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Rev | Author | Line No. | Line |
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1179 | serge | 1 | /* |
2 | * Copyright (c) 2006-2009 Red Hat Inc. |
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3 | * Copyright (c) 2006-2008 Intel Corporation |
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4 | * Copyright (c) 2007 Dave Airlie |
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5 | * |
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6 | * DRM framebuffer helper functions |
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7 | * |
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8 | * Permission to use, copy, modify, distribute, and sell this software and its |
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9 | * documentation for any purpose is hereby granted without fee, provided that |
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10 | * the above copyright notice appear in all copies and that both that copyright |
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11 | * notice and this permission notice appear in supporting documentation, and |
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12 | * that the name of the copyright holders not be used in advertising or |
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13 | * publicity pertaining to distribution of the software without specific, |
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14 | * written prior permission. The copyright holders make no representations |
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15 | * about the suitability of this software for any purpose. It is provided "as |
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16 | * is" without express or implied warranty. |
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17 | * |
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18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
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20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
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21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
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22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
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23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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24 | * OF THIS SOFTWARE. |
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25 | * |
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26 | * Authors: |
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27 | * Dave Airlie |
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28 | * Jesse Barnes |
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29 | */ |
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3192 | Serge | 30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
31 | |||
1430 | serge | 32 | #include |
1963 | serge | 33 | #include |
34 | #include |
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1179 | serge | 35 | #include |
3031 | serge | 36 | #include |
37 | #include |
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38 | #include |
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39 | #include |
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40 | #include |
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1179 | serge | 41 | |
1430 | serge | 42 | MODULE_AUTHOR("David Airlie, Jesse Barnes"); |
43 | MODULE_DESCRIPTION("DRM KMS helper"); |
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44 | MODULE_LICENSE("GPL and additional rights"); |
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1179 | serge | 45 | |
46 | static LIST_HEAD(kernel_fb_helper_list); |
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47 | |||
3192 | Serge | 48 | /** |
49 | * DOC: fbdev helpers |
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50 | * |
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51 | * The fb helper functions are useful to provide an fbdev on top of a drm kernel |
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52 | * mode setting driver. They can be used mostly independantely from the crtc |
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53 | * helper functions used by many drivers to implement the kernel mode setting |
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54 | * interfaces. |
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55 | */ |
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56 | |||
1963 | serge | 57 | /* simple single crtc case helper function */ |
58 | int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper) |
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1221 | serge | 59 | { |
1963 | serge | 60 | struct drm_device *dev = fb_helper->dev; |
61 | struct drm_connector *connector; |
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62 | int i; |
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1221 | serge | 63 | |
1963 | serge | 64 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
65 | struct drm_fb_helper_connector *fb_helper_connector; |
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66 | |||
67 | fb_helper_connector = kzalloc(sizeof(struct drm_fb_helper_connector), GFP_KERNEL); |
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68 | if (!fb_helper_connector) |
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69 | goto fail; |
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70 | |||
71 | fb_helper_connector->connector = connector; |
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72 | fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector; |
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73 | } |
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1221 | serge | 74 | return 0; |
1963 | serge | 75 | fail: |
76 | for (i = 0; i < fb_helper->connector_count; i++) { |
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77 | kfree(fb_helper->connector_info[i]); |
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78 | fb_helper->connector_info[i] = NULL; |
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79 | } |
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80 | fb_helper->connector_count = 0; |
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81 | return -ENOMEM; |
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1221 | serge | 82 | } |
1963 | serge | 83 | EXPORT_SYMBOL(drm_fb_helper_single_add_all_connectors); |
1221 | serge | 84 | |
1963 | serge | 85 | static void drm_fb_helper_save_lut_atomic(struct drm_crtc *crtc, struct drm_fb_helper *helper) |
1179 | serge | 86 | { |
1963 | serge | 87 | uint16_t *r_base, *g_base, *b_base; |
88 | int i; |
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1179 | serge | 89 | |
