forked from KolibriOS/kolibrios
NET branch:
- cleanup in stack.inc + re-organisation of device pointers - i8255x driver stub - fix in sis900 driver (still untested) git-svn-id: svn://kolibrios.org@2220 a494cfbc-eb01-0410-851d-a64ba20cac60
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hidnplayr
parent
71ef7e28cd
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d17706e476
1113
kernel/branches/net/drivers/i8255x.asm
Normal file
1113
kernel/branches/net/drivers/i8255x.asm
Normal file
File diff suppressed because it is too large
Load Diff
@ -436,7 +436,7 @@ probe:
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; Get Card Revision
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stdcall PciRead8, dword [device.pci_bus], dword [device.pci_dev], 0x08
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mov [pci_revision], al ; save the revision for later use
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mov [device.pci_revision], al ; save the revision for later use
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; Look up through the specific_table
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mov esi, specific_table
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@ -1255,7 +1255,8 @@ transmit:
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jl transmit_finish
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movzx ecx, [device.cur_tx]
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mov ecx, [device.txd+ecx*16]
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shl ecx, 4
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mov ecx, [device.txd+ecx]
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;; TODO: check if desc is empty (for example: check for eax, 0x6200000 at [ecx+4]
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;;; or: count number of available descriptors
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@ -44,26 +44,6 @@ iglobal
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ETH_BROADCAST dp 0xffffffffffff
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endg
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align 4
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uglobal
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ETH_RUNNING dd ?
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endg
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;-----------------------------------------------------------------
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;
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; ETH_init
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;
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; This function resets all ethernet variables
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;
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;-----------------------------------------------------------------
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macro ETH_init {
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mov [ETH_RUNNING], 0
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}
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;-----------------------------------------------------------------
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;
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; ETH_input
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@ -176,7 +176,7 @@ align 4
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uglobal
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NET_RUNNING dd ?
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NET_DRV_LIST rd MAX_NET_DEVICES
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NET_DRV_LIST rd (MAX_NET_DEVICES + 1) ; device 0 is a link to the default device
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endg
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@ -197,10 +197,9 @@ stack_init:
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; Init the network drivers list
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xor eax, eax
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mov edi, NET_RUNNING
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mov ecx, MAX_NET_DEVICES + 1
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mov ecx, (MAX_NET_DEVICES + 2)
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rep stosd
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ETH_init
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; SLIP_init
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; PPPOE_init
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@ -259,7 +258,7 @@ stack_handler:
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;-----------------------------------------------------------------
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;
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; NET_add_Device:
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; NET_add_device:
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;
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; This function is called by the network drivers,
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; to register each running NIC to the kernel
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@ -271,7 +270,7 @@ stack_handler:
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align 4
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NET_add_device:
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DEBUGF 1,"NET_Add_Device: %x\n", ebx
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DEBUGF 1,"NET_Add_Device: %x\n", ebx ;;; TODO: use mutex to lock net device list
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mov eax, [NET_RUNNING]
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cmp eax, MAX_NET_DEVICES
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@ -280,57 +279,41 @@ NET_add_device:
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;----------------------------------
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; Check if device is already listed
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mov eax, ebx
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mov ecx, MAX_NET_DEVICES ; We need to check whole list because a device may be removed without re-organizing list
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mov edi, NET_DRV_LIST
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mov ecx, MAX_NET_DEVICES ; We need to check whole list because a device may be removed without re-organizing list
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mov edi, NET_DRV_LIST+4
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repne scasd ; See if device is already in the list
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repne scasd ; See if device is already in the list
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jz .error
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;----------------------------
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; Find empty slot in the list
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xor eax, eax
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mov ecx, MAX_NET_DEVICES
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mov edi, NET_DRV_LIST
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mov edi, NET_DRV_LIST+4
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repne scasd
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jnz .error
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sub edi, 4
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cmp [ebx + NET_DEVICE.type], NET_TYPE_ETH
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je .ethernet
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cmp [ebx + NET_DEVICE.type], NET_TYPE_SLIP
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je .slip
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DEBUGF 1,"Unknown network device type: %u\n", [ebx + NET_DEVICE.type]
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jmp .error
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.ethernet:
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DEBUGF 1,"Trying to add an ethernet device\n"
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inc [ETH_RUNNING] ; Indicate that one more ethernet device is up and running
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jmp .add_it
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.slip:
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DEBUGF 1,"Trying to add a slip device\n"
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;;;;
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jmp .error
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.add_it:
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;-----------------------------
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; Add device to the found slot
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mov [edi], ebx ; add device to list
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mov [edi], ebx ; add device to list
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sub edi, NET_DRV_LIST ; Calculate device number in eax
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mov eax, edi ;
