diff options
Diffstat (limited to 'drivers/platform/x86/hp-wmi.c')
| -rw-r--r-- | drivers/platform/x86/hp-wmi.c | 1004 |
1 files changed, 0 insertions, 1004 deletions
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c deleted file mode 100644 index 1762f335bac9..000000000000 --- a/drivers/platform/x86/hp-wmi.c +++ /dev/null @@ -1,1004 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * HP WMI hotkeys - * - * Copyright (C) 2008 Red Hat <mjg@redhat.com> - * Copyright (C) 2010, 2011 Anssi Hannula <anssi.hannula@iki.fi> - * - * Portions based on wistron_btns.c: - * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz> - * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org> - * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru> - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/types.h> -#include <linux/input.h> -#include <linux/input/sparse-keymap.h> -#include <linux/platform_device.h> -#include <linux/acpi.h> -#include <linux/rfkill.h> -#include <linux/string.h> - -MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>"); -MODULE_DESCRIPTION("HP laptop WMI hotkeys driver"); -MODULE_LICENSE("GPL"); - -MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C"); -MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); - -#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C" -#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4" - -enum hp_wmi_radio { - HPWMI_WIFI = 0x0, - HPWMI_BLUETOOTH = 0x1, - HPWMI_WWAN = 0x2, - HPWMI_GPS = 0x3, -}; - -enum hp_wmi_event_ids { - HPWMI_DOCK_EVENT = 0x01, - HPWMI_PARK_HDD = 0x02, - HPWMI_SMART_ADAPTER = 0x03, - HPWMI_BEZEL_BUTTON = 0x04, - HPWMI_WIRELESS = 0x05, - HPWMI_CPU_BATTERY_THROTTLE = 0x06, - HPWMI_LOCK_SWITCH = 0x07, - HPWMI_LID_SWITCH = 0x08, - HPWMI_SCREEN_ROTATION = 0x09, - HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A, - HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B, - HPWMI_PROXIMITY_SENSOR = 0x0C, - HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D, - HPWMI_PEAKSHIFT_PERIOD = 0x0F, - HPWMI_BATTERY_CHARGE_PERIOD = 0x10, -}; - -struct bios_args { - u32 signature; - u32 command; - u32 commandtype; - u32 datasize; - u8 data[128]; -}; - -enum hp_wmi_commandtype { - HPWMI_DISPLAY_QUERY = 0x01, - HPWMI_HDDTEMP_QUERY = 0x02, - HPWMI_ALS_QUERY = 0x03, - HPWMI_HARDWARE_QUERY = 0x04, - HPWMI_WIRELESS_QUERY = 0x05, - HPWMI_BATTERY_QUERY = 0x07, - HPWMI_BIOS_QUERY = 0x09, - HPWMI_FEATURE_QUERY = 0x0b, - HPWMI_HOTKEY_QUERY = 0x0c, - HPWMI_FEATURE2_QUERY = 0x0d, - HPWMI_WIRELESS2_QUERY = 0x1b, - HPWMI_POSTCODEERROR_QUERY = 0x2a, -}; - -enum hp_wmi_command { - HPWMI_READ = 0x01, - HPWMI_WRITE = 0x02, - HPWMI_ODM = 0x03, -}; - -enum hp_wmi_hardware_mask { - HPWMI_DOCK_MASK = 0x01, - HPWMI_TABLET_MASK = 0x04, -}; - -struct bios_return { - u32 sigpass; - u32 return_code; -}; - -enum hp_return_value { - HPWMI_RET_WRONG_SIGNATURE = 0x02, - HPWMI_RET_UNKNOWN_COMMAND = 0x03, - HPWMI_RET_UNKNOWN_CMDTYPE = 0x04, - HPWMI_RET_INVALID_PARAMETERS = 0x05, -}; - -enum hp_wireless2_bits { - HPWMI_POWER_STATE = 0x01, - HPWMI_POWER_SOFT = 0x02, - HPWMI_POWER_BIOS = 0x04, - HPWMI_POWER_HARD = 0x08, - HPWMI_POWER_FW_OR_HW = HPWMI_POWER_BIOS | HPWMI_POWER_HARD, -}; - -#define IS_HWBLOCKED(x) ((x & HPWMI_POWER_FW_OR_HW) != HPWMI_POWER_FW_OR_HW) -#define IS_SWBLOCKED(x) !