add tusbd_cdc_is_busy
enhance cdc serial device demo refractor fifo.c
This commit is contained in:
hathach
parent
15d3a418bd
commit
7ff0dbb64c
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@ -39,6 +39,9 @@
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#include "cdcd_app.h"
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#if TUSB_CFG_DEVICE_CDC
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#include "common/fifo.h" // TODO refractor
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//--------------------------------------------------------------------+
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// INCLUDE
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//--------------------------------------------------------------------+
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@ -54,18 +57,16 @@ OSAL_SEM_DEF(cdcd_semaphore);
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static osal_semaphore_handle_t sem_hdl;
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static uint8_t cdcd_app_recv_buffer[CDCD_APP_BUFFER_SIZE] TUSB_CFG_ATTR_USBRAM;
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static uint8_t cdcd_app_send_buffer[CDCD_APP_BUFFER_SIZE] TUSB_CFG_ATTR_USBRAM;
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static uint16_t received_bytes; // set by transfer complete callback
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static uint8_t serial_rx_buffer[CDCD_APP_BUFFER_SIZE] TUSB_CFG_ATTR_USBRAM;
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static uint8_t serial_tx_buffer[CDCD_APP_BUFFER_SIZE] TUSB_CFG_ATTR_USBRAM;
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//--------------------------------------------------------------------+
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// INTERNAL OBJECT & FUNCTION DECLARATION
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//--------------------------------------------------------------------+
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FIFO_DEF(fifo_serial, CDCD_APP_BUFFER_SIZE, uint8_t, true);
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//--------------------------------------------------------------------+
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// IMPLEMENTATION
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//--------------------------------------------------------------------+
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void cdcd_serial_app_init(void)
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{
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sem_hdl = osal_semaphore_create( OSAL_SEM_REF(cdcd_semaphore) );
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@ -78,8 +79,7 @@ void tusbd_cdc_mounted_cb(uint8_t coreid)
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{
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osal_semaphore_reset(sem_hdl);
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received_bytes = 0;
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tusbd_cdc_receive(coreid, cdcd_app_recv_buffer, CDCD_APP_BUFFER_SIZE, true);
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tusbd_cdc_receive(coreid, serial_rx_buffer, CDCD_APP_BUFFER_SIZE, true);
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}
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void tusbd_cdc_xfer_isr(uint8_t coreid, tusb_event_t event, cdc_pipeid_t pipe_id, uint32_t xferred_bytes)
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@ -90,9 +90,12 @@ void tusbd_cdc_xfer_isr(uint8_t coreid, tusb_event_t event, cdc_pipeid_t pipe_id
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switch(event)
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{
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case TUSB_EVENT_XFER_COMPLETE:
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received_bytes = min16_of(xferred_bytes, CDCD_APP_BUFFER_SIZE); // discard overflow bytes
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for(uint8_t i=0; i<xferred_bytes; i++)
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{
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fifo_write(&fifo_serial, serial_rx_buffer+i);
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}
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osal_semaphore_post(sem_hdl); // notify main task
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break;
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break;
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case TUSB_EVENT_XFER_ERROR:
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xferred_bytes = 0; // ignore
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@ -122,14 +125,23 @@ OSAL_TASK_FUNCTION( cdcd_serial_app_task ) (void* p_task_para)
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if ( tusbd_cdc_is_configured(0) )
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{
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if ( received_bytes )
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{ // echo back
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memcpy(cdcd_app_send_buffer, cdcd_app_recv_buffer, received_bytes);
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tusbd_cdc_send(0, cdcd_app_send_buffer, received_bytes, false);
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received_bytes = 0;
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// echo back data in the fifo
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if ( !tusbd_cdc_is_busy(0, CDC_PIPE_DATA_IN) )
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{
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uint16_t count=0;
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while( fifo_read(&fifo_serial, &serial_tx_buffer[count]) )
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{
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count++;
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}
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if (count)
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{
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tusbd_cdc_send(0, serial_tx_buffer, count, false);
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}
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}
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tusbd_cdc_receive(0, cdcd_app_recv_buffer, CDCD_APP_BUFFER_SIZE, true);
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// getting next data from host
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tusbd_cdc_receive(0, serial_rx_buffer, CDCD_APP_BUFFER_SIZE, true);
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}
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OSAL_TASK_LOOP_END
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@ -448,7 +448,7 @@
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<Group>
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<GroupName>app</GroupName>
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<tvExp>0</tvExp>
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<tvExp>1</tvExp>
