/*
* Copyright (C) 2008 Maarten Maathuis.
* 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 "drm_crtc_helper.h"
#define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
#include "nouveau_reg.h"
#include "nouveau_drv.h"
#include "nouveau_dma.h"
#include "nouveau_encoder.h"
#include "nouveau_connector.h"
#include "nouveau_crtc.h"
#include "nv50_display.h"
static void
nv50_sor_disconnect(struct nouveau_encoder *nv_encoder)
{
struct drm_device *dev = to_drm_encoder(nv_encoder)->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *evo = dev_priv->evo;
int ret;
NV_DEBUG_KMS(dev, "Disconnecting SOR %d\n", nv_encoder->or);
ret = RING_SPACE(evo, 2);
if (ret) {
NV_ERROR(dev, "no space while disconnecting SOR\n");
return;
}
BEGIN_RING(evo, 0, NV50_EVO_SOR(nv_encoder->or, MODE_CTRL), 1);
OUT_RING(evo, 0);
}
static void
nv50_sor_dp_link_train(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct bit_displayport_encoder_table *dpe;
int dpe_headerlen;
dpe = nouveau_bios_dp_table(dev, nv_encoder->dcb, &dpe_headerlen);
if (!dpe) {
NV_ERROR(dev, "SOR-%d: no DP encoder table!\n", nv_encoder->or);
return;
}
if (dpe->script0) {
NV_DEBUG_KMS(dev, "SOR-%d: running DP script 0\n", nv_encoder->or);
nouveau_bios_run_init_table(dev, le16_to_cpu(dpe->script0),
nv_encoder->dcb);
}
if (!nouveau_dp_link_train(encoder))
NV_ERROR(dev, "SOR-%d: link training failed\n", nv_encoder->or);
if (dpe->script1) {
NV_DEBUG_KMS(dev, "SOR-%d: running DP script 1\n", nv_encoder->or);
nouveau_bios_run_init_table(dev, le16_to_cpu(dpe->script1),
nv_encoder->dcb);
}
}
static void
nv50_sor_dpms(struct drm_encoder *encoder, int mode)
{
struct drm_device *dev = encoder->dev;
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct drm_encoder *enc;
uint32_t val;
int or = nv_encoder->or;
NV_DEBUG_KMS(dev, "or %d mode %d\n", or, mode);
nv_encoder->last_dpms = mode;
list_for_each_entry(enc, &dev->mode_config.encoder_list, head) {
struct nouveau_encoder *nvenc = nouveau_encoder(enc);
if (nvenc == nv_encoder ||
nvenc->disconnect != nv50_sor_disconnect ||
nvenc->dcb->or != nv_encoder->dcb->or)
continue;
if (nvenc->last_dpms == DRM_MODE_DPMS_ON)
return;
}
/* wait for it to be done */
if (!nv_wait(NV50_PDISPLAY_SOR_DPMS_CTRL(or),
NV50_PDISPLAY_SOR_DPMS_CTRL_PENDING, 0)) {
NV_ERROR(dev, "timeout: SOR_DPMS_CTRL_PENDING(%d) == 0\n", or);
NV_ERROR(dev, "SOR_DPMS_CTRL(%d) = 0x%08x\n", or,
nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_CTRL(or)));
}
val = nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_CTRL(or));
if (mode == DRM_MODE_DPMS_ON)
val |= NV50_PDISPLAY_SOR_DPMS_CTRL_ON;
else
val &= ~NV50_PDISPLAY_SOR_DPMS_CTRL_ON;
nv_wr32(dev, NV50_PDISPLAY_SOR_DPMS_CTRL(or), val |
NV50_PDISPLAY_SOR_DPMS_CTRL_PENDING);
if (!nv_wait(NV50_PDISPLAY_SOR_DPMS_STATE(or),
NV50_PDISPLAY_SOR_DPMS_STATE_WAIT, 0)) {
NV_ERROR(dev, "timeout: SOR_DPMS_STATE_WAIT(%d) == 0\n", or);
NV_ERROR(dev, "SOR_DPMS_STATE(%d) = 0x%08x\n", or,
nv_rd32(dev, NV50_PDISPLAY_SOR_DPMS_STATE(or)));
}
if (nv_encoder->dcb->type == OUTPUT_DP && mode == DRM_MODE_DPMS_ON)
nv50_sor_dp_link_train(encoder);
}
static void
nv50_sor_save(struct drm_encoder *encoder)
{
NV_ERROR(encoder->dev, "!!\n");
}
static void
nv50_sor_restore(struct drm_encoder *encoder)
{
NV_ERROR(encoder->dev, "!!\n");
}
static bool
nv50_sor_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct nouveau_connector *connector;
NV_DEBUG_KMS(encoder->dev, "or %d\n", nv_encoder->or);
