usb/host/fhci.h

0001 /* SPDX-License-Identifier: GPL-2.0+ */
0002 /*
0003  * Freescale QUICC Engine USB Host Controller Driver
0004  *
0005  * Copyright (c) Freescale Semicondutor, Inc. 2006.
0006  *               Shlomi Gridish <gridish@freescale.com>
0007  *               Jerry Huang <Chang-Ming.Huang@freescale.com>
0008  * Copyright (c) Logic Product Development, Inc. 2007
0009  *               Peter Barada <peterb@logicpd.com>
0010  * Copyright (c) MontaVista Software, Inc. 2008.
0011  *               Anton Vorontsov <avorontsov@ru.mvista.com>
0012  */
0013
0014 #ifndef __FHCI_H
0015 #define __FHCI_H
0016
0017 #include <linux/kernel.h>
0018 #include <linux/types.h>
0019 #include <linux/bug.h>
0020 #include <linux/spinlock.h>
0021 #include <linux/interrupt.h>
0022 #include <linux/kfifo.h>
0023 #include <linux/io.h>
0024 #include <linux/usb.h>
0025 #include <linux/usb/hcd.h>
0026 #include <soc/fsl/qe/qe.h>
0027 #include <soc/fsl/qe/immap_qe.h>
0028
0029 #define USB_CLOCK   48000000
0030
0031 #define FHCI_PRAM_SIZE 0x100
0032
0033 #define MAX_EDS     32
0034 #define MAX_TDS     32
0035
0036
0037 /* CRC16 field size */
0038 #define CRC_SIZE 2
0039
0040 /* USB protocol overhead for each frame transmitted from the host */
0041 #define PROTOCOL_OVERHEAD 7
0042
0043 /* Packet structure, info field */
0044 #define PKT_PID_DATA0       0x80000000 /* PID - Data toggle zero */
0045 #define PKT_PID_DATA1       0x40000000 /* PID - Data toggle one  */
0046 #define PKT_PID_SETUP       0x20000000 /* PID - Setup bit */
0047 #define PKT_SETUP_STATUS    0x10000000 /* Setup status bit */
0048 #define PKT_SETADDR_STATUS  0x08000000 /* Set address status bit */
0049 #define PKT_SET_HOST_LAST   0x04000000 /* Last data packet */
0050 #define PKT_HOST_DATA       0x02000000 /* Data packet */
0051 #define PKT_FIRST_IN_FRAME  0x01000000 /* First packet in the frame */
0052 #define PKT_TOKEN_FRAME     0x00800000 /* Token packet */
0053 #define PKT_ZLP         0x00400000 /* Zero length packet */
0054 #define PKT_IN_TOKEN_FRAME  0x00200000 /* IN token packet */
0055 #define PKT_OUT_TOKEN_FRAME 0x00100000 /* OUT token packet */
0056 #define PKT_SETUP_TOKEN_FRAME   0x00080000 /* SETUP token packet */
0057 #define PKT_STALL_FRAME     0x00040000 /* STALL packet */
0058 #define PKT_NACK_FRAME      0x00020000 /* NACK packet */
0059 #define PKT_NO_PID      0x00010000 /* No PID */
0060 #define PKT_NO_CRC      0x00008000 /* don't append CRC */
0061 #define PKT_HOST_COMMAND    0x00004000 /* Host command packet */
0062 #define PKT_DUMMY_PACKET    0x00002000 /* Dummy packet, used for mmm */
0063 #define PKT_LOW_SPEED_PACKET    0x00001000 /* Low-Speed packet */
0064
0065 #define TRANS_OK        (0)
0066 #define TRANS_INPROGRESS    (-1)
0067 #define TRANS_DISCARD       (-2)
0068 #define TRANS_FAIL      (-3)
0069
0070 #define PS_INT      0
0071 #define PS_DISCONNECTED 1
0072 #define PS_CONNECTED    2
0073 #define PS_READY    3
0074 #define PS_MISSING  4
0075
0076 /* Transfer Descriptor status field */
0077 #define USB_TD_OK       0x00000000 /* TD transmited or received ok */
0078 #define USB_TD_INPROGRESS   0x80000000 /* TD is being transmitted */
0079 #define USB_TD_RX_ER_NONOCT 0x40000000 /* Tx Non Octet Aligned Packet */
0080 #define USB_TD_RX_ER_BITSTUFF   0x20000000 /* Frame Aborted-Received pkt */
0081 #define USB_TD_RX_ER_CRC    0x10000000 /* CRC error */
