xref: /openbmc/linux/drivers/usb/host/fhci.h (revision a4efdb8a)
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 <linux/gpio/consumer.h>
27 #include <soc/fsl/qe/qe.h>
28 #include <soc/fsl/qe/immap_qe.h>
29 
30 #define USB_CLOCK	48000000
31 
32 #define FHCI_PRAM_SIZE 0x100
33 
34 #define MAX_EDS		32
35 #define MAX_TDS		32
36 
37 
38 /* CRC16 field size */
39 #define CRC_SIZE 2
40 
41 /* USB protocol overhead for each frame transmitted from the host */
42 #define PROTOCOL_OVERHEAD 7
43 
44 /* Packet structure, info field */
45 #define PKT_PID_DATA0		0x80000000 /* PID - Data toggle zero */
46 #define PKT_PID_DATA1		0x40000000 /* PID - Data toggle one  */
47 #define PKT_PID_SETUP		0x20000000 /* PID - Setup bit */
48 #define PKT_SETUP_STATUS	0x10000000 /* Setup status bit */
49 #define PKT_SETADDR_STATUS	0x08000000 /* Set address status bit */
50 #define PKT_SET_HOST_LAST	0x04000000 /* Last data packet */
51 #define PKT_HOST_DATA		0x02000000 /* Data packet */
52 #define PKT_FIRST_IN_FRAME	0x01000000 /* First packet in the frame */
53 #define PKT_TOKEN_FRAME		0x00800000 /* Token packet */
54 #define PKT_ZLP			0x00400000 /* Zero length packet */
55 #define PKT_IN_TOKEN_FRAME	0x00200000 /* IN token packet */
56 #define PKT_OUT_TOKEN_FRAME	0x00100000 /* OUT token packet */
57 #define PKT_SETUP_TOKEN_FRAME	0x00080000 /* SETUP token packet */
58 #define PKT_STALL_FRAME		0x00040000 /* STALL packet */
59 #define PKT_NACK_FRAME		0x00020000 /* NACK packet */
60 #define PKT_NO_PID		0x00010000 /* No PID */
61 #define PKT_NO_CRC		0x00008000 /* don't append CRC */
62 #define PKT_HOST_COMMAND	0x00004000 /* Host command packet */
63 #define PKT_DUMMY_PACKET	0x00002000 /* Dummy packet, used for mmm */
64 #define PKT_LOW_SPEED_PACKET	0x00001000 /* Low-Speed packet */
65 
66 #define TRANS_OK		(0)
67 #define TRANS_INPROGRESS	(-1)
68 #define TRANS_DISCARD		(-2)
69 #define TRANS_FAIL		(-3)
70 
71 #define PS_INT		0
72 #define PS_DISCONNECTED	1
73 #define PS_CONNECTED	2
74 #define PS_READY	3
75 #define PS_MISSING	4
76 
77 /* Transfer Descriptor status field */
78 #define USB_TD_OK		0x00000000 /* TD transmited or received ok */
79 #define USB_TD_INPROGRESS	0x80000000 /* TD is being transmitted */
80 #define USB_TD_RX_ER_NONOCT	0x40000000 /* Tx Non Octet Aligned Packet */
81 #define USB_TD_RX_ER_BITSTUFF	0x20000000 /* Frame Aborted-Received pkt */
82 #define USB_TD_RX_ER_CRC	0x10000000 /* CRC error */
83 #define USB_TD_RX_ER_OVERUN	0x08000000 /* Over - run occurred */
84 #define USB_TD_RX_ER_PID	0x04000000 /* wrong PID received */
85 #define USB_TD_RX_DATA_UNDERUN	0x02000000 /* shorter than expected */
86 #define USB_TD_RX_DATA_OVERUN	0x01000000 /* longer than expected */
87 #define USB_TD_TX_ER_NAK	0x00800000 /* NAK handshake */
88 #define USB_TD_TX_ER_STALL	0x00400000 /* STALL handshake */
89 #define USB_TD_TX_ER_TIMEOUT	0x00200000 /* transmit time out */
90 #define USB_TD_TX_ER_UNDERUN	0x00100000 /* transmit underrun */
91 
92 #define USB_TD_ERROR (USB_TD_RX_ER_NONOCT | USB_TD_RX_ER_BITSTUFF | \
93 		USB_TD_RX_ER_CRC | USB_TD_RX_ER_OVERUN | USB_TD_RX_ER_PID | \
