forked from Archive/PX4-Autopilot
255 lines
9.3 KiB
C
255 lines
9.3 KiB
C
/****************************************************************************
|
|
* nuttx/graphics/nxconsole/nxcon_internal.h
|
|
*
|
|
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* 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.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
|
|
* COPYRIGHT OWNER 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __GRAPHICS_NXCONSOLE_NXCON_INTERNAL_H
|
|
#define __GRAPHICS_NXCONSOLE_NXCON_INTERNAL_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
#include <semaphore.h>
|
|
|
|
#include <nuttx/fs/fs.h>
|
|
|
|
#include <nuttx/nx/nx.h>
|
|
#include <nuttx/nx/nxtk.h>
|
|
#include <nuttx/nx/nxfonts.h>
|
|
#include <nuttx/nx/nxconsole.h>
|
|
|
|
/****************************************************************************
|
|
* Definitions
|
|
****************************************************************************/
|
|
/* NxConsole Definitions ****************************************************/
|
|
/* Bitmap flags */
|
|
|
|
#define BMFLAGS_NOGLYPH (1 << 0) /* No glyph available, use space */
|
|
#define BM_ISSPACE(bm) (((bm)->flags & BMFLAGS_NOGLYPH) != 0)
|
|
|
|
/* Sizes and maximums */
|
|
|
|
#define MAX_USECNT 255 /* Limit to range of a uint8_t */
|
|
|
|
/* Device path formats */
|
|
|
|
#define NX_DEVNAME_FORMAT "/dev/nxcon%d"
|
|
#define NX_DEVNAME_SIZE 16
|
|
|
|
/* Semaphore protection */
|
|
|
|
#define NO_HOLDER (pid_t)-1
|
|
|
|
/* VT100 escape sequence processing */
|
|
|
|
#define VT100_MAX_SEQUENCE 3
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
/* Identifies the state of the VT100 escape sequence processing */
|
|
|
|
enum nxcon_vt100state_e
|
|
{
|
|
VT100_NOT_CONSUMED = 0, /* Character is not part of a VT100 escape sequence */
|
|
VT100_CONSUMED, /* Character was consumed as part of the VT100 escape processing */
|
|
VT100_PROCESSED, /* The full VT100 escape sequence was processed */
|
|
VT100_ABORT /* Invalid/unsupported character in buffered escape sequence */
|
|
};
|
|
|
|
/* Describes on set of console window callbacks */
|
|
|
|
struct nxcon_state_s;
|
|
struct nxcon_operations_s
|
|
{
|
|
int (*fill)(FAR struct nxcon_state_s *priv,
|
|
FAR const struct nxgl_rect_s *rect,
|
|
nxgl_mxpixel_t wcolor[CONFIG_NX_NPLANES]);
|
|
#ifndef CONFIG_NX_WRITEONLY
|
|
int (*move)(FAR struct nxcon_state_s *priv,
|
|
FAR const struct nxgl_rect_s *rect,
|
|
FAR const struct nxgl_point_s *offset);
|
|
#endif
|
|
int (*bitmap)(FAR struct nxcon_state_s *priv,
|
|
FAR const struct nxgl_rect_s *dest,
|
|
FAR const void *src[CONFIG_NX_NPLANES],
|
|
FAR const struct nxgl_point_s *origin,
|
|
unsigned int stride);
|
|
};
|
|
|
|
/* Describes one cached glyph bitmap */
|
|
|
|
struct nxcon_glyph_s
|
|
{
|
|
uint8_t code; /* Character code */
|
|
uint8_t height; /* Height of this glyph (in rows) */
|
|
uint8_t width; /* Width of this glyph (in pixels) */
|
|
uint8_t stride; /* Width of the glyph row (in bytes) */
|
|
uint8_t usecnt; /* Use count */
|
|
FAR uint8_t *bitmap; /* Allocated bitmap memory */
|
|
};
|
|
|
|
/* Describes on character on the display */
|
|
|
|
struct nxcon_bitmap_s
|
|
{
|
|
uint8_t code; /* Character code */
|
|
uint8_t flags; /* See BMFLAGS_* */
|
|
struct nxgl_point_s pos; /* Character position */
|
|
};
|
|
|
|
/* Describes the state of one NX console driver*/
|
|
|
|
struct nxcon_state_s
|
|
{
|
|
FAR const struct nxcon_operations_s *ops; /* Window operations */
|
|
FAR void *handle; /* The window handle */
|
|
FAR struct nxcon_window_s wndo; /* Describes the window and font */
|
|
NXHANDLE font; /* The current font handle */
|
|
sem_t exclsem; /* Forces mutually exclusive access */
|
|
#ifdef CONFIG_DEBUG
