523 lines
14 KiB
C
523 lines
14 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.
|
|
*
|
|
*/
|
|
|
|
#include <linux/acpi.h>
|
|
#include <linux/acpi_io.h>
|
|
#include <acpi/video.h>
|
|
|
|
#include "drmP.h"
|
|
#include "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
|
|
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 max;
|
|
|
|
if (!(bclp & ASLE_BCLP_VALID))
|
|
return ASLE_BACKLIGHT_FAILED;
|
|
|
|
bclp &= ASLE_BCLP_MSK;
|
|
if (bclp > 255)
|
|
return ASLE_BACKLIGHT_FAILED;
|
|
|
|
max = intel_panel_get_max_backlight(dev);
|
|
intel_panel_set_backlight(dev, bclp * max / 255);
|
|
asle->cblv = (bclp*0x64)/0xff | ASLE_CBLV_VALID;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static u32 asle_set_als_illum(struct drm_device *dev, u32 alsi)
|
|
{
|
|
/* alsi is the current ALS reading in lux. 0 indicates below sensor
|
|
range, 0xffff indicates above sensor range. 1-0xfffe are valid */
|
|
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)
|
|
{
|
|
/* Panel fitting is currently controlled by the X code, so this is a
|
|
noop until modesetting support works fully */
|
|
if (!(pfit & ASLE_PFIT_VALID))
|
|
return ASLE_PFIT_FAILED;
|
|
return 0;
|
|
}
|
|
|
|
void intel_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_DRIVER("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;
|
|
}
|
|
|
|
void intel_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(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)
|
|
#define ASLE_PFMB_EN (1<<3)
|
|
|
|
void intel_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))
|
|
intel_enable_asle(dev);
|
|
|
|
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;
|
|
|
|
static 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.
|
|
*/
|
|
|
|
struct opregion_acpi *acpi;
|
|
struct acpi_bus_event *event = data;
|
|
int ret = NOTIFY_OK;
|
|
|
|
if (strcmp(event->device_class, ACPI_VIDEO_CLASS) != 0)
|
|
return NOTIFY_DONE;
|
|
|
|
if (!system_opregion)
|
|
return NOTIFY_DONE;
|
|
|
|
acpi = system_opregion->acpi;
|
|
|
|
if (event->type == 0x80 && !(acpi->cevt & 0x1))
|
|
ret = NOTIFY_BAD;
|
|
|
|
acpi->csts = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct notifier_block intel_opregion_notifier = {
|
|
.notifier_call = intel_opregion_video_event,
|
|
};
|
|
|
|
/*
|
|
* Initialise the DIDL field in opregion. This passes a list of devices to
|
|
* the firmware. Values are defined by section B.4.2 of the ACPI specification
|
|
* (version 3)
|
|
*/
|
|
|
|
static void intel_didl_outputs(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct intel_opregion *opregion = &dev_priv->opregion;
|
|
struct drm_connector *connector;
|
|
acpi_handle handle;
|
|
struct acpi_device *acpi_dev, *acpi_cdev, *acpi_video_bus = NULL;
|
|
unsigned long long device_id;
|
|
acpi_status status;
|
|
int i = 0;
|
|
|
|
handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev);
|
|
if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &acpi_dev)))
|
|
return;
|
|
|
|
if (acpi_is_video_device(acpi_dev))
|
|
acpi_video_bus = acpi_dev;
|
|
else {
|
|
list_for_each_entry(acpi_cdev, &acpi_dev->children, node) {
|
|
if (acpi_is_video_device(acpi_cdev)) {
|
|
acpi_video_bus = acpi_cdev;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!acpi_video_bus) {
|
|
printk(KERN_WARNING "No ACPI video bus found\n");
|
|
return;
|
|
}
|
|
|
|
list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) {
|
|
if (i >= 8) {
|
|
dev_printk(KERN_ERR, &dev->pdev->dev,
|
|
"More than 8 outputs detected\n");
|
|
return;
|
|
}
|
|
status =
|
|
acpi_evaluate_integer(acpi_cdev->handle, "_ADR",
|
|
NULL, &device_id);
|
|
if (ACPI_SUCCESS(status)) {
|
|
if (!device_id)
|
|
goto blind_set;
|
|
opregion->acpi->didl[i] = (u32)(device_id & 0x0f0f);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
end:
|
|
/* If fewer than 8 outputs, the list must be null terminated */
|
|
if (i < 8)
|
|
opregion->acpi->didl[i] = 0;
|
|
return;
|
|
|
|
blind_set:
|
|
i = 0;
|
|
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
|
|
int output_type = ACPI_OTHER_OUTPUT;
|
|
if (i >= 8) {
|
|
dev_printk(KERN_ERR, &dev->pdev->dev,
|
|
"More than 8 outputs detected\n");
|
|
return;
|
|
}
|
|
switch (connector->connector_type) {
|
|
case DRM_MODE_CONNECTOR_VGA:
|
|
case DRM_MODE_CONNECTOR_DVIA:
|
|
output_type = ACPI_VGA_OUTPUT;
|
|
break;
|
|
case DRM_MODE_CONNECTOR_Composite:
|
|
case DRM_MODE_CONNECTOR_SVIDEO:
|
|
case DRM_MODE_CONNECTOR_Component:
|
|
case DRM_MODE_CONNECTOR_9PinDIN:
|
|
output_type = ACPI_TV_OUTPUT;
|
|
break;
|
|
case DRM_MODE_CONNECTOR_DVII:
|
|
case DRM_MODE_CONNECTOR_DVID:
|
|
case DRM_MODE_CONNECTOR_DisplayPort:
|
|
case DRM_MODE_CONNECTOR_HDMIA:
|
|
case DRM_MODE_CONNECTOR_HDMIB:
|
|
output_type = ACPI_DIGITAL_OUTPUT;
|
|
break;
|
|
case DRM_MODE_CONNECTOR_LVDS:
|
|
output_type = ACPI_LVDS_OUTPUT;
|
|
break;
|
|
}
|
|
opregion->acpi->didl[i] |= (1<<31) | output_type | i;
|
|
i++;
|
|
}
|
|
goto end;
|
|
}
|
|
|
|
void intel_opregion_init(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct intel_opregion *opregion = &dev_priv->opregion;
|
|
|
|
if (!opregion->header)
|
|
return;
|
|
|
|
if (opregion->acpi) {
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
intel_didl_outputs(dev);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
if (opregion->asle)
|
|
intel_opregion_enable_asle(dev);
|
|
}
|
|
|
|
void intel_opregion_fini(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct intel_opregion *opregion = &dev_priv->opregion;
|
|
|
|
if (!opregion->header)
|
|
return;
|
|
|
|
if (opregion->acpi) {
|
|
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->vbt = NULL;
|
|
}
|
|
#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 *base;
|
|
u32 asls, mboxes;
|
|
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 = acpi_os_ioremap(asls, OPREGION_SIZE);
|
|
if (!base)
|
|
return -ENOMEM;
|
|
|
|
if (memcmp(base, 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 = 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;
|
|
}
|