| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Benjamin Tissoires | 6878 | 44.41% | 33 | 56.90% |
| Edwin Velds | 5239 | 33.83% | 1 | 1.72% |
| Harry Cutts | 1320 | 8.52% | 4 | 6.90% |
| Peter Hutterer | 752 | 4.86% | 2 | 3.45% |
| Simon Wood | 670 | 4.33% | 4 | 6.90% |
| Goffredo Baroncelli | 432 | 2.79% | 1 | 1.72% |
| Peter Wu | 119 | 0.77% | 5 | 8.62% |
| Dan Carpenter | 44 | 0.28% | 1 | 1.72% |
| Bastien Nocera | 11 | 0.07% | 1 | 1.72% |
| Gustavo A. R. Silva | 9 | 0.06% | 1 | 1.72% |
| Julia Lawall | 5 | 0.03% | 1 | 1.72% |
| Dmitry Torokhov | 4 | 0.03% | 1 | 1.72% |
| Jiri Kosina | 2 | 0.01% | 1 | 1.72% |
| Arvind Yadav | 1 | 0.01% | 1 | 1.72% |
| Colin Ian King | 1 | 0.01% | 1 | 1.72% |
| Total | 15487 | 58 |
/* * HIDPP protocol for Logitech Unifying receivers * * Copyright (c) 2011 Logitech (c) * Copyright (c) 2012-2013 Google (c) * Copyright (c) 2013-2014 Red Hat Inc. */ /* * 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; version 2 of the License. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/device.h> #include <linux/input.h> #include <linux/usb.h> #include <linux/hid.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/sched.h> #include <linux/sched/clock.h> #include <linux/kfifo.h> #include <linux/input/mt.h> #include <linux/workqueue.h> #include <linux/atomic.h> #include <linux/fixp-arith.h> #include <asm/unaligned.h> #include "usbhid/usbhid.h" #include "hid-ids.h" MODULE_LICENSE("GPL"); MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); MODULE_AUTHOR("Nestor Lopez Casado <nlopezcasad@logitech.com>"); static bool disable_raw_mode; module_param(disable_raw_mode, bool, 0644); MODULE_PARM_DESC(disable_raw_mode, "Disable Raw mode reporting for touchpads and keep firmware gestures."); static bool disable_tap_to_click; module_param(disable_tap_to_click, bool, 0644); MODULE_PARM_DESC(disable_tap_to_click, "Disable Tap-To-Click mode reporting for touchpads (only on the K400 currently)."); #define REPORT_ID_HIDPP_SHORT 0x10 #define REPORT_ID_HIDPP_LONG 0x11 #define REPORT_ID_HIDPP_VERY_LONG 0x12 #define HIDPP_REPORT_SHORT_LENGTH 7 #define HIDPP_REPORT_LONG_LENGTH 20 #define HIDPP_REPORT_VERY_LONG_LENGTH 64 #define HIDPP_QUIRK_CLASS_WTP BIT(0) #define HIDPP_QUIRK_CLASS_M560 BIT(1) #define HIDPP_QUIRK_CLASS_K400 BIT(2) #define HIDPP_QUIRK_CLASS_G920 BIT(3) #define HIDPP_QUIRK_CLASS_K750 BIT(4) /* bits 2..20 are reserved for classes */ /* #define HIDPP_QUIRK_CONNECT_EVENTS BIT(21) disabled */ #define HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS BIT(22) #define HIDPP_QUIRK_NO_HIDINPUT BIT(23) #define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24) #define HIDPP_QUIRK_UNIFYING BIT(25) #define HIDPP_QUIRK_HI_RES_SCROLL_1P0 BIT(26) #define HIDPP_QUIRK_HI_RES_SCROLL_X2120 BIT(27) #define HIDPP_QUIRK_HI_RES_SCROLL_X2121 BIT(28) /* Convenience constant to check for any high-res support. */ #define HIDPP_QUIRK_HI_RES_SCROLL (HIDPP_QUIRK_HI_RES_SCROLL_1P0 | \ HIDPP_QUIRK_HI_RES_SCROLL_X2120 | \ HIDPP_QUIRK_HI_RES_SCROLL_X2121) #define HIDPP_QUIRK_DELAYED_INIT HIDPP_QUIRK_NO_HIDINPUT #define HIDPP_CAPABILITY_HIDPP10_BATTERY BIT(0) #define HIDPP_CAPABILITY_HIDPP20_BATTERY BIT(1) #define HIDPP_CAPABILITY_BATTERY_MILEAGE BIT(2) #define HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS BIT(3) /* * There are two hidpp protocols in use, the first version hidpp10 is known * as register access protocol or RAP, the second version hidpp20 is known as * feature access protocol or FAP * * Most older devices (including the Unifying usb receiver) use the RAP protocol * where as most newer devices use the FAP protocol. Both protocols are * compatible with the underlying transport, which could be usb, Unifiying, or * bluetooth. The message lengths are defined by the hid vendor specific report * descriptor for the HIDPP_SHORT report type (total message lenth 7 bytes) and * the HIDPP_LONG report type (total message length 20 bytes) * * The RAP protocol uses both report types, whereas the FAP only uses HIDPP_LONG * messages. The Unifying receiver itself responds to RAP messages (device index * is 0xFF for the receiver), and all messages (short or long) with a device * index between 1 and 6 are passed untouched to the corresponding paired * Unifying device. * * The paired device can be RAP or FAP, it will receive the message untouched * from the Unifiying receiver. */ struct fap { u8 feature_index; u8 funcindex_clientid; u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U]; }; struct rap { u8 sub_id; u8 reg_address; u8 params[HIDPP_REPORT_VERY_LONG_LENGTH - 4U]; }; struct hidpp_report { u8 report_id; u8 device_index; union { struct fap fap; struct rap rap; u8 rawbytes[sizeof(struct fap)]; }; } __packed; struct hidpp_battery { u8 feature_index; u8 solar_feature_index; struct power_supply_desc desc; struct power_supply *ps; char name[64]; int status; int capacity; int level; bool online; }; /** * struct hidpp_scroll_counter - Utility class for processing high-resolution * scroll events. * @dev: the input device for which events should be reported. * @wheel_multiplier: the scalar multiplier to be applied to each wheel event * @remainder: counts the number of high-resolution units moved since the last * low-resolution event (REL_WHEEL or REL_HWHEEL) was sent. Should * only be used by class methods. * @direction: direction of last movement (1 or -1) * @last_time: last event time, used to reset remainder after inactivity */ struct hidpp_scroll_counter { struct input_dev *dev; int wheel_multiplier; int remainder; int direction; unsigned long long last_time; }; struct hidpp_device { struct hid_device *hid_dev; struct mutex send_mutex; void *send_receive_buf; char *name; /* will never be NULL and should not be freed */ wait_queue_head_t wait; bool answer_available; u8 protocol_major; u8 protocol_minor; void *private_data; struct work_struct work; struct kfifo delayed_work_fifo; atomic_t connected; struct input_dev *delayed_input; unsigned long quirks; unsigned long capabilities; struct hidpp_battery battery; struct hidpp_scroll_counter vertical_wheel_counter; }; /* HID++ 1.0 error codes */ #define HIDPP_ERROR 0x8f #define HIDPP_ERROR_SUCCESS 0x00 #define HIDPP_ERROR_INVALID_SUBID 0x01 #define HIDPP_ERROR_INVALID_ADRESS 0x02 #define HIDPP_ERROR_INVALID_VALUE 0x03 #define HIDPP_ERROR_CONNECT_FAIL 0x04 #define HIDPP_ERROR_TOO_MANY_DEVICES 0x05 #define HIDPP_ERROR_ALREADY_EXISTS 0x06 #define HIDPP_ERROR_BUSY 0x07 #define HIDPP_ERROR_UNKNOWN_DEVICE 0x08 #define HIDPP_ERROR_RESOURCE_ERROR 0x09 #define HIDPP_ERROR_REQUEST_UNAVAILABLE 0x0a #define HIDPP_ERROR_INVALID_PARAM_VALUE 0x0b #define HIDPP_ERROR_WRONG_PIN_CODE 0x0c /* HID++ 2.0 error codes */ #define HIDPP20_ERROR 0xff static void hidpp_connect_event(struct hidpp_device *hidpp_dev); static int __hidpp_send_report(struct hid_device *hdev, struct hidpp_report *hidpp_report) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); int fields_count, ret; hidpp = hid_get_drvdata(hdev); switch (hidpp_report->report_id) { case REPORT_ID_HIDPP_SHORT: fields_count = HIDPP_REPORT_SHORT_LENGTH; break; case REPORT_ID_HIDPP_LONG: fields_count = HIDPP_REPORT_LONG_LENGTH; break; case REPORT_ID_HIDPP_VERY_LONG: fields_count = HIDPP_REPORT_VERY_LONG_LENGTH; break; default: return -ENODEV; } /* * set the device_index as the receiver, it will be overwritten by * hid_hw_request if needed */ hidpp_report->device_index = 0xff; if (hidpp->quirks & HIDPP_QUIRK_FORCE_OUTPUT_REPORTS) { ret = hid_hw_output_report(hdev, (u8 *)hidpp_report, fields_count); } else { ret = hid_hw_raw_request(hdev, hidpp_report->report_id, (u8 *)hidpp_report, fields_count, HID_OUTPUT_REPORT, HID_REQ_SET_REPORT); } return ret == fields_count ? 0 : -1; } /** * hidpp_send_message_sync() returns 0 in case of success, and something else * in case of a failure. * - If ' something else' is positive, that means that an error has been raised * by the protocol itself. * - If ' something else' is negative, that means that we had a classic error * (-ENOMEM, -EPIPE, etc...) */ static int hidpp_send_message_sync(struct hidpp_device *hidpp, struct hidpp_report *message, struct hidpp_report *response) { int ret; mutex_lock(&hidpp->send_mutex); hidpp->send_receive_buf = response; hidpp->answer_available = false; /* * So that we can later validate the answer when it arrives * in hidpp_raw_event */ *response = *message; ret = __hidpp_send_report(hidpp->hid_dev, message); if (ret) { dbg_hid("__hidpp_send_report returned err: %d\n", ret); memset(response, 0, sizeof(struct hidpp_report)); goto exit; } if (!wait_event_timeout(hidpp->wait, hidpp->answer_available, 5*HZ)) { dbg_hid("%s:timeout waiting for response\n", __func__); memset(response, 0, sizeof(struct hidpp_report)); ret = -ETIMEDOUT; } if (response->report_id == REPORT_ID_HIDPP_SHORT && response->rap.sub_id == HIDPP_ERROR) { ret = response->rap.params[1]; dbg_hid("%s:got hidpp error %02X\n", __func__, ret); goto exit; } if ((response->report_id == REPORT_ID_HIDPP_LONG || response->report_id == REPORT_ID_HIDPP_VERY_LONG) && response->fap.feature_index == HIDPP20_ERROR) { ret = response->fap.params[1]; dbg_hid("%s:got hidpp 2.0 error %02X\n", __func__, ret); goto exit; } exit: mutex_unlock(&hidpp->send_mutex); return ret; } static int hidpp_send_fap_command_sync(struct hidpp_device *hidpp, u8 feat_index, u8 funcindex_clientid, u8 *params, int param_count, struct hidpp_report *response) { struct hidpp_report *message; int ret; if (param_count > sizeof(message->fap.params)) return -EINVAL; message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL); if (!message) return -ENOMEM; if (param_count > (HIDPP_REPORT_LONG_LENGTH - 4)) message->report_id = REPORT_ID_HIDPP_VERY_LONG; else message->report_id = REPORT_ID_HIDPP_LONG; message->fap.feature_index = feat_index; message->fap.funcindex_clientid = funcindex_clientid; memcpy(&message->fap.params, params, param_count); ret = hidpp_send_message_sync(hidpp, message, response); kfree(message); return ret; } static int hidpp_send_rap_command_sync(struct hidpp_device *hidpp_dev, u8 report_id, u8 sub_id, u8 reg_address, u8 *params, int param_count, struct hidpp_report *response) { struct hidpp_report *message; int ret, max_count; switch (report_id) { case REPORT_ID_HIDPP_SHORT: max_count = HIDPP_REPORT_SHORT_LENGTH - 4; break; case REPORT_ID_HIDPP_LONG: max_count = HIDPP_REPORT_LONG_LENGTH - 4; break; case REPORT_ID_HIDPP_VERY_LONG: max_count = HIDPP_REPORT_VERY_LONG_LENGTH - 4; break; default: return -EINVAL; } if (param_count > max_count) return -EINVAL; message = kzalloc(sizeof(struct hidpp_report), GFP_KERNEL); if (!message) return -ENOMEM; message->report_id = report_id; message->rap.sub_id = sub_id; message->rap.reg_address = reg_address; memcpy(&message->rap.params, params, param_count); ret = hidpp_send_message_sync(hidpp_dev, message, response); kfree(message); return ret; } static void delayed_work_cb(struct work_struct *work) { struct hidpp_device *hidpp = container_of(work, struct hidpp_device, work); hidpp_connect_event(hidpp); } static inline bool hidpp_match_answer(struct hidpp_report *question, struct hidpp_report *answer) { return (answer->fap.feature_index == question->fap.feature_index) && (answer->fap.funcindex_clientid == question->fap.funcindex_clientid); } static inline bool hidpp_match_error(struct hidpp_report *question, struct hidpp_report *answer) { return ((answer->rap.sub_id == HIDPP_ERROR) || (answer->fap.feature_index == HIDPP20_ERROR)) && (answer->fap.funcindex_clientid == question->fap.feature_index) && (answer->fap.params[0] == question->fap.funcindex_clientid); } static inline bool hidpp_report_is_connect_event(struct hidpp_report *report) { return (report->report_id == REPORT_ID_HIDPP_SHORT) && (report->rap.sub_id == 0x41); } /** * hidpp_prefix_name() prefixes the current given name with "Logitech ". */ static void hidpp_prefix_name(char **name, int name_length) { #define PREFIX_LENGTH 9 /* "Logitech " */ int new_length; char *new_name; if (name_length > PREFIX_LENGTH && strncmp(*name, "Logitech ", PREFIX_LENGTH) == 0) /* The prefix has is already in the name */ return; new_length = PREFIX_LENGTH + name_length; new_name = kzalloc(new_length, GFP_KERNEL); if (!new_name) return; snprintf(new_name, new_length, "Logitech %s", *name); kfree(*name); *name = new_name; } /** * hidpp_scroll_counter_handle_scroll() - Send high- and low-resolution scroll * events given a high-resolution wheel * movement. * @counter: a hid_scroll_counter struct describing the wheel. * @hi_res_value: the movement of the wheel, in the mouse's high-resolution * units. * * Given a high-resolution movement, this function converts the movement into * fractions of 120 and emits high-resolution scroll events for the input * device. It also uses the multiplier from &struct hid_scroll_counter to * emit low-resolution scroll events when appropriate for * backwards-compatibility with userspace input libraries. */ static void hidpp_scroll_counter_handle_scroll(struct hidpp_scroll_counter *counter, int hi_res_value) { int low_res_value, remainder, direction; unsigned long long now, previous; hi_res_value = hi_res_value * 120/counter->wheel_multiplier; input_report_rel(counter->dev, REL_WHEEL_HI_RES, hi_res_value); remainder = counter->remainder; direction = hi_res_value > 0 ? 1 : -1; now = sched_clock(); previous = counter->last_time; counter->last_time = now; /* * Reset the remainder after a period of inactivity or when the * direction changes. This prevents the REL_WHEEL emulation point * from sliding for devices that don't always provide the same * number of movements per detent. */ if (now - previous > 1000000000 || direction != counter->direction) remainder = 0; counter->direction = direction; remainder += hi_res_value; /* Some wheels will rest 7/8ths of a detent from the previous detent * after slow movement, so we want the threshold for low-res events to * be in the middle between two detents (e.g. after 4/8ths) as * opposed to on the detents themselves (8/8ths). */ if (abs(remainder) >= 60) { /* Add (or subtract) 1 because we want to trigger when the wheel * is half-way to the next detent (i.e. scroll 1 detent after a * 1/2 detent movement, 2 detents after a 1 1/2 detent movement, * etc.). */ low_res_value = remainder / 120; if (low_res_value == 0) low_res_value = (hi_res_value > 0 ? 1 : -1); input_report_rel(counter->dev, REL_WHEEL, low_res_value); remainder -= low_res_value * 120; } counter->remainder = remainder; } /* -------------------------------------------------------------------------- */ /* HIDP++ 1.0 commands */ /* -------------------------------------------------------------------------- */ #define HIDPP_SET_REGISTER 0x80 #define HIDPP_GET_REGISTER 0x81 #define HIDPP_SET_LONG_REGISTER 0x82 #define HIDPP_GET_LONG_REGISTER 0x83 /** * hidpp10_set_register_bit() - Sets a single bit in a HID++ 1.0 register. * @hidpp_dev: the device to set the register on. * @register_address: the address of the register to modify. * @byte: the byte of the register to modify. Should be less than 3. * Return: 0 if successful, otherwise a negative error code. */ static int hidpp10_set_register_bit(struct hidpp_device *hidpp_dev, u8 register_address, u8 byte, u8 bit) { struct hidpp_report response; int ret; u8 params[3] = { 0 }; ret = hidpp_send_rap_command_sync(hidpp_dev, REPORT_ID_HIDPP_SHORT, HIDPP_GET_REGISTER, register_address, NULL, 0, &response); if (ret) return ret; memcpy(params, response.rap.params, 3); params[byte] |= BIT(bit); return hidpp_send_rap_command_sync(hidpp_dev, REPORT_ID_HIDPP_SHORT, HIDPP_SET_REGISTER, register_address, params, 3, &response); } #define HIDPP_REG_GENERAL 0x00 static int hidpp10_enable_battery_reporting(struct hidpp_device *hidpp_dev) { return hidpp10_set_register_bit(hidpp_dev, HIDPP_REG_GENERAL, 0, 4); } #define HIDPP_REG_FEATURES 0x01 /* On HID++ 1.0 devices, high-res scroll was called "scrolling acceleration". */ static int hidpp10_enable_scrolling_acceleration(struct hidpp_device *hidpp_dev) { return hidpp10_set_register_bit(hidpp_dev, HIDPP_REG_FEATURES, 0, 6); } #define HIDPP_REG_BATTERY_STATUS 0x07 static int hidpp10_battery_status_map_level(u8 param) { int level; switch (param) { case 1 ... 2: level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; break; case 3 ... 4: level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; break; case 5 ... 6: level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; break; case 7: level = POWER_SUPPLY_CAPACITY_LEVEL_HIGH; break; default: level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN; } return level; } static int hidpp10_battery_status_map_status(u8 param) { int status; switch (param) { case 0x00: /* discharging (in use) */ status = POWER_SUPPLY_STATUS_DISCHARGING; break; case 0x21: /* (standard) charging */ case 0x24: /* fast charging */ case 0x25: /* slow charging */ status = POWER_SUPPLY_STATUS_CHARGING; break; case 0x26: /* topping charge */ case 0x22: /* charge complete */ status = POWER_SUPPLY_STATUS_FULL; break; case 0x20: /* unknown */ status = POWER_SUPPLY_STATUS_UNKNOWN; break; /* * 0x01...0x1F = reserved (not charging) * 0x23 = charging error * 0x27..0xff = reserved */ default: status = POWER_SUPPLY_STATUS_NOT_CHARGING; break; } return status; } static int hidpp10_query_battery_status(struct hidpp_device *hidpp) { struct hidpp_report response; int ret, status; ret = hidpp_send_rap_command_sync(hidpp, REPORT_ID_HIDPP_SHORT, HIDPP_GET_REGISTER, HIDPP_REG_BATTERY_STATUS, NULL, 0, &response); if (ret) return ret; hidpp->battery.level = hidpp10_battery_status_map_level(response.rap.params[0]); status = hidpp10_battery_status_map_status(response.rap.params[1]); hidpp->battery.status = status; /* the capacity is only available when discharging or full */ hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING || status == POWER_SUPPLY_STATUS_FULL; return 0; } #define HIDPP_REG_BATTERY_MILEAGE 0x0D static int hidpp10_battery_mileage_map_status(u8 param) { int status; switch (param >> 6) { case 0x00: /* discharging (in use) */ status = POWER_SUPPLY_STATUS_DISCHARGING; break; case 0x01: /* charging */ status = POWER_SUPPLY_STATUS_CHARGING; break; case 0x02: /* charge complete */ status = POWER_SUPPLY_STATUS_FULL; break; /* * 0x03 = charging error */ default: status = POWER_SUPPLY_STATUS_NOT_CHARGING; break; } return status; } static int hidpp10_query_battery_mileage(struct hidpp_device *hidpp) { struct hidpp_report response; int ret, status; ret = hidpp_send_rap_command_sync(hidpp, REPORT_ID_HIDPP_SHORT, HIDPP_GET_REGISTER, HIDPP_REG_BATTERY_MILEAGE, NULL, 0, &response); if (ret) return ret; hidpp->battery.capacity = response.rap.params[0]; status = hidpp10_battery_mileage_map_status(response.rap.params[2]); hidpp->battery.status = status; /* the capacity is only available when discharging or full */ hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING || status == POWER_SUPPLY_STATUS_FULL; return 0; } static int hidpp10_battery_event(struct hidpp_device *hidpp, u8 *data, int size) { struct hidpp_report *report = (struct hidpp_report *)data; int status, capacity, level; bool changed; if (report->report_id != REPORT_ID_HIDPP_SHORT) return 0; switch (report->rap.sub_id) { case HIDPP_REG_BATTERY_STATUS: capacity = hidpp->battery.capacity; level = hidpp10_battery_status_map_level(report->rawbytes[1]); status = hidpp10_battery_status_map_status(report->rawbytes[2]); break; case HIDPP_REG_BATTERY_MILEAGE: capacity = report->rap.params[0]; level = hidpp->battery.level; status = hidpp10_battery_mileage_map_status(report->rawbytes[3]); break; default: return 0; } changed = capacity != hidpp->battery.capacity || level != hidpp->battery.level || status != hidpp->battery.status; /* the capacity is only available when discharging or full */ hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING || status == POWER_SUPPLY_STATUS_FULL; if (changed) { hidpp->battery.level = level; hidpp->battery.status = status; if (hidpp->battery.ps) power_supply_changed(hidpp->battery.ps); } return 0; } #define HIDPP_REG_PAIRING_INFORMATION 0xB5 #define HIDPP_EXTENDED_PAIRING 0x30 #define HIDPP_DEVICE_NAME 0x40 static char *hidpp_unifying_get_name(struct hidpp_device *hidpp_dev) { struct hidpp_report response; int ret; u8 params[1] = { HIDPP_DEVICE_NAME }; char *name; int len; ret = hidpp_send_rap_command_sync(hidpp_dev, REPORT_ID_HIDPP_SHORT, HIDPP_GET_LONG_REGISTER, HIDPP_REG_PAIRING_INFORMATION, params, 1, &response); if (ret) return NULL; len = response.rap.params[1]; if (2 + len > sizeof(response.rap.params)) return NULL; name = kzalloc(len + 1, GFP_KERNEL); if (!name) return NULL; memcpy(name, &response.rap.params[2], len); /* include the terminating '\0' */ hidpp_prefix_name(&name, len + 1); return name; } static int hidpp_unifying_get_serial(struct hidpp_device *hidpp, u32 *serial) { struct hidpp_report response; int ret; u8 params[1] = { HIDPP_EXTENDED_PAIRING }; ret = hidpp_send_rap_command_sync(hidpp, REPORT_ID_HIDPP_SHORT, HIDPP_GET_LONG_REGISTER, HIDPP_REG_PAIRING_INFORMATION, params, 1, &response); if (ret) return ret; /* * We don't care about LE or BE, we will output it as a string * with %4phD, so we need to keep the order. */ *serial = *((u32 *)&response.rap.params[1]); return 0; } static int hidpp_unifying_init(struct hidpp_device *hidpp) { struct hid_device *hdev = hidpp->hid_dev; const char *name; u32 serial; int ret; ret = hidpp_unifying_get_serial(hidpp, &serial); if (ret) return ret; snprintf(hdev->uniq, sizeof(hdev->uniq), "%04x-%4phD", hdev->product, &serial); dbg_hid("HID++ Unifying: Got serial: %s\n", hdev->uniq); name = hidpp_unifying_get_name(hidpp); if (!name) return -EIO; snprintf(hdev->name, sizeof(hdev->name), "%s", name); dbg_hid("HID++ Unifying: Got name: %s\n", name); kfree(name); return 0; } /* -------------------------------------------------------------------------- */ /* 0x0000: Root */ /* -------------------------------------------------------------------------- */ #define HIDPP_PAGE_ROOT 0x0000 #define HIDPP_PAGE_ROOT_IDX 0x00 #define CMD_ROOT_GET_FEATURE 0x01 #define CMD_ROOT_GET_PROTOCOL_VERSION 0x11 static int hidpp_root_get_feature(struct hidpp_device *hidpp, u16 feature, u8 *feature_index, u8 *feature_type) { struct hidpp_report response; int ret; u8 params[2] = { feature >> 8, feature & 0x00FF }; ret = hidpp_send_fap_command_sync(hidpp, HIDPP_PAGE_ROOT_IDX, CMD_ROOT_GET_FEATURE, params, 2, &response); if (ret) return ret; if (response.fap.params[0] == 0) return -ENOENT; *feature_index = response.fap.params[0]; *feature_type = response.fap.params[1]; return ret; } static int hidpp_root_get_protocol_version(struct hidpp_device *hidpp) { struct hidpp_report response; int ret; ret = hidpp_send_fap_command_sync(hidpp, HIDPP_PAGE_ROOT_IDX, CMD_ROOT_GET_PROTOCOL_VERSION, NULL, 0, &response); if (ret == HIDPP_ERROR_INVALID_SUBID) { hidpp->protocol_major = 1; hidpp->protocol_minor = 0; return 0; } /* the device might not be connected */ if (ret == HIDPP_ERROR_RESOURCE_ERROR) return -EIO; if (ret > 0) { hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n", __func__, ret); return -EPROTO; } if (ret) return ret; hidpp->protocol_major = response.fap.params[0]; hidpp->protocol_minor = response.fap.params[1]; return ret; } static bool hidpp_is_connected(struct hidpp_device *hidpp) { int ret; ret = hidpp_root_get_protocol_version(hidpp); if (!ret) hid_dbg(hidpp->hid_dev, "HID++ %u.%u device connected.\n", hidpp->protocol_major, hidpp->protocol_minor); return ret == 0; } /* -------------------------------------------------------------------------- */ /* 0x0005: GetDeviceNameType */ /* -------------------------------------------------------------------------- */ #define HIDPP_PAGE_GET_DEVICE_NAME_TYPE 0x0005 #define CMD_GET_DEVICE_NAME_TYPE_GET_COUNT 0x01 #define CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME 0x11 #define CMD_GET_DEVICE_NAME_TYPE_GET_TYPE 0x21 static int hidpp_devicenametype_get_count(struct hidpp_device *hidpp, u8 feature_index, u8 *nameLength) { struct hidpp_report response; int ret; ret = hidpp_send_fap_command_sync(hidpp, feature_index, CMD_GET_DEVICE_NAME_TYPE_GET_COUNT, NULL, 0, &response); if (ret > 0) { hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n", __func__, ret); return -EPROTO; } if (ret) return ret; *nameLength = response.fap.params[0]; return ret; } static int hidpp_devicenametype_get_device_name(struct hidpp_device *hidpp, u8 feature_index, u8 char_index, char *device_name, int len_buf) { struct hidpp_report response; int ret, i; int count; ret = hidpp_send_fap_command_sync(hidpp, feature_index, CMD_GET_DEVICE_NAME_TYPE_GET_DEVICE_NAME, &char_index, 1, &response); if (ret > 0) { hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n", __func__, ret); return -EPROTO; } if (ret) return ret; switch (response.report_id) { case REPORT_ID_HIDPP_VERY_LONG: count = HIDPP_REPORT_VERY_LONG_LENGTH - 4; break; case REPORT_ID_HIDPP_LONG: count = HIDPP_REPORT_LONG_LENGTH - 4; break; case REPORT_ID_HIDPP_SHORT: count = HIDPP_REPORT_SHORT_LENGTH - 4; break; default: return -EPROTO; } if (len_buf < count) count = len_buf; for (i = 0; i < count; i++) device_name[i] = response.fap.params[i]; return count; } static char *hidpp_get_device_name(struct hidpp_device *hidpp) { u8 feature_type; u8 feature_index; u8 __name_length; char *name; unsigned index = 0; int ret; ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_GET_DEVICE_NAME_TYPE, &feature_index, &feature_type); if (ret) return NULL; ret = hidpp_devicenametype_get_count(hidpp, feature_index, &__name_length); if (ret) return NULL; name = kzalloc(__name_length + 1, GFP_KERNEL); if (!name) return NULL; while (index < __name_length) { ret = hidpp_devicenametype_get_device_name(hidpp, feature_index, index, name + index, __name_length - index); if (ret <= 0) { kfree(name); return NULL; } index += ret; } /* include the terminating '\0' */ hidpp_prefix_name(&name, __name_length + 1); return name; } /* -------------------------------------------------------------------------- */ /* 0x1000: Battery level status */ /* -------------------------------------------------------------------------- */ #define HIDPP_PAGE_BATTERY_LEVEL_STATUS 0x1000 #define CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS 0x00 #define CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_CAPABILITY 0x10 #define EVENT_BATTERY_LEVEL_STATUS_BROADCAST 0x00 #define FLAG_BATTERY_LEVEL_DISABLE_OSD BIT(0) #define FLAG_BATTERY_LEVEL_MILEAGE BIT(1) #define FLAG_BATTERY_LEVEL_RECHARGEABLE BIT(2) static int hidpp_map_battery_level(int capacity) { if (capacity < 11) return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; else if (capacity < 31) return POWER_SUPPLY_CAPACITY_LEVEL_LOW; else if (capacity < 81) return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; return POWER_SUPPLY_CAPACITY_LEVEL_FULL; } static int hidpp20_batterylevel_map_status_capacity(u8 data[3], int *capacity, int *next_capacity, int *level) { int status; *capacity = data[0]; *next_capacity = data[1]; *level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN; /* When discharging, we can rely on the device reported capacity. * For all other states the device reports 0 (unknown). */ switch (data[2]) { case 0: /* discharging (in use) */ status = POWER_SUPPLY_STATUS_DISCHARGING; *level = hidpp_map_battery_level(*capacity); break; case 1: /* recharging */ status = POWER_SUPPLY_STATUS_CHARGING; break; case 2: /* charge in final stage */ status = POWER_SUPPLY_STATUS_CHARGING; break; case 3: /* charge complete */ status = POWER_SUPPLY_STATUS_FULL; *level = POWER_SUPPLY_CAPACITY_LEVEL_FULL; *capacity = 100; break; case 4: /* recharging below optimal speed */ status = POWER_SUPPLY_STATUS_CHARGING; break; /* 5 = invalid battery type 6 = thermal error 7 = other charging error */ default: status = POWER_SUPPLY_STATUS_NOT_CHARGING; break; } return status; } static int hidpp20_batterylevel_get_battery_capacity(struct hidpp_device *hidpp, u8 feature_index, int *status, int *capacity, int *next_capacity, int *level) { struct hidpp_report response; int ret; u8 *params = (u8 *)response.fap.params; ret = hidpp_send_fap_command_sync(hidpp, feature_index, CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS, NULL, 0, &response); if (ret > 0) { hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n", __func__, ret); return -EPROTO; } if (ret) return ret; *status = hidpp20_batterylevel_map_status_capacity(params, capacity, next_capacity, level); return 0; } static int hidpp20_batterylevel_get_battery_info(struct hidpp_device *hidpp, u8 feature_index) { struct hidpp_report response; int ret; u8 *params = (u8 *)response.fap.params; unsigned int level_count, flags; ret = hidpp_send_fap_command_sync(hidpp, feature_index, CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_CAPABILITY, NULL, 0, &response); if (ret > 0) { hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n", __func__, ret); return -EPROTO; } if (ret) return ret; level_count = params[0]; flags = params[1]; if (level_count < 10 || !(flags & FLAG_BATTERY_LEVEL_MILEAGE)) hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS; else hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE; return 0; } static int hidpp20_query_battery_info(struct hidpp_device *hidpp) { u8 feature_type; int ret; int status, capacity, next_capacity, level; if (hidpp->battery.feature_index == 0xff) { ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_BATTERY_LEVEL_STATUS, &hidpp->battery.feature_index, &feature_type); if (ret) return ret; } ret = hidpp20_batterylevel_get_battery_capacity(hidpp, hidpp->battery.feature_index, &status, &capacity, &next_capacity, &level); if (ret) return ret; ret = hidpp20_batterylevel_get_battery_info(hidpp, hidpp->battery.feature_index); if (ret) return ret; hidpp->battery.status = status; hidpp->battery.capacity = capacity; hidpp->battery.level = level; /* the capacity is only available when discharging or full */ hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING || status == POWER_SUPPLY_STATUS_FULL; return 0; } static int hidpp20_battery_event(struct hidpp_device *hidpp, u8 *data, int size) { struct hidpp_report *report = (struct hidpp_report *)data; int status, capacity, next_capacity, level; bool changed; if (report->fap.feature_index != hidpp->battery.feature_index || report->fap.funcindex_clientid != EVENT_BATTERY_LEVEL_STATUS_BROADCAST) return 0; status = hidpp20_batterylevel_map_status_capacity(report->fap.params, &capacity, &next_capacity, &level); /* the capacity is only available when discharging or full */ hidpp->battery.online = status == POWER_SUPPLY_STATUS_DISCHARGING || status == POWER_SUPPLY_STATUS_FULL; changed = capacity != hidpp->battery.capacity || level != hidpp->battery.level || status != hidpp->battery.status; if (changed) { hidpp->battery.level = level; hidpp->battery.capacity = capacity; hidpp->battery.status = status; if (hidpp->battery.ps) power_supply_changed(hidpp->battery.ps); } return 0; } static enum power_supply_property hidpp_battery_props[] = { POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_SCOPE, POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER, POWER_SUPPLY_PROP_SERIAL_NUMBER, 0, /* placeholder for POWER_SUPPLY_PROP_CAPACITY, */ 0, /* placeholder for POWER_SUPPLY_PROP_CAPACITY_LEVEL, */ }; static int hidpp_battery_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { struct hidpp_device *hidpp = power_supply_get_drvdata(psy); int ret = 0; switch(psp) { case POWER_SUPPLY_PROP_STATUS: val->intval = hidpp->battery.status; break; case POWER_SUPPLY_PROP_CAPACITY: val->intval = hidpp->battery.capacity; break; case POWER_SUPPLY_PROP_CAPACITY_LEVEL: val->intval = hidpp->battery.level; break; case POWER_SUPPLY_PROP_SCOPE: val->intval = POWER_SUPPLY_SCOPE_DEVICE; break; case POWER_SUPPLY_PROP_ONLINE: val->intval = hidpp->battery.online; break; case POWER_SUPPLY_PROP_MODEL_NAME: if (!strncmp(hidpp->name, "Logitech ", 9)) val->strval = hidpp->name + 9; else val->strval = hidpp->name; break; case POWER_SUPPLY_PROP_MANUFACTURER: val->strval = "Logitech"; break; case POWER_SUPPLY_PROP_SERIAL_NUMBER: val->strval = hidpp->hid_dev->uniq; break; default: ret = -EINVAL; break; } return ret; } /* -------------------------------------------------------------------------- */ /* 0x2120: Hi-resolution scrolling */ /* -------------------------------------------------------------------------- */ #define HIDPP_PAGE_HI_RESOLUTION_SCROLLING 0x2120 #define CMD_HI_RESOLUTION_SCROLLING_SET_HIGHRES_SCROLLING_MODE 0x10 static int hidpp_hrs_set_highres_scrolling_mode(struct hidpp_device *hidpp, bool enabled, u8 *multiplier) { u8 feature_index; u8 feature_type; int ret; u8 params[1]; struct hidpp_report response; ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HI_RESOLUTION_SCROLLING, &feature_index, &feature_type); if (ret) return ret; params[0] = enabled ? BIT(0) : 0; ret = hidpp_send_fap_command_sync(hidpp, feature_index, CMD_HI_RESOLUTION_SCROLLING_SET_HIGHRES_SCROLLING_MODE, params, sizeof(params), &response); if (ret) return ret; *multiplier = response.fap.params[1]; return 0; } /* -------------------------------------------------------------------------- */ /* 0x2121: HiRes Wheel */ /* -------------------------------------------------------------------------- */ #define HIDPP_PAGE_HIRES_WHEEL 0x2121 #define CMD_HIRES_WHEEL_GET_WHEEL_CAPABILITY 0x00 #define CMD_HIRES_WHEEL_SET_WHEEL_MODE 0x20 static int hidpp_hrw_get_wheel_capability(struct hidpp_device *hidpp, u8 *multiplier) { u8 feature_index; u8 feature_type; int ret; struct hidpp_report response; ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HIRES_WHEEL, &feature_index, &feature_type); if (ret) goto return_default; ret = hidpp_send_fap_command_sync(hidpp, feature_index, CMD_HIRES_WHEEL_GET_WHEEL_CAPABILITY, NULL, 0, &response); if (ret) goto return_default; *multiplier = response.fap.params[0]; return 0; return_default: hid_warn(hidpp->hid_dev, "Couldn't get wheel multiplier (error %d)\n", ret); return ret; } static int hidpp_hrw_set_wheel_mode(struct hidpp_device *hidpp, bool invert, bool high_resolution, bool use_hidpp) { u8 feature_index; u8 feature_type; int ret; u8 params[1]; struct hidpp_report response; ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HIRES_WHEEL, &feature_index, &feature_type); if (ret) return ret; params[0] = (invert ? BIT(2) : 0) | (high_resolution ? BIT(1) : 0) | (use_hidpp ? BIT(0) : 0); return hidpp_send_fap_command_sync(hidpp, feature_index, CMD_HIRES_WHEEL_SET_WHEEL_MODE, params, sizeof(params), &response); } /* -------------------------------------------------------------------------- */ /* 0x4301: Solar Keyboard */ /* -------------------------------------------------------------------------- */ #define HIDPP_PAGE_SOLAR_KEYBOARD 0x4301 #define CMD_SOLAR_SET_LIGHT_MEASURE 0x00 #define EVENT_SOLAR_BATTERY_BROADCAST 0x00 #define EVENT_SOLAR_BATTERY_LIGHT_MEASURE 0x10 #define EVENT_SOLAR_CHECK_LIGHT_BUTTON 0x20 static int hidpp_solar_request_battery_event(struct hidpp_device *hidpp) { struct hidpp_report response; u8 params[2] = { 1, 1 }; u8 feature_type; int ret; if (hidpp->battery.feature_index == 0xff) { ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_SOLAR_KEYBOARD, &hidpp->battery.solar_feature_index, &feature_type); if (ret) return ret; } ret = hidpp_send_fap_command_sync(hidpp, hidpp->battery.solar_feature_index, CMD_SOLAR_SET_LIGHT_MEASURE, params, 2, &response); if (ret > 0) { hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n", __func__, ret); return -EPROTO; } if (ret) return ret; hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE; return 0; } static int hidpp_solar_battery_event(struct hidpp_device *hidpp, u8 *data, int size) { struct hidpp_report *report = (struct hidpp_report *)data; int capacity, lux, status; u8 function; function = report->fap.funcindex_clientid; if (report->fap.feature_index != hidpp->battery.solar_feature_index || !(function == EVENT_SOLAR_BATTERY_BROADCAST || function == EVENT_SOLAR_BATTERY_LIGHT_MEASURE || function == EVENT_SOLAR_CHECK_LIGHT_BUTTON)) return 0; capacity = report->fap.params[0]; switch (function) { case EVENT_SOLAR_BATTERY_LIGHT_MEASURE: lux = (report->fap.params[1] << 8) | report->fap.params[2]; if (lux > 200) status = POWER_SUPPLY_STATUS_CHARGING; else status = POWER_SUPPLY_STATUS_DISCHARGING; break; case EVENT_SOLAR_CHECK_LIGHT_BUTTON: default: if (capacity < hidpp->battery.capacity) status = POWER_SUPPLY_STATUS_DISCHARGING; else status = POWER_SUPPLY_STATUS_CHARGING; } if (capacity == 100) status = POWER_SUPPLY_STATUS_FULL; hidpp->battery.online = true; if (capacity != hidpp->battery.capacity || status != hidpp->battery.status) { hidpp->battery.capacity = capacity; hidpp->battery.status = status; if (hidpp->battery.ps) power_supply_changed(hidpp->battery.ps); } return 0; } /* -------------------------------------------------------------------------- */ /* 0x6010: Touchpad FW items */ /* -------------------------------------------------------------------------- */ #define HIDPP_PAGE_TOUCHPAD_FW_ITEMS 0x6010 #define CMD_TOUCHPAD_FW_ITEMS_SET 0x10 struct hidpp_touchpad_fw_items { uint8_t presence; uint8_t desired_state; uint8_t state; uint8_t persistent; }; /** * send a set state command to the device by reading the current items->state * field. items is then filled with the current state. */ static int hidpp_touchpad_fw_items_set(struct hidpp_device *hidpp, u8 feature_index, struct hidpp_touchpad_fw_items *items) { struct hidpp_report response; int ret; u8 *params = (u8 *)response.fap.params; ret = hidpp_send_fap_command_sync(hidpp, feature_index, CMD_TOUCHPAD_FW_ITEMS_SET, &items->state, 1, &response); if (ret > 0) { hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n", __func__, ret); return -EPROTO; } if (ret) return ret; items->presence = params[0]; items->desired_state = params[1]; items->state = params[2]; items->persistent = params[3]; return 0; } /* -------------------------------------------------------------------------- */ /* 0x6100: TouchPadRawXY */ /* -------------------------------------------------------------------------- */ #define HIDPP_PAGE_TOUCHPAD_RAW_XY 0x6100 #define CMD_TOUCHPAD_GET_RAW_INFO 0x01 #define CMD_TOUCHPAD_SET_RAW_REPORT_STATE 0x21 #define EVENT_TOUCHPAD_RAW_XY 0x00 #define TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT 0x01 #define TOUCHPAD_RAW_XY_ORIGIN_UPPER_LEFT 0x03 struct hidpp_touchpad_raw_info { u16 x_size; u16 y_size; u8 z_range; u8 area_range; u8 timestamp_unit; u8 maxcontacts; u8 origin; u16 res; }; struct hidpp_touchpad_raw_xy_finger { u8 contact_type; u8 contact_status; u16 x; u16 y; u8 z; u8 area; u8 finger_id; }; struct hidpp_touchpad_raw_xy { u16 timestamp; struct hidpp_touchpad_raw_xy_finger fingers[2]; u8 spurious_flag; u8 end_of_frame; u8 finger_count; u8 button; }; static int hidpp_touchpad_get_raw_info(struct hidpp_device *hidpp, u8 feature_index, struct hidpp_touchpad_raw_info *raw_info) { struct hidpp_report response; int ret; u8 *params = (u8 *)response.fap.params; ret = hidpp_send_fap_command_sync(hidpp, feature_index, CMD_TOUCHPAD_GET_RAW_INFO, NULL, 0, &response); if (ret > 0) { hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n", __func__, ret); return -EPROTO; } if (ret) return ret; raw_info->x_size = get_unaligned_be16(¶ms[0]); raw_info->y_size = get_unaligned_be16(¶ms[2]); raw_info->z_range = params[4]; raw_info->area_range = params[5]; raw_info->maxcontacts = params[7]; raw_info->origin = params[8]; /* res is given in unit per inch */ raw_info->res = get_unaligned_be16(¶ms[13]) * 2 / 51; return ret; } static int hidpp_touchpad_set_raw_report_state(struct hidpp_device *hidpp_dev, u8 feature_index, bool send_raw_reports, bool sensor_enhanced_settings) { struct hidpp_report response; /* * Params: * bit 0 - enable raw * bit 1 - 16bit Z, no area * bit 2 - enhanced sensitivity * bit 3 - width, height (4 bits each) instead of area * bit 4 - send raw + gestures (degrades smoothness) * remaining bits - reserved */ u8 params = send_raw_reports | (sensor_enhanced_settings << 2); return hidpp_send_fap_command_sync(hidpp_dev, feature_index, CMD_TOUCHPAD_SET_RAW_REPORT_STATE, ¶ms, 1, &response); } static void hidpp_touchpad_touch_event(u8 *data, struct hidpp_touchpad_raw_xy_finger *finger) { u8 x_m = data[0] << 2; u8 y_m = data[2] << 2; finger->x = x_m << 6 | data[1]; finger->y = y_m << 6 | data[3]; finger->contact_type = data[0] >> 6; finger->contact_status = data[2] >> 6; finger->z = data[4]; finger->area = data[5]; finger->finger_id = data[6] >> 4; } static void hidpp_touchpad_raw_xy_event(struct hidpp_device *hidpp_dev, u8 *data, struct hidpp_touchpad_raw_xy *raw_xy) { memset(raw_xy, 0, sizeof(struct hidpp_touchpad_raw_xy)); raw_xy->end_of_frame = data[8] & 0x01; raw_xy->spurious_flag = (data[8] >> 1) & 0x01; raw_xy->finger_count = data[15] & 0x0f; raw_xy->button = (data[8] >> 2) & 0x01; if (raw_xy->finger_count) { hidpp_touchpad_touch_event(&data[2], &raw_xy->fingers[0]); hidpp_touchpad_touch_event(&data[9], &raw_xy->fingers[1]); } } /* -------------------------------------------------------------------------- */ /* 0x8123: Force feedback support */ /* -------------------------------------------------------------------------- */ #define HIDPP_FF_GET_INFO 0x01 #define HIDPP_FF_RESET_ALL 0x11 #define HIDPP_FF_DOWNLOAD_EFFECT 0x21 #define HIDPP_FF_SET_EFFECT_STATE 0x31 #define HIDPP_FF_DESTROY_EFFECT 0x41 #define HIDPP_FF_GET_APERTURE 0x51 #define HIDPP_FF_SET_APERTURE 0x61 #define HIDPP_FF_GET_GLOBAL_GAINS 0x71 #define HIDPP_FF_SET_GLOBAL_GAINS 0x81 #define HIDPP_FF_EFFECT_STATE_GET 0x00 #define HIDPP_FF_EFFECT_STATE_STOP 0x01 #define HIDPP_FF_EFFECT_STATE_PLAY 0x02 #define HIDPP_FF_EFFECT_STATE_PAUSE 0x03 #define HIDPP_FF_EFFECT_CONSTANT 0x00 #define HIDPP_FF_EFFECT_PERIODIC_SINE 0x01 #define HIDPP_FF_EFFECT_PERIODIC_SQUARE 0x02 #define HIDPP_FF_EFFECT_PERIODIC_TRIANGLE 0x03 #define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP 0x04 #define HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN 0x05 #define HIDPP_FF_EFFECT_SPRING 0x06 #define HIDPP_FF_EFFECT_DAMPER 0x07 #define HIDPP_FF_EFFECT_FRICTION 0x08 #define HIDPP_FF_EFFECT_INERTIA 0x09 #define HIDPP_FF_EFFECT_RAMP 0x0A #define HIDPP_FF_EFFECT_AUTOSTART 0x80 #define HIDPP_FF_EFFECTID_NONE -1 #define HIDPP_FF_EFFECTID_AUTOCENTER -2 #define HIDPP_FF_MAX_PARAMS 20 #define HIDPP_FF_RESERVED_SLOTS 1 struct hidpp_ff_private_data { struct hidpp_device *hidpp; u8 feature_index; u8 version; u16 gain; s16 range; u8 slot_autocenter; u8 num_effects; int *effect_ids; struct workqueue_struct *wq; atomic_t workqueue_size; }; struct hidpp_ff_work_data { struct work_struct work; struct hidpp_ff_private_data *data; int effect_id; u8 command; u8 params[HIDPP_FF_MAX_PARAMS]; u8 size; }; static const signed short hidpp_ff_effects[] = { FF_CONSTANT, FF_PERIODIC, FF_SINE, FF_SQUARE, FF_SAW_UP, FF_SAW_DOWN, FF_TRIANGLE, FF_SPRING, FF_DAMPER, FF_AUTOCENTER, FF_GAIN, -1 }; static const signed short hidpp_ff_effects_v2[] = { FF_RAMP, FF_FRICTION, FF_INERTIA, -1 }; static const u8 HIDPP_FF_CONDITION_CMDS[] = { HIDPP_FF_EFFECT_SPRING, HIDPP_FF_EFFECT_FRICTION, HIDPP_FF_EFFECT_DAMPER, HIDPP_FF_EFFECT_INERTIA }; static const char *HIDPP_FF_CONDITION_NAMES[] = { "spring", "friction", "damper", "inertia" }; static u8 hidpp_ff_find_effect(struct hidpp_ff_private_data *data, int effect_id) { int i; for (i = 0; i < data->num_effects; i++) if (data->effect_ids[i] == effect_id) return i+1; return 0; } static void hidpp_ff_work_handler(struct work_struct *w) { struct hidpp_ff_work_data *wd = container_of(w, struct hidpp_ff_work_data, work); struct hidpp_ff_private_data *data = wd->data; struct hidpp_report response; u8 slot; int ret; /* add slot number if needed */ switch (wd->effect_id) { case HIDPP_FF_EFFECTID_AUTOCENTER: wd->params[0] = data->slot_autocenter; break; case HIDPP_FF_EFFECTID_NONE: /* leave slot as zero */ break; default: /* find current slot for effect */ wd->params[0] = hidpp_ff_find_effect(data, wd->effect_id); break; } /* send command and wait for reply */ ret = hidpp_send_fap_command_sync(data->hidpp, data->feature_index, wd->command, wd->params, wd->size, &response); if (ret) { hid_err(data->hidpp->hid_dev, "Failed to send command to device!