diff options
Diffstat (limited to 'drivers/gpu/drm/vivante/vivante_drv.c')
| -rw-r--r-- | drivers/gpu/drm/vivante/vivante_drv.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vivante/vivante_drv.c b/drivers/gpu/drm/vivante/vivante_drv.c new file mode 100644 index 000000000000..a19d21276214 --- /dev/null +++ b/drivers/gpu/drm/vivante/vivante_drv.c @@ -0,0 +1,131 @@ +/**************************************************************************** +* +* Copyright (C) 2005 - 2013 by Vivante Corp. +* +* This program is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation; either version 2 of the license, or +* (at your option) any later version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with this program; if not write to the Free Software +* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +* +*****************************************************************************/ + + +/* vivante_drv.c -- vivante driver -*- linux-c -*- + * + * + * 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 + * PRECISION INSIGHT 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: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Daryll Strauss <daryll@valinux.com> + * Gareth Hughes <gareth@valinux.com> + */ + +#include <linux/version.h> +#include <linux/module.h> + +#include "drmP.h" +#include "vivante_drv.h" + +#include "drm_pciids.h" +#include "drm_legacy.h" + +static char platformdevicename[] = "Vivante GCCore"; +static struct platform_device *pplatformdev; + + +int viv_set_busid(struct drm_device *dev, struct drm_master *master) +{ + int id; + + id = dev->platformdev->id; + if (id < 0) + id = 0; + + master->unique = kasprintf(GFP_KERNEL, "platform:%s:%02d", + dev->platformdev->name, id); + if (!master->unique) + return -ENOMEM; + + master->unique_len = strlen(master->unique); + return 0; +} + +static const struct file_operations viv_driver_fops = { + .owner = THIS_MODULE, + .open = drm_open, + .release = drm_release, + .unlocked_ioctl = drm_ioctl, + .mmap = drm_legacy_mmap, + .poll = drm_poll, + .llseek = noop_llseek, +}; + +static struct drm_driver driver = { + .fops = &viv_driver_fops, + .set_busid = viv_set_busid, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, + .patchlevel = DRIVER_PATCHLEVEL, + .driver_features = DRIVER_LEGACY, +}; + +static int __init vivante_init(void) +{ + int retcode; + + pplatformdev = platform_device_register_simple(platformdevicename, + -1, NULL, 0); + if (pplatformdev == NULL) + printk(KERN_ERR"Platform device is null\n"); + + retcode = drm_platform_init(&driver, pplatformdev); + + return retcode; +} + +static void __exit vivante_exit(void) +{ + if (pplatformdev) { + /* The drvdata is set in drm_get_platform_dev() */ + drm_put_dev(platform_get_drvdata(pplatformdev)); + platform_device_unregister(pplatformdev); + pplatformdev = NULL; + } +} + +module_init(vivante_init); +module_exit(vivante_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL and additional rights"); |