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 | |
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 */ |
589 | |