165 lines
6.3 KiB
C
165 lines
6.3 KiB
C
/*
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hw.h
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(C) 2018 Henryk Richter <henryk.richter@gmx.net>
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Hardware dependent functions
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*/
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#ifndef _INC_HW_H
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#define _INC_HW_H
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#include "compiler.h"
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#ifndef DEVBASETYPE
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struct devbase;
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#define DEVBASETYPE struct devbase
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#endif
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#ifndef DEVBASEP
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#define DEVBASEP DEVBASETYPE *db
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#endif
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/* states for each NIC speed */
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#define HW_MAC_ISACTIVE(_status_,_spd_) ( ((_status_)>>(_spd_)) & 3 ) /* returns 0 if inactive, 0...3 if active */
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#define HW_MAC_OFF 0 /* this speed is inactive */
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#define HW_MAC_ON 1 /* on, half duplex */
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#define HW_MAC_ON_FDX 2 /* on, full duplex */
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#define HW_MAC_ON_FDX_FC 3 /* on, full duplex, flow-control */
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/*
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MAC definitions
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(flag Mask)
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-> conceptually, this layout can be used for current
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running mode as well as autonegotiation capabilities
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masks for local NIC and peer
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-> is fiber optic Ethernet relevant for us Amigans?
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*/
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#define HW_MAC_INVALID (-1) /* no info available */
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#define HW_MAC_LINK_UP 1 /* link is up */
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#define HW_MAC_AUTONEGOTIATION 2 /* autonegotiation enabled */
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/* two bits each to handle the four different states per speed */
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#define HW_MACB_SPEED10 2 /* bit for 10 MBit/s mask */
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#define HW_MACB_SPEED100 4 /* bit for 100 MBit/s mask */
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#define HW_MACB_SPEED100T2 6 /* bit for 100 MBit/s mask (100BaseT2) */
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#define HW_MACB_SPEED100T4 8 /* bit for 100 MBit/s mask (100BaseT4) */
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#define HW_MACB_SPEED1000 10 /* ... */
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#define HW_MACB_SPEED2500 12
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#define HW_MACB_SPEED5000 14
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#define HW_MACB_SPEED10000 16 /* Am I optimistic ? */
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#define HW_MACB_SPEEDS_END 18 /* this is the next free bit */
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#define HW_MAC_SPEEDSMASK ((1<<HW_MACB_SPEEDS_END)-4)
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#define HW_MAC_NEXTSPEED(_a_) ( (_a_)+2 )
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/* find number of boards (stateless) */
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ASM SAVEDS LONG hw_Find_Boards( ASMR(a0) DEVBASEP ASMREG(a0) );
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/* allocate / release a board
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note: alloc may be called more than once, keep track of number of openings
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*/
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ASM SAVEDS LONG hw_AllocBoard( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0) );
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ASM SAVEDS LONG hw_ReleaseBoard( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0) );
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ASM SAVEDS LONG hw_GetMacAddress(ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0),
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ASMR(a1) UBYTE *mac ASMREG(a1) );
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/* initialize global management stuff for hardware (called once on server startup) */
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/*
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Call order
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- hw_Setup
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hw_ConfigInit
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hw_ConfigUpdate
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hw_Attach
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main loop: send/recv
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hw_Detach
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- hw_Shutdown
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*/
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ASM SAVEDS LONG hw_Setup( ASMR(a0) DEVBASEP ASMREG(a0) );
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ASM SAVEDS void hw_Shutdown( ASMR(a0) DEVBASEP ASMREG(a0) );
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ASM SAVEDS LONG hw_Attach( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0));
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ASM SAVEDS void hw_Detach( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0));
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ASM SAVEDS void hw_ConfigInit( ASMR(a0) DEVBASEP ASMREG(a0) );
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ASM SAVEDS void hw_ConfigUpdate( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(a1) void * ASMREG(a1) );
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/*
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send a single frame to the hardware:
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- either fully assembled frame (14 bytes DMAC,SMAC,TYPE followed by payload
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- or payload in "frame" and 14 byte header in "header"
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- provide Makefile-level definition of HW_DMA_TX in the latter case
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- note: if you pass "header==NULL" with active HW_DMA_TX definition,
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the hw_send_frame assumes the header to be present (SANA-II RAW frames) and
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is handling "frame" as fully assembled frame
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*/
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ASM SAVEDS LONG hw_send_frame( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0),
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ASMR(a1) UBYTE *frame ASMREG(a1),
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ASMR(d1) ULONG framesize ASMREG(d1)
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#ifdef HW_DMA_TX
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,ASMR(a2) UBYTE *header ASMREG(a2)
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#endif
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);
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ASM SAVEDS LONG hw_recv_frame( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0),
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ASMR(a1) UBYTE *frame ASMREG(a1) );
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ASM SAVEDS LONG hw_recv_pending( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0) );
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ASM SAVEDS LONG hw_check_link_change( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0) );
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ASM SAVEDS LONG hw_change_multicast( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0),
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ASMR(a1) struct List * ASMREG(a1) );
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ASM SAVEDS LONG hw_get_mac_status( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0) );
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/* read PHY register (return -1 in case of error) */
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ASM SAVEDS LONG hw_read_phy( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0),
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ASMR(d1) ULONG reg ASMREG(d1) );
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/* write PHY register (return -1 in case of error) */
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ASM SAVEDS LONG hw_write_phy( ASMR(a0) DEVBASEP ASMREG(a0),
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ASMR(d0) ULONG unit ASMREG(d0),
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ASMR(d1) ULONG reg ASMREG(d1),
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ASMR(d2) ULONG value ASMREG(d2) );
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/* kept this global for now: Z-II/Z-III boards share the same interrupt */
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ASM SAVEDS ULONG hw_recv_sigmask( ASMR(a0) DEVBASEP ASMREG(a0) );
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/* Configuration template: straight replica of Plipbox general options */
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struct CommonConfig {
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ULONG nospecialstats;
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LONG *priority;
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ULONG *bps;
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ULONG *mtu;
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};
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#define COMMON_TEMPLATE "NOSPECIALSTATS/S,PRIORITY=PRI/K/N,BPS/K/N,MTU/K/N,"
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/* additional definitions */
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#include "hwprivate.h"
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#endif /* _INC_HW_H */
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