mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 12:21:37 +00:00
bf8773c6ea
The disconnect callback is set to the generic implementation by usb-serial core if NULL. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
654 lines
16 KiB
C
654 lines
16 KiB
C
/*
|
|
* usb-serial driver for Quatech SSU-100
|
|
*
|
|
* based on ftdi_sio.c and the original serqt_usb.c from Quatech
|
|
*
|
|
*/
|
|
|
|
#include <linux/errno.h>
|
|
#include <linux/init.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/tty_driver.h>
|
|
#include <linux/tty_flip.h>
|
|
#include <linux/module.h>
|
|
#include <linux/serial.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/usb/serial.h>
|
|
#include <linux/serial_reg.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
#define QT_OPEN_CLOSE_CHANNEL 0xca
|
|
#define QT_SET_GET_DEVICE 0xc2
|
|
#define QT_SET_GET_REGISTER 0xc0
|
|
#define QT_GET_SET_PREBUF_TRIG_LVL 0xcc
|
|
#define QT_SET_ATF 0xcd
|
|
#define QT_GET_SET_UART 0xc1
|
|
#define QT_TRANSFER_IN 0xc0
|
|
#define QT_HW_FLOW_CONTROL_MASK 0xc5
|
|
#define QT_SW_FLOW_CONTROL_MASK 0xc6
|
|
|
|
#define SERIAL_MSR_MASK 0xf0
|
|
|
|
#define SERIAL_CRTSCTS ((UART_MCR_RTS << 8) | UART_MSR_CTS)
|
|
|
|
#define SERIAL_EVEN_PARITY (UART_LCR_PARITY | UART_LCR_EPAR)
|
|
|
|
#define MAX_BAUD_RATE 460800
|
|
|
|
#define ATC_DISABLED 0x00
|
|
#define DUPMODE_BITS 0xc0
|
|
#define RR_BITS 0x03
|
|
#define LOOPMODE_BITS 0x41
|
|
#define RS232_MODE 0x00
|
|
#define RTSCTS_TO_CONNECTOR 0x40
|
|
#define CLKS_X4 0x02
|
|
#define FULLPWRBIT 0x00000080
|
|
#define NEXT_BOARD_POWER_BIT 0x00000004
|
|
|
|
#define DRIVER_DESC "Quatech SSU-100 USB to Serial Driver"
|
|
|
|
#define USB_VENDOR_ID_QUATECH 0x061d /* Quatech VID */
|
|
#define QUATECH_SSU100 0xC020 /* SSU100 */
|
|
|
|
static const struct usb_device_id id_table[] = {
|
|
{USB_DEVICE(USB_VENDOR_ID_QUATECH, QUATECH_SSU100)},
|
|
{} /* Terminating entry */
|
|
};
|
|
MODULE_DEVICE_TABLE(usb, id_table);
|
|
|
|
struct ssu100_port_private {
|
|
spinlock_t status_lock;
|
|
u8 shadowLSR;
|
|
u8 shadowMSR;
|
|
struct async_icount icount;
|
|
};
|
|
|
|
static inline int ssu100_control_msg(struct usb_device *dev,
|
|
u8 request, u16 data, u16 index)
|
|
{
|
|
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
|
request, 0x40, data, index,
|
|
NULL, 0, 300);
|
|
}
|
|
|
|
static inline int ssu100_setdevice(struct usb_device *dev, u8 *data)
|
|
{
|
|
u16 x = ((u16)(data[1] << 8) | (u16)(data[0]));
|
|
|
|
return ssu100_control_msg(dev, QT_SET_GET_DEVICE, x, 0);
|
|
}
|
|
|
|
|
|
static inline int ssu100_getdevice(struct usb_device *dev, u8 *data)
|
|
{
|
|
return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
|
|
QT_SET_GET_DEVICE, 0xc0, 0, 0,
|
|
data, 3, 300);
|
|
}
|
|
|
|
static inline int ssu100_getregister(struct usb_device *dev,
|
|
unsigned short uart,
|
|
unsigned short reg,
|
|
u8 *data)
|
|
{
|
|
