diff options
Diffstat (limited to 'arch/um/drivers/fd.c')
| -rw-r--r-- | arch/um/drivers/fd.c | 83 |
1 files changed, 35 insertions, 48 deletions
diff --git a/arch/um/drivers/fd.c b/arch/um/drivers/fd.c index f0b888f66e0..a13a427b996 100644 --- a/arch/um/drivers/fd.c +++ b/arch/um/drivers/fd.c @@ -1,16 +1,16 @@ -/* - * Copyright (C) 2001 Jeff Dike (jdike@karaya.com) +/* + * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) * Licensed under the GPL */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> -#include <termios.h> #include <errno.h> -#include "user.h" -#include "user_util.h" +#include <termios.h> #include "chan_user.h" +#include <os.h> +#include <um_malloc.h> struct fd_chan { int fd; @@ -19,28 +19,32 @@ struct fd_chan { char str[sizeof("1234567890\0")]; }; -static void *fd_init(char *str, int device, struct chan_opts *opts) +static void *fd_init(char *str, int device, const struct chan_opts *opts) { struct fd_chan *data; char *end; int n; - if(*str != ':'){ - printk("fd_init : channel type 'fd' must specify a file " - "descriptor\n"); - return(NULL); + if (*str != ':') { + printk(UM_KERN_ERR "fd_init : channel type 'fd' must specify a " + "file descriptor\n"); + return NULL; } str++; n = strtoul(str, &end, 0); - if((*end != '\0') || (end == str)){ - printk("fd_init : couldn't parse file descriptor '%s'\n", str); - return(NULL); + if ((*end != '\0') || (end == str)) { + printk(UM_KERN_ERR "fd_init : couldn't parse file descriptor " + "'%s'\n", str); + return NULL; } - data = um_kmalloc(sizeof(*data)); - if(data == NULL) return(NULL); + + data = uml_kmalloc(sizeof(*data), UM_GFP_KERNEL); + if (data == NULL) + return NULL; + *data = ((struct fd_chan) { .fd = n, .raw = opts->raw }); - return(data); + return data; } static int fd_open(int input, int output, int primary, void *d, char **dev_out) @@ -48,18 +52,18 @@ static int fd_open(int input, int output, int primary, void *d, char **dev_out) struct fd_chan *data = d; int err; - if(data->raw && isatty(data->fd)){ + if (data->raw && isatty(data->fd)) { CATCH_EINTR(err = tcgetattr(data->fd, &data->tt)); - if(err) - return(err); + if (err) + return err; err = raw(data->fd); - if(err) - return(err); + if (err) + return err; } sprintf(data->str, "%d", data->fd); *dev_out = data->str; - return(data->fd); + return data->fd; } static void fd_close(int fd, void *d) @@ -67,42 +71,25 @@ static void fd_close(int fd, void *d) struct fd_chan *data = d; int err; - if(data->raw && isatty(fd)){ - CATCH_EINTR(err = tcsetattr(fd, TCSAFLUSH, &data->tt)); - if(err) - printk("Failed to restore terminal state - " - "errno = %d\n", -err); - data->raw = 0; - } -} + if (!data->raw || !isatty(fd)) + return; -static int fd_console_write(int fd, const char *buf, int n, void *d) -{ - struct fd_chan *data = d; - - return(generic_console_write(fd, buf, n, &data->tt)); + CATCH_EINTR(err = tcsetattr(fd, TCSAFLUSH, &data->tt)); + if (err) + printk(UM_KERN_ERR "Failed to restore terminal state - " + "errno = %d\n", -err); + data->raw = 0; } -struct chan_ops fd_ops = { +const struct chan_ops fd_ops = { .type = "fd", .init = fd_init, .open = fd_open, .close = fd_close, .read = generic_read, .write = generic_write, - .console_write = fd_console_write, + .console_write = generic_console_write, .window_size = generic_window_size, .free = generic_free, .winch = 1, }; - -/* - * 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: - */ |
