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Merge pull request #14988 from npal-cy/pr/swintegration-501 

CYW43XXX Cordio HCI driver: update BT power up sequences to remove redundant delay (500ms) during HCIDrive initialization
pull/14994/head
Martin Kojtal 2021-08-17 12:20:17 +01:00 committed by GitHub
parent 47630e5268 b245445ecb
commit 09eee5881e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 81 additions and 75 deletions
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19
connectivity/drivers/ble/FEATURE_BLE/COMPONENT_CYW43XXX/CyH4TransportDriver.cpp
View File

@ -29,6 +29,17 @@
#include "rtos/ThisThread.h"
#include <chrono>
// BT settling time after power on
#if !defined (CY_BT_POWER_ON_SETTLING_TIME)
#define CY_BT_POWER_ON_SETTLING_TIME (500ms)
#endif /* !defined (CY_BT_POWER_ON_SETTLING_TIME) */
// Power on reset time
#if !defined (CY_BT_POWER_ON_RESET_TIME)
#define CY_BT_POWER_ON_RESET_TIME (1ms)
#endif /* !defined (CY_BT_POWER_ON_RESET_TIME) */
namespace ble {
namespace vendor {
namespace cypress_ble {
@ -44,7 +55,7 @@ CyH4TransportDriver::CyH4TransportDriver(PinName tx, PinName rx, PinName cts, Pi
cts(cts), rts(rts),
bt_host_wake_name(bt_host_wake_name),
bt_device_wake_name(bt_device_wake_name),
bt_power(bt_power_name, PIN_OUTPUT, PullNone, 0),
bt_power(bt_power_name, PIN_OUTPUT, PullUp, 0),
bt_host_wake(bt_host_wake_name, PIN_INPUT, PullNone, 0),
bt_device_wake(bt_device_wake_name, PIN_OUTPUT, PullNone, 1),
host_wake_irq_event(host_wake_irq),
@ -153,8 +164,9 @@ void CyH4TransportDriver::initialize()
bt_host_wake_active = true;
sleep_manager_lock_deep_sleep();
// Keep the bt_power line in the low level to ensure that the device resets.
bt_power = 0;
rtos::ThisThread::sleep_for(1ms);
rtos::ThisThread::sleep_for(CY_BT_POWER_ON_RESET_TIME);
#if defined(CYW43XXX_UNBUFFERED_UART)
uart.baud(DEF_BT_BAUD_RATE);
@ -186,7 +198,9 @@ void CyH4TransportDriver::initialize()
cyhal_uart_enable_event(&uart, CYHAL_UART_IRQ_RX_NOT_EMPTY, CYHAL_ISR_PRIORITY_DEFAULT, true);
#endif
// Power up BT
bt_power = 1;
rtos::ThisThread::sleep_for(CY_BT_POWER_ON_SETTLING_TIME);
#if (defined(MBED_TICKLESS) && DEVICE_SLEEP && DEVICE_LPTICKER)
if (bt_host_wake_name != NC) {
@ -229,6 +243,7 @@ void CyH4TransportDriver::terminate()
deassert_bt_dev_wake();
// Power down BT
bt_power = 0; //BT_POWER is an output, should not be freed only set inactive
#if defined(CYW43XXX_UNBUFFERED_UART)

15
connectivity/drivers/ble/FEATURE_BLE/COMPONENT_CYW43XXX/HCIDriver.cpp
View File

@ -75,13 +75,10 @@ class HCIDriver : public CordioHCIDriver {
public:
HCIDriver(
ble::vendor::cypress_ble::CyH4TransportDriver& transport_driver,
PinName bt_power_name,
bool ps_enabled,
uint8_t host_wake_irq,
uint8_t dev_wake_irq
) : CordioHCIDriver(transport_driver),
bt_power_name(bt_power_name),
bt_power(bt_power_name, PIN_OUTPUT, PullUp, 0),
is_powersave_enabled(ps_enabled),
host_wake_irq(host_wake_irq),
dev_wake_irq(dev_wake_irq),
@ -101,9 +98,6 @@ public:
virtual void do_initialize()
{
rtos::ThisThread::sleep_for(500ms);
bt_power = 1;
rtos::ThisThread::sleep_for(500ms);
}
virtual void do_terminate() { }
@ -436,12 +430,12 @@ private:
if (is_powersave_on()) {
pBuf[HCI_CMD_HDR_LEN + 3] = dev_wake_irq; // BT WAKE
} else {
pBuf[HCI_CMD_HDR_LEN + 3] = 0x00; // BT WAKE
pBuf[HCI_CMD_HDR_LEN + 3] = 0x00; // no BT WAKE
}
if (is_powersave_on()) {
pBuf[HCI_CMD_HDR_LEN + 4] = host_wake_irq; // HOST WAKE
} else {
pBuf[HCI_CMD_HDR_LEN + 4] = 0x00; // HOST WAKE
pBuf[HCI_CMD_HDR_LEN + 4] = 0x00; // no HOST WAKE
}
pBuf[HCI_CMD_HDR_LEN + 5] = 0x00; // Sleep during SCO
pBuf[HCI_CMD_HDR_LEN + 6] = 0x00; // Combining sleep mode and SCM
@ -522,9 +516,6 @@ private:
return (is_powersave_enabled);
}
PinName bt_power_name;
mbed::DigitalInOut bt_power;
bool is_powersave_enabled;
uint8_t host_wake_irq;
uint8_t dev_wake_irq;
@ -546,9 +537,9 @@ ble::CordioHCIDriver& ble_cordio_get_hci_driver()
{
static ble::vendor::cypress_ble::CyH4TransportDriver& transport_driver =
ble_cordio_get_h4_transport_driver();
static ble::vendor::cypress::HCIDriver hci_driver(
transport_driver,
/* bt_power */ CYBSP_BT_POWER,
transport_driver.get_enabled_powersave(),
transport_driver.get_host_wake_irq_event(),
transport_driver.get_dev_wake_irq_event()