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raspi: use warm boot if ENABLE_CONTROLLER_WARM_BOOT is defined

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This commit is contained in:
Matthias Ringwald 2019-11-04 22:23:45 +01:00
parent a06b9aecee
commit e6a3daa47c
3 changed files with 40 additions and 20 deletions
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2
doc/manual/docs/how_to.md
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@ -98,7 +98,7 @@ ENABLE_HCI_CONTROLLER_TO_HOST_FLOW_CONTROL | Enable HCI Controller to Host Flow
ENABLE_CC256X_BAUDRATE_CHANGE_FLOWCONTROL_BUG_WORKAROUND | Enable workaround for bug in CC256x Flow Control during baud rate change, see chipset docs.
ENABLE_CYPRESS_BAUDRATE_CHANGE_FLOWCONTROL_BUG_WORKAROUND | Enable workaround for bug in CYW2070x Flow Control during baud rate change, similar to CC256x.
ENABLE_TLV_FLASH_EXPLICIT_DELETE_FIELD | Enable use of explicit delete field in TLV Flash implemenation - required when flash value cannot be overwritten with zero
ENABLE_CONTROLLER_WARM_BOOT | Enable stack startup without power cycle (if supported/possible)
Notes:

3
port/raspi/btstack_config.h
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@ -26,6 +26,9 @@
#define ENABLE_SCO_OVER_HCI
#define ENABLE_SDP_DES_DUMP
// Warm Boot needed if connected via Wifi on Raspberry Pi 3A+ or 3B+
// #define ENABLE_CONTROLLER_WARM_BOOT
// BTstack configuration. buffers, sizes, ...
#define HCI_INCOMING_PRE_BUFFER_SIZE 14 // sizeof benep heade, avoid memcpy
#define HCI_ACL_PAYLOAD_SIZE (1691 + 4)

55
port/raspi/main.c
View File

@ -306,6 +306,7 @@ int main(int argc, const char * argv[]){
// set UART config based on raspi Bluetooth UART type
int bt_reg_en_pin = -1;
bool power_cycle = true;
switch (raspi_get_bluetooth_uart_type()){
case UART_INVALID:
fprintf(stderr, "can't verify HW uart, %s\n", strerror( errno ) );
@ -319,24 +320,37 @@ int main(int argc, const char * argv[]){
case UART_HARDWARE_NO_FLOW:
// Raspberry Pi 3 A
// Raspberry Pi 3 B
// power up with H5 and without power cycle untested/unsupported
bt_reg_en_pin = 128;
transport_config.baudrate_main = 921600;
transport_config.flowcontrol = 0;
break;
case UART_HARDWARE_FLOW:
// Raspberry Pi Zero W gpio 45
// Raspberry Pi Zero W gpio 45, 3 mbps does not work (investigation pending)
// Raspberry Pi 3A+ vgpio 129 but WLAN + BL
// Raspberry Pi 3B+ vgpio 129 but WLAN + BL
transport_config.baudrate_main = 3000000;
transport_config.flowcontrol = 1;
// 3 mbps does not work on Zero W (investigation pending)
if (raspi_get_model() == MODEL_ZERO_W){
transport_config.baudrate_main = 921600;
int model = raspi_get_model();
if (model == MODEL_ZERO_W){
bt_reg_en_pin = 45;
transport_config.baudrate_main = 921600;
} else {
bt_reg_en_pin = 129;
transport_config.baudrate_main = 3000000;
}
#ifdef ENABLE_CONTROLLER_WARM_BOOT
power_cycle = false;
#else
// warn about power cycle on devices with shared reg_en pins
if (model == MODEL_3APLUS || model == MODEL_3BPLUS){
printf("Wifi and Bluetooth share a single RESET line and BTstack needs to reset Bluetooth -> SSH over Wifi will fail\n");
printf("Please add ENABLE_CONTROLLER_WARM_BOOT to btstack_config.h to enable startup without RESET\n");
}
#endif
break;
}
printf("%s, %u, BT_REG_EN at GPIO %u\n", transport_config.flowcontrol ? "H4":"H5", transport_config.baudrate_main, bt_reg_en_pin);
printf("%s, %u, BT_REG_EN at GPIO %u, %s\n", transport_config.flowcontrol ? "H4":"H5", transport_config.baudrate_main, bt_reg_en_pin, power_cycle ? "Reset Controller" : "Warm Boot");
// get BCM chipset driver
const btstack_chipset_t * chipset = btstack_chipset_bcm_instance();
@ -379,24 +393,27 @@ int main(int argc, const char * argv[]){
main_argc = argc;
main_argv = argv;
if (transport_config.flowcontrol){
// re-use current terminal speed
raspi_get_terminal_params( &transport_config );
// with flowcontrol, we use h4 and are done
btstack_main(main_argc, main_argv);
} else {
// power cycle Bluetooth controller on older models without flowcontrol
printf("Power Cycle Controller\n");
// power cycle Bluetooth controller on older models without flowcontrol
if (power_cycle){
btstack_control_raspi_set_bt_reg_en_pin(bt_reg_en_pin);
btstack_control_t *control = btstack_control_raspi_get_instance();
control->init(NULL);
control->off();
usleep( 100000 );
control->on();
}
if (transport_config.flowcontrol){
// re-use current terminal speed (if there was no power cycle)
if (!power_cycle){
raspi_get_terminal_params( &transport_config );
}
// with flowcontrol, we use h4 and are done
btstack_main(main_argc, main_argv);
} else {
// assume BCM4343W used in Pi 3 A/B. Pi 3 A/B+ have a newer controller but support H4 with Flowcontrol
btstack_chipset_bcm_set_device_name("BCM43430A1");