static SANE_Status
usb_send_command (struct scanner *s, struct cmd *c, struct response *r,
void *buf)
{
SANE_Status st;
struct bulk_header *h = (struct bulk_header *) buf;
u8 resp[sizeof (*h) + STATUS_SIZE];
size_t sz = sizeof (*h) + MAX_CMD_SIZE;
memset (h, 0, sz);
h->length = cpu2be32 (sz);
h->type = cpu2be16 (COMMAND_BLOCK);
h->code = cpu2be16 (COMMAND_CODE);
memcpy (h + 1, c->cmd, c->cmd_size);
st = sanei_usb_write_bulk (s->file, (const SANE_Byte *) h, &sz);
if (st)
return st;
if (sz != sizeof (*h) + MAX_CMD_SIZE)
return SANE_STATUS_IO_ERROR;
if (c->dir == CMD_IN)
{
sz = sizeof (*h) + c->data_size;
st = sanei_usb_read_bulk (s->file, (SANE_Byte *) h, &sz);
c->data = h + 1;
c->data_size = sz - sizeof (*h);
if (st || sz < sizeof (*h))
{
st = sanei_usb_release_interface (s->file, 0);
if (st)
return st;
st = sanei_usb_claim_interface (s->file, 0);
if (st)
return st;
r->status = CHECK_CONDITION;
return SANE_STATUS_GOOD;
}
}
else if (c->dir == CMD_OUT)
{
sz = sizeof (*h) + c->data_size;
memset (h, 0, sizeof (*h));
h->length = cpu2be32 (sizeof (*h) + c->data_size);
h->type = cpu2be16 (DATA_BLOCK);
h->code = cpu2be16 (DATA_CODE);
memcpy (h + 1, c->data, c->data_size);
st = sanei_usb_write_bulk (s->file, (const SANE_Byte *) h, &sz);
if (st)
return st;
}
sz = sizeof (resp);
st = sanei_usb_read_bulk (s->file, resp, &sz);
if (st || sz != sizeof (resp))
return SANE_STATUS_IO_ERROR;
r->status = be2cpu32 (*((u32 *) (resp + sizeof (*h))));
return st;
}
/**
* read available data count from scanner
* from tests it appears that advertised data
* may not be really available, and that a pause must be made
* before reading data so that it is really there.
* Such as reading data twice.
*/
SANE_Status
sanei_rts88xx_data_count (SANE_Int devnum, SANE_Word * count)
{
SANE_Status status;
size_t size;
static SANE_Byte header[4] = { 0x90, 0x00, 0x00, 3 };
SANE_Byte result[3];
/* set count in case of failure */
*count = 0;
size = 4;
status = sanei_usb_write_bulk (devnum, header, &size);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error, "sanei_rts88xx_data_count : failed to write header\n");
return status;
}
size = 3;
status = sanei_usb_read_bulk (devnum, result, &size);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error,
"sanei_rts88xx_data_count : failed to read data count\n");
return status;
}
*count = result[0] + (result[1] << 8) + (result[2] << 16);
DBG (DBG_io2, "sanei_rts88xx_data_count: %d bytes available (0x%06x)\n",
*count, *count);
return status;
}
int
usb_dev_request (struct device *dev,
SANE_Byte *cmd, size_t cmdlen,
SANE_Byte *resp, size_t *resplen)
{
SANE_Status status;
size_t len = cmdlen;
if (cmd && cmdlen) {
status = sanei_usb_write_bulk (dev->dn, cmd, &cmdlen);
if (status != SANE_STATUS_GOOD) {
DBG (1, "%s: sanei_usb_write_bulk: %s\n", __FUNCTION__,
sane_strstatus (status));
return SANE_STATUS_IO_ERROR;
}
if (cmdlen != len) {
DBG (1, "%s: sanei_usb_write_bulk: wanted %lu bytes, wrote %lu bytes\n",
__FUNCTION__, (size_t)len, (size_t)cmdlen);
return SANE_STATUS_IO_ERROR;
}
}
