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1 | /* |
1 | /* |
2 | * Copyright (c) 2006-2009 Red Hat Inc. |
2 | * Copyright (c) 2006-2009 Red Hat Inc. |
3 | * Copyright (c) 2006-2008 Intel Corporation |
3 | * Copyright (c) 2006-2008 Intel Corporation |
4 | * Copyright (c) 2007 Dave Airlie |
4 | * Copyright (c) 2007 Dave Airlie |
5 | * |
5 | * |
6 | * DRM framebuffer helper functions |
6 | * DRM framebuffer helper functions |
7 | * |
7 | * |
8 | * Permission to use, copy, modify, distribute, and sell this software and its |
8 | * Permission to use, copy, modify, distribute, and sell this software and its |
9 | * documentation for any purpose is hereby granted without fee, provided that |
9 | * documentation for any purpose is hereby granted without fee, provided that |
10 | * the above copyright notice appear in all copies and that both that copyright |
10 | * the above copyright notice appear in all copies and that both that copyright |
11 | * notice and this permission notice appear in supporting documentation, and |
11 | * notice and this permission notice appear in supporting documentation, and |
12 | * that the name of the copyright holders not be used in advertising or |
12 | * that the name of the copyright holders not be used in advertising or |
13 | * publicity pertaining to distribution of the software without specific, |
13 | * publicity pertaining to distribution of the software without specific, |
14 | * written prior permission. The copyright holders make no representations |
14 | * written prior permission. The copyright holders make no representations |
15 | * about the suitability of this software for any purpose. It is provided "as |
15 | * about the suitability of this software for any purpose. It is provided "as |
16 | * is" without express or implied warranty. |
16 | * is" without express or implied warranty. |
17 | * |
17 | * |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
24 | * OF THIS SOFTWARE. |
24 | * OF THIS SOFTWARE. |
25 | * |
25 | * |
26 | * Authors: |
26 | * Authors: |
27 | * Dave Airlie |
27 | * Dave Airlie |
28 | * Jesse Barnes |
28 | * Jesse Barnes |
29 | */ |
29 | */ |
30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
31 | 31 | ||
32 | #include |
32 | #include |
33 | #include |
33 | #include |
34 | #include |
34 | #include |
35 | #include |
35 | #include |
36 | #include |
36 | #include |
37 | #include |
37 | #include |
38 | #include |
38 | #include |
39 | #include |
39 | #include |
40 | #include |
40 | #include |
41 | 41 | ||
42 | static LIST_HEAD(kernel_fb_helper_list); |
42 | static LIST_HEAD(kernel_fb_helper_list); |
43 | 43 | ||
44 | /** |
44 | /** |
45 | * DOC: fbdev helpers |
45 | * DOC: fbdev helpers |
46 | * |
46 | * |
47 | * The fb helper functions are useful to provide an fbdev on top of a drm kernel |
47 | * The fb helper functions are useful to provide an fbdev on top of a drm kernel |
48 | * mode setting driver. They can be used mostly independently from the crtc |
48 | * mode setting driver. They can be used mostly independently from the crtc |
49 | * helper functions used by many drivers to implement the kernel mode setting |
49 | * helper functions used by many drivers to implement the kernel mode setting |
50 | * interfaces. |
50 | * interfaces. |
51 | * |
51 | * |
52 | * Initialization is done as a four-step process with drm_fb_helper_prepare(), |
52 | * Initialization is done as a four-step process with drm_fb_helper_prepare(), |
53 | * drm_fb_helper_init(), drm_fb_helper_single_add_all_connectors() and |
53 | * drm_fb_helper_init(), drm_fb_helper_single_add_all_connectors() and |
54 | * drm_fb_helper_initial_config(). Drivers with fancier requirements than the |
54 | * drm_fb_helper_initial_config(). Drivers with fancier requirements than the |
55 | * default behaviour can override the third step with their own code. |
55 | * default behaviour can override the third step with their own code. |
56 | * Teardown is done with drm_fb_helper_fini(). |
56 | * Teardown is done with drm_fb_helper_fini(). |
57 | * |
57 | * |
58 | * At runtime drivers should restore the fbdev console by calling |
58 | * At runtime drivers should restore the fbdev console by calling |
59 | * drm_fb_helper_restore_fbdev_mode() from their ->lastclose callback. They |
59 | * drm_fb_helper_restore_fbdev_mode() from their ->lastclose callback. They |
60 | * should also notify the fb helper code from updates to the output |
60 | * should also notify the fb helper code from updates to the output |
61 | * configuration by calling drm_fb_helper_hotplug_event(). For easier |
61 | * configuration by calling drm_fb_helper_hotplug_event(). For easier |
62 | * integration with the output polling code in drm_crtc_helper.c the modeset |
62 | * integration with the output polling code in drm_crtc_helper.c the modeset |
63 | * code provides a ->output_poll_changed callback. |
63 | * code provides a ->output_poll_changed callback. |
64 | * |
64 | * |
65 | * All other functions exported by the fb helper library can be used to |
65 | * All other functions exported by the fb helper library can be used to |
66 | * implement the fbdev driver interface by the driver. |
66 | * implement the fbdev driver interface by the driver. |
67 | * |
67 | * |
68 | * It is possible, though perhaps somewhat tricky, to implement race-free |
68 | * It is possible, though perhaps somewhat tricky, to implement race-free |
69 | * hotplug detection using the fbdev helpers. The drm_fb_helper_prepare() |
69 | * hotplug detection using the fbdev helpers. The drm_fb_helper_prepare() |
70 | * helper must be called first to initialize the minimum required to make |
70 | * helper must be called first to initialize the minimum required to make |
71 | * hotplug detection work. Drivers also need to make sure to properly set up |
71 | * hotplug detection work. Drivers also need to make sure to properly set up |
72 | * the dev->mode_config.funcs member. After calling drm_kms_helper_poll_init() |
72 | * the dev->mode_config.funcs member. After calling drm_kms_helper_poll_init() |
73 | * it is safe to enable interrupts and start processing hotplug events. At the |
73 | * it is safe to enable interrupts and start processing hotplug events. At the |
74 | * same time, drivers should initialize all modeset objects such as CRTCs, |
74 | * same time, drivers should initialize all modeset objects such as CRTCs, |
75 | * encoders and connectors. To finish up the fbdev helper initialization, the |
75 | * encoders and connectors. To finish up the fbdev helper initialization, the |
76 | * drm_fb_helper_init() function is called. To probe for all attached displays |
76 | * drm_fb_helper_init() function is called. To probe for all attached displays |
77 | * and set up an initial configuration using the detected hardware, drivers |
77 | * and set up an initial configuration using the detected hardware, drivers |
78 | * should call drm_fb_helper_single_add_all_connectors() followed by |
78 | * should call drm_fb_helper_single_add_all_connectors() followed by |
79 | * drm_fb_helper_initial_config(). |
79 | * drm_fb_helper_initial_config(). |
80 | */ |
80 | */ |
81 | 81 | ||
82 | /** |
82 | /** |
83 | * drm_fb_helper_single_add_all_connectors() - add all connectors to fbdev |
83 | * drm_fb_helper_single_add_all_connectors() - add all connectors to fbdev |
84 | * emulation helper |
84 | * emulation helper |
85 | * @fb_helper: fbdev initialized with drm_fb_helper_init |
85 | * @fb_helper: fbdev initialized with drm_fb_helper_init |
86 | * |
86 | * |
87 | * This functions adds all the available connectors for use with the given |
87 | * This functions adds all the available connectors for use with the given |
88 | * fb_helper. This is a separate step to allow drivers to freely assign |
88 | * fb_helper. This is a separate step to allow drivers to freely assign |
89 | * connectors to the fbdev, e.g. if some are reserved for special purposes or |
89 | * connectors to the fbdev, e.g. if some are reserved for special purposes or |
90 | * not adequate to be used for the fbcon. |
90 | * not adequate to be used for the fbcon. |
91 | * |
91 | * |
92 | * Since this is part of the initial setup before the fbdev is published, no |
92 | * Since this is part of the initial setup before the fbdev is published, no |
93 | * locking is required. |
93 | * locking is required. |
94 | */ |
94 | */ |
95 | int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper) |
95 | int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper) |
96 | { |
96 | { |
97 | struct drm_device *dev = fb_helper->dev; |
97 | struct drm_device *dev = fb_helper->dev; |
98 | struct drm_connector *connector; |
98 | struct drm_connector *connector; |
99 | int i; |
99 | int i; |
100 | 100 | ||
101 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
101 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
102 | struct drm_fb_helper_connector *fb_helper_connector; |
102 | struct drm_fb_helper_connector *fb_helper_connector; |
103 | 103 | ||
104 | fb_helper_connector = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL); |
104 | fb_helper_connector = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL); |
105 | if (!fb_helper_connector) |
105 | if (!fb_helper_connector) |
106 | goto fail; |
106 | goto fail; |
107 | 107 | ||
108 | fb_helper_connector->connector = connector; |
108 | fb_helper_connector->connector = connector; |
109 | fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector; |
109 | fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector; |
110 | } |
110 | } |
111 | return 0; |
111 | return 0; |
112 | fail: |
112 | fail: |
113 | for (i = 0; i < fb_helper->connector_count; i++) { |
113 | for (i = 0; i < fb_helper->connector_count; i++) { |
114 | kfree(fb_helper->connector_info[i]); |
114 | kfree(fb_helper->connector_info[i]); |
115 | fb_helper->connector_info[i] = NULL; |
115 | fb_helper->connector_info[i] = NULL; |
116 | } |
116 | } |
117 | fb_helper->connector_count = 0; |
117 | fb_helper->connector_count = 0; |
118 | return -ENOMEM; |
118 | return -ENOMEM; |
119 | } |
119 | } |
120 | EXPORT_SYMBOL(drm_fb_helper_single_add_all_connectors); |
120 | EXPORT_SYMBOL(drm_fb_helper_single_add_all_connectors); |
121 | 121 | ||
122 | int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector) |
122 | int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector) |
123 | { |
123 | { |
124 | struct drm_fb_helper_connector **temp; |
124 | struct drm_fb_helper_connector **temp; |
125 | struct drm_fb_helper_connector *fb_helper_connector; |
125 | struct drm_fb_helper_connector *fb_helper_connector; |
126 | 126 | ||
127 | WARN_ON(!mutex_is_locked(&fb_helper->dev->mode_config.mutex)); |
127 | WARN_ON(!mutex_is_locked(&fb_helper->dev->mode_config.mutex)); |
128 | if (fb_helper->connector_count + 1 > fb_helper->connector_info_alloc_count) { |
128 | if (fb_helper->connector_count + 1 > fb_helper->connector_info_alloc_count) { |
129 | temp = krealloc(fb_helper->connector_info, sizeof(struct drm_fb_helper_connector) * (fb_helper->connector_count + 1), GFP_KERNEL); |
129 | temp = krealloc(fb_helper->connector_info, sizeof(struct drm_fb_helper_connector *) * (fb_helper->connector_count + 1), GFP_KERNEL); |
130 | if (!temp) |
130 | if (!temp) |
131 | return -ENOMEM; |
131 | return -ENOMEM; |
132 | 132 | ||
133 | fb_helper->connector_info_alloc_count = fb_helper->connector_count + 1; |
133 | fb_helper->connector_info_alloc_count = fb_helper->connector_count + 1; |
134 | fb_helper->connector_info = temp; |
134 | fb_helper->connector_info = temp; |
135 | } |
135 | } |
136 | 136 | ||
137 | 137 | ||
138 | fb_helper_connector = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL); |
138 | fb_helper_connector = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL); |
139 | if (!fb_helper_connector) |
139 | if (!fb_helper_connector) |
140 | return -ENOMEM; |
140 | return -ENOMEM; |
141 | 141 | ||
142 | fb_helper_connector->connector = connector; |
142 | fb_helper_connector->connector = connector; |
143 | fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector; |
143 | fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector; |
144 | return 0; |
144 | return 0; |
145 | } |
145 | } |
146 | EXPORT_SYMBOL(drm_fb_helper_add_one_connector); |
146 | EXPORT_SYMBOL(drm_fb_helper_add_one_connector); |
147 | 147 | ||
148 | int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper, |
148 | int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper, |
149 | struct drm_connector *connector) |
149 | struct drm_connector *connector) |
150 | { |
150 | { |
151 | struct drm_fb_helper_connector *fb_helper_connector; |
151 | struct drm_fb_helper_connector *fb_helper_connector; |
152 | int i, j; |
152 | int i, j; |
153 | 153 | ||
154 | WARN_ON(!mutex_is_locked(&fb_helper->dev->mode_config.mutex)); |
154 | WARN_ON(!mutex_is_locked(&fb_helper->dev->mode_config.mutex)); |
155 | 155 | ||
156 | for (i = 0; i < fb_helper->connector_count; i++) { |
156 | for (i = 0; i < fb_helper->connector_count; i++) { |
157 | if (fb_helper->connector_info[i]->connector == connector) |
157 | if (fb_helper->connector_info[i]->connector == connector) |
158 | break; |
158 | break; |
159 | } |
159 | } |
160 | 160 | ||
161 | if (i == fb_helper->connector_count) |
161 | if (i == fb_helper->connector_count) |
162 | return -EINVAL; |
162 | return -EINVAL; |
163 | fb_helper_connector = fb_helper->connector_info[i]; |
163 | fb_helper_connector = fb_helper->connector_info[i]; |
164 | 164 | ||
165 | for (j = i + 1; j < fb_helper->connector_count; j++) { |
