12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614171418141914201421142214231424142514261427142814291430143114321433143414351436143714381439144014411442144314441445144614471448144914501451145214531454145514561457145814591460146114621463146414651466146714681469147014711472147314741475147614771478147914801481148214831484148514861487148814891490149114921493149414951496149714981499150015011502150315041505150615071508150915101511151215131514151515161517151815191520152115221523152415251526152715281529153015311532153315341535153615371538153915401541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628162916301631163216331634163516361637163816391640164116421643164416451646164716481649165016511652165316541655165616571658165916601661166216631664166516661667166816691670167116721673167416751676167716781679168016811682168316841685168616871688168916901691169216931694169516961697169816991700170117021703170417051706170717081709171017111712171317141715171617171718171917201721172217231724172517261727172817291730173117321733173417351736173717381739174017411742174317441745174617471748174917501751175217531754175517561757175817591760176117621763176417651766176717681769177017711772177317741775177617771778177917801781178217831784178517861787178817891790179117921793179417951796179717981799180018011802180318041805180618071808180918101811181218131814181518161817181818191820182118221823182418251826182718281829183018311832183318341835183618371838183918401841184218431844184518461847184818491850185118521853185418551856185718581859186018611862186318641865186618671868186918701871187218731874187518761877187818791880188118821883188418851886188718881889189018911892189318941895189618971898189919001901190219031904190519061907190819091910191119121913191419151916191719181919192019211922192319241925192619271928192919301931193219331934193519361937193819391940194119421943 |
- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * HID driver for Logitech receivers
- *
- * Copyright (c) 2011 Logitech
- */
- #include <linux/device.h>
- #include <linux/hid.h>
- #include <linux/module.h>
- #include <linux/kfifo.h>
- #include <linux/delay.h>
- #include <linux/usb.h> /* For to_usb_interface for kvm extra intf check */
- #include <asm/unaligned.h>
- #include "hid-ids.h"
- #define DJ_MAX_PAIRED_DEVICES 7
- #define DJ_MAX_NUMBER_NOTIFS 8
- #define DJ_RECEIVER_INDEX 0
- #define DJ_DEVICE_INDEX_MIN 1
- #define DJ_DEVICE_INDEX_MAX 7
- #define DJREPORT_SHORT_LENGTH 15
- #define DJREPORT_LONG_LENGTH 32
- #define REPORT_ID_DJ_SHORT 0x20
- #define REPORT_ID_DJ_LONG 0x21
- #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_RECEIVER_INDEX 0xff
- #define REPORT_TYPE_RFREPORT_FIRST 0x01
- #define REPORT_TYPE_RFREPORT_LAST 0x1F
- /* Command Switch to DJ mode */
- #define REPORT_TYPE_CMD_SWITCH 0x80
- #define CMD_SWITCH_PARAM_DEVBITFIELD 0x00
- #define CMD_SWITCH_PARAM_TIMEOUT_SECONDS 0x01
- #define TIMEOUT_NO_KEEPALIVE 0x00
- /* Command to Get the list of Paired devices */
- #define REPORT_TYPE_CMD_GET_PAIRED_DEVICES 0x81
- /* Device Paired Notification */
- #define REPORT_TYPE_NOTIF_DEVICE_PAIRED 0x41
- #define SPFUNCTION_MORE_NOTIF_EXPECTED 0x01
- #define SPFUNCTION_DEVICE_LIST_EMPTY 0x02
- #define DEVICE_PAIRED_PARAM_SPFUNCTION 0x00
- #define DEVICE_PAIRED_PARAM_EQUAD_ID_LSB 0x01
- #define DEVICE_PAIRED_PARAM_EQUAD_ID_MSB 0x02
- #define DEVICE_PAIRED_RF_REPORT_TYPE 0x03
- /* Device Un-Paired Notification */
- #define REPORT_TYPE_NOTIF_DEVICE_UNPAIRED 0x40
- /* Connection Status Notification */
- #define REPORT_TYPE_NOTIF_CONNECTION_STATUS 0x42
- #define CONNECTION_STATUS_PARAM_STATUS 0x00
- #define STATUS_LINKLOSS 0x01
- /* Error Notification */
- #define REPORT_TYPE_NOTIF_ERROR 0x7F
- #define NOTIF_ERROR_PARAM_ETYPE 0x00
- #define ETYPE_KEEPALIVE_TIMEOUT 0x01
- /* supported DJ HID && RF report types */
- #define REPORT_TYPE_KEYBOARD 0x01
- #define REPORT_TYPE_MOUSE 0x02
- #define REPORT_TYPE_CONSUMER_CONTROL 0x03
- #define REPORT_TYPE_SYSTEM_CONTROL 0x04
- #define REPORT_TYPE_MEDIA_CENTER 0x08
- #define REPORT_TYPE_LEDS 0x0E
- /* RF Report types bitfield */
- #define STD_KEYBOARD BIT(1)
- #define STD_MOUSE BIT(2)
- #define MULTIMEDIA BIT(3)
- #define POWER_KEYS BIT(4)
- #define MEDIA_CENTER BIT(8)
- #define KBD_LEDS BIT(14)
- /* Fake (bitnr > NUMBER_OF_HID_REPORTS) bit to track HID++ capability */
- #define HIDPP BIT_ULL(63)
- /* HID++ Device Connected Notification */
- #define REPORT_TYPE_NOTIF_DEVICE_CONNECTED 0x41
- #define HIDPP_PARAM_PROTO_TYPE 0x00
- #define HIDPP_PARAM_DEVICE_INFO 0x01
- #define HIDPP_PARAM_EQUAD_LSB 0x02
- #define HIDPP_PARAM_EQUAD_MSB 0x03
- #define HIDPP_PARAM_27MHZ_DEVID 0x03
- #define HIDPP_DEVICE_TYPE_MASK GENMASK(3, 0)
- #define HIDPP_LINK_STATUS_MASK BIT(6)
- #define HIDPP_MANUFACTURER_MASK BIT(7)
- #define HIDPP_DEVICE_TYPE_KEYBOARD 1
- #define HIDPP_DEVICE_TYPE_MOUSE 2
- #define HIDPP_SET_REGISTER 0x80
- #define HIDPP_GET_LONG_REGISTER 0x83
- #define HIDPP_REG_CONNECTION_STATE 0x02
- #define HIDPP_REG_PAIRING_INFORMATION 0xB5
- #define HIDPP_PAIRING_INFORMATION 0x20
- #define HIDPP_FAKE_DEVICE_ARRIVAL 0x02
- enum recvr_type {
- recvr_type_dj,
- recvr_type_hidpp,
- recvr_type_gaming_hidpp,
- recvr_type_mouse_only,
- recvr_type_27mhz,
- recvr_type_bluetooth,
- };
- struct dj_report {
- u8 report_id;
- u8 device_index;
- u8 report_type;
- u8 report_params[DJREPORT_SHORT_LENGTH - 3];
- };
- struct hidpp_event {
- u8 report_id;
- u8 device_index;
- u8 sub_id;
- u8 params[HIDPP_REPORT_LONG_LENGTH - 3U];
- } __packed;
- struct dj_receiver_dev {
- struct hid_device *mouse;
- struct hid_device *keyboard;
- struct hid_device *hidpp;
- struct dj_device *paired_dj_devices[DJ_MAX_PAIRED_DEVICES +
- DJ_DEVICE_INDEX_MIN];
- struct list_head list;
- struct kref kref;
- struct work_struct work;
- struct kfifo notif_fifo;
- unsigned long last_query; /* in jiffies */
- bool ready;
- enum recvr_type type;
- unsigned int unnumbered_application;
- spinlock_t lock;
- };
- struct dj_device {
- struct hid_device *hdev;
- struct dj_receiver_dev *dj_receiver_dev;
- u64 reports_supported;
- u8 device_index;
- };
- #define WORKITEM_TYPE_EMPTY 0
- #define WORKITEM_TYPE_PAIRED 1
- #define WORKITEM_TYPE_UNPAIRED 2
- #define WORKITEM_TYPE_UNKNOWN 255
- struct dj_workitem {
- u8 type; /* WORKITEM_TYPE_* */
- u8 device_index;
- u8 device_type;
- u8 quad_id_msb;
- u8 quad_id_lsb;
- u64 reports_supported;
- };
- /* Keyboard descriptor (1) */
- static const char kbd_descriptor[] = {
- 0x05, 0x01, /* USAGE_PAGE (generic Desktop) */
- 0x09, 0x06, /* USAGE (Keyboard) */
- 0xA1, 0x01, /* COLLECTION (Application) */
- 0x85, 0x01, /* REPORT_ID (1) */
