sdr
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rtl-sdr
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select fc0012 UHF/VHF-filter according to frequency 

Signed-off-by: Steve Markgraf <steve@steve-m.de>
This commit is contained in:
Steve Markgraf 2012-04-02 18:17:28 +02:00
parent 3621cdfc60
commit 09c00e439f
1 changed files with 5 additions and 1 deletions
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6
src/rtl-sdr.c
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@ -43,6 +43,8 @@ typedef struct rtlsdr_tuner {
int gain; /* dB */
} rtlsdr_tuner_t;
void rtlsdr_set_gpio_bit(rtlsdr_dev_t *dev, uint8_t gpio, int val);
/* generic tuner interface functions, shall be moved to the tuner implementations */
int e4k_init(void *dev) { return e4000_Initialize(dev); }
int e4k_exit(void *dev) { return 0; }
@ -53,8 +55,9 @@ int e4k_set_gain(void *dev, int gain) { return 0; }
int fc0012_init(void *dev) { return FC0012_Open(dev); }
int fc0012_exit(void *dev) { return 0; }
int fc0012_tune(void *dev, int freq) {
/* TODO set GPIO6 accordingly */
unsigned int bw = 6;
/* select V-band/U-band filter */
rtlsdr_set_gpio_bit(dev, 6, (freq > 300000000) ? 1 : 0);
return FC0012_SetFrequency(dev, freq/1000, bw & 0xff);
}
int fc0012_set_bw(void *dev, int bw) {
@ -675,6 +678,7 @@ rtlsdr_dev_t *rtlsdr_open(uint32_t index)
reg = rtlsdr_i2c_read_reg(dev, FC0012_I2C_ADDR, FC0012_CHECK_ADDR);
if (reg == FC0012_CHECK_VAL) {
fprintf(stderr, "Found Fitipower FC0012 tuner\n");
rtlsdr_set_gpio_output(dev, 6);
dev->tuner = &tuners[RTLSDR_TUNER_FC0012];
goto found;
}