--- /dev/null +++ b/drivers/usb/serial/sierra.c @@ -0,0 +1,1446 @@ +/* + * Sierra Wireless CDMA Wireless Serial USB drive + * + * Current Copy modified by: Kevin Lloyd + * Original Copy written by: 2005 Greg Kroah-Hartman suse.de> + * + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * Version history: + Version 1.03 (Lloyd): + Included support for DTR control and enhanced buffering (should help + speed). + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef CONFIG_USB_SERIAL_DEBUG + static int debug = 1; +#else + static int debug; +#endif + +#include "usb-serial.h" +#include "sierra.h" +#if defined(CONFIG_USB_SERIAL_PL2303) || defined(CONFIG_USB_SERIAL_PL2303_MODULE) +#include "pl2303.h" // see /* BEGIN HORRIBLE HACK FOR PL2303 */ below +#endif + +#define DRIVER_VERSION "v1.03" + +#if 0 +#define USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE 0 + +#define USB_DEVICE_POWER_STATE_D0 0x0000 +#define USB_DEVICE_POWER_STATE_D1 0x0001 +#define USB_DEVICE_POWER_STATE_D2 0x0002 +#define USB_DEVICE_POWER_STATE_D3 0x0003 + +#define SET_CONTROL_LINE_STATE 0x22 +/* + * Output control lines. + */ + +#define ACM_CTRL_DTR 0x01 +#define ACM_CTRL_RTS 0x02 +#endif + +//static int sw_attach(struct usb_serial *serial); +static void sw_usb_serial_generic_shutdown(struct usb_serial *serial); + +static int sw_usb_serial_generic_open(struct usb_serial_port *port, struct file *filp); +static void sw_usb_serial_generic_close(struct usb_serial_port *port, struct file *filp); + +#if 1 +/*-----------------------------------------------------------*/ +static int serial_refcount; +static struct tty_driver serial_tty_driver; +static struct tty_struct * serial_tty[SERIAL_TTY_MINORS]; +static struct termios * serial_termios[SERIAL_TTY_MINORS]; +static struct termios * serial_termios_locked[SERIAL_TTY_MINORS]; +static struct usb_serial *serial_table[SERIAL_TTY_MINORS]; /* initially all NULL */ + +static LIST_HEAD(usb_serial_driver_list); +static struct usb_serial *get_free_serial (int num_ports, int *minor); +static void generic_write_bulk_callback (struct urb *urb); +static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum,const struct usb_device_id *id); +static void usb_serial_disconnect(struct usb_device *dev, void *ptr); +static void sw_usb_serial_generic_read_bulk_callback (struct urb *urb); +static void port_softint(void *private); +static void return_serial (struct usb_serial *serial); +static struct usb_serial *get_free_serial (int num_ports, int *minor); +static int serial_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data); +/*-----------------------------------------------------------*/ + +#endif + + +static struct usb_device_id id_table [] = { + { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ + { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ + { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ + { USB_DEVICE(0x0f30, 0x1b1d) }, /* Sierra Wireless MC5720 */ + { USB_DEVICE(0x1199, 0x0020) }, /* Sierra Wireless MC5725 */ + { USB_DEVICE(0x1199, 0x0220) }, /* Sierra Wireless MC5725 */ + { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */ + { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */ + { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless USB Dongle 595U */ + { USB_DEVICE(0x1199, 0x0023) }, /* Sierra Wireless C597 */ + + { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */ + { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */ + { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */ + { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 & AC 875U */ + { USB_DEVICE(0x1199, 0x6813) }, /* Sierra Wireless MC8775 (Thinkpad internal) */ + { USB_DEVICE(0x1199, 0x6815) }, /* Sierra Wireless MC8775 */ + { USB_DEVICE(0x03f0, 0x1e1d) }, /* HP hs2300 a.k.a MC8775 */ + { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */ + { USB_DEVICE(0x1199, 0x6821) }, /* Sierra Wireless AirCard 875U */ + { USB_DEVICE(0x1199, 0x6832) }, /* Sierra Wireless MC8780*/ + { USB_DEVICE(0x1199, 0x6833) }, /* Sierra Wireless MC8781*/ + { USB_DEVICE(0x1199, 0x683B) }, /* Sierra Wireless MC8785 Composite*/ + { USB_DEVICE(0x1199, 0x6850) }, /* Sierra Wireless AirCard 880 */ + { USB_DEVICE(0x1199, 0x6851) }, /* Sierra Wireless AirCard 881 */ + { USB_DEVICE(0x1199, 0x6852) }, /* Sierra Wireless AirCard 880 E */ + { USB_DEVICE(0x1199, 0x6853) }, /* Sierra Wireless AirCard 881 E */ + { USB_DEVICE(0x1199, 0x6855) }, /* Sierra Wireless AirCard 880 U */ + { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ + { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ + { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ + + { USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */ + { USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */ + + { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */ + { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra Wireless PC 5220 */ + { USB_DEVICE(0x05C6, 0x6613) }, /* Onda H600/ZTE MF330 */ + { } +}; + +MODULE_DEVICE_TABLE(usb, id_table); + +static struct usb_driver sierra_driver = { +// .owner = THIS_MODULE, + .name = "Sierra wireless", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = id_table, +}; + +static struct usb_serial_device_type sierra_device = { +// .driver = { + .owner = THIS_MODULE, + .name = "Sierra Wireless", +// }, + .id_table = id_table, + .num_interrupt_in = NUM_DONT_CARE, + .num_bulk_in = NUM_DONT_CARE, + .num_bulk_out = NUM_DONT_CARE, + .num_ports = 3, + //.startup = sw_attach, + .shutdown = sw_usb_serial_generic_shutdown, + .open = sw_usb_serial_generic_open, + .close = sw_usb_serial_generic_close, +}; + +#define MAX_NUM_PORTS 8 + +/* local function prototypes */ +static int serial_open (struct tty_struct *tty, struct file * filp); +static void serial_close (struct tty_struct *tty, struct file * filp); +static int serial_write (struct tty_struct * tty, int from_user, const unsigned char *buf, int count); +static int serial_write_room (struct tty_struct *tty); +static int serial_chars_in_buffer (struct tty_struct *tty); +static void serial_throttle (struct tty_struct * tty); +static void serial_unthrottle (struct tty_struct * tty); +static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg); +static void serial_set_termios (struct tty_struct *tty, struct termios * old); +//static void serial_shutdown (struct usb_serial *serial); +static void serial_break (struct tty_struct *tty, int break_state); +static int generic_write (struct usb_serial_port *port, int from_user, const unsigned char *buf, int count); +static int generic_write_room (struct usb_serial_port *port); +static void generic_cleanup (struct usb_serial_port *port); +static int generic_chars_in_buffer (struct usb_serial_port *port); +//static void generic_shutdown (struct usb_serial *serial); + +#if 1 +static struct tty_driver serial_tty_driver = { + .magic = TTY_DRIVER_MAGIC, + .driver_name = "usb-serial", +#ifndef CONFIG_DEVFS_FS + .name = "ttyUSB", +#else + .name = "usb/tts/%d", +#endif + .major = SERIAL_TTY_MAJOR, + .minor_start = 0, + .num = SERIAL_TTY_MINORS, + .type = TTY_DRIVER_TYPE_SERIAL, + .subtype = SERIAL_TYPE_NORMAL, + .flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS, + + .refcount = &serial_refcount, + .table = serial_tty, + .termios = serial_termios, + .termios_locked = serial_termios_locked, + + .open = serial_open, + .close = serial_close, + .write = serial_write, + .write_room = serial_write_room, + .ioctl = serial_ioctl, + .set_termios = serial_set_termios, + .throttle = serial_throttle, + .unthrottle = serial_unthrottle, + .break_ctl = serial_break, + .chars_in_buffer = serial_chars_in_buffer, + .read_proc = serial_read_proc, +}; +#endif + + +/***************************************************************************** + * Driver tty interface functions + *****************************************************************************/ +static struct usb_serial *get_serial_by_minor (unsigned int minor) +{ + return serial_table[minor]; +} + +static int serial_open (struct tty_struct *tty, struct file * filp) +{ + struct usb_serial *serial; + struct usb_serial_port *port; + unsigned int portNumber; + int retval = 0; + + dbg("%s", __FUNCTION__); + + /* initialize the pointer incase something fails */ + tty->driver_data = NULL; + + /* get the serial object associated with this tty pointer */ + serial = get_serial_by_minor (MINOR(tty->device)); + + if (serial_paranoia_check (serial, __FUNCTION__)) + return -ENODEV; + + /* set up our port structure making the tty driver remember our port object, and us it */ + portNumber = MINOR(tty->device) - serial->minor; + port = &serial->port[portNumber]; + tty->driver_data = port; + + down (&port->sem); + port->tty = tty; + + /* lock this module before we call it */ + if (serial->type->owner) + __MOD_INC_USE_COUNT(serial->type->owner); + + ++port->open_count; + if (port->open_count == 1) { + /* only call the device specific open if this + * is the first time the port is opened */ + if (serial->type->open) + retval = serial->type->open(port, filp); + else + retval = sw_usb_serial_generic_open(port, filp);//@.@ + } + + if (retval) { + port->open_count = 0; + if (serial->type->owner) + __MOD_DEC_USE_COUNT(serial->type->owner); + } + + up (&port->sem); + return retval; +} + +static void __serial_close(struct usb_serial_port *port, struct file *filp) +{ + if (!port->open_count) { + dbg ("%s - port not opened", __FUNCTION__); + return; + } + + --port->open_count; + if (port->open_count <= 0) { + /* only call the device specific close if this + * port is being closed by the last owner */ + if (port->serial->type->close) + port->serial->type->close(port, filp); + else + //generic_close(port, filp); + sw_usb_serial_generic_close(port, filp); + port->open_count = 0; + } + + if (port->serial->type->owner) + __MOD_DEC_USE_COUNT(port->serial->type->owner); +} + +static void serial_close(struct tty_struct *tty, struct file * filp) +{ + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + + if (!serial) + return; + + down (&port->sem); + + dbg("%s - port %d", __FUNCTION__, port->number); + + /* if