/*
 * (c) 2010, SWD Embedded Systems Limited, http://www.kpda.ru
 */


/*
 * The "vesabios" driver - hands off all drawing functionality to the
 * Flat Frame Buffer library.
 */

#include "vesabios.h"
#include <graphics/ffb.h>

int
vesa_misc_wait_idle(disp_adapter_t *adapter)
{
        return 0;
}

int
vesa_draw_init(disp_adapter_t *adapter, char *optstring)
{
	return 0;
}

void
vesa_fini(disp_adapter_t *adapter)
{
}

void
vesa_module_info(disp_adapter_t *adapter, disp_module_info_t *info)
{
	info->description = "vesa - unaccelerated driver "
	    "for VESA 2.00 compliant adapters";
	info->ddk_version_major = DDK_VERSION_MAJOR;
	info->ddk_version_minor = DDK_VERSION_MINOR;
	info->ddk_rev = DDK_REVISION;
	info->driver_rev = 0;
}

int
devg_get_miscfuncs(disp_adapter_t *adapter,
    disp_draw_miscfuncs_t *funcs, int tabsize)
{
	DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
	    init, vesa_draw_init, tabsize);
	DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
	    fini, vesa_fini, tabsize);
	DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
	    module_info, vesa_module_info, tabsize);
	DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
	    get_2d_caps, ffb_get_2d_caps, tabsize);
        DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
            get_corefuncs_sw, ffb_get_corefuncs, tabsize);
        DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
            get_contextfuncs_sw, ffb_get_contextfuncs, tabsize);

        DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
            attach_external, vesa_attach_external, tabsize);
        DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
            detach_external, vesa_detach_external, tabsize);
        DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
            recover, vesa_recover, tabsize);
        DISP_ADD_FUNC(disp_draw_miscfuncs_t, funcs,
            wait_idle, vesa_misc_wait_idle, tabsize);


	return 0;
}

int
devg_get_corefuncs(disp_adapter_t *adapter,
    unsigned pixel_format, disp_draw_corefuncs_t *funcs, int tabsize)
{
	return ffb_get_corefuncs(adapter, pixel_format, funcs, tabsize);
}

int
devg_get_contextfuncs(disp_adapter_t *adapter,
    disp_draw_contextfuncs_t *funcs, int tabsize)
{
	return ffb_get_contextfuncs(adapter, funcs, tabsize);
}

/*
 * Set up things so that miscfuncs, corefuncs and contextfuncs
 * can be called by an external process.
 */
int
vesa_attach_external(disp_adapter_t *adapter, disp_aperture_t aper[])
{
        vb_context_t        *vb_ctx = adapter->shmem;

        adapter->ms_ctx = vb_ctx;

        return 0;
}

int
vesa_detach_external(disp_adapter_t *adapter)
{
        return 0;
}

/*
 * Called when a client process terminated unexpectedly.  This could have
 * happened in the middle of adding draw commands to the ring buffer.
 * Reset the ring buffer so any partial draw commands are not sent to
 * the Radeon.
 */
int
vesa_recover(disp_adapter_t *adapter)
{
        return 0;
}