/* Keyspan USB to Serial Converter driver (C) Copyright (C) 2000-2001 Hugh Blemings (C) Copyright (C) 2002 Greg Kroah-Hartman This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See http://misc.nu/hugh/keyspan.html for more information. Code in this driver inspired by and in a number of places taken from Brian Warner's original Keyspan-PDA driver. This driver has been put together with the support of Innosys, Inc. and Keyspan, Inc the manufacturers of the Keyspan USB-serial products. Thanks Guys :) Thanks to Paulus for miscellaneous tidy ups, some largish chunks of much nicer and/or completely new code and (perhaps most uniquely) having the patience to sit down and explain why and where he'd changed stuff. Tip 'o the hat to IBM (and previously Linuxcare :) for supporting staff in their work on open source projects. Change History 2003Apr16 LPM (Keyspan) fix delayed control message resend for multi-port 'Open' case. Fix 'mpr' entries in keyspan.h (previously broken) Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing ) Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4) Linux source tree. The Linux tree lacked support for the 49WLC and others. The Keyspan patches didn't work with the current kernel. 2003jan30 LPM add support for the 49WLC and MPR Wed Apr 25 12:00:00 PST 2002 (Keyspan) Started with Hugh Blemings' code dated Jan 17, 2002. All adapters now supported (including QI and QW). Modified port open, port close, and send setup() logic to fix various data and endpoint synchronization bugs and device LED status bugs. Changed keyspan_ write_room() to accurately return transmit buffer availability. Changed forwardingLength from 1 to 16 for all adapters. Fri Oct 12 16:45:00 EST 2001 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV) Wed Apr 25 12:00:00 PST 2002 (Keyspan) Started with Hugh Blemings' code dated Jan 17, 2002. All adapters now supported (including QI and QW). Modified port open, port close, and send setup() logic to fix various data and endpoint synchronization bugs and device LED status bugs. Changed keyspan_ write_room() to accurately return transmit buffer availability. Changed forwardingLength from 1 to 16 for all adapters. Fri Oct 12 16:45:00 EST 2001 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV) Mon Oct 8 14:29:00 EST 2001 hugh Fixed bug that prevented mulitport devices operating correctly if they weren't the first unit attached. Sat Oct 6 12:31:21 EST 2001 hugh Added support for USA-28XA and -28XB, misc cleanups, break support for usa26 based models thanks to David Gibson. Thu May 31 11:56:42 PDT 2001 gkh switched from using spinlock to a semaphore (04/08/2001) gb Identify version on module load. (11/01/2000) Adam J. Richter usb_device_id table support. Tue Oct 10 23:15:33 EST 2000 Hugh Merged Paul's changes with my USA-49W mods. Work in progress still... Wed Jul 19 14:00:42 EST 2000 gkh Added module_init and module_exit functions to handle the fact that this driver is a loadable module now. Tue Jul 18 16:14:52 EST 2000 Hugh Basic character input/output for USA-19 now mostly works, fixed at 9600 baud for the moment. Sat Jul 8 11:11:48 EST 2000 Hugh First public release - nothing works except the firmware upload. Tested on PPC and x86 architectures, seems to behave... */ #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_USB_SERIAL_DEBUG static int debug = 1; #define DEBUG #else static int debug; #undef DEBUG #endif #include #include "usb-serial.h" #include "keyspan.h" /* * Version Information */ #define DRIVER_VERSION "v1.1.4" #define DRIVER_AUTHOR "Hugh Blemings number); } static void keyspan_rx_unthrottle (struct usb_serial_port *port) { dbg("%s - port %d", __FUNCTION__, port->number); } static void keyspan_break_ctl (struct usb_serial_port *port, int break_state) { struct keyspan_port_private *p_priv; dbg("%s", __FUNCTION__); p_priv = (struct keyspan_port_private *)port->private; if (break_state == -1) p_priv->break_on = 1; else p_priv->break_on = 0; keyspan_send_setup(port, 0); } static void keyspan_set_termios (struct usb_serial_port *port, struct termios *old_termios) { int baud_rate, device_port; struct keyspan_port_private *p_priv; const struct keyspan_device_details *d_details; unsigned int cflag; dbg("%s", __FUNCTION__); p_priv = (struct keyspan_port_private *)(port->private); d_details = p_priv->device_details; 