From 33dd0f1a76ae8a8abe5061fc18cdc609d14a4fff Mon Sep 17 00:00:00 2001
From: Hemant Gupta <hemant.gupta@stericsson.com>
Date: Tue, 27 Sep 2011 18:39:24 +0530
Subject: mfd/cg2900: Support HCI Raw Channel.

Add support for HCI Raw channel so that CG2900
can be accessed directly from user space.

ST-Ericsson Linux next: Not tested, ER351170
ST-Ericsson ID: 351170
ST-Ericsson FOSS-OUT ID: Trivial

Change-Id: If8a2455be32f0eb99f7c0bc7a5cf0e09270fa6af
Signed-off-by: Hemant Gupta <hemant.gupta@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/32206
Reviewed-by: Henrik POSSUNG <henrik.possung@stericsson.com>
Reviewed-by: Par-Gunnar HJALMDAHL <par-gunnar.p.hjalmdahl@stericsson.com>
---
 Documentation/DocBook/cg2900.tmpl | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'Documentation')

diff --git a/Documentation/DocBook/cg2900.tmpl b/Documentation/DocBook/cg2900.tmpl
index 318bb8e7d2e..34667f1b1d9 100644
--- a/Documentation/DocBook/cg2900.tmpl
+++ b/Documentation/DocBook/cg2900.tmpl
@@ -1268,6 +1268,24 @@
        </listitem>
      </varlistentry>
 
+     <varlistentry>
+       <term>HCI Raw</term>
+       <listitem>
+         <variablelist>
+           <varlistentry>
+             <term>File</term>
+             <listitem><para><filename>/dev/cg2900_hci_raw</filename></para></listitem>
+           </varlistentry>
+           <varlistentry>
+             <term>Description</term>
+             <listitem>
+             <para>The cg2900_hci_raw is the device for raw access to HCI interface.</para>
+             </listitem>
+           </varlistentry>
+         </variablelist>
+       </listitem>
+     </varlistentry>
+
     </variablelist>
   </section>
 
@@ -1297,6 +1315,24 @@
          </para>
        </listitem>
      </varlistentry>
+     <varlistentry>
+       <term>HCI Raw channel requires exclusive access to chip.</term>
+       <listitem>
+         <para>
+           cg2900_hci_raw channel cannot be opened if there are any other channels already opened except hci_logger channel.
+           Also any other channels cannot be opened except hci_logger channel when cg2900_hci_raw is already opened.
+           This is to guarantee that different users won't interfere with each other and prevent flow control issues.
+           <!-- TODO: Briefly describe the limitation, unless all
+              information is already present in the title.
+              Use full english sentences.
+              Repeat the varlistentry for each limitation.
+              If none are known, replace this varlistentry
+              with the one below. -->
+           <!-- TODO: This guideline for this chapter may be extended
+              during the user-guide guidelines drop. -->
+         </para>
+       </listitem>
+     </varlistentry>
      </variablelist>
    </para>
  </chapter>
-- 
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