1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * cxd2841er.c
4 *
5 * Sony digital demodulator driver for
6 *	CXD2841ER - DVB-S/S2/T/T2/C/C2
7 *	CXD2854ER - DVB-S/S2/T/T2/C/C2, ISDB-T/S
8 *
9 * Copyright 2012 Sony Corporation
10 * Copyright (C) 2014 NetUP Inc.
11 * Copyright (C) 2014 Sergey Kozlov <serjk@netup.ru>
12 * Copyright (C) 2014 Abylay Ospan <aospan@netup.ru>
13  */
14
15#include <linux/module.h>
16#include <linux/init.h>
17#include <linux/string.h>
18#include <linux/slab.h>
19#include <linux/bitops.h>
20#include <linux/math64.h>
21#include <linux/log2.h>
22#include <linux/dynamic_debug.h>
23#include <linux/kernel.h>
24
25#include <linux/int_log.h>
26#include <media/dvb_frontend.h>
27#include "cxd2841er.h"
28#include "cxd2841er_priv.h"
29
30#define MAX_WRITE_REGSIZE	16
31#define LOG2_E_100X 144
32
33#define INTLOG10X100(x) ((u32) (((u64) intlog10(x) * 100) >> 24))
34
35/* DVB-C constellation */
36enum sony_dvbc_constellation_t {
37	SONY_DVBC_CONSTELLATION_16QAM,
38	SONY_DVBC_CONSTELLATION_32QAM,
39	SONY_DVBC_CONSTELLATION_64QAM,
40	SONY_DVBC_CONSTELLATION_128QAM,
41	SONY_DVBC_CONSTELLATION_256QAM
42};
43
44enum cxd2841er_state {
45	STATE_SHUTDOWN = 0,
46	STATE_SLEEP_S,
47	STATE_ACTIVE_S,
48	STATE_SLEEP_TC,
49	STATE_ACTIVE_TC
50};
51
52struct cxd2841er_priv {
53	struct dvb_frontend		frontend;
54	struct i2c_adapter		*i2c;
55	u8				i2c_addr_slvx;
56	u8				i2c_addr_slvt;
57	const struct cxd2841er_config	*config;
58	enum cxd2841er_state		state;
59	u8				system;
60	enum cxd2841er_xtal		xtal;
61	enum fe_caps caps;
62	u32				flags;
63	unsigned long			stats_time;
64};
65
66static const struct cxd2841er_cnr_data s_cn_data[] = {
67	{ 0x033e, 0 }, { 0x0339, 100 }, { 0x0333, 200 },
68	{ 0x032e, 300 }, { 0x0329, 400 }, { 0x0324, 500 },
69	{ 0x031e, 600 }, { 0x0319, 700 }, { 0x0314, 800 },
70	{ 0x030f, 900 }, { 0x030a, 1000 }, { 0x02ff, 1100 },
71	{ 0x02f4, 1200 }, { 0x02e9, 1300 }, { 0x02de, 1400 },
72	{ 0x02d4, 1500 }, { 0x02c9, 1600 }, { 0x02bf, 1700 },
73	{ 0x02b5, 1800 }, { 0x02ab, 1900 }, { 0x02a1, 2000 },
74	{ 0x029b, 2100 }, { 0x0295, 2200 }, { 0x0290, 2300 },
75	{ 0x028a, 2400 }, { 0x0284, 2500 }, { 0x027f, 2600 },
76	{ 0x0279, 2700 }, { 0x0274, 2800 }, { 0x026e, 2900 },
77	{ 0x0269, 3000 }, { 0x0262, 3100 }, { 0x025c, 3200 },
78	{ 0x0255, 3300 }, { 0x024f, 3400 }, { 0x0249, 3500 },
79	{ 0x0242, 3600 }, { 0x023c, 3700 }, { 0x0236, 3800 },
80	{ 0x0230, 3900 }, { 0x022a, 4000 }, { 0x0223, 4100 },
81	{ 0x021c, 4200 }, { 0x0215, 4300 }, { 0x020e, 4400 },
82	{ 0x0207, 4500 }, { 0x0201, 4600 }, { 0x01fa, 4700 },
83	{ 0x01f4, 4800 }, { 0x01ed, 4900 }, { 0x01e7, 5000 },
84	{ 0x01e0, 5100 }, { 0x01d9, 5200 }, { 0x01d2, 5300 },
85	{ 0x01cb, 5400 }, { 0x01c4, 5500 }, { 0x01be, 5600 },
86	{ 0x01b7, 5700 }, { 0x01b1, 5800 }, { 0x01aa, 5900 },
87	{ 0x01a4, 6000 }, { 0x019d, 6100 }, { 0x0196, 6200 },
88	{ 0x018f, 6300 }, { 0x0189, 6400 }, { 0x0182, 6500 },
89	{ 0x017c, 6600 }, { 0x0175, 6700 }, { 0x016f, 6800 },
90	{ 0x0169, 6900 }, { 0x0163, 7000 }, { 0x015c, 7100 },
91	{ 0x0156, 7200 }, { 0x0150, 7300 }, { 0x014a, 7400 },
92	{ 0x0144, 7500 }, { 0x013e, 7600 }, { 0x0138, 7700 },
93	{ 0x0132, 7800 }, { 0x012d, 7900 }, { 0x0127, 8000 },
94	{ 0x0121, 8100 }, { 0x011c, 8200 }, { 0x0116, 8300 },
95	{ 0x0111, 8400 }, { 0x010b, 8500 }, { 0x0106, 8600 },
96	{ 0x0101, 8700 }, { 0x00fc, 8800 }, { 0x00f7, 8900 },
97	{ 0x00f2, 9000 }, { 0x00ee, 9100 }, { 0x00ea, 9200 },
98	{ 0x00e6, 9300 }, { 0x00e2, 9400 }, { 0x00de, 9500 },
99	{ 0x00da, 9600 }, { 0x00d7, 9700 }, { 0x00d3, 9800 },
100	{ 0x00d0, 9900 }, { 0x00cc, 10000 }, { 0x00c7, 10100 },
101	{ 0x00c3, 10200 }, { 0x00bf, 10300 }, { 0x00ba, 10400 },
102	{ 0x00b6, 10500 }, { 0x00b2, 10600 }, { 0x00ae, 10700 },
103	{ 0x00aa, 10800 }, { 0x00a7, 10900 }, { 0x00a3, 11000 },
104	{ 0x009f, 11100 }, { 0x009c, 11200 }, { 0x0098, 11300 },
105	{ 0x0094, 11400 }, { 0x0091, 11500 }, { 0x008e, 11600 },
106	{ 0x008a, 11700 }, { 0x0087, 11800 }, { 0x0084, 11900 },
107	{ 0x0081, 12000 }, { 0x007e, 12100 }, { 0x007b, 12200 },
108	{ 0x0079, 12300 }, { 0x0076, 12400 }, { 0x0073, 12500 },
109	{ 0x0071, 12600 }, { 0x006e, 12700 }, { 0x006c, 12800 },
110	{ 0x0069, 12900 }, { 0x0067, 13000 }, { 0x0065, 13100 },
111	{ 0x0062, 13200 }, { 0x0060, 13300 }, { 0x005e, 13400 },
112	{ 0x005c, 13500 }, { 0x005a, 13600 }, { 0x0058, 13700 },
113	{ 0x0056, 13800 }, { 0x0054, 13900 }, { 0x0052, 14000 },
114	{ 0x0050, 14100 }, { 0x004e, 14200 }, { 0x004c, 14300 },
115	{ 0x004b, 14400 }, { 0x0049, 14500 }, { 0x0047, 14600 },
116	{ 0x0046, 14700 }, { 0x0044, 14800 }, { 0x0043, 14900 },
117	{ 0x0041, 15000 }, { 0x003f, 15100 }, { 0x003e, 15200 },
118	{ 0x003c, 15300 }, { 0x003b, 15400 }, { 0x003a, 15500 },
119	{ 0x0037, 15700 }, { 0x0036, 15800 }, { 0x0034, 15900 },
120	{ 0x0033, 16000 }, { 0x0032, 16100 }, { 0x0031, 16200 },
121	{ 0x0030, 16300 }, { 0x002f, 16400 }, { 0x002e, 16500 },
122	{ 0x002d, 16600 }, { 0x002c, 16700 }, { 0x002b, 16800 },
123	{ 0x002a, 16900 }, { 0x0029, 17000 }, { 0x0028, 17100 },
124	{ 0x0027, 17200 }, { 0x0026, 17300 }, { 0x0025, 17400 },
125	{ 0x0024, 17500 }, { 0x0023, 17600 }, { 0x0022, 17800 },
126	{ 0x0021, 17900 }, { 0x0020, 18000 }, { 0x001f, 18200 },
127	{ 0x001e, 18300 }, { 0x001d, 18500 }, { 0x001c, 18700 },
128	{ 0x001b, 18900 }, { 0x001a, 19000 }, { 0x0019, 19200 },
129	{ 0x0018, 19300 }, { 0x0017, 19500 }, { 0x0016, 19700 },
130	{ 0x0015, 19900 }, { 0x0014, 20000 },
131};
132
133static const struct cxd2841er_cnr_data s2_cn_data[] = {
134	{ 0x05af, 0 }, { 0x0597, 100 }, { 0x057e, 200 },
135	{ 0x0567, 300 }, { 0x0550, 400 }, { 0x0539, 500 },
136	{ 0x0522, 600 }, { 0x050c, 700 }, { 0x04f6, 800 },
137	{ 0x04e1, 900 }, { 0x04cc, 1000 }, { 0x04b6, 1100 },
138	{ 0x04a1, 1200 }, { 0x048c, 1300 }, { 0x0477, 1400 },
139	{ 0x0463, 1500 }, { 0x044f, 1600 }, { 0x043c, 1700 },
140	{ 0x0428, 1800 }, { 0x0416, 1900 }, { 0x0403, 2000 },
141	{ 0x03ef, 2100 }, { 0x03dc, 2200 }, { 0x03c9, 2300 },
142	{ 0x03b6, 2400 }, { 0x03a4, 2500 }, { 0x0392, 2600 },
143	{ 0x0381, 2700 }, { 0x036f, 2800 }, { 0x035f, 2900 },
144	{ 0x034e, 3000 }, { 0x033d, 3100 }, { 0x032d, 3200 },
145	{ 0x031d, 3300 }, { 0x030d, 3400 }, { 0x02fd, 3500 },
146	{ 0x02ee, 3600 }, { 0x02df, 3700 }, { 0x02d0, 3800 },
147	{ 0x02c2, 3900 }, { 0x02b4, 4000 }, { 0x02a6, 4100 },
148	{ 0x0299, 4200 }, { 0x028c, 4300 }, { 0x027f, 4400 },
149	{ 0x0272, 4500 }, { 0x0265, 4600 }, { 0x0259, 4700 },
150	{ 0x024d, 4800 }, { 0x0241, 4900 }, { 0x0236, 5000 },
151	{ 0x022b, 5100 }, { 0x0220, 5200 }, { 0x0215, 5300 },
152	{ 0x020a, 5400 }, { 0x0200, 5500 }, { 0x01f6, 5600 },
153	{ 0x01ec, 5700 }, { 0x01e2, 5800 }, { 0x01d8, 5900 },
154	{ 0x01cf, 6000 }, { 0x01c6, 6100 }, { 0x01bc, 6200 },
155	{ 0x01b3, 6300 }, { 0x01aa, 6400 }, { 0x01a2, 6500 },
156	{ 0x0199, 6600 }, { 0x0191, 6700 }, { 0x0189, 6800 },
157	{ 0x0181, 6900 }, { 0x0179, 7000 }, { 0x0171, 7100 },
158	{ 0x0169, 7200 }, { 0x0161, 7300 }, { 0x015a, 7400 },
159	{ 0x0153, 7500 }, { 0x014b, 7600 }, { 0x0144, 7700 },
160	{ 0x013d, 7800 }, { 0x0137, 7900 }, { 0x0130, 8000 },
161	{ 0x012a, 8100 }, { 0x0124, 8200 }, { 0x011e, 8300 },
162	{ 0x0118, 8400 }, { 0x0112, 8500 }, { 0x010c, 8600 },
163	{ 0x0107, 8700 }, { 0x0101, 8800 }, { 0x00fc, 8900 },
164	{ 0x00f7, 9000 }, { 0x00f2, 9100 }, { 0x00ec, 9200 },
165	{ 0x00e7, 9300 }, { 0x00e2, 9400 }, { 0x00dd, 9500 },
166	{ 0x00d8, 9600 }, { 0x00d4, 9700 }, { 0x00cf, 9800 },
167	{ 0x00ca, 9900 }, { 0x00c6, 10000 }, { 0x00c2, 10100 },
168	{ 0x00be, 10200 }, { 0x00b9, 10300 }, { 0x00b5, 10400 },
169	{ 0x00b1, 10500 }, { 0x00ae, 10600 }, { 0x00aa, 10700 },
170	{ 0x00a6, 10800 }, { 0x00a3, 10900 }, { 0x009f, 11000 },
171	{ 0x009b, 11100 }, { 0x0098, 11200 }, { 0x0095, 11300 },
172	{ 0x0091, 11400 }, { 0x008e, 11500 }, { 0x008b, 11600 },
173	{ 0x0088, 11700 }, { 0x0085, 11800 }, { 0x0082, 11900 },
174	{ 0x007f, 12000 }, { 0x007c, 12100 }, { 0x007a, 12200 },
175	{ 0x0077, 12300 }, { 0x0074, 12400 }, { 0x0072, 12500 },
176	{ 0x006f, 12600 }, { 0x006d, 12700 }, { 0x006b, 12800 },
177	{ 0x0068, 12900 }, { 0x0066, 13000 }, { 0x0064, 13100 },
178	{ 0x0061, 13200 }, { 0x005f, 13300 }, { 0x005d, 13400 },
179	{ 0x005b, 13500 }, { 0x0059, 13600 }, { 0x0057, 13700 },
180	{ 0x0055, 13800 }, { 0x0053, 13900 }, { 0x0051, 14000 },
181	{ 0x004f, 14100 }, { 0x004e, 14200 }, { 0x004c, 14300 },
182	{ 0x004a, 14400 }, { 0x0049, 14500 }, { 0x0047, 14600 },
183	{ 0x0045, 14700 }, { 0x0044, 14800 }, { 0x0042, 14900 },
184	{ 0x0041, 15000 }, { 0x003f, 15100 }, { 0x003e, 15200 },
185	{ 0x003c, 15300 }, { 0x003b, 15400 }, { 0x003a, 15500 },
186	{ 0x0038, 15600 }, { 0x0037, 15700 }, { 0x0036, 15800 },
187	{ 0x0034, 15900 }, { 0x0033, 16000 }, { 0x0032, 16100 },
188	{ 0x0031, 16200 }, { 0x0030, 16300 }, { 0x002f, 16400 },
189	{ 0x002e, 16500 }, { 0x002d, 16600 }, { 0x002c, 16700 },
190	{ 0x002b, 16800 }, { 0x002a, 16900 }, { 0x0029, 17000 },
191	{ 0x0028, 17100 }, { 0x0027, 17200 }, { 0x0026, 17300 },
192	{ 0x0025, 17400 }, { 0x0024, 17500 }, { 0x0023, 17600 },
193	{ 0x0022, 17800 }, { 0x0021, 17900 }, { 0x0020, 18000 },
194	{ 0x001f, 18200 }, { 0x001e, 18300 }, { 0x001d, 18500 },
195	{ 0x001c, 18700 }, { 0x001b, 18900 }, { 0x001a, 19000 },
196	{ 0x0019, 19200 }, { 0x0018, 19300 }, { 0x0017, 19500 },
197	{ 0x0016, 19700 }, { 0x0015, 19900 }, { 0x0014, 20000 },
198};
199
200static int cxd2841er_freeze_regs(struct cxd2841er_priv *priv);
201static int cxd2841er_unfreeze_regs(struct cxd2841er_priv *priv);
202
203static void cxd2841er_i2c_debug(struct cxd2841er_priv *priv,
204				u8 addr, u8 reg, u8 write,
205				const u8 *data, u32 len)
206{
207	dev_dbg(&priv->i2c->dev,
208		"cxd2841er: I2C %s addr %02x reg 0x%02x size %d data %*ph\n",
209		(write == 0 ? "read" : "write"), addr, reg, len, len, data);
210}
211
212static int cxd2841er_write_regs(struct cxd2841er_priv *priv,
213				u8 addr, u8 reg, const u8 *data, u32 len)
214{
215	int ret;
216	u8 buf[MAX_WRITE_REGSIZE + 1];
217	u8 i2c_addr = (addr == I2C_SLVX ?
218		priv->i2c_addr_slvx : priv->i2c_addr_slvt);
219	struct i2c_msg msg[1] = {
220		{
221			.addr = i2c_addr,
222			.flags = 0,
223			.len = len + 1,
224			.buf = buf,
225		}
226	};
227
228	if (len + 1 >= sizeof(buf)) {
229		dev_warn(&priv->i2c->dev, "wr reg=%04x: len=%d is too big!\n",
230			 reg, len + 1);
231		return -E2BIG;
232	}
233
234	cxd2841er_i2c_debug(priv, i2c_addr, reg, 1, data, len);
235	buf[0] = reg;
236	memcpy(&buf[1], data, len);
237
238	ret = i2c_transfer(priv->i2c, msg, 1);
239	if (ret >= 0 && ret != 1)
240		ret = -EIO;
241	if (ret < 0) {
242		dev_warn(&priv->i2c->dev,
243			"%s: i2c wr failed=%d addr=%02x reg=%02x len=%d\n",
244			KBUILD_MODNAME, ret, i2c_addr, reg, len);
245		return ret;
246	}
247	return 0;
248}
249
250static int cxd2841er_write_reg(struct cxd2841er_priv *priv,
251			       u8 addr, u8 reg, u8 val)
252{
253	u8 tmp = val; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
254
255	return cxd2841er_write_regs(priv, addr, reg, &tmp, 1);
256}
257
258static int cxd2841er_read_regs(struct cxd2841er_priv *priv,
259			       u8 addr, u8 reg, u8 *val, u32 len)
260{
261	int ret;
262	u8 i2c_addr = (addr == I2C_SLVX ?
