/* USB (low priority) interrupt */
void usb_lp_isr(void)
{
u16 mask;
u16 status;
int ep_id;
u16 trans;
/* Interrupt mask */
mask = usbdevfs_get_interrupt_mask(USBDEVFS_CORRECT_TRANSFER |
USBDEVFS_ERROR | USBDEVFS_RESET |
USBDEVFS_SOF);
if (!mask)
return;
/* Interrupt status */
status = usbdevfs_get_interrupt_status(USBDEVFS_CORRECT_TRANSFER |
USBDEVFS_ERROR |
USBDEVFS_RESET |
USBDEVFS_SOF |
USBDEVFS_DIR | USBDEVFS_EP_ID);
if (!(status & (USBDEVFS_CORRECT_TRANSFER | USBDEVFS_ERROR |
USBDEVFS_RESET | USBDEVFS_SOF)))
return;
/* Start of frame */
if (mask & status & USBDEVFS_SOF) {
sof();
/* Clear interrupt. */
usbdevfs_clear_interrupt(USBDEVFS_SOF);
}
/* Correct transfer */
if (mask & status & USBDEVFS_CORRECT_TRANSFER) {
ep_id = status & USBDEVFS_EP_ID;
trans = usbdevfs_get_ep_status(ep_id, USBDEVFS_RX |
USBDEVFS_TX | USBDEVFS_SETUP);
/* Rx (OUT/SETUP transaction) */
if ((status & USBDEVFS_DIR) && (trans & USBDEVFS_RX))
rx_packet(ep_id, trans & USBDEVFS_SETUP);
/* Tx (IN transaction) */
if (!(status & USBDEVFS_DIR) && (trans & USBDEVFS_TX))
tx_packet(ep_id);
}
/* Error */
if (mask & status & USBDEVFS_ERROR) {
usb_error++;
/* Clear interrupt. */
usbdevfs_clear_interrupt(USBDEVFS_ERROR);
}
/* USB RESET */
if (mask & status & USBDEVFS_RESET) {
usb_reset();
/* Clear interrupt. */
usbdevfs_clear_interrupt(USBDEVFS_RESET);
}
}
void adapter_interrupt(struct sdio_func *func)
{
struct net_adapter *adapter = sdio_get_drvdata(func);
int intrd = 0;
struct buffer_descriptor *bufdsc;
wake_lock_timeout(&adapter->pdata->g_cfg->wimax_rxtx_lock, 0.2 * HZ);
/* read interrupt identification register and clear the interrupt */
intrd = sdio_readb(func, SDIO_INT_STATUS_REG, NULL);
sdio_writeb(func, intrd, SDIO_INT_STATUS_CLR_REG, NULL);
if (likely(intrd & SDIO_INT_DATA_READY)) {
bufdsc = rx_packet(adapter);
if (unlikely(!bufdsc))
return;
spin_lock(&adapter->recv_lock);
list_add_tail(&bufdsc->list, &adapter->q_recv);
spin_unlock(&adapter->recv_lock);
schedule_work(&adapter->receive_work);
} else if (unlikely(intrd & SDIO_INT_ERROR)) {
adapter->netstats.rx_errors++;
pr_err("%s intrd = SDIO_INT_ERROR occurred",
__func__);
}
}
void main(void) {
volatile packet_t *p;
volatile uint8_t t=20;
uint8_t chan;
char c;
gpio_data(0);
gpio_pad_dir_set( 1ULL << LED );
/* read from the data register instead of the pad */
/* this is needed because the led clamps the voltage low */
gpio_data_sel( 1ULL << LED);
/* trim the reference osc. to 24MHz */
trim_xtal();
uart_init(UART1, 115200);
vreg_init();
maca_init();
/* sets up tx_on, should be a board specific item */
*GPIO_FUNC_SEL2 = (0x01 << ((44-16*2)*2));
gpio_pad_dir_set( 1ULL << 44 );
set_power(0x0f); /* 0dbm */
chan = 0;
set_channel(chan); /* channel 11 */
*MACA_MACPANID = 0xaaaa;
*MACA_MAC16ADDR = 0x1111;
*MACA_TXACKDELAY = 68; /* 68 puts the tx ack at about the correct spot */
set_prm_mode(AUTOACK);
print_welcome("rftest-rx");
while(1) {
/* call check_maca() periodically --- this works around */
/* a few lockup conditions */
check_maca();
if((p = rx_packet())) {
/* print and free the packet */
printf("autoack-rx --- ");
print_packet(p);
maca_free_packet(p);
}
if(uart1_can_get()) {
c = uart1_getc();
if(c == 'z') t++;
if(c == 'x') t--;
*MACA_TXACKDELAY = t;
printf("tx ack delay: %d\n\r", t);
}
}
}
void main(void) {
volatile packet_t *p;
char c;
uint16_t r=30; /* start reception 100us before ack should arrive */
uint16_t end=180; /* 750 us receive window*/
/* trim the reference osc. to 24MHz */
trim_xtal();
uart_init(UART1, 115200);
vreg_init();
maca_init();
set_channel(0); /* channel 11 */
// set_power(0x0f); /* 0xf = -1dbm, see 3-22 */
