Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Linus Torvalds (pre-git) | 187 | 22.42% | 4 | 7.41% |
Andy Grover | 178 | 21.34% | 8 | 14.81% |
Len Brown | 100 | 11.99% | 8 | 14.81% |
Robert Moore | 100 | 11.99% | 15 | 27.78% |
Lin Ming | 88 | 10.55% | 2 | 3.70% |
Linus Torvalds | 81 | 9.71% | 3 | 5.56% |
Lv Zheng | 53 | 6.35% | 7 | 12.96% |
Rafael J. Wysocki | 41 | 4.92% | 3 | 5.56% |
Alexey Y. Starikovskiy | 2 | 0.24% | 1 | 1.85% |
Rui Zhang | 2 | 0.24% | 1 | 1.85% |
Erik Schmauss | 1 | 0.12% | 1 | 1.85% |
Patrick Mochel | 1 | 0.12% | 1 | 1.85% |
Total | 834 | 54 |
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 /****************************************************************************** * * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable * * Copyright (C) 2000 - 2022, Intel Corp. * *****************************************************************************/ #define EXPORT_ACPI_INTERFACES #include <acpi/acpi.h> #include "accommon.h" #include "actables.h" #define _COMPONENT ACPI_EVENTS ACPI_MODULE_NAME("evxfevnt") #if (!ACPI_REDUCED_HARDWARE) /* Entire module */ /******************************************************************************* * * FUNCTION: acpi_enable * * PARAMETERS: None * * RETURN: Status * * DESCRIPTION: Transfers the system into ACPI mode. * ******************************************************************************/ acpi_status acpi_enable(void) { acpi_status status; int retry; ACPI_FUNCTION_TRACE(acpi_enable); /* ACPI tables must be present */ if (acpi_gbl_fadt_index == ACPI_INVALID_TABLE_INDEX) { return_ACPI_STATUS(AE_NO_ACPI_TABLES); } /* If the Hardware Reduced flag is set, machine is always in acpi mode */ if (acpi_gbl_reduced_hardware) { return_ACPI_STATUS(AE_OK); } /* Check current mode */ if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { ACPI_DEBUG_PRINT((ACPI_DB_INIT, "System is already in ACPI mode\n")); return_ACPI_STATUS(AE_OK); } /* Transition to ACPI mode */ status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, "Could not transition to ACPI mode")); return_ACPI_STATUS(status); } /* Sanity check that transition succeeded */ for (retry = 0; retry < 30000; ++retry) { if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) { if (retry != 0) ACPI_WARNING((AE_INFO, "Platform took > %d00 usec to enter ACPI mode", retry)); return_ACPI_STATUS(AE_OK); } acpi_os_stall(100); /* 100 usec */ } ACPI_ERROR((AE_INFO, "Hardware did not enter ACPI mode")); return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); } ACPI_EXPORT_SYMBOL(acpi_enable) /******************************************************************************* * * FUNCTION: acpi_disable * * PARAMETERS: None * * RETURN: Status * * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode. * ******************************************************************************/ acpi_status acpi_disable(void) { acpi_status status = AE_OK; ACPI_FUNCTION_TRACE(acpi_disable); /* If the Hardware Reduced flag is set, machine is always in acpi mode */ if (acpi_gbl_reduced_hardware) { return_ACPI_STATUS(AE_OK); } if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) { ACPI_DEBUG_PRINT((ACPI_DB_INIT, "System is already in legacy (non-ACPI) mode\n")); } else { /* Transition to LEGACY mode */ status = acpi_hw_set_mode(ACPI_SYS_MODE_LEGACY); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, "Could not exit ACPI mode to legacy mode")); return_ACPI_STATUS(status); } ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI mode disabled\n")); } return_ACPI_STATUS(status); } ACPI_EXPORT_SYMBOL(acpi_disable) /******************************************************************************* * * FUNCTION: acpi_enable_event * * PARAMETERS: event - The fixed eventto be enabled * flags - Reserved * * RETURN: Status * * DESCRIPTION: Enable an ACPI event (fixed) * ******************************************************************************/ acpi_status acpi_enable_event(u32 event, u32 flags) { acpi_status status = AE_OK; u32 value; ACPI_FUNCTION_TRACE(acpi_enable_event); /* If Hardware Reduced flag is set, there are no fixed events */ if (acpi_gbl_reduced_hardware) { return_ACPI_STATUS(AE_OK); } /* Decode the Fixed Event */ if (event > ACPI_EVENT_MAX) { return_ACPI_STATUS(AE_BAD_PARAMETER); } /* * Enable the requested fixed event (by writing a one to the enable * register bit) */ status = acpi_write_bit_register(acpi_gbl_fixed_event_info[event]. enable_register_id, ACPI_ENABLE_EVENT); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } /* Make sure that the hardware responded */ status = acpi_read_bit_register(acpi_gbl_fixed_event_info[event]. enable_register_id, &value); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } if (value != 1) { ACPI_ERROR((AE_INFO, "Could not enable %s event", acpi_ut_get_event_name(event))); return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); } return_ACPI_STATUS(status); } ACPI_EXPORT_SYMBOL(acpi_enable_event) /******************************************************************************* * * FUNCTION: acpi_disable_event * * PARAMETERS: event - The fixed event to be disabled * flags - Reserved * * RETURN: Status * * DESCRIPTION: Disable an ACPI event (fixed) * ******************************************************************************/ acpi_status acpi_disable_event(u32 event, u32 flags) { acpi_status status = AE_OK; u32 value; ACPI_FUNCTION_TRACE(acpi_disable_event); /* If Hardware Reduced flag is set, there are no fixed events */ if (acpi_gbl_reduced_hardware) { return_ACPI_STATUS(AE_OK); } /* Decode the Fixed Event */ if (event > ACPI_EVENT_MAX) { return_ACPI_STATUS(AE_BAD_PARAMETER); } /* * Disable the requested fixed event (by writing a zero to the enable * register bit) */ status = acpi_write_bit_register(acpi_gbl_fixed_event_info[event]. enable_register_id, ACPI_DISABLE_EVENT); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } status = acpi_read_bit_register(acpi_gbl_fixed_event_info[event]. enable_register_id, &value); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } if (value != 0) { ACPI_ERROR((AE_INFO, "Could not disable %s events", acpi_ut_get_event_name(event))); return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE); } return_ACPI_STATUS(status); } ACPI_EXPORT_SYMBOL(acpi_disable_event) /******************************************************************************* * * FUNCTION: acpi_clear_event * * PARAMETERS: event - The fixed event to be cleared * * RETURN: Status * * DESCRIPTION: Clear an ACPI event (fixed) * ******************************************************************************/ acpi_status acpi_clear_event(u32 event) { acpi_status status = AE_OK; ACPI_FUNCTION_TRACE(acpi_clear_event); /* If Hardware Reduced flag is set, there are no fixed events */ if (acpi_gbl_reduced_hardware) { return_ACPI_STATUS(AE_OK); } /* Decode the Fixed Event */ if (event > ACPI_EVENT_MAX) { return_ACPI_STATUS(AE_BAD_PARAMETER); } /* * Clear the requested fixed event (By writing a one to the status * register bit) */ status = acpi_write_bit_register(acpi_gbl_fixed_event_info[event]. status_register_id, ACPI_CLEAR_STATUS); return_ACPI_STATUS(status); } ACPI_EXPORT_SYMBOL(acpi_clear_event) /******************************************************************************* * * FUNCTION: acpi_get_event_status * * PARAMETERS: event - The fixed event * event_status - Where the current status of the event will * be returned * * RETURN: Status * * DESCRIPTION: Obtains and returns the current status of the event * ******************************************************************************/ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status) { acpi_status status; acpi_event_status local_event_status = 0; u32 in_byte; ACPI_FUNCTION_TRACE(acpi_get_event_status); if (!event_status) { return_ACPI_STATUS(AE_BAD_PARAMETER); } /* Decode the Fixed Event */ if (event > ACPI_EVENT_MAX) { return_ACPI_STATUS(AE_BAD_PARAMETER); } /* Fixed event currently can be dispatched? */ if (acpi_gbl_fixed_event_handlers[event].handler) { local_event_status |= ACPI_EVENT_FLAG_HAS_HANDLER; } /* Fixed event currently enabled? */ status = acpi_read_bit_register(acpi_gbl_fixed_event_info[event]. enable_register_id, &in_byte); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } if (in_byte) { local_event_status |= (ACPI_EVENT_FLAG_ENABLED | ACPI_EVENT_FLAG_ENABLE_SET); } /* Fixed event currently active? */ status = acpi_read_bit_register(acpi_gbl_fixed_event_info[event]. status_register_id, &in_byte); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } if (in_byte) { local_event_status |= ACPI_EVENT_FLAG_STATUS_SET; } (*event_status) = local_event_status; return_ACPI_STATUS(AE_OK); } ACPI_EXPORT_SYMBOL(acpi_get_event_status) #endif /* !ACPI_REDUCED_HARDWARE */
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