1905 lines
54 KiB
C
1905 lines
54 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
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*
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* Copyright (c) 2010-2011, Jarod Wilson <jarod@redhat.com>
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*
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* Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan
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* Conti, Martin Blatter and Daniel Melander, the latter of which was
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* in turn also based on the lirc_atiusb driver by Paul Miller. The
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* two mce drivers were merged into one by Jarod Wilson, with transmit
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* support for the 1st-gen device added primarily by Patrick Calhoun,
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* with a bit of tweaks by Jarod. Debugging improvements and proper
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* support for what appears to be 3rd-gen hardware added by Jarod.
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* Initial port from lirc driver to ir-core drivery by Jarod, based
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* partially on a port to an earlier proposed IR infrastructure by
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* Jon Smirl, which included enhancements and simplifications to the
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* incoming IR buffer parsing routines.
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*
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* Updated in July of 2011 with the aid of Microsoft's official
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* remote/transceiver requirements and specification document, found at
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* download.microsoft.com, title
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* Windows-Media-Center-RC-IR-Collection-Green-Button-Specification-03-08-2011-V2.pdf
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*/
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/workqueue.h>
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#include <linux/usb.h>
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#include <linux/usb/input.h>
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#include <linux/pm_wakeup.h>
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#include <media/rc-core.h>
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#define DRIVER_VERSION "1.95"
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#define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>"
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#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
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"device driver"
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#define DRIVER_NAME "mceusb"
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#define USB_TX_TIMEOUT 1000 /* in milliseconds */
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#define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */
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#define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */
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/* MCE constants */
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#define MCE_IRBUF_SIZE 128 /* TX IR buffer length */
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#define MCE_TIME_UNIT 50 /* Approx 50us resolution */
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#define MCE_PACKET_SIZE 31 /* Max length of packet (with header) */
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#define MCE_IRDATA_HEADER (0x80 + MCE_PACKET_SIZE - 1)
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/* Actual format is 0x80 + num_bytes */
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#define MCE_IRDATA_TRAILER 0x80 /* End of IR data */
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#define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */
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#define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */
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#define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */
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#define MCE_PULSE_MASK 0x7f /* Pulse mask */
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#define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */
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/*
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* The interface between the host and the IR hardware is command-response
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* based. All commands and responses have a consistent format, where a lead
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* byte always identifies the type of data following it. The lead byte has
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* a port value in the 3 highest bits and a length value in the 5 lowest
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* bits.
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*
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* The length field is overloaded, with a value of 11111 indicating that the
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* following byte is a command or response code, and the length of the entire
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* message is determined by the code. If the length field is not 11111, then
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* it specifies the number of bytes of port data that follow.
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*/
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#define MCE_CMD 0x1f
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#define MCE_PORT_IR 0x4 /* (0x4 << 5) | MCE_CMD = 0x9f */
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#define MCE_PORT_SYS 0x7 /* (0x7 << 5) | MCE_CMD = 0xff */
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#define MCE_PORT_SER 0x6 /* 0xc0 through 0xdf flush & 0x1f bytes */
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#define MCE_PORT_MASK 0xe0 /* Mask out command bits */
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/* Command port headers */
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#define MCE_CMD_PORT_IR 0x9f /* IR-related cmd/rsp */
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#define MCE_CMD_PORT_SYS 0xff /* System (non-IR) device cmd/rsp */
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/* Commands that set device state (2-4 bytes in length) */
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#define MCE_CMD_RESET 0xfe /* Reset device, 2 bytes */
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#define MCE_CMD_RESUME 0xaa /* Resume device after error, 2 bytes */
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#define MCE_CMD_SETIRCFS 0x06 /* Set tx carrier, 4 bytes */
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#define MCE_CMD_SETIRTIMEOUT 0x0c /* Set timeout, 4 bytes */
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#define MCE_CMD_SETIRTXPORTS 0x08 /* Set tx ports, 3 bytes */
