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path: root/drivers/media/video/cx25840/cx25840-vbi.c
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Diffstat (limited to 'drivers/media/video/cx25840/cx25840-vbi.c')
-rw-r--r--drivers/media/video/cx25840/cx25840-vbi.c177
1 files changed, 130 insertions, 47 deletions
diff --git a/drivers/media/video/cx25840/cx25840-vbi.c b/drivers/media/video/cx25840/cx25840-vbi.c
index 57feca288d2b..6cc8bf215e85 100644
--- a/drivers/media/video/cx25840/cx25840-vbi.c
+++ b/drivers/media/video/cx25840/cx25840-vbi.c
@@ -84,67 +84,140 @@ static int decode_vps(u8 * dst, u8 * p)
84 84
85void cx25840_vbi_setup(struct i2c_client *client) 85void cx25840_vbi_setup(struct i2c_client *client)
86{ 86{
87 struct cx25840_state *state = i2c_get_clientdata(client);
87 v4l2_std_id std = cx25840_get_v4lstd(client); 88 v4l2_std_id std = cx25840_get_v4lstd(client);
89 int hblank,hactive,burst,vblank,vactive,sc,vblank656,src_decimation;
90 int luma_lpf,uv_lpf, comb;
91 u32 pll_int,pll_frac,pll_post;
88 92
93 /* datasheet startup, step 8d */
89 if (std & ~V4L2_STD_NTSC) { 94 if (std & ~V4L2_STD_NTSC) {
90 /* datasheet startup, step 8d */
91 cx25840_write(client, 0x49f, 0x11); 95 cx25840_write(client, 0x49f, 0x11);
96 } else {
97 cx25840_write(client, 0x49f, 0x14);
98 }
92 99
93 cx25840_write(client, 0x470, 0x84); 100 if (std & V4L2_STD_625_50) {
94 cx25840_write(client, 0x471, 0x00); 101 hblank=0x084;
95 cx25840_write(client, 0x472, 0x2d); 102 hactive=0x2d0;
96 cx25840_write(client, 0x473, 0x5d); 103 burst=0x5d;
97 104 vblank=0x024;
98 cx25840_write(client, 0x474, 0x24); 105 vactive=0x244;
99 cx25840_write(client, 0x475, 0x40); 106 vblank656=0x28;
100 cx25840_write(client, 0x476, 0x24); 107 src_decimation=0x21f;
101 cx25840_write(client, 0x477, 0x28);
102
103 cx25840_write(client, 0x478, 0x1f);
104 cx25840_write(client, 0x479, 0x02);
105 108
109 luma_lpf=2;
106 if (std & V4L2_STD_SECAM) { 110 if (std & V4L2_STD_SECAM) {
107 cx25840_write(client, 0x47a, 0x80); 111 uv_lpf=0;
108 cx25840_write(client, 0x47b, 0x00); 112 comb=0;
109 cx25840_write(client, 0x47c, 0x5f); 113 sc=0x0a425f;
110 cx25840_write(client, 0x47d, 0x42);
111 } else { 114 } else {
112 cx25840_write(client, 0x47a, 0x90); 115 uv_lpf=1;
113 cx25840_write(client, 0x47b, 0x20); 116 comb=0x20;
114 cx25840_write(client, 0x47c, 0x63); 117 sc=0x0a8263;
115 cx25840_write(client, 0x47d, 0x82);
116 } 118 }
117
118 cx25840_write(client, 0x47e, 0x0a);
119 cx25840_write(client, 0x47f, 0x01);
120 } else { 119 } else {
121 /* datasheet startup, step 8d */ 120 hactive=720;
122 cx25840_write(client, 0x49f, 0x14); 121 hblank=122;
122 vactive=487;
123 luma_lpf=1;
124 uv_lpf=1;
125
126 src_decimation=0x21f;
127 if (std == V4L2_STD_PAL_M) {
128 vblank=20;
129 vblank656=24;
130 burst=0x61;
131 comb=0x20;
132
133 sc=555452;
134 } else {
135 vblank=26;
136 vblank656=26;
137 burst=0x5b;
