Black (#254)

* late usb

* Added type support for black panda

* Added harness presence and orientation detection

* harness relay driving code

* Added intercept support in black panda code. Switched around can0 and can2

* Disable ADCs after orientation detection. Ignition interrupts via harness

* WIP: Hardware abstraction layer + black panda bringup

* Fixed bootstub build

* Fixed bootstub for pedal

* Fixed infinite loops

* Got CAN buses working on white again

* Fixed pedal build and black can interfaces

* Got CAN buses working on black panda

* Finished loopback test for black panda

* Erase all flash sectors on the panda. Increased binary limit. Added extra python functions.

* Fixed python

* Made new code MISRA compliant

* Cleaned up ignition. Fixed build

* Fixed health packet

* Fixed CAN mode on black bug. Changed OBD to switch on ELM mode

* Fixes from Github review

* Fixed MISRA issue for pedal

* Fixed failing gmlan tests

* ELM327 safety: allow diagnostic on all buses

* Cleaned up EON relay code

* delete only 3 sectors instead of 11 to allow a new build to be flashed. Much faster to flash

* Removed CAN only can0 output mode. Does not make sense on black panda due to reversibility issues.

* Added heartbeat logic for EON code on panda. Go to NOOUTPUT if EON does not send a heartbeat for 5 seconds.

* Remove all CAN buses live on EON startup. Shouldn't be necessary to have this separate case

* Formatting

* Added file I forgot to push

* Added heartbeat to testing code to make sure EON tests don't fail. Should probably find a better way to do this though. Heartbeat thread didn't work, concurrent USB connection issues...

* Safety: support black panda for Honda Bosch

* Disable OBD2 if setting to NOOUTPUT mode

* Run safety tests for all hw_types

* Fail test if subtest fails

* fix safety tests

board/board.h

@@ -0,0 +1,61 @@
+// ///////////////////////////////////////////////////////////// //
+// Hardware abstraction layer for all different supported boards //
+// ///////////////////////////////////////////////////////////// //
+#include "board_declarations.h"
+#include "boards/common.h"
+
+// ///// Board definition and detection ///// //
+#include "drivers/harness.h"
+#ifdef PANDA
+  #include "boards/white.h"
+  #include "boards/grey.h"
+  #include "boards/black.h"
+#else
+  #include "boards/pedal.h"
+#endif
+
+void detect_board_type(void) {
+  #ifdef PANDA
+    // SPI lines floating: white (TODO: is this reliable?)
+    if((detect_with_pull(GPIOA, 4, PULL_DOWN)) || (detect_with_pull(GPIOA, 5, PULL_DOWN)) || (detect_with_pull(GPIOA, 6, PULL_DOWN)) || (detect_with_pull(GPIOA, 7, PULL_DOWN))){
+      hw_type = HW_TYPE_WHITE_PANDA;
+      current_board = &board_white;
+    } else if(detect_with_pull(GPIOA, 13, PULL_DOWN)) { // Rev AB deprecated, so no pullup means black. In REV C, A13 is pulled up to 5V with a 10K
+      hw_type = HW_TYPE_GREY_PANDA;
+      current_board = &board_grey;
+    } else {
+      hw_type = HW_TYPE_BLACK_PANDA;
+      current_board = &board_black;
+    }
+  #else
+    #ifdef PEDAL
+      hw_type = HW_TYPE_PEDAL;
+      current_board = &board_pedal;
+    #else 
+      hw_type = HW_TYPE_UNKNOWN;
+      puts("Hardware type is UNKNOWN!\n");
+    #endif
+  #endif
+}
+
+
+// ///// Configuration detection ///// //
+bool has_external_debug_serial = 0;
+bool is_entering_bootmode = 0;
+
+void detect_configuration(void) {
+  // detect if external serial debugging is present
+  has_external_debug_serial = detect_with_pull(GPIOA, 3, PULL_DOWN);
+
+  #ifdef PANDA
+    // check if the ESP is trying to put me in boot mode
+    is_entering_bootmode = !detect_with_pull(GPIOB, 0, PULL_UP);
+  #else
+    is_entering_bootmode = 0;
+  #endif
+}
+
+// ///// Board functions ///// //
+bool board_has_gps(void) {
+  return ((hw_type == HW_TYPE_GREY_PANDA) || (hw_type == HW_TYPE_BLACK_PANDA));
+}

