| /* |
| * 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> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #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" |
| |
| #define HPWMI_DISPLAY_QUERY 0x1 |
| #define HPWMI_HDDTEMP_QUERY 0x2 |
| #define HPWMI_ALS_QUERY 0x3 |
| #define HPWMI_HARDWARE_QUERY 0x4 |
| #define HPWMI_WIRELESS_QUERY 0x5 |
| #define HPWMI_BIOS_QUERY 0x9 |
| #define HPWMI_FEATURE_QUERY 0xb |
| #define HPWMI_HOTKEY_QUERY 0xc |
| #define HPWMI_FEATURE2_QUERY 0xd |
| #define HPWMI_WIRELESS2_QUERY 0x1b |
| #define HPWMI_POSTCODEERROR_QUERY 0x2a |
| |
| enum hp_wmi_radio { |
| HPWMI_WIFI = 0, |
| HPWMI_BLUETOOTH = 1, |
| HPWMI_WWAN = 2, |
| HPWMI_GPS = 3, |
| }; |
| |
| enum hp_wmi_event_ids { |
| HPWMI_DOCK_EVENT = 1, |
| HPWMI_PARK_HDD = 2, |
| HPWMI_SMART_ADAPTER = 3, |
| HPWMI_BEZEL_BUTTON = 4, |
| HPWMI_WIRELESS = 5, |
| HPWMI_CPU_BATTERY_THROTTLE = 6, |
| HPWMI_LOCK_SWITCH = 7, |
| HPWMI_LID_SWITCH = 8, |
| HPWMI_SCREEN_ROTATION = 9, |
| 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; |
| u32 data; |
| }; |
| |
| 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, |
| }; |
| |
| #define IS_HWBLOCKED(x) ((x & (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) \ |
| != (HPWMI_POWER_BIOS | HPWMI_POWER_HARD)) |
| #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]; |
| |
| /* |
| * hp_wmi_perform_query |
| * |
| * query: The commandtype -> What should be queried |
| * write: The command -> 0 read, 1 write, 3 ODM specific |
| * 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 (0x7) 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(0x7, 0, buffer, 1, 128) |
| */ |
| static int hp_wmi_perform_query(int query, int write, void *buffer, |
| int insize, int outsize) |
| { |
| struct bios_return *bios_return; |
| int actual_outsize; |
| union acpi_object *obj; |
| struct bios_args args = { |
| .signature = 0x55434553, |
| .command = write ? 0x2 : 0x1, |
| .commandtype = query, |
| .datasize = insize, |
| .data = 0, |
| }; |
| struct acpi_buffer input = { sizeof(struct bios_args), &args }; |
| struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; |
| u32 rc; |
| |
| if (WARN_ON(insize > sizeof(args.data))) |
| return -EINVAL; |
| memcpy(&args.data, buffer, insize); |
| |
| wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output); |
| |
| obj = output.pointer; |
| |
| if (!obj) |
| return -EINVAL; |
| else if (obj->type != ACPI_TYPE_BUFFER) { |
| kfree(obj); |
| return -EINVAL; |
| } |
| |
| bios_return = (struct bios_return *)obj->buffer.pointer; |
| rc = bios_return->return_code; |
| |
| if (rc) { |
| if (rc != HPWMI_RET_UNKNOWN_CMDTYPE) |
| pr_warn("query 0x%x returned error 0x%x\n", query, rc); |
| kfree(obj); |
| return rc; |
| } |
| |
| if (!outsize) { |
| /* ignore output data */ |
| kfree(obj); |
| return 0; |
| } |
| |
| 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); |
| kfree(obj); |
| return 0; |
| } |
| |
| static int hp_wmi_display_state(void) |
| { |
| int state = 0; |
| int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state, |
| sizeof(state), sizeof(state)); |
| if (ret) |
| return -EINVAL; |
| return state; |
| } |
| |
| static int hp_wmi_hddtemp_state(void) |
| { |
| int state = 0; |
| int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state, |
| sizeof(state), sizeof(state)); |
| if (ret) |
| return -EINVAL; |
| return state; |
| } |
| |
| static int hp_wmi_als_state(void) |
| { |
| int state = 0; |
| int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state, |
| sizeof(state), sizeof(state)); |
| if (ret) |
| return -EINVAL; |
| return state; |
| } |
| |
| static int hp_wmi_dock_state(void) |
| { |
| int state = 0; |
| int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, |
| sizeof(state), sizeof(state)); |
| |
| if (ret) |
| return -EINVAL; |
| |
| return state & 0x1; |
| } |
| |
| static int hp_wmi_tablet_state(void) |
| { |
| int state = 0; |
| int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state, |
| sizeof(state), sizeof(state)); |
| if (ret) |
| return ret; |
| |
| return (state & 0x4) ? 1 : 0; |
| } |
| |
| static int __init hp_wmi_bios_2008_later(void) |
| { |
| int state = 0; |
| int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, 0, &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) |
