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Stefan Roesec157d8e2005-08-01 16:41:48 +02001/*
Stefan Roese7770ce42005-08-02 10:05:21 +02002 * URB OHCI HCD (Host Controller Driver) for USB on the PPC440EP.
Stefan Roesec157d8e2005-08-01 16:41:48 +02003 *
4 * (C) Copyright 2003-2004
Detlev Zundel792a09e2009-05-13 10:54:10 +02005 * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
Stefan Roesec157d8e2005-08-01 16:41:48 +02006 *
7 * (C) Copyright 2004
8 * Pierre Aubert, Staubli Faverges <p.aubert@staubli.com>
9 *
10 * Note: Much of this code has been derived from Linux 2.4
11 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
12 * (C) Copyright 2000-2002 David Brownell
13 *
Wolfgang Denk1a459662013-07-08 09:37:19 +020014 * SPDX-License-Identifier: GPL-2.0+
Stefan Roesec157d8e2005-08-01 16:41:48 +020015 */
16/*
17 * IMPORTANT NOTES
18 * 1 - this driver is intended for use with USB Mass Storage Devices
19 * (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes!
20 */
21
22#include <common.h>
23
24#ifdef CONFIG_USB_OHCI
25
26#include <malloc.h>
27#include <usb.h>
28#include "usb_ohci.h"
Stefan Roese7770ce42005-08-02 10:05:21 +020029
Stefan Roesec157d8e2005-08-01 16:41:48 +020030#define OHCI_USE_NPS /* force NoPowerSwitching mode */
31#undef OHCI_VERBOSE_DEBUG /* not always helpful */
32#undef DEBUG
33#undef SHOW_INFO
34#undef OHCI_FILL_TRACE
35
36/* For initializing controller (mask in an HCFS mode too) */
37#define OHCI_CONTROL_INIT \
38 (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE
39
Wolfgang Denkd00ce092008-04-25 12:44:08 +020040#define readl(a) (*((volatile u32 *)(a)))
41#define writel(a, b) (*((volatile u32 *)(b)) = ((volatile u32)a))
Stefan Roesec157d8e2005-08-01 16:41:48 +020042
43#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
44
45#ifdef DEBUG
46#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg)
47#else
48#define dbg(format, arg...) do {} while(0)
Stefan Roese7770ce42005-08-02 10:05:21 +020049#endif /* DEBUG */
Stefan Roesec157d8e2005-08-01 16:41:48 +020050#define err(format, arg...) printf("ERROR: " format "\n", ## arg)
51#ifdef SHOW_INFO
52#define info(format, arg...) printf("INFO: " format "\n", ## arg)
53#else
54#define info(format, arg...) do {} while(0)
55#endif
56
57#define m16_swap(x) swap_16(x)
58#define m32_swap(x) swap_32(x)
59
Stefan Roesee01bd212007-03-21 13:38:59 +010060#if defined(CONFIG_405EZ) || defined(CONFIG_440EP) || defined(CONFIG_440EPX)
Stefan Roesec157d8e2005-08-01 16:41:48 +020061#define ohci_cpu_to_le16(x) (x)
62#define ohci_cpu_to_le32(x) (x)
63#else
64#define ohci_cpu_to_le16(x) swap_16(x)
65#define ohci_cpu_to_le32(x) swap_32(x)
66#endif
67
68/* global ohci_t */
69static ohci_t gohci;
70/* this must be aligned to a 256 byte boundary */
71struct ohci_hcca ghcca[1];
72/* a pointer to the aligned storage */
73struct ohci_hcca *phcca;
74/* this allocates EDs for all possible endpoints */
75struct ohci_device ohci_dev;
76/* urb_priv */
77urb_priv_t urb_priv;
78/* RHSC flag */
79int got_rhsc;
80/* device which was disconnected */
81struct usb_device *devgone;
Stefan Roese7770ce42005-08-02 10:05:21 +020082/* flag guarding URB transation */
83int urb_finished = 0;
Stefan Roesec157d8e2005-08-01 16:41:48 +020084
85/*-------------------------------------------------------------------------*/
86
87/* AMD-756 (D2 rev) reports corrupt register contents in some cases.
88 * The erratum (#4) description is incorrect. AMD's workaround waits
89 * till some bits (mostly reserved) are clear; ok for all revs.
90 */
91#define OHCI_QUIRK_AMD756 0xabcd
92#define read_roothub(hc, register, mask) ({ \
93 u32 temp = readl (&hc->regs->roothub.register); \
94 if (hc->flags & OHCI_QUIRK_AMD756) \
95 while (temp & mask) \
96 temp = readl (&hc->regs->roothub.register); \
97 temp; })
98
Stefan Roese7770ce42005-08-02 10:05:21 +020099static u32 roothub_a (struct ohci *hc)
100 { return read_roothub (hc, a, 0xfc0fe000); }
101static inline u32 roothub_b (struct ohci *hc)
102 { return readl (&hc->regs->roothub.b); }
103static inline u32 roothub_status (struct ohci *hc)
104 { return readl (&hc->regs->roothub.status); }
105static u32 roothub_portstatus (struct ohci *hc, int i)
106 { return read_roothub (hc, portstatus [i], 0xffe0fce0); }
107
Stefan Roesec157d8e2005-08-01 16:41:48 +0200108
109/* forward declaration */
Stefan Roese7770ce42005-08-02 10:05:21 +0200110static int hc_interrupt (void);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200111static void
Stefan Roese7770ce42005-08-02 10:05:21 +0200112td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer,
113 int transfer_len, struct devrequest * setup, urb_priv_t * urb, int interval);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200114
115/*-------------------------------------------------------------------------*
116 * URB support functions
117 *-------------------------------------------------------------------------*/
118
119/* free HCD-private data associated with this URB */
120
Stefan Roese7770ce42005-08-02 10:05:21 +0200121static void urb_free_priv (urb_priv_t * urb)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200122{
Stefan Roese7770ce42005-08-02 10:05:21 +0200123 int i;
124 int last;
125 struct td * td;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200126
127 last = urb->length - 1;
128 if (last >= 0) {
129 for (i = 0; i <= last; i++) {
130 td = urb->td[i];
131 if (td) {
132 td->usb_dev = NULL;
133 urb->td[i] = NULL;
134 }
135 }
136 }
137}
138
139/*-------------------------------------------------------------------------*/
140
141#ifdef DEBUG
Stefan Roese7770ce42005-08-02 10:05:21 +0200142static int sohci_get_current_frame_number (struct usb_device * dev);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200143
144/* debug| print the main components of an URB
145 * small: 0) header + data packets 1) just header */
146
Stefan Roese7770ce42005-08-02 10:05:21 +0200147static void pkt_print (struct usb_device * dev, unsigned long pipe, void * buffer,
148 int transfer_len, struct devrequest * setup, char * str, int small)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200149{
Stefan Roese7770ce42005-08-02 10:05:21 +0200150 urb_priv_t * purb = &urb_priv;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200151
152 dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx",
Stefan Roese7770ce42005-08-02 10:05:21 +0200153 str,
154 sohci_get_current_frame_number (dev),
155 usb_pipedevice (pipe),
156 usb_pipeendpoint (pipe),
157 usb_pipeout (pipe)? 'O': 'I',
158 usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"):
159 (usb_pipecontrol (pipe)? "CTRL": "BULK"),
160 purb->actual_length,
161 transfer_len, dev->status);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200162#ifdef OHCI_VERBOSE_DEBUG
163 if (!small) {
164 int i, len;
165
Stefan Roese7770ce42005-08-02 10:05:21 +0200166 if (usb_pipecontrol (pipe)) {
167 printf (__FILE__ ": cmd(8):");
168 for (i = 0; i < 8 ; i++)
169 printf (" %02x", ((__u8 *) setup) [i]);
170 printf ("\n");
Stefan Roesec157d8e2005-08-01 16:41:48 +0200171 }
172 if (transfer_len > 0 && buffer) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200173 printf (__FILE__ ": data(%d/%d):",
174 purb->actual_length,
175 transfer_len);
176 len = usb_pipeout (pipe)?
