Re: [PATCH] i2c driver fixes for 2.6.0-test5
From: Greg KH
Date: Mon Sep 22 2003 - 19:09:23 EST
ChangeSet 1.1315.1.17, 2003/09/22 13:20:35-07:00, greg@xxxxxxxxx
[PATCH] I2C: move the i2c-philips-par driver to drivers/i2c/busses
drivers/i2c/i2c-philips-par.c | 256 -----------------------------------
drivers/i2c/Kconfig | 10 -
drivers/i2c/Makefile | 1
drivers/i2c/busses/Kconfig | 9 +
drivers/i2c/busses/Makefile | 1
drivers/i2c/busses/i2c-philips-par.c | 256 +++++++++++++++++++++++++++++++++++
6 files changed, 266 insertions(+), 267 deletions(-)
diff -Nru a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
--- a/drivers/i2c/Kconfig Mon Sep 22 16:13:17 2003
+++ b/drivers/i2c/Kconfig Mon Sep 22 16:13:17 2003
@@ -48,16 +48,6 @@
This support is also available as a module. If so, the module
will be called i2c-algo-bit.
-config I2C_PHILIPSPAR
- tristate "Philips style parallel port adapter"
- depends on I2C_ALGOBIT && PARPORT
- ---help---
- This supports parallel-port I2C adapters made by Philips. Say Y if
- you own such an adapter.
-
- This support is also available as a module. If so, the module
- will be called i2c-philips-par.
-
config I2C_ELV
tristate "ELV adapter"
depends on I2C_ALGOBIT && ISA
diff -Nru a/drivers/i2c/Makefile b/drivers/i2c/Makefile
--- a/drivers/i2c/Makefile Mon Sep 22 16:13:17 2003
+++ b/drivers/i2c/Makefile Mon Sep 22 16:13:17 2003
@@ -5,7 +5,6 @@
obj-$(CONFIG_I2C) += i2c-core.o
obj-$(CONFIG_I2C_CHARDEV) += i2c-dev.o
obj-$(CONFIG_I2C_ALGOBIT) += i2c-algo-bit.o
-obj-$(CONFIG_I2C_PHILIPSPAR) += i2c-philips-par.o
obj-$(CONFIG_I2C_ELV) += i2c-elv.o
obj-$(CONFIG_I2C_VELLEMAN) += i2c-velleman.o
obj-$(CONFIG_I2C_ALGOPCF) += i2c-algo-pcf.o
diff -Nru a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
--- a/drivers/i2c/busses/Kconfig Mon Sep 22 16:13:17 2003
+++ b/drivers/i2c/busses/Kconfig Mon Sep 22 16:13:17 2003
@@ -97,6 +97,15 @@
This driver can also be built as a module. If so, the module
will be called i2c-nforce2.
+config I2C_PHILIPSPAR
+ tristate "Philips style parallel port adapter"
+ depends on I2C_ALGOBIT && PARPORT
+ help
+ This supports parallel-port I2C adapters made by Philips.
+
+ This support is also available as a module. If so, the module
+ will be called i2c-philips-par.
+
config I2C_PIIX4
tristate "Intel PIIX4"
depends on I2C && PCI && EXPERIMENTAL
diff -Nru a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
--- a/drivers/i2c/busses/Makefile Mon Sep 22 16:13:17 2003
+++ b/drivers/i2c/busses/Makefile Mon Sep 22 16:13:17 2003
@@ -10,6 +10,7 @@
obj-$(CONFIG_I2C_I810) += i2c-i810.o
obj-$(CONFIG_I2C_ISA) += i2c-isa.o
obj-$(CONFIG_I2C_NFORCE2) += i2c-nforce2.o
+obj-$(CONFIG_I2C_PHILIPSPAR) += i2c-philips-par.o
obj-$(CONFIG_I2C_PIIX4) += i2c-piix4.o
obj-$(CONFIG_I2C_PROSAVAGE) += i2c-prosavage.o
obj-$(CONFIG_I2C_SAVAGE4) += i2c-savage4.o
diff -Nru a/drivers/i2c/busses/i2c-philips-par.c b/drivers/i2c/busses/i2c-philips-par.c
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/drivers/i2c/busses/i2c-philips-par.c Mon Sep 22 16:13:17 2003
@@ -0,0 +1,256 @@
+/* ------------------------------------------------------------------------- */
+/* i2c-philips-par.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@xxxxxxxxx> and even
+ Frodo Looijaard <frodol@xxxxxx> */
+
+/* $Id: i2c-philips-par.c,v 1.29 2003/01/21 08:08:16 kmalkki Exp $ */
+
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/stddef.h>
+#include <linux/parport.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+
+static int type;
+
+struct i2c_par
+{
+ struct pardevice *pdev;
+ struct i2c_adapter adapter;
+ struct i2c_algo_bit_data bit_lp_data;
+ struct i2c_par *next;
+};
+
+static struct i2c_par *adapter_list;
+
+
