User talk:MrNuke: Difference between revisions

Revision as of 21:44, 9 January 2014

Chan is an IO channel.

This struct is used in Inferno and has been for a long time; so it works. It's also in the opcodes somewhat like what we did for EMMC on ARM.

struct Dev { char* name;

void (*reset)(void);

void (*init)(void);

void (*shutdown)(void);

Chan* (*attach)(char*); /* tell the device you want to use it */

Walkqid* (*walk)(Chan*, Chan*, char**, int); /* walk to a name in the device's managed name space; return a handle */

int (*stat)(Chan*, uchar*, int); // status info

Chan* (*open)(Chan*, int); /* get access to a resource in the device name space */

void (*close)(Chan*); /* tell it you are done with whatever it is. */

long (*read)(Chan*, void*, long, vlong);

long (*write)(Chan*, void*, long, vlong);

void (*power)(int); /* power mgt: power(1) ? on, power (0) ? off */

};

@@ Line 1: / Line 1: @@
-== Ideas for generic handling of storage/MMC devices ==
+== Ideas for generic handling of devices ==
- struct some_interface {
+Chan is an IO channel.
- 	void no_idea;
- }
+This struct is used in Inferno and has been for a long time; so it works.
+It's also in the opcodes somewhat like what we did for EMMC on ARM.
+struct Dev
+{
+	char*	name;
+	void	(*reset)(void);
+	void	(*init)(void);
+	void	(*shutdown)(void);
+	Chan*	(*attach)(char*); /* tell the device you want to use it */
+	Walkqid*	(*walk)(Chan*, Chan*, char**, int); /* walk to a name in the device's managed name space; return a handle */
+	int	(*stat)(Chan*, uchar*, int); // status info
+	Chan*	(*open)(Chan*, int); /* get access to a resource in the device name space */
+	void	(*close)(Chan*); /* tell it you are done with whatever it is. */
+	long	(*read)(Chan*, void*, long, vlong);
+	long	(*write)(Chan*, void*, long, vlong);
+	void	(*power)(int);	/* power mgt: power(1) ? on, power (0) ? off */
+};