177 transfer_len: purb->actual_length;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200178 for (i = 0; i < 16 && i < len; i++)
Stefan Roese7770ce42005-08-02 10:05:21 +0200179 printf (" %02x", ((__u8 *) buffer) [i]);
180 printf ("%s\n", i < len? "...": "");
Stefan Roesec157d8e2005-08-01 16:41:48 +0200181 }
182 }
183#endif
184}
185
186/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/
Stefan Roese7770ce42005-08-02 10:05:21 +0200187void ep_print_int_eds (ohci_t *ohci, char * str) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200188 int i, j;
Stefan Roese7770ce42005-08-02 10:05:21 +0200189 __u32 * ed_p;
190 for (i= 0; i < 32; i++) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200191 j = 5;
Stefan Roese7770ce42005-08-02 10:05:21 +0200192 ed_p = &(ohci->hcca->int_table [i]);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200193 if (*ed_p == 0)
Stefan Roese7770ce42005-08-02 10:05:21 +0200194 continue;
195 printf (__FILE__ ": %s branch int %2d(%2x):", str, i, i);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200196 while (*ed_p != 0 && j--) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200197 ed_t *ed = (ed_t *)ohci_cpu_to_le32(ed_p);
198 printf (" ed: %4x;", ed->hwINFO);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200199 ed_p = &ed->hwNextED;
200 }
Stefan Roese7770ce42005-08-02 10:05:21 +0200201 printf ("\n");
Stefan Roesec157d8e2005-08-01 16:41:48 +0200202 }
203}
204
Stefan Roese7770ce42005-08-02 10:05:21 +0200205static void ohci_dump_intr_mask (char *label, __u32 mask)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200206{
Stefan Roese7770ce42005-08-02 10:05:21 +0200207 dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s",
208 label,
209 mask,
210 (mask & OHCI_INTR_MIE) ? " MIE" : "",
211 (mask & OHCI_INTR_OC) ? " OC" : "",
212 (mask & OHCI_INTR_RHSC) ? " RHSC" : "",
213 (mask & OHCI_INTR_FNO) ? " FNO" : "",
214 (mask & OHCI_INTR_UE) ? " UE" : "",
215 (mask & OHCI_INTR_RD) ? " RD" : "",
216 (mask & OHCI_INTR_SF) ? " SF" : "",
217 (mask & OHCI_INTR_WDH) ? " WDH" : "",
218 (mask & OHCI_INTR_SO) ? " SO" : ""
219 );
Stefan Roesec157d8e2005-08-01 16:41:48 +0200220}
221
Stefan Roese7770ce42005-08-02 10:05:21 +0200222static void maybe_print_eds (char *label, __u32 value)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200223{
Stefan Roese7770ce42005-08-02 10:05:21 +0200224 ed_t *edp = (ed_t *)value;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200225
226 if (value) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200227 dbg ("%s %08x", label, value);
228 dbg ("%08x", edp->hwINFO);
229 dbg ("%08x", edp->hwTailP);
230 dbg ("%08x", edp->hwHeadP);
231 dbg ("%08x", edp->hwNextED);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200232 }
233}
234
Stefan Roese7770ce42005-08-02 10:05:21 +0200235static char * hcfs2string (int state)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200236{
237 switch (state) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200238 case OHCI_USB_RESET: return "reset";
239 case OHCI_USB_RESUME: return "resume";
240 case OHCI_USB_OPER: return "operational";
241 case OHCI_USB_SUSPEND: return "suspend";
Stefan Roesec157d8e2005-08-01 16:41:48 +0200242 }
243 return "?";
244}
245
246/* dump control and status registers */
Stefan Roese7770ce42005-08-02 10:05:21 +0200247static void ohci_dump_status (ohci_t *controller)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200248{
Stefan Roese7770ce42005-08-02 10:05:21 +0200249 struct ohci_regs *regs = controller->regs;
250 __u32 temp;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200251
Stefan Roese7770ce42005-08-02 10:05:21 +0200252 temp = readl (&regs->revision) & 0xff;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200253 if (temp != 0x10)
Stefan Roese7770ce42005-08-02 10:05:21 +0200254 dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f));
Stefan Roesec157d8e2005-08-01 16:41:48 +0200255
Stefan Roese7770ce42005-08-02 10:05:21 +0200256 temp = readl (&regs->control);
257 dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp,
258 (temp & OHCI_CTRL_RWE) ? " RWE" : "",
259 (temp & OHCI_CTRL_RWC) ? " RWC" : "",
260 (temp & OHCI_CTRL_IR) ? " IR" : "",
261 hcfs2string (temp & OHCI_CTRL_HCFS),
262 (temp & OHCI_CTRL_BLE) ? " BLE" : "",
263 (temp & OHCI_CTRL_CLE) ? " CLE" : "",
264 (temp & OHCI_CTRL_IE) ? " IE" : "",
265 (temp & OHCI_CTRL_PLE) ? " PLE" : "",
266 temp & OHCI_CTRL_CBSR
267 );
Stefan Roesec157d8e2005-08-01 16:41:48 +0200268
Stefan Roese7770ce42005-08-02 10:05:21 +0200269 temp = readl (&regs->cmdstatus);
270 dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp,
271 (temp & OHCI_SOC) >> 16,
272 (temp & OHCI_OCR) ? " OCR" : "",
273 (temp & OHCI_BLF) ? " BLF" : "",
274 (temp & OHCI_CLF) ? " CLF" : "",
275 (temp & OHCI_HCR) ? " HCR" : ""
276 );
Stefan Roesec157d8e2005-08-01 16:41:48 +0200277
Stefan Roese7770ce42005-08-02 10:05:21 +0200278 ohci_dump_intr_mask ("intrstatus", readl (&regs->intrstatus));
279 ohci_dump_intr_mask ("intrenable", readl (&regs->intrenable));
Stefan Roesec157d8e2005-08-01 16:41:48 +0200280
Stefan Roese7770ce42005-08-02 10:05:21 +0200281 maybe_print_eds ("ed_periodcurrent", readl (&regs->ed_periodcurrent));
Stefan Roesec157d8e2005-08-01 16:41:48 +0200282
Stefan Roese7770ce42005-08-02 10:05:21 +0200283 maybe_print_eds ("ed_controlhead", readl (&regs->ed_controlhead));
284 maybe_print_eds ("ed_controlcurrent", readl (&regs->ed_controlcurrent));
Stefan Roesec157d8e2005-08-01 16:41:48 +0200285
Stefan Roese7770ce42005-08-02 10:05:21 +0200286 maybe_print_eds ("ed_bulkhead", readl (&regs->ed_bulkhead));
287 maybe_print_eds ("ed_bulkcurrent", readl (&regs->ed_bulkcurrent));
Stefan Roesec157d8e2005-08-01 16:41:48 +0200288
Stefan Roese7770ce42005-08-02 10:05:21 +0200289 maybe_print_eds ("donehead", readl (&regs->donehead));
Stefan Roesec157d8e2005-08-01 16:41:48 +0200290}
291
Stefan Roese7770ce42005-08-02 10:05:21 +0200292static void ohci_dump_roothub (ohci_t *controller, int verbose)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200293{
Stefan Roese7770ce42005-08-02 10:05:21 +0200294 __u32 temp, ndp, i;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200295
Stefan Roese7770ce42005-08-02 10:05:21 +0200296 temp = roothub_a (controller);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200297 ndp = (temp & RH_A_NDP);
298
299 if (verbose) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200300 dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp,
301 ((temp & RH_A_POTPGT) >> 24) & 0xff,
302 (temp & RH_A_NOCP) ? " NOCP" : "",
303 (temp & RH_A_OCPM) ? " OCPM" : "",
304 (temp & RH_A_DT) ? " DT" : "",
305 (temp & RH_A_NPS) ? " NPS" : "",
306 (temp & RH_A_PSM) ? " PSM" : "",
307 ndp
308 );
309 temp = roothub_b (controller);
310 dbg ("roothub.b: %08x PPCM=%04x DR=%04x",
311 temp,
312 (temp & RH_B_PPCM) >> 16,
313 (temp & RH_B_DR)
314 );
315 temp = roothub_status (controller);
316 dbg ("roothub.status: %08x%s%s%s%s%s%s",
317 temp,
318 (temp & RH_HS_CRWE) ? " CRWE" : "",
319 (temp & RH_HS_OCIC) ? " OCIC" : "",
320 (temp & RH_HS_LPSC) ? " LPSC" : "",
321 (temp & RH_HS_DRWE) ? " DRWE" : "",
322 (temp & RH_HS_OCI) ? " OCI" : "",
323 (temp & RH_HS_LPS) ? " LPS" : ""
324 );
Stefan Roesec157d8e2005-08-01 16:41:48 +0200325 }
326
327 for (i = 0; i < ndp; i++) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200328 temp = roothub_portstatus (controller, i);
329 dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s",
330 i,
331 temp,
332 (temp & RH_PS_PRSC) ? " PRSC" : "",
333 (temp & RH_PS_OCIC) ? " OCIC" : "",
334 (temp & RH_PS_PSSC) ? " PSSC" : "",
335 (temp & RH_PS_PESC) ? " PESC" : "",
336 (temp & RH_PS_CSC) ? " CSC" : "",
337
338 (temp & RH_PS_LSDA) ? " LSDA" : "",
339 (temp & RH_PS_PPS) ? " PPS" : "",
340 (temp & RH_PS_PRS) ? " PRS" : "",
341 (temp & RH_PS_POCI) ? " POCI" : "",
342 (temp & RH_PS_PSS) ? " PSS" : "",
343
344 (temp & RH_PS_PES) ? " PES" : "",
345 (temp & RH_PS_CCS) ? " CCS" : ""
346 );
Stefan Roesec157d8e2005-08-01 16:41:48 +0200347 }
348}
349
Stefan Roese7770ce42005-08-02 10:05:21 +0200350static void ohci_dump (ohci_t *controller, int verbose)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200351{
Stefan Roese7770ce42005-08-02 10:05:21 +0200352 dbg ("OHCI controller usb-%s state", controller->slot_name);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200353
354 /* dumps some of the state we know about */
Stefan Roese7770ce42005-08-02 10:05:21 +0200355 ohci_dump_status (controller);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200356 if (verbose)
Stefan Roese7770ce42005-08-02 10:05:21 +0200357 ep_print_int_eds (controller, "hcca");
358 dbg ("hcca frame #%04x", controller->hcca->frame_no);
359 ohci_dump_roothub (controller, 1);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200360}
361
Stefan Roese7770ce42005-08-02 10:05:21 +0200362
363#endif /* DEBUG */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200364
365/*-------------------------------------------------------------------------*
366 * Interface functions (URB)
367 *-------------------------------------------------------------------------*/
368
369/* get a transfer request */
370
371int sohci_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer,
Stefan Roese7770ce42005-08-02 10:05:21 +0200372 int transfer_len, struct devrequest *setup, int interval)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200373{
374 ohci_t *ohci;
