trezorhal: make touch_init and usb_init return void, use ensure inside

embed/bootloader/main.c

@@ -161,7 +161,7 @@ void usb_init_all(void) {
         .report_desc      = hid_report_desc,
     };
 
-    ensure(usb_init(&dev_info), NULL);
+    usb_init(&dev_info);
     ensure(0 == usb_hid_add(&hid_info), NULL);
     usb_start();
 }
@@ -267,7 +267,7 @@ int main(void)
 
     display_orientation(0);
 
-    ensure(touch_init(), NULL);
+    touch_init();
 
     // delay to detect touch
     uint32_t touched = 0;

embed/extmod/modtrezorio/modtrezorio-msg.h

@@ -439,9 +439,7 @@ STATIC mp_obj_t mod_trezorio_USB_open(mp_obj_t self) {
     mp_obj_get_array(MP_OBJ_FROM_PTR(&o->ifaces), &iface_cnt, &iface_objs);
 
     // Initialize the USB stack
-    if (usb_init(&o->info) != true) {
-        mp_raise_msg(&mp_type_RuntimeError, "failed to initialize USB");
-    }
+    usb_init(&o->info);
 
     int vcp_iface_num = -1;
 

embed/extmod/modtrezorio/unix-msg-mock.h

@@ -13,6 +13,7 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "../../unix/common.h"
 #include "../../trezorhal/usb.h"
 #include "../../trezorhal/touch.h"
 
@@ -23,13 +24,11 @@ static int sock;
 static struct sockaddr_in si_me, si_other;
 static socklen_t slen = 0;
 
-bool usb_init(const usb_dev_info_t *dev_info) {
+void usb_init(const usb_dev_info_t *dev_info) {
     (void)dev_info;
 
     sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
-    if (sock < 0) {
-        return false;
-    }
+    ensure(sock >= 0, NULL);
 
     fcntl(sock, F_SETFL, O_NONBLOCK);
 
@@ -47,12 +46,7 @@ bool usb_init(const usb_dev_info_t *dev_info) {
         si_me.sin_port = htons(TREZOR_UDP_PORT);
     }
 
-    int b = bind(sock, (struct sockaddr*)&si_me, sizeof(si_me));
-    if (b < 0) {
-        return false;
-    }
-
-    return true;
+    ensure(0 == bind(sock, (struct sockaddr*)&si_me, sizeof(si_me)), NULL);
 }
 
 void usb_deinit(void) {

embed/firmware/main.c

@@ -28,7 +28,7 @@ int main(void)
     display_orientation(0);
 
     sdcard_init();
-    ensure(touch_init(), NULL);
+    touch_init();
 
     for (;;) {
         printf("CORE: Starting main loop\n");

embed/trezorhal/touch.c

@@ -8,13 +8,15 @@
 #include STM32_HAL_H
 
 #include <string.h>
+
+#include "common.h"
 #include "touch.h"
 
 I2C_HandleTypeDef i2c_handle = {
     .Instance = I2C1,
 };
 
-bool touch_init(void)
+void touch_init(void)
 {
     // Enable I2C clock
     __HAL_RCC_I2C1_CLK_ENABLE();
@@ -39,12 +41,7 @@ bool touch_init(void)
     init->NoStretchMode   = I2C_NOSTRETCH_DISABLE;
     init->OwnAddress2     = 0;
 
-    // Init I2C handle
-    if (HAL_I2C_Init(&i2c_handle) != HAL_OK) {
-        return false;
-    }
-
-    return true;
+    ensure(HAL_I2C_Init(&i2c_handle) == HAL_OK, NULL);
 }
 
 #define TOUCH_ADDRESS 56

embed/trezorhal/touch.h

@@ -15,7 +15,7 @@
 #define TOUCH_MOVE  0x00020000
 #define TOUCH_END   0x00040000
 
-bool touch_init(void);
+void touch_init(void);
 uint32_t touch_read(void);
 void touch_click(void);
 

embed/trezorhal/usb.c

@@ -7,6 +7,7 @@
 
 #include STM32_HAL_H
 
+#include "common.h"
 #include "usb.h"
 #include "usbd_core.h"
 
@@ -41,15 +42,11 @@ static USBD_HandleTypeDef usb_dev_handle;
 static const USBD_DescriptorsTypeDef usb_descriptors;
 static const USBD_ClassTypeDef usb_class;
 
-static int check_desc_str(const uint8_t *s) {
-    if (!s || strlen((const char *)s) > USB_MAX_STR_SIZE) {
-        return 1;
-    } else {
-        return 0;
-    }
+static bool check_desc_str(const uint8_t *s) {
+    return s && strlen((const char *)s) <= USB_MAX_STR_SIZE;
 }
 
-bool usb_init(const usb_dev_info_t *dev_info) {
+void usb_init(const usb_dev_info_t *dev_info) {
 
     // Device descriptor
     usb_dev_desc.bLength            = sizeof(usb_device_descriptor_t);
@@ -68,11 +65,10 @@ bool usb_init(const usb_dev_info_t *dev_info) {
     usb_dev_desc.bNumConfigurations = 1;
 
     // String table
-    if ((0 != check_desc_str(dev_info->manufacturer)) ||
-        (0 != check_desc_str(dev_info->product)) ||
-        (0 != check_desc_str(dev_info->serial_number))) {
-        return false; // Invalid descriptor string
-    }
+    ensure(check_desc_str(dev_info->manufacturer), NULL);
+    ensure(check_desc_str(dev_info->product), NULL);
+    ensure(check_desc_str(dev_info->serial_number), NULL);
+
     usb_str_table.manufacturer  = dev_info->manufacturer;
     usb_str_table.product       = dev_info->product;
     usb_str_table.serial_number = dev_info->serial_number;
@@ -90,14 +86,8 @@ bool usb_init(const usb_dev_info_t *dev_info) {
     // Pointer to interface descriptor data
     usb_next_iface_desc = (usb_interface_descriptor_t *)(usb_config_buf + usb_config_desc->wTotalLength);
 
-    if (0 != USBD_Init(&usb_dev_handle, (USBD_DescriptorsTypeDef*)&usb_descriptors, USB_PHY_ID)) {
-        return false;
-    }
-    if (0 != USBD_RegisterClass(&usb_dev_handle, (USBD_ClassTypeDef*)&usb_class)) {
-        return false;
-    }
-
-    return true;
+    ensure(USBD_OK == USBD_Init(&usb_dev_handle, (USBD_DescriptorsTypeDef*)&usb_descriptors, USB_PHY_ID), NULL);
+    ensure(USBD_OK == USBD_RegisterClass(&usb_dev_handle, (USBD_ClassTypeDef*)&usb_class), NULL);
 }
 
 void usb_deinit(void) {

embed/trezorhal/usb.h

@@ -117,7 +117,7 @@ typedef struct {
     usb_iface_type_t type;
 } usb_iface_t;
 
-bool usb_init(const usb_dev_info_t *dev_info);
+void usb_init(const usb_dev_info_t *dev_info);
 void usb_deinit(void);
 void usb_start(void);
 void usb_stop(void);