1/* 2 * Copyright 2003 NVIDIA, Corporation 3 * Copyright 2006 Dave Airlie 4 * Copyright 2007 Maarten Maathuis 5 * Copyright 2007-2009 Stuart Bennett 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the next 15 * paragraph) shall be included in all copies or substantial portions of the 16 * Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 24 * DEALINGS IN THE SOFTWARE. 25 */ 26 27#include <drm/drm_modeset_helper_vtables.h> 28 29#include "nouveau_drv.h" 30#include "nouveau_encoder.h" 31#include "nouveau_connector.h" 32#include "nouveau_crtc.h" 33#include "hw.h" 34#include "nvreg.h" 35 36#include <subdev/bios/gpio.h> 37#include <subdev/gpio.h> 38 39#include <nvif/timer.h> 40 41int nv04_dac_output_offset(struct drm_encoder *encoder) 42{ 43 struct dcb_output *dcb = nouveau_encoder(encoder)->dcb; 44 int offset = 0; 45 46 if (dcb->or & (8 | DCB_OUTPUT_C)) 47 offset += 0x68; 48 if (dcb->or & (8 | DCB_OUTPUT_B)) 49 offset += 0x2000; 50 51 return offset; 52} 53 54/* 55 * arbitrary limit to number of sense oscillations tolerated in one sample 56 * period (observed to be at least 13 in "nvidia") 57 */ 58#define MAX_HBLANK_OSC 20 59 60/* 61 * arbitrary limit to number of conflicting sample pairs to tolerate at a 62 * voltage step (observed to be at least 5 in "nvidia") 63 */ 64#define MAX_SAMPLE_PAIRS 10 65 66static int sample_load_twice(struct drm_device *dev, bool sense[2]) 67{ 68 struct nouveau_drm *drm = nouveau_drm(dev); 69 struct nvif_object *device = &drm->client.device.object; 70 int i; 71 72 for (i = 0; i < 2; i++) { 73 bool sense_a, sense_b, sense_b_prime; 74 int j = 0; 75 76 /* 77 * wait for bit 0 clear -- out of hblank -- (say reg value 0x4), 78 * then wait for transition 0x4->0x5->0x4: enter hblank, leave 79 * hblank again 80 * use a 10ms timeout (guards against crtc being inactive, in 81 * which case blank state would never change) 82 */ 83 if (nvif_msec(&drm->client.device, 10, 84 if (!(nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 1)) 85 break; 86 ) < 0) 87 return -EBUSY; 88 89 if (nvif_msec(&drm->client.device, 10, 90 if ( (nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 1)) 91 break; 92 ) < 0) 93 return -EBUSY; 94 95 if (nvif_msec(&drm->client.device, 10, 96 if (!(nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 1)) 97 break; 98 ) < 0) 99 return -EBUSY; 100 101 udelay(100); 102 /* when level triggers, sense is _LO_ */ 103 sense_a = nvif_rd08(device, NV_PRMCIO_INP0) & 0x10; 104 105 /* take another reading until it agrees with sense_a... */ 106 do { 107 udelay(100); 108 sense_b = nvif_rd08(device, NV_PRMCIO_INP0) & 0x10; 109 if (sense_a != sense_b) { 110 sense_b_prime = 111 nvif_rd08(device, NV_PRMCIO_INP0) & 0x10; 112 if (sense_b == sense_b_prime) { 113 /* ... unless two consecutive subsequent 114 * samples agree; sense_a is replaced */ 115 sense_a = sense_b; 116 /* force mis-match so we loop */ 117 sense_b = !sense_a; 118 } 119 } 120 } while ((sense_a != sense_b) && ++j < MAX_HBLANK_OSC); 121 122 if (j == MAX_HBLANK_OSC) 123 /* with so much oscillation, default to sense:LO */ 124 sense[i] = false; 125 else 126 sense[i] = sense_a; 127 } 128 129 return 0; 130} 131 132static enum drm_connector_status nv04_dac_detect(struct drm_encoder *encoder, 133 struct drm_connector *connector) 134{ 135 struct drm_device *dev = encoder->dev; 136 struct nvif_object *device = &nouveau_drm(dev)->client.device.object; 137 struct nouveau_drm *drm = nouveau_drm(dev); 138 uint8_t saved_seq1, saved_pi, saved_rpc1, saved_cr_mode; 139 uint8_t saved_palette0[3], saved_palette_mask; 140 uint32_t saved_rtest_ctrl, saved_rgen_ctrl; 141 int i; 142 uint8_t blue; 143 bool sense = true; 144 145 /* 146 * for this detection to work, there needs to be a mode set up on the 147 * CRTC. this is presumed