* vxxPKGVERxx by R. Steve McKown, Titanium Mirror, Inc., rsmckown@gmail.com.
* Added port configuration, usb descriptor and gpio management.
*
- * Outstanding Issues:
- * Buffers are not flushed when the port is opened.
- * Multiple calls to write() may fail with "Resource temporarily unavailable"
- *
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/usb.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include <linux/usb/serial.h>
/*
/*
* Function Prototypes
*/
-static int cp210x_open(struct usb_serial_port*, struct file*);
-static void cp210x_cleanup(struct usb_serial_port*);
-static void cp210x_close(struct usb_serial_port*, struct file*);
-static void cp210x_get_termios(struct usb_serial_port*);
-static void cp210x_set_termios(struct usb_serial_port*, struct ktermios*);
-static int cp210x_tiocmget(struct usb_serial_port *, struct file *);
-static int cp210x_tiocmset(struct usb_serial_port *, struct file *,
+static int cp210x_open(struct tty_struct *, struct usb_serial_port *,
+ struct file *);
+static void cp210x_cleanup(struct usb_serial_port *);
+static void cp210x_close(struct usb_serial_port *);
+static void cp210x_get_termios(struct tty_struct *,
+ struct usb_serial_port *port);
+static void cp210x_get_termios_port(struct usb_serial_port *port,
+ unsigned int *cflagp, unsigned int *baudp);
+static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *,
+ struct ktermios*);
+static int cp210x_tiocmget(struct tty_struct *, struct file *);
+static int cp210x_tiocmset(struct tty_struct *, struct file *,
+ unsigned int, unsigned int);
+static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *,
unsigned int, unsigned int);
-static void cp210x_break_ctl(struct usb_serial_port*, int);
+static void cp210x_break_ctl(struct tty_struct *, int);
static int cp210x_startup(struct usb_serial *);
-static void cp210x_shutdown(struct usb_serial*);
-static int cp210x_ioctl(struct usb_serial_port *, struct file *,
+static void cp210x_disconnect(struct usb_serial *);
+static int cp210x_ioctl(struct tty_struct *, struct file *,
unsigned int, unsigned long);
static int debug;
},
.usb_driver = &cp210x_driver,
.id_table = id_table,
- .num_interrupt_in = 0,
- .num_bulk_in = NUM_DONT_CARE,
- .num_bulk_out = NUM_DONT_CARE,
.num_ports = 1,
.open = cp210x_open,
.close = cp210x_close,
.tiocmget = cp210x_tiocmget,
.tiocmset = cp210x_tiocmset,
.attach = cp210x_startup,
- .shutdown = cp210x_shutdown,
+ .disconnect = cp210x_disconnect,
};
/* Config request types */
#define REQTYPE_HOST_TO_DEVICE 0x41
#define REQTYPE_DEVICE_TO_HOST 0xc1
-/* Config SET requests. To GET, add 1 to the request number */
-#define CP2101_UART 0x00 /* Enable / Disable */
-#define CP2101_BAUDRATE 0x01 /* (BAUD_RATE_GEN_FREQ / baudrate) */
-#define CP2101_BITS 0x03 /* 0x(0)(databits)(parity)(stopbits) */
-#define CP2101_BREAK 0x05 /* On / Off */
-#define CP2101_CONTROL 0x07 /* Flow control line states */
-#define CP2101_MODEMCTL 0x13 /* Modem controls */
-#define CP2101_CONFIG_6 0x19 /* 6 bytes of config data ??? */
-
-/* CP2101_UART */
+/* Config request codes */
+#define CP210X_IFC_ENABLE 0x00
+#define CP210X_SET_BAUDDIV 0x01
+#define CP210X_GET_BAUDDIV 0x02
+#define CP210X_SET_LINE_CTL 0x03
+#define CP210X_GET_LINE_CTL 0x04
+#define CP210X_SET_BREAK 0x05
+#define CP210X_IMM_CHAR 0x06
+#define CP210X_SET_MHS 0x07
+#define CP210X_GET_MDMSTS 0x08
+#define CP210X_SET_XON 0x09
+#define CP210X_SET_XOFF 0x0A
+#define CP210X_SET_EVENTMASK 0x0B
