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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/***************************************************************************
ch376.h
"File manage and control chip CH376"
This is a module intended to offload USB and USB mass storage
I/O from a small microcontroller or microprocessor.
***************************************************************************/
#ifndef MAME_MACHINE_CH376_H
#define MAME_MACHINE_CH376_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> ch376_device
class ch376_device : public device_t
{
public:
// construction/destruction
ch376_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
u8 read(offs_t offset);
void write(offs_t offset, u8 data);
protected:
// device-level overrides
virtual void device_start() override;
private:
enum
{
STATE_IDLE = 0,
STATE_USB_MODE_SET,
STATE_GET_STATUS,
STATE_SET_FILE_NAME,
STATE_SEEK,
STATE_SEEK1,
STATE_SEEK2,
STATE_SEEK3,
STATE_READ_SIZE,
STATE_READ_SIZE2,
STATE_WRITE_SIZE_REPLY,
STATE_READ_WRITE_DATA,
STATE_GET_FILE_SIZE,
STATE_CHECK_EXIST
};
bool generateNextDirEntry();
void doNextFileRead();
int m_state;
u8 m_status, m_int_status, m_data, m_last_command;
char m_file_name[16];
int m_pointer;
std::string m_current_directory;
osd::directory::ptr m_directory;
osd_file::ptr m_file;
u32 m_file_pos;
u8 m_dataBuffer[512];
int m_dataPtr, m_dataLen;
u16 m_readLen;
u32 m_cur_file_size;
};
// device type definition
DECLARE_DEVICE_TYPE(CH376, ch376_device)
#endif // MAME_MACHINE_CH376_H
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