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chipset/bcm: sync on hci complete for HCI Reset

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This commit is contained in:
Matthias Ringwald 2023-04-20 11:21:23 +02:00
parent efef2dd3af
commit e957bdcbde
1 changed files with 31 additions and 7 deletions
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38
chipset/bcm/btstack_chipset_bcm_download_firmware.c
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@ -61,29 +61,52 @@ static const btstack_uart_block_t * uart_driver;
static const btstack_chipset_t * chipset;
static uint8_t response_buffer[260];
static uint16_t response_buffer_len;
static uint8_t command_buffer[260];
static const int hci_command_complete_len = 7;
static const uint8_t hci_reset_cmd[] = { 0x03, 0x0c, 0x00 };
// static const uint8_t hci_update_baud_rate[] = { 0x01, 0x18, 0xfc, 0x06, 0x00, 0x00,0x00, 0x00, 0x00, 0x00 };
static const uint8_t hci_command_complete_reset[] = { 0x04, 0x0e, 0x04, 0x01, 0x03, 0x0c, 0x00};
static void (*download_complete)(int result);
static int baudrate;
static uint32_t baudrate;
static void bcm_send_prepared_command(void){
uart_driver->receive_block(&response_buffer[0], hci_command_complete_len);
int size = 1 + 3 + command_buffer[3];
command_buffer[0] = 1;
hci_dump_packet(HCI_COMMAND_DATA_PACKET, 0, &command_buffer[1], size-1);
uart_driver->receive_block(&response_buffer[0], hci_command_complete_len);
uart_driver->send_block(command_buffer, size);
}
// Although the Controller just has been reset by the user, there might still be HCI data in the UART driver
// which we'll ignore in the receive function
static void bcm_receive_command_complete_reset(void){
response_buffer_len++;
if (response_buffer_len == hci_command_complete_len){
// try to match command complete for HCI Reset
if (memcmp(response_buffer, hci_command_complete_reset, hci_command_complete_len) == 0){
bcm_w4_command_complete();
return;
}
memmove(&response_buffer[0], &response_buffer[1], response_buffer_len - 1);
response_buffer_len--;
}
uart_driver->receive_block(&response_buffer[response_buffer_len], 1);
}
static void bcm_send_hci_reset(void){
log_info("bcm: send HCI Reset");
bool send_baudrate = (baudrate != 0) && (baudrate != 115200);
uart_driver->set_block_received(send_baudrate ? &bcm_send_hci_baudrate : &bcm_w4_command_complete);
uart_driver->receive_block(&response_buffer[0], hci_command_complete_len);
response_buffer_len = 0;
uart_driver->set_block_received(&bcm_receive_command_complete_reset);
uart_driver->receive_block(&response_buffer[response_buffer_len], 1);
command_buffer[0] = 1;
memcpy(&command_buffer[1], hci_reset_cmd, sizeof(hci_reset_cmd));
bcm_send_prepared_command();
uint16_t size = sizeof(hci_reset_cmd);
hci_dump_packet(HCI_COMMAND_DATA_PACKET, 0, &command_buffer[1], size);
uart_driver->send_block(command_buffer, size + 1);
}
static void bcm_send_hci_baudrate(void){
@ -104,6 +127,7 @@ static void bcm_set_local_baudrate(void){
static void bcm_w4_command_complete(void){
hci_dump_packet(HCI_EVENT_PACKET, 0, &response_buffer[1], hci_command_complete_len-1);
uart_driver->set_block_received(&bcm_w4_command_complete);
bcm_send_next_init_script_command();
}