diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-04 02:59:39 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-04 02:59:39 +0400 |
| commit | 40031da445fb4d269af9c7c445b2adf674f171e7 (patch) | |
| tree | 021df7906708e939dee9978669a5461b12ff1296 /drivers/acpi | |
| parent | dcaaaeac871ff73043c616db3b2f91482637801d (diff) | |
| parent | f41b83126cba53849dd2353476a7715613af648f (diff) | |
| download | linux-40031da445fb4d269af9c7c445b2adf674f171e7.tar.xz | |
Merge tag 'pm+acpi-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
1) ACPI-based PCI hotplug (ACPIPHP) subsystem rework and introduction
of Intel Thunderbolt support on systems that use ACPI for signalling
Thunderbolt hotplug events. This also should make ACPIPHP work in
some cases in which it was known to have problems. From
Rafael J Wysocki, Mika Westerberg and Kirill A Shutemov.
2) ACPI core code cleanups and dock station support cleanups from
Jiang Liu and Rafael J Wysocki.
3) Fixes for locking problems related to ACPI device hotplug from
Rafael J Wysocki.
4) ACPICA update to version 20130725 includig fixes, cleanups, support
for more than 256 GPEs per GPE block and a change to make the ACPI
PM Timer optional (we've seen systems without the PM Timer in the
field already). One of the fixes, related to the DeRefOf operator,
is necessary to prevent some Windows 8 oriented AML from causing
problems to happen. From Bob Moore, Lv Zheng, and Jung-uk Kim.
5) Removal of the old and long deprecated /proc/acpi/event interface
and related driver changes from Thomas Renninger.
6) ACPI and Xen changes to make the reduced hardware sleep work with
the latter from Ben Guthro.
7) ACPI video driver cleanups and a blacklist of systems that should
not tell the BIOS that they are compatible with Windows 8 (or ACPI
backlight and possibly other things will not work on them). From
Felipe Contreras.
8) Assorted ACPI fixes and cleanups from Aaron Lu, Hanjun Guo,
Kuppuswamy Sathyanarayanan, Lan Tianyu, Sachin Kamat, Tang Chen,
Toshi Kani, and Wei Yongjun.
9) cpufreq ondemand governor target frequency selection change to
reduce oscillations between min and max frequencies (essentially,
it causes the governor to choose target frequencies proportional
to load) from Stratos Karafotis.
10) cpufreq fixes allowing sysfs attributes file permissions to be
preserved over suspend/resume cycles Srivatsa S Bhat.
11) Removal of Device Tree parsing for CPU device nodes from multiple
cpufreq drivers that required some changes related to
of_get_cpu_node() to be made in a few architectures and in the
driver core. From Sudeep KarkadaNagesha.
12) cpufreq core fixes and cleanups related to mutual exclusion and
driver module references from Viresh Kumar, Lukasz Majewski and
Rafael J Wysocki.
13) Assorted cpufreq fixes and cleanups from Amit Daniel Kachhap,
Bartlomiej Zolnierkiewicz, Hanjun Guo, Jingoo Han, Joseph Lo,
Julia Lawall, Li Zhong, Mark Brown, Sascha Hauer, Stephen Boyd,
Stratos Karafotis, and Viresh Kumar.
14) Fixes to prevent race conditions in coupled cpuidle from happening
from Colin Cross.
15) cpuidle core fixes and cleanups from Daniel Lezcano and
Tuukka Tikkanen.
16) Assorted cpuidle fixes and cleanups from Daniel Lezcano,
Geert Uytterhoeven, Jingoo Han, Julia Lawall, Linus Walleij,
and Sahara.
17) System sleep tracing changes from Todd E Brandt and Shuah Khan.
18) PNP subsystem conversion to using struct dev_pm_ops for power
management from Shuah Khan.
* tag 'pm+acpi-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (217 commits)
cpufreq: Don't use smp_processor_id() in preemptible context
cpuidle: coupled: fix race condition between pokes and safe state
cpuidle: coupled: abort idle if pokes are pending
cpuidle: coupled: disable interrupts after entering safe state
ACPI / hotplug: Remove containers synchronously
driver core / ACPI: Avoid device hot remove locking issues
cpufreq: governor: Fix typos in comments
cpufreq: governors: Remove duplicate check of target freq in supported range
cpufreq: Fix timer/workqueue corruption due to double queueing
ACPI / EC: Add ASUSTEK L4R to quirk list in order to validate ECDT
ACPI / thermal: Add check of "_TZD" availability and evaluating result
cpufreq: imx6q: Fix clock enable balance
ACPI: blacklist win8 OSI for buggy laptops
cpufreq: tegra: fix the wrong clock name
cpuidle: Change struct menu_device field types
cpuidle: Add a comment warning about possible overflow
cpuidle: Fix variable domains in get_typical_interval()
cpuidle: Fix menu_device->intervals type
cpuidle: CodingStyle: Break up multiple assignments on single line
cpuidle: Check called function parameter in get_typical_interval()
...
Diffstat (limited to 'drivers/acpi')
53 files changed, 920 insertions, 1179 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 100bd724f648..3278a210c435 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -91,24 +91,6 @@ config ACPI_EC_DEBUGFS Thus this option is a debug option that helps to write ACPI drivers and can be used to identify ACPI code or EC firmware bugs. -config ACPI_PROC_EVENT - bool "Deprecated /proc/acpi/event support" - depends on PROC_FS - default y - help - A user-space daemon, acpid, typically reads /proc/acpi/event - and handles all ACPI-generated events. - - These events are now delivered to user-space either - via the input layer or as netlink events. - - This build option enables the old code for legacy - user-space implementation. After some time, this will - be moved under CONFIG_ACPI_PROCFS, and then deleted. - - Say Y here to retain the old behaviour. Say N if your - user-space is newer than kernel 2.6.23 (September 2007). - config ACPI_AC tristate "AC Adapter" depends on X86 diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 4f4e741d34b2..f37beaa32750 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -267,7 +267,6 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event) msleep(ac_sleep_before_get_state_ms); acpi_ac_get_state(ac); - acpi_bus_generate_proc_event(device, event, (u32) ac->state); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, (u32) ac->state); diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index 27bb6a91de5f..6230637054c6 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -452,7 +452,6 @@ static void acpi_pad_notify(acpi_handle handle, u32 event, switch (event) { case ACPI_PROCESSOR_AGGREGATOR_NOTIFY: acpi_pad_handle_notify(handle); - acpi_bus_generate_proc_event(device, event, 0); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, 0); break; diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index fafec5ddf17f..1bde12708f9e 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -52,7 +52,7 @@ int acpi_create_platform_device(struct acpi_device *adev, struct platform_device_info pdevinfo; struct resource_list_entry *rentry; struct list_head resource_list; - struct resource *resources; + struct resource *resources = NULL; int count; /* If the ACPI node already has a physical device attached, skip it. */ @@ -61,20 +61,22 @@ int acpi_create_platform_device(struct acpi_device *adev, INIT_LIST_HEAD(&resource_list); count = acpi_dev_get_resources(adev, &resource_list, NULL, NULL); - if (count <= 0) + if (count < 0) { return 0; + } else if (count > 0) { + resources = kmalloc(count * sizeof(struct resource), + GFP_KERNEL); + if (!resources) { + dev_err(&adev->dev, "No memory for resources\n"); + acpi_dev_free_resource_list(&resource_list); + return -ENOMEM; + } + count = 0; + list_for_each_entry(rentry, &resource_list, node) + resources[count++] = rentry->res; - resources = kmalloc(count * sizeof(struct resource), GFP_KERNEL); - if (!resources) { - dev_err(&adev->dev, "No memory for resources\n"); acpi_dev_free_resource_list(&resource_list); - return -ENOMEM; } - count = 0; - list_for_each_entry(rentry, &resource_list, node) - resources[count++] = rentry->res; - - acpi_dev_free_resource_list(&resource_list); memset(&pdevinfo, 0, sizeof(pdevinfo)); /* diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 5a74a9c1e42c..f29e06efa479 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -178,14 +178,17 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_PRESENT)) return -ENODEV; + cpu_maps_update_begin(); + cpu_hotplug_begin(); + ret = acpi_map_lsapic(pr->handle, &pr->id); if (ret) - return ret; + goto out; ret = arch_register_cpu(pr->id); if (ret) { acpi_unmap_lsapic(pr->id); - return ret; + goto out; } /* @@ -195,7 +198,11 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) */ pr_info("CPU%d has been hot-added\n", pr->id); pr->flags.need_hotplug_init = 1; - return 0; + +out: + cpu_hotplug_done(); + cpu_maps_update_done(); + return ret; } #else static inline int acpi_processor_hotadd_init(struct acpi_processor *pr) @@ -452,11 +459,15 @@ static void acpi_processor_remove(struct acpi_device *device) per_cpu(processor_device_array, pr->id) = NULL; per_cpu(processors, pr->id) = NULL; + cpu_maps_update_begin(); + cpu_hotplug_begin(); + /* Remove the CPU. */ - get_online_cpus(); arch_unregister_cpu(pr->id); acpi_unmap_lsapic(pr->id); - put_online_cpus(); + + cpu_hotplug_done(); + cpu_maps_update_done(); try_offline_node(cpu_to_node(pr->id)); diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index b8d38117a20c..90e846f985fa 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -138,6 +138,12 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_auto_repair, FALSE); */ u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_ssdt_table_load, FALSE); +/* + * We keep track of the latest version of Windows that has been requested by + * the BIOS. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_osi_data, 0); + /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ struct acpi_table_fadt acpi_gbl_FADT; @@ -285,7 +291,6 @@ ACPI_EXTERN u8 acpi_gbl_debugger_configuration; ACPI_EXTERN u8 acpi_gbl_step_to_next_call; ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present; ACPI_EXTERN u8 acpi_gbl_events_initialized; -ACPI_EXTERN u8 acpi_gbl_osi_data; ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces; ACPI_EXTERN struct acpi_address_range *acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]; diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index d4a4901637cd..0ed00669cd21 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -942,6 +942,9 @@ struct acpi_interface_info { #define ACPI_OSI_INVALID 0x01 #define ACPI_OSI_DYNAMIC 0x02 +#define ACPI_OSI_FEATURE 0x04 +#define ACPI_OSI_DEFAULT_INVALID 0x08 +#define ACPI_OSI_OPTIONAL_FEATURE (ACPI_OSI_FEATURE | ACPI_OSI_DEFAULT_INVALID | ACPI_OSI_INVALID) struct acpi_port_info { char *name; @@ -1030,6 +1033,7 @@ struct acpi_external_list { u8 type; u8 flags; u8 resolved; + u8 emitted; }; /* Values for Flags field above */ diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index b83dc32a5ae0..40b04bd5579e 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -104,8 +104,8 @@ acpi_ns_walk_namespace(acpi_object_type type, acpi_handle start_object, u32 max_depth, u32 flags, - acpi_walk_callback pre_order_visit, - acpi_walk_callback post_order_visit, + acpi_walk_callback descending_callback, + acpi_walk_callback ascending_callback, void *context, void **return_value); struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h index 7755e915a007..c54f42c64fe2 100644 --- a/drivers/acpi/acpica/actables.h +++ b/drivers/acpi/acpica/actables.h @@ -47,6 +47,13 @@ acpi_status acpi_allocate_root_table(u32 initial_table_count); /* + * tbxfroot - Root pointer utilities + */ +acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp); + +u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length); + +/* * tbfadt - FADT parse/convert/validate */ void acpi_tb_parse_fadt(u32 table_index); diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 3c76edea6803..d5a62a6182bb 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -470,6 +470,8 @@ acpi_status acpi_ut_install_interface(acpi_string interface_name); acpi_status acpi_ut_remove_interface(acpi_string interface_name); +acpi_status acpi_ut_update_interfaces(u8 action); + struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name); acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state); @@ -616,7 +618,7 @@ int acpi_ut_stricmp(char *string1, char *string2); acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer); -void acpi_ut_print_string(char *string, u8 max_length); +void acpi_ut_print_string(char *string, u16 max_length); void ut_convert_backslashes(char *pathname); diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c index 9037f17c9608..7842700346a4 100644 --- a/drivers/acpi/acpica/evgpeinit.c +++ b/drivers/acpi/acpica/evgpeinit.c @@ -125,7 +125,6 @@ acpi_status acpi_ev_gpe_initialize(void) /* GPE block 0 exists (has both length and address > 0) */ register_count0 = (u16)(acpi_gbl_FADT.gpe0_block_length / 2); - gpe_number_max = (register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1; @@ -204,16 +203,6 @@ acpi_status acpi_ev_gpe_initialize(void) goto cleanup; } - /* Check for Max GPE number out-of-range */ - - if (gpe_number_max > ACPI_GPE_MAX) { - ACPI_ERROR((AE_INFO, - "Maximum GPE number from FADT is too large: 0x%X", - gpe_number_max)); - status = AE_BAD_VALUE; - goto cleanup; - } - cleanup: (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return_ACPI_STATUS(AE_OK); diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c index c740f24e3101..4d046faac48c 100644 --- a/drivers/acpi/acpica/exdump.c +++ b/drivers/acpi/acpica/exdump.c @@ -338,6 +338,7 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, { u8 *target; char *name; + const char *reference_name; u8 count; if (!info) { @@ -426,10 +427,9 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, case ACPI_EXD_REFERENCE: + reference_name = acpi_ut_get_reference_name(obj_desc); acpi_ex_out_string("Class Name", - ACPI_CAST_PTR(char, - acpi_ut_get_reference_name - (obj_desc))); + ACPI_CAST_PTR(char, reference_name)); acpi_ex_dump_reference_obj(obj_desc); break; diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c index 814b4a3d656a..2cdd41d8ade6 100644 --- a/drivers/acpi/acpica/exoparg1.c +++ b/drivers/acpi/acpica/exoparg1.c @@ -962,10 +962,17 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) */ return_desc = *(operand[0]->reference.where); - if (return_desc) { - acpi_ut_add_reference - (return_desc); + if (!return_desc) { + /* + * Element is NULL, do not allow the dereference. + * This provides compatibility with other ACPI + * implementations. + */ + return_ACPI_STATUS + (AE_AML_UNINITIALIZED_ELEMENT); } + + acpi_ut_add_reference(return_desc); break; default: @@ -990,11 +997,40 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) acpi_namespace_node *) return_desc); - } + if (!return_desc) { + break; + } - /* Add another reference to the object! */ + /* + * June 2013: + * buffer_fields/field_units require additional resolution + */ + switch (return_desc->common.type) { + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: - acpi_ut_add_reference(return_desc); + status = + acpi_ex_read_data_from_field + (walk_state, return_desc, + &temp_desc); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + return_desc = temp_desc; + break; + + default: + + /* Add another reference to the object */ + + acpi_ut_add_reference + (return_desc); + break; + } + } break; default: diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c index 5e5f76230f5e..414076818d40 100644 --- a/drivers/acpi/acpica/hwesleep.c +++ b/drivers/acpi/acpica/hwesleep.c @@ -43,6 +43,7 @@ */ #include <acpi/acpi.h> +#include <linux/acpi.h> #include "accommon.h" #define _COMPONENT ACPI_HARDWARE @@ -128,6 +129,14 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state) ACPI_FLUSH_CPU_CACHE(); + status = acpi_os_prepare_extended_sleep(sleep_state, + acpi_gbl_sleep_type_a, + acpi_gbl_sleep_type_b); + if (ACPI_SKIP(status)) + return_ACPI_STATUS(AE_OK); + if (ACPI_FAILURE(status)) + return_ACPI_STATUS(status); + /* * Set the SLP_TYP and SLP_EN bits. * diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c index 0c1a8bbd05d6..2d7d22ebc782 100644 --- a/drivers/acpi/acpica/hwtimer.c +++ b/drivers/acpi/acpica/hwtimer.c @@ -100,8 +100,13 @@ acpi_status acpi_get_timer(u32 * ticks) return_ACPI_STATUS(AE_BAD_PARAMETER); } - status = acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block); + /* ACPI 5.0A: PM Timer is optional */ + + if (!acpi_gbl_FADT.xpm_timer_block.address) { + return_ACPI_STATUS(AE_SUPPORT); + } + status = acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block); return_ACPI_STATUS(status); } @@ -148,6 +153,12 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed) return_ACPI_STATUS(AE_BAD_PARAMETER); } + /* ACPI 5.0A: PM Timer is optional */ + + if (!acpi_gbl_FADT.xpm_timer_block.address) { + return_ACPI_STATUS(AE_SUPPORT); + } + /* * Compute Tick Delta: * Handle (max one) timer rollovers on 24-bit versus 32-bit timers. diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c index 24b71a01bf93..098e7666cbc9 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c @@ -151,6 +151,15 @@ acpi_ns_check_return_value(struct acpi_namespace_node *node, } /* + * + * 4) If there is no return value and it is optional, just return + * AE_OK (_WAK). + */ + if (!(*return_object_ptr)) { + goto exit; + } + + /* * For returned Package objects, check the type of all sub-objects. * Note: Package may have been newly created by call above. */ @@ -268,7 +277,12 @@ acpi_ns_check_object_type(struct acpi_evaluate_info *info, acpi_ut_get_expected_return_types(type_buffer, expected_btypes); - if (package_index == ACPI_NOT_PACKAGE_ELEMENT) { + if (!return_object) { + ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname, + info->node_flags, + "Expected return object of type %s", + type_buffer)); + } else if (package_index == ACPI_NOT_PACKAGE_ELEMENT) { ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname, info->node_flags, "Return type mismatch - found %s, expected %s", diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c index e70911a9e441..e81f15ef659a 100644 --- a/drivers/acpi/acpica/nswalk.c +++ b/drivers/acpi/acpica/nswalk.c @@ -156,9 +156,9 @@ struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type, * max_depth - Depth to which search is to reach * flags - Whether to unlock the NS before invoking * the callback routine - * pre_order_visit - Called during tree pre-order visit + * descending_callback - Called during tree descent * when an object of "Type" is found - * post_order_visit - Called during tree post-order visit + * ascending_callback - Called during tree ascent * when an object of "Type" is found * context - Passed to user function(s) above * return_value - from the user_function if terminated @@ -185,8 +185,8 @@ acpi_ns_walk_namespace(acpi_object_type type, acpi_handle start_node, u32 max_depth, u32 flags, - acpi_walk_callback pre_order_visit, - acpi_walk_callback post_order_visit, + acpi_walk_callback descending_callback, + acpi_walk_callback ascending_callback, void *context, void **return_value) { acpi_status status; @@ -255,22 +255,22 @@ acpi_ns_walk_namespace(acpi_object_type type, } /* - * Invoke the user function, either pre-order or post-order + * Invoke the user function, either descending, ascending, * or both. */ if (!node_previously_visited) { - if (pre_order_visit) { + if (descending_callback) { status = - pre_order_visit(child_node, level, - context, - return_value); + descending_callback(child_node, + level, context, + return_value); } } else { - if (post_order_visit) { + if (ascending_callback) { status = - post_order_visit(child_node, level, - context, - return_value); + ascending_callback(child_node, + level, context, + return_value); } } diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index f553cfdb71dd..b38b4b07f86e 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -533,9 +533,9 @@ static void acpi_ns_resolve_references(struct acpi_evaluate_info *info) * PARAMETERS: type - acpi_object_type to search for * start_object - Handle in namespace where search begins * max_depth - Depth to which search is to reach - * pre_order_visit - Called during tree pre-order visit + * descending_callback - Called during tree descent * when an object of "Type" is found - * post_order_visit - Called during tree post-order visit + * ascending_callback - Called during tree ascent * when an object of "Type" is found * context - Passed to user function(s) above * return_value - Location where return value of @@ -563,8 +563,8 @@ acpi_status acpi_walk_namespace(acpi_object_type type, acpi_handle start_object, u32 max_depth, - acpi_walk_callback pre_order_visit, - acpi_walk_callback post_order_visit, + acpi_walk_callback descending_callback, + acpi_walk_callback ascending_callback, void *context, void **return_value) { acpi_status status; @@ -574,7 +574,7 @@ acpi_walk_namespace(acpi_object_type type, /* Parameter validation */ if ((type > ACPI_TYPE_LOCAL_MAX) || - (!max_depth) || (!pre_order_visit && !post_order_visit)) { + (!max_depth) || (!descending_callback && !ascending_callback)) { return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -606,9 +606,9 @@ acpi_walk_namespace(acpi_object_type type, } status = acpi_ns_walk_namespace(type, start_object, max_depth, - ACPI_NS_WALK_UNLOCK, pre_order_visit, - post_order_visit, context, - return_value); + ACPI_NS_WALK_UNLOCK, + descending_callback, ascending_callback, + context, return_value); (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c index f3a4d95899f7..83c164434580 100644 --- a/drivers/acpi/acpica/nsxfname.c +++ b/drivers/acpi/acpica/nsxfname.c @@ -158,6 +158,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) { acpi_status status; struct acpi_namespace_node *node; + char *node_name; /* Parameter validation */ @@ -202,7 +203,8 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) /* Just copy the ACPI name from the Node and zero terminate it */ - ACPI_MOVE_NAME(buffer->pointer, acpi_ut_get_node_name(node)); + node_name = acpi_ut_get_node_name(node); + ACPI_MOVE_NAME(buffer->pointer, node_name); ((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0; status = AE_OK; @@ -379,9 +381,14 @@ acpi_get_object_info(acpi_handle handle, * Get extra info for ACPI Device/Processor objects only: * Run the _STA, _ADR and, sx_w, and _sx_d methods. * - * Note: none of these methods are required, so they may or may + * Notes: none of these methods are required, so they may or may * not be present for this device. The Info->Valid bitfield is used * to indicate which methods were found and run successfully. + * + * For _STA, if the method does not exist, then (as per the ACPI + * specification), the returned current_status flags will indicate + * that the device is present/functional/enabled. Otherwise, the + * current_status flags reflect the value returned from _STA. */ /* Execute the Device._STA method */ diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 33b00d22300a..9d99f2189693 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -117,7 +117,7 @@ static struct acpi_fadt_info fadt_info_table[] = { ACPI_FADT_OFFSET(pm_timer_block), ACPI_FADT_OFFSET(pm_timer_length), ACPI_PM_TIMER_WIDTH, - ACPI_FADT_REQUIRED}, + ACPI_FADT_SEPARATE_LENGTH}, /* ACPI 5.0A: Timer is optional */ {"Gpe0Block", ACPI_FADT_OFFSET(xgpe0_block), @@ -574,7 +574,7 @@ static void acpi_tb_validate_fadt(void) if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) { /* - * Field is required (Pm1a_event, Pm1a_control, pm_timer). + * Field is required (Pm1a_event, Pm1a_control). * Both the address and length must be non-zero. */ if (!address64->address || !length) { diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c index 7c2ecfb7c2c3..948c95e80d44 100644 --- a/drivers/acpi/acpica/tbxfroot.c +++ b/drivers/acpi/acpica/tbxfroot.c @@ -48,11 +48,6 @@ #define _COMPONENT ACPI_TABLES ACPI_MODULE_NAME("tbxfroot") -/* Local prototypes */ -static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length); - -static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp); - /******************************************************************************* * * FUNCTION: acpi_tb_validate_rsdp @@ -64,8 +59,7 @@ static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp); * DESCRIPTION: Validate the RSDP (ptr) * ******************************************************************************/ - -static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp) +acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp) { /* @@ -74,7 +68,7 @@ static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp) * Note: Sometimes there exists more than one RSDP in memory; the valid * RSDP has a valid checksum, all others have an invalid checksum. */ - if (ACPI_STRNCMP((char *)rsdp, ACPI_SIG_RSDP, + if (ACPI_STRNCMP((char *)rsdp->signature, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1) != 0) { /* Nope, BAD Signature */ @@ -231,7 +225,7 @@ acpi_status acpi_find_root_pointer(acpi_size *table_address) * DESCRIPTION: Search a block of memory for the RSDP signature * ******************************************************************************/ -static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length) +u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length) { acpi_status status; u8 *mem_rover; diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c index ee83adb97b1e..4fd68971019b 100644 --- a/drivers/acpi/acpica/uteval.c +++ b/drivers/acpi/acpica/uteval.c @@ -239,7 +239,8 @@ acpi_ut_evaluate_numeric_object(char *object_name, * RETURN: Status * * DESCRIPTION: Executes _STA for selected device and stores results in - * *Flags. + * *Flags. If _STA does not exist, then the device is assumed + * to be present/functional/enabled (as per the ACPI spec). * * NOTE: Internal function, no parameter validation * @@ -257,6 +258,11 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags) ACPI_BTYPE_INTEGER, &obj_desc); if (ACPI_FAILURE(status)) { if (AE_NOT_FOUND == status) { + /* + * if _STA does not exist, then (as per the ACPI specification), + * the returned flags will indicate that the device is present, + * functional, and enabled. + */ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "_STA on %4.4s was not found, assuming device is present\n", acpi_ut_get_node_name(device_node))); diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index f736448a8606..d6f26bf8a062 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -336,7 +336,6 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_trace_dbg_layer = 0; acpi_gbl_debugger_configuration = DEBUGGER_THREADING; acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT; - acpi_gbl_osi_data = 0; acpi_gbl_osi_mutex = NULL; acpi_gbl_reg_methods_executed = FALSE; diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c index 7e807725c636..8856bd37bc76 100644 --- a/drivers/acpi/acpica/utosi.c +++ b/drivers/acpi/acpica/utosi.c @@ -77,21 +77,20 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = { /* Feature Group Strings */ - {"Extended Address Space Descriptor", NULL, 0, 0} + {"Extended Address Space Descriptor", NULL, ACPI_OSI_FEATURE, 0}, /* * All "optional" feature group strings (features that are implemented - * by the host) should be dynamically added by the host via - * acpi_install_interface and should not be manually added here. - * - * Examples of optional feature group strings: - * - * "Module Device" - * "Processor Device" - * "3.0 Thermal Model" - * "3.0 _SCP Extensions" - * "Processor Aggregator Device" + * by the host) should be dynamically modified to VALID by the host via + * acpi_install_interface or acpi_update_interfaces. Such optional feature + * group strings are set as INVALID by default here. */ + + {"Module Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0}, + {"Processor Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0}, + {"3.0 Thermal Model", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0}, + {"3.0 _SCP Extensions", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0}, + {"Processor Aggregator Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0} }; /******************************************************************************* @@ -158,11 +157,20 @@ acpi_status acpi_ut_interface_terminate(void) while (next_interface) { acpi_gbl_supported_interfaces = next_interface->next; - /* Only interfaces added at runtime can be freed */ - if (next_interface->flags & ACPI_OSI_DYNAMIC) { + + /* Only interfaces added at runtime can be freed */ + ACPI_FREE(next_interface->name); ACPI_FREE(next_interface); + } else { + /* Interface is in static list. Reset it to invalid or valid. */ + + if (next_interface->flags & ACPI_OSI_DEFAULT_INVALID) { + next_interface->flags |= ACPI_OSI_INVALID; + } else { + next_interface->flags &= ~ACPI_OSI_INVALID; + } } next_interface = acpi_gbl_supported_interfaces; @@ -278,6 +286,49 @@ acpi_status acpi_ut_remove_interface(acpi_string interface_name) /******************************************************************************* * + * FUNCTION: acpi_ut_update_interfaces + * + * PARAMETERS: action - Actions to be performed during the + * update + * + * RETURN: Status + * + * DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor + * strings or/and feature group strings. + * Caller MUST hold acpi_gbl_osi_mutex + * + ******************************************************************************/ + +acpi_status acpi_ut_update_interfaces(u8 action) +{ + struct acpi_interface_info *next_interface; + + next_interface = acpi_gbl_supported_interfaces; + while (next_interface) { + if (((next_interface->flags & ACPI_OSI_FEATURE) && + (action & ACPI_FEATURE_STRINGS)) || + (!(next_interface->flags & ACPI_OSI_FEATURE) && + (action & ACPI_VENDOR_STRINGS))) { + if (action & ACPI_DISABLE_INTERFACES) { + + /* Mark the interfaces as invalid */ + + next_interface->flags |= ACPI_OSI_INVALID; + } else { + /* Mark the interfaces as valid */ + + next_interface->flags &= ~ACPI_OSI_INVALID; + } + } + + next_interface = next_interface->next; + } + + return (AE_OK); +} + +/******************************************************************************* + * * FUNCTION: acpi_ut_get_interface * * PARAMETERS: interface_name - The interface to find diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c index c53759b76a3f..cb1e9cc32d5f 100644 --- a/drivers/acpi/acpica/utstring.c +++ b/drivers/acpi/acpica/utstring.c @@ -333,7 +333,8 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer) * FUNCTION: acpi_ut_print_string * * PARAMETERS: string - Null terminated ASCII string - * max_length - Maximum output length + * max_length - Maximum output length. Used to constrain the + * length of strings during debug output only. * * RETURN: None * @@ -342,7 +343,7 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer) * ******************************************************************************/ -void acpi_ut_print_string(char *string, u8 max_length) +void acpi_ut_print_string(char *string, u16 max_length) { u32 i; diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index 6505774f223e..03a211e6e26a 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -389,6 +389,34 @@ ACPI_EXPORT_SYMBOL(acpi_install_interface_handler) /***************************************************************************** * + * FUNCTION: acpi_update_interfaces + * + * PARAMETERS: action - Actions to be performed during the + * update + * + * RETURN: Status + * + * DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor + * string or/and feature group strings. + * + ****************************************************************************/ +acpi_status acpi_update_interfaces(u8 action) +{ + acpi_status status; + + status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + return (status); + } + + status = acpi_ut_update_interfaces(action); + + acpi_os_release_mutex(acpi_gbl_osi_mutex); + return (status); +} + +/***************************************************************************** + * * FUNCTION: acpi_check_address_range * * PARAMETERS: space_id - Address space ID @@ -402,6 +430,7 @@ ACPI_EXPORT_SYMBOL(acpi_install_interface_handler) * ASL operation region address ranges. * ****************************************************************************/ + u32 acpi_check_address_range(acpi_adr_space_type space_id, acpi_physical_address address, diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index d405fbad406a..2c9958cd7a43 