1 // SPDX-License-Identifier: GPL-2.0-or-later
74 	[STB6100_VCO]		= "VCO",
125 		.addr	= state->config->tuner_address,  in stb6100_read_regs()
131 	rc = i2c_transfer(state->i2c, &msg, 1);  in stb6100_read_regs()
134 			state->config->tuner_address, rc);  in stb6100_read_regs()
136 		return -EREMOTEIO;  in stb6100_read_regs()
141 		dprintk(verbose, FE_DEBUG, 1, "    Read from 0x%02x", state->config->tuner_address);  in stb6100_read_regs()
153 		.addr	= state->config->tuner_address + reg,  in stb6100_read_reg()
159 	i2c_transfer(state->i2c, &msg, 1);  in stb6100_read_reg()
163 		return -EINVAL;  in stb6100_read_reg()
166 		dprintk(verbose, FE_DEBUG, 1, "    Read from 0x%02x", state->config->tuner_address);  in stb6100_read_reg()
178 		.addr	= state->config->tuner_address,  in stb6100_write_reg_range()
188 		return -EINVAL;  in stb6100_write_reg_range()
194 		return -EINVAL;  in stb6100_write_reg_range()
202 …dprintk(verbose, FE_DEBUG, 1, "    Write @ 0x%02x: [%d:%d]", state->config->tuner_address, start, …  in stb6100_write_reg_range()
206 	rc = i2c_transfer(state->i2c, &msg, 1);  in stb6100_write_reg_range()
209 			(unsigned int)state->config->tuner_address, start, len,	rc);  in stb6100_write_reg_range()
210 		return -EREMOTEIO;  in stb6100_write_reg_range()
221 		return -EREMOTEIO;  in stb6100_write_reg()
231 	struct stb6100_state *state = fe->tuner_priv;  in stb6100_get_status()
246 	struct stb6100_state *state = fe->tuner_priv;  in stb6100_get_bandwidth()
255 	*bandwidth = state->bandwidth = bw * 1000;  in stb6100_get_bandwidth()
256 	dprintk(verbose, FE_DEBUG, 1, "bandwidth = %u Hz", state->bandwidth);  in stb6100_get_bandwidth()
264 	struct stb6100_state *state = fe->tuner_priv;  in stb6100_set_bandwidth()
266 	dprintk(verbose, FE_DEBUG, 1, "set bandwidth to %u Hz", bandwidth);  in stb6100_set_bandwidth()
275 		tmp = (bandwidth + 500000) / 1000000 - 5;  in stb6100_set_bandwidth()
303 	struct stb6100_state *state = fe->tuner_priv;  in stb6100_get_frequency()
314 	fvco = (nfrac * state->reference >> (9 - psd2)) + (nint * state->reference << psd2);  in stb6100_get_frequency()
315 	*frequency = state->frequency = fvco >> (odiv + 1);  in stb6100_get_frequency()
319 		state->frequency, odiv, psd2, state->reference,	fvco, nint, nfrac);  in stb6100_get_frequency()
328 	struct stb6100_state *state = fe->tuner_priv;  in stb6100_set_frequency()
329 	struct dtv_frontend_properties *p = &fe->dtv_property_cache;  in stb6100_set_frequency()
335 	dprintk(verbose, FE_DEBUG, 1, "Version 2010-8-14 13:51");  in stb6100_set_frequency()
337 	if (fe->ops.get_frontend) {  in stb6100_set_frequency()
339 		fe->ops.get_frontend(fe, p);  in stb6100_set_frequency()
341 	srate = p->symbol_rate;  in stb6100_set_frequency()
348 	/* PLL Loop disabled, bias on, VCO on, synth on */  in stb6100_set_frequency()
356 	/* VCO divide ratio (LO divide ratio, VCO prescaler enable).	*/  in stb6100_set_frequency()
362 	/* VCO enabled, search clock off as per LL3.7, 3.4.1 */  in stb6100_set_frequency()
367 	     (ptr->val_high != 0) && !CHKRANGE(frequency, ptr->val_low, ptr->val_high);  in stb6100_set_frequency()
370 	if (ptr->val_high == 0) {  in stb6100_set_frequency()
372 		return -EINVAL;  in stb6100_set_frequency()
374 	regs[STB6100_VCO] = (regs[STB6100_VCO] & ~STB6100_VCO_OSM) | ptr->reg;  in stb6100_set_frequency()
383 	/* F(VCO) = F(LO) * (ODIV == 0 ? 2 : 4)			*/  in stb6100_set_frequency()
385 	/* N(I) = floor(f(VCO) / (f(XTAL) * (PSD2 ? 2 : 1)))	*/  in stb6100_set_frequency()
386 	nint = fvco / (state->reference << psd2);  in stb6100_set_frequency()
387 	/* N(F) = round(f(VCO) / f(XTAL) * (PSD2 ? 2 : 1) - N(I)) * 2 ^ 9	*/  in stb6100_set_frequency()
388 	nfrac = DIV_ROUND_CLOSEST((fvco - (nint * state->reference << psd2))  in stb6100_set_frequency()
389 					 << (9 - psd2), state->reference);  in stb6100_set_frequency()
420 	regs[STB6100_G] |= (1 << 5); /* 2Vp-p Mode */  in stb6100_set_frequency()
427 	/* DLB set DC servo loop BW to 160Hz (LLA 3.8 / 2.1) */  in stb6100_set_frequency()
436 		(unsigned int)psd2, state->reference,  in stb6100_set_frequency()
437 		ptr->reg, fvco, nint, nfrac);  in stb6100_set_frequency()
450 	regs[STB6100_LPEN] = 0xfb; /* PLL Loop enabled, bias on, VCO on, synth on */  in stb6100_set_frequency()
458 	regs[STB6100_VCO] &= ~STB6100_VCO_OCK;		/* VCO fast search		*/  in stb6100_set_frequency()
465 	regs[STB6100_VCO] &= ~STB6100_VCO_OSCH;		/* vco search disabled		*/  in stb6100_set_frequency()
488 	struct stb6100_state *state = fe->tuner_priv;  in stb6100_init()
489 	int refclk = 27000000; /* Hz */  in stb6100_init()
495 	state->bandwidth        = 36000000;		/* Hz	*/  in stb6100_init()
496 	state->reference	= refclk / 1000;	/* kHz	*/  in stb6100_init()
498 	/* Set default bandwidth. Modified, PN 13-May-10	*/  in stb6100_init()
504 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;  in stb6100_set_params()
506 	if (c->frequency > 0)  in stb6100_set_params()
507 		stb6100_set_frequency(fe, c->frequency);  in stb6100_set_params()
509 	if (c->bandwidth_hz > 0)  in stb6100_set_params()
510 		stb6100_set_bandwidth(fe, c->bandwidth_hz);  in stb6100_set_params()
541 	state->config		= config;  in stb6100_attach()
542 	state->i2c		= i2c;  in stb6100_attach()
543 	state->frontend		= fe;  in stb6100_attach()
544 	state->reference	= config->refclock / 1000; /* kHz */  in stb6100_attach()
545 	fe->tuner_priv		= state;  in stb6100_attach()
546 	fe->ops.tuner_ops	= stb6100_ops;  in stb6100_attach()
554 	struct stb6100_state *state = fe->tuner_priv;  in stb6100_release()
556 	fe->tuner_priv = NULL;  in stb6100_release()