2349 lines
62 KiB
C
2349 lines
62 KiB
C
/*
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Keyspan USB to Serial Converter driver
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(C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org>
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(C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com>
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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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See http://misc.nu/hugh/keyspan.html for more information.
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Code in this driver inspired by and in a number of places taken
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from Brian Warner's original Keyspan-PDA driver.
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This driver has been put together with the support of Innosys, Inc.
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and Keyspan, Inc the manufacturers of the Keyspan USB-serial products.
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Thanks Guys :)
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Thanks to Paulus for miscellaneous tidy ups, some largish chunks
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of much nicer and/or completely new code and (perhaps most uniquely)
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having the patience to sit down and explain why and where he'd changed
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stuff.
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Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
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staff in their work on open source projects.
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Change History
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2003sep04 LPM (Keyspan) add support for new single port product USA19HS.
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Improve setup message handling for all devices.
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Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing <keyspan@jsl.com>)
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Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4)
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Linux source tree. The Linux tree lacked support for the 49WLC and
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others. The Keyspan patches didn't work with the current kernel.
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2003jan30 LPM add support for the 49WLC and MPR
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Wed Apr 25 12:00:00 PST 2002 (Keyspan)
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Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
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now supported (including QI and QW). Modified port open, port
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close, and send setup() logic to fix various data and endpoint
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synchronization bugs and device LED status bugs. Changed keyspan_
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write_room() to accurately return transmit buffer availability.
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Changed forwardingLength from 1 to 16 for all adapters.
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Fri Oct 12 16:45:00 EST 2001
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Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
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Wed Apr 25 12:00:00 PST 2002 (Keyspan)
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Started with Hugh Blemings' code dated Jan 17, 2002. All adapters
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now supported (including QI and QW). Modified port open, port
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close, and send setup() logic to fix various data and endpoint
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synchronization bugs and device LED status bugs. Changed keyspan_
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write_room() to accurately return transmit buffer availability.
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Changed forwardingLength from 1 to 16 for all adapters.
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Fri Oct 12 16:45:00 EST 2001
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Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
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Mon Oct 8 14:29:00 EST 2001 hugh
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Fixed bug that prevented mulitport devices operating correctly
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if they weren't the first unit attached.
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Sat Oct 6 12:31:21 EST 2001 hugh
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Added support for USA-28XA and -28XB, misc cleanups, break support
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for usa26 based models thanks to David Gibson.
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Thu May 31 11:56:42 PDT 2001 gkh
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switched from using spinlock to a semaphore
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(04/08/2001) gb
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Identify version on module load.
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(11/01/2000) Adam J. Richter
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usb_device_id table support.
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Tue Oct 10 23:15:33 EST 2000 Hugh
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Merged Paul's changes with my USA-49W mods. Work in progress
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still...
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Wed Jul 19 14:00:42 EST 2000 gkh
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Added module_init and module_exit functions to handle the fact that
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this driver is a loadable module now.
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Tue Jul 18 16:14:52 EST 2000 Hugh
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Basic character input/output for USA-19 now mostly works,
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fixed at 9600 baud for the moment.
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Sat Jul 8 11:11:48 EST 2000 Hugh
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First public release - nothing works except the firmware upload.
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Tested on PPC and x86 architectures, seems to behave...
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*/
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#include <linux/config.h>
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#include <linux/kernel.h>
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#include <linux/jiffies.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/tty.h>
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#include <linux/tty_driver.h>
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#include <linux/tty_flip.h>
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#include <linux/module.h>
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#include <linux/spinlock.h>
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#include <asm/uaccess.h>
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#include <linux/usb.h>
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#include "usb-serial.h"
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#include "keyspan.h"
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static int debug;
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/*
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* Version Information
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*/
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#define DRIVER_VERSION "v1.1.4"
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#define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu"
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#define DRIVER_DESC "Keyspan USB to Serial Converter Driver"
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#define INSTAT_BUFLEN 32
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#define GLOCONT_BUFLEN 64
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/* Per device and per port private data */
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struct keyspan_serial_private {
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const struct keyspan_device_details *device_details;
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struct urb *instat_urb;
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char instat_buf[INSTAT_BUFLEN];
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/* XXX this one probably will need a lock */
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struct urb *glocont_urb;
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char glocont_buf[GLOCONT_BUFLEN];
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};
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struct keyspan_port_private {
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/* Keep track of which input & output endpoints to use */
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int in_flip;
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int out_flip;
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/* Keep duplicate of device details in each port
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structure as well - simplifies some of the
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callback functions etc. */
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const struct keyspan_device_details *device_details;
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/* Input endpoints and buffer for this port */
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struct urb *in_urbs[2];
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char in_buffer[2][64];
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/* Output endpoints and buffer for this port */
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struct urb *out_urbs[2];
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char out_buffer[2][64];
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/* Input ack endpoint */
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struct urb *inack_urb;
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char inack_buffer[1];
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/* Output control endpoint */
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struct urb *outcont_urb;
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char outcont_buffer[64];
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/* Settings for the port */
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int baud;
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int old_baud;
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unsigned int cflag;
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unsigned int old_cflag;
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enum {flow_none, flow_cts, flow_xon} flow_control;
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int rts_state; /* Handshaking pins (outputs) */
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int dtr_state;
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int cts_state; /* Handshaking pins (inputs) */
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int dsr_state;
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int dcd_state;
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int ri_state;
