diff options
author | Patrick Boettcher <pb@linuxtv.org> | 2008-03-30 00:01:12 (GMT) |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-04-24 17:07:56 (GMT) |
commit | ca06fa79a5babc21f0240979e5b1dd34dcc3c6e4 (patch) | |
tree | 363a53a37c8ac6dd30b11ca2ce825a37fd40de15 /drivers/media/dvb | |
parent | 6394cf53abc0b3a2db9e8b947ef5c77b16861ec8 (diff) | |
download | linux-fsl-qoriq-ca06fa79a5babc21f0240979e5b1dd34dcc3c6e4.tar.xz |
V4L/DVB (7470): CX24123: preparing support for CX24113 tuner
To support a new device based on CX24123 (using the CX24113-tuner) the following was done:
- added two parameters to de-select the internal PLL-driver (for CX24108) and a AGC-function callback.
- added a virtual i2c-adapter which allow simple access behind the i2c-gate
- cleanup up some code
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb')
-rw-r--r-- | drivers/media/dvb/frontends/cx24123.c | 304 | ||||
-rw-r--r-- | drivers/media/dvb/frontends/cx24123.h | 21 |
2 files changed, 220 insertions, 105 deletions
diff --git a/drivers/media/dvb/frontends/cx24123.c b/drivers/media/dvb/frontends/cx24123.c index d74fdbd..7f68d78 100644 --- a/drivers/media/dvb/frontends/cx24123.c +++ b/drivers/media/dvb/frontends/cx24123.c @@ -1,24 +1,26 @@ /* - 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. -*/ + * 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> + * + * Support for CX24123/CX24113-NIM by Patrick Boettcher <pb@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/slab.h> #include <linux/kernel.h> @@ -32,9 +34,16 @@ static int force_band; static int debug; + +#define info(args...) do { printk(KERN_INFO "CX24123: " args); } while (0) +#define err(args...) do { printk(KERN_ERR "CX24123: " args); } while (0) + #define dprintk(args...) \ do { \ - if (debug) printk (KERN_DEBUG "cx24123: " args); \ + if (debug) { \ + printk(KERN_DEBUG "CX24123: %s: ", __func__); \ + printk(args); \ + } \ } while (0) struct cx24123_state @@ -51,6 +60,10 @@ struct cx24123_state u32 pllarg; u32 FILTune; + struct i2c_adapter tuner_i2c_adapter; + + u8 demod_rev; + /* The Demod/Tuner can't easily provide these, we cache them */ u32 currentfreq; u32 currentsymbolrate; @@ -225,48 +238,52 @@ static struct { {0x67, 0x83}, /* Non-DCII symbol clock */ }; -static int cx24123_writereg(struct cx24123_state* state, int reg, int data) +static int cx24123_i2c_writereg(struct cx24123_state *state, + u8 i2c_addr, int reg, int data) { u8 buf[] = { reg, data }; - struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 }; + struct i2c_msg msg = { + .addr = i2c_addr, .flags = 0, .buf = buf, .len = 2 + }; int err; - if (debug>1) - printk("cx24123: %s: write reg 0x%02x, value 0x%02x\n", - __FUNCTION__,reg, data); + /* printk(KERN_DEBUG "wr(%02x): %02x %02x\n", i2c_addr, reg, data); */ 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; + " data == 0x%02x)\n", __func__, err, reg, data); + return err; } return 0; } -static int cx24123_readreg(struct cx24123_state* state, u8 reg) +static int cx24123_i2c_readreg(struct cx24123_state *state, u8 i2c_addr, u8 reg) { int ret; - u8 b0[] = { reg }; - u8 b1[] = { 0 }; + u8 b = 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 } + { .addr = i2c_addr, .flags = 0, .buf = ®, .len = 1 }, + { .addr = i2c_addr, .flags = I2C_M_RD, .buf = &b, .len = 1 } }; ret = i2c_transfer(state->i2c, msg, 2); if (ret != 2) { - printk("%s: reg=0x%x (error=%d)\n", __FUNCTION__, reg, ret); + err("%s: reg=0x%x (error=%d)\n", __func__, reg, ret); return ret; } - if (debug>1) - printk("cx24123: read reg 0x%02x, value 0x%02x\n",reg, ret); + /* printk(KERN_DEBUG "rd(%02x): %02x %02x\n", i2c_addr, reg, b); */ - return b1[0]; + return b; } +#define cx24123_readreg(state, reg) \ + cx24123_i2c_readreg(state, state->config->demod_address, reg) +#define cx24123_writereg(state, reg, val) \ + cx24123_i2c_writereg(state, state->config->demod_address, reg, val) + static int cx24123_set_inversion(struct cx24123_state* state, fe_spectral_inversion_t inversion) { u8 nom_reg = cx24123_readreg(state, 0x0e); @@ -274,17 +291,17 @@ static int cx24123_set_inversion(struct cx24123_state* state, fe_spectral_invers switch (inversion) { case INVERSION_OFF: - dprintk("%s: inversion off\n",__FUNCTION__); + dprintk("inversion off\n"); cx24123_writereg(state, 0x0e, nom_reg & ~0x80); cx24123_writereg(state, 0x10, auto_reg | 0x80); break; case INVERSION_ON: - dprintk("%s: inversion on\n",__FUNCTION__); + dprintk("inversion on\n"); cx24123_writereg(state, 0x0e, nom_reg | 0x80); cx24123_writereg(state, 0x10, auto_reg | 0x80); break; case INVERSION_AUTO: - dprintk("%s: inversion auto\n",__FUNCTION__); + dprintk("inversion auto\n"); cx24123_writereg(state, 0x10, auto_reg & ~0x80); break; default: @@ -301,10 +318,10 @@ static int cx24123_get_inversion(struct cx24123_state* state, fe_spectral_invers val = cx24123_readreg(state, 0x1b) >> 7; if (val == 0) { - dprintk("%s: read inversion off\n",__FUNCTION__); + dprintk("read inversion off\n"); *inversion = INVERSION_OFF; } else { - dprintk("%s: read inversion on\n",__FUNCTION__); + dprintk("read inversion on\n"); *inversion = INVERSION_ON; } @@ -326,42 +343,42 @@ static int cx24123_set_fec(struct cx24123_state* state, fe_code_rate_t fec) switch (fec) { case FEC_1_2: - dprintk("%s: set FEC to 1/2\n",__FUNCTION__); + dprintk("set FEC to 1/2\n"); cx24123_writereg(state, 0x0e, nom_reg | 0x01); cx24123_writereg(state, 0x0f, 0x02); break; case FEC_2_3: - dprintk("%s: set FEC to 2/3\n",__FUNCTION__); + dprintk("set FEC to 2/3\n"); cx24123_writereg(state, 0x0e, nom_reg | 0x02); cx24123_writereg(state, 0x0f, 0x04); break; case FEC_3_4: - dprintk("%s: set FEC to 3/4\n",__FUNCTION__); + dprintk("set FEC to 3/4\n"); cx24123_writereg(state, 0x0e, nom_reg | 0x03); cx24123_writereg(state, 0x0f, 0x08); break; case FEC_4_5: - dprintk("%s: set FEC to 4/5\n",__FUNCTION__); + dprintk("set FEC to 4/5\n"); cx24123_writereg(state, 0x0e, nom_reg | 0x04); cx24123_writereg(state, 0x0f, 0x10); break; case FEC_5_6: - dprintk("%s: set FEC to 5/6\n",__FUNCTION__); + dprintk("set FEC to 5/6\n"); cx24123_writereg(state, 0x0e, nom_reg | 0x05); cx24123_writereg(state, 0x0f, 0x20); break; case FEC_6_7: - dprintk("%s: set FEC to 6/7\n",__FUNCTION__); + dprintk("set FEC to 6/7\n"); cx24123_writereg(state, 0x0e, nom_reg | 0x06); cx24123_writereg(state, 0x0f, 0x40); break; case FEC_7_8: - dprintk("%s: set FEC to 7/8\n",__FUNCTION__); + dprintk("set FEC to 7/8\n"); cx24123_writereg(state, 0x0e, nom_reg | 0x07); cx24123_writereg(state, 0x0f, 0x80); break; case FEC_AUTO: - dprintk("%s: set FEC to