diff options
Diffstat (limited to 'drivers/usb/serial/keyspan.c')
-rw-r--r-- | drivers/usb/serial/keyspan.c | 456 |
1 files changed, 415 insertions, 41 deletions
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index e6966f12ed5..f2a6fce5de1 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -115,12 +115,13 @@ static int debug; /* * Version Information */ -#define DRIVER_VERSION "v1.1.4" +#define DRIVER_VERSION "v1.1.5" #define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu" #define DRIVER_DESC "Keyspan USB to Serial Converter Driver" #define INSTAT_BUFLEN 32 #define GLOCONT_BUFLEN 64 +#define INDAT49W_BUFLEN 512 /* Per device and per port private data */ struct keyspan_serial_private { @@ -129,9 +130,15 @@ struct keyspan_serial_private { struct urb *instat_urb; char instat_buf[INSTAT_BUFLEN]; + /* added to support 49wg, where data from all 4 ports comes in on 1 EP */ + /* and high-speed supported */ + struct urb *indat_urb; + char indat_buf[INDAT49W_BUFLEN]; + /* XXX this one probably will need a lock */ struct urb *glocont_urb; char glocont_buf[GLOCONT_BUFLEN]; + char ctrl_buf[8]; // for EP0 control message }; struct keyspan_port_private { @@ -179,12 +186,13 @@ struct keyspan_port_private { /* Include Keyspan message headers. All current Keyspan Adapters - make use of one of four message formats which are referred - to as USA-26, USA-28 and USA-49, USA-90 by Keyspan and within this driver. */ + make use of one of five message formats which are referred + to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and within this driver. */ #include "keyspan_usa26msg.h" #include "keyspan_usa28msg.h" #include "keyspan_usa49msg.h" #include "keyspan_usa90msg.h" +#include "keyspan_usa67msg.h" /* Functions used by new usb-serial code. */ @@ -419,14 +427,15 @@ static void usa26_indat_callback(struct urb *urb) struct usb_serial_port *port; struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; + int status = urb->status; dbg ("%s", __FUNCTION__); endpoint = usb_pipeendpoint(urb->pipe); - if (urb->status) { + if (status) { dbg("%s - nonzero status: %x on endpoint %d.", - __FUNCTION__, urb->status, endpoint); + __FUNCTION__, status, endpoint); return; } @@ -511,11 +520,12 @@ static void usa26_instat_callback(struct urb *urb) struct usb_serial_port *port; struct keyspan_port_private *p_priv; int old_dcd_state, err; + int status = urb->status; serial = (struct usb_serial *) urb->context; - if (urb->status) { - dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); return; } if (urb->actual_length != 9) { @@ -579,6 +589,7 @@ static void usa28_indat_callback(struct urb *urb) struct tty_struct *tty; unsigned char *data; struct keyspan_port_private *p_priv; + int status = urb->status; dbg ("%s", __FUNCTION__); @@ -590,9 +601,9 @@ static void usa28_indat_callback(struct urb *urb) return; do { - if (urb->status) { + if (status) { dbg("%s - nonzero status: %x on endpoint %d.", - __FUNCTION__, urb->status, usb_pipeendpoint(urb->pipe)); + __FUNCTION__, status, usb_pipeendpoint(urb->pipe)); return; } @@ -648,11 +659,12 @@ static void usa28_instat_callback(struct urb *urb) struct usb_serial_port *port; struct keyspan_port_private *p_priv; int old_dcd_state; + int status = urb->status; serial = (struct usb_serial *) urb->context; - if (urb->status) { - dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); return; } @@ -739,13 +751,14 @@ static void usa49_instat_callback(struct urb *urb) struct usb_serial_port *port; struct keyspan_port_private *p_priv; int old_dcd_state; + int status = urb->status; dbg ("%s", __FUNCTION__); serial = (struct usb_serial *) urb->context; - if (urb->status) { - dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); return; } @@ -805,14 +818,15 @@ static void usa49_indat_callback(struct urb *urb) struct usb_serial_port *port; struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; + int status = urb->status; dbg ("%s", __FUNCTION__); endpoint = usb_pipeendpoint(urb->pipe); - if (urb->status) { + if (status) { dbg("%s - nonzero status: %x on endpoint %d.", __FUNCTION__, - urb->status, endpoint); + status, endpoint); return; } @@ -850,13 +864,90 @@ static void usa49_indat_callback(struct urb *urb) } } +static void usa49wg_indat_callback(struct urb *urb) +{ + int i, len, x, err; + struct usb_serial *serial; + struct usb_serial_port *port; + struct tty_struct *tty; + unsigned char *data = urb->transfer_buffer; + int status = urb->status; + + dbg ("%s", __FUNCTION__); + + serial = urb->context; + + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); + return; + } + + /* inbound data is in the form P#, len, status, data */ + i = 0; + len = 0; + + if (urb->actual_length) { + while (i < urb->actual_length) { + + /* Check port number from message*/ + if (data[i] >= serial->num_ports) { + dbg ("%s - Unexpected