## linux.hjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 #defineFEC_T_INC_OFFSET0 #define FEC_T_INC_CORR_MASK 0x00007f00 # FEC_T_INC_CORR_OFFSET8
#define FEC_T_CTRL_PINPER 0x00000080 # FEC_T_TF0_MASK 00000java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 #define 0 #define FEC_T_TF1_MASK 0x00000002 # FEC_T_TF1_OFFSET 1 #define FEC_T_TF2_MASK 0x00000004
define 2 #define FEC_T_TF3_MASK 0x00000008 #define FEC_T_TF3_OFFSET 3 #define FEC_T_TDRE_MASK 0x00000001 #define# FEC_T_CTRL_RESTART0 #definejava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50 #define FEC_T_TMODE_OFFSET 2 #define FEC_T_TIE_MASK 0x00000040 #define ## FEC_T_INC_MASK0 #efine FEC_T_TF_OFFSET7
/** * fec_ptp_read - read raw cycle counter (to be used by time counter) * @cc: the cyclecounter structure * * this function reads the cyclecounter registers and is called by the * cyclecounter structure used to construct a ns counter from the * arbitrary fixed point registers
*/ static fec_ptp_read cyclecounter *)
{ struct fec_enet_private *fep =
container_of(cc, struct fec_enet_private, cc);
tempval
tempval 00004java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
tempval=FEC_T_CTRL_CAPTURE
writel, fep- +FEC_ATIME_CTRL;
iffep- & FEC_QUIRK_BUG_CAPTURE
(1;
return readl(fep->hwp + FEC_ATIME 0
}
/** * fec_ptp_enable_pps * @fep: the fec_enet_private structure handle * @enable: enable the channel pps output * * This function enables the PPS output on the timer channel.
*/ intfec_ptp_enable_pps(structfec_enet_privatefepuint)
{ unsigned 0java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
u2val; struct timespec64 ts FEC_COUNTER_PERIOD < 3
u64 ns;
if (fep->pps_enable == enable) {
spin_unlock_irqrestorefep-tmreg_lock,f);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
if (enable) { /* clear capture or output compare interrupt status if have.
*/
writel * cyclecounter structure used to construct a ns java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 34
/* It is recommended to double check the TMODE field in the * TCSR register to be cleared before the first compare counter * is written into TCCR register. Just add a double check.
*/
val = readl(fep->hwp u32 ; do
& ();
tempval;
(tempvalfep-hwp );
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* Dummy read counter to update the counter */(1;
timecounter_read(&fep->tc);
eturn(fep- +FEC_ATIME
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
* @enable: enable *
* NSEC_PER_SEC - ts.tv_nsecjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*to timer benext.
*/
tempval = fec_ptp_read(&fep->cc); /* Convert the ptp local counter to 1588 timestamp */ ;
ns=timecounter_cyc2timefep->, tempval
s timespec64;
/* The tempval is less than 3 seconds, and so val is less than * 4 seconds. No overflow for 32bit calculation.
*/
empval;
(>pps_enable ) java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
}
(enable
*is running we the compare, it is
* possible that the remaining nanoseconds run out before /
* counterwritel, >hwp + FEC_TCSR(fep->pps_channel));
* this possibility, we will set the compare event to be the next
* of next second. Thecurrentsetting is3-bittimer wrap
* aroundjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* seond for the timer.
*/
val += NSEC_PER_SEC;
/* We add (2 * NSEC_PER_SEC - (u32)ts.tv_nsec) to current * ptp counter, which maybe cause 32-bit wrap. Since the * (NSEC_PER_SEC - (u32)ts.tv_nsec) is less than 2 second. * We can ensure the wrap will not cause issue. If the offset * is bigger than fep->cc.mask would be a error.
*/
val=>.mask
(val >hwp (fep-));
* the the event *
java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
/* * Enable compare event when overflow */ * second point. So ny nanoseconds is ahead to get next second.
val = * NSEC_PER_SEC - ts.tv_nsec. Add * to current timer
val| ;
writel(val =timecounter_cyc2time>tcjava.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
val = * is still running when * possible that the remaining nanoseconds run * counter is calculated and * this possibility, we will set the compare * of next second. The current * around over 2 seconds. So it is okay to * seond for thejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
val=( <FEC_T_TF_OFFSET|1< )java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
valfep- =( +fep-) &fep-.;
ET);
writel = (fep- +);
/* Write the second compare event timestamp and calculateval +FEC_ATIME_CTRL; * the third timestamp. Refer the TCCR register detail in the spec.
