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-rw-r--r--sys/dev/usb2/controller/ohci2.c2862
1 files changed, 0 insertions, 2862 deletions
diff --git a/sys/dev/usb2/controller/ohci2.c b/sys/dev/usb2/controller/ohci2.c
deleted file mode 100644
index 4c65ea7..0000000
--- a/sys/dev/usb2/controller/ohci2.c
+++ /dev/null
@@ -1,2862 +0,0 @@
-/*-
- * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
- * Copyright (c) 1998 The NetBSD Foundation, Inc. All rights reserved.
- * Copyright (c) 1998 Lennart Augustsson. 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.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-/*
- * USB Open Host Controller driver.
- *
- * OHCI spec: http://www.compaq.com/productinfo/development/openhci.html
- * USB spec: http://www.usb.org/developers/docs/usbspec.zip
- */
-
-#include <dev/usb2/include/usb2_standard.h>
-#include <dev/usb2/include/usb2_mfunc.h>
-#include <dev/usb2/include/usb2_error.h>
-#include <dev/usb2/include/usb2_defs.h>
-
-#define USB_DEBUG_VAR ohcidebug
-
-#include <dev/usb2/core/usb2_core.h>
-#include <dev/usb2/core/usb2_debug.h>
-#include <dev/usb2/core/usb2_busdma.h>
-#include <dev/usb2/core/usb2_process.h>
-#include <dev/usb2/core/usb2_sw_transfer.h>
-#include <dev/usb2/core/usb2_transfer.h>
-#include <dev/usb2/core/usb2_device.h>
-#include <dev/usb2/core/usb2_hub.h>
-#include <dev/usb2/core/usb2_util.h>
-
-#include <dev/usb2/controller/usb2_controller.h>
-#include <dev/usb2/controller/usb2_bus.h>
-#include <dev/usb2/controller/ohci2.h>
-
-#define OHCI_BUS2SC(bus) ((ohci_softc_t *)(((uint8_t *)(bus)) - \
- USB_P2U(&(((ohci_softc_t *)0)->sc_bus))))
-
-#if USB_DEBUG
-static int ohcidebug = 0;
-
-SYSCTL_NODE(_hw_usb2, OID_AUTO, ohci, CTLFLAG_RW, 0, "USB ohci");
-SYSCTL_INT(_hw_usb2_ohci, OID_AUTO, debug, CTLFLAG_RW,
- &ohcidebug, 0, "ohci debug level");
-static void ohci_dumpregs(ohci_softc_t *);
-static void ohci_dump_tds(ohci_td_t *);
-static uint8_t ohci_dump_td(ohci_td_t *);
-static void ohci_dump_ed(ohci_ed_t *);
-static uint8_t ohci_dump_itd(ohci_itd_t *);
-static void ohci_dump_itds(ohci_itd_t *);
-
-#endif
-
-#define OBARR(sc) bus_space_barrier((sc)->sc_io_tag, (sc)->sc_io_hdl, 0, (sc)->sc_io_size, \
- BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE)
-#define OWRITE1(sc, r, x) \
- do { OBARR(sc); bus_space_write_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (r), (x)); } while (0)
-#define OWRITE2(sc, r, x) \
- do { OBARR(sc); bus_space_write_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (r), (x)); } while (0)
-#define OWRITE4(sc, r, x) \
- do { OBARR(sc); bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (r), (x)); } while (0)
-#define OREAD1(sc, r) (OBARR(sc), bus_space_read_1((sc)->sc_io_tag, (sc)->sc_io_hdl, (r)))
-#define OREAD2(sc, r) (OBARR(sc), bus_space_read_2((sc)->sc_io_tag, (sc)->sc_io_hdl, (r)))
-#define OREAD4(sc, r) (OBARR(sc), bus_space_read_4((sc)->sc_io_tag, (sc)->sc_io_hdl, (r)))
-
-#define OHCI_INTR_ENDPT 1
-
-extern struct usb2_bus_methods ohci_bus_methods;
-extern struct usb2_pipe_methods ohci_device_bulk_methods;
-extern struct usb2_pipe_methods ohci_device_ctrl_methods;
-extern struct usb2_pipe_methods ohci_device_intr_methods;
-extern struct usb2_pipe_methods ohci_device_isoc_methods;
-extern struct usb2_pipe_methods ohci_root_ctrl_methods;
-extern struct usb2_pipe_methods ohci_root_intr_methods;
-
-static void ohci_root_ctrl_poll(struct ohci_softc *sc);
-static void ohci_do_poll(struct usb2_bus *bus);
-static void ohci_device_done(struct usb2_xfer *xfer, usb2_error_t error);
-
-static usb2_sw_transfer_func_t ohci_root_intr_done;
-static usb2_sw_transfer_func_t ohci_root_ctrl_done;
-static void ohci_timeout(void *arg);
-static uint8_t ohci_check_transfer(struct usb2_xfer *xfer);
-
-struct ohci_std_temp {
- struct usb2_page_cache *pc;
- ohci_td_t *td;
- ohci_td_t *td_next;
- uint32_t average;
- uint32_t td_flags;
- uint32_t len;
- uint16_t max_frame_size;
- uint8_t shortpkt;
- uint8_t setup_alt_next;
- uint8_t short_frames_ok;
-};
-
-static struct ohci_hcca *
-ohci_get_hcca(ohci_softc_t *sc)
-{
- usb2_pc_cpu_invalidate(&sc->sc_hw.hcca_pc);
- return (sc->sc_hcca_p);
-}
-
-void
-ohci_iterate_hw_softc(struct usb2_bus *bus, usb2_bus_mem_sub_cb_t *cb)
-{
- struct ohci_softc *sc = OHCI_BUS2SC(bus);
- uint32_t i;
-
- cb(bus, &sc->sc_hw.hcca_pc, &sc->sc_hw.hcca_pg,
- sizeof(ohci_hcca_t), OHCI_HCCA_ALIGN);
-
- cb(bus, &sc->sc_hw.ctrl_start_pc, &sc->sc_hw.ctrl_start_pg,
- sizeof(ohci_ed_t), OHCI_ED_ALIGN);
-
- cb(bus, &sc->sc_hw.bulk_start_pc, &sc->sc_hw.bulk_start_pg,
- sizeof(ohci_ed_t), OHCI_ED_ALIGN);
-
- cb(bus, &sc->sc_hw.isoc_start_pc, &sc->sc_hw.isoc_start_pg,
- sizeof(ohci_ed_t), OHCI_ED_ALIGN);
-
- for (i = 0; i != OHCI_NO_EDS; i++) {
- cb(bus, sc->sc_hw.intr_start_pc + i, sc->sc_hw.intr_start_pg + i,
- sizeof(ohci_ed_t), OHCI_ED_ALIGN);
- }
-}
-
-static usb2_error_t
-ohci_controller_init(ohci_softc_t *sc)
-{
- struct usb2_page_search buf_res;
- uint32_t i;
- uint32_t ctl;
- uint32_t ival;
- uint32_t hcr;
- uint32_t fm;
- uint32_t per;
- uint32_t desca;
-
- /* Determine in what context we are running. */
- ctl = OREAD4(sc, OHCI_CONTROL);
- if (ctl & OHCI_IR) {
- /* SMM active, request change */
- DPRINTF("SMM active, request owner change\n");
- OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_OCR);
- for (i = 0; (i < 100) && (ctl & OHCI_IR); i++) {
- usb2_pause_mtx(NULL, hz / 1000);
- ctl = OREAD4(sc, OHCI_CONTROL);
- }
- if (ctl & OHCI_IR) {
- device_printf(sc->sc_bus.bdev,
- "SMM does not respond, resetting\n");
- OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET);
- goto reset;
- }
- } else {
- DPRINTF("cold started\n");
-reset:
- /* controller was cold started */
- usb2_pause_mtx(NULL,
- USB_MS_TO_TICKS(USB_BUS_RESET_DELAY));
- }
-
- /*
- * This reset should not be necessary according to the OHCI spec, but
- * without it some controllers do not start.
- */
- DPRINTF("%s: resetting\n", device_get_nameunit(sc->sc_bus.bdev));
- OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET);
-
- usb2_pause_mtx(NULL,
- USB_MS_TO_TICKS(USB_BUS_RESET_DELAY));
-
- /* we now own the host controller and the bus has been reset */
- ival = OHCI_GET_IVAL(OREAD4(sc, OHCI_FM_INTERVAL));
-
- OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_HCR); /* Reset HC */
- /* nominal time for a reset is 10 us */
- for (i = 0; i < 10; i++) {
- DELAY(10);
- hcr = OREAD4(sc, OHCI_COMMAND_STATUS) & OHCI_HCR;
- if (!hcr) {
- break;
- }
- }
- if (hcr) {
- device_printf(sc->sc_bus.bdev, "reset timeout\n");
- return (USB_ERR_IOERROR);
- }
-#if USB_DEBUG
- if (ohcidebug > 15) {
- ohci_dumpregs(sc);
- }
-#endif
-
- /* The controller is now in SUSPEND state, we have 2ms to finish. */
-
- /* set up HC registers */
- usb2_get_page(&sc->sc_hw.hcca_pc, 0, &buf_res);
- OWRITE4(sc, OHCI_HCCA, buf_res.physaddr);
-
- usb2_get_page(&sc->sc_hw.ctrl_start_pc, 0, &buf_res);
- OWRITE4(sc, OHCI_CONTROL_HEAD_ED, buf_res.physaddr);
-
- usb2_get_page(&sc->sc_hw.bulk_start_pc, 0, &buf_res);
- OWRITE4(sc, OHCI_BULK_HEAD_ED, buf_res.physaddr);
-
- /* disable all interrupts and then switch on all desired interrupts */
- OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS);
- OWRITE4(sc, OHCI_INTERRUPT_ENABLE, sc->sc_eintrs | OHCI_MIE);
- /* switch on desired functional features */
- ctl = OREAD4(sc, OHCI_CONTROL);
- ctl &= ~(OHCI_CBSR_MASK | OHCI_LES | OHCI_HCFS_MASK | OHCI_IR);
- ctl |= OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE |
- OHCI_RATIO_1_4 | OHCI_HCFS_OPERATIONAL;
- /* And finally start it! */
- OWRITE4(sc, OHCI_CONTROL, ctl);
-
- /*
- * The controller is now OPERATIONAL. Set a some final
- * registers that should be set earlier, but that the
- * controller ignores when in the SUSPEND state.
