13e54a169SMatthias Schwarzott /* 218349f40SMatthias Schwarzott * Driver for Silicon Labs Si2161 DVB-T and Si2165 DVB-C/-T Demodulator 318349f40SMatthias Schwarzott * 477f887cdSMatthias Schwarzott * Copyright (C) 2013-2017 Matthias Schwarzott <zzam@gentoo.org> 518349f40SMatthias Schwarzott * 618349f40SMatthias Schwarzott * This program is free software; you can redistribute it and/or modify 718349f40SMatthias Schwarzott * it under the terms of the GNU General Public License as published by 818349f40SMatthias Schwarzott * the Free Software Foundation; either version 2 of the License, or 918349f40SMatthias Schwarzott * (at your option) any later version. 1018349f40SMatthias Schwarzott * 1118349f40SMatthias Schwarzott * This program is distributed in the hope that it will be useful, 1218349f40SMatthias Schwarzott * but WITHOUT ANY WARRANTY; without even the implied warranty of 1318349f40SMatthias Schwarzott * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1418349f40SMatthias Schwarzott * GNU General Public License for more details. 1518349f40SMatthias Schwarzott * 1618349f40SMatthias Schwarzott * References: 1718349f40SMatthias Schwarzott * http://www.silabs.com/Support%20Documents/TechnicalDocs/Si2165-short.pdf 183e54a169SMatthias Schwarzott */ 193e54a169SMatthias Schwarzott 203e54a169SMatthias Schwarzott #include <linux/delay.h> 213e54a169SMatthias Schwarzott #include <linux/errno.h> 223e54a169SMatthias Schwarzott #include <linux/init.h> 233e54a169SMatthias Schwarzott #include <linux/kernel.h> 243e54a169SMatthias Schwarzott #include <linux/module.h> 253e54a169SMatthias Schwarzott #include <linux/string.h> 263e54a169SMatthias Schwarzott #include <linux/slab.h> 273e54a169SMatthias Schwarzott #include <linux/firmware.h> 28e3ea5e94SMatthias Schwarzott #include <linux/regmap.h> 293e54a169SMatthias Schwarzott 303e54a169SMatthias Schwarzott #include "dvb_frontend.h" 313e54a169SMatthias Schwarzott #include "dvb_math.h" 323e54a169SMatthias Schwarzott #include "si2165_priv.h" 333e54a169SMatthias Schwarzott #include "si2165.h" 343e54a169SMatthias Schwarzott 3518349f40SMatthias Schwarzott /* 3618349f40SMatthias Schwarzott * Hauppauge WinTV-HVR-930C-HD B130 / PCTV QuatroStick 521e 1113xx 3718349f40SMatthias Schwarzott * uses 16 MHz xtal 3818349f40SMatthias Schwarzott * 3918349f40SMatthias Schwarzott * Hauppauge WinTV-HVR-930C-HD B131 / PCTV QuatroStick 522e 1114xx 4018349f40SMatthias Schwarzott * uses 24 MHz clock provided by tuner 4118349f40SMatthias Schwarzott */ 423e54a169SMatthias Schwarzott 433e54a169SMatthias Schwarzott struct si2165_state { 447cd785adSMatthias Schwarzott struct i2c_client *client; 457cd785adSMatthias Schwarzott 46e3ea5e94SMatthias Schwarzott struct regmap *regmap; 473e54a169SMatthias Schwarzott 48d9a201dfSMatthias Schwarzott struct dvb_frontend fe; 493e54a169SMatthias Schwarzott 503e54a169SMatthias Schwarzott struct si2165_config config; 513e54a169SMatthias Schwarzott 5255bea400SMatthias Schwarzott u8 chip_revcode; 533e54a169SMatthias Schwarzott u8 chip_type; 543e54a169SMatthias Schwarzott 553e54a169SMatthias Schwarzott /* calculated by xtal and div settings */ 563e54a169SMatthias Schwarzott u32 fvco_hz; 573e54a169SMatthias Schwarzott u32 sys_clk; 583e54a169SMatthias Schwarzott u32 adc_clk; 593e54a169SMatthias Schwarzott 603e54a169SMatthias Schwarzott bool has_dvbc; 613e54a169SMatthias Schwarzott bool has_dvbt; 623e54a169SMatthias Schwarzott bool firmware_loaded; 633e54a169SMatthias Schwarzott }; 643e54a169SMatthias Schwarzott 653e54a169SMatthias Schwarzott static int si2165_write(struct si2165_state *state, const u16 reg, 663e54a169SMatthias Schwarzott const u8 *src, const int count) 673e54a169SMatthias Schwarzott { 683e54a169SMatthias Schwarzott int ret; 693e54a169SMatthias Schwarzott 707dbbb4bfSMatthias Schwarzott dev_dbg(&state->client->dev, "i2c write: reg: 0x%04x, data: %*ph\n", 717dbbb4bfSMatthias Schwarzott reg, count, src); 723e54a169SMatthias Schwarzott 73e3ea5e94SMatthias Schwarzott ret = regmap_bulk_write(state->regmap, reg, src, count); 743e54a169SMatthias Schwarzott 75e3ea5e94SMatthias Schwarzott if (ret) 76aa155449SMatthias Schwarzott dev_err(&state->client->dev, "%s: ret == %d\n", __func__, ret); 773e54a169SMatthias Schwarzott 78e3ea5e94SMatthias Schwarzott return ret; 793e54a169SMatthias Schwarzott } 803e54a169SMatthias Schwarzott 813e54a169SMatthias Schwarzott static int si2165_read(struct si2165_state *state, 823e54a169SMatthias Schwarzott const u16 reg, u8 *val, const int count) 833e54a169SMatthias Schwarzott { 84e3ea5e94SMatthias Schwarzott int ret = regmap_bulk_read(state->regmap, reg, val, count); 853e54a169SMatthias Schwarzott 86e3ea5e94SMatthias Schwarzott if (ret) { 87aa155449SMatthias Schwarzott dev_err(&state->client->dev, "%s: error (addr %02x reg %04x error (ret == %i)\n", 883e54a169SMatthias Schwarzott __func__, state->config.i2c_addr, reg, ret); 893e54a169SMatthias Schwarzott return ret; 903e54a169SMatthias Schwarzott } 913e54a169SMatthias Schwarzott 927dbbb4bfSMatthias Schwarzott dev_dbg(&state->client->dev, "i2c read: reg: 0x%04x, data: %*ph\n", 937dbbb4bfSMatthias Schwarzott reg, count, val); 943e54a169SMatthias Schwarzott 953e54a169SMatthias Schwarzott return 0; 963e54a169SMatthias Schwarzott } 973e54a169SMatthias Schwarzott 983e54a169SMatthias Schwarzott static int si2165_readreg8(struct si2165_state *state, 993e54a169SMatthias Schwarzott const u16 reg, u8 *val) 1003e54a169SMatthias Schwarzott { 101e3ea5e94SMatthias Schwarzott unsigned int val_tmp; 102e3ea5e94SMatthias Schwarzott int ret = regmap_read(state->regmap, reg, &val_tmp); 103e3ea5e94SMatthias Schwarzott *val = (u8)val_tmp; 1041b54da77SMatthias Schwarzott dev_dbg(&state->client->dev, "reg read: R(0x%04x)=0x%02x\n", reg, *val); 1053e54a169SMatthias Schwarzott return ret; 1063e54a169SMatthias Schwarzott } 1073e54a169SMatthias Schwarzott 1083e54a169SMatthias Schwarzott static int si2165_readreg16(struct si2165_state *state, 1093e54a169SMatthias Schwarzott const u16 reg, u16 *val) 1103e54a169SMatthias Schwarzott { 1113e54a169SMatthias Schwarzott u8 buf[2]; 1123e54a169SMatthias Schwarzott 1133e54a169SMatthias Schwarzott int ret = si2165_read(state, reg, buf, 2); 1143e54a169SMatthias Schwarzott *val = buf[0] | buf[1] << 8; 1151b54da77SMatthias Schwarzott dev_dbg(&state->client->dev, "reg read: R(0x%04x)=0x%04x\n", reg, *val); 1163e54a169SMatthias Schwarzott return ret; 1173e54a169SMatthias Schwarzott } 1183e54a169SMatthias Schwarzott 1193e54a169SMatthias Schwarzott static int si2165_writereg8(struct si2165_state *state, const u16 reg, u8 val) 1203e54a169SMatthias Schwarzott { 121e3ea5e94SMatthias Schwarzott return regmap_write(state->regmap, reg, val); 1223e54a169SMatthias Schwarzott } 1233e54a169SMatthias Schwarzott 1243e54a169SMatthias Schwarzott static int si2165_writereg16(struct si2165_state *state, const u16 reg, u16 val) 1253e54a169SMatthias Schwarzott { 1263e54a169SMatthias Schwarzott u8 buf[2] = { val & 0xff, (val >> 8) & 0xff }; 1273e54a169SMatthias Schwarzott 1283e54a169SMatthias Schwarzott return si2165_write(state, reg, buf, 2); 1293e54a169SMatthias Schwarzott } 1303e54a169SMatthias Schwarzott 1313e54a169SMatthias Schwarzott static int si2165_writereg24(struct si2165_state *state, const u16 reg, u32 val) 1323e54a169SMatthias Schwarzott { 1333e54a169SMatthias Schwarzott u8 buf[3] = { val & 0xff, (val >> 8) & 0xff, (val >> 16) & 0xff }; 1343e54a169SMatthias Schwarzott 1353e54a169SMatthias Schwarzott return si2165_write(state, reg, buf, 3); 1363e54a169SMatthias Schwarzott } 1373e54a169SMatthias Schwarzott 1383e54a169SMatthias Schwarzott static int si2165_writereg32(struct si2165_state *state, const u16 reg, u32 val) 