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1e9a164e DH |
1 | /* |
2 | * Part of this code has been derived from linux: | |
3 | * Universal Host Controller Interface driver for USB (take II). | |
4 | * | |
5 | * (c) 1999-2001 Georg Acher, acher@in.tum.de (executive slave) (base guitar) | |
6 | * Deti Fliegl, deti@fliegl.de (executive slave) (lead voice) | |
7 | * Thomas Sailer, sailer@ife.ee.ethz.ch (chief consultant) (cheer leader) | |
8 | * Roman Weissgaerber, weissg@vienna.at (virt root hub) (studio porter) | |
9 | * (c) 2000 Yggdrasil Computing, Inc. (port of new PCI interface support | |
10 | * from usb-ohci.c by Adam Richter, adam@yggdrasil.com). | |
11 | * (C) 2000 David Brownell, david-b@pacbell.net (usb-ohci.c) | |
12 | * | |
13 | * HW-initalization based on material of | |
14 | * | |
15 | * (C) Copyright 1999 Linus Torvalds | |
16 | * (C) Copyright 1999 Johannes Erdfelt | |
17 | * (C) Copyright 1999 Randy Dunlap | |
18 | * (C) Copyright 1999 Gregory P. Smith | |
19 | * | |
20 | * | |
21 | * Adapted for U-Boot: | |
22 | * (C) Copyright 2001 Denis Peter, MPL AG Switzerland | |
fa82f871 | 23 | * (C) Copyright 2008, Daniel Hellström, daniel@gaisler.com |
1e9a164e DH |
24 | * Added AMBA Plug&Play detection of GRUSB, modified interrupt handler. |
25 | * Added cache flushes where needed. | |
26 | * | |
1a459660 | 27 | * SPDX-License-Identifier: GPL-2.0+ |
1e9a164e DH |
28 | */ |
29 | ||
30 | /********************************************************************** | |
31 | * How it works: | |
32 | * ------------- | |
33 | * The framelist / Transfer descriptor / Queue Heads are similar like | |
34 | * in the linux usb_uhci.c. | |
35 | * | |
36 | * During initialization, the following skeleton is allocated in init_skel: | |
37 | * | |
38 | * framespecific | common chain | |
39 | * | |
40 | * framelist[] | |
41 | * [ 0 ]-----> TD ---------\ | |
42 | * [ 1 ]-----> TD ----------> TD ------> QH -------> QH -------> QH ---> NULL | |
43 | * ... TD ---------/ | |
44 | * [1023]-----> TD --------/ | |
45 | * | |
46 | * ^^ ^^ ^^ ^^ ^^ | |
47 | * 7 TDs for 1 TD for Start of Start of End Chain | |
48 | * INT (2-128ms) 1ms-INT CTRL Chain BULK Chain | |
49 | * | |
50 | * | |
51 | * Since this is a bootloader, the isochronous transfer descriptor have been removed. | |
52 | * | |
53 | * Interrupt Transfers. | |
54 | * -------------------- | |
16263087 | 55 | * For Interrupt transfers USB_MAX_TEMP_INT_TD Transfer descriptor are available. They |
1e9a164e DH |
56 | * will be inserted after the appropriate (depending the interval setting) skeleton TD. |
57 | * If an interrupt has been detected the dev->irqhandler is called. The status and number | |
58 | * of transfered bytes is stored in dev->irq_status resp. dev->irq_act_len. If the | |
59 | * dev->irqhandler returns 0, the interrupt TD is removed and disabled. If an 1 is returned, | |
60 | * the interrupt TD will be reactivated. | |
61 | * | |
62 | * Control Transfers | |
63 | * ----------------- | |
64 | * Control Transfers are issued by filling the tmp_td with the appropriate data and connect | |
65 | * them to the qh_cntrl queue header. Before other control/bulk transfers can be issued, | |
66 | * the programm has to wait for completion. This does not allows asynchronous data transfer. | |
67 | * | |
68 | * Bulk Transfers | |
69 | * -------------- | |
70 | * Bulk Transfers are issued by filling the tmp_td with the appropriate data and connect | |
71 | * them to the qh_bulk queue header. Before other control/bulk transfers can be issued, | |
72 | * the programm has to wait for completion. This does not allows asynchronous data transfer. | |
73 | * | |
74 | * | |
75 | */ | |
76 | ||
77 | #include <common.h> | |
78 | #include <ambapp.h> | |
79 | #include <asm/leon.h> | |
80 | #include <asm/leon3.h> | |
81 | #include <asm/processor.h> | |
82 | ||
83 | #ifdef CONFIG_USB_UHCI | |
84 | ||
85 | #include <usb.h> | |
86 | #include "usb_uhci.h" | |
87 | ||
88 | #define USB_MAX_TEMP_TD 128 /* number of temporary TDs for bulk and control transfers */ | |
89 | #define USB_MAX_TEMP_INT_TD 32 /* number of temporary TDs for Interrupt transfers */ | |
90 | ||
91 | extern int leon3_snooping_avail; | |
92 | /* | |
93 | #define out16r(address,data) (*(unsigned short *)(address) = \ | |
94 | (unsigned short)( \ | |
95 | (((unsigned short)(data)&0xff)<<8) | \ | |
96 | (((unsigned short)(data)&0xff00)>>8) \ | |
97 | )) | |
98 | */ | |
99 | #define out16r(address,data) _out16r((unsigned int)(address), (unsigned short)(data)) | |
100 | void _out16r(unsigned int address, unsigned short data) | |
101 | { | |
102 | unsigned short val = (unsigned short)((((unsigned short)(data) & 0xff) | |
103 | << 8) | (((unsigned short)(data) | |
104 | & 0xff00) >> 8)); | |
105 | #ifdef UHCI_DEBUG_REGS | |
106 | printf("out16r(0x%lx,0x%04x = 0x%04x)\n", address, val, data); | |
107 | #endif | |
108 | *(unsigned short *)(address) = val; | |
109 | } | |
110 | ||
111 | #define out32r(address,data) _out32r((unsigned int)(address), (unsigned int)(data)) | |
112 | void _out32r(unsigned int address, unsigned int data) | |
113 | { | |
114 | unsigned int val = (unsigned int)((((unsigned int)(data) & 0x000000ff) | |
115 | << 24) | (((unsigned int)(data) & | |
116 | 0x0000ff00) << 8) | | |
117 | (((unsigned int)(data) & 0x00ff0000) | |
118 | >> 8) | (((unsigned int)(data) & | |
119 | 0xff000000) >> 24)); | |
120 | #ifdef UHCI_DEBUG_REGS | |
121 | printf("out32r(0x%lx,0x%lx = 0x%lx)\n", address, val, data); | |
122 | #endif | |
123 | *(unsigned int *)address = val; | |
124 | } | |
125 | ||
126 | #define in16r(address) _in16r((unsigned int)(address)) | |
127 | unsigned short _in16r(unsigned int address) | |
128 | { | |
129 | unsigned short val = sparc_load_reg_cachemiss_word(address); | |
130 | val = ((val << 8) & 0xff00) | ((val >> 8) & 0xff); | |
131 | #ifdef UHCI_DEBUG_REGS | |
132 | printf("in16r(0x%lx): 0x%04x\n", address, val); | |
133 | #endif | |
134 | return val; | |
135 | } | |
136 | ||
137 | #define in32r(address) _in32r((unsigned int)(address)) | |
138 | unsigned int _in32r(unsigned int address) | |
139 | { | |
140 | unsigned int val = sparc_load_reg_cachemiss(address); | |
141 | val = | |
