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Remove USB 2.0 mode, as it causes horrible backtracking for resolutions > 300 dpi.

merge-requests/1/head
Jan Hauffa 2012-07-14 16:44:28 +02:00 zatwierdzone przez m. allan noah
rodzic 98248f6088
commit a64477bf1a
2 zmienionych plików z 35 dodań i 61 usunięć
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95
backend/mustek_usb2_asic.c
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@ -2010,7 +2010,6 @@ SANE_Status
Asic_Open (ASIC * chip)
{
SANE_Status status;
struct sanei_usb_dev_descriptor desc;
DBG_ASIC_ENTER ();
if (chip->firmwarestate > FS_OPENED)
@ -2029,15 +2028,6 @@ Asic_Open (ASIC * chip)
return status;
}
status = sanei_usb_get_descriptor (chip->fd, &desc);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_ERR, "sanei_usb_get_descriptor failed: %s\n",
sane_strstatus (status));
return status;
}
chip->isUsb20 = (desc.bcd_usb >= 0x0200) ? SANE_TRUE : SANE_FALSE;
status = OpenScanChip (chip);
if (status != SANE_STATUS_GOOD)
{
@ -2189,57 +2179,42 @@ GetDummyCycleNumber (ASIC * chip, unsigned short wYResolution,
SANE_Byte bDummyCycleNum = 0;
if (lsLightSource == SS_REFLECTIVE)
{
if (!chip->isUsb20)
switch (wYResolution)
{
switch (wYResolution)
{
case 2400:
case 1200:
if (chip->dwBytesCountPerRow > 22000)
bDummyCycleNum = 4;
else if (chip->dwBytesCountPerRow > 15000)
bDummyCycleNum = 3;
else if (chip->dwBytesCountPerRow > 10000)
bDummyCycleNum = 2;
else if (chip->dwBytesCountPerRow > 5000)
bDummyCycleNum = 1;
break;
case 600:
case 300:
case 150:
case 100:
if (chip->dwBytesCountPerRow > 21000)
bDummyCycleNum = 7;
else if (chip->dwBytesCountPerRow > 18000)
bDummyCycleNum = 6;
else if (chip->dwBytesCountPerRow > 15000)
bDummyCycleNum = 5;
else if (chip->dwBytesCountPerRow > 12000)
bDummyCycleNum = 4;
else if (chip->dwBytesCountPerRow > 9000)
bDummyCycleNum = 3;
else if (chip->dwBytesCountPerRow > 6000)
bDummyCycleNum = 2;
else if (chip->dwBytesCountPerRow > 3000)
bDummyCycleNum = 1;
break;
case 75:
case 50:
bDummyCycleNum = 1;
break;
}
}
else
{
switch (wYResolution)
{
case 2400:
case 1200:
case 75:
case 50:
bDummyCycleNum = 1;
break;
}
case 2400:
case 1200:
if (chip->dwBytesCountPerRow > 22000)
bDummyCycleNum = 4;
else if (chip->dwBytesCountPerRow > 15000)
bDummyCycleNum = 3;
else if (chip->dwBytesCountPerRow > 10000)
bDummyCycleNum = 2;
else if (chip->dwBytesCountPerRow > 5000)
bDummyCycleNum = 1;
break;
case 600:
case 300:
case 150:
case 100:
if (chip->dwBytesCountPerRow > 21000)
bDummyCycleNum = 7;
else if (chip->dwBytesCountPerRow > 18000)
bDummyCycleNum = 6;
else if (chip->dwBytesCountPerRow > 15000)
bDummyCycleNum = 5;
else if (chip->dwBytesCountPerRow > 12000)
bDummyCycleNum = 4;
else if (chip->dwBytesCountPerRow > 9000)
bDummyCycleNum = 3;
else if (chip->dwBytesCountPerRow > 6000)
bDummyCycleNum = 2;
else if (chip->dwBytesCountPerRow > 3000)
bDummyCycleNum = 1;
break;
case 75:
case 50:
bDummyCycleNum = 1;
break;
}
}
return bDummyCycleNum;

1
backend/mustek_usb2_asic.h
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@ -230,7 +230,6 @@ typedef struct ASIC
FIRMWARESTATE firmwarestate;
SANE_Bool isFirstOpenChip; /* == SANE_FALSE after first Asic_Open */
SANE_Bool isUsb20;
unsigned int dwBytesCountPerRow;