disconnect beat us to the punch here, there's nothing to do */ + if (tty->driver_data) { + __serial_close(port, filp); + } + + up (&port->sem); +} + +static int serial_write (struct tty_struct * tty, int from_user, const unsigned char *buf, int count) +{ + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + int retval = -EINVAL; + + if (!serial) + return -ENODEV; + + down (&port->sem); + + dbg("%s - port %d, %d byte(s)", __FUNCTION__, port->number, count); + + if (!port->open_count) { + dbg("%s - port not opened", __FUNCTION__); + goto exit; + } + + /* pass on to the driver specific version of this function if it is available */ + if (serial->type->write) + retval = serial->type->write(port, from_user, buf, count); + else + retval = generic_write(port, from_user, buf, count); + +exit: + up (&port->sem); + return retval; +} + +static int serial_write_room (struct tty_struct *tty) +{ + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + int retval = -EINVAL; + + if (!serial) + return -ENODEV; + + down (&port->sem); + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (!port->open_count) { + dbg("%s - port not open", __FUNCTION__); + goto exit; + } + + /* pass on to the driver specific version of this function if it is available */ + if (serial->type->write_room) + retval = serial->type->write_room(port); + else + retval = generic_write_room(port); + +exit: + up (&port->sem); + return retval; +} + +static int serial_chars_in_buffer (struct tty_struct *tty) +{ + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + int retval = -EINVAL; + + if (!serial) + return -ENODEV; + + down (&port->sem); + + dbg("%s = port %d", __FUNCTION__, port->number); + + if (!port->open_count) { + dbg("%s - port not open", __FUNCTION__); + goto exit; + } + + /* pass on to the driver specific version of this function if it is available */ + if (serial->type->chars_in_buffer) + retval = serial->type->chars_in_buffer(port); + else + retval = generic_chars_in_buffer(port); + +exit: + up (&port->sem); + return retval; +} + +static void serial_throttle (struct tty_struct * tty) +{ + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + + if (!serial) + return; + + down (&port->sem); + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (!port->open_count) { + dbg ("%s - port not open", __FUNCTION__); + goto exit; + } + + /* pass on to the driver specific version of this function */ + if (serial->type->throttle) + serial->type->throttle(port); + +exit: + up (&port->sem); +} + +static void serial_unthrottle (struct tty_struct * tty) +{ + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + + if (!serial) + return; + + down (&port->sem); + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (!port->open_count) { + dbg("%s - port not open", __FUNCTION__); + goto exit; + } + + /* pass on to the driver specific version of this function */ + if (serial->type->unthrottle) + serial->type->unthrottle(port); + +exit: + up (&port->sem); +} + +static int serial_ioctl (struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) +{ + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + int retval = -ENODEV; + + if (!serial) + return -ENODEV; + + down (&port->sem); + + dbg("%s - port %d, cmd 0x%.4x", __FUNCTION__, port->number, cmd); + + if (!port->open_count) { + dbg ("%s - port not open", __FUNCTION__); + goto exit; + } + + /* pass on to the driver specific version of this function if it is available */ + if (serial->type->ioctl) + retval = serial->type->ioctl(port, file, cmd, arg); + else + retval = -ENOIOCTLCMD; + +exit: + up (&port->sem); + return retval; +} + +static void serial_set_termios (struct tty_struct *tty, struct termios * old) +{ + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + + if (!serial) + return; + + down (&port->sem); + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (!port->open_count) { + dbg("%s - port not open", __FUNCTION__); + goto exit; + } + + /* pass on to the driver specific version of this function if it is available */ + if (serial->type->set_termios) + serial->type->set_termios(port, old); + +exit: + up (&port->sem); +} + +static void serial_break (struct tty_struct *tty, int break_state) +{ + struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + + if (!serial) + return; + + down (&port->sem); + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (!port->open_count) { + dbg("%s - port not open", __FUNCTION__); + goto exit; + } + + /* pass on to the driver specific version of this function if it is available */ + if (serial->type->break_ctl) + serial->type->break_ctl(port, break_state); + +exit: + up (&port->sem); +} +#if 0 +static void serial_shutdown (struct usb_serial *serial) +{ + dbg ("%s", __FUNCTION__); + + if (serial->type->shutdown) + serial->type->shutdown(serial); + else + generic_shutdown(serial); +} +#endif +static int serial_read_proc (char *page, char **start, off_t off, int count, int *eof, void *data) +{ + struct usb_serial *serial; + int length = 0; + int i; + off_t begin = 0; + char