diff options
Diffstat (limited to 'sys/dev/usb/controller/at91dci.c')
| -rw-r--r-- | sys/dev/usb/controller/at91dci.c | 2382 |
1 files changed, 0 insertions, 2382 deletions
diff --git a/sys/dev/usb/controller/at91dci.c b/sys/dev/usb/controller/at91dci.c deleted file mode 100644 index 010f58589813..000000000000 --- a/sys/dev/usb/controller/at91dci.c +++ /dev/null @@ -1,2382 +0,0 @@ -/* $FreeBSD$ */ -/*- - * SPDX-License-Identifier: BSD-2-Clause-FreeBSD - * - * Copyright (c) 2007-2008 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. - */ - -/* - * This file contains the driver for the AT91 series USB Device - * Controller - */ - -/* - * Thanks to "David Brownell" for helping out regarding the hardware - * endpoint profiles. - */ - -/* - * NOTE: The "fifo_bank" is not reset in hardware when the endpoint is - * reset. - * - * NOTE: When the chip detects BUS-reset it will also reset the - * endpoints, Function-address and more. - */ - -#ifdef USB_GLOBAL_INCLUDE_FILE -#include USB_GLOBAL_INCLUDE_FILE -#else -#include <sys/stdint.h> -#include <sys/stddef.h> -#include <sys/param.h> -#include <sys/queue.h> -#include <sys/types.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/bus.h> -#include <sys/module.h> -#include <sys/lock.h> -#include <sys/mutex.h> -#include <sys/condvar.h> -#include <sys/sysctl.h> -#include <sys/sx.h> -#include <sys/unistd.h> -#include <sys/callout.h> -#include <sys/malloc.h> -#include <sys/priv.h> - -#include <dev/usb/usb.h> -#include <dev/usb/usbdi.h> - -#define USB_DEBUG_VAR at91dcidebug - -#include <dev/usb/usb_core.h> -#include <dev/usb/usb_debug.h> -#include <dev/usb/usb_busdma.h> -#include <dev/usb/usb_process.h> -#include <dev/usb/usb_transfer.h> -#include <dev/usb/usb_device.h> -#include <dev/usb/usb_hub.h> -#include <dev/usb/usb_util.h> - -#include <dev/usb/usb_controller.h> -#include <dev/usb/usb_bus.h> -#endif /* USB_GLOBAL_INCLUDE_FILE */ - -#include <dev/usb/controller/at91dci.h> - -#define AT9100_DCI_BUS2SC(bus) \ - ((struct at91dci_softc *)(((uint8_t *)(bus)) - \ - ((uint8_t *)&(((struct at91dci_softc *)0)->sc_bus)))) - -#define AT9100_DCI_PC2SC(pc) \ - AT9100_DCI_BUS2SC(USB_DMATAG_TO_XROOT((pc)->tag_parent)->bus) - -#define AT9100_DCI_THREAD_IRQ \ - (AT91_UDP_INT_BUS | AT91_UDP_INT_END_BR | AT91_UDP_INT_RXRSM | AT91_UDP_INT_RXSUSP) - -#ifdef USB_DEBUG -static int at91dcidebug = 0; - -static SYSCTL_NODE(_hw_usb, OID_AUTO, at91dci, CTLFLAG_RW, 0, "USB at91dci"); -SYSCTL_INT(_hw_usb_at91dci, OID_AUTO, debug, CTLFLAG_RWTUN, - &at91dcidebug, 0, "at91dci debug level"); -#endif - -#define AT9100_DCI_INTR_ENDPT 1 - -/* prototypes */ - -static const struct usb_bus_methods at91dci_bus_methods; -static const struct usb_pipe_methods at91dci_device_bulk_methods; -static const struct usb_pipe_methods at91dci_device_ctrl_methods; -static const struct usb_pipe_methods at91dci_device_intr_methods; -static const struct usb_pipe_methods at91dci_device_isoc_fs_methods; - -static at91dci_cmd_t at91dci_setup_rx; -static at91dci_cmd_t at91dci_data_rx; -static at91dci_cmd_t at91dci_data_tx; -static at91dci_cmd_t at91dci_data_tx_sync; -static void at91dci_device_done(struct usb_xfer *, usb_error_t); -static void at91dci_do_poll(struct usb_bus *); -static void at91dci_standard_done(struct usb_xfer *); -static void at91dci_root_intr(struct at91dci_softc *sc); - -/* - * NOTE: Some of the bits in the CSR register have inverse meaning so - * we need a helper macro when acknowledging events: - */ -#define AT91_CSR_ACK(csr, what) do { \ - (csr) &= ~((AT91_UDP_CSR_FORCESTALL| \ - AT91_UDP_CSR_TXPKTRDY| \ - AT91_UDP_CSR_RXBYTECNT) ^ (what));\ - (csr) |= ((AT91_UDP_CSR_RX_DATA_BK0| \ - AT91_UDP_CSR_RX_DATA_BK1| \ - AT91_UDP_CSR_TXCOMP| \ - AT91_UDP_CSR_RXSETUP| \ - AT91_UDP_CSR_STALLSENT) ^ (what)); \ -} while (0) - -/* - * Here is a list of what the chip supports. - * Probably it supports more than listed here! - */ -static const struct usb_hw_ep_profile - at91dci_ep_profile[AT91_UDP_EP_MAX] = { - - [0] = { - .max_in_frame_size = 8, - .max_out_frame_size = 8, - .is_simplex = 1, - .support_control = 1, - }, - [1] = { - .max_in_frame_size = 64, - .max_out_frame_size = 64, - .is_simplex = 1, - .support_multi_buffer = 1, - .support_bulk = 1, - .support_interrupt = 1, - .support_isochronous = 1, - .support_in = 1, - .support_out = 1, - }, - [2] = { - .max_in_frame_size = 64, - .max_out_frame_size = 64, - .is_simplex = 1, - .support_multi_buffer = 1, - .support_bulk = 1, - .support_interrupt = 1, - .support_isochronous = 1, - .support_in = 1, - .support_out = 1, - }, - [3] = { - /* can also do BULK */ - .max_in_frame_size = 8, - .max_out_frame_size = 8, - .is_simplex = 1, - .support_interrupt = 1, - .support_in = 1, - .support_out = 1, - }, - [4] = { - .max_in_frame_size = 256, - .max_out_frame_size = 256, - .is_simplex = 1, - .support_multi_buffer = 1, - .support_bulk = 1, - .support_interrupt = 1, - .support_isochronous = 1, - .support_in = 1, - .support_out = 1, - }, - [5] = { - .max_in_frame_size = 256, - .max_out_frame_size = 256, - .is_simplex = 1, - .support_multi_buffer = 1, - .support_bulk = 1, - .support_interrupt = 1, - .support_isochronous = 1, - .support_in = 1, - .support_out = 1, - }, -}; - -static void -at91dci_get_hw_ep_profile(struct usb_device *udev, - const struct usb_hw_ep_profile **ppf, uint8_t ep_addr) -{ - if (ep_addr < AT91_UDP_EP_MAX) { - *ppf = (at91dci_ep_profile + ep_addr); - } else { - *ppf = NULL; - } -} - -static void -at91dci_clocks_on(struct at91dci_softc *sc) -{ - if (sc->sc_flags.clocks_off && - sc->sc_flags.port_powered) { - - DPRINTFN(5, "\n"); - - if (sc->sc_clocks_on) { - (sc->sc_clocks_on) (sc->sc_clocks_arg); - } - sc->sc_flags.clocks_off = 0; - - /* enable Transceiver */ - AT91_UDP_WRITE_4(sc, AT91_UDP_TXVC, 0); - } -} - -static void -at91dci_clocks_off(struct at91dci_softc *sc) -{ - if (!sc->sc_flags.clocks_off) { - - DPRINTFN(5, "\n"); - - /* disable Transceiver */ - AT91_UDP_WRITE_4(sc, AT91_UDP_TXVC, AT91_UDP_TXVC_DIS); - - if (sc->sc_clocks_off) { - (sc->sc_clocks_off) (sc->sc_clocks_arg); - } - sc->sc_flags.clocks_off = 1; - } -} - -static void -at91dci_pull_up(struct at91dci_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; - (sc->sc_pull_up) (sc->sc_pull_arg); - } -} - -static void -at91dci_pull_down(struct at91dci_softc *sc) -{ - /* pulldown D+, if possible */ - - if (sc->sc_flags.d_pulled_up) { - sc->sc_flags.d_pulled_up = 0; - (sc->sc_pull_down) (sc->sc_pull_arg); - } -} - -static void -at91dci_wakeup_peer(struct at91dci_softc *sc) -{ - if (!(sc->sc_flags.status_suspend)) { - return; - } - - AT91_UDP_WRITE_4(sc, AT91_UDP_GSTATE, AT91_UDP_GSTATE_ESR); - - /* wait 8 milliseconds */ - /* Wait for reset to complete. */ - usb_pause_mtx(&sc->sc_bus.bus_mtx, hz / 125); - - AT91_UDP_WRITE_4(sc, AT91_UDP_GSTATE, 0); -} - -static void -at91dci_set_address(struct at91dci_softc *sc, uint8_t addr) -{ - DPRINTFN(5, "addr=%d\n", addr); - - AT91_UDP_WRITE_4(sc, AT91_UDP_FADDR, addr | - AT91_UDP_FADDR_EN); -} - -static uint8_t -at91dci_setup_rx(struct at91dci_softc *sc, struct at91dci_td *td) -{ - struct usb_device_request req; - uint32_t csr; - uint32_t temp; - uint16_t count; - - /* read out FIFO status */ - csr = AT91_UDP_READ_4(sc, td->status_reg); - - DPRINTFN(5, "csr=0x%08x rem=%u\n", csr, td->remainder); - - temp = csr; - temp &= (AT91_UDP_CSR_RX_DATA_BK0 | - AT91_UDP_CSR_RX_DATA_BK1 | - AT91_UDP_CSR_STALLSENT | - AT91_UDP_CSR_RXSETUP | - AT91_UDP_CSR_TXCOMP); - - if (!(csr & AT91_UDP_CSR_RXSETUP)) { - goto not_complete; - } - /* clear did stall */ - td->did_stall = 0; - - /* get the packet byte count */ - count = (csr & AT91_UDP_CSR_RXBYTECNT) >> 16; - - /* verify data length */ - if (count != td->remainder) { - DPRINTFN(0, "Invalid SETUP packet " - "length, %d bytes\n", count); - goto not_complete; - } - if (count != sizeof(req)) { - DPRINTFN(0, "Unsupported SETUP packet " - "length, %d bytes\n", count); - goto not_complete; - } - /* receive data */ - bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, - td->fifo_reg, (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; - - /* 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; - } - - /* sneak peek the endpoint direction */ - if (req.bmRequestType & UE_DIR_IN) { - csr |= AT91_UDP_CSR_DIR; - } else { - csr &= ~AT91_UDP_CSR_DIR; - } - - /* write the direction of the control transfer */ - AT91_CSR_ACK(csr, temp); - AT91_UDP_WRITE_4(sc, td->status_reg, csr); - return (0); /* complete */ - -not_complete: - /* abort any ongoing transfer */ - if (!td->did_stall) { - DPRINTFN(5, "stalling\n"); - temp |= AT91_UDP_CSR_FORCESTALL; - td->did_stall = 1; - } - - /* clear interrupts, if any */ - if (temp) { - DPRINTFN(5, "clearing 0x%08x\n", temp); - AT91_CSR_ACK(csr, temp); - AT91_UDP_WRITE_4(sc, td->status_reg, csr); - } - return (1); /* not complete */ -} - -static uint8_t -at91dci_data_rx(struct at91dci_softc *sc, struct at91dci_td *td) -{ - struct usb_page_search buf_res; - uint32_t csr; - uint32_t temp; - uint16_t count; - uint8_t to; - uint8_t got_short; - - to = 2; /* don't loop forever! */ - got_short = 0; - - /* check if any of the FIFO banks have data */ -repeat: - /* read out FIFO status */ - csr = AT91_UDP_READ_4(sc, td->status_reg); - - DPRINTFN(5, "csr=0x%08x rem=%u\n", csr, td->remainder); - - if (csr & AT91_UDP_CSR_RXSETUP) { - if (td->remainder == 0) { - /* - * We are actually complete and have - * received the next SETUP - */ - DPRINTFN(5, "faking complete\n"); - return (0); /* complete */ - } - /* - * USB Host Aborted the transfer. - */ - td->error = 1; - return (0); /* complete */ - } - /* Make sure that "STALLSENT" gets cleared */ - temp = csr; - temp &= AT91_UDP_CSR_STALLSENT; - - /* check status */ - if (!