- 0x95, 0x08, /* REPORT_COUNT (8) */
- 0x75, 0x01, /* REPORT_SIZE (1) */
- 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
- 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */
- 0x05, 0x07, /* USAGE_PAGE (Keyboard) */
- 0x19, 0xE0, /* USAGE_MINIMUM (Left Control) */
- 0x29, 0xE7, /* USAGE_MAXIMUM (Right GUI) */
- 0x81, 0x02, /* INPUT (Data,Var,Abs) */
- 0x95, 0x06, /* REPORT_COUNT (6) */
- 0x75, 0x08, /* REPORT_SIZE (8) */
- 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
- 0x26, 0xFF, 0x00, /* LOGICAL_MAXIMUM (255) */
- 0x05, 0x07, /* USAGE_PAGE (Keyboard) */
- 0x19, 0x00, /* USAGE_MINIMUM (no event) */
- 0x2A, 0xFF, 0x00, /* USAGE_MAXIMUM (reserved) */
- 0x81, 0x00, /* INPUT (Data,Ary,Abs) */
- 0x85, 0x0e, /* REPORT_ID (14) */
- 0x05, 0x08, /* USAGE PAGE (LED page) */
- 0x95, 0x05, /* REPORT COUNT (5) */
- 0x75, 0x01, /* REPORT SIZE (1) */
- 0x15, 0x00, /* LOGICAL_MINIMUM (0) */
- 0x25, 0x01, /* LOGICAL_MAXIMUM (1) */
- 0x19, 0x01, /* USAGE MINIMUM (1) */
- 0x29, 0x05, /* USAGE MAXIMUM (5) */
- 0x91, 0x02, /* OUTPUT (Data, Variable, Absolute) */
- 0x95, 0x01, /* REPORT COUNT (1) */
- 0x75, 0x03, /* REPORT SIZE (3) */
- 0x91, 0x01, /* OUTPUT (Constant) */
- 0xC0
- };
- /* Mouse descriptor (2) */
- static const char mse_descriptor[] = {
- 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
- 0x09, 0x02, /* USAGE (Mouse) */
- 0xA1, 0x01, /* COLLECTION (Application) */
- 0x85, 0x02, /* REPORT_ID = 2 */
- 0x09, 0x01, /* USAGE (pointer) */
- 0xA1, 0x00, /* COLLECTION (physical) */
- 0x05, 0x09, /* USAGE_PAGE (buttons) */
- 0x19, 0x01, /* USAGE_MIN (1) */
- 0x29, 0x10, /* USAGE_MAX (16) */
- 0x15, 0x00, /* LOGICAL_MIN (0) */
- 0x25, 0x01, /* LOGICAL_MAX (1) */
- 0x95, 0x10, /* REPORT_COUNT (16) */
- 0x75, 0x01, /* REPORT_SIZE (1) */
- 0x81, 0x02, /* INPUT (data var abs) */
- 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
- 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
- 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
- 0x75, 0x0C, /* REPORT_SIZE (12) */
- 0x95, 0x02, /* REPORT_COUNT (2) */
- 0x09, 0x30, /* USAGE (X) */
- 0x09, 0x31, /* USAGE (Y) */
- 0x81, 0x06, /* INPUT */
- 0x15, 0x81, /* LOGICAL_MIN (-127) */
- 0x25, 0x7F, /* LOGICAL_MAX (127) */
- 0x75, 0x08, /* REPORT_SIZE (8) */
- 0x95, 0x01, /* REPORT_COUNT (1) */
- 0x09, 0x38, /* USAGE (wheel) */
- 0x81, 0x06, /* INPUT */
- 0x05, 0x0C, /* USAGE_PAGE(consumer) */
- 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
- 0x95, 0x01, /* REPORT_COUNT (1) */
- 0x81, 0x06, /* INPUT */
- 0xC0, /* END_COLLECTION */
- 0xC0, /* END_COLLECTION */
- };
- /* Mouse descriptor (2) for 27 MHz receiver, only 8 buttons */
- static const char mse_27mhz_descriptor[] = {
- 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
- 0x09, 0x02, /* USAGE (Mouse) */
- 0xA1, 0x01, /* COLLECTION (Application) */
- 0x85, 0x02, /* REPORT_ID = 2 */
- 0x09, 0x01, /* USAGE (pointer) */
- 0xA1, 0x00, /* COLLECTION (physical) */
- 0x05, 0x09, /* USAGE_PAGE (buttons) */
- 0x19, 0x01, /* USAGE_MIN (1) */
- 0x29, 0x08, /* USAGE_MAX (8) */
- 0x15, 0x00, /* LOGICAL_MIN (0) */
- 0x25, 0x01, /* LOGICAL_MAX (1) */
- 0x95, 0x08, /* REPORT_COUNT (8) */
- 0x75, 0x01, /* REPORT_SIZE (1) */
- 0x81, 0x02, /* INPUT (data var abs) */
- 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
- 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
- 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
- 0x75, 0x0C, /* REPORT_SIZE (12) */
- 0x95, 0x02, /* REPORT_COUNT (2) */
- 0x09, 0x30, /* USAGE (X) */
- 0x09, 0x31, /* USAGE (Y) */
- 0x81, 0x06, /* INPUT */
- 0x15, 0x81, /* LOGICAL_MIN (-127) */
- 0x25, 0x7F, /* LOGICAL_MAX (127) */
- 0x75, 0x08, /* REPORT_SIZE (8) */
- 0x95, 0x01, /* REPORT_COUNT (1) */
- 0x09, 0x38, /* USAGE (wheel) */
- 0x81, 0x06, /* INPUT */
- 0x05, 0x0C, /* USAGE_PAGE(consumer) */
- 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
- 0x95, 0x01, /* REPORT_COUNT (1) */
- 0x81, 0x06, /* INPUT */
- 0xC0, /* END_COLLECTION */
- 0xC0, /* END_COLLECTION */
- };
- /* Mouse descriptor (2) for Bluetooth receiver, low-res hwheel, 12 buttons */
- static const char mse_bluetooth_descriptor[] = {
- 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
- 0x09, 0x02, /* USAGE (Mouse) */
- 0xA1, 0x01, /* COLLECTION (Application) */
- 0x85, 0x02, /* REPORT_ID = 2 */
- 0x09, 0x01, /* USAGE (pointer) */
- 0xA1, 0x00, /* COLLECTION (physical) */
- 0x05, 0x09, /* USAGE_PAGE (buttons) */
- 0x19, 0x01, /* USAGE_MIN (1) */
- 0x29, 0x08, /* USAGE_MAX (8) */
- 0x15, 0x00, /* LOGICAL_MIN (0) */
- 0x25, 0x01, /* LOGICAL_MAX (1) */
- 0x95, 0x08, /* REPORT_COUNT (8) */
- 0x75, 0x01, /* REPORT_SIZE (1) */
- 0x81, 0x02, /* INPUT (data var abs) */
- 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
- 0x16, 0x01, 0xF8, /* LOGICAL_MIN (-2047) */
- 0x26, 0xFF, 0x07, /* LOGICAL_MAX (2047) */
- 0x75, 0x0C, /* REPORT_SIZE (12) */
- 0x95, 0x02, /* REPORT_COUNT (2) */
- 0x09, 0x30, /* USAGE (X) */
- 0x09, 0x31, /* USAGE (Y) */
- 0x81, 0x06, /* INPUT */
- 0x15, 0x81, /* LOGICAL_MIN (-127) */
- 0x25, 0x7F, /* LOGICAL_MAX (127) */
- 0x75, 0x08, /* REPORT_SIZE (8) */
- 0x95, 0x01, /* REPORT_COUNT (1) */
- 0x09, 0x38, /* USAGE (wheel) */
- 0x81, 0x06, /* INPUT */
- 0x05, 0x0C, /* USAGE_PAGE(consumer) */
- 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
- 0x15, 0xF9, /* LOGICAL_MIN (-7) */
- 0x25, 0x07, /* LOGICAL_MAX (7) */
- 0x75, 0x04, /* REPORT_SIZE (4) */
- 0x95, 0x01, /* REPORT_COUNT (1) */
- 0x81, 0x06, /* INPUT */
- 0x05, 0x09, /* USAGE_PAGE (buttons) */
- 0x19, 0x09, /* USAGE_MIN (9) */
- 0x29, 0x0C, /* USAGE_MAX (12) */
- 0x15, 0x00, /* LOGICAL_MIN (0) */
- 0x25, 0x01, /* LOGICAL_MAX (1) */
- 0x75, 0x01, /* REPORT_SIZE (1) */
- 0x95, 0x04, /* REPORT_COUNT (4) */
- 0x81, 0x02, /* INPUT (Data,Var,Abs) */
- 0xC0, /* END_COLLECTION */
- 0xC0, /* END_COLLECTION */
- };
- /* Gaming Mouse descriptor (2) */
- static const char mse_high_res_descriptor[] = {
- 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
- 0x09, 0x02, /* USAGE (Mouse) */
- 0xA1, 0x01, /* COLLECTION (Application) */
- 0x85, 0x02, /* REPORT_ID = 2 */
- 0x09, 0x01, /* USAGE (pointer) */
- 0xA1, 0x00, /* COLLECTION (physical) */
- 0x05, 0x09, /* USAGE_PAGE (buttons) */
- 0x19, 0x01, /* USAGE_MIN (1) */
- 0x29, 0x10, /* USAGE_MAX (16) */
- 0x15, 0x00, /* LOGICAL_MIN (0) */
- 0x25, 0x01, /* LOGICAL_MAX (1) */
- 0x95, 0x10, /* REPORT_COUNT (16) */
- 0x75, 0x01, /* REPORT_SIZE (1) */
- 0x81, 0x02, /* INPUT (data var abs) */
- 0x05, 0x01, /* USAGE_PAGE (generic desktop) */
- 0x16, 0x01, 0x80, /* LOGICAL_MIN (-32767) */
- 0x26, 0xFF, 0x7F, /* LOGICAL_MAX (32767) */
- 0x75, 0x10, /* REPORT_SIZE (16) */