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -527,18 +527,14 @@ static int acpi_battery_get_state(struct acpi_battery *battery) static int acpi_battery_set_alarm(struct acpi_battery *battery) { acpi_status status = 0; - union acpi_object arg0 = { .type = ACPI_TYPE_INTEGER }; - struct acpi_object_list arg_list = { 1, &arg0 }; if (!acpi_battery_present(battery) || !test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags)) return -ENODEV; - arg0.integer.value = battery->alarm; - mutex_lock(&battery->lock); - status = acpi_evaluate_object(battery->device->handle, "_BTP", - &arg_list, NULL); + status = acpi_execute_simple_method(battery->device->handle, "_BTP", + battery->alarm); mutex_unlock(&battery->lock); if (ACPI_FAILURE(status)) @@ -550,12 +546,8 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery) static int acpi_battery_init_alarm(struct acpi_battery *battery) { - acpi_status status = AE_OK; - acpi_handle handle = NULL; - /* See if alarms are supported, and if so, set default */ - status = acpi_get_handle(battery->device->handle, "_BTP", &handle); - if (ACPI_FAILURE(status)) { + if (!acpi_has_method(battery->device->handle, "_BTP")) { clear_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags); return 0; } @@ -1036,8 +1028,6 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event) if (event == ACPI_BATTERY_NOTIFY_INFO) acpi_battery_refresh(battery); acpi_battery_update(battery); - acpi_bus_generate_proc_event(device, event, - acpi_battery_present(battery)); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, acpi_battery_present(battery)); @@ -1068,7 +1058,7 @@ static int acpi_battery_add(struct acpi_device *device) { int result = 0; struct acpi_battery *battery = NULL; - acpi_handle handle; + if (!device) return -EINVAL; battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL); @@ -1080,8 +1070,7 @@ static int acpi_battery_add(struct acpi_device *device) device->driver_data = battery; mutex_init(&battery->lock); mutex_init(&battery->sysfs_lock); - if (ACPI_SUCCESS(acpi_get_handle(battery->device->handle, - "_BIX", &handle))) + if (acpi_has_method(battery->device->handle, "_BIX")) set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags); result = acpi_battery_update(battery); if (result) diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index cb9629638def..9515f18898b2 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -192,6 +192,12 @@ static int __init dmi_disable_osi_win7(const struct dmi_system_id *d) acpi_osi_setup("!Windows 2009"); return 0; } +static int __init dmi_disable_osi_win8(const struct dmi_system_id *d) +{ + printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident); + acpi_osi_setup("!Windows 2012"); + return 0; +} static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { { @@ -267,6 +273,30 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"), }, }, + { + .callback = dmi_disable_osi_win8, + .ident = "ASUS Zenbook Prime UX31A", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), + DMI_MATCH(DMI_PRODUCT_NAME, "UX31A"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "Dell Inspiron 15R SE", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "Lenovo ThinkPad Edge E530", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "3259A2G"), + }, + }, /* * BIOS invocation of _OSI(Linux) is almost always a BIOS bug. diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index a5bb33bab448..b587ec8257b2 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -89,27 +89,6 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = { Device Management -------------------------------------------------------------------------- */ -int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) -{ - acpi_status status; - - if (!device) - return -EINVAL; - - /* TBD: Support fixed-feature devices */ - - status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device); - if (ACPI_FAILURE(status) || !*device) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", - handle)); - return -ENODEV; - } - - return 0; -} - -EXPORT_SYMBOL(acpi_bus_get_device); - acpi_status acpi_bus_get_status_handle(acpi_handle handle, unsigned long long *sta) { @@ -346,104 +325,6 @@ static void acpi_bus_osc_support(void) } /* -------------------------------------------------------------------------- - Event Management - -------------------------------------------------------------------------- */ - -#ifdef CONFIG_ACPI_PROC_EVENT -static DEFINE_SPINLOCK(acpi_bus_event_lock); - -LIST_HEAD(acpi_bus_event_list); -DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue); - -extern int event_is_open; - -int acpi_bus_generate_proc_event4(const char *device_class, const char *bus_id, u8 type, int data) -{ - struct acpi_bus_event *event; - unsigned long flags; - - /* drop event on the floor if no one's listening */ - if (!event_is_open) - return 0; - - event = kzalloc(sizeof(struct acpi_bus_event), GFP_ATOMIC); - if (!event) - return -ENOMEM; - - strcpy(event->device_class, device_class); - strcpy(event->bus_id, bus_id); - event->type = type; - event->data = data; - - spin_lock_irqsave(&acpi_bus_event_lock, flags); - list_add_tail(&event->node, &acpi_bus_event_list); - spin_unlock_irqrestore(&acpi_bus_event_lock, flags); - - wake_up_interruptible(&acpi_bus_event_queue); - - return 0; - -} - -EXPORT_SYMBOL_GPL(acpi_bus_generate_proc_event4); - -int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data) -{ - if (!device) - return -EINVAL; - return acpi_bus_generate_proc_event4(device->pnp.device_class, - device->pnp.bus_id, type, data); -} - -EXPORT_SYMBOL(acpi_bus_generate_proc_event); - -int acpi_bus_receive_event(struct acpi_bus_event *event) -{ - unsigned long flags; - struct acpi_bus_event *entry = NULL; - - DECLARE_WAITQUEUE(wait, current); - - - if (!event) - return -EINVAL; - - if (list_empty(&acpi_bus_event_list)) { - - set_current_state(TASK_INTERRUPTIBLE); - add_wait_queue(&acpi_bus_event_queue, &wait); - - if (list_empty(&acpi_bus_event_list)) - schedule(); - - remove_wait_queue(&acpi_bus_event_queue, &wait); - set_current_state(TASK_RUNNING); - - if (signal_pending(current)) - return -ERESTARTSYS; - } - - spin_lock_irqsave(&acpi_bus_event_lock, flags); - if (!list_empty(&acpi_bus_event_list)) { - entry = list_entry(acpi_bus_event_list.next, - struct acpi_bus_event, node); - list_del(&entry->node); - } - spin_unlock_irqrestore(&acpi_bus_event_lock, flags); - - if (!entry) - return -ENODEV; - - memcpy(event, entry, sizeof(struct acpi_bus_event)); - - kfree(entry); - - return 0; -} - -#endif /* CONFIG_ACPI_PROC_EVENT */ - -/* -------------------------------------------------------------------------- Notification Handling -------------------------------------------------------------------------- */ @@ -499,19 +380,6 @@ static void acpi_bus_check_scope(acpi_handle handle) */ } -static BLOCKING_NOTIFIER_HEAD(acpi_bus_notify_list); -int register_acpi_bus_notifier(struct notifier_block *nb) -{ - return blocking_notifier_chain_register(&acpi_bus_notify_list, nb); -} -EXPORT_SYMBOL_GPL(register_acpi_bus_notifier); - -void unregister_acpi_bus_notifier(struct notifier_block *nb) -{ - blocking_notifier_chain_unregister(&acpi_bus_notify_list, nb); -} -EXPORT_SYMBOL_GPL(unregister_acpi_bus_notifier); - /** * acpi_bus_notify * --------------- @@ -525,9 +393,6 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Notification %#02x to handle %p\n", type, handle)); - blocking_notifier_call_chain(&acpi_bus_notify_list, - type, (void *)handle); - switch (type) { case ACPI_NOTIFY_BUS_CHECK: @@ -593,8 +458,6 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) static int __init acpi_bus_init_irq(void) { acpi_status status; - union acpi_object arg = { ACPI_TYPE_INTEGER }; - struct acpi_object_list arg_list = { 1, &arg }; char *message = NULL; @@ -623,9 +486,7 @@ static int __init acpi_bus_init_irq(void) printk(KERN_INFO PREFIX "Using %s for interrupt routing\n", message); - arg.integer.value = acpi_irq_model; - - status = acpi_evaluate_object(NULL, "\\_PIC", &arg_list, NULL); + status = acpi_execute_simple_method(NULL, "\\_PIC", acpi_irq_model); if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) { ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC")); return -ENODEV; @@ -715,7 +576,6 @@ static int __init acpi_bus_init(void) { int result; acpi_status status; - extern acpi_status acpi_os_initialize1(void); acpi_os_initialize1(); diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index d2e617b5b3f6..a55773801c5f 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -303,8 +303,6 @@ static void acpi_button_notify(struct acpi_device *device, u32 event) pm_wakeup_event(&device->dev, 0); } - - acpi_bus_generate_proc_event(device, event, ++button->pushed); break; default: ACPI_DEBUG_PRINT((ACPI_DB_INFO, diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 4ab807dc8518..59d3202f6b36 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -159,26 +159,29 @@ int acpi_device_set_power(struct acpi_device *device, int state) int result = 0; bool cut_power = false; - if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD)) + if (!device || !device->flags.power_manageable + || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD)) return -EINVAL; /* Make sure this is a valid target state */ if (state == device->power.state) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at %s\n", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] already in %s\n", + device->pnp.bus_id, acpi_power_state_string(state))); return 0; } if (!device->power.states[state].flags.valid) { - printk(KERN_WARNING PREFIX "Device does not support %s\n", - acpi_power_state_string(state)); + dev_warn(&device->dev, "Power state %s not supported\n", + acpi_power_state_string(state)); return -ENODEV; } if (device->parent && (state < device->parent->power.state)) { - printk(KERN_WARNING PREFIX - "Cannot set device to a higher-powered" - " state than parent\n"); + dev_warn(&device->dev, + "Cannot transition to power state %s for parent in %s\n", + acpi_power_state_string(state), + acpi_power_state_string(device->parent->power.state)); return -ENODEV; } @@ -191,8 +194,8 @@ int acpi_device_set_power(struct acpi_device *device, int state) if (state < device->power.state && state != ACPI_STATE_D0 && device->power.state >= ACPI_STATE_D3_HOT) { - printk(KERN_WARNING PREFIX - "Cannot transition to non-D0 state from D3\n"); + dev_warn(&device->dev, + "Cannot transition to non-D0 state from D3\n"); return -ENODEV; } @@ -219,10 +222,8 @@ int acpi_device_set_power(struct acpi_device *device, int state) end: if (result) { - printk(KERN_WARNING PREFIX - "Device [%s] failed to transition to %s\n", - device->pnp.bus_id, - acpi_power_state_string(state)); + dev_warn(&device->dev, "Failed to change power state to %s\n", + acpi_power_state_string(state)); } else { device->power.state = state; ACPI_DEBUG_PRINT((ACPI_DB_INFO, @@ -244,13 +245,6 @@ int acpi_bus_set_power(acpi_handle handle, int state) if (result) return result; - if (!device->flags.power_manageable) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Device [%s] is not power manageable\n", - dev_name(&device->dev))); - return -ENODEV; - } - return acpi_device_set_power(device, state); } EXPORT_SYMBOL(acpi_bus_set_power); diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 826560753389..05ea4be01a83 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -51,8 +51,6 @@ MODULE_PARM_DESC(immediate_undock, "1 (default) will cause the driver to " " the driver to wait for userspace to write the undock sysfs file " " before undocking"); -static struct atomic_notifier_head dock_notifier_list; - static const struct acpi_device_id dock_device_ids[] = { {"LNXDOCK", 0}, {"", 0}, @@ -63,8 +61,6 @@ struct dock_station { acpi_handle handle; unsigned long last_dock_time; u32 flags; - spinlock_t dd_lock; - struct mutex hp_lock; struct list_head dependent_devices; struct list_head sibling; @@ -91,6 +87,12 @@ struct dock_dependent_device { #define DOCK_EVENT 3 #define UNDOCK_EVENT 2 +enum dock_callback_type { + DOCK_CALL_HANDLER, + DOCK_CALL_FIXUP, + DOCK_CALL_UEVENT, +}; + /***************************************************************************** * Dock Dependent device functions * *****************************************************************************/ @@ -101,7 +103,7 @@ struct dock_dependent_device { * * Add the dependent device to the dock's dependent device list. */ -static int +static int __init add_dock_dependent_device(struct dock_station *ds, acpi_handle handle) { struct dock_dependent_device *dd; @@ -112,14 +114,21 @@ add_dock_dependent_device(struct dock_station *ds, acpi_handle handle) dd->handle = handle; INIT_LIST_HEAD(&dd->list); - - spin_lock(&ds->dd_lock); list_add_tail(&dd->list, &ds->dependent_devices); - spin_unlock(&ds->dd_lock); return 0; } +static void remove_dock_dependent_devices(struct dock_station *ds) +{ + struct dock_dependent_device *dd, *aux; + + list_for_each_entry_safe(dd, aux, &ds->dependent_devices, list) { + list_del(&dd->list); + kfree(dd); + } +} + /** * dock_init_hotplug - Initialize a hotplug device on a docking station. * @dd: Dock-dependent device. @@ -135,19 +144,16 @@ static int dock_init_hotplug(struct dock_dependent_device *dd, int ret = 0; mutex_lock(&hotplug_lock); - - if (dd->hp_context) { + if (WARN_ON(dd->hp_context)) { ret = -EEXIST; } else { dd->hp_refcount = 1; dd->hp_ops = ops; dd->hp_context = context; dd->hp_release = release; + if (init) + init(context); } - - if (!WARN_ON(ret) && init) - init(context); - mutex_unlock(&hotplug_lock); return ret; } @@ -162,27 +168,22 @@ static int dock_init_hotplug(struct dock_dependent_device *dd, */ static void dock_release_hotplug(struct dock_dependent_device *dd) { - void (*release)(void *) = NULL; - void *context = NULL; - mutex_lock(&hotplug_lock); - if (dd->hp_context && !