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- speed up scanner probing 

- improved CCD color calibration
DEVEL_2_0_BRANCH-1
Stéphane Voltz 2002-03-10 06:29:14 +00:00
rodzic c1cd998a52
commit b2b0d37acb
1 zmienionych plików z 146 dodań i 34 usunięć
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180
backend/umax_pp_low.c
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@ -116,7 +116,7 @@ static void SetEPPMode (int mode);
static int GetEPPMode (void);
static void SetModel (int model);
static int GetModel (void);
static int RingScanner (void);
static int RingScanner (int count, unsigned long delay);
static int TestVersion (int no);
static int SendCommand (int cmd);
@ -2537,10 +2537,14 @@ SendWord (int *cmd)
/******************************************************************************/
/* RingScanner: returns 1 if scanner present, else 0 */
/******************************************************************************/
#define UMAX_PP_PAUSE 100
/*
* in fact this function is really close to CPP macro in
* /usr/src/linux/drivers/block/paride/epat.c .....
* we have almost CPP(8)
*/
static int
RingScanner (void)
RingScanner (int count, unsigned long delay)
{
int status;
int data;
@ -2563,29 +2567,74 @@ RingScanner (void)
/* send ring string */
Outb (DATA, 0x22);
usleep (UMAX_PP_PAUSE);
usleep (delay);
Outb (DATA, 0x22);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if (count == 5)
{
Outb (DATA, 0x22);
usleep (delay);
Outb (DATA, 0x22);
usleep (delay);
Outb (DATA, 0x22);
usleep (delay);
}
Outb (DATA, 0xAA);
usleep (UMAX_PP_PAUSE);
usleep (delay);
Outb (DATA, 0xAA);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if (count == 5)
{
Outb (DATA, 0xAA);
usleep (delay);
Outb (DATA, 0xAA);
usleep (delay);
Outb (DATA, 0xAA);
usleep (delay);
}
Outb (DATA, 0x55);
usleep (UMAX_PP_PAUSE);
usleep (delay);
Outb (DATA, 0x55);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if (count == 5)
{
Outb (DATA, 0x55);
usleep (delay);
Outb (DATA, 0x55);
usleep (delay);
Outb (DATA, 0x55);
usleep (delay);
}
Outb (DATA, 0x00);
usleep (UMAX_PP_PAUSE);
usleep (delay);
Outb (DATA, 0x00);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if (count == 5)
{
Outb (DATA, 0x00);
usleep (delay);
Outb (DATA, 0x00);
usleep (delay);
Outb (DATA, 0x00);
usleep (delay);
}
Outb (DATA, 0xFF);
usleep (UMAX_PP_PAUSE);
usleep (delay);
Outb (DATA, 0xFF);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if (count == 5)
{
Outb (DATA, 0xFF);
usleep (delay);
Outb (DATA, 0xFF);
usleep (delay);
Outb (DATA, 0xFF);
usleep (delay);
}
/* OK ? */
status = Inb (STATUS);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if ((status & 0xB8) != 0xB8)
{
DBG (1, "status %d doesn't match! %s:%d\n", status, __FILE__, __LINE__);
@ -2596,11 +2645,19 @@ RingScanner (void)
if (ret)
{
Outb (DATA, 0x87);
usleep (UMAX_PP_PAUSE);
usleep (delay);
Outb (DATA, 0x87);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if (count == 5)
{
Outb (DATA, 0x87);
usleep (delay);
Outb (DATA, 0x87);
usleep (delay);
Outb (DATA, 0x87);
usleep (delay);
}
status = Inb (STATUS);
usleep (UMAX_PP_PAUSE);
/* status = 126 when scanner not connected .... */
if ((status & 0xB8) != 0x18)
{
@ -2614,9 +2671,18 @@ RingScanner (void)
if (ret)
{
Outb (DATA, 0x78);
usleep (UMAX_PP_PAUSE);
usleep (delay);
Outb (DATA, 0x78);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if (count == 5)
{
Outb (DATA, 0x78);
usleep (delay);
Outb (DATA, 0x78);
usleep (delay);
Outb (DATA, 0x78);
usleep (delay);
}
status = Inb (STATUS);
if ((status & 0x30) != 0x30)
{
@ -2630,13 +2696,31 @@ RingScanner (void)
if (ret)
{
Outb (DATA, 0x08);
usleep (UMAX_PP_PAUSE);
usleep (delay);
Outb (DATA, 0x08);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if (count == 5)
{
Outb (DATA, 0x08);
usleep (delay);
Outb (DATA, 0x08);
usleep (delay);
Outb (DATA, 0x08);
usleep (delay);
}
Outb (DATA, 0xFF);
usleep (UMAX_PP_PAUSE);
usleep (delay);
Outb (DATA, 0xFF);
usleep (UMAX_PP_PAUSE);
usleep (delay);
if (count == 5)
{
Outb (DATA, 0xFF);
usleep (delay);
Outb (DATA, 0xFF);
usleep (delay);
Outb (DATA, 0xFF);
usleep (delay);
}
}
/* restore state */
@ -4176,12 +4260,12 @@ Probe610P (int recover)
sanei_umax_pp_setastra (610);
if (!Test610P (0x87))
{
DBG (1, "Ring610P(0x87) failed (%s:%d)\n", __FILE__, __LINE__);
DBG (1, "Test610P(0x87) failed (%s:%d)\n", __FILE__, __LINE__);
return (0);
}
else
{
DBG (16, "Ring610P(0x87) passed...\n");
DBG (16, "Test610P(0x87) passed...\n");
}
if (!In256 ())
{
@ -4263,14 +4347,27 @@ sanei_umax_pp_ProbeScanner (int recover)
tmp = Inb (DATA);
/* any scanner ? */
tmp = RingScanner ();
if (tmp)
/* fast detect */
tmp = RingScanner (2, 0);
if (!tmp)
{
i = 0;
while ((i < 50) && (tmp))
DBG (1, "No scanner detected by 'RingScanner(2,0)'...\n");
tmp = RingScanner (5, 0);
if (!tmp)
{
tmp = RingScanner ();
i++;
DBG (1, "No scanner detected by 'RingScanner(5,0)'...\n");
tmp = RingScanner (5, 10000);
if (!tmp)
{
DBG (1, "No scanner detected by 'RingScanner(5,10000)'...\n");
tmp = RingScanner (5, 10000);
if (!tmp)
{
DBG (1,
"No scanner detected by 'RingScanner(5,10000)'...\n");
tmp = Test610P (0x87);
}
}
}
}
if (!tmp)
@ -6228,13 +6325,28 @@ static int
EvalGain (int sum, int count)
{
int gn;
float pct;
float avg;
/*if(getenv("CORRECTION"))
return(atoi(getenv("CORRECTION"))); */
/* 19000 is a little too bright */
gn = (int) ((double) (18500 * count) / sum - 100 + 0.5);
/* gn = (int) ((double) (18500 * count) / sum - 100 + 0.5); */
/* after ~ 60 * 10 scans , it looks like 1 step is a 0.57% increase */
/* so we take the value and compute the percent increase to reach 250 */
/* no 255, because we want some room inaccuracy */
/* pct=100-(value*100)/250 */
/* then correction is pct/0.57 */
avg = (float) (sum) / (float) (count);
pct = 100.0 - (avg * 100.0) / 250.0;
gn = (int) (pct / 0.57);
if (gn < 0)
gn = 0;
else if (gn > 255)
gn = 255;
else if (gn > 127)
gn = 127;
return (gn);
}