/*- * Copyright (c) 2009, 2013 The FreeBSD Foundation * All rights reserved. * * This software was developed by Ed Schouten under sponsorship from the * FreeBSD Foundation. * * Portions of this software were developed by Oleksandr Rybalko * under sponsorship from the FreeBSD Foundation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _DEV_VT_VT_H_ #define _DEV_VT_VT_H_ #include #include #include #include #include #include #include #include #include #include #include "opt_syscons.h" #include "opt_splash.h" #ifndef VT_MAXWINDOWS #ifdef MAXCONS #define VT_MAXWINDOWS MAXCONS #else #define VT_MAXWINDOWS 12 #endif #endif #ifndef VT_ALT_TO_ESC_HACK #define VT_ALT_TO_ESC_HACK 1 #endif #define VT_CONSWINDOW 0 #if defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE) #define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON3DOWN /* right button */ #define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON2DOWN /* not really used */ #else #define VT_MOUSE_PASTEBUTTON MOUSE_BUTTON2DOWN /* middle button */ #define VT_MOUSE_EXTENDBUTTON MOUSE_BUTTON3DOWN /* right button */ #endif /* defined(SC_TWOBUTTON_MOUSE) || defined(VT_TWOBUTTON_MOUSE) */ #define SC_DRIVER_NAME "vt" #define DPRINTF(_l, ...) if (vt_debug > (_l)) printf( __VA_ARGS__ ) #define ISSIGVALID(sig) ((sig) > 0 && (sig) < NSIG) #define VT_SYSCTL_INT(_name, _default, _descr) \ static int vt_##_name = _default; \ SYSCTL_INT(_kern_vt, OID_AUTO, _name, CTLFLAG_RW, &vt_##_name, _default,\ _descr); \ TUNABLE_INT("kern.vt." #_name, &vt_##_name); struct vt_driver; void vt_allocate(struct vt_driver *, void *); void vt_resume(void); void vt_suspend(void); typedef unsigned int vt_axis_t; /* * List of locks * (d) locked by vd_lock * (b) locked by vb_lock * (G) locked by Giant * (u) unlocked, locked by higher levels * (c) const until freeing * (?) yet to be determined */ /* * Per-device datastructure. */ struct vt_device { struct vt_window *vd_windows[VT_MAXWINDOWS]; /* (c) Windows. */ struct vt_window *vd_curwindow; /* (d) Current window. */ struct vt_window *vd_savedwindow;/* (?) Saved for suspend. */ struct vt_window *vd_markedwin; /* (?) Copy/paste buf owner. */ const struct vt_driver *vd_driver; /* (c) Graphics driver. */ void *vd_softc; /* (u) Driver data. */ uint16_t vd_mx; /* (?) Mouse X. */ uint16_t vd_my; /* (?) Mouse Y. */ vt_axis_t vd_mdirtyx; /* (?) Screen width. */ vt_axis_t vd_mdirtyy; /* (?) Screen height. */ uint32_t vd_mstate; /* (?) Mouse state. */ term_pos_t vd_offset; /* (?) Pixel offset. */ vt_axis_t vd_width; /* (?) Screen width. */ vt_axis_t vd_height; /* (?) Screen height. */ struct mtx vd_lock; /* Per-device lock. */ struct cv vd_winswitch; /* (d) Window switch notify. */ struct callout vd_timer; /* (d) Display timer. */ int vd_flags; /* (d) Device flags. */ #define VDF_TEXTMODE 0x01 /* Do text mode rendering. */ #define VDF_SPLASH 0x02 /* Splash screen active. */ #define VDF_ASYNC 0x04 /* vt_timer() running. */ #define VDF_INVALID 0x08 /* Entire screen should be re-rendered. */ #define VDF_DEAD 0x10 /* Early probing found nothing. */ #define VDF_INITIALIZED 0x20 /* vtterm_cnprobe already done. */ #define VDF_MOUSECURSOR 0x40 /* Mouse cursor visible. */ int vd_keyboard; /* (G) Keyboard index. */ unsigned int vd_kbstate; /* (?) Device unit. */ unsigned int vd_unit; /* (c) Device unit. */ }; /* * Per-window terminal screen buffer. * * Because redrawing is performed asynchronously, the buffer keeps track * of a rectangle that needs to be redrawn (vb_dirtyrect). Because this * approach seemed to cause suboptimal performance (when the top left * and the bottom right of the screen are modified), it also uses a set * of bitmasks to keep track of the rows and columns (mod 64) that have * been modified. */ struct vt_bufmask { uint64_t vbm_row, vbm_col; #define VBM_DIRTY UINT64_MAX }; struct vt_buf { struct mtx vb_lock; /* Buffer lock. */ term_pos_t vb_scr_size; /* (b) Screen dimensions. */ int vb_flags; /* (b) Flags. */ #define VBF_CURSOR 0x1 /* Cursor visible. */ #define VBF_STATIC 0x2 /* Buffer is statically allocated. */ #define VBF_MTX_INIT 0x4 /* Mutex initialized. */ #define VBF_SCROLL 0x8 /* scroll locked mode. */ #define VBF_HISTORY_FULL 0x10 /* All rows filled. */ int vb_history_size; #define VBF_DEFAULT_HISTORY_SIZE 500 int vb_roffset; /* (b) History rows offset. */ int vb_curroffset; /* (b) Saved rows offset. */ term_pos_t vb_cursor; /* (u) Cursor position. */ term_pos_t vb_mark_start; /* (b) Copy region start. */ term_pos_t vb_mark_end; /* (b) Copy region end. */ int vb_mark_last; /* Last mouse event. */ term_rect_t vb_dirtyrect; /* (b) Dirty rectangle. */ struct vt_bufmask vb_dirtymask; /* (b) Dirty bitmasks. */ term_char_t *vb_buffer; /* (u) Data buffer. */ term_char_t **vb_rows; /* (u) Array of rows */ }; void vtbuf_copy(struct vt_buf *, const term_rect_t *, const term_pos_t *); void vtbuf_fill_locked(struct vt_buf *, const term_rect_t *, term_char_t); void vtbuf_init_early(struct vt_buf *); void vtbuf_init(struct vt_buf *, const term_pos_t *); void vtbuf_grow(struct vt_buf *, const term_pos_t *, int); void vtbuf_putchar(struct vt_buf *, const term_pos_t *, term_char_t); void vtbuf_cursor_position(struct vt_buf *, const term_pos_t *); void vtbuf_scroll_mode(struct vt_buf *vb, int yes); void vtbuf_undirty(struct vt_buf *, term_rect_t *, struct vt_bufmask *); void vtbuf_sethistory_size(struct vt_buf *, int); int vtbuf_iscursor(struct vt_buf *vb, int row, int col); void vtbuf_cursor_visibility(struct vt_buf *, int); #ifndef SC_NO_CUTPASTE void vtbuf_mouse_cursor_position(struct vt_buf *vb, int col, int row); int vtbuf_set_mark(struct vt_buf *vb, int type, int col, int row); int vtbuf_get_marked_len(struct vt_buf *vb); void vtbuf_extract_marked(struct vt_buf *vb, term_char_t *buf, int sz); #endif #define VTB_MARK_NONE 0 #define VTB_MARK_END 1 #define VTB_MARK_START 2 #define VTB_MARK_WORD 3 #define VTB_MARK_ROW 4 #define VTB_MARK_EXTEND 5 #define VTB_MARK_MOVE 6 #define VTBUF_SLCK_ENABLE(vb) vtbuf_scroll_mode((vb), 1) #define VTBUF_SLCK_DISABLE(vb) vtbuf_scroll_mode((vb), 0) #define VTBUF_MAX_HEIGHT(vb) \ ((vb)->vb_history_size) #define VTBUF_GET_ROW(vb, r) \ ((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)]) #define