Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/tty.h b/include/linux/tty.h
new file mode 100644
index 0000000..1b76106
--- /dev/null
+++ b/include/linux/tty.h
@@ -0,0 +1,412 @@
+#ifndef _LINUX_TTY_H
+#define _LINUX_TTY_H
+
+/*
+ * 'tty.h' defines some structures used by tty_io.c and some defines.
+ */
+
+/*
+ * These constants are also useful for user-level apps (e.g., VC
+ * resizing).
+ */
+#define MIN_NR_CONSOLES 1 /* must be at least 1 */
+#define MAX_NR_CONSOLES 63 /* serial lines start at 64 */
+#define MAX_NR_USER_CONSOLES 63 /* must be root to allocate above this */
+ /* Note: the ioctl VT_GETSTATE does not work for
+ consoles 16 and higher (since it returns a short) */
+
+#ifdef __KERNEL__
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/major.h>
+#include <linux/termios.h>
+#include <linux/workqueue.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_ldisc.h>
+
+#include <asm/system.h>
+
+
+/*
+ * (Note: the *_driver.minor_start values 1, 64, 128, 192 are
+ * hardcoded at present.)
+ */
+#define NR_PTYS CONFIG_LEGACY_PTY_COUNT /* Number of legacy ptys */
+#define NR_UNIX98_PTY_DEFAULT 4096 /* Default maximum for Unix98 ptys */
+#define NR_UNIX98_PTY_MAX (1 << MINORBITS) /* Absolute limit */
+#define NR_LDISCS 16
+
+/*
+ * These are set up by the setup-routine at boot-time:
+ */
+
+struct screen_info {
+ u8 orig_x; /* 0x00 */
+ u8 orig_y; /* 0x01 */
+ u16 dontuse1; /* 0x02 -- EXT_MEM_K sits here */
+ u16 orig_video_page; /* 0x04 */
+ u8 orig_video_mode; /* 0x06 */
+ u8 orig_video_cols; /* 0x07 */
+ u16 unused2; /* 0x08 */
+ u16 orig_video_ega_bx; /* 0x0a */
+ u16 unused3; /* 0x0c */
+ u8 orig_video_lines; /* 0x0e */
+ u8 orig_video_isVGA; /* 0x0f */
+ u16 orig_video_points; /* 0x10 */
+
+ /* VESA graphic mode -- linear frame buffer */
+ u16 lfb_width; /* 0x12 */
+ u16 lfb_height; /* 0x14 */
+ u16 lfb_depth; /* 0x16 */
+ u32 lfb_base; /* 0x18 */
+ u32 lfb_size; /* 0x1c */
+ u16 dontuse2, dontuse3; /* 0x20 -- CL_MAGIC and CL_OFFSET here */
+ u16 lfb_linelength; /* 0x24 */
+ u8 red_size; /* 0x26 */
+ u8 red_pos; /* 0x27 */
+ u8 green_size; /* 0x28 */
+ u8 green_pos; /* 0x29 */
+ u8 blue_size; /* 0x2a */
+ u8 blue_pos; /* 0x2b */
+ u8 rsvd_size; /* 0x2c */
+ u8 rsvd_pos; /* 0x2d */
+ u16 vesapm_seg; /* 0x2e */
+ u16 vesapm_off; /* 0x30 */
+ u16 pages; /* 0x32 */
+ u16 vesa_attributes; /* 0x34 */
+ /* 0x36 -- 0x3f reserved for future expansion */
+};
+
+extern struct screen_info screen_info;
+
+#define ORIG_X (screen_info.orig_x)
+#define ORIG_Y (screen_info.orig_y)
+#define ORIG_VIDEO_MODE (screen_info.orig_video_mode)
+#define ORIG_VIDEO_COLS (screen_info.orig_video_cols)
+#define ORIG_VIDEO_EGA_BX (screen_info.orig_video_ega_bx)
+#define ORIG_VIDEO_LINES (screen_info.orig_video_lines)
+#define ORIG_VIDEO_ISVGA (screen_info.orig_video_isVGA)
+#define ORIG_VIDEO_POINTS (screen_info.orig_video_points)
+
+#define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */
+#define VIDEO_TYPE_CGA 0x11 /* CGA Display */
