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Use shared SPI bus for CMT and W5500

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This commit is contained in:
LennartF22 2024-09-21 22:06:10 +02:00
parent 5457db269c
commit 36da830f96
2 changed files with 21 additions and 47 deletions
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34
lib/CMT2300a/cmt_spi3.cpp
View File

@ -15,25 +15,11 @@ void cmt_spi3_init(const int8_t pin_sdio, const int8_t pin_clk, const int8_t pin
{
paramLock = xSemaphoreCreateMutex();
spi_host_device_t host_device;
if (!SpiManagerInst.claim_bus(host_device))
ESP_ERROR_CHECK(ESP_FAIL);
spi_bus_config_t buscfg = {
.mosi_io_num = pin_sdio,
.miso_io_num = -1, // single wire MOSI/MISO
.sclk_io_num = pin_clk,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
.data4_io_num = -1,
.data5_io_num = -1,
.data6_io_num = -1,
.data7_io_num = -1,
.max_transfer_sz = 32,
.flags = 0,
.intr_flags = 0,
};
ESP_ERROR_CHECK(spi_bus_initialize(host_device, &buscfg, SPI_DMA_DISABLED));
auto bus_config = std::make_shared<SpiBusConfig>(
static_cast<gpio_num_t>(pin_sdio),
GPIO_NUM_NC,
static_cast<gpio_num_t>(pin_clk)
);
spi_device_interface_config_t devcfg = {
.command_bits = 1,
@ -51,7 +37,10 @@ void cmt_spi3_init(const int8_t pin_sdio, const int8_t pin_clk, const int8_t pin
.pre_cb = nullptr,
.post_cb = nullptr,
};
ESP_ERROR_CHECK(spi_bus_add_device(host_device, &devcfg, &spi_reg));
spi_reg = SpiManagerInst.alloc_device("", bus_config, devcfg);
if (!spi_reg)
ESP_ERROR_CHECK(ESP_FAIL);
// FiFo
spi_device_interface_config_t devcfg2 = {
@ -70,7 +59,10 @@ void cmt_spi3_init(const int8_t pin_sdio, const int8_t pin_clk, const int8_t pin
.pre_cb = nullptr,
.post_cb = nullptr,
};
ESP_ERROR_CHECK(spi_bus_add_device(host_device, &devcfg2, &spi_fifo));
spi_fifo = SpiManagerInst.alloc_device("", bus_config, devcfg2);
if (!spi_fifo)
ESP_ERROR_CHECK(ESP_ERR_NOT_SUPPORTED);
}
void cmt_spi3_write(const uint8_t addr, const uint8_t data)

34
src/W5500.cpp
View File

@ -12,41 +12,22 @@ W5500::W5500(int8_t pin_mosi, int8_t pin_miso, int8_t pin_sclk, int8_t pin_cs, i
eth_handle(nullptr),
eth_netif(nullptr)
{
spi_host_device_t host_device;
if (!SpiManagerInst.claim_bus(host_device))
ESP_ERROR_CHECK(ESP_FAIL);
gpio_reset_pin(static_cast<gpio_num_t>(pin_rst));
gpio_set_level(static_cast<gpio_num_t>(pin_rst), 0);
gpio_set_direction(static_cast<gpio_num_t>(pin_rst), GPIO_MODE_OUTPUT);
gpio_reset_pin(static_cast<gpio_num_t>(pin_mosi));
gpio_reset_pin(static_cast<gpio_num_t>(pin_miso));
gpio_reset_pin(static_cast<gpio_num_t>(pin_sclk));
gpio_reset_pin(static_cast<gpio_num_t>(pin_cs));
gpio_reset_pin(static_cast<gpio_num_t>(pin_int));
esp_err_t err = gpio_install_isr_service(ARDUINO_ISR_FLAG);
if (err != ESP_ERR_INVALID_STATE) // don't raise an error when ISR service is already installed
ESP_ERROR_CHECK(err);
spi_bus_config_t bus_config {
.mosi_io_num = pin_mosi,
.miso_io_num = pin_miso,
.sclk_io_num = pin_sclk,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
.data4_io_num = -1,
.data5_io_num = -1,
.data6_io_num = -1,
.data7_io_num = -1,
.max_transfer_sz = 0, // uses default value internally
.flags = 0,
.intr_flags = 0,
};
ESP_ERROR_CHECK(spi_bus_initialize(host_device, &bus_config, SPI_DMA_CH_AUTO));
auto bus_config = std::make_shared<SpiBusConfig>(
static_cast<gpio_num_t>(pin_mosi),
static_cast<gpio_num_t>(pin_miso),
static_cast<gpio_num_t>(pin_sclk)
);
spi_device_interface_config_t device_config {
.command_bits = 16, // actually address phase
@ -65,8 +46,9 @@ W5500::W5500(int8_t pin_mosi, int8_t pin_miso, int8_t pin_sclk, int8_t pin_cs, i
.post_cb = nullptr,
};
spi_device_handle_t spi;
ESP_ERROR_CHECK(spi_bus_add_device(host_device, &device_config, &spi));
spi_device_handle_t spi = SpiManagerInst.alloc_device("", bus_config, device_config);
if (!spi)
ESP_ERROR_CHECK(ESP_FAIL);
// Reset sequence
delayMicroseconds(500);