auto\n",__FUNCTION__); + dprintk("set FEC to auto\n"); cx24123_writereg(state, 0x0f, 0xfe); break; default: @@ -490,7 +507,8 @@ static int cx24123_set_symbolrate(struct cx24123_state* state, u32 srate) tmp = cx24123_readreg(state, 0x0c) & ~0xe0; cx24123_writereg(state, 0x0c, tmp | sample_gain << 5); - dprintk("%s: srate=%d, ratio=0x%08x, sample_rate=%i sample_gain=%d\n", __FUNCTION__, srate, ratio, sample_rate, sample_gain); + dprintk("srate=%d, ratio=0x%08x, sample_rate=%i sample_gain=%d\n", + srate, ratio, sample_rate, sample_gain); return 0; } @@ -570,7 +588,7 @@ static int cx24123_pll_writereg(struct dvb_frontend* fe, struct dvb_frontend_par struct cx24123_state *state = fe->demodulator_priv; unsigned long timeout; - dprintk("%s: pll writereg called, data=0x%08x\n",__FUNCTION__,data); + dprintk("pll writereg called, data=0x%08x\n", data); /* align the 21 bytes into to bit23 boundary */ data = data << 3; @@ -583,7 +601,8 @@ static int cx24123_pll_writereg(struct dvb_frontend* fe, struct dvb_frontend_par 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__); + err("%s: demodulator is not responding, "\ + "possibly hung, aborting.\n", __func__); return -EREMOTEIO; } msleep(10); @@ -594,7 +613,8 @@ static int cx24123_pll_writereg(struct dvb_frontend* fe, struct dvb_frontend_par 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__); + err("%s: demodulator is not responding, "\ + "possibly hung, aborting.\n", __func__); return -EREMOTEIO; } msleep(10); @@ -605,7 +625,8 @@ static int cx24123_pll_writereg(struct dvb_frontend* fe, struct dvb_frontend_par 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__); + err("%s: demodulator is not responding," \ + "possibly hung, aborting.\n", __func__); return -EREMOTEIO; } msleep(10); @@ -626,7 +647,7 @@ static int cx24123_pll_tune(struct dvb_frontend* fe, struct dvb_frontend_paramet dprintk("frequency=%i\n", p->frequency); if (cx24123_pll_calculate(fe, p) != 0) { - printk("%s: cx24123_pll_calcutate failed\n",__FUNCTION__); + err("%s: cx24123_pll_calcutate failed\n", __func__); return -EINVAL; } @@ -643,18 +664,38 @@ static int cx24123_pll_tune(struct dvb_frontend* fe, struct dvb_frontend_paramet cx24123_writereg(state, 0x27, state->FILTune >> 2); cx24123_writereg(state, 0x28, val | (state->FILTune & 0x3)); - dprintk("%s: pll tune VCA=%d, band=%d, pll=%d\n",__FUNCTION__,state->VCAarg, - state->bandselectarg,state->pllarg); + dprintk("pll tune VCA=%d, band=%d, pll=%d\n", state->VCAarg, + state->bandselectarg, state->pllarg); return 0; } + +/* + * 0x23: + * [7:7] = BTI enabled + * [6:6] = I2C repeater enabled + * [5:5] = I2C repeater start + * [0:0] = BTI start + */ + +/* mode == 1 -> i2c-repeater, 0 -> bti */ +static int cx24123_repeater_mode(struct cx24123_state *state, u8 mode, u8 start) +{ + u8 r = cx24123_readreg(state, 0x23) & 0x1e; + if (mode) + r |= (1 << 6) | (start << 5); + else + r |= (1 << 7) | (start); + return cx24123_writereg(state, 0x23, r); +} + static int cx24123_initfe(struct dvb_frontend* fe) { struct cx24123_state *state = fe->demodulator_priv; int i; - dprintk("%s: init frontend\n",__FUNCTION__); + dprintk("init frontend\n"); /* Configure the demod to a good set of defaults */ for (i = 0; i < ARRAY_SIZE(cx24123_regdata); i++) @@ -664,6 +705,9 @@ static int cx24123_initfe(struct dvb_frontend* fe) if(state->config->lnb_polarity) cx24123_writereg(state, 0x32, cx24123_readreg(state, 0x32) | 0x02); + if (state->config->dont_use_pll) + cx24123_repeater_mode(state, 1, 0); + return 0; } @@ -676,10 +720,10 @@ static int cx24123_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage switch (voltage) { case SEC_VOLTAGE_13: - dprintk("%s: setting voltage 13V\n", __FUNCTION__); + dprintk("setting voltage 13V\n"); return cx24123_writereg(state, 0x29, val & 0x7f); case SEC_VOLTAGE_18: - dprintk("%s: setting voltage 18V\n", __FUNCTION__); + dprintk("setting voltage 18V\n"); return cx24123_writereg(state, 0x29, val | 0x80); case SEC_VOLTAGE_OFF: /* already handled in cx88-dvb */ @@ -697,7 +741,8 @@ static void cx24123_wait_for_diseqc(struct cx24123_state *state) unsigned long timeout = jiffies + msecs_to_jiffies(200); while (!(cx24123_readreg(state, 0x29) & 0x40)) { if(time_after(jiffies, timeout)) { - printk("%s: diseqc queue not ready, command may be lost.\n", __FUNCTION__); + err("%s: diseqc queue not ready, " \ + "command may be lost.\n", __func__); break; } msleep(10); @@ -709,7 +754,7 @@ static int cx24123_send_diseqc_msg(struct dvb_frontend* fe, struct dvb_diseqc_ma struct cx24123_state *state = fe->demodulator_priv; int i, val, tone; - dprintk("%s:\n",__FUNCTION__); + dprintk("\n"); /* stop continuous tone if enabled */ tone = cx24123_readreg(state, 0x29); @@ -744,7 +789,7 @@ static int cx24123_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t struct cx24123_state *state = fe->demodulator_priv; int val, tone; - dprintk("%s:\n", __FUNCTION__); + dprintk("\n"); /* stop continuous tone if enabled */ tone = cx24123_readreg(state, 0x29); @@ -778,13 +823,21 @@ static int cx24123_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t 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_SIGNAL; + if (state->config->dont_use_pll) { + u32 tun_status = 0; + if (fe->ops.tuner_ops.get_status) + fe->ops.tuner_ops.get_status(fe, &tun_status); + if (tun_status & TUNER_STATUS_LOCKED) + *status |= FE_HAS_SIGNAL; + } else { + int lock = cx24123_readreg(state, 0x20); + if (lock & 0x01) + *status |= FE_HAS_SIGNAL; + } + if (sync & 0x02) *status |= FE_HAS_CARRIER; /* Phase locked */ if (sync & 0x04) @@ -803,7 +856,7 @@ static int cx24123_read_status(struct dvb_frontend* fe, fe_status_t* status) * 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) +static int cx24123_read_ber(struct dvb_frontend *fe, u32 *ber) { struct cx24123_state *state = fe->demodulator_priv; @@ -813,23 +866,24 @@ static int cx24123_read_ber(struct dvb_frontend* fe, u32* ber) (cx24123_readreg(state, 0x1d) << 8 | cx24123_readreg(state, 0x1e)); - dprintk("%s: BER = %d\n",__FUNCTION__,*ber); + dprintk("BER = %d\n", *ber); return 0; } -static int cx24123_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength) +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 */ - dprintk("%s: Signal strength = %d\n",__FUNCTION__,*signal_strength); + dprintk("Signal strength = %d\n", *signal_strength); return 0; } -static int cx24123_read_snr(struct dvb_frontend* fe, u16* snr) +static int cx24123_read_snr(struct dvb_frontend *fe, u16 *snr) { struct cx24123_state *state = fe->demodulator_priv; @@ -838,16 +892,17 @@ static int cx24123_read_snr(struct