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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> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 | */ | |
20 | ||
21 | #include "rtl2832_priv.h" | |
73983497 | 22 | #include "dvb_math.h" |
298f18a3 | 23 | #include <linux/bitops.h> |
82041c0a | 24 | |
298f18a3 | 25 | #define REG_MASK(b) (BIT(b + 1) - 1) |
82041c0a TM |
26 | |
27 | static const struct rtl2832_reg_entry registers[] = { | |
28 | [DVBT_SOFT_RST] = {0x1, 0x1, 2, 2}, | |
29 | [DVBT_IIC_REPEAT] = {0x1, 0x1, 3, 3}, | |
30 | [DVBT_TR_WAIT_MIN_8K] = {0x1, 0x88, 11, 2}, | |
31 | [DVBT_RSD_BER_FAIL_VAL] = {0x1, 0x8f, 15, 0}, | |
32 | [DVBT_EN_BK_TRK] = {0x1, 0xa6, 7, 7}, | |
33 | [DVBT_AD_EN_REG] = {0x0, 0x8, 7, 7}, | |
34 | [DVBT_AD_EN_REG1] = {0x0, 0x8, 6, 6}, | |
35 | [DVBT_EN_BBIN] = {0x1, 0xb1, 0, 0}, | |
36 | [DVBT_MGD_THD0] = {0x1, 0x95, 7, 0}, | |
37 | [DVBT_MGD_THD1] = {0x1, 0x96, 7, 0}, | |
38 | [DVBT_MGD_THD2] = {0x1, 0x97, 7, 0}, | |
39 | [DVBT_MGD_THD3] = {0x1, 0x98, 7, 0}, | |
40 | [DVBT_MGD_THD4] = {0x1, 0x99, 7, 0}, | |
41 | [DVBT_MGD_THD5] = {0x1, 0x9a, 7, 0}, | |
42 | [DVBT_MGD_THD6] = {0x1, 0x9b, 7, 0}, | |
43 | [DVBT_MGD_THD7] = {0x1, 0x9c, 7, 0}, | |
44 | [DVBT_EN_CACQ_NOTCH] = {0x1, 0x61, 4, 4}, | |
45 | [DVBT_AD_AV_REF] = {0x0, 0x9, 6, 0}, | |
46 | [DVBT_REG_PI] = {0x0, 0xa, 2, 0}, | |
47 | [DVBT_PIP_ON] = {0x0, 0x21, 3, 3}, | |
48 | [DVBT_SCALE1_B92] = {0x2, 0x92, 7, 0}, | |
49 | [DVBT_SCALE1_B93] = {0x2, 0x93, 7, 0}, | |
50 | [DVBT_SCALE1_BA7] = {0x2, 0xa7, 7, 0}, | |
51 | [DVBT_SCALE1_BA9] = {0x2, 0xa9, 7, 0}, | |
52 | [DVBT_SCALE1_BAA] = {0x2, 0xaa, 7, 0}, | |
53 | [DVBT_SCALE1_BAB] = {0x2, 0xab, 7, 0}, | |
54 | [DVBT_SCALE1_BAC] = {0x2, 0xac, 7, 0}, | |
55 | [DVBT_SCALE1_BB0] = {0x2, 0xb0, 7, 0}, | |
56 | [DVBT_SCALE1_BB1] = {0x2, 0xb1, 7, 0}, | |
57 | [DVBT_KB_P1] = {0x1, 0x64, 3, 1}, | |
58 | [DVBT_KB_P2] = {0x1, 0x64, 6, 4}, | |
59 | [DVBT_KB_P3] = {0x1, 0x65, 2, 0}, | |
60 | [DVBT_OPT_ADC_IQ] = {0x0, 0x6, 5, 4}, | |
61 | [DVBT_AD_AVI] = {0x0, 0x9, 1, 0}, | |
62 | [DVBT_AD_AVQ] = {0x0, 0x9, 3, 2}, | |
63 | [DVBT_K1_CR_STEP12] = {0x2, 0xad, 9, 4}, | |
64 | [DVBT_TRK_KS_P2] = {0x1, 0x6f, 2, 0}, | |
65 | [DVBT_TRK_KS_I2] = {0x1, 0x70, 5, 3}, | |
66 | [DVBT_TR_THD_SET2] = {0x1, 0x72, 3, 0}, | |
67 | [DVBT_TRK_KC_P2] = {0x1, 0x73, 5, 3}, | |
68 | [DVBT_TRK_KC_I2] = {0x1, 0x75, 2, 0}, | |
69 | [DVBT_CR_THD_SET2] = {0x1, 0x76, 7, 6}, | |
70 | [DVBT_PSET_IFFREQ] = {0x1, 0x19, 21, 0}, | |
71 | [DVBT_SPEC_INV] = {0x1, 0x15, 0, 0}, | |
72 | [DVBT_RSAMP_RATIO] = {0x1, 0x9f, 27, 2}, | |
73 | [DVBT_CFREQ_OFF_RATIO] = {0x1, 0x9d, 23, 4}, | |
74 | [DVBT_FSM_STAGE] = {0x3, 0x51, 6, 3}, | |
75 | [DVBT_RX_CONSTEL] = {0x3, 0x3c, 3, 2}, | |
76 | [DVBT_RX_HIER] = {0x3, 0x3c, 6, 4}, | |
77 | [DVBT_RX_C_RATE_LP] = {0x3, 0x3d, 2, 0}, | |
78 | [DVBT_RX_C_RATE_HP] = {0x3, 0x3d, 5, 3}, | |
79 | [DVBT_GI_IDX] = {0x3, 0x51, 1, 0}, | |
80 | [DVBT_FFT_MODE_IDX] = {0x3, 0x51, 2, 2}, | |
81 | [DVBT_RSD_BER_EST] = {0x3, 0x4e, 15, 0}, | |
82 | [DVBT_CE_EST_EVM] = {0x4, 0xc, 15, 0}, | |
83 | [DVBT_RF_AGC_VAL] = {0x3, 0x5b, 13, 0}, | |
84 | [DVBT_IF_AGC_VAL] = {0x3, 0x59, 13, 0}, | |
85 | [DVBT_DAGC_VAL] = {0x3, 0x5, 7, 0}, | |
86 | [DVBT_SFREQ_OFF] = {0x3, 0x18, 13, 0}, | |
87 | [DVBT_CFREQ_OFF] = {0x3, 0x5f, 17, 0}, | |
88 | [DVBT_POLAR_RF_AGC] = {0x0, 0xe, 1, 1}, | |
89 | [DVBT_POLAR_IF_AGC] = {0x0, 0xe, 0, 0}, | |
90 | [DVBT_AAGC_HOLD] = {0x1, 0x4, 5, 5}, | |
91 | [DVBT_EN_RF_AGC] = {0x1, 0x4, 6, 6}, | |
92 | [DVBT_EN_IF_AGC] = {0x1, 0x4, 7, 7}, | |
93 | [DVBT_IF_AGC_MIN] = {0x1, 0x8, 7, 0}, | |
94 | [DVBT_IF_AGC_MAX] = {0x1, 0x9, 7, 0}, | |
95 | [DVBT_RF_AGC_MIN] = {0x1, 0xa, 7, 0}, | |
96 | [DVBT_RF_AGC_MAX] = {0x1, 0xb, 7, 0}, | |
97 | [DVBT_IF_AGC_MAN] = {0x1, 0xc, 6, 6}, | |
98 | [DVBT_IF_AGC_MAN_VAL] = {0x1, 0xc, 13, 0}, | |
99 | [DVBT_RF_AGC_MAN] = {0x1, 0xe, 6, 6}, | |
100 | [DVBT_RF_AGC_MAN_VAL] = {0x1, 0xe, 13, 0}, | |
101 | [DVBT_DAGC_TRG_VAL] = {0x1, 0x12, 7, 0}, | |
102 | [DVBT_AGC_TARG_VAL_0] = {0x1, 0x2, 0, 0}, | |
103 | [DVBT_AGC_TARG_VAL_8_1] = {0x1, 0x3, 7, 0}, | |
104 | [DVBT_AAGC_LOOP_GAIN] = {0x1, 0xc7, 5, 1}, | |
105 | [DVBT_LOOP_GAIN2_3_0] = {0x1, 0x4, 4, 1}, | |
106 | [DVBT_LOOP_GAIN2_4] = {0x1, 0x5, 7, 7}, | |
107 | [DVBT_LOOP_GAIN3] = {0x1, 0xc8, 4, 0}, | |
108 | [DVBT_VTOP1] = {0x1, 0x6, 5, 0}, | |
109 | [DVBT_VTOP2] = {0x1, 0xc9, 5, 0}, | |
110 | [DVBT_VTOP3] = {0x1, 0xca, 5, 0}, | |
111 | [DVBT_KRF1] = {0x1, 0xcb, 7, 0}, | |
112 | [DVBT_KRF2] = {0x1, 0x7, 7, 0}, | |
113 | [DVBT_KRF3] = {0x1, 0xcd, 7, 0}, | |
114 | [DVBT_KRF4] = {0x1, 0xce, 7, 0}, | |
115 | [DVBT_EN_GI_PGA] = {0x1, 0xe5, 0, 0}, | |
116 | [DVBT_THD_LOCK_UP] = {0x1, 0xd9, 8, 0}, | |
117 | [DVBT_THD_LOCK_DW] = {0x1, 0xdb, 8, 0}, | |
118 | [DVBT_THD_UP1] = {0x1, 0xdd, 7, 0}, | |
119 | [DVBT_THD_DW1] = {0x1, 0xde, 7, 0}, | |
120 | [DVBT_INTER_CNT_LEN] = {0x1, 0xd8, 3, 0}, | |
121 | [DVBT_GI_PGA_STATE] = {0x1, 0xe6, 3, 3}, | |
122 | [DVBT_EN_AGC_PGA] = {0x1, 0xd7, 0, 0}, | |
123 | [DVBT_CKOUTPAR] = {0x1, 0x7b, 5, 5}, | |
124 | [DVBT_CKOUT_PWR] = {0x1, 0x7b, 6, 6}, | |
125 | [DVBT_SYNC_DUR] = {0x1, 0x7b, 7, 7}, | |
126 | [DVBT_ERR_DUR] = {0x1, 0x7c, 0, 0}, | |
127 | [DVBT_SYNC_LVL] = {0x1, 0x7c, 1, 1}, | |
128 | [DVBT_ERR_LVL] = {0x1, 0x7c, 2, 2}, | |
129 | [DVBT_VAL_LVL] = {0x1, 0x7c, 3, 3}, | |
130 | [DVBT_SERIAL] = {0x1, 0x7c, 4, 4}, | |
131 | [DVBT_SER_LSB] = {0x1, 0x7c, 5, 5}, | |
132 | [DVBT_CDIV_PH0] = {0x1, 0x7d, 3, 0}, | |
133 | [DVBT_CDIV_PH1] = {0x1, 0x7d, 7, 4}, | |
134 | [DVBT_MPEG_IO_OPT_2_2] = {0x0, 0x6, 7, 7}, | |
