drivers/usb/host/fhci.h

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Freescale QUICC Engine USB Host Controller Driver
   4  *
   5  * Copyright (c) Freescale Semicondutor, Inc. 2006.
   6  *               Shlomi Gridish <gridish@freescale.com>
   7  *               Jerry Huang <Chang-Ming.Huang@freescale.com>
   8  * Copyright (c) Logic Product Development, Inc. 2007
   9  *               Peter Barada <peterb@logicpd.com>
  10  * Copyright (c) MontaVista Software, Inc. 2008.
  11  *               Anton Vorontsov <avorontsov@ru.mvista.com>
  12  */
  13
  14 #ifndef __FHCI_H
  15 #define __FHCI_H
  16
  17 #include <linux/kernel.h>
  18 #include <linux/types.h>
  19 #include <linux/bug.h>
  20 #include <linux/spinlock.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/kfifo.h>
  23 #include <linux/io.h>
  24 #include <linux/usb.h>
  25 #include <linux/usb/hcd.h>
  26 #include <soc/fsl/qe/qe.h>
  27 #include <soc/fsl/qe/immap_qe.h>
  28
  29 #define USB_CLOCK       48000000
  30
  31 #define FHCI_PRAM_SIZE 0x100
  32
  33 #define MAX_EDS         32
  34 #define MAX_TDS         32
  35
  36
  37 /* CRC16 field size */
  38 #define CRC_SIZE 2
  39
  40 /* USB protocol overhead for each frame transmitted from the host */
  41 #define PROTOCOL_OVERHEAD 7
  42
  43 /* Packet structure, info field */
  44 #define PKT_PID_DATA0           0x80000000 /* PID - Data toggle zero */
  45 #define PKT_PID_DATA1           0x40000000 /* PID - Data toggle one  */
  46 #define PKT_PID_SETUP           0x20000000 /* PID - Setup bit */
  47 #define PKT_SETUP_STATUS        0x10000000 /* Setup status bit */
  48 #define PKT_SETADDR_STATUS      0x08000000 /* Set address status bit */
  49 #define PKT_SET_HOST_LAST       0x04000000 /* Last data packet */
  50 #define PKT_HOST_DATA           0x02000000 /* Data packet */
  51 #define PKT_FIRST_IN_FRAME      0x01000000 /* First packet in the frame */
  52 #define PKT_TOKEN_FRAME         0x00800000 /* Token packet */
  53 #define PKT_ZLP                 0x00400000 /* Zero length packet */
  54 #define PKT_IN_TOKEN_FRAME      0x00200000 /* IN token packet */
  55 #define PKT_OUT_TOKEN_FRAME     0x00100000 /* OUT token packet */
  56 #define PKT_SETUP_TOKEN_FRAME   0x00080000 /* SETUP token packet */
  57 #define PKT_STALL_FRAME         0x00040000 /* STALL packet */
  58 #define PKT_NACK_FRAME          0x00020000 /* NACK packet */
  59 #define PKT_NO_PID              0x00010000 /* No PID */
  60 #define PKT_NO_CRC              0x00008000 /* don't append CRC */
  61 #define PKT_HOST_COMMAND        0x00004000 /* Host command packet */
  62 #define PKT_DUMMY_PACKET        0x00002000 /* Dummy packet, used for mmm */
  63 #define PKT_LOW_SPEED_PACKET    0x00001000 /* Low-Speed packet */
  64
  65 #define TRANS_OK                (0)
  66 #define TRANS_INPROGRESS        (-1)
  67 #define TRANS_DISCARD           (-2)
  68 #define TRANS_FAIL              (-3)
  69
  70 #define PS_INT          0
  71 #define PS_DISCONNECTED 1
  72 #define PS_CONNECTED    2
  73 #define PS_READY        3
  74 #define PS_MISSING      4
  75
  76 /* Transfer Descriptor status field */
  77 #define USB_TD_OK               0x00000000 /* TD transmited or received ok */
  78 #define USB_TD_INPROGRESS       0x80000000 /* TD is being transmitted */
  79 #define USB_TD_RX_ER_NONOCT     0x40000000 /* Tx Non Octet Aligned Packet */
  80 #define USB_TD_RX_ER_BITSTUFF   0x20000000 /* Frame Aborted-Received pkt */
  81 #define USB_TD_RX_ER_CRC        0x10000000 /* CRC error */
  82 #define USB_TD_RX_ER_OVERUN     0x08000000 /* Over - run occurred */
