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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
2 parents 47630e5 + b245445 commit 09eee58

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3 files changed

+81
-75
lines changed

3 files changed

+81
-75
lines changed

‎connectivity/drivers/ble/FEATURE_BLE/COMPONENT_CYW43XXX/CyH4TransportDriver.cpp‎

Lines changed: 17 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -29,6 +29,17 @@
2929
#include "rtos/ThisThread.h"
3030
#include <chrono>
3131

32+
// BT settling time after power on
33+
#if !defined (CY_BT_POWER_ON_SETTLING_TIME)
34+
#define CY_BT_POWER_ON_SETTLING_TIME (500ms)
35+
#endif /* !defined (CY_BT_POWER_ON_SETTLING_TIME) */
36+
37+
// Power on reset time
38+
#if !defined (CY_BT_POWER_ON_RESET_TIME)
39+
#define CY_BT_POWER_ON_RESET_TIME (1ms)
40+
#endif /* !defined (CY_BT_POWER_ON_RESET_TIME) */
41+
42+
3243
namespace ble {
3344
namespace vendor {
3445
namespace cypress_ble {
@@ -44,7 +55,7 @@ CyH4TransportDriver::CyH4TransportDriver(PinName tx, PinName rx, PinName cts, Pi
4455
cts(cts), rts(rts),
4556
bt_host_wake_name(bt_host_wake_name),
4657
bt_device_wake_name(bt_device_wake_name),
47-
bt_power(bt_power_name, PIN_OUTPUT, PullNone, 0),
58+
bt_power(bt_power_name, PIN_OUTPUT, PullUp, 0),
4859
bt_host_wake(bt_host_wake_name, PIN_INPUT, PullNone, 0),
4960
bt_device_wake(bt_device_wake_name, PIN_OUTPUT, PullNone, 1),
5061
host_wake_irq_event(host_wake_irq),
@@ -153,8 +164,9 @@ void CyH4TransportDriver::initialize()
153164
bt_host_wake_active = true;
154165
sleep_manager_lock_deep_sleep();
155166

167+
// Keep the bt_power line in the low level to ensure that the device resets.
156168
bt_power = 0;
157-
rtos::ThisThread::sleep_for(1ms);
169+
rtos::ThisThread::sleep_for(CY_BT_POWER_ON_RESET_TIME);
158170

159171
#if defined(CYW43XXX_UNBUFFERED_UART)
160172
uart.baud(DEF_BT_BAUD_RATE);
@@ -186,7 +198,9 @@ void CyH4TransportDriver::initialize()
186198
cyhal_uart_enable_event(&uart, CYHAL_UART_IRQ_RX_NOT_EMPTY, CYHAL_ISR_PRIORITY_DEFAULT, true);
187199
#endif
188200

201+
// Power up BT
189202
bt_power = 1;
203+
rtos::ThisThread::sleep_for(CY_BT_POWER_ON_SETTLING_TIME);
190204

191205
#if (defined(MBED_TICKLESS) && DEVICE_SLEEP && DEVICE_LPTICKER)
192206
if (bt_host_wake_name != NC) {
@@ -229,6 +243,7 @@ void CyH4TransportDriver::terminate()
229243

230244
deassert_bt_dev_wake();
231245

246+
// Power down BT
232247
bt_power = 0; //BT_POWER is an output, should not be freed only set inactive
233248

234249
#if defined(CYW43XXX_UNBUFFERED_UART)

‎connectivity/drivers/ble/FEATURE_BLE/COMPONENT_CYW43XXX/CyH4TransportDriver.h‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -46,9 +46,9 @@ class CyH4TransportDriver : public CordioHCITransportDriver {
4646
* Initialize the transport driver.
4747
*
4848
*/
49-
CyH4TransportDriver(PinName tx, PinName rx, PinName cts, PinName rts, PinName bt_power_name, int baud, PinName bt_host_wake_name, PinName bt_device_wake_name,
50-
uint8_t host_wake_irq = 0, uint8_t dev_wake_irq = 0);
51-
CyH4TransportDriver(PinName tx, PinName rx, PinName cts, PinName rts, PinName bt_power_name, int baud);
49+
CyH4TransportDriver(PinName tx, PinName rx, PinName cts, PinName rts, PinName bt_power_name, int baud, PinName bt_host_wake_name, PinName bt_device_wake_name,
50+
uint8_t host_wake_irq = 0, uint8_t dev_wake_irq = 0);
51+
CyH4TransportDriver(PinName tx, PinName rx, PinName cts, PinName rts, PinName bt_power_name, int baud);
5252

