m1n1/proxyclient/proxy.py
Hector Martin ed32cf6328 hv_exc: Add a hacky STEP feature to interrupt guest after a while
This should eventually be a proper single step feature or something, but
for now...

Signed-off-by: Hector Martin <marcan@marcan.st>
2021-05-09 03:25:51 +09:00

861 lines
26 KiB
Python
Executable file

#!/usr/bin/env python3
# SPDX-License-Identifier: MIT
import os, sys, struct, serial, time
from construct import *
from utils import *
from sysreg import *
from enum import IntEnum, IntFlag
from serial.tools.miniterm import Miniterm
def hexdump(s, sep=" "):
return sep.join(["%02x"%x for x in s])
def hexdump32(s, sep=" "):
vals = struct.unpack("<%dI" % (len(s)//4), s)
return sep.join(["%08x"%x for x in vals])
def ascii(s):
s2 = ""
for c in s:
if c < 0x20 or c > 0x7e:
s2 += "."
else:
s2 += chr(c)
return s2
def pad(s,c,l):
if len(s) < l:
s += c * (l - len(s))
return s
def chexdump(s,st=0):
for i in range(0,len(s),16):
print("%08x %s %s |%s|" % (
i + st,
hexdump(s[i:i+8], ' ').rjust(23),
hexdump(s[i+8:i+16], ' ').rjust(23),
ascii(s[i:i+16]).rjust(16)))
def chexdump32(s, st=0, abbreviate=True):
last = None
skip = False
for i in range(0,len(s),32):
val = s[i:i+32]
if val == last and abbreviate:
if not skip:
print("%08x *" % (i + st))
skip = True
else:
print("%08x %s" % (
i + st,
hexdump32(val, ' ')))
last = val
skip = False
# Hack to disable input buffer flushing
class Serial(serial.Serial):
def _reset_input_buffer(self):
return
def reset_input_buffer(self):
super()._reset_input_buffer()
class UartError(RuntimeError):
pass
class UartTimeout(UartError):
pass
class UartCMDError(UartError):
pass
class UartChecksumError(UartError):
pass
class UartRemoteError(UartError):
pass
class START(IntEnum):
BOOT = 0
EXCEPTION = 1
EXCEPTION_LOWER = 2
class EXC(IntEnum):
SYNC = 0
IRQ = 1
FIQ = 2
SERROR = 3
class EXC_RET(IntEnum):
UNHANDLED = 1
HANDLED = 2
EXIT_GUEST = 3
STEP = 4
ExcInfo = Struct(
"spsr" / RegAdapter(SPSR),
"elr" / Int64ul,
"esr" / RegAdapter(ESR),
"far" / Int64ul,
"regs" / Array(31, Int64ul),
"sp" / Array(3, Int64ul),
"mpidr" / Int64ul,
"elr_phys" / Int64ul,
"far_phys" / Int64ul,
"sp_phys" / Int64ul,
)
class UartInterface:
REQ_NOP = 0x00AA55FF
REQ_PROXY = 0x01AA55FF
REQ_MEMREAD = 0x02AA55FF
REQ_MEMWRITE = 0x03AA55FF
REQ_BOOT = 0x04AA55FF
ST_OK = 0
ST_BADCMD = -1
ST_INVAL = -2
ST_XFERERR = -3
ST_CSUMERR = -4
CMD_LEN = 56
REPLY_LEN = 36
def __init__(self, device=None, debug=False):
self.debug = debug
self.devpath = None
if device is None:
device = os.environ.get("M1N1DEVICE", "/dev/ttyUSB0:115200")
if isinstance(device, str):
baud = 115200
if ":" in device:
device, baud = device.rsplit(":", 1)
baud = int(baud)
self.devpath = device
self.baudrate = baud
device = Serial(self.devpath, baud)
self.dev = device
self.dev.timeout = 0
self.dev.flushOutput()
self.dev.flushInput()
self.pted = False
#d = self.dev.read(1)
#while d != "":
#d = self.dev.read(1)
self.dev.timeout = 3
self.tty_enable = True
self.handlers = {}
def checksum(self, data):
sum = 0xDEADBEEF;
for c in data:
sum *= 31337
sum += c ^ 0x5a
sum &= 0xFFFFFFFF
return (sum ^ 0xADDEDBAD) & 0xFFFFFFFF
def readfull(self, size):
d = b''
while len(d) < size:
block = self.dev.read(size - len(d))
if not block:
raise UartTimeout("Expected %d bytes, got %d bytes"%(size,len(d)))
d += block
return d
def cmd(self, cmd, payload=b""):
if len(payload) > self.CMD_LEN:
raise ValueError("Incorrect payload size %d"%len(payload))
payload = payload.ljust(self.CMD_LEN, b"\x00")
command = struct.pack("<I", cmd) + payload
command += struct.pack("<I", self.checksum(command))
if self.debug:
print("<<", hexdump(command))
self.dev.write(command)
def unkhandler(self, s):
if not self.tty_enable:
return
for c in s:
if not self.pted:
sys.stdout.write("TTY> ")
self.pted = True
if c == 10:
self.pted = False
sys.stdout.write(chr(c))
sys.stdout.flush()
def ttymode(self, dev=None):
if dev is None:
dev = self.dev
tout = dev.timeout
self.tty_enable = True
dev.timeout = None
term = Miniterm(dev, eol='cr')
term.exit_character = chr(0x1d) # GS/CTRL+]
term.menu_character = chr(0x14) # Menu: CTRL+T
term.raw = True
term.set_rx_encoding('UTF-8')
term.set_tx_encoding('UTF-8')
print('--- TTY mode | Quit: CTRL+] | Menu: CTRL+T ---')
term.start()
try:
term.join(True)
except KeyboardInterrupt:
pass
print('--- Exit TTY mode ---')
term.join()
term.close()
dev.timeout = tout
self.tty_enable = False
def reply(self, cmd):
reply = b''
while True:
if not reply or reply[-1] != 255:
reply = b''
reply += self.readfull(1)
if reply != b"\xff":
self.unkhandler(reply)
continue
else:
reply = b'\xff'
reply += self.readfull(1)
if reply != b"\xff\x55":
self.unkhandler(reply)
continue
reply += self.readfull(1)
if reply != b"\xff\x55\xaa":
self.unkhandler(reply)
continue
reply += self.readfull(self.REPLY_LEN - 3)
if self.debug:
print(">>", hexdump(reply))
cmdin, status, data, checksum = struct.unpack("<Ii24sI", reply)
ccsum = self.checksum(reply[:-4])
if checksum != ccsum:
print("Reply checksum error: Expected 0x%08x, got 0x%08x"%(checksum, ccsum))
raise UartChecksumError()
if cmdin != cmd:
if cmdin == self.REQ_BOOT and status == self.ST_OK:
self.handle_boot(data)
continue
raise UartCMDError("Reply command mismatch: Expected 0x%08x, got 0x%08x"%(cmd, cmdin))
if status != self.ST_OK:
if status == self.ST_BADCMD:
raise UartRemoteError("Reply error: Bad Command")
elif status == self.ST_INVAL:
raise UartRemoteError("Reply error: Invalid argument")
elif status == self.ST_XFERERR:
raise UartRemoteError("Reply error: Data transfer failed")
elif status == self.ST_CSUMERR:
raise UartRemoteError("Reply error: Data checksum failed")
else:
raise UartRemoteError("Reply error: Unknown error (%d)"%status)
return data
def handle_boot(self, data):
reason, code, info = struct.unpack("<IIQ", data[:16])
reason = START(reason)
info_type = None
if reason in (START.EXCEPTION, START.EXCEPTION_LOWER):
code = EXC(code)
if (reason, code) in self.handlers:
self.handlers[(reason, code)](reason, code, info)
elif reason != START.BOOT:
print(f"Proxy callback without handler: {reason}, {code}")
def set_handler(self, reason, code, handler):
self.handlers[(reason, code)] = handler
def wait_boot(self):
try:
return self.reply(self.REQ_BOOT)
except:
# Over USB, reboots cause a reconnect
self.dev.close()
print("Waiting for reconnection... ", end="")
sys.stdout.flush()
for i in range(100):
print(".", end="")
sys.stdout.flush()
try:
self.dev.open()
except serial.serialutil.SerialException:
time.sleep(0.1)
else:
break
else:
raise UartTimeout("Reconnection timed out")
print(" Connected")
def nop(self):
self.cmd(self.REQ_NOP)
self.reply(self.REQ_NOP)
def proxyreq(self, req, reboot=False, no_reply=False, pre_reply=None):
self.cmd(self.REQ_PROXY, req)
if pre_reply:
pre_reply()
if no_reply:
return
elif reboot:
return self.wait_boot()
else:
return self.reply(self.REQ_PROXY)
def writemem(self, addr, data, progress=False):
checksum = self.checksum(data)
size = len(data)
req = struct.pack("<QQI", addr, size, checksum)
self.cmd(self.REQ_MEMWRITE, req)
if self.debug:
print("<< DATA:")
chexdump(data)
for i in range(0, len(data), 8192):
self.dev.write(data[i:i + 8192])
if progress:
sys.stdout.write(".")
