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| Line 37... | Line 37... | ||
| 37 | #include |
37 | #include |
| 38 | #include |
38 | #include |
| 39 | #include |
39 | #include |
| 40 | #include |
40 | #include |
| Line 41... | Line -... | ||
| 41 | - | ||
| 42 | MODULE_AUTHOR("David Airlie, Jesse Barnes"); |
- | |
| 43 | MODULE_DESCRIPTION("DRM KMS helper"); |
- | |
| 44 | MODULE_LICENSE("GPL and additional rights"); |
- | |
| 45 | 41 | ||
| Line 46... | Line 42... | ||
| 46 | static LIST_HEAD(kernel_fb_helper_list); |
42 | static LIST_HEAD(kernel_fb_helper_list); |
| 47 | 43 | ||
| 48 | /** |
44 | /** |
| Line 153... | Line 149... | ||
| 153 | bound++; |
149 | bound++; |
| 154 | } |
150 | } |
| Line 155... | Line 151... | ||
| 155 | 151 | ||
| 156 | if (bound < crtcs_bound) |
152 | if (bound < crtcs_bound) |
| - | 153 | return false; |
|
| 157 | return false; |
154 | |
| 158 | return true; |
155 | return true; |
| Line -... | Line 156... | ||
| - | 156 | } |
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| - | 157 | ||
| - | 158 | #ifdef CONFIG_MAGIC_SYSRQ |
|
| - | 159 | static void drm_fb_helper_restore_work_fn(struct work_struct *ignored) |
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| - | 160 | { |
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| - | 161 | bool ret; |
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| - | 162 | ret = drm_fb_helper_force_kernel_mode(); |
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| - | 163 | if (ret == true) |
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| - | 164 | DRM_ERROR("Failed to restore crtc configuration\n"); |
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| - | 165 | } |
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| - | 166 | static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn); |
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| - | 167 | ||
| - | 168 | static void drm_fb_helper_sysrq(int dummy1) |
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| - | 169 | { |
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| - | 170 | schedule_work(&drm_fb_helper_restore_work); |
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| - | 171 | } |
|
| - | 172 | ||
| - | 173 | static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { |
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| - | 174 | .handler = drm_fb_helper_sysrq, |
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| - | 175 | .help_msg = "force-fb(V)", |
|
| - | 176 | .action_msg = "Restore framebuffer console", |
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| - | 177 | }; |
|
| - | 178 | #else |
|
| - | 179 | ||
| 159 | } |
180 | #endif |
| 160 | 181 | ||
| 161 | static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode) |
182 | static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode) |
| 162 | { |
183 | { |
| 163 | struct drm_fb_helper *fb_helper = info->par; |
184 | struct drm_fb_helper *fb_helper = info->par; |
| Line 582... | Line 603... | ||
| 582 | struct fb_info *info) |
603 | struct fb_info *info) |
| 583 | { |
604 | { |
| 584 | struct drm_fb_helper *fb_helper = info->par; |
605 | struct drm_fb_helper *fb_helper = info->par; |
| 585 | struct drm_device *dev = fb_helper->dev; |
606 | struct drm_device *dev = fb_helper->dev; |
| 586 | struct drm_mode_set *modeset; |
607 | struct drm_mode_set *modeset; |
| 587 | struct drm_crtc *crtc; |
- | |
| 588 | int ret = 0; |
608 | int ret = 0; |
| 589 | int i; |
609 | int i; |
| Line 590... | Line 610... | ||
| 590 | 610 | ||
| 591 | drm_modeset_lock_all(dev); |
611 | drm_modeset_lock_all(dev); |
| 592 | if (!drm_fb_helper_is_bound(fb_helper)) { |
612 | if (!drm_fb_helper_is_bound(fb_helper)) { |
| 593 | drm_modeset_unlock_all(dev); |
613 | drm_modeset_unlock_all(dev); |
| 594 | return -EBUSY; |
614 | return -EBUSY; |
| Line 595... | Line 615... | ||
| 595 | } |
615 | } |
| 596 | - | ||
| 597 | for (i = 0; i < fb_helper->crtc_count; i++) { |
- | |
| 598 | crtc = fb_helper->crtc_info[i].mode_set.crtc; |
616 | |
| Line 599... | Line 617... | ||
| 599 | 617 | for (i = 0; i < fb_helper->crtc_count; i++) { |
|
| 600 | modeset = &fb_helper->crtc_info[i].mode_set; |
618 | modeset = &fb_helper->crtc_info[i].mode_set; |
| Line 1078... | Line 1096... | ||
| 1078 | int c, o; |
1096 | int c, o; |
| 1079 | struct drm_device *dev = fb_helper->dev; |
1097 | struct drm_device *dev = fb_helper->dev; |
| 1080 | struct drm_connector *connector; |
1098 | struct drm_connector *connector; |
| 1081 | struct drm_connector_helper_funcs *connector_funcs; |
1099 | struct drm_connector_helper_funcs *connector_funcs; |
| 1082 | struct drm_encoder *encoder; |
1100 | struct drm_encoder *encoder; |
| 1083 | struct drm_fb_helper_crtc *best_crtc; |
- | |
| 1084 | int my_score, best_score, score; |
1101 | int my_score, best_score, score; |
