[deliverable/linux.git] / drivers / gpu / drm / radeon / radeon_acpi.h

/*
 * Copyright 2012 Advanced Micro Devices, Inc.
 *
 * 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, sublicense,
 * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
 *
 */

#ifndef RADEON_ACPI_H
#define RADEON_ACPI_H

struct radeon_device;
struct acpi_bus_event;

int radeon_atif_handler(struct radeon_device *rdev,
		struct acpi_bus_event *event);

/* AMD hw uses four ACPI control methods:
 * 1. ATIF
 * ARG0: (ACPI_INTEGER) function code
 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
 * ATIF provides an entry point for the gfx driver to interact with the sbios.
 * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
 * notification. Which notification is used as indicated by the ATIF Control
 * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
 * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
 * to identify pending System BIOS requests and associated parameters. For
 * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
 * will perform display device detection and invoke ATIF Control Method
 * SELECT_ACTIVE_DISPLAYS.
 *
 * 2. ATPX
 * ARG0: (ACPI_INTEGER) function code
 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
 * ATPX methods are used on PowerXpress systems to handle mux switching and
 * discrete GPU power control.
 *
 * 3. ATRM
 * ARG0: (ACPI_INTEGER) offset of vbios rom data
 * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
 * OUTPUT: (ACPI_BUFFER) output buffer
 * ATRM provides an interfacess to access the discrete GPU vbios image on
 * PowerXpress systems with multiple GPUs.
 *
 * 4. ATCS
 * ARG0: (ACPI_INTEGER) function code
 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
 * ATCS provides an interface to AMD chipset specific functionality.
 *
 */
/* ATIF */
#define ATIF_FUNCTION_VERIFY_INTERFACE                             0x0
/* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - version
 * DWORD - supported notifications mask
 * DWORD - supported functions bit vector
 */
/* Notifications mask */
#       define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED               (1 << 0)
#       define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED        (1 << 1)
#       define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED         (1 << 2)
#       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED    (1 << 3)
#       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED   (1 << 4)
#       define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED          (1 << 5)
#       define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED                (1 << 6)
#       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED      (1 << 7)
#       define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED                   (1 << 8)
/* supported functions vector */
#       define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED               (1 << 0)
#       define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED            (1 << 1)
#       define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED              (1 << 2)
#       define ATIF_GET_LID_STATE_SUPPORTED                       (1 << 3)
#       define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED           (1 << 4)
#       define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED             (1 << 5)
#       define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED  (1 << 6)
#       define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED    (1 << 7)
#       define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED     (1 << 12)
#       define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED           (1 << 14)
#define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS                        0x1
/* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * DWORD - valid flags mask
 * DWORD - flags
 *
 * OR
 *
 * WORD  - structure size in bytes (includes size field)
 * DWORD - valid flags mask
 * DWORD - flags
 * BYTE  - notify command code
 *
 * flags
 * bits 1:0:
 * 0 - Notify(VGA, 0x81) is not used for notification
 * 1 - Notify(VGA, 0x81) is used for notification
 * 2 - Notify(VGA, n) is used for notification where
 * n (0xd0-0xd9) is specified in notify command code.