0082 #define USB_TD_RX_ER_OVERUN 0x08000000 /* Over - run occurred */
0083 #define USB_TD_RX_ER_PID    0x04000000 /* wrong PID received */
0084 #define USB_TD_RX_DATA_UNDERUN  0x02000000 /* shorter than expected */
0085 #define USB_TD_RX_DATA_OVERUN   0x01000000 /* longer than expected */
0086 #define USB_TD_TX_ER_NAK    0x00800000 /* NAK handshake */
0087 #define USB_TD_TX_ER_STALL  0x00400000 /* STALL handshake */
0088 #define USB_TD_TX_ER_TIMEOUT    0x00200000 /* transmit time out */
0089 #define USB_TD_TX_ER_UNDERUN    0x00100000 /* transmit underrun */
0090
0091 #define USB_TD_ERROR (USB_TD_RX_ER_NONOCT | USB_TD_RX_ER_BITSTUFF | \
0092         USB_TD_RX_ER_CRC | USB_TD_RX_ER_OVERUN | USB_TD_RX_ER_PID | \
0093         USB_TD_RX_DATA_UNDERUN | USB_TD_RX_DATA_OVERUN | \
0094         USB_TD_TX_ER_NAK | USB_TD_TX_ER_STALL | \
0095         USB_TD_TX_ER_TIMEOUT | USB_TD_TX_ER_UNDERUN)
0096
0097 /* Transfer Descriptor toggle field */
0098 #define USB_TD_TOGGLE_DATA0 0
0099 #define USB_TD_TOGGLE_DATA1 1
0100 #define USB_TD_TOGGLE_CARRY 2
0101
0102 /* #define MULTI_DATA_BUS */
0103
0104 /* Bus mode register RBMR/TBMR */
0105 #define BUS_MODE_GBL    0x20    /* Global snooping */
0106 #define BUS_MODE_BO 0x18    /* Byte ordering */
0107 #define BUS_MODE_BO_BE  0x10    /* Byte ordering - Big-endian */
0108 #define BUS_MODE_DTB    0x02    /* Data bus */
0109
0110 /* FHCI QE USB Register Description */
0111
0112 /* USB Mode Register bit define */
0113 #define USB_MODE_EN     0x01
0114 #define USB_MODE_HOST       0x02
0115 #define USB_MODE_TEST       0x04
0116 #define USB_MODE_SFTE       0x08
0117 #define USB_MODE_RESUME     0x40
0118 #define USB_MODE_LSS        0x80
0119
0120 /* USB Slave Address Register Mask */
0121 #define USB_SLVADDR_MASK    0x7F
0122
0123 /* USB Endpoint register define */
0124 #define USB_EPNUM_MASK      0xF000
0125 #define USB_EPNUM_SHIFT     12
0126
0127 #define USB_TRANS_MODE_SHIFT    8
0128 #define USB_TRANS_CTR       0x0000
0129 #define USB_TRANS_INT       0x0100
0130 #define USB_TRANS_BULK      0x0200
0131 #define USB_TRANS_ISO       0x0300
0132
0133 #define USB_EP_MF       0x0020
0134 #define USB_EP_RTE      0x0010
0135
0136 #define USB_THS_SHIFT       2
0137 #define USB_THS_MASK        0x000c
0138 #define USB_THS_NORMAL      0x0
0139 #define USB_THS_IGNORE_IN   0x0004
0140 #define USB_THS_NACK        0x0008
0141 #define USB_THS_STALL       0x000c
0142
0143 #define USB_RHS_SHIFT       0
0144 #define USB_RHS_MASK        0x0003
0145 #define USB_RHS_NORMAL      0x0
0146 #define USB_RHS_IGNORE_OUT  0x0001
0147 #define USB_RHS_NACK        0x0002
0148 #define USB_RHS_STALL       0x0003
0149
0150 #define USB_RTHS_MASK       0x000f
0151
0152 /* USB Command Register define */
0153 #define USB_CMD_STR_FIFO    0x80
0154 #define USB_CMD_FLUSH_FIFO  0x40
0155 #define USB_CMD_ISFT        0x20
0156 #define USB_CMD_DSFT        0x10
0157 #define USB_CMD_EP_MASK     0x03
0158
0159 /* USB Event and Mask Register define */
0160 #define USB_E_MSF_MASK      0x0800
0161 #define USB_E_SFT_MASK      0x0400
0162 #define USB_E_RESET_MASK    0x0200
0163 #define USB_E_IDLE_MASK     0x0100
0164 #define USB_E_TXE4_MASK     0x0080
0165 #define USB_E_TXE3_MASK     0x0040
0166 #define USB_E_TXE2_MASK     0x0020
0167 #define USB_E_TXE1_MASK     0x0010
0168 #define USB_E_SOF_MASK      0x0008
