--- /dev/null
+/*
+ * Driver for USB Windows Media Center Ed. eHome Infrared Transceivers
+ *
+ * Copyright (c) 2010 by Jarod Wilson <jarod@redhat.com>
+ *
+ * Based on the original lirc_mceusb and lirc_mceusb2 drivers, by Dan
+ * Conti, Martin Blatter and Daniel Melander, the latter of which was
+ * in turn also based on the lirc_atiusb driver by Paul Miller. The
+ * two mce drivers were merged into one by Jarod Wilson, with transmit
+ * support for the 1st-gen device added primarily by Patrick Calhoun,
+ * with a bit of tweaks by Jarod. Debugging improvements and proper
+ * support for what appears to be 3rd-gen hardware added by Jarod.
+ * Initial port from lirc driver to ir-core drivery by Jarod, based
+ * partially on a port to an earlier proposed IR infrastructure by
+ * Jon Smirl, which included enhancements and simplifications to the
+ * incoming IR buffer parsing routines.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/usb.h>
+#include <linux/usb/input.h>
+#include <media/rc-core.h>
+
+#define DRIVER_VERSION "1.91"
+#define DRIVER_AUTHOR "Jarod Wilson <jarod@wilsonet.com>"
+#define DRIVER_DESC "Windows Media Center Ed. eHome Infrared Transceiver " \
+ "device driver"
+#define DRIVER_NAME "mceusb"
+
+#define USB_BUFLEN 32 /* USB reception buffer length */
+#define USB_CTRL_MSG_SZ 2 /* Size of usb ctrl msg on gen1 hw */
+#define MCE_G1_INIT_MSGS 40 /* Init messages on gen1 hw to throw out */
+
+/* MCE constants */
+#define MCE_CMDBUF_SIZE 384 /* MCE Command buffer length */
+#define MCE_TIME_UNIT 50 /* Approx 50us resolution */
+#define MCE_CODE_LENGTH 5 /* Normal length of packet (with header) */
+#define MCE_PACKET_SIZE 4 /* Normal length of packet (without header) */
+#define MCE_IRDATA_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */
+#define MCE_IRDATA_TRAILER 0x80 /* End of IR data */
+#define MCE_TX_HEADER_LENGTH 3 /* # of bytes in the initializing tx header */
+#define MCE_MAX_CHANNELS 2 /* Two transmitters, hardware dependent? */
+#define MCE_DEFAULT_TX_MASK 0x03 /* Vals: TX1=0x01, TX2=0x02, ALL=0x03 */
+#define MCE_PULSE_BIT 0x80 /* Pulse bit, MSB set == PULSE else SPACE */
+#define MCE_PULSE_MASK 0x7f /* Pulse mask */
+#define MCE_MAX_PULSE_LENGTH 0x7f /* Longest transmittable pulse symbol */
+
+#define MCE_HW_CMD_HEADER 0xff /* MCE hardware command header */
+#define MCE_COMMAND_HEADER 0x9f /* MCE command header */
+#define MCE_COMMAND_MASK 0xe0 /* Mask out command bits */
+#define MCE_COMMAND_NULL 0x00 /* These show up various places... */
+/* if buf[i] & MCE_COMMAND_MASK == 0x80 and buf[i] != MCE_COMMAND_HEADER,
+ * then we're looking at a raw IR data sample */
+#define MCE_COMMAND_IRDATA 0x80
+#define MCE_PACKET_LENGTH_MASK 0x1f /* Packet length mask */
+
+/* Sub-commands, which follow MCE_COMMAND_HEADER or MCE_HW_CMD_HEADER */
+#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_S_CARRIER 0x06 /* Set TX carrier frequency */
+#define MCE_CMD_G_CARRIER 0x07 /* Get TX carrier frequency */
+#define MCE_CMD_S_TXMASK 0x08 /* Set TX port bitmask */
+#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_S_TIMEOUT 0x0c /* Set RX timeout value */
+#define MCE_CMD_G_TIMEOUT 0x0d /* Get RX timeout value */
+#define MCE_CMD_UNKNOWN5 0x0e /* Unknown */
+#define MCE_CMD_UNKNOWN6 0x0f /* Unknown */
+#define MCE_CMD_G_RXPORTSTS 0x11 /* Get RX port status */
+#define MCE_CMD_G_TXMASK 0x13 /* Set TX port bitmask */
+#define MCE_CMD_S_RXSENSOR 0x14 /* Set RX sensor (std/learning) */
+#define MCE_CMD_G_RXSENSOR 0x15 /* Get RX sensor (std/learning) */
+#define MCE_RSP_PULSE_COUNT 0x15 /* RX pulse count (only if learning) */
+#define MCE_CMD_TX_PORTS 0x16 /* Get number of TX ports */
+#define MCE_CMD_G_WAKESRC 0x17 /* Get wake source */
+#define MCE_CMD_UNKNOWN7 0x18 /* Unknown */
+#define MCE_CMD_UNKNOWN8 0x19 /* Unknown */
+#define MCE_CMD_UNKNOWN9 0x1b /* Unknown */
+#define MCE_CMD_DEVICE_RESET 0xaa /* Reset the hardware */
+#define MCE_RSP_CMD_INVALID 0xfe /* Invalid command issued */
+
+
+/* module parameters */
+#ifdef CONFIG_USB_DEBUG
+static int debug = 1;
+#else
+static int debug;
+#endif
+
+/* general constants */
+#define SEND_FLAG_IN_PROGRESS 1
+#define SEND_FLAG_COMPLETE 2
+#define RECV_FLAG_IN_PROGRESS 3
+#define RECV_FLAG_COMPLETE 4
+
+#define MCEUSB_RX 1
+#define MCEUSB_TX 2
