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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 | ||
31 | #include "drmP.h" | |
32 | #include "drm.h" | |
33 | #include "drm_crtc_helper.h" | |
34 | ||
35 | #include "ast_drv.h" | |
36 | ||
37 | int ast_modeset = -1; | |
38 | ||
39 | MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); | |
40 | module_param_named(modeset, ast_modeset, int, 0400); | |
41 | ||
42 | #define PCI_VENDOR_ASPEED 0x1a03 | |
43 | ||
44 | static struct drm_driver driver; | |
45 | ||
46 | #define AST_VGA_DEVICE(id, info) { \ | |
47 | .class = PCI_BASE_CLASS_DISPLAY << 16, \ | |
48 | .class_mask = 0xff0000, \ | |
49 | .vendor = PCI_VENDOR_ASPEED, \ | |
50 | .device = id, \ | |
51 | .subvendor = PCI_ANY_ID, \ | |
52 | .subdevice = PCI_ANY_ID, \ | |
53 | .driver_data = (unsigned long) info } | |
54 | ||
55 | static DEFINE_PCI_DEVICE_TABLE(pciidlist) = { | |
56 | AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL), | |
57 | AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL), | |
58 | /* AST_VGA_DEVICE(PCI_CHIP_AST1180, NULL), - don't bind to 1180 for now */ | |
59 | {0, 0, 0}, | |
60 | }; | |
61 | ||
62 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
63 | ||
64 | static int __devinit | |
65 | ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
66 | { | |
67 | return drm_get_pci_dev(pdev, ent, &driver); | |
68 | } | |
69 | ||
70 | static void | |
71 | ast_pci_remove(struct pci_dev *pdev) | |
72 | { | |
73 | struct drm_device *dev = pci_get_drvdata(pdev); | |
74 | ||
75 | drm_put_dev(dev); | |
76 | } | |
77 | ||
78 | ||
79 | ||
80 | static int ast_drm_freeze(struct drm_device *dev) | |
81 | { | |
82 | drm_kms_helper_poll_disable(dev); | |
83 | ||
84 | pci_save_state(dev->pdev); | |
85 | ||
86 | console_lock(); | |
87 | ast_fbdev_set_suspend(dev, 1); | |
88 | console_unlock(); | |
89 | return 0; | |
90 | } | |
91 | ||
92 | static int ast_drm_thaw(struct drm_device *dev) | |
93 | { | |
94 | int error = 0; | |
95 | ||
96 | ast_post_gpu(dev); | |
97 | ||
98 | drm_mode_config_reset(dev); | |
99 | mutex_lock(&dev->mode_config.mutex); | |
100 | drm_helper_resume_force_mode(dev); | |
101 | mutex_unlock(&dev->mode_config.mutex); | |
102 | ||
103 | console_lock(); | |
104 | ast_fbdev_set_suspend(dev, 0); | |
105 | console_unlock(); | |
106 | return error; | |
107 | } | |
108 | ||
109 | static int ast_drm_resume(struct drm_device *dev) | |
110 | { | |
111 | int ret; | |
112 | ||
113 | if (pci_enable_device(dev->pdev)) | |
114 | return -EIO; | |
115 | ||
116 | ret = ast_drm_thaw(dev); | |
117 | if (ret) | |
118 | return ret; | |
119 | ||
120 | drm_kms_helper_poll_enable(dev); | |
121 | return 0; | |
122 | } | |
123 | ||
124 | static int ast_pm_suspend(struct device *dev) | |
125 | { | |
126 | struct pci_dev *pdev = to_pci_dev(dev); | |
127 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
128 | int error; | |
129 | ||
130 | error = ast_drm_freeze(ddev); | |
131 | if (error) | |
132 | return error; | |
133 | ||
134 | pci_disable_device(pdev); | |
135 | pci_set_power_state(pdev, PCI_D3hot); | |
136 | return 0; | |
137 | } | |
138 | static int ast_pm_resume(struct device *dev) | |
139 | { | |
140 | struct pci_dev *pdev = to_pci_dev(dev); | |
141 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