+#define CP210X_GET_EVENTMASK 0x0C
+#define CP210X_SET_CHAR 0x0D
+#define CP210X_GET_CHARS 0x0E
+#define CP210X_GET_PROPS 0x0F
+#define CP210X_GET_COMM_STATUS 0x10
+#define CP210X_RESET 0x11
+#define CP210X_PURGE 0x12
+#define CP210X_SET_FLOW 0x13
+#define CP210X_GET_FLOW 0x14
+#define CP210X_EMBED_EVENTS 0x15
+#define CP210X_GET_EVENTSTATE 0x16
+#define CP210X_SET_CHARS 0x19
+
+/* CP210X_IFC_ENABLE */
#define UART_ENABLE 0x0001
#define UART_DISABLE 0x0000
-/* CP2101_BAUDRATE */
+/* CP210X_(SET|GET)_BAUDDIV */
#define BAUD_RATE_GEN_FREQ 0x384000
-/* CP2101_BITS */
+/* CP210X_(SET|GET)_LINE_CTL */
#define BITS_DATA_MASK 0X0f00
#define BITS_DATA_5 0X0500
#define BITS_DATA_6 0X0600
#define BITS_STOP_1_5 0x0001
#define BITS_STOP_2 0x0002
-/* CP2101_BREAK */
+/* CP210X_SET_BREAK */
#define BREAK_ON 0x0000
#define BREAK_OFF 0x0001
-/* CP2101_CONTROL */
+/* CP210X_(SET_MHS|GET_MDMSTS) */
#define CONTROL_DTR 0x0001
#define CONTROL_RTS 0x0002
#define CONTROL_CTS 0x0010
buf = kcalloc(length, sizeof(__le32), GFP_KERNEL);
if (!buf) {
- dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__);
+ dev_err(&port->dev, "%s - out of memory.\n", __func__);
return -ENOMEM;
}
- /* For get requests, the request number must be incremented */
- request++;
-
/* Issue the request, attempting to read 'size' bytes */
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
request, REQTYPE_DEVICE_TO_HOST, 0x0000,
kfree(buf);
if (result != size) {
- dev_err(&port->dev, "%s - Unable to send config request, "
+ dbg("%s - Unable to send config request, "
"request=0x%x size=%d result=%d\n",
- __FUNCTION__, request, size, result);
+ __func__, request, size, result);
return -EPROTO;
}
buf = kmalloc(length * sizeof(__le32), GFP_KERNEL);
if (!buf) {
dev_err(&port->dev, "%s - out of memory.\n",
- __FUNCTION__);
+ __func__);
return -ENOMEM;
}
kfree(buf);
if ((size > 2 && result != size) || result < 0) {
- dev_err(&port->dev, "%s - Unable to send request, "
+ dbg("%s - Unable to send request, "
"request=0x%x size=%d result=%d\n",
- __FUNCTION__, request, size, result);
+ __func__, request, size, result);
return -EPROTO;
}
return cp210x_set_config(port, request, &data, 2);
}
-static int cp210x_open(struct usb_serial_port *port, struct file *filp)
+/*
+ * cp210x_quantise_baudrate
+ * Quantises the baud rate as per AN205 Table 1
+ */
+static unsigned int cp210x_quantise_baudrate(unsigned int baud) {
+ if (baud <= 56) baud = 0;
+ else if (baud <= 300) baud = 300;
+ else if (baud <= 600) baud = 600;
+ else if (baud <= 1200) baud = 1200;
+ else if (baud <= 1800) baud = 1800;
+ else if (baud <= 2400) baud = 2400;
+ else if (baud <= 4000) baud = 4000;
+ else if (baud <= 4803) baud = 4800;
+ else if (baud <= 7207) baud = 7200;
+ else if (baud <= 9612) baud = 9600;
+ else if (baud <= 14428) baud = 14400;
+ else if (baud <= 16062) baud = 16000;
+ else if (baud <= 19250) baud = 19200;
+ else if (baud <= 28912) baud = 28800;
+ else if (baud <= 38601) baud = 38400;
+ else if (baud <= 51558) baud = 51200;
+ else if (baud <= 56280) baud = 56000;
+ else if (baud <= 58053) baud = 57600;
+ else if (baud <= 64111) baud = 64000;
+ else if (baud <= 77608) baud = 76800;
+ else if (baud <= 117028) baud = 115200;
+ else if (baud <= 129347) baud = 128000;
+ else if (baud <= 156868) baud = 153600;
+ else if (baud <= 237832) baud = 230400;
+ else if (baud <= 254234) baud = 250000;
+ else if (baud <= 273066) baud = 256000;
+ else if (baud <= 491520) baud = 460800;
