[PATCH] Char: isicom, support higher rates

Add support for higher baud rates (coming from original isi driver).

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

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index eddb8d3a620e..07bc4a5cb1ef 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -183,7 +183,7 @@ static DEFINE_TIMER(tx, isicom_tx, 0, 0);
 /*   baud index mappings from linux defns to isi */
 
 static signed char linuxb_to_isib[] = {
-        -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19
+        -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 20, 21
 };
 
 struct  isi_board {
@@ -710,7 +710,8 @@ static void isicom_config_port(struct isi_port *port)
                  *  respectively.
                  */
 
-                if (baud < 1 || baud > 2)
+                /* 1,2,3,4 => 57.6, 115.2, 230, 460 kbps resp. */
+                if (baud < 1 || baud > 4)
                         port->tty->termios->c_cflag &= ~CBAUDEX;
                 else
                         baud += 15;
@@ -726,6 +727,10 @@ static void isicom_config_port(struct isi_port *port)
                         baud++; /*  57.6 Kbps */
                 if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
                         baud +=2; /*  115  Kbps */
+                if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+                        baud += 3; /* 230 kbps*/
+                if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+                        baud += 4; /* 460 kbps*/
         }
         if (linuxb_to_isib[baud] == -1) {
                 /* hang up */