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Merge branch 'master' of git://git.denx.de/u-boot-i2c
[people/ms/u-boot.git] / drivers / usb / host / r8a66597-hcd.c
1 /*
2 * R8A66597 HCD (Host Controller Driver) for u-boot
3 *
4 * Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 */
20
21 #include <common.h>
22 #include <usb.h>
23 #include <asm/io.h>
24
25 #include "r8a66597.h"
26
27 #ifdef R8A66597_DEBUG
28 #define R8A66597_DPRINT printf
29 #else
30 #define R8A66597_DPRINT(...)
31 #endif
32
33 static const char hcd_name[] = "r8a66597_hcd";
34 static struct r8a66597 gr8a66597;
35
36 static void get_hub_data(struct usb_device *dev, u16 *hub_devnum, u16 *hubport)
37 {
38 int i;
39
40 *hub_devnum = 0;
41 *hubport = 0;
42
43 /* check a device connected to root_hub */
44 if ((dev->parent && dev->parent->devnum == 1) ||
45 (dev->devnum == 1))
46 return;
47
48 for (i = 0; i < USB_MAXCHILDREN; i++) {
49 if (dev->parent->children[i] == dev) {
50 *hub_devnum = (u8)dev->parent->devnum;
51 *hubport = i;
52 return;
53 }
54 }
55
56 printf("get_hub_data error.\n");
57 }
58
59 static void set_devadd(struct r8a66597 *r8a66597, u8 r8a66597_address,
60 struct usb_device *dev, int port)
61 {
62 u16 val, usbspd, upphub, hubport;
63 unsigned long devadd_reg = get_devadd_addr(r8a66597_address);
64
65 get_hub_data(dev, &upphub, &hubport);
66 usbspd = r8a66597->speed;
67 val = (upphub << 11) | (hubport << 8) | (usbspd << 6) | (port & 0x0001);
68 r8a66597_write(r8a66597, val, devadd_reg);
69 }
70
71 static int r8a66597_clock_enable(struct r8a66597 *r8a66597)
72 {
73 u16 tmp;
74 int i = 0;
75
76 #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
77 do {
78 r8a66597_write(r8a66597, SCKE, SYSCFG0);
79 tmp = r8a66597_read(r8a66597, SYSCFG0);
80 if (i++ > 1000) {
81 printf("register access fail.\n");
82 return -1;
83 }
84 } while ((tmp & SCKE) != SCKE);
85 r8a66597_write(r8a66597, 0x04, 0x02);
86 #else
87 do {
88 r8a66597_write(r8a66597, USBE, SYSCFG0);
89 tmp = r8a66597_read(r8a66597, SYSCFG0);
90 if (i++ > 1000) {
91 printf("register access fail.\n");
92 return -1;
93 }
94 } while ((tmp & USBE) != USBE);
95 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
96 r8a66597_mdfy(r8a66597, CONFIG_R8A66597_XTAL, XTAL, SYSCFG0);
97
98 i = 0;
99 r8a66597_bset(r8a66597, XCKE, SYSCFG0);
100 do {
101 udelay(1000);
102 tmp = r8a66597_read(r8a66597, SYSCFG0);
103 if (i++ > 500) {
104 printf("register access fail.\n");
105 return -1;
106 }
107 } while ((tmp & SCKE) != SCKE);
108 #endif /* #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) */
109
110 return 0;
111 }
112
113 static void r8a66597_clock_disable(struct r8a66597 *r8a66597)
114 {
115 r8a66597_bclr(r8a66597, SCKE, SYSCFG0);
116 udelay(1);
117 #if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597)
118 r8a66597_bclr(r8a66597, PLLC, SYSCFG0);
119 r8a66597_bclr(r8a66597, XCKE, SYSCFG0);
120 r8a66597_bclr(r8a66597, USBE, SYSCFG0);
121 #endif
122 }
123
124 static void r8a66597_enable_port(struct r8a66597 *r8a66597, int port)
125 {
126 u16 val;
127
128 val = port ? DRPD : DCFM | DRPD;
129 r8a66597_bset(r8a66597, val, get_syscfg_reg(port));