 * bit 2:
 * 1 - lid changes not reported though int10
 */
#define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS                     0x2
/* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * DWORD - pending sbios requests
 * BYTE  - panel expansion mode
 * BYTE  - thermal state: target gfx controller
 * BYTE  - thermal state: state id (0: exit state, non-0: state)
 * BYTE  - forced power state: target gfx controller
 * BYTE  - forced power state: state id
 * BYTE  - system power source
 * BYTE  - panel backlight level (0-255)
 */
/* pending sbios requests */
#       define ATIF_DISPLAY_SWITCH_REQUEST                         (1 << 0)
#       define ATIF_EXPANSION_MODE_CHANGE_REQUEST                  (1 << 1)
#       define ATIF_THERMAL_STATE_CHANGE_REQUEST                   (1 << 2)
#       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST              (1 << 3)
#       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST             (1 << 4)
#       define ATIF_DISPLAY_CONF_CHANGE_REQUEST                    (1 << 5)
#       define ATIF_PX_GFX_SWITCH_REQUEST                          (1 << 6)
#       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST                (1 << 7)
#       define ATIF_DGPU_DISPLAY_EVENT                             (1 << 8)
/* panel expansion mode */
#       define ATIF_PANEL_EXPANSION_DISABLE                        0
#       define ATIF_PANEL_EXPANSION_FULL                           1
#       define ATIF_PANEL_EXPANSION_ASPECT                         2
/* target gfx controller */
#       define ATIF_TARGET_GFX_SINGLE                              0
#       define ATIF_TARGET_GFX_PX_IGPU                             1
#       define ATIF_TARGET_GFX_PX_DGPU                             2
/* system power source */
#       define ATIF_POWER_SOURCE_AC                                1
#       define ATIF_POWER_SOURCE_DC                                2
#       define ATIF_POWER_SOURCE_RESTRICTED_AC_1                   3
#       define ATIF_POWER_SOURCE_RESTRICTED_AC_2                   4
#define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS                       0x3
/* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - selected displays
 * WORD  - connected displays
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - selected displays
 */
#       define ATIF_LCD1                                           (1 << 0)
#       define ATIF_CRT1                                           (1 << 1)
#       define ATIF_TV                                             (1 << 2)
#       define ATIF_DFP1                                           (1 << 3)
#       define ATIF_CRT2                                           (1 << 4)
#       define ATIF_LCD2                                           (1 << 5)
#       define ATIF_DFP2                                           (1 << 7)
#       define ATIF_CV                                             (1 << 8)
#       define ATIF_DFP3                                           (1 << 9)
#       define ATIF_DFP4                                           (1 << 10)
#       define ATIF_DFP5                                           (1 << 11)
#       define ATIF_DFP6                                           (1 << 12)
#define ATIF_FUNCTION_GET_LID_STATE                                0x4
/* ARG0: ATIF_FUNCTION_GET_LID_STATE
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * BYTE  - lid state (0: open, 1: closed)
 *
 * GET_LID_STATE only works at boot and resume, for general lid
 * status, use the kernel provided status
 */
#define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS                    0x5
/* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * BYTE  - 0
 * BYTE  - TV standard
 */
#       define ATIF_TV_STD_NTSC                                    0
#       define ATIF_TV_STD_PAL                                     1
#       define ATIF_TV_STD_PALM                                    2
#       define ATIF_TV_STD_PAL60                                   3
#       define ATIF_TV_STD_NTSCJ                                   4
#       define ATIF_TV_STD_PALCN                                   5
#       define ATIF_TV_STD_PALN                                    6
#       define ATIF_TV_STD_SCART_RGB                               9
#define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS                      0x6
/* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * BYTE  - 0
 * BYTE  - TV standard
 * OUTPUT: none
 */
#define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS           0x7
/* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * BYTE  - panel expansion mode
 */
#define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS             0x8
/* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * BYTE  - panel expansion mode
 * OUTPUT: none
 */
#define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION              0xD
/* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - gfx controller id
 * BYTE  - current temperature (degress Celsius)
 * OUTPUT: none
 */
#define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES                    0xF
/* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
