esp8266: Change nativeio.I2C to use bitbangio under the hood rather than throwing an error.

2 files changed, 108 insertions, 0 deletions

diff --git a/shared-module/nativeio/I2C.c b/shared-module/nativeio/I2C.c
new file mode 100644
index 000000000..345a3825a
--- /dev/null
+++ b/shared-module/nativeio/I2C.c
@@ -0,0 +1,66 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * 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 "shared-bindings/nativeio/I2C.h"
+#include "shared-bindings/bitbangio/I2C.h"
+#include "py/mperrno.h"
+#include "py/nlr.h"
+
+void common_hal_nativeio_i2c_construct(nativeio_i2c_obj_t *self,
+        const mcu_pin_obj_t* scl, const mcu_pin_obj_t* sda, uint32_t freq) {
+    shared_module_bitbangio_i2c_construct(&self->bitbang, scl, sda, freq);
+}
+
+void common_hal_nativeio_i2c_deinit(nativeio_i2c_obj_t *self) {
+    shared_module_bitbangio_i2c_deinit(&self->bitbang);
+}
+
+bool common_hal_nativeio_i2c_probe(nativeio_i2c_obj_t *self, uint8_t addr) {
+    return shared_module_bitbangio_i2c_probe(&self->bitbang, addr);
+}
+
+bool common_hal_nativeio_i2c_try_lock(nativeio_i2c_obj_t *self) {
+    return shared_module_bitbangio_i2c_try_lock(&self->bitbang);
+}
+
+bool common_hal_nativeio_i2c_has_lock(nativeio_i2c_obj_t *self) {
+    return shared_module_bitbangio_i2c_has_lock(&self->bitbang);
+}
+
+void common_hal_nativeio_i2c_unlock(nativeio_i2c_obj_t *self) {
+    shared_module_bitbangio_i2c_unlock(&self->bitbang);
+}
+
+uint8_t common_hal_nativeio_i2c_write(nativeio_i2c_obj_t *self, uint16_t addr,
+        const uint8_t * data, size_t len, bool transmit_stop_bit) {
+    return shared_module_bitbangio_i2c_write(&self->bitbang, addr, data, len,
+        transmit_stop_bit);
+}
+
+uint8_t common_hal_nativeio_i2c_read(nativeio_i2c_obj_t *self, uint16_t addr,
+        uint8_t * data, size_t len) {
+    return shared_module_bitbangio_i2c_read(&self->bitbang, addr, data, len);
+}
diff --git a/shared-module/nativeio/I2C.h b/shared-module/nativeio/I2C.h
new file mode 100644
index 000000000..b26ba4642
--- /dev/null
+++ b/shared-module/nativeio/I2C.h
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
+ *
+ * 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.
+ */
+
+// This defines the types used to underly the standard nativeio Python objects.
+// The shared API is defined in terms of these types.
+
+#ifndef __MICROPY_INCLUDED_ATMEL_SAMD_SHARED_MODULE_NATIVEIO_I2C_H__
+#define __MICROPY_INCLUDED_ATMEL_SAMD_SHARED_MODULE_NATIVEIO_I2C_H__
+
+#include "shared-module/bitbangio/types.h"
+
+#include "py/obj.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    bitbangio_i2c_obj_t bitbang;
+} nativeio_i2c_obj_t;
+
+#endif // __MICROPY_INCLUDED_ATMEL_SAMD_SHARED_MODULE_NATIVEIO_I2C_H__