shared/tinyusb: Allow max USB descriptor string to be configured.
Signed-off-by: Damien George <damien@micropython.org>
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@ -38,7 +38,7 @@ void mp_usbd_port_get_serial_number(char *serial_buf) {
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pico_get_unique_board_id(&id);
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// convert to hex
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int hexlen = sizeof(id.id) * 2;
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MP_STATIC_ASSERT(hexlen <= USBD_DESC_STR_MAX);
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MP_STATIC_ASSERT(hexlen <= MICROPY_HW_USB_DESC_STR_MAX);
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for (int i = 0; i < hexlen; i += 2) {
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static const char *hexdig = "0123456789abcdef";
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serial_buf[i] = hexdig[id.id[i / 2] >> 4];
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@ -33,7 +33,7 @@
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void mp_usbd_task(void);
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// Function to be implemented in port code.
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// Can write a string up to USBD_DESC_STR_MAX characters long, plus terminating byte.
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// Can write a string up to MICROPY_HW_USB_DESC_STR_MAX characters long, plus terminating byte.
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extern void mp_usbd_port_get_serial_number(char *buf);
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#endif // MICROPY_INCLUDED_SHARED_TINYUSB_USBD_H
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@ -67,8 +67,8 @@ const uint8_t mp_usbd_desc_cfg_static[USBD_STATIC_DESC_LEN] = {
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};
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const uint16_t *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
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char serial_buf[USBD_DESC_STR_MAX + 1]; // Includes terminating NUL byte
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static uint16_t desc_wstr[USBD_DESC_STR_MAX + 1]; // Includes prefix uint16_t
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char serial_buf[MICROPY_HW_USB_DESC_STR_MAX + 1]; // Includes terminating NUL byte
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static uint16_t desc_wstr[MICROPY_HW_USB_DESC_STR_MAX + 1]; // Includes prefix uint16_t
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const char *desc_str;
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uint16_t desc_len;
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@ -109,7 +109,7 @@ const uint16_t *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
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// Convert from narrow string to wide string
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desc_len = 2;
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for (int i = 0; i < USBD_DESC_STR_MAX && desc_str[i] != 0; i++) {
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for (int i = 0; i < MICROPY_HW_USB_DESC_STR_MAX && desc_str[i] != 0; i++) {
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desc_wstr[1 + i] = desc_str[i];
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desc_len += 2;
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}
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@ -27,8 +27,7 @@
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#ifndef MICROPY_INCLUDED_SHARED_TINYUSB_TUSB_CONFIG_H
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#define MICROPY_INCLUDED_SHARED_TINYUSB_TUSB_CONFIG_H
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#include <py/mpconfig.h>
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#include "mpconfigport.h"
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#include "py/mpconfig.h"
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#if MICROPY_HW_ENABLE_USBDEV
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@ -90,7 +89,9 @@
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#define USBD_MAX_POWER_MA (250)
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#define USBD_DESC_STR_MAX (20)
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#ifndef MICROPY_HW_USB_DESC_STR_MAX
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#define MICROPY_HW_USB_DESC_STR_MAX (20)
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#endif
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#if CFG_TUD_CDC
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#define USBD_ITF_CDC (0) // needs 2 interfaces
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