board/board_declarations.h

@@ -0,0 +1,57 @@
+// ******************** Prototypes ********************
+typedef void (*board_init)(void);
+typedef void (*board_enable_can_transciever)(uint8_t transciever, bool enabled);
+typedef void (*board_enable_can_transcievers)(bool enabled);
+typedef void (*board_set_led)(uint8_t color, bool enabled);
+typedef void (*board_set_usb_power_mode)(uint8_t mode);
+typedef void (*board_set_esp_gps_mode)(uint8_t mode);
+typedef void (*board_set_can_mode)(uint8_t mode);
+typedef void (*board_usb_power_mode_tick)(uint64_t tcnt);
+typedef bool (*board_check_ignition)(void);
+
+struct board {
+  const char *board_type;
+  const harness_configuration *harness_config;
+  board_init init;
+  board_enable_can_transciever enable_can_transciever;
+  board_enable_can_transcievers enable_can_transcievers;
+  board_set_led set_led;
+  board_set_usb_power_mode set_usb_power_mode;
+  board_set_esp_gps_mode set_esp_gps_mode;
+  board_set_can_mode set_can_mode;
+  board_usb_power_mode_tick usb_power_mode_tick;
+  board_check_ignition check_ignition;
+};
+
+// ******************* Definitions ********************
+// These should match the enum in cereal/log.capnp
+#define HW_TYPE_UNKNOWN 0U
+#define HW_TYPE_WHITE_PANDA 1U
+#define HW_TYPE_GREY_PANDA 2U
+#define HW_TYPE_BLACK_PANDA 3U
+#define HW_TYPE_PEDAL 4U
+
+// LED colors
+#define LED_RED 0U
+#define LED_GREEN 1U
+#define LED_BLUE 2U
+
+// USB power modes
+#define USB_POWER_NONE 0U
+#define USB_POWER_CLIENT 1U
+#define USB_POWER_CDP 2U
+#define USB_POWER_DCP 3U
+
+// ESP modes
+#define ESP_GPS_DISABLED 0U
+#define ESP_GPS_ENABLED 1U
+#define ESP_GPS_BOOTMODE 2U
+
+// CAN modes
+#define CAN_MODE_NORMAL 0U
+#define CAN_MODE_GMLAN_CAN2 1U
+#define CAN_MODE_GMLAN_CAN3 2U
+#define CAN_MODE_OBD_CAN2 3U
+
+// ********************* Globals **********************
+uint8_t usb_power_mode = USB_POWER_NONE;

