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Autodetect the correct layout at runtime.

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This commit is contained in:
Jef Driesen 2010-03-15 11:08:40 +00:00
parent 322577ab8c
commit 419d5a55d5
3 changed files with 34 additions and 1 deletions
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12
src/oceanic_common.c
View File

@ -82,6 +82,18 @@ get_profile_last (const unsigned char data[], const oceanic_common_layout_t *lay
}
int
oceanic_common_match (const unsigned char *pattern, const unsigned char *string, unsigned int n)
{
for (unsigned int i = 0; i < n; ++i, ++pattern, ++string) {
if (*pattern != '\0' && *pattern != *string)
return 0;
}
return 1;
}
void
oceanic_common_device_init (oceanic_common_device_t *device, const device_backend_t *backend)
{

3
src/oceanic_common.h
View File

@ -57,6 +57,9 @@ typedef struct oceanic_common_device_t {
unsigned int multipage;
} oceanic_common_device_t;
int
oceanic_common_match (const unsigned char *pattern, const unsigned char *string, unsigned int n);
void
oceanic_common_device_init (oceanic_common_device_t *device, const device_backend_t *backend);

20
src/oceanic_vtpro.c
View File

@ -64,6 +64,9 @@ static const device_backend_t oceanic_vtpro_device_backend = {
oceanic_vtpro_device_close /* close */
};
static const unsigned char oceanic_vtpro_version[] = "VTPRO r\0\0 256K";
static const unsigned char oceanic_wisdom_version[] = "WISDOM r\0\0 256K";
static const oceanic_common_layout_t oceanic_vtpro_layout = {
0x8000, /* memsize */
0x0000, /* cf_devinfo */
@ -75,6 +78,16 @@ static const oceanic_common_layout_t oceanic_vtpro_layout = {
0 /* mode */
};
static const oceanic_common_layout_t oceanic_wisdom_layout = {
0x8000, /* memsize */
0x0000, /* cf_devinfo */
0x0040, /* cf_pointers */
0x03D0, /* rb_logbook_begin */
0x05D0, /* rb_logbook_end */
0x05D0, /* rb_profile_begin */
0x8000, /* rb_profile_end */
0 /* mode */
};
static int
device_is_oceanic_vtpro (device_t *abstract)
@ -237,7 +250,6 @@ oceanic_vtpro_device_open (device_t **out, const char* name)
oceanic_common_device_init (&device->base, &oceanic_vtpro_device_backend);
// Override the base class values.
device->base.layout = &oceanic_vtpro_layout;
device->base.multipage = MULTIPAGE;
// Set the default values.
@ -312,6 +324,12 @@ oceanic_vtpro_device_open (device_t **out, const char* name)
return status;
}
// Override the base class values.
if (oceanic_common_match (oceanic_wisdom_version, device->version, sizeof (device->version)))
device->base.layout = &oceanic_wisdom_layout;
else
device->base.layout = &oceanic_vtpro_layout;
*out = (device_t*) device;
return DEVICE_STATUS_SUCCESS;