Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Sony CXD2820R demodulator driver |
| 3 | * |
| 4 | * Copyright (C) 2010 Antti Palosaari <crope@iki.fi> |
| 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 | |
Steve Kerrison | 9ac51c5 | 2011-05-02 18:19:13 -0300 | [diff] [blame] | 22 | #include "cxd2820r_priv.h" |
| 23 | |
Mauro Carvalho Chehab | f311f68 | 2011-12-30 22:22:10 -0300 | [diff] [blame] | 24 | int cxd2820r_set_frontend_t(struct dvb_frontend *fe) |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 25 | { |
| 26 | struct cxd2820r_priv *priv = fe->demodulator_priv; |
| 27 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Antti Palosaari | 13d723b | 2011-11-13 15:21:58 -0300 | [diff] [blame] | 28 | int ret, i, bw_i; |
Antti Palosaari | fcd09f6 | 2016-08-08 15:54:10 -0300 | [diff] [blame] | 29 | unsigned int utmp; |
| 30 | u32 if_frequency; |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 31 | u8 buf[3], bw_param; |
| 32 | u8 bw_params1[][5] = { |
| 33 | { 0x17, 0xea, 0xaa, 0xaa, 0xaa }, /* 6 MHz */ |
| 34 | { 0x14, 0x80, 0x00, 0x00, 0x00 }, /* 7 MHz */ |
| 35 | { 0x11, 0xf0, 0x00, 0x00, 0x00 }, /* 8 MHz */ |
| 36 | }; |
| 37 | u8 bw_params2[][2] = { |
| 38 | { 0x1f, 0xdc }, /* 6 MHz */ |
| 39 | { 0x12, 0xf8 }, /* 7 MHz */ |
| 40 | { 0x01, 0xe0 }, /* 8 MHz */ |
| 41 | }; |
| 42 | struct reg_val_mask tab[] = { |
| 43 | { 0x00080, 0x00, 0xff }, |
| 44 | { 0x00081, 0x03, 0xff }, |
| 45 | { 0x00085, 0x07, 0xff }, |
| 46 | { 0x00088, 0x01, 0xff }, |
| 47 | |
| 48 | { 0x00070, priv->cfg.ts_mode, 0xff }, |
CrazyCat | 4d1ab18 | 2014-06-03 14:19:07 -0300 | [diff] [blame] | 49 | { 0x00071, !priv->cfg.ts_clock_inv << 4, 0x10 }, |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 50 | { 0x000cb, priv->cfg.if_agc_polarity << 6, 0x40 }, |
| 51 | { 0x000a5, 0x00, 0x01 }, |
| 52 | { 0x00082, 0x20, 0x60 }, |
| 53 | { 0x000c2, 0xc3, 0xff }, |
| 54 | { 0x0016a, 0x50, 0xff }, |
| 55 | { 0x00427, 0x41, 0xff }, |
| 56 | }; |
| 57 | |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 58 | dev_dbg(&priv->i2c->dev, "%s: frequency=%d bandwidth_hz=%d\n", __func__, |
| 59 | c->frequency, c->bandwidth_hz); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 60 | |
Antti Palosaari | 13d723b | 2011-11-13 15:21:58 -0300 | [diff] [blame] | 61 | switch (c->bandwidth_hz) { |
| 62 | case 6000000: |
| 63 | bw_i = 0; |
| 64 | bw_param = 2; |
| 65 | break; |
| 66 | case 7000000: |
| 67 | bw_i = 1; |
| 68 | bw_param = 1; |
| 69 | break; |
| 70 | case 8000000: |
| 71 | bw_i = 2; |
| 72 | bw_param = 0; |
| 73 | break; |
| 74 | default: |
| 75 | return -EINVAL; |
| 76 | } |
| 77 | |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 78 | /* program tuner */ |
| 79 | if (fe->ops.tuner_ops.set_params) |
Mauro Carvalho Chehab | 14d24d1 | 2011-12-24 12:24:33 -0300 | [diff] [blame] | 80 | fe->ops.tuner_ops.set_params(fe); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 81 | |
| 82 | if (priv->delivery_system != SYS_DVBT) { |
| 83 | for (i = 0; i < ARRAY_SIZE(tab); i++) { |
| 84 | ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, |
| 85 | tab[i].val, tab[i].mask); |
| 86 | if (ret) |
| 87 | goto error; |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | priv->delivery_system = SYS_DVBT; |
