extmod/utime_mphal: Factor out implementations in terms of mp_hal_* for reuse.

As long as a port implement mp_hal_sleep_ms(), mp_hal_ticks_ms(), etc.
functions, it can just use standard implementations of utime.sleel_ms(),
utime.ticks_ms(), etc. Python-level functions.

7 files changed, 139 insertions, 54 deletions

diff --git a/esp8266/modutime.c b/esp8266/modutime.c
index 4b94ace74..abfe069cc 100644
--- a/esp8266/modutime.c
+++ b/esp8266/modutime.c
@@ -38,6 +38,7 @@
 #include "modpybrtc.h"
 #include "timeutils.h"
 #include "user_interface.h"
+#include "extmod/utime_mphal.h"
 
 /// \module time - time related functions
 ///
@@ -99,53 +100,6 @@ STATIC mp_obj_t time_mktime(mp_obj_t tuple) {
 }
 MP_DEFINE_CONST_FUN_OBJ_1(time_mktime_obj, time_mktime);
 
-/// \function sleep(seconds)
-/// Sleep for the given number of seconds.
-STATIC mp_obj_t time_sleep(mp_obj_t seconds_o) {
-    #if MICROPY_PY_BUILTINS_FLOAT
-    mp_hal_delay_ms(1000 * mp_obj_get_float(seconds_o));
-    #else
-    mp_hal_delay_ms(1000 * mp_obj_get_int(seconds_o));
-    #endif
-    return mp_const_none;
-}
-MP_DEFINE_CONST_FUN_OBJ_1(time_sleep_obj, time_sleep);
-
-STATIC mp_obj_t time_sleep_ms(mp_obj_t arg) {
-    mp_hal_delay_ms(mp_obj_get_int(arg));
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(time_sleep_ms_obj, time_sleep_ms);
-
-STATIC mp_obj_t time_sleep_us(mp_obj_t arg) {
-    mp_hal_delay_us(mp_obj_get_int(arg));
-    return mp_const_none;
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_1(time_sleep_us_obj, time_sleep_us);
-
-STATIC mp_obj_t time_ticks_ms(void) {
-    return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_ms() & MP_SMALL_INT_POSITIVE_MASK);
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_ms_obj, time_ticks_ms);
-
-STATIC mp_obj_t time_ticks_us(void) {
-    return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_us() & MP_SMALL_INT_POSITIVE_MASK);
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_us_obj, time_ticks_us);
-
-STATIC mp_obj_t time_ticks_cpu(void) {
-    return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_cpu() & MP_SMALL_INT_POSITIVE_MASK);
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_cpu_obj, time_ticks_cpu);
-
-STATIC mp_obj_t time_ticks_diff(mp_obj_t start_in, mp_obj_t end_in) {
-    // we assume that the arguments come from ticks_xx so are small ints
-    uint32_t start = MP_OBJ_SMALL_INT_VALUE(start_in);
-    uint32_t end = MP_OBJ_SMALL_INT_VALUE(end_in);
-    return MP_OBJ_NEW_SMALL_INT((end - start) & MP_SMALL_INT_POSITIVE_MASK);
-}
-STATIC MP_DEFINE_CONST_FUN_OBJ_2(time_ticks_diff_obj, time_ticks_diff);
-
 /// \function time()
 /// Returns the number of seconds, as an integer, since 1/1/2000.
 STATIC mp_obj_t time_time(void) {
@@ -159,13 +113,13 @@ STATIC const mp_map_elem_t time_module_globals_table[] = {
 
     { MP_OBJ_NEW_QSTR(MP_QSTR_localtime), (mp_obj_t)&time_localtime_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_mktime), (mp_obj_t)&time_mktime_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep), (mp_obj_t)&time_sleep_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep_ms), (mp_obj_t)&time_sleep_ms_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep_us), (mp_obj_t)&time_sleep_us_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_ms), (mp_obj_t)&time_ticks_ms_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_us), (mp_obj_t)&time_ticks_us_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_cpu), (mp_obj_t)&time_ticks_cpu_obj },
-    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_diff), (mp_obj_t)&time_ticks_diff_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep), (mp_obj_t)&mp_utime_sleep_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep_ms), (mp_obj_t)&mp_utime_sleep_ms_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sleep_us), (mp_obj_t)&mp_utime_sleep_us_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_ms), (mp_obj_t)&mp_utime_ticks_ms_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_us), (mp_obj_t)&mp_utime_ticks_us_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_cpu), (mp_obj_t)&mp_utime_ticks_cpu_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_diff), (mp_obj_t)&mp_utime_ticks_diff_obj },
     { MP_OBJ_NEW_QSTR(MP_QSTR_time), (mp_obj_t)&time_time_obj },
 };
 
