#include <string.h>
#include <sys/atom.h>
#include <sys/heap.h>
#include <sys/event.h>
#include <sys/timer.h>
#include <sys/device.h>
#include <dev/irqreg.h>
#include <dev/tlc16c550.h>
#include <fcntl.h>
#include <stdio.h>

Include dependency graph for tlc16c550.c:

Data Structures
struct	tagIRQDEFS
#define	ACE_RBR_OFS 0
#define	ACE_THR_OFS 0
#define	ACE_DLL_OFS 0
#define	ACE_DLM_OFS 1
#define	ACE_IER_OFS 1
#define	ACE_FCR_OFS 2
#define	ACE_IIR_OFS 2
#define	ACE_LCR_OFS 3
#define	ACE_MCR_OFS 4
#define	ACE_LSR_OFS 5
#define	ACE_MSR_OFS 6
#define	ACE_SRC_OFS 7
#define	IER_RDA_MSK 0x01
#define	IER_THE_MSK 0x02
#define	IER_LST_MSK 0x04
#define	IER_MST_MSK 0x08
#define	FCR_ENABLE 0x01
#define	FCR_PURGE_I 0x02
#define	FCR_PURGE_O 0x04
#define	FCR_LEVEL_1 0x00
#define	FCR_LEVEL_4 0x40
#define	FCR_LEVEL_8 0x80
#define	FCR_LEVEL_14 0xc0
#define	IIR_MST_MSK 0x00
#define	IIR_TXE_MSK 0x02
#define	IIR_RDA_MSK 0x04
#define	IIR_TDA_MSK 0x0c
#define	IIR_LST_MSK 0x06
#define	IIR_NON_MSK 0x01
#define	IIR_FIFO_MSK 0xc0
#define	LCR_WS0_MSK 0x01
#define	LCR_WS1_MSK 0x02
#define	LCR_STB_MSK 0x04
#define	LCR_PEN_MSK 0x08
#define	LCR_PRE_MSK 0x10
#define	LCR_PRS_MSK 0x20
#define	LCR_BRK_MSK 0x40
#define	LCR_ENB_MSK 0x80
#define	MCR_DTR_MSK 0x01
#define	MCR_RTS_MSK 0x02
#define	MCR_GP1_MSK 0x04
#define	MCR_GP2_MSK 0x08
#define	MCR_LOP_MSK 0x10
#define	LSR_RDR_MSK 0x01
#define	LSR_OVR_MSK 0x02
#define	LSR_PER_MSK 0x04
#define	LSR_FER_MSK 0x08
#define	LSR_BDT_MSK 0x10
#define	LSR_THE_MSK 0x20
#define	LSR_TXE_MSK 0x40
#define	LSR_EIF_MSK 0x80
#define	MSR_DCTS_MSK 0x01
#define	MSR_DDSR_MSK 0x02
#define	MSR_DRI_MSK 0x04
#define	MSR_DDCD_MSK 0x08
#define	MSR_CTS_MSK 0x10
#define	MSR_DSR_MSK 0x20
#define	MSR_RI_MSK 0x40
#define	MSR_DCD_MSK 0x80
typedef struct tagIRQDEFS	IRQDEFS
int	AceInput (NUTDEVICE *dev)
	Wait for input.
int	AceOutput (NUTDEVICE *dev)
	Initiate output.
int	AceFlush (NUTDEVICE *dev)
	Wait for output buffer empty.
int	AceIOCtl (NUTDEVICE dev, int req, void conf)
	Perform ACE control functions.
int	AceInit (NUTDEVICE *dev)
	Initialize on chip ACE device.
int	AceRead (NUTFILE fp, void buffer, int size)
	Read from device.
int	AcePut (NUTDEVICE dev, const void buffer, int len, int pflg)
	Write to device.
int	AceWrite (NUTFILE fp, const void buffer, int len)
int	AceWrite_P (NUTFILE *fp, PGM_P buffer, int len)
NUTFILE *	AceOpen (NUTDEVICE dev, const char name, int mode, int acc)
	Open a device or file.
int	AceClose (NUTFILE *fp)
	Close a device or file.
long	AceSize (NUTFILE *fp)
	Request file size.

Define Documentation

#define ACE_RBR_OFS 0

\

#define ACE_THR_OFS 0

Referenced by AceOutput().

