diff options
Diffstat (limited to 'linux-core/i915_opregion.c')
-rw-r--r-- | linux-core/i915_opregion.c | 389 |
1 files changed, 0 insertions, 389 deletions
diff --git a/linux-core/i915_opregion.c b/linux-core/i915_opregion.c deleted file mode 100644 index 1fa599ea..00000000 --- a/linux-core/i915_opregion.c +++ /dev/null @@ -1,389 +0,0 @@ -/* - * - * Copyright 2008 Intel Corporation <hong.liu@intel.com> - * Copyright 2008 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, 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 INTEL 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. - * - */ - -#include <linux/acpi.h> - -#include "drmP.h" -#include "i915_drm.h" -#include "i915_drv.h" - -#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,25) -#define PCI_ASLE 0xe4 -#define PCI_ASLS 0xfc - -#define OPREGION_SZ (8*1024) -#define OPREGION_HEADER_OFFSET 0 -#define OPREGION_ACPI_OFFSET 0x100 -#define OPREGION_SWSCI_OFFSET 0x200 -#define OPREGION_ASLE_OFFSET 0x300 -#define OPREGION_VBT_OFFSET 0x1000 - -#define OPREGION_SIGNATURE "IntelGraphicsMem" -#define MBOX_ACPI (1<<0) -#define MBOX_SWSCI (1<<1) -#define MBOX_ASLE (1<<2) - -/* _DOD id definitions */ -#define OUTPUT_CONNECTOR_MSK 0xf000 -#define OUTPUT_CONNECTOR_OFFSET 12 - -#define OUTPUT_PORT_MSK 0x00f0 -#define OUTPUT_PORT_OFFSET 4 - #define OUTPUT_PORT_ANALOG 0 - #define OUTPUT_PORT_LVDS 1 - #define OUTPUT_PORT_SDVOB 2 - #define OUTPUT_PORT_SDVOC 3 - #define OUTPUT_PORT_TV 4 - -#define OUTPUT_DISPLAY_MSK 0x0f00 -#define OUTPUT_DISPLAY_OFFSET 8 - #define OUTPUT_DISPLAY_OTHER 0 - #define OUTPUT_DISPLAY_VGA 1 - #define OUTPUT_DISPLAY_TV 2 - #define OUTPUT_DISPLAY_DIGI 3 - #define OUTPUT_DISPLAY_FLAT_PANEL 4 - -/* predefined id for integrated LVDS and VGA connector */ -#define OUTPUT_INT_LVDS 0x00000110 -#define OUTPUT_INT_VGA 0x80000100 - -struct opregion_header { - u8 signature[16]; - u32 size; - u32 opregion_ver; - u8 bios_ver[32]; - u8 vbios_ver[16]; - u8 driver_ver[16]; - u32 mboxes; - u8 reserved[164]; -} __attribute__((packed)); - -/* OpRegion mailbox #1: public ACPI methods */ -struct opregion_acpi { - u32 drdy; /* driver readiness */ - u32 csts; /* notification status */ - u32 cevt; /* current event */ - u8 rsvd1[20]; - u32 didl[8]; /* supported display devices ID list */ - u32 cpdl[8]; /* currently presented display list */ - u32 cadl[8]; /* currently active display list */ - u32 nadl[8]; /* next active devices list */ - u32 aslp; /* ASL sleep time-out */ - u32 tidx; /* toggle table index */ - u32 chpd; /* current hotplug enable indicator */ - u32 clid; /* current lid state*/ - u32 cdck; /* current docking state */ - u32 sxsw; /* Sx state resume */ - u32 evts; /* ASL supported events */ - u32 cnot; /* current OS notification */ - u32 nrdy; /* driver status */ - u8 rsvd2[60]; -} __attribute__((packed)); - -/* OpRegion mailbox #2: SWSCI */ -struct opregion_swsci { - u32 scic; /* SWSCI command|status|data */ - u32 parm; /* command parameters */ - u32 dslp; /* driver sleep time-out */ - u8 rsvd[244]; -} __attribute__((packed)); - -/* OpRegion mailbox #3: ASLE */ -struct opregion_asle { - u32 ardy; /* driver readiness */ - u32 aslc; /* ASLE interrupt command */ - u32 tche; /* technology enabled indicator */ - u32 alsi; /* current ALS illuminance reading */ - u32 bclp; /* backlight brightness to set */ - u32 pfit; /* panel fitting state */ - u32 cblv; /* current brightness level */ - u16 bclm[20]; /* backlight level duty cycle mapping table */ - u32 cpfm; /* current panel fitting mode */ - u32 epfm; /* enabled panel fitting modes */ - u8 plut[74]; /* panel LUT and identifier */ - u32 pfmb; /* PWM freq and min brightness */ - u8 rsvd[102]; -} __attribute__((packed)); - -/* ASLE irq request bits */ -#define ASLE_SET_ALS_ILLUM (1 << 0) -#define ASLE_SET_BACKLIGHT (1 << 1) -#define ASLE_SET_PFIT (1 << 2) -#define ASLE_SET_PWM_FREQ (1 << 3) -#define ASLE_REQ_MSK 0xf - -/* response bits of ASLE irq request */ -#define ASLE_ALS_ILLUM_FAIL (2<<10) -#define ASLE_BACKLIGHT_FAIL (2<<12) -#define ASLE_PFIT_FAIL (2<<14) -#define ASLE_PWM_FREQ_FAIL (2<<16) - -/* ASLE backlight brightness to set */ -#define ASLE_BCLP_VALID (1<<31) -#define ASLE_BCLP_MSK (~(1<<31)) - -/* ASLE panel fitting request */ -#define ASLE_PFIT_VALID (1<<31) -#define ASLE_PFIT_CENTER (1<<0) -#define ASLE_PFIT_STRETCH_TEXT (1<<1) -#define ASLE_PFIT_STRETCH_GFX (1<<2) - -/* PWM frequency and minimum brightness */ -#define ASLE_PFMB_BRIGHTNESS_MASK (0xff) -#define ASLE_PFMB_BRIGHTNESS_VALID (1<<8) -#define ASLE_PFMB_PWM_MASK (0x7ffffe00) -#define ASLE_PFMB_PWM_VALID (1<<31) - -#define ASLE_CBLV_VALID (1<<31) - -static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - struct opregion_asle *asle = dev_priv->opregion.asle; - u32 blc_pwm_ctl; - - if (!(bclp & ASLE_BCLP_VALID)) - return ASLE_BACKLIGHT_FAIL; - - bclp &= ASLE_BCLP_MSK; - if (bclp < 0 || bclp > 255) - return ASLE_BACKLIGHT_FAIL; - - blc_pwm_ctl = I915_READ(BLC_PWM_CTL); - blc_pwm_ctl &= ~BACKLIGHT_DUTY_CYCLE_MASK; - I915_WRITE(BLC_PWM_CTL, blc_pwm_ctl | ((bclp * 0x101) -1)); - asle->cblv = (bclp*0x64)/0xff | ASLE_CBLV_VALID; - - return 0; -} - -static u32 asle_set_als_illum(struct drm_device *dev, u32 alsi) -{ - return 0; -} - -static u32 asle_set_pwm_freq(struct drm_device *dev, u32 pfmb) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - if (pfmb & ASLE_PFMB_PWM_VALID) { - u32 blc_pwm_ctl = I915_READ(BLC_PWM_CTL); - u32 pwm = pfmb & ASLE_PFMB_PWM_MASK; - blc_pwm_ctl &= BACKLIGHT_DUTY_CYCLE_MASK; - pwm = pwm >> 9; - // FIXME - what do we do with the PWM? - } - return 0; -} - -static u32 asle_set_pfit(struct drm_device *dev, u32 pfit) -{ - if (!(pfit & ASLE_PFIT_VALID)) - return ASLE_PFIT_FAIL; - return 0; -} - -void opregion_asle_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("non asle set request??\n"); - return; - } - - if (asle_req & ASLE_SET_ALS_ILLUM) - asle_stat |= asle_set_als_illum(dev, asle->alsi); - - if (asle_req & ASLE_SET_BACKLIGHT) - asle_stat |= asle_set_backlight(dev, asle->bclp); - - if (asle_req & ASLE_SET_PFIT) - asle_stat |= asle_set_pfit(dev, asle->pfit); - - if (asle_req & ASLE_SET_PWM_FREQ) - asle_stat |= asle_set_pwm_freq(dev, asle->pfmb); - - asle->aslc = asle_stat; -} - -#define ASLE_ALS_EN (1<<0) -#define ASLE_BLC_EN (1<<1) -#define ASLE_PFIT_EN (1<<2) -#define ASLE_PFMB_EN (1<<3) - -void opregion_enable_asle(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - struct opregion_asle *asle = dev_priv->opregion.asle; - - if (asle) { - if (IS_MOBILE(dev)) { - u32 pipeb_stats = I915_READ(PIPEBSTAT); - /* Some hardware uses the legacy backlight controller - to signal interrupts, so we need to