board/boards/black.h

@@ -0,0 +1,188 @@
+// ///////////////////// //
+// Black Panda + Harness //
+// ///////////////////// //
+
+void black_enable_can_transciever(uint8_t transciever, bool enabled) {
+  switch (transciever){
+    case 1U:
+      set_gpio_output(GPIOC, 1, !enabled);
+      break;
+    case 2U:
+      set_gpio_output(GPIOC, 13, !enabled);
+      break;
+    case 3U:
+      set_gpio_output(GPIOA, 0, !enabled);
+      break;
+    case 4U:
+      set_gpio_output(GPIOB, 10, !enabled);
+      break;
+    default:
+      puts("Invalid CAN transciever ("); puth(transciever); puts("): enabling failed\n");
+      break;
+  }
+}
+
+void black_enable_can_transcievers(bool enabled) {
+  for(uint8_t i=1; i<=4U; i++)
+    black_enable_can_transciever(i, enabled);
+}
+
+void black_set_led(uint8_t color, bool enabled) {
+  switch (color){
+    case LED_RED:
+      set_gpio_output(GPIOC, 9, !enabled);
+      break;
+     case LED_GREEN:
+      set_gpio_output(GPIOC, 7, !enabled);
+      break;
+    case LED_BLUE:
+      set_gpio_output(GPIOC, 6, !enabled);
+      break;  
+    default:
+      break;
+  }
+}
+
+void black_set_usb_power_mode(uint8_t mode){
+  usb_power_mode = mode;
+  puts("Trying to set USB power mode on black panda. This is not supported.\n");
+}
+
+void black_set_esp_gps_mode(uint8_t mode) {
+  switch (mode) {
+    case ESP_GPS_DISABLED:
+      // ESP OFF
+      set_gpio_output(GPIOC, 14, 0);
+      set_gpio_output(GPIOC, 5, 0);
+      break;
+    case ESP_GPS_ENABLED:
+      // ESP ON
+      set_gpio_output(GPIOC, 14, 1);
+      set_gpio_output(GPIOC, 5, 1);
+      break;
+    case ESP_GPS_BOOTMODE:
+      set_gpio_output(GPIOC, 14, 1);
+      set_gpio_output(GPIOC, 5, 0);
+      break;
+    default:
+      puts("Invalid ESP/GPS mode\n");
+      break;
+  }
+}
+
+void black_set_can_mode(uint8_t mode){
+  switch (mode) {
+    case CAN_MODE_NORMAL:
+    case CAN_MODE_OBD_CAN2:
+      if ((bool)(mode == CAN_MODE_NORMAL) != (bool)(car_harness_status == HARNESS_STATUS_NORMAL)) {
+        // B12,B13: disable OBD mode
+        set_gpio_mode(GPIOB, 12, MODE_INPUT);
+        set_gpio_mode(GPIOB, 13, MODE_INPUT);
+
+        // B5,B6: normal CAN2 mode
+        set_gpio_alternate(GPIOB, 5, GPIO_AF9_CAN2);
+        set_gpio_alternate(GPIOB, 6, GPIO_AF9_CAN2);
+      } else {
+        // B5,B6: disable normal CAN2 mode
+        set_gpio_mode(GPIOB, 5, MODE_INPUT);
+        set_gpio_mode(GPIOB, 6, MODE_INPUT);
+
+        // B12,B13: OBD mode
+        set_gpio_alternate(GPIOB, 12, GPIO_AF9_CAN2);
+        set_gpio_alternate(GPIOB, 13, GPIO_AF9_CAN2);
+      }      
+      break;
+    default:
+      puts("Tried to set unsupported CAN mode: "); puth(mode); puts("\n");
+      break;
+  }
+}
+
+void black_usb_power_mode_tick(uint64_t tcnt){
+  UNUSED(tcnt);
+  // Not applicable
+}
+
+bool black_check_ignition(void){
+  // ignition is checked through harness
+  return harness_check_ignition();
+}
+
+void black_init(void) {
+  common_init_gpio();
+
+  // A8,A15: normal CAN3 mode
+  set_gpio_alternate(GPIOA, 8, GPIO_AF11_CAN3);
+  set_gpio_alternate(GPIOA, 15, GPIO_AF11_CAN3);
+
+  // C0: OBD_SBU1 (orientation detection)
+  // C3: OBD_SBU2 (orientation detection)
+  set_gpio_mode(GPIOC, 0, MODE_ANALOG);
+  set_gpio_mode(GPIOC, 3, MODE_ANALOG);
+
+  // C10: OBD_SBU1_RELAY (harness relay driving output)
+  // C11: OBD_SBU2_RELAY (harness relay driving output)
+  set_gpio_mode(GPIOC, 10, MODE_OUTPUT);
+  set_gpio_mode(GPIOC, 11, MODE_OUTPUT);
+  set_gpio_output_type(GPIOC, 10, OUTPUT_TYPE_OPEN_DRAIN);
+  set_gpio_output_type(GPIOC, 11, OUTPUT_TYPE_OPEN_DRAIN);
+  set_gpio_output(GPIOC, 10, 1);
+  set_gpio_output(GPIOC, 11, 1);
+
+  // C8: FAN aka TIM3_CH3
+  set_gpio_alternate(GPIOC, 8, GPIO_AF2_TIM3);
+
+  // C12: GPS load switch. Turn on permanently for now
+  set_gpio_output(GPIOC, 12, true);
+  //set_gpio_output(GPIOC, 12, false); //TODO: stupid inverted switch on prototype
+
+  // Initialize harness
+  harness_init();
+
+  // Enable CAN transcievers
+  black_enable_can_transcievers(true);
+
+  // Disable LEDs
+  black_set_led(LED_RED, false);
+  black_set_led(LED_GREEN, false);
+  black_set_led(LED_BLUE, false);
+
+  // Set normal CAN mode
+  black_set_can_mode(CAN_MODE_NORMAL);
+
+  // flip CAN0 and CAN2 if we are flipped
+  if (car_harness_status == HARNESS_STATUS_NORMAL) {
+    can_flip_buses(0, 2);
+  }
+
+  // init multiplexer
+  can_set_obd(car_harness_status, false);
+}
+
+const harness_configuration black_harness_config = {
+  .has_harness = true,
+  .GPIO_SBU1 = GPIOC,
+  .GPIO_SBU2 = GPIOC,
+  .GPIO_relay_normal = GPIOC,
+  .GPIO_relay_flipped = GPIOC,
+  .pin_SBU1 = 0,
+  .pin_SBU2 = 3,
+  .pin_relay_normal = 10,
+  .pin_relay_flipped = 11,
+  .adc_channel_SBU1 = 10,
+  .adc_channel_SBU2 = 13
+};
+
+const board board_black = {
+  .board_type = "Black",
+  .harness_config = &black_harness_config,
+  .init = black_init,
+  .enable_can_transciever = black_enable_can_transciever,
+  .enable_can_transcievers = black_enable_can_transcievers,
+  .set_led = black_set_led,
+  .set_usb_power_mode = black_set_usb_power_mode,
+  .set_esp_gps_mode = black_set_esp_gps_mode,
+  .set_can_mode = black_set_can_mode,
+  .usb_power_mode_tick = black_usb_power_mode_tick,
+  .check_ignition = black_check_ignition
+};

