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tools: atrf-id option -s to retrieve driver spec, with necessary infrastructure

- include/atrf.h (atrf_driver_spec), lib/atrf.c (atrf_driver_spec):
  new function to retrieve the local or remote/final driver spec
- lib/atrf.c (struct atrf_dsc, atrf_open, atrf_close): record the local
  driver spec
- lib/driver.h (struct atrf_driver): new driver function "driver_spec"
  to retrieve the driver spec
- lib/atnet.c (struct atnet_dsc, atnet_open, atnet_close): maintain a
  cache for the driver spec
- lib/atnet.c (atnet_driver_spec, atnet_driver): added support for the
  "driver_spec" function
- atrf-proxy/PROTOCOL, atrf-proxy/atrf-proxy.c (cmd_zero): added command
  SPEC to retrieve the (final) driver spec
- atrf-id/atrf-id.c (usage, main): added option -s to retrieve the
  driver spec. One -s retrieves the local spec, -s -s the remote/final.
This commit is contained in:
Werner Almesberger 2011-04-20 08:58:17 -03:00
parent 4fa909debc
commit 2961482cac
7 changed files with 84 additions and 3 deletions

View File

@ -158,7 +158,12 @@ static void show_info(struct atrf_dsc *dsc)
static void usage(const char *name)
{
fprintf(stderr, "usage: %s [-d driver[:arg]]\n", name);
fprintf(stderr,
"usage: %s [-d driver[:arg]] [-s [-s]]\n\n"
" -d driver[:arg] use the specified driver (default: %s)\n"
" -s print only the local driver specification\n"
" -s -s print only the remote driver specification\n"
, name, atrf_default_driver_name());
exit(1);
}
@ -167,13 +172,17 @@ int main(int argc, char *const *argv)
{
const char *driver = NULL;
struct atrf_dsc *dsc;
int spec_only = 0;
int c;
while ((c = getopt(argc, argv, "d:")) != EOF)
while ((c = getopt(argc, argv, "d:s")) != EOF)
switch (c) {
case 'd':
driver = optarg;
break;
case 's':
spec_only++;
break;
default:
usage(*argv);
}
@ -184,7 +193,18 @@ int main(int argc, char *const *argv)
if (!dsc)
return 1;
show_info(dsc);
if (spec_only) {
const char *spec = atrf_driver_spec(dsc, spec_only > 1);
if (spec)
printf("%s\n", spec);
else {
fprintf(stderr, "can't obtain specification\n");
exit(1);
}
} else {
show_info(dsc);
}
atrf_close(dsc);

View File

@ -8,6 +8,10 @@ Messages
+[greeting]
-message
SPEC
+driver_spec
-message
RESET
+[comment]
-message

View File

@ -151,6 +151,15 @@ static int cmd_zero(struct atrf_dsc *dsc, struct netio *netio, const char *cmd)
{
int res;
if (!strcasecmp(cmd, "spec")) {
const char *spec = atrf_driver_spec(dsc, 1);
if (spec)
return netio_printf(netio, "+%s\n", spec);
else
return netio_printf(netio,
"-can't obtain specification\n");
}
if (!strcasecmp(cmd, "reset")) {
atrf_reset(dsc);
return netio_printf(netio, "+\n");

View File

@ -32,6 +32,7 @@ void *atrf_ben_regs(struct atrf_dsc *dsc); /* hack for atrf-xtal */
const char *atrf_default_driver_name(void);
struct atrf_dsc *atrf_open(const char *spec);
void atrf_close(struct atrf_dsc *dsc);
const char *atrf_driver_spec(struct atrf_dsc *dsc, int last);
int atrf_error(struct atrf_dsc *dsc);
int atrf_clear_error(struct atrf_dsc *dsc);

View File

@ -31,6 +31,7 @@
struct atnet_dsc {
struct netio *netio;
int error;
char *spec;
char reply[1000];
};
@ -192,6 +193,7 @@ static void *atnet_open(const char *arg)
}
dsc->error = 0;
dsc->spec = NULL;
*dsc->reply = 0;
return dsc;
@ -203,6 +205,28 @@ static void atnet_close(void *handle)
struct atnet_dsc *dsc = handle;
netio_close(dsc->netio);
free(dsc->spec);
}
/* ----- driver specification ---------------------------------------------- */
static const char *atnet_driver_spec(void *handle)
{
struct atnet_dsc *dsc = handle;
if (dialog(dsc, "SPEC") < 0) {
dsc->error = 1;
return NULL;
}
free(dsc->spec);
dsc->spec = strdup(dsc->reply+1);
if (!dsc->spec) {
perror("strdup");
exit(1);
}
return dsc->spec;
}
@ -421,6 +445,7 @@ struct atrf_driver atnet_driver = {
.name = "net",
.open = atnet_open,
.close = atnet_close,
.driver_spec = atnet_driver_spec,
.error = atnet_error,
.clear_error = atnet_clear_error,
.reset = atnet_reset,

View File

@ -24,6 +24,7 @@
struct atrf_dsc {
const struct atrf_driver *driver;
void *handle;
char *spec;
enum atrf_chip_id chip_id;
};
@ -164,6 +165,15 @@ struct atrf_dsc *atrf_open(const char *spec)
}
dsc->driver = driver;
dsc->handle = handle;
if (spec) {
dsc->spec = strdup(spec);
if (!dsc->spec) {
perror("strdup");
exit(1);
}
} else {
dsc->spec= NULL;
}
dsc->chip_id = identify(dsc);
return dsc;
}
@ -173,10 +183,21 @@ void atrf_close(struct atrf_dsc *dsc)
{
if (dsc->driver->close)
dsc->driver->close(dsc->handle);
free(dsc->spec);
free(dsc);
}
const char *atrf_driver_spec(struct atrf_dsc *dsc, int last)
{
if (!dsc->spec)
return dsc->driver->name;
if (!last || !dsc->driver->driver_spec)
return dsc->spec;
return dsc->driver->driver_spec(dsc->handle);
}
void atrf_reset(struct atrf_dsc *dsc)
{
if (dsc->driver->reset)

View File

@ -21,6 +21,7 @@ struct atrf_driver {
const char *name;
void *(*open)(const char *arg);
void (*close)(void *dsc);
const char *(*driver_spec)(void *dsc);
int (*error)(void *dsc);
int (*clear_error)(void *dsc);
void (*reset)(void *dsc);