5 #include "serial_api.h"
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6 #include "serial_irq.h"
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7 #include "timer_dma.h"
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10 #define SIRQ_LEN 1024
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12 /* Port structure */
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16 uint8_t buf[SIRQ_LEN];
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27 static sirq_t sirq_ports[SIRQ_NUM_UART];
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29 /* Receive handler */
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30 void sirq_handler(uint32_t _port, SerialIrq event)
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32 sirq_t *port = (sirq_t *)_port;
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35 if (event == TxIrq && port->xmt.rix != port->xmt.wix) {
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36 int byte = port->xmt.buf[port->xmt.rix];
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37 serial_putc(&port->uart, byte);
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38 port->xmt.rix = (port->xmt.rix+1) % SIRQ_LEN;
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40 serial_irq_set(&port->uart, TxIrq, 0);
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45 if (event == RxIrq) {
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46 int byte = serial_getc(&port->uart);
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47 port->rcv.buf[port->rcv.wix] = byte;
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48 port->rcv.wix = (port->rcv.wix+1) % SIRQ_LEN;
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53 sirq_t *sirq_open(sirq_uart_t uart, PinName tx, PinName rx, int baud)
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56 sirq_t *port = &sirq_ports[uart];
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59 serial_init(&port->uart, tx, rx);
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60 serial_baud(&port->uart, baud);
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63 serial_irq_handler(&port->uart, sirq_handler, (uint32_t)port);
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64 serial_irq_set(&port->uart, RxIrq, 1);
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69 /* Write byte to the port */
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70 void sirq_putc(sirq_t *port, int byte)
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72 port->xmt.buf[port->xmt.wix] = byte;
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73 port->xmt.wix = (port->xmt.wix+1) % SIRQ_LEN;
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76 serial_irq_set(&port->uart, TxIrq, 1);
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80 /* Read byte from the port */
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81 int sirq_getc(sirq_t *port)
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84 if (port->rcv.rix != port->rcv.wix) {
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85 byte = port->rcv.buf[port->rcv.rix];
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86 port->rcv.rix = (port->rcv.rix+1) % SIRQ_LEN;
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91 /* Buffered write */
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92 void sirq_write(sirq_t *port, void *data, int len)
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94 uint8_t *bytes = (uint8_t*)data;
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95 for (int i = 0; i < len; i++)
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96 sirq_putc(port, bytes[i]);
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99 /* Check if port is writable */
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100 int sirq_ready(sirq_t *port)
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102 return port->rcv.rix != port->rcv.wix;
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106 void sirq_debug(sirq_t *port)
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108 sirq_printf("xmt - wix:%03x rix:%03x\r\n", port->xmt.wix, port->xmt.rix);
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109 sirq_printf("rcv - wix:%03x rix:%03x\r\n", port->rcv.wix, port->rcv.rix);
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110 sirq_printf("irq - ??\r\n");
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111 sirq_printf("uart - ??\r\n");
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113 // __IO uint8_t BDH;
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114 // __IO uint8_t BDL;
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115 // __IO uint8_t C1;
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116 // __IO uint8_t C2;
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117 // __IO uint8_t S1;
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118 // __IO uint8_t S2;
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119 // __IO uint8_t C3;
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120 // __IO uint8_t D;
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121 // __IO uint8_t MA1;
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122 // __IO uint8_t MA2;
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123 // __IO uint8_t C4;
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124 // __IO uint8_t C5;
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127 /* Write ASCII data to the output queue */
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128 void sirq_vprintf(const char *fmt, va_list ap)
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130 static char buf[512];
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131 int len = vsnprintf(buf, sizeof(buf), fmt, ap);
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132 for (int i = 0; i < len; i++)
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133 sirq_putc(&sirq_ports[0], buf[i]);
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136 void sirq_printf(const char *fmt, ...)
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140 sirq_vprintf(fmt, ap);
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