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Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002/*
Zhang Wei8d15efa2007-06-06 10:08:14 +02003 * URB OHCI HCD (Host Controller Driver) for USB on the AT91RM9200 and PCI bus.
4 *
5 * Interrupt support is added. Now, it has been tested
6 * on ULI1575 chip and works well with USB keyboard.
7 *
8 * (C) Copyright 2007
9 * Zhang Wei, Freescale Semiconductor, Inc. <wei.zhang@freescale.com>
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020010 *
11 * (C) Copyright 2003
Detlev Zundelf1b3f2b2009-05-13 10:54:10 +020012 * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020013 *
14 * Note: Much of this code has been derived from Linux 2.4
15 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
16 * (C) Copyright 2000-2002 David Brownell
17 *
18 * Modified for the MP2USB by (C) Copyright 2005 Eric Benard
19 * ebenard@eukrea.com - based on s3c24x0's driver
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020020 */
21/*
22 * IMPORTANT NOTES
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +020023 * 1 - Read doc/README.generic_usb_ohci
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020024 * 2 - this driver is intended for use with USB Mass Storage Devices
Zhang Wei8d15efa2007-06-06 10:08:14 +020025 * (BBB) and USB keyboard. There is NO support for Isochronous pipes!
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +020026 * 2 - when running on a PQFP208 AT91RM9200, define CONFIG_AT91C_PQFP_UHPBUG
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020027 * to activate workaround for bug #41 or this driver will NOT work!
28 */
29
30#include <common.h>
Simon Glass63334482019-11-14 12:57:39 -070031#include <cpu_func.h>
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +020032#include <asm/byteorder.h>
Hans de Goede8a62c502015-05-10 14:10:25 +020033#include <dm.h>
34#include <errno.h>
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +020035
36#if defined(CONFIG_PCI_OHCI)
Zhang Wei8d15efa2007-06-06 10:08:14 +020037# include <pci.h>
Sergei Poselenov0b4570f2008-05-22 01:15:53 +020038#if !defined(CONFIG_PCI_OHCI_DEVNO)
39#define CONFIG_PCI_OHCI_DEVNO 0
40#endif
Markus Klotzbuecheraa219212006-05-30 16:56:14 +020041#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020042
43#include <malloc.h>
Simon Glass2dd337a2015-09-02 17:24:58 -060044#include <memalign.h>
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020045#include <usb.h>
Jean-Christophe PLAGNIOL-VILLARD8f6bcf42009-04-03 12:46:58 +020046
47#include "ohci.h"
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020048
Wolfgang Denkdcac38b2007-11-19 12:59:14 +010049#ifdef CONFIG_AT91RM9200
50#include <asm/arch/hardware.h> /* needed for AT91_USB_HOST_BASE */
51#endif
52
Masahiro Yamada7a5b2922014-11-06 14:59:35 +090053#if defined(CONFIG_CPU_ARM920T) || \
Heiko Schocher2e1134f2019-07-16 10:49:05 +020054 defined(CONFIG_PCI_OHCI) || \
55 defined(CONFIG_DM_PCI) || \
56 defined(CONFIG_SYS_OHCI_USE_NPS)
Markus Klotzbuecher98095512006-05-23 10:33:11 +020057# define OHCI_USE_NPS /* force NoPowerSwitching mode */
58#endif
59
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020060#undef OHCI_VERBOSE_DEBUG /* not always helpful */
Markus Klotzbuecherd209de62006-11-27 11:46:46 +010061#undef DEBUG
62#undef SHOW_INFO
63#undef OHCI_FILL_TRACE
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020064
65/* For initializing controller (mask in an HCFS mode too) */
66#define OHCI_CONTROL_INIT \
67 (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE
68
Heiko Schocherfe410a42019-07-16 10:49:03 +020069#if !CONFIG_IS_ENABLED(DM_USB)
Zhang Wei8d15efa2007-06-06 10:08:14 +020070#ifdef CONFIG_PCI_OHCI
71static struct pci_device_id ohci_pci_ids[] = {
72 {0x10b9, 0x5237}, /* ULI1575 PCI OHCI module ids */
David Saadae3b28422007-09-17 17:04:47 +020073 {0x1033, 0x0035}, /* NEC PCI OHCI module ids */
TsiChung Liew923f43a2008-01-11 20:42:58 -060074 {0x1131, 0x1561}, /* Philips 1561 PCI OHCI module ids */
Zhang Wei8d15efa2007-06-06 10:08:14 +020075 /* Please add supported PCI OHCI controller ids here */
76 {0, 0}
77};
78#endif
Heiko Schocherfe410a42019-07-16 10:49:03 +020079#endif
Zhang Wei8d15efa2007-06-06 10:08:14 +020080
Yuri Tikhonov11af42c2008-09-04 11:19:05 +020081#ifdef CONFIG_PCI_EHCI_DEVNO
82static struct pci_device_id ehci_pci_ids[] = {
83 {0x1131, 0x1562}, /* Philips 1562 PCI EHCI module ids */
84 /* Please add supported PCI EHCI controller ids here */
85 {0, 0}
86};
87#endif
88
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020089#ifdef DEBUG
90#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg)
91#else
Remy Bohmer172a1132008-09-16 14:55:43 +020092#define dbg(format, arg...) do {} while (0)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020093#endif /* DEBUG */
94#define err(format, arg...) printf("ERROR: " format "\n", ## arg)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020095#ifdef SHOW_INFO
96#define info(format, arg...) printf("INFO: " format "\n", ## arg)
97#else
Remy Bohmer172a1132008-09-16 14:55:43 +020098#define info(format, arg...) do {} while (0)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +020099#endif
100
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200101#ifdef CONFIG_SYS_OHCI_BE_CONTROLLER
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +0200102# define m16_swap(x) cpu_to_be16(x)
103# define m32_swap(x) cpu_to_be32(x)
Markus Klotzbuecherd209de62006-11-27 11:46:46 +0100104#else
Markus Klotzbuecher18f5ccb2007-06-06 11:49:35 +0200105# define m16_swap(x) cpu_to_le16(x)
106# define m32_swap(x) cpu_to_le32(x)
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +0200107#endif /* CONFIG_SYS_OHCI_BE_CONTROLLER */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200108
Wu, Joshc3857142015-07-27 11:40:18 +0800109/* We really should do proper cache flushing everywhere */
Hans de Goede8e41f662015-05-05 23:56:13 +0200110#define flush_dcache_buffer(addr, size) \
111 flush_dcache_range((unsigned long)(addr), \
112 ALIGN((unsigned long)(addr) + size, ARCH_DMA_MINALIGN))
113#define invalidate_dcache_buffer(addr, size) \
114 invalidate_dcache_range((unsigned long)(addr), \
115 ALIGN((unsigned long)(addr) + size, ARCH_DMA_MINALIGN))
Hans de Goede8e41f662015-05-05 23:56:13 +0200116
117/* Do not use sizeof(ed / td) as our ed / td structs contain extra members */
118#define flush_dcache_ed(addr) flush_dcache_buffer(addr, 16)
119#define flush_dcache_td(addr) flush_dcache_buffer(addr, 16)
120#define flush_dcache_iso_td(addr) flush_dcache_buffer(addr, 32)
121#define flush_dcache_hcca(addr) flush_dcache_buffer(addr, 256)
122#define invalidate_dcache_ed(addr) invalidate_dcache_buffer(addr, 16)
123#define invalidate_dcache_td(addr) invalidate_dcache_buffer(addr, 16)
124#define invalidate_dcache_iso_td(addr) invalidate_dcache_buffer(addr, 32)
125#define invalidate_dcache_hcca(addr) invalidate_dcache_buffer(addr, 256)
126
Sven Schwermer8a3cb9f12018-11-21 08:43:56 +0100127#if CONFIG_IS_ENABLED(DM_USB)
Hans de Goeded6cc1d12015-05-10 14:10:24 +0200128/*
129 * The various ohci_mdelay(1) calls in the code seem unnecessary. We keep
130 * them around when building for older boards not yet converted to the dm
131 * just in case (to avoid regressions), for dm this turns them into nops.
132 */
133#define ohci_mdelay(x)
134#else
135#define ohci_mdelay(x) mdelay(x)
136#endif
137
Sven Schwermer8a3cb9f12018-11-21 08:43:56 +0100138#if !CONFIG_IS_ENABLED(DM_USB)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200139/* global ohci_t */
140static ohci_t gohci;
141/* this must be aligned to a 256 byte boundary */
142struct ohci_hcca ghcca[1];
Hans de Goede8a62c502015-05-10 14:10:25 +0200143#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200144
Hans de Goede516c9872015-05-05 23:56:11 +0200145/* mapping of the OHCI CC status to error codes */
146static int cc_to_error[16] = {
147 /* No Error */ 0,
148 /* CRC Error */ USB_ST_CRC_ERR,
149 /* Bit Stuff */ USB_ST_BIT_ERR,
150 /* Data Togg */ USB_ST_CRC_ERR,
151 /* Stall */ USB_ST_STALLED,
152 /* DevNotResp */ -1,
153 /* PIDCheck */ USB_ST_BIT_ERR,
154 /* UnExpPID */ USB_ST_BIT_ERR,
155 /* DataOver */ USB_ST_BUF_ERR,
156 /* DataUnder */ USB_ST_BUF_ERR,
157 /* reservd */ -1,
158 /* reservd */ -1,
159 /* BufferOver */ USB_ST_BUF_ERR,
160 /* BuffUnder */ USB_ST_BUF_ERR,
161 /* Not Access */ -1,
162 /* Not Access */ -1
163};
164
165static const char *cc_to_string[16] = {
166 "No Error",
167 "CRC: Last data packet from endpoint contained a CRC error.",
168 "BITSTUFFING: Last data packet from endpoint contained a bit " \
169 "stuffing violation",
170 "DATATOGGLEMISMATCH: Last packet from endpoint had data toggle PID\n" \
171 "that did not match the expected value.",
172 "STALL: TD was moved to the Done Queue because the endpoint returned" \
173 " a STALL PID",
174 "DEVICENOTRESPONDING: Device did not respond to token (IN) or did\n" \
175 "not provide a handshake (OUT)",
176 "PIDCHECKFAILURE: Check bits on PID from endpoint failed on data PID\n"\
177 "(IN) or handshake (OUT)",
178 "UNEXPECTEDPID: Receive PID was not valid when encountered or PID\n" \
179 "value is not defined.",
180 "DATAOVERRUN: The amount of data returned by the endpoint exceeded\n" \
181 "either the size of the maximum data packet allowed\n" \
182 "from the endpoint (found in MaximumPacketSize field\n" \
183 "of ED) or the remaining buffer size.",
184 "DATAUNDERRUN: The endpoint returned less than MaximumPacketSize\n" \
185 "and that amount was not sufficient to fill the\n" \
186 "specified buffer",
187 "reserved1",
188 "reserved2",
189 "BUFFEROVERRUN: During an IN, HC received data from endpoint faster\n" \
190 "than it could be written to system memory",
191 "BUFFERUNDERRUN: During an OUT, HC could not retrieve data from\n" \
192 "system memory fast enough to keep up with data USB " \
193 "data rate.",
194 "NOT ACCESSED: This code is set by software before the TD is placed" \
195 "on a list to be processed by the HC.(1)",
196 "NOT ACCESSED: This code is set by software before the TD is placed" \
197 "on a list to be processed by the HC.(2)",
198};
199
Remy Bohmer172a1132008-09-16 14:55:43 +0200200static inline u32 roothub_a(struct ohci *hc)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500201 { return ohci_readl(&hc->regs->roothub.a); }
Remy Bohmer172a1132008-09-16 14:55:43 +0200202static inline u32 roothub_b(struct ohci *hc)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500203 { return ohci_readl(&hc->regs->roothub.b); }
Remy Bohmer172a1132008-09-16 14:55:43 +0200204static inline u32 roothub_status(struct ohci *hc)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500205 { return ohci_readl(&hc->regs->roothub.status); }
Remy Bohmer172a1132008-09-16 14:55:43 +0200206static inline u32 roothub_portstatus(struct ohci *hc, int i)
Becky Bruce4abaacb2010-06-30 13:05:44 -0500207 { return ohci_readl(&hc->regs->roothub.portstatus[i]); }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200208
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200209/* forward declaration */
Hans de Goede2a240e72015-05-05 23:56:07 +0200210static int hc_interrupt(ohci_t *ohci);
211static void td_submit_job(ohci_t *ohci, struct usb_device *dev,
212 unsigned long pipe, void *buffer, int transfer_len,
Remy Bohmer172a1132008-09-16 14:55:43 +0200213 struct devrequest *setup, urb_priv_t *urb,
214 int interval);
Hans de Goede516c9872015-05-05 23:56:11 +0200215static int ep_link(ohci_t * ohci, ed_t * ed);
216static int ep_unlink(ohci_t * ohci, ed_t * ed);
217static ed_t *ep_add_ed(ohci_dev_t *ohci_dev, struct usb_device *usb_dev,
218 unsigned long pipe, int interval, int load);
219
220/*-------------------------------------------------------------------------*/
221
222/* TDs ... */
223static struct td *td_alloc(ohci_dev_t *ohci_dev, struct usb_device *usb_dev)
224{
225 int i;
226 struct td *td;
227
228 td = NULL;
229 for (i = 0; i < NUM_TD; i++)
230 {
231 if (ohci_dev->tds[i].usb_dev == NULL)
232 {
233 td = &ohci_dev->tds[i];
234 td->usb_dev = usb_dev;
235 break;
236 }
237 }
238
239 return td;
240}
241
242static inline void ed_free(struct ed *ed)
243{
244 ed->usb_dev = NULL;
245}
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200246
247/*-------------------------------------------------------------------------*
