect/disconnect */

/**

 * r100_hpd_sense - hpd sense callback.

 *

 * @rdev: radeon_device pointer

 * @hpd: hpd (hotplug detect) pin

 *

 * Checks if a digital monitor is connected (r1xx-r4xx).

 * Returns true if connected, false if not connected.

 */

bool r100_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)

{

	bool connected = false;

	switch (hpd) {

	case RADEON_HPD_1:

		if (RREG32(RADEON_FP_GEN_CNTL) & RADEON_FP_DETECT_SENSE)

			connected = true;

		break;

	case RADEON_HPD_2:

		if (RREG32(RADEON_FP2_GEN_CNTL) & RADEON_FP2_DETECT_SENSE)

			connected = true;

		break;

	default:

		break;

	}

	return connected;

}

/**

 * r100_hpd_set_polarity - hpd set polarity callback.

 *

 * @rdev: radeon_device pointer

 * @hpd: hpd (hotplug detect) pin

 *

 * Set the polarity of the hpd pin (r1xx-r4xx).

 */

void r100_hpd_set_polarity(struct radeon_device *rdev,

			   enum radeon_hpd_id hpd)

{

	u32 tmp;

	bool connected = r100_hpd_sense(rdev, hpd);

	switch (hpd) {

	case RADEON_HPD_1:

		tmp = RREG32(RADEON_FP_GEN_CNTL);

		if (connected)

			tmp &= ~RADEON_FP_DETECT_INT_POL;

		else

			tmp |= RADEON_FP_DETECT_INT_POL;

		WREG32(RADEON_FP_GEN_CNTL, tmp);

		break;

	case RADEON_HPD_2:

		tmp = RREG32(RADEON_FP2_GEN_CNTL);

		if (connected)

			tmp &= ~RADEON_FP2_DETECT_INT_POL;

		else

			tmp |= RADEON_FP2_DETECT_INT_POL;

		WREG32(RADEON_FP2_GEN_CNTL, tmp);

		break;

	default:

		break;

	}

}

/**

 * r100_hpd_init - hpd setup callback.

 *