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fw/tuner_e4k: Add function to enable/disable the IF channel filter 

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2012-04-01 21:35:32 +02:00 committed by Harald Welte
parent 6593b2be38
commit 088d53127b
2 changed files with 12 additions and 0 deletions
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1
firmware/include/tuner_e4k.h
View File

@ -198,6 +198,7 @@ int e4k_compute_pll_params(struct e4k_pll_params *oscp, uint32_t fosc, uint32_t
int e4k_if_filter_bw_get(struct e4k_state *e4k, enum e4k_if_filter filter);
int e4k_if_filter_bw_set(struct e4k_state *e4k, enum e4k_if_filter filter,
uint32_t bandwidth);
int e4k_if_filter_chan_enable(struct e4k_state *e4k, int on);
int e4k_rf_filter_set(struct e4k_state *e4k);
int e4k_reg_write(struct e4k_state *e4k, uint8_t reg, uint8_t val);

11
firmware/src/tuner_e4k.c
View File

@ -300,6 +300,17 @@ int e4k_if_filter_bw_set(struct e4k_state *e4k, enum e4k_if_filter filter,
return e4k_field_write(e4k, field, bw_idx);
}
/*! \brief Enables / Disables the channel filter
* \param[in] e4k reference to the tuner chip
* \param[in] on 1=filter enabled, 0=filter disabled
* \returns 0 success, negative errors
*/
int e4k_if_filter_chan_enable(struct e4k_state *e4k, int on)
{
return e4k_reg_set_mask(e4k, E4K_REG_FILT3, E4K_FILT3_DISABLE,
on ? 0 : E4K_FILT3_DISABLE);
}
int e4k_if_filter_bw_get(struct e4k_state *e4k, enum e4k_if_filter filter)
{
const uint32_t *arr;