mirror of https://gitee.com/openkylin/linux.git
1303 lines
34 KiB
C
1303 lines
34 KiB
C
/*
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* USB RedRat3 IR Transceiver rc-core driver
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*
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* Copyright (c) 2011 by Jarod Wilson <jarod@redhat.com>
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* based heavily on the work of Stephen Cox, with additional
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* help from RedRat Ltd.
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*
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* This driver began life based an an old version of the first-generation
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* lirc_mceusb driver from the lirc 0.7.2 distribution. It was then
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* significantly rewritten by Stephen Cox with the aid of RedRat Ltd's
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* Chris Dodge.
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*
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* The driver was then ported to rc-core and significantly rewritten again,
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* by Jarod, using the in-kernel mceusb driver as a guide, after an initial
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* port effort was started by Stephen.
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*
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* TODO LIST:
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* - fix lirc not showing repeats properly
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* --
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*
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* The RedRat3 is a USB transceiver with both send & receive,
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* with 2 separate sensors available for receive to enable
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* both good long range reception for general use, and good
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* short range reception when required for learning a signal.
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*
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* http://www.redrat.co.uk/
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*
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* It uses its own little protocol to communicate, the required
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* parts of which are embedded within this driver.
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* --
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include <linux/usb/input.h>
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#include <media/rc-core.h>
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/* Driver Information */
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#define DRIVER_VERSION "0.70"
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#define DRIVER_AUTHOR "Jarod Wilson <jarod@redhat.com>"
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#define DRIVER_AUTHOR2 "The Dweller, Stephen Cox"
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#define DRIVER_DESC "RedRat3 USB IR Transceiver Driver"
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#define DRIVER_NAME "redrat3"
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/* module parameters */
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#ifdef CONFIG_USB_DEBUG
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static int debug = 1;
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#else
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static int debug;
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#endif
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#define RR3_DEBUG_STANDARD 0x1
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#define RR3_DEBUG_FUNCTION_TRACE 0x2
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#define rr3_dbg(dev, fmt, ...) \
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do { \
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if (debug & RR3_DEBUG_STANDARD) \
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dev_info(dev, fmt, ## __VA_ARGS__); \
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} while (0)
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#define rr3_ftr(dev, fmt, ...) \
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do { \
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if (debug & RR3_DEBUG_FUNCTION_TRACE) \
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dev_info(dev, fmt, ## __VA_ARGS__); \
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} while (0)
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/* bulk data transfer types */
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#define RR3_ERROR 0x01
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#define RR3_MOD_SIGNAL_IN 0x20
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#define RR3_MOD_SIGNAL_OUT 0x21
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/* Get the RR firmware version */
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#define RR3_FW_VERSION 0xb1
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#define RR3_FW_VERSION_LEN 64
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/* Send encoded signal bulk-sent earlier*/
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#define RR3_TX_SEND_SIGNAL 0xb3
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#define RR3_SET_IR_PARAM 0xb7
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#define RR3_GET_IR_PARAM 0xb8
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/* Blink the red LED on the device */
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#define RR3_BLINK_LED 0xb9
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/* Read serial number of device */
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#define RR3_READ_SER_NO 0xba
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#define RR3_SER_NO_LEN 4
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/* Start capture with the RC receiver */
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#define RR3_RC_DET_ENABLE 0xbb
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/* Stop capture with the RC receiver */
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#define RR3_RC_DET_DISABLE 0xbc
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/* Return the status of RC detector capture */
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#define RR3_RC_DET_STATUS 0xbd
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/* Reset redrat */
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#define RR3_RESET 0xa0
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/* Max number of lengths in the signal. */
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#define RR3_IR_IO_MAX_LENGTHS 0x01