138 comb=0x66;
139 sc=556063;
140 }
141 }
142
143 /* DEBUG: Displays configured PLL frequency */
144 pll_int=cx25840_read(client, 0x108);
145 pll_frac=cx25840_read4(client, 0x10c)&0x1ffffff;
146 pll_post=cx25840_read(client, 0x109);
147 v4l_dbg(1, cx25840_debug, client,
148 "PLL regs = int: %u, frac: %u, post: %u\n",
149 pll_int,pll_frac,pll_post);
150
151 if (pll_post) {
152 int fin, fsc;
153 int pll= (28636363L*((((u64)pll_int)<<25L)+pll_frac)) >>25L;
154
155 pll/=pll_post;
156 v4l_dbg(1, cx25840_debug, client, "PLL = %d.%06d MHz\n",
157 pll/1000000, pll%1000000);
158 v4l_dbg(1, cx25840_debug, client, "PLL/8 = %d.%06d MHz\n",
159 pll/8000000, (pll/8)%1000000);
160
161 fin=((u64)src_decimation*pll)>>12;
162 v4l_dbg(1, cx25840_debug, client, "ADC Sampling freq = "
163 "%d.%06d MHz\n",
164 fin/1000000,fin%1000000);
165
166 fsc= (((u64)sc)*pll) >> 24L;
167 v4l_dbg(1, cx25840_debug, client, "Chroma sub-carrier freq = "
168 "%d.%06d MHz\n",
169 fsc/1000000,fsc%1000000);
170
171 v4l_dbg(1, cx25840_debug, client, "hblank %i, hactive %i, "
172 "vblank %i , vactive %i, vblank656 %i, src_dec %i,"
173 "burst 0x%02x, luma_lpf %i, uv_lpf %i, comb 0x%02x,"
174 " sc 0x%06x\n",
175 hblank, hactive, vblank, vactive, vblank656,
176 src_decimation, burst, luma_lpf, uv_lpf, comb, sc);
177 }
178
179 /* Sets horizontal blanking delay and active lines */
180 cx25840_write(client, 0x470, hblank);
181 cx25840_write(client, 0x471, 0xff&(((hblank>>8)&0x3)|(hactive <<4)));
182 cx25840_write(client, 0x472, hactive>>4);
183
184 /* Sets burst gate delay */
185 cx25840_write(client, 0x473, burst);
123 186
124 cx25840_write(client, 0x470, 0x7a); 187 /* Sets vertical blanking delay and active duration */
125 cx25840_write(client, 0x471, 0x00); 188 cx25840_write(client, 0x474, vblank);
126 cx25840_write(client, 0x472, 0x2d); 189 cx25840_write(client, 0x475, 0xff&(((vblank>>8)&0x3)|(vactive <<4)));
127 cx25840_write(client, 0x473, 0x5b); 190 cx25840_write(client, 0x476, vactive>>4);
191 cx25840_write(client, 0x477, vblank656);
128 192
129 cx25840_write(client, 0x474, 0x1a); 193 /* Sets src decimation rate */
130 cx25840_write(client, 0x475, 0x70); 194 cx25840_write(client, 0x478, 0xff&src_decimation);
131 cx25840_write(client, 0x476, 0x1e); 195 cx25840_write(client, 0x479, 0xff&(src_decimation>>8));
132 cx25840_write(client, 0x477, 0x1e);
133 196
134 cx25840_write(client, 0x478, 0x1f); 197 /* Sets Luma and UV Low pass filters */
135 cx25840_write(client, 0x479, 0x02); 198 cx25840_write(client, 0x47a, luma_lpf<<6|((uv_lpf<<4)&0x30));
136 cx25840_write(client, 0x47a, 0x50);
137 cx25840_write(client, 0x47b, 0x66);
138 199
139 cx25840_write(client, 0x47c, 0x1f); 200 /* Enables comb filters */
140 cx25840_write(client, 0x47d, 0x7c); 201 cx25840_write(client, 0x47b, comb);
141 cx25840_write(client, 0x47e, 0x08); 202
203 /* Sets SC Step*/
204 cx25840_write(client, 0x47c, sc);
