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312fec14 DA |
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 | ||
760285e7 DH |
31 | #include <drm/drmP.h> |
32 | #include <drm/drm_crtc_helper.h> | |
312fec14 DA |
33 | |
34 | #include "ast_drv.h" | |
35 | ||
36 | int ast_modeset = -1; | |
37 | ||
38 | MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); | |
39 | module_param_named(modeset, ast_modeset, int, 0400); | |
40 | ||
41 | #define PCI_VENDOR_ASPEED 0x1a03 | |
42 | ||
43 | static 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 | ||
9baa3c34 | 54 | static const struct pci_device_id pciidlist[] = { |
312fec14 DA |
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 | ||
61 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
62 | ||
56550d94 | 63 | static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
312fec14 DA |
64 | { |
65 | return drm_get_pci_dev(pdev, ent, &driver); | |
66 | } | |
67 | ||
68 | static void | |
69 | ast_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 | ||
78 | static 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 | ||
90 | static 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); | |
312fec14 | 97 | drm_helper_resume_force_mode(dev); |
312fec14 DA |
98 | |
99 | console_lock(); | |
100 | ast_fbdev_set_suspend(dev, 0); | |
101 | console_unlock(); | |
102 | return error; | |
103 | } | |
104 | ||
105 | static 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 | ||
120 | static 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 | } | |
134 | static 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 | ||
141 | static 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 | ||
152 | static 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 | ||
159 | static 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 | ||
167 | static 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 | ||
176 | static 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 | ||
184 | static 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, | |
804d74ab KP |
191 | #ifdef CONFIG_COMPAT |
192 | .compat_ioctl = drm_compat_ioctl, | |
193 | #endif | |
312fec14 DA |
194 | .read = drm_read, |
195 | }; | |
196 | ||
197 | static struct drm_driver driver = { | |
28185647 | 198 | .driver_features = DRIVER_MODESET | DRIVER_GEM, |
312fec14 DA |
199 | |
200 | .load = ast_driver_load, | |
201 | .unload = ast_driver_unload, | |
915b4d11 | 202 | .set_busid = drm_pci_set_busid, |
312fec14 DA |
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 | ||
312fec14 DA |
212 | .gem_free_object = ast_gem_free_object, |
213 | .dumb_create = ast_dumb_create, | |
214 | .dumb_map_offset = ast_dumb_mmap_offset, | |
43387b37 | 215 | .dumb_destroy = drm_gem_dumb_destroy, |
312fec14 DA |
216 | |
217 | }; | |
218 | ||
219 | static int __init ast_init(void) | |
220 | { | |
4688a69d | 221 | #ifdef CONFIG_VGA_CONSOLE |
312fec14 DA |
222 | if (vgacon_text_force() && ast_modeset == -1) |
223 | return -EINVAL; | |
4688a69d | 224 | #endif |
312fec14 DA |
225 | |
226 | if (ast_modeset == 0) | |
227 | return -EINVAL; | |
228 | return drm_pci_init(&driver, &ast_pci_driver); | |
229 | } | |
230 | static void __exit ast_exit(void) | |
231 | { | |
232 | drm_pci_exit(&driver, &ast_pci_driver); | |
233 | } | |
234 | ||
235 | module_init(ast_init); | |
236 | module_exit(ast_exit); | |
237 | ||
238 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
239 | MODULE_DESCRIPTION(DRIVER_DESC); | |
240 | MODULE_LICENSE("GPL and additional rights"); | |
241 |