1393e54a169SMatthias Schwarzott { 1403e54a169SMatthias Schwarzott u8 buf[4] = { 1413e54a169SMatthias Schwarzott val & 0xff, 1423e54a169SMatthias Schwarzott (val >> 8) & 0xff, 1433e54a169SMatthias Schwarzott (val >> 16) & 0xff, 1443e54a169SMatthias Schwarzott (val >> 24) & 0xff 1453e54a169SMatthias Schwarzott }; 1463e54a169SMatthias Schwarzott return si2165_write(state, reg, buf, 4); 1473e54a169SMatthias Schwarzott } 1483e54a169SMatthias Schwarzott 1493e54a169SMatthias Schwarzott static int si2165_writereg_mask8(struct si2165_state *state, const u16 reg, 1503e54a169SMatthias Schwarzott u8 val, u8 mask) 1513e54a169SMatthias Schwarzott { 1523e54a169SMatthias Schwarzott if (mask != 0xff) { 153c2e5c951SMarkus Elfring u8 tmp; 154c2e5c951SMarkus Elfring int ret = si2165_readreg8(state, reg, &tmp); 155c2e5c951SMarkus Elfring 1563e54a169SMatthias Schwarzott if (ret < 0) 157c2e5c951SMarkus Elfring return ret; 1583e54a169SMatthias Schwarzott 1593e54a169SMatthias Schwarzott val &= mask; 1603e54a169SMatthias Schwarzott tmp &= ~mask; 1613e54a169SMatthias Schwarzott val |= tmp; 1623e54a169SMatthias Schwarzott } 163c2e5c951SMarkus Elfring return si2165_writereg8(state, reg, val); 1643e54a169SMatthias Schwarzott } 1653e54a169SMatthias Schwarzott 1667dbbb4bfSMatthias Schwarzott #define REG16(reg, val) \ 1677dbbb4bfSMatthias Schwarzott { (reg), (val) & 0xff }, \ 1687dbbb4bfSMatthias Schwarzott { (reg) + 1, (val) >> 8 & 0xff } 169a5293dbdSMatthias Schwarzott struct si2165_reg_value_pair { 170a5293dbdSMatthias Schwarzott u16 reg; 171a5293dbdSMatthias Schwarzott u8 val; 172a5293dbdSMatthias Schwarzott }; 173a5293dbdSMatthias Schwarzott 174a5293dbdSMatthias Schwarzott static int si2165_write_reg_list(struct si2165_state *state, 175a5293dbdSMatthias Schwarzott const struct si2165_reg_value_pair *regs, 176a5293dbdSMatthias Schwarzott int count) 177a5293dbdSMatthias Schwarzott { 178a5293dbdSMatthias Schwarzott int i; 179a5293dbdSMatthias Schwarzott int ret; 180a5293dbdSMatthias Schwarzott 181a5293dbdSMatthias Schwarzott for (i = 0; i < count; i++) { 182a5293dbdSMatthias Schwarzott ret = si2165_writereg8(state, regs[i].reg, regs[i].val); 183a5293dbdSMatthias Schwarzott if (ret < 0) 184a5293dbdSMatthias Schwarzott return ret; 185a5293dbdSMatthias Schwarzott } 186a5293dbdSMatthias Schwarzott return 0; 187a5293dbdSMatthias Schwarzott } 188a5293dbdSMatthias Schwarzott 1893e54a169SMatthias Schwarzott static int si2165_get_tune_settings(struct dvb_frontend *fe, 1903e54a169SMatthias Schwarzott struct dvb_frontend_tune_settings *s) 1913e54a169SMatthias Schwarzott { 1923e54a169SMatthias Schwarzott s->min_delay_ms = 1000; 1933e54a169SMatthias Schwarzott return 0; 1943e54a169SMatthias Schwarzott } 1953e54a169SMatthias Schwarzott 1963e54a169SMatthias Schwarzott static int si2165_init_pll(struct si2165_state *state) 1973e54a169SMatthias Schwarzott { 1987dbbb4bfSMatthias Schwarzott u32 ref_freq_hz = state->config.ref_freq_hz; 1993e54a169SMatthias Schwarzott u8 divr = 1; /* 1..7 */ 2003e54a169SMatthias Schwarzott u8 divp = 1; /* only 1 or 4 */ 2013e54a169SMatthias Schwarzott u8 divn = 56; /* 1..63 */ 2023e54a169SMatthias Schwarzott u8 divm = 8; 2033e54a169SMatthias Schwarzott u8 divl = 12; 2043e54a169SMatthias Schwarzott u8 buf[4]; 2053e54a169SMatthias Schwarzott 20618349f40SMatthias Schwarzott /* 20718349f40SMatthias Schwarzott * hardcoded values can be deleted if calculation is verified 20818349f40SMatthias Schwarzott * or it yields the same values as the windows driver 20918349f40SMatthias Schwarzott */ 2107dbbb4bfSMatthias Schwarzott switch (ref_freq_hz) { 2113e54a169SMatthias Schwarzott case 16000000u: 2123e54a169SMatthias Schwarzott divn = 56; 2133e54a169SMatthias Schwarzott break; 2143e54a169SMatthias Schwarzott case 24000000u: 2153e54a169SMatthias Schwarzott divr = 2; 2163e54a169SMatthias Schwarzott divp = 4; 2173e54a169SMatthias Schwarzott divn = 19; 2183e54a169SMatthias Schwarzott break; 2193e54a169SMatthias Schwarzott default: 2203e54a169SMatthias Schwarzott /* ref_freq / divr must be between 4 and 16 MHz */ 2217dbbb4bfSMatthias Schwarzott if (ref_freq_hz > 16000000u) 2223e54a169SMatthias Schwarzott divr = 2; 2233e54a169SMatthias Schwarzott 22418349f40SMatthias Schwarzott /* 22518349f40SMatthias Schwarzott * now select divn and divp such that 22618349f40SMatthias Schwarzott * fvco is in 1624..1824 MHz 22718349f40SMatthias Schwarzott */ 2287dbbb4bfSMatthias Schwarzott if (1624000000u * divr > ref_freq_hz * 2u * 63u) 2293e54a169SMatthias Schwarzott divp = 4; 2303e54a169SMatthias Schwarzott 2313e54a169SMatthias Schwarzott /* is this already correct regarding rounding? */ 2327dbbb4bfSMatthias Schwarzott divn = 1624000000u * divr / (ref_freq_hz * 2u * divp); 2333e54a169SMatthias Schwarzott break; 2343e54a169SMatthias Schwarzott } 2353e54a169SMatthias Schwarzott 2363e54a169SMatthias Schwarzott /* adc_clk and sys_clk depend on xtal and pll settings */ 2377dbbb4bfSMatthias Schwarzott state->fvco_hz = ref_freq_hz / divr 2383e54a169SMatthias Schwarzott * 2u * divn * divp; 2393e54a169SMatthias Schwarzott state->adc_clk = state->fvco_hz / (divm * 4u); 2403e54a169SMatthias Schwarzott state->sys_clk = state->fvco_hz / (divl * 2u); 2413e54a169SMatthias Schwarzott 242814f86c9SMatthias Schwarzott /* write all 4 pll registers 0x00a0..0x00a3 at once */ 2433e54a169SMatthias Schwarzott buf[0] = divl; 2443e54a169SMatthias Schwarzott buf[1] = divm; 2453e54a169SMatthias Schwarzott buf[2] = (divn & 0x3f) | ((divp == 1) ? 0x40 : 0x00) | 0x80; 2463e54a169SMatthias Schwarzott buf[3] = divr; 247814f86c9SMatthias Schwarzott return si2165_write(state, REG_PLL_DIVL, buf, 4); 2483e54a169SMatthias Schwarzott } 2493e54a169SMatthias Schwarzott 2503e54a169SMatthias Schwarzott static int si2165_adjust_pll_divl(struct si2165_state *state, u8 divl) 2513e54a169SMatthias Schwarzott { 2523e54a169SMatthias Schwarzott state->sys_clk = state->fvco_hz / (divl * 2u); 253814f86c9SMatthias Schwarzott return si2165_writereg8(state, REG_PLL_DIVL, divl); 2543e54a169SMatthias Schwarzott } 2553e54a169SMatthias Schwarzott 2563e54a169SMatthias Schwarzott static u32 si2165_get_fe_clk(struct si2165_state *state) 2573e54a169SMatthias Schwarzott { 2583e54a169SMatthias Schwarzott /* assume Oversampling mode Ovr4 is used */ 2593e54a169SMatthias Schwarzott return state->adc_clk; 2603e54a169SMatthias Schwarzott } 2613e54a169SMatthias Schwarzott 262e73c7bfeSHans Verkuil static int si2165_wait_init_done(struct si2165_state *state) 2633e54a169SMatthias Schwarzott { 2643e54a169SMatthias Schwarzott int ret = -EINVAL; 2653e54a169SMatthias Schwarzott u8 val = 0; 2663e54a169SMatthias Schwarzott int i; 2673e54a169SMatthias Schwarzott 2683e54a169SMatthias Schwarzott for (i = 0; i < 3; ++i) { 269814f86c9SMatthias Schwarzott si2165_readreg8(state, REG_INIT_DONE, &val); 2703e54a169SMatthias Schwarzott if (val == 0x01) 2713e54a169SMatthias Schwarzott return 0; 2723e54a169SMatthias Schwarzott usleep_range(1000, 50000); 2733e54a169SMatthias Schwarzott } 27477f887cdSMatthias Schwarzott dev_err(&state->client->dev, "init_done was not set\n"); 2753e54a169SMatthias Schwarzott return ret; 2763e54a169SMatthias Schwarzott } 2773e54a169SMatthias Schwarzott 2783e54a169SMatthias Schwarzott static int si2165_upload_firmware_block(struct si2165_state *state, 2797dbbb4bfSMatthias Schwarzott const u8 *data, u32 len, u32 *poffset, 2807dbbb4bfSMatthias Schwarzott u32 block_count) 2813e54a169SMatthias Schwarzott { 2823e54a169SMatthias Schwarzott int ret; 2833e54a169SMatthias Schwarzott u8 buf_ctrl[4] = { 0x00, 0x00, 0x00, 0xc0 }; 2843e54a169SMatthias Schwarzott u8 wordcount; 2853e54a169SMatthias Schwarzott u32 cur_block = 0; 2863e54a169SMatthias Schwarzott u32 offset = poffset ? *poffset : 0; 2873e54a169SMatthias Schwarzott 2883e54a169SMatthias Schwarzott if (len < 4) 2893e54a169SMatthias Schwarzott return -EINVAL; 2903e54a169SMatthias Schwarzott if (len % 4 != 0) 2913e54a169SMatthias Schwarzott return -EINVAL; 2923e54a169SMatthias Schwarzott 2931b54da77SMatthias Schwarzott dev_dbg(&state->client->dev, 2947dbbb4bfSMatthias Schwarzott "fw load: %s: called with len=0x%x offset=0x%x blockcount=0x%x\n", 2957dbbb4bfSMatthias Schwarzott __func__, len, offset, block_count); 2963e54a169SMatthias Schwarzott while (offset + 12 <= len && cur_block < block_count) { 2971b54da77SMatthias Schwarzott dev_dbg(&state->client->dev, 2987dbbb4bfSMatthias Schwarzott "fw load: %s: in while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n", 2997dbbb4bfSMatthias Schwarzott __func__, len, offset, cur_block, block_count); 3003e54a169SMatthias Schwarzott wordcount = data[offset]; 3013e54a169SMatthias Schwarzott if (wordcount < 1 || data[offset + 1] || 3023e54a169SMatthias Schwarzott data[offset + 2] || data[offset + 3]) { 303aa155449SMatthias Schwarzott dev_warn(&state->client->dev, 30477f887cdSMatthias Schwarzott "bad fw data[0..3] = %*ph\n", 30577f887cdSMatthias Schwarzott 4, data); 3063e54a169SMatthias Schwarzott return -EINVAL; 3073e54a169SMatthias Schwarzott } 3083e54a169SMatthias Schwarzott 3093e54a169SMatthias Schwarzott if (offset + 8 + wordcount * 4 > len) { 310aa155449SMatthias Schwarzott dev_warn(&state->client->dev, 31177f887cdSMatthias Schwarzott "len is too small for block len=%d, wordcount=%d\n", 31277f887cdSMatthias Schwarzott len, wordcount); 3133e54a169SMatthias Schwarzott return -EINVAL; 3143e54a169SMatthias Schwarzott } 3153e54a169SMatthias Schwarzott 3163e54a169SMatthias Schwarzott buf_ctrl[0] = wordcount - 1; 3173e54a169SMatthias Schwarzott 318814f86c9SMatthias Schwarzott ret = si2165_write(state, REG_DCOM_CONTROL_BYTE, buf_ctrl, 4); 3193e54a169SMatthias Schwarzott if (ret < 0) 3203e54a169SMatthias Schwarzott goto error; 321814f86c9SMatthias Schwarzott ret = si2165_write(state, REG_DCOM_ADDR, data + offset + 4, 4); 3223e54a169SMatthias Schwarzott if (ret < 0) 3233e54a169SMatthias Schwarzott goto error; 3243e54a169SMatthias Schwarzott 3253e54a169SMatthias Schwarzott offset += 8; 3263e54a169SMatthias Schwarzott 3273e54a169SMatthias Schwarzott while (wordcount > 0) { 328814f86c9SMatthias Schwarzott ret = si2165_write(state, REG_DCOM_DATA, 329814f86c9SMatthias Schwarzott data + offset, 4); 3303e54a169SMatthias Schwarzott if (ret < 0) 3313e54a169SMatthias Schwarzott goto error; 3323e54a169SMatthias Schwarzott wordcount--; 3333e54a169SMatthias Schwarzott offset += 4; 3343e54a169SMatthias Schwarzott } 3353e54a169SMatthias Schwarzott cur_block++; 3363e54a169SMatthias Schwarzott } 3373e54a169SMatthias Schwarzott 3381b54da77SMatthias Schwarzott dev_dbg(&state->client->dev, 3397dbbb4bfSMatthias Schwarzott "fw load: %s: after while len=0x%x offset=0x%x cur_block=0x%x blockcount=0x%x\n", 3407dbbb4bfSMatthias Schwarzott __func__, len, offset, cur_block, block_count); 3413e54a169SMatthias Schwarzott 3423e54a169SMatthias Schwarzott if (poffset) 3433e54a169SMatthias Schwarzott *poffset = offset; 3443e54a169SMatthias Schwarzott 3451b54da77SMatthias Schwarzott dev_dbg(&state->client->dev, 3467dbbb4bfSMatthias Schwarzott "fw load: %s: returned offset=0x%x\n", 3477dbbb4bfSMatthias Schwarzott __func__, offset); 3483e54a169SMatthias Schwarzott 3493e54a169SMatthias Schwarzott return 0; 3503e54a169SMatthias Schwarzott error: 3513e54a169SMatthias Schwarzott return ret; 3523e54a169SMatthias Schwarzott } 3533e54a169SMatthias Schwarzott 3543e54a169SMatthias Schwarzott static int si2165_upload_firmware(struct si2165_state *state) 3553e54a169SMatthias Schwarzott { 3563e54a169SMatthias Schwarzott /* int ret; */ 3573e54a169SMatthias Schwarzott u8 val[3]; 3583e54a169SMatthias Schwarzott u16 val16; 3593e54a169SMatthias Schwarzott int ret; 3603e54a169SMatthias Schwarzott 3613e54a169SMatthias Schwarzott const struct firmware *fw = NULL; 36255bea400SMatthias Schwarzott u8 *fw_file; 3633e54a169SMatthias Schwarzott const u8 *data; 3643e54a169SMatthias Schwarzott u32 len; 3653e54a169SMatthias Schwarzott u32 offset; 3663e54a169SMatthias Schwarzott u8 patch_version; 3673e54a169SMatthias Schwarzott u8 block_count; 3683e54a169SMatthias Schwarzott u16 crc_expected; 3693e54a169SMatthias Schwarzott 37055bea400SMatthias Schwarzott switch (state->chip_revcode) { 37155bea400SMatthias Schwarzott case 0x03: /* revision D */ 37255bea400SMatthias Schwarzott fw_file = SI2165_FIRMWARE_REV_D; 37355bea400SMatthias Schwarzott break; 37455bea400SMatthias Schwarzott default: 37577f887cdSMatthias Schwarzott dev_info(&state->client->dev, "no firmware file for revision=%d\n", 37677f887cdSMatthias Schwarzott state->chip_revcode); 37755bea400SMatthias Schwarzott return 0; 37855bea400SMatthias Schwarzott } 37955bea400SMatthias Schwarzott 3803e54a169SMatthias Schwarzott /* request the firmware, this will block and timeout */ 381aa155449SMatthias Schwarzott ret = request_firmware(&fw, fw_file, &state->client->dev); 3823e54a169SMatthias Schwarzott if (ret) { 38377f887cdSMatthias Schwarzott dev_warn(&state->client->dev, "firmware file '%s' not found\n", 38477f887cdSMatthias Schwarzott fw_file); 3853e54a169SMatthias Schwarzott goto error; 3863e54a169SMatthias Schwarzott } 3873e54a169SMatthias Schwarzott 3883e54a169SMatthias Schwarzott data = fw->data; 3893e54a169SMatthias Schwarzott len = fw->size; 3903e54a169SMatthias Schwarzott 39177f887cdSMatthias Schwarzott dev_info(&state->client->dev, "downloading firmware from file '%s' size=%d\n", 39277f887cdSMatthias Schwarzott fw_file, len); 3933e54a169SMatthias Schwarzott 3943e54a169SMatthias Schwarzott if (len % 4 != 0) { 39577f887cdSMatthias Schwarzott dev_warn(&state->client->dev, "firmware size is not multiple of 4\n"); 3963e54a169SMatthias Schwarzott ret = -EINVAL; 3973e54a169SMatthias Schwarzott goto error; 3983e54a169SMatthias Schwarzott } 3993e54a169SMatthias Schwarzott 4003e54a169SMatthias Schwarzott /* check header (8 bytes) */ 4013e54a169SMatthias Schwarzott if (len < 8) { 40277f887cdSMatthias Schwarzott dev_warn(&state->client->dev, "firmware header is missing\n"); 4033e54a169SMatthias Schwarzott ret = -EINVAL; 4043e54a169SMatthias Schwarzott goto error; 4053e54a169SMatthias Schwarzott } 4063e54a169SMatthias Schwarzott 4073e54a169SMatthias Schwarzott if (data[0] != 1 || data[1] != 0) { 40877f887cdSMatthias Schwarzott dev_warn(&state->client->dev, "firmware file version is wrong\n"); 4093e54a169SMatthias Schwarzott ret = -EINVAL; 4103e54a169SMatthias Schwarzott goto error; 4113e54a169SMatthias Schwarzott } 4123e54a169SMatthias Schwarzott 4133e54a169SMatthias Schwarzott patch_version = data[2]; 4143e54a169SMatthias Schwarzott block_count = data[4]; 4153e54a169SMatthias Schwarzott crc_expected = data[7] << 8 | data[6]; 4163e54a169SMatthias Schwarzott 4173e54a169SMatthias Schwarzott /* start uploading fw */ 4183e54a169SMatthias Schwarzott /* boot/wdog status */ 419814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_WDOG_AND_BOOT, 0x00); 4203e54a169SMatthias Schwarzott if (ret < 0) 4213e54a169SMatthias Schwarzott goto error; 4223e54a169SMatthias Schwarzott /* reset */ 423814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_RST_ALL, 0x00); 4243e54a169SMatthias Schwarzott if (ret < 0) 4253e54a169SMatthias Schwarzott goto error; 4263e54a169SMatthias Schwarzott /* boot/wdog status */ 427814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_WDOG_AND_BOOT, val); 4283e54a169SMatthias Schwarzott if (ret < 0) 4293e54a169SMatthias Schwarzott goto error; 4303e54a169SMatthias Schwarzott 4313e54a169SMatthias Schwarzott /* enable reset on error */ 432814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_EN_RST_ERROR, val); 4333e54a169SMatthias Schwarzott if (ret < 0) 4343e54a169SMatthias Schwarzott goto error; 435814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_EN_RST_ERROR, val); 4363e54a169SMatthias Schwarzott if (ret < 0) 4373e54a169SMatthias Schwarzott goto error; 438814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_EN_RST_ERROR, 0x02); 4393e54a169SMatthias Schwarzott if (ret < 0) 4403e54a169SMatthias Schwarzott goto error; 4413e54a169SMatthias Schwarzott 4423e54a169SMatthias Schwarzott /* start right after the header */ 4433e54a169SMatthias Schwarzott offset = 8; 4443e54a169SMatthias Schwarzott 4457dbbb4bfSMatthias Schwarzott dev_info(&state->client->dev, "%s: extracted patch_version=0x%02x, block_count=0x%02x, crc_expected=0x%04x\n", 4467dbbb4bfSMatthias Schwarzott __func__, patch_version, block_count, crc_expected); 4473e54a169SMatthias Schwarzott 4483e54a169SMatthias Schwarzott ret = si2165_upload_firmware_block(state, data, len, &offset, 1); 4493e54a169SMatthias Schwarzott if (ret < 0) 4503e54a169SMatthias Schwarzott goto error; 4513e54a169SMatthias Schwarzott 452814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_PATCH_VERSION, patch_version); 4533e54a169SMatthias Schwarzott if (ret < 0) 4543e54a169SMatthias Schwarzott goto error; 4553e54a169SMatthias Schwarzott 4563e54a169SMatthias Schwarzott /* reset crc */ 457814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_RST_CRC, 0x01); 4583e54a169SMatthias Schwarzott if (ret) 459ec73b9fdSChristian Engelmayer goto error; 4603e54a169SMatthias Schwarzott 4613e54a169SMatthias Schwarzott ret = si2165_upload_firmware_block(state, data, len, 4623e54a169SMatthias Schwarzott &offset, block_count); 4633e54a169SMatthias Schwarzott if (ret < 0) { 464aa155449SMatthias Schwarzott dev_err(&state->client->dev, 46577f887cdSMatthias Schwarzott "firmware could not be uploaded\n"); 4663e54a169SMatthias Schwarzott goto error; 4673e54a169SMatthias Schwarzott } 4683e54a169SMatthias Schwarzott 4693e54a169SMatthias Schwarzott /* read crc */ 470814f86c9SMatthias Schwarzott ret = si2165_readreg16(state, REG_CRC, &val16); 4713e54a169SMatthias Schwarzott if (ret) 4723e54a169SMatthias Schwarzott goto error; 4733e54a169SMatthias Schwarzott 4743e54a169SMatthias Schwarzott if (val16 != crc_expected) { 475aa155449SMatthias Schwarzott dev_err(&state->client->dev, 47677f887cdSMatthias Schwarzott "firmware crc mismatch %04x != %04x\n", 47777f887cdSMatthias Schwarzott val16, crc_expected); 4783e54a169SMatthias Schwarzott ret = -EINVAL; 4793e54a169SMatthias Schwarzott goto error; 4803e54a169SMatthias Schwarzott } 4813e54a169SMatthias Schwarzott 4823e54a169SMatthias Schwarzott ret = si2165_upload_firmware_block(state, data, len, &offset, 5); 4833e54a169SMatthias Schwarzott if (ret) 4843e54a169SMatthias Schwarzott goto error; 4853e54a169SMatthias Schwarzott 4863e54a169SMatthias Schwarzott if (len != offset) { 487aa155449SMatthias Schwarzott dev_err(&state->client->dev, 48877f887cdSMatthias Schwarzott "firmware len mismatch %04x != %04x\n", 48977f887cdSMatthias Schwarzott len, offset); 4903e54a169SMatthias Schwarzott ret = -EINVAL; 4913e54a169SMatthias Schwarzott goto error; 4923e54a169SMatthias Schwarzott } 4933e54a169SMatthias Schwarzott 4943e54a169SMatthias Schwarzott /* reset watchdog error register */ 495814f86c9SMatthias Schwarzott ret = si2165_writereg_mask8(state, REG_WDOG_AND_BOOT, 0x02, 0x02); 4963e54a169SMatthias Schwarzott if (ret < 0) 4973e54a169SMatthias Schwarzott goto error; 4983e54a169SMatthias Schwarzott 4993e54a169SMatthias Schwarzott /* enable reset on error */ 500814f86c9SMatthias Schwarzott ret = si2165_writereg_mask8(state, REG_EN_RST_ERROR, 0x01, 0x01); 5013e54a169SMatthias Schwarzott if (ret < 0) 5023e54a169SMatthias Schwarzott goto error; 5033e54a169SMatthias Schwarzott 50477f887cdSMatthias Schwarzott dev_info(&state->client->dev, "fw load finished\n"); 5053e54a169SMatthias Schwarzott 5063e54a169SMatthias Schwarzott ret = 0; 5073e54a169SMatthias Schwarzott state->firmware_loaded = true; 5083e54a169SMatthias Schwarzott error: 5093e54a169SMatthias Schwarzott if (fw) { 5103e54a169SMatthias Schwarzott release_firmware(fw); 5113e54a169SMatthias Schwarzott fw = NULL; 5123e54a169SMatthias Schwarzott } 5133e54a169SMatthias Schwarzott 5143e54a169SMatthias Schwarzott return ret; 5153e54a169SMatthias Schwarzott } 5163e54a169SMatthias Schwarzott 5173e54a169SMatthias Schwarzott static int si2165_init(struct dvb_frontend *fe) 5183e54a169SMatthias Schwarzott { 5193e54a169SMatthias Schwarzott int ret = 0; 5203e54a169SMatthias Schwarzott struct si2165_state *state = fe->demodulator_priv; 5213e54a169SMatthias Schwarzott u8 val; 5223e54a169SMatthias Schwarzott u8 patch_version = 0x00; 5233e54a169SMatthias Schwarzott 5241b54da77SMatthias Schwarzott dev_dbg(&state->client->dev, "%s: called\n", __func__); 5253e54a169SMatthias Schwarzott 5263e54a169SMatthias Schwarzott /* powerup */ 527814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_CHIP_MODE, state->config.chip_mode); 5283e54a169SMatthias Schwarzott if (ret < 0) 5293e54a169SMatthias Schwarzott goto error; 5303e54a169SMatthias Schwarzott /* dsp_clock_enable */ 531814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_DSP_CLOCK, 0x01); 5323e54a169SMatthias Schwarzott if (ret < 0) 5333e54a169SMatthias Schwarzott goto error; 534814f86c9SMatthias Schwarzott /* verify chip_mode */ 535814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_CHIP_MODE, &val); 5363e54a169SMatthias Schwarzott if (ret < 0) 5373e54a169SMatthias Schwarzott goto error; 5383e54a169SMatthias Schwarzott if (val != state->config.chip_mode) { 53977f887cdSMatthias Schwarzott dev_err(&state->client->dev, "could not set chip_mode\n"); 5403e54a169SMatthias Schwarzott return -EINVAL; 5413e54a169SMatthias Schwarzott } 5423e54a169SMatthias Schwarzott 5433e54a169SMatthias Schwarzott /* agc */ 544814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_AGC_IF_TRI, 0x00); 5453e54a169SMatthias Schwarzott if (ret < 0) 5463e54a169SMatthias Schwarzott goto error; 547814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_AGC_IF_SLR, 0x01); 5483e54a169SMatthias Schwarzott if (ret < 0) 5493e54a169SMatthias Schwarzott goto error; 550814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_AGC2_OUTPUT, 0x00); 5513e54a169SMatthias Schwarzott if (ret < 0) 5523e54a169SMatthias Schwarzott goto error; 553814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_AGC2_CLKDIV, 0x07); 5543e54a169SMatthias Schwarzott if (ret < 0) 5553e54a169SMatthias Schwarzott goto error; 5563e54a169SMatthias Schwarzott /* rssi pad */ 557814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_RSSI_PAD_CTRL, 0x00); 5583e54a169SMatthias Schwarzott if (ret < 0) 5593e54a169SMatthias Schwarzott goto error; 560814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_RSSI_ENABLE, 0x00); 5613e54a169SMatthias Schwarzott if (ret < 0) 5623e54a169SMatthias Schwarzott goto error; 5633e54a169SMatthias Schwarzott 5643e54a169SMatthias Schwarzott ret = si2165_init_pll(state); 5653e54a169SMatthias Schwarzott if (ret < 0) 5663e54a169SMatthias Schwarzott goto error; 5673e54a169SMatthias Schwarzott 5683e54a169SMatthias Schwarzott /* enable chip_init */ 569814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_CHIP_INIT, 0x01); 5703e54a169SMatthias Schwarzott if (ret < 0) 5713e54a169SMatthias Schwarzott goto error; 5723e54a169SMatthias Schwarzott /* set start_init */ 573814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_START_INIT, 0x01); 5743e54a169SMatthias Schwarzott if (ret < 0) 5753e54a169SMatthias Schwarzott goto error; 