to be the case 148 */ 149 150 if (nv_two_heads(dev)) 151 /* only implemented for head A for now */ 152 NVSetOwner(dev, 0); 153 154 saved_cr_mode = NVReadVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX); 155 NVWriteVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX, saved_cr_mode | 0x80); 156 157 saved_seq1 = NVReadVgaSeq(dev, 0, NV_VIO_SR_CLOCK_INDEX); 158 NVWriteVgaSeq(dev, 0, NV_VIO_SR_CLOCK_INDEX, saved_seq1 & ~0x20); 159 160 saved_rtest_ctrl = NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL); 161 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL, 162 saved_rtest_ctrl & ~NV_PRAMDAC_TEST_CONTROL_PWRDWN_DAC_OFF); 163 164 msleep(10); 165 166 saved_pi = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_PIXEL_INDEX); 167 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_PIXEL_INDEX, 168 saved_pi & ~(0x80 | MASK(NV_CIO_CRE_PIXEL_FORMAT))); 169 saved_rpc1 = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_RPC1_INDEX); 170 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_RPC1_INDEX, saved_rpc1 & ~0xc0); 171 172 nvif_wr08(device, NV_PRMDIO_READ_MODE_ADDRESS, 0x0); 173 for (i = 0; i < 3; i++) 174 saved_palette0[i] = nvif_rd08(device, NV_PRMDIO_PALETTE_DATA); 175 saved_palette_mask = nvif_rd08(device, NV_PRMDIO_PIXEL_MASK); 176 nvif_wr08(device, NV_PRMDIO_PIXEL_MASK, 0); 177 178 saved_rgen_ctrl = NVReadRAMDAC(dev, 0, NV_PRAMDAC_GENERAL_CONTROL); 179 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_GENERAL_CONTROL, 180 (saved_rgen_ctrl & ~(NV_PRAMDAC_GENERAL_CONTROL_BPC_8BITS | 181 NV_PRAMDAC_GENERAL_CONTROL_TERMINATION_75OHM)) | 182 NV_PRAMDAC_GENERAL_CONTROL_PIXMIX_ON); 183 184 blue = 8; /* start of test range */ 185 186 do { 187 bool sense_pair[2]; 188 189 nvif_wr08(device, NV_PRMDIO_WRITE_MODE_ADDRESS, 0); 190 nvif_wr08(device, NV_PRMDIO_PALETTE_DATA, 0); 191 nvif_wr08(device, NV_PRMDIO_PALETTE_DATA, 0); 192 /* testing blue won't find monochrome monitors. I don't care */ 193 nvif_wr08(device, NV_PRMDIO_PALETTE_DATA, blue); 194 195 i = 0; 196 /* take sample pairs until both samples in the pair agree */ 197 do { 198 if (sample_load_twice(dev, sense_pair)) 199 goto out; 200 } while ((sense_pair[0] != sense_pair[1]) && 201 ++i < MAX_SAMPLE_PAIRS); 202 203 if (i == MAX_SAMPLE_PAIRS) 204 /* too much oscillation defaults to LO */ 205 sense = false; 206 else 207 sense = sense_pair[0]; 208 209 /* 210 * if sense goes LO before blue ramps to 0x18, monitor is not connected. 211 * ergo, if blue gets to 0x18, monitor must be connected 212 */ 213 } while (++blue < 0x18 && sense); 214 215out: 216 nvif_wr08(device, NV_PRMDIO_PIXEL_MASK, saved_palette_mask); 217 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_GENERAL_CONTROL, saved_rgen_ctrl); 218 nvif_wr08(device, NV_PRMDIO_WRITE_MODE_ADDRESS, 0); 219 for (i = 0; i < 3; i++) 220 nvif_wr08(device, NV_PRMDIO_PALETTE_DATA, saved_palette0[i]); 221 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL, saved_rtest_ctrl); 222 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_PIXEL_INDEX, saved_pi); 223 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_RPC1_INDEX, saved_rpc1); 224 NVWriteVgaSeq(dev, 0, NV_VIO_SR_CLOCK_INDEX, saved_seq1); 225 NVWriteVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX, saved_cr_mode); 226 227 if (blue == 0x18) { 228 NV_DEBUG(drm, "Load detected on head A\n"); 229 return connector_status_connected; 230 } 231 232 return connector_status_disconnected; 233} 234 235uint32_t nv17_dac_sample_load(struct drm_encoder *encoder) 236{ 237 struct drm_device *dev = encoder->dev; 238 struct nouveau_drm *drm = nouveau_drm(dev); 239 struct nvif_object *device = &nouveau_drm(dev)->client.device.object; 240 struct nvkm_gpio *gpio = nvxx_gpio(&drm->client.device); 241 struct dcb_output *dcb = nouveau_encoder(encoder)->dcb; 242 uint32_t sample, testval, regoffset = nv04_dac_output_offset(encoder); 243 uint32_t saved_powerctrl_2 = 0, saved_powerctrl_4 = 0, saved_routput, 244 saved_rtest_ctrl, saved_gpio0 = 0, saved_gpio1 = 0, temp, routput; 245 int head; 246 247#define RGB_TEST_DATA(r, g, b) (r << 0 | g << 10 | b << 20) 248 if (dcb->type == DCB_OUTPUT_TV) { 249 testval = RGB_TEST_DATA(0xa0, 0xa0, 0xa0); 250 251 if (drm->vbios.tvdactestval) 252 testval = drm->vbios.tvdactestval; 253 } else { 254 testval = RGB_TEST_DATA(0x140, 0x140, 0x140); /* 0x94050140 */ 255 256 if (drm->vbios.dactestval) 257 testval = drm->vbios.dactestval; 258 } 259 260 saved_rtest_ctrl = NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset); 261 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset, 262 saved_rtest_ctrl & ~NV_PRAMDAC_TEST_CONTROL_PWRDWN_DAC_OFF); 263 264 saved_powerctrl_2 = nvif_rd32(device, NV_PBUS_POWERCTRL_2); 265 266 nvif_wr32(device, NV_PBUS_POWERCTRL_2, saved_powerctrl_2 & 0xd7ffffff); 267 if (regoffset == 0x68) { 268 saved_powerctrl_4 = nvif_rd32(device, NV_PBUS_POWERCTRL_4); 269 nvif_wr32(device, NV_PBUS_POWERCTRL_4, saved_powerctrl_4 & 0xffffffcf); 270 } 271 272 if (gpio) { 273 saved_gpio1 = nvkm_gpio_get(gpio, 0, DCB_GPIO_TVDAC1, 0xff); 274 saved_gpio0 = nvkm_gpio_get(gpio, 0, DCB_GPIO_TVDAC0, 0xff); 275 nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC1, 0xff, dcb->type == DCB_OUTPUT_TV); 276 nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC0, 0xff, dcb->type == DCB_OUTPUT_TV); 277 } 278 279 msleep(4); 280 281 saved_routput = NVReadRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset); 282 head = (saved_routput & 0x100) >> 8; 283 284 /* if there's a spare crtc, using it will minimise flicker */ 285 if (!(NVReadVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX) & 0xC0)) 286 head ^= 1; 287 288 /* nv driver and nv31 use 0xfffffeee, nv34 and 6600 use 0xfffffece */ 289 routput = (saved_routput & 0xfffffece) | head << 8; 290 291 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CURIE) { 292 if (dcb->type == DCB_OUTPUT_TV) 293 routput |= 0x1a << 16; 294 else 295 routput &= ~(0x1a << 16); 296 } 297 298 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset, routput); 299 msleep(1); 300 301 temp = NVReadRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset); 302 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset, temp | 1); 303 304 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TESTPOINT_DATA, 305 NV_PRAMDAC_TESTPOINT_DATA_NOTBLANK | testval); 306 temp = NVReadRAMDAC(dev, head, NV_PRAMDAC_TEST_CONTROL); 307 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TEST_CONTROL, 308 temp | NV_PRAMDAC_TEST_CONTROL_TP_INS_EN_ASSERTED); 309 msleep(5); 310 311 sample = NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset); 312 /* do it again just in case it's a residual current */ 313 sample &= NVReadRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset); 314 315 temp = NVReadRAMDAC(dev, head, NV_PRAMDAC_TEST_CONTROL); 316 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TEST_CONTROL, 317 temp & ~NV_PRAMDAC_TEST_CONTROL_TP_INS_EN_ASSERTED); 318 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TESTPOINT_DATA, 0); 319 320 /* bios does something more complex for restoring, but I think this is good enough */ 321 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + regoffset, saved_routput); 322 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + regoffset, saved_rtest_ctrl); 323 if (regoffset == 0x68) 324 nvif_wr32(device, NV_PBUS_POWERCTRL_4, saved_powerctrl_4); 325 nvif_wr32(device, NV_PBUS_POWERCTRL_2, saved_powerctrl_2); 326 327 if (gpio) { 328 nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC1, 0xff, saved_gpio1); 329 nvkm_gpio_set(gpio, 0, DCB_GPIO_TVDAC0, 0xff, saved_gpio0); 330 } 331 332 return sample; 333} 334 335static enum drm_connector_status 336nv17_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector) 337{ 338 struct nouveau_drm *drm = nouveau_drm(encoder->dev); 339 struct dcb_output *dcb = nouveau_encoder(encoder)->dcb; 340 341 if (nv04_dac_in_use(encoder)) 342 return connector_status_disconnected; 343 344 if (nv17_dac_sample_load(encoder) & 345 NV_PRAMDAC_TEST_CONTROL_SENSEB_ALLHI) { 346 NV_DEBUG(drm, "Load detected on output %c\n", 347 '@' + ffs(dcb->or)); 348 return connector_status_connected; 349 } else { 350 return connector_status_disconnected; 351 } 352} 353 354static bool nv04_dac_mode_fixup(struct drm_encoder *encoder, 355 const struct drm_display_mode *mode, 356 struct drm_display_mode *adjusted_mode) 357{ 358 if (nv04_dac_in_use(encoder)) 359 return false; 360 361 return true; 362} 363 364static void nv04_dac_prepare(struct drm_encoder *encoder) 365{ 366 const struct drm_encoder_helper_funcs *helper = encoder->helper_private; 367 struct drm_device *dev = encoder->dev; 368 int head = nouveau_crtc(encoder->crtc)->index; 369 370 helper->dpms(encoder, DRM_MODE_DPMS_OFF); 371 372 nv04_dfp_disable(dev, head); 373} 374 375static void nv04_dac_mode_set(struct drm_encoder *encoder, 376 struct drm_display_mode *mode, 377 struct drm_display_mode *adjusted_mode) 378{ 379 struct drm_device *dev = encoder->dev; 380 struct nouveau_drm *drm = nouveau_drm(dev); 381 int head = nouveau_crtc(encoder->crtc)->index; 382 383 if (nv_gf4_disp_arch(dev)) { 384 struct drm_encoder *rebind; 385 uint32_t dac_offset = nv04_dac_output_offset(encoder); 386 uint32_t otherdac; 387 388 /* bit 16-19 are bits that are set on some G70 cards, 389 * but don't seem to have much effect */ 390 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + dac_offset, 391 head << 8 | NV_PRAMDAC_DACCLK_SEL_DACCLK); 392 /* force any other vga encoders to bind to the other crtc */ 393 list_for_each_entry(rebind, &dev->mode_config.encoder_list, head) { 394 if (rebind == encoder 395 || nouveau_encoder(rebind)->dcb->type != DCB_OUTPUT_ANALOG) 396 continue; 397 398 dac_offset = nv04_dac_output_offset(rebind); 399 otherdac = NVReadRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + dac_offset); 400 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + dac_offset, 401 (otherdac & ~0x0100) | (head ^ 1) << 8); 402 } 403 } 404 405 /* This could use refinement for flatpanels, but it should work this way */ 406 if (drm->client.device.info.chipset < 0x44) 407 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + nv04_dac_output_offset(encoder), 0xf0000000); 408 else 409 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_TEST_CONTROL + nv04_dac_output_offset(encoder), 0x00100000); 410} 411 412static void nv04_dac_commit(struct drm_encoder *encoder) 413{ 414 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 415 struct nouveau_drm *drm = nouveau_drm(encoder->dev); 416 struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); 417 const struct drm_encoder_helper_funcs *helper = encoder->helper_private; 418 419 helper->dpms(encoder, DRM_MODE_DPMS_ON); 420 421 NV_DEBUG(drm, "Output %s is running on CRTC %d using output %c\n", 422 nv04_encoder_get_connector(nv_encoder)->base.name, 423 nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); 424} 425 426void nv04_dac_update_dacclk(struct drm_encoder *encoder, bool enable) 427{ 428 struct drm_device *dev = encoder->dev; 429 struct dcb_output *dcb = nouveau_encoder(encoder)->dcb; 430 431 if (nv_gf4_disp_arch(dev)) { 432 uint32_t *dac_users = &nv04_display(dev)->dac_users[ffs(dcb->or) - 1]; 433 int dacclk_off = NV_PRAMDAC_DACCLK + nv04_dac_output_offset(encoder); 434 uint32_t dacclk = NVReadRAMDAC(dev, 0, dacclk_off); 435 436 if (enable) { 437 *dac_users |= 1 << dcb->index; 438 NVWriteRAMDAC(dev, 0, dacclk_off, dacclk | NV_PRAMDAC_DACCLK_SEL_DACCLK); 439 440 } else { 441 *dac_users &= ~(1 << dcb->index); 442 if (!