| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jarod Wilson | 4440 | 54.95% | 35 | 31.25% |
| A Sun | 1840 | 22.77% | 9 | 8.04% |
| Mauro Carvalho Chehab | 676 | 8.37% | 12 | 10.71% |
| Sean Young | 578 | 7.15% | 25 | 22.32% |
| Matt DeVillier | 108 | 1.34% | 1 | 0.89% |
| David Härdeman | 87 | 1.08% | 3 | 2.68% |
| Oleh Kravchenko | 77 | 0.95% | 2 | 1.79% |
| Matthias Schwarzott | 66 | 0.82% | 2 | 1.79% |
| Brad Love | 45 | 0.56% | 1 | 0.89% |
| Mark Lord | 34 | 0.42% | 1 | 0.89% |
| William Steidtmann | 22 | 0.27% | 1 | 0.89% |
| Alexey Khoroshilov | 18 | 0.22% | 1 | 0.89% |
| Johan Hovold | 17 | 0.21% | 3 | 2.68% |
| Alan Stern | 17 | 0.21% | 1 | 0.89% |
| Olli Salonen | 16 | 0.20% | 2 | 1.79% |
| Dan Carpenter | 7 | 0.09% | 1 | 0.89% |
| Rafi Rubin | 7 | 0.09% | 2 | 1.79% |
| Paul Bender | 5 | 0.06% | 1 | 0.89% |
| James Reynolds | 5 | 0.06% | 1 | 0.89% |
| Rajat Asthana | 4 | 0.05% | 1 | 0.89% |
| Andi Shyti | 3 | 0.04% | 1 | 0.89% |
| Greg Kroah-Hartman | 2 | 0.02% | 1 | 0.89% |
| Thomas Gleixner | 2 | 0.02% | 1 | 0.89% |
| Arvind Yadav | 1 | 0.01% | 1 | 0.89% |
| Jean Delvare | 1 | 0.01% | 1 | 0.89% |
| Allen Pais | 1 | 0.01% | 1 | 0.89% |
| Christophe Jaillet | 1 | 0.01% | 1 | 0.89% |
| Total | 8080 | 112 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers * * Copyright (c) 2010-2011, Jarod Wilson <jarod@redhat.com> * * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan * Conti, Martin Blatter and Daniel Melander, the latter of which was * in turn also based on the lirc_atiusb driver by Paul Miller. The * two mce drivers were merged into one by Jarod Wilson, with transmit * support for the 1st-gen device added primarily by Patrick Calhoun, * with a bit of tweaks by Jarod. Debugging improvements and proper * support for what appears to be 3rd-gen hardware added by Jarod. * Initial port from lirc driver to ir-core drivery by Jarod, based * partially on a port to an earlier proposed IR infrastructure by * Jon Smirl, which included enhancements and simplifications to the * incoming IR buffer parsing routines. * * Updated in July of 2011 with the aid of Microsoft's official * remote/transceiver requirements and specification document, found at * download.microsoft.com, title * Windows-Media-Center-RC-IR-Collection-Green-Button-Specification-03-08-2011-V2.pdf */ #include <linux/device.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/workqueue.h> #include <linux/usb.h> #include <linux/usb/input.h> #include <linux/pm_wakeup.h> #include <media/rc-core.h> #define DRIVER_VERSION "1.95" #define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>" #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ "device driver" #define DRIVER_NAME "mceusb" #define USB_TX_TIMEOUT 1000 /* in milliseconds */ #define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */ #define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */ /* MCE constants */ #define MCE_IRBUF_SIZE 128 /* TX IR buffer length */ #define MCE_TIME_UNIT 50 /* Approx 50us resolution */ #define MCE_PACKET_SIZE 31 /* Max length of packet (with header) */ #define MCE_IRDATA_HEADER (0x80 + MCE_PACKET_SIZE - 1) /* Actual format is 0x80 + num_bytes */ #define MCE_IRDATA_TRAILER 0x80 /* End of IR data */ #define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */ #define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */ #define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */ #define MCE_PULSE_MASK 0x7f /* Pulse mask */ #define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */ /* * The interface between the host and the IR hardware is command-response * based. All commands and responses have a consistent format, where a lead * byte always identifies the type of data following it. The lead byte has * a port value in the 3 highest bits and a length value in the 5 lowest * bits. * * The length field is overloaded, with a value of 11111 indicating that the * following byte is a command or response code, and the length of the entire * message is determined by the code. If the length field is not 11111, then * it specifies the number of bytes of port data that follow. */ #define MCE_CMD 0x1f #define MCE_PORT_IR 0x4 /* (0x4 << 5) | MCE_CMD = 0x9f */ #define MCE_PORT_SYS 0x7 /* (0x7 << 5) | MCE_CMD = 0xff */ #define MCE_PORT_SER 0x6 /* 0xc0 through 0xdf flush & 0x1f bytes */ #define MCE_PORT_MASK 0xe0 /* Mask out command bits */ /* Command port headers */ #define MCE_CMD_PORT_IR 0x9f /* IR-related cmd/rsp */ #define MCE_CMD_PORT_SYS 0xff /* System (non-IR) device cmd/rsp */ /* Commands that set device state (2-4 bytes in length) */ #define MCE_CMD_RESET 0xfe /* Reset device, 2 bytes */ #define MCE_CMD_RESUME 0xaa /* Resume device after error, 2 bytes */ #define MCE_CMD_SETIRCFS 0x06 /* Set tx carrier, 4 bytes */ #define MCE_CMD_SETIRTIMEOUT 0x0c /* Set timeout, 4 bytes */ #define MCE_CMD_SETIRTXPORTS 0x08 /* Set tx ports, 3 bytes */ #define MCE_CMD_SETIRRXPORTEN 0x14 /* Set rx ports, 3 bytes */ #define MCE_CMD_FLASHLED 0x23 /* Flash receiver LED, 2 bytes */ /* Commands that query device state (all 2 bytes, unless noted) */ #define MCE_CMD_GETIRCFS 0x07 /* Get carrier */ #define MCE_CMD_GETIRTIMEOUT 0x0d /* Get timeout */ #define MCE_CMD_GETIRTXPORTS 0x13 /* Get tx ports */ #define MCE_CMD_GETIRRXPORTEN 0x15 /* Get rx ports */ #define MCE_CMD_GETPORTSTATUS 0x11 /* Get tx port status, 3 bytes */ #define MCE_CMD_GETIRNUMPORTS 0x16 /* Get number of ports */ #define MCE_CMD_GETWAKESOURCE 0x17 /* Get wake source */ #define MCE_CMD_GETEMVER 0x22 /* Get emulator interface version */ #define MCE_CMD_GETDEVDETAILS 0x21 /* Get device details (em ver2 only) */ #define MCE_CMD_GETWAKESUPPORT 0x20 /* Get wake details (em ver2 only) */ #define MCE_CMD_GETWAKEVERSION 0x18 /* Get wake pattern (em ver2 only) */ /* Misc commands */ #define MCE_CMD_NOP 0xff /* No operation */ /* Responses to commands (non-error cases) */ #define MCE_RSP_EQIRCFS 0x06 /* tx carrier, 4 bytes */ #define MCE_RSP_EQIRTIMEOUT 0x0c /* rx timeout, 4 bytes */ #define MCE_RSP_GETWAKESOURCE 0x17 /* wake source, 3 bytes */ #define MCE_RSP_EQIRTXPORTS 0x08 /* tx port mask, 3 bytes */ #define MCE_RSP_EQIRRXPORTEN 0x14 /* rx port mask, 3 bytes */ #define MCE_RSP_GETPORTSTATUS 0x11 /* tx port status, 7 bytes */ #define MCE_RSP_EQIRRXCFCNT 0x15 /* rx carrier count, 4 bytes */ #define MCE_RSP_EQIRNUMPORTS 0x16 /* number of ports, 4 bytes */ #define MCE_RSP_EQWAKESUPPORT 0x20 /* wake capabilities, 3 bytes */ #define MCE_RSP_EQWAKEVERSION 0x18 /* wake pattern details, 6 bytes */ #define MCE_RSP_EQDEVDETAILS 0x21 /* device capabilities, 3 bytes */ #define MCE_RSP_EQEMVER 0x22 /* emulator