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Diffstat (limited to 'drivers/media/dvb/frontends/tda10021.c')
-rw-r--r--drivers/media/dvb/frontends/tda10021.c489
1 files changed, 0 insertions, 489 deletions
diff --git a/drivers/media/dvb/frontends/tda10021.c b/drivers/media/dvb/frontends/tda10021.c
deleted file mode 100644
index 6ca533ea0f0..00000000000
--- a/drivers/media/dvb/frontends/tda10021.c
+++ /dev/null
@@ -1,489 +0,0 @@
-/*
- TDA10021 - Single Chip Cable Channel Receiver driver module
- used on the Siemens DVB-C cards
-
- Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
- Copyright (C) 2004 Markus Schulz <msc@antzsystem.de>
- Support for TDA10021
-
- 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/delay.h>
-#include <linux/errno.h>
-#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 "tda1002x.h"
-
-
-struct tda10021_state {
- struct i2c_adapter* i2c;
- /* configuration settings */
- const struct tda1002x_config* config;
- struct dvb_frontend frontend;
-
- u8 pwm;
- u8 reg0;
-};
-
-
-#if 0
-#define dprintk(x...) printk(x)
-#else
-#define dprintk(x...)
-#endif
-
-static int verbose;
-
-#define XIN 57840000UL
-
-#define FIN (XIN >> 4)
-
-static int tda10021_inittab_size = 0x40;
-static u8 tda10021_inittab[0x40]=
-{
- 0x73, 0x6a, 0x23, 0x0a, 0x02, 0x37, 0x77, 0x1a,
- 0x37, 0x6a, 0x17, 0x8a, 0x1e, 0x86, 0x43, 0x40,
- 0xb8, 0x3f, 0xa1, 0x00, 0xcd, 0x01, 0x00, 0xff,
- 0x11, 0x00, 0x7c, 0x31, 0x30, 0x20, 0x00, 0x00,
- 0x02, 0x00, 0x00, 0x7d, 0x00, 0x00, 0x00, 0x00,
- 0x07, 0x00, 0x33, 0x11, 0x0d, 0x95, 0x08, 0x58,
- 0x00, 0x00, 0x80, 0x00, 0x80, 0xff, 0x00, 0x00,
- 0x04, 0x2d, 0x2f, 0xff, 0x00, 0x00, 0x00, 0x00,
-};
-
-static int _tda10021_writereg (struct tda10021_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;
-
- ret = i2c_transfer (state->i2c, &msg, 1);
- if (ret != 1)
- printk("DVB: TDA10021(%d): %s, writereg error "
- "(reg == 0x%02x, val == 0x%02x, ret == %i)\n",
- state->frontend.dvb->num, __func__, reg, data, ret);
-
- msleep(10);
- return (ret != 1) ? -EREMOTEIO : 0;
-}
-
-static u8 tda10021_readreg (struct tda10021_state* state, u8 reg)
-{
- u8 b0 [] = { reg };
- u8 b1 [] = { 0 };
- struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
- { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
- int ret;
-
- ret = i2c_transfer (state->i2c, msg, 2);
- // Don't print an error message if the id is read.
