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path: root/drivers/usb/misc/cy7c63.c
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Diffstat (limited to 'drivers/usb/misc/cy7c63.c')
-rw-r--r--drivers/usb/misc/cy7c63.c244
1 files changed, 0 insertions, 244 deletions
diff --git a/drivers/usb/misc/cy7c63.c b/drivers/usb/misc/cy7c63.c
deleted file mode 100644
index 8a1c10b89b7..00000000000
--- a/drivers/usb/misc/cy7c63.c
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
-* cy7c63.c
-*
-* Copyright (c) 2006 Oliver Bock (bock@fh-wolfenbuettel.de)
-*
-* This driver is based on the Cypress Thermometer USB Driver by
-* Marcus Maul and the 2.0 version of Greg Kroah-Hartman's
-* USB Skeleton driver.
-*
-* Is is a generic driver for the Cypress CY7C63000 family.
-* For the time being it enables you to toggle the single I/O ports
-* of the device.
-*
-* Supported vendors: AK Modul-Bus Computer GmbH
-* Supported devices: CY7C63001A-PC (to be continued...)
-* Supported functions: Read/Write Ports (to be continued...)
-*
-* Chipsets families: CY7C63000, CY7C63001, CY7C63100, CY7C63101
-*
-*
-* 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, version 2.
-*/
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/usb.h>
-
-#define DRIVER_AUTHOR "Oliver Bock (bock@fh-wolfenbuettel.de)"
-#define DRIVER_DESC "Cypress CY7C63xxx USB driver"
-
-#define CY7C63_VENDOR_ID 0xa2c
-#define CY7C63_PRODUCT_ID 0x8
-
-#define CY7C63_READ_PORT 0x4
-#define CY7C63_WRITE_PORT 0x5
-#define CY7C63_READ_RAM 0x2
-#define CY7C63_WRITE_RAM 0x3
-#define CY7C63_READ_ROM 0x1
-
-#define CY7C63_READ_PORT_ID0 0
-#define CY7C63_WRITE_PORT_ID0 0
-#define CY7C63_READ_PORT_ID1 0x2
-#define CY7C63_WRITE_PORT_ID1 1
-
-#define CY7C63_MAX_REQSIZE 8
-
-
-/* table of devices that work with this driver */
-static struct usb_device_id cy7c63_table [] = {
- { USB_DEVICE(CY7C63_VENDOR_ID, CY7C63_PRODUCT_ID) },
- { }
-};
-MODULE_DEVICE_TABLE(usb, cy7c63_table);
-
-/* structure to hold all of our device specific stuff */
-struct cy7c63 {
- struct usb_device * udev;
- char port0;
- char port1;
-};
-
-/* used to send usb control messages to device */
-int vendor_command(struct cy7c63 *dev, unsigned char request,
- unsigned char address, unsigned char data) {
-
- int retval = 0;
- unsigned int pipe;
- unsigned char *iobuf;
-
- /* allocate some memory for the i/o buffer*/
- iobuf = kzalloc(CY7C63_MAX_REQSIZE, GFP_KERNEL);
- if (!iobuf) {
- dev_err(&dev->udev->dev, "Out of memory!\n");
- retval = -ENOMEM;
- goto error;
- }
-
- dev_dbg(&dev->udev->dev, "Sending usb_control_msg (data: %d)\n", data);
-
- /* prepare usb control message and send it upstream */
- pipe = usb_rcvctrlpipe(dev->udev, 0);
- retval = usb_control_msg(dev->udev, pipe, request,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
- address, data, iobuf, CY7C63_MAX_REQSIZE,
- USB_CTRL_GET_TIMEOUT);
-
- /* store returned data (more READs to be added!) */
- switch (request) {
- case CY7C63_READ_PORT:
- if (address == CY7C63_READ_PORT_ID0) {
- dev->port0 = iobuf[1];
- dev_dbg(&dev->udev->dev,
- "READ_PORT0 returned: %d\n",dev->port0);
- }
- else if (address == CY7C63_READ_PORT_ID1) {
- dev->port1 = iobuf[1];
- dev_dbg(&dev->udev->dev,
- "READ_PORT1 returned: %d\n",dev->port1);
- }
- break;
- }
-
- kfree(iobuf);
-error:
- return retval;
-}
-
-#define get_set_port(num,read_id,write_id) \
