WebSVN – Kolibri OS – Diff – /drivers/ethernet/i8255x.asm


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                                 ;;
;; Copyright (C) KolibriOS team 2004-2013. All rights reserved.    ;;
;; Distributed under terms of the GNU General Public License       ;;
;;                                                                 ;;
;; i8255x (Intel eepro 100) driver for KolibriOS                   ;;
;;                                                                 ;;
;;    Written by hidnplayr@kolibrios.org                           ;;
;;                                                                 ;;
;;          GNU GENERAL PUBLIC LICENSE                             ;;
;;             Version 2, June 1991                                ;;
;;                                                                 ;;
;; Some parts of this driver are based on the code of eepro100.c   ;;
;;  from linux.                                                    ;;
;;                                                                 ;;
;; Intel's programming manual for i8255x:                          ;;
;; http://www.intel.com/design/network/manuals/8255x_opensdm.htm   ;;
;;                                                                 ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
; TODO: use separate descriptors in memory instead of placing them in front of packets!
 
 
format MS COFF
 
        API_VERSION             = 0x01000100
        DRIVER_VERSION          = 5
 
        MAX_DEVICES             = 16
 
        DEBUG                   = 1
        __DEBUG__               = 1
        __DEBUG_LEVEL__         = 2             ; 1 = verbose, 2 = errors only
 
include '../proc32.inc'
include '../imports.inc'
include '../fdo.inc'
include '../netdrv.inc'
 
public START
public service_proc
public version
 
virtual at ebx
 
        device:
 
        ETH_DEVICE
 
        .io_addr        dd ?
        .pci_bus        dd ?
        .pci_dev        dd ?
        .irq_line       db ?
 
        .rx_desc        dd ?
 
        .ee_bus_width   db ?
 
                        rb 0x100 - (($ - device) and 0xff)
 
        txfd:
        .status         dw ?
        .command        dw ?
        .link           dd ?
        .tx_desc_addr   dd ?
        .count          dd ?
 
        .tx_buf_addr0   dd ?
        .tx_buf_size0   dd ?
 
                        rb 0x100 - (($ - device) and 0xff)
 
        confcmd:
        .status         dw ?
        .command        dw ?
        .link           dd ?
        .data           rb 64
 
                        rb 0x100 - (($ - device) and 0xff)
 
        lstats:
        tx_good_frames          dd ?
        tx_coll16_errs          dd ?
        tx_late_colls           dd ?
        tx_underruns            dd ?
        tx_lost_carrier         dd ?
        tx_deferred             dd ?
        tx_one_colls            dd ?
        tx_multi_colls          dd ?
        tx_total_colls          dd ?
 
        rx_good_frames          dd ?
        rx_crc_errs             dd ?
        rx_align_errs           dd ?
        rx_resource_errs        dd ?
        rx_overrun_errs         dd ?
        rx_colls_errs           dd ?
        rx_runt_errs            dd ?
 
        last_tx_buffer          dd ?    ;;; fixme
 
        sizeof.device_struct = $ - device
 
end virtual
 
 
virtual at 0
 
        rxfd:
        .status         dw ?
        .command        dw ?
        .link           dd ?
        .rx_buf_addr    dd ?
        .count          dw ?
        .size           dw ?
        .packet:
 
end virtual
 
 
; Serial EEPROM
 
EE_SK           = 1 shl 0      ; serial clock
EE_CS           = 1 shl 1      ; chip select
EE_DI           = 1 shl 2      ; data in
EE_DO           = 1 shl 3      ; data out
EE_MASK         = EE_SK + EE_CS + EE_DI + EE_DO
 
; opcodes, first bit is start bit and must be 1
EE_READ         = 110b
EE_WRITE        = 101b
EE_ERASE        = 111b
 
; The SCB accepts the following controls for the Tx and Rx units:
 
CU_START        = 0x0010
CU_RESUME       = 0x0020
CU_STATSADDR    = 0x0040
CU_SHOWSTATS    = 0x0050        ; Dump statistics counters.
CU_CMD_BASE     = 0x0060        ; Base address to add CU commands.
CU_DUMPSTATS    = 0x0070        ; Dump then reset stats counters.
 
RX_START        = 0x0001
RX_RESUME       = 0x0002
RX_ABORT        = 0x0004
RX_ADDR_LOAD    = 0x0006
RX_RESUMENR     = 0x0007
INT_MASK        = 0x0100
DRVR_INT        = 0x0200        ; Driver generated interrupt
 
CmdIASetup      = 0x0001
CmdConfigure    = 0x0002
CmdTx           = 0x0004
CmdTxFlex       = 0x0008
Cmdsuspend      = 0x4000
 
 
reg_scb_status  = 0
reg_scb_cmd     = 2
reg_scb_ptr     = 4
reg_port        = 8
reg_eeprom      = 14
reg_mdi_ctrl    = 16
 
 
macro delay {
        push    eax
        in      ax, dx
        in      ax, dx
        in      ax, dx
        in      ax, dx
        in      ax, dx
        in      ax, dx
        in      ax, dx
        in      ax, dx
        in      ax, dx
        in      ax, dx
        pop     eax
}
 
section '.flat' code readable align 16
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                        ;;
;; proc START             ;;
;;                        ;;
;; (standard driver proc) ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
proc START stdcall, state:dword
 
        cmp [state], 1
        jne .exit
 
  .entry:
 
        DEBUGF 1,"Loading driver\n"
        stdcall RegService, my_service, service_proc
        ret
 
  .fail:
  .exit:
        xor eax, eax
        ret
 
endp
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                        ;;
;; proc SERVICE_PROC      ;;
;;                        ;;
;; (standard driver proc) ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
align 4
proc service_proc stdcall, ioctl:dword
 
        mov     edx, [ioctl]
        mov     eax, [IOCTL.io_code]
 
;------------------------------------------------------
 
        cmp     eax, 0 ;SRV_GETVERSION
        jne     @F
 
        cmp     [IOCTL.out_size], 4
        jb      .fail
        mov     eax, [IOCTL.output]
        mov     [eax], dword API_VERSION
 
        xor     eax, eax
        ret
 
;------------------------------------------------------
  @@:
        cmp     eax, 1 ;SRV_HOOK
        jne     .fail
 
        cmp     [IOCTL.inp_size], 3               ; Data input must be at least 3 bytes
        jb      .fail
 
        mov     eax, [IOCTL.input]
        cmp     byte [eax], 1                           ; 1 means device number and bus number (pci) are given
        jne     .fail                                   ; other types arent supported for this card yet
 
; check if the device is already listed
 
        mov     esi, device_list
        mov     ecx, [devices]
        test    ecx, ecx
        jz      .firstdevice
 
;        mov     eax, [IOCTL.input]                      ; get the pci bus and device numbers
        mov     ax , [eax+1]                            ;
  .nextdevice:
        mov     ebx, [esi]
        cmp     al, byte[device.pci_bus]
        jne     @f
        cmp     ah, byte[device.pci_dev]
        je      .find_devicenum                         ; Device is already loaded, let's find it's device number
       @@:
        add     esi, 4
        loop    .nextdevice
 
