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Rev 3577 Rev 3646
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#define RBR_REG     0   /** Receiver Buffer Register. */
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#define RBR_REG     0   /** Receiver Buffer Register. */
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#define IER_REG     1   /** Interrupt Enable Register. */
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#define IER_REG     1   /** Interrupt Enable Register. */
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#define IIR_REG     2   /** Interrupt Ident Register (read). */
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#define IIR_REG     2   /** Interrupt Ident Register (read). */
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#define FCR_REG     2   /** FIFO control register (write). */
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#define FCR_REG     2   /** FIFO control register (write). */
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#define LCR_REG     3   /** Line Control register. */
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#define LCR_REG     3   /** Line Control register. */
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#define MCR_REG     4   /** Modem Control Register. */
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#define LSR_REG     5   /** Line Status Register. */
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#define LSR_REG     5   /** Line Status Register. */
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#define IER_ERBFI   0x01    /** Enable Receive Buffer Full Interrupt. */
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#define IER_ERBFI   0x01    /** Enable Receive Buffer Full Interrupt. */
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#define LCR_DLAB    0x80    /** Divisor Latch Access bit. */
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#define LCR_DLAB    0x80    /** Divisor Latch Access bit. */
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#define MCR_OUT2    0x08    /** OUT2. */
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/** Structure representing the ns16550 device. */
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/** Structure representing the ns16550 device. */
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typedef struct {
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typedef struct {
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    devno_t devno;
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    devno_t devno;
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    volatile ioport_t io_port;  /** Memory mapped registers of the ns16550. */
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    /** Memory mapped registers of the ns16550. */
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    volatile ioport_t io_port;
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} ns16550_t;
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} ns16550_t;
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static inline uint8_t ns16550_rbr_read(ns16550_t *dev)
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static inline uint8_t ns16550_rbr_read(ns16550_t *dev)
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{
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{
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    return inb(dev->io_port+RBR_REG);
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    return inb(dev->io_port + RBR_REG);
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static inline uint8_t ns16550_lsr_read(ns16550_t *dev)
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static inline uint8_t ns16550_lsr_read(ns16550_t *dev)
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{
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{
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    return inb(dev->io_port+LSR_REG);
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    return inb(dev->io_port + LSR_REG);
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}
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}
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static inline uint8_t ns16550_mcr_read(ns16550_t *dev)
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{
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    return inb(dev->io_port + MCR_REG);
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}
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static inline void ns16550_mcr_write(ns16550_t *dev, uint8_t v)
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{
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    outb(dev->io_port + MCR_REG, v);
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}
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */