Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751929AbaJEJCs (ORCPT ); Sun, 5 Oct 2014 05:02:48 -0400 Received: from mail-pd0-f175.google.com ([209.85.192.175]:35893 "EHLO mail-pd0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751366AbaJEJAH (ORCPT ); Sun, 5 Oct 2014 05:00:07 -0400 From: "=?UTF-8?q?=D0=91=D1=83=D0=B4=D0=B8=20=D0=A0=D0=BE=D0=BC=D0=B0=D0=BD=D1=82=D0=BE=2C=20AreMa=20Inc?=" X-Google-Original-From: =?UTF-8?q?=D0=91=D1=83=D0=B4=D0=B8=20=D0=A0=D0=BE=D0=BC=D0=B0=D0=BD=D1=82=D0=BE=2C=20AreMa=20Inc?= To: linux-media@vger.kernel.org Cc: linux-kernel@vger.kernel.org, crope@iki.fi, m.chehab@samsung.com, mchehab@osg.samsung.com, hdegoede@redhat.com, laurent.pinchart@ideasonboard.com, mkrufky@linuxtv.org, sylvester.nawrocki@gmail.com, g.liakhovetski@gmx.de, peter.senna@gmail.com Subject: [PATCH 03/11] tc90522: use hardware algorithm & correct CNR Date: Sun, 5 Oct 2014 17:59:39 +0900 Message-Id: <42c7bd27ff4a188ab2692f2567ec6097ac5fb4d1.1412497399.git.knightrider@are.ma> X-Mailer: git-send-email 1.8.4.5 In-Reply-To: References: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 1. The chip is clever enough to do fine tuning. Thus, simply let dvb-core do the iteration of hw_algo. 2. Tsukada's patch violates the consensus in include/uapi/linux/dvb/frontend.h Change CNR unit from .001 dB to .0001 dB, and yet lightweight calculus using only shifters for divs. Signed-off-by: Буди Романто, AreMa Inc --- drivers/media/dvb-frontends/tc90522.c | 1146 ++++++++++++--------------------- 1 file changed, 427 insertions(+), 719 deletions(-) diff --git a/drivers/media/dvb-frontends/tc90522.c b/drivers/media/dvb-frontends/tc90522.c index d9905fb..cf19cfb 100644 --- a/drivers/media/dvb-frontends/tc90522.c +++ b/drivers/media/dvb-frontends/tc90522.c @@ -1,12 +1,12 @@ /* - * Toshiba TC90522 Demodulator + * Toshiba TC90522XBG 2ch OFDM(ISDB-T) + 2ch 8PSK(ISDB-S) demodulator frontend for Earthsoft PT3 * - * Copyright (C) 2014 Akihiro Tsukada - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. + * Copyright (C) 2014 Budi Rachmanto, AreMa Inc. * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -14,827 +14,535 @@ * GNU General Public License for more details. */ -/* - * NOTICE: - * This driver is incomplete and lacks init/config of the chips, - * as the necessary info is not disclosed. - * It assumes that users of this driver (such as a PCI bridge of - * DTV receiver cards) properly init and configure the chip - * via I2C *before* calling this driver's init() function. - * - * Currently, PT3 driver is the only one that uses this driver, - * and contains init/config code in its firmware. - * Thus some part of the code might be dependent on PT3 specific config. - */ - -#include -#include -#include #include "dvb_math.h" +#include "dvb_frontend.h" #include "tc90522.h" -#define TC90522_I2C_THRU_REG 0xfe - -#define TC90522_MODULE_IDX(addr) (((u8)(addr) & 0x02U) >> 1) +#define TC90522_PASSTHROUGH 0xfe -struct tc90522_state { - struct tc90522_config cfg; - struct dvb_frontend fe; - struct i2c_client *i2c_client; - struct i2c_adapter tuner_i2c; - - bool lna; +enum tc90522_state { + TC90522_IDLE, + TC90522_SET_FREQUENCY, + TC90522_SET_MODULATION, + TC90522_TRACK, + TC90522_ABORT, }; -struct reg_val { - u8 reg; - u8 val; +struct tc90522 { + struct dvb_frontend fe; + struct i2c_adapter *i2c; + fe_delivery_system_t type; + u8 idx, addr_demod; + s32 offset; + enum tc90522_state state; }; -static int -reg_write(struct tc90522_state *state, const struct reg_val *regs, int num) +int tc90522_write(struct dvb_frontend *fe, const u8 *data, int len) { - int i, ret; - struct i2c_msg msg; - - ret = 0; - msg.addr = state->i2c_client->addr; - msg.flags = 0; - msg.len = 2; - for (i = 0; i < num; i++) { - msg.buf = (u8 *)®s[i]; - ret = i2c_transfer(state->i2c_client->adapter, &msg, 1); - if (ret == 0) - ret = -EIO; - if (ret < 0) - return ret; - } - return 0; -} - -static int reg_read(struct tc90522_state *state, u8 reg, u8 *val, u8 len) -{ - struct i2c_msg msgs[2] = { - { - .addr = state->i2c_client->addr, - .flags = 0, - .buf = ®, - .len = 1, - }, - { - .addr = state->i2c_client->addr, - .flags = I2C_M_RD, - .buf = val, - .len = len, - }, + struct tc90522 *demod = fe->demodulator_priv; + struct i2c_msg msg[] = { + { .addr = demod->addr_demod, .flags = 0, .buf = (u8 *)data, .len = len, }, }; - int ret; - - ret = i2c_transfer(state->i2c_client->adapter, msgs, ARRAY_SIZE(msgs)); - if (ret == ARRAY_SIZE(msgs)) - ret = 0; - else if (ret >= 0) - ret = -EIO; - return ret; -} -static struct tc90522_state *cfg_to_state(struct tc90522_config *c) -{ - return container_of(c, struct tc90522_state, cfg); + if (!data || !len) + return -EINVAL; + return i2c_transfer(demod->i2c, msg, 1) == 1 ? 