Merge branch 'acpi-assorted'
* acpi-assorted: ACPI / EC: Add HP Folio 13 to ec_dmi_table in order to skip DSDT scan ACPI: Add CMOS RTC Operation Region handler support ACPI: Remove unused flags in acpi_device_flags ACPI: Remove useless initializers ACPI / battery: Make sure all spaces are in correct places ACPI: add _STA evaluation at do_acpi_find_child() ACPI / EC: access user space with get_user()/put_user()
This commit is contained in:
Rafael J. Wysocki
Коммит
bdc8f09685
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@ -44,6 +44,7 @@ acpi-y += acpi_platform.o
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acpi-y += power.o
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acpi-y += event.o
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acpi-y += sysfs.o
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acpi-$(CONFIG_X86) += acpi_cmos_rtc.o
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acpi-$(CONFIG_DEBUG_FS) += debugfs.o
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acpi-$(CONFIG_ACPI_NUMA) += numa.o
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acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
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@ -0,0 +1,92 @@
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/*
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* ACPI support for CMOS RTC Address Space access
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*
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* Copyright (C) 2013, Intel Corporation
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* Authors: Lan Tianyu <tianyu.lan@intel.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/acpi.h>
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#include <linux/device.h>
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#include <linux/err.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <asm-generic/rtc.h>
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#include "internal.h"
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#define PREFIX "ACPI: "
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ACPI_MODULE_NAME("cmos rtc");
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static const struct acpi_device_id acpi_cmos_rtc_ids[] = {
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{ "PNP0B00" },
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{ "PNP0B01" },
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{ "PNP0B02" },
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{}
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};
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static acpi_status
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acpi_cmos_rtc_space_handler(u32 function, acpi_physical_address address,
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u32 bits, u64 *value64,
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void *handler_context, void *region_context)
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{
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int i;
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u8 *value = (u8 *)&value64;
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if (address > 0xff || !value64)
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return AE_BAD_PARAMETER;
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if (function != ACPI_WRITE && function != ACPI_READ)
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return AE_BAD_PARAMETER;
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spin_lock_irq(&rtc_lock);
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for (i = 0; i < DIV_ROUND_UP(bits, 8); ++i, ++address, ++value)
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if (function == ACPI_READ)
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*value = CMOS_READ(address);
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else
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CMOS_WRITE(*value, address);
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spin_unlock_irq(&rtc_lock);
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return AE_OK;
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}
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static int acpi_install_cmos_rtc_space_handler(struct acpi_device *adev,
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const struct acpi_device_id *id)
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{
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acpi_status status;
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status = acpi_install_address_space_handler(adev->handle,
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ACPI_ADR_SPACE_CMOS,
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&acpi_cmos_rtc_space_handler,
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NULL, NULL);
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if (ACPI_FAILURE(status)) {
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pr_err(PREFIX "Error installing CMOS-RTC region handler\n");
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return -ENODEV;
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}
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return 0;
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}
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static void acpi_remove_cmos_rtc_space_handler(struct acpi_device *adev)
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{
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if (ACPI_FAILURE(acpi_remove_address_space_handler(adev->handle,
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ACPI_ADR_SPACE_CMOS, &acpi_cmos_rtc_space_handler)))
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pr_err(PREFIX "Error removing CMOS-RTC region handler\n");
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}
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static struct acpi_scan_handler cmos_rtc_handler = {
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.ids = acpi_cmos_rtc_ids,
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.attach = acpi_install_cmos_rtc_space_handler,
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.detach = acpi_remove_cmos_rtc_space_handler,
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};
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void __init acpi_cmos_rtc_init(void)
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{
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acpi_scan_add_handler(&cmos_rtc_handler);
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}
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@ -425,7 +425,7 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
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{
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int result = -EFAULT;
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acpi_status status = 0;
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char *name = test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags)?
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char *name = test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags) ?
