diff options
| author | Christian Daniel <cd@maintech.de> | 2012-03-06 14:43:03 +0100 |
|---|---|---|
| committer | Christian Daniel <cd@maintech.de> | 2012-03-06 14:43:03 +0100 |
| commit | 463a3f9c284528008a54d124b9b3ad37d05dc14d (patch) | |
| tree | 77bf02dfb45e285fb054f25b34e0dbac0282100b | |
| parent | 6d95768e9ce87def113d2e0dd796fafcf99e942e (diff) | |
tuner_e4k: add setting for common mode
| -rw-r--r-- | firmware/include/tuner_e4k.h | 1 | ||||
| -rw-r--r-- | firmware/sdr-test-project/main.c | 20 | ||||
| -rw-r--r-- | firmware/src/tuner_e4k.c | 10 |
3 files changed, 31 insertions, 0 deletions
diff --git a/firmware/include/tuner_e4k.h b/firmware/include/tuner_e4k.h index 579299a..26b9eaf 100644 --- a/firmware/include/tuner_e4k.h +++ b/firmware/include/tuner_e4k.h @@ -191,6 +191,7 @@ struct e4k_state { int e4k_init(struct e4k_state *e4k); int e4k_if_gain_set(struct e4k_state *e4k, uint8_t stage, int8_t value); int e4k_mixer_gain_set(struct e4k_state *e4k, int8_t value); +int e4k_commonmode_set(struct e4k_state *e4k, int8_t value); int e4k_tune_freq(struct e4k_state *e4k, uint32_t freq); int e4k_tune_params(struct e4k_state *e4k, struct e4k_pll_params *p); int e4k_compute_pll_params(struct e4k_pll_params *oscp, uint32_t fosc, uint32_t intended_flo); diff --git a/firmware/sdr-test-project/main.c b/firmware/sdr-test-project/main.c index 20684a4..e46ea03 100644 --- a/firmware/sdr-test-project/main.c +++ b/firmware/sdr-test-project/main.c @@ -295,6 +295,24 @@ static int cmd_tuner_dco_table(struct cmd_state *cs, enum cmd_op op, return e4k_dc_offset_gen_table(&e4k); } +static int cmd_tuner_commonmode(struct cmd_state *cs, enum cmd_op op, + const char *cmd, int argc, char **argv) +{ + int32_t cm; + + switch (op) { + case CMD_OP_SET: + if (argc < 1) + return -EINVAL; + cm = strtoul(argv[0], NULL, 10); + e4k_commonmode_set(&e4k, cm); + break; + default: + return -EINVAL; + } + return 0; +} + static struct cmd cmds[] = { { "tuner.init", CMD_OP_EXEC, cmd_tuner_init, "Initialize the tuner" }, @@ -312,6 +330,8 @@ static struct cmd cmds[] = { "Perform DC offset calibration" }, { "tuner.dc_table", CMD_OP_EXEC, cmd_tuner_dco_table, "Generate DC offset table" }, + { "tuner.commonmode", CMD_OP_SET, cmd_tuner_commonmode, + "Switch common mode voltage" }, { "si570.freq", CMD_OP_SET|CMD_OP_GET, cmd_si570_freq, "Change the SI570 clock frequency" }, diff --git a/firmware/src/tuner_e4k.c b/firmware/src/tuner_e4k.c index 56a49da..ddbecbe 100644 --- a/firmware/src/tuner_e4k.c +++ b/firmware/src/tuner_e4k.c @@ -714,6 +714,16 @@ int e4k_mixer_gain_set(struct e4k_state *e4k, int8_t value) return e4k_reg_set_mask(e4k, E4K_REG_GAIN2, 1, bit); } +int e4k_commonmode_set(struct e4k_state *e4k, int8_t value) +{ + if(value < 0) + return -EINVAL; + else if(value > 7) + return -EINVAL; + + return e4k_reg_set_mask(e4k, E4K_REG_DC7, 7, value); +} + /*********************************************************************** * DC Offset */ |