Bochs/bochs/iodev/serial.h

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/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001-2021 The Bochs Project
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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//
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#ifndef BX_IODEV_SERIAL_H
#define BX_IODEV_SERIAL_H
// Peter Grehan (grehan@iprg.nokia.com) coded most of this
// serial emulation.
#if BX_USE_SER_SMF
# define BX_SER_SMF static
Add plugin support to Bochs by merging all the changes from the BRANCH_PLUGINS branch! Authors: Bryce Denney Christophe Bothamy Kevin Lawton (we grabbed a lot of plugin code from plex86) Testing help from: Volker Ruppert Don Becker (Psyon) Jeremy Parsons (Br'fin) The change log is too long to paste in here. To read the change log, do cvs log patches/patch.final-from-BRANCH_PLUGINS.gz All the changes and a detailed description are contained in a patch called patch.final-from-BRANCH_PLUGINS.gz. To look at the complete patch, do cvs upd -r1.1 patches/patch.final-from-BRANCH_PLUGINS.gz Then you will have a local copy of the patch, which you can gunzip and play with however you want. Modified Files: .bochsrc Makefile.in aclocal.m4 bochs.h config.h.in configure configure.in gdbstub.cc logio.cc main.cc pc_system.cc pc_system.h state_file.h bios/Makefile.in bios/rombios.c cpu/Makefile.in cpu/access.cc cpu/apic.cc cpu/arith16.cc cpu/arith32.cc cpu/arith8.cc cpu/cpu.cc cpu/cpu.h cpu/ctrl_xfer32.cc cpu/exception.cc cpu/fetchdecode.cc cpu/fetchdecode64.cc cpu/flag_ctrl.cc cpu/flag_ctrl_pro.cc cpu/init.cc cpu/io.cc cpu/logical16.cc cpu/logical32.cc cpu/logical8.cc cpu/paging.cc cpu/proc_ctrl.cc cpu/protect_ctrl.cc cpu/segment_ctrl_pro.cc cpu/shift16.cc cpu/shift32.cc cpu/stack64.cc cpu/string.cc cpu/tasking.cc debug/Makefile.in debug/dbg_main.cc disasm/Makefile.in doc/docbook/user/user.dbk dynamic/Makefile.in fpu/Makefile.in gui/Makefile.in gui/amigaos.cc gui/beos.cc gui/carbon.cc gui/control.cc gui/control.h gui/gui.cc gui/gui.h gui/keymap.cc gui/keymap.h gui/macintosh.cc gui/nogui.cc gui/rfb.cc gui/sdl.cc gui/sdlkeys.h gui/siminterface.cc gui/siminterface.h gui/term.cc gui/win32.cc gui/wx.cc gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h gui/x.cc gui/keymaps/sdl-pc-de.map gui/keymaps/sdl-pc-us.map gui/keymaps/x11-pc-de.map instrument/example0/instrument.h instrument/example1/instrument.h instrument/stubs/instrument.cc instrument/stubs/instrument.h iodev/Makefile.in iodev/biosdev.cc iodev/biosdev.h iodev/cdrom.cc iodev/cmos.cc iodev/cmos.h iodev/devices.cc iodev/dma.cc iodev/dma.h iodev/eth_fbsd.cc iodev/eth_linux.cc iodev/eth_null.cc iodev/eth_tap.cc iodev/floppy.cc iodev/floppy.h iodev/guest2host.cc iodev/guest2host.h iodev/harddrv.cc iodev/harddrv.h iodev/iodebug.cc iodev/iodebug.h iodev/iodev.h iodev/keyboard.cc iodev/keyboard.h iodev/ne2k.cc iodev/ne2k.h iodev/parallel.cc iodev/parallel.h iodev/pci.cc iodev/pci.h iodev/pci2isa.cc iodev/pci2isa.h iodev/pic.cc iodev/pic.h iodev/pit.cc iodev/pit.h iodev/pit_wrap.cc iodev/pit_wrap.h iodev/sb16.cc iodev/sb16.h iodev/scancodes.cc iodev/scancodes.h iodev/serial.cc iodev/serial.h iodev/slowdown_timer.cc iodev/slowdown_timer.h iodev/unmapped.cc iodev/unmapped.h iodev/vga.cc iodev/vga.h memory/Makefile.in memory/memory.cc memory/memory.h memory/misc_mem.cc misc/bximage.c misc/niclist.c Added Files: README-plugins extplugin.h ltdl.c ltdl.h ltdlconf.h.in ltmain.sh plugin.cc plugin.h