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"_BIX" : "_BIF";
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struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
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@ -661,11 +661,11 @@ static void find_battery(const struct dmi_header *dm, void *private)
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static void acpi_battery_quirks(struct acpi_battery *battery)
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{
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if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags))
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return ;
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return;
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if (battery->full_charge_capacity == 100 &&
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battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN &&
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battery->capacity_now >=0 && battery->capacity_now <= 100) {
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if (battery->full_charge_capacity == 100 &&
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battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN &&
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battery->capacity_now >= 0 && battery->capacity_now <= 100) {
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set_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags);
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battery->full_charge_capacity = battery->design_capacity;
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battery->capacity_now = (battery->capacity_now *
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@ -673,7 +673,7 @@ static void acpi_battery_quirks(struct acpi_battery *battery)
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}
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if (test_bit(ACPI_BATTERY_QUIRK_THINKPAD_MAH, &battery->flags))
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return ;
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return;
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if (battery->power_unit && dmi_name_in_vendors("LENOVO")) {
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const char *s;
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@ -761,7 +761,7 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
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goto end;
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seq_printf(seq, "present: %s\n",
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acpi_battery_present(battery)?"yes":"no");
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acpi_battery_present(battery) ? "yes" : "no");
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if (!acpi_battery_present(battery))
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goto end;
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if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
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@ -817,12 +817,12 @@ static int acpi_battery_print_state(struct seq_file *seq, int result)
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goto end;
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seq_printf(seq, "present: %s\n",
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acpi_battery_present(battery)?"yes":"no");
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acpi_battery_present(battery) ? "yes" : "no");
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if (!acpi_battery_present(battery))
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goto end;
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seq_printf(seq, "capacity state: %s\n",
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(battery->state & 0x04)?"critical":"ok");
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(battery->state & 0x04) ? "critical" : "ok");
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if ((battery->state & 0x01) && (battery->state & 0x02))
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seq_printf(seq,
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"charging state: charging/discharging\n");
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@ -91,8 +91,7 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
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int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device)
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{
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acpi_status status = AE_OK;
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acpi_status status;
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if (!device)
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return -EINVAL;
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@ -162,7 +161,7 @@ EXPORT_SYMBOL(acpi_bus_private_data_handler);
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int acpi_bus_get_private_data(acpi_handle handle, void **data)
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{
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acpi_status status = AE_OK;
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acpi_status status;
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if (!*data)
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return -EINVAL;
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@ -361,7 +360,7 @@ extern int event_is_open;
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int acpi_bus_generate_proc_event4(const char *device_class, const char *bus_id, u8 type, int data)
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{
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struct acpi_bus_event *event;
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unsigned long flags = 0;
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unsigned long flags;
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/* drop event on the floor if no one's listening */
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if (!event_is_open)
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@ -400,7 +399,7 @@ EXPORT_SYMBOL(acpi_bus_generate_proc_event);
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int acpi_bus_receive_event(struct acpi_bus_event *event)
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{
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unsigned long flags = 0;
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unsigned long flags;
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struct acpi_bus_event *entry = NULL;
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DECLARE_WAITQUEUE(wait, current);
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@ -593,7 +592,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
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static int __init acpi_bus_init_irq(void)
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{
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acpi_status status = AE_OK;
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acpi_status status;
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union acpi_object arg = { ACPI_TYPE_INTEGER };
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struct acpi_object_list arg_list = { 1, &arg };
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char *message = NULL;
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@ -640,7 +639,7 @@ u8 acpi_gbl_permanent_mmap;
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void __init acpi_early_init(void)
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{
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acpi_status status = AE_OK;
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acpi_status status;
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if (acpi_disabled)
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return;
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@ -714,8 +713,8 @@ void __init acpi_early_init(void)
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static int __init acpi_bus_init(void)
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{
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int result = 0;
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acpi_status status = AE_OK;
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int result;
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acpi_status status;
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extern acpi_status acpi_os_initialize1(void);
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acpi_os_initialize1();