- 0x95, 0x02, /* REPORT_COUNT (2) */
- 0x09, 0x30, /* USAGE (X) */
- 0x09, 0x31, /* USAGE (Y) */
- 0x81, 0x06, /* INPUT */
- 0x15, 0x81, /* LOGICAL_MIN (-127) */
- 0x25, 0x7F, /* LOGICAL_MAX (127) */
- 0x75, 0x08, /* REPORT_SIZE (8) */
- 0x95, 0x01, /* REPORT_COUNT (1) */
- 0x09, 0x38, /* USAGE (wheel) */
- 0x81, 0x06, /* INPUT */
- 0x05, 0x0C, /* USAGE_PAGE(consumer) */
- 0x0A, 0x38, 0x02, /* USAGE(AC Pan) */
- 0x95, 0x01, /* REPORT_COUNT (1) */
- 0x81, 0x06, /* INPUT */
- 0xC0, /* END_COLLECTION */
- 0xC0, /* END_COLLECTION */
- };
- /* Consumer Control descriptor (3) */
- static const char consumer_descriptor[] = {
- 0x05, 0x0C, /* USAGE_PAGE (Consumer Devices) */
- 0x09, 0x01, /* USAGE (Consumer Control) */
- 0xA1, 0x01, /* COLLECTION (Application) */
- 0x85, 0x03, /* REPORT_ID = 3 */
- 0x75, 0x10, /* REPORT_SIZE (16) */
- 0x95, 0x02, /* REPORT_COUNT (2) */
- 0x15, 0x01, /* LOGICAL_MIN (1) */
- 0x26, 0xFF, 0x02, /* LOGICAL_MAX (767) */
- 0x19, 0x01, /* USAGE_MIN (1) */
- 0x2A, 0xFF, 0x02, /* USAGE_MAX (767) */
- 0x81, 0x00, /* INPUT (Data Ary Abs) */
- 0xC0, /* END_COLLECTION */
- }; /* */
- /* System control descriptor (4) */
- static const char syscontrol_descriptor[] = {
- 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
- 0x09, 0x80, /* USAGE (System Control) */
- 0xA1, 0x01, /* COLLECTION (Application) */
- 0x85, 0x04, /* REPORT_ID = 4 */
- 0x75, 0x02, /* REPORT_SIZE (2) */
- 0x95, 0x01, /* REPORT_COUNT (1) */
- 0x15, 0x01, /* LOGICAL_MIN (1) */
- 0x25, 0x03, /* LOGICAL_MAX (3) */
- 0x09, 0x82, /* USAGE (System Sleep) */
- 0x09, 0x81, /* USAGE (System Power Down) */
- 0x09, 0x83, /* USAGE (System Wake Up) */
- 0x81, 0x60, /* INPUT (Data Ary Abs NPrf Null) */
- 0x75, 0x06, /* REPORT_SIZE (6) */
- 0x81, 0x03, /* INPUT (Cnst Var Abs) */
- 0xC0, /* END_COLLECTION */
- };
- /* Media descriptor (8) */
- static const char media_descriptor[] = {
- 0x06, 0xbc, 0xff, /* Usage Page 0xffbc */
- 0x09, 0x88, /* Usage 0x0088 */
- 0xa1, 0x01, /* BeginCollection */
- 0x85, 0x08, /* Report ID 8 */
- 0x19, 0x01, /* Usage Min 0x0001 */
- 0x29, 0xff, /* Usage Max 0x00ff */
- 0x15, 0x01, /* Logical Min 1 */
- 0x26, 0xff, 0x00, /* Logical Max 255 */
- 0x75, 0x08, /* Report Size 8 */
- 0x95, 0x01, /* Report Count 1 */
- 0x81, 0x00, /* Input */
- 0xc0, /* EndCollection */
- }; /* */
- /* HIDPP descriptor */
- static const char hidpp_descriptor[] = {
- 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
- 0x09, 0x01, /* Usage (Vendor Usage 1) */
- 0xa1, 0x01, /* Collection (Application) */
- 0x85, 0x10, /* Report ID (16) */
- 0x75, 0x08, /* Report Size (8) */
- 0x95, 0x06, /* Report Count (6) */
- 0x15, 0x00, /* Logical Minimum (0) */
- 0x26, 0xff, 0x00, /* Logical Maximum (255) */
- 0x09, 0x01, /* Usage (Vendor Usage 1) */
- 0x81, 0x00, /* Input (Data,Arr,Abs) */
- 0x09, 0x01, /* Usage (Vendor Usage 1) */
- 0x91, 0x00, /* Output (Data,Arr,Abs) */
- 0xc0, /* End Collection */
- 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
- 0x09, 0x02, /* Usage (Vendor Usage 2) */
- 0xa1, 0x01, /* Collection (Application) */
- 0x85, 0x11, /* Report ID (17) */
- 0x75, 0x08, /* Report Size (8) */
- 0x95, 0x13, /* Report Count (19) */
- 0x15, 0x00, /* Logical Minimum (0) */
- 0x26, 0xff, 0x00, /* Logical Maximum (255) */
- 0x09, 0x02, /* Usage (Vendor Usage 2) */
- 0x81, 0x00, /* Input (Data,Arr,Abs) */
- 0x09, 0x02, /* Usage (Vendor Usage 2) */
- 0x91, 0x00, /* Output (Data,Arr,Abs) */
- 0xc0, /* End Collection */
- 0x06, 0x00, 0xff, /* Usage Page (Vendor Defined Page 1) */
- 0x09, 0x04, /* Usage (Vendor Usage 0x04) */
- 0xa1, 0x01, /* Collection (Application) */
- 0x85, 0x20, /* Report ID (32) */
- 0x75, 0x08, /* Report Size (8) */
- 0x95, 0x0e, /* Report Count (14) */
- 0x15, 0x00, /* Logical Minimum (0) */
- 0x26, 0xff, 0x00, /* Logical Maximum (255) */
- 0x09, 0x41, /* Usage (Vendor Usage 0x41) */
- 0x81, 0x00, /* Input (Data,Arr,Abs) */
- 0x09, 0x41, /* Usage (Vendor Usage 0x41) */
- 0x91, 0x00, /* Output (Data,Arr,Abs) */
- 0x85, 0x21, /* Report ID (33) */
- 0x95, 0x1f, /* Report Count (31) */
- 0x15, 0x00, /* Logical Minimum (0) */
- 0x26, 0xff, 0x00, /* Logical Maximum (255) */
- 0x09, 0x42, /* Usage (Vendor Usage 0x42) */
- 0x81, 0x00, /* Input (Data,Arr,Abs) */
- 0x09, 0x42, /* Usage (Vendor Usage 0x42) */
- 0x91, 0x00, /* Output (Data,Arr,Abs) */
- 0xc0, /* End Collection */
- };
- /* Maximum size of all defined hid reports in bytes (including report id) */
- #define MAX_REPORT_SIZE 8
- /* Make sure all descriptors are present here */
- #define MAX_RDESC_SIZE \
- (sizeof(kbd_descriptor) + \
- sizeof(mse_bluetooth_descriptor) + \
- sizeof(consumer_descriptor) + \
- sizeof(syscontrol_descriptor) + \
- sizeof(media_descriptor) + \
- sizeof(hidpp_descriptor))
- /* Number of possible hid report types that can be created by this driver.
- *
- * Right now, RF report types have the same report types (or report id's)
- * than the hid report created from those RF reports. In the future
- * this doesnt have to be true.
- *
- * For instance, RF report type 0x01 which has a size of 8 bytes, corresponds
- * to hid report id 0x01, this is standard keyboard. Same thing applies to mice
- * reports and consumer control, etc. If a new RF report is created, it doesn't
- * has to have the same report id as its corresponding hid report, so an
- * translation may have to take place for future report types.
- */
- #define NUMBER_OF_HID_REPORTS 32
- static const u8 hid_reportid_size_map[NUMBER_OF_HID_REPORTS] = {
- [1] = 8, /* Standard keyboard */
- [2] = 8, /* Standard mouse */
- [3] = 5, /* Consumer control */
- [4] = 2, /* System control */
- [8] = 2, /* Media Center */
- };
- #define LOGITECH_DJ_INTERFACE_NUMBER 0x02
- static struct hid_ll_driver logi_dj_ll_driver;
- static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev);
- static void delayedwork_callback(struct work_struct *work);
- static LIST_HEAD(dj_hdev_list);
- static DEFINE_MUTEX(dj_hdev_list_lock);
- /*
- * dj/HID++ receivers are really a single logical entity, but for BIOS/Windows
- * compatibility they have multiple USB interfaces. On HID++ receivers we need
- * to listen for input reports on both interfaces. The functions below are used
- * to create a single struct dj_receiver_dev for all interfaces belonging to
- * a single USB-device / receiver.
- */
- static struct dj_receiver_dev *dj_find_receiver_dev(struct hid_device *hdev,
- enum recvr_type type)
- {
- struct dj_receiver_dev *djrcv_dev;
- char sep;
- /*
- * The bluetooth receiver contains a built-in hub and has separate
- * USB-devices for the keyboard and mouse interfaces.
