mirror of
https://github.com/xtacocorex/CHIP_IO
synced 2025-07-20 12:53:22 +00:00
forgot to update the chip pro detection in Utilties, removed overlay stuff from makefile, cleaned up readme
This commit is contained in:
Robert Wolterman
@ -43,53 +43,66 @@ def toggle_debug():
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# Set the 1.8V-pin on the CHIP U13-header to given voltage
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# Return False on error
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def set_1v8_pin_voltage(voltage):
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if not isinstance(voltage, int) and not isinstance(voltage, float):
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return False
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if voltage < 1.8 or voltage > 3.3:
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return False
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if DEBUG:
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print("Setting 1.8V Pin voltage: {0}".format(voltage))
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voltage=int(round((voltage - 1.8) / 0.1)) << 4
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if subprocess.call(["/usr/sbin/i2cset", "-f", "-y" ,"0", "0x34", "0x90", "0x03"]):
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if not is_chip_pro():
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if not isinstance(voltage, int) and not isinstance(voltage, float):
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return False
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if voltage < 1.8 or voltage > 3.3:
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return False
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if DEBUG:
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print("Pin enable command failed")
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return False
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if subprocess.call(["/usr/sbin/i2cset", "-f", "-y", "0", "0x34", "0x91", str(voltage)]):
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if DEBUG:
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print("Pin set voltage command failed")
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return False
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return True
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print("Setting 1.8V Pin voltage: {0}".format(voltage))
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voltage=int(round((voltage - 1.8) / 0.1)) << 4
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if subprocess.call(["/usr/sbin/i2cset", "-f", "-y" ,"0", "0x34", "0x90", "0x03"]):
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if DEBUG:
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print("Pin enable command failed")
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return False
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if subprocess.call(["/usr/sbin/i2cset", "-f", "-y", "0", "0x34", "0x91", str(voltage)]):
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if DEBUG:
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print("Pin set voltage command failed")
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return False
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return True
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else:
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print("Set 1.8V Pin Voltage not supported on the CHIP Pro")
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# Get the voltage the 1.8V-pin on the CHIP U13-header has been configured as
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# Return False on error
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def get_1v8_pin_voltage():
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p=subprocess.Popen(["/usr/sbin/i2cget", "-f", "-y", "0", "0x34", "0x90"], stdout=subprocess.PIPE)
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output=p.communicate()[0].decode("utf-8").strip()
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#Not configured as an output
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if output != "0x03":
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if not is_chip_pro():
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p=subprocess.Popen(["/usr/sbin/i2cget", "-f", "-y", "0", "0x34", "0x90"], stdout=subprocess.PIPE)
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output=p.communicate()[0].decode("utf-8").strip()
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#Not configured as an output
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if output != "0x03":
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if DEBUG:
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print("1.8V Pin is currently disabled")
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return False
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p=subprocess.Popen(["/usr/sbin/i2cget", "-f", "-y", "0", "0x34", "0x91"], stdout=subprocess.PIPE)
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output=p.communicate()[0].decode("utf-8").strip()
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voltage=round((int(output, 16) >> 4) * 0.1 + 1.8, 1)
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if DEBUG:
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print("1.8V Pin is currently disabled")
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return False
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p=subprocess.Popen(["/usr/sbin/i2cget", "-f", "-y", "0", "0x34", "0x91"], stdout=subprocess.PIPE)
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output=p.communicate()[0].decode("utf-8").strip()
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voltage=round((int(output, 16) >> 4) * 0.1 + 1.8, 1)
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if DEBUG:
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print("Current 1.8V Pin voltage: {0}".format(voltage))
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return voltage
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print("Current 1.8V Pin voltage: {0}".format(voltage))
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return voltage
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else:
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print("Get 1.8V Pin Voltage not supported on the CHIP Pro")
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# Enable 1.8V Pin on CHIP U13 Header
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def enable_1v8_pin():
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set_1v8_pin_voltage(1.8)
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if not is_chip_pro():
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set_1v8_pin_voltage(1.8)
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else:
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print("Enable 1.8V Pin not supported on the CHIP Pro")
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# Disable 1.8V Pin on CHIP U13 Header
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def disable_1v8_pin():
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if DEBUG:
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print("Disabling the 1.8V Pin")
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# CANNOT USE I2C LIB AS WE NEED TO FORCE THE COMMAND DUE TO THE KERNEL OWNING THE DEVICE
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# First we have to write 0x05 to AXP-209 Register 0x91
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subprocess.call('/usr/sbin/i2cset -f -y 0 0x34 0x91 0x05', shell=True)
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# Then we have to write 0x07 to AXP-209 Register 0x90
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subprocess.call('/usr/sbin/i2cset -f -y 0 0x34 0x90 0x07', shell=True)
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if not is_chip_pro():
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if DEBUG:
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print("Disabling the 1.8V Pin")
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# CANNOT USE I2C LIB AS WE NEED TO FORCE THE COMMAND DUE TO THE KERNEL OWNING THE DEVICE
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# First we have to write 0x05 to AXP-209 Register 0x91
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subprocess.call('/usr/sbin/i2cset -f -y 0 0x34 0x91 0x05', shell=True)
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# Then we have to write 0x07 to AXP-209 Register 0x90
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subprocess.call('/usr/sbin/i2cset -f -y 0 0x34 0x90 0x07', shell=True)
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else:
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print("Disable 1.8V Pin not supported on the CHIP Pro")
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# Unexport All
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def unexport_all():
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@ -107,18 +120,25 @@ def unexport_all():
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def is_chip_pro():
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isgr8 = False
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if DEBUG:
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print("Determining if computer has R8 or GR8 SOC")
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print("Determining if computer is CHIP or CHIP Pro")
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files = glob.glob("/boot/*.dtb")
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for f in files:
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if "gr8" in f.lower():
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isgr8 = True
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if DEBUG:
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print("Found gr8 SOC")
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break
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# GET FIRST LINE FROM /proc/meminfo
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f = open("/proc/meminfo","r")
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fline = f.readline()
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f.close()
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if DEBUG and not isgr8:
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print("Found r8 SOC")
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# FIGURE OUT OUR TOTAL MEMORY SIZE
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parts = fline.split()
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mem = float(parts[1]) / 1024
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if mem > 380:
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isgr8 = False
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if DEBUG:
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print("found CHIP!")
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else:
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isgr8 = True
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if DEBUG:
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print("found CHIP Pro!")
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# Return isgr8
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return isgr8
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