Corrections on fragmenting/buffering for vfs/cmux

esp_modem/test/host_test/main/CMakeLists.txt

@@ -1,4 +1,4 @@
-idf_component_register(SRCS "test_modem.cpp"
+idf_component_register(SRCS "test_modem.cpp" "LoopbackTerm.cpp"
                        INCLUDE_DIRS "$ENV{IDF_PATH}/tools/catch"
                        REQUIRES esp_modem)
 

esp_modem/test/host_test/main/LoopbackTerm.cpp

@@ -0,0 +1,82 @@
+#include <memory>
+#include <future>
+#include <cstring>
+#include "LoopbackTerm.h"
+
+void LoopbackTerm::start()
+{
+    status = status_t::STARTED;
+}
+
+void LoopbackTerm::stop()
+{
+    status = status_t::STOPPED;
+}
+
+int LoopbackTerm::write(uint8_t *data, size_t len)
+{
+    if (len > 2 && (data[len-1] == '\r' || data[len-1] == '+') ) { // Simple AT responder
+        std::string command((char*)data, len);
+        std::string response;
+        if (command == "+++") {
+            response = "NO CARRIER\r\n";
+        } else if (command == "ATE1\r" || command == "ATE0\r") {
+            response = "OK\r\n";
+        } else if (command == "ATO\r") {
+            response = "ERROR\r\n";
+        } else if (command.find("ATD") != std::string::npos) {
+            response = "CONNECT\r\n";
+        } else if (command.find("AT+CSQ\r") != std::string::npos) {
+            response = "+CSQ: 123,456\n\r\nOK\r\n";
+        } else if (command.find("AT+CBC\r") != std::string::npos) {
+            response = is_bg96 ? "+CBC: 1,2,123456V\r\r\n\r\nOK\r\n\n\r\n":
+                                 "+CBC: 123.456V\r\r\n\r\nOK\r\n\n\r\n";
+        } else if (command.find("AT+CPIN=1234\r") != std::string::npos) {
+            response = "OK\r\n";
+            pin_ok = true;
+        } else if (command.find("AT+CPIN?\r") != std::string::npos) {
+            response = pin_ok?"+CPIN: READY\r\nOK\r\n":"+CPIN: SIM PIN\r\nOK\r\n";
+        } else if (command.find("AT") != std::string::npos) {
+            response = "OK\r\n";
+        }
+        if (!response.empty()) {
+            data_len = response.length();
+            loopback_data.resize(data_len);
+            memcpy(&loopback_data[0], &response[0], data_len);
+            auto ret = std::async(on_data, nullptr, data_len);
+            return len;
+        }
+    }
+    if (len > 2 && data[0] == 0xf9) { // Simple CMUX responder
+        // turn the request into a reply -> implements CMUX loopback
+        if (data[2] == 0x3f)    // SABM command
+            data[2] = 0x73;
+        else if (data[2] == 0xef) { // Generic request
+            data[2] = 0xff;         // generic reply
+        }
+    }
+    loopback_data.resize(data_len + len);
+    memcpy(&loopback_data[data_len], data, len);
+    data_len += len;
+    auto ret = std::async(on_data, nullptr, data_len);
+    return len;
+}
+
+int LoopbackTerm::read(uint8_t *data, size_t len)
+{
+    size_t read_len = std::min(data_len, len);
+    if (read_len) {
+        if (loopback_data.capacity() < len)
+            loopback_data.reserve(len);
+        memcpy(data, &loopback_data[0], read_len);
+        loopback_data.erase(loopback_data.begin(), loopback_data.begin() + read_len);
+        data_len -= read_len;
+    }
+    return read_len;
+}
+
+LoopbackTerm::LoopbackTerm(bool is_bg96): loopback_data(), data_len(0), pin_ok(false), is_bg96(is_bg96) {}
+
+LoopbackTerm::LoopbackTerm(): loopback_data(), data_len(0), pin_ok(false), is_bg96(false) {}
+
+LoopbackTerm::~LoopbackTerm() = default;

