git.distorted.org.uk Git - u/mdw/putty/blob - sercfg.c

   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     Config *cfg = (Config *)data;
  35
  36     if (event == EVENT_REFRESH) {
  37         dlg_update_start(ctrl, dlg);
  38         dlg_listbox_clear(ctrl, dlg);
  39         for (i = 0; i < lenof(parities); i++)  {
  40             if (mask & (1 << i))
  41                 dlg_listbox_addwithid(ctrl, dlg, parities[i].name,
  42                                       parities[i].val);
  43         }
  44         for (i = j = 0; i < lenof(parities); i++) {
  45             if (cfg->serparity == parities[i].val)
  46                 dlg_listbox_select(ctrl, dlg, j);
  47             if (mask & (1 << i))
  48                 j++;
  49         }
  50         dlg_update_done(ctrl, dlg);
  51     } else if (event == EVENT_SELCHANGE) {
  52         int i = dlg_listbox_index(ctrl, dlg);
  53         if (i < 0)
  54             i = SER_PAR_NONE;
  55         else
  56             i = dlg_listbox_getid(ctrl, dlg, i);
  57         cfg->serparity = i;
  58     }
  59 }
  60
  61 static void serial_flow_handler(union control *ctrl, void *dlg,
  62                                 void *data, int event)
  63 {
  64     static const struct {
  65         const char *name;
  66         int val;
  67     } flows[] = {
  68         {"None", SER_FLOW_NONE},
  69         {"XON/XOFF", SER_FLOW_XONXOFF},
  70         {"RTS/CTS", SER_FLOW_RTSCTS},
  71         {"DSR/DTR", SER_FLOW_DSRDTR},
  72     };
  73     int mask = ctrl->listbox.context.i;
  74     int i, j;
  75     Config *cfg = (Config *)data;
  76
  77     if (event == EVENT_REFRESH) {
  78         dlg_update_start(ctrl, dlg);
  79         dlg_listbox_clear(ctrl, dlg);
  80         for (i = 0; i < lenof(flows); i++)  {
  81             if (mask & (1 << i))
  82                 dlg_listbox_addwithid(ctrl, dlg, flows[i].name, flows[i].val);
  83         }
  84         for (i = j = 0; i < lenof(flows); i++) {
  85             if (cfg->serflow == flows[i].val)
  86                 dlg_listbox_select(ctrl, dlg, j);
  87             if (mask & (1 << i))
  88                 j++;
  89         }
  90         dlg_update_done(ctrl, dlg);
  91     } else if (event == EVENT_SELCHANGE) {
  92         int i = dlg_listbox_index(ctrl, dlg);
  93         if (i < 0)
  94             i = SER_PAR_NONE;
  95         else
  96             i = dlg_listbox_getid(ctrl, dlg, i);
  97         cfg->serflow = i;
  98     }
  99 }
 100
 101 void ser_setup_config_box(struct controlbox *b, int midsession,
 102                           int parity_mask, int flow_mask)
 103 {
 104     struct controlset *s;
 105     union control *c;
 106
 107     if (!midsession) {
 108         int i;
 109         extern void config_protocolbuttons_handler(union control *, void *,
 110                                                    void *, int);
 111
 112         /*
 113          * Add the serial back end to the protocols list at the
 114          * top of the config box.
 115          */
 116         s = ctrl_getset(b, "Session", "hostport",
 117                         "Specify the destination you want to connect to");
 118
 119         for (i = 0; i < s->ncontrols; i++) {
 120             c = s->ctrls[i];
 121             if (c->generic.type == CTRL_RADIO &&
 122                 c->generic.handler == config_protocolbuttons_handler) {
 123                 c->radio.nbuttons++;
 124                 c->radio.ncolumns++;
 125                 c->radio.buttons =
 126                     sresize(c->radio.buttons, c->radio.nbuttons, char *);
 127                 c->radio.buttons[c->radio.nbuttons-1] =
 128                     dupstr("Serial");
 129                 c->radio.buttondata =
 130                     sresize(c->radio.buttondata, c->radio.nbuttons, intorptr);
 131                 c->radio.buttondata[c->radio.nbuttons-1] = I(PROT_SERIAL);
 132                 if (c->radio.shortcuts) {
 133                     c->radio.shortcuts =
 134                         sresize(c->radio.shortcuts, c->radio.nbuttons, char);
 135                     c->radio.shortcuts[c->radio.nbuttons-1] = NO_SHORTCUT;
 136                 }
 137             }
 138         }
 139     }
 140
 141     /*
 142      * Entirely new Connection/Serial panel for serial port
 143      * configuration.
 144      */
 145     ctrl_settitle(b, "Connection/Serial",
 146                   "Options controlling local serial lines");
 147
 148     if (!midsession) {
 149         /*
 150          * We don't permit switching to a different serial port in
 151          * midflight, although we do allow all other
 152          * reconfiguration.
 153          */
 154         s = ctrl_getset(b, "Connection/Serial", "serline",
 155                         "Select a serial line");
 156         ctrl_editbox(s, "Serial line to connect to", 'l', 40,
 157                      HELPCTX(serial_line),
 158                      dlg_stdeditbox_handler, I(offsetof(Config,serline)),
 159                      I(sizeof(((Config *)0)->serline)));
 160     }
 161
 162     s = ctrl_getset(b, "Connection/Serial", "sercfg", "Configure the serial line");
 163     ctrl_editbox(s, "Speed (baud)", 's', 40,
 164                  HELPCTX(serial_speed),
 165                  dlg_stdeditbox_handler, I(offsetof(Config,serspeed)), I(-1));
 166     ctrl_editbox(s, "Data bits", 'b', 40,
 167                  HELPCTX(serial_databits),
 168                  dlg_stdeditbox_handler,I(offsetof(Config,serdatabits)),I(-1));
 169     /*
 170      * Stop bits come in units of one half.
 171      */
 172     ctrl_editbox(s, "Stop bits", 't', 40,
 173                  HELPCTX(serial_stopbits),
 174                  dlg_stdeditbox_handler,I(offsetof(Config,serstopbits)),I(-2));
 175     ctrl_droplist(s, "Parity", 'p', 40,
 176                   HELPCTX(serial_parity),
 177                   serial_parity_handler, I(parity_mask));
 178     ctrl_droplist(s, "Flow control", 'f', 40,
 179                   HELPCTX(serial_flow),
 180                   serial_flow_handler, I(flow_mask));
 181 }