diff options
Diffstat (limited to 'kernel/old/include/cio.h')
| -rw-r--r-- | kernel/old/include/cio.h | 287 |
1 files changed, 0 insertions, 287 deletions
diff --git a/kernel/old/include/cio.h b/kernel/old/include/cio.h deleted file mode 100644 index 1854f6e..0000000 --- a/kernel/old/include/cio.h +++ /dev/null @@ -1,287 +0,0 @@ -/** -** SCCS ID: @(#)cio.h 2.7 1/22/25 -** -** @file cio.h -** -** @author Warren R. Carithers -** @authors K. Reek, Jon Coles -** -** Based on: c_io.c 1.13 (Ken Reek, Jon Coles, Warren R. Carithers) -** -** Declarations and descriptions of console I/O routines -** -** These routines provide a rudimentary capability for printing to -** the screen and reading from the keyboard. -** -** Screen output: -** There are two families of functions. The first provides a window -** that behaves in the usual manner: writes extending beyond the right -** edge of the window wrap around to the next line, the top line -** scrolls off the window to make room for new lines at the bottom. -** However, you may choose what part of the screen contains this -** scrolling window. This allows you to print some text at fixed -** locations on the screen while the rest of the screen scrolls. -** -** The second family allows for printing at fixed locations on the -** screen. No scrolling or line wrapping are done for these functions. -** It is not intended that these functions be used to write in the -** scrolling area of the screen. -** -** In both sets of functions, the (x,y) coordinates are interpreted -** as (column,row), with the upper left corner of the screen being -** (0,0) and the lower right corner being (79,24). -** -** The printf provided in both sets of functions has the same -** conversion capabilities. Format codes are of the form: -** -** %-0WC -** -** where "-", "0", and "W" are all optional: -** "-" is the left-adjust flag (default is right-adjust) -** "0" is the zero-fill flag (default is space-fill) -** "W" is a number specifying the minimum field width (default: 1 ) -** and "C" is the conversion type, which must be one of these: -** "c" print a single character -** "s" print a null-terminated string -** "d" print an integer as a decimal value -** "x" print an integer as a hexadecimal value -** "o" print an integer as a octal value -** -** Keyboard input: -** Two functions are provided: getting a single character and getting -** a newline-terminated line. A third function returns a count of -** the number of characters available for immediate reading. -** No conversions are provided (yet). -*/ - -#ifndef CIO_H_ -#define CIO_H_ - -#ifndef ASM_SRC - -// EOT indicator (control-D) -#define EOT '\04' - -/***************************************************************************** -** -** INITIALIZATION ROUTINES -** -** Initializes the I/O system. -*/ - -/** -** cio_init -** -** Initializes the I/O routines. Must be called before -** any CIO functions can be used. -** -** @param notify pointer to an input notification function, or NULL -*/ -void cio_init( void (*notify)(int) ); - -/***************************************************************************** -** -** SCROLLING OUTPUT ROUTINES -** -** Each operation begins at the current cursor position and advances -** it. If a newline is output, the reminder of that line is cleared. -** Output extending past the end of the line is wrapped. If the -** cursor is moved below the scrolling region's bottom edge, scrolling -** is delayed until the next output is produced. -*/ - -/** -** cio_setscroll -** -** This sets the scrolling region to be the area defined by the arguments. -** The remainder of the screen does not scroll and may be used to display -** data you do not want to move. By default, the scrolling region is the -** entire screen. X and Y coordinates begin at 0 in the upper left corner -** of the screen. -** -** @param min_x,min_y upper-left corner of the region -** @param max_x,max_y lower-right corner of the region -*/ -void cio_setscroll( unsigned int min_x, unsigned int min_y, - unsigned int max_x, unsigned int max_y ); - -/** -** cio_moveto -** -** Moves the cursor to the specified position. (0,0) indicates -** the upper left corner of the scrolling region. Subsequent -** output will begin at the cursor position. -** -** @param x,y desired coordinate position -*/ -void cio_moveto( unsigned int x, unsigned int y ); - -/** -** cio_putchar -** -** Prints a single character. -** -** @param c the character to be printed -*/ -void cio_putchar( unsigned int c ); - -/** -** cio_puts -** -** Prints the characters in the