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Diffstat (limited to 'drivers/media/dvb/frontends/ves1x93.c')
-rw-r--r--drivers/media/dvb/frontends/ves1x93.c553
1 files changed, 0 insertions, 553 deletions
diff --git a/drivers/media/dvb/frontends/ves1x93.c b/drivers/media/dvb/frontends/ves1x93.c
deleted file mode 100644
index 9c17eacaec24..000000000000
--- a/drivers/media/dvb/frontends/ves1x93.c
+++ /dev/null
@@ -1,553 +0,0 @@
-/*
- Driver for VES1893 and VES1993 QPSK Demodulators
-
- Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
- Copyright (C) 2001 Ronny Strutz <3des@elitedvb.de>
- Copyright (C) 2002 Dennis Noermann <dennis.noermann@noernet.de>
- Copyright (C) 2002-2003 Andreas Oberritter <obi@linuxtv.org>
-
- 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/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-
-#include "dvb_frontend.h"
-#include "ves1x93.h"
-
-
-struct ves1x93_state {
- struct i2c_adapter* i2c;
- /* configuration settings */
- const struct ves1x93_config* config;
- struct dvb_frontend frontend;
-
- /* previous uncorrected block counter */
- fe_spectral_inversion_t inversion;
- u8 *init_1x93_tab;
- u8 *init_1x93_wtab;
- u8 tab_size;
- u8 demod_type;
- u32 frequency;
-};
-
-static int debug;
-#define dprintk if (debug) printk
-
-#define DEMOD_VES1893 0
-#define DEMOD_VES1993 1
-
-static u8 init_1893_tab [] = {
- 0x01, 0xa4, 0x35, 0x80, 0x2a, 0x0b, 0x55, 0xc4,
- 0x09, 0x69, 0x00, 0x86, 0x4c, 0x28, 0x7f, 0x00,
- 0x00, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x80, 0x00, 0x21, 0xb0, 0x14, 0x00, 0xdc, 0x00,
- 0x81, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x55, 0x00, 0x00, 0x7f, 0x00
-};
-
-static u8 init_1993_tab [] = {
- 0x00, 0x9c, 0x35, 0x80, 0x6a, 0x09, 0x72, 0x8c,
- 0x09, 0x6b, 0x00, 0x00, 0x4c, 0x08, 0x00, 0x00,
- 0x00, 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x80, 0x40, 0x21, 0xb0, 0x00, 0x00, 0x00, 0x10,
- 0x81, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x55, 0x03, 0x00, 0x00, 0x00, 0x00, 0x03,
- 0x00, 0x00, 0x0e, 0x80, 0x00
-};
-
-static u8 init_1893_wtab[] =
-{
- 1,1,1,1,1,1,1,1, 1,1,0,0,1,1,0,0,
- 0,1,0,0,0,0,0,0, 1,0,1,1,0,0,0,1,
- 1,1,1,0,0,0,0,0, 0,0,1,1,0,0,0,0,
- 1,1,1,0,1,1
-};
-
-static u8 init_1993_wtab[] =
-{
- 1,1,1,1,1,1,1,1, 1,1,0,0,1,1,0,0,
- 0,1,0,0,0,0,0,0, 1,1,1,1,0,0,0,1,
- 1,1,1,0,0,0,0,0, 0,0,1,1,0,0,0,0,
- 1,1,1,0,1,1,1,1, 1,1,1,1,1
-};
-
-static int ves1x93_writereg (struct ves1x93_state* state, u8 reg, u8 data)
-{
- u8 buf [] = { 0x00, reg, data };
- struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 3 };
- int err;
-
- if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {
- dprintk ("%s: writereg error (err == %i, reg == 0x%02x, data == 0x%02x)\n", __func__, err, reg, data);
- return -EREMOTEIO;
- }
-
- return 0;
-}
-
-static u8 ves1x93_readreg (struct ves1x93_state* state, u8 reg)
-{
- int ret;
- u8 b0 [] = { 0x00, reg };
- u8 b1 [] = { 0 };
- struct i2c_msg msg [] = { { .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 2 },
- { .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 } };
-
- ret = i2c_transfer (state->i2c, msg, 2);
-
- if (ret != 2) return ret;
-
- return b1[0];
-}
-
-static int ves1x93_clr_bit (struct ves1x93_state* state)
-{
- msleep(10);
- ves1x93_writereg (state, 0, state->init_1x93_tab[0] & 0xfe);
- ves1x93_writereg (state, 0, state->init_1x93_tab[0]);
- msleep(50);
- return 0;
-}
-