- if (ret != 2 && reg != 0x1a)
- printk("DVB: TDA10021: %s: readreg error (ret == %i)\n",
- __func__, ret);
- return b1[0];
-}
-
-//get access to tuner
-static int lock_tuner(struct tda10021_state* state)
-{
- u8 buf[2] = { 0x0f, tda10021_inittab[0x0f] | 0x80 };
- struct i2c_msg msg = {.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2};
-
- if(i2c_transfer(state->i2c, &msg, 1) != 1)
- {
- printk("tda10021: lock tuner fails\n");
- return -EREMOTEIO;
- }
- return 0;
-}
-
-//release access from tuner
-static int unlock_tuner(struct tda10021_state* state)
-{
- u8 buf[2] = { 0x0f, tda10021_inittab[0x0f] & 0x7f };
- struct i2c_msg msg_post={.addr=state->config->demod_address, .flags=0, .buf=buf, .len=2};
-
- if(i2c_transfer(state->i2c, &msg_post, 1) != 1)
- {
- printk("tda10021: unlock tuner fails\n");
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int tda10021_setup_reg0 (struct tda10021_state* state, u8 reg0,
- fe_spectral_inversion_t inversion)
-{
- reg0 |= state->reg0 & 0x63;
-
- if ((INVERSION_ON == inversion) ^ (state->config->invert == 0))
- reg0 &= ~0x20;
- else
- reg0 |= 0x20;
-
- _tda10021_writereg (state, 0x00, reg0 & 0xfe);
- _tda10021_writereg (state, 0x00, reg0 | 0x01);
-
- state->reg0 = reg0;
- return 0;
-}
-
-static int tda10021_set_symbolrate (struct tda10021_state* state, u32 symbolrate)
-{
- s32 BDR;
- s32 BDRI;
- s16 SFIL=0;
- u16 NDEC = 0;
- u32 tmp, ratio;
-
- if (symbolrate > XIN/2)
- symbolrate = XIN/2;
- if (symbolrate < 500000)
- symbolrate = 500000;
-
- if (symbolrate < XIN/16) NDEC = 1;
- if (symbolrate < XIN/32) NDEC = 2;
- if (symbolrate < XIN/64) NDEC = 3;
-
- if (symbolrate < (u32)(XIN/12.3)) SFIL = 1;
- if (symbolrate < (u32)(XIN/16)) SFIL = 0;
- if (symbolrate < (u32)(XIN/24.6)) SFIL = 1;
- if (symbolrate < (u32)(XIN/32)) SFIL = 0;
- if (symbolrate < (u32)(XIN/49.2)) SFIL = 1;
- if (symbolrate < (u32)(XIN/64)) SFIL = 0;
- if (symbolrate < (u32)(XIN/98.4)) SFIL = 1;
-
- symbolrate <<= NDEC;
- ratio = (symbolrate << 4) / FIN;
- tmp = ((symbolrate << 4) % FIN) << 8;
- ratio = (ratio << 8) + tmp / FIN;
- tmp = (tmp % FIN) << 8;
- ratio = (ratio << 8) + DIV_ROUND_CLOSEST(tmp, FIN);
-
- BDR = ratio;
- BDRI = (((XIN << 5) / symbolrate) + 1) / 2;
-
- if (BDRI > 0xFF)
- BDRI = 0xFF;
-
- SFIL = (SFIL << 4) | tda10021_inittab[0x0E];
-
- NDEC = (NDEC << 6) | tda10021_inittab[0x03];
-
- _tda10021_writereg (state, 0x03, NDEC);
- _tda10021_writereg (state, 0x0a, BDR&0xff);
- _tda10021_writereg (state, 0x0b, (BDR>> 8)&0xff);
- _tda10021_writereg (state, 0x0c, (BDR>>16)&0x3f);
-
- _tda10021_writereg (state, 0x0d, BDRI);
- _tda10021_writereg (state, 0x0e, SFIL);
-
- return 0;
-}
-
-static int tda10021_init (struct dvb_frontend *fe)
-{
- struct tda10021_state* state = fe->demodulator_priv;
- int i;
-
- dprintk("DVB: TDA10021(%d): init chip\n", fe->adapter->num);
-
- //_tda10021_writereg (fe, 0, 0);
-
- for (i=0; i<tda10021_inittab_size; i++)
- _tda10021_writereg (state, i, tda10021_inittab[i]);
-
- _tda10021_writereg (state, 0x34, state->pwm);
-
- //Comment by markus
- //0x2A[3-0] == PDIV -> P multiplaying factor (P=PDIV+1)(default 0)
- //0x2A[4] == BYPPLL -> Power down mode (default 1)
- //0x2A[5] == LCK -> PLL Lock Flag
- //0x2A[6] == POLAXIN -> Polarity of the input reference clock (default 0)
-
- //Activate PLL
- _tda10021_writereg(state, 0x2a, tda10021_inittab[0x2a] & 0xef);
- return 0;
-}
-
-static int tda10021_set_parameters (struct dvb_frontend *fe,
- struct dvb_frontend_parameters *p)
-{
- struct tda10021_state* state = fe->demodulator_priv;
-
