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Diffstat (limited to 'drivers/usb/serial/ark3116.c')
-rw-r--r--drivers/usb/serial/ark3116.c233
1 files changed, 130 insertions, 103 deletions
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 970d9ef0a7a5..ca52f12f0e24 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -1,4 +1,7 @@
/*
+ * Copyright (C) 2006
+ * Simon Schulz (ark3116_driver <at> auctionant.de)
+ *
* ark3116
* - implements a driver for the arkmicro ark3116 chipset (vendor=0x6547,
* productid=0x0232) (used in a datacable called KQ-U8A)
@@ -8,8 +11,6 @@
*
* - based on logs created by usbsnoopy
*
- * Author : Simon Schulz [ark3116_driver<AT>auctionant.de]
- *
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
@@ -22,6 +23,8 @@
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
+#include <linux/serial.h>
+#include <asm/uaccess.h>
static int debug;
@@ -43,10 +46,10 @@ static inline void ARK3116_SND(struct usb_serial *serial, int seq,
{
int result;
result = usb_control_msg(serial->dev,
- usb_sndctrlpipe(serial->dev,0),
+ usb_sndctrlpipe(serial->dev, 0),
request, requesttype, value, index,
- NULL,0x00, 1000);
- dbg("%03d > ok",seq);
+ NULL, 0x00, 1000);
+ dbg("%03d > ok", seq);
}
static inline void ARK3116_RCV(struct usb_serial *serial, int seq,
@@ -56,27 +59,25 @@ static inline void ARK3116_RCV(struct usb_serial *serial, int seq,
{
int result;
result = usb_control_msg(serial->dev,
- usb_rcvctrlpipe(serial->dev,0),
- request, requesttype, value, index,
- buf, 0x0000001, 1000);
+ usb_rcvctrlpipe(serial->dev, 0),
+ request, requesttype, value, index,
+ buf, 0x0000001, 1000);
if (result)
- dbg("%03d < %d bytes [0x%02X]",seq, result, buf[0]);
+ dbg("%03d < %d bytes [0x%02X]", seq, result, buf[0]);
else
dbg("%03d < 0 bytes", seq);
}
-
static inline void ARK3116_RCV_QUIET(struct usb_serial *serial,
__u8 request, __u8 requesttype,
__u16 value, __u16 index, char *buf)
{
usb_control_msg(serial->dev,
- usb_rcvctrlpipe(serial->dev,0),
+ usb_rcvctrlpipe(serial->dev, 0),
request, requesttype, value, index,
buf, 0x0000001, 1000);
}
-
static int ark3116_attach(struct usb_serial *serial)
{
char *buf;
@@ -84,10 +85,10 @@ static int ark3116_attach(struct usb_serial *serial)
int i;
for (i = 0; i < serial->num_ports; ++i) {
- priv = kmalloc (sizeof (struct ark3116_private), GFP_KERNEL);
+ priv = kmalloc(sizeof (struct ark3116_private), GFP_KERNEL);
if (!priv)
goto cleanup;
- memset (priv, 0x00, sizeof (struct ark3116_private));
+ memset(priv, 0x00, sizeof (struct ark3116_private));
spin_lock_init(&priv->lock);
usb_set_serial_port_data(serial->port[i], priv);
@@ -95,63 +96,62 @@ static int ark3116_attach(struct usb_serial *serial)
buf = kmalloc(1, GFP_KERNEL);
if (!buf) {
- dbg("error kmalloc -> out of mem ?");
+ dbg("error kmalloc -> out of mem?");
goto cleanup;
}
/* 3 */
- ARK3116_SND(serial, 3,0xFE,0x40,0x0008,0x0002);
- ARK3116_SND(serial, 4,0xFE,0x40,0x0008,0x0001);
