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path: root/drivers/usb/serial/cp210x.c
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Diffstat (limited to 'drivers/usb/serial/cp210x.c')
-rw-r--r--drivers/usb/serial/cp210x.c141
1 files changed, 64 insertions, 77 deletions
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index ba5e07e188a..28af5acc336 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -52,8 +52,6 @@ static int cp210x_startup(struct usb_serial *);
static void cp210x_release(struct usb_serial *);
static void cp210x_dtr_rts(struct usb_serial_port *p, int on);
-static bool debug;
-
static const struct usb_device_id id_table[] = {
{ USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */
{ USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */
@@ -304,9 +302,8 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request,
kfree(buf);
if (result != size) {
- dbg("%s - Unable to send config request, "
- "request=0x%x size=%d result=%d",
- __func__, request, size, result);
+ dev_dbg(&port->dev, "%s - Unable to send config request, request=0x%x size=%d result=%d\n",
+ __func__, request, size, result);
if (result > 0)
result = -EPROTO;
@@ -361,9 +358,8 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request,
kfree(buf);
if ((size > 2 && result != size) || result < 0) {
- dbg("%s - Unable to send request, "
- "request=0x%x size=%d result=%d",
- __func__, request, size, result);
+ dev_dbg(&port->dev, "%s - Unable to send request, request=0x%x size=%d result=%d\n",
+ __func__, request, size, result);
if (result > 0)
result = -EPROTO;
@@ -487,13 +483,14 @@ static void cp210x_get_termios(struct tty_struct *tty,
static void cp210x_get_termios_port(struct usb_serial_port *port,
unsigned int *cflagp, unsigned int *baudp)
{
+ struct device *dev = &port->dev;
unsigned int cflag, modem_ctl[4];
unsigned int baud;
unsigned int bits;
cp210x_get_config(port, CP210X_GET_BAUDRATE, &baud, 4);
- dbg("%s - baud rate = %d", __func__, baud);
+ dev_dbg(dev, "%s - baud rate = %d\n", __func__, baud);
*baudp = baud;
cflag = *cflagp;
@@ -502,31 +499,30 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
cflag &= ~CSIZE;
switch (bits & BITS_DATA_MASK) {
case BITS_DATA_5:
- dbg("%s - data bits = 5", __func__);
+ dev_dbg(dev, "%s - data bits = 5\n", __func__);
cflag |= CS5;
break;
case BITS_DATA_6:
- dbg("%s - data bits = 6", __func__);
+ dev_dbg(dev, "%s - data bits = 6\n", __func__);
cflag |= CS6;
break;
case BITS_DATA_7:
- dbg("%s - data bits = 7", __func__);
+ dev_dbg(dev, "%s - data bits = 7\n", __func__);
cflag |= CS7;
break;
case BITS_DATA_8:
- dbg("%s - data bits = 8", __func__);
+ dev_dbg(dev, "%s - data bits = 8\n", __func__);
cflag |= CS8;
break;
case BITS_DATA_9:
- dbg("%s - data bits = 9 (not supported, using 8 data bits)",
- __func__);
+ dev_dbg(dev, "%s - data bits = 9 (not supported, using 8 data bits)\n", __func__);
cflag |= CS8;
bits &= ~BITS_DATA_MASK;
bits |= BITS_DATA_8;
cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
break;
default:
- dbg("%s - Unknown number of data bits, using 8", __func__);
+ dev_dbg(dev, "%s - Unknown number of data bits, using 8\n", __func__);
cflag |= CS8;
bits &= ~BITS_DATA_MASK;
bits |= BITS_DATA_8;
@@ -536,29 +532,29 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
switch (bits & BITS_PARITY_MASK) {
case BITS_PARITY_NONE:
- dbg("%s - parity = NONE", __func__);
+ dev_dbg(dev, "%s - parity = NONE\n", __func__);
cflag &= ~PARENB;
break;
case BITS_PARITY_ODD:
- dbg("%s - parity = ODD", __func__);
+ dev_dbg(dev, "%s - parity = ODD\n", __func__);
cflag |= (PARENB|PARODD);
break;
case BITS_PARITY_EVEN:
- dbg("%s - parity = EVEN", __func__);
+ dev_dbg(dev, "%s - parity = EVEN\n", __func__);
cflag &= ~PARODD;
cflag |= PARENB;
break;
case BITS_PARITY_MARK:
- dbg("%s - parity = MARK", __func__);
+ dev_dbg(dev, "%s - parity = MARK\n", __func__);
cflag |= (PARENB|PARODD|CMSPAR);
