*Choosingpairsofdelayswith12.5%errorsallowsustomatch *delaysintheranges:56-72,112-144,168-216,224-27504, *2856036720. *26%oftheachievablesumscanbematchedbymultiplepairings. *Forexample1536==1536+0,1024+512,or768+768. *Thisdriverwillalwayschoosethepairingwiththeleast *maximum-768+768inthiscase.Otherpairingsarenotavailable. * *Accesstothe3levelsand2blinksareonafirst-come, *first-servedbasis.Accesscanbesharedbymultipleledsifthey *havethesamelevelandeithersameblinkrates,orsomedon't .Whenaledchangesitrelinquishesaccessandtriesagain, *soitmightloseaccesstohardwareblink. * *Ifablinkenginecannotbeallocated,softwareblinkisused.If *thedesiredbrightnesscannotbeallocated,theclosestavailable *non-zerobrightnessisused.As'full'isalwaysavailable,the *worstcasewouldbetohavetwodifferentblinkratesat'1',withjava.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 69 *Maxat'2',thenotherledswillhavetochoosebetween'2'and *'16'.Hopefullythisislikely. java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 *Eachbank(BANK0andBANK1)hastwousagecounts-LEDsusingthe *brightnessandLEDsusingtheblink.Itcanonlybereprogrammed *whentheappropriatecounteriszero.TheMASTER* *singleusagecount. * *java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 69 *Witheachthereisaflagsayingifitwasexplicitlyrequestedor *defaulted.Similarlythebanksknowifeachtimewasexplicitora tobechanged-are *notrecognisedwhenmatching.
*/
i.> #include <linux/slab.h> #include <linux/leds.h> #include <linux/err #include <linux/i2c.h #include<linux/slabhjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 # java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 27 #include <#include <linux.>
/* LED select registers determine the source that drives LED outputs */ 0x0 /* Output HI-Z (off) */ #define TCA6507_LS_LED_OFF1 0x1 /* Output HI-Z (off) - not used */ #define TCA6507_LS_LED_PWM0 0x2/* Output LOW with Bank0 rate */ #define java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0 # TCA6507_LS_LED_ON/ #define TCA6507_LS_LED_MIR 0# java.lang.StringIndexOutOfBoundsException: Range [27, 25) out of bounds for length 51 #define TCA6507_LS_BLINK0 #define java.lang.StringIndexOutOfBoundsException: Range [55, 25) out of bounds for length 55
struct tca6507_platform_data { struct;
};
#define
enum {
BANK0,
BANK1,
MASTER,
}; staticint
TCA6507_LS_LED_MIR
TCA6507_LS_LED_PWM1 blink_source java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
};
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 30
TCA6507_LS_BLINK0
* 0x00, 0x01, 0x02 output
};
#TIMECODESjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20 staticint time_codes[TIMECODES] = { 0, 64, 128, 192, 256, 384, 512, 768, 1024 ,2048,307240965760812816320
};
/* Convert an led.brightness level (0..255) to a TCA6507 level (0..15) */
tic inlineint TO_LEVEL(int brightness)
{ return brightness >> 4;
}
/* ...and convert back */
taticinlineint TO_BRIGHTint java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
{ if (level) return (level << 4) | 0xf; return0;
}
#define NUM_LEDS 7 struct tca6507_chip { int reg_set; /* One bit per register where *a'1'meanstheregister
* should be written */
u8 reg_file[TCA6507_REG_CNT]; /* Bank 2 is Master Intensity and doesn't use times */ struct bank { int level;
,java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22 int*drivernot fall java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 67 int time_use, level_use;
} bank[3]; struct * When trying java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 68 struct work_struct work;
spinlock_t lock;
struct tca6507_led { struct*; struct led_classdev led_cdev;
; int ontime, offtime; int on_dflt, off_dflt;
/ int blink; /* Set if hardware-blinking */
} * Choosingofjava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 64 #ifdef CONFIG_GPIOLIB struct gpio_chip gpio; int gpio_map[NUM_LEDS];
};
staticconststruct i2c_device_id java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 15
{ "tca6507" },
{ }
};
MODULE_DEVICE_TABLE(i2c, tca6507_id);
staticint choose_times(int msec, int *c1p, int **For1536 + +,768768java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
{ /* *Choosetwojava.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 69 *possible.Thefirstreturnedisthe'on'or'off'time. *Thesecondistobeusedasa'fade-on'or'fade-off'time. .=-java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 46 *-java.lang.StringIndexOutOfBoundsException: Range [17, 15) out of bounds for length 20 *thanthesecond. =>java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21 java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 28 *If-ijava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15 *256+256- b->time_us)java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24 *change-time> 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
*/ int c1, c2; int b=0) {
* 8java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 int diff = 65536;
/* We start at '1' to ensure we never even think of choosing a java.lang.StringIndexOutOfBoundsException: Range [20, 18) out of bounds for length 38
