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V4L/DVB (13194): gspca - gl860: improvement of the main driver part

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- fix for warning compilation about sd_ctrls
- trace improvement while probing the sensor

Signed-off-by: Olivier Lorin <o.lorin@laposte.net>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Olivier Lorin 2009-10-15 04:12:46 -03:00 committed by Mauro Carvalho Chehab
parent 013db7575b
commit 216f05aa2a
1 changed files with 21 additions and 22 deletions
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43
drivers/media/video/gspca/gl860/gl860.c
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@ -23,8 +23,8 @@
#include "gspca.h"
#include "gl860.h"
MODULE_AUTHOR("Olivier Lorin <lorin@laposte.net>");
MODULE_DESCRIPTION("GSPCA/Genesys Logic GL860 USB Camera Driver");
MODULE_AUTHOR("Olivier Lorin <o.lorin@laposte.net>");
MODULE_DESCRIPTION("Genesys Logic USB PC Camera Driver");
MODULE_LICENSE("GPL");
/*======================== static function declarations ====================*/
@ -53,7 +53,7 @@ MODULE_PARM_DESC(AC50Hz, " Does AC power frequency is 50Hz? (0/1)");
static char sensor[7];
module_param_string(sensor, sensor, sizeof(sensor), 0644);
MODULE_PARM_DESC(sensor,
" Driver sensor ('MI1320'/'MI2020'/'OV9655'/'OV2640'/'')");
" Driver sensor ('MI1320'/'MI2020'/'OV9655'/'OV2640')");
/*============================ webcam controls =============================*/
@ -156,7 +156,7 @@ static int gl860_build_control_table(struct gspca_dev *gspca_dev)
SET_MY_CTRL(V4L2_CID_VFLIP,
V4L2_CTRL_TYPE_BOOLEAN, "Flip", flip)
SET_MY_CTRL(V4L2_CID_POWER_LINE_FREQUENCY,
V4L2_CTRL_TYPE_BOOLEAN, "50Hz", AC50Hz)
V4L2_CTRL_TYPE_BOOLEAN, "AC power 50Hz", AC50Hz)
return nCtrls;
}
@ -702,6 +702,7 @@ static int gl860_guess_sensor(struct gspca_dev *gspca_dev,
ctrl_out(gspca_dev, 0x40, 1, 0x006a, 0x000d, 0, NULL);
msleep(56);
PDEBUG(D_PROBE, "probing for sensor MI2020 or OVXXXX");
nOV = 0;
for (ntry = 0; ntry < 4; ntry++) {
ctrl_out(gspca_dev, 0x40, 1, 0x0040, 0x0000, 0, NULL);
@ -711,14 +712,14 @@ static int gl860_guess_sensor(struct gspca_dev *gspca_dev,
ctrl_out(gspca_dev, 0x40, 1, 0x7a00, 0x8030, 0, NULL);
msleep(10);
ctrl_in(gspca_dev, 0xc0, 2, 0x7a00, 0x8030, 1, &probe);
PDEBUG(D_PROBE, "1st probe=%02x", probe);
PDEBUG(D_PROBE, "probe=0x%02x", probe);
if (probe == 0xff)
nOV++;
}
if (nOV) {
PDEBUG(D_PROBE, "0xff -> sensor OVXXXX");
PDEBUG(D_PROBE, "Probing for sensor OV2640 or OV9655");
PDEBUG(D_PROBE, "0xff -> OVXXXX");
PDEBUG(D_PROBE, "probing for sensor OV2640 or OV9655");
nb26 = nb96 = 0;
for (ntry = 0; ntry < 4; ntry++) {
@ -728,40 +729,38 @@ static int gl860_guess_sensor(struct gspca_dev *gspca_dev,
ctrl_out(gspca_dev, 0x40, 1, 0x6000, 0x800a,
0, NULL);
msleep(10);
/* Wait for 26(OV2640) or 96(OV9655) */
ctrl_in(gspca_dev, 0xc0, 2, 0x6000, 0x800a,
1, &probe);
PDEBUG(D_PROBE, "2nd probe=%02x", probe);
if (probe == 0x00)
nb26++;
if (probe == 0x26 || probe == 0x40) {
PDEBUG(D_PROBE,
"probe=0x%02x -> OV2640",
probe);
sd->sensor = ID_OV2640;
nb26 += 4;
break;
}
if (probe == 0x96 || probe == 0x55) {
PDEBUG(D_PROBE,
"probe=0x%02x -> OV9655",
probe);
sd->sensor = ID_OV9655;
nb96 += 4;
break;
}
PDEBUG(D_PROBE, "probe=0x%02x", probe);
if (probe == 0x00)
nb26++;
if (probe == 0xff)
nb96++;
msleep(3);
}
if (nb26 < 4 && nb96 < 4) {
PDEBUG(D_PROBE, "No relevant answer ");
PDEBUG(D_PROBE, "* 1.3Mpixels -> use OV9655");
PDEBUG(D_PROBE, "* 2.0Mpixels -> use OV2640");
PDEBUG(D_PROBE,
"To force a sensor, add that line to "
"/etc/modprobe.d/options.conf:");
PDEBUG(D_PROBE, "options gspca_gl860 "
"sensor=\"OV2640\" or \"OV9655\"");
if (nb26 < 4 && nb96 < 4)
return -1;
}
} else { /* probe = 0 */
PDEBUG(D_PROBE, "No 0xff -> sensor MI2020");
} else {
PDEBUG(D_PROBE, "Not any 0xff -> MI2020");
sd->sensor = ID_MI2020;
}
}