| 1085 | struct drm_fb_helper_crtc **crtcs, *crtc; |
1102 | struct drm_fb_helper_crtc **crtcs, *crtc; |
| 1086 | struct drm_fb_helper_connector *fb_helper_conn; |
1103 | struct drm_fb_helper_connector *fb_helper_conn; |
| Line 1087... | Line 1104... | ||
| 1087 | 1104 | ||
| Line 1090... | Line 1107... | ||
| 1090 | 1107 | ||
| 1091 | fb_helper_conn = fb_helper->connector_info[n]; |
1108 | fb_helper_conn = fb_helper->connector_info[n]; |
| Line 1092... | Line 1109... | ||
| 1092 | connector = fb_helper_conn->connector; |
1109 | connector = fb_helper_conn->connector; |
| 1093 | - | ||
| 1094 | best_crtcs[n] = NULL; |
1110 | |
| 1095 | best_crtc = NULL; |
1111 | best_crtcs[n] = NULL; |
| 1096 | best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height); |
1112 | best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height); |
| Line 1097... | Line 1113... | ||
| 1097 | if (modes[n] == NULL) |
1113 | if (modes[n] == NULL) |
| Line 1139... | Line 1155... | ||
| 1139 | crtcs[n] = crtc; |
1155 | crtcs[n] = crtc; |
| 1140 | memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *)); |
1156 | memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *)); |
| 1141 | score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1, |
1157 | score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1, |
| 1142 | width, height); |
1158 | width, height); |
| 1143 | if (score > best_score) { |
1159 | if (score > best_score) { |
| 1144 | best_crtc = crtc; |
- | |
| 1145 | best_score = score; |
1160 | best_score = score; |
| 1146 | memcpy(best_crtcs, crtcs, |
1161 | memcpy(best_crtcs, crtcs, |
| 1147 | dev->mode_config.num_connector * |
1162 | dev->mode_config.num_connector * |
| 1148 | sizeof(struct drm_fb_helper_crtc *)); |
1163 | sizeof(struct drm_fb_helper_crtc *)); |
| 1149 | } |
1164 | } |
| Line 1306... | Line 1321... | ||
| 1306 | * 0 on success and a non-zero error code otherwise. |
1321 | * 0 on success and a non-zero error code otherwise. |
| 1307 | */ |
1322 | */ |
| 1308 | int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) |
1323 | int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) |
| 1309 | { |
1324 | { |
| 1310 | struct drm_device *dev = fb_helper->dev; |
1325 | struct drm_device *dev = fb_helper->dev; |
| 1311 | int count = 0; |
- | |
| 1312 | u32 max_width, max_height, bpp_sel; |
1326 | u32 max_width, max_height; |
| Line 1313... | Line 1327... | ||
| 1313 | 1327 | ||
| 1314 | if (!fb_helper->fb) |
1328 | if (!fb_helper->fb) |
| Line 1315... | Line 1329... | ||
| 1315 | return 0; |
1329 | return 0; |
| Line 1322... | Line 1336... | ||
| 1322 | } |
1336 | } |
| 1323 | DRM_DEBUG_KMS("\n"); |
1337 | DRM_DEBUG_KMS("\n"); |
| Line 1324... | Line 1338... | ||
| 1324 | 1338 | ||
| 1325 | max_width = fb_helper->fb->width; |
1339 | max_width = fb_helper->fb->width; |
| 1326 | max_height = fb_helper->fb->height; |
- | |
| Line 1327... | Line 1340... | ||
| 1327 | bpp_sel = fb_helper->fb->bits_per_pixel; |
1340 | max_height = fb_helper->fb->height; |
| 1328 | - | ||
| 1329 | count = drm_fb_helper_probe_connector_modes(fb_helper, max_width, |
1341 | |
| Line 1330... | Line 1342... | ||
| 1330 | max_height); |
1342 | drm_fb_helper_probe_connector_modes(fb_helper, max_width, max_height); |
| 1331 | mutex_unlock(&fb_helper->dev->mode_config.mutex); |
1343 | mutex_unlock(&fb_helper->dev->mode_config.mutex); |
| 1332 | 1344 | ||
| Line 1337... | Line 1349... | ||
| 1337 | 1349 | ||
| 1338 | return 0; |
1350 | return 0; |
| 1339 | } |
1351 | } |
| Line -... | Line 1352... | ||
| - | 1352 | EXPORT_SYMBOL(drm_fb_helper_hotplug_event); |
|
| - | 1353 | ||
| - | 1354 | /* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT) |
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| - | 1355 | * but the module doesn't depend on any fb console symbols. At least |
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| - | 1356 | * attempt to load fbcon to avoid leaving the system without a usable console. |
|
| - | 1357 | */ |
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| - | 1358 | #if defined(CONFIG_FRAMEBUFFER_CONSOLE_MODULE) && !defined(CONFIG_EXPERT) |
|
| - | 1359 | static int __init drm_fb_helper_modinit(void) |
|
| - | 1360 | { |
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| - | 1361 | const char *name = "fbcon"; |
|
| - | 1362 | struct module *fbcon; |
|
| - | 1363 | ||
| - | 1364 | mutex_lock(&module_mutex); |
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| Line -... | Line 1365... | ||
| - | 1365 | fbcon = find_module(name); |
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| - | 1366 | mutex_unlock(&module_mutex); |
|
| - | 1367 | ||
| - | 1368 | if (!fbcon) |
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| Line -... | Line 1369... | ||
| - | 1369 | request_module_nowait(name); |
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| - | 1370 | return 0; |
|