248 * URB support functions
249 *-------------------------------------------------------------------------*/
250
251/* free HCD-private data associated with this URB */
252
Remy Bohmer172a1132008-09-16 14:55:43 +0200253static void urb_free_priv(urb_priv_t *urb)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200254{
255 int i;
256 int last;
Remy Bohmer172a1132008-09-16 14:55:43 +0200257 struct td *td;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200258
259 last = urb->length - 1;
260 if (last >= 0) {
261 for (i = 0; i <= last; i++) {
262 td = urb->td[i];
263 if (td) {
264 td->usb_dev = NULL;
265 urb->td[i] = NULL;
266 }
267 }
268 }
Zhang Wei8d15efa2007-06-06 10:08:14 +0200269 free(urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200270}
271
272/*-------------------------------------------------------------------------*/
273
274#ifdef DEBUG
Hans de Goede2a240e72015-05-05 23:56:07 +0200275static int sohci_get_current_frame_number(ohci_t *ohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200276
277/* debug| print the main components of an URB
278 * small: 0) header + data packets 1) just header */
279
Hans de Goede2a240e72015-05-05 23:56:07 +0200280static void pkt_print(ohci_t *ohci, urb_priv_t *purb, struct usb_device *dev,
Remy Bohmer172a1132008-09-16 14:55:43 +0200281 unsigned long pipe, void *buffer, int transfer_len,
282 struct devrequest *setup, char *str, int small)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200283{
Remy Bohmer172a1132008-09-16 14:55:43 +0200284 dbg("%s URB:[%4x] dev:%2lu,ep:%2lu-%c,type:%s,len:%d/%d stat:%#lx",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200285 str,
Hans de Goede2a240e72015-05-05 23:56:07 +0200286 sohci_get_current_frame_number(ohci),
Remy Bohmer172a1132008-09-16 14:55:43 +0200287 usb_pipedevice(pipe),
288 usb_pipeendpoint(pipe),
289 usb_pipeout(pipe)? 'O': 'I',
290 usb_pipetype(pipe) < 2 ? \
291 (usb_pipeint(pipe)? "INTR": "ISOC"): \
292 (usb_pipecontrol(pipe)? "CTRL": "BULK"),
Zhang Wei8d15efa2007-06-06 10:08:14 +0200293 (purb ? purb->actual_length : 0),
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200294 transfer_len, dev->status);
295#ifdef OHCI_VERBOSE_DEBUG
296 if (!small) {
297 int i, len;
298
Remy Bohmer172a1132008-09-16 14:55:43 +0200299 if (usb_pipecontrol(pipe)) {
300 printf(__FILE__ ": cmd(8):");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200301 for (i = 0; i < 8 ; i++)
Remy Bohmer172a1132008-09-16 14:55:43 +0200302 printf(" %02x", ((__u8 *) setup) [i]);
303 printf("\n");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200304 }
305 if (transfer_len > 0 && buffer) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200306 printf(__FILE__ ": data(%d/%d):",
Zhang Wei8d15efa2007-06-06 10:08:14 +0200307 (purb ? purb->actual_length : 0),
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200308 transfer_len);
Remy Bohmer172a1132008-09-16 14:55:43 +0200309 len = usb_pipeout(pipe)? transfer_len:
Zhang Wei8d15efa2007-06-06 10:08:14 +0200310 (purb ? purb->actual_length : 0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200311 for (i = 0; i < 16 && i < len; i++)
Remy Bohmer172a1132008-09-16 14:55:43 +0200312 printf(" %02x", ((__u8 *) buffer) [i]);
313 printf("%s\n", i < len? "...": "");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200314 }
315 }
316#endif
317}
318
Remy Bohmer172a1132008-09-16 14:55:43 +0200319/* just for debugging; prints non-empty branches of the int ed tree
320 * inclusive iso eds */
321void ep_print_int_eds(ohci_t *ohci, char *str)
322{
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200323 int i, j;
Remy Bohmer172a1132008-09-16 14:55:43 +0200324 __u32 *ed_p;
325 for (i = 0; i < 32; i++) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200326 j = 5;
327 ed_p = &(ohci->hcca->int_table [i]);
328 if (*ed_p == 0)
329 continue;
Hans de Goede8e41f662015-05-05 23:56:13 +0200330 invalidate_dcache_ed(ed_p);
Remy Bohmer172a1132008-09-16 14:55:43 +0200331 printf(__FILE__ ": %s branch int %2d(%2x):", str, i, i);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200332 while (*ed_p != 0 && j--) {
333 ed_t *ed = (ed_t *)m32_swap(ed_p);
Hans de Goede8e41f662015-05-05 23:56:13 +0200334 invalidate_dcache_ed(ed);
Remy Bohmer172a1132008-09-16 14:55:43 +0200335 printf(" ed: %4x;", ed->hwINFO);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200336 ed_p = &ed->hwNextED;
337 }
Remy Bohmer172a1132008-09-16 14:55:43 +0200338 printf("\n");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200339 }
340}
341
Remy Bohmer172a1132008-09-16 14:55:43 +0200342static void ohci_dump_intr_mask(char *label, __u32 mask)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200343{
Remy Bohmer172a1132008-09-16 14:55:43 +0200344 dbg("%s: 0x%08x%s%s%s%s%s%s%s%s%s",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200345 label,
346 mask,
347 (mask & OHCI_INTR_MIE) ? " MIE" : "",
348 (mask & OHCI_INTR_OC) ? " OC" : "",
349 (mask & OHCI_INTR_RHSC) ? " RHSC" : "",
350 (mask & OHCI_INTR_FNO) ? " FNO" : "",
351 (mask & OHCI_INTR_UE) ? " UE" : "",
352 (mask & OHCI_INTR_RD) ? " RD" : "",
353 (mask & OHCI_INTR_SF) ? " SF" : "",
354 (mask & OHCI_INTR_WDH) ? " WDH" : "",
355 (mask & OHCI_INTR_SO) ? " SO" : ""
356 );
357}
358
Remy Bohmer172a1132008-09-16 14:55:43 +0200359static void maybe_print_eds(char *label, __u32 value)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200360{
361 ed_t *edp = (ed_t *)value;
362
363 if (value) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200364 dbg("%s %08x", label, value);
Hans de Goede8e41f662015-05-05 23:56:13 +0200365 invalidate_dcache_ed(edp);
Remy Bohmer172a1132008-09-16 14:55:43 +0200366 dbg("%08x", edp->hwINFO);
367 dbg("%08x", edp->hwTailP);
368 dbg("%08x", edp->hwHeadP);
369 dbg("%08x", edp->hwNextED);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200370 }
371}
372
Remy Bohmer172a1132008-09-16 14:55:43 +0200373static char *hcfs2string(int state)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200374{
375 switch (state) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200376 case OHCI_USB_RESET: return "reset";
377 case OHCI_USB_RESUME: return "resume";
378 case OHCI_USB_OPER: return "operational";
379 case OHCI_USB_SUSPEND: return "suspend";
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200380 }
381 return "?";
382}
383
384/* dump control and status registers */
Remy Bohmer172a1132008-09-16 14:55:43 +0200385static void ohci_dump_status(ohci_t *controller)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200386{
387 struct ohci_regs *regs = controller->regs;
388 __u32 temp;
389
Becky Bruce4abaacb2010-06-30 13:05:44 -0500390 temp = ohci_readl(&regs->revision) & 0xff;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200391 if (temp != 0x10)
Remy Bohmer172a1132008-09-16 14:55:43 +0200392 dbg("spec %d.%d", (temp >> 4), (temp & 0x0f));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200393
Becky Bruce4abaacb2010-06-30 13:05:44 -0500394 temp = ohci_readl(&regs->control);
Remy Bohmer172a1132008-09-16 14:55:43 +0200395 dbg("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200396 (temp & OHCI_CTRL_RWE) ? " RWE" : "",
397 (temp & OHCI_CTRL_RWC) ? " RWC" : "",
398 (temp & OHCI_CTRL_IR) ? " IR" : "",
Remy Bohmer172a1132008-09-16 14:55:43 +0200399 hcfs2string(temp & OHCI_CTRL_HCFS),
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200400 (temp & OHCI_CTRL_BLE) ? " BLE" : "",
401 (temp & OHCI_CTRL_CLE) ? " CLE" : "",
402 (temp & OHCI_CTRL_IE) ? " IE" : "",
403 (temp & OHCI_CTRL_PLE) ? " PLE" : "",
404 temp & OHCI_CTRL_CBSR
405 );
406
Becky Bruce4abaacb2010-06-30 13:05:44 -0500407 temp = ohci_readl(&regs->cmdstatus);
Remy Bohmer172a1132008-09-16 14:55:43 +0200408 dbg("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200409 (temp & OHCI_SOC) >> 16,
410 (temp & OHCI_OCR) ? " OCR" : "",
411 (temp & OHCI_BLF) ? " BLF" : "",
412 (temp & OHCI_CLF) ? " CLF" : "",
413 (temp & OHCI_HCR) ? " HCR" : ""
414 );
415
Becky Bruce4abaacb2010-06-30 13:05:44 -0500416 ohci_dump_intr_mask("intrstatus", ohci_readl(&regs->intrstatus));
417 ohci_dump_intr_mask("intrenable", ohci_readl(&regs->intrenable));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200418
Becky Bruce4abaacb2010-06-30 13:05:44 -0500419 maybe_print_eds("ed_periodcurrent",
420 ohci_readl(&regs->ed_periodcurrent));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200421
Becky Bruce4abaacb2010-06-30 13:05:44 -0500422 maybe_print_eds("ed_controlhead", ohci_readl(&regs->ed_controlhead));
423 maybe_print_eds("ed_controlcurrent",
424 ohci_readl(&regs->ed_controlcurrent));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200425
Becky Bruce4abaacb2010-06-30 13:05:44 -0500426 maybe_print_eds("ed_bulkhead", ohci_readl(&regs->ed_bulkhead));
427 maybe_print_eds("ed_bulkcurrent", ohci_readl(&regs->ed_bulkcurrent));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200428
Becky Bruce4abaacb2010-06-30 13:05:44 -0500429 maybe_print_eds("donehead", ohci_readl(&regs->donehead));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200430}
431
Remy Bohmer172a1132008-09-16 14:55:43 +0200432static void ohci_dump_roothub(ohci_t *controller, int verbose)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200433{
434 __u32 temp, ndp, i;
435
Remy Bohmer172a1132008-09-16 14:55:43 +0200436 temp = roothub_a(controller);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200437 ndp = (temp & RH_A_NDP);
438#ifdef CONFIG_AT91C_PQFP_UHPBUG
439 ndp = (ndp == 2) ? 1:0;
440#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200441 if (verbose) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200442 dbg("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200443 ((temp & RH_A_POTPGT) >> 24) & 0xff,
444 (temp & RH_A_NOCP) ? " NOCP" : "",
445 (temp & RH_A_OCPM) ? " OCPM" : "",
446 (temp & RH_A_DT) ? " DT" : "",
447 (temp & RH_A_NPS) ? " NPS" : "",
448 (temp & RH_A_PSM) ? " PSM" : "",
449 ndp
450 );
Remy Bohmer172a1132008-09-16 14:55:43 +0200451 temp = roothub_b(controller);
452 dbg("roothub.b: %08x PPCM=%04x DR=%04x",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200453 temp,
454 (temp & RH_B_PPCM) >> 16,
455 (temp & RH_B_DR)
456 );
Remy Bohmer172a1132008-09-16 14:55:43 +0200457 temp = roothub_status(controller);
458 dbg("roothub.status: %08x%s%s%s%s%s%s",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200459 temp,
460 (temp & RH_HS_CRWE) ? " CRWE" : "",
461 (temp & RH_HS_OCIC) ? " OCIC" : "",
462 (temp & RH_HS_LPSC) ? " LPSC" : "",
463 (temp & RH_HS_DRWE) ? " DRWE" : "",
464 (temp & RH_HS_OCI) ? " OCI" : "",
465 (temp & RH_HS_LPS) ? " LPS" : ""
466 );
467 }
468
469 for (i = 0; i < ndp; i++) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200470 temp = roothub_portstatus(controller, i);
471 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 +0200472 i,
473 temp,
474 (temp & RH_PS_PRSC) ? " PRSC" : "",
475 (temp & RH_PS_OCIC) ? " OCIC" : "",
476 (temp & RH_PS_PSSC) ? " PSSC" : "",
477 (temp & RH_PS_PESC) ? " PESC" : "",
478 (temp & RH_PS_CSC) ? " CSC" : "",
479
480 (temp & RH_PS_LSDA) ? " LSDA" : "",
481 (temp & RH_PS_PPS) ? " PPS" : "",
482 (temp & RH_PS_PRS) ? " PRS" : "",
483 (temp & RH_PS_POCI) ? " POCI" : "",
484 (temp & RH_PS_PSS) ? " PSS" : "",
485
486 (temp & RH_PS_PES) ? " PES" : "",
487 (temp & RH_PS_CCS) ? " CCS" : ""
488 );
489 }
490}
491
Remy Bohmer172a1132008-09-16 14:55:43 +0200492static void ohci_dump(ohci_t *controller, int verbose)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200493{
Remy Bohmer172a1132008-09-16 14:55:43 +0200494 dbg("OHCI controller usb-%s state", controller->slot_name);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200495
496 /* dumps some of the state we know about */
Remy Bohmer172a1132008-09-16 14:55:43 +0200497 ohci_dump_status(controller);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200498 if (verbose)
Remy Bohmer172a1132008-09-16 14:55:43 +0200499 ep_print_int_eds(controller, "hcca");
Hans de Goede8e41f662015-05-05 23:56:13 +0200500 invalidate_dcache_hcca(controller->hcca);
Remy Bohmer172a1132008-09-16 14:55:43 +0200501 dbg("hcca frame #%04x", controller->hcca->frame_no);
502 ohci_dump_roothub(controller, 1);
Stefan Roese41e74eb2008-03-05 12:29:32 +0100503}
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200504#endif /* DEBUG */
505
506/*-------------------------------------------------------------------------*