Stefan Roese7770ce42005-08-02 10:05:21 +0200375 ed_t * ed;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200376 urb_priv_t *purb_priv;
377 int i, size = 0;
378
379 ohci = &gohci;
380
381 /* when controller's hung, permit only roothub cleanup attempts
382 * such as powering down ports */
383 if (ohci->disabled) {
384 err("sohci_submit_job: EPIPE");
385 return -1;
386 }
387
Stefan Roese7770ce42005-08-02 10:05:21 +0200388 /* if we have an unfinished URB from previous transaction let's
389 * fail and scream as quickly as possible so as not to corrupt
390 * further communication */
391 if (!urb_finished) {
392 err("sohci_submit_job: URB NOT FINISHED");
393 return -1;
394 }
395 /* we're about to begin a new transaction here so mark the URB unfinished */
396 urb_finished = 0;
397
Stefan Roesec157d8e2005-08-01 16:41:48 +0200398 /* every endpoint has a ed, locate and fill it */
Stefan Roese7770ce42005-08-02 10:05:21 +0200399 if (!(ed = ep_add_ed (dev, pipe))) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200400 err("sohci_submit_job: ENOMEM");
401 return -1;
402 }
403
404 /* for the private part of the URB we need the number of TDs (size) */
Stefan Roese7770ce42005-08-02 10:05:21 +0200405 switch (usb_pipetype (pipe)) {
406 case PIPE_BULK: /* one TD for every 4096 Byte */
407 size = (transfer_len - 1) / 4096 + 1;
408 break;
409 case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */
410 size = (transfer_len == 0)? 2:
411 (transfer_len - 1) / 4096 + 3;
412 break;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200413 }
414
415 if (size >= (N_URB_TD - 1)) {
416 err("need %d TDs, only have %d", size, N_URB_TD);
417 return -1;
418 }
419 purb_priv = &urb_priv;
420 purb_priv->pipe = pipe;
421
422 /* fill the private part of the URB */
423 purb_priv->length = size;
424 purb_priv->ed = ed;
425 purb_priv->actual_length = 0;
426
427 /* allocate the TDs */
428 /* note that td[0] was allocated in ep_add_ed */
429 for (i = 0; i < size; i++) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200430 purb_priv->td[i] = td_alloc (dev);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200431 if (!purb_priv->td[i]) {
432 purb_priv->length = i;
Stefan Roese7770ce42005-08-02 10:05:21 +0200433 urb_free_priv (purb_priv);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200434 err("sohci_submit_job: ENOMEM");
435 return -1;
436 }
437 }
438
439 if (ed->state == ED_NEW || (ed->state & ED_DEL)) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200440 urb_free_priv (purb_priv);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200441 err("sohci_submit_job: EINVAL");
442 return -1;
443 }
444
445 /* link the ed into a chain if is not already */
446 if (ed->state != ED_OPER)
Stefan Roese7770ce42005-08-02 10:05:21 +0200447 ep_link (ohci, ed);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200448
449 /* fill the TDs and link it to the ed */
Stefan Roese7770ce42005-08-02 10:05:21 +0200450 td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv, interval);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200451
452 return 0;
453}
454
455/*-------------------------------------------------------------------------*/
456
457#ifdef DEBUG
458/* tell us the current USB frame number */
459
Stefan Roese7770ce42005-08-02 10:05:21 +0200460static int sohci_get_current_frame_number (struct usb_device *usb_dev)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200461{
462 ohci_t *ohci = &gohci;
463
Stefan Roese7770ce42005-08-02 10:05:21 +0200464 return ohci_cpu_to_le16 (ohci->hcca->frame_no);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200465}
466#endif
467
468/*-------------------------------------------------------------------------*
469 * ED handling functions
470 *-------------------------------------------------------------------------*/
471
472/* link an ed into one of the HC chains */
473
Stefan Roese7770ce42005-08-02 10:05:21 +0200474static int ep_link (ohci_t *ohci, ed_t *edi)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200475{
476 volatile ed_t *ed = edi;
477
478 ed->state = ED_OPER;
479
480 switch (ed->type) {
481 case PIPE_CONTROL:
482 ed->hwNextED = 0;
483 if (ohci->ed_controltail == NULL) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200484 writel (ed, &ohci->regs->ed_controlhead);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200485 } else {
Stefan Roese7770ce42005-08-02 10:05:21 +0200486 ohci->ed_controltail->hwNextED = ohci_cpu_to_le32 ((unsigned long)ed);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200487 }
488 ed->ed_prev = ohci->ed_controltail;
489 if (!ohci->ed_controltail && !ohci->ed_rm_list[0] &&
Stefan Roese7770ce42005-08-02 10:05:21 +0200490 !ohci->ed_rm_list[1] && !ohci->sleeping) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200491 ohci->hc_control |= OHCI_CTRL_CLE;
Stefan Roese7770ce42005-08-02 10:05:21 +0200492 writel (ohci->hc_control, &ohci->regs->control);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200493 }
494 ohci->ed_controltail = edi;
495 break;
496
497 case PIPE_BULK:
498 ed->hwNextED = 0;
499 if (ohci->ed_bulktail == NULL) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200500 writel (ed, &ohci->regs->ed_bulkhead);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200501 } else {
Stefan Roese7770ce42005-08-02 10:05:21 +0200502 ohci->ed_bulktail->hwNextED = ohci_cpu_to_le32 ((unsigned long)ed);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200503 }
504 ed->ed_prev = ohci->ed_bulktail;
505 if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] &&
Stefan Roese7770ce42005-08-02 10:05:21 +0200506 !ohci->ed_rm_list[1] && !ohci->sleeping) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200507 ohci->hc_control |= OHCI_CTRL_BLE;
Stefan Roese7770ce42005-08-02 10:05:21 +0200508 writel (ohci->hc_control, &ohci->regs->control);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200509 }
510 ohci->ed_bulktail = edi;
511 break;
512 }
513 return 0;
514}
515
516/*-------------------------------------------------------------------------*/
517
518/* unlink an ed from one of the HC chains.
519 * just the link to the ed is unlinked.
520 * the link from the ed still points to another operational ed or 0
521 * so the HC can eventually finish the processing of the unlinked ed */
522
Stefan Roese7770ce42005-08-02 10:05:21 +0200523static int ep_unlink (ohci_t *ohci, ed_t *edi)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200524{
525 volatile ed_t *ed = edi;
526
Stefan Roese7770ce42005-08-02 10:05:21 +0200527 ed->hwINFO |= ohci_cpu_to_le32 (OHCI_ED_SKIP);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200528
529 switch (ed->type) {
530 case PIPE_CONTROL:
531 if (ed->ed_prev == NULL) {
532 if (!ed->hwNextED) {
533 ohci->hc_control &= ~OHCI_CTRL_CLE;
Stefan Roese7770ce42005-08-02 10:05:21 +0200534 writel (ohci->hc_control, &ohci->regs->control);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200535 }
Stefan Roese7770ce42005-08-02 10:05:21 +0200536 writel (ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_controlhead);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200537 } else {
538 ed->ed_prev->hwNextED = ed->hwNextED;
539 }
540 if (ohci->ed_controltail == ed) {
541 ohci->ed_controltail = ed->ed_prev;
542 } else {
Stefan Roese7770ce42005-08-02 10:05:21 +0200543 ((ed_t *)ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200544 }
545 break;
546
547 case PIPE_BULK:
548 if (ed->ed_prev == NULL) {
549 if (!ed->hwNextED) {
550 ohci->hc_control &= ~OHCI_CTRL_BLE;
Stefan Roese7770ce42005-08-02 10:05:21 +0200551 writel (ohci->hc_control, &ohci->regs->control);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200552 }
Stefan Roese7770ce42005-08-02 10:05:21 +0200553 writel (ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_bulkhead);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200554 } else {
555 ed->ed_prev->hwNextED = ed->hwNextED;
556 }
557 if (ohci->ed_bulktail == ed) {
558 ohci->ed_bulktail = ed->ed_prev;
559 } else {
Stefan Roese7770ce42005-08-02 10:05:21 +0200560 ((ed_t *)ohci_cpu_to_le32 (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200561 }
562 break;
563 }
564 ed->state = ED_UNLINK;
565 return 0;
566}
567
Stefan Roese7770ce42005-08-02 10:05:21 +0200568
Stefan Roesec157d8e2005-08-01 16:41:48 +0200569/*-------------------------------------------------------------------------*/
570
571/* add/reinit an endpoint; this should be done once at the usb_set_configuration command,
572 * but the USB stack is a little bit stateless so we do it at every transaction
573 * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK
574 * in all other cases the state is left unchanged
575 * the ed info fields are setted anyway even though most of them should not change */
576
Stefan Roese7770ce42005-08-02 10:05:21 +0200577static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200578{
579 td_t *td;
580 ed_t *ed_ret;
581 volatile ed_t *ed;
582
Stefan Roese7770ce42005-08-02 10:05:21 +0200583 ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint (pipe) << 1) |
584 (usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))];
Stefan Roesec157d8e2005-08-01 16:41:48 +0200585
586 if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) {
587 err("ep_add_ed: pending delete");
588 /* pending delete request */
589 return NULL;
590 }
591
