| /* |
| * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers |
| * |
| * Copyright (c) 2010 by 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. |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include <linux/device.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/usb.h> |
| #include <linux/usb/input.h> |
| #include <media/rc-core.h> |
| |
| #define DRIVER_VERSION "1.91" |
| #define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>" |
| #define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \ |
| "device driver" |
| #define DRIVER_NAME "mceusb" |
| |
| #define USB_BUFLEN 32 /* USB reception buffer length */ |
| #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_CMDBUF_SIZE 384 /* MCE Command buffer length */ |
| #define MCE_TIME_UNIT 50 /* Approx 50us resolution */ |
| #define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */ |
| #define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */ |
| #define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */ |
| #define MCE_IRDATA_TRAILER 0x80 /* End of IR data */ |
| #define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */ |
| #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 thru 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 */ |
| |
| /* module parameters */ |
| #ifdef CONFIG_USB_DEBUG |
| static int debug = 1; |
| #else |
| static int debug; |
| #endif |
| |
| #define mce_dbg(dev, fmt, ...) \ |
| do { \ |
| if (debug) \ |
| dev_info(dev, fmt, ## __VA_ARGS__); \ |
| } while (0) |
| |
| /* general constants */ |
| #define SEND_FLAG_IN_PROGRESS 1 |
| #define SEND_FLAG_COMPLETE 2 |
| #define RECV_FLAG_IN_PROGRESS 3 |
| #define RECV_FLAG_COMPLETE 4 |
| |
| #define MCEUSB_RX 1 |
| #define MCEUSB_TX 2 |
| |
| #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 |
| |
| enum mceusb_model_type { |
| MCE_GEN2 = 0, /* Most boards */ |
| MCE_GEN1, |
| MCE_GEN3, |
| MCE_GEN2_TX_INV, |
| POLARIS_EVK, |
| CX_HYBRID_TV, |
| MULTIFUNCTION, |
| TIVO_KIT, |
| MCE_GEN2_NO_TX, |
| }; |
| |
| struct mceusb_model { |
| u32 mce_gen1:1; |
| u32 mce_gen2:1; |
| u32 mce_gen3:1; |
| u32 tx_mask_normal:1; |
| u32 no_tx:1; |
| |
| 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, |
| }, |
| [MCE_GEN2] = { |
| .mce_gen2 = 1, |
| }, |
| [MCE_GEN2_NO_TX] = { |
| .mce_gen2 = 1, |
| .no_tx = 1, |
| }, |
| [MCE_GEN2_TX_INV] = { |
| .mce_gen2 = 1, |
| .tx_mask_normal = 1, |
| }, |
| [MCE_GEN3] = { |
| .mce_gen3 = 1, |
| .tx_mask_normal = 1, |
| }, |
| [POLARIS_EVK] = { |
| /* |
| * In fact, the EVK is shipped without |
| * remotes, but we should have something handy, |
| * to allow testing it |
| */ |
| .rc_map = RC_MAP_HAUPPAUGE, |
| .name = "Conexant Hybrid TV (cx231xx) MCE IR", |
| }, |
| [CX_HYBRID_TV] = { |
| .no_tx = 1, /* tx isn't wired up at all */ |
| .name = "Conexant Hybrid TV (cx231xx) MCE IR", |
| }, |
| [MULTIFUNCTION] = { |
| .mce_gen2 = 1, |
| .ir_intfnum = 2, |
| }, |
| [TIVO_KIT] = { |
| .mce_gen2 = 1, |
| .rc_map = RC_MAP_TIVO, |
| }, |
| }; |
| |
| static 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) }, |
| /* 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 }, |
| /* 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 }, |
| /* 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 }, |
| /* 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) }, |
| /* Fintek eHome Infrared Transceiver (HP branded) */ |
| { USB_DEVICE(VENDOR_FINTEK, 0x5168) }, |
| /* 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 }, |
| /* 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 learning_enabled; |
| |
| /* core device bits */ |
| struct device *dev; |
| |
| /* usb */ |
| struct usb_device *usbdev; |
| struct urb *urb_in; |
