diff options
Diffstat (limited to 'src/tuner_r82xx.c')
| -rw-r--r-- | src/tuner_r82xx.c | 96 |
1 files changed, 21 insertions, 75 deletions
diff --git a/src/tuner_r82xx.c b/src/tuner_r82xx.c index f620238..997abd7 100644 --- a/src/tuner_r82xx.c +++ b/src/tuner_r82xx.c @@ -330,8 +330,14 @@ static int r82xx_read(struct r82xx_priv *priv, uint8_t reg, uint8_t *val, int le priv->buf[0] = reg; rc = rtlsdr_i2c_write_fn(priv->rtl_dev, priv->cfg->i2c_addr, priv->buf, 1); - if (rc < 1) - return rc; + + if (rc != 1) { + fprintf(stderr, "%s: i2c wr failed=%d reg=%02x len=%d\n", + __FUNCTION__, rc, reg, 1); + if (rc < 0) + return rc; + return -1; + } rc = rtlsdr_i2c_read_fn(priv->rtl_dev, priv->cfg->i2c_addr, p, len); @@ -770,78 +776,18 @@ static int r82xx_set_tv_standard(struct r82xx_priv *priv, uint8_t lt_att, flt_ext_widest, polyfil_cur; int need_calibration; - if (delsys == SYS_ISDBT) { - if_khz = 4063; - filt_cal_lo = 59000; - filt_gain = 0x10; /* +3db, 6mhz on */ - img_r = 0x00; /* image negative */ - filt_q = 0x10; /* r10[4]:low q(1'b1) */ - hp_cor = 0x6a; /* 1.7m disable, +2cap, 1.25mhz */ - ext_enable = 0x40; /* r30[6], ext enable; r30[5]:0 ext at lna max */ - loop_through = 0x00; /* r5[7], lt on */ - lt_att = 0x00; /* r31[7], lt att enable */ - flt_ext_widest = 0x00; /* r15[7]: flt_ext_wide off */ - polyfil_cur = 0x60; /* r25[6:5]:min */ - } else { - if (bw <= 6) { - if_khz = 3570; - filt_cal_lo = 56000; /* 52000->56000 */ - filt_gain = 0x10; /* +3db, 6mhz on */ - img_r = 0x00; /* image negative */ - filt_q = 0x10; /* r10[4]:low q(1'b1) */ - hp_cor = 0x6b; /* 1.7m disable, +2cap, 1.0mhz */ - ext_enable = 0x60; /* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */ - loop_through = 0x00; /* r5[7], lt on */ - lt_att = 0x00; /* r31[7], lt att enable */ - flt_ext_widest = 0x00; /* r15[7]: flt_ext_wide off */ - polyfil_cur = 0x60; /* r25[6:5]:min */ - } else if (bw == 7) { -#if 0 - /* - * There are two 7 MHz tables defined on the original - * driver, but just the second one seems to be visible - * by rtl2832. Keep this one here commented, as it - * might be needed in the future - */ - - if_khz = 4070; - filt_cal_lo = 60000; - filt_gain = 0x10; /* +3db, 6mhz on */ - img_r = 0x00; /* image negative */ - filt_q = 0x10; /* r10[4]:low q(1'b1) */ - hp_cor = 0x2b; /* 1.7m disable, +1cap, 1.0mhz */ - ext_enable = 0x60; /* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */ - loop_through = 0x00; /* r5[7], lt on */ - lt_att = 0x00; /* r31[7], lt att enable */ - flt_ext_widest = 0x00; /* r15[7]: flt_ext_wide off */ - polyfil_cur = 0x60; /* r25[6:5]:min */ -#endif - /* 7 MHz, second table */ - if_khz = 4570; - filt_cal_lo = 63000; - filt_gain = 0x10; /* +3db, 6mhz on */ - img_r = 0x00; /* image negative */ - filt_q = 0x10; /* r10[4]:low q(1'b1) */ - hp_cor = 0x2a; /* 1.7m disable, +1cap, 1.25mhz */ - ext_enable = 0x60; /* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */ - loop_through = 0x00; /* r5[7], lt on */ - lt_att = 0x00; /* r31[7], lt att enable */ - flt_ext_widest = 0x00; /* r15[7]: flt_ext_wide off */ - polyfil_cur = 0x60; /* r25[6:5]:min */ - } else { - if_khz = 4570; - filt_cal_lo = 68500; - filt_gain = 0x10; /* +3db, 6mhz on */ - img_r = 0x00; /* image negative */ - filt_q = 0x10; /* r10[4]:low q(1'b1) */ - hp_cor = 0x0b; /* 1.7m disable, +0cap, 1.0mhz */ - ext_enable = 0x60; /* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */ - loop_through = 0x00; /* r5[7], lt on */ - lt_att = 0x00; /* r31[7], lt att enable */ - flt_ext_widest = 0x00; /* r15[7]: flt_ext_wide off */ - polyfil_cur = 0x60; /* r25[6:5]:min */ - } - } + /* BW < 6 MHz */ + if_khz = 3570; + filt_cal_lo = 56000; /* 52000->56000 */ + filt_gain = 0x10; /* +3db, 6mhz on */ + img_r = 0x00; /* image negative */ + filt_q = 0x10; /* r10[4]:low q(1'b1) */ + hp_cor = 0x6b; /* 1.7m disable, +2cap, 1.0mhz */ + ext_enable = 0x60; /* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */ + loop_through = 0x01; /* r5[7], lt off */ + lt_att = 0x00; /* r31[7], lt att enable */ + flt_ext_widest = 0x00; /* r15[7]: flt_ext_wide off */ + polyfil_cur = 0x60; /* r25[6:5]:min */ /* Initialize the shadow registers */ memcpy(priv->regs, r82xx_init_array, sizeof(r82xx_init_array)); @@ -1196,7 +1142,7 @@ int r82xx_standby(struct r82xx_priv *priv) rc = r82xx_write_reg(priv, 0x06, 0xb1); if (rc < 0) return rc; - rc = r82xx_write_reg(priv, 0x05, 0x03); + rc = r82xx_write_reg(priv, 0x05, 0xa0); if (rc < 0) return rc; rc = r82xx_write_reg(priv, 0x07, 0x3a); |