-/*
+/*
* Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#include "user_util.h"
#include "user.h"
#include "os.h"
+#include "um_malloc.h"
struct tty_chan {
char *dev;
struct termios tt;
};
-void *tty_chan_init(char *str, int device, struct chan_opts *opts)
+static void *tty_chan_init(char *str, int device, const struct chan_opts *opts)
{
struct tty_chan *data;
if(*str != ':'){
printk("tty_init : channel type 'tty' must specify "
"a device\n");
- return(NULL);
+ return NULL;
}
str++;
- data = um_kmalloc(sizeof(*data));
- if(data == NULL)
- return(NULL);
+ data = um_kmalloc(sizeof(*data));
+ if(data == NULL)
+ return NULL;
*data = ((struct tty_chan) { .dev = str,
.raw = opts->raw });
-
- return(data);
+
+ return data;
}
-int tty_open(int input, int output, int primary, void *d, char **dev_out)
+static int tty_open(int input, int output, int primary, void *d,
+ char **dev_out)
{
struct tty_chan *data = d;
int fd, err;
fd = os_open_file(data->dev, of_set_rw(OPENFLAGS(), input, output), 0);
- if(fd < 0) return(fd);
+ if(fd < 0)
+ return fd;
+
if(data->raw){
CATCH_EINTR(err = tcgetattr(fd, &data->tt));
if(err)
- return(err);
+ return err;
err = raw(fd);
if(err)
- return(err);
+ return err;
}
*dev_out = data->dev;
- return(fd);
+ return fd;
}
-int tty_console_write(int fd, const char *buf, int n, void *d)
-{
- struct tty_chan *data = d;
-
- return(generic_console_write(fd, buf, n, &data->tt));
-}
-
-struct chan_ops tty_ops = {
+const struct chan_ops tty_ops = {
.type = "tty",
.init = tty_chan_init,
.open = tty_open,
.close = generic_close,
.read = generic_read,
.write = generic_write,
- .console_write = tty_console_write,
+ .console_write = generic_console_write,
.window_size = generic_window_size,
.free = generic_free,
.winch = 0,
};
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */