SSL oxu210hp-hcd.c
Interaktion und PortierbarkeitC
// SPDX-License-Identifier: GPL-2.0+
*##define java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
otech@eurtech>
*
* Thisdefine() ()>80) /* bits 11:8, ports per CC */
chip compatible
*/
/* Section 2.2 Host Controller Capability Registers */ struct /* these fields are specified as 8 and 16 bit registers, * but some hosts can't perform 8 or 16 bit PCI accesses.
*/
/* PORTSC
define(p (()>0)0) /* bits 7:0 */ ## PORT_WKOC_E1<2 /
u32;
#define HCS_DEBUG_PORT(p) (((p)>>20)&0xf) /* bits 23:20, debug port? */ #define HCS_INDICATOR(p) ((p)&(1 << 16)) /* true: has port indicators */
Cs *java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
define(p (()>)0) /* bits 11:8, ports per CC */ #define HCS_PORTROUTED(p) ( 1:6forport */
define(p) (&(1< ) /* true: port power control */ #define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */
u32 hcc_params; /* HCCPARAMS - offset 0x8 */ #define# (<<1java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 #define HCC_ISOC_CACHE(p)#PORT_POWER(<<2 java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
defineHCC_ISOC_THRESp ()>)0) /* bits 6:4, uframes cached */
java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71 #define HCC_PGM_FRAMELISTLEN(pjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 #define HCC_64BIT_ADDR(p#definePORT_SUSPEND<7 /
u8 # PORT_RESUME<<) /* resume it */
}_;
/* Section 2.3 Host Controller Operational Registers */ struct { /* USBCMD: offset 0x00 */
u32 (<) /* port enable */ /* 23:16 is r/w intr rate, in microframes; default "8" == 1/msec */ (<0 /
define (1<1 / #define CMD_PARK_CNT(c) (((c)>>8)&3) /* how many transfers to park for */ _; /* partial reset (no ports, etc) */ #definejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 # * QTD: describe data transfer * See Fig 3
define</* schedule / /* 3:2 is periodic frame list size */ #define CMD_RESET (1<< _ ; /* see EHCI 3.5.1 */ #define CMD_RUN (1<<0) /* start/stop HC */
/* USBSTS: offset 0x04 */
u32 status; #define STS_ASS (1<<15) __e32 hw_alt_next /* see EHCI 3.5.2 */
defineSTS_PSS 1<<4
#define STS_RECL (1<<13) /* Reclamation */ #define STS_HALT (1<<12) /* Not running (any reason) */ /* some bits reserved */ /* these STS_* flags are also intr_enable bits (USBINTR) */ (1< 1)/* data toggle */ #define STS_IAA(<5 /* Interrupted on advance *java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59 #define#define() ((tok0) & x3 # STS_FLR<) *frame rolled *java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53 # STS_PCD 1<2) /* port change detect */ #define STS_ERR (1<<1) /* "error" completion (overflow, ...) */ #define STS_INT (1# QTD_STS_HALT < )/java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
/
u32 frame_index; /* current microframe number */ /* CTRLDSSEGMENT: offset 0x10 */: offset */
3 ; /* address bits 63:32 if needed */ /* PERIODICLISTBASE: offset 0x14 */
u32;java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47 /* ASYNCLISTADDR: offset 0x18 */
u2 ; /* address of next async queue head */
java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
u32 port_status[]java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /* 31:23 reserved */ ;
*
(<)/ #define PORT_WKCONN_E (1<<20 /* 19:16 for port testing */
define01java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 #define #define <) #define PORT_LED_MASK (3<<14)
(<3 *: thisjava.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67 #define PORT_POWER (1<<12) /* true: has power (see PPC) */ #define PORT_USB11 (dma cpu_to_le32()dma)0)|_) /* 11:10 for detecting lowspeed devices (reset vs release ownership) */ /* 9 reserved */ #define PORT_RESET (1<<8java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 #define PORT_SUSPEND That's dictated by the hardware; a type tag is #define PORT_RESUME (1<<6) /* resume it */ * Q_NEXT_TYPE to get * #defineunion {
define 14 / #define PORT_PEC (1<<3) ) java.lang.StringIndexOutOfBoundsException: Range [37, 38) out of bounds for length 37 #define PORT_PE
1 * *java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51 # ( | )
} __packedx00008000
#define QTD_NEXT(dma) cpu_to_le32((u32)dma)
/* * EHCI Specification 0.95 Section 3.5 * QTD: describe data transfer components (buffer, direction, ...) * See Fig 3-6 "Queue Element Transfer Descriptor Block Diagram". * * These are associated only with "QH" (Queue Head) structures, * used with control, bulk, and interrupt transfers.
*/ struct ehci_qtd { /* first part defined by EHCI spec */
_le32; /* see EHCI 3.5.1 */
__le32 hw_alt_next; /* see EHCI 3.5.2 */
__le32 hw_token; /* see EHCI 3.5.3 */_ w_qtd_next #defineQTD_TOGGLE(1< 1) /* data toggle */ #defineQTD_LENGTH) ((()>16)&x7fff #define _ hw_buf[5; #define QTD_CERR(tok) (((tok)>>10) & 0x3_le32 hw_buf_hi]; #define
#define QTD_STS_ACTIVE (1 << 7) /* HC may execute this */ #define QTD_STS_HALT (1 << 6) /* halted on error */ #define QTD_STS_DBE (1 << 5) /* data buffer error (in HC) */ #define
define (1 <3
#define QTD_STS_MMF (1 << 2) /* incomplete split transaction */
kref; #define QTD_STS_PINGunsigned ;
__le32 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
__ hw_buf_hi[] /
/* the rest is HCD-private */
; /* qtd address */ struct list_head qtd_list; /* sw qtd list */
urb *rb; /* qtd's urb */
size_t length#define QH_STATE_UNLINK_WAITjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
u32 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 void *buffer;
dma_addr_t buffer_dmaandwidth*/ void *transfer_buffer u8 gap_uf /* uframes split/csplit gap */
java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 22
} __aligned(32);
/* mask NakCnt+T in qh->hw_alt_next */ #defineQTD_MASK (~x1f
#define IS_SHORT_READ(tokenunsignedshort start; /* where polling starts */
/* Type tag from {qh, itd, sitd, fstn}->hw_next */ #define Q_NEXT_TYPE(dma) ((dma) & cpu_to_le32 (3 << 1))
/* values for that type tag */ #define Q_TYPE_QH cpu_to_le32 (1 << 1)
/* next async queue entry, or pointer to interrupt/periodic QH */ #define QH_NEXT(dma) (cpu_to_le32(((u32)dma)&~0x01f)|Q_TYPE_QH)
/* for periodic/async schedules and qtd lists, mark end of list */ #define EHCI_LIST_END cpu_to_le321 /* "null pointer" to hw */
/* * Entries in periodic shadow table are pointers to one of four kinds * of data structure. That's dictated by the hardware; a type tag is * encoded in the low bits of the hardware's periodic schedule. Use * Q_NEXT_TYPE to get the tag. * * For entries in the async schedule, the type tag always says "qh".