 
; This device doesnt have its own eth_device structure yet, lets create one
  .firstdevice:
        cmp     [devices], MAX_DEVICES                  ; First check if the driver can handle one more card
        jae     .fail
 
        allocate_and_clear ebx, sizeof.device_struct, .fail      ; Allocate the buffer for device structure
 
; Fill in the direct call addresses into the struct
 
        mov     [device.reset], reset
        mov     [device.transmit], transmit
        mov     [device.unload], unload
        mov     [device.name], my_service
 
; save the pci bus and device numbers
 
        mov     eax, [IOCTL.input]
        movzx   ecx, byte[eax+1]
        mov     [device.pci_bus], ecx
        movzx   ecx, byte[eax+2]
        mov     [device.pci_dev], ecx
 
; Now, it's time to find the base io addres of the PCI device
 
        PCI_find_io
 
; We've found the io address, find IRQ now
 
        PCI_find_irq
 
        DEBUGF  1,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\
        [device.pci_dev]:1,[device.pci_bus]:1,[device.irq_line]:1,[device.io_addr]:4
 
; Ok, the eth_device structure is ready, let's probe the device
 
        pushf
        cli                     ; disable ints until initialisation is done
 
        call    probe                                                   ; this function will output in eax
        test    eax, eax
        jnz     .err                                                    ; If an error occured, exit
 
        mov     eax, [devices]                                          ; Add the device structure to our device list
        mov     [device_list+4*eax], ebx                                ; (IRQ handler uses this list to find device)
        inc     [devices]                                               ;
 
        popf
 
        mov     [device.type], NET_TYPE_ETH
        call    NetRegDev
 
        cmp     eax, -1
        je      .err
 
        ret
 
; If the device was already loaded, find the device number and return it in eax
 
  .find_devicenum:
        DEBUGF  2,"Trying to find device number of already registered device\n"
        call    NetPtrToNum                                             ; This kernel procedure converts a pointer to device struct in ebx
                                                                        ; into a device number in edi
        mov     eax, edi                                                ; Application wants it in eax instead
        DEBUGF  2,"Kernel says: %u\n", eax
        ret
 
; If an error occured, remove all allocated data and exit (returning -1 in eax)
 
  .err:
        stdcall KernelFree, ebx
 
  .fail:
        or      eax, -1
        ret
 
;------------------------------------------------------
endp
 
 
 
 
 
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
;;                                                                        ;;
;;        Actual Hardware dependent code starts here                      ;;
;;                                                                        ;;
;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
 
 
unload:
        ; TODO: (in this particular order)
        ;
        ; - Stop the device
        ; - Detach int handler
        ; - Remove device from local list (device_list)
        ; - call unregister function in kernel
        ; - Remove all allocated structures and buffers the card used
 
        or      eax,-1
 
ret
 
 
;-------------
;
; Probe
;
;-------------
 
align 4
probe:
 
        DEBUGF  1,"Probing\n"
 
        PCI_make_bus_master
 
;---------------------------
; First, identify the device
 
        stdcall PciRead32, [device.pci_bus], [device.pci_dev], PCI_VENDOR_ID                                ; get device/vendor id
 
        DEBUGF  1,"Vendor_id=0x%x\n", ax
 
        cmp     ax, 0x8086
        jne     .notfound
        shr     eax, 16
 
        DEBUGF  1,"Device_id=0x%x\n", ax
 
        mov     ecx, DEVICE_IDs
        mov     edi, device_id_list
        repne   scasw
        jne     .notfound
        jmp     .found
 
  .notfound:
        DEBUGF  2,"Unsupported device!\n"
        or      eax, -1
        ret
 
  .found:
 
        call    ee_get_width
        call    MAC_read_eeprom
 
        ;;; TODO: detect phy
 
 
 
;----------
;
;  Reset
;
;----------
 
align 4
reset:
 
        movzx   eax, [device.irq_line]
        DEBUGF  1,"Attaching int handler to irq %x\n", eax:1
        stdcall AttachIntHandler, eax, int_handler, dword 0
        test    eax, eax
        jnz     @f
        DEBUGF  2,"Could not attach int handler!\n"
;        or      eax, -1
;        ret
  @@:
 
        DEBUGF  1,"Resetting\n"
 
;---------------
; reset the card
 
        set_io  0
        set_io  reg_port
        xor     eax, eax        ; Software Reset
        out     dx, eax
 
        mov     esi, 10
        call    Sleep           ; Give the card time to warm up.
 
;---------------------------------
; Tell device where to store stats
 
        lea     eax, [lstats]
        GetRealAddr
        set_io  0
        set_io  reg_scb_ptr
        out     dx, eax
 
        mov     ax, INT_MASK + CU_STATSADDR
        set_io  reg_scb_cmd
        out     dx, ax
        call    cmd_wait
 
;-----------------
; setup RX
 
        set_io  reg_scb_ptr
        xor     eax, eax
        out     dx, eax
 
        set_io  reg_scb_cmd
        mov     ax, INT_MASK + RX_ADDR_LOAD
        out     dx, ax
        call    cmd_wait
 
;-----------------------------
; Create RX and TX descriptors
 
        call    create_ring
 
; RX start
 
        set_io  0
        set_io  reg_scb_ptr
        mov     eax, [device.rx_desc]
        GetRealAddr
        out     dx, eax
 
        mov     ax, INT_MASK + RX_START
        set_io  reg_scb_cmd
        out     dx, ax
        call    cmd_wait
 
; Set-up TX
 
        set_io  reg_scb_ptr
        xor     eax, eax
        out     dx, eax
 
        set_io  reg_scb_cmd
        mov     ax, INT_MASK + CU_CMD_BASE
        out     dx, ax
        call    cmd_wait
 
;  --------------------
 
        mov     [confcmd.command], CmdConfigure + Cmdsuspend
        mov     [confcmd.status], 0
        lea     eax, [txfd]
        GetRealAddr
        mov     [confcmd.link], eax
 
        mov     esi, confcmd_data
        lea     edi, [confcmd.data]
        mov     ecx, 22
        rep     movsb
 
        mov     byte[confcmd.data + 1], 0x88  ; fifo of 8 each
        mov     byte[confcmd.data + 4], 0
        mov     byte[confcmd.data + 5], 0x80
        mov     byte[confcmd.data + 15], 0x48
        mov     byte[confcmd.data + 19], 0x80
        mov     byte[confcmd.data + 21], 0x05
 
        mov     [txfd.command], CmdIASetup
        mov     [txfd.status], 0
        lea     eax, [confcmd]
        GetRealAddr
        mov     [txfd.link], eax
 
;;; copy in our MAC
 
        lea     edi, [txfd.tx_desc_addr]
        lea     esi, [device.mac]
        movsd
        movsw
 
        set_io  reg_scb_ptr
        lea     eax, [txfd]
        GetRealAddr
        out     dx, eax
 
; Start CU & enable ints
 
        set_io  reg_scb_cmd
        mov     ax, CU_START
        out     dx, ax
        call    cmd_wait
 
;-----------------------
; build txfd structure (again!)
 
        lea     eax, [txfd]
        GetRealAddr
        mov     [txfd.link], eax
        mov     [txfd.count], 0x02208000
        lea     eax, [txfd.tx_buf_addr0]
        GetRealAddr
        mov     [txfd.tx_desc_addr], eax
 
