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path: root/drivers/cyw43/cywbt.c
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Diffstat (limited to 'drivers/cyw43/cywbt.c')
-rw-r--r--drivers/cyw43/cywbt.c100
1 files changed, 76 insertions, 24 deletions
diff --git a/drivers/cyw43/cywbt.c b/drivers/cyw43/cywbt.c
index fae661608..79318f448 100644
--- a/drivers/cyw43/cywbt.c
+++ b/drivers/cyw43/cywbt.c
@@ -3,7 +3,7 @@
*
* The MIT License (MIT)
*
- * Copyright (c) 2019 Damien P. George
+ * Copyright (c) 2019-2020 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@@ -31,8 +31,7 @@
#include "py/mphal.h"
#include "pin_static_af.h"
#include "uart.h"
-#include "cywbt.h"
-#include "nimble/hci_uart.h"
+#include "extmod/modbluetooth_hci.h"
#if MICROPY_PY_NETWORK_CYW43
@@ -42,7 +41,7 @@ extern const char fw_4343WA1_7_45_98_50_start;
/******************************************************************************/
// CYW BT HCI low-level driver
-static void cywbt_wait_cts_low(void) {
+STATIC void cywbt_wait_cts_low(void) {
mp_hal_pin_config(pyb_pin_BT_CTS, MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_UP, 0);
for (int i = 0; i < 200; ++i) {
if (mp_hal_pin_read(pyb_pin_BT_CTS) == 0) {
@@ -53,13 +52,13 @@ static void cywbt_wait_cts_low(void) {
mp_hal_pin_config_alt_static(pyb_pin_BT_CTS, MP_HAL_PIN_MODE_ALT, MP_HAL_PIN_PULL_UP, STATIC_AF_USART6_CTS);
}
-static int cywbt_hci_cmd_raw(size_t len, uint8_t *buf) {
- uart_tx_strn(&bt_hci_uart_obj, (void*)buf, len);
+STATIC int cywbt_hci_cmd_raw(size_t len, uint8_t *buf) {
+ uart_tx_strn(&mp_bluetooth_hci_uart_obj, (void*)buf, len);
for (int i = 0; i < 6; ++i) {
- while (!uart_rx_any(&bt_hci_uart_obj)) {
+ while (!uart_rx_any(&mp_bluetooth_hci_uart_obj)) {
MICROPY_EVENT_POLL_HOOK
}
- buf[i] = uart_rx_char(&bt_hci_uart_obj);
+ buf[i] = uart_rx_char(&mp_bluetooth_hci_uart_obj);
}
// expect a comand complete event (event 0x0e)
@@ -76,17 +75,17 @@ static int cywbt_hci_cmd_raw(size_t len, uint8_t *buf) {
int sz = buf[2] - 3;
for (int i = 0; i < sz; ++i) {
- while (!uart_rx_any(&bt_hci_uart_obj)) {
+ while (!uart_rx_any(&mp_bluetooth_hci_uart_obj)) {
MICROPY_EVENT_POLL_HOOK
}
- buf[i] = uart_rx_char(&bt_hci_uart_obj);
+ buf[i] = uart_rx_char(&mp_bluetooth_hci_uart_obj);
}
return 0;
}
-static int cywbt_hci_cmd(int ogf, int ocf, size_t param_len, const uint8_t *param_buf) {
- uint8_t *buf = bt_hci_cmd_buf;
+STATIC int cywbt_hci_cmd(int ogf, int ocf, size_t param_len, const uint8_t *param_buf) {
+ uint8_t *buf = mp_bluetooth_hci_cmd_buf;
buf[0] = 0x01;
buf[1] = ocf;
buf[2] = ogf << 2 | ocf >> 8;
@@ -97,19 +96,19 @@ static int cywbt_hci_cmd(int ogf, int ocf, size_t param_len, const uint8_t *para
return cywbt_hci_cmd_raw(4 + param_len, buf);
}
-static void put_le16(uint8_t *buf, uint16_t val) {
+STATIC void put_le16(uint8_t *buf, uint16_t val) {
buf[0] = val;
buf[1] = val >> 8;
}
-static void put_le32(uint8_t *buf, uint32_t val) {
+STATIC void put_le32(uint8_t *buf, uint32_t val) {
buf[0] = val;
buf[1] = val >> 8;
buf[2] = val >> 16;
buf[3] = val >> 24;
}
-static int cywbt_set_baudrate(uint32_t baudrate) {
+STATIC int cywbt_set_baudrate(uint32_t baudrate) {
uint8_t buf[6];
put_le16(buf, 0);
put_le32(buf + 2, baudrate);
@@ -117,12 +116,12 @@ static int cywbt_set_baudrate(uint32_t baudrate) {
}
// download firmware
-static int cywbt_download_firmware(const uint8_t *firmware) {
+STATIC int cywbt_download_firmware(const uint8_t *firmware) {
cywbt_hci_cmd(0x3f, 0x2e, 0, NULL);
bool last_packet = false;
while (!last_packet) {
- uint8_t *buf = bt_hci_cmd_buf;
+ uint8_t *buf = mp_bluetooth_hci_cmd_buf;
memcpy(buf + 1, firmware, 3);
firmware += 3;
last_packet = buf[1] == 0x4e;
@@ -149,15 +148,15 @@ static int cywbt_download_firmware(const uint8_t *firmware) {
cywbt_wait_cts_low();
mp_hal_pin_config(pyb_pin_WL_GPIO_1, MP_HAL_PIN_MODE_INPUT, MP_HAL_PIN_PULL_DOWN, 0); // Select chip antenna (could also select external)
- nimble_hci_uart_set_baudrate(115200);
+ mp_bluetooth_hci_uart_set_baudrate(115200);
cywbt_set_baudrate(3000000);
- nimble_hci_uart_set_baudrate(3000000);
+ mp_bluetooth_hci_uart_set_baudrate(3000000);
return 0;
}
-int cywbt_init(void) {
- // This is called from Nimble via hal_uart_config which will have already initialized the UART.
