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// license:BSD-3-Clause
// copyright-holders:AJR
/**********************************************************************
Toshiba T6963C Dot Matrix LCD Controller
Sharp LM24014H Dot Matrix LCD Unit
**********************************************************************/
#ifndef MAME_VIDEO_T6963C_H
#define MAME_VIDEO_T6963C_H
#pragma once
#include "emupal.h"
#include "screen.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> t6963c_device
class t6963c_device : public device_t, public device_memory_interface
{
enum class auto_mode : u8
{
READ = 0,
WRITE = 1,
NONE = 2
};
public:
// construction/destruction
t6963c_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// CPU read/write access
u8 read(offs_t offset);
void write(offs_t offset, u8 data);
// Display configurations
void set_md(u8 data); // MD0, MD1, MD2, MD3, MDS
void set_fs(u8 data); // FS0, FS1
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
static constexpr feature_type imperfect_features() { return feature::GRAPHICS; }
protected:
// device-specific overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_memory_interface overrides
virtual space_config_vector memory_space_config() const override;
private:
// internal helpers
void do_command(u8 cmd);
// configuration and object finders
address_space_config m_display_config;
required_region_ptr<u8> m_cgrom;
address_space *m_display_ram;
// internal state
u16 m_data;
u16 m_adp;
auto_mode m_auto_mode;
u16 m_graphic_home;
u16 m_text_home;
u16 m_graphic_area;
u16 m_text_area;
u16 m_cgram_offset;
u8 m_mode;
u8 m_display_mode;
u8 m_font_size;
u8 m_number_cols;
u8 m_number_lines;
};
// ======================> lm24014h_device
class lm24014h_device : public device_t
{
public:
// construction/destruction
lm24014h_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock = XTAL());
// CPU read/write access
u8 read(offs_t offset) { return m_lcdc->read(offset); }
void write(offs_t offset, u8 data) { m_lcdc->write(offset, data); }
void set_fs(u8 data) { m_fs = data & 1; }
protected:
// device-specific overrides
virtual void device_start() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
void lcd_palette(palette_device &palette) const;
private:
// internal configuration
void ram_map(address_map &map);
// internal LCD controller
required_device<t6963c_device> m_lcdc;
int m_fs;
};
// device type declarations
DECLARE_DEVICE_TYPE(T6963C, t6963c_device)
DECLARE_DEVICE_TYPE(LM24014H, lm24014h_device)
#endif // MAME_VIDEO_T6963C_H
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