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authorAaron Durbin <adurbin@chromium.org>2014-09-23 16:34:40 -0500
committerPatrick Georgi <pgeorgi@google.com>2015-03-21 17:00:40 +0100
commit46ba4807e926720b8361a4e271cb1fa022f5abc5 (patch)
tree9bd7d58985c618b8ff2afd14ffbd154fa88c0b83 /src/device
parentad5a909740720931849a9565730209ad97ad48f5 (diff)
device: convert to stopwatch API
Instead of open coding the monotonic timers use the stopwatch abstraction. BUG=None BRANCH=None TEST=Booted and noted timings work as expected. Built with software_i2c and no compilation failures. Change-Id: Ie5ecdd5bc764c1ab8ba4a923e65a1666aacd22f7 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: c7bffb5aeb41e9b88cd2c99edd6abc38f1dc90af Original-Change-Id: I0170fe4b93d9976957a2dcb00a6ea41ddc0320ce Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/219495 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/8817 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/device')
-rw-r--r--src/device/device.c9
-rw-r--r--src/device/software_i2c.c11
2 files changed, 9 insertions, 11 deletions
diff --git a/src/device/device.c b/src/device/device.c
index 00e323a668..b3b8d241a7 100644
--- a/src/device/device.c
+++ b/src/device/device.c
@@ -1139,10 +1139,8 @@ static void init_dev(struct device *dev)
if (!dev->initialized && dev->ops && dev->ops->init) {
#if CONFIG_HAVE_MONOTONIC_TIMER
- struct mono_time start_time;
- struct rela_time dev_init_time;
-
- timer_monotonic_get(&start_time);
+ struct stopwatch sw;
+ stopwatch_init(&sw);
#endif
if (dev->path.type == DEVICE_PATH_I2C) {
printk(BIOS_DEBUG, "smbus: %s[%d]->",
@@ -1153,9 +1151,8 @@ static void init_dev(struct device *dev)
dev->initialized = 1;
dev->ops->init(dev);
#if CONFIG_HAVE_MONOTONIC_TIMER
- dev_init_time = current_time_from(&start_time);
printk(BIOS_DEBUG, "%s init %ld usecs\n", dev_path(dev),
- rela_time_in_microseconds(&dev_init_time));
+ stopwatch_duration_usecs(&sw));
#endif
}
}
diff --git a/src/device/software_i2c.c b/src/device/software_i2c.c
index 6c9c200dc7..518aa5faf7 100644
--- a/src/device/software_i2c.c
+++ b/src/device/software_i2c.c
@@ -44,20 +44,21 @@ static int __wait(unsigned bus, int timeout_us, int for_scl)
int us;
int sda = software_i2c[bus]->get_sda(bus);
int scl = software_i2c[bus]->get_scl(bus);
- struct mono_time start;
- timer_monotonic_get(&start);
+ struct stopwatch sw;
+
+ stopwatch_init_usecs_expire(&sw, timeout_us);
do {
int old_sda = sda;
int old_scl = scl;
- struct rela_time diff = current_time_from(&start);
- us = rela_time_in_microseconds(&diff);
+
+ us = stopwatch_duration_usecs(&sw);
if (old_sda != (sda = software_i2c[bus]->get_sda(bus)))
spew("[SDA transitioned to %d after %dus] ", sda, us);
if (old_scl != (scl = software_i2c[bus]->get_scl(bus)))
spew("[SCL transitioned to %d after %dus] ", scl, us);
- } while (us < timeout_us && (!for_scl || !scl));
+ } while (!stopwatch_expired(&sw) && (!for_scl || !scl));
return scl;
}