ef9345.h

// license:GPL-2.0+
// copyright-holders:Daniel Coulom,Sandro Ronco
/*********************************************************************

    ef9345.h

    Thomson EF9345 video controller

*********************************************************************/

#ifndef _EF9345_H
#define _EF9345_H


//**************************************************************************
//  TYPE DEFINITIONS
//**************************************************************************

#define	EF9345	0x01
#define TS9347	0x02

struct ef9345 {
	uint8_t *m_videoram;
	uint16_t vram_mask;
	uint8_t *m_charset;			  //font ROM
	uint8_t m_bf;                             //busy flag
	uint8_t m_char_mode;                      //40 or 80 chars for line
	uint8_t m_acc_char[0x2000];               //accented chars
	uint8_t reg[8];		                   //registers R0-R7
	uint8_t m_state;                          //status register
	uint8_t m_tgs,m_mat,m_pat,m_dor,m_ror;    //indirect registers
	uint8_t m_border[80];                     //border color
	uint16_t m_block;                         //current memory block
	uint16_t m_ram_base[4];                   //index of ram charset
	uint8_t m_blink;                          //cursor status
	uint8_t m_last_dial[40];                  //last chars dial (for determinate the zoom position)
	uint8_t m_latchc0;                        //background color latch
	uint8_t m_latchm;                         //hided attribute latch
	uint8_t m_latchi;                         //insert attribute latch
	uint8_t m_latchu;                         //underline attribute latch

	uint32_t raster[312][492];		  //336 for 40 col
	uint32_t *m_palette;

	unsigned m_variant;
	unsigned trace;
	unsigned busy_ticks;
	unsigned long flash;
};

uint8_t ef9345_read(struct ef9345 *ef, uint8_t offset);
void ef9345_write(struct ef9345 *ef, uint8_t offset, uint8_t data);
void ef9345_reset(struct ef9345 *ef);
struct ef9345 *ef9345_create(unsigned variant, uint8_t *vram, uint8_t *vrom, uint16_t vram_mask);
void ef9345_free(struct ef9345 *ef);
void ef9345_trace(struct ef9345 *ef, unsigned trace);

void ef9345_set_colourmap(struct ef9345 *ef, uint32_t *cmap);
uint32_t *ef9345_get_raster(struct ef9345 *ef);
void ef9345_rasterize(struct ef9345 *ef);

void ef9345_cycles(struct ef9345 *ef, unsigned long usec);

#endif	// _EF9345_H