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int break_on;
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unsigned long tx_start_time[2];
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int resend_cont; /* need to resend control packet */
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};
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/* Include Keyspan message headers. All current Keyspan Adapters
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make use of one of four message formats which are referred
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to as USA-26, USA-28 and USA-49, USA-90 by Keyspan and within this driver. */
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#include "keyspan_usa26msg.h"
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#include "keyspan_usa28msg.h"
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#include "keyspan_usa49msg.h"
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#include "keyspan_usa90msg.h"
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/* Functions used by new usb-serial code. */
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static int __init keyspan_init (void)
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{
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int retval;
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retval = usb_serial_register(&keyspan_pre_device);
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if (retval)
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goto failed_pre_device_register;
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retval = usb_serial_register(&keyspan_1port_device);
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if (retval)
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goto failed_1port_device_register;
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retval = usb_serial_register(&keyspan_2port_device);
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if (retval)
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goto failed_2port_device_register;
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retval = usb_serial_register(&keyspan_4port_device);
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if (retval)
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goto failed_4port_device_register;
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retval = usb_register(&keyspan_driver);
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if (retval)
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goto failed_usb_register;
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info(DRIVER_VERSION ":" DRIVER_DESC);
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return 0;
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failed_usb_register:
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usb_serial_deregister(&keyspan_4port_device);
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failed_4port_device_register:
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usb_serial_deregister(&keyspan_2port_device);
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failed_2port_device_register:
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usb_serial_deregister(&keyspan_1port_device);
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failed_1port_device_register:
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usb_serial_deregister(&keyspan_pre_device);
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failed_pre_device_register:
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return retval;
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}
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static void __exit keyspan_exit (void)
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{
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usb_deregister (&keyspan_driver);
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usb_serial_deregister (&keyspan_pre_device);
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usb_serial_deregister (&keyspan_1port_device);
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usb_serial_deregister (&keyspan_2port_device);
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usb_serial_deregister (&keyspan_4port_device);
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}
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module_init(keyspan_init);
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module_exit(keyspan_exit);
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static void keyspan_rx_throttle (struct usb_serial_port *port)
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{
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dbg("%s - port %d", __FUNCTION__, port->number);
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}
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static void keyspan_rx_unthrottle (struct usb_serial_port *port)
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{
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dbg("%s - port %d", __FUNCTION__, port->number);
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}
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static void keyspan_break_ctl (struct usb_serial_port *port, int break_state)
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{
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struct keyspan_port_private *p_priv;
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dbg("%s", __FUNCTION__);
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p_priv = usb_get_serial_port_data(port);
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if (break_state == -1)
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p_priv->break_on = 1;
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else
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p_priv->break_on = 0;
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keyspan_send_setup(port, 0);
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}
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static void keyspan_set_termios (struct usb_serial_port *port,
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struct termios *old_termios)
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{
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int baud_rate, device_port;
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struct keyspan_port_private *p_priv;
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const struct keyspan_device_details *d_details;
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unsigned int cflag;
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dbg("%s", __FUNCTION__);
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p_priv = usb_get_serial_port_data(port);
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d_details = p_priv->device_details;
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cflag = port->tty->termios->c_cflag;
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device_port = port->number - port->serial->minor;
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/* Baud rate calculation takes baud rate as an integer
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so other rates can be generated if desired. */
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baud_rate = tty_get_baud_rate(port->tty);
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/* If no match or invalid, don't change */
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if (baud_rate >= 0
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&& d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
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NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
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/* FIXME - more to do here to ensure rate changes cleanly */
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p_priv->baud = baud_rate;
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}
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/* set CTS/RTS handshake etc. */
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p_priv->cflag = cflag;
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p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
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keyspan_send_setup(port, 0);
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}
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static int keyspan_tiocmget(struct usb_serial_port *port, struct file *file)
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{
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unsigned int value;
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struct keyspan_port_private *p_priv;
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p_priv = usb_get_serial_port_data(port);
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value = ((p_priv->rts_state) ? TIOCM_RTS : 0) |
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((p_priv->dtr_state) ? TIOCM_DTR : 0) |
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((p_priv->cts_state) ? TIOCM_CTS : 0) |
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((p_priv->dsr_state) ? TIOCM_DSR : 0) |
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((p_priv->dcd_state) ? TIOCM_CAR : 0) |
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((p_priv->ri_state) ? TIOCM_RNG : 0);
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return value;
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}
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static int keyspan_tiocmset(struct usb_serial_port *port, struct file *file,
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unsigned int set, unsigned int clear)
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{
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struct keyspan_port_private *p_priv;
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p_priv = usb_get_serial_port_data(port);
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if (set & TIOCM_RTS)
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p_priv->rts_state = 1;
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if (set & TIOCM_DTR)
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p_priv->dtr_state = 1;
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if (clear & TIOCM_RTS)
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p_priv->rts_state = 0;
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if (clear & TIOCM_DTR)
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p_priv->dtr_state = 0;
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keyspan_send_setup(port, 0);
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return 0;
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}
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static int keyspan_ioctl(struct usb_serial_port *port, struct file *file,
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unsigned int cmd, unsigned long arg)
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{
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return -ENOIOCTLCMD;
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}
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/* Write function is similar for the four protocols used
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with only a minor change for usa90 (usa19hs) required */
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static int keyspan_write(struct usb_serial_port *port,
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const unsigned char *buf, int count)
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{
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struct keyspan_port_private *p_priv;
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const struct keyspan_device_details *d_details;
