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use mutex for cdc device fifo

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hathach 2018-11-02 18:40:47 +07:00
parent e9de56ad83
commit cb9bcce6a2
1 changed files with 17 additions and 10 deletions
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27
src/class/cdc/cdc_device.c
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@ -44,7 +44,6 @@
//--------------------------------------------------------------------+
// INCLUDE
//--------------------------------------------------------------------+
#include "common/tusb_common.h"
#include "cdc_device.h"
#include "device/usbd_pvt.h"
@ -72,13 +71,16 @@ typedef struct
uint8_t rx_ff_buf[CFG_TUD_CDC_RX_BUFSIZE];
uint8_t tx_ff_buf[CFG_TUD_CDC_TX_BUFSIZE];
osal_mutex_def_t rx_ff_mutex;
osal_mutex_def_t tx_ff_mutex;
// Endpoint Transfer buffer
CFG_TUSB_MEM_ALIGN uint8_t epout_buf[CFG_TUD_CDC_EPSIZE];
CFG_TUSB_MEM_ALIGN uint8_t epin_buf[CFG_TUD_CDC_EPSIZE];
}cdcd_interface_t;
#define ITF_BUS_RESET_SZ offsetof(cdcd_interface_t, wanted_char)
#define ITF_MEM_RESET_SIZE offsetof(cdcd_interface_t, wanted_char)
//--------------------------------------------------------------------+
// INTERNAL OBJECT & FUNCTION DECLARATION
@ -189,17 +191,22 @@ void cdcd_init(void)
for(uint8_t i=0; i<CFG_TUD_CDC; i++)
{
_cdcd_itf[i].wanted_char = -1;
cdcd_interface_t* ser = &_cdcd_itf[i];
ser->wanted_char = -1;
// default line coding is : stop bit = 1, parity = none, data bits = 8
_cdcd_itf[i].line_coding.bit_rate = 115200;
_cdcd_itf[i].line_coding.stop_bits = 0;
_cdcd_itf[i].line_coding.parity = 0;
_cdcd_itf[i].line_coding.data_bits = 8;
ser->line_coding.bit_rate = 115200;
ser->line_coding.stop_bits = 0;
ser->line_coding.parity = 0;
ser->line_coding.data_bits = 8;
// config fifo
tu_fifo_config(&_cdcd_itf[i].rx_ff, _cdcd_itf[i].rx_ff_buf, CFG_TUD_CDC_RX_BUFSIZE, 1, true);
tu_fifo_config(&_cdcd_itf[i].tx_ff, _cdcd_itf[i].tx_ff_buf, CFG_TUD_CDC_TX_BUFSIZE, 1, false);
tu_fifo_config(&ser->rx_ff, ser->rx_ff_buf, CFG_TUD_CDC_RX_BUFSIZE, 1, true);
tu_fifo_config_mutex(&ser->rx_ff, osal_mutex_create(&ser->rx_ff_mutex));
tu_fifo_config(&ser->tx_ff, ser->tx_ff_buf, CFG_TUD_CDC_TX_BUFSIZE, 1, false);
tu_fifo_config_mutex(&ser->tx_ff, osal_mutex_create(&ser->tx_ff_mutex));
}
}
@ -209,7 +216,7 @@ void cdcd_reset(uint8_t rhport)
for(uint8_t i=0; i<CFG_TUD_CDC; i++)
{
tu_memclr(&_cdcd_itf[i], ITF_BUS_RESET_SZ);
tu_memclr(&_cdcd_itf[i], ITF_MEM_RESET_SIZE);
tu_fifo_clear(&_cdcd_itf[i].rx_ff);
tu_fifo_clear(&_cdcd_itf[i].tx_ff);
}