  83 #define USB_TD_RX_ER_PID        0x04000000 /* wrong PID received */
  84 #define USB_TD_RX_DATA_UNDERUN  0x02000000 /* shorter than expected */
  85 #define USB_TD_RX_DATA_OVERUN   0x01000000 /* longer than expected */
  86 #define USB_TD_TX_ER_NAK        0x00800000 /* NAK handshake */
  87 #define USB_TD_TX_ER_STALL      0x00400000 /* STALL handshake */
  88 #define USB_TD_TX_ER_TIMEOUT    0x00200000 /* transmit time out */
  89 #define USB_TD_TX_ER_UNDERUN    0x00100000 /* transmit underrun */
  90
  91 #define USB_TD_ERROR (USB_TD_RX_ER_NONOCT | USB_TD_RX_ER_BITSTUFF | \
  92                 USB_TD_RX_ER_CRC | USB_TD_RX_ER_OVERUN | USB_TD_RX_ER_PID | \
  93                 USB_TD_RX_DATA_UNDERUN | USB_TD_RX_DATA_OVERUN | \
  94                 USB_TD_TX_ER_NAK | USB_TD_TX_ER_STALL | \
  95                 USB_TD_TX_ER_TIMEOUT | USB_TD_TX_ER_UNDERUN)
  96
  97 /* Transfer Descriptor toggle field */
  98 #define USB_TD_TOGGLE_DATA0     0
  99 #define USB_TD_TOGGLE_DATA1     1
 100 #define USB_TD_TOGGLE_CARRY     2
 101
 102 /* #define MULTI_DATA_BUS */
 103
 104 /* Bus mode register RBMR/TBMR */
 105 #define BUS_MODE_GBL    0x20    /* Global snooping */
 106 #define BUS_MODE_BO     0x18    /* Byte ordering */
 107 #define BUS_MODE_BO_BE  0x10    /* Byte ordering - Big-endian */
 108 #define BUS_MODE_DTB    0x02    /* Data bus */
 109
 110 /* FHCI QE USB Register Description */
 111
 112 /* USB Mode Register bit define */
 113 #define USB_MODE_EN             0x01
 114 #define USB_MODE_HOST           0x02
 115 #define USB_MODE_TEST           0x04
 116 #define USB_MODE_SFTE           0x08
 117 #define USB_MODE_RESUME         0x40
 118 #define USB_MODE_LSS            0x80
 119
 120 /* USB Slave Address Register Mask */
 121 #define USB_SLVADDR_MASK        0x7F
 122
 123 /* USB Endpoint register define */
 124 #define USB_EPNUM_MASK          0xF000
 125 #define USB_EPNUM_SHIFT         12
 126
 127 #define USB_TRANS_MODE_SHIFT    8
 128 #define USB_TRANS_CTR           0x0000
 129 #define USB_TRANS_INT           0x0100
 130 #define USB_TRANS_BULK          0x0200
 131 #define USB_TRANS_ISO           0x0300
 132
 133 #define USB_EP_MF               0x0020
 134 #define USB_EP_RTE              0x0010
 135
 136 #define USB_THS_SHIFT           2
 137 #define USB_THS_MASK            0x000c
 138 #define USB_THS_NORMAL          0x0
 139 #define USB_THS_IGNORE_IN       0x0004
 140 #define USB_THS_NACK            0x0008
 141 #define USB_THS_STALL           0x000c
 142
 143 #define USB_RHS_SHIFT           0
 144 #define USB_RHS_MASK            0x0003
 145 #define USB_RHS_NORMAL          0x0
 146 #define USB_RHS_IGNORE_OUT      0x0001
 147 #define USB_RHS_NACK            0x0002
 148 #define USB_RHS_STALL           0x0003
 149
 150 #define USB_RTHS_MASK           0x000f
 151
 152 /* USB Command Register define */
 153 #define USB_CMD_STR_FIFO        0x80
 154 #define USB_CMD_FLUSH_FIFO      0x40
 155 #define USB_CMD_ISFT            0x20
 156 #define USB_CMD_DSFT            0x10
 157 #define USB_CMD_EP_MASK         0x03
 158
 159 /* USB Event and Mask Register define */
 160 #define USB_E_MSF_MASK          0x0800
 161 #define USB_E_SFT_MASK          0x0400
 162 #define USB_E_RESET_MASK        0x0200
 163 #define USB_E_IDLE_MASK         0x0100
 164 #define USB_E_TXE4_MASK         0x0080
 165 #define USB_E_TXE3_MASK         0x0040
 166 #define USB_E_TXE2_MASK         0x0020
 167 #define USB_E_TXE1_MASK         0x0010
 168 #define USB_E_SOF_MASK          0x0008
 169 #define USB_E_BSY_MASK          0x0004
 170 #define USB_E_TXB_MASK          0x0002
 171 #define USB_E_RXB_MASK          0x0001
 172
 173 /* Freescale USB HOST */
 174 struct fhci_pram {
 175         __be16 ep_ptr[4];       /* Endpoint porter reg */
 176         __be32 rx_state;        /* Rx internal state */
 177         __be32 rx_ptr;          /* Rx internal data pointer */
 178         __be16 frame_num;       /* Frame number */
 179         __be16 rx_cnt;          /* Rx byte count */
 180         __be32 rx_temp;         /* Rx temp */
 181         __be32 rx_data_temp;    /* Rx data temp */
 182         __be16 rx_u_ptr;        /* Rx microcode return address temp */
 183         u8 reserved1[2];        /* reserved area */
 184         __be32 sof_tbl;         /* SOF lookup table pointer */
 185         u8 sof_u_crc_temp;      /* SOF micorcode CRC5 temp reg */
 186         u8 reserved2[0xdb];
 187 };
 188
 189 /* Freescale USB Endpoint*/
 190 struct fhci_ep_pram {
 191         __be16 rx_base;         /* Rx BD base address */
 192         __be16 tx_base;         /* Tx BD base address */
 193         u8 rx_func_code;        /* Rx function code */
 194         u8 tx_func_code;        /* Tx function code */
 195         __be16 rx_buff_len;     /* Rx buffer length */
 196         __be16 rx_bd_ptr;       /* Rx BD pointer */
 197         __be16 tx_bd_ptr;       /* Tx BD pointer */
 198         __be32 tx_state;        /* Tx internal state */
 199         __be32 tx_ptr;          /* Tx internal data pointer */
 200         __be16 tx_crc;          /* temp transmit CRC */
 201         __be16 tx_cnt;          /* Tx byte count */
 202         __be32 tx_temp;         /* Tx temp */
 203         __be16 tx_u_ptr;        /* Tx microcode return address temp */
 204         __be16 reserved;
 205 };
 206
 207 struct fhci_controller_list {
 208         struct list_head ctrl_list;     /* control endpoints */
 209         struct list_head bulk_list;     /* bulk endpoints */
 210         struct list_head iso_list;      /* isochronous endpoints */
 211         struct list_head intr_list;     /* interruput endpoints */
 212         struct list_head done_list;     /* done transfers */
 213 };
 214
 215 struct virtual_root_hub {
 216         int dev_num;    /* USB address of the root hub */
 217         u32 feature;    /* indicates what feature has been set */
 218         struct usb_hub_status hub;
 219         struct usb_port_status port;
 220 };
 221
 222 enum fhci_gpios {
 223         GPIO_USBOE = 0,
 224         GPIO_USBTP,
 225         GPIO_USBTN,
 226         GPIO_USBRP,
 227         GPIO_USBRN,
 228         /* these are optional */
 229         GPIO_SPEED,
 230         GPIO_POWER,
 231         NUM_GPIOS,
 232 };
 233
 234 enum fhci_pins {
 235         PIN_USBOE = 0,
 236         PIN_USBTP,
 237         PIN_USBTN,
 238         NUM_PINS,
 239 };
 240
 241 struct fhci_hcd {
 242         enum qe_clock fullspeed_clk;
 243         enum qe_clock lowspeed_clk;
 244         struct qe_pin *pins[NUM_PINS];
 245         int gpios[NUM_GPIOS];
 246         bool alow_gpios[NUM_GPIOS];
 247
 248         struct qe_usb_ctlr __iomem *regs; /* I/O memory used to communicate */
 249         struct fhci_pram __iomem *pram; /* Parameter RAM */
 250         struct gtm_timer *timer;
 251
 252         spinlock_t lock;
 253         struct fhci_usb *usb_lld; /* Low-level driver */
 254         struct virtual_root_hub *vroot_hub; /* the virtual root hub */
 255         int active_urbs;
 256         struct fhci_controller_list *hc_list;
 257         struct tasklet_struct *process_done_task; /* tasklet for done list */
 258
 259         struct list_head empty_eds;
 260         struct list_head empty_tds;
 261
 262 #ifdef CONFIG_FHCI_DEBUG