263		priv->i2c_addr_slvx : priv->i2c_addr_slvt);
264	struct i2c_msg msg[2] = {
265		{
266			.addr = i2c_addr,
267			.flags = 0,
268			.len = 1,
269			.buf = &reg,
270		}, {
271			.addr = i2c_addr,
272			.flags = I2C_M_RD,
273			.len = len,
274			.buf = val,
275		}
276	};
277
278	ret = i2c_transfer(priv->i2c, msg, 2);
279	if (ret >= 0 && ret != 2)
280		ret = -EIO;
281	if (ret < 0) {
282		dev_warn(&priv->i2c->dev,
283			"%s: i2c rd failed=%d addr=%02x reg=%02x\n",
284			KBUILD_MODNAME, ret, i2c_addr, reg);
285		return ret;
286	}
287	cxd2841er_i2c_debug(priv, i2c_addr, reg, 0, val, len);
288	return 0;
289}
290
291static int cxd2841er_read_reg(struct cxd2841er_priv *priv,
292			      u8 addr, u8 reg, u8 *val)
293{
294	return cxd2841er_read_regs(priv, addr, reg, val, 1);
295}
296
297static int cxd2841er_set_reg_bits(struct cxd2841er_priv *priv,
298				  u8 addr, u8 reg, u8 data, u8 mask)
299{
300	int res;
301	u8 rdata;
302
303	if (mask != 0xff) {
304		res = cxd2841er_read_reg(priv, addr, reg, &rdata);
305		if (res)
306			return res;
307		data = ((data & mask) | (rdata & (mask ^ 0xFF)));
308	}
309	return cxd2841er_write_reg(priv, addr, reg, data);
310}
311
312static u32 cxd2841er_calc_iffreq_xtal(enum cxd2841er_xtal xtal, u32 ifhz)
313{
314	u64 tmp;
315
316	tmp = (u64) ifhz * 16777216;
317	do_div(tmp, ((xtal == SONY_XTAL_24000) ? 48000000 : 41000000));
318
319	return (u32) tmp;
320}
321
322static u32 cxd2841er_calc_iffreq(u32 ifhz)
323{
324	return cxd2841er_calc_iffreq_xtal(SONY_XTAL_20500, ifhz);
325}
326
327static int cxd2841er_get_if_hz(struct cxd2841er_priv *priv, u32 def_hz)
328{
329	u32 hz;
330
331	if (priv->frontend.ops.tuner_ops.get_if_frequency
332			&& (priv->flags & CXD2841ER_AUTO_IFHZ))
333		priv->frontend.ops.tuner_ops.get_if_frequency(
334			&priv->frontend, &hz);
335	else
336		hz = def_hz;
337
338	return hz;
339}
340
341static int cxd2841er_tuner_set(struct dvb_frontend *fe)
342{
343	struct cxd2841er_priv *priv = fe->demodulator_priv;
344
345	if ((priv->flags & CXD2841ER_USE_GATECTRL) && fe->ops.i2c_gate_ctrl)
346		fe->ops.i2c_gate_ctrl(fe, 1);
347	if (fe->ops.tuner_ops.set_params)
348		fe->ops.tuner_ops.set_params(fe);
349	if ((priv->flags & CXD2841ER_USE_GATECTRL) && fe->ops.i2c_gate_ctrl)
350		fe->ops.i2c_gate_ctrl(fe, 0);
351
352	return 0;
353}
354
355static int cxd2841er_dvbs2_set_symbol_rate(struct cxd2841er_priv *priv,
356					   u32 symbol_rate)
357{
358	u32 reg_value = 0;
359	u8 data[3] = {0, 0, 0};
360
361	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
362	/*
363	 * regValue = (symbolRateKSps * 2^14 / 1000) + 0.5
364	 *          = ((symbolRateKSps * 2^14) + 500) / 1000
365	 *          = ((symbolRateKSps * 16384) + 500) / 1000
366	 */
367	reg_value = DIV_ROUND_CLOSEST(symbol_rate * 16384, 1000);
368	if ((reg_value == 0) || (reg_value > 0xFFFFF)) {
369		dev_err(&priv->i2c->dev,
370			"%s(): reg_value is out of range\n", __func__);
371		return -EINVAL;
372	}
373	data[0] = (u8)((reg_value >> 16) & 0x0F);
374	data[1] = (u8)((reg_value >>  8) & 0xFF);
375	data[2] = (u8)(reg_value & 0xFF);
376	/* Set SLV-T Bank : 0xAE */
377	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xae);
378	cxd2841er_write_regs(priv, I2C_SLVT, 0x20, data, 3);
379	return 0;
380}
381
382static void cxd2841er_set_ts_clock_mode(struct cxd2841er_priv *priv,
383					u8 system);
384
385static int cxd2841er_sleep_s_to_active_s(struct cxd2841er_priv *priv,
386					 u8 system, u32 symbol_rate)
387{
388	int ret;
389	u8 data[4] = { 0, 0, 0, 0 };
390
391	if (priv->state != STATE_SLEEP_S) {
392		dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
393			__func__, (int)priv->state);
394		return -EINVAL;
395	}
396	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
397	cxd2841er_set_ts_clock_mode(priv, SYS_DVBS);
398	/* Set demod mode */
399	if (system == SYS_DVBS) {
400		data[0] = 0x0A;
401	} else if (system == SYS_DVBS2) {
402		data[0] = 0x0B;
403	} else {
404		dev_err(&priv->i2c->dev, "%s(): invalid delsys %d\n",
405			__func__, system);
406		return -EINVAL;
407	}
408	/* Set SLV-X Bank : 0x00 */
409	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
410	cxd2841er_write_reg(priv, I2C_SLVX, 0x17, data[0]);
411	/* DVB-S/S2 */
412	data[0] = 0x00;
413	/* Set SLV-T Bank : 0x00 */
414	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
415	/* Enable S/S2 auto detection 1 */
416	cxd2841er_write_reg(priv, I2C_SLVT, 0x2d, data[0]);
417	/* Set SLV-T Bank : 0xAE */
418	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xae);
419	/* Enable S/S2 auto detection 2 */
420	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, data[0]);
421	/* Set SLV-T Bank : 0x00 */
422	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
423	/* Enable demod clock */
424	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
425	/* Enable ADC clock */
426	cxd2841er_write_reg(priv, I2C_SLVT, 0x31, 0x01);
427	/* Enable ADC 1 */
428	cxd2841er_write_reg(priv, I2C_SLVT, 0x63, 0x16);
429	/* Enable ADC 2 */
430	cxd2841er_write_reg(priv, I2C_SLVT, 0x65, 0x3f);
431	/* Set SLV-X Bank : 0x00 */
432	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
433	/* Enable ADC 3 */
434	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
435	/* Set SLV-T Bank : 0xA3 */
436	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa3);
437	cxd2841er_write_reg(priv, I2C_SLVT, 0xac, 0x00);
438	data[0] = 0x07;
439	data[1] = 0x3B;
440	data[2] = 0x08;
441	data[3] = 0xC5;
442	/* Set SLV-T Bank : 0xAB */
443	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xab);
444	cxd2841er_write_regs(priv, I2C_SLVT, 0x98, data, 4);
445	data[0] = 0x05;
446	data[1] = 0x80;
447	data[2] = 0x0A;
448	data[3] = 0x80;
449	cxd2841er_write_regs(priv, I2C_SLVT, 0xa8, data, 4);
450	data[0] = 0x0C;
451	data[1] = 0xCC;
452	cxd2841er_write_regs(priv, I2C_SLVT, 0xc3, data, 2);
453	/* Set demod parameter */
454	ret = cxd2841er_dvbs2_set_symbol_rate(priv, symbol_rate);
455	if (ret != 0)
456		return ret;
457	/* Set SLV-T Bank : 0x00 */
458	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
459	/* disable Hi-Z setting 1 */
460	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x10);
461	/* disable Hi-Z setting 2 */
462	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
463	priv->state = STATE_ACTIVE_S;
464	return 0;
465}
466
467static int cxd2841er_sleep_tc_to_active_t_band(struct cxd2841er_priv *priv,
468					       u32 bandwidth);
469
470static int cxd2841er_sleep_tc_to_active_t2_band(struct cxd2841er_priv *priv,
471						u32 bandwidth);
472
473static int cxd2841er_sleep_tc_to_active_c_band(struct cxd2841er_priv *priv,
474					       u32 bandwidth);
475
476static int cxd2841er_sleep_tc_to_active_i(struct cxd2841er_priv *priv,
477		u32 bandwidth);
478
479static int cxd2841er_active_i_to_sleep_tc(struct cxd2841er_priv *priv);
480
481static int cxd2841er_sleep_tc_to_shutdown(struct cxd2841er_priv *priv);
482
483static int cxd2841er_shutdown_to_sleep_tc(struct cxd2841er_priv *priv);
484
485static int cxd2841er_sleep_tc(struct dvb_frontend *fe);
486
487static int cxd2841er_retune_active(struct cxd2841er_priv *priv,
488				   struct dtv_frontend_properties *p)
489{
490	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
491	if (priv->state != STATE_ACTIVE_S &&
492			priv->state != STATE_ACTIVE_TC) {
493		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
494			__func__, priv->state);
495		return -EINVAL;
496	}
497	/* Set SLV-T Bank : 0x00 */
498	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
499	/* disable TS output */
500	cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
501	if (priv->state == STATE_ACTIVE_S)
502		return cxd2841er_dvbs2_set_symbol_rate(
503				priv, p->symbol_rate / 1000);
504	else if (priv->state == STATE_ACTIVE_TC) {
505		switch (priv->system) {
506		case SYS_DVBT:
507			return cxd2841er_sleep_tc_to_active_t_band(
508					priv, p->bandwidth_hz);
509		case SYS_DVBT2:
510			return cxd2841er_sleep_tc_to_active_t2_band(
511					priv, p->bandwidth_hz);
512		case SYS_DVBC_ANNEX_A:
513			return cxd2841er_sleep_tc_to_active_c_band(
514					priv, p->bandwidth_hz);
515		case SYS_ISDBT:
516			cxd2841er_active_i_to_sleep_tc(priv);
517			cxd2841er_sleep_tc_to_shutdown(priv);
518			cxd2841er_shutdown_to_sleep_tc(priv);
519			return cxd2841er_sleep_tc_to_active_i(
520					priv, p->bandwidth_hz);
521		}
522	}
523	dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
524		__func__, priv->system);
525	return -EINVAL;
526}
527
528static int cxd2841er_active_s_to_sleep_s(struct cxd2841er_priv *priv)
529{
530	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
531	if (priv->state != STATE_ACTIVE_S) {
532		dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
533			__func__, priv->state);
534		return -EINVAL;
535	}
536	/* Set SLV-T Bank : 0x00 */
537	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
538	/* disable TS output */
539	cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
540	/* enable Hi-Z setting 1 */
541	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x1f);
542	/* enable Hi-Z setting 2 */
543	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
544	/* Set SLV-X Bank : 0x00 */
545	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
546	/* disable ADC 1 */
547	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
548	/* Set SLV-T Bank : 0x00 */
549	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
550	/* disable ADC clock */
551	cxd2841er_write_reg(priv, I2C_SLVT, 0x31, 0x00);
552	/* disable ADC 2 */
553	cxd2841er_write_reg(priv, I2C_SLVT, 0x63, 0x16);
554	/* disable ADC 3 */
555	cxd2841er_write_reg(priv, I2C_SLVT, 0x65, 0x27);
556	/* SADC Bias ON */
557	cxd2841er_write_reg(priv, I2C_SLVT, 0x69, 0x06);
558	/* disable demod clock */
559	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
560	/* Set SLV-T Bank : 0xAE */
561	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xae);
562	/* disable S/S2 auto detection1 */
563	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
564	/* Set SLV-T Bank : 0x00 */
565	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
566	/* disable S/S2 auto detection2 */
567	cxd2841er_write_reg(priv, I2C_SLVT, 0x2d, 0x00);
568	priv->state = STATE_SLEEP_S;
569	return 0;
570}
571
572static int cxd2841er_sleep_s_to_shutdown(struct cxd2841er_priv *priv)
573{
574	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
575	if (priv->state != STATE_SLEEP_S) {
576		dev_dbg(&priv->i2c->dev, "%s(): invalid demod state %d\n",
577			__func__, priv->state);
578		return -EINVAL;
579	}
580	/* Set SLV-T Bank : 0x00 */
581	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
582	/* Disable DSQOUT */
583	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
584	/* Disable DSQIN */
585	cxd2841er_write_reg(priv, I2C_SLVT, 0x9c, 0x00);
586	/* Set SLV-X Bank : 0x00 */
587	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
588	/* Disable oscillator */
589	cxd2841er_write_reg(priv, I2C_SLVX, 0x15, 0x01);
590	/* Set demod mode */
591	cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x01);
592	priv->state = STATE_SHUTDOWN;
593	return 0;
594}
595
596static int cxd2841er_sleep_tc_to_shutdown(struct cxd2841er_priv *priv)
597{
598	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
599	if (priv->state != STATE_SLEEP_TC) {
600		dev_dbg(&priv->i2c->dev, "%s(): invalid demod state %d\n",
601			__func__, priv->state);
602		return -EINVAL;
603	}
604	/* Set SLV-X Bank : 0x00 */
605	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
606	/* Disable oscillator */
607	cxd2841er_write_reg(priv, I2C_SLVX, 0x15, 0x01);
608	/* Set demod mode */
609	cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x01);
610	priv->state = STATE_SHUTDOWN;
611	return 0;
612}
613
614static int cxd2841er_active_t_to_sleep_tc(struct cxd2841er_priv *priv)
615{
616	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
617	if (priv->state != STATE_ACTIVE_TC) {
618		dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
619			__func__, priv->state);
620		return -EINVAL;
621	}
622	/* Set SLV-T Bank : 0x00 */
623	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
624	/* disable TS output */
625	cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
626	/* enable Hi-Z setting 1 */
627	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
628	/* enable Hi-Z setting 2 */
629	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
630	/* Set SLV-X Bank : 0x00 */
631	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
632	/* disable ADC 1 */
633	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
634	/* Set SLV-T Bank : 0x00 */
635	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
636	/* Disable ADC 2 */
637	cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
638	/* Disable ADC 3 */
639	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
640	/* Disable ADC clock */
641	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
642	/* Disable RF level monitor */
643	cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
644	/* Disable demod clock */
645	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
646	priv->state = STATE_SLEEP_TC;
647	return 0;
648}
649
650static int cxd2841er_active_t2_to_sleep_tc(struct cxd2841er_priv *priv)
651{
652	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
653	if (priv->state != STATE_ACTIVE_TC) {
654		dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
655			__func__, priv->state);
656		return -EINVAL;
657	}
658	/* Set SLV-T Bank : 0x00 */
659	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
660	/* disable TS output */
661	cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
662	/* enable Hi-Z setting 1 */
663	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
664	/* enable Hi-Z setting 2 */
665	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
666	/* Cancel DVB-T2 setting */
667	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x13);
668	cxd2841er_write_reg(priv, I2C_SLVT, 0x83, 0x40);
669	cxd2841er_write_reg(priv, I2C_SLVT, 0x86, 0x21);
670	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x9e, 0x09, 0x0f);
671	cxd2841er_write_reg(priv, I2C_SLVT, 0x9f, 0xfb);
672	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2a);
673	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x38, 0x00, 0x0f);
674	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2b);
675	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x11, 0x00, 0x3f);
676	/* Set SLV-X Bank : 0x00 */
677	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
678	/* disable ADC 1 */
679	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
680	/* Set SLV-T Bank : 0x00 */
681	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
682	/* Disable ADC 2 */
683	cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
684	/* Disable ADC 3 */
685	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
686	/* Disable ADC clock */
687	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
688	/* Disable RF level monitor */
689	cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
690	/* Disable demod clock */
691	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
692	priv->state = STATE_SLEEP_TC;
693	return 0;
694}
695
696static int cxd2841er_active_c_to_sleep_tc(struct cxd2841er_priv *priv)
697{
698	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
699	if (priv->state != STATE_ACTIVE_TC) {
700		dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
701			__func__, priv->state);
702		return -EINVAL;
703	}
704	/* Set SLV-T Bank : 0x00 */
705	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
706	/* disable TS output */
707	cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
708	/* enable Hi-Z setting 1 */
709	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
710	/* enable Hi-Z setting 2 */
711	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
712	/* Cancel DVB-C setting */
713	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
714	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa3, 0x00, 0x1f);
715	/* Set SLV-X Bank : 0x00 */
716	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
717	/* disable ADC 1 */
718	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
719	/* Set SLV-T Bank : 0x00 */
720	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
721	/* Disable ADC 2 */
722	cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
723	/* Disable ADC 3 */
724	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
725	/* Disable ADC clock */
726	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
727	/* Disable RF level monitor */
728	cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
729	/* Disable demod clock */
730	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
731	priv->state = STATE_SLEEP_TC;
732	return 0;
733}
734
735static int cxd2841er_active_i_to_sleep_tc(struct cxd2841er_priv *priv)
736{
737	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
738	if (priv->state != STATE_ACTIVE_TC) {
739		dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
740				__func__, priv->state);
741		return -EINVAL;
742	}
743	/* Set SLV-T Bank : 0x00 */
744	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
745	/* disable TS output */
746	cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x01);
747	/* enable Hi-Z setting 1 */
748	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x3f);
749	/* enable Hi-Z setting 2 */
750	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0xff);
751
752	/* TODO: Cancel demod parameter */
753
754	/* Set SLV-X Bank : 0x00 */
755	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
756	/* disable ADC 1 */
757	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x01);
758	/* Set SLV-T Bank : 0x00 */
759	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
760	/* Disable ADC 2 */
761	cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
762	/* Disable ADC 3 */
763	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
764	/* Disable ADC clock */
765	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
766	/* Disable RF level monitor */
767	cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
768	/* Disable demod clock */
769	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x00);
770	priv->state = STATE_SLEEP_TC;
771	return 0;
772}
773
774static int cxd2841er_shutdown_to_sleep_s(struct cxd2841er_priv *priv)
775{
776	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
777	if (priv->state != STATE_SHUTDOWN) {
778		dev_dbg(&priv->i2c->dev, "%s(): invalid demod state %d\n",
779			__func__, priv->state);
780		return -EINVAL;
781	}
782	/* Set SLV-X Bank : 0x00 */
783	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
784	/* Clear all demodulator registers */
785	cxd2841er_write_reg(priv, I2C_SLVX, 0x02, 0x00);
786	usleep_range(3000, 5000);
787	/* Set SLV-X Bank : 0x00 */
788	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
789	/* Set demod SW reset */
790	cxd2841er_write_reg(priv, I2C_SLVX, 0x10, 0x01);
791
792	switch (priv->xtal) {
793	case SONY_XTAL_20500:
794		cxd2841er_write_reg(priv, I2C_SLVX, 0x14, 0x00);
795		break;
796	case SONY_XTAL_24000:
797		/* Select demod frequency */
798		cxd2841er_write_reg(priv, I2C_SLVX, 0x12, 0x00);
799		cxd2841er_write_reg(priv, I2C_SLVX, 0x14, 0x03);
800		break;
801	case SONY_XTAL_41000:
802		cxd2841er_write_reg(priv, I2C_SLVX, 0x14, 0x01);
803		break;
804	default:
805		dev_dbg(&priv->i2c->dev, "%s(): invalid demod xtal %d\n",
806				__func__, priv->xtal);
807		return -EINVAL;
808	}
809
810	/* Set demod mode */
811	cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x0a);
812	/* Clear demod SW reset */
813	cxd2841er_write_reg(priv, I2C_SLVX, 0x10, 0x00);
814	usleep_range(1000, 2000);
815	/* Set SLV-T Bank : 0x00 */
816	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
817	/* enable DSQOUT */
818	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x1F);
819	/* enable DSQIN */
820	cxd2841er_write_reg(priv, I2C_SLVT, 0x9C, 0x40);
821	/* TADC Bias On */
822	cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
823	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
824	/* SADC Bias On */
825	cxd2841er_write_reg(priv, I2C_SLVT, 0x63, 0x16);
826	cxd2841er_write_reg(priv, I2C_SLVT, 0x65, 0x27);
827	cxd2841er_write_reg(priv, I2C_SLVT, 0x69, 0x06);
828	priv->state = STATE_SLEEP_S;
829	return 0;
830}
831
832static int cxd2841er_shutdown_to_sleep_tc(struct cxd2841er_priv *priv)
833{
834	u8 data = 0;
835
836	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
837	if (priv->state != STATE_SHUTDOWN) {
838		dev_dbg(&priv->i2c->dev, "%s(): invalid demod state %d\n",
839			__func__, priv->state);
840		return -EINVAL;
841	}
842	/* Set SLV-X Bank : 0x00 */
843	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
844	/* Clear all demodulator registers */
845	cxd2841er_write_reg(priv, I2C_SLVX, 0x02, 0x00);
846	usleep_range(3000, 5000);
847	/* Set SLV-X Bank : 0x00 */
848	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
849	/* Set demod SW reset */
850	cxd2841er_write_reg(priv, I2C_SLVX, 0x10, 0x01);
851  /* Select ADC clock mode */
852	cxd2841er_write_reg(priv, I2C_SLVX, 0x13, 0x00);
853
854	switch (priv->xtal) {
855	case SONY_XTAL_20500:
856		data = 0x0;
857		break;
858	case SONY_XTAL_24000:
859		/* Select demod frequency */
860		cxd2841er_write_reg(priv, I2C_SLVX, 0x12, 0x00);
861		data = 0x3;
862		break;
863	case SONY_XTAL_41000:
864		cxd2841er_write_reg(priv, I2C_SLVX, 0x12, 0x00);
865		data = 0x1;
866		break;
867	}
868	cxd2841er_write_reg(priv, I2C_SLVX, 0x14, data);
869	/* Clear demod SW reset */
870	cxd2841er_write_reg(priv, I2C_SLVX, 0x10, 0x00);
871	usleep_range(1000, 2000);
872	/* Set SLV-T Bank : 0x00 */
873	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
874	/* TADC Bias On */
875	cxd2841er_write_reg(priv, I2C_SLVT, 0x43, 0x0a);
876	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x0a);
877	/* SADC Bias On */
878	cxd2841er_write_reg(priv, I2C_SLVT, 0x63, 0x16);
879	cxd2841er_write_reg(priv, I2C_SLVT, 0x65, 0x27);
880	cxd2841er_write_reg(priv, I2C_SLVT, 0x69, 0x06);
881	priv->state = STATE_SLEEP_TC;
882	return 0;
883}
884
885static int cxd2841er_tune_done(struct cxd2841er_priv *priv)
886{
887	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
888	/* Set SLV-T Bank : 0x00 */
889	cxd2841er_write_reg(priv, I2C_SLVT, 0, 0);
890	/* SW Reset */
891	cxd2841er_write_reg(priv, I2C_SLVT, 0xfe, 0x01);
892	/* Enable TS output */
893	cxd2841er_write_reg(priv, I2C_SLVT, 0xc3, 0x00);
894	return 0;
895}
896
897/* Set TS parallel mode */
898static void cxd2841er_set_ts_clock_mode(struct cxd2841er_priv *priv,
899					u8 system)
900{
901	u8 serial_ts, ts_rate_ctrl_off, ts_in_off;
902
903	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
904	/* Set SLV-T Bank : 0x00 */
905	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
906	cxd2841er_read_reg(priv, I2C_SLVT, 0xc4, &serial_ts);