165 | for (j = i + 1; j < fb_helper->connector_count; j++) { |
166 | fb_helper->connector_info[j - 1] = fb_helper->connector_info[j]; |
166 | fb_helper->connector_info[j - 1] = fb_helper->connector_info[j]; |
167 | } |
167 | } |
168 | fb_helper->connector_count--; |
168 | fb_helper->connector_count--; |
169 | kfree(fb_helper_connector); |
169 | kfree(fb_helper_connector); |
170 | return 0; |
170 | return 0; |
171 | } |
171 | } |
172 | EXPORT_SYMBOL(drm_fb_helper_remove_one_connector); |
172 | EXPORT_SYMBOL(drm_fb_helper_remove_one_connector); |
- | 173 | ||
173 | static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper) |
174 | static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper) |
174 | { |
175 | { |
175 | uint16_t *r_base, *g_base, *b_base; |
176 | uint16_t *r_base, *g_base, *b_base; |
176 | int i; |
177 | int i; |
177 | 178 | ||
178 | if (helper->funcs->gamma_get == NULL) |
179 | if (helper->funcs->gamma_get == NULL) |
179 | return; |
180 | return; |
180 | 181 | ||
181 | r_base = crtc->gamma_store; |
182 | r_base = crtc->gamma_store; |
182 | g_base = r_base + crtc->gamma_size; |
183 | g_base = r_base + crtc->gamma_size; |
183 | b_base = g_base + crtc->gamma_size; |
184 | b_base = g_base + crtc->gamma_size; |
184 | 185 | ||
185 | for (i = 0; i < crtc->gamma_size; i++) |
186 | for (i = 0; i < crtc->gamma_size; i++) |
186 | helper->funcs->gamma_get(crtc, &r_base[i], &g_base[i], &b_base[i], i); |
187 | helper->funcs->gamma_get(crtc, &r_base[i], &g_base[i], &b_base[i], i); |
187 | } |
188 | } |
188 | 189 | ||
189 | static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc) |
190 | static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc) |
190 | { |
191 | { |
191 | uint16_t *r_base, *g_base, *b_base; |
192 | uint16_t *r_base, *g_base, *b_base; |
192 | 193 | ||
193 | if (crtc->funcs->gamma_set == NULL) |
194 | if (crtc->funcs->gamma_set == NULL) |
194 | return; |
195 | return; |
195 | 196 | ||
196 | r_base = crtc->gamma_store; |
197 | r_base = crtc->gamma_store; |
197 | g_base = r_base + crtc->gamma_size; |
198 | g_base = r_base + crtc->gamma_size; |
198 | b_base = g_base + crtc->gamma_size; |
199 | b_base = g_base + crtc->gamma_size; |
199 | 200 | ||
200 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
201 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
201 | } |
202 | } |
202 | 203 | ||
203 | 204 | ||
204 | static bool restore_fbdev_mode(struct drm_fb_helper *fb_helper) |
205 | static bool restore_fbdev_mode(struct drm_fb_helper *fb_helper) |
205 | { |
206 | { |
206 | struct drm_device *dev = fb_helper->dev; |
207 | struct drm_device *dev = fb_helper->dev; |
207 | struct drm_plane *plane; |
208 | struct drm_plane *plane; |
208 | bool error = false; |
209 | bool error = false; |
209 | int i; |
210 | int i; |
210 | 211 | ||
211 | drm_warn_on_modeset_not_all_locked(dev); |
212 | drm_warn_on_modeset_not_all_locked(dev); |
212 | 213 | ||
213 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) |
214 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
214 | if (plane->type != DRM_PLANE_TYPE_PRIMARY) |
215 | if (plane->type != DRM_PLANE_TYPE_PRIMARY) |
215 | drm_plane_force_disable(plane); |
216 | drm_plane_force_disable(plane); |
- | 217 | ||
- | 218 | if (dev->mode_config.rotation_property) { |
|
- | 219 | drm_mode_plane_set_obj_prop(plane, |
|
- | 220 | dev->mode_config.rotation_property, |
|
- | 221 | BIT(DRM_ROTATE_0)); |
|
- | 222 | } |
|
- | 223 | } |
|
216 | 224 | ||
217 | for (i = 0; i < fb_helper->crtc_count; i++) { |
225 | for (i = 0; i < fb_helper->crtc_count; i++) { |
218 | struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set; |
226 | struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set; |
219 | struct drm_crtc *crtc = mode_set->crtc; |
227 | struct drm_crtc *crtc = mode_set->crtc; |
220 | int ret; |
228 | int ret; |
221 | 229 | ||
222 | if (crtc->funcs->cursor_set) { |
230 | if (crtc->funcs->cursor_set) { |
223 | ret = crtc->funcs->cursor_set(crtc, NULL, 0, 0, 0); |
231 | ret = crtc->funcs->cursor_set(crtc, NULL, 0, 0, 0); |
224 | if (ret) |
232 | if (ret) |
225 | error = true; |
233 | error = true; |
226 | } |
234 | } |
227 | 235 | ||
228 | ret = drm_mode_set_config_internal(mode_set); |
236 | ret = drm_mode_set_config_internal(mode_set); |
229 | if (ret) |
237 | if (ret) |
230 | error = true; |
238 | error = true; |
231 | } |
239 | } |
232 | return error; |
240 | return error; |
233 | } |
241 | } |
234 | /** |
242 | /** |
235 | * drm_fb_helper_restore_fbdev_mode_unlocked - restore fbdev configuration |
243 | * drm_fb_helper_restore_fbdev_mode_unlocked - restore fbdev configuration |
236 | * @fb_helper: fbcon to restore |
244 | * @fb_helper: fbcon to restore |
237 | * |
245 | * |
238 | * This should be called from driver's drm ->lastclose callback |
246 | * This should be called from driver's drm ->lastclose callback |
239 | * when implementing an fbcon on top of kms using this helper. This ensures that |
247 | * when implementing an fbcon on top of kms using this helper. This ensures that |
240 | * the user isn't greeted with a black screen when e.g. X dies. |
248 | * the user isn't greeted with a black screen when e.g. X dies. |
241 | */ |
249 | */ |
242 | bool drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper) |
250 | bool drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper) |
243 | { |
251 | { |
244 | struct drm_device *dev = fb_helper->dev; |
252 | struct drm_device *dev = fb_helper->dev; |
245 | bool ret; |
253 | bool ret; |
- | 254 | bool do_delayed = false; |
|
- | 255 | ||
246 | drm_modeset_lock_all(dev); |
256 | drm_modeset_lock_all(dev); |
247 | ret = restore_fbdev_mode(fb_helper); |
257 | ret = restore_fbdev_mode(fb_helper); |
248 | drm_modeset_unlock_all(dev); |
258 | drm_modeset_unlock_all(dev); |
249 | return ret; |
259 | return ret; |
250 | } |
260 | } |
251 | EXPORT_SYMBOL(drm_fb_helper_restore_fbdev_mode_unlocked); |
261 | EXPORT_SYMBOL(drm_fb_helper_restore_fbdev_mode_unlocked); |
252 | 262 | ||
253 | static bool drm_fb_helper_is_bound(struct drm_fb_helper *fb_helper) |
263 | static bool drm_fb_helper_is_bound(struct drm_fb_helper *fb_helper) |
254 | { |
264 | { |
255 | struct drm_device *dev = fb_helper->dev; |
265 | struct drm_device *dev = fb_helper->dev; |
256 | struct drm_crtc *crtc; |
266 | struct drm_crtc *crtc; |
257 | int bound = 0, crtcs_bound = 0; |
267 | int bound = 0, crtcs_bound = 0; |
258 | 268 | ||
259 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
269 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
260 | if (crtc->primary->fb) |
270 | if (crtc->primary->fb) |
261 | crtcs_bound++; |
271 | crtcs_bound++; |
262 | if (crtc->primary->fb == fb_helper->fb) |
272 | if (crtc->primary->fb == fb_helper->fb) |
263 | bound++; |
273 | bound++; |
264 | } |
274 | } |
265 | 275 | ||
266 | if (bound < crtcs_bound) |
276 | if (bound < crtcs_bound) |
267 | return false; |
277 | return false; |
268 | 278 | ||
269 | return true; |
279 | return true; |
270 | } |
280 | } |
271 | 281 | ||
272 | #ifdef CONFIG_MAGIC_SYSRQ |
282 | #ifdef CONFIG_MAGIC_SYSRQ |
273 | static void drm_fb_helper_restore_work_fn(struct work_struct *ignored) |
283 | static void drm_fb_helper_restore_work_fn(struct work_struct *ignored) |
274 | { |
284 | { |
275 | bool ret; |
285 | bool ret; |
276 | ret = drm_fb_helper_force_kernel_mode(); |
286 | ret = drm_fb_helper_force_kernel_mode(); |
277 | if (ret == true) |
287 | if (ret == true) |
278 | DRM_ERROR("Failed to restore crtc configuration\n"); |
288 | DRM_ERROR("Failed to restore crtc configuration\n"); |
279 | } |
289 | } |
280 | static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn); |
290 | static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn); |
281 | 291 | ||
282 | static void drm_fb_helper_sysrq(int dummy1) |
292 | static void drm_fb_helper_sysrq(int dummy1) |
283 | { |
293 | { |
284 | schedule_work(&drm_fb_helper_restore_work); |
294 | schedule_work(&drm_fb_helper_restore_work); |
285 | } |
295 | } |
286 | 296 | ||
287 | static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { |
297 | static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { |
288 | .handler = drm_fb_helper_sysrq, |
298 | .handler = drm_fb_helper_sysrq, |
289 | .help_msg = "force-fb(V)", |
299 | .help_msg = "force-fb(V)", |
290 | .action_msg = "Restore framebuffer console", |
300 | .action_msg = "Restore framebuffer console", |
291 | }; |
301 | }; |
292 | #else |
302 | #else |
293 | 303 | ||
294 | #endif |
304 | #endif |
295 | 305 | ||
296 | static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode) |
306 | static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode) |
297 | { |
307 | { |
298 | struct drm_fb_helper *fb_helper = info->par; |
308 | struct drm_fb_helper *fb_helper = info->par; |
299 | struct drm_device *dev = fb_helper->dev; |
309 | struct drm_device *dev = fb_helper->dev; |
300 | struct drm_crtc *crtc; |
310 | struct drm_crtc *crtc; |
301 | struct drm_connector *connector; |
311 | struct drm_connector *connector; |
302 | int i, j; |
312 | int i, j; |
303 | 313 | ||
304 | /* |
314 | /* |
305 | * fbdev->blank can be called from irq context in case of a panic. |
315 | * fbdev->blank can be called from irq context in case of a panic. |
306 | * Since we already have our own special panic handler which will |
316 | * Since we already have our own special panic handler which will |
307 | * restore the fbdev console mode completely, just bail out early. |
317 | * restore the fbdev console mode completely, just bail out early. |
308 | */ |
318 | */ |
309 | 319 | ||
310 | /* |
320 | /* |
311 | * For each CRTC in this fb, turn the connectors on/off. |
321 | * For each CRTC in this fb, turn the connectors on/off. |
312 | */ |
322 | */ |
313 | drm_modeset_lock_all(dev); |
323 | drm_modeset_lock_all(dev); |
314 | if (!drm_fb_helper_is_bound(fb_helper)) { |
324 | if (!drm_fb_helper_is_bound(fb_helper)) { |
315 | drm_modeset_unlock_all(dev); |
325 | drm_modeset_unlock_all(dev); |
316 | return; |
326 | return; |
317 | } |
327 | } |
318 | 328 | ||
319 | for (i = 0; i < fb_helper->crtc_count; i++) { |
329 | for (i = 0; i < fb_helper->crtc_count; i++) { |
320 | crtc = fb_helper->crtc_info[i].mode_set.crtc; |
330 | crtc = fb_helper->crtc_info[i].mode_set.crtc; |
321 | 331 | ||
322 | if (!crtc->enabled) |
332 | if (!crtc->enabled) |
323 | continue; |
333 | continue; |
324 | 334 | ||
325 | /* Walk the connectors & encoders on this fb turning them on/off */ |
335 | /* Walk the connectors & encoders on this fb turning them on/off */ |
326 | for (j = 0; j < fb_helper->connector_count; j++) { |
336 | for (j = 0; j < fb_helper->connector_count; j++) { |
327 | connector = fb_helper->connector_info[j]->connector; |
337 | connector = fb_helper->connector_info[j]->connector; |
328 | connector->funcs->dpms(connector, dpms_mode); |
338 | connector->funcs->dpms(connector, dpms_mode); |
329 | drm_object_property_set_value(&connector->base, |
339 | drm_object_property_set_value(&connector->base, |
330 | dev->mode_config.dpms_property, dpms_mode); |
340 | dev->mode_config.dpms_property, dpms_mode); |
331 | } |
341 | } |
332 | } |
342 | } |
333 | drm_modeset_unlock_all(dev); |
343 | drm_modeset_unlock_all(dev); |
334 | } |
344 | } |
335 | 345 | ||
336 | /** |
346 | /** |
337 | * drm_fb_helper_blank - implementation for ->fb_blank |
347 | * drm_fb_helper_blank - implementation for ->fb_blank |
338 | * @blank: desired blanking state |
348 | * @blank: desired blanking state |
339 | * @info: fbdev registered by the helper |
349 | * @info: fbdev registered by the helper |
340 | */ |
350 | */ |
341 | int drm_fb_helper_blank(int blank, struct fb_info *info) |
351 | int drm_fb_helper_blank(int blank, struct fb_info *info) |
342 | { |
352 | { |
343 | switch (blank) { |
353 | switch (blank) { |
344 | /* Display: On; HSync: On, VSync: On */ |
354 | /* Display: On; HSync: On, VSync: On */ |
345 | case FB_BLANK_UNBLANK: |
355 | case FB_BLANK_UNBLANK: |
346 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_ON); |
356 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_ON); |
347 | break; |
357 | break; |
348 | /* Display: Off; HSync: On, VSync: On */ |
358 | /* Display: Off; HSync: On, VSync: On */ |
349 | case FB_BLANK_NORMAL: |
359 | case FB_BLANK_NORMAL: |
350 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY); |
360 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY); |
351 | break; |
361 | break; |
352 | /* Display: Off; HSync: Off, VSync: On */ |
362 | /* Display: Off; HSync: Off, VSync: On */ |
353 | case FB_BLANK_HSYNC_SUSPEND: |
363 | case FB_BLANK_HSYNC_SUSPEND: |
354 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY); |
364 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY); |
355 | break; |
365 | break; |
356 | /* Display: Off; HSync: On, VSync: Off */ |
366 | /* Display: Off; HSync: On, VSync: Off */ |
357 | case FB_BLANK_VSYNC_SUSPEND: |
367 | case FB_BLANK_VSYNC_SUSPEND: |
358 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_SUSPEND); |
368 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_SUSPEND); |
359 | break; |
369 | break; |
360 | /* Display: Off; HSync: Off, VSync: Off */ |
370 | /* Display: Off; HSync: Off, VSync: Off */ |
361 | case FB_BLANK_POWERDOWN: |
371 | case FB_BLANK_POWERDOWN: |
362 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_OFF); |
372 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_OFF); |
363 | break; |
373 | break; |
364 | } |
374 | } |
365 | return 0; |
375 | return 0; |
366 | } |
376 | } |
367 | EXPORT_SYMBOL(drm_fb_helper_blank); |
