Hello Ilya,
On 03/06/2015 23:01, Ilya Faenson wrote:
Introduce the device tree enumerated Broadcom Bluetooth UART driver.
Signed-off-by: Ilya Faenson <ifaenson@xxxxxxxxxxxx>
---
drivers/bluetooth/Kconfig | 9 +
drivers/bluetooth/Makefile | 1 +
drivers/bluetooth/btbcm_uart.c | 673 +++++++++++++++++++++++++++++++++++++++++
drivers/bluetooth/btbcm_uart.h | 89 ++++++
4 files changed, 772 insertions(+)
create mode 100644 drivers/bluetooth/btbcm_uart.c
create mode 100644 drivers/bluetooth/btbcm_uart.h
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 2e77707..5eee3ed 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -143,6 +143,7 @@ config BT_HCIUART_BCM
bool "Broadcom protocol support"
depends on BT_HCIUART
select BT_HCIUART_H4
+ select BT_UART_BCM
select BT_BCM
help
The Broadcom protocol support enables Bluetooth HCI over serial
@@ -150,6 +151,14 @@ config BT_HCIUART_BCM
Say Y here to compile support for Broadcom protocol.
+config BT_UART_BCM
+ tristate "Broadcom BT UART driver"
+ depends on BT_HCIUART_H4 && TTY
+ help
+ This driver supports the HCI_UART_BT protocol.
+
+ It manages Bluetooth UART device properties and GPIOs.
+
config BT_HCIBCM203X
tristate "HCI BCM203x USB driver"
depends on USB
diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
index f40e194..e908a88 100644
--- a/drivers/bluetooth/Makefile
+++ b/drivers/bluetooth/Makefile
@@ -21,6 +21,7 @@ obj-$(CONFIG_BT_MRVL) += btmrvl.o
obj-$(CONFIG_BT_MRVL_SDIO) += btmrvl_sdio.o
obj-$(CONFIG_BT_WILINK) += btwilink.o
obj-$(CONFIG_BT_BCM) += btbcm.o
+obj-$(CONFIG_BT_UART_BCM) += btbcm_uart.o
obj-$(CONFIG_BT_RTL) += btrtl.o
btmrvl-y := btmrvl_main.o
diff --git a/drivers/bluetooth/btbcm_uart.c b/drivers/bluetooth/btbcm_uart.c
new file mode 100644
index 0000000..ccd02a9
--- /dev/null
+++ b/drivers/bluetooth/btbcm_uart.c
@@ -0,0 +1,673 @@
+/*
+ * Bluetooth BCM UART Driver
+ *
+ * Copyright (c) 2015 Broadcom Corporation
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/poll.h>
+
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/signal.h>
+#include <linux/ioctl.h>
+#include <linux/skbuff.h>
+#include <linux/list.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include <linux/gpio/consumer.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_platform.h>
+
+#include "btbcm_uart.h"
+
+static int idle_timeout = 5;
+module_param(idle_timeout, int, 0);
+MODULE_PARM_DESC(idle_timeout, "Bluetooth idle timeout in seconds");
+
+/* Device context */
+struct bcm_device {
+ struct list_head list;
+
+ struct platform_device *pdev;
+ struct gpio_desc *bt_wake_gpio;
+ struct gpio_desc *dev_wake_gpio;
+ struct gpio_desc *reg_on_gpio;
+ int bt_wake_irq;
+ int dev_wake_active_low;
+ int reg_on_active_low;
+ int bt_wake_active_low;
+ bool configure_sleep;
+ u32 manual_fc;
+ u32 oper_speed;
+ bool configure_audio;
+ u32 pcm_clockmode;
+ u32 pcm_fillmethod;
+ u32 pcm_fillnum;
+ u32 pcm_fillvalue;
+ u32 pcm_incallbitclock;
+ u32 pcm_lsbfirst;
+ u32 pcm_rightjustify;
+ u32 pcm_routing;
+ u32 pcm_shortframesync;
+ u32 pcm_syncmode;
+
+ char tty_name[64];
+
+ struct btbcm_uart_callbacks protocol_callbacks;
+ struct work_struct wakeup_work;
+};
+
+/* List of BCM BT UART devices */
+static DEFINE_SPINLOCK(device_list_lock);
+static LIST_HEAD(device_list);
+
+/*
+ * Calling the BCM protocol at lower execution priority
+ */
+static void bcm_bt_wakeup_task(struct work_struct *ws)
+{
+ int gpio_value;
+ struct bcm_device *p_bcm_device =
+ container_of(ws, struct bcm_device, wakeup_work);
+
+ if (!p_bcm_device) {
+ BT_DBG("%s - failing, no device", __func__);
You do not need to include the function name in BT_DBG, this is managed
by dynamic debug feature +f flag when enabling debug traces.
Regards
Fred
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