Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7fdc7849d2f9f926cbaec224bbcbacb164b07b23
Commit: 7fdc7849d2f9f926cbaec224bbcbacb164b07b23
Parent: b8b6970b4fe08397554295b0c5169bec7575f7c9
Author: Arnaud Patard <[EMAIL PROTECTED]>
AuthorDate: Wed May 9 21:41:03 2007 +0100
Committer: Russell King <[EMAIL PROTECTED]>
CommitDate: Fri May 11 17:19:37 2007 +0100
[ARM] 4359/3: H1940: Add bluetooth support
This patch adds a small driver responsible for configuring the UART used
for the bluetooth chip and for enabling the bluetooth chipset.
Additionnaly, can trigger a led if the H1940 led driver is enabled.
Signed-off-by: Arnaud Patard <[EMAIL PROTECTED]>
Signed-off-by: Ben Dooks <[EMAIL PROTECTED]>
Signed-off-by: Russell King <[EMAIL PROTECTED]>
---
arch/arm/mach-s3c2410/Makefile | 2 +-
arch/arm/mach-s3c2410/h1940-bluetooth.c | 142 +++++++++++++++++++++++++++++++
arch/arm/mach-s3c2410/mach-h1940.c | 6 ++
3 files changed, 149 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile
index 9a3d3d2..3e7a855 100644
--- a/arch/arm/mach-s3c2410/Makefile
+++ b/arch/arm/mach-s3c2410/Makefile
@@ -20,7 +20,7 @@ obj-$(CONFIG_S3C2410_CLOCK) += clock.o
# Machine support
obj-$(CONFIG_ARCH_SMDK2410) += mach-smdk2410.o
-obj-$(CONFIG_ARCH_H1940) += mach-h1940.o
+obj-$(CONFIG_ARCH_H1940) += mach-h1940.o h1940-bluetooth.o
obj-$(CONFIG_PM_H1940) += pm-h1940.o
obj-$(CONFIG_MACH_N30) += mach-n30.o
obj-$(CONFIG_ARCH_BAST) += mach-bast.o usb-simtec.o
diff --git a/arch/arm/mach-s3c2410/h1940-bluetooth.c
b/arch/arm/mach-s3c2410/h1940-bluetooth.c
new file mode 100644
index 0000000..3c48886
--- /dev/null
+++ b/arch/arm/mach-s3c2410/h1940-bluetooth.c
@@ -0,0 +1,142 @@
+/*
+ * arch/arm/mach-s3c2410/h1940-bluetooth.c
+ * Copyright (c) Arnaud Patard <[EMAIL PROTECTED]>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ * S3C2410 bluetooth "driver"
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/leds.h>
+#include <asm/arch/regs-gpio.h>
+#include <asm/hardware.h>
+#include <asm/arch/h1940-latch.h>
+
+#define DRV_NAME "h1940-bt"
+
+#ifdef CONFIG_LEDS_H1940
+DEFINE_LED_TRIGGER(bt_led_trigger);
+#endif
+
+static int state;
+
+/* Bluetooth control */
+static void h1940bt_enable(int on)
+{
+ if (on) {
+#ifdef CONFIG_LEDS_H1940
+ /* flashing Blue */
+ led_trigger_event(bt_led_trigger, LED_HALF);
+#endif
+
+ /* Power on the chip */
+ h1940_latch_control(0, H1940_LATCH_BLUETOOTH_POWER);
+ /* Reset the chip */
+ mdelay(10);
+ s3c2410_gpio_setpin(S3C2410_GPH1, 1);
+ mdelay(10);
+ s3c2410_gpio_setpin(S3C2410_GPH1, 0);
+
+ state = 1;
+ }
+ else {
+#ifdef CONFIG_LEDS_H1940
+ led_trigger_event(bt_led_trigger, 0);
+#endif
+
+ s3c2410_gpio_setpin(S3C2410_GPH1, 1);
+ mdelay(10);
+ s3c2410_gpio_setpin(S3C2410_GPH1, 0);
+ mdelay(10);
