795 строки
23 KiB
C
795 строки
23 KiB
C
/*
|
|
USB Driver for GSM modems
|
|
|
|
Copyright (C) 2005 Matthias Urlichs <smurf@smurf.noris.de>
|
|
|
|
This driver is free software; you can redistribute it and/or modify
|
|
it under the terms of Version 2 of the GNU General Public License as
|
|
published by the Free Software Foundation.
|
|
|
|
Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
|
|
|
|
History: see the git log.
|
|
|
|
Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
|
|
|
|
This driver exists because the "normal" serial driver doesn't work too well
|
|
with GSM modems. Issues:
|
|
- data loss -- one single Receive URB is not nearly enough
|
|
- nonstandard flow (Option devices) control
|
|
- controlling the baud rate doesn't make sense
|
|
|
|
This driver is named "option" because the most common device it's
|
|
used for is a PC-Card (with an internal OHCI-USB interface, behind
|
|
which the GSM interface sits), made by Option Inc.
|
|
|
|
Some of the "one port" devices actually exhibit multiple USB instances
|
|
on the USB bus. This is not a bug, these ports are used for different
|
|
device features.
|
|
*/
|
|
|
|
#define DRIVER_VERSION "v0.7.1"
|
|
#define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
|
|
#define DRIVER_DESC "USB Driver for GSM modems"
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/jiffies.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/tty_flip.h>
|
|
#include <linux/module.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/usb/serial.h>
|
|
|
|
/* Function prototypes */
|
|
static int option_open(struct usb_serial_port *port, struct file *filp);
|
|
static void option_close(struct usb_serial_port *port, struct file *filp);
|
|
static int option_startup(struct usb_serial *serial);
|
|
static void option_shutdown(struct usb_serial *serial);
|
|
static void option_rx_throttle(struct usb_serial_port *port);
|
|
static void option_rx_unthrottle(struct usb_serial_port *port);
|
|
static int option_write_room(struct usb_serial_port *port);
|
|
|
|
static void option_instat_callback(struct urb *urb);
|
|
|
|
static int option_write(struct usb_serial_port *port,
|
|
const unsigned char *buf, int count);
|
|
|
|
static int option_chars_in_buffer(struct usb_serial_port *port);
|
|
static int option_ioctl(struct usb_serial_port *port, struct file *file,
|
|
unsigned int cmd, unsigned long arg);
|
|
static void option_set_termios(struct usb_serial_port *port,
|
|
struct ktermios *old);
|
|
static void option_break_ctl(struct usb_serial_port *port, int break_state);
|
|
static int option_tiocmget(struct usb_serial_port *port, struct file *file);
|
|
static int option_tiocmset(struct usb_serial_port *port, struct file *file,
|
|
unsigned int set, unsigned int clear);
|
|
static int option_send_setup(struct usb_serial_port *port);
|
|
|
|
/* Vendor and product IDs */
|
|
#define OPTION_VENDOR_ID 0x0AF0
|
|
#define OPTION_PRODUCT_COLT 0x5000
|
|
#define OPTION_PRODUCT_RICOLA 0x6000
|
|
#define OPTION_PRODUCT_RICOLA_LIGHT 0x6100
|
|
#define OPTION_PRODUCT_RICOLA_QUAD 0x6200
|
|
#define OPTION_PRODUCT_RICOLA_QUAD_LIGHT 0x6300
|
|
#define OPTION_PRODUCT_RICOLA_NDIS 0x6050
|
|
#define OPTION_PRODUCT_RICOLA_NDIS_LIGHT 0x6150
|
|
#define OPTION_PRODUCT_RICOLA_NDIS_QUAD 0x6250
|
|
#define OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT 0x6350
|
|
#define OPTION_PRODUCT_COBRA 0x6500
|
|
#define OPTION_PRODUCT_COBRA_BUS 0x6501
|
|
#define OPTION_PRODUCT_VIPER 0x6600
|
|
#define OPTION_PRODUCT_VIPER_BUS 0x6601
|
|
#define OPTION_PRODUCT_GT_MAX_READY 0x6701
|
|
#define OPTION_PRODUCT_GT_MAX 0x6711
|
|
#define OPTION_PRODUCT_FUJI_MODEM_LIGHT 0x6721
|
|
#define OPTION_PRODUCT_FUJI_MODEM_GT 0x6741
|
|
#define OPTION_PRODUCT_FUJI_MODEM_EX 0x6761
|
|
#define OPTION_PRODUCT_FUJI_NETWORK_LIGHT 0x6731
|
|
#define OPTION_PRODUCT_FUJI_NETWORK_GT 0x6751
|
|
#define OPTION_PRODUCT_FUJI_NETWORK_EX 0x6771
|
|
#define OPTION_PRODUCT_KOI_MODEM 0x6800
|
|
#define OPTION_PRODUCT_KOI_NETWORK 0x6811
|
|
#define OPTION_PRODUCT_SCORPION_MODEM 0x6901
|
|
#define OPTION_PRODUCT_SCORPION_NETWORK 0x6911
|
|
#define OPTION_PRODUCT_ETNA_MODEM 0x7001
|
|
#define OPTION_PRODUCT_ETNA_NETWORK 0x7011
|
|
#define OPTION_PRODUCT_ETNA_MODEM_LITE 0x7021
|
|
#define OPTION_PRODUCT_ETNA_MODEM_GT 0x7041
|
|
#define OPTION_PRODUCT_ETNA_MODEM_EX 0x7061