; Indicate that we have successfully reset the card
 
        DEBUGF  1,"Reset complete\n"
 
        mov     [device.mtu], 1514
 
; Set link state to unknown
        mov     [device.state], ETH_LINK_UNKOWN
 
        xor     eax, eax        ; indicate that we have successfully reset the card
        ret
 
 
align 4
create_ring:
 
        DEBUGF  1,"Creating ring\n"
 
;---------------------
; build rxfd structure
 
        stdcall KernelAlloc, 2000
        mov     [device.rx_desc], eax
        mov     esi, eax
        GetRealAddr
        mov     [esi + rxfd.status], 0x0000
        mov     [esi + rxfd.command], 0x0000
        mov     [esi + rxfd.link], eax
        mov     [esi + rxfd.count], 0
        mov     [esi + rxfd.size], 1528
 
;-----------------------
; build txfd structure
 
        lea     eax, [txfd]
        GetRealAddr
        mov     [txfd.link], eax
        mov     [txfd.count], 0x02208000
        lea     eax, [txfd.tx_buf_addr0]
        GetRealAddr
        mov     [txfd.tx_desc_addr], eax
 
        ret
 
 
 
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                         ;;
;; Transmit                                ;;
;;                                         ;;
;; In: buffer pointer in [esp+4]           ;;
;;     size of buffer in [esp+8]           ;;
;;     pointer to device structure in ebx  ;;
;;                                         ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
align 4
transmit:
 
        DEBUGF  1,"Transmitting packet, buffer:%x, size:%u\n", [esp+4], [esp+8]
        mov     eax, [esp+4]
        DEBUGF  1,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\
        [eax+00]:2,[eax+01]:2,[eax+02]:2,[eax+03]:2,[eax+04]:2,[eax+05]:2,\
        [eax+06]:2,[eax+07]:2,[eax+08]:2,[eax+09]:2,[eax+10]:2,[eax+11]:2,\
        [eax+13]:2,[eax+12]:2
 
        cmp     dword [esp+8], 1514
        ja      .error                          ; packet is too long
        cmp     dword [esp+8], 60
        jb      .error                          ; packet is too short
 
        ;;; TODO: check if current descriptor is in use
        ; fill in buffer address and size
        mov     eax, [esp+4]
        mov     [last_tx_buffer], eax   ;;; FIXME
        GetRealAddr
        mov     [txfd.tx_buf_addr0], eax
        mov     eax, [esp+8]
        mov     [txfd.tx_buf_size0], eax
 
        mov     [txfd.status], 0
        mov     [txfd.command], Cmdsuspend + CmdTx + CmdTxFlex + 1 shl 15 ;;; EL bit
 
 ;       mov     [txfd.count], 0x02208000   ;;;;;;;;;;;
 
        ; Inform device of the new/updated transmit descriptor
        lea     eax, [txfd]
        GetRealAddr
        set_io  0
        set_io  reg_scb_ptr
        out     dx, eax
 
        ; Start the transmit
        mov     ax, CU_START
        set_io  reg_scb_cmd
        out     dx, ax
        call    cmd_wait
 
;        set_io  0               ;; why?
;        in      ax, dx          ;;
;
;  @@:
;        cmp     [txfd.status], 0  ; wait for completion? dont seems a good idea to me..
;        je      @r
;
;        set_io  0               ;; why?
;        in      ax, dx          ;;
 
; Update stats
        inc     [device.packets_tx]
        mov     eax, [esp + 8]
        add     dword [device.bytes_tx], eax
        adc     dword [device.bytes_tx + 4], 0
 
        DEBUGF  1,"Transmit OK\n"
 
        xor     eax, eax
        ret     8
 
  .error:
        stdcall KernelFree, [esp+4]
        or      eax, -1
        ret     8
 
;;;;;;;;;;;;;;;;;;;;;;;
;;                   ;;
;; Interrupt handler ;;
;;                   ;;
;;;;;;;;;;;;;;;;;;;;;;;
 
align 4
int_handler:
 
        push    ebx esi edi
 
        DEBUGF  1,"INT\n"
 
; find pointer of device wich made IRQ occur
 
        mov     ecx, [devices]
        test    ecx, ecx
        jz      .nothing
        mov     esi, device_list
  .nextdevice:
        mov     ebx, [esi]
 
;        set_io  0              ; reg_scb_status = 0
        set_io  reg_scb_status
        in      ax, dx
        out     dx, ax                              ; send it back to ACK
        test    ax, ax
        jnz     .got_it
  .continue:
        add     esi, 4
        dec     ecx
        jnz     .nextdevice
  .nothing:
        pop     edi esi ebx
        xor     eax, eax
 
        ret                                         ; If no device was found, abort (The irq was probably for a device, not registered to this driver)
 
  .got_it:
 
        DEBUGF  1,"Device: %x Status: %x\n", ebx, ax
 
        test    ax, 1 shl 14    ; did we receive a frame?
        jz      .no_rx
 
        push    ax
 
        DEBUGF  1,"Receiving\n"
 
        push    ebx
  .rx_loop:
        pop     ebx
 
        mov     esi, [device.rx_desc]
        cmp     [esi + rxfd.status], 0        ; we could also check bits C and OK (bit 15 and 13)
        je      .nodata
 
        DEBUGF  1,"rxfd status=0x%x\n", [esi + rxfd.status]:4
 
        movzx   ecx, [esi + rxfd.count]
        and     ecx, 0x3fff
 
        push    ebx
        push    .rx_loop
        push    ecx
        add     esi, rxfd.packet
        push    esi
 
; Update stats
        add     dword [device.bytes_rx], ecx
        adc     dword [device.bytes_rx + 4], 0
        inc     dword [device.packets_rx]
 
; allocate new descriptor
 
        stdcall KernelAlloc, 2000
        mov     [device.rx_desc], eax
        mov     esi, eax
        GetRealAddr
        mov     [esi + rxfd.status], 0x0000
        mov     [esi + rxfd.command], 0xc000    ; End of list + Suspend
        mov     [esi + rxfd.link], eax
        mov     [esi + rxfd.count], 0
        mov     [esi + rxfd.size], 1528
 
; restart RX
 
        set_io  0
        set_io  reg_scb_ptr
;        lea     eax, [device.rx_desc]
;        GetRealAddr
        out     dx, eax
 
        set_io  reg_scb_cmd
        mov     ax, RX_START
        out     dx, ax
        call    cmd_wait
 
; And give packet to kernel
 
        jmp     Eth_input
 
  .nodata:
        DEBUGF  1, "no more data\n"
        pop     ax
 
  .no_rx:
 
; Cleanup after TX
        cmp     [txfd.status], 0
        je      .done
        cmp     [last_tx_buffer], 0
        je      .done
        push    ax
        DEBUGF  1, "Removing packet 0x%x from RAM!\n", [last_tx_buffer]
        stdcall KernelFree, [last_tx_buffer]
        mov     [last_tx_buffer], 0
        pop     ax
 
  .done:
        and     ax, 00111100b
        cmp     ax, 00001000b
        jne     .fail
 
        DEBUGF  1, "out of resources!\n"
; Restart the RX
 
; allocate new descriptor
 
        stdcall KernelAlloc, 2000
        mov     [device.rx_desc], eax
        mov     esi, eax
        GetRealAddr
        mov     [esi + rxfd.status], 0x0000
        mov     [esi + rxfd.command], 0xc000    ; End of list + Suspend
        mov     [esi + rxfd.link], eax
        mov     [esi + rxfd.count], 0
        mov     [esi + rxfd.size], 1528
 