5763e54a169SMatthias Schwarzott ret = si2165_wait_init_done(state); 5773e54a169SMatthias Schwarzott if (ret < 0) 5783e54a169SMatthias Schwarzott goto error; 5793e54a169SMatthias Schwarzott 5803e54a169SMatthias Schwarzott /* disable chip_init */ 581814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_CHIP_INIT, 0x00); 5823e54a169SMatthias Schwarzott if (ret < 0) 5833e54a169SMatthias Schwarzott goto error; 5843e54a169SMatthias Schwarzott 5853e54a169SMatthias Schwarzott /* ber_pkt */ 586814f86c9SMatthias Schwarzott ret = si2165_writereg16(state, REG_BER_PKT, 0x7530); 5873e54a169SMatthias Schwarzott if (ret < 0) 5883e54a169SMatthias Schwarzott goto error; 5893e54a169SMatthias Schwarzott 590814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_PATCH_VERSION, &patch_version); 5913e54a169SMatthias Schwarzott if (ret < 0) 5923e54a169SMatthias Schwarzott goto error; 5933e54a169SMatthias Schwarzott 594814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_AUTO_RESET, 0x00); 5953e54a169SMatthias Schwarzott if (ret < 0) 5963e54a169SMatthias Schwarzott goto error; 5973e54a169SMatthias Schwarzott 5983e54a169SMatthias Schwarzott /* dsp_addr_jump */ 599814f86c9SMatthias Schwarzott ret = si2165_writereg32(state, REG_ADDR_JUMP, 0xf4000000); 6003e54a169SMatthias Schwarzott if (ret < 0) 6013e54a169SMatthias Schwarzott goto error; 6023e54a169SMatthias Schwarzott /* boot/wdog status */ 603814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_WDOG_AND_BOOT, &val); 6043e54a169SMatthias Schwarzott if (ret < 0) 6053e54a169SMatthias Schwarzott goto error; 6063e54a169SMatthias Schwarzott 6073e54a169SMatthias Schwarzott if (patch_version == 0x00) { 6083e54a169SMatthias Schwarzott ret = si2165_upload_firmware(state); 6093e54a169SMatthias Schwarzott if (ret < 0) 6103e54a169SMatthias Schwarzott goto error; 6113e54a169SMatthias Schwarzott } 6123e54a169SMatthias Schwarzott 61375d62fc0SMatthias Schwarzott /* ts output config */ 614814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_TS_DATA_MODE, 0x20); 61575d62fc0SMatthias Schwarzott if (ret < 0) 61675d62fc0SMatthias Schwarzott return ret; 617814f86c9SMatthias Schwarzott ret = si2165_writereg16(state, REG_TS_TRI, 0x00fe); 61875d62fc0SMatthias Schwarzott if (ret < 0) 61975d62fc0SMatthias Schwarzott return ret; 620814f86c9SMatthias Schwarzott ret = si2165_writereg24(state, REG_TS_SLR, 0x555555); 62175d62fc0SMatthias Schwarzott if (ret < 0) 62275d62fc0SMatthias Schwarzott return ret; 623814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_TS_CLK_MODE, 0x01); 62475d62fc0SMatthias Schwarzott if (ret < 0) 62575d62fc0SMatthias Schwarzott return ret; 626ec278f87SMatthias Schwarzott ret = si2165_writereg8(state, REG_TS_PARALLEL_MODE, 0x00); 627ec278f87SMatthias Schwarzott if (ret < 0) 628ec278f87SMatthias Schwarzott return ret; 62975d62fc0SMatthias Schwarzott 6303e54a169SMatthias Schwarzott return 0; 6313e54a169SMatthias Schwarzott error: 6323e54a169SMatthias Schwarzott return ret; 6333e54a169SMatthias Schwarzott } 6343e54a169SMatthias Schwarzott 6353e54a169SMatthias Schwarzott static int si2165_sleep(struct dvb_frontend *fe) 6363e54a169SMatthias Schwarzott { 6373e54a169SMatthias Schwarzott int ret; 6383e54a169SMatthias Schwarzott struct si2165_state *state = fe->demodulator_priv; 6393e54a169SMatthias Schwarzott 6403e54a169SMatthias Schwarzott /* dsp clock disable */ 641814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_DSP_CLOCK, 0x00); 6423e54a169SMatthias Schwarzott if (ret < 0) 6433e54a169SMatthias Schwarzott return ret; 6443e54a169SMatthias Schwarzott /* chip mode */ 645814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_CHIP_MODE, SI2165_MODE_OFF); 6463e54a169SMatthias Schwarzott if (ret < 0) 6473e54a169SMatthias Schwarzott return ret; 6483e54a169SMatthias Schwarzott return 0; 6493e54a169SMatthias Schwarzott } 6503e54a169SMatthias Schwarzott 6510df289a2SMauro Carvalho Chehab static int si2165_read_status(struct dvb_frontend *fe, enum fe_status *status) 6523e54a169SMatthias Schwarzott { 6533e54a169SMatthias Schwarzott int ret; 6543e54a169SMatthias Schwarzott u8 fec_lock = 0; 6553e54a169SMatthias Schwarzott struct si2165_state *state = fe->demodulator_priv; 6563e54a169SMatthias Schwarzott 6573e54a169SMatthias Schwarzott if (!state->has_dvbt) 6583e54a169SMatthias Schwarzott return -EINVAL; 6593e54a169SMatthias Schwarzott 6603e54a169SMatthias Schwarzott /* check fec_lock */ 661814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_FEC_LOCK, &fec_lock); 6623e54a169SMatthias Schwarzott if (ret < 0) 6633e54a169SMatthias Schwarzott return ret; 6643e54a169SMatthias Schwarzott *status = 0; 6653e54a169SMatthias Schwarzott if (fec_lock & 0x01) { 6663e54a169SMatthias Schwarzott *status |= FE_HAS_SIGNAL; 6673e54a169SMatthias Schwarzott *status |= FE_HAS_CARRIER; 6683e54a169SMatthias Schwarzott *status |= FE_HAS_VITERBI; 6693e54a169SMatthias Schwarzott *status |= FE_HAS_SYNC; 6703e54a169SMatthias Schwarzott *status |= FE_HAS_LOCK; 6713e54a169SMatthias Schwarzott } 6723e54a169SMatthias Schwarzott 6733e54a169SMatthias Schwarzott return 0; 6743e54a169SMatthias Schwarzott } 6753e54a169SMatthias Schwarzott 6763e54a169SMatthias Schwarzott static int si2165_set_oversamp(struct si2165_state *state, u32 dvb_rate) 6773e54a169SMatthias Schwarzott { 6783e54a169SMatthias Schwarzott u64 oversamp; 6793e54a169SMatthias Schwarzott u32 reg_value; 6803e54a169SMatthias Schwarzott 6812df9dda0SMatthias Schwarzott if (!dvb_rate) 6822df9dda0SMatthias Schwarzott return -EINVAL; 6832df9dda0SMatthias Schwarzott 6843e54a169SMatthias Schwarzott oversamp = si2165_get_fe_clk(state); 6853e54a169SMatthias Schwarzott oversamp <<= 23; 6863e54a169SMatthias Schwarzott do_div(oversamp, dvb_rate); 6873e54a169SMatthias Schwarzott reg_value = oversamp & 0x3fffffff; 6883e54a169SMatthias Schwarzott 6891b54da77SMatthias Schwarzott dev_dbg(&state->client->dev, "Write oversamp=%#x\n", reg_value); 690814f86c9SMatthias Schwarzott return si2165_writereg32(state, REG_OVERSAMP, reg_value); 6913e54a169SMatthias Schwarzott } 6923e54a169SMatthias Schwarzott 693542fb3c5SMatthias Schwarzott static int si2165_set_if_freq_shift(struct si2165_state *state) 6943e54a169SMatthias Schwarzott { 695542fb3c5SMatthias Schwarzott struct dvb_frontend *fe = &state->fe; 6963e54a169SMatthias Schwarzott u64 if_freq_shift; 6973e54a169SMatthias Schwarzott s32 reg_value = 0; 6983e54a169SMatthias Schwarzott u32 fe_clk = si2165_get_fe_clk(state); 699542fb3c5SMatthias Schwarzott u32 IF = 0; 7003e54a169SMatthias Schwarzott 701542fb3c5SMatthias Schwarzott if (!fe->ops.tuner_ops.get_if_frequency) { 702aa155449SMatthias Schwarzott dev_err(&state->client->dev, 70377f887cdSMatthias Schwarzott "Error: get_if_frequency() not defined at tuner. Can't work without it!