via_pci.c revision 1.2.18.2
1 1.2.18.2 jdolecek /* $NetBSD: via_pci.c,v 1.2.18.2 2017/12/03 11:38:01 jdolecek Exp $ */ 2 1.2.18.2 jdolecek 3 1.2.18.2 jdolecek /*- 4 1.2.18.2 jdolecek * Copyright (c) 2015 The NetBSD Foundation, Inc. 5 1.2.18.2 jdolecek * All rights reserved. 6 1.2.18.2 jdolecek * 7 1.2.18.2 jdolecek * This code is derived from software contributed to The NetBSD Foundation 8 1.2.18.2 jdolecek * by Taylor R. Campbell. 9 1.2.18.2 jdolecek * 10 1.2.18.2 jdolecek * Redistribution and use in source and binary forms, with or without 11 1.2.18.2 jdolecek * modification, are permitted provided that the following conditions 12 1.2.18.2 jdolecek * are met: 13 1.2.18.2 jdolecek * 1. Redistributions of source code must retain the above copyright 14 1.2.18.2 jdolecek * notice, this list of conditions and the following disclaimer. 15 1.2.18.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.18.2 jdolecek * notice, this list of conditions and the following disclaimer in the 17 1.2.18.2 jdolecek * documentation and/or other materials provided with the distribution. 18 1.2.18.2 jdolecek * 19 1.2.18.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.18.2 jdolecek * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.18.2 jdolecek * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.18.2 jdolecek * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.18.2 jdolecek * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.18.2 jdolecek * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.18.2 jdolecek * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.18.2 jdolecek * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.18.2 jdolecek * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.18.2 jdolecek * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.18.2 jdolecek * POSSIBILITY OF SUCH DAMAGE. 30 1.2.18.2 jdolecek */ 31 1.2.18.2 jdolecek 32 1.2.18.2 jdolecek #include <sys/cdefs.h> 33 1.2.18.2 jdolecek __KERNEL_RCSID(0, "$NetBSD: via_pci.c,v 1.2.18.2 2017/12/03 11:38:01 jdolecek Exp $"); 34 1.2.18.2 jdolecek 35 1.2.18.2 jdolecek #include <sys/types.h> 36 1.2.18.2 jdolecek #include <sys/device.h> 37 1.2.18.2 jdolecek #include <sys/pmf.h> 38 1.2.18.2 jdolecek #include <sys/systm.h> 39 1.2.18.2 jdolecek 40 1.2.18.2 jdolecek #include <linux/pci.h> 41 1.2.18.2 jdolecek 42 1.2.18.2 jdolecek #include <drm/drmP.h> 43 1.2.18.2 jdolecek #include <drm/drm_pciids.h> 44 1.2.18.2 jdolecek #include <drm/via_drm.h> 45 1.2.18.2 jdolecek 46 1.2.18.2 jdolecek #include "via_drv.h" 47 1.2.18.2 jdolecek 48 1.2.18.2 jdolecek struct viadrm_softc { 49 1.2.18.2 jdolecek device_t sc_dev; 50 1.2.18.2 jdolecek struct pci_dev sc_pci_dev; 51 1.2.18.2 jdolecek struct drm_device *sc_drm_dev; 52 1.2.18.2 jdolecek }; 53 1.2.18.2 jdolecek 54 1.2.18.2 jdolecek static int viadrm_match(device_t, cfdata_t, void *); 55 1.2.18.2 jdolecek static void viadrm_attach(device_t, device_t, void *); 56 1.2.18.2 jdolecek static int viadrm_detach(device_t, int); 57 1.2.18.2 jdolecek 58 1.2.18.2 jdolecek extern struct drm_driver *const via_drm_driver; /* XXX */ 59 1.2.18.2 jdolecek 60 1.2.18.2 jdolecek CFATTACH_DECL_NEW(viadrmums, sizeof(struct viadrm_softc), 61 1.2.18.2 jdolecek viadrm_match, viadrm_attach, viadrm_detach, NULL); 62 1.2.18.2 jdolecek 63 1.2.18.2 jdolecek static const struct pci_device_id viadrm_pci_ids[] = { 64 1.2.18.2 jdolecek viadrv_PCI_IDS 65 1.2.18.2 jdolecek }; 66 1.2.18.2 jdolecek 67 1.2.18.2 jdolecek static const unsigned long * 68 1.2.18.2 jdolecek viadrm_lookup(const struct