| 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 */ |