| struct usb_endpoint_descriptor *usb_ep_in; |
| struct usb_endpoint_descriptor *usb_ep_out; |
| |
| /* buffers and dma */ |
| unsigned char *buf_in; |
| unsigned int len_in; |
| dma_addr_t dma_in; |
| dma_addr_t dma_out; |
| |
| 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; |
| } flags; |
| |
| /* transmit support */ |
| int send_flags; |
| u32 carrier; |
| unsigned char tx_mask; |
| |
| char name[128]; |
| char phys[64]; |
| enum mceusb_model_type model; |
| }; |
| |
| /* 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_WAKEVERSION[] = {MCE_CMD_PORT_SYS, MCE_CMD_GETWAKEVERSION}; |
| 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_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_cmdsize(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_EQWAKEVERSION: |
| datasize = 4; |
| break; |
| case MCE_CMD_G_REVISION: |
| datasize = 2; |
| break; |
| case MCE_RSP_EQWAKESUPPORT: |
| datasize = 1; |
| break; |
| } |
| case MCE_CMD_PORT_IR: |
| switch (subcmd) { |
| case MCE_CMD_UNKNOWN: |
| case MCE_RSP_EQIRCFS: |
| case MCE_RSP_EQIRTIMEOUT: |
| case MCE_RSP_EQIRRXCFCNT: |
| 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, char *buf, |
| int offset, int len, bool out) |
| { |
| char codes[USB_BUFLEN * 3 + 1]; |
| char inout[9]; |
| u8 cmd, subcmd, data1, data2, data3, data4, data5; |
| struct device *dev = ir->dev; |
| int i, start, skip = 0; |
| |
| if (!debug) |
| return; |
| |
| /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ |
| if (ir->flags.microsoft_gen1 && !out && !offset) |
| skip = 2; |
| |
| if (len <= skip) |
| return; |
| |
| for (i = 0; i < len && i < USB_BUFLEN; i++) |
| snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff); |
| |
| dev_info(dev, "%sx data: %s(length=%d)\n", |
| (out ? "t" : "r"), codes, len); |
| |
| if (out) |
| strcpy(inout, "Request\0"); |
| else |
| strcpy(inout, "Got\0"); |
| |
| start = offset + skip; |
| cmd = buf[start] & 0xff; |
| subcmd = buf[start + 1] & 0xff; |
| data1 = buf[start + 2] & 0xff; |
| data2 = buf[start + 3] & 0xff; |
| data3 = buf[start + 4] & 0xff; |
| data4 = buf[start + 5] & 0xff; |
| data5 = buf[start + 6] & 0xff; |
| |
| switch (cmd) { |
| case MCE_CMD_NULL: |
| if ((subcmd == MCE_CMD_PORT_SYS) && |
| (data1 == MCE_CMD_RESUME)) |
| dev_info(dev, "Device resume requested\n"); |
| else |
| dev_info(dev, "Unknown command 0x%02x 0x%02x\n", |
| cmd, subcmd); |
| break; |
| case MCE_CMD_PORT_SYS: |
| switch (subcmd) { |
| case MCE_RSP_EQEMVER: |
| if (!out) |
| dev_info(dev, "Emulator interface version %x\n", |
| data1); |
| break; |
| case MCE_CMD_G_REVISION: |
| if (len == 2) |
| dev_info(dev, "Get hw/sw rev?\n"); |
| else |
| dev_info(dev, "hw/sw rev 0x%02x 0x%02x " |
| "0x%02x 0x%02x\n", data1, data2, |
| buf[start + 4], buf[start + 5]); |
| break; |
| case MCE_CMD_RESUME: |
| dev_info(dev, "Device resume requested\n"); |
| break; |
| case MCE_RSP_CMD_ILLEGAL: |
| dev_info(dev, "Illegal PORT_SYS command\n"); |
| break; |
| case MCE_RSP_EQWAKEVERSION: |
| if (!out) |
| dev_info(dev, "Wake version, proto: 0x%02x, " |
| "payload: 0x%02x, address: 0x%02x, " |
| "version: 0x%02x\n", |
| data1, data2, data3, data4); |
| break; |
| case MCE_RSP_GETPORTSTATUS: |
| if (!out) |
| /* We use data1 + 1 here, to match hw labels */ |
| dev_info(dev, "TX port %d: blaster is%s connected\n", |
| data1 + 1, data4 ? " not" : ""); |
| break; |
| default: |
| dev_info(dev, "Unknown command 0x%02x 0x%02x\n", |
| cmd, subcmd); |
| break; |
| } |
| break; |
| case MCE_CMD_PORT_IR: |
| switch (subcmd) { |
| case MCE_CMD_SIG_END: |
| dev_info(dev, "End of signal\n"); |
| break; |
| case MCE_CMD_PING: |
| dev_info(dev, "Ping\n"); |
| break; |
| case MCE_CMD_UNKNOWN: |
| dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n", |
| data1, data2); |
| break; |
| case MCE_CMD_SETIRCFS: |
| dev_info(dev, "%s carrier mode and freq of " |
| "0x%02x 0x%02x\n", inout, data1, data2); |
| break; |
| case MCE_CMD_GETIRCFS: |
| dev_info(dev, "Get carrier mode and freq\n"); |
| break; |
| case MCE_RSP_EQIRTXPORTS: |
| dev_info(dev, "%s transmit blaster mask of 0x%02x\n", |
| inout, data1); |
| break; |
| case MCE_RSP_EQIRTIMEOUT: |
| /* value is in units of 50us, so x*50/1000 ms */ |
| dev_info(dev, "%s receive timeout of %d ms\n", |
| inout, |
| ((data1 << 8) | data2) * MCE_TIME_UNIT / 1000); |
| break; |
| case MCE_CMD_GETIRTIMEOUT: |
| dev_info(dev, "Get receive timeout\n"); |
| break; |
| case MCE_CMD_GETIRTXPORTS: |
| dev_info(dev, "Get transmit blaster mask\n"); |
| break; |
| case MCE_RSP_EQIRRXPORTEN: |
| dev_info(dev, "%s %s-range receive sensor in use\n", |
| inout, data1 == 0x02 ? "short" : "long"); |
| break; |
| case MCE_CMD_GETIRRXPORTEN: |
| /* aka MCE_RSP_EQIRRXCFCNT */ |
| if (out) |
| dev_info(dev, "Get receive sensor\n"); |
| else if (ir->learning_enabled) |
| dev_info(dev, "RX pulse count: %d\n", |
| ((data1 << 8) | data2)); |
| break; |
| case MCE_RSP_EQIRNUMPORTS: |
| if (out) |
| break; |
| dev_info(dev, "Num TX ports: %x, num RX ports: %x\n", |
| data1, data2); |
| break; |
| case MCE_RSP_CMD_ILLEGAL: |
| dev_info(dev, "Illegal PORT_IR command\n"); |
| break; |
| default: |
| dev_info(dev, "Unknown command 0x%02x 0x%02x\n", |
| cmd, subcmd); |
| break; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| if (cmd == MCE_IRDATA_TRAILER) |
| dev_info(dev, "End of raw IR data\n"); |
| else if ((cmd != MCE_CMD_PORT_IR) && |
| ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA)) |
| dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem); |
| } |
| |
| static void mce_async_callback(struct urb *urb, struct pt_regs *regs) |
| { |
| struct mceusb_dev *ir; |
| int len; |
| |
| if (!urb) |
| return; |
| |
| ir = urb->context; |
| if (ir) { |
| len = urb->actual_length; |
| |
| mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true); |
| } |
| |
| /* the transfer buffer and urb were allocated in mce_request_packet */ |
| kfree(urb->transfer_buffer); |
| usb_free_urb(urb); |
| } |
| |
| /* request incoming or send outgoing usb packet - used to initialize remote */ |
| static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data, |
| int size, int urb_type) |
| { |
| int res, pipe; |
| struct urb *async_urb; |
| struct device *dev = ir->dev; |
| unsigned char *async_buf; |
| |
| if (urb_type == MCEUSB_TX) { |
| async_urb = usb_alloc_urb(0, GFP_KERNEL); |
| if (unlikely(!async_urb)) { |
| dev_err(dev, "Error, couldn't allocate urb!\n"); |
| return; |
| } |
| |
| async_buf = kzalloc(size, GFP_KERNEL); |
| if (!async_buf) { |
| dev_err(dev, "Error, couldn't allocate buf!\n"); |
| usb_free_urb(async_urb); |
| return; |
| } |
| |
| /* outbound data */ |
| pipe = usb_sndintpipe(ir->usbdev, |
| ir->usb_ep_out->bEndpointAddress); |
| usb_fill_int_urb(async_urb, ir->usbdev, pipe, |
| async_buf, size, (usb_complete_t)mce_async_callback, |
| ir, ir->usb_ep_out->bInterval); |
| memcpy(async_buf, data, size); |
| |
| } else if (urb_type == MCEUSB_RX) { |
| /* standard request */ |
| async_urb = ir->urb_in; |
| ir->send_flags = RECV_FLAG_IN_PROGRESS; |
| |
| } else { |
| dev_err(dev, "Error! Unknown urb type %d\n", urb_type); |
| return; |
| } |
| |
| mce_dbg(dev, "receive request called (size=%#x)\n", size); |
| |
| async_urb->transfer_buffer_length = size; |
| async_urb->dev = ir->usbdev; |
| |
| res = usb_submit_urb(async_urb, GFP_ATOMIC); |
| if (res) { |
| mce_dbg(dev, "receive request FAILED! (res=%d)\n", res); |
