1 files changed, 67 insertions, 0 deletions
diff --git a/src/ec/lenovo/h8/wwan.c b/src/ec/lenovo/h8/wwan.c
new file mode 100644
index 0000000000..cf3c8f7cf0
--- /dev/null
+++ b/src/ec/lenovo/h8/wwan.c
@@ -0,0 +1,67 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Patrick Rudolph <siro@das-labor.org>
+ *
+ * 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 <southbridge/intel/common/gpio.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <ec/acpi/ec.h>
+#include <option.h>
+
+#include "h8.h"
+#include "chip.h"
+
+/* Controls radio-off pin in WWAN MiniPCIe slot.  */
+void h8_wwan_enable(int on)
+{
+	if (on)
+		ec_set_bit(0x3a, 6);
+	else
+		ec_clr_bit(0x3a, 6);
+}
+
+/*
+ * Detect WWAN on supported MBs.
+ */
+bool h8_has_wwan(struct device *dev)
+{
+	struct ec_lenovo_h8_config *conf = dev->chip_info;
+
+	if (!conf->has_wwan_detection) {
+		printk(BIOS_INFO, "H8: WWAN detection not implemented. "
+				  "Assuming WWAN installed\n");
+		return true;
+	}
+
+	if (get_gpio(conf->wwan_gpio_num) == conf->wwan_gpio_lvl) {
+		printk(BIOS_INFO, "H8: WWAN installed\n");
+		return true;
+	}
+
+	printk(BIOS_INFO, "H8: WWAN not installed\n");
+	return false;
+}
+
+/*
+ * Return WWAN NVRAM setting.
+ */
+bool h8_wwan_nv_enable(void)
+{
+	u8 val;
+
+	if (get_option(&val, "wwan") != CB_SUCCESS)
+		return true;
+
+	return val;
+}