diff options
Diffstat (limited to 'drivers/media/dvb/frontends/cx24123.c')
| -rw-r--r-- | drivers/media/dvb/frontends/cx24123.c | 889 |
1 files changed, 0 insertions, 889 deletions
diff --git a/drivers/media/dvb/frontends/cx24123.c b/drivers/media/dvb/frontends/cx24123.c deleted file mode 100644 index d661c6f9cbe..00000000000 --- a/drivers/media/dvb/frontends/cx24123.c +++ /dev/null @@ -1,889 +0,0 @@ -/* - Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver - - Copyright (C) 2005 Steven Toth <stoth@hauppauge.com> - - Support for KWorld DVB-S 100 by Vadim Catana <skystar@moldova.cc> - - 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/slab.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/init.h> - -#include "dvb_frontend.h" -#include "cx24123.h" - -static int debug; -#define dprintk(args...) \ - do { \ - if (debug) printk (KERN_DEBUG "cx24123: " args); \ - } while (0) - -struct cx24123_state -{ - struct i2c_adapter* i2c; - struct dvb_frontend_ops ops; - const struct cx24123_config* config; - - struct dvb_frontend frontend; - - u32 lastber; - u16 snr; - u8 lnbreg; - - /* Some PLL specifics for tuning */ - u32 VCAarg; - u32 VGAarg; - u32 bandselectarg; - u32 pllarg; - - /* The Demod/Tuner can't easily provide these, we cache them */ - u32 currentfreq; - u32 currentsymbolrate; -}; - -/* Various tuner defaults need to be established for a given symbol rate Sps */ -static struct -{ - u32 symbolrate_low; - u32 symbolrate_high; - u32 VCAslope; - u32 VCAoffset; - u32 VGA1offset; - u32 VGA2offset; - u32 VCAprogdata; - u32 VGAprogdata; -} cx24123_AGC_vals[] = -{ - { - .symbolrate_low = 1000000, - .symbolrate_high = 4999999, - .VCAslope = 0x07, - .VCAoffset = 0x0f, - .VGA1offset = 0x1f8, - .VGA2offset = 0x1f8, - .VGAprogdata = (2 << 18) | (0x1f8 << 9) | 0x1f8, - .VCAprogdata = (4 << 18) | (0x07 << 9) | 0x07, - }, - { - .symbolrate_low = 5000000, - .symbolrate_high = 14999999, - .VCAslope = 0x1f, - .VCAoffset = 0x1f, - .VGA1offset = 0x1e0, - .VGA2offset = 0x180, - .VGAprogdata = (2 << 18) | (0x180 << 9) | 0x1e0, - .VCAprogdata = (4 << 18) | (0x07 << 9) | 0x1f, - }, - { - .symbolrate_low = 15000000, - .symbolrate_high = 45000000, - .VCAslope = 0x3f, - .VCAoffset = 0x3f, - .VGA1offset = 0x180, - .VGA2offset = 0x100, - .VGAprogdata = (2 << 18) | (0x100 << 9) | 0x180, - .VCAprogdata = (4 << 18) | (0x07 << 9) | 0x3f, - }, -}; - -/* - * Various tuner defaults need to be established for a given frequency kHz. - * fixme: The bounds on the bands do not match the doc in real life. - * fixme: Some of them have been moved, other might need adjustment. - */ -static struct -{ - u32 freq_low; - u32 freq_high; - u32 bandselect; - u32 VCOdivider; - u32 VCOnumber; - u32 progdata; -} cx24123_bandselect_vals[] = -{ - { - .freq_low = 950000, - .freq_high = 1018999, - .bandselect = 0x40, - .VCOdivider = 4, - .VCOnumber = 7, - .progdata = (0 << 18) | (0 << 9) | 0x40, - }, - { - .freq_low = 1019000, - .freq_high = 1074999, - .bandselect = 0x80, - .VCOdivider = 4, - .VCOnumber = 8, - .progdata = (0 << 18) | (0 << 9) | 0x80, - }, - { - .freq_low = 1075000, - .freq_high = 1227999, - .bandselect = 0x01, - .VCOdivider = 2, - .VCOnumber = 1, - .progdata = (0 << 18) | (1 << 9) | 0x01, - }, - { - .freq_low = 1228000, - .freq_high = 1349999, - .bandselect = 0x02, - .VCOdivider = 2, - .VCOnumber = 2, - .progdata = (0 << 18) | (1 << 9) | 0x02, - }, - { - .freq_low = 1350000, - .freq_high = 1481999, - .bandselect = 0x04, - .VCOdivider = 2, - .VCOnumber = 3, - .progdata = (0 << 18) | (1 << 9) | 0x04, - }, - { - .freq_low = 1482000, - .freq_high = 1595999, - .bandselect = 0x08, - .VCOdivider = 2, - .VCOnumber = 4, - .progdata = (0 << 18) | (1 << 9) | 0x08, - }, - { - .freq_low = 1596000, - .freq_high = 1717999, - .bandselect = 0x10, - .VCOdivider = 2, - .VCOnumber = 5, - .progdata = (0 << 18) | (1 << 9) | 0x10, - }, - { - .freq_low = 1718000, - .freq_high = 1855999, - .bandselect = 0x20, - .VCOdivider = 2, - .VCOnumber = 6, - .progdata = (0 << 18) | (1 << 9) | 0x20, - }, - { - .freq_low = 1856000, - .freq_high = 2035999, - .bandselect = 0x40, - .VCOdivider = 2, - .VCOnumber = 7, - .progdata = (0 << 18) | (1 << 9) | 0x40, - }, - { - .freq_low = 2036000, - .freq_high = 2149999, - .bandselect = 0x80, - .VCOdivider = 2, - .VCOnumber = 8, - .progdata = (0 << 18) | (1 << 9) | 0x80, - }, -}; - -static struct { - u8 reg; - u8 data; -} cx24123_regdata[] = -{ - {0x00, 0x03}, /* Reset system */ - {0x00, 0x00}, /* Clear reset */ - {0x01, 0x3b}, /* Apply sensible defaults, from an i2c sniffer */ - {0x03, 0x07}, - {0x04, 0x10}, - {0x05, 0x04}, - {0x06, 0x31}, - {0x0d, 0x02}, - {0x0e, 0x03}, - {0x0f, 0xfe}, - {0x10, 0x01}, - {0x14, 0x01}, - {0x15, 0x98}, - {0x16, 0x00}, - {0x17, 0x01}, - {0x1b, 0x05}, - {0x1c, 0x80}, - {0x1d, 0x00}, - {0x1e, 0x00}, - {0x20, 0x41}, - {0x21, 0x15}, - {0x27, 0x14}, - {0x28, 0x46}, - {0x29, 0x00}, - {0x2a, 0xb0}, - {0x2b, 0x73}, - {0x2c, 0x00}, - {0x2d, 0x00}, - {0x2e, 0x00}, - {0x2f, 0x00}, - {0x30, 0x00}, - {0x31, 0x00}, - {0x32, 0x8c}, - {0x33, 0x00}, - {0x34, 0x00}, - {0x35, 0x03}, - {0x36, 0x02}, - {0x37, 0x3a}, - {0x3a, 0x00}, /* Enable AGC accumulator */ - {0x44, 0x00}, - {0x45, 0x00}, - {0x46, 0x05}, - {0x56, 0x41}, - {0x57, 0xff}, - {0x67, 0x83}, -}; - -static int cx24123_writereg(struct cx24123_state* state, int reg, int data) -{ - u8 buf[] = { reg, data }; - struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 }; - int err; - - if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { - printk("%s: writereg error(err == %i, reg == 0x%02x," - " data == 0x%02x)\n", __FUNCTION__, err, reg, data); - return -EREMOTEIO; - } - - return 0; -} - -static int cx24123_writelnbreg(struct cx24123_state* state, int reg, int data) -{ - u8 buf[] = { reg, data }; - /* fixme: put the intersil addr int the config */ - struct i2c_msg msg = { .addr = 0x08, .flags = 0, .buf = buf, .len = 2 }; - int err; - - if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { - printk("%s: writelnbreg error (err == %i, reg == 0x%02x," - " data == 0x%02x)\n", __FUNCTION__, err, reg, data); - return -EREMOTEIO; - } - - /* cache the write, no way to read back */ - state->lnbreg = data; - - return 0; -} - -static int cx24123_readreg(struct cx24123_state* state, u8 reg) -{ - int ret; - 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 } - }; - - ret = i2c_transfer(state->i2c, msg, 2); - - if (ret != 2) { - printk("%s: reg=0x%x (error=%d)\n", __FUNCTION__, reg, ret); - return ret; - } - - return b1[0]; -} - -static int cx24123_readlnbreg(struct cx24123_state* state, u8 reg) -{ - return state->lnbreg; -} - -static int cx24123_set_inversion(struct cx24123_state* state, fe_spectral_inversion_t inversion) -{ - switch (inversion) { - case INVERSION_OFF: - cx24123_writereg(state, 0x0e, cx24123_readreg(state, 0x0e) & 0x7f); - cx24123_writereg(state, 0x10, cx24123_readreg(state, 0x10) | 0x80); - break; - case INVERSION_ON: - cx24123_writereg(state, 0x0e, cx24123_readreg(state, 0x0e) | 0x80); - cx24123_writereg(state, 0x10, cx24123_readreg(state, 0x10) | 0x80); - break; - case INVERSION_AUTO: - cx24123_writereg(state, 0x10, cx24123_readreg(state, 0x10) & 0x7f); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int cx24123_get_inversion(struct cx24123_state* state, fe_spectral_inversion_t *inversion) -{ - u8 val; - - val = cx24123_readreg(state, 0x1b) >> 7; - - if (val == 0) - *inversion = INVERSION_OFF; - else - *inversion = INVERSION_ON; - - return 0; -} - -static int cx24123_set_fec(struct cx24123_state* state, fe_code_rate_t fec) -{ - if ( (fec < FEC_NONE) || (fec > FEC_AUTO) ) - fec = FEC_AUTO; - - /* Hardware has 5/11 and 3/5 but are never unused */ - switch (fec) { - case FEC_NONE: - return cx24123_writereg(state, 0x0f, 0x01); - case FEC_1_2: - return cx24123_writereg(state, 0x0f, 0x02); - case FEC_2_3: - return cx24123_writereg(state, 0x0f, 0x04); - case FEC_3_4: - return cx24123_writereg(state, 0x0f, 0x08); - case FEC_5_6: - return cx24123_writereg(state, 0x0f, 0x20); - case FEC_7_8: - return cx24123_writereg(state, 0x0f, 0x80); - case FEC_AUTO: - return cx24123_writereg(state, 0x0f, 0xae); - default: - return -EOPNOTSUPP; - } -} - -static int cx24123_get_fec(struct cx24123_state* state, fe_code_rate_t *fec) -{ - int ret; - u8 val; - - ret = cx24123_readreg (state, 0x1b); - if (ret < 0) - return ret; - val = ret & 0x07; - switch (val) { - case 1: - *fec = FEC_1_2; - break; - case 3: - *fec = FEC_2_3; - break; - case 4: - *fec = FEC_3_4; - break; - case 5: - *fec = FEC_4_5; - break; - case 6: - *fec = FEC_5_6; - break; - case 7: - *fec = FEC_7_8; - break; - case 2: /* *fec = FEC_3_5; break; */ - case 0: /* *fec = FEC_5_11; break; */ - *fec = FEC_AUTO; - break; - default: - *fec = FEC_NONE; // can't happen - } - - return 0; -} - -/* fixme: Symbol rates < 3MSps may not work because of precision loss */ -static int cx24123_set_symbolrate(struct cx24123_state* state, u32 srate) -{ - u32 val; - - val = (srate / 1185) * 100; - - /* Compensate for scaling up, by removing 17 symbols per 1Msps */ - val = val - (17 * (srate / 1000000)); - - cx24123_writereg(state, 0x08, (val >> 16) & 0xff ); - cx24123_writereg(state, 0x09, (val >> 8) & 0xff ); - cx24123_writereg(state, 0x0a, (val ) & 0xff ); - - return 0; -} - -/* - * Based on the required frequency and symbolrate, the tuner AGC has to be configured - * and the correct band selected. Calculate those values - */ -static int cx24123_pll_calculate(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) -{ - struct cx24123_state *state = fe->demodulator_priv; - u32 ndiv = 0, adiv = 0, vco_div = 0; - int i = 0; - - /* Defaults