Felipe Balbi | 550a737 | 2008-07-24 12:27:36 +0300 | [diff] [blame] | 1 | /* |
| 2 | * MUSB OTG driver debug support |
| 3 | * |
| 4 | * Copyright 2005 Mentor Graphics Corporation |
| 5 | * Copyright (C) 2005-2006 by Texas Instruments |
| 6 | * Copyright (C) 2006-2007 Nokia Corporation |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * version 2 as published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 20 | * 02110-1301 USA |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 25 | * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 26 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 27 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 28 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 29 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 31 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 32 | * |
| 33 | */ |
| 34 | |
| 35 | #include <linux/kernel.h> |
| 36 | #include <linux/proc_fs.h> |
| 37 | #include <linux/seq_file.h> |
| 38 | #include <linux/uaccess.h> /* FIXME remove procfs writes */ |
| 39 | #include <asm/arch/hardware.h> |
| 40 | |
| 41 | #include "musb_core.h" |
| 42 | |
| 43 | #include "davinci.h" |
| 44 | |
| 45 | #ifdef CONFIG_USB_MUSB_HDRC_HCD |
| 46 | |
| 47 | static int dump_qh(struct musb_qh *qh, char *buf, unsigned max) |
| 48 | { |
| 49 | int count; |
| 50 | int tmp; |
| 51 | struct usb_host_endpoint *hep = qh->hep; |
| 52 | struct urb *urb; |
| 53 | |
| 54 | count = snprintf(buf, max, " qh %p dev%d ep%d%s max%d\n", |
| 55 | qh, qh->dev->devnum, qh->epnum, |
| 56 | ({ char *s; switch (qh->type) { |
| 57 | case USB_ENDPOINT_XFER_BULK: |
| 58 | s = "-bulk"; break; |
| 59 | case USB_ENDPOINT_XFER_INT: |
| 60 | s = "-int"; break; |
| 61 | case USB_ENDPOINT_XFER_CONTROL: |
| 62 | s = ""; break; |
| 63 | default: |
| 64 | s = "iso"; break; |
| 65 | }; s; }), |
| 66 | qh->maxpacket); |
| 67 | if (count <= 0) |
| 68 | return 0; |
| 69 | buf += count; |
| 70 | max -= count; |
| 71 | |
| 72 | list_for_each_entry(urb, &hep->urb_list, urb_list) { |
| 73 | tmp = snprintf(buf, max, "\t%s urb %p %d/%d\n", |
| 74 | usb_pipein(urb->pipe) ? "in" : "out", |
| 75 | urb, urb->actual_length, |
| 76 | urb->transfer_buffer_length); |
| 77 | if (tmp <= 0) |
| 78 | break; |
| 79 | tmp = min(tmp, (int)max); |
| 80 | count += tmp; |
| 81 | buf += tmp; |
| 82 | max -= tmp; |
| 83 | } |
| 84 | return count; |
| 85 | } |
| 86 | |
| 87 | static int |
| 88 | dump_queue(struct list_head *q, char *buf, unsigned max) |
| 89 | { |
| 90 | int count = 0; |
| 91 | struct musb_qh *qh; |
| 92 | |
| 93 | list_for_each_entry(qh, q, ring) { |
| 94 | int tmp; |
| 95 | |
| 96 | tmp = dump_qh(qh, buf, max); |
| 97 | if (tmp <= 0) |
| 98 | break; |
| 99 | tmp = min(tmp, (int)max); |
| 100 | count += tmp; |
| 101 | buf += tmp; |
| 102 | max -= tmp; |
| 103 | } |
| 104 | return count; |
| 105 | } |
| 106 | |
| 107 | #endif /* HCD */ |
| 108 | |
| 109 | #ifdef CONFIG_USB_GADGET_MUSB_HDRC |
| 110 | static int dump_ep(struct musb_ep *ep, char *buffer, unsigned max) |
| 111 | { |
| 112 | char *buf = buffer; |