+
+#define VENDOR_PHILIPS 0x0471
+#define VENDOR_SMK 0x0609
+#define VENDOR_TATUNG 0x1460
+#define VENDOR_GATEWAY 0x107b
+#define VENDOR_SHUTTLE 0x1308
+#define VENDOR_SHUTTLE2 0x051c
+#define VENDOR_MITSUMI 0x03ee
+#define VENDOR_TOPSEED 0x1784
+#define VENDOR_RICAVISION 0x179d
+#define VENDOR_ITRON 0x195d
+#define VENDOR_FIC 0x1509
+#define VENDOR_LG 0x043e
+#define VENDOR_MICROSOFT 0x045e
+#define VENDOR_FORMOSA 0x147a
+#define VENDOR_FINTEK 0x1934
+#define VENDOR_PINNACLE 0x2304
+#define VENDOR_ECS 0x1019
+#define VENDOR_WISTRON 0x0fb8
+#define VENDOR_COMPRO 0x185b
+#define VENDOR_NORTHSTAR 0x04eb
+#define VENDOR_REALTEK 0x0bda
+#define VENDOR_TIVO 0x105a
+#define VENDOR_CONEXANT 0x0572
+
+enum mceusb_model_type {
+ MCE_GEN2 = 0, /* Most boards */
+ MCE_GEN1,
+ MCE_GEN3,
+ MCE_GEN2_TX_INV,
+ POLARIS_EVK,
+ CX_HYBRID_TV,
+ MULTIFUNCTION,
+};
+
+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_TX_INV] = {
+ .mce_gen2 = 1,
+ .tx_mask_normal = 1,
+ },
+ [MCE_GEN3] = {
+ .mce_gen3 = 1,
+ .tx_mask_normal = 1,
+ },
+ [POLARIS_EVK] = {
+ /*
+ * In fact, the EVK is shipped without
+ * remotes, but we should have something handy,
+ * to allow testing it
+ */
+ .rc_map = RC_MAP_RC5_HAUPPAUGE_NEW,
+ .name = "Conexant Hybrid TV (cx231xx) MCE IR",
+ },
+ [CX_HYBRID_TV] = {
+ .no_tx = 1, /* tx isn't wired up at all */
+ .name = "Conexant Hybrid TV (cx231xx) MCE IR",
+ },
+ [MULTIFUNCTION] = {
+ .mce_gen2 = 1,
+ .ir_intfnum = 2,
+ },
+};
+
+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) },
+ /* 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) },
+ /* 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_GEN2_TX_INV },
+ /* 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) },
+ /* Formosa Industrial Computing / Beanbag Emulation Device */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe018) },
+ /* Formosa21 / eHome Infrared Receiver */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe03a) },
+ /* Formosa Industrial Computing AIM IR605/A */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe03c) },
+ /* Formosa Industrial Computing */
+ { USB_DEVICE(VENDOR_FORMOSA, 0xe03e) },
+ /* Fintek eHome Infrared Transceiver (HP branded) */
+ { USB_DEVICE(VENDOR_FINTEK, 0x5168) },
+ /* Fintek eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_FINTEK, 0x0602) },
+ /* Fintek eHome Infrared Transceiver (in the AOpen MP45) */
+ { USB_DEVICE(VENDOR_FINTEK, 0x0702) },
+ /* Pinnacle Remote Kit */
+ { USB_DEVICE(VENDOR_PINNACLE, 0x0225),
+ .driver_info = MCE_GEN3 },
+ /* Elitegroup Computer Systems IR */
+ { USB_DEVICE(VENDOR_ECS, 0x0f38) },
+ /* Wistron Corp. eHome Infrared Receiver */
+ { USB_DEVICE(VENDOR_WISTRON, 0x0002) },
+ /* Compro K100 */
+ { USB_DEVICE(VENDOR_COMPRO, 0x3020) },
+ /* Compro K100 v2 */
+ { USB_DEVICE(VENDOR_COMPRO, 0x3082) },
+ /* Northstar Systems, Inc. eHome Infrared Transceiver */
+ { USB_DEVICE(VENDOR_NORTHSTAR, 0xe004) },
+ /* TiVo PC IR Receiver */
+ { USB_DEVICE(VENDOR_TIVO, 0x2000) },
+ /* Conexant Hybrid TV "Shelby" Polaris SDK */
+ { USB_DEVICE(VENDOR_CONEXANT, 0x58a1),
+ .driver_info = POLARIS_EVK },
+ /* Conexant Hybrid TV RDU253S Polaris */
+ { USB_DEVICE(VENDOR_CONEXANT, 0x58a5),
+ .driver_info = CX_HYBRID_TV },
+ /* Terminating entry */
+ { }
+};
+
+/* data structure for each usb transceiver */
+struct mceusb_dev {
+ /* ir-core bits */
+ struct rc_dev *rc;
+
+ /* optional features we can enable */
+ bool carrier_report_enabled;
+ bool learning_enabled;
+
+ /* core device bits */
+ struct device *dev;
+
+ /* usb */
+ struct usb_device *usbdev;
+ struct urb *urb_in;
+ struct usb_endpoint_descriptor *usb_ep_in;
+ struct usb_endpoint_descriptor *usb_ep_out;
+
+ /* buffers and dma */
+ unsigned char *buf_in;
+ unsigned int len_in;
+ dma_addr_t dma_in;
+ dma_addr_t dma_out;
+
+ enum {
+ CMD_HEADER = 0,
+ SUBCMD,
+ CMD_DATA,
+ PARSE_IRDATA,
+ } parser_state;
+
+ u8 cmd, rem; /* Remaining IR data bytes in packet */
+
+ struct {
+ u32 connected:1;
+ u32 tx_mask_normal:1;
+ u32 microsoft_gen1:1;
+ u32 no_tx:1;
+ } flags;
+
+ /* transmit support */
+ int send_flags;
+ u32 carrier;
+ unsigned char tx_mask;
+
+ char name[128];
+ char phys[64];
+ enum mceusb_model_type model;
+};
+
+/*
+ * MCE Device Command Strings
+ * Device command responses vary from device to device...
