made classes for drivers

.gitignore

@@ -1,3 +1,4 @@
 build
 ChibiOS_*
+**/.*
 

source/adc.cpp

@@ -0,0 +1,42 @@
+#include "adc.hpp"
+
+const GPTConfig ADCd::m_gpt_config = {
+  .frequency    =  1000000,
+  .callback     =  NULL,
+  .cr2          =  TIM_CR2_MMS_1,   /* MMS = 010 = TRGO on Update Event.    */
+  .dier         =  0
+};
+
+void ADCd::start()
+{
+    initPins();
+    gptStart(m_gptd, &m_gpt_config);
+
+    m_adc_config.difsel = 0;
+    m_adc_config.adcdinst = this;
+
+    adcStart(m_adcd, &m_adc_config);
+    adcSTM32EnableVREF(m_adcd);
+}
+
+adcsample_t *ADCd::getSamples(adcsample_t *buffer, size_t count)
+{
+    m_is_adc_finished = false;
+    adcStartConversion(m_adcd, &m_adc_group_config, buffer, count);
+    gptStartContinuous(m_gptd, 100); // 10kHz
+    while (!m_is_adc_finished);
+    return buffer;
+}
+
+void ADCd::initPins()
+{
+    palSetPadMode(GPIOA, 0, PAL_MODE_INPUT_ANALOG);
+}
+
+void ADCd::adcEndCallback(ADCDriver *adcd)
+{
+    auto *_this = reinterpret_cast<const ADCdConfig *>(adcd->config)->adcdinst;
+    gptStopTimer(_this->m_gptd);
+    _this->m_is_adc_finished = true;
+}
+

source/adc.hpp

@@ -0,0 +1,57 @@
+#ifndef STMDSP_ADC_HPP_
+#define STMDSP_ADC_HPP_
+
+#include "hal.h"
+
+class ADCd;
+
+struct ADCdConfig : public ADCConfig
+{
+    ADCd *adcdinst;
+};
+
+class ADCd
+{
+public:
+    constexpr explicit ADCd(ADCDriver& adcd, GPTDriver& gptd) :
+        m_adcd(&adcd), m_gptd(&gptd), m_adc_config{},
+        m_adc_group_config(ADC_GROUP_CONFIG),
+        m_is_adc_finished(false) {}
+
+    void start();
+    adcsample_t *getSamples(adcsample_t *buffer, size_t count);
+
+private:
+    static const GPTConfig m_gpt_config;
+
+    ADCDriver *m_adcd;
+    GPTDriver *m_gptd;
+    ADCdConfig m_adc_config;
+    ADCConversionGroup m_adc_group_config;
+
+    bool m_is_adc_finished;
+
+    void initPins();
+    static void adcEndCallback(ADCDriver *adcd);
+
+    constexpr static const ADCConversionGroup ADC_GROUP_CONFIG = {
+        .circular = false,
+        .num_channels = 1,
+        .end_cb = ADCd::adcEndCallback,
+        .error_cb = nullptr,
+        .cfgr = ADC_CFGR_EXTEN_RISING |
+                ADC_CFGR_EXTSEL_SRC(12),  /* TIM4_TRGO */
+        .cfgr2 = 0,
+        .tr1 = ADC_TR(0, 4095),
+        .smpr = {
+            ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_247P5), 0
+        },
+        .sqr = {
+            ADC_SQR1_SQ1_N(ADC_CHANNEL_IN5),
+            0, 0, 0
+        }
+    };
+};
+
+#endif // STMDSP_ADC_HPP_
+

source/dac.cpp

@@ -0,0 +1,27 @@
+#include "dac.hpp"
+
+//static const DACConversionGroup dacGroupConfig = {
+//  .num_channels = 1,
+//  .end_cb       = NULL,
+//  .error_cb     = NULL,
+//  .trigger      = DAC_TRG(0)
+//};
+
+void DACd::init()
+{
+    initPins();
+    dacStart(m_driver, &m_config);
+}
+
+void DACd::write(unsigned int channel, uint16_t value)
+{
+    if (channel < 2)
+        dacPutChannelX(m_driver, channel, value);
+}
+
+void DACd::initPins()
+{
+    palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG);     // DAC out1, out2
+    palSetPadMode(GPIOA, 5, PAL_MODE_INPUT_ANALOG);
+}
+

source/dac.hpp

@@ -0,0 +1,24 @@
+#ifndef STMDSP_DAC_HPP_
+#define STMDSP_DAC_HPP_
+
+#include "hal.h"
+
+class DACd
+{
+public:
+    constexpr explicit DACd(DACDriver& driver, const DACConfig& config) :
+        m_driver(&driver), m_config(config) {}
+
+    void init();
+
+    void write(unsigned int channel, uint16_t value);
+
+private:
+    DACDriver *m_driver;
+    DACConfig m_config;
+
+    void initPins();
+};
+
+#endif // STMDSP_DAC_HPP_
+

source/main.cpp

@@ -1,92 +1,9 @@
 #include "ch.h"
 #include "hal.h"
-#include "usbcfg.h"
 
