1 files changed, 59 insertions, 0 deletions
diff --git a/src/drivers/i2c/wacom/wacom.c b/src/drivers/i2c/wacom/wacom.c
new file mode 100644
index 0000000000..c54194fc96
--- /dev/null
+++ b/src/drivers/i2c/wacom/wacom.c
@@ -0,0 +1,59 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2016 Google Inc.
+ *
+ * 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.
+ */
+
+#include <arch/acpigen_dsm.h>
+#include <device/device.h>
+#include <stdint.h>
+#include "chip.h"
+
+static void i2c_wacom_fill_dsm(struct device *dev)
+{
+	struct drivers_i2c_wacom_config *config = dev->chip_info;
+	struct dsm_i2c_hid_config dsm_config = {
+		.hid_desc_reg_offset = config->hid_desc_reg_offset,
+	};
+
+	acpigen_write_dsm_i2c_hid(&dsm_config);
+}
+
+static void i2c_wacom_fill_ssdt_generator(struct device *dev)
+{
+	i2c_generic_fill_ssdt(dev, &i2c_wacom_fill_dsm);
+}
+
+static const char *i2c_wacom_acpi_name(struct device *dev)
+{
+	return "WCOM";
+}
+
+static struct device_operations i2c_wacom_ops = {
+	.read_resources		  = DEVICE_NOOP,
+	.set_resources		  = DEVICE_NOOP,
+	.enable_resources	  = DEVICE_NOOP,
+#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)
+	.acpi_name		  = &i2c_wacom_acpi_name,
+	.acpi_fill_ssdt_generator = &i2c_wacom_fill_ssdt_generator,
+#endif
+};
+
+static void i2c_wacom_enable(struct device *dev)
+{
+	dev->ops = &i2c_wacom_ops;
+}
+
+struct chip_operations drivers_i2c_wacom_ops = {
+	CHIP_NAME("Wacom I2C Device")
+	.enable_dev = &i2c_wacom_enable
+};