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implemented PHY, but still only occasionly transmitted packets. Obviously, there's a bug somewhere ;)

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This commit is contained in:
Markus Fröschle
2014-01-02 21:33:27 +00:00
parent b1edc5cfce
commit b4e819db9a
14 changed files with 396 additions and 211 deletions
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43
BaS_gcc/sys/exceptions.S
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@@ -295,24 +295,27 @@ init_vec_loop:
lea handler_psc3(pc),a1
// PSC3 interrupt source = 32
move.l a1,(INT_SOURCE_PSC3 + 64) * 4(a0)
// timer vectors (triggers when vbashi gets changed, used for video page copy)
lea handler_gpt0(pc),a1
// GPT0 interrupt source = 62
move.l a1,(INT_SOURCE_GPT0 + 64) * 4(a0)
#endif /* MACHINE_FIREBEE */
// install isr handlers for the three GPT timers,
// the FEC interrupts and the DMA task interrupts
// (used by network driver in BaS and MiNT)
lea _lowlevel_isr_handler,a1
// install lowlevel_isr_handler for the three GPT timers
lea _lowlevel_isr_handler(pc),a1
move.l a1,(INT_SOURCE_GPT1 + 64) * 4(a0)
move.l a1,(INT_SOURCE_GPT2 + 64) * 4(a0)
move.l a1,(INT_SOURCE_GPT3 + 64) * 4(a0)
// install lowlevel_isr_handler for the FEC0 interrupt
move.l a1,(INT_SOURCE_FEC0 + 64) * 4(a0)
#ifndef MACHINE_FIREBEE
// second FEC not wired on the FireBee
// FEC1 not wired on the FireBee
move.l a1,(INT_SOURCE_FEC1 + 64) * 4(a0)
#endif
// install lowlevel_isr_handler for DMA interrupts
move.l a1,(INT_SOURCE_DMA + 64) * 4(a0)
move.l (sp)+,a2 // Restore registers
@@ -990,24 +993,16 @@ video_chg_end:
.extern _isr_execute_handler
_lowlevel_isr_handler:
move.w #0x2700,sr
link a6,#-4*4
movem.l d0-d1/a0-a1,(sp)
move.w #0x2700,sr // disable interrupts
link a6,#-4*4 // make room for
movem.l d0-d1/a0-a1,(sp) // gcc scratch registers and save them
move.w 4(a6),d0
lsr.l #2,d0
andi.l #0x0000ff,d0
move.l d0,-(sp)
jsr _isr_execute_handler
lea 4(sp),sp
cmp.l #1,d0
//beq handled // this is probably not a too bright idea for hw interrupts not known to TOS
bra handled
nothandled:
movem.l (sp),d0-d1/a0-a1
unlk a6
jmp std_exc_vec
handled:
movem.l (sp),d0-d1/a0-a1
unlk a6
move.w 4(a6),d0 // fetch vector number from stack
lsr.l #2,d0 // move it in place
andi.l #0x000000ff,d0 // mask it out
move.l d0,-(sp) // push it
jsr _isr_execute_handler // call the C handler
lea 4(sp),sp // adjust stack
movem.l (sp),d0-d1/a0-a1 // restore registers
unlk a6 // cleanup stack
rte