 * ARG1: none
 * OUTPUT:
 * WORD  - number of gfx devices
 * WORD  - device structure size in bytes (excludes device size field)
 * DWORD - flags         \
 * WORD  - bus number     } repeated structure
 * WORD  - device number /
 */
/* flags */
#       define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE                   (1 << 0)
#       define ATIF_XGP_PORT                                       (1 << 1)
#       define ATIF_VGA_ENABLED_GRAPHICS_DEVICE                    (1 << 2)
#       define ATIF_XGP_PORT_IN_DOCK                               (1 << 3)

/* ATPX */
#define ATPX_FUNCTION_VERIFY_INTERFACE                             0x0
/* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - version
 * DWORD - supported functions bit vector
 */
/* supported functions vector */
#       define ATPX_GET_PX_PARAMETERS_SUPPORTED                    (1 << 0)
#       define ATPX_POWER_CONTROL_SUPPORTED                        (1 << 1)
#       define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED                  (1 << 2)
#       define ATPX_I2C_MUX_CONTROL_SUPPORTED                      (1 << 3)
#       define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
#       define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED   (1 << 5)
#       define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED       (1 << 7)
#       define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED          (1 << 8)
#define ATPX_FUNCTION_GET_PX_PARAMETERS                            0x1
/* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * DWORD - valid flags mask
 * DWORD - flags
 */
/* flags */
#       define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 0)
#       define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 1)
#       define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 2)
#       define ATPX_CRT1_RGB_SIGNAL_MUXED                          (1 << 3)
#       define ATPX_TV_SIGNAL_MUXED                                (1 << 4)
#       define ATPX_DFP_SIGNAL_MUXED                               (1 << 5)
#       define ATPX_SEPARATE_MUX_FOR_I2C                           (1 << 6)
#       define ATPX_DYNAMIC_PX_SUPPORTED                           (1 << 7)
#       define ATPX_ACF_NOT_SUPPORTED                              (1 << 8)
#       define ATPX_FIXED_NOT_SUPPORTED                            (1 << 9)
#       define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED               (1 << 10)
#       define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS                    (1 << 11)
#       define ATPX_DGPU_CAN_DRIVE_DISPLAYS                        (1 << 12)
#       define ATPX_MS_HYBRID_GFX_SUPPORTED                        (1 << 14)
#define ATPX_FUNCTION_POWER_CONTROL                                0x2
/* ARG0: ATPX_FUNCTION_POWER_CONTROL
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * BYTE  - dGPU power state (0: power off, 1: power on)
 * OUTPUT: none
 */
#define ATPX_FUNCTION_DISPLAY_MUX_CONTROL                          0x3
/* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - display mux control (0: iGPU, 1: dGPU)
 * OUTPUT: none
 */
#       define ATPX_INTEGRATED_GPU                                 0
#       define ATPX_DISCRETE_GPU                                   1
#define ATPX_FUNCTION_I2C_MUX_CONTROL                              0x4
/* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
 * OUTPUT: none
 */
#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION    0x5
/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - target gpu (0: iGPU, 1: dGPU)
 * OUTPUT: none
 */
#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION      0x6
/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - target gpu (0: iGPU, 1: dGPU)
 * OUTPUT: none
 */
#define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING               0x8
/* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
 * ARG1: none
 * OUTPUT:
 * WORD  - number of display connectors
 * WORD  - connector structure size in bytes (excludes connector size field)
 * BYTE  - flags                                                     \
 * BYTE  - ATIF display vector bit position                           } repeated
 * BYTE  - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
 * WORD  - connector ACPI id                                         /
 */
/* flags */
#       define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE  (1 << 0)
#       define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 1)
#       define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 2)
#define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS                  0x9
/* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
 * ARG1: none
 * OUTPUT:
 * WORD  - number of HPD/DDC ports
 * WORD  - port structure size in bytes (excludes port size field)
 * BYTE  - ATIF display vector bit position \
 * BYTE  - hpd id                            } reapeated structure
 * BYTE  - ddc id                           /
 *
 * available on A+A systems only
 */
/* hpd id */
