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/bug.h>
  24 #include <linux/spinlock.h>
  25 #include <linux/interrupt.h>
  26 #include <linux/kfifo.h>
  27 #include <linux/io.h>
  28 #include <linux/usb.h>
  29 #include <linux/usb/hcd.h>
  30 #include <asm/qe.h>
  31
  32 #define USB_CLOCK       48000000
  33
  34 #define FHCI_PRAM_SIZE 0x100
  35
  36 #define MAX_EDS         32
  37 #define MAX_TDS         32
  38
  39
  40 /* CRC16 field size */
  41 #define CRC_SIZE 2
  42
  43 /* USB protocol overhead for each frame transmitted from the host */
  44 #define PROTOCOL_OVERHEAD 7
  45
  46 /* Packet structure, info field */
  47 #define PKT_PID_DATA0           0x80000000 /* PID - Data toggle zero */
  48 #define PKT_PID_DATA1           0x40000000 /* PID - Data toggle one  */
  49 #define PKT_PID_SETUP           0x20000000 /* PID - Setup bit */
  50 #define PKT_SETUP_STATUS        0x10000000 /* Setup status bit */
  51 #define PKT_SETADDR_STATUS      0x08000000 /* Set address status bit */
  52 #define PKT_SET_HOST_LAST       0x04000000 /* Last data packet */
  53 #define PKT_HOST_DATA           0x02000000 /* Data packet */
  54 #define PKT_FIRST_IN_FRAME      0x01000000 /* First packet in the frame */
  55 #define PKT_TOKEN_FRAME         0x00800000 /* Token packet */
  56 #define PKT_ZLP                 0x00400000 /* Zero length packet */
  57 #define PKT_IN_TOKEN_FRAME      0x00200000 /* IN token packet */
  58 #define PKT_OUT_TOKEN_FRAME     0x00100000 /* OUT token packet */
  59 #define PKT_SETUP_TOKEN_FRAME   0x00080000 /* SETUP token packet */
  60 #define PKT_STALL_FRAME         0x00040000 /* STALL packet */
  61 #define PKT_NACK_FRAME          0x00020000 /* NACK packet */
  62 #define PKT_NO_PID              0x00010000 /* No PID */
  63 #define PKT_NO_CRC              0x00008000 /* don't append CRC */
  64 #define PKT_HOST_COMMAND        0x00004000 /* Host command packet */
  65 #define PKT_DUMMY_PACKET        0x00002000 /* Dummy packet, used for mmm */
  66 #define PKT_LOW_SPEED_PACKET    0x00001000 /* Low-Speed packet */
  67
  68 #define TRANS_OK                (0)
  69 #define TRANS_INPROGRESS        (-1)
  70 #define TRANS_DISCARD           (-2)
  71 #define TRANS_FAIL              (-3)
  72
  73 #define PS_INT          0
  74 #define PS_DISCONNECTED 1
  75 #define PS_CONNECTED    2
  76 #define PS_READY        3
  77 #define PS_MISSING      4
  78
  79 /* Transfer Descriptor status field */
  80 #define USB_TD_OK               0x00000000 /* TD transmited or received ok */
  81 #define USB_TD_INPROGRESS       0x80000000 /* TD is being transmitted */
  82 #define USB_TD_RX_ER_NONOCT     0x40000000 /* Tx Non Octet Aligned Packet */
  83 #define USB_TD_RX_ER_BITSTUFF   0x20000000 /* Frame Aborted-Received pkt */
  84 #define USB_TD_RX_ER_CRC        0x10000000 /* CRC error */
  85 #define USB_TD_RX_ER_OVERUN     0x08000000 /* Over - run occurred */
  86 #define USB_TD_RX_ER_PID        0x04000000 /* wrong PID received */
  87 #define USB_TD_RX_DATA_UNDERUN  0x02000000 /* shorter than expected */
  88 #define USB_TD_RX_DATA_OVERUN   0x01000000 /* longer than expected */
  89 #define USB_TD_TX_ER_NAK        0x00800000 /* NAK handshake */
  90 #define USB_TD_TX_ER_STALL      0x00400000 /* STALL handshake */
  91 #define USB_TD_TX_ER_TIMEOUT    0x00200000 /* transmit time out */
  92 #define USB_TD_TX_ER_UNDERUN    0x00100000 /* transmit underrun */
  93
  94 #define USB_TD_ERROR (USB_TD_RX_ER_NONOCT | USB_TD_RX_ER_BITSTUFF | \
  95                 USB_TD_RX_ER_CRC | USB_TD_RX_ER_OVERUN | USB_TD_RX_ER_PID | \
  96                 USB_TD_RX_DATA_UNDERUN | USB_TD_RX_DATA_OVERUN | \
  97                 USB_TD_TX_ER_NAK | USB_TD_TX_ER_STALL | \
  98                 USB_TD_TX_ER_TIMEOUT | USB_TD_TX_ER_UNDERUN)
  99
 100 /* Transfer Descriptor toggle field */
 101 #define USB_TD_TOGGLE_DATA0     0
 102 #define USB_TD_TOGGLE_DATA1     1
 103 #define USB_TD_TOGGLE_CARRY     2
 104
 105 /* #define MULTI_DATA_BUS */
 106
 107 /* Bus mode register RBMR/TBMR */
 108 #define BUS_MODE_GBL    0x20    /* Global snooping */
 109 #define BUS_MODE_BO     0x18    /* Byte ordering */
 110 #define BUS_MODE_BO_BE  0x10    /* Byte ordering - Big-endian */
 111 #define BUS_MODE_DTB    0x02    /* Data bus */
 112
 113 /* FHCI QE USB Register Description */
 114
 115 /* USB Mode Register bit define */
 116 #define USB_MODE_EN             0x01
 117 #define USB_MODE_HOST           0x02
 118 #define USB_MODE_TEST           0x04
 119 #define USB_MODE_SFTE           0x08
 120 #define USB_MODE_RESUME         0x40
 121 #define USB_MODE_LSS            0x80
 122
 123 /* USB Slave Address Register Mask */
 124 #define USB_SLVADDR_MASK        0x7F
 125
 126 /* USB Endpoint register define */
 127 #define USB_EPNUM_MASK          0xF000
 128 #define USB_EPNUM_SHIFT         12
 129
 130 #define USB_TRANS_MODE_SHIFT    8
 131 #define USB_TRANS_CTR           0x0000
 132 #define USB_TRANS_INT           0x0100
 133 #define USB_TRANS_BULK          0x0200
 134 #define USB_TRANS_ISO           0x0300
 135
 136 #define USB_EP_MF               0x0020
 137 #define USB_EP_RTE              0x0010
 138
 139 #define USB_THS_SHIFT           2
 140 #define USB_THS_MASK            0x000c
 141 #define USB_THS_NORMAL          0x0
 142 #define USB_THS_IGNORE_IN       0x0004
 143 #define USB_THS_NACK            0x0008
 144 #define USB_THS_STALL           0x000c
 145
 146 #define USB_RHS_SHIFT           0
 147 #define USB_RHS_MASK            0x0003
 148 #define USB_RHS_NORMAL          0x0
 149 #define USB_RHS_IGNORE_OUT      0x0001
 150 #define USB_RHS_NACK            0x0002
 151 #define USB_RHS_STALL           0x0003
 152
 153 #define USB_RTHS_MASK           0x000f
 154
 155 /* USB Command Register define */
 156 #define USB_CMD_STR_FIFO        0x80
 157 #define USB_CMD_FLUSH_FIFO      0x40
 158 #define USB_CMD_ISFT            0x20
 159 #define USB_CMD_DSFT            0x10
 160 #define USB_CMD_EP_MASK         0x03
 161
 162 /* USB Event and Mask Register define */
 163 #define USB_E_MSF_MASK          0x0800
 164 #define USB_E_SFT_MASK          0x0400
 165 #define USB_E_RESET_MASK        0x0200
 166 #define USB_E_IDLE_MASK         0x0100
 167 #define USB_E_TXE4_MASK         0x0080
 168 #define USB_E_TXE3_MASK         0x0040
 169 #define USB_E_TXE2_MASK         0x0020
 170 #define USB_E_TXE1_MASK         0x0010
 171 #define USB_E_SOF_MASK          0x0008
 172 #define USB_E_BSY_MASK          0x0004
 173 #define USB_E_TXB_MASK          0x0002
 174 #define USB_E_RXB_MASK          0x0001
 175
 176 /* Freescale USB Host controller registers */
 177 struct fhci_regs {
 178         u8 usb_mod;             /* mode register */
 179         u8 usb_addr;            /* address register */
 180         u8 usb_comm;            /* command register */
 181         u8 reserved1[1];
 182         __be16 usb_ep[4];       /* endpoint register */
 183         u8 reserved2[4];
 184         __be16 usb_event;       /* event register */
 185         u8 reserved3[2];
 186         __be16 usb_mask;        /* mask register */
 187         u8 reserved4[1];
 188         u8 usb_status;          /* status register */
 189         __be16 usb_sof_tmr;     /* Start Of Frame timer */
 190         u8 reserved5[2];
 191         __be16 usb_frame_num;   /* frame number register */