592 if (ed->state == ED_NEW) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200593 ed->hwINFO = ohci_cpu_to_le32 (OHCI_ED_SKIP); /* skip ed */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200594 /* dummy td; end of td list for ed */
Stefan Roese7770ce42005-08-02 10:05:21 +0200595 td = td_alloc (usb_dev);
596 ed->hwTailP = ohci_cpu_to_le32 ((unsigned long)td);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200597 ed->hwHeadP = ed->hwTailP;
598 ed->state = ED_UNLINK;
Stefan Roese7770ce42005-08-02 10:05:21 +0200599 ed->type = usb_pipetype (pipe);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200600 ohci_dev.ed_cnt++;
601 }
602
Stefan Roese7770ce42005-08-02 10:05:21 +0200603 ed->hwINFO = ohci_cpu_to_le32 (usb_pipedevice (pipe)
604 | usb_pipeendpoint (pipe) << 7
605 | (usb_pipeisoc (pipe)? 0x8000: 0)
606 | (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000))
Ilya Yanokc60795f2012-11-06 13:48:20 +0000607 | (usb_dev->speed == USB_SPEED_LOW) << 13
Stefan Roese7770ce42005-08-02 10:05:21 +0200608 | usb_maxpacket (usb_dev, pipe) << 16);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200609
610 return ed_ret;
611}
612
613/*-------------------------------------------------------------------------*
614 * TD handling functions
615 *-------------------------------------------------------------------------*/
616
617/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */
618
Stefan Roese7770ce42005-08-02 10:05:21 +0200619static void td_fill (ohci_t *ohci, unsigned int info,
620 void *data, int len,
621 struct usb_device *dev, int index, urb_priv_t *urb_priv)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200622{
Stefan Roese7770ce42005-08-02 10:05:21 +0200623 volatile td_t *td, *td_pt;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200624#ifdef OHCI_FILL_TRACE
625 int i;
626#endif
627
628 if (index > urb_priv->length) {
629 err("index > length");
630 return;
631 }
632 /* use this td as the next dummy */
Stefan Roese7770ce42005-08-02 10:05:21 +0200633 td_pt = urb_priv->td [index];
Stefan Roesec157d8e2005-08-01 16:41:48 +0200634 td_pt->hwNextTD = 0;
635
636 /* fill the old dummy TD */
Stefan Roese7770ce42005-08-02 10:05:21 +0200637 td = urb_priv->td [index] = (td_t *)(ohci_cpu_to_le32 (urb_priv->ed->hwTailP) & ~0xf);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200638
639 td->ed = urb_priv->ed;
640 td->next_dl_td = NULL;
641 td->index = index;
Stefan Roese7770ce42005-08-02 10:05:21 +0200642 td->data = (__u32)data;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200643#ifdef OHCI_FILL_TRACE
Remy Bohmer9dbc3662008-10-10 10:23:22 +0200644 if (usb_pipebulk(urb_priv->pipe) && usb_pipeout(urb_priv->pipe)) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200645 for (i = 0; i < len; i++)
Stefan Roese7770ce42005-08-02 10:05:21 +0200646 printf("td->data[%d] %#2x ",i, ((unsigned char *)td->data)[i]);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200647 printf("\n");
648 }
649#endif
650 if (!len)
651 data = 0;
652
Stefan Roese7770ce42005-08-02 10:05:21 +0200653 td->hwINFO = ohci_cpu_to_le32 (info);
654 td->hwCBP = ohci_cpu_to_le32 ((unsigned long)data);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200655 if (data)
Stefan Roese7770ce42005-08-02 10:05:21 +0200656 td->hwBE = ohci_cpu_to_le32 ((unsigned long)(data + len - 1));
Stefan Roesec157d8e2005-08-01 16:41:48 +0200657 else
658 td->hwBE = 0;
Stefan Roese7770ce42005-08-02 10:05:21 +0200659 td->hwNextTD = ohci_cpu_to_le32 ((unsigned long)td_pt);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200660
661 /* append to queue */
662 td->ed->hwTailP = td->hwNextTD;
663}
664
665/*-------------------------------------------------------------------------*/
666
667/* prepare all TDs of a transfer */
Stefan Roese7770ce42005-08-02 10:05:21 +0200668static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buffer,
669 int transfer_len, struct devrequest *setup, urb_priv_t *urb, int interval)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200670{
671 ohci_t *ohci = &gohci;
672 int data_len = transfer_len;
673 void *data;
674 int cnt = 0;
675 __u32 info = 0;
676 unsigned int toggle = 0;
677
678 /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */
Stefan Roese7770ce42005-08-02 10:05:21 +0200679 if(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200680 toggle = TD_T_TOGGLE;
681 } else {
682 toggle = TD_T_DATA0;
Stefan Roese7770ce42005-08-02 10:05:21 +0200683 usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 1);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200684 }
685 urb->td_cnt = 0;
686 if (data_len)
687 data = buffer;
688 else
689 data = 0;
690
Stefan Roese7770ce42005-08-02 10:05:21 +0200691 switch (usb_pipetype (pipe)) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200692 case PIPE_BULK:
Stefan Roese7770ce42005-08-02 10:05:21 +0200693 info = usb_pipeout (pipe)?
694 TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ;
695 while(data_len > 4096) {
696 td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, dev, cnt, urb);
697 data += 4096; data_len -= 4096; cnt++;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200698 }
Stefan Roese7770ce42005-08-02 10:05:21 +0200699 info = usb_pipeout (pipe)?
700 TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ;
701 td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, dev, cnt, urb);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200702 cnt++;
703
704 if (!ohci->sleeping)
Stefan Roese7770ce42005-08-02 10:05:21 +0200705 writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200706 break;
707
708 case PIPE_CONTROL:
709 info = TD_CC | TD_DP_SETUP | TD_T_DATA0;
Stefan Roese7770ce42005-08-02 10:05:21 +0200710 td_fill (ohci, info, setup, 8, dev, cnt++, urb);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200711 if (data_len > 0) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200712 info = usb_pipeout (pipe)?
713 TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200714 /* NOTE: mishandles transfers >8K, some >4K */
Stefan Roese7770ce42005-08-02 10:05:21 +0200715 td_fill (ohci, info, data, data_len, dev, cnt++, urb);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200716 }
Stefan Roese7770ce42005-08-02 10:05:21 +0200717 info = usb_pipeout (pipe)?
718 TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1;
719 td_fill (ohci, info, data, 0, dev, cnt++, urb);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200720 if (!ohci->sleeping)
Stefan Roese7770ce42005-08-02 10:05:21 +0200721 writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200722 break;
723 }
724 if (urb->length != cnt)
725 dbg("TD LENGTH %d != CNT %d", urb->length, cnt);
726}
727
728/*-------------------------------------------------------------------------*
729 * Done List handling functions
730 *-------------------------------------------------------------------------*/
731
Stefan Roese7770ce42005-08-02 10:05:21 +0200732
Stefan Roesec157d8e2005-08-01 16:41:48 +0200733/* calculate the transfer length and update the urb */
734
735static void dl_transfer_length(td_t * td)
736{
Stefan Roeseaf0af522011-11-15 08:01:45 +0000737 __u32 tdBE, tdCBP;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200738 urb_priv_t *lurb_priv = &urb_priv;
739
Stefan Roese7770ce42005-08-02 10:05:21 +0200740 tdBE = ohci_cpu_to_le32 (td->hwBE);
741 tdCBP = ohci_cpu_to_le32 (td->hwCBP);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200742
Stefan Roese7770ce42005-08-02 10:05:21 +0200743
Remy Bohmer9dbc3662008-10-10 10:23:22 +0200744 if (!(usb_pipecontrol(lurb_priv->pipe) &&
Stefan Roese7770ce42005-08-02 10:05:21 +0200745 ((td->index == 0) || (td->index == lurb_priv->length - 1)))) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200746 if (tdBE != 0) {
747 if (td->hwCBP == 0)
748 lurb_priv->actual_length += tdBE - td->data + 1;
749 else
750 lurb_priv->actual_length += tdCBP - td->data;
751 }
752 }
753}
754
755/*-------------------------------------------------------------------------*/
756
757/* replies to the request have to be on a FIFO basis so
758 * we reverse the reversed done-list */
759
Stefan Roese7770ce42005-08-02 10:05:21 +0200760static td_t * dl_reverse_done_list (ohci_t *ohci)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200761{
762 __u32 td_list_hc;
763 td_t *td_rev = NULL;
764 td_t *td_list = NULL;
765 urb_priv_t *lurb_priv = NULL;
766
Stefan Roese7770ce42005-08-02 10:05:21 +0200767 td_list_hc = ohci_cpu_to_le32 (ohci->hcca->done_head) & 0xfffffff0;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200768 ohci->hcca->done_head = 0;
769
770 while (td_list_hc) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200771 td_list = (td_t *)td_list_hc;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200772
Stefan Roese7770ce42005-08-02 10:05:21 +0200773 if (TD_CC_GET (ohci_cpu_to_le32 (td_list->hwINFO))) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200774 lurb_priv = &urb_priv;
775 dbg(" USB-error/status: %x : %p",
Stefan Roese7770ce42005-08-02 10:05:21 +0200776 TD_CC_GET (ohci_cpu_to_le32 (td_list->hwINFO)), td_list);
777 if (td_list->ed->hwHeadP & ohci_cpu_to_le32 (0x1)) {
778 if (lurb_priv && ((td_list->index + 1) < lurb_priv->length)) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200779 td_list->ed->hwHeadP =
Stefan Roese7770ce42005-08-02 10:05:21 +0200780 (lurb_priv->td[lurb_priv->length - 1]->hwNextTD & ohci_cpu_to_le32 (0xfffffff0)) |
781 (td_list->ed->hwHeadP & ohci_cpu_to_le32 (0x2));
782 lurb_priv->td_cnt += lurb_priv->length - td_list->index - 1;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200783 } else
