2
* Freescale QUICC Engine USB Host Controller Driver
4
* Copyright (c) Freescale Semicondutor, Inc. 2006, 2011.
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* Shlomi Gridish <gridish@freescale.com>
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* Jerry Huang <Chang-Ming.Huang@freescale.com>
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* Copyright (c) Logic Product Development, Inc. 2007
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* Peter Barada <peterb@logicpd.com>
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* Copyright (c) MontaVista Software, Inc. 2008.
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* Anton Vorontsov <avorontsov@ru.mvista.com>
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/list.h>
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#include <linux/interrupt.h>
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#include <linux/usb.h>
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#include <linux/usb/hcd.h>
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#include <asm/fsl_gtm.h>
32
static void recycle_frame(struct fhci_usb *usb, struct packet *pkt)
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pkt->status = USB_TD_OK;
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pkt->priv_data = NULL;
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cq_put(&usb->ep0->empty_frame_Q, pkt);
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/* confirm submitted packet */
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void fhci_transaction_confirm(struct fhci_usb *usb, struct packet *pkt)
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struct packet *td_pkt;
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td = fhci_remove_td_from_frame(usb->actual_frame);
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td->status = pkt->status;
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if (td->type == FHCI_TA_IN && td_pkt->info & PKT_DUMMY_PACKET) {
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if ((td->data + td->actual_len) && trans_len)
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memcpy(td->data + td->actual_len, pkt->data,
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cq_put(&usb->ep0->dummy_packets_Q, pkt->data);
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recycle_frame(usb, pkt);
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if (ed->mode == FHCI_TF_ISO) {
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if (ed->td_list.next->next != &ed->td_list) {
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list_entry(ed->td_list.next->next, struct td,
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td_next->start_frame = usb->actual_frame->frame_num;
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td->actual_len = trans_len;
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} else if ((td->status & USB_TD_ERROR) &&
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!(td->status & USB_TD_TX_ER_NAK)) {
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* There was an error on the transaction (but not NAK).
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* If it is fatal error (data underrun, stall, bad pid or 3
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* errors exceeded), mark this TD as done.
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if ((td->status & USB_TD_RX_DATA_UNDERUN) ||
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(td->status & USB_TD_TX_ER_STALL) ||
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(td->status & USB_TD_RX_ER_PID) ||
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(++td->error_cnt >= 3)) {
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ed->state = FHCI_ED_HALTED;
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if (td->status & USB_TD_RX_DATA_UNDERUN) {
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fhci_dbg(usb->fhci, "td err fu\n");
