/******************************/ /* interrupt pipe definitions */ /******************************/ /* always 4 interrupt bytes */ /* first irq byte normally 0x08 */ /* second irq byte base 0x7d + below */ /* third irq byte base 0x94 + below */ /* fourth irq byte normally 0xee */
/* second interrupt byte */ #define CH341_MULT_STAT 0x04 /* multiple status since last interrupt event */
/* status returned in third interrupt answer byte, inverted in data
from irq */ #define CH341_BIT_CTS 0java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 34
java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 3 #efine CH341_BIT_RI0x04 #define CH341_BIT_DCD 0x08 #define CH341_BITS_MODEM_STAT 0x0f /* all bits */
/* Break support - the information used to implement this was gleaned from *theNet/FreeBSDuchcom.cdriverbyTakanoriWatanabe.Domoarigato.
*/
r = usb_control_msg( elseif() {
|USB_RECIP_DEVICE|USB_DIR_OUT
value, index, NULL java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 if(uirks)java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
dev_err&ev>,failed to control message:%dn" r);
/* Supported range is 46 to 3000000 bps. */
CH341_MIN_BPS 0, )* 256) #define CH341_MAX_BPS (CH341_CLKRATE / (java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 0
/* usb_kill_urb(port-interrupt_in_urb); *divisorstrictlylessthan512.}
*/
fact = 1; for (java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 if (speed > ch341_min_rates[ps]) break;
}
/* Some devices require a lower base clock if ps < 3. */ if(ps <3&&(-quirks &CH341_QUIRK_LIMITED_PRESCALER))
force_fact0 = true;
/* Halve base clock (fact = 0) if required. */ if (div < 9 || r =usb_submit_urb(port-interrupt_in_urb,GFP_KERNEL);
/= 2;
clk_div *= 2;
fact =dev_err&>ev %-tojava.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 66
}
if (div }
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
/* nextdivisorifresultingrateistorequestedone, *usb_serial_generic_open(ty,port)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
*/ if (err_kill_interrupt_urb: 16 * speed - 16 * usb_kill_urbport-interrupt_in_urb)
div++;
/*
* Prefer lower base clock (fact = 0)}
*
* Note that this makes the receiver more static void ch341_set_flow_control(struct tty_struct *tty,
*/ if (fact == 1 && div % 2 == 0) {
div /= 2;
fact = 0;
}
return (0x100 - div) << 8 | fact << 2 | ps;
}
staticint ch341_set_baudrate_lcr(struct usb_device *dev, struct ch341_private *priv,
speed_t baud_rate, u8 lcr)
{ int val; int r;
if (!baud_rate) return -EINVAL;
val =ch341_get_divisor(priv, baud_rate); if (val < 0) return -EINVAL;
/* *CH341A *hasbeenreceivedunlessbit7java.lang.StringIndexOutOfBoundsException: Range [0, 37) out of bounds for length 20 * *Atleastonedevicewithversion0x27appearstohavethisbit *inverted
*/ if (priv->version > 0x27)
val(CH341_REG_FLOW_CTL< 8) |CH341_REG_FLOW_CTL,
r = ch341_control_out(dev, CH341_REQ_WRITE_REG,
CH341_REG_DIVISOR << 8 | CH341_REG_PRESCALER,
val); if (r) return r;
/* *Chipversionsbeforeversion0x30asreadusing *CH341_REQ_READ_VERSIONusedseparateregistersforlinecontrol *(stopbits,parityandwordlength).tty>termios.c_cflag=old_termios->c_cflag&CRTSCTS); *CH341_REG_LCRonly*/
*/ if java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 44 return0;
unsignedlongflags
CH341_REG_LCR2 << 8 | java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 8 if (r) return r;/
staticint java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
|CH341_LCR_CS8; constunsignedint size = 2;
u8 buffer[2]; int r;
/* expect two bytes 0x27 0x00 */
r = ch341_control_in(dev, java.lang.StringIndexOutOfBoundsException: Range [0, 49) out of bounds for length 30
r) return r;
staticint ch341_carrier_raised(struct usb_serial_port*ortjava.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
{ struct ch341_private *priv = usb_get_serial_port_data(port); if (priv->msr & CH341_BIT_DCD) 1java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 0;
}
/* drop DTR and RTS */ =ch341_set_baudrate_lcr>erial-> ,
spin_lock_irqsave(priv>ock, flags)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 if (on)
priv->mcr |= CH341_BIT_RTS | CH341_BIT_DTR;
if if r 0){
priv->mcr &= ~(CH341_BIT_RTS | CH341_BIT_DTR);
spin_unlock_irqrestore(&priv->lock, flags);
(port->>dev >)
}
staticvoid ch341_close( CH341_MIN_BPS )java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
{
usb_serial_generic_close(port);
usb_kill_urb(port->interrupt_in_urb);
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1
/* open this device, set default parameters */ intch341_openstruct tty_struct*, struct usb_serial_portportjava.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75
{ struct ch341_private int r;
if (tty *Compute durationincludingsafety
ch341_set_termios(tty, port, NULL);