connector = nouveau_encoder_connector_get(nv_encoder);
if (!connector) {
NV_ERROR(encoder->dev, "Encoder has no connector\n");
return false;
}
if (connector->scaling_mode != DRM_MODE_SCALE_NONE &&
connector->native_mode) {
int id = adjusted_mode->base.id;
*adjusted_mode = *connector->native_mode;
adjusted_mode->base.id = id;
}
return true;
}
static void
nv50_sor_prepare(struct drm_encoder *encoder)
{
}
static void
nv50_sor_commit(struct drm_encoder *encoder)
{
}
static void
nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_nouveau_private *dev_priv = encoder->dev->dev_private;
struct nouveau_channel *evo = dev_priv->evo;
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
struct drm_device *dev = encoder->dev;
struct nouveau_crtc *crtc = nouveau_crtc(encoder->crtc);
uint32_t mode_ctl = 0;
int ret;
NV_DEBUG_KMS(dev, "or %d\n", nv_encoder->or);
nv50_sor_dpms(encoder, DRM_MODE_DPMS_ON);
switch (nv_encoder->dcb->type) {
case OUTPUT_TMDS:
if (nv_encoder->dcb->sorconf.link & 1) {
if (adjusted_mode->clock < 165000)
mode_ctl = 0x0100;
else
mode_ctl = 0x0500;
} else
mode_ctl = 0x0200;
break;
case OUTPUT_DP:
mode_ctl |= 0x00050000;
if (nv_encoder->dcb->sorconf.link & 1)
mode_ctl |= 0x00000800;
else
mode_ctl |= 0x00000900;
break;
default:
break;
}
if (crtc->index == 1)
mode_ctl |= NV50_EVO_SOR_MODE_CTRL_CRTC1;
else
mode_ctl |= NV50_EVO_SOR_MODE_CTRL_CRTC0;
if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
mode_ctl |= NV50_EVO_SOR_MODE_CTRL_NHSYNC;
if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
mode_ctl |= NV50_EVO_SOR_MODE_CTRL_NVSYNC;
ret = RING_SPACE(evo, 2);
if (ret) {
NV_ERROR(dev, "no space while connecting SOR\n");
return;
}
BEGIN_RING(evo, 0, NV50_EVO_SOR(nv_encoder->or, MODE_CTRL), 1);
OUT_RING(evo, mode_ctl);
}
static const struct drm_encoder_helper_funcs nv50_sor_helper_funcs = {
.dpms = nv50_sor_dpms,
.save = nv50_sor_save,
.restore = nv50_sor_restore,
.mode_fixup = nv50_sor_mode_fixup,
.prepare = nv50_sor_prepare,
.commit = nv50_sor_commit,
.mode_set = nv50_sor_mode_set,
.detect = NULL
};
static void
nv50_sor_destroy(struct drm_encoder *encoder)
{
struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
if (!encoder)
return;
NV_DEBUG_KMS(encoder->dev, "\n");
drm_encoder_cleanup(encoder);
kfree(nv_encoder);
}
static const struct drm_encoder_funcs nv50_sor_encoder_funcs = {
.destroy = nv50_sor_destroy,
};
int
nv50_sor_create(struct drm_device *dev, struct dcb_entry *entry)
{
struct nouveau_encoder *nv_encoder = NULL;
struct drm_encoder *encoder;
bool dum;
int type;
NV_DEBUG_KMS(dev, "\n");
switch (entry->type) {
case OUTPUT_TMDS:
NV_INFO(dev, "Detected a TMDS output\n");
type = DRM_MODE_ENCODER_TMDS;
break;
case OUTPUT_LVDS:
NV_INFO(dev, "Detected a LVDS output\n");
type = DRM_MODE_ENCODER_LVDS;
if (nouveau_bios_parse_lvds_table(dev, 0, &dum, &dum)) {
NV_ERROR(dev, "Failed parsing LVDS table\n");
return -EINVAL;
}
break;
case OUTPUT_DP:
NV_INFO(dev, "Detected a DP output\n");
type = DRM_MODE_ENCODER_TMDS;
break;
default:
return -EINVAL;
}
nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
if (!nv_encoder)
return -ENOMEM;
encoder = to_drm_encoder(nv_encoder);
nv_encoder->dcb = entry;
nv_encoder->or = ffs(entry->or) - 1;
nv_encoder->disconnect = nv50_sor_disconnect;
drm_encoder_init(dev, encoder, &nv50_sor_encoder_funcs, type);
drm_encoder_helper_add(encoder, &nv50_sor_helper_funcs);
encoder->possible_crtcs = entry->heads;
encoder->possible_clones = 0;
return 0;
}
