1 // SPDX-License-Identifier: GPL-2.0-or-later
20 #include "tuner-i2c.h"
38 	msg.addr = priv->config->i2c_address;  in max2165_write_reg()
43 	ret = i2c_transfer(priv->i2c, &msg, 1);  in max2165_write_reg()
49 	return (ret != 1) ? -EIO : 0;  in max2165_write_reg()
55 	u8 dev_addr = priv->config->i2c_address;  in max2165_read_reg()
64 	ret = i2c_transfer(priv->i2c, msg, 2);  in max2165_read_reg()
67 		return -EIO;  in max2165_read_reg()
104 	priv->tf_ntch_low_cfg = dat[0] >> 4;  in max2165_read_rom_table()
105 	priv->tf_ntch_hi_cfg = dat[0] & 0x0F;  in max2165_read_rom_table()
106 	priv->tf_balun_low_ref = dat[1] & 0x0F;  in max2165_read_rom_table()
107 	priv->tf_balun_hi_ref = dat[1] >> 4;  in max2165_read_rom_table()
108 	priv->bb_filter_7mhz_cfg = dat[2] & 0x0F;  in max2165_read_rom_table()
109 	priv->bb_filter_8mhz_cfg = dat[2] >> 4;  in max2165_read_rom_table()
111 	dprintk("tf_ntch_low_cfg = 0x%X\n", priv->tf_ntch_low_cfg);  in max2165_read_rom_table()
112 	dprintk("tf_ntch_hi_cfg = 0x%X\n", priv->tf_ntch_hi_cfg);  in max2165_read_rom_table()
113 	dprintk("tf_balun_low_ref = 0x%X\n", priv->tf_balun_low_ref);  in max2165_read_rom_table()
114 	dprintk("tf_balun_hi_ref = 0x%X\n", priv->tf_balun_hi_ref);  in max2165_read_rom_table()
115 	dprintk("bb_filter_7mhz_cfg = 0x%X\n", priv->bb_filter_7mhz_cfg);  in max2165_read_rom_table()
116 	dprintk("bb_filter_8mhz_cfg = 0x%X\n", priv->bb_filter_8mhz_cfg);  in max2165_read_rom_table()
129 		v -= 8;  in max2165_set_osc()
141 		val = priv->bb_filter_8mhz_cfg;  in max2165_set_bandwidth()
143 		val = priv->bb_filter_7mhz_cfg;  in max2165_set_bandwidth()
157 		return -EINVAL;  in fixpt_div32()
160 	remainder = dividend - q * divisor;  in fixpt_div32()
166 			remainder -= divisor;  in fixpt_div32()
186 	ret = fixpt_div32(freq / 1000, priv->config->osc_clk * 1000,  in max2165_set_rf()
191 	/* 20-bit fraction */  in max2165_set_rf()
201 		priv->tf_ntch_low_cfg : priv->tf_ntch_hi_cfg;  in max2165_set_rf()
204 	t = priv->tf_balun_low_ref;  in max2165_set_rf()
205 	t += (priv->tf_balun_hi_ref - priv->tf_balun_low_ref)  in max2165_set_rf()
206 		* (freq / 1000 - 470000) / (780000 - 470000);  in max2165_set_rf()
224 	u8 vco, vco_sub_band, adc;  in max2165_debug_status()  local
236 	vco = autotune >> 6;  in max2165_debug_status()
240 	dprintk("auto VCO active: %d, auto VCO success: %d\n",  in max2165_debug_status()
246 	dprintk("VCO: %d, VCO Sub-band: %d, ADC: %d\n", vco, vco_sub_band, adc);  in max2165_debug_status()
251 	struct max2165_priv *priv = fe->tuner_priv;  in max2165_set_params()
252 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;  in max2165_set_params()
255 	switch (c->bandwidth_hz) {  in max2165_set_params()
258 		priv->frequency = c->frequency;  in max2165_set_params()
261 		printk(KERN_INFO "MAX2165: bandwidth %d Hz not supported.\n",  in max2165_set_params()
262 		       c->bandwidth_hz);  in max2165_set_params()
263 		return -EINVAL;  in max2165_set_params()
266 	dprintk("%s() frequency=%d\n", __func__, c->frequency);  in max2165_set_params()
268 	if (fe->ops.i2c_gate_ctrl)  in max2165_set_params()
269 		fe->ops.i2c_gate_ctrl(fe, 1);  in max2165_set_params()
270 	max2165_set_bandwidth(priv, c->bandwidth_hz);  in max2165_set_params()
271 	ret = max2165_set_rf(priv, priv->frequency);  in max2165_set_params()
274 	if (fe->ops.i2c_gate_ctrl)  in max2165_set_params()
275 		fe->ops.i2c_gate_ctrl(fe, 0);  in max2165_set_params()
278 		return -EREMOTEIO;  in max2165_set_params()
285 	struct max2165_priv *priv = fe->tuner_priv;  in max2165_get_frequency()
287 	*freq = priv->frequency;  in max2165_get_frequency()
293 	struct max2165_priv *priv = fe->tuner_priv;  in max2165_get_bandwidth()
296 	*bw = priv->bandwidth;  in max2165_get_bandwidth()
302 	struct max2165_priv *priv = fe->tuner_priv;  in max2165_get_status()
307 	if (fe->ops.i2c_gate_ctrl)  in max2165_get_status()
308 			fe->ops.i2c_gate_ctrl(fe, 1);  in max2165_get_status()
313 	if (fe->ops.i2c_gate_ctrl)  in max2165_get_status()
314 			fe->ops.i2c_gate_ctrl(fe, 0);  in max2165_get_status()
327 	struct max2165_priv *priv = fe->tuner_priv;  in max2165_init()
330 	if (fe->ops.i2c_gate_ctrl)  in max2165_init()
331 		fe->ops.i2c_gate_ctrl(fe, 1);  in max2165_init()
347 	max2165_set_osc(priv, priv->config->osc_clk);  in max2165_init()
353 	if (fe->ops.i2c_gate_ctrl)  in max2165_init()
354 			fe->ops.i2c_gate_ctrl(fe, 0);  in max2165_init()
361 	struct max2165_priv *priv = fe->tuner_priv;  in max2165_release()
365 	fe->tuner_priv = NULL;  in max2165_release()
393 	dprintk("%s(%d-%04x)\n", __func__,  in max2165_attach()
394 		i2c ? i2c_adapter_id(i2c) : -1,  in max2165_attach()
395 		cfg ? cfg->i2c_address : -1);  in max2165_attach()
401 	memcpy(&fe->ops.tuner_ops, &max2165_tuner_ops,  in max2165_attach()
404 	priv->config = cfg;  in max2165_attach()
405 	priv->i2c = i2c;  in max2165_attach()
406 	fe->tuner_priv = priv;  in max2165_attach()