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wolfTPM
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flexibility for I2C_MASTER_NUM, add settings comments

pull/351/head
gojimmypi 2024-05-13 11:43:33 -07:00
parent fb19d7a0e1
commit 4f3b57a6e2
3 changed files with 33 additions and 4 deletions
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15
IDE/Espressif/components/wolfssl/include/user_settings.h
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@ -656,11 +656,24 @@ Turn on timer debugging (used when CPU cycles not available)
#define TPM_TIMEOUT_TRIES 10000
/* If not defined here, TPM_I2C_TRIES is set to a default value of 10 */
/* TPM_I2C_TRIES 10 */
/* #define TPM_I2C_TRIES 10 */
/* If not defined here, I2C_MASTER_FREQ_HZ is 100000
* Do not exceed a value of 400000 */
/* #define I2C_MASTER_FREQ_HZ 100000 */
/* Examples may have a main() function, we'll have oour own: */
#define NO_MAIN_DRIVER
/* I2C GPIO settings are defined in idf.py menuconfig
*
* CONFIG_I2C_MASTER_SCL (default SCL GPIO pin is 19)
* CONFIG_I2C_MASTER_SDA (default SDA GPIO pin is 18)
*/
/* The default I2C_MASTER_NUM is 0 but can be overridden: */
/* #define I2C_MASTER_NUM 0 */
/* I2C_MASTER_FREQ_HZ notes:
*
* Although the Infineon supports higher speeds, the ESP32 does not.

2
hal/tpm_io.c
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@ -69,6 +69,8 @@
#include "hal/tpm_io_infineon.c"
#elif defined(WOLFTPM_MICROCHIP_HARMONY)
#include "hal/tpm_io_microchip.c"
#elif defined(WOLFSSL_ESPIDF)
#include "hal/tpm_io_espressif.c"
#endif
#if !defined(WOLFTPM_I2C) && !defined(WOLFTPM_MMIO)

20
hal/tpm_io_espressif.c
View File

@ -74,10 +74,14 @@
#include <driver/i2c_master.h>
#endif
#ifndef CONFIG_SOC_I2C_SUPPORTED
#error "It appears I2C is not supported. Please check sdkconfig."
#endif
/* GPIO number used for I2C master clock */
#ifdef CONFIG_I2C_MASTER_SCL
/* Yellow wire Clock */
#define I2C_MASTER_SCL_IO CONFIG_I2C_MASTER_SCL
#define I2C_MASTER_SCL_IO CONFIG_I2C_MASTER_SCL
#else
/* There should have been a Kconfig.projbuild file in the ./main
* directory to set I2C parameters in the sdkconfig project file. */
@ -87,7 +91,7 @@
/* GPIO number used for I2C master data */
#ifdef CONFIG_I2C_MASTER_SDA
/* Orange wire */
#define I2C_MASTER_SDA_IO CONFIG_I2C_MASTER_SDA
#define I2C_MASTER_SDA_IO CONFIG_I2C_MASTER_SDA
#else
/* There should have been a Kconfig.projbuild file in the ./main
* directory to set I2C parameters in the sdkconfig project file. */
@ -96,7 +100,9 @@
/* I2C master i2c port number,
* the number of i2c peripheral interfaces available will depend on the chip */
#define I2C_MASTER_NUM 0
#ifndef I2C_MASTER_NUM
#define I2C_MASTER_NUM 0
#endif
/* I2C master clock frequency
* Typically, an I2C slave device has a 7-bit address or 10-bit address.
@ -184,11 +190,19 @@ static esp_err_t esp_i2c_master_init(void)
int i2c_master_port = I2C_MASTER_NUM;
esp_err_t ret = ESP_OK;
/* I2C port number, can be I2C_NUM_0 ~ (I2C_NUM_MAX-1). */
if (I2C_MASTER_NUM >= I2C_NUM_MAX) {
ESP_LOGW(TAG, "Warning: I2C_MASTER_NUM value %d exceeds (I2C_NUM_MAX-1)"
" %d ", I2C_MASTER_NUM, I2C_NUM_MAX);
}
ESP_LOGI(TAG, "esp_i2c_master_init");
ESP_LOGI(TAG, "I2C_MASTER_FREQ_HZ = %d", (int)I2C_MASTER_FREQ_HZ);
ESP_LOGI(TAG, "I2C_READ_WAIT_TICKS = %d", (int)I2C_READ_WAIT_TICKS);
ESP_LOGI(TAG, "I2C_WRITE_WAIT_TICKS = %d", (int)I2C_WRITE_WAIT_TICKS);
ESP_LOGI(TAG, "I2C_MASTER_TIMEOUT_MS = %d", (int)I2C_MASTER_TIMEOUT_MS);
ESP_LOGI(TAG, "I2C_MASTER_NUM = %d", (int)I2C_MASTER_NUM);
ESP_LOGI(TAG, "I2C_MASTER_SCL_IO = %d", (int)I2C_MASTER_SCL_IO);
ESP_LOGI(TAG, "I2C_MASTER_SDA_IO = %d", (int)I2C_MASTER_SDA_IO);
conf.mode = I2C_MODE_MASTER;
conf.sda_io_num = I2C_MASTER_SDA_IO;