mirror of
https://github.com/jialexd/sdk-ameba-v4.0c_180328.git
synced 2024-11-01 03:44:17 +00:00
149 lines
3.5 KiB
C
Executable file
149 lines
3.5 KiB
C
Executable file
#include "FreeRTOS.h"
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#include "task.h"
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#include <platform/platform_stdlib.h>
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#include "basic_types.h"
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#include "platform_opts.h"
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#if CONFIG_EXAMPLE_INIC_GSPI_HOST
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#include "src/include/autoconf.h"
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#include "lwip_netconf.h"
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#include "freertos/inic_intf.h"
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#include "spi_api.h"
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#include "spi_ex_api.h"
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#ifdef CONFIG_RTL8711B
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#define SPI0_MOSI PA_23
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#define SPI0_MISO PA_22
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#define SPI0_SCLK PA_18
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#define SPI0_CS PA_19 // This pin is redundant
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#define GPIO_CS PA_19
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#else
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// SPI0
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#define SPI0_MOSI PC_2
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#define SPI0_MISO PC_3
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#define SPI0_SCLK PC_1
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#define SPI0_CS PC_0 // This pin is redundant
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#define GPIO_CS PB_2
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#endif
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#define SPI0_FREQUENCY 20000000
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// SPI master configuration
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#define SPI_BITS 8 // Ameba SPI support 8bits and 16bits mode
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static spi_t spi0_master;
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static gpio_t gpio_cs;
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volatile bool txDone = FALSE;
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volatile bool rxDone = FALSE;
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volatile bool txbusIdle = FALSE;
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#define SLAVE_SELECT() gpio_write(&gpio_cs, 0)
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#define SLAVE_DESELECT() gpio_write(&gpio_cs, 1)
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int spi_transfer(uint8_t* buf, uint32_t buf_len)
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{
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int i = 0;
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int ret = 0;
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SLAVE_SELECT();
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txbusIdle = FALSE; // ensure TX done
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rxDone = FALSE; // ensure RX done
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if(spi_master_write_read_stream(&spi0_master, buf, buf, buf_len)!=0x00){
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ret = -1;
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}else{
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while((!txbusIdle) || (!rxDone)){
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wait_ms(1);
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if (++i > 2000) {
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printf("SPI write and read Timeout...\r\n");
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break;
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}
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}
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}
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/* Chip Select Pull High */
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SLAVE_DESELECT();
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return ret;
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}
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// SPI master interrupt callback if use interrupt mode
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void spi_tx_rx_intr_callback(void *pdata, SpiIrq event){
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switch(event){
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case SpiRxIrq:
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rxDone = TRUE;
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break;
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case SpiTxIrq:
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txDone = TRUE;
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break;
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default:
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printf("unknown interrput evnent!\n");
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}
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}
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void spi_tx_bus_idle_callback(void *pdata, SpiIrq event){
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txbusIdle = TRUE;
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}
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void spi_init_master(){
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// init spi master
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#ifdef CONFIG_RTL8711B
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spi0_master.spi_idx=MBED_SPI1;
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#endif
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spi_init(&spi0_master, SPI0_MOSI, SPI0_MISO, SPI0_SCLK, SPI0_CS);
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spi_format(&spi0_master, SPI_BITS, 0, 0);
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spi_frequency(&spi0_master, SPI0_FREQUENCY);
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printf("spi master frequency %d Hz\n",SPI0_FREQUENCY);
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// init spi master tx/rx done interrupt
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spi_irq_hook(&spi0_master, (spi_irq_handler)spi_tx_rx_intr_callback, NULL);
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// init spi master tx bus idle interrupt
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spi_bus_tx_done_irq_hook(&spi0_master, (spi_irq_handler)spi_tx_bus_idle_callback, NULL);
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gpio_init(&gpio_cs, GPIO_CS);
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gpio_mode(&gpio_cs, PullDown);
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gpio_dir(&gpio_cs, PIN_OUTPUT);
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SLAVE_DESELECT(); // deselect slave
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}
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void example_inic_gspi_thread(void* param){
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int ret;
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char pbuf_SSID[] = "ATW0=bonjour"; // set your own SSID
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char pbuf_PASS[] = "****"; // set password
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char pbuf_CONN[] = "ATWC";
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printf("iNIC master example start...\n");
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/* init host spi contorller */
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spi_init_master();
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/* init inic driver */
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ret = rltk_inic_init();
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if(ret == 0){// inic init successfully
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rltk_inic_start();
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}
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/* start io control test*/
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// set SSID
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atcmd_ctl(pbuf_SSID, sizeof(pbuf_SSID));
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// set password
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//atcmd_ctl(pbuf_PASS, sizeof(pbuf_PASS));
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// start connecttion
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atcmd_ctl(pbuf_CONN, sizeof(pbuf_CONN));
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fail:
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vTaskDelete(NULL);
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}
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void example_inic_gspi(void)
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{
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if(xTaskCreate(example_inic_gspi_thread, ((const char*)"example_inic_gspi_thread"), 2048, NULL, tskIDLE_PRIORITY + 1, NULL) != pdPASS)
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printf("\n\r%s xTaskCreate(example_inic_gspi_thread) failed", __FUNCTION__);
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}
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#endif
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