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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 "drmP.h" | |
28 | #include "nouveau_drv.h" | |
29 | #include "nouveau_encoder.h" | |
30 | #include "nouveau_connector.h" | |
31 | #include "nouveau_crtc.h" | |
32 | #include "nouveau_hw.h" | |
33 | #include "drm_crtc_helper.h" | |
34 | ||
35 | #include "i2c/ch7006.h" | |
36 | ||
37 | static struct { | |
38 | struct i2c_board_info board_info; | |
39 | struct drm_encoder_funcs funcs; | |
40 | struct drm_encoder_helper_funcs hfuncs; | |
41 | void *params; | |
42 | ||
43 | } nv04_tv_encoder_info[] = { | |
44 | { | |
45 | .board_info = { I2C_BOARD_INFO("ch7006", 0x75) }, | |
46 | .params = &(struct ch7006_encoder_params) { | |
47 | CH7006_FORMAT_RGB24m12I, CH7006_CLOCK_MASTER, | |
48 | 0, 0, 0, | |
49 | CH7006_SYNC_SLAVE, CH7006_SYNC_SEPARATED, | |
50 | CH7006_POUT_3_3V, CH7006_ACTIVE_HSYNC | |
51 | }, | |
52 | }, | |
53 | }; | |
54 | ||
55 | static bool probe_i2c_addr(struct i2c_adapter *adapter, int addr) | |
56 | { | |
57 | struct i2c_msg msg = { | |
58 | .addr = addr, | |
59 | .len = 0, | |
60 | }; | |
61 | ||
62 | return i2c_transfer(adapter, &msg, 1) == 1; | |
63 | } | |
64 | ||
65 | int nv04_tv_identify(struct drm_device *dev, int i2c_index) | |
66 | { | |
67 | struct nouveau_i2c_chan *i2c; | |
68 | bool was_locked; | |
69 | int i, ret; | |
70 | ||
71 | NV_TRACE(dev, "Probing TV encoders on I2C bus: %d\n", i2c_index); | |
72 | ||
73 | i2c = nouveau_i2c_find(dev, i2c_index); | |
74 | if (!i2c) | |
75 | return -ENODEV; | |
76 | ||
77 | was_locked = NVLockVgaCrtcs(dev, false); | |
78 | ||
79 | for (i = 0; i < ARRAY_SIZE(nv04_tv_encoder_info); i++) { | |
80 | if (probe_i2c_addr(&i2c->adapter, | |
81 | nv04_tv_encoder_info[i].board_info.addr)) { | |
82 | ret = i; | |
83 | break; | |
84 | } | |
85 | } | |
86 | ||
87 | if (i < ARRAY_SIZE(nv04_tv_encoder_info)) { | |
88 | NV_TRACE(dev, "Detected TV encoder: %s\n", | |
89 | nv04_tv_encoder_info[i].board_info.type); | |
90 | ||
91 | } else { | |
92 | NV_TRACE(dev, "No TV encoders found.\n"); | |
93 | i = -ENODEV; | |
94 | } | |
95 | ||
96 | NVLockVgaCrtcs(dev, was_locked); | |
97 | return i; | |
98 | } | |
99 | ||
100 | #define PLLSEL_TV_CRTC1_MASK \ | |
101 | (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK1 \ | |
102 | | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK1) | |
103 | #define PLLSEL_TV_CRTC2_MASK \ | |
104 | (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK2 \ | |
105 | | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK2) | |
106 | ||
107 | static void nv04_tv_dpms(struct drm_encoder *encoder, int mode) | |
108 | { | |
109 | struct drm_device *dev = encoder->dev; | |
110 | struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); | |
111 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
112 | struct nv04_mode_state *state = &dev_priv->mode_reg; | |
113 | uint8_t crtc1A; | |
114 | ||
115 | NV_INFO(dev, "Setting dpms mode %d on TV encoder (output %d)\n", | |
116 | mode, nv_encoder->dcb->index); | |
117 | ||
118 | state->pllsel &= ~(PLLSEL_TV_CRTC1_MASK | PLLSEL_TV_CRTC2_MASK); | |
119 | ||
120 | if (mode == DRM_MODE_DPMS_ON) { | |
121 | int head = nouveau_crtc(encoder->crtc)->index; | |
122 | crtc1A = NVReadVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX); | |