| { |
| int state = 0; |
| int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, 0, &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, 1, &value, |
| sizeof(value), 0); |
| if (ret) |
| return -EINVAL; |
| return 0; |
| } |
| |
| 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, 1, |
| &query, sizeof(query), 0); |
| if (ret) |
| return -EINVAL; |
| return 0; |
| } |
| |
| 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 wireless = 0; |
| int mask; |
| hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, |
| &wireless, sizeof(wireless), |
| sizeof(wireless)); |
| /* TBD: Pass error */ |
| |
| mask = 0x200 << (r * 8); |
| |
| if (wireless & mask) |
| return false; |
| else |
| return true; |
| } |
| |
| static bool hp_wmi_get_hw_state(enum hp_wmi_radio r) |
| { |
| int wireless = 0; |
| int mask; |
| hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, |
| &wireless, sizeof(wireless), |
| sizeof(wireless)); |
| /* TBD: Pass error */ |
| |
| mask = 0x800 << (r * 8); |
| |
| if (wireless & mask) |
| return false; |
| else |
| return true; |
| } |
| |
| 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 }; |
| |
| if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1, |
| buffer, sizeof(buffer), 0)) |
| return -EINVAL; |
| return 0; |
| } |
| |
| static const struct rfkill_ops hp_wmi_rfkill2_ops = { |
| .set_block = hp_wmi_rfkill2_set_block, |
| }; |
| |
| static int hp_wmi_rfkill2_refresh(void) |
| { |
| int err, i; |
| struct bios_rfkill2_state state; |
| |
| err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, |
| 0, 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 int hp_wmi_post_code_state(void) |
| { |
| int state = 0; |
| int ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 0, &state, |
| sizeof(state), sizeof(state)); |
| if (ret) |
| return -EINVAL; |
| return state; |
| } |
| |
| static ssize_t show_display(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| int value = hp_wmi_display_state(); |
| if (value < 0) |
| return -EINVAL; |
| return sprintf(buf, "%d\n", value); |
| } |
| |
| static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| int value = hp_wmi_hddtemp_state(); |
| if (value < 0) |
| return -EINVAL; |
| return sprintf(buf, "%d\n", value); |
| } |
| |
| static ssize_t show_als(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| int value = hp_wmi_als_state(); |
| if (value < 0) |
| return -EINVAL; |
| return sprintf(buf, "%d\n", value); |
| } |
| |
| static ssize_t show_dock(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| int value = hp_wmi_dock_state(); |
| if (value < 0) |
| return -EINVAL; |
| return sprintf(buf, "%d\n", value); |
| } |
| |
| static ssize_t show_tablet(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| int value = hp_wmi_tablet_state(); |
| if (value < 0) |
| return -EINVAL; |
| return sprintf(buf, "%d\n", value); |
| } |
| |
| static ssize_t show_postcode(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| /* Get the POST error code of previous boot failure. */ |
| int value = hp_wmi_post_code_state(); |
| if (value < 0) |
| return -EINVAL; |
| return sprintf(buf, "0x%x\n", value); |
| } |
| |
| static ssize_t set_als(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| u32 tmp = simple_strtoul(buf, NULL, 10); |
| int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp, |
| sizeof(tmp), sizeof(tmp)); |
| if (ret) |
| return -EINVAL; |
| |
| return count; |
| } |
| |
| static ssize_t set_postcode(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| int ret; |
| u32 tmp; |
| long unsigned int tmp2; |
| |
| ret = kstrtoul(buf, 10, &tmp2); |
| if (ret || tmp2 != 1) |
| return -EINVAL; |
| |
| /* Clear the POST error code. It is kept until until cleared. */ |
| tmp = (u32) tmp2; |
| ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 1, &tmp, |
| sizeof(tmp), sizeof(tmp)); |
| if (ret) |
| return -EINVAL; |
| |
| return count; |
| } |
| |
| static DEVICE_ATTR(display, S_IRUGO, show_display, NULL); |
| static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL); |
| static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als); |
| static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL); |
| static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL); |
| static DEVICE_ATTR(postcode, S_IRUGO | S_IWUSR, show_postcode, set_postcode); |
