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 <core/object.h> 26 #include <core/class.h> 27 28 #include <drm/drmP.h> 29 #include <drm/drm_crtc_helper.h> 30 31 #include "nouveau_drm.h" 32 #include "nouveau_reg.h" 33 #include "hw.h" 34 #include "nouveau_encoder.h" 35 #include "nouveau_connector.h" 36 37 #include <subdev/i2c.h> 38 39 int 40 nv04_display_early_init(struct drm_device *dev) 41 { 42 /* ensure vblank interrupts are off, they can't be enabled until 43 * drm_vblank has been initialised 44 */ 45 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0); 46 if (nv_two_heads(dev)) 47 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); 48 49 return 0; 50 } 51 52 void 53 nv04_display_late_takedown(struct drm_device *dev) 54 { 55 } 56 57 int 58 nv04_display_create(struct drm_device *dev) 59 { 60 struct nouveau_drm *drm = nouveau_drm(dev); 61 struct nouveau_i2c *i2c = nouveau_i2c(drm->device); 62 struct dcb_table *dcb = &drm->vbios.dcb; 63 struct drm_connector *connector, *ct; 64 struct drm_encoder *encoder; 65 struct drm_crtc *crtc; 66 struct nv04_display *disp; 67 int i, ret; 68 69 disp = kzalloc(sizeof(*disp), GFP_KERNEL); 70 if (!disp) 71 return -ENOMEM; 72 73 nouveau_display(dev)->priv = disp; 74 nouveau_display(dev)->dtor = nv04_display_destroy; 75 nouveau_display(dev)->init = nv04_display_init; 76 nouveau_display(dev)->fini = nv04_display_fini; 77 78 nouveau_hw_save_vga_fonts(dev, 1); 79 80 ret = nouveau_object_new(nv_object(drm), NVDRM_DEVICE, 0xd1500000, 81 NV04_DISP_CLASS, NULL, 0, &disp->core); 82 if (ret) 83 return ret; 84 85 nv04_crtc_create(dev, 0); 86 if (nv_two_heads(dev)) 87 nv04_crtc_create(dev, 1); 88 89 for (i = 0; i < dcb->entries; i++) { 90 struct dcb_output *dcbent = &dcb->entry[i]; 91 92 connector = nouveau_connector_create(dev, dcbent->connector); 93 if (IS_ERR(connector)) 94 continue; 95 96 switch (dcbent->type) { 97 case DCB_OUTPUT_ANALOG: 98 ret = nv04_dac_create(connector, dcbent); 99 break; 100 case DCB_OUTPUT_LVDS: 101 case DCB_OUTPUT_TMDS: 102 ret = nv04_dfp_create(connector, dcbent); 103 break; 104 case DCB_OUTPUT_TV: 105 if (dcbent->location == DCB_LOC_ON_CHIP) 106 ret = nv17_tv_create(connector, dcbent); 107 else 108 ret = nv04_tv_create(connector, dcbent); 109 break; 110 default: 111 NV_WARN(drm, "DCB type %d not known\n", dcbent->type); 112 continue; 113 } 114 115 if (ret) 116 continue; 117 } 118 119 list_for_each_entry_safe(connector, ct, 120 &dev->mode_config.connector_list, head) { 121 if (!connector->encoder_ids[0]) { 122 NV_WARN(drm, "%s has no encoders, removing\n", 123 drm_get_connector_name(connector)); 124 connector->funcs->destroy(connector); 125 } 126 } 127 128 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 129 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 130 nv_encoder->i2c = i2c->find(i2c, nv_encoder->dcb->i2c_index); 131 } 132 133 /* Save previous state */ 134 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 135 crtc->funcs->save(crtc); 136 137 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 138 struct drm_encoder_helper_funcs *func = encoder->helper_private; 139 140 func->save(encoder); 141 } 142 143 return 0; 144 } 145 146 void 147 nv04_display_destroy(struct drm_device *dev) 148 { 149 struct nv04_display *disp = nv04_display(dev); 150 struct drm_encoder *encoder; 151 struct drm_crtc *crtc; 152 153 /* Turn every CRTC off. */ 154 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 155 struct drm_mode_set modeset = { 156 .crtc = crtc, 157 }; 158 159 drm_mode_set_config_internal(&modeset); 160 } 161 162 /* Restore state */ 163 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 164 struct drm_encoder_helper_funcs *func = encoder->helper_private; 165 166 func->restore(encoder); 167 } 168 169 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 170 crtc->funcs->restore(crtc); 171 172 nouveau_hw_save_vga_fonts(dev, 0); 173 174 nouveau_display(dev)->priv = NULL; 175 kfree(disp); 176 } 177 178 int 179 nv04_display_init(struct drm_device *dev) 180 { 181 struct drm_encoder *encoder; 182 struct drm_crtc *crtc; 183 184 /* meh.. modeset apparently doesn't setup all the regs and depends 185 * on pre-existing state, for now load the state of the card *before* 186 * nouveau was loaded, and then do a modeset. 187 * 188 * best thing to do probably is to make save/restore routines not 189 * save/restore "pre-load" state, but more general so we can save 190 * on suspend too. 191 */ 192 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 193 struct drm_encoder_helper_funcs *func = encoder->helper_private; 194 195 func->restore(encoder); 196 } 197 198 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 199 crtc->funcs->restore(crtc); 200 201 return 0; 202 } 203 204 void 205 nv04_display_fini(struct drm_device *dev) 206 { 207 /* disable vblank interrupts */ 208 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0); 209 if (nv_two_heads(dev)) 210 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); 211 } 212