Mauro Carvalho Chehab | 285c0b0 | 2014-09-03 15:22:02 -0300 | [diff] [blame] | 92 | priv->ber_running = false; /* tune stops BER counter */ |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 93 | |
Antti Palosaari | fda23fa | 2011-11-13 14:41:25 -0300 | [diff] [blame] | 94 | /* program IF frequency */ |
| 95 | if (fe->ops.tuner_ops.get_if_frequency) { |
Antti Palosaari | fcd09f6 | 2016-08-08 15:54:10 -0300 | [diff] [blame] | 96 | ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency); |
Antti Palosaari | fda23fa | 2011-11-13 14:41:25 -0300 | [diff] [blame] | 97 | if (ret) |
| 98 | goto error; |
Antti Palosaari | fcd09f6 | 2016-08-08 15:54:10 -0300 | [diff] [blame] | 99 | dev_dbg(&priv->i2c->dev, "%s: if_frequency=%u\n", __func__, |
| 100 | if_frequency); |
| 101 | } else { |
| 102 | ret = -EINVAL; |
| 103 | goto error; |
| 104 | } |
Antti Palosaari | fda23fa | 2011-11-13 14:41:25 -0300 | [diff] [blame] | 105 | |
Antti Palosaari | fcd09f6 | 2016-08-08 15:54:10 -0300 | [diff] [blame] | 106 | utmp = DIV_ROUND_CLOSEST_ULL((u64)if_frequency * 0x1000000, CXD2820R_CLK); |
| 107 | buf[0] = (utmp >> 16) & 0xff; |
| 108 | buf[1] = (utmp >> 8) & 0xff; |
| 109 | buf[2] = (utmp >> 0) & 0xff; |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 110 | ret = cxd2820r_wr_regs(priv, 0x000b6, buf, 3); |
| 111 | if (ret) |
| 112 | goto error; |
| 113 | |
Antti Palosaari | 13d723b | 2011-11-13 15:21:58 -0300 | [diff] [blame] | 114 | ret = cxd2820r_wr_regs(priv, 0x0009f, bw_params1[bw_i], 5); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 115 | if (ret) |
| 116 | goto error; |
| 117 | |
| 118 | ret = cxd2820r_wr_reg_mask(priv, 0x000d7, bw_param << 6, 0xc0); |
| 119 | if (ret) |
| 120 | goto error; |
| 121 | |
Antti Palosaari | 13d723b | 2011-11-13 15:21:58 -0300 | [diff] [blame] | 122 | ret = cxd2820r_wr_regs(priv, 0x000d9, bw_params2[bw_i], 2); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 123 | if (ret) |
| 124 | goto error; |
| 125 | |
| 126 | ret = cxd2820r_wr_reg(priv, 0x000ff, 0x08); |
| 127 | if (ret) |
| 128 | goto error; |
| 129 | |
| 130 | ret = cxd2820r_wr_reg(priv, 0x000fe, 0x01); |
| 131 | if (ret) |
| 132 | goto error; |
| 133 | |
| 134 | return ret; |
| 135 | error: |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 136 | dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 137 | return ret; |
| 138 | } |
| 139 | |
Mauro Carvalho Chehab | 7e3e68b | 2016-02-04 12:58:30 -0200 | [diff] [blame] | 140 | int cxd2820r_get_frontend_t(struct dvb_frontend *fe, |
| 141 | struct dtv_frontend_properties *c) |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 142 | { |
| 143 | struct cxd2820r_priv *priv = fe->demodulator_priv; |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 144 | int ret; |
| 145 | u8 buf[2]; |
| 146 | |
| 147 | ret = cxd2820r_rd_regs(priv, 0x0002f, buf, sizeof(buf)); |
| 148 | if (ret) |
| 149 | goto error; |
| 150 | |
| 151 | switch ((buf[0] >> 6) & 0x03) { |
| 152 | case 0: |
| 153 | c->modulation = QPSK; |
| 154 | break; |
| 155 | case 1: |
| 156 | c->modulation = QAM_16; |
| 157 | break; |
| 158 | case 2: |
| 159 | c->modulation = QAM_64; |
| 160 | break; |
| 161 | } |
