diff options
Diffstat (limited to 'drivers/usb/host/fotg210.h')
| -rw-r--r-- | drivers/usb/host/fotg210.h | 750 |
1 files changed, 0 insertions, 750 deletions
diff --git a/drivers/usb/host/fotg210.h b/drivers/usb/host/fotg210.h deleted file mode 100644 index 8920f9d32564..000000000000 --- a/drivers/usb/host/fotg210.h +++ /dev/null @@ -1,750 +0,0 @@ -#ifndef __LINUX_FOTG210_H -#define __LINUX_FOTG210_H - -/* definitions used for the EHCI driver */ - -/* - * __hc32 and __hc16 are "Host Controller" types, they may be equivalent to - * __leXX (normally) or __beXX (given FOTG210_BIG_ENDIAN_DESC), depending on - * the host controller implementation. - * - * To facilitate the strongest possible byte-order checking from "sparse" - * and so on, we use __leXX unless that's not practical. - */ -#define __hc32 __le32 -#define __hc16 __le16 - -/* statistics can be kept for tuning/monitoring */ -struct fotg210_stats { - /* irq usage */ - unsigned long normal; - unsigned long error; - unsigned long iaa; - unsigned long lost_iaa; - - /* termination of urbs from core */ - unsigned long complete; - unsigned long unlink; -}; - -/* fotg210_hcd->lock guards shared data against other CPUs: - * fotg210_hcd: async, unlink, periodic (and shadow), ... - * usb_host_endpoint: hcpriv - * fotg210_qh: qh_next, qtd_list - * fotg210_qtd: qtd_list - * - * Also, hold this lock when talking to HC registers or - * when updating hw_* fields in shared qh/qtd/... structures. - */ - -#define FOTG210_MAX_ROOT_PORTS 1 /* see HCS_N_PORTS */ - -/* - * fotg210_rh_state values of FOTG210_RH_RUNNING or above mean that the - * controller may be doing DMA. Lower values mean there's no DMA. - */ -enum fotg210_rh_state { - FOTG210_RH_HALTED, - FOTG210_RH_SUSPENDED, - FOTG210_RH_RUNNING, - FOTG210_RH_STOPPING -}; - -/* - * Timer events, ordered by increasing delay length. - * Always update event_delays_ns[] and event_handlers[] (defined in - * ehci-timer.c) in parallel with this list. - */ -enum fotg210_hrtimer_event { - FOTG210_HRTIMER_POLL_ASS, /* Poll for async schedule off */ - FOTG210_HRTIMER_POLL_PSS, /* Poll for periodic schedule off */ - FOTG210_HRTIMER_POLL_DEAD, /* Wait for dead controller to stop */ - FOTG210_HRTIMER_UNLINK_INTR, /* Wait for interrupt QH unlink */ - FOTG210_HRTIMER_FREE_ITDS, /* Wait for unused iTDs and siTDs */ - FOTG210_HRTIMER_ASYNC_UNLINKS, /* Unlink empty async QHs */ - FOTG210_HRTIMER_IAA_WATCHDOG, /* Handle lost IAA interrupts */ - FOTG210_HRTIMER_DISABLE_PERIODIC, /* Wait to disable periodic sched */ - FOTG210_HRTIMER_DISABLE_ASYNC, /* Wait to disable async sched */ - FOTG210_HRTIMER_IO_WATCHDOG, /* Check for missing IRQs */ - FOTG210_HRTIMER_NUM_EVENTS /* Must come last */ -}; -#define FOTG210_HRTIMER_NO_EVENT 99 - -struct fotg210_hcd { /* one per controller */ - /* timing support */ - enum fotg210_hrtimer_event next_hrtimer_event; - unsigned enabled_hrtimer_events; - ktime_t hr_timeouts[FOTG210_HRTIMER_NUM_EVENTS]; - struct hrtimer hrtimer; - - int PSS_poll_count; - int ASS_poll_count; - int died_poll_count; - - /* glue to PCI and HCD framework */ - struct fotg210_caps __iomem *caps; - struct fotg210_regs __iomem *regs; - struct fotg210_dbg_port __iomem *debug; - - __u32 hcs_params; /* cached register copy */ - spinlock_t lock; - enum fotg210_rh_state rh_state; - - /* general schedule support */ - bool scanning:1; - bool need_rescan:1; - bool intr_unlinking:1; - bool