5353
/**
5454
* Destructor

‎connectivity/drivers/ble/FEATURE_BLE/COMPONENT_CYW43XXX/HCIDriver.cpp‎

Lines changed: 61 additions & 70 deletions
Original file line numberDiff line numberDiff line change
@@ -75,16 +75,13 @@ class HCIDriver : public CordioHCIDriver {
7575
public:
7676
HCIDriver(
7777
ble::vendor::cypress_ble::CyH4TransportDriver& transport_driver,
78-
PinName bt_power_name,
79-
bool ps_enabled,
80-
uint8_t host_wake_irq,
81-
uint8_t dev_wake_irq
78+
bool ps_enabled,
79+
uint8_t host_wake_irq,
80+
uint8_t dev_wake_irq
8281
) : CordioHCIDriver(transport_driver),
83-
bt_power_name(bt_power_name),
84-
bt_power(bt_power_name, PIN_OUTPUT, PullUp, 0),
85-
is_powersave_enabled(ps_enabled),
86-
host_wake_irq(host_wake_irq),
87-
dev_wake_irq(dev_wake_irq),
82+
is_powersave_enabled(ps_enabled),
83+
host_wake_irq(host_wake_irq),
84+
dev_wake_irq(dev_wake_irq),
8885
service_pack_index(0),
8986
service_pack_ptr(0),
9087
service_pack_length(0),
@@ -101,9 +98,6 @@ class HCIDriver : public CordioHCIDriver {
10198

10299
virtual void do_initialize()
103100
{
104-
rtos::ThisThread::sleep_for(500ms);
105-
bt_power = 1;
106-
rtos::ThisThread::sleep_for(500ms);
107101
}
108102

109103
virtual void do_terminate() { }
@@ -419,68 +413,68 @@ class HCIDriver : public CordioHCIDriver {
419413