sys.stdout.flush()
if progress:
print()
# should automatically report a CRC failure
self.reply(self.REQ_MEMWRITE)
def readmem(self, addr, size):
req = struct.pack("<QQ", addr, size)
self.cmd(self.REQ_MEMREAD, req)
reply = self.reply(self.REQ_MEMREAD)
checksum = struct.unpack("<I",reply[:4])[0]
data = self.readfull(size)
if self.debug:
print(">> DATA:")
chexdump(data)
ccsum = self.checksum(data)
if checksum != ccsum:
raise UartChecksumError("Reply data checksum error: Expected 0x%08x, got 0x%08x"%(checksum, ccsum))
return data
def readstruct(self, addr, stype):
return stype.parse(self.readmem(addr, stype.sizeof()))
class ProxyError(RuntimeError):
pass
class ProxyReplyError(ProxyError):
pass
class ProxyRemoteError(ProxyError):
pass
class ProxyCommandError(ProxyRemoteError):
pass
class AlignmentError(Exception):
pass
class IODEV(IntEnum):
UART = 0
FB = 1
USB0 = 2
USB1 = 3
class USAGE(IntFlag):
CONSOLE = (1 << 0)
UARTPROXY = (1 << 1)
class GUARD(IntFlag):
OFF = 0
SKIP = 1
MARK = 2
RETURN = 3
SILENT = 0x100
class M1N1Proxy:
S_OK = 0
S_BADCMD = -1
P_NOP = 0x000
P_EXIT = 0x001
P_CALL = 0x002
P_GET_BOOTARGS = 0x003
P_GET_BASE = 0x004
P_SET_BAUD = 0x005
P_UDELAY = 0x006
P_SET_EXC_GUARD = 0x007
P_GET_EXC_COUNT = 0x008
P_EL0_CALL = 0x009
P_EL1_CALL = 0x00a
P_VECTOR = 0x00b
P_WRITE64 = 0x100
P_WRITE32 = 0x101
P_WRITE16 = 0x102
P_WRITE8 = 0x103
P_READ64 = 0x104
P_READ32 = 0x105
P_READ16 = 0x106
P_READ8 = 0x107
P_SET64 = 0x108
P_SET32 = 0x109
P_SET16 = 0x10a
P_SET8 = 0x10b
P_CLEAR64 = 0x10c
P_CLEAR32 = 0x10d
P_CLEAR16 = 0x10e
P_CLEAR8 = 0x10f
P_MASK64 = 0x110
P_MASK32 = 0x111
P_MASK16 = 0x112
P_MASK8 = 0x113
P_WRITEREAD64 = 0x114
P_WRITEREAD32 = 0x115
P_WRITEREAD16 = 0x116
P_WRITEREAD8 = 0x117
P_MEMCPY64 = 0x200
P_MEMCPY32 = 0x201
P_MEMCPY16 = 0x202
P_MEMCPY8 = 0x203
P_MEMSET64 = 0x204
P_MEMSET32 = 0x205
P_MEMSET16 = 0x206
P_MEMSET8 = 0x207
P_IC_IALLUIS = 0x300
P_IC_IALLU = 0x301
P_IC_IVAU = 0x302
P_DC_IVAC = 0x303
P_DC_ISW = 0x304
P_DC_CSW = 0x305
P_DC_CISW = 0x306
P_DC_ZVA = 0x307
P_DC_CVAC = 0x308
P_DC_CVAU = 0x309
P_DC_CIVAC = 0x30a
P_MMU_SHUTDOWN = 0x30b
P_XZDEC = 0x400
P_GZDEC = 0x401
P_SMP_START_SECONDARIES = 0x500
P_SMP_CALL = 0x501
P_SMP_CALL_SYNC = 0x502
P_HEAPBLOCK_ALLOC = 0x600
P_MALLOC = 0x601
P_MEMALIGN = 0x602
P_FREE = 0x602
P_KBOOT_BOOT = 0x700
P_KBOOT_SET_BOOTARGS = 0x701
P_KBOOT_SET_INITRD = 0x702
P_KBOOT_PREPARE_DT = 0x703
P_PMGR_CLOCK_ENABLE = 0x800
P_PMGR_CLOCK_DISABLE = 0x801
P_PMGR_ADT_CLOCKS_ENABLE = 0x802
P_PMGR_ADT_CLOCKS_DISABLE = 0x803
P_IODEV_SET_USAGE = 0x900
P_IODEV_CAN_READ = 0x901
P_IODEV_CAN_WRITE = 0x902
P_IODEV_READ = 0x903
P_IODEV_WRITE = 0x904
P_IODEV_WHOAMI = 0x905
P_TUNABLES_APPLY_GLOBAL = 0xa00
P_TUNABLES_APPLY_LOCAL = 0xa01
P_DART_INIT = 0xb00
P_DART_SHUTDOWN = 0xb01
P_DART_MAP = 0xb02
P_DART_UNMAP = 0xb03
P_HV_INIT = 0xc00
P_HV_MAP = 0xc01
P_HV_START = 0xc02
P_HV_TRANSLATE = 0xc03
P_HV_PT_WALK = 0xc04