VTBUF_GET_FIELD(vb, r, c) \ ((vb)->vb_rows[((vb)->vb_roffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)]) #define VTBUF_FIELD(vb, r, c) \ ((vb)->vb_rows[((vb)->vb_curroffset + (r)) % VTBUF_MAX_HEIGHT(vb)][(c)]) #define VTBUF_ISCURSOR(vb, r, c) \ vtbuf_iscursor((vb), (r), (c)) #define VTBUF_DIRTYROW(mask, row) \ ((mask)->vbm_row & ((uint64_t)1 << ((row) % 64))) #define VTBUF_DIRTYCOL(mask, col) \ ((mask)->vbm_col & ((uint64_t)1 << ((col) % 64))) #define VTBUF_SPACE_CHAR (' ' | TC_WHITE << 26 | TC_BLACK << 29) #define VHS_SET 0 #define VHS_CUR 1 #define VHS_END 2 int vthistory_seek(struct vt_buf *, int offset, int whence); void vthistory_addlines(struct vt_buf *vb, int offset); void vthistory_getpos(const struct vt_buf *, unsigned int *offset); /* * Per-window datastructure. */ struct vt_window { struct vt_device *vw_device; /* (c) Device. */ struct terminal *vw_terminal; /* (c) Terminal. */ struct vt_buf vw_buf; /* (u) Screen buffer. */ struct vt_font *vw_font; /* (d) Graphical font. */ unsigned int vw_number; /* (c) Window number. */ int vw_kbdmode; /* (?) Keyboard mode. */ char *vw_kbdsq; /* Escape sequence queue*/ unsigned int vw_flags; /* (d) Per-window flags. */ #define VWF_BUSY 0x1 /* Busy reconfiguring device. */ #define VWF_OPENED 0x2 /* TTY in use. */ #define VWF_SCROLL 0x4 /* Keys influence scrollback. */ #define VWF_CONSOLE 0x8 /* Kernel message console window. */ #define VWF_VTYLOCK 0x10 /* Prevent window switch. */ #define VWF_MOUSE_HIDE 0x20 /* Disable mouse events processing. */ #define VWF_SWWAIT_REL 0x10000 /* Program wait for VT acquire is done. */ #define VWF_SWWAIT_ACQ 0x20000 /* Program wait for VT release is done. */ pid_t vw_pid; /* Terminal holding process */ struct proc *vw_proc; struct vt_mode vw_smode; /* switch mode */ struct callout vw_proc_dead_timer; struct vt_window *vw_switch_to; }; #define VT_AUTO 0 /* switching is automatic */ #define VT_PROCESS 1 /* switching controlled by prog */ #define VT_KERNEL 255 /* switching controlled in kernel */ #define IS_VT_PROC_MODE(vw) ((vw)->vw_smode.mode == VT_PROCESS) /* * Per-device driver routines. * * vd_bitbltchr is used when the driver operates in graphics mode, while * vd_putchar is used when the driver operates in text mode * (VDF_TEXTMODE). */ typedef int vd_init_t(struct vt_device *vd); typedef void vd_postswitch_t(struct vt_device *vd); typedef void vd_blank_t(struct vt_device *vd, term_color_t color); typedef void vd_bitbltchr_t(struct vt_device *vd, const uint8_t *src, const uint8_t *mask, int bpl, vt_axis_t top, vt_axis_t left, unsigned int width, unsigned int height, term_color_t fg, term_color_t bg); typedef void vd_putchar_t(struct vt_device *vd, term_char_t, vt_axis_t top, vt_axis_t left, term_color_t fg, term_color_t bg); struct vt_driver { /* Console attachment. */ vd_init_t *vd_init; /* Drawing. */ vd_blank_t *vd_blank; vd_bitbltchr_t *vd_bitbltchr; /* Text mode operation. */ vd_putchar_t *vd_putchar; /* Update display setting on vt switch. */ vd_postswitch_t *vd_postswitch; /* Priority to know which one can override */ int vd_priority; #define