+++ /dev/null
-/*
- * AcessOS EDI Interface
- * - IO Port Class
- *
- * By John Hodge (thePowersGang)
- *
- * This file has been released into the public domain.
- * You are free to use it as you wish.
- */
-#include "edi/edi.h"
-
-// === TYPES ===
-typedef struct {
- uint16_t State; // 0: Unallocated, 1: Allocated, 2: Initialised, (Bit 0x8000 set if in heap)
- uint16_t Num;
-} tEdiPort;
-
-// === GLOBALS ===
-#define NUM_PREALLOC_PORTS 128
-tEdiPort gEdi_PortObjects[NUM_PREALLOC_PORTS];
-
-// === FUNCTIONS ===
-/**
- * \fn object_pointer Edi_Int_IO_Construct(void)
- * \brief Creates a new IO Port Object
- * \return Pointer to object
- */
-object_pointer Edi_Int_IO_Construct(void)
-{
- tEdiPort *ret;
- int i;
- // Search for a free preallocated port
- for( i = 0; i < NUM_PREALLOC_PORTS; i ++ )
- {
- if(gEdi_PortObjects[i].State) continue;
- gEdi_PortObjects[i].State = 1;
- gEdi_PortObjects[i].Num = 0;
- return &gEdi_PortObjects[i];
- }
- // Else, use heap space
- ret = malloc( sizeof(tEdiPort) );
- ret->State = 0x8001;
- ret->Num = 0;
- return ret;
-}
-
-/**
- * \fn void Edi_Int_IO_Destruct(object_pointer Object)
- * \brief Destruct an IO Port Object
- * \param Object Object to destroy
- */
-void Edi_Int_IO_Destruct(object_pointer Object)
-{
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object,);
- obj = GET_DATA(Object);
-
- if(obj->State & 0x8000) { // If in heap, free
- free(Object);
- } else { // Otherwise, mark as unallocated
- obj->State = 0;
- }
-}
-
-/**
- * \fn int32_t Edi_Int_IO_InitPort(object_pointer Object, uint16_t Port)
- * \brief Initialises an IO Port
- * \param Object Object Pointer (this)
- * \param Port Port Number to use
- */
-int32_t Edi_Int_IO_InitPort(object_pointer Object, uint16_t Port)
-{
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
-
- if( !obj->State ) return 0;
- obj->Num = Port;
- obj->State &= ~0x3FFF;
- obj->State |= 2; // Set initialised flag
- return 1;
-}
-
-/**
- * \fn uint16_t Edi_Int_IO_GetPortNum(object_pointer Object)
- * \brief Returns the port number associated with the object
- * \param Object Port Object to get number from
- * \return Port Number
- */
-uint16_t Edi_Int_IO_GetPortNum(object_pointer Object)
-{
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- // Check if valid
- if( !obj->State ) return 0;
- // Return Port No
- return obj->Num;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_ReadByte(object_pointer Object, uint8_t *out)
- * \brief Read a byte from an IO port
- * \param Object Port Object
- * \param out Pointer to put read data
- */
-int32_t Edi_Int_IO_ReadByte(object_pointer Object, uint8_t *out)
-{
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
-
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "inb %%dx, %%al" : "=a" (*out) : "d" ( obj->Num ) );
-
- return 1;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_ReadWord(object_pointer Object, uint16_t *out)
- * \brief Read a word from an IO port
- * \param Object Port Object
- * \param out Pointer to put read data
- */
-int32_t Edi_Int_IO_ReadWord(object_pointer Object, uint16_t *out)
-{
-
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "inw %%dx, %%ax" : "=a" (*out) : "d" ( obj->Num ) );
-
- return 1;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_ReadDWord(object_pointer Object, uint32_t *out)
- * \brief Read a double word from an IO port
- * \param Object Port Object
- * \param out Pointer to put read data
- */
-int32_t Edi_Int_IO_ReadDWord(object_pointer Object, uint32_t *out)
-{
-
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "inl %%dx, %%eax" : "=a" (*out) : "d" ( obj->Num ) );
-
- return 1;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_ReadQWord(object_pointer Object, uint64_t *out)
- * \brief Read a quad word from an IO port
- * \param Object Port Object
- * \param out Pointer to put read data
- */
-int32_t Edi_Int_IO_ReadQWord(object_pointer Object, uint64_t *out)
-{
- uint32_t *out32 = (uint32_t*)out;
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "inl %%dx, %%eax" : "=a" (*out32) : "d" ( obj->Num ) );
- __asm__ __volatile__ ( "inl %%dx, %%eax" : "=a" (*(out32+1)) : "d" ( obj->Num+4 ) );
-
- return 1;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_ReadString(object_pointer Object, uint32_t Length, uint8_t *out)
- * \brief Read a byte from an IO port
- * \param Object Port Object
- * \param Length Number of bytes to read
- * \param out Pointer to put read data
- */
-int32_t Edi_Int_IO_ReadString(object_pointer Object, uint32_t Length, uint8_t *out)
-{
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "rep insb" : : "c" (Length), "D" (out), "d" ( obj->Num ) );