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/* Periods to measure mod. freq. */
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#define RR3_IR_IO_PERIODS_MF 0x02
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/* Size of memory for main signal data */
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#define RR3_IR_IO_SIG_MEM_SIZE 0x03
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/* Delta value when measuring lengths */
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#define RR3_IR_IO_LENGTH_FUZZ 0x04
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/* Timeout for end of signal detection */
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#define RR3_IR_IO_SIG_TIMEOUT 0x05
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/* Minumum value for pause recognition. */
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#define RR3_IR_IO_MIN_PAUSE 0x06
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/* Clock freq. of EZ-USB chip */
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#define RR3_CLK 24000000
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/* Clock periods per timer count */
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#define RR3_CLK_PER_COUNT 12
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/* (RR3_CLK / RR3_CLK_PER_COUNT) */
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#define RR3_CLK_CONV_FACTOR 2000000
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/* USB bulk-in IR data endpoint address */
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#define RR3_BULK_IN_EP_ADDR 0x82
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/* Raw Modulated signal data value offsets */
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#define RR3_PAUSE_OFFSET 0
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#define RR3_FREQ_COUNT_OFFSET 4
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#define RR3_NUM_PERIOD_OFFSET 6
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#define RR3_MAX_LENGTHS_OFFSET 8
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#define RR3_NUM_LENGTHS_OFFSET 9
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#define RR3_MAX_SIGS_OFFSET 10
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#define RR3_NUM_SIGS_OFFSET 12
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#define RR3_REPEATS_OFFSET 14
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/* Size of the fixed-length portion of the signal */
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#define RR3_HEADER_LENGTH 15
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#define RR3_DRIVER_MAXLENS 128
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#define RR3_MAX_SIG_SIZE 512
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#define RR3_MAX_BUF_SIZE \
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((2 * RR3_HEADER_LENGTH) + RR3_DRIVER_MAXLENS + RR3_MAX_SIG_SIZE)
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#define RR3_TIME_UNIT 50
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#define RR3_END_OF_SIGNAL 0x7f
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#define RR3_TX_HEADER_OFFSET 4
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#define RR3_TX_TRAILER_LEN 2
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#define RR3_RX_MIN_TIMEOUT 5
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#define RR3_RX_MAX_TIMEOUT 2000
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/* The 8051's CPUCS Register address */
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#define RR3_CPUCS_REG_ADDR 0x7f92
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#define USB_RR3USB_VENDOR_ID 0x112a
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#define USB_RR3USB_PRODUCT_ID 0x0001
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#define USB_RR3IIUSB_PRODUCT_ID 0x0005
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/* table of devices that work with this driver */
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static struct usb_device_id redrat3_dev_table[] = {
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/* Original version of the RedRat3 */
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{USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3USB_PRODUCT_ID)},
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/* Second Version/release of the RedRat3 - RetRat3-II */
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{USB_DEVICE(USB_RR3USB_VENDOR_ID, USB_RR3IIUSB_PRODUCT_ID)},
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{} /* Terminating entry */
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};
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/* Structure to hold all of our device specific stuff */
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struct redrat3_dev {
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/* core device bits */
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struct rc_dev *rc;
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struct device *dev;
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/* save off the usb device pointer */
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struct usb_device *udev;
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/* the receive endpoint */
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struct usb_endpoint_descriptor *ep_in;
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/* the buffer to receive data */
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unsigned char *bulk_in_buf;
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/* urb used to read ir data */
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struct urb *read_urb;
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/* the send endpoint */
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struct usb_endpoint_descriptor *ep_out;
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/* the buffer to send data */
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unsigned char *bulk_out_buf;
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/* the urb used to send data */
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struct urb *write_urb;
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/* usb dma */
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dma_addr_t dma_in;
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dma_addr_t dma_out;
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/* locks this structure */
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struct mutex lock;
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/* rx signal timeout timer */
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struct timer_list rx_timeout;
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u32 hw_timeout;
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/* is the detector enabled*/
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bool det_enabled;
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/* Is the device currently transmitting?*/