| 113 | int code = 0; |
| 114 | void __iomem *regs = ep->hw_ep->regs; |
| 115 | char *mode = "1buf"; |
| 116 | |
| 117 | if (ep->is_in) { |
| 118 | if (ep->hw_ep->tx_double_buffered) |
| 119 | mode = "2buf"; |
| 120 | } else { |
| 121 | if (ep->hw_ep->rx_double_buffered) |
| 122 | mode = "2buf"; |
| 123 | } |
| 124 | |
| 125 | do { |
| 126 | struct usb_request *req; |
| 127 | |
| 128 | code = snprintf(buf, max, |
| 129 | "\n%s (hw%d): %s%s, csr %04x maxp %04x\n", |
| 130 | ep->name, ep->current_epnum, |
| 131 | mode, ep->dma ? " dma" : "", |
| 132 | musb_readw(regs, |
| 133 | (ep->is_in || !ep->current_epnum) |
| 134 | ? MUSB_TXCSR |
| 135 | : MUSB_RXCSR), |
| 136 | musb_readw(regs, ep->is_in |
| 137 | ? MUSB_TXMAXP |
| 138 | : MUSB_RXMAXP) |
| 139 | ); |
| 140 | if (code <= 0) |
| 141 | break; |
| 142 | code = min(code, (int) max); |
| 143 | buf += code; |
| 144 | max -= code; |
| 145 | |
| 146 | if (is_cppi_enabled() && ep->current_epnum) { |
| 147 | unsigned cppi = ep->current_epnum - 1; |
| 148 | void __iomem *base = ep->musb->ctrl_base; |
| 149 | unsigned off1 = cppi << 2; |
| 150 | void __iomem *ram = base; |
| 151 | char tmp[16]; |
| 152 | |
| 153 | if (ep->is_in) { |
| 154 | ram += DAVINCI_TXCPPI_STATERAM_OFFSET(cppi); |
| 155 | tmp[0] = 0; |
| 156 | } else { |
| 157 | ram += DAVINCI_RXCPPI_STATERAM_OFFSET(cppi); |
| 158 | snprintf(tmp, sizeof tmp, "%d left, ", |
| 159 | musb_readl(base, |
| 160 | DAVINCI_RXCPPI_BUFCNT0_REG + off1)); |
| 161 | } |
| 162 | |
| 163 | code = snprintf(buf, max, "%cX DMA%d: %s" |
| 164 | "%08x %08x, %08x %08x; " |
| 165 | "%08x %08x %08x .. %08x\n", |
| 166 | ep->is_in ? 'T' : 'R', |
| 167 | ep->current_epnum - 1, tmp, |
| 168 | musb_readl(ram, 0 * 4), |
| 169 | musb_readl(ram, 1 * 4), |
| 170 | musb_readl(ram, 2 * 4), |
| 171 | musb_readl(ram, 3 * 4), |
| 172 | musb_readl(ram, 4 * 4), |
| 173 | musb_readl(ram, 5 * 4), |
| 174 | musb_readl(ram, 6 * 4), |
| 175 | musb_readl(ram, 7 * 4)); |
| 176 | if (code <= 0) |
| 177 | break; |
| 178 | code = min(code, (int) max); |
| 179 | buf += code; |
| 180 | max -= code; |
| 181 | } |
| 182 | |
| 183 | if (list_empty(&ep->req_list)) { |
| 184 | code = snprintf(buf, max, "\t(queue empty)\n"); |
| 185 | if (code <= 0) |
| 186 | break; |
| 187 | code = min(code, (int) max); |
| 188 | buf += code; |
| 189 | max -= code; |
| 190 | break; |
| 191 | } |
| 192 | list_for_each_entry(req, &ep->req_list, list) { |
| 193 | code = snprintf(buf, max, "\treq %p, %s%s%d/%d\n", |
| 194 | req, |
| 195 | req->zero ? "zero, " : "", |
| 196 | req->short_not_ok ? "!short, " : "", |
| 197 | req->actual, req->length); |
| 198 | if (code <= 0) |
| 199 | break; |
| 200 | code = min(code, (int) max); |
| 201 | buf += code; |
| 202 | max -= code; |
| 203 | } |
| 204 | } while (0); |
| 205 | return buf - buffer; |
| 206 | } |
| 207 | #endif |
| 208 | |
| 209 | static int |
| 210 | dump_end_info(struct musb *musb, u8 epnum, char *aBuffer, unsigned max) |
| 211 | { |
| 212 | int code = 0; |
| 213 | char *buf = aBuffer; |
| 214 | struct musb_hw_ep *hw_ep = &musb->endpoints[epnum]; |
