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36 | #define KERN_sparc64_NS16550_H_ |
36 | #define KERN_sparc64_NS16550_H_ |
37 | 37 | ||
38 | #include <arch/types.h> |
38 | #include <arch/types.h> |
39 | #include <arch/drivers/kbd.h> |
39 | #include <arch/drivers/kbd.h> |
40 | 40 | ||
- | 41 | /* NS16550 registers */ |
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41 | #define RBR_REG 0 /** Receiver Buffer Register. */ |
42 | #define RBR_REG 0 /** Receiver Buffer Register. */ |
42 | #define IER_REG 1 /** Interrupt Enable Register. */ |
43 | #define IER_REG 1 /** Interrupt Enable Register. */ |
- | 44 | #define IIR_REG 2 /** Interrupt Ident Register (read). */ |
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- | 45 | #define FCR_REG 2 /** FIFO control register (write). */ |
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- | 46 | #define LCR_REG 3 /** Line Control register. */ |
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43 | #define LSR_REG 5 /** Line Status Register. */ |
47 | #define LSR_REG 5 /** Line Status Register. */ |
44 | 48 | ||
- | 49 | #define IER_ERBFI 0x01 /** Enable Receive Buffer Full Interrupt. */ |
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- | 50 | ||
- | 51 | #define LCR_DLAB 0x80 /** Divisor Latch Access bit. */ |
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- | 52 | ||
45 | static inline uint8_t ns16550_rbr_read(void) |
53 | static inline uint8_t ns16550_rbr_read(void) |
46 | { |
54 | { |
47 | return kbd_virt_address[RBR_REG]; |
55 | return kbd_virt_address[RBR_REG]; |
48 | } |
56 | } |
49 | 57 | ||
Line 55... | Line 63... | ||
55 | static inline void ns16550_ier_write(uint8_t v) |
63 | static inline void ns16550_ier_write(uint8_t v) |
56 | { |
64 | { |
57 | kbd_virt_address[IER_REG] = v; |
65 | kbd_virt_address[IER_REG] = v; |
58 | } |
66 | } |
59 | 67 | ||
- | 68 | static inline uint8_t ns16550_iir_read(void) |
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- | 69 | { |
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- | 70 | return kbd_virt_address[IIR_REG]; |
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- | 71 | } |
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- | 72 | ||
- | 73 | static inline void ns16550_fcr_write(uint8_t v) |
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- | 74 | { |
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- | 75 | kbd_virt_address[FCR_REG] = v; |
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- | 76 | } |
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- | 77 | ||
- | 78 | static inline uint8_t ns16550_lcr_read(void) |
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- | 79 | { |
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- | 80 | return kbd_virt_address[LCR_REG]; |
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- | 81 | } |
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- | 82 | ||
- | 83 | static inline void ns16550_lcr_write(uint8_t v) |
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- | 84 | { |
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- | 85 | kbd_virt_address[LCR_REG] = v; |
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- | 86 | } |
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- | 87 | ||
60 | static inline uint8_t ns16550_lsr_read(void) |
88 | static inline uint8_t ns16550_lsr_read(void) |
61 | { |
89 | { |
62 | return kbd_virt_address[LSR_REG]; |
90 | return kbd_virt_address[LSR_REG]; |
63 | } |
91 | } |
64 | 92 |