Hartmut Hackmann wrote:
> Hi, Tim
> <snip>
>>>
>>> I think i know now how your card needs to be configured.
>>> Something that seems not to be really clear for you is the
>>> configuration
>>> of the so-called AGC (automatic gain control) of the tuner. This
>>> needs to be switched according to the function the tuner is used for:
>>> analog TV -> FM Radio -> DVB-T.
>>> This is done with the 4052 analog mux and requires 2 control bits ->
>>> the GPIOs.
>>> GPIO 21 is used to switch between analog TV and FM radio.
>>> Typically GPIO21=0 -> analog TV, GPIO21=1 -> FM Radio.
>>> In your case, GPIO22 is used to switch between DVB-T and analog
>>> while most cards
>>> use GPIO1 of the tda10046 for this.
>>>
>>> You should need to make chages only in saa7134-dvb, dvb_init()
>>> - remove the old
>>> case SAA7134_BOARD_KWORLD_DVBT_210: (plus code)
>>> -and add it to
>>> case SAA7134_BOARD_FLYDVBT_HYBRID_CARDBUS:
>>>
>>> That should do it (though we should add a .antenna switch to the
>>> configuration).
>>>
>>> Best regards
>>> Hartmut
>>>
>> Hi Hartmut,
>>
>>
>> OK, so instead of this:
>> ...
>> /* ------------------------------------------------------------------
>> * special case: this card uses saa713x GPIO22 for the mode switch
>> */
>>
>> static int ads_duo_tuner_init(struct dvb_frontend *fe)
>> {
>> struct saa7134_dev *dev = fe->dvb->priv;
>> philips_tda827x_tuner_init(fe);
>> /* route TDA8275a AGC input to the channel decoder */
>> saa7134_set_gpio(dev, 22, 1);
>> return 0;
>> }
>>
>> static int ads_duo_tuner_sleep(struct dvb_frontend *fe)
>> {
>> struct saa7134_dev *dev = fe->dvb->priv;
>> /* route TDA8275a AGC input to the analog IF chip*/
>> saa7134_set_gpio(dev, 22, 0);
>> philips_tda827x_tuner_sleep(fe);
>> return 0;
>> }
>>
>> static struct tda827x_config ads_duo_cfg = {
>> .tuner_callback = saa7134_tuner_callback,
>> .init = ads_duo_tuner_init,
>> .sleep = ads_duo_tuner_sleep,
>> .config = 0
>> };
>>
>> static struct tda1004x_config ads_tech_duo_config = {
>> .demod_address = 0x08,
>> .invert = 1,
>> .invert_oclk = 0,
>> .xtal_freq = TDA10046_XTAL_16M,
>> .agc_config = TDA10046_AGC_TDA827X,
>> .gpio_config = TDA10046_GP00_I,
>> .if_freq = TDA10046_FREQ_045,
>> .tuner_address = 0x61,
>> .request_firmware = philips_tda1004x_request_firmware
>> };
>>
>> static int kw210_tuner_init(struct dvb_frontend *fe)
>> {
>> struct saa7134_dev *dev = fe->dvb->priv;
>> philips_tda827x_tuner_init(fe);
>> /* route TDA8275a AGC input to the channel decoder */
>> saa7134_set_gpio(dev, 22, 1);
>> return 0;
>> }
>>
>> static int kw210_tuner_sleep(struct dvb_frontend *fe)
>> {
>> struct saa7134_dev *dev = fe->dvb->priv;
>> /* route TDA8275a AGC input to the analog IF chip*/
>> saa7134_set_gpio(dev, 22, 0);
>> philips_tda827x_tuner_sleep(fe);
>> return 0;
>> }
>>
>> static struct tda827x_config kw210_cfg = {
>> .tuner_callback = saa7134_tuner_callback,
>> .init = kw210_tuner_init,
>> .sleep = kw210_tuner_sleep,
>> .config = 0
>> };
>>
>> static struct tda1004x_config kworld_dvb_t_210_config = {
>> .demod_address = 0x08,
>> .invert = 1,
>> .invert_oclk = 0,
>> .xtal_freq = TDA10046_XTAL_16M,
>> .agc_config = TDA10046_AGC_TDA827X,
>> .gpio_config = TDA10046_GP11_I,
>> .if_freq = TDA10046_FREQ_045,
>> .tuner_address = 0x61,
>> .antenna_switch= 1,
>> .request_firmware = philips_tda1004x_request_firmware
>> };
>> -------------------
>> /* ==================================================================
>> * Core code
>> */
>>
>> static int dvb_init(struct saa7134_dev *dev)
>> {
>> ...
>> case SAA7134_BOARD_KWORLD_DVBT_210:
>> dev->dvb.frontend = dvb_attach(tda10046_attach,
>> &kworld_dvb_t_210_config, &dev->i2c_adap);
>> if (dev->dvb.frontend) {
>> if (dvb_attach(tda827x_attach,dev->dvb.frontend,
>> kworld_dvb_t_210_config.tuner_address, &dev->i2c_adap,
>> &kw210_cfg) == NULL) {
>> wprintk("no tda827x tuner found at addr: %02x\n",
>> kworld_dvb_t_210_config.tuner_address);
>> }
>> }
>> break;
>> ...
>> case SAA7134_BOARD_ADS_DUO_CARDBUS_PTV331:
>> case SAA7134_BOARD_FLYDVBT_HYBRID_CARDBUS:
>> dev->dvb.frontend = dvb_attach(tda10046_attach,
>> &ads_tech_duo_config,
>> &dev->i2c_adap);
>> if (dev->dvb.frontend) {
>> if (dvb_attach(tda827x_attach,dev->dvb.frontend,
>> ads_tech_duo_config.tuner_address, &dev->i2c_adap,
>> &ads_duo_cfg) == NULL) {
>> wprintk("no tda827x tuner found at addr: %02x\n",
>> ads_tech_duo_config.tuner_address);
>> }
>> }
>> break;
>> ...
