1 | /* $NetBSD: nouveau_dispnv04_tvnv04.c,v 1.2 2014/08/06 15:01:34 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (C) 2009 Francisco Jerez. |
5 | * All Rights Reserved. |
6 | * |
7 | * Permission is hereby granted, free of charge, to any person obtaining |
8 | * a copy of this software and associated documentation files (the |
9 | * "Software"), to deal in the Software without restriction, including |
10 | * without limitation the rights to use, copy, modify, merge, publish, |
11 | * distribute, sublicense, and/or sell copies of the Software, and to |
12 | * permit persons to whom the Software is furnished to do so, subject to |
13 | * the following conditions: |
14 | * |
15 | * The above copyright notice and this permission notice (including the |
16 | * next paragraph) shall be included in all copies or substantial |
17 | * portions of the Software. |
18 | * |
19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
20 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
22 | * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
23 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
24 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
25 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
26 | * |
27 | */ |
28 | |
29 | #include <sys/cdefs.h> |
30 | __KERNEL_RCSID(0, "$NetBSD: nouveau_dispnv04_tvnv04.c,v 1.2 2014/08/06 15:01:34 riastradh Exp $" ); |
31 | |
32 | #include <linux/err.h> |
33 | |
34 | #include <drm/drmP.h> |
35 | #include "nouveau_drm.h" |
36 | #include "nouveau_reg.h" |
37 | #include "nouveau_encoder.h" |
38 | #include "nouveau_connector.h" |
39 | #include "nouveau_crtc.h" |
40 | #include "hw.h" |
41 | #include <drm/drm_crtc_helper.h> |
42 | |
43 | #include <drm/i2c/ch7006.h> |
44 | |
45 | #include <subdev/i2c.h> |
46 | |
47 | static struct nouveau_i2c_board_info nv04_tv_encoder_info[] = { |
48 | { |
49 | { |
50 | I2C_BOARD_INFO("ch7006" , 0x75), |
51 | .platform_data = &(struct ch7006_encoder_params) { |
52 | CH7006_FORMAT_RGB24m12I, CH7006_CLOCK_MASTER, |
53 | 0, 0, 0, |
54 | CH7006_SYNC_SLAVE, CH7006_SYNC_SEPARATED, |
55 | CH7006_POUT_3_3V, CH7006_ACTIVE_HSYNC |
56 | } |
57 | }, |
58 | 0 |
59 | }, |
60 | { } |
61 | }; |
62 | |
63 | int nv04_tv_identify(struct drm_device *dev, int i2c_index) |
64 | { |
65 | struct nouveau_drm *drm = nouveau_drm(dev); |
66 | struct nouveau_i2c *i2c = nouveau_i2c(drm->device); |
67 | |
68 | return i2c->identify(i2c, i2c_index, "TV encoder" , |
69 | nv04_tv_encoder_info, NULL, NULL); |
70 | } |
71 | |
72 | |
73 | #define PLLSEL_TV_CRTC1_MASK \ |
74 | (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK1 \ |
75 | | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK1) |
76 | #define PLLSEL_TV_CRTC2_MASK \ |
77 | (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK2 \ |
78 | | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK2) |
79 | |
80 | static void nv04_tv_dpms(struct drm_encoder *encoder, int mode) |
81 | { |
82 | struct drm_device *dev = encoder->dev; |
83 | struct nouveau_drm *drm = nouveau_drm(dev); |
84 | struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
85 | struct nv04_mode_state *state = &nv04_display(dev)->mode_reg; |
86 | uint8_t crtc1A; |
87 | |
88 | NV_DEBUG(drm, "Setting dpms mode %d on TV encoder (output %d)\n" , |
89 | mode, nv_encoder->dcb->index); |
90 | |
91 | state->pllsel &= ~(PLLSEL_TV_CRTC1_MASK | PLLSEL_TV_CRTC2_MASK); |
92 | |
93 | if (mode == DRM_MODE_DPMS_ON) { |
94 | int head = nouveau_crtc(encoder->crtc)->index; |
95 | crtc1A = NVReadVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX); |
96 | |
97 | state->pllsel |= head ? PLLSEL_TV_CRTC2_MASK : |
98 | PLLSEL_TV_CRTC1_MASK; |
99 | |
100 | /* Inhibit hsync */ |
101 | crtc1A |= 0x80; |
102 | |
103 | NVWriteVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX, crtc1A); |
104 | } |
105 | |
106 | NVWriteRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT, state->pllsel); |
107 | |
108 | get_slave_funcs(encoder)->dpms(encoder, mode); |
109 | } |
110 | |
111 | static void nv04_tv_bind(struct drm_device *dev, int head, bool bind) |
112 | { |
113 | struct nv04_crtc_reg *state = &nv04_display(dev)->mode_reg.crtc_reg[head]; |
114 | |
115 | state->tv_setup = 0; |
116 | |
117 | if (bind) |
118 | state->CRTC[NV_CIO_CRE_49] |= 0x10; |
119 | else |
120 | state->CRTC[NV_CIO_CRE_49] &= ~0x10; |
121 | |
122 | NVWriteVgaCrtc(dev, head, NV_CIO_CRE_LCD__INDEX, |
123 | state->CRTC[NV_CIO_CRE_LCD__INDEX]); |
124 | NVWriteVgaCrtc(dev, head, NV_CIO_CRE_49, |
125 | state->CRTC[NV_CIO_CRE_49]); |
126 | NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP, |
127 | state->tv_setup); |
128 | } |
129 | |