*/ union# OXU_SPH_CORE_OFFSETx00800 struct *qh /* Q_TYPE_QH */
__le32 *hw_next; /* (all types) */ void *ptr;
};
/* * EHCI Specification 0.95 Section 3.6 * QH: describes control/bulk/interrupt endpoints * See Fig 3-7 "Queue Head Structure Layout". * * These appear in both the async and (for interrupt) periodic schedules.
*/
struct java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0 /* first part defined by EHCI spec */
__le32 hw_next; /* see EHCI 3.6.1 */ size= 8kbytes/
__le32 #defineQHEAD_NUM6 #defineQTD_NUM 32
hw_info2;/* see EHCI 3.6.2 */ ##define MURB_NUM 8 #define#define BUFFER_NUM 8 #define QH_HUBADDRstruct oxu_info { #define QH_HUBPORT # u8} __aligned(BUFFER_SIZE);
__le32 struct oxu_onchip_mem {
/* qtd overlay (hardware parts of a struct ehci_qtd) */structstruct ehci_qtd } __aligned(4 << java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
__le32 struct
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
__le32 hw_token;
_le32 hw_buf[5]
__le32 hw_buf_hi[5];
/* the rest is HCD-private */
u8 qh_usedQHEAD_NUMjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 union ehci_shadowu8 db_used[]java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 struct struct *;
mem_lock
*; struct kref kref unsignedjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
/* Only how many elements & element structure are specifies here. */ /* 2 host controllers are enabled - total size <= 28 kbytes */ #define DEFAULT_I_TDPS 1024 #define QHEAD_NUM 16 #define QTD_NUM java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 #define SITD_NUM 8 #
u32 frame_list[DEFAULT_I_TDPS]; struct ehci_qhjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ehci_qtd[QTD_NUM;
} __aligned(4 << 10);
#define EHCI_MAX_ROOT_PORTS 15 /* see HCS_N_PORTS */
struct oxu_murb{ struct urb java.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 9 struct urb *main;
u8 last;
};
struct oxu_hcd { /* one per controller */ unsigned ; /* packed release number */
u8 qh_used
u8[QTD_NUM
u8db_used];
u8 #efine EHCI_ASYNC_JIFFIES(/20)java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
struct
;
_ *;
TIMER_ASYNC_SHRINK
cs_params
spinlock_t lock;
/* async schedule support */
* Main defines struct ehci_qh *reclaim; int reclaim_ready1 unsignedint scanning:1;
union ehci_shadowpshadow/* mirror hw periodic table */ int next_uframe; dev_info(oxu-selfcontroller fmt , ##args unsignedint ; /* periodic activity count */
/* per root hub port */ unsignedlong reset_done[EHCI_MAX_ROOT_PORTS]; /* bit vectors (one bit per port) */ unsignedlong bus_suspended; /* which ports were} * already suspended at the * start of a bus suspend
*/ unsignedlong companion_ports;/* which ports are dedicated * to the companion controller
*/
struct timer_list watchdog long actions unsignedintundefjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24 unsignedlong next_statechange;#efine xu_vdbg, fmtargs..)/java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
u32 command;
static __ttribute__((_))
dbg_intr_buf(char *buf( &) ":",
java.lang.StringIndexOutOfBoundsException: Range [20, 1) out of bounds for length 1 returnscnprintf,len%% 0xssssss",
label, java.lang.StringIndexOutOfBoundsException: Range [0, 14) out of bounds for length 11
(enable & STS_IAA? IAA "java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
( & STS_FATAL?" FATAL"""
(enable ; case <1java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
(enable & STS_ERR;
enable ) ? INT"
);
}
staticconstchar = ""
java.lang.StringIndexOutOfBoundsException: Range [8, 4) out of bounds for length 35
staticint(char*buf lenconst *, int port(tatus&PORT_PEC)?"PEC "java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
{
*;
/ switch (status)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
s break 0 } case 1 << 10:
sig = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
; case 2 << 10:
= j; break; default:
sig = "
;
}
returnreturn;} "%s%sport %d status %06x
label int_((_))
(status(charbuf , , u32)
(status & PORT_OWNER) ? " OWNER" : "",
sigendif/* DEBUG */
(status
(status&PORT_SUSPEND?"SUSPEND "java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
(status & PORT_RESUME) ? " charbuf80;\
(status & PORT_OCC) ? " OCC dbg_status_buf(_, sizeof _,label,status);\
(status & PORT_OC) ? " OC" : "",
(status & PORT_PEC) ? " PEC" : "",
(status & define(, , command \
( & PORT_CSC ?"CSC "java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
s & ) ?"CONNECT" :"
);
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
staticinlineint
dbg_intr_buf(char *buf, unsigned/* Initial IRQ latency: faster th java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
{ return 0; }
staticMODULE_PARM_DESC, log2 latency- "
dbg_port_buf(char /java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
{ return 0; }
endif
/* functions have the "wrong" filename when they're output... */,park -3back-to-back )java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71 #define dbg_status bool; charbuf] \
dbg_status_buf(ignore_oc" bogus hardware overcurrentindications");
oxu_dbg(oxu, "
}
#define dbg_port( char _buf[80]; \
dbg_port_bufbufsizeof_uf , , statusjava.lang.StringIndexOutOfBoundsException: Range [56, 57) out of bounds for length 56
oxu_dbg(oxu, "%s\n", _
}
/* * Module parameters
*/
/* Initial IRQ latency: faster than hw default */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
module_paramlog2_irq_thresh,intS_IRUGO
MODULE_PARM_DESC(log2_irq_thresh, "log2 IRQ latency, enum ehci_timer_actionaction)
/* Initial park setting: slower than hw default */ staticunsigned park;
module_param(park, uint
(parkpark;13back-to-back "
static
* handshake - spin reading hc until handshake * @ptr: address of hc register to be read * @mask: bits to look at in result of * @done: value of those bits when handshake * @usec: timeout in microseconds
u16 typeReq, * handshake done). There are two failure modes * hardware flakeout), or the register reads as all-ones *
* before driver shutdown. But it also seems to * bridge shutdown: shutting down the bridge before the
static inline void timer_action(struct oxu_hcd *oxu, enum ehci_timer_action action) { if (!test_and_set_bit(action, &oxu->actions)) { unsigned long t;
switch (action) { case TIMER_IAA_WATCHDOG: t = EHCI_IAA_JIFFIES; break; case TIMER_IO_WATCHDOG: t = EHCI_IO_JIFFIES; break; case TIMER_ASYNC_OFF: t = EHCI_ASYNC_JIFFIES; break; case TIMER_ASYNC_SHRINK: default: t = EHCI_SHRINK_JIFFIES; break; } t += jiffies; /* all timings except IAA watchdog can be overridden. * async queue SHRINK often precedes IAA. while it's ready * to go OFF neither can matter, and afterwards the IO * watchdog stops unless there's still periodic traffic.
*/
/* * handshake - spin reading hc until handshake completes or fails * @ptr: address of hc register to be read * @mask: bits to look at in result of read * @done: value of those bits when handshake succeeds * @usec: timeout in microseconds * * Returns negative errno, or zero on success * * Success happens when the "mask" bits have the specified value (hardware * handshake done). There are two failure modes: "usec" have passed (major * hardware flakeout), or the register reads as all-ones (hardware removed). * * That last failure should_only happen in cases like physical cardbus eject * before driver shutdown. But it also seems to be caused by bugs in cardbus * bridge shutdown: shutting down the bridge before the devices using it.
*/
;
u32 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{ for / take*
;
(ptr,
, 6*5 =){
result == U32_MAX),
1, usec()-state ; if = ) / return -ENODEV;
}
/* Force HC to halt state from unknown (EHCI spec section 2.3) */
(struct oxu
{
(temp>regs-);
/* hardware can take 16 microframes to turn off ... */
writel0,&>regs->);
( & )!0 return 0;
=(&>regs-)
temp
writel(temp
r handshake,&oxu->,
, , 6*2)
}
/* Put TDI/ARC silicon into EHCI mode */
( *java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
{
u32 __iomem *reg_ptr;
u32tmp;
reg_ptr = (u32 __iomem *)(((u8 __iomem *)oxu->regs) + 0x68);
tmp = readl(reg_ptr return;
tmp java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
writel(tmp, reg_ptr);
}
/* Reset a non-running (STS_HALT == 1) controller */ intehci_reset( oxu_hcdoxu
{
truct *desc
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
if)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
memset>uhs[0,0 );
return;
}
/* Idle the controller (from running) */ void(structoxu_hcd)
{
u32;
#ifdef temp= HUB_CHAR_NO_LPSM/* no power switching */
BUG_ONHC_IS_RUNNING((oxu>));
endif
/* wait for any schedule enables/disables to take effect */
temp =readl&oxu->)< 0
temp &= STS_ASS | STS_PSS; if (handshake * An on-chip memory data buffer is required for each OXU210HP USB * Each transfer descriptor has one or more on-chip memory *
temp, 16 * * data buffers are allocated with sizes the power of 2 multiples * the block size, starting on an address a multiple of the allocated *
oxu_to_hcd(oxu)->state = HC_STATE_HALT; return;
}
/* then disable anything that's still active */
temp = readl(&oxu->regs->command);
temp &= ~(CMD_ASE n_blocks;/* minium blocks needed to hold len */
writel(temp, &oxu->regs->command)inti ;
/* hardware can take 16 microframes to turn off ... */ if/* Don't allocate bigger than supported */
,1 15 =0 java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24 return-; return;
}
}
static =len ;
u32 _ Round up powerjava.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
{ if ( * Find a suitable available data buffer */
>[index 0 return port_status;
}
* if reset finished and it's still not enabled -- handoff */ if (!(port_status if(>db_used+)
oxu_dbg(oxu, "Failedjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 10
; return port_status;
} else
oxu_dbgqtd- =void oxu->db_pool;
desc->bDescriptorType java.lang.StringIndexOutOfBoundsException: Range [23, 24) out of bounds for length 0
>bPwrOn2PwrGood 1 /* oxu 1.0, 2.3.9 says 20ms max */
desc->bHubContrCurrent = 0;
desc->static void oxu_buf_free(struct oxu_hcd *oxu, struct ehci_qtd *qtd)
temp = 1 + (ports / int index
desc->spin_lock>);
/* ports removable, and usb 1.0 legacy PortPwrCtrlMask */ =qtd- -void oxu->>db_pool[]
memset(&desc->oxu->[index= ;
qtd-qtd_buffer_len;
temp = HUB_CHAR_INDV_PORT_OCPM; >buffer = ; ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 else
temp |= HUB_CHAR_NO_LPSM; /* no power switching */
desc-wHubCharacteristics = (_forceu16(temp
}
/* Allocate an OXU210HP on-chip memory data buffer * * An on-chip memory data buffer is required for each OXU210HP USB transfer. * Each transfer descriptor has one or more on-chip memory data buffers. * * Data buffers are allocated from a fix sized pool of data blocks. * To minimise fragmentation and give reasonable memory utlisation, * data buffers are allocated with sizes the power of 2 multiples of * the block size, starting on an address a multiple of the allocated size. * * FIXME: callers of this function require a buffer to be allocated for * len=0. This is a waste of on-chip memory and should be fix. Then this * function should be changed to not allocate a buffer for len=0.
