static uint16_t
ptp_ptpip_event (PTPParams* params, PTPContainer* event, int wait)
{
fd_set infds;
struct timeval timeout;
int ret;
unsigned char* data = NULL;
PTPIPHeader hdr;
int n;
while (1) {
FD_ZERO(&infds);
FD_SET(params->evtfd, &infds);
timeout.tv_sec = 0;
if (wait == PTP_EVENT_CHECK_FAST)
timeout.tv_usec = 1;
else
timeout.tv_usec = 1000; /* 1/1000 second .. perhaps wait longer? */
ret = select (params->evtfd+1, &infds, NULL, NULL, &timeout);
if (1 != ret) {
if (-1 == ret) {
gp_log (GP_LOG_DEBUG,"ptpip/event", "select returned error, errno is %d", errno);
return PTP_ERROR_IO;
}
return PTP_ERROR_TIMEOUT;
}
ret = ptp_ptpip_evt_read (params, &hdr, &data);
if (ret != PTP_RC_OK)
return ret;
gp_log (GP_LOG_DEBUG,"ptpip/event", "hdr type %d, length %d", hdr.type, hdr.length);
if (dtoh32(hdr.type) == PTPIP_EVENT) {
break;
}
/* TODO: Handle cancel transaction and ping/pong
* If not PTPIP_EVENT, process it and wait for next PTPIP_EVENT
*/
gp_log (GP_LOG_ERROR, "ptpip/event", "unknown/unhandled event type %d", dtoh32(hdr.type));
}
event->Code = dtoh16a(&data[ptpip_event_code]);
event->Transaction_ID = dtoh32a(&data[ptpip_event_transid]);
n = (dtoh32(hdr.length) - sizeof(hdr) - ptpip_event_param1)/sizeof(uint32_t);
switch (n) {
case 3: event->Param3 = dtoh32a(&data[ptpip_event_param3]);
case 2: event->Param2 = dtoh32a(&data[ptpip_event_param2]);
case 1: event->Param1 = dtoh32a(&data[ptpip_event_param1]);
case 0: break;
default:
gp_log( GP_LOG_ERROR, "ptpip/event", "response got %d parameters?", n);
break;
}
free (data);
return PTP_RC_OK;
}
static uint16_t
ptp_ptpip_init_event_ack (PTPParams* params)
{
PTPIPHeader hdr;
unsigned char *data = NULL;
uint16_t ret;
ret = ptp_ptpip_evt_read (params, &hdr, &data);
if (ret != PTP_RC_OK)
return ret;
free (data);
if (hdr.type != dtoh32(PTPIP_INIT_EVENT_ACK)) {
gp_log (GP_LOG_ERROR, "ptpip", "bad type returned %d\n", htod32(hdr.type));
return PTP_RC_GeneralError;
}
return PTP_RC_OK;
}
static inline uint16_t
ptp_ptpip_event(PTPParams *params, PTPContainer *event, int wait)
{
fd_set infds;
struct timeval timeout;
int ret;
unsigned char *data = NULL;
PTPIPHeader hdr;
int n;
while (1)
{
if (wait == PTP_EVENT_CHECK_FAST)
{
FD_ZERO(&infds);
FD_SET(params->evtfd, &infds);
timeout.tv_sec = 0;
timeout.tv_usec = 1;
if (1 != select(params->evtfd+1, &infds, NULL, NULL, &timeout))
return PTP_RC_OK;
}
ret = ptp_ptpip_evt_read(params, &hdr, &data);
if (ret != PTP_RC_OK)
return ret;
VitaMTP_Log(VitaMTP_DEBUG,"ptpip/event: hdr type %d, length %d\n", hdr.type, hdr.length);
if (dtoh32(hdr.type) == PTPIP_EVENT)
{
break;
}
// TODO: Handle cancel transaction and ping/pong
VitaMTP_Log(VitaMTP_ERROR, "ptpip/event: unknown/unhandled event type %d\n", hdr.type);
}
event->Code = dtoh16a(&data[ptpip_event_code]);
event->Transaction_ID = dtoh32a(&data[ptpip_event_transid]);
n = (dtoh32(hdr.length) - sizeof(hdr) - ptpip_event_param1)/sizeof(uint32_t);
switch (n)
{
case 3:
event->Param3 = dtoh32a(&data[ptpip_event_param3]);
case 2:
event->Param2 = dtoh32a(&data[ptpip_event_param2]);
case 1:
event->Param1 = dtoh32a(&data[ptpip_event_param1]);
case 0:
break;
default:
VitaMTP_Log(VitaMTP_ERROR, "ptpip/event: response got %d parameters?\n", n);
break;
}
free(data);
return PTP_RC_OK;
}