- ARK3116_SND(serial, 5,0xFE,0x40,0x0000,0x0008);
- ARK3116_SND(serial, 6,0xFE,0x40,0x0000,0x000B);
+ ARK3116_SND(serial, 3, 0xFE, 0x40, 0x0008, 0x0002);
+ ARK3116_SND(serial, 4, 0xFE, 0x40, 0x0008, 0x0001);
+ ARK3116_SND(serial, 5, 0xFE, 0x40, 0x0000, 0x0008);
+ ARK3116_SND(serial, 6, 0xFE, 0x40, 0x0000, 0x000B);
/* <-- seq7 */
- ARK3116_RCV(serial, 7,0xFE,0xC0,0x0000,0x0003, 0x00, buf);
- ARK3116_SND(serial, 8,0xFE,0x40,0x0080,0x0003);
- ARK3116_SND(serial, 9,0xFE,0x40,0x001A,0x0000);
- ARK3116_SND(serial,10,0xFE,0x40,0x0000,0x0001);
- ARK3116_SND(serial,11,0xFE,0x40,0x0000,0x0003);
+ ARK3116_RCV(serial, 7, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf);
+ ARK3116_SND(serial, 8, 0xFE, 0x40, 0x0080, 0x0003);
+ ARK3116_SND(serial, 9, 0xFE, 0x40, 0x001A, 0x0000);
+ ARK3116_SND(serial, 10, 0xFE, 0x40, 0x0000, 0x0001);
+ ARK3116_SND(serial, 11, 0xFE, 0x40, 0x0000, 0x0003);
/* <-- seq12 */
- ARK3116_RCV(serial,12,0xFE,0xC0,0x0000,0x0004, 0x00, buf);
- ARK3116_SND(serial,13,0xFE,0x40,0x0000,0x0004);
+ ARK3116_RCV(serial, 12, 0xFE, 0xC0, 0x0000, 0x0004, 0x00, buf);
+ ARK3116_SND(serial, 13, 0xFE, 0x40, 0x0000, 0x0004);
/* 14 */
- ARK3116_RCV(serial,14,0xFE,0xC0,0x0000,0x0004, 0x00, buf);
- ARK3116_SND(serial,15,0xFE,0x40,0x0000,0x0004);
+ ARK3116_RCV(serial, 14, 0xFE, 0xC0, 0x0000, 0x0004, 0x00, buf);
+ ARK3116_SND(serial, 15, 0xFE, 0x40, 0x0000, 0x0004);
/* 16 */
- ARK3116_RCV(serial,16,0xFE,0xC0,0x0000,0x0004, 0x00, buf);
+ ARK3116_RCV(serial, 16, 0xFE, 0xC0, 0x0000, 0x0004, 0x00, buf);
/* --> seq17 */
- ARK3116_SND(serial,17,0xFE,0x40,0x0001,0x0004);
+ ARK3116_SND(serial, 17, 0xFE, 0x40, 0x0001, 0x0004);
/* <-- seq18 */
- ARK3116_RCV(serial,18,0xFE,0xC0,0x0000,0x0004, 0x01, buf);
+ ARK3116_RCV(serial, 18, 0xFE, 0xC0, 0x0000, 0x0004, 0x01, buf);
/* --> seq19 */
- ARK3116_SND(serial,19,0xFE,0x40,0x0003,0x0004);
-
+ ARK3116_SND(serial, 19, 0xFE, 0x40, 0x0003, 0x0004);
/* <-- seq20 */
- /* seems like serial port status info (RTS, CTS,...) */
- /* returns modem control line status ?! */
- ARK3116_RCV(serial,20,0xFE,0xC0,0x0000,0x0006, 0xFF, buf);
-
- /* set 9600 baud & do some init ?! */
- ARK3116_SND(serial,147,0xFE,0x40,0x0083,0x0003);
- ARK3116_SND(serial,148,0xFE,0x40,0x0038,0x0000);
- ARK3116_SND(serial,149,0xFE,0x40,0x0001,0x0001);
- ARK3116_SND(serial,150,0xFE,0x40,0x0003,0x0003);
- ARK3116_RCV(serial,151,0xFE,0xC0,0x0000,0x0004,0x03, buf);
- ARK3116_SND(serial,152,0xFE,0x40,0x0000,0x0003);
- ARK3116_RCV(serial,153,0xFE,0xC0,0x0000,0x0003,0x00, buf);
- ARK3116_SND(serial,154,0xFE,0x40,0x0003,0x0003);
+ /* seems like serial port status info (RTS, CTS, ...) */
+ /* returns modem control line status?! */
+ ARK3116_RCV(serial, 20, 0xFE, 0xC0, 0x0000, 0x0006, 0xFF, buf);
+
+ /* set 9600 baud & do some init?! */
+ ARK3116_SND(serial, 147, 0xFE, 0x40, 0x0083, 0x0003);
+ ARK3116_SND(serial, 148, 0xFE, 0x40, 0x0038, 0x0000);
+ ARK3116_SND(serial, 149, 0xFE, 0x40, 0x0001, 0x0001);
