/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Thanks to Mentor Graphics for providing a reference driver for this USB chip * at their homepage. */ /* * This file contains the driver for the Mentor Graphics Inventra USB * 2.0 High Speed Dual-Role controller. * */ #ifdef USB_GLOBAL_INCLUDE_FILE #include USB_GLOBAL_INCLUDE_FILE #else #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define USB_DEBUG_VAR musbotgdebug #include #include #include #include #include #include #include #include #include #include #endif /* USB_GLOBAL_INCLUDE_FILE */ #include #define MUSBOTG_INTR_ENDPT 1 #define MUSBOTG_BUS2SC(bus) \ __containerof(bus, struct musbotg_softc, sc_bus) #define MUSBOTG_PC2SC(pc) \ MUSBOTG_BUS2SC(USB_DMATAG_TO_XROOT((pc)->tag_parent)->bus) #ifdef USB_DEBUG static int musbotgdebug = 0; static SYSCTL_NODE(_hw_usb, OID_AUTO, musbotg, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, "USB musbotg"); SYSCTL_INT(_hw_usb_musbotg, OID_AUTO, debug, CTLFLAG_RWTUN, &musbotgdebug, 0, "Debug level"); #endif #define MAX_NAK_TO 16 /* prototypes */ static const struct usb_bus_methods musbotg_bus_methods; static const struct usb_pipe_methods musbotg_device_bulk_methods; static const struct usb_pipe_methods musbotg_device_ctrl_methods; static const struct usb_pipe_methods musbotg_device_intr_methods; static const struct usb_pipe_methods musbotg_device_isoc_methods; /* Control transfers: Device mode */ static musbotg_cmd_t musbotg_dev_ctrl_setup_rx; static musbotg_cmd_t musbotg_dev_ctrl_data_rx; static musbotg_cmd_t musbotg_dev_ctrl_data_tx; static musbotg_cmd_t musbotg_dev_ctrl_status; /* Control transfers: Host mode */ static musbotg_cmd_t musbotg_host_ctrl_setup_tx; static musbotg_cmd_t musbotg_host_ctrl_data_rx; static musbotg_cmd_t musbotg_host_ctrl_data_tx; static musbotg_cmd_t musbotg_host_ctrl_status_rx; static musbotg_cmd_t musbotg_host_ctrl_status_tx; /* Bulk, Interrupt, Isochronous: Device mode */ static musbotg_cmd_t musbotg_dev_data_rx; static musbotg_cmd_t musbotg_dev_data_tx; /* Bulk, Interrupt, Isochronous: Host mode */ static musbotg_cmd_t musbotg_host_data_rx; static musbotg_cmd_t musbotg_host_data_tx; static void musbotg_device_done(struct usb_xfer *, usb_error_t); static void musbotg_do_poll(struct usb_bus *); static void musbotg_standard_done(struct usb_xfer *); static void musbotg_interrupt_poll(struct musbotg_softc *); static void musbotg_root_intr(struct musbotg_softc *); static int musbotg_channel_alloc(struct musbotg_softc *, struct musbotg_td *td, uint8_t); static void musbotg_channel_free(struct musbotg_softc *, struct musbotg_td *td); static void musbotg_ep_int_set(struct musbotg_softc *sc, int channel, int on); /* * Here is a configuration that the chip supports. */ static const struct usb_hw_ep_profile musbotg_ep_profile[1] = { [0] = { .max_in_frame_size = 64,/* fixed */ .max_out_frame_size = 64, /* fixed */ .is_simplex = 1, .support_control = 1, } }; static const struct musb_otg_ep_cfg musbotg_ep_default[] = { { .ep_end = 1, .ep_fifosz_shift = 12, .ep_fifosz_reg = MUSB2_VAL_FIFOSZ_4096 | MUSB2_MASK_FIFODB, }, { .ep_end = 7, .ep_fifosz_shift = 10, .ep_fifosz_reg = MUSB2_VAL_FIFOSZ_512 | MUSB2_MASK_FIFODB, }, { .ep_end = 15, .ep_fifosz_shift = 7, .ep_fifosz_reg = MUSB2_VAL_FIFOSZ_128, }, { .ep_end = -1, }, }; static int musbotg_channel_alloc(struct musbotg_softc *sc, struct musbotg_td *td, uint8_t is_tx) { int ch; int ep; ep = td->ep_no; /* In device mode each EP got its own channel */ if (sc->sc_mode == MUSB2_DEVICE_MODE) { musbotg_ep_int_set(sc, ep, 1); return (ep); } /* * All control transactions go through EP0 */ if (ep == 0) { if (sc->sc_channel_mask & (1 << 0)) return (-1); sc->sc_channel_mask |= (1 << 0); musbotg_ep_int_set(sc, ep, 1); return (0); } for (ch = sc->sc_ep_max; ch != 0; ch--) { if (sc->sc_channel_mask & (1 << ch)) continue; /* check FIFO size requirement */ if (is_tx) { if (td->max_frame_size > sc->sc_hw_ep_profile[ch].max_in_frame_size) continue; } else { if (td->max_frame_size > sc->sc_hw_ep_profile[ch].max_out_frame_size) continue; } sc->sc_channel_mask |= (1 << ch); musbotg_ep_int_set(sc, ch, 1); return (ch); } DPRINTFN(-1, "No available channels. Mask: %04x\n", sc->sc_channel_mask); return (-1); } static void musbotg_channel_free(struct musbotg_softc *sc, struct musbotg_td *td) { DPRINTFN(1, "ep_no=%d\n", td->channel); if (sc->sc_mode == MUSB2_DEVICE_MODE) return; if (td == NULL) return; if (td->channel == -1) return; musbotg_ep_int_set(sc, td->channel, 0); sc->sc_channel_mask &= ~(1 << td->channel); td->channel = -1; } static void musbotg_get_hw_ep_profile(struct usb_device *udev, const struct usb_hw_ep_profile **ppf, uint8_t ep_addr) { struct musbotg_softc *sc; sc = MUSBOTG_BUS2SC(udev->bus); if (ep_addr == 0) { /* control endpoint */ *ppf = musbotg_ep_profile; } else if (ep_addr <= sc->sc_ep_max) { /* other endpoints */ *ppf = sc->sc_hw_ep_profile + ep_addr; } else { *ppf = NULL; } } static void musbotg_clocks_on(struct musbotg_softc *sc) { if (sc->sc_flags.clocks_off && sc->sc_flags.port_powered) { DPRINTFN(4, "\n"); if (sc->sc_clocks_on) { (sc->sc_clocks_on) (sc->sc_clocks_arg); } sc->sc_flags.clocks_off = 0; /* XXX enable Transceiver */ } } static void musbotg_clocks_off(struct musbotg_softc *sc) { if (!sc->sc_flags.clocks_off) { DPRINTFN(4, "\n"); /* XXX disable Transceiver */ if (sc->sc_clocks_off) { (sc->sc_clocks_off) (sc->sc_clocks_arg); } sc->sc_flags.clocks_off = 1; } } static void musbotg_pull_common(struct musbotg_softc *sc, uint8_t on) { uint8_t temp; temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); if (on) temp |= MUSB2_MASK_SOFTC; else temp &= ~MUSB2_MASK_SOFTC; MUSB2_WRITE_1(sc, MUSB2_REG_POWER, temp); } static void musbotg_pull_up(struct musbotg_softc *sc) { /* pullup D+, if possible */ if (!sc->sc_flags.d_pulled_up && sc->sc_flags.port_powered) { sc->sc_flags.d_pulled_up = 1; musbotg_pull_common(sc, 1); } } static void musbotg_pull_down(struct musbotg_softc *sc) { /* pulldown D+, if possible */ if (sc->sc_flags.d_pulled_up) { sc->sc_flags.d_pulled_up = 0; musbotg_pull_common(sc, 0); } } static void musbotg_suspend_host(struct musbotg_softc *sc) { uint8_t temp; if (sc->sc_flags.status_suspend) { return; } temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); temp |= MUSB2_MASK_SUSPMODE; MUSB2_WRITE_1(sc, MUSB2_REG_POWER, temp); sc->sc_flags.status_suspend = 1; } static void musbotg_wakeup_host(struct musbotg_softc *sc) { uint8_t temp; if (!(sc->sc_flags.status_suspend)) { return; } temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); temp &= ~MUSB2_MASK_SUSPMODE; temp |= MUSB2_MASK_RESUME; MUSB2_WRITE_1(sc, MUSB2_REG_POWER, temp); /* wait 20 milliseconds */ /* Wait for reset to complete. */ usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 50); temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); temp &= ~MUSB2_MASK_RESUME; MUSB2_WRITE_1(sc, MUSB2_REG_POWER, temp); sc->sc_flags.status_suspend = 0; } static void musbotg_wakeup_peer(struct musbotg_softc *sc) { uint8_t temp; if (!(sc->sc_flags.status_suspend)) { return; } temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); temp |= MUSB2_MASK_RESUME; MUSB2_WRITE_1(sc, MUSB2_REG_POWER, temp); /* wait 8 milliseconds */ /* Wait for reset to complete. */ usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 125); temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); temp &= ~MUSB2_MASK_RESUME; MUSB2_WRITE_1(sc, MUSB2_REG_POWER, temp); } static void musbotg_set_address(struct musbotg_softc *sc, uint8_t addr) { DPRINTFN(4, "addr=%d\n", addr); addr &= 0x7F; MUSB2_WRITE_1(sc, MUSB2_REG_FADDR, addr); } static uint8_t musbotg_dev_ctrl_setup_rx(struct musbotg_td *td) { struct musbotg_softc *sc; struct usb_device_request req; uint16_t count; uint8_t csr; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 0); /* EP0 is busy, wait */ if (td->channel == -1) return (1); DPRINTFN(1, "ep_no=%d\n", td->channel); /* select endpoint 0 */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); /* * NOTE: If DATAEND is set we should not call the * callback, hence the status stage is not complete. */ if (csr & MUSB2_MASK_CSR0L_DATAEND) { /* do not stall at this point */ td->did_stall = 1; /* wait for interrupt */ DPRINTFN(1, "CSR0 DATAEND\n"); goto not_complete; } if (csr & MUSB2_MASK_CSR0L_SENTSTALL) { /* clear SENTSTALL */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); /* get latest status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); /* update EP0 state */ sc->sc_ep0_busy = 0; } if (csr & MUSB2_MASK_CSR0L_SETUPEND) { /* clear SETUPEND */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_SETUPEND_CLR); /* get latest status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); /* update EP0 state */ sc->sc_ep0_busy = 0; } if (sc->sc_ep0_busy) { DPRINTFN(1, "EP0 BUSY\n"); goto not_complete; } if (!(csr & MUSB2_MASK_CSR0L_RXPKTRDY)) { goto not_complete; } /* get the packet byte count */ count = MUSB2_READ_2(sc, MUSB2_REG_RXCOUNT); /* verify data length */ if (count != td->remainder) { DPRINTFN(1, "Invalid SETUP packet " "length, %d bytes\n", count); MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_RXPKTRDY_CLR); /* don't clear stall */ td->did_stall = 1; goto not_complete; } if (count != sizeof(req)) { DPRINTFN(1, "Unsupported SETUP packet " "length, %d bytes\n", count); MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_RXPKTRDY_CLR); /* don't clear stall */ td->did_stall = 1; goto not_complete; } /* clear did stall flag */ td->did_stall = 0; /* receive data */ bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), (void *)&req, sizeof(req)); /* copy data into real buffer */ usbd_copy_in(td->pc, 0, &req, sizeof(req)); td->offset = sizeof(req); td->remainder = 0; /* set pending command */ sc->sc_ep0_cmd = MUSB2_MASK_CSR0L_RXPKTRDY_CLR; /* we need set stall or dataend after this */ sc->sc_ep0_busy = 1; /* sneak peek the set address */ if ((req.bmRequestType == UT_WRITE_DEVICE) && (req.bRequest == UR_SET_ADDRESS)) { sc->sc_dv_addr = req.wValue[0] & 0x7F; } else { sc->sc_dv_addr = 0xFF; } musbotg_channel_free(sc, td); return (0); /* complete */ not_complete: /* abort any ongoing transfer */ if (!td->did_stall) { DPRINTFN(4, "stalling\n"); MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_SENDSTALL); td->did_stall = 1; } return (1); /* not complete */ } static uint8_t musbotg_host_ctrl_setup_tx(struct musbotg_td *td) { struct musbotg_softc *sc; struct usb_device_request req; uint8_t csr, csrh; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 1); /* EP0 is busy, wait */ if (td->channel == -1) return (1); DPRINTFN(1, "ep_no=%d\n", td->channel); /* select endpoint 0 */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); /* Not ready yet yet */ if (csr & MUSB2_MASK_CSR0L_TXPKTRDY) return (1); /* Failed */ if (csr & (MUSB2_MASK_CSR0L_RXSTALL | MUSB2_MASK_CSR0L_ERROR)) { /* Clear status bit */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); DPRINTFN(1, "error bit