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<tvExpOptDlg>0</tvExpOptDlg>
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<cbSel>0</cbSel>
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<RteFlg>0</RteFlg>
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@ -474,10 +474,10 @@
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<FileType>1</FileType>
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<tvExp>0</tvExp>
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<Focus>0</Focus>
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<ColumnNumber>0</ColumnNumber>
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<ColumnNumber>3</ColumnNumber>
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<tvExpOptDlg>0</tvExpOptDlg>
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<TopLine>1</TopLine>
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<CurrentLine>1</CurrentLine>
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<CurrentLine>2</CurrentLine>
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<bDave2>0</bDave2>
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<PathWithFileName>..\src\cdc_serial_app.c</PathWithFileName>
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<FilenameWithoutPath>cdc_serial_app.c</FilenameWithoutPath>
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@ -736,7 +736,7 @@
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<Group>
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<GroupName>tinyusb</GroupName>
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<tvExp>0</tvExp>
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<tvExp>1</tvExp>
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<tvExpOptDlg>0</tvExpOptDlg>
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<cbSel>0</cbSel>
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<RteFlg>0</RteFlg>
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@ -744,7 +744,7 @@
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<GroupNumber>3</GroupNumber>
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<FileNumber>18</FileNumber>
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<FileType>1</FileType>
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<tvExp>0</tvExp>
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<tvExp>1</tvExp>
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<Focus>0</Focus>
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<ColumnNumber>64</ColumnNumber>
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<tvExpOptDlg>0</tvExpOptDlg>
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@ -924,8 +924,8 @@
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<Focus>0</Focus>
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<ColumnNumber>0</ColumnNumber>
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<tvExpOptDlg>0</tvExpOptDlg>
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<TopLine>0</TopLine>
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<CurrentLine>0</CurrentLine>
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<TopLine>54</TopLine>
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<CurrentLine>62</CurrentLine>
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<bDave2>0</bDave2>
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<PathWithFileName>..\..\..\tinyusb\common\fifo.c</PathWithFileName>
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<FilenameWithoutPath>fifo.c</FilenameWithoutPath>
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@ -1156,7 +1156,7 @@
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<Focus>0</Focus>
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<ColumnNumber>0</ColumnNumber>
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<tvExpOptDlg>0</tvExpOptDlg>
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<TopLine>1705</TopLine>
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<TopLine>1688</TopLine>
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<CurrentLine>1713</CurrentLine>
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<bDave2>0</bDave2>
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<PathWithFileName>..\..\..\vendor\fatfs\ff.c</PathWithFileName>
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@ -92,7 +92,7 @@ void tusbh_cdc_xfer_isr(uint8_t dev_addr, tusb_event_t event, cdc_pipeid_t pipe_
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break;
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case TUSB_EVENT_XFER_ERROR:
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xferred_bytes = 0; // ignore
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received_bytes = 0; // ignore
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break;
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case TUSB_EVENT_XFER_STALLED:
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@ -74,7 +74,7 @@ static inline bool cdcd_is_configured(uint8_t coreid)
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return cdcd_data[coreid].interface_number != INTERFACE_INVALID_NUMBER;
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}
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tusb_error_t cdcd_xfer(uint8_t coreid, cdc_pipeid_t pipeid, void * p_buffer, uint32_t length, bool is_notify)
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static tusb_error_t cdcd_xfer(uint8_t coreid, cdc_pipeid_t pipeid, void * p_buffer, uint32_t length, bool is_notify)
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{
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ASSERT(cdcd_is_configured(coreid), TUSB_ERROR_USBD_INTERFACE_NOT_CONFIGURED);
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@ -88,13 +88,20 @@ tusb_error_t cdcd_xfer(uint8_t coreid, cdc_pipeid_t pipeid, void * p_buffer, ui
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}
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//--------------------------------------------------------------------+
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// APPLICATION API
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// APPLICATION API (Parameters requires validation)
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//--------------------------------------------------------------------+
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bool tusbd_cdc_is_configured(uint8_t coreid)
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{
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return cdcd_is_configured(coreid);
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}
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bool tusbd_cdc_is_busy(uint8_t coreid, cdc_pipeid_t pipeid)
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{
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ASSERT(cdcd_is_configured(coreid) && (pipeid < CDC_PIPE_ERROR), false);
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return dcd_pipe_is_busy( cdcd_data[coreid].edpt_hdl[pipeid] );
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}
