Greg Kroah-Hartman | 5fd54ac | 2017-11-03 11:28:30 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 2 | /* |
| 3 | * Freescale QUICC Engine USB Host Controller Driver |
| 4 | * |
Jerry Huang | 273d235 | 2011-10-18 13:09:48 +0800 | [diff] [blame] | 5 | * Copyright (c) Freescale Semicondutor, Inc. 2006, 2011. |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 6 | * Shlomi Gridish <gridish@freescale.com> |
| 7 | * Jerry Huang <Chang-Ming.Huang@freescale.com> |
| 8 | * Copyright (c) Logic Product Development, Inc. 2007 |
| 9 | * Peter Barada <peterb@logicpd.com> |
| 10 | * Copyright (c) MontaVista Software, Inc. 2008. |
| 11 | * Anton Vorontsov <avorontsov@ru.mvista.com> |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 12 | */ |
| 13 | |
| 14 | #include <linux/kernel.h> |
| 15 | #include <linux/types.h> |
| 16 | #include <linux/spinlock.h> |
| 17 | #include <linux/delay.h> |
| 18 | #include <linux/errno.h> |
| 19 | #include <linux/list.h> |
| 20 | #include <linux/interrupt.h> |
| 21 | #include <linux/io.h> |
| 22 | #include <linux/usb.h> |
Eric Lescouet | 27729aa | 2010-04-24 23:21:52 +0200 | [diff] [blame] | 23 | #include <linux/usb/hcd.h> |
Zhao Qiang | 7aa1aa6e | 2015-11-30 10:48:57 +0800 | [diff] [blame] | 24 | #include <soc/fsl/qe/qe.h> |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 25 | #include <asm/fsl_gtm.h> |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 26 | #include "fhci.h" |
| 27 | |
| 28 | static void recycle_frame(struct fhci_usb *usb, struct packet *pkt) |
| 29 | { |
| 30 | pkt->data = NULL; |
| 31 | pkt->len = 0; |
| 32 | pkt->status = USB_TD_OK; |
| 33 | pkt->info = 0; |
| 34 | pkt->priv_data = NULL; |
| 35 | |
Stefani Seibold | 4546548 | 2009-12-21 14:37:26 -0800 | [diff] [blame] | 36 | cq_put(&usb->ep0->empty_frame_Q, pkt); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 37 | } |
| 38 | |
| 39 | /* confirm submitted packet */ |
| 40 | void fhci_transaction_confirm(struct fhci_usb *usb, struct packet *pkt) |
| 41 | { |
| 42 | struct td *td; |
| 43 | struct packet *td_pkt; |
| 44 | struct ed *ed; |
| 45 | u32 trans_len; |
| 46 | bool td_done = false; |
| 47 | |
| 48 | td = fhci_remove_td_from_frame(usb->actual_frame); |
| 49 | td_pkt = td->pkt; |
| 50 | trans_len = pkt->len; |
| 51 | td->status = pkt->status; |
| 52 | if (td->type == FHCI_TA_IN && td_pkt->info & PKT_DUMMY_PACKET) { |
| 53 | if ((td->data + td->actual_len) && trans_len) |
| 54 | memcpy(td->data + td->actual_len, pkt->data, |
| 55 | trans_len); |
Stefani Seibold | 4546548 | 2009-12-21 14:37:26 -0800 | [diff] [blame] | 56 | cq_put(&usb->ep0->dummy_packets_Q, pkt->data); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 57 | } |
| 58 | |
| 59 | recycle_frame(usb, pkt); |
| 60 | |
| 61 | ed = td->ed; |
| 62 | if (ed->mode == FHCI_TF_ISO) { |
| 63 | if (ed->td_list.next->next != &ed->td_list) { |
| 64 | struct td *td_next = |
| 65 | list_entry(ed->td_list.next->next, struct td, |
| 66 | node); |
| 67 | |
| 68 | td_next->start_frame = usb->actual_frame->frame_num; |
| 69 | } |
| 70 | td->actual_len = trans_len; |
| 71 | td_done = true; |
| 72 | } else if ((td->status & USB_TD_ERROR) && |
| 73 | !(td->status & USB_TD_TX_ER_NAK)) { |
| 74 | /* |
| 75 | * There was an error on the transaction (but not NAK). |
| 76 | * If it is fatal error (data underrun, stall, bad pid or 3 |
| 77 | * errors exceeded), mark this TD as done. |
| 78 | */ |
| 79 | if ((td->status & USB_TD_RX_DATA_UNDERUN) || |
| 80 | (td->status & USB_TD_TX_ER_STALL) || |
| 81 | (td->status & USB_TD_RX_ER_PID) || |
| 82 | (++td->error_cnt >= 3)) { |
| 83 | ed->state = FHCI_ED_HALTED; |
| 84 | td_done = true; |
| 85 | |
| 86 | if (td->status & USB_TD_RX_DATA_UNDERUN) { |
| 87 | fhci_dbg(usb->fhci, "td err fu\n"); |
| 88 | td->toggle = !td->toggle; |
| 89 | td->actual_len += trans_len; |
| 90 | } else { |
| 91 | fhci_dbg(usb->fhci, "td err f!u\n"); |
| 92 | } |
| 93 | } else { |
| 94 | fhci_dbg(usb->fhci, "td err !f\n"); |
| 95 | /* it is not a fatal error -retry this transaction */ |
| 96 | td->nak_cnt = 0; |
| 97 | td->error_cnt++; |
| 98 | td->status = USB_TD_OK; |
| 99 | } |
| 100 | } else if (td->status & USB_TD_TX_ER_NAK) { |
| 101 | /* there was a NAK response */ |
| 102 | fhci_vdbg(usb->fhci, "td nack\n"); |
| 103 | td->nak_cnt++; |
| 104 | td->error_cnt = 0; |
| 105 | td->status = USB_TD_OK; |
| 106 | } else { |
| 107 | /* there was no error on transaction */ |
| 108 | td->error_cnt = 0; |
| 109 | td->nak_cnt = 0; |
| 110 | td->toggle = !td->toggle; |
| 111 | td->actual_len += trans_len; |
