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Merge branch 'feature/i2c_sleep' into 'master'
feat(i2c): Support i2c sleep retention on esp32c6/h2 Closes IDF-8458 See merge request espressif/esp-idf!28885
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components/driver/test_apps/legacy_i2c_driver/main/test_legacy_i2c_sleep_retention.c
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,194 @@ | ||
| /* | ||
| * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD | ||
| * | ||
| * SPDX-License-Identifier: Unlicense OR CC0-1.0 | ||
| */ | ||
|
|
||
| #include <stdio.h> | ||
| #include <string.h> | ||
| #include "unity.h" | ||
| #include "unity_config.h" | ||
| #include "driver/i2c.h" | ||
| #include "esp_attr.h" | ||
| #include "esp_log.h" | ||
| #include "esp_system.h" | ||
| #include "hal/i2c_types.h" | ||
| #include "test_utils.h" | ||
| #include "esp_sleep.h" | ||
| #include "esp_private/sleep_cpu.h" | ||
| #include "esp_ieee802154.h" | ||
| #include "esp_pm.h" | ||
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|
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| #define DATA_LENGTH 100 /*!<Data buffer length for test buffer*/ | ||
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| #define I2C_SLAVE_SCL_IO 4 /*!<gpio number for i2c slave clock */ | ||
| #define I2C_SLAVE_SDA_IO 5 /*!<gpio number for i2c slave data */ | ||
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|
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| #define I2C_SLAVE_NUM I2C_NUM_0 /*!<I2C port number for slave dev */ | ||
| #define I2C_SLAVE_TX_BUF_LEN (2*DATA_LENGTH) /*!<I2C slave tx buffer size */ | ||
| #define I2C_SLAVE_RX_BUF_LEN (2*DATA_LENGTH) /*!<I2C slave rx buffer size */ | ||
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| #define I2C_MASTER_SCL_IO 4 /*!<gpio number for i2c master clock */ | ||
| #define I2C_MASTER_SDA_IO 5 /*!<gpio number for i2c master data */ | ||
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| #define I2C_MASTER_NUM I2C_NUM_0 /*!< I2C port number for master dev */ | ||
| #define I2C_MASTER_TX_BUF_DISABLE 0 /*!< I2C master do not need buffer */ | ||
| #define I2C_MASTER_RX_BUF_DISABLE 0 /*!< I2C master do not need buffer */ | ||
| #define I2C_MASTER_FREQ_HZ 100000 /*!< I2C master clock frequency */ | ||
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| #define ESP_SLAVE_ADDR 0x28 /*!< ESP32 slave address, you can set any 7bit value */ | ||
| #define WRITE_BIT I2C_MASTER_WRITE /*!< I2C master write */ | ||
| #define ACK_CHECK_EN 0x1 /*!< I2C master will check ack from slave*/ | ||
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| static esp_err_t i2c_master_write_slave(i2c_port_t i2c_num, uint8_t *data_wr, size_t size) | ||
| { | ||
| i2c_cmd_handle_t cmd = i2c_cmd_link_create(); | ||
| i2c_master_start(cmd); | ||
| TEST_ESP_OK(i2c_master_write_byte(cmd, ( ESP_SLAVE_ADDR << 1 ) | WRITE_BIT, ACK_CHECK_EN)); | ||
| TEST_ESP_OK(i2c_master_write(cmd, data_wr, size, ACK_CHECK_EN)); | ||
| TEST_ESP_OK(i2c_master_stop(cmd)); | ||
| esp_err_t ret = i2c_master_cmd_begin(i2c_num, cmd, 5000 / portTICK_PERIOD_MS); | ||
| i2c_cmd_link_delete(cmd); | ||
| return ret; | ||
| } | ||
|
|
||
| static i2c_config_t i2c_master_init(void) | ||
| { | ||
| i2c_config_t conf_master = { | ||
| .mode = I2C_MODE_MASTER, | ||
| .sda_pullup_en = GPIO_PULLUP_ENABLE, | ||
| .scl_pullup_en = GPIO_PULLUP_ENABLE, | ||
| .master.clk_speed = I2C_MASTER_FREQ_HZ, | ||
| .sda_io_num = I2C_MASTER_SDA_IO, | ||
| .scl_io_num = I2C_MASTER_SCL_IO, | ||
| .clk_flags = 0, | ||
| }; | ||
| return conf_master; | ||
| } | ||
|
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| static i2c_config_t i2c_slave_init(void) | ||
| { | ||
| i2c_config_t conf_slave = { | ||
| .mode = I2C_MODE_SLAVE, | ||
| .sda_io_num = I2C_SLAVE_SDA_IO, | ||
| .scl_io_num = I2C_SLAVE_SCL_IO, | ||
| .sda_pullup_en = GPIO_PULLUP_ENABLE, | ||
| .scl_pullup_en = GPIO_PULLUP_ENABLE, | ||
| .slave.addr_10bit_en = 0, | ||
| .slave.slave_addr = ESP_SLAVE_ADDR, | ||
| }; | ||
| return conf_slave; | ||
| } | ||
|
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| // print the reading buffer | ||
| static void disp_buf(uint8_t *buf, int len) | ||
| { | ||
| int i; | ||
| for (i = 0; i < len; i++) { | ||
| printf("%02x ", buf[i]); | ||
| if (( i + 1 ) % 16 == 0) { | ||
| printf("\n"); | ||
| } | ||
| } | ||
| printf("\n"); | ||
| } | ||
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| static void i2c_master_write_sleep_test(void) | ||
| { | ||
| uint8_t *data_wr = (uint8_t *) malloc(DATA_LENGTH); | ||
