2 * Copyright 2012 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
15 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
17 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
18 * USE OR OTHER DEALINGS IN THE SOFTWARE.
20 * The above copyright notice and this permission notice (including the
21 * next paragraph) shall be included in all copies or substantial portions
28 #include <linux/module.h>
29 #include <linux/console.h>
32 #include <drm/drm_crtc_helper.h>
38 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
39 module_param_named(modeset, ast_modeset, int, 0400);
41 #define PCI_VENDOR_ASPEED 0x1a03
43 static struct drm_driver driver;
45 #define AST_VGA_DEVICE(id, info) { \
46 .class = PCI_BASE_CLASS_DISPLAY << 16, \
47 .class_mask = 0xff0000, \
48 .vendor = PCI_VENDOR_ASPEED, \
50 .subvendor = PCI_ANY_ID, \
51 .subdevice = PCI_ANY_ID, \
52 .driver_data = (unsigned long) info }
54 static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
55 AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
56 AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
57 /* AST_VGA_DEVICE(PCI_CHIP_AST1180, NULL), - don't bind to 1180 for now */
61 MODULE_DEVICE_TABLE(pci, pciidlist);
63 static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
65 return drm_get_pci_dev(pdev, ent, &driver);
69 ast_pci_remove(struct pci_dev *pdev)
71 struct drm_device *dev = pci_get_drvdata(pdev);
78 static int ast_drm_freeze(struct drm_device *dev)
80 drm_kms_helper_poll_disable(dev);
82 pci_save_state(dev->pdev);
85 ast_fbdev_set_suspend(dev, 1);
90 static int ast_drm_thaw(struct drm_device *dev)
96 drm_mode_config_reset(dev);
97 drm_modeset_lock_all(dev);
98 drm_helper_resume_force_mode(dev);
99 drm_modeset_unlock_all(dev);
102 ast_fbdev_set_suspend(dev, 0);
107 static int ast_drm_resume(struct drm_device *dev)
111 if (pci_enable_device(dev->pdev))
114 ret = ast_drm_thaw(dev);
118 drm_kms_helper_poll_enable(dev);
122 static int ast_pm_suspend(struct device *dev)
124 struct pci_dev *pdev = to_pci_dev(dev);
125 struct drm_device *ddev = pci_get_drvdata(pdev);
128 error = ast_drm_freeze(ddev);
132 pci_disable_device(pdev);
133 pci_set_power_state(pdev, PCI_D3hot);
136 static int ast_pm_resume(struct device *dev)
138 struct pci_dev *pdev = to_pci_dev(dev);
139 struct drm_device *ddev = pci_get_drvdata(pdev);
140 return ast_drm_resume(ddev);
143 static int ast_pm_freeze(struct device *dev)
145 struct pci_dev *pdev = to_pci_dev(dev);
146 struct drm_device *ddev = pci_get_drvdata(pdev);
148 if (!ddev || !ddev->dev_private)
150 return ast_drm_freeze(ddev);
154 static int ast_pm_thaw(struct device *dev)
156 struct pci_dev *pdev = to_pci_dev(dev);
157 struct drm_device *ddev = pci_get_drvdata(pdev);
158 return ast_drm_thaw(ddev);
161 static int ast_pm_poweroff(struct device *dev)
163 struct pci_dev *pdev = to_pci_dev(dev);
164 struct drm_device *ddev = pci_get_drvdata(pdev);
166 return ast_drm_freeze(ddev);
169 static const struct dev_pm_ops ast_pm_ops = {
170 .suspend = ast_pm_suspend,
171 .resume = ast_pm_resume,
172 .freeze = ast_pm_freeze,
174 .poweroff = ast_pm_poweroff,
175 .restore = ast_pm_resume,
178 static struct pci_driver ast_pci_driver = {
180 .id_table = pciidlist,
181 .probe = ast_pci_probe,
182 .remove = ast_pci_remove,
183 .driver.pm = &ast_pm_ops,
186 static const struct file_operations ast_fops = {
187 .owner = THIS_MODULE,
189 .release = drm_release,
190 .unlocked_ioctl = drm_ioctl,
194 .compat_ioctl = drm_compat_ioctl,
199 static struct drm_driver driver = {
200 .driver_features = DRIVER_MODESET | DRIVER_GEM,
203 .load = ast_driver_load,
204 .unload = ast_driver_unload,
210 .major = DRIVER_MAJOR,
211 .minor = DRIVER_MINOR,
212 .patchlevel = DRIVER_PATCHLEVEL,
214 .gem_free_object = ast_gem_free_object,
215 .dumb_create = ast_dumb_create,
216 .dumb_map_offset = ast_dumb_mmap_offset,
217 .dumb_destroy = drm_gem_dumb_destroy,
221 static int __init ast_init(void)
223 #ifdef CONFIG_VGA_CONSOLE
224 if (vgacon_text_force() && ast_modeset == -1)
228 if (ast_modeset == 0)
230 return drm_pci_init(&driver, &ast_pci_driver);
232 static void __exit ast_exit(void)
234 drm_pci_exit(&driver, &ast_pci_driver);
237 module_init(ast_init);
238 module_exit(ast_exit);
240 MODULE_AUTHOR(DRIVER_AUTHOR);
241 MODULE_DESCRIPTION(DRIVER_DESC);
242 MODULE_LICENSE("GPL and additional rights");