| 112 | |
| 113 | if (td->len == td->actual_len) |
| 114 | td_done = true; |
| 115 | } |
| 116 | |
| 117 | if (td_done) |
| 118 | fhci_move_td_from_ed_to_done_list(usb, ed); |
| 119 | } |
| 120 | |
| 121 | /* |
| 122 | * Flush all transmitted packets from BDs |
| 123 | * This routine is called when disabling the USB port to flush all |
Uwe Kleine-König | 698f931 | 2010-07-02 20:41:51 +0200 | [diff] [blame] | 124 | * transmissions that are already scheduled in the BDs |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 125 | */ |
| 126 | void fhci_flush_all_transmissions(struct fhci_usb *usb) |
| 127 | { |
| 128 | u8 mode; |
| 129 | struct td *td; |
| 130 | |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 131 | mode = in_8(&usb->fhci->regs->usb_usmod); |
| 132 | clrbits8(&usb->fhci->regs->usb_usmod, USB_MODE_EN); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 133 | |
| 134 | fhci_flush_bds(usb); |
| 135 | |
| 136 | while ((td = fhci_peek_td_from_frame(usb->actual_frame)) != NULL) { |
| 137 | struct packet *pkt = td->pkt; |
| 138 | |
| 139 | pkt->status = USB_TD_TX_ER_TIMEOUT; |
| 140 | fhci_transaction_confirm(usb, pkt); |
| 141 | } |
| 142 | |
| 143 | usb->actual_frame->frame_status = FRAME_END_TRANSMISSION; |
| 144 | |
| 145 | /* reset the event register */ |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 146 | out_be16(&usb->fhci->regs->usb_usber, 0xffff); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 147 | /* enable the USB controller */ |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 148 | out_8(&usb->fhci->regs->usb_usmod, mode | USB_MODE_EN); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | /* |
| 152 | * This function forms the packet and transmit the packet. This function |
| 153 | * will handle all endpoint type:ISO,interrupt,control and bulk |
| 154 | */ |
| 155 | static int add_packet(struct fhci_usb *usb, struct ed *ed, struct td *td) |
| 156 | { |
| 157 | u32 fw_transaction_time, len = 0; |
| 158 | struct packet *pkt; |
| 159 | u8 *data = NULL; |
| 160 | |
| 161 | /* calcalate data address,len and toggle and then add the transaction */ |
| 162 | if (td->toggle == USB_TD_TOGGLE_CARRY) |
| 163 | td->toggle = ed->toggle_carry; |
| 164 | |
| 165 | switch (ed->mode) { |
| 166 | case FHCI_TF_ISO: |
| 167 | len = td->len; |
| 168 | if (td->type != FHCI_TA_IN) |
| 169 | data = td->data; |
| 170 | break; |
| 171 | case FHCI_TF_CTRL: |
| 172 | case FHCI_TF_BULK: |
| 173 | len = min(td->len - td->actual_len, ed->max_pkt_size); |
| 174 | if (!((td->type == FHCI_TA_IN) && |
| 175 | ((len + td->actual_len) == td->len))) |
| 176 | data = td->data + td->actual_len; |
| 177 | break; |
| 178 | case FHCI_TF_INTR: |
| 179 | len = min(td->len, ed->max_pkt_size); |
| 180 | if (!((td->type == FHCI_TA_IN) && |
| 181 | ((td->len + CRC_SIZE) >= ed->max_pkt_size))) |
| 182 | data = td->data; |
| 183 | break; |
| 184 | default: |
| 185 | break; |
| 186 | } |
| 187 | |
| 188 | if (usb->port_status == FHCI_PORT_FULL) |
| 189 | fw_transaction_time = (((len + PROTOCOL_OVERHEAD) * 11) >> 4); |
| 190 | else |
| 191 | fw_transaction_time = ((len + PROTOCOL_OVERHEAD) * 6); |
| 192 | |
| 193 | /* check if there's enough space in this frame to submit this TD */ |
| 194 | if (usb->actual_frame->total_bytes + len + PROTOCOL_OVERHEAD >= |
| 195 | usb->max_bytes_per_frame) { |
| 196 | fhci_vdbg(usb->fhci, "not enough space in this frame: " |
| 197 | "%d %d %d\n", usb->actual_frame->total_bytes, len, |
| 198 | usb->max_bytes_per_frame); |
| 199 | return -1; |
| 200 | } |
| 201 | |
| 202 | /* check if there's enough time in this frame to submit this TD */ |
| 203 | if (usb->actual_frame->frame_status != FRAME_IS_PREPARED && |
| 204 | (usb->actual_frame->frame_status & FRAME_END_TRANSMISSION || |
| 205 | (fw_transaction_time + usb->sw_transaction_time >= |
| 206 | 1000 - fhci_get_sof_timer_count(usb)))) { |
| 207 | fhci_dbg(usb->fhci, "not enough time in this frame\n"); |
| 208 | return -1; |
| 209 | } |
| 210 | |
| 211 | /* update frame object fields before transmitting */ |
Stefani Seibold | 4546548 | 2009-12-21 14:37:26 -0800 | [diff] [blame] | 212 | pkt = cq_get(&usb->ep0->empty_frame_Q); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 213 | if (!pkt) { |
| 214 | fhci_dbg(usb->fhci, "there is no empty frame\n"); |
| 215 | return -1; |
| 216 | } |
| 217 | td->pkt = pkt; |
| 218 | |
| 219 | pkt->info = 0; |
| 220 | if (data == NULL) { |