|
|
#define OPTION_PRODUCT_ETNA_NETWORK_LITE 0x7031
|
|
#define OPTION_PRODUCT_ETNA_NETWORK_GT 0x7051
|
|
#define OPTION_PRODUCT_ETNA_NETWORK_EX 0x7071
|
|
#define OPTION_PRODUCT_ETNA_KOI_MODEM 0x7100
|
|
#define OPTION_PRODUCT_ETNA_KOI_NETWORK 0x7111
|
|
|
|
#define HUAWEI_VENDOR_ID 0x12D1
|
|
#define HUAWEI_PRODUCT_E600 0x1001
|
|
#define HUAWEI_PRODUCT_E220 0x1003
|
|
|
|
#define NOVATELWIRELESS_VENDOR_ID 0x1410
|
|
|
|
#define ANYDATA_VENDOR_ID 0x16d5
|
|
#define ANYDATA_PRODUCT_ADU_E100A 0x6501
|
|
#define ANYDATA_PRODUCT_ADU_500A 0x6502
|
|
|
|
#define BANDRICH_VENDOR_ID 0x1A8D
|
|
#define BANDRICH_PRODUCT_C100_1 0x1002
|
|
#define BANDRICH_PRODUCT_C100_2 0x1003
|
|
|
|
#define DELL_VENDOR_ID 0x413C
|
|
|
|
static struct usb_device_id option_ids[] = {
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_LIGHT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_QUAD_LIGHT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_LIGHT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA_NDIS_QUAD_LIGHT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA_BUS) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_VIPER_BUS) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX_READY) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_GT_MAX) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_LIGHT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_GT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_MODEM_EX) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_LIGHT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_GT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUJI_NETWORK_EX) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_MODEM) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_KOI_NETWORK) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_MODEM) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_SCORPION_NETWORK) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_LITE) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_GT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_MODEM_EX) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_LITE) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_GT) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_NETWORK_EX) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_MODEM) },
|
|
{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_ETNA_KOI_NETWORK) },
|
|
{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
|
|
{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E220) },
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1100) }, /* Novatel Merlin XS620/S640 */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1110) }, /* Novatel Merlin S620 */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1120) }, /* Novatel Merlin EX720 */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1130) }, /* Novatel Merlin S720 */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1400) }, /* Novatel U730 */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1410) }, /* Novatel U740 */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1420) }, /* Novatel EU870 */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x1430) }, /* Novatel Merlin XU870 HSDPA/3G */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2100) }, /* Novatel EV620 CDMA/EV-DO */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2110) }, /* Novatel Merlin ES620 / Merlin ES720 / Ovation U720 */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2130) }, /* Novatel Merlin ES620 SM Bus */
|
|
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2410) }, /* Novatel EU740 */
|
|
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
|
|
{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
|
|
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
|
|
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
|
|
{ USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard */
|
|
{ } /* Terminating entry */
|
|
};
|
|
MODULE_DEVICE_TABLE(usb, option_ids);
|
|
|
|
static struct usb_driver option_driver = {
|
|
.name = "option",
|
|
.probe = usb_serial_probe,
|
|
.disconnect = usb_serial_disconnect,
|
|
.id_table = option_ids,
|
|
.no_dynamic_id = 1,
|
|
};
|
|
|
|
/* The card has three separate interfaces, which the serial driver
|
|
* recognizes separately, thus num_port=1.