-static ssize_t set_port##num(struct device *dev, struct device_attribute *attr, \
- const char *buf, size_t count) { \
- \
- int value; \
- int result = 0; \
- \
- struct usb_interface *intf = to_usb_interface(dev); \
- struct cy7c63 *cyp = usb_get_intfdata(intf); \
- \
- dev_dbg(&cyp->udev->dev, "WRITE_PORT%d called\n", num); \
- \
- /* validate input data */ \
- if (sscanf(buf, "%d", &value) < 1) { \
- result = -EINVAL; \
- goto error; \
- } \
- if (value>255 || value<0) { \
- result = -EINVAL; \
- goto error; \
- } \
- \
- result = vendor_command(cyp, CY7C63_WRITE_PORT, write_id, \
- (unsigned char)value); \
- \
- dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n",result); \
-error: \
- return result < 0 ? result : count; \
-} \
- \
-static ssize_t get_port##num(struct device *dev, \
- struct device_attribute *attr, char *buf) { \
- \
- int result = 0; \
- \
- struct usb_interface *intf = to_usb_interface(dev); \
- struct cy7c63 *cyp = usb_get_intfdata(intf); \
- \
- dev_dbg(&cyp->udev->dev, "READ_PORT%d called\n", num); \
- \
- result = vendor_command(cyp, CY7C63_READ_PORT, read_id, 0); \
- \
- dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n", result); \
- \
- return sprintf(buf, "%d", cyp->port##num); \
-} \
-static DEVICE_ATTR(port##num, S_IWUGO | S_IRUGO, get_port##num, set_port##num);
-
-get_set_port(0, CY7C63_READ_PORT_ID0, CY7C63_WRITE_PORT_ID0);
-get_set_port(1, CY7C63_READ_PORT_ID1, CY7C63_WRITE_PORT_ID1);
-
-static int cy7c63_probe(struct usb_interface *interface,
- const struct usb_device_id *id) {
-
- struct cy7c63 *dev = NULL;
- int retval = -ENOMEM;
-
- /* allocate memory for our device state and initialize it */
- dev = kzalloc(sizeof(*dev), GFP_KERNEL);
- if (dev == NULL) {
- dev_err(&dev->udev->dev, "Out of memory!\n");
- goto error;
- }
-
- dev->udev = usb_get_dev(interface_to_usbdev(interface));
-
- /* save our data pointer in this interface device */
- usb_set_intfdata(interface, dev);
-
- /* create device attribute files */
- device_create_file(&interface->dev, &dev_attr_port0);
- device_create_file(&interface->dev, &dev_attr_port1);
-
- /* let the user know what node this device is now attached to */
- dev_info(&interface->dev,
- "Cypress CY7C63xxx device now attached\n");
-
- retval = 0;
-error:
- return retval;
-}
-
-static void cy7c63_disconnect(struct usb_interface *interface) {
-
- struct cy7c63 *dev;
-
- dev = usb_get_intfdata(interface);
- usb_set_intfdata(interface, NULL);
-
- /* remove device attribute files */
- device_remove_file(&interface->dev, &dev_attr_port0);
- device_remove_file(&interface->dev, &dev_attr_port1);
-
- usb_put_dev(dev->udev);
-
- dev_info(&interface->dev,
- "Cypress CY7C63xxx device now disconnected\n");
-
- kfree(dev);
-}
-
-static struct usb_driver cy7c63_driver = {
- .name = "cy7c63",
- .probe = cy7c63_probe,
- .disconnect = cy7c63_disconnect,
- .id_table = cy7c63_table,
-};
-
-static int __init cy7c63_init(void) {
-
- int result;
-
- /* register this driver with the USB subsystem */
- result = usb_register(&cy7c63_driver);
- if (result) {
- err("Function usb_register failed! Error number: %d\n", result);
- }
-
- return result;
-}
-
-static void __exit cy7c63_exit(void) {
-
- /* deregister this driver with the USB subsystem */
- usb_deregister(&cy7c63_driver);
-}
-
-module_init(cy7c63_init);
-module_exit(cy7c63_exit);
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 16:04:51 +0000