if (resp && resplen) {
status = sanei_usb_read_bulk (dev->dn, resp, resplen);
if (status != SANE_STATUS_GOOD) {
DBG (1, "%s: sanei_usb_read_bulk: %s\n", __FUNCTION__,
sane_strstatus (status));
return SANE_STATUS_IO_ERROR;
}
}
return SANE_STATUS_GOOD;
}
/*
* read one register at given index
*/
SANE_Status
sanei_rts88xx_read_reg (SANE_Int devnum, SANE_Int index, SANE_Byte * reg)
{
SANE_Status status = SANE_STATUS_GOOD;
unsigned char cmd[] = { 0x80, 0x00, 0x00, 0x01 };
size_t size;
cmd[1] = index;
size = 4;
status = sanei_usb_write_bulk (devnum, cmd, &size);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error, "sanei_rts88xx_read_reg: bulk write failed\n");
return status;
}
size = 1;
status = sanei_usb_read_bulk (devnum, reg, &size);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error, "sanei_rts88xx_read_reg: bulk read failed\n");
return status;
}
DBG (DBG_io2, "sanei_rts88xx_read_reg: reg[0x%02x]=0x%02x\n", index, *reg);
return status;
}
static void
send_conf (struct device_s *dev)
{
int y1, y2, x1, x2;
size_t size = 100;
DBG(100,"Sending configuration packet on device %s\n",dev->devname);
y1 = (int) round2 ((dev->optionw[Y1_OFFSET] / ((double) MAX_Y_S)) * MAX_Y_H);
y2 = (int) round2 ((dev->optionw[Y2_OFFSET] / ((double) MAX_Y_S)) * MAX_Y_H);
x1 = (int) round2 ((dev->optionw[X1_OFFSET] / ((double) MAX_X_S)) * MAX_X_H);
x2 = (int) round2 ((dev->optionw[X2_OFFSET] / ((double) MAX_X_S)) * MAX_X_H);
DBG(100,"\t x1: %d, x2: %d, y1: %d, y2: %d\n",x1, x2, y1, y2);
DBG(100,"\t brightness: %d, contrast: %d\n", dev->optionw[BRIGH_OFFSET], dev->optionw[CONTR_OFFSET]);
DBG(100,"\t resolution: %d\n",dev->optionw[RES_OFFSET]);
dev->conf_data[0] = htonl (0x15);
dev->conf_data[1] = htonl (dev->optionw[BRIGH_OFFSET]);
dev->conf_data[2] = htonl (dev->optionw[CONTR_OFFSET]);
dev->conf_data[3] = htonl (dev->optionw[RES_OFFSET]);
dev->conf_data[4] = htonl (0x1);
dev->conf_data[5] = htonl (0x1);
dev->conf_data[6] = htonl (0x1);
dev->conf_data[7] = htonl (0x1);
dev->conf_data[8] = 0;
dev->conf_data[9] = 0;
dev->conf_data[10] = htonl (0x8);
dev->conf_data[11] = 0;
dev->conf_data[12] = 0;
dev->conf_data[13] = 0;
dev->conf_data[14] = 0;
dev->conf_data[16] = htonl (y1);
dev->conf_data[17] = htonl (x1);
dev->conf_data[18] = htonl (y2);
dev->conf_data[19] = htonl (x2);
dev->conf_data[20] = 0;
dev->conf_data[21] = 0;
dev->conf_data[22] = htonl (0x491);
dev->conf_data[23] = htonl (0x352);
if (dev->optionw[COLOR_OFFSET] == RGB)
{
dev->conf_data[15] = htonl (0x2);
dev->conf_data[24] = htonl (0x1);
DBG(100,"\t Scanning in RGB format\n");
}
else
{
dev->conf_data[15] = htonl (0x6);
dev->conf_data[24] = htonl (0x0);
DBG(100,"\t Scanning in Grayscale format\n");
}
sanei_usb_write_bulk (dev->dn, (unsigned char *) dev->conf_data, &size);
}
static void
send_pkt (int command, int data_size, struct device_s *dev)
{
size_t size = 32;
DBG(100,"Sending packet %d, next data size %d, device %s\n", command, data_size, dev->devname);
memset (dev->packet_data, 0, size);
dev->packet_data[0] = htonl (MAGIC_NUMBER);
