Add: working serial port output driver
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*.o
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*.o
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bochslog.txt
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275
bochslog.txt
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bochslog.txt
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00000000000i[ ] Bochs x86 Emulator 2.7
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00000000000i[ ] Built from SVN snapshot on August 1, 2021
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00000000000i[ ] Timestamp: Sun Aug 1 10:07:00 CEST 2021
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00000000000i[ ] System configuration
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||||||
00000000000i[ ] processors: 1 (cores=1, HT threads=1)
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00000000000i[ ] A20 line support: yes
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||||||
00000000000i[ ] IPS is set to 1000000
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00000000000i[ ] CPU configuration
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||||||
00000000000i[ ] SMP support: yes, quantum=16
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||||||
00000000000i[ ] level: 6
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||||||
00000000000i[ ] APIC support: xapic
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||||||
00000000000i[ ] FPU support: yes
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||||||
00000000000i[ ] MMX support: yes
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||||||
00000000000i[ ] 3dnow! support: yes
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||||||
00000000000i[ ] SEP support: yes
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||||||
00000000000i[ ] SIMD support: sse2
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||||||
00000000000i[ ] XSAVE support: no
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||||||
00000000000i[ ] AES support: no
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||||||
00000000000i[ ] SHA support: no
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||||||
00000000000i[ ] MOVBE support: no
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||||||
00000000000i[ ] ADX support: no
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||||||
00000000000i[ ] x86-64 support: yes
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00000000000i[ ] 1G paging support: no
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||||||
00000000000i[ ] MWAIT support: yes
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||||||
00000000000i[ ] VMX support: 1
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||||||
00000000000i[ ] SVM support: no
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||||||
00000000000i[ ] Optimization configuration
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||||||
00000000000i[ ] RepeatSpeedups support: yes
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00000000000i[ ] Fast function calls: yes
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||||||
00000000000i[ ] Handlers Chaining speedups: no
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00000000000i[ ] Devices configuration
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||||||
00000000000i[ ] PCI support: i440FX i430FX i440BX
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00000000000i[ ] Network devices support: NE2000 E1000
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00000000000i[ ] Sound support: SB16 ES1370
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00000000000i[ ] USB support: UHCI OHCI EHCI xHCI
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00000000000i[ ] VGA extension support: vbe cirrus voodoo
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00000000000i[IMG ] Disk image modules
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00000000000i[IMG ] flat concat sparse dll growing undoable volatile vpc
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00000000000i[IMG ] vmware3 vmware4 vbox vvfat
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00000000000i[NETCTL] Networking modules
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00000000000i[NETCTL] null vde vnet linux socket tuntap slirp
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00000000000i[SNDCTL] Sound drivers
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00000000000i[SNDCTL] dummy oss file alsa sdl
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00000000000i[USBCTL] Pluggable USB devices
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00000000000i[USBCTL] mouse tablet keypad keyboard floppy disk cdrom printer
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00000000000i[USBCTL] hub
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00000000000i[MEM0 ] allocated memory at 0x7fb8f1ddd010. after alignment, vector=0x7fb8f1dde000
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00000000000i[MEM0 ] 32.00MB
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00000000000i[MEM0 ] mem block size = 0x00020000, blocks=256
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00000000000i[MEM0 ] rom at 0xffff0000/65536 ('/usr/share/bochs/BIOS-bochs-legacy')
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00000000000i[CPU0 ] WARNING: 3DNow! is not implemented yet !