\n"); 704542fb3c5SMatthias Schwarzott return -EINVAL; 705542fb3c5SMatthias Schwarzott } 706542fb3c5SMatthias Schwarzott 7072df9dda0SMatthias Schwarzott if (!fe_clk) 7082df9dda0SMatthias Schwarzott return -EINVAL; 7092df9dda0SMatthias Schwarzott 710542fb3c5SMatthias Schwarzott fe->ops.tuner_ops.get_if_frequency(fe, &IF); 7113e54a169SMatthias Schwarzott if_freq_shift = IF; 7123e54a169SMatthias Schwarzott if_freq_shift <<= 29; 7133e54a169SMatthias Schwarzott 7143e54a169SMatthias Schwarzott do_div(if_freq_shift, fe_clk); 7153e54a169SMatthias Schwarzott reg_value = (s32)if_freq_shift; 7163e54a169SMatthias Schwarzott 7173e54a169SMatthias Schwarzott if (state->config.inversion) 7183e54a169SMatthias Schwarzott reg_value = -reg_value; 7193e54a169SMatthias Schwarzott 7203e54a169SMatthias Schwarzott reg_value = reg_value & 0x1fffffff; 7213e54a169SMatthias Schwarzott 7223e54a169SMatthias Schwarzott /* if_freq_shift, usbdump contained 0x023ee08f; */ 723814f86c9SMatthias Schwarzott return si2165_writereg32(state, REG_IF_FREQ_SHIFT, reg_value); 7243e54a169SMatthias Schwarzott } 7253e54a169SMatthias Schwarzott 72625e73753SMatthias Schwarzott static const struct si2165_reg_value_pair dvbt_regs[] = { 72725e73753SMatthias Schwarzott /* standard = DVB-T */ 728814f86c9SMatthias Schwarzott { REG_DVB_STANDARD, 0x01 }, 72925e73753SMatthias Schwarzott /* impulsive_noise_remover */ 730814f86c9SMatthias Schwarzott { REG_IMPULSIVE_NOISE_REM, 0x01 }, 731814f86c9SMatthias Schwarzott { REG_AUTO_RESET, 0x00 }, 73225e73753SMatthias Schwarzott /* agc2 */ 733814f86c9SMatthias Schwarzott { REG_AGC2_MIN, 0x41 }, 734814f86c9SMatthias Schwarzott { REG_AGC2_KACQ, 0x0e }, 735814f86c9SMatthias Schwarzott { REG_AGC2_KLOC, 0x10 }, 73625e73753SMatthias Schwarzott /* agc */ 737814f86c9SMatthias Schwarzott { REG_AGC_UNFREEZE_THR, 0x03 }, 738814f86c9SMatthias Schwarzott { REG_AGC_CRESTF_DBX8, 0x78 }, 73925e73753SMatthias Schwarzott /* agc */ 740814f86c9SMatthias Schwarzott { REG_AAF_CRESTF_DBX8, 0x78 }, 741814f86c9SMatthias Schwarzott { REG_ACI_CRESTF_DBX8, 0x68 }, 74225e73753SMatthias Schwarzott /* freq_sync_range */ 743814f86c9SMatthias Schwarzott REG16(REG_FREQ_SYNC_RANGE, 0x0064), 74425e73753SMatthias Schwarzott /* gp_reg0 */ 745814f86c9SMatthias Schwarzott { REG_GP_REG0_MSB, 0x00 } 74625e73753SMatthias Schwarzott }; 74725e73753SMatthias Schwarzott 7483b0c9807SMatthias Schwarzott static int si2165_set_frontend_dvbt(struct dvb_frontend *fe) 7493e54a169SMatthias Schwarzott { 7503e54a169SMatthias Schwarzott int ret; 7513e54a169SMatthias Schwarzott struct dtv_frontend_properties *p = &fe->dtv_property_cache; 7523e54a169SMatthias Schwarzott struct si2165_state *state = fe->demodulator_priv; 7533e54a169SMatthias Schwarzott u32 dvb_rate = 0; 7543e54a169SMatthias Schwarzott u16 bw10k; 7557655a3aeSMatthias Schwarzott u32 bw_hz = p->bandwidth_hz; 7563e54a169SMatthias Schwarzott 7571b54da77SMatthias Schwarzott dev_dbg(&state->client->dev, "%s: called\n", __func__); 7583e54a169SMatthias Schwarzott 7593e54a169SMatthias Schwarzott if (!state->has_dvbt) 7603e54a169SMatthias Schwarzott return -EINVAL; 7613e54a169SMatthias Schwarzott 7627655a3aeSMatthias Schwarzott /* no bandwidth auto-detection */ 7637655a3aeSMatthias Schwarzott if (bw_hz == 0) 7647655a3aeSMatthias Schwarzott return -EINVAL; 7657655a3aeSMatthias Schwarzott 7667655a3aeSMatthias Schwarzott dvb_rate = bw_hz * 8 / 7; 7677655a3aeSMatthias Schwarzott bw10k = bw_hz / 10000; 7683e54a169SMatthias Schwarzott 7693e54a169SMatthias Schwarzott ret = si2165_adjust_pll_divl(state, 12); 7703e54a169SMatthias Schwarzott if (ret < 0) 7713e54a169SMatthias Schwarzott return ret; 7723e54a169SMatthias Schwarzott 7733e54a169SMatthias Schwarzott /* bandwidth in 10KHz steps */ 774814f86c9SMatthias Schwarzott ret = si2165_writereg16(state, REG_T_BANDWIDTH, bw10k); 7753e54a169SMatthias Schwarzott if (ret < 0) 7763e54a169SMatthias Schwarzott return ret; 7773e54a169SMatthias Schwarzott ret = si2165_set_oversamp(state, dvb_rate); 7783e54a169SMatthias Schwarzott if (ret < 0) 7793e54a169SMatthias Schwarzott return ret; 78025e73753SMatthias Schwarzott 78125e73753SMatthias Schwarzott ret = si2165_write_reg_list(state, dvbt_regs, ARRAY_SIZE(dvbt_regs)); 7823e54a169SMatthias Schwarzott if (ret < 0) 7833e54a169SMatthias Schwarzott return ret; 78425e73753SMatthias Schwarzott 7853b0c9807SMatthias Schwarzott return 0; 7863b0c9807SMatthias Schwarzott } 7873b0c9807SMatthias Schwarzott 78894c17334SMatthias Schwarzott static const struct si2165_reg_value_pair dvbc_regs[] = { 78994c17334SMatthias Schwarzott /* standard = DVB-C */ 790814f86c9SMatthias Schwarzott { REG_DVB_STANDARD, 0x05 }, 79194c17334SMatthias Schwarzott 79294c17334SMatthias Schwarzott /* agc2 */ 793814f86c9SMatthias Schwarzott { REG_AGC2_MIN, 0x50 }, 794814f86c9SMatthias Schwarzott { REG_AGC2_KACQ, 0x0e }, 795814f86c9SMatthias Schwarzott { REG_AGC2_KLOC, 0x10 }, 79694c17334SMatthias Schwarzott /* agc */ 797814f86c9SMatthias Schwarzott { REG_AGC_UNFREEZE_THR, 0x03 }, 798814f86c9SMatthias Schwarzott { REG_AGC_CRESTF_DBX8, 0x68 }, 79994c17334SMatthias Schwarzott /* agc */ 800814f86c9SMatthias Schwarzott { REG_AAF_CRESTF_DBX8, 0x68 }, 801814f86c9SMatthias Schwarzott { REG_ACI_CRESTF_DBX8, 0x50 }, 80294c17334SMatthias Schwarzott 803814f86c9SMatthias Schwarzott { REG_EQ_AUTO_CONTROL, 0x0d }, 80494c17334SMatthias Schwarzott 805814f86c9SMatthias Schwarzott { REG_KP_LOCK, 0x05 }, 806814f86c9SMatthias Schwarzott { REG_CENTRAL_TAP, 0x09 }, 807814f86c9SMatthias Schwarzott REG16(REG_UNKNOWN_350, 0x3e80), 80894c17334SMatthias Schwarzott 809814f86c9SMatthias Schwarzott { REG_AUTO_RESET, 0x01 }, 810814f86c9SMatthias Schwarzott REG16(REG_UNKNOWN_24C, 0x0000), 811814f86c9SMatthias Schwarzott REG16(REG_UNKNOWN_27C, 0x0000), 812814f86c9SMatthias Schwarzott { REG_SWEEP_STEP, 0x03 }, 813814f86c9SMatthias Schwarzott { REG_AGC_IF_TRI, 0x00 }, 81494c17334SMatthias Schwarzott }; 81594c17334SMatthias Schwarzott 81694c17334SMatthias Schwarzott static int si2165_set_frontend_dvbc(struct dvb_frontend *fe) 81794c17334SMatthias Schwarzott { 81894c17334SMatthias Schwarzott struct si2165_state *state = fe->demodulator_priv; 81994c17334SMatthias Schwarzott int ret; 82094c17334SMatthias Schwarzott struct dtv_frontend_properties *p = &fe->dtv_property_cache; 82194c17334SMatthias Schwarzott const u32 dvb_rate = p->symbol_rate; 822548b1f94SMatthias Schwarzott u8 u8tmp; 82394c17334SMatthias Schwarzott 82494c17334SMatthias Schwarzott if (!state->has_dvbc) 82594c17334SMatthias Schwarzott return -EINVAL; 82694c17334SMatthias Schwarzott 82794c17334SMatthias Schwarzott if (dvb_rate == 0) 82894c17334SMatthias Schwarzott return -EINVAL; 82994c17334SMatthias Schwarzott 83094c17334SMatthias Schwarzott ret = si2165_adjust_pll_divl(state, 14); 83194c17334SMatthias Schwarzott if (ret < 0) 83294c17334SMatthias Schwarzott return ret; 83394c17334SMatthias Schwarzott 83494c17334SMatthias Schwarzott /* Oversampling */ 83594c17334SMatthias Schwarzott ret = si2165_set_oversamp(state, dvb_rate); 83694c17334SMatthias Schwarzott if (ret < 0) 83794c17334SMatthias Schwarzott return ret; 83894c17334SMatthias Schwarzott 839548b1f94SMatthias Schwarzott switch (p->modulation) { 840548b1f94SMatthias Schwarzott case QPSK: 841548b1f94SMatthias Schwarzott u8tmp = 0x3; 842548b1f94SMatthias Schwarzott break; 843548b1f94SMatthias Schwarzott case QAM_16: 844548b1f94SMatthias Schwarzott u8tmp = 0x7; 845548b1f94SMatthias Schwarzott break; 846548b1f94SMatthias Schwarzott case QAM_32: 847548b1f94SMatthias Schwarzott u8tmp = 0x8; 848548b1f94SMatthias Schwarzott break; 849548b1f94SMatthias Schwarzott case QAM_64: 850548b1f94SMatthias Schwarzott u8tmp = 0x9; 851548b1f94SMatthias Schwarzott break; 852548b1f94SMatthias Schwarzott case QAM_128: 853548b1f94SMatthias Schwarzott u8tmp = 0xa; 854548b1f94SMatthias Schwarzott break; 855548b1f94SMatthias Schwarzott case QAM_256: 856548b1f94SMatthias Schwarzott default: 857548b1f94SMatthias Schwarzott u8tmp = 0xb; 858548b1f94SMatthias Schwarzott break; 859548b1f94SMatthias Schwarzott } 860548b1f94SMatthias Schwarzott ret = si2165_writereg8(state, REG_REQ_CONSTELLATION, u8tmp); 861548b1f94SMatthias Schwarzott if (ret < 0) 862548b1f94SMatthias Schwarzott return ret; 863548b1f94SMatthias Schwarzott 864f4d90518SMatthias Schwarzott ret = si2165_writereg32(state, REG_LOCK_TIMEOUT, 0x007a1200); 86594c17334SMatthias Schwarzott if (ret < 0) 86694c17334SMatthias Schwarzott return ret; 86794c17334SMatthias Schwarzott 86894c17334SMatthias Schwarzott ret = si2165_write_reg_list(state, dvbc_regs, ARRAY_SIZE(dvbc_regs)); 86994c17334SMatthias Schwarzott if (ret < 0) 87094c17334SMatthias Schwarzott