-static int ves1x93_set_inversion (struct ves1x93_state* state, fe_spectral_inversion_t inversion)
-{
- u8 val;
-
- /*
- * inversion on/off are interchanged because i and q seem to
- * be swapped on the hardware
- */
-
- switch (inversion) {
- case INVERSION_OFF:
- val = 0xc0;
- break;
- case INVERSION_ON:
- val = 0x80;
- break;
- case INVERSION_AUTO:
- val = 0x00;
- break;
- default:
- return -EINVAL;
- }
-
- return ves1x93_writereg (state, 0x0c, (state->init_1x93_tab[0x0c] & 0x3f) | val);
-}
-
-static int ves1x93_set_fec (struct ves1x93_state* state, fe_code_rate_t fec)
-{
- if (fec == FEC_AUTO)
- return ves1x93_writereg (state, 0x0d, 0x08);
- else if (fec < FEC_1_2 || fec > FEC_8_9)
- return -EINVAL;
- else
- return ves1x93_writereg (state, 0x0d, fec - FEC_1_2);
-}
-
-static fe_code_rate_t ves1x93_get_fec (struct ves1x93_state* state)
-{
- return FEC_1_2 + ((ves1x93_readreg (state, 0x0d) >> 4) & 0x7);
-}
-
-static int ves1x93_set_symbolrate (struct ves1x93_state* state, u32 srate)
-{
- u32 BDR;
- u32 ratio;
- u8 ADCONF, FCONF, FNR, AGCR;
- u32 BDRI;
- u32 tmp;
- u32 FIN;
-
- dprintk("%s: srate == %d\n", __func__, (unsigned int) srate);
-
- if (srate > state->config->xin/2)
- srate = state->config->xin/2;
-
- if (srate < 500000)
- srate = 500000;
-
-#define MUL (1UL<<26)
-
- FIN = (state->config->xin + 6000) >> 4;
-
- tmp = srate << 6;
- ratio = tmp / FIN;
-
- tmp = (tmp % FIN) << 8;
- ratio = (ratio << 8) + tmp / FIN;
-
- tmp = (tmp % FIN) << 8;
- ratio = (ratio << 8) + tmp / FIN;
-
- FNR = 0xff;
-
- if (ratio < MUL/3) FNR = 0;
- if (ratio < (MUL*11)/50) FNR = 1;
- if (ratio < MUL/6) FNR = 2;
- if (ratio < MUL/9) FNR = 3;
- if (ratio < MUL/12) FNR = 4;
- if (ratio < (MUL*11)/200) FNR = 5;
- if (ratio < MUL/24) FNR = 6;
- if (ratio < (MUL*27)/1000) FNR = 7;
- if (ratio < MUL/48) FNR = 8;
- if (ratio < (MUL*137)/10000) FNR = 9;
-
- if (FNR == 0xff) {
- ADCONF = 0x89;
- FCONF = 0x80;
- FNR = 0;
- } else {
- ADCONF = 0x81;
- FCONF = 0x88 | (FNR >> 1) | ((FNR & 0x01) << 5);
- /*FCONF = 0x80 | ((FNR & 0x01) << 5) | (((FNR > 1) & 0x03) << 3) | ((FNR >> 1) & 0x07);*/
- }
-
- BDR = (( (ratio << (FNR >> 1)) >> 4) + 1) >> 1;
- BDRI = ( ((FIN << 8) / ((srate << (FNR >> 1)) >> 2)) + 1) >> 1;
-
- dprintk("FNR= %d\n", FNR);
- dprintk("ratio= %08x\n", (unsigned int) ratio);
- dprintk("BDR= %08x\n", (unsigned int) BDR);
- dprintk("BDRI= %02x\n", (unsigned int) BDRI);
-
- if (BDRI > 0xff)
- BDRI = 0xff;
-
- ves1x93_writereg (state, 0x06, 0xff & BDR);
- ves1x93_writereg (state, 0x07, 0xff & (BDR >> 8));
- ves1x93_writereg (state, 0x08, 0x0f & (BDR >> 16));
-
- ves1x93_writereg (state, 0x09, BDRI);
- ves1x93_writereg (state, 0x20, ADCONF);
- ves1x93_writereg (state, 0x21, FCONF);
-
- AGCR = state->init_1x93_tab[0x05];
- if (state->config->invert_pwm)
- AGCR |= 0x20;
-
- if (srate < 6000000)
- AGCR |= 0x80;
- else
- AGCR &= ~0x80;
-
- ves1x93_writereg (state, 0x05, AGCR);
-
- /* ves1993 hates this, will lose lock */
- if (state->demod_type != DEMOD_VES1993)
- ves1x93_clr_bit (state);
-
- return 0;
-}
-
-static int ves1x93_init (struct dvb_frontend* fe)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
- int i;
- int val;
-
- dprintk("%s: init chip\n", __func__);
-
- for (i = 0; i < state->tab_size; i++) {
- if (state->init_1x93_wtab[i]) {
- val = state->init_1x93_tab[i];
-
- if (state->config->invert_pwm && (i == 0x05)) val |= 0x20; /* invert PWM */
- ves1x93_writereg (state, i, val);
