[PATCH 7/8] samples: move timers example code from Documentation
Shuah Khan
shuahkh at osg.samsung.com
Mon Sep 19 07:47:38 PDT 2016
Move timers examples to samples and remove it from Documentation
Makefile. Create a new Makefile to build timers. It can be built
from top level directory or from timers directory:
Run make -C samples/timers or cd samples/timers; make
Signed-off-by: Shuah Khan <shuahkh at osg.samsung.com>
---
Documentation/Makefile | 2 +-
Documentation/timers/.gitignore | 1 -
Documentation/timers/Makefile | 5 -
Documentation/timers/hpet_example.c | 294 ------------------------------------
samples/timers/.gitignore | 1 +
samples/timers/Makefile | 15 ++
samples/timers/hpet_example.c | 294 ++++++++++++++++++++++++++++++++++++
7 files changed, 311 insertions(+), 301 deletions(-)
delete mode 100644 Documentation/timers/.gitignore
delete mode 100644 Documentation/timers/Makefile
delete mode 100644 Documentation/timers/hpet_example.c
create mode 100644 samples/timers/.gitignore
create mode 100644 samples/timers/Makefile
create mode 100644 samples/timers/hpet_example.c
diff --git a/Documentation/Makefile b/Documentation/Makefile
index bd5f115..9c3fe11 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -1 +1 @@
-subdir-y := blackfin timers watchdog
+subdir-y := blackfin watchdog
diff --git a/Documentation/timers/.gitignore b/Documentation/timers/.gitignore
deleted file mode 100644
index c5c45d7..0000000
--- a/Documentation/timers/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-hpet_example
diff --git a/Documentation/timers/Makefile b/Documentation/timers/Makefile
deleted file mode 100644
index 6c09ee6..0000000
--- a/Documentation/timers/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# List of programs to build
-hostprogs-$(CONFIG_X86) := hpet_example
-
-# Tell kbuild to always build the programs
-always := $(hostprogs-y)
diff --git a/Documentation/timers/hpet_example.c b/Documentation/timers/hpet_example.c
deleted file mode 100644
index 3ab4993..0000000
--- a/Documentation/timers/hpet_example.c
+++ /dev/null
@@ -1,294 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-#include <memory.h>
-#include <malloc.h>
-#include <time.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <linux/hpet.h>
-
-
-extern void hpet_open_close(int, const char **);
-extern void hpet_info(int, const char **);
-extern void hpet_poll(int, const char **);
-extern void hpet_fasync(int, const char **);
-extern void hpet_read(int, const char **);
-
-#include <sys/poll.h>
-#include <sys/ioctl.h>
-
-struct hpet_command {
- char *command;
- void (*func)(int argc, const char ** argv);
-} hpet_command[] = {
- {
- "open-close",
- hpet_open_close
- },
- {
- "info",
- hpet_info
- },
- {
- "poll",
- hpet_poll
- },
- {
- "fasync",
- hpet_fasync
- },
-};
-
-int
-main(int argc, const char ** argv)
-{
- unsigned int i;
-
- argc--;
- argv++;
-
- if (!argc) {
- fprintf(stderr, "-hpet: requires command\n");
- return -1;
- }
-
-
- for (i = 0; i < (sizeof (hpet_command) / sizeof (hpet_command[0])); i++)
- if (!strcmp(argv[0], hpet_command[i].command)) {
- argc--;
- argv++;
- fprintf(stderr, "-hpet: executing %s\n",
- hpet_command[i].command);
- hpet_command[i].func(argc, argv);
- return 0;
- }
-
- fprintf(stderr, "do_hpet: command %s not implemented\n", argv[0]);
-
- return -1;
-}
-
-void
-hpet_open_close(int argc, const char **argv)
-{
- int fd;
-
- if (argc != 1) {
- fprintf(stderr, "hpet_open_close: device-name\n");
- return;
- }
-
- fd = open(argv[0], O_RDONLY);
- if (fd < 0)
