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Update tuner_r82xx.c #2

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f89a3f2
Update tuner_r82xx.c
AB9IL Jul 21, 2017
80cd5a7
Improve the gain balance.
AB9IL Sep 29, 2017
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16 changes: 8 additions & 8 deletions src/tuner_r82xx.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1024,21 +1024,21 @@ int r82xx_set_gain(struct r82xx_priv *priv, int set_manual_gain, int gain)
uint8_t data[4];

/* LNA auto off */
rc = r82xx_write_reg_mask(priv, 0x05, 0x10, 0x10);
rc = r82xx_write_reg_mask(priv, 0x05, 0x04, 0x10);
if (rc < 0)
return rc;

/* Mixer auto off */
rc = r82xx_write_reg_mask(priv, 0x07, 0, 0x10);
rc = r82xx_write_reg_mask(priv, 0x07, 0x04, 0x10);
if (rc < 0)
return rc;

rc = r82xx_read(priv, 0x00, data, sizeof(data));
if (rc < 0)
return rc;

/* set fixed VGA gain for now (16.3 dB) */
rc = r82xx_write_reg_mask(priv, 0x0c, 0x08, 0x9f);
/* set max VGA gain */
rc = r82xx_write_reg_mask(priv, 0x0c, 0x0f, 0x9f);
if (rc < 0)
return rc;

Expand All @@ -1065,17 +1065,17 @@ int r82xx_set_gain(struct r82xx_priv *priv, int set_manual_gain, int gain)
return rc;
} else {
/* LNA */
rc = r82xx_write_reg_mask(priv, 0x05, 0, 0x10);
rc = r82xx_write_reg_mask(priv, 0x05, 0x04, 0x10);
if (rc < 0)
return rc;

/* Mixer */
rc = r82xx_write_reg_mask(priv, 0x07, 0x10, 0x10);
rc = r82xx_write_reg_mask(priv, 0x07, 0x04, 0x10);
if (rc < 0)
return rc;

/* set fixed VGA gain for now (26.5 dB) */
rc = r82xx_write_reg_mask(priv, 0x0c, 0x0b, 0x9f);
/* set max VGA gain */
rc = r82xx_write_reg_mask(priv, 0x0c, 0x0f, 0x9f);
if (rc < 0)
return rc;
}
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