+int mp_bluetooth_hci_controller_init(void) {
+ // This is called immediately after the UART is initialised during stack initialisation.
mp_hal_pin_output(pyb_pin_BT_REG_ON);
mp_hal_pin_low(pyb_pin_BT_REG_ON);
@@ -172,11 +171,11 @@ int cywbt_init(void) {
return 0;
}
-int cywbt_activate(void) {
+int mp_bluetooth_hci_controller_activate(void) {
uint8_t buf[256];
mp_hal_pin_low(pyb_pin_BT_REG_ON);
- nimble_hci_uart_set_baudrate(115200);
+ mp_bluetooth_hci_uart_set_baudrate(115200);
mp_hal_delay_ms(100);
mp_hal_pin_high(pyb_pin_BT_REG_ON);
cywbt_wait_cts_low();
@@ -186,7 +185,7 @@ int cywbt_activate(void) {
// Change baudrate
cywbt_set_baudrate(3000000);
- nimble_hci_uart_set_baudrate(3000000);
+ mp_bluetooth_hci_uart_set_baudrate(3000000);
cywbt_download_firmware((const uint8_t*)CYWBT_FW_ADDR);
@@ -220,4 +219,57 @@ int cywbt_activate(void) {
return 0;
}
+int mp_bluetooth_hci_controller_deactivate(void) {
+ mp_hal_pin_low(pyb_pin_BT_REG_ON);
+
+ return 0;
+}
+
+#ifdef pyb_pin_BT_DEV_WAKE
+STATIC uint32_t bt_sleep_ticks;
+#endif
+
+int mp_bluetooth_hci_controller_sleep_maybe(void) {
+ #ifdef pyb_pin_BT_DEV_WAKE
+ if (mp_hal_pin_read(pyb_pin_BT_DEV_WAKE) == 0) {
+ if (mp_hal_ticks_ms() - bt_sleep_ticks > 500) {
+ mp_hal_pin_high(pyb_pin_BT_DEV_WAKE); // let sleep
+ }
+ }
+ #endif
+ return 0;
+}
+
+bool mp_bluetooth_hci_controller_woken(void) {
+ #ifdef pyb_pin_BT_HOST_WAKE
+ bool host_wake = mp_hal_pin_read(pyb_pin_BT_HOST_WAKE);
+ /*
+ // this is just for info/tracing purposes
+ static bool last_host_wake = false;
+ if (host_wake != last_host_wake) {
+ printf("HOST_WAKE change %d -> %d\n", last_host_wake, host_wake);
+ last_host_wake = host_wake;
+ }
+ */
+ return host_wake;
+ #else
+ return true;
+ #endif
+}
+
+int mp_bluetooth_hci_controller_wakeup(void) {
+ #ifdef pyb_pin_BT_DEV_WAKE
+ bt_sleep_ticks = mp_hal_ticks_ms();
+
+ if (mp_hal_pin_read(pyb_pin_BT_DEV_WAKE) == 1) {
+ mp_hal_pin_low(pyb_pin_BT_DEV_WAKE); // wake up
+ // Use delay_us rather than delay_ms to prevent running the scheduler (which
+ // might result in more BLE operations).
+ mp_hal_delay_us(5000); // can't go lower than this
+ }
+ #endif
+
+ return 0;
+}
+
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-31 10:58:46 +0000