Stefani Seibold | 4546548 | 2009-12-21 14:37:26 -0800 | [diff] [blame] | 221 | data = cq_get(&usb->ep0->dummy_packets_Q); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 222 | BUG_ON(!data); |
| 223 | pkt->info = PKT_DUMMY_PACKET; |
| 224 | } |
| 225 | pkt->data = data; |
| 226 | pkt->len = len; |
| 227 | pkt->status = USB_TD_OK; |
| 228 | /* update TD status field before transmitting */ |
| 229 | td->status = USB_TD_INPROGRESS; |
| 230 | /* update actual frame time object with the actual transmission */ |
| 231 | usb->actual_frame->total_bytes += (len + PROTOCOL_OVERHEAD); |
| 232 | fhci_add_td_to_frame(usb->actual_frame, td); |
| 233 | |
| 234 | if (usb->port_status != FHCI_PORT_FULL && |
| 235 | usb->port_status != FHCI_PORT_LOW) { |
| 236 | pkt->status = USB_TD_TX_ER_TIMEOUT; |
| 237 | pkt->len = 0; |
| 238 | fhci_transaction_confirm(usb, pkt); |
| 239 | } else if (fhci_host_transaction(usb, pkt, td->type, ed->dev_addr, |
| 240 | ed->ep_addr, ed->mode, ed->speed, td->toggle)) { |
| 241 | /* remove TD from actual frame */ |
| 242 | list_del_init(&td->frame_lh); |
| 243 | td->status = USB_TD_OK; |
| 244 | if (pkt->info & PKT_DUMMY_PACKET) |
Stefani Seibold | 4546548 | 2009-12-21 14:37:26 -0800 | [diff] [blame] | 245 | cq_put(&usb->ep0->dummy_packets_Q, pkt->data); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 246 | recycle_frame(usb, pkt); |
| 247 | usb->actual_frame->total_bytes -= (len + PROTOCOL_OVERHEAD); |
| 248 | fhci_err(usb->fhci, "host transaction failed\n"); |
| 249 | return -1; |
| 250 | } |
| 251 | |
| 252 | return len; |
| 253 | } |
| 254 | |
| 255 | static void move_head_to_tail(struct list_head *list) |
| 256 | { |
| 257 | struct list_head *node = list->next; |
| 258 | |
| 259 | if (!list_empty(list)) { |
Wei Yongjun | 027c521 | 2012-09-05 14:41:44 +0800 | [diff] [blame] | 260 | list_move_tail(node, list); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 261 | } |
| 262 | } |
| 263 | |
| 264 | /* |
| 265 | * This function goes through the endpoint list and schedules the |
| 266 | * transactions within this list |
| 267 | */ |
| 268 | static int scan_ed_list(struct fhci_usb *usb, |
| 269 | struct list_head *list, enum fhci_tf_mode list_type) |
| 270 | { |
| 271 | static const int frame_part[4] = { |
| 272 | [FHCI_TF_CTRL] = MAX_BYTES_PER_FRAME, |
| 273 | [FHCI_TF_ISO] = (MAX_BYTES_PER_FRAME * |
| 274 | MAX_PERIODIC_FRAME_USAGE) / 100, |
| 275 | [FHCI_TF_BULK] = MAX_BYTES_PER_FRAME, |
| 276 | [FHCI_TF_INTR] = (MAX_BYTES_PER_FRAME * |
| 277 | MAX_PERIODIC_FRAME_USAGE) / 100 |
| 278 | }; |
| 279 | struct ed *ed; |
| 280 | struct td *td; |
| 281 | int ans = 1; |
| 282 | u32 save_transaction_time = usb->sw_transaction_time; |
| 283 | |
| 284 | list_for_each_entry(ed, list, node) { |
| 285 | td = ed->td_head; |
| 286 | |
Heinrich Schuchardt | 2b4ba25 | 2016-05-09 00:15:31 +0200 | [diff] [blame] | 287 | if (!td || td->status == USB_TD_INPROGRESS) |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 288 | continue; |
| 289 | |
| 290 | if (ed->state != FHCI_ED_OPER) { |
| 291 | if (ed->state == FHCI_ED_URB_DEL) { |
| 292 | td->status = USB_TD_OK; |
| 293 | fhci_move_td_from_ed_to_done_list(usb, ed); |
| 294 | ed->state = FHCI_ED_SKIP; |
| 295 | } |
| 296 | continue; |
| 297 | } |
| 298 | |
| 299 | /* |
| 300 | * if it isn't interrupt pipe or it is not iso pipe and the |
| 301 | * interval time passed |
| 302 | */ |
| 303 | if ((list_type == FHCI_TF_INTR || list_type == FHCI_TF_ISO) && |
| 304 | (((usb->actual_frame->frame_num - |
| 305 | td->start_frame) & 0x7ff) < td->interval)) |
| 306 | continue; |
| 307 | |
| 308 | if (add_packet(usb, ed, td) < 0) |
| 309 | continue; |
| 310 | |
| 311 | /* update time stamps in the TD */ |
| 312 | td->start_frame = usb->actual_frame->frame_num; |
| 313 | usb->sw_transaction_time += save_transaction_time; |
| 314 | |
| 315 | if (usb->actual_frame->total_bytes >= |
| 316 | usb->max_bytes_per_frame) { |
| 317 | usb->actual_frame->frame_status = |
| 318 | FRAME_DATA_END_TRANSMISSION; |
| 319 | fhci_push_dummy_bd(usb->ep0); |
| 320 | ans = 0; |
| 321 | break; |
| 322 | } |
| 323 | |
| 324 | if (usb->actual_frame->total_bytes >= frame_part[list_type]) |
| 325 | break; |
| 326 | } |
| 327 | |
| 328 | /* be fair to each ED(move list head around) */ |
| 329 | move_head_to_tail(list); |
| 330 | usb->sw_transaction_time = save_transaction_time; |
| 331 | |
| 332 | return ans; |
| 333 | } |
| 334 | |
| 335 | static u32 rotate_frames(struct fhci_usb *usb) |
| 336 | { |
| 337 | struct fhci_hcd *fhci = usb->fhci; |
| 338 | |
| 339 | if (!list_empty(&usb->actual_frame->tds_list)) { |
