| /* |
| * Copyright (C) 2008 Maarten Maathuis. |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial |
| * portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
| * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| */ |
| |
| #include "drmP.h" |
| #include "drm_crtc_helper.h" |
| |
| #define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO) |
| #include "nouveau_reg.h" |
| #include "nouveau_drv.h" |
| #include "nouveau_dma.h" |
| #include "nouveau_encoder.h" |
| #include "nouveau_connector.h" |
| #include "nouveau_crtc.h" |
| #include "nv50_display.h" |
| |
| static void |
| nv50_dac_disconnect(struct nouveau_encoder *nv_encoder) |
| { |
| struct drm_device *dev = to_drm_encoder(nv_encoder)->dev; |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct nouveau_channel *evo = dev_priv->evo; |
| int ret; |
| |
| NV_DEBUG_KMS(dev, "Disconnecting DAC %d\n", nv_encoder->or); |
| |
| ret = RING_SPACE(evo, 2); |
| if (ret) { |
| NV_ERROR(dev, "no space while disconnecting DAC\n"); |
| return; |
| } |
| BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 1); |
| OUT_RING(evo, 0); |
| } |
| |
| static enum drm_connector_status |
| nv50_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector) |
| { |
| struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
| struct drm_device *dev = encoder->dev; |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| enum drm_connector_status status = connector_status_disconnected; |
| uint32_t dpms_state, load_pattern, load_state; |
| int or = nv_encoder->or; |
| |
| nv_wr32(dev, NV50_PDISPLAY_DAC_CLK_CTRL1(or), 0x00000001); |
| dpms_state = nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)); |
| |
| nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or), |
| 0x00150000 | NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING); |
| if (!nv_wait(NV50_PDISPLAY_DAC_DPMS_CTRL(or), |
| NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING, 0)) { |
| NV_ERROR(dev, "timeout: DAC_DPMS_CTRL_PENDING(%d) == 0\n", or); |
| NV_ERROR(dev, "DAC_DPMS_CTRL(%d) = 0x%08x\n", or, |
| nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or))); |
| return status; |
| } |
| |
| /* Use bios provided value if possible. */ |
| if (dev_priv->vbios.dactestval) { |
| load_pattern = dev_priv->vbios.dactestval; |
| NV_DEBUG_KMS(dev, "Using bios provided load_pattern of %d\n", |
| load_pattern); |
| } else { |
| load_pattern = 340; |
| NV_DEBUG_KMS(dev, "Using default load_pattern of %d\n", |
| load_pattern); |
| } |
| |
| nv_wr32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or), |
| NV50_PDISPLAY_DAC_LOAD_CTRL_ACTIVE | load_pattern); |
| mdelay(45); /* give it some time to process */ |
| load_state = nv_rd32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or)); |
| |
| nv_wr32(dev, NV50_PDISPLAY_DAC_LOAD_CTRL(or), 0); |
| nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or), dpms_state | |
| NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING); |
| |
| if ((load_state & NV50_PDISPLAY_DAC_LOAD_CTRL_PRESENT) == |
| NV50_PDISPLAY_DAC_LOAD_CTRL_PRESENT) |
| status = connector_status_connected; |
| |
| if (status == connector_status_connected) |
| NV_DEBUG_KMS(dev, "Load was detected on output with or %d\n", or); |
| else |
| NV_DEBUG_KMS(dev, "Load was not detected on output with or %d\n", or); |
| |
| return status; |
| } |
| |
| static void |
| nv50_dac_dpms(struct drm_encoder *encoder, int mode) |
| { |
| struct drm_device *dev = encoder->dev; |
| struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
| uint32_t val; |
| int or = nv_encoder->or; |
| |
| NV_DEBUG_KMS(dev, "or %d mode %d\n", or, mode); |
| |
| /* wait for it to be done */ |
| if (!nv_wait(NV50_PDISPLAY_DAC_DPMS_CTRL(or), |
| NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING, 0)) { |
| NV_ERROR(dev, "timeout: DAC_DPMS_CTRL_PENDING(%d) == 0\n", or); |
| NV_ERROR(dev, "DAC_DPMS_CTRL(%d) = 0x%08x\n", or, |
| nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or))); |
| return; |
| } |
| |
| val = nv_rd32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or)) & ~0x7F; |
| |
| if (mode != DRM_MODE_DPMS_ON) |
| val |= NV50_PDISPLAY_DAC_DPMS_CTRL_BLANKED; |
| |
| switch (mode) { |
| case DRM_MODE_DPMS_STANDBY: |
| val |= NV50_PDISPLAY_DAC_DPMS_CTRL_HSYNC_OFF; |
| break; |
| case DRM_MODE_DPMS_SUSPEND: |
| val |= NV50_PDISPLAY_DAC_DPMS_CTRL_VSYNC_OFF; |
