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82041c0a TM |
1 | /* |
2 | * Realtek RTL2832 DVB-T demodulator driver | |
3 | * | |
4 | * Copyright (C) 2012 Thomas Mair <thomas.mair86@gmail.com> | |
75c24005 | 5 | * Copyright (C) 2012-2014 Antti Palosaari <crope@iki.fi> |
82041c0a TM |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along | |
18 | * with this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
20 | */ | |
21 | ||
22 | #include "rtl2832_priv.h" | |
82041c0a | 23 | |
298f18a3 | 24 | #define REG_MASK(b) (BIT(b + 1) - 1) |
82041c0a TM |
25 | |
26 | static const struct rtl2832_reg_entry registers[] = { | |
eec21beb AP |
27 | [DVBT_SOFT_RST] = {0x101, 2, 2}, |
28 | [DVBT_IIC_REPEAT] = {0x101, 3, 3}, | |
29 | [DVBT_TR_WAIT_MIN_8K] = {0x188, 11, 2}, | |
30 | [DVBT_RSD_BER_FAIL_VAL] = {0x18f, 15, 0}, | |
31 | [DVBT_EN_BK_TRK] = {0x1a6, 7, 7}, | |
32 | [DVBT_AD_EN_REG] = {0x008, 7, 7}, | |
33 | [DVBT_AD_EN_REG1] = {0x008, 6, 6}, | |
34 | [DVBT_EN_BBIN] = {0x1b1, 0, 0}, | |
35 | [DVBT_MGD_THD0] = {0x195, 7, 0}, | |
36 | [DVBT_MGD_THD1] = {0x196, 7, 0}, | |
37 | [DVBT_MGD_THD2] = {0x197, 7, 0}, | |
38 | [DVBT_MGD_THD3] = {0x198, 7, 0}, | |
39 | [DVBT_MGD_THD4] = {0x199, 7, 0}, | |
40 | [DVBT_MGD_THD5] = {0x19a, 7, 0}, | |
41 | [DVBT_MGD_THD6] = {0x19b, 7, 0}, | |
42 | [DVBT_MGD_THD7] = {0x19c, 7, 0}, | |
43 | [DVBT_EN_CACQ_NOTCH] = {0x161, 4, 4}, | |
44 | [DVBT_AD_AV_REF] = {0x009, 6, 0}, | |
45 | [DVBT_REG_PI] = {0x00a, 2, 0}, | |
46 | [DVBT_PIP_ON] = {0x021, 3, 3}, | |
47 | [DVBT_SCALE1_B92] = {0x292, 7, 0}, | |
48 | [DVBT_SCALE1_B93] = {0x293, 7, 0}, | |
49 | [DVBT_SCALE1_BA7] = {0x2a7, 7, 0}, | |
50 | [DVBT_SCALE1_BA9] = {0x2a9, 7, 0}, | |
51 | [DVBT_SCALE1_BAA] = {0x2aa, 7, 0}, | |
52 | [DVBT_SCALE1_BAB] = {0x2ab, 7, 0}, | |
53 | [DVBT_SCALE1_BAC] = {0x2ac, 7, 0}, | |
54 | [DVBT_SCALE1_BB0] = {0x2b0, 7, 0}, | |
55 | [DVBT_SCALE1_BB1] = {0x2b1, 7, 0}, | |
56 | [DVBT_KB_P1] = {0x164, 3, 1}, | |
57 | [DVBT_KB_P2] = {0x164, 6, 4}, | |
58 | [DVBT_KB_P3] = {0x165, 2, 0}, | |
59 | [DVBT_OPT_ADC_IQ] = {0x006, 5, 4}, | |
60 | [DVBT_AD_AVI] = {0x009, 1, 0}, | |
61 | [DVBT_AD_AVQ] = {0x009, 3, 2}, | |
62 | [DVBT_K1_CR_STEP12] = {0x2ad, 9, 4}, | |
63 | [DVBT_TRK_KS_P2] = {0x16f, 2, 0}, | |
64 | [DVBT_TRK_KS_I2] = {0x170, 5, 3}, | |
65 | [DVBT_TR_THD_SET2] = {0x172, 3, 0}, | |
66 | [DVBT_TRK_KC_P2] = {0x173, 5, 3}, | |
67 | [DVBT_TRK_KC_I2] = {0x175, 2, 0}, | |
68 | [DVBT_CR_THD_SET2] = {0x176, 7, 6}, | |
69 | [DVBT_PSET_IFFREQ] = {0x119, 21, 0}, | |
70 | [DVBT_SPEC_INV] = {0x115, 0, 0}, | |
71 | [DVBT_RSAMP_RATIO] = {0x19f, 27, 2}, | |
72 | [DVBT_CFREQ_OFF_RATIO] = {0x19d, 23, 4}, | |
73 | [DVBT_FSM_STAGE] = {0x351, 6, 3}, | |
74 | [DVBT_RX_CONSTEL] = {0x33c, 3, 2}, | |
75 | [DVBT_RX_HIER] = {0x33c, 6, 4}, | |
76 | [DVBT_RX_C_RATE_LP] = {0x33d, 2, 0}, | |
77 | [DVBT_RX_C_RATE_HP] = {0x33d, 5, 3}, | |
78 | [DVBT_GI_IDX] = {0x351, 1, 0}, | |
79 | [DVBT_FFT_MODE_IDX] = {0x351, 2, 2}, | |
80 | [DVBT_RSD_BER_EST] = {0x34e, 15, 0}, | |
81 | [DVBT_CE_EST_EVM] = {0x40c, 15, 0}, | |
82 | [DVBT_RF_AGC_VAL] = {0x35b, 13, 0}, | |
83 | [DVBT_IF_AGC_VAL] = {0x359, 13, 0}, | |
84 | [DVBT_DAGC_VAL] = {0x305, 7, 0}, | |
85 | [DVBT_SFREQ_OFF] = {0x318, 13, 0}, | |
86 | [DVBT_CFREQ_OFF] = {0x35f, 17, 0}, | |
87 | [DVBT_POLAR_RF_AGC] = {0x00e, 1, 1}, | |
88 | [DVBT_POLAR_IF_AGC] = {0x00e, 0, 0}, | |
89 | [DVBT_AAGC_HOLD] = {0x104, 5, 5}, | |
90 | [DVBT_EN_RF_AGC] = {0x104, 6, 6}, | |
91 | [DVBT_EN_IF_AGC] = {0x104, 7, 7}, | |
92 | [DVBT_IF_AGC_MIN] = {0x108, 7, 0}, | |
93 | [DVBT_IF_AGC_MAX] = {0x109, 7, 0}, | |
94 | [DVBT_RF_AGC_MIN] = {0x10a, 7, 0}, | |
95 | [DVBT_RF_AGC_MAX] = {0x10b, 7, 0}, | |
96 | [DVBT_IF_AGC_MAN] = {0x10c, 6, 6}, | |
97 | [DVBT_IF_AGC_MAN_VAL] = {0x10c, 13, 0}, | |
98 | [DVBT_RF_AGC_MAN] = {0x10e, 6, 6}, | |
99 | [DVBT_RF_AGC_MAN_VAL] = {0x10e, 13, 0}, | |
100 | [DVBT_DAGC_TRG_VAL] = {0x112, 7, 0}, | |
101 | [DVBT_AGC_TARG_VAL_0] = {0x102, 0, 0}, | |
102 | [DVBT_AGC_TARG_VAL_8_1] = {0x103, 7, 0}, | |
103 | [DVBT_AAGC_LOOP_GAIN] = {0x1c7, 5, 1}, | |
104 | [DVBT_LOOP_GAIN2_3_0] = {0x104, 4, 1}, | |
105 | [DVBT_LOOP_GAIN2_4] = {0x105, 7, 7}, | |
106 | [DVBT_LOOP_GAIN3] = {0x1c8, 4, 0}, | |
107 | [DVBT_VTOP1] = {0x106, 5, 0}, | |
108 | [DVBT_VTOP2] = {0x1c9, 5, 0}, | |
109 | [DVBT_VTOP3] = {0x1ca, 5, 0}, | |
110 | [DVBT_KRF1] = {0x1cb, 7, 0}, | |
111 | [DVBT_KRF2] = {0x107, 7, 0}, | |
112 | [DVBT_KRF3] = {0x1cd, 7, 0}, | |
113 | [DVBT_KRF4] = {0x1ce, 7, 0}, | |
114 | [DVBT_EN_GI_PGA] = {0x1e5, 0, 0}, | |
115 | [DVBT_THD_LOCK_UP] = {0x1d9, 8, 0}, | |
116 | [DVBT_THD_LOCK_DW] = {0x1db, 8, 0}, | |
117 | [DVBT_THD_UP1] = {0x1dd, 7, 0}, | |
118 | [DVBT_THD_DW1] = {0x1de, 7, 0}, | |
119 | [DVBT_INTER_CNT_LEN] = {0x1d8, 3, 0}, | |
120 | [DVBT_GI_PGA_STATE] = {0x1e6, 3, 3}, | |
121 | [DVBT_EN_AGC_PGA] = {0x1d7, 0, 0}, | |
122 | [DVBT_CKOUTPAR] = {0x17b, 5, 5}, | |
123 | [DVBT_CKOUT_PWR] = {0x17b, 6, 6}, | |
124 | [DVBT_SYNC_DUR] = {0x17b, 7, 7}, | |
125 | [DVBT_ERR_DUR] = {0x17c, 0, 0}, | |
126 | [DVBT_SYNC_LVL] = {0x17c, 1, 1}, | |
127 | [DVBT_ERR_LVL] = {0x17c, 2, 2}, | |
128 | [DVBT_VAL_LVL] = {0x17c, 3, 3}, | |
129 | [DVBT_SERIAL] = {0x17c, 4, 4}, | |
130 | [DVBT_SER_LSB] = {0x17c, 5, 5}, | |
131 | [DVBT_CDIV_PH0] = {0x17d, 3, 0}, | |
132 | [DVBT_CDIV_PH1] = {0x17d, 7, 4}, | |
133 | [DVBT_MPEG_IO_OPT_2_2] = {0x006, 7, 7}, | |
134 | [DVBT_MPEG_IO_OPT_1_0] = {0x007, 7, 6}, | |
135 | [DVBT_CKOUTPAR_PIP] = {0x0b7, 4, 4}, | |
136 | [DVBT_CKOUT_PWR_PIP] = {0x0b7, 3, 3}, | |
137 | [DVBT_SYNC_LVL_PIP] = {0x0b7, 2, 2}, | |
138 | [DVBT_ERR_LVL_PIP] = {0x0b7, 1, 1}, | |
139 | [DVBT_VAL_LVL_PIP] = {0x0b7, 0, 0}, | |
140 | [DVBT_CKOUTPAR_PID] = {0x0b9, 4, 4}, | |
141 | [DVBT_CKOUT_PWR_PID] = {0x0b9, 3, 3}, | |
142 | [DVBT_SYNC_LVL_PID] = {0x0b9, 2, 2}, | |
143 | [DVBT_ERR_LVL_PID] = {0x0b9, 1, 1}, | |
144 | [DVBT_VAL_LVL_PID] = {0x0b9, 0, 0}, | |
145 | [DVBT_SM_PASS] = {0x193, 11, 0}, | |
146 | [DVBT_AD7_SETTING] = {0x011, 15, 0}, | |
