1 files changed, 93 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/board-trout-rfkill.c b/arch/arm/mach-msm/board-trout-rfkill.c
new file mode 100644
index 000000000000..5212431dda82
--- /dev/null
+++ b/arch/arm/mach-msm/board-trout-rfkill.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2008 Google, Inc.
+ * Author: Nick Pelly <npelly@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+/* Control bluetooth power for trout platform */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/rfkill.h>
+#include <linux/delay.h>
+#include <asm/gpio.h>
+
+#include "board-trout.h"
+
+void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state);
+
+static struct rfkill *bt_rfk;
+static const char bt_name[] = "brf6300";
+
+static int bluetooth_set_power(void *data, enum rfkill_state state)
+{
+	switch (state) {
+	case RFKILL_STATE_UNBLOCKED:
+		gpio_set_value(TROUT_GPIO_BT_32K_EN, 1);
+		udelay(10);
+		gpio_configure(101, GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_HIGH);
+		break;
+	case RFKILL_STATE_SOFT_BLOCKED:
+		gpio_configure(101, GPIOF_DRIVE_OUTPUT | GPIOF_OUTPUT_LOW);
+		gpio_set_value(TROUT_GPIO_BT_32K_EN, 0);
+		break;
+	default:
+		printk(KERN_ERR "bad bluetooth rfkill state %d\n", state);
+	}
+	return 0;
+}
+
+static int __init trout_rfkill_probe(struct platform_device *pdev)
+{
+	int rc = 0;
+
+	/* default to bluetooth off */
+	rfkill_switch_all(RFKILL_TYPE_BLUETOOTH, RFKILL_STATE_SOFT_BLOCKED);
+	bluetooth_set_power(NULL, RFKILL_STATE_SOFT_BLOCKED);
+
+	bt_rfk = rfkill_allocate(&pdev->dev, RFKILL_TYPE_BLUETOOTH);
+	if (!bt_rfk)
+		return -ENOMEM;
+
+	bt_rfk->name = bt_name;
+	bt_rfk->state = RFKILL_STATE_SOFT_BLOCKED;
+	/* userspace cannot take exclusive control */
+	bt_rfk->user_claim_unsupported = 1;
+	bt_rfk->user_claim = 0;
+	bt_rfk->data = NULL;  // user data
+	bt_rfk->toggle_radio = bluetooth_set_power;
+
+	rc = rfkill_register(bt_rfk);
+
+	if (rc)
+		rfkill_free(bt_rfk);
+	return rc;
+}
+
+static struct platform_driver trout_rfkill_driver = {
+	.probe = trout_rfkill_probe,
+	.driver = {
+		.name = "trout_rfkill",
+		.owner = THIS_MODULE,
+	},
+};
+
+static int __init trout_rfkill_init(void)
+{
+	return platform_driver_register(&trout_rfkill_driver);
+}
+
+module_init(trout_rfkill_init);
+MODULE_DESCRIPTION("trout rfkill");
+MODULE_AUTHOR("Nick Pelly <npelly@google.com>");
+MODULE_LICENSE("GPL");