for low freq, low rate */ - state->VCAarg = cx24123_AGC_vals[0].VCAprogdata; - state->VGAarg = cx24123_AGC_vals[0].VGAprogdata; - state->bandselectarg = cx24123_bandselect_vals[0].progdata; - vco_div = cx24123_bandselect_vals[0].VCOdivider; - - /* For the given symbolerate, determine the VCA and VGA programming bits */ - for (i = 0; i < sizeof(cx24123_AGC_vals) / sizeof(cx24123_AGC_vals[0]); i++) - { - if ((cx24123_AGC_vals[i].symbolrate_low <= p->u.qpsk.symbol_rate) && - (cx24123_AGC_vals[i].symbolrate_high >= p->u.qpsk.symbol_rate) ) { - state->VCAarg = cx24123_AGC_vals[i].VCAprogdata; - state->VGAarg = cx24123_AGC_vals[i].VGAprogdata; - } - } - - /* For the given frequency, determine the bandselect programming bits */ - for (i = 0; i < sizeof(cx24123_bandselect_vals) / sizeof(cx24123_bandselect_vals[0]); i++) - { - if ((cx24123_bandselect_vals[i].freq_low <= p->frequency) && - (cx24123_bandselect_vals[i].freq_high >= p->frequency) ) { - state->bandselectarg = cx24123_bandselect_vals[i].progdata; - vco_div = cx24123_bandselect_vals[i].VCOdivider; - } - } - - /* Determine the N/A dividers for the requested lband freq (in kHz). */ - /* Note: 10111 (kHz) is the Crystal Freq and divider of 10. */ - ndiv = ( ((p->frequency * vco_div) / (10111 / 10) / 2) / 32) & 0x1ff; - adiv = ( ((p->frequency * vco_div) / (10111 / 10) / 2) % 32) & 0x1f; - - if (adiv == 0) - adiv++; - - /* determine the correct pll frequency values. */ - /* Command 11, refdiv 11, cpump polarity 1, cpump current 3mA 10. */ - state->pllarg = (3 << 19) | (3 << 17) | (1 << 16) | (2 << 14); - state->pllarg |= (ndiv << 5) | adiv; - - return 0; -} - -/* - * Tuner data is 21 bits long, must be left-aligned in data. - * Tuner cx24109 is written through a dedicated 3wire interface on the demod chip. - */ -static int cx24123_pll_writereg(struct dvb_frontend* fe, struct dvb_frontend_parameters *p, u32 data) -{ - struct cx24123_state *state = fe->demodulator_priv; - unsigned long timeout; - - /* align the 21 bytes into to bit23 boundary */ - data = data << 3; - - /* Reset the demod pll word length to 0x15 bits */ - cx24123_writereg(state, 0x21, 0x15); - - /* write the msb 8 bits, wait for the send to be completed */ - timeout = jiffies + msecs_to_jiffies(40); - cx24123_writereg(state, 0x22, (data >> 16) & 0xff); - while ((cx24123_readreg(state, 0x20) & 0x40) == 0) { - if (time_after(jiffies, timeout)) { - printk("%s: demodulator is not responding, possibly hung, aborting.\n", __FUNCTION__); - return -EREMOTEIO; - } - msleep(10); - } - - /* send another 8 bytes, wait for the send to be completed */ - timeout = jiffies + msecs_to_jiffies(40); - cx24123_writereg(state, 0x22, (data>>8) & 0xff ); - while ((cx24123_readreg(state, 0x20) & 0x40) == 0) { - if (time_after(jiffies, timeout)) { - printk("%s: demodulator is not responding, possibly hung, aborting.\n", __FUNCTION__); - return -EREMOTEIO; - } - msleep(10); - } - - /* send the lower 5 bits of this byte, padded with 3 LBB, wait for the send to be completed */ - timeout = jiffies + msecs_to_jiffies(40); - cx24123_writereg(state, 0x22, (data) & 0xff ); - while ((cx24123_readreg(state, 0x20) & 0x80)) { - if (time_after(jiffies, timeout)) { - printk("%s: demodulator is not responding, possibly hung, aborting.