umoscom.c revision 227309
165977Salex/* $FreeBSD: head/sys/dev/usb/serial/umoscom.c 227309 2011-11-07 15:43:11Z ed $ */ 265977Salex/* $OpenBSD: umoscom.c,v 1.2 2006/10/26 06:02:43 jsg Exp $ */ 365977Salex 465977Salex/* 565977Salex * Copyright (c) 2006 Jonathan Gray <jsg@openbsd.org> 665977Salex * 765977Salex * Permission to use, copy, modify, and distribute this software for any 865977Salex * purpose with or without fee is hereby granted, provided that the above 965977Salex * copyright notice and this permission notice appear in all copies. 1065977Salex * 1165977Salex * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 1265977Salex * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1365977Salex * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 1465977Salex * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1565977Salex * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1665977Salex * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 1765977Salex * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1865977Salex */ 1965977Salex 2065977Salex#include <sys/stdint.h> 2165977Salex#include <sys/stddef.h> 2265977Salex#include <sys/param.h> 2365977Salex#include <sys/queue.h> 2465977Salex#include <sys/types.h> 2565977Salex#include <sys/systm.h> 2665977Salex#include <sys/kernel.h> 2765977Salex#include <sys/bus.h> 2865977Salex#include <sys/module.h> 2965977Salex#include <sys/lock.h> 3065977Salex#include <sys/mutex.h> 31239510Sjhb#include <sys/condvar.h> 3265977Salex#include <sys/sysctl.h> 3365977Salex#include <sys/sx.h> 3465977Salex#include <sys/unistd.h> 35239510Sjhb#include <sys/callout.h> 36239510Sjhb#include <sys/malloc.h> 37239510Sjhb#include <sys/priv.h> 38239510Sjhb 3965977Salex#include <dev/usb/usb.h> 4065977Salex#include <dev/usb/usbdi.h> 4188509Sdavidc#include <dev/usb/usbdi_util.h> 4288509Sdavidc#include "usbdevs.h" 4384306Sru 4484306Sru#define USB_DEBUG_VAR umoscom_debug 4574984Sbde#include <dev/usb/usb_debug.h> 46239510Sjhb#include <dev/usb/usb_process.h> 47239510Sjhb 48239510Sjhb#include <dev/usb/serial/usb_serial.h> 4965977Salex 5065977Salex#ifdef USB_DEBUG 5165977Salexstatic int umoscom_debug = 0; 5265977Salex 5365977Salexstatic SYSCTL_NODE(_hw_usb, OID_AUTO, umoscom, CTLFLAG_RW, 0, "USB umoscom"); 5465977SalexSYSCTL_INT(_hw_usb_umoscom, OID_AUTO, debug, CTLFLAG_RW, 5565977Salex &umoscom_debug, 0, "Debug level"); 5665977Salex#endif 5779676Salex 5865977Salex#define UMOSCOM_BUFSIZE 1024 /* bytes */ 5965977Salex 6065977Salex#define UMOSCOM_CONFIG_INDEX 0 6165977Salex#define UMOSCOM_IFACE_INDEX 0 6265977Salex 6381449Sru/* interrupt packet */ 6465977Salex#define UMOSCOM_IIR_RLS 0x06 6565977Salex#define UMOSCOM_IIR_RDA 0x04 6665977Salex#define UMOSCOM_IIR_CTI 0x0c 6765977Salex#define UMOSCOM_IIR_THR 0x02 6865977Salex#define UMOSCOM_IIR_MS 0x00 6965977Salex 7065977Salex/* registers */ 7165977Salex#define UMOSCOM_READ 0x0d 7265977Salex#define UMOSCOM_WRITE 0x0e 7365977Salex#define UMOSCOM_UART_REG 0x0300 