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int flip;
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int left, todo;
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struct urb *this_urb;
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int err, maxDataLen, dataOffset;
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p_priv = usb_get_serial_port_data(port);
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d_details = p_priv->device_details;
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if (d_details->msg_format == msg_usa90) {
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maxDataLen = 64;
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dataOffset = 0;
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} else {
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maxDataLen = 63;
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dataOffset = 1;
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}
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dbg("%s - for port %d (%d chars), flip=%d",
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__FUNCTION__, port->number, count, p_priv->out_flip);
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for (left = count; left > 0; left -= todo) {
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todo = left;
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if (todo > maxDataLen)
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todo = maxDataLen;
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flip = p_priv->out_flip;
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/* Check we have a valid urb/endpoint before we use it... */
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if ((this_urb = p_priv->out_urbs[flip]) == NULL) {
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/* no bulk out, so return 0 bytes written */
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dbg("%s - no output urb :(", __FUNCTION__);
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return count;
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}
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dbg("%s - endpoint %d flip %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe), flip);
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if (this_urb->status == -EINPROGRESS) {
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if (time_before(jiffies, p_priv->tx_start_time[flip] + 10 * HZ))
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break;
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usb_unlink_urb(this_urb);
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break;
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}
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/* First byte in buffer is "last flag" (except for usa19hx) - unused so
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for now so set to zero */
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((char *)this_urb->transfer_buffer)[0] = 0;
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memcpy (this_urb->transfer_buffer + dataOffset, buf, todo);
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buf += todo;
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/* send the data out the bulk port */
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this_urb->transfer_buffer_length = todo + dataOffset;
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this_urb->dev = port->serial->dev;
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if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
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dbg("usb_submit_urb(write bulk) failed (%d)", err);
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}
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p_priv->tx_start_time[flip] = jiffies;
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/* Flip for next time if usa26 or usa28 interface
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(not used on usa49) */
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p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip;
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}
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return count - left;
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}
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static void usa26_indat_callback(struct urb *urb, struct pt_regs *regs)
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{
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int i, err;
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int endpoint;
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struct usb_serial_port *port;
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struct tty_struct *tty;
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unsigned char *data = urb->transfer_buffer;
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dbg ("%s", __FUNCTION__);
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endpoint = usb_pipeendpoint(urb->pipe);
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if (urb->status) {
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dbg("%s - nonzero status: %x on endpoint %d.",
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__FUNCTION__, urb->status, endpoint);
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return;
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}
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port = (struct usb_serial_port *) urb->context;
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tty = port->tty;
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if (urb->actual_length) {
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/* 0x80 bit is error flag */
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if ((data[0] & 0x80) == 0) {
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/* no errors on individual bytes, only possible overrun err*/
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if (data[0] & RXERROR_OVERRUN)
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err = TTY_OVERRUN;
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else err = 0;
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for (i = 1; i < urb->actual_length ; ++i) {
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tty_insert_flip_char(tty, data[i], err);
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}
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} else {
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/* some bytes had errors, every byte has status */
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dbg("%s - RX error!!!!", __FUNCTION__);
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for (i = 0; i + 1 < urb->actual_length; i += 2) {
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int stat = data[i], flag = 0;
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if (stat & RXERROR_OVERRUN)
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flag |= TTY_OVERRUN;
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if (stat & RXERROR_FRAMING)
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flag |= TTY_FRAME;
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if (stat & RXERROR_PARITY)
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flag |= TTY_PARITY;
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/* XXX should handle break (0x10) */
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tty_insert_flip_char(tty, data[i+1], flag);
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}
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}
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tty_flip_buffer_push(tty);
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}
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/* Resubmit urb so we continue receiving */
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urb->dev = port->serial->dev;
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if (port->open_count)
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if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
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dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
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}
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return;
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}
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/* Outdat handling is common for all devices */
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static void usa2x_outdat_callback(struct urb *urb, struct pt_regs *regs)
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{
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struct usb_serial_port *port;
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struct keyspan_port_private *p_priv;
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port = (struct usb_serial_port *) urb->context;
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p_priv = usb_get_serial_port_data(port);
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dbg ("%s - urb %d", __FUNCTION__, urb == p_priv->out_urbs[1]);
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if (port->open_count)
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schedule_work(&port->work);
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}
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static void usa26_inack_callback(struct urb *urb, struct pt_regs *regs)
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{
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dbg ("%s", __FUNCTION__);
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}
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static void usa26_outcont_callback(struct urb *urb, struct pt_regs *regs)
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{
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struct usb_serial_port *port;
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struct keyspan_port_private *p_priv;
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port = (struct usb_serial_port *) urb->context;
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p_priv = usb_get_serial_port_data(port);
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if (p_priv->resend_cont) {
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dbg ("%s - sending setup", __FUNCTION__);
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keyspan_usa26_send_setup(port->serial, port, p_priv->resend_cont - 1);
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}
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}
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|
|
static void usa26_instat_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
unsigned char *data = urb->transfer_buffer;
|
|
struct keyspan_usa26_portStatusMessage *msg;
|
|
struct usb_serial *serial;
|
|
struct usb_serial_port *port;
|
|
struct keyspan_port_private *p_priv;
|
|
int old_dcd_state, err;
|
|
|
|
serial = (struct usb_serial *) urb->context;
|
|
|
|
if (urb->status) {
|
|
dbg("%s - nonzero status: %x", __FUNCTION__, urb->status);
|
|
return;
|
|
}
|
|
if (urb->actual_length != 9) {
|
|
dbg("%s - %d byte report??", __FUNCTION__, urb->actual_length);
|
|
goto exit;
|
|
}
|
|
|
|
msg = (struct keyspan_usa26_portStatusMessage *)data;
|
|
|
|
#if 0
|
|
dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d",
|
|
__FUNCTION__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff,
|
|
msg->_txXoff, msg->rxEnabled, msg->controlResponse);
|
|
#endif
|
|
|
|
/* Now do something useful with the data */
|
|
|
|
|
|
/* Check port number from message and retrieve private data */
|
|
if (msg->port >= serial->num_ports) {
|
|
dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->port);
|
|
goto exit;
|
|
}
|
|
port = serial->port[msg->port];
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
