mirror of
https://github.com/bluekitchen/btstack.git
synced 2024-12-26 18:17:55 +00:00
217 lines
7.8 KiB
C
217 lines
7.8 KiB
C
/*
|
|
* Copyright (C) 2016 BlueKitchen GmbH
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the copyright holders nor the names of
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
* 4. Any redistribution, use, or modification is done solely for
|
|
* personal benefit and not for any commercial purpose or for
|
|
* monetary gain.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
|
|
* GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* Please inquire about commercial licensing options at
|
|
* contact@bluekitchen-gmbh.com
|
|
*
|
|
*/
|
|
|
|
#define BTSTACK_FILE__ "btstack_uart_block_embedded.c"
|
|
|
|
/*
|
|
* btstack_uart_block_embedded.c
|
|
*
|
|
* Adapter to IRQ-driven hal_uart_dma.h with Embedded BTstack Run Loop
|
|
* Callbacks are executed on main thread via data source and btstack_run_loop_poll_data_sources_from_irq
|
|
*/
|
|
|
|
#include "btstack_bool.h"
|
|
#include "btstack_debug.h"
|
|
#include "btstack_uart_block.h"
|
|
#include "btstack_run_loop.h"
|
|
#include "hal_uart_dma.h"
|
|
|
|
// NULL
|
|
#include <stddef.h>
|
|
|
|
// uart config
|
|
static const btstack_uart_config_t * btstack_uart_block_configuration;
|
|
|
|
// data source for integration with BTstack Runloop
|
|
static btstack_data_source_t transport_data_source;
|
|
|
|
static bool send_complete;
|
|
static bool receive_complete;
|
|
static bool wakeup_event;
|
|
|
|
// callbacks
|
|
static void (*block_sent)(void);
|
|
static void (*block_received)(void);
|
|
static void (*wakeup_handler)(void);
|
|
|
|
|
|
static void btstack_uart_block_received(void){
|
|
receive_complete = true;
|
|
btstack_run_loop_poll_data_sources_from_irq();
|
|
}
|
|
|
|
static void btstack_uart_block_sent(void){
|
|
send_complete = true;
|
|
btstack_run_loop_poll_data_sources_from_irq();
|
|
}
|
|
|
|
static void btstack_uart_cts_pulse(void){
|
|
wakeup_event = true;
|
|
btstack_run_loop_poll_data_sources_from_irq();
|
|
}
|
|
|
|
static int btstack_uart_embedded_init(const btstack_uart_config_t * config){
|
|
btstack_uart_block_configuration = config;
|
|
hal_uart_dma_set_block_received(&btstack_uart_block_received);
|
|
hal_uart_dma_set_block_sent(&btstack_uart_block_sent);
|
|
return 0;
|
|
}
|
|
|
|
static void btstack_uart_embedded_process(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type) {
|
|
UNUSED(ds);
|
|
switch (callback_type){
|
|
case DATA_SOURCE_CALLBACK_POLL:
|
|
if (send_complete){
|
|
send_complete = false;
|
|
if (block_sent != NULL){
|
|
block_sent();
|
|
}
|
|
}
|
|
if (receive_complete){
|
|
receive_complete = false;
|
|
if (block_received != NULL){
|
|
block_received();
|
|
}
|
|
}
|
|
if (wakeup_event){
|
|
wakeup_event = false;
|
|
if (wakeup_handler != NULL){
|
|
wakeup_handler();
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int btstack_uart_embedded_open(void){
|
|
hal_uart_dma_init();
|
|
hal_uart_dma_set_baud(btstack_uart_block_configuration->baudrate);
|
|
|
|
// set up polling data_source
|
|
btstack_run_loop_set_data_source_handler(&transport_data_source, &btstack_uart_embedded_process);
|
|
btstack_run_loop_enable_data_source_callbacks(&transport_data_source, DATA_SOURCE_CALLBACK_POLL);
|
|
btstack_run_loop_add_data_source(&transport_data_source);
|
|
return 0;
|
|
}
|
|
|
|
static int btstack_uart_embedded_close(void){
|
|
|
|
// remove data source
|
|
btstack_run_loop_disable_data_source_callbacks(&transport_data_source, DATA_SOURCE_CALLBACK_POLL);
|
|
btstack_run_loop_remove_data_source(&transport_data_source);
|
|
|
|
// close device
|
|
// ...