1963 | serge | 90 | r_base = crtc->gamma_store; |
91 | g_base = r_base + crtc->gamma_size; |
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92 | b_base = g_base + crtc->gamma_size; |
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1179 | serge | 93 | |
1963 | serge | 94 | for (i = 0; i < crtc->gamma_size; i++) |
95 | helper->funcs->gamma_get(crtc, &r_base[i], &g_base[i], &b_base[i], i); |
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1179 | serge | 96 | } |
97 | |||
1963 | serge | 98 | static void drm_fb_helper_restore_lut_atomic(struct drm_crtc *crtc) |
1179 | serge | 99 | { |
1963 | serge | 100 | uint16_t *r_base, *g_base, *b_base; |
101 | |||
3031 | serge | 102 | if (crtc->funcs->gamma_set == NULL) |
103 | return; |
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104 | |||
1963 | serge | 105 | r_base = crtc->gamma_store; |
106 | g_base = r_base + crtc->gamma_size; |
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107 | b_base = g_base + crtc->gamma_size; |
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108 | |||
109 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
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1179 | serge | 110 | } |
111 | |||
112 | |||
113 | |||
3031 | serge | 114 | static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode) |
1179 | serge | 115 | { |
116 | struct drm_fb_helper *fb_helper = info->par; |
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117 | struct drm_device *dev = fb_helper->dev; |
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118 | struct drm_crtc *crtc; |
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1963 | serge | 119 | struct drm_connector *connector; |
120 | int i, j; |
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1179 | serge | 121 | |
122 | /* |
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3031 | serge | 123 | * For each CRTC in this fb, turn the connectors on/off. |
1179 | serge | 124 | */ |
1963 | serge | 125 | mutex_lock(&dev->mode_config.mutex); |
1179 | serge | 126 | for (i = 0; i < fb_helper->crtc_count; i++) { |
1963 | serge | 127 | crtc = fb_helper->crtc_info[i].mode_set.crtc; |
1179 | serge | 128 | |
1963 | serge | 129 | if (!crtc->enabled) |
1179 | serge | 130 | continue; |
131 | |||
3031 | serge | 132 | /* Walk the connectors & encoders on this fb turning them on/off */ |
1963 | serge | 133 | for (j = 0; j < fb_helper->connector_count; j++) { |
134 | connector = fb_helper->connector_info[j]->connector; |
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3031 | serge | 135 | connector->funcs->dpms(connector, dpms_mode); |
3192 | Serge | 136 | drm_object_property_set_value(&connector->base, |
3031 | serge | 137 | dev->mode_config.dpms_property, dpms_mode); |
1963 | serge | 138 | } |
139 | } |
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1179 | serge | 140 | mutex_unlock(&dev->mode_config.mutex); |
141 | } |
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142 | |||
143 | int drm_fb_helper_blank(int blank, struct fb_info *info) |
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144 | { |
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145 | switch (blank) { |
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1321 | serge | 146 | /* Display: On; HSync: On, VSync: On */ |
1179 | serge | 147 | case FB_BLANK_UNBLANK: |
3031 | serge | 148 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_ON); |
1179 | serge | 149 | break; |
1321 | serge | 150 | /* Display: Off; HSync: On, VSync: On */ |
1179 | serge | 151 | case FB_BLANK_NORMAL: |
3031 | serge | 152 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY); |
1179 | serge | 153 | break; |
1321 | serge | 154 | /* Display: Off; HSync: Off, VSync: On */ |
1179 | serge | 155 | case FB_BLANK_HSYNC_SUSPEND: |
3031 | serge | 156 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_STANDBY); |
1179 | serge | 157 | break; |
1321 | serge | 158 | /* Display: Off; HSync: On, VSync: Off */ |
1179 | serge | 159 | case FB_BLANK_VSYNC_SUSPEND: |
3031 | serge | 160 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_SUSPEND); |
1179 | serge | 161 | break; |
1321 | serge | 162 | /* Display: Off; HSync: Off, VSync: Off */ |
1179 | serge | 163 | case FB_BLANK_POWERDOWN: |
3031 | serge | 164 | drm_fb_helper_dpms(info, DRM_MODE_DPMS_OFF); |
1179 | serge | 165 | break; |
166 | } |
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167 | return 0; |
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168 | } |
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169 | EXPORT_SYMBOL(drm_fb_helper_blank); |
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170 | |||
171 | static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper) |
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172 | { |
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173 | int i; |
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174 | |||
1963 | serge | 175 | for (i = 0; i < helper->connector_count; i++) |
176 | kfree(helper->connector_info[i]); |
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177 | kfree(helper->connector_info); |
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3031 | serge | 178 | for (i = 0; i < helper->crtc_count; i++) { |
1179 | serge | 179 | kfree(helper->crtc_info[i].mode_set.connectors); |
3031 | serge | 180 | if (helper->crtc_info[i].mode_set.mode) |
181 | drm_mode_destroy(helper->dev, helper->crtc_info[i].mode_set.mode); |
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182 | } |
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1179 | serge | 183 | kfree(helper->crtc_info); |
184 | } |
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185 | |||
1963 | serge | 186 | int drm_fb_helper_init(struct drm_device *dev, |
187 | struct drm_fb_helper *fb_helper, |
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188 | int crtc_count, int max_conn_count) |
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1179 | serge | 189 | { |
190 | struct drm_crtc *crtc; |
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191 | int i; |
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192 | |||
1963 | serge | 193 | fb_helper->dev = dev; |
194 | |||
195 | INIT_LIST_HEAD(&fb_helper->kernel_fb_list); |
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196 | |||
197 | fb_helper->crtc_info = kcalloc(crtc_count, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL); |
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198 | if (!fb_helper->crtc_info) |
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1179 | serge | 199 | return -ENOMEM; |
200 | |||
1963 | serge | 201 | fb_helper->crtc_count = crtc_count; |
202 | fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_connector *), GFP_KERNEL); |
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203 | if (!fb_helper->connector_info) { |