break;
case BITS_PARITY_SPACE:
- dbg("%s - parity = SPACE", __func__);
+ dev_dbg(dev, "%s - parity = SPACE\n", __func__);
cflag &= ~PARODD;
cflag |= (PARENB|CMSPAR);
break;
default:
- dbg("%s - Unknown parity mode, disabling parity", __func__);
+ dev_dbg(dev, "%s - Unknown parity mode, disabling parity\n", __func__);
cflag &= ~PARENB;
bits &= ~BITS_PARITY_MASK;
cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
@@ -568,21 +564,19 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
cflag &= ~CSTOPB;
switch (bits & BITS_STOP_MASK) {
case BITS_STOP_1:
- dbg("%s - stop bits = 1", __func__);
+ dev_dbg(dev, "%s - stop bits = 1\n", __func__);
break;
case BITS_STOP_1_5:
- dbg("%s - stop bits = 1.5 (not supported, using 1 stop bit)",
- __func__);
+ dev_dbg(dev, "%s - stop bits = 1.5 (not supported, using 1 stop bit)\n", __func__);
bits &= ~BITS_STOP_MASK;
cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
break;
case BITS_STOP_2:
- dbg("%s - stop bits = 2", __func__);
+ dev_dbg(dev, "%s - stop bits = 2\n", __func__);
cflag |= CSTOPB;
break;
default:
- dbg("%s - Unknown number of stop bits, using 1 stop bit",
- __func__);
+ dev_dbg(dev, "%s - Unknown number of stop bits, using 1 stop bit\n", __func__);
bits &= ~BITS_STOP_MASK;
cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
break;
@@ -590,10 +584,10 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
if (modem_ctl[0] & 0x0008) {
- dbg("%s - flow control = CRTSCTS", __func__);
+ dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__);
cflag |= CRTSCTS;
} else {
- dbg("%s - flow control = NONE", __func__);
+ dev_dbg(dev, "%s - flow control = NONE\n", __func__);
cflag &= ~CRTSCTS;
}
@@ -640,7 +634,7 @@ static void cp210x_change_speed(struct tty_struct *tty,
*/
baud = cp210x_quantise_baudrate(baud);
- dbg("%s - setting baud rate to %u", __func__, baud);
+ dev_dbg(&port->dev, "%s - setting baud rate to %u\n", __func__, baud);
if (cp210x_set_config(port, CP210X_SET_BAUDRATE, &baud,
sizeof(baud))) {
dev_warn(&port->dev, "failed to set baud rate to %u\n", baud);
@@ -656,11 +650,12 @@ static void cp210x_change_speed(struct tty_struct *tty,
static void cp210x_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
{
+ struct device *dev = &port->dev;
unsigned int cflag, old_cflag;
unsigned int bits;
unsigned int modem_ctl[4];
- dbg("%s - port %d", __func__, port->number);
+ dev_dbg(dev, "%s - port %d\n", __func__, port->number);
if (!tty)
return;
@@ -678,34 +673,31 @@ static void cp210x_set_termios(struct tty_struct *tty,
switch (cflag & CSIZE) {
case CS5:
bits |= BITS_DATA_5;
- dbg("%s - data bits = 5", __func__);
+ dev_dbg(dev, "%s - data bits = 5\n", __func__);
break;
case CS6:
bits |= BITS_DATA_6;
- dbg("%s - data bits = 6", __func__);
+ dev_dbg(dev, "%s - data bits = 6\n", __func__);
break;
case CS7:
bits |= BITS_DATA_7;
- dbg("%s - data bits = 7", __func__);
+ dev_dbg(dev, "%s - data bits = 7\n", __func__);
break;
case CS8:
bits |= BITS_DATA_8;
- dbg("%s - data bits = 8", __func__);
+ dev_dbg(dev, "%s - data bits = 8\n", __func__);
break;
/*case CS9:
bits |= BITS_DATA_9;
- dbg("%s - data bits = 9", __func__);
+ dev_dbg(dev, "%s - data bits = 9\n", __func__);
break;*/
default:
- dbg("cp210x driver does not "
- "support the number of bits requested,"
- " using 8 bit mode");
+ dev_dbg(dev, "cp210x driver does not support the number of bits requested, using 8 bit mode\n");
bits |= BITS_DATA_8;
break;
}
if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
- dbg("Number of data bits requested "
- "not supported by device");
+ dev_dbg(dev, "Number of data bits requested not supported by device\n");
}
if ((cflag & (PARENB|PARODD|CMSPAR)) !=
@@ -714,25 +706,25 @@ static void cp210x_set_termios(struct tty_struct *tty,
bits &= ~BITS_PARITY_MASK;
if (cflag & PARENB) {
if (cflag & CMSPAR) {
- if (cflag & PARODD) {
- bits |= BITS_PARITY_MARK;
- dbg("%s - parity = MARK", __func__);