P_HV_MAP_VUART = 0xc05
P_FB_INIT = 0xd00
P_FB_SHUTDOWN = 0xd01
P_FB_BLIT = 0xd02
P_FB_UNBLIT = 0xd03
P_FB_FILL = 0xd04
P_FB_CLEAR = 0xd05
P_FB_DISPLAY_LOGO = 0xd06
P_FB_RESTORE_LOGO = 0xd07
def __init__(self, iface, debug=False):
self.debug = debug
self.iface = iface
self.heap = None
def _request(self, opcode, *args, reboot=False, signed=False, no_reply=False, pre_reply=None):
if len(args) > 6:
raise ValueError("Too many arguments")
args = list(args) + [0] * (6 - len(args))
req = struct.pack("<7Q", opcode, *args)
if self.debug:
print("<<<< %08x: %08x %08x %08x %08x %08x %08x"%tuple([opcode] + args))
reply = self.iface.proxyreq(req, reboot=reboot, no_reply=no_reply, pre_reply=None)
if no_reply or reboot and reply is None:
return
ret_fmt = "q" if signed else "Q"
rop, status, retval = struct.unpack("<Qq" + ret_fmt, reply)
if self.debug:
print(">>>> %08x: %d %08x"%(rop, status, retval))
if reboot:
return
if rop != opcode:
raise ProxyReplyError("Reply opcode mismatch: Expected 0x%08x, got 0x%08x"%(opcode,rop))
if status != self.S_OK:
if status == self.S_BADCMD:
raise ProxyCommandError("Reply error: Bad Command")
else:
raise ProxyRemoteError("Reply error: Unknown error (%d)"%status)
return retval
def request(self, opcode, *args, **kwargs):
free = []
args = list(args)
args2 = []
for i, arg in enumerate(args):
if isinstance(arg, str):
arg = arg.encode("utf-8") + b"\0"
if isinstance(arg, bytes) and self.heap:
p = self.heap.malloc(len(arg))
free.append(p)
self.iface.writemem(p, arg)
if (i < (len(args) - 1)) and args[i + 1] is None:
args[i + 1] = len(arg)
arg = p
args2.append(arg)
try:
return self._request(opcode, *args2, **kwargs)
finally:
for i in free:
self.heap.free(i)
def nop(self):
self.request(self.P_NOP)
def exit(self, retval=0):
self.request(self.P_EXIT, retval)
def call(self, addr, *args, reboot=False):
if len(args) > 4:
raise ValueError("Too many arguments")
return self.request(self.P_CALL, addr, *args, reboot=reboot)
def reboot(self, addr, *args, el1=False):
if len(args) > 4:
raise ValueError("Too many arguments")
if el1:
self.request(self.P_EL1_CALL, addr, *args, no_reply=True)
else:
try:
self.request(self.P_VECTOR, addr, *args)
self.iface.wait_boot()
except ProxyCommandError: # old m1n1 does not support P_VECTOR
try:
self.mmu_shutdown()
except ProxyCommandError: # older m1n1 does not support MMU
pass
self.request(self.P_CALL, addr, *args, reboot=True)
def get_bootargs(self):
return self.request(self.P_GET_BOOTARGS)
def get_base(self):
return self.request(self.P_GET_BASE)
def set_baud(self, baudrate):
self.iface.tty_enable = False
def change():
self.iface.dev.baudrate = baudrate
try:
self.request(self.P_SET_BAUD, baudrate, 16, 0x005aa5f0, pre_reply=change)
finally:
self.iface.tty_enable = True
def udelay(self, usec):
self.request(self.P_UDELAY, usec)
def set_exc_guard(self, mode):
self.request(self.P_SET_EXC_GUARD, mode)
def get_exc_count(self):