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tusb_error_t tusbd_cdc_receive(uint8_t coreid, void * p_buffer, uint32_t length, bool is_notify)
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{
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return cdcd_xfer(coreid, CDC_PIPE_DATA_OUT, p_buffer, length, is_notify);
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@ -208,7 +215,7 @@ tusb_error_t cdcd_control_request(uint8_t coreid, tusb_control_request_t const *
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case CDC_REQUEST_SET_LINE_CODING:
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dcd_pipe_control_xfer(coreid, p_request->bmRequestType_bit.direction,
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&cdcd_line_coding[coreid], min16_of(sizeof(cdc_line_coding_t), p_request->wLength) );
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// TODO notify application
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// TODO notify application on xfer complete
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break;
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case CDC_REQUEST_SET_CONTROL_LINE_STATE: // TODO extract DTE present
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@ -58,6 +58,7 @@
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// APPLICATION API
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//--------------------------------------------------------------------+
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bool tusbd_cdc_is_configured(uint8_t coreid);
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bool tusbd_cdc_is_busy(uint8_t coreid, cdc_pipeid_t pipeid) ATTR_PURE ATTR_WARN_UNUSED_RESULT;
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tusb_error_t tusbd_cdc_send(uint8_t coreid, void * p_data, uint32_t length, bool is_notify);
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tusb_error_t tusbd_cdc_receive(uint8_t coreid, void * p_buffer, uint32_t length, bool is_notify);
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@ -66,6 +67,7 @@ tusb_error_t tusbd_cdc_receive(uint8_t coreid, void * p_buffer, uint32_t length,
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void tusbd_cdc_mounted_cb(uint8_t coreid);
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void tusbd_cdc_unmounted_cb(uint8_t coreid);
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void tusbd_cdc_xfer_isr(uint8_t coreid, tusb_event_t event, cdc_pipeid_t pipe_id, uint32_t xferred_bytes);
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void tusbd_cdc_line_coding_changed_cb(uint8_t coreid, cdc_line_coding_t* p_line_coding);
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//--------------------------------------------------------------------+
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// USBD-CLASS DRIVER API
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@ -35,68 +35,13 @@
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This file is part of the tinyusb stack.
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*/
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/**************************************************************************/
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#include <string.h>
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#include "fifo.h"
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/**************************************************************************/
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/*!
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@brief Disables the IRQ specified in the FIFO's 'irq' field
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to prevent reads/write issues with interrupts
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static inline void mutex_lock (fifo_t* f) ATTR_ALWAYS_INLINE;
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static inline void mutex_unlock (fifo_t* f) ATTR_ALWAYS_INLINE;
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static inline bool is_fifo_initalized(fifo_t* f) ATTR_ALWAYS_INLINE;
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@param[in] f
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Pointer to the FIFO that should be protected
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*/
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/**************************************************************************/
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static inline void mutex_lock (fifo_t* f)
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{
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// if (f->irq > 0)
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// NVIC_DisableIRQ(f->irq);
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}
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/**************************************************************************/
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/*!
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@brief Re-enables the IRQ specified in the FIFO's 'irq' field
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@param[in] f
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Pointer to the FIFO that should be protected
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*/
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/**************************************************************************/
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static inline void mutex_unlock (fifo_t* f)
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{
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// if (f->irq > 0)
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// NVIC_EnableIRQ(f->irq);
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}
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/**************************************************************************/
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/*!
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@brief Initialises the FIFO buffer
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@param[in] f
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Pointer to the fifo_t object to intiialize
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@param[in] buffer
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Pointer to the buffer's location in memory
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@param[in] size
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The buffer size in bytes
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@param[in] overwritable
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Set to TRUE is the FIFO is overwritable when the FIFO
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is full (the first element will be overwritten)
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@param[in] irq
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The IRQ number to disable for MUTEX protection.
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Set the -1 if not required.