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bool transmitting;
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/* store for current packet */
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char pbuf[RR3_MAX_BUF_SIZE];
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u16 pktlen;
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u16 pkttype;
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u16 bytes_read;
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/* indicate whether we are going to reprocess
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* the USB callback with a bigger buffer */
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int buftoosmall;
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char *datap;
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u32 carrier;
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char name[128];
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char phys[64];
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};
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/* All incoming data buffers adhere to a very specific data format */
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struct redrat3_signal_header {
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u16 length; /* Length of data being transferred */
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u16 transfer_type; /* Type of data transferred */
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u32 pause; /* Pause between main and repeat signals */
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u16 mod_freq_count; /* Value of timer on mod. freq. measurement */
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u16 no_periods; /* No. of periods over which mod. freq. is measured */
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u8 max_lengths; /* Max no. of lengths (i.e. size of array) */
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u8 no_lengths; /* Actual no. of elements in lengths array */
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u16 max_sig_size; /* Max no. of values in signal data array */
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u16 sig_size; /* Acuto no. of values in signal data array */
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u8 no_repeats; /* No. of repeats of repeat signal section */
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/* Here forward is the lengths and signal data */
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};
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static void redrat3_dump_signal_header(struct redrat3_signal_header *header)
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{
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pr_info("%s:\n", __func__);
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pr_info(" * length: %u, transfer_type: 0x%02x\n",
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header->length, header->transfer_type);
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pr_info(" * pause: %u, freq_count: %u, no_periods: %u\n",
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header->pause, header->mod_freq_count, header->no_periods);
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pr_info(" * lengths: %u (max: %u)\n",
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header->no_lengths, header->max_lengths);
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pr_info(" * sig_size: %u (max: %u)\n",
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header->sig_size, header->max_sig_size);
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pr_info(" * repeats: %u\n", header->no_repeats);
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}
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static void redrat3_dump_signal_data(char *buffer, u16 len)
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{
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int offset, i;
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char *data_vals;
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pr_info("%s:", __func__);
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offset = RR3_TX_HEADER_OFFSET + RR3_HEADER_LENGTH
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+ (RR3_DRIVER_MAXLENS * sizeof(u16));
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/* read RR3_DRIVER_MAXLENS from ctrl msg */
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data_vals = buffer + offset;
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for (i = 0; i < len; i++) {
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if (i % 10 == 0)
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pr_cont("\n * ");
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pr_cont("%02x ", *data_vals++);
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}
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pr_cont("\n");
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}
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/*
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* redrat3_issue_async
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*
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* Issues an async read to the ir data in port..
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* sets the callback to be redrat3_handle_async
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*/
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static void redrat3_issue_async(struct redrat3_dev *rr3)
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{
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int res;
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rr3_ftr(rr3->dev, "Entering %s\n", __func__);
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memset(rr3->bulk_in_buf, 0, rr3->ep_in->wMaxPacketSize);
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res = usb_submit_urb(rr3->read_urb, GFP_ATOMIC);
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if (res)
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rr3_dbg(rr3->dev, "%s: receive request FAILED! "
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"(res %d, len %d)\n", __func__, res,
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rr3->read_urb->transfer_buffer_length);
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}
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static void redrat3_dump_fw_error(struct redrat3_dev *rr3, int code)
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{
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if (!rr3->transmitting && (code != 0x40))
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dev_info(rr3->dev, "fw error code 0x%02x: ", code);
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switch (code) {
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case 0x00:
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pr_cont("No Error\n");
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break;
