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serial_dev.pyx
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#cython: language_level=3, boundscheck=False, wraparound=False, cdivision=True, profile=False, c_string_type=bytes
include "globals.pxi"
from time import sleep
from atexit import register
from os import remove
from os.path import exists
import socket, serial as seriallib
IF SET_THREAD_NAMES:
import prctl
cdef class SerialPort:
def __init__(self, Serial serial, uint8_t serialIndex):
self.serial = serial
self.main = self.serial.main
self.serialIndex = serialIndex
if (not self.serialIndex):
self.serialFilename = self.main.serial1Filename
elif (self.serialIndex == 1):
self.serialFilename = self.main.serial2Filename
elif (self.serialIndex == 2):
self.serialFilename = self.main.serial3Filename
elif (self.serialIndex == 3):
self.serialFilename = self.main.serial4Filename
if (not (self.serialIndex & 1)):
self.irq = 4
else:
self.irq = 3
self.sock = self.fp = None
self.dlab = self.isDev = False
self.dataBits = 3
self.stopBits = 0
self.parity = 0
self.divisor = 1 # 12
self.interruptEnableRegister = self.modemControlRegister = self.oldModemStatusRegister = self.scratchRegister = 0
self.lineStatusRegister = 0x60
self.interruptIdentificationFifoControl = 0x2
self.data = bytes()
if (len(self.serialFilename) > 0):
if (self.serialFilename.startswith(b"socket:")):
self.serialFilename = self.serialFilename[7:]
if (exists(self.serialFilename)):
remove(self.serialFilename)
self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
self.sock.bind(self.serialFilename)
self.sock.listen(1)
#self.fp, addr = self.sock.accept()
self.fp = self.sock.accept()[0]
elif (self.serialFilename.startswith(b"serial:")):
self.serialFilename = self.serialFilename[7:]
self.isDev = True
if (exists(self.serialFilename)):
self.fp = seriallib.Serial(port=self.serialFilename.decode())
self.setBits()
#self.main.notice("SerialPort::__init__: \"serial:serialFilename\" does exist. (self.serialFilename: %s)", self.serialFilename.decode())
self.main.notice("SerialPort::__init__: \"serial:serialFilename\" does exist. (self.serialFilename: %s)", self.serialFilename)
else:
#self.main.exitError("SerialPort::__init__: \"serial:serialFilename\" doesn't exist. (self.serialFilename: %s)", self.serialFilename.decode())
self.main.exitError("SerialPort::__init__: \"serial:serialFilename\" doesn't exist. (self.serialFilename: %s)", self.serialFilename)
else:
self.fp = open(self.serialFilename, "w+b")
cdef void reset(self) nogil:
pass
cdef void setFlags(self):
self.lineStatusRegister &= ~0x1
if (not len(self.data)):
self.readData()
if (self.isDev):
self.lineStatusRegister &= ~0x60
if (not self.fp.out_waiting):
if (self.interruptEnableRegister & 0x2):
self.raiseIrq() # write irq
self.interruptIdentificationFifoControl = 0x2
self.lineStatusRegister |= 0x60
if (self.fp.in_waiting):
if (self.interruptEnableRegister & 0x1):
self.raiseIrq() # read irq
self.interruptIdentificationFifoControl = 0x4
self.lineStatusRegister |= 0x1
if (len(self.data) > 0):
self.lineStatusRegister |= 0x1
cdef void setBits(self):
cdef uint8_t tempVal
if (self.isDev):
self.fp.baudrate = 115200//self.divisor
if (self.parity & 1):
tempVal = self.parity >> 1
if (not tempVal):
self.fp.parity = seriallib.PARITY_ODD
elif (tempVal == 1):
self.fp.parity = seriallib.PARITY_EVEN
elif (tempVal == 2):
self.fp.parity = seriallib.PARITY_MARK
elif (tempVal == 3):
self.fp.parity = seriallib.PARITY_SPACE
else:
self.fp.parity = seriallib.PARITY_NONE
if (self.stopBits & 1):