| 162 | |
| 163 | switch ((buf[1] >> 1) & 0x03) { |
| 164 | case 0: |
| 165 | c->transmission_mode = TRANSMISSION_MODE_2K; |
| 166 | break; |
| 167 | case 1: |
| 168 | c->transmission_mode = TRANSMISSION_MODE_8K; |
| 169 | break; |
| 170 | } |
| 171 | |
| 172 | switch ((buf[1] >> 3) & 0x03) { |
| 173 | case 0: |
| 174 | c->guard_interval = GUARD_INTERVAL_1_32; |
| 175 | break; |
| 176 | case 1: |
| 177 | c->guard_interval = GUARD_INTERVAL_1_16; |
| 178 | break; |
| 179 | case 2: |
| 180 | c->guard_interval = GUARD_INTERVAL_1_8; |
| 181 | break; |
| 182 | case 3: |
| 183 | c->guard_interval = GUARD_INTERVAL_1_4; |
| 184 | break; |
| 185 | } |
| 186 | |
| 187 | switch ((buf[0] >> 3) & 0x07) { |
| 188 | case 0: |
| 189 | c->hierarchy = HIERARCHY_NONE; |
| 190 | break; |
| 191 | case 1: |
| 192 | c->hierarchy = HIERARCHY_1; |
| 193 | break; |
| 194 | case 2: |
| 195 | c->hierarchy = HIERARCHY_2; |
| 196 | break; |
| 197 | case 3: |
| 198 | c->hierarchy = HIERARCHY_4; |
| 199 | break; |
| 200 | } |
| 201 | |
| 202 | switch ((buf[0] >> 0) & 0x07) { |
| 203 | case 0: |
| 204 | c->code_rate_HP = FEC_1_2; |
| 205 | break; |
| 206 | case 1: |
| 207 | c->code_rate_HP = FEC_2_3; |
| 208 | break; |
| 209 | case 2: |
| 210 | c->code_rate_HP = FEC_3_4; |
| 211 | break; |
| 212 | case 3: |
| 213 | c->code_rate_HP = FEC_5_6; |
| 214 | break; |
| 215 | case 4: |
| 216 | c->code_rate_HP = FEC_7_8; |
| 217 | break; |
| 218 | } |
| 219 | |
| 220 | switch ((buf[1] >> 5) & 0x07) { |
| 221 | case 0: |
| 222 | c->code_rate_LP = FEC_1_2; |
| 223 | break; |
| 224 | case 1: |
| 225 | c->code_rate_LP = FEC_2_3; |
| 226 | break; |
| 227 | case 2: |
| 228 | c->code_rate_LP = FEC_3_4; |
| 229 | break; |
| 230 | case 3: |
| 231 | c->code_rate_LP = FEC_5_6; |
| 232 | break; |
| 233 | case 4: |
| 234 | c->code_rate_LP = FEC_7_8; |
| 235 | break; |
| 236 | } |
| 237 | |
| 238 | ret = cxd2820r_rd_reg(priv, 0x007c6, &buf[0]); |
| 239 | if (ret) |
| 240 | goto error; |
| 241 | |
| 242 | switch ((buf[0] >> 0) & 0x01) { |
| 243 | case 0: |
| 244 | c->inversion = INVERSION_OFF; |
| 245 | break; |
| 246 | case 1: |
| 247 | c->inversion = INVERSION_ON; |
| 248 | break; |
| 249 | } |
| 250 | |
| 251 | return ret; |
| 252 | error: |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 253 | dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 254 | return ret; |
| 255 | } |
| 256 | |
Steve Kerrison | 9ac51c5 | 2011-05-02 18:19:13 -0300 | [diff] [blame] | 257 | int cxd2820r_read_ber_t(struct dvb_frontend *fe, u32 *ber) |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 258 | { |
| 259 | struct cxd2820r_priv *priv = fe->demodulator_priv; |
| 260 | int ret; |
| 261 | u8 buf[3], start_ber = 0; |
| 262 | *ber = 0; |
| 263 | |
| 264 | if (priv->ber_running) { |
| 265 | ret = cxd2820r_rd_regs(priv, 0x00076, buf, sizeof(buf)); |
| 266 | if (ret) |
| 267 | goto error; |
| 268 | |
| 269 | if ((buf[2] >> 7) & 0x01 || (buf[2] >> 4) & 0x01) { |
| 270 | *ber = (buf[2] & 0x0f) << 16 | buf[1] << 8 | buf[0]; |
| 271 | start_ber = 1; |
| 272 | } |
| 273 | } else { |
Mauro Carvalho Chehab | 285c0b0 | 2014-09-03 15:22:02 -0300 | [diff] [blame] | 274 | priv->ber_running = true; |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 275 | start_ber = 1; |
