1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ascot2e.c
4 *
5 * Sony Ascot3E DVB-T/T2/C/C2 tuner driver
6 *
7 * Copyright 2012 Sony Corporation
8 * Copyright (C) 2014 NetUP Inc.
9 * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
10 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
11  */
12
13#include <linux/slab.h>
14#include <linux/module.h>
15#include <linux/dvb/frontend.h>
16#include <linux/types.h>
17#include "ascot2e.h"
18#include <media/dvb_frontend.h>
19
20#define MAX_WRITE_REGSIZE 10
21
22enum ascot2e_state {
23	STATE_UNKNOWN,
24	STATE_SLEEP,
25	STATE_ACTIVE
26};
27
28struct ascot2e_priv {
29	u32			frequency;
30	u8			i2c_address;
31	struct i2c_adapter	*i2c;
32	enum ascot2e_state	state;
33	void			*set_tuner_data;
34	int			(*set_tuner)(void *, int);
35};
36
37enum ascot2e_tv_system_t {
38	ASCOT2E_DTV_DVBT_5,
39	ASCOT2E_DTV_DVBT_6,
40	ASCOT2E_DTV_DVBT_7,
41	ASCOT2E_DTV_DVBT_8,
42	ASCOT2E_DTV_DVBT2_1_7,
43	ASCOT2E_DTV_DVBT2_5,
44	ASCOT2E_DTV_DVBT2_6,
45	ASCOT2E_DTV_DVBT2_7,
46	ASCOT2E_DTV_DVBT2_8,
47	ASCOT2E_DTV_DVBC_6,
48	ASCOT2E_DTV_DVBC_8,
49	ASCOT2E_DTV_DVBC2_6,
50	ASCOT2E_DTV_DVBC2_8,
51	ASCOT2E_DTV_UNKNOWN
52};
53
54struct ascot2e_band_sett {
55	u8	if_out_sel;
56	u8	agc_sel;
57	u8	mix_oll;
58	u8	rf_gain;
59	u8	if_bpf_gc;
60	u8	fif_offset;
61	u8	bw_offset;
62	u8	bw;
63	u8	rf_oldet;
64	u8	if_bpf_f0;
65};
66
67#define ASCOT2E_AUTO		0xff
68#define ASCOT2E_OFFSET(ofs)	((u8)(ofs) & 0x1F)
69#define ASCOT2E_BW_6		0x00
70#define ASCOT2E_BW_7		0x01
71#define ASCOT2E_BW_8		0x02
72#define ASCOT2E_BW_1_7		0x03
73
74static struct ascot2e_band_sett ascot2e_sett[] = {
75	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
76	  ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },
77	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
78	  ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },
79	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
80	  ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-4), ASCOT2E_BW_7,  0x0B, 0x00 },
81	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
82	  ASCOT2E_OFFSET(-4), ASCOT2E_OFFSET(-2), ASCOT2E_BW_8,  0x0B, 0x00 },
83	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
84	ASCOT2E_OFFSET(-10), ASCOT2E_OFFSET(-16), ASCOT2E_BW_1_7, 0x0B, 0x00 },
85	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
86	  ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },
87	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
88	  ASCOT2E_OFFSET(-8), ASCOT2E_OFFSET(-6), ASCOT2E_BW_6,  0x0B, 0x00 },
89	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
90	  ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-4), ASCOT2E_BW_7,  0x0B, 0x00 },
91	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x06,
92	  ASCOT2E_OFFSET(-4), ASCOT2E_OFFSET(-2), ASCOT2E_BW_8,  0x0B, 0x00 },
