diff options
Diffstat (limited to 'src/class/cdc/cdc_device.h')
| -rw-r--r-- | src/class/cdc/cdc_device.h | 195 |
1 files changed, 72 insertions, 123 deletions
diff --git a/src/class/cdc/cdc_device.h b/src/class/cdc/cdc_device.h index db709b3bc..5c2d07c5b 100644 --- a/src/class/cdc/cdc_device.h +++ b/src/class/cdc/cdc_device.h @@ -24,8 +24,8 @@ * This file is part of the TinyUSB stack. */ -#ifndef _TUSB_CDC_DEVICE_H_ -#define _TUSB_CDC_DEVICE_H_ +#ifndef TUSB_CDC_DEVICE_H_ +#define TUSB_CDC_DEVICE_H_ #include "cdc.h" @@ -41,213 +41,162 @@ #define CFG_TUD_CDC_EP_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64) #endif -// By default the TX fifo buffer is cleared on connect / bus reset. -// Enable this to persist any data in the fifo instead. -#ifndef CFG_TUD_CDC_PERSISTENT_TX_BUFF - #define CFG_TUD_CDC_PERSISTENT_TX_BUFF (0) -#endif - #ifdef __cplusplus extern "C" { #endif -/** \addtogroup CDC_Serial Serial - * @{ - * \defgroup CDC_Serial_Device Device - * @{ */ +//--------------------------------------------------------------------+ +// Driver Configuration +//--------------------------------------------------------------------+ + +typedef struct TU_ATTR_PACKED { + uint8_t rx_persistent : 1; // keep rx fifo on bus reset or disconnect + uint8_t tx_persistent : 1; // keep tx fifo on bus reset or disconnect +} tud_cdc_configure_fifo_t; + +// Configure CDC FIFOs behavior +bool tud_cdc_configure_fifo(tud_cdc_configure_fifo_t const* cfg); //--------------------------------------------------------------------+ -// Application API (Multiple Ports) -// CFG_TUD_CDC > 1 +// Application API (Multiple Ports) i.e CFG_TUD_CDC > 1 //--------------------------------------------------------------------+ // Check if terminal is connected to this port -bool tud_cdc_n_connected (uint8_t itf); +bool tud_cdc_n_connected(uint8_t itf); // Get current line state. Bit 0: DTR (Data Terminal Ready), Bit 1: RTS (Request to Send) -uint8_t tud_cdc_n_get_line_state (uint8_t itf); +uint8_t tud_cdc_n_get_line_state(uint8_t itf); // Get current line encoding: bit rate, stop bits parity etc .. -void tud_cdc_n_get_line_coding (uint8_t itf, cdc_line_coding_t* coding); +void tud_cdc_n_get_line_coding(uint8_t itf, cdc_line_coding_t* coding); // Set special character that will trigger tud_cdc_rx_wanted_cb() callback on receiving -void tud_cdc_n_set_wanted_char (uint8_t itf, char wanted); +void tud_cdc_n_set_wanted_char(uint8_t itf, char wanted); // Get the number of bytes available for reading -uint32_t tud_cdc_n_available (uint8_t itf); +uint32_t tud_cdc_n_available(uint8_t itf); // Read received bytes -uint32_t tud_cdc_n_read (uint8_t itf, void* buffer, uint32_t bufsize); +uint32_t tud_cdc_n_read(uint8_t itf, void* buffer, uint32_t bufsize); // Read a byte, return -1 if there is none -static inline -int32_t tud_cdc_n_read_char (uint8_t itf); +TU_ATTR_ALWAYS_INLINE static inline int32_t tud_cdc_n_read_char(uint8_t itf) { + uint8_t ch; + return tud_cdc_n_read(itf, &ch, 1) ? (int32_t) ch : -1; +} // Clear the received FIFO -void tud_cdc_n_read_flush (uint8_t itf); +void tud_cdc_n_read_flush(uint8_t itf); // Get a byte from FIFO without removing it -bool tud_cdc_n_peek (uint8_t itf, uint8_t* ui8); +bool tud_cdc_n_peek(uint8_t itf, uint8_t* ui8); // Write bytes to TX FIFO, data may remain in the FIFO for a while -uint32_t tud_cdc_n_write (uint8_t itf, void const* buffer, uint32_t bufsize); +uint32_t tud_cdc_n_write(uint8_t itf, void const* buffer, uint32_t bufsize); // Write a byte -static inline -uint32_t tud_cdc_n_write_char (uint8_t itf, char