130 | static void nv04_tv_prepare(struct drm_encoder *encoder) |
131 | { |
132 | struct drm_device *dev = encoder->dev; |
133 | int head = nouveau_crtc(encoder->crtc)->index; |
134 | struct drm_encoder_helper_funcs *helper = encoder->helper_private; |
135 | |
136 | helper->dpms(encoder, DRM_MODE_DPMS_OFF); |
137 | |
138 | nv04_dfp_disable(dev, head); |
139 | |
140 | if (nv_two_heads(dev)) |
141 | nv04_tv_bind(dev, head ^ 1, false); |
142 | |
143 | nv04_tv_bind(dev, head, true); |
144 | } |
145 | |
146 | static void nv04_tv_mode_set(struct drm_encoder *encoder, |
147 | struct drm_display_mode *mode, |
148 | struct drm_display_mode *adjusted_mode) |
149 | { |
150 | struct drm_device *dev = encoder->dev; |
151 | struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); |
152 | struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index]; |
153 | |
154 | regp->tv_htotal = adjusted_mode->htotal; |
155 | regp->tv_vtotal = adjusted_mode->vtotal; |
156 | |
157 | /* These delay the TV signals with respect to the VGA port, |
158 | * they might be useful if we ever allow a CRTC to drive |
159 | * multiple outputs. |
160 | */ |
161 | regp->tv_hskew = 1; |
162 | regp->tv_hsync_delay = 1; |
163 | regp->tv_hsync_delay2 = 64; |
164 | regp->tv_vskew = 1; |
165 | regp->tv_vsync_delay = 1; |
166 | |
167 | get_slave_funcs(encoder)->mode_set(encoder, mode, adjusted_mode); |
168 | } |
169 | |
170 | static void nv04_tv_commit(struct drm_encoder *encoder) |
171 | { |
172 | struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); |
173 | struct drm_device *dev = encoder->dev; |
174 | struct nouveau_drm *drm = nouveau_drm(dev); |
175 | struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc); |
176 | struct drm_encoder_helper_funcs *helper = encoder->helper_private; |
177 | |
178 | helper->dpms(encoder, DRM_MODE_DPMS_ON); |
179 | |
180 | NV_DEBUG(drm, "Output %s is running on CRTC %d using output %c\n" , |
181 | drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), nv_crtc->index, '@' + ffs(nv_encoder->dcb->or)); |
182 | } |
183 | |
184 | static void nv04_tv_destroy(struct drm_encoder *encoder) |
185 | { |
186 | get_slave_funcs(encoder)->destroy(encoder); |
187 | drm_encoder_cleanup(encoder); |
188 | |
189 | kfree(encoder->helper_private); |
190 | kfree(nouveau_encoder(encoder)); |
191 | } |
192 | |
193 | static const struct drm_encoder_funcs nv04_tv_funcs = { |
194 | .destroy = nv04_tv_destroy, |
195 | }; |
196 | |
197 | static const struct drm_encoder_helper_funcs nv04_tv_helper_funcs = { |
198 | .dpms = nv04_tv_dpms, |
199 | .save = drm_i2c_encoder_save, |
200 | .restore = drm_i2c_encoder_restore, |
201 | .mode_fixup = drm_i2c_encoder_mode_fixup, |
202 | .prepare = nv04_tv_prepare, |
203 | .commit = nv04_tv_commit, |
204 | .mode_set = nv04_tv_mode_set, |
205 | .detect = drm_i2c_encoder_detect, |
206 | }; |
207 | |
208 | int |
209 | nv04_tv_create(struct drm_connector *connector, struct dcb_output *entry) |
210 | { |
211 | struct nouveau_encoder *nv_encoder; |
212 | struct drm_encoder *encoder; |
213 | struct drm_device *dev = connector->dev; |
214 | struct nouveau_drm *drm = nouveau_drm(dev); |
215 | struct nouveau_i2c *i2c = nouveau_i2c(drm->device); |
216 | struct nouveau_i2c_port *port = i2c->find(i2c, entry->i2c_index); |
217 | int type, ret; |
218 | |
219 | /* Ensure that we can talk to this encoder */ |
220 | type = nv04_tv_identify(dev, entry->i2c_index); |
221 | if (type < 0) |
222 | return type; |
223 | |
224 | /* Allocate the necessary memory */ |
225 | nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL); |
226 | if (!nv_encoder) |
227 | return -ENOMEM; |
228 | |
229 | /* Initialize the common members */ |
230 | encoder = to_drm_encoder(nv_encoder); |
231 | |
232 | drm_encoder_init(dev, encoder, &nv04_tv_funcs, DRM_MODE_ENCODER_TVDAC); |
233 | drm_encoder_helper_add(encoder, &nv04_tv_helper_funcs); |
234 | |
235 | encoder->possible_crtcs = entry->heads; |
236 | encoder->possible_clones = 0; |
237 | nv_encoder->dcb = entry; |
238 | nv_encoder->or = ffs(entry->or) - 1; |
239 | |
240 | /* Run the slave-specific initialization */ |
241 | ret = drm_i2c_encoder_init(dev, to_encoder_slave(encoder), |
242 | &port->adapter, |
243 | &nv04_tv_encoder_info[type].dev); |
244 | if (ret < 0) |
245 | goto fail_cleanup; |
246 | |
247 | /* Attach it to the specified connector. */ |
248 | get_slave_funcs(encoder)->create_resources(encoder, connector); |
249 | drm_mode_connector_attach_encoder(connector, encoder); |
250 | |
251 | return 0; |
252 | |
253 | fail_cleanup: |
254 | drm_encoder_cleanup(encoder); |
255 | kfree(nv_encoder); |
256 | return ret; |
257 | } |
258 | |