130 r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port));
131
132 r8a66597_write(r8a66597, BURST | CPU_ADR_RD_WR, get_dmacfg_reg(port));
133 }
134
135 static void r8a66597_disable_port(struct r8a66597 *r8a66597, int port)
136 {
137 u16 val, tmp;
138
139 r8a66597_write(r8a66597, 0, get_intenb_reg(port));
140 r8a66597_write(r8a66597, 0, get_intsts_reg(port));
141
142 r8a66597_port_power(r8a66597, port, 0);
143
144 do {
145 tmp = r8a66597_read(r8a66597, SOFCFG) & EDGESTS;
146 udelay(640);
147 } while (tmp == EDGESTS);
148
149 val = port ? DRPD : DCFM | DRPD;
150 r8a66597_bclr(r8a66597, val, get_syscfg_reg(port));
151 r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port));
152 }
153
154 static int enable_controller(struct r8a66597 *r8a66597)
155 {
156 int ret, port;
157
158 ret = r8a66597_clock_enable(r8a66597);
159 if (ret < 0)
160 return ret;
161
162 r8a66597_bset(r8a66597, CONFIG_R8A66597_LDRV & LDRV, PINCFG);
163 r8a66597_bset(r8a66597, USBE, SYSCFG0);
164
165 r8a66597_bset(r8a66597, INTL, SOFCFG);
166 r8a66597_write(r8a66597, 0, INTENB0);
167 r8a66597_write(r8a66597, 0, INTENB1);
168 r8a66597_write(r8a66597, 0, INTENB2);
169
170 r8a66597_bset(r8a66597, CONFIG_R8A66597_ENDIAN & BIGEND, CFIFOSEL);
171 r8a66597_bset(r8a66597, CONFIG_R8A66597_ENDIAN & BIGEND, D0FIFOSEL);
172 r8a66597_bset(r8a66597, CONFIG_R8A66597_ENDIAN & BIGEND, D1FIFOSEL);
173 r8a66597_bset(r8a66597, TRNENSEL, SOFCFG);
174
175 for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++)
176 r8a66597_enable_port(r8a66597, port);
177
178 return 0;
179 }
180
181 static void disable_controller(struct r8a66597 *r8a66597)
182 {
183 int i;
184
185 if (!(r8a66597_read(r8a66597, SYSCFG0) & USBE))
186 return;
187
188 r8a66597_write(r8a66597, 0, INTENB0);
189 r8a66597_write(r8a66597, 0, INTSTS0);
190
191 r8a66597_write(r8a66597, 0, D0FIFOSEL);
192 r8a66597_write(r8a66597, 0, D1FIFOSEL);
193 r8a66597_write(r8a66597, 0, DCPCFG);
194 r8a66597_write(r8a66597, 0x40, DCPMAXP);
195 r8a66597_write(r8a66597, 0, DCPCTR);
196
197 for (i = 0; i <= 10; i++)
198 r8a66597_write(r8a66597, 0, get_devadd_addr(i));
199 for (i = 1; i <= 5; i++) {
200 r8a66597_write(r8a66597, 0, get_pipetre_addr(i));
201 r8a66597_write(r8a66597, 0, get_pipetrn_addr(i));
202 }
203 for (i = 1; i < R8A66597_MAX_NUM_PIPE; i++) {
204 r8a66597_write(r8a66597, 0, get_pipectr_addr(i));
205 r8a66597_write(r8a66597, i, PIPESEL);
206 r8a66597_write(r8a66597, 0, PIPECFG);
207 r8a66597_write(r8a66597, 0, PIPEBUF);
208 r8a66597_write(r8a66597, 0, PIPEMAXP);
209 r8a66597_write(r8a66597, 0, PIPEPERI);
210 }
211
212 for (i = 0; i < R8A66597_MAX_ROOT_HUB; i++)
213 r8a66597_disable_port(r8a66597, i);
214
215 r8a66597_clock_disable(r8a66597);
216 }
217
218 static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg,
219 u16 mask, u16 loop)
220 {
221 u16 tmp;
222 int i = 0;
223
224 do {
225 tmp = r8a66597_read(r8a66597, reg);
226 if (i++ > 1000000) {
227 printf("register%lx, loop %x is timeout\n", reg, loop);
228 break;
229 }
230 } while ((tmp & mask) != loop);
231 }
232
233 static void pipe_buffer_setting(struct r8a66597 *r8a66597,
234 struct usb_device *dev, unsigned long pipe)
235 {
236 u16 val = 0;
237 u16 pipenum, bufnum, maxpacket;
