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fix(driver_spi): fixed slave hd append mode potential data loss working over weeks

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This commit is contained in:
wanckl
2024-09-29 20:29:08 +08:00
parent 9b7bbb1f0c
commit 3100fb6f1b
3 changed files with 17 additions and 16 deletions
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27
components/esp_driver_spi/src/gpspi/spi_slave_hd.c
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@@ -459,6 +459,9 @@ static IRAM_ATTR void spi_slave_hd_append_tx_isr(void *arg)
if (!trans_finish) {
break;
}
portENTER_CRITICAL_ISR(&host->int_spinlock);
hal->tx_used_desc_cnt--;
portEXIT_CRITICAL_ISR(&host->int_spinlock);
bool ret_queue = true;
if (callback->cb_sent) {
@@ -500,7 +503,11 @@ static IRAM_ATTR void spi_slave_hd_append_rx_isr(void *arg)
if (!trans_finish) {
break;
}
portENTER_CRITICAL_ISR(&host->int_spinlock);
hal->rx_used_desc_cnt--;
portEXIT_CRITICAL_ISR(&host->int_spinlock);
ret_priv_trans.trans->trans_len = trans_len;
#if SOC_CACHE_INTERNAL_MEM_VIA_L1CACHE //invalidate here to let user access rx data in post_cb if possible
uint16_t alignment = host->internal_mem_align_size;
uint32_t buff_len = (ret_priv_trans.trans->len + alignment - 1) & (~(alignment - 1));
@@ -646,8 +653,7 @@ esp_err_t s_spi_slave_hd_append_txdma(spi_slave_hd_slot_t *host, uint8_t *data,
//Check if there are enough available DMA descriptors for software to use
int num_required = (len + LLDESC_MAX_NUM_PER_DESC - 1) / LLDESC_MAX_NUM_PER_DESC;
int not_recycled_desc_num = hal->tx_used_desc_cnt - hal->tx_recycled_desc_cnt;
int available_desc_num = hal->dma_desc_num - not_recycled_desc_num;
int available_desc_num = hal->dma_desc_num - hal->tx_used_desc_cnt;
if (num_required > available_desc_num) {
return ESP_ERR_INVALID_STATE;
}
@@ -655,8 +661,7 @@ esp_err_t s_spi_slave_hd_append_txdma(spi_slave_hd_slot_t *host, uint8_t *data,
spicommon_dma_desc_setup_link(hal->tx_cur_desc->desc, data, len, false);
hal->tx_cur_desc->arg = arg;
if (!hal->tx_dma_started) {
hal->tx_dma_started = true;
if (!hal->tx_used_desc_cnt) {
//start a link
hal->tx_dma_tail = hal->tx_cur_desc;
spi_dma_reset(host->dma_ctx->tx_dma_chan);
@@ -670,8 +675,10 @@ esp_err_t s_spi_slave_hd_append_txdma(spi_slave_hd_slot_t *host, uint8_t *data,
}
//Move the current descriptor pointer according to the number of the linked descriptors
portENTER_CRITICAL(&host->int_spinlock);
hal->tx_used_desc_cnt += num_required;
portEXIT_CRITICAL(&host->int_spinlock);
for (int i = 0; i < num_required; i++) {
hal->tx_used_desc_cnt++;
hal->tx_cur_desc++;
if (hal->tx_cur_desc == hal->dmadesc_tx + hal->dma_desc_num) {
hal->tx_cur_desc = hal->dmadesc_tx;
@@ -687,8 +694,7 @@ esp_err_t s_spi_slave_hd_append_rxdma(spi_slave_hd_slot_t *host, uint8_t *data,
//Check if there are enough available dma descriptors for software to use
int num_required = (len + LLDESC_MAX_NUM_PER_DESC - 1) / LLDESC_MAX_NUM_PER_DESC;
int not_recycled_desc_num = hal->rx_used_desc_cnt - hal->rx_recycled_desc_cnt;
int available_desc_num = hal->dma_desc_num - not_recycled_desc_num;
int available_desc_num = hal->dma_desc_num - hal->rx_used_desc_cnt;
if (num_required > available_desc_num) {
return ESP_ERR_INVALID_STATE;
}
@@ -696,8 +702,7 @@ esp_err_t s_spi_slave_hd_append_rxdma(spi_slave_hd_slot_t *host, uint8_t *data,
spicommon_dma_desc_setup_link(hal->rx_cur_desc->desc, data, len, false);
hal->rx_cur_desc->arg = arg;
if (!hal->rx_dma_started) {
hal->rx_dma_started = true;
if (!hal->rx_used_desc_cnt) {
//start a link
hal->rx_dma_tail = hal->rx_cur_desc;
spi_dma_reset(host->dma_ctx->rx_dma_chan);
@@ -711,8 +716,10 @@ esp_err_t s_spi_slave_hd_append_rxdma(spi_slave_hd_slot_t *host, uint8_t *data,
}
//Move the current descriptor pointer according to the number of the linked descriptors
portENTER_CRITICAL(&host->int_spinlock);
hal->rx_used_desc_cnt += num_required;
portEXIT_CRITICAL(&host->int_spinlock);
for (int i = 0; i < num_required; i++) {
hal->rx_used_desc_cnt++;
hal->rx_cur_desc++;
if (hal->rx_cur_desc == hal->dmadesc_rx + hal->dma_desc_num) {
hal->rx_cur_desc = hal->dmadesc_rx;