![Daniel Vetter](/assets/img/avatar_default.png)
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.15 (GNU/Linux) iQEcBAABAgAGBQJSogqUAAoJEHm+PkMAQRiGM2MIAJrr5KEXEWuuAR4+JkkWBK7A +dVT4n1MM4wP/aCIyriSlq7kgT03Wxk4Q4wKsj2wZvDQkNgEQjrctgIihc75jqi5 126nmT3YXJLwgDpFA3RHZUWve3j3vfUG53rRuk7K9Xx1sGWU3Ls7BuInvQZ//+QS 6UB4UuEAalmose5U8ToXQfMqZhjwreZKeb64TEZwFvu2klv4cnka1L/zHbmQGgRg 2Pfv+aUrjsYE8s9lkEKX8MIQsDn28Q5Lsv7XIEQwo2at4rYbJaxX6usuC1OI0MQ5 BLUn1GgtvOidq6FzSg6kXiA/MJYH3J0S+p4uULWAprxA+KeJRbWNRroM94W1qAk= =1Wcq -----END PGP SIGNATURE----- Merge tag 'v3.13-rc3' into drm-intel-next-queued Linux 3.13-rc3 I need a backmerge for two reasons: - For merging the ppgtt patches from Ben I need to pull in the bdw support. - We now have duplicated calls to intel_uncore_forcewake_reset in the setup code to due 2 different patches merged into -next and 3.13. The conflict is silen so I need the merge to be able to apply Deepak's fixup patch. Conflicts: drivers/gpu/drm/i915/intel_display.c Trivial conflict, it doesn't even show up in the merge diff. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
906 lines
26 KiB
C
906 lines
26 KiB
C
/*
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* Copyright 2008 Intel Corporation <hong.liu@intel.com>
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* Copyright 2008 Red Hat <mjg@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NON-INFRINGEMENT. IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/acpi.h>
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#include <linux/acpi_io.h>
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#include <acpi/video.h>
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#include <drm/drmP.h>
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#include <drm/i915_drm.h>
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#include "i915_drv.h"
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#include "intel_drv.h"
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#define PCI_ASLE 0xe4
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#define PCI_ASLS 0xfc
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#define PCI_SWSCI 0xe8
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#define PCI_SWSCI_SCISEL (1 << 15)
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#define PCI_SWSCI_GSSCIE (1 << 0)
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#define OPREGION_HEADER_OFFSET 0
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#define OPREGION_ACPI_OFFSET 0x100
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#define ACPI_CLID 0x01ac /* current lid state indicator */
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#define ACPI_CDCK 0x01b0 /* current docking state indicator */
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#define OPREGION_SWSCI_OFFSET 0x200
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#define OPREGION_ASLE_OFFSET 0x300
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#define OPREGION_VBT_OFFSET 0x400
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#define OPREGION_SIGNATURE "IntelGraphicsMem"
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#define MBOX_ACPI (1<<0)
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#define MBOX_SWSCI (1<<1)
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#define MBOX_ASLE (1<<2)
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struct opregion_header {
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u8 signature[16];
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u32 size;
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u32 opregion_ver;
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u8 bios_ver[32];
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u8 vbios_ver[16];
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u8 driver_ver[16];
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u32 mboxes;
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u8 reserved[164];
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} __packed;
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/* OpRegion mailbox #1: public ACPI methods */
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struct opregion_acpi {
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u32 drdy; /* driver readiness */
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u32 csts; /* notification status */
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u32 cevt; /* current event */
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u8 rsvd1[20];
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u32 didl[8]; /* supported display devices ID list */
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u32 cpdl[8]; /* currently presented display list */
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u32 cadl[8]; /* currently active display list */
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u32 nadl[8]; /* next active devices list */
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u32 aslp; /* ASL sleep time-out */
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u32 tidx; /* toggle table index */
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u32 chpd; /* current hotplug enable indicator */
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u32 clid; /* current lid state*/
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u32 cdck; /* current docking state */
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u32 sxsw; /* Sx state resume */
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u32 evts; /* ASL supported events */
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u32 cnot; /* current OS notification */
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u32 nrdy; /* driver status */
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u8 rsvd2[60];
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} __packed;
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/* OpRegion mailbox #2: SWSCI */
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struct opregion_swsci {