if (self.dataBits): # dataBits != FIVEBITS
self.fp.stopbits = seriallib.STOPBITS_TWO
else:
self.fp.stopbits = seriallib.STOPBITS_ONE_POINT_FIVE
else:
self.fp.stopbits = seriallib.STOPBITS_ONE
self.fp.bytesize = 5+self.dataBits
cdef void handleIrqs(self):
IF SET_THREAD_NAMES:
prctl.set_name("SerialPort::handleIrqs")
if (self.fp is None):
return
while (not self.main.quitEmu):
self.setFlags()
sleep(1)
cdef void quitFunc(self):
if (self.sock is not None):
self.sock.close()
if (exists(self.serialFilename)):
remove(self.serialFilename)
elif (self.fp):
self.fp.close()
cdef void raiseIrq(self):
if (self.modemControlRegister & 0x8):
IF COMP_DEBUG:
self.main.notice("SerialPort::raiseIrq: raiseIrq enabled (self.serialIndex %u)", self.serialIndex)
(<Pic>self.main.platform.pic).raiseIrq(self.irq)
else:
IF COMP_DEBUG:
self.main.notice("SerialPort::raiseIrq: raiseIrq disabled (self.serialIndex %u)", self.serialIndex)
cdef void readData(self):
cdef bytes tempData
if (self.fp is not None):
if (not self.modemControlRegister & 0x10):
if (self.sock is not None):
try:
tempData = self.fp.recv(1, socket.MSG_DONTWAIT | socket.MSG_PEEK)
if (len(tempData) > 0):
self.data += self.fp.recv(1)
except BlockingIOError:
pass
elif (not self.isDev or self.fp.in_waiting > 0):
self.data += self.fp.read(1)
#usleep(100000)
#usleep(round(1.0e6/(115200.0/self.divisor)))
if ((self.interruptEnableRegister & 0x1) and len(self.data) > 0):
self.raiseIrq() # read irq
self.interruptIdentificationFifoControl = 0x4
cdef void writeData(self, bytes data):
cdef uint32_t retlen
if (self.fp is not None):
if (len(data) > 0):
self.lineStatusRegister &= ~0x60
IF COMP_DEBUG:
#self.main.notice("SerialPort%u::writeData: write string: %s", self.serialIndex, repr(data.decode()))
self.main.notice("SerialPort%u::writeData: write string", self.serialIndex)
if (self.modemControlRegister & 0x10):
self.data += data
retlen = len(self.data)
else:
if (self.sock is not None):
retlen = self.fp.send(data)
else:
retlen = self.fp.write(data)
self.fp.flush()
#usleep(100000)
#usleep(round(1.0e6/(115200.0/self.divisor)))
if (self.isDev):
if (self.fp.out_waiting):
self.lineStatusRegister |= 0x60
elif (retlen <= len(data)):
self.lineStatusRegister |= 0x60
#if (1):
#self.lineStatusRegister |= 0x60
if (self.interruptEnableRegister & 0x2 and (not self.isDev or not self.fp.out_waiting)):
self.raiseIrq() # write irq
self.interruptIdentificationFifoControl = 0x2
cdef uint32_t inPort(self, uint16_t ioPortAddr, uint8_t dataSize):
cdef uint8_t ret = BITMASK_BYTE
if (self.fp is None):
#IF COMP_DEBUG:
IF 0:
self.main.notice("SerialPort::inPort_4: fp is None")
return ret
elif (dataSize == OP_SIZE_BYTE):
if (ioPortAddr == 0):
if (self.dlab): # low byte divisor
IF COMP_DEBUG:
self.main.notice("SerialPort::inPort_5: get divisor low")
return (self.divisor & BITMASK_BYTE)
else:
IF COMP_DEBUG:
self.main.notice("SerialPort::inPort_8: read character")
#with gil:
IF 1:
if (not len(self.data)):
self.readData()
if (len(self.data) > 0):
ret = self.data[0]
IF COMP_DEBUG:
#self.main.notice("SerialPort%u::inPort_3: read character: %s, 0x%02x", self.serialIndex, repr(chr(ret)), ret)
self.main.notice("SerialPort%u::inPort_3: read character, 0x%02x", self.serialIndex, ret)
if (len(self.data) > 1):
self.data = self.data[1:]
else:
self.data = bytes()
#else:
# ret = 0
elif (ioPortAddr == 1):
if (self.dlab): # high byte divisor
IF COMP_DEBUG:
self.main.notice("SerialPort::inPort_6: get divisor high")
return (self.divisor >> 8)
else:
IF COMP_DEBUG:
self.main.notice("SerialPort::inPort_7: get interruptEnableRegister")