 192         u8 reserved6[1];
 193 };
 194
 195 /* Freescale USB HOST */
 196 struct fhci_pram {
 197         __be16 ep_ptr[4];       /* Endpoint porter reg */
 198         __be32 rx_state;        /* Rx internal state */
 199         __be32 rx_ptr;          /* Rx internal data pointer */
 200         __be16 frame_num;       /* Frame number */
 201         __be16 rx_cnt;          /* Rx byte count */
 202         __be32 rx_temp;         /* Rx temp */
 203         __be32 rx_data_temp;    /* Rx data temp */
 204         __be16 rx_u_ptr;        /* Rx microcode return address temp */
 205         u8 reserved1[2];        /* reserved area */
 206         __be32 sof_tbl;         /* SOF lookup table pointer */
 207         u8 sof_u_crc_temp;      /* SOF micorcode CRC5 temp reg */
 208         u8 reserved2[0xdb];
 209 };
 210
 211 /* Freescale USB Endpoint*/
 212 struct fhci_ep_pram {
 213         __be16 rx_base;         /* Rx BD base address */
 214         __be16 tx_base;         /* Tx BD base address */
 215         u8 rx_func_code;        /* Rx function code */
 216         u8 tx_func_code;        /* Tx function code */
 217         __be16 rx_buff_len;     /* Rx buffer length */
 218         __be16 rx_bd_ptr;       /* Rx BD pointer */
 219         __be16 tx_bd_ptr;       /* Tx BD pointer */
 220         __be32 tx_state;        /* Tx internal state */
 221         __be32 tx_ptr;          /* Tx internal data pointer */
 222         __be16 tx_crc;          /* temp transmit CRC */
 223         __be16 tx_cnt;          /* Tx byte count */
 224         __be32 tx_temp;         /* Tx temp */
 225         __be16 tx_u_ptr;        /* Tx microcode return address temp */
 226         __be16 reserved;
 227 };
 228
 229 struct fhci_controller_list {
 230         struct list_head ctrl_list;     /* control endpoints */
 231         struct list_head bulk_list;     /* bulk endpoints */
 232         struct list_head iso_list;      /* isochronous endpoints */
 233         struct list_head intr_list;     /* interruput endpoints */
 234         struct list_head done_list;     /* done transfers */
 235 };
 236
 237 struct virtual_root_hub {
 238         int dev_num;    /* USB address of the root hub */
 239         u32 feature;    /* indicates what feature has been set */
 240         struct usb_hub_status hub;
 241         struct usb_port_status port;
 242 };
 243
 244 enum fhci_gpios {
 245         GPIO_USBOE = 0,
 246         GPIO_USBTP,
 247         GPIO_USBTN,
 248         GPIO_USBRP,
 249         GPIO_USBRN,
 250         /* these are optional */
 251         GPIO_SPEED,
 252         GPIO_POWER,
 253         NUM_GPIOS,
 254 };
 255
 256 enum fhci_pins {
 257         PIN_USBOE = 0,
 258         PIN_USBTP,
 259         PIN_USBTN,
 260         NUM_PINS,
 261 };
 262
 263 struct fhci_hcd {
 264         enum qe_clock fullspeed_clk;
 265         enum qe_clock lowspeed_clk;
 266         struct qe_pin *pins[NUM_PINS];
 267         int gpios[NUM_GPIOS];
 268         bool alow_gpios[NUM_GPIOS];
 269
 270         struct fhci_regs __iomem *regs; /* I/O memory used to communicate */
 271         struct fhci_pram __iomem *pram; /* Parameter RAM */
 272         struct gtm_timer *timer;
 273
 274         spinlock_t lock;
 275         struct fhci_usb *usb_lld; /* Low-level driver */
 276         struct virtual_root_hub *vroot_hub; /* the virtual root hub */
 277         int active_urbs;
 278         struct fhci_controller_list *hc_list;
 279         struct tasklet_struct *process_done_task; /* tasklet for done list */
 280
 281         struct list_head empty_eds;
 282         struct list_head empty_tds;
 283
 284 #ifdef CONFIG_FHCI_DEBUG
