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EMW3080B_SPI.h
1 /*
2  * Copyright (c) STMicroelectronics 2021
3  * SPDX-License-Identifier: Apache-2.0
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 
19 /* Includes ------------------------------------------------------------------*/
20 #include <inttypes.h>
21 
22 /* Private includes ----------------------------------------------------------*/
23 #include "mbed.h"
24 #include "mbed_debug.h"
25 #include "mbed_error.h"
26 #include "mx_wifi.h"
27 #include "core/mx_wifi_hci.h"
28 
29 
30 
31 class EMW3080B_SPI : public SPI {
32 public:
33  EMW3080B_SPI(bool debug = MBED_CONF_EMW3080B_WIFI_DEBUG,
34  PinName mosi = MBED_CONF_EMW3080B_WIFI_MOSI,
35  PinName miso = MBED_CONF_EMW3080B_WIFI_MISO,
36  PinName sclk = MBED_CONF_EMW3080B_WIFI_SCLK,
37  PinName nss = MBED_CONF_EMW3080B_WIFI_NSS,
38  PinName notify = MBED_CONF_EMW3080B_WIFI_NOTIFY,
39  PinName flow = MBED_CONF_EMW3080B_WIFI_FLOW,
40  PinName reset = MBED_CONF_EMW3080B_WIFI_RESET
41  );
42 
43 private:
44  DigitalOut _resetpin;
45  DigitalOut _nsspin;
46 
47  DigitalIn _notifypin;
48  DigitalIn _flowpin;
49 
50  InterruptIn *_notify_irq;
51  InterruptIn *_flow_irq;
52 
53  void flow_rise(void);
54  void notify_rise(void);
55  int8_t wait_flow_high(uint32_t timeout);
56 
57  SEM_DECLARE(spi_txrx_sem);
58  SEM_DECLARE(spi_flow_rise_sem);
59  SEM_DECLARE(spi_transfer_done_sem);
60 
61  uint8_t *spi_tx_data = NULL;
62  uint16_t spi_tx_len = 0;
63 
64  int32_t TransmitReceive(uint8_t *txdata, uint8_t *rxdata, uint32_t datalen, uint32_t timeout);
65  int32_t Transmit(uint8_t *txdata, uint32_t datalen, uint32_t timeout);
66  int32_t Receive(uint8_t *rxdata, uint32_t datalen, uint32_t timeout);
67  void spi_handler(int event);
68 
69  int8_t mx_wifi_spi_txrx_start(void);
70  int8_t mx_wifi_spi_txrx_stop(void);
71 
72  THREAD_DECLARE(MX_WIFI_TxRxThreadId);
73 
74 
75 public:
76 
77  int8_t IO_Init(uint16_t mode);
78  int8_t IO_DeInit(void);
79  void IO_Delay(uint32_t delayms);
80  uint16_t IO_Send(uint8_t *data, uint16_t len);
81  uint16_t IO_Receive(uint8_t *buffer, uint16_t buff_size);
82  void process_txrx_poll(uint32_t timeout);
83 
84  uint8_t _debug_level;
85 };
mx_wifi.h
Header for mx_wifi.c module.
EMW3080B_SPI
Definition: EMW3080B_SPI.h:31
mx_wifi_hci.h
Header for mx_wifi_hci.c module.
mbed::InterruptIn
A digital interrupt input, used to call a function on a rising or falling edge.
Definition: InterruptIn.h:65
mbed::DigitalOut
A digital output, used for setting the state of a pin.
Definition: DigitalOut.h:51
mbed::SPI
A SPI Master, used for communicating with SPI slave devices.
Definition: SPI.h:98
debug
static void debug(const char *format,...) MBED_PRINTF(1
Output a debug message.
Definition: mbed_debug.h:44
mbed::DigitalIn
A digital input, used for reading the state of a pin.
Definition: DigitalIn.h:56
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