tmp[40]; + + dbg("%s", __FUNCTION__); + length += sprintf (page, "usbserinfo:1.0 driver:%s\n", DRIVER_VERSION); + for (i = 0; i < SERIAL_TTY_MINORS && length < PAGE_SIZE; ++i) { + serial = get_serial_by_minor(i); + if (serial == NULL) + continue; + + length += sprintf (page+length, "%d:", i); + if (serial->type->owner) + length += sprintf (page+length, " module:%s", serial->type->owner->name); + length += sprintf (page+length, " name:\"%s\"", serial->type->name); + length += sprintf (page+length, " vendor:%04x product:%04x", serial->vendor, serial->product); + length += sprintf (page+length, " num_ports:%d", serial->num_ports); + length += sprintf (page+length, " port:%d", i - serial->minor + 1); + + usb_make_path(serial->dev, tmp, sizeof(tmp)); + length += sprintf (page+length, " path:%s", tmp); + + length += sprintf (page+length, "\n"); + if ((length + begin) > (off + count)) + goto done; + if ((length + begin) < off) { + begin += length; + length = 0; + } + } + *eof = 1; +done: + if (off >= (length + begin)) + return 0; + *start = page + (off-begin); + return ((count < begin+length-off) ? count : begin+length-off); +} + + +/*-----------------------------------------------------------*/ +static int generic_write (struct usb_serial_port *port, int from_user, const unsigned char *buf, int count) +{ + struct usb_serial *serial = port->serial; + int result; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (count == 0) { + dbg("%s - write request of 0 bytes", __FUNCTION__); + return (0); + } + + /* only do something if we have a bulk out endpoint */ + if (serial->num_bulk_out) { + if (port->write_urb->status == -EINPROGRESS) { + dbg("%s - already writing", __FUNCTION__); + return (0); + } + + count = (count > port->bulk_out_size) ? port->bulk_out_size : count; + + if (from_user) { + if (copy_from_user(port->write_urb->transfer_buffer, buf, count)) + return -EFAULT; + } + else { + memcpy (port->write_urb->transfer_buffer, buf, count); + } + + usb_serial_debug_data (__FILE__, __FUNCTION__, count, port->write_urb->transfer_buffer); + + /* set up our urb */ + usb_fill_bulk_urb (port->write_urb, serial->dev, + usb_sndbulkpipe (serial->dev, + port->bulk_out_endpointAddress), + port->write_urb->transfer_buffer, count, + ((serial->type->write_bulk_callback) ? + serial->type->write_bulk_callback : + generic_write_bulk_callback), port); + + /* send the data out the bulk port */ + result = usb_submit_urb(port->write_urb); + if (result) + err("%s - failed submitting write urb, error %d", __FUNCTION__, result); + else + result = count; + + return result; + } + + /* no bulk out, so return 0 bytes written */ + return (0); +} + +static int generic_write_room (struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + int room = 0; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (serial->num_bulk_out) { + if (port->write_urb->status != -EINPROGRESS) + room = port->bulk_out_size; + } + + dbg("%s - returns %d", __FUNCTION__, room); + return (room); +} + +static int generic_chars_in_buffer (struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + int chars = 0; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (serial->num_bulk_out) { + if (port->write_urb->status == -EINPROGRESS) + chars = port->write_urb->transfer_buffer_length; + } + + dbg("%s - returns %d", __FUNCTION__, chars); + return (chars); +} +#if 0 +static void generic_shutdown (struct usb_serial *serial) +{ + int i; + + dbg("%s", __FUNCTION__); + + /* stop reads and writes on all ports */ + for (i=0; i < serial->num_ports; ++i) { + generic_cleanup (&serial->port[i]); + } +} +static void generic_cleanup (struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (serial->dev) { + /* shutdown any bulk reads that might be going on */ + if (serial->num_bulk_out) + usb_unlink_urb (port->write_urb); + if (serial->num_bulk_in) + usb_unlink_urb (port->read_urb); + } +} +#endif +/*----------------------------------------------------------*/ +static void generic_write_bulk_callback (struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (!serial) { + dbg("%s - bad serial pointer, exiting", __FUNCTION__); + return; + } + + if (urb->status) { + dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + return; + } + + queue_task(&port->tqueue, &tq_immediate); + mark_bh(IMMEDIATE_BH); + + return; +} + +static struct usb_serial *get_free_serial (int num_ports, int *minor) +{ + struct usb_serial *serial = NULL; + int i, j; + int good_spot; + + dbg("%s %d", __FUNCTION__, num_ports); + + *minor = 0; + for (i = 0; i < SERIAL_TTY_MINORS; ++i) { + if (serial_table[i]) + continue; + + good_spot = 1; + for (j = 1; j <= num_ports-1; ++j) + if (serial_table[i+j]) + good_spot = 0; + if (good_spot == 0) + continue; + + if (!