+ * - DEVICE_RESET resets the hardware to its default state
+ * - GET_REVISION fetches the hardware/software revision, common
+ * replies are ff 0b 45 ff 1b 08 and ff 0b 50 ff 1b 42
+ * - GET_CARRIER_FREQ gets the carrier mode and frequency of the
+ * device, with replies in the form of 9f 06 MM FF, where MM is 0-3,
+ * meaning clk of 10000000, 2500000, 625000 or 156250, and FF is
+ * ((clk / frequency) - 1)
+ * - GET_RX_TIMEOUT fetches the receiver timeout in units of 50us,
+ * response in the form of 9f 0c msb lsb
+ * - GET_TX_BITMASK fetches the transmitter bitmask, replies in
+ * the form of 9f 08 bm, where bm is the bitmask
+ * - GET_RX_SENSOR fetches the RX sensor setting -- long-range
+ * general use one or short-range learning one, in the form of
+ * 9f 14 ss, where ss is either 01 for long-range or 02 for short
+ * - SET_CARRIER_FREQ sets a new carrier mode and frequency
+ * - SET_TX_BITMASK sets the transmitter bitmask
+ * - SET_RX_TIMEOUT sets the receiver timeout
+ * - SET_RX_SENSOR sets which receiver sensor to use
+ */
+static char DEVICE_RESET[] = {MCE_COMMAND_NULL, MCE_HW_CMD_HEADER,
+ MCE_CMD_DEVICE_RESET};
+static char GET_REVISION[] = {MCE_HW_CMD_HEADER, MCE_CMD_G_REVISION};
+static char GET_UNKNOWN[] = {MCE_HW_CMD_HEADER, MCE_CMD_UNKNOWN7};
+static char GET_UNKNOWN2[] = {MCE_COMMAND_HEADER, MCE_CMD_UNKNOWN2};
+static char GET_CARRIER_FREQ[] = {MCE_COMMAND_HEADER, MCE_CMD_G_CARRIER};
+static char GET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TIMEOUT};
+static char GET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_G_TXMASK};
+static char GET_RX_SENSOR[] = {MCE_COMMAND_HEADER, MCE_CMD_G_RXSENSOR};
+/* 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_COMMAND_HEADER,
+ MCE_CMD_S_CARRIER, 0x00, 0x00};
+static char SET_TX_BITMASK[] = {MCE_COMMAND_HEADER, MCE_CMD_S_TXMASK, 0x00};
+static char SET_RX_TIMEOUT[] = {MCE_COMMAND_HEADER,
+ MCE_CMD_S_TIMEOUT, 0x00, 0x00};
+static char SET_RX_SENSOR[] = {MCE_COMMAND_HEADER,
+ MCE_CMD_S_RXSENSOR, 0x00};
+*/
+
+static int mceusb_cmdsize(u8 cmd, u8 subcmd)
+{
+ int datasize = 0;
+
+ switch (cmd) {
+ case MCE_COMMAND_NULL:
+ if (subcmd == MCE_HW_CMD_HEADER)
+ datasize = 1;
+ break;
+ case MCE_HW_CMD_HEADER:
+ switch (subcmd) {
+ case MCE_CMD_G_REVISION:
+ datasize = 2;
+ break;
+ }
+ case MCE_COMMAND_HEADER:
+ switch (subcmd) {
+ case MCE_CMD_UNKNOWN:
+ case MCE_CMD_S_CARRIER:
+ case MCE_CMD_S_TIMEOUT:
+ case MCE_RSP_PULSE_COUNT:
+ datasize = 2;
+ break;
+ case MCE_CMD_SIG_END:
+ case MCE_CMD_S_TXMASK:
+ case MCE_CMD_S_RXSENSOR:
+ datasize = 1;
+ break;
+ }
+ }
+ return datasize;
+}
+
+static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf,
+ int offset, int len, bool out)
+{
+ char codes[USB_BUFLEN * 3 + 1];
+ char inout[9];
+ u8 cmd, subcmd, data1, data2;
+ struct device *dev = ir->dev;
+ int i, start, skip = 0;
+
+ if (!debug)
+ return;
+
+ /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
+ if (ir->flags.microsoft_gen1 && !out && !offset)
+ skip = 2;
+
+ if (len <= skip)
+ return;
+
+ for (i = 0; i < len && i < USB_BUFLEN; i++)
+ snprintf(codes + i * 3, 4, "%02x ", buf[i + offset] & 0xff);
+
+ dev_info(dev, "%sx data: %s(length=%d)\n",
+ (out ? "t" : "r"), codes, len);
+
+ if (out)
+ strcpy(inout, "Request\0");
+ else
+ strcpy(inout, "Got\0");
+
+ start = offset + skip;
+ cmd = buf[start] & 0xff;
+ subcmd = buf[start + 1] & 0xff;
+ data1 = buf[start + 2] & 0xff;
+ data2 = buf[start + 3] & 0xff;
+
+ switch (cmd) {
+ case MCE_COMMAND_NULL:
+ if ((subcmd == MCE_HW_CMD_HEADER) &&
+ (data1 == MCE_CMD_DEVICE_RESET))
+ dev_info(dev, "Device reset requested\n");
+ else
+ dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
+ cmd, subcmd);
+ break;
+ case MCE_HW_CMD_HEADER:
+ switch (subcmd) {
+ case MCE_CMD_G_REVISION:
+ if (len == 2)
+ dev_info(dev, "Get hw/sw rev?\n");
+ else
+ dev_info(dev, "hw/sw rev 0x%02x 0x%02x "
+ "0x%02x 0x%02x\n", data1, data2,
+ buf[start + 4], buf[start + 5]);
+ break;
+ case MCE_CMD_DEVICE_RESET:
+ dev_info(dev, "Device reset requested\n");
+ break;
