risc-v/esp32c3: Add ESP32-C3 (G)DMA driver and testing
This commit is contained in:
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commit
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@ -237,6 +237,11 @@ config ESP32C3_SPI2
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select ESP32C3_SPI
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select SPI
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config ESP32C3_DMA
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bool "General DMA (GDMA)"
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default n
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select ARCH_DMA
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config ESP32C3_MWDT0
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bool "Main System Watchdog Timer (Group 0)"
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default n
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@ -542,4 +547,23 @@ config ESP32C3_PARTITION_MOUNT
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endmenu # ESP32C3_PARTITION
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menu "GDMA Configuration"
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depends on ESP32C3_DMA
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config ESP32C3_DMA_M2M_TEST
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bool "Test GDMA M2M"
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default n
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config ESP32C3_DMA_M2M_TEST_LOOPS
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int "Test GDMA M2M loops"
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default 256
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depends on ESP32C3_DMA_M2M_TEST
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config ESP32C3_DMA_M2M_TEST_BUFSIZE
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int "Test GDMA M2M buffer size"
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default 16000
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depends on ESP32C3_DMA_M2M_TEST
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endmenu # GDMA Configuration
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endif # ARCH_CHIP_ESP32C3
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@ -108,6 +108,10 @@ ifeq ($(CONFIG_ESP32C3_DISABLE_STDC_ATOMIC),)
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CHIP_CSRCS += esp32c3_std_atomic.c
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endif
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ifeq ($(CONFIG_ESP32C3_DMA),y)
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CHIP_CSRCS += esp32c3_dma.c
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endif
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ifeq ($(CONFIG_ESP32C3_WIRELESS),y)
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WIRELESS_DRV_UNPACK = esp-wireless-drivers-3rdparty
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WIRELESS_DRV_ID = 2b53111
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516
arch/risc-v/src/esp32c3/esp32c3_dma.c
Normal file
516
arch/risc-v/src/esp32c3/esp32c3_dma.c
Normal file
@ -0,0 +1,516 @@
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/****************************************************************************
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* arch/risc-v/src/esp32c3/esp32c3_dma.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <string.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/irq.h>
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#include <nuttx/kmalloc.h>
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#include <arch/irq.h>
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#include "riscv_arch.h"
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#include "esp32c3_dma.h"
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#include "hardware/esp32c3_dma.h"
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#include "hardware/esp32c3_soc.h"
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#include "hardware/esp32c3_system.h"
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/****************************************************************************
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* Pre-processor Macros
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****************************************************************************/
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#define REG_OFF (DMA_OUT_CONF0_CH1_REG - DMA_OUT_CONF0_CH0_REG)
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#define SET_REG(_r, _ch, _v) putreg32((_v), (_r) + (_ch) * REG_OFF)
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#define GET_REG(_r, _ch, _v) getreg32((_r) + (_ch) * REG_OFF)
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#define SET_BITS(_r, _ch, _b) modifyreg32((_r) + (_ch) * REG_OFF, 0, (_b))
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#define CLR_BITS(_r, _ch, _b) modifyreg32((_r) + (_ch) * REG_OFF, (_b), 0)
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#ifndef MIN
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# define MIN(a, b) (((a) < (b)) ? (a) : (b))
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#endif
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#ifndef ALIGN_UP
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# define ALIGN_UP(num, align) (((num) + ((align) - 1)) & ~((align) - 1))
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static bool g_dma_chan_used[ESP32C3_DMA_CHAN_MAX];
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static sem_t g_dma_exc_sem = SEM_INITIALIZER(1);
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: esp32c3_dma_request
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*
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* Description:
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* Request DMA channel and config it with given parameters.
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*
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* Input Parameters:
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* periph - Peripheral for which the DMA channel request was made
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* tx_prio - Interrupt priority
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* rx_prio - Interrupt flags
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*
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* Returned Value:
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* DMA channel number (>=0) if success or -1 if fail.