377 | EXPORT_SYMBOL(drm_fb_helper_blank); |
368 | 378 | ||
369 | static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper) |
379 | static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper) |
370 | { |
380 | { |
371 | int i; |
381 | int i; |
372 | 382 | ||
373 | for (i = 0; i < helper->connector_count; i++) |
383 | for (i = 0; i < helper->connector_count; i++) |
374 | kfree(helper->connector_info[i]); |
384 | kfree(helper->connector_info[i]); |
375 | kfree(helper->connector_info); |
385 | kfree(helper->connector_info); |
376 | for (i = 0; i < helper->crtc_count; i++) { |
386 | for (i = 0; i < helper->crtc_count; i++) { |
377 | kfree(helper->crtc_info[i].mode_set.connectors); |
387 | kfree(helper->crtc_info[i].mode_set.connectors); |
378 | if (helper->crtc_info[i].mode_set.mode) |
388 | if (helper->crtc_info[i].mode_set.mode) |
379 | drm_mode_destroy(helper->dev, helper->crtc_info[i].mode_set.mode); |
389 | drm_mode_destroy(helper->dev, helper->crtc_info[i].mode_set.mode); |
380 | } |
390 | } |
381 | kfree(helper->crtc_info); |
391 | kfree(helper->crtc_info); |
382 | } |
392 | } |
383 | 393 | ||
384 | /** |
394 | /** |
385 | * drm_fb_helper_prepare - setup a drm_fb_helper structure |
395 | * drm_fb_helper_prepare - setup a drm_fb_helper structure |
386 | * @dev: DRM device |
396 | * @dev: DRM device |
387 | * @helper: driver-allocated fbdev helper structure to set up |
397 | * @helper: driver-allocated fbdev helper structure to set up |
388 | * @funcs: pointer to structure of functions associate with this helper |
398 | * @funcs: pointer to structure of functions associate with this helper |
389 | * |
399 | * |
390 | * Sets up the bare minimum to make the framebuffer helper usable. This is |
400 | * Sets up the bare minimum to make the framebuffer helper usable. This is |
391 | * useful to implement race-free initialization of the polling helpers. |
401 | * useful to implement race-free initialization of the polling helpers. |
392 | */ |
402 | */ |
393 | void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, |
403 | void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper, |
394 | const struct drm_fb_helper_funcs *funcs) |
404 | const struct drm_fb_helper_funcs *funcs) |
395 | { |
405 | { |
396 | INIT_LIST_HEAD(&helper->kernel_fb_list); |
406 | INIT_LIST_HEAD(&helper->kernel_fb_list); |
397 | helper->funcs = funcs; |
407 | helper->funcs = funcs; |
398 | helper->dev = dev; |
408 | helper->dev = dev; |
399 | } |
409 | } |
400 | EXPORT_SYMBOL(drm_fb_helper_prepare); |
410 | EXPORT_SYMBOL(drm_fb_helper_prepare); |
401 | 411 | ||
402 | /** |
412 | /** |
403 | * drm_fb_helper_init - initialize a drm_fb_helper structure |
413 | * drm_fb_helper_init - initialize a drm_fb_helper structure |
404 | * @dev: drm device |
414 | * @dev: drm device |
405 | * @fb_helper: driver-allocated fbdev helper structure to initialize |
415 | * @fb_helper: driver-allocated fbdev helper structure to initialize |
406 | * @crtc_count: maximum number of crtcs to support in this fbdev emulation |
416 | * @crtc_count: maximum number of crtcs to support in this fbdev emulation |
407 | * @max_conn_count: max connector count |
417 | * @max_conn_count: max connector count |
408 | * |
418 | * |
409 | * This allocates the structures for the fbdev helper with the given limits. |
419 | * This allocates the structures for the fbdev helper with the given limits. |
410 | * Note that this won't yet touch the hardware (through the driver interfaces) |
420 | * Note that this won't yet touch the hardware (through the driver interfaces) |
411 | * nor register the fbdev. This is only done in drm_fb_helper_initial_config() |
421 | * nor register the fbdev. This is only done in drm_fb_helper_initial_config() |
412 | * to allow driver writes more control over the exact init sequence. |
422 | * to allow driver writes more control over the exact init sequence. |
413 | * |
423 | * |
414 | * Drivers must call drm_fb_helper_prepare() before calling this function. |
424 | * Drivers must call drm_fb_helper_prepare() before calling this function. |
415 | * |
425 | * |
416 | * RETURNS: |
426 | * RETURNS: |
417 | * Zero if everything went ok, nonzero otherwise. |
427 | * Zero if everything went ok, nonzero otherwise. |
418 | */ |
428 | */ |
419 | int drm_fb_helper_init(struct drm_device *dev, |
429 | int drm_fb_helper_init(struct drm_device *dev, |
420 | struct drm_fb_helper *fb_helper, |
430 | struct drm_fb_helper *fb_helper, |
421 | int crtc_count, int max_conn_count) |
431 | int crtc_count, int max_conn_count) |
422 | { |
432 | { |
423 | struct drm_crtc *crtc; |
433 | struct drm_crtc *crtc; |
424 | int i; |
434 | int i; |
425 | 435 | ||
426 | if (!max_conn_count) |
436 | if (!max_conn_count) |
427 | return -EINVAL; |
437 | return -EINVAL; |
428 | 438 | ||
429 | fb_helper->crtc_info = kcalloc(crtc_count, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL); |
439 | fb_helper->crtc_info = kcalloc(crtc_count, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL); |
430 | if (!fb_helper->crtc_info) |
440 | if (!fb_helper->crtc_info) |
431 | return -ENOMEM; |
441 | return -ENOMEM; |
432 | 442 | ||
433 | fb_helper->crtc_count = crtc_count; |
443 | fb_helper->crtc_count = crtc_count; |
434 | fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL); |
444 | fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL); |
435 | if (!fb_helper->connector_info) { |
445 | if (!fb_helper->connector_info) { |
436 | kfree(fb_helper->crtc_info); |
446 | kfree(fb_helper->crtc_info); |
437 | return -ENOMEM; |
447 | return -ENOMEM; |
438 | } |
448 | } |
439 | fb_helper->connector_info_alloc_count = dev->mode_config.num_connector; |
449 | fb_helper->connector_info_alloc_count = dev->mode_config.num_connector; |
440 | fb_helper->connector_count = 0; |
450 | fb_helper->connector_count = 0; |
441 | 451 | ||
442 | for (i = 0; i < crtc_count; i++) { |
452 | for (i = 0; i < crtc_count; i++) { |
443 | fb_helper->crtc_info[i].mode_set.connectors = |
453 | fb_helper->crtc_info[i].mode_set.connectors = |
444 | kcalloc(max_conn_count, |
454 | kcalloc(max_conn_count, |
445 | sizeof(struct drm_connector *), |
455 | sizeof(struct drm_connector *), |
446 | GFP_KERNEL); |
456 | GFP_KERNEL); |
447 | 457 | ||
448 | if (!fb_helper->crtc_info[i].mode_set.connectors) |
458 | if (!fb_helper->crtc_info[i].mode_set.connectors) |
449 | goto out_free; |
459 | goto out_free; |
450 | fb_helper->crtc_info[i].mode_set.num_connectors = 0; |
460 | fb_helper->crtc_info[i].mode_set.num_connectors = 0; |
451 | } |
461 | } |
452 | 462 | ||
453 | i = 0; |
463 | i = 0; |
454 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
464 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
455 | fb_helper->crtc_info[i].mode_set.crtc = crtc; |
465 | fb_helper->crtc_info[i].mode_set.crtc = crtc; |
456 | i++; |
466 | i++; |
457 | } |
467 | } |
458 | 468 | ||
459 | return 0; |
469 | return 0; |
460 | out_free: |
470 | out_free: |
461 | drm_fb_helper_crtc_free(fb_helper); |
471 | drm_fb_helper_crtc_free(fb_helper); |
462 | return -ENOMEM; |
472 | return -ENOMEM; |
463 | } |
473 | } |
464 | EXPORT_SYMBOL(drm_fb_helper_init); |
474 | EXPORT_SYMBOL(drm_fb_helper_init); |
465 | 475 | ||
466 | static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green, |
476 | static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green, |
467 | u16 blue, u16 regno, struct fb_info *info) |
477 | u16 blue, u16 regno, struct fb_info *info) |
468 | { |
478 | { |
469 | struct drm_fb_helper *fb_helper = info->par; |
479 | struct drm_fb_helper *fb_helper = info->par; |
470 | struct drm_framebuffer *fb = fb_helper->fb; |
480 | struct drm_framebuffer *fb = fb_helper->fb; |
471 | int pindex; |
481 | int pindex; |
472 | 482 | ||
473 | if (info->fix.visual == FB_VISUAL_TRUECOLOR) { |
483 | if (info->fix.visual == FB_VISUAL_TRUECOLOR) { |
474 | u32 *palette; |
484 | u32 *palette; |
475 | u32 value; |
485 | u32 value; |
476 | /* place color in psuedopalette */ |
486 | /* place color in psuedopalette */ |
477 | if (regno > 16) |
487 | if (regno > 16) |
478 | return -EINVAL; |
488 | return -EINVAL; |
479 | palette = (u32 *)info->pseudo_palette; |
489 | palette = (u32 *)info->pseudo_palette; |
480 | red >>= (16 - info->var.red.length); |
490 | red >>= (16 - info->var.red.length); |
481 | green >>= (16 - info->var.green.length); |
491 | green >>= (16 - info->var.green.length); |
482 | blue >>= (16 - info->var.blue.length); |
492 | blue >>= (16 - info->var.blue.length); |
483 | value = (red << info->var.red.offset) | |
493 | value = (red << info->var.red.offset) | |
484 | (green << info->var.green.offset) | |
494 | (green << info->var.green.offset) | |
485 | (blue << info->var.blue.offset); |
495 | (blue << info->var.blue.offset); |
486 | if (info->var.transp.length > 0) { |
496 | if (info->var.transp.length > 0) { |
487 | u32 mask = (1 << info->var.transp.length) - 1; |
497 | u32 mask = (1 << info->var.transp.length) - 1; |
488 | mask <<= info->var.transp.offset; |
498 | mask <<= info->var.transp.offset; |
489 | value |= mask; |
499 | value |= mask; |
490 | } |
500 | } |
491 | palette[regno] = value; |
501 | palette[regno] = value; |
492 | return 0; |
502 | return 0; |
493 | } |
503 | } |
494 | 504 | ||
495 | /* |
505 | /* |
496 | * The driver really shouldn't advertise pseudo/directcolor |
506 | * The driver really shouldn't advertise pseudo/directcolor |
497 | * visuals if it can't deal with the palette. |
507 | * visuals if it can't deal with the palette. |
498 | */ |
508 | */ |
499 | if (WARN_ON(!fb_helper->funcs->gamma_set || |
509 | if (WARN_ON(!fb_helper->funcs->gamma_set || |
500 | !fb_helper->funcs->gamma_get)) |
510 | !fb_helper->funcs->gamma_get)) |
501 | return -EINVAL; |
511 | return -EINVAL; |
502 | 512 | ||
503 | pindex = regno; |
513 | pindex = regno; |
504 | 514 | ||
505 | if (fb->bits_per_pixel == 16) { |
515 | if (fb->bits_per_pixel == 16) { |
506 | pindex = regno << 3; |
516 | pindex = regno << 3; |
507 | 517 | ||
508 | if (fb->depth == 16 && regno > 63) |
518 | if (fb->depth == 16 && regno > 63) |
509 | return -EINVAL; |
519 | return -EINVAL; |
510 | if (fb->depth == 15 && regno > 31) |
520 | if (fb->depth == 15 && regno > 31) |
511 | return -EINVAL; |
521 | return -EINVAL; |
512 | 522 | ||
513 | if (fb->depth == 16) { |
523 | if (fb->depth == 16) { |
514 | u16 r, g, b; |
524 | u16 r, g, b; |
515 | int i; |
525 | int i; |
516 | if (regno < 32) { |
526 | if (regno < 32) { |
517 | for (i = 0; i < 8; i++) |
527 | for (i = 0; i < 8; i++) |
518 | fb_helper->funcs->gamma_set(crtc, red, |
528 | fb_helper->funcs->gamma_set(crtc, red, |
519 | green, blue, pindex + i); |
529 | green, blue, pindex + i); |
520 | } |
530 | } |
521 | 531 | ||
522 | fb_helper->funcs->gamma_get(crtc, &r, |
532 | fb_helper->funcs->gamma_get(crtc, &r, |
523 | &g, &b, |
533 | &g, &b, |
524 | pindex >> 1); |
534 | pindex >> 1); |
525 | 535 | ||
526 | for (i = 0; i < 4; i++) |
536 | for (i = 0; i < 4; i++) |
527 | fb_helper->funcs->gamma_set(crtc, r, |
537 | fb_helper->funcs->gamma_set(crtc, r, |
528 | green, b, |
538 | green, b, |
529 | (pindex >> 1) + i); |
539 | (pindex >> 1) + i); |
530 | } |
540 | } |
531 | } |
541 | } |
532 | 542 | ||
533 | if (fb->depth != 16) |
543 | if (fb->depth != 16) |
534 | fb_helper->funcs->gamma_set(crtc, red, green, blue, pindex); |
544 | fb_helper->funcs->gamma_set(crtc, red, green, blue, pindex); |
535 | return 0; |
545 | return 0; |
536 | } |
546 | } |
537 | 547 | ||
538 | /** |
548 | /** |
539 | * drm_fb_helper_setcmap - implementation for ->fb_setcmap |
549 | * drm_fb_helper_setcmap - implementation for ->fb_setcmap |
540 | * @cmap: cmap to set |
550 | * @cmap: cmap to set |
541 | * @info: fbdev registered by the helper |
551 | * @info: fbdev registered by the helper |
542 | */ |
552 | */ |
543 | int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info) |
553 | int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info) |
544 | { |
554 | { |
545 | struct drm_fb_helper *fb_helper = info->par; |
555 | struct drm_fb_helper *fb_helper = info->par; |
546 | struct drm_device *dev = fb_helper->dev; |
556 | struct drm_device *dev = fb_helper->dev; |
547 | struct drm_crtc_helper_funcs *crtc_funcs; |
557 | struct drm_crtc_helper_funcs *crtc_funcs; |
548 | u16 *red, *green, *blue, *transp; |
558 | u16 *red, *green, *blue, *transp; |
549 | struct drm_crtc *crtc; |
559 | struct drm_crtc *crtc; |
550 | int i, j, rc = 0; |
560 | int i, j, rc = 0; |
551 | int start; |
561 | int start; |
552 | 562 | ||
553 | drm_modeset_lock_all(dev); |
563 | drm_modeset_lock_all(dev); |
554 | if (!drm_fb_helper_is_bound(fb_helper)) { |
564 | if (!drm_fb_helper_is_bound(fb_helper)) { |
555 | drm_modeset_unlock_all(dev); |
565 | drm_modeset_unlock_all(dev); |
556 | return -EBUSY; |
566 | return -EBUSY; |
557 | } |
567 | } |
558 | 568 | ||
559 | for (i = 0; i < fb_helper->crtc_count; i++) { |
569 | for (i = 0; i < fb_helper->crtc_count; i++) { |
560 | crtc = fb_helper->crtc_info[i].mode_set.crtc; |
570 | crtc = fb_helper->crtc_info[i].mode_set.crtc; |
561 | crtc_funcs = crtc->helper_private; |
571 | crtc_funcs = crtc->helper_private; |
562 | 572 | ||
563 | red = cmap->red; |
573 | red = cmap->red; |
564 | green = cmap->green; |
574 | green = cmap->green; |
565 | blue = cmap->blue; |
575 | blue = cmap->blue; |
566 | transp = cmap->transp; |
576 | transp = cmap->transp; |
567 | start = cmap->start; |
577 | start = cmap->start; |
568 | 578 | ||
569 | for (j = 0; j < cmap->len; j++) { |
579 | for (j = 0; j < cmap->len; j++) { |