| break; |
| case DRM_MODE_DPMS_OFF: |
| val |= NV50_PDISPLAY_DAC_DPMS_CTRL_OFF; |
| val |= NV50_PDISPLAY_DAC_DPMS_CTRL_HSYNC_OFF; |
| val |= NV50_PDISPLAY_DAC_DPMS_CTRL_VSYNC_OFF; |
| break; |
| default: |
| break; |
| } |
| |
| nv_wr32(dev, NV50_PDISPLAY_DAC_DPMS_CTRL(or), val | |
| NV50_PDISPLAY_DAC_DPMS_CTRL_PENDING); |
| } |
| |
| static void |
| nv50_dac_save(struct drm_encoder *encoder) |
| { |
| NV_ERROR(encoder->dev, "!!\n"); |
| } |
| |
| static void |
| nv50_dac_restore(struct drm_encoder *encoder) |
| { |
| NV_ERROR(encoder->dev, "!!\n"); |
| } |
| |
| static bool |
| nv50_dac_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, |
| struct drm_display_mode *adjusted_mode) |
| { |
| struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
| struct nouveau_connector *connector; |
| |
| NV_DEBUG_KMS(encoder->dev, "or %d\n", nv_encoder->or); |
| |
| connector = nouveau_encoder_connector_get(nv_encoder); |
| if (!connector) { |
| NV_ERROR(encoder->dev, "Encoder has no connector\n"); |
| return false; |
| } |
| |
| if (connector->scaling_mode != DRM_MODE_SCALE_NONE && |
| connector->native_mode) { |
| int id = adjusted_mode->base.id; |
| *adjusted_mode = *connector->native_mode; |
| adjusted_mode->base.id = id; |
| } |
| |
| return true; |
| } |
| |
| static void |
| nv50_dac_prepare(struct drm_encoder *encoder) |
| { |
| } |
| |
| static void |
| nv50_dac_commit(struct drm_encoder *encoder) |
| { |
| } |
| |
| static void |
| nv50_dac_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, |
| struct drm_display_mode *adjusted_mode) |
| { |
| struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
| struct drm_device *dev = encoder->dev; |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct nouveau_channel *evo = dev_priv->evo; |
| struct nouveau_crtc *crtc = nouveau_crtc(encoder->crtc); |
| uint32_t mode_ctl = 0, mode_ctl2 = 0; |
| int ret; |
| |
| NV_DEBUG_KMS(dev, "or %d\n", nv_encoder->or); |
| |
| nv50_dac_dpms(encoder, DRM_MODE_DPMS_ON); |
| |
| if (crtc->index == 1) |
| mode_ctl |= NV50_EVO_DAC_MODE_CTRL_CRTC1; |
| else |
| mode_ctl |= NV50_EVO_DAC_MODE_CTRL_CRTC0; |
| |
| /* Lacking a working tv-out, this is not a 100% sure. */ |
| if (nv_encoder->dcb->type == OUTPUT_ANALOG) |
| mode_ctl |= 0x40; |
| else |
| if (nv_encoder->dcb->type == OUTPUT_TV) |
| mode_ctl |= 0x100; |
| |
| if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) |
| mode_ctl2 |= NV50_EVO_DAC_MODE_CTRL2_NHSYNC; |
| |
| if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) |
| mode_ctl2 |= NV50_EVO_DAC_MODE_CTRL2_NVSYNC; |
| |
| ret = RING_SPACE(evo, 3); |
| if (ret) { |
| NV_ERROR(dev, "no space while connecting DAC\n"); |
| return; |
| } |
| BEGIN_RING(evo, 0, NV50_EVO_DAC(nv_encoder->or, MODE_CTRL), 2); |
| OUT_RING(evo, mode_ctl); |
| OUT_RING(evo, mode_ctl2); |
| } |
| |
| static const struct drm_encoder_helper_funcs nv50_dac_helper_funcs = { |
| .dpms = nv50_dac_dpms, |
| .save = nv50_dac_save, |
| .restore = nv50_dac_restore, |
| .mode_fixup = nv50_dac_mode_fixup, |
| .prepare = nv50_dac_prepare, |
| .commit = nv50_dac_commit, |
| .mode_set = nv50_dac_mode_set, |
| .detect = nv50_dac_detect |
| }; |
| |
| static void |
| nv50_dac_destroy(struct drm_encoder *encoder) |
| { |
| struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
| |
| if (!encoder) |
| return; |
| |
| NV_DEBUG_KMS(encoder->dev, "\n"); |
| |
| drm_encoder_cleanup(encoder); |
| kfree(nv_encoder); |
| } |
| |
| static const struct drm_encoder_funcs nv50_dac_encoder_funcs = { |
| .destroy = nv50_dac_destroy, |
| }; |
| |
| int |
| nv50_dac_create(struct drm_device *dev, struct dcb_entry *entry) |
| { |
| struct nouveau_encoder *nv_encoder; |
| struct drm_encoder *encoder; |
| |
| NV_DEBUG_KMS(dev, "\n"); |
| NV_INFO(dev, "Detected a DAC output\n"); |
| |
| nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL); |
| if (!nv_encoder) |
| return -ENOMEM; |
| encoder = to_drm_encoder(nv_encoder); |
| |
| nv_encoder->dcb = entry; |
| nv_encoder->or = ffs(entry->or) - 1; |
| |
| nv_encoder->disconnect = nv50_dac_disconnect; |
| |
| drm_encoder_init(dev, encoder, &nv50_dac_encoder_funcs, |
| DRM_MODE_ENCODER_DAC); |
| drm_encoder_helper_add(encoder, &nv50_dac_helper_funcs); |
| |
| encoder->possible_crtcs = entry->heads; |
| encoder->possible_clones = 0; |
| return 0; |
| } |
| |