| /* |
| * 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 AMDGPU_ACPI_H |
| #define AMDGPU_ACPI_H |
| |
| struct amdgpu_device; |
| struct acpi_bus_event; |
| |
| int amdgpu_atif_handler(struct amdgpu_device *adev, |
| 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_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 |
