uftdi.c revision 188942
1183375Skmacy/* $NetBSD: uftdi.c,v 1.13 2002/09/23 05:51:23 simonb Exp $ */ 2183375Skmacy 3183375Skmacy/*- 4183375Skmacy * Copyright (c) 2000 The NetBSD Foundation, Inc. 5183375Skmacy * All rights reserved. 6183375Skmacy * 7183375Skmacy * This code is derived from software contributed to The NetBSD Foundation 8183375Skmacy * by Lennart Augustsson (lennart@augustsson.net). 9183375Skmacy * 10183375Skmacy * Redistribution and use in source and binary forms, with or without 11183375Skmacy * modification, are permitted provided that the following conditions 12183375Skmacy * are met: 13183375Skmacy * 1. Redistributions of source code must retain the above copyright 14183375Skmacy * notice, this list of conditions and the following disclaimer. 15183375Skmacy * 2. Redistributions in binary form must reproduce the above copyright 16183375Skmacy * notice, this list of conditions and the following disclaimer in the 17183375Skmacy * documentation and/or other materials provided with the distribution. 18183375Skmacy * 3. All advertising materials mentioning features or use of this software 19183375Skmacy * must display the following acknowledgement: 20183375Skmacy * This product includes software developed by the NetBSD 21183375Skmacy * Foundation, Inc. and its contributors. 22183375Skmacy * 4. Neither the name of The NetBSD Foundation nor the names of its 23181624Skmacy * contributors may be used to endorse or promote products derived 24181624Skmacy * from this software without specific prior written permission. 25181624Skmacy * 26183375Skmacy * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27181624Skmacy * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28181624Skmacy * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29181624Skmacy * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30181624Skmacy * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31181624Skmacy * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32181624Skmacy * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33181624Skmacy * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34181624Skmacy * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35181624Skmacy * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36181624Skmacy * POSSIBILITY OF SUCH DAMAGE. 37181624Skmacy */ 38181624Skmacy 39181624Skmacy#include <sys/cdefs.h> 40181624Skmacy__FBSDID("$FreeBSD: head/sys/dev/usb/serial/uftdi.c 188942 2009-02-23 18:31:00Z thompsa $"); 41181624Skmacy 42181624Skmacy/* 43181624Skmacy * NOTE: all function names beginning like "uftdi_cfg_" can only 44181624Skmacy * be called from within the config thread function ! 45181624Skmacy */ 46181624Skmacy 47181624Skmacy/* 48181624Skmacy * FTDI FT8U100AX serial adapter driver 49181624Skmacy */ 50181624Skmacy 51181624Skmacy#include "usbdevs.h" 52181624Skmacy#include <dev/usb/usb.h> 53181624Skmacy#include <dev/usb/usb_mfunc.h> 54181624Skmacy#include <dev/usb/usb_error.h> 55181624Skmacy#include <dev/usb/usb_cdc.h> 56181624Skmacy 57181624Skmacy#define USB_DEBUG_VAR uftdi_debug 58181624Skmacy 59181624Skmacy#include <dev/usb/usb_core.h> 60181624Skmacy#include <dev/usb/usb_debug.h> 61181624Skmacy#include <dev/usb/usb_process.h> 62181624Skmacy#include <dev/usb/usb_request.h> 63181624Skmacy#include <dev/usb/usb_lookup.h> 64181624Skmacy#include <dev/usb/usb_util.h> 65181624Skmacy#include <dev/usb/usb_busdma.h> 66181624Skmacy 67181624Skmacy#include <dev/usb/serial/usb_serial.h> 68181624Skmacy#include <dev/usb/serial/uftdi_reg.h> 69181624Skmacy 70181624Skmacy#if USB_DEBUG 71181624Skmacystatic int uftdi_debug = 0; 72181624Skmacy 73181624SkmacySYSCTL_NODE(_hw_usb2, OID_AUTO, uftdi, CTLFLAG_RW, 0, "USB uftdi"); 74181624SkmacySYSCTL_INT(_hw_usb2_uftdi, OID_AUTO, debug, CTLFLAG_RW, 75181624Skmacy &uftdi_debug, 0, "Debug level"); 76181624Skmacy#endif 77181624Skmacy 78181624Skmacy#define UFTDI_CONFIG_INDEX 0 79181624Skmacy#define UFTDI_IFACE_INDEX 0 80181624Skmacy 81181624Skmacy#define UFTDI_IBUFSIZE 64 /* bytes, maximum number of bytes per 82181624Skmacy * frame */ 83181624Skmacy#define UFTDI_OBUFSIZE 64 /* bytes, cannot be increased due to 84181624Skmacy * do size encoding */ 85181624Skmacy 86181624Skmacyenum { 87181624Skmacy UFTDI_BULK_DT_WR, 88181624Skmacy UFTDI_BULK_DT_RD, 89181624Skmacy UFTDI_N_TRANSFER, 90181624Skmacy}; 91181624Skmacy 92183375Skmacystruct uftdi_softc { 93183375Skmacy struct usb2_com_super_softc sc_super_ucom; 94183375Skmacy struct usb2_com_softc sc_ucom; 95181624Skmacy 96181624Skmacy struct usb2_device *sc_udev; 97181624Skmacy struct usb2_xfer *sc_xfer[UFTDI_N_TRANSFER]; 98181624Skmacy device_t sc_dev; 99181624Skmacy 100181624Skmacy uint32_t sc_unit; 101181624Skmacy enum uftdi_type sc_type; 102181624Skmacy 103181624Skmacy uint16_t sc_last_lcr; 104181624Skmacy 105181624Skmacy uint8_t sc_iface_index; 106181624Skmacy uint8_t sc_hdrlen; 107181624Skmacy uint8_t sc_msr; 108181624Skmacy uint8_t sc_lsr; 109181624Skmacy 110181624Skmacy uint8_t sc_name[16]; 111181624Skmacy}; 112181624Skmacy 113181624Skmacystruct uftdi_param_config { 114181624Skmacy uint16_t rate; 115181624Skmacy uint16_t lcr; 116181624Skmacy uint8_t v_start; 117183375Skmacy uint8_t v_stop; 118183375Skmacy uint8_t v_flow; 119183375Skmacy}; 120183375Skmacy 121183375Skmacy/* prototypes */ 122183375Skmacy 123183375Skmacystatic device_probe_t uftdi_probe; 124183375Skmacystatic device_attach_t uftdi_attach; 125181624Skmacystatic device_detach_t uftdi_detach; 126183375Skmacy 127183375Skmacystatic usb2_callback_t uftdi_write_callback; 128183375Skmacystatic usb2_callback_t uftdi_read_callback; 129183375Skmacy 130183375Skmacystatic void uftdi_cfg_open(struct usb2_com_softc *); 131183375Skmacystatic void uftdi_cfg_set_dtr(struct usb2_com_softc *, uint8_t); 132183375Skmacystatic void uftdi_cfg_set_rts(struct usb2_com_softc *, uint8_t); 133183375Skmacystatic void uftdi_cfg_set_break(struct usb2_com_softc *, uint8_t); 134181624Skmacystatic int uftdi_set_parm_soft(struct termios *, 135183375Skmacy struct uftdi_param_config *, uint8_t); 136183375Skmacystatic int uftdi_pre_param(struct usb2_com_softc *, struct termios *); 137183375Skmacystatic void uftdi_cfg_param(struct usb2_com_softc *, struct termios *); 138181624Skmacystatic void uftdi_cfg_get_status(struct usb2_com_softc *, uint8_t *, 139181624Skmacy uint8_t *); 140183375Skmacystatic void uftdi_start_read(struct usb2_com_softc *); 141181624Skmacystatic void uftdi_stop_read(struct usb2_com_softc *); 142183375Skmacystatic void uftdi_start_write(struct usb2_com_softc *); 143181624Skmacystatic void