From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755346AbYIIEJK (ORCPT ); Tue, 9 Sep 2008 00:09:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753703AbYIIEIJ (ORCPT ); Tue, 9 Sep 2008 00:08:09 -0400 Received: from mx2.redhat.com ([66.187.237.31]:42573 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751029AbYIIEH6 (ORCPT ); Tue, 9 Sep 2008 00:07:58 -0400 From: Jarod Wilson To: linux-kernel@vger.kernel.org Cc: Jarod Wilson , Jarod Wilson , Janne Grunau , Christoph Bartelmus Subject: [PATCH 04/18] lirc driver for 2nd-gen and later Media Center Ed. USB IR transceivers Date: Tue, 9 Sep 2008 00:05:49 -0400 Message-Id: <1220933164-10160-5-git-send-email-jwilson@redhat.com> In-Reply-To: <1220933164-10160-4-git-send-email-jwilson@redhat.com> References: <1220933164-10160-1-git-send-email-jwilson@redhat.com> <1220933164-10160-2-git-send-email-jwilson@redhat.com> <1220933164-10160-3-git-send-email-jwilson@redhat.com> <1220933164-10160-4-git-send-email-jwilson@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Successfully tested with the mce v2 receiver and remote that shipped with my Hauppauge HVR-1500 expresscard tuner. Signed-off-by: Jarod Wilson Signed-off-by: Janne Grunau CC: Christoph Bartelmus Tested-by: Jarod Wilson --- drivers/input/lirc/Kconfig | 7 + drivers/input/lirc/Makefile | 1 + drivers/input/lirc/lirc_mceusb2.c | 1119 +++++++++++++++++++++++++++++++++++++ 3 files changed, 1127 insertions(+), 0 deletions(-) create mode 100644 drivers/input/lirc/lirc_mceusb2.c diff --git a/drivers/input/lirc/Kconfig b/drivers/input/lirc/Kconfig index 7dbf1a5..0a0b059 100644 --- a/drivers/input/lirc/Kconfig +++ b/drivers/input/lirc/Kconfig @@ -25,6 +25,13 @@ config LIRC_MCEUSB help Driver for the Microsoft Media Center Ed. Receiver, v1 +config LIRC_MCEUSB2 + tristate "Microsoft Media Center Ed. Receiver, v2" + default n + depends on LIRC_DEV + help + Driver for the Microsoft Media Center Ed. Receiver, v2 + config LIRC_SERIAL tristate "Homebrew Serial Port Receiver" default n diff --git a/drivers/input/lirc/Makefile b/drivers/input/lirc/Makefile index fafdd25..f6accb9 100644 --- a/drivers/input/lirc/Makefile +++ b/drivers/input/lirc/Makefile @@ -7,4 +7,5 @@ EXTRA_CFLAGS =-DIRCTL_DEV_MAJOR=61 -DLIRC_SERIAL_TRANSMITTER -I$(src) obj-$(CONFIG_LIRC_DEV) += lirc_dev.o obj-$(CONFIG_LIRC_MCEUSB) += lirc_mceusb.o +obj-$(CONFIG_LIRC_MCEUSB2) += lirc_mceusb2.o obj-$(CONFIG_LIRC_SERIAL) += lirc_serial.o diff --git a/drivers/input/lirc/lirc_mceusb2.c b/drivers/input/lirc/lirc_mceusb2.c new file mode 100644 index 0000000..1e683d3 --- /dev/null +++ b/drivers/input/lirc/lirc_mceusb2.c @@ -0,0 +1,1119 @@ +/* + * LIRC driver for Philips eHome USB Infrared Transceiver + * and the Microsoft MCE 2005 Remote Control + * + * (C) by Martin A. Blatter + * + * Transmitter support and reception code cleanup. + * (C) by Daniel Melander + * + * Derived from ATI USB driver by Paul Miller and the original + * MCE USB driver by Dan Corti + * + * This driver will only work reliably with kernel version 2.6.10 + * or higher, probably because of differences in USB device enumeration + * in the kernel code. Device initialization fails most