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u32 scic; /* SWSCI command|status|data */
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u32 parm; /* command parameters */
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u32 dslp; /* driver sleep time-out */
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u8 rsvd[244];
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} __packed;
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/* OpRegion mailbox #3: ASLE */
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struct opregion_asle {
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u32 ardy; /* driver readiness */
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u32 aslc; /* ASLE interrupt command */
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u32 tche; /* technology enabled indicator */
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u32 alsi; /* current ALS illuminance reading */
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u32 bclp; /* backlight brightness to set */
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u32 pfit; /* panel fitting state */
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u32 cblv; /* current brightness level */
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u16 bclm[20]; /* backlight level duty cycle mapping table */
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u32 cpfm; /* current panel fitting mode */
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u32 epfm; /* enabled panel fitting modes */
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u8 plut[74]; /* panel LUT and identifier */
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u32 pfmb; /* PWM freq and min brightness */
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u32 cddv; /* color correction default values */
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u32 pcft; /* power conservation features */
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u32 srot; /* supported rotation angles */
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u32 iuer; /* IUER events */
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u8 rsvd[86];
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} __packed;
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/* Driver readiness indicator */
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#define ASLE_ARDY_READY (1 << 0)
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#define ASLE_ARDY_NOT_READY (0 << 0)
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/* ASLE Interrupt Command (ASLC) bits */
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#define ASLC_SET_ALS_ILLUM (1 << 0)
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#define ASLC_SET_BACKLIGHT (1 << 1)
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#define ASLC_SET_PFIT (1 << 2)
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#define ASLC_SET_PWM_FREQ (1 << 3)
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#define ASLC_SUPPORTED_ROTATION_ANGLES (1 << 4)
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#define ASLC_BUTTON_ARRAY (1 << 5)
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#define ASLC_CONVERTIBLE_INDICATOR (1 << 6)
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#define ASLC_DOCKING_INDICATOR (1 << 7)
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#define ASLC_ISCT_STATE_CHANGE (1 << 8)
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#define ASLC_REQ_MSK 0x1ff
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/* response bits */
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#define ASLC_ALS_ILLUM_FAILED (1 << 10)
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#define ASLC_BACKLIGHT_FAILED (1 << 12)
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#define ASLC_PFIT_FAILED (1 << 14)
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#define ASLC_PWM_FREQ_FAILED (1 << 16)
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#define ASLC_ROTATION_ANGLES_FAILED (1 << 18)
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#define ASLC_BUTTON_ARRAY_FAILED (1 << 20)
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#define ASLC_CONVERTIBLE_FAILED (1 << 22)
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#define ASLC_DOCKING_FAILED (1 << 24)
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#define ASLC_ISCT_STATE_FAILED (1 << 26)
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/* Technology enabled indicator */
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#define ASLE_TCHE_ALS_EN (1 << 0)
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#define ASLE_TCHE_BLC_EN (1 << 1)
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#define ASLE_TCHE_PFIT_EN (1 << 2)
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#define ASLE_TCHE_PFMB_EN (1 << 3)
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/* ASLE backlight brightness to set */
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#define ASLE_BCLP_VALID (1<<31)
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#define ASLE_BCLP_MSK (~(1<<31))
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/* ASLE panel fitting request */
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#define ASLE_PFIT_VALID (1<<31)
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#define ASLE_PFIT_CENTER (1<<0)
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#define ASLE_PFIT_STRETCH_TEXT (1<<1)
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#define ASLE_PFIT_STRETCH_GFX (1<<2)
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/* PWM frequency and minimum brightness */
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#define ASLE_PFMB_BRIGHTNESS_MASK (0xff)
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#define ASLE_PFMB_BRIGHTNESS_VALID (1<<8)
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#define ASLE_PFMB_PWM_MASK (0x7ffffe00)
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#define ASLE_PFMB_PWM_VALID (1<<31)
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#define ASLE_CBLV_VALID (1<<31)
