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_modeset_helper_vtables.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: head ^ 1, bind: false); |
136 | |
137 | nv04_tv_bind(dev, head, bind: 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(objp: encoder->helper_private); |
185 | kfree(objp: 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, i2c_index: 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, funcs: &nv04_tv_funcs, DRM_MODE_ENCODER_TVDAC, |
226 | NULL); |
227 | drm_encoder_helper_add(encoder, funcs: &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(objp: nv_encoder); |
253 | return ret; |
254 | } |
255 | |