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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 04:13:41 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 04:13:41 +0200
commit9a0bf528b4d66b605f02634236da085595c22101 (patch)
treee9ff008ff15c3ee5add6d41173ee5e61939480dd /drivers/media/dvb/frontends/nxt6000.c
parent[media] dvb: move the dvb core one level up (diff)
downloadlinux-9a0bf528b4d66b605f02634236da085595c22101.tar.xz
linux-9a0bf528b4d66b605f02634236da085595c22101.zip
[media] move the dvb/frontends to drivers/media/dvb-frontends
Raise the DVB frontends one level up, as the intention is to remove the drivers/media/dvb directory. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/nxt6000.c')
-rw-r--r--drivers/media/dvb/frontends/nxt6000.c616
1 files changed, 0 insertions, 616 deletions
diff --git a/drivers/media/dvb/frontends/nxt6000.c b/drivers/media/dvb/frontends/nxt6000.c
deleted file mode 100644
index 90ae6c72c0e3..000000000000
--- a/drivers/media/dvb/frontends/nxt6000.c
+++ /dev/null
@@ -1,616 +0,0 @@
-/*
- NxtWave Communications - NXT6000 demodulator driver
-
- Copyright (C) 2002-2003 Florian Schirmer <jolt@tuxbox.org>
- Copyright (C) 2003 Paul Andreassen <paul@andreassen.com.au>
-
- 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
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-
-#include "dvb_frontend.h"
-#include "nxt6000_priv.h"
-#include "nxt6000.h"
-
-
-
-struct nxt6000_state {
- struct i2c_adapter* i2c;
- /* configuration settings */
- const struct nxt6000_config* config;
- struct dvb_frontend frontend;
-};
-
-static int debug;
-#define dprintk if (debug) printk
-
-static int nxt6000_writereg(struct nxt6000_state* state, u8 reg, u8 data)
-{
- u8 buf[] = { reg, data };
- struct i2c_msg msg = {.addr = state->config->demod_address,.flags = 0,.buf = buf,.len = 2 };
- int ret;
-
- if ((ret = i2c_transfer(state->i2c, &msg, 1)) != 1)
- dprintk("nxt6000: nxt6000_write error (reg: 0x%02X, data: 0x%02X, ret: %d)\n", reg, data, ret);
-
- return (ret != 1) ? -EIO : 0;
-}
-
-static u8 nxt6000_readreg(struct nxt6000_state* state, u8 reg)
-{
- int ret;
- u8 b0[] = { reg };
- u8 b1[] = { 0 };
- struct i2c_msg msgs[] = {
- {.addr = state->config->demod_address,.flags = 0,.buf = b0,.len = 1},
- {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = b1,.len = 1}
- };
-
- ret = i2c_transfer(state->i2c, msgs, 2);
-
- if (ret != 2)
- dprintk("nxt6000: nxt6000_read error (reg: 0x%02X, ret: %d)\n", reg, ret);
-
- return b1[0];
-}
-
-static void nxt6000_reset(struct nxt6000_state* state)
-{
- u8 val;
-
- val = nxt6000_readreg(state, OFDM_COR_CTL);
-
- nxt6000_writereg(state, OFDM_COR_CTL, val & ~COREACT);
- nxt6000_writereg(state, OFDM_COR_CTL, val | COREACT);
-}
-
-static int nxt6000_set_bandwidth(struct nxt6000_state *state, u32 bandwidth)
-{
- u16 nominal_rate;
- int result;
-
- switch (bandwidth) {
- case 6000000:
- nominal_rate = 0x55B7;
- break;
-
- case 7000000:
- nominal_rate = 0x6400;
- break;
-
- case 8000000:
- nominal_rate = 0x7249;
- break;
-
- default:
- return -EINVAL;
- }
-
- if ((result = nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_1, nominal_rate & 0xFF)) < 0)
- return result;
-