of the time + * with earlier kernel versions. + * + ********************************************************************** + * + * 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 + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "lirc.h" +#include "lirc_dev.h" + +#define DRIVER_VERSION "1.48" +#define DRIVER_AUTHOR "Daniel Melander , " \ + "Martin Blatter " +#define DRIVER_DESC "Philips eHome USB IR Transceiver and Microsoft " \ + "MCE 2005 Remote Control driver for LIRC" +#define DRIVER_NAME "lirc_mceusb2" + +#define USB_BUFLEN 16 /* USB reception buffer length */ +#define LIRCBUF_SIZE 256 /* LIRC work buffer length */ + +/* 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 0x7F /* Pulse mask */ + + +/* module parameters */ +#ifdef CONFIG_USB_DEBUG +static int debug = 1; +#else +static int debug; +#endif +#define dprintk(fmt, args...) \ + do { \ + if (debug) \ + printk(KERN_DEBUG fmt, ## args); \ + } while (0) + +/* lock irctl structure */ +#define IRLOCK mutex_lock(&ir->lock) +#define IRUNLOCK mutex_unlock(&ir->lock) + +/* general constants */ +#define SUCCESS 0 +#define SEND_FLAG_IN_PROGRESS 1 +#define SEND_FLAG_COMPLETE 2 +#define RECV_FLAG_IN_PROGRESS 3 +#define RECV_FLAG_COMPLETE 4 + +#define PHILUSB_INBOUND 1 +#define PHILUSB_OUTBOUND 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 + +static struct usb_device_id usb_remote_table[] = { + /* Philips eHome Infrared Transceiver */ + { USB_DEVICE(VENDOR_PHILIPS, 0x0815) }, + /* 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) }, + /* 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) }, + /* 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) }, + /* 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) }, + /* Fintek eHome Infrared Transceiver */ + { USB_DEVICE(VENDOR_FINTEK, 0x0602) }, + /* Pinnacle Remote Kit */ + { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, + /* Terminating entry */ + { } +}; + +static struct usb_device_id pinnacle_list[] = { + { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, + {} +}; + +static struct usb_device_id transmitter_mask_list[] = { + { USB_DEVICE(VENDOR_SMK, 0x031d) }, + { USB_DEVICE(VENDOR_SMK, 0x0322) }, + { USB_DEVICE(VENDOR_SMK, 0x0334) }, + { USB_DEVICE(VENDOR_TOPSEED, 0x0001) }, + { USB_DEVICE(VENDOR_TOPSEED, 0x0007) }, + { USB_DEVICE(VENDOR_TOPSEED, 0x0008) }, + { USB_DEVICE(VENDOR_PINNACLE, 0x0225) }, + {} +}; + +/* data structure for each usb remote */ +struct irctl { + + /* usb */ + struct usb_device *usbdev; + struct urb *urb_in; + int devnum; + 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; + + /* lirc */ + struct lirc_plugin *p; + int lircdata; + unsigned char is_pulse; + struct { + u32 connected:1; + u32 pinnacle:1; + u32 transmitter_mask_inverted:1; + u32 reserved:29; + } flags; + + unsigned char transmitter_mask; + unsigned int carrier_freq; + + /* handle sending (init strings) */ + int send_flags; + wait_queue_head_t wait_out; + + struct mutex lock; +}; + +/* init strings */ +static char init1[] = {0x00, 0xff, 0xaa, 0xff, 0x0b}; +static char init2[] = {0xff, 0x18}; + +static char pin_init1[] = { 0x9f, 0x07}; +static char pin_init2[] = { 0x9f, 0x13}; +static