93	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x02, ASCOT2E_AUTO, 0x03,
94	  ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-8), ASCOT2E_BW_6,  0x09, 0x00 },
95	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x02, ASCOT2E_AUTO, 0x03,
96	  ASCOT2E_OFFSET(-2), ASCOT2E_OFFSET(-1), ASCOT2E_BW_8,  0x09, 0x00 },
97	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x01,
98	  ASCOT2E_OFFSET(-6), ASCOT2E_OFFSET(-4), ASCOT2E_BW_6,  0x09, 0x00 },
99	{ ASCOT2E_AUTO, ASCOT2E_AUTO, 0x03, ASCOT2E_AUTO, 0x01,
100	  ASCOT2E_OFFSET(-2), ASCOT2E_OFFSET(2),  ASCOT2E_BW_8,  0x09, 0x00 }
101};
102
103static void ascot2e_i2c_debug(struct ascot2e_priv *priv,
104			      u8 reg, u8 write, const u8 *data, u32 len)
105{
106	dev_dbg(&priv->i2c->dev, "ascot2e: I2C %s reg 0x%02x size %d\n",
107		(write == 0 ? "read" : "write"), reg, len);
108	print_hex_dump_bytes("ascot2e: I2C data: ",
109		DUMP_PREFIX_OFFSET, data, len);
110}
111
112static int ascot2e_write_regs(struct ascot2e_priv *priv,
113			      u8 reg, const u8 *data, u32 len)
114{
115	int ret;
116	u8 buf[MAX_WRITE_REGSIZE + 1];
117	struct i2c_msg msg[1] = {
118		{
119			.addr = priv->i2c_address,
120			.flags = 0,
121			.len = len + 1,
122			.buf = buf,
123		}
124	};
125
126	if (len + 1 > sizeof(buf)) {
127		dev_warn(&priv->i2c->dev,"wr reg=%04x: len=%d is too big!\n",
128			 reg, len + 1);
129		return -E2BIG;
130	}
131
132	ascot2e_i2c_debug(priv, reg, 1, data, len);
133	buf[0] = reg;
134	memcpy(&buf[1], data, len);
135	ret = i2c_transfer(priv->i2c, msg, 1);
136	if (ret >= 0 && ret != 1)
137		ret = -EREMOTEIO;
138	if (ret < 0) {
139		dev_warn(&priv->i2c->dev,
140			"%s: i2c wr failed=%d reg=%02x len=%d\n",
141			KBUILD_MODNAME, ret, reg, len);
142		return ret;
143	}
144	return 0;
145}
146
147static int ascot2e_write_reg(struct ascot2e_priv *priv, u8 reg, u8 val)
148{
149	u8 tmp = val; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
150
151	return ascot2e_write_regs(priv, reg, &tmp, 1);
152}
153
154static int ascot2e_read_regs(struct ascot2e_priv *priv,
155			     u8 reg, u8 *val, u32 len)
156{
157	int ret;
158	struct i2c_msg msg[2] = {
159		{
160			.addr = priv->i2c_address,
161			.flags = 0,
162			.len = 1,
163			.buf = &reg,
164		}, {
165			.addr = priv->i2c_address,
166			.flags = I2C_M_RD,
167			.len = len,
168			.buf = val,
169		}
170	};
171
172	ret = i2c_transfer(priv->i2c, &msg[0], 1);
173	if (ret >= 0 && ret != 1)
174		ret = -EREMOTEIO;
175	if (ret < 0) {
176		dev_warn(&priv->i2c->dev,
177			"%s: I2C rw failed=%d addr=%02x reg=%02x\n",
178			KBUILD_MODNAME, ret, priv->i2c_address, reg);
179		return ret;
180	}
181	ret = i2c_transfer(priv->i2c, &msg[1], 1);
182	if (ret >= 0 && ret != 1)
183		ret = -EREMOTEIO;
184	if (ret < 0) {
185		dev_warn(&priv->i2c->dev,