return ret; 87194c17334SMatthias Schwarzott 87294c17334SMatthias Schwarzott return 0; 87394c17334SMatthias Schwarzott } 87494c17334SMatthias Schwarzott 875814f86c9SMatthias Schwarzott static const struct si2165_reg_value_pair adc_rewrite[] = { 876814f86c9SMatthias Schwarzott { REG_ADC_RI1, 0x46 }, 877814f86c9SMatthias Schwarzott { REG_ADC_RI3, 0x00 }, 878814f86c9SMatthias Schwarzott { REG_ADC_RI5, 0x0a }, 879814f86c9SMatthias Schwarzott { REG_ADC_RI6, 0xff }, 880814f86c9SMatthias Schwarzott { REG_ADC_RI8, 0x70 } 8813b0c9807SMatthias Schwarzott }; 8823b0c9807SMatthias Schwarzott 8833b0c9807SMatthias Schwarzott static int si2165_set_frontend(struct dvb_frontend *fe) 8843b0c9807SMatthias Schwarzott { 8853b0c9807SMatthias Schwarzott struct si2165_state *state = fe->demodulator_priv; 8863b0c9807SMatthias Schwarzott struct dtv_frontend_properties *p = &fe->dtv_property_cache; 8873b0c9807SMatthias Schwarzott u32 delsys = p->delivery_system; 8883b0c9807SMatthias Schwarzott int ret; 8893b0c9807SMatthias Schwarzott u8 val[3]; 8903b0c9807SMatthias Schwarzott 8913b0c9807SMatthias Schwarzott /* initial setting of if freq shift */ 8923b0c9807SMatthias Schwarzott ret = si2165_set_if_freq_shift(state); 8933b0c9807SMatthias Schwarzott if (ret < 0) 8943b0c9807SMatthias Schwarzott return ret; 8953b0c9807SMatthias Schwarzott 8963b0c9807SMatthias Schwarzott switch (delsys) { 8973b0c9807SMatthias Schwarzott case SYS_DVBT: 8983b0c9807SMatthias Schwarzott ret = si2165_set_frontend_dvbt(fe); 8993b0c9807SMatthias Schwarzott if (ret < 0) 9003b0c9807SMatthias Schwarzott return ret; 9013b0c9807SMatthias Schwarzott break; 90294c17334SMatthias Schwarzott case SYS_DVBC_ANNEX_A: 90394c17334SMatthias Schwarzott ret = si2165_set_frontend_dvbc(fe); 90494c17334SMatthias Schwarzott if (ret < 0) 90594c17334SMatthias Schwarzott return ret; 90694c17334SMatthias Schwarzott break; 9073b0c9807SMatthias Schwarzott default: 9083b0c9807SMatthias Schwarzott return -EINVAL; 9093b0c9807SMatthias Schwarzott } 9103b0c9807SMatthias Schwarzott 9113e54a169SMatthias Schwarzott /* dsp_addr_jump */ 912814f86c9SMatthias Schwarzott ret = si2165_writereg32(state, REG_ADDR_JUMP, 0xf4000000); 9133e54a169SMatthias Schwarzott if (ret < 0) 9143e54a169SMatthias Schwarzott return ret; 9153e54a169SMatthias Schwarzott 9163e54a169SMatthias Schwarzott if (fe->ops.tuner_ops.set_params) 9173e54a169SMatthias Schwarzott fe->ops.tuner_ops.set_params(fe); 9183e54a169SMatthias Schwarzott 9193e54a169SMatthias Schwarzott /* recalc if_freq_shift if IF might has changed */ 920542fb3c5SMatthias Schwarzott ret = si2165_set_if_freq_shift(state); 9213e54a169SMatthias Schwarzott if (ret < 0) 9223e54a169SMatthias Schwarzott return ret; 9233e54a169SMatthias Schwarzott 9243e54a169SMatthias Schwarzott /* boot/wdog status */ 925814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_WDOG_AND_BOOT, val); 9263e54a169SMatthias Schwarzott if (ret < 0) 9273e54a169SMatthias Schwarzott return ret; 928814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_WDOG_AND_BOOT, 0x00); 9293e54a169SMatthias Schwarzott if (ret < 0) 9303e54a169SMatthias Schwarzott return ret; 9313b0c9807SMatthias Schwarzott 9323e54a169SMatthias Schwarzott /* reset all */ 933814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_RST_ALL, 0x00); 9343e54a169SMatthias Schwarzott if (ret < 0) 9353e54a169SMatthias Schwarzott return ret; 9363e54a169SMatthias Schwarzott /* gp_reg0 */ 937814f86c9SMatthias Schwarzott ret = si2165_writereg32(state, REG_GP_REG0_LSB, 0x00000000); 9383e54a169SMatthias Schwarzott if (ret < 0) 9393e54a169SMatthias Schwarzott return ret; 940eae56684SMatthias Schwarzott 941eae56684SMatthias Schwarzott /* write adc values after each reset*/ 942814f86c9SMatthias Schwarzott ret = si2165_write_reg_list(state, adc_rewrite, 943814f86c9SMatthias Schwarzott ARRAY_SIZE(adc_rewrite)); 944eae56684SMatthias Schwarzott if (ret < 0) 945eae56684SMatthias Schwarzott return ret; 946eae56684SMatthias Schwarzott 9473e54a169SMatthias Schwarzott /* start_synchro */ 948814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_START_SYNCHRO, 0x01); 9493e54a169SMatthias Schwarzott if (ret < 0) 9503e54a169SMatthias Schwarzott return ret; 9513e54a169SMatthias Schwarzott /* boot/wdog status */ 952814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_WDOG_AND_BOOT, val); 9533e54a169SMatthias Schwarzott if (ret < 0) 9543e54a169SMatthias Schwarzott return ret; 9553e54a169SMatthias Schwarzott 9563e54a169SMatthias Schwarzott return 0; 9573e54a169SMatthias Schwarzott } 9583e54a169SMatthias Schwarzott 959bd336e63SMax Kellermann static const struct dvb_frontend_ops si2165_ops = { 9603e54a169SMatthias Schwarzott .info = { 961119bd82eSMatthias Schwarzott .name = "Silicon Labs ", 96294c17334SMatthias Schwarzott /* For DVB-C */ 96394c17334SMatthias Schwarzott .symbol_rate_min = 1000000, 96494c17334SMatthias Schwarzott .symbol_rate_max = 7200000, 96594c17334SMatthias Schwarzott /* For DVB-T */ 96694c17334SMatthias Schwarzott .frequency_stepsize = 166667, 9673e54a169SMatthias Schwarzott .caps = FE_CAN_FEC_1_2 | 9683e54a169SMatthias Schwarzott FE_CAN_FEC_2_3 | 9693e54a169SMatthias Schwarzott FE_CAN_FEC_3_4 | 9703e54a169SMatthias Schwarzott FE_CAN_FEC_5_6 | 9713e54a169SMatthias Schwarzott FE_CAN_FEC_7_8 | 9723e54a169SMatthias Schwarzott FE_CAN_FEC_AUTO | 9733e54a169SMatthias Schwarzott FE_CAN_QPSK | 9743e54a169SMatthias Schwarzott FE_CAN_QAM_16 | 9753e54a169SMatthias Schwarzott FE_CAN_QAM_32 | 9763e54a169SMatthias Schwarzott FE_CAN_QAM_64 | 9773e54a169SMatthias Schwarzott FE_CAN_QAM_128 | 9783e54a169SMatthias Schwarzott FE_CAN_QAM_256 | 9793e54a169SMatthias Schwarzott FE_CAN_GUARD_INTERVAL_AUTO | 9803e54a169SMatthias Schwarzott FE_CAN_HIERARCHY_AUTO | 9813e54a169SMatthias Schwarzott FE_CAN_MUTE_TS | 9823e54a169SMatthias Schwarzott FE_CAN_TRANSMISSION_MODE_AUTO | 9833e54a169SMatthias Schwarzott FE_CAN_RECOVER 9843e54a169SMatthias Schwarzott }, 9853e54a169SMatthias Schwarzott 9863e54a169SMatthias Schwarzott .get_tune_settings = si2165_get_tune_settings, 9873e54a169SMatthias Schwarzott 9883e54a169SMatthias Schwarzott .init = si2165_init, 9893e54a169SMatthias Schwarzott .sleep = si2165_sleep, 9903e54a169SMatthias Schwarzott 991c1c49674SMatthias Schwarzott .set_frontend = si2165_set_frontend, 9923e54a169SMatthias Schwarzott .read_status = si2165_read_status, 9933e54a169SMatthias Schwarzott }; 9943e54a169SMatthias Schwarzott 9957cd785adSMatthias Schwarzott static int si2165_probe(struct i2c_client *client, 9967cd785adSMatthias Schwarzott const struct i2c_device_id *id) 9977cd785adSMatthias Schwarzott { 9987cd785adSMatthias Schwarzott struct si2165_state *state = NULL; 9997cd785adSMatthias Schwarzott struct si2165_platform_data *pdata = client->dev.platform_data; 10007cd785adSMatthias Schwarzott int n; 10017cd785adSMatthias Schwarzott int ret = 0; 10027cd785adSMatthias Schwarzott u8 val; 10037cd785adSMatthias Schwarzott char rev_char; 10047cd785adSMatthias Schwarzott const char *chip_name; 1005e3ea5e94SMatthias Schwarzott static const struct regmap_config regmap_config = { 1006e3ea5e94SMatthias Schwarzott .reg_bits = 16, 1007e3ea5e94SMatthias Schwarzott .val_bits = 8, 1008e3ea5e94SMatthias Schwarzott .max_register = 0x08ff, 1009e3ea5e94SMatthias Schwarzott }; 10107cd785adSMatthias Schwarzott 10117cd785adSMatthias Schwarzott /* allocate memory for the internal state */ 10127dbbb4bfSMatthias Schwarzott state = kzalloc(sizeof(*state), GFP_KERNEL); 10137dbbb4bfSMatthias Schwarzott if (!state) { 10147cd785adSMatthias Schwarzott ret = -ENOMEM; 10157cd785adSMatthias Schwarzott goto error; 10167cd785adSMatthias Schwarzott } 10177cd785adSMatthias Schwarzott 1018e3ea5e94SMatthias Schwarzott /* create regmap */ 1019e3ea5e94SMatthias Schwarzott state->regmap = devm_regmap_init_i2c(client, ®map_config); 1020e3ea5e94SMatthias Schwarzott if (IS_ERR(state->regmap)) { 1021e3ea5e94SMatthias Schwarzott ret = PTR_ERR(state->regmap); 1022e3ea5e94SMatthias Schwarzott goto error; 1023e3ea5e94SMatthias Schwarzott } 1024e3ea5e94SMatthias Schwarzott 10257cd785adSMatthias Schwarzott /* setup the state */ 10267cd785adSMatthias Schwarzott state->client = client; 10277cd785adSMatthias Schwarzott state->config.i2c_addr = client->addr; 10287cd785adSMatthias Schwarzott state->config.chip_mode = pdata->chip_mode; 10297dbbb4bfSMatthias Schwarzott state->config.ref_freq_hz = pdata->ref_freq_hz; 10307cd785adSMatthias Schwarzott state->config.inversion = pdata->inversion; 10317cd785adSMatthias Schwarzott 10327dbbb4bfSMatthias Schwarzott if (state->config.ref_freq_hz < 4000000 || 10337dbbb4bfSMatthias Schwarzott state->config.ref_freq_hz > 27000000) { 103477f887cdSMatthias Schwarzott dev_err(&state->client->dev, "ref_freq of %d Hz not supported by this driver\n", 10357dbbb4bfSMatthias Schwarzott state->config.ref_freq_hz); 10367cd785adSMatthias Schwarzott ret = -EINVAL; 10377cd785adSMatthias Schwarzott goto error; 10387cd785adSMatthias Schwarzott } 10397cd785adSMatthias Schwarzott 10407cd785adSMatthias Schwarzott /* create dvb_frontend */ 10417cd785adSMatthias Schwarzott memcpy(&state->fe.ops, &si2165_ops, 10427cd785adSMatthias Schwarzott sizeof(struct dvb_frontend_ops)); 10437cd785adSMatthias Schwarzott state->fe.ops.release = NULL; 10447cd785adSMatthias Schwarzott state->fe.demodulator_priv = state; 10457cd785adSMatthias Schwarzott i2c_set_clientdata(client, state); 10467cd785adSMatthias Schwarzott 10477cd785adSMatthias Schwarzott /* powerup */ 1048814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_CHIP_MODE, state->config.chip_mode); 10497cd785adSMatthias Schwarzott if (ret < 0) 10507cd785adSMatthias Schwarzott goto nodev_error; 10517cd785adSMatthias Schwarzott 1052814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_CHIP_MODE, &val); 10537cd785adSMatthias Schwarzott if (ret < 0) 10547cd785adSMatthias Schwarzott goto nodev_error; 10557cd785adSMatthias Schwarzott if (val != state->config.chip_mode) 10567cd785adSMatthias Schwarzott goto nodev_error; 10577cd785adSMatthias Schwarzott 1058814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REG_CHIP_REVCODE, &state->chip_revcode); 10597cd785adSMatthias Schwarzott if (ret < 0) 10607cd785adSMatthias Schwarzott goto nodev_error; 10617cd785adSMatthias Schwarzott 1062814f86c9SMatthias Schwarzott ret = si2165_readreg8(state, REV_CHIP_TYPE, &state->chip_type); 10637cd785adSMatthias Schwarzott if (ret < 0) 10647cd785adSMatthias Schwarzott goto nodev_error; 10657cd785adSMatthias Schwarzott 10667cd785adSMatthias Schwarzott /* powerdown */ 1067814f86c9SMatthias Schwarzott ret = si2165_writereg8(state, REG_CHIP_MODE, SI2165_MODE_OFF); 10687cd785adSMatthias Schwarzott if (ret < 0) 10697cd785adSMatthias Schwarzott goto nodev_error; 10707cd785adSMatthias Schwarzott 10717cd785adSMatthias Schwarzott if (state->chip_revcode < 26) 10727cd785adSMatthias Schwarzott rev_char = 'A' + state->chip_revcode; 10737cd785adSMatthias Schwarzott else 10747cd785adSMatthias Schwarzott rev_char = '?'; 10757cd785adSMatthias Schwarzott 10767cd785adSMatthias Schwarzott switch (state->chip_type) { 10777cd785adSMatthias Schwarzott case 0x06: 10787cd785adSMatthias Schwarzott chip_name = "Si2161"; 10797cd785adSMatthias Schwarzott state->has_dvbt = true; 10807cd785adSMatthias Schwarzott break; 10817cd785adSMatthias Schwarzott case 0x07: 10827cd785adSMatthias Schwarzott chip_name = "Si2165"; 10837cd785adSMatthias Schwarzott state->has_dvbt = true; 10847cd785adSMatthias Schwarzott state->has_dvbc = true; 10857cd785adSMatthias Schwarzott break; 10867cd785adSMatthias Schwarzott default: 108777f887cdSMatthias Schwarzott dev_err(&state->client->dev, "Unsupported Silicon Labs chip (type %d, rev %d)\n", 108877f887cdSMatthias Schwarzott state->chip_type, state->chip_revcode); 10897cd785adSMatthias Schwarzott goto nodev_error; 10907cd785adSMatthias Schwarzott } 10917cd785adSMatthias Schwarzott 1092aa155449SMatthias Schwarzott dev_info(&state->client->dev, 109377f887cdSMatthias Schwarzott "Detected Silicon Labs %s-%c (type %d, rev %d)\n", 109477f887cdSMatthias Schwarzott chip_name, rev_char, state->chip_type, 10957cd785adSMatthias Schwarzott state->chip_revcode); 10967cd785adSMatthias Schwarzott 10977cd785adSMatthias Schwarzott strlcat(state->fe.ops.info.name, chip_name, 10987cd785adSMatthias Schwarzott sizeof(state->fe.ops.info.name)); 10997cd785adSMatthias Schwarzott 11007cd785adSMatthias Schwarzott n = 0; 11017cd785adSMatthias Schwarzott if (state->has_dvbt) { 11027cd785adSMatthias Schwarzott state->fe.ops.delsys[n++] = SYS_DVBT; 11037cd785adSMatthias Schwarzott strlcat(state->fe.ops.info.name, " DVB-T", 11047cd785adSMatthias Schwarzott sizeof(state->fe.ops.info.name)); 11057cd785adSMatthias Schwarzott } 11067cd785adSMatthias Schwarzott if (state->has_dvbc) { 11077cd785adSMatthias Schwarzott state->fe.ops.delsys[n++] = SYS_DVBC_ANNEX_A; 11087cd785adSMatthias Schwarzott strlcat(state->fe.ops.info.name, " DVB-C", 11097cd785adSMatthias Schwarzott sizeof(state->fe.ops.info.name)); 11107cd785adSMatthias Schwarzott } 11117cd785adSMatthias Schwarzott 11127cd785adSMatthias Schwarzott /* return fe pointer */ 11137cd785adSMatthias Schwarzott *pdata->fe = &state->fe; 11147cd785adSMatthias Schwarzott 11157cd785adSMatthias Schwarzott return 0; 11167cd785adSMatthias Schwarzott 11177cd785adSMatthias Schwarzott nodev_error: 11187cd785adSMatthias Schwarzott ret = -ENODEV; 11197cd785adSMatthias Schwarzott error: 11207cd785adSMatthias Schwarzott kfree(state); 11217cd785adSMatthias Schwarzott dev_dbg(&client->dev, "failed=%d\n", ret); 11227cd785adSMatthias Schwarzott return ret; 11237cd785adSMatthias Schwarzott } 11247cd785adSMatthias Schwarzott 11257cd785adSMatthias Schwarzott static int si2165_remove(struct i2c_client *client) 11267cd785adSMatthias Schwarzott { 11277cd785adSMatthias Schwarzott struct si2165_state *state = i2c_get_clientdata(client); 11287cd785adSMatthias Schwarzott 11297cd785adSMatthias Schwarzott dev_dbg(&client->dev, "\n"); 11307cd785adSMatthias Schwarzott 11317cd785adSMatthias Schwarzott kfree(state); 11327cd785adSMatthias Schwarzott return 0; 11337cd785adSMatthias Schwarzott } 11347cd785adSMatthias Schwarzott 11357cd785adSMatthias Schwarzott static const struct i2c_device_id si2165_id_table[] = { 11367cd785adSMatthias Schwarzott {"si2165", 0}, 11377cd785adSMatthias Schwarzott {} 11387cd785adSMatthias Schwarzott }; 11397cd785adSMatthias Schwarzott MODULE_DEVICE_TABLE(i2c, si2165_id_table); 11407cd785adSMatthias Schwarzott 11417cd785adSMatthias Schwarzott static struct i2c_driver si2165_driver = { 11427cd785adSMatthias Schwarzott .driver = { 11437cd785adSMatthias Schwarzott .owner = THIS_MODULE, 11447cd785adSMatthias Schwarzott .name = "si2165", 11457cd785adSMatthias Schwarzott }, 11467cd785adSMatthias Schwarzott .probe = si2165_probe, 11477cd785adSMatthias Schwarzott .remove = si2165_remove, 11487cd785adSMatthias Schwarzott .id_table = si2165_id_table, 11497cd785adSMatthias Schwarzott }; 11507cd785adSMatthias Schwarzott 11517cd785adSMatthias Schwarzott module_i2c_driver(si2165_driver); 11527cd785adSMatthias Schwarzott 11533e54a169SMatthias Schwarzott MODULE_DESCRIPTION("Silicon Labs Si2165 DVB-C/-T Demodulator driver"); 11543e54a169SMatthias Schwarzott MODULE_AUTHOR("Matthias Schwarzott <zzam@gentoo.org>"); 11553e54a169SMatthias Schwarzott MODULE_LICENSE("GPL"); 115655bea400SMatthias Schwarzott MODULE_FIRMWARE(SI2165_FIRMWARE_REV_D); 1157