; restart RX
 
        set_io  0
        set_io  reg_scb_ptr
;        lea     eax, [device.rx_desc]
;        GetRealAddr
        out     dx, eax
 
        set_io  reg_scb_cmd
        mov     ax, RX_START
        out     dx, ax
        call    cmd_wait
 
  .fail:
        pop     edi esi ebx
        xor     eax, eax
        inc     eax
 
        ret
 
 
 
 
align 4
cmd_wait:
 
        in      al, dx
        test    al, al
        jnz     cmd_wait
 
        ret
 
 
 
 
 
 
align 4
ee_read:        ; esi = address to read
 
        DEBUGF  1,"Eeprom read from 0x%x\n", esi
 
        set_io  0
        set_io  reg_eeprom
 
;-----------------------------------------------------
; Prepend start bit + read opcode to the address field
; and shift it to the very left bits of esi
 
        mov     cl, 29
        sub     cl, [device.ee_bus_width]
        shl     esi, cl
        or      esi, EE_READ shl 29
 
        movzx   ecx, [device.ee_bus_width]
        add     ecx, 3
 
        mov     al, EE_CS
        out     dx, al
        delay
 
;-----------------------
; Write this to the chip
 
  .loop:
        mov     al, EE_CS + EE_SK
        shl     esi, 1
        jnc     @f
        or      al, EE_DI
       @@:
        out     dx, al
        delay
 
        and     al, not EE_SK
        out     dx, al
        delay
 
        loop    .loop
 
;------------------------------
; Now read the data from eeprom
 
        xor     esi, esi
        mov     ecx, 16
 
  .loop2:
        shl     esi, 1
        mov     al, EE_CS + EE_SK
        out     dx, al
        delay
 
        in      al, dx
        test    al, EE_DO
        jz      @f
        inc     esi
       @@:
 
        mov     al, EE_CS
        out     dx, al
        delay
 
        loop    .loop2
 
;-----------------------
; de-activate the eeprom
 
        xor     ax, ax
        out     dx, ax
 
 
        DEBUGF  1,"0x%x\n", esi:4
        ret
 
 
 
align 4
ee_write:       ; esi = address to write to, di = data
 
        DEBUGF  1,"Eeprom write 0x%x to 0x%x\n", di, esi
 
        set_io  0
        set_io  reg_eeprom
 
;-----------------------------------------------------
; Prepend start bit + write opcode to the address field
; and shift it to the very left bits of esi
 
        mov     cl, 29
        sub     cl, [device.ee_bus_width]
        shl     esi, cl
        or      esi, EE_WRITE shl 29
 
        movzx   ecx, [device.ee_bus_width]
        add     ecx, 3
 
        mov     al, EE_CS       ; enable chip
        out     dx, al
 
;-----------------------
; Write this to the chip
 
  .loop:
        mov     al, EE_CS + EE_SK
        shl     esi, 1
        jnc     @f
        or      al, EE_DI
       @@:
        out     dx, al
        delay
 
        and     al, not EE_SK
        out     dx, al
        delay
 
        loop    .loop
 
;-----------------------------
; Now write the data to eeprom
 
        mov     ecx, 16
 
  .loop2:
        mov     al, EE_CS + EE_SK
        shl     di, 1
        jnc     @f
        or      al, EE_DI
       @@:
        out     dx, al
        delay
 
        and     al, not EE_SK
        out     dx, al
        delay
 
        loop    .loop2
 
;-----------------------
; de-activate the eeprom
 
        xor     al, al
        out     dx, al
 
 
        ret
 
 
 
align 4
ee_get_width:
 
 
 
        set_io  0
        set_io  reg_eeprom
 
        mov     al, EE_CS      ; activate eeprom
        out     dx, al
        delay
 
        mov     si, EE_READ shl 13
        xor     ecx, ecx
  .loop:
        mov     al, EE_CS + EE_SK
        shl     si, 1
        jnc     @f
        or      al, EE_DI
       @@:
        out     dx, al
        delay
 
        and     al, not EE_SK
        out     dx, al
        delay
 
        inc     ecx
 
        cmp     ecx, 15
        jae     .give_up
 
        in      al, dx
        test    al, EE_DO
        jnz     .loop
 
 
        xor     al, al
        out     dx, al          ; de-activate eeprom
 
        sub     cl, 3           ; dont count the opcode bits
 
        mov     [device.ee_bus_width], cl
        DEBUGF  1, "Eeprom width=%u bit\n", ecx
 
        ret
 
  .give_up:
        DEBUGF  2, "Eeprom not found!\n"
 
        xor     al, al
        out     dx, al          ; de-activate eeprom
 
        ret
 
 
 
; cx = phy addr
; dx = phy reg addr
 
; ax = data
 
align 4
mdio_read:
 
        DEBUGF  1,"MDIO read\n"
 
        shl     ecx, 21                 ; PHY addr
        shl     edx, 16                 ; PHY reg addr
 
        mov     eax, ecx
        or      eax, edx
        or      eax, 10b shl 26         ; read opcode
 
        set_io  0
        set_io  reg_mdi_ctrl
        out     dx, eax
 
  .wait:
        delay
        in      eax, dx
        test    eax, 1 shl 28           ; ready bit
        jz      .wait
 
        ret
 
; ax = data
; cx = phy addr
; dx = phy reg addr
 
; ax = data
 
align 4
mdio_write:
 
        DEBUGF  1,"MDIO write\n"
 
        and     eax, 0xffff
 
        shl     ecx, 21                 ; PHY addr
        shl     edx, 16                 ; PHY reg addr
 
        or      eax, ecx
        or      eax, edx
        or      eax, 01b shl 26         ; write opcode
 
        set_io  0
        set_io  reg_mdi_ctrl
        out     dx, eax
 
  .wait:
        delay
        in      eax, dx
        test    eax, 1 shl 28           ; ready bit
        jz      .wait
 
        ret
 
read_mac:
 
        ret
 
 
 
align 4
MAC_read_eeprom:
 
        mov     esi, 0
        call    ee_read
        mov     word[device.mac], si
 
        mov     esi, 1
        call    ee_read
        mov     word[device.mac+2], si
 
        mov     esi, 2
        call    ee_read
        mov     word[device.mac+4], si
 
 
        ret
 
 
align 4
MAC_write:
 
;;;;
 
        ret
 
 
 