 285         int usb_irq_stat[13];
 286         struct dentry *dfs_root;
 287         struct dentry *dfs_regs;
 288         struct dentry *dfs_irq_stat;
 289 #endif
 290 };
 291
 292 #define USB_FRAME_USAGE 90
 293 #define FRAME_TIME_USAGE (USB_FRAME_USAGE*10)   /* frame time usage */
 294 #define SW_FIX_TIME_BETWEEN_TRANSACTION 150     /* SW */
 295 #define MAX_BYTES_PER_FRAME (USB_FRAME_USAGE*15)
 296 #define MAX_PERIODIC_FRAME_USAGE 90
 297
 298 /* transaction type */
 299 enum fhci_ta_type {
 300         FHCI_TA_IN = 0, /* input transaction */
 301         FHCI_TA_OUT,    /* output transaction */
 302         FHCI_TA_SETUP,  /* setup transaction */
 303 };
 304
 305 /* transfer mode */
 306 enum fhci_tf_mode {
 307         FHCI_TF_CTRL = 0,
 308         FHCI_TF_ISO,
 309         FHCI_TF_BULK,
 310         FHCI_TF_INTR,
 311 };
 312
 313 enum fhci_speed {
 314         FHCI_FULL_SPEED,
 315         FHCI_LOW_SPEED,
 316 };
 317
 318 /* endpoint state */
 319 enum fhci_ed_state {
 320         FHCI_ED_NEW = 0, /* pipe is new */
 321         FHCI_ED_OPER,    /* pipe is operating */
 322         FHCI_ED_URB_DEL, /* pipe is in hold because urb is being deleted */
 323         FHCI_ED_SKIP,    /* skip this pipe */
 324         FHCI_ED_HALTED,  /* pipe is halted */
 325 };
 326
 327 enum fhci_port_status {
 328         FHCI_PORT_POWER_OFF = 0,
 329         FHCI_PORT_DISABLED,
 330         FHCI_PORT_DISCONNECTING,
 331         FHCI_PORT_WAITING,      /* waiting for connection */
 332         FHCI_PORT_FULL,         /* full speed connected */
 333         FHCI_PORT_LOW,          /* low speed connected */
 334 };
 335
 336 enum fhci_mem_alloc {
 337         MEM_CACHABLE_SYS = 0x00000001,  /* primary DDR,cachable */
 338         MEM_NOCACHE_SYS = 0x00000004,   /* primary DDR,non-cachable */
 339         MEM_SECONDARY = 0x00000002,     /* either secondary DDR or SDRAM */
 340         MEM_PRAM = 0x00000008,          /* multi-user RAM identifier */
 341 };
 342
 343 /* USB default parameters*/
 344 #define DEFAULT_RING_LEN        8
 345 #define DEFAULT_DATA_MEM        MEM_CACHABLE_SYS
 346
 347 struct ed {
 348         u8 dev_addr;            /* device address */
 349         u8 ep_addr;             /* endpoint address */
 350         enum fhci_tf_mode mode; /* USB transfer mode */
 351         enum fhci_speed speed;
 352         unsigned int max_pkt_size;
 353         enum fhci_ed_state state;
 354         struct list_head td_list; /* a list of all queued TD to this pipe */
 355         struct list_head node;
 356
 357         /* read only parameters, should be cleared upon initialization */
 358         u8 toggle_carry;        /* toggle carry from the last TD submitted */
 359         u32 last_iso;           /* time stamp of last queued ISO transfer */
 360         struct td *td_head;     /* a pointer to the current TD handled */
 361 };
 362
 363 struct td {
 364         void *data;              /* a pointer to the data buffer */
 365         unsigned int len;        /* length of the data to be submitted */
 366         unsigned int actual_len; /* actual bytes transferred on this td */
 367         enum fhci_ta_type type;  /* transaction type */
 368         u8 toggle;               /* toggle for next trans. within this TD */
 369         u16 iso_index;           /* ISO transaction index */
 370         u16 start_frame;         /* start frame time stamp */
 371         u16 interval;            /* interval between trans. (for ISO/Intr) */
 372         u32 status;              /* status of the TD */
 373         struct ed *ed;           /* a handle to the corresponding ED */
