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shared/tinyusb: Allow max USB descriptor string to be configured. 

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2023-04-04 11:57:25 +10:00
parent 0a3600a9ad
commit 783ddfc264
4 changed files with 9 additions and 8 deletions
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2
ports/rp2/usbd.c
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@ -38,7 +38,7 @@ void mp_usbd_port_get_serial_number(char *serial_buf) {
pico_get_unique_board_id(&id); pico_get_unique_board_id(&id);
// convert to hex // convert to hex
int hexlen = sizeof(id.id) * 2; int hexlen = sizeof(id.id) * 2;
MP_STATIC_ASSERT(hexlen <= USBD_DESC_STR_MAX); MP_STATIC_ASSERT(hexlen <= MICROPY_HW_USB_DESC_STR_MAX);
for (int i = 0; i < hexlen; i += 2) { for (int i = 0; i < hexlen; i += 2) {
static const char *hexdig = "0123456789abcdef"; static const char *hexdig = "0123456789abcdef";
serial_buf[i] = hexdig[id.id[i / 2] >> 4]; serial_buf[i] = hexdig[id.id[i / 2] >> 4];

2
shared/tinyusb/mp_usbd.h
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@ -33,7 +33,7 @@
void mp_usbd_task(void); void mp_usbd_task(void);
// Function to be implemented in port code. // Function to be implemented in port code.
// Can write a string up to USBD_DESC_STR_MAX characters long, plus terminating byte. // Can write a string up to MICROPY_HW_USB_DESC_STR_MAX characters long, plus terminating byte.
extern void mp_usbd_port_get_serial_number(char *buf); extern void mp_usbd_port_get_serial_number(char *buf);
#endif // MICROPY_INCLUDED_SHARED_TINYUSB_USBD_H #endif // MICROPY_INCLUDED_SHARED_TINYUSB_USBD_H

6
shared/tinyusb/mp_usbd_descriptor.c
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@ -67,8 +67,8 @@ const uint8_t mp_usbd_desc_cfg_static[USBD_STATIC_DESC_LEN] = {
}; };
const uint16_t *tud_descriptor_string_cb(uint8_t index, uint16_t langid) { const uint16_t *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
char serial_buf[USBD_DESC_STR_MAX + 1]; // Includes terminating NUL byte char serial_buf[MICROPY_HW_USB_DESC_STR_MAX + 1]; // Includes terminating NUL byte
static uint16_t desc_wstr[USBD_DESC_STR_MAX + 1]; // Includes prefix uint16_t static uint16_t desc_wstr[MICROPY_HW_USB_DESC_STR_MAX + 1]; // Includes prefix uint16_t
const char *desc_str; const char *desc_str;
uint16_t desc_len; uint16_t desc_len;
@ -109,7 +109,7 @@ const uint16_t *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
// Convert from narrow string to wide string // Convert from narrow string to wide string
desc_len = 2; desc_len = 2;
for (int i = 0; i < USBD_DESC_STR_MAX && desc_str[i] != 0; i++) { for (int i = 0; i < MICROPY_HW_USB_DESC_STR_MAX && desc_str[i] != 0; i++) {
desc_wstr[1 + i] = desc_str[i]; desc_wstr[1 + i] = desc_str[i];
desc_len += 2; desc_len += 2;
} }

7
shared/tinyusb/tusb_config.h
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@ -27,8 +27,7 @@
#ifndef MICROPY_INCLUDED_SHARED_TINYUSB_TUSB_CONFIG_H #ifndef MICROPY_INCLUDED_SHARED_TINYUSB_TUSB_CONFIG_H
#define MICROPY_INCLUDED_SHARED_TINYUSB_TUSB_CONFIG_H #define MICROPY_INCLUDED_SHARED_TINYUSB_TUSB_CONFIG_H
#include <py/mpconfig.h> #include "py/mpconfig.h"
#include "mpconfigport.h"
#if MICROPY_HW_ENABLE_USBDEV #if MICROPY_HW_ENABLE_USBDEV
@ -90,7 +89,9 @@
#define USBD_MAX_POWER_MA (250) #define USBD_MAX_POWER_MA (250)
#define USBD_DESC_STR_MAX (20) #ifndef MICROPY_HW_USB_DESC_STR_MAX
#define MICROPY_HW_USB_DESC_STR_MAX (20)
#endif
#if CFG_TUD_CDC #if CFG_TUD_CDC
#define USBD_ITF_CDC (0) // needs 2 interfaces #define USBD_ITF_CDC (0) // needs 2 interfaces