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drivers/acpi/bus.c
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// SPDX-License-Identifier: GPL-2.0-or-later |
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/* * acpi_bus.c - ACPI Bus Driver ($Revision: 80 $) * * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> |
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*/ #include <linux/module.h> #include <linux/init.h> #include <linux/ioport.h> |
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#include <linux/kernel.h> |
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#include <linux/list.h> #include <linux/sched.h> #include <linux/pm.h> #include <linux/device.h> #include <linux/proc_fs.h> |
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#include <linux/acpi.h> |
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#include <linux/slab.h> |
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#include <linux/regulator/machine.h> |
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#include <linux/workqueue.h> #include <linux/reboot.h> #include <linux/delay.h> |
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#ifdef CONFIG_X86 #include <asm/mpspec.h> |
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#include <linux/dmi.h> |
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#endif |
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#include <linux/acpi_iort.h> |
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#include <linux/pci.h> |
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#include <acpi/apei.h> |
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#include <linux/suspend.h> |
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|
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#include "internal.h" |
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#define _COMPONENT ACPI_BUS_COMPONENT |
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ACPI_MODULE_NAME("bus"); |
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|
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struct acpi_device *acpi_root; struct proc_dir_entry *acpi_root_dir; |
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EXPORT_SYMBOL(acpi_root_dir); |
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#ifdef CONFIG_X86 |
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#ifdef CONFIG_ACPI_CUSTOM_DSDT static inline int set_copy_dsdt(const struct dmi_system_id *id) { return 0; } #else |
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static int set_copy_dsdt(const struct dmi_system_id *id) { printk(KERN_NOTICE "%s detected - " "force copy of DSDT to local memory ", id->ident); acpi_gbl_copy_dsdt_locally = 1; return 0; } |
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#endif |
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|
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static const struct dmi_system_id dsdt_dmi_table[] __initconst = { |
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/* |
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* Invoke DSDT corruption work-around on all Toshiba Satellite. |
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* https://bugzilla.kernel.org/show_bug.cgi?id=14679 */ { .callback = set_copy_dsdt, |
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.ident = "TOSHIBA Satellite", |
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.matches = { DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
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}, |
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}, {} |
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}; |
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#endif |
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|
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/* -------------------------------------------------------------------------- Device Management -------------------------------------------------------------------------- */ |
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acpi_status acpi_bus_get_status_handle(acpi_handle handle, unsigned long long *sta) |
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{ |
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acpi_status status; |
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|
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status = acpi_evaluate_integer(handle, "_STA", NULL, sta); if (ACPI_SUCCESS(status)) return AE_OK; |
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|
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if (status == AE_NOT_FOUND) { *sta = ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING; return AE_OK; |
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} |
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return status; } |
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EXPORT_SYMBOL_GPL(acpi_bus_get_status_handle); |
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|
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int acpi_bus_get_status(struct acpi_device *device) { acpi_status status; unsigned long long sta; |
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if (acpi_device_always_present(device)) { acpi_set_device_status(device, ACPI_STA_DEFAULT); return 0; } |
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/* Battery devices must have their deps met before calling _STA */ if (acpi_device_is_battery(device) && device->dep_unmet) { acpi_set_device_status(device, 0); return 0; } |
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status = acpi_bus_get_status_handle(device->handle, &sta); if (ACPI_FAILURE(status)) return -ENODEV; |
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acpi_set_device_status(device, sta); |
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if (device->status.functional && !device->status.present) { |
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]: " "functional but not present; ", |
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device->pnp.bus_id, (u32)sta)); |
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} |
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x] ", |
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device->pnp.bus_id, (u32)sta)); |
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return 0; |