- */
- fm = (OREAD4(sc, OHCI_FM_INTERVAL) & OHCI_FIT) ^ OHCI_FIT;
- fm |= OHCI_FSMPS(ival) | ival;
- OWRITE4(sc, OHCI_FM_INTERVAL, fm);
- per = OHCI_PERIODIC(ival); /* 90% periodic */
- OWRITE4(sc, OHCI_PERIODIC_START, per);
-
- /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */
- desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A);
- OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP);
- OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */
- usb2_pause_mtx(NULL,
- USB_MS_TO_TICKS(OHCI_ENABLE_POWER_DELAY));
- OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca);
-
- /*
- * The AMD756 requires a delay before re-reading the register,
- * otherwise it will occasionally report 0 ports.
- */
- sc->sc_noport = 0;
- for (i = 0; (i < 10) && (sc->sc_noport == 0); i++) {
- usb2_pause_mtx(NULL,
- USB_MS_TO_TICKS(OHCI_READ_DESC_DELAY));
- sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A));
- }
-
-#if USB_DEBUG
- if (ohcidebug > 5) {
- ohci_dumpregs(sc);
- }
-#endif
- return (USB_ERR_NORMAL_COMPLETION);
-}
-
-static struct ohci_ed *
-ohci_init_ed(struct usb2_page_cache *pc)
-{
- struct usb2_page_search buf_res;
- struct ohci_ed *ed;
-
- usb2_get_page(pc, 0, &buf_res);
-
- ed = buf_res.buffer;
-
- ed->ed_self = htole32(buf_res.physaddr);
- ed->ed_flags = htole32(OHCI_ED_SKIP);
- ed->page_cache = pc;
-
- return (ed);
-}
-
-usb2_error_t
-ohci_init(ohci_softc_t *sc)
-{
- struct usb2_page_search buf_res;
- uint16_t i;
- uint16_t bit;
- uint16_t x;
- uint16_t y;
-
- DPRINTF("start\n");
-
- sc->sc_eintrs = OHCI_NORMAL_INTRS;
-
- /*
- * Setup all ED's
- */
-
- sc->sc_ctrl_p_last =
- ohci_init_ed(&sc->sc_hw.ctrl_start_pc);
-
- sc->sc_bulk_p_last =
- ohci_init_ed(&sc->sc_hw.bulk_start_pc);
-
- sc->sc_isoc_p_last =
- ohci_init_ed(&sc->sc_hw.isoc_start_pc);
-
- for (i = 0; i != OHCI_NO_EDS; i++) {
- sc->sc_intr_p_last[i] =
- ohci_init_ed(sc->sc_hw.intr_start_pc + i);
- }
-
- /*
- * the QHs are arranged to give poll intervals that are
- * powers of 2 times 1ms
- */
- bit = OHCI_NO_EDS / 2;
- while (bit) {
- x = bit;
- while (x & bit) {
- ohci_ed_t *ed_x;
- ohci_ed_t *ed_y;
-
- y = (x ^ bit) | (bit / 2);
-
- /*
- * the next QH has half the poll interval
- */
- ed_x = sc->sc_intr_p_last[x];
- ed_y = sc->sc_intr_p_last[y];
-
- ed_x->next = NULL;
- ed_x->ed_next = ed_y->ed_self;
-
- x++;
- }
- bit >>= 1;
- }
-
- if (1) {
-
- ohci_ed_t *ed_int;
- ohci_ed_t *ed_isc;
-
- ed_int = sc->sc_intr_p_last[0];
- ed_isc = sc->sc_isoc_p_last;
-
- /* the last (1ms) QH */
- ed_int->next = ed_isc;
- ed_int->ed_next = ed_isc->ed_self;
- }
- usb2_get_page(&sc->sc_hw.hcca_pc, 0, &buf_res);
-
- sc->sc_hcca_p = buf_res.buffer;
-
- /*
- * Fill HCCA interrupt table. The bit reversal is to get
- * the tree set up properly to spread the interrupts.
- */
- for (i = 0; i != OHCI_NO_INTRS; i++) {
- sc->sc_hcca_p->hcca_interrupt_table[i] =
- sc->sc_intr_p_last[i | (OHCI_NO_EDS / 2)]->ed_self;
- }
- /* flush all cache into memory */
-
- usb2_bus_mem_flush_all(&sc->sc_bus, &ohci_iterate_hw_softc);
-
- /* set up the bus struct */
- sc->sc_bus.methods = &ohci_bus_methods;
-
- usb2_callout_init_mtx(&sc->sc_tmo_rhsc, &sc->sc_bus.bus_mtx, 0);
-
-#if USB_DEBUG
- if (ohcidebug > 15) {
- for (i = 0; i != OHCI_NO_EDS; i++) {
- printf("ed#%d ", i);
- ohci_dump_ed(sc->sc_intr_p_last[i]);
- }
- printf("iso ");
- ohci_dump_ed(sc->sc_isoc_p_last);
- }
-#endif
-
- sc->sc_bus.usbrev = USB_REV_1_0;
-
- if (ohci_controller_init(sc)) {
- return (USB_ERR_INVAL);
- } else {
- /* catch any lost interrupts */
- ohci_do_poll(&sc->sc_bus);
- return (USB_ERR_NORMAL_COMPLETION);
- }
-}
-
-/*
- * shut down the controller when the system is going down
- */
-void
-ohci_detach(struct ohci_softc *sc)
-{
- USB_BUS_LOCK(&sc->sc_bus);
-
- usb2_callout_stop(&sc->sc_tmo_rhsc);
-
- OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_ALL_INTRS);
- OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET);
-
- USB_BUS_UNLOCK(&sc->sc_bus);
-
- /* XXX let stray task complete */
- usb2_pause_mtx(NULL, hz / 20);
-
- usb2_callout_drain(&sc->sc_tmo_rhsc);
-}
-
-/* NOTE: suspend/resume is called from
- * interrupt context and cannot sleep!
- */
-void
-ohci_suspend(ohci_softc_t *sc)
-{
- uint32_t ctl;
-
- USB_BUS_LOCK(&sc->sc_bus);
-
-#if USB_DEBUG
- DPRINTF("\n");
- if (ohcidebug > 2) {
- ohci_dumpregs(sc);
- }
-#endif
-
- ctl = OREAD4(sc, OHCI_CONTROL) & ~OHCI_HCFS_MASK;
- if (sc->sc_control == 0) {
- /*
- * Preserve register values, in case that APM BIOS
- * does not recover them.
- */
- sc->sc_control = ctl;
- sc->sc_intre = OREAD4(sc, OHCI_INTERRUPT_ENABLE);
- }
- ctl |= OHCI_HCFS_SUSPEND;
- OWRITE4(sc, OHCI_CONTROL, ctl);
-
- usb2_pause_mtx(&sc->sc_bus.bus_mtx,
- USB_MS_TO_TICKS(USB_RESUME_WAIT));
-
- USB_BUS_UNLOCK(&sc->sc_bus);
-}
-
-void
-ohci_resume(ohci_softc_t *sc)
-{
- uint32_t ctl;
-
-#if USB_DEBUG
- DPRINTF("\n");
- if (ohcidebug > 2) {
- ohci_dumpregs(sc);
- }
-#endif
- /* some broken BIOSes never initialize the Controller chip */
- ohci_controller_init(sc);
-
- USB_BUS_LOCK(&sc->sc_bus);
- if (sc->sc_intre) {
- OWRITE4(sc, OHCI_INTERRUPT_ENABLE,
- sc->sc_intre & (OHCI_ALL_INTRS | OHCI_MIE));
- }
- if (sc->sc_control)
- ctl = sc->sc_control;
- else
- ctl = OREAD4(sc, OHCI_CONTROL);
- ctl |= OHCI_HCFS_RESUME;
- OWRITE4(sc, OHCI_CONTROL, ctl);
- usb2_pause_mtx(&sc->sc_bus.bus_mtx,
- USB_MS_TO_TICKS(USB_RESUME_DELAY));
- ctl = (ctl & ~OHCI_HCFS_MASK) | OHCI_HCFS_OPERATIONAL;
- OWRITE4(sc, OHCI_CONTROL, ctl);
- usb2_pause_mtx(&sc->sc_bus.bus_mtx,
- USB_MS_TO_TICKS(USB_RESUME_RECOVERY));
- sc->sc_control = sc->sc_intre = 0;
-
- USB_BUS_UNLOCK(&sc->sc_bus);
-
- /* catch any lost interrupts */
- ohci_do_poll(&sc->sc_bus);
-}
-
-#if USB_DEBUG
-static void
-ohci_dumpregs(ohci_softc_t *sc)
-{
- struct ohci_hcca *hcca;
-
- DPRINTF("ohci_dumpregs: rev=0x%08x control=0x%08x command=0x%08x\n",
- OREAD4(sc, OHCI_REVISION),
- OREAD4(sc, OHCI_CONTROL),
- OREAD4(sc, OHCI_COMMAND_STATUS));
- DPRINTF(" intrstat=0x%08x intre=0x%08x intrd=0x%08x\n",
- OREAD4(sc, OHCI_INTERRUPT_STATUS),
- OREAD4(sc, OHCI_INTERRUPT_ENABLE),
- OREAD4(sc, OHCI_INTERRUPT_DISABLE));
- DPRINTF(" hcca=0x%08x percur=0x%08x ctrlhd=0x%08x\n",
- OREAD4(sc, OHCI_HCCA),
- OREAD4(sc, OHCI_PERIOD_CURRENT_ED),
- OREAD4(sc, OHCI_CONTROL_HEAD_ED));
- DPRINTF(" ctrlcur=0x%08x bulkhd=0x%08x bulkcur=0x%08x\n",
- OREAD4(sc, OHCI_CONTROL_CURRENT_ED),
- OREAD4(sc, OHCI_BULK_HEAD_ED),
- OREAD4(sc, OHCI_BULK_CURRENT_ED));
- DPRINTF(" done=0x%08x fmival=0x%08x fmrem=0x%08x\n",
- OREAD4(sc, OHCI_DONE_HEAD),
- OREAD4(sc, OHCI_FM_INTERVAL),
- OREAD4(sc, OHCI_FM_REMAINING));
- DPRINTF(" fmnum=0x%08x perst=0x%08x lsthrs=0x%08x\n",
- OREAD4(sc, OHCI_FM_NUMBER),
- OREAD4(sc, OHCI_PERIODIC_START),
- OREAD4(sc, OHCI_LS_THRESHOLD));
- DPRINTF(" desca=0x%08x descb=0x%08x stat=0x%08x\n",
