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Diffstat (limited to 'linux-core/nouveau_backlight.c')
-rw-r--r--linux-core/nouveau_backlight.c268
1 files changed, 0 insertions, 268 deletions
diff --git a/linux-core/nouveau_backlight.c b/linux-core/nouveau_backlight.c
deleted file mode 100644
index 3a68d924..00000000
--- a/linux-core/nouveau_backlight.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- * 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>
- *
- * PowerPC specific stuff:
- * Danny Tholen <moondrake@gmail.com>
- * (mainly based on info from nvidiafb)
- *
- * Register locations derived from NVClock by Roderick Colenbrander
- */
-
-#include <linux/backlight.h>
-
-#include "drmP.h"
-#include "nouveau_drv.h"
-#include "nouveau_drm.h"
-#include "nouveau_reg.h"
-#ifdef CONFIG_PMAC_BACKLIGHT
-#include <asm/backlight.h>
-#endif
-
-#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23))
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-static int ppc_get_intensity(struct backlight_device *bd)
-{
- struct drm_device *dev = bl_get_data(bd);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- int raw_val = (NV_READ(NV_PBUS_DEBUG_DUALHEAD_CTL) & 0x7fff0000) >> 16;
- int min_brightness = bd->props.max_brightness / 3;
- int intensity = raw_val - min_brightness;
-
- return (intensity < 0 ? 0 : intensity);
-}
-
-static int ppc_set_intensity(struct backlight_device *bd)
-{
- struct drm_device *dev = bl_get_data(bd);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- int val = bd->props.brightness;
- int min_brightness = bd->props.max_brightness / 3;
- int dh_ctl = NV_READ(NV_PBUS_DEBUG_DUALHEAD_CTL) & 0x0000ffff;
- int gpio_ext = NV_READ(NV_PCRTC_GPIO_EXT) & ~0x3;
-
- if (val > 0) {
- dh_ctl |= (1 << 31); /* backlight bit on */
- dh_ctl |= (val + min_brightness) << 16;
- gpio_ext |= 0x1;
- }
-
- NV_WRITE(NV_PBUS_DEBUG_DUALHEAD_CTL, dh_ctl);
- NV_WRITE(NV_PCRTC_GPIO_EXT, gpio_ext);
-
- return 0;
-}
-
-static struct backlight_ops ppc_bl_ops = {
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29))
- .options = BL_CORE_SUSPENDRESUME,
-#endif
- .get_brightness = ppc_get_intensity,
- .update_status = ppc_set_intensity,
-};
-#endif /* CONFIG_PMAC_BACKLIGHT */
-
-static int nv40_get_intensity(struct backlight_device *bd)
-{
- struct drm_device *dev = bl_get_data(bd);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- int val = (NV_READ(NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK) >> 16;
-
- return val;
-}
-
-static int nv40_set_intensity(struct backlight_device *bd)
-{
- struct drm_device *dev = bl_get_data(bd);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- int val = bd->props.brightness;
- int reg = NV_READ(NV40_PMC_BACKLIGHT);
-
- NV_WRITE(NV40_PMC_BACKLIGHT,
- (val << 16) | (reg & ~NV40_PMC_BACKLIGHT_MASK));
-
- return 0;
-}
-
-static struct backlight_ops nv40_bl_ops = {
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29))
- .options = BL_CORE_SUSPENDRESUME,
-#endif
- .get_brightness = nv40_get_intensity,
- .update_status = nv40_set_intensity,
-};
-
-static int nv50_get_intensity(struct backlight_device *bd)
-{
- struct drm_device *dev = bl_get_data(bd);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
-
- return NV_READ(NV50_PDISPLAY_BACKLIGHT);
-}
-
-static int nv50_set_intensity(struct backlight_device *bd)
-{
- struct drm_device *dev = bl_get_data(bd);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- int val = bd->props.brightness;
-
- NV_WRITE(NV50_PDISPLAY_BACKLIGHT, val | NV50_PDISPLAY_BACKLIGHT_ENABLE);
-
- return 0;
-}
-
-static struct backlight_ops nv50_bl_ops = {
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29))
- .options = BL_CORE_SUSPENDRESUME,
-#endif
- .get_brightness = nv50_get_intensity,
- .update_status = nv50_set_intensity,
-};
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-static int nouveau_ppc_backlight_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct backlight_device *bd;
- int max_brightness;
-
- if (!machine_is(powermac) ||
- !pmac_has_backlight_type("mnca"))
- return -ENODEV;
-
- /* "nv_bl0", some old powerpc userland tools rely on this */
- bd = backlight_device_register("nv_bl0", &dev->pdev->dev, dev,
- &ppc_bl_ops);
- if (IS_ERR(bd))
- return PTR_ERR(bd);
-
- dev_priv->backlight = bd;
-
- /* the least significant 15 bits of NV_PBUS_DEBUG_DUALHEAD_CTL
- * set the maximum backlight level, OF sets it to 0x535 on my
- * powerbook. however, posting the card sets this to 0x7FFF.
- * Below 25% the blacklight turns off.
- *
- * NOTE: pbbuttonsd limits brightness values < 255, and thus
- * will not work well with this.
- */
-
- /* FIXME: do we want to fix this reg to 0x535 for consistency? */
- max_brightness = NV_READ(NV_PBUS_DEBUG_DUALHEAD_CTL) & 0x0000ffff;
- /* lose (bottom) 25% of range */
- bd->props.max_brightness = (max_brightness * 3) / 4;
- bd->props.brightness = ppc_get_intensity(bd);
- backlight_update_status(bd);
-
- return 0;
-}
-#endif
-
-static int nouveau_nv40_backlight_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct backlight_device *bd;
-
- if (!(NV_READ(NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK))
- return 0;
-
- bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
- &nv40_bl_ops);
- if (IS_ERR(bd))
- return PTR_ERR(bd);
-
- dev_priv->backlight = bd;
- bd->props.max_brightness = 31;
- bd->props.brightness = nv40_get_intensity(bd);
- backlight_update_status(bd);
-
- return 0;
-}
-
-static int nouveau_nv50_backlight_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct backlight_device *bd;
-
- if (!NV_READ(NV50_PDISPLAY_BACKLIGHT))
- return 0;
-
- bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
- &nv50_bl_ops);
- if (IS_ERR(bd))
- return PTR_ERR(bd);
-
- dev_priv->backlight = bd;
- bd->props.max_brightness = 1025;
- bd->props.brightness = nv50_get_intensity(bd);
- backlight_update_status(bd);
- return 0;
-}
-
-int nouveau_backlight_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
-
- switch (dev_priv->card_type) {
-#ifdef CONFIG_PMAC_BACKLIGHT
- case NV_17:
- case NV_30:
- return nouveau_ppc_backlight_init(dev);
-#endif
- case NV_40:
- case NV_44:
- return nouveau_nv40_backlight_init(dev);
- break;
- case NV_50:
- return nouveau_nv50_backlight_init(dev);
- break;
- }
- return 0;
-}
-
-void nouveau_backlight_exit(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
-
- if (dev_priv->backlight)
- backlight_device_unregister(dev_priv->backlight);
-}
-
-#else /* CONFIG_BACKLIGHT_CLASS_DEVICE not set */
-int nouveau_backlight_init(struct drm_device *dev)
-{
- (void)dev;
- return 0;
-}
-
-void nouveau_backlight_exit(struct drm_device *dev)
-{
- (void)dev;
-}
-#endif /* CONFIG_BACKLIGHT_CLASS_DEVICE not set */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-24 11:40:14 +0000