208 lines
6.7 KiB
C
208 lines
6.7 KiB
C
/*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
//#include <linux/acpi.h>
|
|
//#include <linux/acpi_io.h>
|
|
//#include <acpi/video.h>
|
|
#include <linux/errno.h>
|
|
|
|
|
|
#include <drm/drmP.h>
|
|
#include <drm/i915_drm.h>
|
|
#include "i915_drv.h"
|
|
#include "intel_drv.h"
|
|
|
|
#define PCI_ASLE 0xe4
|
|
#define PCI_ASLS 0xfc
|
|
|
|
#define OPREGION_HEADER_OFFSET 0
|
|
#define OPREGION_ACPI_OFFSET 0x100
|
|
#define ACPI_CLID 0x01ac /* current lid state indicator */
|
|
#define ACPI_CDCK 0x01b0 /* current docking state indicator */
|
|
#define OPREGION_SWSCI_OFFSET 0x200
|
|
#define OPREGION_ASLE_OFFSET 0x300
|
|
#define OPREGION_VBT_OFFSET 0x400
|
|
|
|
#define OPREGION_SIGNATURE "IntelGraphicsMem"
|
|
#define MBOX_ACPI (1<<0)
|
|
#define MBOX_SWSCI (1<<1)
|
|
#define MBOX_ASLE (1<<2)
|
|
|
|
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_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)
|
|
#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)
|
|
|
|
#define ACPI_OTHER_OUTPUT (0<<8)
|
|
#define ACPI_VGA_OUTPUT (1<<8)
|
|
#define ACPI_TV_OUTPUT (2<<8)
|
|
#define ACPI_DIGITAL_OUTPUT (3<<8)
|
|
#define ACPI_LVDS_OUTPUT (4<<8)
|
|
|
|
#ifdef CONFIG_ACPI
|
|
#endif
|
|
|
|
int intel_opregion_setup(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct intel_opregion *opregion = &dev_priv->opregion;
|
|
void __iomem *base;
|
|
u32 asls, mboxes;
|
|
char buf[sizeof(OPREGION_SIGNATURE)];
|
|
int err = 0;
|
|
|
|
pci_read_config_dword(dev->pdev, PCI_ASLS, &asls);
|
|
DRM_DEBUG_DRIVER("graphic opregion physical addr: 0x%x\n", asls);
|
|
if (asls == 0) {
|
|
DRM_DEBUG_DRIVER("ACPI OpRegion not supported!\n");
|
|
return -ENOTSUPP;
|
|
}
|
|
|
|
base = ioremap(asls, OPREGION_SIZE);
|
|
if (!base)
|
|
return -ENOMEM;
|
|
|
|
memcpy(buf, base, sizeof(buf));
|
|
|
|
if (memcmp(buf, OPREGION_SIGNATURE, 16)) {
|
|
DRM_DEBUG_DRIVER("opregion signature mismatch\n");
|
|
err = -EINVAL;
|
|
goto err_out;
|
|
}
|
|
opregion->header = base;
|
|
opregion->vbt = base + OPREGION_VBT_OFFSET;
|
|
|
|
opregion->lid_state = base + ACPI_CLID;
|
|
|
|
mboxes = ioread32(&opregion->header->mboxes);
|
|
if (mboxes & MBOX_ACPI) {
|
|
DRM_DEBUG_DRIVER("Public ACPI methods supported\n");
|
|
opregion->acpi = base + OPREGION_ACPI_OFFSET;
|
|
}
|
|
|
|
if (mboxes & MBOX_SWSCI) {
|
|
DRM_DEBUG_DRIVER("SWSCI supported\n");
|
|
opregion->swsci = base + OPREGION_SWSCI_OFFSET;
|
|
}
|
|
if (mboxes & MBOX_ASLE) {
|
|
DRM_DEBUG_DRIVER("ASLE supported\n");
|
|
opregion->asle = base + OPREGION_ASLE_OFFSET;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
iounmap(base);
|
|
return err;
|
|
}
|