Stefan Roese7770ce42005-08-02 10:05:21 +0200784 td_list->ed->hwHeadP &= ohci_cpu_to_le32 (0xfffffff2);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200785 }
786#ifdef CONFIG_MPC5200
787 td_list->hwNextTD = 0;
788#endif
789 }
790
791 td_list->next_dl_td = td_rev;
792 td_rev = td_list;
Stefan Roese7770ce42005-08-02 10:05:21 +0200793 td_list_hc = ohci_cpu_to_le32 (td_list->hwNextTD) & 0xfffffff0;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200794 }
795 return td_list;
796}
797
798/*-------------------------------------------------------------------------*/
799
800/* td done list */
Stefan Roese7770ce42005-08-02 10:05:21 +0200801static int dl_done_list (ohci_t *ohci, td_t *td_list)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200802{
803 td_t *td_list_next = NULL;
804 ed_t *ed;
805 int cc = 0;
Stefan Roese7770ce42005-08-02 10:05:21 +0200806 int stat = 0;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200807 /* urb_t *urb; */
808 urb_priv_t *lurb_priv;
809 __u32 tdINFO, edHeadP, edTailP;
810
811 while (td_list) {
812 td_list_next = td_list->next_dl_td;
813
814 lurb_priv = &urb_priv;
Stefan Roese7770ce42005-08-02 10:05:21 +0200815 tdINFO = ohci_cpu_to_le32 (td_list->hwINFO);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200816
817 ed = td_list->ed;
818
819 dl_transfer_length(td_list);
820
821 /* error code of transfer */
Stefan Roese7770ce42005-08-02 10:05:21 +0200822 cc = TD_CC_GET (tdINFO);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200823 if (++(lurb_priv->td_cnt) == lurb_priv->length) {
824 if ((ed->state & (ED_OPER | ED_UNLINK))
Stefan Roese7770ce42005-08-02 10:05:21 +0200825 && (lurb_priv->state != URB_DEL)) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200826 dbg("ConditionCode %#x", cc);
827 stat = cc_to_error[cc];
Stefan Roese7770ce42005-08-02 10:05:21 +0200828 urb_finished = 1;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200829 }
830 }
831
832 if (ed->state != ED_NEW) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200833 edHeadP = ohci_cpu_to_le32 (ed->hwHeadP) & 0xfffffff0;
834 edTailP = ohci_cpu_to_le32 (ed->hwTailP);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200835
836 /* unlink eds if they are not busy */
837 if ((edHeadP == edTailP) && (ed->state == ED_OPER))
Stefan Roese7770ce42005-08-02 10:05:21 +0200838 ep_unlink (ohci, ed);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200839 }
840
841 td_list = td_list_next;
842 }
843 return stat;
844}
845
846/*-------------------------------------------------------------------------*
847 * Virtual Root Hub
848 *-------------------------------------------------------------------------*/
849
850/* Device descriptor */
Stefan Roese7770ce42005-08-02 10:05:21 +0200851static __u8 root_hub_dev_des[] =
852{
853 0x12, /* __u8 bLength; */
854 0x01, /* __u8 bDescriptorType; Device */
855 0x10, /* __u16 bcdUSB; v1.1 */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200856 0x01,
Stefan Roese7770ce42005-08-02 10:05:21 +0200857 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
858 0x00, /* __u8 bDeviceSubClass; */
859 0x00, /* __u8 bDeviceProtocol; */
860 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
861 0x00, /* __u16 idVendor; */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200862 0x00,
Stefan Roese7770ce42005-08-02 10:05:21 +0200863 0x00, /* __u16 idProduct; */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200864 0x00,
Stefan Roese7770ce42005-08-02 10:05:21 +0200865 0x00, /* __u16 bcdDevice; */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200866 0x00,
Stefan Roese7770ce42005-08-02 10:05:21 +0200867 0x00, /* __u8 iManufacturer; */
868 0x01, /* __u8 iProduct; */
869 0x00, /* __u8 iSerialNumber; */
870 0x01 /* __u8 bNumConfigurations; */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200871};
872
Stefan Roese7770ce42005-08-02 10:05:21 +0200873
Stefan Roesec157d8e2005-08-01 16:41:48 +0200874/* Configuration descriptor */
Stefan Roese7770ce42005-08-02 10:05:21 +0200875static __u8 root_hub_config_des[] =
876{
877 0x09, /* __u8 bLength; */
878 0x02, /* __u8 bDescriptorType; Configuration */
879 0x19, /* __u16 wTotalLength; */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200880 0x00,
Stefan Roese7770ce42005-08-02 10:05:21 +0200881 0x01, /* __u8 bNumInterfaces; */
882 0x01, /* __u8 bConfigurationValue; */
883 0x00, /* __u8 iConfiguration; */
884 0x40, /* __u8 bmAttributes;
885 Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */
886 0x00, /* __u8 MaxPower; */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200887
888 /* interface */
Stefan Roese7770ce42005-08-02 10:05:21 +0200889 0x09, /* __u8 if_bLength; */
890 0x04, /* __u8 if_bDescriptorType; Interface */
891 0x00, /* __u8 if_bInterfaceNumber; */
892 0x00, /* __u8 if_bAlternateSetting; */
893 0x01, /* __u8 if_bNumEndpoints; */
894 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
895 0x00, /* __u8 if_bInterfaceSubClass; */
896 0x00, /* __u8 if_bInterfaceProtocol; */
897 0x00, /* __u8 if_iInterface; */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200898
899 /* endpoint */
Stefan Roese7770ce42005-08-02 10:05:21 +0200900 0x07, /* __u8 ep_bLength; */
901 0x05, /* __u8 ep_bDescriptorType; Endpoint */
902 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
903 0x03, /* __u8 ep_bmAttributes; Interrupt */
904 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200905 0x00,
Stefan Roese7770ce42005-08-02 10:05:21 +0200906 0xff /* __u8 ep_bInterval; 255 ms */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200907};
908
Stefan Roese7770ce42005-08-02 10:05:21 +0200909static unsigned char root_hub_str_index0[] =
910{
Stefan Roesec157d8e2005-08-01 16:41:48 +0200911 0x04, /* __u8 bLength; */
912 0x03, /* __u8 bDescriptorType; String-descriptor */
913 0x09, /* __u8 lang ID */
914 0x04, /* __u8 lang ID */
915};
916
Stefan Roese7770ce42005-08-02 10:05:21 +0200917static unsigned char root_hub_str_index1[] =
918{
Stefan Roesec157d8e2005-08-01 16:41:48 +0200919 28, /* __u8 bLength; */
920 0x03, /* __u8 bDescriptorType; String-descriptor */
921 'O', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200922 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200923 'H', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200924 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200925 'C', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200926 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200927 'I', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200928 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200929 ' ', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200930 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200931 'R', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200932 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200933 'o', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200934 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200935 'o', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200936 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200937 't', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200938 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200939 ' ', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200940 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200941 'H', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200942 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200943 'u', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200944 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200945 'b', /* __u8 Unicode */
Stefan Roese7770ce42005-08-02 10:05:21 +0200946 0, /* __u8 Unicode */
Stefan Roesec157d8e2005-08-01 16:41:48 +0200947};
948
949/* Hub class-specific descriptor is constructed dynamically */
950
Stefan Roese7770ce42005-08-02 10:05:21 +0200951
Stefan Roesec157d8e2005-08-01 16:41:48 +0200952/*-------------------------------------------------------------------------*/
953
954#define OK(x) len = (x); break
955#ifdef DEBUG
956#define WR_RH_STAT(x) {info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);}
957#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);}
958#else
959#define WR_RH_STAT(x) writel((x), &gohci.regs->roothub.status)
960#define WR_RH_PORTSTAT(x) writel((x), &gohci.regs->roothub.portstatus[wIndex-1])
961#endif
962#define RD_RH_STAT roothub_status(&gohci)
963#define RD_RH_PORTSTAT roothub_portstatus(&gohci,wIndex-1)
964
965/* request to virtual root hub */
966
Stefan Roese7770ce42005-08-02 10:05:21 +0200967int rh_check_port_status(ohci_t *controller)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200968{
969 __u32 temp, ndp, i;
970 int res;
971
972 res = -1;
Stefan Roese7770ce42005-08-02 10:05:21 +0200973 temp = roothub_a (controller);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200974 ndp = (temp & RH_A_NDP);
975 for (i = 0; i < ndp; i++) {
Stefan Roese7770ce42005-08-02 10:05:21 +0200976 temp = roothub_portstatus (controller, i);
Stefan Roesec157d8e2005-08-01 16:41:48 +0200977 /* check for a device disconnect */
978 if (((temp & (RH_PS_PESC | RH_PS_CSC)) ==
Stefan Roese7770ce42005-08-02 10:05:21 +0200979 (RH_PS_PESC | RH_PS_CSC)) &&
980 ((temp & RH_PS_CCS) == 0)) {
Stefan Roesec157d8e2005-08-01 16:41:48 +0200981 res = i;
982 break;
983 }
984 }
985 return res;
986}
987