// set_power(0x11); /* 0x11 = 3dbm, see 3-22 */
set_power(0x12); /* 0x12 is the highest, not documented */
/* sets up tx_on, should be a board specific item */
GPIO->FUNC_SEL_44 = 1;
GPIO->PAD_DIR_SET_44 = 1;
GPIO->FUNC_SEL_45 = 2;
GPIO->PAD_DIR_SET_45 = 1;
*MACA_RXACKDELAY = r;
printf("rx warmup: %d\n\r", (int)(*MACA_WARMUP & 0xfff));
*MACA_RXEND = end;
printf("rx end: %d\n\r", (int)(*MACA_RXEND & 0xfff));
set_prm_mode(AUTOACK);
print_welcome("rftest-tx");
while(1) {
/* call check_maca() periodically --- this works around */
/* a few lockup conditions */
check_maca();
while((p = rx_packet())) {
if(p) {
printf("RX: ");
print_packet(p);
free_packet(p);
}
}
if(uart1_can_get()) {
c = uart1_getc();
switch(c) {
case 'z':
r++;
if(r > 4095) { r = 0; }
*MACA_RXACKDELAY = r;
printf("rx ack delay: %d\n\r", r);
break;
case 'x':
if(r == 0) { r = 4095; } else { r--; }
*MACA_RXACKDELAY = r;
printf("rx ack delay: %d\n\r", r);
break;
case 'q':
end++;
if(r > 4095) { r = 0; }
*MACA_RXEND = end;
printf("rx end: %d\n\r", end);
break;
case 'w':
end--;
if(r == 0) { r = 4095; } else { r--; }
*MACA_RXEND = end;
printf("rx end: %d\n\r", end);
break;
default:
p = get_free_packet();
if(p) {
fill_packet(p);
printf("autoack-tx --- ");
print_packet(p);
tx_packet(p);
}
break;
}
}
}
}
void main(void) {
volatile packet_t *p;
#ifdef CARRIER_SENSE
volatile uint32_t i;
#endif
uint16_t r=30; /* start reception 100us before ack should arrive */
uint16_t end=180; /* 750 us receive window*/
/* trim the reference osc. to 24MHz */
trim_xtal();
uart_init(INC, MOD, SAMP);
vreg_init();
maca_init();
///* Setup the timer */
*TMR_ENBL = 0; /* tmrs reset to enabled */
*TMR0_SCTRL = 0;
*TMR0_LOAD = 0; /* reload to zero */
*TMR0_COMP_UP = 18750; /* trigger a reload at the end */
*TMR0_CMPLD1 = 18750; /* compare 1 triggered reload level, 10HZ maybe? */
*TMR0_CNTR = 0; /* reset count register */
*TMR0_CTRL = (COUNT_MODE<<13) | (PRIME_SRC<<9) | (SEC_SRC<<7) | (ONCE<<6) | (LEN<<5) | (DIR<<4) | (CO_INIT<<3) | (OUT_MODE);
*TMR_ENBL = 0xf; /* enable all the timers --- why not? */
set_channel(CHANNEL); /* channel 11 */
set_power(0x12); /* 0x12 is the highest, not documented */
/* sets up tx_on, should be a board specific item */
GPIO->FUNC_SEL_44 = 1;
GPIO->PAD_DIR_SET_44 = 1;
GPIO->FUNC_SEL_45 = 2;
GPIO->PAD_DIR_SET_45 = 1;
*MACA_RXACKDELAY = r;
*MACA_RXEND = end;
set_prm_mode(AUTOACK);
while(1) {
if((*TMR0_SCTRL >> 15) != 0)
tick();
/* call check_maca() periodically --- this works around */
/* a few lockup conditions */
check_maca();
while((p = rx_packet())) {
if(p) free_packet(p);
}
p = get_free_packet();
if(p) {
fill_packet(p);
#ifdef CARRIER_SENSE
for(i=0; i<POWER_DELAY; i++) {continue;}
while(get_power()>74) {}
#endif
#ifdef BLOCKING_TX
blocking_tx_packet(p);
#else
tx_packet(p);
#endif
current_pkts++;
#if defined(RANDOM_WAIT_TIME) || defined(FIXED_WAIT)
random_wait();
#endif
}
}
}
int main(int argc, char **argv) {
//rcpDebugEnable();
// initialize shared memory
rcp_init(RCP_PROC_DNS);
RcpPkt *pkt;
pkt = malloc(sizeof(RcpPkt) + RCP_PKT_DATA_LEN);
if (pkt == NULL) {
fprintf(stderr, "Error: process %s, cannot allocate memory, exiting...\n", rcpGetProcName());
exit(1);
}
struct stat s;
if (stat("/opt/rcp/var/log/dnsproxy_at_startup", &s) == 0)
proxy_disabled = 1;
// open sockets if necessary
if (shm->config.dns_server) {
if (proxy_disabled) {
rcpLog(muxsock, RCP_PROC_DNS, RLOG_WARNING, RLOG_FC_DNS,
"an external DNS proxy is already running on the system, RCP DNS proxy will be disabled");
}
else {
client_sock = rx_open(DNS_SERVER_PORT); // the socket open to clients listens on the server socket
if (client_sock == 0) {
