1 /* $NetBSD: vbox_drv.c,v 1.3 2017/01/20 12:25:07 maya Exp $ */ 2 3 /* 4 * Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: vbox_drv.c,v 1.3 2017/01/20 12:25:07 maya Exp $"); 30 31 #include "drmP.h" 32 #include "drm.h" 33 34 static drm_pci_id_list_t vboxdrm_pciidlist[] = { 35 { 0x80ee, 0xbeef, 0, "VirtualBox Video" }, 36 { 0, 0, 0, NULL }, 37 }; 38 39 static int 40 vboxdrm_driver_load(struct drm_device *dev, unsigned long flags) 41 { 42 return drm_vblank_init(dev, 1); 43 } 44 45 static void 46 vboxdrm_configure(struct drm_device *dev) 47 { 48 dev->driver->buf_priv_size = 1; 49 dev->driver->load = vboxdrm_driver_load; 50 dev->driver->name = "vbox"; 51 dev->driver->desc = "VirtualBox Video"; 52 dev->driver->date = "20110130"; 53 dev->driver->major = 1; 54 dev->driver->minor = 0; 55 dev->driver->patchlevel = 0; 56 } 57 58 static int 59 vboxdrm_match(device_t parent, cfdata_t match, void *opaque) 60 { 61 struct pci_attach_args *pa = opaque; 62 63 return drm_probe(pa, vboxdrm_pciidlist); 64 } 65 66 static void 67 vboxdrm_attach(device_t parent, device_t self, void *opaque) 68 { 69 struct pci_attach_args *pa = opaque; 70 struct drm_device *dev = device_private(self); 71 72 if (!pmf_device_register(self, NULL, NULL)) 73 aprint_error_dev(self, "couldn't establish power handler\n"); 74 75 dev->driver = kmem_zalloc(sizeof(struct drm_driver_info), KM_SLEEP); 76 if (dev->driver == NULL) { 77 aprint_error_dev(self, "couldn't allocate memory\n"); 78 return; 79 } 80 81 vboxdrm_configure(dev); 82 drm_attach(self, pa, vboxdrm_pciidlist); 83 } 84 85 static int 86 vboxdrm_detach(device_t self, int flags) 87 { 88 struct drm_device *dev = device_private(self); 89 int error; 90 91 pmf_device_deregister(self); 92 93 error = drm_detach(self, flags); 94 kmem_free(dev->driver, sizeof(struct drm_driver_info)); 95 96 return error; 97 } 98 99 CFATTACH_DECL_NEW( 100 vboxdrm, 101 sizeof(struct drm_device), 102 vboxdrm_match, 103 vboxdrm_attach, 104 vboxdrm_detach, 105 NULL 106 ); 107 108 MODULE(MODULE_CLASS_DRIVER, vboxdrm, "drm"); 109 110 #ifdef _MODULE 111 #include "ioconf.c" 112 #endif 113 114 static int 115 vboxdrm_modcmd(modcmd_t cmd, void *opaque) 116 { 117 switch (cmd) { 118 #ifdef _MODULE 119 case MODULE_CMD_INIT: 120 return config_init_component(cfdriver_ioconf_vboxdrm, 121 cfattach_ioconf_vboxdrm, cfdata_ioconf_vboxdrm); 122 case MODULE_CMD_FINI: 123 return config_fini_component(cfdriver_ioconf_vboxdrm, 124 cfattach_ioconf_vboxdrm, cfdata_ioconf_vboxdrm); 125 #else 126 case MODULE_CMD_INIT: 127 case MODULE_CMD_FINI: 128 return 0; 129 #endif 130 default: 131 return ENOTTY; 132 } 133 } 134