(x & HPWMI_POWER_SOFT) - -struct bios_rfkill2_device_state { - u8 radio_type; - u8 bus_type; - u16 vendor_id; - u16 product_id; - u16 subsys_vendor_id; - u16 subsys_product_id; - u8 rfkill_id; - u8 power; - u8 unknown[4]; -}; - -/* 7 devices fit into the 128 byte buffer */ -#define HPWMI_MAX_RFKILL2_DEVICES 7 - -struct bios_rfkill2_state { - u8 unknown[7]; - u8 count; - u8 pad[8]; - struct bios_rfkill2_device_state device[HPWMI_MAX_RFKILL2_DEVICES]; -}; - -static const struct key_entry hp_wmi_keymap[] = { - { KE_KEY, 0x02, { KEY_BRIGHTNESSUP } }, - { KE_KEY, 0x03, { KEY_BRIGHTNESSDOWN } }, - { KE_KEY, 0x20e6, { KEY_PROG1 } }, - { KE_KEY, 0x20e8, { KEY_MEDIA } }, - { KE_KEY, 0x2142, { KEY_MEDIA } }, - { KE_KEY, 0x213b, { KEY_INFO } }, - { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } }, - { KE_KEY, 0x216a, { KEY_SETUP } }, - { KE_KEY, 0x231b, { KEY_HELP } }, - { KE_END, 0 } -}; - -static struct input_dev *hp_wmi_input_dev; -static struct platform_device *hp_wmi_platform_dev; - -static struct rfkill *wifi_rfkill; -static struct rfkill *bluetooth_rfkill; -static struct rfkill *wwan_rfkill; - -struct rfkill2_device { - u8 id; - int num; - struct rfkill *rfkill; -}; - -static int rfkill2_count; -static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES]; - -/* map output size to the corresponding WMI method id */ -static inline int encode_outsize_for_pvsz(int outsize) -{ - if (outsize > 4096) - return -EINVAL; - if (outsize > 1024) - return 5; - if (outsize > 128) - return 4; - if (outsize > 4) - return 3; - if (outsize > 0) - return 2; - return 1; -} - -/* - * hp_wmi_perform_query - * - * query: The commandtype (enum hp_wmi_commandtype) - * write: The command (enum hp_wmi_command) - * buffer: Buffer used as input and/or output - * insize: Size of input buffer - * outsize: Size of output buffer - * - * returns zero on success - * an HP WMI query specific error code (which is positive) - * -EINVAL if the query was not successful at all - * -EINVAL if the output buffer size exceeds buffersize - * - * Note: The buffersize must at least be the maximum of the input and output - * size. E.g. Battery info query is defined to have 1 byte input - * and 128 byte output. The caller would do: - * buffer = kzalloc(128, GFP_KERNEL); - * ret = hp_wmi_perform_query(HPWMI_BATTERY_QUERY, HPWMI_READ, buffer, 1, 128) - */ -static int hp_wmi_perform_query(int query, enum hp_wmi_command command, - void *buffer, int insize, int outsize) -{ - int mid; - struct bios_return *bios_return; - int actual_outsize; - union acpi_object *obj; - struct bios_args args = { - .signature = 0x55434553, - .command = command, - .commandtype = query, - .datasize = insize, - .data = { 0 }, - }; - struct acpi_buffer input = { sizeof(struct bios_args), &args }; - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - int ret = 0; - - mid = encode_outsize_for_pvsz(outsize); - if (WARN_ON(mid < 0)) - return mid; - - if (WARN_ON(insize > sizeof(args.data))) - return -EINVAL; - memcpy(&args.data[0], buffer, insize); - - wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output); - - obj = output.pointer; - - if (!obj) - return -EINVAL; - - if (obj->type != ACPI_TYPE_BUFFER) { - ret = -EINVAL; - goto out_free; - } - - bios_return = (struct bios_return *)obj->buffer.pointer; - ret = bios_return->return_code; - - if (ret) { - if (ret != HPWMI_RET_UNKNOWN_CMDTYPE) - pr_warn("query 0x%x returned error 0x%x\n", query, ret); - goto out_free; - } - - /* Ignore output data of zero size */ - if (!outsize) - goto out_free; - - actual_outsize = min(outsize, (int)(obj->buffer.length - sizeof(*bios_return))); - memcpy(buffer, obj->buffer.pointer + sizeof(*bios_return), actual_outsize); - memset(buffer + actual_outsize, 0, outsize - actual_outsize); - -out_free: - kfree(obj); - return ret; -} - -static int hp_wmi_read_int(int query) -{ - int val = 0, ret; - - ret = hp_wmi_perform_query(query, HPWMI_READ, &val, - sizeof(val), sizeof(val)); - - if (ret) - return ret < 0 ? ret : -EINVAL; - - return val; -} - -static int hp_wmi_hw_state(int mask) -{ - int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY); - - if (state < 0) - return state; - - return !!(state & mask); -} - -static int __init hp_wmi_bios_2008_later(void) -{ - int state = 0; - int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); - if (!ret) - return 1; - - return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO; -} - -static int __init hp_wmi_bios_2009_later(void) -{ - u8 state[128]; - int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); - if (!ret) - return 1; - - return (ret == HPWMI_RET_UNKNOWN_CMDTYPE) ? 0 : -ENXIO; -} - -static int __init hp_wmi_enable_hotkeys(void) -{ - int value = 0x6e; - int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, HPWMI_WRITE, &value, - sizeof(value), 0); - - return ret <= 0 ? ret : -EINVAL; -} - -static int hp_wmi_set_block(void *data, bool blocked) -{ - enum hp_wmi_radio r = (enum hp_wmi_radio) data; - int query = BIT(r + 8) | ((!blocked) << r); - int ret; - - ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, - &query, sizeof(query), 0); - - return ret <= 0 ? ret : -EINVAL; -} - -static const struct rfkill_ops hp_wmi_rfkill_ops = { - .set_block = hp_wmi_set_block, -}; - -static bool hp_wmi_get_sw_state(enum hp_wmi_radio r) -{ - int mask = 0x200 << (r * 8); - - int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); - - /* TBD: Pass error */ - WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY"); - - return !(wireless & mask); -} - -static bool hp_wmi_get_hw_state(enum hp_wmi_radio r) -{ - int mask = 0x800 << (r * 8); - - int wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); - - /* TBD: Pass error */ - WARN_ONCE(wireless < 0, "error executing HPWMI_WIRELESS_QUERY"); - - return !(wireless & mask); -} - -static int hp_wmi_rfkill2_set_block(void *data, bool blocked) -{ - int rfkill_id = (int)(long)data; - char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked }; - int ret; - - ret = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_WRITE, - buffer, sizeof(buffer), 0); - - return ret <= 0 ? ret : -EINVAL; -} - -static const struct rfkill_ops hp_wmi_rfkill2_ops = { - .set_block = hp_wmi_rfkill2_set_block, -}; - -static int hp_wmi_rfkill2_refresh(void) -{ - struct bios_rfkill2_state state; - int err, i; - - err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); - if (err) - return err; - - for (i = 0; i < rfkill2_count; i++) { - int num = rfkill2[i].num; - struct bios_rfkill2_device_state *devstate; - devstate = &state.device[num]; - - if (num >= state.count || - devstate->rfkill_id != rfkill2[i].id) { - pr_warn("power configuration of the wireless devices unexpectedly changed\n"); - continue; - } - - rfkill_set_states(rfkill2[i].rfkill, - IS_SWBLOCKED(devstate->power), - IS_HWBLOCKED(devstate->power)); - } - - return 0; -} - -static ssize_t display_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int value = hp_wmi_read_int(HPWMI_DISPLAY_QUERY); - if (value < 0) - return value; - return sprintf(buf, "%d\n", value); -} - -static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int