10 MBit Ethernet controller. More...

Collaboration diagram for Crystal CS8900A:

Data Structures
struct	_NICINFO
	Network interface controller information structure. More...
Typedefs
typedef struct _NICINFO	NICINFO
	Network interface controller information type.
Functions
void	CSWrite16 (uint32_t addr, uint16_t data)
void	CSWritePP16 (uint16_t addr, uint16_t data)
uint16_t	CSRead16 (uint32_t addr)
uint16_t	CSReadPP16 (uint16_t addr)
void	CSBeginFrame (void)
void	CSEndFrame (void)
void	CSWriteFrameByte (uint8_t data)
void	CSSoftwareWakeup (void)
void	CSSoftwareReset (void)
void	CSNICrx (void *arg)
	NIC receiver thread.
int	cs8900Output (NUTDEVICE dev, NETBUF nb)
	Send Ethernet packet.
int	cs8900Init (NUTDEVICE *dev)
	Initialize Ethernet hardware.
void	CSWrite16 (uint16_t addr, uint16_t data)
uint16_t	CSRead16 (uint16_t addr)
uint32_t	CSReadPP32 (unsigned int addr)
int	CSNicOutput (NUTDEVICE dev, NETBUF nb)
	Send Ethernet packet.
int	CSNicInit (NUTDEVICE *dev)
	Initialize Ethernet Interface.
Variables
volatile uint32_t	cs_base = 0x82000000UL
NUTDEVICE	devCS8900A
	Device information structure.
uint8_t	cs_flags
volatile uint16_t	cs_base = 0x0000

Detailed Description

10 MBit Ethernet controller.

The device driver for the CS8900A is poorly supported. Be prepared that some debugging may be required when using it with the latest Nut/Net release.

Typedef Documentation

typedef struct _NICINFO NICINFO

Network interface controller information type.

Function Documentation

void CSWrite16	(	uint32_t	addr,
		uint16_t	data
	)

References cli, and sei.

Referenced by CSWritePP16().

void CSWritePP16	(	uint16_t	addr,
		uint16_t	data
	)

References cli, CS_PP_DATA0, CS_PP_PTR, and CSWrite16().

Referenced by cs8900Init(), and CSNicInit().

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uint16_t CSRead16 ( uint32_t addr )

References cli, and sei.

Referenced by CSReadPP16().

uint16_t CSReadPP16 ( uint16_t addr )

References cli, CS_PP_DATA0, CS_PP_PTR, and CSRead16().

Referenced by cs8900Init(), CSNicInit(), and CSNICrx().

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void CSBeginFrame ( void )

References cs_flags.

void CSEndFrame ( void )

References cli, CS_DATA_P0, cs_flags, and sei.

void CSWriteFrameByte ( uint8_t data )

References CS_DATA_P0, and cs_flags.

void CSSoftwareWakeup ( void )

References CS_PP_PTR, CS_SELF_CTRL, and NutDelay().

Referenced by cs8900Init(), and CSNicInit().

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void CSSoftwareReset ( void )

References CS_DATA_P0, CS_PP_PTR, and CS_SELF_CTRL.

Referenced by cs8900Init(), and CSNicInit().

void CSNICrx ( void * arg )

NIC receiver thread.

It runs with high priority.

References CS_DATA_P0, CS_RX_EVENT, CSReadPP16(), _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, ifnet::if_recv, _NETBUF::nb_dl, NBAF_DATALINK, NICINFO::ni_rx_packets, NutNetBufAlloc(), NutSleep(), NutThreadSetPriority(), PSTR, and _NBDATA::vp.

Referenced by cs8900Init(), and CSNicInit().

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int cs8900Output	(	NUTDEVICE *	dev,
		NETBUF *	nb
	)

Send Ethernet packet.

Parameters:

dev	Identifies the device to use.
nb	Network buffer structure containing the packet to be sent. The structure must have been allocated by a previous call NutNetBufAlloc().

Returns:: 0 on success, -1 in case of any errors.

References _NUTDEVICE::dev_dcb, NICINFO::ni_tx_packets, PSTR, and rc.

int cs8900Init ( NUTDEVICE * dev )

Initialize Ethernet hardware.

Resets the CS8900 Ethernet controller, initializes all required hardware registers and starts a background thread for incoming Ethernet traffic.

Applications should do not directly call this function. It is automatically executed during during device registration by NutRegisterDevice().

If the network configuration hasn't been set by the application before registering the specified device, this function will call NutNetLoadConfig() to get the MAC address.

Parameters:

dev	Identifies the device to initialize.

References _CONFNET::cd_size, _CONFNET::cdn_mac, confnet, cs_base, CS_IEEE_ADDR, CS_LINE_CTRL, CS_PROD_ID, CS_RX_CTL, CSNICrx(), CSReadPP16(), CSSoftwareReset(), CSSoftwareWakeup(), CSWritePP16(), _NUTDEVICE::dev_base, _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, _NUTDEVICE::dev_name, ifnet::if_mac, memcpy(), memset(), NutDelay(), NutNetLoadConfig(), NutThreadCreate(), and PSTR.

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void CSWrite16	(	uint16_t	addr,
		uint16_t	data
	)

References cli, and sei.

uint16_t CSRead16 ( uint16_t addr )

References cli, and sei.

uint32_t CSReadPP32 ( unsigned int addr )

References cli, CS_PP_DATA0, CS_PP_PTR, and sei.

int CSNicOutput	(	NUTDEVICE *	dev,
		NETBUF *	nb
	)

Send Ethernet packet.

Parameters:

dev	Identifies the device to use.
nb	Network buffer structure containing the packet to be sent. The structure must have been allocated by a previous call NutNetBufAlloc(). This buffer will be automatically released in case of an error.

Returns:: 0 on success, -1 in case of any errors. Errors will automatically release the network buffer structure.

References _NUTDEVICE::dev_dcb, NICINFO::ni_tx_packets, PSTR, and rc.

int CSNicInit ( NUTDEVICE * dev )

Initialize Ethernet Interface.

Applications typically do not use this function, but call NutNetIfConfig().

Parameters:

dev	Identifies the device to initialize. The structure must be properly set.

References _CONFNET::cd_size, _CONFNET::cdn_mac, confnet, cs_base, CS_IEEE_ADDR, CS_LINE_CTRL, CS_PROD_ID, CS_RX_CTL, CSNICrx(), CSReadPP16(), CSSoftwareReset(), CSSoftwareWakeup(), CSWritePP16(), _NUTDEVICE::dev_base, _NUTDEVICE::dev_dcb, _NUTDEVICE::dev_icb, _NUTDEVICE::dev_name, ifnet::if_mac, inb, memcpy(), memset(), NutDelay(), NutNetLoadConfig(), NutThreadCreate(), outb, PSTR, and RESETE.

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Variable Documentation

volatile uint32_t cs_base = 0x82000000UL

Referenced by cs8900Init(), and CSNicInit().

NUTDEVICE devCS8900A

Initial value:

 {
    0,                          
    {'e', 't', 'h', '0', 0, 0, 0, 0, 0},        
    IFTYP_NET,                  
    0,                          
    0,                          
    &ifn_eth0,                  
    &dcb_eth0,                  
    cs8900Init,                 
    0,                          
    0,                          
    0,                          
    0,                          
    0,                          
    0                           
}

Device information structure.

A pointer to this structure must be passed to NutRegisterDevice() to bind this Ethernet device driver to the Nut/OS kernel. An application may then call NutNetIfConfig() with the name eth0 of this driver to initialize the network interface.

uint8_t cs_flags

Referenced by CSBeginFrame(), CSEndFrame(), and CSWriteFrameByte().

volatile uint16_t cs_base = 0x0000

Data Structures

Typedefs

Functions

Variables

Detailed Description

Typedef Documentation

Function Documentation

Variable Documentation