- */
- sep = (type == recvr_type_bluetooth) ? '.' : '/';
- /* Try to find an already-probed interface from the same device */
- list_for_each_entry(djrcv_dev, &dj_hdev_list, list) {
- if (djrcv_dev->mouse &&
- hid_compare_device_paths(hdev, djrcv_dev->mouse, sep)) {
- kref_get(&djrcv_dev->kref);
- return djrcv_dev;
- }
- if (djrcv_dev->keyboard &&
- hid_compare_device_paths(hdev, djrcv_dev->keyboard, sep)) {
- kref_get(&djrcv_dev->kref);
- return djrcv_dev;
- }
- if (djrcv_dev->hidpp &&
- hid_compare_device_paths(hdev, djrcv_dev->hidpp, sep)) {
- kref_get(&djrcv_dev->kref);
- return djrcv_dev;
- }
- }
- return NULL;
- }
- static void dj_release_receiver_dev(struct kref *kref)
- {
- struct dj_receiver_dev *djrcv_dev = container_of(kref, struct dj_receiver_dev, kref);
- list_del(&djrcv_dev->list);
- kfifo_free(&djrcv_dev->notif_fifo);
- kfree(djrcv_dev);
- }
- static void dj_put_receiver_dev(struct hid_device *hdev)
- {
- struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
- mutex_lock(&dj_hdev_list_lock);
- if (djrcv_dev->mouse == hdev)
- djrcv_dev->mouse = NULL;
- if (djrcv_dev->keyboard == hdev)
- djrcv_dev->keyboard = NULL;
- if (djrcv_dev->hidpp == hdev)
- djrcv_dev->hidpp = NULL;
- kref_put(&djrcv_dev->kref, dj_release_receiver_dev);
- mutex_unlock(&dj_hdev_list_lock);
- }
- static struct dj_receiver_dev *dj_get_receiver_dev(struct hid_device *hdev,
- enum recvr_type type,
- unsigned int application,
- bool is_hidpp)
- {
- struct dj_receiver_dev *djrcv_dev;
- mutex_lock(&dj_hdev_list_lock);
- djrcv_dev = dj_find_receiver_dev(hdev, type);
- if (!djrcv_dev) {
- djrcv_dev = kzalloc(sizeof(*djrcv_dev), GFP_KERNEL);
- if (!djrcv_dev)
- goto out;
- INIT_WORK(&djrcv_dev->work, delayedwork_callback);
- spin_lock_init(&djrcv_dev->lock);
- if (kfifo_alloc(&djrcv_dev->notif_fifo,
- DJ_MAX_NUMBER_NOTIFS * sizeof(struct dj_workitem),
- GFP_KERNEL)) {
- kfree(djrcv_dev);
- djrcv_dev = NULL;
- goto out;
- }
- kref_init(&djrcv_dev->kref);
- list_add_tail(&djrcv_dev->list, &dj_hdev_list);
- djrcv_dev->last_query = jiffies;
- djrcv_dev->type = type;
- }
- if (application == HID_GD_KEYBOARD)
- djrcv_dev->keyboard = hdev;
- if (application == HID_GD_MOUSE)
- djrcv_dev->mouse = hdev;
- if (is_hidpp)
- djrcv_dev->hidpp = hdev;
- hid_set_drvdata(hdev, djrcv_dev);
- out:
- mutex_unlock(&dj_hdev_list_lock);
- return djrcv_dev;
- }
- static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev,
- struct dj_workitem *workitem)
- {
- /* Called in delayed work context */
- struct dj_device *dj_dev;
- unsigned long flags;
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- dj_dev = djrcv_dev->paired_dj_devices[workitem->device_index];
- djrcv_dev->paired_dj_devices[workitem->device_index] = NULL;
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- if (dj_dev != NULL) {
- hid_destroy_device(dj_dev->hdev);
- kfree(dj_dev);
- } else {
- hid_err(djrcv_dev->hidpp, "%s: can't destroy a NULL device\n",
- __func__);
- }
- }
- static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
- struct dj_workitem *workitem)
- {
- /* Called in delayed work context */
- struct hid_device *djrcv_hdev = djrcv_dev->hidpp;
- struct hid_device *dj_hiddev;
- struct dj_device *dj_dev;
- u8 device_index = workitem->device_index;
- unsigned long flags;
- /* Device index goes from 1 to 6, we need 3 bytes to store the
- * semicolon, the index, and a null terminator
- */
- unsigned char tmpstr[3];
- /* We are the only one ever adding a device, no need to lock */
- if (djrcv_dev->paired_dj_devices[device_index]) {
- /* The device is already known. No need to reallocate it. */
- dbg_hid("%s: device is already known\n", __func__);
- return;
- }
- dj_hiddev = hid_allocate_device();
- if (IS_ERR(dj_hiddev)) {
- hid_err(djrcv_hdev, "%s: hid_allocate_dev failed\n", __func__);
- return;
- }
- dj_hiddev->ll_driver = &logi_dj_ll_driver;
- dj_hiddev->dev.parent = &djrcv_hdev->dev;
- dj_hiddev->bus = BUS_USB;
- dj_hiddev->vendor = djrcv_hdev->vendor;
- dj_hiddev->product = (workitem->quad_id_msb << 8) |
- workitem->quad_id_lsb;
- if (workitem->device_type) {
- const char *type_str = "Device";
- switch (workitem->device_type) {
- case 0x01: type_str = "Keyboard"; break;
- case 0x02: type_str = "Mouse"; break;
- case 0x03: type_str = "Numpad"; break;
- case 0x04: type_str = "Presenter"; break;
- case 0x07: type_str = "Remote Control"; break;
- case 0x08: type_str = "Trackball"; break;
- case 0x09: type_str = "Touchpad"; break;
- }
- snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
- "Logitech Wireless %s PID:%04x",
- type_str, dj_hiddev->product);
- } else {
- snprintf(dj_hiddev->name, sizeof(dj_hiddev->name),
- "Logitech Wireless Device PID:%04x",
- dj_hiddev->product);
- }
- if (djrcv_dev->type == recvr_type_27mhz)
- dj_hiddev->group = HID_GROUP_LOGITECH_27MHZ_DEVICE;
- else
- dj_hiddev->group = HID_GROUP_LOGITECH_DJ_DEVICE;
- memcpy(dj_hiddev->phys, djrcv_hdev->phys, sizeof(djrcv_hdev->phys));
- snprintf(tmpstr, sizeof(tmpstr), ":%d", device_index);
- strlcat(dj_hiddev->phys, tmpstr, sizeof(dj_hiddev->phys));
- dj_dev = kzalloc(sizeof(struct dj_device), GFP_KERNEL);
- if (!dj_dev) {
- hid_err(djrcv_hdev, "%s: failed allocating dj_dev\n", __func__);
- goto dj_device_allocate_fail;
- }
- dj_dev->reports_supported = workitem->reports_supported;
- dj_dev->hdev = dj_hiddev;
- dj_dev->dj_receiver_dev = djrcv_dev;
- dj_dev->device_index = device_index;
- dj_hiddev->driver_data = dj_dev;
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- djrcv_dev->paired_dj_devices[device_index] = dj_dev;
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- if (hid_add_device(dj_hiddev)) {
- hid_err(djrcv_hdev, "%s: failed adding dj_device\n", __func__);
- goto hid_add_device_fail;
- }
- return;
- hid_add_device_fail:
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- djrcv_dev->paired_dj_devices[device_index] = NULL;
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- kfree(dj_dev);
- dj_device_allocate_fail:
- hid_destroy_device(dj_hiddev);
- }
- static void delayedwork_callback(struct work_struct *work)
- {
- struct dj_receiver_dev *djrcv_dev =
- container_of(work, struct dj_receiver_dev, work);
- struct dj_workitem workitem;
- unsigned long flags;
- int count;
- int retval;
- dbg_hid("%s\n", __func__);
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- /*
- * Since we attach to multiple interfaces, we may get scheduled before
- * we are bound to the HID++ interface, catch this.
- */
- if (!djrcv_dev->ready) {
- pr_warn("%s: delayedwork queued before hidpp interface was enumerated\n",
- __func__);
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- return;
- }
- count = kfifo_out(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
- if (count != sizeof(workitem)) {
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- return;
- }
- if (!kfifo_is_empty(&djrcv_dev->notif_fifo))
- schedule_work(&djrcv_dev->work);
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- switch (workitem.type) {
- case WORKITEM_TYPE_PAIRED:
- logi_dj_recv_add_djhid_device(djrcv_dev, &workitem);
- break;
- case WORKITEM_TYPE_UNPAIRED:
- logi_dj_recv_destroy_djhid_device(djrcv_dev, &workitem);
- break;
- case WORKITEM_TYPE_UNKNOWN:
- retval = logi_dj_recv_query_paired_devices(djrcv_dev);
- if (retval) {
- hid_err(djrcv_dev->hidpp, "%s: logi_dj_recv_query_paired_devices error: %d\n",
- __func__, retval);
- }
- break;
- case WORKITEM_TYPE_EMPTY:
- dbg_hid("%s: device list is empty\n", __func__);
- break;
- }
- }
- /*
- * Sometimes we receive reports for which we do not have a paired dj_device
- * associated with the device_index or report-type to forward the report to.
- * This means that the original "device paired" notification corresponding
- * to the dj_device never arrived to this driver. Possible reasons for this are:
- * 1) hid-core discards all packets coming from a device during probe().
- * 2) if the receiver is plugged into a KVM switch then the pairing reports
- * are only forwarded to it if the focus is on this PC.
- * This function deals with this by re-asking the receiver for the list of
- * connected devices in the delayed work callback.
- * This function MUST be called with djrcv->lock held.