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*/
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/**************************************************************************/
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bool fifo_init(fifo_t* f, uint8_t* buffer, uint16_t size, bool overwritable) //, IRQn_Type irq)
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{
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ASSERT(size > 0, false);
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f->buf = buffer;
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f->size = size;
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f->rd_ptr = f->wr_ptr = f->len = 0;
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f->overwritable = overwritable;
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// f->irq = irq;
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return true;
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}
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/**************************************************************************/
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/*!
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@ -114,49 +59,26 @@ bool fifo_init(fifo_t* f, uint8_t* buffer, uint16_t size, bool overwritable) //,
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@returns TRUE if the queue is not empty
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*/
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/**************************************************************************/
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bool fifo_read(fifo_t* f, uint8_t *data)
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bool fifo_read(fifo_t* f, void * p_buffer)
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{
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if (fifo_is_empty(f))
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if( !is_fifo_initalized(f) || fifo_is_empty(f) )
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{
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return false;
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}
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mutex_lock(f);
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*data = f->buf[f->rd_ptr];
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f->rd_ptr = (f->rd_ptr + 1) % f->size;
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f->len--;
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memcpy(p_buffer,
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f->buffer + (f->rd_idx * f->item_size),
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f->item_size);
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f->rd_idx = (f->rd_idx + 1) % f->depth;
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f->count--;
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mutex_unlock(f);
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return true;
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}
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/**************************************************************************/
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/*!
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@brief Read a byte array from FIFO
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@param[in] f
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Pointer to the FIFO buffer to manipulate
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@param[in] rx
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Pointer to the place holder for data read from the buffer
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@param[in] maxlen
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The maximum number of bytes to read from the FIFO
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@returns The actual number of bytes read from the FIFO
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*/
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/**************************************************************************/
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uint16_t fifo_read_n(fifo_t* f, uint8_t* rx, uint16_t maxlen)
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{
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uint16_t len = 0;
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while ( len < maxlen && fifo_read(f, rx) )
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{
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len++;
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rx++;
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}
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return len;
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}
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/**************************************************************************/
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/*!
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@brief Write one byte into the RX buffer.
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@ -174,22 +96,27 @@ uint16_t fifo_read_n(fifo_t* f, uint8_t* rx, uint16_t maxlen)
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FIFO will always return TRUE)
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*/
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/**************************************************************************/
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bool fifo_write(fifo_t* f, uint8_t data)
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bool fifo_write(fifo_t* f, void const * p_data)
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{
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if ( fifo_is_full(f) && f->overwritable == false)
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return false;
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if ( !is_fifo_initalized(f) || (fifo_is_full(f) && !f->overwritable) )
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{
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return false;
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}
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mutex_lock(f);
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f->buf[f->wr_ptr] = data;
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f->wr_ptr = (f->wr_ptr + 1) % f->size;
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memcpy( f->buffer + (f->wr_idx * f->item_size),
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p_data,
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f->item_size);
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f->wr_idx = (f->wr_idx + 1) % f->depth;
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if (fifo_is_full(f))
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{
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f->rd_ptr = f->wr_ptr; // keep the full state (rd == wr && len = size)
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f->rd_idx = f->wr_idx; // keep the full state (rd == wr && len = size)
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}else
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{
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f->len++;
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f->count++;
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}
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mutex_unlock(f);
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@ -209,9 +136,53 @@ void fifo_clear(fifo_t *f)
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{
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mutex_lock(f);
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f->rd_ptr = 0;
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f->wr_ptr = 0;
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f->len = 0;
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f->rd_idx = f->wr_idx = f->count = 0;
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mutex_unlock(f);
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}
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//--------------------------------------------------------------------+
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// HELPER FUNCTIONS
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//--------------------------------------------------------------------+
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/**************************************************************************/
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/*!
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@brief Disables the IRQ specified in the FIFO's 'irq' field
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to prevent reads/write issues with interrupts
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@param[in] f
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Pointer to the FIFO that should be protected
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*/
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/**************************************************************************/
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static inline void mutex_lock (fifo_t* f)
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{
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// if (f->irq > 0)
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// {
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// #if !defined (_TEST_)
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// NVIC_DisableIRQ(f->irq);
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// #endif
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// }
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}
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/**************************************************************************/
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/*!