--dd->hp_refcount) { + void (*release)(void *) = dd->hp_release; + void *context = dd->hp_context; + dd->hp_ops = NULL; - context = dd->hp_context; dd->hp_context = NULL; - release = dd->hp_release; dd->hp_release = NULL; + if (release) + release(context); } - - if (release && context) - release(context); - mutex_unlock(&hotplug_lock); } static void dock_hotplug_event(struct dock_dependent_device *dd, u32 event, - bool uevent) + enum dock_callback_type cb_type) { acpi_notify_handler cb = NULL; bool run = false; @@ -192,8 +193,18 @@ static void dock_hotplug_event(struct dock_dependent_device *dd, u32 event, if (dd->hp_context) { run = true; dd->hp_refcount++; - if (dd->hp_ops) - cb = uevent ? dd->hp_ops->uevent : dd->hp_ops->handler; + if (dd->hp_ops) { + switch (cb_type) { + case DOCK_CALL_FIXUP: + cb = dd->hp_ops->fixup; + break; + case DOCK_CALL_UEVENT: + cb = dd->hp_ops->uevent; + break; + default: + cb = dd->hp_ops->handler; + } + } } mutex_unlock(&hotplug_lock); @@ -220,63 +231,17 @@ find_dock_dependent_device(struct dock_station *ds, acpi_handle handle) { struct dock_dependent_device *dd; - spin_lock(&ds->dd_lock); - list_for_each_entry(dd, &ds->dependent_devices, list) { - if (handle == dd->handle) { - spin_unlock(&ds->dd_lock); + list_for_each_entry(dd, &ds->dependent_devices, list) + if (handle == dd->handle) return dd; - } - } - spin_unlock(&ds->dd_lock); + return NULL; } /***************************************************************************** * Dock functions * *****************************************************************************/ -/** - * is_dock - see if a device is a dock station - * @handle: acpi handle of the device - * - * If an acpi object has a _DCK method, then it is by definition a dock - * station, so return true. - */ -static int is_dock(acpi_handle handle) -{ - acpi_status status; - acpi_handle tmp; - - status = acpi_get_handle(handle, "_DCK", &tmp); - if (ACPI_FAILURE(status)) - return 0; - return 1; -} - -static int is_ejectable(acpi_handle handle) -{ - acpi_status status; - acpi_handle tmp; - - status = acpi_get_handle(handle, "_EJ0", &tmp); - if (ACPI_FAILURE(status)) - return 0; - return 1; -} - -static int is_ata(acpi_handle handle) -{ - acpi_handle tmp; - - if ((ACPI_SUCCESS(acpi_get_handle(handle, "_GTF", &tmp))) || - (ACPI_SUCCESS(acpi_get_handle(handle, "_GTM", &tmp))) || - (ACPI_SUCCESS(acpi_get_handle(handle, "_STM", &tmp))) || - (ACPI_SUCCESS(acpi_get_handle(handle, "_SDD", &tmp)))) - return 1; - - return 0; -} - -static int is_battery(acpi_handle handle) +static int __init is_battery(acpi_handle handle) { struct acpi_device_info *info; int ret = 1; @@ -292,17 +257,13 @@ static int is_battery(acpi_handle handle) return ret; } -static int is_ejectable_bay(acpi_handle handle) +/* Check whether ACPI object is an ejectable battery or disk bay */ +static bool __init is_ejectable_bay(acpi_handle handle) { - acpi_handle phandle; + if (acpi_has_method(handle, "_EJ0") && is_battery(handle)) + return true; - if (!is_ejectable(handle)) - return 0; - if (is_battery(handle) || is_ata(handle)) - return 1; - if (!acpi_get_parent(handle, &phandle) && is_ata(phandle)) - return 1; - return 0; + return acpi_bay_match(handle); } /** @@ -320,7 +281,7 @@ int is_dock_device(acpi_handle handle) if (!dock_station_count) return 0; - if (is_dock(handle)) + if (acpi_dock_match(handle)) return 1; list_for_each_entry(dock_station, &dock_stations, sibling) @@ -359,10 +320,8 @@ static int dock_present(struct dock_station *ds) * handle if one does not exist already. This should cause * acpi to scan for drivers for the given devices, and call * matching driver's add routine. - * - * Returns a pointer to the acpi_device corresponding to the handle. */ -static struct acpi_device * dock_create_acpi_device(acpi_handle handle) +static void dock_create_acpi_device(acpi_handle handle) { struct acpi_device *device; int ret; @@ -375,10 +334,7 @@ static struct acpi_device * dock_create_acpi_device(acpi_handle handle) ret = acpi_bus_scan(handle); if (ret) pr_debug("error adding bus, %x\n", -ret); - - acpi_bus_get_device(handle, &device); } - return device; } /** @@ -397,9 +353,29 @@ static void dock_remove_acpi_device(acpi_handle handle) } /** - * hotplug_dock_devices - insert or remove devices on the dock station + * hot_remove_dock_devices - Remove dock station devices. + * @ds: Dock station. + */ +static void hot_remove_dock_devices(struct dock_station *ds) +{ + struct dock_dependent_device *dd; + + /* + * Walk the list in reverse order so that devices that have been added + * last are removed first (in case there are some indirect dependencies + * between them). + */ + list_for_each_entry_reverse(dd, &ds->dependent_devices, list) + dock_hotplug_event(dd, ACPI_NOTIFY_EJECT_REQUEST, false); + + list_for_each_entry_reverse(dd, &ds->dependent_devices, list) + dock_remove_acpi_device(dd->handle); +} + +/** + * hotplug_dock_devices - Insert devices on a dock station. * @ds: the dock station - * @event: either bus check or eject request + * @event: either bus check or device check request * * Some devices on the dock station need to have drivers called * to perform hotplug operations after a dock event has occurred. @@ -410,27 +386,21 @@ static void hotplug_dock_devices(struct dock_station *ds, u32 event) { struct dock_dependent_device *dd; - mutex_lock(&ds->hp_lock); + /* Call driver specific post-dock fixups. */ + list_for_each_entry(dd, &ds->dependent_devices, list) + dock_hotplug_event(dd, event, DOCK_CALL_FIXUP); - /* - * First call driver specific hotplug functions - */ + /* Call driver specific hotplug functions. */ list_for_each_entry(dd, &ds->dependent_devices, list) - dock_hotplug_event(dd, event, false); + dock_hotplug_event(dd, event, DOCK_CALL_HANDLER); /* - * Now make sure that an acpi_device is created for each - * dependent device, or removed if this is an eject request. - * This will cause acpi_drivers to be stopped/started if they - * exist + * Now make sure that an acpi_device is created for each dependent + * device. That will cause scan handlers to be attached to device + * objects or acpi_drivers to be stopped/started if they are present. */ - list_for_each_entry(dd, &ds->dependent_devices, list) { - if (event == ACPI_NOTIFY_EJECT_REQUEST) - dock_remove_acpi_device(dd->handle); - else - dock_create_acpi_device(dd->handle); - } - mutex_unlock(&ds->hp_lock); + list_for_each_entry(dd, &ds->dependent_devices, list) + dock_create_acpi_device(dd->handle); } static void dock_event(struct dock_station *ds, u32 event, int num) @@ -453,44 +423,13 @@ static void dock_event(struct dock_station *ds, u32 event, int num) kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp); list_for_each_entry(dd, &ds->dependent_devices, list) - dock_hotplug_event(dd, event, true); + dock_hotplug_event(dd, event, DOCK_CALL_UEVENT); if (num != DOCK_EVENT) kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp); } /** - * eject_dock - respond to a dock eject request - * @ds: the dock station - * - * This is called after _DCK is called, to execute the dock station's - * _EJ0 method. - */ -static void eject_dock(struct dock_station *ds) -{ - struct acpi_object_list arg_list; - union acpi_object arg; - acpi_status status; - acpi_handle tmp; - - /* all dock devices should have _EJ0, but check anyway */ - status = acpi_get_handle(ds->handle, "_EJ0", &tmp); - if (ACPI_FAILURE(status)) { - pr_debug("No _EJ0 support for dock device\n"); - return; - } - - arg_list.count = 1; - arg_list.pointer = &arg; - arg.type = ACPI_TYPE_INTEGER; - arg.integer.value = 1; - - status = acpi_evaluate_object(ds->handle, "_EJ0", &arg_list, NULL); - if (ACPI_FAILURE(status)) - pr_debug("Failed to evaluate _EJ0!\n"); -} - -/** * handle_dock - handle a dock event * @ds: the dock station * @dock: to dock, or undock - that is the question @@ -550,27 +489,6 @@ static inline void complete_undock(struct dock_station *ds) ds->flags &= ~(DOCK_UNDOCKING); } -static void dock_lock(struct dock_station *ds, int lock) -{ - struct acpi_object_list arg_list; - union acpi_object arg; - acpi_status status; - - arg_list.count = 1; - arg_list.pointer = &arg; - arg.type = ACPI_TYPE_INTEGER; - arg.integer.value = !!lock; - status = acpi_evaluate_object(ds->handle, "_LCK", &arg_list, NULL); - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - if (lock) - acpi_handle_warn(ds->handle, - "Locking device failed (0x%x)\n", status); - else - acpi_handle_warn(ds->handle, - "Unlocking device failed (0x%x)\n", status); - } -} - /** * dock_in_progress - see if we are in the middle of handling a dock event * @ds: the dock station @@ -588,37 +506,6 @@ static int dock_in_progress(struct dock_station *ds) } /** - * register_dock_notifier - add yourself to the dock notifier list - * @nb: the callers notifier block - * - * If a driver wishes to be notified about dock events, they can - * use this function to put a notifier block on the dock notifier list. - * this notifier call chain will be called after a dock event, but - * before hotplugging any new devices. - */ -int register_dock_notifier(struct notifier_block *nb) -{ - if (!dock_station_count) - return -ENODEV; - - return atomic_notifier_chain_register(&dock_notifier_list, nb); -} -EXPORT_SYMBOL_GPL(register_dock_notifier); - -/** - * unregister_dock_notifier - remove yourself from the dock notifier list - * @nb: the callers notifier block - */ -void unregister_dock_notifier(struct notifier_block *nb) -{ - if (!dock_station_count) - return; - - atomic_notifier_chain_unregister(&dock_notifier_list, nb); -} -EXPORT_SYMBOL_GPL(unregister_dock_notifier); - -/** * register_hotplug_dock_device - register a hotplug function * @handle: the handle of the device * @ops: handlers to call after docking @@ -703,10 +590,10 @@ static int handle_eject_request(struct dock_station *ds, u32 event) */ dock_event(ds, event, UNDOCK_EVENT); - hotplug_dock_devices(ds, ACPI_NOTIFY_EJECT_REQUEST); + hot_remove_dock_devices(ds); undock(ds); - dock_lock(ds, 0); - eject_dock(ds); + acpi_evaluate_lck(ds->handle, 0); + acpi_evaluate_ej0(ds->handle); if (dock_present(ds)) { acpi_handle_err(ds->handle, "Unable to undock!\n"); return -EBUSY; @@ -717,18 +604,17 @@ static int handle_eject_request(struct dock_station *ds, u32 event) /** * dock_notify - act upon an acpi dock notification - * @handle: the dock station handle + * @ds: dock station * @event: the acpi event - * @data: our driver data struct * * If we are notified to dock, then check to see if the dock is * present and then dock. Notify all drivers of the dock event, * and then hotplug and devices that may need hotplugging. */ -static void dock_notify(acpi_handle handle, u32 event, void *data) +static void dock_notify(struct dock_station *ds, u32 event) { - struct dock_station *ds = data; - struct acpi_device *tmp; + acpi_handle handle = ds->handle; + struct acpi_device *ad; int surprise_removal = 0; /* @@ -751,8 +637,7 @@ static void dock_notify(acpi_handle handle, u32 event, void *data) switch (event) { case ACPI_NOTIFY_BUS_CHECK: case ACPI_NOTIFY_DEVICE_CHECK: - if (!dock_in_progress(ds) && acpi_bus_get_device(ds->handle, - &tmp)) { + if (!dock_in_progress(ds) && acpi_bus_get_device(handle, &ad)) { begin_dock(ds); dock(ds); if (!dock_present(ds)) { @@ -760,12 +645,10 @@ static void dock_notify(acpi_handle handle, u32 event, void *data) complete_dock(ds); break; } - atomic_notifier_call_chain(&dock_notifier_list, - event, NULL); hotplug_dock_devices(ds, event); complete_dock(ds); dock_event(ds, event, DOCK_EVENT); - dock_lock(ds, 1); + acpi_evaluate_lck(ds->handle, 1); acpi_update_all_gpes(); break; } @@ -789,9 +672,8 @@ static void dock_notify(acpi_handle handle, u32 event, void *data) } struct dock_data { - acpi_handle handle; - unsigned long event; struct dock_station *ds; + u32 event; }; static void acpi_dock_deferred_cb(void *context) @@ -799,52 +681,31 @@ static void acpi_dock_deferred_cb(void *context) struct dock_data *data = context; acpi_scan_lock_acquire(); - dock_notify(data->handle, data->event, data->ds); + dock_notify(data->ds, data->event); acpi_scan_lock_release(); kfree(data); } -static int acpi_dock_notifier_call(struct notifier_block *this, - unsigned long event, void *data) +static void dock_notify_handler(acpi_handle handle, u32 event, void *data) { - struct dock_station *dock_station; - acpi_handle handle = data; + struct dock_data *dd; if (event != ACPI_NOTIFY_BUS_CHECK && event != ACPI_NOTIFY_DEVICE_CHECK && event != ACPI_NOTIFY_EJECT_REQUEST) - return 0; - - acpi_scan_lock_acquire(); - - list_for_each_entry(dock_station, &dock_stations, sibling) { - if (dock_station->handle == handle) { - struct dock_data *dd; - acpi_status status; - - dd = kmalloc(sizeof(*dd), GFP_KERNEL); - if (!dd) - break; + return; - dd->handle = handle; - dd->event = event; - dd->ds = dock_station; - status = acpi_os_hotplug_execute(acpi_dock_deferred_cb, - dd); - if (ACPI_FAILURE(status)) - kfree(dd); + dd = kmalloc(sizeof(*dd), GFP_KERNEL); + if (dd) { + acpi_status status; - break; - } + dd->ds = data; + dd->event = event; + status = acpi_os_hotplug_execute(acpi_dock_deferred_cb, dd); + if (ACPI_FAILURE(status)) + kfree(dd); } - - acpi_scan_lock_release(); - return 0; } -static struct notifier_block dock_acpi_notifier = { - .notifier_call = acpi_dock_notifier_call, -}; - /** * find_dock_devices - find devices on the dock station * @handle: the handle of the device we are examining @@ -856,29 +717,16 @@ static struct notifier_block dock_acpi_notifier = { * check to see if an object has an _EJD method. If it does, then it * will see if it is dependent on the dock station. */ -static acpi_status -find_dock_devices(acpi_handle handle, u32 lvl, void *context, void **rv) +static acpi_status __init find_dock_devices(acpi_handle handle, u32 lvl, + void *context, void **rv) { - acpi_status status; - acpi_handle tmp, parent; struct dock_station *ds = context; + acpi_handle ejd = NULL; - status = acpi_bus_get_ejd(handle, &tmp); - if (ACPI_FAILURE(status)) { - /* try the parent device as well */ - status = acpi_get_parent(handle, &parent); - if (ACPI_FAILURE(status)) - goto fdd_out; - /* see if parent is dependent on dock */ - status = acpi_bus_get_ejd(parent, &tmp); - if (ACPI_FAILURE(status)) - goto fdd_out; - } - - if (tmp == ds->handle) + acpi_bus_get_ejd(handle, &ejd); + if (ejd == ds->handle) add_dock_dependent_device(ds, handle); -fdd_out: return AE_OK; } @@ -988,13 +836,13 @@ static struct attribute_group dock_attribute_group = { */ static int __init dock_add(acpi_handle handle) { - int ret, id; - struct dock_station ds, *dock_station; + struct dock_station *dock_station, ds = { NULL, }; struct platform_device *dd; + acpi_status status; + int ret; - id = dock_station_count; - memset(&ds, 0, sizeof(ds)); - dd = platform_device_register_data(NULL, "dock", id, &ds, sizeof(ds)); + dd = platform_device_register_data(NULL, "dock", dock_station_count, + &ds, sizeof(ds)); if (IS_ERR(dd)) return PTR_ERR(dd); @@ -1004,18 +852,15 @@ static int __init dock_add(acpi_handle handle) dock_station->dock_device = dd; dock_station->last_dock_time = jiffies - HZ; - mutex_init(&dock_station->hp_lock); - spin_lock_init(&dock_station->dd_lock); INIT_LIST_HEAD(&dock_station->sibling); - ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list); INIT_LIST_HEAD(&dock_station->dependent_devices); /* we want the dock device to send uevents */ dev_set_uevent_suppress(&dd->dev, 0); - if (is_dock(handle)) + if (acpi_dock_match(handle)) dock_station->flags |= DOCK_IS_DOCK; - if (is_ata(handle)) + if (acpi_ata_match(handle)) dock_station->flags |= DOCK_IS_ATA; if (is_battery(handle)) dock_station->flags |= DOCK_IS_BAT; @@ -1034,11 +879,19 @@ static int __init dock_add(acpi_handle handle) if (ret) goto err_rmgroup; + status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, + dock_notify_handler, dock_station); + if (ACPI_FAILURE(status)) { + ret = -ENODEV; + goto err_rmgroup; + } + dock_station_count++; list_add(&dock_station->sibling, &dock_stations); return 0; err_rmgroup: + remove_dock_dependent_devices(dock_station); sysfs_remove_group(&dd->dev.kobj, &dock_attribute_group); err_unregister: platform_device_unregister(dd); @@ -1055,10 +908,10 @@ err_unregister: * * This is called by acpi_walk_namespace to look for dock stations and bays. */ -static __init acpi_status +static acpi_status __init find_dock_and_bay(acpi_handle handle, u32 lvl, void *context, void **rv) { - if (is_dock(handle) || is_ejectable_bay(handle)) + if (acpi_dock_match(handle) || is_ejectable_bay(handle)) dock_add(handle); return AE_OK; @@ -1078,7 +931,6 @@ void __init acpi_dock_init(void) return; } - register_acpi_bus_notifier(&dock_acpi_notifier); pr_info(PREFIX "%s: %d docks/bays found\n", ACPI_DOCK_DRIVER_DESCRIPTION, dock_station_count); } diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 80403c1a89f8..a06d98374705 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -948,7 +948,7 @@ static int ec_enlarge_storm_threshold(const struct dmi_system_id *id) return 0; } -static struct dmi_system_id __initdata ec_dmi_table[] = { +static struct dmi_system_id ec_dmi_table[] __initdata = { { ec_skip_dsdt_scan, "Compal JFL92", { DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"), @@ -987,6 +987,10 @@ static struct dmi_system_id __initdata ec_dmi_table[] = { ec_skip_dsdt_scan, "HP Folio 13", { DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13"),}, NULL}, + { + ec_validate_ecdt, "ASUS hardware", { + DMI_MATCH(DMI_SYS_VENDOR, "ASUSTek Computer Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "L4R"),}, NULL}, {}, }; @@ -1049,10 +1053,8 @@ int __init acpi_ec_ecdt_probe(void) * which needs it, has fake EC._INI method, so use it as flag. * Keep boot_ec struct as it will be needed soon. */ - acpi_handle dummy; if (!dmi_name_in_vendors("ASUS") || - ACPI_FAILURE(acpi_get_handle(boot_ec->handle, "_INI", - &dummy))) + !acpi_has_method(boot_ec->handle, "_INI")) return -ENODEV; } install: diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index 1442737cedec..8247fcdde079 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -21,100 +21,6 @@ #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("event"); -#ifdef CONFIG_ACPI_PROC_EVENT -/* Global vars for handling event proc entry */ -static DEFINE_SPINLOCK(acpi_system_event_lock); -int event_is_open = 0; -extern struct list_head acpi_bus_event_list; -extern wait_queue_head_t acpi_bus_event_queue; - -static int acpi_system_open_event(struct inode *inode, struct file *file) -{ - spin_lock_irq(&acpi_system_event_lock); - - if (event_is_open) - goto out_busy; - - event_is_open = 1; - - spin_unlock_irq(&acpi_system_event_lock); - return 0; - - out_busy: - spin_unlock_irq(&acpi_system_event_lock); - return -EBUSY; -} - -static ssize_t -acpi_system_read_event(struct file *file, char __user * buffer, size_t count, - loff_t * ppos) -{ - int result = 0; - struct acpi_bus_event event; - static char str[ACPI_MAX_STRING]; - static int chars_remaining = 0; - static char *ptr; - - if (!chars_remaining) { - memset(&event, 0, sizeof(struct acpi_bus_event)); - - if ((file->f_flags & O_NONBLOCK) - && (list_empty(&acpi_bus_event_list))) - return -EAGAIN; - - result = acpi_bus_receive_event(&event); - if (result) - return result; - - chars_remaining = sprintf(str, "%s %s %08x %08x\n", - event.device_class ? event. - device_class : "<unknown>", - event.bus_id ? event. - bus_id : "<unknown>", event.type, - event.data); - ptr = str; - } - - if (chars_remaining < count) { - count = chars_remaining; - } - - if (copy_to_user(buffer, ptr, count)) - return -EFAULT; - - *ppos += count; - chars_remaining -= count; - ptr += count; - - return count; -} - -static int acpi_system_close_event(struct inode *inode, struct file *file) -{ - spin_lock_irq(&acpi_system_event_lock); - event_is_open = 0; - spin_unlock_irq(&acpi_system_event_lock); - return 0; -} - -static unsigned int acpi_system_poll_event(struct file *file, poll_table * wait) -{ - poll_wait(file, &acpi_bus_event_queue, wait); - if (!list_empty(&acpi_bus_event_list)) - return POLLIN | POLLRDNORM; - return 0; -} - -static const struct file_operations acpi_system_event_ops = { - .owner = THIS_MODULE, - .open = acpi_system_open_event, - .read = acpi_system_read_event, - .release = acpi_system_close_event, - .poll = acpi_system_poll_event, - .llseek = default_llseek, -}; -#endif /* CONFIG_ACPI_PROC_EVENT */ - /* ACPI notifier chain */ static BLOCKING_NOTIFIER_HEAD(acpi_chain_head); @@ -280,9 +186,6 @@ static int acpi_event_genetlink_init(void) static int __init acpi_event_init(void) { -#ifdef CONFIG_ACPI_PROC_EVENT - struct proc_dir_entry *entry; -#endif int error = 0; if (acpi_disabled) @@ -293,15 +196,6 @@ static int __init acpi_event_init(void) if (error) printk(KERN_WARNING PREFIX "Failed to create genetlink family for ACPI event\n"); - -#ifdef CONFIG_ACPI_PROC_EVENT - /* 'event' [R] */ - entry = proc_create("event", S_IRUSR, acpi_root_dir, - &acpi_system_event_ops); - if (!entry) - return -ENODEV; -#endif - return 0; } diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index 5b02a0aa540c..41ade6570bc0 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -93,7 +93,7 @@ static int fan_get_cur_state(struct thermal_cooling_device *cdev, unsigned long if (result) return result; - *state = (acpi_state == ACPI_STATE_D3 ? 0 : + *state = (acpi_state == ACPI_STATE_D3_COLD ? 0 : (acpi_state == ACPI_STATE_D0 ? 1 : -1)); return 0; } @@ -108,7 +108,7 @@ fan_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state) return -EINVAL; result = acpi_bus_set_power(device->handle, - state ? ACPI_STATE_D0 : ACPI_STATE_D3); + state ? ACPI_STATE_D0 : ACPI_STATE_D3_COLD); return result; } diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 408f6b2a5fa8..94672297e1b1 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -173,6 +173,15 @@ acpi_handle acpi_find_child(acpi_handle parent, u64 addr, bool is_bridge) } EXPORT_SYMBOL_GPL(acpi_find_child); +static void acpi_physnode_link_name(char *buf, unsigned int node_id) +{ + if (node_id > 0) + snprintf(buf, PHYSICAL_NODE_NAME_SIZE, + PHYSICAL_NODE_STRING "%u", node_id); + else + strcpy(buf, PHYSICAL_NODE_STRING); +} + int acpi_bind_one(struct device *dev, acpi_handle handle) { struct acpi_device *acpi_dev; @@ -216,8 +225,15 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) list_for_each_entry(pn, &acpi_dev->physical_node_list, node) { /* Sanity check. */ if (pn->dev == dev) { + mutex_unlock(&acpi_dev->physical_node_lock); + dev_warn(dev, "Already associated with ACPI node\n"); - goto err_free; + kfree(physical_node); + if (ACPI_HANDLE(dev) != handle) + goto err; + + put_device(dev); + return 0; } if (pn->node_id == node_id) { physnode_list = &pn->node; @@ -230,20 +246,23 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) list_add(&physical_node->node, physnode_list); acpi_dev->physical_node_count++; - mutex_unlock(&acpi_dev->physical_node_lock); - if (!ACPI_HANDLE(dev)) ACPI_HANDLE_SET(dev, acpi_dev->handle); - if (!physical_node->node_id) - strcpy(physical_node_name, PHYSICAL_NODE_STRING); - else - sprintf(physical_node_name, - "physical_node%d", physical_node->node_id); + acpi_physnode_link_name(physical_node_name, node_id); retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj, - physical_node_name); + physical_node_name); + if (retval) + dev_err(&acpi_dev->dev, "Failed to create link %s (%d)\n", + physical_node_name, retval); + retval = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj, - "firmware_node"); + "firmware_node"); + if (retval) + dev_err(dev, "Failed to create link firmware_node (%d)\n", + retval); + + mutex_unlock(&acpi_dev->physical_node_lock); if (acpi_dev->wakeup.flags.valid) device_set_wakeup_capable(dev, true); @@ -254,11 +273,6 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) ACPI_HANDLE_SET(dev, NULL); put_device(dev); return retval; - - err_free: - mutex_unlock(&acpi_dev->physical_node_lock); - kfree(physical_node); - goto err; } EXPORT_SYMBOL_GPL(acpi_bind_one); @@ -267,48 +281,37 @@ int acpi_unbind_one(struct device *dev) struct acpi_device_physical_node *entry; struct acpi_device *acpi_dev; acpi_status status; - struct list_head *node, *next; if (!ACPI_HANDLE(dev)) return 0; status = acpi_bus_get_device(ACPI_HANDLE(dev), &acpi_dev); - if (ACPI_FAILURE(status)) - goto err; + if (ACPI_FAILURE(status)) { + dev_err(dev, "Oops, ACPI handle corrupt in %s()\n", __func__); + return -EINVAL; + } mutex_lock(&acpi_dev->physical_node_lock); - list_for_each_safe(node, next, &acpi_dev->physical_node_list) { - char physical_node_name[PHYSICAL_NODE_NAME_SIZE]; - entry = list_entry(node, struct acpi_device_physical_node, - node); - if (entry->dev != dev) - continue; + list_for_each_entry(entry, &acpi_dev->physical_node_list, node) + if (entry->dev == dev) { + char physnode_name[PHYSICAL_NODE_NAME_SIZE]; - list_del(node); + list_del(&entry->node); + acpi_dev->physical_node_count--; - acpi_dev->physical_node_count--; + acpi_physnode_link_name(physnode_name, entry->node_id); + sysfs_remove_link(&acpi_dev->dev.kobj, physnode_name); + sysfs_remove_link(&dev->kobj, "firmware_node"); + ACPI_HANDLE_SET(dev, NULL); + /* acpi_bind_one() increase refcnt by one. */ + put_device(dev); + kfree(entry); + break; + } - if (!entry->node_id) - strcpy(physical_node_name, PHYSICAL_NODE_STRING); - else - sprintf(physical_node_name, - "physical_node%d", entry->node_id); - - sysfs_remove_link(&acpi_dev->dev.kobj, physical_node_name); - sysfs_remove_link(&dev->kobj, "firmware_node"); - ACPI_HANDLE_SET(dev, NULL); - /* acpi_bind_one increase refcnt by one */ - put_device(dev); - kfree(entry); - } mutex_unlock(&acpi_dev->physical_node_lock); - return 0; - -err: - dev_err(dev, "Oops, 'acpi_handle' corrupt\n"); - return -EINVAL; } EXPORT_SYMBOL_GPL(acpi_unbind_one); diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 5da44e81dd4d..20f423337e1f 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -23,6 +23,7 @@ #define PREFIX "ACPI: " +acpi_status acpi_os_initialize1(void); int init_acpi_device_notify(void); int acpi_scan_init(void); #ifdef CONFIG_ACPI_PCI_SLOT diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index 33e609f63585..2e82e5d76930 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -159,7 +159,7 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header) * distance than the others. * Do some quick checks here and only use the SLIT if it passes. */ -static __init int slit_valid(struct acpi_table_slit *slit) +static int __init slit_valid(struct acpi_table_slit *slit) { int i, j; int d = slit->locality_count; diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 6ab2c3505520..e5f416c7f66e 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -52,6 +52,7 @@ #include <acpi/acpi.h> #include <acpi/acpi_bus.h> #include <acpi/processor.h> +#include "internal.h" #define _COMPONENT ACPI_OS_SERVICES ACPI_MODULE_NAME("osl"); @@ -79,6 +80,8 @@ extern char line_buf[80]; static int (*__acpi_os_prepare_sleep)(u8 sleep_state, u32 pm1a_ctrl, u32 pm1b_ctrl); +static int (*__acpi_os_prepare_extended_sleep)(u8 sleep_state, u32 val_a, + u32 val_b); static acpi_osd_handler acpi_irq_handler; static void *acpi_irq_context; @@ -140,7 +143,8 @@ static struct osi_linux { unsigned int enable:1; unsigned int dmi:1; unsigned int cmdline:1; -} osi_linux = {0, 0, 0}; + unsigned int default_disabling:1; +} osi_linux = {0, 0, 0, 0}; static u32 acpi_osi_handler(acpi_string interface, u32 supported) { @@ -563,10 +567,6 @@ static const char * const table_sigs[] = { ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT, ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT, NULL }; -/* Non-fatal errors: Affected tables/files are ignored */ -#define INVALID_TABLE(x, path, name) \ - { pr_err("ACPI OVERRIDE: " x " [%s%s]\n", path, name); continue; } - #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header) /* Must not increase 10 or needs code modification below */ @@ -593,9 +593,11 @@ void __init acpi_initrd_override(void *data, size_t size) data += offset; size -= offset; - if (file.size < sizeof(struct acpi_table_header)) - INVALID_TABLE("Table smaller than ACPI header", - cpio_path, file.name); + if (file.size < sizeof(struct acpi_table_header)) { + pr_err("ACPI OVERRIDE: Table smaller than ACPI header [%s%s]\n", + cpio_path, file.name); + continue; + } table = file.data; @@ -603,15 +605,21 @@ void __init acpi_initrd_override(void *data, size_t size) if (!memcmp(table->signature, table_sigs[sig], 4)) break; - if (!table_sigs[sig]) - INVALID_TABLE("Unknown signature", - cpio_path, file.name); - if (file.size != table->length) - INVALID_TABLE("File length does not match table length", - cpio_path, file.name); - if (acpi_table_checksum(file.data, table->length)) - INVALID_TABLE("Bad table checksum", - cpio_path, file.name); + if (!table_sigs[sig]) { + pr_err("ACPI OVERRIDE: Unknown signature [%s%s]\n", + cpio_path, file.name); + continue; + } + if (file.size != table->length) { + pr_err("ACPI OVERRIDE: File length does not match table length [%s%s]\n", + cpio_path, file.name); + continue; + } + if (acpi_table_checksum(file.data, table->length)) { + pr_err("ACPI OVERRIDE: Bad table checksum [%s%s]\n", + cpio_path, file.name); + continue; + } pr_info("%4.4s ACPI table found in initrd [%s%s][0x%x]\n", table->signature, cpio_path, file.name, table->length); @@ -1351,8 +1359,8 @@ struct osi_setup_entry { bool enable; }; -static struct osi_setup_entry __initdata - osi_setup_entries[OSI_STRING_ENTRIES_MAX] = { +static struct osi_setup_entry + osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = { {"Module Device", true}, {"Processor Device", true}, {"3.0 _SCP Extensions", true}, @@ -1376,6 +1384,17 @@ void __init acpi_osi_setup(char *str) if (*str == '!') { str++; + if (*str == '\0') { + osi_linux.default_disabling = 1; + return; + } else if (*str == '*') { + acpi_update_interfaces(ACPI_DISABLE_ALL_STRINGS); + for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) { + osi = &osi_setup_entries[i]; + osi->enable = false; + } + return; + } enable = false; } @@ -1441,6 +1460,13 @@ static void __init acpi_osi_setup_late(void) int i; acpi_status status; + if (osi_linux.default_disabling) { + status = acpi_update_interfaces(ACPI_DISABLE_ALL_VENDOR_STRINGS); + + if (ACPI_SUCCESS(status)) + printk(KERN_INFO PREFIX "Disabled all _OSI OS vendors\n"); + } + for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) { osi = &osi_setup_entries[i]; str = osi->string; @@ -1779,6 +1805,28 @@ void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, __acpi_os_prepare_sleep = func; } +acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, u32 val_a, + u32 val_b) +{ + int rc = 0; + if (__acpi_os_prepare_extended_sleep) + rc = __acpi_os_prepare_extended_sleep(sleep_state, + val_a, val_b); + if (rc < 0) + return AE_ERROR; + else if (rc > 0) + return AE_CTRL_SKIP; + + return AE_OK; +} + +void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, + u32 val_a, u32 val_b)) +{ + __acpi_os_prepare_extended_sleep = func; +} + + void alloc_acpi_hp_work(acpi_handle handle, u32 type, void *context, void (*func)(struct work_struct *work)) { diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index 033d1179bdb5..d678a180ca2a 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c @@ -159,12 +159,16 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv) return AE_OK; } -void acpi_pci_slot_enumerate(struct pci_bus *bus, acpi_handle handle) +void acpi_pci_slot_enumerate(struct pci_bus *bus) { - mutex_lock(&slot_list_lock); - acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1, - register_slot, NULL, bus, NULL); - mutex_unlock(&slot_list_lock); + acpi_handle handle = ACPI_HANDLE(bus->bridge); + + if (handle) { + mutex_lock(&slot_list_lock); + acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1, + register_slot, NULL, bus, NULL); + mutex_unlock(&slot_list_lock); + } } void acpi_pci_slot_remove(struct pci_bus *bus) diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 5c28c894c0fc..0dbe5cdf3396 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -637,9 +637,7 @@ int acpi_device_sleep_wake(struct acpi_device *dev, } /* Execute _PSW */ - arg_list.count = 1; - in_arg[0].integer.value = enable; - status = acpi_evaluate_object(dev->handle, "_PSW", &arg_list, NULL); + status = acpi_execute_simple_method(dev->handle, "_PSW", enable); if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) { printk(KERN_ERR PREFIX "_PSW execution failed\n"); dev->wakeup.flags.valid = 0; @@ -786,7 +784,7 @@ int acpi_power_get_inferred_state(struct acpi_device *device, int *state) } } - *state = ACPI_STATE_D3; + *state = ACPI_STATE_D3_COLD; return 0; } diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index a5e9f4a5b281..cf34d903f4fb 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -28,7 +28,7 @@ static int __init set_no_mwait(const struct dmi_system_id *id) return 0; } -static struct dmi_system_id __initdata processor_idle_dmi_table[] = { +static struct dmi_system_id processor_idle_dmi_table[] __initdata = { { set_no_mwait, "Extensa 5220", { DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"), diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 870eaf5fa547..e534ba66d5b8 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -91,21 +91,17 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data) acpi_processor_ppc_has_changed(pr, 1); if (saved == pr->performance_platform_limit) break; - acpi_bus_generate_proc_event(device, event, - pr->performance_platform_limit); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, pr->performance_platform_limit); break; case ACPI_PROCESSOR_NOTIFY_POWER: acpi_processor_cst_has_changed(pr); - acpi_bus_generate_proc_event(device, event, 0); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, 0); break; case ACPI_PROCESSOR_NOTIFY_THROTTLING: acpi_processor_tstate_has_changed(pr); - acpi_bus_generate_proc_event(device, event, 0); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, 0); break; @@ -179,7 +175,9 @@ static int __acpi_processor_start(struct acpi_device *device) acpi_processor_load_module(pr); #endif acpi_processor_get_throttling_info(pr); - acpi_processor_get_limit_info(pr); + + if (pr->flags.throttling) + pr->flags.limit = 1; if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver) acpi_processor_power_init(pr); diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 1e9732d809bf..51d7948611da 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -164,17 +164,12 @@ static void acpi_processor_ppc_ost(acpi_handle handle, int status) {.type = ACPI_TYPE_INTEGER,}, }; struct acpi_object_list arg_list = {2, params}; - acpi_handle temp; - params[0].integer.value = ACPI_PROCESSOR_NOTIFY_PERFORMANCE; - params[1].integer.value = status; - - /* when there is no _OST , skip it */ - if (ACPI_FAILURE(acpi_get_handle(handle, "_OST", &temp))) - return; - - acpi_evaluate_object(handle, "_OST", &arg_list, NULL); - return; + if (acpi_has_method(handle, "_OST")) { + params[0].integer.value = ACPI_PROCESSOR_NOTIFY_PERFORMANCE; + params[1].integer.value = status; + acpi_evaluate_object(handle, "_OST", &arg_list, NULL); + } } int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag) @@ -468,14 +463,11 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr) int acpi_processor_get_performance_info(struct acpi_processor *pr) { int result = 0; - acpi_status status = AE_OK; - acpi_handle handle = NULL; if (!pr || !pr->performance || !pr->handle) return -EINVAL; - status = acpi_get_handle(pr->handle, "_PCT", &handle); - if (ACPI_FAILURE(status)) { + if (!acpi_has_method(pr->handle, "_PCT")) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI-based processor performance control unavailable\n")); return -ENODEV; @@ -501,7 +493,7 @@ int acpi_processor_get_performance_info(struct acpi_processor *pr) */ update_bios: #ifdef CONFIG_X86 - if (ACPI_SUCCESS(acpi_get_handle(pr->handle, "_PPC", &handle))){ + if (acpi_has_method(pr->handle, "_PPC")) { if(boot_cpu_has(X86_FEATURE_EST)) printk(KERN_WARNING FW_BUG "BIOS needs update for CPU " "frequency support\n"); diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index e8e652710e65..d1d2e7fb5b30 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -186,18 +186,6 @@ static int cpufreq_set_cur_state(unsigned int cpu, int state) #endif -int acpi_processor_get_limit_info(struct acpi_processor *pr) -{ - - if (!pr) - return -EINVAL; - - if (pr->flags.throttling) - pr->flags.limit = 1; - - return 0; -} - /* thermal coolign device callbacks */ static int acpi_processor_max_state(struct acpi_processor *pr) { diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 3322b47ab7ca..b7201fc6f1e1 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -505,14 +505,12 @@ int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list, void *preproc_data) { struct res_proc_context c; - acpi_handle not_used; acpi_status status; if (!adev || !adev->handle || !list_empty(list)) return -EINVAL; - status = acpi_get_handle(adev->handle, METHOD_NAME__CRS, ¬_used); - if (ACPI_FAILURE(status)) + if (!acpi_has_method(adev->handle, METHOD_NAME__CRS)) return 0; c.list = list; diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index b6241eeb1132..aef7e1cd1e5d 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -873,14 +873,9 @@ static void acpi_sbs_callback(void *context) u8 saved_charger_state = sbs->charger_present; u8 saved_battery_state; acpi_ac_get_present(sbs); - if (sbs->charger_present != saved_charger_state) { -#ifdef CONFIG_ACPI_PROC_EVENT - acpi_bus_generate_proc_event4(ACPI_AC_CLASS, ACPI_AC_DIR_NAME, - ACPI_SBS_NOTIFY_STATUS, - sbs->charger_present); -#endif + if (sbs->charger_present != saved_charger_state) kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE); - } + if (sbs->manager_present) { for (id = 0; id < MAX_SBS_BAT; ++id) { if (!(sbs->batteries_supported & (1 << id))) @@ -890,12 +885,6 @@ static void acpi_sbs_callback(void *context) acpi_battery_read(bat); if (saved_battery_state == bat->present) continue; -#ifdef CONFIG_ACPI_PROC_EVENT - acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS, - bat->name, - ACPI_SBS_NOTIFY_STATUS, - bat->present); -#endif kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE); } } diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 8a46c924effd..61d090b6ce25 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -193,9 +193,6 @@ static acpi_status acpi_bus_online_companions(acpi_handle handle, u32 lvl, static int acpi_scan_hot_remove(struct acpi_device *device) { acpi_handle handle = device->handle; - acpi_handle not_used; - struct acpi_object_list arg_list; - union acpi_object arg; struct device *errdev; acpi_status status; unsigned long long sta; @@ -258,32 +255,15 @@ static int acpi_scan_hot_remove(struct acpi_device *device) put_device(&device->dev); device = NULL; - if (ACPI_SUCCESS(acpi_get_handle(handle, "_LCK", ¬_used))) { - arg_list.count = 1; - arg_list.pointer = &arg; - arg.type = ACPI_TYPE_INTEGER; - arg.integer.value = 0; - acpi_evaluate_object(handle, "_LCK", &arg_list, NULL); - } - - arg_list.count = 1; - arg_list.pointer = &arg; - arg.type = ACPI_TYPE_INTEGER; - arg.integer.value = 1; - + acpi_evaluate_lck(handle, 0); /* * TBD: _EJD support. */ - status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL); - if (ACPI_FAILURE(status)) { - if (status == AE_NOT_FOUND) { - return -ENODEV; - } else { - acpi_handle_warn(handle, "Eject failed (0x%x)\n", - status); - return -EIO; - } - } + status = acpi_evaluate_ej0(handle); + if (status == AE_NOT_FOUND) + return -ENODEV; + else if (ACPI_FAILURE(status)) + return -EIO; /* * Verify if eject was indeed successful. If not, log an error @@ -307,6 +287,7 @@ static void acpi_bus_device_eject(void *context) struct acpi_device *device = NULL; struct acpi_scan_handler *handler; u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; + int error; mutex_lock(&acpi_scan_lock); @@ -321,17 +302,13 @@ static void acpi_bus_device_eject(void *context) } acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); - if (handler->hotplug.mode == AHM_CONTAINER) { - device->flags.eject_pending = true; + if (handler->hotplug.mode == AHM_CONTAINER) kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); - } else { - int error; - get_device(&device->dev); - error = acpi_scan_hot_remove(device); - if (error) - goto err_out; - } + get_device(&device->dev); + error = acpi_scan_hot_remove(device); + if (error) + goto err_out; out: mutex_unlock(&acpi_scan_lock); @@ -516,7 +493,6 @@ acpi_eject_store(struct device *d, struct device_attribute *attr, struct acpi_eject_event *ej_event; acpi_object_type not_used; acpi_status status; - u32 ost_source; int ret; if (!count || buf[0] != '1') @@ -530,43 +506,28 @@ acpi_eject_store(struct device *d, struct device_attribute *attr, if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable) return -ENODEV; - mutex_lock(&acpi_scan_lock); - - if (acpi_device->flags.eject_pending) { - /* ACPI eject notification event. */ - ost_source = ACPI_NOTIFY_EJECT_REQUEST; - acpi_device->flags.eject_pending = 0; - } else { - /* Eject initiated by user space. */ - ost_source = ACPI_OST_EC_OSPM_EJECT; - } ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL); if (!ej_event) { ret = -ENOMEM; goto err_out; } - acpi_evaluate_hotplug_ost(acpi_device->handle, ost_source, + acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); ej_event->device = acpi_device; - ej_event->event = ost_source; + ej_event->event = ACPI_OST_EC_OSPM_EJECT; get_device(&acpi_device->dev); status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event); - if (ACPI_FAILURE(status)) { - put_device(&acpi_device->dev); - kfree(ej_event); - ret = status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN; - goto err_out; - } - ret = count; + if (ACPI_SUCCESS(status)) + return count; - out: - mutex_unlock(&acpi_scan_lock); - return ret; + put_device(&acpi_device->dev); + kfree(ej_event); + ret = status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN; err_out: - acpi_evaluate_hotplug_ost(acpi_device->handle, ost_source, + acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); - goto out; + return ret; } static DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store); @@ -654,7 +615,6 @@ static int acpi_device_setup_files(struct acpi_device *dev) { struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; acpi_status status; - acpi_handle temp; unsigned long long sun; int result = 0; @@ -680,8 +640,7 @@ static int acpi_device_setup_files(struct acpi_device *dev) /* * If device has _STR, 'description' file is created */ - status = acpi_get_handle(dev->handle, "_STR", &temp); - if (ACPI_SUCCESS(status)) { + if (acpi_has_method(dev->handle, "_STR")) { status = acpi_evaluate_object(dev->handle, "_STR", NULL, &buffer); if (ACPI_FAILURE(status)) @@ -711,8 +670,7 @@ static int acpi_device_setup_files(struct acpi_device *dev) * If device has _EJ0, 'eject' file is created that is used to trigger * hot-removal function from userland. */ - status = acpi_get_handle(dev->handle, "_EJ0", &temp); - if (ACPI_SUCCESS(status)) { + if (acpi_has_method(dev->handle, "_EJ0")) { result = device_create_file(&dev->dev, &dev_attr_eject); if (result) return result; @@ -734,9 +692,6 @@ end: static void acpi_device_remove_files(struct acpi_device *dev) { - acpi_status status; - acpi_handle temp; - if (dev->flags.power_manageable) { device_remove_file(&dev->dev, &dev_attr_power_state); if (dev->power.flags.power_resources) @@ -747,20 +702,17 @@ static void acpi_device_remove_files(struct acpi_device *dev) /* * If device has _STR, remove 'description' file */ - status = acpi_get_handle(dev->handle, "_STR", &temp); - if (ACPI_SUCCESS(status)) { + if (acpi_has_method(dev->handle, "_STR")) { kfree(dev->pnp.str_obj); device_remove_file(&dev->dev, &dev_attr_description); } /* * If device has _EJ0, remove 'eject' file. */ - status = acpi_get_handle(dev->handle, "_EJ0", &temp); - if (ACPI_SUCCESS(status)) + if (acpi_has_method(dev->handle, "_EJ0")) device_remove_file(&dev->dev, &dev_attr_eject); - status = acpi_get_handle(dev->handle, "_SUN", &temp); - if (ACPI_SUCCESS(status)) + if (acpi_has_method(dev->handle, "_SUN")) device_remove_file(&dev->dev, &dev_attr_sun); if (dev->pnp.unique_id) @@ -999,6 +951,28 @@ struct bus_type acpi_bus_type = { .uevent = acpi_device_uevent, }; +static void acpi_bus_data_handler(acpi_handle handle, void *context) +{ + /* Intentionally empty. */ +} + +int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) +{ + acpi_status status; + + if (!device) + return -EINVAL; + + status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device); + if (ACPI_FAILURE(status) || !*device) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", + handle)); + return -ENODEV; + } + return 0; +} +EXPORT_SYMBOL_GPL(acpi_bus_get_device); + int acpi_device_add(struct acpi_device *device, void (*release)(struct device *)) { @@ -1210,14 +1184,6 @@ acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd) } EXPORT_SYMBOL_GPL(acpi_bus_get_ejd); -void acpi_bus_data_handler(acpi_handle handle, void *context) -{ - - /* TBD */ - - return; -} - static int acpi_bus_extract_wakeup_device_power_package(acpi_handle handle, struct acpi_device_wakeup *wakeup) { @@ -1336,13 +1302,10 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device) static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device) { - acpi_handle temp; - acpi_status status = 0; int err; /* Presence of _PRW indicates wake capable */ - status = acpi_get_handle(device->handle, "_PRW", &temp); - if (ACPI_FAILURE(status)) + if (!acpi_has_method(device->handle, "_PRW")) return; err = acpi_bus_extract_wakeup_device_power_package(device->handle, @@ -1372,7 +1335,6 @@ static void acpi_bus_init_power_state(struct acpi_device *device, int state) struct acpi_device_power_state *ps = &device->power.states[state]; char pathname[5] = { '_', 'P', 'R', '0' + state, '\0' }; struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - acpi_handle handle; acpi_status status; INIT_LIST_HEAD(&ps->resources); @@ -1395,8 +1357,7 @@ static void acpi_bus_init_power_state(struct acpi_device *device, int state) /* Evaluate "_PSx" to see if we can do explicit sets */ pathname[2] = 'S'; - status = acpi_get_handle(device->handle, pathname, &handle); - if (ACPI_SUCCESS(status)) + if (acpi_has_method(device->handle, pathname)) ps->flags.explicit_set = 1; /* @@ -1415,28 +1376,21 @@ static void acpi_bus_init_power_state(struct acpi_device *device, int state) static void acpi_bus_get_power_flags(struct acpi_device *device) { - acpi_status status; - acpi_handle handle; u32 i; /* Presence of _PS0|_PR0 indicates 'power manageable' */ - status = acpi_get_handle(device->handle, "_PS0", &handle); - if (ACPI_FAILURE(status)) { - status = acpi_get_handle(device->handle, "_PR0", &handle); - if (ACPI_FAILURE(status)) - return; - } + if (!acpi_has_method(device->handle, "_PS0") && + !acpi_has_method(device->handle, "_PR0")) + return; device->flags.power_manageable = 1; /* * Power Management Flags */ - status = acpi_get_handle(device->handle, "_PSC", &handle); - if (ACPI_SUCCESS(status)) + if (acpi_has_method(device->handle, "_PSC")) device->power.flags.explicit_get = 1; - status = acpi_get_handle(device->handle, "_IRC", &handle); - if (ACPI_SUCCESS(status)) + if (acpi_has_method(device->handle, "_IRC")) device->power.flags.inrush_current = 1; /* @@ -1450,8 +1404,8 @@ static void acpi_bus_get_power_flags(struct acpi_device *device) /* Set defaults for D0 and D3 states (always valid) */ device->power.states[ACPI_STATE_D0].flags.valid = 1; device->power.states[ACPI_STATE_D0].power = 100; - device->power.states[ACPI_STATE_D3].flags.valid = 1; - device->power.states[ACPI_STATE_D3].power = 0; + device->power.states[ACPI_STATE_D3_COLD].flags.valid = 1; + device->power.states[ACPI_STATE_D3_COLD].power = 0; /* Set D3cold's explicit_set flag if _PS3 exists. */ if (device->power.states[ACPI_STATE_D3_HOT].flags.explicit_set) @@ -1470,28 +1424,18 @@ static void acpi_bus_get_power_flags(struct acpi_device *device) static void acpi_bus_get_flags(struct acpi_device *device) { - acpi_status status = AE_OK; - acpi_handle temp = NULL; - /* Presence of _STA indicates 'dynamic_status' */ - status = acpi_get_handle(device->handle, "_STA", &temp); - if (ACPI_SUCCESS(status)) + if (acpi_has_method(device->handle, "_STA")) device->flags.dynamic_status = 1; /* Presence of _RMV indicates 'removable' */ - status = acpi_get_handle(device->handle, "_RMV", &temp); - if (ACPI_SUCCESS(status)) + if (acpi_has_method(device->handle, "_RMV")) device->flags.removable = 1; /* Presence of _EJD|_EJ0 indicates 'ejectable' */ - status = acpi_get_handle(device->handle, "_EJD", &temp); - if (ACPI_SUCCESS(status)) + if (acpi_has_method(device->handle, "_EJD") || + acpi_has_method(device->handle, "_EJ0")) device->flags.ejectable = 1; - else { - status = acpi_get_handle(device->handle, "_EJ0", &temp); - if (ACPI_SUCCESS(status)) - device->flags.ejectable = 1; - } } static void acpi_device_get_busid(struct acpi_device *device) @@ -1533,46 +1477,45 @@ static void acpi_device_get_busid(struct acpi_device *device) } /* + * acpi_ata_match - see if an acpi object is an ATA device + * + * If an acpi object has one of the ACPI ATA methods defined, + * then we can safely call it an ATA device. + */ +bool acpi_ata_match(acpi_handle handle) +{ + return acpi_has_method(handle, "_GTF") || + acpi_has_method(handle, "_GTM") || + acpi_has_method(handle, "_STM") || + acpi_has_method(handle, "_SDD"); +} + +/* * acpi_bay_match - see if an acpi object is an ejectable driver bay * * If an acpi object is ejectable and has one of the ACPI ATA methods defined, * then we can safely call it an ejectable drive bay */ -static int acpi_bay_match(acpi_handle handle) +bool acpi_bay_match(acpi_handle handle) { - acpi_status status; - acpi_handle tmp; acpi_handle phandle; - status = acpi_get_handle(handle, "_EJ0", &tmp); - if (ACPI_FAILURE(status)) - return -ENODEV; - - if ((ACPI_SUCCESS(acpi_get_handle(handle, "_GTF", &tmp))) || - (ACPI_SUCCESS(acpi_get_handle(handle, "_GTM", &tmp))) || - (ACPI_SUCCESS(acpi_get_handle(handle, "_STM", &tmp))) || - (ACPI_SUCCESS(acpi_get_handle(handle, "_SDD", &tmp)))) - return 0; + if (!acpi_has_method(handle, "_EJ0")) + return false; + if (acpi_ata_match(handle)) + return true; + if (ACPI_FAILURE(acpi_get_parent(handle, &phandle))) + return false; - if (acpi_get_parent(handle, &phandle)) - return -ENODEV; - - if ((ACPI_SUCCESS(acpi_get_handle(phandle, "_GTF", &tmp))) || - (ACPI_SUCCESS(acpi_get_handle(phandle, "_GTM", &tmp))) || - (ACPI_SUCCESS(acpi_get_handle(phandle, "_STM", &tmp))) || - (ACPI_SUCCESS(acpi_get_handle(phandle, "_SDD", &tmp)))) - return 0; - - return -ENODEV; + return acpi_ata_match(phandle); } /* * acpi_dock_match - see if an acpi object has a _DCK method */ -static int acpi_dock_match(acpi_handle