Add EC component for SMSC MEC1308/1310

[coreboot.git] / src / ec / smsc / mec1308 / ec.h

diff --git a/src/ec/smsc/mec1308/ec.h b/src/ec/smsc/mec1308/ec.h
new file mode 100644 (file)
index 0000000..07bfc4f
--- /dev/null
+++ b/src/ec/smsc/mec1308/ec.h
@@ -0,0 +1,41 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 The Chromium OS Authors. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * 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
+ *
+ * Mailbox EC communication interface for SMSC MEC1308 Embedded Controller.
+ */
+
+#ifndef _EC_SMSC_MEC1308_EC_H
+#define _EC_SMSC_MEC1308_EC_H
+
+#define EC_TIMEOUT           0xfff
+#define EC_MAILBOX_COMMAND   0x82  // Send a command
+#define EC_MAILBOX_DATA      0x84  // Send data with a command
+#define EC_MAILBOX_DATA_H    0x85  // Send data with a command
+#define EC_RAM_READ          0x88  // Read from RAM
+#define EC_RAM_WRITE         0x89  // Write to RAM
+
+int send_ec_command(u8 command);
+int send_ec_command_data(u8 command, u8 data);
+u8 read_ec_command_byte(u8 command);
+u8 ec_read(u8 addr);
+int ec_write(u8 addr, u8 data);
+void ec_set_bit(u8 addr, u8 bit);
+void ec_clr_bit(u8 addr, u8 bit);
+void ec_set_ports(u16 cmd_reg, u16 data_reg);
+
+#endif /* _EC_SMSC_MEC1308_EC_H */