- return nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_2, (nominal_rate >> 8) & 0xFF);
-}
-
-static int nxt6000_set_guard_interval(struct nxt6000_state* state, fe_guard_interval_t guard_interval)
-{
- switch (guard_interval) {
-
- case GUARD_INTERVAL_1_32:
- return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x00 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
-
- case GUARD_INTERVAL_1_16:
- return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x01 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
-
- case GUARD_INTERVAL_AUTO:
- case GUARD_INTERVAL_1_8:
- return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x02 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
-
- case GUARD_INTERVAL_1_4:
- return nxt6000_writereg(state, OFDM_COR_MODEGUARD, 0x03 | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x03));
-
- default:
- return -EINVAL;
- }
-}
-
-static int nxt6000_set_inversion(struct nxt6000_state* state, fe_spectral_inversion_t inversion)
-{
- switch (inversion) {
-
- case INVERSION_OFF:
- return nxt6000_writereg(state, OFDM_ITB_CTL, 0x00);
-
- case INVERSION_ON:
- return nxt6000_writereg(state, OFDM_ITB_CTL, ITBINV);
-
- default:
- return -EINVAL;
-
- }
-}
-
-static int nxt6000_set_transmission_mode(struct nxt6000_state* state, fe_transmit_mode_t transmission_mode)
-{
- int result;
-
- switch (transmission_mode) {
-
- case TRANSMISSION_MODE_2K:
- if ((result = nxt6000_writereg(state, EN_DMD_RACQ, 0x00 | (nxt6000_readreg(state, EN_DMD_RACQ) & ~0x03))) < 0)
- return result;
-
- return nxt6000_writereg(state, OFDM_COR_MODEGUARD, (0x00 << 2) | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x04));
-
- case TRANSMISSION_MODE_8K:
- case TRANSMISSION_MODE_AUTO:
- if ((result = nxt6000_writereg(state, EN_DMD_RACQ, 0x02 | (nxt6000_readreg(state, EN_DMD_RACQ) & ~0x03))) < 0)
- return result;
-
- return nxt6000_writereg(state, OFDM_COR_MODEGUARD, (0x01 << 2) | (nxt6000_readreg(state, OFDM_COR_MODEGUARD) & ~0x04));
-
- default:
- return -EINVAL;
-
- }
-}
-
-static void nxt6000_setup(struct dvb_frontend* fe)
-{
- struct nxt6000_state* state = fe->demodulator_priv;
-
- nxt6000_writereg(state, RS_COR_SYNC_PARAM, SYNC_PARAM);
- nxt6000_writereg(state, BER_CTRL, /*(1 << 2) | */ (0x01 << 1) | 0x01);
- nxt6000_writereg(state, VIT_BERTIME_2, 0x00); // BER Timer = 0x000200 * 256 = 131072 bits
- nxt6000_writereg(state, VIT_BERTIME_1, 0x02); //
- nxt6000_writereg(state, VIT_BERTIME_0, 0x00); //
- nxt6000_writereg(state, VIT_COR_INTEN, 0x98); // Enable BER interrupts
- nxt6000_writereg(state, VIT_COR_CTL, 0x82); // Enable BER measurement
- nxt6000_writereg(state, VIT_COR_CTL, VIT_COR_RESYNC | 0x02 );
- nxt6000_writereg(state, OFDM_COR_CTL, (0x01 << 5) | (nxt6000_readreg(state, OFDM_COR_CTL) & 0x0F));
- nxt6000_writereg(state, OFDM_COR_MODEGUARD, FORCEMODE8K | 0x02);
- nxt6000_writereg(state, OFDM_AGC_CTL, AGCLAST | INITIAL_AGC_BW);
- nxt6000_writereg(state, OFDM_ITB_FREQ_1, 0x06);
- nxt6000_writereg(state, OFDM_ITB_FREQ_2, 0x31);
- nxt6000_writereg(state, OFDM_CAS_CTL, (0x01 << 7) | (0x02 << 3) | 0x04);
- nxt6000_writereg(state, CAS_FREQ, 0xBB); /* CHECKME */
- nxt6000_writereg(state, OFDM_SYR_CTL, 1 << 2);
