Merge pull request #6170 from haukepetersen/add_periph_romaddrtopage

drivers/flashrom: added addr-to-page function

cpu/lpc11u34/include/cpu_conf.h

@@ -35,7 +35,7 @@ extern "C" {
  */
 #define CPU_DEFAULT_IRQ_PRIO            (1U)
 #define CPU_IRQ_NUMOF                   (35U)
-#define CPU_FLASH_BASE                  LPC_FLASH_BASE
+#define CPU_FLASH_BASE                  (0)
 /** @} */
 
 #ifdef __cplusplus

drivers/include/periph/flashpage.h

@@ -81,6 +81,22 @@ static inline void *flashpage_addr(int page)
     return (void *)(CPU_FLASH_BASE + (page * FLASHPAGE_SIZE));
 }
 
+/**
+ * @brief   Translate the given address into the corresponding page number
+ *
+ * The given address can be any address inside a page.
+ *
+ * @note    The given address MUST be a valid flash address!
+ *
+ * @param[in] addr      address inside the targeted page
+ *
+ * @return              page containing the given address
+ */
+static inline int flashpage_page(void *addr)
+{
+    return (int)(((int)addr - CPU_FLASH_BASE) / FLASHPAGE_SIZE);
+}
+
 /**
  * @brief   Write the given page with the given data
  *

tests/unittests/tests-flashpage/Makefile

+include $(RIOTBASE)/Makefile.base

tests/unittests/tests-flashpage/tests-flashpage.c

+/*
+ * Copyright (C) 2016 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @{
+ *
+ * @file
+ */
+
+#include <errno.h>
+#include <stdint.h>
+
+#include "cpu.h"
+#include "embUnit/embUnit.h"
+#include "tests-flashpage.h"
+
+/* need to define these values before including the header */
+#ifndef FLASHPAGE_SIZE
+#define FLASHPAGE_SIZE      512
+#endif
+#ifndef FLASHPAGE_NUMOF
+#define FLASHPAGE_NUMOF     128
+#endif
+
+#include "periph/flashpage.h"
+
+static void test_flashbase_addr(void)
+{
+    void *addr;
+
+    addr = flashpage_addr(0);
+    TEST_ASSERT_EQUAL_INT((int)CPU_FLASH_BASE, (int)addr);
+    addr = flashpage_addr(FLASHPAGE_NUMOF - 1);
+    TEST_ASSERT_EQUAL_INT((long)CPU_FLASH_BASE + (((unsigned)FLASHPAGE_NUMOF - 1) * FLASHPAGE_SIZE), (int)addr);
+    addr = flashpage_addr(12);
+    TEST_ASSERT_EQUAL_INT((int)CPU_FLASH_BASE + (12 * FLASHPAGE_SIZE), (int)addr);
+}
+
+static void test_flashbase_page(void)
+{
+    int page;
+
+    page = flashpage_page((void *)CPU_FLASH_BASE);
+    TEST_ASSERT_EQUAL_INT(0, page);
+    page = flashpage_page((void *)(CPU_FLASH_BASE + 1));
+    TEST_ASSERT_EQUAL_INT(0, page);
+    page = flashpage_page((void *)(CPU_FLASH_BASE + FLASHPAGE_SIZE));
+    TEST_ASSERT_EQUAL_INT(1, page);
+    page = flashpage_page((void *)(CPU_FLASH_BASE + FLASHPAGE_SIZE + 1));
+    TEST_ASSERT_EQUAL_INT(1, page);
+    page = flashpage_page((void *)(CPU_FLASH_BASE + ((unsigned)FLASHPAGE_SIZE * (FLASHPAGE_NUMOF - 1))));
+    TEST_ASSERT_EQUAL_INT(FLASHPAGE_NUMOF - 1, page);
+}
+
+Test *tests_flashpage_tests(void)
+{
+    EMB_UNIT_TESTFIXTURES(fixtures) {
+        new_TestFixture(test_flashbase_addr),
+        new_TestFixture(test_flashbase_page)
+    };
+
+    EMB_UNIT_TESTCALLER(flashbase_tests, NULL, NULL, fixtures);
+
+    return (Test *)&flashbase_tests;
+}
+
+void tests_flashpage(void)
+{
+    TESTS_RUN(tests_flashpage_tests());
+}
+/** @} */

tests/unittests/tests-flashpage/tests-flashpage.h

+/*
+ * Copyright (C) 2016 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @addtogroup  unittests
+ * @{
+ *
+ * @file
+ * @brief       Unittests for the ``flashpage`` periph driver
+ *
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ */
+#ifndef TESTS_FLASHPAGE_H_
+#define TESTS_FLASHPAGE_H_
+
+#include "embUnit.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   Entry point of this test suite
+ */
+void tests_flashpage(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* TESTS_FLASHPAGE_H_ */
+/** @} */