238
239 if (usb_pipein(pipe)) {
240 pipenum = BULK_IN_PIPENUM;
241 bufnum = BULK_IN_BUFNUM;
242 maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)];
243 } else {
244 pipenum = BULK_OUT_PIPENUM;
245 bufnum = BULK_OUT_BUFNUM;
246 maxpacket = dev->epmaxpacketout[usb_pipeendpoint(pipe)];
247 }
248
249 if (r8a66597->pipe_config & (1 << pipenum))
250 return;
251 r8a66597->pipe_config |= (1 << pipenum);
252
253 r8a66597_bset(r8a66597, ACLRM, get_pipectr_addr(pipenum));
254 r8a66597_bclr(r8a66597, ACLRM, get_pipectr_addr(pipenum));
255 r8a66597_write(r8a66597, pipenum, PIPESEL);
256
257 /* FIXME: This driver support bulk transfer only. */
258 if (!usb_pipein(pipe))
259 val |= R8A66597_DIR;
260 else
261 val |= R8A66597_SHTNAK;
262 val |= R8A66597_BULK | R8A66597_DBLB | usb_pipeendpoint(pipe);
263 r8a66597_write(r8a66597, val, PIPECFG);
264
265 r8a66597_write(r8a66597, (8 << 10) | bufnum, PIPEBUF);
266 r8a66597_write(r8a66597, make_devsel(usb_pipedevice(pipe)) |
267 maxpacket, PIPEMAXP);
268 r8a66597_write(r8a66597, 0, PIPEPERI);
269 r8a66597_write(r8a66597, SQCLR, get_pipectr_addr(pipenum));
270 }
271
272 static int send_setup_packet(struct r8a66597 *r8a66597, struct usb_device *dev,
273 struct devrequest *setup)
274 {
275 int i;
276 unsigned short *p = (unsigned short *)setup;
277 unsigned long setup_addr = USBREQ;
278 u16 intsts1;
279 int timeout = 3000;
280 u16 devsel = setup->request == USB_REQ_SET_ADDRESS ? 0 : dev->devnum;
281
282 r8a66597_write(r8a66597, make_devsel(devsel) |
283 (8 << dev->maxpacketsize), DCPMAXP);
284 r8a66597_write(r8a66597, ~(SIGN | SACK), INTSTS1);
285
286 for (i = 0; i < 4; i++) {
287 r8a66597_write(r8a66597, le16_to_cpu(p[i]), setup_addr);
288 setup_addr += 2;
289 }
290 r8a66597_write(r8a66597, ~0x0001, BRDYSTS);
291 r8a66597_write(r8a66597, SUREQ, DCPCTR);
292
293 while (1) {
294 intsts1 = r8a66597_read(r8a66597, INTSTS1);
295 if (intsts1 & SACK)
296 break;
297 if (intsts1 & SIGN) {
298 printf("setup packet send error\n");
299 return -1;
300 }
301 if (timeout-- < 0) {
302 printf("setup packet timeout\n");
303 return -1;
304 }
305 udelay(500);
306 }
307
308 return 0;
309 }
310
311 static int send_bulk_packet(struct r8a66597 *r8a66597, struct usb_device *dev,
312 unsigned long pipe, void *buffer, int transfer_len)
313 {
314 u16 tmp, bufsize;
315 u16 *buf;
316 size_t size;
317
318 R8A66597_DPRINT("%s\n", __func__);
319
320 r8a66597_mdfy(r8a66597, MBW | BULK_OUT_PIPENUM,
321 MBW | CURPIPE, CFIFOSEL);
322 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, BULK_OUT_PIPENUM);
323 tmp = r8a66597_read(r8a66597, CFIFOCTR);
324 if ((tmp & FRDY) == 0) {
325 printf("%s FRDY is not set (%x)\n", __func__, tmp);
326 return -1;
327 }
328
329 /* prepare parameters */
330 bufsize = dev->epmaxpacketout[usb_pipeendpoint(pipe)];
331 buf = (u16 *)(buffer + dev->act_len);
332 size = min((int)bufsize, transfer_len - dev->act_len);
333
334 /* write fifo */
335 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS);
336 if (buffer) {
337 r8a66597_write_fifo(r8a66597, CFIFO, buf, size);
338 r8a66597_write(r8a66597, BVAL, CFIFOCTR);
339 }
340
341 /* update parameters */
342 dev->act_len += size;
