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_drv.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 nouveau_encoder *nv_encoder; 43 struct nouveau_crtc *crtc; 44 struct nv04_display *disp; 45 int i, ret; 46 47 disp = kzalloc(sizeof(*disp), GFP_KERNEL); 48 if (!disp) 49 return -ENOMEM; 50 51 nvif_object_map(&drm->device.object); 52 53 nouveau_display(dev)->priv = disp; 54 nouveau_display(dev)->dtor = nv04_display_destroy; 55 nouveau_display(dev)->init = nv04_display_init; 56 nouveau_display(dev)->fini = nv04_display_fini; 57 58 nouveau_hw_save_vga_fonts(dev, 1); 59 60 nv04_crtc_create(dev, 0); 61 if (nv_two_heads(dev)) 62 nv04_crtc_create(dev, 1); 63 64 for (i = 0; i < dcb->entries; i++) { 65 struct dcb_output *dcbent = &dcb->entry[i]; 66 67 connector = nouveau_connector_create(dev, dcbent->connector); 68 if (IS_ERR(connector)) 69 continue; 70 71 switch (dcbent->type) { 72 case DCB_OUTPUT_ANALOG: 73 ret = nv04_dac_create(connector, dcbent); 74 break; 75 case DCB_OUTPUT_LVDS: 76 case DCB_OUTPUT_TMDS: 77 ret = nv04_dfp_create(connector, dcbent); 78 break; 79 case DCB_OUTPUT_TV: 80 if (dcbent->location == DCB_LOC_ON_CHIP) 81 ret = nv17_tv_create(connector, dcbent); 82 else 83 ret = nv04_tv_create(connector, dcbent); 84 break; 85 default: 86 NV_WARN(drm, "DCB type %d not known\n", dcbent->type); 87 continue; 88 } 89 90 if (ret) 91 continue; 92 } 93 94 list_for_each_entry_safe(connector, ct, 95 &dev->mode_config.connector_list, head) { 96 if (!connector->encoder_ids[0]) { 97 NV_WARN(drm, "%s has no encoders, removing\n", 98 connector->name); 99 connector->funcs->destroy(connector); 100 } 101 } 102 103 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 104 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 105 struct nvkm_i2c_bus *bus = 106 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index); 107 nv_encoder->i2c = bus ? &bus->i2c : NULL; 108 } 109 110 /* Save previous state */ 111 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) 112 crtc->save(&crtc->base); 113 114 list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head) 115 nv_encoder->enc_save(&nv_encoder->base.base); 116 117 nouveau_overlay_init(dev); 118 119 return 0; 120 } 121 122 void 123 nv04_display_destroy(struct drm_device *dev) 124 { 125 struct nv04_display *disp = nv04_display(dev); 126 struct nouveau_drm *drm = nouveau_drm(dev); 127 struct nouveau_encoder *encoder; 128 struct drm_crtc *crtc; 129 struct nouveau_crtc *nv_crtc; 130 131 /* Turn every CRTC off. */ 132 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 133 struct drm_mode_set modeset = { 134 .crtc = crtc, 135 }; 136 137 drm_mode_set_config_internal(&modeset); 138 } 139 140 /* Restore state */ 141 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 142 encoder->enc_restore(&encoder->base.base); 143 144 list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head) 145 nv_crtc->restore(&nv_crtc->base); 146 147 nouveau_hw_save_vga_fonts(dev, 0); 148 149 nouveau_display(dev)->priv = NULL; 150 kfree(disp); 151 152 nvif_object_unmap(&drm->device.object); 153 } 154 155 int 156 nv04_display_init(struct drm_device *dev) 157 { 158 struct nouveau_encoder *encoder; 159 struct nouveau_crtc *crtc; 160 161 /* meh.. modeset apparently doesn't setup all the regs and depends 162 * on pre-existing state, for now load the state of the card *before* 163 * nouveau was loaded, and then do a modeset. 164 * 165 * best thing to do probably is to make save/restore routines not 166 * save/restore "pre-load" state, but more general so we can save 167 * on suspend too. 168 */ 169 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) 170 crtc->save(&crtc->base); 171 172 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 173 encoder->enc_save(&encoder->base.base); 174 175 return 0; 176 } 177 178 void 179 nv04_display_fini(struct drm_device *dev) 180 { 181 /* disable vblank interrupts */ 182 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0); 183 if (nv_two_heads(dev)) 184 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); 185 } 186