94 		USB_TD_RX_DATA_UNDERUN | USB_TD_RX_DATA_OVERUN | \
95 		USB_TD_TX_ER_NAK | USB_TD_TX_ER_STALL | \
96 		USB_TD_TX_ER_TIMEOUT | USB_TD_TX_ER_UNDERUN)
97 
98 /* Transfer Descriptor toggle field */
99 #define USB_TD_TOGGLE_DATA0	0
100 #define USB_TD_TOGGLE_DATA1	1
101 #define USB_TD_TOGGLE_CARRY	2
102 
103 /* #define MULTI_DATA_BUS */
104 
105 /* Bus mode register RBMR/TBMR */
106 #define BUS_MODE_GBL	0x20	/* Global snooping */
107 #define BUS_MODE_BO	0x18	/* Byte ordering */
108 #define BUS_MODE_BO_BE	0x10	/* Byte ordering - Big-endian */
109 #define BUS_MODE_DTB	0x02	/* Data bus */
110 
111 /* FHCI QE USB Register Description */
112 
113 /* USB Mode Register bit define */
114 #define USB_MODE_EN		0x01
115 #define USB_MODE_HOST		0x02
116 #define USB_MODE_TEST		0x04
117 #define USB_MODE_SFTE		0x08
118 #define USB_MODE_RESUME		0x40
119 #define USB_MODE_LSS		0x80
120 
121 /* USB Slave Address Register Mask */
122 #define USB_SLVADDR_MASK	0x7F
123 
124 /* USB Endpoint register define */
125 #define USB_EPNUM_MASK		0xF000
126 #define USB_EPNUM_SHIFT		12
127 
128 #define USB_TRANS_MODE_SHIFT	8
129 #define USB_TRANS_CTR		0x0000
130 #define USB_TRANS_INT		0x0100
131 #define USB_TRANS_BULK		0x0200
132 #define USB_TRANS_ISO		0x0300
133 
134 #define USB_EP_MF		0x0020
135 #define USB_EP_RTE		0x0010
136 
137 #define USB_THS_SHIFT		2
138 #define USB_THS_MASK		0x000c
139 #define USB_THS_NORMAL		0x0
140 #define USB_THS_IGNORE_IN	0x0004
141 #define USB_THS_NACK		0x0008
142 #define USB_THS_STALL		0x000c
143 
144 #define USB_RHS_SHIFT   	0
145 #define USB_RHS_MASK		0x0003
146 #define USB_RHS_NORMAL  	0x0
147 #define USB_RHS_IGNORE_OUT	0x0001
148 #define USB_RHS_NACK		0x0002
149 #define USB_RHS_STALL		0x0003
150 
151 #define USB_RTHS_MASK		0x000f
152 
153 /* USB Command Register define */
154 #define USB_CMD_STR_FIFO	0x80
155 #define USB_CMD_FLUSH_FIFO	0x40
156 #define USB_CMD_ISFT		0x20
157 #define USB_CMD_DSFT		0x10
158 #define USB_CMD_EP_MASK		0x03
159 
160 /* USB Event and Mask Register define */
161 #define USB_E_MSF_MASK		0x0800
162 #define USB_E_SFT_MASK		0x0400
163 #define USB_E_RESET_MASK	0x0200
164 #define USB_E_IDLE_MASK		0x0100
165 #define USB_E_TXE4_MASK		0x0080
166 #define USB_E_TXE3_MASK		0x0040
167 #define USB_E_TXE2_MASK		0x0020
168 #define USB_E_TXE1_MASK		0x0010
169 #define USB_E_SOF_MASK		0x0008
170 #define USB_E_BSY_MASK		0x0004
171 #define USB_E_TXB_MASK		0x0002
172 #define USB_E_RXB_MASK		0x0001
173 
174 /* Freescale USB HOST */
175 struct fhci_pram {
176 	__be16 ep_ptr[4];	/* Endpoint porter reg */
177 	__be32 rx_state;	/* Rx internal state */
178 	__be32 rx_ptr;		/* Rx internal data pointer */
179 	__be16 frame_num;	/* Frame number */
180 	__be16 rx_cnt;		/* Rx byte count */
181 	__be32 rx_temp;		/* Rx temp */
182 	__be32 rx_data_temp;	/* Rx data temp */
183 	__be16 rx_u_ptr;	/* Rx microcode return address temp */
184 	u8 reserved1[2];	/* reserved area */
185 	__be32 sof_tbl;		/* SOF lookup table pointer */
186 	u8 sof_u_crc_temp;	/* SOF micorcode CRC5 temp reg */
187 	u8 reserved2[0xdb];
188 };
189 
190 /* Freescale USB Endpoint*/