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*
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****************************************************************************/
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int32_t esp32c3_dma_request(enum esp32c3_dma_periph_e periph,
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uint32_t tx_prio,
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uint32_t rx_prio)
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{
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int chan;
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DEBUGASSERT((periph < ESP32C3_DMA_PERIPH_NUM) &&
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(periph != ESP32C3_DMA_PERIPH_RD0) &&
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(periph != ESP32C3_DMA_PERIPH_RD1));
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DEBUGASSERT(tx_prio <= ESP32C3_DMA_TX_PRIO_MAX);
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DEBUGASSERT(rx_prio <= ESP32C3_DMA_RX_PRIO_MAX);
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dmainfo("periph=%" PRIu32 " tx_prio=%" PRIu32 " rx_prio=%" PRIu32 "\n",
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(uint32_t)periph, tx_prio, rx_prio);
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nxsem_wait_uninterruptible(&g_dma_exc_sem);
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for (chan = 0; chan < ESP32C3_DMA_CHAN_MAX; chan++)
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{
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if (!g_dma_chan_used[chan])
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{
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g_dma_chan_used[chan] = true;
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break;
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}
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}
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if (chan == ESP32C3_DMA_CHAN_MAX)
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{
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dmaerr("No available GDMA channel for allocation\n");
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nxsem_post(&g_dma_exc_sem);
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return ERROR;
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}
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dmainfo("Allocated channel=%d\n", chan);
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if (periph == ESP32C3_DMA_PERIPH_MEM)
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{
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/* Enable DMA channel M2M mode */
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SET_BITS(DMA_IN_CONF0_CH0_REG, chan, DMA_MEM_TRANS_EN_CH0_M);
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/* Just setting a valid value to the register */
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SET_REG(DMA_OUT_PERI_SEL_CH0_REG, chan, 0);
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SET_REG(DMA_IN_PERI_SEL_CH0_REG, chan, 0);
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}
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else
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{
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/* Disable DMA channel M2M mode */
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CLR_BITS(DMA_IN_CONF0_CH0_REG, chan, DMA_MEM_TRANS_EN_CH0_M);
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/* Connect DMA TX/RX channel to a given peripheral */
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SET_REG(DMA_OUT_PERI_SEL_CH0_REG, chan, periph);
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SET_REG(DMA_IN_PERI_SEL_CH0_REG, chan, periph);
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}
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SET_REG(DMA_OUT_PRI_CH0_REG, chan, tx_prio);
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SET_REG(DMA_IN_PRI_CH0_REG, chan, rx_prio);
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nxsem_post(&g_dma_exc_sem);
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return chan;
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}
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/****************************************************************************
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* Name: esp32c3_dma_setup
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*
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* Description:
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* Set up DMA descriptor with given parameters.
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*
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* Input Parameters:
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* chan - DMA channel
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* tx - true: TX mode; false: RX mode
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* dmadesc - DMA descriptor pointer
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* num - DMA descriptor number
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* pbuf - Buffer pointer
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* len - Buffer length by byte
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*
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* Returned Value:
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* Bind pbuf data bytes.
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*
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****************************************************************************/
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uint32_t esp32c3_dma_setup(int chan, bool tx,
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struct esp32c3_dmadesc_s *dmadesc, uint32_t num,
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uint8_t *pbuf, uint32_t len)
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{
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int i;
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uint32_t regval;
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uint32_t bytes = len;
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uint8_t *pdata = pbuf;
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uint32_t data_len;
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uint32_t buf_len;
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DEBUGASSERT(chan >= 0);
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DEBUGASSERT(dmadesc != NULL);
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DEBUGASSERT(num > 0);
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DEBUGASSERT(pbuf != NULL);
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DEBUGASSERT(len > 0);
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for (i = 0; i < num; i++)
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{
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data_len = MIN(bytes, ESP32C3_DMA_BUFLEN_MAX);
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/* Buffer length must be rounded to next 32-bit boundary. */
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buf_len = ALIGN_UP(data_len, sizeof(uintptr_t));
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dmadesc[i].ctrl = (data_len << ESP32C3_DMA_CTRL_DATALEN_S) |
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(buf_len << ESP32C3_DMA_CTRL_BUFLEN_S) |
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ESP32C3_DMA_CTRL_OWN;
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dmadesc[i].pbuf = pdata;
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dmadesc[i].next = &dmadesc[i + 1];
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bytes -= data_len;
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if (bytes == 0)
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{
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break;
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}
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pdata += data_len;
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}
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dmadesc[i].ctrl |= ESP32C3_DMA_CTRL_EOF;
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dmadesc[i].next = NULL;
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if (tx)
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{
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/* Reset DMA TX channel FSM and FIFO pointer */
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SET_BITS(DMA_OUT_CONF0_CH0_REG, chan, DMA_OUT_RST_CH0_M);
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CLR_BITS(DMA_OUT_CONF0_CH0_REG, chan, DMA_OUT_RST_CH0_M);
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/* Set the descriptor link base address for TX channel */
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regval = (uint32_t)dmadesc & DMA_OUTLINK_ADDR_CH0;
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SET_BITS(DMA_OUT_LINK_CH0_REG, chan, regval);
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}
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else
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{
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/* Reset DMA RX channel FSM and FIFO pointer */
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SET_BITS(DMA_IN_CONF0_CH0_REG, chan, DMA_IN_RST_CH0_M);
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CLR_BITS(DMA_IN_CONF0_CH0_REG, chan, DMA_IN_RST_CH0_M);
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/* Set the descriptor link base address for RX channel */
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regval = (uint32_t)dmadesc & DMA_INLINK_ADDR_CH0;
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SET_BITS(DMA_IN_LINK_CH0_REG, chan, regval);
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}
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return len - bytes;
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}
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/****************************************************************************
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* Name: esp32c3_dma_enable
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*
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* Description:
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* Enable DMA channel transmission.