string up to but not including -** the terminating null byte. -** -** @param str pointer to a NUL-terminated string to be printed -*/ -void cio_puts( const char *str ); - -/** -** cio_write -** -** Prints "length" characters from the buffer. -** -** @param buf the buffer of characters -** @param length the number of characters to print -*/ -void cio_write( const char *buf, int length ); - -/** -** cio_printf -** -** Limited form of printf (see the beginning of this file for -** a list of what is implemented). -** -** @param fmt a printf-style format control string -** @param ... optional additional values to be printed -*/ -void cio_printf( char *fmt, ... ); - -/** -** cio_scroll -** -** Scroll the scrolling region up by the given number of lines. -** The output routines scroll automatically so normally you -** do not need to call this routine yourself. -** -** @param lines the number of lines to scroll -*/ -void cio_scroll( unsigned int lines ); - -/** -** cio_clearscroll -** -** Clears the entire scrolling region to blank spaces, and -** moves the cursor to (0,0). -*/ -void cio_clearscroll( void ); - -/***************************************************************************** -** -** NON-SCROLLING OUTPUT ROUTINES -** -** Coordinates are relative to the entire screen: (0,0) is the upper -** left corner. There is no line wrap or scrolling. -*/ - -/** -** cio_putchar_at -** -** Prints the given character. If a newline is printed, -** the rest of the line is cleared. If this happens to the -** left of the scrolling region, the clearing stops when the -** region is reached. If this happens inside the scrolling -** region, the clearing stops when the edge of the region -** is reached. -** -** @param x,y desired coordinate position -** @param c the character to be printed -*/ -void cio_putchar_at( unsigned int x, unsigned int y, unsigned int c ); - -/** -** cio_puts_at -** -** Prints the given string. cio_putchar_at is used to print -** the individual characters; see that description for details. -** -** @param x,y desired coordinate position -** @param str pointer to a NUL-terminated string to be printed -*/ -void cio_puts_at( unsigned int x, unsigned int y, const char *str ); - -/** -** cio_printf_at -** -** Limited form of printf (see the beginning of this file for -** a list of what is implemented). -** -** @param x,y desired coordinate position -** @param fmt a printf-style format control string -** @param ... optional additional values to be printed -*/ -void cio_printf_at( unsigned int x, unsigned int y, char *fmt, ... ); - -/** -** cio_clearscreen -** -** This function clears the entire screen, including the scrolling region. -*/ -void cio_clearscreen( void ); - -/***************************************************************************** -** -** INPUT ROUTINES -** -** When interrupts are enabled, a keyboard ISR collects keystrokes -** and saves them until the program calls for them. If the input -** queue fills, additional characters are silently discarded. -** When interrupts are not enabled, keystrokes made when no input -** routines have been ** called are lost. This can cause errors in -** the input translation because the states of the Shift and Ctrl keys -** may not be tracked accurately. If interrupts are disabled, the user -** is advised to refrain from typing anything except when the program is -** waiting for input. -*/ - -/** -** cio_getchar -** -** If the character is not immediately available, the function -** waits until the character arrives. -** -** @return the next character from the keyboard input buffer -*/ -int cio_getchar( void ); - -/** -** cio_gets -** -** This function reads a newline-terminated line from the -** keyboard. cio_getchar is used to obtain the characters; -** see that description for more details. The function -** returns when: -** a newline is entered (this is stored in the buffer) -** ctrl-D is entered (not stored in the buffer) -** the buffer becomes full. -** The buffer is null-terminated in all cases. -** -** @param buffer destination buffer for the input character sequence -** @param size the buffer length -** -** @return count of the number of characters read into the buffer -*/ -int cio_gets( char *buffer, unsigned int size ); - -/** -** cio_input_queue -** -** This function lets the program determine whether there is input -** available. This indicates whether or not a call to cio_getchar() -** would block. -** -** @return number of characters in the input queue -*/ -int cio_input_queue( void ); -#endif /* !ASM_SRC */ - -#endif |