port number %d", + __FUNCTION__, data[i]); + return; + } + port = serial->port[data[i++]]; + tty = port->tty; + len = data[i++]; + + /* 0x80 bit is error flag */ + if ((data[i] & 0x80) == 0) { + /* no error on any byte */ + i++; + for (x = 1; x < len ; ++x) + if (port->open_count) + tty_insert_flip_char(tty, + data[i++], 0); + else + i++; + } else { + /* + * some bytes had errors, every byte has status + */ + for (x = 0; x + 1 < len; x += 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) */ + if (port->open_count) + tty_insert_flip_char(tty, + data[i+1], flag); + i += 2; + } + } + if (port->open_count) + tty_flip_buffer_push(tty); + } + } + + /* Resubmit urb so we continue receiving */ + urb->dev = serial->dev; + + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err != 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) +static void usa49_outcont_callback(struct urb *urb) { dbg ("%s", __FUNCTION__); } -static void usa90_indat_callback(struct urb *urb) +static void usa90_indat_callback(struct urb *urb) { int i, err; int endpoint; @@ -864,15 +955,15 @@ static void usa90_indat_callback(struct urb *urb) struct keyspan_port_private *p_priv; struct tty_struct *tty; unsigned char *data = urb->transfer_buffer; + int status = urb->status; dbg ("%s", __FUNCTION__); endpoint = usb_pipeendpoint(urb->pipe); - - if (urb->status) { + if (status) { dbg("%s - nonzero status: %x on endpoint %d.", - __FUNCTION__, urb->status, endpoint); + __FUNCTION__, status, endpoint); return; } @@ -938,11 +1029,12 @@ static void usa90_instat_callback(struct urb *urb) struct usb_serial_port *port; struct keyspan_port_private *p_priv; int old_dcd_state, err; + int status = urb->status; serial = (struct usb_serial *) urb->context; - if (urb->status) { - dbg("%s - nonzero status: %x", __FUNCTION__, urb->status); + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); return; } if (urb->actual_length < 14) { @@ -995,6 +1087,88 @@ static void usa90_outcont_callback(struct urb *urb) } } +/* Status messages from the 28xg */ +static void usa67_instat_callback(struct urb *urb) +{ + int err; + unsigned char *data = urb->transfer_buffer; + struct keyspan_usa67_portStatusMessage *msg; + struct usb_serial *serial; + struct usb_serial_port *port; + struct keyspan_port_private *p_priv; + int old_dcd_state; + int status = urb->status; + + dbg ("%s", __FUNCTION__); + + serial = urb->context; + + if (status) { + dbg("%s - nonzero status: %x", __FUNCTION__, status); + return; + } + + if (urb->actual_length != sizeof(struct keyspan_usa67_portStatusMessage)) { + dbg("%s - bad length %d", __FUNCTION__, urb->actual_length); + return; + } + + + /* Now do something useful with the data */ + msg = (struct keyspan_usa67_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); + return; + } + + 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->dcd_state = ((msg->gpia_dcd) ? 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; + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err != 0) + dbg("%s - resubmit read urb failed. (%d)", __FUNCTION__, err); +} + +static void usa67_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 = 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_usa67_send_setup(serial, port, + p_priv->resend_cont - 1); + break; + } + } +} + static int keyspan_write_room (struct usb_serial_port *port) { struct keyspan_port_private *p_priv; @@ -1311,6 +1485,11 @@ static struct urb *keyspan_setup_urb (struct usb_serial *serial, int endpoint, return NULL; } + if (endpoint == 0) { + /* control EP filled in when used */ + return urb; + } + ep_desc = find_ep(serial, endpoint); if (!ep_desc) { /* leak the urb, something's wrong and the callers don't care */ @@ -1380,6 +1559,14 @@ static struct callbacks { .outdat_callback = usa2x_outdat_callback, .inack_callback = usa28_inack_callback, .outcont_callback = usa90_outcont_callback, + }, { + /* msg_usa67 callbacks */ + .instat_callback = usa67_instat_callback, + .glocont_callback = usa67_glocont_callback, + .indat_callback = usa26_indat_callback, + .outdat_callback = usa2x_outdat_callback, + .inack_callback = usa26_inack_callback, + .outcont_callback = usa26_outcont_callback, } }; @@ -1410,6 +1597,11 @@ static void keyspan_setup_urbs(struct usb_serial *serial) serial, s_priv->instat_buf, INSTAT_BUFLEN, cback->instat_callback); + s_priv->indat_urb = keyspan_setup_urb + (serial, d_details->indat_endpoint, USB_DIR_IN, + serial, s_priv->indat_buf, INDAT49W_BUFLEN, + usa49wg_indat_callback); + s_priv->glocont_urb = keyspan_setup_urb (serial, d_details->glocont_endpoint, USB_DIR_OUT, serial, s_priv->glocont_buf, GLOCONT_BUFLEN, @@ -1685,8 +1877,8 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial, } /* Save reset port val for resend. - Don't overwrite resend for close condition. */ - if (p_priv->resend_cont != 3) + 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__); */ @@ -1836,8 +2028,8 @@ static int keyspan_usa28_send_setup(struct usb_serial *serial, } /* Save reset port val for resend. - Don't overwrite resend for close condition. */ - if (p_priv->resend_cont != 3) + 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__); @@ -1940,11 +2132,11 @@ 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_usa49_portControlMessage msg; + struct usb_ctrlrequest *dr = NULL; 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; @@ -1954,10 +2146,9 @@ static int keyspan_usa49_send_setup(struct usb_serial *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 */ + /* 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); @@ -1969,9 +2160,10 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial, } /* Save reset port val for resend. - Don't overwrite resend for close condition. */ - if (p_priv->resend_cont != 3) + 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); @@ -2083,20 +2275,39 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial, msg.dtr = p_priv->dtr_state; p_priv->resend_cont = 0; - memcpy (this_urb->transfer_buffer, &msg, sizeof(msg)); + + /* if the device is a 49wg, we send control message on usb control EP 0 */ + + if (d_details->product_id == keyspan_usa49wg_product_id) { + dr = (void *)(s_priv->ctrl_buf); + dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT; + dr->bRequest = 0xB0; /* 49wg control message */; + dr->wValue = 0; + dr->wIndex = 0; + dr->wLength = cpu_to_le16(sizeof(msg)); + + memcpy (s_priv->glocont_buf, &msg, sizeof(msg)); + + usb_fill_control_urb(this_urb, serial->dev, usb_sndctrlpipe(serial->dev, 0), + (unsigned char *)dr, s_priv->glocont_buf, sizeof(msg), + usa49_glocont_callback, serial); + + } else { + memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); - /* send the data out the device on control endpoint */ - this_urb->transfer_buffer_length = sizeof(msg); + /* send the data out the device on control endpoint */ + this_urb->transfer_buffer_length = sizeof(msg); - this_urb->dev = serial->dev; + 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)); + outcont_urb, this_urb->transfer_buffer_length, + usb_pipeendpoint(this_urb->pipe)); } #endif @@ -2241,6 +2452,154 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial, return (0); } +static int keyspan_usa67_send_setup(struct usb_serial *serial, + struct usb_serial_port *port, + int reset_port) +{ + struct keyspan_usa67_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, 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; + + this_urb = s_priv->glocont_urb; + + /* Work out which port within the device is being setup */ + device_port = port->number - port->serial->minor; + + /* 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__); */ + mdelay(5); + return(-1); + } + + memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage)); + + msg.port = 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; + + if (reset_port == 1) { + /* Opening port */ + 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; + } else if (reset_port == 2) { + /* Closing port */ + 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; + } else { + /* Sending intermediate configs */ + 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; + + err = usb_submit_urb(this_urb, GFP_ATOMIC); + if (err != 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; @@ -2265,6 +2624,9 @@ static void keyspan_send_setup(struct usb_serial_port *port, int reset_port) case msg_usa90: keyspan_usa90_send_setup(serial, port, reset_port); break; + case msg_usa67: + keyspan_usa67_send_setup(serial, port, reset_port); + break; } } @@ -2313,9 +2675,19 @@ static int keyspan_startup (struct usb_serial *serial) 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); + if (s_priv->instat_urb != NULL) { + s_priv->instat_urb->dev = serial->dev; + err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL); + if (err != 0) + dbg("%s - submit instat urb failed %d", __FUNCTION__, + err); + } + if (s_priv->indat_urb != NULL) { + s_priv->indat_urb->dev = serial->dev; + err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL); + if (err != 0) + dbg("%s - submit indat urb failed %d", __FUNCTION__, + err); } return (0); @@ -2335,6 +2707,7 @@ static void keyspan_shutdown (struct usb_serial *serial) /* Stop reading/writing urbs */ stop_urb(s_priv->instat_urb); stop_urb(s_priv->glocont_urb); + stop_urb(s_priv->indat_urb); for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; p_priv = usb_get_serial_port_data(port); @@ -2348,6 +2721,7 @@ static void keyspan_shutdown (struct usb_serial *serial) /* Now free them */ usb_free_urb(s_priv->instat_urb); + usb_free_urb(s_priv->indat_urb); usb_free_urb(s_priv->glocont_urb); for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; |