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PSOC6: reuse FUTURE_SEQUANA porting layer
Copy the porting layer from TARGET_PSOC6_FUTURE to TARGET_PSOC6. This commit is intended to make the history and changes applied easier to follow. ipcpipe_transport.c, ipcpipe_transport.h, rpc_api.h, rpc_defs.h are excluded (not used by Cypress port). PeripheralNames.h is moved to BSP layer introduced in subsequent commits (the peripheral names and count are board-specific).
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‎targets/TARGET_Cypress/TARGET_PSOC6/PeripheralPins.h

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/*
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* mbed Microcontroller Library
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* Copyright (c) 2017-2018 Future Electronics
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_PERIPHERALPINS_H
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#define MBED_PERIPHERALPINS_H
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#include "pinmap.h"
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#include "PeripheralNames.h"
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// //*** I2C ***
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#if DEVICE_I2C
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extern const PinMap PinMap_I2C_SDA[];
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extern const PinMap PinMap_I2C_SCL[];
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#endif
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//*** PWM ***
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#if DEVICE_PWMOUT
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extern const PinMap PinMap_PWM_OUT[];
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#endif
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//*** SERIAL ***
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#if DEVICE_SERIAL
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extern const PinMap PinMap_UART_TX[];
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extern const PinMap PinMap_UART_RX[];
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extern const PinMap PinMap_UART_RTS[];
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extern const PinMap PinMap_UART_CTS[];
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#endif
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//*** SPI ***
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#if DEVICE_SPI
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extern const PinMap PinMap_SPI_MOSI[];
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extern const PinMap PinMap_SPI_MISO[];
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extern const PinMap PinMap_SPI_SCLK[];
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extern const PinMap PinMap_SPI_SSEL[];
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#endif
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//*** ADC ***
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#if DEVICE_ANALOGIN
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extern const PinMap PinMap_ADC[];
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#endif
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//*** DAC ***
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#if DEVICE_ANALOGOUT
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extern const PinMap PinMap_DAC[];
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#endif
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#endif

‎targets/TARGET_Cypress/TARGET_PSOC6/PinNamesTypes.h

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/*
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* mbed Microcontroller Library
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* Copyright (c) 2017-2018 Future Electronics
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_PINNAMESTYPES_H
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#define MBED_PINNAMESTYPES_H
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#include "cmsis.h"
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typedef enum {
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PIN_INPUT = 0,
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PIN_OUTPUT
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} PinDirection;
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typedef enum {
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PullNone = 0,
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PullUp = 1,
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PullDown = 2,
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OpenDrainDriveLow = 3,
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OpenDrainDriveHigh = 4,
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OpenDrain = OpenDrainDriveLow,
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PushPull = 5,
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AnalogMode = 6,
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PullDefault = PullNone
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} PinMode;
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typedef struct {
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en_hsiom_sel_t hsiom : 8;
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en_clk_dst_t clock : 8;
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PinMode mode : 4;
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PinDirection dir : 1;
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} PinFunction;
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// Encode pin function.
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// Output function
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#define CY_PIN_FUNCTION(hsiom, clock, mode, dir) (int)(((dir) << 20) | ((mode) << 16) | ((clock) << 8) | (hsiom))
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#define CY_PIN_OUT_FUNCTION(hsiom, clock) CY_PIN_FUNCTION(hsiom, clock, PushPull, PIN_OUTPUT)
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#define CY_PIN_OD_FUNCTION(hsiom, clock) CY_PIN_FUNCTION(hsiom, clock, OpenDrain, PIN_OUTPUT)
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#define CY_PIN_IN_FUNCTION(hsiom, clock) CY_PIN_FUNCTION(hsiom, clock, PullDefault, PIN_INPUT)
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#define CY_PIN_PULLUP_FUNCTION(hsiom, clock) CY_PIN_FUNCTION(hsiom, clock, PullUp, PIN_INPUT)
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#define CY_PIN_ANALOG_FUNCTION(clock) CY_PIN_FUNCTION(HSIOM_SEL_GPIO, clock, AnalogMode, 0)
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// Create unique name to force 32-bit PWM usage on a pin.
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#define CY_PIN_FORCE_PWM_32(pin) ((uint32_t)(pin) + 0x8000)
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static inline en_hsiom_sel_t CY_PIN_HSIOM(int function)
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{
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return (en_hsiom_sel_t)(function & 0xFF);
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}
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static inline en_clk_dst_t CY_PIN_CLOCK(int function)
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{
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return (en_clk_dst_t)((function >> 8) & 0xFF);
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}
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static inline PinMode CY_PIN_MODE(int function)
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{
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return (PinMode)((function >> 16) & 0x0F);
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}
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static inline PinDirection CY_PIN_DIRECTION(int function)
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{
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return (PinDirection)((function >> 20) & 1);
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}
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static inline int CY_PERIPHERAL_BASE(int peripheral)
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{
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return peripheral & 0xffff0000;
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}
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#endif