420414
void set_sleep_mode()
421415
{
422-
uint8_t *pBuf;
423-
if ((pBuf = hciCmdAlloc(HCI_VS_CMD_SET_SLEEP_MODE, 12)) != NULL)
424-
{
425-
if (is_powersave_on()) {
426-
pBuf[HCI_CMD_HDR_LEN] = 0x01; // sleep
427-
} else {
428-
pBuf[HCI_CMD_HDR_LEN] = 0x00; // no sleep
429-
}
430-
pBuf[HCI_CMD_HDR_LEN + 1] = 0x00; // no idle threshold host (N/A)
431-
if (is_powersave_on()) {
432-
pBuf[HCI_CMD_HDR_LEN + 2] = 0x05; // no idle threshold HC (N/A)
433-
} else {
434-
pBuf[HCI_CMD_HDR_LEN + 2] = 0x00; // no idle threshold HC (N/A)
435-
}
436-
if (is_powersave_on()) {
437-
pBuf[HCI_CMD_HDR_LEN + 3] = dev_wake_irq; // BT WAKE
438-
} else {
439-
pBuf[HCI_CMD_HDR_LEN + 3] = 0x00; // BT WAKE
440-
}
441-
if (is_powersave_on()) {
442-
pBuf[HCI_CMD_HDR_LEN + 4] = host_wake_irq; // HOST WAKE
443-
} else {
444-
pBuf[HCI_CMD_HDR_LEN + 4] = 0x00; // HOST WAKE
445-
}
446-
pBuf[HCI_CMD_HDR_LEN + 5] = 0x00; // Sleep during SCO
447-
pBuf[HCI_CMD_HDR_LEN + 6] = 0x00; // Combining sleep mode and SCM
448-
pBuf[HCI_CMD_HDR_LEN + 7] = 0x00; // Tristate TX
449-
pBuf[HCI_CMD_HDR_LEN + 8] = 0x00; // Active connection handling on suspend
450-
pBuf[HCI_CMD_HDR_LEN + 9] = 0x00; // resume timeout
451-
pBuf[HCI_CMD_HDR_LEN + 10] = 0x00; // break to host
452-
pBuf[HCI_CMD_HDR_LEN + 11] = 0x00; // Pulsed host wake
453-
hciCmdSend(pBuf);
416+
uint8_t *pBuf;
417+
if ((pBuf = hciCmdAlloc(HCI_VS_CMD_SET_SLEEP_MODE, 12)) != NULL)
418+
{
419+
if (is_powersave_on()) {
420+
pBuf[HCI_CMD_HDR_LEN] = 0x01; // sleep
421+
} else {
422+
pBuf[HCI_CMD_HDR_LEN] = 0x00; // no sleep
423+
}
424+
pBuf[HCI_CMD_HDR_LEN + 1] = 0x00; // no idle threshold host (N/A)
425+
if (is_powersave_on()) {
426+
pBuf[HCI_CMD_HDR_LEN + 2] = 0x05; // no idle threshold HC (N/A)
427+
} else {
428+
pBuf[HCI_CMD_HDR_LEN + 2] = 0x00; // no idle threshold HC (N/A)
429+
}
430+
if (is_powersave_on()) {
431+
pBuf[HCI_CMD_HDR_LEN + 3] = dev_wake_irq; // BT WAKE
432+
} else {
433+
pBuf[HCI_CMD_HDR_LEN + 3] = 0x00; // no BT WAKE
434+
}
435+
if (is_powersave_on()) {
436+
pBuf[HCI_CMD_HDR_LEN + 4] = host_wake_irq; // HOST WAKE
437+
} else {
438+
pBuf[HCI_CMD_HDR_LEN + 4] = 0x00; // no HOST WAKE
454439
}
440+
pBuf[HCI_CMD_HDR_LEN + 5] = 0x00; // Sleep during SCO
441+
pBuf[HCI_CMD_HDR_LEN + 6] = 0x00; // Combining sleep mode and SCM
442+
pBuf[HCI_CMD_HDR_LEN + 7] = 0x00; // Tristate TX
443+
pBuf[HCI_CMD_HDR_LEN + 8] = 0x00; // Active connection handling on suspend
444+
pBuf[HCI_CMD_HDR_LEN + 9] = 0x00; // resume timeout
445+
pBuf[HCI_CMD_HDR_LEN + 10] = 0x00; // break to host
446+
pBuf[HCI_CMD_HDR_LEN + 11] = 0x00; // Pulsed host wake
447+
hciCmdSend(pBuf);
448+
}
455449
}
456450

