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yaml
---
r: 172543
b: refs/heads/master
c: 1a71e4a
h: refs/heads/master
i:
  172541: ced5b93
  172539: 81a3ebe
  172535: aca9253
  172527: a9c3893
  172511: c6dce14
  172479: d776c40
  172415: 9d78dec
  172287: f95a71c
  172031: 34ad129
v: v3
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arnaud.patard@rtp-net.org authored and Ben Dooks committed Dec 1, 2009
1 parent 275085f commit ebc1ce3
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Showing 4 changed files with 53 additions and 48 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 22e649ff2e162d3c6ce2a78c377863aab826a8b8
refs/heads/master: 1a71e4ade19d51bab03b6837d4d33a953e4e1206
8 changes: 8 additions & 0 deletions trunk/arch/arm/mach-s3c2410/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,14 @@ config ARCH_H1940
help
Say Y here if you are using the HP IPAQ H1940

config H1940BT
tristate "Control the state of H1940 bluetooth chip"
depends on ARCH_H1940
select RFKILL
help
This is a simple driver that is able to control
the state of built in bluetooth chip on h1940.

config PM_H1940
bool
help
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3 changes: 2 additions & 1 deletion trunk/arch/arm/mach-s3c2410/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,8 @@ obj-$(CONFIG_S3C2410_PLLTABLE) += pll.o
# Machine support

obj-$(CONFIG_ARCH_SMDK2410) += mach-smdk2410.o
obj-$(CONFIG_ARCH_H1940) += mach-h1940.o h1940-bluetooth.o
obj-$(CONFIG_ARCH_H1940) += mach-h1940.o
obj-$(CONFIG_H1940BT) += 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
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88 changes: 42 additions & 46 deletions trunk/arch/arm/mach-s3c2410/h1940-bluetooth.c
Original file line number Diff line number Diff line change
Expand Up @@ -17,77 +17,50 @@
#include <linux/ctype.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/rfkill.h>

#include <mach/regs-gpio.h>
#include <mach/hardware.h>
#include <mach/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_GPH(1), 1);
mdelay(10);
s3c2410_gpio_setpin(S3C2410_GPH(1), 0);

state = 1;
}
else {
#ifdef CONFIG_LEDS_H1940
led_trigger_event(bt_led_trigger, 0);
#endif

s3c2410_gpio_setpin(S3C2410_GPH(1), 1);
mdelay(10);
s3c2410_gpio_setpin(S3C2410_GPH(1), 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)
static int h1940bt_set_block(void *data, bool blocked)
{
return snprintf(buf, PAGE_SIZE, "%d\n", state);
h1940bt_enable(!blocked);
return 0;
}

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 const struct rfkill_ops h1940bt_rfkill_ops = {
.set_block = h1940bt_set_block,
};

static int __init h1940bt_probe(struct platform_device *pdev)
{
struct rfkill *rfk;
int ret = 0;

/* Configures BT serial port GPIOs */
s3c2410_gpio_cfgpin(S3C2410_GPH(0), S3C2410_GPH0_nCTS0);
s3c2410_gpio_pullup(S3C2410_GPH(0), 1);
Expand All @@ -98,21 +71,44 @@ static int __init h1940bt_probe(struct platform_device *pdev)
s3c2410_gpio_cfgpin(S3C2410_GPH(3), S3C2410_GPH3_RXD0);
s3c2410_gpio_pullup(S3C2410_GPH(3), 1);

#ifdef CONFIG_LEDS_H1940
led_trigger_register_simple("h1940-bluetooth", &bt_led_trigger);
#endif

/* disable BT by default */
h1940bt_enable(0);
rfk = rfkill_alloc(DRV_NAME, &pdev->dev, RFKILL_TYPE_BLUETOOTH,
&h1940bt_rfkill_ops, NULL);
if (!rfk) {
ret = -ENOMEM;
goto err_rfk_alloc;
}

rfkill_set_led_trigger_name(rfk, "h1940-bluetooth");

ret = rfkill_register(rfk);
if (ret)
goto err_rfkill;

platform_set_drvdata(pdev, rfk);

return 0;

return device_create_file(&pdev->dev, &dev_attr_enable);
err_rfkill:
rfkill_destroy(rfk);
err_rfk_alloc:
return ret;
}

static int h1940bt_remove(struct platform_device *pdev)
{
#ifdef CONFIG_LEDS_H1940
led_trigger_unregister_simple(bt_led_trigger);
#endif
struct rfkill *rfk = platform_get_drvdata(pdev);

platform_set_drvdata(pdev, NULL);

if (rfk) {
rfkill_unregister(rfk);
rfkill_destroy(rfk);
}
rfk = NULL;

h1940bt_enable(0);

return 0;
}

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