| 276 | } |
| 277 | |
| 278 | if (start_ber) { |
| 279 | /* (re)start BER */ |
| 280 | ret = cxd2820r_wr_reg(priv, 0x00079, 0x01); |
| 281 | if (ret) |
| 282 | goto error; |
| 283 | } |
| 284 | |
| 285 | return ret; |
| 286 | error: |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 287 | dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 288 | return ret; |
| 289 | } |
| 290 | |
Steve Kerrison | 9ac51c5 | 2011-05-02 18:19:13 -0300 | [diff] [blame] | 291 | int cxd2820r_read_signal_strength_t(struct dvb_frontend *fe, |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 292 | u16 *strength) |
| 293 | { |
| 294 | struct cxd2820r_priv *priv = fe->demodulator_priv; |
| 295 | int ret; |
| 296 | u8 buf[2]; |
| 297 | u16 tmp; |
| 298 | |
| 299 | ret = cxd2820r_rd_regs(priv, 0x00026, buf, sizeof(buf)); |
| 300 | if (ret) |
| 301 | goto error; |
| 302 | |
| 303 | tmp = (buf[0] & 0x0f) << 8 | buf[1]; |
| 304 | tmp = ~tmp & 0x0fff; |
| 305 | |
| 306 | /* scale value to 0x0000-0xffff from 0x0000-0x0fff */ |
| 307 | *strength = tmp * 0xffff / 0x0fff; |
| 308 | |
| 309 | return ret; |
| 310 | error: |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 311 | dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 312 | return ret; |
| 313 | } |
| 314 | |
Steve Kerrison | 9ac51c5 | 2011-05-02 18:19:13 -0300 | [diff] [blame] | 315 | int cxd2820r_read_snr_t(struct dvb_frontend *fe, u16 *snr) |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 316 | { |
| 317 | struct cxd2820r_priv *priv = fe->demodulator_priv; |
| 318 | int ret; |
| 319 | u8 buf[2]; |
| 320 | u16 tmp; |
| 321 | /* report SNR in dB * 10 */ |
| 322 | |
| 323 | ret = cxd2820r_rd_regs(priv, 0x00028, buf, sizeof(buf)); |
| 324 | if (ret) |
| 325 | goto error; |
| 326 | |
| 327 | tmp = (buf[0] & 0x1f) << 8 | buf[1]; |
| 328 | #define CXD2820R_LOG10_8_24 15151336 /* log10(8) << 24 */ |
| 329 | if (tmp) |
| 330 | *snr = (intlog10(tmp) - CXD2820R_LOG10_8_24) / ((1 << 24) |
| 331 | / 100); |
| 332 | else |
| 333 | *snr = 0; |
| 334 | |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 335 | dev_dbg(&priv->i2c->dev, "%s: dBx10=%d val=%04x\n", __func__, *snr, |
| 336 | tmp); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 337 | |
| 338 | return ret; |
| 339 | error: |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 340 | dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 341 | return ret; |
| 342 | } |
| 343 | |
Steve Kerrison | 9ac51c5 | 2011-05-02 18:19:13 -0300 | [diff] [blame] | 344 | int cxd2820r_read_ucblocks_t(struct dvb_frontend *fe, u32 *ucblocks) |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 345 | { |
| 346 | *ucblocks = 0; |
| 347 | /* no way to read ? */ |
| 348 | return 0; |
| 349 | } |
| 350 | |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 351 | int cxd2820r_read_status_t(struct dvb_frontend *fe, enum fe_status *status) |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 352 | { |
| 353 | struct cxd2820r_priv *priv = fe->demodulator_priv; |
Antti Palosaari | 2832fd3 | 2016-08-08 20:13:45 -0300 | [diff] [blame^] | 354 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 355 | int ret; |