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/* IUER */
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#define ASLE_IUER_DOCKING (1 << 7)
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#define ASLE_IUER_CONVERTIBLE (1 << 6)
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#define ASLE_IUER_ROTATION_LOCK_BTN (1 << 4)
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#define ASLE_IUER_VOLUME_DOWN_BTN (1 << 3)
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#define ASLE_IUER_VOLUME_UP_BTN (1 << 2)
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#define ASLE_IUER_WINDOWS_BTN (1 << 1)
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#define ASLE_IUER_POWER_BTN (1 << 0)
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/* Software System Control Interrupt (SWSCI) */
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#define SWSCI_SCIC_INDICATOR (1 << 0)
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#define SWSCI_SCIC_MAIN_FUNCTION_SHIFT 1
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#define SWSCI_SCIC_MAIN_FUNCTION_MASK (0xf << 1)
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#define SWSCI_SCIC_SUB_FUNCTION_SHIFT 8
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#define SWSCI_SCIC_SUB_FUNCTION_MASK (0xff << 8)
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#define SWSCI_SCIC_EXIT_PARAMETER_SHIFT 8
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#define SWSCI_SCIC_EXIT_PARAMETER_MASK (0xff << 8)
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#define SWSCI_SCIC_EXIT_STATUS_SHIFT 5
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#define SWSCI_SCIC_EXIT_STATUS_MASK (7 << 5)
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#define SWSCI_SCIC_EXIT_STATUS_SUCCESS 1
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#define SWSCI_FUNCTION_CODE(main, sub) \
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((main) << SWSCI_SCIC_MAIN_FUNCTION_SHIFT | \
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(sub) << SWSCI_SCIC_SUB_FUNCTION_SHIFT)
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/* SWSCI: Get BIOS Data (GBDA) */
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#define SWSCI_GBDA 4
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#define SWSCI_GBDA_SUPPORTED_CALLS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 0)
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#define SWSCI_GBDA_REQUESTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 1)
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#define SWSCI_GBDA_BOOT_DISPLAY_PREF SWSCI_FUNCTION_CODE(SWSCI_GBDA, 4)
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#define SWSCI_GBDA_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 5)
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#define SWSCI_GBDA_TV_STANDARD SWSCI_FUNCTION_CODE(SWSCI_GBDA, 6)
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#define SWSCI_GBDA_INTERNAL_GRAPHICS SWSCI_FUNCTION_CODE(SWSCI_GBDA, 7)
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#define SWSCI_GBDA_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_GBDA, 10)
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/* SWSCI: System BIOS Callbacks (SBCB) */
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#define SWSCI_SBCB 6
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#define SWSCI_SBCB_SUPPORTED_CALLBACKS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 0)
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#define SWSCI_SBCB_INIT_COMPLETION SWSCI_FUNCTION_CODE(SWSCI_SBCB, 1)
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#define SWSCI_SBCB_PRE_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 3)
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#define SWSCI_SBCB_POST_HIRES_SET_MODE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 4)
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#define SWSCI_SBCB_DISPLAY_SWITCH SWSCI_FUNCTION_CODE(SWSCI_SBCB, 5)
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#define SWSCI_SBCB_SET_TV_FORMAT SWSCI_FUNCTION_CODE(SWSCI_SBCB, 6)
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#define SWSCI_SBCB_ADAPTER_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 7)
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#define SWSCI_SBCB_DISPLAY_POWER_STATE SWSCI_FUNCTION_CODE(SWSCI_SBCB, 8)
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#define SWSCI_SBCB_SET_BOOT_DISPLAY SWSCI_FUNCTION_CODE(SWSCI_SBCB, 9)
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#define SWSCI_SBCB_SET_PANEL_DETAILS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 10)
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#define SWSCI_SBCB_SET_INTERNAL_GFX SWSCI_FUNCTION_CODE(SWSCI_SBCB, 11)
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#define SWSCI_SBCB_POST_HIRES_TO_DOS_FS SWSCI_FUNCTION_CODE(SWSCI_SBCB, 16)
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#define SWSCI_SBCB_SUSPEND_RESUME SWSCI_FUNCTION_CODE(SWSCI_SBCB, 17)
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#define SWSCI_SBCB_SET_SPREAD_SPECTRUM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 18)
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#define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19)
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#define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21)
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#define ACPI_OTHER_OUTPUT (0<<8)
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#define ACPI_VGA_OUTPUT (1<<8)
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#define ACPI_TV_OUTPUT (2<<8)
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#define ACPI_DIGITAL_OUTPUT (3<<8)
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#define ACPI_LVDS_OUTPUT (4<<8)
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#ifdef CONFIG_ACPI
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static int swsci(struct drm_device *dev, u32 function, u32 parm, u32 *parm_out)
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{