return self.request(self.P_GET_EXC_COUNT)
def el0_call(self, addr, *args):
if len(args) > 4:
raise ValueError("Too many arguments")
return self.request(self.P_EL0_CALL, addr, *args)
def el1_call(self, addr, *args):
if len(args) > 4:
raise ValueError("Too many arguments")
return self.request(self.P_EL1_CALL, addr, *args)
def write64(self, addr, data):
if addr & 7:
raise AlignmentError()
self.request(self.P_WRITE64, addr, data)
def write32(self, addr, data):
if addr & 3:
raise AlignmentError()
self.request(self.P_WRITE32, addr, data)
def write16(self, addr, data):
if addr & 1:
raise AlignmentError()
self.request(self.P_WRITE16, addr, data)
def write8(self, addr, data):
self.request(self.P_WRITE8, addr, data)
def read64(self, addr):
if addr & 7:
raise AlignmentError()
return self.request(self.P_READ64, addr)
def read32(self, addr):
if addr & 3:
raise AlignmentError()
return self.request(self.P_READ32, addr)
def read16(self, addr):
if addr & 1:
raise AlignmentError()
return self.request(self.P_READ16, addr)
def read8(self, addr):
return self.request(self.P_READ8, addr)
def set64(self, addr, data):
if addr & 7:
raise AlignmentError()
self.request(self.P_SET64, addr, data)
def set32(self, addr, data):
if addr & 3:
raise AlignmentError()
self.request(self.P_SET32, addr, data)
def set16(self, addr, data):
if addr & 1:
raise AlignmentError()
self.request(self.P_SET16, addr, data)
def set8(self, addr, data):
self.request(self.P_SET8, addr, data)
def clear64(self, addr, data):
if addr & 7:
raise AlignmentError()
self.request(self.P_CLEAR64, addr, data)
def clear32(self, addr, data):
if addr & 3:
raise AlignmentError()
self.request(self.P_CLEAR32, addr, data)
def clear16(self, addr, data):
if addr & 1:
raise AlignmentError()
self.request(self.P_CLEAR16, addr, data)
def clear8(self, addr, data):
self.request(self.P_CLEAR8, addr, data)
def mask64(self, addr, clear, set):
if addr & 7:
raise AlignmentError()
self.request(self.P_MASK64, addr, clear, set)
def mask32(self, addr, clear, set):
if addr & 3:
raise AlignmentError()
self.request(self.P_MASK32, addr, clear, set)
def mask16(self, addr, clear, set):
if addr & 1:
raise AlignmentError()
self.request(self.P_MASK16, addr, clear, set)
def mask8(self, addr, clear, set):
self.request(self.P_MASK8, addr, clear, set)
def writeread64(self, addr, data):
return self.request(self.P_WRITEREAD64, addr, data)
def writeread32(self, addr, data):
return self.request(self.P_WRITEREAD32, addr, data)
def writeread16(self, addr, data):
return self.request(self.P_WRITEREAD16, addr, data)
def writeread8(self, addr, data):
return self.request(self.P_WRITEREAD8, addr, data)
def memcpy64(self, dst, src, size):
if src & 7 or dst & 7:
raise AlignmentError()
self.request(self.P_MEMCPY64, dst, src, size)
def memcpy32(self, dst, src, size):
if src & 3 or dst & 3:
raise AlignmentError()
self.request(self.P_MEMCPY32, dst, src, size)
