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->client.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->client.device.object, NULL, 0); 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 /* Pre-nv50 doesn't support atomic, so don't expose the ioctls */ 59 dev->driver->driver_features &= ~DRIVER_ATOMIC; 60 61 nouveau_hw_save_vga_fonts(dev, 1); 62 63 nv04_crtc_create(dev, 0); 64 if (nv_two_heads(dev)) 65 nv04_crtc_create(dev, 1); 66 67 for (i = 0; i < dcb->entries; i++) { 68 struct dcb_output *dcbent = &dcb->entry[i]; 69 70 connector = nouveau_connector_create(dev, dcbent); 71 if (IS_ERR(connector)) 72 continue; 73 74 switch (dcbent->type) { 75 case DCB_OUTPUT_ANALOG: 76 ret = nv04_dac_create(connector, dcbent); 77 break; 78 case DCB_OUTPUT_LVDS: 79 case DCB_OUTPUT_TMDS: 80 ret = nv04_dfp_create(connector, dcbent); 81 break; 82 case DCB_OUTPUT_TV: 83 if (dcbent->location == DCB_LOC_ON_CHIP) 84 ret = nv17_tv_create(connector, dcbent); 85 else 86 ret = nv04_tv_create(connector, dcbent); 87 break; 88 default: 89 NV_WARN(drm, "DCB type %d not known\n", dcbent->type); 90 continue; 91 } 92 93 if (ret) 94 continue; 95 } 96 97 list_for_each_entry_safe(connector, ct, 98 &dev->mode_config.connector_list, head) { 99 if (!connector->encoder_ids[0]) { 100 NV_WARN(drm, "%s has no encoders, removing\n", 101 connector->name); 102 connector->funcs->destroy(connector); 103 } 104 } 105 106 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 107 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 108 struct nvkm_i2c_bus *bus = 109 nvkm_i2c_bus_find(i2c, nv_encoder->dcb->i2c_index); 110 nv_encoder->i2c = bus ? &bus->i2c : NULL; 111 } 112 113 /* Save previous state */ 114 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) 115 crtc->save(&crtc->base); 116 117 list_for_each_entry(nv_encoder, &dev->mode_config.encoder_list, base.base.head) 118 nv_encoder->enc_save(&nv_encoder->base.base); 119 120 nouveau_overlay_init(dev); 121 122 return 0; 123 } 124 125 void 126 nv04_display_destroy(struct drm_device *dev) 127 { 128 struct nv04_display *disp = nv04_display(dev); 129 struct nouveau_drm *drm = nouveau_drm(dev); 130 struct nouveau_encoder *encoder; 131 struct nouveau_crtc *nv_crtc; 132 133 /* Restore state */ 134 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 135 encoder->enc_restore(&encoder->base.base); 136 137 list_for_each_entry(nv_crtc, &dev->mode_config.crtc_list, base.head) 138 nv_crtc->restore(&nv_crtc->base); 139 140 nouveau_hw_save_vga_fonts(dev, 0); 141 142 nouveau_display(dev)->priv = NULL; 143 kfree(disp); 144 145 nvif_object_unmap(&drm->client.device.object); 146 } 147 148 int 149 nv04_display_init(struct drm_device *dev) 150 { 151 struct nouveau_encoder *encoder; 152 struct nouveau_crtc *crtc; 153 154 /* meh.. modeset apparently doesn't setup all the regs and depends 155 * on pre-existing state, for now load the state of the card *before* 156 * nouveau was loaded, and then do a modeset. 157 * 158 * best thing to do probably is to make save/restore routines not 159 * save/restore "pre-load" state, but more general so we can save 160 * on suspend too. 161 */ 162 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) 163 crtc->save(&crtc->base); 164 165 list_for_each_entry(encoder, &dev->mode_config.encoder_list, base.base.head) 166 encoder->enc_save(&encoder->base.base); 167 168 return 0; 169 } 170 171 void 172 nv04_display_fini(struct drm_device *dev) 173 { 174 /* disable vblank interrupts */ 175 NVWriteCRTC(dev, 0, NV_PCRTC_INTR_EN_0, 0); 176 if (nv_two_heads(dev)) 177 NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); 178 } 179