mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 05:25:11 +07:00
0c0d06cac6
Rename all USB drivers with their own directory under drivers/media/video into drivers/media/usb and update the building system. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/* Linux driver for Philips webcam
|
|
Various miscellaneous functions and tables.
|
|
(C) 1999-2003 Nemosoft Unv.
|
|
(C) 2004-2006 Luc Saillard (luc@saillard.org)
|
|
|
|
NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx
|
|
driver and thus may have bugs that are not present in the original version.
|
|
Please send bug reports and support requests to <luc@saillard.org>.
|
|
The decompression routines have been implemented by reverse-engineering the
|
|
Nemosoft binary pwcx module. Caveat emptor.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
|
|
#include "pwc.h"
|
|
|
|
const int pwc_image_sizes[PSZ_MAX][2] =
|
|
{
|
|
{ 128, 96 }, /* sqcif */
|
|
{ 160, 120 }, /* qsif */
|
|
{ 176, 144 }, /* qcif */
|
|
{ 320, 240 }, /* sif */
|
|
{ 352, 288 }, /* cif */
|
|
{ 640, 480 }, /* vga */
|
|
};
|
|
|
|
/* x,y -> PSZ_ */
|
|
int pwc_get_size(struct pwc_device *pdev, int width, int height)
|
|
{
|
|
int i;
|
|
|
|
/* Find the largest size supported by the camera that fits into the
|
|
requested size. */
|
|
for (i = PSZ_MAX - 1; i >= 0; i--) {
|
|
if (!(pdev->image_mask & (1 << i)))
|
|
continue;
|
|
|
|
if (pwc_image_sizes[i][0] <= width &&
|
|
pwc_image_sizes[i][1] <= height)
|
|
return i;
|
|
}
|
|
|
|
/* No mode found, return the smallest mode we have */
|
|
for (i = 0; i < PSZ_MAX; i++) {
|
|
if (pdev->image_mask & (1 << i))
|
|
return i;
|
|
}
|
|
|
|
/* Never reached there always is atleast one supported mode */
|
|
return 0;
|
|
}
|
|
|
|
/* initialize variables depending on type and decompressor */
|
|
void pwc_construct(struct pwc_device *pdev)
|
|
{
|
|
if (DEVICE_USE_CODEC1(pdev->type)) {
|
|
|
|
pdev->image_mask = 1 << PSZ_SQCIF | 1 << PSZ_QCIF | 1 << PSZ_CIF;
|
|
pdev->vcinterface = 2;
|
|
pdev->vendpoint = 4;
|
|
pdev->frame_header_size = 0;
|
|
pdev->frame_trailer_size = 0;
|
|
|
|
} else if (DEVICE_USE_CODEC3(pdev->type)) {
|
|
|
|
pdev->image_mask = 1 << PSZ_QSIF | 1 << PSZ_SIF | 1 << PSZ_VGA;
|
|
pdev->vcinterface = 3;
|
|
pdev->vendpoint = 5;
|
|
pdev->frame_header_size = TOUCAM_HEADER_SIZE;
|
|
pdev->frame_trailer_size = TOUCAM_TRAILER_SIZE;
|
|
|
|
} else /* if (DEVICE_USE_CODEC2(pdev->type)) */ {
|
|
|
|
pdev->image_mask = 1 << PSZ_SQCIF | 1 << PSZ_QSIF | 1 << PSZ_QCIF | 1 << PSZ_SIF | 1 << PSZ_CIF | 1 << PSZ_VGA;
|
|
pdev->vcinterface = 3;
|
|
pdev->vendpoint = 4;
|
|
pdev->frame_header_size = 0;
|
|
pdev->frame_trailer_size = 0;
|
|
}
|
|
}
|