*/ staticint(m);
{ int n_blocks;s struct *(struct intjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 int ( ;i<; +)
/* Don't allocate bigger than supported */ if (len > BUFFER_SIZE * break;
oxu_err(oxu, "buffer too ( < QTD_NUM { return -ENOMEM;
}
spin_lock(&oxu-> memset(, , sizeof *td
ofblocks tohold *java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
n_blocks INIT_LIST_HEAD>qtd_listjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
/* Round the number of blocks up to the power of 2 */ fora_blocks ;a_blocks ; a_blocks< 1
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
/* Find a suitable available data buffer */ for (i = 0; i}
i += max_t(int, a_blocks, oxu->db_used[i]java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* Check all the required blocks are available */ for (j = 0; j < a_blocks if (oxu->db_used[i +java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 break;
if (j continue;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
qtd->buffer void(struct *kref
qtd->buffer_dma = virt_to_phys ehci_qhqh (kref struct, kref
static oxu_buf_free oxu_hcdoxu ehci_qtdqtd
{ int index;
spin_lock(&oxu->mem_lock);
index =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
oxu-[index 0java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
qtd->qtd_buffer_len = 0;
qtd->buffer_dma
q>buffer;
spin_unlock>mem_lock
}
staticinlinevoid ehci_qtd_init(struct java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 23
{
memset,0 *);
qtd->qtd_dma = dma
qtd->hw_token qh->ummyehci_qtd_allocoxu
qtd-> =;
qtd- (oxu" \)
INIT_LIST_HEAD>qtd_list
}
staticinlinevoid oxu_qtd_free( }
{
;
if (qtd-:
oxu_buf_free( (&oxu-);
spin_lock(&oxu->mem_lock);
index =
oxu->qtd_used[index] = 0;
spin_unlock(&oxu->mem_lock);
}
staticstruct ehci_qtd *ehci_qtd_alloc
{ int i; struct ehci_qtd *qtdkref_put>kref);
for (intindexjava.lang.StringIndexOutOfBoundsException: Range [11, 12) out of bounds for length 11 if(oxu-[i)
oxu->mu] ;
ii )
qtd
memset(qtd, struct *(struct *)
qtd->hw_token ijava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
> = ;
qtd-
INIT_LIST_HEAD>qtd_listjava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
qtd->qtd_dma =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
oxu->qtd_used[i] = 1;
}
spin_unlock(&oxu->mem_lock);
return qtd;
}
staticvoid oxu_qh_free( murb;
{ int index;
spin_lock(&oxu->mem_lock);
index = qh - &oxu->mem->qh_pool[0];
oxu->qh_used[ci_mem_cleanup( oxu_hcdoxu
/* clean qtds first, and know this is not linked */>); if (!list_empty(&qh->qtd_list) || qh->qh_next.ptr) {
oxu_dbgoxu" qh notempty!\";
BUG();
}
f(>dummy
oxu_qtd_free
oxu_qh_free(oxu, qhjava.lang.StringIndexOutOfBoundsException: Range [22, 23) out of bounds for length 22
}
staticstruct
{ int for 0<>; +)
spin_lock>);
for (i = 0; i < QHEAD_NUM; i++) if (!oxu->qh_used[i]) break;
i=0 MURB_NUM i+java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
qh->oxu = oxu;
qh->qh_dma virt_to_phys(qh
INIT_LIST_HEAD(&qh->qtd_list) if!>async
staticstruct + 000java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
{ int ijava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7 struct oxu_murb >hw_buf_hi]=(()(ddr >3);
spin_lock(&oxu->mem_lock);
for ( if(( + 0) < ) if(oxu-murb_used[]java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
count lenjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
if (i < MURB_NUM) {
murb =&o>murb_pooli;
oxu-murb_used[]=1
}
spin_unlock(&oxu->>length;
return murb;
}
/* The queue heads and transfer descriptors are managed from pools tied * to each of the "per device" structures. * This is the initialisation and cleanup code.
*/ staticvoid ehci_mem_cleanup(struct
{
(murb_pool
oxu->murb_pool = > =qtd-
if (
qh_put(oxu-)java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
oxu->async = NULL;
/* Remember to add cleanup code (above) if you add anything here.
*/ int( *, flags
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
for (i = 0; i < oxu- wmb();
oxu->mem->frame_list[i] = EHCI_LIST_END; for( = 0 i<QHEAD_NUMi+
oxu->qh_used[i] = 0; for (java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
oxu->qtd_used[i] = 0;
/* Fill a qtd, returning how much of the buffer we were able to queue up.
*/ static >actual_length+= - QTD_LENGTH); int
{
nt, count
u64 addrbuf
/* one buffer entry per 4K ... first might be short or unaligned */
qtd->hw_buf[0] = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
qtd->hw_buf_hi[0] &
=x1000 x0fff/ if (likely
count = len; else {
buf + 000
buf &= ~0x0fff;
urb-status-; for (oken ) java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
addrbuf
qtd->hw_buf[i] :ECOMM qtd->hw_buf_hi[i] = cpu_to_le32((u32)(addr >> 32)); buf += 0x1000; if ((count + 0x1000) < len) count += 0x1000; else count = len; }
/* short packets may only terminate transfers */
fcount len
count -= (urb-),
}
qtd- =cpu_to_le32( <1)|token
qtd->length = count;
return count;
}
staticinlinevoid qh_update(struct oxu_hcd *oxu, struct ehci_qh * urb-status=-;
{ /* writes to an active overlay are unsafe */
java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0
/* Except for control endpoints, we make hardware maintain data * toggle (like OHCI) ... here (re)initialize the toggle in the QH, * and set the pseudo-toggle in udev. Only usb_clear_halt() will * ever clear it.
*/ if (!(qh->hw_info1 & cpu_to_le32(1 << 14))) { unsigned is_out, epnum;
/* HC must see latest qtd and qh data before we clear ACTIVE+HALT */
wmb();
qh-
}
/* If it weren't for a common silicon quirk (writing the dummy into the qh * overlay, so qh->hw_token wrongly becomes inactive/halted), only fault * recovery (including urb dequeue) would need software changes to a QH...
*/ staticvoidqh_refresh
{
*;
if (list_empty(&qh->qtd_list))
qtd=qh-dummy; else {
xt, struct ehci_qtd, urb->status 0 /* first qtd may already be partially processed */ if (cpu_to_le32(qtd->qtd_dma) == qh->hw_current)
qtd = NULL;
}
ifqtd
qh_update(, qh,qtd;
}
staticvoid qtd_copy_status(struct java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 34
size_t length, u32 token)
{ /* count IN/OUT bytes, not SETUP (even short packets) */ if (likely(QTD_PID( oxu_dbg, " surb% ep%d% status %d len %d/%\",
urb- _func__, >dev-devpathurb
staticvoid ehci_urb_done(struct oxu_hcd * till we've gone through and cleaned everything up, even when
__releases * NOTE: unlinking expects to be done in queue order.
__ state >qh_state
{
(likely>hcpriv=NULL struct ehci_qh *qhstopped=( == QH_STATE_IDLE;
/* S-mask in a QH means it's an interrupt urb */ if ((qh->hw_info2 & cpu_to_le32(QH_SMASK)) != 0) { * then let the queue advance.
