This support is also available as a module. If so, the module
will be called i2c-algo-bit.
-config I2C_ELV
- tristate "ELV adapter"
- depends on I2C_ALGOBIT && ISA
- 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_VELLEMAN
tristate "Velleman K9000 adapter"
depends on I2C_ALGOBIT && ISA
obj-$(CONFIG_I2C) += i2c-core.o
obj-$(CONFIG_I2C_CHARDEV) += i2c-dev.o
obj-$(CONFIG_I2C_ALGOBIT) += i2c-algo-bit.o
-obj-$(CONFIG_I2C_ELV) += i2c-elv.o
obj-$(CONFIG_I2C_VELLEMAN) += i2c-velleman.o
obj-$(CONFIG_I2C_ALGOPCF) += i2c-algo-pcf.o
obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o
This driver can also be built as a module. If so, the module
will be called i2c-amd8111.
+config I2C_ELV
+ tristate "ELV adapter"
+ depends on I2C_ALGOBIT && ISA
+ help
+ This supports parallel-port I2C adapters called ELV. Say Y if you
+ own such an adapter.
+
+ This support is also available as a module. If so, the module
+ will be called i2c-elv.
+
config I2C_I801
tristate "Intel 801"
depends on I2C && PCI && EXPERIMENTAL
obj-$(CONFIG_I2C_ALI15X3) += i2c-ali15x3.o
obj-$(CONFIG_I2C_AMD756) += i2c-amd756.o
obj-$(CONFIG_I2C_AMD8111) += i2c-amd8111.o
+obj-$(CONFIG_I2C_ELV) += i2c-elv.o
obj-$(CONFIG_I2C_I801) += i2c-i801.o
obj-$(CONFIG_I2C_I810) += i2c-i810.o
obj-$(CONFIG_I2C_ISA) += i2c-isa.o
--- /dev/null
+/* ------------------------------------------------------------------------- */
+/* 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> */
+
+/* $Id: i2c-elv.c,v 1.27 2003/01/21 08:08:16 kmalkki Exp $ */
+
+#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 int base=0;
+static unsigned char PortData = 0;
+
+/* ----- global defines ----------------------------------------------- */
+#define DEB(x) /* should be reasonable open, close &c. */
+#define DEB2(x) /* low level debugging - very slow */
+#define DEBE(x) x /* error messages */
+#define DEBINIT(x) x /* detection status messages */
+
+/* --- Convenience defines for the parallel port: */
+#define BASE (unsigned int)(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) {
+ PortData &= 0xfe;
+ } else {
+ PortData |=1;
+ }
+ outb(PortData, DATA);
+}
+
+static void bit_elv_setsda(void *data, int state)
+{
+ if (state) {
+ PortData &=0xfd;
+ } else {
+ PortData |=2;
+ }
+ outb(PortData, 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 */
+ DEBINIT(printk(KERN_DEBUG "i2c-elv.o: Busy was low.\n"));
+ goto fail;
+ }
+
+ outb(0x0c,base+2); /* SLCT auf low */
+ udelay(400);
+ if (!(inb(base+1) && 0x10)) {
+ outb(0x04,base+2);
+ DEBINIT(printk(KERN_DEBUG "i2c-elv.o: Select was high.\n"));
+ goto fail;
+ }
+
+ PortData = 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,
+ .id = I2C_HW_B_ELV,
+ .algo_data = &bit_elv_data,
+ .name = "ELV Parallel port adaptor",
+};
+
+static int __init i2c_bitelv_init(void)
+{
+ printk(KERN_INFO "i2c-elv.o: i2c ELV parallel port adapter module version %s (%s)\n", I2C_VERSION, I2C_DATE);
+ 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;
+ }
+ }
+ printk(KERN_DEBUG "i2c-elv.o: found device at %#x.\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);
+++ /dev/null
-/* ------------------------------------------------------------------------- */
-/* 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> */
-
-/* $Id: i2c-elv.c,v 1.27 2003/01/21 08:08:16 kmalkki Exp $ */
-
-#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 int base=0;
-static unsigned char PortData = 0;
-
-/* ----- global defines ----------------------------------------------- */
-#define DEB(x) /* should be reasonable open, close &c. */
-#define DEB2(x) /* low level debugging - very slow */
-#define DEBE(x) x /* error messages */
-#define DEBINIT(x) x /* detection status messages */
-
-/* --- Convenience defines for the parallel port: */
-#define BASE (unsigned int)(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) {
- PortData &= 0xfe;
- } else {
- PortData |=1;
- }
- outb(PortData, DATA);
-}
-
-static void bit_elv_setsda(void *data, int state)
-{
- if (state) {
- PortData &=0xfd;
- } else {
- PortData |=2;
- }
- outb(PortData, 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 */
- DEBINIT(printk(KERN_DEBUG "i2c-elv.o: Busy was low.\n"));
- goto fail;
- }
-
- outb(0x0c,base+2); /* SLCT auf low */
- udelay(400);
- if (!(inb(base+1) && 0x10)) {
- outb(0x04,base+2);
- DEBINIT(printk(KERN_DEBUG "i2c-elv.o: Select was high.\n"));
- goto fail;
- }
-
- PortData = 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,
- .id = I2C_HW_B_ELV,
- .algo_data = &bit_elv_data,
- .name = "ELV Parallel port adaptor",
-};
-
-static int __init i2c_bitelv_init(void)
-{
- printk(KERN_INFO "i2c-elv.o: i2c ELV parallel port adapter module version %s (%s)\n", I2C_VERSION, I2C_DATE);
- 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;
- }
- }
- printk(KERN_DEBUG "i2c-elv.o: found device at %#x.\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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