7465977Salex#define UMOSCOM_VEND_REG 0x0000 7565977Salex 7665977Salex#define UMOSCOM_TXBUF 0x00 /* Write */ 7779676Salex#define UMOSCOM_RXBUF 0x00 /* Read */ 7865977Salex#define UMOSCOM_INT 0x01 7979676Salex#define UMOSCOM_FIFO 0x02 /* Write */ 8065977Salex#define UMOSCOM_ISR 0x02 /* Read */ 8165977Salex#define UMOSCOM_LCR 0x03 8265977Salex#define UMOSCOM_MCR 0x04 8365977Salex#define UMOSCOM_LSR 0x05 8465977Salex#define UMOSCOM_MSR 0x06 8565977Salex#define UMOSCOM_SCRATCH 0x07 8665977Salex#define UMOSCOM_DIV_LO 0x08 8765977Salex#define UMOSCOM_DIV_HI 0x09 8865977Salex#define UMOSCOM_EFR 0x0a 8965977Salex#define UMOSCOM_XON1 0x0b 9065977Salex#define UMOSCOM_XON2 0x0c 9179676Salex#define UMOSCOM_XOFF1 0x0d 9265977Salex#define UMOSCOM_XOFF2 0x0e 9365977Salex 9465977Salex#define UMOSCOM_BAUDLO 0x00 9565977Salex#define UMOSCOM_BAUDHI 0x01 9674109Salex 9774109Salex#define UMOSCOM_INT_RXEN 0x01 9865977Salex#define UMOSCOM_INT_TXEN 0x02 9965977Salex#define UMOSCOM_INT_RSEN 0x04 10065977Salex#define UMOSCOM_INT_MDMEM 0x08 10165977Salex#define UMOSCOM_INT_SLEEP 0x10 10265977Salex#define UMOSCOM_INT_XOFF 0x20 10365977Salex#define UMOSCOM_INT_RTS 0x40 104239510Sjhb 105239510Sjhb#define UMOSCOM_FIFO_EN 0x01 106239510Sjhb#define UMOSCOM_FIFO_RXCLR 0x02 107239510Sjhb#define UMOSCOM_FIFO_TXCLR 0x04 108239510Sjhb#define UMOSCOM_FIFO_DMA_BLK 0x08 109239510Sjhb#define UMOSCOM_FIFO_TXLVL_MASK 0x30 110239510Sjhb#define UMOSCOM_FIFO_TXLVL_8 0x00 111239510Sjhb#define UMOSCOM_FIFO_TXLVL_16 0x10 112239510Sjhb#define UMOSCOM_FIFO_TXLVL_32 0x20 113239510Sjhb#define UMOSCOM_FIFO_TXLVL_56 0x30 114239510Sjhb#define UMOSCOM_FIFO_RXLVL_MASK 0xc0 115239510Sjhb#define UMOSCOM_FIFO_RXLVL_8 0x00 116239510Sjhb#define UMOSCOM_FIFO_RXLVL_16 0x40 117239510Sjhb#define UMOSCOM_FIFO_RXLVL_56 0x80 118239510Sjhb#define UMOSCOM_FIFO_RXLVL_80 0xc0 119239510Sjhb 120239510Sjhb#define UMOSCOM_ISR_MDM 0x00 121239510Sjhb#define UMOSCOM_ISR_NONE 0x01 122239510Sjhb#define UMOSCOM_ISR_TX 0x02 123239510Sjhb#define UMOSCOM_ISR_RX 0x04 124239510Sjhb#define UMOSCOM_ISR_LINE 0x06 125239510Sjhb#define UMOSCOM_ISR_RXTIMEOUT 0x0c 126239510Sjhb#define UMOSCOM_ISR_RX_XOFF 0x10 127239510Sjhb#define UMOSCOM_ISR_RTSCTS 0x20 128239510Sjhb#define UMOSCOM_ISR_FIFOEN 0xc0 129239510Sjhb 130239510Sjhb#define UMOSCOM_LCR_DBITS(x) ((x) - 5) 131239510Sjhb#define UMOSCOM_LCR_STOP_BITS_1 0x00 132239510Sjhb#define UMOSCOM_LCR_STOP_BITS_2 0x04 /* 2 if 6-8 bits/char or 1.5 if 5 */ 133239510Sjhb#define UMOSCOM_LCR_PARITY_NONE 0x00 134239510Sjhb#define UMOSCOM_LCR_PARITY_ODD 0x08 135239510Sjhb#define UMOSCOM_LCR_PARITY_EVEN 0x18 136239510Sjhb#define UMOSCOM_LCR_BREAK 0x40 137239510Sjhb#define UMOSCOM_LCR_DIVLATCH_EN 0x80 138239510Sjhb 139239510Sjhb#define UMOSCOM_MCR_DTR 0x01 140239510Sjhb#define UMOSCOM_MCR_RTS 0x02 141239510Sjhb#define UMOSCOM_MCR_LOOP 0x04 142239510Sjhb#define UMOSCOM_MCR_INTEN 0x08 14365977Salex#define UMOSCOM_MCR_LOOPBACK 0x10 14479366Sru#define UMOSCOM_MCR_XONANY 0x20 14565977Salex#define