40,6 → 40,9 |
|
#define PCI_ASLE 0xe4 |
#define PCI_ASLS 0xfc |
#define PCI_SWSCI 0xe8 |
#define PCI_SWSCI_SCISEL (1 << 15) |
#define PCI_SWSCI_GSSCIE (1 << 0) |
|
#define OPREGION_HEADER_OFFSET 0 |
#define OPREGION_ACPI_OFFSET 0x100 |
63,7 → 66,7 |
u8 driver_ver[16]; |
u32 mboxes; |
u8 reserved[164]; |
} __attribute__((packed)); |
} __packed; |
|
/* OpRegion mailbox #1: public ACPI methods */ |
struct opregion_acpi { |
85,7 → 88,7 |
u32 cnot; /* current OS notification */ |
u32 nrdy; /* driver status */ |
u8 rsvd2[60]; |
} __attribute__((packed)); |
} __packed; |
|
/* OpRegion mailbox #2: SWSCI */ |
struct opregion_swsci { |
93,7 → 96,7 |
u32 parm; /* command parameters */ |
u32 dslp; /* driver sleep time-out */ |
u8 rsvd[244]; |
} __attribute__((packed)); |
} __packed; |
|
/* OpRegion mailbox #3: ASLE */ |
struct opregion_asle { |
109,26 → 112,39 |
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)); |
u32 cddv; /* color correction default values */ |
u32 pcft; /* power conservation features */ |
u32 srot; /* supported rotation angles */ |
u32 iuer; /* IUER events */ |
u8 rsvd[86]; |
} __packed; |
|
/* Driver readiness indicator */ |
#define ASLE_ARDY_READY (1 << 0) |
#define ASLE_ARDY_NOT_READY (0 << 0) |
|
/* 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 |
/* ASLE Interrupt Command (ASLC) bits */ |
#define ASLC_SET_ALS_ILLUM (1 << 0) |
#define ASLC_SET_BACKLIGHT (1 << 1) |
#define ASLC_SET_PFIT (1 << 2) |
#define ASLC_SET_PWM_FREQ (1 << 3) |
#define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4) |
#define ASLC_BUTTON_ARRAY (1 << 5) |
#define ASLC_CONVERTIBLE_INDICATOR (1 << 6) |
#define ASLC_DOCKING_INDICATOR (1 << 7) |
#define ASLC_ISCT_STATE_CHANGE (1 << 8) |
#define ASLC_REQ_MSK 0x1ff |
/* response bits */ |
#define ASLC_ALS_ILLUM_FAILED (1 << 10) |
#define ASLC_BACKLIGHT_FAILED (1 << 12) |
#define ASLC_PFIT_FAILED (1 << 14) |
#define ASLC_PWM_FREQ_FAILED (1 << 16) |
#define ASLC_ROTATION_ANGLES_FAILED (1 << 18) |
#define ASLC_BUTTON_ARRAY_FAILED (1 << 20) |
#define ASLC_CONVERTIBLE_FAILED (1 << 22) |
#define ASLC_DOCKING_FAILED (1 << 24) |
#define ASLC_ISCT_STATE_FAILED (1 << 26) |
|
/* 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) |
|
/* Technology enabled indicator */ |
#define ASLE_TCHE_ALS_EN (1 << 0) |
#define ASLE_TCHE_BLC_EN (1 << 1) |
153,6 → 169,60 |
|
#define ASLE_CBLV_VALID (1<<31) |
|
/* IUER */ |
#define ASLE_IUER_DOCKING (1 << 7) |
#define ASLE_IUER_CONVERTIBLE (1 << 6) |
#define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4) |
#define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3) |
#define ASLE_IUER_VOLUME_UP_BTN (1 << 2) |
#define ASLE_IUER_WINDOWS_BTN (1 << 1) |
#define ASLE_IUER_POWER_BTN (1 << 0) |
|
/* Software System Control Interrupt (SWSCI) */ |
#define SWSCI_SCIC_INDICATOR (1 << 0) |
#define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1 |
#define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1) |
#define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8 |
#define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8) |
#define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8 |
#define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8) |
#define SWSCI_SCIC_EXIT_STATUS_SHIFT 5 |
#define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5) |