+#define VIDEO_TYPE_EGAM 0x20 /* EGA/VGA in Monochrome Mode */
+#define VIDEO_TYPE_EGAC 0x21 /* EGA in Color Mode */
+#define VIDEO_TYPE_VGAC 0x22 /* VGA+ in Color Mode */
+#define VIDEO_TYPE_VLFB 0x23 /* VESA VGA in graphic mode */
+
+#define VIDEO_TYPE_PICA_S3 0x30 /* ACER PICA-61 local S3 video */
+#define VIDEO_TYPE_MIPS_G364 0x31 /* MIPS Magnum 4000 G364 video */
+#define VIDEO_TYPE_SGI 0x33 /* Various SGI graphics hardware */
+
+#define VIDEO_TYPE_TGAC 0x40 /* DEC TGA */
+
+#define VIDEO_TYPE_SUN 0x50 /* Sun frame buffer. */
+#define VIDEO_TYPE_SUNPCI 0x51 /* Sun PCI based frame buffer. */
+
+#define VIDEO_TYPE_PMAC 0x60 /* PowerMacintosh frame buffer. */
+
+/*
+ * This character is the same as _POSIX_VDISABLE: it cannot be used as
+ * a c_cc[] character, but indicates that a particular special character
+ * isn't in use (eg VINTR has no character etc)
+ */
+#define __DISABLED_CHAR '\0'
+
+/*
+ * This is the flip buffer used for the tty driver. The buffer is
+ * located in the tty structure, and is used as a high speed interface
+ * between the tty driver and the tty line discipline.
+ */
+#define TTY_FLIPBUF_SIZE 512
+
+struct tty_flip_buffer {
+ struct work_struct work;
+ struct semaphore pty_sem;
+ char *char_buf_ptr;
+ unsigned char *flag_buf_ptr;
+ int count;
+ int buf_num;
+ unsigned char char_buf[2*TTY_FLIPBUF_SIZE];
+ char flag_buf[2*TTY_FLIPBUF_SIZE];
+ unsigned char slop[4]; /* N.B. bug overwrites buffer by 1 */
+};
+/*
+ * The pty uses char_buf and flag_buf as a contiguous buffer
+ */
+#define PTY_BUF_SIZE 4*TTY_FLIPBUF_SIZE
+
+/*
+ * When a break, frame error, or parity error happens, these codes are
+ * stuffed into the flags buffer.
+ */
+#define TTY_NORMAL 0
+#define TTY_BREAK 1
+#define TTY_FRAME 2
+#define TTY_PARITY 3
+#define TTY_OVERRUN 4
+
+#define INTR_CHAR(tty) ((tty)->termios->c_cc[VINTR])
+#define QUIT_CHAR(tty) ((tty)->termios->c_cc[VQUIT])
+#define ERASE_CHAR(tty) ((tty)->termios->c_cc[VERASE])
+#define KILL_CHAR(tty) ((tty)->termios->c_cc[VKILL])
+#define EOF_CHAR(tty) ((tty)->termios->c_cc[VEOF])
+#define TIME_CHAR(tty) ((tty)->termios->c_cc[VTIME])
+#define MIN_CHAR(tty) ((tty)->termios->c_cc[VMIN])
+#define SWTC_CHAR(tty) ((tty)->termios->c_cc[VSWTC])
+#define START_CHAR(tty) ((tty)->termios->c_cc[VSTART])
+#define STOP_CHAR(tty) ((tty)->termios->c_cc[VSTOP])
+#define SUSP_CHAR(tty) ((tty)->termios->c_cc[VSUSP])
+#define EOL_CHAR(tty) ((tty)->termios->c_cc[VEOL])
+#define REPRINT_CHAR(tty) ((tty)->termios->c_cc[VREPRINT])
+#define DISCARD_CHAR(tty) ((tty)->termios->c_cc[VDISCARD])
+#define WERASE_CHAR(tty) ((tty)->termios->c_cc[VWERASE])
+#define LNEXT_CHAR(tty) ((tty)->termios->c_cc[VLNEXT])
+#define EOL2_CHAR(tty) ((tty)->termios->c_cc[VEOL2])
+
+#define _I_FLAG(tty,f) ((tty)->termios->c_iflag & (f))
+#define _O_FLAG(tty,f) ((tty)->termios->c_oflag & (f))
+#define _C_FLAG(tty,f) ((tty)->termios->c_cflag & (f))
+#define _L_FLAG(tty,f) ((tty)->termios->c_lflag & (f))
