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servo: store the configuration in the servo data structure. 

This will allow removing the code that passes configuration options via
global variables.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
master
Richard Cochran 2015-08-11 22:18:20 +02:00
parent a4329f7873
commit bde8ef4360
4 changed files with 10 additions and 5 deletions
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4
clock.c
View File

@ -866,7 +866,7 @@ struct clock *clock_create(struct config *config, int phc_index,
the actual frequency of the clock. */
clockadj_set_freq(c->clkid, fadj);
}
c->servo = servo_create(servo, -fadj, max_adj, sw_ts);
c->servo = servo_create(c->config, servo, -fadj, max_adj, sw_ts);
if (!c->servo) {
pr_err("Failed to create clock servo");
return NULL;
@ -1356,7 +1356,7 @@ int clock_switch_phc(struct clock *c, int phc_index)
}
fadj = (int) clockadj_get_freq(clkid);
clockadj_set_freq(clkid, fadj);
servo = servo_create(c->servo_type, -fadj, max_adj, 0);
servo = servo_create(c->config, c->servo_type, -fadj, max_adj, 0);
if (!servo) {
pr_err("Switching PHC, failed to create clock servo");
phc_close(clkid);

3
phc2sys.c
View File

@ -224,7 +224,8 @@ static struct clock *clock_add(struct node *node, char *device)
}
}
c->servo = servo_create(node->servo_type, -ppb, max_ppb, 0);
c->servo = servo_create(&phc2sys_config, node->servo_type,
-ppb, max_ppb, 0);
servo_sync_interval(c->servo, node->phc_interval);
if (clkid != CLOCK_REALTIME)

3
servo.c
View File

@ -30,7 +30,8 @@ double servo_step_threshold = 0.0;
double servo_first_step_threshold = 0.00002; /* 20 microseconds */
int servo_max_frequency = 900000000;
struct servo *servo_create(enum servo_type type, int fadj, int max_ppb, int sw_ts)
struct servo *servo_create(struct config *cfg, enum servo_type type,
int fadj, int max_ppb, int sw_ts)
{
struct servo *servo;

5
servo.h
View File

@ -22,6 +22,8 @@
#include <stdint.h>
struct config;
/**
* When set to a non-zero value, this variable controls the maximum allowed
* offset before a clock jump occurs instead of the default clock-slewing
@ -92,7 +94,8 @@ enum servo_state {
* and the servo should use more aggressive filtering.
* @return A pointer to a new servo on success, NULL otherwise.
*/
struct servo *servo_create(enum servo_type type, int fadj, int max_ppb, int sw_ts);
struct servo *servo_create(struct config *cfg, enum servo_type type,
int fadj, int max_ppb, int sw_ts);
/**
* Destroy an instance of a clock servo.