123 | ||
124 | state->pllsel |= head ? PLLSEL_TV_CRTC2_MASK : | |
125 | PLLSEL_TV_CRTC1_MASK; | |
126 | ||
127 | /* Inhibit hsync */ | |
128 | crtc1A |= 0x80; | |
129 | ||
130 | NVWriteVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX, crtc1A); | |
131 | } | |
132 | ||
133 | NVWriteRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT, state->pllsel); | |
134 | ||
135 | to_encoder_slave(encoder)->slave_funcs->dpms(encoder, mode); | |
136 | } | |
137 | ||
138 | static void nv04_tv_bind(struct drm_device *dev, int head, bool bind) | |
139 | { | |
140 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
141 | struct nv04_crtc_reg *state = &dev_priv->mode_reg.crtc_reg[head]; | |
142 | ||
143 | state->tv_setup = 0; | |
144 | ||
145 | if (bind) { | |
146 | state->CRTC[NV_CIO_CRE_LCD__INDEX] = 0; | |
147 | state->CRTC[NV_CIO_CRE_49] |= 0x10; | |
148 | } else { | |
149 | state->CRTC[NV_CIO_CRE_49] &= ~0x10; | |
150 | } | |
151 | ||
152 | NVWriteVgaCrtc(dev, head, NV_CIO_CRE_LCD__INDEX, | |
153 | state->CRTC[NV_CIO_CRE_LCD__INDEX]); | |
154 | NVWriteVgaCrtc(dev, head, NV_CIO_CRE_49, | |
155 | state->CRTC[NV_CIO_CRE_49]); | |
156 | NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP, | |
157 | state->tv_setup); | |
158 | } | |
159 | ||
160 | static void nv04_tv_prepare(struct drm_encoder *encoder) | |
161 | { | |
162 | struct drm_device *dev = encoder->dev; | |
163 | int head = nouveau_crtc(encoder->crtc)->index; | |
164 | struct drm_encoder_helper_funcs *helper = encoder->helper_private; | |
165 | ||
166 | helper->dpms(encoder, DRM_MODE_DPMS_OFF); | |
167 | ||
168 | nv04_dfp_disable(dev, head); | |
169 | ||
170 | if (nv_two_heads(dev)) | |
171 | nv04_tv_bind(dev, head ^ 1, false); | |
172 | ||
173 | nv04_tv_bind(dev, head, true); | |
174 | } | |
175 | ||
176 | static void nv04_tv_mode_set(struct drm_encoder *encoder, | |
177 | struct drm_display_mode *mode, | |
178 | struct drm_display_mode *adjusted_mode) | |
179 | { | |
180 | struct drm_device *dev = encoder->dev; | |
181 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
182 | struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); | |
183 | struct nv04_crtc_reg *regp = &dev_priv->mode_reg.crtc_reg[nv_crtc->index]; | |
184 | ||
185 | regp->tv_htotal = adjusted_mode->htotal; | |
186 | regp->tv_vtotal = adjusted_mode->vtotal; | |
187 | ||
188 | /* These delay the TV signals with respect to the VGA port, | |
189 | * they might be useful if we ever allow a CRTC to drive | |
190 | * multiple outputs. | |
191 | */ | |
192 | regp->tv_hskew = 1; | |
193 | regp->tv_hsync_delay = 1; | |
194 | regp->tv_hsync_delay2 = 64; | |
195 | regp->tv_vskew = 1; | |
196 | regp->tv_vsync_delay = 1; | |
197 | ||
198 | to_encoder_slave(encoder)->slave_funcs->mode_set(encoder, mode, adjusted_mode); | |
199 | } | |
200 | ||
201 | static void nv04_tv_commit(struct drm_encoder *encoder) | |
202 | { | |
203 | struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); | |
204 | struct drm_device *dev = encoder->dev; | |
205 | struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); | |
206 | struct drm_encoder_helper_funcs *helper = encoder->helper_private; | |
207 | ||
208 | helper->dpms(encoder, DRM_MODE_DPMS_ON); | |
209 | ||