#       define ATPX_HPD_NONE                                       0
#       define ATPX_HPD1                                           1
#       define ATPX_HPD2                                           2
#       define ATPX_HPD3                                           3
#       define ATPX_HPD4                                           4
#       define ATPX_HPD5                                           5
#       define ATPX_HPD6                                           6
/* ddc id */
#       define ATPX_DDC_NONE                                       0
#       define ATPX_DDC1                                           1
#       define ATPX_DDC2                                           2
#       define ATPX_DDC3                                           3
#       define ATPX_DDC4                                           4
#       define ATPX_DDC5                                           5
#       define ATPX_DDC6                                           6
#       define ATPX_DDC7                                           7
#       define ATPX_DDC8                                           8

/* ATCS */
#define ATCS_FUNCTION_VERIFY_INTERFACE                             0x0
/* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - version
 * DWORD - supported functions bit vector
 */
/* supported functions vector */
#       define ATCS_GET_EXTERNAL_STATE_SUPPORTED                   (1 << 0)
#       define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED             (1 << 1)
#       define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED       (1 << 2)
#       define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED                   (1 << 3)
#define ATCS_FUNCTION_GET_EXTERNAL_STATE                           0x1
/* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
 * ARG1: none
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * DWORD - valid flags mask
 * DWORD - flags (0: undocked, 1: docked)
 */
/* flags */
#       define ATCS_DOCKED                                         (1 << 0)
#define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST                     0x2
/* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
 * WORD  - valid flags mask
 * WORD  - flags
 * BYTE  - request type
 * BYTE  - performance request
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * BYTE  - return value
 */
/* flags */
#       define ATCS_ADVERTISE_CAPS                                 (1 << 0)
#       define ATCS_WAIT_FOR_COMPLETION                            (1 << 1)
/* request type */
#       define ATCS_PCIE_LINK_SPEED                                1
/* performance request */
#       define ATCS_REMOVE                                         0
#       define ATCS_FORCE_LOW_POWER                                1
#       define ATCS_PERF_LEVEL_1                                   2 /* PCIE Gen 1 */
#       define ATCS_PERF_LEVEL_2                                   3 /* PCIE Gen 2 */
#       define ATCS_PERF_LEVEL_3                                   4 /* PCIE Gen 3 */
/* return value */
#       define ATCS_REQUEST_REFUSED                                1
#       define ATCS_REQUEST_COMPLETE                               2
#       define ATCS_REQUEST_IN_PROGRESS                            3
#define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION               0x3
/* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
 * ARG1: none
 * OUTPUT: none
 */
#define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH                           0x4
/* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
 * ARG1:
 * WORD  - structure size in bytes (includes size field)
 * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
 * BYTE  - number of active lanes
 * OUTPUT:
 * WORD  - structure size in bytes (includes size field)
 * BYTE  - number of active lanes
 */

#endif
Commit	Line	Data
9e05b2f4 AD	1	/*
	2	* Copyright 2012 Advanced Micro Devices, Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	*/
	23
	24	#ifndef RADEON_ACPI_H
	25	#define RADEON_ACPI_H
	26
fda4b25c LT	27	struct radeon_device;
	28	struct acpi_bus_event;
	29
	30	int radeon_atif_handler(struct radeon_device *rdev,
	31	struct acpi_bus_event *event);
	32
9e05b2f4 AD	33	/* AMD hw uses four ACPI control methods:
	34	* 1. ATIF
	35	* ARG0: (ACPI_INTEGER) function code
	36	* ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
	37	* OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
	38	* ATIF provides an entry point for the gfx driver to interact with the sbios.
	39	* The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
	40	* notification. Which notification is used as indicated by the ATIF Control
	41	* Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
	42	* a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
	43	* to identify pending System BIOS requests and associated parameters. For
	44	* example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
	45	* will perform display device detection and invoke ATIF Control Method
	46	* SELECT_ACTIVE_DISPLAYS.
	47	*
	48	* 2. ATPX
	49	* ARG0: (ACPI_INTEGER) function code
	50	* ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
	51	* OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
	52	* ATPX methods are used on PowerXpress systems to handle mux switching and
	53	* discrete GPU power control.
