blob: 97a7edeb53998713985a626faac565779d89b985 [file] [log] [blame]
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001/*
Zhang Wei8d15efa2007-06-06 10:08:14 +02002 * URB OHCI HCD (Host Controller Driver) for USB on the AT91RM9200 and PCI bus.
3 *
4 * Interrupt support is added. Now, it has been tested
5 * on ULI1575 chip and works well with USB keyboard.
6 *
7 * (C) Copyright 2007
8 * Zhang Wei, Freescale Semiconductor, Inc. <wei.zhang@freescale.com>
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02009 *
10 * (C) Copyright 2003
Detlev Zundelf1b3f2b2009-05-13 10:54:10 +020011 * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020012 *
13 * Note: Much of this code has been derived from Linux 2.4
14 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
15 * (C) Copyright 2000-2002 David Brownell
16 *
17 * Modified for the MP2USB by (C) Copyright 2005 Eric Benard
18 * ebenard@eukrea.com - based on s3c24x0's driver
19 *
Wolfgang Denkd79de1d2013-07-08 09:37:19 +020020 * SPDX-License-Identifier: GPL-2.0+
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020021 */
22/*
23 * IMPORTANT NOTES
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +020024 * 1 - Read doc/README.generic_usb_ohci
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020025 * 2 - this driver is intended for use with USB Mass Storage Devices
Zhang Wei8d15efa2007-06-06 10:08:14 +020026 * (BBB) and USB keyboard. There is NO support for Isochronous pipes!
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +020027 * 2 - when running on a PQFP208 AT91RM9200, define CONFIG_AT91C_PQFP_UHPBUG
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020028 * to activate workaround for bug #41 or this driver will NOT work!
29 */
30
31#include <common.h>
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +020032#include <asm/byteorder.h>
33
34#if defined(CONFIG_PCI_OHCI)
Zhang Wei8d15efa2007-06-06 10:08:14 +020035# include <pci.h>
Sergei Poselenov0b4570f2008-05-22 01:15:53 +020036#if !defined(CONFIG_PCI_OHCI_DEVNO)
37#define CONFIG_PCI_OHCI_DEVNO 0
38#endif
Markus Klotzbuecheraa219212006-05-30 16:56:14 +020039#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020040
41#include <malloc.h>
42#include <usb.h>
Jean-Christophe PLAGNIOL-VILLARD8f6bcf42009-04-03 12:46:58 +020043
44#include "ohci.h"
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020045
Wolfgang Denkdcac38b2007-11-19 12:59:14 +010046#ifdef CONFIG_AT91RM9200
47#include <asm/arch/hardware.h> /* needed for AT91_USB_HOST_BASE */
48#endif
49
Masahiro Yamada7a5b2922014-11-06 14:59:35 +090050#if defined(CONFIG_CPU_ARM920T) || \
kevin.morfitt@fearnside-systems.co.uke0d81312009-11-17 18:30:34 +090051 defined(CONFIG_S3C24X0) || \
Markus Klotzbuecherd209de62006-11-27 11:46:46 +010052 defined(CONFIG_440EP) || \
Zhang Wei8d15efa2007-06-06 10:08:14 +020053 defined(CONFIG_PCI_OHCI) || \
Stefan Roese41e74eb2008-03-05 12:29:32 +010054 defined(CONFIG_MPC5200) || \
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020055 defined(CONFIG_SYS_OHCI_USE_NPS)
Markus Klotzbuecher98095512006-05-23 10:33:11 +020056# define OHCI_USE_NPS /* force NoPowerSwitching mode */
57#endif
58
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020059#undef OHCI_VERBOSE_DEBUG /* not always helpful */
Markus Klotzbuecherd209de62006-11-27 11:46:46 +010060#undef DEBUG
61#undef SHOW_INFO
62#undef OHCI_FILL_TRACE
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020063
64/* For initializing controller (mask in an HCFS mode too) */
65#define OHCI_CONTROL_INIT \
66 (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE
67
Zhang Wei8d15efa2007-06-06 10:08:14 +020068#ifdef CONFIG_PCI_OHCI
69static struct pci_device_id ohci_pci_ids[] = {
70 {0x10b9, 0x5237}, /* ULI1575 PCI OHCI module ids */
David Saadae3b28422007-09-17 17:04:47 +020071 {0x1033, 0x0035}, /* NEC PCI OHCI module ids */
TsiChung Liew923f43a2008-01-11 20:42:58 -060072 {0x1131, 0x1561}, /* Philips 1561 PCI OHCI module ids */
Zhang Wei8d15efa2007-06-06 10:08:14 +020073 /* Please add supported PCI OHCI controller ids here */
74 {0, 0}
75};
76#endif
77
Yuri Tikhonov11af42c2008-09-04 11:19:05 +020078#ifdef CONFIG_PCI_EHCI_DEVNO
79static struct pci_device_id ehci_pci_ids[] = {
80 {0x1131, 0x1562}, /* Philips 1562 PCI EHCI module ids */
81 /* Please add supported PCI EHCI controller ids here */
82 {0, 0}
83};
84#endif
85
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020086#ifdef DEBUG
87#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg)
88#else
Remy Bohmer172a1132008-09-16 14:55:43 +020089#define dbg(format, arg...) do {} while (0)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020090#endif /* DEBUG */
91#define err(format, arg...) printf("ERROR: " format "\n", ## arg)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020092#ifdef SHOW_INFO
93#define info(format, arg...) printf("INFO: " format "\n", ## arg)
94#else
Remy Bohmer172a1132008-09-16 14:55:43 +020095#define info(format, arg...) do {} while (0)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020096#endif
97
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020098#ifdef CONFIG_SYS_OHCI_BE_CONTROLLER
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +020099# define m16_swap(x) cpu_to_be16(x)
100# define m32_swap(x) cpu_to_be32(x)
Markus Klotzbuecherd209de62006-11-27 11:46:46 +0100101#else
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +0200102# define m16_swap(x) cpu_to_le16(x)
103# define m32_swap(x) cpu_to_le32(x)
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200104#endif /* CONFIG_SYS_OHCI_BE_CONTROLLER */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200105
106/* global ohci_t */
107static ohci_t gohci;
108/* this must be aligned to a 256 byte boundary */
109struct ohci_hcca ghcca[1];
110/* a pointer to the aligned storage */
111struct ohci_hcca *phcca;
112/* this allocates EDs for all possible endpoints */
113struct ohci_device ohci_dev;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200114/* device which was disconnected */
115struct usb_device *devgone;
116
Remy Bohmer172a1132008-09-16 14:55:43 +0200117static inline u32 roothub_a(struct ohci *hc)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500118 { return ohci_readl(&hc->regs->roothub.a); }
Remy Bohmer172a1132008-09-16 14:55:43 +0200119static inline u32 roothub_b(struct ohci *hc)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500120 { return ohci_readl(&hc->regs->roothub.b); }
Remy Bohmer172a1132008-09-16 14:55:43 +0200121static inline u32 roothub_status(struct ohci *hc)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500122 { return ohci_readl(&hc->regs->roothub.status); }
Remy Bohmer172a1132008-09-16 14:55:43 +0200123static inline u32 roothub_portstatus(struct ohci *hc, int i)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500124 { return ohci_readl(&hc->regs->roothub.portstatus[i]); }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200125
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200126/* forward declaration */
Remy Bohmer172a1132008-09-16 14:55:43 +0200127static int hc_interrupt(void);
128static void td_submit_job(struct usb_device *dev, unsigned long pipe,
129 void *buffer, int transfer_len,
130 struct devrequest *setup, urb_priv_t *urb,
131 int interval);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200132
133/*-------------------------------------------------------------------------*
134 * URB support functions
135 *-------------------------------------------------------------------------*/
136
137/* free HCD-private data associated with this URB */
138
Remy Bohmer172a1132008-09-16 14:55:43 +0200139static void urb_free_priv(urb_priv_t *urb)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200140{
141 int i;
142 int last;
Remy Bohmer172a1132008-09-16 14:55:43 +0200143 struct td *td;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200144
145 last = urb->length - 1;
146 if (last >= 0) {
147 for (i = 0; i <= last; i++) {
148 td = urb->td[i];
149 if (td) {
150 td->usb_dev = NULL;
151 urb->td[i] = NULL;
152 }
153 }
154 }
Zhang Wei8d15efa2007-06-06 10:08:14 +0200155 free(urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200156}
157
158/*-------------------------------------------------------------------------*/
159
160#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +0200161static int sohci_get_current_frame_number(struct usb_device *dev);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200162
163/* debug| print the main components of an URB
164 * small: 0) header + data packets 1) just header */
165
Remy Bohmer172a1132008-09-16 14:55:43 +0200166static void pkt_print(urb_priv_t *purb, struct usb_device *dev,
167 unsigned long pipe, void *buffer, int transfer_len,
168 struct devrequest *setup, char *str, int small)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200169{
Remy Bohmer172a1132008-09-16 14:55:43 +0200170 dbg("%s URB:[%4x] dev:%2lu,ep:%2lu-%c,type:%s,len:%d/%d stat:%#lx",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200171 str,
Remy Bohmer172a1132008-09-16 14:55:43 +0200172 sohci_get_current_frame_number(dev),
173 usb_pipedevice(pipe),
174 usb_pipeendpoint(pipe),
175 usb_pipeout(pipe)? 'O': 'I',
176 usb_pipetype(pipe) < 2 ? \
177 (usb_pipeint(pipe)? "INTR": "ISOC"): \
178 (usb_pipecontrol(pipe)? "CTRL": "BULK"),
Zhang Wei8d15efa2007-06-06 10:08:14 +0200179 (purb ? purb->actual_length : 0),
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200180 transfer_len, dev->status);
181#ifdef OHCI_VERBOSE_DEBUG
182 if (!small) {
183 int i, len;
184
Remy Bohmer172a1132008-09-16 14:55:43 +0200185 if (usb_pipecontrol(pipe)) {
186 printf(__FILE__ ": cmd(8):");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200187 for (i = 0; i < 8 ; i++)
Remy Bohmer172a1132008-09-16 14:55:43 +0200188 printf(" %02x", ((__u8 *) setup) [i]);
189 printf("\n");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200190 }
191 if (transfer_len > 0 && buffer) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200192 printf(__FILE__ ": data(%d/%d):",
Zhang Wei8d15efa2007-06-06 10:08:14 +0200193 (purb ? purb->actual_length : 0),
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200194 transfer_len);
Remy Bohmer172a1132008-09-16 14:55:43 +0200195 len = usb_pipeout(pipe)? transfer_len:
Zhang Wei8d15efa2007-06-06 10:08:14 +0200196 (purb ? purb->actual_length : 0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200197 for (i = 0; i < 16 && i < len; i++)
Remy Bohmer172a1132008-09-16 14:55:43 +0200198 printf(" %02x", ((__u8 *) buffer) [i]);
199 printf("%s\n", i < len? "...": "");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200200 }
201 }
202#endif
203}
204
Remy Bohmer172a1132008-09-16 14:55:43 +0200205/* just for debugging; prints non-empty branches of the int ed tree
206 * inclusive iso eds */
207void ep_print_int_eds(ohci_t *ohci, char *str)
208{
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200209 int i, j;
Remy Bohmer172a1132008-09-16 14:55:43 +0200210 __u32 *ed_p;
211 for (i = 0; i < 32; i++) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200212 j = 5;
213 ed_p = &(ohci->hcca->int_table [i]);
214 if (*ed_p == 0)
215 continue;
Remy Bohmer172a1132008-09-16 14:55:43 +0200216 printf(__FILE__ ": %s branch int %2d(%2x):", str, i, i);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200217 while (*ed_p != 0 && j--) {
218 ed_t *ed = (ed_t *)m32_swap(ed_p);
Remy Bohmer172a1132008-09-16 14:55:43 +0200219 printf(" ed: %4x;", ed->hwINFO);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200220 ed_p = &ed->hwNextED;
221 }
Remy Bohmer172a1132008-09-16 14:55:43 +0200222 printf("\n");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200223 }
224}
225
Remy Bohmer172a1132008-09-16 14:55:43 +0200226static void ohci_dump_intr_mask(char *label, __u32 mask)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200227{
Remy Bohmer172a1132008-09-16 14:55:43 +0200228 dbg("%s: 0x%08x%s%s%s%s%s%s%s%s%s",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200229 label,
230 mask,
231 (mask & OHCI_INTR_MIE) ? " MIE" : "",
232 (mask & OHCI_INTR_OC) ? " OC" : "",
233 (mask & OHCI_INTR_RHSC) ? " RHSC" : "",
234 (mask & OHCI_INTR_FNO) ? " FNO" : "",
235 (mask & OHCI_INTR_UE) ? " UE" : "",
236 (mask & OHCI_INTR_RD) ? " RD" : "",
237 (mask & OHCI_INTR_SF) ? " SF" : "",
238 (mask & OHCI_INTR_WDH) ? " WDH" : "",
239 (mask & OHCI_INTR_SO) ? " SO" : ""
240 );
241}
242
Remy Bohmer172a1132008-09-16 14:55:43 +0200243static void maybe_print_eds(char *label, __u32 value)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200244{
245 ed_t *edp = (ed_t *)value;
246
247 if (value) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200248 dbg("%s %08x", label, value);
249 dbg("%08x", edp->hwINFO);
250 dbg("%08x", edp->hwTailP);
251 dbg("%08x", edp->hwHeadP);
252 dbg("%08x", edp->hwNextED);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200253 }
254}
255
Remy Bohmer172a1132008-09-16 14:55:43 +0200256static char *hcfs2string(int state)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200257{
258 switch (state) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200259 case OHCI_USB_RESET: return "reset";
260 case OHCI_USB_RESUME: return "resume";
261 case OHCI_USB_OPER: return "operational";
262 case OHCI_USB_SUSPEND: return "suspend";
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200263 }
264 return "?";
265}
266
267/* dump control and status registers */
Remy Bohmer172a1132008-09-16 14:55:43 +0200268static void ohci_dump_status(ohci_t *controller)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200269{
270 struct ohci_regs *regs = controller->regs;
271 __u32 temp;
272
Becky Bruce4abaacb2010-06-30 13:05:44 -0500273 temp = ohci_readl(&regs->revision) & 0xff;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200274 if (temp != 0x10)
Remy Bohmer172a1132008-09-16 14:55:43 +0200275 dbg("spec %d.%d", (temp >> 4), (temp & 0x0f));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200276
Becky Bruce4abaacb2010-06-30 13:05:44 -0500277 temp = ohci_readl(&regs->control);
Remy Bohmer172a1132008-09-16 14:55:43 +0200278 dbg("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200279 (temp & OHCI_CTRL_RWE) ? " RWE" : "",
280 (temp & OHCI_CTRL_RWC) ? " RWC" : "",
281 (temp & OHCI_CTRL_IR) ? " IR" : "",
Remy Bohmer172a1132008-09-16 14:55:43 +0200282 hcfs2string(temp & OHCI_CTRL_HCFS),
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200283 (temp & OHCI_CTRL_BLE) ? " BLE" : "",
284 (temp & OHCI_CTRL_CLE) ? " CLE" : "",
285 (temp & OHCI_CTRL_IE) ? " IE" : "",
286 (temp & OHCI_CTRL_PLE) ? " PLE" : "",
287 temp & OHCI_CTRL_CBSR
288 );
289
Becky Bruce4abaacb2010-06-30 13:05:44 -0500290 temp = ohci_readl(&regs->cmdstatus);
Remy Bohmer172a1132008-09-16 14:55:43 +0200291 dbg("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200292 (temp & OHCI_SOC) >> 16,
293 (temp & OHCI_OCR) ? " OCR" : "",
294 (temp & OHCI_BLF) ? " BLF" : "",
295 (temp & OHCI_CLF) ? " CLF" : "",
296 (temp & OHCI_HCR) ? " HCR" : ""
297 );
298
Becky Bruce4abaacb2010-06-30 13:05:44 -0500299 ohci_dump_intr_mask("intrstatus", ohci_readl(&regs->intrstatus));
300 ohci_dump_intr_mask("intrenable", ohci_readl(&regs->intrenable));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200301
Becky Bruce4abaacb2010-06-30 13:05:44 -0500302 maybe_print_eds("ed_periodcurrent",
303 ohci_readl(&regs->ed_periodcurrent));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200304
Becky Bruce4abaacb2010-06-30 13:05:44 -0500305 maybe_print_eds("ed_controlhead", ohci_readl(&regs->ed_controlhead));
306 maybe_print_eds("ed_controlcurrent",
307 ohci_readl(&regs->ed_controlcurrent));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200308
Becky Bruce4abaacb2010-06-30 13:05:44 -0500309 maybe_print_eds("ed_bulkhead", ohci_readl(&regs->ed_bulkhead));
310 maybe_print_eds("ed_bulkcurrent", ohci_readl(&regs->ed_bulkcurrent));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200311
Becky Bruce4abaacb2010-06-30 13:05:44 -0500312 maybe_print_eds("donehead", ohci_readl(&regs->donehead));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200313}
314
Remy Bohmer172a1132008-09-16 14:55:43 +0200315static void ohci_dump_roothub(ohci_t *controller, int verbose)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200316{
317 __u32 temp, ndp, i;
318
Remy Bohmer172a1132008-09-16 14:55:43 +0200319 temp = roothub_a(controller);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200320 ndp = (temp & RH_A_NDP);
321#ifdef CONFIG_AT91C_PQFP_UHPBUG
322 ndp = (ndp == 2) ? 1:0;
323#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200324 if (verbose) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200325 dbg("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200326 ((temp & RH_A_POTPGT) >> 24) & 0xff,
327 (temp & RH_A_NOCP) ? " NOCP" : "",
328 (temp & RH_A_OCPM) ? " OCPM" : "",
329 (temp & RH_A_DT) ? " DT" : "",
330 (temp & RH_A_NPS) ? " NPS" : "",
331 (temp & RH_A_PSM) ? " PSM" : "",
332 ndp
333 );
Remy Bohmer172a1132008-09-16 14:55:43 +0200334 temp = roothub_b(controller);
335 dbg("roothub.b: %08x PPCM=%04x DR=%04x",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200336 temp,
337 (temp & RH_B_PPCM) >> 16,
338 (temp & RH_B_DR)
339 );
Remy Bohmer172a1132008-09-16 14:55:43 +0200340 temp = roothub_status(controller);
341 dbg("roothub.status: %08x%s%s%s%s%s%s",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200342 temp,
343 (temp & RH_HS_CRWE) ? " CRWE" : "",
344 (temp & RH_HS_OCIC) ? " OCIC" : "",
345 (temp & RH_HS_LPSC) ? " LPSC" : "",
346 (temp & RH_HS_DRWE) ? " DRWE" : "",
347 (temp & RH_HS_OCI) ? " OCI" : "",
348 (temp & RH_HS_LPS) ? " LPS" : ""
349 );
350 }
351
352 for (i = 0; i < ndp; i++) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200353 temp = roothub_portstatus(controller, i);
354 dbg("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200355 i,
356 temp,
357 (temp & RH_PS_PRSC) ? " PRSC" : "",
358 (temp & RH_PS_OCIC) ? " OCIC" : "",
359 (temp & RH_PS_PSSC) ? " PSSC" : "",
360 (temp & RH_PS_PESC) ? " PESC" : "",
361 (temp & RH_PS_CSC) ? " CSC" : "",
362
363 (temp & RH_PS_LSDA) ? " LSDA" : "",
364 (temp & RH_PS_PPS) ? " PPS" : "",
365 (temp & RH_PS_PRS) ? " PRS" : "",
366 (temp & RH_PS_POCI) ? " POCI" : "",
367 (temp & RH_PS_PSS) ? " PSS" : "",
368
369 (temp & RH_PS_PES) ? " PES" : "",
370 (temp & RH_PS_CCS) ? " CCS" : ""
371 );
372 }
373}
374
Remy Bohmer172a1132008-09-16 14:55:43 +0200375static void ohci_dump(ohci_t *controller, int verbose)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200376{
Remy Bohmer172a1132008-09-16 14:55:43 +0200377 dbg("OHCI controller usb-%s state", controller->slot_name);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200378
379 /* dumps some of the state we know about */
Remy Bohmer172a1132008-09-16 14:55:43 +0200380 ohci_dump_status(controller);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200381 if (verbose)
Remy Bohmer172a1132008-09-16 14:55:43 +0200382 ep_print_int_eds(controller, "hcca");
383 dbg("hcca frame #%04x", controller->hcca->frame_no);
384 ohci_dump_roothub(controller, 1);
Stefan Roese41e74eb2008-03-05 12:29:32 +0100385}
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200386#endif /* DEBUG */
387
388/*-------------------------------------------------------------------------*
389 * Interface functions (URB)
390 *-------------------------------------------------------------------------*/
391
392/* get a transfer request */
393
Zhang Wei8d15efa2007-06-06 10:08:14 +0200394int sohci_submit_job(urb_priv_t *urb, struct devrequest *setup)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200395{
396 ohci_t *ohci;
Remy Bohmer172a1132008-09-16 14:55:43 +0200397 ed_t *ed;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200398 urb_priv_t *purb_priv = urb;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200399 int i, size = 0;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200400 struct usb_device *dev = urb->dev;
401 unsigned long pipe = urb->pipe;
402 void *buffer = urb->transfer_buffer;
403 int transfer_len = urb->transfer_buffer_length;
404 int interval = urb->interval;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200405
406 ohci = &gohci;
407
408 /* when controller's hung, permit only roothub cleanup attempts
409 * such as powering down ports */
410 if (ohci->disabled) {
411 err("sohci_submit_job: EPIPE");
412 return -1;
413 }
Markus Klotzbuechere3af6d52007-03-26 11:21:05 +0200414
Remy Bohmer172a1132008-09-16 14:55:43 +0200415 /* we're about to begin a new transaction here so mark the
416 * URB unfinished */
Zhang Wei8d15efa2007-06-06 10:08:14 +0200417 urb->finished = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200418
419 /* every endpoint has a ed, locate and fill it */
Remy Bohmer172a1132008-09-16 14:55:43 +0200420 ed = ep_add_ed(dev, pipe, interval, 1);
421 if (!ed) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200422 err("sohci_submit_job: ENOMEM");
423 return -1;
424 }
425
426 /* for the private part of the URB we need the number of TDs (size) */
Remy Bohmer172a1132008-09-16 14:55:43 +0200427 switch (usb_pipetype(pipe)) {
428 case PIPE_BULK: /* one TD for every 4096 Byte */
429 size = (transfer_len - 1) / 4096 + 1;
430 break;