186			"%s: i2c rd failed=%d addr=%02x reg=%02x\n",
187			KBUILD_MODNAME, ret, priv->i2c_address, reg);
188		return ret;
189	}
190	ascot2e_i2c_debug(priv, reg, 0, val, len);
191	return 0;
192}
193
194static int ascot2e_read_reg(struct ascot2e_priv *priv, u8 reg, u8 *val)
195{
196	return ascot2e_read_regs(priv, reg, val, 1);
197}
198
199static int ascot2e_set_reg_bits(struct ascot2e_priv *priv,
200				u8 reg, u8 data, u8 mask)
201{
202	int res;
203	u8 rdata;
204
205	if (mask != 0xff) {
206		res = ascot2e_read_reg(priv, reg, &rdata);
207		if (res != 0)
208			return res;
209		data = ((data & mask) | (rdata & (mask ^ 0xFF)));
210	}
211	return ascot2e_write_reg(priv, reg, data);
212}
213
214static int ascot2e_enter_power_save(struct ascot2e_priv *priv)
215{
216	u8 data[2];
217
218	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
219	if (priv->state == STATE_SLEEP)
220		return 0;
221	data[0] = 0x00;
222	data[1] = 0x04;
223	ascot2e_write_regs(priv, 0x14, data, 2);
224	ascot2e_write_reg(priv, 0x50, 0x01);
225	priv->state = STATE_SLEEP;
226	return 0;
227}
228
229static int ascot2e_leave_power_save(struct ascot2e_priv *priv)
230{
231	u8 data[2] = { 0xFB, 0x0F };
232
233	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
234	if (priv->state == STATE_ACTIVE)
235		return 0;
236	ascot2e_write_regs(priv, 0x14, data, 2);
237	ascot2e_write_reg(priv, 0x50, 0x00);
238	priv->state = STATE_ACTIVE;
239	return 0;
240}
241
242static int ascot2e_init(struct dvb_frontend *fe)
243{
244	struct ascot2e_priv *priv = fe->tuner_priv;
245
246	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
247	return ascot2e_leave_power_save(priv);
248}
249
250static void ascot2e_release(struct dvb_frontend *fe)
251{
252	struct ascot2e_priv *priv = fe->tuner_priv;
253
254	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
255	kfree(fe->tuner_priv);
256	fe->tuner_priv = NULL;
257}
258
259static int ascot2e_sleep(struct dvb_frontend *fe)
260{
261	struct ascot2e_priv *priv = fe->tuner_priv;
262
263	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
264	ascot2e_enter_power_save(priv);
265	return 0;
266}
267
268static enum ascot2e_tv_system_t ascot2e_get_tv_system(struct dvb_frontend *fe)
269{
270	enum ascot2e_tv_system_t system = ASCOT2E_DTV_UNKNOWN;
271	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
272	struct ascot2e_priv *priv = fe->tuner_priv;
273
274	if (p->delivery_system == SYS_DVBT) {
275		if (p->bandwidth_hz <= 5000000)
276			system = ASCOT2E_DTV_DVBT_5;
277		else if (p->bandwidth_hz <= 6000000)
278			system = ASCOT2E_DTV_DVBT_6;
279		else if (p->bandwidth_hz <= 7000000)
280			system = ASCOT2E_DTV_DVBT_7;
281		else if (p->bandwidth_hz <= 8000000)
282			system = ASCOT2E_DTV_DVBT_8;
283		else {
284			system = ASCOT2E_DTV_DVBT_8;