value = hp_wmi_read_int(HPWMI_HDDTEMP_QUERY); - if (value < 0) - return value; - return sprintf(buf, "%d\n", value); -} - -static ssize_t als_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int value = hp_wmi_read_int(HPWMI_ALS_QUERY); - if (value < 0) - return value; - return sprintf(buf, "%d\n", value); -} - -static ssize_t dock_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int value = hp_wmi_hw_state(HPWMI_DOCK_MASK); - if (value < 0) - return value; - return sprintf(buf, "%d\n", value); -} - -static ssize_t tablet_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int value = hp_wmi_hw_state(HPWMI_TABLET_MASK); - if (value < 0) - return value; - return sprintf(buf, "%d\n", value); -} - -static ssize_t postcode_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - /* Get the POST error code of previous boot failure. */ - int value = hp_wmi_read_int(HPWMI_POSTCODEERROR_QUERY); - if (value < 0) - return value; - return sprintf(buf, "0x%x\n", value); -} - -static ssize_t als_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - u32 tmp; - int ret; - - ret = kstrtou32(buf, 10, &tmp); - if (ret) - return ret; - - ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp, - sizeof(tmp), sizeof(tmp)); - if (ret) - return ret < 0 ? ret : -EINVAL; - - return count; -} - -static ssize_t postcode_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - u32 tmp = 1; - bool clear; - int ret; - - ret = kstrtobool(buf, &clear); - if (ret) - return ret; - - if (clear == false) - return -EINVAL; - - /* Clear the POST error code. It is kept until until cleared. */ - ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp, - sizeof(tmp), sizeof(tmp)); - if (ret) - return ret < 0 ? ret : -EINVAL; - - return count; -} - -static DEVICE_ATTR_RO(display); -static DEVICE_ATTR_RO(hddtemp); -static DEVICE_ATTR_RW(als); -static DEVICE_ATTR_RO(dock); -static DEVICE_ATTR_RO(tablet); -static DEVICE_ATTR_RW(postcode); - -static struct attribute *hp_wmi_attrs[] = { - &dev_attr_display.attr, - &dev_attr_hddtemp.attr, - &dev_attr_als.attr, - &dev_attr_dock.attr, - &dev_attr_tablet.attr, - &dev_attr_postcode.attr, - NULL, -}; -ATTRIBUTE_GROUPS(hp_wmi); - -static void hp_wmi_notify(u32 value, void *context) -{ - struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; - u32 event_id, event_data; - union acpi_object *obj; - acpi_status status; - u32 *location; - int key_code; - - status = wmi_get_event_data(value, &response); - if (status != AE_OK) { - pr_info("bad event status 0x%x\n", status); - return; - } - - obj = (union acpi_object *)response.pointer; - - if (!obj) - return; - if (obj->type != ACPI_TYPE_BUFFER) { - pr_info("Unknown response received %d\n", obj->type); - kfree(obj); - return; - } - - /* - * Depending on ACPI version the concatenation of id and event data - * inside _WED function will result in a 8 or 16 byte buffer. - */ - location = (u32 *)obj->buffer.pointer; - if (obj->buffer.length == 8) { - event_id = *location; - event_data = *(location + 1); - } else if (obj->buffer.length == 16) { - event_id = *location; - event_data = *(location + 2); - } else { - pr_info("Unknown buffer length %d\n", obj->buffer.length); - kfree(obj); - return; - } - kfree(obj); - - switch (event_id) { - case HPWMI_DOCK_EVENT: - if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) - input_report_switch(hp_wmi_input_dev, SW_DOCK, - hp_wmi_hw_state(HPWMI_DOCK_MASK)); - if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) - input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, - hp_wmi_hw_state(HPWMI_TABLET_MASK)); - input_sync(hp_wmi_input_dev); - break; - case