[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/media/rc/mceusb.c b/src/kernel/linux/v4.14/drivers/media/rc/mceusb.c
new file mode 100644
index 0000000..bf7aaff
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/media/rc/mceusb.c
@@ -0,0 +1,1539 @@
+/*
+ * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
+ *
+ * Copyright (c) 2010-2011, Jarod Wilson <jarod@redhat.com>
+ *
+ * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan
+ * Conti, Martin Blatter and Daniel Melander, the latter of which was
+ * in turn also based on the lirc_atiusb driver by Paul Miller. The
+ * two mce drivers were merged into one by Jarod Wilson, with transmit
+ * support for the 1st-gen device added primarily by Patrick Calhoun,
+ * with a bit of tweaks by Jarod. Debugging improvements and proper
+ * support for what appears to be 3rd-gen hardware added by Jarod.
+ * Initial port from lirc driver to ir-core drivery by Jarod, based
+ * partially on a port to an earlier proposed IR infrastructure by
+ * Jon Smirl, which included enhancements and simplifications to the
+ * incoming IR buffer parsing routines.
+ *
+ * Updated in July of 2011 with the aid of Microsoft's official
+ * remote/transceiver requirements and specification document, found at
+ * download.microsoft.com, title
+ * Windows-Media-Center-RC-IR-Collection-Green-Button-Specification-03-08-2011-V2.pdf
+ *
+ *
+ * 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.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/usb.h>
+#include <linux/usb/input.h>
+#include <linux/pm_wakeup.h>
+#include <media/rc-core.h>
+
+#define DRIVER_VERSION "1.93"
+#define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>"
+#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
+ "device driver"
+#define DRIVER_NAME "mceusb"
+
+#define USB_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_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 */
+
+#define VENDOR_PHILIPS 0x0471
+#define VENDOR_SMK 0x0609
+#define VENDOR_TATUNG 0x1460
+#define VENDOR_GATEWAY 0x107b
+#define VENDOR_SHUTTLE 0x1308
+#define VENDOR_SHUTTLE2 0x051c
+#define VENDOR_MITSUMI 0x03ee
+#define VENDOR_TOPSEED 0x1784
+#define VENDOR_RICAVISION 0x179d
+#define VENDOR_ITRON 0x195d
+#define VENDOR_FIC 0x1509
+#define VENDOR_LG 0x043e
+#define VENDOR_MICROSOFT 0x045e
+#define VENDOR_FORMOSA 0x147a
+#define VENDOR_FINTEK 0x1934
+#define VENDOR_PINNACLE 0x2304
+#define VENDOR_ECS 0x1019
+#define VENDOR_WISTRON 0x0fb8
+#define VENDOR_COMPRO 0x185b
+#define VENDOR_NORTHSTAR 0x04eb
+#define VENDOR_REALTEK 0x0bda
+#define VENDOR_TIVO 0x105a
+#define VENDOR_CONEXANT 0x0572
+#define VENDOR_TWISTEDMELON 0x2596
+#define VENDOR_HAUPPAUGE 0x2040
+#define VENDOR_PCTV 0x2013
+#define VENDOR_ADAPTEC 0x03f3
+
+enum mceusb_model_type {
+ MCE_GEN2 = 0, /* Most boards */
+ MCE_GEN1,
+ MCE_GEN3,
+ MCE_GEN2_TX_INV,
+ POLARIS_EVK,
+ CX_HYBRID_TV,
+ MULTIFUNCTION,
+ TIVO_KIT,
+ MCE_GEN2_NO_TX,
+ HAUPPAUGE_CX_HYBRID_TV,
+};
+
+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
+ */
+ .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",
+ },
+ [HAUPPAUGE_CX_HYBRID_TV] = {
+ .no_tx = 1, /* eeprom says it has no tx */
+ .name = "Conexant Hybrid TV (cx231xx) MCE IR no TX",
+ },
+ [MULTIFUNCTION] = {
+ .mce_gen2 = 1,
+ .ir_intfnum = 2,
+ },
+ [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),
+ .driver_info = MCE_GEN2_TX_INV },
+ /* Realtek MCE IR Receiver and card reader */
+ { USB_DEVICE(VENDOR_REALTEK, 0x0161),
+ .driver_info = MULTIFUNCTION },
+ /* SMK/Toshiba G83C0004D410 */
+ { USB_DEVICE(VENDOR_SMK, 0x031d),
+ .driver_info = MCE_GEN2_TX_INV },
+ /* SMK eHome Infrared Transceiver (Sony VAIO) */
+ { USB_DEVICE(VENDOR_SMK, 0x0322),
+ .driver_info = MCE_GEN2_TX_INV },
+ /* bundled with Hauppauge PVR-150 */
+ { USB_DEVICE(VENDOR_SMK, 0x0334),
+ .driver_info = MCE_GEN2_TX_INV },
+ /* SMK eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_SMK, 0x0338) },
+ /* SMK/I-O Data GV-MC7/RCKIT Receiver */
+ { USB_DEVICE(VENDOR_SMK, 0x0353),
+ .driver_info = MCE_GEN2_NO_TX },
+ /* SMK RXX6000 Infrared Receiver */
+ { USB_DEVICE(VENDOR_SMK, 0x0357),
+ .driver_info = MCE_GEN2_NO_TX },
