![Ben Skeggs](/assets/img/avatar_default.png)
A variety of tweaks to the NVIF library interfaces, mostly ripping out things that turned out to be not so useful. - Removed refcounting from nvif_object, callers are expected to not be stupid instead. - nvif_client is directly reachable from anything derived from nvif_object, removing the need for heuristics to locate it - _new() versions of interfaces, that allocate memory for the object they construct, have been removed. The vast majority of callers used the embedded _init() interfaces. - No longer storing constructor arguments (and the data returned from nvkm) inside nvif_object, it's more or less unused and just wastes memory. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
255 lines
6.9 KiB
C
255 lines
6.9 KiB
C
/*
|
|
* Copyright (C) 2009 Red Hat <mjg@redhat.com>
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Authors:
|
|
* Matthew Garrett <mjg@redhat.com>
|
|
*
|
|
* Register locations derived from NVClock by Roderick Colenbrander
|
|
*/
|
|
|
|
#include <linux/backlight.h>
|
|
|
|
#include "nouveau_drm.h"
|
|
#include "nouveau_reg.h"
|
|
#include "nouveau_encoder.h"
|
|
|
|
static int
|
|
nv40_get_intensity(struct backlight_device *bd)
|
|
{
|
|
struct nouveau_drm *drm = bl_get_data(bd);
|
|
struct nvif_object *device = &drm->device.object;
|
|
int val = (nvif_rd32(device, NV40_PMC_BACKLIGHT) &
|
|
NV40_PMC_BACKLIGHT_MASK) >> 16;
|
|
|
|
return val;
|
|
}
|
|
|
|
static int
|
|
nv40_set_intensity(struct backlight_device *bd)
|
|
{
|
|
struct nouveau_drm *drm = bl_get_data(bd);
|
|
struct nvif_object *device = &drm->device.object;
|
|
int val = bd->props.brightness;
|
|
int reg = nvif_rd32(device, NV40_PMC_BACKLIGHT);
|
|
|
|
nvif_wr32(device, NV40_PMC_BACKLIGHT,
|
|
(val << 16) | (reg & ~NV40_PMC_BACKLIGHT_MASK));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct backlight_ops nv40_bl_ops = {
|
|
.options = BL_CORE_SUSPENDRESUME,
|
|
.get_brightness = nv40_get_intensity,
|
|
.update_status = nv40_set_intensity,
|
|
};
|
|
|
|
static int
|
|
nv40_backlight_init(struct drm_connector *connector)
|
|
{
|
|
struct nouveau_drm *drm = nouveau_drm(connector->dev);
|
|
struct nvif_object *device = &drm->device.object;
|
|
struct backlight_properties props;
|
|
struct backlight_device *bd;
|
|
|
|
if (!(nvif_rd32(device, NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK))
|
|
return 0;
|
|
|
|
memset(&props, 0, sizeof(struct backlight_properties));
|
|
props.type = BACKLIGHT_RAW;
|
|
props.max_brightness = 31;
|
|
bd = backlight_device_register("nv_backlight", connector->kdev, drm,
|
|
&nv40_bl_ops, &props);
|
|
if (IS_ERR(bd))
|
|
return PTR_ERR(bd);
|
|
drm->backlight = bd;
|
|
bd->props.brightness = nv40_get_intensity(bd);
|
|
backlight_update_status(bd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
nv50_get_intensity(struct backlight_device *bd)
|
|
{
|
|
struct nouveau_encoder *nv_encoder = bl_get_data(bd);
|
|
struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
|
|
struct nvif_object *device = &drm->device.object;
|
|
int or = nv_encoder->or;
|
|
u32 div = 1025;
|
|
u32 val;
|
|
|
|
val = nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(or));
|
|
val &= NV50_PDISP_SOR_PWM_CTL_VAL;
|
|
return ((val * 100) + (div / 2)) / div;
|
|
}
|
|
|
|
static int
|
|
nv50_set_intensity(struct backlight_device *bd)
|
|
{
|
|
struct nouveau_encoder *nv_encoder = bl_get_data(bd);
|
|
struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
|
|
struct nvif_object *device = &drm->device.object;
|
|
int or = nv_encoder->or;
|
|
u32 div = 1025;
|
|
u32 val = (bd->props.brightness * div) / 100;
|
|
|
|
nvif_wr32(device, NV50_PDISP_SOR_PWM_CTL(or),
|
|
NV50_PDISP_SOR_PWM_CTL_NEW | val);
|
|
return 0;