uftdi_stop_write(struct usb2_com_softc *); 144181624Skmacystatic uint8_t uftdi_8u232am_getrate(uint32_t, uint16_t *); 145181624Skmacy 146181624Skmacystatic const struct usb2_config uftdi_config[UFTDI_N_TRANSFER] = { 147181624Skmacy 148181624Skmacy [UFTDI_BULK_DT_WR] = { 149181624Skmacy .type = UE_BULK, 150181624Skmacy .endpoint = UE_ADDR_ANY, 151181624Skmacy .direction = UE_DIR_OUT, 152181624Skmacy .mh.bufsize = UFTDI_OBUFSIZE, 153181624Skmacy .mh.flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 154181624Skmacy .mh.callback = &uftdi_write_callback, 155181624Skmacy }, 156181624Skmacy 157181624Skmacy [UFTDI_BULK_DT_RD] = { 158181624Skmacy .type = UE_BULK, 159181624Skmacy .endpoint = UE_ADDR_ANY, 160181624Skmacy .direction = UE_DIR_IN, 161181624Skmacy .mh.bufsize = UFTDI_IBUFSIZE, 162181624Skmacy .mh.flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 163181624Skmacy .mh.callback = &uftdi_read_callback, 164181624Skmacy }, 165181624Skmacy}; 166181624Skmacy 167181624Skmacystatic const struct usb2_com_callback uftdi_callback = { 168181624Skmacy .usb2_com_cfg_get_status = &uftdi_cfg_get_status, 169181624Skmacy .usb2_com_cfg_set_dtr = &uftdi_cfg_set_dtr, 170181624Skmacy .usb2_com_cfg_set_rts = &uftdi_cfg_set_rts, 171181624Skmacy .usb2_com_cfg_set_break = &uftdi_cfg_set_break, 172181624Skmacy .usb2_com_cfg_param = &uftdi_cfg_param, 173181624Skmacy .usb2_com_cfg_open = &uftdi_cfg_open, 174181624Skmacy .usb2_com_pre_param = &uftdi_pre_param, 175181624Skmacy .usb2_com_start_read = &uftdi_start_read, 176181624Skmacy .usb2_com_stop_read = &uftdi_stop_read, 177181624Skmacy .usb2_com_start_write = &uftdi_start_write, 178181624Skmacy .usb2_com_stop_write = &uftdi_stop_write, 179181624Skmacy}; 180181624Skmacy 181181624Skmacystatic device_method_t uftdi_methods[] = { 182181624Skmacy /* Device interface */ 183181624Skmacy DEVMETHOD(device_probe, uftdi_probe), 184181624Skmacy DEVMETHOD(device_attach, uftdi_attach), 185181624Skmacy DEVMETHOD(device_detach, uftdi_detach), 186181624Skmacy 187181624Skmacy {0, 0} 188181624Skmacy}; 189181624Skmacy 190183375Skmacystatic devclass_t uftdi_devclass; 191183375Skmacy 192181624Skmacystatic driver_t uftdi_driver = { 193181624Skmacy .name = "uftdi", 194181624Skmacy .methods = uftdi_methods, 195181624Skmacy .size = sizeof(struct uftdi_softc), 196181624Skmacy}; 197181624Skmacy 198181624SkmacyDRIVER_MODULE(uftdi, ushub, uftdi_driver, uftdi_devclass, NULL, 0); 199181624SkmacyMODULE_DEPEND(uftdi, ucom, 1, 1, 1); 200181624SkmacyMODULE_DEPEND(uftdi, usb, 1, 1, 1); 201181624Skmacy 202181624Skmacystatic struct usb2_device_id uftdi_devs[] = { 203181624Skmacy {USB_VPI(USB_VENDOR_DRESDENELEKTRONIK, USB_PRODUCT_DRESDENELEKTRONIK_SENSORTERMINALBOARD, UFTDI_TYPE_8U232AM)}, 204181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SERIAL_8U100AX, UFTDI_TYPE_SIO)}, 205181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SERIAL_2232C, UFTDI_TYPE_8U232AM)}, 206181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SERIAL_8U232AM, UFTDI_TYPE_8U232AM)}, 207181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_SEMC_DSS20, UFTDI_TYPE_8U232AM)}, 208181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_CFA_631, UFTDI_TYPE_8U232AM)}, 209181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_CFA_632, UFTDI_TYPE_8U232AM)}, 