1 #ifndef __LINUX_SERIAL_SCI_H 2 #define __LINUX_SERIAL_SCI_H 3 4 #include <linux/serial_core.h> 5 #include <linux/sh_dma.h> 6 7 /* 8 * Generic header for SuperH (H)SCI(F) (used by sh/sh64 and related parts) 9 */ 10 11 #define SCIx_NOT_SUPPORTED (-1) 12 13 #define SCSCR_TIE (1 << 7) 14 #define SCSCR_RIE (1 << 6) 15 #define SCSCR_TE (1 << 5) 16 #define SCSCR_RE (1 << 4) 17 #define SCSCR_REIE (1 << 3) /* not supported by all parts */ 18 #define SCSCR_TOIE (1 << 2) /* not supported by all parts */ 19 #define SCSCR_CKE1 (1 << 1) 20 #define SCSCR_CKE0 (1 << 0) 21 22 /* SCxSR SCI */ 23 #define SCI_TDRE 0x80 24 #define SCI_RDRF 0x40 25 #define SCI_ORER 0x20 26 #define SCI_FER 0x10 27 #define SCI_PER 0x08 28 #define SCI_TEND 0x04 29 30 #define SCI_DEFAULT_ERROR_MASK (SCI_PER | SCI_FER) 31 32 /* SCxSR SCIF, HSCIF */ 33 #define SCIF_ER 0x0080 34 #define SCIF_TEND 0x0040 35 #define SCIF_TDFE 0x0020 36 #define SCIF_BRK 0x0010 37 #define SCIF_FER 0x0008 38 #define SCIF_PER 0x0004 39 #define SCIF_RDF 0x0002 40 #define SCIF_DR 0x0001 41 42 #define SCIF_DEFAULT_ERROR_MASK (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) 43 44 /* SCSPTR, optional */ 45 #define SCSPTR_RTSIO (1 << 7) 46 #define SCSPTR_CTSIO (1 << 5) 47 #define SCSPTR_SPB2IO (1 << 1) 48 #define SCSPTR_SPB2DT (1 << 0) 49 50 /* HSSRR HSCIF */ 51 #define HSCIF_SRE 0x8000 52 53 enum { 54 SCIx_PROBE_REGTYPE, 55 56 SCIx_SCI_REGTYPE, 57 SCIx_IRDA_REGTYPE, 58 SCIx_SCIFA_REGTYPE, 59 SCIx_SCIFB_REGTYPE, 60 SCIx_SH2_SCIF_FIFODATA_REGTYPE, 61 SCIx_SH3_SCIF_REGTYPE, 62 SCIx_SH4_SCIF_REGTYPE, 63 SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE, 64 SCIx_SH4_SCIF_FIFODATA_REGTYPE, 65 SCIx_SH7705_SCIF_REGTYPE, 66 SCIx_HSCIF_REGTYPE, 67 68 SCIx_NR_REGTYPES, 69 }; 70 71 /* 72 * SCI register subset common for all port types. 73 * Not all registers will exist on all parts. 74 */ 75 enum { 76 SCSMR, SCBRR, SCSCR, SCxSR, 77 SCFCR, SCFDR, SCxTDR, SCxRDR, 78 SCLSR, SCTFDR, SCRFDR, SCSPTR, 79 HSSRR, 80 81 SCIx_NR_REGS, 82 }; 83 84 struct device; 85 86 struct plat_sci_port_ops { 87 void (*init_pins)(struct uart_port *, unsigned int cflag); 88 }; 89 90 /* 91 * Port-specific capabilities 92 */ 93 #define SCIx_HAVE_RTSCTS (1 << 0) 94 95 /* 96 * Platform device specific platform_data struct 97 */ 98 struct plat_sci_port { 99 unsigned int type; /* SCI / SCIF / IRDA / HSCIF */ 100 upf_t flags; /* UPF_* flags */ 101 unsigned long capabilities; /* Port features/capabilities */ 102 103 unsigned int sampling_rate; 104 unsigned int scscr; /* SCSCR initialization */ 105 106 /* 107 * Platform overrides if necessary, defaults otherwise. 108 */ 109 int port_reg; 110 unsigned char regshift; 111 unsigned char regtype; 112 113 struct plat_sci_port_ops *ops; 114 115 unsigned int dma_slave_tx; 116 unsigned int dma_slave_rx; 117 }; 118 119 #endif /* __LINUX_SERIAL_SCI_H */ 120