#define ACE_DLL_OFS 0

Referenced by AceIOCtl().

#define ACE_DLM_OFS 1

Referenced by AceIOCtl().

#define ACE_IER_OFS 1

#define ACE_FCR_OFS 2

Referenced by AceIOCtl().

#define ACE_IIR_OFS 2

#define ACE_LCR_OFS 3

Referenced by AceIOCtl().

#define ACE_MCR_OFS 4

#define ACE_LSR_OFS 5

#define ACE_MSR_OFS 6

#define ACE_SRC_OFS 7

#define IER_RDA_MSK 0x01

#define IER_THE_MSK 0x02

#define IER_LST_MSK 0x04

#define IER_MST_MSK 0x08

#define FCR_ENABLE 0x01

Referenced by AceIOCtl().

#define FCR_PURGE_I 0x02

Referenced by AceIOCtl().

#define FCR_PURGE_O 0x04

Referenced by AceIOCtl().

#define FCR_LEVEL_1 0x00

Referenced by AceIOCtl().

#define FCR_LEVEL_4 0x40

Referenced by AceIOCtl().

#define FCR_LEVEL_8 0x80

Referenced by AceIOCtl().

#define FCR_LEVEL_14 0xc0

Referenced by AceIOCtl().

#define IIR_MST_MSK 0x00

#define IIR_TXE_MSK 0x02

#define IIR_RDA_MSK 0x04

#define IIR_TDA_MSK 0x0c

#define IIR_LST_MSK 0x06

#define IIR_NON_MSK 0x01

#define IIR_FIFO_MSK 0xc0

#define LCR_WS0_MSK 0x01

Referenced by AceIOCtl().

#define LCR_WS1_MSK 0x02

Referenced by AceIOCtl().

#define LCR_STB_MSK 0x04

Referenced by AceIOCtl().

#define LCR_PEN_MSK 0x08

Referenced by AceIOCtl().

#define LCR_PRE_MSK 0x10

Referenced by AceIOCtl().

#define LCR_PRS_MSK 0x20

Referenced by AceIOCtl().

#define LCR_BRK_MSK 0x40

#define LCR_ENB_MSK 0x80

Referenced by AceIOCtl().

#define MCR_DTR_MSK 0x01

#define MCR_RTS_MSK 0x02

#define MCR_GP1_MSK 0x04

#define MCR_GP2_MSK 0x08

#define MCR_LOP_MSK 0x10

#define LSR_RDR_MSK 0x01

#define LSR_OVR_MSK 0x02

#define LSR_PER_MSK 0x04

#define LSR_FER_MSK 0x08

#define LSR_BDT_MSK 0x10

#define LSR_THE_MSK 0x20

#define LSR_TXE_MSK 0x40

#define LSR_EIF_MSK 0x80

#define MSR_DCTS_MSK 0x01

#define MSR_DDSR_MSK 0x02

#define MSR_DRI_MSK 0x04

#define MSR_DDCD_MSK 0x08

#define MSR_CTS_MSK 0x10

#define MSR_DSR_MSK 0x20

#define MSR_RI_MSK 0x40

#define MSR_DCD_MSK 0x80

Typedef Documentation

typedef struct tagIRQDEFS IRQDEFS

Function Documentation

int AceInput ( NUTDEVICE * dev )

Wait for input.

This function checks the input buffer for any data. If the buffer is empty, the calling thread will be blocked until at least one new character is received or a timeout occurs.

Parameters:

dev	Indicates the ACE device.

Returns:: 0 on success, -1 on timeout.

References _ACEDCB::dcb_rtimeout, _ACEDCB::dcb_rx_rdy, _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, _IFSTREAM::if_rd_idx, _IFSTREAM::if_rx_idx, NutEventWaitNext(), and rc.

Referenced by AceInit(), and AceRead().

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int AceOutput ( NUTDEVICE * dev )

Initiate output.

This function checks the output buffer for any data. If the buffer contains at least one character, the transmitter is started, if not already running. The function returns immediately, without waiting for the character being completely transmitted. Any remaining characters in the output buffer are transmitted in the background.

Parameters:

dev	Indicates the ACE device.

Returns:: 0 on success, -1 otherwise.