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@ -983,6 +983,10 @@ static struct dmi_system_id __initdata ec_dmi_table[] = {
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ec_enlarge_storm_threshold, "CLEVO hardware", {
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DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."),
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DMI_MATCH(DMI_PRODUCT_NAME, "M720T/M730T"),}, NULL},
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{
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ec_skip_dsdt_scan, "HP Folio 13", {
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DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
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DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13"),}, NULL},
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{},
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};
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@ -12,6 +12,7 @@
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#include <linux/acpi.h>
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#include <linux/debugfs.h>
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#include <linux/module.h>
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#include <linux/uaccess.h>
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#include "internal.h"
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MODULE_AUTHOR("Thomas Renninger <trenn@suse.de>");
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@ -34,7 +35,6 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf,
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* struct acpi_ec *ec = ((struct seq_file *)f->private_data)->private;
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*/
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unsigned int size = EC_SPACE_SIZE;
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u8 *data = (u8 *) buf;
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loff_t init_off = *off;
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int err = 0;
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@ -47,9 +47,15 @@ static ssize_t acpi_ec_read_io(struct file *f, char __user *buf,
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size = count;
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while (size) {
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err = ec_read(*off, &data[*off - init_off]);
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u8 byte_read;
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err = ec_read(*off, &byte_read);
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if (err)
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return err;
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if (put_user(byte_read, buf + *off - init_off)) {
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if (*off - init_off)
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return *off - init_off; /* partial read */
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return -EFAULT;
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}
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*off += 1;
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size--;
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}
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@ -65,7 +71,6 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf,
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unsigned int size = count;
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loff_t init_off = *off;
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u8 *data = (u8 *) buf;
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int err = 0;
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if (*off >= EC_SPACE_SIZE)
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@ -76,7 +81,12 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf,
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}
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while (size) {
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u8 byte_write = data[*off - init_off];
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u8 byte_write;
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if (get_user(byte_write, buf + *off - init_off)) {
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if (*off - init_off)
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return *off - init_off; /* partial write */
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return -EFAULT;
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}
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err = ec_write(*off, byte_write);
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if (err)
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return err;
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@ -81,13 +81,15 @@ static struct acpi_bus_type *acpi_get_bus_type(struct device *dev)
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static acpi_status do_acpi_find_child(acpi_handle handle, u32 lvl_not_used,
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void *addr_p, void **ret_p)
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{
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unsigned long long addr;
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unsigned long long addr, sta;
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acpi_status status;
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status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &addr);
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if (ACPI_SUCCESS(status) && addr == *((u64 *)addr_p)) {
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*ret_p = handle;
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return AE_CTRL_TERMINATE;
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status = acpi_bus_get_status_handle(handle, &sta);
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if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_ENABLED))
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return AE_CTRL_TERMINATE;
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}
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return AE_OK;
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}
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@ -51,6 +51,11 @@ void acpi_memory_hotplug_init(void);
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#else
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static inline void acpi_memory_hotplug_init(void) {}
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#endif
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#ifdef CONFIG_X86
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void acpi_cmos_rtc_init(void);
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#else
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static inline void acpi_cmos_rtc_init(void) {}
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#endif
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extern bool acpi_force_hot_remove;
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@ -2132,6 +2132,7 @@ int __init acpi_scan_init(void)
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acpi_processor_init();
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acpi_platform_init();
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acpi_lpss_init();
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acpi_cmos_rtc_init();
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acpi_container_init();
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acpi_memory_hotplug_init();
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acpi_dock_init();
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@ -156,12 +156,10 @@ struct acpi_device_flags {
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u32 dynamic_status:1;
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u32 removable:1;
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u32 ejectable:1;
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u32 suprise_removal_ok:1;
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u32 power_manageable:1;
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u32 performance_manageable:1;
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u32 eject_pending:1;
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u32 match_driver:1;
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u32 reserved:24;
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u32 reserved:26;
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};
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/* File System */
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