C++ refactoring (#91)

2024-11-26 17:51:05 +01:00
parent d06137ba76
commit ca5d4b8226
159 changed files with 904 additions and 1086 deletions
@@ -0,0 +1,191 @@
+#ifdef ESP_TARGET
+
+#include "I2c.h"
+#include "Log.h"
+#include "Mutex.h"
+
+#include <esp_check.h>
+
+namespace tt::hal::i2c {
+
+typedef struct Data {
+    Mutex mutex;
+    bool isConfigured = false;
+    bool isStarted = false;
+    Configuration configuration;
+} Data;
+
+static Data dataArray[I2C_NUM_MAX];
+
+#define TAG "i2c"
+
+void printInfo(const Data& data) {
+    TT_LOG_V(TAG, "I2C info for port %d", data.configuration.port);
+    TT_LOG_V(TAG, "  isStarted: %d", data.isStarted);
+    TT_LOG_V(TAG, "  isConfigured: %d", data.isConfigured);
+    TT_LOG_V(TAG, "  initMode: %d", data.configuration.initMode);
+    TT_LOG_V(TAG, "  canReinit: %d", data.configuration.canReinit);
+    TT_LOG_V(TAG, "  hasMutableConfiguration: %d", data.configuration.hasMutableConfiguration);
+    TT_LOG_V(TAG, "  SDA pin: %d", data.configuration.config.sda_io_num);
+    TT_LOG_V(TAG, "  SCL pin: %d", data.configuration.config.scl_io_num);
+}
+
+bool init(const std::vector<i2c::Configuration>& configurations) {
+   TT_LOG_I(TAG, "Init");
+   for (const auto& configuration: configurations) {
+       if (configuration.config.mode != I2C_MODE_MASTER) {
+           TT_LOG_E(TAG, "Currently only master mode is supported");
+           return false;
+       }
+       Data& data = dataArray[configuration.port];
+       data.configuration = configuration;
+       data.isConfigured = true;
+   }
+
+   for (const auto& config: configurations) {
+       printInfo(dataArray[config.port]);
+       if (config.initMode == InitByTactility) {
+           if (!start(config.port)) {
+               return false;
+           }
+       } else if (config.initMode == InitByExternal) {
+           dataArray[config.port].isStarted = true;
+       }
+   }
+
+   return true;
+}
+
+static bool configure_locked(i2c_port_t port, const i2c_config_t& configuration) {
+    Data& data = dataArray[port];
+    if (data.isStarted) {
+        TT_LOG_E(TAG, "(%d) Cannot reconfigure while interface is started", port);
+        return ESP_ERR_INVALID_STATE;
+    } else if (!data.configuration.hasMutableConfiguration) {
+        TT_LOG_E(TAG, "(%d) Mutation not allowed by original configuration", port);
+        return ESP_ERR_NOT_ALLOWED;
+    } else {
+        data.configuration.config = configuration;
+        return ESP_OK;
+    }
+}
+
+bool configure(i2c_port_t port, const i2c_config_t& configuration) {
+    lock(port);
+    bool result = configure_locked(port, configuration);
+    unlock(port);
+    return result;
+}
+
+static bool startLocked(i2c_port_t port) {
+    Data& data = dataArray[port];
+    printInfo(data);
+    Configuration& config = data.configuration;
+
+    if (data.isStarted) {
+        TT_LOG_E(TAG, "(%d) Starting: Already started", port);
+        return false;
+    }
+
+    if (!data.isConfigured) {
+        TT_LOG_E(TAG, "(%d) Starting: Not configured", port);
+        return false;
+    }
+
+    esp_err_t result = i2c_param_config(port, &config.config);
+    if (result != ESP_OK) {
+        TT_LOG_E(TAG, "(%d) Starting: Failed to configure: %s", port, esp_err_to_name(result));
+        return false;
+    }
+
+    result = i2c_driver_install(port, config.config.mode, 0, 0, 0);
+    if (result != ESP_OK) {
+        TT_LOG_E(TAG, "(%d) Starting: Failed to install driver: %s", port, esp_err_to_name(result));
+        return false;
+    } else {
+        data.isStarted = true;
+    }
+