References ACE_MF_HALFDUPLEX, ACE_THR_OFS, _ACEDCB::dcb_modeflags, _ACEDCB::dcb_wfifo, _NUTDEVICE::dev_base, _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, _IFSTREAM::if_tx_act, _IFSTREAM::if_tx_buf, _IFSTREAM::if_tx_idx, and _IFSTREAM::if_wr_idx.

Referenced by AceFlush(), and AceInit().

int AceFlush ( NUTDEVICE * dev )

Wait for output buffer empty.

If the output buffer contains any data, the calling thread is suspended until all data has been transmitted.

Parameters:

dev	Indicates the ACE device.

Returns:: 0 on success, -1 otherwise.

References AceOutput(), _ACEDCB::dcb_tx_rdy, _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, _IFSTREAM::if_tx_idx, _IFSTREAM::if_wr_idx, and NutEventWaitNext().

Referenced by AceInit(), and AcePut().

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int AceIOCtl	(	NUTDEVICE *	dev,
		int	req,
		void *	conf
	)

Perform ACE control functions.

Parameters:

dev	Identifies the device that receives the device-control function.
req	Requested control function. May be set to one of the following constants: ACE_SETSPEED, conf points to an uint32_t value containing the baudrate. ACE_GETSPEED, conf points to an uint32_t value receiving the current baudrate. ACE_SETDATABITS, conf points to an uint32_t value containing the number of data bits, 5, 6, 7 or 8. ACE_GETDATABITS, conf points to an uint32_t value receiving the number of data bits, 5, 6, 7 or 8. ACE_SETPARITY, conf points to an uint32_t value containing the parity, 0 (no), 1 (odd) or 2 (even). ACE_GETPARITY, conf points to an uint32_t value receiving the parity, 0 (no), 1 (odd) or 2 (even). ACE_SETSTOPBITS, conf points to an uint32_t value containing the number of stop bits 1 or 2. ACE_GETSTOPBITS, conf points to an uint32_t value receiving the number of stop bits 1 or 2. ACE_SETSTATUS ACE_GETSTATUS ACE_SETREADTIMEOUT, conf points to an uint32_t value containing the read timeout. ACE_GETREADTIMEOUT, conf points to an uint32_t value receiving the read timeout. ACE_SETWRITETIMEOUT, conf points to an uint32_t value containing the write timeout. ACE_GETWRITETIMEOUT, conf points to an uint32_t value receiving the write timeout. ACE_SETLOCALECHO, conf points to an uint32_t value containing 0 (off) or 1 (on). ACE_GETLOCALECHO, conf points to an uint32_t value receiving 0 (off) or 1 (on). ACE_SETFLOWCONTROL, conf points to an uint32_t value containing combined ACE_FCR_ values. ACE_GETFLOWCONTROL, conf points to an uint32_t value containing receiving ACE_FCR_ values. ACE_SETCOOKEDMODE, conf points to an uint32_t value containing 0 (off) or 1 (on). ACE_GETCOOKEDMODE, conf points to an uint32_t value receiving 0 (off) or 1 (on).
conf	Points to a buffer that contains any data required for the given control function or receives data from that function.

Returns:: 0 on success, -1 otherwise.

Warning:: Timeout values are given in milliseconds and are limited to the granularity of the system timer. To disable timeout, set the parameter to NUT_WAIT_INFINITE.

References ACE_CLOCK, ACE_DLL_OFS, ACE_DLM_OFS, ACE_FCR_OFS, ACE_FIFO_SIZE, ACE_GETCOOKEDMODE, ACE_GETDATABITS, ACE_GETFIFO, ACE_GETFLOWCONTROL, ACE_GETLOCALECHO, ACE_GETPARITY, ACE_GETREADTIMEOUT, ACE_GETSPEED, ACE_GETSTATUS, ACE_GETSTOPBITS, ACE_GETWRITETIMEOUT, ACE_LCR_OFS, ACE_MF_COOKEDMODE, ACE_MF_HALFDUPLEX, ACE_MF_LOCALECHO, ACE_SETCOOKEDMODE, ACE_SETDATABITS, ACE_SETFIFO, ACE_SETFLOWCONTROL, ACE_SETLOCALECHO, ACE_SETPARITY, ACE_SETREADTIMEOUT, ACE_SETSPEED, ACE_SETSTATUS, ACE_SETSTOPBITS, ACE_SETWRITETIMEOUT, _ACEDCB::dcb_modeflags, _ACEDCB::dcb_rfifo, _ACEDCB::dcb_rtimeout, _ACEDCB::dcb_tx_rdy, _ACEDCB::dcb_wfifo, _ACEDCB::dcb_wtimeout, _NUTDEVICE::dev_base, _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, FCR_ENABLE, FCR_LEVEL_1, FCR_LEVEL_14, FCR_LEVEL_4, FCR_LEVEL_8, FCR_PURGE_I, FCR_PURGE_O, _IFSTREAM::if_tx_act, _IFSTREAM::if_tx_idx, _IFSTREAM::if_wr_idx, LCR_ENB_MSK, LCR_PEN_MSK, LCR_PRE_MSK, LCR_PRS_MSK, LCR_STB_MSK, LCR_WS0_MSK, LCR_WS1_MSK, NutEventPostAsync(), and rc.

