39 static int stv0297_writereg(struct stv0297_state *state, u8 reg, u8 data)  in stv0297_writereg()  argument
43 	struct i2c_msg msg = {.addr = state->config->demod_address,.flags = 0,.buf = buf,.len = 2 };  in stv0297_writereg()
45 	ret = i2c_transfer(state->i2c, &msg, 1);  in stv0297_writereg()
54 static int stv0297_readreg(struct stv0297_state *state, u8 reg)  in stv0297_readreg()  argument
59 	struct i2c_msg msg[] = { {.addr = state->config->demod_address,.flags = 0,.buf = b0,.len = 1},  in stv0297_readreg()
60 				 {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = b1,.len = 1}  in stv0297_readreg()
64 	if (state->config->stop_during_read) {  in stv0297_readreg()
65 		if ((ret = i2c_transfer(state->i2c, &msg[0], 1)) != 1) {  in stv0297_readreg()
69 		if ((ret = i2c_transfer(state->i2c, &msg[1], 1)) != 1) {  in stv0297_readreg()
74 		if ((ret = i2c_transfer(state->i2c, msg, 2)) != 2) {  in stv0297_readreg()
83 static int stv0297_writereg_mask(struct stv0297_state *state, u8 reg, u8 mask, u8 data)  in stv0297_writereg_mask()  argument
87 	val = stv0297_readreg(state, reg);  in stv0297_writereg_mask()
90 	stv0297_writereg(state, reg, val);  in stv0297_writereg_mask()
95 static int stv0297_readregs(struct stv0297_state *state, u8 reg1, u8 * b, u8 len)  in stv0297_readregs()  argument
98 	struct i2c_msg msg[] = { {.addr = state->config->demod_address,.flags = 0,.buf =  in stv0297_readregs()
100 	{.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = b,.len = len}  in stv0297_readregs()
104 	if (state->config->stop_during_read) {  in stv0297_readregs()
105 		if ((ret = i2c_transfer(state->i2c, &msg[0], 1)) != 1) {  in stv0297_readregs()
109 		if ((ret = i2c_transfer(state->i2c, &msg[1], 1)) != 1) {  in stv0297_readregs()
114 		if ((ret = i2c_transfer(state->i2c, msg, 2)) != 2) {  in stv0297_readregs()
123 static u32 stv0297_get_symbolrate(struct stv0297_state *state)  in stv0297_get_symbolrate()  argument
127 	tmp = (u64)(stv0297_readreg(state, 0x55)  in stv0297_get_symbolrate()
128 		    | (stv0297_readreg(state, 0x56) << 8)  in stv0297_get_symbolrate()
129 		    | (stv0297_readreg(state, 0x57) << 16)  in stv0297_get_symbolrate()
130 		    | (stv0297_readreg(state, 0x58) << 24));  in stv0297_get_symbolrate()
138 static void stv0297_set_symbolrate(struct stv0297_state *state, u32 srate)  in stv0297_set_symbolrate()  argument
146 	stv0297_writereg(state, 0x55, (unsigned char) (tmp & 0xFF));  in stv0297_set_symbolrate()
147 	stv0297_writereg(state, 0x56, (unsigned char) (tmp >> 8));  in stv0297_set_symbolrate()
148 	stv0297_writereg(state, 0x57, (unsigned char) (tmp >> 16));  in stv0297_set_symbolrate()
149 	stv0297_writereg(state, 0x58, (unsigned char) (tmp >> 24));  in stv0297_set_symbolrate()
152 static void stv0297_set_sweeprate(struct stv0297_state *state, short fshift, long symrate)  in stv0297_set_sweeprate()  argument
168 	stv0297_writereg(state, 0x60, tmp & 0xFF);  in stv0297_set_sweeprate()
169 	stv0297_writereg_mask(state, 0x69, 0xF0, (tmp >> 4) & 0xf0);  in stv0297_set_sweeprate()
172 static void stv0297_set_carrieroffset(struct stv0297_state *state, long offset)  in stv0297_set_carrieroffset()  argument