+ case MCE_RSP_CMD_INVALID:
+ dev_info(dev, "Previous command not supported\n");
+ break;
+ case MCE_CMD_UNKNOWN7:
+ case MCE_CMD_UNKNOWN9:
+ default:
+ dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
+ cmd, subcmd);
+ break;
+ }
+ break;
+ case MCE_COMMAND_HEADER:
+ switch (subcmd) {
+ case MCE_CMD_SIG_END:
+ dev_info(dev, "End of signal\n");
+ break;
+ case MCE_CMD_PING:
+ dev_info(dev, "Ping\n");
+ break;
+ case MCE_CMD_UNKNOWN:
+ dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n",
+ data1, data2);
+ break;
+ case MCE_CMD_S_CARRIER:
+ dev_info(dev, "%s carrier mode and freq of "
+ "0x%02x 0x%02x\n", inout, data1, data2);
+ break;
+ case MCE_CMD_G_CARRIER:
+ dev_info(dev, "Get carrier mode and freq\n");
+ break;
+ case MCE_CMD_S_TXMASK:
+ dev_info(dev, "%s transmit blaster mask of 0x%02x\n",
+ inout, data1);
+ break;
+ case MCE_CMD_S_TIMEOUT:
+ /* value is in units of 50us, so x*50/100 or x/2 ms */
+ dev_info(dev, "%s receive timeout of %d ms\n",
+ inout, ((data1 << 8) | data2) / 2);
+ break;
+ case MCE_CMD_G_TIMEOUT:
+ dev_info(dev, "Get receive timeout\n");
+ break;
+ case MCE_CMD_G_TXMASK:
+ dev_info(dev, "Get transmit blaster mask\n");
+ break;
+ case MCE_CMD_S_RXSENSOR:
+ dev_info(dev, "%s %s-range receive sensor in use\n",
+ inout, data1 == 0x02 ? "short" : "long");
+ break;
+ case MCE_CMD_G_RXSENSOR:
+ /* aka MCE_RSP_PULSE_COUNT */
+ if (out)
+ dev_info(dev, "Get receive sensor\n");
+ else if (ir->learning_enabled)
+ dev_info(dev, "RX pulse count: %d\n",
+ ((data1 << 8) | data2));
+ break;
+ case MCE_RSP_CMD_INVALID:
+ dev_info(dev, "Error! Hardware is likely wedged...\n");
+ break;
+ case MCE_CMD_UNKNOWN2:
+ case MCE_CMD_UNKNOWN3:
+ case MCE_CMD_UNKNOWN5:
+ default:
+ dev_info(dev, "Unknown command 0x%02x 0x%02x\n",
+ cmd, subcmd);
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (cmd == MCE_IRDATA_TRAILER)
+ dev_info(dev, "End of raw IR data\n");
+ else if ((cmd != MCE_COMMAND_HEADER) &&
+ ((cmd & MCE_COMMAND_MASK) == MCE_COMMAND_IRDATA))
+ dev_info(dev, "Raw IR data, %d pulse/space samples\n", ir->rem);
+}
+
+static void mce_async_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct mceusb_dev *ir;
+ int len;
+
+ if (!urb)
+ return;
+
+ ir = urb->context;
+ if (ir) {
+ len = urb->actual_length;
+
+ dev_dbg(ir->dev, "callback called (status=%d len=%d)\n",
+ urb->status, len);
+
+ mceusb_dev_printdata(ir, urb->transfer_buffer, 0, len, true);
+ }
+
+}
+
+/* request incoming or send outgoing usb packet - used to initialize remote */
+static void mce_request_packet(struct mceusb_dev *ir,
+ struct usb_endpoint_descriptor *ep,
+ unsigned char *data, int size, int urb_type)
+{
+ int res;
+ struct urb *async_urb;
+ struct device *dev = ir->dev;
+ unsigned char *async_buf;
+
+ if (urb_type == MCEUSB_TX) {
+ async_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (unlikely(!async_urb)) {
+ dev_err(dev, "Error, couldn't allocate urb!\n");
+ return;
+ }
+
+ async_buf = kzalloc(size, GFP_KERNEL);
+ if (!async_buf) {
+ dev_err(dev, "Error, couldn't allocate buf!\n");
+ usb_free_urb(async_urb);
+ return;
+ }
+
+ /* outbound data */
+ usb_fill_int_urb(async_urb, ir->usbdev,
+ usb_sndintpipe(ir->usbdev, ep->bEndpointAddress),
+ async_buf, size, (usb_complete_t)mce_async_callback,
+ ir, ep->bInterval);
+ memcpy(async_buf, data, size);
+
+ } else if (urb_type == MCEUSB_RX) {
+ /* standard request */
+ async_urb = ir->urb_in;
+ ir->send_flags = RECV_FLAG_IN_PROGRESS;
+
+ } else {
+ dev_err(dev, "Error! Unknown urb type %d\n", urb_type);
+ return;
+ }
+
+ dev_dbg(dev, "receive request called (size=%#x)\n", size);
+
+ async_urb->transfer_buffer_length = size;
+ async_urb->dev = ir->usbdev;
+
+ res = usb_submit_urb(async_urb, GFP_ATOMIC);
+ if (res) {
+ dev_dbg(dev, "receive request FAILED! (res=%d)\n", res);
+ return;
+ }
+ dev_dbg(dev, "receive request complete (res=%d)\n", res);
+}
+
+static void mce_async_out(struct mceusb_dev *ir, unsigned char *data, int size)
+{
+ mce_request_packet(ir, ir->usb_ep_out, data, size, MCEUSB_TX);
+}
+