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td->toggle = !td->toggle;
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td->actual_len += trans_len;
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fhci_dbg(usb->fhci, "td err f!u\n");
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fhci_dbg(usb->fhci, "td err !f\n");
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/* it is not a fatal error -retry this transaction */
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td->status = USB_TD_OK;
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} else if (td->status & USB_TD_TX_ER_NAK) {
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/* there was a NAK response */
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fhci_vdbg(usb->fhci, "td nack\n");
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td->status = USB_TD_OK;
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/* there was no error on transaction */
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td->toggle = !td->toggle;
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td->actual_len += trans_len;
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if (td->len == td->actual_len)
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fhci_move_td_from_ed_to_done_list(usb, ed);
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* Flush all transmitted packets from BDs
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* This routine is called when disabling the USB port to flush all
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* transmissions that are already scheduled in the BDs
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void fhci_flush_all_transmissions(struct fhci_usb *usb)
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mode = in_8(&usb->fhci->regs->usb_mod);
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clrbits8(&usb->fhci->regs->usb_mod, USB_MODE_EN);
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while ((td = fhci_peek_td_from_frame(usb->actual_frame)) != NULL) {
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struct packet *pkt = td->pkt;
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pkt->status = USB_TD_TX_ER_TIMEOUT;
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fhci_transaction_confirm(usb, pkt);
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usb->actual_frame->frame_status = FRAME_END_TRANSMISSION;
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/* reset the event register */
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out_be16(&usb->fhci->regs->usb_event, 0xffff);
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/* enable the USB controller */
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out_8(&usb->fhci->regs->usb_mod, mode | USB_MODE_EN);
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* This function forms the packet and transmit the packet. This function
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* will handle all endpoint type:ISO,interrupt,control and bulk
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static int add_packet(struct fhci_usb *usb, struct ed *ed, struct td *td)
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u32 fw_transaction_time, len = 0;
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/* calcalate data address,len and toggle and then add the transaction */
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if (td->toggle == USB_TD_TOGGLE_CARRY)
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td->toggle = ed->toggle_carry;
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if (td->type != FHCI_TA_IN)
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len = min(td->len - td->actual_len, ed->max_pkt_size);
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if (!((td->type == FHCI_TA_IN) &&
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((len + td->actual_len) == td->len)))
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data = td->data + td->actual_len;