-class dDAC
+#include "adc.hpp"
-{
+#include "dac.hpp"
-public:
+#include "usbserial.hpp"
-    constexpr dDAC(DACDriver& driver, const DACConfig& config) :
-        m_driver(&driver), m_config(config) {}
-
-    void init() {
-        dacStart(m_driver, &m_config);
-    }
-
-    void writeX(unsigned int channel, uint16_t value) {
-        if (channel < 2)
-            dacPutChannelX(m_driver, channel, value);
-    }
-
-private:
-    DACDriver *m_driver;
-    DACConfig m_config;
-};
-
-//static const DACConversionGroup dacGroupConfig = {
-//  .num_channels = 1,
-//  .end_cb       = NULL,
-//  .error_cb     = NULL,
-//  .trigger      = DAC_TRG(0)
-//};
-
-class dGPT {
-public:
-    constexpr dGPT(GPTDriver& driver, const GPTConfig& config) :
-        m_driver(&driver), m_config(config) {}
-
-    void init() {
-        gptStart(m_driver, &m_config);
-    }
-
-    void startContinuous(unsigned int interval) {
-        gptStartContinuous(m_driver, interval);
-    }
-
-    void stop() {
-        gptStopTimer(m_driver);
-    }
-
-private:
-    GPTDriver *m_driver;
-    GPTConfig m_config;
-};
-
-static dGPT gpt (GPTD4, {
-  .frequency    =  1000000,
-  .callback     =  NULL,
-  .cr2          =  TIM_CR2_MMS_1,   /* MMS = 010 = TRGO on Update Event.    */
-  .dier         =  0
-});
-
-static const ADCConfig adcConfig = {
-  .difsel = 0
-};
-
-volatile bool adcFinished = false;
-void adcEndCallback(ADCDriver *adcd)
-{
-    (void)adcd;
-    gpt.stop();
-    adcFinished = true;
-}
-
-static const ADCConversionGroup adcGroupConfig = {
-  .circular     = false,
-  .num_channels = 1,
-  .end_cb       = adcEndCallback,
-  .error_cb     = NULL,
-  .cfgr         = ADC_CFGR_EXTEN_RISING |
-                  ADC_CFGR_EXTSEL_SRC(12),  /* TIM4_TRGO */
-  .cfgr2        = 0,
-  .tr1          = ADC_TR(0, 4095),
-  .smpr         = {
-    ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_247P5), 0
-  },
-  .sqr          = {
-    ADC_SQR1_SQ1_N(ADC_CHANNEL_IN5),
-    0, 0, 0
-  }
-};
 
 #if CACHE_LINE_SIZE > 0
 CC_ALIGN(CACHE_LINE_SIZE)
@@ -94,47 +11,29 @@ CC_ALIGN(CACHE_LINE_SIZE)
 adcsample_t samples[CACHE_SIZE_ALIGN(adcsample_t, 10)];
 
 int main(void) {
-	halInit();
+    halInit();
-	chSysInit();
+    chSysInit();
-
-	palSetPadMode(GPIOA, 5,  PAL_MODE_OUTPUT_PUSHPULL); // LED
-	palSetPadMode(GPIOA, 11, PAL_MODE_ALTERNATE(10));   // USB
-	palSetPadMode(GPIOA, 12, PAL_MODE_ALTERNATE(10));
-    palSetPadMode(GPIOA, 0,  PAL_MODE_INPUT_ANALOG);    // Channel A in (1in5)
 
-    palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG);     // DAC out1, out2
+    palSetPadMode(GPIOA, 5,  PAL_MODE_OUTPUT_PUSHPULL); // LED
-    palSetPadMode(GPIOA, 5, PAL_MODE_INPUT_ANALOG);
 
-    gpt.init();
+    ADCd adc (ADCD1, GPTD4);
+    adc.start();
 