907	cxd2841er_read_reg(priv, I2C_SLVT, 0xd3, &ts_rate_ctrl_off);
908	cxd2841er_read_reg(priv, I2C_SLVT, 0xde, &ts_in_off);
909	dev_dbg(&priv->i2c->dev, "%s(): ser_ts=0x%02x rate_ctrl_off=0x%02x in_off=0x%02x\n",
910		__func__, serial_ts, ts_rate_ctrl_off, ts_in_off);
911
912	/*
913	 * slave    Bank    Addr    Bit    default    Name
914	 * <SLV-T>  00h     C4h     [1:0]  2'b??      OSERCKMODE
915	 */
916	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xc4,
917		((priv->flags & CXD2841ER_TS_SERIAL) ? 0x01 : 0x00), 0x03);
918	/*
919	 * slave    Bank    Addr    Bit    default    Name
920	 * <SLV-T>  00h     D1h     [1:0]  2'b??      OSERDUTYMODE
921	 */
922	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd1,
923		((priv->flags & CXD2841ER_TS_SERIAL) ? 0x01 : 0x00), 0x03);
924	/*
925	 * slave    Bank    Addr    Bit    default    Name
926	 * <SLV-T>  00h     D9h     [7:0]  8'h08      OTSCKPERIOD
927	 */
928	cxd2841er_write_reg(priv, I2C_SLVT, 0xd9, 0x08);
929	/*
930	 * Disable TS IF Clock
931	 * slave    Bank    Addr    Bit    default    Name
932	 * <SLV-T>  00h     32h     [0]    1'b1       OREG_CK_TSIF_EN
933	 */
934	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x32, 0x00, 0x01);
935	/*
936	 * slave    Bank    Addr    Bit    default    Name
937	 * <SLV-T>  00h     33h     [1:0]  2'b01      OREG_CKSEL_TSIF
938	 */
939	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x33,
940		((priv->flags & CXD2841ER_TS_SERIAL) ? 0x01 : 0x00), 0x03);
941	/*
942	 * Enable TS IF Clock
943	 * slave    Bank    Addr    Bit    default    Name
944	 * <SLV-T>  00h     32h     [0]    1'b1       OREG_CK_TSIF_EN
945	 */
946	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x32, 0x01, 0x01);
947
948	if (system == SYS_DVBT) {
949		/* Enable parity period for DVB-T */
950		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
951		cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x66, 0x01, 0x01);
952	} else if (system == SYS_DVBC_ANNEX_A) {
953		/* Enable parity period for DVB-C */
954		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
955		cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x66, 0x01, 0x01);
956	}
957}
958
959static u8 cxd2841er_chip_id(struct cxd2841er_priv *priv)
960{
961	u8 chip_id = 0;
962
963	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
964	if (cxd2841er_write_reg(priv, I2C_SLVT, 0, 0) == 0)
965		cxd2841er_read_reg(priv, I2C_SLVT, 0xfd, &chip_id);
966	else if (cxd2841er_write_reg(priv, I2C_SLVX, 0, 0) == 0)
967		cxd2841er_read_reg(priv, I2C_SLVX, 0xfd, &chip_id);
968
969	return chip_id;
970}
971
972static int cxd2841er_read_status_s(struct dvb_frontend *fe,
973				   enum fe_status *status)
974{
975	u8 reg = 0;
976	struct cxd2841er_priv *priv = fe->demodulator_priv;
977
978	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
979	*status = 0;
980	if (priv->state != STATE_ACTIVE_S) {
981		dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
982			__func__, priv->state);
983		return -EINVAL;
984	}
985	/* Set SLV-T Bank : 0xA0 */
986	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
987	/*
988	 *  slave     Bank      Addr      Bit      Signal name
989	 * <SLV-T>    A0h       11h       [2]      ITSLOCK
990	 */
991	cxd2841er_read_reg(priv, I2C_SLVT, 0x11, &reg);
992	if (reg & 0x04) {
993		*status = FE_HAS_SIGNAL
994			| FE_HAS_CARRIER
995			| FE_HAS_VITERBI
996			| FE_HAS_SYNC
997			| FE_HAS_LOCK;
998	}
999	dev_dbg(&priv->i2c->dev, "%s(): result 0x%x\n", __func__, *status);
1000	return 0;
1001}
1002
1003static int cxd2841er_read_status_t_t2(struct cxd2841er_priv *priv,
1004				      u8 *sync, u8 *tslock, u8 *unlock)
1005{
1006	u8 data = 0;
1007
1008	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1009	if (priv->state != STATE_ACTIVE_TC)
1010		return -EINVAL;
1011	if (priv->system == SYS_DVBT) {
1012		/* Set SLV-T Bank : 0x10 */
1013		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1014	} else {
1015		/* Set SLV-T Bank : 0x20 */
1016		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
1017	}
1018	cxd2841er_read_reg(priv, I2C_SLVT, 0x10, &data);
1019	if ((data & 0x07) == 0x07) {
1020		dev_dbg(&priv->i2c->dev,
1021			"%s(): invalid hardware state detected\n", __func__);
1022		*sync = 0;
1023		*tslock = 0;
1024		*unlock = 0;
1025	} else {
1026		*sync = ((data & 0x07) == 0x6 ? 1 : 0);
1027		*tslock = ((data & 0x20) ? 1 : 0);
1028		*unlock = ((data & 0x10) ? 1 : 0);
1029	}
1030	return 0;
1031}
1032
1033static int cxd2841er_read_status_c(struct cxd2841er_priv *priv, u8 *tslock)
1034{
1035	u8 data;
1036
1037	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1038	if (priv->state != STATE_ACTIVE_TC)
1039		return -EINVAL;
1040	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1041	cxd2841er_read_reg(priv, I2C_SLVT, 0x88, &data);
1042	if ((data & 0x01) == 0) {
1043		*tslock = 0;
1044	} else {
1045		cxd2841er_read_reg(priv, I2C_SLVT, 0x10, &data);
1046		*tslock = ((data & 0x20) ? 1 : 0);
1047	}
1048	return 0;
1049}
1050
1051static int cxd2841er_read_status_i(struct cxd2841er_priv *priv,
1052		u8 *sync, u8 *tslock, u8 *unlock)
1053{
1054	u8 data = 0;
1055
1056	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1057	if (priv->state != STATE_ACTIVE_TC)
1058		return -EINVAL;
1059	/* Set SLV-T Bank : 0x60 */
1060	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1061	cxd2841er_read_reg(priv, I2C_SLVT, 0x10, &data);
1062	dev_dbg(&priv->i2c->dev,
1063			"%s(): lock=0x%x\n", __func__, data);
1064	*sync = ((data & 0x02) ? 1 : 0);
1065	*tslock = ((data & 0x01) ? 1 : 0);
1066	*unlock = ((data & 0x10) ? 1 : 0);
1067	return 0;
1068}
1069
1070static int cxd2841er_read_status_tc(struct dvb_frontend *fe,
1071				    enum fe_status *status)
1072{
1073	int ret = 0;
1074	u8 sync = 0;
1075	u8 tslock = 0;
1076	u8 unlock = 0;
1077	struct cxd2841er_priv *priv = fe->demodulator_priv;
1078
1079	*status = 0;
1080	if (priv->state == STATE_ACTIVE_TC) {
1081		if (priv->system == SYS_DVBT || priv->system == SYS_DVBT2) {
1082			ret = cxd2841er_read_status_t_t2(
1083				priv, &sync, &tslock, &unlock);
1084			if (ret)
1085				goto done;
1086			if (unlock)
1087				goto done;
1088			if (sync)
1089				*status = FE_HAS_SIGNAL |
1090					FE_HAS_CARRIER |
1091					FE_HAS_VITERBI |
1092					FE_HAS_SYNC;
1093			if (tslock)
1094				*status |= FE_HAS_LOCK;
1095		} else if (priv->system == SYS_ISDBT) {
1096			ret = cxd2841er_read_status_i(
1097					priv, &sync, &tslock, &unlock);
1098			if (ret)
1099				goto done;
1100			if (unlock)
1101				goto done;
1102			if (sync)
1103				*status = FE_HAS_SIGNAL |
1104					FE_HAS_CARRIER |
1105					FE_HAS_VITERBI |
1106					FE_HAS_SYNC;
1107			if (tslock)
1108				*status |= FE_HAS_LOCK;
1109		} else if (priv->system == SYS_DVBC_ANNEX_A) {
1110			ret = cxd2841er_read_status_c(priv, &tslock);
1111			if (ret)
1112				goto done;
1113			if (tslock)
1114				*status = FE_HAS_SIGNAL |
1115					FE_HAS_CARRIER |
1116					FE_HAS_VITERBI |
1117					FE_HAS_SYNC |
1118					FE_HAS_LOCK;
1119		}
1120	}
1121done:
1122	dev_dbg(&priv->i2c->dev, "%s(): status 0x%x\n", __func__, *status);
1123	return ret;
1124}
1125
1126static int cxd2841er_get_carrier_offset_s_s2(struct cxd2841er_priv *priv,
1127					     int *offset)
1128{
1129	u8 data[3];
1130	u8 is_hs_mode;
1131	s32 cfrl_ctrlval;
1132	s32 temp_div, temp_q, temp_r;
1133
1134	if (priv->state != STATE_ACTIVE_S) {
1135		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1136			__func__, priv->state);
1137		return -EINVAL;
1138	}
1139	/*
1140	 * Get High Sampling Rate mode
1141	 *  slave     Bank      Addr      Bit      Signal name
1142	 * <SLV-T>    A0h       10h       [0]      ITRL_LOCK
1143	 */
1144	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
1145	cxd2841er_read_reg(priv, I2C_SLVT, 0x10, &data[0]);
1146	if (data[0] & 0x01) {
1147		/*
1148		 *  slave     Bank      Addr      Bit      Signal name
1149		 * <SLV-T>    A0h       50h       [4]      IHSMODE
1150		 */
1151		cxd2841er_read_reg(priv, I2C_SLVT, 0x50, &data[0]);
1152		is_hs_mode = (data[0] & 0x10 ? 1 : 0);
1153	} else {
1154		dev_dbg(&priv->i2c->dev,
1155			"%s(): unable to detect sampling rate mode\n",
1156			__func__);
1157		return -EINVAL;
1158	}
1159	/*
1160	 *  slave     Bank      Addr      Bit      Signal name
1161	 * <SLV-T>    A0h       45h       [4:0]    ICFRL_CTRLVAL[20:16]
1162	 * <SLV-T>    A0h       46h       [7:0]    ICFRL_CTRLVAL[15:8]
1163	 * <SLV-T>    A0h       47h       [7:0]    ICFRL_CTRLVAL[7:0]
1164	 */
1165	cxd2841er_read_regs(priv, I2C_SLVT, 0x45, data, 3);
1166	cfrl_ctrlval = sign_extend32((((u32)data[0] & 0x1F) << 16) |
1167				(((u32)data[1] & 0xFF) <<  8) |
1168				((u32)data[2] & 0xFF), 20);
1169	temp_div = (is_hs_mode ? 1048576 : 1572864);
1170	if (cfrl_ctrlval > 0) {
1171		temp_q = div_s64_rem(97375LL * cfrl_ctrlval,
1172			temp_div, &temp_r);
1173	} else {
1174		temp_q = div_s64_rem(-97375LL * cfrl_ctrlval,
1175			temp_div, &temp_r);
1176	}
1177	if (temp_r >= temp_div / 2)
1178		temp_q++;
1179	if (cfrl_ctrlval > 0)
1180		temp_q *= -1;
1181	*offset = temp_q;
1182	return 0;
1183}
1184
1185static int cxd2841er_get_carrier_offset_i(struct cxd2841er_priv *priv,
1186					   u32 bandwidth, int *offset)
1187{
1188	u8 data[4];
1189
1190	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1191	if (priv->state != STATE_ACTIVE_TC) {
1192		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1193			__func__, priv->state);
1194		return -EINVAL;
1195	}
1196	if (priv->system != SYS_ISDBT) {
1197		dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
1198			__func__, priv->system);
1199		return -EINVAL;
1200	}
1201	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1202	cxd2841er_read_regs(priv, I2C_SLVT, 0x4c, data, sizeof(data));
1203	*offset = -1 * sign_extend32(
1204		((u32)(data[0] & 0x1F) << 24) | ((u32)data[1] << 16) |
1205		((u32)data[2] << 8) | (u32)data[3], 29);
1206
1207	switch (bandwidth) {
1208	case 6000000:
1209		*offset = -1 * ((*offset) * 8/264);
1210		break;
1211	case 7000000:
1212		*offset = -1 * ((*offset) * 8/231);
1213		break;
1214	case 8000000:
1215		*offset = -1 * ((*offset) * 8/198);
1216		break;
1217	default:
1218		dev_dbg(&priv->i2c->dev, "%s(): invalid bandwidth %d\n",
1219				__func__, bandwidth);
1220		return -EINVAL;
1221	}
1222
1223	dev_dbg(&priv->i2c->dev, "%s(): bandwidth %d offset %d\n",
1224			__func__, bandwidth, *offset);
1225
1226	return 0;
1227}
1228
1229static int cxd2841er_get_carrier_offset_t(struct cxd2841er_priv *priv,
1230					   u32 bandwidth, int *offset)
1231{
1232	u8 data[4];
1233
1234	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1235	if (priv->state != STATE_ACTIVE_TC) {
1236		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1237			__func__, priv->state);
1238		return -EINVAL;
1239	}
1240	if (priv->system != SYS_DVBT) {
1241		dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
1242			__func__, priv->system);
1243		return -EINVAL;
1244	}
1245	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1246	cxd2841er_read_regs(priv, I2C_SLVT, 0x4c, data, sizeof(data));
1247	*offset = -1 * sign_extend32(
1248		((u32)(data[0] & 0x1F) << 24) | ((u32)data[1] << 16) |
1249		((u32)data[2] << 8) | (u32)data[3], 29);
1250	*offset *= (bandwidth / 1000000);
1251	*offset /= 235;
1252	return 0;
1253}
1254
1255static int cxd2841er_get_carrier_offset_t2(struct cxd2841er_priv *priv,
1256					   u32 bandwidth, int *offset)
1257{
1258	u8 data[4];
1259
1260	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1261	if (priv->state != STATE_ACTIVE_TC) {
1262		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1263			__func__, priv->state);
1264		return -EINVAL;
1265	}
1266	if (priv->system != SYS_DVBT2) {
1267		dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
1268			__func__, priv->system);
1269		return -EINVAL;
1270	}
1271	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
1272	cxd2841er_read_regs(priv, I2C_SLVT, 0x4c, data, sizeof(data));
1273	*offset = -1 * sign_extend32(
1274		((u32)(data[0] & 0x0F) << 24) | ((u32)data[1] << 16) |
1275		((u32)data[2] << 8) | (u32)data[3], 27);
1276	switch (bandwidth) {
1277	case 1712000:
1278		*offset /= 582;
1279		break;
1280	case 5000000:
1281	case 6000000:
1282	case 7000000:
1283	case 8000000:
1284		*offset *= (bandwidth / 1000000);
1285		*offset /= 940;
1286		break;
1287	default:
1288		dev_dbg(&priv->i2c->dev, "%s(): invalid bandwidth %d\n",
1289			__func__, bandwidth);
1290		return -EINVAL;
1291	}
1292	return 0;
1293}
1294
1295static int cxd2841er_get_carrier_offset_c(struct cxd2841er_priv *priv,
1296					  int *offset)
1297{
1298	u8 data[2];
1299
1300	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1301	if (priv->state != STATE_ACTIVE_TC) {
1302		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1303			__func__, priv->state);
1304		return -EINVAL;
1305	}
1306	if (priv->system != SYS_DVBC_ANNEX_A) {
1307		dev_dbg(&priv->i2c->dev, "%s(): invalid delivery system %d\n",
1308			__func__, priv->system);
1309		return -EINVAL;
1310	}
1311	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1312	cxd2841er_read_regs(priv, I2C_SLVT, 0x15, data, sizeof(data));
1313	*offset = div_s64(41000LL * sign_extend32((((u32)data[0] & 0x3f) << 8)
1314						| (u32)data[1], 13), 16384);
1315	return 0;
1316}
1317
1318static int cxd2841er_read_packet_errors_c(
1319		struct cxd2841er_priv *priv, u32 *penum)
1320{
1321	u8 data[3];
1322
1323	*penum = 0;
1324	if (priv->state != STATE_ACTIVE_TC) {
1325		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1326				__func__, priv->state);
1327		return -EINVAL;
1328	}
1329	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1330	cxd2841er_read_regs(priv, I2C_SLVT, 0xea, data, sizeof(data));
1331	if (data[2] & 0x01)
1332		*penum = ((u32)data[0] << 8) | (u32)data[1];
1333	return 0;
1334}
1335
1336static int cxd2841er_read_packet_errors_t(
1337		struct cxd2841er_priv *priv, u32 *penum)
1338{
1339	u8 data[3];
1340
1341	*penum = 0;
1342	if (priv->state != STATE_ACTIVE_TC) {
1343		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1344			__func__, priv->state);
1345		return -EINVAL;
1346	}
1347	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1348	cxd2841er_read_regs(priv, I2C_SLVT, 0xea, data, sizeof(data));
1349	if (data[2] & 0x01)
1350		*penum = ((u32)data[0] << 8) | (u32)data[1];
1351	return 0;
1352}
1353
1354static int cxd2841er_read_packet_errors_t2(
1355		struct cxd2841er_priv *priv, u32 *penum)
1356{
1357	u8 data[3];
1358
1359	*penum = 0;
1360	if (priv->state != STATE_ACTIVE_TC) {
1361		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1362			__func__, priv->state);
1363		return -EINVAL;
1364	}
1365	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x24);
1366	cxd2841er_read_regs(priv, I2C_SLVT, 0xfd, data, sizeof(data));
1367	if (data[0] & 0x01)
1368		*penum = ((u32)data[1] << 8) | (u32)data[2];
1369	return 0;
1370}
1371
1372static int cxd2841er_read_packet_errors_i(
1373		struct cxd2841er_priv *priv, u32 *penum)
1374{
1375	u8 data[2];
1376
1377	*penum = 0;
1378	if (priv->state != STATE_ACTIVE_TC) {
1379		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1380				__func__, priv->state);
1381		return -EINVAL;
1382	}
1383	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1384	cxd2841er_read_regs(priv, I2C_SLVT, 0xA1, data, 1);
1385
1386	if (!(data[0] & 0x01))
1387		return 0;
1388
1389	/* Layer A */
1390	cxd2841er_read_regs(priv, I2C_SLVT, 0xA2, data, sizeof(data));
1391	*penum = ((u32)data[0] << 8) | (u32)data[1];
1392
1393	/* Layer B */
1394	cxd2841er_read_regs(priv, I2C_SLVT, 0xA4, data, sizeof(data));
1395	*penum += ((u32)data[0] << 8) | (u32)data[1];
1396
1397	/* Layer C */
1398	cxd2841er_read_regs(priv, I2C_SLVT, 0xA6, data, sizeof(data));
1399	*penum += ((u32)data[0] << 8) | (u32)data[1];
1400
1401	return 0;
1402}
1403
1404static int cxd2841er_read_ber_c(struct cxd2841er_priv *priv,
1405		u32 *bit_error, u32 *bit_count)
1406{
1407	u8 data[3];
1408	u32 bit_err, period_exp;
1409
1410	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1411	if (priv->state != STATE_ACTIVE_TC) {
1412		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1413				__func__, priv->state);
1414		return -EINVAL;
1415	}
1416	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1417	cxd2841er_read_regs(priv, I2C_SLVT, 0x62, data, sizeof(data));
1418	if (!(data[0] & 0x80)) {
1419		dev_dbg(&priv->i2c->dev,
1420				"%s(): no valid BER data\n", __func__);
1421		return -EINVAL;
1422	}
1423	bit_err = ((u32)(data[0] & 0x3f) << 16) |
1424		((u32)data[1] << 8) |
1425		(u32)data[2];
1426	cxd2841er_read_reg(priv, I2C_SLVT, 0x60, data);
1427	period_exp = data[0] & 0x1f;
1428
1429	if ((period_exp <= 11) && (bit_err > (1 << period_exp) * 204 * 8)) {
1430		dev_dbg(&priv->i2c->dev,
1431				"%s(): period_exp(%u) or bit_err(%u)  not in range. no valid BER data\n",
1432				__func__, period_exp, bit_err);
1433		return -EINVAL;
1434	}
1435
1436	dev_dbg(&priv->i2c->dev,
1437			"%s(): period_exp(%u) or bit_err(%u) count=%d\n",
1438			__func__, period_exp, bit_err,
1439			((1 << period_exp) * 204 * 8));
1440
1441	*bit_error = bit_err;
1442	*bit_count = ((1 << period_exp) * 204 * 8);
1443
1444	return 0;
1445}
1446
1447static int cxd2841er_read_ber_i(struct cxd2841er_priv *priv,
1448		u32 *bit_error, u32 *bit_count)
1449{
1450	u8 data[3];
1451	u8 pktnum[2];
1452
1453	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1454	if (priv->state != STATE_ACTIVE_TC) {
1455		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
1456				__func__, priv->state);
1457		return -EINVAL;
1458	}
1459
1460	cxd2841er_freeze_regs(priv);
1461	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1462	cxd2841er_read_regs(priv, I2C_SLVT, 0x5B, pktnum, sizeof(pktnum));
1463	cxd2841er_read_regs(priv, I2C_SLVT, 0x16, data, sizeof(data));
1464	cxd2841er_unfreeze_regs(priv);
1465
1466	if (!pktnum[0] && !pktnum[1]) {
1467		dev_dbg(&priv->i2c->dev,
1468				"%s(): no valid BER data\n", __func__);
1469		return -EINVAL;
1470	}
1471
1472	*bit_error = ((u32)(data[0] & 0x7F) << 16) |
1473		((u32)data[1] << 8) | data[2];
1474	*bit_count = ((((u32)pktnum[0] << 8) | pktnum[1]) * 204 * 8);
1475	dev_dbg(&priv->i2c->dev, "%s(): bit_error=%u bit_count=%u\n",
1476			__func__, *bit_error, *bit_count);
1477
1478	return 0;
1479}
1480
1481static int cxd2841er_mon_read_ber_s(struct cxd2841er_priv *priv,
1482				    u32 *bit_error, u32 *bit_count)
1483{
1484	u8 data[11];
1485
1486	/* Set SLV-T Bank : 0xA0 */
1487	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
1488	/*
1489	 *  slave     Bank      Addr      Bit      Signal name
1490	 * <SLV-T>    A0h       35h       [0]      IFVBER_VALID
1491	 * <SLV-T>    A0h       36h       [5:0]    IFVBER_BITERR[21:16]
1492	 * <SLV-T>    A0h       37h       [7:0]    IFVBER_BITERR[15:8]
1493	 * <SLV-T>    A0h       38h       [7:0]    IFVBER_BITERR[7:0]
1494	 * <SLV-T>    A0h       3Dh       [5:0]    IFVBER_BITNUM[21:16]
1495	 * <SLV-T>    A0h       3Eh       [7:0]    IFVBER_BITNUM[15:8]
1496	 * <SLV-T>    A0h       3Fh       [7:0]    IFVBER_BITNUM[7:0]
1497	 */
1498	cxd2841er_read_regs(priv, I2C_SLVT, 0x35, data, 11);
1499	if (data[0] & 0x01) {
1500		*bit_error = ((u32)(data[1]  & 0x3F) << 16) |
1501			     ((u32)(data[2]  & 0xFF) <<  8) |
1502			     (u32)(data[3]  & 0xFF);
1503		*bit_count = ((u32)(data[8]  & 0x3F) << 16) |
1504			     ((u32)(data[9]  & 0xFF) <<  8) |
1505			     (u32)(data[10] & 0xFF);
1506		if ((*bit_count == 0) || (*bit_error > *bit_count)) {
1507			dev_dbg(&priv->i2c->dev,
1508				"%s(): invalid bit_error %d, bit_count %d\n",
1509				__func__, *bit_error, *bit_count);
1510			return -EINVAL;
1511		}
1512		return 0;
1513	}
1514	dev_dbg(&priv->i2c->dev, "%s(): no data available\n", __func__);
1515	return -EINVAL;
1516}
1517
1518
1519static int cxd2841er_mon_read_ber_s2(struct cxd2841er_priv *priv,
1520				     u32 *bit_error, u32 *bit_count)
1521{
1522	u8 data[5];
1523	u32 period;
1524
1525	/* Set SLV-T Bank : 0xB2 */
1526	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xb2);
1527	/*
1528	 *  slave     Bank      Addr      Bit      Signal name
1529	 * <SLV-T>    B2h       30h       [0]      IFLBER_VALID
1530	 * <SLV-T>    B2h       31h       [3:0]    IFLBER_BITERR[27:24]
1531	 * <SLV-T>    B2h       32h       [7:0]    IFLBER_BITERR[23:16]
1532	 * <SLV-T>    B2h       33h       [7:0]    IFLBER_BITERR[15:8]
1533	 * <SLV-T>    B2h       34h       [7:0]    IFLBER_BITERR[7:0]
1534	 */
1535	cxd2841er_read_regs(priv, I2C_SLVT, 0x30, data, 5);
1536	if (data[0] & 0x01) {
1537		/* Bit error count */
1538		*bit_error = ((u32)(data[1] & 0x0F) << 24) |
1539			     ((u32)(data[2] & 0xFF) << 16) |
1540			     ((u32)(data[3] & 0xFF) <<  8) |
1541			     (u32)(data[4] & 0xFF);
1542
1543		/* Set SLV-T Bank : 0xA0 */
1544		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
1545		cxd2841er_read_reg(priv, I2C_SLVT, 0x7a, data);
1546		/* Measurement period */
1547		period = (u32)(1 << (data[0] & 0x0F));
1548		if (period == 0) {
1549			dev_dbg(&priv->i2c->dev,
1550				"%s(): period is 0\n", __func__);
1551			return -EINVAL;
1552		}
1553		if (*bit_error > (period * 64800)) {
1554			dev_dbg(&priv->i2c->dev,
1555				"%s(): invalid bit_err 0x%x period 0x%x\n",
1556				__func__, *bit_error, period);
1557			return -EINVAL;
1558		}
1559		*bit_count = period * 64800;
1560
1561		return 0;
1562	} else {
1563		dev_dbg(&priv->i2c->dev,
1564			"%s(): no data available\n", __func__);
1565	}
1566	return -EINVAL;
1567}
1568
1569static int cxd2841er_read_ber_t2(struct cxd2841er_priv *priv,
1570				 u32 *bit_error, u32 *bit_count)
1571{
1572	u8 data[4];
1573	u32 period_exp, n_ldpc;
1574
1575	if (priv->state != STATE_ACTIVE_TC) {
1576		dev_dbg(&priv->i2c->dev,
1577			"%s(): invalid state %d\n", __func__, priv->state);
1578		return -EINVAL;
1579	}
1580	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
1581	cxd2841er_read_regs(priv, I2C_SLVT, 0x39, data, sizeof(data));
1582	if (!(data[0] & 0x10)) {
1583		dev_dbg(&priv->i2c->dev,
1584			"%s(): no valid BER data\n", __func__);
1585		return -EINVAL;
1586	}
1587	*bit_error = ((u32)(data[0] & 0x0f) << 24) |
1588		     ((u32)data[1] << 16) |
1589		     ((u32)data[2] << 8) |
1590		     (u32)data[3];
1591	cxd2841er_read_reg(priv, I2C_SLVT, 0x6f, data);
1592	period_exp = data[0] & 0x0f;
1593	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x22);
1594	cxd2841er_read_reg(priv, I2C_SLVT, 0x5e, data);
1595	n_ldpc = ((data[0] & 0x03) == 0 ? 16200 : 64800);
1596	if (*bit_error > ((1U << period_exp) * n_ldpc)) {
1597		dev_dbg(&priv->i2c->dev,
1598			"%s(): invalid BER value\n", __func__);
1599		return -EINVAL;
1600	}
1601
1602	/*
1603	 * FIXME: the right thing would be to return bit_error untouched,
1604	 * but, as we don't know the scale returned by the counters, let's
1605	 * at least preserver BER = bit_error/bit_count.
