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 "nouveau_drv.h" 28 #include "nouveau_reg.h" 29 #include "nouveau_encoder.h" 30 #include "nouveau_connector.h" 31 #include "nouveau_crtc.h" 32 #include "hw.h" 33 #include <drm/drm_crtc_helper.h> 34 35 #include <drm/i2c/ch7006.h> 36 37 static struct nvkm_i2c_bus_probe nv04_tv_encoder_info[] = { 38 { 39 { 40 I2C_BOARD_INFO("ch7006", 0x75), 41 .platform_data = &(struct ch7006_encoder_params) { 42 CH7006_FORMAT_RGB24m12I, CH7006_CLOCK_MASTER, 43 0, 0, 0, 44 CH7006_SYNC_SLAVE, CH7006_SYNC_SEPARATED, 45 CH7006_POUT_3_3V, CH7006_ACTIVE_HSYNC 46 } 47 }, 48 0 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 nvkm_i2c *i2c = nvxx_i2c(&drm->client.device); 57 struct nvkm_i2c_bus *bus = nvkm_i2c_bus_find(i2c, i2c_index); 58 if (bus) { 59 return nvkm_i2c_bus_probe(bus, "TV encoder", 60 nv04_tv_encoder_info, 61 NULL, NULL); 62 } 63 return -ENODEV; 64 } 65 66 67 #define PLLSEL_TV_CRTC1_MASK \ 68 (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK1 \ 69 | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK1) 70 #define PLLSEL_TV_CRTC2_MASK \ 71 (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK2 \ 72 | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK2) 73 74 static void nv04_tv_dpms(struct drm_encoder *encoder, int mode) 75 { 76 struct drm_device *dev = encoder->dev; 77 struct nouveau_drm *drm = nouveau_drm(dev); 78 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 79 struct nv04_mode_state *state = &nv04_display(dev)->mode_reg; 80 uint8_t crtc1A; 81 82 NV_DEBUG(drm, "Setting dpms mode %d on TV encoder (output %d)\n", 83 mode, nv_encoder->dcb->index); 84 85 state->pllsel &= ~(PLLSEL_TV_CRTC1_MASK | PLLSEL_TV_CRTC2_MASK); 86 87 if (mode == DRM_MODE_DPMS_ON) { 88 int head = nouveau_crtc(encoder->crtc)->index; 89 crtc1A = NVReadVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX); 90 91 state->pllsel |= head ? PLLSEL_TV_CRTC2_MASK : 92 PLLSEL_TV_CRTC1_MASK; 93 94 /* Inhibit hsync */ 95 crtc1A |= 0x80; 96 97 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX, crtc1A); 98 } 99 100 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT, state->pllsel); 101 102 get_slave_funcs(encoder)->dpms(encoder, mode); 103 } 104 105 static void nv04_tv_bind(struct drm_device *dev, int head, bool bind) 106 { 107 struct nv04_crtc_reg *state = &nv04_display(dev)->mode_reg.crtc_reg[head]; 108 109 state->tv_setup = 0; 110 111 if (bind) 112 state->CRTC[NV_CIO_CRE_49] |= 0x10; 113 else 114 state->CRTC[NV_CIO_CRE_49] &= ~0x10; 115 116 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_LCD__INDEX, 117 state->CRTC[NV_CIO_CRE_LCD__INDEX]); 118 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_49, 119 state->CRTC[NV_CIO_CRE_49]); 120 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP, 121 state->tv_setup); 122 } 123 124 static void nv04_tv_prepare(struct drm_encoder *encoder) 125 { 126 struct drm_device *dev = encoder->dev; 127 int head = nouveau_crtc(encoder->crtc)->index; 128 const struct drm_encoder_helper_funcs *helper = encoder->helper_private; 129 130 helper->dpms(encoder, DRM_MODE_DPMS_OFF); 131 132 nv04_dfp_disable(dev, head); 133 134 if (nv_two_heads(dev)) 135 nv04_tv_bind(dev, head ^ 1, false); 136 137 nv04_tv_bind(dev, head, true); 138 } 139 140 static void nv04_tv_mode_set(struct drm_encoder *encoder, 141 struct drm_display_mode *mode, 142 struct drm_display_mode *adjusted_mode) 143 { 144 struct drm_device *dev = encoder->dev; 145 struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); 146 struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index]; 147 148 regp->tv_htotal = adjusted_mode->htotal; 149 regp->tv_vtotal = adjusted_mode->vtotal; 150 151 /* These delay the TV signals with respect to the VGA port, 152 * they might be useful if we ever allow a CRTC to drive 153 * multiple outputs. 