drivers/usb/host/fhci.h

   1 /*
   2  * Freescale QUICC Engine USB Host Controller Driver
   3  *
   4  * Copyright (c) Freescale Semicondutor, Inc. 2006.
   5  *               Shlomi Gridish <gridish@freescale.com>
   6  *               Jerry Huang <Chang-Ming.Huang@freescale.com>
   7  * Copyright (c) Logic Product Development, Inc. 2007
   8  *               Peter Barada <peterb@logicpd.com>
   9  * Copyright (c) MontaVista Software, Inc. 2008.
  10  *               Anton Vorontsov <avorontsov@ru.mvista.com>
  11  *
  12  * This program is free software; you can redistribute  it and/or modify it
  13  * under  the terms of  the GNU General  Public License as published by the
  14  * Free Software Foundation;  either version 2 of the  License, or (at your
  15  * option) any later version.
  16  */
  17
  18 #ifndef __FHCI_H
  19 #define __FHCI_H
  20
  21 #include <linux/kernel.h>
  22 #include <linux/types.h>
  23 #include <linux/spinlock.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/kfifo.h>
  26 #include <linux/io.h>
  27 #include <linux/usb.h>
  28 #include <asm/qe.h>
  29 #include "../core/hcd.h"
  30
  31 #define USB_CLOCK       48000000
  32
  33 #define FHCI_PRAM_SIZE 0x100
  34
  35 #define MAX_EDS         32
  36 #define MAX_TDS         32
  37
  38
  39 /* CRC16 field size */
  40 #define CRC_SIZE 2
  41
  42 /* USB protocol overhead for each frame transmitted from the host */
  43 #define PROTOCOL_OVERHEAD 7
  44
  45 /* Packet structure, info field */
  46 #define PKT_PID_DATA0           0x80000000 /* PID - Data toggle zero */
  47 #define PKT_PID_DATA1           0x40000000 /* PID - Data toggle one  */
  48 #define PKT_PID_SETUP           0x20000000 /* PID - Setup bit */
  49 #define PKT_SETUP_STATUS        0x10000000 /* Setup status bit */
  50 #define PKT_SETADDR_STATUS      0x08000000 /* Set address status bit */
  51 #define PKT_SET_HOST_LAST       0x04000000 /* Last data packet */
  52 #define PKT_HOST_DATA           0x02000000 /* Data packet */
  53 #define PKT_FIRST_IN_FRAME      0x01000000 /* First packet in the frame */
  54 #define PKT_TOKEN_FRAME         0x00800000 /* Token packet */
  55 #define PKT_ZLP                 0x00400000 /* Zero length packet */
  56 #define PKT_IN_TOKEN_FRAME      0x00200000 /* IN token packet */
  57 #define PKT_OUT_TOKEN_FRAME     0x00100000 /* OUT token packet */
  58 #define PKT_SETUP_TOKEN_FRAME   0x00080000 /* SETUP token packet */
  59 #define PKT_STALL_FRAME         0x00040000 /* STALL packet */
  60 #define PKT_NACK_FRAME          0x00020000 /* NACK packet */
  61 #define PKT_NO_PID              0x00010000 /* No PID */
  62 #define PKT_NO_CRC              0x00008000 /* don't append CRC */
  63 #define PKT_HOST_COMMAND        0x00004000 /* Host command packet */
  64 #define PKT_DUMMY_PACKET        0x00002000 /* Dummy packet, used for mmm */
  65 #define PKT_LOW_SPEED_PACKET    0x00001000 /* Low-Speed packet */
  66
  67 #define TRANS_OK                (0)
  68 #define TRANS_INPROGRESS        (-1)
  69 #define TRANS_DISCARD           (-2)
  70 #define TRANS_FAIL              (-3)
  71
  72 #define PS_INT          0
  73 #define PS_DISCONNECTED 1
  74 #define PS_CONNECTED    2
  75 #define PS_READY        3
  76 #define PS_MISSING      4
  77
  78 /* Transfer Descriptor status field */
  79 #define USB_TD_OK               0x00000000 /* TD transmited or received ok */
  80 #define USB_TD_INPROGRESS       0x80000000 /* TD is being transmitted */
  81 #define USB_TD_RX_ER_NONOCT     0x40000000 /* Tx Non Octet Aligned Packet */
  82 #define USB_TD_RX_ER_BITSTUFF   0x20000000 /* Frame Aborted-Received pkt */
  83 #define USB_TD_RX_ER_CRC        0x10000000 /* CRC error */
  84 #define USB_TD_RX_ER_OVERUN     0x08000000 /* Over - run occured */
  85 #define USB_TD_RX_ER_PID        0x04000000 /* wrong PID received */