+ ARK3116_SND(serial, 150, 0xFE, 0x40, 0x0003, 0x0003);
+ ARK3116_RCV(serial, 151, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf);
+ ARK3116_SND(serial, 152, 0xFE, 0x40, 0x0000, 0x0003);
+ ARK3116_RCV(serial, 153, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf);
+ ARK3116_SND(serial, 154, 0xFE, 0x40, 0x0003, 0x0003);
kfree(buf);
- return(0);
+ return 0;
cleanup:
- for (--i; i>=0; --i)
+ for (--i; i >= 0; --i)
usb_set_serial_port_data(serial->port[i], NULL);
return -ENOMEM;
}
@@ -180,7 +180,8 @@ static void ark3116_set_termios(struct usb_serial_port *port,
spin_lock_irqsave(&priv->lock, flags);
if (!priv->termios_initialized) {
*(port->tty->termios) = tty_std_termios;
- port->tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ port->tty->termios->c_cflag = B9600 | CS8
+ | CREAD | HUPCL | CLOCAL;
priv->termios_initialized = 1;
}
spin_unlock_irqrestore(&priv->lock, flags);
@@ -204,8 +205,8 @@ static void ark3116_set_termios(struct usb_serial_port *port,
}
/* set data bit count (8/7/6/5) */
- if (cflag & CSIZE){
- switch (cflag & CSIZE){
+ if (cflag & CSIZE) {
+ switch (cflag & CSIZE) {
case CS5:
config |= 0x00;
dbg("setting CS5");
@@ -219,7 +220,8 @@ static void ark3116_set_termios(struct usb_serial_port *port,
dbg("setting CS7");
break;
default:
- err ("CSIZE was set but not CS5-CS8, using CS8!");
+ err("CSIZE was set but not CS5-CS8, using CS8!");
+ /* fall through */
case CS8:
config |= 0x03;
dbg("setting CS8");
@@ -227,8 +229,8 @@ static void ark3116_set_termios(struct usb_serial_port *port,
}
}
- /* set parity (NONE,EVEN,ODD) */
- if (cflag & PARENB){
+ /* set parity (NONE/EVEN/ODD) */
+ if (cflag & PARENB) {
if (cflag & PARODD) {
config |= 0x08;
dbg("setting parity to ODD");
@@ -240,20 +242,19 @@ static void ark3116_set_termios(struct usb_serial_port *port,
dbg("setting parity to NONE");
}
- /* SET STOPBIT (1/2) */
+ /* set stop bit (1/2) */
if (cflag & CSTOPB) {
config |= 0x04;
- dbg ("setting 2 stop bits");
+ dbg("setting 2 stop bits");
} else {
- dbg ("setting 1 stop bit");
+ dbg("setting 1 stop bit");
}
-
- /* set baudrate: */
+ /* set baudrate */
baud = 0;
- switch (cflag & CBAUD){
+ switch (cflag & CBAUD) {
case B0:
- err("can't set 0baud, using 9600 instead");
+ err("can't set 0 baud, using 9600 instead");
break;
case B75: baud = 75; break;
case B150: baud = 150; break;
@@ -285,38 +286,40 @@ static void ark3116_set_termios(struct usb_serial_port *port,
*/
if (baud == 460800)
/* strange, for 460800 the formula is wrong
- * (dont use round(), then 9600baud is wrong) */
+ * if using round() then 9600baud is wrong) */
ark3116_baud = 7;
else
ark3116_baud = 3000000 / baud;
/* ? */
- ARK3116_RCV(serial,0,0xFE,0xC0,0x0000,0x0003, 0x03, buf);
+ ARK3116_RCV(serial, 0, 0xFE, 0xC0, 0x0000, 0x0003, 0x03, buf);
+
/* offset = buf[0]; */
/* offset = 0x03; */
- /* dbg("using 0x%04X as target for 0x0003:",0x0080+offset); */
-
+ /* dbg("using 0x%04X as target for 0x0003:", 0x0080 + offset); */