+ else if (baud <= 567138) baud = 500000;
+ else if (baud <= 670254) baud = 576000;
+ else if (baud <= 1053257) baud = 921600;
+ else if (baud <= 1474560) baud = 1228800;
+ else if (baud <= 2457600) baud = 1843200;
+ else baud = 3686400;
+ return baud;
+}
+
+static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port,
+ struct file *filp)
{
struct usb_serial *serial = port->serial;
int result;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
- if (cp210x_set_config_single(port, CP2101_UART, UART_ENABLE)) {
+ if (cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_ENABLE)) {
dev_err(&port->dev, "%s - Unable to enable UART\n",
- __FUNCTION__);
+ __func__);
return -EPROTO;
}
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);
+ "error %d\n", __func__, result);
return result;
}
/* Configure the termios structure */
- cp210x_get_termios(port);
+ cp210x_get_termios(tty, port);
/* Set the DTR and RTS pins low */
- cp210x_tiocmset(port, NULL, TIOCM_DTR | TIOCM_RTS, 0);
+ cp210x_tiocmset_port(tty ? (struct usb_serial_port *) tty->driver_data
+ : port,
+ NULL, TIOCM_DTR | TIOCM_RTS, 0);
return 0;
}
{
struct usb_serial *serial = port->serial;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (serial->dev) {
/* shutdown any bulk reads that might be going on */
}
}
-static void cp210x_close(struct usb_serial_port *port, struct file *filp)
+static void cp210x_close(struct usb_serial_port *port)
{
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
/* shutdown our urbs */
- dbg("%s - shutting down urbs", __FUNCTION__);
+ dbg("%s - shutting down urbs", __func__);
usb_kill_urb(port->write_urb);
usb_kill_urb(port->read_urb);
- cp210x_set_config_single(port, CP2101_UART, UART_DISABLE);
+ mutex_lock(&port->serial->disc_mutex);
+ if (!port->serial->disconnected)
+ cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE);
+ mutex_unlock(&port->serial->disc_mutex);
}
-static int cp210x_ioctl(struct usb_serial_port *port, struct file *file,
+static int cp210x_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg)
{
+ struct usb_serial_port *port = tty->driver_data;
+
dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd);
switch (cmd) {
case TIOCMGET:
{
- int result = cp210x_tiocmget(port, file);
+ int result = cp210x_tiocmget(tty, file);
if (copy_to_user(&arg, &result, sizeof(int)))
return -EFAULT;
return 0;
return -EFAULT;
/* this looks wrong: TIOCMSET isn't going to work right */
- if (cp210x_tiocmset(port, file, cmd==TIOCMBIC ? 0 : val,
+ if (cp210x_tiocmset(tty, file, cmd==TIOCMBIC ? 0 : val,
cmd==TIOCMBIC ? val : 0))
return -EFAULT;
return 0;
* from the device, corrects any unsupported values, and configures the
* termios structure to reflect the state of the device
*/
-static void cp210x_get_termios(struct usb_serial_port *port)
+static void cp210x_get_termios(struct tty_struct *tty,
+ struct usb_serial_port *port)
{
- unsigned int cflag, modem_ctl[4];
- int baud;
- int bits;
+ unsigned int baud;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ if (tty) {
+ cp210x_get_termios_port(tty->driver_data,
+ &tty->termios->c_cflag, &baud);
+ tty_encode_baud_rate(tty, baud, baud);
+ }
- if (!port->tty || !port->tty->termios) {
- dbg("%s - no tty structures", __FUNCTION__);
- return;
+ else {
+ unsigned int cflag;
+ cflag = 0;
+ cp210x_get_termios_port(port, &cflag, &baud);
}
+}
+
+/*
+ * cp210x_get_termios_port
+ * This is the heart of cp210x_get_termios which always uses a &usb_serial_port.