| return; |
| } |
| mce_dbg(dev, "receive request complete (res=%d)\n", res); |
| } |
| |
| static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size) |
| { |
| mce_request_packet(ir, data, size, MCEUSB_TX); |
| msleep(10); |
| } |
| |
| static void mce_flush_rx_buffer(struct mceusb_dev *ir, int size) |
| { |
| mce_request_packet(ir, NULL, size, MCEUSB_RX); |
| } |
| |
| /* Send data out the IR blaster port(s) */ |
| static int mceusb_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned count) |
| { |
| struct mceusb_dev *ir = dev->priv; |
| int i, ret = 0; |
| int cmdcount = 0; |
| unsigned char *cmdbuf; /* MCE command buffer */ |
| long signal_duration = 0; /* Singnal length in us */ |
| struct timeval start_time, end_time; |
| |
| do_gettimeofday(&start_time); |
| |
| cmdbuf = kzalloc(sizeof(unsigned) * MCE_CMDBUF_SIZE, GFP_KERNEL); |
| if (!cmdbuf) |
| return -ENOMEM; |
| |
| /* MCE tx init header */ |
| cmdbuf[cmdcount++] = MCE_CMD_PORT_IR; |
| cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS; |
| cmdbuf[cmdcount++] = ir->tx_mask; |
| |
| /* Generate mce packet data */ |
| for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { |
| signal_duration += txbuf[i]; |
| txbuf[i] = txbuf[i] / MCE_TIME_UNIT; |
| |
| do { /* loop to support long pulses/spaces > 127*50us=6.35ms */ |
| |
| /* Insert mce packet header every 4th entry */ |
| if ((cmdcount < MCE_CMDBUF_SIZE) && |
| (cmdcount - MCE_TX_HEADER_LENGTH) % |
| MCE_CODE_LENGTH == 0) |
| cmdbuf[cmdcount++] = MCE_IRDATA_HEADER; |
| |
| /* Insert mce packet data */ |
| if (cmdcount < MCE_CMDBUF_SIZE) |
| cmdbuf[cmdcount++] = |
| (txbuf[i] < MCE_PULSE_BIT ? |
| txbuf[i] : MCE_MAX_PULSE_LENGTH) | |
| (i & 1 ? 0x00 : MCE_PULSE_BIT); |
| else { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) && |
| (txbuf[i] -= MCE_MAX_PULSE_LENGTH)); |
| } |
| |
| /* Fix packet length in last header */ |
| cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] = |
| MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) % |
| MCE_CODE_LENGTH - 1; |
| |
| /* Check if we have room for the empty packet at the end */ |
| if (cmdcount >= MCE_CMDBUF_SIZE) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| /* All mce commands end with an empty packet (0x80) */ |
| cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER; |
| |
| /* Transmit the command to the mce device */ |
| mce_async_out(ir, cmdbuf, cmdcount); |
| |
| /* |
| * The lircd gap calculation expects the write function to |
| * wait the time it takes for the ircommand to be sent before |
| * it returns. |
| */ |
| do_gettimeofday(&end_time); |
| signal_duration -= (end_time.tv_usec - start_time.tv_usec) + |
| (end_time.tv_sec - start_time.tv_sec) * 1000000; |
| |
| /* delay with the closest number of ticks */ |
| set_current_state(TASK_INTERRUPTIBLE); |
| schedule_timeout(usecs_to_jiffies(signal_duration)); |
| |
| out: |
| kfree(cmdbuf); |
| return ret ? ret : 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; |
| |
| 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; |
| mce_dbg(ir->dev, "%s: disabling carrier " |
| "modulation\n", __func__); |
| mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); |
| return carrier; |
| } |
| |
| for (prescaler = 0; prescaler < 4; ++prescaler) { |
| divisor = (clk >> (2 * prescaler)) / carrier; |
| if (divisor <= 0xff) { |
| ir->carrier = carrier; |
| cmdbuf[2] = prescaler; |
| cmdbuf[3] = divisor; |
| mce_dbg(ir->dev, "%s: requesting %u HZ " |
| "carrier\n", __func__, carrier); |
| |
| /* Transmit new carrier to mce device */ |
| mce_async_out(ir, cmdbuf, sizeof(cmdbuf)); |
| return carrier; |
| } |
| } |
| |
| return -EINVAL; |
| |
| } |
| |