#define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1 |
|
#define SWSCI_FUNCTION_CODE(main, sub) \ |
((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \ |
(sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT) |
|
/* SWSCI: Get BIOS Data (GBDA) */ |
#define SWSCI_GBDA 4 |
#define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0) |
#define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1) |
#define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4) |
#define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5) |
#define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6) |
#define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7) |
#define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10) |
|
/* SWSCI: System BIOS Callbacks (SBCB) */ |
#define SWSCI_SBCB 6 |
#define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0) |
#define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1) |
#define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3) |
#define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4) |
#define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5) |
#define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6) |
#define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7) |
#define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8) |
#define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9) |
#define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10) |
#define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11) |
#define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16) |
#define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17) |
#define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18) |
#define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19) |
#define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21) |
|
#define ACPI_OTHER_OUTPUT (0<<8) |
#define ACPI_VGA_OUTPUT (1<<8) |
#define ACPI_TV_OUTPUT (2<<8) |
160,8 → 230,615 |
#define ACPI_LVDS_OUTPUT (4<<8) |
|
#ifdef CONFIG_ACPI |
#endif |
static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out) |
{ |
struct drm_i915_private *dev_priv = dev->dev_private; |
struct opregion_swsci __iomem *swsci = dev_priv->opregion.swsci; |
u32 main_function, sub_function, scic; |
u16 pci_swsci; |
u32 dslp; |
|
if (!swsci) |
return -ENODEV; |
|
main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >> |
SWSCI_SCIC_MAIN_FUNCTION_SHIFT; |
sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >> |
SWSCI_SCIC_SUB_FUNCTION_SHIFT; |
|
/* Check if we can call the function. See swsci_setup for details. */ |
if (main_function == SWSCI_SBCB) { |
if ((dev_priv->opregion.swsci_sbcb_sub_functions & |
(1 << sub_function)) == 0) |
return -EINVAL; |
} else if (main_function == SWSCI_GBDA) { |
if ((dev_priv->opregion.swsci_gbda_sub_functions & |
(1 << sub_function)) == 0) |
return -EINVAL; |
} |
|
/* Driver sleep timeout in ms. */ |
dslp = ioread32(&swsci->dslp); |
if (!dslp) { |
/* The spec says 2ms should be the default, but it's too small |
* for some machines. */ |
dslp = 50; |
} else if (dslp > 500) { |
/* Hey bios, trust must be earned. */ |
WARN_ONCE(1, "excessive driver sleep timeout (DSPL) %u\n", dslp); |
dslp = 500; |
} |
|
/* The spec tells us to do this, but we are the only user... */ |
scic = ioread32(&swsci->scic); |
