1 files changed, 50 insertions, 0 deletions
diff --git a/include/lpc.h b/include/lpc.h
new file mode 100644
index 0000000000..d87d9bab7c
--- /dev/null
+++ b/include/lpc.h
@@ -0,0 +1,50 @@
+/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* LPC module for Chrome EC */
+
+#ifndef __CROS_EC_LPC_H
+#define __CROS_EC_LPC_H
+
+#include "common.h"
+
+
+/* Manually generates an IRQ to host.
+ * Note that the irq_num == 0 would set the AH bit (Active High).
+ */
+void lpc_manual_irq(int irq_num);
+
+
+/* Initializes the LPC module. */
+int lpc_init(void);
+
+/* Returns a pointer to the host command data buffer.  This buffer
+ * must only be accessed between a notification to
+ * host_command_received() and a subsequent call to
+ * lpc_SendHostResponse().  <slot> is 0 for kernel-originated
+ * commands, 1 for usermode-originated commands. */
+uint8_t *lpc_get_host_range(int slot);
+
+/* Sends a response to a host command.  The bottom 4 bits of <status>
+ * are sent in the status byte.  <slot> is 0 for kernel-originated
+ * commands, 1 for usermode-originated commands. */
+void lpc_send_host_response(int slot, int status);
+
+/* Return true if the TOH is still set */
+int lpc_keyboard_has_char(void);
+
+/* Send a byte to host via port 0x60 and asserts IRQ if specified. */
+void lpc_keyboard_put_char(uint8_t chr, int send_irq);
+
+/* Returns non-zero if the COMx interface has received a character. */
+int lpc_comx_has_char(void);
+
+/* Returns the next character pending on the COMx interface. */
+int lpc_comx_get_char(void);
+
+/* Puts a character to the COMx LPC interface. */
+void lpc_comx_put_char(int c);
+
+#endif  /* __CROS_EC_LPC_H */