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bcm: limit uart to 3 mbps

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This commit is contained in:
Matthias Ringwald 2016-01-04 14:22:48 +01:00
parent 9227d9a864
commit fab26ab36e
1 changed files with 31 additions and 11 deletions
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42
src/hci.c
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@ -903,8 +903,13 @@ static void hci_initializing_run(void){
hci_stack->substate = HCI_INIT_W4_SEND_RESET_ST_WARM_BOOT; hci_stack->substate = HCI_INIT_W4_SEND_RESET_ST_WARM_BOOT;
hci_send_cmd(&hci_reset); hci_send_cmd(&hci_reset);
break; break;
case HCI_INIT_SEND_BAUD_CHANGE: case HCI_INIT_SEND_BAUD_CHANGE: {
hci_stack->control->baudrate_cmd(hci_stack->config, ((hci_uart_config_t *)hci_stack->config)->baudrate_main, hci_stack->hci_packet_buffer); uint32_t baud_rate = ((hci_uart_config_t *)hci_stack->config)->baudrate_main;
// Limit baud rate for Broadcom chipsets to 3 mbps
if (hci_stack->manufacturer == 0x000f && baud_rate > 3000000){
baud_rate = 3000000;
}
hci_stack->control->baudrate_cmd(hci_stack->config, baud_rate, hci_stack->hci_packet_buffer);
hci_stack->last_cmd_opcode = READ_BT_16(hci_stack->hci_packet_buffer, 0); hci_stack->last_cmd_opcode = READ_BT_16(hci_stack->hci_packet_buffer, 0);
hci_stack->substate = HCI_INIT_W4_SEND_BAUD_CHANGE; hci_stack->substate = HCI_INIT_W4_SEND_BAUD_CHANGE;
hci_send_cmd_packet(hci_stack->hci_packet_buffer, 3 + hci_stack->hci_packet_buffer[2]); hci_send_cmd_packet(hci_stack->hci_packet_buffer, 3 + hci_stack->hci_packet_buffer[2]);
@ -915,12 +920,19 @@ static void hci_initializing_run(void){
run_loop_add_timer(&hci_stack->timeout); run_loop_add_timer(&hci_stack->timeout);
} }
break; break;
case HCI_INIT_SEND_BAUD_CHANGE_BCM: }
hci_stack->control->baudrate_cmd(hci_stack->config, ((hci_uart_config_t *)hci_stack->config)->baudrate_main, hci_stack->hci_packet_buffer); case HCI_INIT_SEND_BAUD_CHANGE_BCM: {
uint32_t baud_rate = ((hci_uart_config_t *)hci_stack->config)->baudrate_main;
// Limit baud rate for Broadcom chipsets to 3 mbps
if (hci_stack->manufacturer == 0x000f && baud_rate > 3000000){
baud_rate = 3000000;
}
hci_stack->control->baudrate_cmd(hci_stack->config, baud_rate, hci_stack->hci_packet_buffer);
hci_stack->last_cmd_opcode = READ_BT_16(hci_stack->hci_packet_buffer, 0); hci_stack->last_cmd_opcode = READ_BT_16(hci_stack->hci_packet_buffer, 0);
hci_stack->substate = HCI_INIT_W4_SEND_BAUD_CHANGE_BCM; hci_stack->substate = HCI_INIT_W4_SEND_BAUD_CHANGE_BCM;
hci_send_cmd_packet(hci_stack->hci_packet_buffer, 3 + hci_stack->hci_packet_buffer[2]); hci_send_cmd_packet(hci_stack->hci_packet_buffer, 3 + hci_stack->hci_packet_buffer[2]);
break; break;
}
case HCI_INIT_CUSTOM_INIT: case HCI_INIT_CUSTOM_INIT:
log_info("Custom init"); log_info("Custom init");
// Custom initialization // Custom initialization
@ -1119,11 +1131,15 @@ static void hci_initializing_event_handler(uint8_t * packet, uint16_t size){
return; return;
case HCI_INIT_W4_SEND_BAUD_CHANGE: case HCI_INIT_W4_SEND_BAUD_CHANGE:
// for STLC2500D, baud rate change already happened. // for STLC2500D, baud rate change already happened.
// for CC256x, baud rate gets changed now // for others, baud rate gets changed now
if (hci_stack->manufacturer != 0x0030){ if (hci_stack->manufacturer != 0x0030){
uint32_t new_baud = ((hci_uart_config_t *)hci_stack->config)->baudrate_main; // Limit baud rate for Broadcom chipsets to 3 mbps
log_info("Local baud rate change to %"PRIu32, new_baud); uint32_t baud_rate = ((hci_uart_config_t *)hci_stack->config)->baudrate_main;
hci_stack->hci_transport->set_baudrate(new_baud); if (hci_stack->manufacturer == 0x000f && baud_rate > 3000000){
baud_rate = 3000000;
}
log_info("Local baud rate change to %"PRIu32, baud_rate);
hci_stack->hci_transport->set_baudrate(baud_rate);
} }
hci_stack->substate = HCI_INIT_CUSTOM_INIT; hci_stack->substate = HCI_INIT_CUSTOM_INIT;
return; return;
@ -1147,9 +1163,13 @@ static void hci_initializing_event_handler(uint8_t * packet, uint16_t size){
hci_stack->substate = HCI_INIT_READ_BD_ADDR; hci_stack->substate = HCI_INIT_READ_BD_ADDR;
return; return;
case HCI_INIT_W4_SEND_BAUD_CHANGE_BCM: { case HCI_INIT_W4_SEND_BAUD_CHANGE_BCM: {
uint32_t new_baud = ((hci_uart_config_t *)hci_stack->config)->baudrate_main; // Limit baud rate for Broadcom chipsets to 3 mbps
log_info("Local baud rate change to %"PRIu32" after init script", new_baud); uint32_t baud_rate = ((hci_uart_config_t *)hci_stack->config)->baudrate_main;
hci_stack->hci_transport->set_baudrate(new_baud); if (hci_stack->manufacturer == 0x000f && baud_rate > 3000000){
baud_rate = 3000000;
}
log_info("Local baud rate change to %"PRIu32" after init script", baud_rate);
hci_stack->hci_transport->set_baudrate(baud_rate);
if (need_addr_change){ if (need_addr_change){
hci_stack->substate = HCI_INIT_SET_BD_ADDR; hci_stack->substate = HCI_INIT_SET_BD_ADDR;
return; return;