142 | ((val << 24) & 0xff000000) | ((val << 8) & 0xff0000) | ((val >> 8) & | |
143 | 0xff00) | | |
144 | ((val >> 24) & 0xff); | |
145 | #ifdef UHCI_DEBUG_REGS | |
146 | printf("in32r(0x%lx): 0x%08x\n", address, val); | |
147 | #endif | |
148 | return val; | |
149 | } | |
150 | ||
151 | #define READ32(address) sparc_load_reg_cachemiss((unsigned int)(address)) | |
152 | ||
153 | /*#define USB_UHCI_DEBUG*/ | |
154 | #undef USB_UHCI_DEBUG | |
155 | ||
156 | void usb_show_td(int max); | |
157 | #ifdef USB_UHCI_DEBUG | |
158 | void grusb_show_regs(void); | |
159 | #define USB_UHCI_PRINTF(fmt,args...) printf (fmt ,##args) | |
160 | #else | |
161 | #define USB_UHCI_PRINTF(fmt,args...) | |
162 | #endif | |
163 | ||
164 | static int grusb_irq = -1; /* irq vector, if -1 uhci is stopped / reseted */ | |
165 | unsigned int usb_base_addr; /* base address */ | |
166 | ||
167 | static uhci_td_t td_int[8] __attribute__ ((aligned(16))); /* Interrupt Transfer descriptors */ | |
168 | static uhci_qh_t qh_cntrl __attribute__ ((aligned(16))); /* control Queue Head */ | |
169 | static uhci_qh_t qh_bulk __attribute__ ((aligned(16))); /* bulk Queue Head */ | |
170 | static uhci_qh_t qh_end __attribute__ ((aligned(16))); /* end Queue Head */ | |
171 | static uhci_td_t td_last __attribute__ ((aligned(16))); /* last TD (linked with end chain) */ | |
172 | ||
173 | /* temporary tds */ | |
174 | static uhci_td_t tmp_td[USB_MAX_TEMP_TD] __attribute__ ((aligned(16))); /* temporary bulk/control td's */ | |
175 | static uhci_td_t tmp_int_td[USB_MAX_TEMP_INT_TD] __attribute__ ((aligned(16))); /* temporary interrupt td's */ | |
176 | ||
177 | static unsigned long framelist[1024] __attribute__ ((aligned(0x1000))); /* frame list */ | |
178 | ||
179 | static struct virt_root_hub rh; /* struct for root hub */ | |
180 | ||
181 | /********************************************************************** | |
182 | * some forward decleration | |
183 | */ | |
184 | int uhci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, | |
185 | void *buffer, int transfer_len, | |
186 | struct devrequest *setup); | |
187 | ||
188 | /* fill a td with the approproiate data. Link, status, info and buffer | |
189 | * are used by the USB controller itselfes, dev is used to identify the | |
190 | * "connected" device | |
191 | */ | |
192 | void usb_fill_td(uhci_td_t * td, unsigned long link, unsigned long status, | |
193 | unsigned long info, unsigned long buffer, unsigned long dev) | |
194 | { | |
195 | td->link = swap_32(link); | |
196 | td->status = swap_32(status); | |
197 | if ((info & UHCI_PID) == 0) | |
198 | info |= USB_PID_OUT; | |
199 | td->info = swap_32(info); | |
200 | td->buffer = swap_32(buffer); | |
201 | td->dev_ptr = dev; | |
202 | } | |
203 | ||
204 | /* fill a qh with the approproiate data. Head and element are used by the USB controller | |
205 | * itselfes. As soon as a valid dev_ptr is filled, a td chain is connected to the qh. | |
206 | * Please note, that after completion of the td chain, the entry element is removed / | |
207 | * marked invalid by the USB controller. | |
208 | */ | |
209 | void usb_fill_qh(uhci_qh_t * qh, unsigned long head, unsigned long element) | |
210 | { | |
211 | qh->head = swap_32(head); | |
212 | qh->element = swap_32(element); | |
213 | qh->dev_ptr = 0L; | |
214 | } | |
215 | ||
216 | /* get the status of a td->status | |
217 | */ | |
218 | unsigned long usb_uhci_td_stat(unsigned long status) | |
219 | { | |
220 | unsigned long result = 0; | |
221 | result |= (status & TD_CTRL_NAK) ? USB_ST_NAK_REC : 0; | |
222 | result |= (status & TD_CTRL_STALLED) ? USB_ST_STALLED : 0; | |
223 | result |= (status & TD_CTRL_DBUFERR) ? USB_ST_BUF_ERR : 0; | |
224 | result |= (status & TD_CTRL_BABBLE) ? USB_ST_BABBLE_DET : 0; | |
225 | result |= (status & TD_CTRL_CRCTIMEO) ? USB_ST_CRC_ERR : 0; | |
226 | result |= (status & TD_CTRL_BITSTUFF) ? USB_ST_BIT_ERR : 0; | |
227 | result |= (status & TD_CTRL_ACTIVE) ? USB_ST_NOT_PROC : 0; | |
228 | return result; | |
229 | } | |
230 | ||
231 | /* get the status and the transfered len of a td chain. | |
232 | * called from the completion handler | |
233 | */ | |
234 | int usb_get_td_status(uhci_td_t * td, struct usb_device *dev) | |
235 | { | |
236 | unsigned long temp, info; | |
237 | unsigned long stat; | |
238 | uhci_td_t *mytd = td; | |
239 | ||
240 | if (dev->devnum == rh.devnum) | |
241 | return 0; | |
242 | dev->act_len = 0; | |
243 | stat = 0; | |
244 | do { | |
245 | temp = swap_32((unsigned long)READ32(&mytd->status)); | |
246 | stat = usb_uhci_td_stat(temp); | |
247 | info = swap_32((unsigned long)READ32(&mytd->info)); | |
248 | if (((info & 0xff) != USB_PID_SETUP) && (((info >> 21) & 0x7ff) != 0x7ff) && (temp & 0x7FF) != 0x7ff) { /* if not setup and not null data pack */ | |
249 | dev->act_len += (temp & 0x7FF) + 1; /* the transfered len is act_len + 1 */ | |
250 | } | |
251 | if (stat) { /* status no ok */ | |
252 | dev->status = stat; | |
253 | return -1; | |
254 | } | |
255 | temp = swap_32((unsigned long)READ32(&mytd->link)); | |
256 | mytd = (uhci_td_t *) (temp & 0xfffffff0); | |
257 | } while ((temp & 0x1) == 0); /* process all TDs */ | |
258 | dev->status = stat; | |
259 | return 0; /* Ok */ | |
260 | } | |
261 | ||
262 | /*------------------------------------------------------------------- | |
263 | * LOW LEVEL STUFF | |
264 | * assembles QHs und TDs for control, bulk and iso | |
265 | *-------------------------------------------------------------------*/ | |
266 | int dummy(void) | |
267 | { | |
268 | USB_UHCI_PRINTF("DUMMY\n"); | |
269 | return 0; | |
270 | } | |
271 | ||
272 | /* Submits a control message. That is a Setup, Data and Status transfer. | |
273 | * Routine does not wait for completion. | |
274 | */ | |
275 | int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, | |
276 | int transfer_len, struct devrequest *setup) | |
277 | { | |
278 | unsigned long destination, status; | |
279 | int maxsze = usb_maxpacket(dev, pipe); | |
280 | unsigned long dataptr; | |
281 | int len; | |
282 | int pktsze; | |
283 | int i = 0; | |
284 | ||
285 | if (!maxsze) { | |
286 | USB_UHCI_PRINTF | |
287 | ("uhci_submit_control_urb: pipesize for pipe %lx is zero\n", | |
288 | pipe); | |
289 | return -1; | |
290 | } | |
291 | if (((pipe >> 8) & 0x7f) == rh.devnum) { | |
292 | /* this is the root hub -> redirect it */ | |
293 | return uhci_submit_rh_msg(dev, pipe, buffer, transfer_len, | |
294 | setup); | |
295 | } | |
296 | USB_UHCI_PRINTF("uhci_submit_control start len %x, maxsize %x\n", | |
297 | transfer_len, maxsze); | |
298 | /* The "pipe" thing contains the destination in bits 8--18 */ | |
299 | destination = (pipe & PIPE_DEVEP_MASK) | USB_PID_SETUP; /* Setup stage */ | |
300 | /* 3 errors */ | |
301 | status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | (3 << 27); | |
302 | /* (urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD); */ | |
303 | /* Build the TD for the control request, try forever, 8 bytes of data */ | |
304 | usb_fill_td(&tmp_td[i], UHCI_PTR_TERM, status, destination | (7 << 21), | |
305 | (unsigned long)setup, (unsigned long)dev); | |
306 | #ifdef DEBUG_EXTRA | |
307 | { | |
308 | char *sp = (char *)setup; | |
309 | printf("SETUP to pipe %lx: %x %x %x %x %x %x %x %x\n", pipe, | |
310 | sp[0], sp[1], sp[2], sp[3], sp[4], sp[5], sp[6], sp[7]); | |
311 | } | |
312 | #endif | |
313 | dataptr = (unsigned long)buffer; | |
314 | len = transfer_len; | |
315 | ||
316 | /* If direction is "send", change the frame from SETUP (0x2D) | |
317 | to OUT (0xE1). Else change it from SETUP to IN (0x69). */ | |
318 | destination = | |
319 | (pipe & PIPE_DEVEP_MASK) | ((pipe & USB_DIR_IN) == | |
320 | 0 ? USB_PID_OUT : USB_PID_IN); | |
321 | while (len > 0) { | |
322 | /* data stage */ | |
323 | pktsze = len; | |
324 | i++; | |
325 | if (pktsze > maxsze) | |
326 | pktsze = maxsze; | |
327 | destination ^= 1 << TD_TOKEN_TOGGLE; /* toggle DATA0/1 */ | |
328 | usb_fill_td(&tmp_td[i], UHCI_PTR_TERM, status, destination | ((pktsze - 1) << 21), dataptr, (unsigned long)dev); /* Status, pktsze bytes of data */ | |
329 | tmp_td[i - 1].link = swap_32((unsigned long)&tmp_td[i]); | |
330 | ||
331 | dataptr += pktsze; | |
332 | len -= pktsze; | |
333 | } | |
334 | ||
335 | /* Build the final TD for control status */ | |
336 | /* It's only IN if the pipe is out AND we aren't expecting data */ | |
337 | ||
338 | destination &= ~UHCI_PID; | |
339 | if (((pipe & USB_DIR_IN) == 0) || (transfer_len == 0)) | |
340 | destination |= USB_PID_IN; | |
341 | else | |
342 | destination |= USB_PID_OUT; | |
343 | destination |= 1 << TD_TOKEN_TOGGLE; /* End in Data1 */ | |
344 | i++; | |
345 | status &= ~TD_CTRL_SPD; | |
346 | /* no limit on errors on final packet , 0 bytes of data */ | |
347 | usb_fill_td(&tmp_td[i], UHCI_PTR_TERM, status | TD_CTRL_IOC, | |
348 | destination | (UHCI_NULL_DATA_SIZE << 21), 0, | |
349 | (unsigned long)dev); | |
350 | tmp_td[i - 1].link = swap_32((unsigned long)&tmp_td[i]); /* queue status td */ | |
351 | /* usb_show_td(i+1); */ | |
352 | USB_UHCI_PRINTF("uhci_submit_control end (%d tmp_tds used)\n", i); | |
353 | /* first mark the control QH element terminated */ | |
354 | qh_cntrl.element = 0xffffffffL; | |
355 | /* set qh active */ | |
356 | qh_cntrl.dev_ptr = (unsigned long)dev; | |
357 | /* fill in tmp_td_chain */ | |
358 | dummy(); | |
359 | qh_cntrl.element = swap_32((unsigned long)&tmp_td[0]); | |
360 | return 0; | |
361 | } | |
362 | ||
363 | /*------------------------------------------------------------------- | |
364 | * Prepare TDs for bulk transfers. | |
365 | */ | |
366 | int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, | |
367 | int transfer_len) | |
368 | { | |
369 | unsigned long destination, status, info; | |
370 | unsigned long dataptr; | |
371 | int maxsze = usb_maxpacket(dev, pipe); | |
372 | int len; | |
373 | int i = 0; | |
374 | ||
375 | if (transfer_len < 0) { | |
376 | printf("Negative transfer length in submit_bulk\n"); | |
377 | return -1; | |
378 | } | |
379 | if (!maxsze) | |
380 | return -1; | |
381 | /* The "pipe" thing contains the destination in bits 8--18. */ | |
382 | destination = (pipe & PIPE_DEVEP_MASK) | usb_packetid(pipe); | |
383 | /* 3 errors */ | |
384 | status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | (3 << 27); | |
385 | /* ((urb->transfer_flags & USB_DISABLE_SPD) ? 0 : TD_CTRL_SPD) | (3 << 27); */ | |
386 | /* Build the TDs for the bulk request */ | |
387 | len = transfer_len; | |
388 | dataptr = (unsigned long)buffer; | |
389 | do { | |
390 | int pktsze = len; | |
391 | if (pktsze > maxsze) | |
392 | pktsze = maxsze; | |
393 | /* pktsze bytes of data */ | |
394 | info = | |
395 | destination | (((pktsze - 1) & UHCI_NULL_DATA_SIZE) << 21) | | |
396 | (usb_gettoggle | |
397 | (dev, usb_pipeendpoint(pipe), | |
398 | usb_pipeout(pipe)) << TD_TOKEN_TOGGLE); | |
399 | ||
400 | if ((len - pktsze) == 0) | |
401 | status |= TD_CTRL_IOC; /* last one generates INT */ | |
402 | ||
403 | usb_fill_td(&tmp_td[i], UHCI_PTR_TERM, status, info, dataptr, (unsigned long)dev); /* Status, pktsze bytes of data */ | |
404 | if (i > 0) | |
405 | tmp_td[i - 1].link = swap_32((unsigned long)&tmp_td[i]); | |
406 | i++; | |
407 | dataptr += pktsze; | |
408 | len -= pktsze; | |
409 | usb_dotoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)); | |
410 | } while (len > 0); | |
411 | /* first mark the bulk QH element terminated */ | |
412 | qh_bulk.element = 0xffffffffL; | |
413 | /* set qh active */ | |
414 | qh_bulk.dev_ptr = (unsigned long)dev; | |
415 | /* fill in tmp_td_chain */ | |
416 | qh_bulk.element = swap_32((unsigned long)&tmp_td[0]); | |
417 | return 0; | |
418 | } | |
419 | ||
420 | /* search a free interrupt td | |
421 | */ | |
422 | uhci_td_t *uhci_alloc_int_td(void) | |
423 | { | |
424 | int i; | |
425 | for (i = 0; i < USB_MAX_TEMP_INT_TD; i++) { | |
426 | if (tmp_int_td[i].dev_ptr == 0) /* no device assigned -> free TD */ | |
427 | return &tmp_int_td[i]; | |
428 | } | |
429 | return NULL; | |
430 | } | |
431 | ||
432 | /*------------------------------------------------------------------- | |
433 | * submits USB interrupt (ie. polling ;-) | |
434 | */ | |
435 | int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, | |
436 | int transfer_len, int interval) | |
437 | { | |
438 | int nint, n; | |
439 | unsigned long status, destination; | |
440 | unsigned long info, tmp; | |
441 | uhci_td_t *mytd; | |