205 cx25840_write(client, 0x47d, 0xff&sc>>8);
206 cx25840_write(client, 0x47e, 0xff&sc>>16);
207
208 /* Sets VBI parameters */
209 if (std & V4L2_STD_625_50) {
210 cx25840_write(client, 0x47f, 0x01);
211 state->vbi_line_offset = 5;
212 } else {
142 cx25840_write(client, 0x47f, 0x00); 213 cx25840_write(client, 0x47f, 0x00);
214 state->vbi_line_offset = 8;
143 } 215 }
144} 216}
145 217
146int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg) 218int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg)
147{ 219{
220 struct cx25840_state *state = i2c_get_clientdata(client);
148 struct v4l2_format *fmt; 221 struct v4l2_format *fmt;
149 struct v4l2_sliced_vbi_format *svbi; 222 struct v4l2_sliced_vbi_format *svbi;
150 223
@@ -182,7 +255,7 @@ int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg)
182 255
183 case VIDIOC_S_FMT: 256 case VIDIOC_S_FMT:
184 { 257 {
185 int is_pal = !(cx25840_get_v4lstd(client) & V4L2_STD_NTSC); 258 int is_pal = !(cx25840_get_v4lstd(client) & V4L2_STD_525_60);
186 int vbi_offset = is_pal ? 1 : 0; 259 int vbi_offset = is_pal ? 1 : 0;
187 int i, x; 260 int i, x;
188 u8 lcr[24]; 261 u8 lcr[24];
@@ -211,7 +284,7 @@ int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg)
211 cx25840_vbi_setup(client); 284 cx25840_vbi_setup(client);
212 285
213 /* Sliced VBI */ 286 /* Sliced VBI */
214 cx25840_write(client, 0x404, 0x36); /* Ancillery data */ 287 cx25840_write(client, 0x404, 0x32); /* Ancillary data */
215 cx25840_write(client, 0x406, 0x13); 288 cx25840_write(client, 0x406, 0x13);
216 cx25840_write(client, 0x47f, vbi_offset); 289 cx25840_write(client, 0x47f, vbi_offset);
217 290
@@ -248,8 +321,18 @@ int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg)
248 } 321 }
249 } 322 }
250 323
251 for (x = 1, i = 0x424; i <= 0x434; i++, x++) { 324 if (is_pal) {
252 cx25840_write(client, i, lcr[6 + x]); 325 for (x = 1, i = 0x424; i <= 0x434; i++, x++) {
326 cx25840_write(client, i, lcr[6 + x]);
327 }
328 }
329 else {
330 for (x = 1, i = 0x424; i <= 0x430; i++, x++) {
331 cx25840_write(client, i, lcr[9 + x]);
332 }
333 for (i = 0x431; i <= 0x434; i++) {
334 cx25840_write(client, i, 0);
335 }
253 } 336 }
254 337
255 cx25840_write(client, 0x43c, 0x16); 338 cx25840_write(client, 0x43c, 0x16);
@@ -257,7 +340,7 @@ int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg)
257 if (is_pal) { 340 if (is_pal) {
258 cx25840_write(client, 0x474, 0x2a); 341 cx25840_write(client, 0x474, 0x2a);
259 } else { 342 } else {
260 cx25840_write(client, 0x474, 0x1a + 6); 343 cx25840_write(client, 0x474, 0x22);
261 } 344 }
262 break; 345 break;
263 } 346 }
@@ -278,7 +361,7 @@ int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg)
278 id1 = p[-1]; 361 id1 = p[-1];
279 id2 = p[0] & 0xf; 362 id2 = p[0] & 0xf;
280 l = p[2] & 0x3f; 363 l = p[2] & 0x3f;
281 l += 5; 364 l += state->vbi_line_offset;
282 p += 4; 365 p += 4;
283 366
284 switch (id2) { 367 switch (id2) {