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trezor-core
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trezorhal: add stubs for vcp interface

This commit is contained in:
Pavol Rusnak 2017-03-27 00:59:52 +02:00
parent 2c03f97ca9
commit 8eb5cbbe13
4 changed files with 112 additions and 1 deletions
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15
micropython/trezorhal/usb.c
View File

@ -159,6 +159,7 @@ static uint8_t usb_ep_clear_nak(USBD_HandleTypeDef *dev, uint8_t ep_num) {
}
#include "usb_hid-impl.h"
#include "usb_vcp-impl.h"
static uint8_t usb_class_init(USBD_HandleTypeDef *dev, uint8_t cfg_idx) {
for (int i = 0; i < USBD_MAX_NUM_INTERFACES; i++) {
@ -166,6 +167,9 @@ static uint8_t usb_class_init(USBD_HandleTypeDef *dev, uint8_t cfg_idx) {
case USB_IFACE_TYPE_HID:
usb_hid_class_init(dev, &usb_ifaces[i].hid, cfg_idx);
break;
case USB_IFACE_TYPE_VCP:
usb_vcp_class_init(dev, &usb_ifaces[i].vcp, cfg_idx);
break;
default:
break;
}
@ -179,6 +183,9 @@ static uint8_t usb_class_deinit(USBD_HandleTypeDef *dev, uint8_t cfg_idx) {
case USB_IFACE_TYPE_HID:
usb_hid_class_deinit(dev, &usb_ifaces[i].hid, cfg_idx);
break;
case USB_IFACE_TYPE_VCP:
usb_vcp_class_deinit(dev, &usb_ifaces[i].vcp, cfg_idx);
break;
default:
break;
}
@ -197,6 +204,8 @@ static uint8_t usb_class_setup(USBD_HandleTypeDef *dev, USBD_SetupReqTypedef *re
switch (usb_ifaces[req->wIndex].type) {
case USB_IFACE_TYPE_HID:
return usb_hid_class_setup(dev, &usb_ifaces[req->wIndex].hid, req);
case USB_IFACE_TYPE_VCP:
return usb_vcp_class_setup(dev, &usb_ifaces[req->wIndex].vcp, req);
default:
return USBD_FAIL;
}
@ -212,6 +221,9 @@ static uint8_t usb_class_data_in(USBD_HandleTypeDef *dev, uint8_t ep_num) {
case USB_IFACE_TYPE_HID:
usb_hid_class_data_in(dev, &usb_ifaces[i].hid, ep_num);
break;
case USB_IFACE_TYPE_VCP:
usb_vcp_class_data_in(dev, &usb_ifaces[i].vcp, ep_num);
break;
default:
break;
}
@ -225,6 +237,9 @@ static uint8_t usb_class_data_out(USBD_HandleTypeDef *dev, uint8_t ep_num) {
case USB_IFACE_TYPE_HID:
usb_hid_class_data_out(dev, &usb_ifaces[i].hid, ep_num);
break;
case USB_IFACE_TYPE_VCP:
usb_vcp_class_data_out(dev, &usb_ifaces[i].vcp, ep_num);
break;
default:
break;
}

4
micropython/trezorhal/usb.h
View File

@ -81,16 +81,18 @@ typedef struct {
typedef enum {
USB_IFACE_TYPE_DISABLED = 0,
// USB_IFACE_TYPE_CDC = 1,
USB_IFACE_TYPE_VCP = 1,
// USB_IFACE_TYPE_MSC = 2,
USB_IFACE_TYPE_HID = 3,
} usb_iface_type_t;
#include "usb_hid-defs.h"
#include "usb_vcp-defs.h"
typedef struct {
union {
usb_hid_state_t hid;
usb_vcp_state_t vcp;
};
usb_iface_type_t type;
} usb_iface_t;

31
micropython/trezorhal/usb_vcp-defs.h Normal file
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@ -0,0 +1,31 @@
typedef struct __attribute__((packed)) {
} usb_vcp_descriptor_t;
typedef struct __attribute__((packed)) {
usb_interface_descriptor_t iface;
usb_vcp_descriptor_t vcp;
usb_endpoint_descriptor_t ep_in;
usb_endpoint_descriptor_t ep_out;
usb_endpoint_descriptor_t ep_cmd;
} usb_vcp_descriptor_block_t;
typedef struct {
// Interface configuration
uint8_t iface_num; // Address of this VCP interface
uint8_t ep_in; // Address of IN endpoint (with the highest bit set)
uint8_t ep_out; // Address of OUT endpoint
uint8_t ep_cmd; // Address of CMD endpoint
} usb_vcp_info_t;
typedef struct {
const usb_vcp_descriptor_block_t *desc_block;
} usb_vcp_state_t;
int usb_vcp_add(const usb_vcp_info_t *vcp_info);
int usb_vcp_can_read(uint8_t iface_num);
int usb_vcp_can_write(uint8_t iface_num);
int usb_vcp_read(uint8_t iface_num, uint8_t *buf, uint32_t len);
int usb_vcp_write(uint8_t iface_num, const uint8_t *buf, uint32_t len);
int usb_vcp_read_blocking(uint8_t iface_num, uint8_t *buf, uint32_t len, uint32_t timeout);
int usb_vcp_write_blocking(uint8_t iface_num, const uint8_t *buf, uint32_t len, uint32_t timeout);

63
micropython/trezorhal/usb_vcp-impl.h Normal file
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@ -0,0 +1,63 @@
/* usb_vcp_add adds and configures new USB VCP interface according to
* configuration options passed in `info`. */
int usb_vcp_add(const usb_vcp_info_t *info) {
return 0;
}
int usb_vcp_can_read(uint8_t iface_num) {
return 0;
}
int usb_vcp_can_write(uint8_t iface_num) {
return 0;
}
int usb_vcp_read(uint8_t iface_num, uint8_t *buf, uint32_t len) {
return 0;
}
int usb_vcp_write(uint8_t iface_num, const uint8_t *buf, uint32_t len) {
return 0;
}
int usb_vcp_read_blocking(uint8_t iface_num, uint8_t *buf, uint32_t len, uint32_t timeout) {
uint32_t start = HAL_GetTick();
while (!usb_vcp_can_read(iface_num)) {
if (HAL_GetTick() - start >= timeout) {
return 0; // Timeout
}
__WFI(); // Enter sleep mode, waiting for interrupt
}
return usb_vcp_read(iface_num, buf, len);
}
int usb_vcp_write_blocking(uint8_t iface_num, const uint8_t *buf, uint32_t len, uint32_t timeout) {
uint32_t start = HAL_GetTick();
while (!usb_vcp_can_write(iface_num)) {
if (HAL_GetTick() - start >= timeout) {
return 0; // Timeout
}
__WFI(); // Enter sleep mode, waiting for interrupt
}
return usb_vcp_write(iface_num, buf, len);
}
static int usb_vcp_class_init(USBD_HandleTypeDef *dev, usb_vcp_state_t *state, uint8_t cfg_idx) {
return USBD_OK;
}
static int usb_vcp_class_deinit(USBD_HandleTypeDef *dev, usb_vcp_state_t *state, uint8_t cfg_idx) {
return USBD_OK;
}
static int usb_vcp_class_setup(USBD_HandleTypeDef *dev, usb_vcp_state_t *state, USBD_SetupReqTypedef *req) {
return USBD_OK;
}
static uint8_t usb_vcp_class_data_in(USBD_HandleTypeDef *dev, usb_vcp_state_t *state, uint8_t ep_num) {
return USBD_OK;
}
static uint8_t usb_vcp_class_data_out(USBD_HandleTypeDef *dev, usb_vcp_state_t *state, uint8_t ep_num) {
return USBD_OK;
}