return self.interruptEnableRegister
elif (ioPortAddr == 2):
(<Pic>self.main.platform.pic).lowerIrq(self.irq)
if (not self.interruptIdentificationFifoControl):
self.interruptIdentificationFifoControl = 0x1
return self.interruptIdentificationFifoControl
elif (ioPortAddr == 3):
return ((self.dlab << 7) | (self.parity << 3) | (self.stopBits << 2) | (self.dataBits))
elif (ioPortAddr == 4):
return self.modemControlRegister
elif (ioPortAddr == 5):
#with gil:
IF 1:
self.setFlags()
return self.lineStatusRegister
elif (ioPortAddr == 6):
ret = 0
if (self.isDev):
#with gil:
IF 1:
ret |= (self.fp.cd != 0) << 7
ret |= (self.fp.ri != 0) << 6
ret |= (self.fp.dsr != 0) << 5
ret |= (self.fp.cts != 0) << 4
if (not ((self.oldModemStatusRegister >> 7) & 1) and ((ret >> 7) & 1)):
ret |= 1 << 3
if (((self.oldModemStatusRegister >> 6) & 1) and not ((ret >> 6) & 1)): # RI is reversed
ret |= 1 << 2
if (not ((self.oldModemStatusRegister >> 5) & 1) and ((ret >> 5) & 1)):
ret |= 1 << 1
if (not ((self.oldModemStatusRegister >> 4) & 1) and ((ret >> 4) & 1)):
ret |= 1
self.oldModemStatusRegister = ret
return ret
elif (ioPortAddr == 7):
return self.scratchRegister
else:
self.main.exitError("SerialPort::inPort_1: port 0x%02x with dataSize %u not supported.", ioPortAddr, dataSize)
else:
self.main.exitError("SerialPort::inPort_2: port 0x%02x with dataSize %u not supported.", ioPortAddr, dataSize)
return ret
cdef void outPort(self, uint16_t ioPortAddr, uint32_t data, uint8_t dataSize):
if (self.fp is None):
#IF COMP_DEBUG:
IF 0:
self.main.notice("SerialPort::outPort_4: fp is None")
return
elif (dataSize == OP_SIZE_BYTE):
if (ioPortAddr == 0):
if (self.dlab): # low byte divisor
IF COMP_DEBUG:
self.main.notice("SerialPort::outPort_3: set divisor low")
self.divisor &= 0xff00
self.divisor |= data
#with gil:
IF 1:
self.setBits()
else:
IF COMP_DEBUG:
#self.main.notice("SerialPort%u::outPort: write character: %s, 0x%02x", self.serialIndex, repr(chr(data)), data)
self.main.notice("SerialPort%u::outPort: write character, 0x%02x", self.serialIndex, data)
#with gil:
IF 1:
self.writeData(bytes([data]))
elif (ioPortAddr == 1):
if (self.dlab): # high byte divisor
IF COMP_DEBUG:
self.main.notice("SerialPort::outPort_4: set divisor high")
self.divisor &= 0x00ff
self.divisor |= (data<<8)
#with gil:
IF 1:
self.setBits()
else:
IF COMP_DEBUG:
self.main.notice("SerialPort::outPort_5: set interruptEnableRegister")
self.interruptEnableRegister = data
elif (ioPortAddr == 2):
if (data & 1):
if (data & 2):
#with gil:
IF 1:
self.data = bytes()
data &= ~2
data &= ~4
self.interruptIdentificationFifoControl = data
elif (ioPortAddr == 3):
self.dataBits = (data & 3)
self.stopBits = ((data >> 2) & 1)
self.parity = ((data >> 3) & 7)
self.dlab = ((data >> 7) & 1)
#with gil:
IF 1:
self.setBits()
if (self.isDev):
self.fp.break_condition = ((data >> 6) & 1)
elif (ioPortAddr == 4):
self.modemControlRegister = data
if (self.isDev):
#with gil:
IF 1:
self.fp.rts = ((self.modemControlRegister >> 1) & 1)
self.fp.dtr = (self.modemControlRegister & 1)
elif (ioPortAddr == 7):
self.scratchRegister = data
else:
self.main.exitError("SerialPort::outPort_1: port 0x%02x with dataSize %u not supported. (data: 0x%04x)", ioPortAddr, dataSize, data)
else:
self.main.exitError("SerialPort::outPort_2: port 0x%02x with dataSize %u not supported. (data: 0x%04x)", ioPortAddr, dataSize, data)
return
cdef void run(self):
if (self.fp is not None):
self.main.misc.createThread(self.handleIrqs, self)
if (self.sock is not None):
register(self.quitFunc, self)
cdef class Serial:
def __init__(self, Hirnwichse main):