UMOSCOM_MCR_IRDA_EN 0x40 146239510Sjhb#define UMOSCOM_MCR_BAUD_DIV4 0x80 147239510Sjhb 14865977Salex#define UMOSCOM_LSR_RXDATA 0x01 14965977Salex#define UMOSCOM_LSR_RXOVER 0x02 15065977Salex#define UMOSCOM_LSR_RXPAR_ERR 0x04 151#define UMOSCOM_LSR_RXFRM_ERR 0x08 152#define UMOSCOM_LSR_RXBREAK 0x10 153#define UMOSCOM_LSR_TXEMPTY 0x20 154#define UMOSCOM_LSR_TXALLEMPTY 0x40 155#define UMOSCOM_LSR_TXFIFO_ERR 0x80 156 157#define UMOSCOM_MSR_CTS_CHG 0x01 158#define UMOSCOM_MSR_DSR_CHG 0x02 159#define UMOSCOM_MSR_RI_CHG 0x04 160#define UMOSCOM_MSR_CD_CHG 0x08 161#define UMOSCOM_MSR_CTS 0x10 162#define UMOSCOM_MSR_RTS 0x20 163#define UMOSCOM_MSR_RI 0x40 164#define UMOSCOM_MSR_CD 0x80 165 166#define UMOSCOM_BAUD_REF 115200 167 168enum { 169 UMOSCOM_BULK_DT_WR, 170 UMOSCOM_BULK_DT_RD, 171 UMOSCOM_INTR_DT_RD, 172 UMOSCOM_N_TRANSFER, 173}; 174 175struct umoscom_softc { 176 struct ucom_super_softc sc_super_ucom; 177 struct ucom_softc sc_ucom; 178 179 struct usb_xfer *sc_xfer[UMOSCOM_N_TRANSFER]; 180 struct usb_device *sc_udev; 181 struct mtx sc_mtx; 182 183 uint8_t sc_mcr; 184 uint8_t sc_lcr; 185}; 186 187/* prototypes */ 188 189static device_probe_t umoscom_probe; 190static device_attach_t umoscom_attach; 191static device_detach_t umoscom_detach; 192 193static usb_callback_t umoscom_write_callback; 194static usb_callback_t umoscom_read_callback; 195static usb_callback_t umoscom_intr_callback; 196 197static void umoscom_cfg_open(struct ucom_softc *); 198static void umoscom_cfg_close(struct ucom_softc *); 199static void umoscom_cfg_set_break(struct ucom_softc *, uint8_t); 200static void umoscom_cfg_set_dtr(struct ucom_softc *, uint8_t); 201static void umoscom_cfg_set_rts(struct ucom_softc *, uint8_t); 202static int umoscom_pre_param(struct ucom_softc *, struct termios *); 203static void umoscom_cfg_param(struct ucom_softc *, struct termios *); 204static void umoscom_cfg_get_status(struct ucom_softc *, uint8_t *, 205 uint8_t *); 206static void umoscom_cfg_write(struct umoscom_softc *, uint16_t, uint16_t); 207static uint8_t umoscom_cfg_read(struct umoscom_softc *, uint16_t); 208static void umoscom_start_read(struct ucom_softc *); 209static void umoscom_stop_read(struct ucom_softc *); 210static void umoscom_start_write(struct ucom_softc *); 211static void umoscom_stop_write(struct ucom_softc *); 212static void umoscom_poll(struct ucom_softc *ucom); 213 214static const struct usb_config umoscom_config_data[UMOSCOM_N_TRANSFER] = { 215 216 [UMOSCOM_BULK_DT_WR] = { 217 .type = UE_BULK, 218 .endpoint = UE_ADDR_ANY, 219 .direction = UE_DIR_OUT, 220 .bufsize = UMOSCOM_BUFSIZE, 221 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 222 .callback = &umoscom_write_callback, 223 }, 224 225 [UMOSCOM_BULK_DT_RD] = { 226 .type = UE_BULK, 227 .endpoint = UE_ADDR_ANY, 228 .direction = UE_DIR_IN, 229 .bufsize = UMOSCOM_BUFSIZE, 230 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 231 .callback = &umoscom_read_callback, 232 }, 233 234 [UMOSCOM_INTR_DT_RD] = { 