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[PATCH] chardev: GPIO for SCx200 & PC-8736x: migrate gpio_dump to common module

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Since the meaning of config-bits is the same for scx200 and pc8736x _gpios, we
can share a function to deliver this to user.  Since it is called via the
vtable, its also completely replaceable.  For now, we keep using printk...

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jim Cromie
2006-06-27 02:54:20 -07:00
committed by Linus Torvalds
parent 1a66fdf083
commit 0e41ef3c51
3 changed files with 17 additions and 19 deletions
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16
drivers/char/nsc_gpio.c
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@@ -19,6 +19,19 @@
#define NAME "nsc_gpio"
void nsc_gpio_dump(unsigned index, u32 config)
{
printk(KERN_INFO NAME ": GPIO-%02u: 0x%08lx %s %s %s %s %s %s %s\n",
index, (unsigned long)config,
(config & 1) ? "OE" : "TS", /* output-enabled/tristate */
(config & 2) ? "PP" : "OD", /* push pull / open drain */
(config & 4) ? "PUE" : "PUD", /* pull up enabled/disabled */
(config & 8) ? "LOCKED" : "", /* locked / unlocked */
(config & 16) ? "LEVEL" : "EDGE",/* level/edge input */
(config & 32) ? "HI" : "LO", /* trigger on rise/fall edge */
(config & 64) ? "DEBOUNCE" : ""); /* debounce */
}
ssize_t nsc_gpio_write(struct file *file, const char __user *data,
size_t len, loff_t *ppos)
{
@@ -99,9 +112,10 @@ ssize_t nsc_gpio_read(struct file *file, char __user * buf,
return 1;
}
/* common routines for both scx200_gpio and pc87360_gpio */
/* common file-ops routines for both scx200_gpio and pc87360_gpio */
EXPORT_SYMBOL(nsc_gpio_write);
EXPORT_SYMBOL(nsc_gpio_read);
EXPORT_SYMBOL(nsc_gpio_dump);
static int __init nsc_gpio_init(void)
{