From: Peter Hurley <peter@hurleysoftware.com>
Date: Fri, 22 Nov 2013 18:06:11 +0000 (-0500)
Subject: staging/fwserial: Add Kconfig options for max ports
X-Git-Tag: firefly_0821_release~176^2~4543^2~46
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=87a5a0371b7356c99f16363b80107602f110fcda;p=firefly-linux-kernel-4.4.55.git

staging/fwserial: Add Kconfig options for max ports

Allow kernel configuration of max supported ports for
TTY-over-Firewire driver.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/fwserial/Kconfig b/drivers/staging/fwserial/Kconfig
index a0812d99136f..9c7c9267d52c 100644
--- a/drivers/staging/fwserial/Kconfig
+++ b/drivers/staging/fwserial/Kconfig
@@ -9,3 +9,23 @@ config FIREWIRE_SERIAL
 
 	  To compile this driver as a module, say M here:  the module will
 	  be called firewire-serial.
+
+if FIREWIRE_SERIAL
+
+config FWTTY_MAX_TOTAL_PORTS
+       int "Maximum number of serial ports supported"
+       default "64"
+       help
+          Set this to the maximum number of serial ports you want the
+	  firewire-serial driver to support.
+
+config FWTTY_MAX_CARD_PORTS
+       int "Maximum number of serial ports supported per adapter"
+       range 0 FWTTY_MAX_TOTAL_PORTS
+       default "32"
+       help
+          Set this to the maximum number of serial ports each firewire
+	  adapter supports. The actual number of serial ports registered
+	  is set with the module parameter "ttys".
+
+endif
diff --git a/drivers/staging/fwserial/fwserial.h b/drivers/staging/fwserial/fwserial.h
index eab85b49293c..54f7f9b9b212 100644
--- a/drivers/staging/fwserial/fwserial.h
+++ b/drivers/staging/fwserial/fwserial.h
@@ -291,8 +291,8 @@ struct fwtty_port {
 #define FREQ_BREAKS        (HZ / 50)
 
 /* Ports are allocated in blocks of num_ports for each fw_card */
-#define MAX_CARD_PORTS           32	/* max # of ports per card */
-#define MAX_TOTAL_PORTS          64	/* max # of ports total    */
+#define MAX_CARD_PORTS           CONFIG_FWTTY_MAX_CARD_PORTS
+#define MAX_TOTAL_PORTS          CONFIG_FWTTY_MAX_TOTAL_PORTS
 
 /* tuning parameters */
 #define FWTTY_PORT_TXFIFO_LEN	4096