135 | [DVBT_MPEG_IO_OPT_1_0] = {0x0, 0x7, 7, 6}, | |
136 | [DVBT_CKOUTPAR_PIP] = {0x0, 0xb7, 4, 4}, | |
137 | [DVBT_CKOUT_PWR_PIP] = {0x0, 0xb7, 3, 3}, | |
138 | [DVBT_SYNC_LVL_PIP] = {0x0, 0xb7, 2, 2}, | |
139 | [DVBT_ERR_LVL_PIP] = {0x0, 0xb7, 1, 1}, | |
140 | [DVBT_VAL_LVL_PIP] = {0x0, 0xb7, 0, 0}, | |
141 | [DVBT_CKOUTPAR_PID] = {0x0, 0xb9, 4, 4}, | |
142 | [DVBT_CKOUT_PWR_PID] = {0x0, 0xb9, 3, 3}, | |
143 | [DVBT_SYNC_LVL_PID] = {0x0, 0xb9, 2, 2}, | |
144 | [DVBT_ERR_LVL_PID] = {0x0, 0xb9, 1, 1}, | |
145 | [DVBT_VAL_LVL_PID] = {0x0, 0xb9, 0, 0}, | |
146 | [DVBT_SM_PASS] = {0x1, 0x93, 11, 0}, | |
147 | [DVBT_AD7_SETTING] = {0x0, 0x11, 15, 0}, | |
148 | [DVBT_RSSI_R] = {0x3, 0x1, 6, 0}, | |
149 | [DVBT_ACI_DET_IND] = {0x3, 0x12, 0, 0}, | |
150 | [DVBT_REG_MON] = {0x0, 0xd, 1, 0}, | |
151 | [DVBT_REG_MONSEL] = {0x0, 0xd, 2, 2}, | |
152 | [DVBT_REG_GPE] = {0x0, 0xd, 7, 7}, | |
153 | [DVBT_REG_GPO] = {0x0, 0x10, 0, 0}, | |
154 | [DVBT_REG_4MSEL] = {0x0, 0x13, 0, 0}, | |
155 | }; | |
156 | ||
d1016581 AP |
157 | /* Our regmap is bypassing I2C adapter lock, thus we do it! */ |
158 | int rtl2832_bulk_write(struct i2c_client *client, unsigned int reg, | |
159 | const void *val, size_t val_count) | |
82041c0a | 160 | { |
d1016581 | 161 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
82041c0a | 162 | int ret; |
82041c0a | 163 | |
d1016581 AP |
164 | i2c_lock_adapter(client->adapter); |
165 | ret = regmap_bulk_write(dev->regmap, reg, val, val_count); | |
166 | i2c_unlock_adapter(client->adapter); | |
82041c0a TM |
167 | return ret; |
168 | } | |
169 | ||
d1016581 AP |
170 | int rtl2832_update_bits(struct i2c_client *client, unsigned int reg, |
171 | unsigned int mask, unsigned int val) | |
82041c0a | 172 | { |
d1016581 | 173 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
82041c0a | 174 | int ret; |
82041c0a | 175 | |
d1016581 AP |
176 | i2c_lock_adapter(client->adapter); |
177 | ret = regmap_update_bits(dev->regmap, reg, mask, val); | |
178 | i2c_unlock_adapter(client->adapter); | |
298efdd3 | 179 | return ret; |
82041c0a TM |
180 | } |
181 | ||
d1016581 AP |
182 | int rtl2832_bulk_read(struct i2c_client *client, unsigned int reg, void *val, |
183 | size_t val_count) | |
82041c0a | 184 | { |
d1016581 | 185 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
82041c0a TM |
186 | int ret; |
187 | ||
d1016581 AP |
188 | i2c_lock_adapter(client->adapter); |
189 | ret = regmap_bulk_read(dev->regmap, reg, val, val_count); | |
190 | i2c_unlock_adapter(client->adapter); | |
191 | return ret; | |
192 | } | |
82041c0a | 193 | |
d1016581 AP |
194 | /* write multiple registers */ |
195 | static int rtl2832_wr_regs(struct rtl2832_dev *dev, u8 reg, u8 page, u8 *val, int len) | |
196 | { | |
197 | return rtl2832_bulk_write(dev->client, page << 8 | reg, val, len); | |
82041c0a TM |
198 | } |
199 | ||
200 | /* read multiple registers */ | |
d1016581 | 201 | static int rtl2832_rd_regs(struct rtl2832_dev *dev, u8 reg, u8 page, u8 *val, int len) |
82041c0a | 202 | { |
d1016581 | 203 | return rtl2832_bulk_read(dev->client, page << 8 | reg, val, len); |
82041c0a TM |
204 | } |
205 | ||
82041c0a | 206 | /* write single register */ |
038c6f24 | 207 | static int rtl2832_wr_reg(struct rtl2832_dev *dev, u8 reg, u8 page, u8 val) |
82041c0a | 208 | { |
038c6f24 | 209 | return rtl2832_wr_regs(dev, reg, page, &val, 1); |
82041c0a | 210 | } |
82041c0a TM |
211 | |
212 | /* read single register */ | |
038c6f24 | 213 | static int rtl2832_rd_reg(struct rtl2832_dev *dev, u8 reg, u8 page, u8 *val) |
82041c0a | 214 | { |
038c6f24 | 215 | return rtl2832_rd_regs(dev, reg, page, val, 1); |
82041c0a TM |
216 | } |
217 | ||
038c6f24 | 218 | static int rtl2832_rd_demod_reg(struct rtl2832_dev *dev, int reg, u32 *val) |
82041c0a | 219 | { |
6e6aac65 | 220 | struct i2c_client *client = dev->client; |
82041c0a TM |
221 | int ret; |
222 | ||
223 | u8 reg_start_addr; | |
224 | u8 msb, lsb; | |
225 | u8 page; | |
226 | u8 reading[4]; | |
227 | u32 reading_tmp; | |
228 | int i; | |
229 | ||
230 | u8 len; | |
231 | u32 mask; | |
232 | ||
233 | reg_start_addr = registers[reg].start_address; | |
234 | msb = registers[reg].msb; | |
235 | lsb = registers[reg].lsb; | |
236 | page = registers[reg].page; | |
237 | ||
238 | len = (msb >> 3) + 1; | |
298f18a3 | 239 | mask = REG_MASK(msb - lsb); |
82041c0a | 240 | |
038c6f24 | 241 | ret = rtl2832_rd_regs(dev, reg_start_addr, page, &reading[0], len); |
82041c0a TM |
242 | if (ret) |
243 | goto err; | |
244 | ||
245 | reading_tmp = 0; | |
246 | for (i = 0; i < len; i++) | |
247 | reading_tmp |= reading[i] << ((len - 1 - i) * 8); | |
248 | ||
249 | *val = (reading_tmp >> lsb) & mask; | |
250 | ||
251 | return ret; | |
252 | ||
253 | err: | |
6e6aac65 | 254 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a TM |
255 | return ret; |
256 | ||
257 | } | |
258 | ||
038c6f24 | 259 | static int rtl2832_wr_demod_reg(struct rtl2832_dev *dev, int reg, u32 val) |
82041c0a | 260 | { |
6e6aac65 | 261 | struct i2c_client *client = dev->client; |
82041c0a TM |
262 | int ret, i; |
263 | u8 len; | |
264 | u8 reg_start_addr; | |
265 | u8 msb, lsb; | |
266 | u8 page; | |
267 | u32 mask; | |
268 | ||
269 | ||
270 | u8 reading[4]; | |
271 | u8 writing[4]; | |
272 | u32 reading_tmp; | |
273 | u32 writing_tmp; | |
274 | ||
275 | ||
276 | reg_start_addr = registers[reg].start_address; | |
277 | msb = registers[reg].msb; | |
278 | lsb = registers[reg].lsb; | |
279 | page = registers[reg].page; | |
280 | ||
281 | len = (msb >> 3) + 1; | |
298f18a3 | 282 | mask = REG_MASK(msb - lsb); |
82041c0a TM |
283 | |
284 | ||