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*
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* Input Parameters:
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* chan - DMA channel
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* tx - true: TX mode; false: RX mode
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void esp32c3_dma_enable(int chan, bool tx)
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{
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if (tx)
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{
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SET_BITS(DMA_OUT_LINK_CH0_REG, chan, DMA_OUTLINK_START_CH0_M);
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}
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else
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{
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SET_BITS(DMA_IN_LINK_CH0_REG, chan, DMA_INLINK_START_CH0_M);
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}
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}
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/****************************************************************************
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* Name: esp32c3_dma_disable
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*
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* Description:
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* Disable DMA channel transmission.
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*
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* Input Parameters:
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* chan - DMA channel
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* tx - true: TX mode; false: RX mode
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void esp32c3_dma_disable(int chan, bool tx)
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{
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if (tx)
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{
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SET_BITS(DMA_OUT_LINK_CH0_REG, chan, DMA_OUTLINK_STOP_CH0_M);
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}
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else
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{
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SET_BITS(DMA_IN_LINK_CH0_REG, chan, DMA_INLINK_STOP_CH0_M);
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}
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}
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/****************************************************************************
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* Name: esp32c3_dma_wait_idle
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*
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* Description:
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* Wait until transmission ends.
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*
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* Input Parameters:
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* chan - DMA channel
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* tx - true: TX mode; false: RX mode
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void esp32c3_dma_wait_idle(int chan, bool tx)
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{
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uint32_t regval;
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uint32_t regaddr;
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uint32_t waitbits;
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if (tx)
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{
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regaddr = DMA_OUT_LINK_CH0_REG + chan * REG_OFF;
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waitbits = DMA_OUTLINK_PARK_CH0;
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}
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else
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{
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regaddr = DMA_IN_LINK_CH0_REG + chan * REG_OFF;
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waitbits = DMA_INLINK_PARK_CH0;
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}
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do
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{
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regval = getreg32(regaddr);
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}
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while ((waitbits & regval) == 0);
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}
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/****************************************************************************
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* Name: esp32c3_dma_init
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*
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* Description:
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* Initialize DMA driver.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void esp32c3_dma_init(void)
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{
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modifyreg32(SYSTEM_PERIP_CLK_EN1_REG, 0, SYSTEM_DMA_CLK_EN_M);
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modifyreg32(SYSTEM_PERIP_RST_EN1_REG, SYSTEM_DMA_RST_M, 0);
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modifyreg32(DMA_MISC_CONF_REG, 0, DMA_CLK_EN_M);
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}
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/****************************************************************************
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* Name: esp32c3_dma_main
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*
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* Description:
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* ESP32-C3 DMA testing example.