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#define MCE_CMD_SETIRRXPORTEN 0x14 /* Set rx ports, 3 bytes */
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#define MCE_CMD_FLASHLED 0x23 /* Flash receiver LED, 2 bytes */
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/* Commands that query device state (all 2 bytes, unless noted) */
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#define MCE_CMD_GETIRCFS 0x07 /* Get carrier */
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#define MCE_CMD_GETIRTIMEOUT 0x0d /* Get timeout */
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#define MCE_CMD_GETIRTXPORTS 0x13 /* Get tx ports */
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#define MCE_CMD_GETIRRXPORTEN 0x15 /* Get rx ports */
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#define MCE_CMD_GETPORTSTATUS 0x11 /* Get tx port status, 3 bytes */
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#define MCE_CMD_GETIRNUMPORTS 0x16 /* Get number of ports */
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#define MCE_CMD_GETWAKESOURCE 0x17 /* Get wake source */
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#define MCE_CMD_GETEMVER 0x22 /* Get emulator interface version */
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#define MCE_CMD_GETDEVDETAILS 0x21 /* Get device details (em ver2 only) */
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#define MCE_CMD_GETWAKESUPPORT 0x20 /* Get wake details (em ver2 only) */
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#define MCE_CMD_GETWAKEVERSION 0x18 /* Get wake pattern (em ver2 only) */
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/* Misc commands */
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#define MCE_CMD_NOP 0xff /* No operation */
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/* Responses to commands (non-error cases) */
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#define MCE_RSP_EQIRCFS 0x06 /* tx carrier, 4 bytes */
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#define MCE_RSP_EQIRTIMEOUT 0x0c /* rx timeout, 4 bytes */
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#define MCE_RSP_GETWAKESOURCE 0x17 /* wake source, 3 bytes */
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#define MCE_RSP_EQIRTXPORTS 0x08 /* tx port mask, 3 bytes */
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#define MCE_RSP_EQIRRXPORTEN 0x14 /* rx port mask, 3 bytes */
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#define MCE_RSP_GETPORTSTATUS 0x11 /* tx port status, 7 bytes */
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#define MCE_RSP_EQIRRXCFCNT 0x15 /* rx carrier count, 4 bytes */
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#define MCE_RSP_EQIRNUMPORTS 0x16 /* number of ports, 4 bytes */
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#define MCE_RSP_EQWAKESUPPORT 0x20 /* wake capabilities, 3 bytes */
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#define MCE_RSP_EQWAKEVERSION 0x18 /* wake pattern details, 6 bytes */
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#define MCE_RSP_EQDEVDETAILS 0x21 /* device capabilities, 3 bytes */
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#define MCE_RSP_EQEMVER 0x22 /* emulator interface ver, 3 bytes */
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#define MCE_RSP_FLASHLED 0x23 /* success flashing LED, 2 bytes */
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/* Responses to error cases, must send MCE_CMD_RESUME to clear them */
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#define MCE_RSP_CMD_ILLEGAL 0xfe /* illegal command for port, 2 bytes */
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#define MCE_RSP_TX_TIMEOUT 0x81 /* tx timed out, 2 bytes */
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/* Misc commands/responses not defined in the MCE remote/transceiver spec */
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#define MCE_CMD_SIG_END 0x01 /* End of signal */
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#define MCE_CMD_PING 0x03 /* Ping device */
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#define MCE_CMD_UNKNOWN 0x04 /* Unknown */
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#define MCE_CMD_UNKNOWN2 0x05 /* Unknown */
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#define MCE_CMD_UNKNOWN3 0x09 /* Unknown */
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#define MCE_CMD_UNKNOWN4 0x0a /* Unknown */
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#define MCE_CMD_G_REVISION 0x0b /* Get hw/sw revision */
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#define MCE_CMD_UNKNOWN5 0x0e /* Unknown */
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#define MCE_CMD_UNKNOWN6 0x0f /* Unknown */
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#define MCE_CMD_UNKNOWN8 0x19 /* Unknown */
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#define MCE_CMD_UNKNOWN9 0x1b /* Unknown */
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#define MCE_CMD_NULL 0x00 /* These show up various places... */
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/* if buf[i] & MCE_PORT_MASK == 0x80 and buf[i] != MCE_CMD_PORT_IR,
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* then we're looking at a raw IR data sample */
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#define MCE_COMMAND_IRDATA 0x80
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#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
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#define VENDOR_PHILIPS 0x0471
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#define VENDOR_SMK 0x0609
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#define VENDOR_TATUNG 0x1460
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#define VENDOR_GATEWAY 0x107b
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#define VENDOR_SHUTTLE 0x1308
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#define VENDOR_SHUTTLE2 0x051c
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#define VENDOR_MITSUMI 0x03ee
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#define VENDOR_TOPSEED 0x1784
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#define VENDOR_RICAVISION 0x179d
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#define VENDOR_ITRON 0x195d
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#define VENDOR_FIC 0x1509
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#define VENDOR_LG 0x043e
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#define VENDOR_MICROSOFT 0x045e
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#define VENDOR_FORMOSA 0x147a
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#define VENDOR_FINTEK 0x1934
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#define VENDOR_PINNACLE 0x2304
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#define VENDOR_ECS 0x1019
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#define VENDOR_WISTRON 0x0fb8
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#define VENDOR_COMPRO 0x185b
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#define VENDOR_NORTHSTAR 0x04eb
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#define VENDOR_REALTEK 0x0bda
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#define VENDOR_TIVO 0x105a
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#define VENDOR_CONEXANT 0x0572