| return carrier; |
| } |
| |
| /* |
| * 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, int index) |
| { |
| u8 hi = ir->buf_in[index + 1] & 0xff; |
| u8 lo = ir->buf_in[index + 2] & 0xff; |
| |
| switch (ir->buf_in[index]) { |
| /* 2-byte return value commands */ |
| case MCE_RSP_EQIRTIMEOUT: |
| ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT); |
| break; |
| |
| /* 1-byte return value commands */ |
| case MCE_RSP_EQIRTXPORTS: |
| ir->tx_mask = hi; |
| break; |
| case MCE_RSP_EQIRRXPORTEN: |
| ir->learning_enabled = ((hi & 0x02) == 0x02); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) |
| { |
| DEFINE_IR_RAW_EVENT(rawir); |
| 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_cmdsize(ir->cmd, ir->buf_in[i]); |
| mceusb_dev_printdata(ir, ir->buf_in, i - 1, |
| ir->rem + 2, false); |
| mceusb_handle_command(ir, i); |
| ir->parser_state = CMD_DATA; |
| break; |
| case PARSE_IRDATA: |
| ir->rem--; |
| init_ir_raw_event(&rawir); |
| rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); |
| rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK) |
| * US_TO_NS(MCE_TIME_UNIT); |
| |
| mce_dbg(ir->dev, "Storing %s with duration %d\n", |
| rawir.pulse ? "pulse" : "space", |
| rawir.duration); |
| |
| ir_raw_event_store_with_filter(ir->rc, &rawir); |
| break; |
| case CMD_DATA: |
| ir->rem--; |
| break; |
| case CMD_HEADER: |
| /* decode mce packets of the form (84),AA,BB,CC,DD */ |
| /* IR data packets can span USB messages - rem */ |
| ir->cmd = ir->buf_in[i]; |
| if ((ir->cmd == MCE_CMD_PORT_IR) || |
| ((ir->cmd & MCE_PORT_MASK) != |
| MCE_COMMAND_IRDATA)) { |
| ir->parser_state = SUBCMD; |
| continue; |
| } |
| ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK); |
| mceusb_dev_printdata(ir, ir->buf_in, |
| i, ir->rem + 1, false); |
| if (ir->rem) |
| ir->parser_state = PARSE_IRDATA; |
| else |
| ir_raw_event_reset(ir->rc); |
| break; |
| } |
| |
| if (ir->parser_state != CMD_HEADER && !ir->rem) |
| ir->parser_state = CMD_HEADER; |
| } |
| mce_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n"); |
| ir_raw_event_handle(ir->rc); |
| } |
| |
| static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs) |
| { |
| struct mceusb_dev *ir; |
| int buf_len; |
| |
| if (!urb) |
| return; |
| |
| ir = urb->context; |
| if (!ir) { |
| usb_unlink_urb(urb); |
| return; |
| } |
| |
| buf_len = urb->actual_length; |
| |
| if (ir->send_flags == RECV_FLAG_IN_PROGRESS) { |
| ir->send_flags = SEND_FLAG_COMPLETE; |
| mce_dbg(ir->dev, "setup answer received %d bytes\n", |
| buf_len); |
| } |
| |
| switch (urb->status) { |
| /* success */ |
| case 0: |
| mceusb_process_ir_data(ir, buf_len); |
| break; |
| |
| case -ECONNRESET: |
| case -ENOENT: |
| case -ESHUTDOWN: |
| usb_unlink_urb(urb); |
| return; |
| |
| case -EPIPE: |
| default: |
| mce_dbg(ir->dev, "Error: urb status = %d\n", urb->status); |
| break; |
| } |
| |
| usb_submit_urb(urb, GFP_ATOMIC); |
| } |
| |
| static void mceusb_gen1_init(struct mceusb_dev *ir) |
| { |
| int ret; |
| struct device *dev = ir->dev; |
| char *data; |
| |
| data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL); |
| if (!data) { |
| dev_err(dev, "%s: memory allocation failed!\n", __func__); |
| return; |
| } |
| |
| /* |
| * 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(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0), |
| USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0, |
| data, USB_CTRL_MSG_SZ, HZ * 3); |
| mce_dbg(dev, "%s - ret = %d\n", __func__, ret); |
| mce_dbg(dev, "%s - data[0] = %d, data[1] = %d\n", |
| __func__, data[0], data[1]); |
| |
| /* set feature: bit rate 38400 bps */ |
| ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), |