+ /* Tatung eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_TATUNG, 0x9150) },
+ /* Shuttle eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_SHUTTLE, 0xc001) },
+ /* Shuttle eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_SHUTTLE2, 0xc001) },
+ /* Gateway eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_GATEWAY, 0x3009) },
+ /* Mitsumi */
+ { USB_DEVICE(VENDOR_MITSUMI, 0x2501) },
+ /* Topseed eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_TOPSEED, 0x0001),
+ .driver_info = MCE_GEN2_TX_INV },
+ /* Topseed HP eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_TOPSEED, 0x0006),
+ .driver_info = MCE_GEN2_TX_INV },
+ /* Topseed eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_TOPSEED, 0x0007),
+ .driver_info = MCE_GEN2_TX_INV },
+ /* Topseed eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_TOPSEED, 0x0008),
+ .driver_info = MCE_GEN3 },
+ /* Topseed eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_TOPSEED, 0x000a),
+ .driver_info = MCE_GEN2_TX_INV },
+ /* Topseed eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_TOPSEED, 0x0011),
+ .driver_info = MCE_GEN3 },
+ /* Ricavision internal Infrared Transceiver */
+ { USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
+ /* Itron ione Libra Q-11 */
+ { USB_DEVICE(VENDOR_ITRON, 0x7002) },
+ /* FIC eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_FIC, 0x9242) },
+ /* LG eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_LG, 0x9803) },
+ /* Microsoft MCE Infrared Transceiver */
+ { USB_DEVICE(VENDOR_MICROSOFT, 0x00a0) },
+ /* Formosa eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe015) },
+ /* Formosa21 / eHome Infrared Receiver */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe016) },
+ /* Formosa aim / Trust MCE Infrared Receiver */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe017),
+ .driver_info = MCE_GEN2_NO_TX },
+ /* Formosa Industrial Computing / Beanbag Emulation Device */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
+ /* Formosa21 / eHome Infrared Receiver */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
+ /* Formosa Industrial Computing AIM IR605/A */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
+ /* Formosa Industrial Computing */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
+ /* Formosa Industrial Computing */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe042) },
+ /* Fintek eHome Infrared Transceiver (HP branded) */
+ { USB_DEVICE(VENDOR_FINTEK, 0x5168),
+ .driver_info = MCE_GEN2_TX_INV },
+ /* Fintek eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
+ /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
+ { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
+ /* Pinnacle Remote Kit */
+ { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
+ .driver_info = MCE_GEN3 },
+ /* Elitegroup Computer Systems IR */
+ { USB_DEVICE(VENDOR_ECS, 0x0f38) },
+ /* Wistron Corp. eHome Infrared Receiver */
+ { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
+ /* Compro K100 */
+ { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
+ /* Compro K100 v2 */
+ { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
+ /* Northstar Systems, Inc. eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
+ /* TiVo PC IR Receiver */
+ { USB_DEVICE(VENDOR_TIVO, 0x2000),
+ .driver_info = TIVO_KIT },
+ /* Conexant Hybrid TV "Shelby" Polaris SDK */
+ { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
+ .driver_info = POLARIS_EVK },
+ /* Conexant Hybrid TV RDU253S Polaris */
+ { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
+ .driver_info = CX_HYBRID_TV },
+ /* Twisted Melon Inc. - Manta Mini Receiver */
+ { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8008) },
+ /* Twisted Melon Inc. - Manta Pico Receiver */
+ { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8016) },
+ /* Twisted Melon Inc. - Manta Transceiver */
+ { USB_DEVICE(VENDOR_TWISTEDMELON, 0x8042) },
+ /* Hauppauge WINTV-HVR-HVR 930C-HD - based on cx231xx */
+ { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb130),
+ .driver_info = HAUPPAUGE_CX_HYBRID_TV },
+ { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb131),
+ .driver_info = HAUPPAUGE_CX_HYBRID_TV },
+ { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb138),
+ .driver_info = HAUPPAUGE_CX_HYBRID_TV },
+ { USB_DEVICE(VENDOR_HAUPPAUGE, 0xb139),
+ .driver_info = HAUPPAUGE_CX_HYBRID_TV },
+ { 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) },
+
+ /* Terminating entry */
+ { }
+};
+
+/* data structure for each usb transceiver */
+struct mceusb_dev {
+ /* ir-core bits */
+ struct rc_dev *rc;
+
+ /* optional features we can enable */
+ bool learning_enabled;
+
+ /* core device bits */
+ struct device *dev;
+
+ /* usb */
+ struct usb_device *usbdev;
+ 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;
+ } 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 */
+
+ /*
+ * 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
+};
+
+/* 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 = 2;
+ break;
+ case MCE_RSP_EQWAKESUPPORT:
+ case MCE_RSP_GETWAKESOURCE:
+ case MCE_RSP_EQDEVDETAILS:
+ case MCE_RSP_EQEMVER:
+ 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:
+ 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;
+ int start, skip = 0;
+ u32 carrier, period;
+
+ /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
+ if (ir->flags.microsoft_gen1 && !out && !offset)
+ skip = 2;
+
+ if (len <= skip)
+ return;
+
+ dev_dbg(dev, "%cx data: %*ph (length=%d)",
+ (out ? 't' : 'r'),
+ min(len, buf_len - offset), buf + offset, len);
+
+ inout = out ? "Request" : "Got";
+
+ start = offset + skip;
+ cmd = buf[start] & 0xff;
+ subcmd = buf[start + 1] & 0xff;
+ data = buf + start + 2;
+
+ 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[start + 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:
+ period = DIV_ROUND_CLOSEST((1U << data[0] * 2) *
+ (data[1] + 1), 10);
+ if (!period)
+ break;
+ carrier = (1000 * 1000) / 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 if (ir->learning_enabled)
+ dev_dbg(dev, "RX pulse 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;
+ default:
+ dev_dbg(dev, "Unknown command 0x%02x 0x%02x",
+ cmd, subcmd);
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (cmd == MCE_IRDATA_TRAILER)
+ dev_dbg(dev, "End of raw IR data");
+ else if ((cmd != MCE_CMD_PORT_IR) &&
+ ((cmd & MCE_PORT_MASK) == MCE_COMMAND_IRDATA))
+ dev_dbg(dev, "Raw IR data, %d pulse/space samples", ir->rem);
+#endif
+}
+
+/*
+ * Schedule work that can't be done in interrupt handlers
+ * (mceusb_dev_recv() and mce_async_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 (!schedule_work(&ir->kevent))
+ dev_err(ir->dev, "kevent %d may have been dropped", kevent);
+ else
+ dev_dbg(ir->dev, "kevent %d scheduled", kevent);
+}
+
+static void mce_async_callback(struct urb *urb)
+{
+ struct mceusb_dev *ir;
+ int len;
+
+ if (!urb)
+ return;
+
+ ir = urb->context;
+
+ switch (urb->status) {
+ /* success */
+ case 0:
+ len = urb->actual_length;
+
+ mceusb_dev_printdata(ir, urb->transfer_buffer, len,
+ 0, len, true);
+ break;
+
+ case -ECONNRESET:
+ case -ENOENT:
+ case -EILSEQ:
+ case -ESHUTDOWN:
+ break;
+
+ case -EPIPE:
+ dev_err(ir->dev, "Error: request urb status = %d (TX HALT)",
+ urb->status);
+ mceusb_defer_kevent(ir, EVENT_TX_HALT);
+ break;
+
+ default:
+ dev_err(ir->dev, "Error: request urb status = %d", urb->status);
+ break;
+ }
+
+ /* the transfer buffer and urb were allocated in mce_request_packet */
+ kfree(urb->transfer_buffer);
+ usb_free_urb(urb);
+}
+
+/* request outgoing (send) usb packet - used to initialize remote */
+static void mce_request_packet(struct mceusb_dev *ir, unsigned char *data,
+ int size)
+{
+ int res;
+ struct urb *async_urb;
+ struct device *dev = ir->dev;
+ unsigned char *async_buf;
+
+ async_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (unlikely(!async_urb)) {
+ dev_err(dev, "Error, couldn't allocate urb!");
+ return;
+ }
+
+ async_buf = kmalloc(size, GFP_KERNEL);
+ if (!async_buf) {
+ usb_free_urb(async_urb);
+ return;
+ }
+
+ /* outbound data */
+ if (usb_endpoint_xfer_int(ir->usb_ep_out))
+ usb_fill_int_urb(async_urb, ir->usbdev, ir->pipe_out,
+ async_buf, size, mce_async_callback, ir,
+ ir->usb_ep_out->bInterval);
+ else
+ usb_fill_bulk_urb(async_urb, ir->usbdev, ir->pipe_out,
+ async_buf, size, mce_async_callback, ir);
