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extmod/btstack: Add btstack support for _IRQ_GATTS_READ_REQUEST.

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Andrew Leech 2020-08-15 14:06:19 +10:00 committed by Damien George
parent 52a2ce45de
commit 8b00aeab8f
1 changed files with 19 additions and 6 deletions
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25
extmod/btstack/modbluetooth_btstack.c
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@ -825,24 +825,37 @@ int mp_bluetooth_gatts_register_service_begin(bool append) {
}
STATIC uint16_t att_read_callback(hci_con_handle_t connection_handle, uint16_t att_handle, uint16_t offset, uint8_t *buffer, uint16_t buffer_size) {
// Should return data length, 0 for error, or -1 for delayed response.
// For more details search "*att_read_callback*" in micropython/lib/btstack/doc/manual/docs/profiles.md
(void)connection_handle;
DEBUG_printf("btstack: att_read_callback (handle: %u, offset: %u, buffer: %p, size: %u)\n", att_handle, offset, buffer, buffer_size);
DEBUG_printf("att_read_callback (handle: %u, offset: %u, buffer: %p, size: %u)\n", att_handle, offset, buffer, buffer_size);
mp_bluetooth_gatts_db_entry_t *entry = mp_bluetooth_gatts_db_lookup(MP_STATE_PORT(bluetooth_btstack_root_pointers)->gatts_db, att_handle);
if (!entry) {
DEBUG_printf("btstack: att_read_callback handle not found\n");
return 0; // TODO: Find status code for not-found.
DEBUG_printf("att_read_callback handle not found\n");
return 0;
}
return att_read_callback_handle_blob(entry->data, entry->data_len, offset, buffer, buffer_size);
#if MICROPY_PY_BLUETOOTH_GATTS_ON_READ_CALLBACK
// Allow Python code to override value (by using gatts_write), or deny (by returning false) the read.
if ((buffer == NULL) && (buffer_size == 0)) {
if (!mp_bluetooth_gatts_on_read_request(connection_handle, att_handle)) {
DEBUG_printf("att_read_callback: read request denied\n");
return 0;
}
}
#endif
uint16_t ret = att_read_callback_handle_blob(entry->data, entry->data_len, offset, buffer, buffer_size);
return ret;
}
STATIC int att_write_callback(hci_con_handle_t connection_handle, uint16_t att_handle, uint16_t transaction_mode, uint16_t offset, uint8_t *buffer, uint16_t buffer_size) {
(void)offset;
(void)transaction_mode;
DEBUG_printf("btstack: att_write_callback (handle: %u, mode: %u, offset: %u, buffer: %p, size: %u)\n", att_handle, transaction_mode, offset, buffer, buffer_size);
DEBUG_printf("att_write_callback (handle: %u, mode: %u, offset: %u, buffer: %p, size: %u)\n", att_handle, transaction_mode, offset, buffer, buffer_size);
mp_bluetooth_gatts_db_entry_t *entry = mp_bluetooth_gatts_db_lookup(MP_STATE_PORT(bluetooth_btstack_root_pointers)->gatts_db, att_handle);
if (!entry) {
DEBUG_printf("btstack: att_write_callback handle not found\n");
DEBUG_printf("att_write_callback handle not found\n");
return 0; // TODO: Find status code for not-found.
}