>> <snip>
> Ok , the antenna_switch is clear. But the
> .gpio_config makes no sense. The card either uses either GPIO22 or
> the tda10046 for mode switching but not both.
> What happens if you use the "bad" gpio_config?
> Please switch to tzap for testing. This command line program clearly
> reports the status of the channel decoder, including signal level.
>
> Hartmut
>
Hi Hartmut,
1) With .gpio_config = TDA10046_GP11_I,
root@ubuntu:/home/timf# tzap -r "TEN HD"
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
tuning to 788500000 Hz
video pid 0x0202, audio pid 0x0000
status 00 | signal 9d9d | snr 3333 | ber 0001fffe | unc 0000004d |
status 1f | signal 9d9d | snr fdfd | ber 000001b8 | unc ffffffff |
FE_HAS_LOCK
status 1f | signal 9c9c | snr fdfd | ber 000001de | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9c9c | snr fefe | ber 0000017c | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9c9c | snr fefe | ber 00000182 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9c9c | snr fefe | ber 000001a4 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9b9b | snr fefe | ber 00000202 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9b9b | snr fefe | ber 0000021c | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9b9b | snr fefe | ber 00000226 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9c9c | snr fefe | ber 00000234 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9b9b | snr fefe | ber 00000290 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9b9b | snr fefe | ber 00000240 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 9c9c | snr fefe | ber 000001fa | unc 00000000 |
FE_HAS_LOCK
Analog-tv also scans fine.
2) With
// .gpio_config = TDA10046_GP11_I,
.gpio_config = TDA10046_GP00_I,
timf@ubuntu:~$ sudo -s -H
[sudo] password for timf:
root@ubuntu:/home/timf# tzap -r "TEN HD"
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
tuning to 788500000 Hz
video pid 0x0202, audio pid 0x0000
status 00 | signal 0000 | snr 9494 | ber 0001fffe | unc 00000000 |
status 1f | signal 0000 | snr ecec | ber 00019622 | unc ffffffff |
FE_HAS_LOCK
status 1f | signal 0000 | snr f8f8 | ber 00014eac | unc ffffffff |
FE_HAS_LOCK
status 00 | signal 0000 | snr 5e5e | ber 0001fffe | unc 00000000 |
status 1f | signal 0000 | snr fcfc | ber 00002bcc | unc ffffffff |
FE_HAS_LOCK
status 1f | signal 0000 | snr fdfd | ber 000018a2 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 0000 | snr fdfd | ber 00000e74 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 0000 | snr fdfd | ber 00000912 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 0000 | snr fefe | ber 000006b6 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 0000 | snr fefe | ber 0000068e | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 0000 | snr fdfd | ber 000005c2 | unc 00000000 |
FE_HAS_LOCK
status 1f | signal 0000 | snr fefe | ber 00000584 | unc 00000000 |
FE_HAS_LOCK
However, analog-tv fails to scan anything -> "no signal"
3) antenna_switch
static int philips_tda827x_tuner_init(struct dvb_frontend *fe)
{
struct saa7134_dev *dev = fe->dvb->priv;
struct tda1004x_state *state = fe->demodulator_priv;
switch (state->config->antenna_switch) {
case 0: break;
case 1: dprintk("setting GPIO21 to 0 (TV antenna?)\n");
saa7134_set_gpio(dev, 21, 0);
break;
case 2: dprintk("setting GPIO21 to 1 (Radio antenna?)\n");
saa7134_set_gpio(dev, 21, 1);
break;
}
return 0;
}
static int philips_tda827x_tuner_sleep(struct dvb_frontend *fe)
{
struct saa7134_dev *dev = fe->dvb->priv;
struct tda1004x_state *state = fe->demodulator_priv;
switch (state->config->antenna_switch) {
case 0: break;
case 1: dprintk("setting GPIO21 to 1 (Radio antenna?)\n");
saa7134_set_gpio(dev, 21, 1);
break;
case 2: dprintk("setting GPIO21 to 0 (TV antenna?)\n");
saa7134_set_gpio(dev, 21, 0);
break;
}
return 0;
}
If I put .antenna_switch = 1 or 2, in my struct, dvb-t fails to scan.
I can't put antenna_switch in my struct, can I, as I am using gpio22?
So I took it out, and in saa7134-cards.c, changed .radio to this:
[SAA7134_BOARD_KWORLD_DVBT_210] = {
.name = "KWorld DVB-T 210",
.audio_clock = 0x00187de7,
.tuner_type = TUNER_PHILIPS_TDA8290,
.radio_type = UNSET,
.tuner_addr = ADDR_UNSET,
.radio_addr = ADDR_UNSET,
.mpeg = SAA7134_MPEG_DVB,
.gpiomask = 0 << 21,
.inputs = {{
.name = name_tv,
.vmux = 1,
.amux = TV,
.tv = 1,
},{
.name = name_comp1,
.vmux = 3,
.amux = LINE1,
},{
.name = name_svideo,
.vmux = 8,
.amux = LINE1,
}},
.radio = {
.name = name_radio,
.amux = TV,
.gpio = 0x00000000,
},
},
I still can't tune to a radio cahnnel.
I'm not sure how to switch to radio, I'm not even sure which gpio it's on.
I assume it's on gpio21, but I've tried various configs - none work.
Regards,
Tim
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