esp_modem/test/host_test/main/LoopbackTerm.h

@@ -0,0 +1,36 @@
+#ifndef _LOOPBACKTERM_H_
+#define _LOOPBACKTERM_H_
+
+#include "cxx_include/esp_modem_api.hpp"
+#include "cxx_include/esp_modem_terminal.hpp"
+
+using namespace esp_modem;
+
+class LoopbackTerm : public Terminal {
+public:
+    explicit LoopbackTerm(bool is_bg96);
+    explicit LoopbackTerm();
+
+    ~LoopbackTerm() override;
+
+    void start() override;
+    void stop() override;
+
+    int write(uint8_t *data, size_t len) override;
+
+    int read(uint8_t *data, size_t len) override;
+
+private:
+    enum class status_t {
+        STARTED,
+        STOPPED
+    };
+    status_t status;
+    SignalGroup signal;
+    std::vector<uint8_t> loopback_data;
+    size_t data_len;
+    bool pin_ok;
+    bool is_bg96;
+};
+
+#endif //_LOOPBACKTERM_H_

esp_modem/test/host_test/main/test_modem.cpp

@@ -2,82 +2,44 @@
 #include <memory>
 #include <future>
 #include "catch.hpp"
-#include "cxx_include/esp_modem_terminal.hpp"
 #include "cxx_include/esp_modem_api.hpp"
+#include "LoopbackTerm.h"
 
 using namespace esp_modem;
 
-class LoopbackTerm : public Terminal {
-public:
-    explicit LoopbackTerm(): loopback_data(), data_len(0) {}
+TEST_CASE("DCE AT parser", "[esp_modem]")
+{
+    auto term = std::make_unique<LoopbackTerm>(true);
+    auto dte =  std::make_shared<DTE>(std::move(term));
+    CHECK(term == nullptr);
 
-    ~LoopbackTerm() override = default;
+    esp_modem_dce_config_t dce_config = ESP_MODEM_DCE_DEFAULT_CONFIG("APN");
+    esp_netif_t netif{};
+    auto dce = create_BG96_dce(&dce_config, dte, &netif);
+    CHECK(dce != nullptr);
 
-    void start() override {
-        status = status_t::STARTED;
-    }
+    CHECK(dce->set_command_mode() == command_result::OK);
 
-    void stop() override {
-        status = status_t::STOPPED;
-    }
+    int milli_volt, bcl, bcs;
+    CHECK(dce->get_battery_status(milli_volt, bcl, bcs) == command_result::OK);
+    CHECK(milli_volt == 123456);
+    CHECK(bcl == 1);
+    CHECK(bcs == 2);
 
-    int write(uint8_t *data, size_t len) override {
-        if (len > 2 && (data[len-1] == '\r' || data[len-1] == '+') ) { // Simple AT responder
-            std::string command((char*)data, len);
-            std::string response;
-            if (command == "ATE1\r" || command == "ATE0\r" || command == "+++") {
-                response = "OK\r\n";
-            } else if (command == "ATO\r") {
-                response = "ERROR\r\n";
-            } else if (command.find("ATD") != std::string::npos) {
-                response = "CONNECT\r\n";
-            } else if (command.find("AT") != std::string::npos) {
-                response = "OK\r\n";
-            }
-            if (!response.empty()) {
-                data_len = response.length();
-                loopback_data.resize(data_len);
-                memcpy(&loopback_data[0], &response[0], data_len);
-                auto ret = std::async(on_data, nullptr, data_len);
-                return len;
-            }
-        }
-        if (len > 2 && data[0] == 0xf9) { // Simple CMUX responder
-            // turn the request into a reply -> implements CMUX loopback
-            if (data[2] == 0x3f)    // SABM command
-                data[2] = 0x73;
-            else if (data[2] == 0xef)   // Generic request
-                data[2] = 0xff;         // generic reply
-        }
-        loopback_data.resize(data_len + len);
-        memcpy(&loopback_data[data_len], data, len);
-        data_len += len;
-        auto ret = std::async(on_data, nullptr, data_len);
-        return len;
-    }
+    int rssi, ber;
+    CHECK(dce->get_signal_quality(rssi, ber) == command_result::OK);
+    CHECK(rssi == 123);
+    CHECK(ber == 456);
 