/* Update handshaking pin state information */
|
|
old_dcd_state = p_priv->dcd_state;
|
|
p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0);
|
|
p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
|
|
p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0);
|
|
p_priv->ri_state = ((msg->ri) ? 1 : 0);
|
|
|
|
if (port->tty && !C_CLOCAL(port->tty)
|
|
&& old_dcd_state != p_priv->dcd_state) {
|
|
if (old_dcd_state)
|
|
tty_hangup(port->tty);
|
|
/* else */
|
|
/* wake_up_interruptible(&p_priv->open_wait); */
|
|
}
|
|
|
|
/* Resubmit urb so we continue receiving */
|
|
urb->dev = serial->dev;
|
|
if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
|
|
}
|
|
exit: ;
|
|
}
|
|
|
|
static void usa26_glocont_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
}
|
|
|
|
|
|
static void usa28_indat_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
int i, err;
|
|
struct usb_serial_port *port;
|
|
struct tty_struct *tty;
|
|
unsigned char *data;
|
|
struct keyspan_port_private *p_priv;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
port = (struct usb_serial_port *) urb->context;
|
|
p_priv = usb_get_serial_port_data(port);
|
|
data = urb->transfer_buffer;
|
|
|
|
if (urb != p_priv->in_urbs[p_priv->in_flip])
|
|
return;
|
|
|
|
do {
|
|
if (urb->status) {
|
|
dbg("%s - nonzero status: %x on endpoint %d.",
|
|
__FUNCTION__, urb->status, usb_pipeendpoint(urb->pipe));
|
|
return;
|
|
}
|
|
|
|
port = (struct usb_serial_port *) urb->context;
|
|
p_priv = usb_get_serial_port_data(port);
|
|
data = urb->transfer_buffer;
|
|
|
|
tty = port->tty;
|
|
if (urb->actual_length) {
|
|
for (i = 0; i < urb->actual_length ; ++i) {
|
|
tty_insert_flip_char(tty, data[i], 0);
|
|
}
|
|
tty_flip_buffer_push(tty);
|
|
}
|
|
|
|
/* Resubmit urb so we continue receiving */
|
|
urb->dev = port->serial->dev;
|
|
if (port->open_count)
|
|
if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
|
|
}
|
|
p_priv->in_flip ^= 1;
|
|
|
|
urb = p_priv->in_urbs[p_priv->in_flip];
|
|
} while (urb->status != -EINPROGRESS);
|
|
}
|
|
|
|
static void usa28_inack_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
dbg ("%s", __FUNCTION__);
|
|
}
|
|
|
|
static void usa28_outcont_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
struct usb_serial_port *port;
|
|
struct keyspan_port_private *p_priv;
|
|
|
|
port = (struct usb_serial_port *) urb->context;
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
if (p_priv->resend_cont) {
|
|
dbg ("%s - sending setup", __FUNCTION__);
|
|
keyspan_usa28_send_setup(port->serial, port, p_priv->resend_cont - 1);
|
|
}
|
|
}
|
|
|
|
static void usa28_instat_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
int err;
|
|
unsigned char *data = urb->transfer_buffer;
|
|
struct keyspan_usa28_portStatusMessage *msg;
|
|
struct usb_serial *serial;
|
|
struct usb_serial_port *port;
|
|
struct keyspan_port_private *p_priv;
|
|
int old_dcd_state;
|
|
|
|
serial = (struct usb_serial *) urb->context;
|
|
|
|
if (urb->status) {
|
|
dbg("%s - nonzero status: %x", __FUNCTION__, urb->status);
|
|
return;
|
|
}
|
|
|
|
if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) {
|
|
dbg("%s - bad length %d", __FUNCTION__, urb->actual_length);
|
|
goto exit;
|
|
}
|
|
|
|
/*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __FUNCTION__
|
|
data[0], data[1], data[2], data[3], data[4], data[5],
|
|
data[6], data[7], data[8], data[9], data[10], data[11]);*/
|
|
|
|
/* Now do something useful with the data */
|
|
msg = (struct keyspan_usa28_portStatusMessage *)data;
|
|
|
|
|
|
/* Check port number from message and retrieve private data */
|
|
if (msg->port >= serial->num_ports) {
|
|
dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->port);
|
|
goto exit;
|
|
}
|
|
port = serial->port[msg->port];
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
/* Update handshaking pin state information */
|
|
old_dcd_state = p_priv->dcd_state;
|
|
p_priv->cts_state = ((msg->cts) ? 1 : 0);
|
|
p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
|
|
p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
|
|
p_priv->ri_state = ((msg->ri) ? 1 : 0);
|
|
|
|
if (port->tty && !C_CLOCAL(port->tty)
|
|
&& old_dcd_state != p_priv->dcd_state) {
|
|
if (old_dcd_state)
|
|
tty_hangup(port->tty);
|
|
/* else */
|
|
/* wake_up_interruptible(&p_priv->open_wait); */
|
|
}
|
|
|
|
/* Resubmit urb so we continue receiving */
|
|
urb->dev = serial->dev;
|
|
if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
|
|
}
|
|
exit: ;
|
|
}
|
|
|
|
static void usa28_glocont_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
dbg ("%s", __FUNCTION__);
|
|
}
|
|
|
|
|
|
static void usa49_glocont_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
struct usb_serial *serial;
|
|
struct usb_serial_port *port;
|
|
struct keyspan_port_private *p_priv;
|
|
int i;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
serial = (struct usb_serial *) urb->context;
|
|
for (i = 0; i < serial->num_ports; ++i) {
|
|
port = serial->port[i];
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
if (p_priv->resend_cont) {
|
|
dbg ("%s - sending setup", __FUNCTION__);
|
|
keyspan_usa49_send_setup(serial, port, p_priv->resend_cont - 1);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* This is actually called glostat in the Keyspan
|
|
doco */
|
|
static void usa49_instat_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
int err;
|
|
unsigned char *data = urb->transfer_buffer;
|
|
struct keyspan_usa49_portStatusMessage *msg;
|
|
struct usb_serial *serial;
|
|
struct usb_serial_port *port;
|
|
struct keyspan_port_private *p_priv;
|
|
int old_dcd_state;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
serial = (struct usb_serial *) urb->context;
|
|
|
|
if (urb->status) {
|
|
dbg("%s - nonzero status: %x", __FUNCTION__, urb->status);
|
|
return;
|
|
}
|
|
|
|
if (urb->actual_length != sizeof(struct keyspan_usa49_portStatusMessage)) {
|
|
dbg("%s - bad length %d", __FUNCTION__, urb->actual_length);
|
|
goto exit;
|
|
}
|
|
|
|
/*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __FUNCTION__,
|
|
data[0], data[1], data[2], data[3], data[4], data[5],
|
|
data[6], data[7], data[8], data[9], data[10]);*/
|
|
|
|
/* Now do something useful with the data */
|
|
msg = (struct keyspan_usa49_portStatusMessage *)data;
|
|
|
|
/* Check port number from message and retrieve private data */
|
|
if (msg->portNumber >= serial->num_ports) {
|
|
dbg ("%s - Unexpected port number %d", __FUNCTION__, msg->portNumber);
|
|
goto exit;
|
|
}
|
|
port = serial->port[msg->portNumber];
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
/* Update handshaking pin state information */
|
|
old_dcd_state = p_priv->dcd_state;
|
|
p_priv->cts_state = ((msg->cts) ? 1 : 0);
|
|
p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
|
|
p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
|
|
p_priv->ri_state = ((msg->ri) ? 1 : 0);
|
|
|
|
if (port->tty && !C_CLOCAL(port->tty)
|
|
&& old_dcd_state != p_priv->dcd_state) {
|
|
if (old_dcd_state)
|
|
tty_hangup(port->tty);
|
|
/* else */
|
|
/* wake_up_interruptible(&p_priv->open_wait); */
|
|
}
|
|
|
|
/* Resubmit urb so we continue receiving */
|
|
urb->dev = serial->dev;
|
|
|
|
if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
|
|
}
|
|
exit: ;
|
|
}
|
|
|
|
static void usa49_inack_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
dbg ("%s", __FUNCTION__);
|
|
}
|
|
|
|
static void usa49_indat_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
int i, err;
|
|
int endpoint;
|
|
struct usb_serial_port *port;
|
|
struct tty_struct *tty;
|
|
unsigned char *data = urb->transfer_buffer;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
endpoint = usb_pipeendpoint(urb->pipe);
|
|
|
|
if (urb->status) {
|
|
dbg("%s - nonzero status: %x on endpoint %d.", __FUNCTION__,
|
|
urb->status, endpoint);
|
|
return;
|
|
}
|
|
|
|
port = (struct usb_serial_port *) urb->context;
|
|
tty = port->tty;
|
|
if (urb->actual_length) {
|
|
/* 0x80 bit is error flag */
|
|
if ((data[0] & 0x80) == 0) {
|
|
/* no error on any byte */
|
|
for (i = 1; i < urb->actual_length ; ++i) {
|
|
tty_insert_flip_char(tty, data[i], 0);
|
|
}
|
|
} else {
|
|
/* some bytes had errors, every byte has status */
|
|
for (i = 0; i + 1 < urb->actual_length; i += 2) {
|
|
int stat = data[i], flag = 0;
|
|
if (stat & RXERROR_OVERRUN)
|
|
flag |= TTY_OVERRUN;
|
|
if (stat & RXERROR_FRAMING)
|
|
flag |= TTY_FRAME;
|
|
if (stat & RXERROR_PARITY)
|
|
flag |= TTY_PARITY;
|
|
/* XXX should handle break (0x10) */
|
|
tty_insert_flip_char(tty, data[i+1], flag);
|
|
}
|
|
}
|
|
tty_flip_buffer_push(tty);
|
|
}
|
|
|
|
/* Resubmit urb so we continue receiving */
|
|
urb->dev = port->serial->dev;
|
|
if (port->open_count)
|
|
if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
|
|
}
|
|
}
|
|
|
|
/* not used, usa-49 doesn't have per-port control endpoints */
|
|
static void usa49_outcont_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
dbg ("%s", __FUNCTION__);
|
|
}
|
|
|
|
static void usa90_indat_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
int i, err;
|
|
int endpoint;
|
|
struct usb_serial_port *port;
|
|
struct keyspan_port_private *p_priv;
|
|
struct tty_struct *tty;
|
|
unsigned char *data = urb->transfer_buffer;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
endpoint = usb_pipeendpoint(urb->pipe);
|
|
|
|
|
|
if (urb->status) {
|
|
dbg("%s - nonzero status: %x on endpoint %d.",
|
|
__FUNCTION__, urb->status, endpoint);
|
|
return;
|
|
}
|
|
|
|
port = (struct usb_serial_port *) urb->context;
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
tty = port->tty;
|
|
if (urb->actual_length) {
|
|
|
|
/* if current mode is DMA, looks like usa28 format
|
|
otherwise looks like usa26 data format */
|
|
|
|
if (p_priv->baud > 57600) {
|
|
for (i = 0; i < urb->actual_length ; ++i)
|
|
tty_insert_flip_char(tty, data[i], 0);
|
|
}
|
|
else {
|
|
|
|
/* 0x80 bit is error flag */
|
|
if ((data[0] & 0x80) == 0) {
|
|
/* no errors on individual bytes, only possible overrun err*/
|
|
if (data[0] & RXERROR_OVERRUN)
|
|
err = TTY_OVERRUN;
|
|
else err = 0;
|
|
for (i = 1; i < urb->actual_length ; ++i)
|
|
tty_insert_flip_char(tty, data[i], err);
|
|
|
|
}
|
|
else {
|
|
/* some bytes had errors, every byte has status */
|
|
dbg("%s - RX error!!!!", __FUNCTION__);
|
|
for (i = 0; i + 1 < urb->actual_length; i += 2) {
|
|
int stat = data[i], flag = 0;
|
|
if (stat & RXERROR_OVERRUN)
|
|
flag |= TTY_OVERRUN;
|
|
if (stat & RXERROR_FRAMING)
|
|
flag |= TTY_FRAME;
|
|
if (stat & RXERROR_PARITY)
|
|
flag |= TTY_PARITY;
|
|
/* XXX should handle break (0x10) */
|
|
tty_insert_flip_char(tty, data[i+1], flag);
|
|
}
|
|
}
|
|
}
|
|
tty_flip_buffer_push(tty);
|
|
}
|
|
|
|
/* Resubmit urb so we continue receiving */
|
|
urb->dev = port->serial->dev;
|
|
if (port->open_count)
|
|
if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
|
|
}
|
|
return;
|
|
}
|
|
|
|
|
|
static void usa90_instat_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
unsigned char *data = urb->transfer_buffer;
|
|
struct keyspan_usa90_portStatusMessage *msg;
|
|
struct usb_serial *serial;
|
|
struct usb_serial_port *port;
|
|
struct keyspan_port_private *p_priv;
|
|
int old_dcd_state, err;
|
|
|
|
serial = (struct usb_serial *) urb->context;
|
|
|
|
if (urb->status) {
|
|
dbg("%s - nonzero status: %x", __FUNCTION__, urb->status);
|
|
return;
|
|
}
|
|
if (urb->actual_length < 14) {
|
|
dbg("%s - %d byte report??", __FUNCTION__, urb->actual_length);
|
|
goto exit;
|
|
}
|
|
|
|
msg = (struct keyspan_usa90_portStatusMessage *)data;
|
|
|
|
/* Now do something useful with the data */
|
|
|
|
port = serial->port[0];
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
/* Update handshaking pin state information */
|
|
old_dcd_state = p_priv->dcd_state;
|
|
p_priv->cts_state = ((msg->cts) ? 1 : 0);
|
|
p_priv->dsr_state = ((msg->dsr) ? 1 : 0);
|