\n"); goto out; } /* parse return data */ switch (wd->command) { case HIDPP_FF_DOWNLOAD_EFFECT: slot = response.fap.params[0]; if (slot > 0 && slot <= data->num_effects) { if (wd->effect_id >= 0) /* regular effect uploaded */ data->effect_ids[slot-1] = wd->effect_id; else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER) /* autocenter spring uploaded */ data->slot_autocenter = slot; } break; case HIDPP_FF_DESTROY_EFFECT: if (wd->effect_id >= 0) /* regular effect destroyed */ data->effect_ids[wd->params[0]-1] = -1; else if (wd->effect_id >= HIDPP_FF_EFFECTID_AUTOCENTER) /* autocenter spring destoyed */ data->slot_autocenter = 0; break; case HIDPP_FF_SET_GLOBAL_GAINS: data->gain = (wd->params[0] << 8) + wd->params[1]; break; case HIDPP_FF_SET_APERTURE: data->range = (wd->params[0] << 8) + wd->params[1]; break; default: /* no action needed */ break; } out: atomic_dec(&data->workqueue_size); kfree(wd); } static int hidpp_ff_queue_work(struct hidpp_ff_private_data *data, int effect_id, u8 command, u8 *params, u8 size) { struct hidpp_ff_work_data *wd = kzalloc(sizeof(*wd), GFP_KERNEL); int s; if (!wd) return -ENOMEM; INIT_WORK(&wd->work, hidpp_ff_work_handler); wd->data = data; wd->effect_id = effect_id; wd->command = command; wd->size = size; memcpy(wd->params, params, size); atomic_inc(&data->workqueue_size); queue_work(data->wq, &wd->work); /* warn about excessive queue size */ s = atomic_read(&data->workqueue_size); if (s >= 20 && s % 20 == 0) hid_warn(data->hidpp->hid_dev, "Force feedback command queue contains %d commands, causing substantial delays!", s); return 0; } static int hidpp_ff_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old) { struct hidpp_ff_private_data *data = dev->ff->private; u8 params[20]; u8 size; int force; /* set common parameters */ params[2] = effect->replay.length >> 8; params[3] = effect->replay.length & 255; params[4] = effect->replay.delay >> 8; params[5] = effect->replay.delay & 255; switch (effect->type) { case FF_CONSTANT: force = (effect->u.constant.level * fixp_sin16((effect->direction * 360) >> 16)) >> 15; params[1] = HIDPP_FF_EFFECT_CONSTANT; params[6] = force >> 8; params[7] = force & 255; params[8] = effect->u.constant.envelope.attack_level >> 7; params[9] = effect->u.constant.envelope.attack_length >> 8; params[10] = effect->u.constant.envelope.attack_length & 255; params[11] = effect->u.constant.envelope.fade_level >> 7; params[12] = effect->u.constant.envelope.fade_length >> 8; params[13] = effect->u.constant.envelope.fade_length & 255; size = 14; dbg_hid("Uploading constant force level=%d in dir %d = %d\n", effect->u.constant.level, effect->direction, force); dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n", effect->u.constant.envelope.attack_level, effect->u.constant.envelope.attack_length, effect->u.constant.envelope.fade_level, effect->u.constant.envelope.fade_length); break; case FF_PERIODIC: { switch (effect->u.periodic.waveform) { case FF_SINE: params[1] = HIDPP_FF_EFFECT_PERIODIC_SINE; break; case FF_SQUARE: params[1] = HIDPP_FF_EFFECT_PERIODIC_SQUARE; break; case FF_SAW_UP: params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHUP; break; case FF_SAW_DOWN: params[1] = HIDPP_FF_EFFECT_PERIODIC_SAWTOOTHDOWN; break; case FF_TRIANGLE: params[1] = HIDPP_FF_EFFECT_PERIODIC_TRIANGLE; break; default: hid_err(data->hidpp->hid_dev, "Unexpected periodic waveform type %i!\n", effect->u.periodic.waveform); return -EINVAL; } force = (effect->u.periodic.magnitude * fixp_sin16((effect->direction * 360) >> 16)) >> 15; params[6] = effect->u.periodic.magnitude >> 8; params[7] = effect->u.periodic.magnitude & 255; params[8] = effect->u.periodic.offset >> 8; params[9] = effect->u.periodic.offset & 255; params[10] = effect->u.periodic.period >> 8; params[11] = effect->u.periodic.period & 255; params[12] = effect->u.periodic.phase >> 8; params[13] = effect->u.periodic.phase & 255; params[14] = effect->u.periodic.envelope.attack_level >> 7; params[15] = effect->u.periodic.envelope.attack_length >> 8; params[16] = effect->u.periodic.envelope.attack_length & 255; params[17] = effect->u.periodic.envelope.fade_level >> 7; params[18] = effect->u.periodic.envelope.fade_length >> 8; params[19] = effect->u.periodic.envelope.fade_length & 255; size = 20; dbg_hid("Uploading periodic force mag=%d/dir=%d, offset=%d, period=%d ms, phase=%d\n", effect->u.periodic.magnitude, effect->direction, effect->u.periodic.offset, effect->u.periodic.period, effect->u.periodic.phase); dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n", effect->u.periodic.envelope.attack_level, effect->u.periodic.envelope.attack_length, effect->u.periodic.envelope.fade_level, effect->u.periodic.envelope.fade_length); break; } case FF_RAMP: params[1] = HIDPP_FF_EFFECT_RAMP; force = (effect->u.ramp.start_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15; params[6] = force >> 8; params[7] = force & 255; force = (effect->u.ramp.end_level * fixp_sin16((effect->direction * 360) >> 16)) >> 15; params[8] = force >> 8; params[9] = force & 255; params[10] = effect->u.ramp.envelope.attack_level >> 7; params[11] = effect->u.ramp.envelope.attack_length >> 8; params[12] = effect->u.ramp.envelope.attack_length & 255; params[13] = effect->u.ramp.envelope.fade_level >> 7; params[14] = effect->u.ramp.envelope.fade_length >> 8; params[15] = effect->u.ramp.envelope.fade_length & 255; size = 16; dbg_hid("Uploading ramp force level=%d -> %d in dir %d = %d\n", effect->u.ramp.start_level, effect->u.ramp.end_level, effect->direction, force); dbg_hid(" envelope attack=(%d, %d ms) fade=(%d, %d ms)\n", effect->u.ramp.envelope.attack_level, effect->u.ramp.envelope.attack_length, effect->u.ramp.envelope.fade_level, effect->u.ramp.envelope.fade_length); break; case FF_FRICTION: case FF_INERTIA: case FF_SPRING: case FF_DAMPER: params[1] = HIDPP_FF_CONDITION_CMDS[effect->type - FF_SPRING]; params[6] = effect->u.condition[0].left_saturation >> 9; params[7] = (effect->u.condition[0].left_saturation >> 1) & 255; params[8] = effect->u.condition[0].left_coeff >> 8; params[9] = effect->u.condition[0].left_coeff & 255; params[10] = effect->u.condition[0].deadband >> 9; params[11] = (effect->u.condition[0].deadband >> 1) & 255; params[12] = effect->u.condition[0].center >> 8; params[13] = effect->u.condition[0].center & 255; params[14] = effect->u.condition[0].right_coeff >> 8; params[15] = effect->u.condition[0].right_coeff & 255; params[16] = effect->u.condition[0].right_saturation >> 9; params[17] = (effect->u.condition[0].right_saturation >> 1) & 255; size = 18; dbg_hid("Uploading %s force left coeff=%d, left sat=%d, right coeff=%d, right sat=%d\n", HIDPP_FF_CONDITION_NAMES[effect->type - FF_SPRING], effect->u.condition[0].left_coeff, effect->u.condition[0].left_saturation, effect->u.condition[0].right_coeff, effect->u.condition[0].right_saturation); dbg_hid(" deadband=%d, center=%d\n", effect->u.condition[0].deadband, effect->u.condition[0].center); break; default: hid_err(data->hidpp->hid_dev, "Unexpected force type %i!\n", effect->type); return -EINVAL; } return hidpp_ff_queue_work(data, effect->id, HIDPP_FF_DOWNLOAD_EFFECT, params, size); } static int hidpp_ff_playback(struct input_dev *dev, int effect_id, int value) { struct hidpp_ff_private_data *data = dev->ff->private; u8 params[2]; params[1] = value ? HIDPP_FF_EFFECT_STATE_PLAY : HIDPP_FF_EFFECT_STATE_STOP; dbg_hid("St%sing playback of effect %d.\n", value?"art":"opp", effect_id); return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_SET_EFFECT_STATE, params, ARRAY_SIZE(params)); } static int hidpp_ff_erase_effect(struct input_dev *dev, int effect_id) { struct hidpp_ff_private_data *data = dev->ff->private; u8 slot = 0; dbg_hid("Erasing effect %d.\n", effect_id); return hidpp_ff_queue_work(data, effect_id, HIDPP_FF_DESTROY_EFFECT, &slot, 1); } static void hidpp_ff_set_autocenter(struct input_dev *dev, u16 magnitude) { struct hidpp_ff_private_data *data = dev->ff->private; u8 params[18]; dbg_hid("Setting autocenter to %d.\n", magnitude); /* start a standard spring effect */ params[1] = HIDPP_FF_EFFECT_SPRING | HIDPP_FF_EFFECT_AUTOSTART; /* zero delay and duration */ params[2] = params[3] = params[4] = params[5] = 0; /* set coeff to 25% of saturation */ params[8] = params[14] = magnitude >> 11; params[9] = params[15] = (magnitude >> 3) & 255; params[6] = params[16] = magnitude >> 9; params[7] = params[17] = (magnitude >> 1) & 255; /* zero deadband and center */ params[10] = params[11] = params[12] = params[13] = 0; hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_AUTOCENTER, HIDPP_FF_DOWNLOAD_EFFECT, params, ARRAY_SIZE(params)); } static void hidpp_ff_set_gain(struct input_dev *dev, u16 gain) { struct hidpp_ff_private_data *data = dev->ff->private; u8 params[4]; dbg_hid("Setting gain to %d.\n", gain); params[0] = gain >> 8; params[1] = gain & 255; params[2] = 0; /* no boost */ params[3] = 0; hidpp_ff_queue_work(data, HIDPP_FF_EFFECTID_NONE, HIDPP_FF_SET_GLOBAL_GAINS, params, ARRAY_SIZE(params)); } static ssize_t hidpp_ff_range_show(struct device *dev, struct device_attribute *attr, char *buf) { struct hid_device *hid = to_hid_device(dev); struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); struct input_dev *idev = hidinput->input; struct hidpp_ff_private_data *data = idev->ff->private; return scnprintf(buf, PAGE_SIZE, "%u\n", data->range); } static ssize_t hidpp_ff_range_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct hid_device *hid = to_hid_device(dev); struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); struct input_dev *idev = hidinput->input; struct hidpp_ff_private_data *data = idev->ff->private; u8 params[2]; int range = simple_strtoul(buf, NULL, 10); range = clamp(range, 180, 900); params[0] = range >> 8; params[1] = range & 0x00FF; hidpp_ff_queue_work(data, -1, HIDPP_FF_SET_APERTURE, params, ARRAY_SIZE(params)); return count; } static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, hidpp_ff_range_show, hidpp_ff_range_store); static void hidpp_ff_destroy(struct ff_device *ff) { struct hidpp_ff_private_data *data = ff->private; kfree(data->effect_ids); } static int hidpp_ff_init(struct hidpp_device *hidpp, u8 feature_index) { struct hid_device *hid = hidpp->hid_dev; struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); struct input_dev *dev = hidinput->input; const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor); const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice); struct ff_device *ff; struct hidpp_report response; struct hidpp_ff_private_data *data; int error, j, num_slots; u8 version; if (!dev) { hid_err(hid, "Struct input_dev not set!\n"); return -EINVAL; } /* Get firmware release */ version = bcdDevice & 255; /* Set supported force feedback capabilities */ for (j = 0; hidpp_ff_effects[j] >= 0; j++) set_bit(hidpp_ff_effects[j], dev->ffbit); if (version > 1) for (j = 0; hidpp_ff_effects_v2[j] >= 0; j++) set_bit(hidpp_ff_effects_v2[j], dev->ffbit); /* Read number of slots available in device */ error = hidpp_send_fap_command_sync(hidpp, feature_index, HIDPP_FF_GET_INFO, NULL, 0, &response); if (error) { if (error < 0) return error; hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n", __func__, error); return -EPROTO; } num_slots = response.fap.params[0] - HIDPP_FF_RESERVED_SLOTS; error = input_ff_create(dev, num_slots); if (error) { hid_err(dev, "Failed to create FF device!\n"); return error; } data = kzalloc(sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; data->effect_ids = kcalloc(num_slots, sizeof(int), GFP_KERNEL); if (!data->effect_ids) { kfree(data); return -ENOMEM; } data->hidpp = hidpp; data->feature_index = feature_index; data->version = version; data->slot_autocenter = 0; data->num_effects = num_slots; for (j = 0; j < num_slots; j++) data->effect_ids[j] = -1; ff = dev->ff; ff->private = data; ff->upload = hidpp_ff_upload_effect; ff->erase = hidpp_ff_erase_effect; ff->playback = hidpp_ff_playback; ff->set_gain = hidpp_ff_set_gain; ff->set_autocenter = hidpp_ff_set_autocenter; ff->destroy = hidpp_ff_destroy; /* reset all forces */ error = hidpp_send_fap_command_sync(hidpp, feature_index, HIDPP_FF_RESET_ALL, NULL, 0, &response); /* Read current Range */ error = hidpp_send_fap_command_sync(hidpp, feature_index, HIDPP_FF_GET_APERTURE, NULL, 0, &response); if (error) hid_warn(hidpp->hid_dev, "Failed to read range from device!