 374         struct urb *urb;         /* a handle to the corresponding URB */
 375         bool ioc;                /* Inform On Completion */
 376         struct list_head node;
 377
 378         /* read only parameters should be cleared upon initialization */
 379         struct packet *pkt;
 380         int nak_cnt;
 381         int error_cnt;
 382         struct list_head frame_lh;
 383 };
 384
 385 struct packet {
 386         u8 *data;       /* packet data */
 387         u32 len;        /* packet length */
 388         u32 status;     /* status of the packet - equivalent to the status
 389                          * field for the corresponding structure td */
 390         u32 info;       /* packet information */
 391         void __iomem *priv_data; /* private data of the driver (TDs or BDs) */
 392 };
 393
 394 /* struct for each URB */
 395 #define URB_INPROGRESS  0
 396 #define URB_DEL         1
 397
 398 /* URB states (state field) */
 399 #define US_BULK         0
 400 #define US_BULK0        1
 401
 402 /* three setup states */
 403 #define US_CTRL_SETUP   2
 404 #define US_CTRL_DATA    1
 405 #define US_CTRL_ACK     0
 406
 407 #define EP_ZERO 0
 408
 409 struct urb_priv {
 410         int num_of_tds;
 411         int tds_cnt;
 412         int state;
 413
 414         struct td **tds;
 415         struct ed *ed;
 416         struct timer_list time_out;
 417 };
 418
 419 struct endpoint {
 420         /* Pointer to ep parameter RAM */
 421         struct fhci_ep_pram __iomem *ep_pram_ptr;
 422
 423         /* Host transactions */
 424         struct usb_td __iomem *td_base; /* first TD in the ring */
 425         struct usb_td __iomem *conf_td; /* next TD for confirm after transac */
 426         struct usb_td __iomem *empty_td;/* next TD for new transaction req. */
 427         struct kfifo empty_frame_Q;  /* Empty frames list to use */
 428         struct kfifo conf_frame_Q;   /* frames passed to TDs,waiting for tx */
 429         struct kfifo dummy_packets_Q;/* dummy packets for the CRC overun */
 430
 431         bool already_pushed_dummy_bd;
 432 };
 433
 434 /* struct for each 1mSec frame time */
 435 #define FRAME_IS_TRANSMITTED            0x00
 436 #define FRAME_TIMER_END_TRANSMISSION    0x01
 437 #define FRAME_DATA_END_TRANSMISSION     0x02
 438 #define FRAME_END_TRANSMISSION          0x03
 439 #define FRAME_IS_PREPARED               0x04
 440
 441 struct fhci_time_frame {
 442         u16 frame_num;   /* frame number */
 443         u16 total_bytes; /* total bytes submitted within this frame */
 444         u8 frame_status; /* flag that indicates to stop fill this frame */
 445         struct list_head tds_list; /* all tds of this frame */
 446 };
 447
 448 /* internal driver structure*/
 449 struct fhci_usb {
 450         u16 saved_msk;           /* saving of the USB mask register */
 451         struct endpoint *ep0;    /* pointer for endpoint0 structure */
 452         int intr_nesting_cnt;    /* interrupt nesting counter */
 453         u16 max_frame_usage;     /* max frame time usage,in micro-sec */
 454         u16 max_bytes_per_frame; /* max byte can be tx in one time frame */
 455         u32 sw_transaction_time; /* sw complete trans time,in micro-sec */
 456         struct fhci_time_frame *actual_frame;
 457         struct fhci_controller_list *hc_list;   /* main structure for hc */
 458         struct virtual_root_hub *vroot_hub;
 459         enum fhci_port_status port_status;      /* v_rh port status */
 460
 461         u32 (*transfer_confirm)(struct fhci_hcd *fhci);
 462
 463         struct fhci_hcd *fhci;
 464 };
 465
 466 /*
 467  * Various helpers and prototypes below.