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len = min(td->len, ed->max_pkt_size);
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if (!((td->type == FHCI_TA_IN) &&
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((td->len + CRC_SIZE) >= ed->max_pkt_size)))
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if (usb->port_status == FHCI_PORT_FULL)
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fw_transaction_time = (((len + PROTOCOL_OVERHEAD) * 11) >> 4);
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fw_transaction_time = ((len + PROTOCOL_OVERHEAD) * 6);
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/* check if there's enough space in this frame to submit this TD */
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if (usb->actual_frame->total_bytes + len + PROTOCOL_OVERHEAD >=
199
usb->max_bytes_per_frame) {
200
fhci_vdbg(usb->fhci, "not enough space in this frame: "
201
"%d %d %d\n", usb->actual_frame->total_bytes, len,
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usb->max_bytes_per_frame);
206
/* check if there's enough time in this frame to submit this TD */
207
if (usb->actual_frame->frame_status != FRAME_IS_PREPARED &&
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(usb->actual_frame->frame_status & FRAME_END_TRANSMISSION ||
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(fw_transaction_time + usb->sw_transaction_time >=
210
1000 - fhci_get_sof_timer_count(usb)))) {
211
fhci_dbg(usb->fhci, "not enough time in this frame\n");
215
/* update frame object fields before transmitting */
216
pkt = cq_get(&usb->ep0->empty_frame_Q);
218
fhci_dbg(usb->fhci, "there is no empty frame\n");
225
data = cq_get(&usb->ep0->dummy_packets_Q);
227
pkt->info = PKT_DUMMY_PACKET;
231
pkt->status = USB_TD_OK;
232
/* update TD status field before transmitting */
233
td->status = USB_TD_INPROGRESS;
234
/* update actual frame time object with the actual transmission */
235
usb->actual_frame->total_bytes += (len + PROTOCOL_OVERHEAD);
236
fhci_add_td_to_frame(usb->actual_frame, td);
238
if (usb->port_status != FHCI_PORT_FULL &&
239
usb->port_status != FHCI_PORT_LOW) {
240
pkt->status = USB_TD_TX_ER_TIMEOUT;
242
fhci_transaction_confirm(usb, pkt);
243
} else if (fhci_host_transaction(usb, pkt, td->type, ed->dev_addr,
244
ed->ep_addr, ed->mode, ed->speed, td->toggle)) {
245
/* remove TD from actual frame */
246
list_del_init(&td->frame_lh);
247
td->status = USB_TD_OK;
248
if (pkt->info & PKT_DUMMY_PACKET)
249
cq_put(&usb->ep0->dummy_packets_Q, pkt->data);
250
recycle_frame(usb, pkt);
251
usb->actual_frame->total_bytes -= (len + PROTOCOL_OVERHEAD);
252
fhci_err(usb->fhci, "host transaction failed\n");
259
static void move_head_to_tail(struct list_head *list)
261
struct list_head *node = list->next;
263
if (!list_empty(list)) {
265
list_add_tail(node, list);
270
* This function goes through the endpoint list and schedules the
271
* transactions within this list
273
static int scan_ed_list(struct fhci_usb *usb,
274
struct list_head *list, enum fhci_tf_mode list_type)
276
static const int frame_part[4] = {
277
[FHCI_TF_CTRL] = MAX_BYTES_PER_FRAME,
278
[FHCI_TF_ISO] = (MAX_BYTES_PER_FRAME *
279
MAX_PERIODIC_FRAME_USAGE) / 100,
280
[FHCI_TF_BULK] = MAX_BYTES_PER_FRAME,
281
[FHCI_TF_INTR] = (MAX_BYTES_PER_FRAME *
282
MAX_PERIODIC_FRAME_USAGE) / 100
287
u32 save_transaction_time = usb->sw_transaction_time;
289
list_for_each_entry(ed, list, node) {
292
if (!td || (td && td->status == USB_TD_INPROGRESS))
295
if (ed->state != FHCI_ED_OPER) {
296
if (ed->state == FHCI_ED_URB_DEL) {
297
td->status = USB_TD_OK;
298
fhci_move_td_from_ed_to_done_list(usb, ed);
299
ed->state = FHCI_ED_SKIP;
305
* if it isn't interrupt pipe or it is not iso pipe and the
306
* interval time passed
308
if ((list_type == FHCI_TF_INTR || list_type == FHCI_TF_ISO) &&
309
(((usb->actual_frame->frame_num -
310
td->start_frame) & 0x7ff) < td->interval))
313
if (add_packet(usb, ed, td) < 0)