- fprintf(stderr, "hpet_open_close: open failed\n");
- else
- close(fd);
-
- return;
-}
-
-void
-hpet_info(int argc, const char **argv)
-{
- struct hpet_info info;
- int fd;
-
- if (argc != 1) {
- fprintf(stderr, "hpet_info: device-name\n");
- return;
- }
-
- fd = open(argv[0], O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "hpet_info: open of %s failed\n", argv[0]);
- return;
- }
-
- if (ioctl(fd, HPET_INFO, &info) < 0) {
- fprintf(stderr, "hpet_info: failed to get info\n");
- goto out;
- }
-
- fprintf(stderr, "hpet_info: hi_irqfreq 0x%lx hi_flags 0x%lx ",
- info.hi_ireqfreq, info.hi_flags);
- fprintf(stderr, "hi_hpet %d hi_timer %d\n",
- info.hi_hpet, info.hi_timer);
-
-out:
- close(fd);
- return;
-}
-
-void
-hpet_poll(int argc, const char **argv)
-{
- unsigned long freq;
- int iterations, i, fd;
- struct pollfd pfd;
- struct hpet_info info;
- struct timeval stv, etv;
- struct timezone tz;
- long usec;
-
- if (argc != 3) {
- fprintf(stderr, "hpet_poll: device-name freq iterations\n");
- return;
- }
-
- freq = atoi(argv[1]);
- iterations = atoi(argv[2]);
-
- fd = open(argv[0], O_RDONLY);
-
- if (fd < 0) {
- fprintf(stderr, "hpet_poll: open of %s failed\n", argv[0]);
- return;
- }
-
- if (ioctl(fd, HPET_IRQFREQ, freq) < 0) {
- fprintf(stderr, "hpet_poll: HPET_IRQFREQ failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_INFO, &info) < 0) {
- fprintf(stderr, "hpet_poll: failed to get info\n");
- goto out;
- }
-
- fprintf(stderr, "hpet_poll: info.hi_flags 0x%lx\n", info.hi_flags);
-
- if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) {
- fprintf(stderr, "hpet_poll: HPET_EPI failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_IE_ON, 0) < 0) {
- fprintf(stderr, "hpet_poll, HPET_IE_ON failed\n");
- goto out;
- }
-
- pfd.fd = fd;
- pfd.events = POLLIN;
-
- for (i = 0; i < iterations; i++) {
- pfd.revents = 0;
- gettimeofday(&stv, &tz);
- if (poll(&pfd, 1, -1) < 0)
- fprintf(stderr, "hpet_poll: poll failed\n");
- else {
- long data;
-
- gettimeofday(&etv, &tz);
- usec = stv.tv_sec * 1000000 + stv.tv_usec;
- usec = (etv.tv_sec * 1000000 + etv.tv_usec) - usec;
-
- fprintf(stderr,
- "hpet_poll: expired time = 0x%lx\n", usec);
-
- fprintf(stderr, "hpet_poll: revents = 0x%x\n",
- pfd.revents);
-
- if (read(fd, &data, sizeof(data)) != sizeof(data)) {
- fprintf(stderr, "hpet_poll: read failed\n");
- }
- else
- fprintf(stderr, "hpet_poll: data 0x%lx\n",
- data);
- }
- }
-
-out:
- close(fd);
- return;
-}
-
-static int hpet_sigio_count;
-
-static void
-hpet_sigio(int val)
-{
- fprintf(stderr, "hpet_sigio: called\n");
- hpet_sigio_count++;
-}
-
-void
-hpet_fasync(int argc, const char **argv)
-{
- unsigned long freq;
- int iterations, i, fd, value;
- sig_t oldsig;
- struct hpet_info info;
-
- hpet_sigio_count = 0;
- fd = -1;
-
- if ((oldsig = signal(SIGIO, hpet_sigio)) == SIG_ERR) {
- fprintf(stderr, "hpet_fasync: failed to set signal handler\n");
- return;
- }
-
- if (argc != 3) {
- fprintf(stderr, "hpet_fasync: device-name freq iterations\n");
- goto out;
- }
-
- fd = open(argv[0], O_RDONLY);
-
- if (fd < 0) {
- fprintf(stderr, "hpet_fasync: failed to open %s\n", argv[0]);
- return;
- }
-
-
- if ((fcntl(fd, F_SETOWN, getpid()) == 1) ||
- ((value = fcntl(fd, F_GETFL)) == 1) ||
- (fcntl(fd, F_SETFL, value | O_ASYNC) == 1)) {
- fprintf(stderr, "hpet_fasync: fcntl failed\n");
- goto out;
- }
-
- freq = atoi(argv[1]);
- iterations = atoi(argv[2]);
-
- if (ioctl(fd, HPET_IRQFREQ, freq) < 0) {
- fprintf(stderr, "hpet_fasync: HPET_IRQFREQ failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_INFO, &info) < 0) {