343
344 r8a66597_mdfy(r8a66597, PID_BUF, PID,
345 get_pipectr_addr(BULK_OUT_PIPENUM));
346
347 while (!(r8a66597_read(r8a66597, BEMPSTS) & (1 << BULK_OUT_PIPENUM)))
348 if (ctrlc())
349 return -1;
350 r8a66597_write(r8a66597, ~(1 << BULK_OUT_PIPENUM), BEMPSTS);
351
352 if (dev->act_len >= transfer_len)
353 r8a66597_mdfy(r8a66597, PID_NAK, PID,
354 get_pipectr_addr(BULK_OUT_PIPENUM));
355
356 return 0;
357 }
358
359 static int receive_bulk_packet(struct r8a66597 *r8a66597,
360 struct usb_device *dev,
361 unsigned long pipe,
362 void *buffer, int transfer_len)
363 {
364 u16 tmp;
365 u16 *buf;
366 const u16 pipenum = BULK_IN_PIPENUM;
367 int rcv_len;
368 int maxpacket = dev->epmaxpacketin[usb_pipeendpoint(pipe)];
369
370 R8A66597_DPRINT("%s\n", __func__);
371
372 /* prepare */
373 if (dev->act_len == 0) {
374 r8a66597_mdfy(r8a66597, PID_NAK, PID,
375 get_pipectr_addr(pipenum));
376 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS);
377
378 r8a66597_write(r8a66597, TRCLR, get_pipetre_addr(pipenum));
379 r8a66597_write(r8a66597,
380 (transfer_len + maxpacket - 1) / maxpacket,
381 get_pipetrn_addr(pipenum));
382 r8a66597_bset(r8a66597, TRENB, get_pipetre_addr(pipenum));
383
384 r8a66597_mdfy(r8a66597, PID_BUF, PID,
385 get_pipectr_addr(pipenum));
386 }
387
388 r8a66597_mdfy(r8a66597, MBW | pipenum, MBW | CURPIPE, CFIFOSEL);
389 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, pipenum);
390
391 while (!(r8a66597_read(r8a66597, BRDYSTS) & (1 << pipenum)))
392 if (ctrlc())
393 return -1;
394 r8a66597_write(r8a66597, ~(1 << pipenum), BRDYSTS);
395
396 tmp = r8a66597_read(r8a66597, CFIFOCTR);
397 if ((tmp & FRDY) == 0) {
398 printf("%s FRDY is not set. (%x)\n", __func__, tmp);
399 return -1;
400 }
401
402 buf = (u16 *)(buffer + dev->act_len);
403 rcv_len = tmp & DTLN;
404 dev->act_len += rcv_len;
405
406 if (buffer) {
407 if (rcv_len == 0)
408 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
409 else
410 r8a66597_read_fifo(r8a66597, CFIFO, buf, rcv_len);
411 }
412
413 return 0;
414 }
415
416 static int receive_control_packet(struct r8a66597 *r8a66597,
417 struct usb_device *dev,
418 void *buffer, int transfer_len)
419 {
420 u16 tmp;
421 int rcv_len;
422
423 /* FIXME: limit transfer size : 64byte or less */
424
425 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
426 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
427 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
428 r8a66597_bset(r8a66597, SQSET, DCPCTR);
429 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
430 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR);
431
432 while (!(r8a66597_read(r8a66597, BRDYSTS) & 0x0001))
433 if (ctrlc())
434 return -1;
435 r8a66597_write(r8a66597, ~0x0001, BRDYSTS);
436
437 r8a66597_mdfy(r8a66597, MBW, MBW | CURPIPE, CFIFOSEL);
438 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
439
440 tmp = r8a66597_read(r8a66597, CFIFOCTR);
441 if ((tmp & FRDY) == 0) {
442 printf("%s FRDY is not set. (%x)\n", __func__, tmp);
443 return -1;
444 }
445
446 rcv_len = tmp & DTLN;
447 dev->act_len += rcv_len;
448
449 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR);
450
451 if (buffer) {