0169 #define USB_E_BSY_MASK      0x0004
0170 #define USB_E_TXB_MASK      0x0002
0171 #define USB_E_RXB_MASK      0x0001
0172
0173 /* Freescale USB HOST */
0174 struct fhci_pram {
0175     __be16 ep_ptr[4];   /* Endpoint porter reg */
0176     __be32 rx_state;    /* Rx internal state */
0177     __be32 rx_ptr;      /* Rx internal data pointer */
0178     __be16 frame_num;   /* Frame number */
0179     __be16 rx_cnt;      /* Rx byte count */
0180     __be32 rx_temp;     /* Rx temp */
0181     __be32 rx_data_temp;    /* Rx data temp */
0182     __be16 rx_u_ptr;    /* Rx microcode return address temp */
0183     u8 reserved1[2];    /* reserved area */
0184     __be32 sof_tbl;     /* SOF lookup table pointer */
0185     u8 sof_u_crc_temp;  /* SOF micorcode CRC5 temp reg */
0186     u8 reserved2[0xdb];
0187 };
0188
0189 /* Freescale USB Endpoint*/
0190 struct fhci_ep_pram {
0191     __be16 rx_base;     /* Rx BD base address */
0192     __be16 tx_base;     /* Tx BD base address */
0193     u8 rx_func_code;    /* Rx function code */
0194     u8 tx_func_code;    /* Tx function code */
0195     __be16 rx_buff_len; /* Rx buffer length */
0196     __be16 rx_bd_ptr;   /* Rx BD pointer */
0197     __be16 tx_bd_ptr;   /* Tx BD pointer */
0198     __be32 tx_state;    /* Tx internal state */
0199     __be32 tx_ptr;      /* Tx internal data pointer */
0200     __be16 tx_crc;      /* temp transmit CRC */
0201     __be16 tx_cnt;      /* Tx byte count */
0202     __be32 tx_temp;     /* Tx temp */
0203     __be16 tx_u_ptr;    /* Tx microcode return address temp */
0204     __be16 reserved;
0205 };
0206
0207 struct fhci_controller_list {
0208     struct list_head ctrl_list; /* control endpoints */
0209     struct list_head bulk_list; /* bulk endpoints */
0210     struct list_head iso_list;  /* isochronous endpoints */
0211     struct list_head intr_list; /* interruput endpoints */
0212     struct list_head done_list; /* done transfers */
0213 };
0214
0215 struct virtual_root_hub {
0216     int dev_num;    /* USB address of the root hub */
0217     u32 feature;    /* indicates what feature has been set */
0218     struct usb_hub_status hub;
0219     struct usb_port_status port;
0220 };
0221
0222 enum fhci_gpios {
0223     GPIO_USBOE = 0,
0224     GPIO_USBTP,
0225     GPIO_USBTN,
0226     GPIO_USBRP,
0227     GPIO_USBRN,
0228     /* these are optional */
0229     GPIO_SPEED,
0230     GPIO_POWER,
0231     NUM_GPIOS,
0232 };
0233
0234 enum fhci_pins {
0235     PIN_USBOE = 0,
0236     PIN_USBTP,
0237     PIN_USBTN,
0238     NUM_PINS,
0239 };
0240
0241 struct fhci_hcd {
0242     enum qe_clock fullspeed_clk;
0243     enum qe_clock lowspeed_clk;
0244     struct qe_pin *pins[NUM_PINS];
0245     int gpios[NUM_GPIOS];
0246     bool alow_gpios[NUM_GPIOS];
0247
0248     struct qe_usb_ctlr __iomem *regs; /* I/O memory used to communicate */
0249     struct fhci_pram __iomem *pram; /* Parameter RAM */
0250     struct gtm_timer *timer;
0251
0252     spinlock_t lock;
0253     struct fhci_usb *usb_lld; /* Low-level driver */
0254     struct virtual_root_hub *vroot_hub; /* the virtual root hub */
0255     int active_urbs;
0256     struct fhci_controller_list *hc_list;
0257     struct tasklet_struct *process_done_task; /* tasklet for done list */
0258
0259     struct list_head empty_eds;
0260     struct list_head empty_tds;
