diff options
| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-13 23:13:22 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-15 15:25:07 -0400 |
| commit | 0c0d06cac63ee327ceaab4b5ffe2206574ab86bd (patch) | |
| tree | e759f0dc3185d97f2a0c6b5cd5e32ea6faa74d40 /drivers/media/usb/pwc/pwc-misc.c | |
| parent | 84cfe9e79bd5ac11c963f4841158454fefa872f6 (diff) | |
[media] rename most media/video usb drivers to media/usb
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>
Diffstat (limited to 'drivers/media/usb/pwc/pwc-misc.c')
| -rw-r--r-- | drivers/media/usb/pwc/pwc-misc.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/drivers/media/usb/pwc/pwc-misc.c b/drivers/media/usb/pwc/pwc-misc.c new file mode 100644 index 000000000000..9be5adffa874 --- /dev/null +++ b/drivers/media/usb/pwc/pwc-misc.c | |||
| @@ -0,0 +1,93 @@ | |||
| 1 | /* Linux driver for Philips webcam | ||
| 2 | Various miscellaneous functions and tables. | ||
| 3 | (C) 1999-2003 Nemosoft Unv. | ||
| 4 | (C) 2004-2006 Luc Saillard (luc@saillard.org) | ||
| 5 | |||
| 6 | NOTE: this version of pwc is an unofficial (modified) release of pwc & pcwx | ||
| 7 | driver and thus may have bugs that are not present in the original version. | ||
| 8 | Please send bug reports and support requests to <luc@saillard.org>. | ||
| 9 | The decompression routines have been implemented by reverse-engineering the | ||
| 10 | Nemosoft binary pwcx module. Caveat emptor. | ||
| 11 | |||
| 12 | This program is free software; you can redistribute it and/or modify | ||
| 13 | it under the terms of the GNU General Public License as published by | ||
| 14 | the Free Software Foundation; either version 2 of the License, or | ||
| 15 | (at your option) any later version. | ||
| 16 | |||
| 17 | This program is distributed in the hope that it will be useful, | ||
| 18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 20 | GNU General Public License for more details. | ||
| 21 | |||
| 22 | You should have received a copy of the GNU General Public License | ||
| 23 | along with this program; if not, write to the Free Software | ||
| 24 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 25 | */ | ||
| 26 | |||
| 27 | |||
| 28 | #include "pwc.h" | ||
| 29 | |||
| 30 | const int pwc_image_sizes[PSZ_MAX][2] = | ||
| 31 | { | ||
| 32 | { 128, 96 }, /* sqcif */ | ||
| 33 | { 160, 120 }, /* qsif */ | ||
| 34 | { 176, 144 }, /* qcif */ | ||
| 35 | { 320, 240 }, /* sif */ | ||
| 36 | { 352, 288 }, /* cif */ | ||
| 37 | { 640, 480 }, /* vga */ | ||
| 38 | }; | ||
| 39 | |||
| 40 | /* x,y -> PSZ_ */ | ||
| 41 | int pwc_get_size(struct pwc_device *pdev, int width, int height) | ||
| 42 | { | ||
| 43 | int i; | ||
| 44 | |||
| 45 | /* Find the largest size supported by the camera that fits into the | ||
| 46 | requested size. */ | ||
| 47 | for (i = PSZ_MAX - 1; i >= 0; i--) { | ||
| 48 | if (!(pdev->image_mask & (1 << i))) | ||
| 49 | continue; | ||
| 50 | |||
| 51 | if (pwc_image_sizes[i][0] <= width && | ||
| 52 | pwc_image_sizes[i][1] <= height) | ||
| 53 | return i; | ||
| 54 | } | ||
| 55 | |||
| 56 | /* No mode found, return the smallest mode we have */ | ||
| 57 | for (i = 0; i < PSZ_MAX; i++) { | ||
| 58 | if (pdev->image_mask & (1 << i)) | ||
| 59 | return i; | ||
| 60 | } | ||
| 61 | |||
| 62 | /* Never reached there always is atleast one supported mode */ | ||
| 63 | return 0; | ||
| 64 | } | ||
| 65 | |||
| 66 | /* initialize variables depending on type and decompressor */ | ||
| 67 | void pwc_construct(struct pwc_device *pdev) | ||
| 68 | { | ||
| 69 | if (DEVICE_USE_CODEC1(pdev->type)) { | ||
| 70 | |||
| 71 | pdev->image_mask = 1 << PSZ_SQCIF | 1 << PSZ_QCIF | 1 << PSZ_CIF; | ||
| 72 | pdev->vcinterface = 2; | ||
| 73 | pdev->vendpoint = 4; | ||
| 74 | pdev->frame_header_size = 0; | ||
| 75 | pdev->frame_trailer_size = 0; | ||
| 76 | |||
| 77 | } else if (DEVICE_USE_CODEC3(pdev->type)) { | ||
| 78 | |||
| 79 | pdev->image_mask = 1 << PSZ_QSIF | 1 << PSZ_SIF | 1 << PSZ_VGA; | ||
| 80 | pdev->vcinterface = 3; | ||
| 81 | pdev->vendpoint = 5; | ||
| 82 | pdev->frame_header_size = TOUCAM_HEADER_SIZE; | ||
| 83 | pdev->frame_trailer_size = TOUCAM_TRAILER_SIZE; | ||
| 84 | |||
| 85 | } else /* if (DEVICE_USE_CODEC2(pdev->type)) */ { | ||
| 86 | |||
| 87 | pdev->image_mask = 1 << PSZ_SQCIF | 1 << PSZ_QSIF | 1 << PSZ_QCIF | 1 << PSZ_SIF | 1 << PSZ_CIF | 1 << PSZ_VGA; | ||
| 88 | pdev->vcinterface = 3; | ||
| 89 | pdev->vendpoint = 4; | ||
| 90 | pdev->frame_header_size = 0; | ||
| 91 | pdev->frame_trailer_size = 0; | ||
| 92 | } | ||
| 93 | } | ||
