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hci_transport_h4_dma: use HCI_OUTGOING_PRE_BUFFER_SIZE

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This commit is contained in:
Matthias Ringwald 2015-12-18 20:08:34 +01:00
parent 0a5fa5b3cb
commit 12da76d312
1 changed files with 12 additions and 12 deletions
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24
src/hci_transport_h4_dma.c
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@ -53,6 +53,11 @@
#include <btstack/hal_uart_dma.h>
// 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
typedef enum {
H4_W4_PACKET_TYPE = 1,
H4_W4_EVENT_HEADER,
@ -63,7 +68,6 @@ typedef enum {
typedef enum {
TX_IDLE = 1,
TX_W4_HEADER_SENT,
TX_W4_PACKET_SENT,
TX_DONE
} TX_STATE;
@ -97,9 +101,6 @@ static uint8_t * hci_packet = &hci_packet_prefixed[HCI_INCOMING_PRE_BUFFER_SIZE]
// tx state
static TX_STATE tx_state;
static uint8_t tx_packet_type;
static uint8_t *tx_data;
static uint16_t tx_len;
// static hci_transport_h4_t * hci_transport_h4 = NULL;
static void (*packet_handler)(uint8_t packet_type, uint8_t *packet, uint16_t size) = dummy_handler;
@ -220,11 +221,6 @@ static void h4_block_received(void){
static void h4_block_sent(void){
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:
tx_state = TX_DONE;
// trigger run loop
@ -266,12 +262,16 @@ static int h4_send_packet(uint8_t packet_type, uint8_t *packet, int size){
return -1;
}
tx_packet_type = packet_type;
// store packet type before actual data and increase size
size++;
packet--;
*packet = packet_type;
tx_data = packet;
tx_len = size;
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;
}