ch); +TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_cdc_n_write_char(uint8_t itf, char ch) { + return tud_cdc_n_write(itf, &ch, 1); +} // Write a null-terminated string -static inline -uint32_t tud_cdc_n_write_str (uint8_t itf, char const* str); +TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_cdc_n_write_str(uint8_t itf, char const* str) { + return tud_cdc_n_write(itf, str, strlen(str)); +} // Force sending data if possible, return number of forced bytes -uint32_t tud_cdc_n_write_flush (uint8_t itf); +uint32_t tud_cdc_n_write_flush(uint8_t itf); // Return the number of bytes (characters) available for writing to TX FIFO buffer in a single n_write operation. -uint32_t tud_cdc_n_write_available (uint8_t itf); +uint32_t tud_cdc_n_write_available(uint8_t itf); // Clear the transmit FIFO -bool tud_cdc_n_write_clear (uint8_t itf); +bool tud_cdc_n_write_clear(uint8_t itf); //--------------------------------------------------------------------+ // Application API (Single Port) //--------------------------------------------------------------------+ -static inline bool tud_cdc_connected (void); -static inline uint8_t tud_cdc_get_line_state (void); -static inline void tud_cdc_get_line_coding (cdc_line_coding_t* coding); -static inline void tud_cdc_set_wanted_char (char wanted); - -static inline uint32_t tud_cdc_available (void); -static inline int32_t tud_cdc_read_char (void); -static inline uint32_t tud_cdc_read (void* buffer, uint32_t bufsize); -static inline void tud_cdc_read_flush (void); -static inline bool tud_cdc_peek (uint8_t* ui8); - -static inline uint32_t tud_cdc_write_char (char ch); -static inline uint32_t tud_cdc_write (void const* buffer, uint32_t bufsize); -static inline uint32_t tud_cdc_write_str (char const* str); -static inline uint32_t tud_cdc_write_flush (void); -static inline uint32_t tud_cdc_write_available (void); -static inline bool tud_cdc_write_clear (void); - -//--------------------------------------------------------------------+ -// Application Callback API (weak is optional) -//--------------------------------------------------------------------+ - -// Invoked when received new data -TU_ATTR_WEAK void tud_cdc_rx_cb(uint8_t itf); - -// Invoked when received `wanted_char` -TU_ATTR_WEAK void tud_cdc_rx_wanted_cb(uint8_t itf, char wanted_char); - -// Invoked when a TX is complete and therefore space becomes available in TX buffer -TU_ATTR_WEAK void tud_cdc_tx_complete_cb(uint8_t itf); - -// Invoked when line state DTR & RTS are changed via SET_CONTROL_LINE_STATE -TU_ATTR_WEAK void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts); - -// Invoked when line coding is change via SET_LINE_CODING -TU_ATTR_WEAK void tud_cdc_line_coding_cb(uint8_t itf, cdc_line_coding_t const* p_line_coding); - -// Invoked when received send break -TU_ATTR_WEAK void tud_cdc_send_break_cb(uint8_t itf, uint16_t duration_ms); - -//--------------------------------------------------------------------+ -// Inline Functions -//--------------------------------------------------------------------+ -static inline int32_t tud_cdc_n_read_char (uint8_t itf) -{ - uint8_t ch; - return tud_cdc_n_read(itf, &ch, 1) ? (int32_t) ch : -1; -} - -static inline uint32_t tud_cdc_n_write_char(uint8_t itf, char ch) -{ - return tud_cdc_n_write(itf, &ch, 1); -} - -static inline uint32_t tud_cdc_n_write_str (uint8_t itf, char const* str) -{ - return tud_cdc_n_write(itf, str, strlen(str)); -} - -static inline bool tud_cdc_connected (void) -{ +TU_ATTR_ALWAYS_INLINE static inline bool tud_cdc_connected(void) { return tud_cdc_n_connected(0); } -static