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00000000000i[DEV ] will paste characters every 100 iodev timer ticks
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00000000000i[ ] lt_dlhandle is 0x5638a94a38b0
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00000000000i[PLUGIN] loaded plugin libbx_soundalsa.so
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00000000000i[WAVOUT] ALSA: opened default PCM output device
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00000000000i[WAVOUT] changed sample rate to 44101
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00000000000i[ ] lt_dlhandle is 0x5638a9c59430
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00000000000i[PLUGIN] loaded plugin libbx_pci.so
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00000000000i[ ] lt_dlhandle is 0x5638a94a3990
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00000000000i[PLUGIN] loaded plugin libbx_pci2isa.so
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00000000000i[ ] lt_dlhandle is 0x5638a9421ac0
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00000000000i[PLUGIN] loaded plugin libbx_usb_uhci.so
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00000000000i[ ] lt_dlhandle is 0x5638a94bdfc0
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00000000000i[PLUGIN] loaded plugin libbx_acpi.so
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00000000000i[ ] lt_dlhandle is 0x5638a9420ec0
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00000000000i[PLUGIN] loaded plugin libbx_hpet.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c63be0
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00000000000i[PLUGIN] loaded plugin libbx_cmos.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c643f0
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00000000000i[PLUGIN] loaded plugin libbx_dma.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c64d60
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00000000000i[PLUGIN] loaded plugin libbx_pic.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c65520
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00000000000i[PLUGIN] loaded plugin libbx_pit.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c65f40
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00000000000i[PLUGIN] loaded plugin libbx_vga.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c87580
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00000000000i[PLUGIN] loaded plugin libbx_floppy.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c87dc0
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00000000000i[PLUGIN] loaded plugin libbx_ioapic.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c885d0
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00000000000i[PLUGIN] loaded plugin libbx_keyboard.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c88ed0
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00000000000i[PLUGIN] loaded plugin libbx_harddrv.so
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00000000000i[ ] lt_dlhandle is 0x5638a9c8afa0
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00000000000i[PLUGIN] loaded plugin libbx_pci_ide.so
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00000000000i[PLUGIN] init_dev of 'pci' plugin device by virtual method
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00000000000i[DEV ] i440FX PMC present at device 0, function 0
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00000000000i[PLUGIN] init_dev of 'pci2isa' plugin device by virtual method
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00000000000i[DEV ] PIIX3 PCI-to-ISA bridge present at device 1, function 0
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00000000000i[PLUGIN] init_dev of 'cmos' plugin device by virtual method
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00000000000i[CMOS ] Using local time for initial clock
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00000000000i[CMOS ] Setting initial clock to: Mon May 20 21:48:15 2024 (time0=1716234495)
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00000000000i[PLUGIN] init_dev of 'dma' plugin device by virtual method
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00000000000i[DMA ] channel 4 used by cascade
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00000000000i[PLUGIN] init_dev of 'pic' plugin device by virtual method
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00000000000i[PLUGIN] init_dev of 'pit' plugin device by virtual method
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00000000000i[PIT ] PIT using realtime synchronisation method
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00000000000i[PLUGIN] init_dev of 'vga' plugin device by virtual method
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00000000000i[MEM0 ] Register memory access handlers: 0x0000000a0000 - 0x0000000bffff
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00000000000i[VGA ] interval=200000, mode=realtime
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00000000000i[VGA ] VSYNC using realtime mode
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00000000000i[MEM0 ] Register memory access handlers: 0x0000e0000000 - 0x0000e0ffffff
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00000000000i[BXVGA ] VBE Bochs Display Extension Enabled
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00000000000i[MEM0 ] rom at 0xc0000/38400 ('/usr/share/bochs/VGABIOS-lgpl-latest')
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00000000000i[PLUGIN] init_dev of 'floppy' plugin device by virtual method
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00000000000i[DMA ] channel 2 used by Floppy Drive
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00000000000i[FLOPPY] Using boot sequence cdrom, none, none
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00000000000i[FLOPPY] Floppy boot signature check is enabled
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00000000000i[PLUGIN] init_dev of 'acpi' plugin device by virtual method
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00000000000i[DEV ] ACPI Controller present at device 1, function 3
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00000000000i[PLUGIN] init_dev of 'hpet' plugin device by virtual method
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00000000000i[HPET ] initializing HPET
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00000000000i[MEM0 ] Register memory access handlers: 0x0000fed00000 - 0x0000fed003ff
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00000000000i[PLUGIN] init_dev of 'ioapic' plugin device by virtual method
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00000000000i[IOAPIC] initializing I/O APIC
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00000000000i[MEM0 ] Register memory access handlers: 0x0000fec00000 - 0x0000fec00fff
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00000000000i[IOAPIC] IOAPIC enabled (base address = 0xfec00000)
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00000000000i[PLUGIN] init_dev of 'keyboard' plugin device by virtual method
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00000000000i[PLUGIN] init_dev of 'harddrv' plugin device by virtual method
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00000000000i[HD ] CD on ata0-0: 'os.iso'
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00000000000i[CD1 ] load cdrom with path='os.iso'
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00000000000i[CD1 ] Opening image file as a cd.