|
|
*/
|
|
|
|
static struct usb_serial_driver option_1port_device = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "option1",
|
|
},
|
|
.description = "GSM modem (1-port)",
|
|
.usb_driver = &option_driver,
|
|
.id_table = option_ids,
|
|
.num_interrupt_in = NUM_DONT_CARE,
|
|
.num_bulk_in = NUM_DONT_CARE,
|
|
.num_bulk_out = NUM_DONT_CARE,
|
|
.num_ports = 1,
|
|
.open = option_open,
|
|
.close = option_close,
|
|
.write = option_write,
|
|
.write_room = option_write_room,
|
|
.chars_in_buffer = option_chars_in_buffer,
|
|
.throttle = option_rx_throttle,
|
|
.unthrottle = option_rx_unthrottle,
|
|
.ioctl = option_ioctl,
|
|
.set_termios = option_set_termios,
|
|
.break_ctl = option_break_ctl,
|
|
.tiocmget = option_tiocmget,
|
|
.tiocmset = option_tiocmset,
|
|
.attach = option_startup,
|
|
.shutdown = option_shutdown,
|
|
.read_int_callback = option_instat_callback,
|
|
};
|
|
|
|
#ifdef CONFIG_USB_DEBUG
|
|
static int debug;
|
|
#else
|
|
#define debug 0
|
|
#endif
|
|
|
|
/* per port private data */
|
|
|
|
#define N_IN_URB 4
|
|
#define N_OUT_URB 1
|
|
#define IN_BUFLEN 4096
|
|
#define OUT_BUFLEN 128
|
|
|
|
struct option_port_private {
|
|
/* Input endpoints and buffer for this port */
|
|
struct urb *in_urbs[N_IN_URB];
|
|
char in_buffer[N_IN_URB][IN_BUFLEN];
|
|
/* Output endpoints and buffer for this port */
|
|
struct urb *out_urbs[N_OUT_URB];
|
|
char out_buffer[N_OUT_URB][OUT_BUFLEN];
|
|
|
|
/* Settings for the port */
|
|
int rts_state; /* Handshaking pins (outputs) */
|
|
int dtr_state;
|
|
int cts_state; /* Handshaking pins (inputs) */
|
|
int dsr_state;
|
|
int dcd_state;
|
|
int ri_state;
|
|
|
|
unsigned long tx_start_time[N_OUT_URB];
|
|
};
|
|
|
|
/* Functions used by new usb-serial code. */
|
|
static int __init option_init(void)
|
|
{
|
|
int retval;
|
|
retval = usb_serial_register(&option_1port_device);
|
|
if (retval)
|
|
goto failed_1port_device_register;
|
|
retval = usb_register(&option_driver);
|
|
if (retval)
|
|
goto failed_driver_register;
|
|
|
|
info(DRIVER_DESC ": " DRIVER_VERSION);
|
|
|
|
return 0;
|
|
|
|
failed_driver_register:
|
|
usb_serial_deregister (&option_1port_device);
|
|
failed_1port_device_register:
|
|
return retval;
|
|
}
|
|
|
|
static void __exit option_exit(void)
|
|
{
|
|
usb_deregister (&option_driver);
|
|
usb_serial_deregister (&option_1port_device);
|
|
}
|
|
|
|
module_init(option_init);
|
|
module_exit(option_exit);
|
|
|
|
static void option_rx_throttle(struct usb_serial_port *port)
|
|
{
|
|
dbg("%s", __FUNCTION__);
|
|
}
|
|
|
|
static void option_rx_unthrottle(struct usb_serial_port *port)
|
|
{
|
|
dbg("%s", __FUNCTION__);
|
|
}
|
|
|
|
static void option_break_ctl(struct usb_serial_port *port, int break_state)
|
|
{
|
|
/* Unfortunately, I don't know how to send a break */
|
|
dbg("%s", __FUNCTION__);
|
|
}
|
|
|
|
static void option_set_termios(struct usb_serial_port *port,
|
|
struct ktermios *old_termios)
|
|
{
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
option_send_setup(port);
|
|
}
|
|
|
|
