18  *	4 byte EAV code:          0xff 0x00 0x00 0xRP
20  *	3 byte Anc data preamble: 0x00 0xff 0xff
24  *	2 byte Internal DID:	  VBI-line-# 0x80
31  *	0xb0 (Task         0 VerticalBlank HorizontalBlank 0 0 0 0)
32  *	0xf0 (Task EvenField VerticalBlank HorizontalBlank 0 0 0 0)
36  *	0x90 (Task         0 0 HorizontalBlank 0 0 0 0)
37  *	0xd0 (Task EvenField 0 HorizontalBlank 0 0 0 0)
40  *	0x91 (1 0 010        0 !ActiveLine AncDataPresent)
41  *	0x55 (0 1 010 2ndField !ActiveLine AncDataPresent)
44 static const u8 sliced_vbi_did[2] = { 0x91, 0x55 };
71 		0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,  in decode_vps()
72 		0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,  in decode_vps()
73 		0xd2, 0x5a, 0x52, 0xd2, 0x96, 0x1e, 0x16, 0x96,  in decode_vps()
74 		0x92, 0x1a, 0x12, 0x92, 0xd2, 0x5a, 0x52, 0xd2,  in decode_vps()
75 		0xd0, 0x58, 0x50, 0xd0, 0x94, 0x1c, 0x14, 0x94,  in decode_vps()
76 		0x90, 0x18, 0x10, 0x90, 0xd0, 0x58, 0x50, 0xd0,  in decode_vps()
77 		0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,  in decode_vps()
78 		0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,  in decode_vps()
79 		0xe1, 0x69, 0x61, 0xe1, 0xa5, 0x2d, 0x25, 0xa5,  in decode_vps()
80 		0xa1, 0x29, 0x21, 0xa1, 0xe1, 0x69, 0x61, 0xe1,  in decode_vps()
81 		0xc3, 0x4b, 0x43, 0xc3, 0x87, 0x0f, 0x07, 0x87,  in decode_vps()
82 		0x83, 0x0b, 0x03, 0x83, 0xc3, 0x4b, 0x43, 0xc3,  in decode_vps()
83 		0xc1, 0x49, 0x41, 0xc1, 0x85, 0x0d, 0x05, 0x85,  in decode_vps()
84 		0x81, 0x09, 0x01, 0x81, 0xc1, 0x49, 0x41, 0xc1,  in decode_vps()
85 		0xe1, 0x69, 0x61, 0xe1, 0xa5, 0x2d, 0x25, 0xa5,  in decode_vps()
86 		0xa1, 0x29, 0x21, 0xa1, 0xe1, 0x69, 0x61, 0xe1,  in decode_vps()
87 		0xe0, 0x68, 0x60, 0xe0, 0xa4, 0x2c, 0x24, 0xa4,  in decode_vps()
88 		0xa0, 0x28, 0x20, 0xa0, 0xe0, 0x68, 0x60, 0xe0,  in decode_vps()
89 		0xc2, 0x4a, 0x42, 0xc2, 0x86, 0x0e, 0x06, 0x86,  in decode_vps()
90 		0x82, 0x0a, 0x02, 0x82, 0xc2, 0x4a, 0x42, 0xc2,  in decode_vps()
91 		0xc0, 0x48, 0x40, 0xc0, 0x84, 0x0c, 0x04, 0x84,  in decode_vps()
92 		0x80, 0x08, 0x00, 0x80, 0xc0, 0x48, 0x40, 0xc0,  in decode_vps()
93 		0xe0, 0x68, 0x60, 0xe0, 0xa4, 0x2c, 0x24, 0xa4,  in decode_vps()
94 		0xa0, 0x28, 0x20, 0xa0, 0xe0, 0x68, 0x60, 0xe0,  in decode_vps()
95 		0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,  in decode_vps()
96 		0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,  in decode_vps()
97 		0xd2, 0x5a, 0x52, 0xd2, 0x96, 0x1e, 0x16, 0x96,  in decode_vps()
98 		0x92, 0x1a, 0x12, 0x92, 0xd2, 0x5a, 0x52, 0xd2,  in decode_vps()
99 		0xd0, 0x58, 0x50, 0xd0, 0x94, 0x1c, 0x14, 0x94,  in decode_vps()
100 		0x90, 0x18, 0x10, 0x90, 0xd0, 0x58, 0x50, 0xd0,  in decode_vps()
101 		0xf0, 0x78, 0x70, 0xf0, 0xb4, 0x3c, 0x34, 0xb4,  in decode_vps()
102 		0xb0, 0x38, 0x30, 0xb0, 0xf0, 0x78, 0x70, 0xf0,  in decode_vps()
105 	u8 c, err = 0;  in decode_vps()
108 	for (i = 0; i < 2 * 13; i += 2) {  in decode_vps()
110 		c = (biphase_tbl[p[i + 1]] & 0xf) |  in decode_vps()
111 		    ((biphase_tbl[p[i]] & 0xf) << 4);  in decode_vps()
115 	return err & 0xf0;  in decode_vps()
123 		0, V4L2_SLICED_TELETEXT_B, 0,	/* 1 */  in cx18_av_g_sliced_fmt()
124 		0, V4L2_SLICED_WSS_625, 0,	/* 4 */  in cx18_av_g_sliced_fmt()
126 		0, 0, V4L2_SLICED_VPS, 0, 0,	/* 9 */  in cx18_av_g_sliced_fmt()
127 		0, 0, 0, 0  in cx18_av_g_sliced_fmt()
132 	memset(svbi->service_lines, 0, sizeof(svbi->service_lines));  in cx18_av_g_sliced_fmt()