0261
0262 #ifdef CONFIG_FHCI_DEBUG
0263     int usb_irq_stat[13];
0264     struct dentry *dfs_root;
0265 #endif
0266 };
0267
0268 #define USB_FRAME_USAGE 90
0269 #define FRAME_TIME_USAGE (USB_FRAME_USAGE*10)   /* frame time usage */
0270 #define SW_FIX_TIME_BETWEEN_TRANSACTION 150 /* SW */
0271 #define MAX_BYTES_PER_FRAME (USB_FRAME_USAGE*15)
0272 #define MAX_PERIODIC_FRAME_USAGE 90
0273
0274 /* transaction type */
0275 enum fhci_ta_type {
0276     FHCI_TA_IN = 0, /* input transaction */
0277     FHCI_TA_OUT,    /* output transaction */
0278     FHCI_TA_SETUP,  /* setup transaction */
0279 };
0280
0281 /* transfer mode */
0282 enum fhci_tf_mode {
0283     FHCI_TF_CTRL = 0,
0284     FHCI_TF_ISO,
0285     FHCI_TF_BULK,
0286     FHCI_TF_INTR,
0287 };
0288
0289 enum fhci_speed {
0290     FHCI_FULL_SPEED,
0291     FHCI_LOW_SPEED,
0292 };
0293
0294 /* endpoint state */
0295 enum fhci_ed_state {
0296     FHCI_ED_NEW = 0, /* pipe is new */
0297     FHCI_ED_OPER,    /* pipe is operating */
0298     FHCI_ED_URB_DEL, /* pipe is in hold because urb is being deleted */
0299     FHCI_ED_SKIP,    /* skip this pipe */
0300     FHCI_ED_HALTED,  /* pipe is halted */
0301 };
0302
0303 enum fhci_port_status {
0304     FHCI_PORT_POWER_OFF = 0,
0305     FHCI_PORT_DISABLED,
0306     FHCI_PORT_DISCONNECTING,
0307     FHCI_PORT_WAITING,  /* waiting for connection */
0308     FHCI_PORT_FULL,     /* full speed connected */
0309     FHCI_PORT_LOW,      /* low speed connected */
0310 };
0311
0312 enum fhci_mem_alloc {
0313     MEM_CACHABLE_SYS = 0x00000001,  /* primary DDR,cachable */
0314     MEM_NOCACHE_SYS = 0x00000004,   /* primary DDR,non-cachable */
0315     MEM_SECONDARY = 0x00000002, /* either secondary DDR or SDRAM */
0316     MEM_PRAM = 0x00000008,      /* multi-user RAM identifier */
0317 };
0318
0319 /* USB default parameters*/
0320 #define DEFAULT_RING_LEN    8
0321 #define DEFAULT_DATA_MEM    MEM_CACHABLE_SYS
0322
0323 struct ed {
0324     u8 dev_addr;        /* device address */
0325     u8 ep_addr;     /* endpoint address */
0326     enum fhci_tf_mode mode; /* USB transfer mode */
0327     enum fhci_speed speed;
0328     unsigned int max_pkt_size;
0329     enum fhci_ed_state state;
0330     struct list_head td_list; /* a list of all queued TD to this pipe */
0331     struct list_head node;
0332
0333     /* read only parameters, should be cleared upon initialization */
0334     u8 toggle_carry;    /* toggle carry from the last TD submitted */
0335     u16 next_iso;       /* time stamp of next queued ISO transfer */
0336     struct td *td_head; /* a pointer to the current TD handled */
0337 };
0338
0339 struct td {
0340     void *data;      /* a pointer to the data buffer */
0341     unsigned int len;    /* length of the data to be submitted */
0342     unsigned int actual_len; /* actual bytes transferred on this td */
0343     enum fhci_ta_type type;  /* transaction type */
0344     u8 toggle;       /* toggle for next trans. within this TD */
0345     u16 iso_index;       /* ISO transaction index */
0346     u16 start_frame;     /* start frame time stamp */
0347     u16 interval;        /* interval between trans. (for ISO/Intr) */
0348     u32 status;      /* status of the TD */
0349     struct ed *ed;       /* a handle to the corresponding ED */
0350     struct urb *urb;     /* a handle to the corresponding URB */