static int option_tiocmget(struct usb_serial_port *port, struct file *file)
|
|
{
|
|
unsigned int value;
|
|
struct option_port_private *portdata;
|
|
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
value = ((portdata->rts_state) ? TIOCM_RTS : 0) |
|
|
((portdata->dtr_state) ? TIOCM_DTR : 0) |
|
|
((portdata->cts_state) ? TIOCM_CTS : 0) |
|
|
((portdata->dsr_state) ? TIOCM_DSR : 0) |
|
|
((portdata->dcd_state) ? TIOCM_CAR : 0) |
|
|
((portdata->ri_state) ? TIOCM_RNG : 0);
|
|
|
|
return value;
|
|
}
|
|
|
|
static int option_tiocmset(struct usb_serial_port *port, struct file *file,
|
|
unsigned int set, unsigned int clear)
|
|
{
|
|
struct option_port_private *portdata;
|
|
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
if (set & TIOCM_RTS)
|
|
portdata->rts_state = 1;
|
|
if (set & TIOCM_DTR)
|
|
portdata->dtr_state = 1;
|
|
|
|
if (clear & TIOCM_RTS)
|
|
portdata->rts_state = 0;
|
|
if (clear & TIOCM_DTR)
|
|
portdata->dtr_state = 0;
|
|
return option_send_setup(port);
|
|
}
|
|
|
|
static int option_ioctl(struct usb_serial_port *port, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
|
|
/* Write */
|
|
static int option_write(struct usb_serial_port *port,
|
|
const unsigned char *buf, int count)
|
|
{
|
|
struct option_port_private *portdata;
|
|
int i;
|
|
int left, todo;
|
|
struct urb *this_urb = NULL; /* spurious */
|
|
int err;
|
|
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
dbg("%s: write (%d chars)", __FUNCTION__, count);
|
|
|
|
i = 0;
|
|
left = count;
|
|
for (i=0; left > 0 && i < N_OUT_URB; i++) {
|
|
todo = left;
|
|
if (todo > OUT_BUFLEN)
|
|
todo = OUT_BUFLEN;
|
|
|
|
this_urb = portdata->out_urbs[i];
|
|
if (this_urb->status == -EINPROGRESS) {
|
|
if (time_before(jiffies,
|
|
portdata->tx_start_time[i] + 10 * HZ))
|
|
continue;
|
|
usb_unlink_urb(this_urb);
|
|
continue;
|
|
}
|
|
if (this_urb->status != 0)
|
|
dbg("usb_write %p failed (err=%d)",
|
|
this_urb, this_urb->status);
|
|
|
|
dbg("%s: endpoint %d buf %d", __FUNCTION__,
|
|
usb_pipeendpoint(this_urb->pipe), i);
|
|
|
|
/* send the data */
|
|
memcpy (this_urb->transfer_buffer, buf, todo);
|
|
this_urb->transfer_buffer_length = todo;
|
|
|
|
this_urb->dev = port->serial->dev;
|
|
err = usb_submit_urb(this_urb, GFP_ATOMIC);
|
|
if (err) {
|
|
dbg("usb_submit_urb %p (write bulk) failed "
|
|
"(%d, has %d)", this_urb,
|
|
err, this_urb->status);
|
|
continue;
|
|
}
|
|
portdata->tx_start_time[i] = jiffies;
|
|
buf += todo;
|
|
left -= todo;
|
|
}
|
|
|
|
count -= left;
|
|
dbg("%s: wrote (did %d)", __FUNCTION__, count);
|
|
return count;
|
|
}
|
|
|
|
static void option_indat_callback(struct urb *urb)
|
|
{
|
|
int err;
|
|
int endpoint;
|
|
struct usb_serial_port *port;
|
|
struct tty_struct *tty;
|
|
unsigned char *data = urb->transfer_buffer;
|
|
|
|
dbg("%s: %p", __FUNCTION__, urb);
|
|
|
|
endpoint = usb_pipeendpoint(urb->pipe);
|
|
port = (struct usb_serial_port *) urb->context;
|
|
|
|
if (urb->status) {
|
|
dbg("%s: nonzero status: %d on endpoint %02x.",
|
|
__FUNCTION__, urb->status, endpoint);
|
|
} else {
|
|
tty = port->tty;
|
|
if (urb->actual_length) {
|
|
tty_buffer_request_room(tty, urb->actual_length);
|
|
tty_insert_flip_string(tty, data, urb->actual_length);
|
|
tty_flip_buffer_push(tty);
|
|
} else {
|
|
dbg("%s: empty read urb received", __FUNCTION__);
|
|
}
|
|
|
|
/* Resubmit urb so we continue receiving */
|
|
if (port->open_count && urb->status != -ESHUTDOWN) {
|
|
err = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (err)
|
|
printk(KERN_ERR "%s: resubmit read urb failed. "
|
|
"(%d)", __FUNCTION__, err);
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void option_outdat_callback(struct urb *urb)
|
|
{
|
|
struct usb_serial_port *port;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
port = (struct usb_serial_port *) urb->context;
|
|
|
|
usb_serial_port_softint(port);
|
|
}
|
|
|
|
static void option_instat_callback(struct urb *urb)
|
|
{
|
|
int err;
|
|
struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
|
|
struct option_port_private *portdata = usb_get_serial_port_data(port);
|
|
struct usb_serial *serial = port->serial;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
dbg("%s: urb %p port %p has data %p", __FUNCTION__,urb,port,portdata);
|
|
|
|
if (urb->status == 0) {
|
|
struct usb_ctrlrequest *req_pkt =
|
|
(struct usb_ctrlrequest *)urb->transfer_buffer;
|
|
|
|
if (!req_pkt) {
|
|
dbg("%s: NULL req_pkt\n", __FUNCTION__);
|
|
return;
|
|
}
|
|
if ((req_pkt->bRequestType == 0xA1) &&
|
|
(req_pkt->bRequest == 0x20)) {
|
|
int old_dcd_state;
|
|
unsigned char signals = *((unsigned char *)
|
|
urb->transfer_buffer +
|
|
sizeof(struct usb_ctrlrequest));
|
|
|
|
dbg("%s: signal x%x", __FUNCTION__, signals);
|
|
|
|
old_dcd_state = portdata->dcd_state;
|
|
portdata->cts_state = 1;
|
|
portdata->dcd_state = ((signals & 0x01) ? 1 : 0);
|
|
portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
|
|
portdata->ri_state = ((signals & 0x08) ? 1 : 0);
|
|
|
|
if (port->tty && !C_CLOCAL(port->tty) &&
|
|
old_dcd_state && !portdata->dcd_state)
|
|
tty_hangup(port->tty);
|
|
} else {
|
|
dbg("%s: type %x req %x", __FUNCTION__,
|
|
req_pkt->bRequestType,req_pkt->bRequest);
|
|
}
|
|
} else
|
|
dbg("%s: error %d", __FUNCTION__, urb->status);
|
|
|
|
/* Resubmit urb so we continue receiving IRQ data */
|
|
if (urb->status != -ESHUTDOWN) {
|
|
urb->dev = serial->dev;
|
|
err = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (err)
|
|
dbg("%s: resubmit intr urb failed. (%d)",
|
|
__FUNCTION__, err);
|
|
}
|
|
}
|
|
|
|
static int option_write_room(struct usb_serial_port *port)
|
|
{
|
|
struct option_port_private *portdata;
|
|
int i;
|
|
int data_len = 0;
|
|
struct urb *this_urb;
|
|
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
for (i=0; i < N_OUT_URB; i++) {
|
|
this_urb = portdata->out_urbs[i];
|
|
if (this_urb && this_urb->status != -EINPROGRESS)
|
|
data_len += OUT_BUFLEN;
|
|
}
|
|
|
|
dbg("%s: %d", __FUNCTION__, data_len);
|
|
return data_len;
|
|
}
|
|
|
|
static int option_chars_in_buffer(struct usb_serial_port *port)