  86 #define USB_TD_RX_DATA_UNDERUN  0x02000000 /* shorter than expected */
  87 #define USB_TD_RX_DATA_OVERUN   0x01000000 /* longer than expected */
  88 #define USB_TD_TX_ER_NAK        0x00800000 /* NAK handshake */
  89 #define USB_TD_TX_ER_STALL      0x00400000 /* STALL handshake */
  90 #define USB_TD_TX_ER_TIMEOUT    0x00200000 /* transmit time out */
  91 #define USB_TD_TX_ER_UNDERUN    0x00100000 /* transmit underrun */
  92
  93 #define USB_TD_ERROR (USB_TD_RX_ER_NONOCT | USB_TD_RX_ER_BITSTUFF | \
  94                 USB_TD_RX_ER_CRC | USB_TD_RX_ER_OVERUN | USB_TD_RX_ER_PID | \
  95                 USB_TD_RX_DATA_UNDERUN | USB_TD_RX_DATA_OVERUN | \
  96                 USB_TD_TX_ER_NAK | USB_TD_TX_ER_STALL | \
  97                 USB_TD_TX_ER_TIMEOUT | USB_TD_TX_ER_UNDERUN)
  98
  99 /* Transfer Descriptor toggle field */
 100 #define USB_TD_TOGGLE_DATA0     0
 101 #define USB_TD_TOGGLE_DATA1     1
 102 #define USB_TD_TOGGLE_CARRY     2
 103
 104 /* #define MULTI_DATA_BUS */
 105
 106 /* Bus mode register RBMR/TBMR */
 107 #define BUS_MODE_GBL    0x20    /* Global snooping */
 108 #define BUS_MODE_BO     0x18    /* Byte ordering */
 109 #define BUS_MODE_BO_BE  0x10    /* Byte ordering - Big-endian */
 110 #define BUS_MODE_DTB    0x02    /* Data bus */
 111
 112 /* FHCI QE USB Register Description */
 113
 114 /* USB Mode Register bit define */
 115 #define USB_MODE_EN             0x01
 116 #define USB_MODE_HOST           0x02
 117 #define USB_MODE_TEST           0x04
 118 #define USB_MODE_SFTE           0x08
 119 #define USB_MODE_RESUME         0x40
 120 #define USB_MODE_LSS            0x80
 121
 122 /* USB Slave Address Register Mask */
 123 #define USB_SLVADDR_MASK        0x7F
 124
 125 /* USB Endpoint register define */
 126 #define USB_EPNUM_MASK          0xF000
 127 #define USB_EPNUM_SHIFT         12
 128
 129 #define USB_TRANS_MODE_SHIFT    8
 130 #define USB_TRANS_CTR           0x0000
 131 #define USB_TRANS_INT           0x0100
 132 #define USB_TRANS_BULK          0x0200
 133 #define USB_TRANS_ISO           0x0300
 134
 135 #define USB_EP_MF               0x0020
 136 #define USB_EP_RTE              0x0010
 137
 138 #define USB_THS_SHIFT           2
 139 #define USB_THS_MASK            0x000c
 140 #define USB_THS_NORMAL          0x0
 141 #define USB_THS_IGNORE_IN       0x0004
 142 #define USB_THS_NACK            0x0008
 143 #define USB_THS_STALL           0x000c
 144
 145 #define USB_RHS_SHIFT           0
 146 #define USB_RHS_MASK            0x0003
 147 #define USB_RHS_NORMAL          0x0
 148 #define USB_RHS_IGNORE_OUT      0x0001
 149 #define USB_RHS_NACK            0x0002
 150 #define USB_RHS_STALL           0x0003
 151
 152 #define USB_RTHS_MASK           0x000f
 153
 154 /* USB Command Register define */
 155 #define USB_CMD_STR_FIFO        0x80
 156 #define USB_CMD_FLUSH_FIFO      0x40
 157 #define USB_CMD_ISFT            0x20
 158 #define USB_CMD_DSFT            0x10
 159 #define USB_CMD_EP_MASK         0x03
 160
 161 /* USB Event and Mask Register define */
 162 #define USB_E_MSF_MASK          0x0800
 163 #define USB_E_SFT_MASK          0x0400
 164 #define USB_E_RESET_MASK        0x0200
 165 #define USB_E_IDLE_MASK         0x0100
 166 #define USB_E_TXE4_MASK         0x0080
 167 #define USB_E_TXE3_MASK         0x0040
 168 #define USB_E_TXE2_MASK         0x0020
 169 #define USB_E_TXE1_MASK         0x0010
 170 #define USB_E_SOF_MASK          0x0008
 171 #define USB_E_BSY_MASK          0x0004
 172 #define USB_E_TXB_MASK          0x0002
 173 #define USB_E_RXB_MASK          0x0001
 174
 175 /* Freescale USB Host controller registers */
 176 struct fhci_regs {
 177         u8 usb_mod;             /* mode register */
 178         u8 usb_addr;            /* address register */
 179         u8 usb_comm;            /* command register */