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204 | kfree(fb_helper->crtc_info); |
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205 | return -ENOMEM; |
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206 | } |
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207 | fb_helper->connector_count = 0; |
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1179 | serge | 208 | |
209 | for (i = 0; i < crtc_count; i++) { |
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1963 | serge | 210 | fb_helper->crtc_info[i].mode_set.connectors = |
1179 | serge | 211 | kcalloc(max_conn_count, |
212 | sizeof(struct drm_connector *), |
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213 | GFP_KERNEL); |
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214 | |||
3031 | serge | 215 | if (!fb_helper->crtc_info[i].mode_set.connectors) |
1179 | serge | 216 | goto out_free; |
1963 | serge | 217 | fb_helper->crtc_info[i].mode_set.num_connectors = 0; |
1179 | serge | 218 | } |
219 | |||
220 | i = 0; |
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221 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
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1963 | serge | 222 | fb_helper->crtc_info[i].mode_set.crtc = crtc; |
1179 | serge | 223 | i++; |
224 | } |
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3031 | serge | 225 | |
1179 | serge | 226 | return 0; |
227 | out_free: |
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1963 | serge | 228 | drm_fb_helper_crtc_free(fb_helper); |
1179 | serge | 229 | return -ENOMEM; |
230 | } |
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1963 | serge | 231 | EXPORT_SYMBOL(drm_fb_helper_init); |
1179 | serge | 232 | |
1246 | serge | 233 | static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green, |
1221 | serge | 234 | u16 blue, u16 regno, struct fb_info *info) |
235 | { |
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236 | struct drm_fb_helper *fb_helper = info->par; |
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237 | struct drm_framebuffer *fb = fb_helper->fb; |
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238 | int pindex; |
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239 | |||
1246 | serge | 240 | if (info->fix.visual == FB_VISUAL_TRUECOLOR) { |
241 | u32 *palette; |
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242 | u32 value; |
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243 | /* place color in psuedopalette */ |
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244 | if (regno > 16) |
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245 | return -EINVAL; |
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246 | palette = (u32 *)info->pseudo_palette; |
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247 | red >>= (16 - info->var.red.length); |
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248 | green >>= (16 - info->var.green.length); |
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249 | blue >>= (16 - info->var.blue.length); |
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250 | value = (red << info->var.red.offset) | |
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251 | (green << info->var.green.offset) | |
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252 | (blue << info->var.blue.offset); |
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1963 | serge | 253 | if (info->var.transp.length > 0) { |
254 | u32 mask = (1 << info->var.transp.length) - 1; |
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255 | mask <<= info->var.transp.offset; |
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256 | value |= mask; |
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257 | } |
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1246 | serge | 258 | palette[regno] = value; |
259 | return 0; |
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260 | } |
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261 | |||
1221 | serge | 262 | pindex = regno; |
263 | |||
264 | if (fb->bits_per_pixel == 16) { |
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265 | pindex = regno << 3; |
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266 | |||
267 | if (fb->depth == 16 && regno > 63) |
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1246 | serge | 268 | return -EINVAL; |
1221 | serge | 269 | if (fb->depth == 15 && regno > 31) |
1246 | serge | 270 | return -EINVAL; |
1221 | serge | 271 | |
272 | if (fb->depth == 16) { |
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273 | u16 r, g, b; |
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274 | int i; |
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275 | if (regno < 32) { |
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276 | for (i = 0; i < 8; i++) |
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277 | fb_helper->funcs->gamma_set(crtc, red, |
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278 | green, blue, pindex + i); |
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279 | } |
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280 | |||
281 | fb_helper->funcs->gamma_get(crtc, &r, |
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282 | &g, &b, |
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283 | pindex >> 1); |
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284 | |||
285 | for (i = 0; i < 4; i++) |
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286 | fb_helper->funcs->gamma_set(crtc, r, |
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287 | green, b, |
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288 | (pindex >> 1) + i); |
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289 | } |
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290 | } |
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291 | |||
292 | if (fb->depth != 16) |
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293 | fb_helper->funcs->gamma_set(crtc, red, green, blue, pindex); |
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1246 | serge | 294 | return 0; |
1221 | serge | 295 | } |
296 | |||
297 | int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info) |
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298 | { |
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299 | struct drm_fb_helper *fb_helper = info->par; |
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1963 | serge | 300 | struct drm_crtc_helper_funcs *crtc_funcs; |
1221 | serge | 301 | u16 *red, *green, *blue, *transp; |
302 | struct drm_crtc *crtc; |
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1963 | serge | 303 | int i, j, rc = 0; |
1221 | serge | 304 | int start; |
305 | |||
306 | for (i = 0; i < fb_helper->crtc_count; i++) { |
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1963 | serge | 307 | crtc = fb_helper->crtc_info[i].mode_set.crtc; |