442 | if (interval < 0 || interval >= 256) | |
443 | return -1; | |
444 | ||
445 | if (interval == 0) | |
446 | nint = 0; | |
447 | else { | |
448 | for (nint = 0, n = 1; nint <= 8; nint++, n += n) { /* round interval down to 2^n */ | |
449 | if (interval < n) { | |
450 | interval = n / 2; | |
451 | break; | |
452 | } | |
453 | } | |
454 | nint--; | |
455 | } | |
456 | ||
457 | USB_UHCI_PRINTF("Rounded interval to %i, chain %i\n", interval, nint); | |
458 | mytd = uhci_alloc_int_td(); | |
459 | if (mytd == NULL) { | |
460 | printf("No free INT TDs found\n"); | |
461 | return -1; | |
462 | } | |
463 | status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | TD_CTRL_IOC | (3 << 27); | |
464 | /* (urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD) | (3 << 27); | |
465 | */ | |
466 | ||
467 | destination = | |
468 | (pipe & PIPE_DEVEP_MASK) | usb_packetid(pipe) | | |
469 | (((transfer_len - 1) & 0x7ff) << 21); | |
470 | ||
471 | info = | |
472 | destination | | |
473 | (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)) << | |
474 | TD_TOKEN_TOGGLE); | |
475 | tmp = swap_32(td_int[nint].link); | |
476 | usb_fill_td(mytd, tmp, status, info, (unsigned long)buffer, | |
477 | (unsigned long)dev); | |
478 | /* Link it */ | |
479 | tmp = swap_32((unsigned long)mytd); | |
480 | td_int[nint].link = tmp; | |
481 | ||
482 | usb_dotoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)); | |
483 | ||
484 | return 0; | |
485 | } | |
486 | ||
487 | /********************************************************************** | |
488 | * Low Level functions | |
489 | */ | |
490 | ||
491 | void reset_hc(void) | |
492 | { | |
493 | ||
494 | /* Global reset for 100ms */ | |
495 | out16r(usb_base_addr + USBPORTSC1, 0x0204); | |
496 | out16r(usb_base_addr + USBPORTSC2, 0x0204); | |
497 | out16r(usb_base_addr + USBCMD, USBCMD_GRESET | USBCMD_RS); | |
498 | /* Turn off all interrupts */ | |
499 | out16r(usb_base_addr + USBINTR, 0); | |
5b84dd67 | 500 | mdelay(50); |
1e9a164e | 501 | out16r(usb_base_addr + USBCMD, 0); |
5b84dd67 | 502 | mdelay(10); |
1e9a164e DH |
503 | } |
504 | ||
505 | void start_hc(void) | |
506 | { | |
507 | int timeout = 1000; | |
508 | ||
509 | while (in16r(usb_base_addr + USBCMD) & USBCMD_HCRESET) { | |
510 | if (!--timeout) { | |
511 | printf("USBCMD_HCRESET timed out!\n"); | |
512 | break; | |
513 | } | |
514 | } | |
515 | /* Turn on all interrupts */ | |
516 | out16r(usb_base_addr + USBINTR, | |
517 | USBINTR_TIMEOUT | USBINTR_RESUME | USBINTR_IOC | USBINTR_SP); | |
518 | /* Start at frame 0 */ | |
519 | out16r(usb_base_addr + USBFRNUM, 0); | |
520 | /* set Framebuffer base address */ | |
521 | out32r(usb_base_addr + USBFLBASEADD, (unsigned long)&framelist); | |
522 | /* Run and mark it configured with a 64-byte max packet */ | |
523 | out16r(usb_base_addr + USBCMD, USBCMD_RS | USBCMD_CF | USBCMD_MAXP); | |
524 | } | |
525 | ||
526 | /* Initialize the skeleton | |
527 | */ | |
528 | void usb_init_skel(void) | |
529 | { | |
530 | unsigned long temp; | |
531 | int n; | |
532 | ||
533 | for (n = 0; n < USB_MAX_TEMP_INT_TD; n++) | |
534 | tmp_int_td[n].dev_ptr = 0L; /* no devices connected */ | |
535 | /* last td */ | |
536 | usb_fill_td(&td_last, UHCI_PTR_TERM, TD_CTRL_IOC, USB_PID_OUT, 0, 0L); | |
537 | /* usb_fill_td(&td_last,UHCI_PTR_TERM,0,0,0); */ | |
538 | /* End Queue Header */ | |
539 | usb_fill_qh(&qh_end, UHCI_PTR_TERM, (unsigned long)&td_last); | |
540 | /* Bulk Queue Header */ | |
541 | temp = (unsigned long)&qh_end; | |
542 | usb_fill_qh(&qh_bulk, temp | UHCI_PTR_QH, UHCI_PTR_TERM); | |
543 | /* Control Queue Header */ | |
544 | temp = (unsigned long)&qh_bulk; | |
545 | usb_fill_qh(&qh_cntrl, temp | UHCI_PTR_QH, UHCI_PTR_TERM); | |
546 | /* 1ms Interrupt td */ | |
547 | temp = (unsigned long)&qh_cntrl; | |
548 | usb_fill_td(&td_int[0], temp | UHCI_PTR_QH, 0, USB_PID_OUT, 0, 0L); | |
549 | temp = (unsigned long)&td_int[0]; | |
550 | for (n = 1; n < 8; n++) | |
551 | usb_fill_td(&td_int[n], temp, 0, USB_PID_OUT, 0, 0L); | |
552 | for (n = 0; n < 1024; n++) { | |
553 | /* link all framelist pointers to one of the interrupts */ | |
554 | int m, o; | |
555 | if ((n & 127) == 127) | |
556 | framelist[n] = swap_32((unsigned long)&td_int[0]); | |
557 | else | |
558 | for (o = 1, m = 2; m <= 128; o++, m += m) | |
559 | if ((n & (m - 1)) == ((m - 1) / 2)) | |
560 | framelist[n] = | |
561 | swap_32((unsigned long)&td_int[o]); | |
562 | ||
563 | } | |
564 | } | |
565 | ||
566 | /* check the common skeleton for completed transfers, and update the status | |
567 | * of the "connected" device. Called from the IRQ routine. | |
568 | */ | |
569 | void usb_check_skel(void) | |
570 | { | |
571 | struct usb_device *dev; | |
572 | /* start with the control qh */ | |
573 | if (qh_cntrl.dev_ptr != 0) { /* it's a device assigned check if this caused IRQ */ | |
574 | dev = (struct usb_device *)qh_cntrl.dev_ptr; | |
575 | /* Flush cache now that hardware updated DATA and TDs/QHs */ | |
576 | if (!leon3_snooping_avail) | |
577 | sparc_dcache_flush_all(); | |
578 | usb_get_td_status(&tmp_td[0], dev); /* update status */ | |
579 | if (!(dev->status & USB_ST_NOT_PROC)) { /* is not active anymore, disconnect devices */ | |
580 | qh_cntrl.dev_ptr = 0; | |
581 | } | |
582 | } | |
583 | /* now process the bulk */ | |
584 | if (qh_bulk.dev_ptr != 0) { /* it's a device assigned check if this caused IRQ */ | |
585 | dev = (struct usb_device *)qh_bulk.dev_ptr; | |
586 | /* Flush cache now that hardware updated DATA and TDs/QHs */ | |
587 | if (!leon3_snooping_avail) | |
588 | sparc_dcache_flush_all(); | |
589 | usb_get_td_status(&tmp_td[0], dev); /* update status */ | |
590 | if (!(dev->status & USB_ST_NOT_PROC)) { /* is not active anymore, disconnect devices */ | |
591 | qh_bulk.dev_ptr = 0; | |
592 | } | |
593 | } | |
594 | } | |
595 | ||
596 | /* check the interrupt chain, ubdate the status of the appropriate device, | |
597 | * call the appropriate irqhandler and reactivate the TD if the irqhandler | |
598 | * returns with 1 | |
599 | */ | |
600 | void usb_check_int_chain(void) | |
601 | { | |
602 | int i, res; | |
603 | unsigned long link, status; | |
604 | struct usb_device *dev; | |
605 | uhci_td_t *td, *prevtd; | |
606 | ||
