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
29 #include <linux/console.h>
30 #include <linux/module.h>
31 #include <linux/pci.h>
33 #include <drm/drm_crtc_helper.h>
34 #include <drm/drm_drv.h>
35 #include <drm/drm_fb_helper.h>
36 #include <drm/drm_gem_vram_helper.h>
37 #include <drm/drm_probe_helper.h>
43 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
44 module_param_named(modeset, ast_modeset, int, 0400);
50 DEFINE_DRM_GEM_FOPS(ast_fops);
52 static struct drm_driver ast_driver = {
53 .driver_features = DRIVER_ATOMIC |
61 .major = DRIVER_MAJOR,
62 .minor = DRIVER_MINOR,
63 .patchlevel = DRIVER_PATCHLEVEL,
72 #define PCI_VENDOR_ASPEED 0x1a03
74 #define AST_VGA_DEVICE(id, info) { \
75 .class = PCI_BASE_CLASS_DISPLAY << 16, \
76 .class_mask = 0xff0000, \
77 .vendor = PCI_VENDOR_ASPEED, \
79 .subvendor = PCI_ANY_ID, \
80 .subdevice = PCI_ANY_ID, \
81 .driver_data = (unsigned long) info }
83 static const struct pci_device_id ast_pciidlist[] = {
84 AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
85 AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
89 MODULE_DEVICE_TABLE(pci, ast_pciidlist);
91 static void ast_kick_out_firmware_fb(struct pci_dev *pdev)
93 struct apertures_struct *ap;
96 ap = alloc_apertures(1);
100 ap->ranges[0].base = pci_resource_start(pdev, 0);
101 ap->ranges[0].size = pci_resource_len(pdev, 0);
104 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
106 drm_fb_helper_remove_conflicting_framebuffers(ap, "astdrmfb", primary);
110 static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
112 struct ast_private *ast;
113 struct drm_device *dev;
116 ast_kick_out_firmware_fb(pdev);
118 ret = pcim_enable_device(pdev);
122 ast = ast_device_create(&ast_driver, pdev, ent->driver_data);
127 ret = drm_dev_register(dev, ent->driver_data);
131 drm_fbdev_generic_setup(dev, 32);
136 static void ast_pci_remove(struct pci_dev *pdev)
138 struct drm_device *dev = pci_get_drvdata(pdev);
140 drm_dev_unregister(dev);
143 static int ast_drm_freeze(struct drm_device *dev)
147 error = drm_mode_config_helper_suspend(dev);
150 pci_save_state(dev->pdev);
154 static int ast_drm_thaw(struct drm_device *dev)
158 return drm_mode_config_helper_resume(dev);
161 static int ast_drm_resume(struct drm_device *dev)
165 if (pci_enable_device(dev->pdev))
168 ret = ast_drm_thaw(dev);
174 static int ast_pm_suspend(struct device *dev)
176 struct pci_dev *pdev = to_pci_dev(dev);
177 struct drm_device *ddev = pci_get_drvdata(pdev);
180 error = ast_drm_freeze(ddev);
184 pci_disable_device(pdev);
185 pci_set_power_state(pdev, PCI_D3hot);
189 static int ast_pm_resume(struct device *dev)
191 struct pci_dev *pdev = to_pci_dev(dev);
192 struct drm_device *ddev = pci_get_drvdata(pdev);
193 return ast_drm_resume(ddev);
196 static int ast_pm_freeze(struct device *dev)
198 struct pci_dev *pdev = to_pci_dev(dev);
199 struct drm_device *ddev = pci_get_drvdata(pdev);
200 return ast_drm_freeze(ddev);
203 static int ast_pm_thaw(struct device *dev)
205 struct pci_dev *pdev = to_pci_dev(dev);
206 struct drm_device *ddev = pci_get_drvdata(pdev);
207 return ast_drm_thaw(ddev);
210 static int ast_pm_poweroff(struct device *dev)
212 struct pci_dev *pdev = to_pci_dev(dev);
213 struct drm_device *ddev = pci_get_drvdata(pdev);
215 return ast_drm_freeze(ddev);
218 static const struct dev_pm_ops ast_pm_ops = {
219 .suspend = ast_pm_suspend,
220 .resume = ast_pm_resume,
221 .freeze = ast_pm_freeze,
223 .poweroff = ast_pm_poweroff,
224 .restore = ast_pm_resume,
227 static struct pci_driver ast_pci_driver = {
229 .id_table = ast_pciidlist,
230 .probe = ast_pci_probe,
231 .remove = ast_pci_remove,
232 .driver.pm = &ast_pm_ops,
235 static int __init ast_init(void)
237 if (vgacon_text_force() && ast_modeset == -1)
240 if (ast_modeset == 0)
242 return pci_register_driver(&ast_pci_driver);
244 static void __exit ast_exit(void)
246 pci_unregister_driver(&ast_pci_driver);
249 module_init(ast_init);
250 module_exit(ast_exit);
252 MODULE_AUTHOR(DRIVER_AUTHOR);
253 MODULE_DESCRIPTION(DRIVER_DESC);
254 MODULE_LICENSE("GPL and additional rights");