dev->packet_data[1] = htonl (command);
dev->packet_data[5] = htonl (data_size);
sanei_usb_write_bulk (dev->dn, (unsigned char *) dev->packet_data, &size);
}
/* read several registers starting at the given index */
SANE_Status
sanei_rts88xx_read_regs (SANE_Int devnum, SANE_Int start,
SANE_Byte * dest, SANE_Int length)
{
SANE_Status status;
static SANE_Byte command_block[] = { 0x80, 0, 0x00, 0xFF };
size_t size, i;
char message[256 * 5];
if (start + length > 255)
{
DBG (DBG_error,
"sanei_rts88xx_read_regs: start and length must be within [0..255]\n");
return SANE_STATUS_INVAL;
}
/* write header */
size = 4;
command_block[1] = start;
command_block[3] = length;
status = sanei_usb_write_bulk (devnum, command_block, &size);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error, "sanei_rts88xx_read_regs: failed to write header\n");
return status;
}
/* read data */
size = length;
status = sanei_usb_read_bulk (devnum, dest, &size);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error, "sanei_rts88xx_read_regs: failed to read data\n");
return status;
}
if (size != (size_t) length)
{
DBG (DBG_warn, "sanei_rts88xx_read_regs: read got only %lu bytes\n",
(u_long) size);
}
if (DBG_LEVEL >= DBG_io)
{
for (i = 0; i < size; i++)
sprintf (message + 5 * i, "0x%02x ", dest[i]);
DBG (DBG_io, "sanei_rts88xx_read_regs: read_regs(0x%02x,%d)=%s\n",
start, length, message);
}
return status;
}
/*
* read length bytes of memory into area pointed by value
*/
SANE_Status
sanei_rts88xx_read_mem (SANE_Int devnum, SANE_Int length, SANE_Byte * value)
{
SANE_Status status;
size_t size, read, want;
SANE_Byte header[4];
/* build and write length header */
header[0] = 0x81;
header[1] = 0x00;
header[2] = HIBYTE (length);
header[3] = LOBYTE (length);
size = 4;
status = sanei_usb_write_bulk (devnum, header, &size);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error,
"sanei_rts88xx_read_mem: failed to write length header\n");
return status;
}
DBG (DBG_io, "sanei_rts88xx_read_mem: %02x %02x %02x %02x -> ...\n",
header[0], header[1], header[2], header[3]);
read = 0;
while (length > 0)
{
if (length > 2048)
want = 2048;
else
want = length;
size = want;
status = sanei_usb_read_bulk (devnum, value + read, &size);
if (size != want)
{
DBG (DBG_error,
"sanei_rts88xx_read_mem: only read %lu bytes out of %lu\n",
(u_long) size, (u_long) want);
status = SANE_STATUS_IO_ERROR;
}
length -= size;
read += size;
}
return status;
}
static ssize_t
channel_usb_send (channel *self, const void *buffer,
size_t size, SANE_Status *status)
{
ssize_t n = size;
if (self->interpreter)
{
n = self->interpreter->send (self, buffer, size, status);
}
else
{
SANE_Status s;
s = sanei_usb_write_bulk (self->fd, buffer, (size_t *)&n);
if (status) *status = s;
}
return n;
}
/*
* write the given number of bytes pointed by value into memory
* length is payload length
* extra is number of bytes to add to the usb write length
*/
SANE_Status
sanei_rts88xx_write_mem (SANE_Int devnum, SANE_Int length, SANE_Int extra,
SANE_Byte * value)
{
SANE_Status status;
SANE_Byte *buffer;
size_t i, size;
char message[(0xFFC0 + 10) * 3] = "";
buffer = (SANE_Byte *) malloc (length + 10);
memset (buffer, 0, length + 10);
if (buffer == NULL)
return SANE_STATUS_NO_MEM;
buffer[0] = 0x89;
buffer[1] = 0x00;
buffer[2] = HIBYTE (length);
buffer[3] = LOBYTE (length);
for (i = 0; i < (size_t) length; i++)
{
buffer[i + 4] = value[i];
if (DBG_LEVEL > DBG_io2)
{
sprintf (message + 3 * i, "%02x ", buffer[i + 4]);
}
}
DBG (DBG_io, "sanei_rts88xx_write_mem: %02x %02x %02x %02x -> %s\n",
buffer[0], buffer[1], buffer[2], buffer[3], message);
size = length + 4 + extra;
status = sanei_usb_write_bulk (devnum, buffer, &size);
free (buffer);
if ((status == SANE_STATUS_GOOD) && (size != (size_t) length + 4 + extra))
{
DBG (DBG_error,
"sanei_rts88xx_write_mem: only wrote %lu bytes out of %d\n",
(u_long) size, length + 4);
status = SANE_STATUS_IO_ERROR;
}
return status;
}
/*
* write to the nvram controler
*/
SANE_Status
sanei_rts88xx_nvram_ctrl (SANE_Int devnum, SANE_Int length, SANE_Byte * value)
{
SANE_Status status = SANE_STATUS_GOOD;
SANE_Int size = 0;
SANE_Int i;
SANE_Byte buffer[60];
char message[60 * 5];
if (DBG_LEVEL > DBG_io)
{
for (i = 0; i < length; i++)
{
sprintf (message + 5 * i, "0x%02x ", value[i]);
}
DBG (DBG_io, "sanei_rts88xx_nvram_ctrl : nvram_ctrl(0x00,%d)=%s\n",
length, message);
}
buffer[0] = 0x8a;
buffer[1] = 0x00;
buffer[2] = 0x00;
buffer[3] = length;
for (i = 0; i < size; i++)
buffer[i + 4] = value[i];
/* the USB block is size + 4 bytes of header long */
size = length + 4;
#ifdef HAZARDOUS_EXPERIMENT
status = sanei_usb_write_bulk (devnum, buffer, &size);
#else
devnum = devnum;
status = SANE_STATUS_GOOD;
#endif
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error, "sanei_rts88xx_nvram_ctrl : write failed ...\n");
}
return status;
}
/*
* read scanned data from scanner up to the size given. The actual length read is returned.
*/
SANE_Status
sanei_rts88xx_read_data (SANE_Int devnum, SANE_Word * length,
unsigned char *dest)
{
SANE_Status status = SANE_STATUS_GOOD;
SANE_Byte header[4];
size_t size, len, remain, read;
/* do not read too much data */
if (*length > RTS88XX_MAX_XFER_SIZE)
len = RTS88XX_MAX_XFER_SIZE;
else
len = *length;
/* write command header first */
header[0] = 0x91;
header[1] = 0x00;
header[2] = HIBYTE (len);
header[3] = LOBYTE (len);
size = 4;
status = sanei_usb_write_bulk (devnum, header, &size);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error, "sanei_rts88xx_read_data: failed to write header\n");
}
read = 0;
/* first read blocks aligned on 64 bytes boundary */
while (len - read > 64)
{
size = (len - read) & 0xFFC0;
status = sanei_usb_read_bulk (devnum, dest + read, &size);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error, "sanei_rts88xx_read_data: failed to read data\n");
return status;
}
DBG (DBG_io2, "sanei_rts88xx_read_data: read %lu bytes\n",
(u_long) size);
read += size;
}
/* then read remainder */
remain = len - read;
if (remain > 0)
{
status = sanei_usb_read_bulk (devnum, dest + read, &remain);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_error, "sanei_rts88xx_read_data: failed to read data\n");
return status;
}
DBG (DBG_io2, "sanei_rts88xx_read_data: read %lu bytes\n",
(u_long) remain);
read += remain;
}
/* update actual read length */
DBG (DBG_io, "sanei_rts88xx_read_data: read %lu bytes, %d required\n",
(u_long) read, *length);
*length = read;
return status;
}
/*
* write length consecutive registers, starting at index
* register 0xb3 is never wrote in bulk register write, so we split
* write if it belongs to the register set sent
*/
SANE_Status
sanei_rts88xx_write_regs (SANE_Int devnum, SANE_Int start,
SANE_Byte * source, SANE_Int length)
{
size_t size = 0;
size_t i;
SANE_Byte buffer[260];
char message[256 * 5];
if (DBG_LEVEL > DBG_io)
{
for (i = 0; i < (size_t) length; i++)
{
sprintf (message + 5 * i, "0x%02x ", source[i]);
}
DBG (DBG_io, "sanei_rts88xx_write_regs : write_regs(0x%02x,%d)=%s\n",
start, length, message);
}
/* when writing several registers at a time, we avoid writing the 0xb3 register
* which is used to control the status of the scanner */
if ((start + length > 0xb3) && (length > 1))
{
size = 0xb3 - start;
buffer[0] = 0x88;
buffer[1] = start;
buffer[2] = 0x00;
buffer[3] = size;
for (i = 0; i < size; i++)
buffer[i + 4] = source[i];
/* the USB block is size + 4 bytes of header long */
size += 4;
if (sanei_usb_write_bulk (devnum, buffer, &size) != SANE_STATUS_GOOD)
{
DBG (DBG_error,
"sanei_rts88xx_write_regs : write registers part 1 failed ...\n");
return SANE_STATUS_IO_ERROR;
}
/* skip 0xb3 register */
size -= 3;
start = 0xb4;
source = source + size;
}
size = length - size;
buffer[0] = 0x88;
buffer[1] = start;
buffer[2] = 0x00;
buffer[3] = size;
for (i = 0; i < size; i++)
buffer[i + 4] = source[i];
/* the USB block is size + 4 bytes of header long */
size += 4;
if (sanei_usb_write_bulk (devnum, buffer, &size) != SANE_STATUS_GOOD)
{
DBG (DBG_error,
"sanei_rts88xx_write_regs : write registers part 2 failed ...\n");
return SANE_STATUS_IO_ERROR;
}
return SANE_STATUS_GOOD;
}
/*******************************************************************************
* USB-in-USB: bulk write
*
* Parameters
* dn - sanei_usb device descriptor
* cmd - command for bulk write operation
* bytes - pointer to data buffer
* size - size of data
*
* Returns
* SANE_STATUS_GOOD - all data transferred successfully
* all other SANE_Status value - otherwise
*/
static SANE_Status
hp5590_bulk_write (SANE_Int dn,
enum proto_flags proto_flags,
int cmd, unsigned char *bytes,
unsigned int size)
{
struct usb_in_usb_bulk_setup ctrl;
SANE_Status ret;
struct bulk_size bulk_size;
unsigned int len;
unsigned char *ptr;
size_t next_portion;
DBG (3, "%s: USB-in-USB: command: %04x, size %u\n", __func__, cmd,
size);
hp5590_low_assert (bytes != NULL);
/* Prepare bulk write request */
memset (&bulk_size, 0, sizeof (bulk_size));
/* Counted in page size */
bulk_size.size = size / BULK_WRITE_PAGE_SIZE;
/* Send bulk write request */
DBG (3, "%s: USB-in-USB: total %u pages (each of %u bytes)\n",