308 | crtc_funcs = crtc->helper_private; |
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1221 | serge | 309 | |
310 | red = cmap->red; |
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311 | green = cmap->green; |
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312 | blue = cmap->blue; |
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313 | transp = cmap->transp; |
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314 | start = cmap->start; |
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315 | |||
1963 | serge | 316 | for (j = 0; j < cmap->len; j++) { |
1221 | serge | 317 | u16 hred, hgreen, hblue, htransp = 0xffff; |
318 | |||
319 | hred = *red++; |
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320 | hgreen = *green++; |
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321 | hblue = *blue++; |
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322 | |||
323 | if (transp) |
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324 | htransp = *transp++; |
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325 | |||
1246 | serge | 326 | rc = setcolreg(crtc, hred, hgreen, hblue, start++, info); |
327 | if (rc) |
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328 | return rc; |
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1221 | serge | 329 | } |
330 | crtc_funcs->load_lut(crtc); |
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331 | } |
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332 | return rc; |
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333 | } |
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334 | EXPORT_SYMBOL(drm_fb_helper_setcmap); |
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335 | |||
1179 | serge | 336 | int drm_fb_helper_check_var(struct fb_var_screeninfo *var, |
337 | struct fb_info *info) |
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338 | { |
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339 | struct drm_fb_helper *fb_helper = info->par; |
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340 | struct drm_framebuffer *fb = fb_helper->fb; |
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341 | int depth; |
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342 | |||
1963 | serge | 343 | if (var->pixclock != 0 || in_dbg_master()) |
1179 | serge | 344 | return -EINVAL; |
345 | |||
346 | /* Need to resize the fb object !!! */ |
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3031 | serge | 347 | if (var->bits_per_pixel > fb->bits_per_pixel || |
348 | var->xres > fb->width || var->yres > fb->height || |
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349 | var->xres_virtual > fb->width || var->yres_virtual > fb->height) { |
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1404 | serge | 350 | DRM_DEBUG("fb userspace requested width/height/bpp is greater than current fb " |
3031 | serge | 351 | "request %dx%d-%d (virtual %dx%d) > %dx%d-%d\n", |
352 | var->xres, var->yres, var->bits_per_pixel, |
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353 | var->xres_virtual, var->yres_virtual, |
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1404 | serge | 354 | fb->width, fb->height, fb->bits_per_pixel); |
1179 | serge | 355 | return -EINVAL; |
356 | } |
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357 | |||
358 | switch (var->bits_per_pixel) { |
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359 | case 16: |
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360 | depth = (var->green.length == 6) ? 16 : 15; |
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361 | break; |
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362 | case 32: |
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363 | depth = (var->transp.length > 0) ? 32 : 24; |
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364 | break; |
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365 | default: |
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366 | depth = var->bits_per_pixel; |
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367 | break; |
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368 | } |
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369 | |||
370 | switch (depth) { |
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371 | case 8: |
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372 | var->red.offset = 0; |
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373 | var->green.offset = 0; |
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374 | var->blue.offset = 0; |
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375 | var->red.length = 8; |
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376 | var->green.length = 8; |
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377 | var->blue.length = 8; |
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378 | var->transp.length = 0; |
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379 | var->transp.offset = 0; |
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380 | break; |
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381 | case 15: |
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382 | var->red.offset = 10; |
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383 | var->green.offset = 5; |
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384 | var->blue.offset = 0; |
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385 | var->red.length = 5; |
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386 | var->green.length = 5; |
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387 | var->blue.length = 5; |
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388 | var->transp.length = 1; |
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389 | var->transp.offset = 15; |
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390 | break; |
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391 | case 16: |
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392 | var->red.offset = 11; |
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393 | var->green.offset = 5; |
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394 | var->blue.offset = 0; |
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395 | var->red.length = 5; |
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396 | var->green.length = 6; |
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397 | var->blue.length = 5; |
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398 | var->transp.length = 0; |
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399 | var->transp.offset = 0; |
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400 | break; |
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401 | case 24: |
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402 | var->red.offset = 16; |
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403 | var->green.offset = 8; |