|
|
return 0;
|
|
}
|
|
|
|
static void btstack_uart_embedded_set_block_received( void (*block_handler)(void)){
|
|
block_received = block_handler;
|
|
}
|
|
|
|
static void btstack_uart_embedded_set_block_sent( void (*block_handler)(void)){
|
|
block_sent = block_handler;
|
|
}
|
|
|
|
static void btstack_uart_embedded_set_wakeup_handler( void (*the_wakeup_handler)(void)){
|
|
wakeup_handler = the_wakeup_handler;
|
|
}
|
|
|
|
static int btstack_uart_embedded_set_parity(int parity){
|
|
UNUSED(parity);
|
|
return 0;
|
|
}
|
|
|
|
static void btstack_uart_embedded_send_block(const uint8_t *data, uint16_t size){
|
|
hal_uart_dma_send_block(data, size);
|
|
}
|
|
|
|
static void btstack_uart_embedded_receive_block(uint8_t *buffer, uint16_t len){
|
|
hal_uart_dma_receive_block(buffer, len);
|
|
}
|
|
|
|
static int btstack_uart_embedded_get_supported_sleep_modes(void){
|
|
#ifdef HAVE_HAL_UART_DMA_SLEEP_MODES
|
|
return hal_uart_dma_get_supported_sleep_modes();
|
|
#else
|
|
return BTSTACK_UART_SLEEP_MASK_RTS_HIGH_WAKE_ON_CTS_PULSE;
|
|
#endif
|
|
}
|
|
|
|
static void btstack_uart_embedded_set_sleep(btstack_uart_sleep_mode_t sleep_mode){
|
|
log_info("set sleep %u", sleep_mode);
|
|
if (sleep_mode == BTSTACK_UART_SLEEP_RTS_HIGH_WAKE_ON_CTS_PULSE){
|
|
hal_uart_dma_set_csr_irq_handler(&btstack_uart_cts_pulse);
|
|
} else {
|
|
hal_uart_dma_set_csr_irq_handler(NULL);
|
|
}
|
|
|
|
#ifdef HAVE_HAL_UART_DMA_SLEEP_MODES
|
|
hal_uart_dma_set_sleep_mode(sleep_mode);
|
|
#else
|
|
hal_uart_dma_set_sleep(sleep_mode != BTSTACK_UART_SLEEP_OFF);
|
|
#endif
|
|
log_info("done");
|
|
}
|
|
|
|
static const btstack_uart_block_t btstack_uart_embedded = {
|
|
/* int (*init)(hci_transport_config_uart_t * config); */ &btstack_uart_embedded_init,
|
|
/* int (*open)(void); */ &btstack_uart_embedded_open,
|
|
/* int (*close)(void); */ &btstack_uart_embedded_close,
|
|
/* void (*set_block_received)(void (*handler)(void)); */ &btstack_uart_embedded_set_block_received,
|
|
/* void (*set_block_sent)(void (*handler)(void)); */ &btstack_uart_embedded_set_block_sent,
|
|
/* int (*set_baudrate)(uint32_t baudrate); */ &hal_uart_dma_set_baud,
|
|
/* int (*set_parity)(int parity); */ &btstack_uart_embedded_set_parity,
|
|
#ifdef HAVE_UART_DMA_SET_FLOWCONTROL
|
|
/* int (*set_flowcontrol)(int flowcontrol); */ &hal_uart_dma_set_flowcontrol,
|
|
#else
|
|
/* int (*set_flowcontrol)(int flowcontrol); */ NULL,
|
|
#endif
|
|
/* void (*receive_block)(uint8_t *buffer, uint16_t len); */ &btstack_uart_embedded_receive_block,
|
|
/* void (*send_block)(const uint8_t *buffer, uint16_t length); */ &btstack_uart_embedded_send_block,
|
|
/* int (*get_supported_sleep_modes); */ &btstack_uart_embedded_get_supported_sleep_modes,
|
|
/* void (*set_sleep)(btstack_uart_sleep_mode_t sleep_mode); */ &btstack_uart_embedded_set_sleep,
|
|
/* void (*set_wakeup_handler)(void (*handler)(void)); */ &btstack_uart_embedded_set_wakeup_handler,
|
|
NULL, NULL, NULL, NULL,
|
|
};
|
|
|
|
const btstack_uart_block_t * btstack_uart_block_embedded_instance(void){
|
|
return &btstack_uart_embedded;
|
|
}
|