(csr & (AT91_UDP_CSR_RX_DATA_BK0 | - AT91_UDP_CSR_RX_DATA_BK1))) { - if (temp) { - /* write command */ - AT91_CSR_ACK(csr, temp); - AT91_UDP_WRITE_4(sc, td->status_reg, csr); - } - return (1); /* not complete */ - } - /* get the packet byte count */ - count = (csr & AT91_UDP_CSR_RXBYTECNT) >> 16; - - /* verify the packet byte count */ - if (count != td->max_packet_size) { - if (count < td->max_packet_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) { - usbd_get_page(td->pc, td->offset, &buf_res); - - /* get correct length */ - if (buf_res.length > count) { - buf_res.length = count; - } - /* receive data */ - bus_space_read_multi_1(sc->sc_io_tag, sc->sc_io_hdl, - td->fifo_reg, 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 */ - if (td->support_multi_buffer) { - if (td->fifo_bank) { - td->fifo_bank = 0; - temp |= AT91_UDP_CSR_RX_DATA_BK1; - } else { - td->fifo_bank = 1; - temp |= AT91_UDP_CSR_RX_DATA_BK0; - } - } else { - temp |= (AT91_UDP_CSR_RX_DATA_BK0 | - AT91_UDP_CSR_RX_DATA_BK1); - } - - /* write command */ - AT91_CSR_ACK(csr, temp); - AT91_UDP_WRITE_4(sc, td->status_reg, csr); - - /* - * NOTE: We may have to delay a little bit before - * proceeding after clearing the DATA_BK bits. - */ - - /* check if we are complete */ - if ((td->remainder == 0) || got_short) { - if (td->short_pkt) { - /* we are complete */ - return (0); - } - /* else need to receive a zero length packet */ - } - if (--to) { - goto repeat; - } - return (1); /* not complete */ -} - -static uint8_t -at91dci_data_tx(struct at91dci_softc *sc, struct at91dci_td *td) -{ - struct usb_page_search buf_res; - uint32_t csr; - uint32_t temp; - uint16_t count; - uint8_t to; - - to = 2; /* don't loop forever! */ - -repeat: - - /* read out FIFO status */ - csr = AT91_UDP_READ_4(sc, td->status_reg); - - DPRINTFN(5, "csr=0x%08x rem=%u\n", csr, td->remainder); - - if (csr & AT91_UDP_CSR_RXSETUP) { - /* - * The current transfer was aborted - * by the USB Host - */ - td->error = 1; - return (0); /* complete */ - } - /* Make sure that "STALLSENT" gets cleared */ - temp = csr; - temp &= AT91_UDP_CSR_STALLSENT; - - if (csr & AT91_UDP_CSR_TXPKTRDY) { - if (temp) { - /* write command */ - AT91_CSR_ACK(csr, temp); - AT91_UDP_WRITE_4(sc, td->status_reg, csr); - } - return (1); /* not complete */ - } else { - /* clear TXCOMP and set TXPKTRDY */ - temp |= (AT91_UDP_CSR_TXCOMP | - AT91_UDP_CSR_TXPKTRDY); - } - - count = td->max_packet_size; - if (td->remainder < count) { - /* we have a short packet */ - td->short_pkt = 1; - count = td->remainder; - } - while (count > 0) { - usbd_get_page(td->pc, td->offset, &buf_res); - - /* get correct length */ - if (buf_res.length > count) { - buf_res.length = count; - } - /* transmit data */ - bus_space_write_multi_1(sc->sc_io_tag, sc->sc_io_hdl, - td->fifo_reg, buf_res.buffer, buf_res.length); - - /* update counters */ - count -= buf_res.length; - td->offset += buf_res.length; - td->remainder -= buf_res.length; - } - - /* write command */ - AT91_CSR_ACK(csr, temp); - AT91_UDP_WRITE_4(sc, td->status_reg, csr); - - /* check remainder */ - if (td->remainder == 0) { - if (td->short_pkt) { - return (0); /* complete */ - } - /* else we need to transmit a short packet */ - } - if (--to) { - goto repeat; - } - return (1); /* not complete */ -} - -static uint8_t -at91dci_data_tx_sync(struct at91dci_softc *sc, struct at91dci_td *td) -{ - uint32_t csr; - uint32_t temp; - - /* read out FIFO status */ - csr = AT91_UDP_READ_4(sc, td->status_reg); - - DPRINTFN(5, "csr=0x%08x\n", csr); - - if (csr & AT91_UDP_CSR_RXSETUP) { - DPRINTFN(5, "faking complete\n"); - /* Race condition */ - return (0); /* complete */ - } - temp = csr; - temp &= (AT91_UDP_CSR_STALLSENT | - AT91_UDP_CSR_TXCOMP); - - /* check status */ - if (csr & AT91_UDP_CSR_TXPKTRDY) { - goto not_complete; - } - if (!(csr & AT91_UDP_CSR_TXCOMP)) { - goto not_complete; - } - if (td->status_reg == AT91_UDP_CSR(0) && sc->sc_dv_addr != 0xFF) { - /* - * The AT91 has a special requirement with regard to - * setting the address and that is to write the new - * address before clearing TXCOMP: - */ - at91dci_set_address(sc, sc->sc_dv_addr); - } - /* write command */ - AT91_CSR_ACK(csr, temp); - AT91_UDP_WRITE_4(sc, td->status_reg, csr); - - return (0); /* complete */ - -not_complete: - if (temp) { - /* write command */ - AT91_CSR_ACK(csr, temp); - AT91_UDP_WRITE_4(sc, td->status_reg, csr); - } - return (1); /* not complete */ -} - -static void -at91dci_xfer_do_fifo(struct usb_xfer *xfer) -{ - struct at91dci_softc *sc = AT9100_DCI_BUS2SC(xfer->xroot->bus); - struct at91dci_td *td; - uint8_t temp; - - DPRINTFN(9, "\n"); - - td = xfer->td_transfer_cache; - if (td == NULL) - return; - - while (1) { - if ((td->func) (sc, 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 - */ - temp = 0; - if (td->fifo_bank) - temp |= 1; - td = td->obj_next; - xfer->td_transfer_cache = td; - if (temp & 1) - td->fifo_bank = 1; - } - return; - -done: - temp = (xfer->endpointno & UE_ADDR); - - /* update FIFO bank flag and multi buffer */ - if (td->fifo_bank) { - sc->sc_ep_flags[temp].fifo_bank = 1; - } else { - sc->sc_ep_flags[temp].fifo_bank = 0; - } - - /* compute all actual lengths */ - xfer->td_transfer_cache = NULL; - sc->sc_xfer_complete = 1; -} - -static uint8_t -at91dci_xfer_do_complete(struct usb_xfer *xfer) -{ - struct at91dci_td *td; - - DPRINTFN(9, "\n"); - td = xfer->td_transfer_cache; - if (td == NULL) { - /* compute all actual lengths */ - at91dci_standard_done(xfer); - return(1); - } - return (0); -} - -static void -at91dci_interrupt_poll_locked(struct at91dci_softc *sc) -{ - struct usb_xfer *xfer; - - TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) - at91dci_xfer_do_fifo(xfer); -} - -static void -at91dci_interrupt_complete_locked(struct at91dci_softc *sc) -{ - struct usb_xfer *xfer; -repeat: - TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) { - if (at91dci_xfer_do_complete(xfer)) - goto repeat; - } -} - -void -at91dci_vbus_interrupt(struct at91dci_softc *sc, uint8_t is_on) -{ - DPRINTFN(5, "vbus = %u\n", is_on); - - if (is_on) { - if (!sc->sc_flags.status_vbus) { - sc->sc_flags.status_vbus = 1; - - /* complete root HUB interrupt endpoint */ - at91dci_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 */ - at91dci_root_intr(sc); - } - } -} - -int -at91dci_filter_interrupt(void *arg) -{ - struct at91dci_softc *sc = arg; - int retval = FILTER_HANDLED; - uint32_t status; - - USB_BUS_SPIN_LOCK(&sc->sc_bus); - - status = AT91_UDP_READ_4(sc, AT91_UDP_ISR); - status &= AT91_UDP_INT_DEFAULT; - - if (status & AT9100_DCI_THREAD_IRQ) - retval = FILTER_SCHEDULE_THREAD; - - /* acknowledge interrupts */ - AT91_UDP_WRITE_4(sc, AT91_UDP_ICR, status & ~AT9100_DCI_THREAD_IRQ); - - /* poll FIFOs, if any */ - at91dci_interrupt_poll_locked(sc); - - if (sc->sc_xfer_complete != 0) - retval = FILTER_SCHEDULE_THREAD; - - USB_BUS_SPIN_UNLOCK(&sc->sc_bus); - - return (retval); -} - -void -at91dci_interrupt(void *arg) -{ - struct at91dci_softc *sc = arg; - uint32_t status; - - USB_BUS_LOCK(&sc->sc_bus); - USB_BUS_SPIN_LOCK(&sc->sc_bus); - - status = AT91_UDP_READ_4(sc, AT91_UDP_ISR); - status &= AT9100_DCI_THREAD_IRQ; - - /* acknowledge interrupts */ - - AT91_UDP_WRITE_4(sc, AT91_UDP_ICR, status); - - /* check for any bus state change interrupts */ - - if (status & AT91_UDP_INT_BUS) { - - DPRINTFN(5, "real bus interrupt 0x%08x\n", status); - - if (status & AT91_UDP_INT_END_BR) { - - /* 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; - - /* disable resume interrupt */ - AT91_UDP_WRITE_4(sc, AT91_UDP_IDR, - AT91_UDP_INT_RXRSM); - /* enable suspend interrupt */ - AT91_UDP_WRITE_4(sc, AT91_UDP_IER, - AT91_UDP_INT_RXSUSP); - } - /* - * 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 (status & AT91_UDP_INT_RXRSM) { - if (sc->sc_flags.status_suspend) { - sc->sc_flags.status_suspend = 0; - sc->sc_flags.change_suspend = 1; - - /* disable resume interrupt */ - AT91_UDP_WRITE_4(sc, AT91_UDP_IDR, - AT91_UDP_INT_RXRSM); - /* enable suspend interrupt */ - AT91_UDP_WRITE_4(sc, AT91_UDP_IER, - AT91_UDP_INT_RXSUSP); - } - } else if (status & AT91_UDP_INT_RXSUSP) { - if (!sc->sc_flags.status_suspend) { - sc->sc_flags.status_suspend = 1; - sc->sc_flags.change_suspend = 1; - - /* disable suspend interrupt */ - AT91_UDP_WRITE_4(sc, AT91_UDP_IDR, - AT91_UDP_INT_RXSUSP); - - /* enable resume interrupt */ - AT91_UDP_WRITE_4(sc, AT91_UDP_IER, - AT91_UDP_INT_RXRSM); - } - } - /* complete root HUB interrupt endpoint */ - at91dci_root_intr(sc); - } - - if (sc->sc_xfer_complete != 0) { - sc->sc_xfer_complete = 0; - at91dci_interrupt_complete_locked(sc); - } - USB_BUS_SPIN_UNLOCK(&sc->sc_bus); - USB_BUS_UNLOCK(&sc->sc_bus); -} - -static void -at91dci_setup_standard_chain_sub(struct at91dci_std_temp *temp) -{ - struct at91dci_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->fifo_bank = 0; - td->error = 0; - td->did_stall = temp->did_stall; - td->short_pkt = temp->short_pkt; - td->alt_next = temp->setup_alt_next; -} - -static void -at91dci_setup_standard_chain(struct usb_xfer *xfer) -{ - struct at91dci_std_temp temp; - struct at91dci_softc *sc; - struct at91dci_td *td; - uint32_t x; - uint8_t ep_no; - uint8_t need_sync; - - DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n", - xfer->address, UE_GET_ADDR(xfer->endpointno), - xfer->sumlen, usbd_get_speed(xfer->xroot->udev)); - - 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 */ - - 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; - - sc = AT9100_DCI_BUS2SC(xfer->xroot->bus); - ep_no = (xfer->endpointno & UE_ADDR); - - /* check if we should prepend a setup message */ - - if (xfer->flags_int.control_xfr) { - if (xfer->flags_int.control_hdr) { - - temp.func = &at91dci_setup_rx; - temp.len = xfer->frlengths[0]; - temp.pc = xfer->frbuffers + 0; - temp.short_pkt = temp.len ? 1 : 0; - /* check for last frame */ - if (xfer->nframes == 1) { - /* no STATUS stage yet, SETUP is last */ - if (xfer->flags_int.control_act) - temp.setup_alt_next = 0; - } - - at91dci_setup_standard_chain_sub(&temp); - } - x = 1; - } else { - x = 0; - } - - if (x != xfer->nframes) { - if (xfer->endpointno & UE_DIR_IN) { - temp.func = &at91dci_data_tx; - need_sync = 1; - } else { - temp.func = &at91dci_data_rx; - need_sync = 0; - } - - /* setup "pc" pointer */ - temp.pc = xfer->frbuffers + x; - } else { - need_sync = 0; - } - 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 { - - /* regular data transfer */ - - temp.short_pkt = (xfer->flags.force_short_xfer) ? 