char pin_init3[] = { 0x9f, 0x0d}; + +static void usb_remote_printdata(struct irctl *ir, char *buf, int len) +{ + char codes[USB_BUFLEN*3 + 1]; + int i; + + if (len <= 0) + return; + + for (i = 0; i < len && i < USB_BUFLEN; i++) + snprintf(codes+i*3, 4, "%02x ", buf[i] & 0xFF); + + printk(KERN_INFO "" DRIVER_NAME "[%d]: data received %s (length=%d)\n", + ir->devnum, codes, len); +} + +static void usb_async_callback(struct urb *urb, struct pt_regs *regs) +{ + struct irctl *ir; + int len; + + if (!urb) + return; + + ir = urb->context; + if (ir) { + len = urb->actual_length; + + dprintk(DRIVER_NAME + "[%d]: callback called (status=%d len=%d)\n", + ir->devnum, urb->status, len); + + if (debug) + usb_remote_printdata(ir, urb->transfer_buffer, len); + } + +} + + +/* request incoming or send outgoing usb packet - used to initialize remote */ +static void request_packet_async(struct irctl *ir, + struct usb_endpoint_descriptor *ep, + unsigned char *data, int size, int urb_type) +{ + int res; + struct urb *async_urb; + unsigned char *async_buf; + + if (urb_type) { + async_urb = usb_alloc_urb(0, GFP_KERNEL); + if (async_urb) { + /* alloc buffer */ + async_buf = kmalloc(size, GFP_KERNEL); + if (async_buf) { + if (urb_type == PHILUSB_OUTBOUND) { + /* 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 { + /* inbound data */ + usb_fill_int_urb(async_urb, ir->usbdev, + usb_rcvintpipe(ir->usbdev, + ep->bEndpointAddress), + async_buf, size, + (usb_complete_t) usb_async_callback, + ir, ep->bInterval); + } + } else { + usb_free_urb(async_urb); + return; + } + } + } else { + /* standard request */ + async_urb = ir->urb_in; + ir->send_flags = RECV_FLAG_IN_PROGRESS; + } + dprintk(DRIVER_NAME "[%d]: receive request called (size=%#x)\n", + ir->devnum, size); + + async_urb->transfer_buffer_length = size; + async_urb->dev = ir->usbdev; + + res = usb_submit_urb(async_urb, GFP_ATOMIC); + if (res) { + dprintk(DRIVER_NAME "[%d]: receive request FAILED! (res=%d)\n", + ir->devnum, res); + return; + } + dprintk(DRIVER_NAME "[%d]: receive request complete (res=%d)\n", + ir->devnum, res); +} + +static int unregister_from_lirc(struct irctl *ir) +{ + struct lirc_plugin *p = ir->p; + int devnum; + int rtn; + + devnum = ir->devnum; + dprintk(DRIVER_NAME "[%d]: unregister from lirc called\n", devnum); + + rtn = lirc_unregister_plugin(p->minor); + if (rtn > 0) { + printk(DRIVER_NAME "[%d]: error in lirc_unregister minor: %d\n" + "Trying again...\n", devnum, p->minor); + if (rtn == -EBUSY) { + printk(DRIVER_NAME + "[%d]: device is opened, will unregister" + " on close\n", devnum); + return -EAGAIN; + } + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(HZ); + + rtn = lirc_unregister_plugin(p->minor); + if (rtn > 0) + printk(DRIVER_NAME "[%d]: lirc_unregister failed\n", + devnum); + } + + if (rtn != SUCCESS) { + printk(DRIVER_NAME "[%d]: didn't free resources\n", devnum); + return -EAGAIN; + } + + printk(DRIVER_NAME "[%d]: usb remote disconnected\n", devnum); + + lirc_buffer_free(p->rbuf); + kfree(p->rbuf); + kfree(p); + kfree(ir); + return SUCCESS; +} + +static int set_use_inc(void *data) +{ + struct irctl *ir = data; + + if (!ir) { + printk(DRIVER_NAME "[?]: set_use_inc called with no context\n"); + return -EIO; + } + dprintk(DRIVER_NAME "[%d]: set use inc\n", ir->devnum); + + if (!ir->flags.connected) { + if (!ir->usbdev) + return -ENOENT; + ir->flags.connected = 1; + } + + return SUCCESS; +} + +static void set_use_dec(void *data) +{ + struct irctl *ir = data; + + if (!ir) { + printk(DRIVER_NAME "[?]: set_use_dec called with no context\n"); + return; + } + dprintk(DRIVER_NAME "[%d]: set use dec\n", ir->devnum); + + if (ir->flags.connected) { + IRLOCK; + ir->flags.connected = 0; + IRUNLOCK; + } +} + +static void send_packet_to_lirc(struct irctl *ir) +{ + if (ir->lircdata != 0) { + lirc_buffer_write_1(ir->p->rbuf, + (unsigned char *) &ir->lircdata); + wake_up(&ir->p->rbuf->wait_poll); + ir->lircdata = 0; + } +} + +static void usb_remote_recv(struct urb *urb, struct pt_regs *regs) +{ + struct irctl *ir; + int buf_len, packet_len; + int i, j; + + if (!urb) + return; + + ir = urb->context; + if (!ir) { + usb_unlink_urb(urb); + return; + } + + buf_len = urb->actual_length; + packet_len = 0; + + if (debug) + usb_remote_printdata(ir, urb->transfer_buffer, buf_len); + + if (ir->send_flags == RECV_FLAG_IN_PROGRESS) { + ir->send_flags = SEND_FLAG_COMPLETE; + dprintk(DRIVER_NAME "[%d]: setup answer received %d bytes\n", + ir->devnum, buf_len); + } + + switch (urb->status) { + /* success */ + case SUCCESS: + for (i = 0; i < buf_len; i++) { + /* decode mce packets of the form (84),AA,BB,CC,DD */ + switch (ir->buf_in[i]) { + + /* data headers */ + case 0x90: /* used Pinnacle Remote Kit */ + case 0x8F: + case 0x8E: + case 0x8D: + case 0x8C: + case 0x8B: + case 0x8A: + case 0x89: + case 0x88: + case 0x87: + case 0x86: + case 0x85: + case 0x84: + case 0x83: + case 0x82: + case 0x81: + case 0x80: + /* decode packet data */ + packet_len = ir->buf_in[i] & + MCE_PACKET_LENGTH_MASK; + for (j = 1; + j <= packet_len && (i+j < buf_len); + j++) { + /* rising/falling flank */ + if (ir->is_pulse != + (ir->buf_in[i + j] & + MCE_PULSE_BIT)) { + send_packet_to_lirc(ir); + ir->is_pulse = + ir->buf_in[i + j] & + MCE_PULSE_BIT; + } + + /* accumulate mce pulse/space values */ + ir->lircdata += + (ir->buf_in[i + j] & + MCE_PULSE_MASK)*MCE_TIME_UNIT; + ir->lircdata |= + (ir->is_pulse ? PULSE_BIT : 0); + } + + i += packet_len; + break; + + /* status header (0x9F) */ + case MCE_CONTROL_HEADER: + /* A transmission containing one or + more consecutive ir commands always + ends with a GAP of 100ms followed by the + sequence 0x9F 0x01 0x01 0x9F 0x15 + 0x00 0x00 0x80 */ + + /* + Uncomment this if the last 100ms + "infinity"-space should be transmitted + to lirc directly instead of at the beginning + of the next transmission. Changes pulse/space order. + + if (++i < buf_len && ir->buf_in[i]==0x01) + send_packet_to_lirc(ir); + + */ + + /* end decode loop */ + i = buf_len; + break; + default: + break; + } + } + + break; + + /* unlink */ + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + usb_unlink_urb(urb); + return; + + case -EPIPE: + default: + break; + } + + /* resubmit urb */ + usb_submit_urb(urb, GFP_ATOMIC); +} + + +static ssize_t lirc_write(struct file *file, const char *buf, + size_t