pci_attach_args *pa) 69 1.2.18.2 jdolecek { 70 1.2.18.2 jdolecek unsigned i; 71 1.2.18.2 jdolecek 72 1.2.18.2 jdolecek for (i = 0; i < __arraycount(viadrm_pci_ids); i++) { 73 1.2.18.2 jdolecek KASSERT(viadrm_pci_ids[i].subvendor == PCI_ANY_ID); 74 1.2.18.2 jdolecek KASSERT(viadrm_pci_ids[i].subdevice == PCI_ANY_ID); 75 1.2.18.2 jdolecek KASSERT(viadrm_pci_ids[i].class == 0); 76 1.2.18.2 jdolecek KASSERT(viadrm_pci_ids[i].class_mask == 0); 77 1.2.18.2 jdolecek if (PCI_VENDOR(pa->pa_id) != viadrm_pci_ids[i].vendor) 78 1.2.18.2 jdolecek continue; 79 1.2.18.2 jdolecek if (PCI_PRODUCT(pa->pa_id) != viadrm_pci_ids[i].device) 80 1.2.18.2 jdolecek continue; 81 1.2.18.2 jdolecek return &viadrm_pci_ids[i].driver_data; 82 1.2.18.2 jdolecek } 83 1.2.18.2 jdolecek 84 1.2.18.2 jdolecek return NULL; 85 1.2.18.2 jdolecek } 86 1.2.18.2 jdolecek 87 1.2.18.2 jdolecek static int 88 1.2.18.2 jdolecek viadrm_match(device_t parent, cfdata_t match, void *aux) 89 1.2.18.2 jdolecek { 90 1.2.18.2 jdolecek extern int viadrm_guarantee_initialized(void); 91 1.2.18.2 jdolecek const struct pci_attach_args *const pa = aux; 92 1.2.18.2 jdolecek int error; 93 1.2.18.2 jdolecek 94 1.2.18.2 jdolecek error = viadrm_guarantee_initialized(); 95 1.2.18.2 jdolecek if (error) { 96 1.2.18.2 jdolecek aprint_error("viadrm: failed to initialize: %d\n", error); 97 1.2.18.2 jdolecek return 0; 98 1.2.18.2 jdolecek } 99 1.2.18.2 jdolecek 100 1.2.18.2 jdolecek if (viadrm_lookup(pa) == NULL) 101 1.2.18.2 jdolecek return 0; 102 1.2.18.2 jdolecek 103 1.2.18.2 jdolecek return 1; 104 1.2.18.2 jdolecek } 105 1.2.18.2 jdolecek 106 1.2.18.2 jdolecek static void 107 1.2.18.2 jdolecek viadrm_attach(device_t parent, device_t self, void *aux) 108 1.2.18.2 jdolecek { 109 1.2.18.2 jdolecek struct viadrm_softc *const sc = device_private(self); 110 1.2.18.2 jdolecek const struct pci_attach_args *const pa = aux; 111 1.2.18.2 jdolecek const unsigned long *const cookiep = viadrm_lookup(pa); 112 1.2.18.2 jdolecek int error; 113 1.2.18.2 jdolecek 114 1.2.18.2 jdolecek KASSERT(cookiep != NULL); 115 1.2.18.2 jdolecek 116 1.2.18.2 jdolecek if (!pmf_device_register(self, NULL, NULL)) 117 1.2.18.2 jdolecek aprint_error_dev(self, "couldn't establish power handler\n"); 118 1.2.18.2 jdolecek 119 1.2.18.2 jdolecek /* XXX errno Linux->NetBSD */ 120 1.2.18.2 jdolecek error = -drm_pci_attach(self, pa, &sc->sc_pci_dev, via_drm_driver, 121 1.2.18.2 jdolecek *cookiep, &sc->sc_drm_dev); 122 1.2.18.2 jdolecek if (error) { 123 1.2.18.2 jdolecek aprint_error_dev(self, "unable to attach drm: %d\n", error); 124 1.2.18.2 jdolecek return; 125 1.2.18.2 jdolecek } 126 1.2.18.2 jdolecek } 127 1.2.18.2 jdolecek 128 1.2.18.2 jdolecek static int 129 1.2.18.2 jdolecek viadrm_detach(device_t self, int flags) 130 1.2.18.2 jdolecek { 131 1.2.18.2 jdolecek struct viadrm_softc *const sc = device_private(self); 132 1.2.18.2 jdolecek int error; 133 1.2.18.2 jdolecek 134 1.2.18.2 jdolecek error = config_detach_children(self, flags); 135 1.2.18.2 jdolecek if (error) 136 1.2.18.2 jdolecek return error; 137 1.2.18.2 jdolecek if (sc->sc_drm_dev == NULL) 138 1.2.18.2 jdolecek goto out; 139 1.2.18.2 jdolecek /* XXX errno Linux->NetBSD */ 140 1.2.18.2 jdolecek error = -drm_pci_detach(sc->sc_drm_dev, flags); 141 1.2.18.2 jdolecek if (error) 142 1.2.18.2 jdolecek return error; 143 1.2.18.2 jdolecek sc->sc_drm_dev = NULL; 144 1.2.18.2 jdolecek pmf_device_deregister(self); 145 1.2.18.2 jdolecek out: return 0; 146 1.2.18.2 jdolecek } 147
Indexes created Mon Oct 20 11:09:49 GMT 2025