‎targets/TARGET_Cypress/TARGET_PSOC6/PortNames.h

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/*
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* mbed Microcontroller Library
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* Copyright (c) 2017-2018 Future Electronics
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef MBED_PORTNAMES_H
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#define MBED_PORTNAMES_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Port[15-0]
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typedef enum {
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Port0 = 0x0,
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Port1 = 0x1,
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Port2 = 0x2,
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Port3 = 0x3,
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Port4 = 0x4,
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Port5 = 0x5,
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Port6 = 0x6,
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Port7 = 0x7,
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Port8 = 0x8,
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Port9 = 0x9,
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Port10 = 0xA,
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Port11 = 0xB,
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Port12 = 0xC,
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Port13 = 0xD,
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Port14 = 0xE
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} PortName;
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#ifdef __cplusplus
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}
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#endif
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#endif

‎targets/TARGET_Cypress/TARGET_PSOC6/analogin_api.c

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/*
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* mbed Microcontroller Library
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* Copyright (c) 2017-2018 Future Electronics
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "device.h"
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#include "analogin_api.h"
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#include "cy_sar.h"
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#include "psoc6_utils.h"
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#include "mbed_assert.h"
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#include "mbed_error.h"
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#include "pinmap.h"
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#include "PeripheralPins.h"
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#include "platform/mbed_error.h"
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#if DEVICE_ANALOGIN
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const uint16_t ADC_MAX_VALUE = 0x0fff;
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const uint32_t SAR_BASE_CLOCK_HZ = 18000000; // 18 MHz or less
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/** Default SAR channel configuration.
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* Notice, that because dynamic SAR MUX switching is disabled,
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* per-channel MUX configuration is ignored, thus not configured here.
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*/
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#define DEFAULT_CHANNEL_CONFIG ( \
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CY_SAR_CHAN_SINGLE_ENDED | \
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CY_SAR_CHAN_AVG_ENABLE | \
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CY_SAR_CHAN_SAMPLE_TIME_0 \
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)
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/** Global SAR configuration data, modified as channels are configured.
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*/
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static cy_stc_sar_config_t sar_config = {
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.ctrl = CY_SAR_VREF_SEL_VDDA_DIV_2 |
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CY_SAR_NEG_SEL_VREF |
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CY_SAR_CTRL_COMP_DLY_12 |
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CY_SAR_COMP_PWR_50 |
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CY_SAR_SARSEQ_SWITCH_DISABLE, /**< Control register */
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.sampleCtrl = CY_SAR_RIGHT_ALIGN |
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CY_SAR_SINGLE_ENDED_UNSIGNED |
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CY_SAR_AVG_CNT_16 |
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CY_SAR_AVG_MODE_SEQUENTIAL_FIXED |
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CY_SAR_TRIGGER_MODE_FW_ONLY, /**< Sample control register */
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.sampleTime01 = (4uL << CY_SAR_SAMPLE_TIME0_SHIFT) |
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(4uL << CY_SAR_SAMPLE_TIME1_SHIFT), /**< Sample time in ADC clocks for ST0 and ST1 */
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.sampleTime23 = (4uL << CY_SAR_SAMPLE_TIME2_SHIFT) |
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(4uL << CY_SAR_SAMPLE_TIME3_SHIFT), /**< Sample time in ADC clocks for ST2 and ST3 */
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.rangeThres = 0, /**< Range detect threshold register for all channels (unused)*/
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.rangeCond = 0, /**< Range detect mode for all channels (unused)*/
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.chanEn = 0, /**< Enable bits for the channels */
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.chanConfig = { /**< Channel configuration registers */
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DEFAULT_CHANNEL_CONFIG, // chn 0
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DEFAULT_CHANNEL_CONFIG, // chn 1
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DEFAULT_CHANNEL_CONFIG, // chn 2
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DEFAULT_CHANNEL_CONFIG, // chn 3
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DEFAULT_CHANNEL_CONFIG, // chn 4
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DEFAULT_CHANNEL_CONFIG, // chn 5
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DEFAULT_CHANNEL_CONFIG, // chn 6
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DEFAULT_CHANNEL_CONFIG, // chn 7
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DEFAULT_CHANNEL_CONFIG, // chn 8
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DEFAULT_CHANNEL_CONFIG, // chn 9
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DEFAULT_CHANNEL_CONFIG, // chn 10
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DEFAULT_CHANNEL_CONFIG, // chn 11
