2 * Copyright (C) 2009 Francisco Jerez.
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:
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.
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.
28 #include "nouveau_drm.h"
29 #include "nouveau_reg.h"
30 #include "nouveau_encoder.h"
31 #include "nouveau_connector.h"
32 #include "nouveau_crtc.h"
33 #include "nouveau_hw.h"
34 #include <drm/drm_crtc_helper.h>
36 #include <drm/i2c/ch7006.h>
38 #include <subdev/i2c.h>
40 static struct i2c_board_info nv04_tv_encoder_info[] = {
42 I2C_BOARD_INFO("ch7006", 0x75),
43 .platform_data = &(struct ch7006_encoder_params) {
44 CH7006_FORMAT_RGB24m12I, CH7006_CLOCK_MASTER,
46 CH7006_SYNC_SLAVE, CH7006_SYNC_SEPARATED,
47 CH7006_POUT_3_3V, CH7006_ACTIVE_HSYNC
53 int nv04_tv_identify(struct drm_device *dev, int i2c_index)
55 struct nouveau_drm *drm = nouveau_drm(dev);
56 struct nouveau_i2c *i2c = nouveau_i2c(drm->device);
58 return i2c->identify(i2c, i2c_index, "TV encoder",
59 nv04_tv_encoder_info, NULL);
63 #define PLLSEL_TV_CRTC1_MASK \
64 (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK1 \
65 | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK1)
66 #define PLLSEL_TV_CRTC2_MASK \
67 (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK2 \
68 | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK2)
70 static void nv04_tv_dpms(struct drm_encoder *encoder, int mode)
72 struct drm_device *dev = encoder->dev;
73 struct nouveau_drm *drm = nouveau_drm(dev);
74 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
75 struct nv04_mode_state *state = &nv04_display(dev)->mode_reg;
78 NV_DEBUG(drm, "Setting dpms mode %d on TV encoder (output %d)\n",
79 mode, nv_encoder->dcb->index);
81 state->pllsel &= ~(PLLSEL_TV_CRTC1_MASK | PLLSEL_TV_CRTC2_MASK);
83 if (mode == DRM_MODE_DPMS_ON) {
84 int head = nouveau_crtc(encoder->crtc)->index;
85 crtc1A = NVReadVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX);
87 state->pllsel |= head ? PLLSEL_TV_CRTC2_MASK :
93 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX, crtc1A);
96 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT, state->pllsel);
98 get_slave_funcs(encoder)->dpms(encoder, mode);
101 static void nv04_tv_bind(struct drm_device *dev, int head, bool bind)
103 struct nv04_crtc_reg *state = &nv04_display(dev)->mode_reg.crtc_reg[head];
108 state->CRTC[NV_CIO_CRE_49] |= 0x10;
110 state->CRTC[NV_CIO_CRE_49] &= ~0x10;
112 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_LCD__INDEX,
113 state->CRTC[NV_CIO_CRE_LCD__INDEX]);
114 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_49,
115 state->CRTC[NV_CIO_CRE_49]);
116 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP,
120 static void nv04_tv_prepare(struct drm_encoder *encoder)
122 struct drm_device *dev = encoder->dev;
123 int head = nouveau_crtc(encoder->crtc)->index;
124 struct drm_encoder_helper_funcs *helper = encoder->helper_private;
126 helper->dpms(encoder, DRM_MODE_DPMS_OFF);
128 nv04_dfp_disable(dev, head);
130 if (nv_two_heads(dev))
131 nv04_tv_bind(dev, head ^ 1, false);
133 nv04_tv_bind(dev, head, true);
136 static void nv04_tv_mode_set(struct drm_encoder *encoder,
137 struct drm_display_mode *mode,
138 struct drm_display_mode *adjusted_mode)
140 struct drm_device *dev = encoder->dev;
141 struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
142 struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index];
144 regp->tv_htotal = adjusted_mode->htotal;
145 regp->tv_vtotal = adjusted_mode->vtotal;
147 /* These delay the TV signals with respect to the VGA port,
148 * they might be useful if we ever allow a CRTC to drive
152 regp->tv_hsync_delay = 1;
153 regp->tv_hsync_delay2 = 64;
155 regp->tv_vsync_delay = 1;
157 get_slave_funcs(encoder)->mode_set(encoder, mode, adjusted_mode);
160 static void nv04_tv_commit(struct drm_encoder *encoder)
162 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
163 struct drm_device *dev = encoder->dev;
164 struct nouveau_drm *drm = nouveau_drm(dev);
165 struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
166 struct drm_encoder_helper_funcs *helper = encoder->helper_private;
168 helper->dpms(encoder, DRM_MODE_DPMS_ON);
170 NV_DEBUG(drm, "Output %s is running on CRTC %d using output %c\n",
171 drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), nv_crtc->index, '@' + ffs(nv_encoder->dcb->or));
174 static void nv04_tv_destroy(struct drm_encoder *encoder)
176 get_slave_funcs(encoder)->destroy(encoder);
177 drm_encoder_cleanup(encoder);
179 kfree(encoder->helper_private);
180 kfree(nouveau_encoder(encoder));
183 static const struct drm_encoder_funcs nv04_tv_funcs = {
184 .destroy = nv04_tv_destroy,
188 nv04_tv_create(struct drm_connector *connector, struct dcb_output *entry)
190 struct nouveau_encoder *nv_encoder;
191 struct drm_encoder *encoder;
192 struct drm_device *dev = connector->dev;
193 struct drm_encoder_helper_funcs *hfuncs;
194 struct drm_encoder_slave_funcs *sfuncs;
195 struct nouveau_drm *drm = nouveau_drm(dev);
196 struct nouveau_i2c *i2c = nouveau_i2c(drm->device);
197 struct nouveau_i2c_port *port = i2c->find(i2c, entry->i2c_index);
200 /* Ensure that we can talk to this encoder */
201 type = nv04_tv_identify(dev, entry->i2c_index);
205 /* Allocate the necessary memory */
206 nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
210 hfuncs = kzalloc(sizeof(*hfuncs), GFP_KERNEL);
216 /* Initialize the common members */
217 encoder = to_drm_encoder(nv_encoder);
219 drm_encoder_init(dev, encoder, &nv04_tv_funcs, DRM_MODE_ENCODER_TVDAC);
220 drm_encoder_helper_add(encoder, hfuncs);
222 encoder->possible_crtcs = entry->heads;
223 encoder->possible_clones = 0;
224 nv_encoder->dcb = entry;
225 nv_encoder->or = ffs(entry->or) - 1;
227 /* Run the slave-specific initialization */
228 ret = drm_i2c_encoder_init(dev, to_encoder_slave(encoder),
229 &port->adapter, &nv04_tv_encoder_info[type]);
233 /* Fill the function pointers */
234 sfuncs = get_slave_funcs(encoder);
236 *hfuncs = (struct drm_encoder_helper_funcs) {
237 .dpms = nv04_tv_dpms,
238 .save = sfuncs->save,
239 .restore = sfuncs->restore,
240 .mode_fixup = sfuncs->mode_fixup,
241 .prepare = nv04_tv_prepare,
242 .commit = nv04_tv_commit,
243 .mode_set = nv04_tv_mode_set,
244 .detect = sfuncs->detect,
247 /* Attach it to the specified connector. */
248 sfuncs->create_resources(encoder, connector);
249 drm_mode_connector_attach_encoder(connector, encoder);
254 drm_encoder_cleanup(encoder);