507 * Interface functions (URB)
508 *-------------------------------------------------------------------------*/
509
510/* get a transfer request */
511
Hans de Goede0c0e9602015-05-05 23:56:08 +0200512int sohci_submit_job(ohci_t *ohci, ohci_dev_t *ohci_dev, urb_priv_t *urb,
513 struct devrequest *setup)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200514{
Remy Bohmer172a1132008-09-16 14:55:43 +0200515 ed_t *ed;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200516 urb_priv_t *purb_priv = urb;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200517 int i, size = 0;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200518 struct usb_device *dev = urb->dev;
519 unsigned long pipe = urb->pipe;
520 void *buffer = urb->transfer_buffer;
521 int transfer_len = urb->transfer_buffer_length;
522 int interval = urb->interval;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200523
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200524 /* when controller's hung, permit only roothub cleanup attempts
525 * such as powering down ports */
526 if (ohci->disabled) {
527 err("sohci_submit_job: EPIPE");
528 return -1;
529 }
Markus Klotzbuechere3af6d52007-03-26 11:21:05 +0200530
Remy Bohmer172a1132008-09-16 14:55:43 +0200531 /* we're about to begin a new transaction here so mark the
532 * URB unfinished */
Zhang Wei8d15efa2007-06-06 10:08:14 +0200533 urb->finished = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200534
535 /* every endpoint has a ed, locate and fill it */
Hans de Goede0c0e9602015-05-05 23:56:08 +0200536 ed = ep_add_ed(ohci_dev, dev, pipe, interval, 1);
Remy Bohmer172a1132008-09-16 14:55:43 +0200537 if (!ed) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200538 err("sohci_submit_job: ENOMEM");
539 return -1;
540 }
541
542 /* for the private part of the URB we need the number of TDs (size) */
Remy Bohmer172a1132008-09-16 14:55:43 +0200543 switch (usb_pipetype(pipe)) {
544 case PIPE_BULK: /* one TD for every 4096 Byte */
545 size = (transfer_len - 1) / 4096 + 1;
546 break;
547 case PIPE_CONTROL:/* 1 TD for setup, 1 for ACK and 1 for every 4096 B */
548 size = (transfer_len == 0)? 2:
549 (transfer_len - 1) / 4096 + 3;
550 break;
551 case PIPE_INTERRUPT: /* 1 TD */
552 size = 1;
553 break;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200554 }
555
Zhang Wei8d15efa2007-06-06 10:08:14 +0200556 ed->purb = urb;
557
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200558 if (size >= (N_URB_TD - 1)) {
559 err("need %d TDs, only have %d", size, N_URB_TD);
560 return -1;
561 }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200562 purb_priv->pipe = pipe;
563
564 /* fill the private part of the URB */
565 purb_priv->length = size;
566 purb_priv->ed = ed;
567 purb_priv->actual_length = 0;
568
569 /* allocate the TDs */
570 /* note that td[0] was allocated in ep_add_ed */
571 for (i = 0; i < size; i++) {
Hans de Goedee5ef4212015-05-05 23:56:09 +0200572 purb_priv->td[i] = td_alloc(ohci_dev, dev);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200573 if (!purb_priv->td[i]) {
574 purb_priv->length = i;
Remy Bohmer172a1132008-09-16 14:55:43 +0200575 urb_free_priv(purb_priv);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200576 err("sohci_submit_job: ENOMEM");
577 return -1;
578 }
579 }
580
581 if (ed->state == ED_NEW || (ed->state & ED_DEL)) {
Remy Bohmer172a1132008-09-16 14:55:43 +0200582 urb_free_priv(purb_priv);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200583 err("sohci_submit_job: EINVAL");
584 return -1;
585 }
586
587 /* link the ed into a chain if is not already */
588 if (ed->state != ED_OPER)
Remy Bohmer172a1132008-09-16 14:55:43 +0200589 ep_link(ohci, ed);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200590
591 /* fill the TDs and link it to the ed */
Hans de Goede2a240e72015-05-05 23:56:07 +0200592 td_submit_job(ohci, dev, pipe, buffer, transfer_len,
Remy Bohmer172a1132008-09-16 14:55:43 +0200593 setup, purb_priv, interval);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200594
595 return 0;
596}
597
598/*-------------------------------------------------------------------------*/
599
600#ifdef DEBUG
601/* tell us the current USB frame number */
Hans de Goede2a240e72015-05-05 23:56:07 +0200602static int sohci_get_current_frame_number(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200603{
Hans de Goede8e41f662015-05-05 23:56:13 +0200604 invalidate_dcache_hcca(ohci->hcca);
Remy Bohmer172a1132008-09-16 14:55:43 +0200605 return m16_swap(ohci->hcca->frame_no);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200606}
607#endif
608
609/*-------------------------------------------------------------------------*
610 * ED handling functions
611 *-------------------------------------------------------------------------*/
612
Zhang Wei8d15efa2007-06-06 10:08:14 +0200613/* search for the right branch to insert an interrupt ed into the int tree
614 * do some load ballancing;
615 * returns the branch and
616 * sets the interval to interval = 2^integer (ld (interval)) */
617
Remy Bohmer172a1132008-09-16 14:55:43 +0200618static int ep_int_ballance(ohci_t *ohci, int interval, int load)
Zhang Wei8d15efa2007-06-06 10:08:14 +0200619{
620 int i, branch = 0;
621
622 /* search for the least loaded interrupt endpoint
623 * branch of all 32 branches
624 */
625 for (i = 0; i < 32; i++)
626 if (ohci->ohci_int_load [branch] > ohci->ohci_int_load [i])
627 branch = i;
628
629 branch = branch % interval;
630 for (i = branch; i < 32; i += interval)
631 ohci->ohci_int_load [i] += load;
632
633 return branch;
634}
635
636/*-------------------------------------------------------------------------*/
637
638/* 2^int( ld (inter)) */
639
Remy Bohmer172a1132008-09-16 14:55:43 +0200640static int ep_2_n_interval(int inter)
Zhang Wei8d15efa2007-06-06 10:08:14 +0200641{
642 int i;
Remy Bohmer172a1132008-09-16 14:55:43 +0200643 for (i = 0; ((inter >> i) > 1) && (i < 5); i++);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200644 return 1 << i;
645}
646
647/*-------------------------------------------------------------------------*/
648
649/* the int tree is a binary tree
Remy Bohmer172a1132008-09-16 14:55:43 +0200650 * in order to process it sequentially the indexes of the branches have to
651 * be mapped the mapping reverses the bits of a word of num_bits length */
652static int ep_rev(int num_bits, int word)
Zhang Wei8d15efa2007-06-06 10:08:14 +0200653{
654 int i, wout = 0;
655
656 for (i = 0; i < num_bits; i++)
657 wout |= (((word >> i) & 1) << (num_bits - i - 1));
658 return wout;
659}
660
661/*-------------------------------------------------------------------------*
662 * ED handling functions
663 *-------------------------------------------------------------------------*/
664
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200665/* link an ed into one of the HC chains */
666
Remy Bohmer172a1132008-09-16 14:55:43 +0200667static int ep_link(ohci_t *ohci, ed_t *edi)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200668{
669 volatile ed_t *ed = edi;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200670 int int_branch;
671 int i;
672 int inter;
673 int interval;
674 int load;
Remy Bohmer172a1132008-09-16 14:55:43 +0200675 __u32 *ed_p;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200676
677 ed->state = ED_OPER;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200678 ed->int_interval = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200679
680 switch (ed->type) {
681 case PIPE_CONTROL:
682 ed->hwNextED = 0;
Hans de Goede8e41f662015-05-05 23:56:13 +0200683 flush_dcache_ed(ed);
Remy Bohmer172a1132008-09-16 14:55:43 +0200684 if (ohci->ed_controltail == NULL)
Andre Przywarac114a982016-10-21 02:24:29 +0100685 ohci_writel((uintptr_t)ed, &ohci->regs->ed_controlhead);
Remy Bohmer172a1132008-09-16 14:55:43 +0200686 else
687 ohci->ed_controltail->hwNextED =
688 m32_swap((unsigned long)ed);
689
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200690 ed->ed_prev = ohci->ed_controltail;
691 if (!ohci->ed_controltail && !ohci->ed_rm_list[0] &&
692 !ohci->ed_rm_list[1] && !ohci->sleeping) {
693 ohci->hc_control |= OHCI_CTRL_CLE;
Becky Bruce4abaacb2010-06-30 13:05:44 -0500694 ohci_writel(ohci->hc_control, &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200695 }
696 ohci->ed_controltail = edi;
697 break;
698
699 case PIPE_BULK:
700 ed->hwNextED = 0;
Hans de Goede8e41f662015-05-05 23:56:13 +0200701 flush_dcache_ed(ed);
Remy Bohmer172a1132008-09-16 14:55:43 +0200702 if (ohci->ed_bulktail == NULL)
Andre Przywarac114a982016-10-21 02:24:29 +0100703 ohci_writel((uintptr_t)ed, &ohci->regs->ed_bulkhead);
Remy Bohmer172a1132008-09-16 14:55:43 +0200704 else
705 ohci->ed_bulktail->hwNextED =
706 m32_swap((unsigned long)ed);
707
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200708 ed->ed_prev = ohci->ed_bulktail;
709 if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] &&
710 !ohci->ed_rm_list[1] && !ohci->sleeping) {
711 ohci->hc_control |= OHCI_CTRL_BLE;
Becky Bruce4abaacb2010-06-30 13:05:44 -0500712 ohci_writel(ohci->hc_control, &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200713 }
714 ohci->ed_bulktail = edi;
715 break;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200716
717 case PIPE_INTERRUPT:
718 load = ed->int_load;
Remy Bohmer172a1132008-09-16 14:55:43 +0200719 interval = ep_2_n_interval(ed->int_period);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200720 ed->int_interval = interval;
Remy Bohmer172a1132008-09-16 14:55:43 +0200721 int_branch = ep_int_ballance(ohci, interval, load);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200722 ed->int_branch = int_branch;
723
Remy Bohmer172a1132008-09-16 14:55:43 +0200724 for (i = 0; i < ep_rev(6, interval); i += inter) {
Zhang Wei8d15efa2007-06-06 10:08:14 +0200725 inter = 1;
Remy Bohmer172a1132008-09-16 14:55:43 +0200726 for (ed_p = &(ohci->hcca->int_table[\
727 ep_rev(5, i) + int_branch]);
728 (*ed_p != 0) &&
729 (((ed_t *)ed_p)->int_interval >= interval);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200730 ed_p = &(((ed_t *)ed_p)->hwNextED))
Remy Bohmer172a1132008-09-16 14:55:43 +0200731 inter = ep_rev(6,
732 ((ed_t *)ed_p)->int_interval);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200733 ed->hwNextED = *ed_p;
Hans de Goede8e41f662015-05-05 23:56:13 +0200734 flush_dcache_ed(ed);
Martin Krause8a588192007-08-21 12:40:34 +0200735 *ed_p = m32_swap((unsigned long)ed);
Hans de Goede8e41f662015-05-05 23:56:13 +0200736 flush_dcache_hcca(ohci->hcca);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200737 }
738 break;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200739 }
740 return 0;
741}
742
743/*-------------------------------------------------------------------------*/
744
Zhang Wei8d15efa2007-06-06 10:08:14 +0200745/* scan the periodic table to find and unlink this ED */
Remy Bohmer172a1132008-09-16 14:55:43 +0200746static void periodic_unlink(struct ohci *ohci, volatile struct ed *ed,
747 unsigned index, unsigned period)
Zhang Wei8d15efa2007-06-06 10:08:14 +0200748{
Hans de Goede8e41f662015-05-05 23:56:13 +0200749 __maybe_unused unsigned long aligned_ed_p;
750
Zhang Wei8d15efa2007-06-06 10:08:14 +0200751 for (; index < NUM_INTS; index += period) {
752 __u32 *ed_p = &ohci->hcca->int_table [index];
753
754 /* ED might have been unlinked through another path */
755 while (*ed_p != 0) {
Andre Przywarac114a982016-10-21 02:24:29 +0100756 if (((struct ed *)(uintptr_t)
Remy Bohmer172a1132008-09-16 14:55:43 +0200757 m32_swap((unsigned long)ed_p)) == ed) {
Zhang Wei8d15efa2007-06-06 10:08:14 +0200758 *ed_p = ed->hwNextED;
Hans de Goede8e41f662015-05-05 23:56:13 +0200759 aligned_ed_p = (unsigned long)ed_p;
760 aligned_ed_p &= ~(ARCH_DMA_MINALIGN - 1);
761 flush_dcache_range(aligned_ed_p,
762 aligned_ed_p + ARCH_DMA_MINALIGN);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200763 break;
764 }
Andre Przywarac114a982016-10-21 02:24:29 +0100765 ed_p = &(((struct ed *)(uintptr_t)
Remy Bohmer172a1132008-09-16 14:55:43 +0200766 m32_swap((unsigned long)ed_p))->hwNextED);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200767 }
768 }
769}
770
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200771/* unlink an ed from one of the HC chains.
772 * just the link to the ed is unlinked.