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# define BX_SER_THIS theSerialDevice->
#else
# define BX_SER_SMF
# define BX_SER_THIS this->
#endif
#ifdef BX_SER_WIN32
#define SERIAL_ENABLE
#endif
#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) || defined(__APPLE__) || defined(__sun__) || defined(__CYGWIN__)
#define SERIAL_ENABLE
extern "C" {
#include <termios.h>
};
#endif
#define BX_SERIAL_MAXDEV 4
#define BX_PC_CLOCK_XTL 1843200.0
#define BX_SER_RXIDLE 0
#define BX_SER_RXPOLL 1
#define BX_SER_RXWAIT 2
#define BX_SER_THR 0
#define BX_SER_RBR 0
#define BX_SER_IER 1
#define BX_SER_IIR 2
#define BX_SER_FCR 2
#define BX_SER_LCR 3
#define BX_SER_MCR 4
#define BX_SER_LSR 5
#define BX_SER_MSR 6
#define BX_SER_SCR 7
#define BX_SER_MODE_NULL 0
#define BX_SER_MODE_FILE 1
#define BX_SER_MODE_TERM 2
#define BX_SER_MODE_RAW 3
#define BX_SER_MODE_MOUSE 4
#define BX_SER_MODE_SOCKET_CLIENT 5
#define BX_SER_MODE_SOCKET_SERVER 6
#define BX_SER_MODE_PIPE_CLIENT 7
#define BX_SER_MODE_PIPE_SERVER 8
enum {
BX_SER_INT_IER,
BX_SER_INT_RXDATA,
BX_SER_INT_TXHOLD,
BX_SER_INT_RXLSTAT,
BX_SER_INT_MODSTAT,
BX_SER_INT_FIFO
};
#if USE_RAW_SERIAL
class serial_raw;
#endif
typedef struct {
/*
* UART internal state
*/
bool ls_interrupt;
bool ms_interrupt;
bool rx_interrupt;
bool tx_interrupt;
bool fifo_interrupt;
bool ls_ipending;
bool ms_ipending;
bool rx_ipending;
bool fifo_ipending;
Bit8u IRQ;
Bit8u rx_fifo_end;
Bit8u tx_fifo_end;
int baudrate;
Bit32u databyte_usec;
int rx_timer_index;
int tx_timer_index;
int fifo_timer_index;
int io_mode;
int tty_id;
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SOCKET socket_id;
FILE *output;
bx_param_string_c *file;
#ifdef BX_SER_WIN32
HANDLE pipe;
#endif
#if USE_RAW_SERIAL
serial_raw* raw;
#endif
#if defined(SERIAL_ENABLE) && !defined(BX_SER_WIN32)
struct termios term_orig, term_new;
#endif
/*
* Register definitions
*/
Bit8u rxbuffer; /* receiver buffer register (r/o) */
Bit8u thrbuffer; /* transmit holding register (w/o) */
/* Interrupt Enable Register */
struct {
bool rxdata_enable; /* 1=enable receive data interrupts */
bool txhold_enable; /* 1=enable tx. holding reg. empty ints */
bool rxlstat_enable; /* 1=enable rx line status interrupts */
bool modstat_enable; /* 1=enable modem status interrupts */
} int_enable;
/* Interrupt Identification Register (r/o) */
struct {
bool ipending; /* 0=interrupt pending */
Bit8u int_ID; /* 3-bit interrupt ID */
} int_ident;
/* FIFO Control Register (w/o) */
struct {
bool enable; /* 1=enable tx and rx FIFOs */
Bit8u rxtrigger; /* 2-bit code for rx fifo trigger level */
} fifo_cntl;
/* Line Control Register (r/w) */
struct {
Bit8u wordlen_sel; /* 2-bit code for char length */
bool stopbits; /* select stop bit len */
bool parity_enable; /* ... */
bool evenparity_sel; /* ... */
bool stick_parity; /* ... */
bool break_cntl; /* 1=send break signal */
bool dlab; /* divisor latch access bit */