 263         int usb_irq_stat[13];
 264         struct dentry *dfs_root;
 265 #endif
 266 };
 267
 268 #define USB_FRAME_USAGE 90
 269 #define FRAME_TIME_USAGE (USB_FRAME_USAGE*10)   /* frame time usage */
 270 #define SW_FIX_TIME_BETWEEN_TRANSACTION 150     /* SW */
 271 #define MAX_BYTES_PER_FRAME (USB_FRAME_USAGE*15)
 272 #define MAX_PERIODIC_FRAME_USAGE 90
 273
 274 /* transaction type */
 275 enum fhci_ta_type {
 276         FHCI_TA_IN = 0, /* input transaction */
 277         FHCI_TA_OUT,    /* output transaction */
 278         FHCI_TA_SETUP,  /* setup transaction */
 279 };
 280
 281 /* transfer mode */
 282 enum fhci_tf_mode {
 283         FHCI_TF_CTRL = 0,
 284         FHCI_TF_ISO,
 285         FHCI_TF_BULK,
 286         FHCI_TF_INTR,
 287 };
 288
 289 enum fhci_speed {
 290         FHCI_FULL_SPEED,
 291         FHCI_LOW_SPEED,
 292 };
 293
 294 /* endpoint state */
 295 enum fhci_ed_state {
 296         FHCI_ED_NEW = 0, /* pipe is new */
 297         FHCI_ED_OPER,    /* pipe is operating */
 298         FHCI_ED_URB_DEL, /* pipe is in hold because urb is being deleted */
 299         FHCI_ED_SKIP,    /* skip this pipe */
 300         FHCI_ED_HALTED,  /* pipe is halted */
 301 };
 302
 303 enum fhci_port_status {
 304         FHCI_PORT_POWER_OFF = 0,
 305         FHCI_PORT_DISABLED,
 306         FHCI_PORT_DISCONNECTING,
 307         FHCI_PORT_WAITING,      /* waiting for connection */
 308         FHCI_PORT_FULL,         /* full speed connected */
 309         FHCI_PORT_LOW,          /* low speed connected */
 310 };
 311
 312 enum fhci_mem_alloc {
 313         MEM_CACHABLE_SYS = 0x00000001,  /* primary DDR,cachable */
 314         MEM_NOCACHE_SYS = 0x00000004,   /* primary DDR,non-cachable */
 315         MEM_SECONDARY = 0x00000002,     /* either secondary DDR or SDRAM */
 316         MEM_PRAM = 0x00000008,          /* multi-user RAM identifier */
 317 };
 318
 319 /* USB default parameters*/
 320 #define DEFAULT_RING_LEN        8
 321 #define DEFAULT_DATA_MEM        MEM_CACHABLE_SYS
 322
 323 struct ed {
 324         u8 dev_addr;            /* device address */
 325         u8 ep_addr;             /* endpoint address */
 326         enum fhci_tf_mode mode; /* USB transfer mode */
 327         enum fhci_speed speed;
 328         unsigned int max_pkt_size;
 329         enum fhci_ed_state state;
 330         struct list_head td_list; /* a list of all queued TD to this pipe */
 331         struct list_head node;
 332
 333         /* read only parameters, should be cleared upon initialization */
 334         u8 toggle_carry;        /* toggle carry from the last TD submitted */
 335         u16 next_iso;           /* time stamp of next queued ISO transfer */
 336         struct td *td_head;     /* a pointer to the current TD handled */
 337 };
 338
 339 struct td {
 340         void *data;              /* a pointer to the data buffer */
 341         unsigned int len;        /* length of the data to be submitted */
 342         unsigned int actual_len; /* actual bytes transferred on this td */
 343         enum fhci_ta_type type;  /* transaction type */
 344         u8 toggle;               /* toggle for next trans. within this TD */
 345         u16 iso_index;           /* ISO transaction index */
 346         u16 start_frame;         /* start frame time stamp */
 347         u16 interval;            /* interval between trans. (for ISO/Intr) */
 348         u32 status;              /* status of the TD */
 349         struct ed *ed;           /* a handle to the corresponding ED */
 350         struct urb *urb;         /* a handle to the corresponding URB */