570 | u16 hred, hgreen, hblue, htransp = 0xffff; |
580 | u16 hred, hgreen, hblue, htransp = 0xffff; |
571 | 581 | ||
572 | hred = *red++; |
582 | hred = *red++; |
573 | hgreen = *green++; |
583 | hgreen = *green++; |
574 | hblue = *blue++; |
584 | hblue = *blue++; |
575 | 585 | ||
576 | if (transp) |
586 | if (transp) |
577 | htransp = *transp++; |
587 | htransp = *transp++; |
578 | 588 | ||
579 | rc = setcolreg(crtc, hred, hgreen, hblue, start++, info); |
589 | rc = setcolreg(crtc, hred, hgreen, hblue, start++, info); |
580 | if (rc) |
590 | if (rc) |
581 | goto out; |
591 | goto out; |
582 | } |
592 | } |
583 | if (crtc_funcs->load_lut) |
593 | if (crtc_funcs->load_lut) |
584 | crtc_funcs->load_lut(crtc); |
594 | crtc_funcs->load_lut(crtc); |
585 | } |
595 | } |
586 | out: |
596 | out: |
587 | drm_modeset_unlock_all(dev); |
597 | drm_modeset_unlock_all(dev); |
588 | return rc; |
598 | return rc; |
589 | } |
599 | } |
590 | EXPORT_SYMBOL(drm_fb_helper_setcmap); |
600 | EXPORT_SYMBOL(drm_fb_helper_setcmap); |
591 | 601 | ||
592 | /** |
602 | /** |
593 | * drm_fb_helper_check_var - implementation for ->fb_check_var |
603 | * drm_fb_helper_check_var - implementation for ->fb_check_var |
594 | * @var: screeninfo to check |
604 | * @var: screeninfo to check |
595 | * @info: fbdev registered by the helper |
605 | * @info: fbdev registered by the helper |
596 | */ |
606 | */ |
597 | int drm_fb_helper_check_var(struct fb_var_screeninfo *var, |
607 | int drm_fb_helper_check_var(struct fb_var_screeninfo *var, |
598 | struct fb_info *info) |
608 | struct fb_info *info) |
599 | { |
609 | { |
600 | struct drm_fb_helper *fb_helper = info->par; |
610 | struct drm_fb_helper *fb_helper = info->par; |
601 | struct drm_framebuffer *fb = fb_helper->fb; |
611 | struct drm_framebuffer *fb = fb_helper->fb; |
602 | int depth; |
612 | int depth; |
603 | 613 | ||
604 | if (var->pixclock != 0 || in_dbg_master()) |
614 | if (var->pixclock != 0 || in_dbg_master()) |
605 | return -EINVAL; |
615 | return -EINVAL; |
606 | 616 | ||
607 | /* Need to resize the fb object !!! */ |
617 | /* Need to resize the fb object !!! */ |
608 | if (var->bits_per_pixel > fb->bits_per_pixel || |
618 | if (var->bits_per_pixel > fb->bits_per_pixel || |
609 | var->xres > fb->width || var->yres > fb->height || |
619 | var->xres > fb->width || var->yres > fb->height || |
610 | var->xres_virtual > fb->width || var->yres_virtual > fb->height) { |
620 | var->xres_virtual > fb->width || var->yres_virtual > fb->height) { |
611 | DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb " |
621 | DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb " |
612 | "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n", |
622 | "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n", |
613 | var->xres, var->yres, var->bits_per_pixel, |
623 | var->xres, var->yres, var->bits_per_pixel, |
614 | var->xres_virtual, var->yres_virtual, |
624 | var->xres_virtual, var->yres_virtual, |
615 | fb->width, fb->height, fb->bits_per_pixel); |
625 | fb->width, fb->height, fb->bits_per_pixel); |
616 | return -EINVAL; |
626 | return -EINVAL; |
617 | } |
627 | } |
618 | 628 | ||
619 | switch (var->bits_per_pixel) { |
629 | switch (var->bits_per_pixel) { |
620 | case 16: |
630 | case 16: |
621 | depth = (var->green.length == 6) ? 16 : 15; |
631 | depth = (var->green.length == 6) ? 16 : 15; |
622 | break; |
632 | break; |
623 | case 32: |
633 | case 32: |
624 | depth = (var->transp.length > 0) ? 32 : 24; |
634 | depth = (var->transp.length > 0) ? 32 : 24; |
625 | break; |
635 | break; |
626 | default: |
636 | default: |
627 | depth = var->bits_per_pixel; |
637 | depth = var->bits_per_pixel; |
628 | break; |
638 | break; |
629 | } |
639 | } |
630 | 640 | ||
631 | switch (depth) { |
641 | switch (depth) { |
632 | case 8: |
642 | case 8: |
633 | var->red.offset = 0; |
643 | var->red.offset = 0; |
634 | var->green.offset = 0; |
644 | var->green.offset = 0; |
635 | var->blue.offset = 0; |
645 | var->blue.offset = 0; |
636 | var->red.length = 8; |
646 | var->red.length = 8; |
637 | var->green.length = 8; |
647 | var->green.length = 8; |
638 | var->blue.length = 8; |
648 | var->blue.length = 8; |
639 | var->transp.length = 0; |
649 | var->transp.length = 0; |
640 | var->transp.offset = 0; |
650 | var->transp.offset = 0; |
641 | break; |
651 | break; |
642 | case 15: |
652 | case 15: |
643 | var->red.offset = 10; |
653 | var->red.offset = 10; |
644 | var->green.offset = 5; |
654 | var->green.offset = 5; |
645 | var->blue.offset = 0; |
655 | var->blue.offset = 0; |
646 | var->red.length = 5; |
656 | var->red.length = 5; |
647 | var->green.length = 5; |
657 | var->green.length = 5; |
648 | var->blue.length = 5; |
658 | var->blue.length = 5; |
649 | var->transp.length = 1; |
659 | var->transp.length = 1; |
650 | var->transp.offset = 15; |
660 | var->transp.offset = 15; |
651 | break; |
661 | break; |
652 | case 16: |
662 | case 16: |
653 | var->red.offset = 11; |
663 | var->red.offset = 11; |
654 | var->green.offset = 5; |
664 | var->green.offset = 5; |
655 | var->blue.offset = 0; |
665 | var->blue.offset = 0; |
656 | var->red.length = 5; |
666 | var->red.length = 5; |
657 | var->green.length = 6; |
667 | var->green.length = 6; |
658 | var->blue.length = 5; |
668 | var->blue.length = 5; |
659 | var->transp.length = 0; |
669 | var->transp.length = 0; |
660 | var->transp.offset = 0; |
670 | var->transp.offset = 0; |
661 | break; |
671 | break; |
662 | case 24: |
672 | case 24: |
663 | var->red.offset = 16; |
673 | var->red.offset = 16; |
664 | var->green.offset = 8; |
674 | var->green.offset = 8; |
665 | var->blue.offset = 0; |
675 | var->blue.offset = 0; |
666 | var->red.length = 8; |
676 | var->red.length = 8; |
667 | var->green.length = 8; |
677 | var->green.length = 8; |
668 | var->blue.length = 8; |
678 | var->blue.length = 8; |
669 | var->transp.length = 0; |
679 | var->transp.length = 0; |
670 | var->transp.offset = 0; |
680 | var->transp.offset = 0; |
671 | break; |
681 | break; |
672 | case 32: |
682 | case 32: |
673 | var->red.offset = 16; |
683 | var->red.offset = 16; |
674 | var->green.offset = 8; |
684 | var->green.offset = 8; |
675 | var->blue.offset = 0; |
685 | var->blue.offset = 0; |
676 | var->red.length = 8; |
686 | var->red.length = 8; |
677 | var->green.length = 8; |
687 | var->green.length = 8; |
678 | var->blue.length = 8; |
688 | var->blue.length = 8; |
679 | var->transp.length = 8; |
689 | var->transp.length = 8; |
680 | var->transp.offset = 24; |
690 | var->transp.offset = 24; |
681 | break; |
691 | break; |
682 | default: |
692 | default: |
683 | return -EINVAL; |
693 | return -EINVAL; |
684 | } |
694 | } |
685 | return 0; |
695 | return 0; |
686 | } |
696 | } |
687 | EXPORT_SYMBOL(drm_fb_helper_check_var); |
697 | EXPORT_SYMBOL(drm_fb_helper_check_var); |
688 | 698 | ||
689 | /** |
699 | /** |
690 | * drm_fb_helper_set_par - implementation for ->fb_set_par |
700 | * drm_fb_helper_set_par - implementation for ->fb_set_par |
691 | * @info: fbdev registered by the helper |
701 | * @info: fbdev registered by the helper |
692 | * |
702 | * |
693 | * This will let fbcon do the mode init and is called at initialization time by |
703 | * This will let fbcon do the mode init and is called at initialization time by |
694 | * the fbdev core when registering the driver, and later on through the hotplug |
704 | * the fbdev core when registering the driver, and later on through the hotplug |
695 | * callback. |
705 | * callback. |
696 | */ |
706 | */ |
697 | int drm_fb_helper_set_par(struct fb_info *info) |
707 | int drm_fb_helper_set_par(struct fb_info *info) |
698 | { |
708 | { |
699 | struct drm_fb_helper *fb_helper = info->par; |
709 | struct drm_fb_helper *fb_helper = info->par; |
700 | struct fb_var_screeninfo *var = &info->var; |
710 | struct fb_var_screeninfo *var = &info->var; |
701 | 711 | ||
702 | if (var->pixclock != 0) { |
712 | if (var->pixclock != 0) { |
703 | DRM_ERROR("PIXEL CLOCK SET\n"); |
713 | DRM_ERROR("PIXEL CLOCK SET\n"); |
704 | return -EINVAL; |
714 | return -EINVAL; |
705 | } |
715 | } |
706 | 716 | ||
707 | drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper); |
717 | drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper); |
708 | - | ||
709 | if (fb_helper->delayed_hotplug) { |
- | |
710 | fb_helper->delayed_hotplug = false; |
- | |
711 | drm_fb_helper_hotplug_event(fb_helper); |
- | |
712 | } |
718 | |
713 | return 0; |
719 | return 0; |
714 | } |
720 | } |
715 | EXPORT_SYMBOL(drm_fb_helper_set_par); |
721 | EXPORT_SYMBOL(drm_fb_helper_set_par); |
716 | 722 | ||
717 | /** |
723 | /** |
718 | * drm_fb_helper_pan_display - implementation for ->fb_pan_display |
724 | * drm_fb_helper_pan_display - implementation for ->fb_pan_display |
719 | * @var: updated screen information |
725 | * @var: updated screen information |
720 | * @info: fbdev registered by the helper |
726 | * @info: fbdev registered by the helper |
721 | */ |
727 | */ |
722 | int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, |
728 | int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, |
723 | struct fb_info *info) |
729 | struct fb_info *info) |
724 | { |
730 | { |
725 | struct drm_fb_helper *fb_helper = info->par; |
731 | struct drm_fb_helper *fb_helper = info->par; |
726 | struct drm_device *dev = fb_helper->dev; |
732 | struct drm_device *dev = fb_helper->dev; |
727 | struct drm_mode_set *modeset; |
733 | struct drm_mode_set *modeset; |
728 | int ret = 0; |
734 | int ret = 0; |
729 | int i; |
735 | int i; |
730 | 736 | ||
731 | drm_modeset_lock_all(dev); |
737 | drm_modeset_lock_all(dev); |
732 | if (!drm_fb_helper_is_bound(fb_helper)) { |
738 | if (!drm_fb_helper_is_bound(fb_helper)) { |
733 | drm_modeset_unlock_all(dev); |
739 | drm_modeset_unlock_all(dev); |
734 | return -EBUSY; |
740 | return -EBUSY; |
735 | } |
741 | } |
736 | 742 | ||
737 | for (i = 0; i < fb_helper->crtc_count; i++) { |
743 | for (i = 0; i < fb_helper->crtc_count; i++) { |
738 | modeset = &fb_helper->crtc_info[i].mode_set; |
744 | modeset = &fb_helper->crtc_info[i].mode_set; |
739 | 745 | ||
740 | modeset->x = var->xoffset; |
746 | modeset->x = var->xoffset; |
741 | modeset->y = var->yoffset; |
747 | modeset->y = var->yoffset; |
742 | 748 | ||
743 | if (modeset->num_connectors) { |
749 | if (modeset->num_connectors) { |
744 | ret = drm_mode_set_config_internal(modeset); |
750 | ret = drm_mode_set_config_internal(modeset); |
745 | if (!ret) { |
751 | if (!ret) { |
746 | info->var.xoffset = var->xoffset; |
752 | info->var.xoffset = var->xoffset; |
747 | info->var.yoffset = var->yoffset; |
753 | info->var.yoffset = var->yoffset; |
748 | } |
754 | } |
749 | } |
755 | } |
750 | } |
756 | } |
751 | drm_modeset_unlock_all(dev); |
757 | drm_modeset_unlock_all(dev); |
752 | return ret; |
758 | return ret; |
753 | } |
759 | } |
754 | EXPORT_SYMBOL(drm_fb_helper_pan_display); |
760 | EXPORT_SYMBOL(drm_fb_helper_pan_display); |
755 | 761 | ||
756 | /* |
762 | /* |
757 | * Allocates the backing storage and sets up the fbdev info structure through |
763 | * Allocates the backing storage and sets up the fbdev info structure through |
758 | * the ->fb_probe callback and then registers the fbdev and sets up the panic |
764 | * the ->fb_probe callback and then registers the fbdev and sets up the panic |
759 | * notifier. |
765 | * notifier. |
760 | */ |
766 | */ |
761 | static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, |
767 | static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, |
762 | int preferred_bpp) |
768 | int preferred_bpp) |
763 | { |
769 | { |
764 | int ret = 0; |
770 | int ret = 0; |
765 | int crtc_count = 0; |
771 | int crtc_count = 0; |
766 | int i; |
772 | int i; |
767 | struct fb_info *info; |
773 | struct fb_info *info; |
768 | struct drm_fb_helper_surface_size sizes; |
774 | struct drm_fb_helper_surface_size sizes; |
769 | int gamma_size = 0; |
775 | int gamma_size = 0; |
770 | 776 | ||
771 | memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size)); |
777 | memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size)); |
772 | sizes.surface_depth = 24; |
778 | sizes.surface_depth = 24; |
773 | sizes.surface_bpp = 32; |
779 | sizes.surface_bpp = 32; |
774 | sizes.fb_width = (unsigned)-1; |
780 | sizes.fb_width = (unsigned)-1; |
775 | sizes.fb_height = (unsigned)-1; |
781 | sizes.fb_height = (unsigned)-1; |
776 | 782 | ||
777 | /* if driver picks 8 or 16 by default use that |
783 | /* if driver picks 8 or 16 by default use that |
778 | for both depth/bpp */ |
784 | for both depth/bpp */ |
779 | if (preferred_bpp != sizes.surface_bpp) |
785 | if (preferred_bpp != sizes.surface_bpp) |
780 | sizes.surface_depth = sizes.surface_bpp = preferred_bpp; |
786 | sizes.surface_depth = sizes.surface_bpp = preferred_bpp; |
781 | 787 | ||
782 | /* first up get a count of crtcs now in use and new min/maxes width/heights */ |
788 | /* first up get a count of crtcs now in use and new min/maxes width/heights */ |
783 | for (i = 0; i < fb_helper->connector_count; i++) { |
789 | for (i = 0; i < fb_helper->connector_count; i++) { |
784 | struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i]; |
790 | struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i]; |
785 | struct drm_cmdline_mode *cmdline_mode; |
791 | struct drm_cmdline_mode *cmdline_mode; |
786 | 792 | ||
787 | cmdline_mode = &fb_helper_conn->cmdline_mode; |
793 | cmdline_mode = &fb_helper_conn->connector->cmdline_mode; |
788 | 794 | ||
789 | if (cmdline_mode->bpp_specified) { |
795 | if (cmdline_mode->bpp_specified) { |
790 | switch (cmdline_mode->bpp) { |