0 : -EREMOTEIO; } - -static int tc90522s_set_tsid(struct dvb_frontend *fe) +int tc90522_write_data(struct dvb_frontend *fe, u8 addr_data, u8 *data, u8 len) { - struct reg_val set_tsid[] = { - { 0x8f, 00 }, - { 0x90, 00 } - }; + u8 buf[len + 1]; - set_tsid[0].val = (fe->dtv_property_cache.stream_id & 0xff00) >> 8; - set_tsid[1].val = fe->dtv_property_cache.stream_id & 0xff; - return reg_write(fe->demodulator_priv, set_tsid, ARRAY_SIZE(set_tsid)); + buf[0] = addr_data; + memcpy(buf + 1, data, len); + return tc90522_write(fe, buf, len + 1); } -static int tc90522t_set_layers(struct dvb_frontend *fe) +int tc90522_read(struct tc90522 *demod, u8 addr, u8 *buf, u8 len) { - struct reg_val rv; - u8 laysel; - - laysel = ~fe->dtv_property_cache.isdbt_layer_enabled & 0x07; - laysel = (laysel & 0x01) << 2 | (laysel & 0x02) | (laysel & 0x04) >> 2; - rv.reg = 0x71; - rv.val = laysel; - return reg_write(fe->demodulator_priv, &rv, 1); + struct i2c_msg msg[] = { + { .addr = demod->addr_demod, .flags = 0, .buf = buf, .len = 1, }, + { .addr = demod->addr_demod, .flags = I2C_M_RD, .buf = buf, .len = len, }, + }; + if (!buf || !len) + return -EINVAL; + buf[0] = addr; + return i2c_transfer(demod->i2c, msg, 2) == 2 ? 0 : -EREMOTEIO; } -/* frontend ops */ +u64 tc90522_n2int(const u8 *data, u8 n) /* convert n_bytes data from stream (network byte order) to integer */ +{ /* can't use 's ntoh*() as sometimes n = 3,5,... */ + u32 i, val = 0; -static int tc90522s_read_status(struct dvb_frontend *fe, fe_status_t *status) -{ - struct tc90522_state *state; - int ret; - u8 reg; - - state = fe->demodulator_priv; - ret = reg_read(state, 0xc3, ®, 1); - if (ret < 0) - return ret; - - *status = 0; - if (reg & 0x80) /* input level under min ? */ - return 0; - *status |= FE_HAS_SIGNAL; - - if (reg & 0x60) /* carrier? */ - return 0; - *status |= FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC; - - if (reg & 0x10) - return 0; - if (reg_read(state, 0xc5, ®, 1) < 0 || !(reg & 0x03)) - return 0; - *status |= FE_HAS_LOCK; - return 0; + for (i = 0; i < n; i++) { + val <<= 8; + val |= data[i]; + } + return val; } -static int tc90522t_read_status(struct dvb_frontend *fe, fe_status_t *status) +int tc90522_read_id_s(struct tc90522 *demod, u16 *id) { - struct tc90522_state *state; - int ret; - u8 reg; - - state = fe->demodulator_priv; - ret = reg_read(state, 0x96, ®, 1); - if (ret < 0) - return ret; - - *status = 0; - if (reg & 0xe0) { - *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI - | FE_HAS_SYNC | FE_HAS_LOCK; - return 0; - } - - ret = reg_read(state, 0x80, ®, 1); - if (ret < 0) - return ret; - - if (reg & 0xf0) - return 0; - *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER; + u8 buf[2]; + int err = tc90522_read(demod, 0xe6, buf, 2); - if (reg & 0x0c) - return 0; - *status |= FE_HAS_SYNC | FE_HAS_VITERBI; - - if (reg & 0x02) - return 0; - *status |= FE_HAS_LOCK; - return 0; + if (!err) + *id = tc90522_n2int(buf, 2); + return err; } -static const fe_code_rate_t fec_conv_sat[] = { - FEC_NONE, /* unused */ - FEC_1_2, /* for BPSK */ - FEC_1_2, FEC_2_3, FEC_3_4, FEC_5_6, FEC_7_8, /* for QPSK */ - FEC_2_3, /* for 8PSK. (trellis code) */ +struct tmcc_s { /* Transmission and Multiplexing Configuration Control */ + u32 mode[4]; + u32 slot[4]; + u32 id[8]; }; -static int tc90522s_get_frontend(struct dvb_frontend *fe) +int tc90522_read_tmcc_s(struct tc90522 *demod, struct tmcc_s *tmcc) { - struct tc90522_state *state; - struct dtv_frontend_properties *c; - struct dtv_fe_stats *stats; - int ret, i; - int layers; - u8 val[10]; - u32 cndat; - - state = fe->demodulator_priv; - c = &fe->dtv_property_cache; - c->delivery_system = SYS_ISDBS; - - layers = 0; - ret = reg_read(state, 0xe8, val, 3); - if (ret == 0) { - int slots; - u8 v; - - /* high/single layer */ - v = (val[0] & 0x70) >> 4; - c->modulation = (v == 7) ? PSK_8 : QPSK; - c->fec_inner = fec_conv_sat[v]; - c->layer[0].fec = c->fec_inner; - c->layer[0].modulation = c->modulation; - c->layer[0].segment_count = val[1] & 0x3f; /* slots */ - - /* low layer */ - v = (val[0] & 0x07); - c->layer[1].fec = fec_conv_sat[v]; - if (v == 0) /* no low layer */ - c->layer[1].segment_count = 0; - else - c->layer[1].segment_count = val[2] & 0x3f; /* slots */ - /* actually, BPSK if v==1, but not defined in fe_modulation_t */ - c->layer[1].modulation = QPSK; - layers = (v > 0) ? 2 : 1; - - slots = c->layer[0].segment_count + c->layer[1].segment_count; - c->symbol_rate = 28860000 * slots / 48; - } - - /* statistics */ - - stats = &c->strength; - stats->len = 0; - /* let the connected tuner set RSSI property cache */ - if (fe->ops.tuner_ops.get_rf_strength) { - u16 dummy; - - fe->ops.tuner_ops.get_rf_strength(fe, &dummy); - } - - stats = &c->cnr; - stats->len = 1; - stats->stat[0].scale = FE_SCALE_NOT_AVAILABLE; - cndat = 0; - ret = reg_read(state, 0xbc, val, 2); - if (ret == 0) - cndat = val[0] << 8 | val[1]; - if (cndat >= 3000) { - u32 p, p4; - s64 cn; - - cndat -= 3000; /* cndat: 4.12 fixed point float */ - /* - * cnr[mdB] = -1634.6 * P^5 + 14341 * P^4 - 50259 * P^3 - * + 88977 * P^2 - 89565 * P + 58857 - * (P = sqrt(cndat) / 64) - */ - /* p := sqrt(cndat) << 8 = P << 14, 2.14 fixed point float */ - /* cn = cnr << 3 */ - p = int_sqrt(cndat << 16); - p4 = cndat * cndat; - cn = div64_s64(-16346LL * p4 * p, 10) >> 35; - cn += (14341LL * p4) >> 21; - cn -= (50259LL * cndat * p) >> 23; - cn += (88977LL * cndat) >> 9; - cn -= (89565LL * p) >> 11; - cn += 58857 << 3; - stats->stat[0].svalue = cn >> 3; - stats->stat[0].scale = FE_SCALE_DECIBEL; - } - - /* per-layer post viterbi BER (or PER? config dependent?) */ - stats = &c->post_bit_error; - memset(stats, 0, sizeof(*stats)); - stats->len = layers; - ret = reg_read(state, 0xeb, val, 10); - if (ret < 0) - for (i = 0; i < layers; i++) - stats->stat[i].scale = FE_SCALE_NOT_AVAILABLE; - else { - for (i = 0; i < layers; i++) { - stats->stat[i].scale = FE_SCALE_COUNTER; - stats->stat[i].uvalue = val[i * 5] << 16 - | val[i * 5 + 1] << 8 | val[i * 5 + 2]; - } - } - stats = &c->post_bit_count; - memset(stats, 0, sizeof(*stats)); - stats->len = layers; - if (ret < 0) - for (i = 0; i < layers; i++) - stats->stat[i].scale = FE_SCALE_NOT_AVAILABLE; - else { - for (i = 0; i < layers; i++) { - stats->stat[i].scale = FE_SCALE_COUNTER; - stats->stat[i].uvalue = - val[i * 5 + 3] << 8 | val[i * 5 + 4]; - stats->stat[i].uvalue *= 204 * 8; - } + enum { + BASE = 0xc5, + SIZE = 0xe5 - BASE + 1 + }; + u8 data[SIZE]; + u32 i, byte_offset, bit_offset; + + int err = tc90522_read(demod, 0xc3, data, 1) || + ((data[0] >> 4) & 1) || + tc90522_read(demod, 0xce, data, 2) || + (tc90522_n2int(data, 2) == 0) || + tc90522_read(demod, 0xc3, data, 1) || + tc90522_read(demod, 0xc5, data, SIZE); + if (err) + return err; + for (i = 0; i < 4; i++) { + byte_offset = i >> 1; + bit_offset = (i & 1) ? 0 : 4; + tmcc->mode[i] = (data[0xc8 + byte_offset - BASE] >> bit_offset) & 0b00001111; + tmcc->slot[i] = (data[0xca + i - BASE] >> 0) & 0b00111111; } - + for (i = 0; i < 8; i++) + tmcc->id[i] = tc90522_n2int(data + 0xce + i * 2 - BASE, 2); return 0; } - -static const fe_transmit_mode_t tm_conv[] = { - TRANSMISSION_MODE_2K, - TRANSMISSION_MODE_4K, - TRANSMISSION_MODE_8K, - 0 +enum tc90522_pwr { + TC90522_PWR_OFF = 0x00, + TC90522_PWR_AMP_ON = 0x04, + TC90522_PWR_TUNER_ON = 0x40, }; -static const fe_code_rate_t fec_conv_ter[] = { - FEC_1_2, FEC_2_3, FEC_3_4, FEC_5_6, FEC_7_8, 0, 0, 0 -}; +int tc90522_set_powers(struct tc90522 *demod, enum tc90522_pwr pwr) +{ + u8 data = pwr | 0b10011001; -static const fe_modulation_t mod_conv[] = { - DQPSK, QPSK, QAM_16, QAM_64, 0, 0, 0, 0 -}; + dev_dbg(&demod->i2c->dev, "%s #%d %s tuner %s amp %s\n", demod->i2c->name, demod->idx, __func__, pwr & TC90522_PWR_TUNER_ON ? + "ON" : "OFF", pwr & TC90522_PWR_AMP_ON ? "ON" : "OFF"); + return tc90522_write_data(&demod->fe, 0x1e, &data, 1); +} -static int tc90522t_get_frontend(struct dvb_frontend *fe) +/* dvb_frontend_ops */ +int tc90522_get_frontend_algo(struct dvb_frontend *fe) { - struct tc90522_state *state; - struct dtv_frontend_properties *c; - struct dtv_fe_stats *stats; - int ret, i; - int layers; - u8 val[15], mode; - u32 cndat; - - state = fe->demodulator_priv; - c = &fe->dtv_property_cache; - c->delivery_system = SYS_ISDBT; - c->bandwidth_hz = 6000000; - mode = 1; - ret = reg_read(state, 0xb0, val, 1); - if (ret == 0) { - mode = (val[0] & 0xc0) >> 2; - c->transmission_mode = tm_conv[mode]; - c->guard_interval = (val[0] & 0x30) >> 4; - } - - ret = reg_read(state, 0xb2, val, 6); - layers = 0; - if (ret == 0) { - u8 v; - - c->isdbt_partial_reception = val[0] & 0x01; - c->isdbt_sb_mode = (val[0] & 0xc0) == 0x01; - - /* layer A */ - v = (val[2] & 0x78) >> 3; - if (v == 0x0f) - c->layer[0].segment_count = 0; - else { - layers++; - c->layer[0].segment_count = v; - c->layer[0].fec = fec_conv_ter[(val[1] & 0x1c) >> 