diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/Makefile | 2 | ||||
| -rw-r--r-- | linux-core/i915_pm.c | 167 |
2 files changed, 168 insertions, 1 deletions
diff --git a/linux-core/Makefile b/linux-core/Makefile index 5db549ea..4cd11050 100644 --- a/linux-core/Makefile +++ b/linux-core/Makefile @@ -84,7 +84,7 @@ MGASHARED = mga_dma.c mga_drm.h mga_drv.h mga_irq.c mga_state.c \ I810HEADERS = i810_drv.h i810_drm.h $(DRMHEADERS) I830HEADERS = i830_drv.h i830_drm.h $(DRMHEADERS) I915HEADERS = i915_drv.h i915_drm.h $(DRMHEADERS) -I915SHARED = i915_drv.h i915_drm.h i915_irq.c i915_mem.c i915_dma.c i915_pm.c +I915SHARED = i915_drv.h i915_drm.h i915_irq.c i915_mem.c i915_dma.c SISHEADERS= sis_drv.h sis_drm.h $(DRMHEADERS) SISSHARED= sis_drv.h sis_drm.h sis_ds.c sis_ds.h sis_mm.c SAVAGEHEADERS= savage_drv.h savage_drm.h $(DRMHEADERS) diff --git a/linux-core/i915_pm.c b/linux-core/i915_pm.c new file mode 100644 index 00000000..e4bda0ce --- /dev/null +++ b/linux-core/i915_pm.c @@ -0,0 +1,167 @@ +/* i915_pm.c -- Power management support for the i915 -*- linux-c -*- + */ +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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. + * + **************************************************************************/ + +#define __NO_VERSION__ +#include "drmP.h" +#include "drm.h" +#include "i915_drm.h" +#include "i915_drv.h" + + +/** + * Set DPMS mode. + */ +static int i915_set_dpms(drm_device_t *dev, int mode) +{ + drm_i915_private_t *dev_priv = + (drm_i915_private_t *)dev->dev_private; + unsigned sr01, adpa, ppcr, dvob, dvoc, lvds; + + DRM_DEBUG("%s mode=%d\n", __FUNCTION__, mode); + + if (!dev_priv) return 0; + + I915_WRITE( SRX_INDEX, SR01 ); + sr01 = I915_READ( SRX_DATA ); + + adpa = I915_READ( ADPA ); + ppcr = I915_READ( PPCR ); + dvoc = I915_READ( DVOC ); + dvob = I915_READ( DVOB ); + lvds = I915_READ( LVDS ); + + switch(mode) { + case 0: + /* On */ + sr01 = dev_priv->sr01; + adpa = dev_priv->adpa; +#if 0 + I915_WRITE( LVDS, lvds | LVDS_ON ); /* Power on LVDS */ +#endif + I915_WRITE( PPCR, dev_priv->ppcr ); /* Power up panel */ + I915_WRITE( DVOC, dev_priv->dvoc ); + I915_WRITE( DVOB, dev_priv->dvob ); + break; + + case 1: + /* Standby */ + sr01 |= SR01_SCREEN_OFF; + adpa = (adpa & ADPA_DPMS_MASK) | ADPA_DPMS_STANDBY; + I915_WRITE( PPCR, ppcr & ~PPCR_ON ); /* Power off panel*/ +#if 0 + I915_WRITE( LVDS, lvds & ~LVDS_ON ); /* Power off LVDS */ +#endif + I915_WRITE( DVOC, dvoc & ~DVOC_ON ); + I915_WRITE( DVOB, dvob & ~DVOB_ON ); + break; + + case 2: + /* Suspend */ + sr01 |= SR01_SCREEN_OFF; + adpa = (adpa & ADPA_DPMS_MASK) | ADPA_DPMS_SUSPEND; + I915_WRITE( PPCR, ppcr & ~PPCR_ON ); /* Power off panel*/ +#if 0 + I915_WRITE( LVDS, lvds & ~LVDS_ON ); /* Power off LVDS */ +#endif + I915_WRITE( DVOC, dvoc & ~DVOC_ON ); + I915_WRITE( DVOB, dvob & ~DVOB_ON ); + break; + + case 3: + /* Off */ + sr01 |= SR01_SCREEN_OFF; + adpa = (adpa & ADPA_DPMS_MASK) | ADPA_DPMS_OFF; + I915_WRITE( PPCR, ppcr & ~PPCR_ON ); /* Power off panel*/ +#if 0 + I915_WRITE( LVDS, lvds & ~LVDS_ON ); /* Power off LVDS */ +#endif + I915_WRITE( DVOC, dvoc & ~DVOC_ON ); + I915_WRITE( DVOB, dvob & ~DVOB_ON ); + break; + } + + I915_WRITE( SRX_DATA, sr01 ); + + I915_WRITE( ADPA, adpa ); + + return 0; +} + +int i915_suspend( struct pci_dev *pdev, unsigned state ) +{ + drm_device_t *dev = (drm_device_t *)pci_get_drvdata(pdev); + drm_i915_private_t *dev_priv = + (drm_i915_private_t *)dev->dev_private; + + DRM_DEBUG("%s state=%d\n", __FUNCTION__, state); + + if (!dev_priv) return 0; + + /* Save state for power up later */ + if (state != 0) { + I915_WRITE( SRX_INDEX, SR01 ); + dev_priv->sr01 = I915_READ( SRX_DATA ); + dev_priv->dvoc = I915_READ( DVOC ); + dev_priv->dvob = I915_READ( DVOB ); + dev_priv->lvds = I915_READ( LVDS ); + dev_priv->adpa = I915_READ( ADPA ); + dev_priv->ppcr = I915_READ( PPCR ); + } + + switch(state) { + case 0: + /* D0: set DPMS mode on */ + i915_set_dpms(dev, 0); + break; + case 1: + /* D1: set DPMS mode standby */ + i915_set_dpms(dev, 1); + break; + case 2: + /* D2: set DPMS mode suspend */ + i915_set_dpms(dev, 2); + break; + case 3: + /* D3: set DPMS mode off */ + i915_set_dpms(dev, 3); + break; + } + + return 0; +} + +int i915_resume( struct pci_dev *pdev ) +{ + drm_device_t *dev = (drm_device_t *)pci_get_drvdata(pdev); + + /* D0: set DPMS mode on */ + i915_set_dpms(dev, 0); + + return 0; +} |