316
/* update time stamps in the TD */
317
td->start_frame = usb->actual_frame->frame_num;
318
usb->sw_transaction_time += save_transaction_time;
320
if (usb->actual_frame->total_bytes >=
321
usb->max_bytes_per_frame) {
322
usb->actual_frame->frame_status =
323
FRAME_DATA_END_TRANSMISSION;
324
fhci_push_dummy_bd(usb->ep0);
329
if (usb->actual_frame->total_bytes >= frame_part[list_type])
333
/* be fair to each ED(move list head around) */
334
move_head_to_tail(list);
335
usb->sw_transaction_time = save_transaction_time;
340
static u32 rotate_frames(struct fhci_usb *usb)
342
struct fhci_hcd *fhci = usb->fhci;
344
if (!list_empty(&usb->actual_frame->tds_list)) {
345
if ((((in_be16(&fhci->pram->frame_num) & 0x07ff) -
346
usb->actual_frame->frame_num) & 0x7ff) > 5)
347
fhci_flush_actual_frame(usb);
352
usb->actual_frame->frame_status = FRAME_IS_PREPARED;
353
usb->actual_frame->frame_num = in_be16(&fhci->pram->frame_num) & 0x7ff;
354
usb->actual_frame->total_bytes = 0;
360
* This function schedule the USB transaction and will process the
361
* endpoint in the following order: iso, interrupt, control and bulk.
363
void fhci_schedule_transactions(struct fhci_usb *usb)
367
if (usb->actual_frame->frame_status & FRAME_END_TRANSMISSION)
368
if (rotate_frames(usb) != 0)
371
if (usb->actual_frame->frame_status & FRAME_END_TRANSMISSION)
374
if (usb->actual_frame->total_bytes == 0) {
376
* schedule the next available ISO transfer
377
*or next stage of the ISO transfer
379
scan_ed_list(usb, &usb->hc_list->iso_list, FHCI_TF_ISO);
382
* schedule the next available interrupt transfer or
383
* the next stage of the interrupt transfer
385
scan_ed_list(usb, &usb->hc_list->intr_list, FHCI_TF_INTR);
388
* schedule the next available control transfer
389
* or the next stage of the control transfer
391
left = scan_ed_list(usb, &usb->hc_list->ctrl_list,
396
* schedule the next available bulk transfer or the next stage of the
400
scan_ed_list(usb, &usb->hc_list->bulk_list, FHCI_TF_BULK);
403
/* Handles SOF interrupt */
404
static void sof_interrupt(struct fhci_hcd *fhci)
406
struct fhci_usb *usb = fhci->usb_lld;
408
if ((usb->port_status == FHCI_PORT_DISABLED) &&
409
(usb->vroot_hub->port.wPortStatus & USB_PORT_STAT_CONNECTION) &&
410
!(usb->vroot_hub->port.wPortChange & USB_PORT_STAT_C_CONNECTION)) {
411
if (usb->vroot_hub->port.wPortStatus & USB_PORT_STAT_LOW_SPEED)
412
usb->port_status = FHCI_PORT_LOW;
414
usb->port_status = FHCI_PORT_FULL;
416
usb->saved_msk &= ~USB_E_IDLE_MASK;
417
out_be16(&usb->fhci->regs->usb_mask, usb->saved_msk);
420
gtm_set_exact_timer16(fhci->timer, usb->max_frame_usage, false);
422
fhci_host_transmit_actual_frame(usb);
423
usb->actual_frame->frame_status = FRAME_IS_TRANSMITTED;
425
fhci_schedule_transactions(usb);
428
/* Handles device disconnected interrupt on port */
429
void fhci_device_disconnected_interrupt(struct fhci_hcd *fhci)
431
struct fhci_usb *usb = fhci->usb_lld;
433
fhci_dbg(fhci, "-> %s\n", __func__);
435
fhci_usb_disable_interrupt(usb);
436
clrbits8(&usb->fhci->regs->usb_mod, USB_MODE_LSS);
437
usb->port_status = FHCI_PORT_DISABLED;
439
fhci_stop_sof_timer(fhci);
441
/* Enable IDLE since we want to know if something comes along */
442
usb->saved_msk |= USB_E_IDLE_MASK;
443
out_be16(&usb->fhci->regs->usb_mask, usb->saved_msk);
445
usb->vroot_hub->port.wPortStatus &= ~USB_PORT_STAT_CONNECTION;
446
usb->vroot_hub->port.wPortChange |= USB_PORT_STAT_C_CONNECTION;
447
usb->max_bytes_per_frame = 0;
448
fhci_usb_enable_interrupt(usb);
450
fhci_dbg(fhci, "<- %s\n", __func__);
453
/* detect a new device connected on the USB port */
454
void fhci_device_connected_interrupt(struct fhci_hcd *fhci)
457
struct fhci_usb *usb = fhci->usb_lld;
461
fhci_dbg(fhci, "-> %s\n", __func__);
463
fhci_usb_disable_interrupt(usb);
464
state = fhci_ioports_check_bus_state(fhci);
466
/* low-speed device was connected to the USB port */
468
ret = qe_usb_clock_set(fhci->lowspeed_clk, USB_CLOCK >> 3);
470
