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stm32/usb: Add USB device mode for VCP+VCP without MSC. 

Selectable via pyb.usb_mode('VCP+VCP').
This commit is contained in:
Andrew Leech 2019-04-26 16:31:49 +10:00 committed by Damien George
parent 0646e607b5
commit 70a28e3ad9
3 changed files with 19 additions and 0 deletions
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5
ports/stm32/usb.c
View File

@ -306,6 +306,11 @@ STATIC mp_obj_t pyb_usb_mode(size_t n_args, const mp_obj_t *pos_args, mp_map_t *
}
mode = USBD_MODE_CDC_MSC;
#if MICROPY_HW_USB_ENABLE_CDC2
} else if (strcmp(mode_str, "VCP+VCP") == 0) {
if (args[2].u_int == -1) {
pid = USBD_PID_CDC2;
}
mode = USBD_MODE_CDC2;
} else if (strcmp(mode_str, "VCP+VCP+MSC") == 0) {
if (args[2].u_int == -1) {
pid = USBD_PID_CDC2_MSC;

1
ports/stm32/usb.h
View File

@ -37,6 +37,7 @@
#define USBD_PID_CDC (0x9802)
#define USBD_PID_MSC (0x9803)
#define USBD_PID_CDC2_MSC (0x9804)
#define USBD_PID_CDC2 (0x9805)
typedef enum {
PYB_USB_STORAGE_MEDIUM_NONE = 0,

13
ports/stm32/usbdev/class/src/usbd_cdc_msc_hid.c
View File

@ -62,6 +62,7 @@
#define CDC_IFACE_NUM_ALONE (0)
#define CDC_IFACE_NUM_WITH_MSC (1)
#define CDC2_IFACE_NUM_WITH_CDC (2)
#define CDC2_IFACE_NUM_WITH_MSC (3)
#define CDC_IFACE_NUM_WITH_HID (1)
#define MSC_IFACE_NUM_WITH_CDC (0)
@ -474,6 +475,18 @@ int USBD_SelectMode(usbd_cdc_msc_hid_state_t *usbd, uint32_t mode, USBD_HID_Mode
break;
#if MICROPY_HW_USB_ENABLE_CDC2
case USBD_MODE_CDC2: {
// Ensure the first interface is also enabled
usbd->usbd_mode |= USBD_MODE_CDC;
n += make_cdc_desc(d + n, 1, CDC_IFACE_NUM_ALONE);
n += make_cdc_desc_ep(d + n, 1, CDC2_IFACE_NUM_WITH_CDC, CDC2_CMD_EP, CDC2_OUT_EP, CDC2_IN_EP);
usbd->cdc->iface_num = CDC_IFACE_NUM_ALONE;
usbd->cdc2->iface_num = CDC2_IFACE_NUM_WITH_CDC;
num_itf = 4;
break;
}
case USBD_MODE_CDC2_MSC: {
n += make_msc_desc(d + n);
n += make_cdc_desc(d + n, 1, CDC_IFACE_NUM_WITH_MSC);