-    int read(uint8_t *data, size_t len) override {
-        size_t read_len = std::min(data_len, len);
-        if (read_len) {
-            memcpy(data, &loopback_data[0], len);
-            loopback_data.erase(loopback_data.begin(), loopback_data.begin() + read_len);
-            data_len -= len;
-        }
-        return read_len;
-    }
+    bool pin_ok;
+    CHECK(dce->read_pin(pin_ok) == command_result::OK);
+    CHECK(pin_ok == false);
+    CHECK(dce->set_pin("1234") == command_result::OK);
+    CHECK(dce->read_pin(pin_ok) == command_result::OK);
+    CHECK(pin_ok == true);
+}
 
 
-private:
-    enum class status_t {
-        STARTED,
-        STOPPED
-    };
-    status_t status;
-    signal_group signal;
-    std::vector<uint8_t> loopback_data;
-    size_t data_len;
-};
-
 TEST_CASE("DTE send/receive command", "[esp_modem]")
 {
     auto term = std::make_unique<LoopbackTerm>();
@@ -127,11 +89,15 @@ TEST_CASE("DCE AT commands", "[esp_modem]")
     auto dce = create_SIM7600_dce(&dce_config, dte, &netif);
     CHECK(dce != nullptr);
 
+    int milli_volt, bcl, bcs;
     CHECK(dce->set_echo(false) == command_result::OK);
     CHECK(dce->set_echo(true) == command_result::OK);
+    CHECK(dce->get_battery_status(milli_volt, bcl, bcs) == command_result::OK);
+    CHECK(milli_volt == 123456);
     CHECK(dce->resume_data_mode() == command_result::FAIL);
 }
 
+
 TEST_CASE("DCE modes", "[esp_modem]")
 {
     auto term = std::make_unique<LoopbackTerm>();
@@ -162,8 +128,9 @@ TEST_CASE("DCE CMUX test", "[esp_modem]") {
     const auto test_command = "Test\n";
     auto ret = dce->command(test_command, [&](uint8_t *data, size_t len) {
         std::string response((char *) data, len);
+        std::cout << "Response:" << response << std::endl;
         CHECK(response == test_command);
         return command_result::OK;
     }, 1000);
     CHECK(ret == command_result::OK);
-}
+}

esp_modem/test/host_test/my.log

@@ -1,31 +0,0 @@
--- Found Git: /usr/bin/git (found version "2.30.2") 
--- Component directory /home/david/esp/idf/components/aws_iot does not contain a CMakeLists.txt file. No component will be added
--- Component directory /home/david/esp/idf/components/micro-ecc does not contain a CMakeLists.txt file. No component will be added
--- Component directory /home/david/esp/idf/components/nimble does not contain a CMakeLists.txt file. No component will be added
--- ccache will be used for faster recompilation
--- The C compiler identification is GNU 10.2.1
--- The CXX compiler identification is GNU 10.2.1
--- The ASM compiler identification is GNU
--- Found assembler: /usr/lib64/ccache/cc
--- Detecting C compiler ABI info
--- Detecting C compiler ABI info - done
--- Check for working C compiler: /usr/lib64/ccache/cc - skipped
--- Detecting C compile features
--- Detecting C compile features - done
--- Detecting CXX compiler ABI info
--- Detecting CXX compiler ABI info - done
--- Check for working CXX compiler: /usr/lib64/ccache/c++ - skipped
--- Detecting CXX compile features
--- Detecting CXX compile features - done
--- Building ESP-IDF components for target linux
--- adding linux stuff...
--- Found Git: /usr/bin/git (found version "2.30.2") 
--- Configuring incomplete, errors occurred!
-See also "/home/david/repos/esp-idf-contrib/esp_modem/test/host_test/build/CMakeFiles/CMakeOutput.log".
-Adding "set-target"'s dependency "fullclean" to list of commands with default set of options.
-Executing action: fullclean
-Build directory '/home/david/repos/esp-idf-contrib/esp_modem/test/host_test/build' not found. Nothing to clean.
-Executing action: set-target
-Set Target to: linux, new sdkconfig created. Existing sdkconfig renamed to sdkconfig.old.
-Running cmake in directory /home/david/repos/esp-idf-contrib/esp_modem/test/host_test/build
-Executing "cmake -G Ninja -DPYTHON_DEPS_CHECKED=1 -DESP_PLATFORM=1 -DIDF_TARGET=linux -DIDF_TARGET=linux -DCCACHE_ENABLE=1 /home/david/repos/esp-idf-contrib/esp_modem/test/host_test"...