431 case PIPE_CONTROL:/* 1 TD for setup, 1 for ACK and 1 for every 4096 B */
432 size = (transfer_len == 0)? 2:
433 (transfer_len - 1) / 4096 + 3;
434 break;
435 case PIPE_INTERRUPT: /* 1 TD */
436 size = 1;
437 break;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200438 }
439
Zhang Wei8d15efa2007-06-06 10:08:14 +0200440 ed->purb = urb;
441
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200442 if (size >= (N_URB_TD - 1)) {
443 err("need %d TDs, only have %d", size, N_URB_TD);
444 return -1;
445 }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200446 purb_priv->pipe = pipe;
447
448 /* fill the private part of the URB */
449 purb_priv->length = size;
450 purb_priv->ed = ed;
451 purb_priv->actual_length = 0;
452
453 /* allocate the TDs */
454 /* note that td[0] was allocated in ep_add_ed */
455 for (i = 0; i < size; i++) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200456 purb_priv->td[i] = td_alloc(dev);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200457 if (!purb_priv->td[i]) {
458 purb_priv->length = i;
Remy Bohmer172a1132008-09-16 14:55:43 +0200459 urb_free_priv(purb_priv);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200460 err("sohci_submit_job: ENOMEM");
461 return -1;
462 }
463 }
464
465 if (ed->state == ED_NEW || (ed->state & ED_DEL)) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200466 urb_free_priv(purb_priv);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200467 err("sohci_submit_job: EINVAL");
468 return -1;
469 }
470
471 /* link the ed into a chain if is not already */
472 if (ed->state != ED_OPER)
Remy Bohmer172a1132008-09-16 14:55:43 +0200473 ep_link(ohci, ed);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200474
475 /* fill the TDs and link it to the ed */
Remy Bohmer172a1132008-09-16 14:55:43 +0200476 td_submit_job(dev, pipe, buffer, transfer_len,
477 setup, purb_priv, interval);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200478
479 return 0;
480}
481
Zhang Wei8d15efa2007-06-06 10:08:14 +0200482static inline int sohci_return_job(struct ohci *hc, urb_priv_t *urb)
483{
484 struct ohci_regs *regs = hc->regs;
485
Remy Bohmer172a1132008-09-16 14:55:43 +0200486 switch (usb_pipetype(urb->pipe)) {
Zhang Wei8d15efa2007-06-06 10:08:14 +0200487 case PIPE_INTERRUPT:
488 /* implicitly requeued */
489 if (urb->dev->irq_handle &&
490 (urb->dev->irq_act_len = urb->actual_length)) {
Becky Bruce4abaacb2010-06-30 13:05:44 -0500491 ohci_writel(OHCI_INTR_WDH, &regs->intrenable);
492 ohci_readl(&regs->intrenable); /* PCI posting flush */
Zhang Wei8d15efa2007-06-06 10:08:14 +0200493 urb->dev->irq_handle(urb->dev);
Becky Bruce4abaacb2010-06-30 13:05:44 -0500494 ohci_writel(OHCI_INTR_WDH, &regs->intrdisable);
495 ohci_readl(&regs->intrdisable); /* PCI posting flush */
Zhang Wei8d15efa2007-06-06 10:08:14 +0200496 }
497 urb->actual_length = 0;
Remy Bohmer172a1132008-09-16 14:55:43 +0200498 td_submit_job(
Zhang Wei8d15efa2007-06-06 10:08:14 +0200499 urb->dev,
500 urb->pipe,
501 urb->transfer_buffer,
502 urb->transfer_buffer_length,
503 NULL,
504 urb,
505 urb->interval);
506 break;
507 case PIPE_CONTROL:
508 case PIPE_BULK:
509 break;
510 default:
511 return 0;
512 }
513 return 1;
514}
515
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200516/*-------------------------------------------------------------------------*/
517
518#ifdef DEBUG
519/* tell us the current USB frame number */
520
Remy Bohmer172a1132008-09-16 14:55:43 +0200521static int sohci_get_current_frame_number(struct usb_device *usb_dev)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200522{
523 ohci_t *ohci = &gohci;
524
Remy Bohmer172a1132008-09-16 14:55:43 +0200525 return m16_swap(ohci->hcca->frame_no);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200526}
527#endif
528
529/*-------------------------------------------------------------------------*
530 * ED handling functions
531 *-------------------------------------------------------------------------*/
532
Zhang Wei8d15efa2007-06-06 10:08:14 +0200533/* search for the right branch to insert an interrupt ed into the int tree
534 * do some load ballancing;
535 * returns the branch and
536 * sets the interval to interval = 2^integer (ld (interval)) */
537
Remy Bohmer172a1132008-09-16 14:55:43 +0200538static int ep_int_ballance(ohci_t *ohci, int interval, int load)
Zhang Wei8d15efa2007-06-06 10:08:14 +0200539{
540 int i, branch = 0;
541
542 /* search for the least loaded interrupt endpoint
543 * branch of all 32 branches
544 */
545 for (i = 0; i < 32; i++)
546 if (ohci->ohci_int_load [branch] > ohci->ohci_int_load [i])
547 branch = i;
548
549 branch = branch % interval;
550 for (i = branch; i < 32; i += interval)
551 ohci->ohci_int_load [i] += load;
552
553 return branch;
554}
555
556/*-------------------------------------------------------------------------*/
557
558/* 2^int( ld (inter)) */
559
Remy Bohmer172a1132008-09-16 14:55:43 +0200560static int ep_2_n_interval(int inter)
Zhang Wei8d15efa2007-06-06 10:08:14 +0200561{
562 int i;
Remy Bohmer172a1132008-09-16 14:55:43 +0200563 for (i = 0; ((inter >> i) > 1) && (i < 5); i++);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200564 return 1 << i;
565}
566
567/*-------------------------------------------------------------------------*/
568
569/* the int tree is a binary tree
Remy Bohmer172a1132008-09-16 14:55:43 +0200570 * in order to process it sequentially the indexes of the branches have to
571 * be mapped the mapping reverses the bits of a word of num_bits length */
572static int ep_rev(int num_bits, int word)
Zhang Wei8d15efa2007-06-06 10:08:14 +0200573{
574 int i, wout = 0;
575
576 for (i = 0; i < num_bits; i++)
577 wout |= (((word >> i) & 1) << (num_bits - i - 1));
578 return wout;
579}
580
581/*-------------------------------------------------------------------------*
582 * ED handling functions
583 *-------------------------------------------------------------------------*/
584
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200585/* link an ed into one of the HC chains */
586
Remy Bohmer172a1132008-09-16 14:55:43 +0200587static int ep_link(ohci_t *ohci, ed_t *edi)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200588{
589 volatile ed_t *ed = edi;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200590 int int_branch;
591 int i;
592 int inter;
593 int interval;
594 int load;
Remy Bohmer172a1132008-09-16 14:55:43 +0200595 __u32 *ed_p;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200596
597 ed->state = ED_OPER;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200598 ed->int_interval = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200599
600 switch (ed->type) {
601 case PIPE_CONTROL:
602 ed->hwNextED = 0;
Remy Bohmer172a1132008-09-16 14:55:43 +0200603 if (ohci->ed_controltail == NULL)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500604 ohci_writel(ed, &ohci->regs->ed_controlhead);
Remy Bohmer172a1132008-09-16 14:55:43 +0200605 else
606 ohci->ed_controltail->hwNextED =
607 m32_swap((unsigned long)ed);
608
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200609 ed->ed_prev = ohci->ed_controltail;
610 if (!ohci->ed_controltail && !ohci->ed_rm_list[0] &&
611 !ohci->ed_rm_list[1] && !ohci->sleeping) {
612 ohci->hc_control |= OHCI_CTRL_CLE;
Becky Bruce4abaacb2010-06-30 13:05:44 -0500613 ohci_writel(ohci->hc_control, &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200614 }
615 ohci->ed_controltail = edi;
616 break;
617
618 case PIPE_BULK:
619 ed->hwNextED = 0;
Remy Bohmer172a1132008-09-16 14:55:43 +0200620 if (ohci->ed_bulktail == NULL)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500621 ohci_writel(ed, &ohci->regs->ed_bulkhead);
Remy Bohmer172a1132008-09-16 14:55:43 +0200622 else
623 ohci->ed_bulktail->hwNextED =
624 m32_swap((unsigned long)ed);
625
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200626 ed->ed_prev = ohci->ed_bulktail;
627 if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] &&
628 !ohci->ed_rm_list[1] && !ohci->sleeping) {
629 ohci->hc_control |= OHCI_CTRL_BLE;
Becky Bruce4abaacb2010-06-30 13:05:44 -0500630 ohci_writel(ohci->hc_control, &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200631 }
632 ohci->ed_bulktail = edi;
633 break;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200634
635 case PIPE_INTERRUPT:
636 load = ed->int_load;
Remy Bohmer172a1132008-09-16 14:55:43 +0200637 interval = ep_2_n_interval(ed->int_period);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200638 ed->int_interval = interval;
Remy Bohmer172a1132008-09-16 14:55:43 +0200639 int_branch = ep_int_ballance(ohci, interval, load);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200640 ed->int_branch = int_branch;
641
Remy Bohmer172a1132008-09-16 14:55:43 +0200642 for (i = 0; i < ep_rev(6, interval); i += inter) {
Zhang Wei8d15efa2007-06-06 10:08:14 +0200643 inter = 1;
Remy Bohmer172a1132008-09-16 14:55:43 +0200644 for (ed_p = &(ohci->hcca->int_table[\
645 ep_rev(5, i) + int_branch]);
646 (*ed_p != 0) &&
647 (((ed_t *)ed_p)->int_interval >= interval);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200648 ed_p = &(((ed_t *)ed_p)->hwNextED))
Remy Bohmer172a1132008-09-16 14:55:43 +0200649 inter = ep_rev(6,
650 ((ed_t *)ed_p)->int_interval);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200651 ed->hwNextED = *ed_p;
Martin Krause8a588192007-08-21 12:40:34 +0200652 *ed_p = m32_swap((unsigned long)ed);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200653 }
654 break;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200655 }
656 return 0;
657}
658
659/*-------------------------------------------------------------------------*/
660
Zhang Wei8d15efa2007-06-06 10:08:14 +0200661/* scan the periodic table to find and unlink this ED */
Remy Bohmer172a1132008-09-16 14:55:43 +0200662static void periodic_unlink(struct ohci *ohci, volatile struct ed *ed,
663 unsigned index, unsigned period)
Zhang Wei8d15efa2007-06-06 10:08:14 +0200664{
665 for (; index < NUM_INTS; index += period) {
666 __u32 *ed_p = &ohci->hcca->int_table [index];
667
668 /* ED might have been unlinked through another path */
669 while (*ed_p != 0) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200670 if (((struct ed *)
671 m32_swap((unsigned long)ed_p)) == ed) {
Zhang Wei8d15efa2007-06-06 10:08:14 +0200672 *ed_p = ed->hwNextED;
673 break;
674 }
Remy Bohmer172a1132008-09-16 14:55:43 +0200675 ed_p = &(((struct ed *)
676 m32_swap((unsigned long)ed_p))->hwNextED);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200677 }
678 }
679}
680
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200681/* unlink an ed from one of the HC chains.
