#ifndef __LINUX_SERIAL_SCI_H
  #define __LINUX_SERIAL_SCI_H

  
  #include <linux/serial_core.h>

  #include <linux/sh_dma.h>

  
  /*

   * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts)

   */

  enum {
  	SCBRR_ALGO_1,		/* ((clk + 16 * bps) / (16 * bps) - 1) */
  	SCBRR_ALGO_2,		/* ((clk + 16 * bps) / (32 * bps) - 1) */
  	SCBRR_ALGO_3,		/* (((clk * 2) + 16 * bps) / (16 * bps) - 1) */
  	SCBRR_ALGO_4,		/* (((clk * 2) + 16 * bps) / (32 * bps) - 1) */
  	SCBRR_ALGO_5,		/* (((clk * 1000 / 32) / bps) - 1) */
  };

  #define SCSCR_TIE	(1 << 7)
  #define SCSCR_RIE	(1 << 6)
  #define SCSCR_TE	(1 << 5)
  #define SCSCR_RE	(1 << 4)

  #define SCSCR_REIE	(1 << 3)	/* not supported by all parts */

  #define SCSCR_TOIE	(1 << 2)	/* not supported by all parts */
  #define SCSCR_CKE1	(1 << 1)
  #define SCSCR_CKE0	(1 << 0)

  /* Offsets into the sci_port->irqs array */
  enum {
  	SCIx_ERI_IRQ,
  	SCIx_RXI_IRQ,
  	SCIx_TXI_IRQ,
  	SCIx_BRI_IRQ,
  	SCIx_NR_IRQS,
  };

  struct device;

  /*
   * Platform device specific platform_data struct
   */
  struct plat_sci_port {
  	void __iomem	*membase;		/* io cookie */
  	unsigned long	mapbase;		/* resource base */
  	unsigned int	irqs[SCIx_NR_IRQS];	/* ERI, RXI, TXI, BRI */
  	unsigned int	type;			/* SCI / SCIF / IRDA */
  	upf_t		flags;			/* UPF_* flags */

  	char		*clk;			/* clock string */

  	unsigned int	scbrr_algo_id;		/* SCBRR calculation algo */

  	unsigned int	scscr;			/* SCSCR initialization */

  	struct device	*dma_dev;

  #ifdef CONFIG_SERIAL_SH_SCI_DMA

  	unsigned int dma_slave_tx;
  	unsigned int dma_slave_rx;

  #endif

  };

  #endif /* __LINUX_SERIAL_SCI_H */