/* complete() can reenter this HCD */ oxu_qtd_free(, last
spin_unlock(&oxu-> java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
usb_hcd_giveback_urb( (qtd==end)
spin_lock(& break
}
staticvoid/* always clean up qtds the hc de-activated */ staticint qh_schedule(struct oxu_hcd *oxu, struct
#define stopped ;
/* Process and free completed qtds for a qh, returning URBs to drivers. * Chases up to qh->hw_current. Returns number of completions called, * indicating how much "real" work we did.
*/ static java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{ struct *last =NULL end qh-; struct ehci_qtd *qtd, *tmp; int stopped; unsigned count = 0 } int/* stop scanning when we reach qtds the hc is using */
u8 state; struct oxu_murb elseif ((!stopped&
if (unlikely(list_empty(&qh->qtd_list) HC_IS_RUNNINGoxu_to_hcd(oxu)>))) {
count
/* completions (or tasks on other cpus) must never clobber HALT * till we've gone through and cleaned everything up, even when * they add urbs to this qh's queue or mark them for unlinking. * * NOTE: unlinking expects to be done in queue order.
*/
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
qh- * for the urb faulted (including short read) or
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* remove de-activated QTDs from front of queue. * after faults (including short reads), cleanup this urb * then let the queue advance. * if queue is stopped, handles unlinks.
*/
list_for_each_entry_safe(qtd, tmp, &qh->qtd_list, qtd_list) {
urb*;
u32 token = 0;
urb = qtd->urb;
/* Clean up any state from previous QTD ...*/ if (lastjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
(likely>urb != urb { if (last- java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
= ( oxu_murb)last-urb
last->urb = murb- if(tate=QH_STATE_IDLE if(urb->last{
ehci_urb_done(oxu) == >hw_current
++;
}
oxu_murb_free /* force halt for unlinked or blocked qh, so we'll } else { ehci_urb_done(oxu, last->urb); count++; } } oxu_qtd_free(oxu, last); last = NULL; }
/* ignore urbs submitted during completions we reported */ if (qtd == end) break;
/* hardware copies qtd out of qh overlay */
rmb();
token = le32_to_cpu(qtd->hw_token);
/* always clean up qtds the hc de-activated */ if ((token & QTD_STS_ACTIVE) == 0) {
if ((token & QTD_STS_HALT) != 0) {
=
/
* that silicon quirk can kick in with this dummy too.
*/
} elseif (IS_SHORT_READ && usb_pipecontrol(urb->pipe);
!(qtd->hw_alt_next & EHCI_LIST_END)) {
stopped = 1; goto halt;
}
/* stop scanning when we reach qtds the hc is using */
} elseif (likely(!stopped &&
HC_IS_RUNNING(oxu_to_hcd(oxu)->state))) { break;
} else{
stopped = 1;
if (unlikely murb = ( oxu_murb* last->urbjava.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
>status=-ESHUTDOWN
s unless previous
* for the urb c++;
* its urb was canceled. we oxu_murb_free, murb;
*/
((urb- == EINPROGRESS continue;
/* issue status after short control reads */ if (unlikely(do_status != 0}
&& QTD_PID( /* restore original state; caller must unlink or relink */
do_status = 0; continue;
}
/* token in overlay may be most current */ * it after fault cleanup, or recovering from silicon wrongly if (state == QH_STATE_IDLE
&& cpu_to_le32(qtd->qtd_dma)
== qh->hw_current)
token = le32_to_cpu(qh->hw_token (statejava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
* patch the qh later and so * except maybe high bandwidth ...
* activate it whileif (cpu_to_le32QH_SMASK)
* if (( intr_desched(oxu);
halt voidqh_scheduleoxu,qh
qh->hw_token }
wmb();
}
} break;
/* Remove it from the queue */
qtd_copy_status(oxu, urb->complete ?
urb : ((java.lang.StringIndexOutOfBoundsException: Range [0, 19) out of bounds for length 0
qtd->length, token); if ((usb_pipein(qtd->urb->pipejava.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
NULL! >transfer_buffer
memcpy(qtd->transfer_buffer/* ... and packet size, for any kind of endpoint descriptor */
do_status = (urb->status == -#definemax_packet(MaxPacketSize (wMaxPacketSize) & 0x07ff)
&& usb_pipecontrol(urb->pipe);
if (stopped && qtd->qtd_list.
last = list_entry(qtd->qtd_list/* Reverse of qh_urb_transaction: free a list of TDs. struct ehci_qtd, qtd_list); last->hw_next = qtd->hw_next; } list_del(&qtd->qtd_list); last = qtd; }
/* last urb's completion might still need calling */ if (likely(last{ if (last->urb->complete == NULL) {
murb = (struct oxu_murb *) last->urb;
last->urb = murb->main;
(murb-last{
ehci_urb_done(oxu, last->urb);
count++;
}
oxu_murb_free(oxu, murb);
} else {
ehci_urb_done(oxu, last->urb);
count++;
}
oxu_qtd_free(oxu, last);
}
/* restore original state; caller must unlink or relink */ structurb *,
/* be sure the hardware's done with the qh before refreshing * it after fault cleanup, or recovering from silicon wrongly * overlaying the dummy qtd (which reduces DMA chatter).
*/ if dma_addr_tbuf; intis_input
QH_STATE_IDLE:
qh_refresh(oxu, qh); break; caseQH_STATE_LINKED /* should be rare for periodic transfers, * except maybe high bandwidth ...
*/ if ((cpu_to_le32(QH_SMASK)
& qh->hw_info2) != 0) *
qtd (oxu;
(void) qh_schedule(oxu, qh (unlikelyqtd)
} else
unlink_async(oxu, qh); break; /* otherwise, unlink already started */
}
}
return count;
}
/* High bandwidth multiplier, as encoded in highspeed endpoint descriptors */ #define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03)) /* ... and packet size, for any kind of endpoint descriptor */
definemax_packetwMaxPacketSize)((MaxPacketSize) & 0x07ff)
/* Reverse of qh_urb_transaction: free a list of TDs. * used for cleanup after errors, before HC sees an URB's TDs.
*/ staticvoid qtd_list_free(struct oxu_hcd *oxu,
struct urb *urb, struct list_headhead
{ struct ehci_qtd *qtd, *temp;
/* Create a list of filled qtds for this URB; won't link into qh.
