1 files changed, 132 insertions, 0 deletions
diff --git a/bsps/i386/pc386/include/bsp/fb_vesa.h b/bsps/i386/pc386/include/bsp/fb_vesa.h
new file mode 100644
index 0000000000..d8bfd1bcb4
--- /dev/null
+++ b/bsps/i386/pc386/include/bsp/fb_vesa.h
@@ -0,0 +1,132 @@
+/**
+ * @file fb_vesa.h
+ *
+ * @ingroup i386_pc386
+ *
+ * @brief Headers specific for framebuffer drivers utilizing VESA VBE.
+ */
+
+/*
+ * 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.
+ */
+
+#include <bsp/vbe3.h>
+#include <edid.h>
+
+#ifndef _FB_VESA_H
+#define _FB_VESA_H
+
+#ifndef ASM /* ASM */
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/* ----- Prototypes ----- */
+
+/**
+ * @brief Returns information about graphic's controller in the \p info_block
+ * structure.
+ *
+ * @param[out] info_block pointer to the struct to be filled with
+ *                  controller information
+ * @param[in] queried_VBE_Version if >0x200 then video bios is asked to fill in
+ *                          parameters which appeared with second version
+ *                          of VBE.
+ * @retval  ax register content as defined in VBE RETURN STATUS paragraph
+ * @retval  -1 error calling graphical bios
+ */
+uint32_t VBE_controller_information (
+    VBE_vbe_info_block *info_block,
+    uint16_t queried_VBE_Version
+);
+
+/**
+ * @brief Fills structure \p info_block with informations about selected mode in
+ * \p mode_number variable.
+ *
+ * @param[out] info_block pointer to the struct to be filled with
+ *                        mode information
+ * @param[in] mode_number detailes of this mode to be filled
+ * @retval  ax register content as defined in VBE RETURN STATUS paragraph
+ * @retval  -1 error calling graphical bios
+ */
+uint32_t VBE_mode_information (
+    VBE_mode_info_block *info_block,
+    uint16_t mode_number
+);
+
+/**
+ * @brief Sets graphics mode selected. If mode has refreshRateCtrl bit set, than
+ * the \p info_block must be filled accordingly.
+ *
+ * @param[in] mode_number number of mode to be set
+ * @param[in] info_block pointer to struct containing refresh rate control info
+ * @retval  ax register content as defined in VBE RETURN STATUS paragraph
+ * @retval  -1 error calling graphical bios
+ */
+uint32_t VBE_set_mode (
+    uint16_t mode_number,
+    VBE_CRTC_info_block *info_block
+);
+
+/**
+ * @brief Get currently set mode number.
+ *
+ * @param[out] mode_number variable to be filled with current mode number
+ * @retval  ax register content as defined in VBE RETURN STATUS paragraph
+ * @retval  -1 error calling graphical bios
+ */
+uint32_t VBE_current_mode (
+    uint16_t *mode_number
+);
+
+/**
+ * @brief Gets information about display data channel implemented in the
+ * graphic's controller.
+ *
+ * @param[in] controller_unit_number
+ * @param[out] seconds_to_transfer_EDID_block approximate time to transfer one
+ *                                      EDID block rounded up to seconds
+ * @param[out] DDC_level_supported contains DDC version supported and
+ *                          screen blanking state during transfer
+ * @retval  ax register content as defined in VBE RETURN STATUS paragraph
+ * @retval  -1 error calling graphical bios
+ */
+uint32_t VBE_report_DDC_capabilities (
+    uint16_t controller_unit_number,
+    uint8_t *seconds_to_transfer_EDID_block,
+    uint8_t *DDC_level_supported
+);
+
+/**
+ * @brief Reads selected EDID block from display attached to controller's
+ * interface.
+ *
+ * @param[in] controller_unit_number
+ * @param[in] EDID_block_number block no. to be read from the display
+ * @param[out] buffer place to store block fetched from the display
+ * @retval  ax register content as defined in VBE RETURN STATUS paragraph
+ * @retval  -1 error calling graphical bios
+ */
+uint32_t VBE_read_EDID (
+    uint16_t controller_unit_number,
+    uint16_t EDID_block_number,
+    EDID_edid1 *buffer
+);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* ASM */
+
+#endif /* _FB_VESA_H */