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*
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****************************************************************************/
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#ifdef CONFIG_ESP32C3_DMA_M2M_TEST
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void esp32c3_dma_main(int argc, char *argv[])
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{
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int chan;
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struct esp32c3_dmadesc_s *rx_dmadesc;
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struct esp32c3_dmadesc_s *tx_dmadesc;
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uint8_t *rxbuf;
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uint8_t *txbuf;
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bool success = true;
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const size_t bufsize = CONFIG_ESP32C3_DMA_M2M_TEST_BUFSIZE;
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#if (CONFIG_ESP32C3_DMA_M2M_TEST_BUFSIZE % ESP32C3_DMA_BUFLEN_MAX) > 0
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const size_t dmadesc_num = bufsize / ESP32C3_DMA_BUFLEN_MAX + 1;
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#else
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const size_t dmadesc_num = bufsize / ESP32C3_DMA_BUFLEN_MAX;
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#endif
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syslog(LOG_INFO, "----- BEGIN TEST -----\n");
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rxbuf = kmm_malloc(bufsize);
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if (rxbuf == NULL)
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{
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syslog(LOG_ERR, "Failed to malloc RX buffer\n");
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success = false;
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goto test_end;
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}
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txbuf = kmm_malloc(bufsize);
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if (txbuf == NULL)
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{
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syslog(LOG_ERR, "Failed to malloc TX buffer\n");
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kmm_free(rxbuf);
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success = false;
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goto test_end;
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}
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rx_dmadesc = kmm_malloc(sizeof(struct esp32c3_dmadesc_s) * dmadesc_num);
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if (rx_dmadesc == NULL)
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{
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syslog(LOG_ERR, "Failed to malloc RX DMA descriptor\n");
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kmm_free(txbuf);
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kmm_free(rxbuf);
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success = false;
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goto test_end;
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}
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tx_dmadesc = kmm_malloc(sizeof(struct esp32c3_dmadesc_s) * dmadesc_num);
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if (txbuf == NULL)
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{
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syslog(LOG_ERR, "Failed to malloc TX DMA descriptor\n");
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kmm_free(rx_dmadesc);
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kmm_free(txbuf);
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kmm_free(rxbuf);
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success = false;
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goto test_end;
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}
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esp32c3_dma_init();
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chan = esp32c3_dma_request(ESP32C3_DMA_PERIPH_MEM, 1, 1);
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if (chan < 0)
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{
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syslog(LOG_ERR, "Request DMA channel error\n");
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success = false;
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goto test_end_cleanup;
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}
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for (int i = 1; i <= CONFIG_ESP32C3_DMA_M2M_TEST_LOOPS; ++i)
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{
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const uint8_t watermark = i & UINT8_MAX;
