1 /* 2 * Copyright (C) 2009 Francisco Jerez. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 */ 26 27 #include <drm/drmP.h> 28 #include "nouveau_drm.h" 29 #include "nouveau_reg.h" 30 #include "nouveau_encoder.h" 31 #include "nouveau_connector.h" 32 #include "nouveau_crtc.h" 33 #include "hw.h" 34 #include <drm/drm_crtc_helper.h> 35 36 #include <drm/i2c/ch7006.h> 37 38 #include <subdev/i2c.h> 39 40 static struct i2c_board_info nv04_tv_encoder_info[] = { 41 { 42 I2C_BOARD_INFO("ch7006", 0x75), 43 .platform_data = &(struct ch7006_encoder_params) { 44 CH7006_FORMAT_RGB24m12I, CH7006_CLOCK_MASTER, 45 0, 0, 0, 46 CH7006_SYNC_SLAVE, CH7006_SYNC_SEPARATED, 47 CH7006_POUT_3_3V, CH7006_ACTIVE_HSYNC 48 } 49 }, 50 { } 51 }; 52 53 int nv04_tv_identify(struct drm_device *dev, int i2c_index) 54 { 55 struct nouveau_drm *drm = nouveau_drm(dev); 56 struct nouveau_i2c *i2c = nouveau_i2c(drm->device); 57 58 return i2c->identify(i2c, i2c_index, "TV encoder", 59 nv04_tv_encoder_info, NULL); 60 } 61 62 63 #define PLLSEL_TV_CRTC1_MASK \ 64 (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK1 \ 65 | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK1) 66 #define PLLSEL_TV_CRTC2_MASK \ 67 (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK2 \ 68 | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK2) 69 70 static void nv04_tv_dpms(struct drm_encoder *encoder, int mode) 71 { 72 struct drm_device *dev = encoder->dev; 73 struct nouveau_drm *drm = nouveau_drm(dev); 74 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 75 struct nv04_mode_state *state = &nv04_display(dev)->mode_reg; 76 uint8_t crtc1A; 77 78 NV_DEBUG(drm, "Setting dpms mode %d on TV encoder (output %d)\n", 79 mode, nv_encoder->dcb->index); 80 81 state->pllsel &= ~(PLLSEL_TV_CRTC1_MASK | PLLSEL_TV_CRTC2_MASK); 82 83 if (mode == DRM_MODE_DPMS_ON) { 84 int head = nouveau_crtc(encoder->crtc)->index; 85 crtc1A = NVReadVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX); 86 87 state->pllsel |= head ? PLLSEL_TV_CRTC2_MASK : 88 PLLSEL_TV_CRTC1_MASK; 89 90 /* Inhibit hsync */ 91 crtc1A |= 0x80; 92 93 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX, crtc1A); 94 } 95 96 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT, state->pllsel); 97 98 get_slave_funcs(encoder)->dpms(encoder, mode); 99 } 100 101 static void nv04_tv_bind(struct drm_device *dev, int head, bool bind) 102 { 103 struct nv04_crtc_reg *state = &nv04_display(dev)->mode_reg.crtc_reg[head]; 104 105 state->tv_setup = 0; 106 107 if (bind) 108 state->CRTC[NV_CIO_CRE_49] |= 0x10; 109 else 110 state->CRTC[NV_CIO_CRE_49] &= ~0x10; 111 112 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_LCD__INDEX, 113 state->CRTC[NV_CIO_CRE_LCD__INDEX]); 114 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_49, 115 state->CRTC[NV_CIO_CRE_49]); 116 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP, 117 state->tv_setup); 118 } 119 120 static void nv04_tv_prepare(struct drm_encoder *encoder) 121 { 122 struct drm_device *dev = encoder->dev; 123 int head = nouveau_crtc(encoder->crtc)->index; 124 struct drm_encoder_helper_funcs *helper = encoder->helper_private; 125 126 helper->dpms(encoder, DRM_MODE_DPMS_OFF); 127 128 nv04_dfp_disable(dev, head); 129 130 if (nv_two_heads(dev)) 131 nv04_tv_bind(dev, head ^ 1, false); 132 133 nv04_tv_bind(dev, head, true); 134 } 135 136 static void nv04_tv_mode_set(struct drm_encoder *encoder, 137 struct drm_display_mode *mode, 138 struct drm_display_mode *adjusted_mode) 139 { 140 struct drm_device *dev = encoder->dev; 141 struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); 142 struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index]; 143 144 regp->tv_htotal = adjusted_mode->htotal; 145 regp->tv_vtotal = adjusted_mode->vtotal; 146 147 /* These delay the TV signals with respect to the VGA port, 148 * they might be useful if we ever allow a CRTC to drive 149 * multiple outputs. 