1 files changed, 113 insertions, 0 deletions

diff --git a/include/uapi/linux/hsi/cs-protocol.h b/include/uapi/linux/hsi/cs-protocol.h
new file mode 100644
index 000000000000..4957bba57cbe
--- /dev/null
+++ b/include/uapi/linux/hsi/cs-protocol.h
@@ -0,0 +1,113 @@
+/*
+ * cmt-speech interface definitions
+ *
+ * Copyright (C) 2008,2009,2010 Nokia Corporation. All rights reserved.
+ *
+ * Contact: Kai Vehmanen <kai.vehmanen@nokia.com>
+ * Original author: Peter Ujfalusi <peter.ujfalusi@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef _CS_PROTOCOL_H
+#define _CS_PROTOCOL_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/* chardev parameters */
+#define CS_DEV_FILE_NAME                "/dev/cmt_speech"
+
+/* user-space API versioning */
+#define CS_IF_VERSION                   2
+
+/* APE kernel <-> user space messages */
+#define CS_CMD_SHIFT                    28
+#define CS_DOMAIN_SHIFT                 24
+
+#define CS_CMD_MASK                     0xff000000
+#define CS_PARAM_MASK                   0xffffff
+
+#define CS_CMD(id, dom) \
+        (((id) << CS_CMD_SHIFT) | ((dom) << CS_DOMAIN_SHIFT))
+
+#define CS_ERROR                        CS_CMD(1, 0)
+#define CS_RX_DATA_RECEIVED             CS_CMD(2, 0)
+#define CS_TX_DATA_READY                CS_CMD(3, 0)
+#define CS_TX_DATA_SENT                 CS_CMD(4, 0)
+
+/* params to CS_ERROR indication */
+#define CS_ERR_PEER_RESET               0
+
+/* ioctl interface */
+
+/* parameters to CS_CONFIG_BUFS ioctl */
+#define CS_FEAT_TSTAMP_RX_CTRL          (1 << 0)
+#define CS_FEAT_ROLLING_RX_COUNTER      (2 << 0)
+
+/* parameters to CS_GET_STATE ioctl */
+#define CS_STATE_CLOSED                 0
+#define CS_STATE_OPENED                 1 /* resource allocated */
+#define CS_STATE_CONFIGURED             2 /* data path active */
+
+/* maximum number of TX/RX buffers */
+#define CS_MAX_BUFFERS_SHIFT            4
+#define CS_MAX_BUFFERS                  (1 << CS_MAX_BUFFERS_SHIFT)
+
+/* Parameters for setting up the data buffers */
+struct cs_buffer_config {
+        __u32 rx_bufs;  /* number of RX buffer slots */
+        __u32 tx_bufs;  /* number of TX buffer slots */
+        __u32 buf_size; /* bytes */
+        __u32 flags;    /* see CS_FEAT_* */
+        __u32 reserved[4];
+};
+
+/*
+ * Struct describing the layout and contents of the driver mmap area.
+ * This information is meant as read-only information for the application.
+ */
+struct cs_mmap_config_block {
+        __u32 reserved1;
+        __u32 buf_size;         /* 0=disabled, otherwise the transfer size */
+        __u32 rx_bufs;          /* # of RX buffers */
+        __u32 tx_bufs;          /* # of TX buffers */
+        __u32 reserved2;
+        /* array of offsets within the mmap area for each RX and TX buffer */
+        __u32 rx_offsets[CS_MAX_BUFFERS];
+        __u32 tx_offsets[CS_MAX_BUFFERS];
+        __u32 rx_ptr;
+        __u32 rx_ptr_boundary;
+        __u32 reserved3[2];
+        /*
+         * if enabled with CS_FEAT_TSTAMP_RX_CTRL, monotonic
+         * timestamp taken when the last control command was received
+         */
+        struct timespec tstamp_rx_ctrl;
+};
+
+#define CS_IO_MAGIC             'C'
+
+#define CS_IOW(num, dtype)      _IOW(CS_IO_MAGIC, num, dtype)
+#define CS_IOR(num, dtype)      _IOR(CS_IO_MAGIC, num, dtype)
+#define CS_IOWR(num, dtype)     _IOWR(CS_IO_MAGIC, num, dtype)
+#define CS_IO(num)              _IO(CS_IO_MAGIC, num)
+
+#define CS_GET_STATE            CS_IOR(21, unsigned int)
+#define CS_SET_WAKELINE         CS_IOW(23, unsigned int)
+#define CS_GET_IF_VERSION       CS_IOR(30, unsigned int)
+#define CS_CONFIG_BUFS          CS_IOW(31, struct cs_buffer_config)
+
+#endif /* _CS_PROTOCOL_H */