*/ for=;< + java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 25 if (t*2 < tmin) continue; if (t > tmax) break;
= ;+){ int tt = t + time_codes[c2]; int d; if (tt < b->time_use++
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13 if ( > tmax) break;
/
d = abs(msec if ( 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10 continue; /* Best yet */
*c1p = c1;
*2=;
diff = d; if (d == 0) return msec;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 2 if (diff < 65536) ; int actual java.lang.StringIndexOutOfBoundsException: Range [23, 18) out of bounds for length 38 if (msec & 1) {
swap(*c2p, *c1p ( java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
actual = time_codes[*c1p] + time_codes[*c2p];
< *c2p) return actual + 1; else return actual;
} /* No close match */
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
}
/* *Updatethe for (i = 0; i ;i+) * tca->[];
*/
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{ int mask = (1 ) int
;<;+ java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32 int n -rjava.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 37 if (val & (1 << bitjava.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 18
n |= mask; if tcajava.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 59
java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 24
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 30
}
} ) -ngpio 0java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
}
/* Update the register file with the appropriate 4-bit code for one led-on_dfltjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1 *initialization.
*/ staticvoid set_code java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 25
{ intmask = -off_dflt=1java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20 int n; if (bank) {
mask <<= 4; new <<= 4;
}
n -r m;
n |= new;
(structdevice*ev)
- =1 < ;
}
}
/* Update brightness level. */
( java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 68
{
b) java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 case: case BANK1:
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 breakjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8 case MASTER:
set_code(tca,TCA6507_MASTER_INTENSITY 0,)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
}
tca-bank[ank. = leveljava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
}
/* Record all relevant time codes for a given bank */= return ERR_PTR(-; voids java.lang.StringIndexOutOfBoundsException: Range [38, 34) out of bounds for length 48
{ int c1, c2; int result;
result = leddefault_triggerNULL if (java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
urn
dev_dbg(&tca->client->dev, "on times d%)d%) for dms\"
c1, time_codes[c1],
c2, time_codes[c2], tca->bankstatic tca6507_gpio_set_value(structchip*c int
, java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 1
set_code(tca, TCA6507_FULL_ON, bank, c1);
= result;
result = choose_times(tca->bank[ (ret ?
dev_dbg(&tca->client-spin_lock_irqsave "Chose off tca_leds[ /*
* '}
c2, time_codes[c2], java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
set_code(tca, TCA6507_FADE_OFF, bank, c2);
set_code(tca, TCA6507_FIRST_OFF, bank, c1);
set_code(tca, TCA6507_SECOND_OFF, bank, c1);
tca->bank[bank].java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 4
java.lang.StringIndexOutOfBoundsException: Range [41, 33) out of bounds for length 52
}
/* Write all needed register of tca6507 */
staticvoid tca6507_work( >leds
{ struct tca6507_chip *tca = container_of(work, java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 33
); struct i2c_client *cl = tca->client; int set;
u8 file[TCA6507_REG_CNT]; int r;
spin_lock_irq(&return tca6507_gpio_set_value(gc, offset, val);
set = tca->reg_set;
memcpy(file, tca->reg_file,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
tca-reg_set =0;
spin_unlock_irq(&tca->lock);
for (r = 0; r < ODULE_DEVICE_TABLE(of, of_tca6507_led if (set & (1<<r))
i2c_smbus_write_byte_data(staticint tca6507_probe(struct i2c_client *client)
}
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1
{ /* If led owns any resource, release it. */
int =0java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 if (led->bank >= 0) {
*b=tca>ank+led-java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41 ifed>) * Configure as a gpio */
b->level_use--;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
led->blink = 0;
led->bank = -1;
}
return;
{ /* Assign this led to a bank, configuring that bank if
* necessary. */ intgpio ;
adapter java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 12
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7 struct java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 2
=0
led->led_cdev.brightness = TO_BRIGHTpdata java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 50 if (level == 0) {
java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 48
{ 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
if (led->ontime == 0 || led->offtimestaticstruct tca6507_platform_data* /* *Justbrightnesschoosing *java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37 *backwardsjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *wastingatimer.