| 215 | |
| 216 | do { |
| 217 | musb_ep_select(musb->mregs, epnum); |
| 218 | #ifdef CONFIG_USB_MUSB_HDRC_HCD |
| 219 | if (is_host_active(musb)) { |
| 220 | int dump_rx, dump_tx; |
| 221 | void __iomem *regs = hw_ep->regs; |
| 222 | |
| 223 | /* TEMPORARY (!) until we have a real periodic |
| 224 | * schedule tree ... |
| 225 | */ |
| 226 | if (!epnum) { |
| 227 | /* control is shared, uses RX queue |
| 228 | * but (mostly) shadowed tx registers |
| 229 | */ |
| 230 | dump_tx = !list_empty(&musb->control); |
| 231 | dump_rx = 0; |
| 232 | } else if (hw_ep == musb->bulk_ep) { |
| 233 | dump_tx = !list_empty(&musb->out_bulk); |
| 234 | dump_rx = !list_empty(&musb->in_bulk); |
| 235 | } else if (musb->periodic[epnum]) { |
| 236 | struct usb_host_endpoint *hep; |
| 237 | |
| 238 | hep = musb->periodic[epnum]->hep; |
| 239 | dump_rx = hep->desc.bEndpointAddress |
| 240 | & USB_ENDPOINT_DIR_MASK; |
| 241 | dump_tx = !dump_rx; |
| 242 | } else |
| 243 | break; |
| 244 | /* END TEMPORARY */ |
| 245 | |
| 246 | |
| 247 | if (dump_rx) { |
| 248 | code = snprintf(buf, max, |
| 249 | "\nRX%d: %s rxcsr %04x interval %02x " |
| 250 | "max %04x type %02x; " |
| 251 | "dev %d hub %d port %d" |
| 252 | "\n", |
| 253 | epnum, |
| 254 | hw_ep->rx_double_buffered |
| 255 | ? "2buf" : "1buf", |
| 256 | musb_readw(regs, MUSB_RXCSR), |
| 257 | musb_readb(regs, MUSB_RXINTERVAL), |
| 258 | musb_readw(regs, MUSB_RXMAXP), |
| 259 | musb_readb(regs, MUSB_RXTYPE), |
| 260 | /* FIXME: assumes multipoint */ |
| 261 | musb_readb(musb->mregs, |
| 262 | MUSB_BUSCTL_OFFSET(epnum, |
| 263 | MUSB_RXFUNCADDR)), |
| 264 | musb_readb(musb->mregs, |
| 265 | MUSB_BUSCTL_OFFSET(epnum, |
| 266 | MUSB_RXHUBADDR)), |
| 267 | musb_readb(musb->mregs, |
| 268 | MUSB_BUSCTL_OFFSET(epnum, |
| 269 | MUSB_RXHUBPORT)) |
| 270 | ); |
| 271 | if (code <= 0) |
| 272 | break; |
| 273 | code = min(code, (int) max); |
| 274 | buf += code; |
| 275 | max -= code; |
| 276 | |
| 277 | if (is_cppi_enabled() |
| 278 | && epnum |
| 279 | && hw_ep->rx_channel) { |
| 280 | unsigned cppi = epnum - 1; |
| 281 | unsigned off1 = cppi << 2; |
| 282 | void __iomem *base; |
| 283 | void __iomem *ram; |
| 284 | char tmp[16]; |
| 285 | |
| 286 | base = musb->ctrl_base; |
| 287 | ram = DAVINCI_RXCPPI_STATERAM_OFFSET( |
| 288 | cppi) + base; |
| 289 | snprintf(tmp, sizeof tmp, "%d left, ", |
| 290 | musb_readl(base, |
| 291 | DAVINCI_RXCPPI_BUFCNT0_REG |
| 292 | + off1)); |
| 293 | |
| 294 | code = snprintf(buf, max, |
| 295 | " rx dma%d: %s" |
| 296 | "%08x %08x, %08x %08x; " |
| 297 | "%08x %08x %08x .. %08x\n", |
| 298 | cppi, tmp, |
| 299 | musb_readl(ram, 0 * 4), |
| 300 | musb_readl(ram, 1 * 4), |
| 301 | musb_readl(ram, 2 * 4), |
| 302 | musb_readl(ram, 3 * 4), |
| 303 | musb_readl(ram, 4 * 4), |
| 304 | musb_readl(ram, 5 * 4), |
| 305 | musb_readl(ram, 6 * 4), |
| 306 | musb_readl(ram, 7 * 4)); |
| 307 | if (code <= 0) |
| 308 | break; |
| 309 | code = min(code, (int) max); |
| 310 | buf += code; |
| 311 | max -= code; |
| 312 | } |
| 313 | |
| 314 | if (hw_ep == musb->bulk_ep |
