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Implement the fingerprint function.

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This commit is contained in:
Jef Driesen 2009-04-10 09:20:48 +00:00
parent c1745cc535
commit 49301d1b28
1 changed files with 27 additions and 1 deletions
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28
src/oceanic_atom2.c
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@ -43,6 +43,9 @@
rc == -1 ? DEVICE_STATUS_IO : DEVICE_STATUS_TIMEOUT \
)
#define FP_OFFSET 0
#define FP_SIZE 8
#define ACK 0x5A
#define NAK 0xA5
@ -64,8 +67,10 @@
typedef struct oceanic_atom2_device_t {
device_t base;
struct serial *port;
unsigned char fingerprint[FP_SIZE];
} oceanic_atom2_device_t;
static device_status_t oceanic_atom2_device_set_fingerprint (device_t *abstract, const unsigned char data[], unsigned int size);
static device_status_t oceanic_atom2_device_version (device_t *abstract, unsigned char data[], unsigned int size);
static device_status_t oceanic_atom2_device_read (device_t *abstract, unsigned int address, unsigned char data[], unsigned int size);
static device_status_t oceanic_atom2_device_write (device_t *abstract, unsigned int address, const unsigned char data[], unsigned int size);
@ -75,7 +80,7 @@ static device_status_t oceanic_atom2_device_close (device_t *abstract);
static const device_backend_t oceanic_atom2_device_backend = {
DEVICE_TYPE_OCEANIC_ATOM2,
NULL, /* set_fingerprint */
oceanic_atom2_device_set_fingerprint, /* set_fingerprint */
NULL, /* handshake */
oceanic_atom2_device_version, /* version */
oceanic_atom2_device_read, /* read */
@ -246,6 +251,7 @@ oceanic_atom2_device_open (device_t **out, const char* name)
// Set the default values.
device->port = NULL;
memset (device->fingerprint, 0, FP_SIZE);
// Open the device.
int rc = serial_open (&device->port, name);
@ -287,6 +293,26 @@ oceanic_atom2_device_open (device_t **out, const char* name)
}
static device_status_t
oceanic_atom2_device_set_fingerprint (device_t *abstract, const unsigned char data[], unsigned int size)
{
oceanic_atom2_device_t *device = (oceanic_atom2_device_t*) abstract;
if (! device_is_oceanic_atom2 (abstract))
return DEVICE_STATUS_TYPE_MISMATCH;
if (size && size != FP_SIZE)
return DEVICE_STATUS_ERROR;
if (size)
memcpy (device->fingerprint, data, FP_SIZE);
else
memset (device->fingerprint, 0, FP_SIZE);
return DEVICE_STATUS_SUCCESS;
}
static device_status_t
oceanic_atom2_device_close (device_t *abstract)
{