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} |
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EXPORT_SYMBOL(acpi_bus_get_status); |
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|
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void acpi_bus_private_data_handler(acpi_handle handle, |
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void *context) |
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{ return; } EXPORT_SYMBOL(acpi_bus_private_data_handler); |
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int acpi_bus_attach_private_data(acpi_handle handle, void *data) { acpi_status status; status = acpi_attach_data(handle, acpi_bus_private_data_handler, data); if (ACPI_FAILURE(status)) { acpi_handle_debug(handle, "Error attaching device data "); return -ENODEV; } return 0; } EXPORT_SYMBOL_GPL(acpi_bus_attach_private_data); |
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int acpi_bus_get_private_data(acpi_handle handle, void **data) { |
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acpi_status status; |
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|
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if (!data) |
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return -EINVAL; status = acpi_get_data(handle, acpi_bus_private_data_handler, data); |
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if (ACPI_FAILURE(status)) { acpi_handle_debug(handle, "No context for object "); |
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return -ENODEV; } return 0; } |
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EXPORT_SYMBOL_GPL(acpi_bus_get_private_data); void acpi_bus_detach_private_data(acpi_handle handle) { acpi_detach_data(handle, acpi_bus_private_data_handler); } EXPORT_SYMBOL_GPL(acpi_bus_detach_private_data); |
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|
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static void acpi_print_osc_error(acpi_handle handle, |
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struct acpi_osc_context *context, char *error) |
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{ |
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int i; |
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acpi_handle_debug(handle, "(%s): %s ", context->uuid_str, error); pr_debug("_OSC request data:"); |
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for (i = 0; i < context->cap.length; i += sizeof(u32)) |
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pr_debug(" %x", *((u32 *)(context->cap.pointer + i))); pr_debug(" "); |
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} |
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acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) { acpi_status status; struct acpi_object_list input; union acpi_object in_params[4]; union acpi_object *out_obj; |
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guid_t guid; |
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u32 errors; |
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struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; |
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if (!context) return AE_ERROR; |
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if (guid_parse(context->uuid_str, &guid)) |
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return AE_ERROR; context->ret.length = ACPI_ALLOCATE_BUFFER; context->ret.pointer = NULL; /* Setting up input parameters */ input.count = 4; input.pointer = in_params; in_params[0].type = ACPI_TYPE_BUFFER; in_params[0].buffer.length = 16; |
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in_params[0].buffer.pointer = (u8 *)&guid; |
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in_params[1].type = ACPI_TYPE_INTEGER; in_params[1].integer.value = context->rev; in_params[2].type = ACPI_TYPE_INTEGER; in_params[2].integer.value = context->cap.length/sizeof(u32); in_params[3].type = ACPI_TYPE_BUFFER; in_params[3].buffer.length = context->cap.length; in_params[3].buffer.pointer = context->cap.pointer; |
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status = acpi_evaluate_object(handle, "_OSC", &input, &output); |
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if (ACPI_FAILURE(status)) return status; |
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if (!output.length) |
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return AE_NULL_OBJECT; |
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out_obj = output.pointer; if (out_obj->type != ACPI_TYPE_BUFFER || out_obj->buffer.length != context->cap.length) { |
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acpi_print_osc_error(handle, context, "_OSC evaluation returned wrong type"); status = AE_TYPE; goto out_kfree; } /* Need to ignore the bit0 in result code */ errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0); if (errors) { if (errors & OSC_REQUEST_ERROR) acpi_print_osc_error(handle, context, "_OSC request failed"); if (errors & OSC_INVALID_UUID_ERROR) acpi_print_osc_error(handle, context, "_OSC invalid UUID"); if (errors & OSC_INVALID_REVISION_ERROR) acpi_print_osc_error(handle, context, "_OSC invalid revision"); if (errors & OSC_CAPABILITIES_MASK_ERROR) { |
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if (((u32 *)context->cap.pointer)[OSC_QUERY_DWORD] |
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& OSC_QUERY_ENABLE) goto out_success; status = AE_SUPPORT; goto out_kfree; } status = AE_ERROR; goto out_kfree; } out_success: |
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context->ret.length = out_obj->buffer.length; |
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context->ret.pointer = kmemdup(out_obj->buffer.pointer, context->ret.length, GFP_KERNEL); |
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if (!context->ret.pointer) { status = AE_NO_MEMORY; goto out_kfree; } |
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status = AE_OK; |
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out_kfree: |
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kfree(output.pointer); if (status != AE_OK) context->ret.pointer = NULL; |
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return status; } EXPORT_SYMBOL(acpi_run_osc); |