+
+ memcpy(async_buf, data, size);
+
+ dev_dbg(dev, "send request called (size=%#x)", size);
+
+ res = usb_submit_urb(async_urb, GFP_ATOMIC);
+ if (res) {
+ dev_err(dev, "send request FAILED! (res=%d)", res);
+ kfree(async_buf);
+ usb_free_urb(async_urb);
+ return;
+ }
+ dev_dbg(dev, "send request complete (res=%d)", res);
+}
+
+static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
+{
+ int rsize = sizeof(DEVICE_RESUME);
+
+ if (ir->need_reset) {
+ ir->need_reset = false;
+ mce_request_packet(ir, DEVICE_RESUME, rsize);
+ msleep(10);
+ }
+
+ mce_request_packet(ir, data, size);
+ msleep(10);
+}
+
+/* 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, length, ret = 0;
+ int cmdcount = 0;
+ unsigned char cmdbuf[MCE_CMDBUF_SIZE];
+
+ /* MCE tx init header */
+ cmdbuf[cmdcount++] = MCE_CMD_PORT_IR;
+ cmdbuf[cmdcount++] = MCE_CMD_SETIRTXPORTS;
+ cmdbuf[cmdcount++] = ir->tx_mask;
+
+ /* Send the set TX ports command */
+ mce_async_out(ir, cmdbuf, cmdcount);
+ cmdcount = 0;
+
+ /* Generate mce packet data */
+ for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); 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_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));
+ }
+
+ /* Check if we have room for the empty packet at the end */
+ if (cmdcount >= MCE_CMDBUF_SIZE) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* Fix packet length in last header */
+ length = cmdcount % MCE_CODE_LENGTH;
+ cmdbuf[cmdcount - length] -= MCE_CODE_LENGTH - length;
+
+ /* 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);
+
+out:
+ 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;
+
+ /* 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_async_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_async_out(ir, cmdbuf, sizeof(cmdbuf));
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+
+ }
+
+ return 0;
+}
+
+/*
+ * 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]) {
+ /* the one and only 5-byte return value command */
+ case MCE_RSP_GETPORTSTATUS:
+ if ((ir->buf_in[index + 4] & 0xff) == 0x00)
+ ir->txports_cabled |= 1 << hi;
+ break;
+
+ /* 2-byte return value commands */
+ case MCE_RSP_EQIRTIMEOUT:
+ ir->rc->timeout = US_TO_NS((hi << 8 | lo) * MCE_TIME_UNIT);
+ break;
+ case MCE_RSP_EQIRNUMPORTS:
+ ir->num_txports = hi;
+ ir->num_rxports = lo;
+ break;
+
+ /* 1-byte return value commands */
+ case MCE_RSP_EQEMVER:
+ ir->emver = hi;
+ break;
+ case MCE_RSP_EQIRTXPORTS:
+ ir->tx_mask = hi;
+ break;
+ case MCE_RSP_EQIRRXPORTEN:
+ ir->learning_enabled = ((hi & 0x02) == 0x02);
+ ir->rxports_active = hi;
+ break;
+ case MCE_RSP_CMD_ILLEGAL:
+ ir->need_reset = true;
+ break;
+ default:
+ break;
+ }
+}
+
+static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
+{
+ DEFINE_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);
+ 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);
+
+ dev_dbg(ir->dev, "Storing %s with duration %u",
+ rawir.pulse ? "pulse" : "space",
+ rawir.duration);
+
+ if (ir_raw_event_store_with_filter(ir->rc, &rawir))
+ event = true;
+ 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, buf_len,
+ 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;
+ }
+ 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 -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_async_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, HZ * 3);
+ 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, HZ * 3);
+
+ 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, HZ * 3);
+ 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, HZ * 3);
+ dev_dbg(dev, "set handshake - retC = %d", 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 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)
+{
+ 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_async_out(ir, GET_NUM_PORTS, sizeof(GET_NUM_PORTS));
+
+ /* get the carrier and frequency */
+ mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
+
+ if (ir->num_txports && !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));
+
+ for (i = 0; i < ir->num_txports; i++) {
+ cmdbuf[2] = i;
+ mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
+ }
+}
+
+static void mceusb_flash_led(struct mceusb_dev *ir)