682 * just the link to the ed is unlinked.
683 * the link from the ed still points to another operational ed or 0
684 * so the HC can eventually finish the processing of the unlinked ed */
685
Remy Bohmer172a1132008-09-16 14:55:43 +0200686static int ep_unlink(ohci_t *ohci, ed_t *edi)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200687{
Markus Klotzbuecher661ffe52006-11-27 11:43:09 +0100688 volatile ed_t *ed = edi;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200689 int i;
Markus Klotzbuecher661ffe52006-11-27 11:43:09 +0100690
Remy Bohmer172a1132008-09-16 14:55:43 +0200691 ed->hwINFO |= m32_swap(OHCI_ED_SKIP);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200692
693 switch (ed->type) {
694 case PIPE_CONTROL:
695 if (ed->ed_prev == NULL) {
696 if (!ed->hwNextED) {
697 ohci->hc_control &= ~OHCI_CTRL_CLE;
Becky Bruce4abaacb2010-06-30 13:05:44 -0500698 ohci_writel(ohci->hc_control,
699 &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200700 }
Becky Bruce4abaacb2010-06-30 13:05:44 -0500701 ohci_writel(m32_swap(*((__u32 *)&ed->hwNextED)),
Remy Bohmer172a1132008-09-16 14:55:43 +0200702 &ohci->regs->ed_controlhead);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200703 } else {
704 ed->ed_prev->hwNextED = ed->hwNextED;
705 }
706 if (ohci->ed_controltail == ed) {
707 ohci->ed_controltail = ed->ed_prev;
708 } else {
Remy Bohmer172a1132008-09-16 14:55:43 +0200709 ((ed_t *)m32_swap(
710 *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200711 }
712 break;
713
714 case PIPE_BULK:
715 if (ed->ed_prev == NULL) {
716 if (!ed->hwNextED) {
717 ohci->hc_control &= ~OHCI_CTRL_BLE;
Becky Bruce4abaacb2010-06-30 13:05:44 -0500718 ohci_writel(ohci->hc_control,
719 &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200720 }
Becky Bruce4abaacb2010-06-30 13:05:44 -0500721 ohci_writel(m32_swap(*((__u32 *)&ed->hwNextED)),
Remy Bohmer172a1132008-09-16 14:55:43 +0200722 &ohci->regs->ed_bulkhead);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200723 } else {
724 ed->ed_prev->hwNextED = ed->hwNextED;
725 }
726 if (ohci->ed_bulktail == ed) {
727 ohci->ed_bulktail = ed->ed_prev;
728 } else {
Remy Bohmer172a1132008-09-16 14:55:43 +0200729 ((ed_t *)m32_swap(
730 *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200731 }
732 break;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200733
734 case PIPE_INTERRUPT:
Remy Bohmer172a1132008-09-16 14:55:43 +0200735 periodic_unlink(ohci, ed, 0, 1);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200736 for (i = ed->int_branch; i < 32; i += ed->int_interval)
737 ohci->ohci_int_load[i] -= ed->int_load;
738 break;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200739 }
740 ed->state = ED_UNLINK;
741 return 0;
742}
743
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200744/*-------------------------------------------------------------------------*/
745
Markus Klotzbuecheraa219212006-05-30 16:56:14 +0200746/* add/reinit an endpoint; this should be done once at the
747 * usb_set_configuration command, but the USB stack is a little bit
748 * stateless so we do it at every transaction if the state of the ed
749 * is ED_NEW then a dummy td is added and the state is changed to
750 * ED_UNLINK in all other cases the state is left unchanged the ed
751 * info fields are setted anyway even though most of them should not
752 * change
753 */
Remy Bohmer172a1132008-09-16 14:55:43 +0200754static ed_t *ep_add_ed(struct usb_device *usb_dev, unsigned long pipe,
755 int interval, int load)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200756{
757 td_t *td;
758 ed_t *ed_ret;
759 volatile ed_t *ed;
760
Remy Bohmer172a1132008-09-16 14:55:43 +0200761 ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint(pipe) << 1) |
762 (usb_pipecontrol(pipe)? 0: usb_pipeout(pipe))];
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200763
764 if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) {
765 err("ep_add_ed: pending delete");
766 /* pending delete request */
767 return NULL;
768 }
769
770 if (ed->state == ED_NEW) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200771 /* dummy td; end of td list for ed */
Remy Bohmer172a1132008-09-16 14:55:43 +0200772 td = td_alloc(usb_dev);
773 ed->hwTailP = m32_swap((unsigned long)td);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200774 ed->hwHeadP = ed->hwTailP;
775 ed->state = ED_UNLINK;
Remy Bohmer172a1132008-09-16 14:55:43 +0200776 ed->type = usb_pipetype(pipe);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200777 ohci_dev.ed_cnt++;
778 }
779
Remy Bohmer172a1132008-09-16 14:55:43 +0200780 ed->hwINFO = m32_swap(usb_pipedevice(pipe)
781 | usb_pipeendpoint(pipe) << 7
782 | (usb_pipeisoc(pipe)? 0x8000: 0)
783 | (usb_pipecontrol(pipe)? 0: \
784 (usb_pipeout(pipe)? 0x800: 0x1000))
Ilya Yanoka1cf10f2012-11-06 13:48:20 +0000785 | (usb_dev->speed == USB_SPEED_LOW) << 13
Remy Bohmer172a1132008-09-16 14:55:43 +0200786 | usb_maxpacket(usb_dev, pipe) << 16);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200787
Zhang Wei8d15efa2007-06-06 10:08:14 +0200788 if (ed->type == PIPE_INTERRUPT && ed->state == ED_UNLINK) {
789 ed->int_period = interval;
790 ed->int_load = load;
791 }
792
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200793 return ed_ret;
794}
795
796/*-------------------------------------------------------------------------*
797 * TD handling functions
798 *-------------------------------------------------------------------------*/
799
800/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */
801
Remy Bohmer172a1132008-09-16 14:55:43 +0200802static void td_fill(ohci_t *ohci, unsigned int info,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200803 void *data, int len,
804 struct usb_device *dev, int index, urb_priv_t *urb_priv)
805{
806 volatile td_t *td, *td_pt;
807#ifdef OHCI_FILL_TRACE
808 int i;
809#endif
810
811 if (index > urb_priv->length) {
812 err("index > length");
813 return;
814 }
815 /* use this td as the next dummy */
816 td_pt = urb_priv->td [index];
817 td_pt->hwNextTD = 0;
818
819 /* fill the old dummy TD */
Remy Bohmer172a1132008-09-16 14:55:43 +0200820 td = urb_priv->td [index] =
821 (td_t *)(m32_swap(urb_priv->ed->hwTailP) & ~0xf);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200822
823 td->ed = urb_priv->ed;
824 td->next_dl_td = NULL;
825 td->index = index;
826 td->data = (__u32)data;
827#ifdef OHCI_FILL_TRACE
Remy Bohmer47e72082008-10-10 10:23:21 +0200828 if (usb_pipebulk(urb_priv->pipe) && usb_pipeout(urb_priv->pipe)) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200829 for (i = 0; i < len; i++)
Remy Bohmer172a1132008-09-16 14:55:43 +0200830 printf("td->data[%d] %#2x ", i, ((unsigned char *)td->data)[i]);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200831 printf("\n");
832 }
833#endif
834 if (!len)
835 data = 0;
836
Remy Bohmer172a1132008-09-16 14:55:43 +0200837 td->hwINFO = m32_swap(info);
838 td->hwCBP = m32_swap((unsigned long)data);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200839 if (data)
Remy Bohmer172a1132008-09-16 14:55:43 +0200840 td->hwBE = m32_swap((unsigned long)(data + len - 1));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200841 else
842 td->hwBE = 0;
Remy Bohmer172a1132008-09-16 14:55:43 +0200843
844 td->hwNextTD = m32_swap((unsigned long)td_pt);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200845
846 /* append to queue */
847 td->ed->hwTailP = td->hwNextTD;
848}
849
850/*-------------------------------------------------------------------------*/
851
852/* prepare all TDs of a transfer */
853
Remy Bohmer172a1132008-09-16 14:55:43 +0200854static void td_submit_job(struct usb_device *dev, unsigned long pipe,
855 void *buffer, int transfer_len,
856 struct devrequest *setup, urb_priv_t *urb,
857 int interval)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200858{
859 ohci_t *ohci = &gohci;
860 int data_len = transfer_len;
861 void *data;
862 int cnt = 0;
863 __u32 info = 0;
864 unsigned int toggle = 0;
865
Remy Bohmer172a1132008-09-16 14:55:43 +0200866 /* OHCI handles the DATA-toggles itself, we just use the USB-toggle
867 * bits for reseting */
868 if (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200869 toggle = TD_T_TOGGLE;
870 } else {
871 toggle = TD_T_DATA0;
Remy Bohmer172a1132008-09-16 14:55:43 +0200872 usb_settoggle(dev, usb_pipeendpoint(pipe),
873 usb_pipeout(pipe), 1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200874 }
875 urb->td_cnt = 0;
876 if (data_len)
877 data = buffer;
878 else
879 data = 0;
880
Remy Bohmer172a1132008-09-16 14:55:43 +0200881 switch (usb_pipetype(pipe)) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200882 case PIPE_BULK:
Remy Bohmer172a1132008-09-16 14:55:43 +0200883 info = usb_pipeout(pipe)?
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200884 TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ;
Remy Bohmer172a1132008-09-16 14:55:43 +0200885 while (data_len > 4096) {
886 td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle),
887 data, 4096, dev, cnt, urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200888 data += 4096; data_len -= 4096; cnt++;
889 }
Remy Bohmer172a1132008-09-16 14:55:43 +0200890 info = usb_pipeout(pipe)?