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size_t j = 0;
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/* Prepare buffers for DMA transfer */
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||||
|
||||
memset(rxbuf, 0, bufsize);
|
||||
memset(txbuf, watermark, bufsize);
|
||||
|
||||
/* Setup DMA descriptors.
|
||||
* Intentionally ignore the last byte for TX.
|
||||
*/
|
||||
|
||||
esp32c3_dma_setup(chan, false, rx_dmadesc, dmadesc_num,
|
||||
rxbuf, bufsize);
|
||||
esp32c3_dma_setup(chan, true, tx_dmadesc, dmadesc_num,
|
||||
txbuf, bufsize - 1);
|
||||
|
||||
/* Start DMA transfer */
|
||||
|
||||
esp32c3_dma_enable(chan, false);
|
||||
esp32c3_dma_enable(chan, true);
|
||||
|
||||
/* Wait for DMA transfer to complete */
|
||||
|
||||
esp32c3_dma_wait_idle(chan, true);
|
||||
esp32c3_dma_wait_idle(chan, false);
|
||||
|
||||
/* Verify if last byte on RX buffer is unchanged */
|
||||
|
||||
if (rxbuf[bufsize - 1] != 0)
|
||||
{
|
||||
success = false;
|
||||
goto test_end_cleanup;
|
||||
}
|
||||
|
||||
/* Verify if RX buffer contains expected values */
|
||||
|
||||
for (j = 0; j < bufsize - 1; ++j)
|
||||
{
|
||||
if (rxbuf[j] != watermark)
|
||||
{
|
||||
syslog(LOG_ERR,
|
||||
"DMA-M2M-TEST loop %d fail buf[%zu]=%" PRIu8 "\n",
|
||||
i, j, rxbuf[j]);
|
||||
|
||||
success = false;
|
||||
goto test_end_cleanup;
|
||||
}
|
||||
}
|
||||
|
||||
syslog(LOG_INFO, "DMA-M2M-TEST loop %d OK\n", i);
|
||||
}
|
||||
|
||||
test_end_cleanup:
|
||||
kmm_free(tx_dmadesc);
|
||||
kmm_free(rx_dmadesc);
|
||||
kmm_free(txbuf);
|
||||
kmm_free(rxbuf);
|
||||
|
||||
test_end:
|
||||
syslog(LOG_INFO, "----- END TEST -----\n");
|
||||
|
||||
syslog(LOG_INFO, "\n");
|
||||
|
||||
syslog(LOG_INFO, "----- RESULT: %s -----\n",
|
||||
success ? "SUCCESS" : "FAILED");
|
||||
}
|
||||
#endif
|
223
arch/risc-v/src/esp32c3/esp32c3_dma.h
Normal file
223
arch/risc-v/src/esp32c3/esp32c3_dma.h
Normal file
@ -0,0 +1,223 @@
|
||||
/****************************************************************************
|
||||
* arch/risc-v/src/esp32c3/esp32c3_dma.h
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ARCH_RISCV_SRC_ESP32C3_ESP32C3_DMA_H
|
||||
#define __ARCH_RISCV_SRC_ESP32C3_ESP32C3_DMA_H
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
#define EXTERN extern "C"
|
||||
extern "C"
|
||||
{
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Macros
|
||||
****************************************************************************/
|
||||
|
||||
/* DMA max data length */
|
||||
|
||||
#define ESP32C3_DMA_DATALEN_MAX (0x1000 - 4)
|
||||
|
||||
/* DMA max buffer length */
|
||||
|
||||
#define ESP32C3_DMA_BUFLEN_MAX ESP32C3_DMA_DATALEN_MAX
|
||||
|
||||
/* DMA channel number */
|
||||
|
||||
#define ESP32C3_DMA_CHAN_MAX (3)
|
||||
|
||||
/* DMA RX MAX priority */
|
||||
|
||||
#define ESP32C3_DMA_RX_PRIO_MAX (15)
|
||||
|
||||
/* DMA TX MAX priority */
|
||||
|
||||
#define ESP32C3_DMA_TX_PRIO_MAX (15)
|
||||
|
||||
/* DMA descriptor */
|
||||
|
||||
#define ESP32C3_DMA_CTRL_OWN (1 << 31) /* Owned by DMA */
|
||||
#define ESP32C3_DMA_CTRL_EOF (1 << 30) /* End of frame */
|
||||
#define ESP32C3_DMA_CTRL_ERREOF (1 << 28) /* Received data error */
|
||||
#define ESP32C3_DMA_CTRL_DATALEN_S (12) /* Data length shift */
|
||||
#define ESP32C3_DMA_CTRL_DATALEN_V (0xfff) /* Data length value */
|
||||
#define ESP32C3_DMA_CTRL_BUFLEN_S (0) /* Buffer length shift */
|
||||
#define ESP32C3_DMA_CTRL_BUFLEN_V (0xfff) /* Buffer length value */
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
enum esp32c3_dma_periph_e
|
||||
{
|
||||
ESP32C3_DMA_PERIPH_MEM = -1,
|
||||
ESP32C3_DMA_PERIPH_SPI = 0,
|
||||
ESP32C3_DMA_PERIPH_UCHI0 = 2,
|
||||
ESP32C3_DMA_PERIPH_I2S = 3,
|
||||
ESP32C3_DMA_PERIPH_RD0 = 4,
|
||||
ESP32C3_DMA_PERIPH_RD1 = 5,
|
||||
ESP32C3_DMA_PERIPH_AES = 6,
|
||||
ESP32C3_DMA_PERIPH_SHA = 7,
|
||||
ESP32C3_DMA_PERIPH_ADC = 8,
|
||||
ESP32C3_DMA_PERIPH_NUM,
|
||||
};
|
||||
|
||||
/* DMA descriptor type */
|
||||
|
||||
struct esp32c3_dmadesc_s
|
||||
{
|
||||
uint32_t ctrl; /* DMA control block */
|
||||
uint8_t *pbuf; /* DMA TX/RX buffer address */
|
||||
struct esp32c3_dmadesc_s *next; /* Next DMA descriptor address */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: esp32c3_dma_request
|
||||
*
|
||||
* Description:
|
||||
* Request DMA channel and config it with given parameters.
|
||||
*
|
||||
* Input Parameters:
|
||||
* periph - Peripheral for which the DMA channel request was made
|
||||
* tx_prio - Interrupt priority
|
||||
* rx_prio - Interrupt flags
|
||||
*
|
||||
* Returned Value:
|
||||
* DMA channel number (>=0) if success or -1 if fail.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int32_t esp32c3_dma_request(enum esp32c3_dma_periph_e periph,
|
||||
uint32_t tx_prio,
|
||||
uint32_t rx_prio);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: esp32c3_dma_setup
|
||||
*
|
||||
* Description:
|
||||
* Set up DMA descriptor with given parameters.
