/* radeon_drv.c -- ATI Radeon driver -*- linux-c -*-
 * Created: Wed Feb 14 17:10:04 2001 by gareth@valinux.com
 */
/*-
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * 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, 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 (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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS 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:
 *    Gareth Hughes <gareth@valinux.com>
 *
 */

#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon_drv.h"
#include "drm_pciids.h"

int radeon_no_wb;

/* drv_PCI_IDs comes from drm_pciids.h, generated from drm_pciids.txt. */
static drm_pci_id_list_t radeon_pciidlist[] = {
	radeon_PCI_IDS
};

static void radeon_configure(struct drm_device *dev)
{
	dev->driver->driver_features =
	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA |
	    DRIVER_SG | DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ;

	dev->driver->buf_priv_size	= sizeof(drm_radeon_buf_priv_t);
	dev->driver->load		= radeon_driver_load;
	dev->driver->unload		= radeon_driver_unload;
	dev->driver->firstopen		= radeon_driver_firstopen;
	dev->driver->open		= radeon_driver_open;
	dev->driver->preclose		= radeon_driver_preclose;
	dev->driver->postclose		= radeon_driver_postclose;
	dev->driver->lastclose		= radeon_driver_lastclose;
	dev->driver->get_vblank_counter	= radeon_get_vblank_counter;
	dev->driver->enable_vblank	= radeon_enable_vblank;
	dev->driver->disable_vblank	= radeon_disable_vblank;
	dev->driver->irq_preinstall	= radeon_driver_irq_preinstall;
	dev->driver->irq_postinstall	= radeon_driver_irq_postinstall;
	dev->driver->irq_uninstall	= radeon_driver_irq_uninstall;
	dev->driver->irq_handler	= radeon_driver_irq_handler;
	dev->driver->dma_ioctl		= radeon_cp_buffers;

	dev->driver->ioctls		= radeon_ioctls;
	dev->driver->max_ioctl		= radeon_max_ioctl;

	dev->driver->name		= DRIVER_NAME;
	dev->driver->desc		= DRIVER_DESC;
	dev->driver->date		= DRIVER_DATE;
	dev->driver->major		= DRIVER_MAJOR;
	dev->driver->minor		= DRIVER_MINOR;
	dev->driver->patchlevel		= DRIVER_PATCHLEVEL;
}

#if defined(__FreeBSD__)
static int
radeon_probe(device_t kdev)
{
	return drm_probe(kdev, radeon_pciidlist);
}

static int
radeon_attach(device_t kdev)
{
	struct drm_device *dev = device_get_softc(kdev);

	dev->driver = malloc(sizeof(struct drm_driver_info), DRM_MEM_DRIVER,
	    M_WAITOK | M_ZERO);

	radeon_configure(dev);

	return drm_attach(kdev, radeon_pciidlist);
}

static int
radeon_detach(device_t kdev)
{
	struct drm_device *dev = device_get_softc(kdev);
	int ret;

	ret = drm_detach(kdev);

	free(dev->driver, DRM_MEM_DRIVER);

	return ret;
}

static device_method_t radeon_methods[] = {
	/* Device interface */
	DEVMETHOD(device_probe,		radeon_probe),
	DEVMETHOD(device_attach,	radeon_attach),
	DEVMETHOD(device_detach,	radeon_detach),

	{ 0, 0 }
};

static driver_t radeon_driver = {
	"drm",
	radeon_methods,
	sizeof(struct drm_device)
};

extern devclass_t drm_devclass;
#if __FreeBSD_version >= 700010
DRIVER_MODULE(radeon, vgapci, radeon_driver, drm_devclass, 0, 0);
#else
DRIVER_MODULE(radeon, pci, radeon_driver, drm_devclass, 0, 0);
#endif
MODULE_DEPEND(radeon, drm, 1, 1, 1);