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200891 TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ;
Remy Bohmer172a1132008-09-16 14:55:43 +0200892 td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle), data,
893 data_len, dev, cnt, urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200894 cnt++;
895
Remy Bohmer172a1132008-09-16 14:55:43 +0200896 if (!ohci->sleeping) {
897 /* start bulk list */
Becky Bruce4abaacb2010-06-30 13:05:44 -0500898 ohci_writel(OHCI_BLF, &ohci->regs->cmdstatus);
Remy Bohmer172a1132008-09-16 14:55:43 +0200899 }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200900 break;
901
902 case PIPE_CONTROL:
Remy Bohmer172a1132008-09-16 14:55:43 +0200903 /* Setup phase */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200904 info = TD_CC | TD_DP_SETUP | TD_T_DATA0;
Remy Bohmer172a1132008-09-16 14:55:43 +0200905 td_fill(ohci, info, setup, 8, dev, cnt++, urb);
906
907 /* Optional Data phase */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200908 if (data_len > 0) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200909 info = usb_pipeout(pipe)?
910 TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 :
911 TD_CC | TD_R | TD_DP_IN | TD_T_DATA1;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200912 /* NOTE: mishandles transfers >8K, some >4K */
Remy Bohmer172a1132008-09-16 14:55:43 +0200913 td_fill(ohci, info, data, data_len, dev, cnt++, urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200914 }
Remy Bohmer172a1132008-09-16 14:55:43 +0200915
916 /* Status phase */
917 info = usb_pipeout(pipe)?
918 TD_CC | TD_DP_IN | TD_T_DATA1:
919 TD_CC | TD_DP_OUT | TD_T_DATA1;
920 td_fill(ohci, info, data, 0, dev, cnt++, urb);
921
922 if (!ohci->sleeping) {
923 /* start Control list */
Becky Bruce4abaacb2010-06-30 13:05:44 -0500924 ohci_writel(OHCI_CLF, &ohci->regs->cmdstatus);
Remy Bohmer172a1132008-09-16 14:55:43 +0200925 }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200926 break;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200927
928 case PIPE_INTERRUPT:
Remy Bohmer172a1132008-09-16 14:55:43 +0200929 info = usb_pipeout(urb->pipe)?
Zhang Wei8d15efa2007-06-06 10:08:14 +0200930 TD_CC | TD_DP_OUT | toggle:
931 TD_CC | TD_R | TD_DP_IN | toggle;
Remy Bohmer172a1132008-09-16 14:55:43 +0200932 td_fill(ohci, info, data, data_len, dev, cnt++, urb);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200933 break;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200934 }
935 if (urb->length != cnt)
936 dbg("TD LENGTH %d != CNT %d", urb->length, cnt);
937}
938
939/*-------------------------------------------------------------------------*
940 * Done List handling functions
941 *-------------------------------------------------------------------------*/
942
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200943/* calculate the transfer length and update the urb */
944
Remy Bohmer172a1132008-09-16 14:55:43 +0200945static void dl_transfer_length(td_t *td)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200946{
Wolfgang Denk0ef5f622011-10-05 23:03:43 +0200947 __u32 tdBE, tdCBP;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200948 urb_priv_t *lurb_priv = td->ed->purb;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200949
Remy Bohmer172a1132008-09-16 14:55:43 +0200950 tdBE = m32_swap(td->hwBE);
951 tdCBP = m32_swap(td->hwCBP);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200952
Remy Bohmer47e72082008-10-10 10:23:21 +0200953 if (!(usb_pipecontrol(lurb_priv->pipe) &&
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200954 ((td->index == 0) || (td->index == lurb_priv->length - 1)))) {
955 if (tdBE != 0) {
956 if (td->hwCBP == 0)
957 lurb_priv->actual_length += tdBE - td->data + 1;
958 else
959 lurb_priv->actual_length += tdCBP - td->data;
960 }
961 }
962}
963
964/*-------------------------------------------------------------------------*/
Remy Bohmer172a1132008-09-16 14:55:43 +0200965static void check_status(td_t *td_list)
966{
967 urb_priv_t *lurb_priv = td_list->ed->purb;
968 int urb_len = lurb_priv->length;
969 __u32 *phwHeadP = &td_list->ed->hwHeadP;
970 int cc;
971
972 cc = TD_CC_GET(m32_swap(td_list->hwINFO));
973 if (cc) {
974 err(" USB-error: %s (%x)", cc_to_string[cc], cc);
975
976 if (*phwHeadP & m32_swap(0x1)) {
977 if (lurb_priv &&
978 ((td_list->index + 1) < urb_len)) {
979 *phwHeadP =
980 (lurb_priv->td[urb_len - 1]->hwNextTD &\
981 m32_swap(0xfffffff0)) |
982 (*phwHeadP & m32_swap(0x2));
983
984 lurb_priv->td_cnt += urb_len -
985 td_list->index - 1;
986 } else
987 *phwHeadP &= m32_swap(0xfffffff2);
988 }
989#ifdef CONFIG_MPC5200
990 td_list->hwNextTD = 0;
991#endif
992 }
993}
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200994
995/* replies to the request have to be on a FIFO basis so
996 * we reverse the reversed done-list */
Remy Bohmer172a1132008-09-16 14:55:43 +0200997static td_t *dl_reverse_done_list(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200998{
999 __u32 td_list_hc;
1000 td_t *td_rev = NULL;
1001 td_t *td_list = NULL;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001002
Remy Bohmer172a1132008-09-16 14:55:43 +02001003 td_list_hc = m32_swap(ohci->hcca->done_head) & 0xfffffff0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001004 ohci->hcca->done_head = 0;
1005
1006 while (td_list_hc) {
1007 td_list = (td_t *)td_list_hc;
Remy Bohmer172a1132008-09-16 14:55:43 +02001008 check_status(td_list);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001009 td_list->next_dl_td = td_rev;
1010 td_rev = td_list;
Remy Bohmer172a1132008-09-16 14:55:43 +02001011 td_list_hc = m32_swap(td_list->hwNextTD) & 0xfffffff0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001012 }
1013 return td_list;
1014}
1015
1016/*-------------------------------------------------------------------------*/
Remy Bohmer172a1132008-09-16 14:55:43 +02001017/*-------------------------------------------------------------------------*/
1018
1019static void finish_urb(ohci_t *ohci, urb_priv_t *urb, int status)
1020{
1021 if ((status & (ED_OPER | ED_UNLINK)) && (urb->state != URB_DEL))
1022 urb->finished = sohci_return_job(ohci, urb);
1023 else
1024 dbg("finish_urb: strange.., ED state %x, \n", status);
1025}
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001026
Remy Bohmer172a1132008-09-16 14:55:43 +02001027/*
1028 * Used to take back a TD from the host controller. This would normally be
1029 * called from within dl_done_list, however it may be called directly if the
1030 * HC no longer sees the TD and it has not appeared on the donelist (after
1031 * two frames). This bug has been observed on ZF Micro systems.
1032 */
1033static int takeback_td(ohci_t *ohci, td_t *td_list)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001034{
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001035 ed_t *ed;
Remy Bohmer172a1132008-09-16 14:55:43 +02001036 int cc;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001037 int stat = 0;
1038 /* urb_t *urb; */
1039 urb_priv_t *lurb_priv;
1040 __u32 tdINFO, edHeadP, edTailP;
1041
Remy Bohmer172a1132008-09-16 14:55:43 +02001042 tdINFO = m32_swap(td_list->hwINFO);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001043
Remy Bohmer172a1132008-09-16 14:55:43 +02001044 ed = td_list->ed;
1045 lurb_priv = ed->purb;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001046
Remy Bohmer172a1132008-09-16 14:55:43 +02001047 dl_transfer_length(td_list);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001048
Remy Bohmer172a1132008-09-16 14:55:43 +02001049 lurb_priv->td_cnt++;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001050
Remy Bohmer172a1132008-09-16 14:55:43 +02001051 /* error code of transfer */
1052 cc = TD_CC_GET(tdINFO);
1053 if (cc) {
1054 err("USB-error: %s (%x)", cc_to_string[cc], cc);
1055 stat = cc_to_error[cc];
1056 }
Markus Klotzbuechere3af6d52007-03-26 11:21:05 +02001057
Remy Bohmer172a1132008-09-16 14:55:43 +02001058 /* see if this done list makes for all TD's of current URB,
1059 * and mark the URB finished if so */
1060 if (lurb_priv->td_cnt == lurb_priv->length)
1061 finish_urb(ohci, lurb_priv, ed->state);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001062
Remy Bohmer172a1132008-09-16 14:55:43 +02001063 dbg("dl_done_list: processing TD %x, len %x\n",
1064 lurb_priv->td_cnt, lurb_priv->length);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001065
Remy Bohmer47e72082008-10-10 10:23:21 +02001066 if (ed->state != ED_NEW && (!usb_pipeint(lurb_priv->pipe))) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001067 edHeadP = m32_swap(ed->hwHeadP) & 0xfffffff0;
1068 edTailP = m32_swap(ed->hwTailP);
1069
1070 /* unlink eds if they are not busy */
1071 if ((edHeadP == edTailP) && (ed->state == ED_OPER))
1072 ep_unlink(ohci, ed);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001073 }
1074 return stat;
1075}
1076
Remy Bohmer172a1132008-09-16 14:55:43 +02001077static int dl_done_list(ohci_t *ohci)
1078{
1079 int stat = 0;
1080 td_t *td_list = dl_reverse_done_list(ohci);
1081
1082 while (td_list) {
1083 td_t *td_next = td_list->next_dl_td;
1084 stat = takeback_td(ohci, td_list);
1085 td_list = td_next;
1086 }
1087 return stat;
1088}
1089
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001090/*-------------------------------------------------------------------------*
1091 * Virtual Root Hub
1092 *-------------------------------------------------------------------------*/
1093
Stephen Warren39c89682014-02-13 21:15:18 -07001094#include <usbroothubdes.h>
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001095
1096/* Hub class-specific descriptor is constructed dynamically */
1097
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001098/*-------------------------------------------------------------------------*/
1099
1100#define OK(x) len = (x); break
1101#ifdef DEBUG
Becky Bruce4abaacb2010-06-30 13:05:44 -05001102#define WR_RH_STAT(x) {info("WR:status %#8x", (x)); ohci_writel((x), \
Remy Bohmer172a1132008-09-16 14:55:43 +02001103 &gohci.regs->roothub.status); }
1104#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, \
Becky Bruce4abaacb2010-06-30 13:05:44 -05001105 (x)); ohci_writel((x), &gohci.regs->roothub.portstatus[wIndex-1]); }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001106#else
Becky Bruce4abaacb2010-06-30 13:05:44 -05001107#define WR_RH_STAT(x) ohci_writel((x), &gohci.regs->roothub.status)
1108#define WR_RH_PORTSTAT(x) ohci_writel((x), \
Remy Bohmer172a1132008-09-16 14:55:43 +02001109 &gohci.regs->roothub.portstatus[wIndex-1])
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001110#endif
1111#define RD_RH_STAT roothub_status(&gohci)
Remy Bohmer172a1132008-09-16 14:55:43 +02001112#define RD_RH_PORTSTAT roothub_portstatus(&gohci, wIndex-1)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001113
1114/* request to virtual root hub */
1115
1116int rh_check_port_status(ohci_t *controller)
1117{
1118 __u32 temp, ndp, i;
1119 int res;
1120
1121 res = -1;
Remy Bohmer172a1132008-09-16 14:55:43 +02001122 temp = roothub_a(controller);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001123 ndp = (temp & RH_A_NDP);
1124#ifdef CONFIG_AT91C_PQFP_UHPBUG
1125 ndp = (ndp == 2) ? 1:0;
1126#endif
1127 for (i = 0; i < ndp; i++) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001128 temp = roothub_portstatus(controller, i);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001129 /* check for a device disconnect */
1130 if (((temp & (RH_PS_PESC | RH_PS_CSC)) ==
1131 (RH_PS_PESC | RH_PS_CSC)) &&
1132 ((temp & RH_PS_CCS) == 0)) {
1133 res = i;
1134 break;
1135 }
1136 }
1137 return res;
1138}
1139
1140static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
1141 void *buffer, int transfer_len, struct devrequest *cmd)