	54	*
	55	* 3. ATRM
	56	* ARG0: (ACPI_INTEGER) offset of vbios rom data
	57	* ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
	58	* OUTPUT: (ACPI_BUFFER) output buffer
	59	* ATRM provides an interfacess to access the discrete GPU vbios image on
	60	* PowerXpress systems with multiple GPUs.
	61	*
	62	* 4. ATCS
	63	* ARG0: (ACPI_INTEGER) function code
	64	* ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
	65	* OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
	66	* ATCS provides an interface to AMD chipset specific functionality.
	67	*
	68	*/
	69	/* ATIF */
	70	#define ATIF_FUNCTION_VERIFY_INTERFACE 0x0
	71	/* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
	72	* ARG1: none
	73	* OUTPUT:
	74	* WORD - structure size in bytes (includes size field)
	75	* WORD - version
	76	* DWORD - supported notifications mask
	77	* DWORD - supported functions bit vector
	78	*/
	79	/* Notifications mask */
	80	# define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED (1 << 0)
	81	# define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED (1 << 1)
	82	# define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED (1 << 2)
	83	# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED (1 << 3)
	84	# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED (1 << 4)
	85	# define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED (1 << 5)
	86	# define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED (1 << 6)
	87	# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED (1 << 7)
	88	# define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED (1 << 8)
	89	/* supported functions vector */
	90	# define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED (1 << 0)
	91	# define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED (1 << 1)
	92	# define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED (1 << 2)
	93	# define ATIF_GET_LID_STATE_SUPPORTED (1 << 3)
	94	# define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED (1 << 4)
	95	# define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED (1 << 5)
	96	# define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED (1 << 6)
97	# define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7)
98	# define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12)
99	# define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14)
100	#define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1
101	/* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
102	* ARG1: none
103	* OUTPUT:
104	* WORD - structure size in bytes (includes size field)
105	* DWORD - valid flags mask
106	* DWORD - flags
107	*
108	* OR
109	*
110	* WORD - structure size in bytes (includes size field)
111	* DWORD - valid flags mask
112	* DWORD - flags
113	* BYTE - notify command code
114	*
115	* flags
116	* bits 1:0:
117	* 0 - Notify(VGA, 0x81) is not used for notification
118	* 1 - Notify(VGA, 0x81) is used for notification
119	* 2 - Notify(VGA, n) is used for notification where
120	* n (0xd0-0xd9) is specified in notify command code.
121	* bit 2:
122	* 1 - lid changes not reported though int10
123	*/
124	#define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 0x2
125	/* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
126	* ARG1: none
127	* OUTPUT:
128	* WORD - structure size in bytes (includes size field)
129	* DWORD - pending sbios requests
130	* BYTE - panel expansion mode
131	* BYTE - thermal state: target gfx controller
132	* BYTE - thermal state: state id (0: exit state, non-0: state)
133	* BYTE - forced power state: target gfx controller
134	* BYTE - forced power state: state id
135	* BYTE - system power source
136	* BYTE - panel backlight level (0-255)
137	*/
138	/* pending sbios requests */
139	# define ATIF_DISPLAY_SWITCH_REQUEST (1 << 0)
140	# define ATIF_EXPANSION_MODE_CHANGE_REQUEST (1 << 1)
141	# define ATIF_THERMAL_STATE_CHANGE_REQUEST (1 << 2)
