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#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)
*/
#define SCIx_NOT_SUPPORTED (-1)
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)
/* SCxSR SCI */
#define SCI_TDRE 0x80
#define SCI_RDRF 0x40
#define SCI_ORER 0x20
#define SCI_FER 0x10
#define SCI_PER 0x08
#define SCI_TEND 0x04
#define SCI_DEFAULT_ERROR_MASK (SCI_PER | SCI_FER)
/* SCxSR SCIF */
#define SCIF_ER 0x0080
#define SCIF_TEND 0x0040
#define SCIF_TDFE 0x0020
#define SCIF_BRK 0x0010
#define SCIF_FER 0x0008
#define SCIF_PER 0x0004
#define SCIF_RDF 0x0002
#define SCIF_DR 0x0001
#define SCIF_DEFAULT_ERROR_MASK (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
/* Offsets into the sci_port->irqs array */
enum {
SCIx_ERI_IRQ,
SCIx_RXI_IRQ,
SCIx_TXI_IRQ,
SCIx_BRI_IRQ,
SCIx_NR_IRQS,
};
#define SCIx_IRQ_MUXED(irq) \
{ \
[SCIx_ERI_IRQ] = (irq), \
[SCIx_RXI_IRQ] = (irq), \
[SCIx_TXI_IRQ] = (irq), \
[SCIx_BRI_IRQ] = (irq), \
}
struct device;
/*
* Platform device specific platform_data struct
*/
struct plat_sci_port {
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 */
unsigned int scbrr_algo_id; /* SCBRR calculation algo */
unsigned int scscr; /* SCSCR initialization */
/*
* Platform overrides if necessary, defaults otherwise.
*/
int overrun_bit;
unsigned int error_mask;
struct device *dma_dev;
unsigned int dma_slave_tx;
unsigned int dma_slave_rx;
};
#endif /* __LINUX_SERIAL_SCI_H */
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