diff options
Diffstat (limited to 'drivers/media/IR/mceusb.c')
| -rw-r--r-- | drivers/media/IR/mceusb.c | 1143 |
1 files changed, 0 insertions, 1143 deletions
diff --git a/drivers/media/IR/mceusb.c b/drivers/media/IR/mceusb.c deleted file mode 100644 index 78bf7f77a1a..00000000000 --- a/drivers/media/IR/mceusb.c +++ /dev/null @@ -1,1143 +0,0 @@ -/* - * 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/input.h> -#include <media/ir-core.h> -#include <media/ir-common.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_PACKET_HEADER 0x84 /* Actual header format is 0x80 + num_bytes */ -#define MCE_CONTROL_HEADER 0x9F /* MCE status header */ -#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 /* Val opts: 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_PACKET_LENGTH_MASK 0x1F /* Packet length mask */ - - -/* 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 - -static struct usb_device_id mceusb_dev_table[] = { - /* Original Microsoft MCE IR Transceiver (often HP-branded) */ - { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) }, - /* Philips Infrared Transceiver - Sahara branded */ - { USB_DEVICE(VENDOR_PHILIPS, 0x0608) }, - /* Philips Infrared Transceiver - HP branded */ - { USB_DEVICE(VENDOR_PHILIPS, 0x060c) }, - /* 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) }, - /* Realtek MCE IR Receiver */ - { USB_DEVICE(VENDOR_REALTEK, 0x0161) }, - /* SMK/Toshiba G83C0004D410 */ - { USB_DEVICE(VENDOR_SMK, 0x031d) }, - /* SMK eHome Infrared Transceiver (Sony VAIO) */ - { USB_DEVICE(VENDOR_SMK, 0x0322) }, - /* bundled with Hauppauge PVR-150 */ - { USB_DEVICE(VENDOR_SMK, 0x0334) }, - /* 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) }, - /* Topseed HP eHome Infrared Transceiver */ - { USB_DEVICE(VENDOR_TOPSEED, 0x0006) }, - /* Topseed eHome Infrared Transceiver */ - { USB_DEVICE(VENDOR_TOPSEED, 0x0007) }, - /* Topseed eHome Infrared Transceiver */ - { USB_DEVICE(VENDOR_TOPSEED, 0x0008) }, - /* Topseed eHome Infrared Transceiver */ - { USB_DEVICE(VENDOR_TOPSEED, 0x000a) }, - /* Topseed eHome Infrared Transceiver */ - { USB_DEVICE(VENDOR_TOPSEED, 0x0011) }, - /* 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 */ - { 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) }, - /* 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) }, - /* Terminating entry */ - { } -}; - -static struct usb_device_id gen3_list[] = { - { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, - { USB_DEVICE(VENDOR_TOPSEED, 0x0008) }, - {} -}; - -static struct usb_device_id microsoft_gen1_list[] = { - { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) }, - {} -}; - -static struct usb_device_id std_tx_mask_list[] = { - { USB_DEVICE(VENDOR_MICROSOFT, 0x006d) }, - { USB_DEVICE(VENDOR_PHILIPS, 0x060c) }, - { USB_DEVICE(VENDOR_SMK, 0x031d) }, - { USB_DEVICE(VENDOR_SMK, 0x0322) }, - { USB_DEVICE(VENDOR_SMK, 0x0334) }, - { USB_DEVICE(VENDOR_TOPSEED, 0x0001) }, - { USB_DEVICE(VENDOR_TOPSEED, 0x0006) }, - { USB_DEVICE(VENDOR_TOPSEED, 0x0007) }, - { USB_DEVICE(VENDOR_TOPSEED, 0x0008) }, - { USB_DEVICE(VENDOR_TOPSEED, 0x000a) }, - { USB_DEVICE(VENDOR_TOPSEED, 0x0011) }, - { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, - {} -}; - -/* data structure for each usb transceiver */ -struct mceusb_dev { - /* ir-core bits */ - struct ir_input_dev *irdev; - struct ir_dev_props *props; - struct ir_raw_event rawir; - - /* core device bits */ - struct device *dev; - struct input_dev *idev; - - /* 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; - u8 cmd; /* MCE command type */ - u8 rem; /* Remaining IR data bytes in packet */ - dma_addr_t dma_in; - dma_addr_t dma_out; - - struct { - u32 connected:1; - u32 tx_mask_inverted:1; - u32 microsoft_gen1:1; - u32 reserved:29; - } flags; - - /* transmit support */ - int send_flags; - u32 carrier; - unsigned char tx_mask; - - char name[128]; - char phys[64]; -}; - -/* - * 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[] = {0x00, 0xff, 0xaa}; -static char GET_REVISION[] = {0xff, 0x0b}; -static char GET_UNKNOWN[] = {0xff, 0x18}; -static char GET_UNKNOWN2[] = {0x9f, 0x05}; -static char GET_CARRIER_FREQ[] = {0x9f, 0x07}; -static char GET_RX_TIMEOUT[] = {0x9f, 0x0d}; -static char GET_TX_BITMASK[] = {0x9f, 0x13}; -static char GET_RX_SENSOR[] = {0x9f, 0x15}; -/* sub in desired values in lower byte or bytes for full command */ -/* FIXME: make use of these for transmit. -static char SET_CARRIER_FREQ[] = {0x9f, 0x06, 0x00, 0x00}; -static char SET_TX_BITMASK[] = {0x9f, 0x08, 0x00}; -static char SET_RX_TIMEOUT[] = {0x9f, 0x0c, 0x00, 0x00}; -static char SET_RX_SENSOR[] = {0x9f, 0x14, 0x00}; -*/ - -static void mceusb_dev_printdata(struct mceusb_dev *ir, char *buf, - int len, bool out) -{ - char codes[USB_BUFLEN * 3 + 1]; - char inout[9]; - int i; - u8 cmd, subcmd, data1, data2; - struct device *dev = ir->dev; - int idx = 0; - - /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ - if (ir->flags.microsoft_gen1 && !out) - idx = 2; - - if (len <= idx) - return; - - for (i = 0; i < len && i < USB_BUFLEN; i++) - snprintf(codes + i * 3, 4, "%02x ", buf[i] & 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"); - - cmd = buf[idx] & 0xff; - subcmd = buf[idx + 1] & 0xff; - data1 = buf[idx + 2] & 0xff; - data2 = buf[idx + 3] & 0xff; - - switch (cmd) { - case 0x00: - if (subcmd == 0xff && data1 == 0xaa) - dev_info(dev, "Device reset requested\n"); - else - dev_info(dev, "Unknown command 0x%02x 0x%02x\n", - cmd, subcmd); - break; - case 0xff: - switch (subcmd) { - case 0x0b: - 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[idx + 4], buf[idx + 5]); - break; - case 0xaa: - dev_info(dev, "Device reset requested\n"); - break; - case 0xfe: - dev_info(dev, "Previous command not supported\n"); - break; - case 0x18: - case 0x1b: - default: - dev_info(dev, "Unknown command 0x%02x 0x%02x\n", - cmd, subcmd); - break; - } - break; - case 0x9f: - switch (subcmd) { - case 0x03: - dev_info(dev, "Ping\n"); - break; - case 0x04: - dev_info(dev, "Resp to 9f 05 of 0x%02x 0x%02x\n", - data1, data2); - break; - case 0x06: - dev_info(dev, "%s carrier mode and freq of " - "0x%02x 0x%02x\n", inout, data1, data2); - break; - case 0x07: - dev_info(dev, "Get carrier mode and freq\n"); - break; - case 0x08: - dev_info(dev, "%s transmit blaster mask of 0x%02x\n", - inout, data1); - break; - case 0x0c: - /* 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 0x0d: - dev_info(dev, "Get receive timeout\n"); - break; - case 0x13: - dev_info(dev, "Get transmit blaster mask\n"); - break; - case 0x14: - dev_info(dev, "%s %s-range receive sensor in use\n", - inout, data1 == 0x02 ? "short" : "long"); - break; - case 0x15: - if (len == 2) - dev_info(dev, "Get receive sensor\n"); - else - dev_info(dev, "Received pulse count is %d\n", - ((data1 << 8) | data2)); - break; - case 0xfe: - dev_info(dev, "Error! Hardware is likely wedged...\n"); - break; - case 0x05: - case 0x09: - case 0x0f: - default: - dev_info(dev, "Unknown command 0x%02x 0x%02x\n", - cmd, subcmd); - break; - } - break; - default: - break; - } -} - -static void usb_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); - - if (debug) - mceusb_dev_printdata(ir, urb->transfer_buffer, - 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) usb_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(void *priv, int *txbuf, u32 n) -{ - struct mceusb_dev *ir = 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_CONTROL_HEADER; - cmdbuf[cmdcount++] = 0x08; - 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_PACKET_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] = - 0x80 + (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++] = 0x80; - - /* 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 (all?) have two */ -static int mceusb_set_tx_mask(void *priv, u32 mask) -{ - struct mceusb_dev *ir = priv; - - if (ir->flags.tx_mask_inverted) - ir->tx_mask = (mask != 0x03 ? mask ^ 0x03 : mask) << 1; - else - ir->tx_mask = mask; - - return 0; -} - -/* Sets the send carrier frequency and mode */ -static int mceusb_set_tx_carrier(void *priv, u32 carrier) -{ - struct mceusb_dev *ir = priv; - int clk = 10000000; - int prescaler = 0, divisor = 0; - unsigned char cmdbuf[4] = { 0x9f, 0x06, 0x00, 0x00 }; - - /* Carrier has changed */ - if (ir->carrier != carrier) { - - if (carrier == 0) { - ir->carrier = carrier; - cmdbuf[2] = 0x01; - cmdbuf[3] = 0x80; - 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; -} - -static void mceusb_process_ir_data(struct mceusb_dev *ir, int buf_len) -{ - struct ir_raw_event rawir = { .pulse = false, .duration = 0 }; - int i, start_index = 0; - u8 hdr = MCE_CONTROL_HEADER; - - /* skip meaningless 0xb1 0x60 header bytes on orig receiver */ - if (ir->flags.microsoft_gen1) - start_index = 2; - - for (i = start_index; i < buf_len;) { - if (ir->rem == 0) { - /* decode mce packets of the form (84),AA,BB,CC,DD */ - /* IR data packets can span USB messages - rem */ - hdr = ir->buf_in[i]; - ir->rem = (hdr & MCE_PACKET_LENGTH_MASK); - ir->cmd = (hdr & ~MCE_PACKET_LENGTH_MASK); - dev_dbg(ir->dev, "New data. rem: 0x%02x, cmd: 0x%02x\n", - ir->rem, ir->cmd); - i++; - } - - /* don't process MCE commands */ - if (hdr == MCE_CONTROL_HEADER || hdr == 0xff) { - ir->rem = 0; - return; - } - - for (; (ir->rem > 0) && (i < buf_len); i++) { - ir->rem--; - - rawir.pulse = ((ir->buf_in[i] & MCE_PULSE_BIT) != 0); - rawir.duration = (ir->buf_in[i] & MCE_PULSE_MASK) - * MCE_TIME_UNIT * 1000; - - if ((ir->buf_in[i] & MCE_PULSE_MASK) == 0x7f) { - if (ir->rawir.pulse == rawir.pulse) - ir->rawir.duration += rawir.duration; - else { - ir->rawir.duration = rawir.duration; - ir->rawir.pulse = rawir.pulse; - } - continue; - } - rawir.duration += ir->rawir.duration; - ir->rawir.duration = 0; - ir->rawir.pulse = rawir.pulse; - - dev_dbg(ir->dev, "Storing %s with duration %d\n", - rawir.pulse ? "pulse" : "space", - rawir.duration); - - ir_raw_event_store(ir->idev, &rawir); - } - - if (ir->buf_in[i] == 0x80 || ir->buf_in[i] == 0x9f) - ir->rem = 0; - - dev_dbg(ir->dev, "calling ir_raw_event_handle\n"); - ir_raw_event_handle(ir->idev); - } -} - -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 (debug) - mceusb_dev_printdata(ir, urb->transfer_buffer, buf_len, false); - - if (ir->send_flags == RECV_FLAG_IN_PROGRESS) { - ir->send_flags = SEND_FLAG_COMPLETE; - dev_dbg(&ir->irdev->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: - 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); - - /* 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 input_dev *mceusb_init_input_dev(struct mceusb_dev *ir) -{ - struct input_dev *idev; - struct ir_dev_props *props; - struct ir_input_dev *irdev; - struct device *dev = ir->dev; - int ret = -ENODEV; - - idev = input_allocate_device(); - if (!idev) { - dev_err(dev, "remote input dev allocation failed\n"); - goto idev_alloc_failed; - } - - ret = -ENOMEM; - props = kzalloc(sizeof(struct ir_dev_props), GFP_KERNEL); - if (!props) { - dev_err(dev, "remote ir dev props allocation failed\n"); - goto props_alloc_failed; - } - - irdev = kzalloc(sizeof(struct ir_input_dev), GFP_KERNEL); - if (!irdev) { - dev_err(dev, "remote ir input dev allocation failed\n"); - goto ir_dev_alloc_failed; - } - - snprintf(ir->name, sizeof(ir->name), "Media Center Ed. eHome " - "Infrared Remote Transceiver (%04x:%04x)", - le16_to_cpu(ir->usbdev->descriptor.idVendor), - le16_to_cpu(ir->usbdev->descriptor.idProduct)); - - idev->name = ir->name; - usb_make_path(ir->usbdev, ir->phys, sizeof(ir->phys)); - strlcat(ir->phys, "/input0", sizeof(ir->phys)); - idev->phys = ir->phys; - - props->priv = ir; - props->driver_type = RC_DRIVER_IR_RAW; - props->allowed_protos = IR_TYPE_ALL; - props->s_tx_mask = mceusb_set_tx_mask; - props->s_tx_carrier = mceusb_set_tx_carrier; - props->tx_ir = mceusb_tx_ir; - - ir->props = props; - ir->irdev = irdev; - - input_set_drvdata(idev, irdev); - - ret = ir_input_register(idev, RC_MAP_RC6_MCE, props, DRIVER_NAME); - if (ret < 0) { - dev_err(dev, "remote input device register failed\n"); - goto irdev_failed; - } - - return idev; - -irdev_failed: - kfree(irdev); -ir_dev_alloc_failed: - kfree(props); -props_alloc_failed: - input_free_device(idev); -idev_alloc_failed: - 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 usb_host_config *config; - struct mceusb_dev *ir = NULL; - int pipe, maxp, i; - char buf[63], name[128] = ""; - bool is_gen3; - bool is_microsoft_gen1; - bool tx_mask_inverted; - - dev_dbg(&intf->dev, ": %s called\n", __func__); - - config = dev->actconfig; - idesc = intf->cur_altsetting; - - is_gen3 = usb_match_id(intf, gen3_list) ? 1 : 0; - is_microsoft_gen1 = usb_match_id(intf, microsoft_gen1_list) ? 1 : 0; - tx_mask_inverted = usb_match_id(intf, std_tx_mask_list) ? 0 : 1; - - /* 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_inverted = tx_mask_inverted; - - /* 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->idev = mceusb_init_input_dev(ir); - if (!ir->idev) - goto input_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); - - mceusb_set_tx_mask(ir, 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 */ -input_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; - ir_input_unregister(ir->idev); - 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"); |