2]; - c->layer[0].modulation = mod_conv[(val[1] & 0xe0) >> 5]; - v = (val[1] & 0x03) << 1 | (val[2] & 0x80) >> 7; - c->layer[0].interleaving = v; - } + return DVBFE_ALGO_HW; +} - /* layer B */ - v = (val[3] & 0x03) << 1 | (val[4] & 0xc0) >> 6; - if (v == 0x0f) - c->layer[1].segment_count = 0; - else { - layers++; - c->layer[1].segment_count = v; - c->layer[1].fec = fec_conv_ter[(val[3] & 0xe0) >> 5]; - c->layer[1].modulation = mod_conv[(val[2] & 0x07)]; - c->layer[1].interleaving = (val[3] & 0x1c) >> 2; - } +int tc90522_sleep(struct dvb_frontend *fe) +{ + struct tc90522 *demod = fe->demodulator_priv; - /* layer C */ - v = (val[5] & 0x1e) >> 1; - if (v == 0x0f) - c->layer[2].segment_count = 0; - else { - layers++; - c->layer[2].segment_count = v; - c->layer[2].fec = fec_conv_ter[(val[4] & 0x07)]; - c->layer[2].modulation = mod_conv[(val[4] & 0x38) >> 3]; - c->layer[2].interleaving = (val[5] & 0xe0) >> 5; - } - } + dev_dbg(&demod->i2c->dev, "%s #%d %s %s\n", demod->i2c->name, demod->idx, __func__, demod->type == SYS_ISDBS ? "S" : "T"); + return fe->ops.tuner_ops.sleep(fe); +} - /* statistics */ +int tc90522_wakeup(struct dvb_frontend *fe) +{ + struct tc90522 *demod = fe->demodulator_priv; - stats = &c->strength; - stats->len = 0; - /* let the connected tuner set RSSI property cache */ - if (fe->ops.tuner_ops.get_rf_strength) { - u16 dummy; + dev_dbg(&demod->i2c->dev, "%s #%d %s %s\n", demod->i2c->name, demod->idx, __func__, demod->type == SYS_ISDBS ? "S" : "T"); + demod->state = TC90522_IDLE; + return fe->ops.tuner_ops.init(fe); +} - fe->ops.tuner_ops.get_rf_strength(fe, &dummy); - } +void tc90522_release(struct dvb_frontend *fe) +{ + struct tc90522 *demod = fe->demodulator_priv; - stats = &c->cnr; - stats->len = 1; - stats->stat[0].scale = FE_SCALE_NOT_AVAILABLE; - cndat = 0; - ret = reg_read(state, 0x8b, val, 3); - if (ret == 0) - cndat = val[0] << 16 | val[1] << 8 | val[2]; - if (cndat != 0) { - u32 p, tmp; - s64 cn; - - /* - * cnr[mdB] = 0.024 P^4 - 1.6 P^3 + 39.8 P^2 + 549.1 P + 3096.5 - * (P = 10log10(5505024/cndat)) - */ - /* cn = cnr << 3 (61.3 fixed point float */ - /* p = 10log10(5505024/cndat) << 24 (8.24 fixed point float)*/ - p = intlog10(5505024) - intlog10(cndat); - p *= 10; - - cn = 24772; - cn += div64_s64(43827LL * p, 10) >> 24; - tmp = p >> 8; - cn += div64_s64(3184LL * tmp * tmp, 10) >> 32; - tmp = p >> 13; - cn -= div64_s64(128LL * tmp * tmp * tmp, 10) >> 33; - tmp = p >> 18; - cn += div64_s64(192LL * tmp * tmp * tmp * tmp, 1000) >> 24; - - stats->stat[0].svalue = cn >> 3; - stats->stat[0].scale = FE_SCALE_DECIBEL; - } + dev_dbg(&demod->i2c->dev, "%s #%d %s\n", demod->i2c->name, demod->idx, __func__); + tc90522_set_powers(demod, TC90522_PWR_OFF); + tc90522_sleep(fe); +} - /* per-layer post viterbi BER (or PER? config dependent?) */ - stats = &c->post_bit_error; - memset(stats, 0, sizeof(*stats)); - stats->len = layers; - ret = reg_read(state, 0x9d, val, 15); - if (ret < 0) - for (i = 0; i < layers; i++) - stats->stat[i].scale = FE_SCALE_NOT_AVAILABLE; - else { - for (i = 0; i < layers; i++) { - stats->stat[i].scale = FE_SCALE_COUNTER; - stats->stat[i].uvalue = val[i * 3] << 16 - | val[i * 3 + 1] << 8 | val[i * 3 + 2]; - } - } - stats = &c->post_bit_count; - memset(stats, 0, sizeof(*stats)); - stats->len = layers; - if (ret < 0) - for (i = 0; i < layers; i++) - stats->stat[i].scale = FE_SCALE_NOT_AVAILABLE; - else { - for (i = 0; i < layers; i++) { - stats->stat[i].scale = FE_SCALE_COUNTER; - stats->stat[i].uvalue = - val[9 + i * 2] << 8 | val[9 + i * 2 + 1]; - stats->stat[i].uvalue *= 204 * 8; - } - } +s64 tc90522_get_cn_raw(struct tc90522 *demod) +{ + u8 buf[3], buflen = demod->type == SYS_ISDBS ? 2 : 3, addr = demod->type == SYS_ISDBS ? 0xbc : 0x8b; + int err = tc90522_read(demod, addr, buf, buflen); - return 0; + return err < 0 ? err : tc90522_n2int(buf, buflen); } -static const struct reg_val reset_sat = { 0x03, 0x01 }; -static const struct reg_val reset_ter = { 0x01, 0x40 }; - -static int tc90522_set_frontend(struct dvb_frontend *fe) +s64 tc90522_get_cn_s(s64 raw) /* @ .0001 dB */ { - struct tc90522_state *state; - int ret; - - state = fe->demodulator_priv; - - if (fe->ops.tuner_ops.set_params) - ret = fe->ops.tuner_ops.set_params(fe); - else - ret = -ENODEV; - if (ret < 0) - goto failed; - - if (fe->ops.delsys[0] == SYS_ISDBS) { - ret = tc90522s_set_tsid(fe); - if (ret < 0) - goto failed; - ret = reg_write(state, &reset_sat, 1); - } else { - ret = tc90522t_set_layers(fe); - if (ret < 0) - goto failed; - ret = reg_write(state, &reset_ter, 1); - } - if (ret < 0) - goto failed; + s64 x, y; + + raw -= 3000; + if (raw < 0) + raw = 0; + x = int_sqrt(raw << 20); + y = 16346ll * x - (143410ll << 16); + y = ((x * y) >> 16) + (502590ll << 16); + y = ((x * y) >> 16) - (889770ll << 16); + y = ((x * y) >> 16) + (895650ll << 16); + y = (588570ll << 16) - ((x * y) >> 16); + return y < 0 ? 