0 : 1; - } - - at91dci_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 need to sync */ - if (need_sync) { - /* we need a SYNC point after TX */ - temp.func = &at91dci_data_tx_sync; - at91dci_setup_standard_chain_sub(&temp); - } - - /* 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 (xfer->endpointno & UE_DIR_IN) { - temp.func = &at91dci_data_rx; - need_sync = 0; - } else { - temp.func = &at91dci_data_tx; - need_sync = 1; - } - - at91dci_setup_standard_chain_sub(&temp); - if (need_sync) { - /* we need a SYNC point after TX */ - temp.func = &at91dci_data_tx_sync; - at91dci_setup_standard_chain_sub(&temp); - } - } - } - - /* must have at least one frame! */ - td = temp.td; - xfer->td_transfer_last = td; - - /* setup the correct fifo bank */ - if (sc->sc_ep_flags[ep_no].fifo_bank) { - td = xfer->td_transfer_first; - td->fifo_bank = 1; - } -} - -static void -at91dci_timeout(void *arg) -{ - struct usb_xfer *xfer = arg; - - DPRINTF("xfer=%p\n", xfer); - - USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED); - - /* transfer is transferred */ - at91dci_device_done(xfer, USB_ERR_TIMEOUT); -} - -static void -at91dci_start_standard_chain(struct usb_xfer *xfer) -{ - struct at91dci_softc *sc = AT9100_DCI_BUS2SC(xfer->xroot->bus); - - DPRINTFN(9, "\n"); - - USB_BUS_SPIN_LOCK(&sc->sc_bus); - - /* poll one time */ - at91dci_xfer_do_fifo(xfer); - - if (at91dci_xfer_do_complete(xfer) == 0) { - - uint8_t ep_no = xfer->endpointno & UE_ADDR; - - /* - * Only enable the endpoint interrupt when we are actually - * waiting for data, hence we are dealing with level - * triggered interrupts ! - */ - AT91_UDP_WRITE_4(sc, AT91_UDP_IER, AT91_UDP_INT_EP(ep_no)); - - DPRINTFN(15, "enable interrupts on endpoint %d\n", ep_no); - - /* 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, - &at91dci_timeout, xfer->timeout); - } - } - USB_BUS_SPIN_UNLOCK(&sc->sc_bus); -} - -static void -at91dci_root_intr(struct at91dci_softc *sc) -{ - DPRINTFN(9, "\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 -at91dci_standard_done_sub(struct usb_xfer *xfer) -{ - struct at91dci_td *td; - uint32_t len; - uint8_t error; - - DPRINTFN(9, "\n"); - - td = xfer->td_transfer_cache; - - do { - len = td->remainder; - - 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 -at91dci_standard_done(struct usb_xfer *xfer) -{ - usb_error_t err = 0; - - DPRINTFN(13, "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 = at91dci_standard_done_sub(xfer); - } - xfer->aframes = 1; - - if (xfer->td_transfer_cache == NULL) { - goto done; - } - } - while (xfer->aframes != xfer->nframes) { - - err = at91dci_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 = at91dci_standard_done_sub(xfer); - } -done: - at91dci_device_done(xfer, err); -} - -/*------------------------------------------------------------------------* - * at91dci_device_done - * - * NOTE: this function can be called more than one time on the - * same USB transfer! - *------------------------------------------------------------------------*/ -static void -at91dci_device_done(struct usb_xfer *xfer, usb_error_t error) -{ - struct at91dci_softc *sc = AT9100_DCI_BUS2SC(xfer->xroot->bus); - uint8_t ep_no; - - USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); - - DPRINTFN(2, "xfer=%p, endpoint=%p, error=%d\n", - xfer, xfer->endpoint, error); - - USB_BUS_SPIN_LOCK(&sc->sc_bus); - - if (xfer->flags_int.usb_mode == USB_MODE_DEVICE) { - ep_no = (xfer->endpointno & UE_ADDR); - - /* disable endpoint interrupt */ - AT91_UDP_WRITE_4(sc, AT91_UDP_IDR, AT91_UDP_INT_EP(ep_no)); - - DPRINTFN(15, "disable interrupts on endpoint %d\n", ep_no); - } - - /* dequeue transfer and start next transfer */ - usbd_transfer_done(xfer, error); - - USB_BUS_SPIN_UNLOCK(&sc->sc_bus); -} - -static void -at91dci_xfer_stall(struct usb_xfer *xfer) -{ - at91dci_device_done(xfer, USB_ERR_STALLED); -} - -static void -at91dci_set_stall(struct usb_device *udev, - struct usb_endpoint *ep, uint8_t *did_stall) -{ - struct at91dci_softc *sc; - uint32_t csr_val; - uint8_t csr_reg; - - USB_BUS_LOCK_ASSERT(udev->bus, MA_OWNED); - - DPRINTFN(5, "endpoint=%p\n", ep); - - /* set FORCESTALL */ - sc = AT9100_DCI_BUS2SC(udev->bus); - - USB_BUS_SPIN_LOCK(&sc->sc_bus); - csr_reg = (ep->edesc->bEndpointAddress & UE_ADDR); - csr_reg = AT91_UDP_CSR(csr_reg); - csr_val = AT91_UDP_READ_4(sc, csr_reg); - AT91_CSR_ACK(csr_val, AT91_UDP_CSR_FORCESTALL); - AT91_UDP_WRITE_4(sc, csr_reg, csr_val); - USB_BUS_SPIN_UNLOCK(&sc->sc_bus); -} - -static void -at91dci_clear_stall_sub(struct at91dci_softc *sc, uint8_t ep_no, - uint8_t ep_type, uint8_t ep_dir) -{ - const struct usb_hw_ep_profile *pf; - uint32_t csr_val; - uint32_t temp; - uint8_t csr_reg; - uint8_t to; - - if (ep_type == UE_CONTROL) { - /* clearing stall is not needed */ - return; - } - - USB_BUS_SPIN_LOCK(&sc->sc_bus); - - /* compute CSR register offset */ - csr_reg = AT91_UDP_CSR(ep_no); - - /* compute default CSR value */ - csr_val = 0; - AT91_CSR_ACK(csr_val, 0); - - /* disable endpoint */ - AT91_UDP_WRITE_4(sc, csr_reg, csr_val); - - /* get endpoint profile */ - at91dci_get_hw_ep_profile(NULL, &pf, ep_no); - - /* reset FIFO */ - AT91_UDP_WRITE_4(sc, AT91_UDP_RST, AT91_UDP_RST_EP(ep_no)); - AT91_UDP_WRITE_4(sc, AT91_UDP_RST, 0); - - /* - * NOTE: One would assume that a FIFO reset would release the - * FIFO banks as well, but it doesn't! We have to do this - * manually! - */ - - /* release FIFO banks, if any */ - for (to = 0; to != 2; to++) { - - /* get csr value */ - csr_val = AT91_UDP_READ_4(sc, csr_reg); - - if (csr_val & (AT91_UDP_CSR_RX_DATA_BK0 | - AT91_UDP_CSR_RX_DATA_BK1)) { - /* clear status bits */ - if (pf->support_multi_buffer) { - if (sc->sc_ep_flags[ep_no].fifo_bank) { - sc->sc_ep_flags[ep_no].fifo_bank = 0; - temp = AT91_UDP_CSR_RX_DATA_BK1; - } else { - sc->sc_ep_flags[ep_no].fifo_bank = 1; - temp = AT91_UDP_CSR_RX_DATA_BK0; - } - } else { - temp = (AT91_UDP_CSR_RX_DATA_BK0 | - AT91_UDP_CSR_RX_DATA_BK1); - } - } else { - temp = 0; - } - - /* clear FORCESTALL */ - temp |= AT91_UDP_CSR_STALLSENT; - - AT91_CSR_ACK(csr_val, temp); - AT91_UDP_WRITE_4(sc, csr_reg, csr_val); - } - - /* compute default CSR value */ - csr_val = 0; - AT91_CSR_ACK(csr_val, 0); - - /* enable endpoint */ - csr_val &= ~AT91_UDP_CSR_ET_MASK; - csr_val |= AT91_UDP_CSR_EPEDS; - - if (ep_type == UE_CONTROL) { - csr_val |= AT91_UDP_CSR_ET_CTRL; - } else { - if (ep_type == UE_BULK) { - csr_val |= AT91_UDP_CSR_ET_BULK; - } else if (ep_type == UE_INTERRUPT) { - csr_val |= AT91_UDP_CSR_ET_INT; - } else { - csr_val |= AT91_UDP_CSR_ET_ISO; - } - if (ep_dir & UE_DIR_IN) { - csr_val |= AT91_UDP_CSR_ET_DIR_IN; - } - } - - /* enable endpoint */ - AT91_UDP_WRITE_4(sc, AT91_UDP_CSR(ep_no), csr_val); - - USB_BUS_SPIN_UNLOCK(&sc->sc_bus); -} - -static void -at91dci_clear_stall(struct usb_device *udev, struct usb_endpoint *ep) -{ - struct at91dci_softc *sc; - struct usb_endpoint_descriptor *ed; - - DPRINTFN(5, "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 = AT9100_DCI_BUS2SC(udev->bus); - - /* get endpoint descriptor */ - ed = ep->edesc; - - /* reset endpoint */ - at91dci_clear_stall_sub(sc, - (ed->bEndpointAddress & UE_ADDR), - (ed->bmAttributes & UE_XFERTYPE), - (ed->bEndpointAddress & (UE_DIR_IN | UE_DIR_OUT))); -} - -usb_error_t -at91dci_init(struct at91dci_softc *sc) -{ - uint32_t csr_val; - uint8_t n; - - DPRINTF("start\n"); - - /* set up the bus structure */ - sc->sc_bus.usbrev = USB_REV_1_1; - sc->sc_bus.methods = &at91dci_bus_methods; - - 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 and clear all interrupts */ - - AT91_UDP_WRITE_4(sc, AT91_UDP_IDR, 0xFFFFFFFF); - AT91_UDP_WRITE_4(sc, AT91_UDP_ICR, 0xFFFFFFFF); - - /* compute default CSR value */ - - csr_val = 0; - AT91_CSR_ACK(csr_val, 0); - - /* disable all endpoints */ - - for (n = 0; n != AT91_UDP_EP_MAX; n++) { - - /* disable endpoint */ - AT91_UDP_WRITE_4(sc, AT91_UDP_CSR(n), csr_val); - } - - /* enable the control endpoint */ - - AT91_CSR_ACK(csr_val, AT91_UDP_CSR_ET_CTRL | - AT91_UDP_CSR_EPEDS); - - /* write to FIFO control register */ - - AT91_UDP_WRITE_4(sc, AT91_UDP_CSR(0), csr_val); - - /* enable the interrupts we want */ - - AT91_UDP_WRITE_4(sc, AT91_UDP_IER, AT91_UDP_INT_BUS); - - /* turn off clocks */ - - at91dci_clocks_off(sc); - - USB_BUS_UNLOCK(&sc->sc_bus); - - /* catch any lost interrupts */ - - at91dci_do_poll(&sc->sc_bus); - - return (0); /* success */ -} - -void -at91dci_uninit(struct at91dci_softc *sc) -{ - USB_BUS_LOCK(&sc->sc_bus); - - /* disable and clear all interrupts */ - AT91_UDP_WRITE_4(sc, AT91_UDP_IDR, 0xFFFFFFFF); - AT91_UDP_WRITE_4(sc, AT91_UDP_ICR, 0xFFFFFFFF); - - 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; - - at91dci_pull_down(sc); - at91dci_clocks_off(sc); - USB_BUS_UNLOCK(&sc->sc_bus); -} - -static void -at91dci_suspend(struct at91dci_softc *sc) -{ - /* TODO */ -} - -static void -at91dci_resume(struct at91dci_softc *sc) -{ - /* TODO */ -} - -static void -at91dci_do_poll(struct usb_bus *bus) -{ - struct at91dci_softc *sc = AT9100_DCI_BUS2SC(bus); - - USB_BUS_LOCK(&sc->sc_bus); - USB_BUS_SPIN_LOCK(&sc->sc_bus); - at91dci_interrupt_poll_locked(sc); - at91dci_interrupt_complete_locked(sc); - USB_BUS_SPIN_UNLOCK(&sc->sc_bus); - USB_BUS_UNLOCK(&sc->sc_bus); -} - -/*------------------------------------------------------------------------* - * at91dci bulk support - *------------------------------------------------------------------------*/ -static void -at91dci_device_bulk_open(struct usb_xfer *xfer) -{ - return; -} - -static void -at91dci_device_bulk_close(struct usb_xfer *xfer) -{ - at91dci_device_done(xfer, USB_ERR_CANCELLED); -} - -static void -at91dci_device_bulk_enter(struct usb_xfer *xfer) -{ - return; -} - -static void -at91dci_device_bulk_start(struct usb_xfer *xfer) -{ - /* setup TDs */ - at91dci_setup_standard_chain(xfer); - at91dci_start_standard_chain(xfer); -} - -static const struct usb_pipe_methods at91dci_device_bulk_methods = -{ - .open = at91dci_device_bulk_open, - .close = at91dci_device_bulk_close, - .enter = at91dci_device_bulk_enter, - .start = at91dci_device_bulk_start, -}; - -/*------------------------------------------------------------------------* - * at91dci control support - *------------------------------------------------------------------------*/ -static void -at91dci_device_ctrl_open(struct usb_xfer *xfer) -{ - return; -} - -static void -at91dci_device_ctrl_close(struct usb_xfer *xfer) -{ - at91dci_device_done(xfer, USB_ERR_CANCELLED); -} - -static void -at91dci_device_ctrl_enter(struct usb_xfer *xfer) -{ - return; -} - -static void -at91dci_device_ctrl_start(struct usb_xfer *xfer) -{ - /* setup TDs */ - at91dci_setup_standard_chain(xfer); - at91dci_start_standard_chain(xfer); -} - -static const struct usb_pipe_methods at91dci_device_ctrl_methods = -{ - .open = at91dci_device_ctrl_open, - .close = at91dci_device_ctrl_close, - .enter = at91dci_device_ctrl_enter, - .start = at91dci_device_ctrl_start, -}; - -/*------------------------------------------------------------------------* - * at91dci interrupt support - *------------------------------------------------------------------------*/ -static void -at91dci_device_intr_open(struct usb_xfer *xfer) -{ - return; -} - -static void -at91dci_device_intr_close(struct usb_xfer *xfer) -{ - at91dci_device_done(xfer, USB_ERR_CANCELLED); -} - -static void -at91dci_device_intr_enter(struct usb_xfer *xfer) -{ - return; -} - -static void -at91dci_device_intr_start(struct usb_xfer *xfer) -{ - /* setup TDs */ - at91dci_setup_standard_chain(xfer); - at91dci_start_standard_chain(xfer); -} - -static const struct usb_pipe_methods at91dci_device_intr_methods = -{ - .open = at91dci_device_intr_open, - .close = at91dci_device_intr_close, - .enter = at91dci_device_intr_enter, - .start = at91dci_device_intr_start, -}; - -/*------------------------------------------------------------------------* - * at91dci full speed isochronous support - *------------------------------------------------------------------------*/ -static void -at91dci_device_isoc_fs_open(struct usb_xfer *xfer) -{ - return; -} - -static void -at91dci_device_isoc_fs_close(struct usb_xfer *xfer) -{ - at91dci_device_done(xfer, USB_ERR_CANCELLED); -} - -static void -at91dci_device_isoc_fs_enter(struct usb_xfer *xfer) -{ - struct at91dci_softc *sc = AT9100_DCI_BUS2SC(xfer->xroot->bus); - uint32_t temp; - uint32_t nframes; - - DPRINTFN(6, "xfer=%p next=%d nframes=%d\n", - xfer, xfer->endpoint->isoc_next, xfer->nframes); - - /* get the current frame index */ - - nframes = AT91_UDP_READ_4(sc, AT91_UDP_FRM); - - /* - * check if the frame index is within the window where the frames - * will be inserted - */ - temp = (nframes - xfer->endpoint->isoc_next) & AT91_UDP_FRM_MASK; - - if ((xfer->endpoint->is_synced == 0) || - (temp < xfer->nframes)) { - /* - * If there is data underflow or the endpoint queue is - * empty we schedule the transfer a few frames ahead - * of the current frame position. Else two isochronous - * transfers might overlap. - */ - xfer->endpoint->isoc_next = (nframes + 3) & AT91_UDP_FRM_MASK; - xfer->endpoint->is_synced = 1; - DPRINTFN(3, "start next=%d\n", xfer->endpoint->isoc_next); - } - /* - * compute how many milliseconds the insertion is ahead of the - * current frame position: - */ - temp = (xfer->endpoint->isoc_next - nframes) & AT91_UDP_FRM_MASK; - - /* - * pre-compute when the isochronous transfer will be finished: - */ - xfer->isoc_time_complete = - usb_isoc_time_expand(&sc->sc_bus, nframes) + temp + - xfer->nframes; - - /* compute frame number for next insertion */ - xfer->endpoint->isoc_next += xfer->nframes; - - /* setup TDs */ - at91dci_setup_standard_chain(xfer); -} - -static void -at91dci_device_isoc_fs_start(struct usb_xfer *xfer) -{ - /* start TD chain */ - at91dci_start_standard_chain(xfer); -} - -static const struct usb_pipe_methods at91dci_device_isoc_fs_methods = -{ - .open = at91dci_device_isoc_fs_open, - .close = at91dci_device_isoc_fs_close, - .enter = at91dci_device_isoc_fs_enter, - .start = at91dci_device_isoc_fs_start, -}; - -/*------------------------------------------------------------------------* - * at91dci root control support - *------------------------------------------------------------------------* - * Simulate a hardware HUB by handling all the necessary requests. - *------------------------------------------------------------------------*/ - -static const struct usb_device_descriptor at91dci_devd = { - .bLength = sizeof(struct usb_device_descriptor), - .bDescriptorType = UDESC_DEVICE, - .bcdUSB = {0x00, 0x02}, - .bDeviceClass = UDCLASS_HUB, - .bDeviceSubClass = UDSUBCLASS_HUB, - .bDeviceProtocol = UDPROTO_FSHUB, - .bMaxPacketSize = 64, - .bcdDevice = {0x00, 0x01}, - .iManufacturer = 1, - .iProduct = 2, - .bNumConfigurations = 1, -}; - -static const struct at91dci_config_desc at91dci_confd = { - .confd = { - .bLength = sizeof(struct usb_config_descriptor), - .bDescriptorType = UDESC_CONFIG, - .wTotalLength[0] = sizeof(at91dci_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 | AT9100_DCI_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 at91dci_hubd = { - .bDescLength = sizeof(at91dci_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 \ - "A\0T\0M\0E\0L" - -#define STRING_PRODUCT \ - "D\0C\0I\0 \0R\0o\0o\0t\0 \0H\0U\0B" - -USB_MAKE_STRING_DESC(STRING_VENDOR, at91dci_vendor); -USB_MAKE_STRING_DESC(STRING_PRODUCT, at91dci_product); - -static usb_error_t -at91dci_roothub_exec(struct usb_device *udev, - struct usb_device_request *req, const void **pptr, uint16_t *plength) -{ - struct at91dci_softc *sc = AT9100_DCI_BUS2SC(udev->bus); - const void *ptr; - uint16_t len; - uint16_t value; - uint16_t index; - 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(at91dci_devd); - ptr = (const void *)&at91dci_devd; - goto tr_valid; - case UDESC_CONFIG: - if (value & 0xff) { - goto tr_stalled; - } - len = sizeof(at91dci_confd); - ptr = (const void *)&at91dci_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(at91dci_vendor); - ptr = (const void *)&at91dci_vendor; - goto