| 340 | if ((((in_be16(&fhci->pram->frame_num) & 0x07ff) - |
| 341 | usb->actual_frame->frame_num) & 0x7ff) > 5) |
| 342 | fhci_flush_actual_frame(usb); |
| 343 | else |
| 344 | return -EINVAL; |
| 345 | } |
| 346 | |
| 347 | usb->actual_frame->frame_status = FRAME_IS_PREPARED; |
| 348 | usb->actual_frame->frame_num = in_be16(&fhci->pram->frame_num) & 0x7ff; |
| 349 | usb->actual_frame->total_bytes = 0; |
| 350 | |
| 351 | return 0; |
| 352 | } |
| 353 | |
| 354 | /* |
| 355 | * This function schedule the USB transaction and will process the |
| 356 | * endpoint in the following order: iso, interrupt, control and bulk. |
| 357 | */ |
| 358 | void fhci_schedule_transactions(struct fhci_usb *usb) |
| 359 | { |
| 360 | int left = 1; |
| 361 | |
| 362 | if (usb->actual_frame->frame_status & FRAME_END_TRANSMISSION) |
| 363 | if (rotate_frames(usb) != 0) |
| 364 | return; |
| 365 | |
| 366 | if (usb->actual_frame->frame_status & FRAME_END_TRANSMISSION) |
| 367 | return; |
| 368 | |
| 369 | if (usb->actual_frame->total_bytes == 0) { |
| 370 | /* |
| 371 | * schedule the next available ISO transfer |
| 372 | *or next stage of the ISO transfer |
| 373 | */ |
| 374 | scan_ed_list(usb, &usb->hc_list->iso_list, FHCI_TF_ISO); |
| 375 | |
| 376 | /* |
| 377 | * schedule the next available interrupt transfer or |
| 378 | * the next stage of the interrupt transfer |
| 379 | */ |
| 380 | scan_ed_list(usb, &usb->hc_list->intr_list, FHCI_TF_INTR); |
| 381 | |
| 382 | /* |
| 383 | * schedule the next available control transfer |
| 384 | * or the next stage of the control transfer |
| 385 | */ |
| 386 | left = scan_ed_list(usb, &usb->hc_list->ctrl_list, |
| 387 | FHCI_TF_CTRL); |
| 388 | } |
| 389 | |
| 390 | /* |
| 391 | * schedule the next available bulk transfer or the next stage of the |
| 392 | * bulk transfer |
| 393 | */ |
| 394 | if (left > 0) |
| 395 | scan_ed_list(usb, &usb->hc_list->bulk_list, FHCI_TF_BULK); |
| 396 | } |
| 397 | |
| 398 | /* Handles SOF interrupt */ |
| 399 | static void sof_interrupt(struct fhci_hcd *fhci) |
| 400 | { |
| 401 | struct fhci_usb *usb = fhci->usb_lld; |
| 402 | |
| 403 | if ((usb->port_status == FHCI_PORT_DISABLED) && |
| 404 | (usb->vroot_hub->port.wPortStatus & USB_PORT_STAT_CONNECTION) && |
| 405 | !(usb->vroot_hub->port.wPortChange & USB_PORT_STAT_C_CONNECTION)) { |
| 406 | if (usb->vroot_hub->port.wPortStatus & USB_PORT_STAT_LOW_SPEED) |
| 407 | usb->port_status = FHCI_PORT_LOW; |
| 408 | else |
| 409 | usb->port_status = FHCI_PORT_FULL; |
| 410 | /* Disable IDLE */ |
| 411 | usb->saved_msk &= ~USB_E_IDLE_MASK; |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 412 | out_be16(&usb->fhci->regs->usb_usbmr, usb->saved_msk); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 413 | } |
| 414 | |
| 415 | gtm_set_exact_timer16(fhci->timer, usb->max_frame_usage, false); |
| 416 | |
| 417 | fhci_host_transmit_actual_frame(usb); |
| 418 | usb->actual_frame->frame_status = FRAME_IS_TRANSMITTED; |
| 419 | |
| 420 | fhci_schedule_transactions(usb); |
| 421 | } |
| 422 | |
| 423 | /* Handles device disconnected interrupt on port */ |
| 424 | void fhci_device_disconnected_interrupt(struct fhci_hcd *fhci) |
| 425 | { |
| 426 | struct fhci_usb *usb = fhci->usb_lld; |
| 427 | |
| 428 | fhci_dbg(fhci, "-> %s\n", __func__); |
| 429 | |
| 430 | fhci_usb_disable_interrupt(usb); |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 431 | clrbits8(&usb->fhci->regs->usb_usmod, USB_MODE_LSS); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 432 | usb->port_status = FHCI_PORT_DISABLED; |
| 433 | |
| 434 | fhci_stop_sof_timer(fhci); |
| 435 | |
| 436 | /* Enable IDLE since we want to know if something comes along */ |
| 437 | usb->saved_msk |= USB_E_IDLE_MASK; |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 438 | out_be16(&usb->fhci->regs->usb_usbmr, usb->saved_msk); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 439 | |
| 440 | usb->vroot_hub->port.wPortStatus &= ~USB_PORT_STAT_CONNECTION; |
| 441 | usb->vroot_hub->port.wPortChange |= USB_PORT_STAT_C_CONNECTION; |
| 442 | usb->max_bytes_per_frame = 0; |
| 443 | fhci_usb_enable_interrupt(usb); |
| 444 | |
| 445 | fhci_dbg(fhci, "<- %s\n", __func__); |
| 446 | } |
| 447 | |
| 448 | /* detect a new device connected on the USB port */ |
| 449 | void fhci_device_connected_interrupt(struct fhci_hcd *fhci) |
| 450 | { |
| 451 | |
| 452 | struct fhci_usb *usb = fhci->usb_lld; |
| 453 | int state; |
| 454 | int ret; |
| 455 | |
| 456 | fhci_dbg(fhci, "-> %s\n", __func__); |
| 457 | |