1606	 */
1607	if (period_exp >= 4) {
1608		*bit_count = (1U << (period_exp - 4)) * (n_ldpc / 200);
1609		*bit_error *= 3125ULL;
1610	} else {
1611		*bit_count = (1U << period_exp) * (n_ldpc / 200);
1612		*bit_error *= 50000ULL;
1613	}
1614	return 0;
1615}
1616
1617static int cxd2841er_read_ber_t(struct cxd2841er_priv *priv,
1618				u32 *bit_error, u32 *bit_count)
1619{
1620	u8 data[2];
1621	u32 period;
1622
1623	if (priv->state != STATE_ACTIVE_TC) {
1624		dev_dbg(&priv->i2c->dev,
1625			"%s(): invalid state %d\n", __func__, priv->state);
1626		return -EINVAL;
1627	}
1628	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1629	cxd2841er_read_reg(priv, I2C_SLVT, 0x39, data);
1630	if (!(data[0] & 0x01)) {
1631		dev_dbg(&priv->i2c->dev,
1632			"%s(): no valid BER data\n", __func__);
1633		return 0;
1634	}
1635	cxd2841er_read_regs(priv, I2C_SLVT, 0x22, data, sizeof(data));
1636	*bit_error = ((u32)data[0] << 8) | (u32)data[1];
1637	cxd2841er_read_reg(priv, I2C_SLVT, 0x6f, data);
1638	period = ((data[0] & 0x07) == 0) ? 256 : (4096 << (data[0] & 0x07));
1639
1640	/*
1641	 * FIXME: the right thing would be to return bit_error untouched,
1642	 * but, as we don't know the scale returned by the counters, let's
1643	 * at least preserver BER = bit_error/bit_count.
1644	 */
1645	*bit_count = period / 128;
1646	*bit_error *= 78125ULL;
1647	return 0;
1648}
1649
1650static int cxd2841er_freeze_regs(struct cxd2841er_priv *priv)
1651{
1652	/*
1653	 * Freeze registers: ensure multiple separate register reads
1654	 * are from the same snapshot
1655	 */
1656	cxd2841er_write_reg(priv, I2C_SLVT, 0x01, 0x01);
1657	return 0;
1658}
1659
1660static int cxd2841er_unfreeze_regs(struct cxd2841er_priv *priv)
1661{
1662	/*
1663	 * un-freeze registers
1664	 */
1665	cxd2841er_write_reg(priv, I2C_SLVT, 0x01, 0x00);
1666	return 0;
1667}
1668
1669static u32 cxd2841er_dvbs_read_snr(struct cxd2841er_priv *priv,
1670		u8 delsys, u32 *snr)
1671{
1672	u8 data[3];
1673	u32 res = 0, value;
1674	int min_index, max_index, index;
1675	static const struct cxd2841er_cnr_data *cn_data;
1676
1677	cxd2841er_freeze_regs(priv);
1678	/* Set SLV-T Bank : 0xA1 */
1679	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa1);
1680	/*
1681	 *  slave     Bank      Addr      Bit     Signal name
1682	 * <SLV-T>    A1h       10h       [0]     ICPM_QUICKRDY
1683	 * <SLV-T>    A1h       11h       [4:0]   ICPM_QUICKCNDT[12:8]
1684	 * <SLV-T>    A1h       12h       [7:0]   ICPM_QUICKCNDT[7:0]
1685	 */
1686	cxd2841er_read_regs(priv, I2C_SLVT, 0x10, data, 3);
1687	cxd2841er_unfreeze_regs(priv);
1688
1689	if (data[0] & 0x01) {
1690		value = ((u32)(data[1] & 0x1F) << 8) | (u32)(data[2] & 0xFF);
1691		min_index = 0;
1692		if (delsys == SYS_DVBS) {
1693			cn_data = s_cn_data;
1694			max_index = ARRAY_SIZE(s_cn_data) - 1;
1695		} else {
1696			cn_data = s2_cn_data;
1697			max_index = ARRAY_SIZE(s2_cn_data) - 1;
1698		}
1699		if (value >= cn_data[min_index].value) {
1700			res = cn_data[min_index].cnr_x1000;
1701			goto done;
1702		}
1703		if (value <= cn_data[max_index].value) {
1704			res = cn_data[max_index].cnr_x1000;
1705			goto done;
1706		}
1707		while ((max_index - min_index) > 1) {
1708			index = (max_index + min_index) / 2;
1709			if (value == cn_data[index].value) {
1710				res = cn_data[index].cnr_x1000;
1711				goto done;
1712			} else if (value > cn_data[index].value)
1713				max_index = index;
1714			else
1715				min_index = index;
1716			if ((max_index - min_index) <= 1) {
1717				if (value == cn_data[max_index].value) {
1718					res = cn_data[max_index].cnr_x1000;
1719					goto done;
1720				} else {
1721					res = cn_data[min_index].cnr_x1000;
1722					goto done;
1723				}
1724			}
1725		}
1726	} else {
1727		dev_dbg(&priv->i2c->dev,
1728			"%s(): no data available\n", __func__);
1729		return -EINVAL;
1730	}
1731done:
1732	*snr = res;
1733	return 0;
1734}
1735
1736static uint32_t sony_log(uint32_t x)
1737{
1738	return (((10000>>8)*(intlog2(x)>>16) + LOG2_E_100X/2)/LOG2_E_100X);
1739}
1740
1741static int cxd2841er_read_snr_c(struct cxd2841er_priv *priv, u32 *snr)
1742{
1743	u32 reg;
1744	u8 data[2];
1745	enum sony_dvbc_constellation_t qam = SONY_DVBC_CONSTELLATION_16QAM;
1746
1747	*snr = 0;
1748	if (priv->state != STATE_ACTIVE_TC) {
1749		dev_dbg(&priv->i2c->dev,
1750				"%s(): invalid state %d\n",
1751				__func__, priv->state);
1752		return -EINVAL;
1753	}
1754
1755	cxd2841er_freeze_regs(priv);
1756	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
1757	cxd2841er_read_regs(priv, I2C_SLVT, 0x19, data, 1);
1758	qam = (enum sony_dvbc_constellation_t) (data[0] & 0x07);
1759	cxd2841er_read_regs(priv, I2C_SLVT, 0x4C, data, 2);
1760	cxd2841er_unfreeze_regs(priv);
1761
1762	reg = ((u32)(data[0]&0x1f) << 8) | (u32)data[1];
1763	if (reg == 0) {
1764		dev_dbg(&priv->i2c->dev,
1765				"%s(): reg value out of range\n", __func__);
1766		return 0;
1767	}
1768
1769	switch (qam) {
1770	case SONY_DVBC_CONSTELLATION_16QAM:
1771	case SONY_DVBC_CONSTELLATION_64QAM:
1772	case SONY_DVBC_CONSTELLATION_256QAM:
1773		/* SNR(dB) = -9.50 * ln(IREG_SNR_ESTIMATE / (24320)) */
1774		if (reg < 126)
1775			reg = 126;
1776		*snr = -95 * (int32_t)sony_log(reg) + 95941;
1777		break;
1778	case SONY_DVBC_CONSTELLATION_32QAM:
1779	case SONY_DVBC_CONSTELLATION_128QAM:
1780		/* SNR(dB) = -8.75 * ln(IREG_SNR_ESTIMATE / (20800)) */
1781		if (reg < 69)
1782			reg = 69;
1783		*snr = -88 * (int32_t)sony_log(reg) + 86999;
1784		break;
1785	default:
1786		return -EINVAL;
1787	}
1788
1789	return 0;
1790}
1791
1792static int cxd2841er_read_snr_t(struct cxd2841er_priv *priv, u32 *snr)
1793{
1794	u32 reg;
1795	u8 data[2];
1796
1797	*snr = 0;
1798	if (priv->state != STATE_ACTIVE_TC) {
1799		dev_dbg(&priv->i2c->dev,
1800			"%s(): invalid state %d\n", __func__, priv->state);
1801		return -EINVAL;
1802	}
1803
1804	cxd2841er_freeze_regs(priv);
1805	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
1806	cxd2841er_read_regs(priv, I2C_SLVT, 0x28, data, sizeof(data));
1807	cxd2841er_unfreeze_regs(priv);
1808
1809	reg = ((u32)data[0] << 8) | (u32)data[1];
1810	if (reg == 0) {
1811		dev_dbg(&priv->i2c->dev,
1812			"%s(): reg value out of range\n", __func__);
1813		return 0;
1814	}
1815	if (reg > 4996)
1816		reg = 4996;
1817	*snr = 100 * ((INTLOG10X100(reg) - INTLOG10X100(5350 - reg)) + 285);
1818	return 0;
1819}
1820
1821static int cxd2841er_read_snr_t2(struct cxd2841er_priv *priv, u32 *snr)
1822{
1823	u32 reg;
1824	u8 data[2];
1825
1826	*snr = 0;
1827	if (priv->state != STATE_ACTIVE_TC) {
1828		dev_dbg(&priv->i2c->dev,
1829			"%s(): invalid state %d\n", __func__, priv->state);
1830		return -EINVAL;
1831	}
1832
1833	cxd2841er_freeze_regs(priv);
1834	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
1835	cxd2841er_read_regs(priv, I2C_SLVT, 0x28, data, sizeof(data));
1836	cxd2841er_unfreeze_regs(priv);
1837
1838	reg = ((u32)data[0] << 8) | (u32)data[1];
1839	if (reg == 0) {
1840		dev_dbg(&priv->i2c->dev,
1841			"%s(): reg value out of range\n", __func__);
1842		return 0;
1843	}
1844	if (reg > 10876)
1845		reg = 10876;
1846	*snr = 100 * ((INTLOG10X100(reg) - INTLOG10X100(12600 - reg)) + 320);
1847	return 0;
1848}
1849
1850static int cxd2841er_read_snr_i(struct cxd2841er_priv *priv, u32 *snr)
1851{
1852	u32 reg;
1853	u8 data[2];
1854
1855	*snr = 0;
1856	if (priv->state != STATE_ACTIVE_TC) {
1857		dev_dbg(&priv->i2c->dev,
1858				"%s(): invalid state %d\n", __func__,
1859				priv->state);
1860		return -EINVAL;
1861	}
1862
1863	cxd2841er_freeze_regs(priv);
1864	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
1865	cxd2841er_read_regs(priv, I2C_SLVT, 0x28, data, sizeof(data));
1866	cxd2841er_unfreeze_regs(priv);
1867
1868	reg = ((u32)data[0] << 8) | (u32)data[1];
1869	if (reg == 0) {
1870		dev_dbg(&priv->i2c->dev,
1871				"%s(): reg value out of range\n", __func__);
1872		return 0;
1873	}
1874	*snr = 10000 * (intlog10(reg) >> 24) - 9031;
1875	return 0;
1876}
1877
1878static u16 cxd2841er_read_agc_gain_c(struct cxd2841er_priv *priv,
1879					u8 delsys)
1880{
1881	u8 data[2];
1882
1883	cxd2841er_write_reg(
1884		priv, I2C_SLVT, 0x00, 0x40);
1885	cxd2841er_read_regs(priv, I2C_SLVT, 0x49, data, 2);
1886	dev_dbg(&priv->i2c->dev,
1887			"%s(): AGC value=%u\n",
1888			__func__, (((u16)data[0] & 0x0F) << 8) |
1889			(u16)(data[1] & 0xFF));
1890	return ((((u16)data[0] & 0x0F) << 8) | (u16)(data[1] & 0xFF)) << 4;
1891}
1892
1893static u16 cxd2841er_read_agc_gain_t_t2(struct cxd2841er_priv *priv,
1894					u8 delsys)
1895{
1896	u8 data[2];
1897
1898	cxd2841er_write_reg(
1899		priv, I2C_SLVT, 0x00, (delsys == SYS_DVBT ? 0x10 : 0x20));
1900	cxd2841er_read_regs(priv, I2C_SLVT, 0x26, data, 2);
1901	dev_dbg(&priv->i2c->dev,
1902			"%s(): AGC value=%u\n",
1903			__func__, (((u16)data[0] & 0x0F) << 8) |
1904			(u16)(data[1] & 0xFF));
1905	return ((((u16)data[0] & 0x0F) << 8) | (u16)(data[1] & 0xFF)) << 4;
1906}
1907
1908static u16 cxd2841er_read_agc_gain_i(struct cxd2841er_priv *priv,
1909		u8 delsys)
1910{
1911	u8 data[2];
1912
1913	cxd2841er_write_reg(
1914			priv, I2C_SLVT, 0x00, 0x60);
1915	cxd2841er_read_regs(priv, I2C_SLVT, 0x26, data, 2);
1916
1917	dev_dbg(&priv->i2c->dev,
1918			"%s(): AGC value=%u\n",
1919			__func__, (((u16)data[0] & 0x0F) << 8) |
1920			(u16)(data[1] & 0xFF));
1921	return ((((u16)data[0] & 0x0F) << 8) | (u16)(data[1] & 0xFF)) << 4;
1922}
1923
1924static u16 cxd2841er_read_agc_gain_s(struct cxd2841er_priv *priv)
1925{
1926	u8 data[2];
1927
1928	/* Set SLV-T Bank : 0xA0 */
1929	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
1930	/*
1931	 *  slave     Bank      Addr      Bit       Signal name
1932	 * <SLV-T>    A0h       1Fh       [4:0]     IRFAGC_GAIN[12:8]
1933	 * <SLV-T>    A0h       20h       [7:0]     IRFAGC_GAIN[7:0]
1934	 */
1935	cxd2841er_read_regs(priv, I2C_SLVT, 0x1f, data, 2);
1936	return ((((u16)data[0] & 0x1F) << 8) | (u16)(data[1] & 0xFF)) << 3;
1937}
1938
1939static void cxd2841er_read_ber(struct dvb_frontend *fe)
1940{
1941	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1942	struct cxd2841er_priv *priv = fe->demodulator_priv;
1943	u32 ret, bit_error = 0, bit_count = 0;
1944
1945	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1946	switch (p->delivery_system) {
1947	case SYS_DVBC_ANNEX_A:
1948	case SYS_DVBC_ANNEX_B:
1949	case SYS_DVBC_ANNEX_C:
1950		ret = cxd2841er_read_ber_c(priv, &bit_error, &bit_count);
1951		break;
1952	case SYS_ISDBT:
1953		ret = cxd2841er_read_ber_i(priv, &bit_error, &bit_count);
1954		break;
1955	case SYS_DVBS:
1956		ret = cxd2841er_mon_read_ber_s(priv, &bit_error, &bit_count);
1957		break;
1958	case SYS_DVBS2:
1959		ret = cxd2841er_mon_read_ber_s2(priv, &bit_error, &bit_count);
1960		break;
1961	case SYS_DVBT:
1962		ret = cxd2841er_read_ber_t(priv, &bit_error, &bit_count);
1963		break;
1964	case SYS_DVBT2:
1965		ret = cxd2841er_read_ber_t2(priv, &bit_error, &bit_count);
1966		break;
1967	default:
1968		p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1969		p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1970		return;
1971	}
1972
1973	if (!ret) {
1974		p->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
1975		p->post_bit_error.stat[0].uvalue += bit_error;
1976		p->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
1977		p->post_bit_count.stat[0].uvalue += bit_count;
1978	} else {
1979		p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1980		p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
1981	}
1982}
1983
1984static void cxd2841er_read_signal_strength(struct dvb_frontend *fe)
1985{
1986	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
1987	struct cxd2841er_priv *priv = fe->demodulator_priv;
1988	s32 strength;
1989
1990	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
1991	switch (p->delivery_system) {
1992	case SYS_DVBT:
1993	case SYS_DVBT2:
1994		strength = cxd2841er_read_agc_gain_t_t2(priv,
1995							p->delivery_system);
1996		p->strength.stat[0].scale = FE_SCALE_DECIBEL;
1997		/* Formula was empirically determinated @ 410 MHz */
1998		p->strength.stat[0].uvalue = strength * 366 / 100 - 89520;
1999		break;	/* Code moved out of the function */
2000	case SYS_DVBC_ANNEX_A:
2001	case SYS_DVBC_ANNEX_B:
2002	case SYS_DVBC_ANNEX_C:
2003		strength = cxd2841er_read_agc_gain_c(priv,
2004							p->delivery_system);
2005		p->strength.stat[0].scale = FE_SCALE_DECIBEL;
2006		/*
2007		 * Formula was empirically determinated via linear regression,
2008		 * using frequencies: 175 MHz, 410 MHz and 800 MHz, and a
2009		 * stream modulated with QAM64
2010		 */
2011		p->strength.stat[0].uvalue = strength * 4045 / 1000 - 85224;
2012		break;
2013	case SYS_ISDBT:
2014		strength = cxd2841er_read_agc_gain_i(priv, p->delivery_system);
2015		p->strength.stat[0].scale = FE_SCALE_DECIBEL;
2016		/*
2017		 * Formula was empirically determinated via linear regression,
2018		 * using frequencies: 175 MHz, 410 MHz and 800 MHz.