607 | for (i = 0; i < 8; i++) { | |
608 | prevtd = &td_int[i]; /* the first previous td is the skeleton td */ | |
609 | link = swap_32(READ32(&td_int[i].link)) & 0xfffffff0; /* next in chain */ | |
610 | td = (uhci_td_t *) link; /* assign it */ | |
611 | /* all interrupt TDs are finally linked to the td_int[0]. | |
612 | * so we process all until we find the td_int[0]. | |
613 | * if int0 chain points to a QH, we're also done | |
614 | */ | |
615 | while (((i > 0) && (link != (unsigned long)&td_int[0])) || | |
616 | ((i == 0) | |
617 | && !(swap_32(READ32(&td->link)) & UHCI_PTR_QH))) { | |
618 | /* check if a device is assigned with this td */ | |
619 | status = swap_32(READ32(&td->status)); | |
620 | if ((td->dev_ptr != 0L) && !(status & TD_CTRL_ACTIVE)) { | |
621 | /* td is not active and a device is assigned -> call irqhandler */ | |
622 | dev = (struct usb_device *)td->dev_ptr; | |
623 | dev->irq_act_len = ((status & 0x7FF) == 0x7FF) ? 0 : (status & 0x7FF) + 1; /* transfered length */ | |
624 | dev->irq_status = usb_uhci_td_stat(status); /* get status */ | |
625 | res = dev->irq_handle(dev); /* call irqhandler */ | |
626 | if (res == 1) { | |
627 | /* reactivate */ | |
628 | status |= TD_CTRL_ACTIVE; | |
629 | td->status = swap_32(status); | |
630 | prevtd = td; /* previous td = this td */ | |
631 | } else { | |
632 | prevtd->link = READ32(&td->link); /* link previous td directly to the nex td -> unlinked */ | |
633 | /* remove device pointer */ | |
634 | td->dev_ptr = 0L; | |
635 | } | |
636 | } /* if we call the irq handler */ | |
637 | link = swap_32(READ32(&td->link)) & 0xfffffff0; /* next in chain */ | |
638 | td = (uhci_td_t *) link; /* assign it */ | |
639 | } /* process all td in this int chain */ | |
640 | } /* next interrupt chain */ | |
641 | } | |
642 | ||
643 | /* usb interrupt service routine. | |
644 | */ | |
645 | void handle_usb_interrupt(void) | |
646 | { | |
647 | unsigned short status; | |
648 | static int error = 0; | |
649 | ||
650 | /* | |
651 | * Read the interrupt status, and write it back to clear the | |
652 | * interrupt cause | |
653 | */ | |
654 | ||
655 | status = in16r(usb_base_addr + USBSTS); | |
656 | ||
657 | if (!status) /* shared interrupt, not mine */ | |
658 | return; | |
659 | if (status != 1) { | |
660 | /* remove host controller halted state */ | |
661 | if ((status & (USBSTS_HCPE | USBSTS_HCH)) == | |
662 | (USBSTS_HCPE | USBSTS_HCH)) { | |
663 | /* Stop due to bug in driver, or hardware */ | |
664 | out16r(usb_base_addr + USBSTS, status); | |
665 | out16r(usb_base_addr + USBCMD, | |
666 | USBCMD_HCRESET | USBCMD_GRESET); | |
667 | printf | |
668 | ("GRUSB: HW detected error(s) in USB Descriptors (STS: 0x%x)\n", | |
669 | status); | |
670 | usb_show_td(8); | |
671 | return; | |
672 | } else if ((status & 0x20) | |
673 | && ((in16r(usb_base_addr + USBCMD) & USBCMD_RS) == | |
674 | 0)) { | |
675 | if (error < 10) { | |
676 | out16r(usb_base_addr + USBCMD, | |
677 | USBCMD_RS | in16r(usb_base_addr + | |
678 | USBCMD)); | |
679 | error++; | |
680 | } | |
681 | } else | |
682 | error = 0; | |
683 | } | |
684 | usb_check_int_chain(); /* call interrupt handlers for int tds */ | |
685 | usb_check_skel(); /* call completion handler for common transfer routines */ | |
686 | out16r(usb_base_addr + USBSTS, status); | |
687 | } | |
688 | ||
689 | /* init uhci | |
690 | */ | |
c7e3b2b5 | 691 | int usb_lowlevel_init(int index, void **controller) |
1e9a164e DH |
692 | { |
693 | unsigned char temp; | |
694 | ambapp_ahbdev ahbdev; | |
695 | ||
696 | /* Find GRUSB core using AMBA Plug&Play information */ | |
697 | if (ambapp_ahbslv_first(VENDOR_GAISLER, GAISLER_UHCI, &ahbdev) != 1) { | |
698 | printf("USB UHCI: Failed to find GRUSB controller\n"); | |
699 | return -1; | |
700 | } | |
701 | usb_base_addr = ahbdev.address[0]; | |
702 | grusb_irq = ahbdev.irq; | |
703 | /* | |
704 | usb_base_addr = 0xfffa0000; | |
705 | grusb_irq = 10; | |
706 | */ | |
707 | #ifdef USB_UHCI_DEBUG | |
708 | grusb_show_regs(); | |
709 | #endif | |
710 | memset(td_int, 0, sizeof(td_int)); | |
711 | memset(tmp_td, 0, sizeof(tmp_td)); | |
712 | memset(tmp_int_td, 0, sizeof(tmp_int_td)); | |
713 | memset(&qh_cntrl, 0, sizeof(qh_cntrl)); | |
714 | memset(&qh_end, 0, sizeof(qh_end)); | |
715 | memset(&td_last, 0, sizeof(td_last)); | |
716 | ||
717 | irq_free_handler(grusb_irq); | |
718 | USB_UHCI_PRINTF("GRUSB: at 0x%lx irq %d\n", usb_base_addr, grusb_irq); | |
719 | rh.devnum = 0; | |
720 | usb_init_skel(); | |
721 | reset_hc(); | |
722 | start_hc(); | |
723 | irq_install_handler(grusb_irq, | |
724 | (interrupt_handler_t *) handle_usb_interrupt, NULL); | |
725 | return 0; | |
726 | } | |
727 | ||
728 | /* stop uhci | |
729 | */ | |
c7e3b2b5 | 730 | int usb_lowlevel_stop(int index) |
1e9a164e DH |
731 | { |
732 | if (grusb_irq == -1) | |
733 | return 1; | |
734 | irq_free_handler(grusb_irq); | |
735 | reset_hc(); | |
736 | grusb_irq = -1; | |
737 | return 0; | |
738 | } | |
739 | ||
740 | /******************************************************************************************* | |
741 | * Virtual Root Hub | |
742 | * Since the uhci does not have a real HUB, we simulate one ;-) | |
743 | */ | |
744 | #undef USB_RH_DEBUG | |
745 | ||
746 | #ifdef USB_RH_DEBUG | |
747 | #define USB_RH_PRINTF(fmt,args...) printf (fmt ,##args) | |
748 | static void usb_display_wValue(unsigned short wValue, unsigned short wIndex); | |
749 | static void usb_display_Req(unsigned short req); | |
750 | #else | |
751 | #define USB_RH_PRINTF(fmt,args...) | |
752 | static void usb_display_wValue(unsigned short wValue, unsigned short wIndex) | |
753 | { | |
754 | } | |
755 | static void usb_display_Req(unsigned short req) | |
756 | { | |
757 | } | |
758 | #endif | |
759 | ||
760 | static unsigned char root_hub_dev_des[] = { | |
761 | 0x12, /* __u8 bLength; */ | |
762 | 0x01, /* __u8 bDescriptorType; Device */ | |
763 | 0x00, /* __u16 bcdUSB; v1.0 */ | |
764 | 0x01, | |
765 | 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ | |
766 | 0x00, /* __u8 bDeviceSubClass; */ | |
767 | 0x00, /* __u8 bDeviceProtocol; */ | |
768 | 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ | |
769 | 0x00, /* __u16 idVendor; */ | |
770 | 0x00, | |