return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
|
|
QT_SET_GET_REGISTER, 0xc0, reg,
|
|
uart, data, sizeof(*data), 300);
|
|
|
|
}
|
|
|
|
|
|
static inline int ssu100_setregister(struct usb_device *dev,
|
|
unsigned short uart,
|
|
unsigned short reg,
|
|
u16 data)
|
|
{
|
|
u16 value = (data << 8) | reg;
|
|
|
|
return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
|
|
QT_SET_GET_REGISTER, 0x40, value, uart,
|
|
NULL, 0, 300);
|
|
|
|
}
|
|
|
|
#define set_mctrl(dev, set) update_mctrl((dev), (set), 0)
|
|
#define clear_mctrl(dev, clear) update_mctrl((dev), 0, (clear))
|
|
|
|
/* these do not deal with device that have more than 1 port */
|
|
static inline int update_mctrl(struct usb_device *dev, unsigned int set,
|
|
unsigned int clear)
|
|
{
|
|
unsigned urb_value;
|
|
int result;
|
|
|
|
if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) {
|
|
dev_dbg(&dev->dev, "%s - DTR|RTS not being set|cleared\n", __func__);
|
|
return 0; /* no change */
|
|
}
|
|
|
|
clear &= ~set; /* 'set' takes precedence over 'clear' */
|
|
urb_value = 0;
|
|
if (set & TIOCM_DTR)
|
|
urb_value |= UART_MCR_DTR;
|
|
if (set & TIOCM_RTS)
|
|
urb_value |= UART_MCR_RTS;
|
|
|
|
result = ssu100_setregister(dev, 0, UART_MCR, urb_value);
|
|
if (result < 0)
|
|
dev_dbg(&dev->dev, "%s Error from MODEM_CTRL urb\n", __func__);
|
|
|
|
return result;
|
|
}
|
|
|
|
static int ssu100_initdevice(struct usb_device *dev)
|
|
{
|
|
u8 *data;
|
|
int result = 0;
|
|
|
|
data = kzalloc(3, GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
result = ssu100_getdevice(dev, data);
|
|
if (result < 0) {
|
|
dev_dbg(&dev->dev, "%s - get_device failed %i\n", __func__, result);
|
|
goto out;
|
|
}
|
|
|
|
data[1] &= ~FULLPWRBIT;
|
|
|
|
result = ssu100_setdevice(dev, data);
|
|
if (result < 0) {
|
|
dev_dbg(&dev->dev, "%s - setdevice failed %i\n", __func__, result);
|
|
goto out;
|
|
}
|
|
|
|
result = ssu100_control_msg(dev, QT_GET_SET_PREBUF_TRIG_LVL, 128, 0);
|
|
if (result < 0) {
|
|
dev_dbg(&dev->dev, "%s - set prebuffer level failed %i\n", __func__, result);
|
|
goto out;
|
|
}
|
|
|
|
result = ssu100_control_msg(dev, QT_SET_ATF, ATC_DISABLED, 0);
|
|
if (result < 0) {
|
|
dev_dbg(&dev->dev, "%s - set ATFprebuffer level failed %i\n", __func__, result);
|
|
goto out;
|
|
}
|
|
|
|
result = ssu100_getdevice(dev, data);
|
|
if (result < 0) {
|
|
dev_dbg(&dev->dev, "%s - get_device failed %i\n", __func__, result);
|
|
goto out;
|
|
}
|
|
|
|
data[0] &= ~(RR_BITS | DUPMODE_BITS);
|
|
data[0] |= CLKS_X4;
|
|
data[1] &= ~(LOOPMODE_BITS);
|
|
data[1] |= RS232_MODE;
|
|
|
|
result = ssu100_setdevice(dev, data);
|
|
if (result < 0) {
|
|
dev_dbg(&dev->dev, "%s - setdevice failed %i\n", __func__, result);
|
|
goto out;
|
|
}
|
|
|
|
out: kfree(data);
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
static void ssu100_set_termios(struct tty_struct *tty,
|
|
struct usb_serial_port *port,
|
|
