Add Nokia CBUS support

[linux-2.6-omap-h63xx.git] / drivers / cbus / user_retu_tahvo.h

diff --git a/drivers/cbus/user_retu_tahvo.h b/drivers/cbus/user_retu_tahvo.h
new file mode 100644 (file)
index 0000000..a5c2190
--- /dev/null
+++ b/drivers/cbus/user_retu_tahvo.h
@@ -0,0 +1,75 @@
+/**
+ * drivers/cbus/user_retu_tahvo.h
+ *
+ * Copyright (C) 2004, 2005 Nokia Corporation
+ *
+ * Written by Mikko Ylinen <mikko.k.ylinen@nokia.com>
+ *
+ * Definitions and types used by both retu-user and tahvo-user.
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file "COPYING" in the main directory of this
+ * archive for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _USER_RETU_TAHVO_H
+#define _USER_RETU_TAHVO_H
+
+/* Chip IDs */
+#define CHIP_RETU      1
+#define CHIP_TAHVO     2
+
+/* Register access type bits */
+#define READ_ONLY              1
+#define WRITE_ONLY             2
+#define READ_WRITE             3
+#define TOGGLE                 4
+
+#define MASK(field)            ((u16)(field & 0xFFFF))
+#define REG(field)             ((u16)((field >> 16) & 0x3F))
+
+/*** IOCTL definitions. These should be kept in sync with user space **********/
+
+#define URT_IOC_MAGIC '`'
+
+/*
+ * IOCTL function naming conventions:
+ * ==================================
+ *  0 -- No argument and return value
+ *  S -- Set through a pointer
+ *  T -- Tell directly with the argument value
+ *  G -- Reply by setting through a pointer
+ *  Q -- response is on the return value
+ *  X -- S and G atomically
+ *  H -- T and Q atomically
+ */
+
+/* General */
+#define URT_IOCT_IRQ_SUBSCR            _IO(URT_IOC_MAGIC, 0)
+
+/* RETU */
+#define RETU_IOCH_READ                 _IO(URT_IOC_MAGIC, 1)
+#define RETU_IOCX_WRITE                        _IO(URT_IOC_MAGIC, 2)
+#define RETU_IOCH_ADC_READ             _IO(URT_IOC_MAGIC, 3)
+
+/* TAHVO */
+#define TAHVO_IOCH_READ                        _IO(URT_IOC_MAGIC, 4)
+#define TAHVO_IOCX_WRITE               _IO(URT_IOC_MAGIC, 5)
+
+/* This structure is used for writing RETU/TAHVO registers */
+struct retu_tahvo_write_parms {
+    u32        field;
+    u16        value;
+    u8 result;
+};
+
+#endif