/* set baudrate */
- dbg("setting baudrate to %d (->reg=%d)",baud,ark3116_baud);
- ARK3116_SND(serial,147,0xFE,0x40,0x0083,0x0003);
- ARK3116_SND(serial,148,0xFE,0x40,(ark3116_baud & 0x00FF) ,0x0000);
- ARK3116_SND(serial,149,0xFE,0x40,(ark3116_baud & 0xFF00)>>8,0x0001);
- ARK3116_SND(serial,150,0xFE,0x40,0x0003,0x0003);
+ dbg("setting baudrate to %d (->reg=%d)", baud, ark3116_baud);
+ ARK3116_SND(serial, 147, 0xFE, 0x40, 0x0083, 0x0003);
+ ARK3116_SND(serial, 148, 0xFE, 0x40,
+ (ark3116_baud & 0x00FF), 0x0000);
+ ARK3116_SND(serial, 149, 0xFE, 0x40,
+ (ark3116_baud & 0xFF00) >> 8, 0x0001);
+ ARK3116_SND(serial, 150, 0xFE, 0x40, 0x0003, 0x0003);
/* ? */
- ARK3116_RCV(serial,151,0xFE,0xC0,0x0000,0x0004,0x03, buf);
- ARK3116_SND(serial,152,0xFE,0x40,0x0000,0x0003);
+ ARK3116_RCV(serial, 151, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf);
+ ARK3116_SND(serial, 152, 0xFE, 0x40, 0x0000, 0x0003);
/* set data bit count, stop bit count & parity: */
dbg("updating bit count, stop bit or parity (cfg=0x%02X)", config);
- ARK3116_RCV(serial,153,0xFE,0xC0,0x0000,0x0003,0x00, buf);
- ARK3116_SND(serial,154,0xFE,0x40,config,0x0003);
+ ARK3116_RCV(serial, 153, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf);
+ ARK3116_SND(serial, 154, 0xFE, 0x40, config, 0x0003);
if (cflag & CRTSCTS)
- dbg("CRTSCTS not supported by chipset ?!");
+ dbg("CRTSCTS not supported by chipset?!");
- /* TEST ARK3116_SND(154,0xFE,0x40,0xFFFF, 0x0006); */
+ /* TEST ARK3116_SND(154, 0xFE, 0x40, 0xFFFF, 0x0006); */
kfree(buf);
return;
@@ -329,11 +332,11 @@ static int ark3116_open(struct usb_serial_port *port, struct file *filp)
char *buf;
int result = 0;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dbg("%s - port %d", __FUNCTION__, port->number);
buf = kmalloc(1, GFP_KERNEL);
if (!buf) {
- dbg("error kmalloc -> out of mem ?");
+ dbg("error kmalloc -> out of mem?");
return -ENOMEM;
}
@@ -342,44 +345,68 @@ static int ark3116_open(struct usb_serial_port *port, struct file *filp)
return result;
/* open */
- ARK3116_RCV(serial,111,0xFE,0xC0,0x0000,0x0003, 0x02, buf);
+ ARK3116_RCV(serial, 111, 0xFE, 0xC0, 0x0000, 0x0003, 0x02, buf);
- ARK3116_SND(serial,112,0xFE,0x40,0x0082,0x0003);
- ARK3116_SND(serial,113,0xFE,0x40,0x001A,0x0000);
- ARK3116_SND(serial,114,0xFE,0x40,0x0000,0x0001);
- ARK3116_SND(serial,115,0xFE,0x40,0x0002,0x0003);
+ ARK3116_SND(serial, 112, 0xFE, 0x40, 0x0082, 0x0003);
+ ARK3116_SND(serial, 113, 0xFE, 0x40, 0x001A, 0x0000);
+ ARK3116_SND(serial, 114, 0xFE, 0x40, 0x0000, 0x0001);
+ ARK3116_SND(serial, 115, 0xFE, 0x40, 0x0002, 0x0003);
- ARK3116_RCV(serial,116,0xFE,0xC0,0x0000,0x0004, 0x03, buf);
- ARK3116_SND(serial,117,0xFE,0x40,0x0002,0x0004);
+ ARK3116_RCV(serial, 116, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf);
+ ARK3116_SND(serial, 117, 0xFE, 0x40, 0x0002, 0x0004);
- ARK3116_RCV(serial,118,0xFE,0xC0,0x0000,0x0004, 0x02, buf);
- ARK3116_SND(serial,119,0xFE,0x40,0x0000,0x0004);
