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Added support for USB control messages (patch from Marcio Luis 

Teixeira <marciot@holly.colostate.edu>).
Henning Meier-Geinitz <henning@meier-geinitz.de>
DEVEL_2_0_BRANCH-1
Henning Geinitz 2002-01-03 19:18:27 +00:00
rodzic a5a4194e8d
commit d9201789aa
1 zmienionych plików z 63 dodań i 9 usunięć
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72
sanei/sanei_usb.c
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@ -1,5 +1,6 @@
/* sane - Scanner Access Now Easy.
Copyright (C) 2001 Henning Meier-Geinitz
Copyright (C) 2001 Frank Zago (sanei_usb_control_msg)
This file is part of the SANE package.
This program is free software; you can redistribute it and/or
@ -58,6 +59,33 @@
#include "../include/sane/sanei_usb.h"
#include "../include/sane/sanei_config.h"
#if defined (__linux__)
/* From /usr/src/linux/driver/usb/scanner.h */
#define SCANNER_IOCTL_VENDOR _IOR('U', 0x20, int)
#define SCANNER_IOCTL_PRODUCT _IOR('U', 0x21, int)
#define SCANNER_IOCTL_CTRLMSG _IOWR('U', 0x22, devrequest)
/* Older (unofficial) IOCTL numbers for Linux < v2.4.13 */
#define SCANNER_IOCTL_VENDOR_OLD _IOR('u', 0xa0, int)
#define SCANNER_IOCTL_PRODUCT_OLD _IOR('u', 0xa1, int)
/* From /usr/src/linux/include/linux/usb.h */
typedef struct {
unsigned char requesttype;
unsigned char request;
unsigned short value;
unsigned short index;
unsigned short length;
} devrequest __attribute__ ((packed));
/* From /usr/src/linux/driver/usb/scanner.h */
struct ctrlmsg_ioctl {
devrequest req;
void *data;
} cmsg;
#endif /* __linux__ */
void
sanei_usb_init (void)
@ -114,15 +142,10 @@ sanei_usb_get_vendor_product (SANE_Int fd, SANE_Word * vendor,
SANE_Word vendorID, productID;
#if defined (__linux__)
#define IOCTL_SCANNER_VENDOR _IOR('U', 0x20, int)
#define IOCTL_SCANNER_PRODUCT _IOR('U', 0x21, int)
/* Older (unofficial) IOCTL numbers for Linux < v2.4.13 */
#define IOCTL_SCANNER_VENDOR_OLD _IOR('u', 0xa0, int)
#define IOCTL_SCANNER_PRODUCT_OLD _IOR('u', 0xa1, int)
/* read the vendor and product IDs via the IOCTLs */
if (ioctl (fd, IOCTL_SCANNER_VENDOR , &vendorID) == -1)
if (ioctl (fd, SCANNER_IOCTL_VENDOR , &vendorID) == -1)
{
if (ioctl (fd, IOCTL_SCANNER_VENDOR_OLD , &vendorID) == -1)
if (ioctl (fd, SCANNER_IOCTL_VENDOR_OLD , &vendorID) == -1)
{
DBG (3, "sanei_usb_get_vendor_product: ioctl (vendor) of fd %d "
"failed: %s\n", fd, strerror (errno));
@ -130,9 +153,9 @@ sanei_usb_get_vendor_product (SANE_Int fd, SANE_Word * vendor,
vendorID = 0;
}
}
if (ioctl (fd, IOCTL_SCANNER_PRODUCT , &productID) == -1)
if (ioctl (fd, SCANNER_IOCTL_PRODUCT , &productID) == -1)
{
if (ioctl (fd, IOCTL_SCANNER_PRODUCT_OLD , &productID) == -1)
if (ioctl (fd, SCANNER_IOCTL_PRODUCT_OLD , &productID) == -1)
{
DBG (3, "sanei_usb_get_vendor_product: ioctl (product) of fd %d "
"failed: %s\n", fd, strerror (errno));
@ -310,3 +333,34 @@ sanei_usb_write_bulk (SANE_Int fd, SANE_Byte * buffer, size_t *size)
*size = write_size;
return SANE_STATUS_GOOD;
}
SANE_Status
sanei_usb_control_msg(SANE_Int fd, SANE_Int rtype, SANE_Int req,
SANE_Int value, SANE_Int index, SANE_Int len,
SANE_Byte *data )
{
#if defined(__linux__)
struct ctrlmsg_ioctl c;
c.req.requesttype = rtype;
c.req.request = req;
c.req.value = value;
c.req.index = index;
c.req.length = len;
c.data = data;
DBG(5, "sanei_usb_control_msg: rtype = 0x%02x, req = %d, value = %d, "
"index = %d, len = %d\n", rtype, req, value, index, len);
if (ioctl(fd, SCANNER_IOCTL_CTRLMSG, &c) < 0)
{
DBG(5, "sanei_usb_control_msg: SCANNER_IOCTL_CTRLMSG error - %s\n",
strerror(errno));
return SANE_STATUS_IO_ERROR;
}
return SANE_STATUS_GOOD;
#else
DBG (5, "sanei_usb_control_msg: not supported on this OS\n");
return SANE_STATUS_UNSUPPORTED;
#endif /* __linux__ */
}