/*
* Copyright (C) 2009 Francisco Jerez.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_encoder.h"
#include "nouveau_connector.h"
#include "nouveau_crtc.h"
#include "nouveau_hw.h"
#include "drm_crtc_helper.h"
#include "i2c/ch7006.h"
static struct {
struct i2c_board_info board_info;
struct drm_encoder_funcs funcs;
struct drm_encoder_helper_funcs hfuncs;
void *params;
} nv04_tv_encoder_info[] = {
{
.board_info = { I2C_BOARD_INFO("ch7006", 0x75) },
.params = &(struct ch7006_encoder_params) {
CH7006_FORMAT_RGB24m12I, CH7006_CLOCK_MASTER,
0, 0, 0,
CH7006_SYNC_SLAVE, CH7006_SYNC_SEPARATED,
CH7006_POUT_3_3V, CH7006_ACTIVE_HSYNC
},
},
};
static bool probe_i2c_addr(struct i2c_adapter *adapter, int addr)
{
struct i2c_msg msg = {
.addr = addr,
.len = 0,
};
return i2c_transfer(adapter, &msg, 1) == 1;
}
int nv04_tv_identify(struct drm_device *dev, int i2c_index)
{
struct nouveau_i2c_chan *i2c;
bool was_locked;
int i, ret;
NV_TRACE(dev, "Probing TV encoders on I2C bus: %d\n", i2c_index);
i2c = nouveau_i2c_find(dev, i2c_index);
if (!i2c)
return -ENODEV;
was_locked = NVLockVgaCrtcs(dev, false);
for (i = 0; i < ARRAY_SIZE(nv04_tv_encoder_info); i++) {
if (probe_i2c_addr(&i2c->adapter,
nv04_tv_encoder_info[i].board_info.addr)) {
ret = i;
break;
}
}
if (i < ARRAY_SIZE(nv04_tv_encoder_info)) {
NV_TRACE(dev, "Detected TV encoder: %s\n",
nv04_tv_encoder_info[i].board_info.type);
} else {
NV_TRACE(dev, "No TV encoders found.\n");
i = -ENODEV;
}
NVLockVgaCrtcs(dev, was_locked);
return i;
}
#define PLLSEL_TV_CRTC1_MASK \
(NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK1 \
| NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK1)
#define PLLSEL_TV_CRTC2_MASK \
(NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK2 \
| NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK2)
static void nv04_tv_dpms(struct drm_encoder *encoder, int mode)
{
struct drm_device *dev = encoder->dev;
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv04_mode_state *state = &dev_priv->mode_reg;
uint8_t crtc1A;
NV_INFO(dev, "Setting dpms mode %d on TV encoder (output %d)\n",
mode, nv_encoder->dcb->index);
state->pllsel &= ~(PLLSEL_TV_CRTC1_MASK | PLLSEL_TV_CRTC2_MASK);
if (mode == DRM_MODE_DPMS_ON) {
int head = nouveau_crtc(encoder->crtc)->index;
crtc1A = NVReadVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX);
state->pllsel |= head ? PLLSEL_TV_CRTC2_MASK :
PLLSEL_TV_CRTC1_MASK;
/* Inhibit hsync */
crtc1A |= 0x80;
NVWriteVgaCrtc(dev, head, NV_CIO_CRE_RPC1_INDEX, crtc1A);
}
NVWriteRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT, state->pllsel);
to_encoder_slave(encoder)->slave_funcs->dpms(encoder, mode);
}
static void nv04_tv_bind(struct drm_device *dev, int head, bool bind)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv04_crtc_reg *state = &dev_priv->mode_reg.crtc_reg[head];
state->tv_setup = 0;
if (bind) {
state->CRTC[NV_CIO_CRE_LCD__INDEX] = 0;
state->CRTC[NV_CIO_CRE_49] |= 0x10;
} else {
state->CRTC[NV_CIO_CRE_49] &= ~0x10;
}
NVWriteVgaCrtc(dev, head, NV_CIO_CRE_LCD__INDEX,
state->CRTC[NV_CIO_CRE_LCD__INDEX]);
NVWriteVgaCrtc(dev, head, NV_CIO_CRE_49,
state->CRTC[NV_CIO_CRE_49]);
NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP,
state->tv_setup);
}
static void nv04_tv_prepare(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
int head = nouveau_crtc(encoder->crtc)->index;
struct drm_encoder_helper_funcs *helper = encoder->helper_private;
helper->dpms(encoder, DRM_MODE_DPMS_OFF);
nv04_dfp_disable(dev, head);
if (nv_two_heads(dev))
nv04_tv_bind(dev, head ^ 1, false);
nv04_tv_bind(dev, head, true);
}
static void nv04_tv_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = encoder->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
struct nv04_crtc_reg *regp = &dev_priv->mode_reg.crtc_reg[nv_crtc->index];
regp->tv_htotal = adjusted_mode->htotal;
regp->tv_vtotal = adjusted_mode->vtotal;
/* These delay the TV signals with respect to the VGA port,
* they might be useful if we ever allow a CRTC to drive
* multiple outputs.
