mirror of
https://github.com/AsahiLinux/m1n1
synced 2024-12-21 03:03:05 +00:00
221 lines
7.8 KiB
Python
221 lines
7.8 KiB
Python
# SPDX-License-Identifier: MIT
|
|
|
|
import struct
|
|
from construct import *
|
|
|
|
from m1n1.hv import TraceMode
|
|
from m1n1.proxyutils import RegMonitor
|
|
from m1n1.utils import *
|
|
|
|
from m1n1.trace import ADTDevTracer
|
|
from m1n1.trace.asc import ASCTracer, ASCRegs, EP, EPState, msg, msg_log, DIR
|
|
from m1n1.trace.dart import DARTTracer
|
|
from m1n1.trace.gpio import GPIOTracer
|
|
from m1n1.trace.spi import SPITracer
|
|
|
|
DARTTracer = DARTTracer._reloadcls()
|
|
ASCTracer = ASCTracer._reloadcls()
|
|
SPITracer = SPITracer._reloadcls()
|
|
|
|
# SPI HID transport tracer for 2021 macbook models
|
|
|
|
kbd_node = None
|
|
for node in hv.adt.walk_tree():
|
|
try:
|
|
if node.compatible[0] == "spi-1,spimc":
|
|
for c in node:
|
|
try:
|
|
if c.compatible[0] == "hid-transport,k1":
|
|
kbd_node = c
|
|
break
|
|
except AttributeError:
|
|
continue
|
|
except AttributeError:
|
|
continue
|
|
if kbd_node is not None:
|
|
break
|
|
|
|
|
|
class Z2Tracer(SPITracer):
|
|
def start(self):
|
|
super().start()
|
|
self.txbuffer = []
|
|
self.rxbuffer = []
|
|
self.want_bytes = 0
|
|
self.state = Z2Tracer.preboot
|
|
def w_TXDATA(self, data):
|
|
self.txbuffer.append(data.value)
|
|
self.check_msg_finished()
|
|
def r_RXDATA(self, data):
|
|
self.rxbuffer.append(data.value)
|
|
self.check_msg_finished()
|
|
def check_msg_finished(self):
|
|
if min(len(self.txbuffer), len(self.rxbuffer)) < self.want_bytes:
|
|
return
|
|
self.state(self)
|
|
def bad_state(self):
|
|
pass
|
|
def error(self):
|
|
self.log(f"RXBUF {' '.join(hex(x) for x in self.rxbuffer)}")
|
|
self.log(f"TXBUF {' '.join(hex(x) for x in self.txbuffer)}")
|
|
self.log(f"state: {self.state}")
|
|
self.log("Tracer desynchronized, shutting down")
|
|
self.state = Z2Tracer.bad_state
|
|
def consume_bytes(self, n):
|
|
self.txbuffer = self.txbuffer[n:]
|
|
self.rxbuffer = self.rxbuffer[n:]
|
|
def preboot(self):
|
|
if self.txbuffer[0] == 0:
|
|
self.want_bytes = 4
|
|
self.state = Z2Tracer.init_zeros
|
|
elif self.txbuffer[0] == 0x1e:
|
|
self.want_bytes = 16
|
|
self.state = Z2Tracer.processing_init_data
|
|
else:
|
|
self.error()
|
|
def init_zeros(self):
|
|
self.log("sent 4 zeroes")
|
|
self.consume_bytes(4)
|
|
self.state = Z2Tracer.preboot
|
|
def processing_init_data(self):
|
|
self.log("Sent init data")
|
|
self.want_bytes = 2
|
|
self.consume_bytes(16)
|
|
self.state = Z2Tracer.main_hbpp
|
|
def main_hbpp(self):
|
|
if self.txbuffer[0] == 0x1a and self.txbuffer[1] == 0xa1:
|
|
self.log("Sent int ack")
|
|
self.consume_bytes(2)
|
|
elif self.txbuffer[0] == 0x18 and self.txbuffer[1] == 0xe1:
|
|
self.log("Sent nop")
|
|
self.consume_bytes(2)
|
|
elif self.txbuffer[0] == 0x1f and self.txbuffer[1] == 0x01:
|
|
self.log("Sent request cal")
|
|
self.consume_bytes(2)
|
|
elif self.txbuffer[0] == 0x30 and self.txbuffer[1] == 0x01:
|
|
self.state = Z2Tracer.send_blob_cmd
|
|
self.want_bytes = 10
|
|
elif self.txbuffer[0] == 0x1e and self.txbuffer[1] == 0x33:
|
|
self.state = Z2Tracer.send_rmw_cmd
|
|
self.want_bytes = 16
|
|
elif self.txbuffer[0] == 0xee and self.txbuffer[1] == 0x00:
|
|
self.state = Z2Tracer.main_z2
|
|
self.want_bytes = 16
|
|
else:
|
|
self.error()
|
|
def send_blob_cmd(self):
|
|
length = (self.txbuffer[2] << 8 | self.txbuffer[3]) * 4
|
|
self.consume_bytes(10)
|
|
self.want_bytes = length + 4
|
|
self.log(f"Sending blob of length {length}")
|
|
self.state = Z2Tracer.send_blob_tail
|
|
def send_blob_tail(self):
|
|
self.log("Finished sendind blob")
|
|
self.consume_bytes(self.want_bytes)
|
|
self.want_bytes = 2
|
|
