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staging/fwserial: Add Kconfig options for max ports

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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>
This commit is contained in:
Peter Hurley
2013-11-22 13:06:11 -05:00
committed by Greg Kroah-Hartman
parent 49bb8405b4
commit 87a5a0371b
2 changed files with 22 additions and 2 deletions
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20
drivers/staging/fwserial/Kconfig
View File

@@ -9,3 +9,23 @@ config FIREWIRE_SERIAL
To compile this driver as a module, say M here: the module will To compile this driver as a module, say M here: the module will
be called firewire-serial. 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

4
drivers/staging/fwserial/fwserial.h
View File

@@ -291,8 +291,8 @@ struct fwtty_port {
#define FREQ_BREAKS (HZ / 50) #define FREQ_BREAKS (HZ / 50)
/* Ports are allocated in blocks of num_ports for each fw_card */ /* Ports are allocated in blocks of num_ports for each fw_card */
#define MAX_CARD_PORTS 32 /* max # of ports per card */ #define MAX_CARD_PORTS CONFIG_FWTTY_MAX_CARD_PORTS
#define MAX_TOTAL_PORTS 64 /* max # of ports total */ #define MAX_TOTAL_PORTS CONFIG_FWTTY_MAX_TOTAL_PORTS
/* tuning parameters */ /* tuning parameters */
#define FWTTY_PORT_TXFIFO_LEN 4096 #define FWTTY_PORT_TXFIFO_LEN 4096