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bool osc_sb_apei_support_acked; |
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/* * ACPI 6.0 Section 8.4.4.2 Idle State Coordination * OSPM supports platform coordinated low power idle(LPI) states */ bool osc_pc_lpi_support_confirmed; EXPORT_SYMBOL_GPL(osc_pc_lpi_support_confirmed); |
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static u8 sb_uuid_str[] = "0811B06E-4A27-44F9-8D60-3CBBC22E7B48"; static void acpi_bus_osc_support(void) { u32 capbuf[2]; struct acpi_osc_context context = { .uuid_str = sb_uuid_str, .rev = 1, .cap.length = 8, .cap.pointer = capbuf, }; acpi_handle handle; |
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capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE; capbuf[OSC_SUPPORT_DWORD] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */ |
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if (IS_ENABLED(CONFIG_ACPI_PROCESSOR_AGGREGATOR)) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT; if (IS_ENABLED(CONFIG_ACPI_PROCESSOR)) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT; |
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|
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capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT; |
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capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT; |
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|
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#ifdef CONFIG_X86 if (boot_cpu_has(X86_FEATURE_HWP)) { capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPC_SUPPORT; capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPCV2_SUPPORT; } #endif |
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if (IS_ENABLED(CONFIG_SCHED_MC_PRIO)) |
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capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPC_DIVERSE_HIGH_SUPPORT; |
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if (!ghes_disable) |
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capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT; |
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if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return; |
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if (ACPI_SUCCESS(acpi_run_osc(handle, &context))) { u32 *capbuf_ret = context.ret.pointer; |
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if (context.ret.length > OSC_SUPPORT_DWORD) { |
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osc_sb_apei_support_acked = |
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capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT; |
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osc_pc_lpi_support_confirmed = capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_PCLPI_SUPPORT; } |
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kfree(context.ret.pointer); |
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} /* do we need to check other returned cap? Sounds no */ |
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} |
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/* -------------------------------------------------------------------------- |
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Notification Handling -------------------------------------------------------------------------- */ |
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/** * acpi_bus_notify * --------------- * Callback for all 'system-level' device notifications (values 0x00-0x7F). */ |
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static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) |
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{ |
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struct acpi_device *adev; |
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struct acpi_driver *driver; |
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u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; |
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bool hotplug_event = false; |
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|
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switch (type) { |
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case ACPI_NOTIFY_BUS_CHECK: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_BUS_CHECK event "); |
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hotplug_event = true; |
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break; case ACPI_NOTIFY_DEVICE_CHECK: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK event "); |
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hotplug_event = true; |
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break; case ACPI_NOTIFY_DEVICE_WAKE: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_WAKE event "); |
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break; case ACPI_NOTIFY_EJECT_REQUEST: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event "); |
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hotplug_event = true; |
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break; case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: |
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acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK_LIGHT event "); |
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/* TBD: Exactly what does 'light' mean? */ break; case ACPI_NOTIFY_FREQUENCY_MISMATCH: |
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acpi_handle_err(handle, "Device cannot be configured due " "to a frequency mismatch "); |
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break; case ACPI_NOTIFY_BUS_MODE_MISMATCH: |
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acpi_handle_err(handle, "Device cannot be configured due " "to a bus mode mismatch "); |
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break; case ACPI_NOTIFY_POWER_FAULT: |
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acpi_handle_err(handle, "Device has suffered a power fault "); |
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break; default: |
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acpi_handle_debug(handle, "Unknown event type 0x%x ", type); break; |
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} |
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adev = acpi_bus_get_acpi_device(handle); if (!adev) goto err; |
