media/dvb-frontends/cx24110.c

78 	 {0x37,0x00}, /* @ fully enable AutoAcqq state machine */
103 static int cx24110_writereg (struct cx24110_state* state, int reg, int data)
106 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
109 	if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
118 static int cx24110_readreg (struct cx24110_state* state, u8 reg)
123 	struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
124 			   { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
126 	ret = i2c_transfer(state->i2c, msg, 2);
133 static int cx24110_set_inversion(struct cx24110_state *state,
140 		cx24110_writereg(state,0x37,cx24110_readreg(state,0x37)|0x1);
142 		cx24110_writereg(state,0x5,cx24110_readreg(state,0x5)&0xf7);
144 		cx24110_writereg(state,0x22,cx24110_readreg(state,0x22)&0xef);
150 		cx24110_writereg(state,0x37,cx24110_readreg(state,0x37)|0x1);
152 		cx24110_writereg(state,0x5,cx24110_readreg(state,0x5)|0x08);
154 		cx24110_writereg(state,0x22,cx24110_readreg(state,0x22)|0x10);
158 		cx24110_writereg(state,0x37,cx24110_readreg(state,0x37)&0xfe);
168 static int cx24110_set_fec(struct cx24110_state *state, enum fe_code_rate fec)
182 		cx24110_writereg(state, 0x37, cx24110_readreg(state, 0x37) & 0xdf);
184 		cx24110_writereg(state, 0x18, 0xae);
186 		cx24110_writereg(state, 0x05, (cx24110_readreg(state, 0x05) & 0xf0) | 0x3);
188 		cx24110_writereg(state, 0x22, (cx24110_readreg(state, 0x22) & 0xf0) | 0x3);
190 		cx24110_writereg(state, 0x1a, 0x05);
191 		cx24110_writereg(state, 0x1b, 0x06);
195 		cx24110_writereg(state, 0x37, cx24110_readreg(state, 0x37) | 0x20);
200 		cx24110_writereg(state, 0x05, (cx24110_readreg(state, 0x05) & 0xf0) | rate[fec]);
202 		cx24110_writereg(state, 0x22, (cx24110_readreg(state, 0x22) & 0xf0) | rate[fec]);
204 		cx24110_writereg(state, 0x1a, g1[fec]);
205 		cx24110_writereg(state, 0x1b, g2[fec]);
211 static enum fe_code_rate cx24110_get_fec(struct cx24110_state *state)
215 	i=cx24110_readreg(state,0x22)&0x0f;
227 static int cx24110_set_symbolrate (struct cx24110_state *state, u32 srate)
247 	tmp=cx24110_readreg(state,0x07)&0xfc;
249 		cx24110_writereg(state,0x07,tmp);
250 		cx24110_writereg(state,0x06,0x78);
253 		cx24110_writereg(state,0x07,tmp|0x1);
254 		cx24110_writereg(state,0x06,0xa5);
257 		cx24110_writereg(state,0x07,tmp|0x2);
258 		cx24110_writereg(state,0x06,0x87);
261 		cx24110_writereg(state,0x07,tmp|0x3);
262 		cx24110_writereg(state,0x06,0x78);
291 	cx24110_writereg(state, 0x1, (ratio>>16)&0xff);
292 	cx24110_writereg(state, 0x2, (ratio>>8)&0xff);
293 	cx24110_writereg(state, 0x3, (ratio)&0xff);
301 	struct cx24110_state *state = fe->demodulator_priv;
310 	cx24110_writereg(state,0x6d,0x30); /* auto mode at 62kHz */
311 	cx24110_writereg(state,0x70,0x15); /* auto mode 21 bits */
314 	while (cx24110_readreg(state,0x6d)&0x80)
315 		cx24110_writereg(state,0x72,0);
318 	cx24110_writereg(state,0x72,buf[0]);
321 	while ((cx24110_readreg(state,0x6d)&0xc0)==0x80)
325 	cx24110_writereg(state,0x72,buf[1]);
326 	while ((cx24110_readreg(state,0x6d)&0xc0)==0x80)
330 	cx24110_writereg(state,0x72,buf[2]);
331 	while ((cx24110_readreg(state,0x6d)&0xc0)==0x80)
335 	cx24110_writereg(state,0x6d,0x32);
336 	cx24110_writereg(state,0x6d,0x30);
343 	struct cx24110_state *state = fe->demodulator_priv;
350 		cx24110_writereg(state, cx24110_regdata[i].reg, cx24110_regdata[i].data);
359 	struct cx24110_state *state = fe->demodulator_priv;
363 		return cx24110_writereg(state,0x76,(cx24110_readreg(state,0x76)&0x3b)|0xc0);
365 		return cx24110_writereg(state,0x76,(cx24110_readreg(state,0x76)&0x3b)|0x40);
375 	struct cx24110_state *state = fe->demodulator_priv;