- OREAD4(sc, OHCI_RH_DESCRIPTOR_A),
- OREAD4(sc, OHCI_RH_DESCRIPTOR_B),
- OREAD4(sc, OHCI_RH_STATUS));
- DPRINTF(" port1=0x%08x port2=0x%08x\n",
- OREAD4(sc, OHCI_RH_PORT_STATUS(1)),
- OREAD4(sc, OHCI_RH_PORT_STATUS(2)));
-
- hcca = ohci_get_hcca(sc);
-
- DPRINTF(" HCCA: frame_number=0x%04x done_head=0x%08x\n",
- le32toh(hcca->hcca_frame_number),
- le32toh(hcca->hcca_done_head));
-}
-static void
-ohci_dump_tds(ohci_td_t *std)
-{
- for (; std; std = std->obj_next) {
- if (ohci_dump_td(std)) {
- break;
- }
- }
-}
-
-static uint8_t
-ohci_dump_td(ohci_td_t *std)
-{
- uint32_t td_flags;
- uint8_t temp;
-
- usb2_pc_cpu_invalidate(std->page_cache);
-
- td_flags = le32toh(std->td_flags);
- temp = (std->td_next == 0);
-
- printf("TD(%p) at 0x%08x: %s%s%s%s%s delay=%d ec=%d "
- "cc=%d\ncbp=0x%08x next=0x%08x be=0x%08x\n",
- std, le32toh(std->td_self),
- (td_flags & OHCI_TD_R) ? "-R" : "",
- (td_flags & OHCI_TD_OUT) ? "-OUT" : "",
- (td_flags & OHCI_TD_IN) ? "-IN" : "",
- ((td_flags & OHCI_TD_TOGGLE_MASK) == OHCI_TD_TOGGLE_1) ? "-TOG1" : "",
- ((td_flags & OHCI_TD_TOGGLE_MASK) == OHCI_TD_TOGGLE_0) ? "-TOG0" : "",
- OHCI_TD_GET_DI(td_flags),
- OHCI_TD_GET_EC(td_flags),
- OHCI_TD_GET_CC(td_flags),
- le32toh(std->td_cbp),
- le32toh(std->td_next),
- le32toh(std->td_be));
-
- return (temp);
-}
-
-static uint8_t
-ohci_dump_itd(ohci_itd_t *sitd)
-{
- uint32_t itd_flags;
- uint16_t i;
- uint8_t temp;
-
- usb2_pc_cpu_invalidate(sitd->page_cache);
-
- itd_flags = le32toh(sitd->itd_flags);
- temp = (sitd->itd_next == 0);
-
- printf("ITD(%p) at 0x%08x: sf=%d di=%d fc=%d cc=%d\n"
- "bp0=0x%08x next=0x%08x be=0x%08x\n",
- sitd, le32toh(sitd->itd_self),
- OHCI_ITD_GET_SF(itd_flags),
- OHCI_ITD_GET_DI(itd_flags),
- OHCI_ITD_GET_FC(itd_flags),
- OHCI_ITD_GET_CC(itd_flags),
- le32toh(sitd->itd_bp0),
- le32toh(sitd->itd_next),
- le32toh(sitd->itd_be));
- for (i = 0; i < OHCI_ITD_NOFFSET; i++) {
- printf("offs[%d]=0x%04x ", i,
- (uint32_t)le16toh(sitd->itd_offset[i]));
- }
- printf("\n");
-
- return (temp);
-}
-
-static void
-ohci_dump_itds(ohci_itd_t *sitd)
-{
- for (; sitd; sitd = sitd->obj_next) {
- if (ohci_dump_itd(sitd)) {
- break;
- }
- }
-}
-
-static void
-ohci_dump_ed(ohci_ed_t *sed)
-{
- uint32_t ed_flags;
- uint32_t ed_headp;
-
- usb2_pc_cpu_invalidate(sed->page_cache);
-
- ed_flags = le32toh(sed->ed_flags);
- ed_headp = le32toh(sed->ed_headp);
-
- printf("ED(%p) at 0x%08x: addr=%d endpt=%d maxp=%d flags=%s%s%s%s%s\n"
- "tailp=0x%08x headflags=%s%s headp=0x%08x nexted=0x%08x\n",
- sed, le32toh(sed->ed_self),
- OHCI_ED_GET_FA(ed_flags),
- OHCI_ED_GET_EN(ed_flags),
- OHCI_ED_GET_MAXP(ed_flags),
- (ed_flags & OHCI_ED_DIR_OUT) ? "-OUT" : "",
- (ed_flags & OHCI_ED_DIR_IN) ? "-IN" : "",
- (ed_flags & OHCI_ED_SPEED) ? "-LOWSPEED" : "",
- (ed_flags & OHCI_ED_SKIP) ? "-SKIP" : "",
- (ed_flags & OHCI_ED_FORMAT_ISO) ? "-ISO" : "",
- le32toh(sed->ed_tailp),
- (ed_headp & OHCI_HALTED) ? "-HALTED" : "",
- (ed_headp & OHCI_TOGGLECARRY) ? "-CARRY" : "",
- le32toh(sed->ed_headp),
- le32toh(sed->ed_next));
-}
-
-#endif
-
-static void
-ohci_transfer_intr_enqueue(struct usb2_xfer *xfer)
-{
- /* check for early completion */
- if (ohci_check_transfer(xfer)) {
- return;
- }
- /* put transfer on interrupt queue */
- usb2_transfer_enqueue(&xfer->xroot->bus->intr_q, xfer);
-
- /* start timeout, if any */
- if (xfer->timeout != 0) {
- usb2_transfer_timeout_ms(xfer, &ohci_timeout, xfer->timeout);
- }
-}
-
-#define OHCI_APPEND_QH(sed,last) (last) = _ohci_append_qh(sed,last)
-static ohci_ed_t *
-_ohci_append_qh(ohci_ed_t *sed, ohci_ed_t *last)
-{
- DPRINTFN(11, "%p to %p\n", sed, last);
-
- if (sed->prev != NULL) {
- /* should not happen */
- DPRINTFN(0, "ED already linked!\n");
- return (last);
- }
- /* (sc->sc_bus.bus_mtx) must be locked */
-
- sed->next = last->next;
- sed->ed_next = last->ed_next;
- sed->ed_tailp = 0;
-
- sed->prev = last;
-
- usb2_pc_cpu_flush(sed->page_cache);
-
- /*
- * the last->next->prev is never followed: sed->next->prev = sed;
- */
-
- last->next = sed;
- last->ed_next = sed->ed_self;
-
- usb2_pc_cpu_flush(last->page_cache);
-
- return (sed);
-}
-
-#define OHCI_REMOVE_QH(sed,last) (last) = _ohci_remove_qh(sed,last)
-static ohci_ed_t *
-_ohci_remove_qh(ohci_ed_t *sed, ohci_ed_t *last)
-{
- DPRINTFN(11, "%p from %p\n", sed, last);
-
- /* (sc->sc_bus.bus_mtx) must be locked */
-
- /* only remove if not removed from a queue */
- if (sed->prev) {
-
- sed->prev->next = sed->next;
- sed->prev->ed_next = sed->ed_next;
-
- usb2_pc_cpu_flush(sed->prev->page_cache);
-
- if (sed->next) {
- sed->next->prev = sed->prev;
- usb2_pc_cpu_flush(sed->next->page_cache);
- }
- last = ((last == sed) ? sed->prev : last);
-
- sed->prev = 0;
-
- usb2_pc_cpu_flush(sed->page_cache);
- }
- return (last);
-}
-
-static void
-ohci_isoc_done(struct usb2_xfer *xfer)
-{
- uint8_t nframes;
- uint32_t *plen = xfer->frlengths;
- volatile uint16_t *olen;
- uint16_t len = 0;
- ohci_itd_t *td = xfer->td_transfer_first;
-
- while (1) {
- if (td == NULL) {
- panic("%s:%d: out of TD's\n",
- __FUNCTION__, __LINE__);
- }
-#if USB_DEBUG
- if (ohcidebug > 5) {
- DPRINTF("isoc TD\n");
- ohci_dump_itd(td);
- }
-#endif
- usb2_pc_cpu_invalidate(td->page_cache);
-
- nframes = td->frames;
- olen = &td->itd_offset[0];
-
- if (nframes > 8) {
- nframes = 8;
- }
- while (nframes--) {
- len = le16toh(*olen);
-
- if ((len >> 12) == OHCI_CC_NOT_ACCESSED) {
- len = 0;
- } else {
- len &= ((1 << 12) - 1);
- }
-
- if (len > *plen) {
- len = 0;/* invalid length */
- }
- *plen = len;
- plen++;
- olen++;
- }
-
- if (((void *)td) == xfer->td_transfer_last) {
- break;
- }
- td = td->obj_next;
- }
-
- xfer->aframes = xfer->nframes;
- ohci_device_done(xfer, USB_ERR_NORMAL_COMPLETION);
-}
-
-#if USB_DEBUG
-static const char *const
- ohci_cc_strs[] =
-{
- "NO_ERROR",
- "CRC",
- "BIT_STUFFING",
- "DATA_TOGGLE_MISMATCH",
-
- "STALL",
- "DEVICE_NOT_RESPONDING",
- "PID_CHECK_FAILURE",
- "UNEXPECTED_PID",
-
- "DATA_OVERRUN",
- "DATA_UNDERRUN",
- "BUFFER_OVERRUN",
- "BUFFER_UNDERRUN",
-
- "reserved",
- "reserved",
- "NOT_ACCESSED",
- "NOT_ACCESSED"
-};
-
-#endif
-
-static usb2_error_t
-ohci_non_isoc_done_sub(struct usb2_xfer *xfer)
-{
- ohci_td_t *td;
- ohci_td_t *td_alt_next;
- uint32_t temp;
- uint32_t phy_start;
- uint32_t phy_end;
- uint32_t td_flags;
- uint16_t cc;
-
- td = xfer->td_transfer_cache;
- td_alt_next = td->alt_next;
- td_flags = 0;
-
- if (xfer->aframes != xfer->nframes) {
- xfer->frlengths[xfer->aframes] = 0;
- }
- while (1) {
-
- usb2_pc_cpu_invalidate(td->page_cache);
- phy_start = le32toh(td->td_cbp);
- td_flags = le32toh(td->td_flags);
- cc = OHCI_TD_GET_CC(td_flags);
-
- if (phy_start) {
- /*
- * short transfer - compute the number of remaining
- * bytes in the hardware buffer:
- */
- phy_end = le32toh(td->td_be);
- temp = (OHCI_PAGE(phy_start ^ phy_end) ?