133 	svbi->service_set = 0;  in cx18_av_g_sliced_fmt()
136 	if ((cx18_av_read(cx, 0x404) & 0x10) == 0)  in cx18_av_g_sliced_fmt()
137 		return 0;  in cx18_av_g_sliced_fmt()
141 			u8 v = cx18_av_read(cx, 0x424 + i - 7);  in cx18_av_g_sliced_fmt()
143 			svbi->service_lines[0][i] = lcr2vbi[v >> 4];  in cx18_av_g_sliced_fmt()
144 			svbi->service_lines[1][i] = lcr2vbi[v & 0xf];  in cx18_av_g_sliced_fmt()
145 			svbi->service_set |= svbi->service_lines[0][i] |  in cx18_av_g_sliced_fmt()
150 			u8 v = cx18_av_read(cx, 0x424 + i - 10);  in cx18_av_g_sliced_fmt()
152 			svbi->service_lines[0][i] = lcr2vbi[v >> 4];  in cx18_av_g_sliced_fmt()
153 			svbi->service_lines[1][i] = lcr2vbi[v & 0xf];  in cx18_av_g_sliced_fmt()
154 			svbi->service_set |= svbi->service_lines[0][i] |  in cx18_av_g_sliced_fmt()
158 	return 0;  in cx18_av_g_sliced_fmt()
170 	cx18_av_write(cx, 0x47f, state->slicer_line_delay);  in cx18_av_s_raw_fmt()
171 	cx18_av_write(cx, 0x404, 0x2e);  in cx18_av_s_raw_fmt()
172 	return 0;  in cx18_av_s_raw_fmt()
183 	for (x = 0; x <= 23; x++)  in cx18_av_s_sliced_fmt()
184 		lcr[x] = 0x00;  in cx18_av_s_sliced_fmt()
190 	cx18_av_write(cx, 0x404, 0x32);	/* Ancillary data */  in cx18_av_s_sliced_fmt()
191 	cx18_av_write(cx, 0x406, 0x13);  in cx18_av_s_sliced_fmt()
192 	cx18_av_write(cx, 0x47f, state->slicer_line_delay);  in cx18_av_s_sliced_fmt()
194 	/* Force impossible lines to 0 */  in cx18_av_s_sliced_fmt()
196 		for (i = 0; i <= 6; i++)  in cx18_av_s_sliced_fmt()
197 			svbi->service_lines[0][i] =  in cx18_av_s_sliced_fmt()
198 				svbi->service_lines[1][i] = 0;  in cx18_av_s_sliced_fmt()
200 		for (i = 0; i <= 9; i++)  in cx18_av_s_sliced_fmt()
201 			svbi->service_lines[0][i] =  in cx18_av_s_sliced_fmt()
202 				svbi->service_lines[1][i] = 0;  in cx18_av_s_sliced_fmt()
205 			svbi->service_lines[0][i] =  in cx18_av_s_sliced_fmt()
206 				svbi->service_lines[1][i] = 0;  in cx18_av_s_sliced_fmt()
211 		for (x = 0; x <= 1; x++) {  in cx18_av_s_sliced_fmt()
230 		for (x = 1, i = 0x424; i <= 0x434; i++, x++)  in cx18_av_s_sliced_fmt()
233 		for (x = 1, i = 0x424; i <= 0x430; i++, x++)  in cx18_av_s_sliced_fmt()
235 		for (i = 0x431; i <= 0x434; i++)  in cx18_av_s_sliced_fmt()
236 			cx18_av_write(cx, i, 0);  in cx18_av_s_sliced_fmt()
239 	cx18_av_write(cx, 0x43c, 0x16);  in cx18_av_s_sliced_fmt()
241 	cx18_av_write(cx, 0x474, is_pal ? 38 : 26);  in cx18_av_s_sliced_fmt()
242 	return 0;  in cx18_av_s_sliced_fmt()
252 	int did, sdid, l, err = 0;  in cx18_av_decode_vbi_line()
257 	if (anc->preamble[0] ||  in cx18_av_decode_vbi_line()
258 			anc->preamble[1] != 0xff || anc->preamble[2] != 0xff ||  in cx18_av_decode_vbi_line()
259 			(anc->did != sliced_vbi_did[0] &&  in cx18_av_decode_vbi_line()
261 		vbi->line = vbi->type = 0;  in cx18_av_decode_vbi_line()
262 		return 0;  in cx18_av_decode_vbi_line()
266 	sdid = anc->sdid & 0xf;  in cx18_av_decode_vbi_line()
267 	l = anc->idid[0] & 0x3f;  in cx18_av_decode_vbi_line()
281 		err = !odd_parity(p[0]) || !odd_parity(p[1]);  in cx18_av_decode_vbi_line()
285 		if (decode_vps(p, p) != 0)  in cx18_av_decode_vbi_line()
289 		sdid = 0;  in cx18_av_decode_vbi_line()
294 	vbi->type = err ? 0 : sdid;  in cx18_av_decode_vbi_line()
295 	vbi->line = err ? 0 : l;  in cx18_av_decode_vbi_line()
296 	vbi->is_second_field = err ? 0 : (did == sliced_vbi_did[1]);  in cx18_av_decode_vbi_line()
298 	return 0;  in cx18_av_decode_vbi_line()