async_unlinking:1; - bool shutdown:1; - struct fotg210_qh *qh_scan_next; - - /* async schedule support */ - struct fotg210_qh *async; - struct fotg210_qh *dummy; /* For AMD quirk use */ - struct fotg210_qh *async_unlink; - struct fotg210_qh *async_unlink_last; - struct fotg210_qh *async_iaa; - unsigned async_unlink_cycle; - unsigned async_count; /* async activity count */ - - /* periodic schedule support */ -#define DEFAULT_I_TDPS 1024 /* some HCs can do less */ - unsigned periodic_size; - __hc32 *periodic; /* hw periodic table */ - dma_addr_t periodic_dma; - struct list_head intr_qh_list; - unsigned i_thresh; /* uframes HC might cache */ - - union fotg210_shadow *pshadow; /* mirror hw periodic table */ - struct fotg210_qh *intr_unlink; - struct fotg210_qh *intr_unlink_last; - unsigned intr_unlink_cycle; - unsigned now_frame; /* frame from HC hardware */ - unsigned next_frame; /* scan periodic, start here */ - unsigned intr_count; /* intr activity count */ - unsigned isoc_count; /* isoc activity count */ - unsigned periodic_count; /* periodic activity count */ - /* max periodic time per uframe */ - unsigned uframe_periodic_max; - - - /* list of itds completed while now_frame was still active */ - struct list_head cached_itd_list; - struct fotg210_itd *last_itd_to_free; - - /* per root hub port */ - unsigned long reset_done[FOTG210_MAX_ROOT_PORTS]; - - /* bit vectors (one bit per port) */ - unsigned long bus_suspended; /* which ports were - already suspended at the start of a bus suspend */ - unsigned long companion_ports; /* which ports are - dedicated to the companion controller */ - unsigned long owned_ports; /* which ports are - owned by the companion during a bus suspend */ - unsigned long port_c_suspend; /* which ports have - the change-suspend feature turned on */ - unsigned long suspended_ports; /* which ports are - suspended */ - unsigned long resuming_ports; /* which ports have - started to resume */ - - /* per-HC memory pools (could be per-bus, but ...) */ - struct dma_pool *qh_pool; /* qh per active urb */ - struct dma_pool *qtd_pool; /* one or more per qh */ - struct dma_pool *itd_pool; /* itd per iso urb */ - - unsigned random_frame; - unsigned long next_statechange; - ktime_t last_periodic_enable; - u32 command; - - /* SILICON QUIRKS */ - unsigned need_io_watchdog:1; - unsigned fs_i_thresh:1; /* Intel iso scheduling */ - - u8 sbrn; /* packed release number */ - - /* irq statistics */ -#ifdef FOTG210_STATS - struct fotg210_stats stats; -# define COUNT(x) ((x)++) -#else -# define COUNT(x) -#endif - - /* debug files */ -#ifdef DEBUG - struct dentry *debug_dir; -#endif -}; - -/* convert between an HCD pointer and the corresponding FOTG210_HCD */ -static inline struct fotg210_hcd *hcd_to_fotg210(struct usb_hcd *hcd) -{ - return (struct fotg210_hcd *)(hcd->hcd_priv); -} -static inline struct usb_hcd *fotg210_to_hcd(struct fotg210_hcd *fotg210) -{ - return container_of((void *) fotg210, struct usb_hcd, hcd_priv); -} - -/*-------------------------------------------------------------------------*/ - -/* EHCI register interface, corresponds to EHCI Revision 0.95 specification */ - -/* Section 2.2 Host Controller Capability Registers */ -struct fotg210_caps { - /* these fields are specified as 8 and 16 bit registers, - * but some hosts can't perform 8 or 16 bit PCI accesses. - * some hosts treat caplength and hciversion as parts of a 32-bit - * register, others treat them as two separate registers, this - * affects the memory map for big endian controllers. - */ - u32 hc_capbase; -#define HC_LENGTH(fotg210, p) (0x00ff&((p) >> /* bits 7:0 / offset 00h */ \ - (fotg210_big_endian_capbase(fotg210) ? 