- (OHCI_PAGE_SIZE + 1) : 0x0001);
- temp += OHCI_PAGE_OFFSET(phy_end);
- temp -= OHCI_PAGE_OFFSET(phy_start);
-
- if (temp > td->len) {
- /* guard against corruption */
- cc = OHCI_CC_STALL;
- } else if (xfer->aframes != xfer->nframes) {
- /*
- * Sum up total transfer length
- * in "frlengths[]":
- */
- xfer->frlengths[xfer->aframes] += td->len - temp;
- }
- } else {
- if (xfer->aframes != xfer->nframes) {
- /* transfer was complete */
- xfer->frlengths[xfer->aframes] += td->len;
- }
- }
- /* Check for last transfer */
- if (((void *)td) == xfer->td_transfer_last) {
- td = NULL;
- break;
- }
- /* Check transfer status */
- if (cc) {
- /* the transfer is finished */
- td = NULL;
- break;
- }
- /* Check for short transfer */
- if (phy_start) {
- if (xfer->flags_int.short_frames_ok) {
- /* follow alt next */
- td = td->alt_next;
- } else {
- /* the transfer is finished */
- td = NULL;
- }
- break;
- }
- td = td->obj_next;
-
- if (td->alt_next != td_alt_next) {
- /* this USB frame is complete */
- break;
- }
- }
-
- /* update transfer cache */
-
- xfer->td_transfer_cache = td;
-
- DPRINTFN(16, "error cc=%d (%s)\n",
- cc, ohci_cc_strs[cc]);
-
- return ((cc == 0) ? USB_ERR_NORMAL_COMPLETION :
- (cc == OHCI_CC_STALL) ? USB_ERR_STALLED : USB_ERR_IOERROR);
-}
-
-static void
-ohci_non_isoc_done(struct usb2_xfer *xfer)
-{
- usb2_error_t err = 0;
-
- DPRINTFN(13, "xfer=%p pipe=%p transfer done\n",
- xfer, xfer->pipe);
-
-#if USB_DEBUG
- if (ohcidebug > 10) {
- ohci_dump_tds(xfer->td_transfer_first);
- }
-#endif
-
- /* reset scanner */
-
- xfer->td_transfer_cache = xfer->td_transfer_first;
-
- if (xfer->flags_int.control_xfr) {
-
- if (xfer->flags_int.control_hdr) {
-
- err = ohci_non_isoc_done_sub(xfer);
- }
- xfer->aframes = 1;
-
- if (xfer->td_transfer_cache == NULL) {
- goto done;
- }
- }
- while (xfer->aframes != xfer->nframes) {
-
- err = ohci_non_isoc_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 = ohci_non_isoc_done_sub(xfer);
- }
-done:
- ohci_device_done(xfer, err);
-}
-
-/*------------------------------------------------------------------------*
- * ohci_check_transfer_sub
- *------------------------------------------------------------------------*/
-static void
-ohci_check_transfer_sub(struct usb2_xfer *xfer)
-{
- ohci_td_t *td;
- ohci_ed_t *ed;
- uint32_t phy_start;
- uint32_t td_flags;
- uint32_t td_next;
- uint16_t cc;
-
- td = xfer->td_transfer_cache;
-
- while (1) {
-
- usb2_pc_cpu_invalidate(td->page_cache);
- phy_start = le32toh(td->td_cbp);
- td_flags = le32toh(td->td_flags);
- td_next = le32toh(td->td_next);
-
- /* Check for last transfer */
- if (((void *)td) == xfer->td_transfer_last) {
- /* the transfer is finished */
- td = NULL;
- break;
- }
- /* Check transfer status */
- cc = OHCI_TD_GET_CC(td_flags);
- if (cc) {
- /* the transfer is finished */
- td = NULL;
- break;
- }
- /*
- * Check if we reached the last packet
- * or if there is a short packet:
- */
-
- if (((td_next & (~0xF)) == OHCI_TD_NEXT_END) || phy_start) {
- /* follow alt next */
- td = td->alt_next;
- break;
- }
- td = td->obj_next;
- }
-
- /* update transfer cache */
-
- xfer->td_transfer_cache = td;
-
- if (td) {
-
- ed = xfer->qh_start[xfer->flags_int.curr_dma_set];
-
- ed->ed_headp = td->td_self;
- usb2_pc_cpu_flush(ed->page_cache);
-
- DPRINTFN(13, "xfer=%p following alt next\n", xfer);
- }
-}
-
-/*------------------------------------------------------------------------*
- * ohci_check_transfer
- *
- * Return values:
- * 0: USB transfer is not finished
- * Else: USB transfer is finished
- *------------------------------------------------------------------------*/
-static uint8_t
-ohci_check_transfer(struct usb2_xfer *xfer)
-{
- ohci_ed_t *ed;
- uint32_t ed_flags;
- uint32_t ed_headp;
- uint32_t ed_tailp;
-
- DPRINTFN(13, "xfer=%p checking transfer\n", xfer);
-
- ed = xfer->qh_start[xfer->flags_int.curr_dma_set];
-
- usb2_pc_cpu_invalidate(ed->page_cache);
- ed_flags = le32toh(ed->ed_flags);
- ed_headp = le32toh(ed->ed_headp);
- ed_tailp = le32toh(ed->ed_tailp);
-
- if ((ed_flags & OHCI_ED_SKIP) ||
- (ed_headp & OHCI_HALTED) ||
- (((ed_headp ^ ed_tailp) & (~0xF)) == 0)) {
- if (xfer->pipe->methods == &ohci_device_isoc_methods) {
- /* isochronous transfer */
- ohci_isoc_done(xfer);
- } else {
- if (xfer->flags_int.short_frames_ok) {
- ohci_check_transfer_sub(xfer);
- if (xfer->td_transfer_cache) {
- /* not finished yet */
- return (0);
- }
- }
- /* store data-toggle */
- if (ed_headp & OHCI_TOGGLECARRY) {
- xfer->pipe->toggle_next = 1;
- } else {
- xfer->pipe->toggle_next = 0;
- }
-
- /* non-isochronous transfer */
- ohci_non_isoc_done(xfer);
- }
- return (1);
- }
- DPRINTFN(13, "xfer=%p is still active\n", xfer);
- return (0);
-}
-
-static void
-ohci_rhsc_enable(ohci_softc_t *sc)
-{
- DPRINTFN(5, "\n");
-
- USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
-
- sc->sc_eintrs |= OHCI_RHSC;
- OWRITE4(sc, OHCI_INTERRUPT_ENABLE, OHCI_RHSC);
-
- /* acknowledge any RHSC interrupt */
- OWRITE4(sc, OHCI_INTERRUPT_STATUS, OHCI_RHSC);
-
- usb2_sw_transfer(&sc->sc_root_intr,
- &ohci_root_intr_done);
-}
-
-static void
-ohci_interrupt_poll(ohci_softc_t *sc)
-{
- struct usb2_xfer *xfer;
-
-repeat:
- TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
- /*
- * check if transfer is transferred
- */
- if (ohci_check_transfer(xfer)) {
- /* queue has been modified */
- goto repeat;
- }
- }
-}
-
-/*------------------------------------------------------------------------*
- * ohci_interrupt - OHCI interrupt handler
- *
- * NOTE: Do not access "sc->sc_bus.bdev" inside the interrupt handler,
- * hence the interrupt handler will be setup before "sc->sc_bus.bdev"
- * is present !
- *------------------------------------------------------------------------*/
-void
-ohci_interrupt(ohci_softc_t *sc)
-{
- struct ohci_hcca *hcca;
- uint32_t status;
- uint32_t done;
-
- USB_BUS_LOCK(&sc->sc_bus);
-
- hcca = ohci_get_hcca(sc);
-
- DPRINTFN(16, "real interrupt\n");
-
-#if USB_DEBUG
- if (ohcidebug > 15) {
- ohci_dumpregs(sc);
- }
-#endif
-
- done = le32toh(hcca->hcca_done_head);
-
- /*
- * The LSb of done is used to inform the HC Driver that an interrupt
- * condition exists for both the Done list and for another event
- * recorded in HcInterruptStatus. On an interrupt from the HC, the
- * HC Driver checks the HccaDoneHead Value. If this value is 0, then
- * the interrupt was caused by other than the HccaDoneHead update
- * and the HcInterruptStatus register needs to be accessed to
- * determine that exact interrupt cause. If HccaDoneHead is nonzero,
- * then a Done list update interrupt is indicated and if the LSb of
- * done is nonzero, then an additional interrupt event is indicated
- * and HcInterruptStatus should be checked to determine its cause.
- */
- if (done != 0) {
- status = 0;
-
- if (done & ~OHCI_DONE_INTRS) {
- status |= OHCI_WDH;
- }
- if (done & OHCI_DONE_INTRS) {
- status |= OREAD4(sc, OHCI_INTERRUPT_STATUS);
- }
- hcca->hcca_done_head = 0;
-
- usb2_pc_cpu_flush(&sc->sc_hw.hcca_pc);
- } else {
- status = OREAD4(sc, OHCI_INTERRUPT_STATUS) & ~OHCI_WDH;
- }
-
- status &= ~OHCI_MIE;
- if (status == 0) {
- /*
- * nothing to be done (PCI shared
- * interrupt)
- */
- goto done;
- }
- OWRITE4(sc, OHCI_INTERRUPT_STATUS, status); /* Acknowledge */
-
- status &= sc->sc_eintrs;
- if (status == 0) {
- goto done;
- }
- if (status & (OHCI_SO | OHCI_RD | OHCI_UE | OHCI_RHSC)) {
-#if 0
- if (status & OHCI_SO) {
- /* XXX do what */
- }
-#endif
- if (status & OHCI_RD) {
- printf("%s: resume detect\n", __FUNCTION__);
- /* XXX process resume detect */
- }
- if (status & OHCI_UE) {
- printf("%s: unrecoverable error, "
- "controller halted\n", __FUNCTION__);
- OWRITE4(sc, OHCI_CONTROL, OHCI_HCFS_RESET);
- /* XXX what else */
- }
- if (status & OHCI_RHSC) {
- /*
- * Disable RHSC interrupt for now, because it will be
- * on until the port has been reset.
- */
- sc->sc_eintrs &= ~OHCI_RHSC;
- OWRITE4(sc, OHCI_INTERRUPT_DISABLE, OHCI_RHSC);
-
- usb2_sw_transfer(&sc->sc_root_intr,
- &ohci_root_intr_done);
-
- /* do not allow RHSC interrupts > 1 per second */
- usb2_callout_reset(&sc->sc_tmo_rhsc, hz,
- (void *)&ohci_rhsc_enable, sc);
- }
- }
- status &= ~(OHCI_RHSC | OHCI_WDH | OHCI_SO);
- if (status != 0) {
- /* Block unprocessed interrupts. XXX */
- OWRITE4(sc, OHCI_INTERRUPT_DISABLE, status);
- sc->sc_eintrs &= ~status;
- printf("%s: blocking intrs 0x%x\n",
- __FUNCTION__, status);
- }
- /* poll all the USB transfers */
- ohci_interrupt_poll(sc);
-
-done:
- USB_BUS_UNLOCK(&sc->sc_bus);
-}
-
-/*
- * called when a request does not complete
- */
-static void
-ohci_timeout(void *arg)
-{
- struct usb2_xfer *xfer = arg;
-
- DPRINTF("xfer=%p\n", xfer);
-
- USB_BUS_LOCK_ASSERT(xfer->xroot->bus, MA_OWNED);
-
- /* transfer is transferred */
- ohci_device_done(xfer, USB_ERR_TIMEOUT);
-}
-
-static void
-ohci_do_poll(struct usb2_bus *bus)
-{
- struct ohci_softc *sc = OHCI_BUS2SC(bus);
-
- USB_BUS_LOCK(&sc->sc_bus);
- ohci_interrupt_poll(sc);
- ohci_root_ctrl_poll(sc);
- USB_BUS_UNLOCK(&sc->sc_bus);
-}
-
-static void
-ohci_setup_standard_chain_sub(struct ohci_std_temp *temp)
-{
- struct usb2_page_search buf_res;
- ohci_td_t *td;
- ohci_td_t *td_next;
- ohci_td_t *td_alt_next;
- uint32_t buf_offset;
- uint32_t average;
- uint32_t len_old;
- uint8_t shortpkt_old;
- uint8_t precompute;
-
- td_alt_next = NULL;
- buf_offset = 0;
- shortpkt_old = temp->shortpkt;
- len_old = temp->len;
- precompute = 1;
-
- /* software is used to detect short incoming transfers */
-
- if ((temp->td_flags & htole32(OHCI_TD_DP_MASK)) == htole32(OHCI_TD_IN)) {
- temp->td_flags |= htole32(OHCI_TD_R);
- } else {
- temp->td_flags &= ~htole32(OHCI_TD_R);
- }
-
-restart:
-
- td = temp->td;
- td_next = temp->td_next;
-
- while (1) {
-
- if (temp->len == 0) {
-
- if (temp->shortpkt) {
- break;
- }
- /* send a Zero Length Packet, ZLP, last */
-
- temp->shortpkt = 1;
- average = 0;
-
- } else {
-
- average = temp->average;
-
- if (temp->len < average) {
- if (temp->len % temp->max_frame_size) {
- temp->shortpkt = 1;
- }
- average = temp->len;
- }
- }
-
- if (td_next == NULL) {
- panic("%s: out of OHCI transfer descriptors!", __FUNCTION__);
- }
- /* get next TD */
-
- td = td_next;
- td_next = td->obj_next;
-
- /* check if we are pre-computing */
-
- if (precompute) {
-
- /* update remaining length */
-
- temp->len -= average;
-
- continue;
- }
- /* fill out current TD */
- td->td_flags = temp->td_flags;
-
- /* the next TD uses TOGGLE_CARRY */
- temp->td_flags &= ~htole32(OHCI_TD_TOGGLE_MASK);
-
- if (average == 0) {
-
- td->td_cbp = 0;
- td->td_be = ~0;
- td->len = 0;
-
- } else {
-
- usb2_get_page(temp->pc, buf_offset, &buf_res);
- td->td_cbp = htole32(buf_res.physaddr);
- buf_offset += (average - 1);
-
- usb2_get_page(temp->pc, buf_offset, &buf_res);
- td->td_be = htole32(buf_res.physaddr);
- buf_offset++;
-
- td->len = average;
-
- /* update remaining length */
-
- temp->len -= average;
- }
-
- if ((td_next == td_alt_next) && temp->setup_alt_next) {
- /* we need to receive these frames one by one ! */
- td->td_flags &= htole32(~OHCI_TD_INTR_MASK);
- td->td_flags |= htole32(OHCI_TD_SET_DI(1));
- td->td_next = htole32(OHCI_TD_NEXT_END);
- } else {
- if (td_next) {
- /* link the current TD with the next one */
- td->td_next = td_next->td_self;
- }
- }
-
- td->alt_next = td_alt_next;
-
- usb2_pc_cpu_flush(td->page_cache);
- }
-
- if (precompute) {
- precompute = 0;
-
- /* setup alt next pointer, if any */
- if (temp->short_frames_ok) {
- if (temp->setup_alt_next) {
- td_alt_next = td_next;
- }
- } else {
- /* we use this field internally */
- td_alt_next = td_next;
- }
-
- /* restore */
- temp->shortpkt = shortpkt_old;
- temp->len = len_old;
- goto restart;
- }
- temp->td = td;
- temp->td_next = td_next;
-}
-
-static void
-ohci_setup_standard_chain(struct usb2_xfer *xfer, ohci_ed_t **ed_last)
-{
- struct ohci_std_temp temp;
- struct usb2_pipe_methods *methods;
- ohci_ed_t *ed;
- ohci_td_t *td;
- uint32_t ed_flags;
- uint32_t x;
-
- DPRINTFN(9, "addr=%d endpt=%d sumlen=%d speed=%d\n",
- xfer->address, UE_GET_ADDR(xfer->endpoint),
- xfer->sumlen, usb2_get_speed(xfer->xroot->udev));
-
- temp.average = xfer->max_usb2_frame_size;
- temp.max_frame_size = xfer->max_frame_size;
-
- /* toggle the DMA set we are using */
- xfer->flags_int.curr_dma_set ^= 1;
-
- /* get next DMA set */
- td = xfer->td_start[xfer->flags_int.curr_dma_set];
-
- xfer->td_transfer_first = td;
- xfer->td_transfer_cache = td;
-
- temp.td = NULL;
- temp.td_next = td;
- temp.setup_alt_next = xfer->flags_int.short_frames_ok;
- temp.short_frames_ok = xfer->flags_int.short_frames_ok;
-
- methods = xfer->pipe->methods;
-
- /* check if we should prepend a setup message */
-
- if (xfer->flags_int.control_xfr) {
- if (xfer->flags_int.control_hdr) {
-
- temp.td_flags = htole32(OHCI_TD_SETUP | OHCI_TD_NOCC |
- OHCI_TD_TOGGLE_0 | OHCI_TD_NOINTR);
-
- temp.len = xfer->frlengths[0];
- temp.pc = xfer->frbuffers + 0;
- temp.shortpkt = temp.len ? 1 : 0;
-
- ohci_setup_standard_chain_sub(&temp);
-
- /*
- * XXX assume that the setup message is
- * contained within one USB packet:
- */
- xfer->pipe->toggle_next = 1;
- }
- x = 1;
- } else {
- x = 0;
- }
- temp.td_flags = htole32(OHCI_TD_NOCC | OHCI_TD_NOINTR);
-
- /* set data toggle */
-
- if (xfer->pipe->toggle_next) {
- temp.td_flags |= htole32(OHCI_TD_TOGGLE_1);
- } else {
- temp.td_flags |= htole32(OHCI_TD_TOGGLE_0);
- }
-
- /* set endpoint direction */
-
- if (UE_GET_DIR(xfer->endpoint) == UE_DIR_IN) {
- temp.td_flags |= htole32(OHCI_TD_IN);
- } else {
- temp.td_flags |= htole32(OHCI_TD_OUT);
- }
-
- while (x != xfer->nframes) {
-
- /* DATA0 / DATA1 message */
-
- temp.len = xfer->frlengths[x];
- temp.pc = xfer->frbuffers + x;
-
- x++;
-
- if (x == xfer->nframes) {
- temp.setup_alt_next = 0;
- }
- if (temp.len == 0) {
-
- /* make sure that we send an USB packet */
-
- temp.shortpkt = 0;
-
- } else {
-
- /* regular data transfer */
-
- temp.shortpkt = (xfer->flags.force_short_xfer) ? 0 : 1;
- }
-
- ohci_setup_standard_chain_sub(&temp);
- }
-
- /* check if we should append a status stage */
-
- if (xfer->flags_int.control_xfr &&
- !xfer->flags_int.control_act) {
-
- /*
- * Send a DATA1 message and invert the current endpoint
- * direction.
- */
-
- /* set endpoint direction and data toggle */
-
- if (UE_GET_DIR(xfer->endpoint) == UE_DIR_IN) {
- temp.td_flags = htole32(OHCI_TD_OUT |
- OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1));
- } else {
- temp.td_flags = htole32(OHCI_TD_IN |
- OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1));
- }
-
- temp.len = 0;
- temp.pc = NULL;
- temp.shortpkt = 0;
-
- ohci_setup_standard_chain_sub(&temp);
- }
- td = temp.td;
-
- td->td_next = htole32(OHCI_TD_NEXT_END);
- td->td_flags &= ~htole32(OHCI_TD_INTR_MASK);
- td->td_flags |= htole32(OHCI_TD_SET_DI(1));
-
- usb2_pc_cpu_flush(td->page_cache);
-
- /* must have at least one frame! */
-
- xfer->td_transfer_last = td;
-
-#if USB_DEBUG
- if (ohcidebug > 8) {
- DPRINTF("nexttog=%d; data before transfer:\n",
- xfer->pipe->toggle_next);
- ohci_dump_tds(xfer->td_transfer_first);
- }
-#endif
-
- ed = xfer->qh_start[xfer->flags_int.curr_dma_set];
-
- ed_flags = (OHCI_ED_SET_FA(xfer->address) |
- OHCI_ED_SET_EN(UE_GET_ADDR(xfer->endpoint)) |
- OHCI_ED_SET_MAXP(xfer->max_frame_size));
-
- ed_flags |= (OHCI_ED_FORMAT_GEN | OHCI_ED_DIR_TD);
-
- if (xfer->xroot->udev->speed == USB_SPEED_LOW) {
- ed_flags |= OHCI_ED_SPEED;
- }
- ed->ed_flags = htole32(ed_flags);
-
- td = xfer->td_transfer_first;
-
- ed->ed_headp = td->td_self;
-
- if (xfer->xroot->udev->pwr_save.suspended == 0) {
- /* the append function will flush the endpoint descriptor */
- OHCI_APPEND_QH(ed, *ed_last);
-
- if (methods == &ohci_device_bulk_methods) {
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF);
- }
- if (methods == &ohci_device_ctrl_methods) {
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF);
- }
- } else {
- usb2_pc_cpu_flush(ed->page_cache);
- }
-}
-
-static void
-ohci_root_intr_done(struct usb2_xfer *xfer,
- struct usb2_sw_transfer *std)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
- uint32_t hstatus;
- uint16_t i;
- uint16_t m;
-
- USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
-
- if (std->state != USB_SW_TR_PRE_DATA) {
- if (std->state == USB_SW_TR_PRE_CALLBACK) {
- /* transfer transferred */
- ohci_device_done(xfer, std->err);
- }
- goto done;
- }
- /* setup buffer */
- std->ptr = sc->sc_hub_idata;
- std->len = sizeof(sc->sc_hub_idata);
-
- /* clear any old interrupt data */
- bzero(sc->sc_hub_idata, sizeof(sc->sc_hub_idata));
-
- hstatus = OREAD4(sc, OHCI_RH_STATUS);
- DPRINTF("sc=%p xfer=%p hstatus=0x%08x\n",
- sc, xfer, hstatus);
-
- /* set bits */
- m = (sc->sc_noport + 1);
- if (m > (8 * sizeof(sc->sc_hub_idata))) {
- m = (8 * sizeof(sc->sc_hub_idata));
- }
- for (i = 1; i < m; i++) {
- /* pick out CHANGE bits from the status register */
- if (OREAD4(sc, OHCI_RH_PORT_STATUS(i)) >> 16) {
- sc->sc_hub_idata[i / 8] |= 1 << (i % 8);
- DPRINTF("port %d changed\n", i);
- }
- }
-done:
- return;
-}
-
-/* NOTE: "done" can be run two times in a row,
- * from close and from interrupt
- */
-static void
-ohci_device_done(struct usb2_xfer *xfer, usb2_error_t error)
-{
- struct usb2_pipe_methods *methods = xfer->pipe->methods;
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
- ohci_ed_t *ed;
-
- USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
-
-
- DPRINTFN(2, "xfer=%p, pipe=%p, error=%d\n",
- xfer, xfer->pipe, error);
-
- ed = xfer->qh_start[xfer->flags_int.curr_dma_set];
- if (ed) {
- usb2_pc_cpu_invalidate(ed->page_cache);
- }
- if (methods == &ohci_device_bulk_methods) {
- OHCI_REMOVE_QH(ed, sc->sc_bulk_p_last);
- }
- if (methods == &ohci_device_ctrl_methods) {
- OHCI_REMOVE_QH(ed, sc->sc_ctrl_p_last);
- }
- if (methods == &ohci_device_intr_methods) {
- OHCI_REMOVE_QH(ed, sc->sc_intr_p_last[xfer->qh_pos]);
- }
- if (methods == &ohci_device_isoc_methods) {
- OHCI_REMOVE_QH(ed, sc->sc_isoc_p_last);
- }
- xfer->td_transfer_first = NULL;
- xfer->td_transfer_last = NULL;
-
- /* dequeue transfer and start next transfer */
- usb2_transfer_done(xfer, error);
-}
-
-/*------------------------------------------------------------------------*
- * ohci bulk support
- *------------------------------------------------------------------------*/
-static void
-ohci_device_bulk_open(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_device_bulk_close(struct usb2_xfer *xfer)
-{
- ohci_device_done(xfer, USB_ERR_CANCELLED);
-}
-
-static void
-ohci_device_bulk_enter(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_device_bulk_start(struct usb2_xfer *xfer)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- /* setup TD's and QH */
- ohci_setup_standard_chain(xfer, &sc->sc_bulk_p_last);
-
- /* put transfer on interrupt queue */
- ohci_transfer_intr_enqueue(xfer);
-}
-
-struct usb2_pipe_methods ohci_device_bulk_methods =
-{
- .open = ohci_device_bulk_open,
- .close = ohci_device_bulk_close,
- .enter = ohci_device_bulk_enter,
- .start = ohci_device_bulk_start,
- .enter_is_cancelable = 1,
- .start_is_cancelable = 1,
-};
-
-/*------------------------------------------------------------------------*
- * ohci control support
- *------------------------------------------------------------------------*/
-static void
-ohci_device_ctrl_open(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_device_ctrl_close(struct usb2_xfer *xfer)
-{
- ohci_device_done(xfer, USB_ERR_CANCELLED);
-}
-
-static void
-ohci_device_ctrl_enter(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_device_ctrl_start(struct usb2_xfer *xfer)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- /* setup TD's and QH */
- ohci_setup_standard_chain(xfer, &sc->sc_ctrl_p_last);
-
- /* put transfer on interrupt queue */
- ohci_transfer_intr_enqueue(xfer);
-}
-
-struct usb2_pipe_methods ohci_device_ctrl_methods =
-{
- .open = ohci_device_ctrl_open,
- .close = ohci_device_ctrl_close,
- .enter = ohci_device_ctrl_enter,
- .start = ohci_device_ctrl_start,
- .enter_is_cancelable = 1,
- .start_is_cancelable = 1,
-};
-
-/*------------------------------------------------------------------------*
- * ohci interrupt support
- *------------------------------------------------------------------------*/
-static void
-ohci_device_intr_open(struct usb2_xfer *xfer)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
- uint16_t best;
- uint16_t bit;
- uint16_t x;
-
- best = 0;
- bit = OHCI_NO_EDS / 2;
- while (bit) {
- if (xfer->interval >= bit) {
- x = bit;
- best = bit;
- while (x & bit) {
- if (sc->sc_intr_stat[x] <
- sc->sc_intr_stat[best]) {
- best = x;
- }
- x++;
- }
- break;
- }
- bit >>= 1;
- }
-
- sc->sc_intr_stat[best]++;
- xfer->qh_pos = best;
-
- DPRINTFN(3, "best=%d interval=%d\n",
- best, xfer->interval);
-}
-
-static void
-ohci_device_intr_close(struct usb2_xfer *xfer)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- sc->sc_intr_stat[xfer->qh_pos]--;
-
- ohci_device_done(xfer, USB_ERR_CANCELLED);
-}
-
-static void
-ohci_device_intr_enter(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_device_intr_start(struct usb2_xfer *xfer)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- /* setup TD's and QH */
- ohci_setup_standard_chain(xfer, &sc->sc_intr_p_last[xfer->qh_pos]);
-
- /* put transfer on interrupt queue */
- ohci_transfer_intr_enqueue(xfer);
-}
-
-struct usb2_pipe_methods ohci_device_intr_methods =
-{
- .open = ohci_device_intr_open,
- .close = ohci_device_intr_close,
- .enter = ohci_device_intr_enter,
- .start = ohci_device_intr_start,
- .enter_is_cancelable = 1,
- .start_is_cancelable = 1,
-};
-
-/*------------------------------------------------------------------------*
- * ohci isochronous support
- *------------------------------------------------------------------------*/
-static void
-ohci_device_isoc_open(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_device_isoc_close(struct usb2_xfer *xfer)
-{
- /**/
- ohci_device_done(xfer, USB_ERR_CANCELLED);
-}
-
-static void
-ohci_device_isoc_enter(struct usb2_xfer *xfer)
-{
- struct usb2_page_search buf_res;
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
- struct ohci_hcca *hcca;
- uint32_t buf_offset;
- uint32_t nframes;
- uint32_t ed_flags;
- uint32_t *plen;
- uint16_t itd_offset[OHCI_ITD_NOFFSET];
- uint16_t length;
- uint8_t ncur;
- ohci_itd_t *td;
- ohci_itd_t *td_last = NULL;
- ohci_ed_t *ed;
-
- hcca = ohci_get_hcca(sc);
-
- nframes = le32toh(hcca->hcca_frame_number);
-
- DPRINTFN(6, "xfer=%p isoc_next=%u nframes=%u hcca_fn=%u\n",
- xfer, xfer->pipe->isoc_next, xfer->nframes, nframes);
-
- if ((xfer->pipe->is_synced == 0) ||
- (((nframes - xfer->pipe->isoc_next) & 0xFFFF) < xfer->nframes) ||
- (((xfer->pipe->isoc_next - nframes) & 0xFFFF) >= 128)) {
- /*
- * If there is data underflow or the pipe queue is empty we
- * schedule the transfer a few frames ahead of the current
- * frame position. Else two isochronous transfers might
- * overlap.