210181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_CFA_633, UFTDI_TYPE_8U232AM)}, 211181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_CFA_634, UFTDI_TYPE_8U232AM)}, 212183375Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_CFA_635, UFTDI_TYPE_8U232AM)}, 213183375Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_USBSERIAL, UFTDI_TYPE_8U232AM)}, 214181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MX2_3, UFTDI_TYPE_8U232AM)}, 215181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MX4_5, UFTDI_TYPE_8U232AM)}, 216181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LK202, UFTDI_TYPE_8U232AM)}, 217181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_LK204, UFTDI_TYPE_8U232AM)}, 218181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_TACTRIX_OPENPORT_13M, UFTDI_TYPE_8U232AM)}, 219181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_TACTRIX_OPENPORT_13S, UFTDI_TYPE_8U232AM)}, 220181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_TACTRIX_OPENPORT_13U, UFTDI_TYPE_8U232AM)}, 221181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_EISCOU, UFTDI_TYPE_8U232AM)}, 222181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_UOPTBR, UFTDI_TYPE_8U232AM)}, 223181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_EMCU2D, UFTDI_TYPE_8U232AM)}, 224181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_PCMSFU, UFTDI_TYPE_8U232AM)}, 225181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_EMCU2H, UFTDI_TYPE_8U232AM)}, 226181624Skmacy {USB_VPI(USB_VENDOR_FTDI, USB_PRODUCT_FTDI_MAXSTREAM, UFTDI_TYPE_8U232AM)}, 227181624Skmacy {USB_VPI(USB_VENDOR_SIIG2, USB_PRODUCT_SIIG2_US2308, UFTDI_TYPE_8U232AM)}, 228181624Skmacy {USB_VPI(USB_VENDOR_INTREPIDCS, USB_PRODUCT_INTREPIDCS_VALUECAN, UFTDI_TYPE_8U232AM)}, 229181624Skmacy {USB_VPI(USB_VENDOR_INTREPIDCS, USB_PRODUCT_INTREPIDCS_NEOVI, UFTDI_TYPE_8U232AM)}, 230181624Skmacy {USB_VPI(USB_VENDOR_BBELECTRONICS, USB_PRODUCT_BBELECTRONICS_USOTL4, UFTDI_TYPE_8U232AM)}, 231181624Skmacy {USB_VPI(USB_VENDOR_MELCO, USB_PRODUCT_MELCO_PCOPRS1, UFTDI_TYPE_8U232AM)}, 232181624Skmacy}; 233181624Skmacy 234181624Skmacystatic int 235181624Skmacyuftdi_probe(device_t dev) 236181624Skmacy{ 237181624Skmacy struct usb2_attach_arg *uaa = device_get_ivars(dev); 238181624Skmacy 239181624Skmacy if (uaa->usb2_mode != USB_MODE_HOST) { 240181624Skmacy return (ENXIO); 241181624Skmacy } 242181624Skmacy if (uaa->info.bConfigIndex != UFTDI_CONFIG_INDEX) { 243181624Skmacy return (ENXIO); 244181624Skmacy } 245181624Skmacy /* attach to all present interfaces */ 246181624Skmacy 247181624Skmacy return (usb2_lookup_id_by_uaa(uftdi_devs, sizeof(uftdi_devs), uaa)); 248181624Skmacy} 249181624Skmacy 250181624Skmacystatic int 251181624Skmacyuftdi_attach(device_t dev) 252181624Skmacy{ 253181624Skmacy struct usb2_attach_arg *uaa = device_get_ivars(dev); 254181624Skmacy struct uftdi_softc *sc = device_get_softc(dev); 255183375Skmacy int error; 256183375Skmacy 257181624Skmacy sc->sc_udev = uaa->device; 258183375Skmacy sc->sc_dev = dev; 259183375Skmacy sc->sc_unit = device_get_unit(dev); 260181624Skmacy 261183375Skmacy device_set_usb2_desc(dev); 262181624Skmacy 263183375Skmacy snprintf(sc->sc_name, sizeof(sc->sc_name), 264181624Skmacy "%s", device_get_nameunit(dev)); 