*dac_users) 443 NVWriteRAMDAC(dev, 0, dacclk_off, 444 dacclk & ~NV_PRAMDAC_DACCLK_SEL_DACCLK); 445 } 446 } 447} 448 449/* Check if the DAC corresponding to 'encoder' is being used by 450 * someone else. */ 451bool nv04_dac_in_use(struct drm_encoder *encoder) 452{ 453 struct drm_device *dev = encoder->dev; 454 struct dcb_output *dcb = nouveau_encoder(encoder)->dcb; 455 456 return nv_gf4_disp_arch(encoder->dev) && 457 (nv04_display(dev)->dac_users[ffs(dcb->or) - 1] & ~(1 << dcb->index)); 458} 459 460static void nv04_dac_dpms(struct drm_encoder *encoder, int mode) 461{ 462 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 463 struct nouveau_drm *drm = nouveau_drm(encoder->dev); 464 465 if (nv_encoder->last_dpms == mode) 466 return; 467 nv_encoder->last_dpms = mode; 468 469 NV_DEBUG(drm, "Setting dpms mode %d on vga encoder (output %d)\n", 470 mode, nv_encoder->dcb->index); 471 472 nv04_dac_update_dacclk(encoder, mode == DRM_MODE_DPMS_ON); 473} 474 475static void nv04_dac_save(struct drm_encoder *encoder) 476{ 477 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 478 struct drm_device *dev = encoder->dev; 479 480 if (nv_gf4_disp_arch(dev)) 481 nv_encoder->restore.output = NVReadRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + 482 nv04_dac_output_offset(encoder)); 483} 484 485static void nv04_dac_restore(struct drm_encoder *encoder) 486{ 487 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 488 struct drm_device *dev = encoder->dev; 489 490 if (nv_gf4_disp_arch(dev)) 491 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_DACCLK + nv04_dac_output_offset(encoder), 492 nv_encoder->restore.output); 493 494 nv_encoder->last_dpms = NV_DPMS_CLEARED; 495} 496 497static void nv04_dac_destroy(struct drm_encoder *encoder) 498{ 499 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 500 501 drm_encoder_cleanup(encoder); 502 kfree(nv_encoder); 503} 504 505static const struct drm_encoder_helper_funcs nv04_dac_helper_funcs = { 506 .dpms = nv04_dac_dpms, 507 .mode_fixup = nv04_dac_mode_fixup, 508 .prepare = nv04_dac_prepare, 509 .commit = nv04_dac_commit, 510 .mode_set = nv04_dac_mode_set, 511 .detect = nv04_dac_detect 512}; 513 514static const struct drm_encoder_helper_funcs nv17_dac_helper_funcs = { 515 .dpms = nv04_dac_dpms, 516 .mode_fixup = nv04_dac_mode_fixup, 517 .prepare = nv04_dac_prepare, 518 .commit = nv04_dac_commit, 519 .mode_set = nv04_dac_mode_set, 520 .detect = nv17_dac_detect 521}; 522 523static const struct drm_encoder_funcs nv04_dac_funcs = { 524 .destroy = nv04_dac_destroy, 525}; 526 527int 528nv04_dac_create(struct drm_connector *connector, struct dcb_output *entry) 529{ 530 const struct drm_encoder_helper_funcs *helper; 531 struct nouveau_encoder *nv_encoder = NULL; 532 struct drm_device *dev = connector->dev; 533 struct drm_encoder *encoder; 534 535 nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL); 536 if (!nv_encoder) 537 return -ENOMEM; 538 539 encoder = to_drm_encoder(nv_encoder); 540 541 nv_encoder->dcb = entry; 542 nv_encoder->or = ffs(entry->or) - 1; 543 544 nv_encoder->enc_save = nv04_dac_save; 545 nv_encoder->enc_restore = nv04_dac_restore; 546 547 if (nv_gf4_disp_arch(dev)) 548 helper = &nv17_dac_helper_funcs; 549 else 550 helper = &nv04_dac_helper_funcs; 551 552 drm_encoder_init(dev, encoder, &nv04_dac_funcs, DRM_MODE_ENCODER_DAC, 553 NULL); 554 drm_encoder_helper_add(encoder, helper); 555 556 encoder->possible_crtcs = entry->heads; 557 encoder->possible_clones = 0; 558 559 drm_connector_attach_encoder(connector, encoder); 560 return 0; 561} 562