+
+#define I_IGNBRK(tty) _I_FLAG((tty),IGNBRK)
+#define I_BRKINT(tty) _I_FLAG((tty),BRKINT)
+#define I_IGNPAR(tty) _I_FLAG((tty),IGNPAR)
+#define I_PARMRK(tty) _I_FLAG((tty),PARMRK)
+#define I_INPCK(tty) _I_FLAG((tty),INPCK)
+#define I_ISTRIP(tty) _I_FLAG((tty),ISTRIP)
+#define I_INLCR(tty) _I_FLAG((tty),INLCR)
+#define I_IGNCR(tty) _I_FLAG((tty),IGNCR)
+#define I_ICRNL(tty) _I_FLAG((tty),ICRNL)
+#define I_IUCLC(tty) _I_FLAG((tty),IUCLC)
+#define I_IXON(tty) _I_FLAG((tty),IXON)
+#define I_IXANY(tty) _I_FLAG((tty),IXANY)
+#define I_IXOFF(tty) _I_FLAG((tty),IXOFF)
+#define I_IMAXBEL(tty) _I_FLAG((tty),IMAXBEL)
+#define I_IUTF8(tty) _I_FLAG((tty),IUTF8)
+
+#define O_OPOST(tty) _O_FLAG((tty),OPOST)
+#define O_OLCUC(tty) _O_FLAG((tty),OLCUC)
+#define O_ONLCR(tty) _O_FLAG((tty),ONLCR)
+#define O_OCRNL(tty) _O_FLAG((tty),OCRNL)
+#define O_ONOCR(tty) _O_FLAG((tty),ONOCR)
+#define O_ONLRET(tty) _O_FLAG((tty),ONLRET)
+#define O_OFILL(tty) _O_FLAG((tty),OFILL)
+#define O_OFDEL(tty) _O_FLAG((tty),OFDEL)
+#define O_NLDLY(tty) _O_FLAG((tty),NLDLY)
+#define O_CRDLY(tty) _O_FLAG((tty),CRDLY)
+#define O_TABDLY(tty) _O_FLAG((tty),TABDLY)
+#define O_BSDLY(tty) _O_FLAG((tty),BSDLY)
+#define O_VTDLY(tty) _O_FLAG((tty),VTDLY)
+#define O_FFDLY(tty) _O_FLAG((tty),FFDLY)
+
+#define C_BAUD(tty) _C_FLAG((tty),CBAUD)
+#define C_CSIZE(tty) _C_FLAG((tty),CSIZE)
+#define C_CSTOPB(tty) _C_FLAG((tty),CSTOPB)
+#define C_CREAD(tty) _C_FLAG((tty),CREAD)
+#define C_PARENB(tty) _C_FLAG((tty),PARENB)
+#define C_PARODD(tty) _C_FLAG((tty),PARODD)
+#define C_HUPCL(tty) _C_FLAG((tty),HUPCL)
+#define C_CLOCAL(tty) _C_FLAG((tty),CLOCAL)
+#define C_CIBAUD(tty) _C_FLAG((tty),CIBAUD)
+#define C_CRTSCTS(tty) _C_FLAG((tty),CRTSCTS)
+
+#define L_ISIG(tty) _L_FLAG((tty),ISIG)
+#define L_ICANON(tty) _L_FLAG((tty),ICANON)
+#define L_XCASE(tty) _L_FLAG((tty),XCASE)
+#define L_ECHO(tty) _L_FLAG((tty),ECHO)
+#define L_ECHOE(tty) _L_FLAG((tty),ECHOE)
+#define L_ECHOK(tty) _L_FLAG((tty),ECHOK)
+#define L_ECHONL(tty) _L_FLAG((tty),ECHONL)
+#define L_NOFLSH(tty) _L_FLAG((tty),NOFLSH)
+#define L_TOSTOP(tty) _L_FLAG((tty),TOSTOP)
+#define L_ECHOCTL(tty) _L_FLAG((tty),ECHOCTL)
+#define L_ECHOPRT(tty) _L_FLAG((tty),ECHOPRT)
+#define L_ECHOKE(tty) _L_FLAG((tty),ECHOKE)
+#define L_FLUSHO(tty) _L_FLAG((tty),FLUSHO)
+#define L_PENDIN(tty) _L_FLAG((tty),PENDIN)
+#define L_IEXTEN(tty) _L_FLAG((tty),IEXTEN)
+
+struct device;
+/*
+ * Where all of the state associated with a tty is kept while the tty
+ * is open. Since the termios state should be kept even if the tty
+ * has been closed --- for things like the baud rate, etc --- it is
+ * not stored here, but rather a pointer to the real state is stored
+ * here. Possible the winsize structure should have the same
+ * treatment, but (1) the default 80x24 is usually right and (2) it's
+ * most often used by a windowing system, which will set the correct
+ * size each time the window is created or resized anyway.