285			p->bandwidth_hz = 8000000;
286		}
287	} else if (p->delivery_system == SYS_DVBT2) {
288		if (p->bandwidth_hz <= 5000000)
289			system = ASCOT2E_DTV_DVBT2_5;
290		else if (p->bandwidth_hz <= 6000000)
291			system = ASCOT2E_DTV_DVBT2_6;
292		else if (p->bandwidth_hz <= 7000000)
293			system = ASCOT2E_DTV_DVBT2_7;
294		else if (p->bandwidth_hz <= 8000000)
295			system = ASCOT2E_DTV_DVBT2_8;
296		else {
297			system = ASCOT2E_DTV_DVBT2_8;
298			p->bandwidth_hz = 8000000;
299		}
300	} else if (p->delivery_system == SYS_DVBC_ANNEX_A) {
301		if (p->bandwidth_hz <= 6000000)
302			system = ASCOT2E_DTV_DVBC_6;
303		else if (p->bandwidth_hz <= 8000000)
304			system = ASCOT2E_DTV_DVBC_8;
305	}
306	dev_dbg(&priv->i2c->dev,
307		"%s(): ASCOT2E DTV system %d (delsys %d, bandwidth %d)\n",
308		__func__, (int)system, p->delivery_system, p->bandwidth_hz);
309	return system;
310}
311
312static int ascot2e_set_params(struct dvb_frontend *fe)
313{
314	u8 data[10];
315	u32 frequency;
316	enum ascot2e_tv_system_t tv_system;
317	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
318	struct ascot2e_priv *priv = fe->tuner_priv;
319
320	dev_dbg(&priv->i2c->dev, "%s(): tune frequency %dkHz\n",
321		__func__, p->frequency / 1000);
322	tv_system = ascot2e_get_tv_system(fe);
323
324	if (tv_system == ASCOT2E_DTV_UNKNOWN) {
325		dev_dbg(&priv->i2c->dev, "%s(): unknown DTV system\n",
326			__func__);
327		return -EINVAL;
328	}
329	if (priv->set_tuner)
330		priv->set_tuner(priv->set_tuner_data, 1);
331	frequency = roundup(p->frequency / 1000, 25);
332	if (priv->state == STATE_SLEEP)
333		ascot2e_leave_power_save(priv);
334
335	/* IF_OUT_SEL / AGC_SEL setting */
336	data[0] = 0x00;
337	if (ascot2e_sett[tv_system].agc_sel != ASCOT2E_AUTO) {
338		/* AGC pin setting from parameter table */
339		data[0] |= (u8)(
340			(ascot2e_sett[tv_system].agc_sel & 0x03) << 3);
341	}
342	if (ascot2e_sett[tv_system].if_out_sel != ASCOT2E_AUTO) {
343		/* IFOUT pin setting from parameter table */
344		data[0] |= (u8)(
345			(ascot2e_sett[tv_system].if_out_sel & 0x01) << 2);
346	}
347	/* Set bit[4:2] only */
348	ascot2e_set_reg_bits(priv, 0x05, data[0], 0x1c);
349	/* 0x06 - 0x0F */
350	/* REF_R setting (0x06) */
351	if (tv_system == ASCOT2E_DTV_DVBC_6 ||
352			tv_system == ASCOT2E_DTV_DVBC_8) {
353		/* xtal, xtal*2 */
354		data[0] = (frequency > 500000) ? 16 : 32;
355	} else {
356		/* xtal/8, xtal/4 */
357		data[0] = (frequency > 500000) ? 2 : 4;
358	}
359	/* XOSC_SEL=100uA */
360	data[1] = 0x04;
361	/* KBW setting (0x08), KC0 setting (0x09), KC1 setting (0x0A) */
362	if (tv_system == ASCOT2E_DTV_DVBC_6 ||
363			tv_system == ASCOT2E_DTV_DVBC_8) {
364		data[2] = 18;
365		data[3] = 120;
366		data[4] = 20;
367	} else {
368		data[2] = 48;
369		data[3] = 10;
370		data[4] = 30;
371	}