|
p_priv->dcd_state = ((msg->dcd) ? 1 : 0);
|
|
p_priv->ri_state = ((msg->ri) ? 1 : 0);
|
|
|
|
if (port->tty && !C_CLOCAL(port->tty)
|
|
&& old_dcd_state != p_priv->dcd_state) {
|
|
if (old_dcd_state)
|
|
tty_hangup(port->tty);
|
|
/* else */
|
|
/* wake_up_interruptible(&p_priv->open_wait); */
|
|
}
|
|
|
|
/* Resubmit urb so we continue receiving */
|
|
urb->dev = serial->dev;
|
|
if ((err = usb_submit_urb(urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err);
|
|
}
|
|
exit:
|
|
;
|
|
}
|
|
|
|
static void usa90_outcont_callback(struct urb *urb, struct pt_regs *regs)
|
|
{
|
|
struct usb_serial_port *port;
|
|
struct keyspan_port_private *p_priv;
|
|
|
|
port = (struct usb_serial_port *) urb->context;
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
if (p_priv->resend_cont) {
|
|
dbg ("%s - sending setup", __FUNCTION__);
|
|
keyspan_usa90_send_setup(port->serial, port, p_priv->resend_cont - 1);
|
|
}
|
|
}
|
|
|
|
static int keyspan_write_room (struct usb_serial_port *port)
|
|
{
|
|
struct keyspan_port_private *p_priv;
|
|
const struct keyspan_device_details *d_details;
|
|
int flip;
|
|
int data_len;
|
|
struct urb *this_urb;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
p_priv = usb_get_serial_port_data(port);
|
|
d_details = p_priv->device_details;
|
|
|
|
if (d_details->msg_format == msg_usa90)
|
|
data_len = 64;
|
|
else
|
|
data_len = 63;
|
|
|
|
flip = p_priv->out_flip;
|
|
|
|
/* Check both endpoints to see if any are available. */
|
|
if ((this_urb = p_priv->out_urbs[flip]) != NULL) {
|
|
if (this_urb->status != -EINPROGRESS)
|
|
return (data_len);
|
|
flip = (flip + 1) & d_details->outdat_endp_flip;
|
|
if ((this_urb = p_priv->out_urbs[flip]) != NULL)
|
|
if (this_urb->status != -EINPROGRESS)
|
|
return (data_len);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
|
|
static int keyspan_chars_in_buffer (struct usb_serial_port *port)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
|
|
static int keyspan_open (struct usb_serial_port *port, struct file *filp)
|
|
{
|
|
struct keyspan_port_private *p_priv;
|
|
struct keyspan_serial_private *s_priv;
|
|
struct usb_serial *serial = port->serial;
|
|
const struct keyspan_device_details *d_details;
|
|
int i, err;
|
|
int baud_rate, device_port;
|
|
struct urb *urb;
|
|
unsigned int cflag;
|
|
|
|
s_priv = usb_get_serial_data(serial);
|
|
p_priv = usb_get_serial_port_data(port);
|
|
d_details = p_priv->device_details;
|
|
|
|
dbg("%s - port%d.", __FUNCTION__, port->number);
|
|
|
|
/* Set some sane defaults */
|
|
p_priv->rts_state = 1;
|
|
p_priv->dtr_state = 1;
|
|
p_priv->baud = 9600;
|
|
|
|
/* force baud and lcr to be set on open */
|
|
p_priv->old_baud = 0;
|
|
p_priv->old_cflag = 0;
|
|
|
|
p_priv->out_flip = 0;
|
|
p_priv->in_flip = 0;
|
|
|
|
/* Reset low level data toggle and start reading from endpoints */
|
|
for (i = 0; i < 2; i++) {
|
|
if ((urb = p_priv->in_urbs[i]) == NULL)
|
|
continue;
|
|
urb->dev = serial->dev;
|
|
|
|
/* make sure endpoint data toggle is synchronized with the device */
|
|
|
|
usb_clear_halt(urb->dev, urb->pipe);
|
|
|
|
if ((err = usb_submit_urb(urb, GFP_KERNEL)) != 0) {
|
|
dbg("%s - submit urb %d failed (%d)", __FUNCTION__, i, err);
|
|
}
|
|
}
|
|
|
|
/* Reset low level data toggle on out endpoints */
|
|
for (i = 0; i < 2; i++) {
|
|
if ((urb = p_priv->out_urbs[i]) == NULL)
|
|
continue;
|
|
urb->dev = serial->dev;
|
|
/* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */
|
|
}
|
|
|
|
/* get the terminal config for the setup message now so we don't
|
|
* need to send 2 of them */
|
|
|
|
cflag = port->tty->termios->c_cflag;
|
|
device_port = port->number - port->serial->minor;
|
|
|
|
/* Baud rate calculation takes baud rate as an integer
|
|
so other rates can be generated if desired. */
|
|
baud_rate = tty_get_baud_rate(port->tty);
|
|
/* If no match or invalid, leave as default */
|
|
if (baud_rate >= 0
|
|
&& d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
|
|
NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
|
|
p_priv->baud = baud_rate;
|
|
}
|
|
|
|
/* set CTS/RTS handshake etc. */
|
|
p_priv->cflag = cflag;
|
|
p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
|
|
|
|
keyspan_send_setup(port, 1);
|
|
//mdelay(100);
|
|
//keyspan_set_termios(port, NULL);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static inline void stop_urb(struct urb *urb)
|
|
{
|
|
if (urb && urb->status == -EINPROGRESS)
|
|
usb_kill_urb(urb);
|
|
}
|
|
|
|
static void keyspan_close(struct usb_serial_port *port, struct file *filp)
|
|
{
|
|
int i;
|
|
struct usb_serial *serial = port->serial;
|
|
struct keyspan_serial_private *s_priv;
|
|
struct keyspan_port_private *p_priv;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
s_priv = usb_get_serial_data(serial);
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
p_priv->rts_state = 0;
|
|
p_priv->dtr_state = 0;
|
|
|
|
if (serial->dev) {
|
|
keyspan_send_setup(port, 2);
|
|
/* pilot-xfer seems to work best with this delay */
|
|
mdelay(100);
|
|
// keyspan_set_termios(port, NULL);
|
|
}
|
|
|
|
/*while (p_priv->outcont_urb->status == -EINPROGRESS) {
|
|
dbg("%s - urb in progress", __FUNCTION__);
|
|
}*/
|
|
|
|
p_priv->out_flip = 0;
|
|
p_priv->in_flip = 0;
|
|
|
|
if (serial->dev) {
|
|
/* Stop reading/writing urbs */
|
|
stop_urb(p_priv->inack_urb);
|
|
/* stop_urb(p_priv->outcont_urb); */
|
|
for (i = 0; i < 2; i++) {
|
|
stop_urb(p_priv->in_urbs[i]);
|
|
stop_urb(p_priv->out_urbs[i]);
|
|
}
|
|
}
|
|
port->tty = NULL;
|
|
}
|
|
|
|
|
|
/* download the firmware to a pre-renumeration device */
|
|
static int keyspan_fake_startup (struct usb_serial *serial)
|
|
{
|
|
int response;
|
|
const struct ezusb_hex_record *record;
|
|
char *fw_name;
|
|
|
|
dbg("Keyspan startup version %04x product %04x",
|
|
le16_to_cpu(serial->dev->descriptor.bcdDevice),
|
|
le16_to_cpu(serial->dev->descriptor.idProduct));
|
|
|
|
if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000) != 0x8000) {
|
|
dbg("Firmware already loaded. Quitting.");
|
|
return(1);
|
|
}
|
|
|
|
/* Select firmware image on the basis of idProduct */
|
|
switch (le16_to_cpu(serial->dev->descriptor.idProduct)) {
|
|
case keyspan_usa28_pre_product_id:
|
|
record = &keyspan_usa28_firmware[0];
|
|
fw_name = "USA28";
|
|
break;
|
|
|
|
case keyspan_usa28x_pre_product_id:
|
|
record = &keyspan_usa28x_firmware[0];
|
|
fw_name = "USA28X";
|
|
break;
|
|
|
|
case keyspan_usa28xa_pre_product_id:
|
|
record = &keyspan_usa28xa_firmware[0];
|
|
fw_name = "USA28XA";
|
|
break;
|
|
|
|
case keyspan_usa28xb_pre_product_id:
|
|
record = &keyspan_usa28xb_firmware[0];
|
|
fw_name = "USA28XB";
|
|
break;
|
|
|
|
case keyspan_usa19_pre_product_id:
|
|
record = &keyspan_usa19_firmware[0];
|
|
fw_name = "USA19";
|
|
break;
|
|
|
|
case keyspan_usa19qi_pre_product_id:
|
|
record = &keyspan_usa19qi_firmware[0];
|
|
fw_name = "USA19QI";
|
|
break;
|
|
|
|
case keyspan_mpr_pre_product_id:
|
|
record = &keyspan_mpr_firmware[0];
|
|
fw_name = "MPR";
|
|
break;
|
|
|
|
case keyspan_usa19qw_pre_product_id:
|
|
record = &keyspan_usa19qw_firmware[0];
|
|
fw_name = "USA19QI";
|
|
break;
|
|
|
|
case keyspan_usa18x_pre_product_id:
|
|
record = &keyspan_usa18x_firmware[0];
|
|
fw_name = "USA18X";
|
|
break;
|
|
|
|
case keyspan_usa19w_pre_product_id:
|
|
record = &keyspan_usa19w_firmware[0];
|
|
fw_name = "USA19W";
|
|
break;
|
|
|
|
case keyspan_usa49w_pre_product_id:
|
|
record = &keyspan_usa49w_firmware[0];
|
|
fw_name = "USA49W";
|
|
break;
|
|
|
|
case keyspan_usa49wlc_pre_product_id:
|
|
record = &keyspan_usa49wlc_firmware[0];
|
|
fw_name = "USA49WLC";
|
|
break;
|
|
|
|
default:
|
|
record = NULL;
|
|
fw_name = "Unknown";
|
|
break;
|
|
}
|
|
|
|
if (record == NULL) {
|
|
dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name);
|
|
return(1);
|
|
}
|
|
|
|
dbg("Uploading Keyspan %s firmware.", fw_name);
|
|
|
|
/* download the firmware image */
|
|
response = ezusb_set_reset(serial, 1);
|
|
|
|
while(record->address != 0xffff) {
|
|
response = ezusb_writememory(serial, record->address,
|
|
(unsigned char *)record->data,
|
|
record->data_size, 0xa0);
|
|
if (response < 0) {
|
|
dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan"
|
|
"firmware (%d %04X %p %d)\n",
|
|
response,
|
|
record->address, record->data, record->data_size);
|
|
break;
|
|
}
|
|
record++;
|
|
}
|
|
/* bring device out of reset. Renumeration will occur in a
|
|
moment and the new device will bind to the real driver */
|
|
response = ezusb_set_reset(serial, 0);
|
|
|
|
/* we don't want this device to have a driver assigned to it. */
|
|
return (1);
|
|
}
|
|
|
|
/* Helper functions used by keyspan_setup_urbs */
|
|
static struct urb *keyspan_setup_urb (struct usb_serial *serial, int endpoint,
|
|
int dir, void *ctx, char *buf, int len,
|
|
void (*callback)(struct urb *, struct pt_regs *regs))
|
|
{
|
|
struct urb *urb;
|
|
|
|
if (endpoint == -1)
|
|
return NULL; /* endpoint not needed */
|
|
|
|
dbg ("%s - alloc for endpoint %d.", __FUNCTION__, endpoint);
|
|
urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */
|
|
if (urb == NULL) {
|
|
dbg ("%s - alloc for endpoint %d failed.", __FUNCTION__, endpoint);
|
|
return NULL;
|
|
}
|
|
|
|
/* Fill URB using supplied data. */
|
|
usb_fill_bulk_urb(urb, serial->dev,
|
|
usb_sndbulkpipe(serial->dev, endpoint) | dir,
|
|
buf, len, callback, ctx);
|
|
|
|
return urb;
|
|
}
|
|
|
|
static struct callbacks {
|
|
void (*instat_callback)(struct urb *, struct pt_regs *regs);
|
|
void (*glocont_callback)(struct urb *, struct pt_regs *regs);
|
|
void (*indat_callback)(struct urb *, struct pt_regs *regs);
|
|
void (*outdat_callback)(struct urb *, struct pt_regs *regs);
|
|
void (*inack_callback)(struct urb *, struct pt_regs *regs);
|
|
void (*outcont_callback)(struct urb *, struct pt_regs *regs);
|
|
} keyspan_callbacks[] = {
|
|
{
|
|
/* msg_usa26 callbacks */
|
|
.instat_callback = usa26_instat_callback,
|
|
.glocont_callback = usa26_glocont_callback,
|
|
.indat_callback = usa26_indat_callback,
|
|
.outdat_callback = usa2x_outdat_callback,
|
|
.inack_callback = usa26_inack_callback,
|
|
.outcont_callback = usa26_outcont_callback,
|
|
}, {
|
|
/* msg_usa28 callbacks */
|
|
.instat_callback = usa28_instat_callback,
|
|
.glocont_callback = usa28_glocont_callback,
|
|
.indat_callback = usa28_indat_callback,
|
|
.outdat_callback = usa2x_outdat_callback,
|
|
.inack_callback = usa28_inack_callback,
|
|
.outcont_callback = usa28_outcont_callback,
|
|
}, {
|
|
/* msg_usa49 callbacks */
|
|
.instat_callback = usa49_instat_callback,
|
|
.glocont_callback = usa49_glocont_callback,
|
|
.indat_callback = usa49_indat_callback,
|
|
.outdat_callback = usa2x_outdat_callback,
|
|
.inack_callback = usa49_inack_callback,
|
|
.outcont_callback = usa49_outcont_callback,
|
|
}, {
|
|
/* msg_usa90 callbacks */
|
|
.instat_callback = usa90_instat_callback,
|
|
.glocont_callback = usa28_glocont_callback,
|
|
.indat_callback = usa90_indat_callback,
|
|
.outdat_callback = usa2x_outdat_callback,
|
|
.inack_callback = usa28_inack_callback,
|
|
.outcont_callback = usa90_outcont_callback,
|
|
}
|
|
};
|
|
|
|
/* Generic setup urbs function that uses
|
|
data in device_details */
|
|
static void keyspan_setup_urbs(struct usb_serial *serial)
|
|
{
|
|
int i, j;
|
|
struct keyspan_serial_private *s_priv;
|
|
const struct keyspan_device_details *d_details;
|
|
struct usb_serial_port *port;
|
|
struct keyspan_port_private *p_priv;
|
|
struct callbacks *cback;
|
|
int endp;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
s_priv = usb_get_serial_data(serial);
|
|
d_details = s_priv->device_details;
|
|
|
|
/* Setup values for the various callback routines */
|
|
cback = &keyspan_callbacks[d_details->msg_format];
|
|
|
|
/* Allocate and set up urbs for each one that is in use,
|
|
starting with instat endpoints */
|
|
s_priv->instat_urb = keyspan_setup_urb
|
|