796 | switch (cmdline_mode->bpp) { |
791 | case 8: |
797 | case 8: |
792 | sizes.surface_depth = sizes.surface_bpp = 8; |
798 | sizes.surface_depth = sizes.surface_bpp = 8; |
793 | break; |
799 | break; |
794 | case 15: |
800 | case 15: |
795 | sizes.surface_depth = 15; |
801 | sizes.surface_depth = 15; |
796 | sizes.surface_bpp = 16; |
802 | sizes.surface_bpp = 16; |
797 | break; |
803 | break; |
798 | case 16: |
804 | case 16: |
799 | sizes.surface_depth = sizes.surface_bpp = 16; |
805 | sizes.surface_depth = sizes.surface_bpp = 16; |
800 | break; |
806 | break; |
801 | case 24: |
807 | case 24: |
802 | sizes.surface_depth = sizes.surface_bpp = 24; |
808 | sizes.surface_depth = sizes.surface_bpp = 24; |
803 | break; |
809 | break; |
804 | case 32: |
810 | case 32: |
805 | sizes.surface_depth = 24; |
811 | sizes.surface_depth = 24; |
806 | sizes.surface_bpp = 32; |
812 | sizes.surface_bpp = 32; |
807 | break; |
813 | break; |
808 | } |
814 | } |
809 | break; |
815 | break; |
810 | } |
816 | } |
811 | } |
817 | } |
812 | 818 | ||
813 | crtc_count = 0; |
819 | crtc_count = 0; |
814 | for (i = 0; i < fb_helper->crtc_count; i++) { |
820 | for (i = 0; i < fb_helper->crtc_count; i++) { |
815 | struct drm_display_mode *desired_mode; |
821 | struct drm_display_mode *desired_mode; |
- | 822 | int x, y; |
|
816 | desired_mode = fb_helper->crtc_info[i].desired_mode; |
823 | desired_mode = fb_helper->crtc_info[i].desired_mode; |
817 | - | ||
- | 824 | x = fb_helper->crtc_info[i].x; |
|
- | 825 | y = fb_helper->crtc_info[i].y; |
|
818 | if (desired_mode) { |
826 | if (desired_mode) { |
819 | if (gamma_size == 0) |
827 | if (gamma_size == 0) |
820 | gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size; |
828 | gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size; |
821 | if (desired_mode->hdisplay < sizes.fb_width) |
829 | if (desired_mode->hdisplay + x < sizes.fb_width) |
822 | sizes.fb_width = desired_mode->hdisplay; |
830 | sizes.fb_width = desired_mode->hdisplay + x; |
823 | if (desired_mode->vdisplay < sizes.fb_height) |
831 | if (desired_mode->vdisplay + y < sizes.fb_height) |
824 | sizes.fb_height = desired_mode->vdisplay; |
832 | sizes.fb_height = desired_mode->vdisplay + y; |
825 | if (desired_mode->hdisplay > sizes.surface_width) |
833 | if (desired_mode->hdisplay + x > sizes.surface_width) |
826 | sizes.surface_width = desired_mode->hdisplay; |
834 | sizes.surface_width = desired_mode->hdisplay + x; |
827 | if (desired_mode->vdisplay > sizes.surface_height) |
835 | if (desired_mode->vdisplay + y > sizes.surface_height) |
828 | sizes.surface_height = desired_mode->vdisplay; |
836 | sizes.surface_height = desired_mode->vdisplay + y; |
829 | crtc_count++; |
837 | crtc_count++; |
830 | } |
838 | } |
831 | } |
839 | } |
832 | 840 | ||
833 | if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) { |
841 | if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) { |
834 | /* hmm everyone went away - assume VGA cable just fell out |
842 | /* hmm everyone went away - assume VGA cable just fell out |
835 | and will come back later. */ |
843 | and will come back later. */ |
836 | DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n"); |
844 | DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n"); |
837 | sizes.fb_width = sizes.surface_width = 1024; |
845 | sizes.fb_width = sizes.surface_width = 1024; |
838 | sizes.fb_height = sizes.surface_height = 768; |
846 | sizes.fb_height = sizes.surface_height = 768; |
839 | } |
847 | } |
840 | 848 | ||
841 | /* push down into drivers */ |
849 | /* push down into drivers */ |
842 | ret = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes); |
850 | ret = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes); |
843 | if (ret < 0) |
851 | if (ret < 0) |
844 | return ret; |
852 | return ret; |
845 | 853 | ||
846 | info = fb_helper->fbdev; |
854 | info = fb_helper->fbdev; |
847 | 855 | ||
848 | /* |
856 | /* |
849 | * Set the fb pointer - usually drm_setup_crtcs does this for hotplug |
857 | * Set the fb pointer - usually drm_setup_crtcs does this for hotplug |
850 | * events, but at init time drm_setup_crtcs needs to be called before |
858 | * events, but at init time drm_setup_crtcs needs to be called before |
851 | * the fb is allocated (since we need to figure out the desired size of |
859 | * the fb is allocated (since we need to figure out the desired size of |
852 | * the fb before we can allocate it ...). Hence we need to fix things up |
860 | * the fb before we can allocate it ...). Hence we need to fix things up |
853 | * here again. |
861 | * here again. |
854 | */ |
862 | */ |
855 | for (i = 0; i < fb_helper->crtc_count; i++) |
863 | for (i = 0; i < fb_helper->crtc_count; i++) |
856 | if (fb_helper->crtc_info[i].mode_set.num_connectors) |
864 | if (fb_helper->crtc_info[i].mode_set.num_connectors) |
857 | fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb; |
865 | fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb; |
858 | 866 | ||
859 | 867 | ||
860 | info->var.pixclock = 0; |
868 | info->var.pixclock = 0; |
- | 869 | dev_info(fb_helper->dev->dev, "fb%d: %s frame buffer device\n", |
|
- | 870 | info->node, info->fix.id); |
|
861 | 871 | ||
862 | list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list); |
872 | list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list); |
863 | 873 | ||
864 | return 0; |
874 | return 0; |
865 | } |
875 | } |
866 | 876 | ||
867 | /** |
877 | /** |
868 | * drm_fb_helper_fill_fix - initializes fixed fbdev information |
878 | * drm_fb_helper_fill_fix - initializes fixed fbdev information |
869 | * @info: fbdev registered by the helper |
879 | * @info: fbdev registered by the helper |
870 | * @pitch: desired pitch |
880 | * @pitch: desired pitch |
871 | * @depth: desired depth |
881 | * @depth: desired depth |
872 | * |
882 | * |
873 | * Helper to fill in the fixed fbdev information useful for a non-accelerated |
883 | * Helper to fill in the fixed fbdev information useful for a non-accelerated |
874 | * fbdev emulations. Drivers which support acceleration methods which impose |
884 | * fbdev emulations. Drivers which support acceleration methods which impose |
875 | * additional constraints need to set up their own limits. |
885 | * additional constraints need to set up their own limits. |
876 | * |
886 | * |
877 | * Drivers should call this (or their equivalent setup code) from their |
887 | * Drivers should call this (or their equivalent setup code) from their |
878 | * ->fb_probe callback. |
888 | * ->fb_probe callback. |
879 | */ |
889 | */ |
880 | void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, |
890 | void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, |
881 | uint32_t depth) |
891 | uint32_t depth) |
882 | { |
892 | { |
883 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
893 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
884 | info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR : |
894 | info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR : |
885 | FB_VISUAL_TRUECOLOR; |
895 | FB_VISUAL_TRUECOLOR; |
886 | info->fix.mmio_start = 0; |
896 | info->fix.mmio_start = 0; |
887 | info->fix.mmio_len = 0; |
897 | info->fix.mmio_len = 0; |
888 | info->fix.type_aux = 0; |
898 | info->fix.type_aux = 0; |
889 | info->fix.xpanstep = 1; /* doing it in hw */ |
899 | info->fix.xpanstep = 1; /* doing it in hw */ |
890 | info->fix.ypanstep = 1; /* doing it in hw */ |
900 | info->fix.ypanstep = 1; /* doing it in hw */ |
891 | info->fix.ywrapstep = 0; |
901 | info->fix.ywrapstep = 0; |
892 | info->fix.accel = FB_ACCEL_NONE; |
902 | info->fix.accel = FB_ACCEL_NONE; |
893 | 903 | ||
894 | info->fix.line_length = pitch; |
904 | info->fix.line_length = pitch; |
895 | return; |
905 | return; |
896 | } |
906 | } |
897 | EXPORT_SYMBOL(drm_fb_helper_fill_fix); |
907 | EXPORT_SYMBOL(drm_fb_helper_fill_fix); |
898 | 908 | ||
899 | /** |
909 | /** |
900 | * drm_fb_helper_fill_var - initalizes variable fbdev information |
910 | * drm_fb_helper_fill_var - initalizes variable fbdev information |
901 | * @info: fbdev instance to set up |
911 | * @info: fbdev instance to set up |
902 | * @fb_helper: fb helper instance to use as template |
912 | * @fb_helper: fb helper instance to use as template |
903 | * @fb_width: desired fb width |
913 | * @fb_width: desired fb width |
904 | * @fb_height: desired fb height |
914 | * @fb_height: desired fb height |
905 | * |
915 | * |
906 | * Sets up the variable fbdev metainformation from the given fb helper instance |
916 | * Sets up the variable fbdev metainformation from the given fb helper instance |
907 | * and the drm framebuffer allocated in fb_helper->fb. |
917 | * and the drm framebuffer allocated in fb_helper->fb. |
908 | * |
918 | * |
909 | * Drivers should call this (or their equivalent setup code) from their |
919 | * Drivers should call this (or their equivalent setup code) from their |
910 | * ->fb_probe callback after having allocated the fbdev backing |
920 | * ->fb_probe callback after having allocated the fbdev backing |
911 | * storage framebuffer. |
921 | * storage framebuffer. |
912 | */ |
922 | */ |
913 | void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, |
923 | void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, |
914 | uint32_t fb_width, uint32_t fb_height) |
924 | uint32_t fb_width, uint32_t fb_height) |
915 | { |
925 | { |
916 | struct drm_framebuffer *fb = fb_helper->fb; |
926 | struct drm_framebuffer *fb = fb_helper->fb; |
917 | info->pseudo_palette = fb_helper->pseudo_palette; |
927 | info->pseudo_palette = fb_helper->pseudo_palette; |
918 | info->var.xres_virtual = fb->width; |
928 | info->var.xres_virtual = fb->width; |
919 | info->var.yres_virtual = fb->height; |
929 | info->var.yres_virtual = fb->height; |
920 | info->var.bits_per_pixel = fb->bits_per_pixel; |
930 | info->var.bits_per_pixel = fb->bits_per_pixel; |
921 | info->var.accel_flags = FB_ACCELF_TEXT; |
931 | info->var.accel_flags = FB_ACCELF_TEXT; |
922 | info->var.xoffset = 0; |
932 | info->var.xoffset = 0; |
923 | info->var.yoffset = 0; |
933 | info->var.yoffset = 0; |
924 | info->var.activate = FB_ACTIVATE_NOW; |
934 | info->var.activate = FB_ACTIVATE_NOW; |
925 | info->var.height = -1; |
935 | info->var.height = -1; |
926 | info->var.width = -1; |
936 | info->var.width = -1; |
927 | 937 | ||
928 | switch (fb->depth) { |
938 | switch (fb->depth) { |
929 | case 8: |
939 | case 8: |
930 | info->var.red.offset = 0; |
940 | info->var.red.offset = 0; |
931 | info->var.green.offset = 0; |
941 | info->var.green.offset = 0; |
932 | info->var.blue.offset = 0; |
942 | info->var.blue.offset = 0; |
933 | info->var.red.length = 8; /* 8bit DAC */ |
943 | info->var.red.length = 8; /* 8bit DAC */ |
934 | info->var.green.length = 8; |
944 | info->var.green.length = 8; |
935 | info->var.blue.length = 8; |
945 | info->var.blue.length = 8; |
936 | info->var.transp.offset = 0; |
946 | info->var.transp.offset = 0; |
937 | info->var.transp.length = 0; |
947 | info->var.transp.length = 0; |
938 | break; |
948 | break; |
939 | case 15: |
949 | case 15: |
940 | info->var.red.offset = 10; |
950 | info->var.red.offset = 10; |
941 | info->var.green.offset = 5; |
951 | info->var.green.offset = 5; |
942 | info->var.blue.offset = 0; |
952 | info->var.blue.offset = 0; |
943 | info->var.red.length = 5; |
953 | info->var.red.length = 5; |
944 | info->var.green.length = 5; |
954 | info->var.green.length = 5; |
945 | info->var.blue.length = 5; |
955 | info->var.blue.length = 5; |
946 | info->var.transp.offset = 15; |
956 | info->var.transp.offset = 15; |
947 | info->var.transp.length = 1; |
957 | info->var.transp.length = 1; |
948 | break; |
958 | break; |
949 | case 16: |
959 | case 16: |
950 | info->var.red.offset = 11; |
960 | info->var.red.offset = 11; |
951 | info->var.green.offset = 5; |
961 | info->var.green.offset = 5; |
952 | info->var.blue.offset = 0; |
962 | info->var.blue.offset = 0; |
953 | info->var.red.length = 5; |
963 | info->var.red.length = 5; |
954 | info->var.green.length = 6; |
964 | info->var.green.length = 6; |
955 | info->var.blue.length = 5; |
965 | info->var.blue.length = 5; |
956 | info->var.transp.offset = 0; |
966 | info->var.transp.offset = 0; |
957 | break; |
967 | break; |
958 | case 24: |
968 | case 24: |
959 | info->var.red.offset = 16; |
969 | info->var.red.offset = 16; |
960 | info->var.green.offset = 8; |
970 | info->var.green.offset = 8; |
961 | info->var.blue.offset = 0; |
971 | info->var.blue.offset = 0; |
962 | info->var.red.length = 8; |
972 | info->var.red.length = 8; |
963 | info->var.green.length = 8; |
973 | info->var.green.length = 8; |
964 | info->var.blue.length = 8; |
974 | info->var.blue.length = 8; |
965 | info->var.transp.offset = 0; |
975 | info->var.transp.offset = 0; |
966 | info->var.transp.length = 0; |
976 | info->var.transp.length = 0; |
967 | break; |
977 | break; |
968 | case 32: |
978 | case 32: |
969 | info->var.red.offset = 16; |
979 | info->var.red.offset = 16; |
970 | info->var.green.offset = 8; |
980 | info->var.green.offset = 8; |
971 | info->var.blue.offset = 0; |
981 | info->var.blue.offset = 0; |
972 | info->var.red.length = 8; |
982 | info->var.red.length = 8; |
973 | info->var.green.length = 8; |
983 | info->var.green.length = 8; |
974 | info->var.blue.length = 8; |
984 | info->var.blue.length = 8; |
975 | info->var.transp.offset = 24; |
985 | info->var.transp.offset = 24; |
976 | info->var.transp.length = 8; |
986 | info->var.transp.length = 8; |
977 | break; |
987 | break; |
978 | default: |
988 | default: |
