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refactor(spi_slave): replace dma_ll in slave hal layer (part 2.2)

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This commit is contained in:
wanlei
2023-12-13 12:51:58 +08:00
committed by Wan Lei
parent 31f4e9c698
commit 67f798b666
15 changed files with 195 additions and 222 deletions
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90
components/esp_driver_spi/src/gpspi/spi_slave.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -181,14 +181,6 @@ esp_err_t spi_slave_initialize(spi_host_device_t host, const spi_bus_config_t *b
hal->dmadesc_tx = spihost[host]->dma_ctx->dmadesc_tx;
hal->dmadesc_rx = spihost[host]->dma_ctx->dmadesc_rx;
hal->dmadesc_n = spihost[host]->dma_ctx->dma_desc_num;
#if SOC_GDMA_SUPPORTED
//temporary used for gdma_ll alias in hal layer
gdma_get_channel_id(spihost[host]->dma_ctx->tx_dma_chan, (int *)&hal->tx_dma_chan);
gdma_get_channel_id(spihost[host]->dma_ctx->rx_dma_chan, (int *)&hal->rx_dma_chan);
#else
hal->tx_dma_chan = spihost[host]->dma_ctx->tx_dma_chan.chan_id;
hal->rx_dma_chan = spihost[host]->dma_ctx->rx_dma_chan.chan_id;
#endif
#if SOC_CACHE_INTERNAL_MEM_VIA_L1CACHE
size_t alignment;
@@ -266,8 +258,6 @@ esp_err_t spi_slave_initialize(spi_host_device_t host, const spi_bus_config_t *b
//assign the SPI, RX DMA and TX DMA peripheral registers beginning address
spi_slave_hal_config_t hal_config = {
.host_id = host,
.dma_in = SPI_LL_GET_HW(host),
.dma_out = SPI_LL_GET_HW(host)
};
spi_slave_hal_init(hal, &hal_config);
@@ -279,31 +269,7 @@ esp_err_t spi_slave_initialize(spi_host_device_t host, const spi_bus_config_t *b
return ESP_OK;
cleanup:
if (spihost[host]) {
if (spihost[host]->trans_queue) {
vQueueDelete(spihost[host]->trans_queue);
}
if (spihost[host]->ret_queue) {
vQueueDelete(spihost[host]->ret_queue);
}
#ifdef CONFIG_PM_ENABLE
if (spihost[host]->pm_lock) {
esp_pm_lock_release(spihost[host]->pm_lock);
esp_pm_lock_delete(spihost[host]->pm_lock);
}
#endif
}
spi_slave_hal_deinit(&spihost[host]->hal);
if (spihost[host]->dma_enabled) {
free(spihost[host]->dma_ctx->dmadesc_tx);
free(spihost[host]->dma_ctx->dmadesc_rx);
spicommon_dma_chan_free(spihost[host]->dma_ctx);
}
free(spihost[host]);
spihost[host] = NULL;
spicommon_periph_free(host);
spi_slave_free(host);
return ret;
}
@@ -325,8 +291,10 @@ esp_err_t spi_slave_free(spi_host_device_t host)
spicommon_bus_free_io_cfg(&spihost[host]->bus_config);
esp_intr_free(spihost[host]->intr);
#ifdef CONFIG_PM_ENABLE
esp_pm_lock_release(spihost[host]->pm_lock);
esp_pm_lock_delete(spihost[host]->pm_lock);
if (spihost[host]->pm_lock) {
esp_pm_lock_release(spihost[host]->pm_lock);
esp_pm_lock_delete(spihost[host]->pm_lock);
}
#endif //CONFIG_PM_ENABLE
free(spihost[host]);
spihost[host] = NULL;
@@ -553,6 +521,49 @@ esp_err_t SPI_SLAVE_ATTR spi_slave_transmit(spi_host_device_t host, spi_slave_tr
return ESP_OK;
}
#if SOC_GDMA_SUPPORTED // AHB_DMA_V1 and AXI_DMA
// dma is provided by gdma driver on these targets
#define spi_dma_reset gdma_reset
#define spi_dma_start(chan, addr) gdma_start(chan, (intptr_t)(addr))
#endif
static void SPI_SLAVE_ISR_ATTR s_spi_slave_dma_prepare_data(spi_dma_ctx_t *dma_ctx, spi_slave_hal_context_t *hal)
{
if (hal->rx_buffer) {
spicommon_dma_desc_setup_link(dma_ctx->dmadesc_rx, hal->rx_buffer, ((hal->bitlen + 7) / 8), true);
spi_dma_reset(dma_ctx->rx_dma_chan);
spi_slave_hal_hw_prepare_rx(hal->hw);
spi_dma_start(dma_ctx->rx_dma_chan, dma_ctx->dmadesc_rx);
}
if (hal->tx_buffer) {
spicommon_dma_desc_setup_link(dma_ctx->dmadesc_tx, hal->tx_buffer, (hal->bitlen + 7) / 8, false);
spi_dma_reset(dma_ctx->tx_dma_chan);
spi_slave_hal_hw_prepare_tx(hal->hw);
spi_dma_start(dma_ctx->tx_dma_chan, dma_ctx->dmadesc_tx);
}
}
static void SPI_SLAVE_ISR_ATTR s_spi_slave_prepare_data(spi_slave_t *host)
{
spi_slave_hal_context_t *hal = &host->hal;
if (host->dma_enabled) {
s_spi_slave_dma_prepare_data(host->dma_ctx, &host->hal);
} else {
//No DMA. Copy data to transmit buffers.
spi_slave_hal_push_tx_buffer(hal);
spi_slave_hal_hw_fifo_reset(hal, true, false);
}
spi_slave_hal_set_trans_bitlen(hal);
#ifdef CONFIG_IDF_TARGET_ESP32
//SPI Slave mode on ESP32 requires MOSI/MISO enable
spi_slave_hal_enable_data_line(hal);
#endif
}
#if CONFIG_IDF_TARGET_ESP32
static void SPI_SLAVE_ISR_ATTR spi_slave_restart_after_dmareset(void *arg)
{
@@ -654,7 +665,8 @@ static void SPI_SLAVE_ISR_ATTR spi_intr(void *arg)
}
#endif //#if CONFIG_IDF_TARGET_ESP32
spi_slave_hal_prepare_data(hal);
spi_slave_hal_hw_reset(hal);
s_spi_slave_prepare_data(host);
//The slave rx dma get disturbed by unexpected transaction. Only connect the CS when slave is ready.
if (use_dma) {