*/
regp->tv_hskew = 1;
regp->tv_hsync_delay = 1;
regp->tv_hsync_delay2 = 64;
regp->tv_vskew = 1;
regp->tv_vsync_delay = 1;
to_encoder_slave(encoder)->slave_funcs->mode_set(encoder, mode, adjusted_mode);
}
static void nv04_tv_commit(struct drm_encoder *encoder)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct drm_device *dev = encoder->dev;
struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
struct drm_encoder_helper_funcs *helper = encoder->helper_private;
helper->dpms(encoder, DRM_MODE_DPMS_ON);
NV_INFO(dev, "Output %s is running on CRTC %d using output %c\n",
drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), nv_crtc->index,
'@' + ffs(nv_encoder->dcb->or));
}
static void nv04_tv_destroy(struct drm_encoder *encoder)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
to_encoder_slave(encoder)->slave_funcs->destroy(encoder);
drm_encoder_cleanup(encoder);
kfree(nv_encoder);
}
int nv04_tv_create(struct drm_device *dev, struct dcb_entry *entry)
{
struct nouveau_encoder *nv_encoder;
struct drm_encoder *encoder;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct i2c_adapter *adap;
struct drm_encoder_funcs *funcs = NULL;
struct drm_encoder_helper_funcs *hfuncs = NULL;
struct drm_encoder_slave_funcs *sfuncs = NULL;
int i2c_index = entry->i2c_index;
int type, ret;
bool was_locked;
/* Ensure that we can talk to this encoder */
type = nv04_tv_identify(dev, i2c_index);
if (type < 0)
return type;
/* Allocate the necessary memory */
nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
if (!nv_encoder)
return -ENOMEM;
/* Initialize the common members */
encoder = to_drm_encoder(nv_encoder);
funcs = &nv04_tv_encoder_info[type].funcs;
hfuncs = &nv04_tv_encoder_info[type].hfuncs;
drm_encoder_init(dev, encoder, funcs, DRM_MODE_ENCODER_TVDAC);
drm_encoder_helper_add(encoder, hfuncs);
encoder->possible_crtcs = entry->heads;
encoder->possible_clones = 0;
nv_encoder->dcb = entry;
nv_encoder->or = ffs(entry->or) - 1;
/* Run the slave-specific initialization */
adap = &dev_priv->vbios.dcb.i2c[i2c_index].chan->adapter;
was_locked = NVLockVgaCrtcs(dev, false);
ret = drm_i2c_encoder_init(encoder->dev, to_encoder_slave(encoder), adap,
&nv04_tv_encoder_info[type].board_info);
NVLockVgaCrtcs(dev, was_locked);
if (ret < 0)
goto fail;
/* Fill the function pointers */
sfuncs = to_encoder_slave(encoder)->slave_funcs;
*funcs = (struct drm_encoder_funcs) {
.destroy = nv04_tv_destroy,
};
*hfuncs = (struct drm_encoder_helper_funcs) {
.dpms = nv04_tv_dpms,
.save = sfuncs->save,
.restore = sfuncs->restore,
.mode_fixup = sfuncs->mode_fixup,
.prepare = nv04_tv_prepare,
.commit = nv04_tv_commit,
.mode_set = nv04_tv_mode_set,
.detect = sfuncs->detect,
};
/* Set the slave encoder configuration */
sfuncs->set_config(encoder, nv04_tv_encoder_info[type].params);
return 0;
fail:
drm_encoder_cleanup(encoder);
kfree(nv_encoder);
return ret;
}