0 : y >> 16; +} - return 0; +s64 tc90522_get_cn_t(s64 raw) /* @ .0001 dB */ +{ + s64 x, y; -failed: - dev_warn(&state->tuner_i2c.dev, "(%s) failed. [adap%d-fe%d]\n", - __func__, fe->dvb->num, fe->id); - return ret; + if (!raw) + return 0; + x = (1130911733ll - 10ll * intlog10(raw)) >> 2; + y = (x >> 2) - (x >> 6) + (x >> 8) + (x >> 9) - (x >> 10) + (x >> 11) + (x >> 12) - (16ll << 22); + y = ((x * y) >> 22) + (398ll << 22); + y = ((x * y) >> 22) + (5491ll << 22); + y = ((x * y) >> 22) + (30965ll << 22); + return y >> 22; } -static int tc90522_get_tune_settings(struct dvb_frontend *fe, - struct dvb_frontend_tune_settings *settings) +int tc90522_read_snr(struct dvb_frontend *fe, u16 *cn) /* raw C/N, digitally modulated S/N ratio */ { - if (fe->ops.delsys[0] == SYS_ISDBS) { - settings->min_delay_ms = 250; - settings->step_size = 1000; - settings->max_drift = settings->step_size * 2; - } else { - settings->min_delay_ms = 400; - settings->step_size = 142857; - settings->max_drift = settings->step_size; - } - return 0; + struct tc90522 *demod = fe->demodulator_priv; + s64 err = tc90522_get_cn_raw(demod); + *cn = err < 0 ? 0 : err; + dev_dbg(&demod->i2c->dev, "%s v3 CN %d (%lld dB)\n", demod->i2c->name, (int)*cn, + demod->type == SYS_ISDBS ? (int64_t)tc90522_get_cn_s(*cn) : (int64_t)tc90522_get_cn_t(*cn)); + return err < 0 ? err : 0; } -static int tc90522_set_if_agc(struct dvb_frontend *fe, bool on) +int tc90522_read_status(struct dvb_frontend *fe, fe_status_t *status) { - struct reg_val agc_sat[] = { - { 0x0a, 0x00 }, - { 0x10, 0x30 }, - { 0x11, 0x00 }, - { 0x03, 0x01 }, - }; - struct reg_val agc_ter[] = { - { 0x25, 0x00 }, - { 0x23, 0x4c }, - { 0x01, 0x40 }, - }; - struct tc90522_state *state; - struct reg_val *rv; - int num; - - state = fe->demodulator_priv; - if (fe->ops.delsys[0] == SYS_ISDBS) { - agc_sat[0].val = on ? 0xff : 0x00; - agc_sat[1].val |= 0x80; - agc_sat[1].val |= on ? 0x01 : 0x00; - agc_sat[2].val |= on ? 0x40 : 0x00; - rv = agc_sat; - num = ARRAY_SIZE(agc_sat); - } else { - agc_ter[0].val = on ? 0x40 : 0x00; - agc_ter[1].val |= on ? 0x00 : 0x01; - rv = agc_ter; - num = ARRAY_SIZE(agc_ter); + struct tc90522 *demod = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + s64 err = tc90522_get_cn_raw(demod), + raw = err < 0 ? 0 : err; + + switch (demod->state) { + case TC90522_IDLE: + case TC90522_SET_FREQUENCY: + *status = 0; + break; + + case TC90522_SET_MODULATION: + case TC90522_ABORT: + *status |= FE_HAS_SIGNAL; + break; + + case TC90522_TRACK: + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK; + break; } - return reg_write(state, rv, num); -} -static const struct reg_val sleep_sat = { 0x17, 0x01 }; -static const struct reg_val sleep_ter = { 0x03, 0x90 }; + c->cnr.len = 1; + c->cnr.stat[0].svalue = demod->type == SYS_ISDBS ? tc90522_get_cn_s(raw) : tc90522_get_cn_t(raw); + c->cnr.stat[0].scale = FE_SCALE_DECIBEL; + dev_dbg(&demod->i2c->dev, "%s v5 CN %lld (%lld dB)\n", demod->i2c->name, raw, c->cnr.stat[0].svalue); + return err < 0 ? err : 0; +} -static int tc90522_sleep(struct dvb_frontend *fe) +/**** ISDB-S ****/ +int tc90522_tune_s(struct dvb_frontend *fe, bool re_tune, unsigned int mode_flags, unsigned int *delay, fe_status_t *status) { - struct tc90522_state *state; - int ret; - - state = fe->demodulator_priv; - if (fe->ops.delsys[0] == SYS_ISDBS) - ret = reg_write(state, &sleep_sat, 1); - else { - ret = reg_write(state, &sleep_ter, 1); - if (ret == 0 && fe->ops.set_lna && - fe->dtv_property_cache.lna == LNA_AUTO) { - fe->dtv_property_cache.lna = 0; - ret = fe->ops.set_lna(fe); - fe->dtv_property_cache.lna = LNA_AUTO; - } - } - if (ret < 0) - dev_warn(&state->tuner_i2c.dev, - "(%s) failed. [adap%d-fe%d]\n", - __func__, fe->dvb->num, fe->id); - return ret; -} + struct tc90522 *demod = fe->demodulator_priv; + struct tmcc_s tmcc; + int i, err, + freq = fe->dtv_property_cache.frequency, + tsid = fe->dtv_property_cache.stream_id; + u8 id_s[2]; + + if (re_tune) + demod->state = TC90522_SET_FREQUENCY; + + switch (demod->state) { + case TC90522_IDLE: + *delay = msecs_to_jiffies(2000); + *status = 0; + return 0; -static const struct reg_val wakeup_sat = { 0x17, 0x00 }; -static const struct reg_val