 
; End of code
 
align 4                                         ; Place all initialised data here
 
devices         dd 0                              ; number of currently running devices
version         dd (DRIVER_VERSION shl 16) or (API_VERSION and 0xFFFF)
my_service      db 'i8255x', 0                    ; max 16 chars include zero
devicename      db 'Intel Etherexpress pro/100', 0
 
confcmd_data    db 22, 0x08, 0, 0, 0, 0x80, 0x32, 0x03, 1
                db 0, 0x2e, 0, 0x60, 0, 0xf2, 0x48, 0, 0x40, 0xf2
                db 0x80, 0x3f, 0x05                                     ; 22 bytes total
 
 
device_id_list:
 
        dw 0x1029
        dw 0x1030
        dw 0x1031
        dw 0x1032
        dw 0x1033
        dw 0x1034
        dw 0x1038
        dw 0x1039
        dw 0x103A
        dw 0x103B
        dw 0x103C
        dw 0x103D
        dw 0x103E
        dw 0x1050
        dw 0x1051
        dw 0x1052
        dw 0x1053
        dw 0x1054
        dw 0x1055
        dw 0x1056
        dw 0x1057
        dw 0x1059
        dw 0x1064
        dw 0x1065
        dw 0x1066
        dw 0x1067
        dw 0x1068
        dw 0x1069
        dw 0x106A
        dw 0x106B
        dw 0x1091
        dw 0x1092
        dw 0x1093
        dw 0x1094
        dw 0x1095
        dw 0x10fe
        dw 0x1209
        dw 0x1229
        dw 0x2449
        dw 0x2459
        dw 0x245D
        dw 0x27DC
 
DEVICE_IDs = ($ - device_id_list) / 2
 
mac_82557_D100_A  = 0
mac_82557_D100_B  = 1
mac_82557_D100_C  = 2
mac_82558_D101_A4 = 4
mac_82558_D101_B0 = 5
mac_82559_D101M   = 8
mac_82559_D101S   = 9
mac_82550_D102    = 12
mac_82550_D102_C  = 13
mac_82551_E       = 14
mac_82551_F       = 15
mac_82551_10      = 16
mac_unknown       = 0xFF
 
phy_100a     = 0x000003E0
phy_100c     = 0x035002A8
phy_82555_tx = 0x015002A8
phy_nsc_tx   = 0x5C002000
phy_82562_et = 0x033002A8
phy_82562_em = 0x032002A8
phy_82562_ek = 0x031002A8
phy_82562_eh = 0x017002A8
phy_82552_v  = 0xd061004d
phy_unknown  = 0xFFFFFFFF
 
 
include_debug_strings                           ; All data wich FDO uses will be included here
 
section '.data' data readable writable align 16 ; place all uninitialized data place here
 
device_list   rd MAX_DEVICES                    ; This list contains all pointers to device structures the driver is handling

