drm/linux-core/radeon_connectors.c

345 lines
11 KiB
C

/*
* Copyright 2007-8 Advanced Micro Devices, Inc.
* Copyright 2008 Red Hat Inc.
*
* 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 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 HOLDER(S) OR AUTHOR(S) 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.
*
* Authors: Dave Airlie
* Alex Deucher
*/
#include "drmP.h"
#include "drm_edid.h"
#include "drm_crtc_helper.h"
#include "radeon_drm.h"
#include "radeon_drv.h"
static int radeon_lvds_get_modes(struct drm_connector *connector)
{
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct drm_encoder *lvds_encoder;
int ret = 0;
struct edid *edid;
radeon_i2c_do_lock(radeon_connector, 1);
edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
radeon_i2c_do_lock(radeon_connector, 0);
if (edid) {
drm_mode_connector_update_edid_property(&radeon_connector->base, edid);
ret = drm_add_edid_modes(&radeon_connector->base, edid);
kfree(edid);
return 0;
}
#if 0
lvds_encoder = radeon_best_single_encoder(connector);
if (!lvds_encoder)
return ret;
radeon_encoder_update_panel_size(lvds_encoder, connector);
#endif
return ret;
}
static int radeon_lvds_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
return MODE_OK;
}
static enum drm_connector_status radeon_lvds_detect(struct drm_connector *connector)
{
return connector_status_connected;
}
struct drm_encoder *radeon_best_single_encoder(struct drm_connector *connector)
{
int enc_id = connector->encoder_ids[0];
struct drm_mode_object *obj;
struct drm_encoder *encoder;
/* pick the encoder ids */
if (enc_id) {
obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
if (!obj)
return NULL;
encoder = obj_to_encoder(obj);
return encoder;
}
return NULL;
}
static void radeon_connector_destroy(struct drm_connector *connector)
{
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
if (radeon_connector->ddc_bus)
radeon_i2c_destroy(radeon_connector->ddc_bus);
drm_sysfs_connector_remove(connector);
drm_connector_cleanup(connector);
kfree(connector);
}
struct drm_connector_helper_funcs radeon_lvds_connector_helper_funcs = {
.get_modes = radeon_lvds_get_modes,
.mode_valid = radeon_lvds_mode_valid,
.best_encoder = radeon_best_single_encoder,
};
struct drm_connector_funcs radeon_lvds_connector_funcs = {
.detect = radeon_lvds_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = radeon_connector_destroy,
};
static int radeon_vga_get_modes(struct drm_connector *connector)
{
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
int ret;
ret = radeon_ddc_get_modes(radeon_connector);
return ret;
}
static int radeon_vga_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
return MODE_OK;
}
static enum drm_connector_status radeon_vga_detect(struct drm_connector *connector)
{
struct edid *edid;
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct drm_encoder *encoder;
struct drm_encoder_helper_funcs *encoder_funcs;
radeon_i2c_do_lock(radeon_connector, 1);
edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
radeon_i2c_do_lock(radeon_connector, 0);
if (edid) {
kfree(edid);
return connector_status_connected;
}
/* if EDID fails to a load detect */
encoder = radeon_best_single_encoder(connector);
if (!encoder)
return connector_status_disconnected;
encoder_funcs = encoder->helper_private;
return encoder_funcs->detect(encoder, connector);
}
struct drm_connector_helper_funcs radeon_vga_connector_helper_funcs = {
.get_modes = radeon_vga_get_modes,
.mode_valid = radeon_vga_mode_valid,
.best_encoder = radeon_best_single_encoder,
};
struct drm_connector_funcs radeon_vga_connector_funcs = {
.detect = radeon_vga_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = radeon_connector_destroy,
};
static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connector)
{
struct edid *edid;
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct drm_encoder *encoder;
struct drm_encoder_helper_funcs *encoder_funcs;
struct drm_mode_object *obj;
int i;
enum drm_connector_status ret;
radeon_i2c_do_lock(radeon_connector, 1);
edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
radeon_i2c_do_lock(radeon_connector, 0);
if (edid) {
/* if the monitor is digital - set the bits */
if (edid->digital)
radeon_connector->use_digital = 1;
else
radeon_connector->use_digital = 0;
kfree(edid);
return connector_status_connected;
}
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
if (connector->encoder_ids[i] == 0)
break;
obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
if (!obj)
