^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Module Name: evxfevnt - External Interfaces, ACPI event disable/enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2000 - 2020, Intel Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *****************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define EXPORT_ACPI_INTERFACES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <acpi/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "accommon.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "actables.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define _COMPONENT ACPI_EVENTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) ACPI_MODULE_NAME("evxfevnt")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #if (!ACPI_REDUCED_HARDWARE) /* Entire module */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * FUNCTION: acpi_enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * PARAMETERS: None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * DESCRIPTION: Transfers the system into ACPI mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) acpi_status acpi_enable(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) int retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) ACPI_FUNCTION_TRACE(acpi_enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* ACPI tables must be present */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) if (acpi_gbl_fadt_index == ACPI_INVALID_TABLE_INDEX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) return_ACPI_STATUS(AE_NO_ACPI_TABLES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /* If the Hardware Reduced flag is set, machine is always in acpi mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) if (acpi_gbl_reduced_hardware) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /* Check current mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) ACPI_DEBUG_PRINT((ACPI_DB_INIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) "System is already in ACPI mode\n"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /* Transition to ACPI mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) status = acpi_hw_set_mode(ACPI_SYS_MODE_ACPI);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) ACPI_ERROR((AE_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) "Could not transition to ACPI mode"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /* Sanity check that transition succeeded */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) for (retry = 0; retry < 30000; ++retry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (acpi_hw_get_mode() == ACPI_SYS_MODE_ACPI) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (retry != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) ACPI_WARNING((AE_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) "Platform took > %d00 usec to enter ACPI mode", retry));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) acpi_os_stall(100); /* 100 usec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) ACPI_ERROR((AE_INFO, "Hardware did not enter ACPI mode"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) ACPI_EXPORT_SYMBOL(acpi_enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * FUNCTION: acpi_disable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * PARAMETERS: None
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) acpi_status acpi_disable(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) acpi_status status = AE_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) ACPI_FUNCTION_TRACE(acpi_disable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /* If the Hardware Reduced flag is set, machine is always in acpi mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) if (acpi_gbl_reduced_hardware) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (acpi_hw_get_mode() == ACPI_SYS_MODE_LEGACY) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) ACPI_DEBUG_PRINT((ACPI_DB_INIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) "System is already in legacy (non-ACPI) mode\n"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /* Transition to LEGACY mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) status = acpi_hw_set_mode(ACPI_SYS_MODE_LEGACY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) ACPI_ERROR((AE_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) "Could not exit ACPI mode to legacy mode"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI mode disabled\n"));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) ACPI_EXPORT_SYMBOL(acpi_disable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * FUNCTION: acpi_enable_event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) * PARAMETERS: event - The fixed eventto be enabled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * flags - Reserved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * DESCRIPTION: Enable an ACPI event (fixed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) acpi_status acpi_enable_event(u32 event, u32 flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) acpi_status status = AE_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) u32 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) ACPI_FUNCTION_TRACE(acpi_enable_event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /* If Hardware Reduced flag is set, there are no fixed events */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) if (acpi_gbl_reduced_hardware) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) /* Decode the Fixed Event */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (event > ACPI_EVENT_MAX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return_ACPI_STATUS(AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * Enable the requested fixed event (by writing a one to the enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) * register bit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) acpi_write_bit_register(acpi_gbl_fixed_event_info[event].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) enable_register_id, ACPI_ENABLE_EVENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) /* Make sure that the hardware responded */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) acpi_read_bit_register(acpi_gbl_fixed_event_info[event].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) enable_register_id, &value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (value != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) ACPI_ERROR((AE_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) "Could not enable %s event",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) acpi_ut_get_event_name(event)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) ACPI_EXPORT_SYMBOL(acpi_enable_event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * FUNCTION: acpi_disable_event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * PARAMETERS: event - The fixed event to be disabled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * flags - Reserved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) * DESCRIPTION: Disable an ACPI event (fixed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) acpi_status acpi_disable_event(u32 event, u32 flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) acpi_status status = AE_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) u32 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) ACPI_FUNCTION_TRACE(acpi_disable_event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) /* If Hardware Reduced flag is set, there are no fixed events */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) if (acpi_gbl_reduced_hardware) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) /* Decode the Fixed Event */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) if (event > ACPI_EVENT_MAX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) return_ACPI_STATUS(AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * Disable the requested fixed event (by writing a zero to the enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * register bit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) acpi_write_bit_register(acpi_gbl_fixed_event_info[event].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) enable_register_id, ACPI_DISABLE_EVENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) acpi_read_bit_register(acpi_gbl_fixed_event_info[event].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) enable_register_id, &value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) if (value != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) ACPI_ERROR((AE_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) "Could not disable %s events",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) acpi_ut_get_event_name(event)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) return_ACPI_STATUS(AE_NO_HARDWARE_RESPONSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) ACPI_EXPORT_SYMBOL(acpi_disable_event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * FUNCTION: acpi_clear_event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) * PARAMETERS: event - The fixed event to be cleared
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) * DESCRIPTION: Clear an ACPI event (fixed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) acpi_status acpi_clear_event(u32 event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) acpi_status status = AE_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) ACPI_FUNCTION_TRACE(acpi_clear_event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) /* If Hardware Reduced flag is set, there are no fixed events */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) if (acpi_gbl_reduced_hardware) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) /* Decode the Fixed Event */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) if (event > ACPI_EVENT_MAX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) return_ACPI_STATUS(AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) * Clear the requested fixed event (By writing a one to the status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) * register bit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) acpi_write_bit_register(acpi_gbl_fixed_event_info[event].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) status_register_id, ACPI_CLEAR_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) ACPI_EXPORT_SYMBOL(acpi_clear_event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) /*******************************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * FUNCTION: acpi_get_event_status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * PARAMETERS: event - The fixed event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * event_status - Where the current status of the event will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * be returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * RETURN: Status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * DESCRIPTION: Obtains and returns the current status of the event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) ******************************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) acpi_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) acpi_event_status local_event_status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) u32 in_byte;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) ACPI_FUNCTION_TRACE(acpi_get_event_status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) if (!event_status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) return_ACPI_STATUS(AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) /* Decode the Fixed Event */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) if (event > ACPI_EVENT_MAX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) return_ACPI_STATUS(AE_BAD_PARAMETER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) /* Fixed event currently can be dispatched? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (acpi_gbl_fixed_event_handlers[event].handler) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) local_event_status |= ACPI_EVENT_FLAG_HAS_HANDLER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) /* Fixed event currently enabled? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) acpi_read_bit_register(acpi_gbl_fixed_event_info[event].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) enable_register_id, &in_byte);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) if (in_byte) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) local_event_status |=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) (ACPI_EVENT_FLAG_ENABLED | ACPI_EVENT_FLAG_ENABLE_SET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) /* Fixed event currently active? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) status =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) acpi_read_bit_register(acpi_gbl_fixed_event_info[event].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) status_register_id, &in_byte);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (ACPI_FAILURE(status)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) return_ACPI_STATUS(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (in_byte) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) local_event_status |= ACPI_EVENT_FLAG_STATUS_SET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) (*event_status) = local_event_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) return_ACPI_STATUS(AE_OK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) ACPI_EXPORT_SYMBOL(acpi_get_event_status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) #endif /* !ACPI_REDUCED_HARDWARE */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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