def memcpy16(self, dst, src, size):
if src & 1 or dst & 1:
raise AlignmentError()
self.request(self.P_MEMCPY16, dst, src, size)
def memcpy8(self, dst, src, size):
self.request(self.P_MEMCPY8, dst, src, size)
def memset64(self, dst, src, size):
if dst & 7:
raise AlignmentError()
self.request(self.P_MEMSET64, dst, src, size)
def memset32(self, dst, src, size):
if dst & 3:
raise AlignmentError()
self.request(self.P_MEMSET32, dst, src, size)
def memset16(self, dst, src, size):
if dst & 1:
raise AlignmentError()
self.request(self.P_MEMSET16, dst, src, size)
def memset8(self, dst, src, size):
self.request(self.P_MEMSET8, dst, src, size)
def ic_ialluis(self):
self.request(self.P_IC_IALLUIS)
def ic_iallu(self):
self.request(self.P_IC_IALLU)
def ic_ivau(self, addr, size):
self.request(self.P_IC_IVAU, addr, size)
def ic_ivac(self, addr, size):
self.request(self.P_IC_IVAC, addr, size)
def dc_isw(self, sw):
self.request(self.P_DC_ISW, sw)
def dc_csw(self, sw):
self.request(self.P_DC_CSW, sw)
def dc_cisw(self, sw):
self.request(self.P_DC_CISW, sw)
def dc_zva(self, addr, size):
self.request(self.P_DC_ZVA, addr, size)
def dc_cvac(self, addr, size):
self.request(self.P_DC_CVAC, addr, size)
def dc_cvau(self, addr, size):
self.request(self.P_DC_CVAU, addr, size)
def dc_civac(self, addr, size):
self.request(self.P_DC_CIVAC, addr, size)
def mmu_shutdown(self):
self.request(self.P_MMU_SHUTDOWN)
def xzdec(self, inbuf, insize, outbuf=0, outsize=0):
return self.request(self.P_XZDEC, inbuf, insize, outbuf,
outsize, signed=True)
def gzdec(self, inbuf, insize, outbuf, outsize):
return self.request(self.P_GZDEC, inbuf, insize, outbuf,
outsize, signed=True)
def smp_start_secondaries(self):
self.request(self.P_SMP_START_SECONDARIES)
def smp_call(self, cpu, addr, *args):
if len(args) > 4:
raise ValueError("Too many arguments")
self.request(self.P_SMP_CALL, cpu, addr, *args)
def smp_call_sync(self, cpu, addr, *args):
if len(args) > 4:
raise ValueError("Too many arguments")
return self.request(self.P_SMP_CALL_SYNC, cpu, addr, *args)
def heapblock_alloc(self, size):
return self.request(self.P_HEAPBLOCK_ALLOC, size)
def malloc(self, size):
return self.request(self.P_MALLOC, size)
def memalign(self, align, size):
return self.request(self.P_MEMALIGN, align, size)
def free(self, ptr):
self.request(self.P_FREE, ptr)
def kboot_boot(self, kernel):
self.request(self.P_KBOOT_BOOT, kernel)
def kboot_set_bootargs(self, bootargs):
self.request(self.P_KBOOT_SET_BOOTARGS, bootargs)
def kboot_set_initrd(self, base, size):
self.request(self.P_KBOOT_SET_INITRD, base, size)
def kboot_prepare_dt(self, dt_addr):
return self.request(self.P_KBOOT_PREPARE_DT, dt_addr)
def pmgr_clock_enable(self, clkid):
return self.request(self.P_PMGR_CLOCK_ENABLE, clkid)
def pmgr_clock_disable(self, clkid):
return self.request(self.P_PMGR_CLOCK_DISABLE, clkid)
def pmgr_adt_clocks_enable(self, path):
