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* backed out an change that broke the umax_pp backend on many 

parallel port settings
merge-requests/1/head
Stéphane Voltz 2003-05-21 05:39:56 +00:00
rodzic 44053c7b91
commit 1123c7bf11
2 zmienionych plików z 4 dodań i 56 usunięć
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4
ChangeLog
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@ -1,3 +1,7 @@
2003-05-21 Stéphane Voltz <svoltz@wanadoo.fr>
* backend/umax_pp_low.c: backed out clearing epp timeout. It prevented most
common settings to use the umax_pp backend.
2003-05-18 Gerhard Jaeger <gerhard@gjaeger.de>
* doc/sane-plustek.man: Update.
* backend/plustek-devs.c backend/plustek-usbshading.c

56
backend/umax_pp_low.c
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@ -1241,34 +1241,6 @@ sanei_umax_pp_setauto (int autoset)
gAutoSettings = autoset;
}
static void dump_port(void)
{
unsigned char r;
r = Inb (DATA);
DBG(0,"DATA=0x%02X\n",r);
r = Inb (STATUS);
DBG(0,"STATUS=0x%02X\n",r);
r = Inb (CONTROL);
DBG(0,"CONTROL=0x%02X\n",r);
}
static int
clear_epp_timeout (void)
{
unsigned char r;
r = Inb (STATUS);
if (!(r & 0x01))
return 1;
/* To clear timeout some chips require double read */
r = Inb (STATUS);
r = Inb (STATUS);
Outb (STATUS, r | 0x01); /* Some reset by writing 1 */
Outb (STATUS, r & 0xfe); /* Others by writing 0 */
r = Inb (STATUS);
return !(r & 0x01);
}
static int
NibbleRead (void)
@ -5182,21 +5154,7 @@ sanei_umax_pp_ProbeScanner (int recover)
Init002 (0);
DBG (16, "Init002(0) passed... (%s:%d)\n", __FILE__, __LINE__);
DBG (16, "dumping port state ... (%s:%d)\n", __FILE__, __LINE__);
dump_port ();
DBG (16, "clearing timeout ... (%s:%d)\n", __FILE__, __LINE__);
clear_epp_timeout ();
DBG (16, "dumping port state ... (%s:%d)\n", __FILE__, __LINE__);
dump_port ();
REGISTERWRITE (0x0A, 0);
/*clear_epp_timeout(); */
DBG (16, "dumping port state ... (%s:%d)\n", __FILE__, __LINE__);
dump_port ();
DBG (16, "clearing timeout ... (%s:%d)\n", __FILE__, __LINE__);
clear_epp_timeout ();
DBG (16, "dumping port state ... (%s:%d)\n", __FILE__, __LINE__);
dump_port ();
/* catch any failure to read back data in EPP mode */
reg = RegisterRead (0x0A);
@ -5233,24 +5191,10 @@ sanei_umax_pp_ProbeScanner (int recover)
DBG (16, "RegisterRead(0x0A)=0x00 passed... (%s:%d)\n", __FILE__,
__LINE__);
}
DBG (16, "dumping port state ... (%s:%d)\n", __FILE__, __LINE__);
dump_port ();
DBG (16, "clearing timeout ... (%s:%d)\n", __FILE__, __LINE__);
clear_epp_timeout();
DBG (16, "dumping port state ... (%s:%d)\n", __FILE__, __LINE__);
dump_port ();
RegisterWrite (0x0A, 0xFF);
DBG (16, "dumping port state ... (%s:%d)\n", __FILE__, __LINE__);
dump_port ();
DBG (16, "clearing timeout ... (%s:%d)\n", __FILE__, __LINE__);
clear_epp_timeout();
DBG (16, "dumping port state ... (%s:%d)\n", __FILE__, __LINE__);
dump_port ();
DBG (16, "RegisterWrite(0x%X,0x%X) passed... (%s:%d)\n", 0x0A, 0xFF,
__FILE__, __LINE__);
REGISTERREAD (0x0A, 0xFF);
DBG (16, "dumping port state ... (%s:%d)\n", __FILE__, __LINE__);
dump_port ();
for (i = 1; i < 256; i++)
{
REGISTERWRITE (0x0A, i);