154 */ 155 regp->tv_hskew = 1; 156 regp->tv_hsync_delay = 1; 157 regp->tv_hsync_delay2 = 64; 158 regp->tv_vskew = 1; 159 regp->tv_vsync_delay = 1; 160 161 get_slave_funcs(encoder)->mode_set(encoder, mode, adjusted_mode); 162 } 163 164 static void nv04_tv_commit(struct drm_encoder *encoder) 165 { 166 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); 167 struct drm_device *dev = encoder->dev; 168 struct nouveau_drm *drm = nouveau_drm(dev); 169 struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); 170 const struct drm_encoder_helper_funcs *helper = encoder->helper_private; 171 172 helper->dpms(encoder, DRM_MODE_DPMS_ON); 173 174 NV_DEBUG(drm, "Output %s is running on CRTC %d using output %c\n", 175 nv04_encoder_get_connector(nv_encoder)->base.name, 176 nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); 177 } 178 179 static void nv04_tv_destroy(struct drm_encoder *encoder) 180 { 181 get_slave_funcs(encoder)->destroy(encoder); 182 drm_encoder_cleanup(encoder); 183 184 kfree(encoder->helper_private); 185 kfree(nouveau_encoder(encoder)); 186 } 187 188 static const struct drm_encoder_funcs nv04_tv_funcs = { 189 .destroy = nv04_tv_destroy, 190 }; 191 192 static const struct drm_encoder_helper_funcs nv04_tv_helper_funcs = { 193 .dpms = nv04_tv_dpms, 194 .mode_fixup = drm_i2c_encoder_mode_fixup, 195 .prepare = nv04_tv_prepare, 196 .commit = nv04_tv_commit, 197 .mode_set = nv04_tv_mode_set, 198 .detect = drm_i2c_encoder_detect, 199 }; 200 201 int 202 nv04_tv_create(struct drm_connector *connector, struct dcb_output *entry) 203 { 204 struct nouveau_encoder *nv_encoder; 205 struct drm_encoder *encoder; 206 struct drm_device *dev = connector->dev; 207 struct nouveau_drm *drm = nouveau_drm(dev); 208 struct nvkm_i2c *i2c = nvxx_i2c(&drm->client.device); 209 struct nvkm_i2c_bus *bus = nvkm_i2c_bus_find(i2c, entry->i2c_index); 210 int type, ret; 211 212 /* Ensure that we can talk to this encoder */ 213 type = nv04_tv_identify(dev, entry->i2c_index); 214 if (type < 0) 215 return type; 216 217 /* Allocate the necessary memory */ 218 nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL); 219 if (!nv_encoder) 220 return -ENOMEM; 221 222 /* Initialize the common members */ 223 encoder = to_drm_encoder(nv_encoder); 224 225 drm_encoder_init(dev, encoder, &nv04_tv_funcs, DRM_MODE_ENCODER_TVDAC, 226 NULL); 227 drm_encoder_helper_add(encoder, &nv04_tv_helper_funcs); 228 229 nv_encoder->enc_save = drm_i2c_encoder_save; 230 nv_encoder->enc_restore = drm_i2c_encoder_restore; 231 232 encoder->possible_crtcs = entry->heads; 233 encoder->possible_clones = 0; 234 nv_encoder->dcb = entry; 235 nv_encoder->or = ffs(entry->or) - 1; 236 237 /* Run the slave-specific initialization */ 238 ret = drm_i2c_encoder_init(dev, to_encoder_slave(encoder), 239 &bus->i2c, 240 &nv04_tv_encoder_info[type].dev); 241 if (ret < 0) 242 goto fail_cleanup; 243 244 /* Attach it to the specified connector. */ 245 get_slave_funcs(encoder)->create_resources(encoder, connector); 246 drm_connector_attach_encoder(connector, encoder); 247 248 return 0; 249 250 fail_cleanup: 251 drm_encoder_cleanup(encoder); 252 kfree(nv_encoder); 253 return ret; 254 } 255