linux.git/drivers/staging/mei/interface.c, branch v3.3

staging/mei: code style - cleanup blanks

2011-12-14T00:22:18+00:00

1. Remove redundant blanks
2. Straighten code lines that don't go over 80 characters

Signed-off-by: Tomas Winkler 
Signed-off-by: Greg Kroah-Hartman

drivers/staging/mei/interface.c: take size of pointed value, not pointer

2011-09-16T18:49:18+00:00

Sizeof a pointer-typed expression returns the size of the pointer, not that
of the pointed data.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// 
@@
expression *e;
type T;
identifier f;
@@

f(...,(T)e,...,
-sizeof(e)
+sizeof(*e)
,...)
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Greg Kroah-Hartman

staging: mei: rename num_mei_me_clients to me_clients_num

2011-06-28T20:21:32+00:00

Signed-off-by: Tomas Winkler 
Signed-off-by: Oren Weil 
Signed-off-by: Greg Kroah-Hartman

staging: mei: mei_dev - kill unused members

2011-06-28T20:20:33+00:00

remove write only/unsed variables
mei_dev.write_hang and mei_io_lis.tdevice_extension

Signed-off-by: Tomas Winkler 
Signed-off-by: Oren Weil 
Signed-off-by: Greg Kroah-Hartman

staging/mei: MEI link layer

2011-05-18T15:30:57+00:00

Implementation of the communication between host and ME.
connect/disconnect to/from a client, send MEI message,
read MEI message, flow control handling.

Each MEI message has mei_msg_hdr followed by a payload.
Driver is oblivious the payload.

ME Address/ID 	- This is the logical address of the ME
		feature/client of that message.
Host Address/ID	- This is the logical address of the Host
		  client of that message
Length 		- This is the Length of message payload in bytes
Reserved 	-  reserved for future use.
Message Complete - This bit is used to indicative that
		this is the last message of multi message
		MEI transfer of a client message that is larger
		then the MEI circular buffer.
Payload		- Message payload (data) up to 512bytes

The HW data registers are consist two circular buffers,
one for data from ME and other data from Host application.
Each buffer has two pointers, read_ptr (H_CBRP)
and write_ptr (H_CBWP).
The buffers size is defined by depth value that exists
in the status registers (H_CBD and ME_CBD_HRA).
Every read from ME circular buffer cause read_ptr++
Every write to the Host  circular buffer write_ptr++

Flow control MEI message that ME and MEI Driver use to notify
each other that a ME feature/client or Host client buffer is ready
to receive data.

Signed-off-by: Tomas Winkler 
Signed-off-by: Itzhak Tzeel-Krupp 
Signed-off-by: Oren Weil 
Signed-off-by: Greg Kroah-Hartman