150 */ 151 regp->tv_hskew = 1; 152 regp->tv_hsync_delay = 1; 153 regp->tv_hsync_delay2 = 64; 154 regp->tv_vskew = 1; 155 regp->tv_vsync_delay = 1; 156 157 get_slave_funcs(encoder)->mode_set(encoder, mode, adjusted_mode); 158 } 159 160 static void nv04_tv_commit(struct drm_encoder *encoder) 161 { 162 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 163 struct drm_device *dev = encoder->dev; 164 struct nouveau_drm *drm = nouveau_drm(dev); 165 struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); 166 struct drm_encoder_helper_funcs *helper = encoder->helper_private; 167 168 helper->dpms(encoder, DRM_MODE_DPMS_ON); 169 170 NV_DEBUG(drm, "Output %s is running on CRTC %d using output %c\n", 171 drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); 172 } 173 174 static void nv04_tv_destroy(struct drm_encoder *encoder) 175 { 176 get_slave_funcs(encoder)->destroy(encoder); 177 drm_encoder_cleanup(encoder); 178 179 kfree(encoder->helper_private); 180 kfree(nouveau_encoder(encoder)); 181 } 182 183 static const struct drm_encoder_funcs nv04_tv_funcs = { 184 .destroy = nv04_tv_destroy, 185 }; 186 187 static const struct drm_encoder_helper_funcs nv04_tv_helper_funcs = { 188 .dpms = nv04_tv_dpms, 189 .save = drm_i2c_encoder_save, 190 .restore = drm_i2c_encoder_restore, 191 .mode_fixup = drm_i2c_encoder_mode_fixup, 192 .prepare = nv04_tv_prepare, 193 .commit = nv04_tv_commit, 194 .mode_set = nv04_tv_mode_set, 195 .detect = drm_i2c_encoder_detect, 196 }; 197 198 int 199 nv04_tv_create(struct drm_connector *connector, struct dcb_output *entry) 200 { 201 struct nouveau_encoder *nv_encoder; 202 struct drm_encoder *encoder; 203 struct drm_device *dev = connector->dev; 204 struct nouveau_drm *drm = nouveau_drm(dev); 205 struct nouveau_i2c *i2c = nouveau_i2c(drm->device); 206 struct nouveau_i2c_port *port = i2c->find(i2c, entry->i2c_index); 207 int type, ret; 208 209 /* Ensure that we can talk to this encoder */ 210 type = nv04_tv_identify(dev, entry->i2c_index); 211 if (type < 0) 212 return type; 213 214 /* Allocate the necessary memory */ 215 nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL); 216 if (!nv_encoder) 217 return -ENOMEM; 218 219 /* Initialize the common members */ 220 encoder = to_drm_encoder(nv_encoder); 221 222 drm_encoder_init(dev, encoder, &nv04_tv_funcs, DRM_MODE_ENCODER_TVDAC); 223 drm_encoder_helper_add(encoder, &nv04_tv_helper_funcs); 224 225 encoder->possible_crtcs = entry->heads; 226 encoder->possible_clones = 0; 227 nv_encoder->dcb = entry; 228 nv_encoder->or = ffs(entry->or) - 1; 229 230 /* Run the slave-specific initialization */ 231 ret = drm_i2c_encoder_init(dev, to_encoder_slave(encoder), 232 &port->adapter, &nv04_tv_encoder_info[type]); 233 if (ret < 0) 234 goto fail_cleanup; 235 236 /* Attach it to the specified connector. */ 237 get_slave_funcs(encoder)->create_resources(encoder, connector); 238 drm_mode_connector_attach_encoder(connector, encoder); 239 240 return 0; 241 242 fail_cleanup: 243 drm_encoder_cleanup(encoder); 244 kfree(nv_encoder); 245 return ret; 246 } 247