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path: root/packages/linux/linux-ezx-2.6.24/patches/mux-fix-tty-driver.patch
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Diffstat (limited to 'packages/linux/linux-ezx-2.6.24/patches/mux-fix-tty-driver.patch')
-rw-r--r--packages/linux/linux-ezx-2.6.24/patches/mux-fix-tty-driver.patch125
1 files changed, 125 insertions, 0 deletions
diff --git a/packages/linux/linux-ezx-2.6.24/patches/mux-fix-tty-driver.patch b/packages/linux/linux-ezx-2.6.24/patches/mux-fix-tty-driver.patch
new file mode 100644
index 0000000000..2e1aabd952
--- /dev/null
+++ b/packages/linux/linux-ezx-2.6.24/patches/mux-fix-tty-driver.patch
@@ -0,0 +1,125 @@
+Index: linux-2.6.20.7/drivers/char/ts0710_mux.c
+===================================================================
+--- linux-2.6.20.7.orig/drivers/char/ts0710_mux.c 2007-04-22 10:51:31.000000000 +0200
++++ linux-2.6.20.7/drivers/char/ts0710_mux.c 2007-04-22 10:53:05.000000000 +0200
+@@ -241,7 +241,8 @@
+ static volatile __u8 mux_recv_info_flags[NR_MUXS];
+ static mux_recv_struct *mux_recv_queue = NULL;
+
+-static struct tty_driver mux_driver;
++// Local for 2.6?
++static struct tty_driver *mux_driver;
+
+ #ifdef USB_FOR_MUX
+ #define COMM_FOR_MUX_DRIVER usb_for_mux_driver
+@@ -3007,6 +3008,7 @@
+ #else
+ mux_tty[line]++;
+ dlci = tty2dlci[line];
++ mux_table[line] = tty;
+
+ /* if( dlci == 1 ) { */
+ /* Open server channel 0 first */
+@@ -3087,6 +3089,7 @@
+ }
+ }
+
++
+ retval = 0;
+ #endif
+ out:
+@@ -3894,43 +3897,50 @@
+ INIT_WORK(&receive_tqueue, receive_worker, NULL);
+ INIT_WORK(&post_recv_tqueue, post_recv_worker, NULL);
+
+- memset(&mux_driver, 0, sizeof(struct tty_driver));
+- memset(&mux_tty, 0, sizeof(mux_tty));
+- mux_driver.magic = TTY_DRIVER_MAGIC;
+- mux_driver.driver_name = "ts0710mux";
+- mux_driver.name = "ts0710mux";
+- mux_driver.major = TS0710MUX_MAJOR;
+- mux_driver.minor_start = TS0710MUX_MINOR_START;
+- mux_driver.num = NR_MUXS;
+- mux_driver.type = TTY_DRIVER_TYPE_SERIAL;
+- mux_driver.subtype = SERIAL_TYPE_NORMAL;
+- mux_driver.init_termios = tty_std_termios;
+- mux_driver.init_termios.c_iflag = 0;
+- mux_driver.init_termios.c_oflag = 0;
+- mux_driver.init_termios.c_cflag = B38400 | CS8 | CREAD;
+- mux_driver.init_termios.c_lflag = 0;
+- mux_driver.flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW;
+-
+- mux_driver.ttys = mux_table;
+- mux_driver.termios = mux_termios;
+- mux_driver.termios_locked = mux_termios_locked;
++ mux_driver = alloc_tty_driver(NR_MUXS);
++ if (!mux_driver)
++ return -ENOMEM;
++
++ mux_driver->owner = THIS_MODULE;
++ mux_driver->driver_name = "ts0710mux";
++ mux_driver->name = "mux";
++ mux_driver->devfs_name = "mux";
++ mux_driver->major = TS0710MUX_MAJOR;
++ mux_driver->minor_start = TS0710MUX_MINOR_START;
++ mux_driver->type = TTY_DRIVER_TYPE_SERIAL;
++ mux_driver->subtype = SERIAL_TYPE_NORMAL;
++ mux_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW;
++
++ mux_driver->init_termios = tty_std_termios;
++ mux_driver->init_termios.c_iflag = 0;
++ mux_driver->init_termios.c_oflag = 0;
++ mux_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
++ mux_driver->init_termios.c_lflag = 0;
++
++// mux_driver.ttys = mux_table;
++ mux_driver->termios = mux_termios;
++ mux_driver->termios_locked = mux_termios_locked;
+ // mux_driver.driver_state = mux_state;
+- mux_driver.other = NULL;
++ mux_driver->other = NULL;
+
+- mux_driver.open = mux_open;
+- mux_driver.close = mux_close;
+- mux_driver.write = mux_write;
+- mux_driver.write_room = mux_write_room;
+- mux_driver.flush_buffer = mux_flush_buffer;
+- mux_driver.chars_in_buffer = mux_chars_in_buffer;
+- mux_driver.throttle = mux_throttle;
+- mux_driver.unthrottle = mux_unthrottle;
+- mux_driver.ioctl = mux_ioctl;
+- mux_driver.owner = THIS_MODULE;
++ mux_driver->open = mux_open;
++ mux_driver->close = mux_close;
++ mux_driver->write = mux_write;
++ mux_driver->write_room = mux_write_room;
++ mux_driver->flush_buffer = mux_flush_buffer;
++ mux_driver->chars_in_buffer = mux_chars_in_buffer;
++ mux_driver->throttle = mux_throttle;
++ mux_driver->unthrottle = mux_unthrottle;
++ mux_driver->ioctl = mux_ioctl;
+
+- if (tty_register_driver(&mux_driver))
++ // FIXME: No panic() here
++ if (tty_register_driver(mux_driver))
+ panic("Couldn't register mux driver");
+
++ for (j=0; j<NR_MUXS; j++)
++ tty_register_device(mux_driver, j, NULL);
++
++
+ COMM_MUX_DISPATCHER = mux_dispatcher;
+ COMM_MUX_SENDER = mux_sender;
+
+@@ -3964,7 +3974,10 @@
+ mux_recv_info[j] = 0;
+ }
+
+- if (tty_unregister_driver(&mux_driver))
++ for (j=0; j<NR_MUXS; j++)
++ tty_unregister_device(mux_driver, j);
++
++ if (tty_unregister_driver(mux_driver))
+ panic("Couldn't unregister mux driver");
+ }
+