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#define VENDOR_TWISTEDMELON 0x2596
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#define VENDOR_HAUPPAUGE 0x2040
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#define VENDOR_PCTV 0x2013
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#define VENDOR_ADAPTEC 0x03f3
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enum mceusb_model_type {
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MCE_GEN2 = 0, /* Most boards */
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MCE_GEN1,
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MCE_GEN3,
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MCE_GEN3_BROKEN_IRTIMEOUT,
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MCE_GEN2_TX_INV,
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MCE_GEN2_TX_INV_RX_GOOD,
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POLARIS_EVK,
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CX_HYBRID_TV,
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MULTIFUNCTION,
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TIVO_KIT,
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MCE_GEN2_NO_TX,
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HAUPPAUGE_CX_HYBRID_TV,
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EVROMEDIA_FULL_HYBRID_FULLHD,
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ASTROMETA_T2HYBRID,
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};
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struct mceusb_model {
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u32 mce_gen1:1;
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u32 mce_gen2:1;
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u32 mce_gen3:1;
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u32 tx_mask_normal:1;
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u32 no_tx:1;
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u32 broken_irtimeout:1;
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/*
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* 2nd IR receiver (short-range, wideband) for learning mode:
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* 0, absent 2nd receiver (rx2)
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* 1, rx2 present
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* 2, rx2 which under counts IR carrier cycles
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*/
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u32 rx2;
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int ir_intfnum;
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const char *rc_map; /* Allow specify a per-board map */
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const char *name; /* per-board name */
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};
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static const struct mceusb_model mceusb_model[] = {
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[MCE_GEN1] = {
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.mce_gen1 = 1,
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.tx_mask_normal = 1,
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.rx2 = 2,
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},
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[MCE_GEN2] = {
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.mce_gen2 = 1,
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.rx2 = 2,
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},
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[MCE_GEN2_NO_TX] = {
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.mce_gen2 = 1,
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.no_tx = 1,
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},
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[MCE_GEN2_TX_INV] = {
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.mce_gen2 = 1,
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.tx_mask_normal = 1,
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.rx2 = 1,
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},
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[MCE_GEN2_TX_INV_RX_GOOD] = {
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.mce_gen2 = 1,
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.tx_mask_normal = 1,
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.rx2 = 2,
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},
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[MCE_GEN3] = {
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.mce_gen3 = 1,
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.tx_mask_normal = 1,
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.rx2 = 2,
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},
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[MCE_GEN3_BROKEN_IRTIMEOUT] = {
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.mce_gen3 = 1,
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.tx_mask_normal = 1,
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.rx2 = 2,
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.broken_irtimeout = 1
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},
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[POLARIS_EVK] = {
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/*
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* In fact, the EVK is shipped without
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* remotes, but we should have something handy,
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* to allow testing it
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*/
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.name = "Conexant Hybrid TV (cx231xx) MCE IR",
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.rx2 = 2,
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},
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[CX_HYBRID_TV] = {
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.no_tx = 1, /* tx isn't wired up at all */
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.name = "Conexant Hybrid TV (cx231xx) MCE IR",
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},
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[HAUPPAUGE_CX_HYBRID_TV] = {
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.no_tx = 1, /* eeprom says it has no tx */
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.name = "Conexant Hybrid TV (cx231xx) MCE IR no TX",
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},
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[MULTIFUNCTION] = {
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.mce_gen2 = 1,
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.ir_intfnum = 2,
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.rx2 = 2,
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},
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[TIVO_KIT] = {
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.mce_gen2 = 1,
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.rc_map = RC_MAP_TIVO,
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.rx2 = 2,
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},
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[EVROMEDIA_FULL_HYBRID_FULLHD] = {
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.name = "Evromedia USB Full Hybrid Full HD",