 468  */
 469
 470 static inline u16 get_frame_num(struct fhci_hcd *fhci)
 471 {
 472         return in_be16(&fhci->pram->frame_num) & 0x07ff;
 473 }
 474
 475 #define fhci_dbg(fhci, fmt, args...) \
 476                 dev_dbg(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 477 #define fhci_vdbg(fhci, fmt, args...) \
 478                 dev_vdbg(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 479 #define fhci_err(fhci, fmt, args...) \
 480                 dev_err(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 481 #define fhci_info(fhci, fmt, args...) \
 482                 dev_info(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 483 #define fhci_warn(fhci, fmt, args...) \
 484                 dev_warn(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
 485
 486 static inline struct fhci_hcd *hcd_to_fhci(struct usb_hcd *hcd)
 487 {
 488         return (struct fhci_hcd *)hcd->hcd_priv;
 489 }
 490
 491 static inline struct usb_hcd *fhci_to_hcd(struct fhci_hcd *fhci)
 492 {
 493         return container_of((void *)fhci, struct usb_hcd, hcd_priv);
 494 }
 495
 496 /* fifo of pointers */
 497 static inline int cq_new(struct kfifo *fifo, int size)
 498 {
 499         return kfifo_alloc(fifo, size * sizeof(void *), GFP_KERNEL);
 500 }
 501
 502 static inline void cq_delete(struct kfifo *kfifo)
 503 {
 504         kfifo_free(kfifo);
 505 }
 506
 507 static inline unsigned int cq_howmany(struct kfifo *kfifo)
 508 {
 509         return kfifo_len(kfifo) / sizeof(void *);
 510 }
 511
 512 static inline int cq_put(struct kfifo *kfifo, void *p)
 513 {
 514         return kfifo_in(kfifo, (void *)&p, sizeof(p));
 515 }
 516
 517 static inline void *cq_get(struct kfifo *kfifo)
 518 {
 519         unsigned int sz;
 520         void *p;
 521
 522         sz = kfifo_out(kfifo, (void *)&p, sizeof(p));
 523         if (sz != sizeof(p))
 524                 return NULL;
 525
 526         return p;
 527 }
 528
 529 /* fhci-hcd.c */
 530 void fhci_start_sof_timer(struct fhci_hcd *fhci);
 531 void fhci_stop_sof_timer(struct fhci_hcd *fhci);
 532 u16 fhci_get_sof_timer_count(struct fhci_usb *usb);
 533 void fhci_usb_enable_interrupt(struct fhci_usb *usb);
 534 void fhci_usb_disable_interrupt(struct fhci_usb *usb);
 535 int fhci_ioports_check_bus_state(struct fhci_hcd *fhci);
 536
 537 /* fhci-mem.c */
 538 void fhci_recycle_empty_td(struct fhci_hcd *fhci, struct td *td);
 539 void fhci_recycle_empty_ed(struct fhci_hcd *fhci, struct ed *ed);
 540 struct ed *fhci_get_empty_ed(struct fhci_hcd *fhci);
 541 struct td *fhci_td_fill(struct fhci_hcd *fhci, struct urb *urb,
 542                         struct urb_priv *urb_priv, struct ed *ed, u16 index,
 543                         enum fhci_ta_type type, int toggle, u8 *data, u32 len,
 544                         u16 interval, u16 start_frame, bool ioc);
 545 void fhci_add_tds_to_ed(struct ed *ed, struct td **td_list, int number);
 546
 547 /* fhci-hub.c */
 548 void fhci_config_transceiver(struct fhci_hcd *fhci,
 549                         enum fhci_port_status status);
 550 void fhci_port_disable(struct fhci_hcd *fhci);