| USB_REQ_SET_FEATURE, USB_TYPE_VENDOR, |
| 0xc04e, 0x0000, NULL, 0, HZ * 3); |
| |
| mce_dbg(dev, "%s - ret = %d\n", __func__, ret); |
| |
| /* bRequest 4: set char length to 8 bits */ |
| ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), |
| 4, USB_TYPE_VENDOR, |
| 0x0808, 0x0000, NULL, 0, HZ * 3); |
| mce_dbg(dev, "%s - retB = %d\n", __func__, ret); |
| |
| /* bRequest 2: set handshaking to use DTR/DSR */ |
| ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0), |
| 2, USB_TYPE_VENDOR, |
| 0x0000, 0x0100, NULL, 0, HZ * 3); |
| mce_dbg(dev, "%s - retC = %d\n", __func__, ret); |
| |
| /* device resume */ |
| mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); |
| |
| /* get hw/sw revision? */ |
| mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); |
| |
| kfree(data); |
| }; |
| |
| static void mceusb_gen2_init(struct mceusb_dev *ir) |
| { |
| /* device resume */ |
| mce_async_out(ir, DEVICE_RESUME, sizeof(DEVICE_RESUME)); |
| |
| /* get hw/sw revision? */ |
| mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION)); |
| |
| /* get wake version (protocol, key, address) */ |
| mce_async_out(ir, GET_WAKEVERSION, sizeof(GET_WAKEVERSION)); |
| |
| /* unknown what this one actually returns... */ |
| mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2)); |
| } |
| |
| static void mceusb_get_parameters(struct mceusb_dev *ir) |
| { |
| /* get the carrier and frequency */ |
| mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ)); |
| |
| if (!ir->flags.no_tx) |
| /* get the transmitter bitmask */ |
| mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK)); |
| |
| /* get receiver timeout value */ |
| mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT)); |
| |
| /* get receiver sensor setting */ |
| mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR)); |
| } |
| |
| static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir) |
| { |
| struct device *dev = ir->dev; |
| struct rc_dev *rc; |
| int ret; |
| |
| rc = rc_allocate_device(); |
| if (!rc) { |
| dev_err(dev, "remote dev allocation failed\n"); |
| goto out; |
| } |
| |
| snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)", |
| mceusb_model[ir->model].name ? |
| mceusb_model[ir->model].name : |
| "Media Center Ed. eHome Infrared Remote Transceiver", |
| le16_to_cpu(ir->usbdev->descriptor.idVendor), |
| le16_to_cpu(ir->usbdev->descriptor.idProduct)); |
| |
| usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); |
| |
| rc->input_name = ir->name; |
| rc->input_phys = ir->phys; |
| usb_to_input_id(ir->usbdev, &rc->input_id); |
| rc->dev.parent = dev; |
| rc->priv = ir; |
| rc->driver_type = RC_DRIVER_IR_RAW; |
| rc->allowed_protos = RC_TYPE_ALL; |
| rc->timeout = MS_TO_NS(100); |
| 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; |
| } |
| rc->driver_name = DRIVER_NAME; |
| rc->map_name = mceusb_model[ir->model].rc_map ? |
| mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE; |
| |
| ret = rc_register_device(rc); |
| if (ret < 0) { |
| dev_err(dev, "remote dev registration failed\n"); |
| goto out; |
| } |
| |
| return rc; |
| |
| out: |
| rc_free_device(rc); |
| return NULL; |
| } |
| |
| static int __devinit 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; |
| 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; |
| |
| mce_dbg(&intf->dev, "%s called\n", __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) |
| && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
| == USB_DIR_IN) |
| && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
| == USB_ENDPOINT_XFER_BULK) |
| || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
| == USB_ENDPOINT_XFER_INT))) { |
| |
| ep_in = ep; |
| ep_in->bmAttributes = USB_ENDPOINT_XFER_INT; |
| ep_in->bInterval = 1; |
| mce_dbg(&intf->dev, "acceptable inbound endpoint " |
| "found\n"); |
| } |
| |
| if ((ep_out == NULL) |
| && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) |
| == USB_DIR_OUT) |
| && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
| == USB_ENDPOINT_XFER_BULK) |
| || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) |
| == USB_ENDPOINT_XFER_INT))) { |
| |
| ep_out = ep; |
| ep_out->bmAttributes = USB_ENDPOINT_XFER_INT; |
| ep_out->bInterval = 1; |
| mce_dbg(&intf->dev, "acceptable outbound endpoint " |
| "found\n"); |
| } |
| } |
| if (ep_in == NULL) { |
| mce_dbg(&intf->dev, "inbound and/or endpoint not found\n"); |
| return -ENODEV; |
| } |
| |
| pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); |
| maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); |
| |
| ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL); |
| if (!ir) |
| goto mem_alloc_fail; |
| |
| ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &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->usbdev = 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->model = model; |
| |
| /* Saving usb interface data for use by the transmitter routine */ |
| ir->usb_ep_in = ep_in; |
| ir->usb_ep_out = ep_out; |
| |
| if (dev->descriptor.iManufacturer |
| && usb_string(dev, dev->descriptor.iManufacturer, |
| buf, sizeof(buf)) > 0) |
| strlcpy(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); |
| |
| ir->rc = mceusb_init_rc_dev(ir); |
| if (!ir->rc) |
| goto rc_dev_fail; |
| |
| /* wire up inbound data handler */ |
| usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, |
| maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval); |
| ir->urb_in->transfer_dma = ir->dma_in; |
| ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| |
| /* flush buffers on the device */ |
| mce_dbg(&intf->dev, "Flushing receive buffers\n"); |
| mce_flush_rx_buffer(ir, maxp); |
| |
| /* initialize device */ |
| if (ir->flags.microsoft_gen1) |
| mceusb_gen1_init(ir); |
| else if (!is_gen3) |
| mceusb_gen2_init(ir); |
| |
| mceusb_get_parameters(ir); |
| |
| if (!ir->flags.no_tx) |
| mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK); |
| |
| usb_set_intfdata(intf, ir); |
| |
| dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name, |
| dev->bus->busnum, dev->devnum); |
| |
| return 0; |
| |
| /* Error-handling path */ |
| rc_dev_fail: |
| 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!\n", __func__); |
| |
| return -ENOMEM; |
| } |
| |
| |
| static void __devexit mceusb_dev_disconnect(struct usb_interface *intf) |
| { |
| struct usb_device *dev = interface_to_usbdev(intf); |
| struct mceusb_dev *ir = usb_get_intfdata(intf); |
| |
| usb_set_intfdata(intf, NULL); |
| |
| if (!ir) |
| return; |
| |
| ir->usbdev = NULL; |
| 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); |
| |
| 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\n"); |
| 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\n"); |
| 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 |
| }; |
| |
| static int __init mceusb_dev_init(void) |
| { |
| int ret; |
| |
| ret = usb_register(&mceusb_dev_driver); |
| if (ret < 0) |
| printk(KERN_ERR DRIVER_NAME |
| ": usb register failed, result = %d\n", ret); |
| |
| return ret; |
| } |
| |
| static void __exit mceusb_dev_exit(void) |
| { |
| usb_deregister(&mceusb_dev_driver); |
| } |
| |
| module_init(mceusb_dev_init); |
| module_exit(mceusb_dev_exit); |
| |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_LICENSE("GPL"); |
| MODULE_DEVICE_TABLE(usb, mceusb_dev_table); |
| |
| module_param(debug, bool, S_IRUGO | S_IWUSR); |
| MODULE_PARM_DESC(debug, "Debug enabled or not"); |