+ * - TYT, 9/14/92
+ */
+struct tty_struct {
+ int magic;
+ struct tty_driver *driver;
+ int index;
+ struct tty_ldisc ldisc;
+ struct semaphore termios_sem;
+ struct termios *termios, *termios_locked;
+ char name[64];
+ int pgrp;
+ int session;
+ unsigned long flags;
+ int count;
+ struct winsize winsize;
+ unsigned char stopped:1, hw_stopped:1, flow_stopped:1, packet:1;
+ unsigned char low_latency:1, warned:1;
+ unsigned char ctrl_status;
+
+ struct tty_struct *link;
+ struct fasync_struct *fasync;
+ struct tty_flip_buffer flip;
+ int max_flip_cnt;
+ int alt_speed; /* For magic substitution of 38400 bps */
+ wait_queue_head_t write_wait;
+ wait_queue_head_t read_wait;
+ struct work_struct hangup_work;
+ void *disc_data;
+ void *driver_data;
+ struct list_head tty_files;
+
+#define N_TTY_BUF_SIZE 4096
+
+ /*
+ * The following is data for the N_TTY line discipline. For
+ * historical reasons, this is included in the tty structure.
+ */
+ unsigned int column;
+ unsigned char lnext:1, erasing:1, raw:1, real_raw:1, icanon:1;
+ unsigned char closing:1;
+ unsigned short minimum_to_wake;
+ unsigned long overrun_time;
+ int num_overrun;
+ unsigned long process_char_map[256/(8*sizeof(unsigned long))];
+ char *read_buf;
+ int read_head;
+ int read_tail;
+ int read_cnt;
+ unsigned long read_flags[N_TTY_BUF_SIZE/(8*sizeof(unsigned long))];
+ int canon_data;
+ unsigned long canon_head;
+ unsigned int canon_column;
+ struct semaphore atomic_read;
+ struct semaphore atomic_write;
+ unsigned char *write_buf;
+ int write_cnt;
+ spinlock_t read_lock;
+ /* If the tty has a pending do_SAK, queue it here - akpm */
+ struct work_struct SAK_work;
+};
+
+/* tty magic number */
+#define TTY_MAGIC 0x5401
+
+/*
+ * These bits are used in the flags field of the tty structure.
+ *
+ * So that interrupts won't be able to mess up the queues,
+ * copy_to_cooked must be atomic with respect to itself, as must
+ * tty->write. Thus, you must use the inline functions set_bit() and
+ * clear_bit() to make things atomic.