2019		 */
2020		p->strength.stat[0].uvalue = strength * 3775 / 1000 - 90185;
2021		break;
2022	case SYS_DVBS:
2023	case SYS_DVBS2:
2024		strength = 65535 - cxd2841er_read_agc_gain_s(priv);
2025		p->strength.stat[0].scale = FE_SCALE_RELATIVE;
2026		p->strength.stat[0].uvalue = strength;
2027		break;
2028	default:
2029		p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
2030		break;
2031	}
2032}
2033
2034static void cxd2841er_read_snr(struct dvb_frontend *fe)
2035{
2036	u32 tmp = 0;
2037	int ret = 0;
2038	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
2039	struct cxd2841er_priv *priv = fe->demodulator_priv;
2040
2041	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2042	switch (p->delivery_system) {
2043	case SYS_DVBC_ANNEX_A:
2044	case SYS_DVBC_ANNEX_B:
2045	case SYS_DVBC_ANNEX_C:
2046		ret = cxd2841er_read_snr_c(priv, &tmp);
2047		break;
2048	case SYS_DVBT:
2049		ret = cxd2841er_read_snr_t(priv, &tmp);
2050		break;
2051	case SYS_DVBT2:
2052		ret = cxd2841er_read_snr_t2(priv, &tmp);
2053		break;
2054	case SYS_ISDBT:
2055		ret = cxd2841er_read_snr_i(priv, &tmp);
2056		break;
2057	case SYS_DVBS:
2058	case SYS_DVBS2:
2059		ret = cxd2841er_dvbs_read_snr(priv, p->delivery_system, &tmp);
2060		break;
2061	default:
2062		dev_dbg(&priv->i2c->dev, "%s(): unknown delivery system %d\n",
2063			__func__, p->delivery_system);
2064		p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
2065		return;
2066	}
2067
2068	dev_dbg(&priv->i2c->dev, "%s(): snr=%d\n",
2069			__func__, (int32_t)tmp);
2070
2071	if (!ret) {
2072		p->cnr.stat[0].scale = FE_SCALE_DECIBEL;
2073		p->cnr.stat[0].svalue = tmp;
2074	} else {
2075		p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
2076	}
2077}
2078
2079static void cxd2841er_read_ucblocks(struct dvb_frontend *fe)
2080{
2081	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
2082	struct cxd2841er_priv *priv = fe->demodulator_priv;
2083	u32 ucblocks = 0;
2084
2085	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2086	switch (p->delivery_system) {
2087	case SYS_DVBC_ANNEX_A:
2088	case SYS_DVBC_ANNEX_B:
2089	case SYS_DVBC_ANNEX_C:
2090		cxd2841er_read_packet_errors_c(priv, &ucblocks);
2091		break;
2092	case SYS_DVBT:
2093		cxd2841er_read_packet_errors_t(priv, &ucblocks);
2094		break;
2095	case SYS_DVBT2:
2096		cxd2841er_read_packet_errors_t2(priv, &ucblocks);
2097		break;
2098	case SYS_ISDBT:
2099		cxd2841er_read_packet_errors_i(priv, &ucblocks);
2100		break;
2101	default:
2102		p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
2103		return;
2104	}
2105	dev_dbg(&priv->i2c->dev, "%s() ucblocks=%u\n", __func__, ucblocks);
2106
2107	p->block_error.stat[0].scale = FE_SCALE_COUNTER;
2108	p->block_error.stat[0].uvalue = ucblocks;
2109}
2110
2111static int cxd2841er_dvbt2_set_profile(
2112	struct cxd2841er_priv *priv, enum cxd2841er_dvbt2_profile_t profile)
2113{
2114	u8 tune_mode;
2115	u8 seq_not2d_time;
2116
2117	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2118	switch (profile) {
2119	case DVBT2_PROFILE_BASE:
2120		tune_mode = 0x01;
2121		/* Set early unlock time */
2122		seq_not2d_time = (priv->xtal == SONY_XTAL_24000)?0x0E:0x0C;
2123		break;
2124	case DVBT2_PROFILE_LITE:
2125		tune_mode = 0x05;
2126		/* Set early unlock time */
2127		seq_not2d_time = (priv->xtal == SONY_XTAL_24000)?0x2E:0x28;
2128		break;
2129	case DVBT2_PROFILE_ANY:
2130		tune_mode = 0x00;
2131		/* Set early unlock time */
2132		seq_not2d_time = (priv->xtal == SONY_XTAL_24000)?0x2E:0x28;
2133		break;
2134	default:
2135		return -EINVAL;
2136	}
2137	/* Set SLV-T Bank : 0x2E */
2138	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2e);
2139	/* Set profile and tune mode */
2140	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x10, tune_mode, 0x07);
2141	/* Set SLV-T Bank : 0x2B */
2142	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2b);
2143	/* Set early unlock detection time */
2144	cxd2841er_write_reg(priv, I2C_SLVT, 0x9d, seq_not2d_time);
2145	return 0;
2146}
2147
2148static int cxd2841er_dvbt2_set_plp_config(struct cxd2841er_priv *priv,
2149					  u8 is_auto, u8 plp_id)
2150{
2151	if (is_auto) {
2152		dev_dbg(&priv->i2c->dev,
2153			"%s() using auto PLP selection\n", __func__);
2154	} else {
2155		dev_dbg(&priv->i2c->dev,
2156			"%s() using manual PLP selection, ID %d\n",
2157			__func__, plp_id);
2158	}
2159	/* Set SLV-T Bank : 0x23 */
2160	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x23);
2161	if (!is_auto) {
2162		/* Manual PLP selection mode. Set the data PLP Id. */
2163		cxd2841er_write_reg(priv, I2C_SLVT, 0xaf, plp_id);
2164	}
2165	/* Auto PLP select (Scanning mode = 0x00). Data PLP select = 0x01. */
2166	cxd2841er_write_reg(priv, I2C_SLVT, 0xad, (is_auto ? 0x00 : 0x01));
2167	return 0;
2168}
2169
2170static int cxd2841er_sleep_tc_to_active_t2_band(struct cxd2841er_priv *priv,
2171						u32 bandwidth)
2172{
2173	u32 iffreq, ifhz;
2174	u8 data[MAX_WRITE_REGSIZE];
2175
2176	static const uint8_t nominalRate8bw[3][5] = {
2177		/* TRCG Nominal Rate [37:0] */
2178		{0x11, 0xF0, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2179		{0x15, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2180		{0x11, 0xF0, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2181	};
2182
2183	static const uint8_t nominalRate7bw[3][5] = {
2184		/* TRCG Nominal Rate [37:0] */
2185		{0x14, 0x80, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2186		{0x18, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2187		{0x14, 0x80, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2188	};
2189
2190	static const uint8_t nominalRate6bw[3][5] = {
2191		/* TRCG Nominal Rate [37:0] */
2192		{0x17, 0xEA, 0xAA, 0xAA, 0xAA}, /* 20.5MHz XTal */
2193		{0x1C, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2194		{0x17, 0xEA, 0xAA, 0xAA, 0xAA}  /* 41MHz XTal */
2195	};
2196
2197	static const uint8_t nominalRate5bw[3][5] = {
2198		/* TRCG Nominal Rate [37:0] */
2199		{0x1C, 0xB3, 0x33, 0x33, 0x33}, /* 20.5MHz XTal */
2200		{0x21, 0x99, 0x99, 0x99, 0x99}, /* 24MHz XTal */
2201		{0x1C, 0xB3, 0x33, 0x33, 0x33}  /* 41MHz XTal */
2202	};
2203
2204	static const uint8_t nominalRate17bw[3][5] = {
2205		/* TRCG Nominal Rate [37:0] */
2206		{0x58, 0xE2, 0xAF, 0xE0, 0xBC}, /* 20.5MHz XTal */
2207		{0x68, 0x0F, 0xA2, 0x32, 0xD0}, /* 24MHz XTal */
2208		{0x58, 0xE2, 0xAF, 0xE0, 0xBC}  /* 41MHz XTal */
2209	};
2210
2211	static const uint8_t itbCoef8bw[3][14] = {
2212		{0x26, 0xAF, 0x06, 0xCD, 0x13, 0xBB, 0x28, 0xBA,
2213			0x23, 0xA9, 0x1F, 0xA8, 0x2C, 0xC8}, /* 20.5MHz XTal */
2214		{0x2F, 0xBA, 0x28, 0x9B, 0x28, 0x9D, 0x28, 0xA1,
2215			0x29, 0xA5, 0x2A, 0xAC, 0x29, 0xB5}, /* 24MHz XTal   */
2216		{0x26, 0xAF, 0x06, 0xCD, 0x13, 0xBB, 0x28, 0xBA,
2217			0x23, 0xA9, 0x1F, 0xA8, 0x2C, 0xC8}  /* 41MHz XTal   */
2218	};
2219
2220	static const uint8_t itbCoef7bw[3][14] = {
2221		{0x2C, 0xBD, 0x02, 0xCF, 0x04, 0xF8, 0x23, 0xA6,
2222			0x29, 0xB0, 0x26, 0xA9, 0x21, 0xA5}, /* 20.5MHz XTal */
2223		{0x30, 0xB1, 0x29, 0x9A, 0x28, 0x9C, 0x28, 0xA0,
2224			0x29, 0xA2, 0x2B, 0xA6, 0x2B, 0xAD}, /* 24MHz XTal   */
2225		{0x2C, 0xBD, 0x02, 0xCF, 0x04, 0xF8, 0x23, 0xA6,
2226			0x29, 0xB0, 0x26, 0xA9, 0x21, 0xA5}  /* 41MHz XTal   */
2227	};
2228
2229	static const uint8_t itbCoef6bw[3][14] = {
2230		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2231			0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2232		{0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E,
2233			0x29, 0xA4, 0x29, 0xA2, 0x29, 0xA8}, /* 24MHz XTal   */
2234		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2235			0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4}  /* 41MHz XTal   */
2236	};
2237
2238	static const uint8_t itbCoef5bw[3][14] = {
2239		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2240			0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2241		{0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E,
2242			0x29, 0xA4, 0x29, 0xA2, 0x29, 0xA8}, /* 24MHz XTal   */
2243		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2244			0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4}  /* 41MHz XTal   */
2245	};
2246
2247	static const uint8_t itbCoef17bw[3][14] = {
2248		{0x25, 0xA0, 0x36, 0x8D, 0x2E, 0x94, 0x28, 0x9B,
2249			0x32, 0x90, 0x2C, 0x9D, 0x29, 0x99}, /* 20.5MHz XTal */
2250		{0x33, 0x8E, 0x2B, 0x97, 0x2D, 0x95, 0x37, 0x8B,
2251			0x30, 0x97, 0x2D, 0x9A, 0x21, 0xA4}, /* 24MHz XTal   */
2252		{0x25, 0xA0, 0x36, 0x8D, 0x2E, 0x94, 0x28, 0x9B,
2253			0x32, 0x90, 0x2C, 0x9D, 0x29, 0x99}  /* 41MHz XTal   */
2254	};
2255
2256	/* Set SLV-T Bank : 0x20 */
2257	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
2258
2259	switch (bandwidth) {
2260	case 8000000:
2261		/* <Timing Recovery setting> */
2262		cxd2841er_write_regs(priv, I2C_SLVT,
2263				0x9F, nominalRate8bw[priv->xtal], 5);
2264
2265		/* Set SLV-T Bank : 0x27 */
2266		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2267		cxd2841er_set_reg_bits(priv, I2C_SLVT,
2268				0x7a, 0x00, 0x0f);
2269
2270		/* Set SLV-T Bank : 0x10 */
2271		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2272
2273		/* Group delay equaliser settings for
2274		 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2275		 */
2276		if (priv->flags & CXD2841ER_ASCOT)
2277			cxd2841er_write_regs(priv, I2C_SLVT,
2278				0xA6, itbCoef8bw[priv->xtal], 14);
2279		/* <IF freq setting> */
2280		ifhz = cxd2841er_get_if_hz(priv, 4800000);
2281		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2282		data[0] = (u8) ((iffreq >> 16) & 0xff);
2283		data[1] = (u8)((iffreq >> 8) & 0xff);
2284		data[2] = (u8)(iffreq & 0xff);
2285		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2286		/* System bandwidth setting */
2287		cxd2841er_set_reg_bits(
2288				priv, I2C_SLVT, 0xD7, 0x00, 0x07);
2289		break;
2290	case 7000000:
2291		/* <Timing Recovery setting> */
2292		cxd2841er_write_regs(priv, I2C_SLVT,
2293				0x9F, nominalRate7bw[priv->xtal], 5);
2294
2295		/* Set SLV-T Bank : 0x27 */
2296		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2297		cxd2841er_set_reg_bits(priv, I2C_SLVT,
2298				0x7a, 0x00, 0x0f);
2299
2300		/* Set SLV-T Bank : 0x10 */
2301		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2302
2303		/* Group delay equaliser settings for
2304		 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2305		 */
2306		if (priv->flags & CXD2841ER_ASCOT)
2307			cxd2841er_write_regs(priv, I2C_SLVT,
2308				0xA6, itbCoef7bw[priv->xtal], 14);
2309		/* <IF freq setting> */
2310		ifhz = cxd2841er_get_if_hz(priv, 4200000);
2311		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2312		data[0] = (u8) ((iffreq >> 16) & 0xff);
2313		data[1] = (u8)((iffreq >> 8) & 0xff);
2314		data[2] = (u8)(iffreq & 0xff);
2315		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2316		/* System bandwidth setting */
2317		cxd2841er_set_reg_bits(
2318				priv, I2C_SLVT, 0xD7, 0x02, 0x07);
2319		break;
2320	case 6000000:
2321		/* <Timing Recovery setting> */
2322		cxd2841er_write_regs(priv, I2C_SLVT,
2323				0x9F, nominalRate6bw[priv->xtal], 5);
2324
2325		/* Set SLV-T Bank : 0x27 */
2326		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2327		cxd2841er_set_reg_bits(priv, I2C_SLVT,
2328				0x7a, 0x00, 0x0f);
2329
2330		/* Set SLV-T Bank : 0x10 */
2331		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2332
2333		/* Group delay equaliser settings for
2334		 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2335		 */
2336		if (priv->flags & CXD2841ER_ASCOT)
2337			cxd2841er_write_regs(priv, I2C_SLVT,
2338				0xA6, itbCoef6bw[priv->xtal], 14);
2339		/* <IF freq setting> */
2340		ifhz = cxd2841er_get_if_hz(priv, 3600000);
2341		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2342		data[0] = (u8) ((iffreq >> 16) & 0xff);
2343		data[1] = (u8)((iffreq >> 8) & 0xff);
2344		data[2] = (u8)(iffreq & 0xff);
2345		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2346		/* System bandwidth setting */
2347		cxd2841er_set_reg_bits(
2348				priv, I2C_SLVT, 0xD7, 0x04, 0x07);
2349		break;
2350	case 5000000:
2351		/* <Timing Recovery setting> */
2352		cxd2841er_write_regs(priv, I2C_SLVT,
2353				0x9F, nominalRate5bw[priv->xtal], 5);
2354
2355		/* Set SLV-T Bank : 0x27 */
2356		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2357		cxd2841er_set_reg_bits(priv, I2C_SLVT,
2358				0x7a, 0x00, 0x0f);
2359
2360		/* Set SLV-T Bank : 0x10 */
2361		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2362
2363		/* Group delay equaliser settings for
2364		 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2365		 */
2366		if (priv->flags & CXD2841ER_ASCOT)
2367			cxd2841er_write_regs(priv, I2C_SLVT,
2368				0xA6, itbCoef5bw[priv->xtal], 14);
2369		/* <IF freq setting> */
2370		ifhz = cxd2841er_get_if_hz(priv, 3600000);
2371		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2372		data[0] = (u8) ((iffreq >> 16) & 0xff);
2373		data[1] = (u8)((iffreq >> 8) & 0xff);
2374		data[2] = (u8)(iffreq & 0xff);
2375		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2376		/* System bandwidth setting */
2377		cxd2841er_set_reg_bits(
2378				priv, I2C_SLVT, 0xD7, 0x06, 0x07);
2379		break;
2380	case 1712000:
2381		/* <Timing Recovery setting> */
2382		cxd2841er_write_regs(priv, I2C_SLVT,
2383				0x9F, nominalRate17bw[priv->xtal], 5);
2384
2385		/* Set SLV-T Bank : 0x27 */
2386		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
2387		cxd2841er_set_reg_bits(priv, I2C_SLVT,
2388				0x7a, 0x03, 0x0f);
2389
2390		/* Set SLV-T Bank : 0x10 */
2391		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2392
2393		/* Group delay equaliser settings for
2394		 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2395		 */
2396		if (priv->flags & CXD2841ER_ASCOT)
2397			cxd2841er_write_regs(priv, I2C_SLVT,
2398				0xA6, itbCoef17bw[priv->xtal], 14);
2399		/* <IF freq setting> */
2400		ifhz = cxd2841er_get_if_hz(priv, 3500000);
2401		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2402		data[0] = (u8) ((iffreq >> 16) & 0xff);
2403		data[1] = (u8)((iffreq >> 8) & 0xff);
2404		data[2] = (u8)(iffreq & 0xff);
2405		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2406		/* System bandwidth setting */
2407		cxd2841er_set_reg_bits(
2408				priv, I2C_SLVT, 0xD7, 0x03, 0x07);
2409		break;
2410	default:
2411		return -EINVAL;
2412	}
2413	return 0;
2414}
2415
2416static int cxd2841er_sleep_tc_to_active_t_band(
2417		struct cxd2841er_priv *priv, u32 bandwidth)
2418{
2419	u8 data[MAX_WRITE_REGSIZE];
2420	u32 iffreq, ifhz;
2421	static const u8 nominalRate8bw[3][5] = {
2422		/* TRCG Nominal Rate [37:0] */
2423		{0x11, 0xF0, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2424		{0x15, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2425		{0x11, 0xF0, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2426	};
2427	static const u8 nominalRate7bw[3][5] = {
2428		/* TRCG Nominal Rate [37:0] */
2429		{0x14, 0x80, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2430		{0x18, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2431		{0x14, 0x80, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2432	};
2433	static const u8 nominalRate6bw[3][5] = {
2434		/* TRCG Nominal Rate [37:0] */
2435		{0x17, 0xEA, 0xAA, 0xAA, 0xAA}, /* 20.5MHz XTal */
2436		{0x1C, 0x00, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2437		{0x17, 0xEA, 0xAA, 0xAA, 0xAA}  /* 41MHz XTal */
2438	};
2439	static const u8 nominalRate5bw[3][5] = {
2440		/* TRCG Nominal Rate [37:0] */
2441		{0x1C, 0xB3, 0x33, 0x33, 0x33}, /* 20.5MHz XTal */
2442		{0x21, 0x99, 0x99, 0x99, 0x99}, /* 24MHz XTal */
2443		{0x1C, 0xB3, 0x33, 0x33, 0x33}  /* 41MHz XTal */
2444	};
2445
2446	static const u8 itbCoef8bw[3][14] = {
2447		{0x26, 0xAF, 0x06, 0xCD, 0x13, 0xBB, 0x28, 0xBA, 0x23, 0xA9,
2448			0x1F, 0xA8, 0x2C, 0xC8}, /* 20.5MHz XTal */
2449		{0x2F, 0xBA, 0x28, 0x9B, 0x28, 0x9D, 0x28, 0xA1, 0x29, 0xA5,
2450			0x2A, 0xAC, 0x29, 0xB5}, /* 24MHz XTal   */
2451		{0x26, 0xAF, 0x06, 0xCD, 0x13, 0xBB, 0x28, 0xBA, 0x23, 0xA9,
2452			0x1F, 0xA8, 0x2C, 0xC8}  /* 41MHz XTal   */
2453	};
2454	static const u8 itbCoef7bw[3][14] = {
2455		{0x2C, 0xBD, 0x02, 0xCF, 0x04, 0xF8, 0x23, 0xA6, 0x29, 0xB0,
2456			0x26, 0xA9, 0x21, 0xA5}, /* 20.5MHz XTal */
2457		{0x30, 0xB1, 0x29, 0x9A, 0x28, 0x9C, 0x28, 0xA0, 0x29, 0xA2,
2458			0x2B, 0xA6, 0x2B, 0xAD}, /* 24MHz XTal   */
2459		{0x2C, 0xBD, 0x02, 0xCF, 0x04, 0xF8, 0x23, 0xA6, 0x29, 0xB0,
2460			0x26, 0xA9, 0x21, 0xA5}  /* 41MHz XTal   */
2461	};
2462	static const u8 itbCoef6bw[3][14] = {
2463		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00, 0xCF,
2464			0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2465		{0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E, 0x29, 0xA4,
2466			0x29, 0xA2, 0x29, 0xA8}, /* 24MHz XTal   */
2467		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00, 0xCF,
2468			0x00, 0xE6, 0x23, 0xA4}  /* 41MHz XTal   */
2469	};
2470	static const u8 itbCoef5bw[3][14] = {
2471		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00, 0xCF,
2472			0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2473		{0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E, 0x29, 0xA4,
2474			0x29, 0xA2, 0x29, 0xA8}, /* 24MHz XTal   */
2475		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00, 0xCF,
2476			0x00, 0xE6, 0x23, 0xA4}  /* 41MHz XTal   */
2477	};
2478
2479	/* Set SLV-T Bank : 0x13 */
2480	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x13);
2481	/* Echo performance optimization setting */
2482	data[0] = 0x01;
2483	data[1] = 0x14;
2484	cxd2841er_write_regs(priv, I2C_SLVT, 0x9C, data, 2);
2485
2486	/* Set SLV-T Bank : 0x10 */
2487	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2488
2489	switch (bandwidth) {
2490	case 8000000:
2491		/* <Timing Recovery setting> */
2492		cxd2841er_write_regs(priv, I2C_SLVT,
2493				0x9F, nominalRate8bw[priv->xtal], 5);
2494		/* Group delay equaliser settings for
2495		 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2496		*/
2497		if (priv->flags & CXD2841ER_ASCOT)