__func__, bulk_size.size, BULK_WRITE_PAGE_SIZE);
ret = hp5590_control_msg (dn,
proto_flags,
USB_DIR_OUT,
0x04, cmd, 0,
(unsigned char *) &bulk_size, sizeof (bulk_size),
CORE_DATA | CORE_BULK_OUT);
if (ret != SANE_STATUS_GOOD)
return ret;
len = size;
ptr = bytes;
/* Send all data in pages */
while (len)
{
next_portion = BULK_WRITE_PAGE_SIZE;
if (len < next_portion)
next_portion = len;
DBG (3, "%s: USB-in-USB: next portion %lu bytes\n",
__func__, (u_long) next_portion);
/* Prepare bulk write request */
memset (&ctrl, 0, sizeof (ctrl));
ctrl.bRequestType = 0x01;
ctrl.bEndpoint = 0x82;
ctrl.wLength = htons (next_portion);
/* Send bulk write request */
ret = sanei_usb_control_msg (dn, USB_DIR_OUT | USB_TYPE_VENDOR,
0x04, 0x82, 0,
sizeof (ctrl), (unsigned char *) &ctrl);
if (ret != SANE_STATUS_GOOD)
return ret;
/* USB-in-USB: checking if command was accepted */
ret = hp5590_get_ack (dn, proto_flags);
if (ret != SANE_STATUS_GOOD)
return ret;
/* Write bulk data */
DBG (3, "%s: USB-in-USB: bulk writing %lu bytes\n",
__func__, (u_long) next_portion);
ret = sanei_usb_write_bulk (dn, ptr, &next_portion);
if (ret != SANE_STATUS_GOOD)
{
/* Treast EOF as successful result */
if (ret == SANE_STATUS_EOF)
break;
DBG (DBG_err, "%s: USB-in-USB: error during bulk write: %s\n",
__func__, sane_strstatus (ret));
return ret;
}
/* Move to the next page */
len -= next_portion;
ptr += next_portion;
}
/* Verify bulk command */
return hp5590_verify_last_cmd (dn, proto_flags, cmd);
}
/* write all registers, taking care of the special 0xaa value which
* must be escaped with a zero
*/
static SANE_Status
rts8891_write_all (SANE_Int devnum, SANE_Byte * regs, SANE_Int count)
{
SANE_Status status = SANE_STATUS_GOOD;
SANE_Byte local_regs[RTS8891_MAX_REGISTERS];
size_t size = 0;
SANE_Byte buffer[260];
unsigned int i, j;
char message[256 * 5];
if (DBG_LEVEL > DBG_io)
{
for (i = 0; i < (unsigned int) count; i++)
{
if (i != 0xb3)
sprintf (message + 5 * i, "0x%02x ", regs[i]);
else
sprintf (message + 5 * i, "---- ");
}
DBG (DBG_io, "rts8891_write_all : write_all(0x00,%d)=%s\n", count,
message);
}
/* copy register set and escaping 0xaa values */
/* b0, b1 abd b3 values may be scribled, but that isn't important */
/* since they are read-only registers */
j = 0;
for (i = 0; i < 0xb3; i++)
{
local_regs[j] = regs[i];
if (local_regs[j] == 0xaa && i < 0xb3)
{
j++;
local_regs[j] = 0x00;
}
j++;
}
buffer[0] = 0x88;
buffer[1] = 0;
buffer[2] = 0x00;
buffer[3] = 0xb3;
for (i = 0; i < j; i++)
buffer[i + 4] = local_regs[i];
/* the USB block is size + 4 bytes of header long */
size = j + 4;
if (sanei_usb_write_bulk (devnum, buffer, &size) != SANE_STATUS_GOOD)
{
DBG (DBG_error,
"rts88xx_write_all : write registers part 1 failed ...\n");
return SANE_STATUS_IO_ERROR;
}
size = count - 0xb4; /* we need to substract one reg since b3 won't be written */
buffer[0] = 0x88;
buffer[1] = 0xb4;
buffer[2] = 0x00;
buffer[3] = size;
for (i = 0; i < size; i++)
buffer[i + 4] = regs[0xb4 + i];
/* the USB block is size + 4 bytes of header long */
size += 4;
if (sanei_usb_write_bulk (devnum, buffer, &size) != SANE_STATUS_GOOD)
{
DBG (DBG_error,
"rts88xx_write_all : write registers part 2 failed ...\n");
return SANE_STATUS_IO_ERROR;
}
return status;
}
/*
* take a bunch of pointers, send commands to scanner
*/
static SANE_Status
do_cmd(struct scanner *s, int shortTime,
unsigned char * cmdBuff, size_t cmdLen,
unsigned char * outBuff, size_t outLen,
unsigned char * inBuff, size_t * inLen
)
{
/* sanei_usb overwrites the transfer size, so make some local copies */
size_t loc_cmdLen = cmdLen;
size_t loc_outLen = outLen;
size_t loc_inLen = *inLen;
int cmdTime = USB_COMMAND_TIME;
int outTime = USB_DATA_TIME;
int inTime = USB_DATA_TIME;
int ret = 0;
DBG (10, "do_cmd: start\n");
if(shortTime){
cmdTime /= 20;
outTime /= 20;
inTime /= 20;
}
/* change timeout */
sanei_usb_set_timeout(cmdTime);
/* write the command out */
DBG(25, "cmd: writing %ld bytes, timeout %d\n", (long)cmdLen, cmdTime);
hexdump(30, "cmd: >>", cmdBuff, cmdLen);
ret = sanei_usb_write_bulk(s->fd, cmdBuff, &cmdLen);
DBG(25, "cmd: wrote %ld bytes, retVal %d\n", (long)cmdLen, ret);
if(ret == SANE_STATUS_EOF){
DBG(5,"cmd: got EOF, returning IO_ERROR\n");
return SANE_STATUS_IO_ERROR;
}
if(ret != SANE_STATUS_GOOD){
DBG(5,"cmd: return error '%s'\n",sane_strstatus(ret));
return ret;
}
if(loc_cmdLen != cmdLen){
DBG(5,"cmd: wrong size %ld/%ld\n", (long)loc_cmdLen, (long)cmdLen);
return SANE_STATUS_IO_ERROR;
}
/* this command has a write component, and a place to get it */
if(outBuff && outLen && outTime){
/* change timeout */
sanei_usb_set_timeout(outTime);
DBG(25, "out: writing %ld bytes, timeout %d\n", (long)outLen, outTime);
hexdump(30, "out: >>", outBuff, outLen);
ret = sanei_usb_write_bulk(s->fd, outBuff, &outLen);
DBG(25, "out: wrote %ld bytes, retVal %d\n", (long)outLen, ret);
if(ret == SANE_STATUS_EOF){
DBG(5,"out: got EOF, returning IO_ERROR\n");
return SANE_STATUS_IO_ERROR;
}
if(ret != SANE_STATUS_GOOD){
DBG(5,"out: return error '%s'\n",sane_strstatus(ret));
return ret;
}
if(loc_outLen != outLen){
DBG(5,"out: wrong size %ld/%ld\n", (long)loc_outLen, (long)outLen);
return SANE_STATUS_IO_ERROR;
}
}
/* this command has a read component, and a place to put it */
if(inBuff && inLen && inTime){
memset(inBuff,0,*inLen);
/* change timeout */
sanei_usb_set_timeout(inTime);
DBG(25, "in: reading %ld bytes, timeout %d\n", (long)*inLen, inTime);
ret = sanei_usb_read_bulk(s->fd, inBuff, inLen);
DBG(25, "in: retVal %d\n", ret);
if(ret == SANE_STATUS_EOF){
DBG(5,"in: got EOF, continuing\n");
}
else if(ret != SANE_STATUS_GOOD){
DBG(5,"in: return error '%s'\n",sane_strstatus(ret));
return ret;
}
DBG(25, "in: read %ld bytes\n", (long)*inLen);
if(*inLen){
hexdump(30, "in: <<", inBuff, *inLen);
}
if(loc_inLen != *inLen){
ret = SANE_STATUS_EOF;
DBG(5,"in: short read %ld/%ld\n", (long)loc_inLen, (long)*inLen);
}
}
DBG (10, "do_cmd: finish\n");
return ret;
}
/* Send command via USB, and get response data */
SANE_Status
kv_usb_escape (PKV_DEV dev,
PKV_CMD_HEADER header, unsigned char *status_byte)
{
int got_response = 0;