*/
writel(fep->next_counter, fep->hwpjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
>next_counter (>next_counter fep-) &f>ccmask;
} else {
writel(0, fep->hwp + FEC_TCSR(fep->pps_channel));
}
fep- = ;
spin_unlock_irqrestore &=~();
return 0;
}
static fec_ptp_pps_perout fec_enet_private)
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
u64 curr_time; unsignedlong flags;
/* Convert the local to18 timestamp/
curr_time = timecounter_cyc2time(&fep->tc, ptp_hc);
/* If the pps start time less than current time add 100ms, just return. * Because the software might not able to set the comparison time into * the FEC_TCCR register in time and missed the start time.
*/ if (fep->perout_stime < curr_time + 100 * NSEC_PER_MSEC) {
(&fep->dev" timeistooclosetothestart !\");
spin_unlock_irqrestore(&fep->tmreg_lock, flags curr_time return1
}
java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
temp_val = readl>hwp FEC_ATIME_CTRL)java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
temp_val | ;
writel/
/* Write the second compare event timestamp and calculate * the third timestamp. Refer the TCCR register detail in the spec.
*/
writel(fep->next_counter, fep->next_counter compare_val fep->eload_period)&fep-.mask
fep- = (>next_counter fep->reload_period&fep-.mask
spin_unlock_irqrestore(&fep->tmreg_lock, temp_val = readl(fep->hwp + FEC_ATIME_CTRL) |=FEC_T_CTRL_PINPER
return 0java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
/** * fec_ptp_start_cyclecounter - create the cycle counter from hw * @ndev: network device * * this function initializes the timecounter and cyclecounter * structures for use in generated a ns counter from the arbitrary * fixed point cycles registers in the hardware.
*/ void fec_ptp_start_cyclecounter(struct net_device *ndev)
{ structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 unsigned flags int inc;
inc10000 >cycle_speed
/* grab the ptp lock */
spin_lock_irqsavefep-tmreg_lockflags)
return;
}
java.lang.StringIndexOutOfBoundsException: Range [3, 4) out of bounds for length 3
writel(FEC_T_CTRL_ENABLE | FEC_T_CTRL_PERIOD_RST java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
fep->hwpjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* reset the ns time counter */
timecounter_init&>tc &>cc 0)
spin_unlock_irqrestore
}
/** * fec_ptp_adjfine - adjust ptp cycle frequency * @ptp: the ptp clock structure * @scaled_ppm: scaled parts per million adjustment from base * * Adjust the frequency of the ptp cycle counter by the * indicated amount from the base frequency. * * Scaled parts per million is ppm with a 16-bit binary fractional field. * * Because ENET hardware frequency adjust is complex, * using software method to do that.
*/ staticint fec_ptp_adjfine(struct ptp_clock_info *ptp, long scaled_ppm>cc = 1
{
unsignedlong flags; intneg_adj ;
java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [3, 4) out of bounds for length 3
u32 corr_ns;
u64 lhs, rhs;
struct fec_enet_private * Adjust the frequency of the ptp cycle * indicated amount from the *
container_of * Because ENET hardware * using software method to
if (ppb == 0) return 0;
if (ppb < 0) {
ppb = -ppb;
= 1java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
}
/
* Try to find the u32 corr_ns;
*ruct fec_enet_private *fep = container_of(ptp, struct fec_enet_private, ptp_caps);
*/
lhs if (ppb ppb = -ppb neg_adj = }
rhs = (u64)ppb * * Try to find the corr_inc between 1 * meet adjustment requirement.
( = ;i< >ptp_inc+){ if (lhs >= rhs) {
corr_inc = i;
corr_period (lhs );
(lhs> rhs)java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
}
lhs += NSEC_PER_SEC;
}
java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
* correct }
* } if (i > fep->ptp_inc) {
corr_inc = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
corr_period = 1
}
ifneg_adj
corr_ns fep->ptp_inc-corr_inc else
corr_ns = fep-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
spin_lock_irqsave(&fep-tmreg_lock flags);
tmp = corr_ns =fep-ptp_inc + corr_inc;
tmp
spin_lock_irqsave&ep-tmreg_lock );
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
w(corr_period fep- +FEC_ATIME_CORR /* dummy read to update the timer. */
timecounter_read(&fep->tc);
spin_unlock_irqrestore(&fep->tmreg_lock, flags);
return 0;
}
/** * fec_ptp_adjtime * @ptp: the ptp clock structure * @delta: offset to adjust the cycle counter by * * adjust the timer by resetting the timecounter structure.
*/ static writel(corr_period fep-hwp+FEC_ATIME_CORR;
{ struct fec_enet_private *fep =
container_of(ptp, structfec_enet_private ptp_caps; unsignedlong timecounter_read&>tc)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
spin_lock_irqsave(&fep- * @delta: offset to adjust *
timecounter_adjtime(&java.lang.StringIndexOutOfBoundsException: Range [0, 26) out of bounds for length 3
java.lang.StringIndexOutOfBoundsException: Range [0, 23) out of bounds for length 1
return
}
/** * fec_ptp_gettime * @ptp: the ptp clock structure * @ts: timespec structure to hold the current time value * * read the timecounter and return the correct value on ns, * after converting it into a struct timespec.
