[PATCH] w1: Replace dscore and ds_w1_bridge with ds2490 driver.

Documentation/w1/masters/ds2490

+Kernel driver ds2490
+====================
+
+Supported chips:
+  * Maxim DS2490 based
+
+Author: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+
+
+Description
+-----------
+
+The Maixm/Dallas Semiconductor DS2490 is a chip
+which allows to build USB <-> W1 bridges.
+
+DS9490(R) is a USB <-> W1 bus master device
+which has 0x81 family ID integrated chip and DS2490
+low-level operational chip.

drivers/w1/masters/Kconfig

@@ -15,24 +15,15 @@ config W1_MASTER_MATROX
 	  This support is also available as a module.  If so, the module
 	  will be called matrox_w1.ko.
 
-config W1_MASTER_DS9490
-	tristate "DS9490R transport layer driver"
-	depends on W1 && USB
-	help
-	  Say Y here if you want to have a driver for DS9490R UWB <-> W1 bridge.
-
-	  This support is also available as a module.  If so, the module
-	  will be called ds9490r.ko.
-
-config W1_MASTER_DS9490_BRIDGE
-	tristate "DS9490R USB <-> W1 transport layer for 1-wire"
-	depends on W1_MASTER_DS9490
-	help
-	  Say Y here if you want to communicate with your 1-wire devices
-	  using DS9490R USB bridge.
-
-	  This support is also available as a module.  If so, the module
-	  will be called ds_w1_bridge.ko.
+config W1_MASTER_DS2490
+	tristate "DS2490 USB <-> W1 transport layer for 1-wire"
+  	depends on W1 && USB
+  	help
+	  Say Y here if you want to have a driver for DS2490 based USB <-> W1 bridges,
+	  for example DS9490*.
+
+  	  This support is also available as a module.  If so, the module
+	  will be called ds2490.ko.
 
 config W1_MASTER_DS2482
 	tristate "Maxim DS2482 I2C to 1-Wire bridge"

drivers/w1/masters/Makefile

@@ -3,11 +3,6 @@
 #
 
 obj-$(CONFIG_W1_MASTER_MATROX)		+= matrox_w1.o
-
-obj-$(CONFIG_W1_MASTER_DS9490)		+= ds9490r.o
-ds9490r-objs    := dscore.o
-
-obj-$(CONFIG_W1_MASTER_DS9490_BRIDGE)	+= ds_w1_bridge.o
-
+obj-$(CONFIG_W1_MASTER_DS2490)		+= ds2490.o
 obj-$(CONFIG_W1_MASTER_DS2482)		+= ds2482.o
 

drivers/w1/masters/ds_w1_bridge.c

-/*
- *	ds_w1_bridge.c
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-
-#include "../w1.h"
-#include "../w1_int.h"
-#include "dscore.h"
-
-static struct ds_device *ds_dev;
-static struct w1_bus_master *ds_bus_master;
-
-static u8 ds9490r_touch_bit(void *data, u8 bit)
-{
-	u8 ret;
-	struct ds_device *dev = data;
-
-	if (ds_touch_bit(dev, bit, &ret))
-		return 0;
-
-	return ret;
-}
-
-static void ds9490r_write_bit(void *data, u8 bit)
-{
-	struct ds_device *dev = data;
-
-	ds_write_bit(dev, bit);
-}
-
-static void ds9490r_write_byte(void *data, u8 byte)
-{
-	struct ds_device *dev = data;
-
-	ds_write_byte(dev, byte);
-}
-
-static u8 ds9490r_read_bit(void *data)
-{
-	struct ds_device *dev = data;
-	int err;
-	u8 bit = 0;
-
-	err = ds_touch_bit(dev, 1, &bit);
-	if (err)
-		return 0;
-	//err = ds_read_bit(dev, &bit);
-	//if (err)
-	//	return 0;
-
-	return bit & 1;
-}
-
-static u8 ds9490r_read_byte(void *data)
-{
-	struct ds_device *dev = data;
-	int err;
-	u8 byte = 0;
-
-	err = ds_read_byte(dev, &byte);
-	if (err)
-		return 0;
-
-	return byte;
-}
-
-static void ds9490r_write_block(void *data, const u8 *buf, int len)
-{
-	struct ds_device *dev = data;
-
-	ds_write_block(dev, (u8 *)buf, len);
-}
-
-static u8 ds9490r_read_block(void *data, u8 *buf, int len)
-{
-	struct ds_device *dev = data;
-	int err;
-
-	err = ds_read_block(dev, buf, len);
-	if (err < 0)
-		return 0;
-
-	return len;
-}
-
-static u8 ds9490r_reset(void *data)
-{
-	struct ds_device *dev = data;
-	struct ds_status st;
-	int err;
-
-	memset(&st, 0, sizeof(st));
-
-	err = ds_reset(dev, &st);
-	if (err)
-		return 1;
-
-	return 0;
-}
-
-static int __devinit ds_w1_init(void)
-{
-	int err;
-
-	ds_bus_master = kmalloc(sizeof(*ds_bus_master), GFP_KERNEL);
-	if (!ds_bus_master) {
-		printk(KERN_ERR "Failed to allocate DS9490R USB<->W1 bus_master structure.\n");
-		return -ENOMEM;
-	}
-
-	ds_dev = ds_get_device();
-	if (!ds_dev) {
-		printk(KERN_ERR "DS9490R is not registered.\n");
-		err =  -ENODEV;
-		goto err_out_free_bus_master;
-	}
-
-	memset(ds_bus_master, 0, sizeof(*ds_bus_master));
-
-	ds_bus_master->data		= ds_dev;
-	ds_bus_master->touch_bit	= &ds9490r_touch_bit;
-	ds_bus_master->read_bit		= &ds9490r_read_bit;
-	ds_bus_master->write_bit	= &ds9490r_write_bit;
-	ds_bus_master->read_byte	= &ds9490r_read_byte;
-	ds_bus_master->write_byte	= &ds9490r_write_byte;
-	ds_bus_master->read_block	= &ds9490r_read_block;
-	ds_bus_master->write_block	= &ds9490r_write_block;
-	ds_bus_master->reset_bus	= &ds9490r_reset;
-
-	err = w1_add_master_device(ds_bus_master);
-	if (err)
-		goto err_out_put_device;
-
-	return 0;
-
-err_out_put_device:
-	ds_put_device(ds_dev);
-err_out_free_bus_master:
-	kfree(ds_bus_master);
-
-	return err;
-}
-
-static void __devexit ds_w1_fini(void)
-{
-	w1_remove_master_device(ds_bus_master);
-	ds_put_device(ds_dev);
-	kfree(ds_bus_master);
-}
-
-module_init(ds_w1_init);
-module_exit(ds_w1_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");

