Release 4.7 drivers/tty/serial/apbuart.h

#ifndef __GRLIB_APBUART_H__

#define __GRLIB_APBUART_H__

#include <asm/io.h>


#define UART_NR		8

static int grlib_apbuart_port_nr;


struct grlib_apbuart_regs_map {
	
u32 data;
	
u32 status;
	
u32 ctrl;
	
u32 scaler;
};


struct amba_prom_registers {
	
unsigned int phys_addr;
	
unsigned int reg_size;
};

/*
 *  The following defines the bits in the APBUART Status Registers.
 */

#define UART_STATUS_DR   0x00000001	
/* Data Ready */

#define UART_STATUS_TSE  0x00000002	
/* TX Send Register Empty */

#define UART_STATUS_THE  0x00000004	
/* TX Hold Register Empty */

#define UART_STATUS_BR   0x00000008	
/* Break Error */

#define UART_STATUS_OE   0x00000010	
/* RX Overrun Error */

#define UART_STATUS_PE   0x00000020	
/* RX Parity Error */

#define UART_STATUS_FE   0x00000040	
/* RX Framing Error */

#define UART_STATUS_ERR  0x00000078	
/* Error Mask */

/*
 *  The following defines the bits in the APBUART Ctrl Registers.
 */

#define UART_CTRL_RE     0x00000001	
/* Receiver enable */

#define UART_CTRL_TE     0x00000002	
/* Transmitter enable */

#define UART_CTRL_RI     0x00000004	
/* Receiver interrupt enable */

#define UART_CTRL_TI     0x00000008	
/* Transmitter irq */

#define UART_CTRL_PS     0x00000010	
/* Parity select */

#define UART_CTRL_PE     0x00000020	
/* Parity enable */

#define UART_CTRL_FL     0x00000040	
/* Flow control enable */

#define UART_CTRL_LB     0x00000080	
/* Loopback enable */


#define APBBASE(port) ((struct grlib_apbuart_regs_map *)((port)->membase))


#define APBBASE_DATA_P(port)	(&(APBBASE(port)->data))

#define APBBASE_STATUS_P(port)	(&(APBBASE(port)->status))

#define APBBASE_CTRL_P(port)	(&(APBBASE(port)->ctrl))

#define APBBASE_SCALAR_P(port)	(&(APBBASE(port)->scaler))


#define UART_GET_CHAR(port)	(__raw_readl(APBBASE_DATA_P(port)))

#define UART_PUT_CHAR(port, v)	(__raw_writel(v, APBBASE_DATA_P(port)))

#define UART_GET_STATUS(port)	(__raw_readl(APBBASE_STATUS_P(port)))

#define UART_PUT_STATUS(port, v)(__raw_writel(v, APBBASE_STATUS_P(port)))

#define UART_GET_CTRL(port)	(__raw_readl(APBBASE_CTRL_P(port)))

#define UART_PUT_CTRL(port, v)	(__raw_writel(v, APBBASE_CTRL_P(port)))

#define UART_GET_SCAL(port)	(__raw_readl(APBBASE_SCALAR_P(port)))

#define UART_PUT_SCAL(port, v)	(__raw_writel(v, APBBASE_SCALAR_P(port)))


#define UART_RX_DATA(s)		(((s) & UART_STATUS_DR) != 0)

#define UART_TX_READY(s)	(((s) & UART_STATUS_THE) != 0)

#endif /* __GRLIB_APBUART_H__ */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
kristoffer glembo
kristoffer glembo
245
100.00%
1
100.00%
Total
245
100.00%
1
100.00%
  
Directory: drivers/tty/serial

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.