24 : 0))) -#define HC_VERSION(fotg210, p) (0xffff&((p) >> /* bits 31:16 / offset 02h */ \ - (fotg210_big_endian_capbase(fotg210) ? 0 : 16))) - u32 hcs_params; /* HCSPARAMS - offset 0x4 */ -#define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */ - - u32 hcc_params; /* HCCPARAMS - offset 0x8 */ -#define HCC_CANPARK(p) ((p)&(1 << 2)) /* true: can park on async qh */ -#define HCC_PGM_FRAMELISTLEN(p) ((p)&(1 << 1)) /* true: periodic_size changes*/ - u8 portroute[8]; /* nibbles for routing - offset 0xC */ -}; - - -/* Section 2.3 Host Controller Operational Registers */ -struct fotg210_regs { - - /* USBCMD: offset 0x00 */ - u32 command; - -/* EHCI 1.1 addendum */ -/* 23:16 is r/w intr rate, in microframes; default "8" == 1/msec */ -#define CMD_PARK (1<<11) /* enable "park" on async qh */ -#define CMD_PARK_CNT(c) (((c)>>8)&3) /* how many transfers to park for */ -#define CMD_IAAD (1<<6) /* "doorbell" interrupt async advance */ -#define CMD_ASE (1<<5) /* async schedule enable */ -#define CMD_PSE (1<<4) /* periodic schedule enable */ -/* 3:2 is periodic frame list size */ -#define CMD_RESET (1<<1) /* reset HC not bus */ -#define CMD_RUN (1<<0) /* start/stop HC */ - - /* USBSTS: offset 0x04 */ - u32 status; -#define STS_ASS (1<<15) /* Async Schedule Status */ -#define STS_PSS (1<<14) /* Periodic Schedule Status */ -#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) */ -#define STS_IAA (1<<5) /* Interrupted on async advance */ -#define STS_FATAL (1<<4) /* such as some PCI access errors */ -#define STS_FLR (1<<3) /* frame list rolled over */ -#define STS_PCD (1<<2) /* port change detect */ -#define STS_ERR (1<<1) /* "error" completion (overflow, ...) */ -#define STS_INT (1<<0) /* "normal" completion (short, ...) */ - - /* USBINTR: offset 0x08 */ - u32 intr_enable; - - /* FRINDEX: offset 0x0C */ - u32 frame_index; /* current microframe number */ - /* CTRLDSSEGMENT: offset 0x10 */ - u32 segment; /* address bits 63:32 if needed */ - /* PERIODICLISTBASE: offset 0x14 */ - u32 frame_list; /* points to periodic list */ - /* ASYNCLISTADDR: offset 0x18 */ - u32 async_next; /* address of next async queue head */ - - u32 reserved1; - /* PORTSC: offset 0x20 */ - u32 port_status; -/* 31:23 reserved */ -#define PORT_USB11(x) (((x)&(3<<10)) == (1<<10)) /* USB 1.1 device */ -#define PORT_RESET (1<<8) /* reset port */ -#define PORT_SUSPEND (1<<7) /* suspend port */ -#define PORT_RESUME (1<<6) /* resume it */ -#define PORT_PEC (1<<3) /* port enable change */ -#define PORT_PE (1<<2) /* port enable */ -#define PORT_CSC (1<<1) /* connect status change */ -#define PORT_CONNECT (1<<0) /* device connected */ -#define PORT_RWC_BITS (PORT_CSC | PORT_PEC) - u32 reserved2[19]; - - /* OTGCSR: offet 0x70 */ - u32 otgcsr; -#define OTGCSR_HOST_SPD_TYP (3 << 22) -#define OTGCSR_A_BUS_DROP (1 << 5) -#define OTGCSR_A_BUS_REQ (1 << 4) - - /* OTGISR: offset 0x74 */ - u32 otgisr; -#define OTGISR_OVC (1 << 10) - - u32 reserved3[15]; - - /* GMIR: offset 0xB4 */ - u32 gmir; -#define GMIR_INT_POLARITY (1 << 3) /*Active High*/ -#define GMIR_MHC_INT (1 << 2) -#define GMIR_MOTG_INT (1 << 1) -#define GMIR_MDEV_INT (1 << 0) -}; - -/* Appendix C, Debug port ... intended for use with special "debug devices" - * that can help if there's no serial console. (nonstandard enumeration.) - */ -struct fotg210_dbg_port { - u32 control; -#define DBGP_OWNER (1<<30) -#define DBGP_ENABLED (1<<28) -#define DBGP_DONE (1<<16) -#define DBGP_INUSE (1<<10) -#define DBGP_ERRCODE(x) (((x)>>7)&0x07) -# define DBGP_ERR_BAD 1 -# define DBGP_ERR_SIGNAL 2 -#define DBGP_ERROR (1<<6) -#define DBGP_GO (1<<5) -#define DBGP_OUT (1<<4) -#define DBGP_LEN(x) (((x)>>0)&0x0f) - u32 pids; -#define DBGP_PID_GET(x) (((x)>>16)&0xff) -#define DBGP_PID_SET(data, tok) (((data)<<8)|(tok)) - u32 data03; - u32 data47; - u32 address; -#define DBGP_EPADDR(dev, ep) (((dev)<<8)|(ep)) -}; - -#ifdef CONFIG_EARLY_PRINTK_DBGP -#include <linux/init.h> -extern int __init early_dbgp_init(char *s); -extern struct console early_dbgp_console; -#endif /* CONFIG_EARLY_PRINTK_DBGP */ - -struct usb_hcd; - -static inline int xen_dbgp_reset_prep(struct usb_hcd *hcd) -{ - return 1; /* Shouldn't this be 0? */ -} - -static inline int xen_dbgp_external_startup(struct usb_hcd *hcd) -{ - return -1; -} - -#ifdef CONFIG_EARLY_PRINTK_DBGP -/* Call backs from fotg210 host driver to fotg210 debug driver */ -extern int dbgp_external_startup(struct usb_hcd *); -extern int dbgp_reset_prep(struct usb_hcd *hcd); -#else -static inline int dbgp_reset_prep(struct usb_hcd *hcd) -{ - return xen_dbgp_reset_prep(hcd); -} -static inline int dbgp_external_startup(struct usb_hcd *hcd) -{ - return xen_dbgp_external_startup(hcd); -} -#endif - -/*-------------------------------------------------------------------------*/ - -#define QTD_NEXT(fotg210, dma) cpu_to_hc32(fotg210, (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 fotg210_qtd { - /* first part defined by EHCI spec */ - __hc32 hw_next; /* see EHCI 3.5.1 */ - __hc32 hw_alt_next; /* see EHCI 3.5.2 */ - __hc32 hw_token; /* see EHCI 3.5.3 */ -#define QTD_TOGGLE (1 << 31) /* data toggle */ -#define QTD_LENGTH(tok) (((tok)>>16) & 0x7fff) -#define QTD_IOC (1 << 15) /* interrupt on complete */ -#define QTD_CERR(tok) (((tok)>>10) & 0x3) -#define QTD_PID(tok) (((tok)>>8) & 0x3) -#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 QTD_STS_BABBLE (1 << 4) /* device was babbling (qtd halted) */ -#define QTD_STS_XACT (1 << 3) /* device gave illegal response */ -#define QTD_STS_MMF (1 << 2) /* incomplete split transaction */ -#define QTD_STS_STS (1 << 1) /* split transaction state */ -#define QTD_STS_PING (1 << 0) /* issue PING? */ - -#define ACTIVE_BIT(fotg210) cpu_to_hc32(fotg210, QTD_STS_ACTIVE) -#define HALT_BIT(fotg210) cpu_to_hc32(fotg210, QTD_STS_HALT) -#define STATUS_BIT(fotg210) cpu_to_hc32(fotg210, QTD_STS_STS) - - __hc32 hw_buf[5]; /* see EHCI 3.5.4 */ - __hc32 hw_buf_hi[5]; /* Appendix B */ - - /* the rest is HCD-private */ - dma_addr_t qtd_dma; /* qtd address */ - struct list_head qtd_list; /* sw qtd list */ - struct urb *urb; /* qtd's urb */ - size_t length; /* length of buffer */ -} __aligned(32); - -/* mask NakCnt+T in qh->hw_alt_next */ -#define QTD_MASK(fotg210) cpu_to_hc32(fotg210, ~0x1f) - -#define IS_SHORT_READ(token) (QTD_LENGTH(token) != 0 && QTD_PID(token) == 1) - -/*-------------------------------------------------------------------------*/ - -/* type tag from {qh,itd,fstn}->hw_next */ -#define Q_NEXT_TYPE(fotg210, dma) ((dma) & cpu_to_hc32(fotg210, 3 << 1)) - -/* - * Now the following defines are not converted using the - * cpu_to_le32() macro