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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 | ||
54 | static DEFINE_PCI_DEVICE_TABLE(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 | ||
61 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
62 | ||
63 | static int __devinit | |
64 | ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
65 | { | |
66 | return drm_get_pci_dev(pdev, ent, &driver); | |
67 | } | |
68 | ||
69 | static void | |
70 | ast_pci_remove(struct pci_dev *pdev) | |
71 | { | |
72 | struct drm_device *dev = pci_get_drvdata(pdev); | |
73 | ||
74 | drm_put_dev(dev); | |
75 | } | |
76 | ||
77 | ||
78 | ||
79 | static int ast_drm_freeze(struct drm_device *dev) | |
80 | { | |
81 | drm_kms_helper_poll_disable(dev); | |
82 | ||
83 | pci_save_state(dev->pdev); | |
84 | ||
85 | console_lock(); | |
86 | ast_fbdev_set_suspend(dev, 1); | |
87 | console_unlock(); | |
88 | return 0; | |
89 | } | |
90 | ||
91 | static int ast_drm_thaw(struct drm_device *dev) | |
92 | { | |
93 | int error = 0; | |
94 | ||
95 | ast_post_gpu(dev); | |
96 | ||
97 | drm_mode_config_reset(dev); | |
98 | mutex_lock(&dev->mode_config.mutex); | |
99 | drm_helper_resume_force_mode(dev); | |
100 | mutex_unlock(&dev->mode_config.mutex); | |
101 | ||
102 | console_lock(); | |
103 | ast_fbdev_set_suspend(dev, 0); | |
104 | console_unlock(); | |
105 | return error; | |
106 | } | |
107 | ||
108 | static int ast_drm_resume(struct drm_device *dev) | |
109 | { | |
110 | int ret; | |
111 | ||
112 | if (pci_enable_device(dev->pdev)) | |
113 | return -EIO; | |
114 | ||
115 | ret = ast_drm_thaw(dev); | |
116 | if (ret) | |
117 | return ret; | |
118 | ||
119 | drm_kms_helper_poll_enable(dev); | |
120 | return 0; | |
121 | } | |
122 | ||
123 | static int ast_pm_suspend(struct device *dev) | |
124 | { | |
125 | struct pci_dev *pdev = to_pci_dev(dev); | |
126 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
127 | int error; | |
128 | ||
129 | error = ast_drm_freeze(ddev); | |
130 | if (error) | |
131 | return error; | |
132 | ||
133 | pci_disable_device(pdev); | |
134 | pci_set_power_state(pdev, PCI_D3hot); | |
135 | return 0; | |
136 | } | |
137 | static int ast_pm_resume(struct device *dev) | |
138 | { | |
139 | struct pci_dev *pdev = to_pci_dev(dev); | |
140 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
141 | return ast_drm_resume(ddev); | |
142 | } | |
143 | ||
144 | static int ast_pm_freeze(struct device *dev) | |
145 | { | |
146 | struct pci_dev *pdev = to_pci_dev(dev); | |
147 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
148 | ||
149 | if (!ddev || !ddev->dev_private) | |
150 | return -ENODEV; | |
151 | return ast_drm_freeze(ddev); | |
152 | ||
153 | } | |
154 | ||
155 | static int ast_pm_thaw(struct device *dev) | |
156 | { | |
157 | struct pci_dev *pdev = to_pci_dev(dev); | |
158 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
159 | return ast_drm_thaw(ddev); | |
160 | } | |
161 | ||
162 | static int ast_pm_poweroff(struct device *dev) | |
163 | { | |
164 | struct pci_dev *pdev = to_pci_dev(dev); | |
165 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
166 | ||
167 | return ast_drm_freeze(ddev); | |
168 | } | |
169 | ||
170 | static const struct dev_pm_ops ast_pm_ops = { | |
171 | .suspend = ast_pm_suspend, | |
172 | .resume = ast_pm_resume, | |
173 | .freeze = ast_pm_freeze, | |
174 | .thaw = ast_pm_thaw, | |
175 | .poweroff = ast_pm_poweroff, | |
176 | .restore = ast_pm_resume, | |
177 | }; | |
178 | ||
179 | static struct pci_driver ast_pci_driver = { | |
180 | .name = DRIVER_NAME, | |
181 | .id_table = pciidlist, | |
182 | .probe = ast_pci_probe, | |
183 | .remove = ast_pci_remove, | |
184 | .driver.pm = &ast_pm_ops, | |
185 | }; | |
186 | ||
187 | static const struct file_operations ast_fops = { | |
188 | .owner = THIS_MODULE, | |
189 | .open = drm_open, | |
190 | .release = drm_release, | |
191 | .unlocked_ioctl = drm_ioctl, | |
192 | .mmap = ast_mmap, | |
193 | .poll = drm_poll, | |
194 | .fasync = drm_fasync, | |
804d74ab KP |
195 | #ifdef CONFIG_COMPAT |
196 | .compat_ioctl = drm_compat_ioctl, | |
197 | #endif | |
312fec14 DA |
198 | .read = drm_read, |
199 | }; | |
200 | ||
201 | static struct drm_driver driver = { | |
202 | .driver_features = DRIVER_USE_MTRR | DRIVER_MODESET | DRIVER_GEM, | |
203 | .dev_priv_size = 0, | |
204 | ||
205 | .load = ast_driver_load, | |
206 | .unload = ast_driver_unload, | |
207 | ||
208 | .fops = &ast_fops, | |
209 | .name = DRIVER_NAME, | |
210 | .desc = DRIVER_DESC, | |
211 | .date = DRIVER_DATE, | |
212 | .major = DRIVER_MAJOR, | |
213 | .minor = DRIVER_MINOR, | |
214 | .patchlevel = DRIVER_PATCHLEVEL, | |
215 | ||
216 | .gem_init_object = ast_gem_init_object, | |
217 | .gem_free_object = ast_gem_free_object, | |
218 | .dumb_create = ast_dumb_create, | |
219 | .dumb_map_offset = ast_dumb_mmap_offset, | |
220 | .dumb_destroy = ast_dumb_destroy, | |
221 | ||
222 | }; | |
223 | ||
224 | static int __init ast_init(void) | |
225 | { | |
4688a69d | 226 | #ifdef CONFIG_VGA_CONSOLE |
312fec14 DA |
227 | if (vgacon_text_force() && ast_modeset == -1) |
228 | return -EINVAL; | |
4688a69d | 229 | #endif |
312fec14 DA |
230 | |
231 | if (ast_modeset == 0) | |
232 | return -EINVAL; | |
233 | return drm_pci_init(&driver, &ast_pci_driver); | |
234 | } | |
235 | static void __exit ast_exit(void) | |
236 | { | |
237 | drm_pci_exit(&driver, &ast_pci_driver); | |
238 | } | |
239 | ||
240 | module_init(ast_init); | |
241 | module_exit(ast_exit); | |
242 | ||
243 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
244 | MODULE_DESCRIPTION(DRIVER_DESC); | |
245 | MODULE_LICENSE("GPL and additional rights"); | |
246 |