cdef SerialPort port0, port1, port2, port3
self.main = main
port0 = SerialPort(self, 0)
self.ports[0] = <PyObject*>port0
port1 = SerialPort(self, 1)
self.ports[1] = <PyObject*>port1
port2 = SerialPort(self, 2)
self.ports[2] = <PyObject*>port2
port3 = SerialPort(self, 3)
self.ports[3] = <PyObject*>port3
Py_INCREF(port0)
Py_INCREF(port1)
Py_INCREF(port2)
Py_INCREF(port3)
cdef void reset(self) nogil:
if (self.ports[0]):
(<SerialPort>self.ports[0]).reset()
if (self.ports[1]):
(<SerialPort>self.ports[1]).reset()
if (self.ports[2]):
(<SerialPort>self.ports[2]).reset()
if (self.ports[3]):
(<SerialPort>self.ports[3]).reset()
cdef uint32_t inPort(self, uint16_t ioPortAddr, uint8_t dataSize):
cdef uint32_t ret = BITMASK_BYTE
#IF COMP_DEBUG:
IF 0:
self.main.notice("Serial::inPort_1: port 0x%02x dataSize %u.", ioPortAddr, dataSize)
if (dataSize == OP_SIZE_BYTE):
if (ioPortAddr in SERIAL1_PORTS_TUPLE):
#with gil:
IF 1:
ret = (<SerialPort>self.ports[0]).inPort(ioPortAddr-SERIAL1_PORTS_TUPLE[0], dataSize)
elif (ioPortAddr in SERIAL2_PORTS_TUPLE):
#with gil:
IF 1:
ret = (<SerialPort>self.ports[1]).inPort(ioPortAddr-SERIAL2_PORTS_TUPLE[0], dataSize)
elif (ioPortAddr in SERIAL3_PORTS_TUPLE):
#with gil:
IF 1:
ret = (<SerialPort>self.ports[2]).inPort(ioPortAddr-SERIAL3_PORTS_TUPLE[0], dataSize)
elif (ioPortAddr in SERIAL4_PORTS_TUPLE):
#with gil:
IF 1:
ret = (<SerialPort>self.ports[3]).inPort(ioPortAddr-SERIAL4_PORTS_TUPLE[0], dataSize)
else:
self.main.exitError("Serial::inPort_2: port 0x%02x with dataSize %u not supported.", ioPortAddr, dataSize)
return ret
elif (dataSize == OP_SIZE_WORD):
ret = self.inPort(ioPortAddr, OP_SIZE_BYTE)
ret |= self.inPort(ioPortAddr+1, OP_SIZE_BYTE)<<8
else:
self.main.exitError("Serial::inPort_3: port 0x%02x with dataSize %u not supported.", ioPortAddr, dataSize)
return ret
#IF COMP_DEBUG:
IF 0:
self.main.notice("Serial::inPort_4: port 0x%02x data 0x%02x dataSize %u.", ioPortAddr, ret, dataSize)
#if (ioPortAddr == 0x3fe and ret == 0xff):
# self.main.debugEnabledTest = self.main.debugEnabled = True
return ret
cdef void outPort(self, uint16_t ioPortAddr, uint32_t data, uint8_t dataSize):
#IF COMP_DEBUG:
IF 0:
self.main.notice("Serial::outPort_1: port 0x%02x data 0x%02x dataSize %u.", ioPortAddr, data, dataSize)
if (dataSize == OP_SIZE_BYTE):
if (ioPortAddr in SERIAL1_PORTS_TUPLE):
#with gil:
IF 1:
(<SerialPort>self.ports[0]).outPort(ioPortAddr-SERIAL1_PORTS_TUPLE[0], data, dataSize)
elif (ioPortAddr in SERIAL2_PORTS_TUPLE):
#with gil:
IF 1:
(<SerialPort>self.ports[1]).outPort(ioPortAddr-SERIAL2_PORTS_TUPLE[0], data, dataSize)
elif (ioPortAddr in SERIAL3_PORTS_TUPLE):
#with gil:
IF 1:
(<SerialPort>self.ports[2]).outPort(ioPortAddr-SERIAL3_PORTS_TUPLE[0], data, dataSize)
elif (ioPortAddr in SERIAL4_PORTS_TUPLE):
#with gil:
IF 1:
(<SerialPort>self.ports[3]).outPort(ioPortAddr-SERIAL4_PORTS_TUPLE[0], data, dataSize)
else:
self.main.exitError("Serial::outPort_2: port 0x%02x with dataSize %u not supported. (data: 0x%04x)", ioPortAddr, dataSize, data)
elif (dataSize == OP_SIZE_WORD):
self.outPort(ioPortAddr, <uint8_t>data, OP_SIZE_BYTE)
self.outPort(ioPortAddr+1, <uint8_t>(data>>8), OP_SIZE_BYTE)
else:
self.main.exitError("Serial::outPort_3: port 0x%02x with dataSize %u not supported. (data: 0x%04x)", ioPortAddr, dataSize, data)
return
cdef void run(self):
self.reset()
if (self.ports[0]):
(<SerialPort>self.ports[0]).run()
if (self.ports[1]):
(<SerialPort>self.ports[1]).run()
if (self.ports[2]):
(<SerialPort>self.ports[2]).run()
if (self.ports[3]):
(<SerialPort>self.ports[3]).run()