+/* ----- 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 */
+
+/* ----- printer port defines ------------------------------------------*/
+ /* Pin Port Inverted name */
+#define I2C_ON 0x20 /* 12 status N paper */
+ /* ... only for phil. not used */
+#define I2C_SDA 0x80 /* 9 data N data7 */
+#define I2C_SCL 0x08 /* 17 ctrl N dsel */
+
+#define I2C_SDAIN 0x80 /* 11 stat Y busy */
+#define I2C_SCLIN 0x08 /* 15 stat Y enable */
+
+#define I2C_DMASK 0x7f
+#define I2C_CMASK 0xf7
+
+/* ----- local functions ---------------------------------------------- */
+
+static void bit_lp_setscl(void *data, int state)
+{
+ /*be cautious about state of the control register -
+ touch only the one bit needed*/
+ if (state) {
+ parport_write_control((struct parport *) data,
+ parport_read_control((struct parport *) data)|I2C_SCL);
+ } else {
+ parport_write_control((struct parport *) data,
+ parport_read_control((struct parport *) data)&I2C_CMASK);
+ }
+}
+
+static void bit_lp_setsda(void *data, int state)
+{
+ if (state) {
+ parport_write_data((struct parport *) data, I2C_DMASK);
+ } else {
+ parport_write_data((struct parport *) data, I2C_SDA);
+ }
+}
+
+static int bit_lp_getscl(void *data)
+{
+ return parport_read_status((struct parport *) data) & I2C_SCLIN;
+}
+
+static int bit_lp_getsda(void *data)
+{
+ return parport_read_status((struct parport *) data) & I2C_SDAIN;
+}
+
+static void bit_lp_setscl2(void *data, int state)
+{
+ if (state) {
+ parport_write_data((struct parport *) data,
+ parport_read_data((struct parport *) data)|0x1);
+ } else {
+ parport_write_data((struct parport *) data,
+ parport_read_data((struct parport *) data)&0xfe);
+ }
+}
+
+static void bit_lp_setsda2(void *data, int state)
+{
+ if (state) {
+ parport_write_data((struct parport *) data,
+ parport_read_data((struct parport *) data)|0x2);
+ } else {
+ parport_write_data((struct parport *) data,
+ parport_read_data((struct parport *) data)&0xfd);
+ }
+}
+
+static int bit_lp_getsda2(void *data)
+{
+ return (parport_read_status((struct parport *) data) &
+ PARPORT_STATUS_BUSY) ? 0 : 1;
+}
+
+/* ------------------------------------------------------------------------
+ * 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_lp_data = {
+ .setsda = bit_lp_setsda,
+ .setscl = bit_lp_setscl,
+ .getsda = bit_lp_getsda,
+ .getscl = bit_lp_getscl,
+ .udelay = 80,
+ .mdelay = 80,
+ .timeout = HZ
+};
+
+static struct i2c_algo_bit_data bit_lp_data2 = {
+ .setsda = bit_lp_setsda2,
+ .setscl = bit_lp_setscl2,
+ .getsda = bit_lp_getsda2,
+ .udelay = 80,
+ .mdelay = 80,
+ .timeout = HZ
+};
+
+static struct i2c_adapter bit_lp_ops = {
+ .owner = THIS_MODULE,
+ .id = I2C_HW_B_LP,
+ .name = "Philips Parallel port adapter",
+};
+
+static void i2c_parport_attach (struct parport *port)
+{
+ struct i2c_par *adapter = kmalloc(sizeof(struct i2c_par),
+ GFP_KERNEL);
+ if (!adapter) {
+ printk(KERN_ERR "i2c-philips-par: Unable to malloc.\n");
+ return;
+ }
+
+ printk(KERN_DEBUG "i2c-philips-par.o: attaching to %s\n", port->name);
+
+ adapter->pdev = parport_register_device(port, "i2c-philips-par",
+ NULL, NULL, NULL,
+ PARPORT_FLAG_EXCL,
+ NULL);
+ if (!adapter->pdev) {
+ printk(KERN_ERR "i2c-philips-par: Unable to register with parport.\n");
+ kfree(adapter);
+ return;
+ }
+
+ adapter->adapter = bit_lp_ops;
+ adapter->adapter.algo_data = &adapter->bit_lp_data;
+ adapter->bit_lp_data = type ? bit_lp_data2 : bit_lp_data;
+ adapter->bit_lp_data.data = port;
+
+ if (parport_claim_or_block(adapter->pdev) < 0 ) {
+ printk(KERN_ERR "i2c-philips-par: Could not claim parallel port.\n");
+ kfree(adapter);
+ return;
+ }
+ /* reset hardware to sane state */
+ bit_lp_setsda(port, 1);
+ bit_lp_setscl(port, 1);
+ parport_release(adapter->pdev);
+