+ */
+static void cp210x_get_termios_port(struct usb_serial_port *port,
+ unsigned int *cflagp, unsigned int *baudp)
+{
+ unsigned int cflag, modem_ctl[4];
+ unsigned int baud;
+ unsigned int bits;
+
+ dbg("%s - port %d", __func__, port->number);
- cp210x_get_config(port, CP2101_BAUDRATE, &baud, 2);
+ cp210x_get_config(port, CP210X_GET_BAUDDIV, &baud, 2);
/* Convert to baudrate */
if (baud)
- baud = BAUD_RATE_GEN_FREQ / baud;
+ baud = cp210x_quantise_baudrate((BAUD_RATE_GEN_FREQ + baud/2)/ baud);
- dbg("%s - baud rate = %d", __FUNCTION__, baud);
+ dbg("%s - baud rate = %d", __func__, baud);
+ *baudp = baud;
- tty_encode_baud_rate(port->tty, baud, baud);
- cflag = port->tty->termios->c_cflag;
+ cflag = *cflagp;
- cp210x_get_config(port, CP2101_BITS, &bits, 2);
+ cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
cflag &= ~CSIZE;
- switch(bits & BITS_DATA_MASK) {
- case BITS_DATA_5:
- dbg("%s - data bits = 5", __FUNCTION__);
- cflag |= CS5;
- break;
- case BITS_DATA_6:
- dbg("%s - data bits = 6", __FUNCTION__);
- cflag |= CS6;
- break;
- case BITS_DATA_7:
- dbg("%s - data bits = 7", __FUNCTION__);
- cflag |= CS7;
- break;
- case BITS_DATA_8:
- dbg("%s - data bits = 8", __FUNCTION__);
- cflag |= CS8;
- break;
- case BITS_DATA_9:
- dbg("%s - data bits = 9 (not supported, "
- "using 8 data bits)", __FUNCTION__);
- cflag |= CS8;
- bits &= ~BITS_DATA_MASK;
- bits |= BITS_DATA_8;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
- default:
- dbg("%s - Unknown number of data bits, "
- "using 8", __FUNCTION__);
- cflag |= CS8;
- bits &= ~BITS_DATA_MASK;
- bits |= BITS_DATA_8;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
+ switch (bits & BITS_DATA_MASK) {
+ case BITS_DATA_5:
+ dbg("%s - data bits = 5", __func__);
+ cflag |= CS5;
+ break;
+ case BITS_DATA_6:
+ dbg("%s - data bits = 6", __func__);
+ cflag |= CS6;
+ break;
+ case BITS_DATA_7:
+ dbg("%s - data bits = 7", __func__);
+ cflag |= CS7;
+ break;
+ case BITS_DATA_8:
+ dbg("%s - data bits = 8", __func__);
+ cflag |= CS8;
+ break;
+ case BITS_DATA_9:
+ dbg("%s - data bits = 9 (not supported, using 8 data bits)",
+ __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__);
+ cflag |= CS8;
+ bits &= ~BITS_DATA_MASK;
+ bits |= BITS_DATA_8;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
}
- switch(bits & BITS_PARITY_MASK) {
- case BITS_PARITY_NONE:
- dbg("%s - parity = NONE", __FUNCTION__);
- cflag &= ~PARENB;
- break;
- case BITS_PARITY_ODD:
- dbg("%s - parity = ODD", __FUNCTION__);
- cflag |= (PARENB|PARODD);
- break;
- case BITS_PARITY_EVEN:
- dbg("%s - parity = EVEN", __FUNCTION__);
- cflag &= ~PARODD;
- cflag |= PARENB;
- break;
- case BITS_PARITY_MARK:
- dbg("%s - parity = MARK (not supported, "
- "disabling parity)", __FUNCTION__);
- cflag &= ~PARENB;
- bits &= ~BITS_PARITY_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
- case BITS_PARITY_SPACE:
- dbg("%s - parity = SPACE (not supported, "
- "disabling parity)", __FUNCTION__);
- cflag &= ~PARENB;
- bits &= ~BITS_PARITY_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
- default:
- dbg("%s - Unknown parity mode, "
- "disabling parity", __FUNCTION__);
- cflag &= ~PARENB;
- bits &= ~BITS_PARITY_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
+ switch (bits & BITS_PARITY_MASK) {
+ case BITS_PARITY_NONE:
+ dbg("%s - parity = NONE", __func__);
+ cflag &= ~PARENB;
+ break;
+ case BITS_PARITY_ODD:
+ dbg("%s - parity = ODD", __func__);
+ cflag |= (PARENB|PARODD);
+ break;
+ case BITS_PARITY_EVEN:
+ dbg("%s - parity = EVEN", __func__);
