2017-05-07 02:14:44 -04:00
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/*
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2022-11-13 16:37:58 -05:00
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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2017-05-07 02:14:44 -04:00
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*
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2022-11-13 16:37:58 -05:00
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* This file is part of the 86Box distribution.
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2017-05-07 02:14:44 -04:00
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*
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2022-11-13 16:37:58 -05:00
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* Definitions for the NS8250/16450/16550/16650/16750/16850/16950
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* UART emulation.
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2017-05-07 02:14:44 -04:00
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*
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2020-03-25 00:46:02 +02:00
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*
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2017-05-07 02:14:44 -04:00
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*
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2023-01-06 15:36:29 -05:00
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* Authors: Sarah Walker, <https://pcem-emulator.co.uk/>
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2022-11-13 16:37:58 -05:00
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* Miran Grca, <mgrca8@gmail.com>
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* Fred N. van Kempen, <decwiz@yahoo.com>
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2019-10-11 19:59:05 +02:00
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*
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2022-11-13 16:37:58 -05:00
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* Copyright 2008-2020 Sarah Walker.
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* Copyright 2016-2020 Miran Grca.
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* Copyright 2017-2020 Fred N. van Kempen.
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2017-05-07 02:14:44 -04:00
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*/
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2022-02-18 19:42:21 -05:00
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2017-06-04 02:11:19 -04:00
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#ifndef EMU_SERIAL_H
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2022-07-27 17:00:34 -04:00
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#define EMU_SERIAL_H
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2017-05-07 02:14:44 -04:00
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2022-07-27 17:00:34 -04:00
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#define SERIAL_8250 0
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#define SERIAL_8250_PCJR 1
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#define SERIAL_16450 2
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#define SERIAL_16550 3
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#define SERIAL_16650 4
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#define SERIAL_16750 5
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#define SERIAL_16850 6
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#define SERIAL_16950 7
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2018-11-08 19:21:55 +01:00
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2022-07-27 17:00:34 -04:00
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#define SERIAL_FIFO_SIZE 16
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2021-11-13 17:33:43 -05:00
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2017-05-07 02:14:44 -04:00
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/* Default settings for the standard ports. */
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2022-07-27 17:00:34 -04:00
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#define COM1_ADDR 0x03f8
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#define COM1_IRQ 4
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#define COM2_ADDR 0x02f8
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#define COM2_IRQ 3
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#define COM3_ADDR 0x03e8
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#define COM3_IRQ 4
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#define COM4_ADDR 0x02e8
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#define COM4_IRQ 3
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2017-06-17 03:31:11 -04:00
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2018-11-08 19:21:55 +01:00
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struct serial_device_s;
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struct serial_s;
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2017-05-07 02:14:44 -04:00
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2022-07-27 17:00:34 -04:00
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typedef struct serial_s {
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2023-06-26 12:47:04 -04:00
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uint8_t lsr;
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uint8_t thr;
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uint8_t mctrl;
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uint8_t rcr;
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uint8_t iir;
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uint8_t ier;
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uint8_t lcr;