385 	rv = cx24110_readreg(state, 0x77);
387 		cx24110_writereg(state, 0x77, rv | 0x04);
389 	rv = cx24110_readreg(state, 0x76);
390 	cx24110_writereg(state, 0x76, ((rv & 0x90) | 0x40 | bit));
392 	while (!time_after(jiffies, timeout) && !(cx24110_readreg(state, 0x76) & 0x40))
402 	struct cx24110_state *state = fe->demodulator_priv;
409 		cx24110_writereg(state, 0x79 + i, cmd->msg[i]);
411 	rv = cx24110_readreg(state, 0x77);
413 		cx24110_writereg(state, 0x77, rv & ~0x04);
417 	rv = cx24110_readreg(state, 0x76);
419 	cx24110_writereg(state, 0x76, ((rv & 0x90) | 0x40) | ((cmd->msg_len-3) & 3));
421 	while (!time_after(jiffies, timeout) && !(cx24110_readreg(state, 0x76) & 0x40))
430 	struct cx24110_state *state = fe->demodulator_priv;
432 	int sync = cx24110_readreg (state, 0x55);
442 	sync = cx24110_readreg (state, 0x08);
458 	struct cx24110_state *state = fe->demodulator_priv;
461 	if(cx24110_readreg(state,0x24)&0x10) {
463 		cx24110_writereg(state,0x24,0x04); /* select the ber reg */
464 		state->lastber=cx24110_readreg(state,0x25)|
465 			(cx24110_readreg(state,0x26)<<8);
466 		cx24110_writereg(state,0x24,0x04); /* start new count window */
467 		cx24110_writereg(state,0x24,0x14);
469 	*ber = state->lastber;
476 	struct cx24110_state *state = fe->demodulator_priv;
479 	u8 signal = cx24110_readreg (state, 0x27)+128;
487 	struct cx24110_state *state = fe->demodulator_priv;
490 	if(cx24110_readreg(state,0x6a)&0x80) {
492 		state->lastesn0=cx24110_readreg(state,0x69)|
493 			(cx24110_readreg(state,0x68)<<8);
494 		cx24110_writereg(state,0x6a,0x84); /* start new count window */
496 	*snr = state->lastesn0;
503 	struct cx24110_state *state = fe->demodulator_priv;
505 	if(cx24110_readreg(state,0x10)&0x40) {
507 		cx24110_writereg(state,0x10,0x60); /* select the byer reg */
508 		(void)(cx24110_readreg(state, 0x12) |
509 			(cx24110_readreg(state, 0x13) << 8) |
510 			(cx24110_readreg(state, 0x14) << 16));
511 		cx24110_writereg(state,0x10,0x70); /* select the bler reg */
512 		state->lastbler=cx24110_readreg(state,0x12)|
513 			(cx24110_readreg(state,0x13)<<8)|
514 			(cx24110_readreg(state,0x14)<<16);
515 		cx24110_writereg(state,0x10,0x20); /* start new count window */
517 	*ucblocks = state->lastbler;
524 	struct cx24110_state *state = fe->demodulator_priv;
532 	cx24110_set_inversion(state, p->inversion);
533 	cx24110_set_fec(state, p->fec_inner);
534 	cx24110_set_symbolrate(state, p->symbol_rate);
535 	cx24110_writereg(state,0x04,0x05); /* start acquisition */
543 	struct cx24110_state *state = fe->demodulator_priv;
548 	sclk = cx24110_readreg (state, 0x07) & 0x03;
556 	afc = sclk*(cx24110_readreg (state, 0x44)&0x1f)+
557 	      ((sclk*cx24110_readreg (state, 0x45))>>8)+
558 	      ((sclk*cx24110_readreg (state, 0x46))>>16);
561 	p->inversion = (cx24110_readreg (state, 0x22) & 0x10) ?
563 	p->fec_inner = cx24110_get_fec(state);
571 	struct cx24110_state *state = fe->demodulator_priv;
573 	return cx24110_writereg(state,0x76,(cx24110_readreg(state,0x76)&~0x10)|(((tone==SEC_TONE_ON))?0x10:0));
578 	struct cx24110_state* state = fe->demodulator_priv;
579 	kfree(state);
587 	struct cx24110_state* state = NULL;
590 	/* allocate memory for the internal state */
591 	state = kzalloc(sizeof(struct cx24110_state), GFP_KERNEL);
592 	if (state == NULL) goto error;
594 	/* setup the state */
595 	state->config = config;
596 	state->i2c = i2c;
597 	state->lastber = 0;
598 	state->lastbler = 0;
599 	state->lastesn0 = 0;
602 	ret = cx24110_readreg(state, 0x00);
606 	memcpy(&state->frontend.ops, &cx24110_ops, sizeof(struct dvb_frontend_ops));
607 	state->frontend.demodulator_priv = state;
608 	return &state->frontend;
611 	kfree(state);