| 315 | && !list_empty( |
| 316 | &musb->in_bulk)) { |
| 317 | code = dump_queue(&musb->in_bulk, |
| 318 | buf, max); |
| 319 | if (code <= 0) |
| 320 | break; |
| 321 | code = min(code, (int) max); |
| 322 | buf += code; |
| 323 | max -= code; |
| 324 | } else if (musb->periodic[epnum]) { |
| 325 | code = dump_qh(musb->periodic[epnum], |
| 326 | buf, max); |
| 327 | if (code <= 0) |
| 328 | break; |
| 329 | code = min(code, (int) max); |
| 330 | buf += code; |
| 331 | max -= code; |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | if (dump_tx) { |
| 336 | code = snprintf(buf, max, |
| 337 | "\nTX%d: %s txcsr %04x interval %02x " |
| 338 | "max %04x type %02x; " |
| 339 | "dev %d hub %d port %d" |
| 340 | "\n", |
| 341 | epnum, |
| 342 | hw_ep->tx_double_buffered |
| 343 | ? "2buf" : "1buf", |
| 344 | musb_readw(regs, MUSB_TXCSR), |
| 345 | musb_readb(regs, MUSB_TXINTERVAL), |
| 346 | musb_readw(regs, MUSB_TXMAXP), |
| 347 | musb_readb(regs, MUSB_TXTYPE), |
| 348 | /* FIXME: assumes multipoint */ |
| 349 | musb_readb(musb->mregs, |
| 350 | MUSB_BUSCTL_OFFSET(epnum, |
| 351 | MUSB_TXFUNCADDR)), |
| 352 | musb_readb(musb->mregs, |
| 353 | MUSB_BUSCTL_OFFSET(epnum, |
| 354 | MUSB_TXHUBADDR)), |
| 355 | musb_readb(musb->mregs, |
| 356 | MUSB_BUSCTL_OFFSET(epnum, |
| 357 | MUSB_TXHUBPORT)) |
| 358 | ); |
| 359 | if (code <= 0) |
| 360 | break; |
| 361 | code = min(code, (int) max); |
| 362 | buf += code; |
| 363 | max -= code; |
| 364 | |
| 365 | if (is_cppi_enabled() |
| 366 | && epnum |
| 367 | && hw_ep->tx_channel) { |
| 368 | unsigned cppi = epnum - 1; |
| 369 | void __iomem *base; |
| 370 | void __iomem *ram; |
| 371 | |
| 372 | base = musb->ctrl_base; |
| 373 | ram = DAVINCI_RXCPPI_STATERAM_OFFSET( |
| 374 | cppi) + base; |
| 375 | code = snprintf(buf, max, |
| 376 | " tx dma%d: " |
| 377 | "%08x %08x, %08x %08x; " |
| 378 | "%08x %08x %08x .. %08x\n", |
| 379 | cppi, |
| 380 | musb_readl(ram, 0 * 4), |
| 381 | musb_readl(ram, 1 * 4), |
| 382 | musb_readl(ram, 2 * 4), |
| 383 | musb_readl(ram, 3 * 4), |
| 384 | musb_readl(ram, 4 * 4), |
| 385 | musb_readl(ram, 5 * 4), |
| 386 | musb_readl(ram, 6 * 4), |
| 387 | musb_readl(ram, 7 * 4)); |
| 388 | if (code <= 0) |
| 389 | break; |
| 390 | code = min(code, (int) max); |
| 391 | buf += code; |
| 392 | max -= code; |
| 393 | } |
| 394 | |
| 395 | if (hw_ep == musb->control_ep |
| 396 | && !list_empty( |
| 397 | &musb->control)) { |
| 398 | code = dump_queue(&musb->control, |
| 399 | buf, max); |
| 400 | if (code <= 0) |
| 401 | break; |
| 402 | code = min(code, (int) max); |
| 403 | buf += code; |
| 404 | max -= code; |
| 405 | } else if (hw_ep == musb->bulk_ep |
| 406 | && !list_empty( |
| 407 | &musb->out_bulk)) { |
| 408 | code = dump_queue(&musb->out_bulk, |
| 409 | buf, max); |
| 410 | if (code <= 0) |
| 411 | break; |
| 412 | code = min(code, (int) max); |
| 413 | buf += code; |
| 414 | max -= code; |
| 415 | } else if (musb->periodic[epnum]) { |
| 416 | code = dump_qh(musb->periodic[epnum], |
| 417 | buf, max); |
| 418 | if (code <= 0) |
| 419 | break; |
| 420 | code = min(code, (int) max); |