| 458 | fhci_usb_disable_interrupt(usb); |
| 459 | state = fhci_ioports_check_bus_state(fhci); |
| 460 | |
| 461 | /* low-speed device was connected to the USB port */ |
| 462 | if (state == 1) { |
| 463 | ret = qe_usb_clock_set(fhci->lowspeed_clk, USB_CLOCK >> 3); |
| 464 | if (ret) { |
| 465 | fhci_warn(fhci, "Low-Speed device is not supported, " |
| 466 | "try use BRGx\n"); |
| 467 | goto out; |
| 468 | } |
| 469 | |
| 470 | usb->port_status = FHCI_PORT_LOW; |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 471 | setbits8(&usb->fhci->regs->usb_usmod, USB_MODE_LSS); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 472 | usb->vroot_hub->port.wPortStatus |= |
| 473 | (USB_PORT_STAT_LOW_SPEED | |
| 474 | USB_PORT_STAT_CONNECTION); |
| 475 | usb->vroot_hub->port.wPortChange |= |
| 476 | USB_PORT_STAT_C_CONNECTION; |
| 477 | usb->max_bytes_per_frame = |
| 478 | (MAX_BYTES_PER_FRAME >> 3) - 7; |
| 479 | fhci_port_enable(usb); |
| 480 | } else if (state == 2) { |
| 481 | ret = qe_usb_clock_set(fhci->fullspeed_clk, USB_CLOCK); |
| 482 | if (ret) { |
| 483 | fhci_warn(fhci, "Full-Speed device is not supported, " |
| 484 | "try use CLKx\n"); |
| 485 | goto out; |
| 486 | } |
| 487 | |
| 488 | usb->port_status = FHCI_PORT_FULL; |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 489 | clrbits8(&usb->fhci->regs->usb_usmod, USB_MODE_LSS); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 490 | usb->vroot_hub->port.wPortStatus &= |
| 491 | ~USB_PORT_STAT_LOW_SPEED; |
| 492 | usb->vroot_hub->port.wPortStatus |= |
| 493 | USB_PORT_STAT_CONNECTION; |
| 494 | usb->vroot_hub->port.wPortChange |= |
| 495 | USB_PORT_STAT_C_CONNECTION; |
| 496 | usb->max_bytes_per_frame = (MAX_BYTES_PER_FRAME - 15); |
| 497 | fhci_port_enable(usb); |
| 498 | } |
| 499 | out: |
| 500 | fhci_usb_enable_interrupt(usb); |
| 501 | fhci_dbg(fhci, "<- %s\n", __func__); |
| 502 | } |
| 503 | |
| 504 | irqreturn_t fhci_frame_limit_timer_irq(int irq, void *_hcd) |
| 505 | { |
| 506 | struct usb_hcd *hcd = _hcd; |
| 507 | struct fhci_hcd *fhci = hcd_to_fhci(hcd); |
| 508 | struct fhci_usb *usb = fhci->usb_lld; |
| 509 | |
| 510 | spin_lock(&fhci->lock); |
| 511 | |
| 512 | gtm_set_exact_timer16(fhci->timer, 1000, false); |
| 513 | |
| 514 | if (usb->actual_frame->frame_status == FRAME_IS_TRANSMITTED) { |
| 515 | usb->actual_frame->frame_status = FRAME_TIMER_END_TRANSMISSION; |
| 516 | fhci_push_dummy_bd(usb->ep0); |
| 517 | } |
| 518 | |
| 519 | fhci_schedule_transactions(usb); |
| 520 | |
| 521 | spin_unlock(&fhci->lock); |
| 522 | |
| 523 | return IRQ_HANDLED; |
| 524 | } |
| 525 | |
| 526 | /* Cancel transmission on the USB endpoint */ |
| 527 | static void abort_transmission(struct fhci_usb *usb) |
| 528 | { |
| 529 | fhci_dbg(usb->fhci, "-> %s\n", __func__); |
| 530 | /* issue stop Tx command */ |
| 531 | qe_issue_cmd(QE_USB_STOP_TX, QE_CR_SUBBLOCK_USB, EP_ZERO, 0); |
| 532 | /* flush Tx FIFOs */ |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 533 | out_8(&usb->fhci->regs->usb_uscom, USB_CMD_FLUSH_FIFO | EP_ZERO); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 534 | udelay(1000); |
| 535 | /* reset Tx BDs */ |
| 536 | fhci_flush_bds(usb); |
| 537 | /* issue restart Tx command */ |
| 538 | qe_issue_cmd(QE_USB_RESTART_TX, QE_CR_SUBBLOCK_USB, EP_ZERO, 0); |
| 539 | fhci_dbg(usb->fhci, "<- %s\n", __func__); |
| 540 | } |
| 541 | |
| 542 | irqreturn_t fhci_irq(struct usb_hcd *hcd) |
| 543 | { |
| 544 | struct fhci_hcd *fhci = hcd_to_fhci(hcd); |
| 545 | struct fhci_usb *usb; |
| 546 | u16 usb_er = 0; |
| 547 | unsigned long flags; |
| 548 | |
| 549 | spin_lock_irqsave(&fhci->lock, flags); |
| 550 | |
| 551 | usb = fhci->usb_lld; |
| 552 | |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 553 | usb_er |= in_be16(&usb->fhci->regs->usb_usber) & |
| 554 | in_be16(&usb->fhci->regs->usb_usbmr); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 555 | |
| 556 | /* clear event bits for next time */ |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 557 | out_be16(&usb->fhci->regs->usb_usber, usb_er); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 558 | |
| 559 | fhci_dbg_isr(fhci, usb_er); |
| 560 | |
| 561 | if (usb_er & USB_E_RESET_MASK) { |
| 562 | if ((usb->port_status == FHCI_PORT_FULL) || |
| 563 | (usb->port_status == FHCI_PORT_LOW)) { |
| 564 | fhci_device_disconnected_interrupt(fhci); |
| 565 | usb_er &= ~USB_E_IDLE_MASK; |
| 566 | } else if (usb->port_status == FHCI_PORT_WAITING) { |
| 567 | usb->port_status = FHCI_PORT_DISCONNECTING; |
| 568 | |
| 569 | /* Turn on IDLE since we want to disconnect */ |