Antti Palosaari | 2832fd3 | 2016-08-08 20:13:45 -0300 | [diff] [blame^] | 356 | unsigned int utmp; |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 357 | u8 buf[4]; |
| 358 | *status = 0; |
| 359 | |
| 360 | ret = cxd2820r_rd_reg(priv, 0x00010, &buf[0]); |
| 361 | if (ret) |
| 362 | goto error; |
| 363 | |
| 364 | if ((buf[0] & 0x07) == 6) { |
| 365 | ret = cxd2820r_rd_reg(priv, 0x00073, &buf[1]); |
| 366 | if (ret) |
| 367 | goto error; |
| 368 | |
| 369 | if (((buf[1] >> 3) & 0x01) == 1) { |
| 370 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | |
| 371 | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; |
| 372 | } else { |
| 373 | *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | |
| 374 | FE_HAS_VITERBI | FE_HAS_SYNC; |
| 375 | } |
| 376 | } else { |
| 377 | ret = cxd2820r_rd_reg(priv, 0x00014, &buf[2]); |
| 378 | if (ret) |
| 379 | goto error; |
| 380 | |
| 381 | if ((buf[2] & 0x0f) >= 4) { |
| 382 | ret = cxd2820r_rd_reg(priv, 0x00a14, &buf[3]); |
| 383 | if (ret) |
| 384 | goto error; |
| 385 | |
| 386 | if (((buf[3] >> 4) & 0x01) == 1) |
| 387 | *status |= FE_HAS_SIGNAL; |
| 388 | } |
| 389 | } |
| 390 | |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 391 | dev_dbg(&priv->i2c->dev, "%s: lock=%*ph\n", __func__, 4, buf); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 392 | |
Antti Palosaari | 2832fd3 | 2016-08-08 20:13:45 -0300 | [diff] [blame^] | 393 | /* Signal strength */ |
| 394 | if (*status & FE_HAS_SIGNAL) { |
| 395 | unsigned int strength; |
| 396 | |
| 397 | ret = cxd2820r_rd_regs(priv, 0x00026, buf, 2); |
| 398 | if (ret) |
| 399 | goto error; |
| 400 | |
| 401 | utmp = buf[0] << 8 | buf[1] << 0; |
| 402 | utmp = ~utmp & 0x0fff; |
| 403 | /* Scale value to 0x0000-0xffff */ |
| 404 | strength = utmp << 4 | utmp >> 8; |
| 405 | |
| 406 | c->strength.len = 1; |
| 407 | c->strength.stat[0].scale = FE_SCALE_RELATIVE; |
| 408 | c->strength.stat[0].uvalue = strength; |
| 409 | } else { |
| 410 | c->strength.len = 1; |
| 411 | c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
| 412 | } |
| 413 | |
| 414 | /* CNR */ |
| 415 | if (*status & FE_HAS_VITERBI) { |
| 416 | unsigned int cnr; |
| 417 | |
| 418 | ret = cxd2820r_rd_regs(priv, 0x0002c, buf, 2); |
| 419 | if (ret) |
| 420 | goto error; |
| 421 | |
| 422 | utmp = buf[0] << 8 | buf[1] << 0; |
| 423 | if (utmp) |
| 424 | cnr = div_u64((u64)(intlog10(utmp) |
| 425 | - intlog10(32000 - utmp) + 55532585) |
| 426 | * 10000, (1 << 24)); |
| 427 | else |
| 428 | cnr = 0; |
| 429 | |
| 430 | c->cnr.len = 1; |
| 431 | c->cnr.stat[0].scale = FE_SCALE_DECIBEL; |
| 432 | c->cnr.stat[0].svalue = cnr; |
| 433 | } else { |
| 434 | c->cnr.len = 1; |
| 435 | c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
| 436 | } |
| 437 | |
| 438 | /* BER */ |
| 439 | if (*status & FE_HAS_SYNC) { |
| 440 | unsigned int post_bit_error; |
| 441 | bool start_ber; |
| 442 | |
| 443 | if (priv->ber_running) { |
| 444 | ret = cxd2820r_rd_regs(priv, 0x00076, buf, 3); |
| 445 | if (ret) |
| 446 | goto error; |
| 447 | |
| 448 | if ((buf[2] >> 7) & 0x01) { |
| 449 | post_bit_error = buf[2] << 16 | buf[1] << 8 | |
| 450 | buf[0] << 0; |
| 451 | post_bit_error &= 0x0fffff; |
| 452 | start_ber = true; |