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uint8_t msr;
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uint8_t dat;
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uint8_t int_status;
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uint8_t scratch;
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uint8_t fcr;
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uint8_t irq;
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uint8_t type;
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uint8_t inst;
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uint8_t transmit_enabled;
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uint8_t fifo_enabled;
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uint8_t bits;
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uint8_t data_bits;
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uint8_t baud_cycles;
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uint8_t txsr;
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2023-08-18 05:57:32 +02:00
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uint8_t txsr_empty;
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2023-06-26 12:47:04 -04:00
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uint8_t msr_set;
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2023-08-07 03:04:52 +02:00
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uint8_t irq_state;
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Added the IBM 5161 ISA expansion for PC and XT;
Cleaned up the parallel port emulation, added IRQ support, and made enabling/disabling per port;
Added the Award 430NX and the Intel Classic/PCI (Alfredo, 420TX);
Finished the 586MC1;
Added 8087 emulation;
Moved Cyrix 6x86'es to the Dev branch;
Sanitized/cleaned up memregs.c/h and intel.c/h;
Split the chipsets from machines and sanitized Port 92 emulation;
Added support for the 15bpp mode to the Compaq ATI 28800;
Moved the MR 386DX and 486 machines to the Dev branch;
Ported the new dynamic recompiler from PCem, but it remains in Dev branch until after v2.00;
Ported the new timer code from PCem;
Cleaned up the CPU table of unused stuff and better optimized its structure;
Ported the Open-XT and Open-AT from VARCem, the Open-AT is in the Dev branch;
Ported the XT MFM controller rewrite and adding of more controllers (incl. two RLL ones), from VARCem;
Added the AHA-1540A and the BusTek BT-542B;
Moved the Sumo SCSI-AT to the Dev branch;
Minor IDE, FDC, and floppy drive code clean-ups;
Made NCR 5380/53C400-based cards' BIOS address configurable;
Got rid of the legacy romset variable;
Unified (video) buffer and buffer32 into one and make the unified buffer 32-bit;
Added the Amstead PPC512 per PCem patch by John Elliott;
Switched memory mapping granularity from 16k to 4k (less than 1k not possible due to internal pages);
Rewrote the CL-GD 54xx blitter, fixes Win-OS/2 on the 54x6 among other thing;
Added the Image Manager 1024 and Professional Graphics Controller per PCem patch by John Elliott and work done on VARCem;
Added Headland HT-216, GC-205 and Video 7 VGA 1024i emulation based on PCem commit;
Implemented the fuction keys for the Toshiba T1000/T1200/T3100 enhancement;
Amstrad MegaPC does now works correctly with non-internal graphics card;
The SLiRP code no longer casts a packed struct type to a non-packed struct type;
The Xi8088 and PB410a no longer hang on 86Box when PS/2 mouse is not present;
The S3 Virge on BeOS is no longer broken (was broken by build #1591);
OS/2 2.0 build 6.167 now sees key presses again;
Xi8088 now work on CGA again;
86F images converted from either the old or new variants of the HxC MFM format now work correctly;
Hardware interrupts with a vector of 0xFF are now handled correctly;
OPTi 495SX boards no longer incorrectly have 64 MB maximum RAM when 32 MB is correct;
Fixed VNC keyboard input bugs;
Fixed AT RTC periodic interrupt - Chicago 58s / 73f / 73g / 81 MIDI play no longer hangs with the build's own VTD driver;
Fixed mouse polling with internal mice - Amstrad and Olivetti mice now work correctly;
Triones ATAPI DMA driver now correctly reads a file at the end of a CD image with a sectors number not divisible by 4;
Compaq Portable now works with all graphics cards;
Fixed various MDSI Genius bugs;
Added segment limit checks and improved page fault checks for several CPU instructions - Memphis 15xx WINSETUP and Chicago 58s WINDISK.CPL no longer issue a GPF, and some S3 drivers that used to have glitches, now work correctly;
Further improved the 808x emulation, also fixes the noticably choppy sound when using 808x CPU's, also fixes #355;
OS/2 installer no logner locks up on splash screen on PS/2 Model 70 and 80, fixes #400.
Fixed several Amstead bugs, GEM no longer crashes on the Amstrad 1640, fixes #391.
Ported John Elliott's Amstrad fixes and improvement from PCem, and fixed the default language so it's correctly Engliish, fixes #278, fixes #389.
Fixed a minor IDE timing bug, fixes #388.
Fixed Toshiba T1000 RAM issues, fixes #379.
Fixed EGA/(S)VGA overscan border handling, fixes #378;
Got rid of the now long useless IDE channel 2 auto-removal, fixes #370;
Fixed the BIOS files used by the AMSTRAD PC1512, fixes #366;
Ported the Unicode CD image file name fix from VARCem, fixes #365;
Fixed high density floppy disks on the Xi8088, fixes #359;
Fixed some bugs in the Hercules emulation, fixes #346, fixes #358;
Fixed the SCSI hard disk mode sense pages, fixes #356;
Removed the AMI Unknown 386SX because of impossibility to identify the chipset, closes #349;
Fixed bugs in the serial mouse emulation, fixes #344;
Compiled 86Box binaries now include all the required .DLL's, fixes #341;
Made some combo boxes in the Settings dialog slightly wider, fixes #276.