\n"); data->range = error ? 900 : get_unaligned_be16(&response.fap.params[0]); /* Create sysfs interface */ error = device_create_file(&(hidpp->hid_dev->dev), &dev_attr_range); if (error) hid_warn(hidpp->hid_dev, "Unable to create sysfs interface for \"range\", errno %d!\n", error); /* Read the current gain values */ error = hidpp_send_fap_command_sync(hidpp, feature_index, HIDPP_FF_GET_GLOBAL_GAINS, NULL, 0, &response); if (error) hid_warn(hidpp->hid_dev, "Failed to read gain values from device!\n"); data->gain = error ? 0xffff : get_unaligned_be16(&response.fap.params[0]); /* ignore boost value at response.fap.params[2] */ /* init the hardware command queue */ data->wq = create_singlethread_workqueue("hidpp-ff-sendqueue"); atomic_set(&data->workqueue_size, 0); /* initialize with zero autocenter to get wheel in usable state */ hidpp_ff_set_autocenter(dev, 0); hid_info(hid, "Force feedback support loaded (firmware release %d).\n", version); return 0; } static int hidpp_ff_deinit(struct hid_device *hid) { struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); struct input_dev *dev = hidinput->input; struct hidpp_ff_private_data *data; if (!dev) { hid_err(hid, "Struct input_dev not found!\n"); return -EINVAL; } hid_info(hid, "Unloading HID++ force feedback.\n"); data = dev->ff->private; if (!data) { hid_err(hid, "Private data not found!\n"); return -EINVAL; } destroy_workqueue(data->wq); device_remove_file(&hid->dev, &dev_attr_range); return 0; } /* ************************************************************************** */ /* */ /* Device Support */ /* */ /* ************************************************************************** */ /* -------------------------------------------------------------------------- */ /* Touchpad HID++ devices */ /* -------------------------------------------------------------------------- */ #define WTP_MANUAL_RESOLUTION 39 struct wtp_data { struct input_dev *input; u16 x_size, y_size; u8 finger_count; u8 mt_feature_index; u8 button_feature_index; u8 maxcontacts; bool flip_y; unsigned int resolution; }; static int wtp_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { return -1; } static void wtp_populate_input(struct hidpp_device *hidpp, struct input_dev *input_dev, bool origin_is_hid_core) { struct wtp_data *wd = hidpp->private_data; __set_bit(EV_ABS, input_dev->evbit); __set_bit(EV_KEY, input_dev->evbit); __clear_bit(EV_REL, input_dev->evbit); __clear_bit(EV_LED, input_dev->evbit); input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0, wd->x_size, 0, 0); input_abs_set_res(input_dev, ABS_MT_POSITION_X, wd->resolution); input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0, wd->y_size, 0, 0); input_abs_set_res(input_dev, ABS_MT_POSITION_Y, wd->resolution); /* Max pressure is not given by the devices, pick one */ input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, 50, 0, 0); input_set_capability(input_dev, EV_KEY, BTN_LEFT); if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) input_set_capability(input_dev, EV_KEY, BTN_RIGHT); else __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit); input_mt_init_slots(input_dev, wd->maxcontacts, INPUT_MT_POINTER | INPUT_MT_DROP_UNUSED); wd->input = input_dev; } static void wtp_touch_event(struct wtp_data *wd, struct hidpp_touchpad_raw_xy_finger *touch_report) { int slot; if (!touch_report->finger_id || touch_report->contact_type) /* no actual data */ return; slot = input_mt_get_slot_by_key(wd->input, touch_report->finger_id); input_mt_slot(wd->input, slot); input_mt_report_slot_state(wd->input, MT_TOOL_FINGER, touch_report->contact_status); if (touch_report->contact_status) { input_event(wd->input, EV_ABS, ABS_MT_POSITION_X, touch_report->x); input_event(wd->input, EV_ABS, ABS_MT_POSITION_Y, wd->flip_y ? wd->y_size - touch_report->y : touch_report->y); input_event(wd->input, EV_ABS, ABS_MT_PRESSURE, touch_report->area); } } static void wtp_send_raw_xy_event(struct hidpp_device *hidpp, struct hidpp_touchpad_raw_xy *raw) { struct wtp_data *wd = hidpp->private_data; int i; for (i = 0; i < 2; i++) wtp_touch_event(wd, &(raw->fingers[i])); if (raw->end_of_frame && !(hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS)) input_event(wd->input, EV_KEY, BTN_LEFT, raw->button); if (raw->end_of_frame || raw->finger_count <= 2) { input_mt_sync_frame(wd->input); input_sync(wd->input); } } static int wtp_mouse_raw_xy_event(struct hidpp_device *hidpp, u8 *data) { struct wtp_data *wd = hidpp->private_data; u8 c1_area = ((data[7] & 0xf) * (data[7] & 0xf) + (data[7] >> 4) * (data[7] >> 4)) / 2; u8 c2_area = ((data[13] & 0xf) * (data[13] & 0xf) + (data[13] >> 4) * (data[13] >> 4)) / 2; struct hidpp_touchpad_raw_xy raw = { .timestamp = data[1], .fingers = { { .contact_type = 0, .contact_status = !!data[7], .x = get_unaligned_le16(&data[3]), .y = get_unaligned_le16(&data[5]), .z = c1_area, .area = c1_area, .finger_id = data[2], }, { .contact_type = 0, .contact_status = !!data[13], .x = get_unaligned_le16(&data[9]), .y = get_unaligned_le16(&data[11]), .z = c2_area, .area = c2_area, .finger_id = data[8], } }, .finger_count = wd->maxcontacts, .spurious_flag = 0, .end_of_frame = (data[0] >> 7) == 0, .button = data[0] & 0x01, }; wtp_send_raw_xy_event(hidpp, &raw); return 1; } static int wtp_raw_event(struct hid_device *hdev, u8 *data, int size) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); struct wtp_data *wd = hidpp->private_data; struct hidpp_report *report = (struct hidpp_report *)data; struct hidpp_touchpad_raw_xy raw; if (!wd || !wd->input) return 1; switch (data[0]) { case 0x02: if (size < 2) { hid_err(hdev, "Received HID report of bad size (%d)", size); return 1; } if (hidpp->quirks & HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS) { input_event(wd->input, EV_KEY, BTN_LEFT, !!(data[1] & 0x01)); input_event(wd->input, EV_KEY, BTN_RIGHT, !!(data[1] & 0x02)); input_sync(wd->input); return 0; } else { if (size < 21) return 1; return wtp_mouse_raw_xy_event(hidpp, &data[7]); } case REPORT_ID_HIDPP_LONG: /* size is already checked in hidpp_raw_event. */ if ((report->fap.feature_index != wd->mt_feature_index) || (report->fap.funcindex_clientid != EVENT_TOUCHPAD_RAW_XY)) return 1; hidpp_touchpad_raw_xy_event(hidpp, data + 4, &raw); wtp_send_raw_xy_event(hidpp, &raw); return 0; } return 0; } static int wtp_get_config(struct hidpp_device *hidpp) { struct wtp_data *wd = hidpp->private_data; struct hidpp_touchpad_raw_info raw_info = {0}; u8 feature_type; int ret; ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_TOUCHPAD_RAW_XY, &wd->mt_feature_index, &feature_type); if (ret) /* means that the device is not powered up */ return ret; ret = hidpp_touchpad_get_raw_info(hidpp, wd->mt_feature_index, &raw_info); if (ret) return ret; wd->x_size = raw_info.x_size; wd->y_size = raw_info.y_size; wd->maxcontacts = raw_info.maxcontacts; wd->flip_y = raw_info.origin == TOUCHPAD_RAW_XY_ORIGIN_LOWER_LEFT; wd->resolution = raw_info.res; if (!wd->resolution) wd->resolution = WTP_MANUAL_RESOLUTION; return 0; } static int wtp_allocate(struct hid_device *hdev, const struct hid_device_id *id) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); struct wtp_data *wd; wd = devm_kzalloc(&hdev->dev, sizeof(struct wtp_data), GFP_KERNEL); if (!wd) return -ENOMEM; hidpp->private_data = wd; return 0; }; static int wtp_connect(struct hid_device *hdev, bool connected) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); struct wtp_data *wd = hidpp->private_data; int ret; if (!wd->x_size) { ret = wtp_get_config(hidpp); if (ret) { hid_err(hdev, "Can not get wtp config: %d\n", ret); return ret; } } return hidpp_touchpad_set_raw_report_state(hidpp, wd->mt_feature_index, true, true); } /* ------------------------------------------------------------------------- */ /* Logitech M560 devices */ /* ------------------------------------------------------------------------- */ /* * Logitech M560 protocol overview * * The Logitech M560 mouse, is designed for windows 8. When the middle and/or * the sides buttons are pressed, it sends some keyboard keys events * instead of buttons ones. * To complicate things further, the middle button keys sequence * is different from the odd press and the even press. * * forward button -> Super_R * backward button -> Super_L+'d' (press only) * middle button -> 1st time: Alt_L+SuperL+XF86TouchpadOff (press only) * 2nd time: left-click (press only) * NB: press-only means that when the button is pressed, the * KeyPress/ButtonPress and KeyRelease/ButtonRelease events are generated * together sequentially; instead when the button is released, no event is * generated ! * * With the command * 10<xx>0a 3500af03 (where <xx> is the mouse id), * the mouse reacts differently: * - it never sends a keyboard key event * - for the three mouse button it sends: * middle button press 11<xx>0a 3500af00... * side 1 button (forward) press 11<xx>0a 3500b000... * side 2 button (backward) press 11<xx>0a 3500ae00... * middle/side1/side2 button release 11<xx>0a 35000000... */ static const u8 m560_config_parameter[] = {0x00, 0xaf, 0x03}; struct m560_private_data { struct input_dev *input; }; /* how buttons are mapped in the report */ #define M560_MOUSE_BTN_LEFT 0x01 #define M560_MOUSE_BTN_RIGHT 0x02 #define M560_MOUSE_BTN_WHEEL_LEFT 0x08 #define M560_MOUSE_BTN_WHEEL_RIGHT 0x10 #define M560_SUB_ID 0x0a #define M560_BUTTON_MODE_REGISTER 0x35 static int m560_send_config_command(struct hid_device *hdev, bool connected) { struct hidpp_report response; struct hidpp_device *hidpp_dev; hidpp_dev = hid_get_drvdata(hdev); return hidpp_send_rap_command_sync( hidpp_dev, REPORT_ID_HIDPP_SHORT, M560_SUB_ID, M560_BUTTON_MODE_REGISTER, (u8 *)m560_config_parameter, sizeof(m560_config_parameter), &response ); } static int m560_allocate(struct hid_device *hdev) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); struct m560_private_data *d; d = devm_kzalloc(&hdev->dev, sizeof(struct m560_private_data), GFP_KERNEL); if (!d) return -ENOMEM; hidpp->private_data = d; return 0; }; static int m560_raw_event(struct hid_device *hdev, u8 *data, int size) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); struct m560_private_data *mydata = hidpp->private_data; /* sanity check */ if (!mydata || !mydata->input) { hid_err(hdev, "error in parameter\n"); return -EINVAL; } if (size < 7) { hid_err(hdev, "error in report\n"); return 0; } if (data[0] == REPORT_ID_HIDPP_LONG && data[2] == M560_SUB_ID && data[6] == 0x00) { /* * m560 mouse report for middle, forward and backward button * * data[0] = 0x11 * data[1] = device-id * data[2] = 0x0a * data[5] = 0xaf -> middle * 0xb0 -> forward * 0xae -> backward * 0x00 -> release all * data[6] = 0x00 */ switch (data[5]) { case 0xaf: input_report_key(mydata->input, BTN_MIDDLE, 1); break; case 0xb0: input_report_key(mydata->input, BTN_FORWARD, 1); break; case 0xae: input_report_key(mydata->input, BTN_BACK, 1); break; case 0x00: input_report_key(mydata->input, BTN_BACK, 0); input_report_key(mydata->input, BTN_FORWARD, 0); input_report_key(mydata->input, BTN_MIDDLE, 0); break; default: hid_err(hdev, "error in report\n"); return 0; } input_sync(mydata->input); } else if (data[0] == 0x02) { /* * Logitech M560 mouse report * * data[0] = type (0x02) * data[1..2] = buttons * data[3..5] = xy * data[6] = wheel */ int v; input_report_key(mydata->input, BTN_LEFT, !!