HPWMI_PARK_HDD: - break; - case HPWMI_SMART_ADAPTER: - break; - case HPWMI_BEZEL_BUTTON: - key_code = hp_wmi_read_int(HPWMI_HOTKEY_QUERY); - if (key_code < 0) - break; - - if (!sparse_keymap_report_event(hp_wmi_input_dev, - key_code, 1, true)) - pr_info("Unknown key code - 0x%x\n", key_code); - break; - case HPWMI_WIRELESS: - if (rfkill2_count) { - hp_wmi_rfkill2_refresh(); - break; - } - - if (wifi_rfkill) - rfkill_set_states(wifi_rfkill, - hp_wmi_get_sw_state(HPWMI_WIFI), - hp_wmi_get_hw_state(HPWMI_WIFI)); - if (bluetooth_rfkill) - rfkill_set_states(bluetooth_rfkill, - hp_wmi_get_sw_state(HPWMI_BLUETOOTH), - hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); - if (wwan_rfkill) - rfkill_set_states(wwan_rfkill, - hp_wmi_get_sw_state(HPWMI_WWAN), - hp_wmi_get_hw_state(HPWMI_WWAN)); - break; - case HPWMI_CPU_BATTERY_THROTTLE: - pr_info("Unimplemented CPU throttle because of 3 Cell battery event detected\n"); - break; - case HPWMI_LOCK_SWITCH: - break; - case HPWMI_LID_SWITCH: - break; - case HPWMI_SCREEN_ROTATION: - break; - case HPWMI_COOLSENSE_SYSTEM_MOBILE: - break; - case HPWMI_COOLSENSE_SYSTEM_HOT: - break; - case HPWMI_PROXIMITY_SENSOR: - break; - case HPWMI_BACKLIT_KB_BRIGHTNESS: - break; - case HPWMI_PEAKSHIFT_PERIOD: - break; - case HPWMI_BATTERY_CHARGE_PERIOD: - break; - default: - pr_info("Unknown event_id - %d - 0x%x\n", event_id, event_data); - break; - } -} - -static int __init hp_wmi_input_setup(void) -{ - acpi_status status; - int err, val; - - hp_wmi_input_dev = input_allocate_device(); - if (!hp_wmi_input_dev) - return -ENOMEM; - - hp_wmi_input_dev->name = "HP WMI hotkeys"; - hp_wmi_input_dev->phys = "wmi/input0"; - hp_wmi_input_dev->id.bustype = BUS_HOST; - - __set_bit(EV_SW, hp_wmi_input_dev->evbit); - - /* Dock */ - val = hp_wmi_hw_state(HPWMI_DOCK_MASK); - if (!(val < 0)) { - __set_bit(SW_DOCK, hp_wmi_input_dev->swbit); - input_report_switch(hp_wmi_input_dev, SW_DOCK, val); - } - - /* Tablet mode */ - val = hp_wmi_hw_state(HPWMI_TABLET_MASK); - if (!(val < 0)) { - __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); - input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val); - } - - err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); - if (err) - goto err_free_dev; - - /* Set initial hardware state */ - input_sync(hp_wmi_input_dev); - - if (!hp_wmi_bios_2009_later() && hp_wmi_bios_2008_later()) - hp_wmi_enable_hotkeys(); - - status = wmi_install_notify_handler(HPWMI_EVENT_GUID, hp_wmi_notify, NULL); - if (ACPI_FAILURE(status)) { - err = -EIO; - goto err_free_dev; - } - - err = input_register_device(hp_wmi_input_dev); - if (err) - goto err_uninstall_notifier; - - return 0; - - err_uninstall_notifier: - wmi_remove_notify_handler(HPWMI_EVENT_GUID); - err_free_dev: - input_free_device(hp_wmi_input_dev); - return err; -} - -static void hp_wmi_input_destroy(void) -{ - wmi_remove_notify_handler(HPWMI_EVENT_GUID); - input_unregister_device(hp_wmi_input_dev); -} - -static int __init hp_wmi_rfkill_setup(struct platform_device *device) -{ - int err, wireless; - - wireless = hp_wmi_read_int(HPWMI_WIRELESS_QUERY); - if (wireless < 0) - return wireless; - - err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless, - sizeof(wireless), 0); - if (err) - return err; - - if (wireless & 0x1) { - wifi_rfkill = rfkill_alloc("hp-wifi", &device->dev, - RFKILL_TYPE_WLAN, - &hp_wmi_rfkill_ops, - (void *) HPWMI_WIFI); - if (!wifi_rfkill) - return -ENOMEM; - rfkill_init_sw_state(wifi_rfkill, - hp_wmi_get_sw_state(HPWMI_WIFI)); - rfkill_set_hw_state(wifi_rfkill, - hp_wmi_get_hw_state(HPWMI_WIFI)); - err = rfkill_register(wifi_rfkill); - if (err) - goto register_wifi_error; - } - - if (wireless & 0x2) { - bluetooth_rfkill = rfkill_alloc("hp-bluetooth", &device->dev, - RFKILL_TYPE_BLUETOOTH, - &hp_wmi_rfkill_ops, - (void *) HPWMI_BLUETOOTH); - if (!bluetooth_rfkill) { - err = -ENOMEM; - goto register_bluetooth_error; - } - rfkill_init_sw_state(bluetooth_rfkill, - hp_wmi_get_sw_state(HPWMI_BLUETOOTH)); - rfkill_set_hw_state(bluetooth_rfkill, - hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); - err = rfkill_register(bluetooth_rfkill); - if (err) - goto register_bluetooth_error; - } - - if (wireless & 0x4) { - wwan_rfkill = rfkill_alloc("hp-wwan", &device->dev, - RFKILL_TYPE_WWAN, - &hp_wmi_rfkill_ops, - (void *) HPWMI_WWAN); - if (!wwan_rfkill) { - err = -ENOMEM; - goto register_wwan_error; - } - rfkill_init_sw_state(wwan_rfkill, - hp_wmi_get_sw_state(HPWMI_WWAN)); - rfkill_set_hw_state(wwan_rfkill, - hp_wmi_get_hw_state(HPWMI_WWAN)); - err = rfkill_register(wwan_rfkill); - if (err) - goto register_wwan_error; - } - - return 0; - -register_wwan_error: - rfkill_destroy(wwan_rfkill); - wwan_rfkill = NULL; - if (bluetooth_rfkill) - rfkill_unregister(bluetooth_rfkill); -register_bluetooth_error: - rfkill_destroy(bluetooth_rfkill); - bluetooth_rfkill = NULL; - if (wifi_rfkill) - rfkill_unregister(wifi_rfkill); -register_wifi_error: - rfkill_destroy(wifi_rfkill); - wifi_rfkill = NULL; - return err; -} - -static int __init hp_wmi_rfkill2_setup(struct platform_device *device) -{ - struct bios_rfkill2_state state; - int err, i; - - err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); - if (err) - return err < 0 ? err : -EINVAL; - - if (state.count > HPWMI_MAX_RFKILL2_DEVICES) { - pr_warn("unable to parse 0x1b query output\n"); - return -EINVAL; - } - - for (i = 0; i < state.count; i++) { - struct rfkill *rfkill; - enum rfkill_type type; - char *name; - switch (state.device[i].radio_type) { - case HPWMI_WIFI: - type = RFKILL_TYPE_WLAN; - name = "hp-wifi"; - break; - case HPWMI_BLUETOOTH: - type = RFKILL_TYPE_BLUETOOTH; - name = "hp-bluetooth"; - break; - case HPWMI_WWAN: - type = RFKILL_TYPE_WWAN; - name = "hp-wwan"; - break; - case HPWMI_GPS: - type = RFKILL_TYPE_GPS; - name = "hp-gps"; - break; - default: - pr_warn("unknown device type 0x%x\n", - state.device[i].radio_type); - continue; - } - - if (!state.device[i].vendor_id) { - pr_warn("zero device %d while %d reported\n", - i, state.count); - continue; - } - - rfkill = rfkill_alloc(name, &device->dev, type, - &hp_wmi_rfkill2_ops, (void *)(long)i); - if (!rfkill) { - err = -ENOMEM; - goto fail; - } - - rfkill2[rfkill2_count].id = state.device[i].rfkill_id; - rfkill2[rfkill2_count].num = i; - rfkill2[rfkill2_count].rfkill = rfkill; - - rfkill_init_sw_state(rfkill, - IS_SWBLOCKED(state.device[i].power)); - rfkill_set_hw_state(rfkill, - IS_HWBLOCKED(state.device[i].power)); - - if (!