interface ver, 3 bytes */ #define MCE_RSP_FLASHLED 0x23 /* success flashing LED, 2 bytes */ /* Responses to error cases, must send MCE_CMD_RESUME to clear them */ #define MCE_RSP_CMD_ILLEGAL 0xfe /* illegal command for port, 2 bytes */ #define MCE_RSP_TX_TIMEOUT 0x81 /* tx timed out, 2 bytes */ /* Misc commands/responses not defined in the MCE remote/transceiver spec */ #define MCE_CMD_SIG_END 0x01 /* End of signal */ #define MCE_CMD_PING 0x03 /* Ping device */ #define MCE_CMD_UNKNOWN 0x04 /* Unknown */ #define MCE_CMD_UNKNOWN2 0x05 /* Unknown */ #define MCE_CMD_UNKNOWN3 0x09 /* Unknown */ #define MCE_CMD_UNKNOWN4 0x0a /* Unknown */ #define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */ #define MCE_CMD_UNKNOWN5 0x0e /* Unknown */ #define MCE_CMD_UNKNOWN6 0x0f /* Unknown */ #define MCE_CMD_UNKNOWN8 0x19 /* Unknown */ #define MCE_CMD_UNKNOWN9 0x1b /* Unknown */ #define MCE_CMD_NULL 0x00 /* These show up various places... */ /* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR, * then we're looking at a raw IR data sample */ #define MCE_COMMAND_IRDATA 0x80 #define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */ #define VENDOR_PHILIPS 0x0471 #define VENDOR_SMK 0x0609 #define VENDOR_TATUNG 0x1460 #define VENDOR_GATEWAY 0x107b #define VENDOR_SHUTTLE 0x1308 #define VENDOR_SHUTTLE2 0x051c #define VENDOR_MITSUMI 0x03ee #define VENDOR_TOPSEED 0x1784 #define VENDOR_RICAVISION 0x179d #define VENDOR_ITRON 0x195d #define VENDOR_FIC 0x1509 #define VENDOR_LG 0x043e #define VENDOR_MICROSOFT 0x045e #define VENDOR_FORMOSA 0x147a #define VENDOR_FINTEK 0x1934 #define VENDOR_PINNACLE 0x2304 #define VENDOR_ECS 0x1019 #define VENDOR_WISTRON 0x0fb8 #define VENDOR_COMPRO 0x185b #define VENDOR_NORTHSTAR 0x04eb #define VENDOR_REALTEK 0x0bda #define VENDOR_TIVO 0x105a #define VENDOR_CONEXANT 0x0572 #define VENDOR_TWISTEDMELON 0x2596 #define VENDOR_HAUPPAUGE 0x2040 #define VENDOR_PCTV 0x2013 #define VENDOR_ADAPTEC 0x03f3 enum mceusb_model_type { MCE_GEN2 = 0, /* Most boards */ MCE_GEN1, MCE_GEN3, MCE_GEN3_BROKEN_IRTIMEOUT, MCE_GEN2_TX_INV, MCE_GEN2_TX_INV_RX_GOOD, POLARIS_EVK, CX_HYBRID_TV, MULTIFUNCTION, TIVO_KIT, MCE_GEN2_NO_TX, HAUPPAUGE_CX_HYBRID_TV, EVROMEDIA_FULL_HYBRID_FULLHD, ASTROMETA_T2HYBRID, }; struct mceusb_model { u32 mce_gen1:1; u32 mce_gen2:1; u32 mce_gen3:1; u32 tx_mask_normal:1; u32 no_tx:1; u32 broken_irtimeout:1; /* * 2nd IR receiver (short-range, wideband) for learning mode: * 0, absent 2nd receiver (rx2) * 1, rx2 present * 2, rx2 which under counts IR carrier cycles */ u32 rx2; int ir_intfnum; const char *rc_map; /* Allow specify a per-board map */ const char *name; /* per-board name */ }; static const struct mceusb_model mceusb_model[] = { [MCE_GEN1] = { .mce_gen1 = 1, .tx_mask_normal = 1, .rx2 = 2, }, [MCE_GEN2] = { .mce_gen2 = 1, .rx2 = 2, }, [MCE_GEN2_NO_TX] = { .mce_gen2 = 1, .no_tx = 1, }, [MCE_GEN2_TX_INV] = { .mce_gen2 = 1, .tx_mask_normal = 1, .rx2 = 1, }, [MCE_GEN2_TX_INV_RX_GOOD] = { .mce_gen2 = 1, .tx_mask_normal = 1, .rx2 = 2, }, [MCE_GEN3] = { .mce_gen3 = 1, .tx_mask_normal = 1, .rx2 = 2, }, [MCE_GEN3_BROKEN_IRTIMEOUT] = { .mce_gen3 = 1, .tx_mask_normal = 1, .rx2 = 2, .broken_irtimeout = 1 }, [POLARIS_EVK] = { /* * In fact, the EVK is shipped without * remotes, but we should have something handy, * to allow testing it */ .name = "Conexant Hybrid TV (cx231xx) MCE IR", .rx2 = 2, }, [CX_HYBRID_TV] = { .no_tx = 1, /* tx isn't wired up at all */ .name = "Conexant Hybrid TV (cx231xx) MCE IR", }, [HAUPPAUGE_CX_HYBRID_TV] = { .no_tx = 1, /* eeprom says it has no tx */ .name = "Conexant Hybrid TV (cx231xx) MCE IR no TX", }, [MULTIFUNCTION] = { .mce_gen2 = 1, .ir_intfnum = 2, .rx2 = 2, }, [TIVO_KIT] = { .mce_gen2 = 1, .rc_map = RC_MAP_TIVO, .rx2 = 2, }, [EVROMEDIA_FULL_HYBRID_FULLHD] = { .name = "Evromedia USB Full Hybrid Full HD", .no_tx = 1, .rc_map = RC_MAP_MSI_DIGIVOX_III, }, [ASTROMETA_T2HYBRID] = { .name = "Astrometa T2Hybrid", .no_tx = 1, .rc_map = RC_MAP_ASTROMETA_T2HYBRID, } }; static const struct usb_device_id mceusb_dev_table[] = { /* Original Microsoft MCE IR Transceiver (often HP-branded) */ { USB_DEVICE(VENDOR_MICROSOFT, 0x006d), .driver_info = MCE_GEN1 }, /* Philips Infrared Transceiver - Sahara branded */ { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, /* Philips Infrared Transceiver - HP branded */ { USB_DEVICE(VENDOR_PHILIPS, 0x060c), .driver_info = MCE_GEN2_TX_INV }, /* Philips SRM5100 */ { USB_DEVICE(VENDOR_PHILIPS, 0x060d) }, /* Philips Infrared Transceiver - Omaura */ { USB_DEVICE(VENDOR_PHILIPS, 0x060f) }, /* Philips Infrared Transceiver - Spinel plus */ { USB_DEVICE(VENDOR_PHILIPS, 0x0613) }, /* Philips eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, /* Philips/Spinel plus IR transceiver for ASUS */ { USB_DEVICE(VENDOR_PHILIPS, 0x206c) }, /* Philips/Spinel plus IR transceiver for ASUS */ { USB_DEVICE(VENDOR_PHILIPS, 0x2088) }, /* Philips IR transceiver (Dell branded) */ { USB_DEVICE(VENDOR_PHILIPS, 0x2093), .driver_info = MCE_GEN2_TX_INV }, /* Realtek MCE IR Receiver and card reader */ { USB_DEVICE(VENDOR_REALTEK, 0x0161), .driver_info = MULTIFUNCTION }, /* SMK/Toshiba G83C0004D410 */ { USB_DEVICE(VENDOR_SMK, 0x031d), .driver_info = MCE_GEN2_TX_INV_RX_GOOD }, /* SMK eHome Infrared Transceiver (Sony VAIO) */ { USB_DEVICE(VENDOR_SMK, 0x0322), .driver_info = MCE_GEN2_TX_INV }, /* bundled with Hauppauge PVR-150 */ { USB_DEVICE(VENDOR_SMK, 0x0334), .driver_info = MCE_GEN2_TX_INV }, /* SMK eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_SMK, 0x0338) }, /* SMK/I-O Data GV-MC7/RCKIT Receiver */ { USB_DEVICE(VENDOR_SMK, 0x0353), .driver_info = MCE_GEN2_NO_TX }, /* SMK RXX6000 Infrared Receiver */ { USB_DEVICE(VENDOR_SMK, 0x0357), .driver_info = MCE_GEN2_NO_TX }, /* Tatung eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_TATUNG, 0x9150) }, /* Shuttle eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) }, /* Shuttle eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) }, /* Gateway eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_GATEWAY, 0x3009) }, /* Mitsumi */ { USB_DEVICE(VENDOR_MITSUMI, 0x2501) }, /* Topseed eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_TOPSEED, 0x0001), .driver_info = MCE_GEN2_TX_INV }, /* Topseed HP eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_TOPSEED, 0x0006), .driver_info = MCE_GEN2_TX_INV }, /* Topseed eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_TOPSEED, 0x0007), .driver_info = MCE_GEN2_TX_INV }, /* Topseed eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_TOPSEED, 0x0008), .driver_info = MCE_GEN3 }, /* Topseed eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_TOPSEED, 