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 = {