(serial = kmalloc(sizeof(struct usb_serial), GFP_KERNEL))) { + err("%s - Out of memory", __FUNCTION__); + return NULL; + } + memset(serial, 0, sizeof(struct usb_serial)); + serial->magic = USB_SERIAL_MAGIC; + serial_table[i] = serial; + *minor = i; + dbg("%s - minor base = %d", __FUNCTION__, *minor); + for (i = *minor+1; (i < (*minor + num_ports)) && (i < SERIAL_TTY_MINORS); ++i) + serial_table[i] = serial; + return serial; + } + return NULL; +} + +static void return_serial (struct usb_serial *serial) +{ + int i; + + dbg("%s", __FUNCTION__); + + if (serial == NULL) + return; + + for (i = 0; i < serial->num_ports; ++i) { + serial_table[serial->minor + i] = NULL; + } + + return; +} + +static void port_softint(void *private) +{ + struct usb_serial_port *port = (struct usb_serial_port *)private; + struct usb_serial *serial = get_usb_serial (port, __FUNCTION__); + struct tty_struct *tty; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (!serial) + return; + + tty = port->tty; + if (!tty) + return; + + if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) && tty->ldisc.write_wakeup) { + dbg("%s - write wakeup call.", __FUNCTION__); + (tty->ldisc.write_wakeup)(tty); + } + + wake_up_interruptible(&tty->write_wait); +} + + +static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum, + const struct usb_device_id *id) +{ + struct usb_serial *serial = NULL; + struct usb_serial_port *port; + struct usb_interface *interface; + struct usb_interface_descriptor *iface_desc; + struct usb_endpoint_descriptor *endpoint; + struct usb_endpoint_descriptor *interrupt_in_endpoint[MAX_NUM_PORTS]; + struct usb_endpoint_descriptor *bulk_in_endpoint[MAX_NUM_PORTS]; + struct usb_endpoint_descriptor *bulk_out_endpoint[MAX_NUM_PORTS]; + struct usb_serial_device_type *type = NULL; + struct list_head *tmp; + int found; + int minor; + int buffer_size; + int i; + int num_interrupt_in = 0; + int num_bulk_in = 0; + int num_bulk_out = 0; + int num_ports; + int max_endpoints; + const struct usb_device_id *id_pattern = NULL; + + /* loop through our list of known serial converters, and see if this + device matches. */ + found = 0; + interface = &dev->actconfig->interface[ifnum]; + list_for_each (tmp, &usb_serial_driver_list) { + type = list_entry(tmp, struct usb_serial_device_type, driver_list); + id_pattern = usb_match_id(dev, interface, type->id_table); + if (id_pattern != NULL) { + dbg("descriptor matches"); + found = 1; + break; + } + } + if (!found) { + /* no match */ + dbg("none matched"); + return(NULL); + } + /* descriptor matches, let's find the endpoints needed */ + /* check out the endpoints */ + iface_desc = &interface->altsetting[0]; + for (i = 0; i < iface_desc->bNumEndpoints; ++i) { + endpoint = &iface_desc->endpoint[i]; + + if ((endpoint->bEndpointAddress & 0x80) && + ((endpoint->bmAttributes & 3) == 0x02)) { + /* we found a bulk in endpoint */ + dbg("found bulk in"); + bulk_in_endpoint[num_bulk_in] = endpoint; + ++num_bulk_in; + } + + if (((endpoint->bEndpointAddress & 0x80) == 0x00) && + ((endpoint->bmAttributes & 3) == 0x02)) { + /* we found a bulk out endpoint */ + dbg("found bulk out"); + bulk_out_endpoint[num_bulk_out] = endpoint; + ++num_bulk_out; + } + + if ((endpoint->bEndpointAddress & 0x80) && + ((endpoint->bmAttributes & 3) == 0x03)) { + /* we found a interrupt in endpoint */ + dbg("found interrupt in"); + interrupt_in_endpoint[num_interrupt_in] = endpoint; + ++num_interrupt_in; + } + } + +#if defined(CONFIG_USB_SERIAL_PL2303) || defined(CONFIG_USB_SERIAL_PL2303_MODULE) + /* BEGIN HORRIBLE HACK FOR PL2303 */ + /* this is needed due to the looney way its endpoints are set up */ + if (((dev->descriptor.idVendor == PL2303_VENDOR_ID) && + (dev->descriptor.idProduct == PL2303_PRODUCT_ID)) || + ((dev->descriptor.idVendor == ATEN_VENDOR_ID) && + (dev->descriptor.idProduct == ATEN_PRODUCT_ID))) { + if (ifnum == 1) { + /* check out the endpoints of the other interface*/ + interface = &dev->actconfig->interface[ifnum ^ 1]; + iface_desc = &interface->altsetting[0]; + for (i = 0; i < iface_desc->bNumEndpoints; ++i) { + endpoint = &iface_desc->endpoint[i]; + if ((endpoint->bEndpointAddress & 0x80) && + ((endpoint->bmAttributes & 3) == 0x03)) { + /* we found a interrupt in endpoint */ + dbg("found interrupt in for Prolific device on separate interface"); + interrupt_in_endpoint[num_interrupt_in] = endpoint; + ++num_interrupt_in; + } + } + } + + /* Now make sure the PL-2303 is configured correctly. + * If not, give up now and hope this hack will work + * properly during a later invocation of usb_serial_probe + */ + if (num_bulk_in == 0 || num_bulk_out == 0) { + info("PL-2303 hack: descriptors matched but endpoints did not"); + return NULL; + } + } + /* END HORRIBLE HACK FOR PL2303 */ +#endif + + /* found all that we need */ + info("%s converter detected", type->name); + +#ifdef CONFIG_USB_SERIAL_SIERRAWIRELESS + if (type == &sierra_driver) { + num_ports = num_bulk_out; + if (num_ports == 0) { + err("Sierra 3G device with no bulk out, not allowed."); + return NULL; + } + } else +#endif + num_ports = type->num_ports; + + serial = get_free_serial (num_ports, &minor); + if (serial == NULL) { + err("No more free serial devices"); + return NULL; + } + + serial->dev = dev; + serial->type = type; + serial->interface = interface; + serial->minor = minor; + serial->num_ports = num_ports; + serial->num_bulk_in = num_bulk_in; + serial->num_bulk_out = num_bulk_out; + serial->num_interrupt_in = num_interrupt_in; + serial->vendor = dev->descriptor.idVendor; + serial->product = dev->descriptor.idProduct; + + /* set up the endpoint information */ + for (i = 0; i < num_bulk_in; ++i) { + endpoint = bulk_in_endpoint[i]; + port = &serial->port[i]; + port->read_urb = usb_alloc_urb (0); + if (!port->read_urb) { + err("No free urbs available"); + goto probe_error; + } +//Amin marked buffer_size = endpoint->wMaxPacketSize; +// ===> 20060310 Amin modify for improve EVDO and HSDPA Card + buffer_size = 2048; + printk("KERNEL DEBUG => USBSERIAL.O buffer_size = 2048\n"); +// <=== 20060310 Amin modify for improve EVDO and HSDPA Card + port->bulk_in_endpointAddress = endpoint->bEndpointAddress; + port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL); + if (!port->bulk_in_buffer) { + err("Couldn't allocate bulk_in_buffer"); + goto probe_error; + } + usb_fill_bulk_urb (port->read_urb, dev, + usb_rcvbulkpipe (dev, + endpoint->bEndpointAddress), + port->bulk_in_buffer, buffer_size, + ((serial->type->read_bulk_callback) ? + serial->type->read_bulk_callback : + sw_usb_serial_generic_read_bulk_callback), + port); + } + + for (i = 0; i < num_bulk_out; ++i) { + endpoint = bulk_out_endpoint[i]; + port = &serial->port[i]; + port->write_urb = usb_alloc_urb(0); + if (!port->write_urb) { + err("No free urbs available"); + goto probe_error; + } + buffer_size = endpoint->wMaxPacketSize; + port->bulk_out_size = buffer_size; + port->bulk_out_endpointAddress = endpoint->bEndpointAddress; + port->bulk_out_buffer = kmalloc (buffer_size, GFP_KERNEL); + if (!port->bulk_out_buffer) { + err("Couldn't allocate bulk_out_buffer"); + goto probe_error; + } + usb_fill_bulk_urb (port->write_urb, dev, + usb_sndbulkpipe (dev, + endpoint->bEndpointAddress), + port->bulk_out_buffer, buffer_size, + ((serial->type->write_bulk_callback) ? + serial->type->write_bulk_callback : + generic_write_bulk_callback), + port); + } + + for (i = 0; i < num_interrupt_in; ++i) { + endpoint = interrupt_in_endpoint[i]; + port = &serial->port[i]; + port->interrupt_in_urb = usb_alloc_urb(0); + if (!port->interrupt_in_urb) { + err("No free urbs available"); + goto probe_error; + } + buffer_size = endpoint->wMaxPacketSize; + port->interrupt_in_endpointAddress = endpoint->bEndpointAddress; + port->interrupt_in_buffer = kmalloc (buffer_size, GFP_KERNEL); + if (!port->interrupt_in_buffer) { + err("Couldn't allocate interrupt_in_buffer"); + goto probe_error; + } + usb_fill_int_urb (port->interrupt_in_urb, dev, + usb_rcvintpipe (dev, + endpoint->bEndpointAddress), + port->interrupt_in_buffer, buffer_size, + serial->type->read_int_callback, port, + endpoint->bInterval); + } + + /* initialize some parts of the port structures */ + /* we don't use num_ports here cauz some devices have more endpoint pairs than ports */ + max_endpoints = max(num_bulk_in, num_bulk_out); + max_endpoints = max(max_endpoints, num_interrupt_in); + max_endpoints = max(max_endpoints, (int)serial->num_ports); + dbg("%s - setting up %d port structures for this device", __FUNCTION__, max_endpoints); + for (i = 0; i < max_endpoints; ++i) { + port = &serial->port[i]; + port->number = i + serial->minor; + port->serial = serial; + port->magic = USB_SERIAL_PORT_MAGIC; + port->tqueue.routine = port_softint; + port->tqueue.data = port; + init_MUTEX (&port->sem); + } + + /* if this device type has a startup function, call it */ + if (type->startup) { + i = type->startup (serial); + if (i < 0) + goto probe_error; + if (i > 0) + return serial; + } + + /* initialize the devfs nodes for this device and let the user know what ports we are bound to */ + for (i = 0; i < serial->num_ports; ++i) { + tty_register_devfs (&serial_tty_driver, 0, serial->port[i].number); + info("%s converter now attached to ttyUSB%d (or usb/tts/%d for devfs)", + type->name, serial->port[i].number, serial->port[i].number); + } + + return serial; /* success */ + + +probe_error: + for (i = 0; i < num_bulk_in; ++i) { + port = &serial->port[i]; + if (port->read_urb) + usb_free_urb (port->read_urb); + if (port->bulk_in_buffer) + kfree (port->bulk_in_buffer); + } + for (i = 0; i < num_bulk_out; ++i) { + port = &serial->port[i]; + if (port->write_urb) + usb_free_urb (port->write_urb); + if (port->bulk_out_buffer) + kfree (port->bulk_out_buffer); + } + for (i = 0; i < num_interrupt_in; ++i) { + port = &serial->port[i]; + if (port->interrupt_in_urb) + usb_free_urb (port->interrupt_in_urb); + if (port->interrupt_in_buffer) + kfree (port->interrupt_in_buffer); + } + + /* return the minor range that this device had */ + return_serial (serial); + + /* free up any memory that we allocated */ + kfree (serial); + return NULL; +} + +static void usb_serial_disconnect(struct usb_device *dev, void *ptr) +{ + struct usb_serial *serial = (struct usb_serial *) ptr; + struct usb_serial_port *port; + int i; + + dbg ("%s", __FUNCTION__); + if (serial) { + /* fail all future close/read/write/ioctl/etc