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DEFAULT_CHANNEL_CONFIG, // chn 12
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DEFAULT_CHANNEL_CONFIG, // chn 13
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DEFAULT_CHANNEL_CONFIG, // chn 14
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DEFAULT_CHANNEL_CONFIG, // chn 15
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},
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.intrMask = 0, /**< Interrupt enable mask */
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.satIntrMask = 0, /**< Saturate interrupt mask register */
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.rangeIntrMask = 0, /**< Range interrupt mask register */
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.muxSwitch = 0, /**< SARMUX firmware switches to connect analog signals to SAR */
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.muxSwitchSqCtrl = 0, /**< SARMUX Switch SAR sequencer control */
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.configRouting = false, /**< Configure or ignore routing related registers (muxSwitch, muxSwitchSqCtrl) */
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.vrefMvValue = 0, /**< Reference voltage in millivolts used in counts to volts conversion */
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};
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static bool sar_initialized = false;
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static void sar_init(analogin_t *obj)
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{
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if (!sar_initialized) {
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uint32_t sar_clock_divider = CY_INVALID_DIVIDER;
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sar_initialized = true;
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// Allocate and setup clock.
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sar_clock_divider = cy_clk_allocate_divider(CY_SYSCLK_DIV_8_BIT);
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if (sar_clock_divider == CY_INVALID_DIVIDER) {
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error("SAR clock divider allocation failed.");
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return;
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}
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Cy_SysClk_PeriphSetDivider(CY_SYSCLK_DIV_8_BIT,
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sar_clock_divider,
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((CY_CLK_PERICLK_FREQ_HZ + SAR_BASE_CLOCK_HZ / 2) / SAR_BASE_CLOCK_HZ) - 1);
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Cy_SysClk_PeriphEnableDivider(CY_SYSCLK_DIV_8_BIT, sar_clock_divider);
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Cy_SysClk_PeriphAssignDivider(obj->clock, CY_SYSCLK_DIV_8_BIT, sar_clock_divider);
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Cy_SAR_Init(obj->base, &sar_config);
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Cy_SAR_Enable(obj->base);
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}
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}
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void analogin_init(analogin_t *obj, PinName pin)
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{
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uint32_t sar = 0;
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uint32_t sar_function = 0;
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MBED_ASSERT(obj);
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MBED_ASSERT(pin != (PinName)NC);
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sar = pinmap_peripheral(pin, PinMap_ADC);
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if (sar != (uint32_t)NC) {
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if (cy_reserve_io_pin(pin)) {
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error("ANALOG IN pin reservation conflict.");
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}
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obj->base = (SAR_Type*)CY_PERIPHERAL_BASE(sar);
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obj->pin = pin;
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obj->channel_mask = 1 << CY_PIN(pin);
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// Configure clock.
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sar_function = pinmap_function(pin, PinMap_ADC);
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obj->clock = CY_PIN_CLOCK(sar_function);
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sar_init(obj);
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pin_function(pin, sar_function);
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} else {
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error("ANALOG IN pinout mismatch.");
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}
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}
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float analogin_read(analogin_t *obj)
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{
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uint16_t result = analogin_read_u16(obj);
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return (float)result * (1.0 / ADC_MAX_VALUE);
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}
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uint16_t analogin_read_u16(analogin_t *obj)
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{
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uint32_t result = 0;
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Cy_SAR_SetChanMask(obj->base, obj->channel_mask);
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Cy_SAR_SetAnalogSwitch(obj->base, CY_SAR_MUX_SWITCH0, obj->channel_mask, CY_SAR_SWITCH_CLOSE);
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Cy_SAR_StartConvert(obj->base, CY_SAR_START_CONVERT_SINGLE_SHOT);
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if (Cy_SAR_IsEndConversion(obj->base, CY_SAR_WAIT_FOR_RESULT) == CY_SAR_SUCCESS) {
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result = Cy_SAR_GetResult32(obj->base, CY_PIN(obj->pin));
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} else {
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error("ANALOG IN: measurement failed!");
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}
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Cy_SAR_SetAnalogSwitch(obj->base, CY_SAR_MUX_SWITCH0, obj->channel_mask, CY_SAR_SWITCH_OPEN);
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// We are running 16x oversampling extending results to 16 bits.
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return (uint16_t)(result);
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}
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#endif // DEVICE_ANALOGIN
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