continue;
encoder = obj_to_encoder(obj);
encoder_funcs = encoder->helper_private;
if (encoder_funcs->detect) {
ret = encoder_funcs->detect(encoder, connector);
if (ret == connector_status_connected) {
radeon_connector->use_digital = 0;
return ret;
}
}
}
return connector_status_disconnected;
}
/* okay need to be smart in here about which encoder to pick */
struct drm_encoder *radeon_dvi_encoder(struct drm_connector *connector)
{
int enc_id = connector->encoder_ids[0];
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct drm_mode_object *obj;
struct drm_encoder *encoder;
int i;
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
if (connector->encoder_ids[i] == 0)
break;
obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER);
if (!obj)
continue;
encoder = obj_to_encoder(obj);
if (radeon_connector->use_digital) {
if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)
return encoder;
} else {
if (encoder->encoder_type == DRM_MODE_ENCODER_DAC ||
encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
return encoder;
}
}
/* see if we have a default encoder TODO */
/* then check use digitial */
/* pick the first one */
if (enc_id) {
obj = drm_mode_object_find(connector->dev, enc_id, DRM_MODE_OBJECT_ENCODER);
if (!obj)
return NULL;
encoder = obj_to_encoder(obj);
return encoder;
}
return NULL;
}
struct drm_connector_helper_funcs radeon_dvi_connector_helper_funcs = {
.get_modes = radeon_vga_get_modes,
.mode_valid = radeon_vga_mode_valid,
.best_encoder = radeon_dvi_encoder,
};
struct drm_connector_funcs radeon_dvi_connector_funcs = {
.detect = radeon_dvi_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = radeon_connector_destroy,
};
static struct connector_funcs {
int conn_id;
struct drm_connector_funcs *connector_funcs;
struct drm_connector_helper_funcs *helper_funcs;
int conn_type;
char *i2c_id;
} connector_fns[] = {
{ CONNECTOR_NONE, NULL, NULL, DRM_MODE_CONNECTOR_Unknown },
{ CONNECTOR_VGA, &radeon_vga_connector_funcs, &radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA , "VGA"},
{ CONNECTOR_LVDS, &radeon_lvds_connector_funcs, &radeon_lvds_connector_helper_funcs, DRM_MODE_CONNECTOR_LVDS, "LVDS" },
{ CONNECTOR_DVI_A, &radeon_vga_connector_funcs, &radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_DVIA, "DVI" },
{ CONNECTOR_DVI_I, &radeon_dvi_connector_funcs, &radeon_dvi_connector_helper_funcs, DRM_MODE_CONNECTOR_DVII, "DVI" },
#if 0
{ CONNECTOR_DVI_D, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_STV, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_CTV, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_DIGITAL, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_SCART, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_HDMI_TYPE_A, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_HDMI_TYPE_B, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_HDMI_TYPE_B, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_HDMI_TYPE_B, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_DIN, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
{ CONNECTOR_DISPLAY_PORT, radeon_vga_connector_funcs, radeon_vga_connector_helper_funcs, DRM_MODE_CONNECTOR_VGA },
#endif
};
struct drm_connector *radeon_connector_add(struct drm_device *dev, int bios_index)
{
struct radeon_connector *radeon_connector;
struct drm_radeon_private *dev_priv = dev->dev_private;
struct radeon_mode_info *mode_info = &dev_priv->mode_info;
struct drm_connector *connector;
int table_idx;
for (table_idx = 0; table_idx < ARRAY_SIZE(connector_fns); table_idx++) {
if (connector_fns[table_idx].conn_id == mode_info->bios_connector[bios_index].connector_type)
break;
}
if (table_idx == ARRAY_SIZE(connector_fns))
return NULL;
radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL);
if (!radeon_connector) {
return NULL;
}
connector = &radeon_connector->base;
drm_connector_init(dev, &radeon_connector->base, connector_fns[table_idx].connector_funcs,
connector_fns[table_idx].conn_type);
drm_connector_helper_add(&radeon_connector->base, connector_fns[table_idx].helper_funcs);
if (mode_info->bios_connector[bios_index].ddc_i2c.valid) {
radeon_connector->ddc_bus = radeon_i2c_create(dev, &mode_info->bios_connector[bios_index].ddc_i2c,
connector_fns[table_idx].i2c_id);
if (!radeon_connector->ddc_bus)
goto failed;
}
drm_sysfs_connector_add(connector);
return connector;
failed:
if (radeon_connector->ddc_bus)
radeon_i2c_destroy(radeon_connector->ddc_bus);
drm_connector_cleanup(connector);
kfree(connector);
return NULL;
}