(state.device[i].power & HPWMI_POWER_BIOS)) - pr_info("device %s blocked by BIOS\n", name); - - err = rfkill_register(rfkill); - if (err) { - rfkill_destroy(rfkill); - goto fail; - } - - rfkill2_count++; - } - - return 0; -fail: - for (; rfkill2_count > 0; rfkill2_count--) { - rfkill_unregister(rfkill2[rfkill2_count - 1].rfkill); - rfkill_destroy(rfkill2[rfkill2_count - 1].rfkill); - } - return err; -} - -static int __init hp_wmi_bios_setup(struct platform_device *device) -{ - /* clear detected rfkill devices */ - wifi_rfkill = NULL; - bluetooth_rfkill = NULL; - wwan_rfkill = NULL; - rfkill2_count = 0; - - if (hp_wmi_rfkill_setup(device)) - hp_wmi_rfkill2_setup(device); - - return 0; -} - -static int __exit hp_wmi_bios_remove(struct platform_device *device) -{ - int i; - - for (i = 0; i < rfkill2_count; i++) { - rfkill_unregister(rfkill2[i].rfkill); - rfkill_destroy(rfkill2[i].rfkill); - } - - if (wifi_rfkill) { - rfkill_unregister(wifi_rfkill); - rfkill_destroy(wifi_rfkill); - } - if (bluetooth_rfkill) { - rfkill_unregister(bluetooth_rfkill); - rfkill_destroy(bluetooth_rfkill); - } - if (wwan_rfkill) { - rfkill_unregister(wwan_rfkill); - rfkill_destroy(wwan_rfkill); - } - - return 0; -} - -static int hp_wmi_resume_handler(struct device *device) -{ - /* - * Hardware state may have changed while suspended, so trigger - * input events for the current state. As this is a switch, - * the input layer will only actually pass it on if the state - * changed. - */ - if (hp_wmi_input_dev) { - if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) - input_report_switch(hp_wmi_input_dev, SW_DOCK, - hp_wmi_hw_state(HPWMI_DOCK_MASK)); - if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) - input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, - hp_wmi_hw_state(HPWMI_TABLET_MASK)); - input_sync(hp_wmi_input_dev); - } - - if (rfkill2_count) - hp_wmi_rfkill2_refresh(); - - if (wifi_rfkill) - rfkill_set_states(wifi_rfkill, - hp_wmi_get_sw_state(HPWMI_WIFI), - hp_wmi_get_hw_state(HPWMI_WIFI)); - if (bluetooth_rfkill) - rfkill_set_states(bluetooth_rfkill, - hp_wmi_get_sw_state(HPWMI_BLUETOOTH), - hp_wmi_get_hw_state(HPWMI_BLUETOOTH)); - if (wwan_rfkill) - rfkill_set_states(wwan_rfkill, - hp_wmi_get_sw_state(HPWMI_WWAN), - hp_wmi_get_hw_state(HPWMI_WWAN)); - - return 0; -} - -static const struct dev_pm_ops hp_wmi_pm_ops = { - .resume = hp_wmi_resume_handler, - .restore = hp_wmi_resume_handler, -}; - -static struct platform_driver hp_wmi_driver = { - .driver = { - .name = "hp-wmi", - .pm = &hp_wmi_pm_ops, - .dev_groups = hp_wmi_groups, - }, - .remove = __exit_p(hp_wmi_bios_remove), -}; - -static int __init hp_wmi_init(void) -{ - int event_capable = wmi_has_guid(HPWMI_EVENT_GUID); - int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID); - int err; - - if (!bios_capable && !event_capable) - return -ENODEV; - - if (event_capable) { - err = hp_wmi_input_setup(); - if (err) - return err; - } - - if (bios_capable) { - hp_wmi_platform_dev = - platform_device_register_simple("hp-wmi", -1, NULL, 0); - if (IS_ERR(hp_wmi_platform_dev)) { - err = PTR_ERR(hp_wmi_platform_dev); - goto err_destroy_input; - } - - err = platform_driver_probe(&hp_wmi_driver, hp_wmi_bios_setup); - if (err) - goto err_unregister_device; - } - - return 0; - -err_unregister_device: - platform_device_unregister(hp_wmi_platform_dev); -err_destroy_input: - if (event_capable) - hp_wmi_input_destroy(); - - return err; -} -module_init(hp_wmi_init); - -static void __exit hp_wmi_exit(void) -{ - if (wmi_has_guid(HPWMI_EVENT_GUID)) - hp_wmi_input_destroy(); - - if (hp_wmi_platform_dev) { - platform_device_unregister(hp_wmi_platform_dev); - platform_driver_unregister(&hp_wmi_driver); - } -} -module_exit(hp_wmi_exit); |