csx_ModifyWindow(9F)					   Kernel Functions for Drivers 				      csx_ModifyWindow(9F)

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_ReleaseWin-
       dow(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

       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

SunOS 5.11							    19 Jul 1996 					      csx_ModifyWindow(9F)