struct ktermios *old_termios)
|
|
{
|
|
struct usb_device *dev = port->serial->dev;
|
|
struct ktermios *termios = &tty->termios;
|
|
u16 baud, divisor, remainder;
|
|
unsigned int cflag = termios->c_cflag;
|
|
u16 urb_value = 0; /* will hold the new flags */
|
|
int result;
|
|
|
|
if (cflag & PARENB) {
|
|
if (cflag & PARODD)
|
|
urb_value |= UART_LCR_PARITY;
|
|
else
|
|
urb_value |= SERIAL_EVEN_PARITY;
|
|
}
|
|
|
|
switch (cflag & CSIZE) {
|
|
case CS5:
|
|
urb_value |= UART_LCR_WLEN5;
|
|
break;
|
|
case CS6:
|
|
urb_value |= UART_LCR_WLEN6;
|
|
break;
|
|
case CS7:
|
|
urb_value |= UART_LCR_WLEN7;
|
|
break;
|
|
default:
|
|
case CS8:
|
|
urb_value |= UART_LCR_WLEN8;
|
|
break;
|
|
}
|
|
|
|
baud = tty_get_baud_rate(tty);
|
|
if (!baud)
|
|
baud = 9600;
|
|
|
|
dev_dbg(&port->dev, "%s - got baud = %d\n", __func__, baud);
|
|
|
|
|
|
divisor = MAX_BAUD_RATE / baud;
|
|
remainder = MAX_BAUD_RATE % baud;
|
|
if (((remainder * 2) >= baud) && (baud != 110))
|
|
divisor++;
|
|
|
|
urb_value = urb_value << 8;
|
|
|
|
result = ssu100_control_msg(dev, QT_GET_SET_UART, divisor, urb_value);
|
|
if (result < 0)
|
|
dev_dbg(&port->dev, "%s - set uart failed\n", __func__);
|
|
|
|
if (cflag & CRTSCTS)
|
|
result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK,
|
|
SERIAL_CRTSCTS, 0);
|
|
else
|
|
result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK,
|
|
0, 0);
|
|
if (result < 0)
|
|
dev_dbg(&port->dev, "%s - set HW flow control failed\n", __func__);
|
|
|
|
if (I_IXOFF(tty) || I_IXON(tty)) {
|
|
u16 x = ((u16)(START_CHAR(tty) << 8) | (u16)(STOP_CHAR(tty)));
|
|
|
|
result = ssu100_control_msg(dev, QT_SW_FLOW_CONTROL_MASK,
|
|
x, 0);
|
|
} else
|
|
result = ssu100_control_msg(dev, QT_SW_FLOW_CONTROL_MASK,
|
|
0, 0);
|
|
|
|
if (result < 0)
|
|
dev_dbg(&port->dev, "%s - set SW flow control failed\n", __func__);
|
|
|
|
}
|
|
|
|
|
|
static int ssu100_open(struct tty_struct *tty, struct usb_serial_port *port)
|
|
{
|
|
struct usb_device *dev = port->serial->dev;
|
|
struct ssu100_port_private *priv = usb_get_serial_port_data(port);
|
|
u8 *data;
|
|
int result;
|
|
unsigned long flags;
|
|
|
|
data = kzalloc(2, GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
|
|
QT_OPEN_CLOSE_CHANNEL,
|
|
QT_TRANSFER_IN, 0x01,
|
|
0, data, 2, 300);
|
|
if (result < 0) {
|
|
dev_dbg(&port->dev, "%s - open failed %i\n", __func__, result);
|
|
kfree(data);
|
|
return result;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->status_lock, flags);
|
|
priv->shadowLSR = data[0];
|
|
priv->shadowMSR = data[1];
|
|
spin_unlock_irqrestore(&priv->status_lock, flags);
|
|
|
|
kfree(data);
|
|
|
|
/* set to 9600 */
|
|
result = ssu100_control_msg(dev, QT_GET_SET_UART, 0x30, 0x0300);
|
|
if (result < 0)
|
|
dev_dbg(&port->dev, "%s - set uart failed\n", __func__);
|
|
|
|
if (tty)
|
|
ssu100_set_termios(tty, port, &tty->termios);
|
|
|
|
return usb_serial_generic_open(tty, port);
