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// license:BSD-3-Clause
// copyright-holders:Sandro Ronco
/***************************************************************************
SED1520 LCD controller
***************************************************************************/
#ifndef MAME_VIDEO_SED1520_H
#define MAME_VIDEO_SED1520_H
#pragma once
#define MCFG_SED1520_ADD( _tag, _cb ) \
MCFG_DEVICE_ADD( _tag, SED1520, 0 ) \
sed1520_device::static_set_screen_update_cb(*device, _cb);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
#define SED1520_UPDATE_CB(name) uint32_t name(device_t &device, bitmap_ind16 &bitmap, const rectangle &cliprect, uint8_t *vram, int start_line, int adc)
// ======================> sed1520_device
class sed1520_device : public device_t
{
public:
typedef uint32_t (*screen_update_func)(device_t &device, bitmap_ind16 &bitmap, const rectangle &cliprect, uint8_t *vram, int start_line, int adc);
// construction/destruction
sed1520_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// static configuration helpers
static void static_set_screen_update_cb(device_t &device, 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_t 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_t m_lcd_on;
uint8_t m_busy;
uint8_t m_page;
uint8_t m_column;
uint8_t m_old_column;
uint8_t m_start_line;
uint8_t m_adc;
uint8_t m_static_drive;
bool m_modify_write;
screen_update_func m_screen_update_func;
uint8_t m_vram[0x140];
};
// device type definition
DECLARE_DEVICE_TYPE(SED1520, sed1520_device)
#endif // MAME_VIDEO_SED1520_H
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