[mirror_ubuntu-zesty-kernel.git] / include / linux / serial_sci.h

#ifndef __LINUX_SERIAL_SCI_H
#define __LINUX_SERIAL_SCI_H

#include <linux/serial_core.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)
#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,
};

/*
 * 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 */
};

#endif /* __LINUX_SERIAL_SCI_H */
Commit	Line	Data
96de1a8f PM	1	#ifndef __LINUX_SERIAL_SCI_H
96de1a8f PM	2	#define __LINUX_SERIAL_SCI_H
ecd95616 PM	3
	4	#include <linux/serial_core.h>
	5
	6	/*
96de1a8f	7	* Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts)
ecd95616 PM	8	*/
ecd95616 PM	9
26c92f37 PM	10	enum {
	11	SCBRR_ALGO_1, /* ((clk + 16 * bps) / (16 * bps) - 1) */
	12	SCBRR_ALGO_2, /* ((clk + 16 * bps) / (32 * bps) - 1) */
	13	SCBRR_ALGO_3, /* (((clk * 2) + 16 * bps) / (16 * bps) - 1) */
	14	SCBRR_ALGO_4, /* (((clk * 2) + 16 * bps) / (32 * bps) - 1) */
	15	SCBRR_ALGO_5, /* (((clk * 1000 / 32) / bps) - 1) */
	16	};
	17
00b9de9c PM	18	#define SCSCR_TIE (1 << 7)
	19	#define SCSCR_RIE (1 << 6)
	20	#define SCSCR_TE (1 << 5)
	21	#define SCSCR_RE (1 << 4)
	22	#define SCSCR_REIE (1 << 3)
	23	#define SCSCR_TOIE (1 << 2) /* not supported by all parts */
	24	#define SCSCR_CKE1 (1 << 1)
	25	#define SCSCR_CKE0 (1 << 0)
	26
ecd95616 PM	27	/* Offsets into the sci_port->irqs array */
	28	enum {
	29	SCIx_ERI_IRQ,
	30	SCIx_RXI_IRQ,
	31	SCIx_TXI_IRQ,
	32	SCIx_BRI_IRQ,
	33	SCIx_NR_IRQS,
	34	};
	35
	36	/*
	37	* Platform device specific platform_data struct
	38	*/
	39	struct plat_sci_port {
	40	void __iomem membase; / io cookie */
	41	unsigned long mapbase; /* resource base */
	42	unsigned int irqs[SCIx_NR_IRQS]; /* ERI, RXI, TXI, BRI */
	43	unsigned int type; /* SCI / SCIF / IRDA */
	44	upf_t flags; /* UPF_* flags */
501b825d	45	char clk; / clock string */
00b9de9c	46
26c92f37	47	unsigned int scbrr_algo_id; /* SCBRR calculation algo */
00b9de9c	48	unsigned int scscr; /* SCSCR initialization */
ecd95616 PM	49	};
ecd95616 PM	50
96de1a8f	51	#endif /* __LINUX_SERIAL_SCI_H */