1 files changed, 77 insertions, 0 deletions
diff --git a/zephyr/shim/src/keyboard_raw.c b/zephyr/shim/src/keyboard_raw.c
new file mode 100644
index 0000000000..a8017cc0cf
--- /dev/null
+++ b/zephyr/shim/src/keyboard_raw.c
@@ -0,0 +1,77 @@
+/* Copyright 2021 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.
+ */
+
+/* Functions needed by keyboard scanner module for Chrome EC */
+
+#include <device.h>
+#include <logging/log.h>
+#include <soc.h>
+#include <zephyr.h>
+
+#include "drivers/cros_kb_raw.h"
+#include "keyboard_raw.h"
+
+LOG_MODULE_REGISTER(shim_cros_kb_raw, LOG_LEVEL_ERR);
+
+#define CROS_KB_RAW_DEV DT_LABEL(DT_NODELABEL(cros_kb_raw))
+static const struct device *cros_kb_raw_dev;
+
+/**
+ * Initialize the raw keyboard interface.
+ */
+void keyboard_raw_init(void)
+{
+	cros_kb_raw_dev = device_get_binding(CROS_KB_RAW_DEV);
+	if (!cros_kb_raw_dev) {
+		LOG_ERR("Fail to find %s", CROS_KB_RAW_DEV);
+		return;
+	}
+
+	LOG_INF("%s", __func__);
+	cros_kb_raw_init(cros_kb_raw_dev);
+}
+
+/**
+ * Finish initialization after task scheduling has started.
+ */
+void keyboard_raw_task_start(void)
+{
+	keyboard_raw_enable_interrupt(1);
+}
+
+/**
+ * Drive the specified column low.
+ */
+test_mockable void keyboard_raw_drive_column(int col)
+{
+	if (cros_kb_raw_dev)
+		cros_kb_raw_drive_column(cros_kb_raw_dev, col);
+	else
+		LOG_ERR("%s: no cros_kb_raw device!", __func__);
+}
+
+/**
+ * Read raw row state.
+ * Bits are 1 if signal is present, 0 if not present.
+ */
+test_mockable int keyboard_raw_read_rows(void)
+{
+	if (cros_kb_raw_dev)
+		return cros_kb_raw_read_rows(cros_kb_raw_dev);
+
+	LOG_ERR("%s: no cros_kb_raw device!", __func__);
+	return -EIO;
+}
+
+/**
+ * Enable or disable keyboard interrupts.
+ */
+void keyboard_raw_enable_interrupt(int enable)
+{
+	if (cros_kb_raw_dev)
+		cros_kb_raw_enable_interrupt(cros_kb_raw_dev, enable);
+	else
+		LOG_ERR("%s: no cros_kb_raw device!", __func__);
+}