diff --git a/esp8266/mpconfigport.h b/esp8266/mpconfigport.h
index 6d0deba8d..201057f12 100644
--- a/esp8266/mpconfigport.h
+++ b/esp8266/mpconfigport.h
@@ -62,6 +62,7 @@
 #define MICROPY_PY_UJSON            (1)
 #define MICROPY_PY_URANDOM          (1)
 #define MICROPY_PY_URE              (1)
+#define MICROPY_PY_UTIME_MP_HAL     (1)
 #define MICROPY_PY_UZLIB            (1)
 #define MICROPY_PY_LWIP             (1)
 #define MICROPY_PY_MACHINE          (1)
diff --git a/extmod/utime_mphal.c b/extmod/utime_mphal.c
new file mode 100644
index 000000000..9471ad525
--- /dev/null
+++ b/extmod/utime_mphal.c
@@ -0,0 +1,83 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013-2016 Damien P. George
+ * Copyright (c) 2016 Paul Sokolovsky
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/mpconfig.h"
+#if MICROPY_PY_UTIME_MP_HAL
+
+#include <string.h>
+
+#include "py/obj.h"
+#include "py/mphal.h"
+#include "py/smallint.h"
+#include "extmod/utime_mphal.h"
+
+STATIC mp_obj_t time_sleep(mp_obj_t seconds_o) {
+    #if MICROPY_PY_BUILTINS_FLOAT
+    mp_hal_delay_ms(1000 * mp_obj_get_float(seconds_o));
+    #else
+    mp_hal_delay_ms(1000 * mp_obj_get_int(seconds_o));
+    #endif
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_sleep_obj, time_sleep);
+
+STATIC mp_obj_t time_sleep_ms(mp_obj_t arg) {
+    mp_hal_delay_ms(mp_obj_get_int(arg));
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_sleep_ms_obj, time_sleep_ms);
+
+STATIC mp_obj_t time_sleep_us(mp_obj_t arg) {
+    mp_hal_delay_us(mp_obj_get_int(arg));
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_sleep_us_obj, time_sleep_us);
+
+STATIC mp_obj_t time_ticks_ms(void) {
+    return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_ms() & MP_SMALL_INT_POSITIVE_MASK);
+}
+MP_DEFINE_CONST_FUN_OBJ_0(mp_utime_ticks_ms_obj, time_ticks_ms);
+
+STATIC mp_obj_t time_ticks_us(void) {
+    return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_us() & MP_SMALL_INT_POSITIVE_MASK);
+}
+MP_DEFINE_CONST_FUN_OBJ_0(mp_utime_ticks_us_obj, time_ticks_us);
+
+STATIC mp_obj_t time_ticks_cpu(void) {
+    return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_cpu() & MP_SMALL_INT_POSITIVE_MASK);
+}
+MP_DEFINE_CONST_FUN_OBJ_0(mp_utime_ticks_cpu_obj, time_ticks_cpu);
+
+STATIC mp_obj_t time_ticks_diff(mp_obj_t start_in, mp_obj_t end_in) {
+    // we assume that the arguments come from ticks_xx so are small ints
+    uint32_t start = MP_OBJ_SMALL_INT_VALUE(start_in);
+    uint32_t end = MP_OBJ_SMALL_INT_VALUE(end_in);
+    return MP_OBJ_NEW_SMALL_INT((end - start) & MP_SMALL_INT_POSITIVE_MASK);
+}
+MP_DEFINE_CONST_FUN_OBJ_2(mp_utime_ticks_diff_obj, time_ticks_diff);
+
+#endif // MICROPY_PY_UTIME_MP_HAL
diff --git a/extmod/utime_mphal.h b/extmod/utime_mphal.h
new file mode 100644
index 000000000..4f2395a09
--- /dev/null
+++ b/extmod/utime_mphal.h
@@ -0,0 +1,36 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013-2016 Damien P. George
+ * Copyright (c) 2016 Paul Sokolovsky
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/obj.h"
+
+MP_DECLARE_CONST_FUN_OBJ(mp_utime_sleep_obj);
+MP_DECLARE_CONST_FUN_OBJ(mp_utime_sleep_ms_obj);
+MP_DECLARE_CONST_FUN_OBJ(mp_utime_sleep_us_obj);
+MP_DECLARE_CONST_FUN_OBJ(mp_utime_ticks_ms_obj);
+MP_DECLARE_CONST_FUN_OBJ(mp_utime_ticks_us_obj);
+MP_DECLARE_CONST_FUN_OBJ(mp_utime_ticks_cpu_obj);
+MP_DECLARE_CONST_FUN_OBJ(mp_utime_ticks_diff_obj);
diff --git a/py/mpconfig.h b/py/mpconfig.h
index e33a41f7a..dcdaffe0f 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -860,6 +860,12 @@ typedef double mp_float_t;
 #define MICROPY_PY_UERRNO (0)
 #endif
 
+// Whether to provide "utime" module functions implementation
+// in terms of mp_hal_* functions.
+#ifndef MICROPY_PY_UTIME_MP_HAL
+#define MICROPY_PY_UTIME_MP_HAL (0)
+#endif
+
 // Whether to provide "_thread" module
 #ifndef MICROPY_PY_THREAD
 #define MICROPY_PY_THREAD (0)
diff --git a/py/mphal.h b/py/mphal.h
index 54a45b024..8d5654f9e 100644
--- a/py/mphal.h
+++ b/py/mphal.h
@@ -66,6 +66,10 @@ mp_uint_t mp_hal_ticks_ms(void);
 mp_uint_t mp_hal_ticks_us(void);
 #endif
 
+#ifndef mp_hal_ticks_cpu
+mp_uint_t mp_hal_ticks_cpu(void);
+#endif
+
 // If port HAL didn't define its own pin API, use generic
 // "virtual pin" API from the core.
 #ifndef mp_hal_pin_obj_t
diff --git a/py/py.mk b/py/py.mk
index 741ad52f9..8caa37f8a 100644
--- a/py/py.mk
+++ b/py/py.mk
@@ -229,6 +229,7 @@ PY_O_BASENAME = \
 	../extmod/vfs_fat_file.o \
 	../extmod/vfs_fat_lexer.o \
 	../extmod/vfs_fat_misc.o \
+	../extmod/utime_mphal.o \
 	../extmod/moduos_dupterm.o \
 	../lib/embed/abort_.o \
 	../lib/utils/printf.o \