- fprintf(stderr, "hpet_fasync: failed to get info\n");
- goto out;
- }
-
- fprintf(stderr, "hpet_fasync: info.hi_flags 0x%lx\n", info.hi_flags);
-
- if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) {
- fprintf(stderr, "hpet_fasync: HPET_EPI failed\n");
- goto out;
- }
-
- if (ioctl(fd, HPET_IE_ON, 0) < 0) {
- fprintf(stderr, "hpet_fasync, HPET_IE_ON failed\n");
- goto out;
- }
-
- for (i = 0; i < iterations; i++) {
- (void) pause();
- fprintf(stderr, "hpet_fasync: count = %d\n", hpet_sigio_count);
- }
-
-out:
- signal(SIGIO, oldsig);
-
- if (fd >= 0)
- close(fd);
-
- return;
-}
diff --git a/samples/timers/.gitignore b/samples/timers/.gitignore
new file mode 100644
index 0000000..c5c45d7
--- /dev/null
+++ b/samples/timers/.gitignore
@@ -0,0 +1 @@
+hpet_example
diff --git a/samples/timers/Makefile b/samples/timers/Makefile
new file mode 100644
index 0000000..a5c3c4a
--- /dev/null
+++ b/samples/timers/Makefile
@@ -0,0 +1,15 @@
+ifndef CROSS_COMPILE
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
+
+ifeq ($(ARCH),x86)
+CC := $(CROSS_COMPILE)gcc
+PROGS := hpet_example
+
+all: $(PROGS)
+
+clean:
+ rm -fr $(PROGS)
+
+endif
+endif
diff --git a/samples/timers/hpet_example.c b/samples/timers/hpet_example.c
new file mode 100644
index 0000000..3ab4993
--- /dev/null
+++ b/samples/timers/hpet_example.c
@@ -0,0 +1,294 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <memory.h>
+#include <malloc.h>
+#include <time.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <linux/hpet.h>
+
+
+extern void hpet_open_close(int, const char **);
+extern void hpet_info(int, const char **);
+extern void hpet_poll(int, const char **);
+extern void hpet_fasync(int, const char **);
+extern void hpet_read(int, const char **);
+
+#include <sys/poll.h>
+#include <sys/ioctl.h>
+
+struct hpet_command {
+ char *command;
+ void (*func)(int argc, const char ** argv);
+} hpet_command[] = {
+ {
+ "open-close",
+ hpet_open_close
+ },
+ {
+ "info",
+ hpet_info
+ },
+ {
+ "poll",
+ hpet_poll
+ },
+ {
+ "fasync",
+ hpet_fasync
+ },
+};
+
+int
+main(int argc, const char ** argv)
+{
+ unsigned int i;
+
+ argc--;
+ argv++;
+
+ if (!argc) {
+ fprintf(stderr, "-hpet: requires command\n");
+ return -1;
+ }
+
+
+ for (i = 0; i < (sizeof (hpet_command) / sizeof (hpet_command[0])); i++)
+ if (!strcmp(argv[0], hpet_command[i].command)) {
+ argc--;
+ argv++;
+ fprintf(stderr, "-hpet: executing %s\n",
+ hpet_command[i].command);
+ hpet_command[i].func(argc, argv);
+ return 0;
+ }
+
+ fprintf(stderr, "do_hpet: command %s not implemented\n", argv[0]);
+
+ return -1;
+}
+
+void
+hpet_open_close(int argc, const char **argv)
+{
+ int fd;
+
+ if (argc != 1) {
+ fprintf(stderr, "hpet_open_close: device-name\n");
+ return;
+ }
+
+ fd = open(argv[0], O_RDONLY);
+ if (fd < 0)
+ fprintf(stderr, "hpet_open_close: open failed\n");
+ else
+ close(fd);
+
+ return;
+}
+
+void
+hpet_info(int argc, const char **argv)
+{
+ struct hpet_info info;
+ int fd;
+
+ if (argc != 1) {
+ fprintf(stderr, "hpet_info: device-name\n");
+ return;
+ }
+
+ fd = open(argv[0], O_RDONLY);
+ if (fd < 0) {
+ fprintf(stderr, "hpet_info: open of %s failed\n", argv[0]);
+ return;
+ }
+
+ if (ioctl(fd, HPET_INFO, &info) < 0) {
+ fprintf(stderr, "hpet_info: failed to get info\n");
+ goto out;
+ }
+
+ fprintf(stderr, "hpet_info: hi_irqfreq 0x%lx hi_flags 0x%lx ",
+ info.hi_ireqfreq, info.hi_flags);
+ fprintf(stderr, "hi_hpet %d hi_timer %d\n",
+ info.hi_hpet, info.hi_timer);
+