} line_cntl;
/* MODEM Control Register (r/w) */
struct {
bool dtr; /* DTR output value */
bool rts; /* RTS output value */
bool out1; /* OUTPUT1 value */
bool out2; /* OUTPUT2 value */
bool local_loopback; /* 1=loopback mode */
} modem_cntl;
/* Line Status Register (r/w) */
struct {
bool rxdata_ready; /* 1=receiver data ready */
bool overrun_error; /* 1=receive overrun detected */
bool parity_error; /* 1=rx char has a bad parity bit */
bool framing_error; /* 1=no stop bit detected for rx char */
bool break_int; /* 1=break signal detected */
bool thr_empty; /* 1=tx hold register (or fifo) is empty */
bool tsr_empty; /* 1=shift reg and hold reg empty */
bool fifo_error; /* 1=at least 1 err condition in fifo */
} line_status;
/* Modem Status Register (r/w) */
struct {
bool delta_cts; /* 1=CTS changed since last read */
bool delta_dsr; /* 1=DSR changed since last read */
bool ri_trailedge; /* 1=RI moved from low->high */
bool delta_dcd; /* 1=CD changed since last read */
bool cts; /* CTS input value */
bool dsr; /* DSR input value */
bool ri; /* RI input value */
bool dcd; /* DCD input value */
} modem_status;
Bit8u scratch; /* Scratch Register (r/w) */
Bit8u tsrbuffer; /* transmit shift register (internal) */
Bit8u rx_fifo[16]; /* receive FIFO (internal) */
Bit8u tx_fifo[16]; /* transmit FIFO (internal) */
Bit8u divisor_lsb; /* Divisor latch, least-sig. byte */
Bit8u divisor_msb; /* Divisor latch, most-sig. byte */
} bx_serial_t;
class bx_serial_c : public bx_devmodel_c {
public:
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bx_serial_c();
virtual ~bx_serial_c();
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virtual void init(void);
virtual void reset(unsigned type) {}
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virtual void register_state(void);
private:
bx_serial_t s[BX_SERIAL_MAXDEV];
int detect_mouse;
int mouse_port;
int mouse_type;
int mouse_delayed_dx;
int mouse_delayed_dy;
int mouse_delayed_dz;
Bit8u mouse_buttons;
bool mouse_update;
struct {
int num_elements;
Bit8u buffer[BX_MOUSE_BUFF_SIZE];
int head;
} mouse_internal_buffer;
static void lower_interrupt(Bit8u port);
static void raise_interrupt(Bit8u port, int type);
static void rx_fifo_enq(Bit8u port, Bit8u data);
static void tx_timer_handler(void *);
BX_SER_SMF void tx_timer(void);
static void rx_timer_handler(void *);
BX_SER_SMF void rx_timer(void);
static void fifo_timer_handler(void *);
BX_SER_SMF void fifo_timer(void);
static void mouse_enq_static(void *dev, int delta_x, int delta_y, int delta_z, unsigned button_state, bool absxy);
void mouse_enq(int delta_x, int delta_y, int delta_z, unsigned button_state, bool absxy);
void update_mouse_data(void);
static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
static void write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
#if !BX_USE_SER_SMF
Bit32u read(Bit32u address, unsigned io_len);
void write(Bit32u address, Bit32u value, unsigned io_len);
#endif
static const char* serial_file_param_handler(bx_param_string_c *param, bool set,
const char *oldval, const char *val,
int maxlen);
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};
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#endif