+static void mce_sync_in(struct mceusb_dev *ir, unsigned char *data, int size)
+{
+ mce_request_packet(ir, ir->usb_ep_in, data, size, MCEUSB_RX);
+}
+
+/* Send data out the IR blaster port(s) */
+static int mceusb_tx_ir(struct rc_dev *dev, int *txbuf, u32 n)
+{
+ struct mceusb_dev *ir = dev->priv;
+ int i, ret = 0;
+ int count, cmdcount = 0;
+ unsigned char *cmdbuf; /* MCE command buffer */
+ long signal_duration = 0; /* Singnal length in us */
+ struct timeval start_time, end_time;
+
+ do_gettimeofday(&start_time);
+
+ count = n / sizeof(int);
+
+ cmdbuf = kzalloc(sizeof(int) * MCE_CMDBUF_SIZE, GFP_KERNEL);
+ if (!cmdbuf)
+ return -ENOMEM;
+
+ /* MCE tx init header */
+ cmdbuf[cmdcount++] = MCE_COMMAND_HEADER;
+ cmdbuf[cmdcount++] = MCE_CMD_S_TXMASK;
+ cmdbuf[cmdcount++] = ir->tx_mask;
+
+ /* Generate mce packet data */
+ for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) {
+ signal_duration += txbuf[i];
+ txbuf[i] = txbuf[i] / MCE_TIME_UNIT;
+
+ do { /* loop to support long pulses/spaces > 127*50us=6.35ms */
+
+ /* Insert mce packet header every 4th entry */
+ if ((cmdcount < MCE_CMDBUF_SIZE) &&
+ (cmdcount - MCE_TX_HEADER_LENGTH) %
+ MCE_CODE_LENGTH == 0)
+ cmdbuf[cmdcount++] = MCE_IRDATA_HEADER;
+
+ /* Insert mce packet data */
+ if (cmdcount < MCE_CMDBUF_SIZE)
+ cmdbuf[cmdcount++] =
+ (txbuf[i] < MCE_PULSE_BIT ?
+ txbuf[i] : MCE_MAX_PULSE_LENGTH) |
+ (i & 1 ? 0x00 : MCE_PULSE_BIT);
+ else {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ } while ((txbuf[i] > MCE_MAX_PULSE_LENGTH) &&
+ (txbuf[i] -= MCE_MAX_PULSE_LENGTH));
+ }
+
+ /* Fix packet length in last header */
+ cmdbuf[cmdcount - (cmdcount - MCE_TX_HEADER_LENGTH) % MCE_CODE_LENGTH] =
+ MCE_COMMAND_IRDATA + (cmdcount - MCE_TX_HEADER_LENGTH) %
+ MCE_CODE_LENGTH - 1;
+
+ /* Check if we have room for the empty packet at the end */
+ if (cmdcount >= MCE_CMDBUF_SIZE) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* All mce commands end with an empty packet (0x80) */
+ cmdbuf[cmdcount++] = MCE_IRDATA_TRAILER;
+
+ /* Transmit the command to the mce device */
+ mce_async_out(ir, cmdbuf, cmdcount);
+
+ /*
+ * The lircd gap calculation expects the write function to
+ * wait the time it takes for the ircommand to be sent before
+ * it returns.
+ */
+ do_gettimeofday(&end_time);
+ signal_duration -= (end_time.tv_usec - start_time.tv_usec) +
+ (end_time.tv_sec - start_time.tv_sec) * 1000000;
+
+ /* delay with the closest number of ticks */
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(usecs_to_jiffies(signal_duration));
+
+out:
+ kfree(cmdbuf);
+ return ret ? ret : n;
+}
+
+/* Sets active IR outputs -- mce devices typically have two */
+static int mceusb_set_tx_mask(struct rc_dev *dev, u32 mask)
+{
+ struct mceusb_dev *ir = dev->priv;
+
+ if (ir->flags.tx_mask_normal)
+ ir->tx_mask = mask;
+ else
+ ir->tx_mask = (mask != MCE_DEFAULT_TX_MASK ?
+ mask ^ MCE_DEFAULT_TX_MASK : mask) << 1;
+
+ return 0;
+}
+
+/* Sets the send carrier frequency and mode */
+static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
+{
+ struct mceusb_dev *ir = dev->priv;
+ int clk = 10000000;
+ int prescaler = 0, divisor = 0;
+ unsigned char cmdbuf[4] = { MCE_COMMAND_HEADER,
+ MCE_CMD_S_CARRIER, 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, "%s: disabling carrier "
+ "modulation\n", __func__);
+ mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
+ return carrier;
+ }
+
+ for (prescaler = 0; prescaler < 4; ++prescaler) {
+ divisor = (clk >> (2 * prescaler)) / carrier;
+ if (divisor <= 0xff) {
+ ir->carrier = carrier;
+ cmdbuf[2] = prescaler;
+ cmdbuf[3] = divisor;
+ dev_dbg(ir->dev, "%s: requesting %u HZ "
+ "carrier\n", __func__, carrier);
+
+ /* Transmit new carrier to mce device */
+ mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
+ return carrier;
+ }
+ }
+
+ return -EINVAL;
+
+ }
+
+ return carrier;
+}
+
+/*
+ * We don't do anything but print debug spew for many of the command bits
+ * we receive from the hardware, but some of them are useful information
+ * we want to store so that we can use them.
