Add USB DFU and OTG console SOC capability flags for esp32s2, esp32s3, and esp32p4.
Use these caps in Kconfig, documentation conditionals, and idf.py DFU actions so USB support
is derived from SOC capabilities instead of hardcoded target names.
stdio_vfs.c (the sole definition of esp_vfs_include_console_register)
is only added to the source list on non-Linux targets. The trailing
target_link_libraries(... -u esp_vfs_include_console_register) was
applied whenever CONFIG_VFS_SUPPORT_IO was enabled, including on the
Linux host build where the symbol is not part of the link. Constrain
the force-undef to the same condition that opts the defining source
in.
Remove the internal fd table (fd_entry_t, is_fd_valid, fd_allows_read/write,
ESP_STDIO_BASIC_MODE tracking) from the console VFS.
Instead, console_open forwards directly to the primary backend's open_p,
so each open("/dev/console") creates a real fd in the underlying driver.
Read/write/fstat/fcntl/fsync all operate on the per-open fd from the
primary, not a stored init-time fd.
Structure:
- s_primary: separate variable for the primary backend entry
- s_auxiliary[]: slot-based array for auxiliary sinks (NULL = free)
- Scans all slots (no count variable) with NULL guards
- Auxiliaries opened lazily on first console open
- Closed when last console fd is closed (refcounted via s_open_count)
- Write and fsync fan-out protected by s_lock
Map logical /dev/console fds to the primary sink fd for select.
This avoids probing UART1/UART2 for stdout/stderr and keeps UART select state consistent.
Add stdio regression checks for logical fd mapping and symmetric uart_end_select teardown.
- Move the linux repl chip and deprecate chip related functions
- Update location of driver specific default config
- Add missing comments on the newly added functions in the affected components.
- Removed conditional definitions for various RCC_ATOMIC macros across
multiple files, replacing them with a unified PERIPH_RCC_ATOMIC() macro.
- Updated instances where specific RCC_ATOMIC macros were used to ensure
consistent usage of PERIPH_RCC_ATOMIC().
- Deleted unused uart_share_hw_ctrl.h file as its functionality is now
integrated into the new structure.
esp_stdio contains everything the old esp_vfs_console contained (the vfs stdio glue layer)
as well as other functionality related to stdio (previously referred to as console)