265181624Skmacy 266 DPRINTF("\n"); 267 268 sc->sc_iface_index = uaa->info.bIfaceIndex; 269 sc->sc_type = USB_GET_DRIVER_INFO(uaa); 270 271 switch (sc->sc_type) { 272 case UFTDI_TYPE_SIO: 273 sc->sc_hdrlen = 1; 274 break; 275 case UFTDI_TYPE_8U232AM: 276 default: 277 sc->sc_hdrlen = 0; 278 break; 279 } 280 281 error = usb2_transfer_setup(uaa->device, 282 &sc->sc_iface_index, sc->sc_xfer, uftdi_config, 283 UFTDI_N_TRANSFER, sc, &Giant); 284 285 if (error) { 286 device_printf(dev, "allocating USB " 287 "transfers failed!\n"); 288 goto detach; 289 } 290 sc->sc_ucom.sc_portno = FTDI_PIT_SIOA + uaa->info.bIfaceNum; 291 292 /* clear stall at first run */ 293 usb2_transfer_set_stall(sc->sc_xfer[UFTDI_BULK_DT_WR]); 294 usb2_transfer_set_stall(sc->sc_xfer[UFTDI_BULK_DT_RD]); 295 296 /* set a valid "lcr" value */ 297 298 sc->sc_last_lcr = 299 (FTDI_SIO_SET_DATA_STOP_BITS_2 | 300 FTDI_SIO_SET_DATA_PARITY_NONE | 301 FTDI_SIO_SET_DATA_BITS(8)); 302 303 error = usb2_com_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, 304 &uftdi_callback, &Giant); 305 if (error) { 306 goto detach; 307 } 308 return (0); /* success */ 309 310detach: 311 uftdi_detach(dev); 312 return (ENXIO); 313} 314 315static int 316uftdi_detach(device_t dev) 317{ 318 struct uftdi_softc *sc = device_get_softc(dev); 319 320 usb2_com_detach(&sc->sc_super_ucom, &sc->sc_ucom, 1); 321 322 usb2_transfer_unsetup(sc->sc_xfer, UFTDI_N_TRANSFER); 323 324 return (0); 325} 326 327static void 328uftdi_cfg_open(struct usb2_com_softc *ucom) 329{ 330 struct uftdi_softc *sc = ucom->sc_parent; 331 uint16_t wIndex = ucom->sc_portno; 332 struct usb2_device_request req; 333 334 DPRINTF(""); 335 336 /* perform a full reset on the device */ 337 338 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 339 req.bRequest = FTDI_SIO_RESET; 340 USETW(req.wValue, FTDI_SIO_RESET_SIO); 341 USETW(req.wIndex, wIndex); 342 USETW(req.wLength, 0); 343 usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 344 &req, NULL, 0, 1000); 345 346 /* turn on RTS/CTS flow control */ 347 348 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 349 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 350 USETW(req.wValue, 0); 351 USETW2(req.wIndex, FTDI_SIO_RTS_CTS_HS, wIndex); 352 USETW(req.wLength, 0); 353 usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 354 &req, NULL, 0, 1000); 355 356 /* 357 * NOTE: with the new UCOM layer there will always be a 358 * "uftdi_cfg_param()" call after "open()", so there is no need for 359 * "open()" to configure anything 360 */ 361} 362 363static void 364uftdi_write_callback(struct usb2_xfer *xfer) 365{ 366 struct uftdi_softc *sc = xfer->priv_sc; 367 uint32_t actlen; 368 uint8_t buf[1]; 369 370 switch (USB_GET_STATE(xfer)) { 371 case USB_ST_SETUP: 372 case USB_ST_TRANSFERRED: 373tr_setup: 374 if (usb2_com_get_data(&sc->sc_ucom, xfer->frbuffers, 375 sc->sc_hdrlen, UFTDI_OBUFSIZE - sc->sc_hdrlen, 376 &actlen)) { 377 378 if (sc->sc_hdrlen > 0) { 379 buf[0] = 380 FTDI_OUT_TAG(actlen, sc->sc_ucom.sc_portno); 381 usb2_copy_in(xfer->frbuffers, 0, buf, 1); 382 } 383 xfer->frlengths[0] = actlen + sc->sc_hdrlen; 384 usb2_start_hardware(xfer); 385 } 386 return; 387 388 default: /* Error */ 389 if (xfer->error != USB_ERR_CANCELLED) { 390 /* try to clear stall first */ 391 xfer->flags.stall_pipe = 1; 392 goto tr_setup; 393 } 394 return; 395 } 396} 397 398static void 399uftdi_read_callback(struct usb2_xfer *xfer) 400{ 401 struct uftdi_softc *sc = xfer->priv_sc; 402 uint8_t buf[2]; 403 uint8_t ftdi_msr; 404 uint8_t msr; 405 uint8_t lsr; 406 407 switch (USB_GET_STATE(xfer)) { 408 case USB_ST_TRANSFERRED: 409 410 if (xfer->actlen < 2) { 411 goto tr_setup; 412 } 413 usb2_copy_out(xfer->frbuffers, 0, buf, 2); 414 415 ftdi_msr = FTDI_GET_MSR(buf); 416 lsr = FTDI_GET_LSR(buf); 417 418 msr = 0; 419 if (ftdi_msr & FTDI_SIO_CTS_MASK) 420 msr |= SER_CTS; 421 if (ftdi_msr & FTDI_SIO_DSR_MASK) 422 msr |= SER_DSR; 423 if (ftdi_msr & FTDI_SIO_RI_MASK) 424 msr |= SER_RI; 425 if (ftdi_msr & FTDI_SIO_RLSD_MASK) 426 msr |= SER_DCD; 427 428 if ((sc->sc_msr != msr) || 429 ((sc->sc_lsr & FTDI_LSR_MASK) != (lsr & FTDI_LSR_MASK))) { 430 DPRINTF("status change msr=0x%02x (0x%02x) " 431 "lsr=0x%02x (0x%02x)\n", msr, sc->sc_msr, 432 lsr, sc->sc_lsr); 433 434 sc->sc_msr = msr; 435 sc->sc_lsr = lsr; 436 437 usb2_com_status_change(&sc->sc_ucom); 438 } 439 xfer->actlen -= 2; 440 441 if (xfer->actlen > 0) { 442 usb2_com_put_data(&sc->sc_ucom, xfer->frbuffers, 2, 443 xfer->actlen); 444 } 445 case USB_ST_SETUP: 446tr_setup: 447 xfer->frlengths[0] = xfer->max_data_length; 448 usb2_start_hardware(xfer); 449 return; 450 451 default: /* Error */ 452 if (xfer->error != USB_ERR_CANCELLED) { 453 /* try to clear stall first */ 454 xfer->flags.stall_pipe = 1; 455 goto tr_setup; 456 } 457 return; 458 } 459} 460 461static void 462uftdi_cfg_set_dtr(struct usb2_com_softc *ucom, uint8_t onoff) 463{ 464 struct uftdi_softc *sc = ucom->sc_parent; 465 uint16_t wIndex = ucom->sc_portno; 466 uint16_t wValue; 467 struct usb2_device_request req; 468 469 wValue = onoff ? FTDI_SIO_SET_DTR_HIGH : FTDI_SIO_SET_DTR_LOW; 470 471 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 472 req.bRequest = FTDI_SIO_MODEM_CTRL; 473 USETW(req.wValue, wValue); 474 USETW(req.wIndex, wIndex); 475 USETW(req.wLength, 0); 476 usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 477 &req, NULL, 0, 1000); 478} 479 480static void 481uftdi_cfg_set_rts(struct usb2_com_softc *ucom, uint8_t onoff) 482{ 483 struct uftdi_softc *sc = ucom->sc_parent; 484 uint16_t wIndex = ucom->sc_portno; 485 uint16_t wValue; 486 struct usb2_device_request req; 487 488 wValue = onoff ? FTDI_SIO_SET_RTS_HIGH : FTDI_SIO_SET_RTS_LOW; 489 490 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 491 req.bRequest = FTDI_SIO_MODEM_CTRL; 492 USETW(req.wValue, wValue); 493 USETW(req.wIndex, wIndex); 494 USETW(req.wLength, 0); 495 usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 496 &req, NULL, 0, 1000); 497} 498 499static void 500uftdi_cfg_set_break(struct usb2_com_softc *ucom, uint8_t onoff) 501{ 502 struct uftdi_softc *sc = ucom->sc_parent; 503 uint16_t wIndex = ucom->sc_portno; 504 uint16_t wValue; 505 struct usb2_device_request req; 506 507 if (onoff) { 508 sc->sc_last_lcr |= FTDI_SIO_SET_BREAK; 509 } else { 510 sc->sc_last_lcr &= ~FTDI_SIO_SET_BREAK; 511 } 512 513 wValue = sc->sc_last_lcr; 514 515 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 516 req.bRequest = FTDI_SIO_SET_DATA; 517 USETW(req.wValue, wValue); 518 USETW(req.wIndex, wIndex); 519 USETW(req.wLength, 0); 520 usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 521 &req, NULL, 0, 1000); 522} 523 524static int 525uftdi_set_parm_soft(struct termios *t, 526 struct uftdi_param_config *cfg, uint8_t type) 527{ 528 bzero(cfg, sizeof(*cfg)); 529 530 switch (type) { 531 case UFTDI_TYPE_SIO: 532 switch (t->c_ospeed) { 533 case 300: 534 cfg->rate = ftdi_sio_b300; 535 break; 536 case 600: 537 cfg->rate = ftdi_sio_b600; 538 break; 539 case 1200: 540 cfg->rate = ftdi_sio_b1200; 541 break; 542 case 2400: 543 cfg->rate = ftdi_sio_b2400; 544 break; 545 case 4800: 546 cfg->rate = ftdi_sio_b4800; 547 break; 548 case 9600: 549 cfg->rate = ftdi_sio_b9600; 550 break; 551 case 19200: 552 cfg->rate = ftdi_sio_b19200; 553 break; 554 case 38400: 555 cfg->rate = ftdi_sio_b38400; 556 break; 557 case 57600: 558 cfg->rate = ftdi_sio_b57600; 559 break; 560 case 115200: 561 cfg->rate = ftdi_sio_b115200; 562 break; 563 default: 564 return (EINVAL); 565 } 566 break; 567 568 case UFTDI_TYPE_8U232AM: 569 if (uftdi_8u232am_getrate(t->c_ospeed, &cfg->rate)) { 570 return (EINVAL); 571 } 572 break; 573 } 574 575 if (t->c_cflag & CSTOPB) 576 cfg->lcr = FTDI_SIO_SET_DATA_STOP_BITS_2; 577 else 578 cfg->lcr = FTDI_SIO_SET_DATA_STOP_BITS_1; 579 580 if (t->c_cflag & PARENB) { 581 if (t->c_cflag & PARODD) { 582 cfg->lcr |= FTDI_SIO_SET_DATA_PARITY_ODD; 583 } else { 584 cfg->lcr |= FTDI_SIO_SET_DATA_PARITY_EVEN; 585 } 586 } else { 587 cfg->lcr |= FTDI_SIO_SET_DATA_PARITY_NONE; 588 } 589 590 switch (t->c_cflag & CSIZE) { 591 case CS5: 592 cfg->lcr |= FTDI_SIO_SET_DATA_BITS(5); 593 break; 594 595 case CS6: 596 cfg->lcr |= FTDI_SIO_SET_DATA_BITS(6); 597 break; 598 599 case CS7: 600 cfg->lcr |= FTDI_SIO_SET_DATA_BITS(7); 601 break; 602 603 case CS8: 604 cfg->lcr |= FTDI_SIO_SET_DATA_BITS(8); 605 break; 606 } 607 608 if (t->c_cflag & CRTSCTS) { 609 cfg->v_flow = FTDI_SIO_RTS_CTS_HS; 610 } else if (t->c_iflag & (IXON | IXOFF)) { 611 cfg->v_flow = FTDI_SIO_XON_XOFF_HS; 612 cfg->v_start = t->c_cc[VSTART]; 613 cfg->v_stop = t->c_cc[VSTOP]; 614 } else { 615 cfg->v_flow = FTDI_SIO_DISABLE_FLOW_CTRL; 616 } 617 618 return (0); 619} 620 621static int 622uftdi_pre_param(struct usb2_com_softc *ucom, struct termios *t) 623{ 624 struct uftdi_softc *sc = ucom->sc_parent; 625 struct uftdi_param_config cfg; 626 627 DPRINTF("\n"); 628 629 return (uftdi_set_parm_soft(t, &cfg, sc->sc_type)); 630} 631 632static void 633uftdi_cfg_param(struct usb2_com_softc *ucom, struct termios *t) 634{ 635 struct uftdi_softc *sc = ucom->sc_parent; 636 uint16_t wIndex = ucom->sc_portno; 637 struct uftdi_param_config cfg; 638 struct usb2_device_request req; 639 640 if (uftdi_set_parm_soft(t, &cfg, sc->sc_type)) { 641 /* should not happen */ 642 return; 643 } 644 sc->sc_last_lcr = cfg.lcr; 645 646 DPRINTF("\n"); 647 648 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 649 req.bRequest = FTDI_SIO_SET_BAUD_RATE; 650 USETW(req.wValue, cfg.rate); 651 USETW(req.wIndex, wIndex); 652 USETW(req.wLength, 0); 653 usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 654 &req, NULL, 0, 1000); 655 656 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 657 req.bRequest = FTDI_SIO_SET_DATA; 658 USETW(req.wValue, cfg.lcr); 659 USETW(req.wIndex, wIndex); 660 USETW(req.wLength, 0); 661 usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 