773 * the link from the ed still points to another operational ed or 0
774 * so the HC can eventually finish the processing of the unlinked ed */
775
Remy Bohmer172a1132008-09-16 14:55:43 +0200776static int ep_unlink(ohci_t *ohci, ed_t *edi)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200777{
Markus Klotzbuecher661ffe52006-11-27 11:43:09 +0100778 volatile ed_t *ed = edi;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200779 int i;
Markus Klotzbuecher661ffe52006-11-27 11:43:09 +0100780
Remy Bohmer172a1132008-09-16 14:55:43 +0200781 ed->hwINFO |= m32_swap(OHCI_ED_SKIP);
Hans de Goede8e41f662015-05-05 23:56:13 +0200782 flush_dcache_ed(ed);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200783
784 switch (ed->type) {
785 case PIPE_CONTROL:
786 if (ed->ed_prev == NULL) {
787 if (!ed->hwNextED) {
788 ohci->hc_control &= ~OHCI_CTRL_CLE;
Becky Bruce4abaacb2010-06-30 13:05:44 -0500789 ohci_writel(ohci->hc_control,
790 &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200791 }
Becky Bruce4abaacb2010-06-30 13:05:44 -0500792 ohci_writel(m32_swap(*((__u32 *)&ed->hwNextED)),
Remy Bohmer172a1132008-09-16 14:55:43 +0200793 &ohci->regs->ed_controlhead);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200794 } else {
795 ed->ed_prev->hwNextED = ed->hwNextED;
Hans de Goede8e41f662015-05-05 23:56:13 +0200796 flush_dcache_ed(ed->ed_prev);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200797 }
798 if (ohci->ed_controltail == ed) {
799 ohci->ed_controltail = ed->ed_prev;
800 } else {
Andre Przywarac114a982016-10-21 02:24:29 +0100801 ((ed_t *)(uintptr_t)m32_swap(
Remy Bohmer172a1132008-09-16 14:55:43 +0200802 *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200803 }
804 break;
805
806 case PIPE_BULK:
807 if (ed->ed_prev == NULL) {
808 if (!ed->hwNextED) {
809 ohci->hc_control &= ~OHCI_CTRL_BLE;
Becky Bruce4abaacb2010-06-30 13:05:44 -0500810 ohci_writel(ohci->hc_control,
811 &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200812 }
Becky Bruce4abaacb2010-06-30 13:05:44 -0500813 ohci_writel(m32_swap(*((__u32 *)&ed->hwNextED)),
Remy Bohmer172a1132008-09-16 14:55:43 +0200814 &ohci->regs->ed_bulkhead);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200815 } else {
816 ed->ed_prev->hwNextED = ed->hwNextED;
Hans de Goede8e41f662015-05-05 23:56:13 +0200817 flush_dcache_ed(ed->ed_prev);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200818 }
819 if (ohci->ed_bulktail == ed) {
820 ohci->ed_bulktail = ed->ed_prev;
821 } else {
Andre Przywarac114a982016-10-21 02:24:29 +0100822 ((ed_t *)(uintptr_t)m32_swap(
Remy Bohmer172a1132008-09-16 14:55:43 +0200823 *((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200824 }
825 break;
Zhang Wei8d15efa2007-06-06 10:08:14 +0200826
827 case PIPE_INTERRUPT:
Remy Bohmer172a1132008-09-16 14:55:43 +0200828 periodic_unlink(ohci, ed, 0, 1);
Zhang Wei8d15efa2007-06-06 10:08:14 +0200829 for (i = ed->int_branch; i < 32; i += ed->int_interval)
830 ohci->ohci_int_load[i] -= ed->int_load;
831 break;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200832 }
833 ed->state = ED_UNLINK;
834 return 0;
835}
836
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200837/*-------------------------------------------------------------------------*/
838
Markus Klotzbuecheraa219212006-05-30 16:56:14 +0200839/* add/reinit an endpoint; this should be done once at the
840 * usb_set_configuration command, but the USB stack is a little bit
841 * stateless so we do it at every transaction if the state of the ed
842 * is ED_NEW then a dummy td is added and the state is changed to
843 * ED_UNLINK in all other cases the state is left unchanged the ed
844 * info fields are setted anyway even though most of them should not
845 * change
846 */
Hans de Goede0c0e9602015-05-05 23:56:08 +0200847static ed_t *ep_add_ed(ohci_dev_t *ohci_dev, struct usb_device *usb_dev,
848 unsigned long pipe, int interval, int load)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200849{
850 td_t *td;
851 ed_t *ed_ret;
852 volatile ed_t *ed;
853
Hans de Goede0c0e9602015-05-05 23:56:08 +0200854 ed = ed_ret = &ohci_dev->ed[(usb_pipeendpoint(pipe) << 1) |
Remy Bohmer172a1132008-09-16 14:55:43 +0200855 (usb_pipecontrol(pipe)? 0: usb_pipeout(pipe))];
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200856
857 if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) {
858 err("ep_add_ed: pending delete");
859 /* pending delete request */
860 return NULL;
861 }
862
863 if (ed->state == ED_NEW) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200864 /* dummy td; end of td list for ed */
Hans de Goedee5ef4212015-05-05 23:56:09 +0200865 td = td_alloc(ohci_dev, usb_dev);
Remy Bohmer172a1132008-09-16 14:55:43 +0200866 ed->hwTailP = m32_swap((unsigned long)td);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200867 ed->hwHeadP = ed->hwTailP;
868 ed->state = ED_UNLINK;
Remy Bohmer172a1132008-09-16 14:55:43 +0200869 ed->type = usb_pipetype(pipe);
Hans de Goede0c0e9602015-05-05 23:56:08 +0200870 ohci_dev->ed_cnt++;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200871 }
872
Remy Bohmer172a1132008-09-16 14:55:43 +0200873 ed->hwINFO = m32_swap(usb_pipedevice(pipe)
874 | usb_pipeendpoint(pipe) << 7
875 | (usb_pipeisoc(pipe)? 0x8000: 0)
876 | (usb_pipecontrol(pipe)? 0: \
877 (usb_pipeout(pipe)? 0x800: 0x1000))
Ilya Yanoka1cf10f2012-11-06 13:48:20 +0000878 | (usb_dev->speed == USB_SPEED_LOW) << 13
Remy Bohmer172a1132008-09-16 14:55:43 +0200879 | usb_maxpacket(usb_dev, pipe) << 16);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200880
Zhang Wei8d15efa2007-06-06 10:08:14 +0200881 if (ed->type == PIPE_INTERRUPT && ed->state == ED_UNLINK) {
882 ed->int_period = interval;
883 ed->int_load = load;
884 }
885
Hans de Goede8e41f662015-05-05 23:56:13 +0200886 flush_dcache_ed(ed);
887
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200888 return ed_ret;
889}
890
891/*-------------------------------------------------------------------------*
892 * TD handling functions
893 *-------------------------------------------------------------------------*/
894
895/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */
896
Remy Bohmer172a1132008-09-16 14:55:43 +0200897static void td_fill(ohci_t *ohci, unsigned int info,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200898 void *data, int len,
899 struct usb_device *dev, int index, urb_priv_t *urb_priv)
900{
901 volatile td_t *td, *td_pt;
902#ifdef OHCI_FILL_TRACE
903 int i;
904#endif
905
906 if (index > urb_priv->length) {
907 err("index > length");
908 return;
909 }
910 /* use this td as the next dummy */
911 td_pt = urb_priv->td [index];
912 td_pt->hwNextTD = 0;
Hans de Goede8e41f662015-05-05 23:56:13 +0200913 flush_dcache_td(td_pt);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200914
915 /* fill the old dummy TD */
Remy Bohmer172a1132008-09-16 14:55:43 +0200916 td = urb_priv->td [index] =
Andre Przywarac114a982016-10-21 02:24:29 +0100917 (td_t *)(uintptr_t)
918 (m32_swap(urb_priv->ed->hwTailP) & ~0xf);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200919
920 td->ed = urb_priv->ed;
921 td->next_dl_td = NULL;
922 td->index = index;
Andre Przywarac114a982016-10-21 02:24:29 +0100923 td->data = (uintptr_t)data;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200924#ifdef OHCI_FILL_TRACE
Remy Bohmer47e72082008-10-10 10:23:21 +0200925 if (usb_pipebulk(urb_priv->pipe) && usb_pipeout(urb_priv->pipe)) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200926 for (i = 0; i < len; i++)
Remy Bohmer172a1132008-09-16 14:55:43 +0200927 printf("td->data[%d] %#2x ", i, ((unsigned char *)td->data)[i]);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200928 printf("\n");
929 }
930#endif
931 if (!len)
932 data = 0;
933
Remy Bohmer172a1132008-09-16 14:55:43 +0200934 td->hwINFO = m32_swap(info);
935 td->hwCBP = m32_swap((unsigned long)data);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200936 if (data)
Remy Bohmer172a1132008-09-16 14:55:43 +0200937 td->hwBE = m32_swap((unsigned long)(data + len - 1));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200938 else
939 td->hwBE = 0;
Remy Bohmer172a1132008-09-16 14:55:43 +0200940
941 td->hwNextTD = m32_swap((unsigned long)td_pt);
Hans de Goede8e41f662015-05-05 23:56:13 +0200942 flush_dcache_td(td);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200943
944 /* append to queue */
945 td->ed->hwTailP = td->hwNextTD;
Hans de Goede8e41f662015-05-05 23:56:13 +0200946 flush_dcache_ed(td->ed);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200947}
948
949/*-------------------------------------------------------------------------*/
950
951/* prepare all TDs of a transfer */
952
Hans de Goede2a240e72015-05-05 23:56:07 +0200953static void td_submit_job(ohci_t *ohci, struct usb_device *dev,
954 unsigned long pipe, void *buffer, int transfer_len,
Remy Bohmer172a1132008-09-16 14:55:43 +0200955 struct devrequest *setup, urb_priv_t *urb,
956 int interval)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200957{
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200958 int data_len = transfer_len;
959 void *data;
960 int cnt = 0;
961 __u32 info = 0;
962 unsigned int toggle = 0;
963
Hans de Goede8e41f662015-05-05 23:56:13 +0200964 flush_dcache_buffer(buffer, data_len);
965
Remy Bohmer172a1132008-09-16 14:55:43 +0200966 /* OHCI handles the DATA-toggles itself, we just use the USB-toggle
Vagrant Cascadian259b1fb2016-10-23 20:45:19 -0700967 * bits for resetting */
Remy Bohmer172a1132008-09-16 14:55:43 +0200968 if (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200969 toggle = TD_T_TOGGLE;
970 } else {
971 toggle = TD_T_DATA0;
Remy Bohmer172a1132008-09-16 14:55:43 +0200972 usb_settoggle(dev, usb_pipeendpoint(pipe),
973 usb_pipeout(pipe), 1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200974 }
975 urb->td_cnt = 0;
976 if (data_len)
977 data = buffer;
978 else
979 data = 0;
980
Remy Bohmer172a1132008-09-16 14:55:43 +0200981 switch (usb_pipetype(pipe)) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200982 case PIPE_BULK:
Remy Bohmer172a1132008-09-16 14:55:43 +0200983 info = usb_pipeout(pipe)?
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200984 TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ;
Remy Bohmer172a1132008-09-16 14:55:43 +0200985 while (data_len > 4096) {
986 td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle),
987 data, 4096, dev, cnt, urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200988 data += 4096; data_len -= 4096; cnt++;
989 }
Remy Bohmer172a1132008-09-16 14:55:43 +0200990 info = usb_pipeout(pipe)?
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200991 TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ;
Remy Bohmer172a1132008-09-16 14:55:43 +0200992 td_fill(ohci, info | (cnt? TD_T_TOGGLE:toggle), data,
993 data_len, dev, cnt, urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +0200994 cnt++;
995
Remy Bohmer172a1132008-09-16 14:55:43 +0200996 if (!ohci->sleeping) {
997 /* start bulk list */
Becky Bruce4abaacb2010-06-30 13:05:44 -0500998 ohci_writel(OHCI_BLF, &ohci->regs->cmdstatus);
Remy Bohmer172a1132008-09-16 14:55:43 +0200999 }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001000 break;
1001
1002 case PIPE_CONTROL:
Remy Bohmer172a1132008-09-16 14:55:43 +02001003 /* Setup phase */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001004 info = TD_CC | TD_DP_SETUP | TD_T_DATA0;
Hans de Goede8e41f662015-05-05 23:56:13 +02001005 flush_dcache_buffer(setup, 8);
Remy Bohmer172a1132008-09-16 14:55:43 +02001006 td_fill(ohci, info, setup, 8, dev, cnt++, urb);
1007
1008 /* Optional Data phase */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001009 if (data_len > 0) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001010 info = usb_pipeout(pipe)?
1011 TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 :
1012 TD_CC | TD_R | TD_DP_IN | TD_T_DATA1;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001013 /* NOTE: mishandles transfers >8K, some >4K */
Remy Bohmer172a1132008-09-16 14:55:43 +02001014 td_fill(ohci, info, data, data_len, dev, cnt++, urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001015 }
Remy Bohmer172a1132008-09-16 14:55:43 +02001016
1017 /* Status phase */
Hans de Goede60f4bd02015-05-05 23:56:12 +02001018 info = (usb_pipeout(pipe) || data_len == 0) ?
Remy Bohmer172a1132008-09-16 14:55:43 +02001019 TD_CC | TD_DP_IN | TD_T_DATA1:
1020 TD_CC | TD_DP_OUT | TD_T_DATA1;
1021 td_fill(ohci, info, data, 0, dev, cnt++, urb);
1022
1023 if (!ohci->sleeping) {
1024 /* start Control list */
Becky Bruce4abaacb2010-06-30 13:05:44 -05001025 ohci_writel(OHCI_CLF, &ohci->regs->cmdstatus);
Remy Bohmer172a1132008-09-16 14:55:43 +02001026 }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001027 break;
Zhang Wei8d15efa2007-06-06 10:08:14 +02001028
1029 case PIPE_INTERRUPT:
Remy Bohmer172a1132008-09-16 14:55:43 +02001030 info = usb_pipeout(urb->pipe)?