| |
| static void hp_wmi_notify(u32 value, void *context) |
| { |
| struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; |
| union acpi_object *obj; |
| u32 event_id, event_data; |
| int key_code = 0, ret; |
| u32 *location; |
| acpi_status status; |
| |
| 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: |
| input_report_switch(hp_wmi_input_dev, SW_DOCK, |
| hp_wmi_dock_state()); |
| input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, |
| hp_wmi_tablet_state()); |
| input_sync(hp_wmi_input_dev); |
| break; |
| case HPWMI_PARK_HDD: |
| break; |
| case HPWMI_SMART_ADAPTER: |
| break; |
| case HPWMI_BEZEL_BUTTON: |
| ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0, |
| &key_code, |
| sizeof(key_code), |
| sizeof(key_code)); |
| if (ret) |
| 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; |
| |
| 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); |
| __set_bit(SW_DOCK, hp_wmi_input_dev->swbit); |
| __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); |
| |
| err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); |
| if (err) |
| goto err_free_dev; |
| |
| /* Set initial hardware state */ |
| input_report_switch(hp_wmi_input_dev, SW_DOCK, hp_wmi_dock_state()); |
| input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, |
| hp_wmi_tablet_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_keymap; |
| } |
| |
| 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_keymap: |
| sparse_keymap_free(hp_wmi_input_dev); |
| 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); |
| sparse_keymap_free(hp_wmi_input_dev); |
| input_unregister_device(hp_wmi_input_dev); |
| } |
| |
| static void cleanup_sysfs(struct platform_device *device) |
| { |
| device_remove_file(&device->dev, &dev_attr_display); |
| device_remove_file(&device->dev, &dev_attr_hddtemp); |
| device_remove_file(&device->dev, &dev_attr_als); |
| device_remove_file(&device->dev, &dev_attr_dock); |
| device_remove_file(&device->dev, &dev_attr_tablet); |
| device_remove_file(&device->dev, &dev_attr_postcode); |
| } |
| |
| static int __init hp_wmi_rfkill_setup(struct platform_device *device) |
| { |
| int err; |
| int wireless = 0; |
| |
| err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless, |
| sizeof(wireless), sizeof(wireless)); |
| 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) |
| { |
| int err, i; |
| struct bios_rfkill2_state state; |
| err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state, |
| 0, sizeof(state)); |
| if (err) |
| return err; |
| |
| 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) |
| { |
| int err; |
| |
| /* clear detected rfkill devices */ |
| wifi_rfkill = NULL; |
| bluetooth_rfkill = NULL; |
| wwan_rfkill = NULL; |
| rfkill2_count = 0; |
| |
| if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device)) |
| hp_wmi_rfkill2_setup(device); |
| |
| err = device_create_file(&device->dev, &dev_attr_display); |
| if (err) |
| goto add_sysfs_error; |
| err = device_create_file(&device->dev, &dev_attr_hddtemp); |
| if (err) |
| goto add_sysfs_error; |
| err = device_create_file(&device->dev, &dev_attr_als); |
| if (err) |
| goto add_sysfs_error; |
| err = device_create_file(&device->dev, &dev_attr_dock); |
| if (err) |
| goto add_sysfs_error; |
| err = device_create_file(&device->dev, &dev_attr_tablet); |
| if (err) |
| goto add_sysfs_error; |
| err = device_create_file(&device->dev, &dev_attr_postcode); |
| if (err) |
| goto add_sysfs_error; |
| return 0; |
| |
| add_sysfs_error: |
| cleanup_sysfs(device); |
| return err; |
| } |
| |
| static int __exit hp_wmi_bios_remove(struct platform_device *device) |
| { |
| int i; |
| cleanup_sysfs(device); |
| |
| 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) { |
| input_report_switch(hp_wmi_input_dev, SW_DOCK, |
| hp_wmi_dock_state()); |
| input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, |
| hp_wmi_tablet_state()); |
| 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, |
| }, |
| .remove = __exit_p(hp_wmi_bios_remove), |
| }; |
| |
| static int __init hp_wmi_init(void) |
| { |
| int err; |
| int event_capable = wmi_has_guid(HPWMI_EVENT_GUID); |
| int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID); |
| |
| 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); |