return self.request(self.P_PMGR_ADT_CLOCKS_ENABLE, path)
def pmgr_adt_clocks_disable(self, path):
return self.request(self.P_PMGR_ADT_CLOCKS_DISABLE, path)
def iodev_set_usage(self, iodev, usage):
return self.request(self.P_IODEV_SET_USAGE, iodev, usage)
def iodev_can_read(self, iodev):
return self.request(self.P_IODEV_CAN_READ, iodev)
def iodev_can_write(self, iodev):
return self.request(self.P_IODEV_CAN_WRITE, iodev)
def iodev_read(self, iodev, buf, size=None):
return self.request(self.P_IODEV_READ, iodev, buf, size)
def iodev_write(self, iodev, buf, size=None):
return self.request(self.P_IODEV_WRITE, iodev, buf, size)
def iodev_whoami(self):
return IODEV(self.request(self.P_IODEV_WHOAMI))
def tunables_apply_global(self, path, prop):
return self.request(self.P_TUNABLES_APPLY_GLOBAL, path, prop)
def tunables_apply_local(self, path, prop, reg_offset):
return self.request(self.P_TUNABLES_APPLY_LOCAL, path, prop, reg_offset)
def tunables_apply_local_addr(self, path, prop, base):
return self.request(self.P_TUNABLES_APPLY_LOCAL, path, prop, base)
def dart_init(self, base, sid):
return self.request(self.P_DART_INIT, base, sid)
def dart_shutdown(self, dart):
return self.request(self.P_DART_SHUTDOWN, dart)
def dart_map(self, dart, iova, bfr, len):
return self.request(self.P_DART_MAP, dart, iova, bfr, len)
def dart_unmap(self, dart, iova, len):
return self.request(self.P_DART_UNMAP, dart, iova, len)
def hv_init(self):
return self.request(self.P_HV_INIT)
def hv_map(self, from_, to, size, incr):
return self.request(self.P_HV_MAP, from_, to, size, incr)
def hv_start(self, entry, *args):
return self.request(self.P_HV_START, entry, *args)
def hv_translate(self, addr, s1, w):
return self.request(self.P_HV_TRANSLATE, addr, s1, w)
def hv_pt_walk(self, addr):
return self.request(self.P_HV_PT_WALK, addr)
def hv_map_vuart(self, base):
return self.request(self.P_HV_MAP_VUART, base)
def fb_init(self):
return self.request(self.P_FB_INIT)
def fb_shutdown(self):
return self.request(self.P_FB_SHUTDOWN)
def fb_blit(self, x, y, w, h, ptr, stride):
return self.request(self.P_FB_BLIP, x, y, w, h, ptr, stride)
def fb_unblit(self, x, y, w, h, ptr, stride):
return self.request(self.P_FB_UNBLIP, x, y, w, h, ptr, stride)
def fb_fill(self, color):
return self.request(self.P_FB_FILL, x, y, w, h, color)
def fb_clear(self, color):
return self.request(self.P_FB_CLEAR, color)
def fb_display_logo(self):
return self.request(self.P_FB_DISPLAY_LOGO)
def fb_restore_logo(self):
return self.request(self.P_FB_RESTORE_LOGO)
if __name__ == "__main__":
import serial
uartdev = os.environ.get("M1N1DEVICE", "/dev/ttyUSB0")
usbuart = serial.Serial(uartdev, 115200)
uartif = UartInterface(usbuart, debug=True)
print("Sending NOP...", end=' ')
uartif.nop()
print("OK")
proxy = M1N1Proxy(uartif, debug=True)
print("Sending Proxy NOP...", end=' ')
proxy.nop()
print("OK")
print("Boot args: 0x%x" % proxy.get_bootargs())