| 453 | } else { |
| 454 | post_bit_error = 0; |
| 455 | start_ber = false; |
| 456 | } |
| 457 | } else { |
| 458 | post_bit_error = 0; |
| 459 | start_ber = true; |
| 460 | } |
| 461 | |
| 462 | if (start_ber) { |
| 463 | ret = cxd2820r_wr_reg(priv, 0x00079, 0x01); |
| 464 | if (ret) |
| 465 | goto error; |
| 466 | priv->ber_running = true; |
| 467 | } |
| 468 | |
| 469 | priv->post_bit_error += post_bit_error; |
| 470 | |
| 471 | c->post_bit_error.len = 1; |
| 472 | c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; |
| 473 | c->post_bit_error.stat[0].uvalue = priv->post_bit_error; |
| 474 | } else { |
| 475 | c->post_bit_error.len = 1; |
| 476 | c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; |
| 477 | } |
| 478 | |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 479 | return ret; |
| 480 | error: |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 481 | dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 482 | return ret; |
| 483 | } |
| 484 | |
Steve Kerrison | 9ac51c5 | 2011-05-02 18:19:13 -0300 | [diff] [blame] | 485 | int cxd2820r_init_t(struct dvb_frontend *fe) |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 486 | { |
| 487 | struct cxd2820r_priv *priv = fe->demodulator_priv; |
| 488 | int ret; |
| 489 | |
| 490 | ret = cxd2820r_wr_reg(priv, 0x00085, 0x07); |
| 491 | if (ret) |
| 492 | goto error; |
| 493 | |
| 494 | return ret; |
| 495 | error: |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 496 | dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 497 | return ret; |
| 498 | } |
| 499 | |
Steve Kerrison | 9ac51c5 | 2011-05-02 18:19:13 -0300 | [diff] [blame] | 500 | int cxd2820r_sleep_t(struct dvb_frontend *fe) |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 501 | { |
| 502 | struct cxd2820r_priv *priv = fe->demodulator_priv; |
| 503 | int ret, i; |
| 504 | struct reg_val_mask tab[] = { |
| 505 | { 0x000ff, 0x1f, 0xff }, |
| 506 | { 0x00085, 0x00, 0xff }, |
| 507 | { 0x00088, 0x01, 0xff }, |
| 508 | { 0x00081, 0x00, 0xff }, |
| 509 | { 0x00080, 0x00, 0xff }, |
| 510 | }; |
| 511 | |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 512 | dev_dbg(&priv->i2c->dev, "%s\n", __func__); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 513 | |
| 514 | priv->delivery_system = SYS_UNDEFINED; |
| 515 | |
| 516 | for (i = 0; i < ARRAY_SIZE(tab); i++) { |
| 517 | ret = cxd2820r_wr_reg_mask(priv, tab[i].reg, tab[i].val, |
| 518 | tab[i].mask); |
| 519 | if (ret) |
| 520 | goto error; |
| 521 | } |
| 522 | |
| 523 | return ret; |
| 524 | error: |
Antti Palosaari | 75aeafc | 2012-07-19 13:10:12 -0300 | [diff] [blame] | 525 | dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 526 | return ret; |
| 527 | } |
| 528 | |
Steve Kerrison | 9ac51c5 | 2011-05-02 18:19:13 -0300 | [diff] [blame] | 529 | int cxd2820r_get_tune_settings_t(struct dvb_frontend *fe, |
Antti Palosaari | 27cfc85 | 2011-04-07 16:27:43 -0300 | [diff] [blame] | 530 | struct dvb_frontend_tune_settings *s) |
| 531 | { |
| 532 | s->min_delay_ms = 500; |
| 533 | s->step_size = fe->ops.info.frequency_stepsize * 2; |
| 534 | s->max_drift = (fe->ops.info.frequency_stepsize * 2) + 1; |
| 535 | |
| 536 | return 0; |
| 537 | } |