235 .type = UE_INTERRUPT, 236 .endpoint = UE_ADDR_ANY, 237 .direction = UE_DIR_IN, 238 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 239 .bufsize = 0, /* use wMaxPacketSize */ 240 .callback = &umoscom_intr_callback, 241 }, 242}; 243 244static const struct ucom_callback umoscom_callback = { 245 /* configuration callbacks */ 246 .ucom_cfg_get_status = &umoscom_cfg_get_status, 247 .ucom_cfg_set_dtr = &umoscom_cfg_set_dtr, 248 .ucom_cfg_set_rts = &umoscom_cfg_set_rts, 249 .ucom_cfg_set_break = &umoscom_cfg_set_break, 250 .ucom_cfg_param = &umoscom_cfg_param, 251 .ucom_cfg_open = &umoscom_cfg_open, 252 .ucom_cfg_close = &umoscom_cfg_close, 253 254 /* other callbacks */ 255 .ucom_pre_param = &umoscom_pre_param, 256 .ucom_start_read = &umoscom_start_read, 257 .ucom_stop_read = &umoscom_stop_read, 258 .ucom_start_write = &umoscom_start_write, 259 .ucom_stop_write = &umoscom_stop_write, 260 .ucom_poll = &umoscom_poll, 261}; 262 263static device_method_t umoscom_methods[] = { 264 DEVMETHOD(device_probe, umoscom_probe), 265 DEVMETHOD(device_attach, umoscom_attach), 266 DEVMETHOD(device_detach, umoscom_detach), 267 {0, 0} 268}; 269 270static devclass_t umoscom_devclass; 271 272static driver_t umoscom_driver = { 273 .name = "umoscom", 274 .methods = umoscom_methods, 275 .size = sizeof(struct umoscom_softc), 276}; 277 278DRIVER_MODULE(umoscom, uhub, umoscom_driver, umoscom_devclass, NULL, 0); 279MODULE_DEPEND(umoscom, ucom, 1, 1, 1); 280MODULE_DEPEND(umoscom, usb, 1, 1, 1); 281MODULE_VERSION(umoscom, 1); 282 283static const STRUCT_USB_HOST_ID umoscom_devs[] = { 284 {USB_VPI(USB_VENDOR_MOSCHIP, USB_PRODUCT_MOSCHIP_MCS7703, 0)} 285}; 286 287static int 288umoscom_probe(device_t dev) 289{ 290 struct usb_attach_arg *uaa = device_get_ivars(dev); 291 292 if (uaa->usb_mode != USB_MODE_HOST) { 293 return (ENXIO); 294 } 295 if (uaa->info.bConfigIndex != UMOSCOM_CONFIG_INDEX) { 296 return (ENXIO); 297 } 298 if (uaa->info.bIfaceIndex != UMOSCOM_IFACE_INDEX) { 299 return (ENXIO); 300 } 301 return (usbd_lookup_id_by_uaa(umoscom_devs, sizeof(umoscom_devs), uaa)); 302} 303 304static int 305umoscom_attach(device_t dev) 306{ 307 struct usb_attach_arg *uaa = device_get_ivars(dev); 308 struct umoscom_softc *sc = device_get_softc(dev); 309 int error; 310 uint8_t iface_index; 311 312 sc->sc_udev = uaa->device; 313 sc->sc_mcr = 0x08; /* enable interrupts */ 314 315 /* XXX the device doesn't provide any ID string, so set a static one */ 316 device_set_desc(dev, "MOSCHIP USB Serial Port Adapter"); 317 device_printf(dev, "<MOSCHIP USB Serial Port Adapter>\n"); 318 319 mtx_init(&sc->sc_mtx, "umoscom", NULL, MTX_DEF); 320 321 iface_index = UMOSCOM_IFACE_INDEX; 322 error = usbd_transfer_setup(uaa->device, &iface_index, 323 sc->sc_xfer, umoscom_config_data, 324 UMOSCOM_N_TRANSFER, sc, &sc->sc_mtx); 325 326 if (error) { 327 goto detach; 328 } 329 /* clear stall at first run */ 330 mtx_lock(&sc->sc_mtx); 331 usbd_xfer_set_stall(sc->sc_xfer[UMOSCOM_BULK_DT_WR]); 332 