| 570 | usb->saved_msk |= USB_E_IDLE_MASK; |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 571 | out_be16(&usb->fhci->regs->usb_usber, |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 572 | usb->saved_msk); |
| 573 | } else if (usb->port_status == FHCI_PORT_DISABLED) { |
Roel Kluin | 9525dcb | 2009-06-10 12:57:35 -0700 | [diff] [blame] | 574 | if (fhci_ioports_check_bus_state(fhci) == 1) |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 575 | fhci_device_connected_interrupt(fhci); |
| 576 | } |
| 577 | usb_er &= ~USB_E_RESET_MASK; |
| 578 | } |
| 579 | |
| 580 | if (usb_er & USB_E_MSF_MASK) { |
| 581 | abort_transmission(fhci->usb_lld); |
| 582 | usb_er &= ~USB_E_MSF_MASK; |
| 583 | } |
| 584 | |
| 585 | if (usb_er & (USB_E_SOF_MASK | USB_E_SFT_MASK)) { |
| 586 | sof_interrupt(fhci); |
| 587 | usb_er &= ~(USB_E_SOF_MASK | USB_E_SFT_MASK); |
| 588 | } |
| 589 | |
| 590 | if (usb_er & USB_E_TXB_MASK) { |
| 591 | fhci_tx_conf_interrupt(fhci->usb_lld); |
| 592 | usb_er &= ~USB_E_TXB_MASK; |
| 593 | } |
| 594 | |
| 595 | if (usb_er & USB_E_TXE1_MASK) { |
| 596 | fhci_tx_conf_interrupt(fhci->usb_lld); |
| 597 | usb_er &= ~USB_E_TXE1_MASK; |
| 598 | } |
| 599 | |
| 600 | if (usb_er & USB_E_IDLE_MASK) { |
Roel Kluin | 9525dcb | 2009-06-10 12:57:35 -0700 | [diff] [blame] | 601 | if (usb->port_status == FHCI_PORT_DISABLED) { |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 602 | usb_er &= ~USB_E_RESET_MASK; |
| 603 | fhci_device_connected_interrupt(fhci); |
| 604 | } else if (usb->port_status == |
| 605 | FHCI_PORT_DISCONNECTING) { |
| 606 | /* XXX usb->port_status = FHCI_PORT_WAITING; */ |
| 607 | /* Disable IDLE */ |
| 608 | usb->saved_msk &= ~USB_E_IDLE_MASK; |
Guilherme Maciel Ferreira | cf61fdb | 2012-06-23 21:24:30 -0300 | [diff] [blame] | 609 | out_be16(&usb->fhci->regs->usb_usbmr, |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 610 | usb->saved_msk); |
| 611 | } else { |
| 612 | fhci_dbg_isr(fhci, -1); |
| 613 | } |
| 614 | |
| 615 | usb_er &= ~USB_E_IDLE_MASK; |
| 616 | } |
| 617 | |
| 618 | spin_unlock_irqrestore(&fhci->lock, flags); |
| 619 | |
| 620 | return IRQ_HANDLED; |
| 621 | } |
| 622 | |
| 623 | |
| 624 | /* |
André Goddard Rosa | af901ca | 2009-11-14 13:09:05 -0200 | [diff] [blame] | 625 | * Process normal completions(error or success) and clean the schedule. |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 626 | * |
| 627 | * This is the main path for handing urbs back to drivers. The only other patth |
| 628 | * is process_del_list(),which unlinks URBs by scanning EDs,instead of scanning |
| 629 | * the (re-reversed) done list as this does. |
| 630 | */ |
| 631 | static void process_done_list(unsigned long data) |
| 632 | { |
| 633 | struct urb *urb; |
| 634 | struct ed *ed; |
| 635 | struct td *td; |
| 636 | struct urb_priv *urb_priv; |
| 637 | struct fhci_hcd *fhci = (struct fhci_hcd *)data; |
| 638 | |
| 639 | disable_irq(fhci->timer->irq); |
| 640 | disable_irq(fhci_to_hcd(fhci)->irq); |
| 641 | spin_lock(&fhci->lock); |
| 642 | |
| 643 | td = fhci_remove_td_from_done_list(fhci->hc_list); |
| 644 | while (td != NULL) { |
| 645 | urb = td->urb; |
| 646 | urb_priv = urb->hcpriv; |
| 647 | ed = td->ed; |
| 648 | |
| 649 | /* update URB's length and status from TD */ |
| 650 | fhci_done_td(urb, td); |
| 651 | urb_priv->tds_cnt++; |
| 652 | |
| 653 | /* |
| 654 | * if all this urb's TDs are done, call complete() |
| 655 | * Interrupt transfers are the onley special case: |
| 656 | * they are reissued,until "deleted" by usb_unlink_urb |
| 657 | * (real work done in a SOF intr, by process_del_list) |
| 658 | */ |
| 659 | if (urb_priv->tds_cnt == urb_priv->num_of_tds) { |
| 660 | fhci_urb_complete_free(fhci, urb); |
| 661 | } else if (urb_priv->state == URB_DEL && |
| 662 | ed->state == FHCI_ED_SKIP) { |
| 663 | fhci_del_ed_list(fhci, ed); |
| 664 | ed->state = FHCI_ED_OPER; |
| 665 | } else if (ed->state == FHCI_ED_HALTED) { |
| 666 | urb_priv->state = URB_DEL; |
| 667 | ed->state = FHCI_ED_URB_DEL; |
| 668 | fhci_del_ed_list(fhci, ed); |
| 669 | ed->state = FHCI_ED_OPER; |
| 670 | } |
| 671 | |
| 672 | td = fhci_remove_td_from_done_list(fhci->hc_list); |
| 673 | } |
| 674 | |
| 675 | spin_unlock(&fhci->lock); |
| 676 | enable_irq(fhci->timer->irq); |
| 677 | enable_irq(fhci_to_hcd(fhci)->irq); |
| 678 | } |
| 679 | |
Kees Cook | b13fecb | 2020-07-13 15:01:26 -0700 | [diff] [blame] | 680 | DECLARE_TASKLET_OLD(fhci_tasklet, process_done_list); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 681 | |
