1 /* 2 * Copyright 2009 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Author: Ben Skeggs 23 */ 24 25 #include <drm/drmP.h> 26 #include <drm/drm_crtc_helper.h> 27 28 #include "nouveau_drm.h" 29 #include "nouveau_reg.h" 30 #include "hw.h" 31 #include "nouveau_encoder.h" 32 #include "nouveau_connector.h" 33 34 int 35 nv04_display_create(struct drm_device *dev) 36 { 37 struct nouveau_drm *drm = nouveau_drm(dev); 38 struct nvkm_i2c *i2c = nvxx_i2c(&drm->device); 39 struct dcb_table *dcb = &drm->vbios.dcb; 40 struct drm_connector *connector, *ct; 41 struct drm_encoder *encoder; 42 struct drm_crtc *crtc; 43 struct nv04_display *disp; 44 int i, ret; 45 46 disp = kzalloc(sizeof(*disp), GFP_KERNEL); 47 if (!disp) 48 return -ENOMEM; 49 50 nvif_object_map(&drm->device.object); 51 52 nouveau_display(dev)->priv = disp; 53 nouveau_display(dev)->dtor = nv04_display_destroy; 54 nouveau_display(dev)->init = nv04_display_init; 55 nouveau_display(dev)->fini = nv04_display_fini; 56 57 nouveau_hw_save_vga_fonts(dev, 1); 58 59 nv04_crtc_create(dev, 0); 60 if (nv_two_heads(dev)) 61 nv04_crtc_create(dev, 1); 62 63 for (i = 0; i < dcb->entries; i++) { 64 struct dcb_output *dcbent = &dcb->entry[i]; 65 66 connector = nouveau_connector_create(dev, dcbent->connector); 67 if (IS_ERR(connector)) 68 continue; 69 70 switch (dcbent->type) { 71 case DCB_OUTPUT_ANALOG: 72 ret = nv04_dac_create(connector, dcbent); 73 break; 74 case DCB_OUTPUT_LVDS: 75 case DCB_OUTPUT_TMDS: 76 ret = nv04_dfp_create(connector, dcbent); 77 break; 78 case DCB_OUTPUT_TV: 79 if (dcbent->location == DCB_LOC_ON_CHIP) 80 ret = nv17_tv_create(connector, dcbent); 81 else 82 ret = nv04_tv_create(connector, dcbent); 83 break; 84 default: 85 NV_WARN(drm, "DCB type %d not known\n", dcbent->type); 86 continue; 87 } 88 89 if (ret) 90 continue; 91 } 92 93 list_for_each_entry_safe(connector, ct, 94 &dev->mode_config.connector_list, head) { 95 if (!connector->encoder_ids[0]) { 96 NV_WARN(drm, "%s has no encoders, removing\n", 97 connector->name); 98 connector->funcs->destroy(connector); 99 } 100 } 101 102 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 103 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 104 struct nvkm_i2c_bus *bus = 105 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index); 106 nv_encoder->i2c = bus ? &bus->i2c : NULL; 107 } 108 109 /* Save previous state */ 110 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 111 crtc->funcs->save(crtc); 112 113 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 114 const struct drm_encoder_helper_funcs *func = encoder->helper_private; 115 116 func->save(encoder); 117 } 118 119 nouveau_overlay_init(dev); 120 121 return 0; 122 } 123 124 void 125 nv04_display_destroy(struct drm_device *dev) 126 { 127 struct nv04_display *disp = nv04_display(dev); 128 struct nouveau_drm *drm = nouveau_drm(dev); 129 struct drm_encoder *encoder; 130 struct drm_crtc *crtc; 131 132 /* Turn every CRTC off. */ 133 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 134 struct drm_mode_set modeset = { 135 .crtc = crtc, 136 }; 137 138 drm_mode_set_config_internal(&modeset); 139 } 140 141 /* Restore state */ 142 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 143 const struct drm_encoder_helper_funcs *func = encoder->helper_private; 144 145 func->restore(encoder); 146 } 147 148 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 149 crtc->funcs->restore(crtc); 150 151 nouveau_hw_save_vga_fonts(dev, 0); 152 153 nouveau_display(dev)->priv = NULL; 154 kfree(disp); 155 156 nvif_object_unmap(&drm->device.object); 157 } 158 159 int 160 nv04_display_init(struct drm_device *dev) 161 { 162 struct drm_encoder *encoder; 163 struct drm_crtc *crtc; 164 165 /* meh.. modeset apparently doesn't setup all the regs and depends 166 * on pre-existing state, for now load the state of the card *before* 167 * nouveau was loaded, and then do a modeset. 168 * 169 * best thing to do probably is to make save/restore routines not 170 * save/restore "pre-load" state, but more general so we can save 171 * on suspend too. 172 */ 173 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 174 const struct drm_encoder_helper_funcs *func = encoder->helper_private; 175 176 func->restore(encoder); 177 } 178 179 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 180 crtc->funcs->restore(crtc); 181 182 return 0; 183 } 184 185 void 186 nv04_display_fini(struct drm_device *dev) 187 { 188 /* disable vblank interrupts */ 189 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0); 190 if (nv_two_heads(dev)) 191 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); 192 } 193