|
|
}
|
|
|
|
static void ssu100_close(struct usb_serial_port *port)
|
|
{
|
|
usb_serial_generic_close(port);
|
|
}
|
|
|
|
static int get_serial_info(struct usb_serial_port *port,
|
|
struct serial_struct __user *retinfo)
|
|
{
|
|
struct serial_struct tmp;
|
|
|
|
if (!retinfo)
|
|
return -EFAULT;
|
|
|
|
memset(&tmp, 0, sizeof(tmp));
|
|
tmp.line = port->serial->minor;
|
|
tmp.port = 0;
|
|
tmp.irq = 0;
|
|
tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ;
|
|
tmp.xmit_fifo_size = port->bulk_out_size;
|
|
tmp.baud_base = 9600;
|
|
tmp.close_delay = 5*HZ;
|
|
tmp.closing_wait = 30*HZ;
|
|
|
|
if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
|
|
static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
|
|
{
|
|
struct ssu100_port_private *priv = usb_get_serial_port_data(port);
|
|
struct async_icount prev, cur;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&priv->status_lock, flags);
|
|
prev = priv->icount;
|
|
spin_unlock_irqrestore(&priv->status_lock, flags);
|
|
|
|
while (1) {
|
|
wait_event_interruptible(port->delta_msr_wait,
|
|
(port->serial->disconnected ||
|
|
(priv->icount.rng != prev.rng) ||
|
|
(priv->icount.dsr != prev.dsr) ||
|
|
(priv->icount.dcd != prev.dcd) ||
|
|
(priv->icount.cts != prev.cts)));
|
|
|
|
if (signal_pending(current))
|
|
return -ERESTARTSYS;
|
|
|
|
if (port->serial->disconnected)
|
|
return -EIO;
|
|
|
|
spin_lock_irqsave(&priv->status_lock, flags);
|
|
cur = priv->icount;
|
|
spin_unlock_irqrestore(&priv->status_lock, flags);
|
|
|
|
if ((prev.rng == cur.rng) &&
|
|
(prev.dsr == cur.dsr) &&
|
|
(prev.dcd == cur.dcd) &&
|
|
(prev.cts == cur.cts))
|
|
return -EIO;
|
|
|
|
if ((arg & TIOCM_RNG && (prev.rng != cur.rng)) ||
|
|
(arg & TIOCM_DSR && (prev.dsr != cur.dsr)) ||
|
|
(arg & TIOCM_CD && (prev.dcd != cur.dcd)) ||
|
|
(arg & TIOCM_CTS && (prev.cts != cur.cts)))
|
|
return 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int ssu100_get_icount(struct tty_struct *tty,
|
|
struct serial_icounter_struct *icount)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
struct ssu100_port_private *priv = usb_get_serial_port_data(port);
|
|
struct async_icount cnow = priv->icount;
|
|
|
|
icount->cts = cnow.cts;
|
|
icount->dsr = cnow.dsr;
|
|
icount->rng = cnow.rng;
|
|
icount->dcd = cnow.dcd;
|
|
icount->rx = cnow.rx;
|
|
icount->tx = cnow.tx;
|
|
icount->frame = cnow.frame;
|
|
icount->overrun = cnow.overrun;
|
|
icount->parity = cnow.parity;
|
|
icount->brk = cnow.brk;
|
|
icount->buf_overrun = cnow.buf_overrun;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
static int ssu100_ioctl(struct tty_struct *tty,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
|
|
dev_dbg(&port->dev, "%s cmd 0x%04x\n", __func__, cmd);
|
|
|
|
switch (cmd) {
|
|
case TIOCGSERIAL:
|
|
return get_serial_info(port,
|
|
(struct serial_struct __user *) arg);
|
|
|
|
case TIOCMIWAIT:
|
|
return wait_modem_info(port, arg);