self.state = Z2Tracer.main_hbpp
|
|
def send_rmw_cmd(self):
|
|
self.log('Sent RMW command')
|
|
self.want_bytes = 2
|
|
self.consume_bytes(16)
|
|
self.state = Z2Tracer.main_hbpp
|
|
def main_z2(self):
|
|
if self.txbuffer[0] == 0xee:
|
|
self.log("sent wake cmd")
|
|
self.consume_bytes(16)
|
|
elif self.txbuffer[0] == 0xe2:
|
|
self.log("sent get device info cmd")
|
|
self.consume_bytes(16)
|
|
self.state = Z2Tracer.read_device_info_reply
|
|
elif self.txbuffer[0] == 0xeb:
|
|
length = (self.rxbuffer[1] | (self.rxbuffer[2] << 8)) + 5
|
|
length = (length + 3) & (-4)
|
|
self.consume_bytes(16)
|
|
self.want_bytes = length
|
|
self.state = Z2Tracer.read_interrupt_data
|
|
elif self.txbuffer[0] == 0xe3:
|
|
self.log(f"got report info for {self.txbuffer[1]}, len is {self.rxbuffer[3]}")
|
|
self.consume_bytes(16)
|
|
elif self.txbuffer[0] == 0xe7:
|
|
self.want_bytes = self.txbuffer[3] + 5
|
|
self.consume_bytes(16)
|
|
self.state = Z2Tracer.reading_report_long
|
|
elif self.txbuffer[0] == 0xe6:
|
|
self.consume_bytes(16)
|
|
self.state = Z2Tracer.read_report_reply
|
|
else:
|
|
self.error()
|
|
def reading_report_long(self):
|
|
self.log(f"got report {' '.join(hex(x) for x in self.rxbuffer)}")
|
|
self.consume_bytes(self.want_bytes)
|
|
self.want_bytes = 16
|
|
self.state = Z2Tracer.main_z2
|
|
def read_interrupt_data(self):
|
|
data = self.rxbuffer[5:]
|
|
tstamp2 = data[4] | (data[5] << 8) | (data[6] << 16)
|
|
tx = [f"TS1 {hex(data[1])} TS2 {tstamp2} UNK1: {mxformat(data[7:16])} UNK2: {mxformat(data[17:24])}"]
|
|
if len(data) >= 16:
|
|
ntouch = data[16]
|
|
for i in range(ntouch):
|
|
ptr = 24 + 30 * i
|
|
finger = data[ptr]
|
|
state = data[ptr + 1]
|
|
x = data[ptr + 4] | (data[ptr + 5] << 8)
|
|
y = data[ptr + 6] | (data[ptr + 7] << 8)
|
|
wj = data[ptr + 12] | (data[ptr + 13] << 8)
|
|
wn = data[ptr + 14] | (data[ptr + 15] << 8)
|
|
dg = data[ptr + 16] | (data[ptr + 17] << 8)
|
|
prs = data[ptr + 18] | (data[ptr + 19] << 8)
|
|
tx.append(f"F: {hex(finger)} S: {hex(state)} X: {x} Y: {y} MAJ: {wj} MIN: {wn} ANG: {dg} PRS: {prs} UNK1: {mxformat(data[ptr + 2:ptr+4])} UNK2: {mxformat(data[ptr + 8:ptr+12])} UNK3: {mxformat(data[ptr + 20:ptr+30])}")
|
|
self.log(';'.join(tx))
|
|
else:
|
|
self.log(f"??? {mxformat(data)}")
|
|
self.consume_bytes(self.want_bytes)
|
|
self.want_bytes = 16
|
|
self.state = Z2Tracer.main_z2
|
|
def read_device_info_reply(self):
|
|
self.log(f"got device info {' '.join(hex(x) for x in self.rxbuffer[:16])}")
|
|
self.consume_bytes(16)
|
|
self.state = Z2Tracer.main_z2
|
|
def read_report_reply(self):
|
|
self.log(f"got report {' '.join(hex(x) for x in self.rxbuffer[:16])}")
|
|
self.consume_bytes(16)
|
|
self.state = Z2Tracer.main_z2
|
|
|
|
def mxformat(ls):
|
|
return ''.join(xformat(x) for x in ls)
|
|
def xformat(x):
|
|
x = hex(x)[2:]
|
|
if len(x) == 1:
|
|
x = '0' + x
|
|
return x
|
|
|
|
|
|
|
|
# trace interrupts
|
|
aic_phandle = getattr(hv.adt["/arm-io/aic"], "AAPL,phandle")
|
|
spi_node = kbd_node._parent
|
|
|
|
#if getattr(spi_node, "interrupt-parent") == aic_phandle:
|
|
# for irq in getattr(spi_node, "interrupts"):
|
|
# hv.trace_irq(node.name, irq, 1, hv.IRQTRACE_IRQ)
|
|
#for irq in hv.adt['/arm-io/gpio'].interrupts:
|
|
# hv.trace_irq('/arm-io/gpio', irq, 1, hv.IRQTRACE_IRQ)
|
|
|
|
spi_tracer = Z2Tracer(hv, "/arm-io/" + spi_node.name)
|
|
spi_tracer.start()
|
|
|
|
spi_pins_nub = {
|
|
0x0: "clock32khz",
|
|
}
|
|
|
|
#gpio_tracer_nub = GPIOTracer(hv, "/arm-io/nub-gpio", spi_pins_nub, verbose=0)
|
|
#gpio_tracer_nub.start()
|
|
|
|
spi_pins = {
|
|
0x6d: "enable_cs",
|
|
0x8b: "reset"
|
|
}
|
|
|
|
#gpio_tracer = GPIOTracer(hv, "/arm-io/gpio", spi_pins, verbose=0)
|
|
#gpio_tracer.start()
|