set, csr=0x%02x\n", csr); td->error = 1; } if (csr & MUSB2_MASK_CSR0L_NAKTIMO) { DPRINTFN(1, "NAK timeout\n"); if (csr & MUSB2_MASK_CSR0L_TXFIFONEMPTY) { csrh = MUSB2_READ_1(sc, MUSB2_REG_TXCSRH); csrh |= MUSB2_MASK_CSR0H_FFLUSH; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, csrh); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); if (csr & MUSB2_MASK_CSR0L_TXFIFONEMPTY) { csrh = MUSB2_READ_1(sc, MUSB2_REG_TXCSRH); csrh |= MUSB2_MASK_CSR0H_FFLUSH; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, csrh); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); } } csr &= ~MUSB2_MASK_CSR0L_NAKTIMO; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); td->error = 1; } if (td->error) { musbotg_channel_free(sc, td); return (0); } /* Fifo is not empty and there is no NAK timeout */ if (csr & MUSB2_MASK_CSR0L_TXPKTRDY) return (1); /* check if we are complete */ if (td->remainder == 0) { /* we are complete */ musbotg_channel_free(sc, td); return (0); } /* copy data into real buffer */ usbd_copy_out(td->pc, 0, &req, sizeof(req)); /* send data */ bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), (void *)&req, sizeof(req)); /* update offset and remainder */ td->offset += sizeof(req); td->remainder -= sizeof(req); MUSB2_WRITE_1(sc, MUSB2_REG_TXNAKLIMIT, MAX_NAK_TO); MUSB2_WRITE_1(sc, MUSB2_REG_TXFADDR(0), td->dev_addr); MUSB2_WRITE_1(sc, MUSB2_REG_TXHADDR(0), td->haddr); MUSB2_WRITE_1(sc, MUSB2_REG_TXHUBPORT(0), td->hport); MUSB2_WRITE_1(sc, MUSB2_REG_TXTI, td->transfer_type); /* write command */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_TXPKTRDY | MUSB2_MASK_CSR0L_SETUPPKT); /* Just to be consistent, not used above */ td->transaction_started = 1; return (1); /* in progress */ } /* Control endpoint only data handling functions (RX/TX/SYNC) */ static uint8_t musbotg_dev_ctrl_data_rx(struct musbotg_td *td) { struct usb_page_search buf_res; struct musbotg_softc *sc; uint16_t count; uint8_t csr; uint8_t got_short; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); /* select endpoint 0 */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); /* check if a command is pending */ if (sc->sc_ep0_cmd) { MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, sc->sc_ep0_cmd); sc->sc_ep0_cmd = 0; } /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); got_short = 0; if (csr & (MUSB2_MASK_CSR0L_SETUPEND | MUSB2_MASK_CSR0L_SENTSTALL)) { if (td->remainder == 0) { /* * We are actually complete and have * received the next SETUP */ DPRINTFN(4, "faking complete\n"); return (0); /* complete */ } /* * USB Host Aborted the transfer. */ td->error = 1; return (0); /* complete */ } if (!(csr & MUSB2_MASK_CSR0L_RXPKTRDY)) { return (1); /* not complete */ } /* get the packet byte count */ count = MUSB2_READ_2(sc, MUSB2_REG_RXCOUNT); /* verify the packet byte count */ if (count != td->max_frame_size) { if (count < td->max_frame_size) { /* we have a short packet */ td->short_pkt = 1; got_short = 1; } else { /* invalid USB packet */ td->error = 1; return (0); /* we are complete */ } } /* verify the packet byte count */ if (count > td->remainder) { /* invalid USB packet */ td->error = 1; return (0); /* we are complete */ } while (count > 0) { uint32_t temp; usbd_get_page(td->pc, td->offset, &buf_res); /* get correct length */ if (buf_res.length > count) { buf_res.length = count; } /* check for unaligned memory address */ if (USB_P2U(buf_res.buffer) & 3) { temp = count & ~3; if (temp) { /* receive data 4 bytes at a time */ bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), sc->sc_bounce_buf, temp / 4); } temp = count & 3; if (temp) { /* receive data 1 byte at a time */ bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), (void *)(&sc->sc_bounce_buf[count / 4]), temp); } usbd_copy_in(td->pc, td->offset, sc->sc_bounce_buf, count); /* update offset and remainder */ td->offset += count; td->remainder -= count; break; } /* check if we can optimise */ if (buf_res.length >= 4) { /* receive data 4 bytes at a time */ bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length / 4); temp = buf_res.length & ~3; /* update counters */ count -= temp; td->offset += temp; td->remainder -= temp; continue; } /* receive data */ bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length); /* update counters */ count -= buf_res.length; td->offset += buf_res.length; td->remainder -= buf_res.length; } /* check if we are complete */ if ((td->remainder == 0) || got_short) { if (td->short_pkt) { /* we are complete */ sc->sc_ep0_cmd = MUSB2_MASK_CSR0L_RXPKTRDY_CLR; return (0); } /* else need to receive a zero length packet */ } /* write command - need more data */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_RXPKTRDY_CLR); return (1); /* not complete */ } static uint8_t musbotg_dev_ctrl_data_tx(struct musbotg_td *td) { struct usb_page_search buf_res; struct musbotg_softc *sc; uint16_t count; uint8_t csr; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); /* select endpoint 0 */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); /* check if a command is pending */ if (sc->sc_ep0_cmd) { MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, sc->sc_ep0_cmd); sc->sc_ep0_cmd = 0; } /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); if (csr & (MUSB2_MASK_CSR0L_SETUPEND | MUSB2_MASK_CSR0L_SENTSTALL)) { /* * The current transfer was aborted * by the USB Host */ td->error = 1; return (0); /* complete */ } if (csr & MUSB2_MASK_CSR0L_TXPKTRDY) { return (1); /* not complete */ } count = td->max_frame_size; if (td->remainder < count) { /* we have a short packet */ td->short_pkt = 1; count = td->remainder; } while (count > 0) { uint32_t temp; usbd_get_page(td->pc, td->offset, &buf_res); /* get correct length */ if (buf_res.length > count) { buf_res.length = count; } /* check for unaligned memory address */ if (USB_P2U(buf_res.buffer) & 3) { usbd_copy_out(td->pc, td->offset, sc->sc_bounce_buf, count); temp = count & ~3; if (temp) { /* transmit data 4 bytes at a time */ bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), sc->sc_bounce_buf, temp / 4); } temp = count & 3; if (temp) { /* receive data 1 byte at a time */ bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), ((void *)&sc->sc_bounce_buf[count / 4]), temp); } /* update offset and remainder */ td->offset += count; td->remainder -= count; break; } /* check if we can optimise */ if (buf_res.length >= 4) { /* transmit data 4 bytes at a time */ bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length / 4); temp = buf_res.length & ~3; /* update counters */ count -= temp; td->offset += temp; td->remainder -= temp; continue; } /* transmit data */ bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length); /* update counters */ count -= buf_res.length; td->offset += buf_res.length; td->remainder -= buf_res.length; } /* check remainder */ if (td->remainder == 0) { if (td->short_pkt) { sc->sc_ep0_cmd = MUSB2_MASK_CSR0L_TXPKTRDY; return (0); /* complete */ } /* else we need to transmit a short packet */ } /* write command */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_TXPKTRDY); return (1); /* not complete */ } static uint8_t musbotg_host_ctrl_data_rx(struct musbotg_td *td) { struct usb_page_search buf_res; struct musbotg_softc *sc; uint16_t count; uint8_t csr; uint8_t got_short; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 0); /* EP0 is busy, wait */ if (td->channel == -1) return (1); DPRINTFN(1, "ep_no=%d\n", td->channel); /* select endpoint 0 */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); got_short = 0; if (!td->transaction_started) { td->transaction_started = 1; MUSB2_WRITE_1(sc, MUSB2_REG_RXNAKLIMIT, MAX_NAK_TO); MUSB2_WRITE_1(sc, MUSB2_REG_RXFADDR(0), td->dev_addr); MUSB2_WRITE_1(sc, MUSB2_REG_RXHADDR(0), td->haddr); MUSB2_WRITE_1(sc, MUSB2_REG_RXHUBPORT(0), td->hport); MUSB2_WRITE_1(sc, MUSB2_REG_RXTI, td->transfer_type); MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_REQPKT); return (1); } if (csr & MUSB2_MASK_CSR0L_NAKTIMO) { csr &= ~MUSB2_MASK_CSR0L_REQPKT; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); csr &= ~MUSB2_MASK_CSR0L_NAKTIMO; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); td->error = 1; } /* Failed */ if (csr & (MUSB2_MASK_CSR0L_RXSTALL | MUSB2_MASK_CSR0L_ERROR)) { /* Clear status bit */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); DPRINTFN(1, "error bit set, csr=0x%02x\n", csr); td->error = 1; } if (td->error) { musbotg_channel_free(sc, td); return (0); /* we are complete */ } if (!(csr & MUSB2_MASK_CSR0L_RXPKTRDY)) return (1); /* not yet */ /* get the packet byte count */ count = MUSB2_READ_2(sc, MUSB2_REG_RXCOUNT); /* verify the packet byte count */ if (count != td->max_frame_size) { if (count < td->max_frame_size) { /* we have a short packet */ td->short_pkt = 1; got_short = 1; } else { /* invalid USB packet */ td->error = 1; musbotg_channel_free(sc, td); return (0); /* we are complete */ } } /* verify the packet byte count */ if (count > td->remainder) { /* invalid USB packet */ td->error = 1; musbotg_channel_free(sc, td); return (0); /* we are complete */ } while (count > 0) { uint32_t temp; usbd_get_page(td->pc, td->offset, &buf_res); /* get correct length */ if (buf_res.length > count) { buf_res.length = count; } /* check for unaligned memory address */ if (USB_P2U(buf_res.buffer) & 3) { temp = count & ~3; if (temp) { /* receive data 4 bytes at a time */ bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), sc->sc_bounce_buf, temp / 4); } temp = count & 3; if (temp) { /* receive data 1 byte at a time */ bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), (void *)(&sc->sc_bounce_buf[count / 4]), temp); } usbd_copy_in(td->pc, td->offset, sc->sc_bounce_buf, count); /* update offset and remainder */ td->offset += count; td->remainder -= count; break; } /* check if we can optimise */ if (buf_res.length >= 4) { /* receive data 4 bytes at a time */ bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length / 4); temp = buf_res.length & ~3; /* update counters */ count -= temp; td->offset += temp; td->remainder -= temp; continue; } /* receive data */ bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length); /* update counters */ count -= buf_res.length; td->offset += buf_res.length; td->remainder -= buf_res.length; } csr &= ~MUSB2_MASK_CSR0L_RXPKTRDY; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); /* check if we are complete */ if ((td->remainder == 0) || got_short) { if (td->short_pkt) { /* we are complete */ musbotg_channel_free(sc, td); return (0); } /* else need to receive a zero length packet */ } td->transaction_started = 1; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_REQPKT); return (1); /* not complete */ } static uint8_t musbotg_host_ctrl_data_tx(struct musbotg_td *td) { struct usb_page_search buf_res; struct musbotg_softc *sc; uint16_t count; uint8_t csr, csrh; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 1); /* No free EPs */ if (td->channel == -1) return (1); DPRINTFN(1, "ep_no=%d\n", td->channel); /* select endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); if (csr & (MUSB2_MASK_CSR0L_RXSTALL | MUSB2_MASK_CSR0L_ERROR)) { /* clear status bits */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); td->error = 1; } if (csr & MUSB2_MASK_CSR0L_NAKTIMO ) { if (csr & MUSB2_MASK_CSR0L_TXFIFONEMPTY) { csrh = MUSB2_READ_1(sc, MUSB2_REG_TXCSRH); csrh |= MUSB2_MASK_CSR0H_FFLUSH; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, csrh); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); if (csr & MUSB2_MASK_CSR0L_TXFIFONEMPTY) { csrh = MUSB2_READ_1(sc, MUSB2_REG_TXCSRH); csrh |= MUSB2_MASK_CSR0H_FFLUSH; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, csrh); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); } } csr &= ~MUSB2_MASK_CSR0L_NAKTIMO; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); td->error = 1; } if (td->error) { musbotg_channel_free(sc, td); return (0); /* complete */ } /* * Wait while FIFO is empty. * Do not flush it because it will cause transactions * with size more then packet size. It might upset * some devices */ if (csr & MUSB2_MASK_CSR0L_TXFIFONEMPTY) return (1); /* Packet still being processed */ if (csr & MUSB2_MASK_CSR0L_TXPKTRDY) return (1); if (td->transaction_started) { /* check remainder */ if (td->remainder == 0) { if (td->short_pkt) { musbotg_channel_free(sc, td); return (0); /* complete */ } /* else we need to transmit a short packet */ } /* We're not complete - more transactions required */ td->transaction_started = 0; } /* check for short packet */ count = td->max_frame_size; if (td->remainder < count) { /* we have a short packet */ td->short_pkt = 1; count = td->remainder; } while (count > 0) { uint32_t temp; usbd_get_page(td->pc, td->offset, &buf_res); /* get correct length */ if (buf_res.length > count) { buf_res.length = count; } /* check for unaligned memory address */ if (USB_P2U(buf_res.buffer) & 3) { usbd_copy_out(td->pc, td->offset, sc->sc_bounce_buf, count); temp = count & ~3; if (temp) { /* transmit data 4 bytes at a time */ bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), sc->sc_bounce_buf, temp / 4); } temp = count & 3; if (temp) { /* receive data 1 byte at a time */ bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), ((void *)&sc->sc_bounce_buf[count / 4]), temp); } /* update offset and remainder */ td->offset += count; td->remainder -= count; break; } /* check if we can optimise */ if (buf_res.length >= 4) { /* transmit data 4 bytes at a time */ bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length / 4); temp = buf_res.length & ~3; /* update counters */ count -= temp; td->offset += temp; td->remainder -= temp; continue; } /* transmit data */ bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(0), buf_res.buffer, buf_res.length); /* update counters */ count -= buf_res.length; td->offset += buf_res.length; td->remainder -= buf_res.length; } /* Function address */ MUSB2_WRITE_1(sc, MUSB2_REG_TXFADDR(0), td->dev_addr); MUSB2_WRITE_1(sc, MUSB2_REG_TXHADDR(0), td->haddr); MUSB2_WRITE_1(sc, MUSB2_REG_TXHUBPORT(0), td->hport); MUSB2_WRITE_1(sc, MUSB2_REG_TXTI, td->transfer_type); /* TX NAK timeout */ MUSB2_WRITE_1(sc, MUSB2_REG_TXNAKLIMIT, MAX_NAK_TO); /* write command */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_TXPKTRDY); td->transaction_started = 1; return (1); /* not complete */ } static uint8_t musbotg_dev_ctrl_status(struct musbotg_td *td) { struct musbotg_softc *sc; uint8_t csr; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); /* select endpoint 0 */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); if (sc->sc_ep0_busy) { sc->sc_ep0_busy = 0; sc->sc_ep0_cmd |= MUSB2_MASK_CSR0L_DATAEND; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, sc->sc_ep0_cmd); sc->sc_ep0_cmd = 0; } /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); if (csr & MUSB2_MASK_CSR0L_DATAEND) { /* wait for interrupt */ return (1); /* not complete */ } if (sc->sc_dv_addr != 0xFF) { /* write function address */ musbotg_set_address(sc, sc->sc_dv_addr); } musbotg_channel_free(sc, td); return (0); /* complete */ } static uint8_t musbotg_host_ctrl_status_rx(struct musbotg_td *td) { struct musbotg_softc *sc; uint8_t csr, csrh; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 0); /* EP0 is busy, wait */ if (td->channel == -1) return (1); DPRINTFN(1, "ep_no=%d\n", td->channel); /* select endpoint 0 */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); if (!td->transaction_started) { MUSB2_WRITE_1(sc, MUSB2_REG_RXFADDR(0), td->dev_addr); MUSB2_WRITE_1(sc, MUSB2_REG_RXHADDR(0), td->haddr); MUSB2_WRITE_1(sc, MUSB2_REG_RXHUBPORT(0), td->hport); MUSB2_WRITE_1(sc, MUSB2_REG_RXTI, td->transfer_type); /* RX NAK timeout */ MUSB2_WRITE_1(sc, MUSB2_REG_RXNAKLIMIT, MAX_NAK_TO); td->transaction_started = 1; /* Disable PING */ csrh = MUSB2_READ_1(sc, MUSB2_REG_RXCSRH); csrh |= MUSB2_MASK_CSR0H_PING_DIS; MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRH, csrh); /* write command */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_STATUSPKT | MUSB2_MASK_CSR0L_REQPKT); return (1); /* Just started */ } csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "IN STATUS csr=0x%02x\n", csr); if (csr & MUSB2_MASK_CSR0L_RXPKTRDY) { MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_RXPKTRDY_CLR); musbotg_channel_free(sc, td); return (0); /* complete */ } if (csr & MUSB2_MASK_CSR0L_NAKTIMO) { csr &= ~ (MUSB2_MASK_CSR0L_STATUSPKT | MUSB2_MASK_CSR0L_REQPKT); MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); csr &= ~MUSB2_MASK_CSR0L_NAKTIMO; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); td->error = 1; } /* Failed */ if (csr & (MUSB2_MASK_CSR0L_RXSTALL | MUSB2_MASK_CSR0L_ERROR)) { /* Clear status bit */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); DPRINTFN(1, "error bit set, csr=0x%02x\n", csr); td->error = 1; } if (td->error) { musbotg_channel_free(sc, td); return (0); } return (1); /* Not ready yet */ } static uint8_t musbotg_host_ctrl_status_tx(struct musbotg_td *td) { struct musbotg_softc *sc; uint8_t csr; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 1); /* EP0 is busy, wait */ if (td->channel == -1) return (1); DPRINTFN(1, "ep_no=%d/%d [%d@%d.%d/%02x]\n", td->channel, td->transaction_started, td->dev_addr,td->haddr,td->hport, td->transfer_type); /* select endpoint 0 */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); /* Not yet */ if (csr & MUSB2_MASK_CSR0L_TXPKTRDY) return (1); /* Failed */ if (csr & (MUSB2_MASK_CSR0L_RXSTALL | MUSB2_MASK_CSR0L_ERROR)) { /* Clear status bit */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); DPRINTFN(1, "error bit set, csr=0x%02x\n", csr); td->error = 1; musbotg_channel_free(sc, td); return (0); /* complete */ } if (td->transaction_started) { musbotg_channel_free(sc, td); return (0); /* complete */ } MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRH, MUSB2_MASK_CSR0H_PING_DIS); MUSB2_WRITE_1(sc, MUSB2_REG_TXFADDR(0), td->dev_addr); MUSB2_WRITE_1(sc, MUSB2_REG_TXHADDR(0), td->haddr); MUSB2_WRITE_1(sc, MUSB2_REG_TXHUBPORT(0), td->hport); MUSB2_WRITE_1(sc, MUSB2_REG_TXTI, td->transfer_type); /* TX NAK timeout */ MUSB2_WRITE_1(sc, MUSB2_REG_TXNAKLIMIT, MAX_NAK_TO); td->transaction_started = 1; /* write command */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSR0L_STATUSPKT | MUSB2_MASK_CSR0L_TXPKTRDY); return (1); /* wait for interrupt */ } static uint8_t musbotg_dev_data_rx(struct musbotg_td *td) { struct usb_page_search buf_res; struct musbotg_softc *sc; uint16_t count; uint8_t csr; uint8_t to; uint8_t got_short; to = 8; /* don't loop forever! */ got_short = 0; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 0); /* EP0 is busy, wait */ if (td->channel == -1) return (1); /* select endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, td->channel); repeat: /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); /* clear overrun */ if (csr & MUSB2_MASK_CSRL_RXOVERRUN) { /* make sure we don't clear "RXPKTRDY" */ MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, MUSB2_MASK_CSRL_RXPKTRDY); } /* check status */ if (!(csr & MUSB2_MASK_CSRL_RXPKTRDY)) return (1); /* not complete */ /* get the packet byte count */ count = MUSB2_READ_2(sc, MUSB2_REG_RXCOUNT); DPRINTFN(4, "count=0x%04x\n", count); /* * Check for short or invalid packet: */ if (count != td->max_frame_size) { if (count < td->max_frame_size) { /* we have a short packet */ td->short_pkt = 1; got_short = 1; } else { /* invalid USB packet */ td->error = 1; musbotg_channel_free(sc, td); return (0); /* we are complete */ } } /* verify the packet byte count */ if (count > td->remainder) { /* invalid USB packet */ td->error = 1; musbotg_channel_free(sc, td); return (0); /* we are complete */ } while (count > 0) { uint32_t temp; usbd_get_page(td->pc, td->offset, &buf_res); /* get correct length */ if (buf_res.length > count) { buf_res.length = count; } /* check for unaligned memory address */ if (USB_P2U(buf_res.buffer) & 3) { temp = count & ~3; if (temp) { /* receive data 4 bytes at a time */ bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), sc->sc_bounce_buf, temp / 4); } temp = count & 3; if (temp) { /* receive data 1 byte at a time */ bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), ((void *)&sc->sc_bounce_buf[count / 4]), temp); } usbd_copy_in(td->pc, td->offset, sc->sc_bounce_buf, count); /* update offset and remainder */ td->offset += count; td->remainder -= count; break; } /* check if we can optimise */ if (buf_res.length >= 4) { /* receive data 4 bytes at a time */ bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), buf_res.buffer, buf_res.length / 4); temp = buf_res.length & ~3; /* update counters */ count -= temp; td->offset += temp; td->remainder -= temp; continue; } /* receive data */ bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), buf_res.buffer, buf_res.length); /* update counters */ count -= buf_res.length; td->offset += buf_res.length; td->remainder -= buf_res.length; } /* clear status bits */ MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 0); /* check if we are complete */ if ((td->remainder == 0) || got_short) { if (td->short_pkt) { /* we are complete */ musbotg_channel_free(sc, td); return (0); } /* else need to receive a zero length packet */ } if (--to) { goto repeat; } return (1); /* not complete */ } static uint8_t musbotg_dev_data_tx(struct musbotg_td *td) { struct usb_page_search buf_res; struct musbotg_softc *sc; uint16_t count; uint8_t csr; uint8_t to; to = 8; /* don't loop forever! */ /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 1); /* EP0 is busy, wait */ if (td->channel == -1) return (1); /* select endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, td->channel); repeat: /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); if (csr & (MUSB2_MASK_CSRL_TXINCOMP | MUSB2_MASK_CSRL_TXUNDERRUN)) { /* clear status bits */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); } if (csr & MUSB2_MASK_CSRL_TXPKTRDY) { return (1); /* not