771 | 0x00, /* __u16 idProduct; */ | |
772 | 0x00, | |
773 | 0x00, /* __u16 bcdDevice; */ | |
774 | 0x00, | |
775 | 0x01, /* __u8 iManufacturer; */ | |
776 | 0x00, /* __u8 iProduct; */ | |
777 | 0x00, /* __u8 iSerialNumber; */ | |
778 | 0x01 /* __u8 bNumConfigurations; */ | |
779 | }; | |
780 | ||
781 | /* Configuration descriptor */ | |
782 | static unsigned char root_hub_config_des[] = { | |
783 | 0x09, /* __u8 bLength; */ | |
784 | 0x02, /* __u8 bDescriptorType; Configuration */ | |
785 | 0x19, /* __u16 wTotalLength; */ | |
786 | 0x00, | |
787 | 0x01, /* __u8 bNumInterfaces; */ | |
788 | 0x01, /* __u8 bConfigurationValue; */ | |
789 | 0x00, /* __u8 iConfiguration; */ | |
790 | 0x40, /* __u8 bmAttributes; | |
791 | Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ | |
792 | 0x00, /* __u8 MaxPower; */ | |
793 | ||
794 | /* interface */ | |
795 | 0x09, /* __u8 if_bLength; */ | |
796 | 0x04, /* __u8 if_bDescriptorType; Interface */ | |
797 | 0x00, /* __u8 if_bInterfaceNumber; */ | |
798 | 0x00, /* __u8 if_bAlternateSetting; */ | |
799 | 0x01, /* __u8 if_bNumEndpoints; */ | |
800 | 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ | |
801 | 0x00, /* __u8 if_bInterfaceSubClass; */ | |
802 | 0x00, /* __u8 if_bInterfaceProtocol; */ | |
803 | 0x00, /* __u8 if_iInterface; */ | |
804 | ||
805 | /* endpoint */ | |
806 | 0x07, /* __u8 ep_bLength; */ | |
807 | 0x05, /* __u8 ep_bDescriptorType; Endpoint */ | |
808 | 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ | |
809 | 0x03, /* __u8 ep_bmAttributes; Interrupt */ | |
810 | 0x08, /* __u16 ep_wMaxPacketSize; 8 Bytes */ | |
811 | 0x00, | |
812 | 0xff /* __u8 ep_bInterval; 255 ms */ | |
813 | }; | |
814 | ||
815 | static unsigned char root_hub_hub_des[] = { | |
816 | 0x09, /* __u8 bLength; */ | |
817 | 0x29, /* __u8 bDescriptorType; Hub-descriptor */ | |
818 | 0x02, /* __u8 bNbrPorts; */ | |
819 | 0x00, /* __u16 wHubCharacteristics; */ | |
820 | 0x00, | |
821 | 0x01, /* __u8 bPwrOn2pwrGood; 2ms */ | |
822 | 0x00, /* __u8 bHubContrCurrent; 0 mA */ | |
823 | 0x00, /* __u8 DeviceRemovable; *** 7 Ports max *** */ | |
824 | 0xff /* __u8 PortPwrCtrlMask; *** 7 ports max *** */ | |
825 | }; | |
826 | ||
827 | static unsigned char root_hub_str_index0[] = { | |
828 | 0x04, /* __u8 bLength; */ | |
829 | 0x03, /* __u8 bDescriptorType; String-descriptor */ | |
830 | 0x09, /* __u8 lang ID */ | |
831 | 0x04, /* __u8 lang ID */ | |
832 | }; | |
833 | ||
834 | static unsigned char root_hub_str_index1[] = { | |
835 | 28, /* __u8 bLength; */ | |
836 | 0x03, /* __u8 bDescriptorType; String-descriptor */ | |
837 | 'U', /* __u8 Unicode */ | |
838 | 0, /* __u8 Unicode */ | |
839 | 'H', /* __u8 Unicode */ | |
840 | 0, /* __u8 Unicode */ | |
841 | 'C', /* __u8 Unicode */ | |
842 | 0, /* __u8 Unicode */ | |
843 | 'I', /* __u8 Unicode */ | |
844 | 0, /* __u8 Unicode */ | |
845 | ' ', /* __u8 Unicode */ | |
846 | 0, /* __u8 Unicode */ | |
847 | 'R', /* __u8 Unicode */ | |
848 | 0, /* __u8 Unicode */ | |
849 | 'o', /* __u8 Unicode */ | |
850 | 0, /* __u8 Unicode */ | |
851 | 'o', /* __u8 Unicode */ | |
852 | 0, /* __u8 Unicode */ | |
853 | 't', /* __u8 Unicode */ | |
854 | 0, /* __u8 Unicode */ | |
855 | ' ', /* __u8 Unicode */ | |
856 | 0, /* __u8 Unicode */ | |
857 | 'H', /* __u8 Unicode */ | |
858 | 0, /* __u8 Unicode */ | |
859 | 'u', /* __u8 Unicode */ | |
860 | 0, /* __u8 Unicode */ | |
861 | 'b', /* __u8 Unicode */ | |
862 | 0, /* __u8 Unicode */ | |
863 | }; | |
864 | ||
865 | /* | |
866 | * Root Hub Control Pipe (interrupt Pipes are not supported) | |
867 | */ | |
868 | ||
869 | int uhci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, void *buffer, | |
870 | int transfer_len, struct devrequest *cmd) | |
871 | { | |
872 | void *data = buffer; | |
873 | int leni = transfer_len; | |
874 | int len = 0; | |
875 | int status = 0; | |
876 | int stat = 0; | |
877 | int i; | |
878 | ||
879 | unsigned short cstatus; | |
880 | ||
881 | unsigned short bmRType_bReq; | |
882 | unsigned short wValue; | |
883 | unsigned short wIndex; | |
884 | unsigned short wLength; | |
885 | ||
9dbc3667 | 886 | if (usb_pipeint(pipe)) { |
1e9a164e DH |
887 | printf("Root-Hub submit IRQ: NOT implemented\n"); |
888 | return 0; | |
889 | } | |
890 | bmRType_bReq = cmd->requesttype | cmd->request << 8; | |
891 | wValue = swap_16(cmd->value); | |
892 | wIndex = swap_16(cmd->index); | |
893 | wLength = swap_16(cmd->length); | |
894 | usb_display_Req(bmRType_bReq); | |
895 | for (i = 0; i < 8; i++) | |
896 | rh.c_p_r[i] = 0; | |
897 | USB_RH_PRINTF("Root-Hub: adr: %2x cmd(%1x): %02x%02x %04x %04x %04x\n", | |
898 | dev->devnum, 8, cmd->requesttype, cmd->request, wValue, | |
899 | wIndex, wLength); | |
900 | ||
901 | switch (bmRType_bReq) { | |
902 | /* Request Destination: | |
903 | without flags: Device, | |
904 | RH_INTERFACE: interface, | |
905 | RH_ENDPOINT: endpoint, | |
906 | RH_CLASS means HUB here, | |
907 | RH_OTHER | RH_CLASS almost ever means HUB_PORT here | |
908 | */ | |
909 | ||
910 | case RH_GET_STATUS: | |
911 | *(unsigned short *)data = swap_16(1); | |
912 | len = 2; | |
913 | break; | |
914 | case RH_GET_STATUS | RH_INTERFACE: | |
915 | *(unsigned short *)data = swap_16(0); | |
916 | len = 2; | |
917 | break; | |
918 | case RH_GET_STATUS | RH_ENDPOINT: | |
919 | *(unsigned short *)data = swap_16(0); | |
920 | len = 2; | |
921 | break; | |
922 | case RH_GET_STATUS | RH_CLASS: | |
923 | *(unsigned long *)data = swap_32(0); | |
924 | len = 4; | |
925 | break; /* hub power ** */ | |
926 | case RH_GET_STATUS | RH_OTHER | RH_CLASS: | |
927 | ||
928 | status = in16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1)); | |
929 | cstatus = ((status & USBPORTSC_CSC) >> (1 - 0)) | | |
930 | ((status & USBPORTSC_PEC) >> (3 - 1)) | | |
931 | (rh.c_p_r[wIndex - 1] << (0 + 4)); | |
932 | status = (status & USBPORTSC_CCS) | ((status & USBPORTSC_PE) >> (2 - 1)) | ((status & USBPORTSC_SUSP) >> (12 - 2)) | ((status & USBPORTSC_PR) >> (9 - 4)) | (1 << 8) | /* power on ** */ | |
933 | ((status & USBPORTSC_LSDA) << (-8 + 9)); | |
934 | ||
935 | *(unsigned short *)data = swap_16(status); | |
936 | *(unsigned short *)(data + 2) = swap_16(cstatus); | |
937 | len = 4; | |
938 | break; | |
939 | case RH_CLEAR_FEATURE | RH_ENDPOINT: | |
