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Merge branch 'bugfix/eth_w5500_io_intr_missed_v4.3' into 'release/v4.3'

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esp_eth: w5500: Improve GPIO interrupt processing (v4.3)

See merge request espressif/esp-idf!13863
This commit is contained in:
David Čermák 2021-06-23 17:54:30 +00:00
commit 6ff1d8c828
2 changed files with 12 additions and 4 deletions
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15
components/esp_eth/src/esp_eth_mac_w5500.c
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@ -267,9 +267,12 @@ static esp_err_t w5500_setup_default(emac_w5500_t *emac)
/* Enable MAC RAW mode for SOCK0, enable MAC filter, no blocking broadcast and multicast */
reg_value = W5500_SMR_MAC_RAW | W5500_SMR_MAC_FILTER;
MAC_CHECK(w5500_write(emac, W5500_REG_SOCK_MR(0), &reg_value, sizeof(reg_value)) == ESP_OK, "write SMR failed", err, ESP_FAIL);
/* Enable receive and send event for SOCK0 */
reg_value = W5500_SIR_RECV | W5500_SIR_SEND;
/* Enable receive event for SOCK0 */
reg_value = W5500_SIR_RECV;
MAC_CHECK(w5500_write(emac, W5500_REG_SOCK_IMR(0), &reg_value, sizeof(reg_value)) == ESP_OK, "write SOCK0 IMR failed", err, ESP_FAIL);
/* Set the interrupt re-assert level to maximum (~1.5ms) to lower the chances of missing it */
uint16_t int_level = __builtin_bswap16(0xFFFF);
MAC_CHECK(w5500_write(emac, W5500_REG_INTLEVEL, &int_level, sizeof(int_level)) == ESP_OK, "write INTLEVEL failed", err, ESP_FAIL);
err:
return ret;
@ -322,8 +325,12 @@ static void emac_w5500_task(void *arg)
uint8_t *buffer = NULL;
uint32_t length = 0;
while (1) {
// block indefinitely until some task notifies me
ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
// check if the task receives any notification
if (ulTaskNotifyTake(pdTRUE, pdMS_TO_TICKS(1000)) == 0 && // if no notification ...
gpio_get_level(emac->int_gpio_num) != 0) { // ...and no interrupt asserted
continue; // -> just continue to check again
}
/* read interrupt status */
w5500_read(emac, W5500_REG_SOCK_IR(0), &status, sizeof(status));
/* packet received */

1
components/esp_eth/src/w5500.h
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@ -33,6 +33,7 @@
#define W5500_REG_MR W5500_MAKE_MAP(0x0000, W5500_BSB_COM_REG) // Mode
#define W5500_REG_MAC W5500_MAKE_MAP(0x0009, W5500_BSB_COM_REG) // MAC Address
#define W5500_REG_INTLEVEL W5500_MAKE_MAP(0x0013, W5500_BSB_COM_REG) // Interrupt Level Timeout
#define W5500_REG_IR W5500_MAKE_MAP(0x0015, W5500_BSB_COM_REG) // Interrupt
#define W5500_REG_IMR W5500_MAKE_MAP(0x0016, W5500_BSB_COM_REG) // Interrupt Mask
#define W5500_REG_SIR W5500_MAKE_MAP(0x0017, W5500_BSB_COM_REG) // Socket Interrupt