0x000a), .driver_info = MCE_GEN2_TX_INV }, /* Topseed eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_TOPSEED, 0x0011), .driver_info = MCE_GEN3_BROKEN_IRTIMEOUT }, /* Ricavision internal Infrared Transceiver */ { USB_DEVICE(VENDOR_RICAVISION, 0x0010) }, /* Itron ione Libra Q-11 */ { USB_DEVICE(VENDOR_ITRON, 0x7002) }, /* FIC eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_FIC, 0x9242) }, /* LG eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_LG, 0x9803) }, /* Microsoft MCE Infrared Transceiver */ { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) }, /* Formosa eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_FORMOSA, 0xe015) }, /* Formosa21 / eHome Infrared Receiver */ { USB_DEVICE(VENDOR_FORMOSA, 0xe016) }, /* Formosa aim / Trust MCE Infrared Receiver */ { USB_DEVICE(VENDOR_FORMOSA, 0xe017), .driver_info = MCE_GEN2_NO_TX }, /* Formosa Industrial Computing / Beanbag Emulation Device */ { USB_DEVICE(VENDOR_FORMOSA, 0xe018) }, /* Formosa21 / eHome Infrared Receiver */ { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) }, /* Formosa Industrial Computing AIM IR605/A */ { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) }, /* Formosa Industrial Computing */ { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) }, /* Formosa Industrial Computing */ { USB_DEVICE(VENDOR_FORMOSA, 0xe042) }, /* Fintek eHome Infrared Transceiver (HP branded) */ { USB_DEVICE(VENDOR_FINTEK, 0x5168), .driver_info = MCE_GEN2_TX_INV }, /* Fintek eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */ { USB_DEVICE(VENDOR_FINTEK, 0x0702) }, /* Pinnacle Remote Kit */ { USB_DEVICE(VENDOR_PINNACLE, 0x0225), .driver_info = MCE_GEN3 }, /* Elitegroup Computer Systems IR */ { USB_DEVICE(VENDOR_ECS, 0x0f38) }, /* Wistron Corp. eHome Infrared Receiver */ { USB_DEVICE(VENDOR_WISTRON, 0x0002) }, /* Compro K100 */ { USB_DEVICE(VENDOR_COMPRO, 0x3020) }, /* Compro K100 v2 */ { USB_DEVICE(VENDOR_COMPRO, 0x3082) }, /* Northstar Systems, Inc. eHome Infrared Transceiver */ { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) }, /* TiVo PC IR Receiver */ { USB_DEVICE(VENDOR_TIVO, 0x2000), .driver_info = TIVO_KIT }, /* Conexant Hybrid TV "Shelby" Polaris SDK */ { USB_DEVICE(VENDOR_CONEXANT, 0x58a1), .driver_info = POLARIS_EVK }, /* Conexant Hybrid TV RDU253S Polaris */ { USB_DEVICE(VENDOR_CONEXANT, 0x58a5), .driver_info = CX_HYBRID_TV }, /* Twisted Melon Inc. - Manta Mini Receiver */ { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8008) }, /* Twisted Melon Inc. - Manta Pico Receiver */ { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8016) }, /* Twisted Melon Inc. - Manta Transceiver */ { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8042) }, /* Hauppauge WINTV-HVR-HVR 930C-HD - based on cx231xx */ { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb130), .driver_info = HAUPPAUGE_CX_HYBRID_TV }, { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb131), .driver_info = HAUPPAUGE_CX_HYBRID_TV }, { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb138), .driver_info = HAUPPAUGE_CX_HYBRID_TV }, { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb139), .driver_info = HAUPPAUGE_CX_HYBRID_TV }, /* Hauppauge WinTV-HVR-935C - based on cx231xx */ { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb151), .driver_info = HAUPPAUGE_CX_HYBRID_TV }, /* Hauppauge WinTV-HVR-955Q - based on cx231xx */ { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb123), .driver_info = HAUPPAUGE_CX_HYBRID_TV }, /* Hauppauge WinTV-HVR-975 - based on cx231xx */ { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb150), .driver_info = HAUPPAUGE_CX_HYBRID_TV }, { USB_DEVICE(VENDOR_PCTV, 0x0259), .driver_info = HAUPPAUGE_CX_HYBRID_TV }, { USB_DEVICE(VENDOR_PCTV, 0x025e), .driver_info = HAUPPAUGE_CX_HYBRID_TV }, /* Adaptec / HP eHome Receiver */ { USB_DEVICE(VENDOR_ADAPTEC, 0x0094) }, /* Evromedia USB Full Hybrid Full HD */ { USB_DEVICE(0x1b80, 0xd3b2), .driver_info = EVROMEDIA_FULL_HYBRID_FULLHD }, /* Astrometa T2hybrid */ { USB_DEVICE(0x15f4, 0x0135), .driver_info = ASTROMETA_T2HYBRID }, /* Terminating entry */ { } }; /* data structure for each usb transceiver */ struct mceusb_dev { /* ir-core bits */ struct rc_dev *rc; /* optional features we can enable */ bool carrier_report_enabled; bool wideband_rx_enabled; /* aka learning mode, short-range rx */ /* core device bits */ struct device *dev; /* usb */ struct usb_device *usbdev; struct usb_interface *usbintf; struct urb *urb_in; unsigned int pipe_in; struct usb_endpoint_descriptor *usb_ep_out; unsigned int pipe_out; /* buffers and dma */ unsigned char *buf_in; unsigned int len_in; dma_addr_t dma_in; enum { CMD_HEADER = 0, SUBCMD, CMD_DATA, PARSE_IRDATA, } parser_state; u8 cmd, rem; /* Remaining IR data bytes in packet */ struct { u32 connected:1; u32 tx_mask_normal:1; u32 microsoft_gen1:1; u32 no_tx:1; u32 rx2; } flags; /* transmit support */ u32 carrier; unsigned char tx_mask; char phys[64]; enum mceusb_model_type model; bool need_reset; /* flag to issue a device resume cmd */ u8 emver; /* emulator interface version */ u8 num_txports; /* number of transmit ports */ u8 num_rxports; /* number of receive sensors */ u8 txports_cabled; /* bitmask of transmitters with cable */ u8 rxports_active; /* bitmask of active receive sensors */ bool learning_active; /* wideband rx is active */ /* receiver carrier frequency detection support */ u32 pulse_tunit; /* IR pulse "on" cumulative time units */ u32 pulse_count; /* pulse "on" count in measurement interval */ /* * support for async error handler mceusb_deferred_kevent() * where usb_clear_halt(), usb_reset_configuration(), * usb_reset_device(), etc. must be done in process context */ struct work_struct kevent; unsigned long kevent_flags; # define EVENT_TX_HALT 0 # define EVENT_RX_HALT 1 # define EVENT_RST_PEND 31 }; /* MCE Device Command Strings, generally a port and command pair */ static char DEVICE_RESUME[] = {MCE_CMD_NULL, MCE_CMD_PORT_SYS, MCE_CMD_RESUME}; static char GET_REVISION[] = {MCE_CMD_PORT_SYS, MCE_CMD_G_REVISION}; static char GET_EMVER[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETEMVER}; static char GET_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION}; static char FLASH_LED[] = {MCE_CMD_PORT_SYS, MCE_CMD_FLASHLED}; static char GET_UNKNOWN2[] = {MCE_CMD_PORT_IR, MCE_CMD_UNKNOWN2}; static char GET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRCFS}; static char GET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTIMEOUT}; static char GET_NUM_PORTS[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRNUMPORTS}; static char GET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRTXPORTS}; static