210 | NV_INFO(dev, "Output %s is running on CRTC %d using output %c\n", | |
211 | drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), nv_crtc->index, | |
212 | '@' + ffs(nv_encoder->dcb->or)); | |
213 | } | |
214 | ||
215 | static void nv04_tv_destroy(struct drm_encoder *encoder) | |
216 | { | |
217 | struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); | |
218 | ||
219 | to_encoder_slave(encoder)->slave_funcs->destroy(encoder); | |
220 | ||
221 | drm_encoder_cleanup(encoder); | |
222 | ||
223 | kfree(nv_encoder); | |
224 | } | |
225 | ||
226 | int nv04_tv_create(struct drm_device *dev, struct dcb_entry *entry) | |
227 | { | |
228 | struct nouveau_encoder *nv_encoder; | |
229 | struct drm_encoder *encoder; | |
230 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
231 | struct i2c_adapter *adap; | |
232 | struct drm_encoder_funcs *funcs = NULL; | |
233 | struct drm_encoder_helper_funcs *hfuncs = NULL; | |
234 | struct drm_encoder_slave_funcs *sfuncs = NULL; | |
235 | int i2c_index = entry->i2c_index; | |
236 | int type, ret; | |
237 | bool was_locked; | |
238 | ||
239 | /* Ensure that we can talk to this encoder */ | |
240 | type = nv04_tv_identify(dev, i2c_index); | |
241 | if (type < 0) | |
242 | return type; | |
243 | ||
244 | /* Allocate the necessary memory */ | |
245 | nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL); | |
246 | if (!nv_encoder) | |
247 | return -ENOMEM; | |
248 | ||
249 | /* Initialize the common members */ | |
250 | encoder = to_drm_encoder(nv_encoder); | |
251 | ||
252 | funcs = &nv04_tv_encoder_info[type].funcs; | |
253 | hfuncs = &nv04_tv_encoder_info[type].hfuncs; | |
254 | ||
255 | drm_encoder_init(dev, encoder, funcs, DRM_MODE_ENCODER_TVDAC); | |
256 | drm_encoder_helper_add(encoder, hfuncs); | |
257 | ||
258 | encoder->possible_crtcs = entry->heads; | |
259 | encoder->possible_clones = 0; | |
260 | ||
261 | nv_encoder->dcb = entry; | |
262 | nv_encoder->or = ffs(entry->or) - 1; | |
263 | ||
264 | /* Run the slave-specific initialization */ | |
04a39c57 | 265 | adap = &dev_priv->vbios.dcb.i2c[i2c_index].chan->adapter; |
6ee73861 BS |
266 | |
267 | was_locked = NVLockVgaCrtcs(dev, false); | |
268 | ||
269 | ret = drm_i2c_encoder_init(encoder->dev, to_encoder_slave(encoder), adap, | |
270 | &nv04_tv_encoder_info[type].board_info); | |
271 | ||
272 | NVLockVgaCrtcs(dev, was_locked); | |
273 | ||
274 | if (ret < 0) | |
275 | goto fail; | |
276 | ||
277 | /* Fill the function pointers */ | |
278 | sfuncs = to_encoder_slave(encoder)->slave_funcs; | |
279 | ||
280 | *funcs = (struct drm_encoder_funcs) { | |
281 | .destroy = nv04_tv_destroy, | |
282 | }; | |
283 | ||
284 | *hfuncs = (struct drm_encoder_helper_funcs) { | |
285 | .dpms = nv04_tv_dpms, | |
286 | .save = sfuncs->save, | |
287 | .restore = sfuncs->restore, | |
288 | .mode_fixup = sfuncs->mode_fixup, | |
289 | .prepare = nv04_tv_prepare, | |
290 | .commit = nv04_tv_commit, | |
291 | .mode_set = nv04_tv_mode_set, | |
292 | .detect = sfuncs->detect, | |
293 | }; | |
294 | ||
295 | /* Set the slave encoder configuration */ | |
296 | sfuncs->set_config(encoder, nv04_tv_encoder_info[type].params); | |
297 | ||
298 | return 0; | |
299 | ||
300 | fail: | |
301 | drm_encoder_cleanup(encoder); | |
302 | ||
303 | kfree(nv_encoder); | |
304 | return ret; | |
305 | } |