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FMC TDC 1ns 5cha - Software
Commit aa3a6e15 authored by Federico Vaga's avatar Federico Vaga
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lib: enable standard zio channel 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent 037b748b
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Showing with 87 additions and 25 deletions
lib/fmctdc-lib.c
View file @ aa3a6e15
......@@ -334,18 +334,27 @@ int fmctdc_get_termination(struct fmctdc_board *userb, unsigned int channel)
/**
* It gets the acquisition status of a TDC device
* It gets the acquisition status of a TDC channel
* @param[in] userb TDC board instance token
* @param[in] channel channel to which we want read the status
* @return the acquisition status (0 disabled, 1 enabled), otherwise -1 and
* errno is set appropriately
*/
int fmctdc_get_acquisition(struct fmctdc_board *userb)
int fmctdc_channel_status_get(struct fmctdc_board *userb, unsigned int channel)
{
__define_board(b, userb);
uint32_t val;
char attr[64];
int ret;
ret = fmctdc_sysfs_get(b, "enable_inputs", &val);
if (channel >= FMCTDC_NUM_CHANNELS) {
errno = EINVAL;
return -1;
}
snprintf(attr, sizeof(attr), "ft-ch%d/enable", channel + 1);
ret = fmctdc_sysfs_get(b, attr, &val);
if (ret)
return ret;
return val;
......@@ -353,22 +362,51 @@ int fmctdc_get_acquisition(struct fmctdc_board *userb)
/**
* The function globally enables/disables timestamp acquisition for the given
* mezzanine. Due to limitations in the gateware, it is not possible to
* enable/disable channels individually. Certain operations such as setting
* board's time require acquisition to be disabled. Disabling acqusition also
* clears all timestamp buffers and resets sequence IDs of the timestamps.
* The function enables/disables timestamp acquisition for the given channel.
* @param[in] userb TDC board instance token
* @param[in] on acquisition status to set (0 disable, 1 enable)
* @param[in] channel channel to which we want change status
* @param[in] status enable status to set
* @return 0 on success, otherwise -1 and errno is set appropriately
*/
int fmctdc_set_acquisition(struct fmctdc_board *userb, int on)
int fmctdc_channel_status_set(struct fmctdc_board *userb, unsigned int channel,
enum fmctdc_channel_status status)
{
__define_board(b, userb);
uint32_t val;
uint32_t val = status;
char attr[64];
val = on ? 1 : 0;
return fmctdc_sysfs_set(b, "enable_inputs", &val);
if (channel >= FMCTDC_NUM_CHANNELS) {
errno = EINVAL;
return -1;
}
snprintf(attr, sizeof(attr), "ft-ch%d/enable", channel + 1);
return fmctdc_sysfs_set(b, attr, &val);
}
/**
* It enables a given channel.
* NOTE: it is just a wrapper of fmctdc_channel_status_set()
* @param[in] userb TDC board instance token
* @param[in] channel channel to which we want change status
* @return 0 on success, otherwise -1 and errno is set appropriately
*/
int fmctdc_channel_enable(struct fmctdc_board *userb, unsigned int channel)
{
return fmctdc_channel_status_set(userb, channel, FMCTDC_STATUS_ENABLE);
}
/**
* It disable a given channel.