#elif   defined(__NetBSD__)

static bool
radeondrm_suspend(device_t self, const pmf_qual_t *qual)
{
	struct drm_device *dev = device_private(self);
	drm_radeon_cp_stop_t stop_args;
	bool rv = true;

	stop_args.flush = stop_args.idle = 0;
	DRM_LOCK();
	if (drm_find_file_by_proc(dev, curlwp->l_proc) &&
	    radeon_cp_stop(dev, &stop_args, dev->lock.file_priv) != 0)
		rv = false;
	DRM_UNLOCK();

	return rv;
}

static bool
radeondrm_resume(device_t self, const pmf_qual_t *qual)
{
	struct drm_device *dev = device_private(self);
	bool rv = true;

	DRM_LOCK();
	if (drm_find_file_by_proc(dev, curlwp->l_proc) &&
	    radeon_cp_resume(dev, NULL, NULL) != 0)
		rv =  false;
	DRM_UNLOCK();
	
	return rv;
}

static int
radeondrm_probe(device_t parent, cfdata_t match, void *aux)
{
	struct pci_attach_args *pa = aux;
	return drm_probe(pa, radeon_pciidlist);
}

static void
radeondrm_attach(device_t parent, device_t self, void *aux)
{
	struct pci_attach_args *pa = aux;
	struct drm_device *dev = device_private(self);

	dev->driver = malloc(sizeof(struct drm_driver_info), DRM_MEM_DRIVER,
	    M_WAITOK | M_ZERO);

	radeon_configure(dev);

	if (!pmf_device_register(self, radeondrm_suspend, radeondrm_resume))
		aprint_error_dev(self, "couldn't establish power handler\n");

	drm_attach(self, pa, radeon_pciidlist);
}

static int
radeondrm_detach(device_t self, int flags)
{
	pmf_device_deregister(self);

	return drm_detach(self, flags);
}

CFATTACH_DECL_NEW(radeondrm, sizeof(struct drm_device),
    radeondrm_probe, radeondrm_attach, radeondrm_detach, NULL);

MODULE(MODULE_CLASS_DRIVER, radeondrm, "drm,ati_pcigart");

#ifdef _MODULE
#include "ioconf.c"
#endif

static int
radeondrm_modcmd(modcmd_t cmd, void *arg)
{
	int error = 0;

	switch (cmd) {
	case MODULE_CMD_INIT:
#ifdef _MODULE
		error = config_init_component(cfdriver_ioconf_radeondrm,
		    cfattach_ioconf_radeondrm, cfdata_ioconf_radeondrm);
#endif
		break;
	case MODULE_CMD_FINI:
#ifdef _MODULE
		error = config_fini_component(cfdriver_ioconf_radeondrm,
		    cfattach_ioconf_radeondrm, cfdata_ioconf_radeondrm);
#endif
		break;
	default:
		return ENOTTY;
	}

	return error;
}

#include <dev/firmload.h>

int radeon_load_a_microcode(const char *fmt, const char *chip_name, void **codep, size_t *sizep)
{
	firmware_handle_t fh;
	char fw_name[30];
	int error;

	snprintf(fw_name, sizeof(fw_name), fmt, chip_name);
	if ((error = firmware_open("radeon", fw_name, &fh)) != 0) {
		DRM_ERROR("Cannot open radeon/%s firmware: %d\n", fw_name, error);
		return error;
	}
	*sizep = firmware_get_size(fh);
	if ((*codep = firmware_malloc(*sizep)) == NULL) {
		DRM_ERROR("Cannot alloc memory for radeon/%s firmware\n", chip_name);
		firmware_close(fh);
		return ENOMEM;
	}
	if ((error = firmware_read(fh, 0, *codep, *sizep)) != 0) {
		DRM_ERROR("Cannot read radeon/%s firmware: %d\n", chip_name, error);
		firmware_free(*codep, *sizep);
	}
	firmware_close(fh);

	return error;
}

void radeon_free_a_microcode(void *code, size_t size)
{
	firmware_free(code, size);
}

#endif