linux/arch/arm/mach-s3c24xx/h1940-bluetooth.c
Olof Johansson 5b399db0b7 Merge branch 'next/cleanup-header' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
From Kukjin Kim:
AS I commented, this makes <mach/*.h> local so that they could be removed.

* 'next/cleanup-header' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (26 commits)
  ARM: S3C64XX: Fix missing header error with CONFIG_CPU_IDLE enabled
  ARM: S3C64XX: make regs-syscon-power.h local
  ARM: S3C64XX: make regs-sys.h local
  ARM: S3C64XX: make regs-srom.h local
  ARM: S3C64XX: make regs-modem.h local
  ARM: S3C64XX: make regs-gpio-memport.h local
  ARM: S3C64XX: make crag6410.h local
  ARM: S3C24XX: remove dsc.c and make regs-dsc.h local
  ARM: S3C24XX: remove idle.h
  ARM: S3C2412: cleanup regs-s3c2412.h
  ARM: S3C2416: remove regs-s3c2416-mem.h and regs-s3c2416.h
  ARM: S3C24XX: make vr1000-cpld.h, vr1000-irq.h and vr1000-map.h local
  ARM: S3C24XX: make otom-map.h local
  ARM: S3C24XX: make osiris-cpld.h and osiris-map.h local
  ARM: S3C24XX: make h1940.h and h1940-latch.h local
  ARM: S3C24XX: make gta02.h local
  ARM: S3C24XX: make bast-cpld.h, bast-irq.h and bast-map.h local
  ARM: S3C24XX: make anubis-cpld, anubis-irq and anubis-map local
  ARM: SAMSUNG: cleanup mach/gpio-fns.h gpio-track.h and gpio-nrs.h
  ARM: SAMSUNG: cleanup mach/regs-audss.h file
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-04 21:49:29 -08:00

146 lines
3.2 KiB
C

/*
* arch/arm/mach-s3c2410/h1940-bluetooth.c
* Copyright (c) Arnaud Patard <arnaud.patard@rtp-net.org>
*
* 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 <linux/gpio.h>
#include <linux/rfkill.h>
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
#include "h1940.h"
#define DRV_NAME "h1940-bt"
/* Bluetooth control */
static void h1940bt_enable(int on)
{
if (on) {
/* Power on the chip */
gpio_set_value(H1940_LATCH_BLUETOOTH_POWER, 1);
/* Reset the chip */
mdelay(10);
gpio_set_value(S3C2410_GPH(1), 1);
mdelay(10);
gpio_set_value(S3C2410_GPH(1), 0);
h1940_led_blink_set(-EINVAL, GPIO_LED_BLINK, NULL, NULL);
}
else {
gpio_set_value(S3C2410_GPH(1), 1);
mdelay(10);
gpio_set_value(S3C2410_GPH(1), 0);
mdelay(10);
gpio_set_value(H1940_LATCH_BLUETOOTH_POWER, 0);
h1940_led_blink_set(-EINVAL, GPIO_LED_NO_BLINK_LOW, NULL, NULL);
}
}
static int h1940bt_set_block(void *data, bool blocked)
{
h1940bt_enable(!blocked);
return 0;
}
static const struct rfkill_ops h1940bt_rfkill_ops = {
.set_block = h1940bt_set_block,
};
static int h1940bt_probe(struct platform_device *pdev)
{
struct rfkill *rfk;
int ret = 0;
ret = gpio_request(S3C2410_GPH(1), dev_name(&pdev->dev));
if (ret) {
dev_err(&pdev->dev, "could not get GPH1\n");
return ret;
}
ret = gpio_request(H1940_LATCH_BLUETOOTH_POWER, dev_name(&pdev->dev));
if (ret) {
gpio_free(S3C2410_GPH(1));
dev_err(&pdev->dev, "could not get BT_POWER\n");
return ret;
}
/* Configures BT serial port GPIOs */
s3c_gpio_cfgpin(S3C2410_GPH(0), S3C2410_GPH0_nCTS0);
s3c_gpio_setpull(S3C2410_GPH(0), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(S3C2410_GPH(1), S3C2410_GPIO_OUTPUT);
s3c_gpio_setpull(S3C2410_GPH(1), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(S3C2410_GPH(2), S3C2410_GPH2_TXD0);
s3c_gpio_setpull(S3C2410_GPH(2), S3C_GPIO_PULL_NONE);
s3c_gpio_cfgpin(S3C2410_GPH(3), S3C2410_GPH3_RXD0);
s3c_gpio_setpull(S3C2410_GPH(3), S3C_GPIO_PULL_NONE);
rfk = rfkill_alloc(DRV_NAME, &pdev->dev, RFKILL_TYPE_BLUETOOTH,
&h1940bt_rfkill_ops, NULL);
if (!rfk) {
ret = -ENOMEM;
goto err_rfk_alloc;
}
ret = rfkill_register(rfk);
if (ret)
goto err_rfkill;
platform_set_drvdata(pdev, rfk);
return 0;
err_rfkill:
rfkill_destroy(rfk);
err_rfk_alloc:
return ret;
}
static int h1940bt_remove(struct platform_device *pdev)
{
struct rfkill *rfk = platform_get_drvdata(pdev);
platform_set_drvdata(pdev, NULL);
gpio_free(S3C2410_GPH(1));
if (rfk) {
rfkill_unregister(rfk);
rfkill_destroy(rfk);
}
rfk = NULL;
h1940bt_enable(0);
return 0;
}
static struct platform_driver h1940bt_driver = {
.driver = {
.name = DRV_NAME,
},
.probe = h1940bt_probe,
.remove = h1940bt_remove,
};
module_platform_driver(h1940bt_driver);
MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
MODULE_DESCRIPTION("Driver for the iPAQ H1940 bluetooth chip");
MODULE_LICENSE("GPL");