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404 | var->blue.offset = 0; |
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405 | var->red.length = 8; |
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406 | var->green.length = 8; |
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407 | var->blue.length = 8; |
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408 | var->transp.length = 0; |
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409 | var->transp.offset = 0; |
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410 | break; |
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411 | case 32: |
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412 | var->red.offset = 16; |
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413 | var->green.offset = 8; |
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414 | var->blue.offset = 0; |
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415 | var->red.length = 8; |
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416 | var->green.length = 8; |
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417 | var->blue.length = 8; |
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418 | var->transp.length = 8; |
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419 | var->transp.offset = 24; |
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420 | break; |
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421 | default: |
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422 | return -EINVAL; |
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423 | } |
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424 | return 0; |
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425 | } |
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426 | EXPORT_SYMBOL(drm_fb_helper_check_var); |
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427 | |||
428 | /* this will let fbcon do the mode init */ |
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429 | int drm_fb_helper_set_par(struct fb_info *info) |
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430 | { |
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431 | struct drm_fb_helper *fb_helper = info->par; |
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432 | struct drm_device *dev = fb_helper->dev; |
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433 | struct fb_var_screeninfo *var = &info->var; |
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434 | struct drm_crtc *crtc; |
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435 | int ret; |
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436 | int i; |
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437 | |||
1313 | serge | 438 | if (var->pixclock != 0) { |
1430 | serge | 439 | DRM_ERROR("PIXEL CLOCK SET\n"); |
1179 | serge | 440 | return -EINVAL; |
441 | } |
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442 | |||
1963 | serge | 443 | mutex_lock(&dev->mode_config.mutex); |
1179 | serge | 444 | for (i = 0; i < fb_helper->crtc_count; i++) { |
1963 | serge | 445 | crtc = fb_helper->crtc_info[i].mode_set.crtc; |
1268 | serge | 446 | ret = crtc->funcs->set_config(&fb_helper->crtc_info[i].mode_set); |
1963 | serge | 447 | if (ret) { |
1179 | serge | 448 | mutex_unlock(&dev->mode_config.mutex); |
449 | return ret; |
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450 | } |
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451 | } |
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1963 | serge | 452 | mutex_unlock(&dev->mode_config.mutex); |
453 | |||
454 | if (fb_helper->delayed_hotplug) { |
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455 | fb_helper->delayed_hotplug = false; |
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456 | // drm_fb_helper_hotplug_event(fb_helper); |
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457 | } |
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1179 | serge | 458 | return 0; |
459 | } |
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460 | EXPORT_SYMBOL(drm_fb_helper_set_par); |
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461 | |||
462 | int drm_fb_helper_pan_display(struct fb_var_screeninfo *var, |
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463 | struct fb_info *info) |
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464 | { |
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465 | struct drm_fb_helper *fb_helper = info->par; |
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466 | struct drm_device *dev = fb_helper->dev; |
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467 | struct drm_mode_set *modeset; |
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468 | struct drm_crtc *crtc; |
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469 | int ret = 0; |
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470 | int i; |
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471 | |||
1963 | serge | 472 | mutex_lock(&dev->mode_config.mutex); |
1179 | serge | 473 | for (i = 0; i < fb_helper->crtc_count; i++) { |
1963 | serge | 474 | crtc = fb_helper->crtc_info[i].mode_set.crtc; |
1179 | serge | 475 | |
476 | modeset = &fb_helper->crtc_info[i].mode_set; |
||
477 | |||
478 | modeset->x = var->xoffset; |
||
479 | modeset->y = var->yoffset; |
||
480 | |||
481 | if (modeset->num_connectors) { |
||
482 | ret = crtc->funcs->set_config(modeset); |
||
483 | if (!ret) { |
||
484 | info->var.xoffset = var->xoffset; |
||
485 | info->var.yoffset = var->yoffset; |
||
486 | } |
||
487 | } |
||
488 | } |
||
1963 | serge | 489 | mutex_unlock(&dev->mode_config.mutex); |
1179 | serge | 490 | return ret; |
491 | } |
||
492 | EXPORT_SYMBOL(drm_fb_helper_pan_display); |
||
493 | |||
1963 | serge | 494 | int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, |
495 | int preferred_bpp) |
||
1179 | serge | 496 | { |
497 | int new_fb = 0; |
||
498 | int crtc_count = 0; |
||
1963 | serge | 499 | int i; |
1179 | serge | 500 | struct fb_info *info; |
1963 | serge | 501 | struct drm_fb_helper_surface_size sizes; |
502 | int gamma_size = 0; |
||
1179 | serge | 503 | |
1963 | serge | 504 | memset(&sizes, 0, sizeof(struct drm_fb_helper_surface_size)); |
505 | sizes.surface_depth = 24; |
||
506 | sizes.surface_bpp = 32; |
||
507 | sizes.fb_width = (unsigned)-1; |
||
508 | sizes.fb_height = (unsigned)-1; |
||
1221 | serge | 509 | |
3031 | serge | 510 | /* if driver picks 8 or 16 by default use that |
511 | for both depth/bpp */ |
||
3192 | Serge | 512 | if (preferred_bpp != sizes.surface_bpp) |
3031 | serge | 513 | sizes.surface_depth = sizes.surface_bpp = preferred_bpp; |
3192 | Serge | 514 | |
3031 | serge | 515 | /* first up get a count of crtcs now in use and new min/maxes width/heights */ |
516 | for (i = 0; i < fb_helper->connector_count; i++) { |
||
