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Diffstat (limited to 'drivers/media/video/tea5767.c')
-rw-r--r--drivers/media/video/tea5767.c34
1 files changed, 19 insertions, 15 deletions
diff --git a/drivers/media/video/tea5767.c b/drivers/media/video/tea5767.c
index b53c748caf2a..4d27ac1b7fb8 100644
--- a/drivers/media/video/tea5767.c
+++ b/drivers/media/video/tea5767.c
@@ -2,7 +2,7 @@
2 * For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview 2 * For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview
3 * I2C address is allways 0xC0. 3 * I2C address is allways 0xC0.
4 * 4 *
5 * $Id: tea5767.c,v 1.18 2005/07/07 03:02:55 mchehab Exp $ 5 * $Id: tea5767.c,v 1.21 2005/07/14 03:06:43 mchehab Exp $
6 * 6 *
7 * Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@brturbo.com.br) 7 * Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@brturbo.com.br)
8 * This code is placed under the terms of the GNU General Public License 8 * This code is placed under the terms of the GNU General Public License
@@ -153,17 +153,17 @@ static void tea5767_status_dump(unsigned char *buffer)
153 153
154 switch (TEA5767_HIGH_LO_32768) { 154 switch (TEA5767_HIGH_LO_32768) {
155 case TEA5767_HIGH_LO_13MHz: 155 case TEA5767_HIGH_LO_13MHz:
156 frq = 1000 * (div * 50 - 700 - 225) / 4; /* Freq in KHz */ 156 frq = (div * 50000 - 700000 - 225000) / 4; /* Freq in KHz */
157 break; 157 break;
158 case TEA5767_LOW_LO_13MHz: 158 case TEA5767_LOW_LO_13MHz:
159 frq = 1000 * (div * 50 + 700 + 225) / 4; /* Freq in KHz */ 159 frq = (div * 50000 + 700000 + 225000) / 4; /* Freq in KHz */
160 break; 160 break;
161 case TEA5767_LOW_LO_32768: 161 case TEA5767_LOW_LO_32768:
162 frq = 1000 * (div * 32768 / 1000 + 700 + 225) / 4; /* Freq in KHz */ 162 frq = (div * 32768 + 700000 + 225000) / 4; /* Freq in KHz */
163 break; 163 break;
164 case TEA5767_HIGH_LO_32768: 164 case TEA5767_HIGH_LO_32768:
165 default: 165 default:
166 frq = 1000 * (div * 32768 / 1000 - 700 - 225) / 4; /* Freq in KHz */ 166 frq = (div * 32768 - 700000 - 225000) / 4; /* Freq in KHz */
167 break; 167 break;
168 } 168 }
169 buffer[0] = (div >> 8) & 0x3f; 169 buffer[0] = (div >> 8) & 0x3f;
@@ -196,7 +196,7 @@ static void set_radio_freq(struct i2c_client *c, unsigned int frq)
196 unsigned div; 196 unsigned div;
197 int rc; 197 int rc;
198 198
199 tuner_dbg (PREFIX "radio freq counter %d\n", frq); 199 tuner_dbg (PREFIX "radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000);
200 200
201 /* Rounds freq to next decimal value - for 62.5 KHz step */ 201 /* Rounds freq to next decimal value - for 62.5 KHz step */
202 /* frq = 20*(frq/16)+radio_frq[frq%16]; */ 202 /* frq = 20*(frq/16)+radio_frq[frq%16]; */
@@ -224,19 +224,19 @@ static void set_radio_freq(struct i2c_client *c, unsigned int frq)
224 tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 13 MHz\n"); 224 tuner_dbg ("TEA5767 radio HIGH LO inject xtal @ 13 MHz\n");
225 buffer[2] |= TEA5767_HIGH_LO_INJECT; 225 buffer[2] |= TEA5767_HIGH_LO_INJECT;
226 buffer[4] |= TEA5767_PLLREF_ENABLE; 226 buffer[4] |= TEA5767_PLLREF_ENABLE;
227 div = (frq * 4 / 16 + 700 + 225 + 25) / 50; 227 div = (frq * 4000 / 16 + 700000 + 225000 + 25000) / 50000;
228 break; 228 break;
229 case TEA5767_LOW_LO_13MHz: 229 case TEA5767_LOW_LO_13MHz:
230 tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 13 MHz\n"); 230 tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 13 MHz\n");
231 231
232 buffer[4] |= TEA5767_PLLREF_ENABLE; 232 buffer[4] |= TEA5767_PLLREF_ENABLE;
233 div = (frq * 4 / 16 - 700 - 225 + 25) / 50; 233 div = (frq * 4000 / 16 - 700000 - 225000 + 25000) / 50000;
234 break; 234 break;
235 case TEA5767_LOW_LO_32768: 235 case TEA5767_LOW_LO_32768:
236 tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 32,768 MHz\n"); 236 tuner_dbg ("TEA5767 radio LOW LO inject xtal @ 32,768 MHz\n");
237 buffer[3] |= TEA5767_XTAL_32768; 237 buffer[3] |= TEA5767_XTAL_32768;
238 /* const 700=4000*175 Khz - to adjust freq to right value */ 238 /* const 700=4000*175 Khz - to adjust freq to right value */
239 div = (1000 * (frq * 4 / 16 - 700 - 225) + 16384) >> 15; 239 div = ((frq * 4000 / 16 - 700000 - 225000) + 16384) >> 15;
240 break; 240 break;
241 case TEA5767_HIGH_LO_32768: 241 case TEA5767_HIGH_LO_32768:
242 default: 242 default:
@@ -244,17 +244,21 @@ static void set_radio_freq(struct i2c_client *c, unsigned int frq)
244 244
245 buffer[2] |= TEA5767_HIGH_LO_INJECT; 245 buffer[2] |= TEA5767_HIGH_LO_INJECT;
246 buffer[3] |= TEA5767_XTAL_32768; 246 buffer[3] |= TEA5767_XTAL_32768;
247 div = (1000 * (frq * 4 / 16 + 700 + 225) + 16384) >> 15; 247 div = ((frq * (4000 / 16) + 700000 + 225000) + 16384) >> 15;
248 break; 248 break;
249 } 249 }
250 buffer[0] = (div >> 8) & 0x3f; 250 buffer[0] = (div >> 8) & 0x3f;
251 buffer[1] = div & 0xff; 251 buffer[1] = div & 0xff;
252 252
253 if (tuner_debug)
254 tea5767_status_dump(buffer);
255
256 if (5 != (rc = i2c_master_send(c, buffer, 5))) 253 if (5 != (rc = i2c_master_send(c, buffer, 5)))
257 tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc); 254 tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
255
256 if (tuner_debug) {
257 if (5 != (rc = i2c_master_recv(c, buffer, 5)))
258 tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
259 else
260 tea5767_status_dump(buffer);
261 }
258} 262}
259 263
260static int tea5767_signal(struct i2c_client *c) 264static int tea5767_signal(struct i2c_client *c)
@@ -294,7 +298,7 @@ int tea5767_autodetection(struct i2c_client *c)
294 struct tuner *t = i2c_get_clientdata(c); 298 struct tuner *t = i2c_get_clientdata(c);
295 299
296 if (5 != (rc = i2c_master_recv(c, buffer, 5))) { 300 if (5 != (rc = i2c_master_recv(c, buffer, 5))) {
297 tuner_warn("it is not a TEA5767. Received %i chars.\n", rc); 301 tuner_warn("It is not a TEA5767. Received %i bytes.\n", rc);
298 return EINVAL; 302 return EINVAL;
299 } 303 }
300 304
@@ -310,11 +314,11 @@ int tea5767_autodetection(struct i2c_client *c)
310 * bit 0 : internally set to 0 314 * bit 0 : internally set to 0
311 * Byte 5: bit 7:0 : == 0 315 * Byte 5: bit 7:0 : == 0
312 */ 316 */
313
314 if (!((buffer[3] & 0x0f) == 0x00) && (buffer[4] == 0x00)) { 317 if (!((buffer[3] & 0x0f) == 0x00) && (buffer[4] == 0x00)) {
315 tuner_warn("Chip ID is not zero. It is not a TEA5767\n"); 318 tuner_warn("Chip ID is not zero. It is not a TEA5767\n");
316 return EINVAL; 319 return EINVAL;
317 } 320 }
321
318 tuner_warn("TEA5767 detected.\n"); 322 tuner_warn("TEA5767 detected.\n");
319 return 0; 323 return 0;
320} 324}