inline uint8_t tud_cdc_get_line_state (void) -{ +TU_ATTR_ALWAYS_INLINE static inline uint8_t tud_cdc_get_line_state(void) { return tud_cdc_n_get_line_state(0); } -static inline void tud_cdc_get_line_coding (cdc_line_coding_t* coding) -{ +TU_ATTR_ALWAYS_INLINE static inline void tud_cdc_get_line_coding(cdc_line_coding_t* coding) { tud_cdc_n_get_line_coding(0, coding); } -static inline void tud_cdc_set_wanted_char (char wanted) -{ +TU_ATTR_ALWAYS_INLINE static inline void tud_cdc_set_wanted_char(char wanted) { tud_cdc_n_set_wanted_char(0, wanted); } -static inline uint32_t tud_cdc_available (void) -{ +TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_cdc_available(void) { return tud_cdc_n_available(0); } -static inline int32_t tud_cdc_read_char (void) -{ +TU_ATTR_ALWAYS_INLINE static inline int32_t tud_cdc_read_char(void) { return tud_cdc_n_read_char(0); } -static inline uint32_t tud_cdc_read (void* buffer, uint32_t bufsize) -{ +TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_cdc_read(void* buffer, uint32_t bufsize) { return tud_cdc_n_read(0, buffer, bufsize); } -static inline void tud_cdc_read_flush (void) -{ +TU_ATTR_ALWAYS_INLINE static inline void tud_cdc_read_flush(void) { tud_cdc_n_read_flush(0); } -static inline bool tud_cdc_peek (uint8_t* ui8) -{ +TU_ATTR_ALWAYS_INLINE static inline bool tud_cdc_peek(uint8_t* ui8) { return tud_cdc_n_peek(0, ui8); } -static inline uint32_t tud_cdc_write_char (char ch) -{ +TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_cdc_write_char(char ch) { return tud_cdc_n_write_char(0, ch); } -static inline uint32_t tud_cdc_write (void const* buffer, uint32_t bufsize) -{ +TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_cdc_write(void const* buffer, uint32_t bufsize) { return tud_cdc_n_write(0, buffer, bufsize); } -static inline uint32_t tud_cdc_write_str (char const* str) -{ +TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_cdc_write_str(char const* str) { return tud_cdc_n_write_str(0, str); } -static inline uint32_t tud_cdc_write_flush (void) -{ +TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_cdc_write_flush(void) { return tud_cdc_n_write_flush(0); } -static inline uint32_t tud_cdc_write_available(void) -{ +TU_ATTR_ALWAYS_INLINE static inline uint32_t tud_cdc_write_available(void) { return tud_cdc_n_write_available(0); } -static inline bool tud_cdc_write_clear(void) -{ +TU_ATTR_ALWAYS_INLINE static inline bool tud_cdc_write_clear(void) { return tud_cdc_n_write_clear(0); } -/** @} */ -/** @} */ +//--------------------------------------------------------------------+ +// Application Callback API (weak is optional) +//--------------------------------------------------------------------+ + +// Invoked when received new data +TU_ATTR_WEAK void tud_cdc_rx_cb(uint8_t itf); + +// Invoked when received `wanted_char` +TU_ATTR_WEAK void tud_cdc_rx_wanted_cb(uint8_t itf, char wanted_char); + +// Invoked when a TX is complete and therefore space becomes available in TX buffer +TU_ATTR_WEAK void tud_cdc_tx_complete_cb(uint8_t itf); + +// Invoked when line state DTR & RTS are changed via SET_CONTROL_LINE_STATE +TU_ATTR_WEAK void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts); + +// Invoked when line coding is change via SET_LINE_CODING +TU_ATTR_WEAK void tud_cdc_line_coding_cb(uint8_t itf, cdc_line_coding_t const* p_line_coding); + +// Invoked when received send break +TU_ATTR_WEAK void tud_cdc_send_break_cb(uint8_t itf, uint16_t duration_ms); //--------------------------------------------------------------------+ // INTERNAL USBD-CLASS DRIVER API |