 180         u8 reserved1[1];
 181         __be16 usb_ep[4];       /* endpoint register */
 182         u8 reserved2[4];
 183         __be16 usb_event;       /* event register */
 184         u8 reserved3[2];
 185         __be16 usb_mask;        /* mask register */
 186         u8 reserved4[1];
 187         u8 usb_status;          /* status register */
 188         __be16 usb_sof_tmr;     /* Start Of Frame timer */
 189         u8 reserved5[2];
 190         __be16 usb_frame_num;   /* frame number register */
 191         u8 reserved6[1];
 192 };
 193
 194 /* Freescale USB HOST */
 195 struct fhci_pram {
 196         __be16 ep_ptr[4];       /* Endpoint porter reg */
 197         __be32 rx_state;        /* Rx internal state */
 198         __be32 rx_ptr;          /* Rx internal data pointer */
 199         __be16 frame_num;       /* Frame number */
 200         __be16 rx_cnt;          /* Rx byte count */
 201         __be32 rx_temp;         /* Rx temp */
 202         __be32 rx_data_temp;    /* Rx data temp */
 203         __be16 rx_u_ptr;        /* Rx microcode return address temp */
 204         u8 reserved1[2];        /* reserved area */
 205         __be32 sof_tbl;         /* SOF lookup table pointer */
 206         u8 sof_u_crc_temp;      /* SOF micorcode CRC5 temp reg */
 207         u8 reserved2[0xdb];
 208 };
 209
 210 /* Freescale USB Endpoint*/
 211 struct fhci_ep_pram {
 212         __be16 rx_base;         /* Rx BD base address */
 213         __be16 tx_base;         /* Tx BD base address */
 214         u8 rx_func_code;        /* Rx function code */
 215         u8 tx_func_code;        /* Tx function code */
 216         __be16 rx_buff_len;     /* Rx buffer length */
 217         __be16 rx_bd_ptr;       /* Rx BD pointer */
 218         __be16 tx_bd_ptr;       /* Tx BD pointer */
 219         __be32 tx_state;        /* Tx internal state */
 220         __be32 tx_ptr;          /* Tx internal data pointer */
 221         __be16 tx_crc;          /* temp transmit CRC */
 222         __be16 tx_cnt;          /* Tx byte count */
 223         __be32 tx_temp;         /* Tx temp */
 224         __be16 tx_u_ptr;        /* Tx microcode return address temp */
 225         __be16 reserved;
 226 };
 227
 228 struct fhci_controller_list {
 229         struct list_head ctrl_list;     /* control endpoints */
 230         struct list_head bulk_list;     /* bulk endpoints */
 231         struct list_head iso_list;      /* isochronous endpoints */
 232         struct list_head intr_list;     /* interruput endpoints */
 233         struct list_head done_list;     /* done transfers */
 234 };
 235
 236 struct virtual_root_hub {
 237         int dev_num;    /* USB address of the root hub */
 238         u32 feature;    /* indicates what feature has been set */
 239         struct usb_hub_status hub;
 240         struct usb_port_status port;
 241 };
 242
 243 enum fhci_gpios {
 244         GPIO_USBOE = 0,
 245         GPIO_USBTP,
 246         GPIO_USBTN,
 247         GPIO_USBRP,
 248         GPIO_USBRN,
 249         /* these are optional */
 250         GPIO_SPEED,
 251         GPIO_POWER,
 252         NUM_GPIOS,
 253 };
 254
 255 enum fhci_pins {
 256         PIN_USBOE = 0,
 257         PIN_USBTP,
 258         PIN_USBTN,
 259         NUM_PINS,
 260 };
 261
 262 struct fhci_hcd {
 263         enum qe_clock fullspeed_clk;
 264         enum qe_clock lowspeed_clk;
 265         struct qe_pin *pins[NUM_PINS];
 266         int gpios[NUM_GPIOS];
 267         bool alow_gpios[NUM_GPIOS];
 268
 269         struct fhci_regs __iomem *regs; /* I/O memory used to communicate */
 270         struct fhci_pram __iomem *pram; /* Parameter RAM */
 271         struct gtm_timer *timer;
 272
 273         spinlock_t lock;
 274         struct fhci_usb *usb_lld; /* Low-level driver */
