static int u32_writer(struct driver_data *drv_data)
{
	void __iomem *reg = drv_data->ioaddr;

	if (is_tx_fifo_full(drv_data) || (drv_data->tx == drv_data->tx_end))
		return 0;

	write_SSDR(*(u32 *)(drv_data->tx), reg);
	drv_data->tx += 4;

	return 1;
}
Esempio n. 2
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static int u32_writer(struct driver_data *drv_data)
{
	void __iomem *reg = drv_data->ioaddr;

	if (((read_SSSR(reg) & SSSR_TFL_MASK) == SSSR_TFL_MASK)
		|| (drv_data->tx == drv_data->tx_end))
		return 0;

	write_SSDR(*(u32 *)(drv_data->tx), reg);
	drv_data->tx += 4;

	return 1;
}
Esempio n. 3
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static int u16_writer(struct driver_data *drv_data)
{
	void __iomem *reg = drv_data->ioaddr;

	if (((read_SSSR(reg) & 0x00000f00) == 0x00000f00)
		|| (drv_data->tx == drv_data->tx_end))
		return 0;

	write_SSDR(*(u16 *)(drv_data->tx), reg);
	drv_data->tx += 2;

	return 1;
}
static int null_writer(struct driver_data *drv_data)
{
	void __iomem *reg = drv_data->ioaddr;
	u8 n_bytes = drv_data->n_bytes;

	if (is_tx_fifo_full(drv_data) || (drv_data->tx == drv_data->tx_end))
		return 0;

	write_SSDR(0, reg);
	drv_data->tx += n_bytes;

	return 1;
}
Esempio n. 5
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static int null_writer(struct driver_data *drv_data)
{
	void __iomem *reg = drv_data->ioaddr;
	u8 n_bytes = drv_data->n_bytes;

	if (((read_SSSR(reg) & SSSR_TFL_MASK) == SSSR_TFL_MASK)
		|| (drv_data->tx == drv_data->tx_end))
		return 0;

	write_SSDR(0, reg);
	drv_data->tx += n_bytes;

	return 1;
}