1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  Driver for the Integrant ITD1000 "Zero-IF Tuner IC for Direct Broadcast Satellite"
5  *  Copyright (c) 2007-8 Patrick Boettcher <pb@linuxtv.org>
46 		.addr = state->cfg->i2c_address, .flags = 0, .buf = buf, .len = len+1  in itd1000_write_regs()
51 		       "itd1000: i2c wr reg=%04x: len=%d is too big!\n",  in itd1000_write_regs()
53 		return -EINVAL;  in itd1000_write_regs()
59 	/* itd_dbg("wr %02x: %02x\n", reg, v[0]); */  in itd1000_write_regs()
61 	if (i2c_transfer(state->i2c, &msg, 1) != 1) {  in itd1000_write_regs()
62 		printk(KERN_WARNING "itd1000 I2C write failed\n");  in itd1000_write_regs()
63 		return -EREMOTEIO;  in itd1000_write_regs()
72 		{ .addr = state->cfg->i2c_address, .flags = 0,        .buf = &reg, .len = 1 },  in itd1000_read_reg()
73 		{ .addr = state->cfg->i2c_address, .flags = I2C_M_RD, .buf = &val, .len = 1 },  in itd1000_read_reg()
77 	itd1000_write_regs(state, (reg - 1) & 0xff, &state->shadow[(reg - 1) & 0xff], 1);  in itd1000_read_reg()
79 	if (i2c_transfer(state->i2c, msg, 2) != 2) {  in itd1000_read_reg()
80 		itd_warn("itd1000 I2C read failed\n");  in itd1000_read_reg()
81 		return -EREMOTEIO;  in itd1000_read_reg()
90 	state->shadow[r] = tmp;  in itd1000_write_reg()
125 	itd_dbg("symbol_rate = %d\n", symbol_rate);  in itd1000_set_lpf_bw()
127 	/* not sure what is that ? - starting to download the table */  in itd1000_set_lpf_bw()
132 …itd_dbg("symrate: index: %d pgaext: %x, bbgvmin: %x\n", i, itd1000_lpf_pga[i].pgaext, itd1000_lpf_…  in itd1000_set_lpf_bw()
180 …itd_dbg("VCO: %dkHz: %d -> ADCOUT: %d %02x\n", freq_khz, itd1000_vcorg[i].vcorg, adcout, vco_chp1_…  in itd1000_set_vco()
187 					itd1000_write_reg(state, VCO_CHP1_I2C, vco_chp1_i2c | ((itd1000_vcorg[i].vcorg - 1) << 4));  in itd1000_set_vco()
196 	u8 values[10]; /* RFTR, RFST1 - RFST9 */
221 	/* Compute the factional part times 1000 */  in itd1000_set_lo()
229 	state->frequency = ((plln * 1000) + (pllf * 1000)/1048576) * 2*FREF;  in itd1000_set_lo()
230 …itd_dbg("frequency: %dkHz (wanted) %dkHz (set), PLLF = %d, PLLN = %d\n", freq_khz, state->frequenc…  in itd1000_set_lo()
240 			itd_dbg("fre_values: %d\n", i);  in itd1000_set_lo()
253 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;  in itd1000_set_parameters()
254 	struct itd1000_state *state = fe->tuner_priv;  in itd1000_set_parameters()
257 	itd1000_set_lo(state, c->frequency);  in itd1000_set_parameters()
258 	itd1000_set_lpf_bw(state, c->symbol_rate);  in itd1000_set_parameters()
269 	struct itd1000_state *state = fe->tuner_priv;  in itd1000_get_frequency()
270 	*frequency = state->frequency;  in itd1000_get_frequency()
321 	struct itd1000_state *state = fe->tuner_priv;  in itd1000_init()
340 	kfree(fe->tuner_priv);  in itd1000_release()
341 	fe->tuner_priv = NULL;  in itd1000_release()
372 	state->cfg = cfg;  in itd1000_attach()
373 	state->i2c = i2c;  in itd1000_attach()
380 	itd_info("successfully identified (ID: %d)\n", i);  in itd1000_attach()
382 	memset(state->shadow, 0xff, sizeof(state->shadow));  in itd1000_attach()
384 		state->shadow[i] = itd1000_read_reg(state, i);  in itd1000_attach()
386 	memcpy(&fe->ops.tuner_ops, &itd1000_tuner_ops, sizeof(struct dvb_tuner_ops));  in itd1000_attach()
388 	fe->tuner_priv = state;  in itd1000_attach()