+ if (i2c_bit_add_bus(&adapter->adapter) < 0)
+ {
+ printk(KERN_ERR "i2c-philips-par: Unable to register with I2C.\n");
+ parport_unregister_device(adapter->pdev);
+ kfree(adapter);
+ return; /* No good */
+ }
+
+ adapter->next = adapter_list;
+ adapter_list = adapter;
+}
+
+static void i2c_parport_detach (struct parport *port)
+{
+ struct i2c_par *adapter, *prev = NULL;
+
+ for (adapter = adapter_list; adapter; adapter = adapter->next)
+ {
+ if (adapter->pdev->port == port)
+ {
+ parport_unregister_device(adapter->pdev);
+ i2c_bit_del_bus(&adapter->adapter);
+ if (prev)
+ prev->next = adapter->next;
+ else
+ adapter_list = adapter->next;
+ kfree(adapter);
+ return;
+ }
+ prev = adapter;
+ }
+}
+
+
+static struct parport_driver i2c_driver = {
+ "i2c-philips-par",
+ i2c_parport_attach,
+ i2c_parport_detach,
+ NULL
+};
+
+int __init i2c_bitlp_init(void)
+{
+ printk(KERN_INFO "i2c-philips-par.o: i2c Philips parallel port adapter module version %s (%s)\n", I2C_VERSION, I2C_DATE);
+
+ parport_register_driver(&i2c_driver);
+
+ return 0;
+}
+
+void __exit i2c_bitlp_exit(void)
+{
+ parport_unregister_driver(&i2c_driver);
+}
+
+MODULE_AUTHOR("Simon G. Vogl <simon@xxxxxxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("I2C-Bus adapter routines for Philips parallel port adapter");
+MODULE_LICENSE("GPL");
+
+MODULE_PARM(type, "i");
+
+module_init(i2c_bitlp_init);
+module_exit(i2c_bitlp_exit);
diff -Nru a/drivers/i2c/i2c-philips-par.c b/drivers/i2c/i2c-philips-par.c
--- a/drivers/i2c/i2c-philips-par.c Mon Sep 22 16:13:17 2003
+++ /dev/null Wed Dec 31 16:00:00 1969
@@ -1,256 +0,0 @@
-/* ------------------------------------------------------------------------- */
-/* i2c-philips-par.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@xxxxxxxxx> and even
- Frodo Looijaard <frodol@xxxxxx> */
-
-/* $Id: i2c-philips-par.c,v 1.29 2003/01/21 08:08:16 kmalkki Exp $ */
-
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/stddef.h>
-#include <linux/parport.h>
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-
-static int type;
-
-struct i2c_par
-{
- struct pardevice *pdev;
- struct i2c_adapter adapter;
- struct i2c_algo_bit_data bit_lp_data;
- struct i2c_par *next;
-};
-
-static struct i2c_par *adapter_list;
-
-
-/* ----- 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 */
-
-/* ----- printer port defines ------------------------------------------*/
- /* Pin Port Inverted name */
-#define I2C_ON 0x20 /* 12 status N paper */
- /* ... only for phil. not used */
-#define I2C_SDA 0x80 /* 9 data N data7 */
-#define I2C_SCL 0x08 /* 17 ctrl N dsel */
-
-#define I2C_SDAIN 0x80 /* 11 stat Y busy */
-#define I2C_SCLIN 0x08 /* 15 stat Y enable */
-
-#define I2C_DMASK 0x7f
-#define I2C_CMASK 0xf7
-
-/* ----- local functions ---------------------------------------------- */
-
-static void bit_lp_setscl(void *data, int state)
-{
- /*be cautious about state of the control register -
- touch only the one bit needed*/
- if (state) {
- parport_write_control((struct parport *) data,
- parport_read_control((struct parport *) data)|I2C_SCL);
- } else {
- parport_write_control((struct parport *) data,
- parport_read_control((struct parport *) data)&I2C_CMASK);
- }
-}
-
-static void bit_lp_setsda(void *data, int state)
-{
- if (state) {
- parport_write_data((struct parport *) data, I2C_DMASK);
- } else {
- parport_write_data((struct parport *) data, I2C_SDA);
- }
-}
-
-static int bit_lp_getscl(void *data)
-{
- return parport_read_status((struct parport *) data) & I2C_SCLIN;
-}
-
-static int bit_lp_getsda(void *data)
-{
- return parport_read_status((struct parport *) data) & I2C_SDAIN;
-}
-
-static void bit_lp_setscl2(void *data, int state)
-{
- if (state) {
