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// license:BSD-3-Clause
// copyright-holders:Sandro Ronco
/***************************************************************************
SED1520 LCD controller
***************************************************************************/
#pragma once
#ifndef __SED1520_H__
#define __SED1520_H__
#define MCFG_SED1520_ADD( _tag, _cb ) \
MCFG_DEVICE_ADD( _tag, SED1520, 0 ) \
sed1520_device::static_set_screen_update_cb(*device, _cb);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
typedef UINT32 (*sed1520_screen_update_func)(device_t &device, bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 *vram, int start_line, int adc);
#define SED1520_UPDATE_CB(name) UINT32 name(device_t &device, bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 *vram, int start_line, int adc)
// ======================> sed1520_device
class sed1520_device : public device_t
{
public:
// construction/destruction
sed1520_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);
// static configuration helpers
static void static_set_screen_update_cb(device_t &device, sed1520_screen_update_func _cb) { downcast<sed1520_device &>(device).m_screen_update_func = _cb; }
// device interface
virtual DECLARE_WRITE8_MEMBER(write);
virtual DECLARE_READ8_MEMBER(read);
virtual DECLARE_WRITE8_MEMBER(control_write);
virtual DECLARE_READ8_MEMBER(status_read);
virtual DECLARE_WRITE8_MEMBER(data_write);
virtual DECLARE_READ8_MEMBER(data_read);
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
private:
// internal state
UINT8 m_lcd_on;
UINT8 m_busy;
UINT8 m_page;
UINT8 m_column;
UINT8 m_old_column;
UINT8 m_start_line;
UINT8 m_adc;
UINT8 m_static_drive;
bool m_modify_write;
sed1520_screen_update_func m_screen_update_func;
UINT8 m_vram[0x140];
};
// device type definition
extern const device_type SED1520;
#endif
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