- //table for QAM4-QAM256 ready QAM4 QAM16 QAM32 QAM64 QAM128 QAM256
- //CONF
- static const u8 reg0x00 [] = { 0x14, 0x00, 0x04, 0x08, 0x0c, 0x10 };
- //AGCREF value
- static const u8 reg0x01 [] = { 0x78, 0x8c, 0x8c, 0x6a, 0x78, 0x5c };
- //LTHR value
- static const u8 reg0x05 [] = { 0x78, 0x87, 0x64, 0x46, 0x36, 0x26 };
- //MSETH
- static const u8 reg0x08 [] = { 0x8c, 0xa2, 0x74, 0x43, 0x34, 0x23 };
- //AREF
- static const u8 reg0x09 [] = { 0x96, 0x91, 0x96, 0x6a, 0x7e, 0x6b };
-
- int qam = p->u.qam.modulation;
-
- if (qam < 0 || qam > 5)
- return -EINVAL;
-
- if (p->inversion != INVERSION_ON && p->inversion != INVERSION_OFF)
- return -EINVAL;
-
- //printk("tda10021: set frequency to %d qam=%d symrate=%d\n", p->frequency,qam,p->u.qam.symbol_rate);
-
- if (fe->ops.tuner_ops.set_params) {
- fe->ops.tuner_ops.set_params(fe, p);
- if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
- }
-
- tda10021_set_symbolrate (state, p->u.qam.symbol_rate);
- _tda10021_writereg (state, 0x34, state->pwm);
-
- _tda10021_writereg (state, 0x01, reg0x01[qam]);
- _tda10021_writereg (state, 0x05, reg0x05[qam]);
- _tda10021_writereg (state, 0x08, reg0x08[qam]);
- _tda10021_writereg (state, 0x09, reg0x09[qam]);
-
- tda10021_setup_reg0 (state, reg0x00[qam], p->inversion);
-
- return 0;
-}
-
-static int tda10021_read_status(struct dvb_frontend* fe, fe_status_t* status)
-{
- struct tda10021_state* state = fe->demodulator_priv;
- int sync;
-
- *status = 0;
- //0x11[0] == EQALGO -> Equalizer algorithms state
- //0x11[1] == CARLOCK -> Carrier locked
- //0x11[2] == FSYNC -> Frame synchronisation
- //0x11[3] == FEL -> Front End locked
- //0x11[6] == NODVB -> DVB Mode Information
- sync = tda10021_readreg (state, 0x11);
-
- if (sync & 2)
- *status |= FE_HAS_SIGNAL|FE_HAS_CARRIER;
-
- if (sync & 4)
- *status |= FE_HAS_SYNC|FE_HAS_VITERBI;
-
- if (sync & 8)
- *status |= FE_HAS_LOCK;
-
- return 0;
-}
-
-static int tda10021_read_ber(struct dvb_frontend* fe, u32* ber)
-{
- struct tda10021_state* state = fe->demodulator_priv;
-
- u32 _ber = tda10021_readreg(state, 0x14) |
- (tda10021_readreg(state, 0x15) << 8) |
- ((tda10021_readreg(state, 0x16) & 0x0f) << 16);
- _tda10021_writereg(state, 0x10, (tda10021_readreg(state, 0x10) & ~0xc0)
- | (tda10021_inittab[0x10] & 0xc0));
- *ber = 10 * _ber;
-
- return 0;
-}
-
-static int tda10021_read_signal_strength(struct dvb_frontend* fe, u16* strength)
-{
- struct tda10021_state* state = fe->demodulator_priv;
-
- u8 config = tda10021_readreg(state, 0x02);
- u8 gain = tda10021_readreg(state, 0x17);
- if (config & 0x02)
- /* the agc value is inverted */
- gain = ~gain;
- *strength = (gain << 8) | gain;
-
- return 0;
-}
-
-static int tda10021_read_snr(struct dvb_frontend* fe, u16* snr)
-{
- struct tda10021_state* state = fe->demodulator_priv;
-
- u8 quality = ~tda10021_readreg(state, 0x18);
- *snr = (quality << 8) | quality;
-
- return 0;
-}
-
-static int tda10021_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
-{
- struct tda10021_state* state = fe->demodulator_priv;
-
- *ucblocks = tda10021_readreg (state, 0x13) & 0x7f;
- if (*ucblocks == 0x7f)
- *ucblocks = 0xffffffff;
-
- /* reset uncorrected block counter */
- _tda10021_writereg (state, 0x10, tda10021_inittab[0x10] & 0xdf);
- _tda10021_writereg (state, 0x10, tda10021_inittab[0x10]);
-
- return 0;
-}
-
-static int tda10021_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
-{
- struct tda10021_state* state = fe->demodulator_priv;
- int sync;
- s8 afc = 0;
-
- sync = tda10021_readreg(state, 0x11);
- afc = tda10021_readreg(state, 0x19);
