[ARM] 4359/3: H1940: Add bluetooth support (7fdc7849) · Commits · 戴 / test

arch/arm/mach-s3c2410/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -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

arch/arm/mach-s3c2410/h1940-bluetooth.c

0 → 100644

+142 −0

Original line number	Diff line number	Diff line
		/*
		* 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 <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 <arnaud.patard@rtp-net.org>");
		MODULE_DESCRIPTION("Driver for the iPAQ H1940 bluetooth chip");
		MODULE_LICENSE("GPL");

arch/arm/mach-s3c2410/mach-h1940.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -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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