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00000000000i[HD ] Media present in CD-ROM drive
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00000000000i[HD ] Capacity is 237 sectors (0.46 MB)
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00000000000i[PLUGIN] init_dev of 'pci_ide' plugin device by virtual method
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00000000000i[DEV ] PIIX3 PCI IDE controller present at device 1, function 1
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00000000000i[PLUGIN] init_dev of 'unmapped' plugin device by virtual method
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00000000000i[PLUGIN] init_dev of 'speaker' plugin device by virtual method
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00000000000i[PCSPK ] Using lowlevel sound support for output
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00000000000i[PLUGIN] init_dev of 'iodebug' plugin device by virtual method
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00000000000i[PLUGIN] init_dev of 'parallel' plugin device by virtual method
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00000000000i[PAR ] parallel port 1 at 0x0378 irq 7
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00000000000i[PLUGIN] init_dev of 'biosdev' plugin device by virtual method
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00000000000i[PLUGIN] init_dev of 'serial' plugin device by virtual method
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00000000000i[SER ] com1 at 0x03f8 irq 4 (mode: file)
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00000000000i[PLUGIN] init_dev of 'extfpuirq' plugin device by virtual method
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00000000000i[PLUGIN] init_dev of 'gameport' plugin device by virtual method
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00000000000i[PLUGIN] init_dev of 'usb_uhci' plugin device by virtual method
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00000000000i[DEV ] USB UHCI present at device 1, function 2
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00000000000i[UHCI ] USB UHCI initialized
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00000000000i[PLUGIN] register state of 'pci' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'pci2isa' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'cmos' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'dma' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'pic' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'pit' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'vga' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'floppy' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'unmapped' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'speaker' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'iodebug' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'parallel' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'biosdev' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'serial' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'extfpuirq' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'gameport' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'usb_uhci' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'acpi' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'hpet' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'ioapic' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'keyboard' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'harddrv' plugin device by virtual method
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00000000000i[PLUGIN] register state of 'pci_ide' plugin device by virtual method
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00000000000i[SYS ] bx_pc_system_c::Reset(HARDWARE) called
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00000000000i[CPU0 ] cpu hardware reset
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00000000000i[APIC0 ] allocate APIC id=0 (MMIO enabled) to 0x0000fee00000
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00000000000i[CPU0 ] CPU[0] is the bootstrap processor
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00000000000i[CPU0 ] CPUID[0x00000000]: 00000005 68747541 444d4163 69746e65
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00000000000i[CPU0 ] CPUID[0x00000001]: 00000633 00010800 00002028 17cbfbff
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00000000000i[CPU0 ] CPUID[0x00000002]: 00000000 00000000 00000000 00000000
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00000000000i[CPU0 ] CPUID[0x00000003]: 00000000 00000000 00000000 00000000
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00000000000i[CPU0 ] CPUID[0x00000004]: 00000000 00000000 00000000 00000000
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00000000000i[CPU0 ] CPUID[0x00000005]: 00000040 00000040 00000003 00000020
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00000000000i[CPU0 ] CPUID[0x80000000]: 80000008 68747541 444d4163 69746e65
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00000000000i[CPU0 ] CPUID[0x80000001]: 00000633 00000000 00000101 ebd3f3ff
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00000000000i[CPU0 ] CPUID[0x80000002]: 20444d41 6c687441 74286e6f 7020296d
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00000000000i[CPU0 ] CPUID[0x80000003]: 65636f72 726f7373 00000000 00000000
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00000000000i[CPU0 ] CPUID[0x80000004]: 00000000 00000000 00000000 00000000
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00000000000i[CPU0 ] CPUID[0x80000005]: 01ff01ff 01ff01ff 40020140 40020140
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00000000000i[CPU0 ] CPUID[0x80000006]: 00000000 42004200 02008140 00000000
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00000000000i[CPU0 ] CPUID[0x80000007]: 00000000 00000000 00000000 00000000
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00000000000i[CPU0 ] CPUID[0x80000008]: 00003028 00000000 00000000 00000000
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00000000000i[CPU0 ] CPU Features supported:
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00000000000i[CPU0 ] x87
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00000000000i[CPU0 ] 486ni
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00000000000i[CPU0 ] pentium_ni
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00000000000i[CPU0 ] p6ni
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00000000000i[CPU0 ] mmx
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00000000000i[CPU0 ] 3dnow!
