1 // SPDX-License-Identifier: GPL-2.0-or-later
10 /* Max transfer size done by I2C transfer functions */
20 			.addr = priv->cfg->i2c_address,  in tda18218_wr_regs()
27 		dev_warn(&priv->i2c->dev,  in tda18218_wr_regs()
28 			 "%s: i2c wr reg=%04x: len=%d is too big!\n",  in tda18218_wr_regs()
30 		return -EINVAL;  in tda18218_wr_regs()
34 			remaining -= (priv->cfg->i2c_wr_max - 1)) {  in tda18218_wr_regs()
36 		if (len2 > (priv->cfg->i2c_wr_max - 1))  in tda18218_wr_regs()
37 			len2 = (priv->cfg->i2c_wr_max - 1);  in tda18218_wr_regs()
40 		buf[0] = reg + len - remaining;  in tda18218_wr_regs()
41 		memcpy(&buf[1], &val[len - remaining], len2);  in tda18218_wr_regs()
43 		ret = i2c_transfer(priv->i2c, msg, 1);  in tda18218_wr_regs()
51 		dev_warn(&priv->i2c->dev, "%s: i2c wr failed=%d reg=%02x " \  in tda18218_wr_regs()
53 		ret = -EREMOTEIO;  in tda18218_wr_regs()
66 			.addr = priv->cfg->i2c_address,  in tda18218_rd_regs()
71 			.addr = priv->cfg->i2c_address,  in tda18218_rd_regs()
79 		dev_warn(&priv->i2c->dev,  in tda18218_rd_regs()
80 			 "%s: i2c wr reg=%04x: len=%d is too big!\n",  in tda18218_rd_regs()
82 		return -EINVAL;  in tda18218_rd_regs()
85 	ret = i2c_transfer(priv->i2c, msg, 2);  in tda18218_rd_regs()
90 		dev_warn(&priv->i2c->dev, "%s: i2c rd failed=%d reg=%02x " \  in tda18218_rd_regs()
92 		ret = -EREMOTEIO;  in tda18218_rd_regs()
113 	struct tda18218_priv *priv = fe->tuner_priv;  in tda18218_set_params()
114 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;  in tda18218_set_params()
115 	u32 bw = c->bandwidth_hz;  in tda18218_set_params()
137 	if (fe->ops.i2c_gate_ctrl)  in tda18218_set_params()
138 		fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */  in tda18218_set_params()
140 	/* low-pass filter cut-off frequency */  in tda18218_set_params()
143 		priv->if_frequency = 3000000;  in tda18218_set_params()
146 		priv->if_frequency = 3500000;  in tda18218_set_params()
149 		priv->if_frequency = 4000000;  in tda18218_set_params()
152 	LO_Frac = c->frequency + priv->if_frequency;  in tda18218_set_params()
154 	/* band-pass filter */  in tda18218_set_params()
164 	buf[0] = (priv->regs[R1A_IF1] & ~7) | BP_Filter; /* BP_Filter */  in tda18218_set_params()
165 	buf[1] = (priv->regs[R1B_IF2] & ~3) | LP_Fc; /* LP_Fc */  in tda18218_set_params()
166 	buf[2] = priv->regs[R1C_AGC2B];  in tda18218_set_params()
174 		(priv->regs[R0C_MD5] & 0x0f); /* LO_Frac_2 */  in tda18218_set_params()
179 	buf[0] = priv->regs[R0F_MD8] | (1 << 6); /* Freq_prog_Start */  in tda18218_set_params()
184 	buf[0] = priv->regs[R0F_MD8] & ~(1 << 6); /* Freq_prog_Start */  in tda18218_set_params()
197 	if (fe->ops.i2c_gate_ctrl)  in tda18218_set_params()
198 		fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */  in tda18218_set_params()
201 		dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);  in tda18218_set_params()
208 	struct tda18218_priv *priv = fe->tuner_priv;  in tda18218_get_if_frequency()
209 	*frequency = priv->if_frequency;  in tda18218_get_if_frequency()
210 	dev_dbg(&priv->i2c->dev, "%s: if_frequency=%d\n", __func__, *frequency);  in tda18218_get_if_frequency()
216 	struct tda18218_priv *priv = fe->tuner_priv;  in tda18218_sleep()
219 	if (fe->ops.i2c_gate_ctrl)  in tda18218_sleep()
220 		fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */  in tda18218_sleep()
223 	ret = tda18218_wr_reg(priv, R17_PD1, priv->regs[R17_PD1] | (1 << 0));  in tda18218_sleep()
225 	if (fe->ops.i2c_gate_ctrl)  in tda18218_sleep()
226 		fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */  in tda18218_sleep()
229 		dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);  in tda18218_sleep()
236 	struct tda18218_priv *priv = fe->tuner_priv;  in tda18218_init()
241 	if (fe->ops.i2c_gate_ctrl)  in tda18218_init()
242 		fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */  in tda18218_init()
244 	ret = tda18218_wr_regs(priv, R00_ID, priv->regs, TDA18218_NUM_REGS);  in tda18218_init()
246 	if (fe->ops.i2c_gate_ctrl)  in tda18218_init()
247 		fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */  in tda18218_init()
250 		dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);  in tda18218_init()
257 	kfree(fe->tuner_priv);  in tda18218_release()
258 	fe->tuner_priv = NULL;  in tda18218_release()
280 	struct i2c_adapter *i2c, struct tda18218_config *cfg)  in tda18218_attach()  argument
299 	priv->cfg = cfg;  in tda18218_attach()
300 	priv->i2c = i2c;  in tda18218_attach()
301 	fe->tuner_priv = priv;  in tda18218_attach()
303 	if (fe->ops.i2c_gate_ctrl)  in tda18218_attach()
304 		fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */  in tda18218_attach()
309 		dev_dbg(&priv->i2c->dev, "%s: chip id=%02x\n", __func__, val);  in tda18218_attach()
315 	dev_info(&priv->i2c->dev,  in tda18218_attach()
319 	memcpy(&fe->ops.tuner_ops, &tda18218_tuner_ops,  in tda18218_attach()
321 	memcpy(priv->regs, def_regs, sizeof(def_regs));  in tda18218_attach()
323 	/* loop-through enabled chip default register values */  in tda18218_attach()
324 	if (priv->cfg->loop_through) {  in tda18218_attach()
325 		priv->regs[R17_PD1] = 0xb0;  in tda18218_attach()
326 		priv->regs[R18_PD2] = 0x59;  in tda18218_attach()
330 	ret = tda18218_wr_reg(priv, R17_PD1, priv->regs[R17_PD1] | (1 << 0));  in tda18218_attach()
332 		dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);  in tda18218_attach()
334 	if (fe->ops.i2c_gate_ctrl)  in tda18218_attach()
335 		fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */  in tda18218_attach()