979 | break; |
989 | break; |
980 | } |
990 | } |
981 | 991 | ||
982 | info->var.xres = fb_width; |
992 | info->var.xres = fb_width; |
983 | info->var.yres = fb_height; |
993 | info->var.yres = fb_height; |
984 | } |
994 | } |
985 | EXPORT_SYMBOL(drm_fb_helper_fill_var); |
995 | EXPORT_SYMBOL(drm_fb_helper_fill_var); |
986 | 996 | ||
987 | static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper, |
997 | static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper, |
988 | uint32_t maxX, |
998 | uint32_t maxX, |
989 | uint32_t maxY) |
999 | uint32_t maxY) |
990 | { |
1000 | { |
991 | struct drm_connector *connector; |
1001 | struct drm_connector *connector; |
992 | int count = 0; |
1002 | int count = 0; |
993 | int i; |
1003 | int i; |
994 | 1004 | ||
995 | for (i = 0; i < fb_helper->connector_count; i++) { |
1005 | for (i = 0; i < fb_helper->connector_count; i++) { |
996 | connector = fb_helper->connector_info[i]->connector; |
1006 | connector = fb_helper->connector_info[i]->connector; |
997 | count += connector->funcs->fill_modes(connector, maxX, maxY); |
1007 | count += connector->funcs->fill_modes(connector, maxX, maxY); |
998 | } |
1008 | } |
999 | 1009 | ||
1000 | return count; |
1010 | return count; |
1001 | } |
1011 | } |
1002 | 1012 | ||
1003 | struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height) |
1013 | struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height) |
1004 | { |
1014 | { |
1005 | struct drm_display_mode *mode; |
1015 | struct drm_display_mode *mode; |
1006 | 1016 | ||
1007 | list_for_each_entry(mode, &fb_connector->connector->modes, head) { |
1017 | list_for_each_entry(mode, &fb_connector->connector->modes, head) { |
1008 | if (mode->hdisplay > width || |
1018 | if (mode->hdisplay > width || |
1009 | mode->vdisplay > height) |
1019 | mode->vdisplay > height) |
1010 | continue; |
1020 | continue; |
1011 | if (mode->type & DRM_MODE_TYPE_PREFERRED) |
1021 | if (mode->type & DRM_MODE_TYPE_PREFERRED) |
1012 | return mode; |
1022 | return mode; |
1013 | } |
1023 | } |
1014 | return NULL; |
1024 | return NULL; |
1015 | } |
1025 | } |
1016 | EXPORT_SYMBOL(drm_has_preferred_mode); |
1026 | EXPORT_SYMBOL(drm_has_preferred_mode); |
1017 | 1027 | ||
1018 | static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector) |
1028 | static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector) |
1019 | { |
1029 | { |
1020 | struct drm_cmdline_mode *cmdline_mode; |
- | |
1021 | cmdline_mode = &fb_connector->cmdline_mode; |
1030 | return fb_connector->connector->cmdline_mode.specified; |
1022 | return cmdline_mode->specified; |
- | |
1023 | } |
1031 | } |
1024 | 1032 | ||
1025 | struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn, |
1033 | struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn, |
1026 | int width, int height) |
1034 | int width, int height) |
1027 | { |
1035 | { |
1028 | struct drm_cmdline_mode *cmdline_mode; |
1036 | struct drm_cmdline_mode *cmdline_mode; |
1029 | struct drm_display_mode *mode = NULL; |
1037 | struct drm_display_mode *mode = NULL; |
1030 | bool prefer_non_interlace; |
1038 | bool prefer_non_interlace; |
1031 | 1039 | ||
1032 | return NULL; |
1040 | return NULL; |
1033 | - | ||
1034 | cmdline_mode = &fb_helper_conn->cmdline_mode; |
1041 | |
1035 | if (cmdline_mode->specified == false) |
1042 | if (cmdline_mode->specified == false) |
1036 | return mode; |
1043 | return mode; |
1037 | 1044 | ||
1038 | /* attempt to find a matching mode in the list of modes |
1045 | /* attempt to find a matching mode in the list of modes |
1039 | * we have gotten so far, if not add a CVT mode that conforms |
1046 | * we have gotten so far, if not add a CVT mode that conforms |
1040 | */ |
1047 | */ |
1041 | if (cmdline_mode->rb || cmdline_mode->margins) |
1048 | if (cmdline_mode->rb || cmdline_mode->margins) |
1042 | goto create_mode; |
1049 | goto create_mode; |
1043 | 1050 | ||
1044 | prefer_non_interlace = !cmdline_mode->interlace; |
1051 | prefer_non_interlace = !cmdline_mode->interlace; |
1045 | again: |
1052 | again: |
1046 | list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) { |
1053 | list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) { |
1047 | /* check width/height */ |
1054 | /* check width/height */ |
1048 | if (mode->hdisplay != cmdline_mode->xres || |
1055 | if (mode->hdisplay != cmdline_mode->xres || |
1049 | mode->vdisplay != cmdline_mode->yres) |
1056 | mode->vdisplay != cmdline_mode->yres) |
1050 | continue; |
1057 | continue; |
1051 | 1058 | ||
1052 | if (cmdline_mode->refresh_specified) { |
1059 | if (cmdline_mode->refresh_specified) { |
1053 | if (mode->vrefresh != cmdline_mode->refresh) |
1060 | if (mode->vrefresh != cmdline_mode->refresh) |
1054 | continue; |
1061 | continue; |
1055 | } |
1062 | } |
1056 | 1063 | ||
1057 | if (cmdline_mode->interlace) { |
1064 | if (cmdline_mode->interlace) { |
1058 | if (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) |
1065 | if (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) |
1059 | continue; |
1066 | continue; |
1060 | } else if (prefer_non_interlace) { |
1067 | } else if (prefer_non_interlace) { |
1061 | if (mode->flags & DRM_MODE_FLAG_INTERLACE) |
1068 | if (mode->flags & DRM_MODE_FLAG_INTERLACE) |
1062 | continue; |
1069 | continue; |
1063 | } |
1070 | } |
1064 | return mode; |
1071 | return mode; |
1065 | } |
1072 | } |
1066 | 1073 | ||
1067 | if (prefer_non_interlace) { |
1074 | if (prefer_non_interlace) { |
1068 | prefer_non_interlace = false; |
1075 | prefer_non_interlace = false; |
1069 | goto again; |
1076 | goto again; |
1070 | } |
1077 | } |
1071 | 1078 | ||
1072 | create_mode: |
1079 | create_mode: |
1073 | mode = drm_mode_create_from_cmdline_mode(fb_helper_conn->connector->dev, |
1080 | mode = drm_mode_create_from_cmdline_mode(fb_helper_conn->connector->dev, |
1074 | cmdline_mode); |
1081 | cmdline_mode); |
1075 | list_add(&mode->head, &fb_helper_conn->connector->modes); |
1082 | list_add(&mode->head, &fb_helper_conn->connector->modes); |
1076 | return mode; |
1083 | return mode; |
1077 | } |
1084 | } |
1078 | EXPORT_SYMBOL(drm_pick_cmdline_mode); |
1085 | EXPORT_SYMBOL(drm_pick_cmdline_mode); |
1079 | 1086 | ||
1080 | static bool drm_connector_enabled(struct drm_connector *connector, bool strict) |
1087 | static bool drm_connector_enabled(struct drm_connector *connector, bool strict) |
1081 | { |
1088 | { |
1082 | bool enable; |
1089 | bool enable; |
1083 | 1090 | ||
1084 | if (strict) |
1091 | if (strict) |
1085 | enable = connector->status == connector_status_connected; |
1092 | enable = connector->status == connector_status_connected; |
1086 | else |
1093 | else |
1087 | enable = connector->status != connector_status_disconnected; |
1094 | enable = connector->status != connector_status_disconnected; |
1088 | 1095 | ||
1089 | return enable; |
1096 | return enable; |
1090 | } |
1097 | } |
1091 | 1098 | ||
1092 | static void drm_enable_connectors(struct drm_fb_helper *fb_helper, |
1099 | static void drm_enable_connectors(struct drm_fb_helper *fb_helper, |
1093 | bool *enabled) |
1100 | bool *enabled) |
1094 | { |
1101 | { |
1095 | bool any_enabled = false; |
1102 | bool any_enabled = false; |
1096 | struct drm_connector *connector; |
1103 | struct drm_connector *connector; |
1097 | int i = 0; |
1104 | int i = 0; |
1098 | 1105 | ||
1099 | for (i = 0; i < fb_helper->connector_count; i++) { |
1106 | for (i = 0; i < fb_helper->connector_count; i++) { |
1100 | connector = fb_helper->connector_info[i]->connector; |
1107 | connector = fb_helper->connector_info[i]->connector; |
1101 | enabled[i] = drm_connector_enabled(connector, true); |
1108 | enabled[i] = drm_connector_enabled(connector, true); |
1102 | DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id, |
1109 | DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id, |
1103 | enabled[i] ? "yes" : "no"); |
1110 | enabled[i] ? "yes" : "no"); |
1104 | any_enabled |= enabled[i]; |
1111 | any_enabled |= enabled[i]; |
1105 | } |
1112 | } |
1106 | 1113 | ||
1107 | if (any_enabled) |
1114 | if (any_enabled) |
1108 | return; |
1115 | return; |
1109 | 1116 | ||
1110 | for (i = 0; i < fb_helper->connector_count; i++) { |
1117 | for (i = 0; i < fb_helper->connector_count; i++) { |
1111 | connector = fb_helper->connector_info[i]->connector; |
1118 | connector = fb_helper->connector_info[i]->connector; |
1112 | enabled[i] = drm_connector_enabled(connector, false); |
1119 | enabled[i] = drm_connector_enabled(connector, false); |
1113 | } |
1120 | } |
1114 | } |
1121 | } |
1115 | 1122 | ||
1116 | static bool drm_target_cloned(struct drm_fb_helper *fb_helper, |
1123 | static bool drm_target_cloned(struct drm_fb_helper *fb_helper, |
1117 | struct drm_display_mode **modes, |
1124 | struct drm_display_mode **modes, |
- | 1125 | struct drm_fb_offset *offsets, |
|
1118 | bool *enabled, int width, int height) |
1126 | bool *enabled, int width, int height) |
1119 | { |
1127 | { |
1120 | int count, i, j; |
1128 | int count, i, j; |
1121 | bool can_clone = false; |
1129 | bool can_clone = false; |
1122 | struct drm_fb_helper_connector *fb_helper_conn; |
1130 | struct drm_fb_helper_connector *fb_helper_conn; |
1123 | struct drm_display_mode *dmt_mode, *mode; |
1131 | struct drm_display_mode *dmt_mode, *mode; |
1124 | 1132 | ||
1125 | /* only contemplate cloning in the single crtc case */ |
1133 | /* only contemplate cloning in the single crtc case */ |
1126 | if (fb_helper->crtc_count > 1) |
1134 | if (fb_helper->crtc_count > 1) |
1127 | return false; |
1135 | return false; |
1128 | 1136 | ||
1129 | count = 0; |
1137 | count = 0; |
1130 | for (i = 0; i < fb_helper->connector_count; i++) { |
1138 | for (i = 0; i < fb_helper->connector_count; i++) { |
1131 | if (enabled[i]) |
1139 | if (enabled[i]) |
1132 | count++; |
1140 | count++; |
1133 | } |
1141 | } |
1134 | 1142 | ||
1135 | /* only contemplate cloning if more than one connector is enabled */ |
1143 | /* only contemplate cloning if more than one connector is enabled */ |
1136 | if (count <= 1) |
1144 | if (count <= 1) |
1137 | return false; |
1145 | return false; |
1138 | 1146 | ||
1139 | /* check the command line or if nothing common pick 1024x768 */ |
1147 | /* check the command line or if nothing common pick 1024x768 */ |
1140 | can_clone = true; |
1148 | can_clone = true; |
1141 | for (i = 0; i < fb_helper->connector_count; i++) { |
1149 | for (i = 0; i < fb_helper->connector_count; i++) { |
1142 | if (!enabled[i]) |
1150 | if (!enabled[i]) |
1143 | continue; |
1151 | continue; |
1144 | fb_helper_conn = fb_helper->connector_info[i]; |
1152 | fb_helper_conn = fb_helper->connector_info[i]; |
1145 | modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); |
1153 | modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); |
1146 | if (!modes[i]) { |
1154 | if (!modes[i]) { |
1147 | can_clone = false; |
1155 | can_clone = false; |
1148 | break; |
1156 | break; |
1149 | } |
1157 | } |
1150 | for (j = 0; j < i; j++) { |
1158 | for (j = 0; j < i; j++) { |
1151 | if (!enabled[j]) |
1159 | if (!enabled[j]) |
1152 | continue; |
1160 | continue; |
1153 | if (!drm_mode_equal(modes[j], modes[i])) |
1161 | if (!drm_mode_equal(modes[j], modes[i])) |
1154 | can_clone = false; |
1162 | can_clone = false; |
1155 | } |
1163 | } |
1156 | } |
1164 | } |
1157 | 1165 | ||
1158 | if (can_clone) { |
1166 | if (can_clone) { |
1159 | DRM_DEBUG_KMS("can clone using command line\n"); |
1167 | DRM_DEBUG_KMS("can clone using command line\n"); |
1160 | return true; |
1168 | return true; |
1161 | } |
1169 | } |
1162 | 1170 | ||
1163 | /* try and find a 1024x768 mode on each connector */ |
1171 | /* try and find a 1024x768 mode on each connector */ |
1164 | can_clone = true; |
1172 | can_clone = true; |
1165 | dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60, false); |
1173 | dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60, false); |
1166 | 1174 | ||
1167 | for (i = 0; i < fb_helper->connector_count; i++) { |
1175 | for (i = 0; i < fb_helper->connector_count; i++) { |
1168 | 1176 | ||
1169 | if (!enabled[i]) |
1177 | if (!enabled[i]) |
1170 | continue; |
1178 | continue; |
1171 | 1179 | ||
1172 | fb_helper_conn = fb_helper->connector_info[i]; |
1180 | fb_helper_conn = fb_helper->connector_info[i]; |
1173 | list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) { |
1181 | list_for_each_entry(mode, &fb_helper_conn->connector->modes, head) { |
1174 | if (drm_mode_equal(mode, dmt_mode)) |
1182 | if (drm_mode_equal(mode, dmt_mode)) |
1175 | modes[i] = mode; |
1183 | modes[i] = mode; |
1176 | } |
1184 | } |
1177 | if (!modes[i]) |
1185 | if (!modes[i]) |
1178 | can_clone = false; |
1186 | can_clone = false; |
1179 | } |
1187 | } |
1180 | 1188 | ||
1181 | if (can_clone) { |
1189 | if (can_clone) { |
1182 | DRM_DEBUG_KMS("can clone using 1024x768\n"); |
1190 | DRM_DEBUG_KMS("can clone using 1024x768\n"); |
1183 | return true; |
1191 | return true; |
1184 | } |
1192 | } |
1185 | DRM_INFO("kms: can't enable cloning when we probably wanted to.\n"); |
1193 | DRM_INFO("kms: can't enable cloning when we probably wanted to.\n"); |
1186 | return false; |
1194 | return false; |
1187 | } |
1195 | } |
- | 1196 | ||
- | 1197 | static int drm_get_tile_offsets(struct drm_fb_helper *fb_helper, |
|
- | 1198 | struct drm_display_mode **modes, |
|
- | 1199 | struct drm_fb_offset *offsets, |
|
- | 1200 | int idx, |
|
- | 1201 | int h_idx, int v_idx) |
|
- | 1202 | { |
|
- | 1203 | struct drm_fb_helper_connector *fb_helper_conn; |
|
- | 1204 | int i; |
|
- | 1205 | int hoffset = 0, voffset = 0; |
|