n, loff_t *ppos) +{ + int i, count = 0, cmdcount = 0; + struct irctl *ir = NULL; + int wbuf[LIRCBUF_SIZE]; /* Workbuffer with values from lirc */ + unsigned char cmdbuf[MCE_CMDBUF_SIZE]; /* MCE command buffer */ + unsigned long signal_duration = 0; /* Singnal length in us */ + struct timeval start_time, end_time; + + do_gettimeofday(&start_time); + + /* Retrieve lirc_plugin data for the device */ + ir = lirc_get_pdata(file); + if (!ir && !ir->usb_ep_out) + return -EFAULT; + + if (n % sizeof(int)) + return -EINVAL; + count = n / sizeof(int); + + /* Check if command is within limits */ + if (count > LIRCBUF_SIZE || count%2 == 0) + return -EINVAL; + if (copy_from_user(wbuf, buf, n)) + return -EFAULT; + + /* MCE tx init header */ + cmdbuf[cmdcount++] = MCE_CONTROL_HEADER; + cmdbuf[cmdcount++] = 0x08; + cmdbuf[cmdcount++] = ir->transmitter_mask; + + /* Generate mce packet data */ + for (i = 0; (i < count) && (cmdcount < MCE_CMDBUF_SIZE); i++) { + signal_duration += wbuf[i]; + wbuf[i] = wbuf[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++] = + (wbuf[i] < MCE_PULSE_BIT ? + wbuf[i] : MCE_MAX_PULSE_LENGTH) | + (i & 1 ? 0x00 : MCE_PULSE_BIT); + else + return -EINVAL; + } while ((wbuf[i] > MCE_MAX_PULSE_LENGTH) && + (wbuf[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) + return -EINVAL; + + /* All mce commands end with an empty packet (0x80) */ + cmdbuf[cmdcount++] = 0x80; + + /* Transmit the command to the mce device */ + request_packet_async(ir, ir->usb_ep_out, cmdbuf, + cmdcount, PHILUSB_OUTBOUND); + + /* 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)); + + return n; +} + +static void set_transmitter_mask(struct irctl *ir, unsigned int mask) +{ + if (ir->flags.transmitter_mask_inverted) + ir->transmitter_mask = (mask != 0x03 ? mask ^ 0x03 : mask) << 1; + else + ir->transmitter_mask = mask; +} + + +/* Sets the send carrier frequency */ +static int set_send_carrier(struct irctl *ir, int carrier) +{ + int clk = 10000000; + int prescaler = 0, divisor = 0; + unsigned char cmdbuf[] = { 0x9F, 0x06, 0x01, 0x80 }; + + /* Carrier is changed */ + if (ir->carrier_freq != carrier) { + + if (carrier <= 0) { + ir->carrier_freq = carrier; + dprintk(DRIVER_NAME "[%d]: SET_CARRIER disabling " + "carrier modulation\n", ir->devnum); + request_packet_async(ir, ir->usb_ep_out, + cmdbuf, sizeof(cmdbuf), + PHILUSB_OUTBOUND); + return carrier; + } + + for (prescaler = 0; prescaler < 4; ++prescaler) { + divisor = (clk >> (2 * prescaler)) / carrier; + if (divisor <= 0xFF) { + ir->carrier_freq = carrier; + cmdbuf[2] = prescaler; + cmdbuf[3] = divisor; + dprintk(DRIVER_NAME "[%d]: SET_CARRIER " + "requesting %d Hz\n", + ir->devnum, carrier); + + /* Transmit the new carrier to the mce + device */ + request_packet_async(ir, ir->usb_ep_out, + cmdbuf, sizeof(cmdbuf), + PHILUSB_OUTBOUND); + return carrier; + } + } + + return -EINVAL; + + } + + return carrier; +} + + +static int lirc_ioctl(struct inode *node, struct file *filep, + unsigned int cmd, unsigned long arg) +{ + int result; + unsigned int ivalue; + unsigned long lvalue; + struct irctl *ir = NULL; + + /* Retrieve lirc_plugin data for the device */ + ir = lirc_get_pdata(filep); + if (!ir && !ir->usb_ep_out) + return -EFAULT; + + + switch (cmd) { + case LIRC_SET_TRANSMITTER_MASK: + + result = get_user(ivalue, (unsigned int *) arg); + if (result) + return result; + switch (ivalue) { + case 0x01: /* Transmitter 1 => 0x04 */ + case 0x02: /* Transmitter 2 => 0x02 */ + case 0x03: /* Transmitter 1 & 2 => 0x06 */ + set_transmitter_mask(ir, ivalue); + break; + + default: /* Unsupported transmitter mask */ + return MCE_MAX_CHANNELS; + } + + dprintk(DRIVER_NAME ": SET_TRANSMITTERS mask=%d\n", ivalue); + break; + + case LIRC_GET_SEND_MODE: + + result = put_user(LIRC_SEND2MODE(LIRC_CAN_SEND_PULSE & + LIRC_CAN_SEND_MASK), + (unsigned long *) arg); + + if (result) + return result; + break; + + case LIRC_SET_SEND_MODE: + + result = get_user(lvalue, (unsigned long *) arg); + + if (result) + return result; + if (lvalue != (LIRC_MODE_PULSE&LIRC_CAN_SEND_MASK)) + return -EINVAL; + break; + + case LIRC_SET_SEND_CARRIER: + + result = get_user(ivalue, (unsigned int *) arg); + if (result) + return result; + + set_send_carrier(ir, ivalue); + break; + + default: + return -ENOIOCTLCMD; + } + + return 0; +} + +static struct file_operations lirc_fops = { + .write = lirc_write, +}; + + +static int usb_remote_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 irctl *ir = NULL; + struct lirc_plugin *plugin = NULL; + struct lirc_buffer *rbuf = NULL; + int devnum, pipe, maxp; + int minor = 0; + int i; + char buf[63], name[128] = ""; + int mem_failure = 0; + int is_pinnacle; + + dprintk(DRIVER_NAME ": usb probe called\n"); + + usb_reset_device(dev); + + config = dev->actconfig; + + idesc = intf->cur_altsetting; + + is_pinnacle = usb_match_id(intf, pinnacle_list) ? 1 : 0; + + /* 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))) { + + dprintk(DRIVER_NAME ": acceptable inbound endpoint " + "found\n"); + ep_in = ep; + ep_in->bmAttributes = USB_ENDPOINT_XFER_INT; + if (is_pinnacle) + /* + * setting seems to 1 seem to cause issues with + * Pinnacle timing out on transfer. + */ + ep_in->bInterval = ep->bInterval; + else + ep_in->bInterval = 1; + } + + 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))) { + + dprintk(DRIVER_NAME ": acceptable outbound endpoint " + "found\n"); + ep_out = ep; + ep_out->bmAttributes = USB_ENDPOINT_XFER_INT; + if (is_pinnacle) + /* + * setting seems to 1 seem to cause issues with + * Pinnacle timing out on transfer. + */ + ep_out->bInterval = ep->bInterval; + else + ep_out->bInterval = 1; + } + } + if (ep_in == NULL) { + dprintk(DRIVER_NAME ": inbound and/or endpoint not found\n"); + return -ENODEV; + } + + devnum = dev->devnum; + pipe = usb_rcvintpipe(dev, ep_in->bEndpointAddress); + maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); + + /* allocate kernel memory */ + mem_failure = 0; + ir = kmalloc(sizeof(struct irctl), GFP_KERNEL); + if (!ir) { + mem_failure = 1; + goto mem_failure_switch; + } + + memset(ir, 0, sizeof(struct irctl)); + + plugin = kmalloc(sizeof(struct lirc_plugin), GFP_KERNEL); + if (!plugin) { + mem_failure = 2; + goto mem_failure_switch; + } + + rbuf = kmalloc(sizeof(struct lirc_buffer), GFP_KERNEL); + if (!rbuf) { + mem_failure = 3; + goto