* NOTE: it is just a wrapper of fmctdc_channel_status_set()
* @param[in] userb TDC board instance token
* @param[in] channel channel to which we want change status
* @return 0 on success, otherwise -1 and errno is set appropriately
*/
int fmctdc_channel_disable(struct fmctdc_board *userb, unsigned int channel)
{
return fmctdc_channel_status_set(userb, channel, FMCTDC_STATUS_DISABLE);
}
/**
......@@ -813,12 +851,12 @@ int fmctdc_flush(struct fmctdc_board *userb, unsigned int channel)
errno = EINVAL;
return -1;
}
en = fmctdc_get_acquisition(userb);
en = fmctdc_channel_status_get(userb, channel);
if (en < 0)
return -1;
/* Disable acquisition, it will flush the hw buffer */
err = fmctdc_set_acquisition(userb, 0);
err = fmctdc_channel_status_set(userb, channel, FMCTDC_STATUS_DISABLE);
if (err)
return err;
......@@ -830,5 +868,5 @@ int fmctdc_flush(struct fmctdc_board *userb, unsigned int channel)
}
/* Re-enable if it was enable */
return fmctdc_set_acquisition(userb, en);
return fmctdc_channel_status_set(userb, channel, en);
}
lib/fmctdc-lib.h
View file @ aa3a6e15
......@@ -30,6 +30,11 @@ enum fmctdc_buffer_mode {
FMCTDC_BUFFER_CIRC,
};
enum fmctdc_channel_status {
FMCTDC_STATUS_DISABLE = 0,
FMCTDC_STATUS_ENABLE,
};
/**
* Opaque data type used as token
*/
......@@ -81,8 +86,15 @@ extern int fmctdc_set_time(struct fmctdc_board *b, struct fmctdc_time *t);
extern int fmctdc_get_time(struct fmctdc_board *b, struct fmctdc_time *t);
extern int fmctdc_set_host_time(struct fmctdc_board *b);
extern int fmctdc_set_acquisition(struct fmctdc_board *b, int enable);
extern int fmctdc_get_acquisition(struct fmctdc_board *b);
extern int fmctdc_channel_status_set(struct fmctdc_board *userb,
unsigned int channel,
enum fmctdc_channel_status status);
extern int fmctdc_channel_enable(struct fmctdc_board *userb,
unsigned int channel);
extern int fmctdc_channel_disable(struct fmctdc_board *userb,
unsigned int channel);
extern int fmctdc_channel_status_get(struct fmctdc_board *userb,
unsigned int channel);
extern int fmctdc_set_termination(struct fmctdc_board *b, unsigned int channel,
int enable);
......
tools/Makefile
View file @ aa3a6e15
......@@ -9,7 +9,6 @@ LIBTDC = ../lib/
TESTS = fmc-tdc-list \
fmc-tdc-term \
fmc-tdc-acquisition \
fmc-tdc-temperature \
fmc-tdc-time \
fmc-tdc-tstamp
......
tools/fmc-tdc-tstamp.c
View file @ aa3a6e15
......@@ -262,6 +262,12 @@ int main(int argc, char **argv)
"%s: chan %d: cannot set buffer lenght: %s. Use default\n",
argv[0], ch, fmctdc_strerror(errno));
}
if (!read)
ret = fmctdc_channel_enable(brd, i);
if (ret)
fprintf(stderr,
"%s: chan %d: cannot enable acquisition: %s.\n",
argv[0], i, fmctdc_strerror(errno));
chan_count++;
optind++;
}
......@@ -297,14 +303,18 @@ int main(int argc, char **argv)
"%s: chan %d: cannot set buffer lenght: %s. Use default\n",
argv[0], i, fmctdc_strerror(errno));
}
if (!read)
ret = fmctdc_channel_enable(brd, i);
if (ret)
fprintf(stderr,
"%s: chan %d: cannot enable acquisition: %s.\n",
argv[0], i, fmctdc_strerror(errno));
}
chan_count = i;
}
/* Enable acquisition */
if (!read)
fmctdc_set_acquisition(brd, 1);
/* Read Time-Stamps */
n = 0;
while ((n < n_samples || n_samples <= 0) && (!stop)) {
......@@ -359,10 +369,13 @@ int main(int argc, char **argv)
for (i = 0; i <= FMCTDC_CH_LAST; i++) {
if (channels[i] > 0)
fmctdc_reference_clear(brd, -1);
if (!read)
ret = fmctdc_channel_disable(brd, i);
if (ret)
fprintf(stderr,
"%s: chan %d: cannot disable acquisition: %s.\n",
argv[0], i, fmctdc_strerror(errno));
}
/* Disable acquisition */
if (!read)
fmctdc_set_acquisition(brd, 0);
fmctdc_close(brd);
exit(EXIT_SUCCESS);
......
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