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/* Codes 0x20 through 0x2f are IR Firmware Errors */
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case 0x20:
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pr_cont("Initial signal pulse not long enough "
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"to measure carrier frequency\n");
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break;
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case 0x21:
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pr_cont("Not enough length values allocated for signal\n");
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break;
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case 0x22:
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pr_cont("Not enough memory allocated for signal data\n");
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break;
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case 0x23:
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pr_cont("Too many signal repeats\n");
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break;
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case 0x28:
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pr_cont("Insufficient memory available for IR signal "
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"data memory allocation\n");
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break;
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case 0x29:
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pr_cont("Insufficient memory available "
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"for IrDa signal data memory allocation\n");
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break;
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/* Codes 0x30 through 0x3f are USB Firmware Errors */
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case 0x30:
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pr_cont("Insufficient memory available for bulk "
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"transfer structure\n");
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break;
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/*
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* Other error codes... These are primarily errors that can occur in
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* the control messages sent to the redrat
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*/
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case 0x40:
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if (!rr3->transmitting)
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pr_cont("Signal capture has been terminated\n");
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break;
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case 0x41:
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pr_cont("Attempt to set/get and unknown signal I/O "
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"algorithm parameter\n");
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break;
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case 0x42:
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pr_cont("Signal capture already started\n");
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break;
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default:
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pr_cont("Unknown Error\n");
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break;
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}
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}
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static u32 redrat3_val_to_mod_freq(struct redrat3_signal_header *ph)
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{
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u32 mod_freq = 0;
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if (ph->mod_freq_count != 0)
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mod_freq = (RR3_CLK * ph->no_periods) /
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(ph->mod_freq_count * RR3_CLK_PER_COUNT);
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return mod_freq;
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}
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/* this function scales down the figures for the same result... */
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static u32 redrat3_len_to_us(u32 length)
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{
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u32 biglen = length * 1000;
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u32 divisor = (RR3_CLK_CONV_FACTOR) / 1000;
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u32 result = (u32) (biglen / divisor);
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/* don't allow zero lengths to go back, breaks lirc */
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return result ? result : 1;
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}
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/*
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* convert us back into redrat3 lengths
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*
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* length * 1000 length * 1000000
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* ------------- = ---------------- = micro
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* rr3clk / 1000 rr3clk
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* 6 * 2 4 * 3 micro * rr3clk micro * rr3clk / 1000
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* ----- = 4 ----- = 6 -------------- = len ---------------------
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* 3 2 1000000 1000
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*/
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static u32 redrat3_us_to_len(u32 microsec)
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{
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u32 result;
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u32 divisor;
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microsec &= IR_MAX_DURATION;
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divisor = (RR3_CLK_CONV_FACTOR / 1000);
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result = (u32)(microsec * divisor) / 1000;
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/* don't allow zero lengths to go back, breaks lirc */
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return result ? result : 1;
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}
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/* timer callback to send reset event */
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static void redrat3_rx_timeout(unsigned long data)
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{
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struct redrat3_dev *rr3 = (struct redrat3_dev *)data;
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rr3_dbg(rr3->dev, "calling ir_raw_event_reset\n");