if (scic & SWSCI_SCIC_INDICATOR) { |
DRM_DEBUG_DRIVER("SWSCI request already in progress\n"); |
return -EBUSY; |
} |
|
scic = function | SWSCI_SCIC_INDICATOR; |
|
iowrite32(parm, &swsci->parm); |
iowrite32(scic, &swsci->scic); |
|
/* Ensure SCI event is selected and event trigger is cleared. */ |
pci_read_config_word(dev->pdev, PCI_SWSCI, &pci_swsci); |
if (!(pci_swsci & PCI_SWSCI_SCISEL) || (pci_swsci & PCI_SWSCI_GSSCIE)) { |
pci_swsci |= PCI_SWSCI_SCISEL; |
pci_swsci &= ~PCI_SWSCI_GSSCIE; |
pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
} |
|
/* Use event trigger to tell bios to check the mail. */ |
pci_swsci |= PCI_SWSCI_GSSCIE; |
pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci); |
|
/* Poll for the result. */ |
#define C (((scic = ioread32(&swsci->scic)) & SWSCI_SCIC_INDICATOR) == 0) |
if (wait_for(C, dslp)) { |
DRM_DEBUG_DRIVER("SWSCI request timed out\n"); |
return -ETIMEDOUT; |
} |
|
scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >> |
SWSCI_SCIC_EXIT_STATUS_SHIFT; |
|
/* Note: scic == 0 is an error! */ |
if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) { |
DRM_DEBUG_DRIVER("SWSCI request error %u\n", scic); |
return -EIO; |
} |
|
if (parm_out) |
*parm_out = ioread32(&swsci->parm); |
|
return 0; |
|
#undef C |
} |
|
#define DISPLAY_TYPE_CRT 0 |
#define DISPLAY_TYPE_TV 1 |
#define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2 |
#define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3 |
|
int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, |
bool enable) |
{ |
struct drm_device *dev = intel_encoder->base.dev; |
u32 parm = 0; |
u32 type = 0; |
u32 port; |
|
/* don't care about old stuff for now */ |
if (!HAS_DDI(dev)) |
return 0; |
|
port = intel_ddi_get_encoder_port(intel_encoder); |
if (port == PORT_E) { |
port = 0; |
} else { |
parm |= 1 << port; |
port++; |
} |
|
if (!enable) |
parm |= 4 << 8; |
|
switch (intel_encoder->type) { |
case INTEL_OUTPUT_ANALOG: |
type = DISPLAY_TYPE_CRT; |
break; |
case INTEL_OUTPUT_UNKNOWN: |
case INTEL_OUTPUT_DISPLAYPORT: |
case INTEL_OUTPUT_HDMI: |
type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL; |
break; |
case INTEL_OUTPUT_EDP: |
type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL; |
break; |
default: |
WARN_ONCE(1, "unsupported intel_encoder type %d\n", |
intel_encoder->type); |
return -EINVAL; |
} |
|
parm |= type << (16 + port * 3); |
|
return swsci(dev, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL); |
} |
|
static const struct { |
pci_power_t pci_power_state; |
u32 parm; |
} power_state_map[] = { |
{ PCI_D0, 0x00 }, |
{ PCI_D1, 0x01 }, |
{ PCI_D2, 0x02 }, |
{ PCI_D3hot, 0x04 }, |
{ PCI_D3cold, 0x04 }, |
}; |
|
int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state) |
{ |
int i; |
|
if (!HAS_DDI(dev)) |
return 0; |
|
for (i = 0; i < ARRAY_SIZE(power_state_map); i++) { |
if (state == power_state_map[i].pci_power_state) |
return swsci(dev, SWSCI_SBCB_ADAPTER_POWER_STATE, |
power_state_map[i].parm, NULL); |
} |
|
return -EINVAL; |
} |
|
static u32 asle_set_backlight(struct drm_device *dev, u32 bclp) |
{ |
struct drm_i915_private *dev_priv = dev->dev_private; |
struct intel_connector *intel_connector; |
struct opregion_asle __iomem *asle = dev_priv->opregion.asle; |
|
DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp); |