+ h1940_latch_control(H1940_LATCH_BLUETOOTH_POWER, 0);
+
+ state = 0;
+ }
+}
+
+static ssize_t h1940bt_show(struct device *dev, struct device_attribute *attr,
char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", state);
+}
+
+static ssize_t h1940bt_store(struct device *dev, struct device_attribute
*attr, const char *buf, size_t count)
+{
+ int new_state;
+ char *endp;
+
+ new_state = simple_strtoul(buf, &endp, 0);
+ if (*endp && !isspace(*endp))
+ return -EINVAL;
+
+ h1940bt_enable(new_state);
+
+ return count;
+}
+static DEVICE_ATTR(enable, 0644,
+ h1940bt_show,
+ h1940bt_store);
+
+static int __init h1940bt_probe(struct platform_device *pdev)
+{
+ /* Configures BT serial port GPIOs */
+ s3c2410_gpio_cfgpin(S3C2410_GPH0, S3C2410_GPH0_nCTS0);
+ s3c2410_gpio_pullup(S3C2410_GPH0, 1);
+ s3c2410_gpio_cfgpin(S3C2410_GPH1, S3C2410_GPH1_OUTP);
+ s3c2410_gpio_pullup(S3C2410_GPH1, 1);
+ s3c2410_gpio_cfgpin(S3C2410_GPH2, S3C2410_GPH2_TXD0);
+ s3c2410_gpio_pullup(S3C2410_GPH2, 1);
+ s3c2410_gpio_cfgpin(S3C2410_GPH3, S3C2410_GPH3_RXD0);
+ s3c2410_gpio_pullup(S3C2410_GPH3, 1);
+
+#ifdef CONFIG_LEDS_H1940
+ led_trigger_register_simple("h1940-bluetooth", &bt_led_trigger);
+#endif
+
+ /* disable BT by default */
+ h1940bt_enable(0);
+
+ return device_create_file(&pdev->dev, &dev_attr_enable);
+}
+
+static int h1940bt_remove(struct platform_device *pdev)
+{
+#ifdef CONFIG_LEDS_H1940
+ led_trigger_unregister_simple(bt_led_trigger);
+#endif
+ return 0;
+}
+
+
+static struct platform_driver h1940bt_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ },
+ .probe = h1940bt_probe,
+ .remove = h1940bt_remove,
+};
+
+
+static int __init h1940bt_init(void)
+{
+ return platform_driver_register(&h1940bt_driver);
+}
+
+static void __exit h1940bt_exit(void)
+{
+ platform_driver_unregister(&h1940bt_driver);
+}
+
+module_init(h1940bt_init);
+module_exit(h1940bt_exit);
+
+MODULE_AUTHOR("Arnaud Patard <[EMAIL PROTECTED]>");
+MODULE_DESCRIPTION("Driver for the iPAQ H1940 bluetooth chip");
+MODULE_LICENSE("GPL");
diff --git a/arch/arm/mach-s3c2410/mach-h1940.c
b/arch/arm/mach-s3c2410/mach-h1940.c
index 5d5f00e..5ccd0be 100644
--- a/arch/arm/mach-s3c2410/mach-h1940.c
+++ b/arch/arm/mach-s3c2410/mach-h1940.c
@@ -177,6 +177,11 @@ static struct platform_device s3c_device_leds = {
.id = -1,
};
+static struct platform_device s3c_device_bluetooth = {
+ .name = "h1940-bt",
+ .id = -1,
+};
+
static struct platform_device *h1940_devices[] __initdata = {
&s3c_device_usb,
&s3c_device_lcd,
@@ -185,6 +190,7 @@ static struct platform_device *h1940_devices[] __initdata =
{
&s3c_device_iis,
&s3c_device_usbgadget,
&s3c_device_leds,
+ &s3c_device_bluetooth,
};
static void __init h1940_map_io(void)
-
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