 275         struct virtual_root_hub *vroot_hub; /* the virtual root hub */
 276         int active_urbs;
 277         struct fhci_controller_list *hc_list;
 278         struct tasklet_struct *process_done_task; /* tasklet for done list */
 279
 280         struct list_head empty_eds;
 281         struct list_head empty_tds;
 282
 283 #ifdef CONFIG_FHCI_DEBUG
 284         int usb_irq_stat[13];
 285         struct dentry *dfs_root;
 286         struct dentry *dfs_regs;
 287         struct dentry *dfs_irq_stat;
 288 #endif
 289 };
 290
 291 #define USB_FRAME_USAGE 90
 292 #define FRAME_TIME_USAGE (USB_FRAME_USAGE*10)   /* frame time usage */
 293 #define SW_FIX_TIME_BETWEEN_TRANSACTION 150     /* SW */
 294 #define MAX_BYTES_PER_FRAME (USB_FRAME_USAGE*15)
 295 #define MAX_PERIODIC_FRAME_USAGE 90
 296
 297 /* transaction type */
 298 enum fhci_ta_type {
 299         FHCI_TA_IN = 0, /* input transaction */
 300         FHCI_TA_OUT,    /* output transaction */
 301         FHCI_TA_SETUP,  /* setup transaction */
 302 };
 303
 304 /* transfer mode */
 305 enum fhci_tf_mode {
 306         FHCI_TF_CTRL = 0,
 307         FHCI_TF_ISO,
 308         FHCI_TF_BULK,
 309         FHCI_TF_INTR,
 310 };
 311
 312 enum fhci_speed {
 313         FHCI_FULL_SPEED,
 314         FHCI_LOW_SPEED,
 315 };
 316
 317 /* endpoint state */
 318 enum fhci_ed_state {
 319         FHCI_ED_NEW = 0, /* pipe is new */
 320         FHCI_ED_OPER,    /* pipe is operating */
 321         FHCI_ED_URB_DEL, /* pipe is in hold because urb is being deleted */
 322         FHCI_ED_SKIP,    /* skip this pipe */
 323         FHCI_ED_HALTED,  /* pipe is halted */
 324 };
 325
 326 enum fhci_port_status {
 327         FHCI_PORT_POWER_OFF = 0,
 328         FHCI_PORT_DISABLED,
 329         FHCI_PORT_DISCONNECTING,
 330         FHCI_PORT_WAITING,      /* waiting for connection */
 331         FHCI_PORT_FULL,         /* full speed connected */
 332         FHCI_PORT_LOW,          /* low speed connected */
 333 };
 334
 335 enum fhci_mem_alloc {
 336         MEM_CACHABLE_SYS = 0x00000001,  /* primary DDR,cachable */
 337         MEM_NOCACHE_SYS = 0x00000004,   /* primary DDR,non-cachable */
 338         MEM_SECONDARY = 0x00000002,     /* either secondary DDR or SDRAM */
 339         MEM_PRAM = 0x00000008,          /* multi-user RAM identifier */
 340 };
 341
 342 /* USB default parameters*/
 343 #define DEFAULT_RING_LEN        8
 344 #define DEFAULT_DATA_MEM        MEM_CACHABLE_SYS
 345
 346 struct ed {
 347         u8 dev_addr;            /* device address */
 348         u8 ep_addr;             /* endpoint address */
 349         enum fhci_tf_mode mode; /* USB transfer mode */
 350         enum fhci_speed speed;
 351         unsigned int max_pkt_size;
 352         enum fhci_ed_state state;
 353         struct list_head td_list; /* a list of all queued TD to this pipe */
 354         struct list_head node;
 355
 356         /* read only parameters, should be cleared upon initialization */
 357         u8 toggle_carry;        /* toggle carry from the last TD submitted */
 358         u32 last_iso;           /* time stamp of last queued ISO transfer */
 359         struct td *td_head;     /* a pointer to the current TD handled */
 360 };
 361
 362 struct td {
 363         void *data;              /* a pointer to the data buffer */
 364         unsigned int len;        /* length of the data to be submitted */
 365         unsigned int actual_len; /* actual bytes transfered on this td */
 366         enum fhci_ta_type type;  /* transaction type */
 367         u8 toggle;               /* toggle for next trans. within this TD */
 368         u16 iso_index;           /* ISO transaction index */
 369         u16 start_frame;         /* start frame time stamp */
 370         u16 interval;            /* interval between trans. (for ISO/Intr) */