complete */ } /* check for short packet */ count = td->max_frame_size; if (td->remainder < count) { /* we have a short packet */ td->short_pkt = 1; count = td->remainder; } while (count > 0) { uint32_t temp; usbd_get_page(td->pc, td->offset, &buf_res); /* get correct length */ if (buf_res.length > count) { buf_res.length = count; } /* check for unaligned memory address */ if (USB_P2U(buf_res.buffer) & 3) { usbd_copy_out(td->pc, td->offset, sc->sc_bounce_buf, count); temp = count & ~3; if (temp) { /* transmit data 4 bytes at a time */ bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), sc->sc_bounce_buf, temp / 4); } temp = count & 3; if (temp) { /* receive data 1 byte at a time */ bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), ((void *)&sc->sc_bounce_buf[count / 4]), temp); } /* update offset and remainder */ td->offset += count; td->remainder -= count; break; } /* check if we can optimise */ if (buf_res.length >= 4) { /* transmit data 4 bytes at a time */ bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), buf_res.buffer, buf_res.length / 4); temp = buf_res.length & ~3; /* update counters */ count -= temp; td->offset += temp; td->remainder -= temp; continue; } /* transmit data */ bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), buf_res.buffer, buf_res.length); /* update counters */ count -= buf_res.length; td->offset += buf_res.length; td->remainder -= buf_res.length; } /* Max packet size */ MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, td->reg_max_packet); /* write command */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSRL_TXPKTRDY); /* check remainder */ if (td->remainder == 0) { if (td->short_pkt) { musbotg_channel_free(sc, td); return (0); /* complete */ } /* else we need to transmit a short packet */ } if (--to) { goto repeat; } return (1); /* not complete */ } static uint8_t musbotg_host_data_rx(struct musbotg_td *td) { struct usb_page_search buf_res; struct musbotg_softc *sc; uint16_t count; uint8_t csr, csrh; uint8_t to; uint8_t got_short; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 0); /* No free EPs */ if (td->channel == -1) return (1); DPRINTFN(1, "ep_no=%d\n", td->channel); to = 8; /* don't loop forever! */ got_short = 0; /* select endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, td->channel); repeat: /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); if (!td->transaction_started) { /* Function address */ MUSB2_WRITE_1(sc, MUSB2_REG_RXFADDR(td->channel), td->dev_addr); /* SPLIT transaction */ MUSB2_WRITE_1(sc, MUSB2_REG_RXHADDR(td->channel), td->haddr); MUSB2_WRITE_1(sc, MUSB2_REG_RXHUBPORT(td->channel), td->hport); /* RX NAK timeout */ if (td->transfer_type & MUSB2_MASK_TI_PROTO_ISOC) MUSB2_WRITE_1(sc, MUSB2_REG_RXNAKLIMIT, 0); else MUSB2_WRITE_1(sc, MUSB2_REG_RXNAKLIMIT, MAX_NAK_TO); /* Protocol, speed, device endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_RXTI, td->transfer_type); /* Max packet size */ MUSB2_WRITE_2(sc, MUSB2_REG_RXMAXP, td->reg_max_packet); /* Data Toggle */ csrh = MUSB2_READ_1(sc, MUSB2_REG_RXCSRH); DPRINTFN(4, "csrh=0x%02x\n", csrh); csrh |= MUSB2_MASK_CSRH_RXDT_WREN; if (td->toggle) csrh |= MUSB2_MASK_CSRH_RXDT_VAL; else csrh &= ~MUSB2_MASK_CSRH_RXDT_VAL; /* Set data toggle */ MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRH, csrh); /* write command */ MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, MUSB2_MASK_CSRL_RXREQPKT); td->transaction_started = 1; return (1); } /* clear NAK timeout */ if (csr & MUSB2_MASK_CSRL_RXNAKTO) { DPRINTFN(4, "NAK Timeout\n"); if (csr & MUSB2_MASK_CSRL_RXREQPKT) { csr &= ~MUSB2_MASK_CSRL_RXREQPKT; MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, csr); csr &= ~MUSB2_MASK_CSRL_RXNAKTO; MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, csr); } td->error = 1; } if (csr & MUSB2_MASK_CSRL_RXERROR) { DPRINTFN(4, "RXERROR\n"); td->error = 1; } if (csr & MUSB2_MASK_CSRL_RXSTALL) { DPRINTFN(4, "RXSTALL\n"); td->error = 1; } if (td->error) { musbotg_channel_free(sc, td); return (0); /* we are complete */ } if (!(csr & MUSB2_MASK_CSRL_RXPKTRDY)) { /* No data available yet */ return (1); } td->toggle ^= 1; /* get the packet byte count */ count = MUSB2_READ_2(sc, MUSB2_REG_RXCOUNT); DPRINTFN(4, "count=0x%04x\n", count); /* * Check for short or invalid packet: */ if (count != td->max_frame_size) { if (count < td->max_frame_size) { /* we have a short packet */ td->short_pkt = 1; got_short = 1; } else { /* invalid USB packet */ td->error = 1; musbotg_channel_free(sc, td); return (0); /* we are complete */ } } /* verify the packet byte count */ if (count > td->remainder) { /* invalid USB packet */ td->error = 1; musbotg_channel_free(sc, td); return (0); /* we are complete */ } while (count > 0) { uint32_t temp; usbd_get_page(td->pc, td->offset, &buf_res); /* get correct length */ if (buf_res.length > count) { buf_res.length = count; } /* check for unaligned memory address */ if (USB_P2U(buf_res.buffer) & 3) { temp = count & ~3; if (temp) { /* receive data 4 bytes at a time */ bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), sc->sc_bounce_buf, temp / 4); } temp = count & 3; if (temp) { /* receive data 1 byte at a time */ bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), ((void *)&sc->sc_bounce_buf[count / 4]), temp); } usbd_copy_in(td->pc, td->offset, sc->sc_bounce_buf, count); /* update offset and remainder */ td->offset += count; td->remainder -= count; break; } /* check if we can optimise */ if (buf_res.length >= 4) { /* receive data 4 bytes at a time */ bus_space_read_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), buf_res.buffer, buf_res.length / 4); temp = buf_res.length & ~3; /* update counters */ count -= temp; td->offset += temp; td->remainder -= temp; continue; } /* receive data */ bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), buf_res.buffer, buf_res.length); /* update counters */ count -= buf_res.length; td->offset += buf_res.length; td->remainder -= buf_res.length; } /* clear status bits */ MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 0); /* check if we are complete */ if ((td->remainder == 0) || got_short) { if (td->short_pkt) { /* we are complete */ musbotg_channel_free(sc, td); return (0); } /* else need to receive a zero length packet */ } /* Reset transaction state and restart */ td->transaction_started = 0; if (--to) goto repeat; return (1); /* not complete */ } static uint8_t musbotg_host_data_tx(struct musbotg_td *td) { struct usb_page_search buf_res; struct musbotg_softc *sc; uint16_t count; uint8_t csr, csrh; /* get pointer to softc */ sc = MUSBOTG_PC2SC(td->pc); if (td->channel == -1) td->channel = musbotg_channel_alloc(sc, td, 1); /* No free EPs */ if (td->channel == -1) return (1); DPRINTFN(1, "ep_no=%d\n", td->channel); /* select endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, td->channel); /* read out FIFO status */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); DPRINTFN(4, "csr=0x%02x\n", csr); if (csr & (MUSB2_MASK_CSRL_TXSTALLED | MUSB2_MASK_CSRL_TXERROR)) { /* clear status bits */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); td->error = 1; musbotg_channel_free(sc, td); return (0); /* complete */ } if (csr & MUSB2_MASK_CSRL_TXNAKTO) { /* * Flush TX FIFO before clearing NAK TO */ if (csr & MUSB2_MASK_CSRL_TXFIFONEMPTY) { csr |= MUSB2_MASK_CSRL_TXFFLUSH; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); if (csr & MUSB2_MASK_CSRL_TXFIFONEMPTY) { csr |= MUSB2_MASK_CSRL_TXFFLUSH; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); } } csr &= ~MUSB2_MASK_CSRL_TXNAKTO; MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, csr); td->error = 1; musbotg_channel_free(sc, td); return (0); /* complete */ } /* * Wait while FIFO is empty. * Do not flush it because it will cause transactions * with size more then packet size. It might upset * some devices */ if (csr & MUSB2_MASK_CSRL_TXFIFONEMPTY) return (1); /* Packet still being processed */ if (csr & MUSB2_MASK_CSRL_TXPKTRDY) return (1); if (td->transaction_started) { /* check remainder */ if (td->remainder == 0) { if (td->short_pkt) { musbotg_channel_free(sc, td); return (0); /* complete */ } /* else we need to transmit a short packet */ } /* We're not complete - more transactions required */ td->transaction_started = 0; } /* check for short packet */ count = td->max_frame_size; if (td->remainder < count) { /* we have a short packet */ td->short_pkt = 1; count = td->remainder; } while (count > 0) { uint32_t temp; usbd_get_page(td->pc, td->offset, &buf_res); /* get correct length */ if (buf_res.length > count) { buf_res.length = count; } /* check for unaligned memory address */ if (USB_P2U(buf_res.buffer) & 3) { usbd_copy_out(td->pc, td->offset, sc->sc_bounce_buf, count); temp = count & ~3; if (temp) { /* transmit data 4 bytes at a time */ bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), sc->sc_bounce_buf, temp / 4); } temp = count & 3; if (temp) { /* receive data 1 byte at a time */ bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), ((void *)&sc->sc_bounce_buf[count / 4]), temp); } /* update offset and remainder */ td->offset += count; td->remainder -= count; break; } /* check if we can optimise */ if (buf_res.length >= 4) { /* transmit data 4 bytes at a time */ bus_space_write_multi_4(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), buf_res.buffer, buf_res.length / 4); temp = buf_res.length & ~3; /* update counters */ count -= temp; td->offset += temp; td->remainder -= temp; continue; } /* transmit data */ bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, MUSB2_REG_EPFIFO(td->channel), buf_res.buffer, buf_res.length); /* update counters */ count -= buf_res.length; td->offset += buf_res.length; td->remainder -= buf_res.length; } /* Function address */ MUSB2_WRITE_1(sc, MUSB2_REG_TXFADDR(td->channel), td->dev_addr); /* SPLIT transaction */ MUSB2_WRITE_1(sc, MUSB2_REG_TXHADDR(td->channel), td->haddr); MUSB2_WRITE_1(sc, MUSB2_REG_TXHUBPORT(td->channel), td->hport); /* TX NAK timeout */ if (td->transfer_type & MUSB2_MASK_TI_PROTO_ISOC) MUSB2_WRITE_1(sc, MUSB2_REG_TXNAKLIMIT, 0); else MUSB2_WRITE_1(sc, MUSB2_REG_TXNAKLIMIT, MAX_NAK_TO); /* Protocol, speed, device endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_TXTI, td->transfer_type); /* Max packet size */ MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, td->reg_max_packet); if (!td->transaction_started) { csrh = MUSB2_READ_1(sc, MUSB2_REG_TXCSRH); DPRINTFN(4, "csrh=0x%02x\n", csrh); csrh |= MUSB2_MASK_CSRH_TXDT_WREN; if (td->toggle) csrh |= MUSB2_MASK_CSRH_TXDT_VAL; else csrh &= ~MUSB2_MASK_CSRH_TXDT_VAL; /* Set data toggle */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, csrh); } /* write command */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSRL_TXPKTRDY); /* Update Data Toggle */ td->toggle ^= 1; td->transaction_started = 1; return (1); /* not complete */ } static uint8_t musbotg_xfer_do_fifo(struct usb_xfer *xfer) { struct musbotg_td *td; DPRINTFN(8, "\n"); td = xfer->td_transfer_cache; while (1) { if ((td->func) (td)) { /* operation in progress */ break; } if (((void *)td) == xfer->td_transfer_last) { goto done; } if (td->error) { goto done; } else if (td->remainder > 0) { /* * We had a short transfer. If there is no alternate * next, stop processing ! */ if (!td->alt_next) { goto done; } } /* * Fetch the next transfer descriptor and transfer * some flags to the next transfer descriptor */ td = td->obj_next; xfer->td_transfer_cache = td; } return (1); /* not complete */ done: /* compute all actual lengths */ musbotg_standard_done(xfer); return (0); /* complete */ } static void musbotg_interrupt_poll(struct musbotg_softc *sc) { struct usb_xfer *xfer; repeat: TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { if (!musbotg_xfer_do_fifo(xfer)) { /* queue has been modified */ goto repeat; } } } void musbotg_vbus_interrupt(struct musbotg_softc *sc, uint8_t is_on) { DPRINTFN(4, "vbus = %u\n", is_on); USB_BUS_LOCK(&sc->sc_bus); if (is_on) { if (!sc->sc_flags.status_vbus) { sc->sc_flags.status_vbus = 1; /* complete root HUB interrupt endpoint */ musbotg_root_intr(sc); } } else { if (sc->sc_flags.status_vbus) { sc->sc_flags.status_vbus = 0; sc->sc_flags.status_bus_reset = 0; sc->sc_flags.status_suspend = 0; sc->sc_flags.change_suspend = 0; sc->sc_flags.change_connect = 1; /* complete root HUB interrupt endpoint */ musbotg_root_intr(sc); } } USB_BUS_UNLOCK(&sc->sc_bus); } void musbotg_connect_interrupt(struct musbotg_softc *sc) { USB_BUS_LOCK(&sc->sc_bus); sc->sc_flags.change_connect = 1; /* complete root HUB interrupt endpoint */ musbotg_root_intr(sc); USB_BUS_UNLOCK(&sc->sc_bus); } void musbotg_interrupt(struct musbotg_softc *sc, uint16_t rxstat, uint16_t txstat, uint8_t stat) { uint16_t rx_status; uint16_t tx_status; uint8_t usb_status; uint8_t temp; uint8_t to = 2; USB_BUS_LOCK(&sc->sc_bus); repeat: /* read all interrupt registers */ usb_status = MUSB2_READ_1(sc, MUSB2_REG_INTUSB); /* read all FIFO interrupts */ rx_status = MUSB2_READ_2(sc, MUSB2_REG_INTRX); tx_status = MUSB2_READ_2(sc, MUSB2_REG_INTTX); rx_status |= rxstat; tx_status |= txstat; usb_status |= stat; /* Clear platform flags after first time */ rxstat = 0; txstat = 0; stat = 0; /* check for any bus state change interrupts */ if (usb_status & (MUSB2_MASK_IRESET | MUSB2_MASK_IRESUME | MUSB2_MASK_ISUSP | MUSB2_MASK_ICONN | MUSB2_MASK_IDISC | MUSB2_MASK_IVBUSERR)) { DPRINTFN(4, "real bus interrupt 0x%08x\n", usb_status); if (usb_status & MUSB2_MASK_IRESET) { /* set correct state */ sc->sc_flags.status_bus_reset = 1; sc->sc_flags.status_suspend = 0; sc->sc_flags.change_suspend = 0; sc->sc_flags.change_connect = 1; /* determine line speed */ temp = MUSB2_READ_1(sc, MUSB2_REG_POWER); if (temp & MUSB2_MASK_HSMODE) sc->sc_flags.status_high_speed = 1; else sc->sc_flags.status_high_speed = 0; /* * After reset all interrupts are on and we need to * turn them off! */ temp = MUSB2_MASK_IRESET; /* disable resume interrupt */ temp &= ~MUSB2_MASK_IRESUME; /* enable suspend interrupt */ temp |= MUSB2_MASK_ISUSP; MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, temp); /* disable TX and RX interrupts */ MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, 0); MUSB2_WRITE_2(sc, MUSB2_REG_INTRXE, 0); } /* * If RXRSM and RXSUSP is set at the same time we interpret * that like RESUME. Resume is set when there is at least 3 * milliseconds of inactivity on the USB BUS. */ if (usb_status & MUSB2_MASK_IRESUME) { if (sc->sc_flags.status_suspend) { sc->sc_flags.status_suspend = 0; sc->sc_flags.change_suspend = 1; temp = MUSB2_READ_1(sc, MUSB2_REG_INTUSBE); /* disable resume interrupt */ temp &= ~MUSB2_MASK_IRESUME; /* enable suspend interrupt */ temp |= MUSB2_MASK_ISUSP; MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, temp); } } else if (usb_status & MUSB2_MASK_ISUSP) { if (!sc->sc_flags.status_suspend) { sc->sc_flags.status_suspend = 1; sc->sc_flags.change_suspend = 1; temp = MUSB2_READ_1(sc, MUSB2_REG_INTUSBE); /* disable suspend interrupt */ temp &= ~MUSB2_MASK_ISUSP; /* enable resume interrupt */ temp |= MUSB2_MASK_IRESUME; MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, temp); } } if (usb_status & (MUSB2_MASK_ICONN | MUSB2_MASK_IDISC)) sc->sc_flags.change_connect = 1; /* * Host Mode: There is no IRESET so assume bus is * always in reset state once device is connected. */ if (sc->sc_mode == MUSB2_HOST_MODE) { /* check for VBUS error in USB host mode */ if (usb_status & MUSB2_MASK_IVBUSERR) { temp = MUSB2_READ_1(sc, MUSB2_REG_DEVCTL); temp |= MUSB2_MASK_SESS; MUSB2_WRITE_1(sc, MUSB2_REG_DEVCTL, temp); } if (usb_status & MUSB2_MASK_ICONN) sc->sc_flags.status_bus_reset = 1; if (usb_status & MUSB2_MASK_IDISC) sc->sc_flags.status_bus_reset = 0; } /* complete root HUB interrupt endpoint */ musbotg_root_intr(sc); } /* check for any endpoint interrupts */ if (rx_status || tx_status) { DPRINTFN(4, "real endpoint interrupt " "rx=0x%04x, tx=0x%04x\n", rx_status, tx_status); } /* poll one time regardless of FIFO status */ musbotg_interrupt_poll(sc); if (--to) goto repeat; USB_BUS_UNLOCK(&sc->sc_bus); } static void musbotg_setup_standard_chain_sub(struct musbotg_std_temp *temp) { struct musbotg_td *td; /* get current Transfer Descriptor */ td = temp->td_next; temp->td = td; /* prepare for next TD */ temp->td_next = td->obj_next; /* fill out the Transfer Descriptor */ td->func = temp->func; td->pc = temp->pc; td->offset = temp->offset; td->remainder = temp->len; td->error = 0; td->transaction_started = 0; td->did_stall = temp->did_stall; td->short_pkt = temp->short_pkt; td->alt_next = temp->setup_alt_next; td->channel = temp->channel; td->dev_addr = temp->dev_addr; td->haddr = temp->haddr; td->hport = temp->hport; td->transfer_type = temp->transfer_type; } static void musbotg_setup_standard_chain(struct usb_xfer *xfer) { struct musbotg_std_temp temp; struct musbotg_softc *sc; struct musbotg_td *td; uint32_t x; uint8_t ep_no; uint8_t xfer_type; enum usb_dev_speed speed; int tx; int dev_addr; DPRINTFN(8, "addr=%d endpt=%d sumlen=%d speed=%d\n", xfer->address, UE_GET_ADDR(xfer->endpointno), xfer->sumlen, usbd_get_speed(xfer->xroot->udev)); sc = MUSBOTG_BUS2SC(xfer->xroot->bus); ep_no = (xfer->endpointno & UE_ADDR); temp.max_frame_size = xfer->max_frame_size; td = xfer->td_start[0]; xfer->td_transfer_first = td; xfer->td_transfer_cache = td; /* setup temp */ dev_addr = xfer->address; xfer_type = xfer->endpoint->edesc->bmAttributes & UE_XFERTYPE; temp.pc = NULL; temp.td = NULL; temp.td_next = xfer->td_start[0]; temp.offset = 0; temp.setup_alt_next = xfer->flags_int.short_frames_ok || xfer->flags_int.isochronous_xfr; temp.did_stall = !xfer->flags_int.control_stall; temp.channel = -1; temp.dev_addr = dev_addr; temp.haddr = xfer->xroot->udev->hs_hub_addr; temp.hport = xfer->xroot->udev->hs_port_no; if (xfer->flags_int.usb_mode == USB_MODE_HOST) { speed = usbd_get_speed(xfer->xroot->udev); switch (speed) { case USB_SPEED_LOW: temp.transfer_type = MUSB2_MASK_TI_SPEED_LO; break; case USB_SPEED_FULL: temp.transfer_type = MUSB2_MASK_TI_SPEED_FS; break; case USB_SPEED_HIGH: temp.transfer_type = MUSB2_MASK_TI_SPEED_HS; break; default: temp.transfer_type = 0; DPRINTFN(-1, "Invalid USB speed: %d\n", speed); break; } switch (xfer_type) { case UE_CONTROL: temp.transfer_type |= MUSB2_MASK_TI_PROTO_CTRL; break; case UE_ISOCHRONOUS: temp.transfer_type |= MUSB2_MASK_TI_PROTO_ISOC; break; case UE_BULK: temp.transfer_type |= MUSB2_MASK_TI_PROTO_BULK; break; case UE_INTERRUPT: temp.transfer_type |= MUSB2_MASK_TI_PROTO_INTR; break; default: DPRINTFN(-1, "Invalid USB transfer type: %d\n", xfer_type); break; } temp.transfer_type |= ep_no; td->toggle = xfer->endpoint->toggle_next; } /* check if we should prepend a setup message */ if (xfer->flags_int.control_xfr) { if (xfer->flags_int.control_hdr) { if (xfer->flags_int.usb_mode == USB_MODE_DEVICE) temp.func = &musbotg_dev_ctrl_setup_rx; else temp.func = &musbotg_host_ctrl_setup_tx; temp.len = xfer->frlengths[0]; temp.pc = xfer->frbuffers + 0; temp.short_pkt = temp.len ? 1 : 0; musbotg_setup_standard_chain_sub(&temp); } x = 1; } else { x = 0; } tx = 0; if (x != xfer->nframes) { if (xfer->endpointno & UE_DIR_IN) tx = 1; if (xfer->flags_int.usb_mode == USB_MODE_HOST) { tx = !tx; if (tx) { if (xfer->flags_int.control_xfr) temp.func = &musbotg_host_ctrl_data_tx; else temp.func = &musbotg_host_data_tx; } else { if (xfer->flags_int.control_xfr) temp.func = &musbotg_host_ctrl_data_rx; else temp.func = &musbotg_host_data_rx; } } else { if (tx) { if (xfer->flags_int.control_xfr) temp.func = &musbotg_dev_ctrl_data_tx; else temp.func = &musbotg_dev_data_tx; } else { if (xfer->flags_int.control_xfr) temp.func = &musbotg_dev_ctrl_data_rx; else temp.func = &musbotg_dev_data_rx; } } /* setup "pc" pointer */ temp.pc = xfer->frbuffers + x; } while (x != xfer->nframes) { /* DATA0 / DATA1 message */ temp.len = xfer->frlengths[x]; x++; if (x == xfer->nframes) { if (xfer->flags_int.control_xfr) { if (xfer->flags_int.control_act) { temp.setup_alt_next = 0; } } else { temp.setup_alt_next = 0; } } if (temp.len == 0) { /* make sure that we send an USB packet */ temp.short_pkt = 0; } else { if (xfer->flags_int.isochronous_xfr) { /* isochronous data transfer */ /* don't force short */ temp.short_pkt = 1; } else { /* regular data transfer */ temp.short_pkt = (xfer->flags.force_short_xfer ? 