|
if (!(bclp & ASLE_BCLP_VALID)) |
return ASLC_BACKLIGHT_FAILED; |
|
bclp &= ASLE_BCLP_MSK; |
if (bclp > 255) |
return ASLC_BACKLIGHT_FAILED; |
|
mutex_lock(&dev->mode_config.mutex); |
|
/* |
* Update backlight on all connectors that support backlight (usually |
* only one). |
*/ |
DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp); |
list_for_each_entry(intel_connector, &dev->mode_config.connector_list, base.head) |
intel_panel_set_backlight(intel_connector, bclp, 255); |
iowrite32(DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID, &asle->cblv); |
|
mutex_unlock(&dev->mode_config.mutex); |
|
|
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 */ |
DRM_DEBUG_DRIVER("Illum is not supported\n"); |
return ASLC_ALS_ILLUM_FAILED; |
} |
|
static u32 asle_set_pwm_freq(struct drm_device *dev, u32 pfmb) |
{ |
DRM_DEBUG_DRIVER("PWM freq is not supported\n"); |
return ASLC_PWM_FREQ_FAILED; |
} |
|
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 */ |
DRM_DEBUG_DRIVER("Pfit is not supported\n"); |
return ASLC_PFIT_FAILED; |
} |
|
static u32 asle_set_supported_rotation_angles(struct drm_device *dev, u32 srot) |
{ |
DRM_DEBUG_DRIVER("SROT is not supported\n"); |
return ASLC_ROTATION_ANGLES_FAILED; |
} |
|
static u32 asle_set_button_array(struct drm_device *dev, u32 iuer) |
{ |
if (!iuer) |
DRM_DEBUG_DRIVER("Button array event is not supported (nothing)\n"); |
if (iuer & ASLE_IUER_ROTATION_LOCK_BTN) |
DRM_DEBUG_DRIVER("Button array event is not supported (rotation lock)\n"); |
if (iuer & ASLE_IUER_VOLUME_DOWN_BTN) |
DRM_DEBUG_DRIVER("Button array event is not supported (volume down)\n"); |
if (iuer & ASLE_IUER_VOLUME_UP_BTN) |
DRM_DEBUG_DRIVER("Button array event is not supported (volume up)\n"); |
if (iuer & ASLE_IUER_WINDOWS_BTN) |
DRM_DEBUG_DRIVER("Button array event is not supported (windows)\n"); |
if (iuer & ASLE_IUER_POWER_BTN) |
DRM_DEBUG_DRIVER("Button array event is not supported (power)\n"); |
|
return ASLC_BUTTON_ARRAY_FAILED; |
} |
|
static u32 asle_set_convertible(struct drm_device *dev, u32 iuer) |
{ |
if (iuer & ASLE_IUER_CONVERTIBLE) |
DRM_DEBUG_DRIVER("Convertible is not supported (clamshell)\n"); |
else |
DRM_DEBUG_DRIVER("Convertible is not supported (slate)\n"); |
|
return ASLC_CONVERTIBLE_FAILED; |
} |
|
static u32 asle_set_docking(struct drm_device *dev, u32 iuer) |
{ |
if (iuer & ASLE_IUER_DOCKING) |
DRM_DEBUG_DRIVER("Docking is not supported (docked)\n"); |
else |
DRM_DEBUG_DRIVER("Docking is not supported (undocked)\n"); |
|
return ASLC_DOCKING_FAILED; |
} |
|
static u32 asle_isct_state(struct drm_device *dev) |
{ |
DRM_DEBUG_DRIVER("ISCT is not supported\n"); |
return ASLC_ISCT_STATE_FAILED; |
} |
|
static void asle_work(struct work_struct *work) |
{ |
struct intel_opregion *opregion = |
container_of(work, struct intel_opregion, asle_work); |
struct drm_i915_private *dev_priv = |
container_of(opregion, struct drm_i915_private, opregion); |
struct drm_device *dev = dev_priv->dev; |
struct opregion_asle __iomem *asle = dev_priv->opregion.asle; |
u32 aslc_stat = 0; |
u32 aslc_req; |
|
if (!asle) |
return; |
|
aslc_req = ioread32(&asle->aslc); |
|
if (!(aslc_req & ASLC_REQ_MSK)) { |
DRM_DEBUG_DRIVER("No request on ASLC interrupt 0x%08x\n", |
aslc_req); |
return; |
} |
|
if (aslc_req & ASLC_SET_ALS_ILLUM) |