char GET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_CMD_GETIRRXPORTEN}; /* sub in desired values in lower byte or bytes for full command */ /* FIXME: make use of these for transmit. static char SET_CARRIER_FREQ[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRCFS, 0x00, 0x00}; static char SET_TX_BITMASK[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00}; static char SET_RX_TIMEOUT[] = {MCE_CMD_PORT_IR, MCE_CMD_SETIRTIMEOUT, 0x00, 0x00}; static char SET_RX_SENSOR[] = {MCE_CMD_PORT_IR, MCE_RSP_EQIRRXPORTEN, 0x00}; */ static int mceusb_cmd_datasize(u8 cmd, u8 subcmd) { int datasize = 0; switch (cmd) { case MCE_CMD_NULL: if (subcmd == MCE_CMD_PORT_SYS) datasize = 1; break; case MCE_CMD_PORT_SYS: switch (subcmd) { case MCE_RSP_GETPORTSTATUS: datasize = 5; break; case MCE_RSP_EQWAKEVERSION: datasize = 4; break; case MCE_CMD_G_REVISION: datasize = 4; break; case MCE_RSP_EQWAKESUPPORT: case MCE_RSP_GETWAKESOURCE: case MCE_RSP_EQDEVDETAILS: case MCE_RSP_EQEMVER: datasize = 1; break; } break; case MCE_CMD_PORT_IR: switch (subcmd) { case MCE_CMD_UNKNOWN: case MCE_RSP_EQIRCFS: case MCE_RSP_EQIRTIMEOUT: case MCE_RSP_EQIRRXCFCNT: case MCE_RSP_EQIRNUMPORTS: datasize = 2; break; case MCE_CMD_SIG_END: case MCE_RSP_EQIRTXPORTS: case MCE_RSP_EQIRRXPORTEN: datasize = 1; break; } } return datasize; } static void mceusb_dev_printdata(struct mceusb_dev *ir, u8 *buf, int buf_len, int offset, int len, bool out) { #if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) char *inout; u8 cmd, subcmd, *data; struct device *dev = ir->dev; u32 carrier, period; if (offset < 0 || offset >= buf_len) return; dev_dbg(dev, "%cx data[%d]: %*ph (len=%d sz=%d)", (out ? 't' : 'r'), offset, min(len, buf_len - offset), buf + offset, len, buf_len); inout = out ? "Request" : "Got"; cmd = buf[offset]; subcmd = (offset + 1 < buf_len) ? buf[offset + 1] : 0; data = &buf[offset] + 2; /* Trace meaningless 0xb1 0x60 header bytes on original receiver */ if (ir->flags.microsoft_gen1 && !out && !offset) { dev_dbg(dev, "MCE gen 1 header"); return; } /* Trace IR data header or trailer */ if (cmd != MCE_CMD_PORT_IR && (cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA) { if (cmd == MCE_IRDATA_TRAILER) dev_dbg(dev, "End of raw IR data"); else dev_dbg(dev, "Raw IR data, %d pulse/space samples", cmd & MCE_PACKET_LENGTH_MASK); return; } /* Unexpected end of buffer? */ if (offset + len > buf_len) return; /* Decode MCE command/response */ switch (cmd) { case MCE_CMD_NULL: if (subcmd == MCE_CMD_NULL) break; if ((subcmd == MCE_CMD_PORT_SYS) && (data[0] == MCE_CMD_RESUME)) dev_dbg(dev, "Device resume requested"); else dev_dbg(dev, "Unknown command 0x%02x 0x%02x", cmd, subcmd); break; case MCE_CMD_PORT_SYS: switch (subcmd) { case MCE_RSP_EQEMVER: if (!out) dev_dbg(dev, "Emulator interface version %x", data[0]); break; case MCE_CMD_G_REVISION: if (len == 2) dev_dbg(dev, "Get hw/sw rev?"); else dev_dbg(dev, "hw/sw rev %*ph", 4, &buf[offset + 2]); break; case MCE_CMD_RESUME: dev_dbg(dev, "Device resume requested"); break; case MCE_RSP_CMD_ILLEGAL: dev_dbg(dev, "Illegal PORT_SYS command"); break; case MCE_RSP_EQWAKEVERSION: if (!out) dev_dbg(dev, "Wake version, proto: 0x%02x, payload: 0x%02x, address: 0x%02x, version: 0x%02x", data[0], data[1], data[2], data[3]); break; case MCE_RSP_GETPORTSTATUS: if (!out) /* We use data1 + 1 here, to match hw labels */ dev_dbg(dev, "TX port %d: blaster is%s connected", data[0] + 1, data[3] ? " not" : ""); break; case MCE_CMD_FLASHLED: dev_dbg(dev, "Attempting to flash LED"); break; default: dev_dbg(dev, "Unknown command 0x%02x 0x%02x", cmd, subcmd); break; } break; case MCE_CMD_PORT_IR: switch (subcmd) { case MCE_CMD_SIG_END: dev_dbg(dev, "End of signal"); break; case MCE_CMD_PING: dev_dbg(dev, "Ping"); break; case MCE_CMD_UNKNOWN: dev_dbg(dev, "Resp to 9f 05 of 0x%02x 0x%02x", data[0], data[1]); break; case MCE_RSP_EQIRCFS: if (!data[0] && !data[1]) { dev_dbg(dev, "%s: no carrier", inout); break; } // prescaler should make sense if (data[0] > 8) break; period = DIV_ROUND_CLOSEST((1U << data[0] * 2) * (data[1] + 1), 10); if (!period) break; carrier = USEC_PER_SEC / period; dev_dbg(dev, "%s carrier of %u Hz (period %uus)", inout, carrier, period); break; case MCE_CMD_GETIRCFS: dev_dbg(dev, "Get carrier mode and freq"); break; case MCE_RSP_EQIRTXPORTS: dev_dbg(dev, "%s transmit blaster mask of 0x%02x", inout, data[0]); break; case MCE_RSP_EQIRTIMEOUT: /* value is in units of 50us, so x*50/1000 ms */ period = ((data[0] << 8) | data[1]) * MCE_TIME_UNIT / 1000; dev_dbg(dev, "%s receive timeout of %d ms", inout, period); break; case MCE_CMD_GETIRTIMEOUT: dev_dbg(dev, "Get receive timeout"); break; case MCE_CMD_GETIRTXPORTS: dev_dbg(dev, "Get transmit blaster mask"); break; case MCE_RSP_EQIRRXPORTEN: dev_dbg(dev, "%s %s-range receive sensor in use", inout, data[0] == 0x02 ? "short" : "long"); break; case MCE_CMD_GETIRRXPORTEN: /* aka MCE_RSP_EQIRRXCFCNT */ if (out) dev_dbg(dev, "Get receive sensor"); else dev_dbg(dev, "RX carrier cycle count: %d", ((data[0] << 8) | data[1])); break; case MCE_RSP_EQIRNUMPORTS: if (out) break; dev_dbg(dev, "Num TX ports: %x, num RX ports: %x", data[0], data[1]); break; case MCE_RSP_CMD_ILLEGAL: dev_dbg(dev, "Illegal PORT_IR command"); break; case MCE_RSP_TX_TIMEOUT: dev_dbg(dev, "IR TX timeout (TX buffer underrun)"); break; default: dev_dbg(dev, "Unknown command 0x%02x 0x%02x", cmd, subcmd); break; } break; default: break; } #endif } /* * Schedule work that can't be done in interrupt handlers * (mceusb_dev_recv() and mce_write_callback()) nor BH work. * Invokes mceusb_deferred_kevent() for recovering from * error events specified by the kevent bit field. */ static void mceusb_defer_kevent(struct mceusb_dev *ir, int kevent) { set_bit(kevent, &ir->kevent_flags); if (test_bit(EVENT_RST_PEND, &ir->kevent_flags)) { dev_dbg(ir->dev, "kevent %d dropped pending USB Reset Device", kevent); return; } if (!schedule_work(&ir->kevent)) dev_dbg(ir->dev, "kevent %d already scheduled", kevent); else dev_dbg(ir->dev, "kevent %d scheduled", kevent); } static void mce_write_callback(struct urb *urb) { if (!urb) return; complete(urb->context); } /* * Write (TX/send) data to MCE device USB endpoint out. * Used for IR blaster TX and MCE device commands. * * Return: The number of bytes written (> 0) or errno (< 0). */ static int mce_write(struct mceusb_dev *ir, u8 *data, int size) { int ret; struct urb *urb; struct device *dev = ir->dev; unsigned char *buf_out; struct completion tx_done; unsigned long expire; unsigned long ret_wait; mceusb_dev_printdata(ir, data, size, 0, size, true); urb = usb_alloc_urb(0, GFP_KERNEL); if (unlikely(!urb)) { dev_err(dev, "Error: mce write couldn't allocate urb"); return -ENOMEM; } buf_out = kmalloc(size, GFP_KERNEL); if (!buf_out) { usb_free_urb(urb); return -ENOMEM; } init_completion(&tx_done); /* outbound data */ if (usb_endpoint_xfer_int(ir->usb_ep_out)) usb_fill_int_urb(urb, ir->usbdev, ir->pipe_out, buf_out, size, mce_write_callback, &tx_done, ir->usb_ep_out->bInterval); else usb_fill_bulk_urb(urb, ir->usbdev, ir->pipe_out, buf_out, size, mce_write_callback, &tx_done); memcpy(buf_out, data, size); ret = usb_submit_urb(urb, GFP_KERNEL); if (ret) { dev_err(dev, "Error: mce write submit urb error = %d", ret); kfree(buf_out); usb_free_urb(urb); return ret; } expire = msecs_to_jiffies(USB_TX_TIMEOUT); ret_wait = wait_for_completion_timeout(&tx_done, expire); if (!ret_wait) { dev_err(dev, "Error: mce write timed out (expire = %lu (%dms))", expire, USB_TX_TIMEOUT); usb_kill_urb(urb); ret = (urb->status == -ENOENT ? -ETIMEDOUT : urb->status); } else { ret = urb->status; } if (ret >= 0) ret = urb->actual_length; /* bytes written */ switch (urb->status) { /* success */ case 0: break; case -ECONNRESET: case -ENOENT: case -EILSEQ: case -ESHUTDOWN: break; case -EPIPE: dev_err(ir->dev, "Error: mce write urb status = %d (TX HALT)", urb->status); mceusb_defer_kevent(ir, EVENT_TX_HALT); break; default: dev_err(ir->dev, "Error: mce write urb status = %d", urb->status); break; } dev_dbg(dev, "tx done status = %d (wait = %lu, expire = %lu (%dms), urb->actual_length = %d, urb->status = %d)", ret, ret_wait, expire, USB_TX_TIMEOUT, urb->actual_length, urb->status); kfree(buf_out); usb_free_urb(urb); return ret; } static void mce_command_out(struct mceusb_dev *ir, u8 *data, int size) { int rsize = sizeof(DEVICE_RESUME); if (ir->need_reset) { ir->need_reset = false; mce_write(ir, DEVICE_RESUME, rsize); msleep(10); } mce_write(ir, data, size); msleep(10); } /* * Transmit IR out the MCE device IR blaster port(s). * * Convert IR pulse/space sequence from LIRC to MCE format. * Break up a long IR sequence into multiple parts (MCE IR data packets). * * u32 txbuf[] consists of IR pulse, space, ..., and pulse times in usec. * Pulses and spaces are implicit by their position. * The first IR sample, txbuf[0], is always a pulse. * * u8 irbuf[] consists of multiple IR data packets for the MCE device. * A packet is 1 u8 MCE_IRDATA_HEADER and up to 30 u8 IR samples. * An IR sample is 1-bit pulse/space flag with 7-bit time * in MCE time units (50usec). * * Return: The number of IR samples sent (> 0) or errno (< 0). */ static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count) { struct mceusb_dev *ir = dev->priv; u8 cmdbuf[3] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRTXPORTS, 0x00 }; u8 irbuf[MCE_IRBUF_SIZE]; int ircount = 0; unsigned int irsample; int i, length, ret; /* Send the set TX ports command */ cmdbuf[2] = ir->tx_mask; mce_command_out(ir, cmdbuf, sizeof(cmdbuf)); /* Generate mce IR data packet */ for (i = 0; i < count; i++) { irsample = txbuf[i] / MCE_TIME_UNIT; /* loop to support long pulses/spaces > 6350us (127*50us) */ while (irsample > 0) { /* Insert IR header every 30th entry */ if (ircount % MCE_PACKET_SIZE == 0) { /* Room for IR header and one IR sample? */ if (ircount >= MCE_IRBUF_SIZE - 1) { /* Send near full buffer */ ret = mce_write(ir, irbuf, ircount); if (ret < 0) return ret; ircount = 0; } irbuf[ircount++] = MCE_IRDATA_HEADER; } /* Insert IR sample */ if (irsample <= MCE_MAX_PULSE_LENGTH) { irbuf[ircount] = irsample; irsample = 0; } else { irbuf[ircount] = MCE_MAX_PULSE_LENGTH; irsample -= MCE_MAX_PULSE_LENGTH; } /* * Even i = IR pulse * Odd i = IR space */ irbuf[ircount] |= (i & 1 ? 0 : MCE_PULSE_BIT); ircount++; /* IR buffer full? */ if (ircount >= MCE_IRBUF_SIZE) { /* Fix packet length in last header */ length = ircount % MCE_PACKET_SIZE; if (length > 0) irbuf[ircount - length] -= MCE_PACKET_SIZE - length; /* Send full buffer */ ret = mce_write(ir, irbuf, ircount); if (ret < 0) return ret; ircount = 0; } } } /* after for loop, 0 <= ircount < MCE_IRBUF_SIZE */ /* Fix packet length in last header */ length = ircount % MCE_PACKET_SIZE; if (length > 0) irbuf[ircount - length] -= MCE_PACKET_SIZE - length; /* Append IR trailer (0x80) to final partial (or empty) IR buffer */ irbuf[ircount++] = MCE_IRDATA_TRAILER; /* Send final buffer */ ret = mce_write(ir, irbuf, ircount); if (ret < 0) return ret; return count; } /* Sets active IR outputs -- mce devices typically have two */ static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask) { struct mceusb_dev *ir = dev->priv; /* return number of transmitters */ int emitters = ir->num_txports ? ir->num_txports : 2; if (mask >= (1 << emitters)) return emitters; if (ir->flags.tx_mask_normal) ir->tx_mask = mask; else ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ? mask ^ MCE_DEFAULT_TX_MASK : mask) << 1; return 0; } /* Sets the send carrier frequency and mode */ static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier) { struct mceusb_dev *ir = dev->priv; int clk = 10000000; int prescaler = 0, divisor = 0; unsigned char cmdbuf[4] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRCFS, 0x00, 0x00 }; /* Carrier has changed */ if (ir->carrier != carrier) { if (carrier == 0) { ir->carrier = carrier; cmdbuf[2] = MCE_CMD_SIG_END; cmdbuf[3] = MCE_IRDATA_TRAILER; dev_dbg(ir->dev, "disabling carrier modulation"); mce_command_out(ir, cmdbuf, sizeof(cmdbuf)); return 0; } for (prescaler = 0; prescaler < 4; ++prescaler) { divisor = (clk >> (2 * prescaler)) / carrier; if (divisor <= 0xff) { ir->carrier = carrier; cmdbuf[2] = prescaler; cmdbuf[3] = divisor; dev_dbg(ir->dev, "requesting %u HZ carrier", carrier); /* Transmit new carrier to mce device */ mce_command_out(ir, cmdbuf, sizeof(cmdbuf)); return 0; } } return -EINVAL; } return 0; } static int mceusb_set_timeout(struct rc_dev *dev, unsigned int timeout) { u8 cmdbuf[4] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRTIMEOUT, 0, 0 }; struct mceusb_dev *ir = dev->priv; unsigned int units; units = DIV_ROUND_UP(timeout, MCE_TIME_UNIT); cmdbuf[2] = units >> 8; cmdbuf[3] = units; mce_command_out(ir, cmdbuf, sizeof(cmdbuf)); /* get receiver timeout value */ mce_command_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); return 0; } /* * Select or deselect the 2nd receiver port. * Second receiver is learning mode, wide-band, short-range receiver. * Only one receiver (long or short range) may be active at a time. */ static int mceusb_set_rx_wideband(struct rc_dev *dev, int enable) { struct mceusb_dev *ir = dev->priv; unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRRXPORTEN, 0x00 }; dev_dbg(ir->dev, "select %s-range receive sensor", enable ? "short" : "long"); if (enable) { ir->wideband_rx_enabled = true; cmdbuf[2] = 2; /* port 2 is short range receiver */ } else { ir->wideband_rx_enabled = false; cmdbuf[2] = 1; /* port 1 is long range receiver */ } mce_command_out(ir, cmdbuf, sizeof(cmdbuf)); /* response from device sets ir->learning_active */ return 0; } /* * Enable/disable receiver carrier frequency pass through reporting. * Only the short-range receiver has carrier frequency measuring capability. * Implicitly select this receiver when enabling carrier frequency reporting. */ static int mceusb_set_rx_carrier_report(struct rc_dev *dev, int enable) { struct mceusb_dev *ir = dev->priv; unsigned char cmdbuf[3] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRRXPORTEN, 0x00 }; dev_dbg(ir->dev, "%s short-range receiver carrier reporting", enable ? "enable" : "disable"); if (enable) { ir->carrier_report_enabled = true; if (!ir->learning_active) { cmdbuf[2] = 2; /* port 2 is short range receiver */ mce_command_out(ir, cmdbuf, sizeof(cmdbuf)); } } else { ir->carrier_report_enabled = false; /* * Revert to normal (long-range) receiver only if the * wideband (short-range) receiver wasn't explicitly * enabled. */ if (ir->learning_active && !ir->wideband_rx_enabled) { cmdbuf[2] = 1; /* port 1 is long range receiver */ mce_command_out(ir, cmdbuf, sizeof(cmdbuf)); } } return 0; } /* * Handle PORT_SYS/IR command response received from the MCE device. * * Assumes single response with all its data (not truncated) * in buf_in[]. The response itself determines its total length * (mceusb_cmd_datasize() + 2) and hence the minimum size of buf_in[]. * * We don't do anything but print debug spew for many of the command bits * we receive from the hardware, but some of them are useful information * we want to store so that we can use them. */ static void mceusb_handle_command(struct mceusb_dev *ir, u8 *buf_in) { u8 cmd = buf_in[0]; u8 subcmd = buf_in[1]; u8 *hi = &buf_in[2]; /* read only when required */ u8 *lo = &buf_in[3]; /* read only when required */ struct ir_raw_event rawir = {}; u32 carrier_cycles; u32 cycles_fix; if (cmd == MCE_CMD_PORT_SYS) { switch (subcmd) { /* the one and only 5-byte return value command */ case MCE_RSP_GETPORTSTATUS: if (buf_in[5] == 0 && *hi < 8) ir->txports_cabled |= 1 << *hi; break; /* 1-byte return value commands */ case MCE_RSP_EQEMVER: ir->emver = *hi; break; /* No return value commands */ case MCE_RSP_CMD_ILLEGAL: ir->need_reset = true; break; default: break; } return; } if (cmd != MCE_CMD_PORT_IR) return; switch (subcmd) { /* 2-byte return value commands */ case MCE_RSP_EQIRTIMEOUT: ir->rc->timeout = (*hi << 8 | *lo) * MCE_TIME_UNIT; break; case MCE_RSP_EQIRNUMPORTS: ir->num_txports = *hi; ir->num_rxports = *lo; break; case MCE_RSP_EQIRRXCFCNT: /* * The carrier cycle counter can overflow and wrap around * without notice from the device. So frequency measurement * will be inaccurate with long duration IR. * * The long-range (non learning) receiver always reports * zero count so we always ignore its report. */ if (ir->carrier_report_enabled && ir->learning_active && ir->pulse_tunit > 0) { carrier_cycles = (*hi << 8 | *lo); /* * Adjust carrier cycle count by adding * 1 missed count per pulse "on" */ cycles_fix = ir->flags.rx2 == 2 ? ir->pulse_count : 0; rawir.carrier_report = 1; rawir.carrier = (1000000u / MCE_TIME_UNIT) * (carrier_cycles + cycles_fix) / ir->pulse_tunit; dev_dbg(ir->dev, "RX carrier frequency %u Hz (pulse count = %u, cycles = %u, duration = %u, rx2 = %u)", rawir.carrier, ir->pulse_count, carrier_cycles, ir->pulse_tunit, ir->flags.rx2); ir_raw_event_store(ir->rc, &rawir); } break; /* 1-byte return value commands */ case MCE_RSP_EQIRTXPORTS: ir->tx_mask = *hi; break; case MCE_RSP_EQIRRXPORTEN: ir->learning_active = ((*hi & 0x02) == 0x02); if (ir->rxports_active != *hi) { dev_info(ir->dev, "%s-range (0x%x) receiver active", ir->learning_active ? "short" : "long", *hi); ir->rxports_active = *hi; } break; /* No return value commands */ case MCE_RSP_CMD_ILLEGAL: case MCE_RSP_TX_TIMEOUT: ir->need_reset = true; break; default: break; } } static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) { struct ir_raw_event rawir = {}; bool event = false; int i = 0; /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ if (ir->flags.microsoft_gen1) i = 2; /* if there's no data, just return now */ if (buf_len <= i) return; for (; i < buf_len; i++) { switch (ir->parser_state) { case SUBCMD: ir->rem = mceusb_cmd_datasize(ir->cmd, ir->buf_in[i]); mceusb_dev_printdata(ir, ir->buf_in, buf_len, i - 1, ir->rem + 2, false); if (i + ir->rem < buf_len) mceusb_handle_command(ir, &ir->buf_in[i - 1]); ir->parser_state = CMD_DATA; break; case PARSE_IRDATA: ir->rem--; rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK); if (unlikely(!rawir.duration)) { dev_dbg(ir->dev, "nonsensical irdata %02x with duration 0", ir->buf_in[i]); break; } if (rawir.pulse) { ir->pulse_tunit += rawir.duration; ir->pulse_count++; } rawir.duration *= MCE_TIME_UNIT; dev_dbg(ir->dev, "Storing %s %u us (%02x)", rawir.pulse ? "pulse" : "space", rawir.duration, ir->buf_in[i]); if (ir_raw_event_store_with_filter(ir->rc, &rawir)) event = true; break; case CMD_DATA: ir->rem--; break; case CMD_HEADER: ir->cmd = ir->buf_in[i]; if ((ir->cmd == MCE_CMD_PORT_IR) || ((ir->cmd & MCE_PORT_MASK) != MCE_COMMAND_IRDATA)) { /* * got PORT_SYS, PORT_IR, or unknown * command response prefix */ ir->parser_state = SUBCMD; continue; } /* * got IR data prefix (0x80 + num_bytes) * decode MCE packets of the form {0x83, AA, BB, CC} * IR data packets can span USB messages */ ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); mceusb_dev_printdata(ir, ir->buf_in, buf_len, i, ir->rem + 1, false); if (ir->rem) { ir->parser_state = PARSE_IRDATA; } else { struct ir_raw_event ev = { .timeout = 1, .duration = ir->rc->timeout }; if (ir_raw_event_store_with_filter(ir->rc, &ev)) event = true; ir->pulse_tunit = 0; ir->pulse_count = 0; } break; } if (ir->parser_state != CMD_HEADER && !ir->rem) ir->parser_state = CMD_HEADER; } /* * Accept IR data spanning multiple rx buffers. * Reject MCE command response spanning multiple rx buffers. */ if (ir->parser_state != PARSE_IRDATA || !ir->rem) ir->parser_state = CMD_HEADER; if (event) { dev_dbg(ir->dev, "processed IR data"); ir_raw_event_handle(ir->rc); } } static void mceusb_dev_recv(struct urb *urb) { struct mceusb_dev *ir; if (!urb) return; ir = urb->context; if (!ir) { usb_unlink_urb(urb); return; } switch (urb->status) { /* success */ case 0: mceusb_process_ir_data(ir, urb->actual_length); break; case -ECONNRESET: case -ENOENT: case -EILSEQ: case -EPROTO: case -ESHUTDOWN: usb_unlink_urb(urb); return; case -EPIPE: dev_err(ir->dev, "Error: urb status = %d (RX HALT)", urb->status); mceusb_defer_kevent(ir, EVENT_RX_HALT); return; default: dev_err(ir->dev, "Error: urb status = %d", urb->status); break; } usb_submit_urb(urb, GFP_ATOMIC); } static void mceusb_get_emulator_version(struct mceusb_dev *ir) { /* If we get no reply or an illegal command reply, its ver 1, says MS */ ir->emver = 1; mce_command_out(ir, GET_EMVER, sizeof(GET_EMVER)); } static void mceusb_gen1_init(struct mceusb_dev *ir) { int ret; struct device *dev = ir->dev; char data[USB_CTRL_MSG_SZ]; /* * This is a strange one. Windows issues a set address to the device * on the receive control pipe and expect a certain value pair back */ ret = usb_control_msg_recv(ir->usbdev, 0, USB_REQ_SET_ADDRESS, USB_DIR_IN | USB_TYPE_VENDOR, 0, 0, data, USB_CTRL_MSG_SZ, 3000, GFP_KERNEL); dev_dbg(dev, "set address - ret = %d", ret); dev_dbg(dev, "set address - data[0] = %d, data[1] = %d", data[0], data[1]); /* set feature: bit rate 38400 bps */ ret = usb_control_msg_send(ir->usbdev, 0, USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, 0xc04e, 0x0000, NULL, 0, 3000, GFP_KERNEL); dev_dbg(dev, "set feature - ret = %d", ret); /* bRequest 4: set char length to 8 bits */ ret = usb_control_msg_send(ir->usbdev, 0, 4, USB_TYPE_VENDOR, 0x0808, 0x0000, NULL, 0, 3000, GFP_KERNEL); dev_dbg(dev, "set char length - retB = %d", ret); /* bRequest 2: set handshaking to use DTR/DSR */ ret = usb_control_msg_send(ir->usbdev, 0, 2, USB_TYPE_VENDOR, 0x0000, 0x0100, NULL, 0, 3000, GFP_KERNEL); dev_dbg(dev, "set handshake - retC = %d", ret); /* device resume */ mce_command_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); /* get hw/sw revision? */ mce_command_out(ir, GET_REVISION, sizeof(GET_REVISION)); } static void mceusb_gen2_init(struct mceusb_dev *ir) { /* device resume */ mce_command_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); /* get wake version (protocol, key, address) */ mce_command_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION)); /* unknown what this one actually returns... */ mce_command_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); } static void mceusb_get_parameters(struct mceusb_dev *ir) { int i; unsigned char cmdbuf[3] = { MCE_CMD_PORT_SYS, MCE_CMD_GETPORTSTATUS, 0x00 }; /* defaults, if the hardware doesn't support querying */ ir->num_txports = 2; ir->num_rxports = 2; /* get number of tx and rx ports */ mce_command_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS)); /* get the carrier and frequency */ mce_command_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); if (ir->num_txports && !ir->flags.no_tx) /* get the transmitter bitmask */ mce_command_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); /* get receiver timeout value */ mce_command_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); /* get receiver sensor setting */ mce_command_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); for (i = 0; i < ir->num_txports; i++) { cmdbuf[2] = i; mce_command_out(ir, cmdbuf, sizeof(cmdbuf)); } } static void mceusb_flash_led(struct mceusb_dev *ir) { if (ir->emver < 2) return; mce_command_out(ir, FLASH_LED, sizeof(FLASH_LED)); } /* * Workqueue function * for resetting or recovering device after occurrence of error events * specified in ir->kevent bit field. * Function runs (via schedule_work()) in non-interrupt context, for * calls here (such as usb_clear_halt()) requiring non-interrupt context. */ static void mceusb_deferred_kevent(struct work_struct *work) { struct mceusb_dev *ir = container_of(work, struct mceusb_dev, kevent); int status; dev_err(ir->dev, "kevent handler called (flags 0x%lx)", ir->kevent_flags); if (test_bit(EVENT_RST_PEND, &ir->kevent_flags)) { dev_err(ir->dev, "kevent handler canceled pending USB Reset Device"); return; } if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) { usb_unlink_urb(ir->urb_in); status = usb_clear_halt(ir->usbdev, ir->pipe_in); dev_err(ir->dev, "rx clear halt status = %d", status); if (status < 0) { /* * Unable to clear RX halt/stall. * Will need to call usb_reset_device(). */ dev_err(ir->dev, "stuck RX HALT state requires USB Reset Device to clear"); usb_queue_reset_device(ir->usbintf); set_bit(EVENT_RST_PEND, &ir->kevent_flags); clear_bit(EVENT_RX_HALT, &ir->kevent_flags); /* Cancel all other error events and handlers */ clear_bit(EVENT_TX_HALT, &ir->kevent_flags); return; } clear_bit(EVENT_RX_HALT, &ir->kevent_flags); status = usb_submit_urb(ir->urb_in, GFP_KERNEL); if (status < 0) { dev_err(ir->dev, "rx unhalt submit urb error = %d", status); } } if (test_bit(EVENT_TX_HALT, &ir->kevent_flags)) { status = usb_clear_halt(ir->usbdev, ir->pipe_out); dev_err(ir->dev, "tx clear halt status = %d", status); if (status < 0) { /* * Unable to clear TX halt/stall. * Will need to call usb_reset_device(). */ dev_err(ir->dev, "stuck TX HALT state requires USB Reset Device to clear"); usb_queue_reset_device(ir->usbintf); set_bit(EVENT_RST_PEND, &ir->kevent_flags); clear_bit(EVENT_TX_HALT, &ir->kevent_flags); /* Cancel all other error events and handlers */ clear_bit(EVENT_RX_HALT, &ir->kevent_flags); return; } clear_bit(EVENT_TX_HALT, &ir->kevent_flags); } } static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) { struct usb_device *udev = ir->usbdev; struct device *dev = ir->dev; struct rc_dev *rc; int ret; rc = rc_allocate_device(RC_DRIVER_IR_RAW); if (!rc) { dev_err(dev, "remote dev allocation failed"); goto out; } usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); rc->device_name = mceusb_model[ir->model].name ? : "Media Center Ed. eHome Infrared Remote Transceiver"; rc->input_phys = ir->phys; usb_to_input_id(ir->usbdev, &rc->input_id); rc->dev.parent = dev; rc->priv = ir; rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER; rc->rx_resolution = MCE_TIME_UNIT; rc->min_timeout = MCE_TIME_UNIT; rc->timeout = MS_TO_US(100); if (!mceusb_model[ir->model].broken_irtimeout) { rc->s_timeout = mceusb_set_timeout; rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT; } else { /* * If we can't set the timeout using CMD_SETIRTIMEOUT, we can * rely on software timeouts for timeouts < 100ms. */ rc->max_timeout = rc->timeout; } if (!ir->flags.no_tx) { rc->s_tx_mask = mceusb_set_tx_mask; rc->s_tx_carrier = mceusb_set_tx_carrier; rc->tx_ir = mceusb_tx_ir; } if (ir->flags.rx2 > 0) { rc->s_wideband_receiver = mceusb_set_rx_wideband; rc->s_carrier_report = mceusb_set_rx_carrier_report; } rc->driver_name = DRIVER_NAME; switch (le16_to_cpu(udev->descriptor.idVendor)) { case