WebSVN – HelenOS – Diff – /trunk/kernel/genarch/include/kbd/ns16550.h



#define RBR_REG     0   /** Receiver Buffer Register. */
#define IER_REG     1   /** Interrupt Enable Register. */
#define IIR_REG     2   /** Interrupt Ident Register (read). */
#define FCR_REG     2   /** FIFO control register (write). */
#define LCR_REG     3   /** Line Control register. */
#define MCR_REG     4   /** Modem Control Register. */
#define LSR_REG     5   /** Line Status Register. */
 
#define IER_ERBFI   0x01    /** Enable Receive Buffer Full Interrupt. */
 
#define LCR_DLAB    0x80    /** Divisor Latch Access bit. */
 
#define MCR_OUT2    0x08    /** OUT2. */
 
/** Structure representing the ns16550 device. */
typedef struct {
    devno_t devno;
    /** Memory mapped registers of the ns16550. */
    volatile ioport_t io_port;
} ns16550_t;
 
static inline uint8_t ns16550_rbr_read(ns16550_t *dev)
{
    return inb(dev->io_port + RBR_REG);
}
static inline void ns16550_rbr_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + RBR_REG, v);
}
 
static inline uint8_t ns16550_ier_read(ns16550_t *dev)
{
    return inb(dev->io_port + IER_REG);
}
 
static inline void ns16550_ier_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + IER_REG, v);
}
 
static inline uint8_t ns16550_iir_read(ns16550_t *dev)
{
    return inb(dev->io_port + IIR_REG);
}
 
static inline void ns16550_fcr_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + FCR_REG, v);
}
 
static inline uint8_t ns16550_lcr_read(ns16550_t *dev)
{
    return inb(dev->io_port + LCR_REG);
}
 
static inline void ns16550_lcr_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + LCR_REG, v);
}
 
static inline uint8_t ns16550_lsr_read(ns16550_t *dev)
{
    return inb(dev->io_port + LSR_REG);
}
 
static inline uint8_t ns16550_mcr_read(ns16550_t *dev)
{
    return inb(dev->io_port + MCR_REG);
}
 
static inline void ns16550_mcr_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + MCR_REG, v);
}
 
#endif
 
/** @}
 */

Rev 3577	Rev 3646
Line 56...	Line 56...
56	#define RBR_REG 0 /** Receiver Buffer Register. */	56	#define RBR_REG 0 /** Receiver Buffer Register. */
57	#define IER_REG 1 /** Interrupt Enable Register. */	57	#define IER_REG 1 /** Interrupt Enable Register. */
58	#define IIR_REG 2 /** Interrupt Ident Register (read). */	58	#define IIR_REG 2 /** Interrupt Ident Register (read). */
59	#define FCR_REG 2 /** FIFO control register (write). */	59	#define FCR_REG 2 /** FIFO control register (write). */
60	#define LCR_REG 3 /** Line Control register. */	60	#define LCR_REG 3 /** Line Control register. */
-		61	#define MCR_REG 4 /** Modem Control Register. */
61	#define LSR_REG 5 /** Line Status Register. */	62	#define LSR_REG 5 /** Line Status Register. */
62		63
63	#define IER_ERBFI 0x01 /** Enable Receive Buffer Full Interrupt. */	64	#define IER_ERBFI 0x01 /** Enable Receive Buffer Full Interrupt. */
64		65
65	#define LCR_DLAB 0x80 /** Divisor Latch Access bit. */	66	#define LCR_DLAB 0x80 /** Divisor Latch Access bit. */
66		67
-		68	#define MCR_OUT2 0x08 /** OUT2. */
-		69
67	/** Structure representing the ns16550 device. */	70	/** Structure representing the ns16550 device. */
68	typedef struct {	71	typedef struct {
69	devno_t devno;	72	devno_t devno;
70	volatile ioport_t io_port; /** Memory mapped registers of the ns16550. */	73	/** Memory mapped registers of the ns16550. */
-		74	volatile ioport_t io_port;
71	} ns16550_t;	75	} ns16550_t;
72		76
73	static inline uint8_t ns16550_rbr_read(ns16550_t *dev)	77	static inline uint8_t ns16550_rbr_read(ns16550_t *dev)
74	{	78	{
75	return inb(dev->io_port+RBR_REG);	79	return inb(dev->io_port + RBR_REG);
76	}	80	}
77	static inline void ns16550_rbr_write(ns16550_t *dev, uint8_t v)	81	static inline void ns16550_rbr_write(ns16550_t *dev, uint8_t v)
78	{	82	{
79	outb(dev->io_port+RBR_REG,v);	83	outb(dev->io_port + RBR_REG, v);
80	}	84	}
81		85
82	static inline uint8_t ns16550_ier_read(ns16550_t *dev)	86	static inline uint8_t ns16550_ier_read(ns16550_t *dev)
83	{	87	{
84	return inb(dev->io_port+IER_REG);	88	return inb(dev->io_port + IER_REG);
85	}	89	}
86		90
87	static inline void ns16550_ier_write(ns16550_t *dev, uint8_t v)	91	static inline void ns16550_ier_write(ns16550_t *dev, uint8_t v)
88	{	92	{
89	outb(dev->io_port+IER_REG,v);	93	outb(dev->io_port + IER_REG, v);
90	}	94	}
91		95
92	static inline uint8_t ns16550_iir_read(ns16550_t *dev)	96	static inline uint8_t ns16550_iir_read(ns16550_t *dev)
93	{	97	{
94	return inb(dev->io_port+IIR_REG);	98	return inb(dev->io_port + IIR_REG);
95	}	99	}
96		100
97	static inline void ns16550_fcr_write(ns16550_t *dev, uint8_t v)	101	static inline void ns16550_fcr_write(ns16550_t *dev, uint8_t v)
98	{	102	{
99	outb(dev->io_port+FCR_REG,v);	103	outb(dev->io_port + FCR_REG, v);
100	}	104	}
101		105
102	static inline uint8_t ns16550_lcr_read(ns16550_t *dev)	106	static inline uint8_t ns16550_lcr_read(ns16550_t *dev)
103	{	107	{
104	return inb(dev->io_port+LCR_REG);	108	return inb(dev->io_port + LCR_REG);
105	}	109	}
106		110
107	static inline void ns16550_lcr_write(ns16550_t *dev, uint8_t v)	111	static inline void ns16550_lcr_write(ns16550_t *dev, uint8_t v)
108	{	112	{
109	outb(dev->io_port+LCR_REG,v);	113	outb(dev->io_port + LCR_REG, v);
110	}	114	}
111		115
112	static inline uint8_t ns16550_lsr_read(ns16550_t *dev)	116	static inline uint8_t ns16550_lsr_read(ns16550_t *dev)
113	{	117	{
114	return inb(dev->io_port+LSR_REG);	118	return inb(dev->io_port + LSR_REG);
115	}	119	}
116		120
-		121	static inline uint8_t ns16550_mcr_read(ns16550_t *dev)
-		122	{
-		123	return inb(dev->io_port + MCR_REG);
-		124	}
117		125
-		126	static inline void ns16550_mcr_write(ns16550_t *dev, uint8_t v)
-		127	{
-		128	outb(dev->io_port + MCR_REG, v);
-		129	}
118		130
119	#endif	131	#endif
120		132
121	/** @}	133	/** @}
122	*/	134	*/

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(root)/trunk/kernel/genarch/include/kbd/ns16550.h – Rev 3577 → 3646