Content-type: text/html Man page of csx_ModifyWindow

csx_ModifyWindow

Section: Kernel Functions for Drivers (9F)
Updated: 19 Jul 1996
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NAME

csx_ModifyWindow - modify window attributes  

SYNOPSIS

#include <sys/pccard.h> 

int32_t csx_ModifyWindow(window_handle_t wh, modify_win_t *mw);  

INTERFACE LEVEL

Solaris DDI Specific (Solaris DDI)  

PARAMETERS

wh Window handle returned from csx_RequestWindow(9F).

mw Pointer to a modify_win_t structure.

 

DESCRIPTION

This function modifies the attributes of a window allocated by the csx_RequestWindow(9F) function.

Only some of the window attributes or the access speed field may be modified by this request. The csx_MapMemPage(9F) function is also used to set the offset into PC Card memory to be mapped into system memory for paged windows. The csx_RequestWindow(9F) and csx_ReleaseWindow(9F) functions must be used to change the window base or size.  

STRUCTURE MEMBERS

The structure members of modify_win_t are:


uint32_t       Attributes;          /* window flags */
uint32_t       AccessSpeed;         /* window access speed */

The fields are defined as follows:

Attributes This field is bit-mapped and defined as follows:

WIN_MEMORY_TYPE_CM

Window points to Common Memory area. Set this to map the window to Common Memory.

WIN_MEMORY_TYPE_AM

Window points to Attribute Memory area. Set this to map the window to Attribute Memory.

WIN_ENABLE

Enable Window. The client must set this to enable the window.

WIN_ACCESS_SPEED_VALID

AccessSpeed valid. The client must set this when the AccessSpeed field has a value that the client wants set for the window.

AccessSpeed The bit definitions for this field use the format of the extended speed byte of the Device ID tuple. If the mantissa is 0 (noted as reserved in the PC Card 95 Standard), the lower bits are a binary code representing a speed from the list below. Numbers in the first column are codes; items in the second column are speeds.

0 Reserved: do not use

1 250 nsec

2 200 nsec

3 150 nsec

4 100 nsec

5 - 7 Reserved: do not use

It is recommended that clients use the csx_ConvertSpeed(9F) function to generate the appropriate AccessSpeed values rather than manually perturbing the AccessSpeed field.

 

RETURN VALUES

"small and bold">CS_SUCCESS Successful operation.

CS_BAD_HANDLE Window handle is invalid.

CS_NO_CARD No PC Card in socket.

CS_BAD_OFFSET Error getting/setting window hardware parameters.

CS_BAD_WINDOW Error getting/setting window hardware parameters.

CS_BAD_SPEED AccessSpeed is invalid.

CS_UNSUPPORTED_FUNCTION No PCMCIA hardware installed.

 

CONTEXT

This function may be called from user or kernel context.  

SEE ALSO

csx_ConvertSpeed(9F), csx_MapMemPage(9F), csx_ReleaseWindow(9F), csx_RequestWindow(9F)

PC Card 95 Standard, PCMCIA/JEIDA


 

Index

NAME
SYNOPSIS
INTERFACE LEVEL
PARAMETERS
DESCRIPTION
STRUCTURE MEMBERS
RETURN VALUES
CONTEXT
SEE ALSO

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Time: 02:39:44 GMT, October 02, 2010