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Nut/OS
4.10.3
API Reference
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Nut/OS
4.10.3
API Reference
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00001 00036 /* 00037 * $Log: usart2.c,v $ 00038 * 00039 */ 00040 00041 #include <cfg/os.h> 00042 #include <cfg/clock.h> 00043 #include <cfg/arch.h> 00044 #include <cfg/uart.h> 00045 #include <cfg/arch/gpio.h> 00046 00047 #include <string.h> 00048 00049 #include <sys/atom.h> 00050 #include <sys/event.h> 00051 #include <sys/timer.h> 00052 00053 #include <dev/irqreg.h> 00054 #include <dev/usartavr32.h> 00055 #include <dev/gpio.h> 00056 00057 /* 00058 * Local function prototypes. 00059 */ 00060 static uint32_t Avr32UsartGetSpeed(void); 00061 static int Avr32UsartSetSpeed(uint32_t rate); 00062 static uint8_t Avr32UsartGetDataBits(void); 00063 static int Avr32UsartSetDataBits(uint8_t bits); 00064 static uint8_t Avr32UsartGetParity(void); 00065 static int Avr32UsartSetParity(uint8_t mode); 00066 static uint8_t Avr32UsartGetStopBits(void); 00067 static int Avr32UsartSetStopBits(uint8_t bits); 00068 static uint32_t Avr32UsartGetFlowControl(void); 00069 static int Avr32UsartSetFlowControl(uint32_t flags); 00070 static uint32_t Avr32UsartGetStatus(void); 00071 static int Avr32UsartSetStatus(uint32_t flags); 00072 static uint8_t Avr32UsartGetClockMode(void); 00073 static int Avr32UsartSetClockMode(uint8_t mode); 00074 static void Avr32UsartTxStart(void); 00075 static void Avr32UsartRxStart(void); 00076 static int Avr32UsartInit(void); 00077 static int Avr32UsartDeinit(void); 00078 00083 00087 static USARTDCB dcb_usart2 = { 00088 0, /* dcb_modeflags */ 00089 0, /* dcb_statusflags */ 00090 0, /* dcb_rtimeout */ 00091 0, /* dcb_wtimeout */ 00092 {0, 0, 0, 0, 0, 0, 0, 0}, /* dcb_tx_rbf */ 00093 {0, 0, 0, 0, 0, 0, 0, 0}, /* dcb_rx_rbf */ 00094 0, /* dbc_last_eol */ 00095 Avr32UsartInit, /* dcb_init */ 00096 Avr32UsartDeinit, /* dcb_deinit */ 00097 Avr32UsartTxStart, /* dcb_tx_start */ 00098 Avr32UsartRxStart, /* dcb_rx_start */ 00099 Avr32UsartSetFlowControl, /* dcb_set_flow_control */ 00100 Avr32UsartGetFlowControl, /* dcb_get_flow_control */ 00101 Avr32UsartSetSpeed, /* dcb_set_speed */ 00102 Avr32UsartGetSpeed, /* dcb_get_speed */ 00103 Avr32UsartSetDataBits, /* dcb_set_data_bits */ 00104 Avr32UsartGetDataBits, /* dcb_get_data_bits */ 00105 Avr32UsartSetParity, /* dcb_set_parity */ 00106 Avr32UsartGetParity, /* dcb_get_parity */ 00107 Avr32UsartSetStopBits, /* dcb_set_stop_bits */ 00108 Avr32UsartGetStopBits, /* dcb_get_stop_bits */ 00109 Avr32UsartSetStatus, /* dcb_set_status */ 00110 Avr32UsartGetStatus, /* dcb_get_status */ 00111 Avr32UsartSetClockMode, /* dcb_set_clock_mode */ 00112 Avr32UsartGetClockMode, /* dcb_get_clock_mode */ 00113 }; 00114 00130 NUTDEVICE