(serial, d_details->instat_endpoint, USB_DIR_IN,
|
|
serial, s_priv->instat_buf, INSTAT_BUFLEN,
|
|
cback->instat_callback);
|
|
|
|
s_priv->glocont_urb = keyspan_setup_urb
|
|
(serial, d_details->glocont_endpoint, USB_DIR_OUT,
|
|
serial, s_priv->glocont_buf, GLOCONT_BUFLEN,
|
|
cback->glocont_callback);
|
|
|
|
/* Setup endpoints for each port specific thing */
|
|
for (i = 0; i < d_details->num_ports; i ++) {
|
|
port = serial->port[i];
|
|
p_priv = usb_get_serial_port_data(port);
|
|
|
|
/* Do indat endpoints first, once for each flip */
|
|
endp = d_details->indat_endpoints[i];
|
|
for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) {
|
|
p_priv->in_urbs[j] = keyspan_setup_urb
|
|
(serial, endp, USB_DIR_IN, port,
|
|
p_priv->in_buffer[j], 64,
|
|
cback->indat_callback);
|
|
}
|
|
for (; j < 2; ++j)
|
|
p_priv->in_urbs[j] = NULL;
|
|
|
|
/* outdat endpoints also have flip */
|
|
endp = d_details->outdat_endpoints[i];
|
|
for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) {
|
|
p_priv->out_urbs[j] = keyspan_setup_urb
|
|
(serial, endp, USB_DIR_OUT, port,
|
|
p_priv->out_buffer[j], 64,
|
|
cback->outdat_callback);
|
|
}
|
|
for (; j < 2; ++j)
|
|
p_priv->out_urbs[j] = NULL;
|
|
|
|
/* inack endpoint */
|
|
p_priv->inack_urb = keyspan_setup_urb
|
|
(serial, d_details->inack_endpoints[i], USB_DIR_IN,
|
|
port, p_priv->inack_buffer, 1, cback->inack_callback);
|
|
|
|
/* outcont endpoint */
|
|
p_priv->outcont_urb = keyspan_setup_urb
|
|
(serial, d_details->outcont_endpoints[i], USB_DIR_OUT,
|
|
port, p_priv->outcont_buffer, 64,
|
|
cback->outcont_callback);
|
|
}
|
|
|
|
}
|
|
|
|
/* usa19 function doesn't require prescaler */
|
|
static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
|
|
u8 *rate_low, u8 *prescaler, int portnum)
|
|
{
|
|
u32 b16, /* baud rate times 16 (actual rate used internally) */
|
|
div, /* divisor */
|
|
cnt; /* inverse of divisor (programmed into 8051) */
|
|
|
|
dbg ("%s - %d.", __FUNCTION__, baud_rate);
|
|
|
|
/* prevent divide by zero... */
|
|
if( (b16 = (baud_rate * 16L)) == 0) {
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
|
|
/* Any "standard" rate over 57k6 is marginal on the USA-19
|
|
as we run out of divisor resolution. */
|
|
if (baud_rate > 57600) {
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
|
|
/* calculate the divisor and the counter (its inverse) */
|
|
if( (div = (baudclk / b16)) == 0) {
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
else {
|
|
cnt = 0 - div;
|
|
}
|
|
|
|
if(div > 0xffff) {
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
|
|
/* return the counter values if non-null */
|
|
if (rate_low) {
|
|
*rate_low = (u8) (cnt & 0xff);
|
|
}
|
|
if (rate_hi) {
|
|
*rate_hi = (u8) ((cnt >> 8) & 0xff);
|
|
}
|
|
if (rate_low && rate_hi) {
|
|
dbg ("%s - %d %02x %02x.", __FUNCTION__, baud_rate, *rate_hi, *rate_low);
|
|
}
|
|
|
|
return (KEYSPAN_BAUD_RATE_OK);
|
|
}
|
|
|
|
/* usa19hs function doesn't require prescaler */
|
|
static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
|
|
u8 *rate_low, u8 *prescaler, int portnum)
|
|
{
|
|
u32 b16, /* baud rate times 16 (actual rate used internally) */
|
|
div; /* divisor */
|
|
|
|
dbg ("%s - %d.", __FUNCTION__, baud_rate);
|
|
|
|
/* prevent divide by zero... */
|
|
if( (b16 = (baud_rate * 16L)) == 0)
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
|
|
|
|
|
|
/* calculate the divisor */
|
|
if( (div = (baudclk / b16)) == 0)
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
|
|
if(div > 0xffff)
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
|
|
/* return the counter values if non-null */
|
|
if (rate_low)
|
|
*rate_low = (u8) (div & 0xff);
|
|
|
|
if (rate_hi)
|
|
*rate_hi = (u8) ((div >> 8) & 0xff);
|
|
|
|
if (rate_low && rate_hi)
|
|
dbg ("%s - %d %02x %02x.", __FUNCTION__, baud_rate, *rate_hi, *rate_low);
|
|
|
|
return (KEYSPAN_BAUD_RATE_OK);
|
|
}
|
|
|
|
static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
|
|
u8 *rate_low, u8 *prescaler, int portnum)
|
|
{
|
|
u32 b16, /* baud rate times 16 (actual rate used internally) */
|
|
clk, /* clock with 13/8 prescaler */
|
|
div, /* divisor using 13/8 prescaler */
|
|
res, /* resulting baud rate using 13/8 prescaler */
|
|
diff, /* error using 13/8 prescaler */
|
|
smallest_diff;
|
|
u8 best_prescaler;
|
|
int i;
|
|
|
|
dbg ("%s - %d.", __FUNCTION__, baud_rate);
|
|
|
|
/* prevent divide by zero */
|
|
if( (b16 = baud_rate * 16L) == 0) {
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
|
|
/* Calculate prescaler by trying them all and looking
|
|
for best fit */
|
|
|
|
/* start with largest possible difference */
|
|
smallest_diff = 0xffffffff;
|
|
|
|
/* 0 is an invalid prescaler, used as a flag */
|
|
best_prescaler = 0;
|
|
|
|
for(i = 8; i <= 0xff; ++i) {
|
|
clk = (baudclk * 8) / (u32) i;
|
|
|
|
if( (div = clk / b16) == 0) {
|
|
continue;
|
|
}
|
|
|
|
res = clk / div;
|
|
diff= (res > b16) ? (res-b16) : (b16-res);
|
|
|
|
if(diff < smallest_diff) {
|
|
best_prescaler = i;
|
|
smallest_diff = diff;
|
|
}
|
|
}
|
|
|
|
if(best_prescaler == 0) {
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
|
|
clk = (baudclk * 8) / (u32) best_prescaler;
|
|
div = clk / b16;
|
|
|
|
/* return the divisor and prescaler if non-null */
|
|
if (rate_low) {
|
|
*rate_low = (u8) (div & 0xff);
|
|
}
|
|
if (rate_hi) {
|
|
*rate_hi = (u8) ((div >> 8) & 0xff);
|
|
}
|
|
if (prescaler) {
|
|
*prescaler = best_prescaler;
|
|
/* dbg("%s - %d %d", __FUNCTION__, *prescaler, div); */
|
|
}
|
|
return (KEYSPAN_BAUD_RATE_OK);
|
|
}
|
|
|
|
/* USA-28 supports different maximum baud rates on each port */
|
|
static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi,
|
|
u8 *rate_low, u8 *prescaler, int portnum)
|
|
{
|
|
u32 b16, /* baud rate times 16 (actual rate used internally) */
|
|
div, /* divisor */
|
|
cnt; /* inverse of divisor (programmed into 8051) */
|
|
|
|
dbg ("%s - %d.", __FUNCTION__, baud_rate);
|
|
|
|
/* prevent divide by zero */
|
|
if ((b16 = baud_rate * 16L) == 0)
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
|
|
/* calculate the divisor and the counter (its inverse) */
|
|
if ((div = (KEYSPAN_USA28_BAUDCLK / b16)) == 0) {
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
else {
|
|
cnt = 0 - div;
|
|
}
|
|
|
|
/* check for out of range, based on portnum,
|
|
and return result */
|
|
if(portnum == 0) {
|
|
if(div > 0xffff)
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
else {
|
|
if(portnum == 1) {
|
|
if(div > 0xff) {
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
}
|
|
else {
|
|
return (KEYSPAN_INVALID_BAUD_RATE);
|
|
}
|
|
}
|
|
|
|
/* return the counter values if not NULL
|
|
(port 1 will ignore retHi) */
|
|
if (rate_low) {
|
|
*rate_low = (u8) (cnt & 0xff);
|
|
}
|
|
if (rate_hi) {
|
|
*rate_hi = (u8) ((cnt >> 8) & 0xff);
|
|
}
|
|
dbg ("%s - %d OK.", __FUNCTION__, baud_rate);
|
|
return (KEYSPAN_BAUD_RATE_OK);
|
|
}
|
|
|
|
static int keyspan_usa26_send_setup(struct usb_serial *serial,
|
|
struct usb_serial_port *port,
|
|
int reset_port)
|
|
{
|
|
struct keyspan_usa26_portControlMessage msg;
|
|
struct keyspan_serial_private *s_priv;
|
|
struct keyspan_port_private *p_priv;
|
|
const struct keyspan_device_details *d_details;
|
|
int outcont_urb;
|
|
struct urb *this_urb;
|
|
int device_port, err;
|
|
|
|
dbg ("%s reset=%d", __FUNCTION__, reset_port);
|
|
|
|
s_priv = usb_get_serial_data(serial);
|
|
p_priv = usb_get_serial_port_data(port);
|
|
d_details = s_priv->device_details;
|
|
device_port = port->number - port->serial->minor;
|
|
|
|
outcont_urb = d_details->outcont_endpoints[port->number];
|
|
this_urb = p_priv->outcont_urb;
|
|
|
|
dbg("%s - endpoint %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe));
|
|
|
|
/* Make sure we have an urb then send the message */
|
|
if (this_urb == NULL) {
|
|
dbg("%s - oops no urb.", __FUNCTION__);
|
|
return -1;
|
|
}
|
|
|
|
/* Save reset port val for resend.
|
|
Don't overwrite resend for close condition. */
|
|
if (p_priv->resend_cont != 3)
|
|
p_priv->resend_cont = reset_port + 1;
|
|
if (this_urb->status == -EINPROGRESS) {
|
|
/* dbg ("%s - already writing", __FUNCTION__); */
|
|
mdelay(5);
|
|
return(-1);
|
|
}
|
|
|
|
memset(&msg, 0, sizeof (struct keyspan_usa26_portControlMessage));
|
|
|
|
/* Only set baud rate if it's changed */
|
|
if (p_priv->old_baud != p_priv->baud) {
|
|
p_priv->old_baud = p_priv->baud;
|
|
msg.setClocking = 0xff;
|
|
if (d_details->calculate_baud_rate
|
|
(p_priv->baud, d_details->baudclk, &msg.baudHi,
|
|
&msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
|
|
dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__,
|
|
p_priv->baud);
|
|
msg.baudLo = 0;
|
|
msg.baudHi = 125; /* Values for 9600 baud */
|
|
msg.prescaler = 10;
|
|
}
|
|
msg.setPrescaler = 0xff;
|
|
}
|
|
|
|
msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
|
|
switch (p_priv->cflag & CSIZE) {
|
|
case CS5:
|
|
msg.lcr |= USA_DATABITS_5;
|
|
break;
|
|
case CS6:
|
|
msg.lcr |= USA_DATABITS_6;
|
|
break;
|
|
case CS7:
|
|
msg.lcr |= USA_DATABITS_7;
|
|
break;
|
|
case CS8:
|
|
msg.lcr |= USA_DATABITS_8;
|
|
break;
|
|
}
|
|
if (p_priv->cflag & PARENB) {
|
|
/* note USA_PARITY_NONE == 0 */
|
|
msg.lcr |= (p_priv->cflag & PARODD)?
|
|
USA_PARITY_ODD: USA_PARITY_EVEN;
|
|
}
|
|
msg.setLcr = 0xff;
|
|
|
|
msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
|
|
msg.xonFlowControl = 0;
|
|
msg.setFlowControl = 0xff;
|
|
msg.forwardingLength = 16;
|
|
msg.xonChar = 17;
|
|
msg.xoffChar = 19;
|
|
|
|
/* Opening port */
|
|
if (reset_port == 1) {
|
|
msg._txOn = 1;
|
|
msg._txOff = 0;
|
|
msg.txFlush = 0;
|
|
msg.txBreak = 0;
|
|
msg.rxOn = 1;
|
|
msg.rxOff = 0;
|
|
msg.rxFlush = 1;
|
|
msg.rxForward = 0;
|
|
msg.returnStatus = 0;
|
|
msg.resetDataToggle = 0xff;
|
|
}
|
|
|
|
/* Closing port */
|
|
else if (reset_port == 2) {
|
|
msg._txOn = 0;
|
|
msg._txOff = 1;
|
|
msg.txFlush = 0;
|
|
msg.txBreak = 0;
|
|
msg.rxOn = 0;
|
|
msg.rxOff = 1;
|
|
msg.rxFlush = 1;
|
|
msg.rxForward = 0;
|
|
msg.returnStatus = 0;
|
|
msg.resetDataToggle = 0;
|
|
}
|
|
|
|
/* Sending intermediate configs */
|
|
else {
|
|
msg._txOn = (! p_priv->break_on);
|
|
msg._txOff = 0;
|
|
msg.txFlush = 0;
|
|
msg.txBreak = (p_priv->break_on);
|
|
msg.rxOn = 0;
|
|
msg.rxOff = 0;
|
|
msg.rxFlush = 0;
|
|
msg.rxForward = 0;
|
|
msg.returnStatus = 0;
|
|
msg.resetDataToggle = 0x0;
|
|
}
|
|
|
|
/* Do handshaking outputs */
|
|
msg.setTxTriState_setRts = 0xff;
|
|
msg.txTriState_rts = p_priv->rts_state;
|
|
|
|
msg.setHskoa_setDtr = 0xff;
|
|
msg.hskoa_dtr = p_priv->dtr_state;
|
|
|
|
p_priv->resend_cont = 0;
|
|
memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
|
|
|
|
/* send the data out the device on control endpoint */
|
|
this_urb->transfer_buffer_length = sizeof(msg);
|
|
|
|
this_urb->dev = serial->dev;
|
|
if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err);
|
|
}
|
|
#if 0
|
|
else {
|
|
dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __FUNCTION__
|
|
outcont_urb, this_urb->transfer_buffer_length,
|
|
usb_pipeendpoint(this_urb->pipe));
|
|
}
|
|
#endif
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int keyspan_usa28_send_setup(struct usb_serial *serial,
|
|
struct usb_serial_port *port,
|
|
int reset_port)
|
|
{
|
|
struct keyspan_usa28_portControlMessage msg;
|
|
struct keyspan_serial_private *s_priv;
|
|
struct keyspan_port_private *p_priv;
|
|
const struct keyspan_device_details *d_details;
|
|
struct urb *this_urb;
|
|
int device_port, err;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
s_priv = usb_get_serial_data(serial);
|
|
p_priv = usb_get_serial_port_data(port);
|
|
d_details = s_priv->device_details;
|
|
device_port = port->number - port->serial->minor;
|
|
|
|
/* only do something if we have a bulk out endpoint */
|
|
if ((this_urb = p_priv->outcont_urb) == NULL) {
|
|
dbg("%s - oops no urb.", __FUNCTION__);
|
|
return -1;
|
|
}
|
|
|
|
/* Save reset port val for resend.