 371         u32 status;              /* status of the TD */
 372         struct ed *ed;           /* a handle to the corresponding ED */
 373         struct urb *urb;         /* a handle to the corresponding URB */
 374         bool ioc;                /* Inform On Completion */
 375         struct list_head node;
 376
 377         /* read only parameters should be cleared upon initialization */
 378         struct packet *pkt;
 379         int nak_cnt;
 380         int error_cnt;
 381         struct list_head frame_lh;
 382 };
 383
 384 struct packet {
 385         u8 *data;       /* packet data */
 386         u32 len;        /* packet length */
 387         u32 status;     /* status of the packet - equivalent to the status
 388                          * field for the corresponding structure td */
 389         u32 info;       /* packet information */
 390         void __iomem *priv_data; /* private data of the driver (TDs or BDs) */
 391 };
 392
 393 /* struct for each URB */
 394 #define URB_INPROGRESS  0
 395 #define URB_DEL         1
 396
 397 /* URB states (state field) */
 398 #define US_BULK         0
 399 #define US_BULK0        1
 400
 401 /* three setup states */
 402 #define US_CTRL_SETUP   2
 403 #define US_CTRL_DATA    1
 404 #define US_CTRL_ACK     0
 405
 406 #define EP_ZERO 0
 407
 408 struct urb_priv {
 409         int num_of_tds;
 410         int tds_cnt;
 411         int state;
 412
 413         struct td **tds;
 414         struct ed *ed;
 415         struct timer_list time_out;
 416 };
 417
 418 struct endpoint {
 419         /* Pointer to ep parameter RAM */
 420         struct fhci_ep_pram __iomem *ep_pram_ptr;
 421
 422         /* Host transactions */
 423         struct usb_td __iomem *td_base; /* first TD in the ring */
 424         struct usb_td __iomem *conf_td; /* next TD for confirm after transac */
 425         struct usb_td __iomem *empty_td;/* next TD for new transaction req. */
 426         struct kfifo *empty_frame_Q;  /* Empty frames list to use */
 427         struct kfifo *conf_frame_Q;   /* frames passed to TDs,waiting for tx */
 428         struct kfifo *dummy_packets_Q;/* dummy packets for the CRC overun */
 429
 430         bool already_pushed_dummy_bd;
 431 };
 432
 433 /* struct for each 1mSec frame time */
 434 #define FRAME_IS_TRANSMITTED            0x00
 435 #define FRAME_TIMER_END_TRANSMISSION    0x01
 436 #define FRAME_DATA_END_TRANSMISSION     0x02
 437 #define FRAME_END_TRANSMISSION          0x03
 438 #define FRAME_IS_PREPARED               0x04
 439
 440 struct fhci_time_frame {
 441         u16 frame_num;   /* frame number */
 442         u16 total_bytes; /* total bytes submitted within this frame */
 443         u8 frame_status; /* flag that indicates to stop fill this frame */
 444         struct list_head tds_list; /* all tds of this frame */
 445 };
 446
 447 /* internal driver structure*/
 448 struct fhci_usb {
 449         u16 saved_msk;           /* saving of the USB mask register */
 450         struct endpoint *ep0;    /* pointer for endpoint0 structure */
 451         int intr_nesting_cnt;    /* interrupt nesting counter */
 452         u16 max_frame_usage;     /* max frame time usage,in micro-sec */
 453         u16 max_bytes_per_frame; /* max byte can be tx in one time frame */
 454         u32 sw_transaction_time; /* sw complete trans time,in micro-sec */
 455         struct fhci_time_frame *actual_frame;
 456         struct fhci_controller_list *hc_list;   /* main structure for hc */
 457         struct virtual_root_hub *vroot_hub;
 458         enum fhci_port_status port_status;      /* v_rh port status */
 459
 460         u32 (*transfer_confirm)(struct fhci_hcd *fhci);
 461
 462         struct fhci_hcd *fhci;
 463 };
 464
 465 /*
 466  * Various helpers and prototypes below.