2498			cxd2841er_write_regs(priv, I2C_SLVT,
2499				0xA6, itbCoef8bw[priv->xtal], 14);
2500		/* <IF freq setting> */
2501		ifhz = cxd2841er_get_if_hz(priv, 4800000);
2502		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2503		data[0] = (u8) ((iffreq >> 16) & 0xff);
2504		data[1] = (u8)((iffreq >> 8) & 0xff);
2505		data[2] = (u8)(iffreq & 0xff);
2506		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2507		/* System bandwidth setting */
2508		cxd2841er_set_reg_bits(
2509			priv, I2C_SLVT, 0xD7, 0x00, 0x07);
2510
2511		/* Demod core latency setting */
2512		if (priv->xtal == SONY_XTAL_24000) {
2513			data[0] = 0x15;
2514			data[1] = 0x28;
2515		} else {
2516			data[0] = 0x01;
2517			data[1] = 0xE0;
2518		}
2519		cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2520
2521		/* Notch filter setting */
2522		data[0] = 0x01;
2523		data[1] = 0x02;
2524		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x17);
2525		cxd2841er_write_regs(priv, I2C_SLVT, 0x38, data, 2);
2526		break;
2527	case 7000000:
2528		/* <Timing Recovery setting> */
2529		cxd2841er_write_regs(priv, I2C_SLVT,
2530				0x9F, nominalRate7bw[priv->xtal], 5);
2531		/* Group delay equaliser settings for
2532		 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2533		*/
2534		if (priv->flags & CXD2841ER_ASCOT)
2535			cxd2841er_write_regs(priv, I2C_SLVT,
2536				0xA6, itbCoef7bw[priv->xtal], 14);
2537		/* <IF freq setting> */
2538		ifhz = cxd2841er_get_if_hz(priv, 4200000);
2539		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2540		data[0] = (u8) ((iffreq >> 16) & 0xff);
2541		data[1] = (u8)((iffreq >> 8) & 0xff);
2542		data[2] = (u8)(iffreq & 0xff);
2543		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2544		/* System bandwidth setting */
2545		cxd2841er_set_reg_bits(
2546			priv, I2C_SLVT, 0xD7, 0x02, 0x07);
2547
2548		/* Demod core latency setting */
2549		if (priv->xtal == SONY_XTAL_24000) {
2550			data[0] = 0x1F;
2551			data[1] = 0xF8;
2552		} else {
2553			data[0] = 0x12;
2554			data[1] = 0xF8;
2555		}
2556		cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2557
2558		/* Notch filter setting */
2559		data[0] = 0x00;
2560		data[1] = 0x03;
2561		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x17);
2562		cxd2841er_write_regs(priv, I2C_SLVT, 0x38, data, 2);
2563		break;
2564	case 6000000:
2565		/* <Timing Recovery setting> */
2566		cxd2841er_write_regs(priv, I2C_SLVT,
2567				0x9F, nominalRate6bw[priv->xtal], 5);
2568		/* Group delay equaliser settings for
2569		 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2570		*/
2571		if (priv->flags & CXD2841ER_ASCOT)
2572			cxd2841er_write_regs(priv, I2C_SLVT,
2573				0xA6, itbCoef6bw[priv->xtal], 14);
2574		/* <IF freq setting> */
2575		ifhz = cxd2841er_get_if_hz(priv, 3600000);
2576		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2577		data[0] = (u8) ((iffreq >> 16) & 0xff);
2578		data[1] = (u8)((iffreq >> 8) & 0xff);
2579		data[2] = (u8)(iffreq & 0xff);
2580		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2581		/* System bandwidth setting */
2582		cxd2841er_set_reg_bits(
2583			priv, I2C_SLVT, 0xD7, 0x04, 0x07);
2584
2585		/* Demod core latency setting */
2586		if (priv->xtal == SONY_XTAL_24000) {
2587			data[0] = 0x25;
2588			data[1] = 0x4C;
2589		} else {
2590			data[0] = 0x1F;
2591			data[1] = 0xDC;
2592		}
2593		cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2594
2595		/* Notch filter setting */
2596		data[0] = 0x00;
2597		data[1] = 0x03;
2598		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x17);
2599		cxd2841er_write_regs(priv, I2C_SLVT, 0x38, data, 2);
2600		break;
2601	case 5000000:
2602		/* <Timing Recovery setting> */
2603		cxd2841er_write_regs(priv, I2C_SLVT,
2604				0x9F, nominalRate5bw[priv->xtal], 5);
2605		/* Group delay equaliser settings for
2606		 * ASCOT2D, ASCOT2E and ASCOT3 tuners
2607		*/
2608		if (priv->flags & CXD2841ER_ASCOT)
2609			cxd2841er_write_regs(priv, I2C_SLVT,
2610				0xA6, itbCoef5bw[priv->xtal], 14);
2611		/* <IF freq setting> */
2612		ifhz = cxd2841er_get_if_hz(priv, 3600000);
2613		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2614		data[0] = (u8) ((iffreq >> 16) & 0xff);
2615		data[1] = (u8)((iffreq >> 8) & 0xff);
2616		data[2] = (u8)(iffreq & 0xff);
2617		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2618		/* System bandwidth setting */
2619		cxd2841er_set_reg_bits(
2620			priv, I2C_SLVT, 0xD7, 0x06, 0x07);
2621
2622		/* Demod core latency setting */
2623		if (priv->xtal == SONY_XTAL_24000) {
2624			data[0] = 0x2C;
2625			data[1] = 0xC2;
2626		} else {
2627			data[0] = 0x26;
2628			data[1] = 0x3C;
2629		}
2630		cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2631
2632		/* Notch filter setting */
2633		data[0] = 0x00;
2634		data[1] = 0x03;
2635		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x17);
2636		cxd2841er_write_regs(priv, I2C_SLVT, 0x38, data, 2);
2637		break;
2638	}
2639
2640	return 0;
2641}
2642
2643static int cxd2841er_sleep_tc_to_active_i_band(
2644		struct cxd2841er_priv *priv, u32 bandwidth)
2645{
2646	u32 iffreq, ifhz;
2647	u8 data[3];
2648
2649	/* TRCG Nominal Rate */
2650	static const u8 nominalRate8bw[3][5] = {
2651		{0x00, 0x00, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2652		{0x11, 0xB8, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2653		{0x00, 0x00, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2654	};
2655
2656	static const u8 nominalRate7bw[3][5] = {
2657		{0x00, 0x00, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2658		{0x14, 0x40, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2659		{0x00, 0x00, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2660	};
2661
2662	static const u8 nominalRate6bw[3][5] = {
2663		{0x14, 0x2E, 0x00, 0x00, 0x00}, /* 20.5MHz XTal */
2664		{0x17, 0xA0, 0x00, 0x00, 0x00}, /* 24MHz XTal */
2665		{0x14, 0x2E, 0x00, 0x00, 0x00}  /* 41MHz XTal */
2666	};
2667
2668	static const u8 itbCoef8bw[3][14] = {
2669		{0x00}, /* 20.5MHz XTal */
2670		{0x2F, 0xBA, 0x28, 0x9B, 0x28, 0x9D, 0x28, 0xA1, 0x29,
2671			0xA5, 0x2A, 0xAC, 0x29, 0xB5}, /* 24MHz Xtal */
2672		{0x0}, /* 41MHz XTal   */
2673	};
2674
2675	static const u8 itbCoef7bw[3][14] = {
2676		{0x00}, /* 20.5MHz XTal */
2677		{0x30, 0xB1, 0x29, 0x9A, 0x28, 0x9C, 0x28, 0xA0, 0x29,
2678			0xA2, 0x2B, 0xA6, 0x2B, 0xAD}, /* 24MHz Xtal */
2679		{0x00}, /* 41MHz XTal   */
2680	};
2681
2682	static const u8 itbCoef6bw[3][14] = {
2683		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00,
2684			0xCF, 0x00, 0xE6, 0x23, 0xA4}, /* 20.5MHz XTal */
2685		{0x31, 0xA8, 0x29, 0x9B, 0x27, 0x9C, 0x28, 0x9E, 0x29,
2686			0xA4, 0x29, 0xA2, 0x29, 0xA8}, /* 24MHz Xtal   */
2687		{0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8, 0x00,
2688			0xCF, 0x00, 0xE6, 0x23, 0xA4}, /* 41MHz XTal   */
2689	};
2690
2691	dev_dbg(&priv->i2c->dev, "%s() bandwidth=%u\n", __func__, bandwidth);
2692	/* Set SLV-T Bank : 0x10 */
2693	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2694
2695	/*  20.5/41MHz Xtal support is not available
2696	 *  on ISDB-T 7MHzBW and 8MHzBW
2697	*/
2698	if (priv->xtal != SONY_XTAL_24000 && bandwidth > 6000000) {
2699		dev_err(&priv->i2c->dev,
2700			"%s(): bandwidth %d supported only for 24MHz xtal\n",
2701			__func__, bandwidth);
2702		return -EINVAL;
2703	}
2704
2705	switch (bandwidth) {
2706	case 8000000:
2707		/* TRCG Nominal Rate */
2708		cxd2841er_write_regs(priv, I2C_SLVT,
2709				0x9F, nominalRate8bw[priv->xtal], 5);
2710		/*  Group delay equaliser settings for ASCOT tuners optimized */
2711		if (priv->flags & CXD2841ER_ASCOT)
2712			cxd2841er_write_regs(priv, I2C_SLVT,
2713				0xA6, itbCoef8bw[priv->xtal], 14);
2714
2715		/* IF freq setting */
2716		ifhz = cxd2841er_get_if_hz(priv, 4750000);
2717		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2718		data[0] = (u8) ((iffreq >> 16) & 0xff);
2719		data[1] = (u8)((iffreq >> 8) & 0xff);
2720		data[2] = (u8)(iffreq & 0xff);
2721		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2722
2723		/* System bandwidth setting */
2724		cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd7, 0x0, 0x7);
2725
2726		/* Demod core latency setting */
2727		data[0] = 0x13;
2728		data[1] = 0xFC;
2729		cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2730
2731		/* Acquisition optimization setting */
2732		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x12);
2733		cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x71, 0x03, 0x07);
2734		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x15);
2735		cxd2841er_write_reg(priv, I2C_SLVT, 0xBE, 0x03);
2736		break;
2737	case 7000000:
2738		/* TRCG Nominal Rate */
2739		cxd2841er_write_regs(priv, I2C_SLVT,
2740				0x9F, nominalRate7bw[priv->xtal], 5);
2741		/*  Group delay equaliser settings for ASCOT tuners optimized */
2742		if (priv->flags & CXD2841ER_ASCOT)
2743			cxd2841er_write_regs(priv, I2C_SLVT,
2744				0xA6, itbCoef7bw[priv->xtal], 14);
2745
2746		/* IF freq setting */
2747		ifhz = cxd2841er_get_if_hz(priv, 4150000);
2748		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2749		data[0] = (u8) ((iffreq >> 16) & 0xff);
2750		data[1] = (u8)((iffreq >> 8) & 0xff);
2751		data[2] = (u8)(iffreq & 0xff);
2752		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2753
2754		/* System bandwidth setting */
2755		cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd7, 0x02, 0x7);
2756
2757		/* Demod core latency setting */
2758		data[0] = 0x1A;
2759		data[1] = 0xFA;
2760		cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2761
2762		/* Acquisition optimization setting */
2763		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x12);
2764		cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x71, 0x03, 0x07);
2765		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x15);
2766		cxd2841er_write_reg(priv, I2C_SLVT, 0xBE, 0x02);
2767		break;
2768	case 6000000:
2769		/* TRCG Nominal Rate */
2770		cxd2841er_write_regs(priv, I2C_SLVT,
2771				0x9F, nominalRate6bw[priv->xtal], 5);
2772		/*  Group delay equaliser settings for ASCOT tuners optimized */
2773		if (priv->flags & CXD2841ER_ASCOT)
2774			cxd2841er_write_regs(priv, I2C_SLVT,
2775				0xA6, itbCoef6bw[priv->xtal], 14);
2776
2777		/* IF freq setting */
2778		ifhz = cxd2841er_get_if_hz(priv, 3550000);
2779		iffreq = cxd2841er_calc_iffreq_xtal(priv->xtal, ifhz);
2780		data[0] = (u8) ((iffreq >> 16) & 0xff);
2781		data[1] = (u8)((iffreq >> 8) & 0xff);
2782		data[2] = (u8)(iffreq & 0xff);
2783		cxd2841er_write_regs(priv, I2C_SLVT, 0xB6, data, 3);
2784
2785		/* System bandwidth setting */
2786		cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd7, 0x04, 0x7);
2787
2788		/* Demod core latency setting */
2789		if (priv->xtal == SONY_XTAL_24000) {
2790			data[0] = 0x1F;
2791			data[1] = 0x79;
2792		} else {
2793			data[0] = 0x1A;
2794			data[1] = 0xE2;
2795		}
2796		cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
2797
2798		/* Acquisition optimization setting */
2799		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x12);
2800		cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x71, 0x07, 0x07);
2801		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x15);
2802		cxd2841er_write_reg(priv, I2C_SLVT, 0xBE, 0x02);
2803		break;
2804	default:
2805		dev_dbg(&priv->i2c->dev, "%s(): invalid bandwidth %d\n",
2806				__func__, bandwidth);
2807		return -EINVAL;
2808	}
2809	return 0;
2810}
2811
2812static int cxd2841er_sleep_tc_to_active_c_band(struct cxd2841er_priv *priv,
2813					       u32 bandwidth)
2814{
2815	u8 bw7_8mhz_b10_a6[] = {
2816		0x2D, 0xC7, 0x04, 0xF4, 0x07, 0xC5, 0x2A, 0xB8,
2817		0x27, 0x9E, 0x27, 0xA4, 0x29, 0xAB };
2818	u8 bw6mhz_b10_a6[] = {
2819		0x27, 0xA7, 0x28, 0xB3, 0x02, 0xF0, 0x01, 0xE8,
2820		0x00, 0xCF, 0x00, 0xE6, 0x23, 0xA4 };
2821	u8 b10_b6[3];
2822	u32 iffreq, ifhz;
2823
2824	if (bandwidth != 6000000 &&
2825			bandwidth != 7000000 &&
2826			bandwidth != 8000000) {
2827		dev_info(&priv->i2c->dev, "%s(): unsupported bandwidth %d. Forcing 8Mhz!\n",
2828				__func__, bandwidth);
2829		bandwidth = 8000000;
2830	}
2831
2832	dev_dbg(&priv->i2c->dev, "%s() bw=%d\n", __func__, bandwidth);
2833	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2834	switch (bandwidth) {
2835	case 8000000:
2836	case 7000000:
2837		if (priv->flags & CXD2841ER_ASCOT)
2838			cxd2841er_write_regs(
2839				priv, I2C_SLVT, 0xa6,
2840				bw7_8mhz_b10_a6, sizeof(bw7_8mhz_b10_a6));
2841		ifhz = cxd2841er_get_if_hz(priv, 4900000);
2842		iffreq = cxd2841er_calc_iffreq(ifhz);
2843		break;
2844	case 6000000:
2845		if (priv->flags & CXD2841ER_ASCOT)
2846			cxd2841er_write_regs(
2847				priv, I2C_SLVT, 0xa6,
2848				bw6mhz_b10_a6, sizeof(bw6mhz_b10_a6));
2849		ifhz = cxd2841er_get_if_hz(priv, 3700000);
2850		iffreq = cxd2841er_calc_iffreq(ifhz);
2851		break;
2852	default:
2853		dev_err(&priv->i2c->dev, "%s(): unsupported bandwidth %d\n",
2854			__func__, bandwidth);
2855		return -EINVAL;
2856	}
2857	/* <IF freq setting> */
2858	b10_b6[0] = (u8) ((iffreq >> 16) & 0xff);
2859	b10_b6[1] = (u8)((iffreq >> 8) & 0xff);
2860	b10_b6[2] = (u8)(iffreq & 0xff);
2861	cxd2841er_write_regs(priv, I2C_SLVT, 0xb6, b10_b6, sizeof(b10_b6));
2862	/* Set SLV-T Bank : 0x11 */
2863	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
2864	switch (bandwidth) {
2865	case 8000000:
2866	case 7000000:
2867		cxd2841er_set_reg_bits(
2868			priv, I2C_SLVT, 0xa3, 0x00, 0x1f);
2869		break;
2870	case 6000000:
2871		cxd2841er_set_reg_bits(
2872			priv, I2C_SLVT, 0xa3, 0x14, 0x1f);
2873		break;
2874	}
2875	/* Set SLV-T Bank : 0x40 */
2876	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
2877	switch (bandwidth) {
2878	case 8000000:
2879		cxd2841er_set_reg_bits(
2880			priv, I2C_SLVT, 0x26, 0x0b, 0x0f);
2881		cxd2841er_write_reg(priv, I2C_SLVT,  0x27, 0x3e);
2882		break;
2883	case 7000000:
2884		cxd2841er_set_reg_bits(
2885			priv, I2C_SLVT, 0x26, 0x09, 0x0f);
2886		cxd2841er_write_reg(priv, I2C_SLVT,  0x27, 0xd6);
2887		break;
2888	case 6000000:
2889		cxd2841er_set_reg_bits(
2890			priv, I2C_SLVT, 0x26, 0x08, 0x0f);
2891		cxd2841er_write_reg(priv, I2C_SLVT,  0x27, 0x6e);
2892		break;
2893	}
2894	return 0;
2895}
2896
2897static int cxd2841er_sleep_tc_to_active_t(struct cxd2841er_priv *priv,
2898					  u32 bandwidth)
2899{
2900	u8 data[2] = { 0x09, 0x54 };
2901	u8 data24m[3] = {0xDC, 0x6C, 0x00};
2902
2903	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2904	cxd2841er_set_ts_clock_mode(priv, SYS_DVBT);
2905	/* Set SLV-X Bank : 0x00 */
2906	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
2907	/* Set demod mode */
2908	cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x01);
2909	/* Set SLV-T Bank : 0x00 */
2910	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
2911	/* Enable demod clock */
2912	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
2913	/* Disable RF level monitor */
2914	cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
2915	/* Enable ADC clock */
2916	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
2917	/* Enable ADC 1 */
2918	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x1a);
2919	/* Enable ADC 2 & 3 */
2920	if (priv->xtal == SONY_XTAL_41000) {
2921		data[0] = 0x0A;
2922		data[1] = 0xD4;
2923	}
2924	cxd2841er_write_regs(priv, I2C_SLVT, 0x43, data, 2);
2925	/* Enable ADC 4 */
2926	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
2927	/* Set SLV-T Bank : 0x10 */
2928	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2929	/* IFAGC gain settings */
2930	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd2, 0x0c, 0x1f);
2931	/* Set SLV-T Bank : 0x11 */
2932	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
2933	/* BBAGC TARGET level setting */
2934	cxd2841er_write_reg(priv, I2C_SLVT, 0x6a, 0x50);
2935	/* Set SLV-T Bank : 0x10 */
2936	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2937	/* ASCOT setting */
2938	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa5,
2939		((priv->flags & CXD2841ER_ASCOT) ? 0x01 : 0x00), 0x01);
2940	/* Set SLV-T Bank : 0x18 */
2941	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x18);
2942	/* Pre-RS BER monitor setting */
2943	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x36, 0x40, 0x07);
2944	/* FEC Auto Recovery setting */
2945	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x30, 0x01, 0x01);
2946	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x31, 0x01, 0x01);
2947	/* Set SLV-T Bank : 0x00 */
2948	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
2949	/* TSIF setting */
2950	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xce, 0x01, 0x01);
2951	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcf, 0x01, 0x01);
2952
2953	if (priv->xtal == SONY_XTAL_24000) {
2954		/* Set SLV-T Bank : 0x10 */
2955		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
2956		cxd2841er_write_reg(priv, I2C_SLVT, 0xBF, 0x60);
2957		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x18);
2958		cxd2841er_write_regs(priv, I2C_SLVT, 0x24, data24m, 3);
2959	}
2960
2961	cxd2841er_sleep_tc_to_active_t_band(priv, bandwidth);
2962	/* Set SLV-T Bank : 0x00 */
2963	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
2964	/* Disable HiZ Setting 1 */
2965	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x28);
2966	/* Disable HiZ Setting 2 */
2967	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
2968	priv->state = STATE_ACTIVE_TC;
2969	return 0;
2970}
2971
2972static int cxd2841er_sleep_tc_to_active_t2(struct cxd2841er_priv *priv,
2973					   u32 bandwidth)
2974{
2975	u8 data[MAX_WRITE_REGSIZE];
2976
2977	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
2978	cxd2841er_set_ts_clock_mode(priv, SYS_DVBT2);
2979	/* Set SLV-X Bank : 0x00 */
2980	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
2981	/* Set demod mode */
2982	cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x02);
2983	/* Set SLV-T Bank : 0x00 */
2984	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