|
|
Don't overwrite resend for close condition. */
|
|
if (p_priv->resend_cont != 3)
|
|
p_priv->resend_cont = reset_port + 1;
|
|
if (this_urb->status == -EINPROGRESS) {
|
|
dbg ("%s already writing", __FUNCTION__);
|
|
mdelay(5);
|
|
return(-1);
|
|
}
|
|
|
|
memset(&msg, 0, sizeof (struct keyspan_usa28_portControlMessage));
|
|
|
|
msg.setBaudRate = 1;
|
|
if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk,
|
|
&msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
|
|
dbg("%s - Invalid baud rate requested %d.", __FUNCTION__, p_priv->baud);
|
|
msg.baudLo = 0xff;
|
|
msg.baudHi = 0xb2; /* Values for 9600 baud */
|
|
}
|
|
|
|
/* If parity is enabled, we must calculate it ourselves. */
|
|
msg.parity = 0; /* XXX for now */
|
|
|
|
msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
|
|
msg.xonFlowControl = 0;
|
|
|
|
/* Do handshaking outputs, DTR is inverted relative to RTS */
|
|
msg.rts = p_priv->rts_state;
|
|
msg.dtr = p_priv->dtr_state;
|
|
|
|
msg.forwardingLength = 16;
|
|
msg.forwardMs = 10;
|
|
msg.breakThreshold = 45;
|
|
msg.xonChar = 17;
|
|
msg.xoffChar = 19;
|
|
|
|
/*msg.returnStatus = 1;
|
|
msg.resetDataToggle = 0xff;*/
|
|
/* Opening port */
|
|
if (reset_port == 1) {
|
|
msg._txOn = 1;
|
|
msg._txOff = 0;
|
|
msg.txFlush = 0;
|
|
msg.txForceXoff = 0;
|
|
msg.txBreak = 0;
|
|
msg.rxOn = 1;
|
|
msg.rxOff = 0;
|
|
msg.rxFlush = 1;
|
|
msg.rxForward = 0;
|
|
msg.returnStatus = 0;
|
|
msg.resetDataToggle = 0xff;
|
|
}
|
|
/* Closing port */
|
|
else if (reset_port == 2) {
|
|
msg._txOn = 0;
|
|
msg._txOff = 1;
|
|
msg.txFlush = 0;
|
|
msg.txForceXoff = 0;
|
|
msg.txBreak = 0;
|
|
msg.rxOn = 0;
|
|
msg.rxOff = 1;
|
|
msg.rxFlush = 1;
|
|
msg.rxForward = 0;
|
|
msg.returnStatus = 0;
|
|
msg.resetDataToggle = 0;
|
|
}
|
|
/* Sending intermediate configs */
|
|
else {
|
|
msg._txOn = (! p_priv->break_on);
|
|
msg._txOff = 0;
|
|
msg.txFlush = 0;
|
|
msg.txForceXoff = 0;
|
|
msg.txBreak = (p_priv->break_on);
|
|
msg.rxOn = 0;
|
|
msg.rxOff = 0;
|
|
msg.rxFlush = 0;
|
|
msg.rxForward = 0;
|
|
msg.returnStatus = 0;
|
|
msg.resetDataToggle = 0x0;
|
|
}
|
|
|
|
p_priv->resend_cont = 0;
|
|
memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
|
|
|
|
/* send the data out the device on control endpoint */
|
|
this_urb->transfer_buffer_length = sizeof(msg);
|
|
|
|
this_urb->dev = serial->dev;
|
|
if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - usb_submit_urb(setup) failed", __FUNCTION__);
|
|
}
|
|
#if 0
|
|
else {
|
|
dbg("%s - usb_submit_urb(setup) OK %d bytes", __FUNCTION__,
|
|
this_urb->transfer_buffer_length);
|
|
}
|
|
#endif
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int keyspan_usa49_send_setup(struct usb_serial *serial,
|
|
struct usb_serial_port *port,
|
|
int reset_port)
|
|
{
|
|
struct keyspan_usa49_portControlMessage msg;
|
|
struct keyspan_serial_private *s_priv;
|
|
struct keyspan_port_private *p_priv;
|
|
const struct keyspan_device_details *d_details;
|
|
int glocont_urb;
|
|
struct urb *this_urb;
|
|
int err, device_port;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
s_priv = usb_get_serial_data(serial);
|
|
p_priv = usb_get_serial_port_data(port);
|
|
d_details = s_priv->device_details;
|
|
|
|
glocont_urb = d_details->glocont_endpoint;
|
|
this_urb = s_priv->glocont_urb;
|
|
|
|
/* Work out which port within the device is being setup */
|
|
device_port = port->number - port->serial->minor;
|
|
|
|
dbg("%s - endpoint %d port %d (%d)",__FUNCTION__, usb_pipeendpoint(this_urb->pipe), port->number, device_port);
|
|
|
|
/* Make sure we have an urb then send the message */
|
|
if (this_urb == NULL) {
|
|
dbg("%s - oops no urb for port %d.", __FUNCTION__, port->number);
|
|
return -1;
|
|
}
|
|
|
|
/* Save reset port val for resend.
|
|
Don't overwrite resend for close condition. */
|
|
if (p_priv->resend_cont != 3)
|
|
p_priv->resend_cont = reset_port + 1;
|
|
if (this_urb->status == -EINPROGRESS) {
|
|
/* dbg ("%s - already writing", __FUNCTION__); */
|
|
mdelay(5);
|
|
return(-1);
|
|
}
|
|
|
|
memset(&msg, 0, sizeof (struct keyspan_usa49_portControlMessage));
|
|
|
|
/*msg.portNumber = port->number;*/
|
|
msg.portNumber = device_port;
|
|
|
|
/* Only set baud rate if it's changed */
|
|
if (p_priv->old_baud != p_priv->baud) {
|
|
p_priv->old_baud = p_priv->baud;
|
|
msg.setClocking = 0xff;
|
|
if (d_details->calculate_baud_rate
|
|
(p_priv->baud, d_details->baudclk, &msg.baudHi,
|
|
&msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE ) {
|
|
dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__,
|
|
p_priv->baud);
|
|
msg.baudLo = 0;
|
|
msg.baudHi = 125; /* Values for 9600 baud */
|
|
msg.prescaler = 10;
|
|
}
|
|
//msg.setPrescaler = 0xff;
|
|
}
|
|
|
|
msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
|
|
switch (p_priv->cflag & CSIZE) {
|
|
case CS5:
|
|
msg.lcr |= USA_DATABITS_5;
|
|
break;
|
|
case CS6:
|
|
msg.lcr |= USA_DATABITS_6;
|
|
break;
|
|
case CS7:
|
|
msg.lcr |= USA_DATABITS_7;
|
|
break;
|
|
case CS8:
|
|
msg.lcr |= USA_DATABITS_8;
|
|
break;
|
|
}
|
|
if (p_priv->cflag & PARENB) {
|
|
/* note USA_PARITY_NONE == 0 */
|
|
msg.lcr |= (p_priv->cflag & PARODD)?
|
|
USA_PARITY_ODD: USA_PARITY_EVEN;
|
|
}
|
|
msg.setLcr = 0xff;
|
|
|
|
msg.ctsFlowControl = (p_priv->flow_control == flow_cts);
|
|
msg.xonFlowControl = 0;
|
|
msg.setFlowControl = 0xff;
|
|
|
|
msg.forwardingLength = 16;
|
|
msg.xonChar = 17;
|
|
msg.xoffChar = 19;
|
|
|
|
/* Opening port */
|
|
if (reset_port == 1) {
|
|
msg._txOn = 1;
|
|
msg._txOff = 0;
|
|
msg.txFlush = 0;
|
|
msg.txBreak = 0;
|
|
msg.rxOn = 1;
|
|
msg.rxOff = 0;
|
|
msg.rxFlush = 1;
|
|
msg.rxForward = 0;
|
|
msg.returnStatus = 0;
|
|
msg.resetDataToggle = 0xff;
|
|
msg.enablePort = 1;
|
|
msg.disablePort = 0;
|
|
}
|
|
/* Closing port */
|
|
else if (reset_port == 2) {
|
|
msg._txOn = 0;
|
|
msg._txOff = 1;
|
|
msg.txFlush = 0;
|
|
msg.txBreak = 0;
|
|
msg.rxOn = 0;
|
|
msg.rxOff = 1;
|
|
msg.rxFlush = 1;
|
|
msg.rxForward = 0;
|
|
msg.returnStatus = 0;
|
|
msg.resetDataToggle = 0;
|
|
msg.enablePort = 0;
|
|
msg.disablePort = 1;
|
|
}
|
|
/* Sending intermediate configs */
|
|
else {
|
|
msg._txOn = (! p_priv->break_on);
|
|
msg._txOff = 0;
|
|
msg.txFlush = 0;
|
|
msg.txBreak = (p_priv->break_on);
|
|
msg.rxOn = 0;
|
|
msg.rxOff = 0;
|
|
msg.rxFlush = 0;
|
|
msg.rxForward = 0;
|
|
msg.returnStatus = 0;
|
|
msg.resetDataToggle = 0x0;
|
|
msg.enablePort = 0;
|
|
msg.disablePort = 0;
|
|
}
|
|
|
|
/* Do handshaking outputs */
|
|
msg.setRts = 0xff;
|
|
msg.rts = p_priv->rts_state;
|
|
|
|
msg.setDtr = 0xff;
|
|
msg.dtr = p_priv->dtr_state;
|
|
|
|
p_priv->resend_cont = 0;
|
|
memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
|
|
|
|
/* send the data out the device on control endpoint */
|
|
this_urb->transfer_buffer_length = sizeof(msg);
|
|
|
|
this_urb->dev = serial->dev;
|
|
if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err);
|
|
}
|
|
#if 0
|
|
else {
|
|
dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __FUNCTION__,
|
|
outcont_urb, this_urb->transfer_buffer_length,
|
|
usb_pipeendpoint(this_urb->pipe));
|
|
}
|
|
#endif
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int keyspan_usa90_send_setup(struct usb_serial *serial,
|
|
struct usb_serial_port *port,
|
|
int reset_port)
|
|
{
|
|
struct keyspan_usa90_portControlMessage msg;
|
|
struct keyspan_serial_private *s_priv;
|
|
struct keyspan_port_private *p_priv;
|
|
const struct keyspan_device_details *d_details;
|
|
struct urb *this_urb;
|
|
int err;
|
|
u8 prescaler;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
s_priv = usb_get_serial_data(serial);
|
|
p_priv = usb_get_serial_port_data(port);
|
|
d_details = s_priv->device_details;
|
|
|
|
/* only do something if we have a bulk out endpoint */
|
|
if ((this_urb = p_priv->outcont_urb) == NULL) {
|
|
dbg("%s - oops no urb.", __FUNCTION__);
|
|
return -1;
|
|
}
|
|
|
|
/* Save reset port val for resend.