anymore, since we have to support - * "dynamic" switching between be and le support, so that the driver - * can be used on one system with SoC EHCI controller using big-endian - * descriptors as well as a normal little-endian PCI EHCI controller. - */ -/* values for that type tag */ -#define Q_TYPE_ITD (0 << 1) -#define Q_TYPE_QH (1 << 1) -#define Q_TYPE_SITD (2 << 1) -#define Q_TYPE_FSTN (3 << 1) - -/* next async queue entry, or pointer to interrupt/periodic QH */ -#define QH_NEXT(fotg210, dma) \ - (cpu_to_hc32(fotg210, (((u32)dma)&~0x01f)|Q_TYPE_QH)) - -/* for periodic/async schedules and qtd lists, mark end of list */ -#define FOTG210_LIST_END(fotg210) \ - cpu_to_hc32(fotg210, 1) /* "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 fotg210_shadow { - struct fotg210_qh *qh; /* Q_TYPE_QH */ - struct fotg210_itd *itd; /* Q_TYPE_ITD */ - struct fotg210_fstn *fstn; /* Q_TYPE_FSTN */ - __hc32 *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. - */ - -/* first part defined by EHCI spec */ -struct fotg210_qh_hw { - __hc32 hw_next; /* see EHCI 3.6.1 */ - __hc32 hw_info1; /* see EHCI 3.6.2 */ -#define QH_CONTROL_EP (1 << 27) /* FS/LS control endpoint */ -#define QH_HEAD (1 << 15) /* Head of async reclamation list */ -#define QH_TOGGLE_CTL (1 << 14) /* Data toggle control */ -#define QH_HIGH_SPEED (2 << 12) /* Endpoint speed */ -#define QH_LOW_SPEED (1 << 12) -#define QH_FULL_SPEED (0 << 12) -#define QH_INACTIVATE (1 << 7) /* Inactivate on next transaction */ - __hc32 hw_info2; /* see EHCI 3.6.2 */ -#define QH_SMASK 0x000000ff -#define QH_CMASK 0x0000ff00 -#define QH_HUBADDR 0x007f0000 -#define QH_HUBPORT 0x3f800000 -#define QH_MULT 0xc0000000 - __hc32 hw_current; /* qtd list - see EHCI 3.6.4 */ - - /* qtd overlay (hardware parts of a struct fotg210_qtd) */ - __hc32 hw_qtd_next; - __hc32 hw_alt_next; - __hc32 hw_token; - __hc32 hw_buf[5]; - __hc32 hw_buf_hi[5]; -} __aligned(32); - -struct fotg210_qh { - struct fotg210_qh_hw *hw; /* Must come first */ - /* the rest is HCD-private */ - dma_addr_t qh_dma; /* address of qh */ - union fotg210_shadow qh_next; /* ptr to qh; or periodic */ - struct list_head qtd_list; /* sw qtd list */ - struct list_head intr_node; /* list of intr QHs */ - struct fotg210_qtd *dummy; - struct fotg210_qh *unlink_next; /* next on unlink list */ - - unsigned unlink_cycle; - - u8 needs_rescan; /* Dequeue during giveback */ - u8 qh_state; -#define QH_STATE_LINKED 1 /* HC sees this */ -#define QH_STATE_UNLINK 2 /* HC may still see this */ -#define QH_STATE_IDLE 3 /* HC doesn't see this */ -#define QH_STATE_UNLINK_WAIT 4 /* LINKED and on unlink q */ -#define QH_STATE_COMPLETING 5 /* don't touch token.HALT */ - - u8 xacterrs; /* XactErr retry counter */ -#define QH_XACTERR_MAX 32 /* XactErr retry limit */ - - /* periodic schedule info */ - u8 usecs; /* intr bandwidth */ - u8 gap_uf; /* uframes split/csplit gap */ - u8 c_usecs; /* ... split completion bw */ - u16 tt_usecs; /* tt downstream bandwidth */ - unsigned short period; /* polling interval */ - unsigned short start; /* where polling starts */ -#define NO_FRAME ((unsigned short)~0) /* pick new start */ - - struct usb_device *dev; /* access to TT */ - unsigned is_out:1; /* bulk or intr OUT */ - unsigned clearing_tt:1; /* Clear-TT-Buf in progress */ -}; - -/*-------------------------------------------------------------------------*/ - -/* description of one iso transaction (up to 3 KB data if highspeed) */ -struct fotg210_iso_packet { - /* These will be copied to iTD when scheduling */ - u64 bufp; /* itd->hw_bufp{,_hi}[pg] |= */ - __hc32 transaction; /* itd->hw_transaction[i] |= */ - u8 cross; /* buf crosses pages */ - /* for full speed OUT splits */ - u32 buf1; -}; - -/* temporary schedule data for packets from iso urbs (both speeds) - * each packet is one logical usb transaction to the device (not TT), - * beginning at stream->next_uframe - */ -struct fotg210_iso_sched { - struct list_head td_list; - unsigned span; - struct fotg210_iso_packet packet[0]; -}; - -/* - * fotg210_iso_stream - groups all (s)itds for this endpoint. - * acts like a qh would, if EHCI had them for ISO. - */ -struct fotg210_iso_stream { - /* first field matches fotg210_hq, but is NULL */ - struct fotg210_qh_hw *hw; - - u8 bEndpointAddress; - u8 highspeed; - struct list_head td_list; /* queued itds */ - struct list_head free_list; /* list of unused itds */ - struct usb_device *udev; - struct usb_host_endpoint *ep; - - /* output of (re)scheduling */ - int next_uframe; - __hc32 splits; - - /* the rest is derived from the endpoint descriptor, - * trusting urb->interval == f(epdesc->bInterval) and - * including the extra info for hw_bufp[0..2] - */ - u8 usecs, c_usecs; - u16 interval; - u16 tt_usecs; - u16 maxp; - u16 raw_mask; - unsigned bandwidth; - - /* This is used to initialize iTD's hw_bufp fields */ - __hc32 buf0; - __hc32 buf1; - __hc32 buf2; - - /* this is used to initialize sITD's tt info */ - __hc32 address; -}; - -/*-------------------------------------------------------------------------*/ - -/* - * EHCI Specification 0.95 Section 3.3 - * Fig 3-4 "Isochronous Transaction Descriptor (iTD)" - * - * Schedule records for high speed iso xfers - */ -struct fotg210_itd { - /* first part defined by EHCI spec */ - __hc32 hw_next; /* see EHCI 3.3.1 */ - __hc32 hw_transaction[8]; /* see EHCI 3.3.2 */ -#define FOTG210_ISOC_ACTIVE (1<<31) /* activate transfer this slot */ -#define FOTG210_ISOC_BUF_ERR (1<<30) /* Data buffer error */ -#define FOTG210_ISOC_BABBLE (1<<29) /* babble detected */ -#define FOTG210_ISOC_XACTERR (1<<28) /* XactErr - transaction error */ -#define FOTG210_ITD_LENGTH(tok) (((tok)>>16) & 0x0fff) -#define FOTG210_ITD_IOC (1 << 15) /* interrupt on complete */ - -#define ITD_ACTIVE(fotg210) cpu_to_hc32(fotg210, FOTG210_ISOC_ACTIVE) - - __hc32 hw_bufp[7]; /* see EHCI 3.3.3 */ - __hc32 hw_bufp_hi[7]; /* Appendix B */ - - /* the rest is HCD-private */ - dma_addr_t itd_dma; /* for this itd */ - union fotg210_shadow itd_next; /* ptr to periodic q entry */ - - struct urb *urb; - struct fotg210_iso_stream *stream; /* endpoint's queue */ - struct list_head itd_list; /* list of stream's itds */ - - /* any/all hw_transactions here may be used by that urb */ - unsigned frame; /* where scheduled */ - unsigned pg; - unsigned index[8]; /* in urb->iso_frame_desc */ -} __aligned(32); - -/*-------------------------------------------------------------------------*/ - -/* - * EHCI Specification 0.96 Section 3.7 - * Periodic Frame Span Traversal Node (FSTN) - * - * Manages split interrupt transactions (using TT) that span frame boundaries - * into uframes 0/1; see 4.12.2.2. In those uframes, a "save place" FSTN - * makes the HC jump (back) to a QH to scan for fs/ls QH completions until - * it hits a "restore" FSTN; then it returns to finish other uframe 0/1 