- if (verbose) {
- /* AFC only valid when carrier has been recovered */
- printk(sync & 2 ? "DVB: TDA10021(%d): AFC (%d) %dHz\n" :
- "DVB: TDA10021(%d): [AFC (%d) %dHz]\n",
- state->frontend.dvb->num, afc,
- -((s32)p->u.qam.symbol_rate * afc) >> 10);
- }
-
- p->inversion = ((state->reg0 & 0x20) == 0x20) ^ (state->config->invert != 0) ? INVERSION_ON : INVERSION_OFF;
- p->u.qam.modulation = ((state->reg0 >> 2) & 7) + QAM_16;
-
- p->u.qam.fec_inner = FEC_NONE;
- p->frequency = ((p->frequency + 31250) / 62500) * 62500;
-
- if (sync & 2)
- p->frequency -= ((s32)p->u.qam.symbol_rate * afc) >> 10;
-
- return 0;
-}
-
-static int tda10021_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
-{
- struct tda10021_state* state = fe->demodulator_priv;
-
- if (enable) {
- lock_tuner(state);
- } else {
- unlock_tuner(state);
- }
- return 0;
-}
-
-static int tda10021_sleep(struct dvb_frontend* fe)
-{
- struct tda10021_state* state = fe->demodulator_priv;
-
- _tda10021_writereg (state, 0x1b, 0x02); /* pdown ADC */
- _tda10021_writereg (state, 0x00, 0x80); /* standby */
-
- return 0;
-}
-
-static void tda10021_release(struct dvb_frontend* fe)
-{
- struct tda10021_state* state = fe->demodulator_priv;
- kfree(state);
-}
-
-static struct dvb_frontend_ops tda10021_ops;
-
-struct dvb_frontend* tda10021_attach(const struct tda1002x_config* config,
- struct i2c_adapter* i2c,
- u8 pwm)
-{
- struct tda10021_state* state = NULL;
- u8 id;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct tda10021_state), GFP_KERNEL);
- if (state == NULL) goto error;
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
- state->pwm = pwm;
- state->reg0 = tda10021_inittab[0];
-
- /* check if the demod is there */
- id = tda10021_readreg(state, 0x1a);
- if ((id & 0xf0) != 0x70) goto error;
-
- /* Don't claim TDA10023 */
- if (id == 0x7d)
- goto error;
-
- printk("TDA10021: i2c-addr = 0x%02x, id = 0x%02x\n",
- state->config->demod_address, id);
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &tda10021_ops, sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
- return &state->frontend;
-
-error:
- kfree(state);
- return NULL;
-}
-
-static struct dvb_frontend_ops tda10021_ops = {
-
- .info = {
- .name = "Philips TDA10021 DVB-C",
- .type = FE_QAM,
- .frequency_stepsize = 62500,
- .frequency_min = 47000000,
- .frequency_max = 862000000,
- .symbol_rate_min = (XIN/2)/64, /* SACLK/64 == (XIN/2)/64 */
- .symbol_rate_max = (XIN/2)/4, /* SACLK/4 */
- #if 0
- .frequency_tolerance = ???,
- .symbol_rate_tolerance = ???, /* ppm */ /* == 8% (spec p. 5) */
- #endif
- .caps = 0x400 | //FE_CAN_QAM_4
- FE_CAN_QAM_16 | FE_CAN_QAM_32 | FE_CAN_QAM_64 |
- FE_CAN_QAM_128 | FE_CAN_QAM_256 |
- FE_CAN_FEC_AUTO
- },
-
- .release = tda10021_release,
-
- .init = tda10021_init,
- .sleep = tda10021_sleep,
- .i2c_gate_ctrl = tda10021_i2c_gate_ctrl,
-
- .set_frontend = tda10021_set_parameters,
- .get_frontend = tda10021_get_frontend,
-
- .read_status = tda10021_read_status,
- .read_ber = tda10021_read_ber,
- .read_signal_strength = tda10021_read_signal_strength,
- .read_snr = tda10021_read_snr,
- .read_ucblocks = tda10021_read_ucblocks,
-};
-
-module_param(verbose, int, 0644);
-MODULE_PARM_DESC(verbose, "print AFC offset after tuning for debugging the PWM setting");
-
-MODULE_DESCRIPTION("Philips TDA10021 DVB-C demodulator driver");
-MODULE_AUTHOR("Ralph Metzler, Holger Waechtler, Markus Schulz");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(tda10021_attach);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-07 13:16:10 +0000