|
|
}
|
|
|
|
static const struct backlight_ops nv50_bl_ops = {
|
|
.options = BL_CORE_SUSPENDRESUME,
|
|
.get_brightness = nv50_get_intensity,
|
|
.update_status = nv50_set_intensity,
|
|
};
|
|
|
|
static int
|
|
nva3_get_intensity(struct backlight_device *bd)
|
|
{
|
|
struct nouveau_encoder *nv_encoder = bl_get_data(bd);
|
|
struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
|
|
struct nvif_object *device = &drm->device.object;
|
|
int or = nv_encoder->or;
|
|
u32 div, val;
|
|
|
|
div = nvif_rd32(device, NV50_PDISP_SOR_PWM_DIV(or));
|
|
val = nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(or));
|
|
val &= NVA3_PDISP_SOR_PWM_CTL_VAL;
|
|
if (div && div >= val)
|
|
return ((val * 100) + (div / 2)) / div;
|
|
|
|
return 100;
|
|
}
|
|
|
|
static int
|
|
nva3_set_intensity(struct backlight_device *bd)
|
|
{
|
|
struct nouveau_encoder *nv_encoder = bl_get_data(bd);
|
|
struct nouveau_drm *drm = nouveau_drm(nv_encoder->base.base.dev);
|
|
struct nvif_object *device = &drm->device.object;
|
|
int or = nv_encoder->or;
|
|
u32 div, val;
|
|
|
|
div = nvif_rd32(device, NV50_PDISP_SOR_PWM_DIV(or));
|
|
val = (bd->props.brightness * div) / 100;
|
|
if (div) {
|
|
nvif_wr32(device, NV50_PDISP_SOR_PWM_CTL(or), val |
|
|
NV50_PDISP_SOR_PWM_CTL_NEW |
|
|
NVA3_PDISP_SOR_PWM_CTL_UNK);
|
|
return 0;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static const struct backlight_ops nva3_bl_ops = {
|
|
.options = BL_CORE_SUSPENDRESUME,
|
|
.get_brightness = nva3_get_intensity,
|
|
.update_status = nva3_set_intensity,
|
|
};
|
|
|
|
static int
|
|
nv50_backlight_init(struct drm_connector *connector)
|
|
{
|
|
struct nouveau_drm *drm = nouveau_drm(connector->dev);
|
|
struct nvif_object *device = &drm->device.object;
|
|
struct nouveau_encoder *nv_encoder;
|
|
struct backlight_properties props;
|
|
struct backlight_device *bd;
|
|
const struct backlight_ops *ops;
|
|
|
|
nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
|
|
if (!nv_encoder) {
|
|
nv_encoder = find_encoder(connector, DCB_OUTPUT_DP);
|
|
if (!nv_encoder)
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (!nvif_rd32(device, NV50_PDISP_SOR_PWM_CTL(nv_encoder->or)))
|
|
return 0;
|
|
|
|
if (drm->device.info.chipset <= 0xa0 ||
|
|
drm->device.info.chipset == 0xaa ||
|
|
drm->device.info.chipset == 0xac)
|
|
ops = &nv50_bl_ops;
|
|
else
|
|
ops = &nva3_bl_ops;
|
|
|
|
memset(&props, 0, sizeof(struct backlight_properties));
|
|
props.type = BACKLIGHT_RAW;
|
|
props.max_brightness = 100;
|
|
bd = backlight_device_register("nv_backlight", connector->kdev,
|
|
nv_encoder, ops, &props);
|
|
if (IS_ERR(bd))
|
|
return PTR_ERR(bd);
|
|
|
|
drm->backlight = bd;
|
|
bd->props.brightness = bd->ops->get_brightness(bd);
|
|
backlight_update_status(bd);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
nouveau_backlight_init(struct drm_device *dev)
|
|
{
|
|
struct nouveau_drm *drm = nouveau_drm(dev);
|
|
struct nvif_device *device = &drm->device;
|
|
struct drm_connector *connector;
|
|
|
|
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
|
|
if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS &&
|
|
connector->connector_type != DRM_MODE_CONNECTOR_eDP)
|
|
continue;
|
|
|
|
switch (device->info.family) {
|
|
case NV_DEVICE_INFO_V0_CURIE:
|
|
return nv40_backlight_init(connector);
|
|
case NV_DEVICE_INFO_V0_TESLA:
|
|
case NV_DEVICE_INFO_V0_FERMI:
|
|
case NV_DEVICE_INFO_V0_KEPLER:
|
|
return nv50_backlight_init(connector);
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
nouveau_backlight_exit(struct drm_device *dev)
|
|
{
|
|
struct nouveau_drm *drm = nouveau_drm(dev);
|
|
|
|
if (drm->backlight) {
|
|
backlight_device_unregister(drm->backlight);
|
|
drm->backlight = NULL;
|
|
}
|
|
}
|