- | 1206 | ||
- | 1207 | for (i = 0; i < fb_helper->connector_count; i++) { |
|
- | 1208 | fb_helper_conn = fb_helper->connector_info[i]; |
|
- | 1209 | if (!fb_helper_conn->connector->has_tile) |
|
- | 1210 | continue; |
|
- | 1211 | ||
- | 1212 | if (!modes[i] && (h_idx || v_idx)) { |
|
- | 1213 | DRM_DEBUG_KMS("no modes for connector tiled %d %d\n", i, |
|
- | 1214 | fb_helper_conn->connector->base.id); |
|
- | 1215 | continue; |
|
- | 1216 | } |
|
- | 1217 | if (fb_helper_conn->connector->tile_h_loc < h_idx) |
|
- | 1218 | hoffset += modes[i]->hdisplay; |
|
- | 1219 | ||
- | 1220 | if (fb_helper_conn->connector->tile_v_loc < v_idx) |
|
- | 1221 | voffset += modes[i]->vdisplay; |
|
- | 1222 | } |
|
- | 1223 | offsets[idx].x = hoffset; |
|
- | 1224 | offsets[idx].y = voffset; |
|
- | 1225 | DRM_DEBUG_KMS("returned %d %d for %d %d\n", hoffset, voffset, h_idx, v_idx); |
|
- | 1226 | return 0; |
|
- | 1227 | } |
|
1188 | 1228 | ||
1189 | static bool drm_target_preferred(struct drm_fb_helper *fb_helper, |
1229 | static bool drm_target_preferred(struct drm_fb_helper *fb_helper, |
- | 1230 | struct drm_display_mode **modes, |
|
1190 | struct drm_display_mode **modes, |
1231 | struct drm_fb_offset *offsets, |
1191 | bool *enabled, int width, int height) |
1232 | bool *enabled, int width, int height) |
1192 | { |
1233 | { |
1193 | struct drm_fb_helper_connector *fb_helper_conn; |
1234 | struct drm_fb_helper_connector *fb_helper_conn; |
1194 | int i; |
1235 | int i; |
- | 1236 | uint64_t conn_configured = 0, mask; |
|
- | 1237 | int tile_pass = 0; |
|
- | 1238 | mask = (1 << fb_helper->connector_count) - 1; |
|
1195 | 1239 | retry: |
|
1196 | for (i = 0; i < fb_helper->connector_count; i++) { |
1240 | for (i = 0; i < fb_helper->connector_count; i++) { |
1197 | fb_helper_conn = fb_helper->connector_info[i]; |
1241 | fb_helper_conn = fb_helper->connector_info[i]; |
- | 1242 | ||
- | 1243 | if (conn_configured & (1 << i)) |
|
- | 1244 | continue; |
|
1198 | 1245 | ||
- | 1246 | if (enabled[i] == false) { |
|
- | 1247 | conn_configured |= (1 << i); |
|
- | 1248 | continue; |
|
- | 1249 | } |
|
- | 1250 | ||
- | 1251 | /* first pass over all the untiled connectors */ |
|
- | 1252 | if (tile_pass == 0 && fb_helper_conn->connector->has_tile) |
|
- | 1253 | continue; |
|
- | 1254 | ||
- | 1255 | if (tile_pass == 1) { |
|
- | 1256 | if (fb_helper_conn->connector->tile_h_loc != 0 || |
|
- | 1257 | fb_helper_conn->connector->tile_v_loc != 0) |
|
- | 1258 | continue; |
|
- | 1259 | ||
- | 1260 | } else { |
|
- | 1261 | if (fb_helper_conn->connector->tile_h_loc != tile_pass -1 && |
|
- | 1262 | fb_helper_conn->connector->tile_v_loc != tile_pass - 1) |
|
1199 | if (enabled[i] == false) |
1263 | /* if this tile_pass doesn't cover any of the tiles - keep going */ |
- | 1264 | continue; |
|
- | 1265 | ||
- | 1266 | /* find the tile offsets for this pass - need |
|
- | 1267 | to find all tiles left and above */ |
|
- | 1268 | drm_get_tile_offsets(fb_helper, modes, offsets, |
|
1200 | continue; |
1269 | i, fb_helper_conn->connector->tile_h_loc, fb_helper_conn->connector->tile_v_loc); |
1201 | 1270 | } |
|
1202 | DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n", |
1271 | DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n", |
1203 | fb_helper_conn->connector->base.id); |
1272 | fb_helper_conn->connector->base.id); |
1204 | 1273 | ||
1205 | /* got for command line mode first */ |
1274 | /* got for command line mode first */ |
1206 | modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); |
1275 | modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); |
1207 | if (!modes[i]) { |
1276 | if (!modes[i]) { |
1208 | DRM_DEBUG_KMS("looking for preferred mode on connector %d\n", |
1277 | DRM_DEBUG_KMS("looking for preferred mode on connector %d %d\n", |
1209 | fb_helper_conn->connector->base.id); |
1278 | fb_helper_conn->connector->base.id, fb_helper_conn->connector->tile_group ? fb_helper_conn->connector->tile_group->id : 0); |
1210 | modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height); |
1279 | modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height); |
1211 | } |
1280 | } |
1212 | /* No preferred modes, pick one off the list */ |
1281 | /* No preferred modes, pick one off the list */ |
1213 | if (!modes[i] && !list_empty(&fb_helper_conn->connector->modes)) { |
1282 | if (!modes[i] && !list_empty(&fb_helper_conn->connector->modes)) { |
1214 | list_for_each_entry(modes[i], &fb_helper_conn->connector->modes, head) |
1283 | list_for_each_entry(modes[i], &fb_helper_conn->connector->modes, head) |
1215 | break; |
1284 | break; |
1216 | } |
1285 | } |
1217 | DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name : |
1286 | DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name : |
1218 | "none"); |
1287 | "none"); |
- | 1288 | conn_configured |= (1 << i); |
|
- | 1289 | } |
|
- | 1290 | ||
- | 1291 | if ((conn_configured & mask) != mask) { |
|
- | 1292 | tile_pass++; |
|
- | 1293 | goto retry; |
|
1219 | } |
1294 | } |
1220 | return true; |
1295 | return true; |
1221 | } |
1296 | } |
1222 | 1297 | ||
1223 | static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, |
1298 | static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, |
1224 | struct drm_fb_helper_crtc **best_crtcs, |
1299 | struct drm_fb_helper_crtc **best_crtcs, |
1225 | struct drm_display_mode **modes, |
1300 | struct drm_display_mode **modes, |
1226 | int n, int width, int height) |
1301 | int n, int width, int height) |
1227 | { |
1302 | { |
1228 | int c, o; |
1303 | int c, o; |
1229 | struct drm_device *dev = fb_helper->dev; |
1304 | struct drm_device *dev = fb_helper->dev; |
1230 | struct drm_connector *connector; |
1305 | struct drm_connector *connector; |
1231 | struct drm_connector_helper_funcs *connector_funcs; |
1306 | struct drm_connector_helper_funcs *connector_funcs; |
1232 | struct drm_encoder *encoder; |
1307 | struct drm_encoder *encoder; |
1233 | int my_score, best_score, score; |
1308 | int my_score, best_score, score; |
1234 | struct drm_fb_helper_crtc **crtcs, *crtc; |
1309 | struct drm_fb_helper_crtc **crtcs, *crtc; |
1235 | struct drm_fb_helper_connector *fb_helper_conn; |
1310 | struct drm_fb_helper_connector *fb_helper_conn; |
1236 | 1311 | ||
1237 | if (n == fb_helper->connector_count) |
1312 | if (n == fb_helper->connector_count) |
1238 | return 0; |
1313 | return 0; |
1239 | 1314 | ||
1240 | fb_helper_conn = fb_helper->connector_info[n]; |
1315 | fb_helper_conn = fb_helper->connector_info[n]; |
1241 | connector = fb_helper_conn->connector; |
1316 | connector = fb_helper_conn->connector; |
1242 | 1317 | ||
1243 | best_crtcs[n] = NULL; |
1318 | best_crtcs[n] = NULL; |
1244 | best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height); |
1319 | best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height); |
1245 | if (modes[n] == NULL) |
1320 | if (modes[n] == NULL) |
1246 | return best_score; |
1321 | return best_score; |
1247 | 1322 | ||
1248 | crtcs = kzalloc(dev->mode_config.num_connector * |
1323 | crtcs = kzalloc(dev->mode_config.num_connector * |
1249 | sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL); |
1324 | sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL); |
1250 | if (!crtcs) |
1325 | if (!crtcs) |
1251 | return best_score; |
1326 | return best_score; |
1252 | 1327 | ||
1253 | my_score = 1; |
1328 | my_score = 1; |
1254 | if (connector->status == connector_status_connected) |
1329 | if (connector->status == connector_status_connected) |
1255 | my_score++; |
1330 | my_score++; |
1256 | if (drm_has_cmdline_mode(fb_helper_conn)) |
1331 | if (drm_has_cmdline_mode(fb_helper_conn)) |
1257 | my_score++; |
1332 | my_score++; |
1258 | if (drm_has_preferred_mode(fb_helper_conn, width, height)) |
1333 | if (drm_has_preferred_mode(fb_helper_conn, width, height)) |
1259 | my_score++; |
1334 | my_score++; |
1260 | 1335 | ||
1261 | connector_funcs = connector->helper_private; |
1336 | connector_funcs = connector->helper_private; |
1262 | encoder = connector_funcs->best_encoder(connector); |
1337 | encoder = connector_funcs->best_encoder(connector); |
1263 | if (!encoder) |
1338 | if (!encoder) |
1264 | goto out; |
1339 | goto out; |
1265 | 1340 | ||
1266 | /* select a crtc for this connector and then attempt to configure |
1341 | /* select a crtc for this connector and then attempt to configure |
1267 | remaining connectors */ |
1342 | remaining connectors */ |
1268 | for (c = 0; c < fb_helper->crtc_count; c++) { |
1343 | for (c = 0; c < fb_helper->crtc_count; c++) { |
1269 | crtc = &fb_helper->crtc_info[c]; |
1344 | crtc = &fb_helper->crtc_info[c]; |
1270 | 1345 | ||
1271 | if ((encoder->possible_crtcs & (1 << c)) == 0) |
1346 | if ((encoder->possible_crtcs & (1 << c)) == 0) |
1272 | continue; |
1347 | continue; |
1273 | 1348 | ||
1274 | for (o = 0; o < n; o++) |
1349 | for (o = 0; o < n; o++) |
1275 | if (best_crtcs[o] == crtc) |
1350 | if (best_crtcs[o] == crtc) |
1276 | break; |
1351 | break; |
1277 | 1352 | ||
1278 | if (o < n) { |
1353 | if (o < n) { |
1279 | /* ignore cloning unless only a single crtc */ |
1354 | /* ignore cloning unless only a single crtc */ |
1280 | if (fb_helper->crtc_count > 1) |
1355 | if (fb_helper->crtc_count > 1) |
1281 | continue; |
1356 | continue; |
1282 | 1357 | ||
1283 | if (!drm_mode_equal(modes[o], modes[n])) |
1358 | if (!drm_mode_equal(modes[o], modes[n])) |
1284 | continue; |
1359 | continue; |
1285 | } |
1360 | } |
1286 | 1361 | ||
1287 | crtcs[n] = crtc; |
1362 | crtcs[n] = crtc; |
1288 | memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *)); |
1363 | memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *)); |
1289 | score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1, |
1364 | score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1, |
1290 | width, height); |
1365 | width, height); |
1291 | if (score > best_score) { |
1366 | if (score > best_score) { |
1292 | best_score = score; |
1367 | best_score = score; |
1293 | memcpy(best_crtcs, crtcs, |
1368 | memcpy(best_crtcs, crtcs, |
1294 | dev->mode_config.num_connector * |
1369 | dev->mode_config.num_connector * |
1295 | sizeof(struct drm_fb_helper_crtc *)); |
1370 | sizeof(struct drm_fb_helper_crtc *)); |
1296 | } |
1371 | } |
1297 | } |
1372 | } |
1298 | out: |
1373 | out: |
1299 | kfree(crtcs); |
1374 | kfree(crtcs); |
1300 | return best_score; |
1375 | return best_score; |
1301 | } |
1376 | } |
1302 | 1377 | ||
1303 | static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) |
1378 | static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) |
1304 | { |
1379 | { |
1305 | struct drm_device *dev = fb_helper->dev; |
1380 | struct drm_device *dev = fb_helper->dev; |
1306 | struct drm_fb_helper_crtc **crtcs; |
1381 | struct drm_fb_helper_crtc **crtcs; |
1307 | struct drm_display_mode **modes; |
1382 | struct drm_display_mode **modes; |
- | 1383 | struct drm_fb_offset *offsets; |
|
1308 | struct drm_mode_set *modeset; |
1384 | struct drm_mode_set *modeset; |
1309 | bool *enabled; |
1385 | bool *enabled; |
1310 | int width, height; |
1386 | int width, height; |
1311 | int i; |
1387 | int i; |
1312 | 1388 | ||
1313 | DRM_DEBUG_KMS("\n"); |
1389 | DRM_DEBUG_KMS("\n"); |
1314 | 1390 | ||
1315 | width = dev->mode_config.max_width; |
1391 | width = dev->mode_config.max_width; |
1316 | height = dev->mode_config.max_height; |
1392 | height = dev->mode_config.max_height; |
1317 | 1393 | ||
1318 | crtcs = kcalloc(dev->mode_config.num_connector, |
1394 | crtcs = kcalloc(dev->mode_config.num_connector, |
1319 | sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL); |
1395 | sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL); |
1320 | modes = kcalloc(dev->mode_config.num_connector, |
1396 | modes = kcalloc(dev->mode_config.num_connector, |
1321 | sizeof(struct drm_display_mode *), GFP_KERNEL); |
1397 | sizeof(struct drm_display_mode *), GFP_KERNEL); |
- | 1398 | offsets = kcalloc(dev->mode_config.num_connector, |
|
- | 1399 | sizeof(struct drm_fb_offset), GFP_KERNEL); |
|
1322 | enabled = kcalloc(dev->mode_config.num_connector, |
1400 | enabled = kcalloc(dev->mode_config.num_connector, |
1323 | sizeof(bool), GFP_KERNEL); |
1401 | sizeof(bool), GFP_KERNEL); |
1324 | if (!crtcs || !modes || !enabled) { |
1402 | if (!crtcs || !modes || !enabled || !offsets) { |
1325 | DRM_ERROR("Memory allocation failed\n"); |
1403 | DRM_ERROR("Memory allocation failed\n"); |
1326 | goto out; |
1404 | goto out; |
1327 | } |
1405 | } |
1328 | 1406 | ||
1329 | 1407 | ||
1330 | drm_enable_connectors(fb_helper, enabled); |
1408 | drm_enable_connectors(fb_helper, enabled); |
1331 | 1409 | ||
1332 | if (!(fb_helper->funcs->initial_config && |
1410 | if (!(fb_helper->funcs->initial_config && |
1333 | fb_helper->funcs->initial_config(fb_helper, crtcs, modes, |
1411 | fb_helper->funcs->initial_config(fb_helper, crtcs, modes, |
- | 1412 | offsets, |
|
1334 | enabled, width, height))) { |
1413 | enabled, width, height))) { |
1335 | memset(modes, 0, dev->mode_config.num_connector*sizeof(modes[0])); |
1414 | memset(modes, 0, dev->mode_config.num_connector*sizeof(modes[0])); |
1336 | memset(crtcs, 0, dev->mode_config.num_connector*sizeof(crtcs[0])); |
1415 | memset(crtcs, 0, dev->mode_config.num_connector*sizeof(crtcs[0])); |
- | 1416 | memset(offsets, 0, dev->mode_config.num_connector*sizeof(offsets[0])); |
|
1337 | 1417 | ||
1338 | if (!drm_target_cloned(fb_helper, |
1418 | if (!drm_target_cloned(fb_helper, modes, offsets, |
1339 | modes, enabled, width, height) && |
1419 | enabled, width, height) && |