Zhang Wei8d15efa2007-06-06 10:08:14 +02001031 TD_CC | TD_DP_OUT | toggle:
1032 TD_CC | TD_R | TD_DP_IN | toggle;
Remy Bohmer172a1132008-09-16 14:55:43 +02001033 td_fill(ohci, info, data, data_len, dev, cnt++, urb);
Zhang Wei8d15efa2007-06-06 10:08:14 +02001034 break;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001035 }
1036 if (urb->length != cnt)
1037 dbg("TD LENGTH %d != CNT %d", urb->length, cnt);
1038}
1039
1040/*-------------------------------------------------------------------------*
1041 * Done List handling functions
1042 *-------------------------------------------------------------------------*/
1043
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001044/* calculate the transfer length and update the urb */
1045
Remy Bohmer172a1132008-09-16 14:55:43 +02001046static void dl_transfer_length(td_t *td)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001047{
Wolfgang Denk0ef5f622011-10-05 23:03:43 +02001048 __u32 tdBE, tdCBP;
Zhang Wei8d15efa2007-06-06 10:08:14 +02001049 urb_priv_t *lurb_priv = td->ed->purb;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001050
Remy Bohmer172a1132008-09-16 14:55:43 +02001051 tdBE = m32_swap(td->hwBE);
1052 tdCBP = m32_swap(td->hwCBP);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001053
Remy Bohmer47e72082008-10-10 10:23:21 +02001054 if (!(usb_pipecontrol(lurb_priv->pipe) &&
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001055 ((td->index == 0) || (td->index == lurb_priv->length - 1)))) {
1056 if (tdBE != 0) {
1057 if (td->hwCBP == 0)
1058 lurb_priv->actual_length += tdBE - td->data + 1;
1059 else
1060 lurb_priv->actual_length += tdCBP - td->data;
1061 }
1062 }
1063}
1064
1065/*-------------------------------------------------------------------------*/
Remy Bohmer172a1132008-09-16 14:55:43 +02001066static void check_status(td_t *td_list)
1067{
1068 urb_priv_t *lurb_priv = td_list->ed->purb;
1069 int urb_len = lurb_priv->length;
1070 __u32 *phwHeadP = &td_list->ed->hwHeadP;
1071 int cc;
1072
1073 cc = TD_CC_GET(m32_swap(td_list->hwINFO));
1074 if (cc) {
1075 err(" USB-error: %s (%x)", cc_to_string[cc], cc);
1076
Hans de Goede8e41f662015-05-05 23:56:13 +02001077 invalidate_dcache_ed(td_list->ed);
Remy Bohmer172a1132008-09-16 14:55:43 +02001078 if (*phwHeadP & m32_swap(0x1)) {
1079 if (lurb_priv &&
1080 ((td_list->index + 1) < urb_len)) {
1081 *phwHeadP =
1082 (lurb_priv->td[urb_len - 1]->hwNextTD &\
1083 m32_swap(0xfffffff0)) |
1084 (*phwHeadP & m32_swap(0x2));
1085
1086 lurb_priv->td_cnt += urb_len -
1087 td_list->index - 1;
1088 } else
1089 *phwHeadP &= m32_swap(0xfffffff2);
Hans de Goede8e41f662015-05-05 23:56:13 +02001090 flush_dcache_ed(td_list->ed);
Remy Bohmer172a1132008-09-16 14:55:43 +02001091 }
Remy Bohmer172a1132008-09-16 14:55:43 +02001092 }
1093}
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001094
1095/* replies to the request have to be on a FIFO basis so
1096 * we reverse the reversed done-list */
Remy Bohmer172a1132008-09-16 14:55:43 +02001097static td_t *dl_reverse_done_list(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001098{
Andre Przywarac114a982016-10-21 02:24:29 +01001099 uintptr_t td_list_hc;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001100 td_t *td_rev = NULL;
1101 td_t *td_list = NULL;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001102
Hans de Goede8e41f662015-05-05 23:56:13 +02001103 invalidate_dcache_hcca(ohci->hcca);
Remy Bohmer172a1132008-09-16 14:55:43 +02001104 td_list_hc = m32_swap(ohci->hcca->done_head) & 0xfffffff0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001105 ohci->hcca->done_head = 0;
Hans de Goede8e41f662015-05-05 23:56:13 +02001106 flush_dcache_hcca(ohci->hcca);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001107
1108 while (td_list_hc) {
1109 td_list = (td_t *)td_list_hc;
Hans de Goede8e41f662015-05-05 23:56:13 +02001110 invalidate_dcache_td(td_list);
Remy Bohmer172a1132008-09-16 14:55:43 +02001111 check_status(td_list);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001112 td_list->next_dl_td = td_rev;
1113 td_rev = td_list;
Remy Bohmer172a1132008-09-16 14:55:43 +02001114 td_list_hc = m32_swap(td_list->hwNextTD) & 0xfffffff0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001115 }
1116 return td_list;
1117}
1118
1119/*-------------------------------------------------------------------------*/
Remy Bohmer172a1132008-09-16 14:55:43 +02001120/*-------------------------------------------------------------------------*/
1121
1122static void finish_urb(ohci_t *ohci, urb_priv_t *urb, int status)
1123{
1124 if ((status & (ED_OPER | ED_UNLINK)) && (urb->state != URB_DEL))
Hans de Goede27873372015-05-10 14:10:22 +02001125 urb->finished = 1;
Remy Bohmer172a1132008-09-16 14:55:43 +02001126 else
1127 dbg("finish_urb: strange.., ED state %x, \n", status);
1128}
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001129
Remy Bohmer172a1132008-09-16 14:55:43 +02001130/*
1131 * Used to take back a TD from the host controller. This would normally be
1132 * called from within dl_done_list, however it may be called directly if the
1133 * HC no longer sees the TD and it has not appeared on the donelist (after
1134 * two frames). This bug has been observed on ZF Micro systems.
1135 */
1136static int takeback_td(ohci_t *ohci, td_t *td_list)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001137{
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001138 ed_t *ed;
Remy Bohmer172a1132008-09-16 14:55:43 +02001139 int cc;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001140 int stat = 0;
1141 /* urb_t *urb; */
1142 urb_priv_t *lurb_priv;
1143 __u32 tdINFO, edHeadP, edTailP;
1144
Hans de Goede8e41f662015-05-05 23:56:13 +02001145 invalidate_dcache_td(td_list);
Remy Bohmer172a1132008-09-16 14:55:43 +02001146 tdINFO = m32_swap(td_list->hwINFO);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001147
Remy Bohmer172a1132008-09-16 14:55:43 +02001148 ed = td_list->ed;
1149 lurb_priv = ed->purb;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001150
Remy Bohmer172a1132008-09-16 14:55:43 +02001151 dl_transfer_length(td_list);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001152
Remy Bohmer172a1132008-09-16 14:55:43 +02001153 lurb_priv->td_cnt++;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001154
Remy Bohmer172a1132008-09-16 14:55:43 +02001155 /* error code of transfer */
1156 cc = TD_CC_GET(tdINFO);
1157 if (cc) {
1158 err("USB-error: %s (%x)", cc_to_string[cc], cc);
1159 stat = cc_to_error[cc];
1160 }
Markus Klotzbuechere3af6d52007-03-26 11:21:05 +02001161
Remy Bohmer172a1132008-09-16 14:55:43 +02001162 /* see if this done list makes for all TD's of current URB,
1163 * and mark the URB finished if so */
1164 if (lurb_priv->td_cnt == lurb_priv->length)
1165 finish_urb(ohci, lurb_priv, ed->state);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001166
Remy Bohmer172a1132008-09-16 14:55:43 +02001167 dbg("dl_done_list: processing TD %x, len %x\n",
1168 lurb_priv->td_cnt, lurb_priv->length);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001169
Remy Bohmer47e72082008-10-10 10:23:21 +02001170 if (ed->state != ED_NEW && (!usb_pipeint(lurb_priv->pipe))) {
Hans de Goede8e41f662015-05-05 23:56:13 +02001171 invalidate_dcache_ed(ed);
Remy Bohmer172a1132008-09-16 14:55:43 +02001172 edHeadP = m32_swap(ed->hwHeadP) & 0xfffffff0;
1173 edTailP = m32_swap(ed->hwTailP);
1174
1175 /* unlink eds if they are not busy */
1176 if ((edHeadP == edTailP) && (ed->state == ED_OPER))
1177 ep_unlink(ohci, ed);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001178 }
1179 return stat;
1180}
1181
Remy Bohmer172a1132008-09-16 14:55:43 +02001182static int dl_done_list(ohci_t *ohci)
1183{
1184 int stat = 0;
1185 td_t *td_list = dl_reverse_done_list(ohci);
1186
1187 while (td_list) {
1188 td_t *td_next = td_list->next_dl_td;
1189 stat = takeback_td(ohci, td_list);
1190 td_list = td_next;
1191 }
1192 return stat;
1193}
1194
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001195/*-------------------------------------------------------------------------*
1196 * Virtual Root Hub
1197 *-------------------------------------------------------------------------*/
1198
Stephen Warren39c89682014-02-13 21:15:18 -07001199#include <usbroothubdes.h>
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001200
1201/* Hub class-specific descriptor is constructed dynamically */
1202
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001203/*-------------------------------------------------------------------------*/
1204
1205#define OK(x) len = (x); break
1206#ifdef DEBUG
Becky Bruce4abaacb2010-06-30 13:05:44 -05001207#define WR_RH_STAT(x) {info("WR:status %#8x", (x)); ohci_writel((x), \
Hans de Goede2a240e72015-05-05 23:56:07 +02001208 &ohci->regs->roothub.status); }
Remy Bohmer172a1132008-09-16 14:55:43 +02001209#define WR_RH_PORTSTAT(x) {info("WR:portstatus[%d] %#8x", wIndex-1, \
Hans de Goede2a240e72015-05-05 23:56:07 +02001210 (x)); ohci_writel((x), &ohci->regs->roothub.portstatus[wIndex-1]); }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001211#else
Hans de Goede2a240e72015-05-05 23:56:07 +02001212#define WR_RH_STAT(x) ohci_writel((x), &ohci->regs->roothub.status)
Becky Bruce4abaacb2010-06-30 13:05:44 -05001213#define WR_RH_PORTSTAT(x) ohci_writel((x), \
Hans de Goede2a240e72015-05-05 23:56:07 +02001214 &ohci->regs->roothub.portstatus[wIndex-1])
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001215#endif
Hans de Goede2a240e72015-05-05 23:56:07 +02001216#define RD_RH_STAT roothub_status(ohci)
1217#define RD_RH_PORTSTAT roothub_portstatus(ohci, wIndex-1)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001218
1219/* request to virtual root hub */
1220
1221int rh_check_port_status(ohci_t *controller)
1222{
1223 __u32 temp, ndp, i;
1224 int res;
1225
1226 res = -1;
Remy Bohmer172a1132008-09-16 14:55:43 +02001227 temp = roothub_a(controller);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001228 ndp = (temp & RH_A_NDP);
1229#ifdef CONFIG_AT91C_PQFP_UHPBUG
1230 ndp = (ndp == 2) ? 1:0;
1231#endif
1232 for (i = 0; i < ndp; i++) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001233 temp = roothub_portstatus(controller, i);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001234 /* check for a device disconnect */
1235 if (((temp & (RH_PS_PESC | RH_PS_CSC)) ==
1236 (RH_PS_PESC | RH_PS_CSC)) &&
1237 ((temp & RH_PS_CCS) == 0)) {
1238 res = i;
1239 break;
1240 }
1241 }
1242 return res;
1243}
1244
Hans de Goede2a240e72015-05-05 23:56:07 +02001245static int ohci_submit_rh_msg(ohci_t *ohci, struct usb_device *dev,
1246 unsigned long pipe, void *buffer, int transfer_len,
1247 struct devrequest *cmd)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001248{
Remy Bohmer172a1132008-09-16 14:55:43 +02001249 void *data = buffer;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001250 int leni = transfer_len;
1251 int len = 0;
1252 int stat = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001253 __u16 bmRType_bReq;
1254 __u16 wValue;
1255 __u16 wIndex;
1256 __u16 wLength;
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001257 ALLOC_ALIGN_BUFFER(__u8, databuf, 16, sizeof(u32));
Marek Vasutfc5cf882011-10-07 02:00:13 +02001258
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001259#ifdef DEBUG
Hans de Goede2a240e72015-05-05 23:56:07 +02001260pkt_print(ohci, NULL, dev, pipe, buffer, transfer_len,
Remy Bohmer172a1132008-09-16 14:55:43 +02001261 cmd, "SUB(rh)", usb_pipein(pipe));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001262#else
Hans de Goeded6cc1d12015-05-10 14:10:24 +02001263 ohci_mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001264#endif
Remy Bohmer47e72082008-10-10 10:23:21 +02001265 if (usb_pipeint(pipe)) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001266 info("Root-Hub submit IRQ: NOT implemented");
1267 return 0;
1268 }
1269
1270 bmRType_bReq = cmd->requesttype | (cmd->request << 8);
Remy Bohmer172a1132008-09-16 14:55:43 +02001271 wValue = le16_to_cpu(cmd->value);
1272 wIndex = le16_to_cpu(cmd->index);
1273 wLength = le16_to_cpu(cmd->length);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001274
1275 info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x",
1276 dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength);
1277
1278 switch (bmRType_bReq) {
1279 /* Request Destination:
1280 without flags: Device,
1281 RH_INTERFACE: interface,
1282 RH_ENDPOINT: endpoint,
1283 RH_CLASS means HUB here,
1284 RH_OTHER | RH_CLASS almost ever means HUB_PORT here
1285 */
1286
1287 case RH_GET_STATUS:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001288 *(u16 *)databuf = cpu_to_le16(1);
Remy Bohmer172a1132008-09-16 14:55:43 +02001289 OK(2);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001290 case RH_GET_STATUS | RH_INTERFACE:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001291 *(u16 *)databuf = cpu_to_le16(0);
Remy Bohmer172a1132008-09-16 14:55:43 +02001292 OK(2);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001293 case RH_GET_STATUS | RH_ENDPOINT:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001294 *(u16 *)databuf = cpu_to_le16(0);
Remy Bohmer172a1132008-09-16 14:55:43 +02001295 OK(2);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001296 case RH_GET_STATUS | RH_CLASS:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001297 *(u32 *)databuf = cpu_to_le32(
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001298 RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE));
Remy Bohmer172a1132008-09-16 14:55:43 +02001299 OK(4);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001300 case RH_GET_STATUS | RH_OTHER | RH_CLASS:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001301 *(u32 *)databuf = cpu_to_le32(RD_RH_PORTSTAT);
Remy Bohmer172a1132008-09-16 14:55:43 +02001302 OK(4);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001303
1304 case RH_CLEAR_FEATURE | RH_ENDPOINT:
1305 switch (wValue) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001306 case (RH_ENDPOINT_STALL):
1307 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001308 }
1309 break;
1310
1311 case RH_CLEAR_FEATURE | RH_CLASS:
1312 switch (wValue) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001313 case RH_C_HUB_LOCAL_POWER:
1314 OK(0);
1315 case (RH_C_HUB_OVER_CURRENT):
1316 WR_RH_STAT(RH_HS_OCIC);
1317 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001318 }
1319 break;
1320
1321 case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
1322 switch (wValue) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001323 case (RH_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_CCS); OK(0);
1324 case (RH_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_POCI); OK(0);
1325 case (RH_PORT_POWER): WR_RH_PORTSTAT(RH_PS_LSDA); OK(0);
1326 case (RH_C_PORT_CONNECTION): WR_RH_PORTSTAT(RH_PS_CSC); OK(0);
1327 case (RH_C_PORT_ENABLE): WR_RH_PORTSTAT(RH_PS_PESC); OK(0);
1328 case (RH_C_PORT_SUSPEND): WR_RH_PORTSTAT(RH_PS_PSSC); OK(0);
1329 case (RH_C_PORT_OVER_CURRENT):WR_RH_PORTSTAT(RH_PS_OCIC); OK(0);
1330 case (RH_C_PORT_RESET): WR_RH_PORTSTAT(RH_PS_PRSC); OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001331 }
1332 break;
1333
1334 case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
1335 switch (wValue) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001336 case (RH_PORT_SUSPEND):
1337 WR_RH_PORTSTAT(RH_PS_PSS); OK(0);
1338 case (RH_PORT_RESET): /* BUG IN HUP CODE *********/
1339 if (RD_RH_PORTSTAT & RH_PS_CCS)
1340 WR_RH_PORTSTAT(RH_PS_PRS);
1341 OK(0);
1342 case (RH_PORT_POWER):
1343 WR_RH_PORTSTAT(RH_PS_PPS);
Remy Bohmer172a1132008-09-16 14:55:43 +02001344 OK(0);
1345 case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/
1346 if (RD_RH_PORTSTAT & RH_PS_CCS)
1347 WR_RH_PORTSTAT(RH_PS_PES);
1348 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001349 }
1350 break;
1351
Remy Bohmer172a1132008-09-16 14:55:43 +02001352 case RH_SET_ADDRESS:
Hans de Goede2a240e72015-05-05 23:56:07 +02001353 ohci->rh.devnum = wValue;
Remy Bohmer172a1132008-09-16 14:55:43 +02001354 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001355
1356 case RH_GET_DESCRIPTOR:
1357 switch ((wValue & 0xff00) >> 8) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001358 case (0x01): /* device descriptor */
1359 len = min_t(unsigned int,
1360 leni,
1361 min_t(unsigned int,
1362 sizeof(root_hub_dev_des),
1363 wLength));
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001364 databuf = root_hub_dev_des; OK(len);
Remy Bohmer172a1132008-09-16 14:55:43 +02001365 case (0x02): /* configuration descriptor */
1366 len = min_t(unsigned int,
1367 leni,
1368 min_t(unsigned int,
1369 sizeof(root_hub_config_des),
1370 wLength));
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001371 databuf = root_hub_config_des; OK(len);
Remy Bohmer172a1132008-09-16 14:55:43 +02001372 case (0x03): /* string descriptors */
1373 if (wValue == 0x0300) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001374 len = min_t(unsigned int,
Remy Bohmer172a1132008-09-16 14:55:43 +02001375 leni,
1376 min_t(unsigned int,
1377 sizeof(root_hub_str_index0),
1378 wLength));
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001379 databuf = root_hub_str_index0;
Remy Bohmer172a1132008-09-16 14:55:43 +02001380 OK(len);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001381 }
Remy Bohmer172a1132008-09-16 14:55:43 +02001382 if (wValue == 0x0301) {
1383 len = min_t(unsigned int,
1384 leni,
1385 min_t(unsigned int,
1386 sizeof(root_hub_str_index1),
1387 wLength));
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001388 databuf = root_hub_str_index1;
Remy Bohmer172a1132008-09-16 14:55:43 +02001389 OK(len);
1390 }
1391 default:
1392 stat = USB_ST_STALLED;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001393 }
1394 break;
1395
1396 case RH_GET_DESCRIPTOR | RH_CLASS:
1397 {
Hans de Goede2a240e72015-05-05 23:56:07 +02001398 __u32 temp = roothub_a(ohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001399
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001400 databuf[0] = 9; /* min length; */
1401 databuf[1] = 0x29;
1402 databuf[2] = temp & RH_A_NDP;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001403#ifdef CONFIG_AT91C_PQFP_UHPBUG
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001404 databuf[2] = (databuf[2] == 2) ? 1 : 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001405#endif
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001406 databuf[3] = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001407 if (temp & RH_A_PSM) /* per-port power switching? */
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001408 databuf[3] |= 0x1;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001409 if (temp & RH_A_NOCP) /* no overcurrent reporting? */
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001410 databuf[3] |= 0x10;
Remy Bohmer172a1132008-09-16 14:55:43 +02001411 else if (temp & RH_A_OCPM)/* per-port overcurrent reporting? */
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001412 databuf[3] |= 0x8;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001413
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001414 databuf[4] = 0;
1415 databuf[5] = (temp & RH_A_POTPGT) >> 24;
1416 databuf[6] = 0;
Hans de Goede2a240e72015-05-05 23:56:07 +02001417 temp = roothub_b(ohci);
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001418 databuf[7] = temp & RH_B_DR;
1419 if (databuf[2] < 7) {
1420 databuf[8] = 0xff;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001421 } else {
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001422 databuf[0] += 2;
1423 databuf[8] = (temp & RH_B_DR) >> 8;
1424 databuf[10] = databuf[9] = 0xff;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001425 }
1426
1427 len = min_t(unsigned int, leni,
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001428 min_t(unsigned int, databuf[0], wLength));
Remy Bohmer172a1132008-09-16 14:55:43 +02001429 OK(len);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001430 }
1431
Marek Vasutfc5cf882011-10-07 02:00:13 +02001432 case RH_GET_CONFIGURATION:
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001433 databuf[0] = 0x01;
Marek Vasutfc5cf882011-10-07 02:00:13 +02001434 OK(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001435
Marek Vasutfc5cf882011-10-07 02:00:13 +02001436 case RH_SET_CONFIGURATION:
1437 WR_RH_STAT(0x10000);
1438 OK(0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001439
1440 default:
Remy Bohmer172a1132008-09-16 14:55:43 +02001441 dbg("unsupported root hub command");
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001442 stat = USB_ST_STALLED;
1443 }
1444
1445#ifdef DEBUG
Hans de Goede2a240e72015-05-05 23:56:07 +02001446 ohci_dump_roothub(ohci, 1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001447#else
Hans de Goeded6cc1d12015-05-10 14:10:24 +02001448 ohci_mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001449#endif
1450
1451 len = min_t(int, len, leni);
Troy Kisky62c1c7c2012-08-11 14:49:09 -07001452 if (data != databuf)
1453 memcpy(data, databuf, len);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001454 dev->act_len = len;
1455 dev->status = stat;
1456
1457#ifdef DEBUG
Hans de Goede2a240e72015-05-05 23:56:07 +02001458 pkt_print(ohci, NULL, dev, pipe, buffer,
Remy Bohmer172a1132008-09-16 14:55:43 +02001459 transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001460#else
Hans de Goeded6cc1d12015-05-10 14:10:24 +02001461 ohci_mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001462#endif
1463
1464 return stat;
1465}
1466
1467/*-------------------------------------------------------------------------*/
1468
Hans de Goeded7a39422015-05-13 14:42:15 +02001469static ohci_dev_t *ohci_get_ohci_dev(ohci_t *ohci, int devnum, int intr)
1470{
1471 int i;
1472
1473 if (!intr)
1474 return &ohci->ohci_dev;
1475
1476 /* First see if we already have an ohci_dev for this dev. */
1477 for (i = 0; i < NUM_INT_DEVS; i++) {
1478 if (ohci->int_dev[i].devnum == devnum)
1479 return &ohci->int_dev[i];
1480 }
1481
1482 /* If not then find a free one. */
1483 for (i = 0; i < NUM_INT_DEVS; i++) {
1484 if (ohci->int_dev[i].devnum == -1) {
1485 ohci->int_dev[i].devnum = devnum;
1486 return &ohci->int_dev[i];
1487 }
1488 }
1489
1490 printf("ohci: Error out of ohci_devs for interrupt endpoints\n");
1491 return NULL;
1492}
1493
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001494/* common code for handling submit messages - used for all but root hub */
1495/* accesses. */
Hans de Goede66b1d6d2015-05-13 14:42:16 +02001496static urb_priv_t *ohci_alloc_urb(struct usb_device *dev, unsigned long pipe,
1497 void *buffer, int transfer_len, int interval)
1498{
1499 urb_priv_t *urb;
1500
1501 urb = calloc(1, sizeof(urb_priv_t));
1502 if (!urb) {
1503 printf("ohci: Error out of memory allocating urb\n");
1504 return NULL;
1505 }
1506
1507 urb->dev = dev;
1508 urb->pipe = pipe;
1509 urb->transfer_buffer = buffer;
1510 urb->transfer_buffer_length = transfer_len;
1511 urb->interval = interval;
1512
1513 return urb;
1514}
1515
Hans de Goede2a240e72015-05-05 23:56:07 +02001516static int submit_common_msg(ohci_t *ohci, struct usb_device *dev,
1517 unsigned long pipe, void *buffer, int transfer_len,
1518 struct devrequest *setup, int interval)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001519{
1520 int stat = 0;
1521 int maxsize = usb_maxpacket(dev, pipe);
1522 int timeout;
Zhang Wei8d15efa2007-06-06 10:08:14 +02001523 urb_priv_t *urb;
Hans de Goeded7a39422015-05-13 14:42:15 +02001524 ohci_dev_t *ohci_dev;
Zhang Wei8d15efa2007-06-06 10:08:14 +02001525
Hans de Goede66b1d6d2015-05-13 14:42:16 +02001526 urb = ohci_alloc_urb(dev, pipe, buffer, transfer_len, interval);
1527 if (!urb)
1528 return -ENOMEM;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001529
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001530#ifdef DEBUG
Zhang Wei8d15efa2007-06-06 10:08:14 +02001531 urb->actual_length = 0;
Hans de Goede2a240e72015-05-05 23:56:07 +02001532 pkt_print(ohci, urb, dev, pipe, buffer, transfer_len,
Remy Bohmer172a1132008-09-16 14:55:43 +02001533 setup, "SUB", usb_pipein(pipe));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001534#else
Hans de Goeded6cc1d12015-05-10 14:10:24 +02001535 ohci_mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001536#endif
1537 if (!maxsize) {
1538 err("submit_common_message: pipesize for pipe %lx is zero",
1539 pipe);
1540 return -1;
1541 }
1542
Hans de Goeded7a39422015-05-13 14:42:15 +02001543 ohci_dev = ohci_get_ohci_dev(ohci, dev->devnum, usb_pipeint(pipe));
1544 if (!ohci_dev)
1545 return -ENOMEM;
1546
1547 if (sohci_submit_job(ohci, ohci_dev, urb, setup) < 0) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001548 err("sohci_submit_job failed");
1549 return -1;
1550 }
1551
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001552 mdelay(10);
Hans de Goede2a240e72015-05-05 23:56:07 +02001553 /* ohci_dump_status(ohci); */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001554
Simon Glassfd7f5132011-02-07 14:42:16 -08001555 timeout = USB_TIMEOUT_MS(pipe);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001556
1557 /* wait for it to complete */
1558 for (;;) {
1559 /* check whether the controller is done */
Hans de Goede2a240e72015-05-05 23:56:07 +02001560 stat = hc_interrupt(ohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001561 if (stat < 0) {
1562 stat = USB_ST_CRC_ERR;
1563 break;
1564 }
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001565
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001566 /* NOTE: since we are not interrupt driven in U-Boot and always
1567 * handle only one URB at a time, we cannot assume the
1568 * transaction finished on the first successful return from
1569 * hc_interrupt().. unless the flag for current URB is set,
1570 * meaning that all TD's to/from device got actually
1571 * transferred and processed. If the current URB is not
1572 * finished we need to re-iterate this loop so as
1573 * hc_interrupt() gets called again as there needs to be some
1574 * more TD's to process still */
Zhang Wei8d15efa2007-06-06 10:08:14 +02001575 if ((stat >= 0) && (stat != 0xff) && (urb->finished)) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001576 /* 0xff is returned for an SF-interrupt */
1577 break;
1578 }
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001579
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001580 if (--timeout) {
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001581 mdelay(1);
Zhang Wei8d15efa2007-06-06 10:08:14 +02001582 if (!urb->finished)
Remy Bohmer172a1132008-09-16 14:55:43 +02001583 dbg("*");
Zhang Wei8d15efa2007-06-06 10:08:14 +02001584
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001585 } else {
Hans de Goeded98dc992015-05-05 23:56:14 +02001586 if (!usb_pipeint(pipe))
1587 err("CTL:TIMEOUT ");
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001588 dbg("submit_common_msg: TO status %x\n", stat);
Zhang Wei8d15efa2007-06-06 10:08:14 +02001589 urb->finished = 1;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001590 stat = USB_ST_CRC_ERR;
1591 break;
1592 }
1593 }
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001594
1595 dev->status = stat;
Mateusz Kulikowski10b479d2013-10-23 20:26:27 +02001596 dev->act_len = urb->actual_length;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001597
Hans de Goede8e41f662015-05-05 23:56:13 +02001598 if (usb_pipein(pipe) && dev->status == 0 && dev->act_len)
1599 invalidate_dcache_buffer(buffer, dev->act_len);
1600
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001601#ifdef DEBUG
Hans de Goede2a240e72015-05-05 23:56:07 +02001602 pkt_print(ohci, urb, dev, pipe, buffer, transfer_len,
Remy Bohmer172a1132008-09-16 14:55:43 +02001603 setup, "RET(ctlr)", usb_pipein(pipe));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001604#else