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|
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driver = adev->driver; if (driver && driver->ops.notify && (driver->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS)) driver->ops.notify(adev, type); |
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if (!hotplug_event) { acpi_bus_put_acpi_device(adev); return; } if (ACPI_SUCCESS(acpi_hotplug_schedule(adev, type))) |
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return; |
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acpi_bus_put_acpi_device(adev); |
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err: |
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acpi_evaluate_ost(handle, type, ost_code, NULL); |
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} |
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static void acpi_device_notify(acpi_handle handle, u32 event, void *data) { struct acpi_device *device = data; device->driver->ops.notify(device, event); } static void acpi_device_notify_fixed(void *data) { struct acpi_device *device = data; /* Fixed hardware devices have no handles */ acpi_device_notify(NULL, ACPI_FIXED_HARDWARE_EVENT, device); } static u32 acpi_device_fixed_event(void *data) { acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_device_notify_fixed, data); return ACPI_INTERRUPT_HANDLED; } static int acpi_device_install_notify_handler(struct acpi_device *device) { acpi_status status; if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) status = acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, acpi_device_fixed_event, device); else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) status = acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, acpi_device_fixed_event, device); else status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, acpi_device_notify, device); if (ACPI_FAILURE(status)) return -EINVAL; return 0; } static void acpi_device_remove_notify_handler(struct acpi_device *device) { if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, acpi_device_fixed_event); else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, acpi_device_fixed_event); else acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, acpi_device_notify); } |
baa0c019b ACPI / bus: Suppo... |
464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 |
/* Handle events targeting \_SB device (at present only graceful shutdown) */ #define ACPI_SB_NOTIFY_SHUTDOWN_REQUEST 0x81 #define ACPI_SB_INDICATE_INTERVAL 10000 static void sb_notify_work(struct work_struct *dummy) { acpi_handle sb_handle; orderly_poweroff(true); /* * After initiating graceful shutdown, the ACPI spec requires OSPM * to evaluate _OST method once every 10seconds to indicate that * the shutdown is in progress */ acpi_get_handle(NULL, "\\_SB", &sb_handle); while (1) { pr_info("Graceful shutdown in progress. "); acpi_evaluate_ost(sb_handle, ACPI_OST_EC_OSPM_SHUTDOWN, ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS, NULL); msleep(ACPI_SB_INDICATE_INTERVAL); } } static void acpi_sb_notify(acpi_handle handle, u32 event, void *data) { static DECLARE_WORK(acpi_sb_work, sb_notify_work); if (event == ACPI_SB_NOTIFY_SHUTDOWN_REQUEST) { if (!work_busy(&acpi_sb_work)) schedule_work(&acpi_sb_work); } else pr_warn("event %x is not supported by \\_SB device ", event); } static int __init acpi_setup_sb_notify_handler(void) { acpi_handle sb_handle; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &sb_handle))) return -ENXIO; if (ACPI_FAILURE(acpi_install_notify_handler(sb_handle, ACPI_DEVICE_NOTIFY, acpi_sb_notify, NULL))) return -EINVAL; return 0; } |
1da177e4c Linux-2.6.12-rc2 |
515 |
/* -------------------------------------------------------------------------- |
68c6b148d ACPI / scan: Move... |
516 517 |
Device Matching -------------------------------------------------------------------------- */ |
3b95bd160 ACPI: introduce a... |
518 519 520 521 522 523 524 |
/** * acpi_get_first_physical_node - Get first physical node of an ACPI device * @adev: ACPI device in question * * Return: First physical node of ACPI device @adev */ struct device *acpi_get_first_physical_node(struct acpi_device *adev) |
e91a398c3 ACPI / bus: Move ... |
525 526 |
{ struct mutex *physical_node_lock = &adev->physical_node_lock; |
3b95bd160 ACPI: introduce a... |
527 |
struct device *phys_dev; |
e91a398c3 ACPI / bus: Move ... |
528 529 530 |
mutex_lock(physical_node_lock); if (list_empty(&adev->physical_node_list)) { |
3b95bd160 ACPI: introduce a... |
531 |
phys_dev = NULL; |
e91a398c3 ACPI / bus: Move ... |
532 533 534 535 536 |
} else { const struct acpi_device_physical_node *node; node = list_first_entry(&adev->physical_node_list, struct acpi_device_physical_node, node); |
3b95bd160 ACPI: introduce a... |
537 538 |
phys_dev = node->dev; |
e91a398c3 ACPI / bus: Move ... |
539 540 |
} mutex_unlock(physical_node_lock); |
3b95bd160 ACPI: introduce a... |
541 542 543 544 545 546 547 548 549 |
return phys_dev; } static struct acpi_device *acpi_primary_dev_companion(struct acpi_device *adev, const struct device *dev) { const struct device *phys_dev = acpi_get_first_physical_node(adev); return phys_dev && phys_dev == dev ? adev : NULL; |
e91a398c3 ACPI / bus: Move ... |
550 |
} |
3431e490b Merge branch 'acp... |
551 552 553 554 555 556 557 558 559 560 561 562 563 564 |
/** * acpi_device_is_first_physical_node - Is given dev first physical node * @adev: ACPI companion device * @dev: Physical device to check * * Function checks if given @dev is the first physical devices attached to * the ACPI companion device. This distinction is needed in some cases * where the same companion device is shared between many physical devices. * * Note that the caller have to provide valid @adev pointer. */ bool acpi_device_is_first_physical_node(struct acpi_device *adev, const struct device *dev) { |
e91a398c3 ACPI / bus: Move ... |
565 |
return !!acpi_primary_dev_companion(adev, dev); |
3431e490b Merge branch 'acp... |
566 |
} |
68c6b148d ACPI / scan: Move... |
567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 |