142	# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST (1 << 3)
143	# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST (1 << 4)
144	# define ATIF_DISPLAY_CONF_CHANGE_REQUEST (1 << 5)
145	# define ATIF_PX_GFX_SWITCH_REQUEST (1 << 6)
146	# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7)
147	# define ATIF_DGPU_DISPLAY_EVENT (1 << 8)
148	/* panel expansion mode */
149	# define ATIF_PANEL_EXPANSION_DISABLE 0
150	# define ATIF_PANEL_EXPANSION_FULL 1
151	# define ATIF_PANEL_EXPANSION_ASPECT 2
152	/* target gfx controller */
153	# define ATIF_TARGET_GFX_SINGLE 0
154	# define ATIF_TARGET_GFX_PX_IGPU 1
155	# define ATIF_TARGET_GFX_PX_DGPU 2
156	/* system power source */
157	# define ATIF_POWER_SOURCE_AC 1
158	# define ATIF_POWER_SOURCE_DC 2
159	# define ATIF_POWER_SOURCE_RESTRICTED_AC_1 3
160	# define ATIF_POWER_SOURCE_RESTRICTED_AC_2 4
161	#define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS 0x3
162	/* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
163	* ARG1:
164	* WORD - structure size in bytes (includes size field)
165	* WORD - selected displays
166	* WORD - connected displays
167	* OUTPUT:
168	* WORD - structure size in bytes (includes size field)
169	* WORD - selected displays
170	*/
171	# define ATIF_LCD1 (1 << 0)
172	# define ATIF_CRT1 (1 << 1)
173	# define ATIF_TV (1 << 2)
174	# define ATIF_DFP1 (1 << 3)
175	# define ATIF_CRT2 (1 << 4)
176	# define ATIF_LCD2 (1 << 5)
177	# define ATIF_DFP2 (1 << 7)
178	# define ATIF_CV (1 << 8)
179	# define ATIF_DFP3 (1 << 9)
180	# define ATIF_DFP4 (1 << 10)
181	# define ATIF_DFP5 (1 << 11)
182	# define ATIF_DFP6 (1 << 12)
183	#define ATIF_FUNCTION_GET_LID_STATE 0x4
184	/* ARG0: ATIF_FUNCTION_GET_LID_STATE
185	* ARG1: none
186	* OUTPUT:
187	* WORD - structure size in bytes (includes size field)
188	* BYTE - lid state (0: open, 1: closed)
189	*
190	* GET_LID_STATE only works at boot and resume, for general lid
191	* status, use the kernel provided status
192	*/
193	#define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 0x5
194	/* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
195	* ARG1: none
196	* OUTPUT:
197	* WORD - structure size in bytes (includes size field)
198	* BYTE - 0
199	* BYTE - TV standard
200	*/
201	# define ATIF_TV_STD_NTSC 0
202	# define ATIF_TV_STD_PAL 1
203	# define ATIF_TV_STD_PALM 2
204	# define ATIF_TV_STD_PAL60 3
205	# define ATIF_TV_STD_NTSCJ 4
206	# define ATIF_TV_STD_PALCN 5
207	# define ATIF_TV_STD_PALN 6
208	# define ATIF_TV_STD_SCART_RGB 9
209	#define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 0x6
210	/* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
211	* ARG1:
212	* WORD - structure size in bytes (includes size field)
213	* BYTE - 0
214	* BYTE - TV standard
215	* OUTPUT: none
216	*/
217	#define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 0x7
218	/* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
219	* ARG1: none
220	* OUTPUT:
221	* WORD - structure size in bytes (includes size field)
222	* BYTE - panel expansion mode
223	*/
224	#define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 0x8
225	/* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
226	* ARG1:
227	* WORD - structure size in bytes (includes size field)
228	* BYTE - panel expansion mode
229	* OUTPUT: none
230	*/
231	#define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 0xD
232	/* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
233	* ARG1:
234	* WORD - structure size in bytes (includes size field)
235	* WORD - gfx controller id
236	* BYTE - current temperature (degress Celsius)
237	* OUTPUT: none
238	*/
239	#define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES 0xF
240	/* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
241	* ARG1: none
242	* OUTPUT:
243	* WORD - number of gfx devices
244	* WORD - device structure size in bytes (excludes device size field)
245	* DWORD - flags \
246	* WORD - bus number } repeated structure