- nxt6000_writereg(state, OFDM_PPM_CTL_1, PPM256);
- nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_1, 0x49);
- nxt6000_writereg(state, OFDM_TRL_NOMINALRATE_2, 0x72);
- nxt6000_writereg(state, ANALOG_CONTROL_0, 1 << 5);
- nxt6000_writereg(state, EN_DMD_RACQ, (1 << 7) | (3 << 4) | 2);
- nxt6000_writereg(state, DIAG_CONFIG, TB_SET);
-
- if (state->config->clock_inversion)
- nxt6000_writereg(state, SUB_DIAG_MODE_SEL, CLKINVERSION);
- else
- nxt6000_writereg(state, SUB_DIAG_MODE_SEL, 0);
-
- nxt6000_writereg(state, TS_FORMAT, 0);
-}
-
-static void nxt6000_dump_status(struct nxt6000_state *state)
-{
- u8 val;
-
-/*
- printk("RS_COR_STAT: 0x%02X\n", nxt6000_readreg(fe, RS_COR_STAT));
- printk("VIT_SYNC_STATUS: 0x%02X\n", nxt6000_readreg(fe, VIT_SYNC_STATUS));
- printk("OFDM_COR_STAT: 0x%02X\n", nxt6000_readreg(fe, OFDM_COR_STAT));
- printk("OFDM_SYR_STAT: 0x%02X\n", nxt6000_readreg(fe, OFDM_SYR_STAT));
- printk("OFDM_TPS_RCVD_1: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RCVD_1));
- printk("OFDM_TPS_RCVD_2: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RCVD_2));
- printk("OFDM_TPS_RCVD_3: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RCVD_3));
- printk("OFDM_TPS_RCVD_4: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RCVD_4));
- printk("OFDM_TPS_RESERVED_1: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RESERVED_1));
- printk("OFDM_TPS_RESERVED_2: 0x%02X\n", nxt6000_readreg(fe, OFDM_TPS_RESERVED_2));
-*/
- printk("NXT6000 status:");
-
- val = nxt6000_readreg(state, RS_COR_STAT);
-
- printk(" DATA DESCR LOCK: %d,", val & 0x01);
- printk(" DATA SYNC LOCK: %d,", (val >> 1) & 0x01);
-
- val = nxt6000_readreg(state, VIT_SYNC_STATUS);
-
- printk(" VITERBI LOCK: %d,", (val >> 7) & 0x01);
-
- switch ((val >> 4) & 0x07) {
-
- case 0x00:
- printk(" VITERBI CODERATE: 1/2,");
- break;
-
- case 0x01:
- printk(" VITERBI CODERATE: 2/3,");
- break;
-
- case 0x02:
- printk(" VITERBI CODERATE: 3/4,");
- break;
-
- case 0x03:
- printk(" VITERBI CODERATE: 5/6,");
- break;
-
- case 0x04:
- printk(" VITERBI CODERATE: 7/8,");
- break;
-
- default:
- printk(" VITERBI CODERATE: Reserved,");
-
- }
-
- val = nxt6000_readreg(state, OFDM_COR_STAT);
-
- printk(" CHCTrack: %d,", (val >> 7) & 0x01);
- printk(" TPSLock: %d,", (val >> 6) & 0x01);
- printk(" SYRLock: %d,", (val >> 5) & 0x01);
- printk(" AGCLock: %d,", (val >> 4) & 0x01);
-
- switch (val & 0x0F) {
-
- case 0x00:
- printk(" CoreState: IDLE,");
- break;
-
- case 0x02:
- printk(" CoreState: WAIT_AGC,");
- break;
-
- case 0x03:
- printk(" CoreState: WAIT_SYR,");
- break;
-
- case 0x04:
- printk(" CoreState: WAIT_PPM,");
- break;
-
- case 0x01:
- printk(" CoreState: WAIT_TRL,");
- break;
-
- case 0x05:
- printk(" CoreState: WAIT_TPS,");
- break;
-
- case 0x06:
- printk(" CoreState: MONITOR_TPS,");
- break;
-
- default:
- printk(" CoreState: Reserved,");
-
- }
-
- val = nxt6000_readreg(state, OFDM_SYR_STAT);
-
- printk(" SYRLock: %d,", (val >> 4) & 0x01);
- printk(" SYRMode: %s,", (val >> 2) & 0x01 ? "8K" : "2K");
-
- switch ((val >> 4) & 0x03) {
-
- case 0x00:
- printk(" SYRGuard: 1/32,");
- break;
-
- case 0x01:
- printk(" SYRGuard: 1/16,");
- break;
-
- case 0x02:
- printk(" SYRGuard: 1/8,");
- break;
-
- case 0x03:
- printk(" SYRGuard: 1/4,");
- break;
- }
-
- val = nxt6000_readreg(state, OFDM_TPS_RCVD_3);
-
- switch ((val >> 4) & 0x07) {
-
- case 0x00:
- printk(" TPSLP: 1/2,");
- break;
-
- case 0x01:
- printk(" TPSLP: 2/3,");
- break;
-
- case 0x02:
- printk(" TPSLP: 3/4,");
- break;
-
- case 0x03:
- printk(" TPSLP: 5/6,");
- break;
-
- case 0x04:
- printk(" TPSLP: 7/8,");
- break;
-
- default:
- printk(" TPSLP: Reserved,");
-
- }
-
- switch (val & 0x07) {
-
- case 0x00:
- printk(" TPSHP: 1/2,");
- break;
-
- case 0x01:
- printk(" TPSHP: 2/3,");
- break;
-
- case 0x02:
- printk(" TPSHP: 3/4,");
- break;
-
- case 0x03:
- printk(" TPSHP: 5/6,");
- break;
-
- case 0x04:
- printk(" TPSHP: 7/8,");
- break;
-
- default:
- printk(" TPSHP: Reserved,");
-
- }
-
- val = nxt6000_readreg(state, OFDM_TPS_RCVD_4);
-
- printk(" TPSMode: %s,", val & 0x01 ? "8K" : "2K");
-
- switch ((val >> 4) & 0x03) {
-
- case 0x00:
- printk(" TPSGuard: 1/32,");
- break;
-
- case 0x01:
- printk(" TPSGuard: 1/16,");
- break;
-
- case 0x02:
- printk(" TPSGuard: 1/8,");
- break;
-
- case 0x03:
- printk(" TPSGuard: 1/4,");
- break;
-
- }
-
- /* Strange magic required to gain access to RF_AGC_STATUS */
- nxt6000_readreg(state, RF_AGC_VAL_1);
- val = nxt6000_readreg(state, RF_AGC_STATUS);
- val = nxt6000_readreg(state, RF_AGC_STATUS);
-
- printk(" RF AGC LOCK: %d,", (val >> 4) & 0x01);
- printk("\n");
-}
-
-static int nxt6000_read_status(struct dvb_frontend* fe, fe_status_t* status)
-{
- u8 core_status;
- struct nxt6000_state* state = fe->demodulator_priv;
-
- *status = 0;
-
- core_status = nxt6000_readreg(state, OFDM_COR_STAT);
-
- if (core_status & AGCLOCKED)
- *status |= FE_HAS_SIGNAL;
-
- if (nxt6000_readreg(state, OFDM_SYR_STAT) & GI14_SYR_LOCK)
- *status |= FE_HAS_CARRIER;
-
- if (nxt6000_readreg(state, VIT_SYNC_STATUS) & VITINSYNC)
- *status |= FE_HAS_VITERBI;
-
- if (nxt6000_readreg(state, RS_COR_STAT) & RSCORESTATUS)
- *status |= FE_HAS_SYNC;
-
- if ((core_status & TPSLOCKED) && (*status == (FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)))
- *status |= FE_HAS_LOCK;
-
- if (debug)
- nxt6000_dump_status(state);
-
- return 0;
-}
-
-static int nxt6000_init(struct dvb_frontend* fe)
-{
- struct nxt6000_state* state = fe->demodulator_priv;
-
- nxt6000_reset(state);
- nxt6000_setup(fe);
-
- return 0;
-}
-
-static int nxt6000_set_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct nxt6000_state* state = fe->demodulator_priv;
- int result;
-
- if (fe->ops.tuner_ops.set_params) {
- fe->ops.tuner_ops.set_params(fe);
- if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
- }
-
- result = nxt6000_set_bandwidth(state, p->bandwidth_hz);
- if (result < 0)
- return result;
-
- result = nxt6000_set_guard_interval(state, p->guard_interval);
- if (result < 0)
- return result;
-
- result = nxt6000_set_transmission_mode(state, p->transmission_mode);
- if (result < 0)
- return result;
-
- result = nxt6000_set_inversion(state, p->inversion);
- if (result < 0)
- return result;
-
- msleep(500);
- return 0;
-}
-
-static void nxt6000_release(struct dvb_frontend* fe)
-{
- struct nxt6000_state* state = fe->demodulator_priv;
- kfree(state);
-}
-