452 if (rcv_len == 0)
453 r8a66597_write(r8a66597, BCLR, DCPCTR);
454 else
455 r8a66597_read_fifo(r8a66597, CFIFO, buffer, rcv_len);
456 }
457
458 return 0;
459 }
460
461 static int send_status_packet(struct r8a66597 *r8a66597,
462 unsigned long pipe)
463 {
464 r8a66597_bset(r8a66597, SQSET, DCPCTR);
465 r8a66597_mdfy(r8a66597, PID_NAK, PID, DCPCTR);
466
467 if (usb_pipein(pipe)) {
468 r8a66597_bset(r8a66597, R8A66597_DIR, DCPCFG);
469 r8a66597_mdfy(r8a66597, ISEL, ISEL | CURPIPE, CFIFOSEL);
470 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
471 r8a66597_write(r8a66597, ~BEMP0, BEMPSTS);
472 r8a66597_write(r8a66597, BCLR | BVAL, CFIFOCTR);
473 } else {
474 r8a66597_bclr(r8a66597, R8A66597_DIR, DCPCFG);
475 r8a66597_mdfy(r8a66597, 0, ISEL | CURPIPE, CFIFOSEL);
476 r8a66597_reg_wait(r8a66597, CFIFOSEL, CURPIPE, 0);
477 r8a66597_write(r8a66597, BCLR, CFIFOCTR);
478 }
479 r8a66597_mdfy(r8a66597, PID_BUF, PID, DCPCTR);
480
481 while (!(r8a66597_read(r8a66597, BEMPSTS) & 0x0001))
482 if (ctrlc())
483 return -1;
484
485 return 0;
486 }
487
488 static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port)
489 {
490 int count = R8A66597_MAX_SAMPLING;
491 unsigned short syssts, old_syssts;
492
493 R8A66597_DPRINT("%s\n", __func__);
494
495 old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST);
496 while (count > 0) {
497 mdelay(R8A66597_RH_POLL_TIME);
498
499 syssts = r8a66597_read(r8a66597, get_syssts_reg(port) & LNST);
500 if (syssts == old_syssts) {
501 count--;
502 } else {
503 count = R8A66597_MAX_SAMPLING;
504 old_syssts = syssts;
505 }
506 }
507 }
508
509 static void r8a66597_bus_reset(struct r8a66597 *r8a66597, int port)
510 {
511 mdelay(10);
512 r8a66597_mdfy(r8a66597, USBRST, USBRST | UACT, get_dvstctr_reg(port));
513 mdelay(50);
514 r8a66597_mdfy(r8a66597, UACT, USBRST | UACT, get_dvstctr_reg(port));
515 mdelay(50);
516 }
517
518 static int check_usb_device_connecting(struct r8a66597 *r8a66597)
519 {
520 int timeout = 10000; /* 100usec * 10000 = 1sec */
521 int i;
522
523 for (i = 0; i < 5; i++) {
524 /* check a usb cable connect */
525 while (!(r8a66597_read(r8a66597, INTSTS1) & ATTCH)) {
526 if (timeout-- < 0) {
527 printf("%s timeout.\n", __func__);
528 return -1;
529 }
530 udelay(100);
531 }
532
533 /* check a data line */
534 r8a66597_check_syssts(r8a66597, 0);
535
536 r8a66597_bus_reset(r8a66597, 0);
537 r8a66597->speed = get_rh_usb_speed(r8a66597, 0);
538
539 if (!(r8a66597_read(r8a66597, INTSTS1) & DTCH)) {
540 r8a66597->port_change = USB_PORT_STAT_C_CONNECTION;
541 r8a66597->port_status = USB_PORT_STAT_CONNECTION |
542 USB_PORT_STAT_ENABLE;
543 return 0; /* success */
544 }
545
546 R8A66597_DPRINT("USB device has detached. retry = %d\n", i);
547 r8a66597_write(r8a66597, ~DTCH, INTSTS1);
548 }
549
550 return -1; /* fail */
551 }
552
553 /* based on usb_ohci.c */
554 #define min_t(type, x, y) \
555 ({ type __x = (x); type __y = (y); __x < __y ? __x : __y; })
556 /*-------------------------------------------------------------------------*
557 * Virtual Root Hub
558 *-------------------------------------------------------------------------*/
559
560 /* Device descriptor */