+ cflag &= ~PARODD;
+ cflag |= PARENB;
+ break;
+ case BITS_PARITY_MARK:
+ dbg("%s - parity = MARK (not supported, disabling parity)",
+ __func__);
+ cflag &= ~PARENB;
+ bits &= ~BITS_PARITY_MASK;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
+ case BITS_PARITY_SPACE:
+ dbg("%s - parity = SPACE (not supported, disabling parity)",
+ __func__);
+ cflag &= ~PARENB;
+ bits &= ~BITS_PARITY_MASK;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
+ default:
+ dbg("%s - Unknown parity mode, disabling parity", __func__);
+ cflag &= ~PARENB;
+ bits &= ~BITS_PARITY_MASK;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
}
cflag &= ~CSTOPB;
- switch(bits & BITS_STOP_MASK) {
- case BITS_STOP_1:
- dbg("%s - stop bits = 1", __FUNCTION__);
- break;
- case BITS_STOP_1_5:
- dbg("%s - stop bits = 1.5 (not supported, "
- "using 1 stop bit)", __FUNCTION__);
- bits &= ~BITS_STOP_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
- case BITS_STOP_2:
- dbg("%s - stop bits = 2", __FUNCTION__);
- cflag |= CSTOPB;
- break;
- default:
- dbg("%s - Unknown number of stop bits, "
- "using 1 stop bit", __FUNCTION__);
- bits &= ~BITS_STOP_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
+ switch (bits & BITS_STOP_MASK) {
+ case BITS_STOP_1:
+ dbg("%s - stop bits = 1", __func__);
+ break;
+ case BITS_STOP_1_5:
+ dbg("%s - stop bits = 1.5 (not supported, using 1 stop bit)",
+ __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__);
+ cflag |= CSTOPB;
+ break;
+ default:
+ dbg("%s - Unknown number of stop bits, using 1 stop bit",
+ __func__);
+ bits &= ~BITS_STOP_MASK;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
}
- cp210x_get_config(port, CP2101_MODEMCTL, modem_ctl, 16);
+ cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
if (modem_ctl[0] & 0x0008) {
- dbg("%s - flow control = CRTSCTS", __FUNCTION__);
+ dbg("%s - flow control = CRTSCTS", __func__);
cflag |= CRTSCTS;
} else {
- dbg("%s - flow control = NONE", __FUNCTION__);
+ dbg("%s - flow control = NONE", __func__);
cflag &= ~CRTSCTS;
}
- port->tty->termios->c_cflag = cflag;
+ *cflagp = cflag;
}
-static void cp210x_set_termios(struct usb_serial_port *port,
- struct ktermios *old_termios)
+static void cp210x_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
{
unsigned int cflag, old_cflag;
- int baud = 0, bits;
+ unsigned int baud = 0, bits;
unsigned int modem_ctl[4];
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
- if (!port->tty || !port->tty->termios) {
- dbg("%s - no tty structures", __FUNCTION__);
+ if (!tty)
return;
- }
- port->tty->termios->c_cflag &= ~CMSPAR;
- cflag = port->tty->termios->c_cflag;
+ tty->termios->c_cflag &= ~CMSPAR;
+ cflag = tty->termios->c_cflag;
old_cflag = old_termios->c_cflag;
- baud = tty_get_baud_rate(port->tty);
+ baud = cp210x_quantise_baudrate(tty_get_baud_rate(tty));
/* If the baud rate is to be updated*/
- if (baud != tty_termios_baud_rate(old_termios)) {
- switch (baud) {
- case 0:
- case 600:
- case 1200:
- case 1800:
- case 2400:
- case 4800:
- case 7200:
- case 9600:
- case 14400:
- case 19200:
- case 28800:
- case 38400:
- case 55854:
- case 57600:
- case 115200:
- case 127117:
- case 230400:
- case 460800:
- case 921600:
- case 3686400:
- break;
- default:
- baud = 9600;
- break;
- }
-
- if (baud) {
- dbg("%s - Setting baud rate to %d baud", __FUNCTION__,
- baud);
- if (cp210x_set_config_single(port, CP2101_BAUDRATE,
- (BAUD_RATE_GEN_FREQ / baud))) {
- dev_err(&port->dev, "Baud rate requested not "
- "supported by device\n");
- baud = tty_termios_baud_rate(old_termios);
- }