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
dev_dbg(&port->dev, "%s arg not supported\n", __func__);
|
|
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
|
|
static int ssu100_attach(struct usb_serial *serial)
|
|
{
|
|
return ssu100_initdevice(serial->dev);
|
|
}
|
|
|
|
static int ssu100_port_probe(struct usb_serial_port *port)
|
|
{
|
|
struct ssu100_port_private *priv;
|
|
|
|
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
spin_lock_init(&priv->status_lock);
|
|
|
|
usb_set_serial_port_data(port, priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ssu100_port_remove(struct usb_serial_port *port)
|
|
{
|
|
struct ssu100_port_private *priv;
|
|
|
|
priv = usb_get_serial_port_data(port);
|
|
kfree(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ssu100_tiocmget(struct tty_struct *tty)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
struct usb_device *dev = port->serial->dev;
|
|
u8 *d;
|
|
int r;
|
|
|
|
d = kzalloc(2, GFP_KERNEL);
|
|
if (!d)
|
|
return -ENOMEM;
|
|
|
|
r = ssu100_getregister(dev, 0, UART_MCR, d);
|
|
if (r < 0)
|
|
goto mget_out;
|
|
|
|
r = ssu100_getregister(dev, 0, UART_MSR, d+1);
|
|
if (r < 0)
|
|
goto mget_out;
|
|
|
|
r = (d[0] & UART_MCR_DTR ? TIOCM_DTR : 0) |
|
|
(d[0] & UART_MCR_RTS ? TIOCM_RTS : 0) |
|
|
(d[1] & UART_MSR_CTS ? TIOCM_CTS : 0) |
|
|
(d[1] & UART_MSR_DCD ? TIOCM_CAR : 0) |
|
|
(d[1] & UART_MSR_RI ? TIOCM_RI : 0) |
|
|
(d[1] & UART_MSR_DSR ? TIOCM_DSR : 0);
|
|
|
|
mget_out:
|
|
kfree(d);
|
|
return r;
|
|
}
|
|
|
|
static int ssu100_tiocmset(struct tty_struct *tty,
|
|
unsigned int set, unsigned int clear)
|
|
{
|
|
struct usb_serial_port *port = tty->driver_data;
|
|
struct usb_device *dev = port->serial->dev;
|
|
|
|
return update_mctrl(dev, set, clear);
|
|
}
|
|
|
|
static void ssu100_dtr_rts(struct usb_serial_port *port, int on)
|
|
{
|
|
struct usb_device *dev = port->serial->dev;
|
|
|
|
/* Disable flow control */
|
|
if (!on) {
|
|
if (ssu100_setregister(dev, 0, UART_MCR, 0) < 0)
|
|
dev_err(&port->dev, "error from flowcontrol urb\n");
|
|
}
|
|
/* drop RTS and DTR */
|
|
if (on)
|
|
set_mctrl(dev, TIOCM_DTR | TIOCM_RTS);
|
|
else
|
|
clear_mctrl(dev, TIOCM_DTR | TIOCM_RTS);
|
|
}
|
|
|
|
static void ssu100_update_msr(struct usb_serial_port *port, u8 msr)
|
|
{
|
|
struct ssu100_port_private *priv = usb_get_serial_port_data(port);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&priv->status_lock, flags);
|
|
priv->shadowMSR = msr;
|
|
spin_unlock_irqrestore(&priv->status_lock, flags);
|
|
|
|
if (msr & UART_MSR_ANY_DELTA) {
|
|
/* update input line counters */
|
|
if (msr & UART_MSR_DCTS)
|
|
priv->icount.cts++;
|
|
if (msr & UART_MSR_DDSR)
|
|
priv->icount.dsr++;
|
|
if (msr & UART_MSR_DDCD)
|
|
priv->icount.dcd++;
|
|
if (msr & UART_MSR_TERI)
|
|
priv->icount.rng++;
|
|
wake_up_interruptible(&port->delta_msr_wait);
|
|
}
|
|
}
|
|
|
|