191 struct fhci_ep_pram {
192 	__be16 rx_base;		/* Rx BD base address */
193 	__be16 tx_base;		/* Tx BD base address */
194 	u8 rx_func_code;	/* Rx function code */
195 	u8 tx_func_code;	/* Tx function code */
196 	__be16 rx_buff_len;	/* Rx buffer length */
197 	__be16 rx_bd_ptr;	/* Rx BD pointer */
198 	__be16 tx_bd_ptr;	/* Tx BD pointer */
199 	__be32 tx_state;	/* Tx internal state */
200 	__be32 tx_ptr;		/* Tx internal data pointer */
201 	__be16 tx_crc;		/* temp transmit CRC */
202 	__be16 tx_cnt;		/* Tx byte count */
203 	__be32 tx_temp;		/* Tx temp */
204 	__be16 tx_u_ptr;	/* Tx microcode return address temp */
205 	__be16 reserved;
206 };
207 
208 struct fhci_controller_list {
209 	struct list_head ctrl_list;	/* control endpoints */
210 	struct list_head bulk_list;	/* bulk endpoints */
211 	struct list_head iso_list;	/* isochronous endpoints */
212 	struct list_head intr_list;	/* interruput endpoints */
213 	struct list_head done_list;	/* done transfers */
214 };
215 
216 struct virtual_root_hub {
217 	int dev_num;	/* USB address of the root hub */
218 	u32 feature;	/* indicates what feature has been set */
219 	struct usb_hub_status hub;
220 	struct usb_port_status port;
221 };
222 
223 enum fhci_gpios {
224 	GPIO_USBOE = 0,
225 	GPIO_USBTP,
226 	GPIO_USBTN,
227 	GPIO_USBRP,
228 	GPIO_USBRN,
229 	/* these are optional */
230 	GPIO_SPEED,
231 	GPIO_POWER,
232 	NUM_GPIOS,
233 };
234 
235 enum fhci_pins {
236 	PIN_USBOE = 0,
237 	PIN_USBTP,
238 	PIN_USBTN,
239 	NUM_PINS,
240 };
241 
242 struct fhci_hcd {
243 	enum qe_clock fullspeed_clk;
244 	enum qe_clock lowspeed_clk;
245 	struct qe_pin *pins[NUM_PINS];
246 	struct gpio_desc *gpiods[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 
get_frame_num(struct fhci_hcd * fhci)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 
hcd_to_fhci(struct usb_hcd * hcd)462 static inline struct fhci_hcd *hcd_to_fhci(struct usb_hcd *hcd)
463 {
464 	return (struct fhci_hcd *)hcd->hcd_priv;
465 }
466 
fhci_to_hcd(struct fhci_hcd * fhci)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 */
cq_new(struct kfifo * fifo,int size)473 static inline int cq_new(struct kfifo *fifo, int size)
474 {
475 	return kfifo_alloc(fifo, size * sizeof(void *), GFP_KERNEL);
476 }
477 
cq_delete(struct kfifo * kfifo)478 static inline void cq_delete(struct kfifo *kfifo)
479 {
480 	kfifo_free(kfifo);
481 }
482 
cq_howmany(struct kfifo * kfifo)483 static inline unsigned int cq_howmany(struct kfifo *kfifo)
484 {
485 	return kfifo_len(kfifo) / sizeof(void *);
486 }
487 
cq_put(struct kfifo * kfifo,void * p)488 static inline int cq_put(struct kfifo *kfifo, void *p)
489 {
490 	return kfifo_in(kfifo, (void *)&p, sizeof(p));
491 }
492 
cq_get(struct kfifo * kfifo)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 
fhci_dbg_isr(struct fhci_hcd * fhci,int usb_er)582 static inline void fhci_dbg_isr(struct fhci_hcd *fhci, int usb_er) {}
fhci_dfs_destroy(struct fhci_hcd * fhci)583 static inline void fhci_dfs_destroy(struct fhci_hcd *fhci) {}
fhci_dfs_create(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 */
589