|
|
{
|
|
struct option_port_private *portdata;
|
|
int i;
|
|
int data_len = 0;
|
|
struct urb *this_urb;
|
|
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
for (i=0; i < N_OUT_URB; i++) {
|
|
this_urb = portdata->out_urbs[i];
|
|
if (this_urb && this_urb->status == -EINPROGRESS)
|
|
data_len += this_urb->transfer_buffer_length;
|
|
}
|
|
dbg("%s: %d", __FUNCTION__, data_len);
|
|
return data_len;
|
|
}
|
|
|
|
static int option_open(struct usb_serial_port *port, struct file *filp)
|
|
{
|
|
struct option_port_private *portdata;
|
|
struct usb_serial *serial = port->serial;
|
|
int i, err;
|
|
struct urb *urb;
|
|
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
/* Set some sane defaults */
|
|
portdata->rts_state = 1;
|
|
portdata->dtr_state = 1;
|
|
|
|
/* Reset low level data toggle and start reading from endpoints */
|
|
for (i = 0; i < N_IN_URB; i++) {
|
|
urb = portdata->in_urbs[i];
|
|
if (! urb)
|
|
continue;
|
|
if (urb->dev != serial->dev) {
|
|
dbg("%s: dev %p != %p", __FUNCTION__,
|
|
urb->dev, serial->dev);
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* make sure endpoint data toggle is synchronized with the
|
|
* device
|
|
*/
|
|
usb_clear_halt(urb->dev, urb->pipe);
|
|
|
|
err = usb_submit_urb(urb, GFP_KERNEL);
|
|
if (err) {
|
|
dbg("%s: submit urb %d failed (%d) %d",
|
|
__FUNCTION__, i, err,
|
|
urb->transfer_buffer_length);
|
|
}
|
|
}
|
|
|
|
/* Reset low level data toggle on out endpoints */
|
|
for (i = 0; i < N_OUT_URB; i++) {
|
|
urb = portdata->out_urbs[i];
|
|
if (! urb)
|
|
continue;
|
|
urb->dev = serial->dev;
|
|
/* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
|
|
usb_pipeout(urb->pipe), 0); */
|
|
}
|
|
|
|
port->tty->low_latency = 1;
|
|
|
|
option_send_setup(port);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void option_close(struct usb_serial_port *port, struct file *filp)
|
|
{
|
|
int i;
|
|
struct usb_serial *serial = port->serial;
|
|
struct option_port_private *portdata;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
portdata->rts_state = 0;
|
|
portdata->dtr_state = 0;
|
|
|
|
if (serial->dev) {
|
|
option_send_setup(port);
|
|
|
|
/* Stop reading/writing urbs */
|
|
for (i = 0; i < N_IN_URB; i++)
|
|
usb_kill_urb(portdata->in_urbs[i]);
|
|
for (i = 0; i < N_OUT_URB; i++)
|
|
usb_kill_urb(portdata->out_urbs[i]);
|
|
}
|
|
port->tty = NULL;
|
|
}
|
|
|
|
/* Helper functions used by option_setup_urbs */
|
|
static struct urb *option_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 */
|
|
|
|
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;
|
|
}
|
|
|
|
/* Setup urbs */
|
|
static void option_setup_urbs(struct usb_serial *serial)
|
|
{
|
|
int i,j;
|
|
struct usb_serial_port *port;
|
|
struct option_port_private *portdata;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
for (i = 0; i < serial->num_ports; i++) {
|
|
port = serial->port[i];
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
/* Do indat endpoints first */
|
|
for (j = 0; j < N_IN_URB; ++j) {
|
|