372	/* ORDER/R2_RANGE/R2_BANK/C2_BANK setting (0x0B) */
373	if (tv_system == ASCOT2E_DTV_DVBC_6 ||
374			tv_system == ASCOT2E_DTV_DVBC_8)
375		data[5] = (frequency > 500000) ? 0x08 : 0x0c;
376	else
377		data[5] = (frequency > 500000) ? 0x30 : 0x38;
378	/* Set MIX_OLL (0x0C) value from parameter table */
379	data[6] = ascot2e_sett[tv_system].mix_oll;
380	/* Set RF_GAIN (0x0D) setting from parameter table */
381	if (ascot2e_sett[tv_system].rf_gain == ASCOT2E_AUTO) {
382		/* RF_GAIN auto control enable */
383		ascot2e_write_reg(priv, 0x4E, 0x01);
384		/* RF_GAIN Default value */
385		data[7] = 0x00;
386	} else {
387		/* RF_GAIN auto control disable */
388		ascot2e_write_reg(priv, 0x4E, 0x00);
389		data[7] = ascot2e_sett[tv_system].rf_gain;
390	}
391	/* Set IF_BPF_GC/FIF_OFFSET (0x0E) value from parameter table */
392	data[8] = (u8)((ascot2e_sett[tv_system].fif_offset << 3) |
393		(ascot2e_sett[tv_system].if_bpf_gc & 0x07));
394	/* Set BW_OFFSET (0x0F) value from parameter table */
395	data[9] = ascot2e_sett[tv_system].bw_offset;
396	ascot2e_write_regs(priv, 0x06, data, 10);
397	/*
398	 * 0x45 - 0x47
399	 * LNA optimization setting
400	 * RF_LNA_DIST1-5, RF_LNA_CM
401	 */
402	if (tv_system == ASCOT2E_DTV_DVBC_6 ||
403			tv_system == ASCOT2E_DTV_DVBC_8) {
404		data[0] = 0x0F;
405		data[1] = 0x00;
406		data[2] = 0x01;
407	} else {
408		data[0] = 0x0F;
409		data[1] = 0x00;
410		data[2] = 0x03;
411	}
412	ascot2e_write_regs(priv, 0x45, data, 3);
413	/* 0x49 - 0x4A
414	 Set RF_OLDET_ENX/RF_OLDET_OLL value from parameter table */
415	data[0] = ascot2e_sett[tv_system].rf_oldet;
416	/* Set IF_BPF_F0 value from parameter table */
417	data[1] = ascot2e_sett[tv_system].if_bpf_f0;
418	ascot2e_write_regs(priv, 0x49, data, 2);
419	/*
420	 * Tune now
421	 * RFAGC fast mode / RFAGC auto control enable
422	 * (set bit[7], bit[5:4] only)
423	 * vco_cal = 1, set MIX_OL_CPU_EN
424	 */
425	ascot2e_set_reg_bits(priv, 0x0c, 0x90, 0xb0);
426	/* Logic wake up, CPU wake up */
427	data[0] = 0xc4;
428	data[1] = 0x40;
429	ascot2e_write_regs(priv, 0x03, data, 2);
430	/* 0x10 - 0x14 */
431	data[0] = (u8)(frequency & 0xFF);         /* 0x10: FRF_L */
432	data[1] = (u8)((frequency >> 8) & 0xFF);  /* 0x11: FRF_M */
433	data[2] = (u8)((frequency >> 16) & 0x0F); /* 0x12: FRF_H (bit[3:0]) */
434	/* 0x12: BW (bit[5:4]) */
435	data[2] |= (u8)(ascot2e_sett[tv_system].bw << 4);
436	data[3] = 0xFF; /* 0x13: VCO calibration enable */
437	data[4] = 0xFF; /* 0x14: Analog block enable */
438	/* Tune (Burst write) */
439	ascot2e_write_regs(priv, 0x10, data, 5);
440	msleep(50);
441	/* CPU deep sleep */
442	ascot2e_write_reg(priv, 0x04, 0x00);
443	/* Logic sleep */
444	ascot2e_write_reg(priv, 0x03, 0xC0);
445	/* RFAGC normal mode (set bit[5:4] only) */
446	ascot2e_set_reg_bits(priv, 0x0C, 0x00, 0x30);