 351         bool ioc;                /* Inform On Completion */
 352         struct list_head node;
 353
 354         /* read only parameters should be cleared upon initialization */
 355         struct packet *pkt;
 356         int nak_cnt;
 357         int error_cnt;
 358         struct list_head frame_lh;
 359 };
 360
 361 struct packet {
 362         u8 *data;       /* packet data */
 363         u32 len;        /* packet length */
 364         u32 status;     /* status of the packet - equivalent to the status
 365                          * field for the corresponding structure td */
 366         u32 info;       /* packet information */
 367         void __iomem *priv_data; /* private data of the driver (TDs or BDs) */
 368 };
 369
 370 /* struct for each URB */
 371 #define URB_INPROGRESS  0
 372 #define URB_DEL         1
 373
 374 /* URB states (state field) */
 375 #define US_BULK         0
 376 #define US_BULK0        1
 377
 378 /* three setup states */
 379 #define US_CTRL_SETUP   2
 380 #define US_CTRL_DATA    1
 381 #define US_CTRL_ACK     0
 382
 383 #define EP_ZERO 0
 384
 385 struct urb_priv {
 386         int num_of_tds;
 387         int tds_cnt;
 388         int state;
 389
 390         struct td **tds;
 391         struct ed *ed;
 392         struct timer_list time_out;
 393 };
 394
 395 struct endpoint {
 396         /* Pointer to ep parameter RAM */
 397         struct fhci_ep_pram __iomem *ep_pram_ptr;
 398
 399         /* Host transactions */
 400         struct usb_td __iomem *td_base; /* first TD in the ring */
 401         struct usb_td __iomem *conf_td; /* next TD for confirm after transac */
 402         struct usb_td __iomem *empty_td;/* next TD for new transaction req. */
 403         struct kfifo empty_frame_Q;  /* Empty frames list to use */
 404         struct kfifo conf_frame_Q;   /* frames passed to TDs,waiting for tx */
 405         struct kfifo dummy_packets_Q;/* dummy packets for the CRC overun */
 406
 407         bool already_pushed_dummy_bd;
 408 };
 409
 410 /* struct for each 1mSec frame time */
 411 #define FRAME_IS_TRANSMITTED            0x00
 412 #define FRAME_TIMER_END_TRANSMISSION    0x01
 413 #define FRAME_DATA_END_TRANSMISSION     0x02
 414 #define FRAME_END_TRANSMISSION          0x03
 415 #define FRAME_IS_PREPARED               0x04
 416
 417 struct fhci_time_frame {
 418         u16 frame_num;   /* frame number */
 419         u16 total_bytes; /* total bytes submitted within this frame */
 420         u8 frame_status; /* flag that indicates to stop fill this frame */
 421         struct list_head tds_list; /* all tds of this frame */
 422 };
 423
 424 /* internal driver structure*/
 425 struct fhci_usb {
 426         u16 saved_msk;           /* saving of the USB mask register */
 427         struct endpoint *ep0;    /* pointer for endpoint0 structure */
 428         int intr_nesting_cnt;    /* interrupt nesting counter */
 429         u16 max_frame_usage;     /* max frame time usage,in micro-sec */
 430         u16 max_bytes_per_frame; /* max byte can be tx in one time frame */
 431         u32 sw_transaction_time; /* sw complete trans time,in micro-sec */
 432         struct fhci_time_frame *actual_frame;
 433         struct fhci_controller_list *hc_list;   /* main structure for hc */
 434         struct virtual_root_hub *vroot_hub;
 435         enum fhci_port_status port_status;      /* v_rh port status */
 436
 437         u32 (*transfer_confirm)(struct fhci_hcd *fhci);
 438
 439         struct fhci_hcd *fhci;
 440 };
 441
 442 /*
 443  * Various helpers and prototypes below.
 444  */
 445
 446 static inline u16 get_frame_num(struct fhci_hcd *fhci)
 447 {
 448         return in_be16(&fhci->pram->frame_num) & 0x07ff;
 449 }
 450
 451 #define fhci_dbg(fhci, fmt, args...) \
 452                 dev_dbg(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 453 #define fhci_vdbg(fhci, fmt, args...) \
 454                 dev_vdbg(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 455 #define fhci_err(fhci, fmt, args...) \
 456                 dev_err(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 457 #define fhci_info(fhci, fmt, args...) \
 458                 dev_info(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 459 #define fhci_warn(fhci, fmt, args...) \
 460                 dev_warn(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 461
 462 static inline struct fhci_hcd *hcd_to_fhci(struct usb_hcd *hcd)
 463 {
 464         return (struct fhci_hcd *)hcd->hcd_priv;
 465 }
 466
 467 static inline struct usb_hcd *fhci_to_hcd(struct fhci_hcd *fhci)
 468 {
 469         return container_of((void *)fhci, struct usb_hcd, hcd_priv);
 470 }
 471
 472 /* fifo of pointers */
 473 static inline int cq_new(struct kfifo *fifo, int size)
 474 {
 475         return kfifo_alloc(fifo, size * sizeof(void *), GFP_KERNEL);
 476 }
 477
 478 static inline void cq_delete(struct kfifo *kfifo)
 479 {
 480         kfifo_free(kfifo);
 481 }
 482
 483 static inline unsigned int cq_howmany(struct kfifo *kfifo)
 484 {
 485         return kfifo_len(kfifo) / sizeof(void *);
 486 }
 487
 488 static inline int cq_put(struct kfifo *kfifo, void *p)
 489 {
 490         return kfifo_in(kfifo, (void *)&p, sizeof(p));
 491 }
 492
 493 static inline void *cq_get(struct kfifo *kfifo)
 494 {
 495         unsigned int sz;
 496         void *p;
 497
 498         sz = kfifo_out(kfifo, (void *)&p, sizeof(p));
 499         if (sz != sizeof(p))
 500                 return NULL;
 501
 502         return p;
 503 }
 504
 505 /* fhci-hcd.c */
 506 void fhci_start_sof_timer(struct fhci_hcd *fhci);
 507 void fhci_stop_sof_timer(struct fhci_hcd *fhci);
 508 u16 fhci_get_sof_timer_count(struct fhci_usb *usb);
 509 void fhci_usb_enable_interrupt(struct fhci_usb *usb);
 510 void fhci_usb_disable_interrupt(struct fhci_usb *usb);
 511 int fhci_ioports_check_bus_state(struct fhci_hcd *fhci);
 512
 513 /* fhci-mem.c */
 514 void fhci_recycle_empty_td(struct fhci_hcd *fhci, struct td *td);
 515 void fhci_recycle_empty_ed(struct fhci_hcd *fhci, struct ed *ed);
 516 struct ed *fhci_get_empty_ed(struct fhci_hcd *fhci);
 517 struct td *fhci_td_fill(struct fhci_hcd *fhci, struct urb *urb,
 518                         struct urb_priv *urb_priv, struct ed *ed, u16 index,
 519                         enum fhci_ta_type type, int toggle, u8 *data, u32 len,
 520                         u16 interval, u16 start_frame, bool ioc);
 521 void fhci_add_tds_to_ed(struct ed *ed, struct td **td_list, int number);
 522
 523 /* fhci-hub.c */
 524 void fhci_config_transceiver(struct fhci_hcd *fhci,
 525                         enum fhci_port_status status);
 526 void fhci_port_disable(struct fhci_hcd *fhci);
 527 void fhci_port_enable(void *lld);
 528 void fhci_io_port_generate_reset(struct fhci_hcd *fhci);
 529 void fhci_port_reset(void *lld);
 530 int fhci_hub_status_data(struct usb_hcd *hcd, char *buf);
 531 int fhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 532                      u16 wIndex, char *buf, u16 wLength);
 533
 534 /* fhci-tds.c */
 535 void fhci_flush_bds(struct fhci_usb *usb);
 536 void fhci_flush_actual_frame(struct fhci_usb *usb);
 537 u32 fhci_host_transaction(struct fhci_usb *usb, struct packet *pkt,
 538                           enum fhci_ta_type trans_type, u8 dest_addr,
 539                           u8 dest_ep, enum fhci_tf_mode trans_mode,
 540                           enum fhci_speed dest_speed, u8 data_toggle);
 541 void fhci_host_transmit_actual_frame(struct fhci_usb *usb);
 542 void fhci_tx_conf_interrupt(struct fhci_usb *usb);
 543 void fhci_push_dummy_bd(struct endpoint *ep);
 544 u32 fhci_create_ep(struct fhci_usb *usb, enum fhci_mem_alloc data_mem,
 545                    u32 ring_len);
 546 void fhci_init_ep_registers(struct fhci_usb *usb,
 547                             struct endpoint *ep,
 548                             enum fhci_mem_alloc data_mem);
 549 void fhci_ep0_free(struct fhci_usb *usb);
 550
 551 /* fhci-sched.c */
 552 extern struct tasklet_struct fhci_tasklet;
 553 void fhci_transaction_confirm(struct fhci_usb *usb, struct packet *pkt);
 554 void fhci_flush_all_transmissions(struct fhci_usb *usb);
 555 void fhci_schedule_transactions(struct fhci_usb *usb);
 556 void fhci_device_connected_interrupt(struct fhci_hcd *fhci);
 557 void fhci_device_disconnected_interrupt(struct fhci_hcd *fhci);
 558 void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb);
 559 u32 fhci_transfer_confirm_callback(struct fhci_hcd *fhci);
 560 irqreturn_t fhci_irq(struct usb_hcd *hcd);
 561 irqreturn_t fhci_frame_limit_timer_irq(int irq, void *_hcd);
 562
 563 /* fhci-q.h */
 564 void fhci_urb_complete_free(struct fhci_hcd *fhci, struct urb *urb);
 565 struct td *fhci_remove_td_from_ed(struct ed *ed);
 566 struct td *fhci_remove_td_from_frame(struct fhci_time_frame *frame);
 567 void fhci_move_td_from_ed_to_done_list(struct fhci_usb *usb, struct ed *ed);
 568 struct td *fhci_peek_td_from_frame(struct fhci_time_frame *frame);
 569 void fhci_add_td_to_frame(struct fhci_time_frame *frame, struct td *td);
 570 struct td *fhci_remove_td_from_done_list(struct fhci_controller_list *p_list);
 571 void fhci_done_td(struct urb *urb, struct td *td);
 572 void fhci_del_ed_list(struct fhci_hcd *fhci, struct ed *ed);
 573
 574 #ifdef CONFIG_FHCI_DEBUG
 575
 576 void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er);
 577 void fhci_dfs_destroy(struct fhci_hcd *fhci);
 578 void fhci_dfs_create(struct fhci_hcd *fhci);
 579
 580 #else
 581
 582 static inline void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er) {}
 583 static inline void fhci_dfs_destroy(struct fhci_hcd *fhci) {}
 584 static inline void fhci_dfs_create(struct fhci_hcd *fhci) {}
 585
 586 #endif /* CONFIG_FHCI_DEBUG */
 587
 588 #endif /* __FHCI_H */