|
|
pid_t holder; /* Deadlock avoidance */
|
|
#endif
|
|
uint8_t minor; /* Device minor number */
|
|
|
|
/* Text output support */
|
|
|
|
uint8_t fheight; /* Max height of a font in pixels */
|
|
uint8_t fwidth; /* Max width of a font in pixels */
|
|
uint8_t spwidth; /* The width of a space */
|
|
uint8_t maxglyphs; /* Size of the glyph[] array */
|
|
|
|
uint16_t maxchars; /* Size of the bm[] array */
|
|
uint16_t nchars; /* Number of chars in the bm[] array */
|
|
|
|
struct nxgl_point_s fpos; /* Next display position */
|
|
|
|
/* VT100 escape sequence processing */
|
|
|
|
char seq[VT100_MAX_SEQUENCE]; /* Buffered characters */
|
|
uint8_t nseq; /* Number of buffered characters */
|
|
|
|
/* Font cache data storage */
|
|
|
|
struct nxcon_bitmap_s cursor;
|
|
struct nxcon_bitmap_s bm[CONFIG_NXCONSOLE_MXCHARS];
|
|
|
|
/* Glyph cache data storage */
|
|
|
|
struct nxcon_glyph_s glyph[CONFIG_NXCONSOLE_CACHESIZE];
|
|
|
|
/* Keyboard input support */
|
|
|
|
#ifdef CONFIG_NXCONSOLE_NXKBDIN
|
|
sem_t waitsem; /* Supports waiting for input data */
|
|
uint8_t nwaiters; /* Number of threads waiting for data */
|
|
uint8_t head; /* rxbuffer head/input index */
|
|
uint8_t tail; /* rxbuffer tail/output index */
|
|
|
|
uint8_t rxbuffer[CONFIG_NXCONSOLE_KBDBUFSIZE];
|
|
|
|
/* The following is a list if poll structures of threads waiting for
|
|
* driver events. The 'struct pollfd' reference for each open is also
|
|
* retained in the f_priv field of the 'struct file'.
|
|
*/
|
|
|
|
#ifndef CONFIG_DISABLE_POLL
|
|
struct pollfd *fds[CONFIG_RAMLOG_NPOLLWAITERS];
|
|
#endif
|
|
#endif /* CONFIG_NXCONSOLE_NXKBDIN */
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Variables
|
|
****************************************************************************/
|
|
|
|
/* This is the common NX driver file operations */
|
|
|
|
extern const struct file_operations g_nxcon_drvrops;
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
/* Semaphore helpers */
|
|
|
|
#ifdef CONFIG_DEBUG
|
|
int nxcon_semwait(FAR struct nxcon_state_s *priv);
|
|
int nxcon_sempost(FAR struct nxcon_state_s *priv);
|
|
#else
|
|
# define nxcon_semwait(p) sem_wait(&p->exclsem)
|
|
# define nxcon_sempost(p) sem_post(&p->exclsem)
|
|
#endif
|
|
|
|
/* Common device registration */
|
|
|
|
FAR struct nxcon_state_s *nxcon_register(NXCONSOLE handle,
|
|
FAR struct nxcon_window_s *wndo, FAR const struct nxcon_operations_s *ops,
|
|
int minor);
|
|
|
|
#ifdef CONFIG_NXCONSOLE_NXKBDIN
|
|
ssize_t nxcon_read(FAR struct file *filep, FAR char *buffer, size_t len);
|
|
#ifndef CONFIG_DISABLE_POLL
|
|
int nxcon_poll(FAR struct file *filep, FAR struct pollfd *fds, bool setup);
|
|
#endif
|
|
#endif
|
|
|
|
/* VT100 Terminal emulation */
|
|
|
|
enum nxcon_vt100state_e nxcon_vt100(FAR struct nxcon_state_s *priv, char ch);
|
|
|
|
/* Generic text display helpers */
|
|
|
|
void nxcon_home(FAR struct nxcon_state_s *priv);
|
|
void nxcon_newline(FAR struct nxcon_state_s *priv);
|
|
FAR const struct nxcon_bitmap_s *nxcon_addchar(NXHANDLE hfont,
|
|
FAR struct nxcon_state_s *priv, uint8_t ch);
|
|
int nxcon_hidechar(FAR struct nxcon_state_s *priv,
|
|
FAR const struct nxcon_bitmap_s *bm);
|
|
int nxcon_backspace(FAR struct nxcon_state_s *priv);
|
|
void nxcon_fillchar(FAR struct nxcon_state_s *priv,
|
|
FAR const struct nxgl_rect_s *rect, FAR const struct nxcon_bitmap_s *bm);
|
|
|
|
void nxcon_putc(FAR struct nxcon_state_s *priv, uint8_t ch);
|
|
void nxcon_showcursor(FAR struct nxcon_state_s *priv);
|
|
void nxcon_hidecursor(FAR struct nxcon_state_s *priv);
|
|
|
|
/* Scrolling support */
|
|
|
|
void nxcon_scroll(FAR struct nxcon_state_s *priv, int scrollheight);
|
|
|
|
#endif /* __GRAPHICS_NXCONSOLE_NXCON_INTERNAL_H */
|