Import Mbed OS hard-float snapshot

targets/TARGET_Cypress/TARGET_PSOC6/cy_pwmout_api.c

@@ -0,0 +1,104 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2019, Arm Limited and affiliates.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "pwmout_api.h"
+#include "mbed_error.h"
+#include "cyhal_pwm.h"
+
+#if DEVICE_PWMOUT
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static const int CY_US_PER_SECOND = 1000000;
+static const int CY_US_PER_MS = 1000;
+
+void pwmout_init(pwmout_t *obj, PinName pin)
+{
+    if (CY_RSLT_SUCCESS != cyhal_pwm_init(&(obj->hal_pwm), pin, NULL)) {
+        MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_PWM, MBED_ERROR_CODE_FAILED_OPERATION), "cyhal_pwm_init");
+    }
+    obj->period_us = 100;
+    obj->width_us = 0;
+}
+
+void pwmout_free(pwmout_t *obj)
+{
+    cyhal_pwm_free(&(obj->hal_pwm));
+}
+
+void pwmout_write(pwmout_t *obj, float percent)
+{
+    MBED_ASSERT(percent >= 0.0f && percent <= 1.0f);
+    pwmout_pulsewidth_us(obj, (int)(percent * obj->period_us));
+}
+
+float pwmout_read(pwmout_t *obj)
+{
+    return ((float)(obj->width_us) / obj->period_us);
+}
+
+void pwmout_period(pwmout_t *obj, float seconds)
+{
+    pwmout_period_us(obj, (int)(seconds * CY_US_PER_SECOND));
+}
+
+void pwmout_period_ms(pwmout_t *obj, int ms)
+{
+    pwmout_period_us(obj, ms * CY_US_PER_MS);
+}
+
+void pwmout_period_us(pwmout_t *obj, int us)
+{
+    obj->period_us = (uint32_t)us;
+    if (CY_RSLT_SUCCESS != cyhal_pwm_set_period(&(obj->hal_pwm), obj->period_us, obj->width_us)) {
+        MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_PWM, MBED_ERROR_CODE_FAILED_OPERATION), "cyhal_pwm_set_period");
+    }
+    if (CY_RSLT_SUCCESS != cyhal_pwm_start(&(obj->hal_pwm))) {
+        MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_PWM, MBED_ERROR_CODE_FAILED_OPERATION), "cyhal_pwm_start");
+    }
+}
+
+void pwmout_pulsewidth(pwmout_t *obj, float seconds)
+{
+    pwmout_pulsewidth_us(obj, (int)(seconds * CY_US_PER_SECOND));
+}
+
+void pwmout_pulsewidth_ms(pwmout_t *obj, int ms)
+{
+    pwmout_pulsewidth_us(obj, ms * CY_US_PER_MS);
+}
+
+void pwmout_pulsewidth_us(pwmout_t *obj, int us)
+{
+    obj->width_us = (uint32_t)us;
+    if (CY_RSLT_SUCCESS != cyhal_pwm_set_period(&(obj->hal_pwm), obj->period_us, obj->width_us)) {
+        MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_PWM, MBED_ERROR_CODE_FAILED_OPERATION), "cyhal_pwm_set_period");
+    }
+}
+
+const PinMap *pwmout_pinmap(void)
+{
+    return PinMap_PWM_OUT;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif