Return to scx200_gpio.h CVS log

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Update 2.6.x-xfs to 2.6.23-rc4.

Also update fs/xfs with external mainline changes.
There were 12 such missing commits that I detected:

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commit ad690ef9e690f6c31f7d310b09ef1314bcec9033
Author: Al Viro <viro@ftp.linux.org.uk>
    xfs ioctl __user annotations

commit 20c2df83d25c6a95affe6157a4c9cac4cf5ffaac
Author: Paul Mundt <lethal@linux-sh.org>
    mm: Remove slab destructors from kmem_cache_create().

commit d0217ac04ca6591841e5665f518e38064f4e65bd
Author: Nick Piggin <npiggin@suse.de>
    mm: fault feedback #1

commit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7
Author: Nick Piggin <npiggin@suse.de>
    mm: merge populate and nopage into fault (fixes nonlinear)

commit d00806b183152af6d24f46f0c33f14162ca1262a
Author: Nick Piggin <npiggin@suse.de>
    mm: fix fault vs invalidate race for linear mappings

commit a569425512253992cc64ebf8b6d00a62f986db3e
Author: Christoph Hellwig <hch@infradead.org>
    knfsd: exportfs: add exportfs.h header

commit 831441862956fffa17b9801db37e6ea1650b0f69
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Freezer: make kernel threads nonfreezable by default

commit 8e1f936b73150f5095448a0fee6d4f30a1f9001d
Author: Rusty Russell <rusty@rustcorp.com.au>
    mm: clean up and kernelify shrinker registration

commit 5ffc4ef45b3b0a57872f631b4e4ceb8ace0d7496
Author: Jens Axboe <jens.axboe@oracle.com>
    sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

commit 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Add suspend-related notifications for CPU hotplug

commit 59c51591a0ac7568824f541f57de967e88adaa07
Author: Michael Opdenacker <michael@free-electrons.com>
    Fix occurrences of "the the "

commit 0ceb331433e8aad9c5f441a965d7c681f8b9046f
Author: Dmitriy Monakhov <dmonakhov@openvz.org>
    mm: move common segment checks to separate helper function
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Merge of 2.6.x-xfs-melb:linux:29656b by kenmcd.

u32 scx200_gpio_configure(unsigned index, u32 set, u32 clear);

extern unsigned scx200_gpio_base;
extern long scx200_gpio_shadow[2];
extern struct nsc_gpio_ops scx200_gpio_ops;

#define scx200_gpio_present() (scx200_gpio_base!=0)

/* Definitions to make sure I do the same thing in all functions */
#define __SCx200_GPIO_BANK unsigned bank = index>>5
#define __SCx200_GPIO_IOADDR unsigned short ioaddr = scx200_gpio_base+0x10*bank
#define __SCx200_GPIO_SHADOW long *shadow = scx200_gpio_shadow+bank
#define __SCx200_GPIO_INDEX index &= 31

#define __SCx200_GPIO_OUT __asm__ __volatile__("outsl":"=mS" (shadow):"d" (ioaddr), "0" (shadow))

/* returns the value of the GPIO pin */

static inline int scx200_gpio_get(unsigned index) {
	__SCx200_GPIO_BANK;
	__SCx200_GPIO_IOADDR + 0x04;
	__SCx200_GPIO_INDEX;
		
	return (inl(ioaddr) & (1<<index)) ? 1 : 0;
}

/* return the value driven on the GPIO signal (the value that will be
   driven if the GPIO is configured as an output, it might not be the
   state of the GPIO right now if the GPIO is configured as an input) */

static inline int scx200_gpio_current(unsigned index) {
        __SCx200_GPIO_BANK;
	__SCx200_GPIO_INDEX;
		
	return (scx200_gpio_shadow[bank] & (1<<index)) ? 1 : 0;
}

/* drive the GPIO signal high */

static inline void scx200_gpio_set_high(unsigned index) {
	__SCx200_GPIO_BANK;
	__SCx200_GPIO_IOADDR;
	__SCx200_GPIO_SHADOW;
	__SCx200_GPIO_INDEX;
	set_bit(index, shadow);
	__SCx200_GPIO_OUT;
}

/* drive the GPIO signal low */

static inline void scx200_gpio_set_low(unsigned index) {
	__SCx200_GPIO_BANK;
	__SCx200_GPIO_IOADDR;
	__SCx200_GPIO_SHADOW;
	__SCx200_GPIO_INDEX;
	clear_bit(index, shadow);
	__SCx200_GPIO_OUT;
}

/* drive the GPIO signal to state */

static inline void scx200_gpio_set(unsigned index, int state) {
	__SCx200_GPIO_BANK;
	__SCx200_GPIO_IOADDR;
	__SCx200_GPIO_SHADOW;
	__SCx200_GPIO_INDEX;
	if (state)
		set_bit(index, shadow);
	else
		clear_bit(index, shadow);
	__SCx200_GPIO_OUT;
}

/* toggle the GPIO signal */
static inline void scx200_gpio_change(unsigned index) {
	__SCx200_GPIO_BANK;
	__SCx200_GPIO_IOADDR;
	__SCx200_GPIO_SHADOW;
	__SCx200_GPIO_INDEX;
	change_bit(index, shadow);
	__SCx200_GPIO_OUT;
}

#undef __SCx200_GPIO_BANK
#undef __SCx200_GPIO_IOADDR
#undef __SCx200_GPIO_SHADOW
#undef __SCx200_GPIO_INDEX
#undef __SCx200_GPIO_OUT