| 1 | /* |
| 2 | * sercfg.c - the serial-port specific parts of the PuTTY |
| 3 | * configuration box. Centralised as cross-platform code because |
| 4 | * more than one platform will want to use it, but not part of the |
| 5 | * main configuration. The expectation is that each platform's |
| 6 | * local config function will call out to ser_setup_config_box() if |
| 7 | * it needs to set up the standard serial stuff. (Of course, it can |
| 8 | * then apply local tweaks after ser_setup_config_box() returns, if |
| 9 | * it needs to.) |
| 10 | */ |
| 11 | |
| 12 | #include <assert.h> |
| 13 | #include <stdlib.h> |
| 14 | |
| 15 | #include "putty.h" |
| 16 | #include "dialog.h" |
| 17 | #include "storage.h" |
| 18 | |
| 19 | static void serial_parity_handler(union control *ctrl, void *dlg, |
| 20 | void *data, int event) |
| 21 | { |
| 22 | static const struct { |
| 23 | const char *name; |
| 24 | int val; |
| 25 | } parities[] = { |
| 26 | {"None", SER_PAR_NONE}, |
| 27 | {"Odd", SER_PAR_ODD}, |
| 28 | {"Even", SER_PAR_EVEN}, |
| 29 | {"Mark", SER_PAR_MARK}, |
| 30 | {"Space", SER_PAR_SPACE}, |
| 31 | }; |
| 32 | int mask = ctrl->listbox.context.i; |
| 33 | int i, j; |
| 34 | Conf *conf = (Conf *)data; |
| 35 | |
| 36 | if (event == EVENT_REFRESH) { |
| 37 | /* Fetching this once at the start of the function ensures we |
| 38 | * remember what the right value is supposed to be when |
| 39 | * operations below cause reentrant calls to this function. */ |
| 40 | int oldparity = conf_get_int(conf, CONF_serparity); |
| 41 | |
| 42 | dlg_update_start(ctrl, dlg); |
| 43 | dlg_listbox_clear(ctrl, dlg); |
| 44 | for (i = 0; i < lenof(parities); i++) { |
| 45 | if (mask & (1 << i)) |
| 46 | dlg_listbox_addwithid(ctrl, dlg, parities[i].name, |
| 47 | parities[i].val); |
| 48 | } |
| 49 | for (i = j = 0; i < lenof(parities); i++) { |
| 50 | if (mask & (1 << i)) { |
| 51 | if (oldparity == parities[i].val) { |
| 52 | dlg_listbox_select(ctrl, dlg, j); |
| 53 | break; |
| 54 | } |
| 55 | j++; |
| 56 | } |
| 57 | } |
| 58 | if (i == lenof(parities)) { /* an unsupported setting was chosen */ |
| 59 | dlg_listbox_select(ctrl, dlg, 0); |
| 60 | oldparity = SER_PAR_NONE; |
| 61 | } |
| 62 | dlg_update_done(ctrl, dlg); |
| 63 | conf_set_int(conf, CONF_serparity, oldparity); /* restore */ |
| 64 | } else if (event == EVENT_SELCHANGE) { |
| 65 | int i = dlg_listbox_index(ctrl, dlg); |
| 66 | if (i < 0) |
| 67 | i = SER_PAR_NONE; |
| 68 | else |
| 69 | i = dlg_listbox_getid(ctrl, dlg, i); |
| 70 | conf_set_int(conf, CONF_serparity, i); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | static void serial_flow_handler(union control *ctrl, void *dlg, |
| 75 | void *data, int event) |
| 76 | { |
| 77 | static const struct { |
| 78 | const char *name; |
| 79 | int val; |
| 80 | } flows[] = { |
| 81 | {"None", SER_FLOW_NONE}, |
| 82 | {"XON/XOFF", SER_FLOW_XONXOFF}, |
| 83 | {"RTS/CTS", SER_FLOW_RTSCTS}, |
| 84 | {"DSR/DTR", SER_FLOW_DSRDTR}, |
| 85 | }; |
| 86 | int mask = ctrl->listbox.context.i; |
| 87 | int i, j; |
| 88 | Conf *conf = (Conf *)data; |
| 89 | |
| 90 | if (event == EVENT_REFRESH) { |
| 91 | /* Fetching this once at the start of the function ensures we |
| 92 | * remember what the right value is supposed to be when |
| 93 | * operations below cause reentrant calls to this function. */ |
| 94 | int oldflow = conf_get_int(conf, CONF_serflow); |
| 95 | |
| 96 | dlg_update_start(ctrl, dlg); |
| 97 | dlg_listbox_clear(ctrl, dlg); |
| 98 | for (i = 0; i < lenof(flows); i++) { |
| 99 | if (mask & (1 << i)) |
| 100 | dlg_listbox_addwithid(ctrl, dlg, flows[i].name, flows[i].val); |
| 101 | } |
| 102 | for (i = j = 0; i < lenof(flows); i++) { |
| 103 | if (mask & (1 << i)) { |