1142{
Remy Bohmer172a1132008-09-16 14:55:43 +02001143 void *data = buffer;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001144 int leni = transfer_len;
1145 int len = 0;
1146 int stat = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001147 __u16 bmRType_bReq;
1148 __u16 wValue;
1149 __u16 wIndex;
1150 __u16 wLength;
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001151 ALLOC_ALIGN_BUFFER(__u8, databuf, 16, sizeof(u32));
Marek Vasutfc5cf882011-10-07 02:00:13 +02001152
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001153#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +02001154pkt_print(NULL, dev, pipe, buffer, transfer_len,
1155 cmd, "SUB(rh)", usb_pipein(pipe));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001156#else
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001157 mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001158#endif
Remy Bohmer47e72082008-10-10 10:23:21 +02001159 if (usb_pipeint(pipe)) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001160 info("Root-Hub submit IRQ: NOT implemented");
1161 return 0;
1162 }
1163
1164 bmRType_bReq = cmd->requesttype | (cmd->request << 8);
Remy Bohmer172a1132008-09-16 14:55:43 +02001165 wValue = le16_to_cpu(cmd->value);
1166 wIndex = le16_to_cpu(cmd->index);
1167 wLength = le16_to_cpu(cmd->length);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001168
1169 info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x",
1170 dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength);
1171
1172 switch (bmRType_bReq) {
1173 /* Request Destination:
1174 without flags: Device,
1175 RH_INTERFACE: interface,
1176 RH_ENDPOINT: endpoint,
1177 RH_CLASS means HUB here,
1178 RH_OTHER | RH_CLASS almost ever means HUB_PORT here
1179 */
1180
1181 case RH_GET_STATUS:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001182 *(u16 *)databuf = cpu_to_le16(1);
Remy Bohmer172a1132008-09-16 14:55:43 +02001183 OK(2);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001184 case RH_GET_STATUS | RH_INTERFACE:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001185 *(u16 *)databuf = cpu_to_le16(0);
Remy Bohmer172a1132008-09-16 14:55:43 +02001186 OK(2);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001187 case RH_GET_STATUS | RH_ENDPOINT:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001188 *(u16 *)databuf = cpu_to_le16(0);
Remy Bohmer172a1132008-09-16 14:55:43 +02001189 OK(2);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001190 case RH_GET_STATUS | RH_CLASS:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001191 *(u32 *)databuf = cpu_to_le32(
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001192 RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE));
Remy Bohmer172a1132008-09-16 14:55:43 +02001193 OK(4);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001194 case RH_GET_STATUS | RH_OTHER | RH_CLASS:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001195 *(u32 *)databuf = cpu_to_le32(RD_RH_PORTSTAT);
Remy Bohmer172a1132008-09-16 14:55:43 +02001196 OK(4);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001197
1198 case RH_CLEAR_FEATURE | RH_ENDPOINT:
1199 switch (wValue) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001200 case (RH_ENDPOINT_STALL):
1201 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001202 }
1203 break;
1204
1205 case RH_CLEAR_FEATURE | RH_CLASS:
1206 switch (wValue) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001207 case RH_C_HUB_LOCAL_POWER:
1208 OK(0);
1209 case (RH_C_HUB_OVER_CURRENT):
1210 WR_RH_STAT(RH_HS_OCIC);
1211 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001212 }
1213 break;
1214
1215 case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
1216 switch (wValue) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001217 case (RH_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_CCS); OK(0);
1218 case (RH_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_POCI); OK(0);
1219 case (RH_PORT_POWER): WR_RH_PORTSTAT(RH_PS_LSDA); OK(0);
1220 case (RH_C_PORT_CONNECTION): WR_RH_PORTSTAT(RH_PS_CSC); OK(0);
1221 case (RH_C_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_PESC); OK(0);
1222 case (RH_C_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_PSSC); OK(0);
1223 case (RH_C_PORT_OVER_CURRENT):WR_RH_PORTSTAT(RH_PS_OCIC); OK(0);
1224 case (RH_C_PORT_RESET): WR_RH_PORTSTAT(RH_PS_PRSC); OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001225 }
1226 break;
1227
1228 case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
1229 switch (wValue) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001230 case (RH_PORT_SUSPEND):
1231 WR_RH_PORTSTAT(RH_PS_PSS); OK(0);
1232 case (RH_PORT_RESET): /* BUG IN HUP CODE *********/
1233 if (RD_RH_PORTSTAT & RH_PS_CCS)
1234 WR_RH_PORTSTAT(RH_PS_PRS);
1235 OK(0);
1236 case (RH_PORT_POWER):
1237 WR_RH_PORTSTAT(RH_PS_PPS);
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001238 mdelay(100);
Remy Bohmer172a1132008-09-16 14:55:43 +02001239 OK(0);
1240 case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/
1241 if (RD_RH_PORTSTAT & RH_PS_CCS)
1242 WR_RH_PORTSTAT(RH_PS_PES);
1243 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001244 }
1245 break;
1246
Remy Bohmer172a1132008-09-16 14:55:43 +02001247 case RH_SET_ADDRESS:
1248 gohci.rh.devnum = wValue;
1249 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001250
1251 case RH_GET_DESCRIPTOR:
1252 switch ((wValue & 0xff00) >> 8) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001253 case (0x01): /* device descriptor */
1254 len = min_t(unsigned int,
1255 leni,
1256 min_t(unsigned int,
1257 sizeof(root_hub_dev_des),
1258 wLength));
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001259 databuf = root_hub_dev_des; OK(len);
Remy Bohmer172a1132008-09-16 14:55:43 +02001260 case (0x02): /* configuration descriptor */
1261 len = min_t(unsigned int,
1262 leni,
1263 min_t(unsigned int,
1264 sizeof(root_hub_config_des),
1265 wLength));
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001266 databuf = root_hub_config_des; OK(len);
Remy Bohmer172a1132008-09-16 14:55:43 +02001267 case (0x03): /* string descriptors */
1268 if (wValue == 0x0300) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001269 len = min_t(unsigned int,
Remy Bohmer172a1132008-09-16 14:55:43 +02001270 leni,
1271 min_t(unsigned int,
1272 sizeof(root_hub_str_index0),
1273 wLength));
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001274 databuf = root_hub_str_index0;
Remy Bohmer172a1132008-09-16 14:55:43 +02001275 OK(len);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001276 }
Remy Bohmer172a1132008-09-16 14:55:43 +02001277 if (wValue == 0x0301) {
1278 len = min_t(unsigned int,
1279 leni,
1280 min_t(unsigned int,
1281 sizeof(root_hub_str_index1),
1282 wLength));
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001283 databuf = root_hub_str_index1;
Remy Bohmer172a1132008-09-16 14:55:43 +02001284 OK(len);
1285 }
1286 default:
1287 stat = USB_ST_STALLED;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001288 }
1289 break;
1290
1291 case RH_GET_DESCRIPTOR | RH_CLASS:
1292 {
Remy Bohmer172a1132008-09-16 14:55:43 +02001293 __u32 temp = roothub_a(&gohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001294
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001295 databuf[0] = 9; /* min length; */
1296 databuf[1] = 0x29;
1297 databuf[2] = temp & RH_A_NDP;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001298#ifdef CONFIG_AT91C_PQFP_UHPBUG
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001299 databuf[2] = (databuf[2] == 2) ? 1 : 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001300#endif
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001301 databuf[3] = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001302 if (temp & RH_A_PSM) /* per-port power switching? */
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001303 databuf[3] |= 0x1;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001304 if (temp & RH_A_NOCP) /* no overcurrent reporting? */
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001305 databuf[3] |= 0x10;
Remy Bohmer172a1132008-09-16 14:55:43 +02001306 else if (temp & RH_A_OCPM)/* per-port overcurrent reporting? */
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001307 databuf[3] |= 0x8;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001308
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001309 databuf[4] = 0;
1310 databuf[5] = (temp & RH_A_POTPGT) >> 24;
1311 databuf[6] = 0;
Remy Bohmer172a1132008-09-16 14:55:43 +02001312 temp = roothub_b(&gohci);
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001313 databuf[7] = temp & RH_B_DR;
1314 if (databuf[2] < 7) {
1315 databuf[8] = 0xff;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001316 } else {
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001317 databuf[0] += 2;
1318 databuf[8] = (temp & RH_B_DR) >> 8;
1319 databuf[10] = databuf[9] = 0xff;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001320 }
1321
1322 len = min_t(unsigned int, leni,
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001323 min_t(unsigned int, databuf[0], wLength));
Remy Bohmer172a1132008-09-16 14:55:43 +02001324 OK(len);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001325 }
1326
Marek Vasutfc5cf882011-10-07 02:00:13 +02001327 case RH_GET_CONFIGURATION:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001328 databuf[0] = 0x01;
Marek Vasutfc5cf882011-10-07 02:00:13 +02001329 OK(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001330
Marek Vasutfc5cf882011-10-07 02:00:13 +02001331 case RH_SET_CONFIGURATION:
1332 WR_RH_STAT(0x10000);
1333 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001334
1335 default:
Remy Bohmer172a1132008-09-16 14:55:43 +02001336 dbg("unsupported root hub command");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001337 stat = USB_ST_STALLED;
1338 }
1339
1340#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +02001341 ohci_dump_roothub(&gohci, 1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001342#else
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001343 mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001344#endif
1345
1346 len = min_t(int, len, leni);
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001347 if (data != databuf)
1348 memcpy(data, databuf, len);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001349 dev->act_len = len;
1350 dev->status = stat;
1351
1352#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +02001353 pkt_print(NULL, dev, pipe, buffer,
1354 transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001355#else
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001356 mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001357#endif
1358
1359 return stat;
1360}
1361
1362/*-------------------------------------------------------------------------*/
1363
1364/* common code for handling submit messages - used for all but root hub */
1365/* accesses. */
1366int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
1367 int transfer_len, struct devrequest *setup, int interval)
1368{
1369 int stat = 0;
1370 int maxsize = usb_maxpacket(dev, pipe);
1371 int timeout;
Zhang Wei8d15efa2007-06-06 10:08:14 +02001372 urb_priv_t *urb;
1373
1374 urb = malloc(sizeof(urb_priv_t));
1375 memset(urb, 0, sizeof(urb_priv_t));
1376
1377 urb->dev = dev;
1378 urb->pipe = pipe;
1379 urb->transfer_buffer = buffer;
1380 urb->transfer_buffer_length = transfer_len;
1381 urb->interval = interval;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001382
1383 /* device pulled? Shortcut the action. */
1384 if (devgone == dev) {
1385 dev->status = USB_ST_CRC_ERR;
1386 return 0;
1387 }
1388
1389#ifdef DEBUG
