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1 | #ifndef __LINUX_SERIAL_SCI_H |
2 | #define __LINUX_SERIAL_SCI_H | |
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3 | |
4 | #include <linux/serial_core.h> | |
14baf9d7 | 5 | #include <linux/sh_dma.h> |
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6 | |
7 | /* | |
4b084784 | 8 | * Generic header for SuperH (H)SCI(F) (used by sh/sh64 and related parts) |
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9 | */ |
10 | ||
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11 | #define SCIx_NOT_SUPPORTED (-1) |
12 | ||
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13 | #define SCSCR_TIE (1 << 7) |
14 | #define SCSCR_RIE (1 << 6) | |
15 | #define SCSCR_TE (1 << 5) | |
16 | #define SCSCR_RE (1 << 4) | |
f43dc23d | 17 | #define SCSCR_REIE (1 << 3) /* not supported by all parts */ |
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18 | #define SCSCR_TOIE (1 << 2) /* not supported by all parts */ |
19 | #define SCSCR_CKE1 (1 << 1) | |
20 | #define SCSCR_CKE0 (1 << 0) | |
21 | ||
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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 | ||
f303b364 | 32 | /* SCxSR SCIF, HSCIF */ |
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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 | ||
faf02f8f PM |
44 | /* SCSPTR, optional */ |
45 | #define SCSPTR_RTSIO (1 << 7) | |
46 | #define SCSPTR_CTSIO (1 << 5) | |
bbb4ce50 SY |
47 | #define SCSPTR_SPB2IO (1 << 1) |
48 | #define SCSPTR_SPB2DT (1 << 0) | |
faf02f8f | 49 | |
f303b364 UH |
50 | /* HSSRR HSCIF */ |
51 | #define HSCIF_SRE 0x8000 | |
52 | ||
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53 | enum { |
54 | SCIx_PROBE_REGTYPE, | |
55 | ||
56 | SCIx_SCI_REGTYPE, | |
57 | SCIx_IRDA_REGTYPE, | |
58 | SCIx_SCIFA_REGTYPE, | |
59 | SCIx_SCIFB_REGTYPE, | |
3af1f8a4 | 60 | SCIx_SH2_SCIF_FIFODATA_REGTYPE, |
61a6976b PM |
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, | |
f303b364 | 66 | SCIx_HSCIF_REGTYPE, |
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67 | |
68 | SCIx_NR_REGTYPES, | |
69 | }; | |
70 | ||
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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, | |
f303b364 | 79 | HSSRR, |
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80 | |
81 | SCIx_NR_REGS, | |
82 | }; | |
83 | ||
73a19e4c GL |
84 | struct device; |
85 | ||
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86 | struct plat_sci_port_ops { |
87 | void (*init_pins)(struct uart_port *, unsigned int cflag); | |
88 | }; | |
89 | ||
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90 | /* |
91 | * Port-specific capabilities | |
92 | */ | |
93 | #define SCIx_HAVE_RTSCTS (1 << 0) | |
94 | ||
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95 | /* |
96 | * Platform device specific platform_data struct | |
97 | */ | |
98 | struct plat_sci_port { | |
f303b364 | 99 | unsigned int type; /* SCI / SCIF / IRDA / HSCIF */ |
ecd95616 | 100 | upf_t flags; /* UPF_* flags */ |
faf02f8f | 101 | unsigned long capabilities; /* Port features/capabilities */ |
00b9de9c | 102 | |
ec09c5eb | 103 | unsigned int sampling_rate; |
00b9de9c | 104 | unsigned int scscr; /* SCSCR initialization */ |
f43dc23d | 105 | |
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106 | /* |
107 | * Platform overrides if necessary, defaults otherwise. | |
108 | */ | |
514820eb | 109 | int port_reg; |
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110 | unsigned char regshift; |
111 | unsigned char regtype; | |
112 | ||
113 | struct plat_sci_port_ops *ops; | |
514820eb | 114 | |
27bd1075 PM |
115 | unsigned int dma_slave_tx; |
116 | unsigned int dma_slave_rx; | |
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117 | }; |
118 | ||
96de1a8f | 119 | #endif /* __LINUX_SERIAL_SCI_H */ |