board/boards/common.h

@@ -0,0 +1,82 @@
+#ifdef STM32F4
+  #include "stm32f4xx_hal_gpio_ex.h"
+#else
+  #include "stm32f2xx_hal_gpio_ex.h"
+#endif
+
+// Common GPIO initialization
+void common_init_gpio(void){
+  // TODO: Is this block actually doing something???
+  // pull low to hold ESP in reset??
+  // enable OTG out tied to ground
+  GPIOA->ODR = 0;
+  GPIOB->ODR = 0;
+  GPIOA->PUPDR = 0;
+  GPIOB->AFR[0] = 0;
+  GPIOB->AFR[1] = 0;
+
+  // C2: Voltage sense line
+  set_gpio_mode(GPIOC, 2, MODE_ANALOG);
+
+  // A11,A12: USB
+  set_gpio_alternate(GPIOA, 11, GPIO_AF10_OTG_FS);
+  set_gpio_alternate(GPIOA, 12, GPIO_AF10_OTG_FS);
+  GPIOA->OSPEEDR = GPIO_OSPEEDER_OSPEEDR11 | GPIO_OSPEEDER_OSPEEDR12;
+
+  // A9,A10: USART 1 for talking to the ESP / GPS
+  set_gpio_alternate(GPIOA, 9, GPIO_AF7_USART1);
+  set_gpio_alternate(GPIOA, 10, GPIO_AF7_USART1);
+
+   // B8,B9: CAN 1
+  #ifdef STM32F4
+    set_gpio_alternate(GPIOB, 8, GPIO_AF8_CAN1);
+    set_gpio_alternate(GPIOB, 9, GPIO_AF8_CAN1);
+  #else
+    set_gpio_alternate(GPIOB, 8, GPIO_AF9_CAN1);
+    set_gpio_alternate(GPIOB, 9, GPIO_AF9_CAN1);
+  #endif
+}
+
+// Peripheral initialization
+void peripherals_init(void){
+  // enable GPIOB, UART2, CAN, USB clock
+  RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;
+  RCC->AHB1ENR |= RCC_AHB1ENR_GPIOBEN;
+  RCC->AHB1ENR |= RCC_AHB1ENR_GPIOCEN;
+  RCC->AHB1ENR |= RCC_AHB1ENR_GPIODEN;
+
+  RCC->AHB1ENR |= RCC_AHB1ENR_DMA2EN;
+  RCC->APB1ENR |= RCC_APB1ENR_USART2EN;
+  RCC->APB1ENR |= RCC_APB1ENR_USART3EN;
+  #ifdef PANDA
+    RCC->APB1ENR |= RCC_APB1ENR_UART5EN;
+  #endif
+  RCC->APB1ENR |= RCC_APB1ENR_CAN1EN;
+  RCC->APB1ENR |= RCC_APB1ENR_CAN2EN;
+  #ifdef CAN3
+    RCC->APB1ENR |= RCC_APB1ENR_CAN3EN;
+  #endif
+  RCC->APB1ENR |= RCC_APB1ENR_DACEN;
+  RCC->APB1ENR |= RCC_APB1ENR_TIM2EN;  // main counter
+  RCC->APB1ENR |= RCC_APB1ENR_TIM3EN;  // slow loop and pedal
+  RCC->APB1ENR |= RCC_APB1ENR_TIM4EN;  // gmlan_alt
+  //RCC->APB1ENR |= RCC_APB1ENR_TIM5EN;
+  //RCC->APB1ENR |= RCC_APB1ENR_TIM6EN;
+  RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
+  RCC->AHB2ENR |= RCC_AHB2ENR_OTGFSEN;
+  //RCC->APB2ENR |= RCC_APB2ENR_TIM1EN;
+  RCC->APB2ENR |= RCC_APB2ENR_ADC1EN;
+  RCC->APB2ENR |= RCC_APB2ENR_SPI1EN;
+  RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN;
+}
+
+// Detection with internal pullup
+#define PULL_EFFECTIVE_DELAY 10
+bool detect_with_pull(GPIO_TypeDef *GPIO, int pin, int mode) {
+  set_gpio_mode(GPIO, pin, MODE_INPUT);
+  set_gpio_pullup(GPIO, pin, mode);
+  for (volatile int i=0; i<PULL_EFFECTIVE_DELAY; i++);
+  bool ret = get_gpio_input(GPIO, pin);
+  set_gpio_pullup(GPIO, pin, PULL_NONE);
+  return ret;
+}