1 #ifndef __LINUX_SERIAL_SCI_H
2 #define __LINUX_SERIAL_SCI_H
4 #include <linux/serial_core.h>
5 #include <linux/sh_dma.h>
8 * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts)
11 #define SCIx_NOT_SUPPORTED (-1)
14 SCBRR_ALGO_1, /* ((clk + 16 * bps) / (16 * bps) - 1) */
15 SCBRR_ALGO_2, /* ((clk + 16 * bps) / (32 * bps) - 1) */
16 SCBRR_ALGO_3, /* (((clk * 2) + 16 * bps) / (16 * bps) - 1) */
17 SCBRR_ALGO_4, /* (((clk * 2) + 16 * bps) / (32 * bps) - 1) */
18 SCBRR_ALGO_5, /* (((clk * 1000 / 32) / bps) - 1) */
21 #define SCSCR_TIE (1 << 7)
22 #define SCSCR_RIE (1 << 6)
23 #define SCSCR_TE (1 << 5)
24 #define SCSCR_RE (1 << 4)
25 #define SCSCR_REIE (1 << 3) /* not supported by all parts */
26 #define SCSCR_TOIE (1 << 2) /* not supported by all parts */
27 #define SCSCR_CKE1 (1 << 1)
28 #define SCSCR_CKE0 (1 << 0)
38 #define SCI_DEFAULT_ERROR_MASK (SCI_PER | SCI_FER)
41 #define SCIF_ER 0x0080
42 #define SCIF_TEND 0x0040
43 #define SCIF_TDFE 0x0020
44 #define SCIF_BRK 0x0010
45 #define SCIF_FER 0x0008
46 #define SCIF_PER 0x0004
47 #define SCIF_RDF 0x0002
48 #define SCIF_DR 0x0001
50 #define SCIF_DEFAULT_ERROR_MASK (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
52 /* Offsets into the sci_port->irqs array */
61 #define SCIx_IRQ_MUXED(irq) \
63 [SCIx_ERI_IRQ] = (irq), \
64 [SCIx_RXI_IRQ] = (irq), \
65 [SCIx_TXI_IRQ] = (irq), \
66 [SCIx_BRI_IRQ] = (irq), \
72 * Platform device specific platform_data struct
74 struct plat_sci_port {
75 unsigned long mapbase; /* resource base */
76 unsigned int irqs[SCIx_NR_IRQS]; /* ERI, RXI, TXI, BRI */
77 unsigned int type; /* SCI / SCIF / IRDA */
78 upf_t flags; /* UPF_* flags */
80 unsigned int scbrr_algo_id; /* SCBRR calculation algo */
81 unsigned int scscr; /* SCSCR initialization */
84 * Platform overrides if necessary, defaults otherwise.
87 unsigned int error_mask;
91 struct device *dma_dev;
93 unsigned int dma_slave_tx;
94 unsigned int dma_slave_rx;
97 #endif /* __LINUX_SERIAL_SCI_H */