+out:
+ close(fd);
+ return;
+}
+
+void
+hpet_poll(int argc, const char **argv)
+{
+ unsigned long freq;
+ int iterations, i, fd;
+ struct pollfd pfd;
+ struct hpet_info info;
+ struct timeval stv, etv;
+ struct timezone tz;
+ long usec;
+
+ if (argc != 3) {
+ fprintf(stderr, "hpet_poll: device-name freq iterations\n");
+ return;
+ }
+
+ freq = atoi(argv[1]);
+ iterations = atoi(argv[2]);
+
+ fd = open(argv[0], O_RDONLY);
+
+ if (fd < 0) {
+ fprintf(stderr, "hpet_poll: open of %s failed\n", argv[0]);
+ return;
+ }
+
+ if (ioctl(fd, HPET_IRQFREQ, freq) < 0) {
+ fprintf(stderr, "hpet_poll: HPET_IRQFREQ failed\n");
+ goto out;
+ }
+
+ if (ioctl(fd, HPET_INFO, &info) < 0) {
+ fprintf(stderr, "hpet_poll: failed to get info\n");
+ goto out;
+ }
+
+ fprintf(stderr, "hpet_poll: info.hi_flags 0x%lx\n", info.hi_flags);
+
+ if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) {
+ fprintf(stderr, "hpet_poll: HPET_EPI failed\n");
+ goto out;
+ }
+
+ if (ioctl(fd, HPET_IE_ON, 0) < 0) {
+ fprintf(stderr, "hpet_poll, HPET_IE_ON failed\n");
+ goto out;
+ }
+
+ pfd.fd = fd;
+ pfd.events = POLLIN;
+
+ for (i = 0; i < iterations; i++) {
+ pfd.revents = 0;
+ gettimeofday(&stv, &tz);
+ if (poll(&pfd, 1, -1) < 0)
+ fprintf(stderr, "hpet_poll: poll failed\n");
+ else {
+ long data;
+
+ gettimeofday(&etv, &tz);
+ usec = stv.tv_sec * 1000000 + stv.tv_usec;
+ usec = (etv.tv_sec * 1000000 + etv.tv_usec) - usec;
+
+ fprintf(stderr,
+ "hpet_poll: expired time = 0x%lx\n", usec);
+
+ fprintf(stderr, "hpet_poll: revents = 0x%x\n",
+ pfd.revents);
+
+ if (read(fd, &data, sizeof(data)) != sizeof(data)) {
+ fprintf(stderr, "hpet_poll: read failed\n");
+ }
+ else
+ fprintf(stderr, "hpet_poll: data 0x%lx\n",
+ data);
+ }
+ }
+
+out:
+ close(fd);
+ return;
+}
+
+static int hpet_sigio_count;
+
+static void
+hpet_sigio(int val)
+{
+ fprintf(stderr, "hpet_sigio: called\n");
+ hpet_sigio_count++;
+}
+
+void
+hpet_fasync(int argc, const char **argv)
+{
+ unsigned long freq;
+ int iterations, i, fd, value;
+ sig_t oldsig;
+ struct hpet_info info;
+
+ hpet_sigio_count = 0;
+ fd = -1;
+
+ if ((oldsig = signal(SIGIO, hpet_sigio)) == SIG_ERR) {
+ fprintf(stderr, "hpet_fasync: failed to set signal handler\n");
+ return;
+ }
+
+ if (argc != 3) {
+ fprintf(stderr, "hpet_fasync: device-name freq iterations\n");
+ goto out;
+ }
+
+ fd = open(argv[0], O_RDONLY);
+
+ if (fd < 0) {
+ fprintf(stderr, "hpet_fasync: failed to open %s\n", argv[0]);
+ return;
+ }
+
+
+ if ((fcntl(fd, F_SETOWN, getpid()) == 1) ||
+ ((value = fcntl(fd, F_GETFL)) == 1) ||
+ (fcntl(fd, F_SETFL, value | O_ASYNC) == 1)) {
+ fprintf(stderr, "hpet_fasync: fcntl failed\n");
+ goto out;
+ }
+
+ freq = atoi(argv[1]);
+ iterations = atoi(argv[2]);
+
+ if (ioctl(fd, HPET_IRQFREQ, freq) < 0) {
+ fprintf(stderr, "hpet_fasync: HPET_IRQFREQ failed\n");
+ goto out;
+ }
+
+ if (ioctl(fd, HPET_INFO, &info) < 0) {
+ fprintf(stderr, "hpet_fasync: failed to get info\n");
+ goto out;
+ }
+
+ fprintf(stderr, "hpet_fasync: info.hi_flags 0x%lx\n", info.hi_flags);
+
+ if (info.hi_flags && (ioctl(fd, HPET_EPI, 0) < 0)) {
+ fprintf(stderr, "hpet_fasync: HPET_EPI failed\n");
+ goto out;
+ }
+
+ if (ioctl(fd, HPET_IE_ON, 0) < 0) {
+ fprintf(stderr, "hpet_fasync, HPET_IE_ON failed\n");
+ goto out;
+ }
+
+ for (i = 0; i < iterations; i++) {
+ (void) pause();
+ fprintf(stderr, "hpet_fasync: count = %d\n", hpet_sigio_count);
+ }
+
+out:
+ signal(SIGIO, oldsig);
+
+ if (fd >= 0)
+ close(fd);
+
+ return;
+}
--
2.7.4
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