2985	/* Enable demod clock */
2986	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
2987	/* Disable RF level monitor */
2988	cxd2841er_write_reg(priv, I2C_SLVT, 0x59, 0x00);
2989	cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
2990	/* Enable ADC clock */
2991	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
2992	/* Enable ADC 1 */
2993	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x1a);
2994
2995	if (priv->xtal == SONY_XTAL_41000) {
2996		data[0] = 0x0A;
2997		data[1] = 0xD4;
2998	} else {
2999		data[0] = 0x09;
3000		data[1] = 0x54;
3001	}
3002
3003	cxd2841er_write_regs(priv, I2C_SLVT, 0x43, data, 2);
3004	/* Enable ADC 4 */
3005	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
3006	/* Set SLV-T Bank : 0x10 */
3007	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3008	/* IFAGC gain settings */
3009	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd2, 0x0c, 0x1f);
3010	/* Set SLV-T Bank : 0x11 */
3011	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
3012	/* BBAGC TARGET level setting */
3013	cxd2841er_write_reg(priv, I2C_SLVT, 0x6a, 0x50);
3014	/* Set SLV-T Bank : 0x10 */
3015	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3016	/* ASCOT setting */
3017	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa5,
3018		((priv->flags & CXD2841ER_ASCOT) ? 0x01 : 0x00), 0x01);
3019	/* Set SLV-T Bank : 0x20 */
3020	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
3021	/* Acquisition optimization setting */
3022	cxd2841er_write_reg(priv, I2C_SLVT, 0x8b, 0x3c);
3023	/* Set SLV-T Bank : 0x2b */
3024	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2b);
3025	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x76, 0x20, 0x70);
3026	/* Set SLV-T Bank : 0x23 */
3027	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x23);
3028	/* L1 Control setting */
3029	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xE6, 0x00, 0x03);
3030	/* Set SLV-T Bank : 0x00 */
3031	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3032	/* TSIF setting */
3033	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xce, 0x01, 0x01);
3034	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcf, 0x01, 0x01);
3035	/* DVB-T2 initial setting */
3036	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x13);
3037	cxd2841er_write_reg(priv, I2C_SLVT, 0x83, 0x10);
3038	cxd2841er_write_reg(priv, I2C_SLVT, 0x86, 0x34);
3039	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x9e, 0x09, 0x0f);
3040	cxd2841er_write_reg(priv, I2C_SLVT, 0x9f, 0xd8);
3041	/* Set SLV-T Bank : 0x2a */
3042	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2a);
3043	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x38, 0x04, 0x0f);
3044	/* Set SLV-T Bank : 0x2b */
3045	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2b);
3046	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x11, 0x20, 0x3f);
3047
3048	/* 24MHz Xtal setting */
3049	if (priv->xtal == SONY_XTAL_24000) {
3050		/* Set SLV-T Bank : 0x11 */
3051		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
3052		data[0] = 0xEB;
3053		data[1] = 0x03;
3054		data[2] = 0x3B;
3055		cxd2841er_write_regs(priv, I2C_SLVT, 0x33, data, 3);
3056
3057		/* Set SLV-T Bank : 0x20 */
3058		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x20);
3059		data[0] = 0x5E;
3060		data[1] = 0x5E;
3061		data[2] = 0x47;
3062		cxd2841er_write_regs(priv, I2C_SLVT, 0x95, data, 3);
3063
3064		cxd2841er_write_reg(priv, I2C_SLVT, 0x99, 0x18);
3065
3066		data[0] = 0x3F;
3067		data[1] = 0xFF;
3068		cxd2841er_write_regs(priv, I2C_SLVT, 0xD9, data, 2);
3069
3070		/* Set SLV-T Bank : 0x24 */
3071		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x24);
3072		data[0] = 0x0B;
3073		data[1] = 0x72;
3074		cxd2841er_write_regs(priv, I2C_SLVT, 0x34, data, 2);
3075
3076		data[0] = 0x93;
3077		data[1] = 0xF3;
3078		data[2] = 0x00;
3079		cxd2841er_write_regs(priv, I2C_SLVT, 0xD2, data, 3);
3080
3081		data[0] = 0x05;
3082		data[1] = 0xB8;
3083		data[2] = 0xD8;
3084		cxd2841er_write_regs(priv, I2C_SLVT, 0xDD, data, 3);
3085
3086		cxd2841er_write_reg(priv, I2C_SLVT, 0xE0, 0x00);
3087
3088		/* Set SLV-T Bank : 0x25 */
3089		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x25);
3090		cxd2841er_write_reg(priv, I2C_SLVT, 0xED, 0x60);
3091
3092		/* Set SLV-T Bank : 0x27 */
3093		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x27);
3094		cxd2841er_write_reg(priv, I2C_SLVT, 0xFA, 0x34);
3095
3096		/* Set SLV-T Bank : 0x2B */
3097		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2B);
3098		cxd2841er_write_reg(priv, I2C_SLVT, 0x4B, 0x2F);
3099		cxd2841er_write_reg(priv, I2C_SLVT, 0x9E, 0x0E);
3100
3101		/* Set SLV-T Bank : 0x2D */
3102		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x2D);
3103		data[0] = 0x89;
3104		data[1] = 0x89;
3105		cxd2841er_write_regs(priv, I2C_SLVT, 0x24, data, 2);
3106
3107		/* Set SLV-T Bank : 0x5E */
3108		cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x5E);
3109		data[0] = 0x24;
3110		data[1] = 0x95;
3111		cxd2841er_write_regs(priv, I2C_SLVT, 0x8C, data, 2);
3112	}
3113
3114	cxd2841er_sleep_tc_to_active_t2_band(priv, bandwidth);
3115
3116	/* Set SLV-T Bank : 0x00 */
3117	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3118	/* Disable HiZ Setting 1 */
3119	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x28);
3120	/* Disable HiZ Setting 2 */
3121	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
3122	priv->state = STATE_ACTIVE_TC;
3123	return 0;
3124}
3125
3126/* ISDB-Tb part */
3127static int cxd2841er_sleep_tc_to_active_i(struct cxd2841er_priv *priv,
3128		u32 bandwidth)
3129{
3130	u8 data[2] = { 0x09, 0x54 };
3131	u8 data24m[2] = {0x60, 0x00};
3132	u8 data24m2[3] = {0xB7, 0x1B, 0x00};
3133
3134	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3135	cxd2841er_set_ts_clock_mode(priv, SYS_DVBT);
3136	/* Set SLV-X Bank : 0x00 */
3137	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
3138	/* Set demod mode */
3139	cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x06);
3140	/* Set SLV-T Bank : 0x00 */
3141	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3142	/* Enable demod clock */
3143	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
3144	/* Enable RF level monitor */
3145	cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x01);
3146	cxd2841er_write_reg(priv, I2C_SLVT, 0x59, 0x01);
3147	/* Enable ADC clock */
3148	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
3149	/* Enable ADC 1 */
3150	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x1a);
3151	/* xtal freq 20.5MHz or 24M */
3152	cxd2841er_write_regs(priv, I2C_SLVT, 0x43, data, 2);
3153	/* Enable ADC 4 */
3154	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
3155	/* ASCOT setting */
3156	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa5,
3157		((priv->flags & CXD2841ER_ASCOT) ? 0x01 : 0x00), 0x01);
3158	/* FEC Auto Recovery setting */
3159	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x30, 0x01, 0x01);
3160	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x31, 0x00, 0x01);
3161	/* ISDB-T initial setting */
3162	/* Set SLV-T Bank : 0x00 */
3163	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3164	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xce, 0x00, 0x01);
3165	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcf, 0x00, 0x01);
3166	/* Set SLV-T Bank : 0x10 */
3167	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3168	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x69, 0x04, 0x07);
3169	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x6B, 0x03, 0x07);
3170	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x9D, 0x50, 0xFF);
3171	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xD3, 0x06, 0x1F);
3172	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xED, 0x00, 0x01);
3173	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xE2, 0xCE, 0x80);
3174	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xF2, 0x13, 0x10);
3175	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xDE, 0x2E, 0x3F);
3176	/* Set SLV-T Bank : 0x15 */
3177	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x15);
3178	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xDE, 0x02, 0x03);
3179	/* Set SLV-T Bank : 0x1E */
3180	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x1E);
3181	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x73, 0x68, 0xFF);
3182	/* Set SLV-T Bank : 0x63 */
3183	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x63);
3184	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0x81, 0x00, 0x01);
3185
3186	/* for xtal 24MHz */
3187	/* Set SLV-T Bank : 0x10 */
3188	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3189	cxd2841er_write_regs(priv, I2C_SLVT, 0xBF, data24m, 2);
3190	/* Set SLV-T Bank : 0x60 */
3191	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x60);
3192	cxd2841er_write_regs(priv, I2C_SLVT, 0xA8, data24m2, 3);
3193
3194	cxd2841er_sleep_tc_to_active_i_band(priv, bandwidth);
3195	/* Set SLV-T Bank : 0x00 */
3196	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3197	/* Disable HiZ Setting 1 */
3198	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x28);
3199	/* Disable HiZ Setting 2 */
3200	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
3201	priv->state = STATE_ACTIVE_TC;
3202	return 0;
3203}
3204
3205static int cxd2841er_sleep_tc_to_active_c(struct cxd2841er_priv *priv,
3206					  u32 bandwidth)
3207{
3208	u8 data[2] = { 0x09, 0x54 };
3209
3210	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3211	cxd2841er_set_ts_clock_mode(priv, SYS_DVBC_ANNEX_A);
3212	/* Set SLV-X Bank : 0x00 */
3213	cxd2841er_write_reg(priv, I2C_SLVX, 0x00, 0x00);
3214	/* Set demod mode */
3215	cxd2841er_write_reg(priv, I2C_SLVX, 0x17, 0x04);
3216	/* Set SLV-T Bank : 0x00 */
3217	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3218	/* Enable demod clock */
3219	cxd2841er_write_reg(priv, I2C_SLVT, 0x2c, 0x01);
3220	/* Disable RF level monitor */
3221	cxd2841er_write_reg(priv, I2C_SLVT, 0x59, 0x00);
3222	cxd2841er_write_reg(priv, I2C_SLVT, 0x2f, 0x00);
3223	/* Enable ADC clock */
3224	cxd2841er_write_reg(priv, I2C_SLVT, 0x30, 0x00);
3225	/* Enable ADC 1 */
3226	cxd2841er_write_reg(priv, I2C_SLVT, 0x41, 0x1a);
3227	/* xtal freq 20.5MHz */
3228	cxd2841er_write_regs(priv, I2C_SLVT, 0x43, data, 2);
3229	/* Enable ADC 4 */
3230	cxd2841er_write_reg(priv, I2C_SLVX, 0x18, 0x00);
3231	/* Set SLV-T Bank : 0x10 */
3232	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3233	/* IFAGC gain settings */
3234	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xd2, 0x09, 0x1f);
3235	/* Set SLV-T Bank : 0x11 */
3236	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x11);
3237	/* BBAGC TARGET level setting */
3238	cxd2841er_write_reg(priv, I2C_SLVT, 0x6a, 0x48);
3239	/* Set SLV-T Bank : 0x10 */
3240	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3241	/* ASCOT setting */
3242	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xa5,
3243		((priv->flags & CXD2841ER_ASCOT) ? 0x01 : 0x00), 0x01);
3244	/* Set SLV-T Bank : 0x40 */
3245	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x40);
3246	/* Demod setting */
3247	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xc3, 0x00, 0x04);
3248	/* Set SLV-T Bank : 0x00 */
3249	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3250	/* TSIF setting */
3251	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xce, 0x01, 0x01);
3252	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcf, 0x01, 0x01);
3253
3254	cxd2841er_sleep_tc_to_active_c_band(priv, bandwidth);
3255	/* Set SLV-T Bank : 0x00 */
3256	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3257	/* Disable HiZ Setting 1 */
3258	cxd2841er_write_reg(priv, I2C_SLVT, 0x80, 0x28);
3259	/* Disable HiZ Setting 2 */
3260	cxd2841er_write_reg(priv, I2C_SLVT, 0x81, 0x00);
3261	priv->state = STATE_ACTIVE_TC;
3262	return 0;
3263}
3264
3265static int cxd2841er_get_frontend(struct dvb_frontend *fe,
3266				  struct dtv_frontend_properties *p)
3267{
3268	enum fe_status status = 0;
3269	struct cxd2841er_priv *priv = fe->demodulator_priv;
3270
3271	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3272	if (priv->state == STATE_ACTIVE_S)
3273		cxd2841er_read_status_s(fe, &status);
3274	else if (priv->state == STATE_ACTIVE_TC)
3275		cxd2841er_read_status_tc(fe, &status);
3276
3277	if (priv->state == STATE_ACTIVE_TC || priv->state == STATE_ACTIVE_S)
3278		cxd2841er_read_signal_strength(fe);
3279	else
3280		p->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3281
3282	if (status & FE_HAS_LOCK) {
3283		if (priv->stats_time &&
3284		    (!time_after(jiffies, priv->stats_time)))
3285			return 0;
3286
3287		/* Prevent retrieving stats faster than once per second */
3288		priv->stats_time = jiffies + msecs_to_jiffies(1000);
3289
3290		cxd2841er_read_snr(fe);
3291		cxd2841er_read_ucblocks(fe);
3292		cxd2841er_read_ber(fe);
3293	} else {
3294		p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3295		p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3296		p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3297		p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3298	}
3299	return 0;
3300}
3301
3302static int cxd2841er_set_frontend_s(struct dvb_frontend *fe)
3303{
3304	int ret = 0, i, timeout, carr_offset;
3305	enum fe_status status;
3306	struct cxd2841er_priv *priv = fe->demodulator_priv;
3307	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3308	u32 symbol_rate = p->symbol_rate/1000;
3309
3310	dev_dbg(&priv->i2c->dev, "%s(): %s frequency=%d symbol_rate=%d xtal=%d\n",
3311		__func__,
3312		(p->delivery_system == SYS_DVBS ? "DVB-S" : "DVB-S2"),
3313		 p->frequency, symbol_rate, priv->xtal);
3314
3315	if (priv->flags & CXD2841ER_EARLY_TUNE)
3316		cxd2841er_tuner_set(fe);
3317
3318	switch (priv->state) {
3319	case STATE_SLEEP_S:
3320		ret = cxd2841er_sleep_s_to_active_s(
3321			priv, p->delivery_system, symbol_rate);
3322		break;
3323	case STATE_ACTIVE_S:
3324		ret = cxd2841er_retune_active(priv, p);
3325		break;
3326	default:
3327		dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3328			__func__, priv->state);
3329		ret = -EINVAL;
3330		goto done;
3331	}
3332	if (ret) {
3333		dev_dbg(&priv->i2c->dev, "%s(): tune failed\n", __func__);
3334		goto done;
3335	}
3336
3337	if (!(priv->flags & CXD2841ER_EARLY_TUNE))
3338		cxd2841er_tuner_set(fe);
3339
3340	cxd2841er_tune_done(priv);
3341	timeout = DIV_ROUND_UP(3000000, symbol_rate) + 150;
3342
3343	i = 0;
3344	do {
3345		usleep_range(CXD2841ER_DVBS_POLLING_INVL*1000,
3346			(CXD2841ER_DVBS_POLLING_INVL + 2) * 1000);
3347		cxd2841er_read_status_s(fe, &status);
3348		if (status & FE_HAS_LOCK)
3349			break;
3350		i++;
3351	} while (i < timeout / CXD2841ER_DVBS_POLLING_INVL);
3352
3353	if (status & FE_HAS_LOCK) {
3354		if (cxd2841er_get_carrier_offset_s_s2(
3355				priv, &carr_offset)) {
3356			ret = -EINVAL;
3357			goto done;
3358		}
3359		dev_dbg(&priv->i2c->dev, "%s(): carrier_offset=%d\n",
3360			__func__, carr_offset);
3361	}
3362done:
3363	/* Reset stats */
3364	p->strength.stat[0].scale = FE_SCALE_RELATIVE;
3365	p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3366	p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3367	p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3368	p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3369
3370	/* Reset the wait for jiffies logic */
3371	priv->stats_time = 0;
3372
3373	return ret;
3374}
3375
3376static int cxd2841er_set_frontend_tc(struct dvb_frontend *fe)
3377{
3378	int ret = 0, timeout;
3379	enum fe_status status;
3380	struct cxd2841er_priv *priv = fe->demodulator_priv;
3381	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3382
3383	dev_dbg(&priv->i2c->dev, "%s() delivery_system=%d bandwidth_hz=%d\n",
3384		 __func__, p->delivery_system, p->bandwidth_hz);
3385
3386	if (priv->flags & CXD2841ER_EARLY_TUNE)
3387		cxd2841er_tuner_set(fe);
3388
3389	/* deconfigure/put demod to sleep on delsys switch if active */
3390	if (priv->state == STATE_ACTIVE_TC &&
3391	    priv->system != p->delivery_system) {
3392		dev_dbg(&priv->i2c->dev, "%s(): old_delsys=%d, new_delsys=%d -> sleep\n",
3393			 __func__, priv->system, p->delivery_system);
3394		cxd2841er_sleep_tc(fe);
3395	}
3396
3397	if (p->delivery_system == SYS_DVBT) {
3398		priv->system = SYS_DVBT;
3399		switch (priv->state) {
3400		case STATE_SLEEP_TC:
3401			ret = cxd2841er_sleep_tc_to_active_t(
3402				priv, p->bandwidth_hz);
3403			break;
3404		case STATE_ACTIVE_TC:
3405			ret = cxd2841er_retune_active(priv, p);
3406			break;
3407		default:
3408			dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3409				__func__, priv->state);
3410			ret = -EINVAL;
3411		}
3412	} else if (p->delivery_system == SYS_DVBT2) {
3413		priv->system = SYS_DVBT2;
3414		cxd2841er_dvbt2_set_plp_config(priv,
3415			(int)(p->stream_id > 255), p->stream_id);
3416		cxd2841er_dvbt2_set_profile(priv, DVBT2_PROFILE_BASE);
3417		switch (priv->state) {
3418		case STATE_SLEEP_TC:
3419			ret = cxd2841er_sleep_tc_to_active_t2(priv,
3420				p->bandwidth_hz);
3421			break;
3422		case STATE_ACTIVE_TC:
3423			ret = cxd2841er_retune_active(priv, p);
3424			break;
3425		default:
3426			dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3427				__func__, priv->state);
3428			ret = -EINVAL;
3429		}
3430	} else if (p->delivery_system == SYS_ISDBT) {
3431		priv->system = SYS_ISDBT;
3432		switch (priv->state) {
3433		case STATE_SLEEP_TC:
3434			ret = cxd2841er_sleep_tc_to_active_i(
3435					priv, p->bandwidth_hz);
3436			break;
3437		case STATE_ACTIVE_TC:
3438			ret = cxd2841er_retune_active(priv, p);
3439			break;
3440		default:
3441			dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3442					__func__, priv->state);
3443			ret = -EINVAL;
3444		}
3445	} else if (p->delivery_system == SYS_DVBC_ANNEX_A ||
3446			p->delivery_system == SYS_DVBC_ANNEX_C) {
3447		priv->system = SYS_DVBC_ANNEX_A;
3448		/* correct bandwidth */
3449		if (p->bandwidth_hz != 6000000 &&