calls */ + for (i = 0; i < serial->num_ports; ++i) { + port = &serial->port[i]; + down (&port->sem); + if (port->tty != NULL) { + while (port->open_count > 0) { + //__serial_close(port, NULL); + sw_usb_serial_generic_close(port,NULL); + } + port->tty->driver_data = NULL; + } + up (&port->sem); + } + + serial->dev = NULL; + //serial_shutdown (serial); + sw_usb_serial_generic_shutdown(serial); + + for (i = 0; i < serial->num_ports; ++i) + serial->port[i].open_count = 0; + + for (i = 0; i < serial->num_bulk_in; ++i) { + port = &serial->port[i]; + if (port->read_urb) { + usb_unlink_urb (port->read_urb); + usb_free_urb (port->read_urb); + } + if (port->bulk_in_buffer) + kfree (port->bulk_in_buffer); + } + for (i = 0; i < serial->num_bulk_out; ++i) { + port = &serial->port[i]; + if (port->write_urb) { + usb_unlink_urb (port->write_urb); + usb_free_urb (port->write_urb); + } + if (port->bulk_out_buffer) + kfree (port->bulk_out_buffer); + } + for (i = 0; i < serial->num_interrupt_in; ++i) { + port = &serial->port[i]; + if (port->interrupt_in_urb) { + usb_unlink_urb (port->interrupt_in_urb); + usb_free_urb (port->interrupt_in_urb); + } + if (port->interrupt_in_buffer) + kfree (port->interrupt_in_buffer); + } + + for (i = 0; i < serial->num_ports; ++i) { + tty_unregister_devfs (&serial_tty_driver, serial->port[i].number); + info("%s converter now disconnected from ttyUSB%d", serial->type->name, serial->port[i].number); + } + + /* return the minor range that this device had */ + return_serial (serial); + + /* free up any memory that we allocated */ + kfree (serial); + + } else { + info("device disconnected"); + } + +} + +#if 0 +static int sw_attach(struct usb_serial *serial) +{ + struct usb_device *hdev = serial->dev; + int rc; + + dbg("%s - serial(0x%p)", __FUNCTION__, serial); + + rc = usb_control_msg( + hdev, + usb_sndctrlpipe(hdev, 0), + USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE, /* bRequest */ + USB_TYPE_VENDOR|USB_RECIP_DEVICE, /* bmRequestType */ + USB_DEVICE_POWER_STATE_D0, /* wValue */ + 0, /* wIndex */ + NULL, /* Data */ + 0, /* wLength */ + 1000); /* Timeout */ + + err("%s - rc(%d)", __FUNCTION__, rc); + return rc; +} +#endif +//void sw_usb_serial_generic_read_bulk_callback (struct urb *urb, struct pt_regs *regs) +static void sw_usb_serial_generic_read_bulk_callback (struct urb *urb) +{ + struct usb_serial_port *port = (struct usb_serial_port *)urb->context; + struct usb_serial *serial = port->serial; + struct tty_struct *tty; + unsigned char *data = urb->transfer_buffer; + int result; + int i; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (urb->status) { + dbg("%s - nonzero read bulk status received: %d", __FUNCTION__, urb->status); + return; + } + + //usb_serial_dbg_data(__FILE__, __FUNCTION__, urb->actual_length, data); + + tty = port->tty; + if (tty && urb->actual_length) { + #if 0 + tty_buffer_request_room(tty, urb->actual_length); + tty_insert_flip_string(tty, data, urb->actual_length); + tty_flip_buffer_push(tty); + #endif + #if 1 + for (i = 0; i < urb->actual_length ; ++i) { + /* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */ + if(tty->flip.count >= TTY_FLIPBUF_SIZE) { + tty_flip_buffer_push(tty); + } + /* this doesn't actually push the data through unless tty->low_latency is set */ + tty_insert_flip_char(tty, data[i], 0); + } + tty_flip_buffer_push(tty); + #endif + + } + else + dbg("%s: empty read urb received", __FUNCTION__); + + /* Continue trying to always read */ + usb_fill_bulk_urb (port->read_urb, serial->dev, + usb_rcvbulkpipe (serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + ((serial->type->read_bulk_callback) ? + serial->type->read_bulk_callback : + sw_usb_serial_generic_read_bulk_callback), port); + result = usb_submit_urb(port->read_urb); + //result = usb_submit_urb(port->read_urb, GFP_ATOMIC); //for kernel 2.6 + if (result) + dbg("%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); +} +#if 1 +static int generic_open (struct usb_serial_port *port, struct file *filp) +{ + struct usb_serial *serial = port->serial; + int result = 0; + + dbg("%s - port %d", __FUNCTION__, port->number); + + /* force low_latency on so that our tty_push actually forces the data through, + otherwise it is scheduled, and with high data rates (like with OHCI) data + can get lost. */ + if (port->tty) + port->tty->low_latency = 1; + + /* if we have a bulk interrupt, start reading from it */ + if (serial->num_bulk_in) { + /* Start reading from the device */ + usb_fill_bulk_urb (port->read_urb, serial->dev, + usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + ((serial->type->read_bulk_callback) ? + serial->type->read_bulk_callback : + sw_usb_serial_generic_read_bulk_callback), + port); + result = usb_submit_urb(port->read_urb); //, GFP_KERNEL); + if (result) + //dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); + dbg("%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); + + } + + return result; +} +#endif +int sw_usb_serial_generic_open (struct usb_serial_port *port, struct file *filp) +{ + int rc; + struct usb_serial *serial = port->serial; + struct usb_device *hdev = serial->dev; + + dbg("%s - port %d", __FUNCTION__, port->number); + + rc = generic_open(port, filp); + err("%s - rc(%d)", __FUNCTION__, rc); + + if(0 == rc) + { + rc = usb_control_msg( + hdev, + usb_sndctrlpipe(hdev, 0), + SET_CONTROL_LINE_STATE, /* bRequest */ + USB_TYPE_CLASS|USB_RECIP_INTERFACE, /* bmRequestType */ + ACM_CTRL_DTR|ACM_CTRL_RTS, /* wValue */ + 0, /* wIndex */ + NULL, /* Data */ + 0, /* wLength */ + 1000); /* Timeout */ + err("%s - usb_control_msg: rc(%d)", __FUNCTION__, rc); + } + + return rc; +} + +static void generic_cleanup (struct usb_serial_port *port) +{ + struct usb_serial *serial = port->serial; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (serial->dev) { + /* shutdown any bulk reads that might be going on */ + if (serial->num_bulk_out) + usb_unlink_urb(port->write_urb); + //usb_kill_urb(port->write_urb); + if (serial->num_bulk_in) + usb_unlink_urb(port->read_urb); + //usb_kill_urb(port->read_urb); + } +} + +static void sw_usb_serial_generic_close (struct usb_serial_port *port, struct file * filp) +{ + int rc; + struct usb_serial *serial = port->serial; + struct usb_device *hdev = serial->dev; + + dbg("%s - port %d", __FUNCTION__, port->number); + + rc = usb_control_msg( + hdev, + usb_sndctrlpipe(hdev, 0), + SET_CONTROL_LINE_STATE, /* bRequest */ + USB_TYPE_CLASS|USB_RECIP_INTERFACE, /* bmRequestType */ + 0, /* wValue */ + 0, /* wIndex */ + NULL, /* Data */ + 0, /* wLength */ + 1000); /* Timeout */ + err("%s - rc(%d)", __FUNCTION__, rc); + + generic_cleanup (port); +} + +static void sw_usb_serial_generic_shutdown(struct usb_serial *serial) +{ + int i, rc; + struct usb_device *hdev = serial->dev; + + dbg("%s serial(0x%p)", __FUNCTION__, serial); + + if(hdev) + { + rc = usb_control_msg( + hdev, + usb_sndctrlpipe(hdev, 0), + USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE, /* bRequest */ + USB_TYPE_VENDOR|USB_RECIP_DEVICE, /* bmRequestType */ + USB_DEVICE_POWER_STATE_D3, /* wValue */ + 0, /* wIndex */ + NULL, /* Data */ + 0, /* wLength */ + 1000); /* Timeout */ + err("%s - rc(%d)", __FUNCTION__, rc); + } + + /* stop reads and writes on all ports */ + for (i=0; i < serial->num_ports; ++i) { + generic_cleanup(&serial->port[i]); + } +} +int usb_serial_register(struct usb_serial_device_type *new_device) +{ + /* Add this device to our list of devices */ + list_add(&new_device->driver_list, &usb_serial_driver_list); + + info ("USB Serial support registered for %s", new_device->name); + + usb_scan_devices(); + + return 0; +} + + +void usb_serial_deregister(struct usb_serial_device_type *device) +{ + struct usb_serial *serial; + int i; + + info("USB Serial deregistering driver %s", device->name); + + /* clear out the serial_table if the device is attached to a port */ + for(i = 0; i < SERIAL_TTY_MINORS; ++i) { + serial = serial_table[i]; + if ((serial != NULL) && (serial->type == device)) { + usb_driver_release_interface (&sierra_driver, serial->interface); + usb_serial_disconnect (NULL, serial); + } + } + + list_del(&device->driver_list); +} + +static int __init sierra_init(void) +{ + int retval; + int i; + + /* Initalize our global data */ + for (i = 0; i < SERIAL_TTY_MINORS; ++i) { + serial_table[i] = NULL; + } + + /* register the tty driver */ + serial_tty_driver.init_termios = tty_std_termios; + serial_tty_driver.init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; + if (tty_register_driver (&serial_tty_driver)) { + err("%s - failed to register tty driver", __FUNCTION__); + return -1; + } + + retval = usb_serial_register(&sierra_device); + if (retval) + { + tty_unregister_driver(&serial_tty_driver); + printk("%s return usb_serial_register. retval=[%d].\n",__FUNCTION__, retval); + return retval; + } + retval = usb_register(&sierra_driver); + if (retval){ + usb_serial_deregister(&sierra_device); + tty_unregister_driver(&serial_tty_driver); + err("usb_register failed for the Sierra 3G USB-Serial driver. Error number %d\n", retval); + return -1; + } + + return retval; +} + +static void __exit sierra_exit(void) +{ + usb_deregister(&sierra_driver); + usb_serial_deregister(&sierra_device); +} + +module_init(sierra_init); +module_exit(sierra_exit); +MODULE_LICENSE("GPL"); --- /dev/null +++ b/drivers/usb/serial/sierra.h @@ -0,0 +1,32 @@ +/* + * Sierra Wireless CDMA Wireless Serial USB drive + * + * Current Copy modified by: Kevin Lloyd + * Original Copy written by: 2005 Greg Kroah-Hartman suse.de> + * + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * Version history: + Version 1.03 (Lloyd): + Included support for DTR control and enhanced buffering (should help + speed). + */ + +#define USB_VENDER_REQUEST_SET_DEVICE_POWER_STATE 0 + +#define USB_DEVICE_POWER_STATE_D0 0x0000 +#define USB_DEVICE_POWER_STATE_D1 0x0001 +#define USB_DEVICE_POWER_STATE_D2 0x0002 +#define USB_DEVICE_POWER_STATE_D3 0x0003 + +#define SET_CONTROL_LINE_STATE 0x22 +/* + * Output control lines. + */ + +#define ACM_CTRL_DTR 0x01 +#define ACM_CTRL_RTS 0x02 +