38,15 → 38,16 |
#define KERN_NS16550_H_ |
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#include <console/chardev.h> |
#include <ddi/irq.h> |
#include <ipc/irq.h> |
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extern void ns16550_init(devno_t devno, inr_t inr, uintptr_t vaddr); |
extern void ns16550_init(devno_t, uintptr_t, inr_t, cir_t, void *); |
extern void ns16550_poll(void); |
extern void ns16550_grab(void); |
extern void ns16550_release(void); |
extern char ns16550_key_read(chardev_t *d); |
extern char ns16550_key_read(chardev_t *); |
extern irq_ownership_t ns16550_claim(void); |
extern void ns16550_irq_handler(irq_t *irq, void *arg, ...); |
extern void ns16550_irq_handler(irq_t *, void *, ...); |
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#include <arch/types.h> |
#ifndef ia64 |
58,6 → 59,7 |
#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. */ |
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#define IER_ERBFI 0x01 /** Enable Receive Buffer Full Interrupt. */ |
64,57 → 66,68 |
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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. */ |
typedef struct { |
devno_t devno; |
volatile ioport_t io_port; /** Memory mapped registers of the ns16550. */ |
/** Memory mapped registers of the ns16550. */ |
volatile ioport_t io_port; |
} ns16550_t; |
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static inline uint8_t ns16550_rbr_read(ns16550_t *dev) |
{ |
return inb(dev->io_port+RBR_REG); |
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); |
outb(dev->io_port + RBR_REG, v); |
} |
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static inline uint8_t ns16550_ier_read(ns16550_t *dev) |
{ |
return inb(dev->io_port+IER_REG); |
return inb(dev->io_port + IER_REG); |
} |
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static inline void ns16550_ier_write(ns16550_t *dev, uint8_t v) |
{ |
outb(dev->io_port+IER_REG,v); |
outb(dev->io_port + IER_REG, v); |
} |
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static inline uint8_t ns16550_iir_read(ns16550_t *dev) |
{ |
return inb(dev->io_port+IIR_REG); |
return inb(dev->io_port + IIR_REG); |
} |
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static inline void ns16550_fcr_write(ns16550_t *dev, uint8_t v) |
{ |
outb(dev->io_port+FCR_REG,v); |
outb(dev->io_port + FCR_REG, v); |
} |
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static inline uint8_t ns16550_lcr_read(ns16550_t *dev) |
{ |
return inb(dev->io_port+LCR_REG); |
return inb(dev->io_port + LCR_REG); |
} |
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static inline void ns16550_lcr_write(ns16550_t *dev, uint8_t v) |
{ |
outb(dev->io_port+LCR_REG,v); |
outb(dev->io_port + LCR_REG, v); |
} |
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static inline uint8_t ns16550_lsr_read(ns16550_t *dev) |
{ |
return inb(dev->io_port+LSR_REG); |
return inb(dev->io_port + LSR_REG); |
} |
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static inline uint8_t ns16550_mcr_read(ns16550_t *dev) |
{ |
return inb(dev->io_port + MCR_REG); |
} |
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static inline void ns16550_mcr_write(ns16550_t *dev, uint8_t v) |
{ |
outb(dev->io_port + MCR_REG, v); |
} |
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#endif |
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