xshm: Channel config definitions for ST-E M7400 driver.

Netlink parameters used for configuring channels from user space.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>

diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 619b5657af77b232541a56a6e3cd06d7f2693210..bd2db5c474aa105b42a07347758cf4633a7491f8 100644 (file)
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -17,6 +17,7 @@ header-y += netfilter_bridge/
 header-y += netfilter_ipv4/
 header-y += netfilter_ipv6/
 header-y += usb/
+header-y += xshm/
 header-y += wimax/
 
 objhdr-y += version.h

diff --git a/include/linux/xshm/Kbuild b/include/linux/xshm/Kbuild
new file mode 100644 (file)
index 0000000..4315a21
--- /dev/null
+++ b/include/linux/xshm/Kbuild
@@ -0,0 +1 @@
+header-y += xshm_netlink.h

diff --git a/include/linux/xshm/xshm_netlink.h b/include/linux/xshm/xshm_netlink.h
new file mode 100644 (file)
index 0000000..e785ad2
--- /dev/null
+++ b/include/linux/xshm/xshm_netlink.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) ST-Ericsson AB 2011
+ * Author: Sjur Brændeland / sjur.brandeland@stericsson.com
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#ifndef XSHM_NL_H_
+#define XSHM_NL_H_
+
+#define XSHM_PROTO_VERSION 1
+#define XSHM_PROTO_SUB_VERSION 0
+#define XSHM_NETLINK_VERSION 1
+/**
+ * enum XSHM_COMMANDS - Attributes used for configuring XSHM device.
+ *
+ * @XSHM_C_ADD_STREAM_CHANNEL: Adds a Stream Channel.
+ * This will cause an instance of XSHM-CHR to be created.
+ * @XSHM_C_ADD_PACKET_CHANNEL: Adds a Packet Channel.
+ * This will cause an instance of CAIF-SHM to be created.
+ * @XSHM_C_COMMIT: formats and write Channel configuration data to
+ *     Shared Memory.
+ * @XSHM_C_SET_ADDR: Writes the TOC address to GENO register.
+ * @XSHM_C_REGISTER:  Initiates registration of the channel devices.
+ *     This will cause xshm - character devices or
+ *     CAIF network instances to be created.
+ * @XSHM_C_RESET:  Reset the configuration data and removes the
+ *     platform devices and their associated channel configuration.
+ *     ipc_ready and caif_ready is set to false.
+ *
+ * A normal sequence of events is: [XSHM_C_RESET], [XSHM_C_ADD_X_CHANNEL],
+ *     XSHM_C_COMMIT, XSHM_C_REGISTER, XSHM_C_SET_ADDR.
+ */
+enum XSHM_COMMANDS {
+       XSHM_C_ADD_STREAM_CHANNEL = 1,
+       XSHM_C_ADD_PACKET_CHANNEL,
+       XSHM_C_RESET,
+       XSHM_C_SET_ADDR,
+       XSHM_C_COMMIT,
+       XSHM_C_REGISTER,
+       __XSHM_C_VERIFY,
+       __XSHM_C_MAX
+};
+
+/**
+ * enum XSHM_ATTRIBUTES - Attributes used for configuring XSHM device.
+ * @XSHM_A_VERSION: Version of XSHM netlink protocol. Type NLA_U8
+ * @XSHM_A_SUB_VERSION: Sub-version of XSHM netlink protocol. Type NLA_U8
+ * @XSHM_A_NAME: Name of the channel, max 15 characters. Type NLA_NUL_STRING
+ * @XSHM_A_EXCL_GROUP: Devices may be part of a group. Devices from the
+ *     same group are allowed to be open simultaneously,
+ *     but devices from different groups cannot be opened
+ *     at the same time. Type NLA_U8.
+ * @XSHM_A_RX_CHANNEL: The RX direction attributes. Type NLA_NESTED.
+ *     Each channel may contain the attributes - XSHM_A_CHANNEL_SIZE,
+ *     XSHM_A_CHANNEL_BUFFERS, XSHM_A_ALIGNMENT, XSHM_A_MTU.
+ *
+ * @XSHM_A_TX_CHANNEL: The TX direction attributes. Type NLA_NESTED.
+ *
+ * @XSHM_A_CHANNEL_SIZE: Size of the data area for a channel. Specified
+ *     for RX, TX. Type NLA_U32,
+ * @XSHM_A_CHANNEL_BUFFERS: Numer of buffers for a packet channel.
+ *     This attribute is only used for packet channels.  Specified for RX, TX.
+ *     Type NLA_U32,
+ * @XSHM_A_ALIGNMENT: Alignment for each packet in a buffer. This attribute
+ *      is only used for packet channels.  Specified for RX, TX.Type NLA_U8,
+ * @XSHM_A_MTU: Maximum Transfer Unit for packets in a buffer.
+ *     This is only appplicable for packet channels.
+ *     Specified for RX, TX.Type NLA_U16,
+ * @XSHM_A_PACKETS: Maximum number of packets in a buffer. Type NLA_U8
+ * @XSHM_A_PRIORITY: Priority of the channel, legal range is 0-7 where
+ *     0 is lowest priority. Type NLA_U8.
+ * @XSHM_A_LATENCY: Latency for channel, value:0 means low latency
+ *      and low bandwidth,
+ *      value 1 means high latency and high bandwidth. Type NLA_U8.
+ */
+enum XSHM_ATTRIBUTES {
+       __XSHM_A_FLAGS = 1,             /* Test flags: NLA_U32 */
+       XSHM_A_VERSION,
+       XSHM_A_SUB_VERSION,
+       XSHM_A_NAME,
+       XSHM_A_EXCL_GROUP,
+       XSHM_A_RX_CHANNEL,
+       XSHM_A_TX_CHANNEL,
+       XSHM_A_CHANNEL_SIZE,
+       XSHM_A_CHANNEL_BUFFERS,
+       XSHM_A_ALIGNMENT,
+       XSHM_A_MTU,
+       XSHM_A_PACKETS,
+       XSHM_A_PRIORITY,
+       XSHM_A_LATENCY,
+       __XSHM_A_MAX,
+};
+#define XSHM_A_MAX (__XSHM_A_MAX - 1)
+
+#endif /* XSHM_NL_H_ */