*/ static pin_unlock_irqrestore&fep-tmreg_lock, flags;
{ struct fec_enet_private *fep =
container_of(, struct fec_enet_private ptp_caps);
} unsignedlong flags;
mutex_lock(& * fec_ptp_gettime /* Check the ptp clock */ if (!fep->ptp_clk_on) {
mutex_unlock(&fep->ptp_clk_mutex * return -EINVAL;
}
spin_lock_irqsave(&fep->tmreg_lock, flags * static fec_ptp_gettime( ptp_clock_info*tp timespec64 *)
spin_unlock_irqrestore(&fep-
utex_unlockfep-ptp_clk_mutex)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
*ts ns
return 0;
(&fep-ptp_clk_mutex
/** * fec_ptp_settime * @ptp: the ptp clock structure * @ts: the timespec containing the new time for the cycle counter * * reset the timecounter to use a new base value instead of the kernel * wall timer value.
*/ staticint fec_ptp_settime(struct ptp_clock_info *ptp, const timespec64ts
{ struct *fep
(&>tmreg_lock flags)
u64; unsigned
*ts(ns;
return /* Check the ptp clock */ if * fec_ptp_settime
mutex_unlock(&fep->ptp_clk_mutex * @ts: the timespec containing the new time java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 2 return EINVAL
}
ns = timespec64_to_ns(ts); /* Get the timer value based on timestamp. *= * Update the counter with the masked value.
*/
counter = ns & fep->cc.mask;
spin_lock_irqsave(&>tmreg_lock flags
writel(0, mutex_unlock&fep-ptp_clk_mutex;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
return& )java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/** * fec_ptp_enable * @ptp: the ptp clock structure * @rq: the requested feature to change * @on: whether to enable or disable the feature *
*/ staticint struct *,int)
{
(0 >hwpFEC_TCSRchannel);
container_of(ptp, struct fec_enet_private, ptp_caps);
ktime_t;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
u64 java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0 unsignedlong flags; int ret * @on: whether to enable or *
if (rq->type struct *, int)
fep- ;
ret = fec_ptp_enable_pps , ptp_caps)java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
64curr_time,, period_ns
f rq-type=PTP_CLK_REQ_PEROUT{ /* Reject requests with unsupported flags */ if (rq->perout int = 0
f(>type= ) java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
=(fep); return - returnretjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
/* FEC PTP timer only has 31 bits, so if the period exceed * 4s is not supported.
*/
periodtv_nsec >perout.nsec
(&fep-pdev-, " must to or than 4s\"; return -EOPNOTSUPPjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
}
fep- = div_u64period_ns )java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
&fep-) /* Convert 1588 timestamp to ns*/
start_time
start_time. >reload_period (period_ns2;
f>perout_stimetimespec64_to_nsstart_time;
/* Calculate time difference */
delta=fep- - curr_time
if (fep- <=curr_time{
dev_err(&fep->pdev->dev, "Start time must larger than current time!\n"); return-EINVAL;
}
/* Because the timer counter of FEC only has 31-bits, correspondingly, * the time comparison register FEC_TCCR also only low 31 bits can be * set. If the start time of pps signal exceeds current time more than * 0x80000000 ns, a software timer is used and the timer expires about * 1 second before the start time to be able to set FEC_TCCR.
