1 #ifndef __LINUX_SERIAL_SCI_H 2 #define __LINUX_SERIAL_SCI_H 3 4 #include <linux/bitops.h> 5 #include <linux/serial_core.h> 6 #include <linux/sh_dma.h> 7 8 /* 9 * Generic header for SuperH (H)SCI(F) (used by sh/sh64 and related parts) 10 */ 11 12 #define SCIx_NOT_SUPPORTED (-1) 13 14 /* Serial Control Register (@ = not supported by all parts) */ 15 #define SCSCR_TIE BIT(7) /* Transmit Interrupt Enable */ 16 #define SCSCR_RIE BIT(6) /* Receive Interrupt Enable */ 17 #define SCSCR_TE BIT(5) /* Transmit Enable */ 18 #define SCSCR_RE BIT(4) /* Receive Enable */ 19 #define SCSCR_REIE BIT(3) /* Receive Error Interrupt Enable @ */ 20 #define SCSCR_TOIE BIT(2) /* Timeout Interrupt Enable @ */ 21 #define SCSCR_CKE1 BIT(1) /* Clock Enable 1 */ 22 #define SCSCR_CKE0 BIT(0) /* Clock Enable 0 */ 23 24 25 enum { 26 SCIx_PROBE_REGTYPE, 27 28 SCIx_SCI_REGTYPE, 29 SCIx_IRDA_REGTYPE, 30 SCIx_SCIFA_REGTYPE, 31 SCIx_SCIFB_REGTYPE, 32 SCIx_SH2_SCIF_FIFODATA_REGTYPE, 33 SCIx_SH3_SCIF_REGTYPE, 34 SCIx_SH4_SCIF_REGTYPE, 35 SCIx_SH4_SCIF_BRG_REGTYPE, 36 SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE, 37 SCIx_SH4_SCIF_FIFODATA_REGTYPE, 38 SCIx_SH7705_SCIF_REGTYPE, 39 SCIx_HSCIF_REGTYPE, 40 41 SCIx_NR_REGTYPES, 42 }; 43 44 struct device; 45 46 struct plat_sci_port_ops { 47 void (*init_pins)(struct uart_port *, unsigned int cflag); 48 }; 49 50 /* 51 * Port-specific capabilities 52 */ 53 #define SCIx_HAVE_RTSCTS BIT(0) 54 55 /* 56 * Platform device specific platform_data struct 57 */ 58 struct plat_sci_port { 59 unsigned int type; /* SCI / SCIF / IRDA / HSCIF */ 60 upf_t flags; /* UPF_* flags */ 61 unsigned long capabilities; /* Port features/capabilities */ 62 63 unsigned int sampling_rate; 64 unsigned int scscr; /* SCSCR initialization */ 65 66 /* 67 * Platform overrides if necessary, defaults otherwise. 68 */ 69 int port_reg; 70 unsigned char regshift; 71 unsigned char regtype; 72 73 struct plat_sci_port_ops *ops; 74 75 unsigned int dma_slave_tx; 76 unsigned int dma_slave_rx; 77 }; 78 79 #endif /* __LINUX_SERIAL_SCI_H */ 80