drivers/w1/masters/dscore.h

-/*
- *	dscore.h
- *
- * Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
- *
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef __DSCORE_H
-#define __DSCORE_H
-
-#include <linux/usb.h>
-#include <asm/atomic.h>
-
-/* COMMAND TYPE CODES */
-#define CONTROL_CMD			0x00
-#define COMM_CMD			0x01
-#define MODE_CMD			0x02
-
-/* CONTROL COMMAND CODES */
-#define CTL_RESET_DEVICE		0x0000
-#define CTL_START_EXE			0x0001
-#define CTL_RESUME_EXE			0x0002
-#define CTL_HALT_EXE_IDLE		0x0003
-#define CTL_HALT_EXE_DONE		0x0004
-#define CTL_FLUSH_COMM_CMDS		0x0007
-#define CTL_FLUSH_RCV_BUFFER		0x0008
-#define CTL_FLUSH_XMT_BUFFER		0x0009
-#define CTL_GET_COMM_CMDS		0x000A
-
-/* MODE COMMAND CODES */
-#define MOD_PULSE_EN			0x0000
-#define MOD_SPEED_CHANGE_EN		0x0001
-#define MOD_1WIRE_SPEED			0x0002
-#define MOD_STRONG_PU_DURATION		0x0003
-#define MOD_PULLDOWN_SLEWRATE		0x0004
-#define MOD_PROG_PULSE_DURATION		0x0005
-#define MOD_WRITE1_LOWTIME		0x0006
-#define MOD_DSOW0_TREC			0x0007
-
-/* COMMUNICATION COMMAND CODES */
-#define COMM_ERROR_ESCAPE		0x0601
-#define COMM_SET_DURATION		0x0012
-#define COMM_BIT_IO			0x0020
-#define COMM_PULSE			0x0030
-#define COMM_1_WIRE_RESET		0x0042
-#define COMM_BYTE_IO			0x0052
-#define COMM_MATCH_ACCESS		0x0064
-#define COMM_BLOCK_IO			0x0074
-#define COMM_READ_STRAIGHT		0x0080
-#define COMM_DO_RELEASE			0x6092
-#define COMM_SET_PATH			0x00A2
-#define COMM_WRITE_SRAM_PAGE		0x00B2
-#define COMM_WRITE_EPROM		0x00C4
-#define COMM_READ_CRC_PROT_PAGE		0x00D4
-#define COMM_READ_REDIRECT_PAGE_CRC	0x21E4
-#define COMM_SEARCH_ACCESS		0x00F4
-
-/* Communication command bits */
-#define COMM_TYPE			0x0008
-#define COMM_SE				0x0008
-#define COMM_D				0x0008
-#define COMM_Z				0x0008
-#define COMM_CH				0x0008
-#define COMM_SM				0x0008
-#define COMM_R				0x0008
-#define COMM_IM				0x0001
-
-#define COMM_PS				0x4000
-#define COMM_PST			0x4000
-#define COMM_CIB			0x4000
-#define COMM_RTS			0x4000
-#define COMM_DT				0x2000
-#define COMM_SPU			0x1000
-#define COMM_F				0x0800
-#define COMM_NTP			0x0400
-#define COMM_ICP			0x0200
-#define COMM_RST			0x0100
-
-#define PULSE_PROG			0x01
-#define PULSE_SPUE			0x02
-
-#define BRANCH_MAIN			0xCC
-#define BRANCH_AUX			0x33
-
-/*
- * Duration of the strong pull-up pulse in milliseconds.
- */
-#define PULLUP_PULSE_DURATION		750
-
-/* Status flags */
-#define ST_SPUA				0x01  /* Strong Pull-up is active */
-#define ST_PRGA				0x02  /* 12V programming pulse is being generated */
-#define ST_12VP				0x04  /* external 12V programming voltage is present */
-#define ST_PMOD				0x08  /* DS2490 powered from USB and external sources */
-#define ST_HALT				0x10  /* DS2490 is currently halted */
-#define ST_IDLE				0x20  /* DS2490 is currently idle */
-#define ST_EPOF				0x80
-
-#define SPEED_NORMAL			0x00
-#define SPEED_FLEXIBLE			0x01
-#define SPEED_OVERDRIVE			0x02
-
-#define NUM_EP				4
-#define EP_CONTROL			0
-#define EP_STATUS			1
-#define EP_DATA_OUT			2
-#define EP_DATA_IN			3
-
-struct ds_device
-{
-	struct usb_device	*udev;
-	struct usb_interface	*intf;
-
-	int			ep[NUM_EP];
-
-	atomic_t		refcnt;
-};
-
-struct ds_status
-{
-	u8			enable;
-	u8			speed;
-	u8			pullup_dur;
-	u8			ppuls_dur;
-	u8			pulldown_slew;
-	u8			write1_time;
-	u8			write0_time;
-	u8			reserved0;
-	u8			status;
-	u8			command0;
-	u8			command1;
-	u8			command_buffer_status;
-	u8			data_out_buffer_status;
-	u8			data_in_buffer_status;
-	u8			reserved1;
-	u8			reserved2;
-
-};
-
-int ds_touch_bit(struct ds_device *, u8, u8 *);
-int ds_read_byte(struct ds_device *, u8 *);
-int ds_read_bit(struct ds_device *, u8 *);
-int ds_write_byte(struct ds_device *, u8);
-int ds_write_bit(struct ds_device *, u8);
-int ds_reset(struct ds_device *, struct ds_status *);
-struct ds_device * ds_get_device(void);
-void ds_put_device(struct ds_device *);
-int ds_write_block(struct ds_device *, u8 *, int);
-int ds_read_block(struct ds_device *, u8 *, int);
-
-#endif /* __DSCORE_H */
-