| 421 | buf += code; |
| 422 | max -= code; |
| 423 | } |
| 424 | } |
| 425 | } |
| 426 | #endif |
| 427 | #ifdef CONFIG_USB_GADGET_MUSB_HDRC |
| 428 | if (is_peripheral_active(musb)) { |
| 429 | code = 0; |
| 430 | |
| 431 | if (hw_ep->ep_in.desc || !epnum) { |
| 432 | code = dump_ep(&hw_ep->ep_in, buf, max); |
| 433 | if (code <= 0) |
| 434 | break; |
| 435 | code = min(code, (int) max); |
| 436 | buf += code; |
| 437 | max -= code; |
| 438 | } |
| 439 | if (hw_ep->ep_out.desc) { |
| 440 | code = dump_ep(&hw_ep->ep_out, buf, max); |
| 441 | if (code <= 0) |
| 442 | break; |
| 443 | code = min(code, (int) max); |
| 444 | buf += code; |
| 445 | max -= code; |
| 446 | } |
| 447 | } |
| 448 | #endif |
| 449 | } while (0); |
| 450 | |
| 451 | return buf - aBuffer; |
| 452 | } |
| 453 | |
| 454 | /* Dump the current status and compile options. |
| 455 | * @param musb the device driver instance |
| 456 | * @param buffer where to dump the status; it must be big enough to hold the |
| 457 | * result otherwise "BAD THINGS HAPPENS(TM)". |
| 458 | */ |
| 459 | static int dump_header_stats(struct musb *musb, char *buffer) |
| 460 | { |
| 461 | int code, count = 0; |
| 462 | const void __iomem *mbase = musb->mregs; |
| 463 | |
| 464 | *buffer = 0; |
| 465 | count = sprintf(buffer, "Status: %sHDRC, Mode=%s " |
| 466 | "(Power=%02x, DevCtl=%02x)\n", |
| 467 | (musb->is_multipoint ? "M" : ""), MUSB_MODE(musb), |
| 468 | musb_readb(mbase, MUSB_POWER), |
| 469 | musb_readb(mbase, MUSB_DEVCTL)); |
| 470 | if (count <= 0) |
| 471 | return 0; |
| 472 | buffer += count; |
| 473 | |
| 474 | code = sprintf(buffer, "OTG state: %s; %sactive\n", |
| 475 | otg_state_string(musb), |
| 476 | musb->is_active ? "" : "in"); |
| 477 | if (code <= 0) |
| 478 | goto done; |
| 479 | buffer += code; |
| 480 | count += code; |
| 481 | |
| 482 | code = sprintf(buffer, |
| 483 | "Options: " |
| 484 | #ifdef CONFIG_MUSB_PIO_ONLY |
| 485 | "pio" |
| 486 | #elif defined(CONFIG_USB_TI_CPPI_DMA) |
| 487 | "cppi-dma" |
| 488 | #elif defined(CONFIG_USB_INVENTRA_DMA) |
| 489 | "musb-dma" |
| 490 | #elif defined(CONFIG_USB_TUSB_OMAP_DMA) |
| 491 | "tusb-omap-dma" |
| 492 | #else |
| 493 | "?dma?" |
| 494 | #endif |
| 495 | ", " |
| 496 | #ifdef CONFIG_USB_MUSB_OTG |
| 497 | "otg (peripheral+host)" |
| 498 | #elif defined(CONFIG_USB_GADGET_MUSB_HDRC) |
| 499 | "peripheral" |
| 500 | #elif defined(CONFIG_USB_MUSB_HDRC_HCD) |
| 501 | "host" |
| 502 | #endif |
| 503 | ", debug=%d [eps=%d]\n", |
| 504 | debug, |
| 505 | musb->nr_endpoints); |
| 506 | if (code <= 0) |
| 507 | goto done; |
| 508 | count += code; |
| 509 | buffer += code; |
| 510 | |
| 511 | #ifdef CONFIG_USB_GADGET_MUSB_HDRC |
| 512 | code = sprintf(buffer, "Peripheral address: %02x\n", |
| 513 | musb_readb(musb->ctrl_base, MUSB_FADDR)); |
| 514 | if (code <= 0) |
| 515 | goto done; |
| 516 | buffer += code; |
| 517 | count += code; |
| 518 | #endif |
| 519 | |
| 520 | #ifdef CONFIG_USB_MUSB_HDRC_HCD |
| 521 | code = sprintf(buffer, "Root port status: %08x\n", |
| 522 | musb->port1_status); |