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@brief Re-enables the IRQ specified in the FIFO's 'irq' field
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@param[in] f
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Pointer to the FIFO that should be protected
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*/
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/**************************************************************************/
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static inline void mutex_unlock (fifo_t* f)
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{
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// if (f->irq > 0)
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// {
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// #if !defined (_TEST_)
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// NVIC_EnableIRQ(f->irq);
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// #endif
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// }
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}
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static inline bool is_fifo_initalized(fifo_t* f)
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{
|
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return !( f->buffer == NULL || f->depth == 0 || f->item_size == 0);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -36,12 +36,6 @@
|
|||
*/
|
||||
/**************************************************************************/
|
||||
|
||||
/** \file
|
||||
* \brief Error Header
|
||||
*
|
||||
* \note TBD
|
||||
*/
|
||||
|
||||
/** \ingroup Group_Common
|
||||
*
|
||||
* @{
|
||||
|
|
@ -59,36 +53,47 @@
|
|||
/** \struct fifo_t
|
||||
* \brief Simple Circular FIFO
|
||||
*/
|
||||
typedef struct _fifo_t
|
||||
typedef struct
|
||||
{
|
||||
uint8_t* buf ; ///< buffer pointer
|
||||
uint16_t size ; ///< buffer size
|
||||
volatile uint16_t len ; ///< bytes in fifo
|
||||
volatile uint16_t wr_ptr ; ///< write pointer
|
||||
volatile uint16_t rd_ptr ; ///< read pointer
|
||||
bool overwritable ; ///< allow overwrite data when full
|
||||
// IRQn_Type irq ; ///< TODO (abstract later) interrupt used to lock fifo
|
||||
uint16_t const depth ; ///< max items
|
||||
uint16_t const item_size ; ///< size of each item
|
||||
volatile uint16_t count ; ///< number of items in queue
|
||||
volatile uint16_t wr_idx ; ///< write pointer
|
||||
volatile uint16_t rd_idx ; ///< read pointer
|
||||
bool overwritable ;
|
||||
uint8_t buffer[] ; ///< buffer pointer
|
||||
// IRQn_Type irq;
|
||||
} fifo_t;
|
||||
|
||||
bool fifo_init(fifo_t* f, uint8_t* buffer, uint16_t size, bool overwritable); //, IRQn_Type irq);
|
||||
bool fifo_write(fifo_t* f, uint8_t data);
|
||||
bool fifo_read(fifo_t* f, uint8_t *data);
|
||||
uint16_t fifo_read_n(fifo_t* f, uint8_t * rx, uint16_t maxlen);
|
||||
#define FIFO_DEF(name, ff_depth, type, is_overwritable) /*, irq_mutex)*/ \
|
||||
fifo_t name = {\
|
||||
.depth = ff_depth,\
|
||||
.item_size = sizeof(type),\
|
||||
.overwritable = is_overwritable,\
|
||||
/*.irq = irq_mutex*/\
|
||||
.buffer = { [ff_depth*sizeof(type) - 1] = 0 },\
|
||||
}
|
||||
|
||||
bool fifo_write(fifo_t* f, void const * p_data);
|
||||
bool fifo_read(fifo_t* f, void * p_buffer);
|
||||
void fifo_clear(fifo_t *f);
|
||||
|
||||
static inline bool fifo_is_empty(fifo_t* f) ATTR_PURE ATTR_ALWAYS_INLINE;
|
||||
static inline bool fifo_is_empty(fifo_t* f)
|
||||
{
|
||||
return (f->len == 0);
|
||||
return (f->count == 0);
|
||||
}
|
||||
|
||||
static inline bool fifo_is_full(fifo_t* f) ATTR_PURE ATTR_ALWAYS_INLINE;
|
||||
static inline bool fifo_is_full(fifo_t* f)
|
||||
{
|
||||
return (f->len == f->size);
|
||||
return (f->count == f->depth);
|
||||
}
|
||||
|
||||
static inline uint16_t fifo_get_length(fifo_t* f) ATTR_PURE ATTR_ALWAYS_INLINE;
|
||||
static inline uint16_t fifo_get_length(fifo_t* f)
|
||||
{
|
||||
return f->len;
|
||||
return f->count;
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
|
|
|
|||
Loading…
Reference in New Issue