142 | return ast_drm_resume(ddev); | |
143 | } | |
144 | ||
145 | static int ast_pm_freeze(struct device *dev) | |
146 | { | |
147 | struct pci_dev *pdev = to_pci_dev(dev); | |
148 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
149 | ||
150 | if (!ddev || !ddev->dev_private) | |
151 | return -ENODEV; | |
152 | return ast_drm_freeze(ddev); | |
153 | ||
154 | } | |
155 | ||
156 | static int ast_pm_thaw(struct device *dev) | |
157 | { | |
158 | struct pci_dev *pdev = to_pci_dev(dev); | |
159 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
160 | return ast_drm_thaw(ddev); | |
161 | } | |
162 | ||
163 | static int ast_pm_poweroff(struct device *dev) | |
164 | { | |
165 | struct pci_dev *pdev = to_pci_dev(dev); | |
166 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
167 | ||
168 | return ast_drm_freeze(ddev); | |
169 | } | |
170 | ||
171 | static const struct dev_pm_ops ast_pm_ops = { | |
172 | .suspend = ast_pm_suspend, | |
173 | .resume = ast_pm_resume, | |
174 | .freeze = ast_pm_freeze, | |
175 | .thaw = ast_pm_thaw, | |
176 | .poweroff = ast_pm_poweroff, | |
177 | .restore = ast_pm_resume, | |
178 | }; | |
179 | ||
180 | static struct pci_driver ast_pci_driver = { | |
181 | .name = DRIVER_NAME, | |
182 | .id_table = pciidlist, | |
183 | .probe = ast_pci_probe, | |
184 | .remove = ast_pci_remove, | |
185 | .driver.pm = &ast_pm_ops, | |
186 | }; | |
187 | ||
188 | static const struct file_operations ast_fops = { | |
189 | .owner = THIS_MODULE, | |
190 | .open = drm_open, | |
191 | .release = drm_release, | |
192 | .unlocked_ioctl = drm_ioctl, | |
193 | .mmap = ast_mmap, | |
194 | .poll = drm_poll, | |
195 | .fasync = drm_fasync, | |
804d74ab KP |
196 | #ifdef CONFIG_COMPAT |
197 | .compat_ioctl = drm_compat_ioctl, | |
198 | #endif | |
312fec14 DA |
199 | .read = drm_read, |
200 | }; | |
201 | ||
202 | static struct drm_driver driver = { | |
203 | .driver_features = DRIVER_USE_MTRR | DRIVER_MODESET | DRIVER_GEM, | |
204 | .dev_priv_size = 0, | |
205 | ||
206 | .load = ast_driver_load, | |
207 | .unload = ast_driver_unload, | |
208 | ||
209 | .fops = &ast_fops, | |
210 | .name = DRIVER_NAME, | |
211 | .desc = DRIVER_DESC, | |
212 | .date = DRIVER_DATE, | |
213 | .major = DRIVER_MAJOR, | |
214 | .minor = DRIVER_MINOR, | |
215 | .patchlevel = DRIVER_PATCHLEVEL, | |
216 | ||
217 | .gem_init_object = ast_gem_init_object, | |
218 | .gem_free_object = ast_gem_free_object, | |
219 | .dumb_create = ast_dumb_create, | |
220 | .dumb_map_offset = ast_dumb_mmap_offset, | |
221 | .dumb_destroy = ast_dumb_destroy, | |
222 | ||
223 | }; | |
224 | ||
225 | static int __init ast_init(void) | |
226 | { | |
4688a69d | 227 | #ifdef CONFIG_VGA_CONSOLE |
312fec14 DA |
228 | if (vgacon_text_force() && ast_modeset == -1) |
229 | return -EINVAL; | |
4688a69d | 230 | #endif |
312fec14 DA |
231 | |
232 | if (ast_modeset == 0) | |
233 | return -EINVAL; | |
234 | return drm_pci_init(&driver, &ast_pci_driver); | |
235 | } | |
236 | static void __exit ast_exit(void) | |
237 | { | |
238 | drm_pci_exit(&driver, &ast_pci_driver); | |
239 | } | |
240 | ||
241 | module_init(ast_init); | |
242 | module_exit(ast_exit); | |
243 | ||
244 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
245 | MODULE_DESCRIPTION(DRIVER_DESC); | |
246 | MODULE_LICENSE("GPL and additional rights"); | |
247 |