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FMC TDC 1ns 5cha - Software
Commit 99ac1e1c authored by Federico Vaga's avatar Federico Vaga
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lib: export function to set/get buffer lenght/mode 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent 969d7208
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Showing with 121 additions and 1 deletion
lib/fmctdc-lib.c
View file @ 99ac1e1c
......@@ -369,6 +369,112 @@ int fmctdc_set_acquisition(struct fmctdc_board *userb, int on)
return fmctdc_sysfs_set(b, "enable_inputs", &val);
}
/**
* The function returns current buffer mode: 0 for FIFO, 1 for circular buffer.
* @param[in] userb TDC board instance token
* @param[in] channel to use
* @return buffer mode, otherwise a negative errno code is set
* appropriately
*/
int fmctdc_get_buffer_mode(struct fmctdc_board *userb, unsigned int channel)
{
__define_board(b, userb);
uint32_t val;
char attr[64];
int ret;
if (channel >= FMCTDC_NUM_CHANNELS) {
errno = EINVAL;
return -1;
}
snprintf(attr, sizeof(attr), "ft-ch%d/chan0/buffer/prefer-new", channel + 1);
ret = fmctdc_sysfs_get(b, attr, &val);
if (ret)
return ret;
return val;
}
/**
* The function sets the buffer mode for a channel
* @param[in] userb TDC board instance token
* @param[in] channel to use
* @param[in] mode buffer mode to use
* @return 0 on success, otherwise a negative errno code is set
* appropriately
*/
int fmctdc_set_buffer_mode(struct fmctdc_board *userb, unsigned int channel,
enum fmctdc_buffer_mode mode)
{
__define_board(b, userb);
uint32_t val;
char attr[64];
if (channel >= FMCTDC_NUM_CHANNELS) {
errno = EINVAL;
return -1;
}
snprintf(attr, sizeof(attr), "ft-ch%d/chan0/buffer/prefer-new", channel + 1);
val = mode;
return fmctdc_sysfs_set(b, attr, &val);
}
/**
* The function returns current buffer lenght (number of timestamps)
* @param[in] userb TDC board instance token
* @param[in] channel to use
* @return buffer lenght, otherwise a negative errno code is set
* appropriately
*/
int fmctdc_get_buffer_len(struct fmctdc_board *userb, unsigned int channel)
{
__define_board(b, userb);
uint32_t val;
char attr[64];
int ret;
if (channel >= FMCTDC_NUM_CHANNELS) {
errno = EINVAL;
return -1;
}
snprintf(attr, sizeof(attr), "ft-ch%d/chan0/buffer/max-buffer-len",
channel + 1);
ret = fmctdc_sysfs_get(b, attr, &val);
if (ret)
return ret;
return val;
}
/**
* The function set the buffer lenght
* @param[in] userb TDC board instance token
* @param[in] channel to use
* @param[in] lenght maximum number of timestamps to store
* @return 0 on success, otherwise a negative errno code is set
* appropriately
*/
int fmctdc_set_buffer_len(struct fmctdc_board *userb, unsigned int channel,
unsigned int lenght)
{
__define_board(b, userb);
uint32_t val;
char attr[64];
if (channel >= FMCTDC_NUM_CHANNELS) {
errno = EINVAL;
return -1;
}
snprintf(attr, sizeof(attr), "ft-ch%d/chan0/buffer/max-buffer-len", channel + 1);
val = lenght;
return fmctdc_sysfs_set(b, attr, &val);
}
/**
* It opens a TDC channel. Internally, it opens the ZIO control channel
......
lib/fmctdc-lib.h
View file @ 99ac1e1c
......@@ -25,6 +25,11 @@ enum fmctdc_channel {
FMCTDC_NUM_CHANNELS = 5
};
enum fmctdc_buffer_mode {
FMCTDC_BUFFER_FIFO = 0,
FMCTDC_BUFFER_CIRC,
};
/**
* Opaque data type used as token
*/
......@@ -82,7 +87,16 @@ extern int fmctdc_get_acquisition(struct fmctdc_board *b);
extern int fmctdc_set_termination(struct fmctdc_board *b, unsigned int channel,
int enable);
extern int fmctdc_get_termination(struct fmctdc_board *b, unsigned int channel);
extern int fmctdc_get_buffer_mode(struct fmctdc_board *userb,
unsigned int channel);
extern int fmctdc_set_buffer_mode(struct fmctdc_board *userb,
unsigned int channel,
enum fmctdc_buffer_mode mode);
extern int fmctdc_get_buffer_len(struct fmctdc_board *userb,
unsigned int channel);
extern int fmctdc_set_buffer_len(struct fmctdc_board *userb,
unsigned int channel,
unsigned int lenght);
extern int fmctdc_fread(struct fmctdc_board *b, unsigned int channel,
struct fmctdc_time *t, int n);
extern int fmctdc_fileno_channel(struct fmctdc_board *b, unsigned int channel);
......
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