- parport_write_data((struct parport *) data,
- parport_read_data((struct parport *) data)|0x1);
- } else {
- parport_write_data((struct parport *) data,
- parport_read_data((struct parport *) data)&0xfe);
- }
-}
-
-static void bit_lp_setsda2(void *data, int state)
-{
- if (state) {
- parport_write_data((struct parport *) data,
- parport_read_data((struct parport *) data)|0x2);
- } else {
- parport_write_data((struct parport *) data,
- parport_read_data((struct parport *) data)&0xfd);
- }
-}
-
-static int bit_lp_getsda2(void *data)
-{
- return (parport_read_status((struct parport *) data) &
- PARPORT_STATUS_BUSY) ? 0 : 1;
-}
-
-/* ------------------------------------------------------------------------
- * 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_lp_data = {
- .setsda = bit_lp_setsda,
- .setscl = bit_lp_setscl,
- .getsda = bit_lp_getsda,
- .getscl = bit_lp_getscl,
- .udelay = 80,
- .mdelay = 80,
- .timeout = HZ
-};
-
-static struct i2c_algo_bit_data bit_lp_data2 = {
- .setsda = bit_lp_setsda2,
- .setscl = bit_lp_setscl2,
- .getsda = bit_lp_getsda2,
- .udelay = 80,
- .mdelay = 80,
- .timeout = HZ
-};
-
-static struct i2c_adapter bit_lp_ops = {
- .owner = THIS_MODULE,
- .id = I2C_HW_B_LP,
- .name = "Philips Parallel port adapter",
-};
-
-static void i2c_parport_attach (struct parport *port)
-{
- struct i2c_par *adapter = kmalloc(sizeof(struct i2c_par),
- GFP_KERNEL);
- if (!adapter) {
- printk(KERN_ERR "i2c-philips-par: Unable to malloc.\n");
- return;
- }
-
- printk(KERN_DEBUG "i2c-philips-par.o: attaching to %s\n", port->name);
-
- adapter->pdev = parport_register_device(port, "i2c-philips-par",
- NULL, NULL, NULL,
- PARPORT_FLAG_EXCL,
- NULL);
- if (!adapter->pdev) {
- printk(KERN_ERR "i2c-philips-par: Unable to register with parport.\n");
- kfree(adapter);
- return;
- }
-
- adapter->adapter = bit_lp_ops;
- adapter->adapter.algo_data = &adapter->bit_lp_data;
- adapter->bit_lp_data = type ? bit_lp_data2 : bit_lp_data;
- adapter->bit_lp_data.data = port;
-
- if (parport_claim_or_block(adapter->pdev) < 0 ) {
- printk(KERN_ERR "i2c-philips-par: Could not claim parallel port.\n");
- kfree(adapter);
- return;
- }
- /* reset hardware to sane state */
- bit_lp_setsda(port, 1);
- bit_lp_setscl(port, 1);
- parport_release(adapter->pdev);
-
- if (i2c_bit_add_bus(&adapter->adapter) < 0)
- {
- printk(KERN_ERR "i2c-philips-par: Unable to register with I2C.\n");
- parport_unregister_device(adapter->pdev);
- kfree(adapter);
- return; /* No good */
- }
-
- adapter->next = adapter_list;
- adapter_list = adapter;
-}
-
-static void i2c_parport_detach (struct parport *port)
-{
- struct i2c_par *adapter, *prev = NULL;
-
- for (adapter = adapter_list; adapter; adapter = adapter->next)
- {
- if (adapter->pdev->port == port)
- {
- parport_unregister_device(adapter->pdev);
- i2c_bit_del_bus(&adapter->adapter);
- if (prev)
- prev->next = adapter->next;
- else
- adapter_list = adapter->next;
- kfree(adapter);
- return;
- }
- prev = adapter;
- }
-}
-
-
-static struct parport_driver i2c_driver = {
- "i2c-philips-par",
- i2c_parport_attach,
- i2c_parport_detach,
- NULL
-};
-
-int __init i2c_bitlp_init(void)
-{
- printk(KERN_INFO "i2c-philips-par.o: i2c Philips parallel port adapter module version %s (%s)\n", I2C_VERSION, I2C_DATE);
-
- parport_register_driver(&i2c_driver);
-
- return 0;
-}
-
-void __exit i2c_bitlp_exit(void)
-{
- parport_unregister_driver(&i2c_driver);
-}
-
-MODULE_AUTHOR("Simon G. Vogl <simon@xxxxxxxxxxxxxxxxx>");
-MODULE_DESCRIPTION("I2C-Bus adapter routines for Philips parallel port adapter");
-MODULE_LICENSE("GPL");
-
-MODULE_PARM(type, "i");
-
-module_init(i2c_bitlp_init);
-module_exit(i2c_bitlp_exit);
-
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