0351     bool ioc;        /* Inform On Completion */
0352     struct list_head node;
0353
0354     /* read only parameters should be cleared upon initialization */
0355     struct packet *pkt;
0356     int nak_cnt;
0357     int error_cnt;
0358     struct list_head frame_lh;
0359 };
0360
0361 struct packet {
0362     u8 *data;   /* packet data */
0363     u32 len;    /* packet length */
0364     u32 status; /* status of the packet - equivalent to the status
0365              * field for the corresponding structure td */
0366     u32 info;   /* packet information */
0367     void __iomem *priv_data; /* private data of the driver (TDs or BDs) */
0368 };
0369
0370 /* struct for each URB */
0371 #define URB_INPROGRESS  0
0372 #define URB_DEL     1
0373
0374 /* URB states (state field) */
0375 #define US_BULK     0
0376 #define US_BULK0    1
0377
0378 /* three setup states */
0379 #define US_CTRL_SETUP   2
0380 #define US_CTRL_DATA    1
0381 #define US_CTRL_ACK 0
0382
0383 #define EP_ZERO 0
0384
0385 struct urb_priv {
0386     int num_of_tds;
0387     int tds_cnt;
0388     int state;
0389
0390     struct td **tds;
0391     struct ed *ed;
0392     struct timer_list time_out;
0393 };
0394
0395 struct endpoint {
0396     /* Pointer to ep parameter RAM */
0397     struct fhci_ep_pram __iomem *ep_pram_ptr;
0398
0399     /* Host transactions */
0400     struct usb_td __iomem *td_base; /* first TD in the ring */
0401     struct usb_td __iomem *conf_td; /* next TD for confirm after transac */
0402     struct usb_td __iomem *empty_td;/* next TD for new transaction req. */
0403     struct kfifo empty_frame_Q;  /* Empty frames list to use */
0404     struct kfifo conf_frame_Q;   /* frames passed to TDs,waiting for tx */
0405     struct kfifo dummy_packets_Q;/* dummy packets for the CRC overun */
0406
0407     bool already_pushed_dummy_bd;
0408 };
0409
0410 /* struct for each 1mSec frame time */
0411 #define FRAME_IS_TRANSMITTED        0x00
0412 #define FRAME_TIMER_END_TRANSMISSION    0x01
0413 #define FRAME_DATA_END_TRANSMISSION 0x02
0414 #define FRAME_END_TRANSMISSION      0x03
0415 #define FRAME_IS_PREPARED       0x04
0416
0417 struct fhci_time_frame {
0418     u16 frame_num;   /* frame number */
0419     u16 total_bytes; /* total bytes submitted within this frame */
0420     u8 frame_status; /* flag that indicates to stop fill this frame */
0421     struct list_head tds_list; /* all tds of this frame */
0422 };
0423
0424 /* internal driver structure*/
0425 struct fhci_usb {
0426     u16 saved_msk;       /* saving of the USB mask register */
0427     struct endpoint *ep0;    /* pointer for endpoint0 structure */
0428     int intr_nesting_cnt;    /* interrupt nesting counter */
0429     u16 max_frame_usage;     /* max frame time usage,in micro-sec */
0430     u16 max_bytes_per_frame; /* max byte can be tx in one time frame */
0431     u32 sw_transaction_time; /* sw complete trans time,in micro-sec */
0432     struct fhci_time_frame *actual_frame;
0433     struct fhci_controller_list *hc_list;   /* main structure for hc */
0434     struct virtual_root_hub *vroot_hub;
0435     enum fhci_port_status port_status;  /* v_rh port status */
0436
0437     u32 (*transfer_confirm)(struct fhci_hcd *fhci);
0438
0439     struct fhci_hcd *fhci;
0440 };
0441
0442 /*
0443  * Various helpers and prototypes below.