- */
- static void logi_dj_recv_queue_unknown_work(struct dj_receiver_dev *djrcv_dev)
- {
- struct dj_workitem workitem = { .type = WORKITEM_TYPE_UNKNOWN };
- /* Rate limit queries done because of unhandled reports to 2/sec */
- if (time_before(jiffies, djrcv_dev->last_query + HZ / 2))
- return;
- kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
- schedule_work(&djrcv_dev->work);
- }
- static void logi_dj_recv_queue_notification(struct dj_receiver_dev *djrcv_dev,
- struct dj_report *dj_report)
- {
- /* We are called from atomic context (tasklet && djrcv->lock held) */
- struct dj_workitem workitem = {
- .device_index = dj_report->device_index,
- };
- switch (dj_report->report_type) {
- case REPORT_TYPE_NOTIF_DEVICE_PAIRED:
- workitem.type = WORKITEM_TYPE_PAIRED;
- if (dj_report->report_params[DEVICE_PAIRED_PARAM_SPFUNCTION] &
- SPFUNCTION_DEVICE_LIST_EMPTY) {
- workitem.type = WORKITEM_TYPE_EMPTY;
- break;
- }
- fallthrough;
- case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED:
- workitem.quad_id_msb =
- dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_MSB];
- workitem.quad_id_lsb =
- dj_report->report_params[DEVICE_PAIRED_PARAM_EQUAD_ID_LSB];
- workitem.reports_supported = get_unaligned_le32(
- dj_report->report_params +
- DEVICE_PAIRED_RF_REPORT_TYPE);
- workitem.reports_supported |= HIDPP;
- if (dj_report->report_type == REPORT_TYPE_NOTIF_DEVICE_UNPAIRED)
- workitem.type = WORKITEM_TYPE_UNPAIRED;
- break;
- default:
- logi_dj_recv_queue_unknown_work(djrcv_dev);
- return;
- }
- kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
- schedule_work(&djrcv_dev->work);
- }
- /*
- * Some quad/bluetooth keyboards have a builtin touchpad in this case we see
- * only 1 paired device with a device_type of REPORT_TYPE_KEYBOARD. For the
- * touchpad to work we must also forward mouse input reports to the dj_hiddev
- * created for the keyboard (instead of forwarding them to a second paired
- * device with a device_type of REPORT_TYPE_MOUSE as we normally would).
- */
- static const u16 kbd_builtin_touchpad_ids[] = {
- 0xb309, /* Dinovo Edge */
- 0xb30c, /* Dinovo Mini */
- };
- static void logi_hidpp_dev_conn_notif_equad(struct hid_device *hdev,
- struct hidpp_event *hidpp_report,
- struct dj_workitem *workitem)
- {
- struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
- int i, id;
- workitem->type = WORKITEM_TYPE_PAIRED;
- workitem->device_type = hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
- HIDPP_DEVICE_TYPE_MASK;
- workitem->quad_id_msb = hidpp_report->params[HIDPP_PARAM_EQUAD_MSB];
- workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_EQUAD_LSB];
- switch (workitem->device_type) {
- case REPORT_TYPE_KEYBOARD:
- workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
- POWER_KEYS | MEDIA_CENTER |
- HIDPP;
- id = (workitem->quad_id_msb << 8) | workitem->quad_id_lsb;
- for (i = 0; i < ARRAY_SIZE(kbd_builtin_touchpad_ids); i++) {
- if (id == kbd_builtin_touchpad_ids[i]) {
- workitem->reports_supported |= STD_MOUSE;
- break;
- }
- }
- break;
- case REPORT_TYPE_MOUSE:
- workitem->reports_supported |= STD_MOUSE | HIDPP;
- if (djrcv_dev->type == recvr_type_mouse_only)
- workitem->reports_supported |= MULTIMEDIA;
- break;
- }
- }
- static void logi_hidpp_dev_conn_notif_27mhz(struct hid_device *hdev,
- struct hidpp_event *hidpp_report,
- struct dj_workitem *workitem)
- {
- workitem->type = WORKITEM_TYPE_PAIRED;
- workitem->quad_id_lsb = hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID];
- switch (hidpp_report->device_index) {
- case 1: /* Index 1 is always a mouse */
- case 2: /* Index 2 is always a mouse */
- workitem->device_type = HIDPP_DEVICE_TYPE_MOUSE;
- workitem->reports_supported |= STD_MOUSE | HIDPP;
- break;
- case 3: /* Index 3 is always the keyboard */
- case 4: /* Index 4 is used for an optional separate numpad */
- workitem->device_type = HIDPP_DEVICE_TYPE_KEYBOARD;
- workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
- POWER_KEYS | HIDPP;
- break;
- default:
- hid_warn(hdev, "%s: unexpected device-index %d", __func__,
- hidpp_report->device_index);
- }
- }
- static void logi_hidpp_recv_queue_notif(struct hid_device *hdev,
- struct hidpp_event *hidpp_report)
- {
- /* We are called from atomic context (tasklet && djrcv->lock held) */
- struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
- const char *device_type = "UNKNOWN";
- struct dj_workitem workitem = {
- .type = WORKITEM_TYPE_EMPTY,
- .device_index = hidpp_report->device_index,
- };
- switch (hidpp_report->params[HIDPP_PARAM_PROTO_TYPE]) {
- case 0x01:
- device_type = "Bluetooth";
- /* Bluetooth connect packet contents is the same as (e)QUAD */
- logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
- if (!(hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] &
- HIDPP_MANUFACTURER_MASK)) {
- hid_info(hdev, "Non Logitech device connected on slot %d\n",
- hidpp_report->device_index);
- workitem.reports_supported &= ~HIDPP;
- }
- break;
- case 0x02:
- device_type = "27 Mhz";
- logi_hidpp_dev_conn_notif_27mhz(hdev, hidpp_report, &workitem);
- break;
- case 0x03:
- device_type = "QUAD or eQUAD";
- logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
- break;
- case 0x04:
- device_type = "eQUAD step 4 DJ";
- logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
- break;
- case 0x05:
- device_type = "DFU Lite";
- break;
- case 0x06:
- device_type = "eQUAD step 4 Lite";
- logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
- break;
- case 0x07:
- device_type = "eQUAD step 4 Gaming";
- logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
- workitem.reports_supported |= STD_KEYBOARD;
- break;
- case 0x08:
- device_type = "eQUAD step 4 for gamepads";
- break;
- case 0x0a:
- device_type = "eQUAD nano Lite";
- logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
- break;
- case 0x0c:
- device_type = "eQUAD Lightspeed 1";
- logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
- workitem.reports_supported |= STD_KEYBOARD;
- break;
- case 0x0d:
- device_type = "eQUAD Lightspeed 1.1";
- logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
- workitem.reports_supported |= STD_KEYBOARD;
- break;
- case 0x0f:
- case 0x11:
- device_type = "eQUAD Lightspeed 1.2";
- logi_hidpp_dev_conn_notif_equad(hdev, hidpp_report, &workitem);
- workitem.reports_supported |= STD_KEYBOARD;
- break;
- }
- /* custom receiver device (eg. powerplay) */
- if (hidpp_report->device_index == 7) {
- workitem.reports_supported |= HIDPP;
- }
- if (workitem.type == WORKITEM_TYPE_EMPTY) {
- hid_warn(hdev,
- "unusable device of type %s (0x%02x) connected on slot %d",
- device_type,
- hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
- hidpp_report->device_index);
- return;
- }
- hid_info(hdev, "device of type %s (0x%02x) connected on slot %d",
- device_type, hidpp_report->params[HIDPP_PARAM_PROTO_TYPE],
- hidpp_report->device_index);
- kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
- schedule_work(&djrcv_dev->work);
- }
- static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,
- struct dj_report *dj_report)
- {
- /* We are called from atomic context (tasklet && djrcv->lock held) */
- unsigned int i;
- u8 reportbuffer[MAX_REPORT_SIZE];
- struct dj_device *djdev;
- djdev = djrcv_dev->paired_dj_devices[dj_report->device_index];
- memset(reportbuffer, 0, sizeof(reportbuffer));
- for (i = 0; i < NUMBER_OF_HID_REPORTS; i++) {
- if (djdev->reports_supported & (1 << i)) {
- reportbuffer[0] = i;
- if (hid_input_report(djdev->hdev,
- HID_INPUT_REPORT,
- reportbuffer,
- hid_reportid_size_map[i], 1)) {
- dbg_hid("hid_input_report error sending null "
- "report\n");
- }
- }
- }
- }
- static void logi_dj_recv_forward_dj(struct dj_receiver_dev *djrcv_dev,
- struct dj_report *dj_report)
- {
- /* We are called from atomic context (tasklet && djrcv->lock held) */
- struct dj_device *dj_device;
- dj_device = djrcv_dev->paired_dj_devices[dj_report->device_index];
- if ((dj_report->report_type > ARRAY_SIZE(hid_reportid_size_map) - 1) ||
- (hid_reportid_size_map[dj_report->report_type] == 0)) {
- dbg_hid("invalid report type:%x\n", dj_report->report_type);
- return;
- }
- if (hid_input_report(dj_device->hdev,
- HID_INPUT_REPORT, &dj_report->report_type,
- hid_reportid_size_map[dj_report->report_type], 1)) {
- dbg_hid("hid_input_report error\n");
- }
- }
- static void logi_dj_recv_forward_report(struct dj_device *dj_dev, u8 *data,
- int size)
- {
- /* We are called from atomic context (tasklet && djrcv->lock held) */