662 &req, NULL, 0, 1000); 663 664 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 665 req.bRequest = FTDI_SIO_SET_FLOW_CTRL; 666 USETW2(req.wValue, cfg.v_stop, cfg.v_start); 667 USETW2(req.wIndex, cfg.v_flow, wIndex); 668 USETW(req.wLength, 0); 669 usb2_com_cfg_do_request(sc->sc_udev, &sc->sc_ucom, 670 &req, NULL, 0, 1000); 671} 672 673static void 674uftdi_cfg_get_status(struct usb2_com_softc *ucom, uint8_t *lsr, uint8_t *msr) 675{ 676 struct uftdi_softc *sc = ucom->sc_parent; 677 678 DPRINTF("msr=0x%02x lsr=0x%02x\n", 679 sc->sc_msr, sc->sc_lsr); 680 681 *msr = sc->sc_msr; 682 *lsr = sc->sc_lsr; 683} 684 685static void 686uftdi_start_read(struct usb2_com_softc *ucom) 687{ 688 struct uftdi_softc *sc = ucom->sc_parent; 689 690 usb2_transfer_start(sc->sc_xfer[UFTDI_BULK_DT_RD]); 691} 692 693static void 694uftdi_stop_read(struct usb2_com_softc *ucom) 695{ 696 struct uftdi_softc *sc = ucom->sc_parent; 697 698 usb2_transfer_stop(sc->sc_xfer[UFTDI_BULK_DT_RD]); 699} 700 701static void 702uftdi_start_write(struct usb2_com_softc *ucom) 703{ 704 struct uftdi_softc *sc = ucom->sc_parent; 705 706 usb2_transfer_start(sc->sc_xfer[UFTDI_BULK_DT_WR]); 707} 708 709static void 710uftdi_stop_write(struct usb2_com_softc *ucom) 711{ 712 struct uftdi_softc *sc = ucom->sc_parent; 713 714 usb2_transfer_stop(sc->sc_xfer[UFTDI_BULK_DT_WR]); 715} 716 717/*------------------------------------------------------------------------* 718 * uftdi_8u232am_getrate 719 * 720 * Return values: 721 * 0: Success 722 * Else: Failure 723 *------------------------------------------------------------------------*/ 724static uint8_t 725uftdi_8u232am_getrate(uint32_t speed, uint16_t *rate) 726{ 727 /* Table of the nearest even powers-of-2 for values 0..15. */ 728 static const uint8_t roundoff[16] = { 729 0, 2, 2, 4, 4, 4, 8, 8, 730 8, 8, 8, 8, 16, 16, 16, 16, 731 }; 732 uint32_t d; 733 uint32_t freq; 734 uint16_t result; 735 736 if ((speed < 178) || (speed > ((3000000 * 100) / 97))) 737 return (1); /* prevent numerical overflow */ 738 739 /* Special cases for 2M and 3M. */ 740 if ((speed >= ((3000000 * 100) / 103)) && 741 (speed <= ((3000000 * 100) / 97))) { 742 result = 0; 743 goto done; 744 } 745 if ((speed >= ((2000000 * 100) / 103)) && 746 (speed <= ((2000000 * 100) / 97))) { 747 result = 1; 748 goto done; 749 } 750 d = (FTDI_8U232AM_FREQ << 4) / speed; 751 d = (d & ~15) + roundoff[d & 15]; 752 753 if (d < FTDI_8U232AM_MIN_DIV) 754 d = FTDI_8U232AM_MIN_DIV; 755 else if (d > FTDI_8U232AM_MAX_DIV) 756 d = FTDI_8U232AM_MAX_DIV; 757 758 /* 759 * Calculate the frequency needed for "d" to exactly divide down to 760 * our target "speed", and check that the actual frequency is within 761 * 3% of this. 762 */ 763 freq = (speed * d); 764 if ((freq < ((FTDI_8U232AM_FREQ * 1600ULL) / 103)) || 765 (freq > ((FTDI_8U232AM_FREQ * 1600ULL) / 97))) 766 return (1); 767 768 /* 769 * Pack the divisor into the resultant value. The lower 14-bits 770 * hold the integral part, while the upper 2 bits encode the 771 * fractional component: either 0, 0.5, 0.25, or 0.125. 772 */ 773 result = (d >> 4); 774 if (d & 8) 775 result |= 0x4000; 776 else if (d & 4) 777 result |= 0x8000; 778 else if (d & 2) 779 result |= 0xc000; 780 781done: 782 *rate = result; 783 return (0); 784} 785