988static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
Stefan Roese7770ce42005-08-02 10:05:21 +0200989 void *buffer, int transfer_len, struct devrequest *cmd)
Stefan Roesec157d8e2005-08-01 16:41:48 +0200990{
Stefan Roese7770ce42005-08-02 10:05:21 +0200991 void * data = buffer;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200992 int leni = transfer_len;
993 int len = 0;
994 int stat = 0;
995 __u32 datab[4];
Stefan Roese7770ce42005-08-02 10:05:21 +0200996 __u8 *data_buf = (__u8 *)datab;
Stefan Roesec157d8e2005-08-01 16:41:48 +0200997 __u16 bmRType_bReq;
998 __u16 wValue;
999 __u16 wIndex;
1000 __u16 wLength;
1001
1002#ifdef DEBUG
Stefan Roese7770ce42005-08-02 10:05:21 +02001003urb_priv.actual_length = 0;
1004pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe));
Stefan Roesec157d8e2005-08-01 16:41:48 +02001005#endif
Remy Bohmer9dbc3662008-10-10 10:23:22 +02001006 if (usb_pipeint(pipe)) {
Stefan Roesec157d8e2005-08-01 16:41:48 +02001007 info("Root-Hub submit IRQ: NOT implemented");
1008 return 0;
1009 }
1010
Stefan Roese7770ce42005-08-02 10:05:21 +02001011 bmRType_bReq = cmd->requesttype | (cmd->request << 8);
1012 wValue = m16_swap (cmd->value);
1013 wIndex = m16_swap (cmd->index);
1014 wLength = m16_swap (cmd->length);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001015
1016 info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x",
Stefan Roese7770ce42005-08-02 10:05:21 +02001017 dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001018
1019 switch (bmRType_bReq) {
Stefan Roese7770ce42005-08-02 10:05:21 +02001020 /* Request Destination:
1021 without flags: Device,
1022 RH_INTERFACE: interface,
1023 RH_ENDPOINT: endpoint,
1024 RH_CLASS means HUB here,
1025 RH_OTHER | RH_CLASS almost ever means HUB_PORT here
1026 */
Stefan Roesec157d8e2005-08-01 16:41:48 +02001027
1028 case RH_GET_STATUS:
Stefan Roese7770ce42005-08-02 10:05:21 +02001029 *(__u16 *) data_buf = m16_swap (1); OK (2);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001030 case RH_GET_STATUS | RH_INTERFACE:
Stefan Roese7770ce42005-08-02 10:05:21 +02001031 *(__u16 *) data_buf = m16_swap (0); OK (2);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001032 case RH_GET_STATUS | RH_ENDPOINT:
Stefan Roese7770ce42005-08-02 10:05:21 +02001033 *(__u16 *) data_buf = m16_swap (0); OK (2);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001034 case RH_GET_STATUS | RH_CLASS:
Stefan Roese7770ce42005-08-02 10:05:21 +02001035 *(__u32 *) data_buf = m32_swap (
1036 RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE));
1037 OK (4);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001038 case RH_GET_STATUS | RH_OTHER | RH_CLASS:
Stefan Roese7770ce42005-08-02 10:05:21 +02001039 *(__u32 *) data_buf = m32_swap (RD_RH_PORTSTAT); OK (4);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001040
1041 case RH_CLEAR_FEATURE | RH_ENDPOINT:
1042 switch (wValue) {
Stefan Roese7770ce42005-08-02 10:05:21 +02001043 case (RH_ENDPOINT_STALL): OK (0);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001044 }
1045 break;
1046
1047 case RH_CLEAR_FEATURE | RH_CLASS:
1048 switch (wValue) {
Stefan Roese7770ce42005-08-02 10:05:21 +02001049 case RH_C_HUB_LOCAL_POWER:
1050 OK(0);
1051 case (RH_C_HUB_OVER_CURRENT):
1052 WR_RH_STAT(RH_HS_OCIC); OK (0);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001053 }
1054 break;
1055
1056 case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
1057 switch (wValue) {
Stefan Roese7770ce42005-08-02 10:05:21 +02001058 case (RH_PORT_ENABLE):
1059 WR_RH_PORTSTAT (RH_PS_CCS ); OK (0);
1060 case (RH_PORT_SUSPEND):
1061 WR_RH_PORTSTAT (RH_PS_POCI); OK (0);
1062 case (RH_PORT_POWER):
1063 WR_RH_PORTSTAT (RH_PS_LSDA); OK (0);
1064 case (RH_C_PORT_CONNECTION):
1065 WR_RH_PORTSTAT (RH_PS_CSC ); OK (0);
1066 case (RH_C_PORT_ENABLE):
1067 WR_RH_PORTSTAT (RH_PS_PESC); OK (0);
1068 case (RH_C_PORT_SUSPEND):
1069 WR_RH_PORTSTAT (RH_PS_PSSC); OK (0);
1070 case (RH_C_PORT_OVER_CURRENT):
1071 WR_RH_PORTSTAT (RH_PS_OCIC); OK (0);
1072 case (RH_C_PORT_RESET):
1073 WR_RH_PORTSTAT (RH_PS_PRSC); OK (0);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001074 }
1075 break;
1076
1077 case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
1078 switch (wValue) {
Stefan Roese7770ce42005-08-02 10:05:21 +02001079 case (RH_PORT_SUSPEND):
1080 WR_RH_PORTSTAT (RH_PS_PSS ); OK (0);
1081 case (RH_PORT_RESET): /* BUG IN HUP CODE *********/
1082 if (RD_RH_PORTSTAT & RH_PS_CCS)
1083 WR_RH_PORTSTAT (RH_PS_PRS);
1084 OK (0);
1085 case (RH_PORT_POWER):
1086 WR_RH_PORTSTAT (RH_PS_PPS ); OK (0);
1087 case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/
1088 if (RD_RH_PORTSTAT & RH_PS_CCS)
1089 WR_RH_PORTSTAT (RH_PS_PES );
1090 OK (0);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001091 }
1092 break;
1093
Stefan Roese7770ce42005-08-02 10:05:21 +02001094 case RH_SET_ADDRESS: gohci.rh.devnum = wValue; OK(0);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001095
1096 case RH_GET_DESCRIPTOR:
1097 switch ((wValue & 0xff00) >> 8) {
Stefan Roese7770ce42005-08-02 10:05:21 +02001098 case (0x01): /* device descriptor */
Stefan Roesec157d8e2005-08-01 16:41:48 +02001099 len = min_t(unsigned int,
Stefan Roese7770ce42005-08-02 10:05:21 +02001100 leni,
1101 min_t(unsigned int,
1102 sizeof (root_hub_dev_des),
1103 wLength));
1104 data_buf = root_hub_dev_des; OK(len);
1105 case (0x02): /* configuration descriptor */
Stefan Roesec157d8e2005-08-01 16:41:48 +02001106 len = min_t(unsigned int,
Stefan Roese7770ce42005-08-02 10:05:21 +02001107 leni,
1108 min_t(unsigned int,
1109 sizeof (root_hub_config_des),
1110 wLength));
1111 data_buf = root_hub_config_des; OK(len);
1112 case (0x03): /* string descriptors */
1113 if(wValue==0x0300) {
1114 len = min_t(unsigned int,
1115 leni,
1116 min_t(unsigned int,
1117 sizeof (root_hub_str_index0),
1118 wLength));
1119 data_buf = root_hub_str_index0;
1120 OK(len);
1121 }
1122 if(wValue==0x0301) {
1123 len = min_t(unsigned int,
1124 leni,
1125 min_t(unsigned int,
1126 sizeof (root_hub_str_index1),
1127 wLength));
1128 data_buf = root_hub_str_index1;
1129 OK(len);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001130 }
Stefan Roese7770ce42005-08-02 10:05:21 +02001131 default:
1132 stat = USB_ST_STALLED;
Stefan Roesec157d8e2005-08-01 16:41:48 +02001133 }
1134 break;
1135
1136 case RH_GET_DESCRIPTOR | RH_CLASS:
Stefan Roese7770ce42005-08-02 10:05:21 +02001137 {
1138 __u32 temp = roothub_a (&gohci);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001139
Stefan Roese7770ce42005-08-02 10:05:21 +02001140 data_buf [0] = 9; /* min length; */
1141 data_buf [1] = 0x29;
1142 data_buf [2] = temp & RH_A_NDP;
1143 data_buf [3] = 0;
1144 if (temp & RH_A_PSM) /* per-port power switching? */
1145 data_buf [3] |= 0x1;
1146 if (temp & RH_A_NOCP) /* no overcurrent reporting? */
1147 data_buf [3] |= 0x10;
1148 else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */
1149 data_buf [3] |= 0x8;
Stefan Roesec157d8e2005-08-01 16:41:48 +02001150
Stefan Roese7770ce42005-08-02 10:05:21 +02001151 /* corresponds to data_buf[4-7] */
1152 datab [1] = 0;
1153 data_buf [5] = (temp & RH_A_POTPGT) >> 24;
1154 temp = roothub_b (&gohci);
1155 data_buf [7] = temp & RH_B_DR;
1156 if (data_buf [2] < 7) {
1157 data_buf [8] = 0xff;
1158 } else {
1159 data_buf [0] += 2;
1160 data_buf [8] = (temp & RH_B_DR) >> 8;
1161 data_buf [10] = data_buf [9] = 0xff;
1162 }
Stefan Roesec157d8e2005-08-01 16:41:48 +02001163
Stefan Roese7770ce42005-08-02 10:05:21 +02001164 len = min_t(unsigned int, leni,
1165 min_t(unsigned int, data_buf [0], wLength));
1166 OK (len);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001167 }
1168
Stefan Roese7770ce42005-08-02 10:05:21 +02001169 case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK (1);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001170
Stefan Roese7770ce42005-08-02 10:05:21 +02001171 case RH_SET_CONFIGURATION: WR_RH_STAT (0x10000); OK (0);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001172
1173 default:
Stefan Roese7770ce42005-08-02 10:05:21 +02001174 dbg ("unsupported root hub command");
Stefan Roesec157d8e2005-08-01 16:41:48 +02001175 stat = USB_ST_STALLED;
1176 }
1177
1178#ifdef DEBUG
Stefan Roese7770ce42005-08-02 10:05:21 +02001179 ohci_dump_roothub (&gohci, 1);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001180#endif
1181
1182 len = min_t(int, len, leni);
1183 if (data != data_buf)
Stefan Roese7770ce42005-08-02 10:05:21 +02001184 memcpy (data, data_buf, len);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001185 dev->act_len = len;
1186 dev->status = stat;
1187
1188#ifdef DEBUG
1189 if (transfer_len)
1190 urb_priv.actual_length = transfer_len;
Stefan Roese7770ce42005-08-02 10:05:21 +02001191 pkt_print(dev, pipe, buffer, transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001192#endif
1193
1194 return stat;
1195}
1196
1197/*-------------------------------------------------------------------------*/
1198
1199/* common code for handling submit messages - used for all but root hub */
1200/* accesses. */
1201int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
Stefan Roese7770ce42005-08-02 10:05:21 +02001202 int transfer_len, struct devrequest *setup, int interval)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001203{
1204 int stat = 0;
1205 int maxsize = usb_maxpacket(dev, pipe);
1206 int timeout;
1207
1208 /* device pulled? Shortcut the action. */
1209 if (devgone == dev) {