- if (hid_input_report(dj_dev->hdev, HID_INPUT_REPORT, data, size, 1))
- dbg_hid("hid_input_report error\n");
- }
- static void logi_dj_recv_forward_input_report(struct hid_device *hdev,
- u8 *data, int size)
- {
- struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
- struct dj_device *dj_dev;
- unsigned long flags;
- u8 report = data[0];
- int i;
- if (report > REPORT_TYPE_RFREPORT_LAST) {
- hid_err(hdev, "Unexpected input report number %d\n", report);
- return;
- }
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) {
- dj_dev = djrcv_dev->paired_dj_devices[i];
- if (dj_dev && (dj_dev->reports_supported & BIT(report))) {
- logi_dj_recv_forward_report(dj_dev, data, size);
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- return;
- }
- }
- logi_dj_recv_queue_unknown_work(djrcv_dev);
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- dbg_hid("No dj-devs handling input report number %d\n", report);
- }
- static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev,
- struct dj_report *dj_report)
- {
- struct hid_device *hdev = djrcv_dev->hidpp;
- struct hid_report *report;
- struct hid_report_enum *output_report_enum;
- u8 *data = (u8 *)(&dj_report->device_index);
- unsigned int i;
- output_report_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
- report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT];
- if (!report) {
- hid_err(hdev, "%s: unable to find dj report\n", __func__);
- return -ENODEV;
- }
- for (i = 0; i < DJREPORT_SHORT_LENGTH - 1; i++)
- report->field[0]->value[i] = data[i];
- hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
- return 0;
- }
- static int logi_dj_recv_query_hidpp_devices(struct dj_receiver_dev *djrcv_dev)
- {
- static const u8 template[] = {
- REPORT_ID_HIDPP_SHORT,
- HIDPP_RECEIVER_INDEX,
- HIDPP_SET_REGISTER,
- HIDPP_REG_CONNECTION_STATE,
- HIDPP_FAKE_DEVICE_ARRIVAL,
- 0x00, 0x00
- };
- u8 *hidpp_report;
- int retval;
- hidpp_report = kmemdup(template, sizeof(template), GFP_KERNEL);
- if (!hidpp_report)
- return -ENOMEM;
- retval = hid_hw_raw_request(djrcv_dev->hidpp,
- REPORT_ID_HIDPP_SHORT,
- hidpp_report, sizeof(template),
- HID_OUTPUT_REPORT,
- HID_REQ_SET_REPORT);
- kfree(hidpp_report);
- return (retval < 0) ? retval : 0;
- }
- static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)
- {
- struct dj_report *dj_report;
- int retval;
- djrcv_dev->last_query = jiffies;
- if (djrcv_dev->type != recvr_type_dj)
- return logi_dj_recv_query_hidpp_devices(djrcv_dev);
- dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
- if (!dj_report)
- return -ENOMEM;
- dj_report->report_id = REPORT_ID_DJ_SHORT;
- dj_report->device_index = HIDPP_RECEIVER_INDEX;
- dj_report->report_type = REPORT_TYPE_CMD_GET_PAIRED_DEVICES;
- retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
- kfree(dj_report);
- return retval;
- }
- static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,
- unsigned timeout)
- {
- struct hid_device *hdev = djrcv_dev->hidpp;
- struct dj_report *dj_report;
- u8 *buf;
- int retval = 0;
- dj_report = kzalloc(sizeof(struct dj_report), GFP_KERNEL);
- if (!dj_report)
- return -ENOMEM;
- if (djrcv_dev->type == recvr_type_dj) {
- dj_report->report_id = REPORT_ID_DJ_SHORT;
- dj_report->device_index = HIDPP_RECEIVER_INDEX;
- dj_report->report_type = REPORT_TYPE_CMD_SWITCH;
- dj_report->report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F;
- dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] =
- (u8)timeout;
- retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
- /*
- * Ugly sleep to work around a USB 3.0 bug when the receiver is
- * still processing the "switch-to-dj" command while we send an
- * other command.
- * 50 msec should gives enough time to the receiver to be ready.
- */
- msleep(50);
- }
- /*
- * Magical bits to set up hidpp notifications when the dj devices
- * are connected/disconnected.
- *
- * We can reuse dj_report because HIDPP_REPORT_SHORT_LENGTH is smaller
- * than DJREPORT_SHORT_LENGTH.
- */
- buf = (u8 *)dj_report;
- memset(buf, 0, HIDPP_REPORT_SHORT_LENGTH);
- buf[0] = REPORT_ID_HIDPP_SHORT;
- buf[1] = HIDPP_RECEIVER_INDEX;
- buf[2] = 0x80;
- buf[3] = 0x00;
- buf[4] = 0x00;
- buf[5] = 0x09;
- buf[6] = 0x00;
- hid_hw_raw_request(hdev, REPORT_ID_HIDPP_SHORT, buf,
- HIDPP_REPORT_SHORT_LENGTH, HID_OUTPUT_REPORT,
- HID_REQ_SET_REPORT);
- kfree(dj_report);
- return retval;
- }
- static int logi_dj_ll_open(struct hid_device *hid)
- {
- dbg_hid("%s: %s\n", __func__, hid->phys);
- return 0;
- }
- static void logi_dj_ll_close(struct hid_device *hid)
- {
- dbg_hid("%s: %s\n", __func__, hid->phys);
- }
- /*
- * Register 0xB5 is "pairing information". It is solely intended for the
- * receiver, so do not overwrite the device index.
- */
- static u8 unifying_pairing_query[] = { REPORT_ID_HIDPP_SHORT,
- HIDPP_RECEIVER_INDEX,
- HIDPP_GET_LONG_REGISTER,
- HIDPP_REG_PAIRING_INFORMATION };
- static u8 unifying_pairing_answer[] = { REPORT_ID_HIDPP_LONG,
- HIDPP_RECEIVER_INDEX,
- HIDPP_GET_LONG_REGISTER,
- HIDPP_REG_PAIRING_INFORMATION };
- static int logi_dj_ll_raw_request(struct hid_device *hid,
- unsigned char reportnum, __u8 *buf,
- size_t count, unsigned char report_type,
- int reqtype)
- {
- struct dj_device *djdev = hid->driver_data;
- struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;
- u8 *out_buf;
- int ret;
- if ((buf[0] == REPORT_ID_HIDPP_SHORT) ||
- (buf[0] == REPORT_ID_HIDPP_LONG) ||
- (buf[0] == REPORT_ID_HIDPP_VERY_LONG)) {
- if (count < 2)
- return -EINVAL;
- /* special case where we should not overwrite
- * the device_index */
- if (count == 7 && !memcmp(buf, unifying_pairing_query,
- sizeof(unifying_pairing_query)))
- buf[4] = (buf[4] & 0xf0) | (djdev->device_index - 1);
- else
- buf[1] = djdev->device_index;
- return hid_hw_raw_request(djrcv_dev->hidpp, reportnum, buf,
- count, report_type, reqtype);
- }
- if (buf[0] != REPORT_TYPE_LEDS)
- return -EINVAL;
- if (djrcv_dev->type != recvr_type_dj && count >= 2) {
- if (!djrcv_dev->keyboard) {
- hid_warn(hid, "Received REPORT_TYPE_LEDS request before the keyboard interface was enumerated\n");
- return 0;
- }
- /* usbhid overrides the report ID and ignores the first byte */
- return hid_hw_raw_request(djrcv_dev->keyboard, 0, buf, count,
- report_type, reqtype);
- }
- out_buf = kzalloc(DJREPORT_SHORT_LENGTH, GFP_ATOMIC);
- if (!out_buf)
- return -ENOMEM;
- if (count > DJREPORT_SHORT_LENGTH - 2)
- count = DJREPORT_SHORT_LENGTH - 2;
- out_buf[0] = REPORT_ID_DJ_SHORT;
- out_buf[1] = djdev->device_index;
- memcpy(out_buf + 2, buf, count);
- ret = hid_hw_raw_request(djrcv_dev->hidpp, out_buf[0], out_buf,
- DJREPORT_SHORT_LENGTH, report_type, reqtype);
- kfree(out_buf);
- return ret;
- }
- static void rdcat(char *rdesc, unsigned int *rsize, const char *data, unsigned int size)
- {
- memcpy(rdesc + *rsize, data, size);
- *rsize += size;
- }
- static int logi_dj_ll_parse(struct hid_device *hid)
- {
- struct dj_device *djdev = hid->driver_data;
- unsigned int rsize = 0;
- char *rdesc;
- int retval;
- dbg_hid("%s\n", __func__);
- djdev->hdev->version = 0x0111;
- djdev->hdev->country = 0x00;
- rdesc = kmalloc(MAX_RDESC_SIZE, GFP_KERNEL);
- if (!rdesc)
- return -ENOMEM;
- if (djdev->reports_supported & STD_KEYBOARD) {
- dbg_hid("%s: sending a kbd descriptor, reports_supported: %llx\n",
- __func__, djdev->reports_supported);
- rdcat(rdesc, &rsize, kbd_descriptor, sizeof(kbd_descriptor));
- }
- if (djdev->reports_supported & STD_MOUSE) {
- dbg_hid("%s: sending a mouse descriptor, reports_supported: %llx\n",
- __func__, djdev->reports_supported);
- if (djdev->dj_receiver_dev->type == recvr_type_gaming_hidpp ||
- djdev->dj_receiver_dev->type == recvr_type_mouse_only)
- rdcat(rdesc, &rsize, mse_high_res_descriptor,
- sizeof(mse_high_res_descriptor));
- else if (djdev->dj_receiver_dev->type == recvr_type_27mhz)
- rdcat(rdesc, &rsize, mse_27mhz_descriptor,
- sizeof(mse_27mhz_descriptor));
- else if (djdev->dj_receiver_dev->type == recvr_type_bluetooth)
- rdcat(rdesc, &rsize, mse_bluetooth_descriptor,
- sizeof(mse_bluetooth_descriptor));
- else
- rdcat(rdesc, &rsize, mse_descriptor,
- sizeof(mse_descriptor));
- }
- if (djdev->reports_supported & MULTIMEDIA) {
- dbg_hid("%s: sending a multimedia report descriptor: %llx\n",
- __func__, djdev->reports_supported);
- rdcat(rdesc, &rsize, consumer_descriptor, sizeof(consumer_descriptor));
- }
- if (djdev->reports_supported & POWER_KEYS) {
- dbg_hid("%s: sending a power keys report descriptor: %llx\n",