portdata->in_urbs[j] = option_setup_urb (serial,
|
|
port->bulk_in_endpointAddress, USB_DIR_IN, port,
|
|
portdata->in_buffer[j], IN_BUFLEN, option_indat_callback);
|
|
}
|
|
|
|
/* outdat endpoints */
|
|
for (j = 0; j < N_OUT_URB; ++j) {
|
|
portdata->out_urbs[j] = option_setup_urb (serial,
|
|
port->bulk_out_endpointAddress, USB_DIR_OUT, port,
|
|
portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int option_send_setup(struct usb_serial_port *port)
|
|
{
|
|
struct usb_serial *serial = port->serial;
|
|
struct option_port_private *portdata;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
if (port->number != 0)
|
|
return 0;
|
|
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
if (port->tty) {
|
|
int val = 0;
|
|
if (portdata->dtr_state)
|
|
val |= 0x01;
|
|
if (portdata->rts_state)
|
|
val |= 0x02;
|
|
|
|
return usb_control_msg(serial->dev,
|
|
usb_rcvctrlpipe(serial->dev, 0),
|
|
0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int option_startup(struct usb_serial *serial)
|
|
{
|
|
int i, err;
|
|
struct usb_serial_port *port;
|
|
struct option_port_private *portdata;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
/* Now setup per port private data */
|
|
for (i = 0; i < serial->num_ports; i++) {
|
|
port = serial->port[i];
|
|
portdata = kzalloc(sizeof(*portdata), GFP_KERNEL);
|
|
if (!portdata) {
|
|
dbg("%s: kmalloc for option_port_private (%d) failed!.",
|
|
__FUNCTION__, i);
|
|
return (1);
|
|
}
|
|
|
|
usb_set_serial_port_data(port, portdata);
|
|
|
|
if (! port->interrupt_in_urb)
|
|
continue;
|
|
err = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
|
|
if (err)
|
|
dbg("%s: submit irq_in urb failed %d",
|
|
__FUNCTION__, err);
|
|
}
|
|
|
|
option_setup_urbs(serial);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void option_shutdown(struct usb_serial *serial)
|
|
{
|
|
int i, j;
|
|
struct usb_serial_port *port;
|
|
struct option_port_private *portdata;
|
|
|
|
dbg("%s", __FUNCTION__);
|
|
|
|
/* Stop reading/writing urbs */
|
|
for (i = 0; i < serial->num_ports; ++i) {
|
|
port = serial->port[i];
|
|
portdata = usb_get_serial_port_data(port);
|
|
for (j = 0; j < N_IN_URB; j++)
|
|
usb_kill_urb(portdata->in_urbs[j]);
|
|
for (j = 0; j < N_OUT_URB; j++)
|
|
usb_kill_urb(portdata->out_urbs[j]);
|
|
}
|
|
|
|
/* Now free them */
|
|
for (i = 0; i < serial->num_ports; ++i) {
|
|
port = serial->port[i];
|
|
portdata = usb_get_serial_port_data(port);
|
|
|
|
for (j = 0; j < N_IN_URB; j++) {
|
|
if (portdata->in_urbs[j]) {
|
|
usb_free_urb(portdata->in_urbs[j]);
|
|
portdata->in_urbs[j] = NULL;
|
|
}
|
|
}
|
|
for (j = 0; j < N_OUT_URB; j++) {
|
|
if (portdata->out_urbs[j]) {
|
|
usb_free_urb(portdata->out_urbs[j]);
|
|
portdata->out_urbs[j] = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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_VERSION(DRIVER_VERSION);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
#ifdef CONFIG_USB_DEBUG
|
|
module_param(debug, bool, S_IRUGO | S_IWUSR);
|
|
MODULE_PARM_DESC(debug, "Debug messages");
|
|
#endif
|
|
|