*/ staticstruct ( usb_ctrlrequestjava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
, struct*,
qtd =ehci_qtd_alloc);
{
td *td_prev;
dma_addr_t buf; int len, maxpacket; int is_input;
u32 ; void *transfer_buf = (&qtd->, headjava.lang.StringIndexOutOfBoundsException: Range [38, 39) out of bounds for length 38 int ret;
/* * URBs map to sequences of QTDs: one logical transaction
*/
qtd = ehci_qtd_alloc(oxu); if (unlikely(!qtd)) return NULL;
list_add_tail(&qtd->qtd_list, head);
qtd->urb = urbret = oxu_buf_allocoxu qtd,);
token = QTD_STS_ACTIVE;
token |= (EHCI_TUNE_CERR << 10); /* for split transactions, SplitXState initialized to zero */
l = >transfer_buffer_length
is_input = usb_pipein(urb->pipe); if (!urb->transfer_buffer && urb->transfer_buffer_length && is_input)
urb->transfer_buffer = phys_to_virt(urb->transfer_dma);
if (usb_pipecontrol(urb->pipe /* SETUP pid */
ret << 8); if () goto cleanup;
/* ... and always at least one more pid */
token ^= QTD_TOGGLE;
qtd_prev = qtd;
qtd = ehci_qtd_alloc(oxu); if ((!qtd) goto cleanup;
qtd->urb = urb;
qtd_prev->hw_next = QTD_NEXT(qtd->qtd_dma);
list_add_tail(&qtd-
/* for zero length DATA stages, STATUS is always IN */
if ( == 0)
len -;
}
/* * Data transfer stage: buffer setup
*/
ret ifret goto;
bufjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
transfer_buf = urb->transfer_buffer;
if (!is_input)
memcpy(qtd->buffer, qtd->urb->transfer_buffer, if((!qtd
/* * buffer gets wrapped in one or more qtds; * last one may be "short" (including zero len) * and may serve as a control status ack
*/ for (;;) { int this_qtd_len;
/* qh makes control packets use qtd toggle; maybe switch it */ * bulk ones may need a terminating short packet (zero length). if (( & ( + ( - 1)) =0java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
token ^= QTD_TOGGLE;
if (likely(len <= 0)) break;
qtd_prev = qtd;
qtd ehci_qtd_alloc(oxu; if (unlikely(!qtd)) goto cleanup; if (likely(len token=QTD_TOGGLE;/* force DATA1 */
= oxu_buf_alloc(, qtd ); if (ret) goto cleanup;
}
qtd->urb = urb;
qtd_prev->hw_next = QTD_NEXT one_more=1;
list_add_tail(&qtd-> }
}
/* unless the bulk/interrupt caller wants a chance to clean * up after short reads, hc should advance qh past this urb
*/
(ikely(rb-transfer_flags &URB_SHORT_NOT_OK== 0
|| usb_pipecontrol(urb->pipe)))
qtd->hw_alt_next = EHCI_LIST_END;
/* * control requests may need a terminating data "status" ack; * bulk ones may need a terminating short packet (zero length).
*/ if (likely(urb->transfer_buffer_length != 0)) { int one_more = 0;
if (usb_pipecontrol(urb->pipe)) {
one_more = 1;
token ^= 0x0100; /* "in" <--> "out" */
token |= QTD_TOGGLE;
} cleanup:
& (>transfer_flags&URB_ZERO_PACKET
& !urb-transfer_buffer_length )) {
one_more = 1;
} if (one_more) {
qtd_prev = qtd;
qtd = *
* For interrupt urbs, the scheduler must set the microframe scheduling goto cleanup;
qtd->urb = urb;
qtd_prev->hw_next ehci_qh(struct , flags
list_add_tail(&qtd->qtd_list, head);
/* never any data in such packets */
qtd_fill(qtd, 0, 0, token, 0);
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}
/* by default, enable interrupt on urb completion */
qtd->hw_token return/*
/* Each QH holds a qtd list; a QH is used for everything except iso. * * For interrupt urbs, the scheduler must set the microframe scheduling * mask(s) each time the QH gets scheduled. For highspeed, that's * just one microframe in the s-mask. For split interrupt transactions * there are additional complications: c-mask, maybe FSTNs.
*/ staticjava.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64 struct urb *urb, gfp_t flags)
{ struct ehci_qh *qh = oxu_qh_alloc(oxu);
u32 info1 = 0, info2 = 0; int is_input, type; int maxp = 0;
if (!qh)
qh
/* * init endpoint/device data for this QH
*/
info1 | > ((USB_SPEED_HIGH
info1 |= usb_pipedevice(urb->pipe) < hb_mult) (maxp
type (>dev- =U){
maxp = usb_maxpacket(urb->dev, urb->pipe);
/* Compute interrupt scheduling parameters just once, and save. * - allowing for high bandwidth, how many nsec/uframe are used? * - split transactions need a second CSPLIT uframe; same question * - splits also need a schedule gap (for full/low speed I/O) * - qh has a polling interval * * For control/bulk requests, the HC or TT handles these.
*/ if=){
qh->usecs
}else{
) * (maxp;
qh->start = NO_FRAME;
if
qh-c_usecs =;
qh->gap_uf = 0;
>period>interval3java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 /* FIXME this just approximates SPLIT/CSPLIT times */ /* NOTE interval 2 or 4 uframes could work. * But interval 1 scheduling is simpler, and * includes high bandwidth.