182 	stv0297_writereg(state, 0x66, (unsigned char) (tmp & 0xFF));  in stv0297_set_carrieroffset()
183 	stv0297_writereg(state, 0x67, (unsigned char) (tmp >> 8));  in stv0297_set_carrieroffset()
184 	stv0297_writereg(state, 0x68, (unsigned char) (tmp >> 16));  in stv0297_set_carrieroffset()
185 	stv0297_writereg_mask(state, 0x69, 0x0F, (tmp >> 24) & 0x0f);  in stv0297_set_carrieroffset()
207 static void stv0297_set_initialdemodfreq(struct stv0297_state *state, long freq)  in stv0297_set_initialdemodfreq()  argument
219 	stv0297_writereg_mask(state, 0x25, 0x80, 0x80);  in stv0297_set_initialdemodfreq()
220 	stv0297_writereg(state, 0x21, tmp >> 8);  in stv0297_set_initialdemodfreq()
221 	stv0297_writereg(state, 0x20, tmp);  in stv0297_set_initialdemodfreq()
224 static int stv0297_set_qam(struct stv0297_state *state,  in stv0297_set_qam()  argument
254 	stv0297_writereg_mask(state, 0x00, 0x70, val << 4);  in stv0297_set_qam()
259 static int stv0297_set_inversion(struct stv0297_state *state,  in stv0297_set_inversion()  argument
277 	stv0297_writereg_mask(state, 0x83, 0x08, val << 3);  in stv0297_set_inversion()
284 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_i2c_gate_ctrl()  local
287 		stv0297_writereg(state, 0x87, 0x78);  in stv0297_i2c_gate_ctrl()
288 		stv0297_writereg(state, 0x86, 0xc8);  in stv0297_i2c_gate_ctrl()
296 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_init()  local
300 	for (i=0; !(state->config->inittab[i] == 0xff && state->config->inittab[i+1] == 0xff); i+=2)  in stv0297_init()
301 		stv0297_writereg(state, state->config->inittab[i], state->config->inittab[i+1]);  in stv0297_init()
304 	state->last_ber = 0;  in stv0297_init()
311 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_sleep()  local
313 	stv0297_writereg_mask(state, 0x80, 1, 1);  in stv0297_sleep()
321 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_read_status()  local
323 	u8 sync = stv0297_readreg(state, 0xDF);  in stv0297_read_status()
334 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_read_ber()  local
337 	stv0297_readregs(state, 0xA0, BER, 3);  in stv0297_read_ber()
339 		state->last_ber = BER[2] << 8 | BER[1];  in stv0297_read_ber()
340 		stv0297_writereg_mask(state, 0xA0, 0x80, 0x80);  in stv0297_read_ber()
343 	*ber = state->last_ber;  in stv0297_read_ber()
351 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_read_signal_strength()  local
355 	stv0297_readregs(state, 0x41, STRENGTH, 3);  in stv0297_read_signal_strength()
374 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_read_snr()  local
377 	stv0297_readregs(state, 0x07, SNR, 2);  in stv0297_read_snr()
385 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_read_ucblocks()  local
387 	stv0297_writereg_mask(state, 0xDF, 0x03, 0x03); /* freeze the counters */  in stv0297_read_ucblocks()
389 	*ucblocks = (stv0297_readreg(state, 0xD5) << 8)  in stv0297_read_ucblocks()
390 		| stv0297_readreg(state, 0xD4);  in stv0297_read_ucblocks()
392 	stv0297_writereg_mask(state, 0xDF, 0x03, 0x02); /* clear the counters */  in stv0297_read_ucblocks()
393 	stv0297_writereg_mask(state, 0xDF, 0x03, 0x01); /* re-enable the counters */  in stv0297_read_ucblocks()