wakeup_ter = { 0x03, 0x80 }; + case TC90522_SET_FREQUENCY: + dev_dbg(&demod->i2c->dev, "%s #%d tsid 0x%x freq %d\n", demod->i2c->name, demod->idx, tsid, freq); + err = fe->ops.tuner_ops.set_frequency(fe, freq); + if (err) + return err; + demod->offset = 0; + demod->state = TC90522_SET_MODULATION; + *delay = 0; + *status = FE_HAS_SIGNAL; + return 0; -static int tc90522_init(struct dvb_frontend *fe) -{ - struct tc90522_state *state; - int ret; - - /* - * Because the init sequence is not public, - * the parent device/driver should have init'ed the device before. - * just wake up the device here. - */ - - state = fe->demodulator_priv; - if (fe->ops.delsys[0] == SYS_ISDBS) - ret = reg_write(state, &wakeup_sat, 1); - else { - ret = reg_write(state, &wakeup_ter, 1); - if (ret == 0 && fe->ops.set_lna && - fe->dtv_property_cache.lna == LNA_AUTO) { - fe->dtv_property_cache.lna = 1; - ret = fe->ops.set_lna(fe); - fe->dtv_property_cache.lna = LNA_AUTO; + case TC90522_SET_MODULATION: + for (i = 0; i < 1000; i++) { + err = tc90522_read_tmcc_s(demod, &tmcc); + if (!err) + break; + msleep_interruptible(1); } - } - if (ret < 0) { - dev_warn(&state->tuner_i2c.dev, - "(%s) failed. [adap%d-fe%d]\n", - __func__, fe->dvb->num, fe->id); - return ret; - } - - /* prefer 'all-layers' to 'none' as a default */ - if (fe->dtv_property_cache.isdbt_layer_enabled == 0) - fe->dtv_property_cache.isdbt_layer_enabled = 7; - return tc90522_set_if_agc(fe, true); -} + if (err) { + dev_dbg(&demod->i2c->dev, "%s fail tc_read_tmcc_s err=0x%x\n", demod->i2c->name, err); + demod->state = TC90522_ABORT; + *delay = msecs_to_jiffies(1000); + return err; + } + dev_dbg(&demod->i2c->dev, "%s slots=%d,%d,%d,%d mode=%d,%d,%d,%d tmcc.id=0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x,0x%x\n", + demod->i2c->name, + tmcc.slot[0], tmcc.slot[1], tmcc.slot[2], tmcc.slot[3], + tmcc.mode[0], tmcc.mode[1], tmcc.mode[2], tmcc.mode[3], + tmcc.id[0], tmcc.id[1], tmcc.id[2], tmcc.id[3], + tmcc.id[4], tmcc.id[5], tmcc.id[6], tmcc.id[7]); + for (i = 0; i < ARRAY_SIZE(tmcc.id); i++) { + dev_dbg(&demod->i2c->dev, "%s tsid %x i %d tmcc.id %x\n", demod->i2c->name, tsid, i, tmcc.id[i]); + if (tmcc.id[i] == tsid) + break; + } + if (tsid < ARRAY_SIZE(tmcc.id)) /* treat as slot# */ + i = tsid; + if (i == ARRAY_SIZE(tmcc.id)) { + dev_dbg(&demod->i2c->dev, "%s #%d i%d tsid 0x%x not found\n", demod->i2c->name, demod->idx, i, tsid); + return -EINVAL; + } + demod->offset = i; + dev_dbg(&demod->i2c->dev, "%s #%d found tsid 0x%x on slot %d\n", demod->i2c->name, demod->idx, tsid, i); + + id_s[0] = (tmcc.id[demod->offset] >> 8) & 0xff; + id_s[1] = tmcc.id[demod->offset] & 0xff; + err = tc90522_write_data(fe, 0x8f, id_s, sizeof(id_s)); + if (err) { + dev_dbg(&demod->i2c->dev, "%s fail set_tmcc_s err=%d\n", demod->i2c->name, err); + return err; + } + for (i = 0; i < 1000; i++) { + u16 short_id; + + err = tc90522_read_id_s(demod, &short_id); + if (err) { + dev_dbg(&demod->i2c->dev, "%s fail get_id_s err=%d\n", demod->i2c->name, err); + return err; + } + tsid = short_id; + dev_dbg(&demod->i2c->dev, "%s #%d tsid=0x%x\n", demod->i2c->name, demod->idx, tsid); + if ((tsid & 0xffff) == tmcc.id[demod->offset]) + break; + msleep_interruptible(1); + } + demod->state = TC90522_TRACK; + /* fallthrough */ + case TC90522_TRACK: + *delay = msecs_to_jiffies(2000); + *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK; + return 0; -/* - * tuner I2C adapter functions - */ + case TC90522_ABORT: + *delay = msecs_to_jiffies(2000); + *status = FE_HAS_SIGNAL; + return 0; + } + return -ERANGE; +} -static int -tc90522_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) +int tc90522_read_tuner_s(struct dvb_frontend *fe, u8 *addr, int len) { - struct tc90522_state *state; - struct i2c_msg *new_msgs; - int i, j; - int ret, rd_num; - u8 wbuf[256]; - u8 *p, *bufend; - - if (num <= 0) - return -EINVAL; + struct tc90522 *demod = fe->demodulator_priv; + u8 buf[] = { TC90522_PASSTHROUGH, addr[0] << 1, addr[1], TC90522_PASSTHROUGH, (addr[0] << 1) | 1, 0 }; + struct i2c_msg msg[] = { + { .addr = demod->addr_demod, .flags = 0, .buf = buf, .len = 3, }, + { .addr = demod->addr_demod, .flags = 0, .buf = buf + 3, .len = 2, }, + { .addr = demod->addr_demod, .flags = I2C_M_RD, .buf = buf + 5, .len = 1, }, + }; - rd_num = 0; - for (i = 0; i < num; i++) - if (msgs[i].flags & I2C_M_RD) - rd_num++; - new_msgs = kmalloc(sizeof(*new_msgs) * (num + rd_num), GFP_KERNEL); - if (!new_msgs) - return -ENOMEM; + if (!addr || (len != 2)) + return -EINVAL; + return i2c_transfer(demod->i2c, msg, 3) == 3 ? buf[5] : -EREMOTEIO; +} - state = i2c_get_adapdata(adap); - p = wbuf; - bufend = wbuf + sizeof(wbuf); - for (i = 0, j = 0; i < num; i++, j++) { - new_msgs[j].addr = state->i2c_client->addr; - new_msgs[j].flags = msgs[i].flags; +static struct dvb_frontend_ops tc90522_ops_s = { + .delsys = { SYS_ISDBS }, + .info = { + .name = "TC90522 ISDB-S", + .