940 | switch (wValue) { | |
941 | case (RH_ENDPOINT_STALL): | |
942 | len = 0; | |
943 | break; | |
944 | } | |
945 | break; | |
946 | ||
947 | case RH_CLEAR_FEATURE | RH_CLASS: | |
948 | switch (wValue) { | |
949 | case (RH_C_HUB_OVER_CURRENT): | |
950 | len = 0; /* hub power over current ** */ | |
951 | break; | |
952 | } | |
953 | break; | |
954 | ||
955 | case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: | |
956 | usb_display_wValue(wValue, wIndex); | |
957 | switch (wValue) { | |
958 | case (RH_PORT_ENABLE): | |
959 | status = | |
960 | in16r(usb_base_addr + USBPORTSC1 + | |
961 | 2 * (wIndex - 1)); | |
962 | status = (status & 0xfff5) & ~USBPORTSC_PE; | |
963 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
964 | status); | |
965 | len = 0; | |
966 | break; | |
967 | case (RH_PORT_SUSPEND): | |
968 | status = | |
969 | in16r(usb_base_addr + USBPORTSC1 + | |
970 | 2 * (wIndex - 1)); | |
971 | status = (status & 0xfff5) & ~USBPORTSC_SUSP; | |
972 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
973 | status); | |
974 | len = 0; | |
975 | break; | |
976 | case (RH_PORT_POWER): | |
977 | len = 0; /* port power ** */ | |
978 | break; | |
979 | case (RH_C_PORT_CONNECTION): | |
980 | status = | |
981 | in16r(usb_base_addr + USBPORTSC1 + | |
982 | 2 * (wIndex - 1)); | |
983 | status = (status & 0xfff5) | USBPORTSC_CSC; | |
984 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
985 | status); | |
986 | len = 0; | |
987 | break; | |
988 | case (RH_C_PORT_ENABLE): | |
989 | status = | |
990 | in16r(usb_base_addr + USBPORTSC1 + | |
991 | 2 * (wIndex - 1)); | |
992 | status = (status & 0xfff5) | USBPORTSC_PEC; | |
993 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
994 | status); | |
995 | len = 0; | |
996 | break; | |
997 | case (RH_C_PORT_SUSPEND): | |
998 | /*** WR_RH_PORTSTAT(RH_PS_PSSC); */ | |
999 | len = 0; | |
1000 | break; | |
1001 | case (RH_C_PORT_OVER_CURRENT): | |
1002 | len = 0; | |
1003 | break; | |
1004 | case (RH_C_PORT_RESET): | |
1005 | rh.c_p_r[wIndex - 1] = 0; | |
1006 | len = 0; | |
1007 | break; | |
1008 | } | |
1009 | break; | |
1010 | case RH_SET_FEATURE | RH_OTHER | RH_CLASS: | |
1011 | usb_display_wValue(wValue, wIndex); | |
1012 | switch (wValue) { | |
1013 | case (RH_PORT_SUSPEND): | |
1014 | status = | |
1015 | in16r(usb_base_addr + USBPORTSC1 + | |
1016 | 2 * (wIndex - 1)); | |
1017 | status = (status & 0xfff5) | USBPORTSC_SUSP; | |
1018 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
1019 | status); | |
1020 | len = 0; | |
1021 | break; | |
1022 | case (RH_PORT_RESET): | |
1023 | status = | |
1024 | in16r(usb_base_addr + USBPORTSC1 + | |
1025 | 2 * (wIndex - 1)); | |
1026 | status = (status & 0xfff5) | USBPORTSC_PR; | |
1027 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
1028 | status); | |
5b84dd67 | 1029 | mdelay(10); |
1e9a164e DH |
1030 | status = (status & 0xfff5) & ~USBPORTSC_PR; |
1031 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
1032 | status); | |
1033 | udelay(10); | |
1034 | status = (status & 0xfff5) | USBPORTSC_PE; | |
1035 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
1036 | status); | |
5b84dd67 | 1037 | mdelay(10); |
1e9a164e DH |
1038 | status = (status & 0xfff5) | 0xa; |
1039 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
1040 | status); | |
1041 | len = 0; | |
1042 | break; | |
1043 | case (RH_PORT_POWER): | |
1044 | len = 0; /* port power ** */ | |
1045 | break; | |
1046 | case (RH_PORT_ENABLE): | |
1047 | status = | |
1048 | in16r(usb_base_addr + USBPORTSC1 + | |
1049 | 2 * (wIndex - 1)); | |
1050 | status = (status & 0xfff5) | USBPORTSC_PE; | |
1051 | out16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1), | |
1052 | status); | |
1053 | len = 0; | |
1054 | break; | |
1055 | } | |
1056 | break; | |
1057 | ||
1058 | case RH_SET_ADDRESS: | |
1059 | rh.devnum = wValue; | |
1060 | len = 0; | |
1061 | break; | |
1062 | case RH_GET_DESCRIPTOR: | |
1063 | switch ((wValue & 0xff00) >> 8) { | |
1064 | case (0x01): /* device descriptor */ | |
1065 | i = sizeof(root_hub_config_des); | |
1066 | status = i > wLength ? wLength : i; | |
1067 | len = leni > status ? status : leni; | |
1068 | memcpy(data, root_hub_dev_des, len); | |
1069 | break; | |
1070 | case (0x02): /* configuration descriptor */ | |
1071 | i = sizeof(root_hub_config_des); | |
1072 | status = i > wLength ? wLength : i; | |
1073 | len = leni > status ? status : leni; | |
1074 | memcpy(data, root_hub_config_des, len); | |
1075 | break; | |
1076 | case (0x03): /*string descriptors */ | |
1077 | if (wValue == 0x0300) { | |
1078 | i = sizeof(root_hub_str_index0); | |
1079 | status = i > wLength ? wLength : i; | |
1080 | len = leni > status ? status : leni; | |
1081 | memcpy(data, root_hub_str_index0, len); | |
1082 | break; | |
1083 | } | |
1084 | if (wValue == 0x0301) { | |
1085 | i = sizeof(root_hub_str_index1); | |
1086 | status = i > wLength ? wLength : i; | |
1087 | len = leni > status ? status : leni; | |
1088 | memcpy(data, root_hub_str_index1, len); | |
1089 | break; | |
1090 | } | |
1091 | stat = USB_ST_STALLED; | |
1092 | } | |
1093 | break; | |
1094 | ||
1095 | case RH_GET_DESCRIPTOR | RH_CLASS: | |
1096 | root_hub_hub_des[2] = 2; | |
1097 | i = sizeof(root_hub_hub_des); | |
1098 | status = i > wLength ? wLength : i; | |
1099 | len = leni > status ? status : leni; | |
1100 | memcpy(data, root_hub_hub_des, len); | |
1101 | break; | |
1102 | case RH_GET_CONFIGURATION: | |
1103 | *(unsigned char *)data = 0x01; | |
1104 | len = 1; | |
1105 | break; | |
1106 | case RH_SET_CONFIGURATION: | |
1107 | len = 0; | |
1108 | break; | |
1109 | default: | |
1110 | stat = USB_ST_STALLED; | |
1111 | } | |
1112 | USB_RH_PRINTF("Root-Hub stat %lx port1: %x port2: %x\n\n", stat, | |
1113 | in16r(usb_base_addr + USBPORTSC1), | |
1114 | in16r(usb_base_addr + USBPORTSC2)); | |
1115 | dev->act_len = len; | |
1116 | dev->status = stat; | |
1117 | return stat; | |
1118 | ||
1119 | } | |
1120 | ||
1121 | /******************************************************************************** | |
1122 | * Some Debug Routines | |
1123 | */ | |
1124 | ||
1125 | #ifdef USB_RH_DEBUG | |
1126 | ||
1127 | static void usb_display_Req(unsigned short req) | |