401 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_set_frontend()  local
431 	if (state->config->invert)  in stv0297_set_frontend()
454 	stv0297_writereg(state, 0x82, 0x0);  in stv0297_set_frontend()
457 	stv0297_set_initialdemodfreq(state, 7250);  in stv0297_set_frontend()
460 	stv0297_writereg_mask(state, 0x43, 0x10, 0x00);  in stv0297_set_frontend()
461 	stv0297_writereg(state, 0x41, 0x00);  in stv0297_set_frontend()
462 	stv0297_writereg_mask(state, 0x42, 0x03, 0x01);  in stv0297_set_frontend()
463 	stv0297_writereg_mask(state, 0x36, 0x60, 0x00);  in stv0297_set_frontend()
464 	stv0297_writereg_mask(state, 0x36, 0x18, 0x00);  in stv0297_set_frontend()
465 	stv0297_writereg_mask(state, 0x71, 0x80, 0x80);  in stv0297_set_frontend()
466 	stv0297_writereg(state, 0x72, 0x00);  in stv0297_set_frontend()
467 	stv0297_writereg(state, 0x73, 0x00);  in stv0297_set_frontend()
468 	stv0297_writereg_mask(state, 0x74, 0x0F, 0x00);  in stv0297_set_frontend()
469 	stv0297_writereg_mask(state, 0x43, 0x08, 0x00);  in stv0297_set_frontend()
470 	stv0297_writereg_mask(state, 0x71, 0x80, 0x00);  in stv0297_set_frontend()
473 	stv0297_writereg_mask(state, 0x5a, 0x20, 0x20);  in stv0297_set_frontend()
474 	stv0297_writereg_mask(state, 0x5b, 0x02, 0x02);  in stv0297_set_frontend()
475 	stv0297_writereg_mask(state, 0x5b, 0x02, 0x00);  in stv0297_set_frontend()
476 	stv0297_writereg_mask(state, 0x5b, 0x01, 0x00);  in stv0297_set_frontend()
477 	stv0297_writereg_mask(state, 0x5a, 0x40, 0x40);  in stv0297_set_frontend()
480 	stv0297_writereg_mask(state, 0x6a, 0x01, 0x00);  in stv0297_set_frontend()
483 	stv0297_writereg_mask(state, 0x81, 0x01, 0x01);  in stv0297_set_frontend()
484 	stv0297_writereg_mask(state, 0x81, 0x01, 0x00);  in stv0297_set_frontend()
487 	stv0297_writereg_mask(state, 0x83, 0x20, 0x20);  in stv0297_set_frontend()
488 	stv0297_writereg_mask(state, 0x83, 0x20, 0x00);  in stv0297_set_frontend()
491 	u_threshold = stv0297_readreg(state, 0x00) & 0xf;  in stv0297_set_frontend()
492 	initial_u = stv0297_readreg(state, 0x01) >> 4;  in stv0297_set_frontend()
493 	blind_u = stv0297_readreg(state, 0x01) & 0xf;  in stv0297_set_frontend()
494 	stv0297_writereg_mask(state, 0x84, 0x01, 0x01);  in stv0297_set_frontend()
495 	stv0297_writereg_mask(state, 0x84, 0x01, 0x00);  in stv0297_set_frontend()
496 	stv0297_writereg_mask(state, 0x00, 0x0f, u_threshold);  in stv0297_set_frontend()
497 	stv0297_writereg_mask(state, 0x01, 0xf0, initial_u << 4);  in stv0297_set_frontend()
498 	stv0297_writereg_mask(state, 0x01, 0x0f, blind_u);  in stv0297_set_frontend()
501 	stv0297_writereg_mask(state, 0x87, 0x80, 0x00);  in stv0297_set_frontend()
504 	stv0297_writereg(state, 0x63, 0x00);  in stv0297_set_frontend()
505 	stv0297_writereg(state, 0x64, 0x00);  in stv0297_set_frontend()
506 	stv0297_writereg(state, 0x65, 0x00);  in stv0297_set_frontend()
507 	stv0297_writereg(state, 0x66, 0x00);  in stv0297_set_frontend()
508 	stv0297_writereg(state, 0x67, 0x00);  in stv0297_set_frontend()
509 	stv0297_writereg(state, 0x68, 0x00);  in stv0297_set_frontend()
510 	stv0297_writereg_mask(state, 0x69, 0x0f, 0x00);  in stv0297_set_frontend()