 467  */
 468
 469 static inline u16 get_frame_num(struct fhci_hcd *fhci)
 470 {
 471         return in_be16(&fhci->pram->frame_num) & 0x07ff;
 472 }
 473
 474 #define fhci_dbg(fhci, fmt, args...) \
 475                 dev_dbg(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 476 #define fhci_vdbg(fhci, fmt, args...) \
 477                 dev_vdbg(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 478 #define fhci_err(fhci, fmt, args...) \
 479                 dev_err(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 480 #define fhci_info(fhci, fmt, args...) \
 481                 dev_info(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 482 #define fhci_warn(fhci, fmt, args...) \
 483                 dev_warn(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 484
 485 static inline struct fhci_hcd *hcd_to_fhci(struct usb_hcd *hcd)
 486 {
 487         return (struct fhci_hcd *)hcd->hcd_priv;
 488 }
 489
 490 static inline struct usb_hcd *fhci_to_hcd(struct fhci_hcd *fhci)
 491 {
 492         return container_of((void *)fhci, struct usb_hcd, hcd_priv);
 493 }
 494
 495 /* fifo of pointers */
 496 static inline struct kfifo *cq_new(int size)
 497 {
 498         return kfifo_alloc(size * sizeof(void *), GFP_KERNEL, NULL);
 499 }
 500
 501 static inline void cq_delete(struct kfifo *kfifo)
 502 {
 503         kfifo_free(kfifo);
 504 }
 505
 506 static inline unsigned int cq_howmany(struct kfifo *kfifo)
 507 {
 508         return __kfifo_len(kfifo) / sizeof(void *);
 509 }
 510
 511 static inline int cq_put(struct kfifo *kfifo, void *p)
 512 {
 513         return __kfifo_put(kfifo, (void *)&p, sizeof(p));
 514 }
 515
 516 static inline void *cq_get(struct kfifo *kfifo)
 517 {
 518         void *p = NULL;
 519
 520         __kfifo_get(kfifo, (void *)&p, sizeof(p));
 521         return p;
 522 }
 523
 524 /* fhci-hcd.c */
 525 void fhci_start_sof_timer(struct fhci_hcd *fhci);
 526 void fhci_stop_sof_timer(struct fhci_hcd *fhci);
 527 u16 fhci_get_sof_timer_count(struct fhci_usb *usb);
 528 void fhci_usb_enable_interrupt(struct fhci_usb *usb);
 529 void fhci_usb_disable_interrupt(struct fhci_usb *usb);
 530 int fhci_ioports_check_bus_state(struct fhci_hcd *fhci);
 531
 532 /* fhci-mem.c */
 533 void fhci_recycle_empty_td(struct fhci_hcd *fhci, struct td *td);
 534 void fhci_recycle_empty_ed(struct fhci_hcd *fhci, struct ed *ed);
 535 struct ed *fhci_get_empty_ed(struct fhci_hcd *fhci);
 536 struct td *fhci_td_fill(struct fhci_hcd *fhci, struct urb *urb,
 537                         struct urb_priv *urb_priv, struct ed *ed, u16 index,
 538                         enum fhci_ta_type type, int toggle, u8 *data, u32 len,
 539                         u16 interval, u16 start_frame, bool ioc);
 540 void fhci_add_tds_to_ed(struct ed *ed, struct td **td_list, int number);
 541
 542 /* fhci-hub.c */
 543 void fhci_config_transceiver(struct fhci_hcd *fhci,
 544                         enum fhci_port_status status);
 545 void fhci_port_disable(struct fhci_hcd *fhci);
 546 void fhci_port_enable(void *lld);
