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alif/alif_flash: Make flash respond to the buffer protocol.

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Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2024-12-24 00:19:20 +11:00
parent af574a86c2
commit d895a62b07
1 changed files with 14 additions and 0 deletions
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14
ports/alif/alif_flash.c
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@@ -80,6 +80,19 @@ static mp_obj_t alif_flash_make_new(const mp_obj_type_t *type, size_t n_args, si
return MP_OBJ_FROM_PTR(self);
}
static mp_int_t alif_flash_get_buffer(mp_obj_t self_in, mp_buffer_info_t *bufinfo, mp_uint_t flags) {
alif_flash_obj_t *self = MP_OBJ_TO_PTR(self_in);
if (flags == MP_BUFFER_READ) {
bufinfo->buf = (void *)(ospi_flash_get_xip_base() + self->flash_base_addr);
bufinfo->len = self->flash_size;
bufinfo->typecode = 'B';
return 0;
} else {
// Can't return a writable buffer.
return 1;
}
}
static mp_obj_t alif_flash_readblocks(size_t n_args, const mp_obj_t *args) {
alif_flash_obj_t *self = MP_OBJ_TO_PTR(args[0]);
uint32_t offset = mp_obj_get_int(args[1]) * MICROPY_HW_FLASH_BLOCK_SIZE_BYTES;
@@ -157,6 +170,7 @@ MP_DEFINE_CONST_OBJ_TYPE(
MP_QSTR_Flash,
MP_TYPE_FLAG_NONE,
make_new, alif_flash_make_new,
buffer, alif_flash_get_buffer,
locals_dict, &alif_flash_locals_dict
);
#endif // MICROPY_HW_ENABLE_OSPI