Commit 1d9ef26a authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman

[PATCH] I2C: delete the i2c-elv.c driver as it is obsoleted by the i2c-parport.c driver.

parent 0154f9ec
......@@ -58,17 +58,6 @@ config I2C_ELEKTOR
This support is also available as a module. If so, the module
will be called i2c-elektor.
config I2C_ELV
tristate "ELV adapter"
depends on I2C
select I2C_ALGOBIT
help
This supports parallel-port I2C adapters called ELV. Say Y if you
own such an adapter.
This support is also available as a module. If so, the module
will be called i2c-elv.
config I2C_HYDRA
tristate "CHRP Apple Hydra Mac I/O I2C interface"
depends on I2C && PCI && PPC_CHRP && EXPERIMENTAL
......
......@@ -7,7 +7,6 @@ obj-$(CONFIG_I2C_ALI15X3) += i2c-ali15x3.o
obj-$(CONFIG_I2C_AMD756) += i2c-amd756.o
obj-$(CONFIG_I2C_AMD8111) += i2c-amd8111.o
obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o
obj-$(CONFIG_I2C_ELV) += i2c-elv.o
obj-$(CONFIG_I2C_HYDRA) += i2c-hydra.o
obj-$(CONFIG_I2C_I801) += i2c-i801.o
obj-$(CONFIG_I2C_I810) += i2c-i810.o
......
/* ------------------------------------------------------------------------- */
/* i2c-elv.c i2c-hw access for philips style parallel port adapters */
/* ------------------------------------------------------------------------- */
/* Copyright (C) 1995-2000 Simon G. Vogl
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* ------------------------------------------------------------------------- */
/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
Frodo Looijaard <frodol@dds.nl> */
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/errno.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <asm/io.h>
#define DEFAULT_BASE 0x378
static long base=0;
static unsigned char port_data = 0;
/* --- Convenience defines for the parallel port: */
#define BASE (unsigned long)(data)
#define DATA BASE /* Centronics data port */
#define STAT (BASE+1) /* Centronics status port */
#define CTRL (BASE+2) /* Centronics control port */
/* ----- local functions ---------------------------------------------- */
static void bit_elv_setscl(void *data, int state)
{
if (state) {
port_data &= 0xfe;
} else {
port_data |=1;
}
outb(port_data, DATA);
}
static void bit_elv_setsda(void *data, int state)
{
if (state) {
port_data &=0xfd;
} else {
port_data |=2;
}
outb(port_data, DATA);
}
static int bit_elv_getscl(void *data)
{
return ( 0 == ( (inb_p(STAT)) & 0x08 ) );
}
static int bit_elv_getsda(void *data)
{
return ( 0 == ( (inb_p(STAT)) & 0x40 ) );
}
static int bit_elv_init(void)
{
if (!request_region(base, (base == 0x3bc) ? 3 : 8,
"i2c (ELV adapter)"))
return -ENODEV;
if (inb(base+1) & 0x80) { /* BUSY should be high */
pr_debug("i2c-elv: Busy was low.\n");
goto fail;
}
outb(0x0c,base+2); /* SLCT auf low */
udelay(400);
if (!(inb(base+1) && 0x10)) {
outb(0x04,base+2);
pr_debug("i2c-elv: Select was high.\n");
goto fail;
}
port_data = 0;
bit_elv_setsda((void*)base,1);
bit_elv_setscl((void*)base,1);
return 0;
fail:
release_region(base , (base == 0x3bc) ? 3 : 8);
return -ENODEV;
}
/* ------------------------------------------------------------------------
* Encapsulate the above functions in the correct operations structure.
* This is only done when more than one hardware adapter is supported.
*/
static struct i2c_algo_bit_data bit_elv_data = {
.setsda = bit_elv_setsda,
.setscl = bit_elv_setscl,
.getsda = bit_elv_getsda,
.getscl = bit_elv_getscl,
.udelay = 80,
.mdelay = 80,
.timeout = HZ
};
static struct i2c_adapter bit_elv_ops = {
.owner = THIS_MODULE,
.algo_data = &bit_elv_data,
.name = "ELV Parallel port adaptor",
};
static int __init i2c_bitelv_init(void)
{
printk(KERN_INFO "i2c ELV parallel port adapter driver\n");
if (base==0) {
/* probe some values */
base=DEFAULT_BASE;
bit_elv_data.data=(void*)DEFAULT_BASE;
if (bit_elv_init()==0) {
if(i2c_bit_add_bus(&bit_elv_ops) < 0)
return -ENODEV;
} else {
return -ENODEV;
}
} else {
i2c_set_adapdata(&bit_elv_ops, (void *)base);
if (bit_elv_init()==0) {
if(i2c_bit_add_bus(&bit_elv_ops) < 0)
return -ENODEV;
} else {
return -ENODEV;
}
}
pr_debug("i2c-elv: found device at %#lx.\n",base);
return 0;
}
static void __exit i2c_bitelv_exit(void)
{
i2c_bit_del_bus(&bit_elv_ops);
release_region(base , (base == 0x3bc) ? 3 : 8);
}
MODULE_AUTHOR("Simon G. Vogl <simon@tk.uni-linz.ac.at>");
MODULE_DESCRIPTION("I2C-Bus adapter routines for ELV parallel port adapter");
MODULE_LICENSE("GPL");
MODULE_PARM(base, "i");
module_init(i2c_bitelv_init);
module_exit(i2c_bitelv_exit);
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