drm/nouveau: merge parsed_dcb and bios_parsed_dcb into dcb_table
[safe/jmp/linux-2.6] / drivers / gpu / drm / nouveau / nv04_tv.c
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 */
265         adap = &dev_priv->VBIOS.dcb.i2c[i2c_index].chan->adapter;
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 }