diff options
Diffstat (limited to 'old/xenolinux-2.4.16-sparse/arch/xeno/drivers/console/console.c')
| -rw-r--r-- | old/xenolinux-2.4.16-sparse/arch/xeno/drivers/console/console.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/old/xenolinux-2.4.16-sparse/arch/xeno/drivers/console/console.c b/old/xenolinux-2.4.16-sparse/arch/xeno/drivers/console/console.c deleted file mode 100644 index 11548f877e..0000000000 --- a/old/xenolinux-2.4.16-sparse/arch/xeno/drivers/console/console.c +++ /dev/null @@ -1,204 +0,0 @@ -/****************************************************************************** - * console.c - */ - -#include <linux/config.h> -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/tty.h> -#include <linux/tty_flip.h> -#include <linux/serial.h> -#include <linux/major.h> -#include <linux/ptrace.h> -#include <linux/ioport.h> -#include <linux/mm.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/console.h> - -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/hypervisor.h> - -/******************** Kernel console driver ********************************/ - -static void kconsole_write(struct console *co, const char *s, unsigned count) -{ -#define STRLEN 256 - static char str[STRLEN]; - static int pos = 0; - int len; - - /* We buffer output until we see a newline, or until the buffer is full. */ - while ( count != 0 ) - { - len = ((STRLEN - pos) > count) ? count : STRLEN - pos; - memcpy(str + pos, s, len); - pos += len; - s += len; - count -= len; - if ( (pos == STRLEN) || (str[pos-1] == '\n') ) - { - (void)HYPERVISOR_console_write(str, pos); - pos = 0; - } - } -} - -static kdev_t kconsole_device(struct console *c) -{ - /* - * This is the magic that binds our "struct console" to our - * "tty_struct", defined below. - */ - return MKDEV(TTY_MAJOR, 0); -} - -static struct console kconsole_info = { - name: "xenocon", - write: kconsole_write, - device: kconsole_device, - flags: CON_PRINTBUFFER, - index: -1, -}; - -void xeno_console_init(void) -{ - register_console(&kconsole_info); -} - - -/******************** Initial /dev/console *********************************/ - - -static struct tty_driver console_driver; -static int console_refcount; -static struct tty_struct *console_table[1]; -static struct termios *console_termios[1]; -static struct termios *console_termios_locked[1]; - -static int console_write_room(struct tty_struct *tty) -{ - return INT_MAX; -} - -static int console_chars_in_buffer(struct tty_struct *tty) -{ - return 0; -} - -static inline int console_xmit(int ch) -{ - char _ch = ch; - kconsole_write(NULL, &_ch, 1); - return 1; -} - -static int console_write(struct tty_struct *tty, int from_user, - const u_char * buf, int count) -{ - int i; - - if ( from_user && verify_area(VERIFY_READ, buf, count) ) - { - return -EINVAL; - } - - for ( i = 0; i < count; i++ ) - { - char ch; - if ( from_user ) - { - __get_user(ch, buf + i); - } - else - { - ch = buf[i]; - } - console_xmit(ch); - } - return i; -} - -static void console_put_char(struct tty_struct *tty, u_char ch) -{ - console_xmit(ch); -} - -static int console_open(struct tty_struct *tty, struct file *filp) -{ - int line; - - MOD_INC_USE_COUNT; - line = MINOR(tty->device) - tty->driver.minor_start; - if ( line ) - { - MOD_DEC_USE_COUNT; - return -ENODEV; - } - - tty->driver_data = NULL; - - return 0; -} - -static void console_close(struct tty_struct *tty, struct file *filp) -{ - MOD_DEC_USE_COUNT; -} - -static int __init console_ini(void) -{ - memset(&console_driver, 0, sizeof(struct tty_driver)); - console_driver.magic = TTY_DRIVER_MAGIC; - console_driver.driver_name = "xeno_console"; - console_driver.name = "console"; - console_driver.major = TTY_MAJOR; - console_driver.minor_start = 0; - console_driver.num = 1; - console_driver.type = TTY_DRIVER_TYPE_SERIAL; - console_driver.subtype = SERIAL_TYPE_NORMAL; - console_driver.init_termios = tty_std_termios; - console_driver.flags = TTY_DRIVER_REAL_RAW; - console_driver.refcount = &console_refcount; - console_driver.table = console_table; - console_driver.termios = console_termios; - console_driver.termios_locked = console_termios_locked; - /* Functions */ - console_driver.open = console_open; - console_driver.close = console_close; - console_driver.write = console_write; - console_driver.write_room = console_write_room; - console_driver.put_char = console_put_char; - console_driver.chars_in_buffer = console_chars_in_buffer; - - if ( tty_register_driver(&console_driver) ) - { - printk(KERN_ERR "Couldn't register Xeno console driver\n"); - } - else - { - printk("Xeno console successfully installed\n"); - } - - return 0; -} - -static void __exit console_fin(void) -{ - int ret; - - ret = tty_unregister_driver(&console_driver); - if ( ret != 0 ) - { - printk(KERN_ERR "Unable to unregister Xeno console driver: %d\n", ret); - } -} - -module_init(console_ini); -module_exit(console_fin); - |