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https://git.missingno.dev/kolibrios-nvme-driver/
synced 2025-01-22 05:08:16 +01:00
first commit
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commit
50addb6fd2
32
.gitignore
vendored
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32
.gitignore
vendored
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/kernel
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/contrib
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/build.txt
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/kolibri.img
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/nvm.img
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/programs
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/skins
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/_tools
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/data
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/.nvim
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/.tup
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/.svn
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/tup.config.template
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/drivers/ethernet
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/drivers/examples
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/drivers/gpio
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/drivers/include
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/drivers/audio
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/drivers/ddk
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/drivers/devman
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/drivers/mouse
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/drivers/old
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/drivers/sdhci
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/drivers/sensors
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/drivers/unfinished
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/drivers/usb
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/drivers/video
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/drivers/disk
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/drivers/*.lua
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/drivers/*.inc
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/drivers/*.asm
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/drivers/**/*.sys
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18
Makefile
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18
Makefile
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QEMU=qemu-system-i386
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ASM=./drivers/nvme/nvme.asm
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NVME_SYS=./drivers/nvme/nvme.sys
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all: MOUNT
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.PHONY: all
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run: MOUNT
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$(QEMU) -m 128 -fda ./kolibri.img -boot a -drive file=nvm.img,if=none,id=nvm -device nvme,serial=deadbeef,drive=nvm
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.PHONY: run
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MOUNT: $(NVME_SYS)
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@mcopy -moi kolibri.img $(NVME_SYS) ::DRIVERS/NVME.SYS
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.PHONY: MOUNT
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$(NVME_SYS): $(ASM)
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@cd ./drivers/nvme && $(MAKE)
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9
drivers/nvme/Makefile
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9
drivers/nvme/Makefile
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FASM = fasm
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KPACK = kpack
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all:
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$(FASM) nvme.asm
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$(KPACK) nvme.sys
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clean:
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rm *.sys
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158
drivers/nvme/nvme.asm
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158
drivers/nvme/nvme.asm
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;driver sceletone
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format PE DLL native
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entry START
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DEBUG equ 1
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API_VERSION equ 0 ;debug
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STRIDE equ 4 ;size of row in devices table
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SRV_GETVERSION equ 0
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section ".flat" code readable writable executable
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include "../proc32.inc"
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include "../struct.inc"
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include "../macros.inc"
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include "../peimport.inc"
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include "../pci.inc"
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include "../../programs/debug.inc"
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proc START c, reason:dword
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cmp [reason], DRV_ENTRY
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jne .exit
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.entry:
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push esi
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if DEBUG
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mov esi, msgInit
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invoke SysMsgBoardStr
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end if
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call detect
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pop esi
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test eax, eax
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jz .exit
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invoke RegService, my_service, service_proc
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ret
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.exit:
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xor eax, eax
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ret
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endp
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proc service_proc stdcall, ioctl:dword
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mov ebx, [ioctl]
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mov eax, [ebx+IOCTL.io_code]
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cmp eax, SRV_GETVERSION
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jne @F
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mov eax, [ebx+IOCTL.output]
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cmp [ebx+IOCTL.out_size], 4
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jne .fail
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mov dword [eax], API_VERSION
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xor eax, eax
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ret
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@@:
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.fail:
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or eax, -1
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ret
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endp
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proc detect
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push ebx
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invoke GetPCIList
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mov edx, eax
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.check_dev:
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mov ecx, [eax+PCIDEV.class]
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and ecx, 0x00ffff00 ; retrieve class/subclass code only
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;if DEBUG
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; mov esi, msgPciClass
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; invoke SysMsgBoardStr
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; debug_print_hex ecx
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; mov esi, newLine
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; invoke SysMsgBoardStr
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;end if
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cmp ecx, 0x00010800 ; Mass Storage Controller - Non-Volatile Memory Controller
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je .found_nvme
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.next_dev:
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mov eax, [eax + PCIDEV.fd]
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cmp eax, edx
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jne .check_dev
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; no more PCI devices to enumerate?
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xor eax, eax
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pop ebx
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ret
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.found_nvme:
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mov esi, msgFound
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invoke SysMsgBoardStr
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.check_cap:
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push eax
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movzx ebx, [eax + PCIDEV.bus]
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mov [bus], ebx
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movzx ebx, [eax + PCIDEV.devfn]
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mov [devfn], ebx
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invoke PciRead16, [bus], [devfn], PCI_header00.status
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test ax, 0x10 ; check capabilities list bit
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jnz .got_cap
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pop eax
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.got_cap:
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if DEBUG
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mov esi, msgHasCap
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invoke SysMsgBoardStr
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end if
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invoke PciRead8, [bus], [devfn], PCI_header00.cap_ptr
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and eax, 11111100b
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mov edi, eax
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@@:
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invoke PciRead32, [bus], [devfn], edi
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mov ecx, eax
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and ecx, 0xff
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if DEBUG
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mov esi, msgCap
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invoke SysMsgBoardStr
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debug_print_hex ecx
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mov esi, newLine
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invoke SysMsgBoardStr
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end if
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mov eax, ecx
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movzx edi, ah
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test edi, edi
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jnz @b
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; return successfully
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pop eax
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xor eax, eax
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inc eax
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pop ebx
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ret
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endp
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; uninitialized data
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bus dd ?
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devfn dd ?
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;all initialized data place here
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align 4
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my_service db "NVME Service",0 ;max 16 chars include zero
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msgInit db "detecting NVME hardware...",13,10,0
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msgFound db "found NVME device",13,10,0
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msgFail db "NVME device not found",13,10,0
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msgHasCap db "NVME device has capabilities",13,10,0
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msgCap db "Capability: ",0
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msgPciClass db "PCI class: ",0
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newLine db 13,10,0
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align 4
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data fixups
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end data
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