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uart-bridge: expose both HW UARTs

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With these changes, both HW UARTs will be exposed as two independent USB-UART
bridge controllers.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This commit is contained in:
Álvaro Fernández Rojas 2021-02-04 09:02:27 +01:00
parent 911bf03c80
commit 410eef18ef
4 changed files with 224 additions and 107 deletions
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26
usb-descriptors.c
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@ -31,9 +31,18 @@
#define USBD_VID (0x2E8A) // Raspberry Pi
#define USBD_PID (0x000a) // Raspberry Pi Pico SDK CDC
#define USBD_DESC_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN)
#define USBD_DESC_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN * CFG_TUD_CDC)
#define USBD_MAX_POWER_MA (250)
enum
{
ITF_NUM_CDC_0 = 0,
ITF_NUM_CDC_0_DATA,
ITF_NUM_CDC_1,
ITF_NUM_CDC_1_DATA,
ITF_NUM_TOTAL
};
#define USBD_ITF_CDC (0) // needs 2 interfaces
#define USBD_ITF_MAX (2)
@ -49,6 +58,12 @@
#define USBD_STR_SERIAL (0x03)
#define USBD_STR_CDC (0x04)
#define EPNUM_CDC_0_NOTIF (0x81)
#define EPNUM_CDC_0_DATA (0x02)
#define EPNUM_CDC_1_NOTIF (0x84)
#define EPNUM_CDC_1_DATA (0x05)
// Note: descriptors returned from callbacks must exist long enough for transfer to complete
static const tusb_desc_device_t usbd_desc_device = {
@ -69,11 +84,14 @@ static const tusb_desc_device_t usbd_desc_device = {
};
static const uint8_t usbd_desc_cfg[USBD_DESC_LEN] = {
TUD_CONFIG_DESCRIPTOR(1, USBD_ITF_MAX, USBD_STR_0, USBD_DESC_LEN,
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, USBD_STR_0, USBD_DESC_LEN,
TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, USBD_MAX_POWER_MA),
TUD_CDC_DESCRIPTOR(USBD_ITF_CDC, USBD_STR_CDC, USBD_CDC_EP_CMD,
USBD_CDC_CMD_MAX_SIZE, USBD_CDC_EP_OUT, USBD_CDC_EP_IN, USBD_CDC_IN_OUT_MAX_SIZE),
TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_0, USBD_STR_CDC, EPNUM_CDC_0_NOTIF,
USBD_CDC_CMD_MAX_SIZE, EPNUM_CDC_0_DATA, 0x80 | EPNUM_CDC_0_DATA, USBD_CDC_IN_OUT_MAX_SIZE),
TUD_CDC_DESCRIPTOR(ITF_NUM_CDC_1, USBD_STR_CDC, EPNUM_CDC_1_NOTIF,
USBD_CDC_CMD_MAX_SIZE, EPNUM_CDC_1_DATA, 0x80 | EPNUM_CDC_1_DATA, USBD_CDC_IN_OUT_MAX_SIZE),
};
static const char *const usbd_desc_str[] = {