Add guards around platform-specific code (commaai#2189)

* guard platform specific code

* more simple

* less dumb guard

* stragglers

* blankspace

* blankspace2

* crc.h

* keep condition

* good call

* consistency

* another one

---------

Co-authored-by: Robbe Derks <robbe.derks@gmail.com>

Author: 2 people

board/crc.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#if defined(ENABLE_SPI) || defined(BOOTSTUB)
 uint8_t crc_checksum(const uint8_t *dat, int len, const uint8_t poly) {
   uint8_t crc = 0xFFU;
   int i;
@@ -17,3 +18,4 @@ uint8_t crc_checksum(const uint8_t *dat, int len, const uint8_t poly) {
   }
   return crc;
 }
+#endif

board/drivers/gpio.h

@@ -10,11 +10,6 @@
 #define OUTPUT_TYPE_PUSH_PULL 0U
 #define OUTPUT_TYPE_OPEN_DRAIN 1U
 
-typedef struct {
-  GPIO_TypeDef * const bank;
-  uint8_t pin;
-} gpio_t;
-
 void set_gpio_mode(GPIO_TypeDef *GPIO, unsigned int pin, unsigned int mode) {
   ENTER_CRITICAL();
   uint32_t tmp = GPIO->MODER;
@@ -68,6 +63,12 @@ int get_gpio_input(const GPIO_TypeDef *GPIO, unsigned int pin) {
   return (GPIO->IDR & (1UL << pin)) == (1UL << pin);
 }
 
+#ifdef PANDA_JUNGLE
+typedef struct {
+  GPIO_TypeDef * const bank;
+  uint8_t pin;
+} gpio_t;
+
 void gpio_set_all_output(gpio_t *pins, uint8_t num_pins, bool enabled) {
   for (uint8_t i = 0; i < num_pins; i++) {
     set_gpio_output(pins[i].bank, pins[i].pin, enabled);
@@ -79,6 +80,7 @@ void gpio_set_bitmask(gpio_t *pins, uint8_t num_pins, uint32_t bitmask) {
     set_gpio_output(pins[i].bank, pins[i].pin, (bitmask >> i) & 1U);
   }
 }
+#endif
 
 // Detection with internal pullup
 #define PULL_EFFECTIVE_DELAY 4096

board/flasher.h

@@ -170,12 +170,13 @@ void soft_flasher_start(void) {
   usb_init();
   print("USB initialized\n");
 
-  // enable SPI
+#ifdef ENABLE_SPI
   if (current_board->has_spi) {
     gpio_spi_init();
     spi_init();
     print("SPI initialized\n");
   }
+#endif
 
 #ifdef HW_RICHIE_REV1
   // LED footprint is incorrect. Green LED turns power on to LEDs when 0

board/stm32f4/peripherals.h

@@ -9,6 +9,7 @@ static void gpio_usb_init(void) {
   GPIOA->OSPEEDR = GPIO_OSPEEDER_OSPEEDR11 | GPIO_OSPEEDER_OSPEEDR12;
 }
 
+#ifdef ENABLE_SPI
 void gpio_spi_init(void) {
   // A4-A7: SPI
   set_gpio_alternate(GPIOA, 4, GPIO_AF5_SPI1);
@@ -17,12 +18,15 @@ void gpio_spi_init(void) {
   set_gpio_alternate(GPIOA, 7, GPIO_AF5_SPI1);
   register_set_bits(&(GPIOA->OSPEEDR), GPIO_OSPEEDER_OSPEEDR4 | GPIO_OSPEEDER_OSPEEDR5 | GPIO_OSPEEDER_OSPEEDR6 | GPIO_OSPEEDER_OSPEEDR7);
 }
+#endif
 
+#ifdef BOOTSTUB
 void gpio_usart2_init(void) {
   // A2,A3: USART 2 for debugging
   set_gpio_alternate(GPIOA, 2, GPIO_AF7_USART2);
   set_gpio_alternate(GPIOA, 3, GPIO_AF7_USART2);
 }
+#endif
 
 // Common GPIO initialization
 void common_init_gpio(void) {
@@ -45,12 +49,14 @@ void common_init_gpio(void) {
   set_gpio_alternate(GPIOB, 9, GPIO_AF8_CAN1);
 }
 
+#ifdef BOOTSTUB
 void flasher_peripherals_init(void) {
   RCC->AHB1ENR |= RCC_AHB1ENR_DMA2EN;
   RCC->APB2ENR |= RCC_APB2ENR_SPI1EN;
   RCC->AHB2ENR |= RCC_AHB2ENR_OTGFSEN;
   RCC->APB1ENR |= RCC_APB1ENR_USART2EN;
 }
+#endif
 
 // Peripheral initialization
 void peripherals_init(void) {

board/stm32h7/peripherals.h

@@ -9,6 +9,7 @@ static void gpio_usb_init(void) {
   GPIOA->OSPEEDR = GPIO_OSPEEDR_OSPEED11 | GPIO_OSPEEDR_OSPEED12;
 }
 
+#ifdef ENABLE_SPI
 void gpio_spi_init(void) {
   set_gpio_alternate(GPIOE, 11, GPIO_AF5_SPI4);
   set_gpio_alternate(GPIOE, 12, GPIO_AF5_SPI4);
@@ -17,7 +18,9 @@ void gpio_spi_init(void) {
   register_set_bits(&(GPIOE->OSPEEDR), GPIO_OSPEEDR_OSPEED11 | GPIO_OSPEEDR_OSPEED12 | 
      GPIO_OSPEEDR_OSPEED13 | GPIO_OSPEEDR_OSPEED14);
 }
+#endif
 
+#ifdef BOOTSTUB
 void gpio_usart2_init(void) {
 #ifndef RICHIE
   // A2,A3: USART 2 for debugging
@@ -29,6 +32,7 @@ void gpio_usart2_init(void) {
   set_gpio_alternate(GPIOD, 6, GPIO_AF7_USART2);
 #endif
 }
+#endif
 
 void gpio_uart7_init(void) {
   // E7,E8: UART 7 connected to nRF
@@ -75,13 +79,15 @@ void common_init_gpio(void) {
 #endif
 }
 
+#ifdef BOOTSTUB
 void flasher_peripherals_init(void) {
   RCC->AHB1ENR |= RCC_AHB1ENR_USB1OTGHSEN;
 
   // SPI + DMA
   RCC->APB2ENR |= RCC_APB2ENR_SPI4EN;
   RCC->AHB1ENR |= RCC_AHB1ENR_DMA2EN;
 }
+#endif
 
 // Peripheral initialization
 void peripherals_init(void) {