sys/external/bsd/drm/dist/bsd-core/via_drv.c

   1 /* via_drv.c -- VIA unichrome driver -*- linux-c -*-
   2  * Created: Fri Aug 12 2005 by anholt@FreeBSD.org
   3  */
   4 /*-
   5  * Copyright 2005 Eric Anholt
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the next
  16  * paragraph) shall be included in all copies or substantial portions of the
  17  * Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  23  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * Authors:
  27  *    Eric Anholt <anholt@FreeBSD.org>
  28  *
  29  */
  30
  31 #include "drmP.h"
  32 #include "drm.h"
  33 #include "via_drm.h"
  34 #include "via_drv.h"
  35 #include "drm_pciids.h"
  36
  37 /* drv_PCI_IDs comes from drm_pciids.h, generated from drm_pciids.txt. */
  38 static drm_pci_id_list_t via_pciidlist[] = {
  39         viadrv_PCI_IDS
  40 };
  41
  42 static void via_configure(struct drm_device *dev)
  43 {
  44         dev->driver->driver_features =
  45             DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_IRQ;
  46
  47         dev->driver->buf_priv_size      = 1;
  48         dev->driver->load               = via_driver_load;
  49         dev->driver->unload             = via_driver_unload;
  50         dev->driver->context_ctor       = via_init_context;
  51         dev->driver->context_dtor       = via_final_context;
  52         dev->driver->get_vblank_counter = via_get_vblank_counter;
  53         dev->driver->enable_vblank      = via_enable_vblank;
  54         dev->driver->disable_vblank     = via_disable_vblank;
  55         dev->driver->irq_preinstall     = via_driver_irq_preinstall;
  56         dev->driver->irq_postinstall    = via_driver_irq_postinstall;
  57         dev->driver->irq_uninstall      = via_driver_irq_uninstall;
  58         dev->driver->irq_handler        = via_driver_irq_handler;
  59         dev->driver->dma_quiescent      = via_driver_dma_quiescent;
  60
  61         dev->driver->ioctls             = via_ioctls;
  62         dev->driver->max_ioctl          = via_max_ioctl;
  63
  64         dev->driver->name               = DRIVER_NAME;
  65         dev->driver->desc               = DRIVER_DESC;
  66         dev->driver->date               = VIA_DRM_DRIVER_DATE;
  67         dev->driver->major              = VIA_DRM_DRIVER_MAJOR;
  68         dev->driver->minor              = VIA_DRM_DRIVER_MINOR;
  69         dev->driver->patchlevel         = VIA_DRM_DRIVER_PATCHLEVEL;
  70 }
  71
  72 #if defined(__FreeBSD__)
  73 static int
  74 via_probe(device_t kdev)
  75 {
  76         return drm_probe(kdev, via_pciidlist);
  77 }
  78
  79 static int
  80 via_attach(device_t kdev)
  81 {
  82         struct drm_device *dev = device_get_softc(kdev);
  83
  84         dev->driver = malloc(sizeof(struct drm_driver_info), DRM_MEM_DRIVER,
  85             M_WAITOK | M_ZERO);
  86
  87         via_configure(dev);
  88
  89         return drm_attach(kdev, via_pciidlist);
  90 }
  91
  92 static int
  93 via_detach(device_t kdev)
  94 {
  95         struct drm_device *dev = device_get_softc(kdev);
  96         int ret;
  97
  98         ret = drm_detach(kdev);
  99
 100         free(dev->driver, DRM_MEM_DRIVER);
 101
 102         return ret;
 103 }
 104
 105 static device_method_t via_methods[] = {
 106         /* Device interface */
 107         DEVMETHOD(device_probe,         via_probe),
 108         DEVMETHOD(device_attach,        via_attach),
 109         DEVMETHOD(device_detach,        via_detach),
 110
 111         { 0, 0 }
 112 };
 113
 114 static driver_t via_driver = {
 115         "drm",
 116         via_methods,
 117         sizeof(struct drm_device)
 118 };
 119
 120 extern devclass_t drm_devclass;
 121 DRIVER_MODULE(via, pci, via_driver, drm_devclass, 0, 0);
 122 MODULE_DEPEND(via, drm, 1, 1, 1);
 123
 124 #elif defined(__NetBSD__)
 125
 126 static int
 127 viadrm_probe(device_t parent, cfdata_t match, void *aux)
 128 {
 129         struct pci_attach_args *pa = aux;
 130         return drm_probe(pa, via_pciidlist);
 131 }
 132
 133 static void
 134 viadrm_attach(device_t parent, device_t self, void *aux)
 135 {
 136         struct pci_attach_args *pa = aux;
 137         struct drm_device *dev = device_private(self);
 138
 139         if (!pmf_device_register(self, NULL, NULL))
 140                 aprint_error_dev(self, "couldn't establish power handler\n");
 141
 142         dev->driver = malloc(sizeof(struct drm_driver_info), DRM_MEM_DRIVER,
 143             M_WAITOK | M_ZERO);
 144
 145         via_configure(dev);
 146
 147         drm_attach(self, pa, via_pciidlist);
 148 }
 149
 150 static int
 151 viadrm_detach(device_t self, int flags)
 152 {
 153         pmf_device_deregister(self);
 154
 155         return drm_detach(self, flags);
 156 }
 157
 158 CFATTACH_DECL_NEW(viadrm, sizeof(struct drm_device),
 159     viadrm_probe, viadrm_attach, viadrm_detach, NULL);
 160
 161 #ifdef _MODULE
 162
 163 MODULE(MODULE_CLASS_DRIVER, viadrm, NULL);
 164
 165 CFDRIVER_DECL(viadrm, DV_DULL, NULL);
 166 extern struct cfattach viadrm_ca;
 167 static int drmloc[] = { -1 };
 168 static struct cfparent drmparent = {
 169         "drm", "vga", DVUNIT_ANY
 170 };
 171 static struct cfdata viadrm_cfdata[] = {
 172         {
 173                 .cf_name = "viadrm",
 174                 .cf_atname = "viadrm",
 175                 .cf_unit = 0,
 176                 .cf_fstate = FSTATE_STAR,
 177                 .cf_loc = drmloc,
 178                 .cf_flags = 0,
 179                 .cf_pspec = &drmparent,
 180         },
 181         { NULL }
 182 };
 183
 184 static int
 185 viadrm_modcmd(modcmd_t cmd, void *arg)
 186 {
 187         int err;
 188
 189         switch (cmd) {
 190         case MODULE_CMD_INIT:
 191                 err = config_cfdriver_attach(&viadrm_cd);
 192                 if (err)
 193                         return err;
 194                 err = config_cfattach_attach("viadrm", &viadrm_ca);
 195                 if (err) {
 196                         config_cfdriver_detach(&viadrm_cd);
 197                         return err;
 198                 }
 199                 err = config_cfdata_attach(viadrm_cfdata, 1);
 200                 if (err) {
 201                         config_cfattach_detach("viadrm", &viadrm_ca);
 202                         config_cfdriver_detach(&viadrm_cd);
 203                         return err;
 204                 }
 205                 return 0;
 206         case MODULE_CMD_FINI:
 207                 err = config_cfdata_detach(viadrm_cfdata);
 208                 if (err)
 209                         return err;
 210                 config_cfattach_detach("viadrm", &viadrm_ca);
 211                 config_cfdriver_detach(&viadrm_cd);
 212                 return 0;
 213         default:
 214                 return ENOTTY;
 215         }
 216 }
 217 #endif /* _MODULE */
 218
 219 #endif