0444  */
0445
0446 static inline u16 get_frame_num(struct fhci_hcd *fhci)
0447 {
0448     return in_be16(&fhci->pram->frame_num) & 0x07ff;
0449 }
0450
0451 #define fhci_dbg(fhci, fmt, args...) \
0452         dev_dbg(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
0453 #define fhci_vdbg(fhci, fmt, args...) \
0454         dev_vdbg(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
0455 #define fhci_err(fhci, fmt, args...) \
0456         dev_err(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
0457 #define fhci_info(fhci, fmt, args...) \
0458         dev_info(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
0459 #define fhci_warn(fhci, fmt, args...) \
0460         dev_warn(fhci_to_hcd(fhci)->self.controller, fmt, ##args)
0461
0462 static inline struct fhci_hcd *hcd_to_fhci(struct usb_hcd *hcd)
0463 {
0464     return (struct fhci_hcd *)hcd->hcd_priv;
0465 }
0466
0467 static inline struct usb_hcd *fhci_to_hcd(struct fhci_hcd *fhci)
0468 {
0469     return container_of((void *)fhci, struct usb_hcd, hcd_priv);
0470 }
0471
0472 /* fifo of pointers */
0473 static inline int cq_new(struct kfifo *fifo, int size)
0474 {
0475     return kfifo_alloc(fifo, size * sizeof(void *), GFP_KERNEL);
0476 }
0477
0478 static inline void cq_delete(struct kfifo *kfifo)
0479 {
0480     kfifo_free(kfifo);
0481 }
0482
0483 static inline unsigned int cq_howmany(struct kfifo *kfifo)
0484 {
0485     return kfifo_len(kfifo) / sizeof(void *);
0486 }
0487
0488 static inline int cq_put(struct kfifo *kfifo, void *p)
0489 {
0490     return kfifo_in(kfifo, (void *)&p, sizeof(p));
0491 }
0492
0493 static inline void *cq_get(struct kfifo *kfifo)
0494 {
0495     unsigned int sz;
0496     void *p;
0497
0498     sz = kfifo_out(kfifo, (void *)&p, sizeof(p));
0499     if (sz != sizeof(p))
0500         return NULL;
0501
0502     return p;
0503 }
0504
0505 /* fhci-hcd.c */
0506 void fhci_start_sof_timer(struct fhci_hcd *fhci);
0507 void fhci_stop_sof_timer(struct fhci_hcd *fhci);
0508 u16 fhci_get_sof_timer_count(struct fhci_usb *usb);
0509 void fhci_usb_enable_interrupt(struct fhci_usb *usb);
0510 void fhci_usb_disable_interrupt(struct fhci_usb *usb);
0511 int fhci_ioports_check_bus_state(struct fhci_hcd *fhci);
0512
0513 /* fhci-mem.c */
0514 void fhci_recycle_empty_td(struct fhci_hcd *fhci, struct td *td);
0515 void fhci_recycle_empty_ed(struct fhci_hcd *fhci, struct ed *ed);
0516 struct ed *fhci_get_empty_ed(struct fhci_hcd *fhci);
0517 struct td *fhci_td_fill(struct fhci_hcd *fhci, struct urb *urb,
0518             struct urb_priv *urb_priv, struct ed *ed, u16 index,
0519             enum fhci_ta_type type, int toggle, u8 *data, u32 len,
0520             u16 interval, u16 start_frame, bool ioc);
0521 void fhci_add_tds_to_ed(struct ed *ed, struct td **td_list, int number);
0522
0523 /* fhci-hub.c */
0524 void fhci_config_transceiver(struct fhci_hcd *fhci,
0525             enum fhci_port_status status);
0526 void fhci_port_disable(struct fhci_hcd *fhci);
0527 void fhci_port_enable(void *lld);
0528 void fhci_io_port_generate_reset(struct fhci_hcd *fhci);
0529 void fhci_port_reset(void *lld);
0530 int fhci_hub_status_data(struct usb_hcd *hcd, char *buf);
0531 int fhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
0532              u16 wIndex, char *buf, u16 wLength);
0533
0534 /* fhci-tds.c */
0535 void fhci_flush_bds(struct fhci_usb *usb);
0536 void fhci_flush_actual_frame(struct fhci_usb *usb);
0537 u32 fhci_host_transaction(struct fhci_usb *usb, struct packet *pkt,
0538               enum fhci_ta_type trans_type, u8 dest_addr,
0539               u8 dest_ep, enum fhci_tf_mode trans_mode,
0540               enum fhci_speed dest_speed, u8 data_toggle);
0541 void fhci_host_transmit_actual_frame(struct fhci_usb *usb);
0542 void fhci_tx_conf_interrupt(struct fhci_usb *usb);
0543 void fhci_push_dummy_bd(struct endpoint *ep);
0544 u32 fhci_create_ep(struct fhci_usb *usb, enum fhci_mem_alloc data_mem,
0545            u32 ring_len);
0546 void fhci_init_ep_registers(struct fhci_usb *usb,
0547                 struct endpoint *ep,
0548                 enum fhci_mem_alloc data_mem);
0549 void fhci_ep0_free(struct fhci_usb *usb);
0550
0551 /* fhci-sched.c */
0552 extern struct tasklet_struct fhci_tasklet;
0553 void fhci_transaction_confirm(struct fhci_usb *usb, struct packet *pkt);
0554 void fhci_flush_all_transmissions(struct fhci_usb *usb);
0555 void fhci_schedule_transactions(struct fhci_usb *usb);
0556 void fhci_device_connected_interrupt(struct fhci_hcd *fhci);
0557 void fhci_device_disconnected_interrupt(struct fhci_hcd *fhci);
0558 void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb);
0559 u32 fhci_transfer_confirm_callback(struct fhci_hcd *fhci);
0560 irqreturn_t fhci_irq(struct usb_hcd *hcd);
0561 irqreturn_t fhci_frame_limit_timer_irq(int irq, void *_hcd);
0562
0563 /* fhci-q.h */
0564 void fhci_urb_complete_free(struct fhci_hcd *fhci, struct urb *urb);
0565 struct td *fhci_remove_td_from_ed(struct ed *ed);
0566 struct td *fhci_remove_td_from_frame(struct fhci_time_frame *frame);
0567 void fhci_move_td_from_ed_to_done_list(struct fhci_usb *usb, struct ed *ed);
0568 struct td *fhci_peek_td_from_frame(struct fhci_time_frame *frame);
0569 void fhci_add_td_to_frame(struct fhci_time_frame *frame, struct td *td);
0570 struct td *fhci_remove_td_from_done_list(struct fhci_controller_list *p_list);
0571 void fhci_done_td(struct urb *urb, struct td *td);
0572 void fhci_del_ed_list(struct fhci_hcd *fhci, struct ed *ed);
0573
0574 #ifdef CONFIG_FHCI_DEBUG
0575
0576 void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er);
0577 void fhci_dfs_destroy(struct fhci_hcd *fhci);
0578 void fhci_dfs_create(struct fhci_hcd *fhci);
0579
0580 #else
0581
0582 static inline void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er) {}
0583 static inline void fhci_dfs_destroy(struct fhci_hcd *fhci) {}
0584 static inline void fhci_dfs_create(struct fhci_hcd *fhci) {}
0585
0586 #endif /* CONFIG_FHCI_DEBUG */
0587
0588 #endif /* __FHCI_H */