+    TT_LOG_I(TAG, "(%d) Started", port);
+    return true;
+}
+
+bool start(i2c_port_t port) {
+    lock(port);
+    bool result = startLocked(port);
+    unlock(port);
+    return result;
+}
+
+static bool stopLocked(i2c_port_t port) {
+    Data& data = dataArray[port];
+    Configuration& config = data.configuration;
+
+    if (!config.canReinit) {
+        TT_LOG_E(TAG, "(%d) Stopping: Not allowed to re-init", port);
+        return false;
+    }
+
+    if (!data.isStarted) {
+        TT_LOG_E(TAG, "(%d) Stopping: Not started", port);
+        return false;
+    }
+
+    esp_err_t result = i2c_driver_delete(port);
+    if (result != ESP_OK) {
+        TT_LOG_E(TAG, "(%d) Stopping: Failed to delete driver: %s", port, esp_err_to_name(result));
+        return false;
+    } else {
+        data.isStarted = false;
+    }
+
+    TT_LOG_I(TAG, "(%d) Stopped", port);
+    return true;
+}
+
+bool stop(i2c_port_t port) {
+    lock(port);
+    bool result = stopLocked(port);
+    unlock(port);
+    return result;
+}
+
+bool isStarted(i2c_port_t port) {
+    lock(port);
+    bool started = dataArray[port].isStarted;
+    unlock(port);
+    return started;
+}
+
+bool masterRead(i2c_port_t port, uint8_t address, uint8_t* data, size_t dataSize) {
+    lock(port);
+    esp_err_t result = i2c_master_read_from_device(port, address, data, dataSize, dataArray[port].configuration.timeout);
+    unlock(port);
+    return result == ESP_OK;
+}
+
+bool masterWrite(i2c_port_t port, uint16_t address, const uint8_t* data, uint16_t dataSize) {
+    lock(port);
+    esp_err_t result = i2c_master_write_to_device(port, address, data, dataSize, dataArray[port].configuration.timeout);
+    unlock(port);
+    return result == ESP_OK;
+}
+
+bool masterWriteRead(i2c_port_t port, uint8_t address, const uint8_t* writeData, size_t writeDataSize, uint8_t* readData, size_t readDataSize) {
+    lock(port);
+    esp_err_t result = i2c_master_write_read_device(port, address, writeData, writeDataSize, readData, readDataSize, dataArray[port].configuration.timeout);
+    unlock(port);
+    return result == ESP_OK;
+}
+
+TtStatus lock(i2c_port_t port, uint32_t timeout) {
+    return dataArray[port].mutex.acquire(timeout);
+}
+
+TtStatus unlock(i2c_port_t port) {
+    return dataArray[port].mutex.release();
+}
+
+} // namespace
+
+#endif
@@ -0,0 +1,44 @@
+#pragma once
+
+#include "I2cCompat.h"
+#include "CoreTypes.h"
+#include <climits>
+#include <string>
+#include <vector>
+
+namespace tt::hal::i2c {
+
+typedef enum {
+    InitByTactility, // Tactility will initialize it in the correct bootup phase
+    InitByExternal, // The device is already initialized and Tactility should assume it works
+    InitDisabled // Not initialized by default
+} InitMode;
+
+typedef struct {
+    std::string name;
+    /** The port to operate on */
+    i2c_port_t port;
+    /** Whether this bus should be initialized when device starts up */
+    InitMode initMode;
+    /** Whether this bus can stopped and re-started. */
+    bool canReinit;
+    /** Whether configuration can be changed. */
+    bool hasMutableConfiguration;
+    /** Read/write timeout (not related to mutex locking mechanism) */
+    unsigned long timeout;
+    /** Configuration that must be valid when initAtBoot is set to true. */
+    i2c_config_t config;
+} Configuration;
+
+bool init(const std::vector<i2c::Configuration>& configurations);
+
+bool start(i2c_port_t port);
+bool stop(i2c_port_t port);
+bool isStarted(i2c_port_t port);
+bool masterRead(i2c_port_t port, uint8_t address, uint8_t* data, size_t dataSize);