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00000000000i[CPU0 ] debugext
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00000000000i[CPU0 ] vme
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00000000000i[CPU0 ] pse
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00000000000i[CPU0 ] pae
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00000000000i[CPU0 ] pge
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00000000000i[CPU0 ] pse36
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00000000000i[CPU0 ] mtrr
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00000000000i[CPU0 ] pat
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00000000000i[CPU0 ] sysenter_sysexit
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00000000000i[CPU0 ] clflush
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00000000000i[CPU0 ] sse
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00000000000i[CPU0 ] sse2
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00000000000i[CPU0 ] mwait
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00000000000i[CPU0 ] vmx
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00000000000i[CPU0 ] longmode
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00000000000i[CPU0 ] lm_lahf_sahf
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00000000000i[CPU0 ] nx
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00000000000i[CPU0 ] cmpxhg16b
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00000000000i[CPU0 ] rdtscp
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00000000000i[CPU0 ] ffxsr
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00000000000i[CPU0 ] xapic
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00000000000i[PLUGIN] reset of 'pci' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'pci2isa' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'cmos' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'dma' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'pic' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'pit' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'vga' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'floppy' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'acpi' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'hpet' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'ioapic' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'keyboard' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'harddrv' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'pci_ide' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'unmapped' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'speaker' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'iodebug' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'parallel' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'biosdev' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'serial' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'extfpuirq' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'gameport' plugin device by virtual method
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00000000000i[PLUGIN] reset of 'usb_uhci' plugin device by virtual method
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00000000000i[ ] set SIGINT handler to bx_debug_ctrlc_handler
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00000004662i[BIOS ] $Revision: 14314 $ $Date: 2021-07-14 18:10:19 +0200 (Mi, 14. Jul 2021) $
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00000317288i[KBD ] reset-disable command received
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00000318445i[PIDE ] BAR #4: i/o base address = 0xc000
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00000318672i[UHCI ] BAR #4: i/o base address = 0xc100
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00000324507i[P2ISA ] PCI IRQ routing: PIRQD# set to 0x0b
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00000324523i[P2ISA ] write: ELCR2 = 0x08
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00000324543i[UHCI ] new IRQ line = 11
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00000324608i[P2ISA ] PCI IRQ routing: PIRQA# set to 0x0a
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00000324624i[P2ISA ] write: ELCR2 = 0x0c
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00000324644i[ACPI ] new IRQ line = 10
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00000442944i[VBIOS ] VGABios $Id: vgabios.c 288 2021-05-28 19:05:28Z vruppert $
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00000443015i[BXVGA ] VBE known Display Interface b0c0
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||||||
00000443047i[BXVGA ] VBE known Display Interface b0c5
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||||||
00000445690i[VBIOS ] VBE Bios $Id: vbe.c 292 2021-06-03 12:24:22Z vruppert $
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00004097906i[BIOS ] IDE time out
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||||||
00685117203i[BIOS ] Booting from 07c0:0000
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||||||
00685212587i[BIOS ] int13_harddisk: function 41, unmapped device for ELDL=80
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||||||
00685216258i[BIOS ] int13_harddisk: function 08, unmapped device for ELDL=80
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00685219929i[BIOS ] *** int 15h function AX=00c0, BX=0000 not yet supported!
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00867137284i[ ] Ctrl-C detected in signal handler.