VENDOR_HAUPPAUGE: rc->map_name = RC_MAP_HAUPPAUGE; break; case VENDOR_PCTV: rc->map_name = RC_MAP_PINNACLE_PCTV_HD; break; default: rc->map_name = RC_MAP_RC6_MCE; } if (mceusb_model[ir->model].rc_map) rc->map_name = mceusb_model[ir->model].rc_map; ret = rc_register_device(rc); if (ret < 0) { dev_err(dev, "remote dev registration failed"); goto out; } return rc; out: rc_free_device(rc); return NULL; } static int mceusb_dev_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *dev = interface_to_usbdev(intf); struct usb_host_interface *idesc; struct usb_endpoint_descriptor *ep = NULL; struct usb_endpoint_descriptor *ep_in = NULL; struct usb_endpoint_descriptor *ep_out = NULL; struct mceusb_dev *ir = NULL; int pipe, maxp, i, res; char buf[63], name[128] = ""; enum mceusb_model_type model = id->driver_info; bool is_gen3; bool is_microsoft_gen1; bool tx_mask_normal; int ir_intfnum; dev_dbg(&intf->dev, "%s called", __func__); idesc = intf->cur_altsetting; is_gen3 = mceusb_model[model].mce_gen3; is_microsoft_gen1 = mceusb_model[model].mce_gen1; tx_mask_normal = mceusb_model[model].tx_mask_normal; ir_intfnum = mceusb_model[model].ir_intfnum; /* There are multi-function devices with non-IR interfaces */ if (idesc->desc.bInterfaceNumber != ir_intfnum) return -ENODEV; /* step through the endpoints to find first bulk in and out endpoint */ for (i = 0; i < idesc->desc.bNumEndpoints; ++i) { ep = &idesc->endpoint[i].desc; if (ep_in == NULL) { if (usb_endpoint_is_bulk_in(ep)) { ep_in = ep; dev_dbg(&intf->dev, "acceptable bulk inbound endpoint found\n"); } else if (usb_endpoint_is_int_in(ep)) { ep_in = ep; ep_in->bInterval = 1; dev_dbg(&intf->dev, "acceptable interrupt inbound endpoint found\n"); } } if (ep_out == NULL) { if (usb_endpoint_is_bulk_out(ep)) { ep_out = ep; dev_dbg(&intf->dev, "acceptable bulk outbound endpoint found\n"); } else if (usb_endpoint_is_int_out(ep)) { ep_out = ep; ep_out->bInterval = 1; dev_dbg(&intf->dev, "acceptable interrupt outbound endpoint found\n"); } } } if (!ep_in || !ep_out) { dev_dbg(&intf->dev, "required endpoints not found\n"); return -ENODEV; } if (usb_endpoint_xfer_int(ep_in)) pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); else pipe = usb_rcvbulkpipe(dev, ep_in->bEndpointAddress); maxp = usb_maxpacket(dev, pipe); ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); if (!ir) goto mem_alloc_fail; ir->pipe_in = pipe; ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_KERNEL, &ir->dma_in); if (!ir->buf_in) goto buf_in_alloc_fail; ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); if (!ir->urb_in) goto urb_in_alloc_fail; ir->usbintf = intf; ir->usbdev = usb_get_dev(dev); ir->dev = &intf->dev; ir->len_in = maxp; ir->flags.microsoft_gen1 = is_microsoft_gen1; ir->flags.tx_mask_normal = tx_mask_normal; ir->flags.no_tx = mceusb_model[model].no_tx; ir->flags.rx2 = mceusb_model[model].rx2; ir->model = model; /* Saving usb interface data for use by the transmitter routine */ ir->usb_ep_out = ep_out; if (usb_endpoint_xfer_int(ep_out)) ir->pipe_out = usb_sndintpipe(ir->usbdev, ep_out->bEndpointAddress); else ir->pipe_out = usb_sndbulkpipe(ir->usbdev, ep_out->bEndpointAddress); if (dev->descriptor.iManufacturer && usb_string(dev, dev->descriptor.iManufacturer, buf, sizeof(buf)) > 0) strscpy(name, buf, sizeof(name)); if (dev->descriptor.iProduct && usb_string(dev, dev->descriptor.iProduct, buf, sizeof(buf)) > 0) snprintf(name + strlen(name), sizeof(name) - strlen(name), " %s", buf); /* * Initialize async USB error handler before registering * or activating any mceusb RX and TX functions */ INIT_WORK(&ir->kevent, mceusb_deferred_kevent); ir->rc = mceusb_init_rc_dev(ir); if (!ir->rc) goto rc_dev_fail; /* wire up inbound data handler */ if (usb_endpoint_xfer_int(ep_in)) usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, mceusb_dev_recv, ir, ep_in->bInterval); else usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp, mceusb_dev_recv, ir); ir->urb_in->transfer_dma = ir->dma_in; ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; /* flush buffers on the device */ dev_dbg(&intf->dev, "Flushing receive buffers"); res = usb_submit_urb(ir->urb_in, GFP_KERNEL); if (res) dev_err(&intf->dev, "failed to flush buffers: %d", res); /* figure out which firmware/emulator version this hardware has */ mceusb_get_emulator_version(ir); /* initialize device */ if (ir->flags.microsoft_gen1) mceusb_gen1_init(ir); else if (!is_gen3) mceusb_gen2_init(ir); mceusb_get_parameters(ir); mceusb_flash_led(ir); if (!ir->flags.no_tx) mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); usb_set_intfdata(intf, ir); /* enable wake via this device */ device_set_wakeup_capable(ir->dev, true); device_set_wakeup_enable(ir->dev, true); dev_info(&intf->dev, "Registered %s with mce emulator interface version %x", name, ir->emver); dev_info(&intf->dev, "%x tx ports (0x%x cabled) and %x rx sensors (0x%x active)", ir->num_txports, ir->txports_cabled, ir->num_rxports, ir->rxports_active); return 0; /* Error-handling path */ rc_dev_fail: cancel_work_sync(&ir->kevent); usb_put_dev(ir->usbdev); usb_kill_urb(ir->urb_in); usb_free_urb(ir->urb_in); urb_in_alloc_fail: usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in); buf_in_alloc_fail: kfree(ir); mem_alloc_fail: dev_err(&intf->dev, "%s: device setup failed!", __func__); return -ENOMEM; } static void mceusb_dev_disconnect(struct usb_interface *intf) { struct usb_device *dev = interface_to_usbdev(intf); struct mceusb_dev *ir = usb_get_intfdata(intf); dev_dbg(&intf->dev, "%s called", __func__); usb_set_intfdata(intf, NULL); if (!ir) return; ir->usbdev = NULL; cancel_work_sync(&ir->kevent); rc_unregister_device(ir->rc); usb_kill_urb(ir->urb_in); usb_free_urb(ir->urb_in); usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in); usb_put_dev(dev); kfree(ir); } static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message) { struct mceusb_dev *ir = usb_get_intfdata(intf); dev_info(ir->dev, "suspend"); usb_kill_urb(ir->urb_in); return 0; } static int mceusb_dev_resume(struct usb_interface *intf) { struct mceusb_dev *ir = usb_get_intfdata(intf); dev_info(ir->dev, "resume"); if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) return -EIO; return 0; } static struct usb_driver mceusb_dev_driver = { .name = DRIVER_NAME, .probe = mceusb_dev_probe, .disconnect = mceusb_dev_disconnect, .suspend = mceusb_dev_suspend, .resume = mceusb_dev_resume, .reset_resume = mceusb_dev_resume, .id_table = mceusb_dev_table }; module_usb_driver(mceusb_dev_driver); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
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