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150 lines
3.9 KiB
C
150 lines
3.9 KiB
C
/* $NetBSD: radeon_module.c,v 1.3 2014/11/12 03:14:00 christos Exp $ */
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/*-
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* Copyright (c) 2014 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Taylor R. Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: radeon_module.c,v 1.3 2014/11/12 03:14:00 christos Exp $");
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#include <sys/types.h>
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#include <sys/module.h>
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#ifndef _MODULE
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#include <sys/once.h>
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#endif
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#include <sys/systm.h>
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#include <drm/drmP.h>
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#include <drm/drm_sysctl.h>
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#include "radeon_drv.h"
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MODULE(MODULE_CLASS_DRIVER, radeon, "drmkms,drmkms_pci"); /* XXX drmkms_i2c, drmkms_ttm */
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#ifdef _MODULE
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#include "ioconf.c"
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#endif
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/* XXX Kludge to get these from radeon_drv.c. */
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extern struct drm_driver *const radeon_drm_driver;
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extern int radeon_max_kms_ioctl;
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struct drm_sysctl_def radeon_def = DRM_SYSCTL_INIT();
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static int
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radeon_init(void)
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{
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extern int drm_guarantee_initialized(void);
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int error;
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error = drm_guarantee_initialized();
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if (error)
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return error;
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radeon_drm_driver->num_ioctls = radeon_max_kms_ioctl;
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radeon_drm_driver->driver_features |= DRIVER_MODESET;
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error = drm_pci_init(radeon_drm_driver, NULL);
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if (error) {
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aprint_error("radeon: failed to init pci: %d\n",
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error);
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return error;
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}
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drm_sysctl_init(&radeon_def);
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return 0;
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}
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int radeon_guarantee_initialized(void); /* XXX */
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int
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radeon_guarantee_initialized(void)
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{
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#ifdef _MODULE
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return 0;
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#else
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static ONCE_DECL(radeon_init_once);
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return RUN_ONCE(&radeon_init_once, &radeon_init);
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#endif
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}
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static void
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radeon_fini(void)
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{
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drm_sysctl_fini(&radeon_def);
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drm_pci_exit(radeon_drm_driver, NULL);
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}
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static int
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radeon_modcmd(modcmd_t cmd, void *arg __unused)
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{
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int error;
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switch (cmd) {
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case MODULE_CMD_INIT:
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/* XXX Kludge it up... Must happen before attachment. */
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#ifdef _MODULE
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error = radeon_init();
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#else
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error = radeon_guarantee_initialized();
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#endif
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if (error) {
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aprint_error("radeon: failed to initialize: %d\n",
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error);
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return error;
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}
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#ifdef _MODULE
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error = config_init_component(cfdriver_ioconf_radeon,
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cfattach_ioconf_radeon, cfdata_ioconf_radeon);
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if (error) {
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aprint_error("radeon: failed to init component"
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": %d\n", error);
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radeon_fini();
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return error;
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}
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#endif
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return 0;
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case MODULE_CMD_FINI:
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#ifdef _MODULE
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error = config_fini_component(cfdriver_ioconf_radeon,
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cfattach_ioconf_radeon, cfdata_ioconf_radeon);
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if (error) {
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aprint_error("radeon: failed to fini component"
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": %d\n", error);
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return error;
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}
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#endif
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radeon_fini();
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return 0;
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default:
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return ENOTTY;
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}
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}
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