<?xml version="1.0" encoding="UTF-8"?>
<xs:schema
  elementFormDefault="qualified"
  xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <xs:complexType name="STM32GPIOv2PortType">

    <xs:sequence>
      <xs:element
        name="pin0"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin1"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin2"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin3"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin4"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin5"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin6"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin7"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin8"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin9"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin10"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin11"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin12"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin13"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin14"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
      <xs:element
        name="pin15"
        type="STM32GPIOv2PinType"
        maxOccurs="1"
        minOccurs="1"></xs:element>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="STM32GPIOv2PinType">
    <xs:annotation>
      <xs:documentation>
        Object representing an STM32 pin for the GPIOv2
        peripheral.
      </xs:documentation>
    </xs:annotation>
    <xs:attribute
      name="ID"
      use="required">
      <xs:annotation>
        <xs:documentation>Pin identifier, used to generate a #define with the
          pin name.
        </xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:annotation>
          <xs:documentation>
          </xs:documentation>
        </xs:annotation>
        <xs:restriction base="xs:string">
          <xs:pattern value="\w?[\w\d_]*"></xs:pattern>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
    <xs:attribute
      name="Mode"
      use="required">
      <xs:annotation>
        <xs:documentation>
          Pin mode, as defined for MODER register.
        </xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value="Input"></xs:enumeration>
          <xs:enumeration value="Output"></xs:enumeration>
          <xs:enumeration value="Alternate"></xs:enumeration>
          <xs:enumeration value="Analog"></xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
    <xs:attribute
      name="Level"
      use="required">
      <xs:annotation>
        <xs:documentation>Logic level for the ODR register.</xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value="High"></xs:enumeration>
          <xs:enumeration value="Low"></xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
    <xs:attribute
      name="Speed"
      use="required">
      <xs:annotation>
        <xs:documentation>
          Pin speed as defined in SPEEDR register.
        </xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value="Minimum"></xs:enumeration>
          <xs:enumeration value="Low"></xs:enumeration>
          <xs:enumeration value="High"></xs:enumeration>
          <xs:enumeration value="Maximum"></xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
    <xs:attribute
      name="Type"
      use="required">
      <xs:annotation>
        <xs:documentation>
          Pin type as defined in TYPER register.
        </xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value="PushPull"></xs:enumeration>
          <xs:enumeration value="OpenDrain"></xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
    <xs:attribute
      name="Resistor"
      use="required">
      <xs:annotation>
        <xs:documentation>
          Pin pull-up/down resistor as defined in PUDR register.
        </xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:string">
          <xs:enumeration value="Floating"></xs:enumeration>
          <xs:enumeration value="PullUp"></xs:enumeration>
          <xs:enumeration value="PullDown"></xs:enumeration>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
    <xs:attribute
      name="Alternate"
      use="required">
      <xs:annotation>
        <xs:documentation>
          Pin alternate function number, only valid if
          "Alternate" is selected
          in the Mode attribute.
        </xs:documentation>
      </xs:annotation>
      <xs:simpleType>
        <xs:restriction base="xs:int">
          <xs:minInclusive value="0"></xs:minInclusive>
          <xs:maxInclusive value="15"></xs:maxInclusive>
          <xs:whiteSpace value="collapse"></xs:whiteSpace>
        </xs:restriction>
      </xs:simpleType>
    </xs:attribute>
  </xs:complexType>
</xs:schema>