Char: mxser, add support for CP-114UL

Add new card (0x1393:0x1143) support added in 1.11 original driver, also
allow rate change in set_serial_info ioctl (as per 1.11 too).

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 19 insertions, 10 deletions

diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index dd1b0ab4b310..68c2e9234691 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -1,8 +1,8 @@
 /*
  *          mxser.c  -- MOXA Smartio/Industio family multiport serial driver.
  *
- *      Copyright (C) 1999-2006  Moxa Technologies (support@moxa.com.tw).
- *      Copyright (C) 2006-2007  Jiri Slaby <jirislaby@gmail.com>
+ *      Copyright (C) 1999-2006  Moxa Technologies (support@moxa.com).
+ *      Copyright (C) 2006-2008  Jiri Slaby <jirislaby@gmail.com>
  *
  *      This code is loosely based on the 1.8 moxa driver which is based on
  *      Linux serial driver, written by Linus Torvalds, Theodore T'so and
@@ -47,7 +47,7 @@
 
 #include "mxser.h"
 
-#define MXSER_VERSION   "2.0.2"         /* 1.10 */
+#define MXSER_VERSION   "2.0.3"         /* 1.11 */
 #define MXSERMAJOR       174
 #define MXSERCUMAJOR     175
 
@@ -73,6 +73,7 @@
 
 #define PCI_DEVICE_ID_CB108     0x1080
 #define PCI_DEVICE_ID_CB114     0x1142
+#define PCI_DEVICE_ID_CP114UL   0x1143
 #define PCI_DEVICE_ID_CB134I    0x1341
 #define PCI_DEVICE_ID_CP138U    0x1380
 #define PCI_DEVICE_ID_POS104UL  0x1044
@@ -140,7 +141,8 @@ static const struct mxser_cardinfo mxser_cards[] = {
 /*25*/  { "CB-114 series",      4, },
         { "CB-134I series",     4, },
         { "CP-138U series",     8, },
-        { "POS-104UL series",   4, }
+        { "POS-104UL series",   4, },
+        { "CP-114UL series",    4, }
 };
 
 /* driver_data correspond to the lines in the structure above
@@ -169,6 +171,7 @@ static struct pci_device_id mxser_pcibrds[] = {
         { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB134I),      .driver_data = 26 },
         { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP138U),      .driver_data = 27 },
         { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_POS104UL),    .driver_data = 28 },
+        { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP114UL),     .driver_data = 29 },
         { }
 };
 MODULE_DEVICE_TABLE(pci, mxser_pcibrds);
@@ -1188,20 +1191,19 @@ static int mxser_set_serial_info(struct mxser_port *info,
                 struct serial_struct __user *new_info)
 {
         struct serial_struct new_serial;
+        speed_t baud;
         unsigned long sl_flags;
         unsigned int flags;
         int retval = 0;
 
         if (!new_info || !info->ioaddr)
-                return -EFAULT;
+                return -ENODEV;
         if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
                 return -EFAULT;
 
-        if ((new_serial.irq != info->board->irq) ||
-                        (new_serial.port != info->ioaddr) ||
-                        (new_serial.custom_divisor != info->custom_divisor) ||
-                        (new_serial.baud_base != info->baud_base))
-                return -EPERM;
+        if (new_serial.irq != info->board->irq ||
+                        new_serial.port != info->ioaddr)
+                return -EINVAL;
 
         flags = info->flags & ASYNC_SPD_MASK;
 
@@ -1224,6 +1226,13 @@ static int mxser_set_serial_info(struct mxser_port *info,
                 info->tty->low_latency =
                                 (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
                 info->tty->low_latency = 0;
+                if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
+                                (new_serial.baud_base != info->baud_base ||
+                                new_serial.custom_divisor !=
+                                info->custom_divisor)) {
+                        baud = new_serial.baud_base / new_serial.custom_divisor;
+                        tty_encode_baud_rate(info->tty, baud, baud);
+                }
         }
 
         info->type = new_serial.type;