Return interface ptr from CAN interface creation functions

Author: andoma

src/platform/stm32h7/stm32h7_can.c

@@ -54,7 +54,7 @@ static const struct {
 
 
 
-void
+can_netif_t *
 stm32h7_can_init(int instance, gpio_t can_tx, gpio_t can_rx,
                  unsigned int nominal_bitrate,
                  unsigned int data_bitrate,
@@ -122,7 +122,7 @@ stm32h7_can_init(int instance, gpio_t can_tx, gpio_t can_rx,
                                  output_filter);
   if(err) {
     printf("%s: Failed to initialize\n", name);
-    return;
+    return NULL;
   }
 
   irq_enable_fn_arg(stm32h7_can_interfaces[instance].irq0,
@@ -133,4 +133,5 @@ stm32h7_can_init(int instance, gpio_t can_tx, gpio_t can_rx,
 
   printf("%s: Initialized. Nominal bitrate:%d Data bitrate:%d\n",
          name, nominal_bitrate, data_bitrate);
+  return &fc->cni;
 }

src/platform/stm32h7/stm32h7_can.h

@@ -3,13 +3,14 @@
 #include <mios/io.h>
 
 struct dsig_filter;
+struct can_netif;
 
 #define STM32H7_CAN_TIM3_TIMESTAMPING 0x1
 
-void stm32h7_can_init(int instance, gpio_t can_tx, gpio_t can_rx,
-                      unsigned int nominal_bitrate,
-                      unsigned int data_bitrate,
-                      const struct dsig_filter *input_filter,
-                      const struct dsig_filter *output_filter,
-                      uint32_t flags, const char *name);
+struct can_netif *stm32h7_can_init(int instance, gpio_t can_tx, gpio_t can_rx,
+                                   unsigned int nominal_bitrate,
+                                   unsigned int data_bitrate,
+                                   const struct dsig_filter *input_filter,
+                                   const struct dsig_filter *output_filter,
+                                   uint32_t flags, const char *name);
 

src/platform/tegra234-spe/tegra234-spe_can.c

@@ -38,7 +38,7 @@
 #include "platform/stm32/stm32_fdcan.c"
 
 
-void
+can_netif_t *
 tegra243_spe_can_init(unsigned int nominal_bitrate,
                       unsigned int data_bitrate,
                       const struct dsig_filter *input_filter,
@@ -94,12 +94,13 @@ tegra243_spe_can_init(unsigned int nominal_bitrate,
                                  output_filter);
   if(err) {
     printf("%s: Failed to initialize\n", name);
-    return;
+    return NULL;
   }
 
   irq_enable_fn_arg(IRQ_CAN1_0, IRQ_LEVEL_NET, stm32_fdcan_irq0, fc);
   irq_enable_fn_arg(IRQ_CAN1_1, IRQ_LEVEL_HIGH, stm32_fdcan_irq1, fc);
 
   printf("%s: Initialized. Nominal bitrate:%d Data bitrate:%d\n",
          name, nominal_bitrate, data_bitrate);
+  return &fc->cni;
 }

src/platform/tegra234-spe/tegra234-spe_can.h

@@ -3,9 +3,10 @@
 #include <stdint.h>
 
 struct dsig_filter;
+struct can_netif;
 
-void tegra243_spe_can_init(unsigned int nominal_bitrate,
-                           unsigned int data_bitrate,
-                           const struct dsig_filter *input_filter,
-                           const struct dsig_filter *output_filter,
-                           uint32_t flags, const char *name);
+struct can_netif *tegra243_spe_can_init(unsigned int nominal_bitrate,
+                                        unsigned int data_bitrate,
+                                        const struct dsig_filter *input_filter,
+                                        const struct dsig_filter *output_filter,
+                                        uint32_t flags, const char *name);