(data[1] & M560_MOUSE_BTN_LEFT)); input_report_key(mydata->input, BTN_RIGHT, !!(data[1] & M560_MOUSE_BTN_RIGHT)); if (data[1] & M560_MOUSE_BTN_WHEEL_LEFT) { input_report_rel(mydata->input, REL_HWHEEL, -1); input_report_rel(mydata->input, REL_HWHEEL_HI_RES, -120); } else if (data[1] & M560_MOUSE_BTN_WHEEL_RIGHT) { input_report_rel(mydata->input, REL_HWHEEL, 1); input_report_rel(mydata->input, REL_HWHEEL_HI_RES, 120); } v = hid_snto32(hid_field_extract(hdev, data+3, 0, 12), 12); input_report_rel(mydata->input, REL_X, v); v = hid_snto32(hid_field_extract(hdev, data+3, 12, 12), 12); input_report_rel(mydata->input, REL_Y, v); v = hid_snto32(data[6], 8); hidpp_scroll_counter_handle_scroll( &hidpp->vertical_wheel_counter, v); input_sync(mydata->input); } return 1; } static void m560_populate_input(struct hidpp_device *hidpp, struct input_dev *input_dev, bool origin_is_hid_core) { struct m560_private_data *mydata = hidpp->private_data; mydata->input = input_dev; __set_bit(EV_KEY, mydata->input->evbit); __set_bit(BTN_MIDDLE, mydata->input->keybit); __set_bit(BTN_RIGHT, mydata->input->keybit); __set_bit(BTN_LEFT, mydata->input->keybit); __set_bit(BTN_BACK, mydata->input->keybit); __set_bit(BTN_FORWARD, mydata->input->keybit); __set_bit(EV_REL, mydata->input->evbit); __set_bit(REL_X, mydata->input->relbit); __set_bit(REL_Y, mydata->input->relbit); __set_bit(REL_WHEEL, mydata->input->relbit); __set_bit(REL_HWHEEL, mydata->input->relbit); __set_bit(REL_WHEEL_HI_RES, mydata->input->relbit); __set_bit(REL_HWHEEL_HI_RES, mydata->input->relbit); } static int m560_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { return -1; } /* ------------------------------------------------------------------------- */ /* Logitech K400 devices */ /* ------------------------------------------------------------------------- */ /* * The Logitech K400 keyboard has an embedded touchpad which is seen * as a mouse from the OS point of view. There is a hardware shortcut to disable * tap-to-click but the setting is not remembered accross reset, annoying some * users. * * We can toggle this feature from the host by using the feature 0x6010: * Touchpad FW items */ struct k400_private_data { u8 feature_index; }; static int k400_disable_tap_to_click(struct hidpp_device *hidpp) { struct k400_private_data *k400 = hidpp->private_data; struct hidpp_touchpad_fw_items items = {}; int ret; u8 feature_type; if (!k400->feature_index) { ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_TOUCHPAD_FW_ITEMS, &k400->feature_index, &feature_type); if (ret) /* means that the device is not powered up */ return ret; } ret = hidpp_touchpad_fw_items_set(hidpp, k400->feature_index, &items); if (ret) return ret; return 0; } static int k400_allocate(struct hid_device *hdev) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); struct k400_private_data *k400; k400 = devm_kzalloc(&hdev->dev, sizeof(struct k400_private_data), GFP_KERNEL); if (!k400) return -ENOMEM; hidpp->private_data = k400; return 0; }; static int k400_connect(struct hid_device *hdev, bool connected) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); if (!disable_tap_to_click) return 0; return k400_disable_tap_to_click(hidpp); } /* ------------------------------------------------------------------------- */ /* Logitech G920 Driving Force Racing Wheel for Xbox One */ /* ------------------------------------------------------------------------- */ #define HIDPP_PAGE_G920_FORCE_FEEDBACK 0x8123 static int g920_get_config(struct hidpp_device *hidpp) { u8 feature_type; u8 feature_index; int ret; /* Find feature and store for later use */ ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_G920_FORCE_FEEDBACK, &feature_index, &feature_type); if (ret) return ret; ret = hidpp_ff_init(hidpp, feature_index); if (ret) hid_warn(hidpp->hid_dev, "Unable to initialize force feedback support, errno %d\n", ret); return 0; } /* -------------------------------------------------------------------------- */ /* High-resolution scroll wheels */ /* -------------------------------------------------------------------------- */ static int hi_res_scroll_enable(struct hidpp_device *hidpp) { int ret; u8 multiplier = 1; if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_X2121) { ret = hidpp_hrw_set_wheel_mode(hidpp, false, true, false); if (ret == 0) ret = hidpp_hrw_get_wheel_capability(hidpp, &multiplier); } else if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_X2120) { ret = hidpp_hrs_set_highres_scrolling_mode(hidpp, true, &multiplier); } else /* if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_1P0) */ { ret = hidpp10_enable_scrolling_acceleration(hidpp); multiplier = 8; } if (ret) return ret; if (multiplier == 0) multiplier = 1; hidpp->vertical_wheel_counter.wheel_multiplier = multiplier; hid_info(hidpp->hid_dev, "multiplier = %d\n", multiplier); return 0; } /* -------------------------------------------------------------------------- */ /* Generic HID++ devices */ /* -------------------------------------------------------------------------- */ static int hidpp_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) return wtp_input_mapping(hdev, hi, field, usage, bit, max); else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560 && field->application != HID_GD_MOUSE) return m560_input_mapping(hdev, hi, field, usage, bit, max); return 0; } static int hidpp_input_mapped(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); /* Ensure that Logitech G920 is not given a default fuzz/flat value */ if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) { if (usage->type == EV_ABS && (usage->code == ABS_X || usage->code == ABS_Y || usage->code == ABS_Z || usage->code == ABS_RZ)) { field->application = HID_GD_MULTIAXIS; } } return 0; } static void hidpp_populate_input(struct hidpp_device *hidpp, struct input_dev *input, bool origin_is_hid_core) { if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) wtp_populate_input(hidpp, input, origin_is_hid_core); else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) m560_populate_input(hidpp, input, origin_is_hid_core); if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL) hidpp->vertical_wheel_counter.dev = input; } static int hidpp_input_configured(struct hid_device *hdev, struct hid_input *hidinput) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); struct input_dev *input = hidinput->input; hidpp_populate_input(hidpp, input, true); return 0; } static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data, int size) { struct hidpp_report *question = hidpp->send_receive_buf; struct hidpp_report *answer = hidpp->send_receive_buf; struct hidpp_report *report = (struct hidpp_report *)data; int ret; /* * If the mutex is locked then we have a pending answer from a * previously sent command. */ if (unlikely(mutex_is_locked(&hidpp->send_mutex))) { /* * Check for a correct hidpp20 answer or the corresponding * error */ if (hidpp_match_answer(question, report) || hidpp_match_error(question, report)) { *answer = *report; hidpp->answer_available = true; wake_up(&hidpp->wait); /* * This was an answer to a command that this driver sent * We return 1 to hid-core to avoid forwarding the * command upstream as it has been treated by the driver */ return 1; } } if (unlikely(hidpp_report_is_connect_event(report))) { atomic_set(&hidpp->connected, !(report->rap.params[0] & (1 << 6))); if (schedule_work(&hidpp->work) == 0) dbg_hid("%s: connect event already queued\n", __func__); return 1; } if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) { ret = hidpp20_battery_event(hidpp, data, size); if (ret != 0) return ret; ret = hidpp_solar_battery_event(hidpp, data, size); if (ret != 0) return ret; } if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) { ret = hidpp10_battery_event(hidpp, data, size); if (ret != 0) return ret; } return 0; } static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); int ret = 0; /* Generic HID++ processing. */ switch (data[0]) { case REPORT_ID_HIDPP_VERY_LONG: if (size != HIDPP_REPORT_VERY_LONG_LENGTH) { hid_err(hdev, "received hid++ report of bad size (%d)", size); return 1; } ret = hidpp_raw_hidpp_event(hidpp, data, size); break; case REPORT_ID_HIDPP_LONG: if (size != HIDPP_REPORT_LONG_LENGTH) { hid_err(hdev, "received hid++ report of bad size (%d)", size); return 1; } ret = hidpp_raw_hidpp_event(hidpp, data, size); break; case REPORT_ID_HIDPP_SHORT: if (size != HIDPP_REPORT_SHORT_LENGTH) { hid_err(hdev, "received hid++ report of bad size (%d)", size); return 1; } ret = hidpp_raw_hidpp_event(hidpp, data, size); break; } /* If no report is available for further processing, skip calling * raw_event of subclasses. */ if (ret != 0) return ret; if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) return wtp_raw_event(hdev, data, size); else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) return m560_raw_event(hdev, data, size); return 0; } static int hidpp_event(struct hid_device *hdev, struct hid_field *field, struct hid_usage *usage, __s32 value) { /* This function will only be called for scroll events, due to the * restriction imposed in hidpp_usages. */ struct hidpp_device *hidpp = hid_get_drvdata(hdev); struct hidpp_scroll_counter *counter = &hidpp->vertical_wheel_counter; /* A scroll event may occur before the multiplier has been retrieved or * the input device set, or high-res scroll enabling may fail. In such * cases we must return early (falling back to default behaviour) to * avoid a crash in hidpp_scroll_counter_handle_scroll. */ if (!(hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL) || value == 0 || counter->dev == NULL || counter->wheel_multiplier == 0) return 0; hidpp_scroll_counter_handle_scroll(counter, value); return 1; } static int hidpp_initialize_battery(struct hidpp_device *hidpp) { static atomic_t battery_no = ATOMIC_INIT(0); struct power_supply_config cfg = { .drv_data = hidpp }; struct power_supply_desc *desc = &hidpp->battery.desc; enum power_supply_property *battery_props; struct hidpp_battery *battery; unsigned int num_battery_props; unsigned long n; int ret; if (hidpp->battery.ps) return 0; hidpp->battery.feature_index = 0xff; hidpp->battery.solar_feature_index = 0xff; if (hidpp->protocol_major >= 2) { if (hidpp->quirks & HIDPP_QUIRK_CLASS_K750) ret = hidpp_solar_request_battery_event(hidpp); else ret = hidpp20_query_battery_info(hidpp); if (ret) return ret; hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP20_BATTERY; } else { ret = hidpp10_query_battery_status(hidpp); if (ret) { ret = hidpp10_query_battery_mileage(hidpp); if (ret) return -ENOENT; hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_MILEAGE; } else { hidpp->capabilities |= HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS; } hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP10_BATTERY; } battery_props = devm_kmemdup(&hidpp->hid_dev->dev, hidpp_battery_props, sizeof(hidpp_battery_props), GFP_KERNEL); if (!battery_props) return -ENOMEM; num_battery_props = ARRAY_SIZE(hidpp_battery_props) - 2; if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE) battery_props[num_battery_props++] = POWER_SUPPLY_PROP_CAPACITY; if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_LEVEL_STATUS) battery_props[num_battery_props++] = POWER_SUPPLY_PROP_CAPACITY_LEVEL; battery = &hidpp->battery; n = atomic_inc_return(&battery_no) - 1; desc->properties = battery_props; desc->num_properties = num_battery_props; desc->get_property = hidpp_battery_get_property; sprintf(battery->name, "hidpp_battery_%ld", n); desc->name = battery->name; desc->type = POWER_SUPPLY_TYPE_BATTERY; desc->use_for_apm = 0; battery->ps = devm_power_supply_register(&hidpp->hid_dev->dev, &battery->desc, &cfg); if (IS_ERR(battery->ps)) return PTR_ERR(battery->ps); power_supply_powers(battery->ps, &hidpp->hid_dev->dev); return ret; } static void hidpp_overwrite_name(struct hid_device *hdev) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); char *name; if (hidpp->protocol_major < 2) return; name = hidpp_get_device_name(hidpp); if (!name) { hid_err(hdev, "unable to retrieve the name of the device"); } else { dbg_hid("HID++: Got name: %s\n", name); snprintf(hdev->name, sizeof(hdev->name), "%s", name); } kfree(name); } static int hidpp_input_open(struct input_dev *dev) { struct hid_device *hid = input_get_drvdata(dev); return hid_hw_open(hid); } static void hidpp_input_close(struct input_dev *dev) { struct hid_device *hid = input_get_drvdata(dev); hid_hw_close(hid); } static struct input_dev *hidpp_allocate_input(struct hid_device *hdev) { struct input_dev *input_dev = devm_input_allocate_device(&hdev->dev); struct hidpp_device *hidpp = hid_get_drvdata(hdev); if (!input_dev) return NULL; input_set_drvdata(input_dev, hdev); input_dev->open = hidpp_input_open; input_dev->close = hidpp_input_close; input_dev->name = hidpp->name; input_dev->phys = hdev->phys; input_dev->uniq = hdev->uniq; input_dev->id.bustype = hdev->bus; input_dev->id.vendor = hdev->vendor; input_dev->id.product = hdev->product; input_dev->id.version = hdev->version; input_dev->dev.parent = &hdev->dev; return input_dev; } static void hidpp_connect_event(struct hidpp_device *hidpp) { struct hid_device *hdev = hidpp->hid_dev; int ret = 0; bool connected = atomic_read(&hidpp->connected); struct input_dev *input; char *name, *devm_name; if (!connected) { if (hidpp->battery.ps) { hidpp->battery.online = false; hidpp->battery.status = POWER_SUPPLY_STATUS_UNKNOWN; hidpp->battery.level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN; power_supply_changed(hidpp->battery.ps); } return; } if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) { ret = wtp_connect(hdev, connected); if (ret) return; } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) { ret = m560_send_config_command(hdev, connected); if (ret) return; } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) { ret = k400_connect(hdev, connected); if (ret) return; } /* the device is already connected, we can ask for its name and * protocol */ if (!hidpp->protocol_major) { ret = !hidpp_is_connected(hidpp); if (ret) { hid_err(hdev, "Can not get the protocol version.\n"); return; } hid_info(hdev, "HID++ %u.%u device connected.\n", hidpp->protocol_major, hidpp->protocol_minor); } if (hidpp->name == hdev->name && hidpp->protocol_major >= 2) { name = hidpp_get_device_name(hidpp); if (!name) { hid_err(hdev, "unable to retrieve the name of the device"); return; } devm_name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s", name); kfree(name); if (!devm_name) return; hidpp->name = devm_name; } hidpp_initialize_battery(hidpp); /* forward current battery state */ if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) { hidpp10_enable_battery_reporting(hidpp); if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE) hidpp10_query_battery_mileage(hidpp); else hidpp10_query_battery_status(hidpp); } else if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) { hidpp20_query_battery_info(hidpp); } if (hidpp->battery.ps) power_supply_changed(hidpp->battery.ps); if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL) hi_res_scroll_enable(hidpp); if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) || hidpp->delayed_input) /* if the input nodes are already created, we can stop now */ return; input = hidpp_allocate_input(hdev); if (!input) { hid_err(hdev, "cannot allocate new input device: %d\n", ret); return; } hidpp_populate_input(hidpp, input, false); ret = input_register_device(input); if (ret) input_free_device(input); hidpp->delayed_input = input; } static DEVICE_ATTR(builtin_power_supply, 0000, NULL, NULL); static struct attribute *sysfs_attrs[] = { &dev_attr_builtin_power_supply.attr, NULL }; static const struct attribute_group ps_attribute_group = { .attrs = sysfs_attrs }; static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id) { struct hidpp_device *hidpp; int ret; bool connected; unsigned int connect_mask = HID_CONNECT_DEFAULT; hidpp = devm_kzalloc(&hdev->dev, sizeof(struct hidpp_device), GFP_KERNEL); if (!hidpp) return -ENOMEM; hidpp->hid_dev = hdev; hidpp->name = hdev->name; hid_set_drvdata(hdev, hidpp); hidpp->quirks = id->driver_data; if (id->group == HID_GROUP_LOGITECH_DJ_DEVICE) hidpp->quirks |= HIDPP_QUIRK_UNIFYING; if (disable_raw_mode) { hidpp->quirks &= ~HIDPP_QUIRK_CLASS_WTP; hidpp->quirks &= ~HIDPP_QUIRK_NO_HIDINPUT; } if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) { ret = wtp_allocate(hdev, id); if (ret) goto allocate_fail; } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) { ret = m560_allocate(hdev); if (ret) goto allocate_fail; } else if (hidpp->quirks & HIDPP_QUIRK_CLASS_K400) { ret = k400_allocate(hdev); if (ret) goto allocate_fail; } INIT_WORK(&hidpp->work, delayed_work_cb); mutex_init(&hidpp->send_mutex); init_waitqueue_head(&hidpp->wait); /* indicates we are handling the battery properties in the kernel */ ret = sysfs_create_group(&hdev->dev.kobj, &ps_attribute_group); if (ret) hid_warn(hdev, "Cannot allocate sysfs group for %s\n", hdev->name); ret = hid_parse(hdev); if (ret) { hid_err(hdev, "%s:parse failed\n", __func__); goto hid_parse_fail; } if (hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) connect_mask &= ~HID_CONNECT_HIDINPUT; if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) { ret = hid_hw_start(hdev, connect_mask); if (ret) { hid_err(hdev, "hw start failed\n"); goto hid_hw_start_fail; } ret = hid_hw_open(hdev); if (ret < 0) { dev_err(&hdev->dev, "%s:hid_hw_open returned error:%d\n", __func__, ret); hid_hw_stop(hdev); goto hid_hw_start_fail; } } /* Allow incoming packets */ hid_device_io_start(hdev); if (hidpp->quirks & HIDPP_QUIRK_UNIFYING) hidpp_unifying_init(hidpp); connected = hidpp_is_connected(hidpp); atomic_set(&hidpp->connected, connected); if (!(hidpp->quirks & HIDPP_QUIRK_UNIFYING)) { if (!connected) { ret = -ENODEV; hid_err(hdev, "Device not connected"); goto hid_hw_open_failed; } hid_info(hdev, "HID++ %u.%u device connected.\n", hidpp->protocol_major, hidpp->protocol_minor); hidpp_overwrite_name(hdev); } if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP)) { ret = wtp_get_config(hidpp); if (ret) goto hid_hw_open_failed; } else if (connected && (hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) { ret = g920_get_config(hidpp); if (ret) goto hid_hw_open_failed; } /* Block incoming packets */ hid_device_io_stop(hdev); if (!(hidpp->quirks & HIDPP_QUIRK_CLASS_G920)) { ret = hid_hw_start(hdev, connect_mask); if (ret) { hid_err(hdev, "%s:hid_hw_start returned error\n", __func__); goto hid_hw_start_fail; } } /* Allow incoming packets */ hid_device_io_start(hdev); hidpp_connect_event(hidpp); return ret; hid_hw_open_failed: hid_device_io_stop(hdev); if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) { hid_hw_close(hdev); hid_hw_stop(hdev); } hid_hw_start_fail: hid_parse_fail: sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group); cancel_work_sync(&hidpp->work); mutex_destroy(&hidpp->send_mutex); allocate_fail: hid_set_drvdata(hdev, NULL); return ret; } static void hidpp_remove(struct hid_device *hdev) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); sysfs_remove_group(&hdev->dev.kobj, &ps_attribute_group); if (hidpp->quirks & HIDPP_QUIRK_CLASS_G920) { hidpp_ff_deinit(hdev); hid_hw_close(hdev); } hid_hw_stop(hdev); cancel_work_sync(&hidpp->work); mutex_destroy(&hidpp->send_mutex); } #define LDJ_DEVICE(product) \ HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE, \ USB_VENDOR_ID_LOGITECH, (product)) static const struct hid_device_id hidpp_devices[] = { { /* wireless touchpad */ LDJ_DEVICE(0x4011), .driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_WTP_PHYSICAL_BUTTONS }, { /* wireless touchpad T650 */ LDJ_DEVICE(0x4101), .driver_data = HIDPP_QUIRK_CLASS_WTP | HIDPP_QUIRK_DELAYED_INIT }, { /* wireless touchpad T651 */ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_T651), .driver_data = HIDPP_QUIRK_CLASS_WTP }, { /* Mouse Logitech Anywhere MX */ LDJ_DEVICE(0x1017), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 }, { /* Mouse Logitech Cube */ LDJ_DEVICE(0x4010), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2120 }, { /* Mouse Logitech M335 */ LDJ_DEVICE(0x4050), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { /* Mouse Logitech M515 */ LDJ_DEVICE(0x4007), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2120 }, { /* Mouse logitech M560 */ LDJ_DEVICE(0x402d), .driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560 | HIDPP_QUIRK_HI_RES_SCROLL_X2120 }, { /* Mouse Logitech M705 (firmware RQM17) */ LDJ_DEVICE(0x101b), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 }, { /* Mouse Logitech M705 (firmware RQM67) */ LDJ_DEVICE(0x406d), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { /* Mouse Logitech M720 */ LDJ_DEVICE(0x405e), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { /* Mouse Logitech MX Anywhere 2 */ LDJ_DEVICE(0x404a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { LDJ_DEVICE(0xb013), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { LDJ_DEVICE(0xb018), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { LDJ_DEVICE(0xb01f), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { /* Mouse Logitech MX Anywhere 2S */ LDJ_DEVICE(0x406a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { /* Mouse Logitech MX Master */ LDJ_DEVICE(0x4041), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { LDJ_DEVICE(0x4060), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { LDJ_DEVICE(0x4071), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { /* Mouse Logitech MX Master 2S */ LDJ_DEVICE(0x4069), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 }, { /* Mouse Logitech Performance MX */ LDJ_DEVICE(0x101a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 }, { /* Keyboard logitech K400 */ LDJ_DEVICE(0x4024), .driver_data = HIDPP_QUIRK_CLASS_K400 }, { /* Solar Keyboard Logitech K750 */ LDJ_DEVICE(0x4002), .driver_data = HIDPP_QUIRK_CLASS_K750 }, { LDJ_DEVICE(HID_ANY_ID) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL), .driver_data = HIDPP_QUIRK_CLASS_G920 | HIDPP_QUIRK_FORCE_OUTPUT_REPORTS}, {} }; MODULE_DEVICE_TABLE(hid, hidpp_devices); static const struct hid_usage_id hidpp_usages[] = { { HID_GD_WHEEL, EV_REL, REL_WHEEL_HI_RES }, { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} }; static struct hid_driver hidpp_driver = { .name = "logitech-hidpp-device", .id_table = hidpp_devices, .probe = hidpp_probe, .remove = hidpp_remove, .raw_event = hidpp_raw_event, .usage_table = hidpp_usages, .event = hidpp_event, .input_configured = hidpp_input_configured, .input_mapping = hidpp_input_mapping, .input_mapped = hidpp_input_mapped, }; module_hid_driver(hidpp_driver);
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