517 | struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i]; |
||
518 | struct drm_cmdline_mode *cmdline_mode; |
||
519 | |||
520 | cmdline_mode = &fb_helper_conn->cmdline_mode; |
||
521 | |||
522 | if (cmdline_mode->bpp_specified) { |
||
523 | switch (cmdline_mode->bpp) { |
||
524 | case 8: |
||
525 | sizes.surface_depth = sizes.surface_bpp = 8; |
||
526 | break; |
||
527 | case 15: |
||
528 | sizes.surface_depth = 15; |
||
529 | sizes.surface_bpp = 16; |
||
530 | break; |
||
531 | case 16: |
||
532 | sizes.surface_depth = sizes.surface_bpp = 16; |
||
533 | break; |
||
534 | case 24: |
||
535 | sizes.surface_depth = sizes.surface_bpp = 24; |
||
536 | break; |
||
537 | case 32: |
||
1963 | serge | 538 | sizes.surface_depth = 24; |
539 | sizes.surface_bpp = 32; |
||
3031 | serge | 540 | break; |
541 | } |
||
542 | break; |
||
543 | } |
||
544 | } |
||
1221 | serge | 545 | |
1963 | serge | 546 | crtc_count = 0; |
547 | for (i = 0; i < fb_helper->crtc_count; i++) { |
||
548 | struct drm_display_mode *desired_mode; |
||
549 | desired_mode = fb_helper->crtc_info[i].desired_mode; |
||
1221 | serge | 550 | |
1963 | serge | 551 | if (desired_mode) { |
552 | if (gamma_size == 0) |
||
553 | gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size; |
||
554 | if (desired_mode->hdisplay < sizes.fb_width) |
||
555 | sizes.fb_width = desired_mode->hdisplay; |
||
556 | if (desired_mode->vdisplay < sizes.fb_height) |
||
557 | sizes.fb_height = desired_mode->vdisplay; |
||
558 | if (desired_mode->hdisplay > sizes.surface_width) |
||
559 | sizes.surface_width = desired_mode->hdisplay; |
||
560 | if (desired_mode->vdisplay > sizes.surface_height) |
||
561 | sizes.surface_height = desired_mode->vdisplay; |
||
1179 | serge | 562 | crtc_count++; |
563 | } |
||
564 | } |
||
565 | |||
1963 | serge | 566 | if (crtc_count == 0 || sizes.fb_width == -1 || sizes.fb_height == -1) { |
1179 | serge | 567 | /* hmm everyone went away - assume VGA cable just fell out |
568 | and will come back later. */ |
||
1963 | serge | 569 | DRM_INFO("Cannot find any crtc or sizes - going 1024x768\n"); |
570 | sizes.fb_width = sizes.surface_width = 1024; |
||
571 | sizes.fb_height = sizes.surface_height = 768; |
||
1179 | serge | 572 | } |
573 | |||
1963 | serge | 574 | /* push down into drivers */ |
575 | new_fb = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes); |
||
576 | if (new_fb < 0) |
||
577 | return new_fb; |
||
1179 | serge | 578 | |
1963 | serge | 579 | info = fb_helper->fbdev; |
1179 | serge | 580 | |
1963 | serge | 581 | /* set the fb pointer */ |
3192 | Serge | 582 | for (i = 0; i < fb_helper->crtc_count; i++) |
1963 | serge | 583 | fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb; |
1179 | serge | 584 | |
585 | if (new_fb) { |
||
1313 | serge | 586 | info->var.pixclock = 0; |
1963 | serge | 587 | |
3298 | Serge | 588 | // dev_info(fb_helper->dev->dev, "fb%d: %s frame buffer device\n", |
589 | // info->node, info->fix.id); |
||
1963 | serge | 590 | |
1179 | serge | 591 | } else { |
592 | drm_fb_helper_set_par(info); |
||
593 | } |
||
594 | |||
1963 | serge | 595 | |
596 | if (new_fb) |
||
597 | list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list); |
||
598 | |||
1179 | serge | 599 | return 0; |
600 | } |
||
601 | EXPORT_SYMBOL(drm_fb_helper_single_fb_probe); |
||
602 | |||
1221 | serge | 603 | void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch, |
604 | uint32_t depth) |
||
1179 | serge | 605 | { |
606 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
||
1221 | serge | 607 | info->fix.visual = depth == 8 ? FB_VISUAL_PSEUDOCOLOR : |
1246 | serge | 608 | FB_VISUAL_TRUECOLOR; |
1963 | serge | 609 | info->fix.mmio_start = 0; |
610 | info->fix.mmio_len = 0; |
||
1179 | serge | 611 | info->fix.type_aux = 0; |
612 | info->fix.xpanstep = 1; /* doing it in hw */ |
||
613 | info->fix.ypanstep = 1; /* doing it in hw */ |
||
614 | info->fix.ywrapstep = 0; |
||
615 | info->fix.accel = FB_ACCEL_NONE; |
||
616 | info->fix.type_aux = 0; |
||
617 | |||
618 | info->fix.line_length = pitch; |
||
619 | return; |
||
620 | } |
||
621 | EXPORT_SYMBOL(drm_fb_helper_fill_fix); |
||
622 | |||
1963 | serge | 623 | void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper, |
1179 | serge | 624 | uint32_t fb_width, uint32_t fb_height) |
625 | { |
||
1963 | serge | 626 | struct drm_framebuffer *fb = fb_helper->fb; |
627 | info->pseudo_palette = fb_helper->pseudo_palette; |
||
1179 | serge | 628 | info->var.xres_virtual = fb->width; |
629 | info->var.yres_virtual = fb->height; |
||
630 | info->var.bits_per_pixel = fb->bits_per_pixel; |
||
1963 | serge | 631 | info->var.accel_flags = FB_ACCELF_TEXT; |
1179 | serge | 632 | info->var.xoffset = 0; |
633 | info->var.yoffset = 0; |
||
634 | info->var.activate = FB_ACTIVATE_NOW; |
||
635 | info->var.height = -1; |
||
636 | info->var.width = -1; |
||
637 | |||
638 | switch (fb->depth) { |
||
639 | case 8: |
||
640 | info->var.red.offset = 0; |
||
641 | info->var.green.offset = 0; |
||
642 | info->var.blue.offset = 0; |
||
643 | info->var.red.length = 8; /* 8bit DAC */ |
||
644 | info->var.green.length = 8; |
||
645 | info->var.blue.length = 8; |
||
646 | info->var.transp.offset = 0; |
||
647 | info->var.transp.length = 0; |
||
648 | break; |
||
649 | case 15: |
||
650 | info->var.red.offset = 10; |
||
651 | info->var.green.offset = 5; |
||
652 | info->var.blue.offset = 0; |
||
653 | info->var.red.length = 5; |
||
654 | info->var.green.length = 5; |
||
655 | info->var.blue.length = 5; |
||
656 | info->var.transp.offset = 15; |
||
657 | info->var.transp.length = 1; |
||
658 | break; |
||
659 | case 16: |
||
660 | info->var.red.offset = 11; |
||
661 | info->var.green.offset = 5; |
||
662 | info->var.blue.offset = 0; |
||
663 | info->var.red.length = 5; |
||
664 | info->var.green.length = 6; |
||
665 | info->var.blue.length = 5; |
||
666 | info->var.transp.offset = 0; |
||
667 | break; |
||
668 | case 24: |
||
669 | info->var.red.offset = 16; |
||
670 | info->var.green.offset = 8; |
||
671 | info->var.blue.offset = 0; |
||
672 | info->var.red.length = 8; |
||
673 | info->var.green.length = 8; |
||
674 | info->var.blue.length = 8; |
||
675 | info->var.transp.offset = 0; |
||
676 | info->var.transp.length = 0; |
||
677 | break; |
||
678 | case 32: |
||
679 | info->var.red.offset = 16; |
||
680 | info->var.green.offset = 8; |
||
681 | info->var.blue.offset = 0; |
||
682 | info->var.red.length = 8; |
||
683 | info->var.green.length = 8; |
||
684 | info->var.blue.length = 8; |
||
685 | info->var.transp.offset = 24; |
||
686 | info->var.transp.length = 8; |
||
687 | break; |
||
688 | default: |
||
689 | break; |
||
690 | } |
||
691 | |||
692 | info->var.xres = fb_width; |
||
693 | info->var.yres = fb_height; |
||
694 | } |
||
695 | EXPORT_SYMBOL(drm_fb_helper_fill_var); |
||
1963 | serge | 696 | |
697 | static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper, |