- */
- xfer->pipe->isoc_next = (nframes + 3) & 0xFFFF;
- xfer->pipe->is_synced = 1;
- DPRINTFN(3, "start next=%d\n", xfer->pipe->isoc_next);
- }
- /*
- * compute how many milliseconds the insertion is ahead of the
- * current frame position:
- */
- buf_offset = ((xfer->pipe->isoc_next - nframes) & 0xFFFF);
-
- /*
- * pre-compute when the isochronous transfer will be finished:
- */
- xfer->isoc_time_complete =
- (usb2_isoc_time_expand(&sc->sc_bus, nframes) + buf_offset +
- xfer->nframes);
-
- /* get the real number of frames */
-
- nframes = xfer->nframes;
-
- buf_offset = 0;
-
- plen = xfer->frlengths;
-
- /* toggle the DMA set we are using */
- xfer->flags_int.curr_dma_set ^= 1;
-
- /* get next DMA set */
- td = xfer->td_start[xfer->flags_int.curr_dma_set];
-
- xfer->td_transfer_first = td;
-
- ncur = 0;
- length = 0;
-
- while (nframes--) {
- if (td == NULL) {
- panic("%s:%d: out of TD's\n",
- __FUNCTION__, __LINE__);
- }
- itd_offset[ncur] = length;
- buf_offset += *plen;
- length += *plen;
- plen++;
- ncur++;
-
- if ( /* check if the ITD is full */
- (ncur == OHCI_ITD_NOFFSET) ||
- /* check if we have put more than 4K into the ITD */
- (length & 0xF000) ||
- /* check if it is the last frame */
- (nframes == 0)) {
-
- /* fill current ITD */
- td->itd_flags = htole32(
- OHCI_ITD_NOCC |
- OHCI_ITD_SET_SF(xfer->pipe->isoc_next) |
- OHCI_ITD_NOINTR |
- OHCI_ITD_SET_FC(ncur));
-
- td->frames = ncur;
- xfer->pipe->isoc_next += ncur;
-
- if (length == 0) {
- /* all zero */
- td->itd_bp0 = 0;
- td->itd_be = ~0;
-
- while (ncur--) {
- td->itd_offset[ncur] =
- htole16(OHCI_ITD_MK_OFFS(0));
- }
- } else {
- usb2_get_page(xfer->frbuffers, buf_offset - length, &buf_res);
- length = OHCI_PAGE_MASK(buf_res.physaddr);
- buf_res.physaddr =
- OHCI_PAGE(buf_res.physaddr);
- td->itd_bp0 = htole32(buf_res.physaddr);
- usb2_get_page(xfer->frbuffers, buf_offset - 1, &buf_res);
- td->itd_be = htole32(buf_res.physaddr);
-
- while (ncur--) {
- itd_offset[ncur] += length;
- itd_offset[ncur] =
- OHCI_ITD_MK_OFFS(itd_offset[ncur]);
- td->itd_offset[ncur] =
- htole16(itd_offset[ncur]);
- }
- }
- ncur = 0;
- length = 0;
- td_last = td;
- td = td->obj_next;
-
- if (td) {
- /* link the last TD with the next one */
- td_last->itd_next = td->itd_self;
- }
- usb2_pc_cpu_flush(td_last->page_cache);
- }
- }
-
- /* update the last TD */
- td_last->itd_flags &= ~htole32(OHCI_ITD_NOINTR);
- td_last->itd_flags |= htole32(OHCI_ITD_SET_DI(0));
- td_last->itd_next = 0;
-
- usb2_pc_cpu_flush(td_last->page_cache);
-
- xfer->td_transfer_last = td_last;
-
-#if USB_DEBUG
- if (ohcidebug > 8) {
- DPRINTF("data before transfer:\n");
- ohci_dump_itds(xfer->td_transfer_first);
- }
-#endif
- ed = xfer->qh_start[xfer->flags_int.curr_dma_set];
-
- if (UE_GET_DIR(xfer->endpoint) == UE_DIR_IN)
- ed_flags = (OHCI_ED_DIR_IN | OHCI_ED_FORMAT_ISO);
- else
- ed_flags = (OHCI_ED_DIR_OUT | OHCI_ED_FORMAT_ISO);
-
- ed_flags |= (OHCI_ED_SET_FA(xfer->address) |
- OHCI_ED_SET_EN(UE_GET_ADDR(xfer->endpoint)) |
- OHCI_ED_SET_MAXP(xfer->max_frame_size));
-
- if (xfer->xroot->udev->speed == USB_SPEED_LOW) {
- ed_flags |= OHCI_ED_SPEED;
- }
- ed->ed_flags = htole32(ed_flags);
-
- td = xfer->td_transfer_first;
-
- ed->ed_headp = td->itd_self;
-
- /* isochronous transfers are not affected by suspend / resume */
- /* the append function will flush the endpoint descriptor */
-
- OHCI_APPEND_QH(ed, sc->sc_isoc_p_last);
-}
-
-static void
-ohci_device_isoc_start(struct usb2_xfer *xfer)
-{
- /* put transfer on interrupt queue */
- ohci_transfer_intr_enqueue(xfer);
-}
-
-struct usb2_pipe_methods ohci_device_isoc_methods =
-{
- .open = ohci_device_isoc_open,
- .close = ohci_device_isoc_close,
- .enter = ohci_device_isoc_enter,
- .start = ohci_device_isoc_start,
- .enter_is_cancelable = 1,
- .start_is_cancelable = 1,
-};
-
-/*------------------------------------------------------------------------*
- * ohci root control support
- *------------------------------------------------------------------------*
- * simulate a hardware hub by handling
- * all the necessary requests
- *------------------------------------------------------------------------*/
-
-static void
-ohci_root_ctrl_open(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_root_ctrl_close(struct usb2_xfer *xfer)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- if (sc->sc_root_ctrl.xfer == xfer) {
- sc->sc_root_ctrl.xfer = NULL;
- }
- ohci_device_done(xfer, USB_ERR_CANCELLED);
-}
-
-/* data structures and routines
- * to emulate the root hub:
- */
-static const
-struct usb2_device_descriptor ohci_devd =
-{
- sizeof(struct usb2_device_descriptor),
- UDESC_DEVICE, /* type */
- {0x00, 0x01}, /* USB version */
- UDCLASS_HUB, /* class */
- UDSUBCLASS_HUB, /* subclass */
- UDPROTO_FSHUB, /* protocol */
- 64, /* max packet */
- {0}, {0}, {0x00, 0x01}, /* device id */
- 1, 2, 0, /* string indicies */
- 1 /* # of configurations */
-};
-
-static const
-struct ohci_config_desc ohci_confd =
-{
- .confd = {
- .bLength = sizeof(struct usb2_config_descriptor),
- .bDescriptorType = UDESC_CONFIG,
- .wTotalLength[0] = sizeof(ohci_confd),
- .bNumInterface = 1,
- .bConfigurationValue = 1,
- .iConfiguration = 0,
- .bmAttributes = UC_SELF_POWERED,
- .bMaxPower = 0, /* max power */
- },
-
- .ifcd = {
- .bLength = sizeof(struct usb2_interface_descriptor),
- .bDescriptorType = UDESC_INTERFACE,
- .bNumEndpoints = 1,
- .bInterfaceClass = UICLASS_HUB,
- .bInterfaceSubClass = UISUBCLASS_HUB,
- .bInterfaceProtocol = UIPROTO_FSHUB,
- },
-
- .endpd = {
- .bLength = sizeof(struct usb2_endpoint_descriptor),
- .bDescriptorType = UDESC_ENDPOINT,
- .bEndpointAddress = UE_DIR_IN | OHCI_INTR_ENDPT,
- .bmAttributes = UE_INTERRUPT,
- .wMaxPacketSize[0] = 32,/* max packet (255 ports) */
- .bInterval = 255,
- },
-};
-
-static const
-struct usb2_hub_descriptor ohci_hubd =
-{
- 0, /* dynamic length */
- UDESC_HUB,
- 0,
- {0, 0},
- 0,
- 0,
- {0},
-};
-
-static void
-ohci_root_ctrl_enter(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_root_ctrl_start(struct usb2_xfer *xfer)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- sc->sc_root_ctrl.xfer = xfer;
-
- usb2_bus_roothub_exec(xfer->xroot->bus);
-}
-
-static void
-ohci_root_ctrl_task(struct usb2_bus *bus)
-{
- ohci_root_ctrl_poll(OHCI_BUS2SC(bus));
-}
-
-static void
-ohci_root_ctrl_done(struct usb2_xfer *xfer,
- struct usb2_sw_transfer *std)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
- char *ptr;
- uint32_t port;
- uint32_t v;
- uint16_t value;
- uint16_t index;
- uint8_t l;
- uint8_t use_polling;
-
- USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED);
-
- if (std->state != USB_SW_TR_SETUP) {
- if (std->state == USB_SW_TR_PRE_CALLBACK) {
- /* transfer transferred */
- ohci_device_done(xfer, std->err);
- }
- goto done;
- }
- /* buffer reset */
- std->ptr = sc->sc_hub_desc.temp;
- std->len = 0;
-
- value = UGETW(std->req.wValue);
- index = UGETW(std->req.wIndex);
-
- use_polling = mtx_owned(xfer->xroot->xfer_mtx) ? 1 : 0;
-
- DPRINTFN(3, "type=0x%02x request=0x%02x wLen=0x%04x "
- "wValue=0x%04x wIndex=0x%04x\n",
- std->req.bmRequestType, std->req.bRequest,
- UGETW(std->req.wLength), value, index);
-
-#define C(x,y) ((x) | ((y) << 8))
- switch (C(std->req.bRequest, std->req.bmRequestType)) {
- case C(UR_CLEAR_FEATURE, UT_WRITE_DEVICE):
- case C(UR_CLEAR_FEATURE, UT_WRITE_INTERFACE):
- case C(UR_CLEAR_FEATURE, UT_WRITE_ENDPOINT):
- /*
- * DEVICE_REMOTE_WAKEUP and ENDPOINT_HALT are no-ops
- * for the integrated root hub.