0 : 1); } } musbotg_setup_standard_chain_sub(&temp); if (xfer->flags_int.isochronous_xfr) { temp.offset += temp.len; } else { /* get next Page Cache pointer */ temp.pc = xfer->frbuffers + x; } } /* check for control transfer */ if (xfer->flags_int.control_xfr) { /* always setup a valid "pc" pointer for status and sync */ temp.pc = xfer->frbuffers + 0; temp.len = 0; temp.short_pkt = 0; temp.setup_alt_next = 0; /* check if we should append a status stage */ if (!xfer->flags_int.control_act) { /* * Send a DATA1 message and invert the current * endpoint direction. */ if (sc->sc_mode == MUSB2_DEVICE_MODE) temp.func = &musbotg_dev_ctrl_status; else { if (xfer->endpointno & UE_DIR_IN) temp.func = musbotg_host_ctrl_status_tx; else temp.func = musbotg_host_ctrl_status_rx; } musbotg_setup_standard_chain_sub(&temp); } } /* must have at least one frame! */ td = temp.td; xfer->td_transfer_last = td; } static void musbotg_timeout(void *arg) { struct usb_xfer *xfer = arg; DPRINTFN(1, "xfer=%p\n", xfer); USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); /* transfer is transferred */ musbotg_device_done(xfer, USB_ERR_TIMEOUT); } static void musbotg_ep_int_set(struct musbotg_softc *sc, int channel, int on) { uint16_t temp; /* * Only enable the endpoint interrupt when we are * actually waiting for data, hence we are dealing * with level triggered interrupts ! */ DPRINTFN(1, "ep_no=%d, on=%d\n", channel, on); if (channel == -1) return; if (channel == 0) { temp = MUSB2_READ_2(sc, MUSB2_REG_INTTXE); if (on) temp |= MUSB2_MASK_EPINT(0); else temp &= ~MUSB2_MASK_EPINT(0); MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, temp); } else { temp = MUSB2_READ_2(sc, MUSB2_REG_INTRXE); if (on) temp |= MUSB2_MASK_EPINT(channel); else temp &= ~MUSB2_MASK_EPINT(channel); MUSB2_WRITE_2(sc, MUSB2_REG_INTRXE, temp); temp = MUSB2_READ_2(sc, MUSB2_REG_INTTXE); if (on) temp |= MUSB2_MASK_EPINT(channel); else temp &= ~MUSB2_MASK_EPINT(channel); MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, temp); } if (sc->sc_ep_int_set) sc->sc_ep_int_set(sc, channel, on); } static void musbotg_start_standard_chain(struct usb_xfer *xfer) { DPRINTFN(8, "\n"); /* poll one time */ if (musbotg_xfer_do_fifo(xfer)) { DPRINTFN(14, "enabled interrupts on endpoint\n"); /* put transfer on interrupt queue */ usbd_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer); /* start timeout, if any */ if (xfer->timeout != 0) { usbd_transfer_timeout_ms(xfer, &musbotg_timeout, xfer->timeout); } } } static void musbotg_root_intr(struct musbotg_softc *sc) { DPRINTFN(8, "\n"); USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); /* set port bit */ sc->sc_hub_idata[0] = 0x02; /* we only have one port */ uhub_root_intr(&sc->sc_bus, sc->sc_hub_idata, sizeof(sc->sc_hub_idata)); } static usb_error_t musbotg_standard_done_sub(struct usb_xfer *xfer) { struct musbotg_td *td; uint32_t len; uint8_t error; DPRINTFN(8, "\n"); td = xfer->td_transfer_cache; do { len = td->remainder; xfer->endpoint->toggle_next = td->toggle; if (xfer->aframes != xfer->nframes) { /* * Verify the length and subtract * the remainder from "frlengths[]": */ if (len > xfer->frlengths[xfer->aframes]) { td->error = 1; } else { xfer->frlengths[xfer->aframes] -= len; } } /* Check for transfer error */ if (td->error) { /* the transfer is finished */ error = 1; td = NULL; break; } /* Check for short transfer */ if (len > 0) { if (xfer->flags_int.short_frames_ok || xfer->flags_int.isochronous_xfr) { /* follow alt next */ if (td->alt_next) { td = td->obj_next; } else { td = NULL; } } else { /* the transfer is finished */ td = NULL; } error = 0; break; } td = td->obj_next; /* this USB frame is complete */ error = 0; break; } while (0); /* update transfer cache */ xfer->td_transfer_cache = td; return (error ? USB_ERR_STALLED : USB_ERR_NORMAL_COMPLETION); } static void musbotg_standard_done(struct usb_xfer *xfer) { usb_error_t err = 0; DPRINTFN(12, "xfer=%p endpoint=%p transfer done\n", xfer, xfer->endpoint); /* reset scanner */ xfer->td_transfer_cache = xfer->td_transfer_first; if (xfer->flags_int.control_xfr) { if (xfer->flags_int.control_hdr) { err = musbotg_standard_done_sub(xfer); } xfer->aframes = 1; if (xfer->td_transfer_cache == NULL) { goto done; } } while (xfer->aframes != xfer->nframes) { err = musbotg_standard_done_sub(xfer); xfer->aframes++; if (xfer->td_transfer_cache == NULL) { goto done; } } if (xfer->flags_int.control_xfr && !xfer->flags_int.control_act) { err = musbotg_standard_done_sub(xfer); } done: musbotg_device_done(xfer, err); } /*------------------------------------------------------------------------* * musbotg_device_done * * NOTE: this function can be called more than one time on the * same USB transfer! *------------------------------------------------------------------------*/ static void musbotg_device_done(struct usb_xfer *xfer, usb_error_t error) { struct musbotg_td *td; struct musbotg_softc *sc; USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); DPRINTFN(1, "xfer=%p, endpoint=%p, error=%d\n", xfer, xfer->endpoint, error); DPRINTFN(14, "disabled interrupts on endpoint\n"); sc = MUSBOTG_BUS2SC(xfer->xroot->bus); td = xfer->td_transfer_cache; if (td && (td->channel != -1)) musbotg_channel_free(sc, td); /* dequeue transfer and start next transfer */ usbd_transfer_done(xfer, error); } static void musbotg_xfer_stall(struct usb_xfer *xfer) { musbotg_device_done(xfer, USB_ERR_STALLED); } static void musbotg_set_stall(struct usb_device *udev, struct usb_endpoint *ep, uint8_t *did_stall) { struct musbotg_softc *sc; uint8_t ep_no; USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED); DPRINTFN(4, "endpoint=%p\n", ep); /* set FORCESTALL */ sc = MUSBOTG_BUS2SC(udev->bus); ep_no = (ep->edesc->bEndpointAddress & UE_ADDR); /* select endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, ep_no); if (ep->edesc->bEndpointAddress & UE_DIR_IN) { MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSRL_TXSENDSTALL); } else { MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, MUSB2_MASK_CSRL_RXSENDSTALL); } } static void musbotg_clear_stall_sub(struct musbotg_softc *sc, uint16_t wMaxPacket, uint8_t ep_no, uint8_t ep_type, uint8_t ep_dir) { uint16_t mps; uint16_t temp; uint8_t csr; if (ep_type == UE_CONTROL) { /* clearing stall is not needed */ return; } /* select endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, ep_no); /* compute max frame size */ mps = wMaxPacket & 0x7FF; switch ((wMaxPacket >> 11) & 3) { case 1: mps *= 2; break; case 2: mps *= 3; break; default: break; } if (ep_dir == UE_DIR_IN) { temp = 0; /* Configure endpoint */ switch (ep_type) { case UE_INTERRUPT: MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, wMaxPacket); MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, MUSB2_MASK_CSRH_TXMODE | temp); break; case UE_ISOCHRONOUS: MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, wMaxPacket); MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, MUSB2_MASK_CSRH_TXMODE | MUSB2_MASK_CSRH_TXISO | temp); break; case UE_BULK: MUSB2_WRITE_2(sc, MUSB2_REG_TXMAXP, wMaxPacket); MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRH, MUSB2_MASK_CSRH_TXMODE | temp); break; default: break; } /* Need to flush twice in case of double bufring */ csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); if (csr & MUSB2_MASK_CSRL_TXFIFONEMPTY) { MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSRL_TXFFLUSH); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); if (csr & MUSB2_MASK_CSRL_TXFIFONEMPTY) { MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSRL_TXFFLUSH); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); } } /* reset data toggle */ MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, MUSB2_MASK_CSRL_TXDT_CLR); MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); /* set double/single buffering */ temp = MUSB2_READ_2(sc, MUSB2_REG_TXDBDIS); if (mps <= (sc->sc_hw_ep_profile[ep_no]. max_in_frame_size / 2)) { /* double buffer */ temp &= ~(1 << ep_no); } else { /* single buffer */ temp |= (1 << ep_no); } MUSB2_WRITE_2(sc, MUSB2_REG_TXDBDIS, temp); /* clear sent stall */ if (csr & MUSB2_MASK_CSRL_TXSENTSTALL) { MUSB2_WRITE_1(sc, MUSB2_REG_TXCSRL, 0); csr = MUSB2_READ_1(sc, MUSB2_REG_TXCSRL); } } else { temp = 0; /* Configure endpoint */ switch (ep_type) { case UE_INTERRUPT: MUSB2_WRITE_2(sc, MUSB2_REG_RXMAXP, wMaxPacket); MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRH, MUSB2_MASK_CSRH_RXNYET | temp); break; case UE_ISOCHRONOUS: MUSB2_WRITE_2(sc, MUSB2_REG_RXMAXP, wMaxPacket); MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRH, MUSB2_MASK_CSRH_RXNYET | MUSB2_MASK_CSRH_RXISO | temp); break; case UE_BULK: MUSB2_WRITE_2(sc, MUSB2_REG_RXMAXP, wMaxPacket); MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRH, temp); break; default: break; } /* Need to flush twice in case of double bufring */ csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); if (csr & MUSB2_MASK_CSRL_RXPKTRDY) { MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, MUSB2_MASK_CSRL_RXFFLUSH); csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); if (csr & MUSB2_MASK_CSRL_RXPKTRDY) { MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, MUSB2_MASK_CSRL_RXFFLUSH); csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); } } /* reset data toggle */ MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, MUSB2_MASK_CSRL_RXDT_CLR); MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 0); csr = MUSB2_READ_1(sc, MUSB2_REG_RXCSRL); /* set double/single buffering */ temp = MUSB2_READ_2(sc, MUSB2_REG_RXDBDIS); if (mps <= (sc->sc_hw_ep_profile[ep_no]. max_out_frame_size / 2)) { /* double buffer */ temp &= ~(1 << ep_no); } else { /* single buffer */ temp |= (1 << ep_no); } MUSB2_WRITE_2(sc, MUSB2_REG_RXDBDIS, temp); /* clear sent stall */ if (csr & MUSB2_MASK_CSRL_RXSENTSTALL) { MUSB2_WRITE_1(sc, MUSB2_REG_RXCSRL, 0); } } } static void musbotg_clear_stall(struct usb_device *udev, struct usb_endpoint *ep) { struct musbotg_softc *sc; struct usb_endpoint_descriptor *ed; DPRINTFN(4, "endpoint=%p\n", ep); USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED); /* check mode */ if (udev->flags.usb_mode != USB_MODE_DEVICE) { /* not supported */ return; } /* get softc */ sc = MUSBOTG_BUS2SC(udev->bus); /* get endpoint descriptor */ ed = ep->edesc; /* reset endpoint */ musbotg_clear_stall_sub(sc, UGETW(ed->wMaxPacketSize), (ed->bEndpointAddress & UE_ADDR), (ed->bmAttributes & UE_XFERTYPE), (ed->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT))); } usb_error_t musbotg_init(struct musbotg_softc *sc) { const struct musb_otg_ep_cfg *cfg; struct usb_hw_ep_profile *pf; int i; uint16_t offset; uint8_t nrx; uint8_t ntx; uint8_t temp; uint8_t fsize; uint8_t frx; uint8_t ftx; uint8_t dynfifo; DPRINTFN(1, "start\n"); /* set up the bus structure */ sc->sc_bus.usbrev = USB_REV_2_0; sc->sc_bus.methods = &musbotg_bus_methods; /* Set a default endpoint configuration */ if (sc->sc_ep_cfg == NULL) sc->sc_ep_cfg = musbotg_ep_default; USB_BUS_LOCK(&sc->sc_bus); /* turn on clocks */ if (sc->sc_clocks_on) { (sc->sc_clocks_on) (sc->sc_clocks_arg); } /* wait a little for things to stabilise */ usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 1000); /* disable all interrupts */ temp = MUSB2_READ_1(sc, MUSB2_REG_DEVCTL); DPRINTF("pre-DEVCTL=0x%02x\n", temp); MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, 0); MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, 0); MUSB2_WRITE_2(sc, MUSB2_REG_INTRXE, 0); /* disable pullup */ musbotg_pull_common(sc, 0); /* wait a little bit (10ms) */ usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 100); /* disable double packet buffering */ MUSB2_WRITE_2(sc, MUSB2_REG_RXDBDIS, 0xFFFF); MUSB2_WRITE_2(sc, MUSB2_REG_TXDBDIS, 0xFFFF); /* enable HighSpeed and ISO Update flags */ MUSB2_WRITE_1(sc, MUSB2_REG_POWER, MUSB2_MASK_HSENAB | MUSB2_MASK_ISOUPD); if (sc->sc_mode == MUSB2_DEVICE_MODE) { /* clear Session bit, if set */ temp = MUSB2_READ_1(sc, MUSB2_REG_DEVCTL); temp &= ~MUSB2_MASK_SESS; MUSB2_WRITE_1(sc, MUSB2_REG_DEVCTL, temp); } else { /* Enter session for Host mode */ temp = MUSB2_READ_1(sc, MUSB2_REG_DEVCTL); temp |= MUSB2_MASK_SESS; MUSB2_WRITE_1(sc, MUSB2_REG_DEVCTL, temp); } /* wait a little for things to stabilise */ usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 10); DPRINTF("DEVCTL=0x%02x\n", temp); /* disable testmode */ MUSB2_WRITE_1(sc, MUSB2_REG_TESTMODE, 0); /* set default value */ MUSB2_WRITE_1(sc, MUSB2_REG_MISC, 0); /* select endpoint index 0 */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, 0); if (sc->sc_ep_max == 0) { /* read out number of endpoints */ nrx = (MUSB2_READ_1(sc, MUSB2_REG_EPINFO) / 16); ntx = (MUSB2_READ_1(sc, MUSB2_REG_EPINFO) % 16); sc->sc_ep_max = (nrx > ntx) ? nrx : ntx; } else { nrx = ntx = sc->sc_ep_max; } /* these numbers exclude the control endpoint */ DPRINTFN(2, "RX/TX endpoints: %u/%u\n", nrx, ntx); if (sc->sc_ep_max == 0) { DPRINTFN(2, "ERROR: Looks like the clocks are off!