devUsartAvr322 = { 00131 0, /* Pointer to next device, dev_next. */ 00132 {'u', 'a', 'r', 't', '2', 0, 0, 0, 0}, /* Unique device name, dev_name. */ 00133 IFTYP_CHAR, /* Type of device, dev_type. */ 00134 0, /* Base address, dev_base (not used). */ 00135 0, /* First interrupt number, dev_irq (not used). */ 00136 0, /* Interface control block, dev_icb (not used). */ 00137 &dcb_usart2, /* Driver control block, dev_dcb. */ 00138 UsartInit, /* Driver initialization routine, dev_init. */ 00139 UsartIOCtl, /* Driver specific control function, dev_ioctl. */ 00140 UsartRead, /* Read from device, dev_read. */ 00141 UsartWrite, /* Write to device, dev_write. */ 00142 UsartOpen, /* Open a device or file, dev_open. */ 00143 UsartClose, /* Close a device or file, dev_close. */ 00144 UsartSize /* Request file size, dev_size. */ 00145 }; 00146 00150 00151 #define SIG_UART sig_UART2 00152 #define dcb_usart dcb_usart2 00153 00154 #define USARTn_BASE AVR32_USART2 00155 00156 #if UART2_ALT_PINSET == ALTERNATE_PIN_SET2 00157 # if defined(AVR32_USART2_TXD_0_0_PIN) 00158 # define USART_RX_PIN AVR32_USART2_RXD_0_1_PIN 00159 # define USART_RX_FUNCTION AVR32_USART2_RXD_0_1_FUNCTION 00160 # define USART_TX_PIN AVR32_USART2_TXD_0_1_PIN 00161 # define USART_TX_FUNCTION AVR32_USART2_TXD_0_1_FUNCTION 00162 # elif defined(AVR32_USART2_TXD_0_PIN) 00163 # define USART_RX_PIN AVR32_USART2_RXD_1_PIN 00164 # define USART_RX_FUNCTION AVR32_USART2_RXD_1_FUNCTION 00165 # define USART_TX_PIN AVR32_USART2_TXD_1_PIN 00166 # define USART_TX_FUNCTION AVR32_USART2_TXD_1_FUNCTION 00167 # endif 00168 #elif UART2_ALT_PINSET == ALTERNATE_PIN_SET3 00169 # if defined(AVR32_USART2_TXD_0_0_PIN) 00170 # define USART_RX_PIN AVR32_USART2_RXD_0_2_PIN 00171 # define USART_RX_FUNCTION AVR32_USART2_RXD_0_2_FUNCTION 00172 # define USART_TX_PIN AVR32_USART2_TXD_0_2_PIN 00173 # define USART_TX_FUNCTION AVR32_USART2_TXD_0_2_FUNCTION 00174 # elif defined(AVR32_USART2_TXD_0_PIN) 00175 # define USART_RX_PIN AVR32_USART2_RXD_2_PIN 00176 # define USART_RX_FUNCTION AVR32_USART2_RXD_2_FUNCTION 00177 # define USART_TX_PIN AVR32_USART2_TXD_2_PIN 00178 # define USART_TX_FUNCTION AVR32_USART2_TXD_2_FUNCTION 00179 # endif 00180 #else // ALTERNATE_PIN_SET1 00181 # if defined(AVR32_USART2_TXD_0_0_PIN) 00182 # define USART_RX_PIN AVR32_USART2_RXD_0_0_PIN 00183 # define USART_RX_FUNCTION AVR32_USART2_RXD_0_0_FUNCTION 00184 # define USART_TX_PIN AVR32_USART2_TXD_0_0_PIN 00185 # define USART_TX_FUNCTION AVR32_USART2_TXD_0_0_FUNCTION 00186 # elif defined(AVR32_USART2_TXD_0_PIN) 00187 # define USART_RX_PIN AVR32_USART2_RXD_0_PIN 00188 # define USART_RX_FUNCTION AVR32_USART2_RXD_0_FUNCTION 00189 # define USART_TX_PIN AVR32_USART2_TXD_0_PIN 00190 # define USART_TX_FUNCTION AVR32_USART2_TXD_0_FUNCTION 00191 # endif 00192 #endif 00193 00194 #include "usart.c"