038c6f24 | 285 | ret = rtl2832_rd_regs(dev, reg_start_addr, page, &reading[0], len); |
82041c0a TM |
286 | if (ret) |
287 | goto err; | |
288 | ||
289 | reading_tmp = 0; | |
290 | for (i = 0; i < len; i++) | |
291 | reading_tmp |= reading[i] << ((len - 1 - i) * 8); | |
292 | ||
293 | writing_tmp = reading_tmp & ~(mask << lsb); | |
294 | writing_tmp |= ((val & mask) << lsb); | |
295 | ||
296 | ||
297 | for (i = 0; i < len; i++) | |
298 | writing[i] = (writing_tmp >> ((len - 1 - i) * 8)) & 0xff; | |
299 | ||
038c6f24 | 300 | ret = rtl2832_wr_regs(dev, reg_start_addr, page, &writing[0], len); |
82041c0a TM |
301 | if (ret) |
302 | goto err; | |
303 | ||
304 | return ret; | |
305 | ||
306 | err: | |
6e6aac65 | 307 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a TM |
308 | return ret; |
309 | ||
310 | } | |
311 | ||
82041c0a TM |
312 | static int rtl2832_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) |
313 | { | |
038c6f24 | 314 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 AP |
315 | struct i2c_client *client = dev->client; |
316 | int ret; | |
82041c0a | 317 | |
6e6aac65 | 318 | dev_dbg(&client->dev, "enable=%d\n", enable); |
82041c0a TM |
319 | |
320 | /* gate already open or close */ | |
038c6f24 | 321 | if (dev->i2c_gate_state == enable) |
82041c0a TM |
322 | return 0; |
323 | ||
038c6f24 | 324 | ret = rtl2832_wr_demod_reg(dev, DVBT_IIC_REPEAT, (enable ? 0x1 : 0x0)); |
82041c0a TM |
325 | if (ret) |
326 | goto err; | |
327 | ||
038c6f24 | 328 | dev->i2c_gate_state = enable; |
82041c0a TM |
329 | |
330 | return ret; | |
331 | err: | |
6e6aac65 | 332 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a TM |
333 | return ret; |
334 | } | |
335 | ||
884655ad | 336 | static int rtl2832_set_if(struct dvb_frontend *fe, u32 if_freq) |
82041c0a | 337 | { |
038c6f24 | 338 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 339 | struct i2c_client *client = dev->client; |
884655ad | 340 | int ret; |
82041c0a | 341 | u64 pset_iffreq; |
884655ad MCC |
342 | u8 en_bbin = (if_freq == 0 ? 0x1 : 0x0); |
343 | ||
344 | /* | |
345 | * PSET_IFFREQ = - floor((IfFreqHz % CrystalFreqHz) * pow(2, 22) | |
346 | * / CrystalFreqHz) | |
347 | */ | |
348 | ||
e1174d78 | 349 | pset_iffreq = if_freq % dev->pdata->clk; |
884655ad | 350 | pset_iffreq *= 0x400000; |
e1174d78 | 351 | pset_iffreq = div_u64(pset_iffreq, dev->pdata->clk); |
c8832e8f | 352 | pset_iffreq = -pset_iffreq; |
884655ad | 353 | pset_iffreq = pset_iffreq & 0x3fffff; |
6e6aac65 AP |
354 | dev_dbg(&client->dev, "if_frequency=%d pset_iffreq=%08x\n", |
355 | if_freq, (unsigned)pset_iffreq); | |
c8832e8f | 356 | |
038c6f24 | 357 | ret = rtl2832_wr_demod_reg(dev, DVBT_EN_BBIN, en_bbin); |
884655ad MCC |
358 | if (ret) |
359 | return ret; | |
360 | ||
038c6f24 | 361 | ret = rtl2832_wr_demod_reg(dev, DVBT_PSET_IFFREQ, pset_iffreq); |
884655ad | 362 | |
3ca2418d | 363 | return ret; |
884655ad MCC |
364 | } |
365 | ||
366 | static int rtl2832_init(struct dvb_frontend *fe) | |
367 | { | |
038c6f24 | 368 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 369 | struct i2c_client *client = dev->client; |
832cc7cd | 370 | const struct rtl2832_reg_value *init; |
884655ad | 371 | int i, ret, len; |
82041c0a TM |
372 | /* initialization values for the demodulator registers */ |
373 | struct rtl2832_reg_value rtl2832_initial_regs[] = { | |
374 | {DVBT_AD_EN_REG, 0x1}, | |
375 | {DVBT_AD_EN_REG1, 0x1}, | |
376 | {DVBT_RSD_BER_FAIL_VAL, 0x2800}, | |
377 | {DVBT_MGD_THD0, 0x10}, | |
378 | {DVBT_MGD_THD1, 0x20}, | |
379 | {DVBT_MGD_THD2, 0x20}, | |
380 | {DVBT_MGD_THD3, 0x40}, | |
381 | {DVBT_MGD_THD4, 0x22}, | |
382 | {DVBT_MGD_THD5, 0x32}, | |
383 | {DVBT_MGD_THD6, 0x37}, | |
384 | {DVBT_MGD_THD7, 0x39}, | |
385 | {DVBT_EN_BK_TRK, 0x0}, | |
386 | {DVBT_EN_CACQ_NOTCH, 0x0}, | |
387 | {DVBT_AD_AV_REF, 0x2a}, | |
388 | {DVBT_REG_PI, 0x6}, | |
389 | {DVBT_PIP_ON, 0x0}, | |
390 | {DVBT_CDIV_PH0, 0x8}, | |
391 | {DVBT_CDIV_PH1, 0x8}, | |
392 | {DVBT_SCALE1_B92, 0x4}, | |
393 | {DVBT_SCALE1_B93, 0xb0}, | |
394 | {DVBT_SCALE1_BA7, 0x78}, | |
395 | {DVBT_SCALE1_BA9, 0x28}, | |
396 | {DVBT_SCALE1_BAA, 0x59}, | |
397 | {DVBT_SCALE1_BAB, 0x83}, | |
398 | {DVBT_SCALE1_BAC, 0xd4}, | |
399 | {DVBT_SCALE1_BB0, 0x65}, | |
400 | {DVBT_SCALE1_BB1, 0x43}, | |
401 | {DVBT_KB_P1, 0x1}, | |
402 | {DVBT_KB_P2, 0x4}, | |
403 | {DVBT_KB_P3, 0x7}, | |
404 | {DVBT_K1_CR_STEP12, 0xa}, | |
405 | {DVBT_REG_GPE, 0x1}, | |
406 | {DVBT_SERIAL, 0x0}, | |
407 | {DVBT_CDIV_PH0, 0x9}, | |
408 | {DVBT_CDIV_PH1, 0x9}, | |
409 | {DVBT_MPEG_IO_OPT_2_2, 0x0}, | |
410 | {DVBT_MPEG_IO_OPT_1_0, 0x0}, | |
411 | {DVBT_TRK_KS_P2, 0x4}, | |
412 | {DVBT_TRK_KS_I2, 0x7}, | |
413 | {DVBT_TR_THD_SET2, 0x6}, | |
414 | {DVBT_TRK_KC_I2, 0x5}, | |
415 | {DVBT_CR_THD_SET2, 0x1}, | |
82041c0a TM |
416 | }; |
417 | ||
6e6aac65 | 418 | dev_dbg(&client->dev, "\n"); |
82041c0a | 419 | |
82041c0a | 420 | for (i = 0; i < ARRAY_SIZE(rtl2832_initial_regs); i++) { |
038c6f24 | 421 | ret = rtl2832_wr_demod_reg(dev, rtl2832_initial_regs[i].reg, |
82041c0a TM |
422 | rtl2832_initial_regs[i].value); |
423 | if (ret) | |
424 | goto err; | |
425 | } | |
426 | ||
832cc7cd | 427 | /* load tuner specific settings */ |
e1174d78 AP |
428 | dev_dbg(&client->dev, "load settings for tuner=%02x\n", |
429 | dev->pdata->tuner); | |
430 | switch (dev->pdata->tuner) { | |
832cc7cd AP |
431 | case RTL2832_TUNER_FC0012: |
432 | case RTL2832_TUNER_FC0013: | |
433 | len = ARRAY_SIZE(rtl2832_tuner_init_fc0012); | |
434 | init = rtl2832_tuner_init_fc0012; | |
435 | break; | |
5db4187a AP |
436 | case RTL2832_TUNER_TUA9001: |
437 | len = ARRAY_SIZE(rtl2832_tuner_init_tua9001); | |
438 | init = rtl2832_tuner_init_tua9001; | |
439 | break; | |
7e688de0 AP |
440 | case RTL2832_TUNER_E4000: |
441 | len = ARRAY_SIZE(rtl2832_tuner_init_e4000); | |
442 | init = rtl2832_tuner_init_e4000; | |
443 | break; | |
fa4bfd2b | 444 | case RTL2832_TUNER_R820T: |
a26758ed | 445 | case RTL2832_TUNER_R828D: |
fa4bfd2b MCC |
446 | len = ARRAY_SIZE(rtl2832_tuner_init_r820t); |
447 | init = rtl2832_tuner_init_r820t; | |
448 | break; | |
832cc7cd AP |
449 | default: |
450 | ret = -EINVAL; | |
451 | goto err; | |
452 | } | |
453 | ||
454 | for (i = 0; i < len; i++) { | |
038c6f24 | 455 | ret = rtl2832_wr_demod_reg(dev, init[i].reg, init[i].value); |
832cc7cd AP |
456 | if (ret) |
457 | goto err; | |
458 | } | |
459 | ||
fa4bfd2b MCC |
460 | /* |
461 | * r820t NIM code does a software reset here at the demod - | |
3ca2418d AP |
462 | * may not be needed, as there's already a software reset at |
463 | * set_params() | |
fa4bfd2b MCC |
464 | */ |
465 | #if 1 | |
466 | /* soft reset */ | |
038c6f24 | 467 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1); |
fa4bfd2b MCC |
468 | if (ret) |
469 | goto err; | |
470 | ||
038c6f24 | 471 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0); |
fa4bfd2b MCC |
472 | if (ret) |
473 | goto err; | |
474 | #endif | |
82041c0a | 475 | |
038c6f24 | 476 | dev->sleeping = false; |
82041c0a TM |
477 | |
478 | return ret; | |
479 | ||
480 | err: | |
6e6aac65 | 481 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a TM |
482 | return ret; |
483 | } | |
484 | ||
485 | static int rtl2832_sleep(struct dvb_frontend *fe) | |
486 | { | |
038c6f24 | 487 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 488 | struct i2c_client *client = dev->client; |
82041c0a | 489 | |
6e6aac65 | 490 | dev_dbg(&client->dev, "\n"); |
038c6f24 | 491 | dev->sleeping = true; |
82041c0a TM |
492 | return 0; |
493 | } | |
494 | ||
b0944ea2 | 495 | static int rtl2832_get_tune_settings(struct dvb_frontend *fe, |
82041c0a TM |
496 | struct dvb_frontend_tune_settings *s) |
497 | { | |
038c6f24 | 498 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 499 | struct i2c_client *client = dev->client; |
298efdd3 | 500 | |
6e6aac65 | 501 | dev_dbg(&client->dev, "\n"); |
82041c0a TM |
502 | s->min_delay_ms = 1000; |
503 | s->step_size = fe->ops.info.frequency_stepsize * 2; | |
504 | s->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; | |
505 | return 0; | |
506 | } | |
507 | ||
508 | static int rtl2832_set_frontend(struct dvb_frontend *fe) | |
509 | { | |
038c6f24 | 510 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 511 | struct i2c_client *client = dev->client; |
82041c0a TM |
512 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
513 | int ret, i, j; | |
514 | u64 bw_mode, num, num2; | |
515 | u32 resamp_ratio, cfreq_off_ratio; | |
82041c0a TM |
516 | static u8 bw_params[3][32] = { |
517 | /* 6 MHz bandwidth */ | |
518 | { | |
519 | 0xf5, 0xff, 0x15, 0x38, 0x5d, 0x6d, 0x52, 0x07, 0xfa, 0x2f, | |
520 | 0x53, 0xf5, 0x3f, 0xca, 0x0b, 0x91, 0xea, 0x30, 0x63, 0xb2, | |
521 | 0x13, 0xda, 0x0b, 0xc4, 0x18, 0x7e, 0x16, 0x66, 0x08, 0x67, | |
522 | 0x19, 0xe0, | |
523 | }, | |
524 | ||
525 | /* 7 MHz bandwidth */ | |
526 | { | |
527 | 0xe7, 0xcc, 0xb5, 0xba, 0xe8, 0x2f, 0x67, 0x61, 0x00, 0xaf, | |
528 | 0x86, 0xf2, 0xbf, 0x59, 0x04, 0x11, 0xb6, 0x33, 0xa4, 0x30, | |
529 | 0x15, 0x10, 0x0a, 0x42, 0x18, 0xf8, 0x17, 0xd9, 0x07, 0x22, | |
530 | 0x19, 0x10, | |
531 | }, | |
532 | ||
533 | /* 8 MHz bandwidth */ | |
534 | { | |
535 | 0x09, 0xf6, 0xd2, 0xa7, 0x9a, 0xc9, 0x27, 0x77, 0x06, 0xbf, | |
536 | 0xec, 0xf4, 0x4f, 0x0b, 0xfc, 0x01, 0x63, 0x35, 0x54, 0xa7, | |
537 | 0x16, 0x66, 0x08, 0xb4, 0x19, 0x6e, 0x19, 0x65, 0x05, 0xc8, | |
538 | 0x19, 0xe0, | |
539 | }, | |
540 | }; | |
541 | ||
542 | ||
6e6aac65 AP |
543 | dev_dbg(&client->dev, "frequency=%u bandwidth_hz=%u inversion=%u\n", |
544 | c->frequency, c->bandwidth_hz, c->inversion); | |
82041c0a TM |
545 | |
546 | /* program tuner */ | |
547 | if (fe->ops.tuner_ops.set_params) | |
548 | fe->ops.tuner_ops.set_params(fe); | |
549 | ||
fe37b38b | 550 | /* PIP mode related */ |
038c6f24 | 551 | ret = rtl2832_wr_regs(dev, 0x92, 1, "\x00\x0f\xff", 3); |
fe37b38b AP |
552 | if (ret) |
553 | goto err; | |
554 | ||
fa4bfd2b MCC |
555 | /* If the frontend has get_if_frequency(), use it */ |
556 | if (fe->ops.tuner_ops.get_if_frequency) { | |
557 | u32 if_freq; | |
fa4bfd2b MCC |
558 | |
559 | ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_freq); | |
560 | if (ret) | |
561 | goto err; | |
562 | ||
884655ad | 563 | ret = rtl2832_set_if(fe, if_freq); |
fa4bfd2b MCC |
564 | if (ret) |
565 | goto err; | |
566 | } | |
567 | ||
82041c0a TM |
568 | switch (c->bandwidth_hz) { |
569 | case 6000000: | |
570 | i = 0; | |
571 | bw_mode = 48000000; | |
572 | break; | |
573 | case 7000000: | |
574 | i = 1; | |
575 | bw_mode = 56000000; | |
576 | break; | |
577 | case 8000000: | |
578 | i = 2; | |
579 | bw_mode = 64000000; | |
580 | break; | |
581 | default: | |
6e6aac65 AP |
582 | dev_err(&client->dev, "invalid bandwidth_hz %u\n", |
583 | c->bandwidth_hz); | |
584 | ret = -EINVAL; | |
585 | goto err; | |
82041c0a TM |
586 | } |
587 | ||
fc4b3fa7 | 588 | for (j = 0; j < sizeof(bw_params[0]); j++) { |
038c6f24 | 589 | ret = rtl2832_wr_regs(dev, 0x1c+j, 1, &bw_params[i][j], 1); |
82041c0a TM |
590 | if (ret) |
591 | goto err; | |
592 | } | |
593 | ||
594 | /* calculate and set resample ratio | |
595 | * RSAMP_RATIO = floor(CrystalFreqHz * 7 * pow(2, 22) | |
596 | * / ConstWithBandwidthMode) | |
597 | */ | |
e1174d78 | 598 | num = dev->pdata->clk * 7; |
82041c0a TM |
599 | num *= 0x400000; |
600 | num = div_u64(num, bw_mode); | |
601 | resamp_ratio = num & 0x3ffffff; | |
038c6f24 | 602 | ret = rtl2832_wr_demod_reg(dev, DVBT_RSAMP_RATIO, resamp_ratio); |
82041c0a TM |
603 | if (ret) |
604 | goto err; | |
605 | ||
606 | /* calculate and set cfreq off ratio | |
607 | * CFREQ_OFF_RATIO = - floor(ConstWithBandwidthMode * pow(2, 20) | |
608 | * / (CrystalFreqHz * 7)) | |
609 | */ | |
610 | num = bw_mode << 20; | |
e1174d78 | 611 | num2 = dev->pdata->clk * 7; |
82041c0a TM |
612 | num = div_u64(num, num2); |
613 | num = -num; | |
614 | cfreq_off_ratio = num & 0xfffff; | |
038c6f24 | 615 | ret = rtl2832_wr_demod_reg(dev, DVBT_CFREQ_OFF_RATIO, cfreq_off_ratio); |
82041c0a TM |
616 | if (ret) |
617 | goto err; | |
618 | ||
82041c0a | 619 | /* soft reset */ |
038c6f24 | 620 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1); |
82041c0a TM |
621 | if (ret) |
622 | goto err; | |
623 | ||
038c6f24 | 624 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0); |
82041c0a TM |
625 | if (ret) |
626 | goto err; | |
627 | ||
628 | return ret; | |
629 | err: | |
6e6aac65 | 630 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a TM |
631 | return ret; |
632 | } | |
633 | ||
0ce67a2a AP |
634 | static int rtl2832_get_frontend(struct dvb_frontend *fe) |
635 | { | |
038c6f24 | 636 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 637 | struct i2c_client *client = dev->client; |
0ce67a2a AP |
638 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
639 | int ret; | |
640 | u8 buf[3]; | |
641 | ||
038c6f24 | 642 | if (dev->sleeping) |
0ce67a2a AP |
643 | return 0; |
644 | ||
038c6f24 | 645 | ret = rtl2832_rd_regs(dev, 0x3c, 3, buf, 2); |
0ce67a2a AP |
646 | if (ret) |
647 | goto err; | |
648 | ||
038c6f24 | 649 | ret = rtl2832_rd_reg(dev, 0x51, 3, &buf[2]); |
0ce67a2a AP |
650 | if (ret) |
651 | goto err; | |
652 | ||
6e6aac65 | 653 | dev_dbg(&client->dev, "TPS=%*ph\n", 3, buf); |
0ce67a2a AP |
654 | |
655 | switch ((buf[0] >> 2) & 3) { | |
656 | case 0: | |
657 | c->modulation = QPSK; | |
658 | break; | |
659 | case 1: | |
660 | c->modulation = QAM_16; | |
661 | break; | |
662 | case 2: | |
663 | c->modulation = QAM_64; | |
664 | break; | |
665 | } | |
666 | ||
667 | switch ((buf[2] >> 2) & 1) { | |
668 | case 0: | |
669 | c->transmission_mode = TRANSMISSION_MODE_2K; | |
670 | break; | |
671 | case 1: | |
672 | c->transmission_mode = TRANSMISSION_MODE_8K; | |
673 | } | |
674 | ||
675 | switch ((buf[2] >> 0) & 3) { | |
676 | case 0: | |
677 | c->guard_interval = GUARD_INTERVAL_1_32; | |
678 | break; | |
679 | case 1: | |
680 | c->guard_interval = GUARD_INTERVAL_1_16; | |
681 | break; | |
682 | case 2: | |
683 | c->guard_interval = GUARD_INTERVAL_1_8; | |
684 | break; | |
685 | case 3: | |
686 | c->guard_interval = GUARD_INTERVAL_1_4; | |
687 | break; | |
688 | } | |
689 | ||
690 | switch ((buf[0] >> 4) & 7) { | |
691 | case 0: | |
692 | c->hierarchy = HIERARCHY_NONE; | |
693 | break; | |
694 | case 1: | |
695 | c->hierarchy = HIERARCHY_1; | |
696 | break; | |
697 | case 2: | |
698 | c->hierarchy = HIERARCHY_2; | |
699 | break; | |
700 | case 3: | |
701 | c->hierarchy = HIERARCHY_4; | |
702 | break; | |
703 | } | |
704 | ||
705 | switch ((buf[1] >> 3) & 7) { | |
706 | case 0: | |
707 | c->code_rate_HP = FEC_1_2; | |
708 | break; | |
709 | case 1: | |
710 | c->code_rate_HP = FEC_2_3; | |
711 | break; | |
712 | case 2: | |
713 | c->code_rate_HP = FEC_3_4; | |
714 | break; | |
715 | case 3: | |
716 | c->code_rate_HP = FEC_5_6; | |
717 | break; | |
718 | case 4: | |
719 | c->code_rate_HP = FEC_7_8; | |
720 | break; | |
721 | } | |
722 | ||
723 | switch ((buf[1] >> 0) & 7) { | |
724 | case 0: | |
725 | c->code_rate_LP = FEC_1_2; | |
726 | break; | |
727 | case 1: | |
728 | c->code_rate_LP = FEC_2_3; | |
729 | break; | |
730 | case 2: | |
731 | c->code_rate_LP = FEC_3_4; | |
732 | break; | |
733 | case 3: | |
734 | c->code_rate_LP = FEC_5_6; | |
735 | break; | |
736 | case 4: | |
737 | c->code_rate_LP = FEC_7_8; | |
738 | break; | |
739 | } | |
740 | ||
741 | return 0; | |
742 | err: | |
6e6aac65 | 743 | dev_dbg(&client->dev, "failed=%d\n", ret); |
0ce67a2a AP |
744 | return ret; |
745 | } | |
746 | ||
82041c0a TM |
747 | static int rtl2832_read_status(struct dvb_frontend *fe, fe_status_t *status) |
748 | { | |
038c6f24 | 749 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 750 | struct i2c_client *client = dev->client; |
82041c0a TM |
751 | int ret; |
752 | u32 tmp; | |
82041c0a | 753 | |
6e6aac65 AP |
754 | dev_dbg(&client->dev, "\n"); |
755 | ||
756 | *status = 0; | |
038c6f24 | 757 | if (dev->sleeping) |
82041c0a TM |
758 | return 0; |
759 | ||
038c6f24 | 760 | ret = rtl2832_rd_demod_reg(dev, DVBT_FSM_STAGE, &tmp); |
82041c0a TM |
761 | if (ret) |
762 | goto err; | |
763 | ||
764 | if (tmp == 11) { | |
765 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | | |
766 | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; | |
767 | } | |
768 | /* TODO find out if this is also true for rtl2832? */ | |
769 | /*else if (tmp == 10) { | |
770 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | | |
771 | FE_HAS_VITERBI; | |
772 | }*/ | |
773 | ||
774 | return ret; | |
775 | err: | |
6e6aac65 | 776 | dev_dbg(&client->dev, "failed=%d\n", ret); |
82041c0a TM |
777 | return ret; |
778 | } | |
779 | ||
73983497 AP |
780 | static int rtl2832_read_snr(struct dvb_frontend *fe, u16 *snr) |
781 | { | |
038c6f24 | 782 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 783 | struct i2c_client *client = dev->client; |
73983497 AP |
784 | int ret, hierarchy, constellation; |
785 | u8 buf[2], tmp; | |
786 | u16 tmp16; | |
787 | #define CONSTELLATION_NUM 3 | |
788 | #define HIERARCHY_NUM 4 | |
789 | static const u32 snr_constant[CONSTELLATION_NUM][HIERARCHY_NUM] = { | |
790 | { 85387325, 85387325, 85387325, 85387325 }, | |
791 | { 86676178, 86676178, 87167949, 87795660 }, | |
792 | { 87659938, 87659938, 87885178, 88241743 }, | |
793 | }; | |
794 | ||
795 | /* reports SNR in resolution of 0.1 dB */ | |
796 | ||
038c6f24 | 797 | ret = rtl2832_rd_reg(dev, 0x3c, 3, &tmp); |
73983497 AP |
798 | if (ret) |
799 | goto err; | |
800 | ||
801 | constellation = (tmp >> 2) & 0x03; /* [3:2] */ | |
802 | if (constellation > CONSTELLATION_NUM - 1) | |
803 | goto err; | |
804 | ||
805 | hierarchy = (tmp >> 4) & 0x07; /* [6:4] */ | |
806 | if (hierarchy > HIERARCHY_NUM - 1) | |
807 | goto err; | |
808 | ||
038c6f24 | 809 | ret = rtl2832_rd_regs(dev, 0x0c, 4, buf, 2); |
73983497 AP |
810 | if (ret) |
811 | goto err; | |
812 | ||
813 | tmp16 = buf[0] << 8 | buf[1]; | |
814 | ||
815 | if (tmp16) | |
816 | *snr = (snr_constant[constellation][hierarchy] - | |
817 | intlog10(tmp16)) / ((1 << 24) / 100); | |
818 | else | |
819 | *snr = 0; | |
820 | ||
821 | return 0; | |
822 | err: | |
6e6aac65 | 823 | dev_dbg(&client->dev, "failed=%d\n", ret); |
73983497 AP |
824 | return ret; |
825 | } | |
826 | ||
db32d74a AP |
827 | static int rtl2832_read_ber(struct dvb_frontend *fe, u32 *ber) |
828 | { | |
038c6f24 | 829 | struct rtl2832_dev *dev = fe->demodulator_priv; |
6e6aac65 | 830 | struct i2c_client *client = dev->client; |
db32d74a AP |
831 | int ret; |
832 | u8 buf[2]; | |
833 | ||
038c6f24 | 834 | ret = rtl2832_rd_regs(dev, 0x4e, 3, buf, 2); |
db32d74a AP |
835 | if (ret) |
836 | goto err; | |
837 | ||
838 | *ber = buf[0] << 8 | buf[1]; | |
839 | ||
840 | return 0; | |
841 | err: | |
6e6aac65 | 842 | dev_dbg(&client->dev, "failed=%d\n", ret); |
db32d74a AP |
843 | return ret; |
844 | } | |
845 | ||
92d20d9f | 846 | /* |
d1016581 AP |
847 | * I2C gate/mux/repeater logic |
848 | * We must use unlocked __i2c_transfer() here (through regmap) because of I2C | |
849 | * adapter lock is already taken by tuner driver. | |
850 | * There is delay mechanism to avoid unneeded I2C gate open / close. Gate close | |
851 | * is delayed here a little bit in order to see if there is sequence of I2C | |
92d20d9f | 852 | * messages sent to same I2C bus. |
92d20d9f AP |
853 | */ |
854 | static void rtl2832_i2c_gate_work(struct work_struct *work) | |
855 | { | |
d1016581 | 856 | struct rtl2832_dev *dev = container_of(work, struct rtl2832_dev, i2c_gate_work.work); |
6e6aac65 | 857 | struct i2c_client *client = dev->client; |
92d20d9f | 858 | int ret; |
6e6aac65 | 859 | |
d1016581 AP |
860 | /* close gate */ |
861 | ret = rtl2832_update_bits(dev->client, 0x101, 0x08, 0x00); | |
862 | if (ret) | |
92d20d9f AP |
863 | goto err; |
864 | ||
038c6f24 | 865 | dev->i2c_gate_state = false; |
92d20d9f AP |
866 | |
867 | return; | |
868 | err: | |
6e6aac65 | 869 | dev_dbg(&client->dev, "failed=%d\n", ret); |
92d20d9f AP |
870 | return; |
871 | } | |
872 | ||
0ea872d4 | 873 | static int rtl2832_select(struct i2c_adapter *adap, void *mux_priv, u32 chan_id) |
8823f028 | 874 | { |
038c6f24 | 875 | struct rtl2832_dev *dev = mux_priv; |
6e6aac65 | 876 | struct i2c_client *client = dev->client; |
0ea872d4 | 877 | int ret; |
92d20d9f AP |
878 | |
879 | /* terminate possible gate closing */ | |
d1016581 | 880 | cancel_delayed_work(&dev->i2c_gate_work); |
8823f028 | 881 | |
038c6f24 | 882 | if (dev->i2c_gate_state == chan_id) |
0ea872d4 AP |
883 | return 0; |
884 | ||
d1016581 AP |
885 | /* |
886 | * chan_id 1 is muxed adapter demod provides and chan_id 0 is demod | |
887 | * itself. We need open gate when request is for chan_id 1. On that case | |
888 | * I2C adapter lock is already taken and due to that we will use | |
889 | * regmap_update_bits() which does not lock again I2C adapter. | |
890 | */ | |
0ea872d4 | 891 | if (chan_id == 1) |
d1016581 | 892 | ret = regmap_update_bits(dev->regmap, 0x101, 0x08, 0x08); |
0ea872d4 | 893 | else |
d1016581 AP |
894 | ret = rtl2832_update_bits(dev->client, 0x101, 0x08, 0x00); |
895 | if (ret) | |
0ea872d4 AP |
896 | goto err; |
897 | ||
038c6f24 | 898 | dev->i2c_gate_state = chan_id; |
0ea872d4 AP |
899 | |
900 | return 0; | |
901 | err: | |
6e6aac65 | 902 | dev_dbg(&client->dev, "failed=%d\n", ret); |
d1016581 | 903 | return ret; |
8823f028 AP |
904 | } |
905 | ||
92d20d9f | 906 | static int rtl2832_deselect(struct i2c_adapter *adap, void *mux_priv, |
d1016581 | 907 | u32 chan_id) |
92d20d9f | 908 | { |
038c6f24 | 909 | struct rtl2832_dev *dev = mux_priv; |
6e6aac65 | 910 | |
038c6f24 | 911 | schedule_delayed_work(&dev->i2c_gate_work, usecs_to_jiffies(100)); |
92d20d9f AP |
912 | return 0; |
913 | } | |
914 | ||
82041c0a TM |
915 | static struct dvb_frontend_ops rtl2832_ops = { |
916 | .delsys = { SYS_DVBT }, | |
917 | .info = { | |
918 | .name = "Realtek RTL2832 (DVB-T)", | |
919 | .frequency_min = 174000000, | |
920 | .frequency_max = 862000000, | |
921 | .frequency_stepsize = 166667, | |
922 | .caps = FE_CAN_FEC_1_2 | | |
923 | FE_CAN_FEC_2_3 | | |
924 | FE_CAN_FEC_3_4 | | |
925 | FE_CAN_FEC_5_6 | | |
926 | FE_CAN_FEC_7_8 | | |
927 | FE_CAN_FEC_AUTO | | |
928 | FE_CAN_QPSK | | |
929 | FE_CAN_QAM_16 | | |
930 | FE_CAN_QAM_64 | | |
931 | FE_CAN_QAM_AUTO | | |
932 | FE_CAN_TRANSMISSION_MODE_AUTO | | |