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||||||
00867137285i[ ] dbg: Quit
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00867137285i[CPU0 ] CPU is in protected mode (active)
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||||||
00867137285i[CPU0 ] CS.mode = 32 bit
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00867137285i[CPU0 ] SS.mode = 32 bit
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00867137285i[CPU0 ] EFER = 0x00000000
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00867137285i[CPU0 ] | EAX=0000002a EBX=0002cd80 ECX=000000f0 EDX=00000006
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00867137285i[CPU0 ] | ESP=00067ecc EBP=00067ee0 ESI=0002ced8 EDI=0002ced9
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||||||
00867137285i[CPU0 ] | IOPL=0 id vip vif ac vm rf nt of df if tf sf zf af pf cf
|
|
||||||
00867137285i[CPU0 ] | SEG sltr(index|ti|rpl) base limit G D
|
|
||||||
00867137285i[CPU0 ] | CS:0008( 0001| 0| 0) 00000000 ffffffff 1 1
|
|
||||||
00867137285i[CPU0 ] | DS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
|
|
||||||
00867137285i[CPU0 ] | SS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
|
|
||||||
00867137285i[CPU0 ] | ES:0010( 0002| 0| 0) 00000000 ffffffff 1 1
|
|
||||||
00867137285i[CPU0 ] | FS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
|
|
||||||
00867137285i[CPU0 ] | GS:0010( 0002| 0| 0) 00000000 ffffffff 1 1
|
|
||||||
00867137285i[CPU0 ] | EIP=001006cb (001006cb)
|
|
||||||
00867137285i[CPU0 ] | CR0=0x60000011 CR2=0x00000000
|
|
||||||
00867137285i[CPU0 ] | CR3=0x00000000 CR4=0x00000000
|
|
||||||
00867137285i[CMOS ] Last time is 1716235362 (Mon May 20 22:02:42 2024)
|
|
||||||
00867137285i[SIM ] quit_sim called with exit code 0
|
|
||||||
Binary file not shown.
BIN
kernel.elf
BIN
kernel.elf
Binary file not shown.
5
kmain.c
5
kmain.c
@@ -5,6 +5,9 @@ int kmain(int retvalue)
|
|||||||
{
|
{
|
||||||
clear();
|
clear();
|
||||||
puts("hello\nbrave\nnew\nworld");
|
puts("hello\nbrave\nnew\nworld");
|
||||||
serial_write("hello", 1);
|
|
||||||
|
init_serial();
|
||||||
|
serial_puts("Hello, brave new world. This is a message to let you know that the kernel has started.\n");
|
||||||
|
serial_puts("This is a second message.\n");
|
||||||
return retvalue;
|
return retvalue;
|
||||||
}
|
}
|
||||||
|
|||||||
76
serial.c
76
serial.c
@@ -1,68 +1,44 @@
|
|||||||
#include "io.h"
|
#include "io.h"
|
||||||
#include "serial.h"
|
#include "serial.h"
|
||||||
|
|
||||||
void serial_configure_baud_rate(unsigned short com, unsigned short divisor)
|
int init_serial()
|
||||||
{
|
{
|
||||||
outb(SERIAL_LINE_CMD_PORT(com), SERIAL_LINE_ENABLE_DLAB);
|
outb(PORT+1, 0x00);
|
||||||
outb(SERIAL_DATA_PORT(com), (divisor >> 8) & 0x00FF);
|
outb(PORT+3, 0x80);
|
||||||
outb(SERIAL_DATA_PORT(com), divisor & 0x00FF);
|
outb(PORT+0, 0x03);
|
||||||
|
outb(PORT+1, 0x00);
|
||||||
|
|
||||||
|
outb(PORT+3, 0x03);
|
||||||
|
outb(PORT+2, 0xC7);
|
||||||
|
outb(PORT+4, 0x0B);
|
||||||
|
outb(PORT+4, 0x1E);
|
||||||
|
outb(PORT+0, 0xAE);
|
||||||
|
|
||||||
|
if (inb(PORT+0) != 0xAE) {
|
||||||
|
return 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