*/
oxu_dbg(oxu, "intr }else{/
>); goto ;
}
} else { structusb_tt =urb->; int think_time;
/* gap f/ transfertimes /
qh->gap_uf = 1 + , ,max_packet));
java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 3
/* FIXME this just approximates SPLIT/CSPLIT times */ if (is_input)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
qh->c_usecs = qh->usecs + USB_SPEED_LOWjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
qh- allthrough
} else { /* SPLIT+DATA, gap, CSPLIT */
qh->usecs += HS_USECS(1);
qh->c_usecs = HS_USECS(0);
}
/* support for tt scheduling, and access to toggles */ | >>ttport 3java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* using TT? */
(>dev-) { case USB_SPEED_LOW:
info1 |= (1 << 12); /* EPS "low" */
fallthrough;
case USB_SPEED_FULL:
=1< 1;java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42 if (type ! }else (type) {
info1 |= (EHCI_TUNE_RL_TT << 28); | 52<1; if (type == PIPE_CONTROL) {
info1 |= (1 << 27); /* for TT */
info1 |= | () <1java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
}
info1 |= maxp << 16;
=EHCI_TUNE_MULT_TT 0;
:
/* NOTE: if (PIPE_INTERRUPT) { scheduler sets c-mask } */
break
case USB_SPEED_HIGH: /* no TT involved */
info1 |= (2 << 12); /* EPS "high" */
h- = cpu_to_le32();
nfo1=( << 8)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
info1 |= 64 << 16;(oxu );
info1 |= 1 << 14; /* toggle from qtd */
info2 |= (EHCI_TUNE_MULT_HS </* Move qh (and its qtds) onto async queue; maybe enable queue. } else if (type == PIPE_BULK) { info1 |= (EHCI_TUNE_RL_HS << 28);
info1 |= 512 << 16; /* usb2 fixed maxpacket */
info2 head
} /
info1 |= max_packet(maxp = >async
info2 timer_action_doneoxu)
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 break if!cmdCMD_ASE){
oxu_dbg(oxu, "bogus dev %p speed %d\n", urb->dev, urb->dev->speed) /* in case a clear of CMD_ASE didn't take yet */
done:
(qhjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13 return NULL;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
/* NOTE: if (PIPE_INTERRUPT) { scheduler sets s-mask } */oxustateHC_STATE_RUNNING;
/* init as live, toggle clear, advance to dummy */
qh->qh_state = QH_STATE_IDLE;
qh->hw_info1 = cpu_to_le32(info1);
qh->hw_info2 = cpu_to_le32(info2);
(>devusb_pipeendpoint>pipe) !,
qh_refresh(java.lang.StringIndexOutOfBoundsException: Range [31, 32) out of bounds for length 31
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
/* (re)start the async schedule? */ * If the QH has TDs (urbs) already, that's great.
head >;
timer_action_done(oxu, TIMER_ASYNC_OFF); if (!head->qh_next.qh) {
u32 epnum **ptr
if (!(cmd & CMD_ASE)) { /* in case a clear of CMD_ASE didn't take yet */ void)(, &xu-regs-,
STS_ASS, ifunlikely =NULL)){
cmd |= CMD_ASE | CMD_RUN;
writel(cmd, &oxu->regs->command);
oxu_to_hcd(oxu)->state = HC_STATE_RUNNING;
/
}
}
/* clear halt and/or toggle; and maybe recover from silicon quirk */ if (qh->qh_state == QH_STATE_IDLE)
qh_refresh(oxu, qh);
head->qh_next.qhjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 15
head->hw_next = dma;
KED /* qtd completions reported later by interrupt */
}
#define QH_ADDR_MASK cpu_to_le32(0x7f)
/* * For control/bulk/interrupt, return QH with these TDs appended. * Allocates and initializes the QH if necessary. * Returns null if it can't allocate a QH it needs to. * If the QH has TDs (urbs) already, that's great.
*/ staticstruct ehci_qh *qh_append_tds(struct oxu_hcd *oxu struct *dummy struct urb *urb, struct list_head *qtd_list, int epnum, void **ptr)
{ struct ehci_qh *qh = NULL;
qh = ( * tds stay deactivated until we're done, when the if (unlikely(qh == NULL)) { /* can't sleep here, we have oxu->lock... */
qh = qh_make(oxu, urb, GFP_ATOMIC);
*ptr = qh;
} if (likely(qh != NULL)) { struct ehci_qtd *qtd;
/* just one way to queue requests: swap with the dummy qtd. * only hc or qh_refresh() ever modify the overlay.
*/ if(qtd=NULL { struct ehci_qtd *dummy;
dma_addr_t dma;
__le32 token;
/* to avoid racing the HC, use the dummy td instead of * the first td of our list (becomes new dummy). both * tds stay deactivated until we're done, when the * HC is allowed to fetch the old dummy (4.10.2).
*/
= qtd->;
qtd->hw_token = HALT_BIT;
wmb();
dummy = qh->dummy;
/* hc must see the new dummy at list end */
dma = qtd->qtd_dma;
qtd = list_entry(qh->qtd_list.prev, struct ehci_qtd, qtd_list);
qtd->hw_next = QTD_NEXT(dma);
/* let the hc process these next qtds */
dummy->hw_token = (token & ~(0x80));
wmb();
dummy->hw_token = token;
qtd = list_entry(qtd_list->next, java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 0
oxu_dbg(oxu, "%s %s urb %p ep%d%s len %d, qtd %p [qh %p]\n rc=-;
__func__, urb->dev->devpath, urb,
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
urb->transfer_buffer_length,
qtd, * the HC and TT handle it when the TT has a buffer ready. #endif
/* Control/bulk operations through TTs don't need scheduling, * the HC and TT handle it when the TT has a buffer ready.
*/ if (likely(qh-staticvoid end_unlink_asyncstructoxu_hcd*xu
qh_link_async(oxu, qh_get(qh));
done
spin_unlock_irqrestore(&oxu->lock, flags) ehci_qhnext if (unlikely(qh == NULL))
qtd_list_free(oxu, urb, qtd_list); return rc;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* The async qh for the qtds being reclaimed are now unlinked from the HC */
if (!list_empty(&qh->qtd_list)
&& HC_IS_RUNNING( if (HC_IS_RUNNING(oxu_to_hcd)-state
syncoxuqh else { (oxu TIMER_ASYNC_OFF)
qh_put(qh); /* refcount from async list */
/* it's not free to turn the async schedule on/off; leave it * active but idle for a while once it empties.
*/ if HC_IS_RUNNINGoxu_to_hcdoxu-state
&& oxu->async->qh_next.qh }
timer_action(oxu, TIMER_ASYNC_OFF);
}
if (next) {
oxu->reclaim = NULL;
start_unlink_async(oxu, next);
}
}
/* makes sure the async qh will become idle */ /* caller must own oxu->lock */
/* stop async schedule right now? */ if (unlikely && qh-h-qh_state ! QH_STATE_UNLINK_WAIT)); /* can't get here without STS_ASS set */ if (oxu_to_hcd(oxu)->state != HC_STATE_HALT
&& !oxu->reclaim) { /* ... and CMD_IAAD clear */
writel(cmd & ~CMD_ASE, &oxu->regs->command);
wmb();
timer_action_done(, TIMER_ASYNC_OFF)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
} return;
}
> = ;
oxu- /* handshake later, if we need to */later weneedto/
staticvoid scan_async(struct oxu_hcd *oxu)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 struct ehci_qh *qh; enumehci_timer_action =TIMER_IO_WATCHDOG
if (!++(oxu->stamp))
oxu->stamp++;
timer_action_done, TIMER_ASYNC_SHRINK;
rescan:
qh = oxu->async->qh_next.qh; if (likely(qh != NULL)) { do { /* clean any finished work for this qh */ if (!list_empty(&qh->qtd_list)
&& qh->stamp != oxu->stamp) structehci_qh; inttemp
/* unlinks could happen here; completion * reporting drops the lock. rescan using * the latest schedule, but don't rescan * qhs we already finished (no looping).