| 523 | if (code <= 0) |
| 524 | goto done; |
| 525 | buffer += code; |
| 526 | count += code; |
| 527 | #endif |
| 528 | |
| 529 | #ifdef CONFIG_ARCH_DAVINCI |
| 530 | code = sprintf(buffer, |
| 531 | "DaVinci: ctrl=%02x stat=%1x phy=%03x\n" |
| 532 | "\trndis=%05x auto=%04x intsrc=%08x intmsk=%08x" |
| 533 | "\n", |
| 534 | musb_readl(musb->ctrl_base, DAVINCI_USB_CTRL_REG), |
| 535 | musb_readl(musb->ctrl_base, DAVINCI_USB_STAT_REG), |
| 536 | __raw_readl((void __force __iomem *) |
| 537 | IO_ADDRESS(USBPHY_CTL_PADDR)), |
| 538 | musb_readl(musb->ctrl_base, DAVINCI_RNDIS_REG), |
| 539 | musb_readl(musb->ctrl_base, DAVINCI_AUTOREQ_REG), |
| 540 | musb_readl(musb->ctrl_base, |
| 541 | DAVINCI_USB_INT_SOURCE_REG), |
| 542 | musb_readl(musb->ctrl_base, |
| 543 | DAVINCI_USB_INT_MASK_REG)); |
| 544 | if (code <= 0) |
| 545 | goto done; |
| 546 | count += code; |
| 547 | buffer += code; |
| 548 | #endif /* DAVINCI */ |
| 549 | |
| 550 | #ifdef CONFIG_USB_TUSB6010 |
| 551 | code = sprintf(buffer, |
| 552 | "TUSB6010: devconf %08x, phy enable %08x drive %08x" |
| 553 | "\n\totg %03x timer %08x" |
| 554 | "\n\tprcm conf %08x mgmt %08x; int src %08x mask %08x" |
| 555 | "\n", |
| 556 | musb_readl(musb->ctrl_base, TUSB_DEV_CONF), |
| 557 | musb_readl(musb->ctrl_base, TUSB_PHY_OTG_CTRL_ENABLE), |
| 558 | musb_readl(musb->ctrl_base, TUSB_PHY_OTG_CTRL), |
| 559 | musb_readl(musb->ctrl_base, TUSB_DEV_OTG_STAT), |
| 560 | musb_readl(musb->ctrl_base, TUSB_DEV_OTG_TIMER), |
| 561 | musb_readl(musb->ctrl_base, TUSB_PRCM_CONF), |
| 562 | musb_readl(musb->ctrl_base, TUSB_PRCM_MNGMT), |
| 563 | musb_readl(musb->ctrl_base, TUSB_INT_SRC), |
| 564 | musb_readl(musb->ctrl_base, TUSB_INT_MASK)); |
| 565 | if (code <= 0) |
| 566 | goto done; |
| 567 | count += code; |
| 568 | buffer += code; |
| 569 | #endif /* DAVINCI */ |
| 570 | |
| 571 | if (is_cppi_enabled() && musb->dma_controller) { |
| 572 | code = sprintf(buffer, |
| 573 | "CPPI: txcr=%d txsrc=%01x txena=%01x; " |
| 574 | "rxcr=%d rxsrc=%01x rxena=%01x " |
| 575 | "\n", |
| 576 | musb_readl(musb->ctrl_base, |
| 577 | DAVINCI_TXCPPI_CTRL_REG), |
| 578 | musb_readl(musb->ctrl_base, |
| 579 | DAVINCI_TXCPPI_RAW_REG), |
| 580 | musb_readl(musb->ctrl_base, |
| 581 | DAVINCI_TXCPPI_INTENAB_REG), |
| 582 | musb_readl(musb->ctrl_base, |
| 583 | DAVINCI_RXCPPI_CTRL_REG), |
| 584 | musb_readl(musb->ctrl_base, |
| 585 | DAVINCI_RXCPPI_RAW_REG), |
| 586 | musb_readl(musb->ctrl_base, |
| 587 | DAVINCI_RXCPPI_INTENAB_REG)); |
| 588 | if (code <= 0) |
| 589 | goto done; |
| 590 | count += code; |
| 591 | buffer += code; |
| 592 | } |
| 593 | |
| 594 | #ifdef CONFIG_USB_GADGET_MUSB_HDRC |
| 595 | if (is_peripheral_enabled(musb)) { |
| 596 | code = sprintf(buffer, "Gadget driver: %s\n", |
| 597 | musb->gadget_driver |
| 598 | ? musb->gadget_driver->driver.name |
| 599 | : "(none)"); |
| 600 | if (code <= 0) |
| 601 | goto done; |
| 602 | count += code; |
| 603 | buffer += code; |
| 604 | } |
| 605 | #endif |
| 606 | |
| 607 | done: |
| 608 | return count; |
| 609 | } |
| 610 | |
| 611 | /* Write to ProcFS |