+ ARK3116_RCV(serial, 118, 0xFE, 0xC0, 0x0000, 0x0004, 0x02, buf);
+ ARK3116_SND(serial, 119, 0xFE, 0x40, 0x0000, 0x0004);
- ARK3116_RCV(serial,120,0xFE,0xC0,0x0000,0x0004, 0x00, buf);
+ ARK3116_RCV(serial, 120, 0xFE, 0xC0, 0x0000, 0x0004, 0x00, buf);
- ARK3116_SND(serial,121,0xFE,0x40,0x0001,0x0004);
+ ARK3116_SND(serial, 121, 0xFE, 0x40, 0x0001, 0x0004);
- ARK3116_RCV(serial,122,0xFE,0xC0,0x0000,0x0004, 0x01, buf);
+ ARK3116_RCV(serial, 122, 0xFE, 0xC0, 0x0000, 0x0004, 0x01, buf);
- ARK3116_SND(serial,123,0xFE,0x40,0x0003,0x0004);
+ ARK3116_SND(serial, 123, 0xFE, 0x40, 0x0003, 0x0004);
- /* returns different values (control lines ?!) */
- ARK3116_RCV(serial,124,0xFE,0xC0,0x0000,0x0006, 0xFF, buf);
+ /* returns different values (control lines?!) */
+ ARK3116_RCV(serial, 124, 0xFE, 0xC0, 0x0000, 0x0006, 0xFF, buf);
- /* initialise termios: */
+ /* initialise termios */
if (port->tty)
ark3116_set_termios(port, &tmp_termios);
kfree(buf);
return result;
-
}
static int ark3116_ioctl(struct usb_serial_port *port, struct file *file,
unsigned int cmd, unsigned long arg)
{
- dbg("ioctl not supported yet...");
+ struct serial_struct serstruct;
+ void __user *user_arg = (void __user *)arg;
+
+ switch (cmd) {
+ case TIOCGSERIAL:
+ /* XXX: Some of these values are probably wrong. */
+ memset(&serstruct, 0, sizeof (serstruct));
+ serstruct.type = PORT_16654;
+ serstruct.line = port->serial->minor;
+ serstruct.port = port->number;
+ serstruct.custom_divisor = 0;
+ serstruct.baud_base = 460800;
+
+ if (copy_to_user(user_arg, &serstruct, sizeof (serstruct)))
+ return -EFAULT;
+
+ return 0;
+ case TIOCSSERIAL:
+ if (copy_from_user(&serstruct, user_arg, sizeof (serstruct)))
+ return -EFAULT;
+ return 0;
+ default:
+ dbg("%s cmd 0x%04x not supported", __FUNCTION__, cmd);
+ break;
+ }
+
return -ENOIOCTLCMD;
}
@@ -389,7 +416,7 @@ static int ark3116_tiocmget(struct usb_serial_port *port, struct file *file)
char *buf;
char temp;
- /* seems like serial port status info (RTS, CTS,...) is stored
+ /* seems like serial port status info (RTS, CTS, ...) is stored
* in reg(?) 0x0006
* pcb connection point 11 = GND -> sets bit4 of response
* pcb connection point 7 = GND -> sets bit6 of response
@@ -401,16 +428,16 @@ static int ark3116_tiocmget(struct usb_serial_port *port, struct file *file)
return -ENOMEM;
}
- /* read register: */
- ARK3116_RCV_QUIET(serial,0xFE,0xC0,0x0000,0x0006,buf);
+ /* read register */
+ ARK3116_RCV_QUIET(serial, 0xFE, 0xC0, 0x0000, 0x0006, buf);
temp = buf[0];
kfree(buf);
- /* i do not really know if bit4=CTS and bit6=DSR... was just a
- * quick guess !!
+ /* i do not really know if bit4=CTS and bit6=DSR... just a
+ * quick guess!
*/
- return (temp & (1<<4) ? TIOCM_CTS : 0) |
- (temp & (1<<6) ? TIOCM_DSR : 0);
+ return (temp & (1<<4) ? TIOCM_CTS : 0)
+ | (temp & (1<<6) ? TIOCM_DSR : 0);
}
static struct usb_driver ark3116_driver = {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 03:12:35 +0000