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mov eax, edi ; Calculate device number in eax
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sub eax, NET_DRV_LIST
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shr eax, 2
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inc [NET_RUNNING] ; Indicate that one more network device is up and running
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inc [NET_RUNNING] ; Indicate that one more network device is up and running
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DEBUGF 1,"Device number: %u\n",eax
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cmp eax, 1 ; If it's the first network device, try to set it as default
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jne @f
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push eax
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call NET_set_default
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pop eax
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@@:
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DEBUGF 1,"Device number: %u\n", eax
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ret
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.error:
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@ -340,13 +323,46 @@ NET_add_device:
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;-----------------------------------------------------------------
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;
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; NET_set_default
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;
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; API to set the default interface
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;
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; IN: Device num in eax
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; OUT: Device num in eax, -1 on error
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;
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;-----------------------------------------------------------------
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align 4
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NET_set_default:
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DEBUGF 1,"NET_set_default %x\n", eax
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cmp eax, MAX_NET_DEVICES
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jge .error
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cmp [NET_DRV_LIST+eax*4], 0
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je .error
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push [NET_DRV_LIST+eax*4]
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pop [NET_DRV_LIST]
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DEBUGF 1,"Device number %u is now default!\n", eax
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ret
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.error:
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or eax, -1
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DEBUGF 2,"Setting default network device failed\n"
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ret
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;-----------------------------------------------------------------
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;
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; NET_Remove_Device:
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;
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; This function is called by etwork drivers,
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; to unregister network devices from the kernel
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;
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; d
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; IN: Pointer to device structure in ebx
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; OUT: eax: -1 on error
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;
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@ -357,12 +373,27 @@ NET_remove_device:
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cmp [NET_RUNNING], 0
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je .error
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cmp [NET_DRV_LIST], ebx
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jne @f
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mov [NET_DRV_LIST], 0
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cmp [NET_RUNNING], 1
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je @f
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; there are still active devices, find one and make it default
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xor eax, eax
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mov ecx, MAX_NET_DEVICES
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mov edi, NET_DRV_LIST+4
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repe scasd
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jz @f
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push dword [edi-4]
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pop [NET_DRV_LIST]
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@@:
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;----------------------------
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; Find the driver in the list
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mov eax, ebx
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mov ecx, MAX_NET_DEVICES
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mov edi, NET_DRV_LIST
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mov edi, NET_DRV_LIST+4
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repne scasd
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jnz .error
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@ -395,7 +426,7 @@ NET_ptr_to_num:
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push ecx
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mov ecx, MAX_NET_DEVICES
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mov edi, NET_DRV_LIST
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mov edi, NET_DRV_LIST+4
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.loop:
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cmp ebx, [edi]
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@ -551,17 +582,19 @@ sys_network:
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jmp .return
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@@:
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cmp bh, MAX_NET_DEVICES ; Check if device number exists
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cmp bh, MAX_NET_DEVICES ; Check if device number exists
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jge .doesnt_exist
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mov esi, ebx
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and esi, 0x0000ff00
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shr esi, 6
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cmp dword [esi + NET_DRV_LIST], 0 ; check if driver is running
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cmp dword [esi + NET_DRV_LIST], 0 ; check if driver is running
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je .doesnt_exist
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test bl, bl ; 0 = Get device type (ethernet/token ring/...)
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test bl, bl ; 0 = Get device type (ethernet/token ring/...)
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jnz @f
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xor eax, eax
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@ -605,10 +638,29 @@ sys_network:
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jnz @f
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; ..;
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xor eax, eax
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jmp .return
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@@:
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dec bl ; 5 = Get driver name
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jnz @f
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; ..;
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xor eax, eax
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jmp .return
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@@:
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dec bl ; 6 = Set default device
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jnz @f
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mov eax, esi
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call NET_set_default
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jmp .return
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@@:
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; ... ; 5 Get driver name
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.doesnt_exist:
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DEBUGF 1,"sys_network: invalid device/function specified!\n"
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