- }
- }
-
- return 0;
-}
-
-static int ves1x93_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
-
- switch (voltage) {
- case SEC_VOLTAGE_13:
- return ves1x93_writereg (state, 0x1f, 0x20);
- case SEC_VOLTAGE_18:
- return ves1x93_writereg (state, 0x1f, 0x30);
- case SEC_VOLTAGE_OFF:
- return ves1x93_writereg (state, 0x1f, 0x00);
- default:
- return -EINVAL;
- }
-}
-
-static int ves1x93_read_status(struct dvb_frontend* fe, fe_status_t* status)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
-
- u8 sync = ves1x93_readreg (state, 0x0e);
-
- /*
- * The ves1893 sometimes returns sync values that make no sense,
- * because, e.g., the SIGNAL bit is 0, while some of the higher
- * bits are 1 (and how can there be a CARRIER w/o a SIGNAL?).
- * Tests showed that the VITERBI and SYNC bits are returned
- * reliably, while the SIGNAL and CARRIER bits ar sometimes wrong.
- * If such a case occurs, we read the value again, until we get a
- * valid value.
- */
- int maxtry = 10; /* just for safety - let's not get stuck here */
- while ((sync & 0x03) != 0x03 && (sync & 0x0c) && maxtry--) {
- msleep(10);
- sync = ves1x93_readreg (state, 0x0e);
- }
-
- *status = 0;
-
- if (sync & 1)
- *status |= FE_HAS_SIGNAL;
-
- if (sync & 2)
- *status |= FE_HAS_CARRIER;
-
- if (sync & 4)
- *status |= FE_HAS_VITERBI;
-
- if (sync & 8)
- *status |= FE_HAS_SYNC;
-
- if ((sync & 0x1f) == 0x1f)
- *status |= FE_HAS_LOCK;
-
- return 0;
-}
-
-static int ves1x93_read_ber(struct dvb_frontend* fe, u32* ber)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
-
- *ber = ves1x93_readreg (state, 0x15);
- *ber |= (ves1x93_readreg (state, 0x16) << 8);
- *ber |= ((ves1x93_readreg (state, 0x17) & 0x0F) << 16);
- *ber *= 10;
-
- return 0;
-}
-
-static int ves1x93_read_signal_strength(struct dvb_frontend* fe, u16* strength)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
-
- u8 signal = ~ves1x93_readreg (state, 0x0b);
- *strength = (signal << 8) | signal;
-
- return 0;
-}
-
-static int ves1x93_read_snr(struct dvb_frontend* fe, u16* snr)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
-
- u8 _snr = ~ves1x93_readreg (state, 0x1c);
- *snr = (_snr << 8) | _snr;
-
- return 0;
-}
-
-static int ves1x93_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
-
- *ucblocks = ves1x93_readreg (state, 0x18) & 0x7f;
-
- if (*ucblocks == 0x7f)
- *ucblocks = 0xffffffff; /* counter overflow... */
-
- ves1x93_writereg (state, 0x18, 0x00); /* reset the counter */
- ves1x93_writereg (state, 0x18, 0x80); /* dto. */
-
- return 0;
-}
-
-static int ves1x93_set_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct ves1x93_state* state = fe->demodulator_priv;
-
- 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);
- }
- ves1x93_set_inversion (state, p->inversion);
- ves1x93_set_fec(state, p->fec_inner);
- ves1x93_set_symbolrate(state, p->symbol_rate);
- state->inversion = p->inversion;
- state->frequency = p->frequency;
-
- return 0;
-}
-
-static int ves1x93_get_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct ves1x93_state* state = fe->demodulator_priv;
- int afc;
-
- afc = ((int)((char)(ves1x93_readreg (state, 0x0a) << 1)))/2;
- afc = (afc * (int)(p->symbol_rate/1000/8))/16;
-
- p->frequency = state->frequency - afc;
-
- /*
- * inversion indicator is only valid
- * if auto inversion was used
- */
- if (state->inversion == INVERSION_AUTO)
- p->inversion = (ves1x93_readreg (state, 0x0f) & 2) ?
