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Diffstat (limited to 'kstars/kstars/indi/webcam/port.h')
| -rw-r--r-- | kstars/kstars/indi/webcam/port.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/kstars/kstars/indi/webcam/port.h b/kstars/kstars/indi/webcam/port.h new file mode 100644 index 00000000..c5896858 --- /dev/null +++ b/kstars/kstars/indi/webcam/port.h @@ -0,0 +1,122 @@ +/* libcqcam - shared Color Quickcam routines + * Copyright (C) 1996-1998 by Patrick Reynolds + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +// I/O ports wrapper definitions and prototypes +// This file might need tweaking if you're trying to port my code to other +// x86 Unix platforms. Code is already available for Linux, FreeBSD, and +// QNX; see the Makefile. +// +// QNX code by: Anders Arpteg <aa11ac@hik.se> +// FreeBSD code by: Patrick Reynolds <reynolds@cs.duke.edu> and Charles +// Henrich <henrich@msu.edu> +// Inlining implemented by: Philip Blundell <philip.blundell@pobox.com> + +#ifndef PORT_H +#define PORT_H + +//#include "config.h" + +#include <unistd.h> + +#ifdef __linux__ + #if !defined(arm) && !defined(__hppa__) && !defined(__sparc__) && !defined(__ppc__) && !defined(__powerpc__) && !defined(__s390__) && !defined(__s390x__) && !defined(__mips__) && !defined(__mc68000__) + #include <sys/io.h> + #endif /* !arm */ +#elif defined(QNX) +#include <conio.h> +#elif defined(__FreeBSD__) +#include <machine/cpufunc.h> +#include <stdio.h> +#elif defined(BSDI) +#include <machine/inline.h> +#elif defined(OPENBSD) +#include <machine/pio.h> +#elif defined(LYNX) +#include "lynx-io.h" +#elif defined(SOLARIS) +#include "solaris-io.h" +#else +#error Please define a platform in the Makefile +#endif + +#if defined(arm) || defined(__hppa__) || defined(__sparc__) || defined(__ppc__) || defined(__powerpc__) || defined(__s390__) || defined(__s390x__) || defined(__mips__) || defined(__mc68000__) +static char ports_temp; + +#ifdef inb +#undef inb +#endif /* inb */ +#define inb(port) \ + lseek(devport, port, SEEK_SET), \ + read(devport, &ports_temp, 1), \ + ports_temp + +#ifdef outb +#undef outb +#endif /* inb */ +#define outb(data, port) \ + lseek(devport, port, SEEK_SET); \ + ports_temp = data; \ + write(devport, &ports_temp, 1); + +#endif /* arm, hppa */ + +class port_t { +public: + port_t(int iport); + ~port_t(void); + + inline int read_data(void) { return inb(port); } + inline int read_status(void) { return inb(port1); } + inline int read_control(void) { return inb(port2); } + +#if defined(LINUX) || defined(LYNX) + inline void write_data(int data) { outb(data, port); } + inline void write_control(int data) { outb(control_reg = data, port2); } + inline void setbit_control(int data) { outb(control_reg |= data, port2); } + inline void clearbit_control(int data) { outb(control_reg &= ~data, port2); } +#else // Solaris, QNX, and *BSD use (port, data) instead + inline void write_data(int data) { outb(port, data); } + inline void write_control(int data) { outb(port2, control_reg = data); } + inline void setbit_control(int data) { outb(port2, control_reg |= data); } + inline void clearbit_control(int data) { outb(port2, control_reg &= ~data); } +#endif + + inline int get_port() { return port; } + inline operator bool () const { return port != -1; } + +private: + int port; // number of the base port + int port1; // port+1, precalculated for speed + int port2; // port+2, precalculated for speed + int control_reg; // current contents of the control register +#ifdef LOCKING + int lock_fd; + int lock(int portnum); + void unlock(int portnum); +#endif + +#ifdef FREEBSD + FILE *devio; +#endif +#if defined(__linux__) && (defined(arm) || defined(__hppa__) || defined(__sparc__) || defined(__ppc__) || defined(__powerpc__) || defined(__s390__) || defined(__s390x__) || defined(__mips__) || defined(__mc68000__)) + int devport; +#endif +}; + +#endif |