dvb_frontend* fe, u16* snr) *snr = 65535 - (((u16)cx24123_readreg(state, 0x18) << 8) | (u16)cx24123_readreg(state, 0x19)); - dprintk("%s: read S/N index = %d\n",__FUNCTION__,*snr); + dprintk("read S/N index = %d\n", *snr); return 0; } -static int cx24123_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p) +static int cx24123_set_frontend(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) { struct cx24123_state *state = fe->demodulator_priv; - dprintk("%s: set_frontend\n",__FUNCTION__); + dprintk("\n"); if (state->config->set_ts_params) state->config->set_ts_params(fe, 0); @@ -858,13 +913,22 @@ static int cx24123_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par 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); + + if (!state->config->dont_use_pll) + cx24123_pll_tune(fe, p); + else if (fe->ops.tuner_ops.set_params) + fe->ops.tuner_ops.set_params(fe, p); + else + err("it seems I don't have a tuner..."); /* 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); + if (state->config->agc_callback) + state->config->agc_callback(fe); + return 0; } @@ -872,14 +936,14 @@ static int cx24123_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_par { struct cx24123_state *state = fe->demodulator_priv; - dprintk("%s: get_frontend\n",__FUNCTION__); + dprintk("\n"); if (cx24123_get_inversion(state, &p->inversion) != 0) { - printk("%s: Failed to get inversion status\n",__FUNCTION__); + err("%s: Failed to get inversion status\n", __func__); return -EREMOTEIO; } if (cx24123_get_fec(state, &p->u.qpsk.fec_inner) != 0) { - printk("%s: Failed to get fec status\n",__FUNCTION__); + err("%s: Failed to get fec status\n", __func__); return -EREMOTEIO; } p->frequency = state->currentfreq; @@ -900,13 +964,13 @@ static int cx24123_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone) switch (tone) { case SEC_TONE_ON: - dprintk("%s: setting tone on\n", __FUNCTION__); + dprintk("setting tone on\n"); return cx24123_writereg(state, 0x29, val | 0x10); case SEC_TONE_OFF: - dprintk("%s: setting tone off\n",__FUNCTION__); + dprintk("setting tone off\n"); return cx24123_writereg(state, 0x29, val & 0xef); default: - printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone); + err("CASE reached default with tone=%d\n", tone); return -EINVAL; } @@ -939,47 +1003,86 @@ static int cx24123_get_algo(struct dvb_frontend *fe) static void cx24123_release(struct dvb_frontend* fe) { struct cx24123_state* state = fe->demodulator_priv; - dprintk("%s\n",__FUNCTION__); + dprintk("\n"); + i2c_del_adapter(&state->tuner_i2c_adapter); kfree(state); } +static int cx24123_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap, + struct i2c_msg msg[], int num) +{ + struct cx24123_state *state = i2c_get_adapdata(i2c_adap); + /* this repeater closes after the first stop */ + cx24123_repeater_mode(state, 1, 1); + return i2c_transfer(state->i2c, msg, num); +} + +static u32 cx24123_tuner_i2c_func(struct i2c_adapter *adapter) +{ + return I2C_FUNC_I2C; +} + +static struct i2c_algorithm cx24123_tuner_i2c_algo = { + .master_xfer = cx24123_tuner_i2c_tuner_xfer, + .functionality = cx24123_tuner_i2c_func, +}; + +struct i2c_adapter * + cx24123_get_tuner_i2c_adapter(struct dvb_frontend *fe) +{ + struct cx24123_state *state = fe->demodulator_priv; + return &state->tuner_i2c_adapter; +} +EXPORT_SYMBOL(cx24123_get_tuner_i2c_adapter); + 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__); + struct cx24123_state *state = + kzalloc(sizeof(struct cx24123_state), GFP_KERNEL); + dprintk("\n"); /* allocate memory for the internal state */ - state = kmalloc(sizeof(struct cx24123_state), GFP_KERNEL); if (state == NULL) { - printk("Unable to kmalloc\n"); + err("Unable to kmalloc\n"); goto error; } /* setup the state */ state->config = config; state->i2c = i2c; - 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"); + state->demod_rev = cx24123_readreg(state, 0x00); + switch (state->demod_rev) { + case 0xe1: info("detected CX24123C\n"); break; + case 0xd1: info("detected CX24123\n"); break; + default: + err("wrong demod revision: %x\n", state->demod_rev); goto error; } /* create dvb_frontend */ memcpy(&state->frontend.ops, &cx24123_ops, sizeof(struct dvb_frontend_ops)); state->frontend.demodulator_priv = state; + + /* create tuner i2c adapter */ + if (config->dont_use_pll) + cx24123_repeater_mode(state, 1, 0); + + strncpy(state->tuner_i2c_adapter.name, + "CX24123 tuner I2C bus", I2C_NAME_SIZE); + state->tuner_i2c_adapter.class = I2C_CLASS_TV_DIGITAL, + state->tuner_i2c_adapter.algo = &cx24123_tuner_i2c_algo; + state->tuner_i2c_adapter.algo_data = NULL; + i2c_set_adapdata(&state->tuner_i2c_adapter, state); + if (i2c_add_adapter(&state->tuner_i2c_adapter) < 0) { + err("tuner i2c bus could not be initialized\n"); + goto error; + } + return &state->frontend; error: @@ -1029,7 +1132,8 @@ MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)"); module_param(force_band, int, 0644); MODULE_PARM_DESC(force_band, "Force a specific band select (1-9, default:off)."); -MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24123/cx24109 hardware"); +MODULE_DESCRIPTION("DVB Frontend module for Conexant " \ + "CX24123/CX24109/CX24113 hardware"); MODULE_AUTHOR("Steven Toth"); MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb/frontends/cx24123.h b/drivers/media/dvb/frontends/cx24123.h index 84f9e4f..81ebc3d 100644 --- a/drivers/media/dvb/frontends/cx24123.h +++ b/drivers/media/dvb/frontends/cx24123.h @@ -33,16 +33,27 @@ struct cx24123_config /* 0 = LNB voltage normal, 1 = LNB voltage inverted */ int lnb_polarity; + + /* this device has another tuner */ + u8 dont_use_pll; + void (*agc_callback) (struct dvb_frontend *); }; #if defined(CONFIG_DVB_CX24123) || (defined(CONFIG_DVB_CX24123_MODULE) && defined(MODULE)) -extern struct dvb_frontend* cx24123_attach(const struct cx24123_config* config, - struct i2c_adapter* i2c); +extern struct dvb_frontend *cx24123_attach(const struct cx24123_config *config, + struct i2c_adapter *i2c); +extern struct i2c_adapter *cx24123_get_tuner_i2c_adapter(struct dvb_frontend *); #else -static inline struct dvb_frontend* cx24123_attach(const struct cx24123_config* config, - struct i2c_adapter* i2c) +static inline struct dvb_frontend *cx24123_attach( + const struct cx24123_config *config, struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +static struct i2c_adapter * + cx24123_get_tuner_i2c_adapter(struct dvb_frontend *fe) { - printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__); + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); return NULL; } #endif // CONFIG_DVB_CX24123 |