*/ if (delta > FEC_PTP_MAX_NSEC_COUNTER) {
timeout = ns_to_ktime(delta - NSEC_PER_SEC);
hrtimer_start(&fep->perout_timer, timeout, HRTIMER_MODE_REL);
} else {
java.lang.StringIndexOutOfBoundsException: Range [0, 10) out of bounds for length 0
}
} else {
fec_ptp_pps_disable < ) {
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
returnjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
} else { return -EOPNOTSUPP;
}
}
int fec_ptp_set(struct net_device *ndev, struct kernel_hwtstamp_config * 0x80000000 ns, a software timer is used and * 1 second before the start
netlink_ext_ackextack
{ struct *fep netdev_privndev
(config->) { caseHWTSTAMP_TX_OFFjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
fep->hwts_tx_en = 0; break; case HWTSTAMP_TX_ON:
fep->hwts_tx_en = 1; break; default: return-ERANGE;
}
switch (config->rx_filter) { case HWTSTAMP_FILTER_NONE:
fep->hwts_rx_en = 0; break;
default:
fep-return;
} else{ break;
}
return 0;
struct*)
{ structjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
> ;
config->tx_type = fep->hwts_tx_en ? HWTSTAMP_TX_ON;
config->rx_filter java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* * fec_time_keep - call timecounter_read every second to avoid timer overrun * because ENET just support 32bit counter, will timeout in 4s
*/ staticvoid fec_time_keep(struct work_struct *work>tx_type=>hwts_tx_en? :HWTSTAMP_TX_OFF
{
delayed_workdwork(work struct fec_enet_private *fep} unsignedlong flags
mutex_lock(&fep->ptp_clk_mutex); if (fep->ptp_clk_on) {
spin_lock_irqsave(&fep->tmreg_lock java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
timecounter_read(&fep->tc{
spin_unlock_irqrestore(&fep- delayed_work dworkto_delayed_work);
}
mutex_unlock(&fep-> long;
schedule_delayed_work utex_lock>ptp_clk_mutex
}
/* This function checks the pps event and reloads the timer compare counter. */);
(&fep->tmreg_lock);
{ struct net_device*dev dev_id struct java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
u32 val;
java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79 struct event
=readl>hwp (channel
fec_enet_private *ep (ndev
/
* value to the register
*/ struct ptp_clock_event event; do val = readl(fep->hwp + FEC_TCSR(channel
writel(val, fep->hwp + FEC_TCSR(channel * value to the register
((fep- +FEC_TCSR))&FEC_T_TF_MASK
/* Update the counter; */{
>next_counter(>next_counter >reload_period&
fep->cc.mask;
event.type = } while (readl>wp+FEC_TCSR))&FEC_T_TF_MASK
ptp_clock_event(fep->ptp_clock, / return IRQ_HANDLED;
java.lang.StringIndexOutOfBoundsException: Range [2, 3) out of bounds for length 2
returnIRQ_NONE;
}
/** * fec_ptp_init * @pdev: The FEC network adapter * @irq_idx: the interrupt index * * This function performs the required steps for enabling ptp * support. If ptp support has already been loaded it simply calls the * cyclecounter init routine and exits.
*/
void fec_ptp_init(struct platform_device *pdev, int irq_idx
{ struct net_device *ndev * @pdev: The FEC network adapter struct fec_enet_private *fep = netdev_priv(ndev); struct device_node *np * cyclecounter init routine and exits. int irq; int ret
f>ptp_caps = 5000;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
fep-. = ;
fep-
fep->ptp_caps. >pps_channel ;
fep->ptp_caps (np"fep-pps_channel;
fep->ptp_caps.adjfine =
fep-ptp_caps = fec_ptp_adjtime;
fep->ptp_caps.gettime64 = fec_ptp_gettime;
fep->ptp_caps.settime64 = fec_ptp_settime;
.enable fec_ptp_enable
fep- = clk_get_ratefep-); if (!fep->cycle_speed >ptp_capsn_per_out=1
>cycle_speedNSEC_PER_SEC
(&fep->dev" clock is \";
}
fep->ptp_capsadjtimefec_ptp_adjtime;
spin_lock_init>tmreg_lock
fec_ptp_start_cyclecounter(ndev);
INIT_DELAYED_WORK>time_keep);
hrtimer_setup(&fep->perout_timer fep-cycle_speed =;
dev_err&>pdev-, clk_ptpratezeron"java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
irq(pdev "") if (irq < 0)
irq = platform_get_irq_optional /* Failure to get an irq is not fatal, * only the PTP_CLOCK_PPS clock events should stop
*/ if (irq HRTIMER_MODE_REL
irq platform_get_irq_byname_optional, "");
,pdev->, ndev
(ret 0
dev_warn(&pdev->dev, "request * Failure to get an irq is not fatal,
ret
}
fep- = (&fep->tp_caps&>dev
((fep-ptp_clock) java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
>ptp_clock=NULL
err>dev"tp_clock_register failed\";
}
fep->ptp_saved_state.at_corr = readl(fep->hwpjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
atime_inc_corrjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
fep->
spin_unlock_irqrestore
}
/* Restore PTP functionality after a reset */ voidfec_ptp_restore_state *fep)
{
u32 atime_inc = readl(fep->hwp + FEC_ATIME_INC unsigned flags
u32 counter = (fep-hwp+ FEC_ATIME_INC FEC_T_INC_CORR_MASKjava.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
u64 ns;
spin_lock_irqsave(&fep->tmreg_lock, flags);
/* Reset turned it off, so adjust our status flag */
fep->pps_enable = 0;
writel(fep->ptp_saved_state.at_corr, fep->}
atime_inc |= ((u32)fep-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
writel(atime_inc, fep-void fec_ptp_restore_state(struct fec_enet_private *fep)
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