set up pipe B - to generate an IRQ on writes */ - pipeb_stats |= I915_LEGACY_BLC_EVENT_ENABLE; - I915_WRITE(PIPEBSTAT, pipeb_stats); - - dev_priv->irq_mask_reg &= - ~I915_DISPLAY_PIPE_B_EVENT_INTERRUPT; - } - - dev_priv->irq_mask_reg &= ~I915_ASLE_INTERRUPT; - - asle->tche = ASLE_ALS_EN | ASLE_BLC_EN | ASLE_PFIT_EN | - ASLE_PFMB_EN; - asle->ardy = 1; - } -} - -#define ACPI_EV_DISPLAY_SWITCH (1<<0) -#define ACPI_EV_LID (1<<1) -#define ACPI_EV_DOCK (1<<2) - -static struct intel_opregion *system_opregion; - -int intel_opregion_video_event(struct notifier_block *nb, unsigned long val, - void *data) -{ - /* The only video events relevant to opregion are 0x80. These indicate - either a docking event, lid switch or display switch request. In - Linux, these are handled by the dock, button and video drivers. - We might want to fix the video driver to be opregion-aware in - future, but right now we just indicate to the firmware that the - request has been handled */ - - struct opregion_acpi *acpi; - - if (!system_opregion) - return NOTIFY_DONE; - - acpi = system_opregion->acpi; - acpi->csts = 0; - - return NOTIFY_OK; -} - -static struct notifier_block intel_opregion_notifier = { - .notifier_call = intel_opregion_video_event, -}; - -int intel_opregion_init(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_opregion *opregion = &dev_priv->opregion; - void *base; - u32 asls, mboxes; - int err = 0; - - pci_read_config_dword(dev->pdev, PCI_ASLS, &asls); - DRM_DEBUG("graphic opregion physical addr: 0x%x\n", asls); - if (asls == 0) { - DRM_DEBUG("ACPI OpRegion not supported!\n"); - return -ENOTSUPP; - } - - base = ioremap(asls, OPREGION_SZ); - if (!base) - return -ENOMEM; - - opregion->header = base; - if (memcmp(opregion->header->signature, OPREGION_SIGNATURE, 16)) { - DRM_DEBUG("opregion signature mismatch\n"); - err = -EINVAL; - goto err_out; - } - - mboxes = opregion->header->mboxes; - if (mboxes & MBOX_ACPI) { - DRM_DEBUG("Public ACPI methods supported\n"); - opregion->acpi = base + OPREGION_ACPI_OFFSET; - } else { - DRM_DEBUG("Public ACPI methods not supported\n"); - err = -ENOTSUPP; - goto err_out; - } - opregion->enabled = 1; - - if (mboxes & MBOX_SWSCI) { - DRM_DEBUG("SWSCI supported\n"); - opregion->swsci = base + OPREGION_SWSCI_OFFSET; - } - if (mboxes & MBOX_ASLE) { - DRM_DEBUG("ASLE supported\n"); - opregion->asle = base + OPREGION_ASLE_OFFSET; - } - - /* Notify BIOS we are ready to handle ACPI video ext notifs. - * Right now, all the events are handled by the ACPI video module. - * We don't actually need to do anything with them. */ - opregion->acpi->csts = 0; - opregion->acpi->drdy = 1; - - system_opregion = opregion; - register_acpi_notifier(&intel_opregion_notifier); - - return 0; - -err_out: - iounmap(opregion->header); - opregion->header = NULL; - return err; -} - -void intel_opregion_free(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_opregion *opregion = &dev_priv->opregion; - - if (!opregion->enabled) - return; - - opregion->acpi->drdy = 0; - - system_opregion = NULL; - unregister_acpi_notifier(&intel_opregion_notifier); - - /* just clear all opregion memory pointers now */ - iounmap(opregion->header); - opregion->header = NULL; - opregion->acpi = NULL; - opregion->swsci = NULL; - opregion->asle = NULL; - - opregion->enabled = 0; -} -#endif |