933 | FE_CAN_GUARD_INTERVAL_AUTO | | |
934 | FE_CAN_HIERARCHY_AUTO | | |
935 | FE_CAN_RECOVER | | |
936 | FE_CAN_MUTE_TS | |
937 | }, | |
938 | ||
82041c0a TM |
939 | .init = rtl2832_init, |
940 | .sleep = rtl2832_sleep, | |
941 | ||
942 | .get_tune_settings = rtl2832_get_tune_settings, | |
943 | ||
944 | .set_frontend = rtl2832_set_frontend, | |
0ce67a2a | 945 | .get_frontend = rtl2832_get_frontend, |
82041c0a TM |
946 | |
947 | .read_status = rtl2832_read_status, | |
73983497 | 948 | .read_snr = rtl2832_read_snr, |
db32d74a | 949 | .read_ber = rtl2832_read_ber, |
73983497 | 950 | |
82041c0a TM |
951 | .i2c_gate_ctrl = rtl2832_i2c_gate_ctrl, |
952 | }; | |
953 | ||
d1016581 AP |
954 | /* |
955 | * We implement own I2C access routines for regmap in order to get manual access | |
956 | * to I2C adapter lock, which is needed for I2C mux adapter. | |
957 | */ | |
958 | static int rtl2832_regmap_read(void *context, const void *reg_buf, | |
959 | size_t reg_size, void *val_buf, size_t val_size) | |
960 | { | |
961 | struct i2c_client *client = context; | |
962 | int ret; | |
963 | struct i2c_msg msg[2] = { | |
964 | { | |
965 | .addr = client->addr, | |
966 | .flags = 0, | |
967 | .len = reg_size, | |
968 | .buf = (u8 *)reg_buf, | |
969 | }, { | |
970 | .addr = client->addr, | |
971 | .flags = I2C_M_RD, | |
972 | .len = val_size, | |
973 | .buf = val_buf, | |
974 | } | |
975 | }; | |
976 | ||
977 | ret = __i2c_transfer(client->adapter, msg, 2); | |
978 | if (ret != 2) { | |
979 | dev_warn(&client->dev, "i2c reg read failed %d\n", ret); | |
980 | if (ret >= 0) | |
981 | ret = -EREMOTEIO; | |
982 | return ret; | |
983 | } | |
984 | return 0; | |
985 | } | |
986 | ||
987 | static int rtl2832_regmap_write(void *context, const void *data, size_t count) | |
988 | { | |
989 | struct i2c_client *client = context; | |
990 | int ret; | |
991 | struct i2c_msg msg[1] = { | |
992 | { | |
993 | .addr = client->addr, | |
994 | .flags = 0, | |
995 | .len = count, | |
996 | .buf = (u8 *)data, | |
997 | } | |
998 | }; | |
999 | ||
1000 | ret = __i2c_transfer(client->adapter, msg, 1); | |
1001 | if (ret != 1) { | |
1002 | dev_warn(&client->dev, "i2c reg write failed %d\n", ret); | |
1003 | if (ret >= 0) | |
1004 | ret = -EREMOTEIO; | |
1005 | return ret; | |
1006 | } | |
1007 | return 0; | |
1008 | } | |
1009 | ||
1010 | static int rtl2832_regmap_gather_write(void *context, const void *reg, | |
1011 | size_t reg_len, const void *val, | |
1012 | size_t val_len) | |
1013 | { | |
1014 | struct i2c_client *client = context; | |
1015 | int ret; | |
1016 | u8 buf[256]; | |
1017 | struct i2c_msg msg[1] = { | |
1018 | { | |
1019 | .addr = client->addr, | |
1020 | .flags = 0, | |
1021 | .len = 1 + val_len, | |
1022 | .buf = buf, | |
1023 | } | |
1024 | }; | |
1025 | ||
1026 | buf[0] = *(u8 const *)reg; | |
1027 | memcpy(&buf[1], val, val_len); | |
1028 | ||
1029 | ret = __i2c_transfer(client->adapter, msg, 1); | |
1030 | if (ret != 1) { | |
1031 | dev_warn(&client->dev, "i2c reg write failed %d\n", ret); | |
1032 | if (ret >= 0) | |
1033 | ret = -EREMOTEIO; | |
1034 | return ret; | |
1035 | } | |
1036 | return 0; | |
1037 | } | |
1038 | ||
6f5f6ee2 AP |
1039 | static struct dvb_frontend *rtl2832_get_dvb_frontend(struct i2c_client *client) |
1040 | { | |
038c6f24 | 1041 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
6f5f6ee2 AP |
1042 | |
1043 | dev_dbg(&client->dev, "\n"); | |
1044 | return &dev->fe; | |
1045 | } | |
1046 | ||
1047 | static struct i2c_adapter *rtl2832_get_i2c_adapter_(struct i2c_client *client) | |
1048 | { | |
038c6f24 | 1049 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
6f5f6ee2 AP |
1050 | |
1051 | dev_dbg(&client->dev, "\n"); | |
1052 | return dev->i2c_adapter_tuner; | |
1053 | } | |
1054 | ||
1055 | static struct i2c_adapter *rtl2832_get_private_i2c_adapter_(struct i2c_client *client) | |
1056 | { | |
038c6f24 | 1057 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
6f5f6ee2 AP |
1058 | |
1059 | dev_dbg(&client->dev, "\n"); | |
1060 | return dev->i2c_adapter; | |
1061 | } | |
1062 | ||
1063 | static int rtl2832_enable_slave_ts(struct i2c_client *client) | |
1064 | { | |
038c6f24 | 1065 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
6f5f6ee2 AP |
1066 | int ret; |
1067 | ||
6e6aac65 | 1068 | dev_dbg(&client->dev, "\n"); |
6f5f6ee2 AP |
1069 | |
1070 | ret = rtl2832_wr_regs(dev, 0x0c, 1, "\x5f\xff", 2); | |
1071 | if (ret) | |
1072 | goto err; | |
1073 | ||
1074 | ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x1); | |
1075 | if (ret) | |
1076 | goto err; | |
1077 | ||
1078 | ret = rtl2832_wr_reg(dev, 0xbc, 0, 0x18); | |
1079 | if (ret) | |
1080 | goto err; | |
1081 | ||
1082 | ret = rtl2832_wr_reg(dev, 0x22, 0, 0x01); | |
1083 | if (ret) | |
1084 | goto err; | |
1085 | ||
1086 | ret = rtl2832_wr_reg(dev, 0x26, 0, 0x1f); | |
1087 | if (ret) | |
1088 | goto err; | |
1089 | ||
1090 | ret = rtl2832_wr_reg(dev, 0x27, 0, 0xff); | |
1091 | if (ret) | |
1092 | goto err; | |
1093 | ||
1094 | ret = rtl2832_wr_regs(dev, 0x92, 1, "\x7f\xf7\xff", 3); | |
1095 | if (ret) | |
1096 | goto err; | |
1097 | ||
1098 | /* soft reset */ | |
1099 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1); | |
1100 | if (ret) | |
1101 | goto err; | |
1102 | ||
1103 | ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0); | |
1104 | if (ret) | |
1105 | goto err; | |
1106 | ||
1107 | return 0; | |
1108 | err: | |
1109 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
1110 | return ret; | |
1111 | } | |
1112 | ||
c2c8386f AP |
