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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#include <linux/module.h>
29#include <linux/console.h>
30
31#include <drm/drmP.h>
32#include <drm/drm_crtc_helper.h>
33
34#include "ast_drv.h"
35
36int ast_modeset = -1;
37
38MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
39module_param_named(modeset, ast_modeset, int, 0400);
40
41#define PCI_VENDOR_ASPEED 0x1a03
42
43static struct drm_driver driver;
44
45#define AST_VGA_DEVICE(id, info) { \
46 .class = PCI_BASE_CLASS_DISPLAY << 16, \
47 .class_mask = 0xff0000, \
48 .vendor = PCI_VENDOR_ASPEED, \
49 .device = id, \
50 .subvendor = PCI_ANY_ID, \
51 .subdevice = PCI_ANY_ID, \
52 .driver_data = (unsigned long) info }
53
54static const struct pci_device_id 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 */
58 {0, 0, 0},
59};
60
61MODULE_DEVICE_TABLE(pci, pciidlist);
62
63static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
64{
65 return drm_get_pci_dev(pdev, ent, &driver);
66}
67
68static void
69ast_pci_remove(struct pci_dev *pdev)
70{
71 struct drm_device *dev = pci_get_drvdata(pdev);
72
73 drm_put_dev(dev);
74}
75
76
77
78static int ast_drm_freeze(struct drm_device *dev)
79{
80 drm_kms_helper_poll_disable(dev);
81
82 pci_save_state(dev->pdev);
83
84 console_lock();
85 ast_fbdev_set_suspend(dev, 1);
86 console_unlock();
87 return 0;
88}
89
90static int ast_drm_thaw(struct drm_device *dev)
91{
92 int error = 0;
93
94 ast_post_gpu(dev);
95
96 drm_mode_config_reset(dev);
97 drm_helper_resume_force_mode(dev);
98
99 console_lock();
100 ast_fbdev_set_suspend(dev, 0);
101 console_unlock();
102 return error;
103}
104
105static int ast_drm_resume(struct drm_device *dev)
106{
107 int ret;
108
109 if (pci_enable_device(dev->pdev))
110 return -EIO;
111
112 ret = ast_drm_thaw(dev);
113 if (ret)
114 return ret;
115
116 drm_kms_helper_poll_enable(dev);
117 return 0;
118}
119
120static int ast_pm_suspend(struct device *dev)
121{
122 struct pci_dev *pdev = to_pci_dev(dev);
123 struct drm_device *ddev = pci_get_drvdata(pdev);
124 int error;
125
126 error = ast_drm_freeze(ddev);
127 if (error)
128 return error;
129
130 pci_disable_device(pdev);
131 pci_set_power_state(pdev, PCI_D3hot);
132 return 0;
133}
134static int ast_pm_resume(struct device *dev)
135{
136 struct pci_dev *pdev = to_pci_dev(dev);
137 struct drm_device *ddev = pci_get_drvdata(pdev);
138 return ast_drm_resume(ddev);
139}
140
141static int ast_pm_freeze(struct device *dev)
142{
143 struct pci_dev *pdev = to_pci_dev(dev);
144 struct drm_device *ddev = pci_get_drvdata(pdev);
145
146 if (!ddev || !ddev->dev_private)
147 return -ENODEV;
148 return ast_drm_freeze(ddev);
149
150}
151
152static int ast_pm_thaw(struct device *dev)
153{
154 struct pci_dev *pdev = to_pci_dev(dev);
155 struct drm_device *ddev = pci_get_drvdata(pdev);
156 return ast_drm_thaw(ddev);
157}
158
159static int ast_pm_poweroff(struct device *dev)
160{
161 struct pci_dev *pdev = to_pci_dev(dev);
162 struct drm_device *ddev = pci_get_drvdata(pdev);
163
164 return ast_drm_freeze(ddev);
165}
166
167static const struct dev_pm_ops ast_pm_ops = {
168 .suspend = ast_pm_suspend,
169 .resume = ast_pm_resume,
170 .freeze = ast_pm_freeze,
171 .thaw = ast_pm_thaw,
172 .poweroff = ast_pm_poweroff,
173 .restore = ast_pm_resume,
174};
175
176static struct pci_driver ast_pci_driver = {
177 .name = DRIVER_NAME,
178 .id_table = pciidlist,
179 .probe = ast_pci_probe,
180 .remove = ast_pci_remove,
181 .driver.pm = &ast_pm_ops,
182};
183
184static const struct file_operations ast_fops = {
185 .owner = THIS_MODULE,
186 .open = drm_open,
187 .release = drm_release,
188 .unlocked_ioctl = drm_ioctl,
189 .mmap = ast_mmap,
190 .poll = drm_poll,
191#ifdef CONFIG_COMPAT
192 .compat_ioctl = drm_compat_ioctl,
193#endif
194 .read = drm_read,
195};
196
197static struct drm_driver driver = {
198 .driver_features = DRIVER_MODESET | DRIVER_GEM,
199
200 .load = ast_driver_load,
201 .unload = ast_driver_unload,
202 .set_busid = drm_pci_set_busid,
203
204 .fops = &ast_fops,
205 .name = DRIVER_NAME,
206 .desc = DRIVER_DESC,
207 .date = DRIVER_DATE,
208 .major = DRIVER_MAJOR,
209 .minor = DRIVER_MINOR,
210 .patchlevel = DRIVER_PATCHLEVEL,
211
212 .gem_free_object = ast_gem_free_object,
213 .dumb_create = ast_dumb_create,
214 .dumb_map_offset = ast_dumb_mmap_offset,
215 .dumb_destroy = drm_gem_dumb_destroy,
216
217};
218
219static int __init ast_init(void)
220{
221#ifdef CONFIG_VGA_CONSOLE
222 if (vgacon_text_force() && ast_modeset == -1)
223 return -EINVAL;
224#endif
225
226 if (ast_modeset == 0)
227 return -EINVAL;
228 return drm_pci_init(&driver, &ast_pci_driver);
229}
230static void __exit ast_exit(void)
231{
232 drm_pci_exit(&driver, &ast_pci_driver);
233}
234
235module_init(ast_init);
236module_exit(ast_exit);
237
238MODULE_AUTHOR(DRIVER_AUTHOR);
239MODULE_DESCRIPTION(DRIVER_DESC);
240MODULE_LICENSE("GPL and additional rights");
241
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");