[U-Boot] [PATCH 01/15] log: Add helpers for common log levels

[Simon Glass <sjg@chromium.org>]

At present to output a log message you need something like:

   log(UCLASS_SPI, LOCL_INFO, "message1");
   log(UCLASS_SPI, LOCL_INFO, "message2");

but many files use the same category throughout. Also it is helpful to
shorten the length of log names, providing helpers for common logging
levels. Add some macros so that it is possible to do:

   (top of file, before #includes)
   #define LOG_CATEGORY UCLASS_SPI

   (later in the file)
   log_info("message1");
   log_debug("message2");
   log_err("message3");

Signed-off-by: Simon Glass <sjg@chromium.org>
---

 include/log.h             | 14 ++++++++++++++
 test/log/log_test.c       | 13 +++++++++++++
 test/py/tests/test_log.py |  6 ++++++
 3 files changed, 33 insertions(+)

diff --git a/include/log.h b/include/log.h
index 61411b72eac..12168340d12 100644
--- a/include/log.h
+++ b/include/log.h
@@ -103,8 +103,22 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
 		      __func__, \
 		      pr_fmt(_fmt), ##_args); \
 	})
+#define log_err(_fmt...)	log(LOG_CATEGORY, LOGL_ERR, ##_fmt)
+#define log_warning(_fmt...)	log(LOG_CATEGORY, LOGL_WARNING, ##_fmt)
+#define log_notice(_fmt...)	log(LOG_CATEGORY, LOGL_NOTICE, ##_fmt)
+#define log_info(_fmt...)	log(LOG_CATEGORY, LOGL_INFO, ##_fmt)
+#define log_debug(_fmt...)	log(LOG_CATEGORY, LOGL_DEBUG, ##_fmt)
+#define log_content(_fmt...)	log(LOG_CATEGORY, LOGL_DEBUG_CONTENT, ##_fmt)
+#define log_io(_fmt...)		log(LOG_CATEGORY, LOGL_DEBUG_IO, ##_fmt)
 #else
 #define log(_cat, _level, _fmt, _args...)
+#define log_err(_fmt...)
+#define log_warning(_fmt...)
+#define log_notice(_fmt...)
+#define log_info(_fmt...)
+#define log_debug(_fmt...)
+#define log_content(_fmt...)
+#define log_io(_fmt...)
 #endif
 
 #ifdef DEBUG
diff --git a/test/log/log_test.c b/test/log/log_test.c
index de431b0823e..febc2c1252a 100644
--- a/test/log/log_test.c
+++ b/test/log/log_test.c
@@ -181,6 +181,19 @@ static int log_test(int testnum)
 			return ret;
 		break;
 	}
+	case 10: {
+		log_err("level %d\n", LOGL_EMERG);
+		log_err("level %d\n", LOGL_ALERT);
+		log_err("level %d\n", LOGL_CRIT);
+		log_err("level %d\n", LOGL_ERR);
+		log_warning("level %d\n", LOGL_WARNING);
+		log_notice("level %d\n", LOGL_NOTICE);
+		log_info("level %d\n", LOGL_INFO);
+		log_debug("level %d\n", LOGL_DEBUG);
+		log_content("level %d\n", LOGL_DEBUG_CONTENT);
+		log_io("level %d\n", LOGL_DEBUG_IO);
+		break;
+	}
 	}
 
 	return 0;
diff --git a/test/py/tests/test_log.py b/test/py/tests/test_log.py
index 605275b0399..cb183444c6f 100644
--- a/test/py/tests/test_log.py
+++ b/test/py/tests/test_log.py
@@ -85,6 +85,11 @@ def test_log(u_boot_console):
         lines = run_test(9)
         check_log_entries(lines, 3)
 
+    def test10():
+        lines = run_test(10)
+        for i in range(7):
+            assert 'log_test() level %d' % i == lines.next()
+
     # TODO(sjg at chromium.org): Consider structuring this as separate tests
     cons = u_boot_console
     test0()
@@ -97,6 +102,7 @@ def test_log(u_boot_console):
     test7()
     test8()
     test9()
+    test10()
 
 @pytest.mark.buildconfigspec('cmd_log')
 def test_log_format(u_boot_console):
-- 
2.19.0.605.g01d371f741-goog