- } else {
- bits |= BITS_PARITY_SPACE;
- dbg("%s - parity = SPACE", __func__);
- }
+ if (cflag & PARODD) {
+ bits |= BITS_PARITY_MARK;
+ dev_dbg(dev, "%s - parity = MARK\n", __func__);
+ } else {
+ bits |= BITS_PARITY_SPACE;
+ dev_dbg(dev, "%s - parity = SPACE\n", __func__);
+ }
} else {
- if (cflag & PARODD) {
- bits |= BITS_PARITY_ODD;
- dbg("%s - parity = ODD", __func__);
- } else {
- bits |= BITS_PARITY_EVEN;
- dbg("%s - parity = EVEN", __func__);
- }
+ if (cflag & PARODD) {
+ bits |= BITS_PARITY_ODD;
+ dev_dbg(dev, "%s - parity = ODD\n", __func__);
+ } else {
+ bits |= BITS_PARITY_EVEN;
+ dev_dbg(dev, "%s - parity = EVEN\n", __func__);
+ }
}
}
if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
- dbg("Parity mode not supported by device");
+ dev_dbg(dev, "Parity mode not supported by device\n");
}
if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
@@ -740,37 +732,36 @@ static void cp210x_set_termios(struct tty_struct *tty,
bits &= ~BITS_STOP_MASK;
if (cflag & CSTOPB) {
bits |= BITS_STOP_2;
- dbg("%s - stop bits = 2", __func__);
+ dev_dbg(dev, "%s - stop bits = 2\n", __func__);
} else {
bits |= BITS_STOP_1;
- dbg("%s - stop bits = 1", __func__);
+ dev_dbg(dev, "%s - stop bits = 1\n", __func__);
}
if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
- dbg("Number of stop bits requested "
- "not supported by device");
+ dev_dbg(dev, "Number of stop bits requested not supported by device\n");
}
if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
- dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
- __func__, modem_ctl[0], modem_ctl[1],
- modem_ctl[2], modem_ctl[3]);
+ dev_dbg(dev, "%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x\n",
+ __func__, modem_ctl[0], modem_ctl[1],
+ modem_ctl[2], modem_ctl[3]);
if (cflag & CRTSCTS) {
modem_ctl[0] &= ~0x7B;
modem_ctl[0] |= 0x09;
modem_ctl[1] = 0x80;
- dbg("%s - flow control = CRTSCTS", __func__);
+ dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__);
} else {
modem_ctl[0] &= ~0x7B;
modem_ctl[0] |= 0x01;
modem_ctl[1] |= 0x40;
- dbg("%s - flow control = NONE", __func__);
+ dev_dbg(dev, "%s - flow control = NONE\n", __func__);
}
- dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
- __func__, modem_ctl[0], modem_ctl[1],
- modem_ctl[2], modem_ctl[3]);
+ dev_dbg(dev, "%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x\n",
+ __func__, modem_ctl[0], modem_ctl[1],
+ modem_ctl[2], modem_ctl[3]);
cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16);
}
@@ -805,7 +796,7 @@ static int cp210x_tiocmset_port(struct usb_serial_port *port,
control |= CONTROL_WRITE_DTR;
}
- dbg("%s - control = 0x%.4x", __func__, control);
+ dev_dbg(&port->dev, "%s - control = 0x%.4x\n", __func__, control);
return cp210x_set_config(port, CP210X_SET_MHS, &control, 2);
}
@@ -833,7 +824,7 @@ static int cp210x_tiocmget (struct tty_struct *tty)
|((control & CONTROL_RING)? TIOCM_RI : 0)
|((control & CONTROL_DCD) ? TIOCM_CD : 0);
- dbg("%s - control = 0x%.2x", __func__, control);
+ dev_dbg(&port->dev, "%s - control = 0x%.2x\n", __func__, control);
return result;
}
@@ -847,8 +838,8 @@ static void cp210x_break_ctl (struct tty_struct *tty, int break_state)
state = BREAK_OFF;
else
state = BREAK_ON;
- dbg("%s - turning break %s", __func__,
- state == BREAK_OFF ? "off" : "on");
+ dev_dbg(&port->dev, "%s - turning break %s\n", __func__,
+ state == BREAK_OFF ? "off" : "on");
cp210x_set_config(port, CP210X_SET_BREAK, &state, 2);
}
@@ -865,7 +856,6 @@ static int cp210x_startup(struct usb_serial *serial)
if (!port_priv)
return -ENOMEM;
- memset(port_priv, 0x00, sizeof(*port_priv));
port_priv->bInterfaceNumber =
serial->interface->cur_altsetting->desc.bInterfaceNumber;
@@ -892,6 +882,3 @@ module_usb_serial_driver(serial_drivers, id_table);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable verbose debugging messages");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-11 16:28:52 +0000