summaryrefslogtreecommitdiffstats
path: root/c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h
diff options
context:
space:
mode:
Diffstat (limited to 'c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h')
-rw-r--r--c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h97
1 files changed, 0 insertions, 97 deletions
diff --git a/c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h b/c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h
deleted file mode 100644
index e8a1e36d01..0000000000
--- a/c/src/lib/libbsp/i386/shared/realmode_int/realmode_int.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/**
- * @file realmode_int.h
- *
- * @ingroup i386_shared
- *
- * @brief Definitioins supporting real mode interrupt calls.
- *
- * Interface allows calling given interrupt number with content of the
- * registers defined. For passing or receiving higher amounts of the data
- * there is a buffer accessible from real mode available. Real mode pointer
- * to this buffer is passed to the interrupt in the registers.
- */
-
-/*
- * Copyright (C) 2014 Jan Doležal (dolezj21@fel.cvut.cz)
- * CTU in Prague.
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#ifndef _REALMODE_INT_H
-#define _REALMODE_INT_H
-
-#include <rtems/score/cpu.h>
-#include <stdint.h>
-
-#ifndef ASM /* ASM */
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-/* --- BIOS service interrupt number --- */
-/* number of interrupt servicing video functions */
-#define INTERRUPT_NO_VIDEO_SERVICES 0x10
-
-/**
- * @brief Used for passing and retrieving registers content to/from real mode
- * interrupt call.
- */
-typedef struct {
- uint32_t reg_eax;
- uint32_t reg_ebx;
- uint32_t reg_ecx;
- uint32_t reg_edx;
- uint32_t reg_esi;
- uint32_t reg_edi;
- uint16_t reg_ds;
- uint16_t reg_es;
- uint16_t reg_fs;
- uint16_t reg_gs;
-} RTEMS_PACKED i386_realmode_interrupt_registers;
-
-/**
- * @brief Returns buffer and its size usable with real mode interrupt call.
- *
- * Provides position to real mode buffer. It is buffer
- * accessible from real mode context - it is located below
- * address ~0x100000 in order for it to be accessible
- * This buffer is meant to be pointed to by segReg:GenPurpReg
- * and through this get bigger portion of an information to/from
- * interrupt service routine than just by using register.
- *
- * @param[out] size pointer to variable, where the size of buffer
- * will be filled
- * @retval pointer to buffer
- */
-extern void *i386_get_default_rm_buffer(uint16_t *size);
-
-/**
- * @brief Call to real mode interrupt with specified int NO and processor
- * registers.
- *
- * This function allows calling interrupts in real mode and to set processor
- * registers as desired before interrupt call is made and to retrieve the
- * registers content after call was made.
- *
- * @param[in] interrupt_number interrupt number to be called
- * @param[in] ir pointer to structure containing registers to be passed to
- * interrupt and to retrieve register content after call was made.
- * @retval 0 call failed (GDT too small or pagin is on)
- * @retval 1 call successful
- */
-extern int i386_real_interrupt_call(
- uint8_t interrupt_number,
- i386_realmode_interrupt_registers *ir
-);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* ASM */
-
-#endif /* _REALMODE_INT_H */