| 104 | if (oldflow == flows[i].val) { |
| 105 | dlg_listbox_select(ctrl, dlg, j); |
| 106 | break; |
| 107 | } |
| 108 | j++; |
| 109 | } |
| 110 | } |
| 111 | if (i == lenof(flows)) { /* an unsupported setting was chosen */ |
| 112 | dlg_listbox_select(ctrl, dlg, 0); |
| 113 | oldflow = SER_FLOW_NONE; |
| 114 | } |
| 115 | dlg_update_done(ctrl, dlg); |
| 116 | conf_set_int(conf, CONF_serflow, oldflow);/* restore */ |
| 117 | } else if (event == EVENT_SELCHANGE) { |
| 118 | int i = dlg_listbox_index(ctrl, dlg); |
| 119 | if (i < 0) |
| 120 | i = SER_FLOW_NONE; |
| 121 | else |
| 122 | i = dlg_listbox_getid(ctrl, dlg, i); |
| 123 | conf_set_int(conf, CONF_serflow, i); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | void ser_setup_config_box(struct controlbox *b, int midsession, |
| 128 | int parity_mask, int flow_mask) |
| 129 | { |
| 130 | struct controlset *s; |
| 131 | union control *c; |
| 132 | |
| 133 | if (!midsession) { |
| 134 | int i; |
| 135 | extern void config_protocolbuttons_handler(union control *, void *, |
| 136 | void *, int); |
| 137 | |
| 138 | /* |
| 139 | * Add the serial back end to the protocols list at the |
| 140 | * top of the config box. |
| 141 | */ |
| 142 | s = ctrl_getset(b, "Session", "hostport", |
| 143 | "Specify the destination you want to connect to"); |
| 144 | |
| 145 | for (i = 0; i < s->ncontrols; i++) { |
| 146 | c = s->ctrls[i]; |
| 147 | if (c->generic.type == CTRL_RADIO && |
| 148 | c->generic.handler == config_protocolbuttons_handler) { |
| 149 | c->radio.nbuttons++; |
| 150 | c->radio.ncolumns++; |
| 151 | c->radio.buttons = |
| 152 | sresize(c->radio.buttons, c->radio.nbuttons, char *); |
| 153 | c->radio.buttons[c->radio.nbuttons-1] = |
| 154 | dupstr("Serial"); |
| 155 | c->radio.buttondata = |
| 156 | sresize(c->radio.buttondata, c->radio.nbuttons, intorptr); |
| 157 | c->radio.buttondata[c->radio.nbuttons-1] = I(PROT_SERIAL); |
| 158 | if (c->radio.shortcuts) { |
| 159 | c->radio.shortcuts = |
| 160 | sresize(c->radio.shortcuts, c->radio.nbuttons, char); |
| 161 | c->radio.shortcuts[c->radio.nbuttons-1] = 'r'; |
| 162 | } |
| 163 | } |
| 164 | } |
| 165 | } |
| 166 | |
| 167 | /* |
| 168 | * Entirely new Connection/Serial panel for serial port |
| 169 | * configuration. |
| 170 | */ |
| 171 | ctrl_settitle(b, "Connection/Serial", |
| 172 | "Options controlling local serial lines"); |
| 173 | |
| 174 | if (!midsession) { |
| 175 | /* |
| 176 | * We don't permit switching to a different serial port in |
| 177 | * midflight, although we do allow all other |
| 178 | * reconfiguration. |
| 179 | */ |
| 180 | s = ctrl_getset(b, "Connection/Serial", "serline", |
| 181 | "Select a serial line"); |
| 182 | ctrl_editbox(s, "Serial line to connect to", 'l', 40, |
| 183 | HELPCTX(serial_line), |
| 184 | conf_editbox_handler, I(CONF_serline), I(1)); |
| 185 | } |
| 186 | |
| 187 | s = ctrl_getset(b, "Connection/Serial", "sercfg", "Configure the serial line"); |
| 188 | ctrl_editbox(s, "Speed (baud)", 's', 40, |
| 189 | HELPCTX(serial_speed), |
| 190 | conf_editbox_handler, I(CONF_serspeed), I(-1)); |
| 191 | ctrl_editbox(s, "Data bits", 'b', 40, |
| 192 | HELPCTX(serial_databits), |
| 193 | conf_editbox_handler, I(CONF_serdatabits), I(-1)); |
| 194 | /* |
| 195 | * Stop bits come in units of one half. |
| 196 | */ |
| 197 | ctrl_editbox(s, "Stop bits", 't', 40, |
| 198 | HELPCTX(serial_stopbits), |
| 199 | conf_editbox_handler, I(CONF_serstopbits), I(-2)); |
| 200 | ctrl_droplist(s, "Parity", 'p', 40, |
| 201 | HELPCTX(serial_parity), |
| 202 | serial_parity_handler, I(parity_mask)); |
| 203 | ctrl_droplist(s, "Flow control", 'f', 40, |
| 204 | HELPCTX(serial_flow), |
| 205 | serial_flow_handler, I(flow_mask)); |
| 206 | } |