2019-09-20 14:02:30 +02:00
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2023-06-26 12:47:04 -04:00
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uint16_t dlab;
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uint16_t base_address;
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uint16_t out_new;
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2023-08-18 05:57:32 +02:00
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uint16_t thr_empty;
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Added the IBM 5161 ISA expansion for PC and XT;
Cleaned up the parallel port emulation, added IRQ support, and made enabling/disabling per port;
Added the Award 430NX and the Intel Classic/PCI (Alfredo, 420TX);
Finished the 586MC1;
Added 8087 emulation;
Moved Cyrix 6x86'es to the Dev branch;
Sanitized/cleaned up memregs.c/h and intel.c/h;
Split the chipsets from machines and sanitized Port 92 emulation;
Added support for the 15bpp mode to the Compaq ATI 28800;
Moved the MR 386DX and 486 machines to the Dev branch;
Ported the new dynamic recompiler from PCem, but it remains in Dev branch until after v2.00;
Ported the new timer code from PCem;
Cleaned up the CPU table of unused stuff and better optimized its structure;
Ported the Open-XT and Open-AT from VARCem, the Open-AT is in the Dev branch;
Ported the XT MFM controller rewrite and adding of more controllers (incl. two RLL ones), from VARCem;
Added the AHA-1540A and the BusTek BT-542B;
Moved the Sumo SCSI-AT to the Dev branch;
Minor IDE, FDC, and floppy drive code clean-ups;
Made NCR 5380/53C400-based cards' BIOS address configurable;
Got rid of the legacy romset variable;
Unified (video) buffer and buffer32 into one and make the unified buffer 32-bit;
Added the Amstead PPC512 per PCem patch by John Elliott;
Switched memory mapping granularity from 16k to 4k (less than 1k not possible due to internal pages);
Rewrote the CL-GD 54xx blitter, fixes Win-OS/2 on the 54x6 among other thing;
Added the Image Manager 1024 and Professional Graphics Controller per PCem patch by John Elliott and work done on VARCem;
Added Headland HT-216, GC-205 and Video 7 VGA 1024i emulation based on PCem commit;
Implemented the fuction keys for the Toshiba T1000/T1200/T3100 enhancement;
Amstrad MegaPC does now works correctly with non-internal graphics card;
The SLiRP code no longer casts a packed struct type to a non-packed struct type;
The Xi8088 and PB410a no longer hang on 86Box when PS/2 mouse is not present;
The S3 Virge on BeOS is no longer broken (was broken by build #1591);
OS/2 2.0 build 6.167 now sees key presses again;
Xi8088 now work on CGA again;
86F images converted from either the old or new variants of the HxC MFM format now work correctly;
Hardware interrupts with a vector of 0xFF are now handled correctly;
OPTi 495SX boards no longer incorrectly have 64 MB maximum RAM when 32 MB is correct;
Fixed VNC keyboard input bugs;
Fixed AT RTC periodic interrupt - Chicago 58s / 73f / 73g / 81 MIDI play no longer hangs with the build's own VTD driver;
Fixed mouse polling with internal mice - Amstrad and Olivetti mice now work correctly;
Triones ATAPI DMA driver now correctly reads a file at the end of a CD image with a sectors number not divisible by 4;
Compaq Portable now works with all graphics cards;
Fixed various MDSI Genius bugs;
Added segment limit checks and improved page fault checks for several CPU instructions - Memphis 15xx WINSETUP and Chicago 58s WINDISK.CPL no longer issue a GPF, and some S3 drivers that used to have glitches, now work correctly;
Further improved the 808x emulation, also fixes the noticably choppy sound when using 808x CPU's, also fixes #355;
OS/2 installer no logner locks up on splash screen on PS/2 Model 70 and 80, fixes #400.
Fixed several Amstead bugs, GEM no longer crashes on the Amstrad 1640, fixes #391.
Ported John Elliott's Amstrad fixes and improvement from PCem, and fixed the default language so it's correctly Engliish, fixes #278, fixes #389.
Fixed a minor IDE timing bug, fixes #388.
Fixed Toshiba T1000 RAM issues, fixes #379.
Fixed EGA/(S)VGA overscan border handling, fixes #378;
Got rid of the now long useless IDE channel 2 auto-removal, fixes #370;
Fixed the BIOS files used by the AMSTRAD PC1512, fixes #366;
Ported the Unicode CD image file name fix from VARCem, fixes #365;
Fixed high density floppy disks on the Xi8088, fixes #359;
Fixed some bugs in the Hercules emulation, fixes #346, fixes #358;
Fixed the SCSI hard disk mode sense pages, fixes #356;
Removed the AMI Unknown 386SX because of impossibility to identify the chipset, closes #349;
Fixed bugs in the serial mouse emulation, fixes #344;
Compiled 86Box binaries now include all the required .DLL's, fixes #341;
Made some combo boxes in the Settings dialog slightly wider, fixes #276.