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_MULTISTREAM | + FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO, + }, + .init = tc90522_wakeup, + .sleep = tc90522_sleep, + .release = tc90522_release, + .write = tc90522_write, + .get_frontend_algo = tc90522_get_frontend_algo, + .read_snr = tc90522_read_snr, + .read_status = tc90522_read_status, + .tune = tc90522_tune_s, + .tuner_ops.calc_regs = tc90522_read_tuner_s, +}; - if (msgs[i].flags & I2C_M_RD) { - new_msgs[j].flags &= ~I2C_M_RD; - if (p + 2 > bufend) - break; - p[0] = TC90522_I2C_THRU_REG; - p[1] = msgs[i].addr << 1 | 0x01; - new_msgs[j].buf = p; - new_msgs[j].len = 2; - p += 2; - j++; - new_msgs[j].addr = state->i2c_client->addr; - new_msgs[j].flags = msgs[i].flags; - new_msgs[j].buf = msgs[i].buf; - new_msgs[j].len = msgs[i].len; - continue; +/**** ISDB-T ****/ +int tc90522_get_tmcc_t(struct tc90522 *demod) +{ + u8 buf; + u16 i = 65535; + bool b = false, retryov, fulock; + + while (i--) { + if (tc90522_read(demod, 0x80, &buf, 1)) + return -EBADMSG; + retryov = buf & 0b10000000 ? true : false; + fulock = buf & 0b00001000 ? true : false; + if (!fulock) { + b = true; + break; } - - if (p + msgs[i].len + 2 > bufend) + if (retryov) break; - p[0] = TC90522_I2C_THRU_REG; - p[1] = msgs[i].addr << 1; - memcpy(p + 2, msgs[i].buf, msgs[i].len); - new_msgs[j].buf = p; - new_msgs[j].len = msgs[i].len + 2; - p += new_msgs[j].len; + msleep_interruptible(1); } - - if (i < num) - ret = -ENOMEM; - else - ret = i2c_transfer(state->i2c_client->adapter, new_msgs, j); - if (ret >= 0 && ret < j) - ret = -EIO; - kfree(new_msgs); - return (ret == j) ? num : ret; + return b ? 0 : -EBADMSG; } -static u32 tc90522_functionality(struct i2c_adapter *adap) +int tc90522_tune_t(struct dvb_frontend *fe, bool re_tune, unsigned int mode_flags, unsigned int *delay, fe_status_t *status) { - return I2C_FUNC_I2C; -} + struct tc90522 *demod = fe->demodulator_priv; + int err, i; -static const struct i2c_algorithm tc90522_tuner_i2c_algo = { - .master_xfer = &tc90522_master_xfer, - .functionality = &tc90522_functionality, -}; + if (re_tune) + demod->state = TC90522_SET_FREQUENCY; + switch (demod->state) { + case TC90522_IDLE: + *delay = msecs_to_jiffies(2000); + *status = 0; + return 0; -/* - * I2C driver functions - */ + case TC90522_SET_FREQUENCY: + if (fe->ops.tuner_ops.set_frequency(fe, fe->dtv_property_cache.frequency)) { + *delay = msecs_to_jiffies(1000); + *status = 0; + return 0; + } + demod->state = TC90522_SET_MODULATION; + *delay = 0; + *status = FE_HAS_SIGNAL; + return 0; -static const struct dvb_frontend_ops tc90522_ops_sat = { - .delsys = { SYS_ISDBS }, - .info = { - .name = "Toshiba TC90522 ISDB-S module", - .frequency_min = 950000, - .frequency_max = 2150000, - .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_AUTO | - FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | - FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO, - }, + case TC90522_SET_MODULATION: + for (i = 0; i < 1000; i++) { + err = tc90522_get_tmcc_t(demod); + if (!err) + break; + msleep_interruptible(2); + } + if (err) { + dev_dbg(&demod->i2c->dev, "%s #%d fail get_tmcc_t err=%d\n", demod->i2c->name, demod->idx, err); + demod->state = TC90522_ABORT; + *delay = msecs_to_jiffies(1000); + return 0; + } + demod->state = TC90522_TRACK; + /* fallthrough */ - .init = tc90522_init, - .sleep = tc90522_sleep, - .set_frontend = tc90522_set_frontend, - .get_tune_settings = tc90522_get_tune_settings, + case TC90522_TRACK: + *delay = msecs_to_jiffies(2000); + *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK; + return 0; - .get_frontend = tc90522s_get_frontend, - .read_status = tc90522s_read_status, -}; + case TC90522_ABORT: + *delay = msecs_to_jiffies(2000); + *status = FE_HAS_SIGNAL; + return 0; + } + return -ERANGE; +} + +int tc90522_read_tuner_t(struct dvb_frontend *fe, u8 *addr, int len) +{ + struct tc90522 *demod = fe->demodulator_priv; + u8 buf[] = { TC90522_PASSTHROUGH, (addr[0] << 1) | 1, 0 }; + struct i2c_msg msg[] = { + { .addr = demod->addr_demod, .flags = 0, .buf = buf, .len = 2, }, + { .addr = demod->addr_demod, .flags = I2C_M_RD, .buf = buf + 2, .len = 1, }, + }; + + if (!addr || (len != 1)) + return -EINVAL; + return i2c_transfer(demod->i2c, msg, 2) == 2 ? buf[2] : -EREMOTEIO; +} -static const struct dvb_frontend_ops tc90522_ops_ter = { +static struct dvb_frontend_ops tc90522_ops_t = { .delsys = { SYS_ISDBT }, .info = { - .name = "Toshiba TC90522 ISDB-T module", - .frequency_min = 470000000, - .frequency_max = 770000000, - .frequency_stepsize = 142857, - .caps = FE_CAN_INVERSION_AUTO | - FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | - FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | - FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | - FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | - FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER | - FE_CAN_HIERARCHY_AUTO, + .name = "TC90522 ISDB-T", + .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO, }, - - .init = tc90522_init, + .init = tc90522_wakeup, .sleep = tc90522_sleep, - .set_frontend = tc90522_set_frontend, - .get_tune_settings = tc90522_get_tune_settings, - - .get_frontend = tc90522t_get_frontend, - .read_status = tc90522t_read_status, + .release = tc90522_release, + .write = tc90522_write, + .get_frontend_algo = tc90522_get_frontend_algo, + .read_snr = tc90522_read_snr, + .read_status = tc90522_read_status, + .tune = tc90522_tune_t, + .tuner_ops.calc_regs = tc90522_read_tuner_t, }; - -static int tc90522_probe(struct i2c_client *client, - const struct i2c_device_id *id) +/**** Common ****/ +int tc90522_remove(struct i2c_client *client) { - struct tc90522_state *state; - struct tc90522_config *cfg; - const struct dvb_frontend_ops *ops; - struct i2c_adapter *adap; - int ret; - - state = kzalloc(sizeof(*state), GFP_KERNEL); - if (!state) - return -ENOMEM; - state->i2c_client = client; - - cfg = client->dev.platform_data; - memcpy(&state->cfg, cfg, sizeof(state->cfg)); - cfg->fe = state->cfg.fe = &state->fe; - ops = id->driver_data == 0 ? &tc90522_ops_sat : &tc90522_ops_ter; - memcpy(&state->fe.ops, ops, sizeof(*ops)); - state->fe.demodulator_priv = state; - - adap = &state->tuner_i2c; - adap->owner = THIS_MODULE; - adap->algo = &tc90522_tuner_i2c_algo; - adap->dev.parent = &client->dev; - strlcpy(adap->name, "tc90522_sub", sizeof(adap->name)); - i2c_set_adapdata(adap, state); - ret = i2c_add_adapter(adap); - if (ret < 0) - goto err; - cfg->tuner_i2c = state->cfg.tuner_i2c = adap; - - i2c_set_clientdata(client, &state->cfg); - dev_info(&client->dev, "Toshiba TC90522 attached.\n"); + dev_dbg(&client->dev, "%s\n", __func__); + kfree(i2c_get_clientdata(client)); return 0; - -err: - kfree(state); - return ret; } -static int tc90522_remove(struct i2c_client *client) +int tc90522_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct tc90522_state *state; + struct tc90522_config *cfg = client->dev.platform_data; + struct tc90522 *demod = kzalloc(sizeof(struct tc90522), GFP_KERNEL); + struct dvb_frontend *fe = &demod->fe; - state = cfg_to_state(i2c_get_clientdata(client)); - i2c_del_adapter(&state->tuner_i2c); - kfree(state); + if (!demod) + return -ENOMEM; + demod->addr_demod = client->addr; + demod->idx = (!(client->addr & 1) << 1) + ((client->addr & 2) >> 1); + demod->i2c = client->adapter; + demod->type = cfg->type; + memcpy(&fe->ops, (demod->type == SYS_ISDBS) ? &tc90522_ops_s : &tc90522_ops_t, sizeof(struct dvb_frontend_ops)); + fe->demodulator_priv = demod; + if (cfg->pwr && (tc90522_set_powers(demod, TC90522_PWR_TUNER_ON) || + i2c_transfer(demod->i2c, NULL, 0) || + tc90522_set_powers(demod, TC90522_PWR_TUNER_ON | TC90522_PWR_AMP_ON))) { + tc90522_release(fe); + return -EIO; + } + cfg->fe = fe; + i2c_set_clientdata(client, demod); return 0; } - -static const struct i2c_device_id tc90522_id[] = { - { TC90522_I2C_DEV_SAT, 0 }, - { TC90522_I2C_DEV_TER, 1 }, - {} +static struct i2c_device_id tc90522_id_table[] = { + { TC90522_DRVNAME, 0 }, + { }, }; -MODULE_DEVICE_TABLE(i2c, tc90522_id); +MODULE_DEVICE_TABLE(i2c, tc90522_id_table); static struct i2c_driver tc90522_driver = { .driver = { - .name = "tc90522", + .owner = THIS_MODULE, + .name = tc90522_id_table->name, }, .probe = tc90522_probe, .remove = tc90522_remove, - .id_table = tc90522_id, + .id_table = tc90522_id_table, }; - module_i2c_driver(tc90522_driver); -MODULE_DESCRIPTION("Toshiba TC90522 frontend"); -MODULE_AUTHOR("Akihiro TSUKADA"); +MODULE_AUTHOR("Budi Rachmanto, AreMa Inc. "); +MODULE_DESCRIPTION("Toshiba TC90522 8PSK(ISDB-S)/OFDM(ISDB-T) PT3 quad demodulator"); MODULE_LICENSE("GPL"); + -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/