static void ssu100_update_lsr(struct usb_serial_port *port, u8 lsr,
|
|
char *tty_flag)
|
|
{
|
|
struct ssu100_port_private *priv = usb_get_serial_port_data(port);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&priv->status_lock, flags);
|
|
priv->shadowLSR = lsr;
|
|
spin_unlock_irqrestore(&priv->status_lock, flags);
|
|
|
|
*tty_flag = TTY_NORMAL;
|
|
if (lsr & UART_LSR_BRK_ERROR_BITS) {
|
|
/* we always want to update icount, but we only want to
|
|
* update tty_flag for one case */
|
|
if (lsr & UART_LSR_BI) {
|
|
priv->icount.brk++;
|
|
*tty_flag = TTY_BREAK;
|
|
usb_serial_handle_break(port);
|
|
}
|
|
if (lsr & UART_LSR_PE) {
|
|
priv->icount.parity++;
|
|
if (*tty_flag == TTY_NORMAL)
|
|
*tty_flag = TTY_PARITY;
|
|
}
|
|
if (lsr & UART_LSR_FE) {
|
|
priv->icount.frame++;
|
|
if (*tty_flag == TTY_NORMAL)
|
|
*tty_flag = TTY_FRAME;
|
|
}
|
|
if (lsr & UART_LSR_OE){
|
|
priv->icount.overrun++;
|
|
if (*tty_flag == TTY_NORMAL)
|
|
*tty_flag = TTY_OVERRUN;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
static void ssu100_process_read_urb(struct urb *urb)
|
|
{
|
|
struct usb_serial_port *port = urb->context;
|
|
char *packet = (char *)urb->transfer_buffer;
|
|
char flag = TTY_NORMAL;
|
|
u32 len = urb->actual_length;
|
|
int i;
|
|
char *ch;
|
|
|
|
if ((len >= 4) &&
|
|
(packet[0] == 0x1b) && (packet[1] == 0x1b) &&
|
|
((packet[2] == 0x00) || (packet[2] == 0x01))) {
|
|
if (packet[2] == 0x00) {
|
|
ssu100_update_lsr(port, packet[3], &flag);
|
|
if (flag == TTY_OVERRUN)
|
|
tty_insert_flip_char(&port->port, 0,
|
|
TTY_OVERRUN);
|
|
}
|
|
if (packet[2] == 0x01)
|
|
ssu100_update_msr(port, packet[3]);
|
|
|
|
len -= 4;
|
|
ch = packet + 4;
|
|
} else
|
|
ch = packet;
|
|
|
|
if (!len)
|
|
return; /* status only */
|
|
|
|
if (port->port.console && port->sysrq) {
|
|
for (i = 0; i < len; i++, ch++) {
|
|
if (!usb_serial_handle_sysrq_char(port, *ch))
|
|
tty_insert_flip_char(&port->port, *ch, flag);
|
|
}
|
|
} else
|
|
tty_insert_flip_string_fixed_flag(&port->port, ch, flag, len);
|
|
|
|
tty_flip_buffer_push(&port->port);
|
|
}
|
|
|
|
static struct usb_serial_driver ssu100_device = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "ssu100",
|
|
},
|
|
.description = DRIVER_DESC,
|
|
.id_table = id_table,
|
|
.num_ports = 1,
|
|
.open = ssu100_open,
|
|
.close = ssu100_close,
|
|
.attach = ssu100_attach,
|
|
.port_probe = ssu100_port_probe,
|
|
.port_remove = ssu100_port_remove,
|
|
.dtr_rts = ssu100_dtr_rts,
|
|
.process_read_urb = ssu100_process_read_urb,
|
|
.tiocmget = ssu100_tiocmget,
|
|
.tiocmset = ssu100_tiocmset,
|
|
.get_icount = ssu100_get_icount,
|
|
.ioctl = ssu100_ioctl,
|
|
.set_termios = ssu100_set_termios,
|
|
};
|
|
|
|
static struct usb_serial_driver * const serial_drivers[] = {
|
|
&ssu100_device, NULL
|
|
};
|
|
|
|
module_usb_serial_driver(serial_drivers, id_table);
|
|
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|