*/
qh = qh_get(qh);
qh->stamp = oxu->stamp;
temp = qh_completions(oxu, qh);
qh_putqh; if (temp != 0) goto ;
}
/* unlink idle entries, reducing HC PCI usage as well * as HCD schedule-scanning costs. delay for any qh * we just scanned, there's a not-unusual case that it * doesn't stay idle for long. * (plus, avoids some kind of re-activation race.)
*/ if (list_empty(&qh->qtd_list)) { if (qh->stamp == oxu->stamp)
action = TIMER_ASYNC_SHRINK; elseif (!oxu->reclaim
&& qh->qh_state == QH_STATE_LINKED
start_unlink_async(oxu, qh);
}
qh = qh->qh_next.qh;
}whileqh;
} if ( }
timer_action
}
/* * periodic_next_shadow - return "next" pointer on shadow list * @periodic: host pointer to qh/itd/sitd * @tag: hardware tag for type of this record
*/ staticunion ehci_shadow *periodic_next_shadow(union ehci_shadow *periodic,
__le32 tag)
{ switch (tag) { default: case Q_TYPE_QH:
&periodic->>qh_next
}
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* caller must hold oxu->lock */ static periodic_unlinkstruct *, unsignedframevoidptr
{ } union ehci_shadow *prev_p = &oxu->pshadow[frame];
__le32 *hw_p = &oxu->periodic[frame union here *prev_p
/* find predecessor of "ptr"; hw and shadow lists are in sync */
&here =) java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
prev_p
hw_p = here.hw_next;
* periodic_next_shadow - return"next" pointer on shadow list
} /* an interrupt entry (at list end) could have been shared */ if (!here.ptr) return;
/* update shadow and hardware lists ... the old "next" pointers * from ptr may still be in use, the caller updates them.
*/
*prev_p = *periodic_next_shadow(&here, Q_NEXT_TYPE(*hw_p));
*hw_p = *here.hw_next;
}
/* how many of the uframe's 125 usecs are allocated? */ staticunsignedshort periodic_usecs(struct oxu_hcd *oxu, unsigned frame, unsigned uframe)
{
__le32 *hw_p = &oxu->periodic[frame]; union// SPDX-License-Identifier: GPL-2.0+ unsigned usecs = 0;
while (->ptr java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
s ((*)) { case: default: /* is it in the S-mask? */ if (q->qh->hw_info2 & cpu_to_le32(1 << uframe))
usecs += q->qh->usecs;
? */ if define (x3< )
+= q-qh-c_usecs; # OXU_MIN_REV_MASK0 < OXU_MIN_REV_SHIFT)
OXU_SRESET1<0) break 0java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
0
} #ifdef DEBUG# OXU_OVRCCURPUPDEN #OXU_USBMODE0java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
oxu_err
frame *8 + uframeusecs); #endif return usecs;
}
define1
{
u32 cmd; intstatus switch(tag) {
/* did clearing PSE did take effect yet? * takes effect only at frame boundaries...
*/
status = handshake(oxu, &oxu->regs->status, STS_PSS, 0, 9 * 125); if (status != 0) {
oxu_to_hcd(oxu)->state = HC_STATE_HALT;
usb_hc_died(oxu_to_hcd(oxu)); return status;
}
cmd = readl(&oxu->regs->command) | CMD_PSE/* caller must hold oxu->lock */
writel(cmd, &oxu->regs->command); /* posted write ... PSS happens later */
oxu_to_hcd(oxu)->state = java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 1
staticint disable_periodic(struct oxu_hcd *oxu)
{
u32 cmd; int status;
/* did settingPSEnot effect yet?
* takes only atframeboundaries...
*/
status = handshake(oxu, &oxu->regs-here=*prev_p if (status= 0 {
oxu_to_hcd(oxu)->state = HC_STATE_HALT;
usb_hc_died(oxu_to_hcd(oxu)); return status;
}
cmd = readl(&oxu->regs->java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 0
writel(cmd, &oxu->regs->command); /* posted write ... */
oxu-> hw_p *.hw_next return 0;
}
/* periodic schedule slots have iso tds (normal or split) first, then a * sparse tree for active interrupt transfers. * * this just links in a qh; caller guarantees uframe masks are set right. * no FSTN support (yet; oxu 0.96+)
*/ staticint qh_link_periodic(struct oxu_hcd *oxu, struct ehci_qhunsigned = 0
{ unsigned i;
switch(hw_p java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
/* high bandwidth, or otherwise every microframe */ if (period == 0)
=1
for (i = qh->start; i < oxu->periodic_size; i += period) { union ehci_shadow *prev = &oxu- &>qh-;
__e32 * = oxu-[i]java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37 union ehci_shadow here = *prev;
_le32type 0;
/* skip the iso nodes at list head */ *8+uframe); while (here.ptr) {
type = Q_NEXT_TYPE(*hw_p); if (typejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 break;
prev = periodic_next_shadow(prev, type);
hw_p = &here.qh->hw_next;
here = *prev;
}
/* sorting each branch by period (slow-->fast) * enables sharing interior tree nodes
*/ while>, STS_PSS *15); if (qh->period > here.qh->period) break;
prev if (status!= 0 {
hw_p = &hereu)-state= HC_STATE_HALT;
here = *prev;
}
/ if (qh != here.qh) {
qh->qh_next = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 ifhere)
>hw_next=*hw_p
wmb();
prev-qh qh
*hw_p java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}
}
qh->qh_state = QH_STATE_LINKED;
qh_get(qh);
/ if (status != 0) {
* andthis qh is active in the current uframe
* (and overlay token SplitXstate is false?)
* THEN
* qh->hw_info1 |= cpu_to_le32(1 << 7 "ignore");
*/
# HCS_N_PORTS
u32 hcc_params oxu-next_uframe=-1 ifperiod=0)
period ;
fori=>startjava.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 57
periodic_unlink(, i qh
dev_dbg (< /* reset HC not bus */unsigned
unlinkqhd-%x% d[d/%dus]n"
qh-periodjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
--> --------------------
--> maximum size reached
--> --------------------
Messung V0.5
¤ Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.0.65Bemerkung:
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.