\n", __FUNCTION__); - return -EREMOTEIO; - } - msleep(10); - } - - /* Trigger the demod to configure the tuner */ - cx24123_writereg(state, 0x20, cx24123_readreg(state, 0x20) | 2); - cx24123_writereg(state, 0x20, cx24123_readreg(state, 0x20) & 0xfd); - - return 0; -} - -static int cx24123_pll_tune(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) -{ - struct cx24123_state *state = fe->demodulator_priv; - - if (cx24123_pll_calculate(fe, p) != 0) { - printk("%s: cx24123_pll_calcutate failed\n",__FUNCTION__); - return -EINVAL; - } - - /* Write the new VCO/VGA */ - cx24123_pll_writereg(fe, p, state->VCAarg); - cx24123_pll_writereg(fe, p, state->VGAarg); - - /* Write the new bandselect and pll args */ - cx24123_pll_writereg(fe, p, state->bandselectarg); - cx24123_pll_writereg(fe, p, state->pllarg); - - return 0; -} - -static int cx24123_initfe(struct dvb_frontend* fe) -{ - struct cx24123_state *state = fe->demodulator_priv; - int i; - - /* Configure the demod to a good set of defaults */ - for (i = 0; i < sizeof(cx24123_regdata) / sizeof(cx24123_regdata[0]); i++) - cx24123_writereg(state, cx24123_regdata[i].reg, cx24123_regdata[i].data); - - if (state->config->pll_init) - state->config->pll_init(fe); - - /* Configure the LNB for 14V */ - if (state->config->use_isl6421) - cx24123_writelnbreg(state, 0x0, 0x2a); - - return 0; -} - -static int cx24123_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage) -{ - struct cx24123_state *state = fe->demodulator_priv; - u8 val; - - switch (state->config->use_isl6421) { - - case 1: - - val = cx24123_readlnbreg(state, 0x0); - - switch (voltage) { - case SEC_VOLTAGE_13: - return cx24123_writelnbreg(state, 0x0, val & 0x32); /* V 13v */ - case SEC_VOLTAGE_18: - return cx24123_writelnbreg(state, 0x0, val | 0x04); /* H 18v */ - case SEC_VOLTAGE_OFF: - return cx24123_writelnbreg(state, 0x0, val & 0x30); - default: - return -EINVAL; - }; - - case 0: - - val = cx24123_readreg(state, 0x29); - - switch (voltage) { - case SEC_VOLTAGE_13: - dprintk("%s: setting voltage 13V\n", __FUNCTION__); - if (state->config->enable_lnb_voltage) - state->config->enable_lnb_voltage(fe, 1); - return cx24123_writereg(state, 0x29, val | 0x80); - case SEC_VOLTAGE_18: - dprintk("%s: setting voltage 18V\n", __FUNCTION__); - if (state->config->enable_lnb_voltage) - state->config->enable_lnb_voltage(fe, 1); - return cx24123_writereg(state, 0x29, val & 0x7f); - case SEC_VOLTAGE_OFF: - dprintk("%s: setting voltage off\n", __FUNCTION__); - if (state->config->enable_lnb_voltage) - state->config->enable_lnb_voltage(fe, 0); - return 0; - default: - return -EINVAL; - }; - } - - return 0; -} - -static int cx24123_send_diseqc_msg(struct dvb_frontend* fe, - struct dvb_diseqc_master_cmd *cmd) -{ - /* fixme: Implement diseqc */ - printk("%s: No support yet\n",__FUNCTION__); - - return -ENOTSUPP; -} - -static int cx24123_read_status(struct dvb_frontend* fe, fe_status_t* status) -{ - struct cx24123_state *state = fe->demodulator_priv; - - int sync = cx24123_readreg(state, 0x14); - int lock = cx24123_readreg(state, 0x20); - - *status = 0; - if (lock & 0x01) - *status |= FE_HAS_CARRIER | FE_HAS_SIGNAL; - if (sync & 0x04) - *status |= FE_HAS_VITERBI; - if (sync & 0x08) - *status |= FE_HAS_CARRIER; - if (sync & 0x80) - *status |= FE_HAS_SYNC | FE_HAS_LOCK; - - return 0; -} - -/* - * Configured to return the measurement of errors in blocks, because no UCBLOCKS value - * is available, so this value doubles up to satisfy both measurements - */ -static int cx24123_read_ber(struct dvb_frontend* fe, u32* ber) -{ - struct cx24123_state *state = fe->demodulator_priv; - - state->lastber = - ((cx24123_readreg(state, 0x1c) & 0x3f) << 16) | - (cx24123_readreg(state, 0x1d) << 8 | - cx24123_readreg(state, 0x1e)); - - /* Do the signal quality processing here, it's derived from the BER. */ - /* Scale the BER from a 24bit to a SNR 16 bit where higher = better */ - if (state->lastber < 5000) - state->snr = 655*100; - else if ( (state->lastber >= 5000) && (state->lastber < 55000) ) - state->snr = 655*90; - else if ( (state->lastber >= 55000) && (state->lastber < 150000) ) - state->snr = 655*80; - else if ( (state->lastber >= 150000) && (state->lastber < 250000) ) - state->snr = 655*70; - else if ( (state->lastber >= 250000) && (state->lastber < 450000) ) - state->snr = 655*65; - else - state->snr = 0; - - *ber = state->lastber; - - return 0; -} - -static int cx24123_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength) -{ - struct cx24123_state *state = fe->demodulator_priv; - *signal_strength = cx24123_readreg(state, 0x3b) << 8; /* larger = better */ - - return 0; -} - -static int cx24123_read_snr(struct dvb_frontend* fe, u16* snr) -{ - struct cx24123_state *state = fe->demodulator_priv; - *snr = state->snr; - - return 0; -} - -static int cx24123_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) -{ - struct cx24123_state *state = fe->demodulator_priv; - *ucblocks = state->lastber; - - return 0; -} - -static int cx24123_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) -{ - struct cx24123_state *state = fe->demodulator_priv; - - if (state->config->set_ts_params) - state->config->set_ts_params(fe, 0); - - state->currentfreq=p->frequency; - state->currentsymbolrate = p->u.qpsk.symbol_rate; - - cx24123_set_inversion(state, p->inversion); - cx24123_set_fec(state, p->u.qpsk.fec_inner); - cx24123_set_symbolrate(state, p->u.qpsk.symbol_rate); - cx24123_pll_tune(fe, p); - - /* Enable automatic aquisition and reset cycle */ - cx24123_writereg(state, 0x03, (cx24123_readreg(state, 0x03) | 0x07)); - cx24123_writereg(state, 0x00, 0x10); - cx24123_writereg(state, 0x00, 0); - - return 0; -} - -static int cx24123_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) -{ - struct cx24123_state *state = fe->demodulator_priv; - - if (cx24123_get_inversion(state, &p->inversion) != 0) { - printk("%s: Failed to get inversion status\n",__FUNCTION__); - return -EREMOTEIO; - } - if (cx24123_get_fec(state, &p->u.qpsk.fec_inner) != 0) { - printk("%s: Failed to get fec status\n",__FUNCTION__); - return -EREMOTEIO; - } - p->frequency = state->currentfreq; - p->u.qpsk.symbol_rate = state->currentsymbolrate; - - return 0; -} - -static int cx24123_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone) -{ - struct cx24123_state *state = fe->demodulator_priv; - u8 val; - - switch (state->config->use_isl6421) { - case 1: - - val = cx24123_readlnbreg(state, 0x0); - - switch (tone) { - case SEC_TONE_ON: - return cx24123_writelnbreg(state, 0x0, val | 0x10); - case SEC_TONE_OFF: - return cx24123_writelnbreg(state, 0x0, val & 0x2f); - default: - printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone); - return -EINVAL; - } - - case 0: - - val = cx24123_readreg(state, 0x29); - - switch (tone) { - case SEC_TONE_ON: - dprintk("%s: setting tone on\n", __FUNCTION__); - return cx24123_writereg(state, 0x29, val | 0x10); - case SEC_TONE_OFF: - dprintk("%s: setting tone off\n",__FUNCTION__); - return cx24123_writereg(state, 0x29, val & 0xef); - default: - printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone); - return -EINVAL; - } - } - - return 0; -} - -static void cx24123_release(struct dvb_frontend* fe) -{ - struct cx24123_state* state = fe->demodulator_priv; - dprintk("%s\n",__FUNCTION__); - kfree(state); -} - -static struct dvb_frontend_ops cx24123_ops; - -struct dvb_frontend* cx24123_attach(const struct cx24123_config* config, - struct i2c_adapter* i2c) -{ - struct cx24123_state* state = NULL; - int ret; - - dprintk("%s\n",__FUNCTION__); - - /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct cx24123_state), GFP_KERNEL); - if (state == NULL) { - printk("Unable to kmalloc\n"); - goto error; - } - - /* setup the state */ - state->config = config; - state->i2c = i2c; - memcpy(&state->ops, &cx24123_ops, sizeof(struct dvb_frontend_ops)); - state->lastber = 0; - state->snr = 0; - state->lnbreg = 0; - state->VCAarg = 0; - state->VGAarg = 0; - state->bandselectarg = 0; - state->pllarg = 0; - state->currentfreq = 0; - state->currentsymbolrate = 0; - - /* check if the demod is there */ - ret = cx24123_readreg(state, 0x00); - if ((ret != 0xd1) && (ret != 0xe1)) { - printk("Version != d1 or e1\n"); - goto error; - } - - /* create dvb_frontend */ - state->frontend.ops = &state->ops; - state->frontend.demodulator_priv = state; - return &state->frontend; - -error: - kfree(state); - - return NULL; -} - -static struct dvb_frontend_ops cx24123_ops = { - - .info = { - .name = "Conexant CX24123/CX24109", - .type = FE_QPSK, - .frequency_min = 950000, - .frequency_max = 2150000, - .frequency_stepsize = 1011, /* kHz for QPSK frontends */ - .frequency_tolerance = 29500, - .symbol_rate_min = 1000000, - .symbol_rate_max = 45000000, - .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_RECOVER - }, - - .release = cx24123_release, - - .init = cx24123_initfe, - .set_frontend = cx24123_set_frontend, - .get_frontend = cx24123_get_frontend, - .read_status = cx24123_read_status, - .read_ber = cx24123_read_ber, - .read_signal_strength = cx24123_read_signal_strength, - .read_snr = cx24123_read_snr, - .read_ucblocks = cx24123_read_ucblocks, - .diseqc_send_master_cmd = cx24123_send_diseqc_msg, - .set_tone = cx24123_set_tone, - .set_voltage = cx24123_set_voltage, -}; - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); - -MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24123/cx24109 hardware"); -MODULE_AUTHOR("Steven Toth"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(cx24123_attach); |