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#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <asm/uaccess.h>
#include <linux/init.h>
#include <linux/malloc.h>
#include <linux/delay.h>
#include <linux/ioctl.h>
// #define DEBUG
#include "usb.h"
/* WARNING: These DATA_DUMP's can produce a lot of data. Caveat Emptor. */
// #define RD_DATA_DUMP /* Enable to dump data - limited to 24 bytes */
// #define WR_DATA_DUMP /* DEBUG does not have to be defined. */
#define IS_EP_BULK(ep) ((ep).bmAttributes == USB_ENDPOINT_XFER_BULK ? 1 : 0)
#define IS_EP_BULK_IN(ep) (IS_EP_BULK(ep) && ((ep).bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
#define IS_EP_BULK_OUT(ep) (IS_EP_BULK(ep) && ((ep).bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT)
#define IS_EP_INTR(ep) ((ep).bmAttributes == USB_ENDPOINT_XFER_INT ? 1 : 0)
#define USB_SCN_MINOR(X) MINOR((X)->i_rdev) - SCN_BASE_MNR
#ifdef DEBUG
#define SCN_DEBUG(X) X
#else
#define SCN_DEBUG(X)
#endif
#define IBUF_SIZE 32768
#define OBUF_SIZE 4096
/* FIXME: These are NOT registered ioctls()'s */
#define PV8630_IOCTL_INREQUEST 69
#define PV8630_IOCTL_OUTREQUEST 70
#define SCN_MAX_MNR 16 /* We're allocated 16 minors */
#define SCN_BASE_MNR 48 /* USB Scanners start at minor 48 */
struct scn_usb_data {
struct usb_device *scn_dev;
struct urb scn_irq;
unsigned int ifnum; /* Interface number of the USB device */
kdev_t scn_minor; /* Scanner minor - used in disconnect() */
unsigned char button; /* Front panel buffer */
char isopen; /* Not zero if the device is open */
char present; /* Not zero if device is present */
char *obuf, *ibuf; /* transfer buffers */
char bulk_in_ep, bulk_out_ep, intr_ep; /* Endpoint assignments */
};
static struct scn_usb_data *p_scn_table[SCN_MAX_MNR] = { NULL, /* ... */};
MODULE_AUTHOR("David E. Nelson, dnelson@jump.net, http://www.jump.net/~dnelson");
MODULE_DESCRIPTION("USB Scanner Driver");
static __s32 vendor=-1, product=-1;
MODULE_PARM(vendor, "i");
MODULE_PARM_DESC(vendor, "User specified USB idVendor");
MODULE_PARM(product, "i");
MODULE_PARM_DESC(product, "User specified USB idProduct");
/* Forward declarations */
static struct usb_driver scanner_driver;
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