fprintf(stderr, "Error: process %s, cannot open sockets, exiting...\n", rcpGetProcName());
exit(1);
}
}
}
// set the static cache entries
cache_update_static();
// drop privileges
rcpDropPriv();
// initialize request list
rq_list_init();
// receive loop
int reconnect_timer = 0;
struct timeval ts;
ts.tv_sec = 1; // 1 second
ts.tv_usec = 0;
// use this timer to speed up rx loop when the system is busy
uint32_t rcptic = rcpTic();
while (1) {
// reconnect mux socket if connection failed
if (reconnect_timer >= 10) {
// a regular reconnect will fail, this process runs with dropped privileges
// end the process and restart it again
break;
}
// set descriptors
fd_set fds;
FD_ZERO(&fds);
int maxfd = 0;
if (muxsock != 0) {
FD_SET(muxsock, &fds);
maxfd = (muxsock > maxfd)? muxsock: maxfd;
}
if (client_sock != 0) {
FD_SET(client_sock, &fds);
maxfd = (client_sock > maxfd)? client_sock: maxfd;
}
// set all server sockets
DnsReq *rq = rq_active();
while (rq) {
if (rq->sock != 0) {
FD_SET(rq->sock, &fds);
maxfd = (rq->sock > maxfd)? rq->sock: maxfd;
}
rq = rq->next;
}
// wait for data
errno = 0;
int nready = select(maxfd + 1, &fds, (fd_set *) 0, (fd_set *) 0, &ts);
if (nready < 0) {
fprintf(stderr, "Error: process %s, select nready %d, errno %d\n",
rcpGetProcName(), nready, errno);
}
else if (nready == 0) {
// watchdog
pstats->wproc++;
// muxsocket reconnect timeout
if (reconnect_timer > 0)
reconnect_timer++;
// age cache entries
cache_timer();
// age request queue entries
rq_timer();
// reset rate-limit counter
rate_limit = 0;
// reload ts
rcptic++;
if (rcpTic() > rcptic) {
// speed up the clock
ts.tv_sec = 0;
ts.tv_usec = 800000; // 0.8 seconds
pstats->select_speedup++;
}
else {
ts.tv_sec = 1; // 1 second
ts.tv_usec = 0;
}
}
// cli data
else if (muxsock != 0 && FD_ISSET(muxsock, &fds)) {
errno = 0;
int nread = recv(muxsock, pkt, sizeof(RcpPkt), 0);
if(nread < sizeof(RcpPkt) || errno != 0) {
// fprintf(stderr, "Error: process %s, muxsocket nread %d, errno %d, disconnecting...\n",
// rcpGetProcName(), nread, errno);
close(muxsock);
reconnect_timer = 1;
muxsock = 0;
continue;
}
// read the packet data
if (pkt->data_len != 0) {
nread += recv(muxsock, (unsigned char *) pkt + sizeof(RcpPkt), pkt->data_len, 0);
}
ASSERT(nread == sizeof(RcpPkt) + pkt->data_len);
// process the cli packet
if (pkt->type == RCP_PKT_TYPE_CLI && pkt->destination == RCP_PROC_DNS) {
processCli(pkt);
// forward the packet back to rcp
send(muxsock, pkt, sizeof(RcpPkt) + pkt->data_len, 0);
}
// dns updates packet
else if (pkt->type == RCP_PKT_TYPE_UPDATEDNS) {
rcpLog(muxsock, RCP_PROC_DNS, RLOG_DEBUG, RLOG_FC_IPC,
"processing DNS updates packet");
cache_update_static();
}
else
ASSERT(0);
}
// DNS packets from clients
else if (client_sock != 0 && FD_ISSET(client_sock, &fds)) {
rx_packet(client_sock);
}
// DNS packets from servers
else {
DnsReq *rq = rq_active();
while (rq) {
if (rq->sock != 0 && FD_ISSET(rq->sock, &fds)) {
rx_packet(rq->sock);
break;
}
rq = rq->next;
}
}
if (force_restart) {
rcpLog(muxsock, RCP_PROC_DNS, RLOG_NOTICE, RLOG_FC_IPC,
"process %s exiting for configuration purposes", rcpGetProcName());
if (pstats->wmonitor != 0)
pstats->wproc = pstats->wmonitor; // tigger a restart in the next monitoring cycle
pstats->no_logging = 1;
break; // exit from while(1)
}
if (force_shutdown)
break;
}
fflush(0);
sleep(1);
// close sockets
if (muxsock != 0) {
close(muxsock);
}
if (client_sock != 0) {
close(client_sock);
}
// remove cli memory
cliRemoveFunctions();
// clear request memory
rq_clear_inactive();
// remove cache memory
cache_clear();
// remove packet memory
if (pkt)
free(pkt);
return 0;
}