-    //dDAC dac (DACD1, {
+    //DACd dac (DACD1, {
     //    .init         = 0,
     //    .datamode     = DAC_DHRM_12BIT_RIGHT,
     //    .cr           = 0
     //});
+    //dac.start();
+    //dac.write(0, 1024);
 
-    //dac.init();
+    USBSeriald usbd (SDU1);
-    //dac.writeX(0, 1024);
+    usbd.start();
-
-    adcStart(&ADCD1, &adcConfig);
-    adcSTM32EnableVREF(&ADCD1);
-
-	sduObjectInit(&SDU1);
-	sduStart(&SDU1, &serusbcfg);
-	usbDisconnectBus(serusbcfg.usbp);
-	chThdSleepMilliseconds(1500);
-	usbStart(serusbcfg.usbp, &usbcfg);
-	usbConnectBus(serusbcfg.usbp);
 
 	while (true) {
-        if (SDU1.config->usbp->state == USB_ACTIVE) {
+        if (usbd.active()) {
-            BaseSequentialStream *bss = (BaseSequentialStream *)&SDU1;
+            if (char c; usbd.read(&c) > 0 && c == 's') {
-            char c = 0;
+                adc.getSamples(samples, 10);
-            if (streamRead(bss, (uint8_t *)&c, 1) > 0 && c == 's') {
-                adcFinished = false;
-                adcStartConversion(&ADCD1, &adcGroupConfig, samples, 10);
-                gpt.startContinuous(100);
-                while (!adcFinished);
                 for (int i = 0; i < 10; i++) {
                     uint8_t str[5] = {
                         static_cast<uint8_t>(samples[i] / 1000 % 10 + '0'),
@@ -143,9 +42,9 @@ int main(void) {
                         static_cast<uint8_t>(samples[i] % 10 + '0'),
                         ' '
                     };
-                    streamWrite(bss, str, 5);
+                    usbd.write(str, 5);
                 }
-                streamWrite(bss, (uint8_t *)"\r\n", 2);
+                usbd.write("\r\n", 2);
             }
         }
 		chThdSleepMilliseconds(250);

source/usbcfg.h

@@ -17,6 +17,8 @@
 #ifndef USBCFG_H
 #define USBCFG_H
 
+#include "hal.h"
+
 extern const USBConfig usbcfg;
 extern SerialUSBConfig serusbcfg;
 extern SerialUSBDriver SDU1;

source/usbserial.cpp

@@ -0,0 +1,41 @@
+#include "usbserial.hpp"
+
+#include "hal.h"
+
+void USBSeriald::start()
+{
+    initPins();
+
+    sduObjectInit(m_driver);
+    sduStart(m_driver, &serusbcfg);
+
+    // Reconnect bus so device can re-enumerate on reset
+    usbDisconnectBus(serusbcfg.usbp);
+    chThdSleepMilliseconds(1500);
+    usbStart(serusbcfg.usbp, &usbcfg);
+    usbConnectBus(serusbcfg.usbp);
+}
+
+bool USBSeriald::active() const
+{
+    return m_driver->config->usbp->state == USB_ACTIVE;
+}
+
+std::size_t USBSeriald::read(void *buffer, std::size_t count)
+{
+    auto *bss = reinterpret_cast<BaseSequentialStream *>(m_driver);
+    return streamRead(bss, static_cast<uint8_t *>(buffer), count);
+}
+
+std::size_t USBSeriald::write(const void *buffer, std::size_t count)
+{
+    auto *bss = reinterpret_cast<BaseSequentialStream *>(m_driver);
+    return streamWrite(bss, static_cast<const uint8_t *>(buffer), count);
+}
+
+void USBSeriald::initPins()
+{
+    palSetPadMode(GPIOA, 11, PAL_MODE_ALTERNATE(10));
+    palSetPadMode(GPIOA, 12, PAL_MODE_ALTERNATE(10));
+}
+

source/usbserial.hpp

@@ -0,0 +1,28 @@
+#ifndef STMDSP_USBSERIAL_HPP_
+#define STMDSP_USBSERIAL_HPP_
+
+#include "usbcfg.h"
+
+#include <cstddef>
+
+class USBSeriald
+{
+public:
+    constexpr explicit USBSeriald(SerialUSBDriver& driver) :
+        m_driver(&driver) {}
+
+    void start();
+
+    bool active() const;
+
+    std::size_t read(void *buffer, std::size_t count = 1);
+    std::size_t write(const void *buffer, std::size_t count = 1);
+
+private:
+    SerialUSBDriver *m_driver;
+
+    void initPins();
+};
+
+#endif // STMDSP_USBSERIAL_HPP_
+