/* * acpi_companion_match() - Can we match via ACPI companion device * @dev: Device in question * * Check if the given device has an ACPI companion and if that companion has * a valid list of PNP IDs, and if the device is the first (primary) physical * device associated with it. Return the companion pointer if that's the case * or NULL otherwise. * * If multiple physical devices are attached to a single ACPI companion, we need * to be careful. The usage scenario for this kind of relationship is that all * of the physical devices in question use resources provided by the ACPI * companion. A typical case is an MFD device where all the sub-devices share * the parent's ACPI companion. In such cases we can only allow the primary * (first) physical device to be matched with the help of the companion's PNP * IDs. * * Additional physical devices sharing the ACPI companion can still use * resources available from it but they will be matched normally using functions * provided by their bus types (and analogously for their modalias). */ struct acpi_device *acpi_companion_match(const struct device *dev) { struct acpi_device *adev; |
68c6b148d ACPI / scan: Move... |
591 592 593 594 595 596 597 |
adev = ACPI_COMPANION(dev); if (!adev) return NULL; if (list_empty(&adev->pnp.ids)) return NULL; |
e91a398c3 ACPI / bus: Move ... |
598 |
return acpi_primary_dev_companion(adev, dev); |
68c6b148d ACPI / scan: Move... |
599 600 601 602 603 604 |
} /** * acpi_of_match_device - Match device object using the "compatible" property. * @adev: ACPI device object to match. * @of_match_table: List of device IDs to match against. |
4222f38ca ACPI / bus: Do no... |
605 |
* @of_id: OF ID if matched |
68c6b148d ACPI / scan: Move... |
606 607 608 609 610 611 |
* * If @dev has an ACPI companion which has ACPI_DT_NAMESPACE_HID in its list of * identifiers and a _DSD object with the "compatible" property, use that * property to match against the given list of identifiers. */ static bool acpi_of_match_device(struct acpi_device *adev, |
4222f38ca ACPI / bus: Do no... |
612 613 |
const struct of_device_id *of_match_table, const struct of_device_id **of_id) |
68c6b148d ACPI / scan: Move... |
614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 |
{ const union acpi_object *of_compatible, *obj; int i, nval; if (!adev) return false; of_compatible = adev->data.of_compatible; if (!of_match_table || !of_compatible) return false; if (of_compatible->type == ACPI_TYPE_PACKAGE) { nval = of_compatible->package.count; obj = of_compatible->package.elements; } else { /* Must be ACPI_TYPE_STRING. */ nval = 1; obj = of_compatible; } /* Now we can look for the driver DT compatible strings */ for (i = 0; i < nval; i++, obj++) { const struct of_device_id *id; for (id = of_match_table; id->compatible[0]; id++) |
4222f38ca ACPI / bus: Do no... |
637 638 639 |
if (!strcasecmp(obj->string.pointer, id->compatible)) { if (of_id) *of_id = id; |
68c6b148d ACPI / scan: Move... |
640 |
return true; |
4222f38ca ACPI / bus: Do no... |
641 |
} |
68c6b148d ACPI / scan: Move... |
642 643 644 645 |
} return false; } |
51ede5d96 ACPI / bus: Intro... |
646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 |
static bool acpi_of_modalias(struct acpi_device *adev, char *modalias, size_t len) { const union acpi_object *of_compatible; const union acpi_object *obj; const char *str, *chr; of_compatible = adev->data.of_compatible; if (!of_compatible) return false; if (of_compatible->type == ACPI_TYPE_PACKAGE) obj = of_compatible->package.elements; else /* Must be ACPI_TYPE_STRING. */ obj = of_compatible; str = obj->string.pointer; chr = strchr(str, ','); strlcpy(modalias, chr ? chr + 1 : str, len); return true; } /** * acpi_set_modalias - Set modalias using "compatible" property or supplied ID * @adev: ACPI device object to match * @default_id: ID string to use as default if no compatible string found * @modalias: Pointer to buffer that modalias value will be copied into * @len: Length of modalias buffer * * This is a counterpart of of_modalias_node() for struct acpi_device objects. * If there is a compatible string for @adev, it will be copied to @modalias * with the vendor prefix stripped; otherwise, @default_id will be used. */ void acpi_set_modalias(struct acpi_device *adev, const char *default_id, char *modalias, size_t len) { if (!acpi_of_modalias(adev, modalias, len)) strlcpy(modalias, default_id, len); } EXPORT_SYMBOL_GPL(acpi_set_modalias); |
68c6b148d ACPI / scan: Move... |
687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 |
static bool __acpi_match_device_cls(const struct acpi_device_id *id, struct acpi_hardware_id *hwid) { int i, msk, byte_shift; char buf[3]; if (!id->cls) return false; /* Apply class-code bitmask, before checking each class-code byte */ for (i = 1; i <= 3; i++) { byte_shift = 8 * (3 - i); msk = (id->cls_msk >> byte_shift) & 0xFF; if (!msk) continue; sprintf(buf, "%02x", (id->cls >> byte_shift) & msk); if (strncmp(buf, &hwid->id[(i - 1) * 2], 2)) return false; } return true; } |
4222f38ca ACPI / bus: Do no... |
709 710 711 712 713 |
static bool __acpi_match_device(struct acpi_device *device, const struct acpi_device_id *acpi_ids, const struct of_device_id *of_ids, const struct acpi_device_id **acpi_id, const struct of_device_id **of_id) |
68c6b148d ACPI / scan: Move... |
714 715 716 717 718 719 720 721 722 |
{ const struct acpi_device_id *id; struct acpi_hardware_id *hwid; /* * If the device is not present, it is unnecessary to load device * driver for it. */ if (!device || !device->status.present) |
4222f38ca ACPI / bus: Do no... |
723 |
return false; |
68c6b148d ACPI / scan: Move... |
724 725 726 |
list_for_each_entry(hwid, &device->pnp.ids, list) { /* First, check the ACPI/PNP IDs provided by the caller. */ |
4222f38ca ACPI / bus: Do no... |
727 728 729 730 731 732 733 |
if (acpi_ids) { for (id = acpi_ids; id->id[0] || id->cls; id++) { if (id->id[0] && !strcmp((char *)id->id, hwid->id)) goto out_acpi_match; if (id->cls && __acpi_match_device_cls(id, hwid)) goto out_acpi_match; } |
68c6b148d ACPI / scan: Move... |
734 735 736 737 738 |
} /* * Next, check ACPI_DT_NAMESPACE_HID and try to match the * "compatible" property if found. |
68c6b148d ACPI / scan: Move... |
739 |
*/ |
4222f38ca ACPI / bus: Do no... |
740 741 |
if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id)) return acpi_of_match_device(device, of_ids, of_id); |
68c6b148d ACPI / scan: Move... |
742 |
} |
4222f38ca ACPI / bus: Do no... |
743 744 745 746 747 748 |
return false; out_acpi_match: if (acpi_id) *acpi_id = id; return true; |
68c6b148d ACPI / scan: Move... |
749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 |
} /** * acpi_match_device - Match a struct device against a given list of ACPI IDs * @ids: Array of struct acpi_device_id object to match against. * @dev: The device structure to match. * * Check if @dev has a valid ACPI handle and if there is a struct acpi_device * object for that handle and use that object to match against a given list of * device IDs. * * Return a pointer to the first matching ID on success or %NULL on failure. */ const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, const struct device *dev) { |
4222f38ca ACPI / bus: Do no... |
765 766 767 768 |
const struct acpi_device_id *id = NULL; __acpi_match_device(acpi_companion_match(dev), ids, NULL, &id, NULL); return id; |
68c6b148d ACPI / scan: Move... |
769 770 |
} EXPORT_SYMBOL_GPL(acpi_match_device); |
886ca88be ACPI / bus: Respe... |
771 772 773 774 775 776 777 778 779 780 |
static const void *acpi_of_device_get_match_data(const struct device *dev) { struct acpi_device *adev = ACPI_COMPANION(dev); const struct of_device_id *match = NULL; if (!acpi_of_match_device(adev, dev->driver->of_match_table, &match)) return NULL; return match->data; } |
67dcc26d2 device property: ... |
781 |
const void *acpi_device_get_match_data(const struct device *dev) |
80212a162 ACPI / bus: Intro... |
782 783 |
{ const struct acpi_device_id *match; |
886ca88be ACPI / bus: Respe... |
784 785 |
if (!dev->driver->acpi_match_table) return acpi_of_device_get_match_data(dev); |
80212a162 ACPI / bus: Intro... |
786 787 788 |
match = acpi_match_device(dev->driver->acpi_match_table, dev); if (!match) return NULL; |
67dcc26d2 device property: ... |
789 |
return (const void *)match->driver_data; |
80212a162 ACPI / bus: Intro... |
790 |
} |
29d5325a1 ACPI / bus: Renam... |
791 |
EXPORT_SYMBOL_GPL(acpi_device_get_match_data); |
80212a162 ACPI / bus: Intro... |
792 |
|
68c6b148d ACPI / scan: Move... |
793 794 795 |
int acpi_match_device_ids(struct acpi_device *device, const struct acpi_device_id *ids) { |
4222f38ca ACPI / bus: Do no... |
796 |
return __acpi_match_device(device, ids, NULL, NULL, NULL) ? 0 : -ENOENT; |
68c6b148d ACPI / scan: Move... |
797 798 799 800 801 802 803 804 |
} EXPORT_SYMBOL(acpi_match_device_ids); bool acpi_driver_match_device(struct device *dev, const struct device_driver *drv) { if (!drv->acpi_match_table) return acpi_of_match_device(ACPI_COMPANION(dev), |
4222f38ca ACPI / bus: Do no... |
805 806 |
drv->of_match_table, NULL); |
68c6b148d ACPI / scan: Move... |
807 |
|
4222f38ca ACPI / bus: Do no... |
808 809 810 |
return __acpi_match_device(acpi_companion_match(dev), drv->acpi_match_table, drv->of_match_table, NULL, NULL); |
68c6b148d ACPI / scan: Move... |
811 812 813 814 |
} EXPORT_SYMBOL_GPL(acpi_driver_match_device); /* -------------------------------------------------------------------------- |
5894b0c46 ACPI / scan: Move... |
815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 |
ACPI Driver Management -------------------------------------------------------------------------- */ /** * acpi_bus_register_driver - register a driver with the ACPI bus * @driver: driver being registered * * Registers a driver with the ACPI bus. Searches the namespace for all * devices that match the driver's criteria and binds. Returns zero for * success or a negative error status for failure. */ int acpi_bus_register_driver(struct acpi_driver *driver) { int ret; if (acpi_disabled) return -ENODEV; driver->drv.name = driver->name; driver->drv.bus = &acpi_bus_type; driver->drv.owner = driver->owner; ret = driver_register(&driver->drv); return ret; } EXPORT_SYMBOL(acpi_bus_register_driver); /** * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus * @driver: driver to unregister * * Unregisters a driver with the ACPI bus. Searches the namespace for all * devices that match the driver's criteria and unbinds. */ void acpi_bus_unregister_driver(struct acpi_driver *driver) { driver_unregister(&driver->drv); } EXPORT_SYMBOL(acpi_bus_unregister_driver); /* -------------------------------------------------------------------------- ACPI Bus operations -------------------------------------------------------------------------- */ static int acpi_bus_match(struct device *dev, struct device_driver *drv) { struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = to_acpi_driver(drv); return acpi_dev->flags.match_driver && !acpi_match_device_ids(acpi_dev, acpi_drv->ids); } static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env) { return __acpi_device_uevent_modalias(to_acpi_device(dev), env); } static int acpi_device_probe(struct device *dev) { struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = to_acpi_driver(dev->driver); int ret; if (acpi_dev->handler && !acpi_is_pnp_device(acpi_dev)) return -EINVAL; if (!acpi_drv->ops.add) return -ENOSYS; ret = acpi_drv->ops.add(acpi_dev); if (ret) return ret; acpi_dev->driver = acpi_drv; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Driver [%s] successfully bound to device [%s] ", acpi_drv->name, acpi_dev->pnp.bus_id)); if (acpi_drv->ops.notify) { ret = acpi_device_install_notify_handler(acpi_dev); if (ret) { if (acpi_drv->ops.remove) acpi_drv->ops.remove(acpi_dev); acpi_dev->driver = NULL; acpi_dev->driver_data = NULL; return ret; } } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s] ", acpi_drv->name, acpi_dev->pnp.bus_id)); get_device(dev); return 0; } |
67fbd0a3a ACPI: bus: Fix a ... |
914 |
static int acpi_device_remove(struct device *dev) |
5894b0c46 ACPI / scan: Move... |
915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 |
{ struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = acpi_dev->driver; if (acpi_drv) { if (acpi_drv->ops.notify) acpi_device_remove_notify_handler(acpi_dev); if (acpi_drv->ops.remove) acpi_drv->ops.remove(acpi_dev); } acpi_dev->driver = NULL; acpi_dev->driver_data = NULL; put_device(dev); return 0; } struct bus_type acpi_bus_type = { .name = "acpi", .match = acpi_bus_match, .probe = acpi_device_probe, .remove = acpi_device_remove, .uevent = acpi_device_uevent, }; |
1da177e4c Linux-2.6.12-rc2 |
939 940 941 |