147 | [DVBT_RSSI_R] = {0x301, 6, 0}, | |
148 | [DVBT_ACI_DET_IND] = {0x312, 0, 0}, | |
149 | [DVBT_REG_MON] = {0x00d, 1, 0}, | |
150 | [DVBT_REG_MONSEL] = {0x00d, 2, 2}, | |
151 | [DVBT_REG_GPE] = {0x00d, 7, 7}, | |
152 | [DVBT_REG_GPO] = {0x010, 0, 0}, | |
153 | [DVBT_REG_4MSEL] = {0x013, 0, 0}, | |
82041c0a TM |
154 | }; |
155 | ||
d1016581 | 156 | /* Our regmap is bypassing I2C adapter lock, thus we do it! */ |
bda977b7 MCC |
157 | static int rtl2832_bulk_write(struct i2c_client *client, unsigned int reg, |
158 | const void *val, size_t val_count) | |
82041c0a | 159 | { |
d1016581 | 160 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
82041c0a | 161 | int ret; |
82041c0a | 162 | |
d1016581 AP |
163 | i2c_lock_adapter(client->adapter); |
164 | ret = regmap_bulk_write(dev->regmap, reg, val, val_count); | |
165 | i2c_unlock_adapter(client->adapter); | |
82041c0a TM |
166 | return ret; |
167 | } | |
168 | ||
bda977b7 MCC |
169 | static int rtl2832_update_bits(struct i2c_client *client, unsigned int reg, |
170 | unsigned int mask, unsigned int val) | |
82041c0a | 171 | { |
d1016581 | 172 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
82041c0a | 173 | int ret; |
82041c0a | 174 | |
d1016581 AP |
175 | i2c_lock_adapter(client->adapter); |
176 | ret = regmap_update_bits(dev->regmap, reg, mask, val); | |
177 | i2c_unlock_adapter(client->adapter); | |
298efdd3 | 178 | return ret; |
82041c0a TM |
179 | } |
180 | ||
bda977b7 MCC |
181 | static int rtl2832_bulk_read(struct i2c_client *client, unsigned int reg, |
182 | void *val, size_t val_count) | |
82041c0a | 183 | { |
d1016581 | 184 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
82041c0a TM |
185 | int ret; |
186 | ||
d1016581 AP |
187 | i2c_lock_adapter(client->adapter); |
188 | ret = regmap_bulk_read(dev->regmap, reg, val, val_count); | |
189 | i2c_unlock_adapter(client->adapter); | |
190 | return ret; | |
191 | } | |
82041c0a | 192 | |
038c6f24 | 193 | static int rtl2832_rd_demod_reg(struct rtl2832_dev *dev, int reg, u32 *val) |
82041c0a | 194 | { |
6e6aac65 | 195 | struct i2c_client *client = dev->client; |
cd559e0b | 196 | int ret, i; |
eec21beb | 197 | u16 reg_start_addr; |
cd559e0b AP |
198 | u8 msb, lsb, reading[4], len; |
199 | u32 reading_tmp, mask; | |
82041c0a TM |
200 | |
201 | reg_start_addr = registers[reg].start_address; | |
202 | msb = registers[reg].msb; | |
203 | lsb = registers[reg].lsb; | |
82041c0a | 204 | len = (msb >> 3) + 1; |
298f18a3 | 205 | mask = REG_MASK(msb - lsb); |
82041c0a | 206 | |
eec21beb | 207 | ret = rtl2832_bulk_read(client, reg_start_addr, reading, len); |
82041c0a TM |
208 | if (ret) |
209 | goto err; | |
210 | ||
211 | reading_tmp = 0; | |
212 | for (i = 0; i < len; i++) | |
213 | reading_tmp |= reading[i] << ((len - 1 - i) * 8); | |
214 | ||
215 | *val = (reading_tmp >> lsb) & mask; | |
216 | ||
cd559e0b | 217 | return 0; |
82041c0a | 218 | err: |
6e6aac65 | 219 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a | 220 | return ret; |
82041c0a TM |
221 | } |
222 | ||
038c6f24 | 223 | static int rtl2832_wr_demod_reg(struct rtl2832_dev *dev, int reg, u32 val) |
82041c0a | 224 | { |
6e6aac65 | 225 | struct i2c_client *client = dev->client; |
82041c0a | 226 | int ret, i; |
eec21beb | 227 | u16 reg_start_addr; |
cd559e0b AP |
228 | u8 msb, lsb, reading[4], writing[4], len; |
229 | u32 reading_tmp, writing_tmp, mask; | |
82041c0a TM |
230 | |
231 | reg_start_addr = registers[reg].start_address; | |
232 | msb = registers[reg].msb; | |
233 | lsb = registers[reg].lsb; | |
82041c0a | 234 | len = (msb >> 3) + 1; |
298f18a3 | 235 | mask = REG_MASK(msb - lsb); |
82041c0a | 236 | |
eec21beb | 237 | ret = rtl2832_bulk_read(client, reg_start_addr, reading, len); |
82041c0a TM |
238 | if (ret) |
239 | goto err; | |
240 | ||
241 | reading_tmp = 0; | |
242 | for (i = 0; i < len; i++) | |
243 | reading_tmp |= reading[i] << ((len - 1 - i) * 8); | |
244 | ||
245 | writing_tmp = reading_tmp & ~(mask << lsb); | |
246 | writing_tmp |= ((val & mask) << lsb); | |
247 | ||
82041c0a TM |
248 | for (i = 0; i < len; i++) |
249 | writing[i] = (writing_tmp >> ((len - 1 - i) * 8)) & 0xff; | |
250 | ||
eec21beb | 251 | ret = rtl2832_bulk_write(client, reg_start_addr, writing, len); |
82041c0a TM |
252 | if (ret) |
253 | goto err; | |
254 | ||
cd559e0b | 255 | return 0; |
82041c0a | 256 | err: |
6e6aac65 | 257 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a | 258 | return ret; |
82041c0a TM |
259 | } |
260 | ||
884655ad | 261 | static int rtl2832_set_if(struct dvb_frontend *fe, u32 if_freq) |
82041c0a | 262 | { |
038c6f24 | 263 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 264 | struct i2c_client *client = dev->client; |
884655ad | 265 | int ret; |
82041c0a | 266 | u64 pset_iffreq; |
884655ad MCC |
267 | u8 en_bbin = (if_freq == 0 ? 0x1 : 0x0); |
268 | ||
269 | /* | |
270 | * PSET_IFFREQ = - floor((IfFreqHz % CrystalFreqHz) * pow(2, 22) | |
271 | * / CrystalFreqHz) | |
272 | */ | |
e1174d78 | 273 | pset_iffreq = if_freq % dev->pdata->clk; |
884655ad | 274 | pset_iffreq *= 0x400000; |
e1174d78 | 275 | pset_iffreq = div_u64(pset_iffreq, dev->pdata->clk); |
c8832e8f | 276 | pset_iffreq = -pset_iffreq; |
884655ad | 277 | pset_iffreq = pset_iffreq & 0x3fffff; |
6e6aac65 AP |
278 | dev_dbg(&client->dev, "if_frequency=%d pset_iffreq=%08x\n", |
279 | if_freq, (unsigned)pset_iffreq); | |
c8832e8f | 280 | |
038c6f24 | 281 | ret = rtl2832_wr_demod_reg(dev, DVBT_EN_BBIN, en_bbin); |
884655ad | 282 | if (ret) |
cd559e0b | 283 | goto err; |
884655ad | 284 | |
038c6f24 | 285 | ret = rtl2832_wr_demod_reg(dev, DVBT_PSET_IFFREQ, pset_iffreq); |
cd559e0b AP |
286 | if (ret) |
287 | goto err; | |
884655ad | 288 | |
cd559e0b AP |
289 | return 0; |
290 | err: | |
291 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
3ca2418d | 292 | return ret; |
884655ad MCC |
293 | } |
294 | ||
295 | static int rtl2832_init(struct dvb_frontend *fe) | |
296 | { | |
038c6f24 | 297 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 298 | struct i2c_client *client = dev->client; |
19d273d6 | 299 | struct dtv_frontend_properties *c = &dev->fe.dtv_property_cache; |
832cc7cd | 300 | const struct rtl2832_reg_value *init; |
884655ad | 301 | int i, ret, len; |
82041c0a TM |
302 | /* initialization values for the demodulator registers */ |
303 | struct rtl2832_reg_value rtl2832_initial_regs[] = { | |
304 | {DVBT_AD_EN_REG, 0x1}, | |
305 | {DVBT_AD_EN_REG1, 0x1}, | |
306 | {DVBT_RSD_BER_FAIL_VAL, 0x2800}, | |
307 | {DVBT_MGD_THD0, 0x10}, | |
308 | {DVBT_MGD_THD1, 0x20}, | |
309 | {DVBT_MGD_THD2, 0x20}, | |
310 | {DVBT_MGD_THD3, 0x40}, | |
311 | {DVBT_MGD_THD4, 0x22}, | |
312 | {DVBT_MGD_THD5, 0x32}, | |
313 | {DVBT_MGD_THD6, 0x37}, | |
314 | {DVBT_MGD_THD7, 0x39}, | |
315 | {DVBT_EN_BK_TRK, 0x0}, | |
316 | {DVBT_EN_CACQ_NOTCH, 0x0}, | |
317 | {DVBT_AD_AV_REF, 0x2a}, | |
318 | {DVBT_REG_PI, 0x6}, | |
319 | {DVBT_PIP_ON, 0x0}, | |
320 | {DVBT_CDIV_PH0, 0x8}, | |
321 | {DVBT_CDIV_PH1, 0x8}, | |
322 | {DVBT_SCALE1_B92, 0x4}, | |
323 | {DVBT_SCALE1_B93, 0xb0}, | |
324 | {DVBT_SCALE1_BA7, 0x78}, | |
325 | {DVBT_SCALE1_BA9, 0x28}, | |
326 | {DVBT_SCALE1_BAA, 0x59}, | |
327 | {DVBT_SCALE1_BAB, 0x83}, | |
328 | {DVBT_SCALE1_BAC, 0xd4}, | |
329 | {DVBT_SCALE1_BB0, 0x65}, | |
330 | {DVBT_SCALE1_BB1, 0x43}, | |
331 | {DVBT_KB_P1, 0x1}, | |
332 | {DVBT_KB_P2, 0x4}, | |
333 | {DVBT_KB_P3, 0x7}, | |
334 | {DVBT_K1_CR_STEP12, 0xa}, | |
335 | {DVBT_REG_GPE, 0x1}, | |
336 | {DVBT_SERIAL, 0x0}, | |
337 | {DVBT_CDIV_PH0, 0x9}, | |
338 | {DVBT_CDIV_PH1, 0x9}, | |
339 | {DVBT_MPEG_IO_OPT_2_2, 0x0}, | |
340 | {DVBT_MPEG_IO_OPT_1_0, 0x0}, | |
341 | {DVBT_TRK_KS_P2, 0x4}, | |
342 | {DVBT_TRK_KS_I2, 0x7}, | |
343 | {DVBT_TR_THD_SET2, 0x6}, | |
344 | {DVBT_TRK_KC_I2, 0x5}, | |
345 | {DVBT_CR_THD_SET2, 0x1}, | |
82041c0a TM |
346 | }; |
347 | ||
6e6aac65 | 348 | dev_dbg(&client->dev, "\n"); |
82041c0a | 349 | |
d884acad AP |
350 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0); |
351 | if (ret) | |
352 | goto err; | |
353 | ||
82041c0a | 354 | for (i = 0; i < ARRAY_SIZE(rtl2832_initial_regs); i++) { |
038c6f24 | 355 | ret = rtl2832_wr_demod_reg(dev, rtl2832_initial_regs[i].reg, |
82041c0a TM |
356 | rtl2832_initial_regs[i].value); |
357 | if (ret) | |
358 | goto err; | |
359 | } | |
360 | ||
832cc7cd | 361 | /* load tuner specific settings */ |
e1174d78 AP |
362 | dev_dbg(&client->dev, "load settings for tuner=%02x\n", |
363 | dev->pdata->tuner); | |
364 | switch (dev->pdata->tuner) { | |
f88aae9d AP |
365 | case RTL2832_TUNER_FC2580: |
366 | len = ARRAY_SIZE(rtl2832_tuner_init_fc2580); | |
367 | init = rtl2832_tuner_init_fc2580; | |
368 | break; | |
832cc7cd AP |
369 | case RTL2832_TUNER_FC0012: |
370 | case RTL2832_TUNER_FC0013: | |
371 | len = ARRAY_SIZE(rtl2832_tuner_init_fc0012); | |
372 | init = rtl2832_tuner_init_fc0012; | |
373 | break; | |
5db4187a AP |
374 | case RTL2832_TUNER_TUA9001: |
375 | len = ARRAY_SIZE(rtl2832_tuner_init_tua9001); | |
376 | init = rtl2832_tuner_init_tua9001; | |
377 | break; | |
7e688de0 AP |
378 | case RTL2832_TUNER_E4000: |
379 | len = ARRAY_SIZE(rtl2832_tuner_init_e4000); | |
380 | init = rtl2832_tuner_init_e4000; | |
381 | break; | |
fa4bfd2b | 382 | case RTL2832_TUNER_R820T: |
a26758ed | 383 | case RTL2832_TUNER_R828D: |
fa4bfd2b MCC |
384 | len = ARRAY_SIZE(rtl2832_tuner_init_r820t); |
385 | init = rtl2832_tuner_init_r820t; | |
386 | break; | |
699dcffc OS |
387 | case RTL2832_TUNER_SI2157: |
388 | len = ARRAY_SIZE(rtl2832_tuner_init_si2157); | |
389 | init = rtl2832_tuner_init_si2157; | |
390 | break; | |
832cc7cd AP |
391 | default: |
392 | ret = -EINVAL; | |
393 | goto err; | |
394 | } | |
395 | ||
396 | for (i = 0; i < len; i++) { | |
038c6f24 | 397 | ret = rtl2832_wr_demod_reg(dev, init[i].reg, init[i].value); |
832cc7cd AP |
398 | if (ret) |
399 | goto err; | |
400 | } | |
401 | ||
19d273d6 | 402 | /* init stats here in order signal app which stats are supported */ |
25ef9f55 AP |
403 | c->strength.len = 1; |
404 | c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
19d273d6 AP |
405 | c->cnr.len = 1; |
406 | c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
6b4fd018 AP |
407 | c->post_bit_error.len = 1; |
408 | c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
409 | c->post_bit_count.len = 1; | |
410 | c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
038c6f24 | 411 | dev->sleeping = false; |
82041c0a | 412 | |
cd559e0b | 413 | return 0; |
82041c0a | 414 | err: |
6e6aac65 | 415 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a TM |
416 | return ret; |
417 | } | |
418 | ||
419 | static int rtl2832_sleep(struct dvb_frontend *fe) | |
420 | { | |
038c6f24 | 421 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 422 | struct i2c_client *client = dev->client; |
a08c3781 | 423 | int ret; |
82041c0a | 424 | |
6e6aac65 | 425 | dev_dbg(&client->dev, "\n"); |
a08c3781 | 426 | |
038c6f24 | 427 | dev->sleeping = true; |
19d273d6 | 428 | dev->fe_status = 0; |
a08c3781 AP |
429 | |
430 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1); | |
431 | if (ret) | |
432 | goto err; | |
433 | ||
82041c0a | 434 | return 0; |
a08c3781 AP |
435 | err: |
436 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
437 | return ret; | |
82041c0a TM |
438 | } |
439 | ||
b0944ea2 | 440 | static int rtl2832_get_tune_settings(struct dvb_frontend *fe, |
82041c0a TM |
441 | struct dvb_frontend_tune_settings *s) |
442 | { | |
038c6f24 | 443 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 444 | struct i2c_client *client = dev->client; |
298efdd3 | 445 | |
6e6aac65 | 446 | dev_dbg(&client->dev, "\n"); |
82041c0a TM |
447 | s->min_delay_ms = 1000; |
448 | s->step_size = fe->ops.info.frequency_stepsize * 2; | |
449 | s->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
450 | return 0; | |
451 | } | |
452 | ||
453 | static int rtl2832_set_frontend(struct dvb_frontend *fe) | |
454 | { | |