usbd_xfer_set_stall(sc->sc_xfer[UMOSCOM_BULK_DT_RD]); 333 mtx_unlock(&sc->sc_mtx); 334 335 error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 336 &umoscom_callback, &sc->sc_mtx); 337 if (error) { 338 goto detach; 339 } 340 ucom_set_pnpinfo_usb(&sc->sc_super_ucom, dev); 341 342 return (0); 343 344detach: 345 device_printf(dev, "attach error: %s\n", usbd_errstr(error)); 346 umoscom_detach(dev); 347 return (ENXIO); 348} 349 350static int 351umoscom_detach(device_t dev) 352{ 353 struct umoscom_softc *sc = device_get_softc(dev); 354 355 ucom_detach(&sc->sc_super_ucom, &sc->sc_ucom); 356 usbd_transfer_unsetup(sc->sc_xfer, UMOSCOM_N_TRANSFER); 357 mtx_destroy(&sc->sc_mtx); 358 359 return (0); 360} 361 362static void 363umoscom_cfg_open(struct ucom_softc *ucom) 364{ 365 struct umoscom_softc *sc = ucom->sc_parent; 366 367 DPRINTF("\n"); 368 369 /* Purge FIFOs or odd things happen */ 370 umoscom_cfg_write(sc, UMOSCOM_FIFO, 0x00 | UMOSCOM_UART_REG); 371 372 /* Enable FIFO */ 373 umoscom_cfg_write(sc, UMOSCOM_FIFO, UMOSCOM_FIFO_EN | 374 UMOSCOM_FIFO_RXCLR | UMOSCOM_FIFO_TXCLR | 375 UMOSCOM_FIFO_DMA_BLK | UMOSCOM_FIFO_RXLVL_MASK | 376 UMOSCOM_UART_REG); 377 378 /* Enable Interrupt Registers */ 379 umoscom_cfg_write(sc, UMOSCOM_INT, 0x0C | UMOSCOM_UART_REG); 380 381 /* Magic */ 382 umoscom_cfg_write(sc, 0x01, 0x08); 383 384 /* Magic */ 385 umoscom_cfg_write(sc, 0x00, 0x02); 386} 387 388static void 389umoscom_cfg_close(struct ucom_softc *ucom) 390{ 391 return; 392} 393 394static void 395umoscom_cfg_set_break(struct ucom_softc *ucom, uint8_t onoff) 396{ 397 struct umoscom_softc *sc = ucom->sc_parent; 398 uint16_t val; 399 400 val = sc->sc_lcr; 401 if (onoff) 402 val |= UMOSCOM_LCR_BREAK; 403 404 umoscom_cfg_write(sc, UMOSCOM_LCR, val | UMOSCOM_UART_REG); 405} 406 407static void 408umoscom_cfg_set_dtr(struct ucom_softc *ucom, uint8_t onoff) 409{ 410 struct umoscom_softc *sc = ucom->sc_parent; 411 412 if (onoff) 413 sc->sc_mcr |= UMOSCOM_MCR_DTR; 414 else 415 sc->sc_mcr &= ~UMOSCOM_MCR_DTR; 416 417 umoscom_cfg_write(sc, UMOSCOM_MCR, sc->sc_mcr | UMOSCOM_UART_REG); 418} 419 420static void 421umoscom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff) 422{ 423 struct umoscom_softc *sc = ucom->sc_parent; 424 425 if (onoff) 426 sc->sc_mcr |= UMOSCOM_MCR_RTS; 427 else 428 sc->sc_mcr &= ~UMOSCOM_MCR_RTS; 429 430 umoscom_cfg_write(sc, UMOSCOM_MCR, sc->sc_mcr | UMOSCOM_UART_REG); 431} 432 433static int 434umoscom_pre_param(struct ucom_softc *ucom, struct termios *t) 435{ 436 if ((t->c_ospeed <= 1) || (t->c_ospeed > 115200)) 437 return (EINVAL); 438 439 return (0); 440} 441 442static void 443umoscom_cfg_param(struct ucom_softc *ucom, struct termios *t) 444{ 445 struct umoscom_softc *sc = ucom->sc_parent; 446 uint16_t data; 447 448 DPRINTF("speed=%d\n", t->c_ospeed); 449 450 data = ((uint32_t)UMOSCOM_BAUD_REF) / ((uint32_t)t->c_ospeed); 451 452 if (data == 0) { 453 DPRINTF("invalid baud rate!