- __func__, djdev->reports_supported);
- rdcat(rdesc, &rsize, syscontrol_descriptor, sizeof(syscontrol_descriptor));
- }
- if (djdev->reports_supported & MEDIA_CENTER) {
- dbg_hid("%s: sending a media center report descriptor: %llx\n",
- __func__, djdev->reports_supported);
- rdcat(rdesc, &rsize, media_descriptor, sizeof(media_descriptor));
- }
- if (djdev->reports_supported & KBD_LEDS) {
- dbg_hid("%s: need to send kbd leds report descriptor: %llx\n",
- __func__, djdev->reports_supported);
- }
- if (djdev->reports_supported & HIDPP) {
- dbg_hid("%s: sending a HID++ descriptor, reports_supported: %llx\n",
- __func__, djdev->reports_supported);
- rdcat(rdesc, &rsize, hidpp_descriptor,
- sizeof(hidpp_descriptor));
- }
- retval = hid_parse_report(hid, rdesc, rsize);
- kfree(rdesc);
- return retval;
- }
- static int logi_dj_ll_start(struct hid_device *hid)
- {
- dbg_hid("%s\n", __func__);
- return 0;
- }
- static void logi_dj_ll_stop(struct hid_device *hid)
- {
- dbg_hid("%s\n", __func__);
- }
- static struct hid_ll_driver logi_dj_ll_driver = {
- .parse = logi_dj_ll_parse,
- .start = logi_dj_ll_start,
- .stop = logi_dj_ll_stop,
- .open = logi_dj_ll_open,
- .close = logi_dj_ll_close,
- .raw_request = logi_dj_ll_raw_request,
- };
- static int logi_dj_dj_event(struct hid_device *hdev,
- struct hid_report *report, u8 *data,
- int size)
- {
- struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
- struct dj_report *dj_report = (struct dj_report *) data;
- unsigned long flags;
- /*
- * Here we receive all data coming from iface 2, there are 3 cases:
- *
- * 1) Data is intended for this driver i. e. data contains arrival,
- * departure, etc notifications, in which case we queue them for delayed
- * processing by the work queue. We return 1 to hid-core as no further
- * processing is required from it.
- *
- * 2) Data informs a connection change, if the change means rf link
- * loss, then we must send a null report to the upper layer to discard
- * potentially pressed keys that may be repeated forever by the input
- * layer. Return 1 to hid-core as no further processing is required.
- *
- * 3) Data is an actual input event from a paired DJ device in which
- * case we forward it to the correct hid device (via hid_input_report()
- * ) and return 1 so hid-core does not anything else with it.
- */
- if ((dj_report->device_index < DJ_DEVICE_INDEX_MIN) ||
- (dj_report->device_index > DJ_DEVICE_INDEX_MAX)) {
- /*
- * Device index is wrong, bail out.
- * This driver can ignore safely the receiver notifications,
- * so ignore those reports too.
- */
- if (dj_report->device_index != DJ_RECEIVER_INDEX)
- hid_err(hdev, "%s: invalid device index:%d\n",
- __func__, dj_report->device_index);
- return false;
- }
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- if (!djrcv_dev->paired_dj_devices[dj_report->device_index]) {
- /* received an event for an unknown device, bail out */
- logi_dj_recv_queue_notification(djrcv_dev, dj_report);
- goto out;
- }
- switch (dj_report->report_type) {
- case REPORT_TYPE_NOTIF_DEVICE_PAIRED:
- /* pairing notifications are handled above the switch */
- break;
- case REPORT_TYPE_NOTIF_DEVICE_UNPAIRED:
- logi_dj_recv_queue_notification(djrcv_dev, dj_report);
- break;
- case REPORT_TYPE_NOTIF_CONNECTION_STATUS:
- if (dj_report->report_params[CONNECTION_STATUS_PARAM_STATUS] ==
- STATUS_LINKLOSS) {
- logi_dj_recv_forward_null_report(djrcv_dev, dj_report);
- }
- break;
- default:
- logi_dj_recv_forward_dj(djrcv_dev, dj_report);
- }
- out:
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- return true;
- }
- static int logi_dj_hidpp_event(struct hid_device *hdev,
- struct hid_report *report, u8 *data,
- int size)
- {
- struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
- struct hidpp_event *hidpp_report = (struct hidpp_event *) data;
- struct dj_device *dj_dev;
- unsigned long flags;
- u8 device_index = hidpp_report->device_index;
- if (device_index == HIDPP_RECEIVER_INDEX) {
- /* special case were the device wants to know its unifying
- * name */
- if (size == HIDPP_REPORT_LONG_LENGTH &&
- !memcmp(data, unifying_pairing_answer,
- sizeof(unifying_pairing_answer)))
- device_index = (data[4] & 0x0F) + 1;
- else
- return false;
- }
- /*
- * Data is from the HID++ collection, in this case, we forward the
- * data to the corresponding child dj device and return 0 to hid-core
- * so he data also goes to the hidraw device of the receiver. This
- * allows a user space application to implement the full HID++ routing
- * via the receiver.
- */
- if ((device_index < DJ_DEVICE_INDEX_MIN) ||
- (device_index > DJ_DEVICE_INDEX_MAX)) {
- /*
- * Device index is wrong, bail out.
- * This driver can ignore safely the receiver notifications,
- * so ignore those reports too.
- */
- hid_err(hdev, "%s: invalid device index:%d\n", __func__,
- hidpp_report->device_index);
- return false;
- }
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- dj_dev = djrcv_dev->paired_dj_devices[device_index];
- /*
- * With 27 MHz receivers, we do not get an explicit unpair event,
- * remove the old device if the user has paired a *different* device.
- */
- if (djrcv_dev->type == recvr_type_27mhz && dj_dev &&
- hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED &&
- hidpp_report->params[HIDPP_PARAM_PROTO_TYPE] == 0x02 &&
- hidpp_report->params[HIDPP_PARAM_27MHZ_DEVID] !=
- dj_dev->hdev->product) {
- struct dj_workitem workitem = {
- .device_index = hidpp_report->device_index,
- .type = WORKITEM_TYPE_UNPAIRED,
- };
- kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));
- /* logi_hidpp_recv_queue_notif will queue the work */
- dj_dev = NULL;
- }
- if (dj_dev) {
- logi_dj_recv_forward_report(dj_dev, data, size);
- } else {
- if (hidpp_report->sub_id == REPORT_TYPE_NOTIF_DEVICE_CONNECTED)
- logi_hidpp_recv_queue_notif(hdev, hidpp_report);
- else
- logi_dj_recv_queue_unknown_work(djrcv_dev);
- }
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- return false;
- }
- static int logi_dj_raw_event(struct hid_device *hdev,
- struct hid_report *report, u8 *data,
- int size)
- {
- struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
- dbg_hid("%s, size:%d\n", __func__, size);
- if (!djrcv_dev)
- return 0;
- if (!hdev->report_enum[HID_INPUT_REPORT].numbered) {
- if (djrcv_dev->unnumbered_application == HID_GD_KEYBOARD) {
- /*
- * For the keyboard, we can reuse the same report by
- * using the second byte which is constant in the USB
- * HID report descriptor.
- */
- data[1] = data[0];
- data[0] = REPORT_TYPE_KEYBOARD;
- logi_dj_recv_forward_input_report(hdev, data, size);
- /* restore previous state */
- data[0] = data[1];
- data[1] = 0;
- }
- /*
- * Mouse-only receivers send unnumbered mouse data. The 27 MHz
- * receiver uses 6 byte packets, the nano receiver 8 bytes.
- */
- if (djrcv_dev->unnumbered_application == HID_GD_MOUSE &&
- size <= 8) {
- u8 mouse_report[9];
- /* Prepend report id */
- mouse_report[0] = REPORT_TYPE_MOUSE;
- memcpy(mouse_report + 1, data, size);
- logi_dj_recv_forward_input_report(hdev, mouse_report,
- size + 1);
- }
- return false;
- }
- switch (data[0]) {
- case REPORT_ID_DJ_SHORT:
- if (size != DJREPORT_SHORT_LENGTH) {
- hid_err(hdev, "Short DJ report bad size (%d)", size);
- return false;
- }
- return logi_dj_dj_event(hdev, report, data, size);
- case REPORT_ID_DJ_LONG:
- if (size != DJREPORT_LONG_LENGTH) {
- hid_err(hdev, "Long DJ report bad size (%d)", size);
- return false;
- }
- return logi_dj_dj_event(hdev, report, data, size);
- case REPORT_ID_HIDPP_SHORT:
- if (size != HIDPP_REPORT_SHORT_LENGTH) {
- hid_err(hdev, "Short HID++ report bad size (%d)", size);
- return false;
- }
- return logi_dj_hidpp_event(hdev, report, data, size);
- case REPORT_ID_HIDPP_LONG:
- if (size != HIDPP_REPORT_LONG_LENGTH) {
- hid_err(hdev, "Long HID++ report bad size (%d)", size);
- return false;
- }
- return logi_dj_hidpp_event(hdev, report, data, size);
- }
- logi_dj_recv_forward_input_report(hdev, data, size);
- return false;
- }
- static int logi_dj_probe(struct hid_device *hdev,
- const struct hid_device_id *id)
- {
- struct hid_report_enum *rep_enum;
- struct hid_report *rep;
- struct dj_receiver_dev *djrcv_dev;
- struct usb_interface *intf;
- unsigned int no_dj_interfaces = 0;
- bool has_hidpp = false;
- unsigned long flags;
- int retval;
- /*
- * Call to usbhid to fetch the HID descriptors of the current
- * interface subsequently call to the hid/hid-core to parse the
- * fetched descriptors.