\n"); } /* read out configuration data */ sc->sc_conf_data = MUSB2_READ_1(sc, MUSB2_REG_CONFDATA); DPRINTFN(2, "Config Data: 0x%02x\n", sc->sc_conf_data); dynfifo = (sc->sc_conf_data & MUSB2_MASK_CD_DYNFIFOSZ) ? 1 : 0; if (dynfifo) { device_printf(sc->sc_bus.bdev, "Dynamic FIFO sizing detected, " "assuming 16Kbytes of FIFO RAM\n"); } DPRINTFN(2, "HW version: 0x%04x\n", MUSB2_READ_1(sc, MUSB2_REG_HWVERS)); /* initialise endpoint profiles */ offset = 0; for (temp = 1; temp <= sc->sc_ep_max; temp++) { pf = sc->sc_hw_ep_profile + temp; /* select endpoint */ MUSB2_WRITE_1(sc, MUSB2_REG_EPINDEX, temp); fsize = MUSB2_READ_1(sc, MUSB2_REG_FSIZE); frx = (fsize & MUSB2_MASK_RX_FSIZE) / 16; ftx = (fsize & MUSB2_MASK_TX_FSIZE); DPRINTF("Endpoint %u FIFO size: IN=%u, OUT=%u, DYN=%d\n", temp, ftx, frx, dynfifo); if (dynfifo) { if (frx && (temp <= nrx)) { for (i = 0; sc->sc_ep_cfg[i].ep_end >= 0; i++) { cfg = &sc->sc_ep_cfg[i]; if (temp <= cfg->ep_end) { frx = cfg->ep_fifosz_shift; MUSB2_WRITE_1(sc, MUSB2_REG_RXFIFOSZ, cfg->ep_fifosz_reg); break; } } MUSB2_WRITE_2(sc, MUSB2_REG_RXFIFOADD, offset >> 3); offset += (1 << frx); } if (ftx && (temp <= ntx)) { for (i = 0; sc->sc_ep_cfg[i].ep_end >= 0; i++) { cfg = &sc->sc_ep_cfg[i]; if (temp <= cfg->ep_end) { ftx = cfg->ep_fifosz_shift; MUSB2_WRITE_1(sc, MUSB2_REG_TXFIFOSZ, cfg->ep_fifosz_reg); break; } } MUSB2_WRITE_2(sc, MUSB2_REG_TXFIFOADD, offset >> 3); offset += (1 << ftx); } } if (frx && ftx && (temp <= nrx) && (temp <= ntx)) { pf->max_in_frame_size = 1 << ftx; pf->max_out_frame_size = 1 << frx; pf->is_simplex = 0; /* duplex */ pf->support_multi_buffer = 1; pf->support_bulk = 1; pf->support_interrupt = 1; pf->support_isochronous = 1; pf->support_in = 1; pf->support_out = 1; } else if (frx && (temp <= nrx)) { pf->max_out_frame_size = 1 << frx; pf->max_in_frame_size = 0; pf->is_simplex = 1; /* simplex */ pf->support_multi_buffer = 1; pf->support_bulk = 1; pf->support_interrupt = 1; pf->support_isochronous = 1; pf->support_out = 1; } else if (ftx && (temp <= ntx)) { pf->max_in_frame_size = 1 << ftx; pf->max_out_frame_size = 0; pf->is_simplex = 1; /* simplex */ pf->support_multi_buffer = 1; pf->support_bulk = 1; pf->support_interrupt = 1; pf->support_isochronous = 1; pf->support_in = 1; } } DPRINTFN(2, "Dynamic FIFO size = %d bytes\n", offset); /* turn on default interrupts */ if (sc->sc_mode == MUSB2_HOST_MODE) MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, 0xff); else MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, MUSB2_MASK_IRESET); musbotg_clocks_off(sc); USB_BUS_UNLOCK(&sc->sc_bus); /* catch any lost interrupts */ musbotg_do_poll(&sc->sc_bus); return (0); /* success */ } void musbotg_uninit(struct musbotg_softc *sc) { USB_BUS_LOCK(&sc->sc_bus); /* disable all interrupts */ MUSB2_WRITE_1(sc, MUSB2_REG_INTUSBE, 0); MUSB2_WRITE_2(sc, MUSB2_REG_INTTXE, 0); MUSB2_WRITE_2(sc, MUSB2_REG_INTRXE, 0); sc->sc_flags.port_powered = 0; sc->sc_flags.status_vbus = 0; sc->sc_flags.status_bus_reset = 0; sc->sc_flags.status_suspend = 0; sc->sc_flags.change_suspend = 0; sc->sc_flags.change_connect = 1; musbotg_pull_down(sc); musbotg_clocks_off(sc); USB_BUS_UNLOCK(&sc->sc_bus); } static void musbotg_do_poll(struct usb_bus *bus) { struct musbotg_softc *sc = MUSBOTG_BUS2SC(bus); USB_BUS_LOCK(&sc->sc_bus); musbotg_interrupt_poll(sc); USB_BUS_UNLOCK(&sc->sc_bus); } /*------------------------------------------------------------------------* * musbotg bulk support *------------------------------------------------------------------------*/ static void musbotg_device_bulk_open(struct usb_xfer *xfer) { return; } static void musbotg_device_bulk_close(struct usb_xfer *xfer) { musbotg_device_done(xfer, USB_ERR_CANCELLED); } static void musbotg_device_bulk_enter(struct usb_xfer *xfer) { return; } static void musbotg_device_bulk_start(struct usb_xfer *xfer) { /* setup TDs */ musbotg_setup_standard_chain(xfer); musbotg_start_standard_chain(xfer); } static const struct usb_pipe_methods musbotg_device_bulk_methods = { .open = musbotg_device_bulk_open, .close = musbotg_device_bulk_close, .enter = musbotg_device_bulk_enter, .start = musbotg_device_bulk_start, }; /*------------------------------------------------------------------------* * musbotg control support *------------------------------------------------------------------------*/ static void musbotg_device_ctrl_open(struct usb_xfer *xfer) { return; } static void musbotg_device_ctrl_close(struct usb_xfer *xfer) { musbotg_device_done(xfer, USB_ERR_CANCELLED); } static void musbotg_device_ctrl_enter(struct usb_xfer *xfer) { return; } static void musbotg_device_ctrl_start(struct usb_xfer *xfer) { /* setup TDs */ musbotg_setup_standard_chain(xfer); musbotg_start_standard_chain(xfer); } static const struct usb_pipe_methods musbotg_device_ctrl_methods = { .open = musbotg_device_ctrl_open, .close = musbotg_device_ctrl_close, .enter = musbotg_device_ctrl_enter, .start = musbotg_device_ctrl_start, }; /*------------------------------------------------------------------------* * musbotg interrupt support *------------------------------------------------------------------------*/ static void musbotg_device_intr_open(struct usb_xfer *xfer) { return; } static void musbotg_device_intr_close(struct usb_xfer *xfer) { musbotg_device_done(xfer, USB_ERR_CANCELLED); } static void musbotg_device_intr_enter(struct usb_xfer *xfer) { return; } static void musbotg_device_intr_start(struct usb_xfer *xfer) { /* setup TDs */ musbotg_setup_standard_chain(xfer); musbotg_start_standard_chain(xfer); } static const struct usb_pipe_methods musbotg_device_intr_methods = { .open = musbotg_device_intr_open, .close = musbotg_device_intr_close, .enter = musbotg_device_intr_enter, .start = musbotg_device_intr_start, }; /*------------------------------------------------------------------------* * musbotg full speed isochronous support *------------------------------------------------------------------------*/ static void musbotg_device_isoc_open(struct usb_xfer *xfer) { return; } static void musbotg_device_isoc_close(struct usb_xfer *xfer) { musbotg_device_done(xfer, USB_ERR_CANCELLED); } static void musbotg_device_isoc_enter(struct usb_xfer *xfer) { struct musbotg_softc *sc = MUSBOTG_BUS2SC(xfer->xroot->bus); uint32_t nframes; DPRINTFN(5, "xfer=%p next=%d nframes=%d\n", xfer, xfer->endpoint->isoc_next, xfer->nframes); /* get the current frame index */ nframes = MUSB2_READ_2(sc, MUSB2_REG_FRAME); if (usbd_xfer_get_isochronous_start_frame( xfer, nframes, 0, 1, MUSB2_MASK_FRAME, NULL)) DPRINTFN(2, "start next=%d\n", xfer->endpoint->isoc_next); /* setup TDs */ musbotg_setup_standard_chain(xfer); } static void musbotg_device_isoc_start(struct usb_xfer *xfer) { /* start TD chain */ musbotg_start_standard_chain(xfer); } static const struct usb_pipe_methods musbotg_device_isoc_methods = { .open = musbotg_device_isoc_open, .close = musbotg_device_isoc_close, .enter = musbotg_device_isoc_enter, .start = musbotg_device_isoc_start, }; /*------------------------------------------------------------------------* * musbotg root control support *------------------------------------------------------------------------* * Simulate a hardware HUB by handling all the necessary requests. *------------------------------------------------------------------------*/ static const struct usb_device_descriptor musbotg_devd = { .bLength = sizeof(struct usb_device_descriptor), .bDescriptorType = UDESC_DEVICE, .bcdUSB = {0x00, 0x02}, .bDeviceClass = UDCLASS_HUB, .bDeviceSubClass = UDSUBCLASS_HUB, .bDeviceProtocol = UDPROTO_HSHUBSTT, .bMaxPacketSize = 64, .bcdDevice = {0x00, 0x01}, .iManufacturer = 1, .iProduct = 2, .bNumConfigurations = 1, }; static const struct usb_device_qualifier musbotg_odevd = { .bLength = sizeof(struct usb_device_qualifier), .bDescriptorType = UDESC_DEVICE_QUALIFIER, .bcdUSB = {0x00, 0x02}, .bDeviceClass = UDCLASS_HUB, .bDeviceSubClass = UDSUBCLASS_HUB, .bDeviceProtocol = UDPROTO_FSHUB, .bMaxPacketSize0 = 0, .bNumConfigurations = 0, }; static const struct musbotg_config_desc musbotg_confd = { .confd = { .bLength = sizeof(struct usb_config_descriptor), .bDescriptorType = UDESC_CONFIG, .wTotalLength[0] = sizeof(musbotg_confd), .bNumInterface = 1, .bConfigurationValue = 1, .iConfiguration = 0, .bmAttributes = UC_SELF_POWERED, .bMaxPower = 0, }, .ifcd = { .bLength = sizeof(struct usb_interface_descriptor), .bDescriptorType = UDESC_INTERFACE, .bNumEndpoints = 1, .bInterfaceClass = UICLASS_HUB, .bInterfaceSubClass = UISUBCLASS_HUB, .bInterfaceProtocol = 0, }, .endpd = { .bLength = sizeof(struct usb_endpoint_descriptor), .bDescriptorType = UDESC_ENDPOINT, .bEndpointAddress = (UE_DIR_IN | MUSBOTG_INTR_ENDPT), .bmAttributes = UE_INTERRUPT, .wMaxPacketSize[0] = 8, .bInterval = 255, }, }; #define HSETW(ptr, val) ptr = { (uint8_t)(val), (uint8_t)((val) >> 8) } static const struct usb_hub_descriptor_min musbotg_hubd = { .bDescLength = sizeof(musbotg_hubd), .bDescriptorType = UDESC_HUB, .bNbrPorts = 1, HSETW(.wHubCharacteristics, (UHD_PWR_NO_SWITCH | UHD_OC_INDIVIDUAL)), .bPwrOn2PwrGood = 50, .bHubContrCurrent = 0, .DeviceRemovable = {0}, /* port is removable */ }; #define STRING_VENDOR \ "M\0e\0n\0t\0o\0r\0 \0G\0r\0a\0p\0h\0i\0c\0s" #define STRING_PRODUCT \ "O\0T\0G\0 \0R\0o\0o\0t\0 \0H\0U\0B" USB_MAKE_STRING_DESC(STRING_VENDOR, musbotg_vendor); USB_MAKE_STRING_DESC(STRING_PRODUCT, musbotg_product); static usb_error_t musbotg_roothub_exec(struct usb_device *udev, struct usb_device_request *req, const void **pptr, uint16_t *plength) { struct musbotg_softc *sc = MUSBOTG_BUS2SC(udev->bus); const void *ptr; uint16_t len; uint16_t value; uint16_t index; uint8_t reg; usb_error_t err; USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); /* buffer reset */ ptr = (const void *)&sc->sc_hub_temp; len = 0; err = 0; value = UGETW(req->wValue); index = UGETW(req->wIndex); /* demultiplex the control request */ switch (req->bmRequestType) { case UT_READ_DEVICE: switch (req->bRequest) { case UR_GET_DESCRIPTOR: goto tr_handle_get_descriptor; case UR_GET_CONFIG: goto tr_handle_get_config; case UR_GET_STATUS: goto tr_handle_get_status; default: goto tr_stalled; } break; case UT_WRITE_DEVICE: switch (req->bRequest) { case UR_SET_ADDRESS: goto tr_handle_set_address; case UR_SET_CONFIG: goto tr_handle_set_config; case UR_CLEAR_FEATURE: goto tr_valid; /* nop */ case UR_SET_DESCRIPTOR: goto tr_valid; /* nop */ case UR_SET_FEATURE: default: goto tr_stalled; } break; case UT_WRITE_ENDPOINT: switch (req->bRequest) { case UR_CLEAR_FEATURE: switch (UGETW(req->wValue)) { case UF_ENDPOINT_HALT: goto tr_handle_clear_halt; case UF_DEVICE_REMOTE_WAKEUP: goto tr_handle_clear_wakeup; default: goto tr_stalled; } break; case UR_SET_FEATURE: switch (UGETW(req->wValue)) { case UF_ENDPOINT_HALT: goto tr_handle_set_halt; case UF_DEVICE_REMOTE_WAKEUP: goto tr_handle_set_wakeup; default: goto tr_stalled; } break; case UR_SYNCH_FRAME: goto tr_valid; /* nop */ default: goto tr_stalled; } break; case UT_READ_ENDPOINT: switch (req->bRequest) { case UR_GET_STATUS: goto tr_handle_get_ep_status; default: goto tr_stalled; } break; case UT_WRITE_INTERFACE: switch (req->bRequest) { case UR_SET_INTERFACE: goto tr_handle_set_interface; case UR_CLEAR_FEATURE: goto tr_valid; /* nop */ case UR_SET_FEATURE: default: goto tr_stalled; } break; case UT_READ_INTERFACE: switch (req->bRequest) { case UR_GET_INTERFACE: goto tr_handle_get_interface; case UR_GET_STATUS: goto tr_handle_get_iface_status; default: goto tr_stalled; } break; case UT_WRITE_CLASS_INTERFACE: case UT_WRITE_VENDOR_INTERFACE: /* XXX forward */ break; case UT_READ_CLASS_INTERFACE: case UT_READ_VENDOR_INTERFACE: /* XXX forward */ break; case UT_WRITE_CLASS_DEVICE: switch (req->bRequest) { case UR_CLEAR_FEATURE: goto tr_valid; case UR_SET_DESCRIPTOR: case UR_SET_FEATURE: break; default: goto tr_stalled; } break; case UT_WRITE_CLASS_OTHER: switch (req->bRequest) { case UR_CLEAR_FEATURE: goto tr_handle_clear_port_feature; case UR_SET_FEATURE: goto tr_handle_set_port_feature; case UR_CLEAR_TT_BUFFER: case UR_RESET_TT: case UR_STOP_TT: goto tr_valid; default: goto tr_stalled; } break; case UT_READ_CLASS_OTHER: switch (req->bRequest) { case UR_GET_TT_STATE: goto tr_handle_get_tt_state; case UR_GET_STATUS: goto tr_handle_get_port_status; default: goto tr_stalled; } break; case UT_READ_CLASS_DEVICE: switch (req->bRequest) { case UR_GET_DESCRIPTOR: goto tr_handle_get_class_descriptor; case UR_GET_STATUS: goto tr_handle_get_class_status; default: goto tr_stalled; } break; default: goto tr_stalled; } goto tr_valid; tr_handle_get_descriptor: switch (value >> 8) { case UDESC_DEVICE: if (value & 0xff) { goto tr_stalled; } len = sizeof(musbotg_devd); ptr = (const void *)&musbotg_devd; goto tr_valid; case UDESC_DEVICE_QUALIFIER: if (value & 0xff) { goto tr_stalled; } len = sizeof(musbotg_odevd); ptr = (const void *)&musbotg_odevd; goto tr_valid; case UDESC_CONFIG: if (value & 0xff) { goto tr_stalled; } len = sizeof(musbotg_confd); ptr = (const void *)&musbotg_confd; goto tr_valid; case UDESC_STRING: switch (value & 0xff) { case 0: /* Language table */ len = sizeof(usb_string_lang_en); ptr = (const void *)&usb_string_lang_en; goto tr_valid; case 1: /* Vendor */ len = sizeof(musbotg_vendor); ptr = (const void *)&musbotg_vendor; goto tr_valid; case 2: /* Product */ len = sizeof(musbotg_product); ptr = (const void *)&musbotg_product; goto tr_valid; default: break; } break; default: goto tr_stalled; } goto tr_stalled; tr_handle_get_config: len = 1; sc->sc_hub_temp.wValue[0] = sc->sc_conf; goto tr_valid; tr_handle_get_status: len = 2; USETW(sc->sc_hub_temp.wValue, UDS_SELF_POWERED); goto tr_valid; tr_handle_set_address: if (value & 0xFF00) { goto tr_stalled; } sc->sc_rt_addr = value; goto tr_valid; tr_handle_set_config: if (value >= 2) { goto tr_stalled; } sc->sc_conf = value; goto tr_valid; tr_handle_get_interface: len = 1; sc->sc_hub_temp.wValue[0] = 0; goto tr_valid; tr_handle_get_tt_state: tr_handle_get_class_status: tr_handle_get_iface_status: tr_handle_get_ep_status: len = 2; USETW(sc->sc_hub_temp.wValue, 0); goto tr_valid; tr_handle_set_halt: tr_handle_set_interface: tr_handle_set_wakeup: tr_handle_clear_wakeup: tr_handle_clear_halt: goto tr_valid; tr_handle_clear_port_feature: if (index != 1) { goto tr_stalled; } DPRINTFN(8, "UR_CLEAR_PORT_FEATURE on port %d\n", index); switch (value) { case UHF_PORT_SUSPEND: if (sc->sc_mode == MUSB2_HOST_MODE) musbotg_wakeup_host(sc); else musbotg_wakeup_peer(sc); break; case UHF_PORT_ENABLE: sc->sc_flags.port_enabled = 0; break; case UHF_C_PORT_ENABLE: sc->sc_flags.change_enabled = 0; break; case UHF_C_PORT_OVER_CURRENT: sc->sc_flags.change_over_current = 0; break; case UHF_C_PORT_RESET: sc->sc_flags.change_reset = 0; break; case UHF_PORT_TEST: case UHF_PORT_INDICATOR: /* nops */ break; case UHF_PORT_POWER: sc->sc_flags.port_powered = 0; musbotg_pull_down(sc); musbotg_clocks_off(sc); break; case UHF_C_PORT_CONNECTION: sc->sc_flags.change_connect = 0; break; case UHF_C_PORT_SUSPEND: sc->sc_flags.change_suspend = 0; break; default: err = USB_ERR_IOERROR; goto done; } goto tr_valid; tr_handle_set_port_feature: if (index != 1) { goto tr_stalled; } DPRINTFN(8, "UR_SET_PORT_FEATURE\n"); switch (value) { case UHF_PORT_ENABLE: sc->sc_flags.port_enabled = 1; break; case UHF_PORT_SUSPEND: if (sc->sc_mode == MUSB2_HOST_MODE) musbotg_suspend_host(sc); break; case UHF_PORT_RESET: if (sc->sc_mode == MUSB2_HOST_MODE) { reg = MUSB2_READ_1(sc, MUSB2_REG_POWER); reg |= MUSB2_MASK_RESET; MUSB2_WRITE_1(sc, MUSB2_REG_POWER, reg); /* Wait for 20 msec */ usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 5); reg = MUSB2_READ_1(sc, MUSB2_REG_POWER); reg &= ~MUSB2_MASK_RESET; MUSB2_WRITE_1(sc, MUSB2_REG_POWER, reg); /* determine line speed */ reg = MUSB2_READ_1(sc, MUSB2_REG_POWER); if (reg & MUSB2_MASK_HSMODE) sc->sc_flags.status_high_speed = 1; else sc->sc_flags.status_high_speed = 0; sc->sc_flags.change_reset = 1; } else err = USB_ERR_IOERROR; break; case UHF_PORT_TEST: case UHF_PORT_INDICATOR: /* nops */ break; case UHF_PORT_POWER: sc->sc_flags.port_powered = 1; break; default: err = USB_ERR_IOERROR; goto done; } goto tr_valid; tr_handle_get_port_status: DPRINTFN(8, "UR_GET_PORT_STATUS\n"); if (index != 1) { goto tr_stalled; } if (sc->sc_flags.status_vbus) { musbotg_clocks_on(sc); musbotg_pull_up(sc); } else { musbotg_pull_down(sc); musbotg_clocks_off(sc); } /* Select Device Side Mode */ if (sc->sc_mode == MUSB2_DEVICE_MODE) value = UPS_PORT_MODE_DEVICE; else value = 0; if (sc->sc_flags.status_high_speed) { value |= UPS_HIGH_SPEED; } if (sc->sc_flags.port_powered) { value |= UPS_PORT_POWER; } if (sc->sc_flags.port_enabled) { value |= UPS_PORT_ENABLED; } if (sc->sc_flags.port_over_current) value |= UPS_OVERCURRENT_INDICATOR; if (sc->sc_flags.status_vbus && sc->sc_flags.status_bus_reset) { value |= UPS_CURRENT_CONNECT_STATUS; } if (sc->sc_flags.status_suspend) { value |= UPS_SUSPEND; } USETW(sc->sc_hub_temp.ps.wPortStatus, value); value = 0; if (sc->sc_flags.change_connect) { value |= UPS_C_CONNECT_STATUS; if (sc->sc_mode == MUSB2_DEVICE_MODE) { if (sc->sc_flags.status_vbus && sc->sc_flags.status_bus_reset) { /* reset EP0 state */ sc->sc_ep0_busy = 0; sc->sc_ep0_cmd = 0; } } } if (sc->sc_flags.change_suspend) value |= UPS_C_SUSPEND; if (sc->sc_flags.change_reset) value |= UPS_C_PORT_RESET; if (sc->sc_flags.change_over_current) value |= UPS_C_OVERCURRENT_INDICATOR; USETW(sc->sc_hub_temp.ps.wPortChange, value); len = sizeof(sc->sc_hub_temp.ps); goto tr_valid; tr_handle_get_class_descriptor: if (value & 0xFF) { goto tr_stalled; } ptr = (const void *)&musbotg_hubd; len = sizeof(musbotg_hubd); goto tr_valid; tr_stalled: err = USB_ERR_STALLED; tr_valid: done: *plength = len; *pptr = ptr; return (err); } static void musbotg_xfer_setup(struct usb_setup_params *parm) { struct usb_xfer *xfer; void *last_obj; uint32_t ntd; uint32_t n; uint8_t ep_no; xfer = parm->curr_xfer; /* * NOTE: This driver does not use any of the parameters that * are computed from the following values. Just set some * reasonable dummies: */ parm->hc_max_packet_size = 0x400; parm->hc_max_frame_size = 0xc00; if ((parm->methods == &musbotg_device_isoc_methods) || (parm->methods == &musbotg_device_intr_methods)) parm->hc_max_packet_count = 3; else parm->hc_max_packet_count = 1; usbd_transfer_setup_sub(parm); /* * compute maximum number of TDs */ if (parm->methods == &musbotg_device_ctrl_methods) { ntd = xfer->nframes + 1 /* STATUS */ + 1 /* SYNC */ ; } else if (parm->methods == &musbotg_device_bulk_methods) { ntd = xfer->nframes + 1 /* SYNC */ ; } else if (parm->methods == &musbotg_device_intr_methods) { ntd = xfer->nframes + 1 /* SYNC */ ; } else if (parm->methods == &musbotg_device_isoc_methods) { ntd = xfer->nframes + 1 /* SYNC */ ; } else { ntd = 0; } /* * check if "usbd_transfer_setup_sub" set an error */ if (parm->err) { return; } /* * allocate transfer descriptors */ last_obj = NULL; ep_no = xfer->endpointno & UE_ADDR; /* * Check for a valid endpoint profile in USB device mode: */ if (xfer->flags_int.usb_mode == USB_MODE_DEVICE) { const struct usb_hw_ep_profile *pf; musbotg_get_hw_ep_profile(parm->udev, &pf, ep_no); if (pf == NULL) { /* should not happen */ parm->err = USB_ERR_INVAL; return; } } /* align data */ parm->size[0] += ((-parm->size[0]) & (USB_HOST_ALIGN - 1)); for (n = 0; n != ntd; n++) { struct musbotg_td *td; if (parm->buf) { td = USB_ADD_BYTES(parm->buf, parm->size[0]); /* init TD */ td->max_frame_size = xfer->max_frame_size; td->reg_max_packet = xfer->max_packet_size | ((xfer->max_packet_count - 1) << 11); td->ep_no = ep_no; td->obj_next = last_obj; last_obj = td; } parm->size[0] += sizeof(*td); } xfer->td_start[0] = last_obj; } static void musbotg_xfer_unsetup(struct usb_xfer *xfer) { return; } static void musbotg_get_dma_delay(struct usb_device *udev, uint32_t *pus) { struct musbotg_softc *sc = MUSBOTG_BUS2SC(udev->bus); if (sc->sc_mode == MUSB2_HOST_MODE) *pus = 2000; /* microseconds */ else *pus = 0; } static void musbotg_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc, struct usb_endpoint *ep) { struct musbotg_softc *sc = MUSBOTG_BUS2SC(udev->bus); DPRINTFN(2, "endpoint=%p, addr=%d, endpt=%d, mode=%d (%d)\n", ep, udev->address, edesc->bEndpointAddress, udev->flags.usb_mode, sc->sc_rt_addr); if (udev->device_index != sc->sc_rt_addr) { switch (edesc->bmAttributes & UE_XFERTYPE) { case UE_CONTROL: ep->methods = &musbotg_device_ctrl_methods; break; case UE_INTERRUPT: ep->methods = &musbotg_device_intr_methods; break; case UE_ISOCHRONOUS: ep->methods = &musbotg_device_isoc_methods; break; case UE_BULK: ep->methods = &musbotg_device_bulk_methods; break; default: /* do nothing */ break; } } } static void musbotg_set_hw_power_sleep(struct usb_bus *bus, uint32_t state) { struct musbotg_softc *sc = MUSBOTG_BUS2SC(bus); switch (state) { case USB_HW_POWER_SUSPEND: musbotg_uninit(sc); break; case USB_HW_POWER_SHUTDOWN: musbotg_uninit(sc); break; case USB_HW_POWER_RESUME: musbotg_init(sc); break; default: break; } } static const struct usb_bus_methods musbotg_bus_methods = { .endpoint_init = &musbotg_ep_init, .get_dma_delay = &musbotg_get_dma_delay, .xfer_setup = &musbotg_xfer_setup, .xfer_unsetup = &musbotg_xfer_unsetup, .get_hw_ep_profile = &musbotg_get_hw_ep_profile, .xfer_stall = &musbotg_xfer_stall, .set_stall = &musbotg_set_stall, .clear_stall = &musbotg_clear_stall, .roothub_exec = &musbotg_roothub_exec, .xfer_poll = &musbotg_do_poll, .set_hw_power_sleep = &musbotg_set_hw_power_sleep, };