| 682 | /* transfer complted callback */ |
| 683 | u32 fhci_transfer_confirm_callback(struct fhci_hcd *fhci) |
| 684 | { |
| 685 | if (!fhci->process_done_task->state) |
| 686 | tasklet_schedule(fhci->process_done_task); |
| 687 | return 0; |
| 688 | } |
| 689 | |
| 690 | /* |
| 691 | * adds urb to the endpoint descriptor list |
| 692 | * arguments: |
| 693 | * fhci data structure for the Low level host controller |
| 694 | * ep USB Host endpoint data structure |
| 695 | * urb USB request block data structure |
| 696 | */ |
| 697 | void fhci_queue_urb(struct fhci_hcd *fhci, struct urb *urb) |
| 698 | { |
| 699 | struct ed *ed = urb->ep->hcpriv; |
| 700 | struct urb_priv *urb_priv = urb->hcpriv; |
| 701 | u32 data_len = urb->transfer_buffer_length; |
| 702 | int urb_state = 0; |
| 703 | int toggle = 0; |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 704 | u8 *data; |
| 705 | u16 cnt = 0; |
| 706 | |
| 707 | if (ed == NULL) { |
| 708 | ed = fhci_get_empty_ed(fhci); |
| 709 | ed->dev_addr = usb_pipedevice(urb->pipe); |
| 710 | ed->ep_addr = usb_pipeendpoint(urb->pipe); |
| 711 | switch (usb_pipetype(urb->pipe)) { |
| 712 | case PIPE_CONTROL: |
| 713 | ed->mode = FHCI_TF_CTRL; |
| 714 | break; |
| 715 | case PIPE_BULK: |
| 716 | ed->mode = FHCI_TF_BULK; |
| 717 | break; |
| 718 | case PIPE_INTERRUPT: |
| 719 | ed->mode = FHCI_TF_INTR; |
| 720 | break; |
| 721 | case PIPE_ISOCHRONOUS: |
| 722 | ed->mode = FHCI_TF_ISO; |
| 723 | break; |
| 724 | default: |
| 725 | break; |
| 726 | } |
| 727 | ed->speed = (urb->dev->speed == USB_SPEED_LOW) ? |
| 728 | FHCI_LOW_SPEED : FHCI_FULL_SPEED; |
Yan Zhu | 9bcb762 | 2019-04-18 23:25:21 +0800 | [diff] [blame] | 729 | ed->max_pkt_size = usb_endpoint_maxp(&urb->ep->desc); |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 730 | urb->ep->hcpriv = ed; |
| 731 | fhci_dbg(fhci, "new ep speed=%d max_pkt_size=%d\n", |
| 732 | ed->speed, ed->max_pkt_size); |
| 733 | } |
| 734 | |
| 735 | /* for ISO transfer calculate start frame index */ |
Alan Stern | f467ff4 | 2013-05-29 13:19:10 -0400 | [diff] [blame] | 736 | if (ed->mode == FHCI_TF_ISO) { |
| 737 | /* Ignore the possibility of underruns */ |
| 738 | urb->start_frame = ed->td_head ? ed->next_iso : |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 739 | get_frame_num(fhci); |
Alan Stern | f467ff4 | 2013-05-29 13:19:10 -0400 | [diff] [blame] | 740 | ed->next_iso = (urb->start_frame + urb->interval * |
| 741 | urb->number_of_packets) & 0x07ff; |
| 742 | } |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 743 | |
| 744 | /* |
| 745 | * OHCI handles the DATA toggle itself,we just use the USB |
| 746 | * toggle bits |
| 747 | */ |
| 748 | if (usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), |
| 749 | usb_pipeout(urb->pipe))) |
| 750 | toggle = USB_TD_TOGGLE_CARRY; |
| 751 | else { |
| 752 | toggle = USB_TD_TOGGLE_DATA0; |
| 753 | usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), |
| 754 | usb_pipeout(urb->pipe), 1); |
| 755 | } |
| 756 | |
| 757 | urb_priv->tds_cnt = 0; |
| 758 | urb_priv->ed = ed; |
| 759 | if (data_len > 0) |
| 760 | data = urb->transfer_buffer; |
| 761 | else |
| 762 | data = NULL; |
| 763 | |
| 764 | switch (ed->mode) { |
| 765 | case FHCI_TF_BULK: |
| 766 | if (urb->transfer_flags & URB_ZERO_PACKET && |
| 767 | urb->transfer_buffer_length > 0 && |
| 768 | ((urb->transfer_buffer_length % |
Yan Zhu | 9bcb762 | 2019-04-18 23:25:21 +0800 | [diff] [blame] | 769 | usb_endpoint_maxp(&urb->ep->desc)) == 0)) |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 770 | urb_state = US_BULK0; |
| 771 | while (data_len > 4096) { |
Lee Jones | a6a6d06 | 2020-07-06 14:33:40 +0100 | [diff] [blame] | 772 | fhci_td_fill(fhci, urb, urb_priv, ed, cnt, |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 773 | usb_pipeout(urb->pipe) ? FHCI_TA_OUT : |
| 774 | FHCI_TA_IN, |
| 775 | cnt ? USB_TD_TOGGLE_CARRY : |
| 776 | toggle, |
| 777 | data, 4096, 0, 0, true); |
| 778 | data += 4096; |
| 779 | data_len -= 4096; |
| 780 | cnt++; |
| 781 | } |
| 782 | |
Lee Jones | a6a6d06 | 2020-07-06 14:33:40 +0100 | [diff] [blame] | 783 | fhci_td_fill(fhci, urb, urb_priv, ed, cnt, |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 784 | usb_pipeout(urb->pipe) ? FHCI_TA_OUT : FHCI_TA_IN, |
| 785 | cnt ? USB_TD_TOGGLE_CARRY : toggle, |
| 786 | data, data_len, 0, 0, true); |
| 787 | cnt++; |
| 788 | |
| 789 | if (urb->transfer_flags & URB_ZERO_PACKET && |
| 790 | cnt < urb_priv->num_of_tds) { |