+ if (baud != tty_termios_baud_rate(old_termios) && baud != 0) {
+ dbg("%s - Setting baud rate to %d baud", __func__,
+ baud);
+ if (cp210x_set_config_single(port, CP210X_SET_BAUDDIV,
+ ((BAUD_RATE_GEN_FREQ + baud/2) / baud))) {
+ dbg("Baud rate requested not supported by device\n");
+ baud = tty_termios_baud_rate(old_termios);
}
}
/* Report back the resulting baud rate */
- tty_encode_baud_rate(port->tty, baud, baud);
+ tty_encode_baud_rate(tty, baud, baud);
/* If the number of data bits is to be updated */
if ((cflag & CSIZE) != (old_cflag & CSIZE)) {
- cp210x_get_config(port, CP2101_BITS, &bits, 2);
+ cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
bits &= ~BITS_DATA_MASK;
switch (cflag & CSIZE) {
- case CS5:
- bits |= BITS_DATA_5;
- dbg("%s - data bits = 5", __FUNCTION__);
- break;
- case CS6:
- bits |= BITS_DATA_6;
- dbg("%s - data bits = 6", __FUNCTION__);
- break;
- case CS7:
- bits |= BITS_DATA_7;
- dbg("%s - data bits = 7", __FUNCTION__);
- break;
- case CS8:
- bits |= BITS_DATA_8;
- dbg("%s - data bits = 8", __FUNCTION__);
- break;
- /*case CS9:
- bits |= BITS_DATA_9;
- dbg("%s - data bits = 9", __FUNCTION__);
- break;*/
- default:
- dev_err(&port->dev, "cp210x driver does not "
+ case CS5:
+ bits |= BITS_DATA_5;
+ dbg("%s - data bits = 5", __func__);
+ break;
+ case CS6:
+ bits |= BITS_DATA_6;
+ dbg("%s - data bits = 6", __func__);
+ break;
+ case CS7:
+ bits |= BITS_DATA_7;
+ dbg("%s - data bits = 7", __func__);
+ break;
+ case CS8:
+ bits |= BITS_DATA_8;
+ dbg("%s - data bits = 8", __func__);
+ break;
+ /*case CS9:
+ bits |= BITS_DATA_9;
+ dbg("%s - data bits = 9", __func__);
+ break;*/
+ default:
+ dbg("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, CP2101_BITS, &bits, 2))
- dev_err(&port->dev, "Number of data bits requested "
+ if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
+ dbg("Number of data bits requested "
"not supported by device\n");
}
if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) {
- cp210x_get_config(port, CP2101_BITS, &bits, 2);
+ cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
bits &= ~BITS_PARITY_MASK;
if (cflag & PARENB) {
if (cflag & PARODD) {
bits |= BITS_PARITY_ODD;
- dbg("%s - parity = ODD", __FUNCTION__);
+ dbg("%s - parity = ODD", __func__);
} else {
bits |= BITS_PARITY_EVEN;
- dbg("%s - parity = EVEN", __FUNCTION__);
+ dbg("%s - parity = EVEN", __func__);
}
}
- if (cp210x_set_config(port, CP2101_BITS, &bits, 2))
- dev_err(&port->dev, "Parity mode not supported "
+ if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
+ dbg("Parity mode not supported "
"by device\n");
}
if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
- cp210x_get_config(port, CP2101_BITS, &bits, 2);
+ cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
bits &= ~BITS_STOP_MASK;
if (cflag & CSTOPB) {
bits |= BITS_STOP_2;
- dbg("%s - stop bits = 2", __FUNCTION__);
+ dbg("%s - stop bits = 2", __func__);
} else {
bits |= BITS_STOP_1;
- dbg("%s - stop bits = 1", __FUNCTION__);
+ dbg("%s - stop bits = 1", __func__);
}
- if (cp210x_set_config(port, CP2101_BITS, &bits, 2))
- dev_err(&port->dev, "Number of stop bits requested "
+ if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
+ dbg("Number of stop bits requested "
"not supported by device\n");
}
if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
- cp210x_get_config(port, CP2101_MODEMCTL, modem_ctl, 16);
+ cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
- __FUNCTION__, modem_ctl[0], modem_ctl[1],
+ __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", __FUNCTION__);