tr_valid; - - case 2: /* Product */ - len = sizeof(at91dci_product); - ptr = (const void *)&at91dci_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(9, "UR_CLEAR_PORT_FEATURE on port %d\n", index); - - switch (value) { - case UHF_PORT_SUSPEND: - at91dci_wakeup_peer(sc); - break; - - case UHF_PORT_ENABLE: - sc->sc_flags.port_enabled = 0; - break; - - case UHF_PORT_TEST: - case UHF_PORT_INDICATOR: - case UHF_C_PORT_ENABLE: - case UHF_C_PORT_OVER_CURRENT: - case UHF_C_PORT_RESET: - /* nops */ - break; - case UHF_PORT_POWER: - sc->sc_flags.port_powered = 0; - at91dci_pull_down(sc); - at91dci_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(9, "UR_SET_PORT_FEATURE\n"); - - switch (value) { - case UHF_PORT_ENABLE: - sc->sc_flags.port_enabled = 1; - break; - case UHF_PORT_SUSPEND: - case UHF_PORT_RESET: - 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(9, "UR_GET_PORT_STATUS\n"); - - if (index != 1) { - goto tr_stalled; - } - if (sc->sc_flags.status_vbus) { - at91dci_clocks_on(sc); - at91dci_pull_up(sc); - } else { - at91dci_pull_down(sc); - at91dci_clocks_off(sc); - } - - /* Select FULL-speed and Device Side Mode */ - - value = UPS_PORT_MODE_DEVICE; - - if (sc->sc_flags.port_powered) { - value |= UPS_PORT_POWER; - } - if (sc->sc_flags.port_enabled) { - value |= UPS_PORT_ENABLED; - } - 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_flags.status_vbus && - sc->sc_flags.status_bus_reset) { - /* reset endpoint flags */ - memset(sc->sc_ep_flags, 0, sizeof(sc->sc_ep_flags)); - } - } - if (sc->sc_flags.change_suspend) { - value |= UPS_C_SUSPEND; - } - 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 *)&at91dci_hubd; - len = sizeof(at91dci_hubd); - goto tr_valid; - -tr_stalled: - err = USB_ERR_STALLED; -tr_valid: -done: - *plength = len; - *pptr = ptr; - return (err); -} - -static void -at91dci_xfer_setup(struct usb_setup_params *parm) -{ - const struct usb_hw_ep_profile *pf; - struct at91dci_softc *sc; - struct usb_xfer *xfer; - void *last_obj; - uint32_t ntd; - uint32_t n; - uint8_t ep_no; - - sc = AT9100_DCI_BUS2SC(parm->udev->bus); - 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 = 0x500; - parm->hc_max_packet_count = 1; - parm->hc_max_frame_size = 0x500; - - usbd_transfer_setup_sub(parm); - - /* - * compute maximum number of TDs - */ - if (parm->methods == &at91dci_device_ctrl_methods) { - - ntd = xfer->nframes + 1 /* STATUS */ + 1 /* SYNC 1 */ - + 1 /* SYNC 2 */ ; - - } else if (parm->methods == &at91dci_device_bulk_methods) { - - ntd = xfer->nframes + 1 /* SYNC */ ; - - } else if (parm->methods == &at91dci_device_intr_methods) { - - ntd = xfer->nframes + 1 /* SYNC */ ; - - } else if (parm->methods == &at91dci_device_isoc_fs_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; - - /* - * get profile stuff - */ - if (ntd) { - - ep_no = xfer->endpointno & UE_ADDR; - at91dci_get_hw_ep_profile(parm->udev, &pf, ep_no); - - if (pf == NULL) { - /* should not happen */ - parm->err = USB_ERR_INVAL; - return; - } - } else { - ep_no = 0; - pf = NULL; - } - - /* align data */ - parm->size[0] += ((-parm->size[0]) & (USB_HOST_ALIGN - 1)); - - for (n = 0; n != ntd; n++) { - - struct at91dci_td *td; - - if (parm->buf) { - - td = USB_ADD_BYTES(parm->buf, parm->size[0]); - - /* init TD */ - td->max_packet_size = xfer->max_packet_size; - td->status_reg = AT91_UDP_CSR(ep_no); - td->fifo_reg = AT91_UDP_FDR(ep_no); - if (pf->support_multi_buffer) { - td->support_multi_buffer = 1; - } - td->obj_next = last_obj; - - last_obj = td; - } - parm->size[0] += sizeof(*td); - } - - xfer->td_start[0] = last_obj; -} - -static void -at91dci_xfer_unsetup(struct usb_xfer *xfer) -{ - return; -} - -static void -at91dci_ep_init(struct usb_device *udev, struct usb_endpoint_descriptor *edesc, - struct usb_endpoint *ep) -{ - struct at91dci_softc *sc = AT9100_DCI_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) { - - if (udev->speed != USB_SPEED_FULL) { - /* not supported */ - return; - } - switch (edesc->bmAttributes & UE_XFERTYPE) { - case UE_CONTROL: - ep->methods = &at91dci_device_ctrl_methods; - break; - case UE_INTERRUPT: - ep->methods = &at91dci_device_intr_methods; - break; - case UE_ISOCHRONOUS: - ep->methods = &at91dci_device_isoc_fs_methods; - break; - case UE_BULK: - ep->methods = &at91dci_device_bulk_methods; - break; - default: - /* do nothing */ - break; - } - } -} - -static void -at91dci_set_hw_power_sleep(struct usb_bus *bus, uint32_t state) -{ - struct at91dci_softc *sc = AT9100_DCI_BUS2SC(bus); - - switch (state) { - case USB_HW_POWER_SUSPEND: - at91dci_suspend(sc); - break; - case USB_HW_POWER_SHUTDOWN: - at91dci_uninit(sc); - break; - case USB_HW_POWER_RESUME: - at91dci_resume(sc); - break; - default: - break; - } -} - -static const struct usb_bus_methods at91dci_bus_methods = -{ - .endpoint_init = &at91dci_ep_init, - .xfer_setup = &at91dci_xfer_setup, - .xfer_unsetup = &at91dci_xfer_unsetup, - .get_hw_ep_profile = &at91dci_get_hw_ep_profile, - .set_stall = &at91dci_set_stall, - .xfer_stall = &at91dci_xfer_stall, - .clear_stall = &at91dci_clear_stall, - .roothub_exec = &at91dci_roothub_exec, - .xfer_poll = &at91dci_do_poll, - .set_hw_power_sleep = &at91dci_set_hw_power_sleep, -}; |