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Diffstat (limited to 'drivers/media/video/cx25840/cx25840-vbi.c')
-rw-r--r--drivers/media/video/cx25840/cx25840-vbi.c256
1 files changed, 0 insertions, 256 deletions
diff --git a/drivers/media/video/cx25840/cx25840-vbi.c b/drivers/media/video/cx25840/cx25840-vbi.c
deleted file mode 100644
index 64a4004f8a97..000000000000
--- a/drivers/media/video/cx25840/cx25840-vbi.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/* cx25840 VBI functions
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-
-
-#include <linux/videodev2.h>
-#include <linux/i2c.h>
-#include <media/v4l2-common.h>
-#include <media/cx25840.h>
-
-#include "cx25840-core.h"
-
-static int odd_parity(u8 c)
-{
- c ^= (c >> 4);
- c ^= (c >> 2);
- c ^= (c >> 1);
-
- return c & 1;
-}
-
-static int decode_vps(u8 * dst, u8 * p)
-{
- static const u8 biphase_tbl[] = {
- 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,
- 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,
- 0xd2, 0x5a, 0x52, 0xd2, 0x96, 0x1e, 0x16, 0x96,
- 0x92, 0x1a, 0x12, 0x92, 0xd2, 0x5a, 0x52, 0xd2,
- 0xd0, 0x58, 0x50, 0xd0, 0x94, 0x1c, 0x14, 0x94,
- 0x90, 0x18, 0x10, 0x90, 0xd0, 0x58, 0x50, 0xd0,
- 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,
- 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,
- 0xe1, 0x69, 0x61, 0xe1, 0xa5, 0x2d, 0x25, 0xa5,
- 0xa1, 0x29, 0x21, 0xa1, 0xe1, 0x69, 0x61, 0xe1,
- 0xc3, 0x4b, 0x43, 0xc3, 0x87, 0x0f, 0x07, 0x87,
- 0x83, 0x0b, 0x03, 0x83, 0xc3, 0x4b, 0x43, 0xc3,
- 0xc1, 0x49, 0x41, 0xc1, 0x85, 0x0d, 0x05, 0x85,
- 0x81, 0x09, 0x01, 0x81, 0xc1, 0x49, 0x41, 0xc1,
- 0xe1, 0x69, 0x61, 0xe1, 0xa5, 0x2d, 0x25, 0xa5,
- 0xa1, 0x29, 0x21, 0xa1, 0xe1, 0x69, 0x61, 0xe1,
- 0xe0, 0x68, 0x60, 0xe0, 0xa4, 0x2c, 0x24, 0xa4,
- 0xa0, 0x28, 0x20, 0xa0, 0xe0, 0x68, 0x60, 0xe0,
- 0xc2, 0x4a, 0x42, 0xc2, 0x86, 0x0e, 0x06, 0x86,
- 0x82, 0x0a, 0x02, 0x82, 0xc2, 0x4a, 0x42, 0xc2,
- 0xc0, 0x48, 0x40, 0xc0, 0x84, 0x0c, 0x04, 0x84,
- 0x80, 0x08, 0x00, 0x80, 0xc0, 0x48, 0x40, 0xc0,
- 0xe0, 0x68, 0x60, 0xe0, 0xa4, 0x2c, 0x24, 0xa4,
- 0xa0, 0x28, 0x20, 0xa0, 0xe0, 0x68, 0x60, 0xe0,
- 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,
- 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,
- 0xd2, 0x5a, 0x52, 0xd2, 0x96, 0x1e, 0x16, 0x96,
- 0x92, 0x1a, 0x12, 0x92, 0xd2, 0x5a, 0x52, 0xd2,
- 0xd0, 0x58, 0x50, 0xd0, 0x94, 0x1c, 0x14, 0x94,
- 0x90, 0x18, 0x10, 0x90, 0xd0, 0x58, 0x50, 0xd0,
- 0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,
- 0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,
- };
-
- u8 c, err = 0;
- int i;
-
- for (i = 0; i < 2 * 13; i += 2) {
- err |= biphase_tbl[p[i]] | biphase_tbl[p[i + 1]];
- c = (biphase_tbl[p[i + 1]] & 0xf) |
- ((biphase_tbl[p[i]] & 0xf) << 4);
- dst[i / 2] = c;
- }
-
- return err & 0xf0;
-}
-
-int cx25840_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct cx25840_state *state = to_state(sd);
- static const u16 lcr2vbi[] = {
- 0, V4L2_SLICED_TELETEXT_B, 0, /* 1 */
- 0, V4L2_SLICED_WSS_625, 0, /* 4 */
- V4L2_SLICED_CAPTION_525, /* 6 */
- 0, 0, V4L2_SLICED_VPS, 0, 0, /* 9 */
- 0, 0, 0, 0
- };
- int is_pal = !(state->std & V4L2_STD_525_60);
- int i;
-
- memset(svbi, 0, sizeof(*svbi));
- /* we're done if raw VBI is active */
- if ((cx25840_read(client, 0x404) & 0x10) == 0)
- return 0;
-
- if (is_pal) {
- for (i = 7; i <= 23; i++) {
- u8 v = cx25840_read(client, 0x424 + i - 7);
-
- svbi->service_lines[0][i] = lcr2vbi[v >> 4];
- svbi->service_lines[1][i] = lcr2vbi[v & 0xf];
- svbi->service_set |= svbi->service_lines[0][i] |
- svbi->service_lines[1][i];
- }
- } else {
- for (i = 10; i <= 21; i++) {
- u8 v = cx25840_read(client, 0x424 + i - 10);
-
- svbi->service_lines[0][i] = lcr2vbi[v >> 4];
- svbi->service_lines[1][i] = lcr2vbi[v & 0xf];
- svbi->service_set |= svbi->service_lines[0][i] |
- svbi->service_lines[1][i];
- }
- }
- return 0;
-}
-
-int cx25840_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct cx25840_state *state = to_state(sd);
- int is_pal = !(state->std & V4L2_STD_525_60);
- int vbi_offset = is_pal ? 1 : 0;
-
- /* Setup standard */
- cx25840_std_setup(client);
-
- /* VBI Offset */
- cx25840_write(client, 0x47f, vbi_offset);
- cx25840_write(client, 0x404, 0x2e);
- return 0;
-}
-
-int cx25840_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct cx25840_state *state = to_state(sd);
- int is_pal = !(state->std & V4L2_STD_525_60);
- int vbi_offset = is_pal ? 1 : 0;
- int i, x;
- u8 lcr[24];
-
- for (x = 0; x <= 23; x++)
- lcr[x] = 0x00;
-
- /* Setup standard */
- cx25840_std_setup(client);
-
- /* Sliced VBI */
- cx25840_write(client, 0x404, 0x32); /* Ancillary data */
- cx25840_write(client, 0x406, 0x13);
- cx25840_write(client, 0x47f, vbi_offset);
-
- if (is_pal) {
- for (i = 0; i <= 6; i++)
- svbi->service_lines[0][i] =
- svbi->service_lines[1][i] = 0;
- } else {
- for (i = 0; i <= 9; i++)
- svbi->service_lines[0][i] =
- svbi->service_lines[1][i] = 0;
-
- for (i = 22; i <= 23; i++)
- svbi->service_lines[0][i] =
- svbi->service_lines[1][i] = 0;
- }
-
- for (i = 7; i <= 23; i++) {
- for (x = 0; x <= 1; x++) {
- switch (svbi->service_lines[1-x][i]) {
- case V4L2_SLICED_TELETEXT_B:
- lcr[i] |= 1 << (4 * x);
- break;
- case V4L2_SLICED_WSS_625:
- lcr[i] |= 4 << (4 * x);
- break;
- case V4L2_SLICED_CAPTION_525:
- lcr[i] |= 6 << (4 * x);
- break;
- case V4L2_SLICED_VPS:
- lcr[i] |= 9 << (4 * x);
- break;
- }
- }
- }
-
- if (is_pal) {
- for (x = 1, i = 0x424; i <= 0x434; i++, x++)
- cx25840_write(client, i, lcr[6 + x]);
- } else {
- for (x = 1, i = 0x424; i <= 0x430; i++, x++)
- cx25840_write(client, i, lcr[9 + x]);
- for (i = 0x431; i <= 0x434; i++)
- cx25840_write(client, i, 0);
- }
-
- cx25840_write(client, 0x43c, 0x16);
- cx25840_write(client, 0x474, is_pal ? 0x2a : 0x22);
- return 0;
-}
-
-int cx25840_decode_vbi_line(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi)
-{
- struct cx25840_state *state = to_state(sd);
- u8 *p = vbi->p;
- int id1, id2, l, err = 0;
-
- if (p[0] || p[1] != 0xff || p[2] != 0xff ||
- (p[3] != 0x55 && p[3] != 0x91)) {
- vbi->line = vbi->type = 0;
- return 0;
- }
-
- p += 4;
- id1 = p[-1];
- id2 = p[0] & 0xf;
- l = p[2] & 0x3f;
- l += state->vbi_line_offset;
- p += 4;
-
- switch (id2) {
- case 1:
- id2 = V4L2_SLICED_TELETEXT_B;
- break;
- case 4:
- id2 = V4L2_SLICED_WSS_625;
- break;
- case 6:
- id2 = V4L2_SLICED_CAPTION_525;
- err = !odd_parity(p[0]) || !odd_parity(p[1]);
- break;
- case 9:
- id2 = V4L2_SLICED_VPS;
- if (decode_vps(p, p) != 0)
- err = 1;
- break;
- default:
- id2 = 0;
- err = 1;
- break;
- }
-
- vbi->type = err ? 0 : id2;
- vbi->line = err ? 0 : l;
- vbi->is_second_field = err ? 0 : (id1 == 0x55);
- vbi->p = p;
- return 0;
-}
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-10 10:56:47 +0000