Rev 3545	Rev 3845
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;; ;;	2	;; ;;
3	;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;;	3	;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;;
4	;; Distributed under terms of the GNU General Public License ;;	4	;; Distributed under terms of the GNU General Public License ;;
5	;; ;;	5	;; ;;
6	;; i8255x (Intel eepro 100) driver for KolibriOS ;;	6	;; i8255x (Intel eepro 100) driver for KolibriOS ;;
7	;; ;;	7	;; ;;
8	;; Written by hidnplayr@kolibrios.org ;;	8	;; Written by hidnplayr@kolibrios.org ;;
9	;; ;;	9	;; ;;
10	;; GNU GENERAL PUBLIC LICENSE ;;	10	;; GNU GENERAL PUBLIC LICENSE ;;
11	;; Version 2, June 1991 ;;	11	;; Version 2, June 1991 ;;
12	;; ;;	12	;; ;;
13	;; Some parts of this driver are based on the code of eepro100.c ;;	13	;; Some parts of this driver are based on the code of eepro100.c ;;
14	;; from linux. ;;	14	;; from linux. ;;
15	;; ;;	15	;; ;;
16	;; Intel's programming manual for i8255x: ;;	16	;; Intel's programming manual for i8255x: ;;
17	;; http://www.intel.com/design/network/manuals/8255x_opensdm.htm ;;	17	;; http://www.intel.com/design/network/manuals/8255x_opensdm.htm ;;
18	;; ;;	18	;; ;;
19	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	19	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
20		20
21	; TODO: use separate descriptors in memory instead of placing them in front of packets!	21	; TODO: use separate descriptors in memory instead of placing them in front of packets!
22		22
23		23
24	format MS COFF	24	format MS COFF
25		25
26	API_VERSION = 0x01000100	26	API_VERSION = 0x01000100
27	DRIVER_VERSION = 5	27	DRIVER_VERSION = 5
28		28
29	MAX_DEVICES = 16	29	MAX_DEVICES = 16
30		30
31	DEBUG = 1	31	DEBUG = 1
32	__DEBUG__ = 1	32	__DEBUG__ = 1
33	__DEBUG_LEVEL__ = 2	33	__DEBUG_LEVEL__ = 2 ; 1 = verbose, 2 = errors only
34		34
35	include '../proc32.inc'	35	include '../proc32.inc'
36	include '../imports.inc'	36	include '../imports.inc'
37	include '../fdo.inc'	37	include '../fdo.inc'
38	include '../netdrv.inc'	38	include '../netdrv.inc'
39		39
40	public START	40	public START
41	public service_proc	41	public service_proc
42	public version	42	public version
43		43
44	virtual at ebx	44	virtual at ebx
45		45
46	device:	46	device:
47		47
48	ETH_DEVICE	48	ETH_DEVICE
49		49
50	.io_addr dd ?	50	.io_addr dd ?
51	.pci_bus dd ?	51	.pci_bus dd ?
52	.pci_dev dd ?	52	.pci_dev dd ?
53	.irq_line db ?	53	.irq_line db ?
54		54
55	.rx_desc dd ?	55	.rx_desc dd ?
56		56
57	.ee_bus_width db ?	57	.ee_bus_width db ?
58		58
59	rb 0x100 - (($ - device) and 0xff)	59	rb 0x100 - (($ - device) and 0xff)
60		60
61	txfd:	61	txfd:
62	.status dw ?	62	.status dw ?
63	.command dw ?	63	.command dw ?
64	.link dd ?	64	.link dd ?
65	.tx_desc_addr dd ?	65	.tx_desc_addr dd ?
66	.count dd ?	66	.count dd ?
67		67
68	.tx_buf_addr0 dd ?	68	.tx_buf_addr0 dd ?
69	.tx_buf_size0 dd ?	69	.tx_buf_size0 dd ?
70		70
71	rb 0x100 - (($ - device) and 0xff)	71	rb 0x100 - (($ - device) and 0xff)
72		72
73	confcmd:	73	confcmd:
74	.status dw ?	74	.status dw ?
75	.command dw ?	75	.command dw ?
76	.link dd ?	76	.link dd ?
77	.data rb 64	77	.data rb 64
78		78
79	rb 0x100 - (($ - device) and 0xff)	79	rb 0x100 - (($ - device) and 0xff)
80		80
81	lstats:	81	lstats:
82	tx_good_frames dd ?	82	tx_good_frames dd ?
83	tx_coll16_errs dd ?	83	tx_coll16_errs dd ?
84	tx_late_colls dd ?	84	tx_late_colls dd ?
85	tx_underruns dd ?	85	tx_underruns dd ?
86	tx_lost_carrier dd ?	86	tx_lost_carrier dd ?
87	tx_deferred dd ?	87	tx_deferred dd ?
88	tx_one_colls dd ?	88	tx_one_colls dd ?
89	tx_multi_colls dd ?	89	tx_multi_colls dd ?
90	tx_total_colls dd ?	90	tx_total_colls dd ?
91		91
92	rx_good_frames dd ?	92	rx_good_frames dd ?
93	rx_crc_errs dd ?	93	rx_crc_errs dd ?
94	rx_align_errs dd ?	94	rx_align_errs dd ?
95	rx_resource_errs dd ?	95	rx_resource_errs dd ?
96	rx_overrun_errs dd ?	96	rx_overrun_errs dd ?
97	rx_colls_errs dd ?	97	rx_colls_errs dd ?
98	rx_runt_errs dd ?	98	rx_runt_errs dd ?
99		99
100	last_tx_buffer dd ? ;;; fixme	100	last_tx_buffer dd ? ;;; fixme
101		101
102	sizeof.device_struct = $ - device	102	sizeof.device_struct = $ - device
103		103
104	end virtual	104	end virtual
105		105
106		106
107	virtual at 0	107	virtual at 0
108		108
109	rxfd:	109	rxfd:
110	.status dw ?	110	.status dw ?
111	.command dw ?	111	.command dw ?
112	.link dd ?	112	.link dd ?
113	.rx_buf_addr dd ?	113	.rx_buf_addr dd ?
114	.count dw ?	114	.count dw ?
115	.size dw ?	115	.size dw ?
116	.packet:	116	.packet:
117		117
118	end virtual	118	end virtual
119		119
120		120
121	; Serial EEPROM	121	; Serial EEPROM
122		122
123	EE_SK = 1 shl 0 ; serial clock	123	EE_SK = 1 shl 0 ; serial clock
124	EE_CS = 1 shl 1 ; chip select	124	EE_CS = 1 shl 1 ; chip select
125	EE_DI = 1 shl 2 ; data in	125	EE_DI = 1 shl 2 ; data in
126	EE_DO = 1 shl 3 ; data out	126	EE_DO = 1 shl 3 ; data out
127	EE_MASK = EE_SK + EE_CS + EE_DI + EE_DO	127	EE_MASK = EE_SK + EE_CS + EE_DI + EE_DO
128		128
129	; opcodes, first bit is start bit and must be 1	129	; opcodes, first bit is start bit and must be 1
130	EE_READ = 110b	130	EE_READ = 110b
131	EE_WRITE = 101b	131	EE_WRITE = 101b
132	EE_ERASE = 111b	132	EE_ERASE = 111b
133		133
134	; The SCB accepts the following controls for the Tx and Rx units:	134	; The SCB accepts the following controls for the Tx and Rx units:
135		135
136	CU_START = 0x0010	136	CU_START = 0x0010
137	CU_RESUME = 0x0020	137	CU_RESUME = 0x0020
138	CU_STATSADDR = 0x0040	138	CU_STATSADDR = 0x0040
139	CU_SHOWSTATS = 0x0050 ; Dump statistics counters.	139	CU_SHOWSTATS = 0x0050 ; Dump statistics counters.
140	CU_CMD_BASE = 0x0060 ; Base address to add CU commands.	140	CU_CMD_BASE = 0x0060 ; Base address to add CU commands.
141	CU_DUMPSTATS = 0x0070 ; Dump then reset stats counters.	141	CU_DUMPSTATS = 0x0070 ; Dump then reset stats counters.
142		142
143	RX_START = 0x0001	143	RX_START = 0x0001
144	RX_RESUME = 0x0002	144	RX_RESUME = 0x0002
145	RX_ABORT = 0x0004	145	RX_ABORT = 0x0004
146	RX_ADDR_LOAD = 0x0006	146	RX_ADDR_LOAD = 0x0006
147	RX_RESUMENR = 0x0007	147	RX_RESUMENR = 0x0007
148	INT_MASK = 0x0100	148	INT_MASK = 0x0100
149	DRVR_INT = 0x0200 ; Driver generated interrupt	149	DRVR_INT = 0x0200 ; Driver generated interrupt
150		150
151	CmdIASetup = 0x0001	151	CmdIASetup = 0x0001
152	CmdConfigure = 0x0002	152	CmdConfigure = 0x0002
153	CmdTx = 0x0004	153	CmdTx = 0x0004
154	CmdTxFlex = 0x0008	154	CmdTxFlex = 0x0008
155	Cmdsuspend = 0x4000	155	Cmdsuspend = 0x4000
156		156
157		157
158	reg_scb_status = 0	158	reg_scb_status = 0
159	reg_scb_cmd = 2	159	reg_scb_cmd = 2
160	reg_scb_ptr = 4	160	reg_scb_ptr = 4
161	reg_port = 8	161	reg_port = 8
162	reg_eeprom = 14	162	reg_eeprom = 14
163	reg_mdi_ctrl = 16	163	reg_mdi_ctrl = 16
164		164
165		165
166	macro delay {	166	macro delay {
167	push eax	167	push eax
168	in ax, dx	168	in ax, dx
169	in ax, dx	169	in ax, dx
170	in ax, dx	170	in ax, dx
171	in ax, dx	171	in ax, dx
172	in ax, dx	172	in ax, dx
173	in ax, dx	173	in ax, dx
174	in ax, dx	174	in ax, dx
175	in ax, dx	175	in ax, dx
176	in ax, dx	176	in ax, dx
177	in ax, dx	177	in ax, dx
178	pop eax	178	pop eax
179	}	179	}
180		180
181	section '.flat' code readable align 16	181	section '.flat' code readable align 16
182		182
183	;;;;;;;;;;;;;;;;;;;;;;;;;;;;	183	;;;;;;;;;;;;;;;;;;;;;;;;;;;;
184	;; ;;	184	;; ;;
185	;; proc START ;;	185	;; proc START ;;
186	;; ;;	186	;; ;;
187	;; (standard driver proc) ;;	187	;; (standard driver proc) ;;
188	;;;;;;;;;;;;;;;;;;;;;;;;;;;;	188	;;;;;;;;;;;;;;;;;;;;;;;;;;;;
189		189
190	proc START stdcall, state:dword	190	proc START stdcall, state:dword
191		191
192	cmp [state], 1	192	cmp [state], 1
193	jne .exit	193	jne .exit
194		194
195	.entry:	195	.entry:
196		196
197	DEBUGF 1,"Loading %s driver\n", my_service	197	DEBUGF 1,"Loading driver\n"
198	stdcall RegService, my_service, service_proc	198	stdcall RegService, my_service, service_proc
199	ret	199	ret
200		200
201	.fail:	201	.fail:
202	.exit:	202	.exit:
203	xor eax, eax	203	xor eax, eax
204	ret	204	ret
205		205
206	endp	206	endp
207		207
208		208
209	;;;;;;;;;;;;;;;;;;;;;;;;;;;;	209	;;;;;;;;;;;;;;;;;;;;;;;;;;;;
210	;; ;;	210	;; ;;
211	;; proc SERVICE_PROC ;;	211	;; proc SERVICE_PROC ;;
212	;; ;;	212	;; ;;
213	;; (standard driver proc) ;;	213	;; (standard driver proc) ;;
214	;;;;;;;;;;;;;;;;;;;;;;;;;;;;	214	;;;;;;;;;;;;;;;;;;;;;;;;;;;;
215		215
216	align 4	216	align 4
217	proc service_proc stdcall, ioctl:dword	217	proc service_proc stdcall, ioctl:dword
218		218
219	mov edx, [ioctl]	219	mov edx, [ioctl]
220	mov eax, [IOCTL.io_code]	220	mov eax, [IOCTL.io_code]
221		221
222	;------------------------------------------------------	222	;------------------------------------------------------
223		223
224	cmp eax, 0 ;SRV_GETVERSION	224	cmp eax, 0 ;SRV_GETVERSION
225	jne @F	225	jne @F
226		226
227	cmp [IOCTL.out_size], 4	227	cmp [IOCTL.out_size], 4
228	jb .fail	228	jb .fail
229	mov eax, [IOCTL.output]	229	mov eax, [IOCTL.output]
230	mov [eax], dword API_VERSION	230	mov [eax], dword API_VERSION
231		231
232	xor eax, eax	232	xor eax, eax
233	ret	233	ret
234		234
235	;------------------------------------------------------	235	;------------------------------------------------------
236	@@:	236	@@:
237	cmp eax, 1 ;SRV_HOOK	237	cmp eax, 1 ;SRV_HOOK
238	jne .fail	238	jne .fail
239		239
240	cmp [IOCTL.inp_size], 3 ; Data input must be at least 3 bytes	240	cmp [IOCTL.inp_size], 3 ; Data input must be at least 3 bytes
241	jb .fail	241	jb .fail
242		242
243	mov eax, [IOCTL.input]	243	mov eax, [IOCTL.input]
244	cmp byte [eax], 1 ; 1 means device number and bus number (pci) are given	244	cmp byte [eax], 1 ; 1 means device number and bus number (pci) are given
245	jne .fail ; other types arent supported for this card yet	245	jne .fail ; other types arent supported for this card yet
246		246
247	; check if the device is already listed	247	; check if the device is already listed
248		248
249	mov esi, device_list	249	mov esi, device_list
250	mov ecx, [devices]	250	mov ecx, [devices]
251	test ecx, ecx	251	test ecx, ecx
252	jz .firstdevice	252	jz .firstdevice
253		253
254	; mov eax, [IOCTL.input] ; get the pci bus and device numbers	254	; mov eax, [IOCTL.input] ; get the pci bus and device numbers
255	mov ax , [eax+1] ;	255	mov ax , [eax+1] ;
256	.nextdevice:	256	.nextdevice:
257	mov ebx, [esi]	257	mov ebx, [esi]
258	cmp al, byte[device.pci_bus]	258	cmp al, byte[device.pci_bus]
259	jne @f	259	jne @f
260	cmp ah, byte[device.pci_dev]	260	cmp ah, byte[device.pci_dev]
261	je .find_devicenum ; Device is already loaded, let's find it's device number	261	je .find_devicenum ; Device is already loaded, let's find it's device number
262	@@:	262	@@:
263	add esi, 4	263	add esi, 4
264	loop .nextdevice	264	loop .nextdevice
265		265
266		266
267	; This device doesnt have its own eth_device structure yet, lets create one	267	; This device doesnt have its own eth_device structure yet, lets create one
268	.firstdevice:	268	.firstdevice:
269	cmp [devices], MAX_DEVICES ; First check if the driver can handle one more card	269	cmp [devices], MAX_DEVICES ; First check if the driver can handle one more card
270	jae .fail	270	jae .fail
271		271
272	allocate_and_clear ebx, sizeof.device_struct, .fail ; Allocate the buffer for device structure	272	allocate_and_clear ebx, sizeof.device_struct, .fail ; Allocate the buffer for device structure
273		273
274	; Fill in the direct call addresses into the struct	274	; Fill in the direct call addresses into the struct
275		275
276	mov [device.reset], reset	276	mov [device.reset], reset
277	mov [device.transmit], transmit	277	mov [device.transmit], transmit
278	mov [device.unload], unload	278	mov [device.unload], unload
279	mov [device.name], my_service	279	mov [device.name], my_service
280		280
281	; save the pci bus and device numbers	281	; save the pci bus and device numbers
282		282
283	mov eax, [IOCTL.input]	283	mov eax, [IOCTL.input]
284	movzx ecx, byte[eax+1]	284	movzx ecx, byte[eax+1]
285	mov [device.pci_bus], ecx	285	mov [device.pci_bus], ecx
286	movzx ecx, byte[eax+2]	286	movzx ecx, byte[eax+2]
287	mov [device.pci_dev], ecx	287	mov [device.pci_dev], ecx
288		288
289	; Now, it's time to find the base io addres of the PCI device	289	; Now, it's time to find the base io addres of the PCI device
290		290
291	PCI_find_io	291	PCI_find_io
292		292
293	; We've found the io address, find IRQ now	293	; We've found the io address, find IRQ now
294		294
295	PCI_find_irq	295	PCI_find_irq
296		296
297	DEBUGF 2,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\	297	DEBUGF 1,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\
298	[device.pci_dev]:1,[device.pci_bus]:1,[device.irq_line]:1,[device.io_addr]:4	298	[device.pci_dev]:1,[device.pci_bus]:1,[device.irq_line]:1,[device.io_addr]:4
299		299
300	; Ok, the eth_device structure is ready, let's probe the device	300	; Ok, the eth_device structure is ready, let's probe the device
301		301
302	pushf	302	pushf
303	cli ; disable ints until initialisation is done	303	cli ; disable ints until initialisation is done
304		304
305	call probe ; this function will output in eax	305	call probe ; this function will output in eax
306	test eax, eax	306	test eax, eax
307	jnz .err ; If an error occured, exit	307	jnz .err ; If an error occured, exit
308		308
309	mov eax, [devices] ; Add the device structure to our device list	309	mov eax, [devices] ; Add the device structure to our device list
310	mov [device_list+4*eax], ebx ; (IRQ handler uses this list to find device)	310	mov [device_list+4*eax], ebx ; (IRQ handler uses this list to find device)
311	inc [devices] ;	311	inc [devices] ;
312		312
313	popf	313	popf
314		314
315	mov [device.type], NET_TYPE_ETH	315	mov [device.type], NET_TYPE_ETH
316	call NetRegDev	316	call NetRegDev
317		317
318	cmp eax, -1	318	cmp eax, -1
319	je .err	319	je .err
320		320
321	ret	321	ret
322		322
