1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  Driver for Zarlink ZL10039 DVB-S tuner
5  *  Copyright 2007 Jan D. Louw <jd.louw@mweb.co.za>
64 			.addr = state->i2c_addr,  in zl10039_read()
69 			.addr = state->i2c_addr,  in zl10039_read()
78 	if (i2c_transfer(state->i2c, msg, 2) != 2) {  in zl10039_read()
80 		return -EREMOTEIO;  in zl10039_read()
87 			const enum zl10039_reg_addr reg, const u8 *src,  in zl10039_write()  argument
92 		.addr = state->i2c_addr,  in zl10039_write()
102 		return -EINVAL;  in zl10039_write()
108 	memcpy(&buf[1], src, count);  in zl10039_write()
109 	if (i2c_transfer(state->i2c, &msg, 1) != 1) {  in zl10039_write()
111 		return -EREMOTEIO;  in zl10039_write()
134 	struct zl10039_state *state = fe->tuner_priv;  in zl10039_init()
138 	if (fe->ops.i2c_gate_ctrl)  in zl10039_init()
139 		fe->ops.i2c_gate_ctrl(fe, 1);  in zl10039_init()
151 	if (fe->ops.i2c_gate_ctrl)  in zl10039_init()
152 		fe->ops.i2c_gate_ctrl(fe, 0);  in zl10039_init()
159 	struct zl10039_state *state = fe->tuner_priv;  in zl10039_sleep()
163 	if (fe->ops.i2c_gate_ctrl)  in zl10039_sleep()
164 		fe->ops.i2c_gate_ctrl(fe, 1);  in zl10039_sleep()
170 	if (fe->ops.i2c_gate_ctrl)  in zl10039_sleep()
171 		fe->ops.i2c_gate_ctrl(fe, 0);  in zl10039_sleep()
178 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;  in zl10039_set_params()
179 	struct zl10039_state *state = fe->tuner_priv;  in zl10039_set_params()
188 			c->frequency, c->symbol_rate);  in zl10039_set_params()
192 	div = (c->frequency * 1000) / 126387;  in zl10039_set_params()
193 	fbw = (c->symbol_rate * 27) / 32000;  in zl10039_set_params()
195 	bf = ((fbw * 5088) / 1011100) - 1;  in zl10039_set_params()
211 	if (fe->ops.i2c_gate_ctrl)  in zl10039_set_params()
212 		fe->ops.i2c_gate_ctrl(fe, 1);  in zl10039_set_params()
227 	if (fe->ops.i2c_gate_ctrl)  in zl10039_set_params()
228 		fe->ops.i2c_gate_ctrl(fe, 0);  in zl10039_set_params()
237 	struct zl10039_state *state = fe->tuner_priv;  in zl10039_release()
241 	fe->tuner_priv = NULL;  in zl10039_release()
261 	state->i2c = i2c;  in zl10039_attach()
262 	state->i2c_addr = i2c_addr;  in zl10039_attach()
265 	if (fe->ops.i2c_gate_ctrl)  in zl10039_attach()
266 		fe->ops.i2c_gate_ctrl(fe, 1);  in zl10039_attach()
268 	if (zl10039_readreg(state, GENERAL, &state->id) < 0) {  in zl10039_attach()
270 		if (fe->ops.i2c_gate_ctrl)  in zl10039_attach()
271 			fe->ops.i2c_gate_ctrl(fe, 0);  in zl10039_attach()
275 	if (fe->ops.i2c_gate_ctrl)  in zl10039_attach()
276 		fe->ops.i2c_gate_ctrl(fe, 0);  in zl10039_attach()
278 	state->id = state->id & 0x0f;  in zl10039_attach()
279 	switch (state->id) {  in zl10039_attach()
281 		strscpy(fe->ops.tuner_ops.info.name,  in zl10039_attach()
282 			"Zarlink ZL10039 DVB-S tuner",  in zl10039_attach()
283 			sizeof(fe->ops.tuner_ops.info.name));  in zl10039_attach()
286 		dprintk("Chip ID=%x does not match a known type\n", state->id);  in zl10039_attach()
290 	memcpy(&fe->ops.tuner_ops, &zl10039_ops, sizeof(struct dvb_tuner_ops));  in zl10039_attach()
291 	fe->tuner_priv = state;  in zl10039_attach()
302 MODULE_DESCRIPTION("Zarlink ZL10039 DVB-S tuner driver");
303 MODULE_AUTHOR("Jan D. Louw <jd.louw@mweb.co.za>");