Zhang Wei8d15efa2007-06-06 10:08:14 +02001390 urb->actual_length = 0;
Remy Bohmer172a1132008-09-16 14:55:43 +02001391 pkt_print(urb, dev, pipe, buffer, transfer_len,
1392 setup, "SUB", usb_pipein(pipe));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001393#else
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001394 mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001395#endif
1396 if (!maxsize) {
1397 err("submit_common_message: pipesize for pipe %lx is zero",
1398 pipe);
1399 return -1;
1400 }
1401
Zhang Wei8d15efa2007-06-06 10:08:14 +02001402 if (sohci_submit_job(urb, setup) < 0) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001403 err("sohci_submit_job failed");
1404 return -1;
1405 }
1406
Markus Klotzbuecherd209de62006-11-27 11:46:46 +01001407#if 0
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001408 mdelay(10);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001409 /* ohci_dump_status(&gohci); */
Markus Klotzbuecherd209de62006-11-27 11:46:46 +01001410#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001411
Simon Glassfd7f5132011-02-07 14:42:16 -08001412 timeout = USB_TIMEOUT_MS(pipe);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001413
1414 /* wait for it to complete */
1415 for (;;) {
1416 /* check whether the controller is done */
1417 stat = hc_interrupt();
1418 if (stat < 0) {
1419 stat = USB_ST_CRC_ERR;
1420 break;
1421 }
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001422
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001423 /* NOTE: since we are not interrupt driven in U-Boot and always
1424 * handle only one URB at a time, we cannot assume the
1425 * transaction finished on the first successful return from
1426 * hc_interrupt().. unless the flag for current URB is set,
1427 * meaning that all TD's to/from device got actually
1428 * transferred and processed. If the current URB is not
1429 * finished we need to re-iterate this loop so as
1430 * hc_interrupt() gets called again as there needs to be some
1431 * more TD's to process still */
Zhang Wei8d15efa2007-06-06 10:08:14 +02001432 if ((stat >= 0) && (stat != 0xff) && (urb->finished)) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001433 /* 0xff is returned for an SF-interrupt */
1434 break;
1435 }
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001436
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001437 if (--timeout) {
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001438 mdelay(1);
Zhang Wei8d15efa2007-06-06 10:08:14 +02001439 if (!urb->finished)
Remy Bohmer172a1132008-09-16 14:55:43 +02001440 dbg("*");
Zhang Wei8d15efa2007-06-06 10:08:14 +02001441
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001442 } else {
1443 err("CTL:TIMEOUT ");
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001444 dbg("submit_common_msg: TO status %x\n", stat);
Zhang Wei8d15efa2007-06-06 10:08:14 +02001445 urb->finished = 1;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001446 stat = USB_ST_CRC_ERR;
1447 break;
1448 }
1449 }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001450
1451 dev->status = stat;
Mateusz Kulikowski10b479d2013-10-23 20:26:27 +02001452 dev->act_len = urb->actual_length;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001453
1454#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +02001455 pkt_print(urb, dev, pipe, buffer, transfer_len,
1456 setup, "RET(ctlr)", usb_pipein(pipe));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001457#else
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001458 mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001459#endif
1460
1461 /* free TDs in urb_priv */
Remy Bohmer47e72082008-10-10 10:23:21 +02001462 if (!usb_pipeint(pipe))
Remy Bohmer172a1132008-09-16 14:55:43 +02001463 urb_free_priv(urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001464 return 0;
1465}
1466
1467/* submit routines called from usb.c */
1468int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
1469 int transfer_len)
1470{
1471 info("submit_bulk_msg");
1472 return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0);
1473}
1474
1475int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
1476 int transfer_len, struct devrequest *setup)
1477{
1478 int maxsize = usb_maxpacket(dev, pipe);
1479
1480 info("submit_control_msg");
1481#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +02001482 pkt_print(NULL, dev, pipe, buffer, transfer_len,
1483 setup, "SUB", usb_pipein(pipe));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001484#else
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001485 mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001486#endif
1487 if (!maxsize) {
1488 err("submit_control_message: pipesize for pipe %lx is zero",
1489 pipe);
1490 return -1;
1491 }
1492 if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) {
1493 gohci.rh.dev = dev;
1494 /* root hub - redirect */
1495 return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len,
1496 setup);
1497 }
1498
1499 return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0);
1500}
1501
1502int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
1503 int transfer_len, int interval)
1504{
1505 info("submit_int_msg");
Zhang Wei8d15efa2007-06-06 10:08:14 +02001506 return submit_common_msg(dev, pipe, buffer, transfer_len, NULL,
1507 interval);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001508}
1509
1510/*-------------------------------------------------------------------------*
1511 * HC functions
1512 *-------------------------------------------------------------------------*/
1513
1514/* reset the HC and BUS */
1515
Remy Bohmer172a1132008-09-16 14:55:43 +02001516static int hc_reset(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001517{
Yuri Tikhonov11af42c2008-09-04 11:19:05 +02001518#ifdef CONFIG_PCI_EHCI_DEVNO
1519 pci_dev_t pdev;
1520#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001521 int timeout = 30;
1522 int smm_timeout = 50; /* 0,5 sec */
1523
1524 dbg("%s\n", __FUNCTION__);
1525
Yuri Tikhonov11af42c2008-09-04 11:19:05 +02001526#ifdef CONFIG_PCI_EHCI_DEVNO
1527 /*
1528 * Some multi-function controllers (e.g. ISP1562) allow root hub
1529 * resetting via EHCI registers only.
1530 */
1531 pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVNO);
1532 if (pdev != -1) {
1533 u32 base;
1534 int timeout = 1000;
1535
1536 pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001537 base += EHCI_USBCMD_OFF;
1538 ohci_writel(ohci_readl(base) | EHCI_USBCMD_HCRESET, base);
Yuri Tikhonov11af42c2008-09-04 11:19:05 +02001539
Becky Bruce4abaacb2010-06-30 13:05:44 -05001540 while (ohci_readl(base) & EHCI_USBCMD_HCRESET) {
Yuri Tikhonov11af42c2008-09-04 11:19:05 +02001541 if (timeout-- <= 0) {
1542 printf("USB RootHub reset timed out!");
1543 break;
1544 }
1545 udelay(1);
1546 }
1547 } else
1548 printf("No EHCI func at %d index!\n", CONFIG_PCI_EHCI_DEVNO);
1549#endif
Becky Bruce4abaacb2010-06-30 13:05:44 -05001550 if (ohci_readl(&ohci->regs->control) & OHCI_CTRL_IR) {
1551 /* SMM owns the HC, request ownership */
1552 ohci_writel(OHCI_OCR, &ohci->regs->cmdstatus);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001553 info("USB HC TakeOver from SMM");
Becky Bruce4abaacb2010-06-30 13:05:44 -05001554 while (ohci_readl(&ohci->regs->control) & OHCI_CTRL_IR) {
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001555 mdelay(10);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001556 if (--smm_timeout == 0) {
1557 err("USB HC TakeOver failed!");
1558 return -1;
1559 }
1560 }
1561 }
1562
1563 /* Disable HC interrupts */
Becky Bruce4abaacb2010-06-30 13:05:44 -05001564 ohci_writel(OHCI_INTR_MIE, &ohci->regs->intrdisable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001565
1566 dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;\n",
1567 ohci->slot_name,
Becky Bruce4abaacb2010-06-30 13:05:44 -05001568 ohci_readl(&ohci->regs->control));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001569
1570 /* Reset USB (needed by some controllers) */
Markus Klotzbuecher661ffe52006-11-27 11:43:09 +01001571 ohci->hc_control = 0;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001572 ohci_writel(ohci->hc_control, &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001573
1574 /* HC Reset requires max 10 us delay */
Becky Bruce4abaacb2010-06-30 13:05:44 -05001575 ohci_writel(OHCI_HCR, &ohci->regs->cmdstatus);
1576 while ((ohci_readl(&ohci->regs->cmdstatus) & OHCI_HCR) != 0) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001577 if (--timeout == 0) {
1578 err("USB HC reset timed out!");
1579 return -1;
1580 }
Remy Bohmer172a1132008-09-16 14:55:43 +02001581 udelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001582 }
1583 return 0;
1584}
1585
1586/*-------------------------------------------------------------------------*/
1587
1588/* Start an OHCI controller, set the BUS operational
1589 * enable interrupts
1590 * connect the virtual root hub */
1591
Remy Bohmer172a1132008-09-16 14:55:43 +02001592static int hc_start(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001593{
1594 __u32 mask;
1595 unsigned int fminterval;
1596
1597 ohci->disabled = 1;
1598
1599 /* Tell the controller where the control and bulk lists are
1600 * The lists are empty now. */
1601
Becky Bruce4abaacb2010-06-30 13:05:44 -05001602 ohci_writel(0, &ohci->regs->ed_controlhead);
1603 ohci_writel(0, &ohci->regs->ed_bulkhead);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001604
Becky Bruce4abaacb2010-06-30 13:05:44 -05001605 ohci_writel((__u32)ohci->hcca,
1606 &ohci->regs->hcca); /* reset clears this */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001607
1608 fminterval = 0x2edf;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001609 ohci_writel((fminterval * 9) / 10, &ohci->regs->periodicstart);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001610 fminterval |= ((((fminterval - 210) * 6) / 7) << 16);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001611 ohci_writel(fminterval, &ohci->regs->fminterval);
1612 ohci_writel(0x628, &ohci->regs->lsthresh);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001613
1614 /* start controller operations */
1615 ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER;
1616 ohci->disabled = 0;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001617 ohci_writel(ohci->hc_control, &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001618
1619 /* disable all interrupts */
1620 mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD |
1621 OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC |
1622 OHCI_INTR_OC | OHCI_INTR_MIE);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001623 ohci_writel(mask, &ohci->regs->intrdisable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001624 /* clear all interrupts */
1625 mask &= ~OHCI_INTR_MIE;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001626 ohci_writel(mask, &ohci->regs->intrstatus);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001627 /* Choose the interrupts we care about now - but w/o MIE */
1628 mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001629 ohci_writel(mask, &ohci->regs->intrenable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001630
1631#ifdef OHCI_USE_NPS
1632 /* required for AMD-756 and some Mac platforms */
Becky Bruce4abaacb2010-06-30 13:05:44 -05001633 ohci_writel((roothub_a(ohci) | RH_A_NPS) & ~RH_A_PSM,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001634 &ohci->regs->roothub.a);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001635 ohci_writel(RH_HS_LPSC, &ohci->regs->roothub.status);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001636#endif /* OHCI_USE_NPS */
1637
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001638 /* POTPGT delay is bits 24-31, in 2 ms units. */