handle) +bool acpi_dock_match(acpi_handle handle) { - acpi_handle tmp; - return acpi_get_handle(handle, "_DCK", &tmp); + return acpi_has_method(handle, "_DCK"); } const char *acpi_device_hid(struct acpi_device *device) @@ -1610,34 +1553,26 @@ static void acpi_add_id(struct acpi_device_pnp *pnp, const char *dev_id) * lacks the SMBUS01 HID and the methods do not have the necessary "_" * prefix. Work around this. */ -static int acpi_ibm_smbus_match(acpi_handle handle) +static bool acpi_ibm_smbus_match(acpi_handle handle) { - acpi_handle h_dummy; - struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL}; - int result; + char node_name[ACPI_PATH_SEGMENT_LENGTH]; + struct acpi_buffer path = { sizeof(node_name), node_name }; if (!dmi_name_in_vendors("IBM")) - return -ENODEV; + return false; /* Look for SMBS object */ - result = acpi_get_name(handle, ACPI_SINGLE_NAME, &path); - if (result) - return result; - - if (strcmp("SMBS", path.pointer)) { - result = -ENODEV; - goto out; - } + if (ACPI_FAILURE(acpi_get_name(handle, ACPI_SINGLE_NAME, &path)) || + strcmp("SMBS", path.pointer)) + return false; /* Does it have the necessary (but misnamed) methods? */ - result = -ENODEV; - if (ACPI_SUCCESS(acpi_get_handle(handle, "SBI", &h_dummy)) && - ACPI_SUCCESS(acpi_get_handle(handle, "SBR", &h_dummy)) && - ACPI_SUCCESS(acpi_get_handle(handle, "SBW", &h_dummy))) - result = 0; -out: - kfree(path.pointer); - return result; + if (acpi_has_method(handle, "SBI") && + acpi_has_method(handle, "SBR") && + acpi_has_method(handle, "SBW")) + return true; + + return false; } static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp, @@ -1685,11 +1620,11 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp, */ if (acpi_is_video_device(handle)) acpi_add_id(pnp, ACPI_VIDEO_HID); - else if (ACPI_SUCCESS(acpi_bay_match(handle))) + else if (acpi_bay_match(handle)) acpi_add_id(pnp, ACPI_BAY_HID); - else if (ACPI_SUCCESS(acpi_dock_match(handle))) + else if (acpi_dock_match(handle)) acpi_add_id(pnp, ACPI_DOCK_HID); - else if (!acpi_ibm_smbus_match(handle)) + else if (acpi_ibm_smbus_match(handle)) acpi_add_id(pnp, ACPI_SMBUS_IBM_HID); else if (list_empty(&pnp->ids) && handle == ACPI_ROOT_OBJECT) { acpi_add_id(pnp, ACPI_BUS_HID); /* \_SB, LNXSYBUS */ @@ -1900,7 +1835,6 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used, struct acpi_device *device = NULL; int type; unsigned long long sta; - acpi_status status; int result; acpi_bus_get_device(handle, &device); @@ -1921,10 +1855,8 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used, if (!(sta & ACPI_STA_DEVICE_PRESENT) && !(sta & ACPI_STA_DEVICE_FUNCTIONING)) { struct acpi_device_wakeup wakeup; - acpi_handle temp; - status = acpi_get_handle(handle, "_PRW", &temp); - if (ACPI_SUCCESS(status)) { + if (acpi_has_method(handle, "_PRW")) { acpi_bus_extract_wakeup_device_power_package(handle, &wakeup); acpi_power_resources_list_free(&wakeup.resources); diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 187ab61889e6..14df30580e15 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -31,12 +31,9 @@ static u8 sleep_states[ACPI_S_STATE_COUNT]; static void acpi_sleep_tts_switch(u32 acpi_state) { - union acpi_object in_arg = { ACPI_TYPE_INTEGER }; - struct acpi_object_list arg_list = { 1, &in_arg }; - acpi_status status = AE_OK; + acpi_status status; - in_arg.integer.value = acpi_state; - status = acpi_evaluate_object(NULL, "\\_TTS", &arg_list, NULL); + status = acpi_execute_simple_method(NULL, "\\_TTS", acpi_state); if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { /* * OS can't evaluate the _TTS object correctly. Some warning @@ -141,7 +138,7 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d) return 0; } -static struct dmi_system_id __initdata acpisleep_dmi_table[] = { +static struct dmi_system_id acpisleep_dmi_table[] __initdata = { { .callback = init_old_suspend_ordering, .ident = "Abit KN9 (nForce4 variant)", @@ -423,10 +420,21 @@ static void acpi_pm_finish(void) } /** - * acpi_pm_end - Finish up suspend sequence. + * acpi_pm_start - Start system PM transition. + */ +static void acpi_pm_start(u32 acpi_state) +{ + acpi_target_sleep_state = acpi_state; + acpi_sleep_tts_switch(acpi_target_sleep_state); + acpi_scan_lock_acquire(); +} + +/** + * acpi_pm_end - Finish up system PM transition. */ static void acpi_pm_end(void) { + acpi_scan_lock_release(); /* * This is necessary in case acpi_pm_finish() is not called during a * failing transition to a sleep state. @@ -454,21 +462,19 @@ static u32 acpi_suspend_states[] = { static int acpi_suspend_begin(suspend_state_t pm_state) { u32 acpi_state = acpi_suspend_states[pm_state]; - int error = 0; + int error; error = (nvs_nosave || nvs_nosave_s3) ? 0 : suspend_nvs_alloc(); if (error) return error; - if (sleep_states[acpi_state]) { - acpi_target_sleep_state = acpi_state; - acpi_sleep_tts_switch(acpi_target_sleep_state); - } else { - printk(KERN_ERR "ACPI does not support this state: %d\n", - pm_state); - error = -ENOSYS; + if (!sleep_states[acpi_state]) { + pr_err("ACPI does not support sleep state S%u\n", acpi_state); + return -ENOSYS; } - return error; + + acpi_pm_start(acpi_state); + return 0; } /** @@ -634,10 +640,8 @@ static int acpi_hibernation_begin(void) int error; error = nvs_nosave ? 0 : suspend_nvs_alloc(); - if (!error) { - acpi_target_sleep_state = ACPI_STATE_S4; - acpi_sleep_tts_switch(acpi_target_sleep_state); - } + if (!error) + acpi_pm_start(ACPI_STATE_S4); return error; } @@ -716,8 +720,10 @@ static int acpi_hibernation_begin_old(void) if (!error) { if (!nvs_nosave) error = suspend_nvs_alloc(); - if (!error) + if (!error) { acpi_target_sleep_state = ACPI_STATE_S4; + acpi_scan_lock_acquire(); + } } return error; } diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index a33821ca3895..6a0329340b42 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -50,11 +50,6 @@ #define ACPI_THERMAL_CLASS "thermal_zone" #define ACPI_THERMAL_DEVICE_NAME "Thermal Zone" -#define ACPI_THERMAL_FILE_STATE "state" -#define ACPI_THERMAL_FILE_TEMPERATURE "temperature" -#define ACPI_THERMAL_FILE_TRIP_POINTS "trip_points" -#define ACPI_THERMAL_FILE_COOLING_MODE "cooling_mode" -#define ACPI_THERMAL_FILE_POLLING_FREQ "polling_frequency" #define ACPI_THERMAL_NOTIFY_TEMPERATURE 0x80 #define ACPI_THERMAL_NOTIFY_THRESHOLDS 0x81 #define ACPI_THERMAL_NOTIFY_DEVICES 0x82 @@ -190,7 +185,6 @@ struct acpi_thermal { struct thermal_zone_device *thermal_zone; int tz_enabled; int kelvin_offset; - struct mutex lock; }; /* -------------------------------------------------------------------------- @@ -239,26 +233,16 @@ static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz) static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode) { - acpi_status status = AE_OK; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list arg_list = { 1, &arg0 }; - acpi_handle handle = NULL; - - if (!tz) return -EINVAL; - status = acpi_get_handle(tz->device->handle, "_SCP", &handle); - if (ACPI_FAILURE(status)) { + if (!acpi_has_method(tz->device->handle, "_SCP")) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n")); return -ENODEV; - } - - arg0.integer.value = mode; - - status = acpi_evaluate_object(handle, NULL, &arg_list, NULL); - if (ACPI_FAILURE(status)) + } else if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle, + "_SCP", mode))) { return -ENODEV; + } return 0; } @@ -491,14 +475,14 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) break; } - if (flag & ACPI_TRIPS_DEVICES) { - memset(&devices, 0, sizeof(struct acpi_handle_list)); + if ((flag & ACPI_TRIPS_DEVICES) + && acpi_has_method(tz->device->handle, "_TZD")) { + memset(&devices, 0, sizeof(devices)); status = acpi_evaluate_reference(tz->device->handle, "_TZD", NULL, &devices); - if (memcmp(&tz->devices, &devices, - sizeof(struct acpi_handle_list))) { - memcpy(&tz->devices, &devices, - sizeof(struct acpi_handle_list)); + if (ACPI_SUCCESS(status) + && memcmp(&tz->devices, &devices, sizeof(devices))) { + tz->devices = devices; ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device"); } } @@ -769,7 +753,6 @@ static int thermal_notify(struct thermal_zone_device *thermal, int trip, else return 0; - acpi_bus_generate_proc_event(tz->device, type, 1); acpi_bus_generate_netlink_event(tz->device->pnp.device_class, dev_name(&tz->device->dev), type, 1); @@ -850,12 +833,13 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal, if (ACPI_SUCCESS(status) && (dev == device)) { if (bind) result = thermal_zone_bind_cooling_device - (thermal, -1, cdev, - THERMAL_NO_LIMIT, + (thermal, THERMAL_TRIPS_NONE, + cdev, THERMAL_NO_LIMIT, THERMAL_NO_LIMIT); else result = thermal_zone_unbind_cooling_device - (thermal, -1, cdev); + (thermal, THERMAL_TRIPS_NONE, + cdev); if (result) goto failed; } @@ -980,14 +964,12 @@ static void acpi_thermal_notify(struct acpi_device *device, u32 event) case ACPI_THERMAL_NOTIFY_THRESHOLDS: acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_THRESHOLDS); acpi_thermal_check(tz); - acpi_bus_generate_proc_event(device, event, 0); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, 0); break; case ACPI_THERMAL_NOTIFY_DEVICES: acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_DEVICES); acpi_thermal_check(tz); - acpi_bus_generate_proc_event(device, event, 0); acpi_bus_generate_netlink_event(device->pnp.device_class, dev_name(&device->dev), event, 0); break; @@ -1101,8 +1083,6 @@ static int acpi_thermal_add(struct acpi_device *device) strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS); device->driver_data = tz; - mutex_init(&tz->lock); - result = acpi_thermal_get_info(tz); if (result) @@ -1135,7 +1115,6 @@ static int acpi_thermal_remove(struct acpi_device *device) tz = acpi_driver_data(device); acpi_thermal_unregister_thermal_zone(tz); - mutex_destroy(&tz->lock); kfree(tz); return 0; } diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 744371304313..552248b0005b 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -495,3 +495,73 @@ acpi_handle_printk(const char *level, acpi_handle handle, const char *fmt, ...) kfree(buffer.pointer); } EXPORT_SYMBOL(acpi_handle_printk); + +/** + * acpi_has_method: Check whether @handle has a method named @name + * @handle: ACPI device handle + * @name: name of object or method + * + * Check whether @handle has a method named @name. + */ +bool acpi_has_method(acpi_handle handle, char *name) +{ + acpi_handle tmp; + + return ACPI_SUCCESS(acpi_get_handle(handle, name, &tmp)); +} +EXPORT_SYMBOL(acpi_has_method); + +acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, + u64 arg) +{ + union acpi_object obj = { .type = ACPI_TYPE_INTEGER }; + struct acpi_object_list arg_list = { .count = 1, .pointer = &obj, }; + + obj.integer.value = arg; + + return acpi_evaluate_object(handle, method, &arg_list, NULL); +} +EXPORT_SYMBOL(acpi_execute_simple_method); + +/** + * acpi_evaluate_ej0: Evaluate _EJ0 method for hotplug operations + * @handle: ACPI device handle + * + * Evaluate device's _EJ0 method for hotplug operations. + */ +acpi_status acpi_evaluate_ej0(acpi_handle handle) +{ + acpi_status status; + + status = acpi_execute_simple_method(handle, "_EJ0", 1); + if (status == AE_NOT_FOUND) + acpi_handle_warn(handle, "No _EJ0 support for device\n"); + else if (ACPI_FAILURE(status)) + acpi_handle_warn(handle, "Eject failed (0x%x)\n", status); + + return status; +} + +/** + * acpi_evaluate_lck: Evaluate _LCK method to lock/unlock device + * @handle: ACPI device handle + * @lock: lock device if non-zero, otherwise unlock device + * + * Evaluate device's _LCK method if present to lock/unlock device + */ +acpi_status acpi_evaluate_lck(acpi_handle handle, int lock) +{ + acpi_status status; + + status = acpi_execute_simple_method(handle, "_LCK", !!lock); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + if (lock) + acpi_handle_warn(handle, + "Locking device failed (0x%x)\n", status); + else + acpi_handle_warn(handle, + "Unlocking device failed (0x%x)\n", status); + } + + return status; +} diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 3270d3c8ba4e..aebcf6355df4 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -1,5 +1,5 @@ /* - * video.c - ACPI Video Driver ($Revision:$) + * video.c - ACPI Video Driver * * Copyright (C) 2004 Luming Yu <luming.yu@intel.com> * Copyright (C) 2004 Bruno Ducrot <ducrot@poupinou.org> @@ -88,7 +88,7 @@ module_param(allow_duplicates, bool, 0644); static bool use_bios_initial_backlight = 1; module_param(use_bios_initial_backlight, bool, 0644); -static int register_count = 0; +static int register_count; static int acpi_video_bus_add(struct acpi_device *device); static int acpi_video_bus_remove(struct acpi_device *device); static void acpi_video_bus_notify(struct acpi_device *device, u32 event); @@ -118,26 +118,26 @@ struct acpi_video_bus_flags { }; struct acpi_video_bus_cap { - u8 _DOS:1; /*Enable/Disable output switching */ - u8 _DOD:1; /*Enumerate all devices attached to display adapter */ - u8 _ROM:1; /*Get ROM Data */ - u8 _GPD:1; /*Get POST Device */ - u8 _SPD:1; /*Set POST Device */ - u8 _VPO:1; /*Video POST Options */ + u8 _DOS:1; /* Enable/Disable output switching */ + u8 _DOD:1; /* Enumerate all devices attached to display adapter */ + u8 _ROM:1; /* Get ROM Data */ + u8 _GPD:1; /* Get POST Device */ + u8 _SPD:1; /* Set POST Device */ + u8 _VPO:1; /* Video POST Options */ u8 reserved:2; }; struct acpi_video_device_attrib { u32 display_index:4; /* A zero-based instance of the Display */ - u32 display_port_attachment:4; /*This field differentiates the display type */ - u32 display_type:4; /*Describe the specific type in use */ - u32 vendor_specific:4; /*Chipset Vendor Specific */ - u32 bios_can_detect:1; /*BIOS can detect the device */ - u32 depend_on_vga:1; /*Non-VGA output device whose power is related to + u32 display_port_attachment:4; /* This field differentiates the display type */ + u32 display_type:4; /* Describe the specific type in use */ + u32 vendor_specific:4; /* Chipset Vendor Specific */ + u32 bios_can_detect:1; /* BIOS can detect the device */ + u32 depend_on_vga:1; /* Non-VGA output device whose power is related to the VGA device. */ - u32 pipe_id:3; /*For VGA multiple-head devices. */ - u32 reserved:10; /*Must be 0 */ - u32 device_id_scheme:1; /*Device ID Scheme */ + u32 pipe_id:3; /* For VGA multiple-head devices. */ + u32 reserved:10; /* Must be 0 */ + u32 device_id_scheme:1; /* Device ID Scheme */ }; struct acpi_video_enumerated_device { @@ -174,19 +174,17 @@ struct acpi_video_device_flags { }; struct acpi_video_device_cap { - u8 _ADR:1; /*Return the unique ID */ - u8 _BCL:1; /*Query list of brightness control levels supported */ - u8 _BCM:1; /*Set the brightness level */ + u8 _ADR:1; /* Return the unique ID */ + u8 _BCL:1; /* Query list of brightness control levels supported */ + u8 _BCM:1; /* Set the brightness level */ u8 _BQC:1; /* Get current brightness level */ u8 _BCQ:1; /* Some buggy BIOS uses _BCQ instead of _BQC */ - u8 _DDC:1; /*Return the EDID for this device */ + u8 _DDC:1; /* Return the EDID for this device */ }; struct acpi_video_brightness_flags { u8 _BCL_no_ac_battery_levels:1; /* no AC/Battery levels in _BCL */ - u8 _BCL_reversed:1; /* _BCL package is in a reversed order*/ - u8 _BCL_use_index:1; /* levels in _BCL are index values */ - u8 _BCM_use_index:1; /* input of _BCM is an index value */ + u8 _BCL_reversed:1; /* _BCL package is in a reversed order */ u8 _BQC_use_index:1; /* _BQC returns an index value */ }; @@ -231,21 +229,22 @@ static int acpi_video_get_next_level(struct acpi_video_device *device, static int acpi_video_switch_brightness(struct acpi_video_device *device, int event); -/*backlight device sysfs support*/ +/* backlight device sysfs support */ static int acpi_video_get_brightness(struct backlight_device *bd) { unsigned long long cur_level; int i; - struct acpi_video_device *vd = - (struct acpi_video_device *)bl_get_data(bd); + struct acpi_video_device *vd = bl_get_data(bd); if (acpi_video_device_lcd_get_level_current(vd, &cur_level, false)) return -EINVAL; for (i = 2; i < vd->brightness->count; i++) { if (vd->brightness->levels[i] == cur_level) - /* The first two entries are special - see page 575 - of the ACPI spec 3.0 */ - return