2019-09-20 14:02:30 +02:00
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2023-08-18 05:57:32 +02:00
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void *rcvr_fifo;
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void *xmit_fifo;
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2017-07-18 14:55:09 +02:00
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2023-06-26 12:47:04 -04:00
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pc_timer_t transmit_timer;
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pc_timer_t timeout_timer;
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pc_timer_t receive_timer;
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double clock_src;
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double transmit_period;
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2017-07-18 14:55:09 +02:00
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2022-07-27 17:00:34 -04:00
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struct serial_device_s *sd;
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2018-11-08 19:21:55 +01:00
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} serial_t;
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2017-07-18 14:55:09 +02:00
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2022-07-27 17:00:34 -04:00
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typedef struct serial_device_s {
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2023-08-21 20:26:11 -04:00
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void (*rcr_callback)(struct serial_s *serial, void *priv);
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2024-03-08 16:45:17 +06:00
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void (*dtr_callback)(struct serial_s *serial, int status, void *priv);
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2023-08-21 20:26:11 -04:00
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void (*dev_write)(struct serial_s *serial, void *priv, uint8_t data);
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void (*lcr_callback)(struct serial_s *serial, void *priv, uint8_t lcr);
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void (*transmit_period_callback)(struct serial_s *serial, void *priv, double transmit_period);
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void *priv;
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2018-11-08 19:21:55 +01:00
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serial_t *serial;
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} serial_device_t;
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2023-06-28 13:46:28 -04:00
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typedef struct serial_port_s {
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2022-07-28 16:50:49 -04:00
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uint8_t enabled;
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} serial_port_t;
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2022-09-18 17:15:38 -04:00
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extern serial_port_t com_ports[SERIAL_MAX];
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2022-07-28 16:50:49 -04:00
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2023-02-14 20:37:58 -05:00
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extern serial_t *serial_attach_ex(int port,
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2023-08-21 20:26:11 -04:00
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void (*rcr_callback)(struct serial_s *serial, void *priv),
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void (*dev_write)(struct serial_s *serial, void *priv, uint8_t data),
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void (*transmit_period_callback)(struct serial_s *serial, void *priv, double transmit_period),
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void (*lcr_callback)(struct serial_s *serial, void *priv, uint8_t data_bits),
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2023-02-14 20:37:58 -05:00
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void *priv);
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2023-08-07 17:41:13 +02:00
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2024-03-08 16:45:17 +06:00
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extern serial_t *serial_attach_ex_2(int port,
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void (*rcr_callback)(struct serial_s *serial, void *priv),
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void (*dev_write)(struct serial_s *serial, void *priv, uint8_t data),
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void (*dtr_callback)(struct serial_s *serial, int status, void *priv),
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void *priv);
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2023-08-07 17:41:13 +02:00
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#define serial_attach(port, rcr_callback, dev_write, priv) \
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serial_attach_ex(port, rcr_callback, dev_write, NULL, NULL, priv);
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2022-07-27 17:00:34 -04:00
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extern void serial_remove(serial_t *dev);
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extern void serial_set_type(serial_t *dev, int type);
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extern void serial_setup(serial_t *dev, uint16_t addr, uint8_t irq);
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extern void serial_clear_fifo(serial_t *dev);
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extern void serial_write_fifo(serial_t *dev, uint8_t dat);
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extern void serial_set_next_inst(int ni);
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extern void serial_standalone_init(void);
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extern void serial_set_clock_src(serial_t *dev, double clock_src);
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extern void serial_reset_port(serial_t *dev);
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2024-02-02 05:32:43 +01:00
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extern uint8_t serial_read(uint16_t addr, void *priv);
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2023-02-14 20:37:58 -05:00
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extern void serial_device_timeout(void *priv);
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2024-02-02 05:32:43 +01:00
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extern void serial_set_cts(serial_t *dev, uint8_t enabled);
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extern void serial_set_dsr(serial_t *dev, uint8_t enabled);
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extern void serial_set_dcd(serial_t *dev, uint8_t enabled);
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2024-03-08 16:45:17 +06:00
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extern void serial_set_ri(serial_t *dev, uint8_t enabled);
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2022-07-27 17:00:34 -04:00
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extern const device_t ns8250_device;
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extern const device_t ns8250_pcjr_device;
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extern const device_t ns16450_device;
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extern const device_t ns16550_device;
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extern const device_t ns16650_device;
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extern const device_t ns16750_device;
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extern const device_t ns16850_device;
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extern const device_t ns16950_device;
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#endif /*EMU_SERIAL_H*/
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