| // 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/platform_profile.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"); |
| |
| static int enable_tablet_mode_sw = -1; |
| module_param(enable_tablet_mode_sw, int, 0444); |
| MODULE_PARM_DESC(enable_tablet_mode_sw, "Enable SW_TABLET_MODE reporting (-1=auto, 0=no, 1=yes)"); |
| |
| #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, |
| HPWMI_SANITIZATION_MODE = 0x17, |
| HPWMI_SMART_EXPERIENCE_APP = 0x21, |
| }; |
| |
| 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, |
| HPWMI_THERMAL_PROFILE_QUERY = 0x4c, |
| }; |
| |
| 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, |
| }; |
| |
| enum hp_thermal_profile { |
| HP_THERMAL_PROFILE_PERFORMANCE = 0x00, |
| HP_THERMAL_PROFILE_DEFAULT = 0x01, |
| HP_THERMAL_PROFILE_COOL = 0x02 |
| }; |
| |
| #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, 0x270, { KEY_MICMUTE } }, |
| { 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, 0x21a9, { KEY_TOUCHPAD_OFF } }, |
| { KE_KEY, 0x121a9, { KEY_TOUCHPAD_ON } }, |
| { 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 platform_profile_handler platform_profile_handler; |
| static bool platform_profile_support; |
| |
| 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_COMMAND && |
| 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; |
| case HPWMI_SANITIZATION_MODE: |
| break; |
| case HPWMI_SMART_EXPERIENCE_APP: |
| 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 */ |
| if (enable_tablet_mode_sw > 0) { |
| 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 thermal_profile_get(void) |
| { |
| return hp_wmi_read_int(HPWMI_THERMAL_PROFILE_QUERY); |
| } |
| |
| static int thermal_profile_set(int thermal_profile) |
| { |
| return hp_wmi_perform_query(HPWMI_THERMAL_PROFILE_QUERY, HPWMI_WRITE, &thermal_profile, |
| sizeof(thermal_profile), 0); |
| } |
| |
| static int platform_profile_get(struct platform_profile_handler *pprof, |
| enum platform_profile_option *profile) |
| { |
| int tp; |
| |
| tp = thermal_profile_get(); |
| if (tp < 0) |
| return tp; |
| |
| switch (tp) { |
| case HP_THERMAL_PROFILE_PERFORMANCE: |
| *profile = PLATFORM_PROFILE_PERFORMANCE; |
| break; |
| case HP_THERMAL_PROFILE_DEFAULT: |
| *profile = PLATFORM_PROFILE_BALANCED; |
| break; |
| case HP_THERMAL_PROFILE_COOL: |
| *profile = PLATFORM_PROFILE_COOL; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int platform_profile_set(struct platform_profile_handler *pprof, |
| enum platform_profile_option profile) |
| { |
| int err, tp; |
| |
| switch (profile) { |
| case PLATFORM_PROFILE_PERFORMANCE: |
| tp = HP_THERMAL_PROFILE_PERFORMANCE; |
| break; |
| case PLATFORM_PROFILE_BALANCED: |
| tp = HP_THERMAL_PROFILE_DEFAULT; |
| break; |
| case PLATFORM_PROFILE_COOL: |
| tp = HP_THERMAL_PROFILE_COOL; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| err = thermal_profile_set(tp); |
| if (err) |
| return err; |
| |
| return 0; |
| } |
| |
| static int thermal_profile_setup(void) |
| { |
| int err, tp; |
| |
| tp = thermal_profile_get(); |
| if (tp < 0) |
| return tp; |
| |
| /* |
| * call thermal profile write command to ensure that the firmware correctly |
| * sets the OEM variables for the DPTF |
| */ |
| err = thermal_profile_set(tp); |
| if (err) |
| return err; |
| |
| platform_profile_handler.profile_get = platform_profile_get, |
| platform_profile_handler.profile_set = platform_profile_set, |
| |
| set_bit(PLATFORM_PROFILE_COOL, platform_profile_handler.choices); |
| set_bit(PLATFORM_PROFILE_BALANCED, platform_profile_handler.choices); |
| set_bit(PLATFORM_PROFILE_PERFORMANCE, platform_profile_handler.choices); |
| |
| err = platform_profile_register(&platform_profile_handler); |
| if (err) |
| return err; |
| |
| platform_profile_support = true; |
| |
| return 0; |
| } |
| |
| 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; |
| |
| /* |
| * In pre-2009 BIOS, command 1Bh return 0x4 to indicate that |
| * BIOS no longer controls the power for the wireless |
| * devices. All features supported by this command will no |
| * longer be supported. |
| */ |
| if (!hp_wmi_bios_2009_later()) { |
| if (hp_wmi_rfkill_setup(device)) |
| hp_wmi_rfkill2_setup(device); |
| } |
| |
| thermal_profile_setup(); |
| |
| 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); |
| } |
| |
| if (platform_profile_support) |
| platform_profile_remove(); |
| |
| 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, |
| }; |
| |
| /* |
| * hp_wmi_bios_remove() lives in .exit.text. For drivers registered via |
| * module_platform_driver_probe() this is ok because they cannot get unbound at |
| * runtime. So mark the driver struct with __refdata to prevent modpost |
| * triggering a section mismatch warning. |
| */ |
| static struct platform_driver hp_wmi_driver __refdata = { |
| .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); |