+{
+ if (ir->emver < 2)
+ return;
+
+ mce_async_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;
+
+ if (test_bit(EVENT_RX_HALT, &ir->kevent_flags)) {
+ usb_unlink_urb(ir->urb_in);
+ status = usb_clear_halt(ir->usbdev, ir->pipe_in);
+ if (status < 0) {
+ dev_err(ir->dev, "rx clear halt error %d",
+ status);
+ }
+ clear_bit(EVENT_RX_HALT, &ir->kevent_flags);
+ if (status == 0) {
+ 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);
+ if (status < 0)
+ dev_err(ir->dev, "tx clear halt error %d", status);
+ 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->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;
+
+ 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_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 = 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->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)
+ 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);
+
+ /*
+ * Initialize async USB error handler before registering
+ * or activating any mceusb RX and TX functions
+ */
+ INIT_WORK(&ir->kevent, mceusb_deferred_kevent);
+
+ ir->rc = mceusb_init_rc_dev(ir);
+ if (!ir->rc)
+ goto rc_dev_fail;
+
+ /* wire up inbound data handler */
+ if (usb_endpoint_xfer_int(ep_in))
+ usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,
+ mceusb_dev_recv, ir, ep_in->bInterval);
+ else
+ usb_fill_bulk_urb(ir->urb_in, dev, pipe, ir->buf_in, maxp,
+ mceusb_dev_recv, ir);
+
+ ir->urb_in->transfer_dma = ir->dma_in;
+ ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* flush buffers on the device */
+ dev_dbg(&intf->dev, "Flushing receive buffers");
+ res = usb_submit_urb(ir->urb_in, GFP_KERNEL);
+ if (res)
+ dev_err(&intf->dev, "failed to flush buffers: %d", res);
+
+ /* figure out which firmware/emulator version this hardware has */
+ mceusb_get_emulator_version(ir);
+
+ /* initialize device */
+ if (ir->flags.microsoft_gen1)
+ mceusb_gen1_init(ir);
+ else if (!is_gen3)
+ mceusb_gen2_init(ir);
+
+ mceusb_get_parameters(ir);
+
+ mceusb_flash_led(ir);
+
+ if (!ir->flags.no_tx)
+ mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
+
+ usb_set_intfdata(intf, ir);
+
+ /* enable wake via this device */
+ device_set_wakeup_capable(ir->dev, true);
+ device_set_wakeup_enable(ir->dev, true);
+
+ dev_info(&intf->dev, "Registered %s with mce emulator interface version %x",
+ name, ir->emver);
+ dev_info(&intf->dev, "%x tx ports (0x%x cabled) and %x rx sensors (0x%x active)",
+ ir->num_txports, ir->txports_cabled,
+ ir->num_rxports, ir->rxports_active);
+
+ return 0;
+
+ /* Error-handling path */
+rc_dev_fail:
+ cancel_work_sync(&ir->kevent);
+ usb_put_dev(ir->usbdev);
+ usb_kill_urb(ir->urb_in);
+ usb_free_urb(ir->urb_in);
+urb_in_alloc_fail:
+ usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
+buf_in_alloc_fail:
+ kfree(ir);
+mem_alloc_fail:
+ dev_err(&intf->dev, "%s: device setup failed!", __func__);
+
+ return -ENOMEM;
+}
+
+
+static void mceusb_dev_disconnect(struct usb_interface *intf)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct mceusb_dev *ir = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+
+ if (!ir)
+ return;
+
+ ir->usbdev = NULL;
+ cancel_work_sync(&ir->kevent);
+ rc_unregister_device(ir->rc);
+ usb_kill_urb(ir->urb_in);
+ usb_free_urb(ir->urb_in);
+ usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
+ usb_put_dev(dev);
+
+ kfree(ir);
+}
+
+static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct mceusb_dev *ir = usb_get_intfdata(intf);
+ dev_info(ir->dev, "suspend");
+ usb_kill_urb(ir->urb_in);
+ return 0;
+}
+
+static int mceusb_dev_resume(struct usb_interface *intf)
+{
+ struct mceusb_dev *ir = usb_get_intfdata(intf);
+ dev_info(ir->dev, "resume");
+ if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
+ return -EIO;
+ return 0;
+}
+
+static struct usb_driver mceusb_dev_driver = {
+ .name = DRIVER_NAME,
+ .probe = mceusb_dev_probe,
+ .disconnect = mceusb_dev_disconnect,
+ .suspend = mceusb_dev_suspend,
+ .resume = mceusb_dev_resume,
+ .reset_resume = mceusb_dev_resume,
+ .id_table = mceusb_dev_table
+};
+
+module_usb_driver(mceusb_dev_driver);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(usb, mceusb_dev_table);