add spi custom configuration function and enhance muti object initlization and setting

Author: 1078249029

bsp/ESP32_C3/drivers/drv_spi.c

@@ -10,6 +10,7 @@
 
 #include <rtthread.h>
 #include <rtdevice.h>
+#include <time.h>
 
 #include "rtdef.h"
 #include "rttypes.h"
@@ -20,6 +21,7 @@
 #include "driver/spi_master.h"
 
 #include "drv_spi.h"
+#include "drivers/dev_spi.h"
 
 #ifdef RT_USING_SPI
 #ifdef BSP_USING_SPI2
@@ -29,7 +31,6 @@
 static struct rt_spi_bus spi_bus2;
 
 static spi_device_handle_t spi;
-
 static spi_bus_config_t buscfg;
 
 static struct esp32_spi spi_bus_obj[] = {
@@ -62,20 +63,9 @@ static void esp32_spi_init(struct esp32_spi *esp32_spi)
     spi_configure(NULL,NULL);
 }
 
-static void spi_pin_mode(rt_base_t pin)
-{
-    gpio_config_t io_conf;
-    io_conf.intr_type = GPIO_INTR_DISABLE;
-    io_conf.mode = GPIO_MODE_OUTPUT;
-    io_conf.pin_bit_mask = (1ULL << pin);
-    io_conf.pull_down_en = 0;
-    io_conf.pull_up_en = 1;
-}
-
 static rt_err_t spi_configure(struct rt_spi_device* device,
                           struct rt_spi_configuration* configuration)
 {
-    /* spi_pin_mode(RT_BSP_SPI_CS_PIN);*/
     static spi_bus_config_t buscfg =
     {
         .miso_io_num=SPI2_IOMUX_PIN_NUM_MISO,              /*MISO*/
@@ -89,20 +79,88 @@ static rt_err_t spi_configure(struct rt_spi_device* device,
     esp_err_t err = spi_bus_initialize(SPI2_HOST, &buscfg, SPI_DMA_CH_AUTO);
     ESP_ERROR_CHECK(err);
 
-    static spi_device_interface_config_t devcfg={
-        .clock_speed_hz = SPI_MASTER_FREQ_8M,
-        .mode = 0,
-        .spics_io_num = RT_BSP_SPI_CS_PIN,
-        .queue_size = 7,
-    };
+    static spi_device_interface_config_t devcfg;
+    if(configuration->data_width == 8)
+    {
+        size_t length;                  ///< Total data length, in bits
+        size_t rxlength;                ///< Total data length received, should be not greater than ``length`` in full-duplex mode (0 defaults this to the value of ``length``)
+    }
+
+    LOG_W("configuration->max_hz = %d \n",configuration->max_hz);
+    if(configuration->max_hz >= SPI_MASTER_FREQ_80M)
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_80M;    ///< 80MHz
+    }
+    else if(configuration->max_hz >= SPI_MASTER_FREQ_40M)
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_40M;    ///< 40MHz
+    }
+    else if(configuration->max_hz >= SPI_MASTER_FREQ_26M)
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_26M;    ///< 26.67MHz
+    }
+    else if(configuration->max_hz >= SPI_MASTER_FREQ_20M)
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_20M;    ///< 20MHz
+    }
+    else if(configuration->max_hz >= SPI_MASTER_FREQ_16M)
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_16M;    ///< 16MHz
+    }
+    else if(configuration->max_hz >= SPI_MASTER_FREQ_13M)
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_13M;    ///< 13.33MHz
+    }
+    else if(configuration->max_hz >= SPI_MASTER_FREQ_11M)
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_11M;    ///< 11.43MHz
+    }
+    else if(configuration->max_hz >= SPI_MASTER_FREQ_10M)
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_10M;    ///< 10MHz
+    }
+    else if(configuration->max_hz >= SPI_MASTER_FREQ_9M)
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_9M ;    ///< 8.89MHz
+    }
+    else
+    {
+        devcfg.clock_speed_hz = SPI_MASTER_FREQ_8M ;
+    }
+
+    switch (configuration->mode)
+    {
+        case RT_SPI_MODE_0: /*!< CPOL = 0, CPHA = 0 */
+            devcfg.mode = 0;
+        case RT_SPI_MODE_1: /*!< CPOL = 0, CPHA = 1 */
+            devcfg.mode = 1;
+        case RT_SPI_MODE_2: /*!< CPOL = 1, CPHA = 0 */
+            devcfg.mode = 2;
+        case RT_SPI_MODE_3: /*!< CPOL = 1, CPHA = 1 */
+            devcfg.mode = 3;
+        default:
+            devcfg.mode = 0;
+    }
+    
+    /* todo: support changing cs_pin,queue_size or specifing spi_device_interface_config_t and 
+    * spi_transaction_t by resever data.Meanwhile finish the initialization of interrupt 
+    * callback function and dma.  
+    */
+        
+    devcfg.spics_io_num = RT_BSP_SPI_CS_PIN;
+    devcfg.queue_size = 7;
 
     err = spi_bus_add_device(SPI2_HOST, &devcfg, &spi);
     ESP_ERROR_CHECK(err);
 
-    spi_bus_obj[0].bus_name = "spi2";
-    spi_bus_obj[0].spi_bus = &spi_bus2;
-    spi_bus_obj[0].esp32_spi_bus_cfg = &buscfg;
-
+    /* Although there is only one spi bus object, it will be a template for other bsps of ESP32 series */
+    for(int i = 0; i < sizeof(spi_bus_obj)/sizeof(spi_bus_obj[0]); i++)
+    {
+        spi_bus_obj[i].bus_name = "spi2";
+        spi_bus_obj[i].spi_bus = &spi_bus2;
+        spi_bus_obj[i].esp32_spi_bus_cfg = &buscfg;
+    }
+    
     return RT_EOK;
 };
 
@@ -116,8 +174,8 @@ static rt_ssize_t spixfer(struct rt_spi_device* device, struct rt_spi_message* m
 
     trans.tx_buffer = message->send_buf;
     trans.rx_buffer = message->recv_buf;
-    trans.length = message->length;
-    trans.rxlength = message->length;
+    trans.length = (message->length)*8;
+    trans.rxlength = (message->length)*8;
 
     spi_device_acquire_bus(spi, portMAX_DELAY);
     esp_err_t err = spi_device_polling_transmit(spi, &trans);
@@ -161,12 +219,15 @@ int rt_hw_spi_init(void)
 {
     int result = 0;
 
-    spi_bus_obj[0].spi_bus->parent.user_data = (void *)&spi_bus_obj[0];
-    result = rt_spi_bus_register(spi_bus_obj[0].spi_bus, spi_bus_obj[0].bus_name, &esp32_spi_ops);
+    for(int i = 0; i < sizeof(spi_bus_obj)/sizeof(spi_bus_obj[0]); i++)
+    {
+        spi_bus_obj[i].spi_bus->parent.user_data = (void *)&spi_bus_obj[i];
+        result = rt_spi_bus_register(spi_bus_obj[i].spi_bus, spi_bus_obj[i].bus_name, &esp32_spi_ops);
 
-    RT_ASSERT(result == RT_EOK);
+        RT_ASSERT(result == RT_EOK);
 
-    LOG_D("%s bus init done", spi_bus_obj[i].bus_name);
+        LOG_D("%s bus init done", spi_bus_obj[i].bus_name);
+    }
 
     return result;
 }