323	; If the device was already loaded, find the device number and return it in eax	323	; If the device was already loaded, find the device number and return it in eax
324		324
325	.find_devicenum:	325	.find_devicenum:
326	DEBUGF 2,"Trying to find device number of already registered device\n"	326	DEBUGF 2,"Trying to find device number of already registered device\n"
327	call NetPtrToNum ; This kernel procedure converts a pointer to device struct in ebx	327	call NetPtrToNum ; This kernel procedure converts a pointer to device struct in ebx
328	; into a device number in edi	328	; into a device number in edi
329	mov eax, edi ; Application wants it in eax instead	329	mov eax, edi ; Application wants it in eax instead
330	DEBUGF 2,"Kernel says: %u\n", eax	330	DEBUGF 2,"Kernel says: %u\n", eax
331	ret	331	ret
332		332
333	; If an error occured, remove all allocated data and exit (returning -1 in eax)	333	; If an error occured, remove all allocated data and exit (returning -1 in eax)
334		334
335	.err:	335	.err:
336	stdcall KernelFree, ebx	336	stdcall KernelFree, ebx
337		337
338	.fail:	338	.fail:
339	or eax, -1	339	or eax, -1
340	ret	340	ret
341		341
342	;------------------------------------------------------	342	;------------------------------------------------------
343	endp	343	endp
344		344
345		345
346		346
347		347
348		348
349	;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;	349	;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
350	;; ;;	350	;; ;;
351	;; Actual Hardware dependent code starts here ;;	351	;; Actual Hardware dependent code starts here ;;
352	;; ;;	352	;; ;;
353	;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;	353	;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
354		354
355		355
356	unload:	356	unload:
357	; TODO: (in this particular order)	357	; TODO: (in this particular order)
358	;	358	;
359	; - Stop the device	359	; - Stop the device
360	; - Detach int handler	360	; - Detach int handler
361	; - Remove device from local list (device_list)	361	; - Remove device from local list (device_list)
362	; - call unregister function in kernel	362	; - call unregister function in kernel
363	; - Remove all allocated structures and buffers the card used	363	; - Remove all allocated structures and buffers the card used
364		364
365	or eax,-1	365	or eax,-1
366		366
367	ret	367	ret
368		368
369		369
370	;-------------	370	;-------------
371	;	371	;
372	; Probe	372	; Probe
373	;	373	;
374	;-------------	374	;-------------
375		375
376	align 4	376	align 4
377	probe:	377	probe:
378		378
379	DEBUGF 1,"Probing i8255x\n"	379	DEBUGF 1,"Probing\n"
380		380
381	PCI_make_bus_master	381	PCI_make_bus_master
382		382
383	;---------------------------	383	;---------------------------
384	; First, identify the device	384	; First, identify the device
385		385
386	stdcall PciRead32, [device.pci_bus], [device.pci_dev], PCI_VENDOR_ID ; get device/vendor id	386	stdcall PciRead32, [device.pci_bus], [device.pci_dev], PCI_VENDOR_ID ; get device/vendor id
387		387
388	DEBUGF 1,"Vendor_id=0x%x\n", ax	388	DEBUGF 1,"Vendor_id=0x%x\n", ax
389		389
390	cmp ax, 0x8086	390	cmp ax, 0x8086
391	jne .notfound	391	jne .notfound
392	shr eax, 16	392	shr eax, 16
393		393
394	DEBUGF 1,"Device_id=0x%x\n", ax	394	DEBUGF 1,"Device_id=0x%x\n", ax
395		395
396	mov ecx, DEVICE_IDs	396	mov ecx, DEVICE_IDs
397	mov edi, device_id_list	397	mov edi, device_id_list
398	repne scasw	398	repne scasw
399	jne .notfound	399	jne .notfound
400	jmp .found	400	jmp .found
401		401
402	.notfound:	402	.notfound:
403	DEBUGF 1,"ERROR: Unsupported device!\n"	403	DEBUGF 2,"Unsupported device!\n"
404	or eax, -1	404	or eax, -1
405	ret	405	ret
406		406
407	.found:	407	.found:
408		408
409	call ee_get_width	409	call ee_get_width
410	call MAC_read_eeprom	410	call MAC_read_eeprom
411		411
412	;;; TODO: detect phy	412	;;; TODO: detect phy
413		413
414		414
415		415
416	;----------	416	;----------
417	;	417	;
418	; Reset	418	; Reset
419	;	419	;
420	;----------	420	;----------
421		421
422	align 4	422	align 4
423	reset:	423	reset:
424		424
425	movzx eax, [device.irq_line]	425	movzx eax, [device.irq_line]
426	DEBUGF 1,"Attaching int handler to irq %x\n", eax:1	426	DEBUGF 1,"Attaching int handler to irq %x\n", eax:1
427	stdcall AttachIntHandler, eax, int_handler, dword 0	427	stdcall AttachIntHandler, eax, int_handler, dword 0
428	test eax, eax	428	test eax, eax
429	jnz @f	429	jnz @f
430	DEBUGF 1,"\nCould not attach int handler!\n"	430	DEBUGF 2,"Could not attach int handler!\n"
431	; or eax, -1	431	; or eax, -1
432	; ret	432	; ret
433	@@:	433	@@:
434		434
435	DEBUGF 1,"Resetting %s\n", my_service	435	DEBUGF 1,"Resetting\n"
436		436
437	;---------------	437	;---------------
438	; reset the card	438	; reset the card
439		439
440	set_io 0	440	set_io 0
441	set_io reg_port	441	set_io reg_port
442	xor eax, eax ; Software Reset	442	xor eax, eax ; Software Reset
443	out dx, eax	443	out dx, eax
444		444
445	mov esi, 10	445	mov esi, 10
446	call Sleep ; Give the card time to warm up.	446	call Sleep ; Give the card time to warm up.
447		447
448	;---------------------------------	448	;---------------------------------
449	; Tell device where to store stats	449	; Tell device where to store stats
450		450
451	lea eax, [lstats]	451	lea eax, [lstats]
452	GetRealAddr	452	GetRealAddr
453	set_io 0	453	set_io 0
454	set_io reg_scb_ptr	454	set_io reg_scb_ptr
455	out dx, eax	455	out dx, eax
456		456
457	mov ax, INT_MASK + CU_STATSADDR	457	mov ax, INT_MASK + CU_STATSADDR
458	set_io reg_scb_cmd	458	set_io reg_scb_cmd
459	out dx, ax	459	out dx, ax
460	call cmd_wait	460	call cmd_wait
461		461
462	;-----------------	462	;-----------------
463	; setup RX	463	; setup RX
464		464
465	set_io reg_scb_ptr	465	set_io reg_scb_ptr
466	xor eax, eax	466	xor eax, eax
467	out dx, eax	467	out dx, eax
468		468
469	set_io reg_scb_cmd	469	set_io reg_scb_cmd
470	mov ax, INT_MASK + RX_ADDR_LOAD	470	mov ax, INT_MASK + RX_ADDR_LOAD
471	out dx, ax	471	out dx, ax
472	call cmd_wait	472	call cmd_wait
473		473
474	;-----------------------------	474	;-----------------------------
475	; Create RX and TX descriptors	475	; Create RX and TX descriptors
476		476
477	call create_ring	477	call create_ring
478		478
479	; RX start	479	; RX start
480		480
481	set_io 0	481	set_io 0
482	set_io reg_scb_ptr	482	set_io reg_scb_ptr
483	mov eax, [device.rx_desc]	483	mov eax, [device.rx_desc]
484	GetRealAddr	484	GetRealAddr
485	out dx, eax	485	out dx, eax
486		486
487	mov ax, INT_MASK + RX_START	487	mov ax, INT_MASK + RX_START
488	set_io reg_scb_cmd	488	set_io reg_scb_cmd
489	out dx, ax	489	out dx, ax
490	call cmd_wait	490	call cmd_wait
491		491
492	; Set-up TX	492	; Set-up TX
493		493
494	set_io reg_scb_ptr	494	set_io reg_scb_ptr
495	xor eax, eax	495	xor eax, eax
496	out dx, eax	496	out dx, eax
497		497
498	set_io reg_scb_cmd	498	set_io reg_scb_cmd
499	mov ax, INT_MASK + CU_CMD_BASE	499	mov ax, INT_MASK + CU_CMD_BASE
500	out dx, ax	500	out dx, ax

Subversion Repositories Kolibri OS

(root)/drivers/ethernet/i8255x.asm – Rev 3545 → 3845