447	priv->frequency = frequency;
448	return 0;
449}
450
451static int ascot2e_get_frequency(struct dvb_frontend *fe, u32 *frequency)
452{
453	struct ascot2e_priv *priv = fe->tuner_priv;
454
455	*frequency = priv->frequency * 1000;
456	return 0;
457}
458
459static const struct dvb_tuner_ops ascot2e_tuner_ops = {
460	.info = {
461		.name = "Sony ASCOT2E",
462		.frequency_min_hz  =    1 * MHz,
463		.frequency_max_hz  = 1200 * MHz,
464		.frequency_step_hz =   25 * kHz,
465	},
466	.init = ascot2e_init,
467	.release = ascot2e_release,
468	.sleep = ascot2e_sleep,
469	.set_params = ascot2e_set_params,
470	.get_frequency = ascot2e_get_frequency,
471};
472
473struct dvb_frontend *ascot2e_attach(struct dvb_frontend *fe,
474				    const struct ascot2e_config *config,
475				    struct i2c_adapter *i2c)
476{
477	u8 data[4];
478	struct ascot2e_priv *priv = NULL;
479
480	priv = kzalloc(sizeof(struct ascot2e_priv), GFP_KERNEL);
481	if (priv == NULL)
482		return NULL;
483	priv->i2c_address = (config->i2c_address >> 1);
484	priv->i2c = i2c;
485	priv->set_tuner_data = config->set_tuner_priv;
486	priv->set_tuner = config->set_tuner_callback;
487
488	if (fe->ops.i2c_gate_ctrl)
489		fe->ops.i2c_gate_ctrl(fe, 1);
490
491	/* 16 MHz xTal frequency */
492	data[0] = 16;
493	/* VCO current setting */
494	data[1] = 0x06;
495	/* Logic wake up, CPU boot */
496	data[2] = 0xC4;
497	data[3] = 0x40;
498	ascot2e_write_regs(priv, 0x01, data, 4);
499	/* RFVGA optimization setting (RF_DIST0 - RF_DIST2) */
500	data[0] = 0x10;
501	data[1] = 0x3F;
502	data[2] = 0x25;
503	ascot2e_write_regs(priv, 0x22, data, 3);
504	/* PLL mode setting */
505	ascot2e_write_reg(priv, 0x28, 0x1e);
506	/* RSSI setting */
507	ascot2e_write_reg(priv, 0x59, 0x04);
508	/* TODO check CPU HW error state here */
509	msleep(80);
510	/* Xtal oscillator current control setting */
511	ascot2e_write_reg(priv, 0x4c, 0x01);
512	/* XOSC_SEL=100uA */
513	ascot2e_write_reg(priv, 0x07, 0x04);
514	/* CPU deep sleep */
515	ascot2e_write_reg(priv, 0x04, 0x00);
516	/* Logic sleep */
517	ascot2e_write_reg(priv, 0x03, 0xc0);
518	/* Power save setting */
519	data[0] = 0x00;
520	data[1] = 0x04;
521	ascot2e_write_regs(priv, 0x14, data, 2);
522	ascot2e_write_reg(priv, 0x50, 0x01);
523	priv->state = STATE_SLEEP;
524
525	if (fe->ops.i2c_gate_ctrl)
526		fe->ops.i2c_gate_ctrl(fe, 0);
527
528	memcpy(&fe->ops.tuner_ops, &ascot2e_tuner_ops,
529				sizeof(struct dvb_tuner_ops));
530	fe->tuner_priv = priv;
531	dev_info(&priv->i2c->dev,
532		"Sony ASCOT2E attached on addr=%x at I2C adapter %p\n",
533		priv->i2c_address, priv->i2c);
534	return fe;
535}
536EXPORT_SYMBOL_GPL(ascot2e_attach);
537
538MODULE_DESCRIPTION("Sony ASCOT2E terr/cab tuner driver");
539MODULE_AUTHOR("info@netup.ru");
540MODULE_LICENSE("GPL");
541