 551 void fhci_port_enable(void *lld);
 552 void fhci_io_port_generate_reset(struct fhci_hcd *fhci);
 553 void fhci_port_reset(void *lld);
 554 int fhci_hub_status_data(struct usb_hcd *hcd, char *buf);
 555 int fhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 556                      u16 wIndex, char *buf, u16 wLength);
 557
 558 /* fhci-tds.c */
 559 void fhci_flush_bds(struct fhci_usb *usb);
 560 void fhci_flush_actual_frame(struct fhci_usb *usb);
 561 u32 fhci_host_transaction(struct fhci_usb *usb, struct packet *pkt,
 562                           enum fhci_ta_type trans_type, u8 dest_addr,
 563                           u8 dest_ep, enum fhci_tf_mode trans_mode,
 564                           enum fhci_speed dest_speed, u8 data_toggle);
 565 void fhci_host_transmit_actual_frame(struct fhci_usb *usb);
 566 void fhci_tx_conf_interrupt(struct fhci_usb *usb);
 567 void fhci_push_dummy_bd(struct endpoint *ep);
 568 u32 fhci_create_ep(struct fhci_usb *usb, enum fhci_mem_alloc data_mem,
 569                    u32 ring_len);
 570 void fhci_init_ep_registers(struct fhci_usb *usb,
 571                             struct endpoint *ep,
 572                             enum fhci_mem_alloc data_mem);
 573 void fhci_ep0_free(struct fhci_usb *usb);
 574
 575 /* fhci-sched.c */
 576 extern struct tasklet_struct fhci_tasklet;
 577 void fhci_transaction_confirm(struct fhci_usb *usb, struct packet *pkt);
 578 void fhci_flush_all_transmissions(struct fhci_usb *usb);
 579 void fhci_schedule_transactions(struct fhci_usb *usb);
 580 void fhci_device_connected_interrupt(struct fhci_hcd *fhci);
 581 void fhci_device_disconnected_interrupt(struct fhci_hcd *fhci);
 582 void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb);
 583 u32 fhci_transfer_confirm_callback(struct fhci_hcd *fhci);
 584 irqreturn_t fhci_irq(struct usb_hcd *hcd);
 585 irqreturn_t fhci_frame_limit_timer_irq(int irq, void *_hcd);
 586
 587 /* fhci-q.h */
 588 void fhci_urb_complete_free(struct fhci_hcd *fhci, struct urb *urb);
 589 struct td *fhci_remove_td_from_ed(struct ed *ed);
 590 struct td *fhci_remove_td_from_frame(struct fhci_time_frame *frame);
 591 void fhci_move_td_from_ed_to_done_list(struct fhci_usb *usb, struct ed *ed);
 592 struct td *fhci_peek_td_from_frame(struct fhci_time_frame *frame);
 593 void fhci_add_td_to_frame(struct fhci_time_frame *frame, struct td *td);
 594 struct td *fhci_remove_td_from_done_list(struct fhci_controller_list *p_list);
 595 void fhci_done_td(struct urb *urb, struct td *td);
 596 void fhci_del_ed_list(struct fhci_hcd *fhci, struct ed *ed);
 597
 598 #ifdef CONFIG_FHCI_DEBUG
 599
 600 void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er);
 601 void fhci_dfs_destroy(struct fhci_hcd *fhci);
 602 void fhci_dfs_create(struct fhci_hcd *fhci);
 603
 604 #else
 605
 606 static inline void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er) {}
 607 static inline void fhci_dfs_destroy(struct fhci_hcd *fhci) {}
 608 static inline void fhci_dfs_create(struct fhci_hcd *fhci) {}
 609
 610 #endif /* CONFIG_FHCI_DEBUG */
 611
 612 #endif /* __FHCI_H */