Lee Jones | a6a6d06 | 2020-07-06 14:33:40 +0100 | [diff] [blame] | 791 | fhci_td_fill(fhci, urb, urb_priv, ed, cnt, |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 792 | usb_pipeout(urb->pipe) ? FHCI_TA_OUT : |
| 793 | FHCI_TA_IN, |
| 794 | USB_TD_TOGGLE_CARRY, NULL, 0, 0, 0, true); |
| 795 | cnt++; |
| 796 | } |
| 797 | break; |
| 798 | case FHCI_TF_INTR: |
| 799 | urb->start_frame = get_frame_num(fhci) + 1; |
Lee Jones | a6a6d06 | 2020-07-06 14:33:40 +0100 | [diff] [blame] | 800 | fhci_td_fill(fhci, urb, urb_priv, ed, cnt++, |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 801 | usb_pipeout(urb->pipe) ? FHCI_TA_OUT : FHCI_TA_IN, |
| 802 | USB_TD_TOGGLE_DATA0, data, data_len, |
| 803 | urb->interval, urb->start_frame, true); |
| 804 | break; |
| 805 | case FHCI_TF_CTRL: |
| 806 | ed->dev_addr = usb_pipedevice(urb->pipe); |
Yan Zhu | 9bcb762 | 2019-04-18 23:25:21 +0800 | [diff] [blame] | 807 | ed->max_pkt_size = usb_endpoint_maxp(&urb->ep->desc); |
| 808 | |
Jerry Huang | 273d235 | 2011-10-18 13:09:48 +0800 | [diff] [blame] | 809 | /* setup stage */ |
Lee Jones | a6a6d06 | 2020-07-06 14:33:40 +0100 | [diff] [blame] | 810 | fhci_td_fill(fhci, urb, urb_priv, ed, cnt++, FHCI_TA_SETUP, |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 811 | USB_TD_TOGGLE_DATA0, urb->setup_packet, 8, 0, 0, true); |
| 812 | |
Jerry Huang | 273d235 | 2011-10-18 13:09:48 +0800 | [diff] [blame] | 813 | /* data stage */ |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 814 | if (data_len > 0) { |
Lee Jones | a6a6d06 | 2020-07-06 14:33:40 +0100 | [diff] [blame] | 815 | fhci_td_fill(fhci, urb, urb_priv, ed, cnt++, |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 816 | usb_pipeout(urb->pipe) ? FHCI_TA_OUT : |
| 817 | FHCI_TA_IN, |
| 818 | USB_TD_TOGGLE_DATA1, data, data_len, 0, 0, |
| 819 | true); |
| 820 | } |
Jerry Huang | 273d235 | 2011-10-18 13:09:48 +0800 | [diff] [blame] | 821 | |
| 822 | /* status stage */ |
| 823 | if (data_len > 0) |
Lee Jones | a6a6d06 | 2020-07-06 14:33:40 +0100 | [diff] [blame] | 824 | fhci_td_fill(fhci, urb, urb_priv, ed, cnt++, |
Jerry Huang | 273d235 | 2011-10-18 13:09:48 +0800 | [diff] [blame] | 825 | (usb_pipeout(urb->pipe) ? FHCI_TA_IN : |
| 826 | FHCI_TA_OUT), |
| 827 | USB_TD_TOGGLE_DATA1, data, 0, 0, 0, true); |
| 828 | else |
Lee Jones | a6a6d06 | 2020-07-06 14:33:40 +0100 | [diff] [blame] | 829 | fhci_td_fill(fhci, urb, urb_priv, ed, cnt++, |
Jerry Huang | 273d235 | 2011-10-18 13:09:48 +0800 | [diff] [blame] | 830 | FHCI_TA_IN, |
| 831 | USB_TD_TOGGLE_DATA1, data, 0, 0, 0, true); |
| 832 | |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 833 | urb_state = US_CTRL_SETUP; |
| 834 | break; |
| 835 | case FHCI_TF_ISO: |
| 836 | for (cnt = 0; cnt < urb->number_of_packets; cnt++) { |
| 837 | u16 frame = urb->start_frame; |
| 838 | |
| 839 | /* |
| 840 | * FIXME scheduling should handle frame counter |
| 841 | * roll-around ... exotic case (and OHCI has |
| 842 | * a 2^16 iso range, vs other HCs max of 2^10) |
| 843 | */ |
| 844 | frame += cnt * urb->interval; |
| 845 | frame &= 0x07ff; |
Lee Jones | a6a6d06 | 2020-07-06 14:33:40 +0100 | [diff] [blame] | 846 | fhci_td_fill(fhci, urb, urb_priv, ed, cnt, |
Anton Vorontsov | 236dd4d | 2009-01-10 05:03:21 +0300 | [diff] [blame] | 847 | usb_pipeout(urb->pipe) ? FHCI_TA_OUT : |
| 848 | FHCI_TA_IN, |
| 849 | USB_TD_TOGGLE_DATA0, |
| 850 | data + urb->iso_frame_desc[cnt].offset, |
| 851 | urb->iso_frame_desc[cnt].length, |
| 852 | urb->interval, frame, true); |
| 853 | } |
| 854 | break; |
| 855 | default: |
| 856 | break; |
| 857 | } |
| 858 | |
| 859 | /* |
| 860 | * set the state of URB |
| 861 | * control pipe:3 states -- setup,data,status |
| 862 | * interrupt and bulk pipe:1 state -- data |
| 863 | */ |
| 864 | urb->pipe &= ~0x1f; |
| 865 | urb->pipe |= urb_state & 0x1f; |
| 866 | |
| 867 | urb_priv->state = URB_INPROGRESS; |
| 868 | |
| 869 | if (!ed->td_head) { |
| 870 | ed->state = FHCI_ED_OPER; |
| 871 | switch (ed->mode) { |
| 872 | case FHCI_TF_CTRL: |
| 873 | list_add(&ed->node, &fhci->hc_list->ctrl_list); |
| 874 | break; |
| 875 | case FHCI_TF_BULK: |
| 876 | list_add(&ed->node, &fhci->hc_list->bulk_list); |
| 877 | break; |
| 878 | case FHCI_TF_INTR: |
| 879 | list_add(&ed->node, &fhci->hc_list->intr_list); |
| 880 | break; |
| 881 | case FHCI_TF_ISO: |
| 882 | list_add(&ed->node, &fhci->hc_list->iso_list); |
| 883 | break; |
| 884 | default: |
| 885 | break; |
| 886 | } |
| 887 | } |
| 888 | |
| 889 | fhci_add_tds_to_ed(ed, urb_priv->tds, urb_priv->num_of_tds); |
| 890 | fhci->active_urbs++; |
| 891 | } |