1128 | { | |
1129 | USB_RH_PRINTF("- Root-Hub Request: "); | |
1130 | switch (req) { | |
1131 | case RH_GET_STATUS: | |
1132 | USB_RH_PRINTF("Get Status "); | |
1133 | break; | |
1134 | case RH_GET_STATUS | RH_INTERFACE: | |
1135 | USB_RH_PRINTF("Get Status Interface "); | |
1136 | break; | |
1137 | case RH_GET_STATUS | RH_ENDPOINT: | |
1138 | USB_RH_PRINTF("Get Status Endpoint "); | |
1139 | break; | |
1140 | case RH_GET_STATUS | RH_CLASS: | |
1141 | USB_RH_PRINTF("Get Status Class"); | |
1142 | break; /* hub power ** */ | |
1143 | case RH_GET_STATUS | RH_OTHER | RH_CLASS: | |
1144 | USB_RH_PRINTF("Get Status Class Others"); | |
1145 | break; | |
1146 | case RH_CLEAR_FEATURE | RH_ENDPOINT: | |
1147 | USB_RH_PRINTF("Clear Feature Endpoint "); | |
1148 | break; | |
1149 | case RH_CLEAR_FEATURE | RH_CLASS: | |
1150 | USB_RH_PRINTF("Clear Feature Class "); | |
1151 | break; | |
1152 | case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: | |
1153 | USB_RH_PRINTF("Clear Feature Other Class "); | |
1154 | break; | |
1155 | case RH_SET_FEATURE | RH_OTHER | RH_CLASS: | |
1156 | USB_RH_PRINTF("Set Feature Other Class "); | |
1157 | break; | |
1158 | case RH_SET_ADDRESS: | |
1159 | USB_RH_PRINTF("Set Address "); | |
1160 | break; | |
1161 | case RH_GET_DESCRIPTOR: | |
1162 | USB_RH_PRINTF("Get Descriptor "); | |
1163 | break; | |
1164 | case RH_GET_DESCRIPTOR | RH_CLASS: | |
1165 | USB_RH_PRINTF("Get Descriptor Class "); | |
1166 | break; | |
1167 | case RH_GET_CONFIGURATION: | |
1168 | USB_RH_PRINTF("Get Configuration "); | |
1169 | break; | |
1170 | case RH_SET_CONFIGURATION: | |
1171 | USB_RH_PRINTF("Get Configuration "); | |
1172 | break; | |
1173 | default: | |
1174 | USB_RH_PRINTF("****UNKNOWN**** 0x%04X ", req); | |
1175 | } | |
1176 | USB_RH_PRINTF("\n"); | |
1177 | ||
1178 | } | |
1179 | ||
1180 | static void usb_display_wValue(unsigned short wValue, unsigned short wIndex) | |
1181 | { | |
1182 | switch (wValue) { | |
1183 | case (RH_PORT_ENABLE): | |
1184 | USB_RH_PRINTF("Root-Hub: Enable Port %d\n", wIndex); | |
1185 | break; | |
1186 | case (RH_PORT_SUSPEND): | |
1187 | USB_RH_PRINTF("Root-Hub: Suspend Port %d\n", wIndex); | |
1188 | break; | |
1189 | case (RH_PORT_POWER): | |
1190 | USB_RH_PRINTF("Root-Hub: Port Power %d\n", wIndex); | |
1191 | break; | |
1192 | case (RH_C_PORT_CONNECTION): | |
1193 | USB_RH_PRINTF("Root-Hub: C Port Connection Port %d\n", wIndex); | |
1194 | break; | |
1195 | case (RH_C_PORT_ENABLE): | |
1196 | USB_RH_PRINTF("Root-Hub: C Port Enable Port %d\n", wIndex); | |
1197 | break; | |
1198 | case (RH_C_PORT_SUSPEND): | |
1199 | USB_RH_PRINTF("Root-Hub: C Port Suspend Port %d\n", wIndex); | |
1200 | break; | |
1201 | case (RH_C_PORT_OVER_CURRENT): | |
1202 | USB_RH_PRINTF("Root-Hub: C Port Over Current Port %d\n", | |
1203 | wIndex); | |
1204 | break; | |
1205 | case (RH_C_PORT_RESET): | |
1206 | USB_RH_PRINTF("Root-Hub: C Port reset Port %d\n", wIndex); | |
1207 | break; | |
1208 | default: | |
1209 | USB_RH_PRINTF("Root-Hub: unknown %x %x\n", wValue, wIndex); | |
1210 | break; | |
1211 | } | |
1212 | } | |
1213 | ||
1214 | #endif | |
1215 | ||
1216 | /*#ifdef USB_UHCI_DEBUG*/ | |
1217 | ||
1218 | static int usb_display_td(uhci_td_t * td) | |
1219 | { | |
1220 | unsigned long tmp; | |
1221 | int valid; | |
1222 | ||
1223 | printf("TD at %p:\n", td); | |
1224 | ||
1225 | tmp = swap_32(READ32(&td->link)); | |
1226 | printf("Link points to 0x%08lX, %s first, %s, %s\n", tmp & 0xfffffff0, | |
1227 | ((tmp & 0x4) == 0x4) ? "Depth" : "Breath", | |
1228 | ((tmp & 0x2) == 0x2) ? "QH" : "TD", | |
1229 | ((tmp & 0x1) == 0x1) ? "invalid" : "valid"); | |
1230 | valid = ((tmp & 0x1) == 0x0); | |
1231 | tmp = swap_32(READ32(&td->status)); | |
1232 | printf | |
1233 | (" %s %ld Errors %s %s %s \n %s %s %s %s %s %s\n Len 0x%lX\n", | |
1234 | (((tmp >> 29) & 0x1) == 0x1) ? "SPD Enable" : "SPD Disable", | |
1235 | ((tmp >> 28) & 0x3), | |
1236 | (((tmp >> 26) & 0x1) == 0x1) ? "Low Speed" : "Full Speed", | |
1237 | (((tmp >> 25) & 0x1) == 0x1) ? "ISO " : "", | |
1238 | (((tmp >> 24) & 0x1) == 0x1) ? "IOC " : "", | |
1239 | (((tmp >> 23) & 0x1) == 0x1) ? "Active " : "Inactive ", | |
1240 | (((tmp >> 22) & 0x1) == 0x1) ? "Stalled" : "", | |
1241 | (((tmp >> 21) & 0x1) == 0x1) ? "Data Buffer Error" : "", | |
1242 | (((tmp >> 20) & 0x1) == 0x1) ? "Babble" : "", | |
1243 | (((tmp >> 19) & 0x1) == 0x1) ? "NAK" : "", | |
1244 | (((tmp >> 18) & 0x1) == 0x1) ? "Bitstuff Error" : "", | |
1245 | (tmp & 0x7ff)); | |
1246 | tmp = swap_32(READ32(&td->info)); | |
1247 | printf(" MaxLen 0x%lX\n", ((tmp >> 21) & 0x7FF)); | |
1248 | printf(" %sEndpoint 0x%lX Dev Addr 0x%lX PID 0x%lX\n", | |
1249 | ((tmp >> 19) & 0x1) == 0x1 ? "TOGGLE " : "", ((tmp >> 15) & 0xF), | |
1250 | ((tmp >> 8) & 0x7F), tmp & 0xFF); | |
1251 | tmp = swap_32(READ32(&td->buffer)); | |
1252 | printf(" Buffer 0x%08lX\n", tmp); | |
1253 | printf(" DEV %08lX\n", td->dev_ptr); | |
1254 | return valid; | |
1255 | } | |
1256 | ||
1257 | void usb_show_td(int max) | |
1258 | { | |
1259 | int i; | |
1260 | if (max > 0) { | |
1261 | for (i = 0; i < max; i++) { | |
1262 | usb_display_td(&tmp_td[i]); | |
1263 | } | |
1264 | } else { | |
1265 | i = 0; | |
1266 | do { | |
1267 | printf("tmp_td[%d]\n", i); | |
1268 | } while (usb_display_td(&tmp_td[i++])); | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | void grusb_show_regs(void) | |
1273 | { | |
1274 | unsigned int tmp; | |
1275 | ||
1276 | tmp = in16r(usb_base_addr + USBCMD); | |
1277 | printf(" USBCMD: 0x%04x\n", tmp); | |
1278 | tmp = in16r(usb_base_addr + USBSTS); | |
1279 | printf(" USBSTS: 0x%04x\n", tmp); | |
1280 | tmp = in16r(usb_base_addr + USBINTR); | |
1281 | printf(" USBINTR: 0x%04x\n", tmp); | |
1282 | tmp = in16r(usb_base_addr + USBFRNUM); | |
1283 | printf(" FRNUM: 0x%04x\n", tmp); | |
1284 | tmp = in32r(usb_base_addr + USBFLBASEADD); | |
1285 | printf(" FLBASEADD: 0x%08x\n", tmp); | |
1286 | tmp = in16r(usb_base_addr + USBSOF); | |
1287 | printf(" SOFMOD: 0x%04x\n", tmp); | |
1288 | tmp = in16r(usb_base_addr + USBPORTSC1); | |
1289 | printf(" PORTSC1: 0x%04x\n", tmp); | |
1290 | } | |
1291 | ||
1292 | /*#endif*/ | |
1293 | #endif /* CONFIG_USB_UHCI */ | |
1294 | ||
1295 | /* EOF */ |