247	* WORD - device number /
248	*/
249	/* flags */
250	# define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE (1 << 0)
251	# define ATIF_XGP_PORT (1 << 1)
252	# define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2)
253	# define ATIF_XGP_PORT_IN_DOCK (1 << 3)
254
255	/* ATPX */
256	#define ATPX_FUNCTION_VERIFY_INTERFACE 0x0
257	/* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
258	* ARG1: none
259	* OUTPUT:
260	* WORD - structure size in bytes (includes size field)
261	* WORD - version
262	* DWORD - supported functions bit vector
263	*/
264	/* supported functions vector */
265	# define ATPX_GET_PX_PARAMETERS_SUPPORTED (1 << 0)
266	# define ATPX_POWER_CONTROL_SUPPORTED (1 << 1)
267	# define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED (1 << 2)
268	# define ATPX_I2C_MUX_CONTROL_SUPPORTED (1 << 3)
269	# define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
270	# define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED (1 << 5)
271	# define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED (1 << 7)
272	# define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED (1 << 8)
273	#define ATPX_FUNCTION_GET_PX_PARAMETERS 0x1
274	/* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
275	* ARG1: none
276	* OUTPUT:
277	* WORD - structure size in bytes (includes size field)
278	* DWORD - valid flags mask
279	* DWORD - flags
280	*/
281	/* flags */
282	# define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 0)
283	# define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 1)
284	# define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 2)
285	# define ATPX_CRT1_RGB_SIGNAL_MUXED (1 << 3)
286	# define ATPX_TV_SIGNAL_MUXED (1 << 4)
287	# define ATPX_DFP_SIGNAL_MUXED (1 << 5)
288	# define ATPX_SEPARATE_MUX_FOR_I2C (1 << 6)
289	# define ATPX_DYNAMIC_PX_SUPPORTED (1 << 7)
290	# define ATPX_ACF_NOT_SUPPORTED (1 << 8)
291	# define ATPX_FIXED_NOT_SUPPORTED (1 << 9)
292	# define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED (1 << 10)
293	# define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS (1 << 11)
18aee16d AD	294	# define ATPX_DGPU_CAN_DRIVE_DISPLAYS (1 << 12)
18aee16d AD	295	# define ATPX_MS_HYBRID_GFX_SUPPORTED (1 << 14)
9e05b2f4 AD	296	#define ATPX_FUNCTION_POWER_CONTROL 0x2
	297	/* ARG0: ATPX_FUNCTION_POWER_CONTROL
	298	* ARG1:
	299	* WORD - structure size in bytes (includes size field)
	300	* BYTE - dGPU power state (0: power off, 1: power on)
	301	* OUTPUT: none
	302	*/
	303	#define ATPX_FUNCTION_DISPLAY_MUX_CONTROL 0x3
	304	/* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
	305	* ARG1:
	306	* WORD - structure size in bytes (includes size field)
	307	* WORD - display mux control (0: iGPU, 1: dGPU)
	308	* OUTPUT: none
	309	*/
	310	# define ATPX_INTEGRATED_GPU 0
	311	# define ATPX_DISCRETE_GPU 1
	312	#define ATPX_FUNCTION_I2C_MUX_CONTROL 0x4
	313	/* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
	314	* ARG1:
	315	* WORD - structure size in bytes (includes size field)
	316	* WORD - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
	317	* OUTPUT: none
	318	*/
	319	#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 0x5
	320	/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
	321	* ARG1:
	322	* WORD - structure size in bytes (includes size field)
	323	* WORD - target gpu (0: iGPU, 1: dGPU)
	324	* OUTPUT: none
	325	*/
	326	#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 0x6
	327	/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
	328	* ARG1:
	329	* WORD - structure size in bytes (includes size field)
	330	* WORD - target gpu (0: iGPU, 1: dGPU)
	331	* OUTPUT: none
	332	*/
	333	#define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING 0x8
	334	/* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
	335	* ARG1: none
	336	* OUTPUT:
	337	* WORD - number of display connectors
	338	* WORD - connector structure size in bytes (excludes connector size field)