561 static __u8 root_hub_dev_des[] =
562 {
563 0x12, /* __u8 bLength; */
564 0x01, /* __u8 bDescriptorType; Device */
565 0x10, /* __u16 bcdUSB; v1.1 */
566 0x01,
567 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
568 0x00, /* __u8 bDeviceSubClass; */
569 0x00, /* __u8 bDeviceProtocol; */
570 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
571 0x00, /* __u16 idVendor; */
572 0x00,
573 0x00, /* __u16 idProduct; */
574 0x00,
575 0x00, /* __u16 bcdDevice; */
576 0x00,
577 0x00, /* __u8 iManufacturer; */
578 0x01, /* __u8 iProduct; */
579 0x00, /* __u8 iSerialNumber; */
580 0x01 /* __u8 bNumConfigurations; */
581 };
582
583 /* Configuration descriptor */
584 static __u8 root_hub_config_des[] =
585 {
586 0x09, /* __u8 bLength; */
587 0x02, /* __u8 bDescriptorType; Configuration */
588 0x19, /* __u16 wTotalLength; */
589 0x00,
590 0x01, /* __u8 bNumInterfaces; */
591 0x01, /* __u8 bConfigurationValue; */
592 0x00, /* __u8 iConfiguration; */
593 0x40, /* __u8 bmAttributes; */
594
595 0x00, /* __u8 MaxPower; */
596
597 /* interface */
598 0x09, /* __u8 if_bLength; */
599 0x04, /* __u8 if_bDescriptorType; Interface */
600 0x00, /* __u8 if_bInterfaceNumber; */
601 0x00, /* __u8 if_bAlternateSetting; */
602 0x01, /* __u8 if_bNumEndpoints; */
603 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
604 0x00, /* __u8 if_bInterfaceSubClass; */
605 0x00, /* __u8 if_bInterfaceProtocol; */
606 0x00, /* __u8 if_iInterface; */
607
608 /* endpoint */
609 0x07, /* __u8 ep_bLength; */
610 0x05, /* __u8 ep_bDescriptorType; Endpoint */
611 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
612 0x03, /* __u8 ep_bmAttributes; Interrupt */
613 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */
614 0x00,
615 0xff /* __u8 ep_bInterval; 255 ms */
616 };
617
618 static unsigned char root_hub_str_index0[] =
619 {
620 0x04, /* __u8 bLength; */
621 0x03, /* __u8 bDescriptorType; String-descriptor */
622 0x09, /* __u8 lang ID */
623 0x04, /* __u8 lang ID */
624 };
625
626 static unsigned char root_hub_str_index1[] =
627 {
628 34, /* __u8 bLength; */
629 0x03, /* __u8 bDescriptorType; String-descriptor */
630 'R', /* __u8 Unicode */
631 0, /* __u8 Unicode */
632 '8', /* __u8 Unicode */
633 0, /* __u8 Unicode */
634 'A', /* __u8 Unicode */
635 0, /* __u8 Unicode */
636 '6', /* __u8 Unicode */
637 0, /* __u8 Unicode */
638 '6', /* __u8 Unicode */
639 0, /* __u8 Unicode */
640 '5', /* __u8 Unicode */
641 0, /* __u8 Unicode */
642 '9', /* __u8 Unicode */
643 0, /* __u8 Unicode */
644 '7', /* __u8 Unicode */
645 0, /* __u8 Unicode */
646 ' ', /* __u8 Unicode */
647 0, /* __u8 Unicode */
648 'R', /* __u8 Unicode */
649 0, /* __u8 Unicode */
650 'o', /* __u8 Unicode */
651 0, /* __u8 Unicode */
652 'o', /* __u8 Unicode */
653 0, /* __u8 Unicode */
654 't', /* __u8 Unicode */
655 0, /* __u8 Unicode */
656 'H', /* __u8 Unicode */
657 0, /* __u8 Unicode */
658 'u', /* __u8 Unicode */
659 0, /* __u8 Unicode */
660 'b', /* __u8 Unicode */
661 0, /* __u8 Unicode */
662 };
663
664 static int r8a66597_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
665 void *buffer, int transfer_len, struct devrequest *cmd)
666 {
