| 89 | } |
| 90 | |
| 91 | struct serial_configure serial_cfg_from_args(char *_str) |
| 92 | { |
| 93 | char *str = _str; |
| 94 | struct serial_configure cfg = RT_SERIAL_CONFIG_DEFAULT; |
| 95 | |
| 96 | /* Format baudrate/parity/bits/flow (BBBBPNF), Default is 115200n8 */ |
| 97 | if (str && *str) |
| 98 | { |
| 99 | rt_uint32_t baudrate = 0; |
| 100 | |
| 101 | /* BBBB is the speed */ |
| 102 | while (*str && (*str >= '0' && *str <= '9')) |
| 103 | { |
| 104 | baudrate *= 10; |
| 105 | baudrate += *str - '0'; |
| 106 | ++str; |
| 107 | } |
| 108 | |
| 109 | if (baudrate) |
| 110 | { |
| 111 | cfg.baud_rate = baudrate; |
| 112 | } |
| 113 | |
| 114 | /* P is parity (n/o/e) */ |
| 115 | switch (*str) |
| 116 | { |
| 117 | case 'n': |
| 118 | cfg.parity = PARITY_NONE; |
| 119 | break; |
| 120 | case 'o': |
| 121 | cfg.parity = PARITY_ODD; |
| 122 | break; |
| 123 | case 'e': |
| 124 | cfg.parity = PARITY_EVEN; |
| 125 | break; |
| 126 | default: |
| 127 | --str; |
| 128 | break; |
| 129 | } |
| 130 | ++str; |
| 131 | |
| 132 | /* N is number of bits */ |
| 133 | if (*str && (*str >= '0' && *str <= '9')) |
| 134 | { |
| 135 | cfg.data_bits = *str - '0'; |
| 136 | ++str; |
| 137 | } |
| 138 | |
| 139 | /* F is flow ontrol ('r' for RTS) */ |
| 140 | if (*str) |
| 141 | { |
| 142 | cfg.flowcontrol = (*str == 'r' ? RT_SERIAL_FLOWCONTROL_CTSRTS : RT_SERIAL_FLOWCONTROL_NONE); |
| 143 | ++str; |
| 144 | } |
| 145 | |
| 146 | #ifdef RT_USING_OFW |
| 147 | if (*str == '\0') |
| 148 | { |
no test coverage detected