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ir_raw_event_reset(rr3->rc);
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}
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static void redrat3_process_ir_data(struct redrat3_dev *rr3)
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{
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DEFINE_IR_RAW_EVENT(rawir);
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struct redrat3_signal_header header;
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struct device *dev;
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int i, trailer = 0;
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unsigned long delay;
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u32 mod_freq, single_len;
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u16 *len_vals;
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u8 *data_vals;
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u32 tmp32;
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u16 tmp16;
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char *sig_data;
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if (!rr3) {
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pr_err("%s called with no context!\n", __func__);
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return;
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}
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rr3_ftr(rr3->dev, "Entered %s\n", __func__);
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dev = rr3->dev;
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sig_data = rr3->pbuf;
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header.length = rr3->pktlen;
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header.transfer_type = rr3->pkttype;
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/* Sanity check */
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if (!(header.length >= RR3_HEADER_LENGTH))
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dev_warn(dev, "read returned less than rr3 header len\n");
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/* Make sure we reset the IR kfifo after a bit of inactivity */
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delay = usecs_to_jiffies(rr3->hw_timeout);
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mod_timer(&rr3->rx_timeout, jiffies + delay);
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memcpy(&tmp32, sig_data + RR3_PAUSE_OFFSET, sizeof(tmp32));
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header.pause = be32_to_cpu(tmp32);
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memcpy(&tmp16, sig_data + RR3_FREQ_COUNT_OFFSET, sizeof(tmp16));
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header.mod_freq_count = be16_to_cpu(tmp16);
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memcpy(&tmp16, sig_data + RR3_NUM_PERIOD_OFFSET, sizeof(tmp16));
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header.no_periods = be16_to_cpu(tmp16);
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header.max_lengths = sig_data[RR3_MAX_LENGTHS_OFFSET];
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header.no_lengths = sig_data[RR3_NUM_LENGTHS_OFFSET];
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memcpy(&tmp16, sig_data + RR3_MAX_SIGS_OFFSET, sizeof(tmp16));
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header.max_sig_size = be16_to_cpu(tmp16);
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memcpy(&tmp16, sig_data + RR3_NUM_SIGS_OFFSET, sizeof(tmp16));
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header.sig_size = be16_to_cpu(tmp16);
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header.no_repeats= sig_data[RR3_REPEATS_OFFSET];
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if (debug) {
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redrat3_dump_signal_header(&header);
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redrat3_dump_signal_data(sig_data, header.sig_size);
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}
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mod_freq = redrat3_val_to_mod_freq(&header);
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rr3_dbg(dev, "Got mod_freq of %u\n", mod_freq);
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/* Here we pull out the 'length' values from the signal */
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len_vals = (u16 *)(sig_data + RR3_HEADER_LENGTH);
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data_vals = sig_data + RR3_HEADER_LENGTH +
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(header.max_lengths * sizeof(u16));
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/* process each rr3 encoded byte into an int */
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for (i = 0; i < header.sig_size; i++) {
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u16 val = len_vals[data_vals[i]];
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single_len = redrat3_len_to_us((u32)be16_to_cpu(val));
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/* we should always get pulse/space/pulse/space samples */
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if (i % 2)
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rawir.pulse = false;
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else
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rawir.pulse = true;
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rawir.duration = US_TO_NS(single_len);
|
|
/* Save initial pulse length to fudge trailer */
|
|
if (i == 0)
|
|
trailer = rawir.duration;
|
|
/* cap the value to IR_MAX_DURATION */
|
|
rawir.duration &= IR_MAX_DURATION;
|
|
|
|
rr3_dbg(dev, "storing %s with duration %d (i: %d)\n",
|
|
rawir.pulse ? "pulse" : "space", rawir.duration, i);
|
|
ir_raw_event_store_with_filter(rr3->rc, &rawir);
|
|
}
|
|
|
|
/* add a trailing space, if need be */
|
|
if (i % 2) {
|
|
rawir.pulse = false;
|
|
/* this duration is made up, and may not be ideal... */
|
|
if (trailer < US_TO_NS(1000))
|
|
rawir.duration = US_TO_NS(2800);
|
|
else
|
|
rawir.duration = trailer;
|
|
rr3_dbg(dev, "storing trailing space with duration %d\n",
|
|
rawir.duration);
|
|
ir_raw_event_store_with_filter(rr3->rc, &rawir);
|
|
}
|
|
|
|
rr3_dbg(dev, "calling ir_raw_event_handle\n");
|
|
ir_raw_event_handle(rr3->rc);
|
|
|
|
return;
|
|
}
|
|
|
|
/* Util fn to send rr3 cmds */
|
|
static u8 redrat3_send_cmd(int cmd, struct redrat3_dev *rr3)
|
|
{
|
|
struct usb_device *udev;
|
|
u8 *data;
|
|
int res;
|
|
|
|
data = kzalloc(sizeof(u8), GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
udev = rr3->udev;
|
|
res = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), cmd,
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
0x0000, 0x0000, data, sizeof(u8), HZ * 10);
|
|
|
|
if (res < 0) {
|
|
dev_err(rr3->dev, "%s: Error sending rr3 cmd res %d, data %d",
|
|
__func__, res, *data);
|
|
res = -EIO;
|
|
} else
|
|
res = (u8)data[0];
|
|
|
|
kfree(data);
|
|
|
|
return res;
|
|
}
|
|
|
|
/* Enables the long range detector and starts async receive */
|
|
static int redrat3_enable_detector(struct redrat3_dev *rr3)
|
|
{
|
|
struct device *dev = rr3->dev;
|
|
u8 ret;
|
|
|
|
rr3_ftr(dev, "Entering %s\n", __func__);
|
|
|
|
ret = redrat3_send_cmd(RR3_RC_DET_ENABLE, rr3);
|
|
if (ret != 0)
|
|
dev_dbg(dev, "%s: unexpected ret of %d\n",
|
|
__func__, ret);
|
|
|
|
ret = redrat3_send_cmd(RR3_RC_DET_STATUS, rr3);
|
|
if (ret != 1) {
|
|
dev_err(dev, "%s: detector status: %d, should be 1\n",
|
|
__func__, ret);
|
|
return -EIO;
|
|
}
|
|
|
|
rr3->det_enabled = true;
|
|
redrat3_issue_async(rr3);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Disables the rr3 long range detector */
|
|
static void redrat3_disable_detector(struct redrat3_dev *rr3)
|
|
{
|
|
struct device *dev = rr3->dev;
|
|
u8 ret;
|
|
|
|
rr3_ftr(dev, "Entering %s\n", __func__);
|
|
|
|
ret = redrat3_send_cmd(RR3_RC_DET_DISABLE, rr3);
|
|
if (ret != 0)
|
|
dev_err(dev, "%s: failure!\n", __func__);
|
|
|
|
ret = redrat3_send_cmd(RR3_RC_DET_STATUS, rr3);
|
|
if (ret != 0)
|
|
dev_warn(dev, "%s: detector status: %d, should be 0\n",
|
|
__func__, ret);
|
|
|
|
rr3->det_enabled = false;
|
|
}
|
|
|
|
static inline void redrat3_delete(struct redrat3_dev *rr3,
|
|
struct usb_device *udev)
|
|
{
|
|
rr3_ftr(rr3->dev, "%s cleaning up\n", __func__);
|
|
usb_kill_urb(rr3->read_urb);
|
|
usb_kill_urb(rr3->write_urb);
|
|
|
|
usb_free_urb(rr3->read_urb);
|
|
usb_free_urb(rr3->write_urb);
|
|
|
|
usb_free_coherent(udev, rr3->ep_in->wMaxPacketSize,
|
|
rr3->bulk_in_buf, rr3->dma_in);
|
|
usb_free_coherent(udev, rr3->ep_out->wMaxPacketSize,
|
|
rr3->bulk_out_buf, rr3->dma_out);
|
|
|
|
kfree(rr3);
|
|
}
|
|
|
|
static u32 redrat3_get_timeout(struct redrat3_dev *rr3)
|
|
{
|
|
u32 *tmp;
|
|
u32 timeout = MS_TO_US(150); /* a sane default, if things go haywire */
|
|
int len, ret, pipe;
|
|
|
|
len = sizeof(*tmp);
|
|
tmp = kzalloc(len, GFP_KERNEL);
|
|
if (!tmp) {
|
|
dev_warn(rr3->dev, "Memory allocation faillure\n");
|
|
return timeout;
|
|
}
|
|
|
|
pipe = usb_rcvctrlpipe(rr3->udev, 0);
|
|
ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM,
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, HZ * 5);
|
|
if (ret != len) {
|
|
dev_warn(rr3->dev, "Failed to read timeout from hardware\n");
|
|
return timeout;
|
|
}
|
|
|
|
timeout = redrat3_len_to_us(be32_to_cpu(*tmp));
|
|
|
|
rr3_dbg(rr3->dev, "Got timeout of %d ms\n", timeout / 1000);
|
|
return timeout;
|
|
}
|
|
|
|
static void redrat3_reset(struct redrat3_dev *rr3)
|
|
{
|
|
struct usb_device *udev = rr3->udev;
|
|
struct device *dev = rr3->dev;
|
|
int rc, rxpipe, txpipe;
|
|
u8 *val;
|
|
int len = sizeof(u8);
|
|
|
|
rr3_ftr(dev, "Entering %s\n", __func__);
|
|
|
|
rxpipe = usb_rcvctrlpipe(udev, 0);
|
|
txpipe = usb_sndctrlpipe(udev, 0);
|
|
|
|
val = kzalloc(len, GFP_KERNEL);
|
|
if (!val) {
|
|
dev_err(dev, "Memory allocation failure\n");
|
|
return;
|
|
}
|
|
|
|
*val = 0x01;
|
|
rc = usb_control_msg(udev, rxpipe, RR3_RESET,
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
RR3_CPUCS_REG_ADDR, 0, val, len, HZ * 25);
|
|
rr3_dbg(dev, "reset returned 0x%02x\n", rc);
|
|
|
|
*val = 5;
|
|
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
|
|
RR3_IR_IO_LENGTH_FUZZ, 0, val, len, HZ * 25);
|
|
rr3_dbg(dev, "set ir parm len fuzz %d rc 0x%02x\n", *val, rc);
|
|
|
|
*val = RR3_DRIVER_MAXLENS;
|
|
rc = usb_control_msg(udev, txpipe, RR3_SET_IR_PARAM,
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
|
|
RR3_IR_IO_MAX_LENGTHS, 0, val, len, HZ * 25);
|
|
rr3_dbg(dev, "set ir parm max lens %d rc 0x%02x\n", *val, rc);
|
|
|
|
kfree(val);
|
|
}
|
|
|
|
static void redrat3_get_firmware_rev(struct redrat3_dev *rr3)
|
|
{
|
|
int rc = 0;
|
|
char *buffer;
|
|
|
|
rr3_ftr(rr3->dev, "Entering %s\n", __func__);
|
|
|
|
buffer = kzalloc(sizeof(char) * (RR3_FW_VERSION_LEN + 1), GFP_KERNEL);
|
|
if (!buffer) {
|
|
dev_err(rr3->dev, "Memory allocation failure\n");
|
|
return;
|
|
}
|
|
|
|
rc = usb_control_msg(rr3->udev, usb_rcvctrlpipe(rr3->udev, 0),
|
|
RR3_FW_VERSION,
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
0, 0, buffer, RR3_FW_VERSION_LEN, HZ * 5);
|
|
|
|
if (rc >= 0)
|
|
dev_info(rr3->dev, "Firmware rev: %s", buffer);
|
|
else
|
|
dev_err(rr3->dev, "Problem fetching firmware ID\n");
|
|
|
|
kfree(buffer);
|
|
rr3_ftr(rr3->dev, "Exiting %s\n", __func__);
|
|
}
|
|
|
|
static void redrat3_read_packet_start(struct redrat3_dev *rr3, int len)
|
|
{
|
|
u16 tx_error;
|
|
u16 hdrlen;
|
|
|
|
rr3_ftr(rr3->dev, "Entering %s\n", __func__);
|
|
|
|
/* grab the Length and type of transfer */
|
|
memcpy(&(rr3->pktlen), (unsigned char *) rr3->bulk_in_buf,
|
|
sizeof(rr3->pktlen));
|
|
memcpy(&(rr3->pkttype), ((unsigned char *) rr3->bulk_in_buf +
|
|
sizeof(rr3->pktlen)),
|
|
sizeof(rr3->pkttype));
|
|
|
|
/*data needs conversion to know what its real values are*/
|
|
rr3->pktlen = be16_to_cpu(rr3->pktlen);
|
|
rr3->pkttype = be16_to_cpu(rr3->pkttype);
|
|
|
|
switch (rr3->pkttype) {
|
|
case RR3_ERROR:
|
|
memcpy(&tx_error, ((unsigned char *)rr3->bulk_in_buf
|
|
+ (sizeof(rr3->pktlen) + sizeof(rr3->pkttype))),
|
|
sizeof(tx_error));
|
|
tx_error = be16_to_cpu(tx_error);
|
|
redrat3_dump_fw_error(rr3, tx_error);
|
|
break;
|
|
|
|
case RR3_MOD_SIGNAL_IN:
|
|
hdrlen = sizeof(rr3->pktlen) + sizeof(rr3->pkttype);
|
|
rr3->bytes_read = len;
|
|
rr3->bytes_read -= hdrlen;
|
|
rr3->datap = &(rr3->pbuf[0]);
|
|
|
|
memcpy(rr3->datap, ((unsigned char *)rr3->bulk_in_buf + hdrlen),
|
|
rr3->bytes_read);
|
|
rr3->datap += rr3->bytes_read;
|
|
rr3_dbg(rr3->dev, "bytes_read %d, pktlen %d\n",
|
|
rr3->bytes_read, rr3->pktlen);
|
|
break;
|
|
|
|
default:
|
|
rr3_dbg(rr3->dev, "ignoring packet with type 0x%02x, "
|
|
"len of %d, 0x%02x\n", rr3->pkttype, len, rr3->pktlen);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void redrat3_read_packet_continue(struct redrat3_dev *rr3, int len)
|
|
{
|
|
|
|
rr3_ftr(rr3->dev, "Entering %s\n", __func__);
|
|
|
|
memcpy(rr3->datap, (unsigned char *)rr3->bulk_in_buf, len);
|
|
rr3->datap += len;
|
|
|
|
rr3->bytes_read += len;
|
|
rr3_dbg(rr3->dev, "bytes_read %d, pktlen %d\n",
|
|
rr3->bytes_read, rr3->pktlen);
|
|
}
|
|
|
|
/* gather IR data from incoming urb, process it when we have enough */
|
|
static int redrat3_get_ir_data(struct redrat3_dev *rr3, int len)
|
|
{
|
|
struct device *dev = rr3->dev;
|
|
int ret = 0;
|
|
|
|
rr3_ftr(dev, "Entering %s\n", __func__);
|
|
|
|
if (rr3->pktlen > RR3_MAX_BUF_SIZE) {
|
|
dev_err(rr3->dev, "error: packet larger than buffer\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if ((rr3->bytes_read == 0) &&
|
|
(len >= (sizeof(rr3->pkttype) + sizeof(rr3->pktlen)))) {
|
|
redrat3_read_packet_start(rr3, len);
|
|
} else if (rr3->bytes_read != 0) {
|
|
redrat3_read_packet_continue(rr3, len);
|
|
} else if (rr3->bytes_read == 0) {
|
|
dev_err(dev, "error: no packet data read\n");
|
|
ret = -ENODATA;
|
|
goto out;
|
|
}
|
|
|
|
if (rr3->bytes_read > rr3->pktlen) {