/* -------------------------------------------------------------------------- Initialization/Cleanup -------------------------------------------------------------------------- */ |
4be44fcd3 [ACPI] Lindent al... |
942 |
static int __init acpi_bus_init_irq(void) |
1da177e4c Linux-2.6.12-rc2 |
943 |
{ |
6a8c0af6e ACPI: Remove usel... |
944 |
acpi_status status; |
4be44fcd3 [ACPI] Lindent al... |
945 |
char *message = NULL; |
1da177e4c Linux-2.6.12-rc2 |
946 |
|
1da177e4c Linux-2.6.12-rc2 |
947 |
|
aafbcd165 ACPI: invoke acpi... |
948 |
/* |
1da177e4c Linux-2.6.12-rc2 |
949 950 951 952 953 954 955 956 957 958 959 960 961 962 |
* Let the system know what interrupt model we are using by * evaluating the \_PIC object, if exists. */ switch (acpi_irq_model) { case ACPI_IRQ_MODEL_PIC: message = "PIC"; break; case ACPI_IRQ_MODEL_IOAPIC: message = "IOAPIC"; break; case ACPI_IRQ_MODEL_IOSAPIC: message = "IOSAPIC"; break; |
fbe61ec71 ARM64 / ACPI: Int... |
963 964 965 |
case ACPI_IRQ_MODEL_GIC: message = "GIC"; break; |
3948ec940 ACPI: Altix: ACPI... |
966 967 968 |
case ACPI_IRQ_MODEL_PLATFORM: message = "platform specific model"; break; |
1da177e4c Linux-2.6.12-rc2 |
969 970 971 |
default: printk(KERN_WARNING PREFIX "Unknown interrupt routing model "); |
d550d98d3 ACPI: delete trac... |
972 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
973 974 975 976 |
} printk(KERN_INFO PREFIX "Using %s for interrupt routing ", message); |
0db982026 ACPI: introduce h... |
977 |
status = acpi_execute_simple_method(NULL, "\\_PIC", acpi_irq_model); |
1da177e4c Linux-2.6.12-rc2 |
978 |
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) { |
a6fc67202 ACPI: Enable ACPI... |
979 |
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC")); |
d550d98d3 ACPI: delete trac... |
980 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
981 |
} |
d550d98d3 ACPI: delete trac... |
982 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
983 |
} |
b064a8fa7 ACPI / init: Swit... |
984 985 986 987 988 989 990 991 992 993 |
/** * acpi_early_init - Initialize ACPICA and populate the ACPI namespace. * * The ACPI tables are accessible after this, but the handling of events has not * been initialized and the global lock is not available yet, so AML should not * be executed at this point. * * Doing this before switching the EFI runtime services to virtual mode allows * the EfiBootServices memory to be freed slightly earlier on boot. */ |
4be44fcd3 [ACPI] Lindent al... |
994 |
void __init acpi_early_init(void) |
1da177e4c Linux-2.6.12-rc2 |
995 |
{ |
6a8c0af6e ACPI: Remove usel... |
996 |
acpi_status status; |
1da177e4c Linux-2.6.12-rc2 |
997 998 |
if (acpi_disabled) |
d550d98d3 ACPI: delete trac... |
999 |
return; |
1da177e4c Linux-2.6.12-rc2 |
1000 |
|
61686124f [ACPI] ACPICA 200... |
1001 1002 |
printk(KERN_INFO PREFIX "Core revision %08x ", ACPI_CA_VERSION); |
1da177e4c Linux-2.6.12-rc2 |
1003 1004 1005 |
/* enable workarounds, unless strict ACPI spec. compliance */ if (!acpi_strict) acpi_gbl_enable_interpreter_slack = TRUE; |
8d3523fb3 ACPI / osl: Remov... |
1006 |
acpi_permanent_mmap = true; |
ad71860a1 ACPICA: minimal p... |
1007 |
|
5d128fbd8 ACPI / bus: Only ... |
1008 |
#ifdef CONFIG_X86 |
ae976358c Revert "ACPI / bu... |
1009 1010 |
/* * If the machine falls into the DMI check table, |
5d128fbd8 ACPI / bus: Only ... |
1011 1012 1013 1014 |
* DSDT will be copied to memory. * Note that calling dmi_check_system() here on other architectures * would not be OK because only x86 initializes dmi early enough. * Thankfully only x86 systems need such quirks for now. |
ae976358c Revert "ACPI / bu... |
1015 1016 |
*/ dmi_check_system(dsdt_dmi_table); |
5d128fbd8 ACPI / bus: Only ... |
1017 |
#endif |
aa2110cb1 ACPI: add boot op... |
1018 |
|
ad71860a1 ACPICA: minimal p... |
1019 1020 1021 1022 1023 1024 1025 |
status = acpi_reallocate_root_table(); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to reallocate ACPI tables "); goto error0; } |
1da177e4c Linux-2.6.12-rc2 |
1026 1027 |
status = acpi_initialize_subsystem(); if (ACPI_FAILURE(status)) { |
4be44fcd3 [ACPI] Lindent al... |
1028 1029 1030 |
printk(KERN_ERR PREFIX "Unable to initialize the ACPI Interpreter "); |
1da177e4c Linux-2.6.12-rc2 |
1031 1032 |
goto error0; } |
1da177e4c Linux-2.6.12-rc2 |
1033 1034 |
#ifdef CONFIG_X86 if (!acpi_ioapic) { |
1da177e4c Linux-2.6.12-rc2 |
1035 |
/* compatible (0) means level (3) */ |
5f3b1a8b6 ACPICA: Remove du... |
1036 1037 1038 1039 |
if (!(acpi_sci_flags & ACPI_MADT_TRIGGER_MASK)) { acpi_sci_flags &= ~ACPI_MADT_TRIGGER_MASK; acpi_sci_flags |= ACPI_MADT_TRIGGER_LEVEL; } |
1da177e4c Linux-2.6.12-rc2 |
1040 |
/* Set PIC-mode SCI trigger type */ |
cee324b14 ACPICA: use new A... |
1041 |
acpi_pic_sci_set_trigger(acpi_gbl_FADT.sci_interrupt, |
5f3b1a8b6 ACPICA: Remove du... |
1042 |
(acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2); |
1da177e4c Linux-2.6.12-rc2 |
1043 |
} else { |
1da177e4c Linux-2.6.12-rc2 |
1044 |
/* |
cee324b14 ACPICA: use new A... |
1045 |
* now that acpi_gbl_FADT is initialized, |
1da177e4c Linux-2.6.12-rc2 |
1046 1047 |
* update it with result from INT_SRC_OVR parsing */ |
cee324b14 ACPICA: use new A... |
1048 |
acpi_gbl_FADT.sci_interrupt = acpi_sci_override_gsi; |
1da177e4c Linux-2.6.12-rc2 |
1049 1050 |
} #endif |
b064a8fa7 ACPI / init: Swit... |
1051 1052 1053 1054 1055 1056 1057 1058 1059 |
return; error0: disable_acpi(); } /** * acpi_subsystem_init - Finalize the early initialization of ACPI. * |
3af03f77c ACPI / bus: Corre... |
1060 |
* Switch over the platform to the ACPI mode (if possible). |
b064a8fa7 ACPI / init: Swit... |
1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 |
* * Doing this too early is generally unsafe, but at the same time it needs to be * done before all things that really depend on ACPI. The right spot appears to * be before finalizing the EFI initialization. */ void __init acpi_subsystem_init(void) { acpi_status status; if (acpi_disabled) return; |
1da177e4c Linux-2.6.12-rc2 |
1072 |
|
4505a2015 ACPI: Drop ACPI_N... |
1073 |
status = acpi_enable_subsystem(~ACPI_NO_ACPI_ENABLE); |
1da177e4c Linux-2.6.12-rc2 |
1074 1075 1076 |
if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to enable ACPI "); |
b064a8fa7 ACPI / init: Swit... |
1077 1078 1079 1080 1081 1082 1083 1084 1085 |