-
- return 1;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_WriteByte(object_pointer Object, uint8_t in)
- * \brief Write a byte from an IO port
- * \param Object Port Object
- * \param in Data to write
- */
-int32_t Edi_Int_IO_WriteByte(object_pointer Object, uint8_t in)
-{
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "outb %%al, %%dx" : : "a" (in), "d" ( obj->Num ) );
-
- return 1;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_WriteWord(object_pointer Object, uint16_t in)
- * \brief Write a word from an IO port
- * \param Object Port Object
- * \param in Data to write
- */
-int32_t Edi_Int_IO_WriteWord(object_pointer Object, uint16_t in)
-{
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "outw %%ax, %%dx" : : "a" (in), "d" ( obj->Num ) );
-
- return 1;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_WriteDWord(object_pointer Object, uint32_t in)
- * \brief Write a double word from an IO port
- * \param Object Port Object
- * \param in Data to write
- */
-int32_t Edi_Int_IO_WriteDWord(object_pointer Object, uint32_t in)
-{
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "outl %%eax, %%dx" : : "a" (in), "d" ( obj->Num ) );
-
- return 1;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_WriteQWord(object_pointer Object, uint64_t in)
- * \brief Write a quad word from an IO port
- * \param Object Port Object
- * \param in Data to write
- */
-int32_t Edi_Int_IO_WriteQWord(object_pointer Object, uint64_t in)
-{
- uint32_t *in32 = (uint32_t*)∈
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "outl %%eax, %%dx" : : "a" (*in32), "d" ( obj->Num ) );
- __asm__ __volatile__ ( "outl %%eax, %%dx" : : "a" (*(in32+1)), "d" ( obj->Num+4 ) );
-
- return 1;
-}
-
-/**
- * \fn int32_t Edi_Int_IO_WriteString(object_pointer Object, uint32_t Length, uint8_t *in)
- * \brief Read a byte from an IO port
- * \param Object Port Object
- * \param Length Number of bytes to write
- * \param in Pointer to of data to write
- */
-int32_t Edi_Int_IO_WriteString(object_pointer Object, uint32_t Length, uint8_t *in)
-{
- tEdiPort *obj;
- // Get Data Pointer
- VALIDATE_PTR(Object, 0);
- obj = GET_DATA(Object);
- if( !obj->State ) return 0;
- if( obj->State & 1 ) return -1; // Unintialised
-
- __asm__ __volatile__ ( "rep outsb" : : "c" (Length), "D" (in), "d" ( obj->Num ) );
-
- return 1;
-}
-
-// === CLASS DECLARATION ===
-/*static edi_variable_declaration_t *scEdi_Int_Variables_IO[] = {
- {
- {"pointer", "port_object", 0},
- {"uint16_t", "port", 0}
- },
- {
- {"pointer", "port_object", 0}
- },
- {
- {"pointer", "port_object", 0},
- {"pointer int8_t", "out", 0}
- }
-};*/
-static edi_function_declaration_t scEdi_Int_Functions_IO[] = {
- {"int32_t", "init_io_port", 1, 2, NULL, //scEdi_Int_Variables_IO[0],
- (function_pointer)Edi_Int_IO_InitPort
- },
- {"uint16_t", "get_port_number", 1, 1, NULL, //scEdi_Int_Variables_IO[1],
- (function_pointer)Edi_Int_IO_GetPortNum
- },
- {"int32_t", "read_byte_io_port", 1, 2, NULL, //scEdi_Int_Variables_IO[2],
- (function_pointer)Edi_Int_IO_ReadByte
- },
- {"int32_t", "read_word_io_port", 1, 2, NULL/*{
- {"pointer", "port_object", 0},
- {"pointer int16_t", "out", 0}
- }*/,
- (function_pointer)Edi_Int_IO_ReadWord
- },
- {"int32_t", "read_long_io_port", 1, 2, NULL/*{
- {"pointer", "port_object", 0},
- {"pointer int32_t", "out", 0}
- }*/,
- (function_pointer)Edi_Int_IO_ReadDWord
- },
- {"int32_t", "read_longlong_io_port", 1, 2, NULL/*{
- {"pointer", "port_object", 0},
- {"pointer int64_t", "out", 0}
- }*/,
- (function_pointer)Edi_Int_IO_ReadQWord
- },
- {"int32_t", "read_string_io_port", 1, 3, NULL/*{
- {"pointer", "port_object", 0},
- {"int32_T", "data_length", 0},
- {"pointer int64_t", "out", 0}
- }*/,
- (function_pointer)Edi_Int_IO_ReadString
- },
-
- {"int32_t", "write_byte_io_port", 1, 2, NULL/*{
- {"pointer", "port_object", 0},
- {"int8_t", "in", 0}
- }*/,
- (function_pointer)Edi_Int_IO_WriteByte},
- {"int32_t", "write_word_io_port", 1, 2, NULL/*{
- {"pointer", "port_object", 0},
- {"int16_t", "in", 0}
- }*/,
- (function_pointer)Edi_Int_IO_WriteWord},
- {"int32_t", "write_long_io_port", 1, 2, NULL/*{
- {"pointer", "port_object", 0},
- {"int32_t", "in", 0}
- }*/,
- (function_pointer)Edi_Int_IO_WriteDWord},
- {"int32_t", "write_longlong_io_port", 1, 2, NULL/*{
- {"pointer", "port_object", 0},
- {"int64_t", "in", 0}
- }*/,
- (function_pointer)Edi_Int_IO_WriteQWord}
- };
-static edi_class_declaration_t scEdi_Int_Class_IO =
- {
- IO_PORT_CLASS, 1, 12,
- scEdi_Int_Functions_IO,
- Edi_Int_IO_Construct,
- Edi_Int_IO_Destruct,
- NULL
- };
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