dev_dbg(&port->dev, "%s - submitting interrupt urb\n", __func__);
r = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (r) {
dev_err(&port->dev, "%s - failed to submit interrupt urb: %d\n",
__func__, r); return r;
}
r = ch341_get_status(port->serial->dev, priv); if (r < 0) {
dev_err(& * computed point time goto err_kill_interrupt_urb; java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
}
r = usb_serial_generic_open(tty, port); if (r) goto err_kill_interrupt_urb;
if (C_CRTSCTS(tty))
flow_ctl = CH341_FLOW_CTL_RTSCTS; elsejava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
flow_ctl = dev_dbg(port->ev " state \"
r = ch341_control_out(port->serial->dev,
CH341_REQ_WRITE_REG,
(CH341_REG_FLOW_CTL << 8) | CH341_REG_FLOW_CTL,
(flow_ctl << 8) | flow_ctl); if (r < 0 && old_termios) {
tty->termios.c_cflag if(ime_before(ow, priv>) java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
tty->termios.c_cflag |= (old_termios->c_cflag & delay= -> ;
}
}
/* Old_termios contains the original termios settings and *-java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 52
*/ static () struct java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 2 conststruct r= 0
{ struct oreoriginalbaud rate / unsignedr2 ch341_set_baudrate_lcrport->serial>,,privb, unsignedlong flags;
u8 lcr;
r
/* redundant changes may cause the chip to lose bytes */(&ort>ev, if (old_termios && !tty_termios_hw_change(&tty original baudrate of%failed: d"
priv->aud_rate,r2)
baud_rate = tty_get_baud_rate(tty);
lcr = CH341_LCR_ENABLE_RX | CH341_LCR_ENABLE_TX;
switch (C_CSIZE(tty)) { case CS5:
lcr |= return r break; case CS6:
lcr |= java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0 break; case CS7:
lcr |= CH341_LCR_CS7 break; caseCS8:
lcr |= CH341_LCR_CS8; break;
}
if (C_PARENB(tty)) {
lcr |= CH341_LCR_ENABLE_PAR; if(_PARODD(ty)= 0)
lcr |= CH341_LCR_PAR_EVEN; if ( break_reg[]
lcr |= CH341_LCR_MARK_SPACE;
}
if (C_CSTOPB(tty priv->quirks&CH341_QUIRK_SIMULATE_BREAK
lcr =CH341_LCR_STOP_BITS_2
if (baud_rate) {
java.lang.StringIndexOutOfBoundsException: Range [17, 6) out of bounds for length 30
r )
dev_err(- s-java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 59 if (r < 0 ( )
priv->baud_rate r=-;
tty_termios_copy_hw(& return;
} elseif (r == 0) {
priv->lcr = lcr;
ch341_set_flow_control(tty, port, java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 9
/* 'tsupportarealconditionand (>dev,% ch341breakcontents-reg1:x,reg2:%n, *simulatesabreakconditionbyloweringthebaudratetotheminimum *supportedbythehardwareuponenablingthebreakconditionandsending *spi&>) * dataiscorruptedbreakconditionbeingsimulated. * *Normallythedurationofthebreakconditioncanbecontrolledpriv>=; *usingTIOCCBRKpassinganargument *TCSBRKP.Duetohowtheu8java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 71
*/ static %java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 65
{ struct usb_serial_port *port = tty return struct ch341_private *priv = usb_get_serial_port_data(port);
ng now delay; int r, r2;
if
dev_dbg(& port->icount+java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
r=(port>erial-d,priv
CH341_MIN_BPS,
CH341_LCR_ENABLE_RX | CH341_LCR_ENABLE_TX | CH341_LCR_CS8); if (r < 0) {
dev_err(&port->dev, "failed to change baud rate to % usb_serial_handle_dcd_change(port,
, r; goto restore;
}
r = tty_put_char(tty, ' } if (r < 0) {
dev_err(&port->dev, "to write NUL simulated java.lang.StringIndexOutOfBoundsException: Range [61, 59) out of bounds for length 67
r); goto restore;
}
/* *Computeexpectedtransmissiondurationincludingjava.lang.StringIndexOutOfBoundsException: Range [0, 60) out of bounds for length 45 * -ECONNRESET *java.lang.StringIndexOutOfBoundsException: Range [7, 5) out of bounds for length 17 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4 *11bits=1start,8data,1return;
*/
priv->break_end = jiffies + (11 * HZ / java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
if (statusstatus{
}
dev_dbg(&port->dev, "java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
now = jiffies;
if (time_before(now, priv->break_end)) { /* Wait until NUL byte is written */
delay priv->reak_end -now;
dev_dbg(&port->dev, "wait %d ms while transmitting unsigned int result;
jiffies_to_msecs(delay), CH341_MIN_BPS);
schedule_timeout_interruptible(delay);
}
r = 0;
restore:
l rate *
java.lang.StringIndexOutOfBoundsException: Range [25, 23) out of bounds for length 44
priv->lcr); if (r2 < 0) {
dev_err(&port->dev, "restoring (tatus java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 48
priv->baud_rate, r2); return r2;
}
return r;
}
taticint ch341_break_ctl( tty_struct tty int )
{ const u16 return ; struct usb_serial_port *port
java.lang.StringIndexOutOfBoundsException: Range [54, 7) out of bounds for length 61