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struct drm_i915_private *dev_priv = dev->dev_private;
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struct opregion_swsci __iomem *swsci = dev_priv->opregion.swsci;
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u32 main_function, sub_function, scic;
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u16 pci_swsci;
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u32 dslp;
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if (!swsci)
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return -ENODEV;
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main_function = (function & SWSCI_SCIC_MAIN_FUNCTION_MASK) >>
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SWSCI_SCIC_MAIN_FUNCTION_SHIFT;
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sub_function = (function & SWSCI_SCIC_SUB_FUNCTION_MASK) >>
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SWSCI_SCIC_SUB_FUNCTION_SHIFT;
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/* Check if we can call the function. See swsci_setup for details. */
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if (main_function == SWSCI_SBCB) {
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if ((dev_priv->opregion.swsci_sbcb_sub_functions &
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(1 << sub_function)) == 0)
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return -EINVAL;
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} else if (main_function == SWSCI_GBDA) {
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if ((dev_priv->opregion.swsci_gbda_sub_functions &
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(1 << sub_function)) == 0)
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return -EINVAL;
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}
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/* Driver sleep timeout in ms. */
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dslp = ioread32(&swsci->dslp);
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if (!dslp) {
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/* The spec says 2ms should be the default, but it's too small
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* for some machines. */
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dslp = 50;
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} else if (dslp > 500) {
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/* Hey bios, trust must be earned. */
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WARN_ONCE(1, "excessive driver sleep timeout (DSPL) %u\n", dslp);
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dslp = 500;
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}
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/* The spec tells us to do this, but we are the only user... */
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scic = ioread32(&swsci->scic);
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if (scic & SWSCI_SCIC_INDICATOR) {
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DRM_DEBUG_DRIVER("SWSCI request already in progress\n");
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return -EBUSY;
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}
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scic = function | SWSCI_SCIC_INDICATOR;
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iowrite32(parm, &swsci->parm);
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iowrite32(scic, &swsci->scic);
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/* Ensure SCI event is selected and event trigger is cleared. */
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pci_read_config_word(dev->pdev, PCI_SWSCI, &pci_swsci);
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if (!(pci_swsci & PCI_SWSCI_SCISEL) || (pci_swsci & PCI_SWSCI_GSSCIE)) {
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pci_swsci |= PCI_SWSCI_SCISEL;
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pci_swsci &= ~PCI_SWSCI_GSSCIE;
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pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci);
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}
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/* Use event trigger to tell bios to check the mail. */
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pci_swsci |= PCI_SWSCI_GSSCIE;
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pci_write_config_word(dev->pdev, PCI_SWSCI, pci_swsci);
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/* Poll for the result. */
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#define C (((scic = ioread32(&swsci->scic)) & SWSCI_SCIC_INDICATOR) == 0)
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if (wait_for(C, dslp)) {
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DRM_DEBUG_DRIVER("SWSCI request timed out\n");
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return -ETIMEDOUT;
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}
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scic = (scic & SWSCI_SCIC_EXIT_STATUS_MASK) >>
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SWSCI_SCIC_EXIT_STATUS_SHIFT;
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/* Note: scic == 0 is an error! */
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if (scic != SWSCI_SCIC_EXIT_STATUS_SUCCESS) {
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DRM_DEBUG_DRIVER("SWSCI request error %u\n", scic);
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return -EIO;
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}
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if (parm_out)
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*parm_out = ioread32(&swsci->parm);
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return 0;
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#undef C
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}
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#define DISPLAY_TYPE_CRT 0
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#define DISPLAY_TYPE_TV 1