i-2; + /* + * The first two entries are special - see page 575 + * of the ACPI spec 3.0 + */ + return i - 2; } return 0; } @@ -253,8 +252,7 @@ static int acpi_video_get_brightness(struct backlight_device *bd) static int acpi_video_set_brightness(struct backlight_device *bd) { int request_level = bd->props.brightness + 2; - struct acpi_video_device *vd = - (struct acpi_video_device *)bl_get_data(bd); + struct acpi_video_device *vd = bl_get_data(bd); return acpi_video_device_lcd_set_level(vd, vd->brightness->levels[request_level]); @@ -302,11 +300,11 @@ video_set_cur_state(struct thermal_cooling_device *cooling_dev, unsigned long st struct acpi_video_device *video = acpi_driver_data(device); int level; - if ( state >= video->brightness->count - 2) + if (state >= video->brightness->count - 2) return -EINVAL; state = video->brightness->count - state; - level = video->brightness->levels[state -1]; + level = video->brightness->levels[state - 1]; return acpi_video_device_lcd_set_level(video, level); } @@ -316,9 +314,11 @@ static const struct thermal_cooling_device_ops video_cooling_ops = { .set_cur_state = video_set_cur_state, }; -/* -------------------------------------------------------------------------- - Video Management - -------------------------------------------------------------------------- */ +/* + * -------------------------------------------------------------------------- + * Video Management + * -------------------------------------------------------------------------- + */ static int acpi_video_device_lcd_query_levels(struct acpi_video_device *device, @@ -345,7 +345,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device, return 0; - err: +err: kfree(buffer.pointer); return status; @@ -355,14 +355,10 @@ static int acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level) { int status; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; int state; - arg0.integer.value = level; - - status = acpi_evaluate_object(device->dev->handle, "_BCM", - &args, NULL); + status = acpi_execute_simple_method(device->dev->handle, + "_BCM", level); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, "Evaluating _BCM failed")); return -EIO; @@ -546,7 +542,7 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, if (device->brightness->levels[i] == *level) { device->brightness->curr = *level; return 0; - } + } /* * BQC returned an invalid level. * Stop using it. @@ -556,7 +552,8 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, buf)); device->cap._BQC = device->cap._BCQ = 0; } else { - /* Fixme: + /* + * Fixme: * should we return an error or ignore this failure? * dev->brightness->curr is a cached value which stores * the correct current backlight level in most cases. @@ -615,8 +612,8 @@ acpi_video_device_EDID(struct acpi_video_device *device, /* * Arg: - * video : video bus device pointer - * bios_flag : + * video : video bus device pointer + * bios_flag : * 0. The system BIOS should NOT automatically switch(toggle) * the active display output. * 1. The system BIOS should automatically switch (toggle) the @@ -628,9 +625,9 @@ acpi_video_device_EDID(struct acpi_video_device *device, * lcd_flag : * 0. The system BIOS should automatically control the brightness level * of the LCD when the power changes from AC to DC - * 1. The system BIOS should NOT automatically control the brightness + * 1. The system BIOS should NOT automatically control the brightness * level of the LCD when the power changes from AC to DC. - * Return Value: + * Return Value: * -EINVAL wrong arg. */ @@ -638,18 +635,15 @@ static int acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) { acpi_status status; - union acpi_object arg0 = { ACPI_TYPE_INTEGER }; - struct acpi_object_list args = { 1, &arg0 }; if (!video->cap._DOS) return 0; if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) return -EINVAL; - arg0.integer.value = (lcd_flag << 2) | bios_flag; - video->dos_setting = arg0.integer.value; - status = acpi_evaluate_object(video->device->handle, "_DOS", - &args, NULL); + video->dos_setting = (lcd_flag << 2) | bios_flag; + status = acpi_execute_simple_method(video->device->handle, "_DOS", + (lcd_flag << 2) | bios_flag); if (ACPI_FAILURE(status)) return -EIO; @@ -717,8 +711,8 @@ static int acpi_video_bqc_quirk(struct acpi_video_device *device, /* - * Arg: - * device : video output device (LCD, CRT, ..) + * Arg: + * device : video output device (LCD, CRT, ..) * * Return Value: * Maximum brightness level @@ -806,16 +800,6 @@ acpi_video_init_brightness(struct acpi_video_device *device) br->count = count; device->brightness = br; - /* Check the input/output of _BQC/_BCL/_BCM */ - if ((max_level < 100) && (max_level <= (count - 2))) - br->flags._BCL_use_index = 1; - - /* - * _BCM is always consistent with _BCL, - * at least for all the laptops we have ever seen. - */ - br->flags._BCM_use_index = br->flags._BCL_use_index; - /* _BQC uses INDEX while _BCL uses VALUE in some laptops */ br->curr = level = max_level; @@ -877,7 +861,7 @@ out: * device : video output device (LCD, CRT, ..) * * Return Value: - * None + * None * * Find out all required AML methods defined under the output * device. @@ -885,28 +869,21 @@ out: static void acpi_video_device_find_cap(struct acpi_video_device *device) { - acpi_handle h_dummy1; - - if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) { + if (acpi_has_method(device->dev->handle, "_ADR")) device->cap._ADR = 1; - } - if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCL", &h_dummy1))) { + if (acpi_has_method(device->dev->handle, "_BCL")) device->cap._BCL = 1; - } - if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCM", &h_dummy1))) { + if (acpi_has_method(device->dev->handle, "_BCM")) device->cap._BCM = 1; - } - if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle,"_BQC",&h_dummy1))) + if (acpi_has_method(device->dev->handle, "_BQC")) { device->cap._BQC = 1; - else if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCQ", - &h_dummy1))) { + } else if (acpi_has_method(device->dev->handle, "_BCQ")) { printk(KERN_WARNING FW_BUG "_BCQ is used instead of _BQC\n"); device->cap._BCQ = 1; } - if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) { + if (acpi_has_method(device->dev->handle, "_DDC")) device->cap._DDC = 1; - } if (acpi_video_backlight_support()) { struct backlight_properties props; @@ -914,7 +891,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) acpi_handle acpi_parent; struct device *parent = NULL; int result; - static int count = 0; + static int count; char *name; result = acpi_video_init_brightness(device); @@ -983,37 +960,29 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) } /* - * Arg: - * device : video output device (VGA) + * Arg: + * device : video output device (VGA) * * Return Value: - * None + * None * * Find out all required AML methods defined under the video bus device. */ static void acpi_video_bus_find_cap(struct acpi_video_bus *video) { - acpi_handle h_dummy1; - - if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) { + if (acpi_has_method(video->device->handle, "_DOS")) video->cap._DOS = 1; - } - if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOD", &h_dummy1))) { + if (acpi_has_method(video->device->handle, "_DOD")) video->cap._DOD = 1; - } - if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_ROM", &h_dummy1))) { + if (acpi_has_method(video->device->handle, "_ROM")) video->cap._ROM = 1; - } - if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_GPD", &h_dummy1))) { + if (acpi_has_method(video->device->handle, "_GPD")) video->cap._GPD = 1; - } - if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_SPD", &h_dummy1))) { + if (acpi_has_method(video->device->handle, "_SPD")) video->cap._SPD = 1; - } - if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_VPO", &h_dummy1))) { + if (acpi_has_method(video->device->handle, "_VPO")) video->cap._VPO = 1; - } } /* @@ -1034,7 +1003,8 @@ static int acpi_video_bus_check(struct acpi_video_bus *video) return -ENODEV; pci_dev_put(dev); - /* Since there is no HID, CID and so on for VGA driver, we have + /* + * Since there is no HID, CID and so on for VGA driver, we have * to check well known required nodes. */ @@ -1064,12 +1034,14 @@ static int acpi_video_bus_check(struct acpi_video_bus *video) return status; } -/* -------------------------------------------------------------------------- - Driver Interface - -------------------------------------------------------------------------- */ +/* + * -------------------------------------------------------------------------- + * Driver Interface + * -------------------------------------------------------------------------- + */ /* device interface */ -static struct acpi_video_device_attrib* +static struct acpi_video_device_attrib * acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id) { struct acpi_video_enumerated_device *ids; @@ -1107,7 +1079,7 @@ acpi_video_bus_get_one_device(struct acpi_device *device, unsigned long long device_id; int status, device_type; struct acpi_video_device *data; - struct acpi_video_device_attrib* attribute; + struct acpi_video_device_attrib *attribute; status = acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id); @@ -1129,7 +1101,7 @@ acpi_video_bus_get_one_device(struct acpi_device *device, attribute = acpi_video_get_device_attr(video, device_id); - if((attribute != NULL) && attribute->device_id_scheme) { + if (attribute && attribute->device_id_scheme) { switch (attribute->display_type) { case ACPI_VIDEO_DISPLAY_CRT: data->flags.crt = 1; @@ -1147,24 +1119,24 @@ acpi_video_bus_get_one_device(struct acpi_device *device, data->flags.unknown = 1; break; } - if(attribute->bios_can_detect) + if (attribute->bios_can_detect) data->flags.bios = 1; } else { /* Check for legacy IDs */ device_type = acpi_video_get_device_type(video, device_id); /* Ignore bits 16 and 18-20 */ switch (device_type & 0xffe2ffff) { - case ACPI_VIDEO_DISPLAY_LEGACY_MONITOR: - data->flags.crt = 1; - break; - case ACPI_VIDEO_DISPLAY_LEGACY_PANEL: - data->flags.lcd = 1; - break; - case ACPI_VIDEO_DISPLAY_LEGACY_TV: - data->flags.tvout = 1; - break; - default: - data->flags.unknown = 1; + case ACPI_VIDEO_DISPLAY_LEGACY_MONITOR: + data->flags.crt = 1; + break; + case ACPI_VIDEO_DISPLAY_LEGACY_PANEL: + data->flags.lcd = 1; + break; + case ACPI_VIDEO_DISPLAY_LEGACY_TV: + data->flags.tvout = 1; + break; + default: + data->flags.unknown = 1; } } @@ -1187,12 +1159,12 @@ acpi_video_bus_get_one_device(struct acpi_device *device, /* * Arg: - * video : video bus device + * video : video bus device * * Return: - * none - * - * Enumerate the video device list of the video bus, + * none + * + * Enumerate the video device list of the video bus, * bind the ids with the corresponding video devices * under the video bus. */ @@ -1211,13 +1183,13 @@ static void acpi_video_device_rebind(struct acpi_video_bus *video) /* * Arg: - * video : video bus device - * device : video output device under the video - * bus + * video : video bus device + * device : video output device under the video + * bus * * Return: - * none - * + * none + * * Bind the ids with the corresponding video devices * under the video bus. */ @@ -1240,11 +1212,11 @@ acpi_video_device_bind(struct acpi_video_bus *video, /* * Arg: - * video : video bus device + * video : video bus device * * Return: - * < 0 : error - * + * < 0 : error + * * Call _DOD to enumerate all devices attached to display adapter * */ @@ -1305,7 +1277,7 @@ static int acpi_video_device_enumerate(struct acpi_video_bus *video) video->attached_array = active_list; video->attached_count = count; - out: +out: kfree(buffer.pointer); return status; } @@ -1572,7 +1544,6 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event) switch (event) { case ACPI_VIDEO_NOTIFY_SWITCH: /* User requested a switch, * most likely via hotkey. */ - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_SWITCHVIDEOMODE; break; @@ -1580,20 +1551,16 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event) * connector. */ acpi_video_device_enumerate(video); acpi_video_device_rebind(video); - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_SWITCHVIDEOMODE; break; case ACPI_VIDEO_NOTIFY_CYCLE: /* Cycle Display output hotkey pressed. */ - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_SWITCHVIDEOMODE; break; case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: /* Next Display output hotkey pressed. */ - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_VIDEO_NEXT; break; case ACPI_VIDEO_NOTIFY_PREV_OUTPUT: /* previous Display output hotkey pressed. */ - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_VIDEO_PREV; break; @@ -1636,31 +1603,26 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */ if (brightness_switch_enabled) acpi_video_switch_brightness(video_device, event); - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_BRIGHTNESS_CYCLE; break; case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS: /* Increase brightness */ if (brightness_switch_enabled) acpi_video_switch_brightness(video_device, event); - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_BRIGHTNESSUP; break; case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS: /* Decrease brightness */ if (brightness_switch_enabled) acpi_video_switch_brightness(video_device, event); - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_BRIGHTNESSDOWN; break; case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightness */ if (brightness_switch_enabled) acpi_video_switch_brightness(video_device, event); - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_BRIGHTNESS_ZERO; break; case ACPI_VIDEO_NOTIFY_DISPLAY_OFF: /* display device off */ if (brightness_switch_enabled) acpi_video_switch_brightness(video_device, event); - acpi_bus_generate_proc_event(device, event, 0); keycode = KEY_DISPLAY_OFF; break; default: @@ -1760,7 +1722,7 @@ static int acpi_video_bus_add(struct acpi_device *device) if (!strcmp(device->pnp.bus_id, "VID")) { if (instance) device->pnp.bus_id[3] = '0' + instance; - instance ++; + instance++; } /* a hack to fix the duplicate name "VGA" problem on Pa 3553 */ if (!strcmp(device->pnp.bus_id, "VGA")) { diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index c3397748ba46..940edbf2fe8f 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -53,14 +53,13 @@ acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context, void **retyurn_value) { long *cap = context; - acpi_handle h_dummy; - if (ACPI_SUCCESS(acpi_get_handle(handle, "_BCM", &h_dummy)) && - ACPI_SUCCESS(acpi_get_handle(handle, "_BCL", &h_dummy))) { + if (acpi_has_method(handle, "_BCM") && + acpi_has_method(handle, "_BCL")) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found generic backlight " "support\n")); *cap |= ACPI_VIDEO_BACKLIGHT; - if (ACPI_FAILURE(acpi_get_handle(handle, "_BQC", &h_dummy))) + if (!acpi_has_method(handle, "_BQC")) printk(KERN_WARNING FW_BUG PREFIX "No _BQC method, " "cannot determine initial brightness\n"); /* We have backlight support, no need to scan further */ @@ -79,22 +78,20 @@ acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context, */ long acpi_is_video_device(acpi_handle handle) { - acpi_handle h_dummy; long video_caps = 0; /* Is this device able to support video switching ? */ - if (ACPI_SUCCESS(acpi_get_handle(handle, "_DOD", &h_dummy)) || - ACPI_SUCCESS(acpi_get_handle(handle, "_DOS", &h_dummy))) + if (acpi_has_method(handle, "_DOD") || acpi_has_method(handle, "_DOS")) video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING; /* Is this device able to retrieve a video ROM ? */ - if (ACPI_SUCCESS(acpi_get_handle(handle, "_ROM", &h_dummy))) + if (acpi_has_method(handle, "_ROM")) video_caps |= ACPI_VIDEO_ROM_AVAILABLE; /* Is this device able to configure which video head to be POSTed ? */ - if (ACPI_SUCCESS(acpi_get_handle(handle, "_VPO", &h_dummy)) && - ACPI_SUCCESS(acpi_get_handle(handle, "_GPD", &h_dummy)) && - ACPI_SUCCESS(acpi_get_handle(handle, "_SPD", &h_dummy))) + if (acpi_has_method(handle, "_VPO") && + acpi_has_method(handle, "_GPD") && + acpi_has_method(handle, "_SPD")) video_caps |= ACPI_VIDEO_DEVICE_POSTING; /* Only check for backlight functionality if one of the above hit. */ |