1210 dev->status = USB_ST_CRC_ERR;
1211 return 0;
1212 }
Stefan Roese7770ce42005-08-02 10:05:21 +02001213
Stefan Roesec157d8e2005-08-01 16:41:48 +02001214#ifdef DEBUG
1215 urb_priv.actual_length = 0;
Stefan Roese7770ce42005-08-02 10:05:21 +02001216 pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe));
Stefan Roesec157d8e2005-08-01 16:41:48 +02001217#endif
1218 if (!maxsize) {
1219 err("submit_common_message: pipesize for pipe %lx is zero",
Stefan Roese7770ce42005-08-02 10:05:21 +02001220 pipe);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001221 return -1;
1222 }
1223
Stefan Roese7770ce42005-08-02 10:05:21 +02001224 if (sohci_submit_job(dev, pipe, buffer, transfer_len, setup, interval) < 0) {
Stefan Roesec157d8e2005-08-01 16:41:48 +02001225 err("sohci_submit_job failed");
1226 return -1;
1227 }
1228
1229 /* allow more time for a BULK device to react - some are slow */
Stefan Roese7770ce42005-08-02 10:05:21 +02001230#define BULK_TO 5000 /* timeout in milliseconds */
Remy Bohmer9dbc3662008-10-10 10:23:22 +02001231 if (usb_pipebulk(pipe))
Stefan Roesec157d8e2005-08-01 16:41:48 +02001232 timeout = BULK_TO;
1233 else
1234 timeout = 100;
1235
1236 /* wait for it to complete */
1237 for (;;) {
1238 /* check whether the controller is done */
1239 stat = hc_interrupt();
1240 if (stat < 0) {
1241 stat = USB_ST_CRC_ERR;
1242 break;
1243 }
Stefan Roese7770ce42005-08-02 10:05:21 +02001244
1245 /* NOTE: since we are not interrupt driven in U-Boot and always
1246 * handle only one URB at a time, we cannot assume the
1247 * transaction finished on the first successful return from
1248 * hc_interrupt().. unless the flag for current URB is set,
1249 * meaning that all TD's to/from device got actually
1250 * transferred and processed. If the current URB is not
1251 * finished we need to re-iterate this loop so as
1252 * hc_interrupt() gets called again as there needs to be some
1253 * more TD's to process still */
1254 if ((stat >= 0) && (stat != 0xff) && (urb_finished)) {
Stefan Roesec157d8e2005-08-01 16:41:48 +02001255 /* 0xff is returned for an SF-interrupt */
1256 break;
1257 }
Stefan Roese7770ce42005-08-02 10:05:21 +02001258
Stefan Roesec157d8e2005-08-01 16:41:48 +02001259 if (--timeout) {
Mike Frysinger5b84dd62012-03-05 13:47:00 +00001260 mdelay(1);
Stefan Roese7770ce42005-08-02 10:05:21 +02001261 if (!urb_finished)
1262 dbg("\%");
1263
Stefan Roesec157d8e2005-08-01 16:41:48 +02001264 } else {
1265 err("CTL:TIMEOUT ");
Stefan Roese7770ce42005-08-02 10:05:21 +02001266 dbg("submit_common_msg: TO status %x\n", stat);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001267 stat = USB_ST_CRC_ERR;
Stefan Roese7770ce42005-08-02 10:05:21 +02001268 urb_finished = 1;
Stefan Roesec157d8e2005-08-01 16:41:48 +02001269 break;
1270 }
1271 }
Stefan Roese7770ce42005-08-02 10:05:21 +02001272#if 0
Stefan Roesec157d8e2005-08-01 16:41:48 +02001273 /* we got an Root Hub Status Change interrupt */
1274 if (got_rhsc) {
1275#ifdef DEBUG
Stefan Roese7770ce42005-08-02 10:05:21 +02001276 ohci_dump_roothub (&gohci, 1);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001277#endif
1278 got_rhsc = 0;
1279 /* abuse timeout */
1280 timeout = rh_check_port_status(&gohci);
1281 if (timeout >= 0) {
Stefan Roese7770ce42005-08-02 10:05:21 +02001282#if 0 /* this does nothing useful, but leave it here in case that changes */
Stefan Roesec157d8e2005-08-01 16:41:48 +02001283 /* the called routine adds 1 to the passed value */
1284 usb_hub_port_connect_change(gohci.rh.dev, timeout - 1);
1285#endif
1286 /*
1287 * XXX
1288 * This is potentially dangerous because it assumes
1289 * that only one device is ever plugged in!
1290 */
1291 devgone = dev;
1292 }
1293 }
Stefan Roese7770ce42005-08-02 10:05:21 +02001294#endif
Stefan Roesec157d8e2005-08-01 16:41:48 +02001295
1296 dev->status = stat;
1297 dev->act_len = transfer_len;
1298
1299#ifdef DEBUG
Stefan Roese7770ce42005-08-02 10:05:21 +02001300 pkt_print(dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", usb_pipein(pipe));
Stefan Roesec157d8e2005-08-01 16:41:48 +02001301#endif
1302
1303 /* free TDs in urb_priv */
Stefan Roese7770ce42005-08-02 10:05:21 +02001304 urb_free_priv (&urb_priv);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001305 return 0;
1306}
1307
1308/* submit routines called from usb.c */
1309int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
Stefan Roese7770ce42005-08-02 10:05:21 +02001310 int transfer_len)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001311{
1312 info("submit_bulk_msg");
1313 return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0);
1314}
1315
1316int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
Stefan Roese7770ce42005-08-02 10:05:21 +02001317 int transfer_len, struct devrequest *setup)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001318{
1319 int maxsize = usb_maxpacket(dev, pipe);
1320
1321 info("submit_control_msg");
1322#ifdef DEBUG
1323 urb_priv.actual_length = 0;
Stefan Roese7770ce42005-08-02 10:05:21 +02001324 pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe));
Stefan Roesec157d8e2005-08-01 16:41:48 +02001325#endif
1326 if (!maxsize) {
1327 err("submit_control_message: pipesize for pipe %lx is zero",
Stefan Roese7770ce42005-08-02 10:05:21 +02001328 pipe);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001329 return -1;
1330 }
1331 if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) {
1332 gohci.rh.dev = dev;
1333 /* root hub - redirect */
1334 return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len,
Stefan Roese7770ce42005-08-02 10:05:21 +02001335 setup);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001336 }
1337
1338 return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0);
1339}
1340
1341int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
Stefan Roese7770ce42005-08-02 10:05:21 +02001342 int transfer_len, int interval)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001343{
1344 info("submit_int_msg");
1345 return -1;
1346}
1347
1348/*-------------------------------------------------------------------------*
1349 * HC functions
1350 *-------------------------------------------------------------------------*/
1351
1352/* reset the HC and BUS */
1353
Stefan Roese7770ce42005-08-02 10:05:21 +02001354static int hc_reset (ohci_t *ohci)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001355{
1356 int timeout = 30;
Stefan Roese7770ce42005-08-02 10:05:21 +02001357 int smm_timeout = 50; /* 0,5 sec */
Stefan Roesec157d8e2005-08-01 16:41:48 +02001358
Stefan Roese7770ce42005-08-02 10:05:21 +02001359 if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */
1360 writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */
Stefan Roesec157d8e2005-08-01 16:41:48 +02001361 info("USB HC TakeOver from SMM");
Stefan Roese7770ce42005-08-02 10:05:21 +02001362 while (readl (&ohci->regs->control) & OHCI_CTRL_IR) {
Mike Frysinger5b84dd62012-03-05 13:47:00 +00001363 mdelay (10);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001364 if (--smm_timeout == 0) {
1365 err("USB HC TakeOver failed!");
1366 return -1;
1367 }
1368 }
1369 }
1370
1371 /* Disable HC interrupts */
Stefan Roese7770ce42005-08-02 10:05:21 +02001372 writel (OHCI_INTR_MIE, &ohci->regs->intrdisable);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001373
1374 dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;",
Stefan Roese7770ce42005-08-02 10:05:21 +02001375 ohci->slot_name,
1376 readl (&ohci->regs->control));
Stefan Roesec157d8e2005-08-01 16:41:48 +02001377
1378 /* Reset USB (needed by some controllers) */
1379 ohci->hc_control = 0;
Stefan Roese7770ce42005-08-02 10:05:21 +02001380 writel (ohci->hc_control, &ohci->regs->control);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001381
1382 /* HC Reset requires max 10 us delay */
Stefan Roese7770ce42005-08-02 10:05:21 +02001383 writel (OHCI_HCR, &ohci->regs->cmdstatus);
1384 while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) {
Stefan Roesec157d8e2005-08-01 16:41:48 +02001385 if (--timeout == 0) {
1386 err("USB HC reset timed out!");
1387 return -1;
1388 }
Stefan Roese7770ce42005-08-02 10:05:21 +02001389 udelay (1);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001390 }
1391 return 0;
1392}
1393
1394/*-------------------------------------------------------------------------*/
1395
1396/* Start an OHCI controller, set the BUS operational
1397 * enable interrupts
1398 * connect the virtual root hub */
1399
Stefan Roese7770ce42005-08-02 10:05:21 +02001400static int hc_start (ohci_t * ohci)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001401{
1402 __u32 mask;
1403 unsigned int fminterval;
1404
1405 ohci->disabled = 1;
1406
1407 /* Tell the controller where the control and bulk lists are
1408 * The lists are empty now. */
1409
Stefan Roese7770ce42005-08-02 10:05:21 +02001410 writel (0, &ohci->regs->ed_controlhead);
1411 writel (0, &ohci->regs->ed_bulkhead);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001412
Stefan Roese7770ce42005-08-02 10:05:21 +02001413 writel ((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */
Stefan Roesec157d8e2005-08-01 16:41:48 +02001414
1415 fminterval = 0x2edf;
Stefan Roese7770ce42005-08-02 10:05:21 +02001416 writel ((fminterval * 9) / 10, &ohci->regs->periodicstart);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001417 fminterval |= ((((fminterval - 210) * 6) / 7) << 16);