+ */
+static void mceusb_handle_command(struct mceusb_dev *ir, int index)
+{
+ u8 hi = ir->buf_in[index + 1] & 0xff;
+ u8 lo = ir->buf_in[index + 2] & 0xff;
+
+ switch (ir->buf_in[index]) {
+ /* 2-byte return value commands */
+ case MCE_CMD_S_TIMEOUT:
+ ir->rc->timeout = US_TO_NS((hi << 8 | lo) / 2);
+ break;
+
+ /* 1-byte return value commands */
+ case MCE_CMD_S_TXMASK:
+ ir->tx_mask = hi;
+ break;
+ case MCE_CMD_S_RXSENSOR:
+ ir->learning_enabled = (hi == 0x02);
+ break;
+ default:
+ break;
+ }
+}
+
+static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len)
+{
+ DEFINE_IR_RAW_EVENT(rawir);
+ int i = 0;
+
+ /* skip meaningless 0xb1 0x60 header bytes on orig receiver */
+ if (ir->flags.microsoft_gen1)
+ i = 2;
+
+ /* if there's no data, just return now */
+ if (buf_len <= i)
+ return;
+
+ for (; i < buf_len; i++) {
+ switch (ir->parser_state) {
+ case SUBCMD:
+ ir->rem = mceusb_cmdsize(ir->cmd, ir->buf_in[i]);
+ mceusb_dev_printdata(ir, ir->buf_in, i - 1,
+ ir->rem + 2, false);
+ mceusb_handle_command(ir, i);
+ ir->parser_state = CMD_DATA;
+ break;
+ case PARSE_IRDATA:
+ ir->rem--;
+ init_ir_raw_event(&rawir);
+ rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0);
+ rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK)
+ * US_TO_NS(MCE_TIME_UNIT);
+
+ dev_dbg(ir->dev, "Storing %s with duration %d\n",
+ rawir.pulse ? "pulse" : "space",
+ rawir.duration);
+
+ ir_raw_event_store_with_filter(ir->rc, &rawir);
+ break;
+ case CMD_DATA:
+ ir->rem--;
+ break;
+ case CMD_HEADER:
+ /* decode mce packets of the form (84),AA,BB,CC,DD */
+ /* IR data packets can span USB messages - rem */
+ ir->cmd = ir->buf_in[i];
+ if ((ir->cmd == MCE_COMMAND_HEADER) ||
+ ((ir->cmd & MCE_COMMAND_MASK) !=
+ MCE_COMMAND_IRDATA)) {
+ ir->parser_state = SUBCMD;
+ continue;
+ }
+ ir->rem = (ir->cmd & MCE_PACKET_LENGTH_MASK);
+ mceusb_dev_printdata(ir, ir->buf_in,
+ i, ir->rem + 1, false);
+ if (ir->rem)
+ ir->parser_state = PARSE_IRDATA;
+ else
+ ir_raw_event_reset(ir->rc);
+ break;
+ }
+
+ if (ir->parser_state != CMD_HEADER && !ir->rem)
+ ir->parser_state = CMD_HEADER;
+ }
+ dev_dbg(ir->dev, "processed IR data, calling ir_raw_event_handle\n");
+ ir_raw_event_handle(ir->rc);
+}
+
+static void mceusb_dev_recv(struct urb *urb, struct pt_regs *regs)
+{
+ struct mceusb_dev *ir;
+ int buf_len;
+
+ if (!urb)
+ return;
+
+ ir = urb->context;
+ if (!ir) {
+ usb_unlink_urb(urb);
+ return;
+ }
+
+ buf_len = urb->actual_length;
+
+ if (ir->send_flags == RECV_FLAG_IN_PROGRESS) {
+ ir->send_flags = SEND_FLAG_COMPLETE;
+ dev_dbg(ir->dev, "setup answer received %d bytes\n",
+ buf_len);
+ }
+
+ switch (urb->status) {
+ /* success */
+ case 0:
+ mceusb_process_ir_data(ir, buf_len);
+ break;
+
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ usb_unlink_urb(urb);
+ return;
+
+ case -EPIPE:
+ default:
+ dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
+ break;
+ }
+
+ usb_submit_urb(urb, GFP_ATOMIC);
+}
+
+static void mceusb_gen1_init(struct mceusb_dev *ir)
+{
+ int ret;
+ int maxp = ir->len_in;
+ struct device *dev = ir->dev;
+ char *data;
+
+ data = kzalloc(USB_CTRL_MSG_SZ, GFP_KERNEL);
+ if (!data) {
+ dev_err(dev, "%s: memory allocation failed!\n", __func__);
+ return;
+ }
+
+ /*
+ * This is a strange one. Windows issues a set address to the device
+ * on the receive control pipe and expect a certain value pair back
+ */
+ ret = usb_control_msg(ir->usbdev, usb_rcvctrlpipe(ir->usbdev, 0),
+ USB_REQ_SET_ADDRESS, USB_TYPE_VENDOR, 0, 0,
+ data, USB_CTRL_MSG_SZ, HZ * 3);
+ dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
+ dev_dbg(dev, "%s - data[0] = %d, data[1] = %d\n",
+ __func__, data[0], data[1]);
+
+ /* set feature: bit rate 38400 bps */
+ ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
+ USB_REQ_SET_FEATURE, USB_TYPE_VENDOR,
+ 0xc04e, 0x0000, NULL, 0, HZ * 3);
+
+ dev_dbg(dev, "%s - ret = %d\n", __func__, ret);
+
+ /* bRequest 4: set char length to 8 bits */
+ ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
+ 4, USB_TYPE_VENDOR,
+ 0x0808, 0x0000, NULL, 0, HZ * 3);
+ dev_dbg(dev, "%s - retB = %d\n", __func__, ret);
+
+ /* bRequest 2: set handshaking to use DTR/DSR */
+ ret = usb_control_msg(ir->usbdev, usb_sndctrlpipe(ir->usbdev, 0),
+ 2, USB_TYPE_VENDOR,
+ 0x0000, 0x0100, NULL, 0, HZ * 3);
+ dev_dbg(dev, "%s - retC = %d\n", __func__, ret);
+