\n"); 454 return; 455 } 456 umoscom_cfg_write(sc, UMOSCOM_LCR, 457 UMOSCOM_LCR_DIVLATCH_EN | UMOSCOM_UART_REG); 458 459 umoscom_cfg_write(sc, UMOSCOM_BAUDLO, 460 (data & 0xFF) | UMOSCOM_UART_REG); 461 462 umoscom_cfg_write(sc, UMOSCOM_BAUDHI, 463 ((data >> 8) & 0xFF) | UMOSCOM_UART_REG); 464 465 if (t->c_cflag & CSTOPB) 466 data = UMOSCOM_LCR_STOP_BITS_2; 467 else 468 data = UMOSCOM_LCR_STOP_BITS_1; 469 470 if (t->c_cflag & PARENB) { 471 if (t->c_cflag & PARODD) 472 data |= UMOSCOM_LCR_PARITY_ODD; 473 else 474 data |= UMOSCOM_LCR_PARITY_EVEN; 475 } else 476 data |= UMOSCOM_LCR_PARITY_NONE; 477 478 switch (t->c_cflag & CSIZE) { 479 case CS5: 480 data |= UMOSCOM_LCR_DBITS(5); 481 break; 482 case CS6: 483 data |= UMOSCOM_LCR_DBITS(6); 484 break; 485 case CS7: 486 data |= UMOSCOM_LCR_DBITS(7); 487 break; 488 case CS8: 489 data |= UMOSCOM_LCR_DBITS(8); 490 break; 491 } 492 493 sc->sc_lcr = data; 494 umoscom_cfg_write(sc, UMOSCOM_LCR, data | UMOSCOM_UART_REG); 495} 496 497static void 498umoscom_cfg_get_status(struct ucom_softc *ucom, uint8_t *p_lsr, uint8_t *p_msr) 499{ 500 struct umoscom_softc *sc = ucom->sc_parent; 501 uint8_t lsr; 502 uint8_t msr; 503 504 DPRINTFN(5, "\n"); 505 506 /* read status registers */ 507 508 lsr = umoscom_cfg_read(sc, UMOSCOM_LSR); 509 msr = umoscom_cfg_read(sc, UMOSCOM_MSR); 510 511 /* translate bits */ 512 513 if (msr & UMOSCOM_MSR_CTS) 514 *p_msr |= SER_CTS; 515 516 if (msr & UMOSCOM_MSR_CD) 517 *p_msr |= SER_DCD; 518 519 if (msr & UMOSCOM_MSR_RI) 520 *p_msr |= SER_RI; 521 522 if (msr & UMOSCOM_MSR_RTS) 523 *p_msr |= SER_DSR; 524} 525 526static void 527umoscom_cfg_write(struct umoscom_softc *sc, uint16_t reg, uint16_t val) 528{ 529 struct usb_device_request req; 530 531 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 532 req.bRequest = UMOSCOM_WRITE; 533 USETW(req.wValue, val); 534 USETW(req.wIndex, reg); 535 USETW(req.wLength, 0); 536 537 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 538 &req, NULL, 0, 1000); 539} 540 541static uint8_t 542umoscom_cfg_read(struct umoscom_softc *sc, uint16_t reg) 543{ 544 struct usb_device_request req; 545 uint8_t val; 546 547 req.bmRequestType = UT_READ_VENDOR_DEVICE; 548 req.bRequest = UMOSCOM_READ; 549 USETW(req.wValue, 0); 550 USETW(req.wIndex, reg); 551 USETW(req.wLength, 1); 552 553 ucom_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 554 &req, &val, 0, 1000); 555 556 DPRINTF("reg=0x%04x, val=0x%02x\n", reg, val); 557 558 return (val); 559} 560 561static void 562umoscom_start_read(struct ucom_softc *ucom) 563{ 564 struct umoscom_softc *sc = ucom->sc_parent; 565 566#if 0 567 /* start interrupt endpoint */ 568 usbd_transfer_start(sc->sc_xfer[UMOSCOM_INTR_DT_RD]); 569#endif 570 /* start read endpoint */ 571 usbd_transfer_start(sc->sc_xfer[UMOSCOM_BULK_DT_RD]); 572} 573 574static void 575umoscom_stop_read(struct ucom_softc *ucom) 576{ 577 struct umoscom_softc *sc = ucom->sc_parent; 578 579 /* stop interrupt transfer */ 580 usbd_transfer_stop(sc->sc_xfer[UMOSCOM_INTR_DT_RD]); 581 582 /* stop read endpoint */ 583 usbd_transfer_stop(sc->sc_xfer[UMOSCOM_BULK_DT_RD]); 584} 585 586static void 587umoscom_start_write(struct ucom_softc *ucom) 588{ 589 struct umoscom_softc *sc = ucom->sc_parent; 590 591 usbd_transfer_start(sc->sc_xfer[UMOSCOM_BULK_DT_WR]); 592} 593 594static void 595umoscom_stop_write(struct ucom_softc *ucom) 596{ 597 struct umoscom_softc *sc = ucom->sc_parent; 598 599 usbd_transfer_stop(sc->sc_xfer[UMOSCOM_BULK_DT_WR]); 600} 601 602static void 603umoscom_write_callback(struct usb_xfer *xfer, usb_error_t error) 604{ 605 struct umoscom_softc *sc = usbd_xfer_softc(xfer); 606 struct usb_page_cache *pc; 607 uint32_t actlen; 608 609 switch (USB_GET_STATE(xfer)) { 610 case USB_ST_SETUP: 611 case USB_ST_TRANSFERRED: 612tr_setup: 613 DPRINTF("\n"); 614 615 pc = usbd_xfer_get_frame(xfer, 0); 616 if (ucom_get_data(&sc->sc_ucom, pc, 0, 617 UMOSCOM_BUFSIZE, &actlen)) { 618 619 usbd_xfer_set_frame_len(xfer, 0, actlen); 620 usbd_transfer_submit(xfer); 621 } 622 return; 623 624 default: /* Error */ 625 if (error != USB_ERR_CANCELLED) { 626 DPRINTFN(0, "transfer failed\n"); 627 /* try to clear stall first */ 628 usbd_xfer_set_stall(xfer); 629 goto tr_setup; 630 } 631 return; 632 } 633} 634 635static void 636umoscom_read_callback(struct usb_xfer *xfer, usb_error_t error) 637{ 638 struct umoscom_softc *sc = usbd_xfer_softc(xfer); 639 struct usb_page_cache *pc; 640 int actlen; 641 642 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 643 644 switch (USB_GET_STATE(xfer)) { 645 case USB_ST_TRANSFERRED: 646 DPRINTF("got %d bytes\n", actlen); 647 pc = usbd_xfer_get_frame(xfer, 0); 648 ucom_put_data(&sc->sc_ucom, pc, 0, actlen); 649 650 case USB_ST_SETUP: 651tr_setup: 652 DPRINTF("\n"); 653 654 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 655 usbd_transfer_submit(xfer); 656 return; 657 658 default: /* Error */ 659 if (error != USB_ERR_CANCELLED) { 660 DPRINTFN(0, "transfer failed\n"); 661 /* try to clear stall first */ 662 usbd_xfer_set_stall(xfer); 663 goto tr_setup; 664 } 665 return; 666 } 667} 668 669static void 670umoscom_intr_callback(struct usb_xfer *xfer, usb_error_t error) 671{ 672 struct umoscom_softc *sc = usbd_xfer_softc(xfer); 673 int actlen; 674 675 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 676 677 switch (USB_GET_STATE(xfer)) { 678 case USB_ST_TRANSFERRED: 679 if (actlen < 2) { 680 DPRINTF("too short message\n"); 681 goto tr_setup; 682 } 683 ucom_status_change(&sc->sc_ucom); 684 685 case USB_ST_SETUP: 686tr_setup: 687 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 688 usbd_transfer_submit(xfer); 689 return; 690 691 default: /* Error */ 692 if (error != USB_ERR_CANCELLED) { 693 DPRINTFN(0, "transfer failed\n"); 694 /* try to clear stall first */ 695 usbd_xfer_set_stall(xfer); 696 goto tr_setup; 697 } 698 return; 699 } 700} 701 702static void 703umoscom_poll(struct ucom_softc *ucom) 704{ 705 struct umoscom_softc *sc = ucom->sc_parent; 706 usbd_transfer_poll(sc->sc_xfer, UMOSCOM_N_TRANSFER); 707} 708