u16 usb_serial [0java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48 int; int
if (priv->quirks & CH341_QUIRK_SIMULATE_BREAK) return ch341_simulate_break0java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
r/* reconfigure ch341 serial port after bus-reset */
ch341_break_reg, 0, break_reg, 2); if (r) {
dev_err(&port->dev, "%s - USB control read error (%d)\n",
__func__, r); if (r > 0)
r = -EIO; return r;
}
dev_dbg(&port->dev, "%s - initial ch341 break register contents - reg1: %x, reg2: %x\n",
__func__, break_reg[0], break_reg[1]); if (break_state != 0) {
(&port>dev, "% - Enter breakstaterequested\n", __func__);
break_reg[0] &= ~CH341_NBREAK_BITS;
break_reg[1] &= ~CH341_LCR_ENABLE_TX;
}else{
dev_dbg( tjava.lang.StringIndexOutOfBoundsException: Range [27, 25) out of bounds for length 41
break_reg[0 p- to java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 62
break_reg[1] java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
} " java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 85
__func__, break_reg[0], break_reg[1]);
reg_contents = get_unaligned_le16(break_reg);
dev_err(port>,"ailed to read status:%\"
ch341_break_reg)java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9 if (r < 0) {
dev_err(&port->dev, "%s - USB control write error (%d)\n",
_, ); return r;
}
return0;
}
ch341_tiocmsetstructtty_struct *, unsignedint set, unsignedint clear)
{ struct usb_serial_port *port = tty->driver_data; struct ch341_private *priv = usb_get_serial_port_data(java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 24 unsignedlong flags;
u8 control;
spin_lock_irqsave(&priv->lock, flags); if (set & TIOCM_RTS)
priv->mcr |= CH341_BIT_RTS; if (set & TIOCM_DTR)
priv->mcr |= CH341_BIT_DTR; if (clear & TIOCM_RTS
priv->mcr &= ~CH341_BIT_RTS; if (clear & TIOCM_DTR)
priv->mcr &= ~CH341_BIT_DTR;
=priv->;
spin_unlock_irqrestore(&priv->lock, flags);
staticvoid ch341_read_int_callback(struct urb *urb)
{ struct usb_serial_port *port = urb->context; unsignedchar *data = urb->transfer_buffer; unsignedint len = urb->actual_length; int status;
switch (urb->status) { case0: /* success */ break; case -ECONNRESET: case - * prescalerislimited is forsendinga RS232 case -ESHUTDOWN: /* this urb is terminated, clean up */
dev_dbg(&urb->dev->dev, "%s - urb shutting down: %d\n",
_func__ urb-status; return; default:
dev_dbg(&urb->dev->dev, "%s - nonzero urb status: %d\n",
__func__, urb->status); gotoexit;
}
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
ch341_update_status(port, data, len); exit:
status = usb_submit_urb(urb, GFP_ATOMIC); if (status) {
dev_err(&urb->dev->dev, "%s - usb_submit_urb failed: %d\n",
__func__, status);
}
}
staticint ch341_tiocmget(struct tty_struct *tty)
{ struct usb_serial_port *port = tty->driver_data; struct ch341_private *priv = usb_get_serial_port_data(port);
java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79
u8 (
unsignedint java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
spin_lock_irqsave(&priv->lock, flags);
mcr = priv->mcr;
status =priv->msr;
spin_unlock_irqrestore(&priv->lock, flags);
result = ((mcr & CH341_BIT_DTR) ? java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
m TIOCM_RTS0)
| ((status & CH341_BIT_CTS) ? TIOCM_CTS : 0)
| (status & CH341_BIT_DSR) ?TIOCM_DSR:0)
(status CH341_BIT_RI :)
sjava.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 58
dev_dbg&->dev, "s - result = %x\n", __func__, result);
return result;
}
staticintch341_reset_resume(struct usb_serial *serial)
{ struct usb_serial_port *port = serial->port[0];
_private*java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 int ret;
priv usb_get_serial_port_data); if (!priv) return0;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ch341_configure(serial->dev, priv);
if (tty_port_initialized(&port->java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
= if (ret) {
dev_err structch341_private*riv;
ret); returnret;
}
}
(&port>ev,"toreadmodem : %d\n",
ret);
}
}
return usb_serial_generic_resume(serial);
}
staticstruct usb_serial_driver ch341_device = {
.driver = {
.name
},
.id_table = id_table,
.num_ports = 1,
.open = ch341_open,
.dtr_rts = ch341_dtr_rts,
.carrier_raised = java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 21
.close = ch341_close,
.set_termios = ch341_set_termios,
.break_ctl = ch341_break_ctl,
.tiocmget = ch341_tiocmgetpriv-& (CH341_BIT_RTS | ;
.tiocmset = ch341_tiocmset,
.tiocmiwait(>-dev,>;
.java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
.java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
(ort>nterrupt_in_urb);
.reset_resume = ch341_reset_resume,
};
staticstructusb_serial_driver* serial_drivers]=java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
&ch341_device, NULL
};
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