+ /* device reset */
+ mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
+ mce_sync_in(ir, NULL, maxp);
+
+ /* get hw/sw revision? */
+ mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
+ mce_sync_in(ir, NULL, maxp);
+
+ kfree(data);
+};
+
+static void mceusb_gen2_init(struct mceusb_dev *ir)
+{
+ int maxp = ir->len_in;
+
+ /* device reset */
+ mce_async_out(ir, DEVICE_RESET, sizeof(DEVICE_RESET));
+ mce_sync_in(ir, NULL, maxp);
+
+ /* get hw/sw revision? */
+ mce_async_out(ir, GET_REVISION, sizeof(GET_REVISION));
+ mce_sync_in(ir, NULL, maxp);
+
+ /* unknown what the next two actually return... */
+ mce_async_out(ir, GET_UNKNOWN, sizeof(GET_UNKNOWN));
+ mce_sync_in(ir, NULL, maxp);
+ mce_async_out(ir, GET_UNKNOWN2, sizeof(GET_UNKNOWN2));
+ mce_sync_in(ir, NULL, maxp);
+}
+
+static void mceusb_get_parameters(struct mceusb_dev *ir)
+{
+ int maxp = ir->len_in;
+
+ /* get the carrier and frequency */
+ mce_async_out(ir, GET_CARRIER_FREQ, sizeof(GET_CARRIER_FREQ));
+ mce_sync_in(ir, NULL, maxp);
+
+ if (!ir->flags.no_tx) {
+ /* get the transmitter bitmask */
+ mce_async_out(ir, GET_TX_BITMASK, sizeof(GET_TX_BITMASK));
+ mce_sync_in(ir, NULL, maxp);
+ }
+
+ /* get receiver timeout value */
+ mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
+ mce_sync_in(ir, NULL, maxp);
+
+ /* get receiver sensor setting */
+ mce_async_out(ir, GET_RX_SENSOR, sizeof(GET_RX_SENSOR));
+ mce_sync_in(ir, NULL, maxp);
+}
+
+static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
+{
+ struct device *dev = ir->dev;
+ struct rc_dev *rc;
+ int ret;
+
+ rc = rc_allocate_device();
+ if (!rc) {
+ dev_err(dev, "remote dev allocation failed\n");
+ goto out;
+ }
+
+ snprintf(ir->name, sizeof(ir->name), "%s (%04x:%04x)",
+ mceusb_model[ir->model].name ?
+ mceusb_model[ir->model].name :
+ "Media Center Ed. eHome Infrared Remote Transceiver",
+ le16_to_cpu(ir->usbdev->descriptor.idVendor),
+ le16_to_cpu(ir->usbdev->descriptor.idProduct));
+
+ usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys));
+
+ rc->input_name = ir->name;
+ rc->input_phys = ir->phys;
+ usb_to_input_id(ir->usbdev, &rc->input_id);
+ rc->dev.parent = dev;
+ rc->priv = ir;
+ rc->driver_type = RC_DRIVER_IR_RAW;
+ rc->allowed_protos = RC_TYPE_ALL;
+ rc->timeout = US_TO_NS(1000);
+ if (!ir->flags.no_tx) {
+ rc->s_tx_mask = mceusb_set_tx_mask;
+ rc->s_tx_carrier = mceusb_set_tx_carrier;
+ rc->tx_ir = mceusb_tx_ir;
+ }
+ rc->driver_name = DRIVER_NAME;
+ rc->map_name = mceusb_model[ir->model].rc_map ?
+ mceusb_model[ir->model].rc_map : RC_MAP_RC6_MCE;
+
+ ret = rc_register_device(rc);
+ if (ret < 0) {
+ dev_err(dev, "remote dev registration failed\n");
+ goto out;
+ }
+
+ return rc;
+
+out:
+ rc_free_device(rc);
+ return NULL;
+}
+
+static int __devinit mceusb_dev_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct usb_host_interface *idesc;
+ struct usb_endpoint_descriptor *ep = NULL;
+ struct usb_endpoint_descriptor *ep_in = NULL;
+ struct usb_endpoint_descriptor *ep_out = NULL;
+ struct mceusb_dev *ir = NULL;
+ int pipe, maxp, i;
+ char buf[63], name[128] = "";
+ enum mceusb_model_type model = id->driver_info;
+ bool is_gen3;
+ bool is_microsoft_gen1;
+ bool tx_mask_normal;
+ int ir_intfnum;
+
+ dev_dbg(&intf->dev, "%s called\n", __func__);
+
+ idesc = intf->cur_altsetting;
+
+ is_gen3 = mceusb_model[model].mce_gen3;
+ is_microsoft_gen1 = mceusb_model[model].mce_gen1;
+ tx_mask_normal = mceusb_model[model].tx_mask_normal;
+ ir_intfnum = mceusb_model[model].ir_intfnum;
+
+ /* There are multi-function devices with non-IR interfaces */
+ if (idesc->desc.bInterfaceNumber != ir_intfnum)
+ return -ENODEV;
+
+ /* step through the endpoints to find first bulk in and out endpoint */
+ for (i = 0; i < idesc->desc.bNumEndpoints; ++i) {
+ ep = &idesc->endpoint[i].desc;
+
+ if ((ep_in == NULL)
+ && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+ == USB_DIR_IN)
+ && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ == USB_ENDPOINT_XFER_BULK)
+ || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ == USB_ENDPOINT_XFER_INT))) {
+
+ ep_in = ep;
+ ep_in->bmAttributes = USB_ENDPOINT_XFER_INT;
+ ep_in->bInterval = 1;
+ dev_dbg(&intf->dev, "acceptable inbound endpoint "
+ "found\n");
+ }
+
+ if ((ep_out == NULL)
+ && ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+ == USB_DIR_OUT)