1340 | !drm_target_preferred(fb_helper, |
1420 | !drm_target_preferred(fb_helper, modes, offsets, |
1341 | modes, enabled, width, height)) |
1421 | enabled, width, height)) |
1342 | DRM_ERROR("Unable to find initial modes\n"); |
1422 | DRM_ERROR("Unable to find initial modes\n"); |
1343 | 1423 | ||
1344 | DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", |
1424 | DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", |
1345 | width, height); |
1425 | width, height); |
1346 | 1426 | ||
1347 | drm_pick_crtcs(fb_helper, crtcs, modes, 0, width, height); |
1427 | drm_pick_crtcs(fb_helper, crtcs, modes, 0, width, height); |
1348 | } |
1428 | } |
1349 | 1429 | ||
1350 | /* need to set the modesets up here for use later */ |
1430 | /* need to set the modesets up here for use later */ |
1351 | /* fill out the connector<->crtc mappings into the modesets */ |
1431 | /* fill out the connector<->crtc mappings into the modesets */ |
1352 | for (i = 0; i < fb_helper->crtc_count; i++) { |
1432 | for (i = 0; i < fb_helper->crtc_count; i++) { |
1353 | modeset = &fb_helper->crtc_info[i].mode_set; |
1433 | modeset = &fb_helper->crtc_info[i].mode_set; |
1354 | modeset->num_connectors = 0; |
1434 | modeset->num_connectors = 0; |
1355 | modeset->fb = NULL; |
1435 | modeset->fb = NULL; |
1356 | } |
1436 | } |
1357 | 1437 | ||
1358 | for (i = 0; i < fb_helper->connector_count; i++) { |
1438 | for (i = 0; i < fb_helper->connector_count; i++) { |
1359 | struct drm_display_mode *mode = modes[i]; |
1439 | struct drm_display_mode *mode = modes[i]; |
1360 | struct drm_fb_helper_crtc *fb_crtc = crtcs[i]; |
1440 | struct drm_fb_helper_crtc *fb_crtc = crtcs[i]; |
- | 1441 | struct drm_fb_offset *offset = &offsets[i]; |
|
1361 | modeset = &fb_crtc->mode_set; |
1442 | modeset = &fb_crtc->mode_set; |
1362 | 1443 | ||
1363 | if (mode && fb_crtc) { |
1444 | if (mode && fb_crtc) { |
1364 | DRM_DEBUG_KMS("desired mode %s set on crtc %d\n", |
1445 | DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n", |
1365 | mode->name, fb_crtc->mode_set.crtc->base.id); |
1446 | mode->name, fb_crtc->mode_set.crtc->base.id, offset->x, offset->y); |
1366 | fb_crtc->desired_mode = mode; |
1447 | fb_crtc->desired_mode = mode; |
- | 1448 | fb_crtc->x = offset->x; |
|
- | 1449 | fb_crtc->y = offset->y; |
|
1367 | if (modeset->mode) |
1450 | if (modeset->mode) |
1368 | drm_mode_destroy(dev, modeset->mode); |
1451 | drm_mode_destroy(dev, modeset->mode); |
1369 | modeset->mode = drm_mode_duplicate(dev, |
1452 | modeset->mode = drm_mode_duplicate(dev, |
1370 | fb_crtc->desired_mode); |
1453 | fb_crtc->desired_mode); |
1371 | modeset->connectors[modeset->num_connectors++] = fb_helper->connector_info[i]->connector; |
1454 | modeset->connectors[modeset->num_connectors++] = fb_helper->connector_info[i]->connector; |
1372 | modeset->fb = fb_helper->fb; |
1455 | modeset->fb = fb_helper->fb; |
- | 1456 | modeset->x = offset->x; |
|
- | 1457 | modeset->y = offset->y; |
|
1373 | } |
1458 | } |
1374 | } |
1459 | } |
1375 | 1460 | ||
1376 | /* Clear out any old modes if there are no more connected outputs. */ |
1461 | /* Clear out any old modes if there are no more connected outputs. */ |
1377 | for (i = 0; i < fb_helper->crtc_count; i++) { |
1462 | for (i = 0; i < fb_helper->crtc_count; i++) { |
1378 | modeset = &fb_helper->crtc_info[i].mode_set; |
1463 | modeset = &fb_helper->crtc_info[i].mode_set; |
1379 | if (modeset->num_connectors == 0) { |
1464 | if (modeset->num_connectors == 0) { |
1380 | BUG_ON(modeset->fb); |
1465 | BUG_ON(modeset->fb); |
1381 | BUG_ON(modeset->num_connectors); |
- | |
1382 | if (modeset->mode) |
1466 | if (modeset->mode) |
1383 | drm_mode_destroy(dev, modeset->mode); |
1467 | drm_mode_destroy(dev, modeset->mode); |
1384 | modeset->mode = NULL; |
1468 | modeset->mode = NULL; |
1385 | } |
1469 | } |
1386 | } |
1470 | } |
1387 | out: |
1471 | out: |
1388 | kfree(crtcs); |
1472 | kfree(crtcs); |
1389 | kfree(modes); |
1473 | kfree(modes); |
- | 1474 | kfree(offsets); |
|
1390 | kfree(enabled); |
1475 | kfree(enabled); |
1391 | } |
1476 | } |
1392 | 1477 | ||
1393 | /** |
1478 | /** |
1394 | * drm_fb_helper_initial_config - setup a sane initial connector configuration |
1479 | * drm_fb_helper_initial_config - setup a sane initial connector configuration |
1395 | * @fb_helper: fb_helper device struct |
1480 | * @fb_helper: fb_helper device struct |
1396 | * @bpp_sel: bpp value to use for the framebuffer configuration |
1481 | * @bpp_sel: bpp value to use for the framebuffer configuration |
1397 | * |
1482 | * |
1398 | * Scans the CRTCs and connectors and tries to put together an initial setup. |
1483 | * Scans the CRTCs and connectors and tries to put together an initial setup. |
1399 | * At the moment, this is a cloned configuration across all heads with |
1484 | * At the moment, this is a cloned configuration across all heads with |
1400 | * a new framebuffer object as the backing store. |
1485 | * a new framebuffer object as the backing store. |
1401 | * |
1486 | * |
1402 | * Note that this also registers the fbdev and so allows userspace to call into |
1487 | * Note that this also registers the fbdev and so allows userspace to call into |
1403 | * the driver through the fbdev interfaces. |
1488 | * the driver through the fbdev interfaces. |
1404 | * |
1489 | * |
1405 | * This function will call down into the ->fb_probe callback to let |
1490 | * This function will call down into the ->fb_probe callback to let |
1406 | * the driver allocate and initialize the fbdev info structure and the drm |
1491 | * the driver allocate and initialize the fbdev info structure and the drm |
1407 | * framebuffer used to back the fbdev. drm_fb_helper_fill_var() and |
1492 | * framebuffer used to back the fbdev. drm_fb_helper_fill_var() and |
1408 | * drm_fb_helper_fill_fix() are provided as helpers to setup simple default |
1493 | * drm_fb_helper_fill_fix() are provided as helpers to setup simple default |
1409 | * values for the fbdev info structure. |
1494 | * values for the fbdev info structure. |
1410 | * |
1495 | * |
1411 | * RETURNS: |
1496 | * RETURNS: |
1412 | * Zero if everything went ok, nonzero otherwise. |
1497 | * Zero if everything went ok, nonzero otherwise. |
1413 | */ |
1498 | */ |
1414 | bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel) |
1499 | bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel) |
1415 | { |
1500 | { |
1416 | struct drm_device *dev = fb_helper->dev; |
1501 | struct drm_device *dev = fb_helper->dev; |
1417 | int count = 0; |
1502 | int count = 0; |
1418 | - | ||
1419 | // drm_fb_helper_parse_command_line(fb_helper); |
- | |
1420 | 1503 | ||
1421 | mutex_lock(&dev->mode_config.mutex); |
1504 | mutex_lock(&dev->mode_config.mutex); |
1422 | count = drm_fb_helper_probe_connector_modes(fb_helper, |
1505 | count = drm_fb_helper_probe_connector_modes(fb_helper, |
1423 | dev->mode_config.max_width, |
1506 | dev->mode_config.max_width, |
1424 | dev->mode_config.max_height); |
1507 | dev->mode_config.max_height); |
1425 | mutex_unlock(&dev->mode_config.mutex); |
1508 | mutex_unlock(&dev->mode_config.mutex); |
1426 | /* |
1509 | /* |
1427 | * we shouldn't end up with no modes here. |
1510 | * we shouldn't end up with no modes here. |
1428 | */ |
1511 | */ |
1429 | if (count == 0) |
1512 | if (count == 0) |
1430 | dev_info(fb_helper->dev->dev, "No connectors reported connected with modes\n"); |
1513 | dev_info(fb_helper->dev->dev, "No connectors reported connected with modes\n"); |
1431 | 1514 | ||
1432 | drm_setup_crtcs(fb_helper); |
1515 | drm_setup_crtcs(fb_helper); |
1433 | 1516 | ||
1434 | return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); |
1517 | return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); |
1435 | } |
1518 | } |
1436 | EXPORT_SYMBOL(drm_fb_helper_initial_config); |
1519 | EXPORT_SYMBOL(drm_fb_helper_initial_config); |
1437 | 1520 | ||
1438 | /** |
1521 | /** |
1439 | * drm_fb_helper_hotplug_event - respond to a hotplug notification by |
1522 | * drm_fb_helper_hotplug_event - respond to a hotplug notification by |
1440 | * probing all the outputs attached to the fb |
1523 | * probing all the outputs attached to the fb |
1441 | * @fb_helper: the drm_fb_helper |
1524 | * @fb_helper: the drm_fb_helper |
1442 | * |
1525 | * |
1443 | * Scan the connectors attached to the fb_helper and try to put together a |
1526 | * Scan the connectors attached to the fb_helper and try to put together a |
1444 | * setup after *notification of a change in output configuration. |
1527 | * setup after *notification of a change in output configuration. |
1445 | * |
1528 | * |
1446 | * Called at runtime, takes the mode config locks to be able to check/change the |
1529 | * Called at runtime, takes the mode config locks to be able to check/change the |
1447 | * modeset configuration. Must be run from process context (which usually means |
1530 | * modeset configuration. Must be run from process context (which usually means |
1448 | * either the output polling work or a work item launched from the driver's |
1531 | * either the output polling work or a work item launched from the driver's |
1449 | * hotplug interrupt). |
1532 | * hotplug interrupt). |
1450 | * |
1533 | * |
1451 | * Note that drivers may call this even before calling |
1534 | * Note that drivers may call this even before calling |
1452 | * drm_fb_helper_initial_config but only aftert drm_fb_helper_init. This allows |
1535 | * drm_fb_helper_initial_config but only aftert drm_fb_helper_init. This allows |
1453 | * for a race-free fbcon setup and will make sure that the fbdev emulation will |
1536 | * for a race-free fbcon setup and will make sure that the fbdev emulation will |
1454 | * not miss any hotplug events. |
1537 | * not miss any hotplug events. |
1455 | * |
1538 | * |
1456 | * RETURNS: |
1539 | * RETURNS: |
1457 | * 0 on success and a non-zero error code otherwise. |
1540 | * 0 on success and a non-zero error code otherwise. |
1458 | */ |
1541 | */ |
1459 | int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) |
1542 | int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) |
1460 | { |
1543 | { |
1461 | struct drm_device *dev = fb_helper->dev; |
1544 | struct drm_device *dev = fb_helper->dev; |
1462 | u32 max_width, max_height; |
1545 | u32 max_width, max_height; |
1463 | 1546 | ||
1464 | mutex_lock(&fb_helper->dev->mode_config.mutex); |
1547 | mutex_lock(&fb_helper->dev->mode_config.mutex); |
1465 | if (!fb_helper->fb || !drm_fb_helper_is_bound(fb_helper)) { |
1548 | if (!fb_helper->fb || !drm_fb_helper_is_bound(fb_helper)) { |
1466 | fb_helper->delayed_hotplug = true; |
1549 | fb_helper->delayed_hotplug = true; |
1467 | mutex_unlock(&fb_helper->dev->mode_config.mutex); |
1550 | mutex_unlock(&fb_helper->dev->mode_config.mutex); |
1468 | return 0; |
1551 | return 0; |
1469 | } |
1552 | } |
1470 | DRM_DEBUG_KMS("\n"); |
1553 | DRM_DEBUG_KMS("\n"); |
1471 | 1554 | ||
1472 | max_width = fb_helper->fb->width; |
1555 | max_width = fb_helper->fb->width; |
1473 | max_height = fb_helper->fb->height; |
1556 | max_height = fb_helper->fb->height; |
1474 | 1557 | ||
1475 | drm_fb_helper_probe_connector_modes(fb_helper, max_width, max_height); |
1558 | drm_fb_helper_probe_connector_modes(fb_helper, max_width, max_height); |
1476 | mutex_unlock(&fb_helper->dev->mode_config.mutex); |
1559 | mutex_unlock(&fb_helper->dev->mode_config.mutex); |
1477 | 1560 | ||
1478 | drm_modeset_lock_all(dev); |
1561 | drm_modeset_lock_all(dev); |
1479 | drm_setup_crtcs(fb_helper); |
1562 | drm_setup_crtcs(fb_helper); |
1480 | drm_modeset_unlock_all(dev); |
1563 | drm_modeset_unlock_all(dev); |
1481 | drm_fb_helper_set_par(fb_helper->fbdev); |
1564 | drm_fb_helper_set_par(fb_helper->fbdev); |
1482 | 1565 | ||
1483 | return 0; |
1566 | return 0; |
1484 | } |
1567 | } |
1485 | EXPORT_SYMBOL(drm_fb_helper_hotplug_event); |
1568 | EXPORT_SYMBOL(drm_fb_helper_hotplug_event); |
1486 | 1569 | ||
1487 | /* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT) |
1570 | /* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT) |
1488 | * but the module doesn't depend on any fb console symbols. At least |
1571 | * but the module doesn't depend on any fb console symbols. At least |
1489 | * attempt to load fbcon to avoid leaving the system without a usable console. |
1572 | * attempt to load fbcon to avoid leaving the system without a usable console. |
1490 | */ |
1573 | */ |
1491 | #if defined(CONFIG_FRAMEBUFFER_CONSOLE_MODULE) && !defined(CONFIG_EXPERT) |
1574 | #if defined(CONFIG_FRAMEBUFFER_CONSOLE_MODULE) && !defined(CONFIG_EXPERT) |
1492 | static int __init drm_fb_helper_modinit(void) |
1575 | static int __init drm_fb_helper_modinit(void) |
1493 | { |
1576 | { |
1494 | const char *name = "fbcon"; |
1577 | const char *name = "fbcon"; |
1495 | struct module *fbcon; |
1578 | struct module *fbcon; |
1496 | 1579 | ||
1497 | mutex_lock(&module_mutex); |
1580 | mutex_lock(&module_mutex); |
1498 | fbcon = find_module(name); |
1581 | fbcon = find_module(name); |
1499 | mutex_unlock(&module_mutex); |
1582 | mutex_unlock(&module_mutex); |
1500 | 1583 | ||
1501 | if (!fbcon) |
1584 | if (!fbcon) |
1502 | request_module_nowait(name); |
1585 | request_module_nowait(name); |
1503 | return 0; |
1586 | return 0; |
1504 | } |
1587 | } |
1505 | 1588 | ||
1506 | module_init(drm_fb_helper_modinit); |
1589 | module_init(drm_fb_helper_modinit); |
1507 | #endif>>>->>>><>>>>>>=>>>>>>>>>>>>>>>>>><>=><=>><>><>><>><>>>>>>>>>>>> |
1590 | #endif>>>->>>><>>><>><>><>>><>>>>>>>=>>>>>>>>>>>>>>>>>><>=><=>><>><>><>><>>>>>>>>>>>> |