| 612 | * |
| 613 | * C soft-connect |
| 614 | * c soft-disconnect |
| 615 | * I enable HS |
| 616 | * i disable HS |
| 617 | * s stop session |
| 618 | * F force session (OTG-unfriendly) |
| 619 | * E rElinquish bus (OTG) |
| 620 | * H request host mode |
| 621 | * h cancel host request |
| 622 | * T start sending TEST_PACKET |
| 623 | * D<num> set/query the debug level |
| 624 | */ |
| 625 | static int musb_proc_write(struct file *file, const char __user *buffer, |
| 626 | unsigned long count, void *data) |
| 627 | { |
| 628 | char cmd; |
| 629 | u8 reg; |
| 630 | struct musb *musb = (struct musb *)data; |
| 631 | void __iomem *mbase = musb->mregs; |
| 632 | |
| 633 | /* MOD_INC_USE_COUNT; */ |
| 634 | |
| 635 | if (unlikely(copy_from_user(&cmd, buffer, 1))) |
| 636 | return -EFAULT; |
| 637 | |
| 638 | switch (cmd) { |
| 639 | case 'C': |
| 640 | if (mbase) { |
| 641 | reg = musb_readb(mbase, MUSB_POWER) |
| 642 | | MUSB_POWER_SOFTCONN; |
| 643 | musb_writeb(mbase, MUSB_POWER, reg); |
| 644 | } |
| 645 | break; |
| 646 | |
| 647 | case 'c': |
| 648 | if (mbase) { |
| 649 | reg = musb_readb(mbase, MUSB_POWER) |
| 650 | & ~MUSB_POWER_SOFTCONN; |
| 651 | musb_writeb(mbase, MUSB_POWER, reg); |
| 652 | } |
| 653 | break; |
| 654 | |
| 655 | case 'I': |
| 656 | if (mbase) { |
| 657 | reg = musb_readb(mbase, MUSB_POWER) |
| 658 | | MUSB_POWER_HSENAB; |
| 659 | musb_writeb(mbase, MUSB_POWER, reg); |
| 660 | } |
| 661 | break; |
| 662 | |
| 663 | case 'i': |
| 664 | if (mbase) { |
| 665 | reg = musb_readb(mbase, MUSB_POWER) |
| 666 | & ~MUSB_POWER_HSENAB; |
| 667 | musb_writeb(mbase, MUSB_POWER, reg); |
| 668 | } |
| 669 | break; |
| 670 | |
| 671 | case 'F': |
| 672 | reg = musb_readb(mbase, MUSB_DEVCTL); |
| 673 | reg |= MUSB_DEVCTL_SESSION; |
| 674 | musb_writeb(mbase, MUSB_DEVCTL, reg); |
| 675 | break; |
| 676 | |
| 677 | case 'H': |
| 678 | if (mbase) { |
| 679 | reg = musb_readb(mbase, MUSB_DEVCTL); |
| 680 | reg |= MUSB_DEVCTL_HR; |
| 681 | musb_writeb(mbase, MUSB_DEVCTL, reg); |
| 682 | /* MUSB_HST_MODE( ((struct musb*)data) ); */ |
| 683 | /* WARNING("Host Mode\n"); */ |
| 684 | } |
| 685 | break; |
| 686 | |
| 687 | case 'h': |
| 688 | if (mbase) { |
| 689 | reg = musb_readb(mbase, MUSB_DEVCTL); |
| 690 | reg &= ~MUSB_DEVCTL_HR; |
| 691 | musb_writeb(mbase, MUSB_DEVCTL, reg); |
| 692 | } |
| 693 | break; |
| 694 | |
| 695 | case 'T': |
| 696 | if (mbase) { |
| 697 | musb_load_testpacket(musb); |
| 698 | musb_writeb(mbase, MUSB_TESTMODE, |
| 699 | MUSB_TEST_PACKET); |
| 700 | } |
| 701 | break; |
| 702 | |
| 703 | #if (MUSB_DEBUG > 0) |
| 704 | /* set/read debug level */ |
| 705 | case 'D':{ |
| 706 | if (count > 1) { |
| 707 | char digits[8], *p = digits; |
| 708 | int i = 0, level = 0, sign = 1; |
| 709 | int len = min(count - 1, (unsigned long)8); |
| 710 | |
| 711 | if (copy_from_user(&digits, &buffer[1], len)) |
| 712 | return -EFAULT; |
| 713 | |
| 714 | /* optional sign */ |
| 715 | if (*p == '-') { |
| 716 | len -= 1; |
| 717 | sign = -sign; |
| 718 | p++; |
| 719 | } |
| 720 | |
| 721 | /* read it */ |
