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1/*
2 * Copyright 2012 Red Hat Inc.
3 *
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:
11 *
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.
19 *
20 * The above copyright notice and this permission notice (including the
21 * next paragraph) shall be included in all copies or substantial portions
22 * of the Software.
23 *
24 */
25/*
26 * Authors: Dave Airlie <airlied@redhat.com>
27 */
28
29#include <linux/module.h>
30#include <linux/pci.h>
31
32#include <drm/drm_aperture.h>
33#include <drm/drm_atomic_helper.h>
34#include <drm/drm_crtc_helper.h>
35#include <drm/drm_drv.h>
36#include <drm/drm_fbdev_generic.h>
37#include <drm/drm_gem_shmem_helper.h>
38#include <drm/drm_module.h>
39#include <drm/drm_probe_helper.h>
40
41#include "ast_drv.h"
42
43static int ast_modeset = -1;
44
45MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
46module_param_named(modeset, ast_modeset, int, 0400);
47
48/*
49 * DRM driver
50 */
51
52DEFINE_DRM_GEM_FOPS(ast_fops);
53
54static const struct drm_driver ast_driver = {
55 .driver_features = DRIVER_ATOMIC |
56 DRIVER_GEM |
57 DRIVER_MODESET,
58
59 .fops = &ast_fops,
60 .name = DRIVER_NAME,
61 .desc = DRIVER_DESC,
62 .date = DRIVER_DATE,
63 .major = DRIVER_MAJOR,
64 .minor = DRIVER_MINOR,
65 .patchlevel = DRIVER_PATCHLEVEL,
66
67 DRM_GEM_SHMEM_DRIVER_OPS
68};
69
70/*
71 * PCI driver
72 */
73
74#define PCI_VENDOR_ASPEED 0x1a03
75
76#define AST_VGA_DEVICE(id, info) { \
77 .class = PCI_BASE_CLASS_DISPLAY << 16, \
78 .class_mask = 0xff0000, \
79 .vendor = PCI_VENDOR_ASPEED, \
80 .device = id, \
81 .subvendor = PCI_ANY_ID, \
82 .subdevice = PCI_ANY_ID, \
83 .driver_data = (unsigned long) info }
84
85static const struct pci_device_id ast_pciidlist[] = {
86 AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
87 AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
88 {0, 0, 0},
89};
90
91MODULE_DEVICE_TABLE(pci, ast_pciidlist);
92
93static int ast_remove_conflicting_framebuffers(struct pci_dev *pdev)
94{
95 bool primary = false;
96 resource_size_t base, size;
97
98 base = pci_resource_start(pdev, 0);
99 size = pci_resource_len(pdev, 0);
100#ifdef CONFIG_X86
101 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
102#endif
103
104 return drm_aperture_remove_conflicting_framebuffers(base, size, primary, &ast_driver);
105}
106
107static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
108{
109 struct ast_private *ast;
110 struct drm_device *dev;
111 int ret;
112
113 ret = ast_remove_conflicting_framebuffers(pdev);
114 if (ret)
115 return ret;
116
117 ret = pcim_enable_device(pdev);
118 if (ret)
119 return ret;
120
121 ast = ast_device_create(&ast_driver, pdev, ent->driver_data);
122 if (IS_ERR(ast))
123 return PTR_ERR(ast);
124 dev = &ast->base;
125
126 ret = drm_dev_register(dev, ent->driver_data);
127 if (ret)
128 return ret;
129
130 drm_fbdev_generic_setup(dev, 32);
131
132 return 0;
133}
134
135static void ast_pci_remove(struct pci_dev *pdev)
136{
137 struct drm_device *dev = pci_get_drvdata(pdev);
138
139 drm_dev_unregister(dev);
140 drm_atomic_helper_shutdown(dev);
141}
142
143static int ast_drm_freeze(struct drm_device *dev)
144{
145 int error;
146
147 error = drm_mode_config_helper_suspend(dev);
148 if (error)
149 return error;
150 pci_save_state(to_pci_dev(dev->dev));
151 return 0;
152}
153
154static int ast_drm_thaw(struct drm_device *dev)
155{
156 ast_post_gpu(dev);
157
158 return drm_mode_config_helper_resume(dev);
159}
160
161static int ast_drm_resume(struct drm_device *dev)
162{
163 if (pci_enable_device(to_pci_dev(dev->dev)))
164 return -EIO;
165
166 return ast_drm_thaw(dev);
167}
168