work. - */ -struct fotg210_fstn { - __hc32 hw_next; /* any periodic q entry */ - __hc32 hw_prev; /* qh or FOTG210_LIST_END */ - - /* the rest is HCD-private */ - dma_addr_t fstn_dma; - union fotg210_shadow fstn_next; /* ptr to periodic q entry */ -} __aligned(32); - -/*-------------------------------------------------------------------------*/ - -/* Prepare the PORTSC wakeup flags during controller suspend/resume */ - -#define fotg210_prepare_ports_for_controller_suspend(fotg210, do_wakeup) \ - fotg210_adjust_port_wakeup_flags(fotg210, true, do_wakeup); - -#define fotg210_prepare_ports_for_controller_resume(fotg210) \ - fotg210_adjust_port_wakeup_flags(fotg210, false, false); - -/*-------------------------------------------------------------------------*/ - -/* - * Some EHCI controllers have a Transaction Translator built into the - * root hub. This is a non-standard feature. Each controller will need - * to add code to the following inline functions, and call them as - * needed (mostly in root hub code). - */ - -static inline unsigned int -fotg210_get_speed(struct fotg210_hcd *fotg210, unsigned int portsc) -{ - return (readl(&fotg210->regs->otgcsr) - & OTGCSR_HOST_SPD_TYP) >> 22; -} - -/* Returns the speed of a device attached to a port on the root hub. */ -static inline unsigned int -fotg210_port_speed(struct fotg210_hcd *fotg210, unsigned int portsc) -{ - switch (fotg210_get_speed(fotg210, portsc)) { - case 0: - return 0; - case 1: - return USB_PORT_STAT_LOW_SPEED; - case 2: - default: - return USB_PORT_STAT_HIGH_SPEED; - } -} - -/*-------------------------------------------------------------------------*/ - -#define fotg210_has_fsl_portno_bug(e) (0) - -/* - * While most USB host controllers implement their registers in - * little-endian format, a minority (celleb companion chip) implement - * them in big endian format. - * - * This attempts to support either format at compile time without a - * runtime penalty, or both formats with the additional overhead - * of checking a flag bit. - * - */ - -#define fotg210_big_endian_mmio(e) 0 -#define fotg210_big_endian_capbase(e) 0 - -static inline unsigned int fotg210_readl(const struct fotg210_hcd *fotg210, - __u32 __iomem *regs) -{ - return readl(regs); -} - -static inline void fotg210_writel(const struct fotg210_hcd *fotg210, - const unsigned int val, __u32 __iomem *regs) -{ - writel(val, regs); -} - -/* cpu to fotg210 */ -static inline __hc32 cpu_to_hc32(const struct fotg210_hcd *fotg210, const u32 x) -{ - return cpu_to_le32(x); -} - -/* fotg210 to cpu */ -static inline u32 hc32_to_cpu(const struct fotg210_hcd *fotg210, const __hc32 x) -{ - return le32_to_cpu(x); -} - -static inline u32 hc32_to_cpup(const struct fotg210_hcd *fotg210, - const __hc32 *x) -{ - return le32_to_cpup(x); -} - -/*-------------------------------------------------------------------------*/ - -static inline unsigned fotg210_read_frame_index(struct fotg210_hcd *fotg210) -{ - return fotg210_readl(fotg210, &fotg210->regs->frame_index); -} - -#define fotg210_itdlen(urb, desc, t) ({ \ - usb_pipein((urb)->pipe) ? \ - (desc)->length - FOTG210_ITD_LENGTH(t) : \ - FOTG210_ITD_LENGTH(t); \ -}) -/*-------------------------------------------------------------------------*/ - -#ifndef DEBUG -#define STUB_DEBUG_FILES -#endif /* DEBUG */ - -/*-------------------------------------------------------------------------*/ - -#endif /* __LINUX_FOTG210_H */ |