1113 | static int rtl2832_probe(struct i2c_client *client, |
1114 | const struct i2c_device_id *id) | |
1115 | { | |
1116 | struct rtl2832_platform_data *pdata = client->dev.platform_data; | |
c2c8386f | 1117 | struct i2c_adapter *i2c = client->adapter; |
038c6f24 | 1118 | struct rtl2832_dev *dev; |
c2c8386f AP |
1119 | int ret; |
1120 | u8 tmp; | |
d1016581 AP |
1121 | static const struct regmap_bus regmap_bus = { |
1122 | .read = rtl2832_regmap_read, | |
1123 | .write = rtl2832_regmap_write, | |
1124 | .gather_write = rtl2832_regmap_gather_write, | |
1125 | .val_format_endian_default = REGMAP_ENDIAN_NATIVE, | |
1126 | }; | |
1127 | static const struct regmap_range_cfg regmap_range_cfg[] = { | |
1128 | { | |
1129 | .selector_reg = 0x00, | |
1130 | .selector_mask = 0xff, | |
1131 | .selector_shift = 0, | |
1132 | .window_start = 0, | |
1133 | .window_len = 0x100, | |
1134 | .range_min = 0 * 0x100, | |
1135 | .range_max = 5 * 0x100, | |
1136 | }, | |
1137 | }; | |
1138 | static const struct regmap_config regmap_config = { | |
1139 | .reg_bits = 8, | |
1140 | .val_bits = 8, | |
1141 | .max_register = 5 * 0x100, | |
1142 | .ranges = regmap_range_cfg, | |
1143 | .num_ranges = ARRAY_SIZE(regmap_range_cfg), | |
1144 | }; | |
c2c8386f AP |
1145 | |
1146 | dev_dbg(&client->dev, "\n"); | |
1147 | ||
c2c8386f | 1148 | /* allocate memory for the internal state */ |
038c6f24 AP |
1149 | dev = kzalloc(sizeof(struct rtl2832_dev), GFP_KERNEL); |
1150 | if (dev == NULL) { | |
c2c8386f AP |
1151 | ret = -ENOMEM; |
1152 | goto err; | |
1153 | } | |
1154 | ||
038c6f24 | 1155 | /* setup the state */ |
d1016581 | 1156 | i2c_set_clientdata(client, dev); |
038c6f24 | 1157 | dev->client = client; |
e1174d78 AP |
1158 | dev->pdata = client->dev.platform_data; |
1159 | if (pdata->config) { | |
1160 | dev->pdata->clk = pdata->config->xtal; | |
1161 | dev->pdata->tuner = pdata->config->tuner; | |
1162 | } | |
038c6f24 | 1163 | dev->sleeping = true; |
038c6f24 | 1164 | INIT_DELAYED_WORK(&dev->i2c_gate_work, rtl2832_i2c_gate_work); |
d1016581 AP |
1165 | /* create regmap */ |
1166 | dev->regmap = regmap_init(&client->dev, ®map_bus, client, | |
1167 | ®map_config); | |
1168 | if (IS_ERR(dev->regmap)) { | |
1169 | ret = PTR_ERR(dev->regmap); | |
1170 | goto err_kfree; | |
1171 | } | |
c2c8386f | 1172 | /* create muxed i2c adapter for demod itself */ |
038c6f24 | 1173 | dev->i2c_adapter = i2c_add_mux_adapter(i2c, &i2c->dev, dev, 0, 0, 0, |
c2c8386f | 1174 | rtl2832_select, NULL); |
038c6f24 | 1175 | if (dev->i2c_adapter == NULL) { |
c2c8386f | 1176 | ret = -ENODEV; |
d1016581 | 1177 | goto err_regmap_exit; |
c2c8386f AP |
1178 | } |
1179 | ||
1180 | /* check if the demod is there */ | |
038c6f24 | 1181 | ret = rtl2832_rd_reg(dev, 0x00, 0x0, &tmp); |
c2c8386f AP |
1182 | if (ret) |
1183 | goto err_i2c_del_mux_adapter; | |
1184 | ||
1185 | /* create muxed i2c adapter for demod tuner bus */ | |
038c6f24 | 1186 | dev->i2c_adapter_tuner = i2c_add_mux_adapter(i2c, &i2c->dev, dev, |
c2c8386f | 1187 | 0, 1, 0, rtl2832_select, rtl2832_deselect); |
038c6f24 | 1188 | if (dev->i2c_adapter_tuner == NULL) { |
c2c8386f AP |
1189 | ret = -ENODEV; |
1190 | goto err_i2c_del_mux_adapter; | |
1191 | } | |
1192 | ||
1193 | /* create dvb_frontend */ | |
038c6f24 AP |
1194 | memcpy(&dev->fe.ops, &rtl2832_ops, sizeof(struct dvb_frontend_ops)); |
1195 | dev->fe.demodulator_priv = dev; | |
6f5f6ee2 AP |
1196 | |
1197 | /* setup callbacks */ | |
1198 | pdata->get_dvb_frontend = rtl2832_get_dvb_frontend; | |
1199 | pdata->get_i2c_adapter = rtl2832_get_i2c_adapter_; | |
1200 | pdata->get_private_i2c_adapter = rtl2832_get_private_i2c_adapter_; | |
1201 | pdata->enable_slave_ts = rtl2832_enable_slave_ts; | |
c2c8386f AP |
1202 | |
1203 | dev_info(&client->dev, "Realtek RTL2832 successfully attached\n"); | |
1204 | return 0; | |
1205 | err_i2c_del_mux_adapter: | |
038c6f24 | 1206 | i2c_del_mux_adapter(dev->i2c_adapter); |
d1016581 AP |
1207 | err_regmap_exit: |
1208 | regmap_exit(dev->regmap); | |
c2c8386f | 1209 | err_kfree: |
038c6f24 | 1210 | kfree(dev); |
c2c8386f AP |
1211 | err: |
1212 | dev_dbg(&client->dev, "failed=%d\n", ret); | |
1213 | return ret; | |
1214 | } | |
1215 | ||
1216 | static int rtl2832_remove(struct i2c_client *client) | |
1217 | { | |
038c6f24 | 1218 | struct rtl2832_dev *dev = i2c_get_clientdata(client); |
c2c8386f AP |
1219 | |
1220 | dev_dbg(&client->dev, "\n"); | |
1221 | ||
038c6f24 | 1222 | cancel_delayed_work_sync(&dev->i2c_gate_work); |
c2c8386f | 1223 | |
038c6f24 | 1224 | i2c_del_mux_adapter(dev->i2c_adapter_tuner); |
c2c8386f | 1225 | |
038c6f24 | 1226 | i2c_del_mux_adapter(dev->i2c_adapter); |
c2c8386f | 1227 | |
d1016581 AP |
1228 | regmap_exit(dev->regmap); |
1229 | ||
038c6f24 | 1230 | kfree(dev); |
c2c8386f AP |
1231 | |
1232 | return 0; | |
1233 | } | |
1234 | ||
1235 | static const struct i2c_device_id rtl2832_id_table[] = { | |
1236 | {"rtl2832", 0}, | |
1237 | {} | |
1238 | }; | |
1239 | MODULE_DEVICE_TABLE(i2c, rtl2832_id_table); | |
1240 | ||
1241 | static struct i2c_driver rtl2832_driver = { | |
1242 | .driver = { | |
1243 | .owner = THIS_MODULE, | |
1244 | .name = "rtl2832", | |
1245 | }, | |
1246 | .probe = rtl2832_probe, | |
1247 | .remove = rtl2832_remove, | |
1248 | .id_table = rtl2832_id_table, | |
1249 | }; | |
1250 | ||
1251 | module_i2c_driver(rtl2832_driver); | |
1252 | ||
82041c0a TM |
1253 | MODULE_AUTHOR("Thomas Mair <mair.thomas86@gmail.com>"); |
1254 | MODULE_DESCRIPTION("Realtek RTL2832 DVB-T demodulator driver"); | |
1255 | MODULE_LICENSE("GPL"); | |
1256 | MODULE_VERSION("0.5"); |