169static int ast_pm_suspend(struct device *dev)
170{
171 struct pci_dev *pdev = to_pci_dev(dev);
172 struct drm_device *ddev = pci_get_drvdata(pdev);
173 int error;
174
175 error = ast_drm_freeze(ddev);
176 if (error)
177 return error;
178
179 pci_disable_device(pdev);
180 pci_set_power_state(pdev, PCI_D3hot);
181 return 0;
182}
183
184static int ast_pm_resume(struct device *dev)
185{
186 struct pci_dev *pdev = to_pci_dev(dev);
187 struct drm_device *ddev = pci_get_drvdata(pdev);
188 return ast_drm_resume(ddev);
189}
190
191static int ast_pm_freeze(struct device *dev)
192{
193 struct pci_dev *pdev = to_pci_dev(dev);
194 struct drm_device *ddev = pci_get_drvdata(pdev);
195 return ast_drm_freeze(ddev);
196}
197
198static int ast_pm_thaw(struct device *dev)
199{
200 struct pci_dev *pdev = to_pci_dev(dev);
201 struct drm_device *ddev = pci_get_drvdata(pdev);
202 return ast_drm_thaw(ddev);
203}
204
205static int ast_pm_poweroff(struct device *dev)
206{
207 struct pci_dev *pdev = to_pci_dev(dev);
208 struct drm_device *ddev = pci_get_drvdata(pdev);
209
210 return ast_drm_freeze(ddev);
211}
212
213static const struct dev_pm_ops ast_pm_ops = {
214 .suspend = ast_pm_suspend,
215 .resume = ast_pm_resume,
216 .freeze = ast_pm_freeze,
217 .thaw = ast_pm_thaw,
218 .poweroff = ast_pm_poweroff,
219 .restore = ast_pm_resume,
220};
221
222static struct pci_driver ast_pci_driver = {
223 .name = DRIVER_NAME,
224 .id_table = ast_pciidlist,
225 .probe = ast_pci_probe,
226 .remove = ast_pci_remove,
227 .driver.pm = &ast_pm_ops,
228};
229
230drm_module_pci_driver_if_modeset(ast_pci_driver, ast_modeset);
231
232MODULE_AUTHOR(DRIVER_AUTHOR);
233MODULE_DESCRIPTION(DRIVER_DESC);
234MODULE_LICENSE("GPL and additional rights");
1/*
2 * Copyright 2012 Red Hat Inc.
3 *
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:
11 *
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.
19 *
20 * The above copyright notice and this permission notice (including the
21 * next paragraph) shall be included in all copies or substantial portions
22 * of the Software.
23 *
24 */
25/*
26 * Authors: Dave Airlie <airlied@redhat.com>
27 */
28
29#include <linux/console.h>
30#include <linux/module.h>
31#include <linux/pci.h>
32
33#include <drm/drm_aperture.h>
34#include <drm/drm_atomic_helper.h>
35#include <drm/drm_crtc_helper.h>
36#include <drm/drm_drv.h>
37#include <drm/drm_gem_vram_helper.h>
38#include <drm/drm_probe_helper.h>
39
40#include "ast_drv.h"
41
42int ast_modeset = -1;
43
44MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
45module_param_named(modeset, ast_modeset, int, 0400);
46
47/*
48 * DRM driver
49 */
50
51DEFINE_DRM_GEM_FOPS(ast_fops);
52
53static const struct drm_driver ast_driver = {
54 .driver_features = DRIVER_ATOMIC |
55 DRIVER_GEM |
56 DRIVER_MODESET,
57
58 .fops = &ast_fops,
59 .name = DRIVER_NAME,
60 .desc = DRIVER_DESC,
61 .date = DRIVER_DATE,
62 .major = DRIVER_MAJOR,
63 .minor = DRIVER_MINOR,
64 .patchlevel = DRIVER_PATCHLEVEL,
65
66 DRM_GEM_VRAM_DRIVER
67};
68
69/*
70 * PCI driver
71 */
72
73#define PCI_VENDOR_ASPEED 0x1a03
74
75#define AST_VGA_DEVICE(id, info) { \
76 .class = PCI_BASE_CLASS_DISPLAY << 16, \
77 .class_mask = 0xff0000, \
78 .vendor = PCI_VENDOR_ASPEED, \
79 .device = id, \
80 .subvendor = PCI_ANY_ID, \
81 .subdevice = PCI_ANY_ID, \
82 .driver_data = (unsigned long) info }
83
84static const struct pci_device_id ast_pciidlist[] = {
85 AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
86 AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
87 {0, 0, 0},
88};
89
90MODULE_DEVICE_TABLE(pci, ast_pciidlist);
91
92static int ast_remove_conflicting_framebuffers(struct pci_dev *pdev)
93{
94 bool primary = false;