||
698 | uint32_t maxX, |
||
699 | uint32_t maxY) |
||
700 | { |
||
701 | struct drm_connector *connector; |
||
702 | int count = 0; |
||
703 | int i; |
||
704 | |||
705 | for (i = 0; i < fb_helper->connector_count; i++) { |
||
706 | connector = fb_helper->connector_info[i]->connector; |
||
707 | count += connector->funcs->fill_modes(connector, maxX, maxY); |
||
708 | } |
||
709 | |||
710 | return count; |
||
711 | } |
||
712 | |||
713 | static struct drm_display_mode *drm_has_preferred_mode(struct drm_fb_helper_connector *fb_connector, int width, int height) |
||
714 | { |
||
715 | struct drm_display_mode *mode; |
||
716 | |||
717 | list_for_each_entry(mode, &fb_connector->connector->modes, head) { |
||
718 | if (drm_mode_width(mode) > width || |
||
719 | drm_mode_height(mode) > height) |
||
720 | continue; |
||
721 | if (mode->type & DRM_MODE_TYPE_PREFERRED) |
||
722 | return mode; |
||
723 | } |
||
724 | return NULL; |
||
725 | } |
||
726 | |||
727 | static bool drm_has_cmdline_mode(struct drm_fb_helper_connector *fb_connector) |
||
728 | { |
||
729 | struct drm_cmdline_mode *cmdline_mode; |
||
730 | cmdline_mode = &fb_connector->cmdline_mode; |
||
731 | return cmdline_mode->specified; |
||
732 | } |
||
733 | |||
734 | |||
735 | static bool drm_connector_enabled(struct drm_connector *connector, bool strict) |
||
736 | { |
||
737 | bool enable; |
||
738 | |||
3192 | Serge | 739 | if (strict) |
1963 | serge | 740 | enable = connector->status == connector_status_connected; |
3192 | Serge | 741 | else |
1963 | serge | 742 | enable = connector->status != connector_status_disconnected; |
3192 | Serge | 743 | |
1963 | serge | 744 | return enable; |
745 | } |
||
746 | |||
747 | static void drm_enable_connectors(struct drm_fb_helper *fb_helper, |
||
748 | bool *enabled) |
||
749 | { |
||
750 | bool any_enabled = false; |
||
751 | struct drm_connector *connector; |
||
752 | int i = 0; |
||
753 | |||
754 | for (i = 0; i < fb_helper->connector_count; i++) { |
||
755 | connector = fb_helper->connector_info[i]->connector; |
||
756 | enabled[i] = drm_connector_enabled(connector, true); |
||
757 | DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id, |
||
758 | enabled[i] ? "yes" : "no"); |
||
759 | any_enabled |= enabled[i]; |
||
760 | } |
||
761 | |||
762 | if (any_enabled) |
||
763 | return; |
||
764 | |||
765 | for (i = 0; i < fb_helper->connector_count; i++) { |
||
766 | connector = fb_helper->connector_info[i]->connector; |
||
767 | enabled[i] = drm_connector_enabled(connector, false); |
||
768 | } |
||
769 | } |
||
770 | |||
771 | |||
772 | static bool drm_target_preferred(struct drm_fb_helper *fb_helper, |
||
773 | struct drm_display_mode **modes, |
||
774 | bool *enabled, int width, int height) |
||
775 | { |
||
776 | struct drm_fb_helper_connector *fb_helper_conn; |
||
777 | int i; |
||
778 | |||
779 | for (i = 0; i < fb_helper->connector_count; i++) { |
||
780 | fb_helper_conn = fb_helper->connector_info[i]; |
||
781 | |||
782 | if (enabled[i] == false) |
||
783 | continue; |
||
784 | |||
785 | DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n", |
||
786 | fb_helper_conn->connector->base.id); |
||
787 | |||
788 | /* got for command line mode first */ |
||
789 | // modes[i] = drm_pick_cmdline_mode(fb_helper_conn, width, height); |
||
790 | |||
791 | modes[i] = NULL; |
||
792 | |||
793 | if (!modes[i]) { |
||
794 | DRM_DEBUG_KMS("looking for preferred mode on connector %d\n", |
||
795 | fb_helper_conn->connector->base.id); |
||
796 | modes[i] = drm_has_preferred_mode(fb_helper_conn, width, height); |
||
797 | } |
||
798 | /* No preferred modes, pick one off the list */ |
||
799 | if (!modes[i] && !list_empty(&fb_helper_conn->connector->modes)) { |
||
800 | list_for_each_entry(modes[i], &fb_helper_conn->connector->modes, head) |
||
801 | break; |
||
802 | } |
||
803 | DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name : |
||
804 | "none"); |
||
805 | } |
||
806 | return true; |
||
807 | } |
||
808 | |||
809 | static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, |
||
810 | struct drm_fb_helper_crtc **best_crtcs, |
||
811 | struct drm_display_mode **modes, |
||
812 | int n, int width, int height) |
||
813 | { |
||
814 | int c, o; |
||
815 | struct drm_device *dev = fb_helper->dev; |
||
816 | struct drm_connector *connector; |
||
817 | struct drm_connector_helper_funcs *connector_funcs; |
||
818 | struct drm_encoder *encoder; |
||
819 | struct drm_fb_helper_crtc *best_crtc; |
||
820 | int my_score, best_score, score; |
||
821 | struct drm_fb_helper_crtc **crtcs, *crtc; |
||
822 | struct drm_fb_helper_connector *fb_helper_conn; |
||
823 | |||
824 | if (n == fb_helper->connector_count) |
||
825 | return 0; |
||
826 | |||
827 | fb_helper_conn = fb_helper->connector_info[n]; |
||
828 | connector = fb_helper_conn->connector; |
||
829 | |||
830 | best_crtcs[n] = NULL; |
||
831 | best_crtc = NULL; |
||
832 | best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height); |
||
833 | if (modes[n] == NULL) |
||
834 | return best_score; |
||
835 | |||
836 | crtcs = kzalloc(dev->mode_config.num_connector * |
||
837 | sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL); |
||
838 | if (!crtcs) |
||
839 | return best_score; |
||
840 | |||
841 | my_score = 1; |
||
842 | if (connector->status == connector_status_connected) |
||
843 | my_score++; |
||
844 | if (drm_has_cmdline_mode(fb_helper_conn)) |
||
845 | my_score++; |
||
846 | if (drm_has_preferred_mode(fb_helper_conn, width, height)) |
||
847 | my_score++; |
||
848 | |||
849 | connector_funcs = connector->helper_private; |
||
850 | encoder = connector_funcs->best_encoder(connector); |
||
851 | if (!encoder) |
||
852 | goto out; |
||
853 | |||
854 | /* select a crtc for this connector and then attempt to configure |
||
855 | remaining connectors */ |
||
856 | for (c = 0; c < fb_helper->crtc_count; c++) { |
||
857 | crtc = &fb_helper->crtc_info[c]; |
||
858 | |||
3192 | Serge | 859 | if ((encoder->possible_crtcs & (1 << c)) == 0) |
1963 | serge | 860 | continue; |
861 | |||
862 | for (o = 0; o < n; o++) |
||
863 | if (best_crtcs[o] == crtc) |
||
864 | break; |
||
865 | |||
866 | if (o < n) { |
||
867 | /* ignore cloning unless only a single crtc */ |
||
868 | if (fb_helper->crtc_count > 1) |
||
869 | continue; |
||
870 | |||
871 | if (!drm_mode_equal(modes[o], modes[n])) |
||
872 | continue; |
||
873 | } |
||
874 | |||
875 | crtcs[n] = crtc; |
||
876 | memcpy(crtcs, best_crtcs, n * sizeof(struct drm_fb_helper_crtc *)); |
||
877 | score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1, |
||
878 | width, height); |
||
879 | if (score > best_score) { |
||
880 | best_crtc = crtc; |
||
881 | best_score = score; |
||
882 | memcpy(best_crtcs, crtcs, |
||
883 | dev->mode_config.num_connector * |
||
884 | sizeof(struct drm_fb_helper_crtc *)); |