fhci_warn(fhci, "Low-Speed device is not supported, "
475
usb->port_status = FHCI_PORT_LOW;
476
setbits8(&usb->fhci->regs->usb_mod, USB_MODE_LSS);
477
usb->vroot_hub->port.wPortStatus |=
478
(USB_PORT_STAT_LOW_SPEED |
479
USB_PORT_STAT_CONNECTION);
480
usb->vroot_hub->port.wPortChange |=
481
USB_PORT_STAT_C_CONNECTION;
482
usb->max_bytes_per_frame =
483
(MAX_BYTES_PER_FRAME >> 3) - 7;
484
fhci_port_enable(usb);
485
} else if (state == 2) {
486
ret = qe_usb_clock_set(fhci->fullspeed_clk, USB_CLOCK);
488
fhci_warn(fhci, "Full-Speed device is not supported, "
493
usb->port_status = FHCI_PORT_FULL;
494
clrbits8(&usb->fhci->regs->usb_mod, USB_MODE_LSS);
495
usb->vroot_hub->port.wPortStatus &=
496
~USB_PORT_STAT_LOW_SPEED;
497
usb->vroot_hub->port.wPortStatus |=
498
USB_PORT_STAT_CONNECTION;
499
usb->vroot_hub->port.wPortChange |=
500
USB_PORT_STAT_C_CONNECTION;
501
usb->max_bytes_per_frame = (MAX_BYTES_PER_FRAME - 15);
502
fhci_port_enable(usb);
505
fhci_usb_enable_interrupt(usb);
506
fhci_dbg(fhci, "<- %s\n", __func__);
509
irqreturn_t fhci_frame_limit_timer_irq(int irq, void *_hcd)
511
struct usb_hcd *hcd = _hcd;
512
struct fhci_hcd *fhci = hcd_to_fhci(hcd);
513
struct fhci_usb *usb = fhci->usb_lld;
515
spin_lock(&fhci->lock);
517
gtm_set_exact_timer16(fhci->timer, 1000, false);
519
if (usb->actual_frame->frame_status == FRAME_IS_TRANSMITTED) {
520
usb->actual_frame->frame_status = FRAME_TIMER_END_TRANSMISSION;
521
fhci_push_dummy_bd(usb->ep0);
524
fhci_schedule_transactions(usb);
526
spin_unlock(&fhci->lock);
531
/* Cancel transmission on the USB endpoint */
532
static void abort_transmission(struct fhci_usb *usb)
534
fhci_dbg(usb->fhci, "-> %s\n", __func__);
535
/* issue stop Tx command */
536
qe_issue_cmd(QE_USB_STOP_TX, QE_CR_SUBBLOCK_USB, EP_ZERO, 0);
538
out_8(&usb->fhci->regs->usb_comm, USB_CMD_FLUSH_FIFO | EP_ZERO);
542
/* issue restart Tx command */
543
qe_issue_cmd(QE_USB_RESTART_TX, QE_CR_SUBBLOCK_USB, EP_ZERO, 0);
544
fhci_dbg(usb->fhci, "<- %s\n", __func__);
547
irqreturn_t fhci_irq(struct usb_hcd *hcd)
549
struct fhci_hcd *fhci = hcd_to_fhci(hcd);
550
struct fhci_usb *usb;
554
spin_lock_irqsave(&fhci->lock, flags);
558
usb_er |= in_be16(&usb->fhci->regs->usb_event) &
559
in_be16(&usb->fhci->regs->usb_mask);
561
/* clear event bits for next time */
562
out_be16(&usb->fhci->regs->usb_event, usb_er);
564
fhci_dbg_isr(fhci, usb_er);
566
if (usb_er & USB_E_RESET_MASK) {
567
if ((usb->port_status == FHCI_PORT_FULL) ||
568
(usb->port_status == FHCI_PORT_LOW)) {
569
fhci_device_disconnected_interrupt(fhci);
570
usb_er &= ~USB_E_IDLE_MASK;
571
} else if (usb->port_status == FHCI_PORT_WAITING) {
572
usb->port_status = FHCI_PORT_DISCONNECTING;
574
/* Turn on IDLE since we want to disconnect */
575
usb->saved_msk |= USB_E_IDLE_MASK;
576
out_be16(&usb->fhci->regs->usb_event,
578
} else if (usb->port_status == FHCI_PORT_DISABLED) {
579
if (fhci_ioports_check_bus_state(fhci) == 1)
580
fhci_device_connected_interrupt(fhci);
582
usb_er &= ~USB_E_RESET_MASK;
585
if (usb_er & USB_E_MSF_MASK) {
586
abort_transmission(fhci->usb_lld);
587
usb_er &= ~USB_E_MSF_MASK;
590
if (usb_er & (USB_E_SOF_MASK | USB_E_SFT_MASK)) {
592
usb_er &= ~(USB_E_SOF_MASK | USB_E_SFT_MASK);
595
if (usb_er & USB_E_TXB_MASK) {
596
fhci_tx_conf_interrupt(fhci->usb_lld);
597
usb_er &= ~USB_E_TXB_MASK;
600
if (usb_er & USB_E_TXE1_MASK) {
601
fhci_tx_conf_interrupt(fhci->usb_lld);
602
usb_er &= ~USB_E_TXE1_MASK;
605
if (usb_er & USB_E_IDLE_MASK) {
606
if (usb->port_status == FHCI_PORT_DISABLED) {
607
usb_er &= ~USB_E_RESET_MASK;
608
fhci_device_connected_interrupt(fhci);
609
} else if (usb->port_status ==
610
FHCI_PORT_DISCONNECTING) {
611
/* XXX usb->port_status = FHCI_PORT_WAITING; */
613
usb->saved_msk &= ~USB_E_IDLE_MASK;
614
out_be16(&usb->fhci->regs->usb_mask,
617
fhci_dbg_isr(fhci, -1);
620
usb_er &= ~USB_E_IDLE_MASK;
623
spin_unlock_irqrestore(&fhci->lock, flags);
630
* Process normal completions(error or success) and clean the schedule.