Hans de Goeded6cc1d12015-05-10 14:10:24 +02001605 ohci_mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001606#endif
Hans de Goede27873372015-05-10 14:10:22 +02001607 urb_free_priv(urb);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001608 return 0;
1609}
1610
Hans de Goede5477e6f2015-05-13 14:42:17 +02001611#define MAX_INT_QUEUESIZE 8
1612
1613struct int_queue {
1614 int queuesize;
1615 int curr_urb;
1616 urb_priv_t *urb[MAX_INT_QUEUESIZE];
1617};
1618
1619static struct int_queue *_ohci_create_int_queue(ohci_t *ohci,
1620 struct usb_device *udev, unsigned long pipe, int queuesize,
1621 int elementsize, void *buffer, int interval)
1622{
1623 struct int_queue *queue;
1624 ohci_dev_t *ohci_dev;
1625 int i;
1626
1627 if (queuesize > MAX_INT_QUEUESIZE)
1628 return NULL;
1629
1630 ohci_dev = ohci_get_ohci_dev(ohci, udev->devnum, 1);
1631 if (!ohci_dev)
1632 return NULL;
1633
1634 queue = malloc(sizeof(*queue));
1635 if (!queue) {
1636 printf("ohci: Error out of memory allocating int queue\n");
1637 return NULL;
1638 }
1639
1640 for (i = 0; i < queuesize; i++) {
1641 queue->urb[i] = ohci_alloc_urb(udev, pipe,
1642 buffer + i * elementsize,
1643 elementsize, interval);
1644 if (!queue->urb[i])
1645 break;
1646
1647 if (sohci_submit_job(ohci, ohci_dev, queue->urb[i], NULL)) {
1648 printf("ohci: Error submitting int queue job\n");
1649 urb_free_priv(queue->urb[i]);
1650 break;
1651 }
1652 }
1653 if (i == 0) {
1654 /* We did not succeed in submitting even 1 urb */
1655 free(queue);
1656 return NULL;
1657 }
1658
1659 queue->queuesize = i;
1660 queue->curr_urb = 0;
1661
1662 return queue;
1663}
1664
1665static void *_ohci_poll_int_queue(ohci_t *ohci, struct usb_device *udev,
1666 struct int_queue *queue)
1667{
1668 if (queue->curr_urb == queue->queuesize)
1669 return NULL; /* Queue depleted */
1670
1671 if (hc_interrupt(ohci) < 0)
1672 return NULL;
1673
1674 if (queue->urb[queue->curr_urb]->finished) {
1675 void *ret = queue->urb[queue->curr_urb]->transfer_buffer;
1676 queue->curr_urb++;
1677 return ret;
1678 }
1679
1680 return NULL;
1681}
1682
1683static int _ohci_destroy_int_queue(ohci_t *ohci, struct usb_device *dev,
1684 struct int_queue *queue)
1685{
1686 int i;
1687
1688 for (i = 0; i < queue->queuesize; i++)
1689 urb_free_priv(queue->urb[i]);
1690
1691 free(queue);
1692
1693 return 0;
1694}
1695
Sven Schwermer8a3cb9f12018-11-21 08:43:56 +01001696#if !CONFIG_IS_ENABLED(DM_USB)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001697/* submit routines called from usb.c */
1698int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
1699 int transfer_len)
1700{
1701 info("submit_bulk_msg");
Hans de Goede2a240e72015-05-05 23:56:07 +02001702 return submit_common_msg(&gohci, dev, pipe, buffer, transfer_len,
1703 NULL, 0);
1704}
1705
1706int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
Michal Suchanek1c95b9f2019-08-18 10:55:27 +02001707 int transfer_len, int interval, bool nonblock)
Hans de Goede2a240e72015-05-05 23:56:07 +02001708{
1709 info("submit_int_msg");
1710 return submit_common_msg(&gohci, dev, pipe, buffer, transfer_len, NULL,
1711 interval);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001712}
Hans de Goede5477e6f2015-05-13 14:42:17 +02001713
1714struct int_queue *create_int_queue(struct usb_device *dev,
1715 unsigned long pipe, int queuesize, int elementsize,
1716 void *buffer, int interval)
1717{
1718 return _ohci_create_int_queue(&gohci, dev, pipe, queuesize,
1719 elementsize, buffer, interval);
1720}
1721
1722void *poll_int_queue(struct usb_device *dev, struct int_queue *queue)
1723{
1724 return _ohci_poll_int_queue(&gohci, dev, queue);
1725}
1726
1727int destroy_int_queue(struct usb_device *dev, struct int_queue *queue)
1728{
1729 return _ohci_destroy_int_queue(&gohci, dev, queue);
1730}
Hans de Goede8a62c502015-05-10 14:10:25 +02001731#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001732
Hans de Goede2a240e72015-05-05 23:56:07 +02001733static int _ohci_submit_control_msg(ohci_t *ohci, struct usb_device *dev,
1734 unsigned long pipe, void *buffer, int transfer_len,
1735 struct devrequest *setup)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001736{
1737 int maxsize = usb_maxpacket(dev, pipe);
1738
1739 info("submit_control_msg");
1740#ifdef DEBUG
Hans de Goede2a240e72015-05-05 23:56:07 +02001741 pkt_print(ohci, NULL, dev, pipe, buffer, transfer_len,
Remy Bohmer172a1132008-09-16 14:55:43 +02001742 setup, "SUB", usb_pipein(pipe));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001743#else
Hans de Goeded6cc1d12015-05-10 14:10:24 +02001744 ohci_mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001745#endif
1746 if (!maxsize) {
1747 err("submit_control_message: pipesize for pipe %lx is zero",
1748 pipe);
1749 return -1;
1750 }
Hans de Goede2a240e72015-05-05 23:56:07 +02001751 if (((pipe >> 8) & 0x7f) == ohci->rh.devnum) {
1752 ohci->rh.dev = dev;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001753 /* root hub - redirect */
Hans de Goede2a240e72015-05-05 23:56:07 +02001754 return ohci_submit_rh_msg(ohci, dev, pipe, buffer,
1755 transfer_len, setup);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001756 }
1757
Hans de Goede2a240e72015-05-05 23:56:07 +02001758 return submit_common_msg(ohci, dev, pipe, buffer, transfer_len,
1759 setup, 0);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001760}
1761
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001762/*-------------------------------------------------------------------------*
1763 * HC functions
1764 *-------------------------------------------------------------------------*/
1765
1766/* reset the HC and BUS */
1767
Remy Bohmer172a1132008-09-16 14:55:43 +02001768static int hc_reset(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001769{
Yuri Tikhonov11af42c2008-09-04 11:19:05 +02001770#ifdef CONFIG_PCI_EHCI_DEVNO
1771 pci_dev_t pdev;
1772#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001773 int timeout = 30;
1774 int smm_timeout = 50; /* 0,5 sec */
1775
1776 dbg("%s\n", __FUNCTION__);
1777
Yuri Tikhonov11af42c2008-09-04 11:19:05 +02001778#ifdef CONFIG_PCI_EHCI_DEVNO
1779 /*
1780 * Some multi-function controllers (e.g. ISP1562) allow root hub
1781 * resetting via EHCI registers only.
1782 */
1783 pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVNO);
1784 if (pdev != -1) {
1785 u32 base;
1786 int timeout = 1000;
1787
1788 pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001789 base += EHCI_USBCMD_OFF;
1790 ohci_writel(ohci_readl(base) | EHCI_USBCMD_HCRESET, base);
Yuri Tikhonov11af42c2008-09-04 11:19:05 +02001791
Becky Bruce4abaacb2010-06-30 13:05:44 -05001792 while (ohci_readl(base) & EHCI_USBCMD_HCRESET) {
Yuri Tikhonov11af42c2008-09-04 11:19:05 +02001793 if (timeout-- <= 0) {
1794 printf("USB RootHub reset timed out!");
1795 break;
1796 }
1797 udelay(1);
1798 }
1799 } else
1800 printf("No EHCI func at %d index!\n", CONFIG_PCI_EHCI_DEVNO);
1801#endif
Becky Bruce4abaacb2010-06-30 13:05:44 -05001802 if (ohci_readl(&ohci->regs->control) & OHCI_CTRL_IR) {
1803 /* SMM owns the HC, request ownership */
1804 ohci_writel(OHCI_OCR, &ohci->regs->cmdstatus);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001805 info("USB HC TakeOver from SMM");
Becky Bruce4abaacb2010-06-30 13:05:44 -05001806 while (ohci_readl(&ohci->regs->control) & OHCI_CTRL_IR) {
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001807 mdelay(10);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001808 if (--smm_timeout == 0) {
1809 err("USB HC TakeOver failed!");
1810 return -1;
1811 }
1812 }
1813 }
1814
1815 /* Disable HC interrupts */
Becky Bruce4abaacb2010-06-30 13:05:44 -05001816 ohci_writel(OHCI_INTR_MIE, &ohci->regs->intrdisable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001817
1818 dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;\n",
1819 ohci->slot_name,
Becky Bruce4abaacb2010-06-30 13:05:44 -05001820 ohci_readl(&ohci->regs->control));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001821
1822 /* Reset USB (needed by some controllers) */
Markus Klotzbuecher661ffe52006-11-27 11:43:09 +01001823 ohci->hc_control = 0;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001824 ohci_writel(ohci->hc_control, &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001825
1826 /* HC Reset requires max 10 us delay */
Becky Bruce4abaacb2010-06-30 13:05:44 -05001827 ohci_writel(OHCI_HCR, &ohci->regs->cmdstatus);
1828 while ((ohci_readl(&ohci->regs->cmdstatus) & OHCI_HCR) != 0) {
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001829 if (--timeout == 0) {
1830 err("USB HC reset timed out!");
1831 return -1;
1832 }
Remy Bohmer172a1132008-09-16 14:55:43 +02001833 udelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001834 }
1835 return 0;
1836}
1837
1838/*-------------------------------------------------------------------------*/
1839
1840/* Start an OHCI controller, set the BUS operational
1841 * enable interrupts
1842 * connect the virtual root hub */
1843
Remy Bohmer172a1132008-09-16 14:55:43 +02001844static int hc_start(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001845{
1846 __u32 mask;
1847 unsigned int fminterval;
Hans de Goeded7a39422015-05-13 14:42:15 +02001848 int i;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001849
1850 ohci->disabled = 1;
Hans de Goeded7a39422015-05-13 14:42:15 +02001851 for (i = 0; i < NUM_INT_DEVS; i++)
1852 ohci->int_dev[i].devnum = -1;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001853
1854 /* Tell the controller where the control and bulk lists are
1855 * The lists are empty now. */
1856
Becky Bruce4abaacb2010-06-30 13:05:44 -05001857 ohci_writel(0, &ohci->regs->ed_controlhead);
1858 ohci_writel(0, &ohci->regs->ed_bulkhead);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001859
Andre Przywarac114a982016-10-21 02:24:29 +01001860 ohci_writel((uintptr_t)ohci->hcca,
Becky Bruce4abaacb2010-06-30 13:05:44 -05001861 &ohci->regs->hcca); /* reset clears this */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001862
1863 fminterval = 0x2edf;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001864 ohci_writel((fminterval * 9) / 10, &ohci->regs->periodicstart);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001865 fminterval |= ((((fminterval - 210) * 6) / 7) << 16);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001866 ohci_writel(fminterval, &ohci->regs->fminterval);
1867 ohci_writel(0x628, &ohci->regs->lsthresh);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001868
1869 /* start controller operations */
1870 ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER;
1871 ohci->disabled = 0;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001872 ohci_writel(ohci->hc_control, &ohci->regs->control);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001873
1874 /* disable all interrupts */
1875 mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD |
1876 OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC |
1877 OHCI_INTR_OC | OHCI_INTR_MIE);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001878 ohci_writel(mask, &ohci->regs->intrdisable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001879 /* clear all interrupts */
1880 mask &= ~OHCI_INTR_MIE;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001881 ohci_writel(mask, &ohci->regs->intrstatus);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001882 /* Choose the interrupts we care about now - but w/o MIE */
1883 mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO;
Becky Bruce4abaacb2010-06-30 13:05:44 -05001884 ohci_writel(mask, &ohci->regs->intrenable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001885
1886#ifdef OHCI_USE_NPS
1887 /* required for AMD-756 and some Mac platforms */
Becky Bruce4abaacb2010-06-30 13:05:44 -05001888 ohci_writel((roothub_a(ohci) | RH_A_NPS) & ~RH_A_PSM,
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001889 &ohci->regs->roothub.a);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001890 ohci_writel(RH_HS_LPSC, &ohci->regs->roothub.status);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001891#endif /* OHCI_USE_NPS */
1892
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001893 /* connect the virtual root hub */
1894 ohci->rh.devnum = 0;
1895
1896 return 0;
1897}
1898
1899/*-------------------------------------------------------------------------*/
1900
1901/* an interrupt happens */
1902
Hans de Goede2a240e72015-05-05 23:56:07 +02001903static int hc_interrupt(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001904{
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001905 struct ohci_regs *regs = ohci->regs;
1906 int ints;
1907 int stat = -1;
1908
Hans de Goede8e41f662015-05-05 23:56:13 +02001909 invalidate_dcache_hcca(ohci->hcca);
1910
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001911 if ((ohci->hcca->done_head != 0) &&
Remy Bohmer172a1132008-09-16 14:55:43 +02001912 !(m32_swap(ohci->hcca->done_head) & 0x01)) {
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001913 ints = OHCI_INTR_WDH;
Remy Bohmer172a1132008-09-16 14:55:43 +02001914 } else {
Becky Bruce4abaacb2010-06-30 13:05:44 -05001915 ints = ohci_readl(&regs->intrstatus);
Remy Bohmer172a1132008-09-16 14:55:43 +02001916 if (ints == ~(u32)0) {
1917 ohci->disabled++;
1918 err("%s device removed!", ohci->slot_name);
1919 return -1;
1920 } else {
Becky Bruce4abaacb2010-06-30 13:05:44 -05001921 ints &= ohci_readl(&regs->intrenable);
Remy Bohmer172a1132008-09-16 14:55:43 +02001922 if (ints == 0) {
1923 dbg("hc_interrupt: returning..\n");
1924 return 0xff;
1925 }
1926 }
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001927 }
Markus Klotzbuechere3af6d52007-03-26 11:21:05 +02001928
Remy Bohmer172a1132008-09-16 14:55:43 +02001929 /* dbg("Interrupt: %x frame: %x", ints,
1930 le16_to_cpu(ohci->hcca->frame_no)); */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001931
Remy Bohmer172a1132008-09-16 14:55:43 +02001932 if (ints & OHCI_INTR_RHSC)