+ dbg("%s - flow control = CRTSCTS", __func__);
} else {
modem_ctl[0] &= ~0x7B;
modem_ctl[0] |= 0x01;
modem_ctl[1] |= 0x40;
- dbg("%s - flow control = NONE", __FUNCTION__);
+ dbg("%s - flow control = NONE", __func__);
}
dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
- __FUNCTION__, modem_ctl[0], modem_ctl[1],
+ __func__, modem_ctl[0], modem_ctl[1],
modem_ctl[2], modem_ctl[3]);
- cp210x_set_config(port, CP2101_MODEMCTL, modem_ctl, 16);
+ cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16);
}
}
-static int cp210x_tiocmset(struct usb_serial_port *port, struct file *file,
+static int cp210x_tiocmset (struct tty_struct *tty, struct file *file,
+ unsigned int set, unsigned int clear)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ return cp210x_tiocmset_port(port, file, set, clear);
+}
+
+static int cp210x_tiocmset_port(struct usb_serial_port *port, struct file *file,
unsigned int set, unsigned int clear)
{
- int control = 0;
+ unsigned int control = 0;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (set & TIOCM_RTS) {
control |= CONTROL_RTS;
control |= CONTROL_WRITE_DTR;
}
- dbg("%s - control = 0x%.4x", __FUNCTION__, control);
-
- return cp210x_set_config(port, CP2101_CONTROL, &control, 2);
+ dbg("%s - control = 0x%.4x", __func__, control);
+ return cp210x_set_config(port, CP210X_SET_MHS, &control, 2);
}
-static int cp210x_tiocmget(struct usb_serial_port *port, struct file *file)
+static int cp210x_tiocmget (struct tty_struct *tty, struct file *file)
{
- int control, result;
+ struct usb_serial_port *port = tty->driver_data;
+ unsigned int control;
+ int result;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
- cp210x_get_config(port, CP2101_CONTROL, &control, 1);
+ cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1);
result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0)
|((control & CONTROL_RTS) ? TIOCM_RTS : 0)
|((control & CONTROL_RING)? TIOCM_RI : 0)
|((control & CONTROL_DCD) ? TIOCM_CD : 0);
- dbg("%s - control = 0x%.2x", __FUNCTION__, control);
+ dbg("%s - control = 0x%.2x", __func__, control);
return result;
}
-static void cp210x_break_ctl(struct usb_serial_port *port, int break_state)
+static void cp210x_break_ctl (struct tty_struct *tty, int break_state)
{
- int state;
+ struct usb_serial_port *port = tty->driver_data;
+ unsigned int state;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __func__, port->number);
if (break_state == 0)
state = BREAK_OFF;
else
state = BREAK_ON;
- dbg("%s - turning break %s", __FUNCTION__,
- state==BREAK_OFF ? "off" : "on");
- cp210x_set_config(port, CP2101_BREAK, &state, 2);
+ dbg("%s - turning break %s", __func__,
+ state == BREAK_OFF ? "off" : "on");
+ cp210x_set_config(port, CP210X_SET_BREAK, &state, 2);
}
static int cp210x_startup(struct usb_serial *serial)
{
- /* CP2101 buffers behave strangely unless device is reset */
+ /* cp210x buffers behave strangely unless device is reset */
usb_reset_device(serial->dev);
return 0;
}
-static void cp210x_shutdown(struct usb_serial *serial)
+static void cp210x_disconnect(struct usb_serial *serial)
{
int i;
- dbg("%s", __FUNCTION__);
+ dbg("%s", __func__);
/* Stop reads and writes on all ports */
- for (i = 0; i < serial->num_ports; ++i) {
+ for (i = 0; i < serial->num_ports; ++i)
cp210x_cleanup(serial->port[i]);
- }
}
static int __init cp210x_init(void)
}
/* Success */
- info(DRIVER_DESC " " DRIVER_VERSION);
+ printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+ DRIVER_DESC "\n");
return 0;
}
projects / cp210x.git / blobdiff