95 resource_size_t base, size;
96
97 base = pci_resource_start(pdev, 0);
98 size = pci_resource_len(pdev, 0);
99#ifdef CONFIG_X86
100 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
101#endif
102
103 return drm_aperture_remove_conflicting_framebuffers(base, size, primary, "astdrmfb");
104}
105
106static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
107{
108 struct ast_private *ast;
109 struct drm_device *dev;
110 int ret;
111
112 ret = ast_remove_conflicting_framebuffers(pdev);
113 if (ret)
114 return ret;
115
116 ret = pcim_enable_device(pdev);
117 if (ret)
118 return ret;
119
120 ast = ast_device_create(&ast_driver, pdev, ent->driver_data);
121 if (IS_ERR(ast))
122 return PTR_ERR(ast);
123 dev = &ast->base;
124
125 ret = drm_dev_register(dev, ent->driver_data);
126 if (ret)
127 return ret;
128
129 drm_fbdev_generic_setup(dev, 32);
130
131 return 0;
132}
133
134static void ast_pci_remove(struct pci_dev *pdev)
135{
136 struct drm_device *dev = pci_get_drvdata(pdev);
137
138 drm_dev_unregister(dev);
139 drm_atomic_helper_shutdown(dev);
140}
141
142static int ast_drm_freeze(struct drm_device *dev)
143{
144 int error;
145
146 error = drm_mode_config_helper_suspend(dev);
147 if (error)
148 return error;
149 pci_save_state(to_pci_dev(dev->dev));
150 return 0;
151}
152
153static int ast_drm_thaw(struct drm_device *dev)
154{
155 ast_post_gpu(dev);
156
157 return drm_mode_config_helper_resume(dev);
158}
159
160static int ast_drm_resume(struct drm_device *dev)
161{
162 int ret;
163
164 if (pci_enable_device(to_pci_dev(dev->dev)))
165 return -EIO;
166
167 ret = ast_drm_thaw(dev);
168 if (ret)
169 return ret;
170 return 0;
171}
172
173static int ast_pm_suspend(struct device *dev)
174{
175 struct pci_dev *pdev = to_pci_dev(dev);
176 struct drm_device *ddev = pci_get_drvdata(pdev);
177 int error;
178
179 error = ast_drm_freeze(ddev);
180 if (error)
181 return error;
182
183 pci_disable_device(pdev);
184 pci_set_power_state(pdev, PCI_D3hot);
185 return 0;
186}
187
188static int ast_pm_resume(struct device *dev)
189{
190 struct pci_dev *pdev = to_pci_dev(dev);
191 struct drm_device *ddev = pci_get_drvdata(pdev);
192 return ast_drm_resume(ddev);
193}
194
195static int ast_pm_freeze(struct device *dev)
196{
197 struct pci_dev *pdev = to_pci_dev(dev);
198 struct drm_device *ddev = pci_get_drvdata(pdev);
199 return ast_drm_freeze(ddev);
200}
201
202static int ast_pm_thaw(struct device *dev)
203{
204 struct pci_dev *pdev = to_pci_dev(dev);
205 struct drm_device *ddev = pci_get_drvdata(pdev);
206 return ast_drm_thaw(ddev);
207}
208
209static int ast_pm_poweroff(struct device *dev)
210{
211 struct pci_dev *pdev = to_pci_dev(dev);
212 struct drm_device *ddev = pci_get_drvdata(pdev);
213
214 return ast_drm_freeze(ddev);
215}
216
217static const struct dev_pm_ops ast_pm_ops = {
218 .suspend = ast_pm_suspend,
219 .resume = ast_pm_resume,
220 .freeze = ast_pm_freeze,
221 .thaw = ast_pm_thaw,
222 .poweroff = ast_pm_poweroff,
223 .restore = ast_pm_resume,
224};
225
226static struct pci_driver ast_pci_driver = {
227 .name = DRIVER_NAME,
228 .id_table = ast_pciidlist,
229 .probe = ast_pci_probe,
230 .remove = ast_pci_remove,
231 .driver.pm = &ast_pm_ops,
232};
233
234static int __init ast_init(void)
235{
236 if (vgacon_text_force() && ast_modeset == -1)
237 return -EINVAL;
238
239 if (ast_modeset == 0)
240 return -EINVAL;
241 return pci_register_driver(&ast_pci_driver);
242}
243static void __exit ast_exit(void)
244{
245 pci_unregister_driver(&ast_pci_driver);
246}
247
248module_init(ast_init);
249module_exit(ast_exit);
250
251MODULE_AUTHOR(DRIVER_AUTHOR);
252MODULE_DESCRIPTION(DRIVER_DESC);
253MODULE_LICENSE("GPL and additional rights");