-static int nxt6000_read_snr(struct dvb_frontend* fe, u16* snr)
-{
- struct nxt6000_state* state = fe->demodulator_priv;
-
- *snr = nxt6000_readreg( state, OFDM_CHC_SNR) / 8;
-
- return 0;
-}
-
-static int nxt6000_read_ber(struct dvb_frontend* fe, u32* ber)
-{
- struct nxt6000_state* state = fe->demodulator_priv;
-
- nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18 );
-
- *ber = (nxt6000_readreg( state, VIT_BER_1 ) << 8 ) |
- nxt6000_readreg( state, VIT_BER_0 );
-
- nxt6000_writereg( state, VIT_COR_INTSTAT, 0x18); // Clear BER Done interrupts
-
- return 0;
-}
-
-static int nxt6000_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
-{
- struct nxt6000_state* state = fe->demodulator_priv;
-
- *signal_strength = (short) (511 -
- (nxt6000_readreg(state, AGC_GAIN_1) +
- ((nxt6000_readreg(state, AGC_GAIN_2) & 0x03) << 8)));
-
- return 0;
-}
-
-static int nxt6000_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
-{
- tune->min_delay_ms = 500;
- return 0;
-}
-
-static int nxt6000_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
-{
- struct nxt6000_state* state = fe->demodulator_priv;
-
- if (enable) {
- return nxt6000_writereg(state, ENABLE_TUNER_IIC, 0x01);
- } else {
- return nxt6000_writereg(state, ENABLE_TUNER_IIC, 0x00);
- }
-}
-
-static struct dvb_frontend_ops nxt6000_ops;
-
-struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
- struct i2c_adapter* i2c)
-{
- struct nxt6000_state* state = NULL;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct nxt6000_state), GFP_KERNEL);
- if (state == NULL) goto error;
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
-
- /* check if the demod is there */
- if (nxt6000_readreg(state, OFDM_MSC_REV) != NXT6000ASICDEVICE) goto error;
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &nxt6000_ops, sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
- return &state->frontend;
-
-error:
- kfree(state);
- return NULL;
-}
-
-static struct dvb_frontend_ops nxt6000_ops = {
- .delsys = { SYS_DVBT },
- .info = {
- .name = "NxtWave NXT6000 DVB-T",
- .frequency_min = 0,
- .frequency_max = 863250000,
- .frequency_stepsize = 62500,
- /*.frequency_tolerance = *//* FIXME: 12% of SR */
- .symbol_rate_min = 0, /* FIXME */
- .symbol_rate_max = 9360000, /* FIXME */
- .symbol_rate_tolerance = 4000,
- .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
- FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
- FE_CAN_FEC_7_8 | FE_CAN_FEC_8_9 | FE_CAN_FEC_AUTO |
- FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
- FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
- FE_CAN_HIERARCHY_AUTO,
- },
-
- .release = nxt6000_release,
-
- .init = nxt6000_init,
- .i2c_gate_ctrl = nxt6000_i2c_gate_ctrl,
-
- .get_tune_settings = nxt6000_fe_get_tune_settings,
-
- .set_frontend = nxt6000_set_frontend,
-
- .read_status = nxt6000_read_status,
- .read_ber = nxt6000_read_ber,
- .read_signal_strength = nxt6000_read_signal_strength,
- .read_snr = nxt6000_read_snr,
-};
-
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
-
-MODULE_DESCRIPTION("NxtWave NXT6000 DVB-T demodulator driver");
-MODULE_AUTHOR("Florian Schirmer");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(nxt6000_attach);