 547 void fhci_io_port_generate_reset(struct fhci_hcd *fhci);
 548 void fhci_port_reset(void *lld);
 549 int fhci_hub_status_data(struct usb_hcd *hcd, char *buf);
 550 int fhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 551                      u16 wIndex, char *buf, u16 wLength);
 552
 553 /* fhci-tds.c */
 554 void fhci_flush_bds(struct fhci_usb *usb);
 555 void fhci_flush_actual_frame(struct fhci_usb *usb);
 556 u32 fhci_host_transaction(struct fhci_usb *usb, struct packet *pkt,
 557                           enum fhci_ta_type trans_type, u8 dest_addr,
 558                           u8 dest_ep, enum fhci_tf_mode trans_mode,
 559                           enum fhci_speed dest_speed, u8 data_toggle);
 560 void fhci_host_transmit_actual_frame(struct fhci_usb *usb);
 561 void fhci_tx_conf_interrupt(struct fhci_usb *usb);
 562 void fhci_push_dummy_bd(struct endpoint *ep);
 563 u32 fhci_create_ep(struct fhci_usb *usb, enum fhci_mem_alloc data_mem,
 564                    u32 ring_len);
 565 void fhci_init_ep_registers(struct fhci_usb *usb,
 566                             struct endpoint *ep,
 567                             enum fhci_mem_alloc data_mem);
 568 void fhci_ep0_free(struct fhci_usb *usb);
 569
 570 /* fhci-sched.c */
 571 extern struct tasklet_struct fhci_tasklet;
 572 void fhci_transaction_confirm(struct fhci_usb *usb, struct packet *pkt);
 573 void fhci_flush_all_transmissions(struct fhci_usb *usb);
 574 void fhci_schedule_transactions(struct fhci_usb *usb);
 575 void fhci_device_connected_interrupt(struct fhci_hcd *fhci);
 576 void fhci_device_disconnected_interrupt(struct fhci_hcd *fhci);
 577 void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb);
 578 u32 fhci_transfer_confirm_callback(struct fhci_hcd *fhci);
 579 irqreturn_t fhci_irq(struct usb_hcd *hcd);
 580 irqreturn_t fhci_frame_limit_timer_irq(int irq, void *_hcd);
 581
 582 /* fhci-q.h */
 583 void fhci_urb_complete_free(struct fhci_hcd *fhci, struct urb *urb);
 584 struct td *fhci_remove_td_from_ed(struct ed *ed);
 585 struct td *fhci_remove_td_from_frame(struct fhci_time_frame *frame);
 586 void fhci_move_td_from_ed_to_done_list(struct fhci_usb *usb, struct ed *ed);
 587 struct td *fhci_peek_td_from_frame(struct fhci_time_frame *frame);
 588 void fhci_add_td_to_frame(struct fhci_time_frame *frame, struct td *td);
 589 struct td *fhci_remove_td_from_done_list(struct fhci_controller_list *p_list);
 590 void fhci_done_td(struct urb *urb, struct td *td);
 591 void fhci_del_ed_list(struct fhci_hcd *fhci, struct ed *ed);
 592
 593 #ifdef CONFIG_FHCI_DEBUG
 594
 595 void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er);
 596 void fhci_dfs_destroy(struct fhci_hcd *fhci);
 597 void fhci_dfs_create(struct fhci_hcd *fhci);
 598
 599 #else
 600
 601 static inline void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er) {}
 602 static inline void fhci_dfs_destroy(struct fhci_hcd *fhci) {}
 603 static inline void fhci_dfs_create(struct fhci_hcd *fhci) {}
 604
 605 #endif /* CONFIG_FHCI_DEBUG */
 606
 607 #endif /* __FHCI_H */