||
885 | } |
||
886 | } |
||
887 | out: |
||
888 | kfree(crtcs); |
||
889 | return best_score; |
||
890 | } |
||
891 | |||
892 | static void drm_setup_crtcs(struct drm_fb_helper *fb_helper) |
||
893 | { |
||
894 | struct drm_device *dev = fb_helper->dev; |
||
895 | struct drm_fb_helper_crtc **crtcs; |
||
896 | struct drm_display_mode **modes; |
||
897 | struct drm_mode_set *modeset; |
||
898 | bool *enabled; |
||
899 | int width, height; |
||
900 | int i, ret; |
||
901 | |||
902 | DRM_DEBUG_KMS("\n"); |
||
903 | |||
904 | width = dev->mode_config.max_width; |
||
905 | height = dev->mode_config.max_height; |
||
906 | |||
907 | crtcs = kcalloc(dev->mode_config.num_connector, |
||
908 | sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL); |
||
909 | modes = kcalloc(dev->mode_config.num_connector, |
||
910 | sizeof(struct drm_display_mode *), GFP_KERNEL); |
||
911 | enabled = kcalloc(dev->mode_config.num_connector, |
||
912 | sizeof(bool), GFP_KERNEL); |
||
3192 | Serge | 913 | if (!crtcs || !modes || !enabled) { |
914 | DRM_ERROR("Memory allocation failed\n"); |
||
915 | goto out; |
||
916 | } |
||
1963 | serge | 917 | |
3192 | Serge | 918 | |
1963 | serge | 919 | drm_enable_connectors(fb_helper, enabled); |
920 | |||
921 | //ret = drm_target_cloned(fb_helper, modes, enabled, width, height); |
||
922 | |||
923 | ret = 0; |
||
924 | |||
925 | if (!ret) { |
||
926 | ret = drm_target_preferred(fb_helper, modes, enabled, width, height); |
||
927 | if (!ret) |
||
928 | DRM_ERROR("Unable to find initial modes\n"); |
||
929 | } |
||
930 | |||
931 | DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n", width, height); |
||
932 | |||
933 | drm_pick_crtcs(fb_helper, crtcs, modes, 0, width, height); |
||
934 | |||
935 | /* need to set the modesets up here for use later */ |
||
936 | /* fill out the connector<->crtc mappings into the modesets */ |
||
937 | for (i = 0; i < fb_helper->crtc_count; i++) { |
||
938 | modeset = &fb_helper->crtc_info[i].mode_set; |
||
939 | modeset->num_connectors = 0; |
||
940 | } |
||
941 | |||
942 | for (i = 0; i < fb_helper->connector_count; i++) { |
||
943 | struct drm_display_mode *mode = modes[i]; |
||
944 | struct drm_fb_helper_crtc *fb_crtc = crtcs[i]; |
||
945 | modeset = &fb_crtc->mode_set; |
||
946 | |||
947 | if (mode && fb_crtc) { |
||
948 | DRM_DEBUG_KMS("desired mode %s set on crtc %d\n", |
||
949 | mode->name, fb_crtc->mode_set.crtc->base.id); |
||
950 | fb_crtc->desired_mode = mode; |
||
951 | if (modeset->mode) |
||
952 | drm_mode_destroy(dev, modeset->mode); |
||
953 | modeset->mode = drm_mode_duplicate(dev, |
||
954 | fb_crtc->desired_mode); |
||
955 | modeset->connectors[modeset->num_connectors++] = fb_helper->connector_info[i]->connector; |
||
956 | } |
||
957 | } |
||
958 | |||
3192 | Serge | 959 | out: |
1963 | serge | 960 | kfree(crtcs); |
961 | kfree(modes); |
||
962 | kfree(enabled); |
||
963 | } |
||
964 | |||
965 | /** |
||
966 | * drm_helper_initial_config - setup a sane initial connector configuration |
||
3192 | Serge | 967 | * @fb_helper: fb_helper device struct |
968 | * @bpp_sel: bpp value to use for the framebuffer configuration |
||
1963 | serge | 969 | * |
970 | * LOCKING: |
||
3192 | Serge | 971 | * Called at init time by the driver to set up the @fb_helper initial |
972 | * configuration, must take the mode config lock. |
||
1963 | serge | 973 | * |
3192 | Serge | 974 | * Scans the CRTCs and connectors and tries to put together an initial setup. |
1963 | serge | 975 | * At the moment, this is a cloned configuration across all heads with |
976 | * a new framebuffer object as the backing store. |
||
977 | * |
||
978 | * RETURNS: |
||
979 | * Zero if everything went ok, nonzero otherwise. |
||
980 | */ |
||
981 | bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel) |
||
982 | { |
||
983 | struct drm_device *dev = fb_helper->dev; |
||
984 | int count = 0; |
||
985 | |||
986 | /* disable all the possible outputs/crtcs before entering KMS mode */ |
||
3031 | serge | 987 | drm_helper_disable_unused_functions(fb_helper->dev); |
1963 | serge | 988 | |
989 | // drm_fb_helper_parse_command_line(fb_helper); |
||
990 | |||
991 | count = drm_fb_helper_probe_connector_modes(fb_helper, |
||
992 | dev->mode_config.max_width, |
||
993 | dev->mode_config.max_height); |
||
994 | /* |
||
995 | * we shouldn't end up with no modes here. |
||
996 | */ |
||
3192 | Serge | 997 | if (count == 0) |
998 | dev_info(fb_helper->dev->dev, "No connectors reported connected with modes\n"); |
||
999 | |||
1000 | drm_setup_crtcs(fb_helper); |
||
1001 | |||
3243 | Serge | 1002 | return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); |
3192 | Serge | 1003 | } |
1004 | EXPORT_SYMBOL(drm_fb_helper_initial_config); |
||
1005 | |||
1006 | #if 0 |
||
1007 | /** |
||
1008 | * drm_fb_helper_hotplug_event - respond to a hotplug notification by |
||
1009 | * probing all the outputs attached to the fb |
||
1010 | * @fb_helper: the drm_fb_helper |
||
1011 | * |
||
1012 | * LOCKING: |
||
1013 | * Called at runtime, must take mode config lock. |
||
1014 | * |
||
1015 | * Scan the connectors attached to the fb_helper and try to put together a |
||
1016 | * setup after *notification of a change in output configuration. |
||
1017 | * |
||
1018 | * RETURNS: |
||
1019 | * 0 on success and a non-zero error code otherwise. |
||
1020 | */ |
||
1021 | int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper) |
||
1022 | { |
||
1023 | struct drm_device *dev = fb_helper->dev; |
||
1024 | int count = 0; |
||
1025 | u32 max_width, max_height, bpp_sel; |
||
1026 | int bound = 0, crtcs_bound = 0; |
||
1027 | struct drm_crtc *crtc; |
||
1028 | |||
1029 | if (!fb_helper->fb) |
||
1030 | return 0; |
||
1031 | |||
1032 | mutex_lock(&dev->mode_config.mutex); |
||
1033 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
||
1034 | if (crtc->fb) |
||
1035 | crtcs_bound++; |
||
1036 | if (crtc->fb == fb_helper->fb) |
||
1037 | bound++; |
||
1963 | serge | 1038 | } |
3192 | Serge | 1039 | |
1040 | if (bound < crtcs_bound) { |
||
1041 | fb_helper->delayed_hotplug = true; |
||
1042 | mutex_unlock(&dev->mode_config.mutex); |
||
1043 | return 0; |
||
1044 | } |
||
1045 | DRM_DEBUG_KMS("\n"); |
||
1046 | |||
1047 | max_width = fb_helper->fb->width; |
||
1048 | max_height = fb_helper->fb->height; |
||
1049 | bpp_sel = fb_helper->fb->bits_per_pixel; |
||
1050 | |||
1051 | count = drm_fb_helper_probe_connector_modes(fb_helper, max_width, |
||
1052 | max_height); |
||
1963 | serge | 1053 | drm_setup_crtcs(fb_helper); |
3192 | Serge | 1054 | mutex_unlock(&dev->mode_config.mutex); |
1963 | serge | 1055 | |
1056 | return drm_fb_helper_single_fb_probe(fb_helper, bpp_sel); |
||
1057 | } |
||
3192 | Serge | 1058 | EXPORT_SYMBOL(drm_fb_helper_hotplug_event); |
1059 | #endif>>>->>>><>>>>>>>>>>>>>>>>>>>><>=><=>><>><>><>><>>>>>>>> |
||
1060 |