mirror of https://github.com/ARMmbed/mbed-os.git
226 lines
6.9 KiB
Python
226 lines
6.9 KiB
Python
# mbedRPC.py - mbed RPC interface for Python
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#
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##Copyright (c) 2010 ARM Ltd
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##
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##Permission is hereby granted, free of charge, to any person obtaining a copy
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##of this software and associated documentation files (the "Software"), to deal
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##in the Software without restriction, including without limitation the rights
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##to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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##copies of the Software, and to permit persons to whom the Software is
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##furnished to do so, subject to the following conditions:
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##
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##The above copyright notice and this permission notice shall be included in
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##all copies or substantial portions of the Software.
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##
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##THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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##IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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##FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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##AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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##LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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##OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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##THE SOFTWARE.
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#
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# Example:
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# >from mbedRPC import*
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# >mbed = SerialRPC("COM5",9600)
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# >myled = DigitalOut(mbed,"myled") <--- Where the text in quotations matches your RPC pin definition's second parameter, in this case it could be RpcDigitalOut myled(LED1,"myled");
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# >myled.write(1)
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# >
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import serial, urllib2, time
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# mbed super class
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class mbed:
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def __init__(self):
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print("This will work as a demo but no transport mechanism has been selected")
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def rpc(self, name, method, args):
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print("Superclass method not overridden")
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# Transport mechanisms, derived from mbed
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class SerialRPC(mbed):
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def __init__(self, port, baud):
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self.ser = serial.Serial(port)
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self.ser.setBaudrate(baud)
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def rpc(self, name, method, args):
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# creates the command to be sent serially - /name/method arg1 arg2 arg3 ... argN
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str = "/" + name + "/" + method + " " + " ".join(args) + "\n"
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# prints the command being executed
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print str
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# writes the command to serial
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self.ser.write(str)
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# strips trailing characters from the line just written
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ret_val = self.ser.readline().strip()
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return ret_val
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class HTTPRPC(mbed):
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def __init__(self, ip):
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self.host = "http://" + ip
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def rpc(self, name, method, args):
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response = urllib2.urlopen(self.host + "/rpc/" + name + "/" + method + "%20" + "%20".join(args))
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return response.read().strip()
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# generic mbed interface super class
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class mbed_interface():
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# initialize an mbed interface with a transport mechanism and pin name
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def __init__(self, this_mbed, mpin):
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self.mbed = this_mbed
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if isinstance(mpin, str):
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self.name = mpin
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def __del__(self):
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r = self.mbed.rpc(self.name, "delete", [])
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def new(self, class_name, name, pin1, pin2 = "", pin3 = ""):
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args = [arg for arg in [pin1,pin2,pin3,name] if arg != ""]
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r = self.mbed.rpc(class_name, "new", args)
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# generic read
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def read(self):
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r = self.mbed.rpc(self.name, "read", [])
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return int(r)
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# for classes that need write functionality - inherits from the generic reading interface
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class mbed_interface_write(mbed_interface):
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def __init__(self, this_mbed, mpin):
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mbed_interface.__init__(self, this_mbed, mpin)
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# generic write
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def write(self, value):
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r = self.mbed.rpc(self.name, "write", [str(value)])
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# mbed interfaces
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class DigitalOut(mbed_interface_write):
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def __init__(self, this_mbed, mpin):
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mbed_interface_write.__init__(self, this_mbed, mpin)
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class AnalogIn(mbed_interface):
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def __init__(self, this_mbed, mpin):
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mbed_interface.__init__(self, this_mbed, mpin)
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def read_u16(self):
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r = self.mbed.rpc(self.name, "read_u16", [])
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return int(r)
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class AnalogOut(mbed_interface_write):
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def __init__(self, this_mbed, mpin):
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mbed_interface_write.__init__(self, this_mbed, mpin)
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def write_u16(self, value):
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self.mbed.rpc(self.name, "write_u16", [str(value)])
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def read(self):
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r = self.mbed.rpc(self.name, "read", [])
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return float(r)
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class DigitalIn(mbed_interface):
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def __init__(self, this_mbed, mpin):
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mbed_interface.__init__(self, this_mbed, mpin)
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class PwmOut(mbed_interface_write):
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def __init__(self, this_mbed, mpin):
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mbed_interface_write.__init__(self, this_mbed, mpin)
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def read(self):
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r = self.mbed.rpc(self.name, "read", [])
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return r
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def period(self, value):
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self.mbed.rpc(self.name, "period", [str(value)])
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def period_ms(self, value):
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self.mbed.rpc(self.name, "period_ms", [str(value)])
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def period_us(self, value):
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self.mbed.rpc(self.name, "period_us", [str(value)])
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def pulsewidth(self, value):
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self.mbed.rpc(self.name, "pulsewidth", [str(value)])
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def pulsewidth_ms(self, value):
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self.mbed.rpc(self.name, "pulsewidth_ms", [str(value)])
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def pulsewidth_us(self, value):
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self.mbed.rpc(self.name, "pulsewidth_us", [str(value)])
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class RPCFunction(mbed_interface):
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def __init__(self, this_mbed, name):
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mbed_interface.__init__(self, this_mbed, name)
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def run(self, input):
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r = self.mbed.rpc(self.name, "run", [input])
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return r
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class RPCVariable(mbed_interface_write):
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def __init__(self, this_mbed, name):
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mbed_interface_write.__init__(self, this_mbed, name)
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def read(self):
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r = self.mbed.rpc(self.name, "read", [])
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return r
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class Timer(mbed_interface):
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def __init__(self, this_mbed, name):
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mbed_interface.__init__(self, this_mbed, name)
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def start(self):
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r = self.mbed.rpc(self.name, "start", [])
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def stop(self):
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r = self.mbed.rpc(self.name, "stop", [])
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def reset(self):
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r = self.mbed.rpc(self.name, "reset", [])
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def read(self):
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r = self.mbed.rpc(self.name, "read", [])
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return float(re.search('\d+\.*\d*', r).group(0))
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def read_ms(self):
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r = self.mbed.rpc(self.name, "read_ms", [])
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return float(re.search('\d+\.*\d*', r).group(0))
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def read_us(self):
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r = self.mbed.rpc(self.name, "read_us", [])
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return float(re.search('\d+\.*\d*', r).group(0))
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# Serial
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class Serial():
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def __init__(self, this_mbed, tx, rx=""):
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self.mbed = this_mbed
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if isinstance(tx, str):
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self.name = tx
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def __del__(self):
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r = self.mbed.rpc(self.name, "delete", [])
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def baud(self, value):
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r = self.mbed.rpc(self.name, "baud", [str(value)])
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def putc(self, value):
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r = self.mbed.rpc(self.name, "putc", [str(value)])
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def puts(self, value):
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r = self.mbed.rpc(self.name, "puts", ["\"" + str(value) + "\""])
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def getc(self):
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r = self.mbed.rpc(self.name, "getc", [])
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return int(r)
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def wait(s):
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time.sleep(s)
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