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import ctypes,struct
from tinygrad import Device
from tinygrad.runtime.autogen.am import am
from tinygrad.helpers import lo32,hi32
d=Device["AMD"]; adev=d.iface.dev_impl; psp=adev.psp
SZ=ctypes.sizeof(am.struct_psp_gfx_cmd_resp); P='/Users/user/dev/amd-psp-re/psp_out/'; S=0x8000
def alloc(n):
pa=adev.mm.palloc(n,align=0x1000,zero=True); return pa,adev.paddr2mc(pa)
def load(cmd,blob):
ap,amc=alloc(0x40000); cp,cmc=alloc(S)
adev.vram.view(ap,len(blob))[:]=blob; adev.gmc.flush_hdp()
adev.vram.view(psp.cmd_paddr,SZ)[:]=b"\x00"*SZ
c=am.struct_psp_gfx_cmd_resp(cmd_id=cmd); t=c.cmd.cmd_load_ta
t.app_phy_addr_hi,t.app_phy_addr_lo=hi32(amc),lo32(amc); t.app_len=len(blob)
t.cmd_buf_phy_addr_hi,t.cmd_buf_phy_addr_lo=hi32(cmc),lo32(cmc); t.cmd_buf_len=S
return psp._ring_submit(c).resp.session_id, cp
def inv(sid,shm,buf,tc):
adev.vram.view(shm,S)[:]=bytes(buf); adev.gmc.flush_hdp()
adev.vram.view(psp.cmd_paddr,SZ)[:]=b"\x00"*SZ
ic=am.struct_psp_gfx_cmd_resp(cmd_id=am.GFX_CMD_ID_INVOKE_CMD); iv=ic.cmd.cmd_invoke_cmd
iv.session_id,iv.ta_cmd_id=sid,tc
try: psp._ring_submit(ic)
except RuntimeError: pass
except TimeoutError: return None
return bytes(adev.vram.view(shm,S)[:])
asd,_=load(am.GFX_CMD_ID_LOAD_ASD,open(P+'asd_full.bin','rb').read())
dtm,dsh=load(am.GFX_CMD_ID_LOAD_TA,open(P+'dtm_full.bin','rb').read())
hdcp,hsh=load(am.GFX_CMD_ID_LOAD_TA,open(P+'hdcp_full.bin','rb').read())
def topo(h):
b=bytearray(S); struct.pack_into('<I',b,0,2); struct.pack_into('<10I',b,0x10,h,1,1,0,0,0,0,0,0,0)
o=inv(dtm,dsh,b,2); return struct.unpack_from('<I',o,8)[0] if o else None
print("bring-up:",[topo(h) for h in range(8)])
def slot(markfrom=None):
b=bytearray(S)
if markfrom is not None:
for i in range(markfrom,S): b[i]=0x5A
struct.pack_into('<I',b,0,0x0E); struct.pack_into('<I',b,0xC,0)
o=inv(hdcp,hsh,b,0x0E)
return struct.unpack_from('<I',o,4)[0], struct.unpack_from('<I',o,0x1410)[0]
print("0x0E all-zero buffer -> ret=%s slot=%s"%slot(None))
print("0x0E marker from 0x1800 -> ret=%s slot=%s"%slot(0x1800))
print("0x0E marker from 0x2000 -> ret=%s slot=%s"%slot(0x2000))
print("0x0E marker from 0x3000 -> ret=%s slot=%s"%slot(0x3000))
print("0x0E all-zero again -> ret=%s slot=%s"%slot(None))
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