mem_failure_switch; + } + + if (lirc_buffer_init(rbuf, sizeof(int), LIRCBUF_SIZE)) { + mem_failure = 4; + goto mem_failure_switch; + } + + ir->buf_in = usb_buffer_alloc(dev, maxp, GFP_ATOMIC, &ir->dma_in); + if (!ir->buf_in) { + mem_failure = 5; + goto mem_failure_switch; + } + + ir->urb_in = usb_alloc_urb(0, GFP_KERNEL); + if (!ir->urb_in) { + mem_failure = 7; + goto mem_failure_switch; + } + + memset(plugin, 0, sizeof(struct lirc_plugin)); + + strcpy(plugin->name, DRIVER_NAME " "); + plugin->minor = -1; + plugin->features = LIRC_CAN_SEND_PULSE | + LIRC_CAN_SET_TRANSMITTER_MASK | + LIRC_CAN_REC_MODE2 | + LIRC_CAN_SET_SEND_CARRIER; + plugin->data = ir; + plugin->rbuf = rbuf; + plugin->set_use_inc = &set_use_inc; + plugin->set_use_dec = &set_use_dec; + plugin->code_length = sizeof(int) * 8; + plugin->ioctl = lirc_ioctl; + plugin->fops = &lirc_fops; + plugin->dev = &dev->dev; + plugin->owner = THIS_MODULE; + + mutex_init(&ir->lock); + init_waitqueue_head(&ir->wait_out); + + minor = lirc_register_plugin(plugin); + if (minor < 0) + mem_failure = 9; + +mem_failure_switch: + + /* free allocated memory incase of failure */ + switch (mem_failure) { + case 9: + usb_free_urb(ir->urb_in); + case 7: + usb_buffer_free(dev, maxp, ir->buf_in, ir->dma_in); + case 5: + lirc_buffer_free(rbuf); + case 4: + kfree(rbuf); + case 3: + kfree(plugin); + case 2: + kfree(ir); + case 1: + printk(DRIVER_NAME "[%d]: out of memory (code=%d)\n", + devnum, mem_failure); + return -ENOMEM; + } + + plugin->minor = minor; + ir->p = plugin; + ir->devnum = devnum; + ir->usbdev = dev; + ir->len_in = maxp; + ir->flags.connected = 0; + ir->flags.pinnacle = is_pinnacle; + ir->flags.transmitter_mask_inverted = + usb_match_id(intf, transmitter_mask_list) ? 0 : 1; + + ir->lircdata = PULSE_MASK; + ir->is_pulse = 0; + + /* ir->flags.transmitter_mask_inverted must be set */ + set_transmitter_mask(ir, MCE_DEFAULT_TX_MASK); + /* 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, 63) > 0) + strncpy(name, buf, 128); + if (dev->descriptor.iProduct + && usb_string(dev, dev->descriptor.iProduct, buf, 63) > 0) + snprintf(name, 128, "%s %s", name, buf); + printk(DRIVER_NAME "[%d]: %s on usb%d:%d\n", devnum, name, + dev->bus->busnum, devnum); + + /* inbound data */ + usb_fill_int_urb(ir->urb_in, dev, pipe, ir->buf_in, + maxp, (usb_complete_t) usb_remote_recv, ir, ep_in->bInterval); + + /* initialize device */ + if (ir->flags.pinnacle) { + int usbret; + + /* + * I have no idea why but this reset seems to be crucial to + * getting the device to do outbound IO correctly - without + * this the device seems to hang, ignoring all input - although + * IR signals are correctly sent from the device, no input is + * interpreted by the device and the host never does the + * completion routine + */ + + usbret = usb_reset_configuration(dev); + printk(DRIVER_NAME "[%d]: usb reset config ret %x\n", + devnum, usbret); + + /* + * its possible we really should wait for a return + * for each of these... + */ + request_packet_async(ir, ep_in, NULL, maxp, PHILUSB_INBOUND); + request_packet_async(ir, ep_out, pin_init1, sizeof(pin_init1), + PHILUSB_OUTBOUND); + request_packet_async(ir, ep_in, NULL, maxp, PHILUSB_INBOUND); + request_packet_async(ir, ep_out, pin_init2, sizeof(pin_init2), + PHILUSB_OUTBOUND); + request_packet_async(ir, ep_in, NULL, maxp, PHILUSB_INBOUND); + request_packet_async(ir, ep_out, pin_init3, sizeof(pin_init3), + PHILUSB_OUTBOUND); + /* if we dont issue the correct number of receives + * (PHILUSB_INBOUND) for each outbound, then the first few ir + * pulses will be interpreted by the usb_async_callback routine + * - we should ensure we have the right amount OR less - as the + * usb_remote_recv routine will handle the control packets OK - + * they start with 0x9f - but the async callback doesnt handle + * ir pulse packets + */ + request_packet_async(ir, ep_in, NULL, maxp, 0); + } else { + request_packet_async(ir, ep_in, NULL, maxp, PHILUSB_INBOUND); + request_packet_async(ir, ep_in, NULL, maxp, PHILUSB_INBOUND); + request_packet_async(ir, ep_out, init1, + sizeof(init1), PHILUSB_OUTBOUND); + request_packet_async(ir, ep_in, NULL, maxp, PHILUSB_INBOUND); + request_packet_async(ir, ep_out, init2, + sizeof(init2), PHILUSB_OUTBOUND); + request_packet_async(ir, ep_in, NULL, maxp, 0); + } + + usb_set_intfdata(intf, ir); + + return SUCCESS; +} + + +static void usb_remote_disconnect(struct usb_interface *intf) +{ + struct usb_device *dev = interface_to_usbdev(intf); + struct irctl *ir = usb_get_intfdata(intf); + + usb_set_intfdata(intf, NULL); + + if (!ir || !ir->p) + return; + + ir->usbdev = NULL; + wake_up_all(&ir->wait_out); + + IRLOCK; + usb_kill_urb(ir->urb_in); + usb_free_urb(ir->urb_in); + usb_buffer_free(dev, ir->len_in, ir->buf_in, ir->dma_in); + IRUNLOCK; + + unregister_from_lirc(ir); +} + +static int usb_remote_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct irctl *ir = usb_get_intfdata(intf); + printk(DRIVER_NAME "[%d]: suspend\n", ir->devnum); + usb_kill_urb(ir->urb_in); + return 0; +} + +static int usb_remote_resume(struct usb_interface *intf) +{ + struct irctl *ir = usb_get_intfdata(intf); + printk(DRIVER_NAME "[%d]: resume\n", ir->devnum); + if (usb_submit_urb(ir->urb_in, GFP_ATOMIC)) + return -EIO; + return 0; +} + +static struct usb_driver usb_remote_driver = { + .name = DRIVER_NAME, + .probe = usb_remote_probe, + .disconnect = usb_remote_disconnect, + .suspend = usb_remote_suspend, + .resume = usb_remote_resume, + .id_table = usb_remote_table +}; + +#ifdef MODULE +static int __init usb_remote_init(void) +{ + int i; + + printk(KERN_INFO "\n"); + printk(KERN_INFO DRIVER_NAME ": " DRIVER_DESC " " DRIVER_VERSION "\n"); + printk(KERN_INFO DRIVER_NAME ": " DRIVER_AUTHOR "\n"); + dprintk(DRIVER_NAME ": debug mode enabled\n"); + + request_module("lirc_dev"); + + i = usb_register(&usb_remote_driver); + if (i < 0) { + printk(DRIVER_NAME ": usb register failed, result = %d\n", i); + return -ENODEV; + } + + return SUCCESS; +} + +static void __exit usb_remote_exit(void) +{ + usb_deregister(&usb_remote_driver); +} + +module_init(usb_remote_init); +module_exit(usb_remote_exit); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(usb, usb_remote_table); + +module_param(debug, bool, 0644); +MODULE_PARM_DESC(debug, "Debug enabled or not"); +#endif /* MODULE */ -- 1.6.0.1