size_t len;
unsigned char cmd_buff[24];
memset (cmd_buff, 0, 24);
cmd_buff[3] = 0x18; /* container length */
cmd_buff[5] = 1; /* container type: command block */
cmd_buff[6] = 0x90; /* code */
if (!kv_usb_already_open(dev))
{
DBG (DBG_error, "kv_usb_escape: error, device not open.\n");
return SANE_STATUS_IO_ERROR;
}
memcpy (cmd_buff + 12, header->cdb, header->cdb_size);
/* change timeout */
sanei_usb_set_timeout(KV_CMD_TIMEOUT);
/* Send command */
len = 24;
if (sanei_usb_write_bulk (dev->usb_fd, (SANE_Byte *) cmd_buff, &len))
{
DBG (DBG_error, "usb_bulk_write: Error writing command.\n");
hexdump (DBG_error, "cmd block", cmd_buff, 24);
return SANE_STATUS_IO_ERROR;
}
/* Send / Read data */
if (header->direction == KV_CMD_IN)
{
size_t size = header->data_size + 12;
size_t size_read = size;
unsigned char *data = ((unsigned char *) header->data) - 12;
SANE_Status ret;
ret = sanei_usb_read_bulk (dev->usb_fd, (SANE_Byte *) data, &size_read);
/*empty read is ok?*/
if (ret == SANE_STATUS_EOF){
sanei_usb_clear_halt (dev->usb_fd);
ret = SANE_STATUS_GOOD;
}
if (ret) {
sanei_usb_clear_halt (dev->usb_fd);
DBG (DBG_error, "usb_bulk_read: Error reading data.\n");
return SANE_STATUS_IO_ERROR;
}
if (size_read != size)
{
DBG (DBG_shortread, "usb_bulk_read: Warning - short read\n");
DBG (DBG_shortread, "usb_bulk_read: bytes to read = %lu\n", (unsigned long)size);
DBG (DBG_shortread,
"usb_bulk_read: bytes actual read = %lu\n", (unsigned long)size_read);
/*hexdump (DBG_shortread, "data", data, size_read); */
}
}
if (header->direction == KV_CMD_OUT)
{
size_t size = header->data_size + 12;
size_t size_written = size;
unsigned char *data = ((unsigned char *) header->data) - 12;
SANE_Status ret;
memset (data, 0, 12);
Ito32 (size, data);
data[5] = 0x02; /* container type: data block */
data[6] = 0xb0; /* code */
ret = sanei_usb_write_bulk (dev->usb_fd, (SANE_Byte *) data, &size_written);
/*empty write is ok?*/
if (ret == SANE_STATUS_EOF){
sanei_usb_clear_halt (dev->usb_fd);
ret = SANE_STATUS_GOOD;
}
if (ret) {
sanei_usb_clear_halt (dev->usb_fd);
DBG (DBG_error, "usb_bulk_write: Error writing data.\n");
return SANE_STATUS_IO_ERROR;
}
if (size_written != size)
{
DBG (DBG_shortread, "usb_bulk_write: Warning - short written\n");
DBG (DBG_shortread, "usb_bulk_write: bytes to write = %lu\n", (unsigned long)size);
DBG (DBG_shortread,
"usb_bulk_write: bytes actual written = %lu\n", (unsigned long)size_written);
hexdump (DBG_shortread, "data", data, size_written);
}
}
/* Get response */
if (!got_response)
{
SANE_Status ret;
size_t len = 16;
ret = sanei_usb_read_bulk (dev->usb_fd, (SANE_Byte *) cmd_buff, &len);
if (ret || len != 16)
{
DBG (DBG_error, "usb_bulk_read: Error reading response."
" read %lu bytes\n", (unsigned long)len);
sanei_usb_clear_halt (dev->usb_fd);
return SANE_STATUS_IO_ERROR;
}
}
if (cmd_buff[5] != 3)
{
DBG (DBG_error, "usb_bulk_read: Invalid response block.\n");
hexdump (DBG_error, "response", cmd_buff, 16);
return SANE_STATUS_IO_ERROR;
}
*status_byte = cmd_buff[15] & 0x3E;
return SANE_STATUS_GOOD;
}