| int i; | ||
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| i2c_config_t conf_master = i2c_master_init(); | ||
| TEST_ESP_OK(i2c_param_config(I2C_MASTER_NUM, &conf_master)); | ||
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| TEST_ESP_OK(i2c_driver_install(I2C_MASTER_NUM, I2C_MODE_MASTER, | ||
| I2C_MASTER_RX_BUF_DISABLE, | ||
| I2C_MASTER_TX_BUF_DISABLE, 0)); | ||
| unity_wait_for_signal("i2c slave init finish"); | ||
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| unity_send_signal("master write and sleep"); | ||
| for (i = 0; i < DATA_LENGTH; i++) { | ||
| data_wr[i] = i; | ||
| } | ||
| i2c_master_write_slave(I2C_MASTER_NUM, data_wr, DATA_LENGTH); | ||
| disp_buf(data_wr, i + 1); | ||
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| TEST_ESP_OK(esp_ieee802154_enable()); | ||
| TEST_ESP_OK(sleep_cpu_configure(true)); | ||
| TEST_ESP_OK(esp_sleep_enable_timer_wakeup(3 * 1000 * 1000)); | ||
| TEST_ESP_OK(esp_light_sleep_start()); | ||
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| printf("Waked up!!\n"); | ||
| unity_wait_for_signal("i2c slave receive once"); | ||
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| for (i = 0; i < DATA_LENGTH; i++) { | ||
| data_wr[i] = i; | ||
| } | ||
| i2c_master_write_slave(I2C_MASTER_NUM, data_wr, DATA_LENGTH); | ||
| disp_buf(data_wr, i + 1); | ||
| unity_send_signal("master write again"); | ||
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| free(data_wr); | ||
| unity_wait_for_signal("ready to delete"); | ||
| TEST_ESP_OK(sleep_cpu_configure(false)); | ||
| TEST_ESP_OK(esp_ieee802154_disable()); | ||
| TEST_ESP_OK(i2c_driver_delete(I2C_MASTER_NUM)); | ||
| } | ||
|
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| static void i2c_slave_read_sleep_test(void) | ||
| { | ||
| uint8_t *data_rd = (uint8_t *) malloc(DATA_LENGTH); | ||
| int size_rd = 0; | ||
| int len = 0; | ||
|
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| i2c_config_t conf_slave = i2c_slave_init(); | ||
| TEST_ESP_OK(i2c_param_config( I2C_SLAVE_NUM, &conf_slave)); | ||
| TEST_ESP_OK(i2c_driver_install(I2C_SLAVE_NUM, I2C_MODE_SLAVE, | ||
| I2C_SLAVE_RX_BUF_LEN, | ||
| I2C_SLAVE_TX_BUF_LEN, 0)); | ||
| unity_send_signal("i2c slave init finish"); | ||
|
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| unity_wait_for_signal("master write and sleep"); | ||
| while (1) { | ||
| len = i2c_slave_read_buffer( I2C_SLAVE_NUM, data_rd + size_rd, DATA_LENGTH, 10000 / portTICK_PERIOD_MS); | ||
| if (len == 0) { | ||
| break; | ||
| } | ||
| size_rd += len; | ||
| } | ||
| disp_buf(data_rd, size_rd); | ||
| for (int i = 0; i < size_rd; i++) { | ||
| TEST_ASSERT(data_rd[i] == i); | ||
| } | ||
|
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| TEST_ESP_OK(esp_ieee802154_enable()); | ||
| TEST_ESP_OK(sleep_cpu_configure(true)); | ||
| TEST_ESP_OK(esp_sleep_enable_timer_wakeup(1 * 1000 * 1000)); | ||
| TEST_ESP_OK(esp_light_sleep_start()); | ||
|
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| unity_send_signal("i2c slave receive once"); | ||
| unity_wait_for_signal("master write again"); | ||
|
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| memset(data_rd, 0, DATA_LENGTH); | ||
| size_rd = 0; | ||
| while (1) { | ||
| len = i2c_slave_read_buffer( I2C_SLAVE_NUM, data_rd + size_rd, DATA_LENGTH, 10000 / portTICK_PERIOD_MS); | ||
| if (len == 0) { | ||
| break; | ||
| } | ||
| size_rd += len; | ||
| } | ||
| disp_buf(data_rd, size_rd); | ||
| for (int i = 0; i < size_rd; i++) { | ||
| TEST_ASSERT(data_rd[i] == i); | ||
| } | ||
|
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| free(data_rd); | ||
| unity_send_signal("ready to delete"); | ||
| TEST_ESP_OK(sleep_cpu_configure(false)); | ||
| TEST_ESP_OK(esp_ieee802154_disable()); | ||
| TEST_ESP_OK(i2c_driver_delete(I2C_SLAVE_NUM)); | ||
| } | ||
|
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| TEST_CASE_MULTIPLE_DEVICES("I2C legacy sleep retention test", "[i2c][test_env=generic_multi_device][timeout=250]", i2c_master_write_sleep_test, i2c_slave_read_sleep_test); |
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5 changes: 5 additions & 0 deletions
5
components/driver/test_apps/legacy_i2c_driver/sdkconfig.ci.sleep_retention
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| CONFIG_PM_ENABLE=y | ||
| CONFIG_PM_POWER_DOWN_CPU_IN_LIGHT_SLEEP=y | ||
| CONFIG_FREERTOS_USE_TICKLESS_IDLE=y | ||
| CONFIG_IEEE802154_ENABLED=y | ||
| CONFIG_IEEE802154_SLEEP_ENABLE=y |
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