513 	stv0297_set_qam(state, p->modulation);  in stv0297_set_frontend()
514 	stv0297_set_symbolrate(state, p->symbol_rate / 1000);  in stv0297_set_frontend()
515 	stv0297_set_sweeprate(state, sweeprate, p->symbol_rate / 1000);  in stv0297_set_frontend()
516 	stv0297_set_carrieroffset(state, carrieroffset);  in stv0297_set_frontend()
517 	stv0297_set_inversion(state, inversion);  in stv0297_set_frontend()
523 		stv0297_writereg_mask(state, 0x88, 0x08, 0x00);  in stv0297_set_frontend()
525 		stv0297_writereg_mask(state, 0x88, 0x08, 0x08);  in stv0297_set_frontend()
527 	stv0297_writereg_mask(state, 0x5a, 0x20, 0x00);  in stv0297_set_frontend()
528 	stv0297_writereg_mask(state, 0x6a, 0x01, 0x01);  in stv0297_set_frontend()
529 	stv0297_writereg_mask(state, 0x43, 0x40, 0x40);  in stv0297_set_frontend()
530 	stv0297_writereg_mask(state, 0x5b, 0x30, 0x00);  in stv0297_set_frontend()
531 	stv0297_writereg_mask(state, 0x03, 0x0c, 0x0c);  in stv0297_set_frontend()
532 	stv0297_writereg_mask(state, 0x03, 0x03, 0x03);  in stv0297_set_frontend()
533 	stv0297_writereg_mask(state, 0x43, 0x10, 0x10);  in stv0297_set_frontend()
539 		if (stv0297_readreg(state, 0x43) & 0x08)  in stv0297_set_frontend()
552 		if (stv0297_readreg(state, 0x82) & 0x04) {  in stv0297_set_frontend()
565 		if (stv0297_readreg(state, 0x82) & 0x08) {  in stv0297_set_frontend()
574 	stv0297_writereg_mask(state, 0x6a, 1, 0);  in stv0297_set_frontend()
575 	stv0297_writereg_mask(state, 0x88, 8, 0);  in stv0297_set_frontend()
582 		if (stv0297_readreg(state, 0xDF) & 0x80) {  in stv0297_set_frontend()
592 	if (!(stv0297_readreg(state, 0xDF) & 0x80)) {  in stv0297_set_frontend()
597 	stv0297_writereg_mask(state, 0x5a, 0x40, 0x00);  in stv0297_set_frontend()
598 	state->base_freq = p->frequency;  in stv0297_set_frontend()
602 	stv0297_writereg_mask(state, 0x6a, 0x01, 0x00);  in stv0297_set_frontend()
609 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_get_frontend()  local
612 	reg_00 = stv0297_readreg(state, 0x00);  in stv0297_get_frontend()
613 	reg_83 = stv0297_readreg(state, 0x83);  in stv0297_get_frontend()
615 	p->frequency = state->base_freq;  in stv0297_get_frontend()
617 	if (state->config->invert)  in stv0297_get_frontend()
619 	p->symbol_rate = stv0297_get_symbolrate(state) * 1000;  in stv0297_get_frontend()
645 	struct stv0297_state *state = fe->demodulator_priv;  in stv0297_release()  local
646 	kfree(state);  in stv0297_release()
654 	struct stv0297_state *state = NULL;  in stv0297_attach()  local
657 	state = kzalloc(sizeof(struct stv0297_state), GFP_KERNEL);  in stv0297_attach()
658 	if (state == NULL)  in stv0297_attach()
662 	state->config = config;  in stv0297_attach()
663 	state->i2c = i2c;  in stv0297_attach()
664 	state->last_ber = 0;  in stv0297_attach()
665 	state->base_freq = 0;  in stv0297_attach()
668 	if ((stv0297_readreg(state, 0x80) & 0x70) != 0x20)  in stv0297_attach()
672 	memcpy(&state->frontend.ops, &stv0297_ops, sizeof(struct dvb_frontend_ops));  in stv0297_attach()
673 	state->frontend.demodulator_priv = state;  in stv0297_attach()
674 	return &state->frontend;  in stv0297_attach()
677 	kfree(state);  in stv0297_attach()