| 722 | while (i++ < len && *p > '0' && *p < '9') { |
| 723 | level = level * 10 + (*p - '0'); |
| 724 | p++; |
| 725 | } |
| 726 | |
| 727 | level *= sign; |
| 728 | DBG(1, "debug level %d\n", level); |
| 729 | debug = level; |
| 730 | } |
| 731 | } |
| 732 | break; |
| 733 | |
| 734 | |
| 735 | case '?': |
| 736 | INFO("?: you are seeing it\n"); |
| 737 | INFO("C/c: soft connect enable/disable\n"); |
| 738 | INFO("I/i: hispeed enable/disable\n"); |
| 739 | INFO("F: force session start\n"); |
| 740 | INFO("H: host mode\n"); |
| 741 | INFO("T: start sending TEST_PACKET\n"); |
| 742 | INFO("D: set/read dbug level\n"); |
| 743 | break; |
| 744 | #endif |
| 745 | |
| 746 | default: |
| 747 | ERR("Command %c not implemented\n", cmd); |
| 748 | break; |
| 749 | } |
| 750 | |
| 751 | musb_platform_try_idle(musb, 0); |
| 752 | |
| 753 | return count; |
| 754 | } |
| 755 | |
| 756 | static int musb_proc_read(char *page, char **start, |
| 757 | off_t off, int count, int *eof, void *data) |
| 758 | { |
| 759 | char *buffer = page; |
| 760 | int code = 0; |
| 761 | unsigned long flags; |
| 762 | struct musb *musb = data; |
| 763 | unsigned epnum; |
| 764 | |
| 765 | count -= off; |
| 766 | count -= 1; /* for NUL at end */ |
| 767 | if (count <= 0) |
| 768 | return -EINVAL; |
| 769 | |
| 770 | spin_lock_irqsave(&musb->lock, flags); |
| 771 | |
| 772 | code = dump_header_stats(musb, buffer); |
| 773 | if (code > 0) { |
| 774 | buffer += code; |
| 775 | count -= code; |
| 776 | } |
| 777 | |
| 778 | /* generate the report for the end points */ |
| 779 | /* REVISIT ... not unless something's connected! */ |
| 780 | for (epnum = 0; count >= 0 && epnum < musb->nr_endpoints; |
| 781 | epnum++) { |
| 782 | code = dump_end_info(musb, epnum, buffer, count); |
| 783 | if (code > 0) { |
| 784 | buffer += code; |
| 785 | count -= code; |
| 786 | } |
| 787 | } |
| 788 | |
| 789 | musb_platform_try_idle(musb, 0); |
| 790 | |
| 791 | spin_unlock_irqrestore(&musb->lock, flags); |
| 792 | *eof = 1; |
| 793 | |
| 794 | return buffer - page; |
| 795 | } |
| 796 | |
| 797 | void __devexit musb_debug_delete(char *name, struct musb *musb) |
| 798 | { |
| 799 | if (musb->proc_entry) |
| 800 | remove_proc_entry(name, NULL); |
| 801 | } |
| 802 | |
| 803 | struct proc_dir_entry *__init |
| 804 | musb_debug_create(char *name, struct musb *data) |
| 805 | { |
| 806 | struct proc_dir_entry *pde; |
| 807 | |
| 808 | /* FIXME convert everything to seq_file; then later, debugfs */ |
| 809 | |
| 810 | if (!name) |
| 811 | return NULL; |
| 812 | |
| 813 | pde = create_proc_entry(name, S_IFREG | S_IRUGO | S_IWUSR, NULL); |
| 814 | data->proc_entry = pde; |
| 815 | if (pde) { |
| 816 | pde->data = data; |
| 817 | /* pde->owner = THIS_MODULE; */ |
| 818 | |
| 819 | pde->read_proc = musb_proc_read; |
| 820 | pde->write_proc = musb_proc_write; |
| 821 | |
| 822 | pde->size = 0; |
| 823 | |
| 824 | pr_debug("Registered /proc/%s\n", name); |
| 825 | } else { |
| 826 | pr_debug("Cannot create a valid proc file entry"); |
| 827 | } |
| 828 | |
| 829 | return pde; |
| 830 | } |