Remy Bohmer172a1132008-09-16 14:55:43 +02001639 mdelay((roothub_a(ohci) >> 23) & 0x1fe);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001640
1641 /* connect the virtual root hub */
1642 ohci->rh.devnum = 0;
1643
1644 return 0;
1645}
1646
1647/*-------------------------------------------------------------------------*/
1648
1649/* an interrupt happens */
1650
Remy Bohmer172a1132008-09-16 14:55:43 +02001651static int hc_interrupt(void)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001652{
1653 ohci_t *ohci = &gohci;
1654 struct ohci_regs *regs = ohci->regs;
1655 int ints;
1656 int stat = -1;
1657
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001658 if ((ohci->hcca->done_head != 0) &&
Remy Bohmer172a1132008-09-16 14:55:43 +02001659 !(m32_swap(ohci->hcca->done_head) & 0x01)) {
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001660 ints = OHCI_INTR_WDH;
Remy Bohmer172a1132008-09-16 14:55:43 +02001661 } else {
Becky Bruce4abaacb2010-06-30 13:05:44 -05001662 ints = ohci_readl(&regs->intrstatus);
Remy Bohmer172a1132008-09-16 14:55:43 +02001663 if (ints == ~(u32)0) {
1664 ohci->disabled++;
1665 err("%s device removed!", ohci->slot_name);
1666 return -1;
1667 } else {
Becky Bruce4abaacb2010-06-30 13:05:44 -05001668 ints &= ohci_readl(&regs->intrenable);
Remy Bohmer172a1132008-09-16 14:55:43 +02001669 if (ints == 0) {
1670 dbg("hc_interrupt: returning..\n");
1671 return 0xff;
1672 }
1673 }
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001674 }
Markus Klotzbuechere3af6d52007-03-26 11:21:05 +02001675
Remy Bohmer172a1132008-09-16 14:55:43 +02001676 /* dbg("Interrupt: %x frame: %x", ints,
1677 le16_to_cpu(ohci->hcca->frame_no)); */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001678
Remy Bohmer172a1132008-09-16 14:55:43 +02001679 if (ints & OHCI_INTR_RHSC)
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001680 stat = 0xff;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001681
1682 if (ints & OHCI_INTR_UE) {
1683 ohci->disabled++;
Remy Bohmer172a1132008-09-16 14:55:43 +02001684 err("OHCI Unrecoverable Error, controller usb-%s disabled",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001685 ohci->slot_name);
1686 /* e.g. due to PCI Master/Target Abort */
1687
1688#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +02001689 ohci_dump(ohci, 1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001690#else
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001691 mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001692#endif
1693 /* FIXME: be optimistic, hope that bug won't repeat often. */
1694 /* Make some non-interrupt context restart the controller. */
1695 /* Count and limit the retries though; either hardware or */
1696 /* software errors can go forever... */
Remy Bohmer172a1132008-09-16 14:55:43 +02001697 hc_reset(ohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001698 return -1;
1699 }
1700
1701 if (ints & OHCI_INTR_WDH) {
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001702 mdelay(1);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001703 ohci_writel(OHCI_INTR_WDH, &regs->intrdisable);
1704 (void)ohci_readl(&regs->intrdisable); /* flush */
Remy Bohmer172a1132008-09-16 14:55:43 +02001705 stat = dl_done_list(&gohci);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001706 ohci_writel(OHCI_INTR_WDH, &regs->intrenable);
1707 (void)ohci_readl(&regs->intrdisable); /* flush */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001708 }
1709
1710 if (ints & OHCI_INTR_SO) {
1711 dbg("USB Schedule overrun\n");
Becky Bruce4abaacb2010-06-30 13:05:44 -05001712 ohci_writel(OHCI_INTR_SO, &regs->intrenable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001713 stat = -1;
1714 }
1715
1716 /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */
1717 if (ints & OHCI_INTR_SF) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001718 unsigned int frame = m16_swap(ohci->hcca->frame_no) & 1;
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001719 mdelay(1);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001720 ohci_writel(OHCI_INTR_SF, &regs->intrdisable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001721 if (ohci->ed_rm_list[frame] != NULL)
Becky Bruce4abaacb2010-06-30 13:05:44 -05001722 ohci_writel(OHCI_INTR_SF, &regs->intrenable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001723 stat = 0xff;
1724 }
1725
Becky Bruce4abaacb2010-06-30 13:05:44 -05001726 ohci_writel(ints, &regs->intrstatus);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001727 return stat;
1728}
1729
1730/*-------------------------------------------------------------------------*/
1731
1732/*-------------------------------------------------------------------------*/
1733
1734/* De-allocate all resources.. */
1735
Remy Bohmer172a1132008-09-16 14:55:43 +02001736static void hc_release_ohci(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001737{
Remy Bohmer172a1132008-09-16 14:55:43 +02001738 dbg("USB HC release ohci usb-%s", ohci->slot_name);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001739
1740 if (!ohci->disabled)
Remy Bohmer172a1132008-09-16 14:55:43 +02001741 hc_reset(ohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001742}
1743
1744/*-------------------------------------------------------------------------*/
1745
1746/*
1747 * low level initalisation routine, called from usb.c
1748 */
1749static char ohci_inited = 0;
1750
Troy Kisky8f9c49d2013-10-10 15:27:56 -07001751int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001752{
Zhang Wei8d15efa2007-06-06 10:08:14 +02001753#ifdef CONFIG_PCI_OHCI
1754 pci_dev_t pdev;
1755#endif
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001756
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001757#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001758 /* cpu dependant init */
Remy Bohmer172a1132008-09-16 14:55:43 +02001759 if (usb_cpu_init())
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001760 return -1;
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001761#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001762
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001763#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001764 /* board dependant init */
Mateusz Zalegad862f892013-10-04 19:22:26 +02001765 if (board_usb_init(index, USB_INIT_HOST))
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001766 return -1;
1767#endif
Remy Bohmer172a1132008-09-16 14:55:43 +02001768 memset(&gohci, 0, sizeof(ohci_t));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001769
1770 /* align the storage */
1771 if ((__u32)&ghcca[0] & 0xff) {
1772 err("HCCA not aligned!!");
1773 return -1;
1774 }
1775 phcca = &ghcca[0];
1776 info("aligned ghcca %p", phcca);
1777 memset(&ohci_dev, 0, sizeof(struct ohci_device));
1778 if ((__u32)&ohci_dev.ed[0] & 0x7) {
1779 err("EDs not aligned!!");
1780 return -1;
1781 }
1782 memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1));
1783 if ((__u32)gtd & 0x7) {
1784 err("TDs not aligned!!");
1785 return -1;
1786 }
1787 ptd = gtd;
1788 gohci.hcca = phcca;
Remy Bohmer172a1132008-09-16 14:55:43 +02001789 memset(phcca, 0, sizeof(struct ohci_hcca));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001790
1791 gohci.disabled = 1;
1792 gohci.sleeping = 0;
1793 gohci.irq = -1;
Zhang Wei8d15efa2007-06-06 10:08:14 +02001794#ifdef CONFIG_PCI_OHCI
Sergei Poselenov0b4570f2008-05-22 01:15:53 +02001795 pdev = pci_find_devices(ohci_pci_ids, CONFIG_PCI_OHCI_DEVNO);
Zhang Wei8d15efa2007-06-06 10:08:14 +02001796
1797 if (pdev != -1) {
1798 u16 vid, did;
1799 u32 base;
1800 pci_read_config_word(pdev, PCI_VENDOR_ID, &vid);
1801 pci_read_config_word(pdev, PCI_DEVICE_ID, &did);
1802 printf("OHCI pci controller (%04x, %04x) found @(%d:%d:%d)\n",
1803 vid, did, (pdev >> 16) & 0xff,
1804 (pdev >> 11) & 0x1f, (pdev >> 8) & 0x7);
1805 pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base);
1806 printf("OHCI regs address 0x%08x\n", base);
1807 gohci.regs = (struct ohci_regs *)base;
1808 } else
1809 return -1;
1810#else
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001811 gohci.regs = (struct ohci_regs *)CONFIG_SYS_USB_OHCI_REGS_BASE;
Zhang Wei8d15efa2007-06-06 10:08:14 +02001812#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001813
1814 gohci.flags = 0;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001815 gohci.slot_name = CONFIG_SYS_USB_OHCI_SLOT_NAME;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001816
1817 if (hc_reset (&gohci) < 0) {
1818 hc_release_ohci (&gohci);
1819 err ("can't reset usb-%s", gohci.slot_name);
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001820#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001821 /* board dependant cleanup */
Mateusz Zalegad862f892013-10-04 19:22:26 +02001822 board_usb_cleanup(index, USB_INIT_HOST);
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001823#endif
1824
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001825#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001826 /* cpu dependant cleanup */
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001827 usb_cpu_init_fail();
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001828#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001829 return -1;
1830 }
1831
Remy Bohmer172a1132008-09-16 14:55:43 +02001832 if (hc_start(&gohci) < 0) {
1833 err("can't start usb-%s", gohci.slot_name);
1834 hc_release_ohci(&gohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001835 /* Initialization failed */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001836#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001837 /* board dependant cleanup */
1838 usb_board_stop();
1839#endif
1840
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001841#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001842 /* cpu dependant cleanup */
1843 usb_cpu_stop();
1844#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001845 return -1;
1846 }
1847
1848#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +02001849 ohci_dump(&gohci, 1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001850#else
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001851 mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001852#endif
1853 ohci_inited = 1;
1854 return 0;
1855}
1856
Lucas Stacha3231282012-09-26 00:14:34 +02001857int usb_lowlevel_stop(int index)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001858{
1859 /* this gets called really early - before the controller has */
1860 /* even been initialized! */
1861 if (!ohci_inited)
1862 return 0;
1863 /* TODO release any interrupts, etc. */
1864 /* call hc_release_ohci() here ? */
Remy Bohmer172a1132008-09-16 14:55:43 +02001865 hc_reset(&gohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001866
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001867#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001868 /* board dependant cleanup */
Remy Bohmer172a1132008-09-16 14:55:43 +02001869 if (usb_board_stop())
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001870 return -1;
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001871#endif
1872
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02001873#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001874 /* cpu dependant cleanup */
Remy Bohmer172a1132008-09-16 14:55:43 +02001875 if (usb_cpu_stop())
Markus Klotzbuecher98095512006-05-23 10:33:11 +02001876 return -1;
1877#endif
Remy Bohmer743dd492008-08-20 11:22:02 +02001878 /* This driver is no longer initialised. It needs a new low-level
1879 * init (board/cpu) before it can be used again. */
1880 ohci_inited = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001881 return 0;
1882}