VD_PRIORITY_DUMB 10 #define VD_PRIORITY_GENERIC 100 #define VD_PRIORITY_SPECIFIC 1000 }; /* * Console device madness. * * Utility macro to make early vt(4) instances work. */ extern const struct terminal_class vt_termclass; void vt_upgrade(struct vt_device *vd); #define PIXEL_WIDTH(w) ((w) / 8) #define PIXEL_HEIGHT(h) ((h) / 16) #ifndef VT_FB_DEFAULT_WIDTH #define VT_FB_DEFAULT_WIDTH 640 #endif #ifndef VT_FB_DEFAULT_HEIGHT #define VT_FB_DEFAULT_HEIGHT 480 #endif #define VT_CONSDEV_DECLARE(driver, width, height, softc) \ static struct terminal driver ## _consterm; \ static struct vt_window driver ## _conswindow; \ static struct vt_device driver ## _consdev = { \ .vd_driver = &driver, \ .vd_softc = (softc), \ .vd_flags = VDF_INVALID, \ .vd_windows = { [VT_CONSWINDOW] = &driver ## _conswindow, }, \ .vd_curwindow = &driver ## _conswindow, \ .vd_markedwin = NULL, \ .vd_kbstate = 0, \ }; \ static term_char_t driver ## _constextbuf[(width) * \ (VBF_DEFAULT_HISTORY_SIZE)]; \ static term_char_t *driver ## _constextbufrows[ \ VBF_DEFAULT_HISTORY_SIZE]; \ static struct vt_window driver ## _conswindow = { \ .vw_number = VT_CONSWINDOW, \ .vw_flags = VWF_CONSOLE, \ .vw_buf = { \ .vb_buffer = driver ## _constextbuf, \ .vb_rows = driver ## _constextbufrows, \ .vb_history_size = VBF_DEFAULT_HISTORY_SIZE, \ .vb_curroffset = 0, \ .vb_roffset = 0, \ .vb_flags = VBF_STATIC, \ .vb_mark_start = { \ .tp_row = 0, \ .tp_col = 0, \ }, \ .vb_mark_end = { \ .tp_row = 0, \ .tp_col = 0, \ }, \ .vb_scr_size = { \ .tp_row = height, \ .tp_col = width, \ }, \ }, \ .vw_device = &driver ## _consdev, \ .vw_terminal = &driver ## _consterm, \ .vw_kbdmode = K_XLATE, \ }; \ TERMINAL_DECLARE_EARLY(driver ## _consterm, vt_termclass, \ &driver ## _conswindow); \ SYSINIT(vt_early_cons, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_ANY, \ vt_upgrade, &driver ## _consdev) /* * Fonts. * * Remapping tables are used to map Unicode points to glyphs. They need * to be sorted, because vtfont_lookup() performs a binary search. Each * font has two remapping tables, for normal and bold. When a character * is not present in bold, it uses a normal glyph. When no glyph is * available, it uses glyph 0, which is normally equal to U+FFFD. */ struct vt_font_map { uint32_t vfm_src; uint16_t vfm_dst; uint16_t vfm_len; }; struct vt_font { struct vt_font_map *vf_bold; struct vt_font_map *vf_normal; uint8_t *vf_bytes; unsigned int vf_height, vf_width, vf_normal_length, vf_bold_length; unsigned int vf_refcount; }; #ifndef SC_NO_CUTPASTE struct mouse_cursor { uint8_t map[64 * 64 / 8]; uint8_t mask[64 * 64 / 8]; uint8_t w; uint8_t h; }; #endif const uint8_t *vtfont_lookup(const struct vt_font *vf, term_char_t c); struct vt_font *vtfont_ref(struct vt_font *vf); void vtfont_unref(struct vt_font *vf); int vtfont_load(vfnt_t *f, struct vt_font **ret); /* Sysmouse. */ void sysmouse_process_event(mouse_info_t *mi); #ifndef SC_NO_CUTPASTE void vt_mouse_event(int type, int x, int y, int event, int cnt); void vt_mouse_state(int show); #endif #define VT_MOUSE_SHOW 1 #define VT_MOUSE_HIDE 0 #endif /* !_DEV_VT_VT_H_ */