| /* |
| * Copyright (C) 2009 Francisco Jerez. |
| * 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 "nouveau_drv.h" |
| #include "nouveau_encoder.h" |
| #include "nouveau_connector.h" |
| #include "nouveau_crtc.h" |
| #include "nouveau_hw.h" |
| #include "drm_crtc_helper.h" |
| |
| #include "i2c/ch7006.h" |
| |
| static struct { |
| struct i2c_board_info board_info; |
| struct drm_encoder_funcs funcs; |
| struct drm_encoder_helper_funcs hfuncs; |
| void *params; |
| |
| } nv04_tv_encoder_info[] = { |
| { |
| .board_info = { I2C_BOARD_INFO("ch7006", 0x75) }, |
| .params = &(struct ch7006_encoder_params) { |
| CH7006_FORMAT_RGB24m12I, CH7006_CLOCK_MASTER, |
| 0, 0, 0, |
| CH7006_SYNC_SLAVE, CH7006_SYNC_SEPARATED, |
| CH7006_POUT_3_3V, CH7006_ACTIVE_HSYNC |
| }, |
| }, |
| }; |
| |
| static bool probe_i2c_addr(struct i2c_adapter *adapter, int addr) |
| { |
| struct i2c_msg msg = { |
| .addr = addr, |
| .len = 0, |
| }; |
| |
| return i2c_transfer(adapter, &msg, 1) == 1; |
| } |
| |
| int nv04_tv_identify(struct drm_device *dev, int i2c_index) |
| { |
| struct nouveau_i2c_chan *i2c; |
| bool was_locked; |
| int i, ret; |
| |
| NV_TRACE(dev, "Probing TV encoders on I2C bus: %d\n", i2c_index); |
| |
| i2c = nouveau_i2c_find(dev, i2c_index); |
| if (!i2c) |
| return -ENODEV; |
| |
| was_locked = NVLockVgaCrtcs(dev, false); |
| |
| for (i = 0; i < ARRAY_SIZE(nv04_tv_encoder_info); i++) { |
| if (probe_i2c_addr(&i2c->adapter, |
| nv04_tv_encoder_info[i].board_info.addr)) { |
| ret = i; |
| break; |
| } |
| } |
| |
| if (i < ARRAY_SIZE(nv04_tv_encoder_info)) { |
| NV_TRACE(dev, "Detected TV encoder: %s\n", |
| nv04_tv_encoder_info[i].board_info.type); |
| |
| } else { |
| NV_TRACE(dev, "No TV encoders found.\n"); |
| i = -ENODEV; |
| } |
| |
| NVLockVgaCrtcs(dev, was_locked); |
| return i; |
| } |
| |
| #define PLLSEL_TV_CRTC1_MASK \ |
| (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK1 \ |
| | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK1) |
| #define PLLSEL_TV_CRTC2_MASK \ |
| (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK2 \ |
| | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK2) |
| |
| static void nv04_tv_dpms(struct drm_encoder *encoder, int mode) |
| { |
| struct drm_device *dev = encoder->dev; |
| struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct nv04_mode_state *state = &dev_priv->mode_reg; |
| uint8_t crtc1A; |
| |
| NV_INFO(dev, "Setting dpms mode %d on TV encoder (output %d)\n", |
| mode, nv_encoder->dcb->index); |
| |
| state->pllsel &= ~(PLLSEL_TV_CRTC1_MASK | PLLSEL_TV_CRTC2_MASK); |
| |
| if (mode == DRM_MODE_DPMS_ON) { |
| int head = nouveau_crtc(encoder->crtc)->index; |
| crtc1A = NVReadVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX); |
| |
| state->pllsel |= head ? PLLSEL_TV_CRTC2_MASK : |
| PLLSEL_TV_CRTC1_MASK; |
| |
| /* Inhibit hsync */ |
| crtc1A |= 0x80; |
| |
| NVWriteVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX, crtc1A); |
| } |
| |
| NVWriteRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT, state->pllsel); |
| |
| to_encoder_slave(encoder)->slave_funcs->dpms(encoder, mode); |
| } |
| |
| static void nv04_tv_bind(struct drm_device *dev, int head, bool bind) |
| { |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct nv04_crtc_reg *state = &dev_priv->mode_reg.crtc_reg[head]; |
| |
| state->tv_setup = 0; |
| |
| if (bind) { |
| state->CRTC[NV_CIO_CRE_LCD__INDEX] = 0; |
| state->CRTC[NV_CIO_CRE_49] |= 0x10; |
| } else { |
| state->CRTC[NV_CIO_CRE_49] &= ~0x10; |
| } |
| |
| NVWriteVgaCrtc(dev, head, NV_CIO_CRE_LCD__INDEX, |
| state->CRTC[NV_CIO_CRE_LCD__INDEX]); |
| NVWriteVgaCrtc(dev, head, NV_CIO_CRE_49, |
| state->CRTC[NV_CIO_CRE_49]); |
| NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP, |
| state->tv_setup); |
| } |
| |
| static void nv04_tv_prepare(struct drm_encoder *encoder) |
| { |
| struct drm_device *dev = encoder->dev; |
| int head = nouveau_crtc(encoder->crtc)->index; |
| struct drm_encoder_helper_funcs *helper = encoder->helper_private; |
| |
| helper->dpms(encoder, DRM_MODE_DPMS_OFF); |
| |
| nv04_dfp_disable(dev, head); |
| |
| if (nv_two_heads(dev)) |
| nv04_tv_bind(dev, head ^ 1, false); |
| |
| nv04_tv_bind(dev, head, true); |
| } |
| |
| static void nv04_tv_mode_set(struct drm_encoder *encoder, |
| struct drm_display_mode *mode, |
| struct drm_display_mode *adjusted_mode) |
| { |
| struct drm_device *dev = encoder->dev; |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); |
| struct nv04_crtc_reg *regp = &dev_priv->mode_reg.crtc_reg[nv_crtc->index]; |
| |
| regp->tv_htotal = adjusted_mode->htotal; |
| regp->tv_vtotal = adjusted_mode->vtotal; |
| |
| /* These delay the TV signals with respect to the VGA port, |
| * they might be useful if we ever allow a CRTC to drive |
| * multiple outputs. |
| */ |
| regp->tv_hskew = 1; |
| regp->tv_hsync_delay = 1; |
| regp->tv_hsync_delay2 = 64; |
| regp->tv_vskew = 1; |
| regp->tv_vsync_delay = 1; |
| |
| to_encoder_slave(encoder)->slave_funcs->mode_set(encoder, mode, adjusted_mode); |
| } |
| |
| static void nv04_tv_commit(struct drm_encoder *encoder) |
| { |
| struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
| struct drm_device *dev = encoder->dev; |
| struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); |
| struct drm_encoder_helper_funcs *helper = encoder->helper_private; |
| |
| helper->dpms(encoder, DRM_MODE_DPMS_ON); |
| |
| NV_INFO(dev, "Output %s is running on CRTC %d using output %c\n", |
| drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), nv_crtc->index, |
| '@' + ffs(nv_encoder->dcb->or)); |
| } |
| |
| static void nv04_tv_destroy(struct drm_encoder *encoder) |
| { |
| struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
| |
| to_encoder_slave(encoder)->slave_funcs->destroy(encoder); |
| |
| drm_encoder_cleanup(encoder); |
| |
| kfree(nv_encoder); |
| } |
| |
| int nv04_tv_create(struct drm_device *dev, struct dcb_entry *entry) |
| { |
| struct nouveau_encoder *nv_encoder; |
| struct drm_encoder *encoder; |
| struct drm_nouveau_private *dev_priv = dev->dev_private; |
| struct i2c_adapter *adap; |
| struct drm_encoder_funcs *funcs = NULL; |
| struct drm_encoder_helper_funcs *hfuncs = NULL; |
| struct drm_encoder_slave_funcs *sfuncs = NULL; |
| int i2c_index = entry->i2c_index; |
| int type, ret; |
| bool was_locked; |
| |
| /* Ensure that we can talk to this encoder */ |
| type = nv04_tv_identify(dev, i2c_index); |
| if (type < 0) |
| return type; |
| |
| /* Allocate the necessary memory */ |
| nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL); |
| if (!nv_encoder) |
| return -ENOMEM; |
| |
| /* Initialize the common members */ |
| encoder = to_drm_encoder(nv_encoder); |
| |
| funcs = &nv04_tv_encoder_info[type].funcs; |
| hfuncs = &nv04_tv_encoder_info[type].hfuncs; |
| |
| drm_encoder_init(dev, encoder, funcs, DRM_MODE_ENCODER_TVDAC); |
| drm_encoder_helper_add(encoder, hfuncs); |
| |
| encoder->possible_crtcs = entry->heads; |
| encoder->possible_clones = 0; |
| |
| nv_encoder->dcb = entry; |
| nv_encoder->or = ffs(entry->or) - 1; |
| |
| /* Run the slave-specific initialization */ |
| adap = &dev_priv->vbios->dcb->i2c[i2c_index].chan->adapter; |
| |
| was_locked = NVLockVgaCrtcs(dev, false); |
| |
| ret = drm_i2c_encoder_init(encoder->dev, to_encoder_slave(encoder), adap, |
| &nv04_tv_encoder_info[type].board_info); |
| |
| NVLockVgaCrtcs(dev, was_locked); |
| |
| if (ret < 0) |
| goto fail; |
| |
| /* Fill the function pointers */ |
| sfuncs = to_encoder_slave(encoder)->slave_funcs; |
| |
| *funcs = (struct drm_encoder_funcs) { |
| .destroy = nv04_tv_destroy, |
| }; |
| |
| *hfuncs = (struct drm_encoder_helper_funcs) { |
| .dpms = nv04_tv_dpms, |
| .save = sfuncs->save, |
| .restore = sfuncs->restore, |
| .mode_fixup = sfuncs->mode_fixup, |
| .prepare = nv04_tv_prepare, |
| .commit = nv04_tv_commit, |
| .mode_set = nv04_tv_mode_set, |
| .detect = sfuncs->detect, |
| }; |
| |
| /* Set the slave encoder configuration */ |
| sfuncs->set_config(encoder, nv04_tv_encoder_info[type].params); |
| |
| return 0; |
| |
| fail: |
| drm_encoder_cleanup(encoder); |
| |
| kfree(nv_encoder); |
| return ret; |
| } |