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02001933 stat = 0xff;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001934
1935 if (ints & OHCI_INTR_UE) {
1936 ohci->disabled++;
Remy Bohmer172a1132008-09-16 14:55:43 +02001937 err("OHCI Unrecoverable Error, controller usb-%s disabled",
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001938 ohci->slot_name);
1939 /* e.g. due to PCI Master/Target Abort */
1940
1941#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +02001942 ohci_dump(ohci, 1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001943#else
Hans de Goeded6cc1d12015-05-10 14:10:24 +02001944 ohci_mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001945#endif
1946 /* FIXME: be optimistic, hope that bug won't repeat often. */
1947 /* Make some non-interrupt context restart the controller. */
1948 /* Count and limit the retries though; either hardware or */
1949 /* software errors can go forever... */
Remy Bohmer172a1132008-09-16 14:55:43 +02001950 hc_reset(ohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001951 return -1;
1952 }
1953
1954 if (ints & OHCI_INTR_WDH) {
Hans de Goeded6cc1d12015-05-10 14:10:24 +02001955 ohci_mdelay(1);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001956 ohci_writel(OHCI_INTR_WDH, &regs->intrdisable);
1957 (void)ohci_readl(&regs->intrdisable); /* flush */
Hans de Goede2a240e72015-05-05 23:56:07 +02001958 stat = dl_done_list(ohci);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001959 ohci_writel(OHCI_INTR_WDH, &regs->intrenable);
1960 (void)ohci_readl(&regs->intrdisable); /* flush */
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001961 }
1962
1963 if (ints & OHCI_INTR_SO) {
1964 dbg("USB Schedule overrun\n");
Becky Bruce4abaacb2010-06-30 13:05:44 -05001965 ohci_writel(OHCI_INTR_SO, &regs->intrenable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001966 stat = -1;
1967 }
1968
1969 /* FIXME: this assumes SOF (1/ms) interrupts don't get lost... */
1970 if (ints & OHCI_INTR_SF) {
Remy Bohmer172a1132008-09-16 14:55:43 +02001971 unsigned int frame = m16_swap(ohci->hcca->frame_no) & 1;
Mike Frysinger60ce19a2012-03-05 13:47:00 +00001972 mdelay(1);
Becky Bruce4abaacb2010-06-30 13:05:44 -05001973 ohci_writel(OHCI_INTR_SF, &regs->intrdisable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001974 if (ohci->ed_rm_list[frame] != NULL)
Becky Bruce4abaacb2010-06-30 13:05:44 -05001975 ohci_writel(OHCI_INTR_SF, &regs->intrenable);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001976 stat = 0xff;
1977 }
1978
Becky Bruce4abaacb2010-06-30 13:05:44 -05001979 ohci_writel(ints, &regs->intrstatus);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001980 return stat;
1981}
1982
1983/*-------------------------------------------------------------------------*/
1984
Sven Schwermer8a3cb9f12018-11-21 08:43:56 +01001985#if !CONFIG_IS_ENABLED(DM_USB)
Hans de Goede8a62c502015-05-10 14:10:25 +02001986
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001987/*-------------------------------------------------------------------------*/
1988
1989/* De-allocate all resources.. */
1990
Remy Bohmer172a1132008-09-16 14:55:43 +02001991static void hc_release_ohci(ohci_t *ohci)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001992{
Remy Bohmer172a1132008-09-16 14:55:43 +02001993 dbg("USB HC release ohci usb-%s", ohci->slot_name);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001994
1995 if (!ohci->disabled)
Remy Bohmer172a1132008-09-16 14:55:43 +02001996 hc_reset(ohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02001997}
1998
1999/*-------------------------------------------------------------------------*/
2000
2001/*
2002 * low level initalisation routine, called from usb.c
2003 */
2004static char ohci_inited = 0;
2005
Troy Kisky8f9c49d2013-10-10 15:27:56 -07002006int usb_lowlevel_init(int index, enum usb_init_type init, void **controller)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002007{
Zhang Wei8d15efa2007-06-06 10:08:14 +02002008#ifdef CONFIG_PCI_OHCI
2009 pci_dev_t pdev;
2010#endif
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002011
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002012#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002013 /* cpu dependant init */
Remy Bohmer172a1132008-09-16 14:55:43 +02002014 if (usb_cpu_init())
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002015 return -1;
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002016#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002017
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002018#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002019 /* board dependant init */
Mateusz Zalegad862f892013-10-04 19:22:26 +02002020 if (board_usb_init(index, USB_INIT_HOST))
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002021 return -1;
2022#endif
Remy Bohmer172a1132008-09-16 14:55:43 +02002023 memset(&gohci, 0, sizeof(ohci_t));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002024
2025 /* align the storage */
2026 if ((__u32)&ghcca[0] & 0xff) {
2027 err("HCCA not aligned!!");
2028 return -1;
2029 }
Hans de Goedeeb509d32015-05-05 23:56:10 +02002030 gohci.hcca = &ghcca[0];
2031 info("aligned ghcca %p", gohci.hcca);
2032 memset(gohci.hcca, 0, sizeof(struct ohci_hcca));
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002033
2034 gohci.disabled = 1;
2035 gohci.sleeping = 0;
2036 gohci.irq = -1;
Zhang Wei8d15efa2007-06-06 10:08:14 +02002037#ifdef CONFIG_PCI_OHCI
Sergei Poselenov0b4570f2008-05-22 01:15:53 +02002038 pdev = pci_find_devices(ohci_pci_ids, CONFIG_PCI_OHCI_DEVNO);
Zhang Wei8d15efa2007-06-06 10:08:14 +02002039
2040 if (pdev != -1) {
2041 u16 vid, did;
2042 u32 base;
2043 pci_read_config_word(pdev, PCI_VENDOR_ID, &vid);
2044 pci_read_config_word(pdev, PCI_DEVICE_ID, &did);
2045 printf("OHCI pci controller (%04x, %04x) found @(%d:%d:%d)\n",
2046 vid, did, (pdev >> 16) & 0xff,
2047 (pdev >> 11) & 0x1f, (pdev >> 8) & 0x7);
2048 pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &base);
2049 printf("OHCI regs address 0x%08x\n", base);
2050 gohci.regs = (struct ohci_regs *)base;
Heiko Schocher882830a2019-07-16 10:49:06 +02002051 } else {
2052 printf("%s: OHCI devnr: %d not found\n", __func__,
2053 CONFIG_PCI_OHCI_DEVNO);
Zhang Wei8d15efa2007-06-06 10:08:14 +02002054 return -1;
Heiko Schocher882830a2019-07-16 10:49:06 +02002055 }
Zhang Wei8d15efa2007-06-06 10:08:14 +02002056#else
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002057 gohci.regs = (struct ohci_regs *)CONFIG_SYS_USB_OHCI_REGS_BASE;
Zhang Wei8d15efa2007-06-06 10:08:14 +02002058#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002059
2060 gohci.flags = 0;
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002061 gohci.slot_name = CONFIG_SYS_USB_OHCI_SLOT_NAME;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002062
2063 if (hc_reset (&gohci) < 0) {
2064 hc_release_ohci (&gohci);
2065 err ("can't reset usb-%s", gohci.slot_name);
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002066#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002067 /* board dependant cleanup */
Mateusz Zalegad862f892013-10-04 19:22:26 +02002068 board_usb_cleanup(index, USB_INIT_HOST);
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002069#endif
2070
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002071#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002072 /* cpu dependant cleanup */
Markus Klotzbuecheraa219212006-05-30 16:56:14 +02002073 usb_cpu_init_fail();
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002074#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002075 return -1;
2076 }
2077
Remy Bohmer172a1132008-09-16 14:55:43 +02002078 if (hc_start(&gohci) < 0) {
2079 err("can't start usb-%s", gohci.slot_name);
2080 hc_release_ohci(&gohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002081 /* Initialization failed */
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002082#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002083 /* board dependant cleanup */
2084 usb_board_stop();
2085#endif
2086
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002087#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002088 /* cpu dependant cleanup */
2089 usb_cpu_stop();
2090#endif
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002091 return -1;
2092 }
2093
2094#ifdef DEBUG
Remy Bohmer172a1132008-09-16 14:55:43 +02002095 ohci_dump(&gohci, 1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002096#else
Hans de Goeded6cc1d12015-05-10 14:10:24 +02002097 ohci_mdelay(1);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002098#endif
2099 ohci_inited = 1;
2100 return 0;
2101}
2102
Lucas Stacha3231282012-09-26 00:14:34 +02002103int usb_lowlevel_stop(int index)
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002104{
2105 /* this gets called really early - before the controller has */
2106 /* even been initialized! */
2107 if (!ohci_inited)
2108 return 0;
2109 /* TODO release any interrupts, etc. */
2110 /* call hc_release_ohci() here ? */
Remy Bohmer172a1132008-09-16 14:55:43 +02002111 hc_reset(&gohci);
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002112
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002113#ifdef CONFIG_SYS_USB_OHCI_BOARD_INIT
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002114 /* board dependant cleanup */
Remy Bohmer172a1132008-09-16 14:55:43 +02002115 if (usb_board_stop())
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002116 return -1;
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002117#endif
2118
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +02002119#ifdef CONFIG_SYS_USB_OHCI_CPU_INIT
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002120 /* cpu dependant cleanup */
Remy Bohmer172a1132008-09-16 14:55:43 +02002121 if (usb_cpu_stop())
Markus Klotzbuecher98095512006-05-23 10:33:11 +02002122 return -1;
2123#endif
Remy Bohmer743dd492008-08-20 11:22:02 +02002124 /* This driver is no longer initialised. It needs a new low-level
2125 * init (board/cpu) before it can be used again. */
2126 ohci_inited = 0;
Markus Klotzbuecherd8d023f2006-05-22 16:33:54 +02002127 return 0;
2128}
Hans de Goede2a240e72015-05-05 23:56:07 +02002129
2130int submit_control_msg(struct usb_device *dev, unsigned long pipe,
2131 void *buffer, int transfer_len, struct devrequest *setup)
2132{
2133 return _ohci_submit_control_msg(&gohci, dev, pipe, buffer,
2134 transfer_len, setup);
2135}
Hans de Goede8a62c502015-05-10 14:10:25 +02002136#endif
2137
Sven Schwermer8a3cb9f12018-11-21 08:43:56 +01002138#if CONFIG_IS_ENABLED(DM_USB)
Hans de Goede8a62c502015-05-10 14:10:25 +02002139static int ohci_submit_control_msg(struct udevice *dev, struct usb_device *udev,
2140 unsigned long pipe, void *buffer, int length,
2141 struct devrequest *setup)
2142{
2143 ohci_t *ohci = dev_get_priv(usb_get_bus(dev));
2144
2145 return _ohci_submit_control_msg(ohci, udev, pipe, buffer,
2146 length, setup);
2147}
2148
2149static int ohci_submit_bulk_msg(struct udevice *dev, struct usb_device *udev,
2150 unsigned long pipe, void *buffer, int length)
2151{
2152 ohci_t *ohci = dev_get_priv(usb_get_bus(dev));
2153
2154 return submit_common_msg(ohci, udev, pipe, buffer, length, NULL, 0);
2155}
2156
2157static int ohci_submit_int_msg(struct udevice *dev, struct usb_device *udev,
2158 unsigned long pipe, void *buffer, int length,
Michal Suchanek1c95b9f2019-08-18 10:55:27 +02002159 int interval, bool nonblock)
Hans de Goede8a62c502015-05-10 14:10:25 +02002160{
2161 ohci_t *ohci = dev_get_priv(usb_get_bus(dev));
2162
2163 return submit_common_msg(ohci, udev, pipe, buffer, length,
2164 NULL, interval);
2165}
2166
Hans de Goede5477e6f2015-05-13 14:42:17 +02002167static struct int_queue *ohci_create_int_queue(struct udevice *dev,
2168 struct usb_device *udev, unsigned long pipe, int queuesize,
2169 int elementsize, void *buffer, int interval)
2170{
2171 ohci_t *ohci = dev_get_priv(usb_get_bus(dev));
2172
2173 return _ohci_create_int_queue(ohci, udev, pipe, queuesize, elementsize,
2174 buffer, interval);
2175}
2176
2177static void *ohci_poll_int_queue(struct udevice *dev, struct usb_device *udev,
2178 struct int_queue *queue)
2179{
2180 ohci_t *ohci = dev_get_priv(usb_get_bus(dev));
2181
2182 return _ohci_poll_int_queue(ohci, udev, queue);
2183}
2184
2185static int ohci_destroy_int_queue(struct udevice *dev, struct usb_device *udev,
2186 struct int_queue *queue)
2187{
2188 ohci_t *ohci = dev_get_priv(usb_get_bus(dev));
2189
2190 return _ohci_destroy_int_queue(ohci, udev, queue);
2191}
2192
Hans de Goede8a62c502015-05-10 14:10:25 +02002193int ohci_register(struct udevice *dev, struct ohci_regs *regs)
2194{
2195 struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
2196 ohci_t *ohci = dev_get_priv(dev);
2197 u32 reg;
2198
2199 priv->desc_before_addr = true;
2200
2201 ohci->regs = regs;
2202 ohci->hcca = memalign(256, sizeof(struct ohci_hcca));
2203 if (!ohci->hcca)
2204 return -ENOMEM;
2205 memset(ohci->hcca, 0, sizeof(struct ohci_hcca));
Hans de Goede66cb3e42015-10-20 18:39:29 +02002206 flush_dcache_hcca(ohci->hcca);
Hans de Goede8a62c502015-05-10 14:10:25 +02002207
2208 if (hc_reset(ohci) < 0)
2209 return -EIO;
2210
2211 if (hc_start(ohci) < 0)
2212 return -EIO;
2213
2214 reg = ohci_readl(&regs->revision);
2215 printf("USB OHCI %x.%x\n", (reg >> 4) & 0xf, reg & 0xf);
2216
2217 return 0;
2218}
2219
2220int ohci_deregister(struct udevice *dev)
2221{
2222 ohci_t *ohci = dev_get_priv(dev);
2223
2224 if (hc_reset(ohci) < 0)
2225 return -EIO;
2226
2227 free(ohci->hcca);
2228
2229 return 0;
2230}
2231
2232struct dm_usb_ops ohci_usb_ops = {
2233 .control = ohci_submit_control_msg,
2234 .bulk = ohci_submit_bulk_msg,
2235 .interrupt = ohci_submit_int_msg,
Hans de Goede5477e6f2015-05-13 14:42:17 +02002236 .create_int_queue = ohci_create_int_queue,
2237 .poll_int_queue = ohci_poll_int_queue,
2238 .destroy_int_queue = ohci_destroy_int_queue,
Hans de Goede8a62c502015-05-10 14:10:25 +02002239};
2240
2241#endif