HSI: hsi_char: Add HSI char device driver

Add HSI char device driver to the kernel.

Signed-off-by: Andras Domokos <andras.domokos@nokia.com>
Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/include/linux/hsi/hsi_char.h b/include/linux/hsi/hsi_char.h
new file mode 100644
index 000000000000..76160b4f455d
--- /dev/null
+++ b/include/linux/hsi/hsi_char.h
@@ -0,0 +1,63 @@
+/*
+ * Part of the HSI character device driver.
+ *
+ * Copyright (C) 2010 Nokia Corporation. All rights reserved.
+ *
+ * Contact: Andras Domokos <andras.domokos at 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 __HSI_CHAR_H
+#define __HSI_CHAR_H
+
+#define HSI_CHAR_MAGIC          'k'
+#define HSC_IOW(num, dtype)     _IOW(HSI_CHAR_MAGIC, num, dtype)
+#define HSC_IOR(num, dtype)     _IOR(HSI_CHAR_MAGIC, num, dtype)
+#define HSC_IOWR(num, dtype)    _IOWR(HSI_CHAR_MAGIC, num, dtype)
+#define HSC_IO(num)             _IO(HSI_CHAR_MAGIC, num)
+
+#define HSC_RESET               HSC_IO(16)
+#define HSC_SET_PM              HSC_IO(17)
+#define HSC_SEND_BREAK          HSC_IO(18)
+#define HSC_SET_RX              HSC_IOW(19, struct hsc_rx_config)
+#define HSC_GET_RX              HSC_IOW(20, struct hsc_rx_config)
+#define HSC_SET_TX              HSC_IOW(21, struct hsc_tx_config)
+#define HSC_GET_TX              HSC_IOW(22, struct hsc_tx_config)
+
+#define HSC_PM_DISABLE          0
+#define HSC_PM_ENABLE           1
+
+#define HSC_MODE_STREAM         1
+#define HSC_MODE_FRAME          2
+#define HSC_FLOW_SYNC           0
+#define HSC_ARB_RR              0
+#define HSC_ARB_PRIO            1
+
+struct hsc_rx_config {
+        uint32_t mode;
+        uint32_t flow;
+        uint32_t channels;
+};
+
+struct hsc_tx_config {
+        uint32_t mode;
+        uint32_t channels;
+        uint32_t speed;
+        uint32_t arb_mode;
+};
+
+#endif /* __HSI_CHAR_H */