nimble/drivers/fem: Add support for SKY66403-11

This adds driver for SKY66403-11. It is very similar to SKY66112-11
but PINs configuration has different meaning in transmit mode.

nimble/drivers/fem/sky66403/include/sky66403/sky66403.h

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ */
+
+
+#ifndef _SKY66403_H
+#define _SKY66403_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void sky66403_tx_linear_mode(uint8_t enabled);
+void sky66403_rx_bypass(uint8_t enabled);
+void sky66403_tx_bypass(uint8_t enabled);
+
+#if MYNEWT_VAL_CHOICE(SKY66403_ANTENNA_PORT, runtime)
+uint8_t sky66403_default_antenna_get(void);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SKY66403_H */

nimble/drivers/fem/sky66403/pkg.yml

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+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you 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.
+#
+
+pkg.name: nimble/drivers/fem/sky66403
+pkg.description: Driver for SKY66403 front-end module
+pkg.author: "Apache Mynewt <dev@mynewt.apache.org>"
+pkg.homepage: "https://mynewt.apache.org/"
+pkg.apis:
+ - ble_fem_pa
+ - ble_fem_lna
+ - ble_fem_antenna
+pkg.deps:
+ - nimble/controller
+
+pkg.init:
+ sky66403_init: 999

nimble/drivers/fem/sky66403/src/sky66403.c

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 <assert.h>
+#include <sky66403/sky66403.h>
+#include <syscfg/syscfg.h>
+#include <hal/hal_gpio.h>
+#include <controller/ble_fem.h>
+
+static struct {
+ uint8_t rx_bypass : 1;
+ uint8_t tx_bypass : 1;
+} sky66403_config = {
+ .rx_bypass = MYNEWT_VAL(SKY66403_RX_BYPASS),
+ .tx_bypass = MYNEWT_VAL(SKY66403_TX_BYPASS),
+};
+
+#if !MYNEWT_VAL_CHOICE(SKY66403_ANTENNA_PORT, runtime)
+static uint8_t
+sky66403_default_antenna_get(void)
+{
+ if (MYNEWT_VAL_CHOICE(SKY66403_ANTENNA_PORT, ANT2)) {
+ return 2;
+ } else {
+ return 1;
+ }
+}
+#endif
+
+static void
+sky66403_bypass(uint8_t enabled)
+{
+ /* this is called only if bypass is enabled which means CPS PIN is
+ * correctly set and there is no need to check it here.
+ */
+ hal_gpio_write(MYNEWT_VAL(SKY66403_PIN_CPS), enabled);
+}
+
+void
+ble_fem_pa_init(void)
+{
+ sky66403_tx_linear_mode(MYNEWT_VAL(SKY66403_TX_LINEAR_MODE));
+ sky66403_tx_bypass(0);
+#if MYNEWT_VAL(BLE_FEM_ANTENNA)
+ ble_fem_antenna(0);
+#endif
+}
+
+void
+ble_fem_pa_enable(void)
+{
+ if (sky66403_config.tx_bypass) {
+ sky66403_bypass(1);
+ }
+}
+
+void
+ble_fem_pa_disable(void)
+{
+ if (sky66403_config.tx_bypass) {
+ sky66403_bypass(0);
+ }
+}
+
+void
+ble_fem_lna_init(void)
+{
+ sky66403_rx_bypass(0);
+#if MYNEWT_VAL(BLE_FEM_ANTENNA)
+ ble_fem_antenna(0);
+#endif
+}
+
+void
+ble_fem_lna_enable(void)
+{
+ if (sky66403_config.rx_bypass) {
+ sky66403_bypass(1);
+ }
+}
+
+void
+ble_fem_lna_disable(void)
+{
+ if (sky66403_config.rx_bypass) {
+ sky66403_bypass(0);
+ }
+}
+
+void
+sky66403_tx_linear_mode(uint8_t enabled)
+{
+ int pin = MYNEWT_VAL(SKY66403_PIN_CHL);
+
+ if (pin >= 0) {
+ hal_gpio_write(pin, enabled);
+ }
+}
+
+int
+ble_fem_antenna(uint8_t port)
+{
+ int pin = MYNEWT_VAL(SKY66403_PIN_SEL);
+ uint8_t ant;
+
+ if (pin >= 0) {
+ switch (port) {
+ case 0:
+ ant = sky66403_default_antenna_get();
+ assert(ant == 1 || ant == 2);
+ return ble_fem_antenna(ant);
+ case 1:
+ hal_gpio_write(pin, 0);
+ break;
+ case 2:
+ hal_gpio_write(pin, 1);
+ break;
+ default:
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+void
+sky66403_rx_bypass(uint8_t enabled)
+{
+ int pin = MYNEWT_VAL(SKY66403_PIN_CPS);
+
+ if (pin >= 0) {
+ sky66403_config.rx_bypass = enabled;
+ sky66403_bypass(enabled);
+ }
+}
+
+void
+sky66403_tx_bypass(uint8_t enabled)
+{
+ int pin = MYNEWT_VAL(SKY66403_PIN_CPS);
+
+ if (pin >= 0) {
+ sky66403_config.tx_bypass = enabled;
+ sky66403_bypass(enabled);
+ }
+}
+
+void
+sky66403_init(void)
+{
+ int pin;
+
+ /* Use CRX and CTX to enable sleep mode */
+ pin = MYNEWT_VAL(SKY66403_PIN_CSD);
+ if (pin >= 0) {
+ hal_gpio_init_out(pin, 1);
+ }
+
+ /* Set default tx power mode */
+ pin = MYNEWT_VAL(SKY66403_PIN_CHL);
+ if (pin >= 0) {
+ hal_gpio_init_out(pin, MYNEWT_VAL(SKY66403_TX_LINEAR_MODE));
+ }
+
+ /* Disable bypass, we'll enable it when needed */
+ pin = MYNEWT_VAL(SKY66403_PIN_CPS);
+ if (pin >= 0) {
+ hal_gpio_init_out(pin, 0);
+ }
+
+ /* configure default antenna */
+ pin = MYNEWT_VAL(SKY66403_PIN_SEL);
+ if (pin >= 0) {
+ switch (sky66403_default_antenna_get()) {
+ case 1:
+ hal_gpio_init_out(pin, 0);
+ break;
+ case 2:
+ hal_gpio_init_out(pin, 1);
+ break;
+ default:
+ assert(0);
+ }
+ }
+}

nimble/drivers/fem/sky66403/syscfg.yml

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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you 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.
+#
+
+syscfg.defs:
+ SKY66403_PIN_CSD:
+ description: >
+ GPIO pin number to control CSD signal.
+ When set to '-1', pin state will not be changed and it should be
+ driven externally.
+ value: -1
+ SKY66403_PIN_CPS:
+ description: >
+ GPIO pin number to control CPS signal.
+ When set to '-1', pin state will not be changed and it should be
+ driven externally.
+ value: -1
+ SKY66403_PIN_CHL:
+ description: >
+ GPIO pin number to control CHL signal.
+ When set to '-1', pin state will not be changed and it should be
+ driven externally.
+ value: -1
+ SKY66403_PIN_SEL:
+ description: >
+ GPIO pin number to control SEL signal.
+ When set to '-1', pin state will not be changed and it should be
+ driven externally.
+ value: -1
+ SKY66403_TX_LINEAR_MODE:
+ description: >
+ Enables linear mode for TX.
+ Only valid if CHL signal is controller by driver.
+ value: 0
+ SKY66403_TX_BYPASS:
+ description: >
+ Enables bypass for TX which effectively disables operation as PA.
+ Only valid if CPS signal is controller by driver.
+ value: 0
+ SKY66403_RX_BYPASS:
+ description: >
+ Enables bypass for RX which effectively disables operation as PA.
+ Only valid if CPS signal is controller by driver.
+ value: 0
+ SKY66403_ANTENNA_PORT:
+ description: >
+ Selects which antenna port should be enabled. If 'runtime' is
+ selected SKY66403_default_antenna_get() (see SKY66403/SKY66403.h)
+ shall be implemeneted by application.
+ choices:
+ - ANT1
+ - ANT2
+ - runtime
+ value: ANT1
+
+syscfg.vals.!BLE_FEM_PA:
+ # Enable TX bypass by default if PA is disabled
+ SKY66403_TX_BYPASS: 1
+
+syscfg.vals.!BLE_FEM_LNA:
+ # Enable RX bypass by default if LNA is disabled
+ SKY66403_RX_BYPASS: 1