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.no_tx = 1,
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.rc_map = RC_MAP_MSI_DIGIVOX_III,
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},
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[ASTROMETA_T2HYBRID] = {
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.name = "Astrometa T2Hybrid",
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.no_tx = 1,
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.rc_map = RC_MAP_ASTROMETA_T2HYBRID,
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}
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};
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static const struct usb_device_id mceusb_dev_table[] = {
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/* Original Microsoft MCE IR Transceiver (often HP-branded) */
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{ USB_DEVICE(VENDOR_MICROSOFT, 0x006d),
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.driver_info = MCE_GEN1 },
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/* Philips Infrared Transceiver - Sahara branded */
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{ USB_DEVICE(VENDOR_PHILIPS, 0x0608) },
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/* Philips Infrared Transceiver - HP branded */
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{ USB_DEVICE(VENDOR_PHILIPS, 0x060c),
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.driver_info = MCE_GEN2_TX_INV },
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/* Philips SRM5100 */
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{ USB_DEVICE(VENDOR_PHILIPS, 0x060d) },
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/* Philips Infrared Transceiver - Omaura */
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{ USB_DEVICE(VENDOR_PHILIPS, 0x060f) },
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/* Philips Infrared Transceiver - Spinel plus */
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{ USB_DEVICE(VENDOR_PHILIPS, 0x0613) },
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/* Philips eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_PHILIPS, 0x0815) },
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/* Philips/Spinel plus IR transceiver for ASUS */
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{ USB_DEVICE(VENDOR_PHILIPS, 0x206c) },
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/* Philips/Spinel plus IR transceiver for ASUS */
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{ USB_DEVICE(VENDOR_PHILIPS, 0x2088) },
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/* Philips IR transceiver (Dell branded) */
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{ USB_DEVICE(VENDOR_PHILIPS, 0x2093),
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.driver_info = MCE_GEN2_TX_INV },
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/* Realtek MCE IR Receiver and card reader */
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{ USB_DEVICE(VENDOR_REALTEK, 0x0161),
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.driver_info = MULTIFUNCTION },
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/* SMK/Toshiba G83C0004D410 */
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{ USB_DEVICE(VENDOR_SMK, 0x031d),
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.driver_info = MCE_GEN2_TX_INV_RX_GOOD },
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/* SMK eHome Infrared Transceiver (Sony VAIO) */
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{ USB_DEVICE(VENDOR_SMK, 0x0322),
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.driver_info = MCE_GEN2_TX_INV },
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/* bundled with Hauppauge PVR-150 */
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{ USB_DEVICE(VENDOR_SMK, 0x0334),
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.driver_info = MCE_GEN2_TX_INV },
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/* SMK eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_SMK, 0x0338) },
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/* SMK/I-O Data GV-MC7/RCKIT Receiver */
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{ USB_DEVICE(VENDOR_SMK, 0x0353),
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.driver_info = MCE_GEN2_NO_TX },
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/* SMK RXX6000 Infrared Receiver */
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{ USB_DEVICE(VENDOR_SMK, 0x0357),
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.driver_info = MCE_GEN2_NO_TX },
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/* Tatung eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_TATUNG, 0x9150) },
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/* Shuttle eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
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/* Shuttle eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
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/* Gateway eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
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/* Mitsumi */
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{ USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
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/* Topseed eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_TOPSEED, 0x0001),
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.driver_info = MCE_GEN2_TX_INV },
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/* Topseed HP eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_TOPSEED, 0x0006),
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.driver_info = MCE_GEN2_TX_INV },
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/* Topseed eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_TOPSEED, 0x0007),
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.driver_info = MCE_GEN2_TX_INV },
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/* Topseed eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_TOPSEED, 0x0008),
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.driver_info = MCE_GEN3 },
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/* Topseed eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_TOPSEED, 0x000a),
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.driver_info = MCE_GEN2_TX_INV },
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/* Topseed eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_TOPSEED, 0x0011),
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.driver_info = MCE_GEN3_BROKEN_IRTIMEOUT },
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/* Ricavision internal Infrared Transceiver */
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{ USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
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/* Itron ione Libra Q-11 */
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{ USB_DEVICE(VENDOR_ITRON, 0x7002) },
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/* FIC eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_FIC, 0x9242) },
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/* LG eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_LG, 0x9803) },
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/* Microsoft MCE Infrared Transceiver */
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{ USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
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/* Formosa eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
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/* Formosa21 / eHome Infrared Receiver */
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{ USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
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/* Formosa aim / Trust MCE Infrared Receiver */
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{ USB_DEVICE(VENDOR_FORMOSA, 0xe017),
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.driver_info = MCE_GEN2_NO_TX },
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/* Formosa Industrial Computing / Beanbag Emulation Device */
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{ USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
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/* Formosa21 / eHome Infrared Receiver */
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{ USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
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/* Formosa Industrial Computing AIM IR605/A */
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{ USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
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/* Formosa Industrial Computing */
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{ USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
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/* Formosa Industrial Computing */
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{ USB_DEVICE(VENDOR_FORMOSA, 0xe042) },
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/* Fintek eHome Infrared Transceiver (HP branded) */
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{ USB_DEVICE(VENDOR_FINTEK, 0x5168),
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.driver_info = MCE_GEN2_TX_INV },
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/* Fintek eHome Infrared Transceiver */
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{ USB_DEVICE(VENDOR_FINTEK, 0x0602) },
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/* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
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{ USB_DEVICE(VENDOR_FINTEK, 0x0702) },
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/* Pinnacle Remote Kit */
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{ 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 name[128];
|
|
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 tasklets.
|
|
* 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_CLOSEST(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;
|
|
|
|
data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
|
|
if (!data) {
|
|
dev_err(dev, "%s: memory allocation failed!", __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, 3000);
|
|
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(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
|
|
USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
|
|
0xc04e, 0x0000, NULL, 0, 3000);
|
|
|
|
dev_dbg(dev, "set feature - ret = %d", 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, 3000);
|
|
dev_dbg(dev, "set char length - retB = %d", 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, 3000);
|
|
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));
|
|
|
|
kfree(data);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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->device_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->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, usb_pipeout(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)
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{
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struct usb_device *dev = interface_to_usbdev(intf);
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struct mceusb_dev *ir = usb_get_intfdata(intf);
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dev_dbg(&intf->dev, "%s called", __func__);
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usb_set_intfdata(intf, NULL);
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if (!ir)
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return;
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ir->usbdev = NULL;
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cancel_work_sync(&ir->kevent);
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rc_unregister_device(ir->rc);
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usb_kill_urb(ir->urb_in);
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usb_free_urb(ir->urb_in);
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usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
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usb_put_dev(dev);
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kfree(ir);
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}
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static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
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{
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struct mceusb_dev *ir = usb_get_intfdata(intf);
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dev_info(ir->dev, "suspend");
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usb_kill_urb(ir->urb_in);
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return 0;
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}
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static int mceusb_dev_resume(struct usb_interface *intf)
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{
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struct mceusb_dev *ir = usb_get_intfdata(intf);
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dev_info(ir->dev, "resume");
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if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
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return -EIO;
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return 0;
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}
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|
|
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static struct usb_driver mceusb_dev_driver = {
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.name = DRIVER_NAME,
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.probe = mceusb_dev_probe,
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.disconnect = mceusb_dev_disconnect,
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.suspend = mceusb_dev_suspend,
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.resume = mceusb_dev_resume,
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.reset_resume = mceusb_dev_resume,
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.id_table = mceusb_dev_table
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};
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|
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module_usb_driver(mceusb_dev_driver);
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|
|
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_LICENSE("GPL");
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MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
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