void serial_configure_line(unsigned short com)
|
outb(PORT+4, 0x0F);
|
||||||
{
|
return 0;
|
||||||
/*
|
|
||||||
d b p s dl
|
|
||||||
0 0 000 0 11 = 0x03
|
|
||||||
|
|
||||||
Length 8 bits, no parity bit, one stop bit, break control off
|
|
||||||
*/
|
|
||||||
|
|
||||||
outb(SERIAL_LINE_CMD_PORT(com), 0x03);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
void serial_configure_buffer(unsigned short com)
|
int is_transmit_empty()
|
||||||
{
|
{
|
||||||
/*
|
return inb(PORT+5) & 0x20;
|
||||||
lv b r d c c e
|
|
||||||
11 0 0 0 1 1 1 = 0xC7
|
|
||||||
|
|
||||||
Enable FIFO, clear FIFO queues, use 14 bytes as queue size
|
|
||||||
*/
|
|
||||||
|
|
||||||
outb(SERIAL_LINE_CMD_PORT(com), 0xC7);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
void serial_configure_modem(unsigned short com)
|
void write_serial(const char a)
|
||||||
{
|
{
|
||||||
/*
|
while (is_transmit_empty() == 0);
|
||||||
|
outb(PORT, a);
|
||||||
r r a l a a r d
|
|
||||||
0 0 0 0 0 0 1 1 = 0x03
|
|
||||||
|
|
||||||
Ready to transmit, data terminal ready
|
|
||||||
*/
|
|
||||||
|
|
||||||
outb(SERIAL_LINE_CMD_PORT(com), 0x03);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
int serial_is_transmit_fifo_empty(unsigned short com)
|
void serial_puts(const char* str)
|
||||||
{
|
{
|
||||||
return (inb(SERIAL_LINE_STATUS_PORT(com)) & 0x20);
|
unsigned int i = 0;
|
||||||
}
|
write_serial(str[0]); // Transmit first byte 2 times
|
||||||
|
while (*str++)
|
||||||
void serial_write(const char* buf, unsigned short com)
|
|
||||||
{
|
{
|
||||||
serial_configure_baud_rate(com, 2);
|
write_serial(str[i]);
|
||||||
serial_configure_line(com);
|
|
||||||
serial_configure_buffer(com);
|
|
||||||
serial_configure_modem(com);
|
|
||||||
|
|
||||||
for (unsigned int i = 0; i<sizeof(buf); i++)
|
|
||||||
{
|
|
||||||
while (serial_is_transmit_fifo_empty(com))
|
|
||||||
{
|
|
||||||
outb(SERIAL_DATA_PORT(com), buf[i]);
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
return;
|
|
||||||
}
|
|
||||||
|
|||||||
19
serial.h
19
serial.h
@@ -1,20 +1,11 @@
|
|||||||
#ifndef INCLUDE_SERIAL_H
|
#ifndef INCLUDE_SERIAL_H
|
||||||
#define INCLUDE_SERIAL_H
|
#define INCLUDE_SERIAL_H
|
||||||
|
|
||||||
#define SERIAL_COM1_BASE 0x3F8
|
#define PORT 0x3f8 //COM1
|
||||||
#define SERIAL_DATA_PORT(base) (base)
|
|
||||||
#define SERIAL_FIFO_CMD_PORT(base) (base + 2)
|
|
||||||
#define SERIAL_LINE_CMD_PORT(base) (base + 3)
|
|
||||||
#define SERIAL_MODEM_CMD_PORT(base) (base + 4)
|
|
||||||
#define SERIAL_LINE_STATUS_PORT(base) (base + 5)
|
|
||||||
|
|
||||||
#define SERIAL_LINE_ENABLE_DLAB 0x80
|
int init_serial();
|
||||||
|
int is_transmit_empty();
|
||||||
void serial_configure_baud_rate(unsigned short com, unsigned short divisor);
|
void write_serial(const char a);
|
||||||
void serial_configure_line(unsigned short com);
|
void serial_puts(const char* str);
|
||||||
void serial_configure_buffer(unsigned short com);
|
|
||||||
void serial_configure_modem(unsigned short com);
|
|
||||||
int serial_is_transmit_fifo_empty(unsigned short com);
|
|
||||||
void serial_write(const char* buf, unsigned short com);
|
|
||||||
|
|
||||||
#endif
|
#endif
|
||||||
|
|||||||
Reference in New Issue
Block a user