667 struct r8a66597 *r8a66597 = &gr8a66597;
668 int leni = transfer_len;
669 int len = 0;
670 int stat = 0;
671 __u16 bmRType_bReq;
672 __u16 wValue;
673 __u16 wLength;
674 unsigned char data[32];
675
676 R8A66597_DPRINT("%s\n", __func__);
677
678 if (usb_pipeint(pipe)) {
679 printf("Root-Hub submit IRQ: NOT implemented");
680 return 0;
681 }
682
683 bmRType_bReq = cmd->requesttype | (cmd->request << 8);
684 wValue = cpu_to_le16 (cmd->value);
685 wLength = cpu_to_le16 (cmd->length);
686
687 switch (bmRType_bReq) {
688 case RH_GET_STATUS:
689 *(__u16 *)buffer = cpu_to_le16(1);
690 len = 2;
691 break;
692 case RH_GET_STATUS | RH_INTERFACE:
693 *(__u16 *)buffer = cpu_to_le16(0);
694 len = 2;
695 break;
696 case RH_GET_STATUS | RH_ENDPOINT:
697 *(__u16 *)buffer = cpu_to_le16(0);
698 len = 2;
699 break;
700 case RH_GET_STATUS | RH_CLASS:
701 *(__u32 *)buffer = cpu_to_le32(0);
702 len = 4;
703 break;
704 case RH_GET_STATUS | RH_OTHER | RH_CLASS:
705 *(__u32 *)buffer = cpu_to_le32(r8a66597->port_status |
706 (r8a66597->port_change << 16));
707 len = 4;
708 break;
709 case RH_CLEAR_FEATURE | RH_ENDPOINT:
710 case RH_CLEAR_FEATURE | RH_CLASS:
711 break;
712
713 case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
714 switch (wValue) {
715 case RH_C_PORT_CONNECTION:
716 r8a66597->port_change &= ~USB_PORT_STAT_C_CONNECTION;
717 break;
718 }
719 break;
720
721 case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
722 switch (wValue) {
723 case (RH_PORT_SUSPEND):
724 break;
725 case (RH_PORT_RESET):
726 r8a66597_bus_reset(r8a66597, 0);
727 break;
728 case (RH_PORT_POWER):
729 break;
730 case (RH_PORT_ENABLE):
731 break;
732 }
733 break;
734 case RH_SET_ADDRESS:
735 gr8a66597.rh_devnum = wValue;
736 break;
737 case RH_GET_DESCRIPTOR:
738 switch ((wValue & 0xff00) >> 8) {
739 case (0x01): /* device descriptor */
740 len = min_t(unsigned int,
741 leni,
742 min_t(unsigned int,
743 sizeof(root_hub_dev_des),
744 wLength));
745 memcpy(buffer, root_hub_dev_des, len);
746 break;
747 case (0x02): /* configuration descriptor */
748 len = min_t(unsigned int,
749 leni,
750 min_t(unsigned int,
751 sizeof(root_hub_config_des),
752 wLength));
753 memcpy(buffer, root_hub_config_des, len);
754 break;
755 case (0x03): /* string descriptors */
756 if (wValue == 0x0300) {
757 len = min_t(unsigned int,
758 leni,
759 min_t(unsigned int,
760 sizeof(root_hub_str_index0),
761 wLength));
762 memcpy(buffer, root_hub_str_index0, len);
763 }
764 if (wValue == 0x0301) {
765 len = min_t(unsigned int,
766 leni,
767 min_t(unsigned int,
768 sizeof(root_hub_str_index1),
769 wLength));
770 memcpy(buffer, root_hub_str_index1, len);
771 }
772 break;
773 default:
774 stat = USB_ST_STALLED;
775 }
776 break;
777
778 case RH_GET_DESCRIPTOR | RH_CLASS:
779 {
780 __u32 temp = 0x00000001;
781
782 data[0] = 9; /* min length; */
783 data[1] = 0x29;
784 data[2] = temp & RH_A_NDP;
785 data[3] = 0;
786 if (temp & RH_A_PSM)
787 data[3] |= 0x1;
788 if (temp & RH_A_NOCP)
789 data[3] |= 0x10;
790 else if (temp & RH_A_OCPM)
791 data[3] |= 0x8;
792
793 /* corresponds to data[4-7] */
794 data[5] = (temp & RH_A_POTPGT) >> 24;
795 data[7] = temp & RH_B_DR;
796 if (data[2] < 7) {