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, don't change */ if (baud_rate >= 0 && d_details->calculate_baud_rate(baud_rate, d_details->baudclk, NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { /* FIXME - more to do here to ensure rate changes cleanly */ 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, 0); } static int keyspan_ioctl(struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg) { unsigned int value, set; struct keyspan_port_private *p_priv; p_priv = (struct keyspan_port_private *)(port->private); switch (cmd) { case TIOCMGET: value = ((p_priv->rts_state) ? TIOCM_RTS : 0) | ((p_priv->dtr_state) ? TIOCM_DTR : 0) | ((p_priv->cts_state) ? TIOCM_CTS : 0) | ((p_priv->dsr_state) ? TIOCM_DSR : 0) | ((p_priv->dcd_state) ? TIOCM_CAR : 0) | ((p_priv->ri_state) ? TIOCM_RNG : 0); if (put_user(value, (unsigned int *) arg)) return -EFAULT; return 0; case TIOCMSET: if (get_user(value, (unsigned int *) arg)) return -EFAULT; p_priv->rts_state = ((value & TIOCM_RTS) ? 1 : 0); p_priv->dtr_state = ((value & TIOCM_DTR) ? 1 : 0); keyspan_send_setup(port, 0); return 0; case TIOCMBIS: case TIOCMBIC: if (get_user(value, (unsigned int *) arg)) return -EFAULT; set = (cmd == TIOCMBIS); if (value & TIOCM_RTS) p_priv->rts_state = set; if (value & TIOCM_DTR) p_priv->dtr_state = set; keyspan_send_setup(port, 0); return 0; } return -ENOIOCTLCMD; } /* Write function is generic for the three protocols used with only a minor change for usa49 required */ static int keyspan_write(struct usb_serial_port *port, int from_user, const unsigned char *buf, int count) { struct keyspan_port_private *p_priv; const struct keyspan_device_details *d_details; int flip; int left, todo; struct urb *this_urb; int err; p_priv = (struct keyspan_port_private *)(port->private); d_details = p_priv->device_details; dbg("%s - for port %d (%d chars [%x]), flip=%d", __FUNCTION__, port->number, count, buf[0], p_priv->out_flip); for (left = count; left > 0; left -= todo) { todo = left; if (todo > 63) todo = 63; flip = p_priv->out_flip; /* Check we have a valid urb/endpoint before we use it... */ if ((this_urb = p_priv->out_urbs[flip]) == 0) { /* no bulk out, so return 0 bytes written */ dbg("%s - no output urb :(", __FUNCTION__); return count; } dbg("%s - endpoint %d flip %d", __FUNCTION__, usb_pipeendpoint(this_urb->pipe), flip); if (this_urb->status == -EINPROGRESS) { if (this_urb->transfer_flags & USB_ASYNC_UNLINK) break; if (time_before(jiffies, p_priv->tx_start_time[flip] + 10 * HZ)) break; this_urb->transfer_flags |= USB_ASYNC_UNLINK; usb_unlink_urb(this_urb); break; } /* First byte in buffer is "last flag" - unused so for now so set to zero */ ((char *)this_urb->transfer_buffer)[0] = 0; if (from_user) { if (copy_from_user(this_urb->transfer_buffer + 1, buf, todo)) return -EFAULT; } else { memcpy (this_urb->transfer_buffer + 1, buf, todo); } buf += todo; /* send the data out the bulk port */ this_urb->transfer_buffer_length = todo + 1; this_urb->transfer_flags &= ~USB_ASYNC_UNLINK; this_urb->dev = port->serial->dev; if ((err = usb_submit_urb(this_urb)) != 0) { dbg("usb_submit_urb(write bulk) failed (%d)", err); } p_priv->tx_start_time[flip] = jiffies; /* Flip for next time if usa26 or usa28 interface (not used on usa49) */ p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip; } return count - left; } static void usa26_indat_callback(struct urb *urb) { 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 */ 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)) != 0) { dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); } return; } /* Outdat handling is common for usa26, usa28 and usa49 messages */ static void usa2x_outdat_callback(struct urb *urb) { struct usb_serial_port *port; struct keyspan_port_private *p_priv; port = (struct usb_serial_port *) urb->context; p_priv = (struct keyspan_port_private *)(port->private); dbg ("%s - urb %d", __FUNCTION__, urb == p_priv->out_urbs[1]); if (port->open_count) { queue_task(&port->tqueue, &tq_immediate); mark_bh(IMMEDIATE_BH); } } static void usa26_inack_callback(struct urb *urb) { dbg ("%s", __FUNCTION__); } static void usa26_outcont_callback(struct urb *urb) { struct usb_serial_port *port; struct keyspan_port_private *p_priv; port = (struct usb_serial_port *) urb->context; p_priv = (struct keyspan_port_private *)(port->private); if (p_priv->resend_cont) { dbg ("%s - sending setup", __FUNCTION__); keyspan_usa26_send_setup(port->serial, port, p_priv->resend_cont - 1); } } static void usa26_instat_callback(struct urb *urb) { 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 = (struct keyspan_port_private *)(port->private); /* 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)) != 0) { dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); } exit: ; } static void usa26_glocont_callback(struct urb *urb) { dbg ("%s", __FUNCTION__); } static void usa28_indat_callback(struct urb *urb) { 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 = (struct keyspan_port_private *)(port->private); 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 = (struct keyspan_port_private *)(port->private); 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)) != 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) { dbg ("%s", __FUNCTION__); } static void usa28_outcont_callback(struct urb *urb) { struct usb_serial_port *port; struct keyspan_port_private *p_priv; port = (struct usb_serial_port *) urb->context; p_priv = (struct keyspan_port_private *)(port->private); 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) { 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 = (struct keyspan_port_private *)(port->private); /* 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)) != 0) { dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); } exit: ; } static void usa28_glocont_callback(struct urb *urb) { dbg ("%s", __FUNCTION__); } static void usa49_glocont_callback(struct urb *urb) { 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 = (struct keyspan_port_private *)(port->private); 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) { 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 = (struct keyspan_port_private *)(port->private); /* 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)) != 0) { dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); } exit: ; } static void usa49_inack_callback(struct urb *urb) { dbg ("%s", __FUNCTION__); } static void usa49_indat_callback(struct urb *urb) { 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)) != 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) { dbg ("%s", __FUNCTION__); } 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; struct urb *this_urb; dbg("%s", __FUNCTION__); p_priv = (struct keyspan_port_private *)(port->private); d_details = p_priv->device_details; flip = p_priv->out_flip; /* Check both endpoints to see if any are available. */ if ((this_urb = p_priv->out_urbs[flip]) != 0) { if (this_urb->status != -EINPROGRESS) return (63); flip = (flip + 1) & d_details->outdat_endp_flip; if ((this_urb = p_priv->out_urbs[flip]) != 0) if (this_urb->status != -EINPROGRESS) return (63); } 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; struct urb *urb; s_priv = (struct keyspan_serial_private *)(serial->private); p_priv = (struct keyspan_port_private *)(port->private); d_details = s_priv->device_details; dbg("%s - port%d.", __FUNCTION__, port->number); p_priv = (struct keyspan_port_private *)(port->private); /* Set some sane defaults */ p_priv->rts_state = 1; p_priv->dtr_state = 1; 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; usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); if ((err = usb_submit_urb(urb)) != 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); */ } // if the device is a USA49x, determine whether it is an W or WLC model // and set the baud clock accordingly 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) { urb->transfer_flags &= ~USB_ASYNC_UNLINK; usb_unlink_urb(urb); } } static void keyspan_close(struct usb_serial_port *port, struct file *filp) { int i; struct usb_serial *serial; struct keyspan_serial_private *s_priv; struct keyspan_port_private *p_priv; serial = get_usb_serial (port, __FUNCTION__); if (!serial) return; dbg("%s", __FUNCTION__); s_priv = (struct keyspan_serial_private *)(serial->private); p_priv = (struct keyspan_port_private *)(port->private); 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 = 0; } /* 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", serial->dev->descriptor.bcdDevice, serial->dev->descriptor.idProduct); if ((serial->dev->descriptor.bcdDevice & 0x8000) != 0x8000) { dbg("Firmware already loaded. Quitting."); return(1); } /* Select firmware image on the