+ */
+#define TTY_THROTTLED 0 /* Call unthrottle() at threshold min */
+#define TTY_IO_ERROR 1 /* Canse an I/O error (may be no ldisc too) */
+#define TTY_OTHER_CLOSED 2 /* Other side (if any) has closed */
+#define TTY_EXCLUSIVE 3 /* Exclusive open mode */
+#define TTY_DEBUG 4 /* Debugging */
+#define TTY_DO_WRITE_WAKEUP 5 /* Call write_wakeup after queuing new */
+#define TTY_PUSH 6 /* n_tty private */
+#define TTY_CLOSING 7 /* ->close() in progress */
+#define TTY_DONT_FLIP 8 /* Defer buffer flip */
+#define TTY_LDISC 9 /* Line discipline attached */
+#define TTY_HW_COOK_OUT 14 /* Hardware can do output cooking */
+#define TTY_HW_COOK_IN 15 /* Hardware can do input cooking */
+#define TTY_PTY_LOCK 16 /* pty private */
+#define TTY_NO_WRITE_SPLIT 17 /* Preserve write boundaries to driver */
+#define TTY_HUPPED 18 /* Post driver->hangup() */
+
+#define TTY_WRITE_FLUSH(tty) tty_write_flush((tty))
+
+extern void tty_write_flush(struct tty_struct *);
+
+extern struct termios tty_std_termios;
+extern int fg_console, last_console, want_console;
+
+extern int kmsg_redirect;
+
+extern void console_init(void);
+extern int vcs_init(void);
+
+extern int tty_paranoia_check(struct tty_struct *tty, struct inode *inode,
+ const char *routine);
+extern char *tty_name(struct tty_struct *tty, char *buf);
+extern void tty_wait_until_sent(struct tty_struct * tty, long timeout);
+extern int tty_check_change(struct tty_struct * tty);
+extern void stop_tty(struct tty_struct * tty);
+extern void start_tty(struct tty_struct * tty);
+extern int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc);
+extern int tty_register_driver(struct tty_driver *driver);
+extern int tty_unregister_driver(struct tty_driver *driver);
+extern void tty_register_device(struct tty_driver *driver, unsigned index, struct device *dev);
+extern void tty_unregister_device(struct tty_driver *driver, unsigned index);
+extern int tty_read_raw_data(struct tty_struct *tty, unsigned char *bufp,
+ int buflen);
+extern void tty_write_message(struct tty_struct *tty, char *msg);
+
+extern int is_orphaned_pgrp(int pgrp);
+extern int is_ignored(int sig);
+extern int tty_signal(int sig, struct tty_struct *tty);
+extern void tty_hangup(struct tty_struct * tty);
+extern void tty_vhangup(struct tty_struct * tty);
+extern void tty_unhangup(struct file *filp);
+extern int tty_hung_up_p(struct file * filp);
+extern void do_SAK(struct tty_struct *tty);
+extern void disassociate_ctty(int priv);
+extern void tty_flip_buffer_push(struct tty_struct *tty);
+extern int tty_get_baud_rate(struct tty_struct *tty);
+extern int tty_termios_baud_rate(struct termios *termios);
+
+extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *);
+extern void tty_ldisc_deref(struct tty_ldisc *);
+extern struct tty_ldisc *tty_ldisc_ref_wait(struct tty_struct *);
+
+extern struct tty_ldisc *tty_ldisc_get(int);
+extern void tty_ldisc_put(int);
+
+extern void tty_wakeup(struct tty_struct *tty);
+extern void tty_ldisc_flush(struct tty_struct *tty);
+
+struct semaphore;
+extern struct semaphore tty_sem;
+
+/* n_tty.c */
+extern struct tty_ldisc tty_ldisc_N_TTY;
+
+/* tty_ioctl.c */
+extern int n_tty_ioctl(struct tty_struct * tty, struct file * file,
+ unsigned int cmd, unsigned long arg);
+
+/* serial.c */
+
+extern void serial_console_init(void);
+
+/* pcxx.c */
+
+extern int pcxe_open(struct tty_struct *tty, struct file *filp);
+
+/* printk.c */
+
+extern void console_print(const char *);
+
+/* vt.c */
+
+extern int vt_ioctl(struct tty_struct *tty, struct file * file,
+ unsigned int cmd, unsigned long arg);
+
+static inline dev_t tty_devnum(struct tty_struct *tty)
+{
+ return MKDEV(tty->driver->major, tty->driver->minor_start) + tty->index;
+}
+
+#endif /* __KERNEL__ */
+#endif