Stefan Roese7770ce42005-08-02 10:05:21 +02001418 writel (fminterval, &ohci->regs->fminterval);
1419 writel (0x628, &ohci->regs->lsthresh);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001420
1421 /* start controller operations */
1422 ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER;
1423 ohci->disabled = 0;
Stefan Roese7770ce42005-08-02 10:05:21 +02001424 writel (ohci->hc_control, &ohci->regs->control);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001425
1426 /* disable all interrupts */
1427 mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD |
Stefan Roese7770ce42005-08-02 10:05:21 +02001428 OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC |
1429 OHCI_INTR_OC | OHCI_INTR_MIE);
1430 writel (mask, &ohci->regs->intrdisable);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001431 /* clear all interrupts */
1432 mask &= ~OHCI_INTR_MIE;
Stefan Roese7770ce42005-08-02 10:05:21 +02001433 writel (mask, &ohci->regs->intrstatus);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001434 /* Choose the interrupts we care about now - but w/o MIE */
1435 mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO;
Stefan Roese7770ce42005-08-02 10:05:21 +02001436 writel (mask, &ohci->regs->intrenable);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001437
1438#ifdef OHCI_USE_NPS
1439 /* required for AMD-756 and some Mac platforms */
Stefan Roese7770ce42005-08-02 10:05:21 +02001440 writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM,
1441 &ohci->regs->roothub.a);
1442 writel (RH_HS_LPSC, &ohci->regs->roothub.status);
1443#endif /* OHCI_USE_NPS */
Stefan Roesec157d8e2005-08-01 16:41:48 +02001444
Stefan Roesec157d8e2005-08-01 16:41:48 +02001445 /* POTPGT delay is bits 24-31, in 2 ms units. */
Stefan Roese7770ce42005-08-02 10:05:21 +02001446 mdelay ((roothub_a (ohci) >> 23) & 0x1fe);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001447
1448 /* connect the virtual root hub */
1449 ohci->rh.devnum = 0;
1450
1451 return 0;
1452}
1453
1454/*-------------------------------------------------------------------------*/
1455
1456/* an interrupt happens */
1457
Stefan Roese7770ce42005-08-02 10:05:21 +02001458static int
1459hc_interrupt (void)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001460{
1461 ohci_t *ohci = &gohci;
1462 struct ohci_regs *regs = ohci->regs;
1463 int ints;
1464 int stat = -1;
1465
Stefan Roese7770ce42005-08-02 10:05:21 +02001466 if ((ohci->hcca->done_head != 0) &&
1467 !(ohci_cpu_to_le32(ohci->hcca->done_head) & 0x01)) {
1468
1469 ints = OHCI_INTR_WDH;
1470
1471 } else if ((ints = readl (&regs->intrstatus)) == ~(u32)0) {
1472 ohci->disabled++;
1473 err ("%s device removed!", ohci->slot_name);
1474 return -1;
1475
1476 } else if ((ints &= readl (&regs->intrenable)) == 0) {
1477 dbg("hc_interrupt: returning..\n");
1478 return 0xff;
Stefan Roesec157d8e2005-08-01 16:41:48 +02001479 }
1480
1481 /* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */
1482
1483 if (ints & OHCI_INTR_RHSC) {
1484 got_rhsc = 1;
Stefan Roese7770ce42005-08-02 10:05:21 +02001485 stat = 0xff;
Stefan Roesec157d8e2005-08-01 16:41:48 +02001486 }
1487
1488 if (ints & OHCI_INTR_UE) {
1489 ohci->disabled++;
Stefan Roese7770ce42005-08-02 10:05:21 +02001490 err ("OHCI Unrecoverable Error, controller usb-%s disabled",
1491 ohci->slot_name);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001492 /* e.g. due to PCI Master/Target Abort */
1493
1494#ifdef DEBUG
Stefan Roese7770ce42005-08-02 10:05:21 +02001495 ohci_dump (ohci, 1);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001496#endif
1497 /* FIXME: be optimistic, hope that bug won't repeat often. */
1498 /* Make some non-interrupt context restart the controller. */
1499 /* Count and limit the retries though; either hardware or */
1500 /* software errors can go forever... */
Stefan Roese7770ce42005-08-02 10:05:21 +02001501 hc_reset (ohci);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001502 return -1;
1503 }
1504
1505 if (ints & OHCI_INTR_WDH) {
Stefan Roese7770ce42005-08-02 10:05:21 +02001506 writel (OHCI_INTR_WDH, &regs->intrdisable);
1507 stat = dl_done_list (&gohci, dl_reverse_done_list (&gohci));
1508 writel (OHCI_INTR_WDH, &regs->intrenable);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001509 }
1510
1511 if (ints & OHCI_INTR_SO) {
1512 dbg("USB Schedule overrun\n");
Stefan Roese7770ce42005-08-02 10:05:21 +02001513 writel (OHCI_INTR_SO, &regs->intrenable);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001514 stat = -1;
1515 }
1516
1517 /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */
1518 if (ints & OHCI_INTR_SF) {
Stefan Roese7770ce42005-08-02 10:05:21 +02001519 unsigned int frame = ohci_cpu_to_le16 (ohci->hcca->frame_no) & 1;
Mike Frysinger5b84dd62012-03-05 13:47:00 +00001520 mdelay(1);
Stefan Roese7770ce42005-08-02 10:05:21 +02001521 writel (OHCI_INTR_SF, &regs->intrdisable);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001522 if (ohci->ed_rm_list[frame] != NULL)
Stefan Roese7770ce42005-08-02 10:05:21 +02001523 writel (OHCI_INTR_SF, &regs->intrenable);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001524 stat = 0xff;
1525 }
1526
Stefan Roese7770ce42005-08-02 10:05:21 +02001527 writel (ints, &regs->intrstatus);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001528 return stat;
1529}
1530
1531/*-------------------------------------------------------------------------*/
1532
1533/*-------------------------------------------------------------------------*/
1534
1535/* De-allocate all resources.. */
1536
Stefan Roese7770ce42005-08-02 10:05:21 +02001537static void hc_release_ohci (ohci_t *ohci)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001538{
Stefan Roese7770ce42005-08-02 10:05:21 +02001539 dbg ("USB HC release ohci usb-%s", ohci->slot_name);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001540
1541 if (!ohci->disabled)
Stefan Roese7770ce42005-08-02 10:05:21 +02001542 hc_reset (ohci);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001543}
1544
1545/*-------------------------------------------------------------------------*/
1546
1547/*
1548 * low level initalisation routine, called from usb.c
1549 */
1550static char ohci_inited = 0;
1551
Troy Kisky06d513e2013-10-10 15:27:56 -07001552int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001553{
Stefan Roese7770ce42005-08-02 10:05:21 +02001554 memset (&gohci, 0, sizeof (ohci_t));
1555 memset (&urb_priv, 0, sizeof (urb_priv_t));
Stefan Roesec157d8e2005-08-01 16:41:48 +02001556
1557 /* align the storage */
Stefan Roese7770ce42005-08-02 10:05:21 +02001558 if ((__u32)&ghcca[0] & 0xff) {
Stefan Roesec157d8e2005-08-01 16:41:48 +02001559 err("HCCA not aligned!!");
1560 return -1;
1561 }
1562 phcca = &ghcca[0];
1563 info("aligned ghcca %p", phcca);
1564 memset(&ohci_dev, 0, sizeof(struct ohci_device));
Stefan Roese7770ce42005-08-02 10:05:21 +02001565 if ((__u32)&ohci_dev.ed[0] & 0x7) {
Stefan Roesec157d8e2005-08-01 16:41:48 +02001566 err("EDs not aligned!!");
1567 return -1;
1568 }
1569 memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1));
Stefan Roese7770ce42005-08-02 10:05:21 +02001570 if ((__u32)gtd & 0x7) {
Stefan Roesec157d8e2005-08-01 16:41:48 +02001571 err("TDs not aligned!!");
1572 return -1;
1573 }
1574 ptd = gtd;
1575 gohci.hcca = phcca;
Stefan Roese7770ce42005-08-02 10:05:21 +02001576 memset (phcca, 0, sizeof (struct ohci_hcca));
Stefan Roesec157d8e2005-08-01 16:41:48 +02001577
1578 gohci.disabled = 1;
1579 gohci.sleeping = 0;
1580 gohci.irq = -1;
Stefan Roese887e2ec2006-09-07 11:51:23 +02001581#if defined(CONFIG_440EP)
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001582 gohci.regs = (struct ohci_regs *)(CONFIG_SYS_PERIPHERAL_BASE | 0x1000);
1583#elif defined(CONFIG_440EPX) || defined(CONFIG_SYS_USB_HOST)
1584 gohci.regs = (struct ohci_regs *)(CONFIG_SYS_USB_HOST);
Stefan Roese887e2ec2006-09-07 11:51:23 +02001585#endif
Stefan Roesec157d8e2005-08-01 16:41:48 +02001586
1587 gohci.flags = 0;
1588 gohci.slot_name = "ppc440";
1589
Stefan Roese7770ce42005-08-02 10:05:21 +02001590 if (hc_reset (&gohci) < 0) {
1591 hc_release_ohci (&gohci);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001592 return -1;
1593 }
1594
Stefan Roese7770ce42005-08-02 10:05:21 +02001595 if (hc_start (&gohci) < 0) {
1596 err ("can't start usb-%s", gohci.slot_name);
1597 hc_release_ohci (&gohci);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001598 return -1;
1599 }
Stefan Roese7770ce42005-08-02 10:05:21 +02001600
Stefan Roesec157d8e2005-08-01 16:41:48 +02001601#ifdef DEBUG
Stefan Roese7770ce42005-08-02 10:05:21 +02001602 ohci_dump (&gohci, 1);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001603#endif
1604 ohci_inited = 1;
Stefan Roese7770ce42005-08-02 10:05:21 +02001605 urb_finished = 1;
Stefan Roesec157d8e2005-08-01 16:41:48 +02001606
Stefan Roesec157d8e2005-08-01 16:41:48 +02001607 return 0;
1608}
1609
Lucas Stachc7e3b2b2012-09-26 00:14:34 +02001610int usb_lowlevel_stop(int index)
Stefan Roesec157d8e2005-08-01 16:41:48 +02001611{
1612 /* this gets called really early - before the controller has */
1613 /* even been initialized! */
1614 if (!ohci_inited)
1615 return 0;
1616 /* TODO release any interrupts, etc. */
1617 /* call hc_release_ohci() here ? */
Stefan Roese7770ce42005-08-02 10:05:21 +02001618 hc_reset (&gohci);
Stefan Roesec157d8e2005-08-01 16:41:48 +02001619 return 0;
1620}
1621
Stefan Roese7770ce42005-08-02 10:05:21 +02001622#endif /* CONFIG_USB_OHCI */