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cem-dt-885x: Support for changing time weighting

This commit is contained in:
Bert Vermeulen 2013-06-15 13:00:41 +02:00
parent be73391982
commit 1487ce4fbc
3 changed files with 95 additions and 0 deletions
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29
hardware/cem-dt-885x/api.c
View File

@ -34,6 +34,7 @@ static const int32_t hwcaps[] = {
SR_CONF_CONTINUOUS,
SR_CONF_DATALOG,
SR_CONF_SPL_WEIGHT_FREQ,
SR_CONF_SPL_WEIGHT_TIME,
};
static const char *weight_freq[] = {
@ -41,6 +42,11 @@ static const char *weight_freq[] = {
"C",
};
static const char *weight_time[] = {
"F",
"S",
};
SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
static struct sr_dev_driver *di = &cem_dt_885x_driver_info;
@ -187,6 +193,15 @@ static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
else
return SR_ERR;
break;
case SR_CONF_SPL_WEIGHT_TIME:
tmp = cem_dt_885x_weight_time_get(sdi);
if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_F)
*data = g_variant_new_string("F");
else if (tmp == SR_MQFLAG_SPL_TIME_WEIGHT_S)
*data = g_variant_new_string("S");
else
return SR_ERR;
break;
default:
return SR_ERR_NA;
}
@ -236,6 +251,17 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
else
return SR_ERR_ARG;
break;
case SR_CONF_SPL_WEIGHT_TIME:
tmp_str = g_variant_get_string(data, NULL);
if (!strcmp(tmp_str, "F"))
ret = cem_dt_885x_weight_time_set(sdi,
SR_MQFLAG_SPL_TIME_WEIGHT_F);
else if (!strcmp(tmp_str, "S"))
ret = cem_dt_885x_weight_time_set(sdi,
SR_MQFLAG_SPL_TIME_WEIGHT_S);
else
return SR_ERR_ARG;
break;
default:
ret = SR_ERR_NA;
}
@ -262,6 +288,9 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
case SR_CONF_SPL_WEIGHT_FREQ:
*data = g_variant_new_strv(weight_freq, ARRAY_SIZE(weight_freq));
break;
case SR_CONF_SPL_WEIGHT_TIME:
*data = g_variant_new_strv(weight_time, ARRAY_SIZE(weight_time));
break;
default:
return SR_ERR_NA;
}

63
hardware/cem-dt-885x/protocol.c
View File

@ -460,3 +460,66 @@ SR_PRIV int cem_dt_885x_weight_freq_set(const struct sr_dev_inst *sdi, int freqw
return ret;
}
SR_PRIV int cem_dt_885x_weight_time_get(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
int cur_setting;
char tokens[5];
devc = sdi->priv;
cur_setting = devc->cur_mqflags & (SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_TIME_WEIGHT_S);
if (cur_setting == 0) {
/* Didn't pick up device state yet. */
tokens[0] = TOKEN_WEIGHT_TIME_FAST;
tokens[1] = TOKEN_WEIGHT_TIME_SLOW;
tokens[2] = -1;
if (wait_for_token(sdi, tokens, 0) != SR_OK)
return SR_ERR;
if (devc->token == TOKEN_WEIGHT_TIME_FAST)
return SR_MQFLAG_SPL_TIME_WEIGHT_F;
else
return SR_MQFLAG_SPL_TIME_WEIGHT_S;
} else
return cur_setting;
}
SR_PRIV int cem_dt_885x_weight_time_set(const struct sr_dev_inst *sdi, int timew)
{
struct dev_context *devc;
int cur_setting, ret;
char tokens[5];
devc = sdi->priv;
cur_setting = devc->cur_mqflags & (SR_MQFLAG_SPL_TIME_WEIGHT_F | SR_MQFLAG_SPL_TIME_WEIGHT_S);
if (cur_setting == timew)
/* Already set to this time weighting. */
return SR_OK;
/* The toggle below needs the desired state in first position. */
if (timew == SR_MQFLAG_SPL_TIME_WEIGHT_F) {
tokens[0] = TOKEN_WEIGHT_TIME_FAST;
tokens[1] = TOKEN_WEIGHT_TIME_SLOW;
} else {
tokens[0] = TOKEN_WEIGHT_TIME_SLOW;
tokens[1] = TOKEN_WEIGHT_TIME_FAST;
}
tokens[2] = -1;
if (cur_setting == 0) {
/* Didn't pick up device state yet. */
if (wait_for_token(sdi, tokens, 0) != SR_OK)
return SR_ERR;
if (devc->token == tokens[0])
/* Nothing to do. */
return SR_OK;
}
/* 51ms timeout seems to work best for this. */
ret = cem_dt_885x_toggle(sdi, CMD_TOGGLE_WEIGHT_TIME, tokens, 51);
return ret;
}

3
hardware/cem-dt-885x/protocol.h
View File

@ -69,6 +69,7 @@ enum {
enum {
CMD_TOGGLE_RECORDING = 0x55,
CMD_TOGGLE_WEIGHT_FREQ = 0x99,
CMD_TOGGLE_WEIGHT_TIME = 0x77,
};
/** Private, per-device-instance driver context. */
@ -107,5 +108,7 @@ SR_PRIV int cem_dt_885x_recording_set(const struct sr_dev_inst *sdi, gboolean st
SR_PRIV gboolean cem_dt_885x_recording_get(const struct sr_dev_inst *sdi);
SR_PRIV int cem_dt_885x_weight_freq_get(const struct sr_dev_inst *sdi);
SR_PRIV int cem_dt_885x_weight_freq_set(const struct sr_dev_inst *sdi, int freqw);
SR_PRIV int cem_dt_885x_weight_time_get(const struct sr_dev_inst *sdi);
SR_PRIV int cem_dt_885x_weight_time_set(const struct sr_dev_inst *sdi, int timew);
#endif