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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* |
| 2 | * linux/include/linux/console.h |
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| 3 | * |
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| 4 | * Copyright (C) 1993 Hamish Macdonald |
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| 5 | * |
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| 6 | * This file is subject to the terms and conditions of the GNU General Public |
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| 7 | * License. See the file COPYING in the main directory of this archive |
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| 8 | * for more details. |
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| 9 | * |
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| 10 | * Changed: |
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| 11 | * 10-Mar-94: Arno Griffioen: Conversion for vt100 emulator port from PC LINUX |
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| 12 | */ |
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| 13 | |||
| 14 | #ifndef _LINUX_CONSOLE_H_ |
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| 15 | #define _LINUX_CONSOLE_H_ 1 |
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| 16 | |||
| 17 | #include <linux/types.h> |
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| 18 | #include <linux/spinlock.h> |
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| 19 | |||
| 20 | struct vc_data; |
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| 21 | struct console_font_op; |
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| 22 | |||
| 23 | /* |
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| 24 | * this is what the terminal answers to a ESC-Z or csi0c query. |
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| 25 | */ |
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| 26 | #define VT100ID "\033[?1;2c" |
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| 27 | #define VT102ID "\033[?6c" |
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| 28 | |||
| 29 | struct consw { |
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| 30 | const char *(*con_startup)(void); |
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| 31 | void (*con_init)(struct vc_data *, int); |
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| 32 | void (*con_deinit)(struct vc_data *); |
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| 33 | void (*con_clear)(struct vc_data *, int, int, int, int); |
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| 34 | void (*con_putc)(struct vc_data *, int, int, int); |
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| 35 | void (*con_putcs)(struct vc_data *, const unsigned short *, int, int, int); |
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| 36 | void (*con_cursor)(struct vc_data *, int); |
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| 37 | int (*con_scroll)(struct vc_data *, int, int, int, int); |
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| 38 | void (*con_bmove)(struct vc_data *, int, int, int, int, int, int); |
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| 39 | int (*con_switch)(struct vc_data *); |
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| 40 | int (*con_blank)(struct vc_data *, int); |
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| 41 | int (*con_font_op)(struct vc_data *, struct console_font_op *); |
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| 42 | int (*con_resize)(struct vc_data *, unsigned int, unsigned int); |
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| 43 | int (*con_set_palette)(struct vc_data *, unsigned char *); |
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| 44 | int (*con_scrolldelta)(struct vc_data *, int); |
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| 45 | int (*con_set_origin)(struct vc_data *); |
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| 46 | void (*con_save_screen)(struct vc_data *); |
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| 47 | u8 (*con_build_attr)(struct vc_data *, u8, u8, u8, u8, u8); |
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| 48 | void (*con_invert_region)(struct vc_data *, u16 *, int); |
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| 49 | u16 *(*con_screen_pos)(struct vc_data *, int); |
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| 50 | unsigned long (*con_getxy)(struct vc_data *, unsigned long, int *, int *); |
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| 51 | }; |
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| 52 | |||
| 53 | extern const struct consw *conswitchp; |
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| 54 | |||
| 55 | extern const struct consw dummy_con; /* dummy console buffer */ |
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| 56 | extern const struct consw fb_con; /* frame buffer based console */ |
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| 57 | extern const struct consw vga_con; /* VGA text console */ |
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| 58 | extern const struct consw newport_con; /* SGI Newport console */ |
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| 59 | extern const struct consw prom_con; /* SPARC PROM console */ |
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| 60 | |||
| 61 | void take_over_console(const struct consw *sw, int first, int last, int deflt); |
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| 62 | void give_up_console(const struct consw *sw); |
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| 63 | |||
| 64 | /* scroll */ |
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| 65 | #define SM_UP (1) |
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| 66 | #define SM_DOWN (2) |
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| 67 | |||
| 68 | /* cursor */ |
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| 69 | #define CM_DRAW (1) |
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| 70 | #define CM_ERASE (2) |
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| 71 | #define CM_MOVE (3) |
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| 72 | |||
| 73 | /* |
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| 74 | * Array of consoles built from command line options (console=) |
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| 75 | */ |
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| 76 | struct console_cmdline |
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| 77 | { |
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| 78 | char name[8]; /* Name of the driver */ |
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| 79 | int index; /* Minor dev. to use */ |
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| 80 | char *options; /* Options for the driver */ |
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| 81 | }; |
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| 82 | #define MAX_CMDLINECONSOLES 8 |
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| 83 | extern struct console_cmdline console_list[MAX_CMDLINECONSOLES]; |
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| 84 | |||
| 85 | /* |
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| 86 | * The interface for a console, or any other device that |
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| 87 | * wants to capture console messages (printer driver?) |
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| 88 | */ |
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| 89 | |||
| 90 | #define CON_PRINTBUFFER (1) |
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| 91 | #define CON_CONSDEV (2) /* Last on the command line */ |
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| 92 | #define CON_ENABLED (4) |
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| 93 | |||
| 94 | struct console |
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| 95 | { |
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| 96 | char name[8]; |
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| 97 | void (*write)(struct console *, const char *, unsigned); |
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| 98 | int (*read)(struct console *, char *, unsigned); |
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| 99 | struct tty_driver *(*device)(struct console *, int *); |
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| 100 | void (*unblank)(void); |
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| 101 | int (*setup)(struct console *, char *); |
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| 102 | short flags; |
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| 103 | short index; |
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| 104 | int cflag; |
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| 105 | void *data; |
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| 106 | struct console *next; |
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| 107 | }; |
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| 108 | |||
| 109 | extern void register_console(struct console *); |
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| 110 | extern int unregister_console(struct console *); |
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| 111 | extern struct console *console_drivers; |
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| 112 | extern void acquire_console_sem(void); |
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| 113 | extern void release_console_sem(void); |
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| 114 | extern void console_conditional_schedule(void); |
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| 115 | extern void console_unblank(void); |
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| 116 | |||
| 117 | /* VESA Blanking Levels */ |
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| 118 | #define VESA_NO_BLANKING 0 |
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| 119 | #define VESA_VSYNC_SUSPEND 1 |
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| 120 | #define VESA_HSYNC_SUSPEND 2 |
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| 121 | #define VESA_POWERDOWN 3 |
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| 122 | |||
| 123 | #endif /* _LINUX_CONSOLE_H */ |