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path: root/drivers/gpu/drm/i915/i915_opregion.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_opregion.c')
-rw-r--r--drivers/gpu/drm/i915/i915_opregion.c92
1 files changed, 81 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/i915_opregion.c b/drivers/gpu/drm/i915/i915_opregion.c
index 2d5193556d3f..7cc8410239cb 100644
--- a/drivers/gpu/drm/i915/i915_opregion.c
+++ b/drivers/gpu/drm/i915/i915_opregion.c
@@ -118,6 +118,10 @@ struct opregion_asle {
#define ASLE_BACKLIGHT_FAIL (2<<12)
#define ASLE_PFIT_FAIL (2<<14)
#define ASLE_PWM_FREQ_FAIL (2<<16)
+#define ASLE_ALS_ILLUM_FAILED (1<<10)
+#define ASLE_BACKLIGHT_FAILED (1<<12)
+#define ASLE_PFIT_FAILED (1<<14)
+#define ASLE_PWM_FREQ_FAILED (1<<16)
/* ASLE backlight brightness to set */
#define ASLE_BCLP_VALID (1<<31)
@@ -163,7 +167,7 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
if (IS_I965G(dev) && (blc_pwm_ctl2 & BLM_COMBINATION_MODE))
pci_write_config_dword(dev->pdev, PCI_LBPC, bclp);
else {
- if (IS_IGD(dev)) {
+ if (IS_PINEVIEW(dev)) {
blc_pwm_ctl &= ~(BACKLIGHT_DUTY_CYCLE_MASK - 1);
max_backlight = (blc_pwm_ctl & BACKLIGHT_MODULATION_FREQ_MASK) >>
BACKLIGHT_MODULATION_FREQ_SHIFT;
@@ -224,7 +228,7 @@ void opregion_asle_intr(struct drm_device *dev)
asle_req = asle->aslc & ASLE_REQ_MSK;
if (!asle_req) {
- DRM_DEBUG("non asle set request??\n");
+ DRM_DEBUG_DRIVER("non asle set request??\n");
return;
}
@@ -243,6 +247,73 @@ void opregion_asle_intr(struct drm_device *dev)
asle->aslc = asle_stat;
}
+static u32 asle_set_backlight_ironlake(struct drm_device *dev, u32 bclp)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct opregion_asle *asle = dev_priv->opregion.asle;
+ u32 cpu_pwm_ctl, pch_pwm_ctl2;
+ u32 max_backlight, level;
+
+ if (!(bclp & ASLE_BCLP_VALID))
+ return ASLE_BACKLIGHT_FAILED;
+
+ bclp &= ASLE_BCLP_MSK;
+ if (bclp < 0 || bclp > 255)
+ return ASLE_BACKLIGHT_FAILED;
+
+ cpu_pwm_ctl = I915_READ(BLC_PWM_CPU_CTL);
+ pch_pwm_ctl2 = I915_READ(BLC_PWM_PCH_CTL2);
+ /* get the max PWM frequency */
+ max_backlight = (pch_pwm_ctl2 >> 16) & BACKLIGHT_DUTY_CYCLE_MASK;
+ /* calculate the expected PMW frequency */
+ level = (bclp * max_backlight) / 255;
+ /* reserve the high 16 bits */
+ cpu_pwm_ctl &= ~(BACKLIGHT_DUTY_CYCLE_MASK);
+ /* write the updated PWM frequency */
+ I915_WRITE(BLC_PWM_CPU_CTL, cpu_pwm_ctl | level);
+
+ asle->cblv = (bclp*0x64)/0xff | ASLE_CBLV_VALID;
+
+ return 0;
+}
+
+void ironlake_opregion_gse_intr(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct opregion_asle *asle = dev_priv->opregion.asle;
+ u32 asle_stat = 0;
+ u32 asle_req;
+
+ if (!asle)
+ return;
+
+ asle_req = asle->aslc & ASLE_REQ_MSK;
+
+ if (!asle_req) {
+ DRM_DEBUG_DRIVER("non asle set request??\n");
+ return;
+ }
+
+ if (asle_req & ASLE_SET_ALS_ILLUM) {
+ DRM_DEBUG_DRIVER("Illum is not supported\n");
+ asle_stat |= ASLE_ALS_ILLUM_FAILED;
+ }
+
+ if (asle_req & ASLE_SET_BACKLIGHT)
+ asle_stat |= asle_set_backlight_ironlake(dev, asle->bclp);
+
+ if (asle_req & ASLE_SET_PFIT) {
+ DRM_DEBUG_DRIVER("Pfit is not supported\n");
+ asle_stat |= ASLE_PFIT_FAILED;
+ }
+
+ if (asle_req & ASLE_SET_PWM_FREQ) {
+ DRM_DEBUG_DRIVER("PWM freq is not supported\n");
+ asle_stat |= ASLE_PWM_FREQ_FAILED;
+ }
+
+ asle->aslc = asle_stat;
+}
#define ASLE_ALS_EN (1<<0)
#define ASLE_BLC_EN (1<<1)
#define ASLE_PFIT_EN (1<<2)
@@ -258,8 +329,7 @@ void opregion_enable_asle(struct drm_device *dev)
unsigned long irqflags;
spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
- i915_enable_pipestat(dev_priv, 1,
- I915_LEGACY_BLC_EVENT_ENABLE);
+ intel_enable_asle(dev);
spin_unlock_irqrestore(&dev_priv->user_irq_lock,
irqflags);
}
@@ -361,9 +431,9 @@ int intel_opregion_init(struct drm_device *dev, int resume)
int err = 0;
pci_read_config_dword(dev->pdev, PCI_ASLS, &asls);
- DRM_DEBUG("graphic opregion physical addr: 0x%x\n", asls);
+ DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls);
if (asls == 0) {
- DRM_DEBUG("ACPI OpRegion not supported!\n");
+ DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n");
return -ENOTSUPP;
}
@@ -373,30 +443,30 @@ int intel_opregion_init(struct drm_device *dev, int resume)
opregion->header = base;
if (memcmp(opregion->header->signature, OPREGION_SIGNATURE, 16)) {
- DRM_DEBUG("opregion signature mismatch\n");
+ DRM_DEBUG_DRIVER("opregion signature mismatch\n");
err = -EINVAL;
goto err_out;
}
mboxes = opregion->header->mboxes;
if (mboxes & MBOX_ACPI) {
- DRM_DEBUG("Public ACPI methods supported\n");
+ DRM_DEBUG_DRIVER("Public ACPI methods supported\n");
opregion->acpi = base + OPREGION_ACPI_OFFSET;
if (drm_core_check_feature(dev, DRIVER_MODESET))
intel_didl_outputs(dev);
} else {
- DRM_DEBUG("Public ACPI methods not supported\n");
+ DRM_DEBUG_DRIVER("Public ACPI methods not supported\n");
err = -ENOTSUPP;
goto err_out;
}
opregion->enabled = 1;
if (mboxes & MBOX_SWSCI) {
- DRM_DEBUG("SWSCI supported\n");
+ DRM_DEBUG_DRIVER("SWSCI supported\n");
opregion->swsci = base + OPREGION_SWSCI_OFFSET;
}
if (mboxes & MBOX_ASLE) {
- DRM_DEBUG("ASLE supported\n");
+ DRM_DEBUG_DRIVER("ASLE supported\n");
opregion->asle = base + OPREGION_ASLE_OFFSET;
opregion_enable_asle(dev);
}