- */
- retval = hid_parse(hdev);
- if (retval) {
- hid_err(hdev, "%s: parse failed\n", __func__);
- return retval;
- }
- /*
- * Some KVMs add an extra interface for e.g. mouse emulation. If we
- * treat these as logitech-dj interfaces then this causes input events
- * reported through this extra interface to not be reported correctly.
- * To avoid this, we treat these as generic-hid devices.
- */
- switch (id->driver_data) {
- case recvr_type_dj: no_dj_interfaces = 3; break;
- case recvr_type_hidpp: no_dj_interfaces = 2; break;
- case recvr_type_gaming_hidpp: no_dj_interfaces = 3; break;
- case recvr_type_mouse_only: no_dj_interfaces = 2; break;
- case recvr_type_27mhz: no_dj_interfaces = 2; break;
- case recvr_type_bluetooth: no_dj_interfaces = 2; break;
- }
- if (hid_is_usb(hdev)) {
- intf = to_usb_interface(hdev->dev.parent);
- if (intf && intf->altsetting->desc.bInterfaceNumber >=
- no_dj_interfaces) {
- hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
- return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
- }
- }
- rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
- /* no input reports, bail out */
- if (list_empty(&rep_enum->report_list))
- return -ENODEV;
- /*
- * Check for the HID++ application.
- * Note: we should theoretically check for HID++ and DJ
- * collections, but this will do.
- */
- list_for_each_entry(rep, &rep_enum->report_list, list) {
- if (rep->application == 0xff000001)
- has_hidpp = true;
- }
- /*
- * Ignore interfaces without DJ/HID++ collection, they will not carry
- * any data, dont create any hid_device for them.
- */
- if (!has_hidpp && id->driver_data == recvr_type_dj)
- return -ENODEV;
- /* get the current application attached to the node */
- rep = list_first_entry(&rep_enum->report_list, struct hid_report, list);
- djrcv_dev = dj_get_receiver_dev(hdev, id->driver_data,
- rep->application, has_hidpp);
- if (!djrcv_dev) {
- hid_err(hdev, "%s: dj_get_receiver_dev failed\n", __func__);
- return -ENOMEM;
- }
- if (!rep_enum->numbered)
- djrcv_dev->unnumbered_application = rep->application;
- /* Starts the usb device and connects to upper interfaces hiddev and
- * hidraw */
- retval = hid_hw_start(hdev, HID_CONNECT_HIDRAW|HID_CONNECT_HIDDEV);
- if (retval) {
- hid_err(hdev, "%s: hid_hw_start returned error\n", __func__);
- goto hid_hw_start_fail;
- }
- if (has_hidpp) {
- retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
- if (retval < 0) {
- hid_err(hdev, "%s: logi_dj_recv_switch_to_dj_mode returned error:%d\n",
- __func__, retval);
- goto switch_to_dj_mode_fail;
- }
- }
- /* This is enabling the polling urb on the IN endpoint */
- retval = hid_hw_open(hdev);
- if (retval < 0) {
- hid_err(hdev, "%s: hid_hw_open returned error:%d\n",
- __func__, retval);
- goto llopen_failed;
- }
- /* Allow incoming packets to arrive: */
- hid_device_io_start(hdev);
- if (has_hidpp) {
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- djrcv_dev->ready = true;
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- retval = logi_dj_recv_query_paired_devices(djrcv_dev);
- if (retval < 0) {
- hid_err(hdev, "%s: logi_dj_recv_query_paired_devices error:%d\n",
- __func__, retval);
- /*
- * This can happen with a KVM, let the probe succeed,
- * logi_dj_recv_queue_unknown_work will retry later.
- */
- }
- }
- return 0;
- llopen_failed:
- switch_to_dj_mode_fail:
- hid_hw_stop(hdev);
- hid_hw_start_fail:
- dj_put_receiver_dev(hdev);
- return retval;
- }
- #ifdef CONFIG_PM
- static int logi_dj_reset_resume(struct hid_device *hdev)
- {
- int retval;
- struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
- if (!djrcv_dev || djrcv_dev->hidpp != hdev)
- return 0;
- retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);
- if (retval < 0) {
- hid_err(hdev, "%s: logi_dj_recv_switch_to_dj_mode returned error:%d\n",
- __func__, retval);
- }
- return 0;
- }
- #endif
- static void logi_dj_remove(struct hid_device *hdev)
- {
- struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);
- struct dj_device *dj_dev;
- unsigned long flags;
- int i;
- dbg_hid("%s\n", __func__);
- if (!djrcv_dev)
- return hid_hw_stop(hdev);
- /*
- * This ensures that if the work gets requeued from another
- * interface of the same receiver it will be a no-op.
- */
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- djrcv_dev->ready = false;
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- cancel_work_sync(&djrcv_dev->work);
- hid_hw_close(hdev);
- hid_hw_stop(hdev);
- /*
- * For proper operation we need access to all interfaces, so we destroy
- * the paired devices when we're unbound from any interface.
- *
- * Note we may still be bound to other interfaces, sharing the same
- * djrcv_dev, so we need locking here.
- */
- for (i = 0; i < (DJ_MAX_PAIRED_DEVICES + DJ_DEVICE_INDEX_MIN); i++) {
- spin_lock_irqsave(&djrcv_dev->lock, flags);
- dj_dev = djrcv_dev->paired_dj_devices[i];
- djrcv_dev->paired_dj_devices[i] = NULL;
- spin_unlock_irqrestore(&djrcv_dev->lock, flags);
- if (dj_dev != NULL) {
- hid_destroy_device(dj_dev->hdev);
- kfree(dj_dev);
- }
- }
- dj_put_receiver_dev(hdev);
- }
- static const struct hid_device_id logi_dj_receivers[] = {
- {HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER),
- .driver_data = recvr_type_dj},
- {HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2),
- .driver_data = recvr_type_dj},
- { /* Logitech Nano mouse only receiver */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_NANO_RECEIVER),
- .driver_data = recvr_type_mouse_only},
- { /* Logitech Nano (non DJ) receiver */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2),
- .driver_data = recvr_type_hidpp},
- { /* Logitech G700(s) receiver (0xc531) */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc531),
- .driver_data = recvr_type_gaming_hidpp},
- { /* Logitech G602 receiver (0xc537) */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc537),
- .driver_data = recvr_type_gaming_hidpp},
- { /* Logitech lightspeed receiver (0xc539) */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1),
- .driver_data = recvr_type_gaming_hidpp},
- { /* Logitech lightspeed receiver (0xc53f) */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1),
- .driver_data = recvr_type_gaming_hidpp},
- { /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),
- .driver_data = recvr_type_27mhz},
- { /* Logitech powerplay receiver (0xc53a) */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY),
- .driver_data = recvr_type_gaming_hidpp},
- { /* Logitech 27 MHz HID++ 1.0 receiver (0xc517) */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_S510_RECEIVER_2),
- .driver_data = recvr_type_27mhz},
- { /* Logitech 27 MHz HID++ 1.0 mouse-only receiver (0xc51b) */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_27MHZ_MOUSE_RECEIVER),
- .driver_data = recvr_type_27mhz},
- { /* Logitech MX5000 HID++ / bluetooth receiver keyboard intf. */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc70e),
- .driver_data = recvr_type_bluetooth},
- { /* Logitech MX5000 HID++ / bluetooth receiver mouse intf. */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc70a),
- .driver_data = recvr_type_bluetooth},
- { /* Logitech MX5500 HID++ / bluetooth receiver keyboard intf. */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc71b),
- .driver_data = recvr_type_bluetooth},
- { /* Logitech MX5500 HID++ / bluetooth receiver mouse intf. */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc71c),
- .driver_data = recvr_type_bluetooth},
- {}
- };
- MODULE_DEVICE_TABLE(hid, logi_dj_receivers);
- static struct hid_driver logi_djreceiver_driver = {
- .name = "logitech-djreceiver",
- .id_table = logi_dj_receivers,
- .probe = logi_dj_probe,
- .remove = logi_dj_remove,
- .raw_event = logi_dj_raw_event,
- #ifdef CONFIG_PM
- .reset_resume = logi_dj_reset_resume,
- #endif
- };
- module_hid_driver(logi_djreceiver_driver);
- MODULE_LICENSE("GPL");
- MODULE_AUTHOR("Logitech");
- MODULE_AUTHOR("Nestor Lopez Casado");
- MODULE_AUTHOR("nlopezcasad@logitech.com");
|