038c6f24 | 455 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 456 | struct i2c_client *client = dev->client; |
82041c0a TM |
457 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
458 | int ret, i, j; | |
459 | u64 bw_mode, num, num2; | |
460 | u32 resamp_ratio, cfreq_off_ratio; | |
82041c0a TM |
461 | static u8 bw_params[3][32] = { |
462 | /* 6 MHz bandwidth */ | |
463 | { | |
464 | 0xf5, 0xff, 0x15, 0x38, 0x5d, 0x6d, 0x52, 0x07, 0xfa, 0x2f, | |
465 | 0x53, 0xf5, 0x3f, 0xca, 0x0b, 0x91, 0xea, 0x30, 0x63, 0xb2, | |
466 | 0x13, 0xda, 0x0b, 0xc4, 0x18, 0x7e, 0x16, 0x66, 0x08, 0x67, | |
467 | 0x19, 0xe0, | |
468 | }, | |
469 | ||
470 | /* 7 MHz bandwidth */ | |
471 | { | |
472 | 0xe7, 0xcc, 0xb5, 0xba, 0xe8, 0x2f, 0x67, 0x61, 0x00, 0xaf, | |
473 | 0x86, 0xf2, 0xbf, 0x59, 0x04, 0x11, 0xb6, 0x33, 0xa4, 0x30, | |
474 | 0x15, 0x10, 0x0a, 0x42, 0x18, 0xf8, 0x17, 0xd9, 0x07, 0x22, | |
475 | 0x19, 0x10, | |
476 | }, | |
477 | ||
478 | /* 8 MHz bandwidth */ | |
479 | { | |
480 | 0x09, 0xf6, 0xd2, 0xa7, 0x9a, 0xc9, 0x27, 0x77, 0x06, 0xbf, | |
481 | 0xec, 0xf4, 0x4f, 0x0b, 0xfc, 0x01, 0x63, 0x35, 0x54, 0xa7, | |
482 | 0x16, 0x66, 0x08, 0xb4, 0x19, 0x6e, 0x19, 0x65, 0x05, 0xc8, | |
483 | 0x19, 0xe0, | |
484 | }, | |
485 | }; | |
486 | ||
6e6aac65 AP |
487 | dev_dbg(&client->dev, "frequency=%u bandwidth_hz=%u inversion=%u\n", |
488 | c->frequency, c->bandwidth_hz, c->inversion); | |
82041c0a TM |
489 | |
490 | /* program tuner */ | |
491 | if (fe->ops.tuner_ops.set_params) | |
492 | fe->ops.tuner_ops.set_params(fe); | |
493 | ||
fa4bfd2b MCC |
494 | /* If the frontend has get_if_frequency(), use it */ |
495 | if (fe->ops.tuner_ops.get_if_frequency) { | |
496 | u32 if_freq; | |
fa4bfd2b MCC |
497 | |
498 | ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_freq); | |
499 | if (ret) | |
500 | goto err; | |
501 | ||
884655ad | 502 | ret = rtl2832_set_if(fe, if_freq); |
fa4bfd2b MCC |
503 | if (ret) |
504 | goto err; | |
505 | } | |
506 | ||
82041c0a TM |
507 | switch (c->bandwidth_hz) { |
508 | case 6000000: | |
509 | i = 0; | |
510 | bw_mode = 48000000; | |
511 | break; | |
512 | case 7000000: | |
513 | i = 1; | |
514 | bw_mode = 56000000; | |
515 | break; | |
516 | case 8000000: | |
517 | i = 2; | |
518 | bw_mode = 64000000; | |
519 | break; | |
520 | default: | |
6e6aac65 AP |
521 | dev_err(&client->dev, "invalid bandwidth_hz %u\n", |
522 | c->bandwidth_hz); | |
523 | ret = -EINVAL; | |
524 | goto err; | |
82041c0a TM |
525 | } |
526 | ||
fc4b3fa7 | 527 | for (j = 0; j < sizeof(bw_params[0]); j++) { |
eec21beb | 528 | ret = rtl2832_bulk_write(client, 0x11c + j, &bw_params[i][j], 1); |
82041c0a TM |
529 | if (ret) |
530 | goto err; | |
531 | } | |
532 | ||
533 | /* calculate and set resample ratio | |
534 | * RSAMP_RATIO = floor(CrystalFreqHz * 7 * pow(2, 22) | |
535 | * / ConstWithBandwidthMode) | |
536 | */ | |
e1174d78 | 537 | num = dev->pdata->clk * 7; |
82041c0a TM |
538 | num *= 0x400000; |
539 | num = div_u64(num, bw_mode); | |
540 | resamp_ratio = num & 0x3ffffff; | |
038c6f24 | 541 | ret = rtl2832_wr_demod_reg(dev, DVBT_RSAMP_RATIO, resamp_ratio); |
82041c0a TM |
542 | if (ret) |
543 | goto err; | |
544 | ||
545 | /* calculate and set cfreq off ratio | |
546 | * CFREQ_OFF_RATIO = - floor(ConstWithBandwidthMode * pow(2, 20) | |
547 | * / (CrystalFreqHz * 7)) | |
548 | */ | |
549 | num = bw_mode << 20; | |
e1174d78 | 550 | num2 = dev->pdata->clk * 7; |
82041c0a TM |
551 | num = div_u64(num, num2); |
552 | num = -num; | |
553 | cfreq_off_ratio = num & 0xfffff; | |
038c6f24 | 554 | ret = rtl2832_wr_demod_reg(dev, DVBT_CFREQ_OFF_RATIO, cfreq_off_ratio); |
82041c0a TM |
555 | if (ret) |
556 | goto err; | |
557 | ||
82041c0a | 558 | /* soft reset */ |
038c6f24 | 559 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1); |
82041c0a TM |
560 | if (ret) |
561 | goto err; | |
562 | ||
038c6f24 | 563 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0); |
82041c0a TM |
564 | if (ret) |
565 | goto err; | |
566 | ||
cd559e0b | 567 | return 0; |
82041c0a | 568 | err: |
6e6aac65 | 569 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a TM |
570 | return ret; |
571 | } | |
572 | ||
7e3e68bc MCC |
573 | static int rtl2832_get_frontend(struct dvb_frontend *fe, |
574 | struct dtv_frontend_properties *c) | |
0ce67a2a | 575 | { |
038c6f24 | 576 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 577 | struct i2c_client *client = dev->client; |
0ce67a2a AP |
578 | int ret; |
579 | u8 buf[3]; | |
580 | ||
038c6f24 | 581 | if (dev->sleeping) |
0ce67a2a AP |
582 | return 0; |
583 | ||
eec21beb | 584 | ret = rtl2832_bulk_read(client, 0x33c, buf, 2); |
0ce67a2a AP |
585 | if (ret) |
586 | goto err; | |
587 | ||
eec21beb | 588 | ret = rtl2832_bulk_read(client, 0x351, &buf[2], 1); |
0ce67a2a AP |
589 | if (ret) |
590 | goto err; | |
591 | ||
6e6aac65 | 592 | dev_dbg(&client->dev, "TPS=%*ph\n", 3, buf); |
0ce67a2a AP |
593 | |
594 | switch ((buf[0] >> 2) & 3) { | |
595 | case 0: | |
596 | c->modulation = QPSK; | |
597 | break; | |
598 | case 1: | |
599 | c->modulation = QAM_16; | |
600 | break; | |
601 | case 2: | |
602 | c->modulation = QAM_64; | |
603 | break; | |
604 | } | |
605 | ||
606 | switch ((buf[2] >> 2) & 1) { | |
607 | case 0: | |
608 | c->transmission_mode = TRANSMISSION_MODE_2K; | |
609 | break; | |
610 | case 1: | |
611 | c->transmission_mode = TRANSMISSION_MODE_8K; | |
612 | } | |
613 | ||
614 | switch ((buf[2] >> 0) & 3) { | |
615 | case 0: | |
616 | c->guard_interval = GUARD_INTERVAL_1_32; | |
617 | break; | |
618 | case 1: | |
619 | c->guard_interval = GUARD_INTERVAL_1_16; | |
620 | break; | |
621 | case 2: | |
622 | c->guard_interval = GUARD_INTERVAL_1_8; | |
623 | break; | |
624 | case 3: | |
625 | c->guard_interval = GUARD_INTERVAL_1_4; | |
626 | break; | |
627 | } | |
628 | ||
629 | switch ((buf[0] >> 4) & 7) { | |
630 | case 0: | |
631 | c->hierarchy = HIERARCHY_NONE; | |
632 | break; | |
633 | case 1: | |
634 | c->hierarchy = HIERARCHY_1; | |
635 | break; | |
636 | case 2: | |
637 | c->hierarchy = HIERARCHY_2; | |
638 | break; | |
639 | case 3: | |
640 | c->hierarchy = HIERARCHY_4; | |
641 | break; | |
642 | } | |
643 | ||
644 | switch ((buf[1] >> 3) & 7) { | |
645 | case 0: | |
646 | c->code_rate_HP = FEC_1_2; | |
647 | break; | |
648 | case 1: | |
649 | c->code_rate_HP = FEC_2_3; | |
650 | break; | |
651 | case 2: | |
652 | c->code_rate_HP = FEC_3_4; | |
653 | break; | |
654 | case 3: | |
655 | c->code_rate_HP = FEC_5_6; | |
656 | break; | |
657 | case 4: | |
658 | c->code_rate_HP = FEC_7_8; | |
659 | break; | |
660 | } | |
661 | ||
662 | switch ((buf[1] >> 0) & 7) { | |
663 | case 0: | |
664 | c->code_rate_LP = FEC_1_2; | |
665 | break; | |
666 | case 1: | |
667 | c->code_rate_LP = FEC_2_3; | |
668 | break; | |
669 | case 2: | |
670 | c->code_rate_LP = FEC_3_4; | |
671 | break; | |
672 | case 3: | |
673 | c->code_rate_LP = FEC_5_6; | |
674 | break; | |
675 | case 4: | |
676 | c->code_rate_LP = FEC_7_8; | |
677 | break; | |
678 | } | |
679 | ||
680 | return 0; | |
681 | err: | |
6e6aac65 | 682 | dev_dbg(&client->dev, "failed=%d\n", ret); |
0ce67a2a AP |
683 | return ret; |
684 | } | |
685 | ||
0df289a2 | 686 | static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status) |
82041c0a | 687 | { |
038c6f24 | 688 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 689 | struct i2c_client *client = dev->client; |
426508e6 | 690 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
82041c0a | 691 | int ret; |
20357756 | 692 | u32 uninitialized_var(tmp); |
426508e6 AP |
693 | u8 u8tmp, buf[2]; |
694 | u16 u16tmp; | |
82041c0a | 695 | |
6e6aac65 AP |
696 | dev_dbg(&client->dev, "\n"); |
697 | ||
698 | *status = 0; | |
038c6f24 | 699 | if (dev->sleeping) |
82041c0a TM |
700 | return 0; |
701 | ||
038c6f24 | 702 | ret = rtl2832_rd_demod_reg(dev, DVBT_FSM_STAGE, &tmp); |
82041c0a TM |
703 | if (ret) |
704 | goto err; | |
705 | ||
706 | if (tmp == 11) { | |
707 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | | |
708 | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; | |
1c7da405 | 709 | } else if (tmp == 10) { |
82041c0a TM |
710 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | |
711 | FE_HAS_VITERBI; | |
1c7da405 | 712 | } |
82041c0a | 713 | |
19d273d6 | 714 | dev->fe_status = *status; |
19d273d6 | 715 | |
25ef9f55 AP |
716 | /* signal strength */ |
717 | if (dev->fe_status & FE_HAS_SIGNAL) { | |
718 | /* read digital AGC */ | |
719 | ret = rtl2832_bulk_read(client, 0x305, &u8tmp, 1); | |
720 | if (ret) | |
721 | goto err; | |
722 | ||
723 | dev_dbg(&client->dev, "digital agc=%02x", u8tmp); | |
724 | ||
725 | u8tmp = ~u8tmp; | |
726 | u16tmp = u8tmp << 8 | u8tmp << 0; | |
727 | ||
728 | c->strength.stat[0].scale = FE_SCALE_RELATIVE; | |
729 | c->strength.stat[0].uvalue = u16tmp; | |
730 | } else { | |
731 | c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
732 | } | |
733 | ||
19d273d6 AP |
734 | /* CNR */ |
735 | if (dev->fe_status & FE_HAS_VITERBI) { | |
736 | unsigned hierarchy, constellation; | |
737 | #define CONSTELLATION_NUM 3 | |
738 | #define HIERARCHY_NUM 4 | |
739 | static const u32 constant[CONSTELLATION_NUM][HIERARCHY_NUM] = { | |
740 | {85387325, 85387325, 85387325, 85387325}, | |
741 | {86676178, 86676178, 87167949, 87795660}, | |
742 | {87659938, 87659938, 87885178, 88241743}, | |
743 | }; | |
744 | ||
745 | ret = rtl2832_bulk_read(client, 0x33c, &u8tmp, 1); | |
746 | if (ret) | |
747 | goto err; | |
748 | ||
749 | constellation = (u8tmp >> 2) & 0x03; /* [3:2] */ | |
750 | if (constellation > CONSTELLATION_NUM - 1) | |
426508e6 | 751 | goto err; |
19d273d6 AP |
752 | |
753 | hierarchy = (u8tmp >> 4) & 0x07; /* [6:4] */ | |
754 | if (hierarchy > HIERARCHY_NUM - 1) | |
426508e6 | 755 | goto err; |
19d273d6 AP |
756 | |
757 | ret = rtl2832_bulk_read(client, 0x40c, buf, 2); | |
758 | if (ret) | |
759 | goto err; | |
760 | ||
761 | u16tmp = buf[0] << 8 | buf[1] << 0; | |
762 | if (u16tmp) | |
763 | tmp = (constant[constellation][hierarchy] - | |
764 | intlog10(u16tmp)) / ((1 << 24) / 10000); | |
765 | else | |
766 | tmp = 0; | |
767 | ||
768 | dev_dbg(&client->dev, "cnr raw=%u\n", u16tmp); | |
769 | ||
770 | c->cnr.stat[0].scale = FE_SCALE_DECIBEL; | |
771 | c->cnr.stat[0].svalue = tmp; | |
772 | } else { | |
773 | c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
774 | } | |
775 | ||
6b4fd018 AP |
776 | /* BER */ |
777 | if (dev->fe_status & FE_HAS_LOCK) { | |
778 | ret = rtl2832_bulk_read(client, 0x34e, buf, 2); | |
779 | if (ret) | |
780 | goto err; | |
781 | ||
782 | u16tmp = buf[0] << 8 | buf[1] << 0; | |
783 | dev->post_bit_error += u16tmp; | |
784 | dev->post_bit_count += 1000000; | |
785 | ||
786 | dev_dbg(&client->dev, "ber errors=%u total=1000000\n", u16tmp); | |
787 | ||
788 | c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; | |
789 | c->post_bit_error.stat[0].uvalue = dev->post_bit_error; | |
790 | c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; | |
791 | c->post_bit_count.stat[0].uvalue = dev->post_bit_count; | |
792 | } else { | |
793 | c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
794 | c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; | |
795 | } | |
796 | ||
426508e6 | 797 | return 0; |
19d273d6 AP |
798 | err: |
799 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
426508e6 AP |
800 | return ret; |
801 | } | |
802 | ||
803 | static int rtl2832_read_snr(struct dvb_frontend *fe, u16 *snr) | |
804 | { | |
805 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; | |
806 | ||
807 | /* report SNR in resolution of 0.1 dB */ | |
808 | if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL) | |
809 | *snr = div_s64(c->cnr.stat[0].svalue, 100); | |
810 | else | |
811 | *snr = 0; | |
812 | ||
813 | return 0; | |
814 | } | |
815 | ||
816 | static int rtl2832_read_ber(struct dvb_frontend *fe, u32 *ber) | |
817 | { | |
818 | struct rtl2832_dev *dev = fe->demodulator_priv; | |
819 | ||
820 | *ber = (dev->post_bit_error - dev->post_bit_error_prev); | |
821 | dev->post_bit_error_prev = dev->post_bit_error; | |
822 | ||
823 | return 0; | |
19d273d6 AP |
824 | } |
825 | ||
92d20d9f | 826 | /* |
d1016581 AP |
827 | * I2C gate/mux/repeater logic |
828 | * We must use unlocked __i2c_transfer() here (through regmap) because of I2C | |
829 | * adapter lock is already taken by tuner driver. | |
830 | * There is delay mechanism to avoid unneeded I2C gate open / close. Gate close | |
831 | * is delayed here a little bit in order to see if there is sequence of I2C | |
92d20d9f | 832 | * messages sent to same I2C bus. |
92d20d9f AP |
833 | */ |
834 | static void rtl2832_i2c_gate_work(struct work_struct *work) | |
835 | { | |
d1016581 | 836 | struct rtl2832_dev *dev = container_of(work, struct rtl2832_dev, i2c_gate_work.work); |
6e6aac65 | 837 | struct i2c_client *client = dev->client; |
92d20d9f | 838 | int ret; |
6e6aac65 | 839 | |
d1016581 AP |
840 | /* close gate */ |
841 | ret = rtl2832_update_bits(dev->client, 0x101, 0x08, 0x00); | |
842 | if (ret) | |
92d20d9f AP |
843 | goto err; |
844 | ||
92d20d9f AP |
845 | return; |
846 | err: | |
6e6aac65 | 847 | dev_dbg(&client->dev, "failed=%d\n", ret); |
92d20d9f AP |
848 | } |
849 | ||
0ea872d4 | 850 | static int rtl2832_select(struct i2c_adapter *adap, void *mux_priv, u32 chan_id) |
8823f028 | 851 | { |
038c6f24 | 852 | struct rtl2832_dev *dev = mux_priv; |
6e6aac65 | 853 | struct i2c_client *client = dev->client; |
0ea872d4 | 854 | int ret; |
92d20d9f AP |
855 | |
856 | /* terminate possible gate closing */ | |
d1016581 | 857 | cancel_delayed_work(&dev->i2c_gate_work); |
8823f028 | 858 | |
d1016581 | 859 | /* |
d1016581 AP |
860 | * I2C adapter lock is already taken and due to that we will use |
861 | * regmap_update_bits() which does not lock again I2C adapter. | |
862 | */ | |
0d117901 | 863 | ret = regmap_update_bits(dev->regmap, 0x101, 0x08, 0x08); |
d1016581 | 864 | if (ret) |
0ea872d4 AP |
865 | goto err; |
866 | ||
0ea872d4 AP |
867 | return 0; |
868 | err: | |
6e6aac65 | 869 | dev_dbg(&client->dev, "failed=%d\n", ret); |
d1016581 | 870 | return ret; |
8823f028 AP |
871 | } |
872 | ||
92d20d9f | 873 | static int rtl2832_deselect(struct i2c_adapter *adap, void *mux_priv, |
d1016581 | 874 | u32 chan_id) |
92d20d9f | 875 | { |
038c6f24 | 876 | struct rtl2832_dev *dev = mux_priv; |
6e6aac65 | 877 | |
038c6f24 | 878 | schedule_delayed_work(&dev->i2c_gate_work, usecs_to_jiffies(100)); |
92d20d9f AP |
879 | return 0; |
880 | } | |
881 | ||
82041c0a TM |
882 | static struct dvb_frontend_ops rtl2832_ops = { |
883 | .delsys = { SYS_DVBT }, | |
884 | .info = { | |
885 | .name = "Realtek RTL2832 (DVB-T)", | |
886 | .frequency_min = 174000000, | |
887 | .frequency_max = 862000000, | |
888 | .frequency_stepsize = 166667, | |
889 | .caps = FE_CAN_FEC_1_2 | | |
890 | FE_CAN_FEC_2_3 | | |
891 | FE_CAN_FEC_3_4 | | |
892 | FE_CAN_FEC_5_6 | | |
893 | FE_CAN_FEC_7_8 | | |
894 | FE_CAN_FEC_AUTO | | |
895 | FE_CAN_QPSK | | |
896 | FE_CAN_QAM_16 | | |
897 | FE_CAN_QAM_64 | | |
898 | FE_CAN_QAM_AUTO | | |
899 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
900 | FE_CAN_GUARD_INTERVAL_AUTO | | |
901 | FE_CAN_HIERARCHY_AUTO | | |
902 | FE_CAN_RECOVER | | |
903 | FE_CAN_MUTE_TS | |
904 | }, | |
905 | ||
82041c0a TM |
906 | .init = rtl2832_init, |
907 | .sleep = rtl2832_sleep, | |
908 | ||
909 | .get_tune_settings = rtl2832_get_tune_settings, | |
910 | ||
911 | .set_frontend = rtl2832_set_frontend, | |
0ce67a2a | 912 | .get_frontend = rtl2832_get_frontend, |
82041c0a TM |
913 | |
914 | .read_status = rtl2832_read_status, | |
73983497 | 915 | .read_snr = rtl2832_read_snr, |
db32d74a | 916 | .read_ber = rtl2832_read_ber, |
82041c0a TM |
917 | }; |
918 | ||
dcadb82a AP |
919 | static bool rtl2832_volatile_reg(struct device *dev, unsigned int reg) |
920 | { | |
921 | switch (reg) { | |
922 | case 0x305: | |
923 | case 0x33c: | |
924 | case 0x34e: | |
925 | case 0x351: | |
926 | case 0x40c ... 0x40d: | |
927 | return true; | |
928 | default: | |
929 | break; | |
930 | } | |
931 | ||
932 | return false; | |
933 | } | |
934 | ||
d1016581 AP |
935 | /* |
936 | * We implement own I2C access routines for regmap in order to get manual access | |
937 | * to I2C adapter lock, which is needed for I2C mux adapter. | |
938 | */ | |
939 | static int rtl2832_regmap_read(void *context, const void *reg_buf, | |
940 | size_t reg_size, void *val_buf, size_t val_size) | |
941 | { | |
942 | struct i2c_client *client = context; | |
943 | int ret; | |
944 | struct i2c_msg msg[2] = { | |
945 | { | |
946 | .addr = client->addr, | |
947 | .flags = 0, | |
948 | .len = reg_size, | |
949 | .buf = (u8 *)reg_buf, | |
950 | }, { | |
951 | .addr = client->addr, | |
952 | .flags = I2C_M_RD, | |
953 | .len = val_size, | |
954 | .buf = val_buf, | |
955 | } | |
956 | }; | |
957 | ||
958 | ret = __i2c_transfer(client->adapter, msg, 2); | |
959 | if (ret != 2) { | |
891e0559 AP |
960 | dev_warn(&client->dev, "i2c reg read failed %d reg %02x\n", |
961 | ret, *(u8 *)reg_buf); | |
d1016581 AP |
962 | if (ret >= 0) |
963 | ret = -EREMOTEIO; | |
964 | return ret; | |
965 | } | |
966 | return 0; | |
967 | } | |
968 | ||
969 | static int rtl2832_regmap_write(void *context, const void *data, size_t count) | |
970 | { | |
971 | struct i2c_client *client = context; | |
972 | int ret; | |
973 | struct i2c_msg msg[1] = { | |
974 | { | |
975 | .addr = client->addr, | |
976 | .flags = 0, | |
977 | .len = count, | |
978 | .buf = (u8 *)data, | |
979 | } | |
980 | }; | |
981 | ||
982 | ret = __i2c_transfer(client->adapter, msg, 1); | |
983 | if (ret != 1) { | |
891e0559 AP |
984 | dev_warn(&client->dev, "i2c reg write failed %d reg %02x\n", |
985 | ret, *(u8 *)data); | |
d1016581 AP |
986 | if (ret >= 0) |
987 | ret = -EREMOTEIO; | |
988 | return ret; | |
989 | } | |
990 | return 0; | |
991 | } | |
992 | ||
993 | static int rtl2832_regmap_gather_write(void *context, const void *reg, | |
994 | size_t reg_len, const void *val, | |
995 | size_t val_len) | |
996 | { | |
997 | struct i2c_client *client = context; | |
998 | int ret; | |
999 | u8 buf[256]; | |
1000 | struct i2c_msg msg[1] = { | |
1001 | { | |
1002 | .addr = client->addr, | |
1003 | .flags = 0, | |
1004 | .len = 1 + val_len, | |
1005 | .buf = buf, | |
1006 | } | |
1007 | }; | |
1008 | ||
1009 | buf[0] = *(u8 const *)reg; | |
1010 | memcpy(&buf[1], val, val_len); | |
1011 | ||
1012 | ret = __i2c_transfer(client->adapter, msg, 1); | |
1013 | if (ret != 1) { | |
891e0559 AP |
1014 | dev_warn(&client->dev, "i2c reg write failed %d reg %02x\n", |
1015 | ret, *(u8 const *)reg); | |
d1016581 AP |
1016 | if (ret >= 0) |
1017 | ret = -EREMOTEIO; | |
1018 | return ret; | |
1019 | } | |
1020 | return 0; | |
1021 | } | |
1022 | ||
b410dae4 AP |
1023 | /* |
1024 | * FIXME: Hack. Implement own regmap locking in order to silence lockdep | |
1025 | * recursive lock warning. That happens when regmap I2C client calls I2C mux | |
1026 | * adapter, which leads demod I2C repeater enable via demod regmap. Operation | |
1027 | * takes two regmap locks recursively - but those are different regmap instances | |
1028 | * in a two different I2C drivers, so it is not deadlock. Proper fix is to make | |
1029 | * regmap aware of lockdep. | |
1030 | */ | |
1031 | static void rtl2832_regmap_lock(void *__dev) | |
1032 | { | |
1033 | struct rtl2832_dev *dev = __dev; | |
1034 | struct i2c_client *client = dev->client; | |
1035 | ||
1036 | dev_dbg(&client->dev, "\n"); | |
1037 | mutex_lock(&dev->regmap_mutex); | |
1038 | } | |
1039 | ||
1040 | static void rtl2832_regmap_unlock(void *__dev) | |
1041 | { | |
1042 | struct rtl2832_dev *dev = __dev; | |
1043 | struct i2c_client *client = dev->client; | |
1044 | ||
1045 | dev_dbg(&client->dev, "\n"); | |
1046 | mutex_unlock(&dev->regmap_mutex); | |
1047 | } | |
1048 | ||
6f5f6ee2 AP |
1049 | static struct dvb_frontend *rtl2832_get_dvb_frontend(struct i2c_client *client) |
1050 | { | |
038c6f24 | 1051 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
6f5f6ee2 AP |
1052 | |
1053 | dev_dbg(&client->dev, "\n"); | |
1054 | return &dev->fe; | |
1055 | } | |
1056 | ||
cd559e0b | 1057 | static struct i2c_adapter *rtl2832_get_i2c_adapter(struct i2c_client *client) |
6f5f6ee2 | 1058 | { |
038c6f24 | 1059 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
6f5f6ee2 AP |
1060 | |
1061 | dev_dbg(&client->dev, "\n"); | |
1062 | return dev->i2c_adapter_tuner; | |
1063 | } | |
1064 | ||
d884acad | 1065 | static int rtl2832_slave_ts_ctrl(struct i2c_client *client, bool enable) |
6f5f6ee2 | 1066 | { |
038c6f24 | 1067 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
6f5f6ee2 AP |
1068 | int ret; |
1069 | ||
d884acad | 1070 | dev_dbg(&client->dev, "enable=%d\n", enable); |
6f5f6ee2 | 1071 | |
d884acad AP |
1072 | if (enable) { |
1073 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0); | |
1074 | if (ret) | |
1075 | goto err; | |
1076 | ret = rtl2832_bulk_write(client, 0x10c, "\x5f\xff", 2); | |
1077 | if (ret) | |
1078 | goto err; | |
1079 | ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x1); | |
1080 | if (ret) | |
1081 | goto err; | |
1082 | ret = rtl2832_bulk_write(client, 0x0bc, "\x18", 1); | |
1083 | if (ret) | |
1084 | goto err; | |
1085 | ret = rtl2832_bulk_write(client, 0x192, "\x7f\xf7\xff", 3); | |
1086 | if (ret) | |
1087 | goto err; | |
1088 | } else { | |
1089 | ret = rtl2832_bulk_write(client, 0x192, "\x00\x0f\xff", 3); | |
1090 | if (ret) | |
1091 | goto err; | |
1092 | ret = rtl2832_bulk_write(client, 0x0bc, "\x08", 1); | |
1093 | if (ret) | |
1094 | goto err; | |
1095 | ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x0); | |
1096 | if (ret) | |
1097 | goto err; | |
1098 | ret = rtl2832_bulk_write(client, 0x10c, "\x00\x00", 2); | |
1099 | if (ret) | |
1100 | goto err; | |
1101 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1); | |
1102 | if (ret) | |
1103 | goto err; | |
1104 | } | |
6f5f6ee2 AP |
1105 | |
1106 | return 0; | |
1107 | err: | |
1108 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
1109 | return ret; | |
1110 | } | |
1111 | ||
4b01e01a AP |
1112 | static int rtl2832_pid_filter_ctrl(struct dvb_frontend *fe, int onoff) |
1113 | { | |
1114 | struct rtl2832_dev *dev = fe->demodulator_priv; | |
1115 | struct i2c_client *client = dev->client; | |
1116 | int ret; | |
1117 | u8 u8tmp; | |
1118 | ||
1119 | dev_dbg(&client->dev, "onoff=%d\n", onoff); | |
1120 | ||
1121 | /* enable / disable PID filter */ | |
1122 | if (onoff) | |
1123 | u8tmp = 0x80; | |
1124 | else | |
1125 | u8tmp = 0x00; | |
1126 | ||
1127 | ret = rtl2832_update_bits(client, 0x061, 0xc0, u8tmp); | |
1128 | if (ret) | |
1129 | goto err; | |
1130 | ||
1131 | return 0; | |
1132 | err: | |
1133 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
1134 | return ret; | |
1135 | } | |
1136 | ||
1137 | static int rtl2832_pid_filter(struct dvb_frontend *fe, u8 index, u16 pid, | |
1138 | int onoff) | |
1139 | { | |
1140 | struct rtl2832_dev *dev = fe->demodulator_priv; | |
1141 | struct i2c_client *client = dev->client; | |
1142 | int ret; | |
1143 | u8 buf[4]; | |
1144 | ||
1145 | dev_dbg(&client->dev, "index=%d pid=%04x onoff=%d\n", | |
1146 | index, pid, onoff); | |
1147 | ||
1148 | /* skip invalid PIDs (0x2000) */ | |
1149 | if (pid > 0x1fff || index > 32) | |
1150 | return 0; | |
1151 | ||
1152 | if (onoff) | |
1153 | set_bit(index, &dev->filters); | |
1154 | else | |
1155 | clear_bit(index, &dev->filters); | |
1156 | ||
1157 | /* enable / disable PIDs */ | |
1158 | buf[0] = (dev->filters >> 0) & 0xff; | |
1159 | buf[1] = (dev->filters >> 8) & 0xff; | |
1160 | buf[2] = (dev->filters >> 16) & 0xff; | |
1161 | buf[3] = (dev->filters >> 24) & 0xff; | |
1162 | ret = rtl2832_bulk_write(client, 0x062, buf, 4); | |
1163 | if (ret) | |
1164 | goto err; | |
1165 | ||
1166 | /* add PID */ | |