	339	* BYTE - flags \
	340	* BYTE - ATIF display vector bit position } repeated
	341	* BYTE - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
	342	* WORD - connector ACPI id /
	343	*/
	344	/* flags */
	345	# define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 0)
	346	# define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 1)
	347	# define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 2)
	348	#define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 0x9
	349	/* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
	350	* ARG1: none
	351	* OUTPUT:
	352	* WORD - number of HPD/DDC ports
	353	* WORD - port structure size in bytes (excludes port size field)
	354	* BYTE - ATIF display vector bit position \
	355	* BYTE - hpd id } reapeated structure
	356	* BYTE - ddc id /
	357	*
	358	* available on A+A systems only
	359	*/
360	/* hpd id */
361	# define ATPX_HPD_NONE 0
362	# define ATPX_HPD1 1
363	# define ATPX_HPD2 2
364	# define ATPX_HPD3 3
365	# define ATPX_HPD4 4
366	# define ATPX_HPD5 5
367	# define ATPX_HPD6 6
368	/* ddc id */
369	# define ATPX_DDC_NONE 0
370	# define ATPX_DDC1 1
371	# define ATPX_DDC2 2
372	# define ATPX_DDC3 3
373	# define ATPX_DDC4 4
374	# define ATPX_DDC5 5
375	# define ATPX_DDC6 6
376	# define ATPX_DDC7 7
377	# define ATPX_DDC8 8
378
379	/* ATCS */
380	#define ATCS_FUNCTION_VERIFY_INTERFACE 0x0
381	/* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
382	* ARG1: none
383	* OUTPUT:
384	* WORD - structure size in bytes (includes size field)
385	* WORD - version
386	* DWORD - supported functions bit vector
387	*/
388	/* supported functions vector */
389	# define ATCS_GET_EXTERNAL_STATE_SUPPORTED (1 << 0)
390	# define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED (1 << 1)
391	# define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED (1 << 2)
392	# define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED (1 << 3)
393	#define ATCS_FUNCTION_GET_EXTERNAL_STATE 0x1
394	/* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
395	* ARG1: none
396	* OUTPUT:
397	* WORD - structure size in bytes (includes size field)
398	* DWORD - valid flags mask
399	* DWORD - flags (0: undocked, 1: docked)
400	*/
401	/* flags */
402	# define ATCS_DOCKED (1 << 0)
403	#define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 0x2
404	/* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
405	* ARG1:
406	* WORD - structure size in bytes (includes size field)
407	* WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
408	* WORD - valid flags mask
409	* WORD - flags
410	* BYTE - request type
411	* BYTE - performance request
412	* OUTPUT:
413	* WORD - structure size in bytes (includes size field)
414	* BYTE - return value
415	*/
416	/* flags */
417	# define ATCS_ADVERTISE_CAPS (1 << 0)
418	# define ATCS_WAIT_FOR_COMPLETION (1 << 1)
419	/* request type */
420	# define ATCS_PCIE_LINK_SPEED 1
421	/* performance request */
422	# define ATCS_REMOVE 0
423	# define ATCS_FORCE_LOW_POWER 1
424	# define ATCS_PERF_LEVEL_1 2 /* PCIE Gen 1 */
425	# define ATCS_PERF_LEVEL_2 3 /* PCIE Gen 2 */
426	# define ATCS_PERF_LEVEL_3 4 /* PCIE Gen 3 */
427	/* return value */
428	# define ATCS_REQUEST_REFUSED 1
429	# define ATCS_REQUEST_COMPLETE 2
430	# define ATCS_REQUEST_IN_PROGRESS 3
431	#define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 0x3
432	/* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
433	* ARG1: none
434	* OUTPUT: none
435	*/
436	#define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 0x4
437	/* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
438	* ARG1:
439	* WORD - structure size in bytes (includes size field)
440	* WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
441	* BYTE - number of active lanes
442	* OUTPUT:
443	* WORD - structure size in bytes (includes size field)
444	* BYTE - number of active lanes
445	*/
446
447	#endif