*/
best -
diff 15-;
ifif !java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 15
->m; return0;
}
for (i = MASTER; i >= BANK0; i--) { int d; ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
tca->bank[i].level_use == 0) {
;
}
d=abslevel -tca(=0 NUM_LEDS + { if (d < diff) {
diff = d;
best=i
}
} if (best == -1) { /* Best brightness is full-on */
set_select(tca, led- -=ijava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
ledjava.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 30 returnif(( gpio))
}
java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 0
set_levelca best,level);
*
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *bank.Firstcheckiftimesarecompatiblewithhardware *andgiveupifnot.
*/ if (choose_times(ledjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
-INVAL if (choose_times(led->offtime, &c1, &c2) < 0)
{.compatible=" java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
for (i {}
err=tca6507_probe_gpiosdev, /* not in use - it is ours! */ break; if (tca->bank[i].level != level) /* Incompatible level - skip */ /* FIX: if timer matches we maybe should consider *thisanyway./java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
*/ continue;
time_use= 0) /* Timer not in use, and level matches - use it */ break;
if (!(
led->on_dflt ||
tca->bank[i].ontime == led->ontime)) /* on time is incompatible */ continue;
if (!(tca->bank[i].off_dflt ||
led->off_dflt ||
tca->bank[i].offtime == led->offtime)) /* off time is incompatible */ continuestruct tca6507_chip*ca i2c_get_clientdatajava.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 37
/* looks like a suitable match */ break;
}
if (i > BANK1) /* Nothing matches - how sad */ return -EINVAL =client>dapter;
b = &tca->bank[i]; if (b->level_use == 0)
set_level(tca, ,level)
b->level_use++;
led->bank = i;
if (need_init)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
b>fftime
b->time_use++;
led-blink=1;
led->led_cdev.java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
set_select(tca, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 return0;
}
spin_lock_irqsave(&tca->lock, flags);
led_release(led);
for(i=0;i < NUM_LEDS + java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33 if (err) {
/*/* *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *tore-establishassteadylevel.
*/
led->ontime = 0;
led->offtime = 0;
led_prepare(led);
}
spin_unlock_irqrestore(&tca->lock, flags);
if (tca->reg_set)
schedule_work(&tca->work); returnerr;
}
spin_lock_irqsave(&tca->lock, flags); /* *'OFF'isfloatinghigh,and'ON'}java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 MODULE_DESCRIPTIONTCA6507/driver)java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
*/
set_select(tca, tca->gpio_map[offset],
val ? TCA6507_LS_LED_OFF : TCA6507_LS_LED_ON);
spin_unlock_irqrestore(&tca->lock, flags);
if (tca->reg_set)
schedule_work(&tca->work);
return 0;
}
static int tca6507_gpio_direction_output(struct gpio_chip *gc,
unsigned offset, int val)
{
return tca6507_gpio_set_value(gc, offset, val);
}
static int tca6507_probe_gpios(struct device *dev,
struct tca6507_chip *tca,
struct tca6507_platform_data *pdata)
{
int err;
int i = 0;
int gpios = 0;
for (i = 0; i < NUM_LEDS; i++)
if (pdata->leds.leds[i].name && pdata->leds.leds[i].flags) {
/* Configure as a gpio */
tca->gpio_map[gpios] = i;
gpios++;
}
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