aslc_stat |= asle_set_als_illum(dev, ioread32(&asle->alsi)); |
|
if (aslc_req & ASLC_SET_BACKLIGHT) |
aslc_stat |= asle_set_backlight(dev, ioread32(&asle->bclp)); |
|
if (aslc_req & ASLC_SET_PFIT) |
aslc_stat |= asle_set_pfit(dev, ioread32(&asle->pfit)); |
|
if (aslc_req & ASLC_SET_PWM_FREQ) |
aslc_stat |= asle_set_pwm_freq(dev, ioread32(&asle->pfmb)); |
|
if (aslc_req & ASLC_SUPPORTED_ROTATION_ANGLES) |
aslc_stat |= asle_set_supported_rotation_angles(dev, |
ioread32(&asle->srot)); |
|
if (aslc_req & ASLC_BUTTON_ARRAY) |
aslc_stat |= asle_set_button_array(dev, ioread32(&asle->iuer)); |
|
if (aslc_req & ASLC_CONVERTIBLE_INDICATOR) |
aslc_stat |= asle_set_convertible(dev, ioread32(&asle->iuer)); |
|
if (aslc_req & ASLC_DOCKING_INDICATOR) |
aslc_stat |= asle_set_docking(dev, ioread32(&asle->iuer)); |
|
if (aslc_req & ASLC_ISCT_STATE_CHANGE) |
aslc_stat |= asle_isct_state(dev); |
|
iowrite32(aslc_stat, &asle->aslc); |
} |
|
void intel_opregion_asle_intr(struct drm_device *dev) |
{ |
struct drm_i915_private *dev_priv = dev->dev_private; |
|
if (dev_priv->opregion.asle) |
schedule_work(&dev_priv->opregion.asle_work); |
} |
|
#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 __iomem *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 && |
(ioread32(&acpi->cevt) & 1) == 0) |
ret = NOTIFY_BAD; |
|
iowrite32(0, &acpi->csts); |
|
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; |
u32 temp; |
int i = 0; |
|
handle = ACPI_HANDLE(&dev->pdev->dev); |
if (!handle || acpi_bus_get_device(handle, &acpi_dev)) |
return; |
|
if (acpi_is_video_device(handle)) |
acpi_video_bus = acpi_dev; |
else { |
list_for_each_entry(acpi_cdev, &acpi_dev->children, node) { |
if (acpi_is_video_device(acpi_cdev->handle)) { |
acpi_video_bus = acpi_cdev; |
break; |
} |
} |
} |
|
if (!acpi_video_bus) { |
pr_warn("No ACPI video bus found\n"); |
return; |
} |
|
list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) { |
if (i >= 8) { |
dev_dbg(&dev->pdev->dev, |
"More than 8 outputs detected via ACPI\n"); |
return; |
} |
status = |
acpi_evaluate_integer(acpi_cdev->handle, "_ADR", |
NULL, &device_id); |
if (ACPI_SUCCESS(status)) { |
if (!device_id) |
goto blind_set; |
iowrite32((u32)(device_id & 0x0f0f), |
&opregion->acpi->didl[i]); |
i++; |
} |
} |
|
end: |
/* If fewer than 8 outputs, the list must be null terminated */ |
if (i < 8) |
iowrite32(0, &opregion->acpi->didl[i]); |
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_dbg(&dev->pdev->dev, |
"More than 8 outputs in connector list\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; |
} |
temp = ioread32(&opregion->acpi->didl[i]); |
iowrite32(temp | (1<<31) | output_type | i, |
&opregion->acpi->didl[i]); |
i++; |
} |
goto end; |
} |
|
static void intel_setup_cadls(struct drm_device *dev) |
{ |
struct drm_i915_private *dev_priv = dev->dev_private; |
struct intel_opregion *opregion = &dev_priv->opregion; |
int i = 0; |
u32 disp_id; |
|
/* Initialize the CADL field by duplicating the DIDL values. |
* Technically, this is not always correct as display outputs may exist, |
* but not active. This initialization is necessary for some Clevo |
* laptops that check this field before processing the brightness and |
* display switching hotkeys. Just like DIDL, CADL is NULL-terminated if |
* there are less than eight devices. */ |
do { |