+ && (((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ == USB_ENDPOINT_XFER_BULK)
+ || ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ == USB_ENDPOINT_XFER_INT))) {
+
+ ep_out = ep;
+ ep_out->bmAttributes = USB_ENDPOINT_XFER_INT;
+ ep_out->bInterval = 1;
+ dev_dbg(&intf->dev, "acceptable outbound endpoint "
+ "found\n");
+ }
+ }
+ if (ep_in == NULL) {
+ dev_dbg(&intf->dev, "inbound and/or endpoint not found\n");
+ return -ENODEV;
+ }
+
+ pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress);
+ maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
+
+ ir = kzalloc(sizeof(struct mceusb_dev), GFP_KERNEL);
+ if (!ir)
+ goto mem_alloc_fail;
+
+ ir->buf_in = usb_alloc_coherent(dev, maxp, GFP_ATOMIC, &ir->dma_in);
+ if (!ir->buf_in)
+ goto buf_in_alloc_fail;
+
+ ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
+ if (!ir->urb_in)
+ goto urb_in_alloc_fail;
+
+ ir->usbdev = dev;
+ ir->dev = &intf->dev;
+ ir->len_in = maxp;
+ ir->flags.microsoft_gen1 = is_microsoft_gen1;
+ ir->flags.tx_mask_normal = tx_mask_normal;
+ ir->flags.no_tx = mceusb_model[model].no_tx;
+ ir->model = model;
+
+ /* Saving usb interface data for use by the transmitter routine */
+ ir->usb_ep_in = ep_in;
+ ir->usb_ep_out = ep_out;
+
+ if (dev->descriptor.iManufacturer
+ && usb_string(dev, dev->descriptor.iManufacturer,
+ buf, sizeof(buf)) > 0)
+ strlcpy(name, buf, sizeof(name));
+ if (dev->descriptor.iProduct
+ && usb_string(dev, dev->descriptor.iProduct,
+ buf, sizeof(buf)) > 0)
+ snprintf(name + strlen(name), sizeof(name) - strlen(name),
+ " %s", buf);
+
+ ir->rc = mceusb_init_rc_dev(ir);
+ if (!ir->rc)
+ goto rc_dev_fail;
+
+ /* flush buffers on the device */
+ mce_sync_in(ir, NULL, maxp);
+ mce_sync_in(ir, NULL, maxp);
+
+ /* wire up inbound data handler */
+ usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in,
+ maxp, (usb_complete_t) mceusb_dev_recv, ir, ep_in->bInterval);
+ ir->urb_in->transfer_dma = ir->dma_in;
+ ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* initialize device */
+ if (ir->flags.microsoft_gen1)
+ mceusb_gen1_init(ir);
+ else if (!is_gen3)
+ mceusb_gen2_init(ir);
+
+ mceusb_get_parameters(ir);
+
+ if (!ir->flags.no_tx)
+ mceusb_set_tx_mask(ir->rc, MCE_DEFAULT_TX_MASK);
+
+ usb_set_intfdata(intf, ir);
+
+ dev_info(&intf->dev, "Registered %s on usb%d:%d\n", name,
+ dev->bus->busnum, dev->devnum);
+
+ return 0;
+
+ /* Error-handling path */
+rc_dev_fail:
+ usb_free_urb(ir->urb_in);
+urb_in_alloc_fail:
+ usb_free_coherent(dev, maxp, ir->buf_in, ir->dma_in);
+buf_in_alloc_fail:
+ kfree(ir);
+mem_alloc_fail:
+ dev_err(&intf->dev, "%s: device setup failed!\n", __func__);
+
+ return -ENOMEM;
+}
+
+
+static void __devexit mceusb_dev_disconnect(struct usb_interface *intf)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct mceusb_dev *ir = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+
+ if (!ir)
+ return;
+
+ ir->usbdev = NULL;
+ rc_unregister_device(ir->rc);
+ usb_kill_urb(ir->urb_in);
+ usb_free_urb(ir->urb_in);
+ usb_free_coherent(dev, ir->len_in, ir->buf_in, ir->dma_in);
+
+ kfree(ir);
+}
+
+static int mceusb_dev_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct mceusb_dev *ir = usb_get_intfdata(intf);
+ dev_info(ir->dev, "suspend\n");
+ usb_kill_urb(ir->urb_in);
+ return 0;
+}
+
+static int mceusb_dev_resume(struct usb_interface *intf)
+{
+ struct mceusb_dev *ir = usb_get_intfdata(intf);
+ dev_info(ir->dev, "resume\n");
+ if (usb_submit_urb(ir->urb_in, GFP_ATOMIC))
+ return -EIO;
+ return 0;
+}
+
+static struct usb_driver mceusb_dev_driver = {
+ .name = DRIVER_NAME,
+ .probe = mceusb_dev_probe,
+ .disconnect = mceusb_dev_disconnect,
+ .suspend = mceusb_dev_suspend,
+ .resume = mceusb_dev_resume,
+ .reset_resume = mceusb_dev_resume,
+ .id_table = mceusb_dev_table
+};
+
+static int __init mceusb_dev_init(void)
+{
+ int ret;
+
+ ret = usb_register(&mceusb_dev_driver);
+ if (ret < 0)
+ printk(KERN_ERR DRIVER_NAME
+ ": usb register failed, result = %d\n", ret);
+
+ return ret;
+}
+
+static void __exit mceusb_dev_exit(void)
+{
+ usb_deregister(&mceusb_dev_driver);
+}
+
+module_init(mceusb_dev_init);
+module_exit(mceusb_dev_exit);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(usb, mceusb_dev_table);
+
+module_param(debug, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug enabled or not");
projects / mv-sheeva.git / blobdiff