797 data[8] = 0xff;
798 } else {
799 data[0] += 2;
800 data[8] = (temp & RH_B_DR) >> 8;
801 data[10] = data[9] = 0xff;
802 }
803
804 len = min_t(unsigned int, leni,
805 min_t(unsigned int, data[0], wLength));
806 memcpy(buffer, data, len);
807 break;
808 }
809
810 case RH_GET_CONFIGURATION:
811 *(__u8 *) buffer = 0x01;
812 len = 1;
813 break;
814 case RH_SET_CONFIGURATION:
815 break;
816 default:
817 R8A66597_DPRINT("unsupported root hub command");
818 stat = USB_ST_STALLED;
819 }
820
821 mdelay(1);
822
823 len = min_t(int, len, leni);
824
825 dev->act_len = len;
826 dev->status = stat;
827
828 return stat;
829 }
830
831 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
832 int transfer_len)
833 {
834 struct r8a66597 *r8a66597 = &gr8a66597;
835 int ret = 0;
836
837 R8A66597_DPRINT("%s\n", __func__);
838 R8A66597_DPRINT("pipe = %08x, buffer = %p, len = %d, devnum = %d\n",
839 pipe, buffer, transfer_len, dev->devnum);
840
841 set_devadd(r8a66597, dev->devnum, dev, 0);
842
843 pipe_buffer_setting(r8a66597, dev, pipe);
844
845 dev->act_len = 0;
846 while (dev->act_len < transfer_len && ret == 0) {
847 if (ctrlc())
848 return -1;
849
850 if (usb_pipein(pipe))
851 ret = receive_bulk_packet(r8a66597, dev, pipe, buffer,
852 transfer_len);
853 else
854 ret = send_bulk_packet(r8a66597, dev, pipe, buffer,
855 transfer_len);
856 }
857
858 if (ret == 0)
859 dev->status = 0;
860
861 return ret;
862 }
863
864 int submit_control_msg(struct usb_device *dev, unsigned long pipe,
865 void *buffer, int transfer_len, struct devrequest *setup)
866 {
867 struct r8a66597 *r8a66597 = &gr8a66597;
868 u16 r8a66597_address = setup->request == USB_REQ_SET_ADDRESS ?
869 0 : dev->devnum;
870
871 R8A66597_DPRINT("%s\n", __func__);
872 if (usb_pipedevice(pipe) == r8a66597->rh_devnum)
873 return r8a66597_submit_rh_msg(dev, pipe, buffer, transfer_len,
874 setup);
875
876 R8A66597_DPRINT("%s: setup\n", __func__);
877 set_devadd(r8a66597, r8a66597_address, dev, 0);
878
879 if (send_setup_packet(r8a66597, dev, setup) < 0) {
880 printf("setup packet send error\n");
881 return -1;
882 }
883
884 dev->act_len = 0;
885 if (usb_pipein(pipe))
886 if (receive_control_packet(r8a66597, dev, buffer,
887 transfer_len) < 0)
888 return -1;
889
890 if (send_status_packet(r8a66597, pipe) < 0)
891 return -1;
892
893 dev->status = 0;
894
895 return 0;
896 }
897
898 int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
899 int transfer_len, int interval)
900 {
901 /* no implement */
902 R8A66597_DPRINT("%s\n", __func__);
903 return 0;
904 }
905
906 int usb_lowlevel_init(int index, void **controller)
907 {
908 struct r8a66597 *r8a66597 = &gr8a66597;
909
910 R8A66597_DPRINT("%s\n", __func__);
911
912 memset(r8a66597, 0, sizeof(r8a66597));
913 r8a66597->reg = CONFIG_R8A66597_BASE_ADDR;
914
915 disable_controller(r8a66597);
916 mdelay(100);
917
918 enable_controller(r8a66597);
919 r8a66597_port_power(r8a66597, 0 , 1);
920
921 /* check usb device */
922 check_usb_device_connecting(r8a66597);
923
924 mdelay(50);
925
926 return 0;
927 }
928
929 int usb_lowlevel_stop(int index)
930 {
931 disable_controller(&gr8a66597);
932
933 return 0;
934 }
"Das U-Boot" Source Tree