disp_id = ioread32(&opregion->acpi->didl[i]); |
iowrite32(disp_id, &opregion->acpi->cadl[i]); |
} while (++i < 8 && disp_id != 0); |
} |
|
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); |
intel_setup_cadls(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. */ |
iowrite32(0, &opregion->acpi->csts); |
iowrite32(1, &opregion->acpi->drdy); |
|
system_opregion = opregion; |
register_acpi_notifier(&intel_opregion_notifier); |
} |
|
if (opregion->asle) { |
iowrite32(ASLE_TCHE_BLC_EN, &opregion->asle->tche); |
iowrite32(ASLE_ARDY_READY, &opregion->asle->ardy); |
} |
} |
|
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->asle) |
iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy); |
|
cancel_work_sync(&dev_priv->opregion.asle_work); |
|
if (opregion->acpi) { |
iowrite32(0, &opregion->acpi->drdy); |
|
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; |
opregion->lid_state = NULL; |
} |
|
static void swsci_setup(struct drm_device *dev) |
{ |
struct drm_i915_private *dev_priv = dev->dev_private; |
struct intel_opregion *opregion = &dev_priv->opregion; |
bool requested_callbacks = false; |
u32 tmp; |
|
/* Sub-function code 0 is okay, let's allow them. */ |
opregion->swsci_gbda_sub_functions = 1; |
opregion->swsci_sbcb_sub_functions = 1; |
|
/* We use GBDA to ask for supported GBDA calls. */ |
if (swsci(dev, SWSCI_GBDA_SUPPORTED_CALLS, 0, &tmp) == 0) { |
/* make the bits match the sub-function codes */ |
tmp <<= 1; |
opregion->swsci_gbda_sub_functions |= tmp; |
} |
|
/* |
* We also use GBDA to ask for _requested_ SBCB callbacks. The driver |
* must not call interfaces that are not specifically requested by the |
* bios. |
*/ |
if (swsci(dev, SWSCI_GBDA_REQUESTED_CALLBACKS, 0, &tmp) == 0) { |
/* here, the bits already match sub-function codes */ |
opregion->swsci_sbcb_sub_functions |= tmp; |
requested_callbacks = true; |
} |
|
/* |
* But we use SBCB to ask for _supported_ SBCB calls. This does not mean |
* the callback is _requested_. But we still can't call interfaces that |
* are not requested. |
*/ |
if (swsci(dev, SWSCI_SBCB_SUPPORTED_CALLBACKS, 0, &tmp) == 0) { |
/* make the bits match the sub-function codes */ |
u32 low = tmp & 0x7ff; |
u32 high = tmp & ~0xfff; /* bit 11 is reserved */ |
tmp = (high << 4) | (low << 1) | 1; |
|
/* best guess what to do with supported wrt requested */ |
if (requested_callbacks) { |
u32 req = opregion->swsci_sbcb_sub_functions; |
if ((req & tmp) != req) |
DRM_DEBUG_DRIVER("SWSCI BIOS requested (%08x) SBCB callbacks that are not supported (%08x)\n", req, tmp); |
/* XXX: for now, trust the requested callbacks */ |
/* opregion->swsci_sbcb_sub_functions &= tmp; */ |
} else { |
opregion->swsci_sbcb_sub_functions |= tmp; |
} |
} |
|
DRM_DEBUG_DRIVER("SWSCI GBDA callbacks %08x, SBCB callbacks %08x\n", |
opregion->swsci_gbda_sub_functions, |
opregion->swsci_sbcb_sub_functions); |
} |
#else /* CONFIG_ACPI */ |
static inline void swsci_setup(struct drm_device *dev) {} |
#endif /* CONFIG_ACPI */ |
|
int intel_opregion_setup(struct drm_device *dev) |
{ |
struct drm_i915_private *dev_priv = dev->dev_private; |
203,6 → 880,7 |
if (mboxes & MBOX_SWSCI) { |
DRM_DEBUG_DRIVER("SWSCI supported\n"); |
opregion->swsci = base + OPREGION_SWSCI_OFFSET; |
swsci_setup(dev); |
} |
if (mboxes & MBOX_ASLE) { |
DRM_DEBUG_DRIVER("ASLE supported\n"); |