disable_acpi(); } else { /* * If the system is using ACPI then we can be reasonably * confident that any regulators are managed by the firmware * so tell the regulator core it has everything it needs to * know. */ regulator_has_full_constraints(); |
1da177e4c Linux-2.6.12-rc2 |
1086 |
} |
1da177e4c Linux-2.6.12-rc2 |
1087 |
} |
68bdb6773 ACPI: add support... |
1088 1089 1090 1091 1092 1093 |
static acpi_status acpi_bus_table_handler(u32 event, void *table, void *context) { acpi_scan_table_handler(event, table, context); return acpi_sysfs_table_handler(event, table, context); } |
4be44fcd3 [ACPI] Lindent al... |
1094 |
static int __init acpi_bus_init(void) |
1da177e4c Linux-2.6.12-rc2 |
1095 |
{ |
6a8c0af6e ACPI: Remove usel... |
1096 1097 |
int result; acpi_status status; |
1da177e4c Linux-2.6.12-rc2 |
1098 |
|
176f9c180 ACPI: remove doub... |
1099 |
acpi_os_initialize1(); |
1da177e4c Linux-2.6.12-rc2 |
1100 |
|
d737f333b ACPI: probe ECDT ... |
1101 1102 1103 1104 1105 1106 |
status = acpi_load_tables(); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to load the System Description Tables "); goto error1; |
fe6cbea0f ACPI 2.0 / ECDT: ... |
1107 |
} |
b1c033082 ACPI: EC: Look fo... |
1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 |
/* * ACPI 2.0 requires the EC driver to be loaded and work before the EC * device is found in the namespace. * * This is accomplished by looking for the ECDT table and getting the EC * parameters out of that. * * Do that before calling acpi_initialize_objects() which may trigger EC * address space accesses. */ acpi_ec_ecdt_probe(); |
fe6cbea0f ACPI 2.0 / ECDT: ... |
1119 1120 1121 1122 1123 1124 1125 |
status = acpi_enable_subsystem(ACPI_NO_ACPI_ENABLE); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to start the ACPI Interpreter "); goto error1; } |
1da177e4c Linux-2.6.12-rc2 |
1126 1127 1128 1129 1130 1131 |
status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to initialize ACPI objects "); goto error1; } |
a21211672 ACPI / processor:... |
1132 1133 |
/* Set capability bits for _OSC under processor scope */ acpi_early_processor_osc(); |
b1d248d96 ACPI: install ACP... |
1134 |
/* |
fc54ab729 ACPI: run _OSC af... |
1135 1136 1137 1138 1139 1140 |
* _OSC method may exist in module level code, * so it must be run after ACPI_FULL_INITIALIZATION */ acpi_bus_osc_support(); /* |
b1d248d96 ACPI: install ACP... |
1141 1142 1143 |
* _PDC control method may load dynamic SSDT tables, * and we need to install the table handler before that. */ |
68bdb6773 ACPI: add support... |
1144 |
status = acpi_install_table_handler(acpi_bus_table_handler, NULL); |
b1d248d96 ACPI: install ACP... |
1145 |
acpi_sysfs_init(); |
78f169965 ACPI: processor: ... |
1146 |
acpi_early_processor_set_pdc(); |
455c8793d ACPI: Enable EC d... |
1147 1148 1149 1150 |
/* * Maybe EC region is required at bus_scan/acpi_get_devices. So it * is necessary to enable it as early as possible. */ |
dcf15cbde ACPI / EC: Fix a ... |
1151 |
acpi_ec_dsdt_probe(); |
455c8793d ACPI: Enable EC d... |
1152 |
|
1da177e4c Linux-2.6.12-rc2 |
1153 1154 |
printk(KERN_INFO PREFIX "Interpreter enabled "); |
aafbcd165 ACPI: invoke acpi... |
1155 1156 |
/* Initialize sleep structures */ acpi_sleep_init(); |
1da177e4c Linux-2.6.12-rc2 |
1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 |
/* * Get the system interrupt model and evaluate \_PIC. */ result = acpi_bus_init_irq(); if (result) goto error1; /* * Register the for all standard device notifications. */ |
4be44fcd3 [ACPI] Lindent al... |
1167 1168 1169 |
status = acpi_install_notify_handler(ACPI_ROOT_OBJECT, ACPI_SYSTEM_NOTIFY, &acpi_bus_notify, NULL); |
1da177e4c Linux-2.6.12-rc2 |
1170 |
if (ACPI_FAILURE(status)) { |
4be44fcd3 [ACPI] Lindent al... |
1171 1172 1173 |
printk(KERN_ERR PREFIX "Unable to register for device notifications "); |
1da177e4c Linux-2.6.12-rc2 |
1174 1175 1176 1177 1178 1179 1180 |
goto error1; } /* * Create the top ACPI proc directory */ acpi_root_dir = proc_mkdir(ACPI_BUS_FILE_ROOT, NULL); |
1dcc3d336 ACPI / bus: Move ... |
1181 1182 1183 |
result = bus_register(&acpi_bus_type); if (!result) return 0; |
1da177e4c Linux-2.6.12-rc2 |
1184 1185 |
/* Mimic structured exception handling */ |
4be44fcd3 [ACPI] Lindent al... |
1186 |
error1: |
1da177e4c Linux-2.6.12-rc2 |
1187 |
acpi_terminate(); |
d550d98d3 ACPI: delete trac... |
1188 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
1189 |
} |
99e0d2fc6 kobject: convert ... |
1190 |
struct kobject *acpi_kobj; |
f2d4753fb ACPI: export acpi... |
1191 |
EXPORT_SYMBOL_GPL(acpi_kobj); |
1da177e4c Linux-2.6.12-rc2 |
1192 |
|
4be44fcd3 [ACPI] Lindent al... |
1193 |
static int __init acpi_init(void) |
1da177e4c Linux-2.6.12-rc2 |
1194 |
{ |
6831c6edc PM: Drop pm_flags... |
1195 |
int result; |
1da177e4c Linux-2.6.12-rc2 |
1196 |
|
1da177e4c Linux-2.6.12-rc2 |
1197 1198 1199 |
if (acpi_disabled) { printk(KERN_INFO PREFIX "Interpreter disabled. "); |
d550d98d3 ACPI: delete trac... |
1200 |
return -ENODEV; |
1da177e4c Linux-2.6.12-rc2 |
1201 |
} |
f62ed9e33 firmware: change ... |
1202 |
acpi_kobj = kobject_create_and_add("acpi", firmware_kobj); |
99e0d2fc6 kobject: convert ... |
1203 |
if (!acpi_kobj) { |
96b2dd1f1 ACPI: replace rem... |
1204 1205 |
printk(KERN_WARNING "%s: kset create error ", __func__); |
99e0d2fc6 kobject: convert ... |
1206 1207 |
acpi_kobj = NULL; } |
1da177e4c Linux-2.6.12-rc2 |
1208 1209 |
result = acpi_bus_init(); |
6831c6edc PM: Drop pm_flags... |
1210 |
if (result) { |
1da177e4c Linux-2.6.12-rc2 |
1211 |
disable_acpi(); |
81d0273df ACPI: skip DMI po... |
1212 |
return result; |
6831c6edc PM: Drop pm_flags... |
1213 |
} |
81d0273df ACPI: skip DMI po... |
1214 |
|
6831c6edc PM: Drop pm_flags... |
1215 |
pci_mmcfg_late_init(); |
88ef16d88 ACPI: I/O Remappi... |
1216 |
acpi_iort_init(); |
e747f2749 ACPI: call acpi_s... |
1217 |
acpi_scan_init(); |
a5f820feb ACPI: call acpi_e... |
1218 |
acpi_ec_init(); |
a25ee9200 ACPI: introduce d... |
1219 |
acpi_debugfs_init(); |
9cee43e07 ACPI: call acpi_s... |
1220 |
acpi_sleep_proc_init(); |
201b8c655 ACPI: call acpi_w... |
1221 |
acpi_wakeup_device_init(); |
836d08301 ACPI / debugger: ... |
1222 |
acpi_debugger_init(); |
baa0c019b ACPI / bus: Suppo... |
1223 |
acpi_setup_sb_notify_handler(); |
6831c6edc PM: Drop pm_flags... |
1224 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
1225 1226 1227 |
} subsys_initcall(acpi_init); |