632
* This is the main path for handing urbs back to drivers. The only other patth
633
* is process_del_list(),which unlinks URBs by scanning EDs,instead of scanning
634
* the (re-reversed) done list as this does.
636
static void process_done_list(unsigned long data)
641
struct urb_priv *urb_priv;
642
struct fhci_hcd *fhci = (struct fhci_hcd *)data;
644
disable_irq(fhci->timer->irq);
645
disable_irq(fhci_to_hcd(fhci)->irq);
646
spin_lock(&fhci->lock);
648
td = fhci_remove_td_from_done_list(fhci->hc_list);
651
urb_priv = urb->hcpriv;
654
/* update URB's length and status from TD */
655
fhci_done_td(urb, td);
659
* if all this urb's TDs are done, call complete()
660
* Interrupt transfers are the onley special case:
661
* they are reissued,until "deleted" by usb_unlink_urb
662
* (real work done in a SOF intr, by process_del_list)
664
if (urb_priv->tds_cnt == urb_priv->num_of_tds) {
665
fhci_urb_complete_free(fhci, urb);
666
} else if (urb_priv->state == URB_DEL &&
667
ed->state == FHCI_ED_SKIP) {
668
fhci_del_ed_list(fhci, ed);
669
ed->state = FHCI_ED_OPER;
670
} else if (ed->state == FHCI_ED_HALTED) {
671
urb_priv->state = URB_DEL;
672
ed->state = FHCI_ED_URB_DEL;
673
fhci_del_ed_list(fhci, ed);
674
ed->state = FHCI_ED_OPER;
677
td = fhci_remove_td_from_done_list(fhci->hc_list);
680
spin_unlock(&fhci->lock);
681
enable_irq(fhci->timer->irq);
682
enable_irq(fhci_to_hcd(fhci)->irq);
685
DECLARE_TASKLET(fhci_tasklet, process_done_list, 0);
687
/* transfer complted callback */
688
u32 fhci_transfer_confirm_callback(struct fhci_hcd *fhci)
690
if (!fhci->process_done_task->state)
691
tasklet_schedule(fhci->process_done_task);
696
* adds urb to the endpoint descriptor list
698
* fhci data structure for the Low level host controller
699
* ep USB Host endpoint data structure
700
* urb USB request block data structure
702
void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb)
704
struct ed *ed = urb->ep->hcpriv;
705
struct urb_priv *urb_priv = urb->hcpriv;
706
u32 data_len = urb->transfer_buffer_length;
714
ed = fhci_get_empty_ed(fhci);
715
ed->dev_addr = usb_pipedevice(urb->pipe);
716
ed->ep_addr = usb_pipeendpoint(urb->pipe);
717
switch (usb_pipetype(urb->pipe)) {
719
ed->mode = FHCI_TF_CTRL;
722
ed->mode = FHCI_TF_BULK;
725
ed->mode = FHCI_TF_INTR;
727
case PIPE_ISOCHRONOUS:
728
ed->mode = FHCI_TF_ISO;
733
ed->speed = (urb->dev->speed == USB_SPEED_LOW) ?