1167 | buf[0] = (pid >> 8) & 0xff; | |
1168 | buf[1] = (pid >> 0) & 0xff; | |
1169 | ret = rtl2832_bulk_write(client, 0x066 + 2 * index, buf, 2); | |
1170 | if (ret) | |
1171 | goto err; | |
1172 | ||
1173 | return 0; | |
1174 | err: | |
1175 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
1176 | return ret; | |
1177 | } | |
1178 | ||
c2c8386f AP |
1179 | static int rtl2832_probe(struct i2c_client *client, |
1180 | const struct i2c_device_id *id) | |
1181 | { | |
1182 | struct rtl2832_platform_data *pdata = client->dev.platform_data; | |
c2c8386f | 1183 | struct i2c_adapter *i2c = client->adapter; |
038c6f24 | 1184 | struct rtl2832_dev *dev; |
c2c8386f AP |
1185 | int ret; |
1186 | u8 tmp; | |
d1016581 AP |
1187 | static const struct regmap_bus regmap_bus = { |
1188 | .read = rtl2832_regmap_read, | |
1189 | .write = rtl2832_regmap_write, | |
1190 | .gather_write = rtl2832_regmap_gather_write, | |
1191 | .val_format_endian_default = REGMAP_ENDIAN_NATIVE, | |
1192 | }; | |
1193 | static const struct regmap_range_cfg regmap_range_cfg[] = { | |
1194 | { | |
1195 | .selector_reg = 0x00, | |
1196 | .selector_mask = 0xff, | |
1197 | .selector_shift = 0, | |
1198 | .window_start = 0, | |
1199 | .window_len = 0x100, | |
1200 | .range_min = 0 * 0x100, | |
1201 | .range_max = 5 * 0x100, | |
1202 | }, | |
1203 | }; | |
c2c8386f AP |
1204 | |
1205 | dev_dbg(&client->dev, "\n"); | |
1206 | ||
c2c8386f | 1207 | /* allocate memory for the internal state */ |
038c6f24 AP |
1208 | dev = kzalloc(sizeof(struct rtl2832_dev), GFP_KERNEL); |
1209 | if (dev == NULL) { | |
c2c8386f AP |
1210 | ret = -ENOMEM; |
1211 | goto err; | |
1212 | } | |
1213 | ||
038c6f24 | 1214 | /* setup the state */ |
d1016581 | 1215 | i2c_set_clientdata(client, dev); |
038c6f24 | 1216 | dev->client = client; |
e1174d78 | 1217 | dev->pdata = client->dev.platform_data; |
038c6f24 | 1218 | dev->sleeping = true; |
038c6f24 | 1219 | INIT_DELAYED_WORK(&dev->i2c_gate_work, rtl2832_i2c_gate_work); |
d1016581 | 1220 | /* create regmap */ |
b410dae4 AP |
1221 | mutex_init(&dev->regmap_mutex); |
1222 | dev->regmap_config.reg_bits = 8, | |
1223 | dev->regmap_config.val_bits = 8, | |
1224 | dev->regmap_config.lock = rtl2832_regmap_lock, | |
1225 | dev->regmap_config.unlock = rtl2832_regmap_unlock, | |
1226 | dev->regmap_config.lock_arg = dev, | |
1227 | dev->regmap_config.volatile_reg = rtl2832_volatile_reg, | |
1228 | dev->regmap_config.max_register = 5 * 0x100, | |
1229 | dev->regmap_config.ranges = regmap_range_cfg, | |
1230 | dev->regmap_config.num_ranges = ARRAY_SIZE(regmap_range_cfg), | |
b3b2bf82 | 1231 | dev->regmap_config.cache_type = REGCACHE_NONE, |
d1016581 | 1232 | dev->regmap = regmap_init(&client->dev, ®map_bus, client, |
b410dae4 | 1233 | &dev->regmap_config); |
d1016581 AP |
1234 | if (IS_ERR(dev->regmap)) { |
1235 | ret = PTR_ERR(dev->regmap); | |
1236 | goto err_kfree; | |
1237 | } | |
c2c8386f AP |
1238 | |
1239 | /* check if the demod is there */ | |
eec21beb | 1240 | ret = rtl2832_bulk_read(client, 0x000, &tmp, 1); |
c2c8386f | 1241 | if (ret) |
0d117901 | 1242 | goto err_regmap_exit; |
c2c8386f AP |
1243 | |
1244 | /* create muxed i2c adapter for demod tuner bus */ | |
038c6f24 | 1245 | dev->i2c_adapter_tuner = i2c_add_mux_adapter(i2c, &i2c->dev, dev, |
0d117901 | 1246 | 0, 0, 0, rtl2832_select, rtl2832_deselect); |
038c6f24 | 1247 | if (dev->i2c_adapter_tuner == NULL) { |
c2c8386f | 1248 | ret = -ENODEV; |
0d117901 | 1249 | goto err_regmap_exit; |
c2c8386f AP |
1250 | } |
1251 | ||
1252 | /* create dvb_frontend */ | |
038c6f24 AP |
1253 | memcpy(&dev->fe.ops, &rtl2832_ops, sizeof(struct dvb_frontend_ops)); |
1254 | dev->fe.demodulator_priv = dev; | |
6f5f6ee2 AP |
1255 | |
1256 | /* setup callbacks */ | |
1257 | pdata->get_dvb_frontend = rtl2832_get_dvb_frontend; | |
cd559e0b | 1258 | pdata->get_i2c_adapter = rtl2832_get_i2c_adapter; |
d884acad | 1259 | pdata->slave_ts_ctrl = rtl2832_slave_ts_ctrl; |
4b01e01a AP |
1260 | pdata->pid_filter = rtl2832_pid_filter; |
1261 | pdata->pid_filter_ctrl = rtl2832_pid_filter_ctrl; | |
0aa32ef9 AP |
1262 | pdata->bulk_read = rtl2832_bulk_read; |
1263 | pdata->bulk_write = rtl2832_bulk_write; | |
1264 | pdata->update_bits = rtl2832_update_bits; | |
c2c8386f AP |
1265 | |
1266 | dev_info(&client->dev, "Realtek RTL2832 successfully attached\n"); | |
1267 | return 0; | |
d1016581 AP |
1268 | err_regmap_exit: |
1269 | regmap_exit(dev->regmap); | |
c2c8386f | 1270 | err_kfree: |
038c6f24 | 1271 | kfree(dev); |
c2c8386f AP |
1272 | err: |
1273 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
1274 | return ret; | |
1275 | } | |
1276 | ||
1277 | static int rtl2832_remove(struct i2c_client *client) | |
1278 | { | |
038c6f24 | 1279 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
c2c8386f AP |
1280 | |
1281 | dev_dbg(&client->dev, "\n"); | |
1282 | ||
038c6f24 | 1283 | cancel_delayed_work_sync(&dev->i2c_gate_work); |
c2c8386f | 1284 | |
038c6f24 | 1285 | i2c_del_mux_adapter(dev->i2c_adapter_tuner); |
c2c8386f | 1286 | |
d1016581 AP |
1287 | regmap_exit(dev->regmap); |
1288 | ||
038c6f24 | 1289 | kfree(dev); |
c2c8386f AP |
1290 | |
1291 | return 0; | |
1292 | } | |
1293 | ||
1294 | static const struct i2c_device_id rtl2832_id_table[] = { | |
1295 | {"rtl2832", 0}, | |
1296 | {} | |
1297 | }; | |
1298 | MODULE_DEVICE_TABLE(i2c, rtl2832_id_table); | |
1299 | ||
1300 | static struct i2c_driver rtl2832_driver = { | |
1301 | .driver = { | |
c2c8386f AP |
1302 | .name = "rtl2832", |
1303 | }, | |
1304 | .probe = rtl2832_probe, | |
1305 | .remove = rtl2832_remove, | |
1306 | .id_table = rtl2832_id_table, | |
1307 | }; | |
1308 | ||
1309 | module_i2c_driver(rtl2832_driver); | |
1310 | ||
82041c0a | 1311 | MODULE_AUTHOR("Thomas Mair <mair.thomas86@gmail.com>"); |
75c24005 | 1312 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); |
82041c0a TM |
1313 | MODULE_DESCRIPTION("Realtek RTL2832 DVB-T demodulator driver"); |
1314 | MODULE_LICENSE("GPL"); |