C++ (Cpp) rtl_shift_in_bits примеры использования

Пример #1

Файл: rtl_eeprom.c Проект: ArthySundaram/firstrepo

//-------------------------------------------------------------------
//rtl_eeprom_read_sc():
//	read one word from eeprom
//-------------------------------------------------------------------
u16 rtl_eeprom_read_sc(void __iomem *ioaddr, u16 reg)
{

	int addr_sz = 6;
	u8 x;
	u16 data;

	if (rtl_eeprom_type(ioaddr))
		addr_sz = 8;
	else
		addr_sz = 6;

	x = RTL_R8(Cfg9346);
	x &= ~(Cfg9346_EEDI | Cfg9346_EEDO | Cfg9346_EESK);
	x |= Cfg9346_EEM1 | Cfg9346_EECS;
	RTL_W8(Cfg9346, x);

	rtl_shift_out_bits(RTL_EEPROM_READ_OPCODE, 3, ioaddr);
	rtl_shift_out_bits(reg, addr_sz, ioaddr);

	data = rtl_shift_in_bits(ioaddr);

	rtl_eeprom_cleanup(ioaddr);

	return data;
}

Пример #2

Файл: rtl_eeprom.c Проект: SimpleJian/AfterInstallUbuntu

//-------------------------------------------------------------------
//rtl_eeprom_read_sc():
//  read one word from eeprom
//-------------------------------------------------------------------
u16 rtl_eeprom_read_sc(struct rtl8168_private *tp, u16 reg)
{
    void __iomem *ioaddr=tp->mmio_addr;
    int addr_sz = 6;
    u8 x;
    u16 data;

    if(tp->eeprom_type == EEPROM_TYPE_NONE) {
        return -1;
    }

    if (tp->eeprom_type==EEPROM_TYPE_93C46)
        addr_sz = 6;
    else if (tp->eeprom_type==EEPROM_TYPE_93C56)
        addr_sz = 8;

    x = Cfg9346_EEM1 | Cfg9346_EECS;
    RTL_W8(Cfg9346, x);

    rtl_shift_out_bits(RTL_EEPROM_READ_OPCODE, 3, ioaddr);
    rtl_shift_out_bits(reg, addr_sz, ioaddr);

    data = rtl_shift_in_bits(ioaddr);

    rtl_eeprom_cleanup(ioaddr);

    RTL_W8(Cfg9346, 0);

    return data;
}