udbg_16550.c File Reference

#include <linux/types.h>
#include <asm/udbg.h>
#include <asm/io.h>
#include <asm/reg_a2.h>

Go to the source code of this file.

Data Structures
struct	NS16550

Macros
#define	thr   rbr
#define	iir   fcr
#define	dll   rbr
#define	dlm   ier
#define	dlab   lcr
#define	LSR_DR   0x01 /* Data ready */
#define	LSR_OE   0x02 /* Overrun */
#define	LSR_PE   0x04 /* Parity error */
#define	LSR_FE   0x08 /* Framing error */
#define	LSR_BI   0x10 /* Break */
#define	LSR_THRE   0x20 /* Xmit holding register empty */
#define	LSR_TEMT   0x40 /* Xmitter empty */
#define	LSR_ERR   0x80 /* Error */
#define	LCR_DLAB   0x80

Functions
u8	real_readb (volatile u8 __iomem *addr)
void	real_writeb (u8 data, volatile u8 __iomem *addr)
u8	real_205_readb (volatile u8 __iomem *addr)
void	real_205_writeb (u8 data, volatile u8 __iomem *addr)
void	udbg_init_uart (void __iomem *comport, unsigned int speed, unsigned int clock)
unsigned int	udbg_probe_uart_speed (void __iomem *comport, unsigned int clock)

Macro Definition Documentation

#define dlab   lcr

Definition at line 37 of file udbg_16550.c.

#define dll   rbr

Definition at line 35 of file udbg_16550.c.

#define dlm   ier

Definition at line 36 of file udbg_16550.c.

#define iir   fcr

Definition at line 34 of file udbg_16550.c.

#define LCR_DLAB   0x80

Definition at line 48 of file udbg_16550.c.

#define LSR_BI   0x10 /* Break */

Definition at line 43 of file udbg_16550.c.

#define LSR_DR   0x01 /* Data ready */

Definition at line 39 of file udbg_16550.c.

#define LSR_ERR   0x80 /* Error */

Definition at line 46 of file udbg_16550.c.

#define LSR_FE   0x08 /* Framing error */

Definition at line 42 of file udbg_16550.c.

#define LSR_OE   0x02 /* Overrun */

Definition at line 40 of file udbg_16550.c.

#define LSR_PE   0x04 /* Parity error */

Definition at line 41 of file udbg_16550.c.

#define LSR_TEMT   0x40 /* Xmitter empty */

Definition at line 45 of file udbg_16550.c.

#define LSR_THRE   0x20 /* Xmit holding register empty */

Definition at line 44 of file udbg_16550.c.

#define thr   rbr

Definition at line 33 of file udbg_16550.c.

Function Documentation

u8 real_205_readb

(

volatile u8 __iomem *

addr

)

void real_205_writeb	(	u8	data,
		volatile u8 __iomem *	addr
	)

u8 real_readb

(

volatile u8 __iomem *

addr

)

void real_writeb	(	u8	data,
		volatile u8 __iomem *	addr
	)

void udbg_init_uart	(	void __iomem *	comport,
		unsigned int	speed,
		unsigned int	clock
	)

Definition at line 91 of file udbg_16550.c.

unsigned int udbg_probe_uart_speed	(	void __iomem *	comport,
		unsigned int	clock
	)

Definition at line 125 of file udbg_16550.c.