|
|
Don't overwrite resend for open/close condition. */
|
|
if ((reset_port + 1) > p_priv->resend_cont)
|
|
p_priv->resend_cont = reset_port + 1;
|
|
if (this_urb->status == -EINPROGRESS) {
|
|
dbg ("%s already writing", __FUNCTION__);
|
|
mdelay(5);
|
|
return(-1);
|
|
}
|
|
|
|
memset(&msg, 0, sizeof (struct keyspan_usa90_portControlMessage));
|
|
|
|
/* Only set baud rate if it's changed */
|
|
if (p_priv->old_baud != p_priv->baud) {
|
|
p_priv->old_baud = p_priv->baud;
|
|
msg.setClocking = 0x01;
|
|
if (d_details->calculate_baud_rate
|
|
(p_priv->baud, d_details->baudclk, &msg.baudHi,
|
|
&msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE ) {
|
|
dbg("%s - Invalid baud rate %d requested, using 9600.", __FUNCTION__,
|
|
p_priv->baud);
|
|
p_priv->baud = 9600;
|
|
d_details->calculate_baud_rate (p_priv->baud, d_details->baudclk,
|
|
&msg.baudHi, &msg.baudLo, &prescaler, 0);
|
|
}
|
|
msg.setRxMode = 1;
|
|
msg.setTxMode = 1;
|
|
}
|
|
|
|
/* modes must always be correctly specified */
|
|
if (p_priv->baud > 57600)
|
|
{
|
|
msg.rxMode = RXMODE_DMA;
|
|
msg.txMode = TXMODE_DMA;
|
|
}
|
|
else
|
|
{
|
|
msg.rxMode = RXMODE_BYHAND;
|
|
msg.txMode = TXMODE_BYHAND;
|
|
}
|
|
|
|
msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1;
|
|
switch (p_priv->cflag & CSIZE) {
|
|
case CS5:
|
|
msg.lcr |= USA_DATABITS_5;
|
|
break;
|
|
case CS6:
|
|
msg.lcr |= USA_DATABITS_6;
|
|
break;
|
|
case CS7:
|
|
msg.lcr |= USA_DATABITS_7;
|
|
break;
|
|
case CS8:
|
|
msg.lcr |= USA_DATABITS_8;
|
|
break;
|
|
}
|
|
if (p_priv->cflag & PARENB) {
|
|
/* note USA_PARITY_NONE == 0 */
|
|
msg.lcr |= (p_priv->cflag & PARODD)?
|
|
USA_PARITY_ODD: USA_PARITY_EVEN;
|
|
}
|
|
if (p_priv->old_cflag != p_priv->cflag) {
|
|
p_priv->old_cflag = p_priv->cflag;
|
|
msg.setLcr = 0x01;
|
|
}
|
|
|
|
if (p_priv->flow_control == flow_cts)
|
|
msg.txFlowControl = TXFLOW_CTS;
|
|
msg.setTxFlowControl = 0x01;
|
|
msg.setRxFlowControl = 0x01;
|
|
|
|
msg.rxForwardingLength = 16;
|
|
msg.rxForwardingTimeout = 16;
|
|
msg.txAckSetting = 0;
|
|
msg.xonChar = 17;
|
|
msg.xoffChar = 19;
|
|
|
|
/* Opening port */
|
|
if (reset_port == 1) {
|
|
msg.portEnabled = 1;
|
|
msg.rxFlush = 1;
|
|
msg.txBreak = (p_priv->break_on);
|
|
}
|
|
/* Closing port */
|
|
else if (reset_port == 2) {
|
|
msg.portEnabled = 0;
|
|
}
|
|
/* Sending intermediate configs */
|
|
else {
|
|
if (port->open_count)
|
|
msg.portEnabled = 1;
|
|
msg.txBreak = (p_priv->break_on);
|
|
}
|
|
|
|
/* Do handshaking outputs */
|
|
msg.setRts = 0x01;
|
|
msg.rts = p_priv->rts_state;
|
|
|
|
msg.setDtr = 0x01;
|
|
msg.dtr = p_priv->dtr_state;
|
|
|
|
p_priv->resend_cont = 0;
|
|
memcpy (this_urb->transfer_buffer, &msg, sizeof(msg));
|
|
|
|
/* send the data out the device on control endpoint */
|
|
this_urb->transfer_buffer_length = sizeof(msg);
|
|
|
|
this_urb->dev = serial->dev;
|
|
if ((err = usb_submit_urb(this_urb, GFP_ATOMIC)) != 0) {
|
|
dbg("%s - usb_submit_urb(setup) failed (%d)", __FUNCTION__, err);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void keyspan_send_setup(struct usb_serial_port *port, int reset_port)
|
|
{
|
|
struct usb_serial *serial = port->serial;
|
|
struct keyspan_serial_private *s_priv;
|
|
const struct keyspan_device_details *d_details;
|
|
|
|
dbg ("%s", __FUNCTION__);
|
|
|
|
s_priv = usb_get_serial_data(serial);
|
|
d_details = s_priv->device_details;
|
|
|
|
switch (d_details->msg_format) {
|
|
case msg_usa26:
|
|
keyspan_usa26_send_setup(serial, port, reset_port);
|
|
break;
|
|
case msg_usa28:
|
|
keyspan_usa28_send_setup(serial, port, reset_port);
|
|
break;
|
|
case msg_usa49:
|
|
keyspan_usa49_send_setup(serial, port, reset_port);
|
|
break;
|
|
case msg_usa90:
|
|
keyspan_usa90_send_setup(serial, port, reset_port);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/* Gets called by the "real" driver (ie once firmware is loaded
|
|
and renumeration has taken place. */
|
|
static int keyspan_startup (struct usb_serial *serial)
|
|
{
|
|
int i, err;
|
|
struct usb_serial_port *port;
|
|
struct keyspan_serial_private *s_priv;
|
|
struct keyspan_port_private *p_priv;
|
|
const struct keyspan_device_details *d_details;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i)
|
|
if (d_details->product_id == le16_to_cpu(serial->dev->descriptor.idProduct))
|
|
break;
|
|
if (d_details == NULL) {
|
|
dev_err(&serial->dev->dev, "%s - unknown product id %x\n", __FUNCTION__, le16_to_cpu(serial->dev->descriptor.idProduct));
|
|
return 1;
|
|
}
|
|
|
|
/* Setup private data for serial driver */
|
|
s_priv = kmalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL);
|
|
if (!s_priv) {
|
|
dbg("%s - kmalloc for keyspan_serial_private failed.", __FUNCTION__);
|
|
return -ENOMEM;
|
|
}
|
|
memset(s_priv, 0, sizeof(struct keyspan_serial_private));
|
|
|
|
s_priv->device_details = d_details;
|
|
usb_set_serial_data(serial, s_priv);
|
|
|
|
/* Now setup per port private data */
|
|
for (i = 0; i < serial->num_ports; i++) {
|
|
port = serial->port[i];
|
|
p_priv = kmalloc(sizeof(struct keyspan_port_private), GFP_KERNEL);
|
|
if (!p_priv) {
|
|
dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __FUNCTION__, i);
|
|
return (1);
|
|
}
|
|
memset(p_priv, 0, sizeof(struct keyspan_port_private));
|
|
p_priv->device_details = d_details;
|
|
usb_set_serial_port_data(port, p_priv);
|
|
}
|
|
|
|
keyspan_setup_urbs(serial);
|
|
|
|
s_priv->instat_urb->dev = serial->dev;
|
|
if ((err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL)) != 0) {
|
|
dbg("%s - submit instat urb failed %d", __FUNCTION__, err);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void keyspan_shutdown (struct usb_serial *serial)
|
|
{
|
|
int i, j;
|
|
struct usb_serial_port *port;
|
|
struct keyspan_serial_private *s_priv;
|
|
struct keyspan_port_private *p_priv;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
s_priv = usb_get_serial_data(serial);
|
|
|
|
/* Stop reading/writing urbs */
|
|
stop_urb(s_priv->instat_urb);
|
|
stop_urb(s_priv->glocont_urb);
|
|
for (i = 0; i < serial->num_ports; ++i) {
|
|
port = serial->port[i];
|
|
p_priv = usb_get_serial_port_data(port);
|
|
stop_urb(p_priv->inack_urb);
|
|
stop_urb(p_priv->outcont_urb);
|
|
for (j = 0; j < 2; j++) {
|
|
stop_urb(p_priv->in_urbs[j]);
|
|
stop_urb(p_priv->out_urbs[j]);
|
|
}
|
|
}
|
|
|
|
/* Now free them */
|
|
if (s_priv->instat_urb)
|
|
usb_free_urb(s_priv->instat_urb);
|
|
if (s_priv->glocont_urb)
|
|
usb_free_urb(s_priv->glocont_urb);
|
|
for (i = 0; i < serial->num_ports; ++i) {
|
|
port = serial->port[i];
|
|
p_priv = usb_get_serial_port_data(port);
|
|
if (p_priv->inack_urb)
|
|
usb_free_urb(p_priv->inack_urb);
|
|
if (p_priv->outcont_urb)
|
|
usb_free_urb(p_priv->outcont_urb);
|
|
for (j = 0; j < 2; j++) {
|
|
if (p_priv->in_urbs[j])
|
|
usb_free_urb(p_priv->in_urbs[j]);
|
|
if (p_priv->out_urbs[j])
|
|
usb_free_urb(p_priv->out_urbs[j]);
|
|
}
|
|
}
|
|
|
|
/* dbg("Freeing serial->private."); */
|
|
kfree(s_priv);
|
|
|
|
/* dbg("Freeing port->private."); */
|
|
/* Now free per port private data */
|
|
for (i = 0; i < serial->num_ports; i++) {
|
|
port = serial->port[i];
|
|
kfree(usb_get_serial_port_data(port));
|
|
}
|
|
}
|
|
|
|
MODULE_AUTHOR( DRIVER_AUTHOR );
|
|
MODULE_DESCRIPTION( DRIVER_DESC );
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_param(debug, bool, S_IRUGO | S_IWUSR);
|
|
MODULE_PARM_DESC(debug, "Debug enabled or not");
|
|
|