457451
// 0x18, 0xFC, 0x06, 0x00, 0x00, 0xC0, 0xC6, 0x2D, 0x00, //update uart baudrate 3 mbp
458452
void HciUpdateUartBaudRate()
459453
{
460-
uint8_t *pBuf;
461-
if ((pBuf = hciCmdAlloc(HCI_VS_CMD_UPDATE_UART_BAUD_RATE, 6)) != NULL)
462-
{
463-
pBuf[HCI_CMD_HDR_LEN] = 0x00; // encoded_baud_rate
464-
pBuf[HCI_CMD_HDR_LEN + 1] = 0x00; // use_encoded_form
465-
pBuf[HCI_CMD_HDR_LEN + 2] = 0xC0; // explicit baud rate bit 0-7
466-
pBuf[HCI_CMD_HDR_LEN + 3] = 0xC6; // explicit baud rate bit 8-15
467-
pBuf[HCI_CMD_HDR_LEN + 4] = 0x2D; // explicit baud rate bit 16-23
468-
pBuf[HCI_CMD_HDR_LEN + 5] = 0x00; // explicit baud rate bit 24-31
469-
hciCmdSend(pBuf);
470-
}
454+
uint8_t *pBuf;
455+
if ((pBuf = hciCmdAlloc(HCI_VS_CMD_UPDATE_UART_BAUD_RATE, 6)) != NULL)
456+
{
457+
pBuf[HCI_CMD_HDR_LEN] = 0x00; // encoded_baud_rate
458+
pBuf[HCI_CMD_HDR_LEN + 1] = 0x00; // use_encoded_form
459+
pBuf[HCI_CMD_HDR_LEN + 2] = 0xC0; // explicit baud rate bit 0-7
460+
pBuf[HCI_CMD_HDR_LEN + 3] = 0xC6; // explicit baud rate bit 8-15
461+
pBuf[HCI_CMD_HDR_LEN + 4] = 0x2D; // explicit baud rate bit 16-23
462+
pBuf[HCI_CMD_HDR_LEN + 5] = 0x00; // explicit baud rate bit 24-31
463+
hciCmdSend(pBuf);
464+
}
471465
}
472466

473467
static const uint16_t HCI_OPCODE_WRITE_LE_HOST_SUPPORT = 0x0C6D;
474468

475469
void HciWriteLeHostSupport()
476470
{
477-
uint8_t *pBuf;
478-
if ((pBuf = hciCmdAlloc(HCI_OPCODE_WRITE_LE_HOST_SUPPORT, 2)) != NULL)
479-
{
480-
pBuf[HCI_CMD_HDR_LEN] = 0x01;
481-
pBuf[HCI_CMD_HDR_LEN + 1] = 0x00;
482-
hciCmdSend(pBuf);
483-
}
471+
uint8_t *pBuf;
472+
if ((pBuf = hciCmdAlloc(HCI_OPCODE_WRITE_LE_HOST_SUPPORT, 2)) != NULL)
473+
{
474+
pBuf[HCI_CMD_HDR_LEN] = 0x01;
475+
pBuf[HCI_CMD_HDR_LEN + 1] = 0x00;
476+
hciCmdSend(pBuf);
477+
}
484478
}
485479

486480
void hciCoreReadResolvingListSize(void)
@@ -503,7 +497,7 @@ class HCIDriver : public CordioHCIDriver {
503497

504498
void hciCoreReadMaxDataLen(void)
505499
{
506-
/* if LE Data Packet Length Extensions is supported by Controller and included */
500+
/* if LE Data Packet Length Extensions is supported by Controller and included */
507501
if ((hciCoreCb.leSupFeat & HCI_LE_SUP_FEAT_DATA_LEN_EXT) &&
508502
(hciLeSupFeatCfg & HCI_LE_SUP_FEAT_DATA_LEN_EXT))
509503
{
@@ -522,9 +516,6 @@ class HCIDriver : public CordioHCIDriver {
522516
return (is_powersave_enabled);
523517
}
524518

525-
PinName bt_power_name;
526-
mbed::DigitalInOut bt_power;
527-
528519
bool is_powersave_enabled;
529520
uint8_t host_wake_irq;
530521
uint8_t dev_wake_irq;
@@ -546,12 +537,12 @@ ble::CordioHCIDriver& ble_cordio_get_hci_driver()
546537
{
547538
static ble::vendor::cypress_ble::CyH4TransportDriver& transport_driver =
548539
ble_cordio_get_h4_transport_driver();
540+
549541
static ble::vendor::cypress::HCIDriver hci_driver(
550542
transport_driver,
551-
/* bt_power */ CYBSP_BT_POWER,
552-
transport_driver.get_enabled_powersave(),
553-
transport_driver.get_host_wake_irq_event(),
554-
transport_driver.get_dev_wake_irq_event()
543+
transport_driver.get_enabled_powersave(),
544+
transport_driver.get_host_wake_irq_event(),
545+
transport_driver.get_dev_wake_irq_event()
555546
);
556547
return hci_driver;
557548
}

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