3450				p->bandwidth_hz != 7000000 &&
3451				p->bandwidth_hz != 8000000) {
3452			p->bandwidth_hz = 8000000;
3453			dev_dbg(&priv->i2c->dev, "%s(): forcing bandwidth to %d\n",
3454					__func__, p->bandwidth_hz);
3455		}
3456
3457		switch (priv->state) {
3458		case STATE_SLEEP_TC:
3459			ret = cxd2841er_sleep_tc_to_active_c(
3460				priv, p->bandwidth_hz);
3461			break;
3462		case STATE_ACTIVE_TC:
3463			ret = cxd2841er_retune_active(priv, p);
3464			break;
3465		default:
3466			dev_dbg(&priv->i2c->dev, "%s(): invalid state %d\n",
3467				__func__, priv->state);
3468			ret = -EINVAL;
3469		}
3470	} else {
3471		dev_dbg(&priv->i2c->dev,
3472			"%s(): invalid delivery system %d\n",
3473			__func__, p->delivery_system);
3474		ret = -EINVAL;
3475	}
3476	if (ret)
3477		goto done;
3478
3479	if (!(priv->flags & CXD2841ER_EARLY_TUNE))
3480		cxd2841er_tuner_set(fe);
3481
3482	cxd2841er_tune_done(priv);
3483
3484	if (priv->flags & CXD2841ER_NO_WAIT_LOCK)
3485		goto done;
3486
3487	timeout = 2500;
3488	while (timeout > 0) {
3489		ret = cxd2841er_read_status_tc(fe, &status);
3490		if (ret)
3491			goto done;
3492		if (status & FE_HAS_LOCK)
3493			break;
3494		msleep(20);
3495		timeout -= 20;
3496	}
3497	if (timeout < 0)
3498		dev_dbg(&priv->i2c->dev,
3499			"%s(): LOCK wait timeout\n", __func__);
3500done:
3501	return ret;
3502}
3503
3504static int cxd2841er_tune_s(struct dvb_frontend *fe,
3505			    bool re_tune,
3506			    unsigned int mode_flags,
3507			    unsigned int *delay,
3508			    enum fe_status *status)
3509{
3510	int ret, carrier_offset;
3511	struct cxd2841er_priv *priv = fe->demodulator_priv;
3512	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3513
3514	dev_dbg(&priv->i2c->dev, "%s() re_tune=%d\n", __func__, re_tune);
3515	if (re_tune) {
3516		ret = cxd2841er_set_frontend_s(fe);
3517		if (ret)
3518			return ret;
3519		cxd2841er_read_status_s(fe, status);
3520		if (*status & FE_HAS_LOCK) {
3521			if (cxd2841er_get_carrier_offset_s_s2(
3522					priv, &carrier_offset))
3523				return -EINVAL;
3524			p->frequency += carrier_offset;
3525			ret = cxd2841er_set_frontend_s(fe);
3526			if (ret)
3527				return ret;
3528		}
3529	}
3530	*delay = HZ / 5;
3531	return cxd2841er_read_status_s(fe, status);
3532}
3533
3534static int cxd2841er_tune_tc(struct dvb_frontend *fe,
3535			     bool re_tune,
3536			     unsigned int mode_flags,
3537			     unsigned int *delay,
3538			     enum fe_status *status)
3539{
3540	int ret, carrier_offset;
3541	struct cxd2841er_priv *priv = fe->demodulator_priv;
3542	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3543
3544	dev_dbg(&priv->i2c->dev, "%s(): re_tune %d bandwidth=%d\n", __func__,
3545			re_tune, p->bandwidth_hz);
3546	if (re_tune) {
3547		ret = cxd2841er_set_frontend_tc(fe);
3548		if (ret)
3549			return ret;
3550		cxd2841er_read_status_tc(fe, status);
3551		if (*status & FE_HAS_LOCK) {
3552			switch (priv->system) {
3553			case SYS_ISDBT:
3554				ret = cxd2841er_get_carrier_offset_i(
3555						priv, p->bandwidth_hz,
3556						&carrier_offset);
3557				if (ret)
3558					return ret;
3559				break;
3560			case SYS_DVBT:
3561				ret = cxd2841er_get_carrier_offset_t(
3562					priv, p->bandwidth_hz,
3563					&carrier_offset);
3564				if (ret)
3565					return ret;
3566				break;
3567			case SYS_DVBT2:
3568				ret = cxd2841er_get_carrier_offset_t2(
3569					priv, p->bandwidth_hz,
3570					&carrier_offset);
3571				if (ret)
3572					return ret;
3573				break;
3574			case SYS_DVBC_ANNEX_A:
3575				ret = cxd2841er_get_carrier_offset_c(
3576					priv, &carrier_offset);
3577				if (ret)
3578					return ret;
3579				break;
3580			default:
3581				dev_dbg(&priv->i2c->dev,
3582					"%s(): invalid delivery system %d\n",
3583					__func__, priv->system);
3584				return -EINVAL;
3585			}
3586			dev_dbg(&priv->i2c->dev, "%s(): carrier offset %d\n",
3587				__func__, carrier_offset);
3588			p->frequency += carrier_offset;
3589			ret = cxd2841er_set_frontend_tc(fe);
3590			if (ret)
3591				return ret;
3592		}
3593	}
3594	*delay = HZ / 5;
3595	return cxd2841er_read_status_tc(fe, status);
3596}
3597
3598static int cxd2841er_sleep_s(struct dvb_frontend *fe)
3599{
3600	struct cxd2841er_priv *priv = fe->demodulator_priv;
3601
3602	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3603	cxd2841er_active_s_to_sleep_s(fe->demodulator_priv);
3604	cxd2841er_sleep_s_to_shutdown(fe->demodulator_priv);
3605	return 0;
3606}
3607
3608static int cxd2841er_sleep_tc(struct dvb_frontend *fe)
3609{
3610	struct cxd2841er_priv *priv = fe->demodulator_priv;
3611
3612	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3613
3614	if (priv->state == STATE_ACTIVE_TC) {
3615		switch (priv->system) {
3616		case SYS_DVBT:
3617			cxd2841er_active_t_to_sleep_tc(priv);
3618			break;
3619		case SYS_DVBT2:
3620			cxd2841er_active_t2_to_sleep_tc(priv);
3621			break;
3622		case SYS_ISDBT:
3623			cxd2841er_active_i_to_sleep_tc(priv);
3624			break;
3625		case SYS_DVBC_ANNEX_A:
3626			cxd2841er_active_c_to_sleep_tc(priv);
3627			break;
3628		default:
3629			dev_warn(&priv->i2c->dev,
3630				"%s(): unknown delivery system %d\n",
3631				__func__, priv->system);
3632		}
3633	}
3634	if (priv->state != STATE_SLEEP_TC) {
3635		dev_err(&priv->i2c->dev, "%s(): invalid state %d\n",
3636			__func__, priv->state);
3637		return -EINVAL;
3638	}
3639	return 0;
3640}
3641
3642static int cxd2841er_shutdown_tc(struct dvb_frontend *fe)
3643{
3644	struct cxd2841er_priv *priv = fe->demodulator_priv;
3645
3646	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3647
3648	if (!cxd2841er_sleep_tc(fe))
3649		cxd2841er_sleep_tc_to_shutdown(priv);
3650	return 0;
3651}
3652
3653static int cxd2841er_send_burst(struct dvb_frontend *fe,
3654				enum fe_sec_mini_cmd burst)
3655{
3656	u8 data;
3657	struct cxd2841er_priv *priv  = fe->demodulator_priv;
3658
3659	dev_dbg(&priv->i2c->dev, "%s(): burst mode %s\n", __func__,
3660		(burst == SEC_MINI_A ? "A" : "B"));
3661	if (priv->state != STATE_SLEEP_S &&
3662			priv->state != STATE_ACTIVE_S) {
3663		dev_err(&priv->i2c->dev, "%s(): invalid demod state %d\n",
3664			__func__, priv->state);
3665		return -EINVAL;
3666	}
3667	data = (burst == SEC_MINI_A ? 0 : 1);
3668	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xbb);
3669	cxd2841er_write_reg(priv, I2C_SLVT, 0x34, 0x01);
3670	cxd2841er_write_reg(priv, I2C_SLVT, 0x35, data);
3671	return 0;
3672}
3673
3674static int cxd2841er_set_tone(struct dvb_frontend *fe,
3675			      enum fe_sec_tone_mode tone)
3676{
3677	u8 data;
3678	struct cxd2841er_priv *priv  = fe->demodulator_priv;
3679
3680	dev_dbg(&priv->i2c->dev, "%s(): tone %s\n", __func__,
3681		(tone == SEC_TONE_ON ? "On" : "Off"));
3682	if (priv->state != STATE_SLEEP_S &&
3683			priv->state != STATE_ACTIVE_S) {
3684		dev_err(&priv->i2c->dev, "%s(): invalid demod state %d\n",
3685			__func__, priv->state);
3686		return -EINVAL;
3687	}
3688	data = (tone == SEC_TONE_ON ? 1 : 0);
3689	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xbb);
3690	cxd2841er_write_reg(priv, I2C_SLVT, 0x36, data);
3691	return 0;
3692}
3693
3694static int cxd2841er_send_diseqc_msg(struct dvb_frontend *fe,
3695				     struct dvb_diseqc_master_cmd *cmd)
3696{
3697	int i;
3698	u8 data[12];
3699	struct cxd2841er_priv *priv  = fe->demodulator_priv;
3700
3701	if (priv->state != STATE_SLEEP_S &&
3702			priv->state != STATE_ACTIVE_S) {
3703		dev_err(&priv->i2c->dev, "%s(): invalid demod state %d\n",
3704			__func__, priv->state);
3705		return -EINVAL;
3706	}
3707	dev_dbg(&priv->i2c->dev,
3708		"%s(): cmd->len %d\n", __func__, cmd->msg_len);
3709	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xbb);
3710	/* DiDEqC enable */
3711	cxd2841er_write_reg(priv, I2C_SLVT, 0x33, 0x01);
3712	/* cmd1 length & data */
3713	cxd2841er_write_reg(priv, I2C_SLVT, 0x3d, cmd->msg_len);
3714	memset(data, 0, sizeof(data));
3715	for (i = 0; i < cmd->msg_len && i < sizeof(data); i++)
3716		data[i] = cmd->msg[i];
3717	cxd2841er_write_regs(priv, I2C_SLVT, 0x3e, data, sizeof(data));
3718	/* repeat count for cmd1 */
3719	cxd2841er_write_reg(priv, I2C_SLVT, 0x37, 1);
3720	/* repeat count for cmd2: always 0 */
3721	cxd2841er_write_reg(priv, I2C_SLVT, 0x38, 0);
3722	/* start transmit */
3723	cxd2841er_write_reg(priv, I2C_SLVT, 0x32, 0x01);
3724	/* wait for 1 sec timeout */
3725	for (i = 0; i < 50; i++) {
3726		cxd2841er_read_reg(priv, I2C_SLVT, 0x10, data);
3727		if (!data[0]) {
3728			dev_dbg(&priv->i2c->dev,
3729				"%s(): DiSEqC cmd has been sent\n", __func__);
3730			return 0;
3731		}
3732		msleep(20);
3733	}
3734	dev_dbg(&priv->i2c->dev,
3735		"%s(): DiSEqC cmd transmit timeout\n", __func__);
3736	return -ETIMEDOUT;
3737}
3738
3739static void cxd2841er_release(struct dvb_frontend *fe)
3740{
3741	struct cxd2841er_priv *priv  = fe->demodulator_priv;
3742
3743	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3744	kfree(priv);
3745}
3746
3747static int cxd2841er_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
3748{
3749	struct cxd2841er_priv *priv = fe->demodulator_priv;
3750
3751	dev_dbg(&priv->i2c->dev, "%s(): enable=%d\n", __func__, enable);
3752	cxd2841er_set_reg_bits(
3753		priv, I2C_SLVX, 0x8, (enable ? 0x01 : 0x00), 0x01);
3754	return 0;
3755}
3756
3757static enum dvbfe_algo cxd2841er_get_algo(struct dvb_frontend *fe)
3758{
3759	struct cxd2841er_priv *priv = fe->demodulator_priv;
3760
3761	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3762	return DVBFE_ALGO_HW;
3763}
3764
3765static void cxd2841er_init_stats(struct dvb_frontend *fe)
3766{
3767	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3768
3769	p->strength.len = 1;
3770	p->strength.stat[0].scale = FE_SCALE_RELATIVE;
3771	p->cnr.len = 1;
3772	p->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3773	p->block_error.len = 1;
3774	p->block_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3775	p->post_bit_error.len = 1;
3776	p->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3777	p->post_bit_count.len = 1;
3778	p->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
3779}
3780
3781
3782static int cxd2841er_init_s(struct dvb_frontend *fe)
3783{
3784	struct cxd2841er_priv *priv = fe->demodulator_priv;
3785
3786	/* sanity. force demod to SHUTDOWN state */
3787	if (priv->state == STATE_SLEEP_S) {
3788		dev_dbg(&priv->i2c->dev, "%s() forcing sleep->shutdown\n",
3789				__func__);
3790		cxd2841er_sleep_s_to_shutdown(priv);
3791	} else if (priv->state == STATE_ACTIVE_S) {
3792		dev_dbg(&priv->i2c->dev, "%s() forcing active->sleep->shutdown\n",
3793				__func__);
3794		cxd2841er_active_s_to_sleep_s(priv);
3795		cxd2841er_sleep_s_to_shutdown(priv);
3796	}
3797
3798	dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
3799	cxd2841er_shutdown_to_sleep_s(priv);
3800	/* SONY_DEMOD_CONFIG_SAT_IFAGCNEG set to 1 */
3801	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0xa0);
3802	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xb9, 0x01, 0x01);
3803
3804	cxd2841er_init_stats(fe);
3805
3806	return 0;
3807}
3808
3809static int cxd2841er_init_tc(struct dvb_frontend *fe)
3810{
3811	struct cxd2841er_priv *priv = fe->demodulator_priv;
3812	struct dtv_frontend_properties *p = &fe->dtv_property_cache;
3813
3814	dev_dbg(&priv->i2c->dev, "%s() bandwidth_hz=%d\n",
3815			__func__, p->bandwidth_hz);
3816	cxd2841er_shutdown_to_sleep_tc(priv);
3817	/* SONY_DEMOD_CONFIG_IFAGCNEG = 1 (0 for NO_AGCNEG */
3818	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
3819	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xcb,
3820		((priv->flags & CXD2841ER_NO_AGCNEG) ? 0x00 : 0x40), 0x40);
3821	/* SONY_DEMOD_CONFIG_IFAGC_ADC_FS = 0 */
3822	cxd2841er_write_reg(priv, I2C_SLVT, 0xcd, 0x50);
3823	/* SONY_DEMOD_CONFIG_PARALLEL_SEL = 1 */
3824	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x00);
3825	cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xc4,
3826		((priv->flags & CXD2841ER_TS_SERIAL) ? 0x80 : 0x00), 0x80);
3827
3828	/* clear TSCFG bits 3+4 */
3829	if (priv->flags & CXD2841ER_TSBITS)
3830		cxd2841er_set_reg_bits(priv, I2C_SLVT, 0xc4, 0x00, 0x18);
3831
3832	cxd2841er_init_stats(fe);
3833
3834	return 0;
3835}
3836
3837static const struct dvb_frontend_ops cxd2841er_dvbs_s2_ops;
3838static struct dvb_frontend_ops cxd2841er_t_c_ops;
3839
3840static struct dvb_frontend *cxd2841er_attach(struct cxd2841er_config *cfg,
3841					     struct i2c_adapter *i2c,
3842					     u8 system)
3843{
3844	u8 chip_id = 0;
3845	const char *type;
3846	const char *name;
3847	struct cxd2841er_priv *priv = NULL;
3848
3849	/* allocate memory for the internal state */
3850	priv = kzalloc(sizeof(struct cxd2841er_priv), GFP_KERNEL);
3851	if (!priv)
3852		return NULL;
3853	priv->i2c = i2c;
3854	priv->config = cfg;
3855	priv->i2c_addr_slvx = (cfg->i2c_addr + 4) >> 1;
3856	priv->i2c_addr_slvt = (cfg->i2c_addr) >> 1;
3857	priv->xtal = cfg->xtal;
3858	priv->flags = cfg->flags;
3859	priv->frontend.demodulator_priv = priv;
3860	dev_info(&priv->i2c->dev,
3861		"%s(): I2C adapter %p SLVX addr %x SLVT addr %x\n",
3862		__func__, priv->i2c,
3863		priv->i2c_addr_slvx, priv->i2c_addr_slvt);
3864	chip_id = cxd2841er_chip_id(priv);
3865	switch (chip_id) {
3866	case CXD2837ER_CHIP_ID:
3867		snprintf(cxd2841er_t_c_ops.info.name, 128,
3868				"Sony CXD2837ER DVB-T/T2/C demodulator");
3869		name = "CXD2837ER";
3870		type = "C/T/T2";
3871		break;
3872	case CXD2838ER_CHIP_ID:
3873		snprintf(cxd2841er_t_c_ops.info.name, 128,
3874				"Sony CXD2838ER ISDB-T demodulator");
3875		cxd2841er_t_c_ops.delsys[0] = SYS_ISDBT;
3876		cxd2841er_t_c_ops.delsys[1] = SYS_UNDEFINED;
3877		cxd2841er_t_c_ops.delsys[2] = SYS_UNDEFINED;
3878		name = "CXD2838ER";
3879		type = "ISDB-T";
3880		break;
3881	case CXD2841ER_CHIP_ID:
3882		snprintf(cxd2841er_t_c_ops.info.name, 128,
3883				"Sony CXD2841ER DVB-T/T2/C demodulator");
3884		name = "CXD2841ER";
3885		type = "T/T2/C/ISDB-T";
3886		break;
3887	case CXD2843ER_CHIP_ID:
3888		snprintf(cxd2841er_t_c_ops.info.name, 128,
3889				"Sony CXD2843ER DVB-T/T2/C/C2 demodulator");
3890		name = "CXD2843ER";
3891		type = "C/C2/T/T2";
3892		break;
3893	case CXD2854ER_CHIP_ID:
3894		snprintf(cxd2841er_t_c_ops.info.name, 128,
3895				"Sony CXD2854ER DVB-T/T2/C and ISDB-T demodulator");
3896		cxd2841er_t_c_ops.delsys[3] = SYS_ISDBT;
3897		name = "CXD2854ER";
3898		type = "C/C2/T/T2/ISDB-T";
3899		break;
3900	default:
3901		dev_err(&priv->i2c->dev, "%s(): invalid chip ID 0x%02x\n",
3902				__func__, chip_id);
3903		priv->frontend.demodulator_priv = NULL;
3904		kfree(priv);
3905		return NULL;
3906	}
3907
3908	/* create dvb_frontend */
3909	if (system == SYS_DVBS) {
3910		memcpy(&priv->frontend.ops,
3911			&cxd2841er_dvbs_s2_ops,
3912			sizeof(struct dvb_frontend_ops));
3913		type = "S/S2";
3914	} else {
3915		memcpy(&priv->frontend.ops,
3916			&cxd2841er_t_c_ops,
3917			sizeof(struct dvb_frontend_ops));
3918	}
3919
3920	dev_info(&priv->i2c->dev,
3921		"%s(): attaching %s DVB-%s frontend\n",
3922		__func__, name, type);
3923	dev_info(&priv->i2c->dev, "%s(): chip ID 0x%02x OK.\n",
3924		__func__, chip_id);
3925	return &priv->frontend;
3926}
3927
3928struct dvb_frontend *cxd2841er_attach_s(struct cxd2841er_config *cfg,
3929					struct i2c_adapter *i2c)
3930{
3931	return cxd2841er_attach(cfg, i2c, SYS_DVBS);
3932}
3933EXPORT_SYMBOL_GPL(cxd2841er_attach_s);
3934
3935struct dvb_frontend *cxd2841er_attach_t_c(struct cxd2841er_config *cfg,
3936					struct i2c_adapter *i2c)
3937{
3938	return cxd2841er_attach(cfg, i2c, 0);
3939}
3940EXPORT_SYMBOL_GPL(cxd2841er_attach_t_c);
3941
3942static const struct dvb_frontend_ops cxd2841er_dvbs_s2_ops = {
3943	.delsys = { SYS_DVBS, SYS_DVBS2 },
3944	.info = {
3945		.name		= "Sony CXD2841ER DVB-S/S2 demodulator",
3946		.frequency_min_hz	=  500 * MHz,
3947		.frequency_max_hz	= 2500 * MHz,
3948		.symbol_rate_min = 1000000,
3949		.symbol_rate_max = 45000000,
3950		.symbol_rate_tolerance = 500,
3951		.caps = FE_CAN_INVERSION_AUTO |
3952			FE_CAN_FEC_AUTO |
3953			FE_CAN_QPSK,
3954	},
3955	.init = cxd2841er_init_s,
3956	.sleep = cxd2841er_sleep_s,
3957	.release = cxd2841er_release,
3958	.set_frontend = cxd2841er_set_frontend_s,
3959	.get_frontend = cxd2841er_get_frontend,
3960	.read_status = cxd2841er_read_status_s,
3961	.i2c_gate_ctrl = cxd2841er_i2c_gate_ctrl,
3962	.get_frontend_algo = cxd2841er_get_algo,
3963	.set_tone = cxd2841er_set_tone,
3964	.diseqc_send_burst = cxd2841er_send_burst,
3965	.diseqc_send_master_cmd = cxd2841er_send_diseqc_msg,
3966	.tune = cxd2841er_tune_s
3967};
3968
3969static struct dvb_frontend_ops cxd2841er_t_c_ops = {
3970	.delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A },
3971	.info = {
3972		.name	= "", /* will set in attach function */
3973		.caps = FE_CAN_FEC_1_2 |
3974			FE_CAN_FEC_2_3 |
3975			FE_CAN_FEC_3_4 |
3976			FE_CAN_FEC_5_6 |
3977			FE_CAN_FEC_7_8 |
3978			FE_CAN_FEC_AUTO |
3979			FE_CAN_QPSK |
3980			FE_CAN_QAM_16 |
3981			FE_CAN_QAM_32 |
3982			FE_CAN_QAM_64 |
3983			FE_CAN_QAM_128 |
3984			FE_CAN_QAM_256 |
3985			FE_CAN_QAM_AUTO |
3986			FE_CAN_TRANSMISSION_MODE_AUTO |
3987			FE_CAN_GUARD_INTERVAL_AUTO |
3988			FE_CAN_HIERARCHY_AUTO |
3989			FE_CAN_MUTE_TS |
3990			FE_CAN_2G_MODULATION,
3991		.frequency_min_hz =   42 * MHz,
3992		.frequency_max_hz = 1002 * MHz,
3993		.symbol_rate_min = 870000,
3994		.symbol_rate_max = 11700000
3995	},
3996	.init = cxd2841er_init_tc,
3997	.sleep = cxd2841er_shutdown_tc,
3998	.release = cxd2841er_release,
3999	.set_frontend = cxd2841er_set_frontend_tc,
4000	.get_frontend = cxd2841er_get_frontend,
4001	.read_status = cxd2841er_read_status_tc,
4002	.tune = cxd2841er_tune_tc,
4003	.i2c_gate_ctrl = cxd2841er_i2c_gate_ctrl,
4004	.get_frontend_algo = cxd2841er_get_algo
4005};
4006
4007MODULE_DESCRIPTION("Sony CXD2837/38/41/43/54ER DVB-C/C2/T/T2/S/S2 demodulator driver");
4008MODULE_AUTHOR("Sergey Kozlov <serjk@netup.ru>, Abylay Ospan <aospan@netup.ru>");
4009MODULE_LICENSE("GPL");
4010