+bool masterWrite(i2c_port_t port, uint16_t address, const uint8_t* data, uint16_t dataSize);
+bool masterWriteRead(i2c_port_t port, uint8_t address, const uint8_t* writeData, size_t writeDataSize, uint8_t* readData, size_t readDataSize);
+TtStatus lock(i2c_port_t port, uint32_t timeout = UINT_MAX);
+TtStatus unlock(i2c_port_t port);
+
+} // namespace
@@ -0,0 +1,39 @@
+#pragma once
+
+#ifdef ESP_TARGET
+#include <hal/i2c_types.h>
+#include <driver/i2c.h>
+#else
+
+#include <cstdint>
+
+typedef int esp_err_t;
+
+typedef enum {
+    I2C_NUM_0 = 0,
+    I2C_NUM_1,
+    LP_I2C_NUM_0,
+    I2C_NUM_MAX,
+} i2c_port_t;
+
+typedef enum{
+    I2C_MODE_MASTER,
+    I2C_MODE_MAX,
+} i2c_mode_t;
+
+typedef struct {
+    i2c_mode_t mode;
+    int sda_io_num;
+    int scl_io_num;
+    bool sda_pullup_en;
+    bool scl_pullup_en;
+
+    union {
+        struct {
+            uint32_t clk_speed;
+        } master;
+    };
+    uint32_t clk_flags;
+} i2c_config_t;
+
+#endif
@@ -0,0 +1,102 @@
+#ifndef ESP_TARGET
+
+/**
+ * This code is based on i2c_manager from https://github.com/ropg/i2c_manager/blob/master/i2c_manager/i2c_manager.c (original has MIT license)
+ */
+#include "I2c.h"
+#include "Log.h"
+#include "Mutex.h"
+
+namespace tt::hal::i2c {
+
+typedef struct Data {
+    Mutex mutex;
+    bool isConfigured = false;
+    bool isStarted = false;
+    Configuration configuration;
+} Data;
+
+static Data dataArray[I2C_NUM_MAX];
+
+#define TAG "i2c"
+
+bool init(const std::vector<i2c::Configuration>& configurations) {
+   TT_LOG_I(TAG, "Init");
+   for (const auto& configuration: configurations) {
+       Data& data = dataArray[configuration.port];
+       data.configuration = configuration;
+       data.isConfigured = true;
+   }
+
+   for (const auto& config: configurations) {
+       if (config.initMode == InitByTactility && !start(config.port)) {
+           return false;
+       } else if (config.initMode == InitByExternal) {
+           dataArray[config.port].isStarted = true;
+       }
+   }
+
+   return true;
+}
+
+static bool configureLocked(i2c_port_t port, const i2c_config_t& configuration) {
+    Data& data = dataArray[port];
+    if (data.isStarted) {
+        TT_LOG_E(TAG, "(%d) Cannot reconfigure while interface is started", port);
+        return false;
+    } else if (!data.configuration.hasMutableConfiguration) {
+        TT_LOG_E(TAG, "(%d) Mutation not allowed by original configuration", port);
+        return false;
+    } else {
+        data.configuration.config = configuration;
+        return true;
+    }
+}
+
+esp_err_t configure(i2c_port_t port, const i2c_config_t& configuration) {
+    lock(port);
+    bool result = configureLocked(port, configuration);
+    unlock(port);
+    return result;
+}
+
+bool start(i2c_port_t port) {
+    lock(port);
+    dataArray[port].isStarted = true;
+    unlock(port);
+    return true;
+}
+
+bool stop(i2c_port_t port) {
+    lock(port);
+    dataArray[port].isStarted = false;
+    unlock(port);
+    return true;
+}
+
+bool isStarted(i2c_port_t port) {
+    lock(port);
+    bool started = dataArray[port].isStarted;
+    unlock(port);
+    return started;
+}
+
+bool read(i2c_port_t port, uint16_t address, uint32_t reg, uint8_t* buffer, uint16_t size) {
+    return false;
+}
+
+bool write(i2c_port_t port, uint16_t address, uint32_t reg, const uint8_t* buffer, uint16_t size) {
+    return false;
+}
+
+TtStatus lock(i2c_port_t port, uint32_t timeout) {
+    return dataArray[port].mutex.acquire(timeout);
+}
+
+TtStatus unlock(i2c_port_t port) {
+    return dataArray[port].mutex.release();
+}
+
+} // namespace
+
+#endif