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hci_transport_h4_ehcill_dma: use HCI_OUTGOING_PRE_BUFFER_SIZE

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This commit is contained in:
Matthias Ringwald 2015-12-18 20:15:22 +01:00
parent 12da76d312
commit 8258669bad
1 changed files with 17 additions and 20 deletions
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37
src/hci_transport_h4_ehcill_dma.c
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@ -57,9 +57,10 @@
#include <btstack/run_loop.h>
#include <btstack/hal_uart_dma.h>
// #include <libopencm3/stm32/gpio.h>
// #define GPIO_DEBUG_0 GPIO1
// #define GPIO_DEBUG_1 GPIO2
// assert pre-buffer for packet type is available
#if !defined(HCI_OUTGOING_PRE_BUFFER_SIZE) || (HCI_OUTGOING_PRE_BUFFER_SIZE == 0)
#error HCI_OUTGOING_PRE_BUFFER_SIZE not defined. Please update hci.h
#endif
// #define LOG_EHCILL
@ -81,7 +82,6 @@ typedef enum {
typedef enum {
TX_IDLE = 1,
TX_W4_WAKEUP, // eHCILL only
TX_W4_HEADER_SENT,
TX_W4_PACKET_SENT,
TX_W2_EHCILL_SEND,
TX_W4_EHCILL_SENT,
@ -137,9 +137,8 @@ static void (*packet_handler)(uint8_t packet_type, uint8_t *packet, uint16_t si
// H4: tx state
static volatile TX_STATE tx_state; // updated from block_sent callback
static volatile int tx_send_packet_sent; // updated from block_sent callback
static uint8_t tx_packet_type; // 0 == no outgoing packet
static uint8_t * tx_data;
static uint16_t tx_len;
static uint16_t tx_len; // 0 == no outgoing packet
// work around for eHCILL problem
static timer_source_t ehcill_sleep_ack_timer;
@ -203,7 +202,7 @@ static int h4_open(void *transport_config){
// init state machines
h4_rx_init_sm();
tx_state = TX_IDLE;
tx_packet_type = 0;
tx_len = 0;
return 0;
}
@ -302,7 +301,7 @@ static int h4_can_send_packet_now(uint8_t packet_type){
}
static int h4_outgoing_packet_ready(void){
return tx_packet_type != 0;
return tx_len != 0;
}
static void ehcill_sleep_ack_timer_handler(timer_source_t * timer){
@ -344,14 +343,9 @@ static void echill_send_wakeup_ind(void){
static void h4_block_sent(void){
int command;
switch (tx_state){
case TX_W4_HEADER_SENT:
tx_state = TX_W4_PACKET_SENT;
// h4 packet type + actual packet
hal_uart_dma_send_block(tx_data, tx_len);
break;
case TX_W4_PACKET_SENT:
// packet fully sent, reset state
tx_packet_type = 0;
tx_len = 0;
// now, send pending ehcill command if neccessary
switch (ehcill_command_to_send){
case EHCILL_GO_TO_SLEEP_ACK:
@ -508,8 +502,8 @@ static void ehcill_handle(uint8_t action){
#ifdef LOG_EHCILL
log_info("EHCILL: WAKE_UP_IND or ACK");
#endif
tx_state = TX_W4_HEADER_SENT;
hal_uart_dma_send_block(&tx_packet_type, 1);
tx_state = TX_W4_PACKET_SENT;
hal_uart_dma_send_block(tx_data, tx_len);
ehcill_state = EHCILL_STATE_AWAKE;
break;
@ -526,7 +520,6 @@ static int ehcill_send_packet(uint8_t packet_type, uint8_t *packet, int size){
// check for ongoing write
switch (tx_state){
case TX_W4_WAKEUP:
case TX_W4_HEADER_SENT:
case TX_W4_PACKET_SENT:
// we should not arrive here, log state
log_error("h4_send_packet with tx_state = %u, ehcill_state %u, packet type %u, data %02x %02x %02x", tx_state, ehcill_state, packet_type, packet[0], packet[1], packet[2]);
@ -538,15 +531,19 @@ static int ehcill_send_packet(uint8_t packet_type, uint8_t *packet, int size){
break;
}
// store packet type before actual data and increase size
size++;
packet--;
*packet = packet_type;
// store request
tx_packet_type = packet_type;
tx_data = packet;
tx_len = size;
// if awake, just start sending
if (!ehcill_sleep_mode_active()){
tx_state = TX_W4_HEADER_SENT;
hal_uart_dma_send_block(&tx_packet_type, 1);
tx_state = TX_W4_PACKET_SENT;
hal_uart_dma_send_block(tx_data, tx_len);
return 0;
}