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#define DISPLAY_TYPE_EXTERNAL_FLAT_PANEL 2
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#define DISPLAY_TYPE_INTERNAL_FLAT_PANEL 3
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int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
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bool enable)
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{
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struct drm_device *dev = intel_encoder->base.dev;
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u32 parm = 0;
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u32 type = 0;
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u32 port;
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/* don't care about old stuff for now */
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if (!HAS_DDI(dev))
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return 0;
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port = intel_ddi_get_encoder_port(intel_encoder);
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if (port == PORT_E) {
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port = 0;
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} else {
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parm |= 1 << port;
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port++;
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}
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if (!enable)
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parm |= 4 << 8;
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switch (intel_encoder->type) {
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case INTEL_OUTPUT_ANALOG:
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type = DISPLAY_TYPE_CRT;
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break;
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case INTEL_OUTPUT_UNKNOWN:
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case INTEL_OUTPUT_DISPLAYPORT:
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case INTEL_OUTPUT_HDMI:
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type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL;
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break;
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case INTEL_OUTPUT_EDP:
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type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL;
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break;
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default:
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WARN_ONCE(1, "unsupported intel_encoder type %d\n",
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intel_encoder->type);
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return -EINVAL;
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}
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parm |= type << (16 + port * 3);
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return swsci(dev, SWSCI_SBCB_DISPLAY_POWER_STATE, parm, NULL);
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}
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static const struct {
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pci_power_t pci_power_state;
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u32 parm;
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} power_state_map[] = {
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{ PCI_D0, 0x00 },
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{ PCI_D1, 0x01 },
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{ PCI_D2, 0x02 },
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{ PCI_D3hot, 0x04 },
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{ PCI_D3cold, 0x04 },
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};
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int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state)
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{
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int i;
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if (!HAS_DDI(dev))
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return 0;
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for (i = 0; i < ARRAY_SIZE(power_state_map); i++) {
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if (state == power_state_map[i].pci_power_state)
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return swsci(dev, SWSCI_SBCB_ADAPTER_POWER_STATE,
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power_state_map[i].parm, NULL);
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}
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return -EINVAL;
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}
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static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
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|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct drm_connector *connector;
|
|
struct intel_connector *intel_connector;
|
|
struct intel_panel *panel;
|
|
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(connector, &dev->mode_config.connector_list, head) {
|
|
intel_connector = to_intel_connector(connector);
|
|
panel = &intel_connector->panel;
|
|
if (panel->backlight.present)
|
|
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;
|
|
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;
|
|
}
|
|
|
|
#ifdef CONFIG_ACPI
|
|
INIT_WORK(&opregion->asle_work, asle_work);
|
|
#endif
|
|
|
|
base = acpi_os_ioremap(asls, OPREGION_SIZE);
|
|
if (!base)
|
|
return -ENOMEM;
|
|
|
|
memcpy_fromio(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;
|
|
swsci_setup(dev);
|
|
}
|
|
if (mboxes & MBOX_ASLE) {
|
|
DRM_DEBUG_DRIVER("ASLE supported\n");
|
|
opregion->asle = base + OPREGION_ASLE_OFFSET;
|
|
|
|
iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy);
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
iounmap(base);
|
|
return err;
|
|
}
|