- INVERSION_OFF : INVERSION_ON;
- p->fec_inner = ves1x93_get_fec(state);
- /* XXX FIXME: timing offset !! */
-
- return 0;
-}
-
-static int ves1x93_sleep(struct dvb_frontend* fe)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
-
- return ves1x93_writereg (state, 0x00, 0x08);
-}
-
-static void ves1x93_release(struct dvb_frontend* fe)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
- kfree(state);
-}
-
-static int ves1x93_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
-{
- struct ves1x93_state* state = fe->demodulator_priv;
-
- if (enable) {
- return ves1x93_writereg(state, 0x00, 0x11);
- } else {
- return ves1x93_writereg(state, 0x00, 0x01);
- }
-}
-
-static struct dvb_frontend_ops ves1x93_ops;
-
-struct dvb_frontend* ves1x93_attach(const struct ves1x93_config* config,
- struct i2c_adapter* i2c)
-{
- struct ves1x93_state* state = NULL;
- u8 identity;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct ves1x93_state), GFP_KERNEL);
- if (state == NULL) goto error;
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
- state->inversion = INVERSION_OFF;
-
- /* check if the demod is there + identify it */
- identity = ves1x93_readreg(state, 0x1e);
- switch (identity) {
- case 0xdc: /* VES1893A rev1 */
- printk("ves1x93: Detected ves1893a rev1\n");
- state->demod_type = DEMOD_VES1893;
- state->init_1x93_tab = init_1893_tab;
- state->init_1x93_wtab = init_1893_wtab;
- state->tab_size = sizeof(init_1893_tab);
- break;
-
- case 0xdd: /* VES1893A rev2 */
- printk("ves1x93: Detected ves1893a rev2\n");
- state->demod_type = DEMOD_VES1893;
- state->init_1x93_tab = init_1893_tab;
- state->init_1x93_wtab = init_1893_wtab;
- state->tab_size = sizeof(init_1893_tab);
- break;
-
- case 0xde: /* VES1993 */
- printk("ves1x93: Detected ves1993\n");
- state->demod_type = DEMOD_VES1993;
- state->init_1x93_tab = init_1993_tab;
- state->init_1x93_wtab = init_1993_wtab;
- state->tab_size = sizeof(init_1993_tab);
- break;
-
- default:
- goto error;
- }
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &ves1x93_ops, sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
- return &state->frontend;
-
-error:
- kfree(state);
- return NULL;
-}
-
-static struct dvb_frontend_ops ves1x93_ops = {
- .delsys = { SYS_DVBS },
- .info = {
- .name = "VLSI VES1x93 DVB-S",
- .frequency_min = 950000,
- .frequency_max = 2150000,
- .frequency_stepsize = 125, /* kHz for QPSK frontends */
- .frequency_tolerance = 29500,
- .symbol_rate_min = 1000000,
- .symbol_rate_max = 45000000,
- /* .symbol_rate_tolerance = ???,*/
- .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
- },
-
- .release = ves1x93_release,
-
- .init = ves1x93_init,
- .sleep = ves1x93_sleep,
- .i2c_gate_ctrl = ves1x93_i2c_gate_ctrl,
-
- .set_frontend = ves1x93_set_frontend,
- .get_frontend = ves1x93_get_frontend,
-
- .read_status = ves1x93_read_status,
- .read_ber = ves1x93_read_ber,
- .read_signal_strength = ves1x93_read_signal_strength,
- .read_snr = ves1x93_read_snr,
- .read_ucblocks = ves1x93_read_ucblocks,
-
- .set_voltage = ves1x93_set_voltage,
-};
-
-module_param(debug, int, 0644);
-
-MODULE_DESCRIPTION("VLSI VES1x93 DVB-S Demodulator driver");
-MODULE_AUTHOR("Ralph Metzler");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(ves1x93_attach);
generated by cgit v1.2.3 (git 2.0.4) at 2024-09-19 10:02:14 +0000