|
||||
*
|
||||
* Input Parameters:
|
||||
* chan - DMA channel
|
||||
* tx - true: TX mode; false: RX mode
|
||||
* dmadesc - DMA descriptor pointer
|
||||
* num - DMA descriptor number
|
||||
* pbuf - Buffer pointer
|
||||
* len - Buffer length by byte
|
||||
*
|
||||
* Returned Value:
|
||||
* Bind pbuf data bytes.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
uint32_t esp32c3_dma_setup(int chan, bool tx,
|
||||
struct esp32c3_dmadesc_s *dmadesc, uint32_t num,
|
||||
uint8_t *pbuf, uint32_t len);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: esp32c3_dma_enable
|
||||
*
|
||||
* Description:
|
||||
* Enable DMA channel transmission.
|
||||
*
|
||||
* Input Parameters:
|
||||
* chan - DMA channel
|
||||
* tx - true: TX mode; false: RX mode
|
||||
*
|
||||
* Returned Value:
|
||||
* None.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void esp32c3_dma_enable(int chan, bool tx);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: esp32c3_dma_disable
|
||||
*
|
||||
* Description:
|
||||
* Disable DMA channel transmission.
|
||||
*
|
||||
* Input Parameters:
|
||||
* chan - DMA channel
|
||||
* tx - true: TX mode; false: RX mode
|
||||
*
|
||||
* Returned Value:
|
||||
* None.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void esp32c3_dma_disable(int chan, bool tx);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: esp32c3_dma_wait_idle
|
||||
*
|
||||
* Description:
|
||||
* Wait until transmission ends.
|
||||
*
|
||||
* Input Parameters:
|
||||
* chan - DMA channel
|
||||
* tx - true: TX mode; false: RX mode
|
||||
*
|
||||
* Returned Value:
|
||||
* None.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void esp32c3_dma_wait_idle(int chan, bool tx);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: esp32c3_dma_init
|
||||
*
|
||||
* Description:
|
||||
* Initialize DMA driver.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* None.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void esp32c3_dma_init(void);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#undef EXTERN
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __ARCH_RISCV_SRC_ESP32C3_ESP32C3_DMA_H */
|
3898
arch/risc-v/src/esp32c3/hardware/esp32c3_dma.h
Normal file
3898
arch/risc-v/src/esp32c3/hardware/esp32c3_dma.h
Normal file
File diff suppressed because it is too large
Load Diff
32
boards/risc-v/esp32c3/esp32c3-devkit/configs/dma/defconfig
Normal file
32
boards/risc-v/esp32c3/esp32c3-devkit/configs/dma/defconfig
Normal file
@ -0,0 +1,32 @@
|
||||
#
|
||||
# This file is autogenerated: PLEASE DO NOT EDIT IT.
|
||||
#
|
||||
# You can use "make menuconfig" to make any modifications to the installed .config file.
|
||||
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
|
||||
# modifications.
|
||||
#
|
||||
CONFIG_ARCH="risc-v"
|
||||
CONFIG_ARCH_BOARD="esp32c3-devkit"
|
||||
CONFIG_ARCH_BOARD_ESP32C3_DEVKIT=y
|
||||
CONFIG_ARCH_CHIP="esp32c3"
|
||||
CONFIG_ARCH_CHIP_ESP32C3=y
|
||||
CONFIG_ARCH_CHIP_ESP32C3WROOM02=y
|
||||
CONFIG_ARCH_INTERRUPTSTACK=1536
|
||||
CONFIG_ARCH_RISCV=y
|
||||
CONFIG_ARCH_STACKDUMP=y
|
||||
CONFIG_BOARD_LOOPSPERMSEC=15000
|
||||
CONFIG_BUILTIN=y
|
||||
CONFIG_ESP32C3_DMA=y
|
||||
CONFIG_ESP32C3_DMA_M2M_TEST=y
|
||||
CONFIG_IDLETHREAD_STACKSIZE=2048
|
||||
CONFIG_INTELHEX_BINARY=y
|
||||
CONFIG_LIBC_PERROR_STDOUT=y
|
||||
CONFIG_LIBC_STRERROR=y
|
||||
CONFIG_MAX_TASKS=8
|
||||
CONFIG_PREALLOC_TIMERS=0
|
||||
CONFIG_RAW_BINARY=y
|
||||
CONFIG_START_DAY=29
|
||||
CONFIG_START_MONTH=11
|
||||
CONFIG_START_YEAR=2019
|
||||
CONFIG_UART0_SERIAL_CONSOLE=y
|
||||
CONFIG_USER_ENTRYPOINT="esp32c3_dma_main"
|
Loading…
Reference in New Issue
Block a user