Referenced by AceInit().

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int AceInit ( NUTDEVICE * dev )

Initialize on chip ACE device.

Prepares the device for subsequent reading or writing. Enables ACE transmitter and receiver interrupts.

Parameters:

dev	Identifies the device to initialize.

Returns:: 0 on success, -1 otherwise.

References ACE_MF_NOBUFFER, ACE_SETDATABITS, ACE_SETFLOWCONTROL, ACE_SETPARITY, ACE_SETSPEED, ACE_SETSTOPBITS, AceFlush(), AceInput(), AceIOCtl(), AceOutput(), _ACEDCB::dcb_modeflags, _ACEDCB::dcb_rfifo, _ACEDCB::dcb_wfifo, _NUTDEVICE::dev_base, _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, _NUTDEVICE::dev_irq, _ACEDCB::dev_next, _NUTDEVICE::dev_type, _IFSTREAM::if_flush, _IFSTREAM::if_input, _IFSTREAM::if_output, IFTYP_STREAM, memset(), tagIRQDEFS::nMask, NULL, NutRegisterIrqHandler(), tagIRQDEFS::pnIrqMskPort, tagIRQDEFS::pvIrq, sbi, and sig_OUTPUT_COMPARE3A.

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int AceRead	(	NUTFILE *	fp,
		void *	buffer,
		int	size
	)

Read from device.

References ACE_MF_COOKEDMODE, AceInput(), _ACEDCB::dcb_modeflags, _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, _IFSTREAM::if_last_eol, _IFSTREAM::if_rd_idx, _IFSTREAM::if_rx_buf, _IFSTREAM::if_rx_idx, _NUTFILE::nf_dev, and rc.

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int AcePut	(	NUTDEVICE *	dev,
		const void *	buffer,
		int	len,
		int	pflg
	)

Write to device.

References ACE_MF_COOKEDMODE, ACE_MF_LINEBUFFER, ACE_MF_NOBUFFER, AceFlush(), _ACEDCB::dcb_modeflags, _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, _IFSTREAM::if_tx_buf, _IFSTREAM::if_tx_idx, _IFSTREAM::if_wr_idx, PRG_RDB, and rc.

Referenced by AceWrite(), and AceWrite_P().

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int AceWrite	(	NUTFILE *	fp,
		const void *	buffer,
		int	len
	)

References AcePut(), and _NUTFILE::nf_dev.

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int AceWrite_P	(	NUTFILE *	fp,
		PGM_P	buffer,
		int	len
	)

References AcePut(), and _NUTFILE::nf_dev.

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NUTFILE* AceOpen	(	NUTDEVICE *	dev,
		const char *	name,
		int	mode,
		int	acc
	)

Open a device or file.

References _O_BINARY, ACE_MF_COOKEDMODE, _ACEDCB::dcb_modeflags, _NUTDEVICE::dev_dcb, _NUTFILE::nf_dev, _NUTFILE::nf_fcb, _NUTFILE::nf_next, NUTFILE_EOF, and NutHeapAlloc.

int AceClose ( NUTFILE * fp )

Close a device or file.

References NutHeapFree.

long AceSize ( NUTFILE * fp )

Request file size.

References _NUTDEVICE::dev_icb, _IFSTREAM::if_rd_idx, _IFSTREAM::if_rx_idx, and _NUTFILE::nf_dev.

Data Structures

Define Documentation

Typedef Documentation

Function Documentation