|
|
dev_err(dev, "bytes_read (%d) greater than pktlen (%d)\n",
|
|
rr3->bytes_read, rr3->pktlen);
|
|
ret = -EINVAL;
|
|
goto out;
|
|
} else if (rr3->bytes_read < rr3->pktlen)
|
|
/* we're still accumulating data */
|
|
return 0;
|
|
|
|
/* if we get here, we've got IR data to decode */
|
|
if (rr3->pkttype == RR3_MOD_SIGNAL_IN)
|
|
redrat3_process_ir_data(rr3);
|
|
else
|
|
rr3_dbg(dev, "discarding non-signal data packet "
|
|
"(type 0x%02x)\n", rr3->pkttype);
|
|
|
|
out:
|
|
rr3->bytes_read = 0;
|
|
rr3->pktlen = 0;
|
|
rr3->pkttype = 0;
|
|
return ret;
|
|
}
|
|
|
|
/* callback function from USB when async USB request has completed */
|
|
static void redrat3_handle_async(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
struct redrat3_dev *rr3;
|
|
int ret;
|
|
|
|
if (!urb)
|
|
return;
|
|
|
|
rr3 = urb->context;
|
|
if (!rr3) {
|
|
pr_err("%s called with invalid context!\n", __func__);
|
|
usb_unlink_urb(urb);
|
|
return;
|
|
}
|
|
|
|
rr3_ftr(rr3->dev, "Entering %s\n", __func__);
|
|
|
|
switch (urb->status) {
|
|
case 0:
|
|
ret = redrat3_get_ir_data(rr3, urb->actual_length);
|
|
if (!ret) {
|
|
/* no error, prepare to read more */
|
|
redrat3_issue_async(rr3);
|
|
}
|
|
break;
|
|
|
|
case -ECONNRESET:
|
|
case -ENOENT:
|
|
case -ESHUTDOWN:
|
|
usb_unlink_urb(urb);
|
|
return;
|
|
|
|
case -EPIPE:
|
|
default:
|
|
dev_warn(rr3->dev, "Error: urb status = %d\n", urb->status);
|
|
rr3->bytes_read = 0;
|
|
rr3->pktlen = 0;
|
|
rr3->pkttype = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void redrat3_write_bulk_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
struct redrat3_dev *rr3;
|
|
int len;
|
|
|
|
if (!urb)
|
|
return;
|
|
|
|
rr3 = urb->context;
|
|
if (rr3) {
|
|
len = urb->actual_length;
|
|
rr3_ftr(rr3->dev, "%s: called (status=%d len=%d)\n",
|
|
__func__, urb->status, len);
|
|
}
|
|
}
|
|
|
|
static u16 mod_freq_to_val(unsigned int mod_freq)
|
|
{
|
|
int mult = 6000000;
|
|
|
|
/* Clk used in mod. freq. generation is CLK24/4. */
|
|
return (u16)(65536 - (mult / mod_freq));
|
|
}
|
|
|
|
static int redrat3_set_tx_carrier(struct rc_dev *rcdev, u32 carrier)
|
|
{
|
|
struct redrat3_dev *rr3 = rcdev->priv;
|
|
struct device *dev = rr3->dev;
|
|
|
|
rr3_dbg(dev, "Setting modulation frequency to %u", carrier);
|
|
if (carrier == 0)
|
|
return -EINVAL;
|
|
|
|
rr3->carrier = carrier;
|
|
|
|
return carrier;
|
|
}
|
|
|
|
static int redrat3_transmit_ir(struct rc_dev *rcdev, unsigned *txbuf,
|
|
unsigned count)
|
|
{
|
|
struct redrat3_dev *rr3 = rcdev->priv;
|
|
struct device *dev = rr3->dev;
|
|
struct redrat3_signal_header header;
|
|
int i, j, ret, ret_len, offset;
|
|
int lencheck, cur_sample_len, pipe;
|
|
char *buffer = NULL, *sigdata = NULL;
|
|
int *sample_lens = NULL;
|
|
u32 tmpi;
|
|
u16 tmps;
|
|
u8 *datap;
|
|
u8 curlencheck = 0;
|
|
u16 *lengths_ptr;
|
|
int sendbuf_len;
|
|
|
|
rr3_ftr(dev, "Entering %s\n", __func__);
|
|
|
|
if (rr3->transmitting) {
|
|
dev_warn(dev, "%s: transmitter already in use\n", __func__);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
if (count > (RR3_DRIVER_MAXLENS * 2))
|
|
return -EINVAL;
|
|
|
|
/* rr3 will disable rc detector on transmit */
|
|
rr3->det_enabled = false;
|
|
rr3->transmitting = true;
|
|
|
|
sample_lens = kzalloc(sizeof(int) * RR3_DRIVER_MAXLENS, GFP_KERNEL);
|
|
if (!sample_lens) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < count; i++) {
|
|
for (lencheck = 0; lencheck < curlencheck; lencheck++) {
|
|
cur_sample_len = redrat3_us_to_len(txbuf[i]);
|
|
if (sample_lens[lencheck] == cur_sample_len)
|
|
break;
|
|
}
|
|
if (lencheck == curlencheck) {
|
|
cur_sample_len = redrat3_us_to_len(txbuf[i]);
|
|
rr3_dbg(dev, "txbuf[%d]=%u, pos %d, enc %u\n",
|
|
i, txbuf[i], curlencheck, cur_sample_len);
|
|
if (curlencheck < 255) {
|
|
/* now convert the value to a proper
|
|
* rr3 value.. */
|
|
sample_lens[curlencheck] = cur_sample_len;
|
|
curlencheck++;
|
|
} else {
|
|
dev_err(dev, "signal too long\n");
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
}
|
|
}
|
|
|
|
sigdata = kzalloc((count + RR3_TX_TRAILER_LEN), GFP_KERNEL);
|
|
if (!sigdata) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
sigdata[count] = RR3_END_OF_SIGNAL;
|
|
sigdata[count + 1] = RR3_END_OF_SIGNAL;
|
|
for (i = 0; i < count; i++) {
|
|
for (j = 0; j < curlencheck; j++) {
|
|
if (sample_lens[j] == redrat3_us_to_len(txbuf[i]))
|
|
sigdata[i] = j;
|
|
}
|
|
}
|
|
|
|
offset = RR3_TX_HEADER_OFFSET;
|
|
sendbuf_len = RR3_HEADER_LENGTH + (sizeof(u16) * RR3_DRIVER_MAXLENS)
|
|
+ count + RR3_TX_TRAILER_LEN + offset;
|
|
|
|
buffer = kzalloc(sendbuf_len, GFP_KERNEL);
|
|
if (!buffer) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
/* fill in our packet header */
|
|
header.length = sendbuf_len - offset;
|
|
header.transfer_type = RR3_MOD_SIGNAL_OUT;
|
|
header.pause = redrat3_len_to_us(100);
|
|
header.mod_freq_count = mod_freq_to_val(rr3->carrier);
|
|
header.no_periods = 0; /* n/a to transmit */
|
|
header.max_lengths = RR3_DRIVER_MAXLENS;
|
|
header.no_lengths = curlencheck;
|
|
header.max_sig_size = RR3_MAX_SIG_SIZE;
|
|
header.sig_size = count + RR3_TX_TRAILER_LEN;
|
|
/* we currently rely on repeat handling in the IR encoding source */
|
|
header.no_repeats = 0;
|
|
|
|
tmps = cpu_to_be16(header.length);
|
|
memcpy(buffer, &tmps, 2);
|
|
|
|
tmps = cpu_to_be16(header.transfer_type);
|
|
memcpy(buffer + 2, &tmps, 2);
|
|
|
|
tmpi = cpu_to_be32(header.pause);
|
|
memcpy(buffer + offset, &tmpi, sizeof(tmpi));
|
|
|
|
tmps = cpu_to_be16(header.mod_freq_count);
|
|
memcpy(buffer + offset + RR3_FREQ_COUNT_OFFSET, &tmps, 2);
|
|
|
|
buffer[offset + RR3_NUM_LENGTHS_OFFSET] = header.no_lengths;
|
|
|
|
tmps = cpu_to_be16(header.sig_size);
|
|
memcpy(buffer + offset + RR3_NUM_SIGS_OFFSET, &tmps, 2);
|
|
|
|
buffer[offset + RR3_REPEATS_OFFSET] = header.no_repeats;
|
|
|
|
lengths_ptr = (u16 *)(buffer + offset + RR3_HEADER_LENGTH);
|
|
for (i = 0; i < curlencheck; ++i)
|
|
lengths_ptr[i] = cpu_to_be16(sample_lens[i]);
|
|
|
|
datap = (u8 *)(buffer + offset + RR3_HEADER_LENGTH +
|
|
(sizeof(u16) * RR3_DRIVER_MAXLENS));
|
|
memcpy(datap, sigdata, (count + RR3_TX_TRAILER_LEN));
|
|
|
|
if (debug) {
|
|
redrat3_dump_signal_header(&header);
|
|
redrat3_dump_signal_data(buffer, header.sig_size);
|
|
}
|
|
|
|
pipe = usb_sndbulkpipe(rr3->udev, rr3->ep_out->bEndpointAddress);
|
|
tmps = usb_bulk_msg(rr3->udev, pipe, buffer,
|
|
sendbuf_len, &ret_len, 10 * HZ);
|
|
rr3_dbg(dev, "sent %d bytes, (ret %d)\n", ret_len, tmps);
|
|
|
|
/* now tell the hardware to transmit what we sent it */
|
|
pipe = usb_rcvctrlpipe(rr3->udev, 0);
|
|
ret = usb_control_msg(rr3->udev, pipe, RR3_TX_SEND_SIGNAL,
|
|
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
|
|
0, 0, buffer, 2, HZ * 10);
|
|
|
|
if (ret < 0)
|
|
dev_err(dev, "Error: control msg send failed, rc %d\n", ret);
|
|
else
|
|
ret = count;
|
|
|
|
out:
|
|
kfree(sample_lens);
|
|
kfree(buffer);
|
|
kfree(sigdata);
|
|
|
|
rr3->transmitting = false;
|
|
/* rr3 re-enables rc detector because it was enabled before */
|
|
rr3->det_enabled = true;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct rc_dev *redrat3_init_rc_dev(struct redrat3_dev *rr3)
|
|
{
|
|
struct device *dev = rr3->dev;
|
|
struct rc_dev *rc;
|
|
int ret = -ENODEV;
|
|
u16 prod = le16_to_cpu(rr3->udev->descriptor.idProduct);
|
|
|
|
rc = rc_allocate_device();
|
|
if (!rc) {
|
|
dev_err(dev, "remote input dev allocation failed\n");
|
|
goto out;
|
|
}
|
|
|
|
snprintf(rr3->name, sizeof(rr3->name), "RedRat3%s "
|
|
"Infrared Remote Transceiver (%04x:%04x)",
|
|
prod == USB_RR3IIUSB_PRODUCT_ID ? "-II" : "",
|
|
le16_to_cpu(rr3->udev->descriptor.idVendor), prod);
|
|
|
|
usb_make_path(rr3->udev, rr3->phys, sizeof(rr3->phys));
|
|
|
|
rc->input_name = rr3->name;
|
|
rc->input_phys = rr3->phys;
|
|
usb_to_input_id(rr3->udev, &rc->input_id);
|
|
rc->dev.parent = dev;
|
|
rc->priv = rr3;
|
|
rc->driver_type = RC_DRIVER_IR_RAW;
|
|
rc->allowed_protos = RC_BIT_ALL;
|
|
rc->timeout = US_TO_NS(2750);
|
|
rc->tx_ir = redrat3_transmit_ir;
|
|
rc->s_tx_carrier = redrat3_set_tx_carrier;
|
|
rc->driver_name = DRIVER_NAME;
|
|
rc->map_name = RC_MAP_HAUPPAUGE;
|
|
|
|
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 redrat3_dev_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *udev = interface_to_usbdev(intf);
|
|
struct device *dev = &intf->dev;
|
|
struct usb_host_interface *uhi;
|
|
struct redrat3_dev *rr3;
|
|
struct usb_endpoint_descriptor *ep;
|
|
struct usb_endpoint_descriptor *ep_in = NULL;
|
|
struct usb_endpoint_descriptor *ep_out = NULL;
|
|
u8 addr, attrs;
|
|
int pipe, i;
|
|
int retval = -ENOMEM;
|
|
|
|
rr3_ftr(dev, "%s called\n", __func__);
|
|
|
|
uhi = intf->cur_altsetting;
|
|
|
|
/* find our bulk-in and bulk-out endpoints */
|
|
for (i = 0; i < uhi->desc.bNumEndpoints; ++i) {
|
|
ep = &uhi->endpoint[i].desc;
|
|
addr = ep->bEndpointAddress;
|
|
attrs = ep->bmAttributes;
|
|
|
|
if ((ep_in == NULL) &&
|
|
((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) &&
|
|
((attrs & USB_ENDPOINT_XFERTYPE_MASK) ==
|
|
USB_ENDPOINT_XFER_BULK)) {
|
|
rr3_dbg(dev, "found bulk-in endpoint at 0x%02x\n",
|
|
ep->bEndpointAddress);
|
|
/* data comes in on 0x82, 0x81 is for other data... */
|
|
if (ep->bEndpointAddress == RR3_BULK_IN_EP_ADDR)
|
|
ep_in = ep;
|
|
}
|
|
|
|
if ((ep_out == NULL) &&
|
|
((addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) &&
|
|
((attrs & USB_ENDPOINT_XFERTYPE_MASK) ==
|
|
USB_ENDPOINT_XFER_BULK)) {
|
|
rr3_dbg(dev, "found bulk-out endpoint at 0x%02x\n",
|
|
ep->bEndpointAddress);
|
|
ep_out = ep;
|
|
}
|
|
}
|
|
|
|
if (!ep_in || !ep_out) {
|
|
dev_err(dev, "Couldn't find both in and out endpoints\n");
|
|
retval = -ENODEV;
|
|
goto no_endpoints;
|
|
}
|
|
|
|
/* allocate memory for our device state and initialize it */
|
|
rr3 = kzalloc(sizeof(*rr3), GFP_KERNEL);
|
|
if (rr3 == NULL) {
|
|
dev_err(dev, "Memory allocation failure\n");
|
|
goto no_endpoints;
|
|
}
|
|
|
|
rr3->dev = &intf->dev;
|
|
|
|
/* set up bulk-in endpoint */
|
|
rr3->read_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!rr3->read_urb) {
|
|
dev_err(dev, "Read urb allocation failure\n");
|
|
goto error;
|
|
}
|
|
|
|
rr3->ep_in = ep_in;
|
|
rr3->bulk_in_buf = usb_alloc_coherent(udev, ep_in->wMaxPacketSize,
|
|
GFP_ATOMIC, &rr3->dma_in);
|
|
if (!rr3->bulk_in_buf) {
|
|
dev_err(dev, "Read buffer allocation failure\n");
|
|
goto error;
|
|
}
|
|
|
|
pipe = usb_rcvbulkpipe(udev, ep_in->bEndpointAddress);
|
|
usb_fill_bulk_urb(rr3->read_urb, udev, pipe,
|
|
rr3->bulk_in_buf, ep_in->wMaxPacketSize,
|
|
(usb_complete_t)redrat3_handle_async, rr3);
|
|
|
|
/* set up bulk-out endpoint*/
|
|
rr3->write_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!rr3->write_urb) {
|
|
dev_err(dev, "Write urb allocation failure\n");
|
|
goto error;
|
|
}
|
|
|
|
rr3->ep_out = ep_out;
|
|
rr3->bulk_out_buf = usb_alloc_coherent(udev, ep_out->wMaxPacketSize,
|
|
GFP_ATOMIC, &rr3->dma_out);
|
|
if (!rr3->bulk_out_buf) {
|
|
dev_err(dev, "Write buffer allocation failure\n");
|
|
goto error;
|
|
}
|
|
|
|
pipe = usb_sndbulkpipe(udev, ep_out->bEndpointAddress);
|
|
usb_fill_bulk_urb(rr3->write_urb, udev, pipe,
|
|
rr3->bulk_out_buf, ep_out->wMaxPacketSize,
|
|
(usb_complete_t)redrat3_write_bulk_callback, rr3);
|
|
|
|
mutex_init(&rr3->lock);
|
|
rr3->udev = udev;
|
|
|
|
redrat3_reset(rr3);
|
|
redrat3_get_firmware_rev(rr3);
|
|
|
|
/* might be all we need to do? */
|
|
retval = redrat3_enable_detector(rr3);
|
|
if (retval < 0)
|
|
goto error;
|
|
|
|
/* store current hardware timeout, in us, will use for kfifo resets */
|
|
rr3->hw_timeout = redrat3_get_timeout(rr3);
|
|
|
|
/* default.. will get overridden by any sends with a freq defined */
|
|
rr3->carrier = 38000;
|
|
|
|
rr3->rc = redrat3_init_rc_dev(rr3);
|
|
if (!rr3->rc) {
|
|
retval = -ENOMEM;
|
|
goto error;
|
|
}
|
|
setup_timer(&rr3->rx_timeout, redrat3_rx_timeout, (unsigned long)rr3);
|
|
|
|
/* we can register the device now, as it is ready */
|
|
usb_set_intfdata(intf, rr3);
|
|
|
|
rr3_ftr(dev, "Exiting %s\n", __func__);
|
|
return 0;
|
|
|
|
error:
|
|
redrat3_delete(rr3, rr3->udev);
|
|
|
|
no_endpoints:
|
|
dev_err(dev, "%s: retval = %x", __func__, retval);
|
|
|
|
return retval;
|
|
}
|
|
|
|
static void redrat3_dev_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct usb_device *udev = interface_to_usbdev(intf);
|
|
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
|
|
|
|
rr3_ftr(&intf->dev, "Entering %s\n", __func__);
|
|
|
|
if (!rr3)
|
|
return;
|
|
|
|
redrat3_disable_detector(rr3);
|
|
|
|
usb_set_intfdata(intf, NULL);
|
|
rc_unregister_device(rr3->rc);
|
|
del_timer_sync(&rr3->rx_timeout);
|
|
redrat3_delete(rr3, udev);
|
|
|
|
rr3_ftr(&intf->dev, "RedRat3 IR Transceiver now disconnected\n");
|
|
}
|
|
|
|
static int redrat3_dev_suspend(struct usb_interface *intf, pm_message_t message)
|
|
{
|
|
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
|
|
rr3_ftr(rr3->dev, "suspend\n");
|
|
usb_kill_urb(rr3->read_urb);
|
|
return 0;
|
|
}
|
|
|
|
static int redrat3_dev_resume(struct usb_interface *intf)
|
|
{
|
|
struct redrat3_dev *rr3 = usb_get_intfdata(intf);
|
|
rr3_ftr(rr3->dev, "resume\n");
|
|
if (usb_submit_urb(rr3->read_urb, GFP_ATOMIC))
|
|
return -EIO;
|
|
return 0;
|
|
}
|
|
|
|
static struct usb_driver redrat3_dev_driver = {
|
|
.name = DRIVER_NAME,
|
|
.probe = redrat3_dev_probe,
|
|
.disconnect = redrat3_dev_disconnect,
|
|
.suspend = redrat3_dev_suspend,
|
|
.resume = redrat3_dev_resume,
|
|
.reset_resume = redrat3_dev_resume,
|
|
.id_table = redrat3_dev_table
|
|
};
|
|
|
|
module_usb_driver(redrat3_dev_driver);
|
|
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_AUTHOR(DRIVER_AUTHOR2);
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DEVICE_TABLE(usb, redrat3_dev_table);
|
|
|
|
module_param(debug, int, S_IRUGO | S_IWUSR);
|
|
MODULE_PARM_DESC(debug, "Enable module debug spew. 0 = no debugging (default) "
|
|
"0x1 = standard debug messages, 0x2 = function tracing debug. "
|
|
"Flag bits are addative (i.e., 0x3 for both debug types).");
|