basis of idProduct */ switch (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) { err("Required keyspan firmware image (%s) unavailable.", 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) { err("ezusb_writememory failed for Keyspan" "firmware (%d %04X %p %d)", 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 urb *urb; if (endpoint == -1) return NULL; /* endpoint not needed */ dbg ("%s - alloc for endpoint %d.", __FUNCTION__, endpoint); urb = usb_alloc_urb(0); /* No ISO */ if (urb == NULL) { dbg ("%s - alloc for endpoint %d failed.", __FUNCTION__, endpoint); return NULL; } /* Fill URB using supplied data. */ 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 *); void (*glocont_callback)(struct urb *); void (*indat_callback)(struct urb *); void (*outdat_callback)(struct urb *); void (*inack_callback)(struct urb *); void (*outcont_callback)(struct urb *); } 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, } }; /* 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 = (struct keyspan_serial_private *)(serial->private); 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 = (struct keyspan_port_private *)(port->private); /* 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); } 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 = (struct keyspan_serial_private *)(serial->private); p_priv = (struct keyspan_port_private *)(port->private); 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 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__); */ 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)) != 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 = (struct keyspan_serial_private *)(serial->private); p_priv = (struct keyspan_port_private *)(port->private); 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 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__); 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)) != 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 = (struct keyspan_serial_private *)(serial->private); p_priv = (struct keyspan_port_private *)(port->private); 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 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__); */ 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)) != 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 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 = (struct keyspan_serial_private *)(serial->private); 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; } } /* 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 == serial->dev->descriptor.idProduct) break; if (d_details == NULL) { err("%s - unknown product id %x", __FUNCTION__, serial->dev->descriptor.idProduct); return 1; } /* Setup private data for serial driver */ serial->private = kmalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL); if (!serial->private) { dbg("%s - kmalloc for keyspan_serial_private failed.", __FUNCTION__); return (1); } memset(serial->private, 0, sizeof(struct keyspan_serial_private)); s_priv = (struct keyspan_serial_private *)(serial->private); s_priv->device_details = d_details; /* Now setup per port private data */ for (i = 0; i < serial->num_ports; i++) { port = &serial->port[i]; port->private = kmalloc(sizeof(struct keyspan_port_private), GFP_KERNEL); if (!port->private) { dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __FUNCTION__, i); return (1); } memset(port->private, 0, sizeof(struct keyspan_port_private)); p_priv = (struct keyspan_port_private *)(port->private); p_priv->device_details = d_details; } keyspan_setup_urbs(serial); s_priv->instat_urb->dev = serial->dev; if ((err = usb_submit_urb(s_priv->instat_urb)) != 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 = (struct keyspan_serial_private *)(serial->private); /* 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 = (struct keyspan_port_private *)(port->private); 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 = (struct keyspan_port_private *)(port->private); 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(serial->private); /* dbg("Freeing port->private."); */ /* Now free per port private data */ for (i = 0; i < serial->num_ports; i++) { port = &serial->port[i]; kfree(port->private); } } MODULE_AUTHOR( DRIVER_AUTHOR ); MODULE_DESCRIPTION( DRIVER_DESC ); MODULE_LICENSE("GPL"); MODULE_PARM(debug, "i"); MODULE_PARM_DESC(debug, "Debug enabled or not");