| /**************************************************************************** |
| * |
| * 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"); |