734
FHCI_LOW_SPEED : FHCI_FULL_SPEED;
735
ed->max_pkt_size = usb_maxpacket(urb->dev,
736
urb->pipe, usb_pipeout(urb->pipe));
737
urb->ep->hcpriv = ed;
738
fhci_dbg(fhci, "new ep speed=%d max_pkt_size=%d\n",
739
ed->speed, ed->max_pkt_size);
742
/* for ISO transfer calculate start frame index */
743
if (ed->mode == FHCI_TF_ISO && urb->transfer_flags & URB_ISO_ASAP)
744
urb->start_frame = ed->td_head ? ed->last_iso + 1 :
748
* OHCI handles the DATA toggle itself,we just use the USB
751
if (usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe),
752
usb_pipeout(urb->pipe)))
753
toggle = USB_TD_TOGGLE_CARRY;
755
toggle = USB_TD_TOGGLE_DATA0;
756
usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
757
usb_pipeout(urb->pipe), 1);
760
urb_priv->tds_cnt = 0;
763
data = urb->transfer_buffer;
769
if (urb->transfer_flags & URB_ZERO_PACKET &&
770
urb->transfer_buffer_length > 0 &&
771
((urb->transfer_buffer_length %
772
usb_maxpacket(urb->dev, urb->pipe,
773
usb_pipeout(urb->pipe))) == 0))
774
urb_state = US_BULK0;
775
while (data_len > 4096) {
776
td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
777
usb_pipeout(urb->pipe) ? FHCI_TA_OUT :
779
cnt ? USB_TD_TOGGLE_CARRY :
781
data, 4096, 0, 0, true);
787
td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
788
usb_pipeout(urb->pipe) ? FHCI_TA_OUT : FHCI_TA_IN,
789
cnt ? USB_TD_TOGGLE_CARRY : toggle,
790
data, data_len, 0, 0, true);
793
if (urb->transfer_flags & URB_ZERO_PACKET &&
794
cnt < urb_priv->num_of_tds) {
795
td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
796
usb_pipeout(urb->pipe) ? FHCI_TA_OUT :
798
USB_TD_TOGGLE_CARRY, NULL, 0, 0, 0, true);
803
urb->start_frame = get_frame_num(fhci) + 1;
804
td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
805
usb_pipeout(urb->pipe) ? FHCI_TA_OUT : FHCI_TA_IN,
806
USB_TD_TOGGLE_DATA0, data, data_len,
807
urb->interval, urb->start_frame, true);
810
ed->dev_addr = usb_pipedevice(urb->pipe);
811
ed->max_pkt_size = usb_maxpacket(urb->dev, urb->pipe,
812
usb_pipeout(urb->pipe));
814
td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++, FHCI_TA_SETUP,
815
USB_TD_TOGGLE_DATA0, urb->setup_packet, 8, 0, 0, true);
819
td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
820
usb_pipeout(urb->pipe) ? FHCI_TA_OUT :
822
USB_TD_TOGGLE_DATA1, data, data_len, 0, 0,
828
td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
829
(usb_pipeout(urb->pipe) ? FHCI_TA_IN :
831
USB_TD_TOGGLE_DATA1, data, 0, 0, 0, true);
833
td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt++,
835
USB_TD_TOGGLE_DATA1, data, 0, 0, 0, true);
837
urb_state = US_CTRL_SETUP;
840
for (cnt = 0; cnt < urb->number_of_packets; cnt++) {
841
u16 frame = urb->start_frame;
844
* FIXME scheduling should handle frame counter
845
* roll-around ... exotic case (and OHCI has
846
* a 2^16 iso range, vs other HCs max of 2^10)
848
frame += cnt * urb->interval;
850
td = fhci_td_fill(fhci, urb, urb_priv, ed, cnt,
851
usb_pipeout(urb->pipe) ? FHCI_TA_OUT :
854
data + urb->iso_frame_desc[cnt].offset,
855
urb->iso_frame_desc[cnt].length,
856
urb->interval, frame, true);
864
* set the state of URB
865
* control pipe:3 states -- setup,data,status
866
* interrupt and bulk pipe:1 state -- data
869
urb->pipe |= urb_state & 0x1f;
871
urb_priv->state = URB_INPROGRESS;
874
ed->state = FHCI_ED_OPER;
877
list_add(&ed->node, &fhci->hc_list->ctrl_list);
880
list_add(&ed->node, &fhci->hc_list->bulk_list);
883
list_add(&ed->node, &fhci->hc_list->intr_list);
886
list_add(&ed->node, &fhci->hc_list->iso_list);
893
fhci_add_tds_to_ed(ed, urb_priv->tds, urb_priv->num_of_tds);