- */
- break;
- case C(UR_GET_CONFIG, UT_READ_DEVICE):
- std->len = 1;
- sc->sc_hub_desc.temp[0] = sc->sc_conf;
- break;
- case C(UR_GET_DESCRIPTOR, UT_READ_DEVICE):
- switch (value >> 8) {
- case UDESC_DEVICE:
- if ((value & 0xff) != 0) {
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- std->len = sizeof(ohci_devd);
- sc->sc_hub_desc.devd = ohci_devd;
- break;
-
- case UDESC_CONFIG:
- if ((value & 0xff) != 0) {
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- std->len = sizeof(ohci_confd);
- std->ptr = USB_ADD_BYTES(&ohci_confd, 0);
- break;
-
- case UDESC_STRING:
- switch (value & 0xff) {
- case 0: /* Language table */
- ptr = "\001";
- break;
-
- case 1: /* Vendor */
- ptr = sc->sc_vendor;
- break;
-
- case 2: /* Product */
- ptr = "OHCI root HUB";
- break;
-
- default:
- ptr = "";
- break;
- }
-
- std->len = usb2_make_str_desc
- (sc->sc_hub_desc.temp,
- sizeof(sc->sc_hub_desc.temp),
- ptr);
- break;
-
- default:
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- break;
- case C(UR_GET_INTERFACE, UT_READ_INTERFACE):
- std->len = 1;
- sc->sc_hub_desc.temp[0] = 0;
- break;
- case C(UR_GET_STATUS, UT_READ_DEVICE):
- std->len = 2;
- USETW(sc->sc_hub_desc.stat.wStatus, UDS_SELF_POWERED);
- break;
- case C(UR_GET_STATUS, UT_READ_INTERFACE):
- case C(UR_GET_STATUS, UT_READ_ENDPOINT):
- std->len = 2;
- USETW(sc->sc_hub_desc.stat.wStatus, 0);
- break;
- case C(UR_SET_ADDRESS, UT_WRITE_DEVICE):
- if (value >= USB_MAX_DEVICES) {
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- sc->sc_addr = value;
- break;
- case C(UR_SET_CONFIG, UT_WRITE_DEVICE):
- if ((value != 0) && (value != 1)) {
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- sc->sc_conf = value;
- break;
- case C(UR_SET_DESCRIPTOR, UT_WRITE_DEVICE):
- break;
- case C(UR_SET_FEATURE, UT_WRITE_DEVICE):
- case C(UR_SET_FEATURE, UT_WRITE_INTERFACE):
- case C(UR_SET_FEATURE, UT_WRITE_ENDPOINT):
- std->err = USB_ERR_IOERROR;
- goto done;
- case C(UR_SET_INTERFACE, UT_WRITE_INTERFACE):
- break;
- case C(UR_SYNCH_FRAME, UT_WRITE_ENDPOINT):
- break;
- /* Hub requests */
- case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_DEVICE):
- break;
- case C(UR_CLEAR_FEATURE, UT_WRITE_CLASS_OTHER):
- DPRINTFN(9, "UR_CLEAR_PORT_FEATURE "
- "port=%d feature=%d\n",
- index, value);
- if ((index < 1) ||
- (index > sc->sc_noport)) {
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- port = OHCI_RH_PORT_STATUS(index);
- switch (value) {
- case UHF_PORT_ENABLE:
- OWRITE4(sc, port, UPS_CURRENT_CONNECT_STATUS);
- break;
- case UHF_PORT_SUSPEND:
- OWRITE4(sc, port, UPS_OVERCURRENT_INDICATOR);
- break;
- case UHF_PORT_POWER:
- /* Yes, writing to the LOW_SPEED bit clears power. */
- OWRITE4(sc, port, UPS_LOW_SPEED);
- break;
- case UHF_C_PORT_CONNECTION:
- OWRITE4(sc, port, UPS_C_CONNECT_STATUS << 16);
- break;
- case UHF_C_PORT_ENABLE:
- OWRITE4(sc, port, UPS_C_PORT_ENABLED << 16);
- break;
- case UHF_C_PORT_SUSPEND:
- OWRITE4(sc, port, UPS_C_SUSPEND << 16);
- break;
- case UHF_C_PORT_OVER_CURRENT:
- OWRITE4(sc, port, UPS_C_OVERCURRENT_INDICATOR << 16);
- break;
- case UHF_C_PORT_RESET:
- OWRITE4(sc, port, UPS_C_PORT_RESET << 16);
- break;
- default:
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- switch (value) {
- case UHF_C_PORT_CONNECTION:
- case UHF_C_PORT_ENABLE:
- case UHF_C_PORT_SUSPEND:
- case UHF_C_PORT_OVER_CURRENT:
- case UHF_C_PORT_RESET:
- /* enable RHSC interrupt if condition is cleared. */
- if ((OREAD4(sc, port) >> 16) == 0)
- ohci_rhsc_enable(sc);
- break;
- default:
- break;
- }
- break;
- case C(UR_GET_DESCRIPTOR, UT_READ_CLASS_DEVICE):
- if ((value & 0xff) != 0) {
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- v = OREAD4(sc, OHCI_RH_DESCRIPTOR_A);
-
- sc->sc_hub_desc.hubd = ohci_hubd;
- sc->sc_hub_desc.hubd.bNbrPorts = sc->sc_noport;
- USETW(sc->sc_hub_desc.hubd.wHubCharacteristics,
- (v & OHCI_NPS ? UHD_PWR_NO_SWITCH :
- v & OHCI_PSM ? UHD_PWR_GANGED : UHD_PWR_INDIVIDUAL)
- /* XXX overcurrent */
- );
- sc->sc_hub_desc.hubd.bPwrOn2PwrGood = OHCI_GET_POTPGT(v);
- v = OREAD4(sc, OHCI_RH_DESCRIPTOR_B);
-
- for (l = 0; l < sc->sc_noport; l++) {
- if (v & 1) {
- sc->sc_hub_desc.hubd.DeviceRemovable[l / 8] |= (1 << (l % 8));
- }
- v >>= 1;
- }
- sc->sc_hub_desc.hubd.bDescLength =
- 8 + ((sc->sc_noport + 7) / 8);
- std->len = sc->sc_hub_desc.hubd.bDescLength;
- break;
-
- case C(UR_GET_STATUS, UT_READ_CLASS_DEVICE):
- std->len = 16;
- bzero(sc->sc_hub_desc.temp, 16);
- break;
- case C(UR_GET_STATUS, UT_READ_CLASS_OTHER):
- DPRINTFN(9, "get port status i=%d\n",
- index);
- if ((index < 1) ||
- (index > sc->sc_noport)) {
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- v = OREAD4(sc, OHCI_RH_PORT_STATUS(index));
- DPRINTFN(9, "port status=0x%04x\n", v);
- USETW(sc->sc_hub_desc.ps.wPortStatus, v);
- USETW(sc->sc_hub_desc.ps.wPortChange, v >> 16);
- std->len = sizeof(sc->sc_hub_desc.ps);
- break;
- case C(UR_SET_DESCRIPTOR, UT_WRITE_CLASS_DEVICE):
- std->err = USB_ERR_IOERROR;
- goto done;
- case C(UR_SET_FEATURE, UT_WRITE_CLASS_DEVICE):
- break;
- case C(UR_SET_FEATURE, UT_WRITE_CLASS_OTHER):
- if ((index < 1) ||
- (index > sc->sc_noport)) {
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- port = OHCI_RH_PORT_STATUS(index);
- switch (value) {
- case UHF_PORT_ENABLE:
- OWRITE4(sc, port, UPS_PORT_ENABLED);
- break;
- case UHF_PORT_SUSPEND:
- OWRITE4(sc, port, UPS_SUSPEND);
- break;
- case UHF_PORT_RESET:
- DPRINTFN(6, "reset port %d\n", index);
- OWRITE4(sc, port, UPS_RESET);
- for (v = 0;; v++) {
- if (v < 12) {
- if (use_polling) {
- /* polling */
- DELAY(USB_PORT_ROOT_RESET_DELAY * 1000);
- } else {
- usb2_pause_mtx(&sc->sc_bus.bus_mtx,
- USB_MS_TO_TICKS(USB_PORT_ROOT_RESET_DELAY));
- }
-
- if ((OREAD4(sc, port) & UPS_RESET) == 0) {
- break;
- }
- } else {
- std->err = USB_ERR_TIMEOUT;
- goto done;
- }
- }
- DPRINTFN(9, "ohci port %d reset, status = 0x%04x\n",
- index, OREAD4(sc, port));
- break;
- case UHF_PORT_POWER:
- DPRINTFN(3, "set port power %d\n", index);
- OWRITE4(sc, port, UPS_PORT_POWER);
- break;
- default:
- std->err = USB_ERR_IOERROR;
- goto done;
- }
- break;
- default:
- std->err = USB_ERR_IOERROR;
- goto done;
- }
-done:
- return;
-}
-
-static void
-ohci_root_ctrl_poll(struct ohci_softc *sc)
-{
- usb2_sw_transfer(&sc->sc_root_ctrl,
- &ohci_root_ctrl_done);
-}
-
-struct usb2_pipe_methods ohci_root_ctrl_methods =
-{
- .open = ohci_root_ctrl_open,
- .close = ohci_root_ctrl_close,
- .enter = ohci_root_ctrl_enter,
- .start = ohci_root_ctrl_start,
- .enter_is_cancelable = 1,
- .start_is_cancelable = 0,
-};
-
-/*------------------------------------------------------------------------*
- * ohci root interrupt support
- *------------------------------------------------------------------------*/
-static void
-ohci_root_intr_open(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_root_intr_close(struct usb2_xfer *xfer)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- if (sc->sc_root_intr.xfer == xfer) {
- sc->sc_root_intr.xfer = NULL;
- }
- ohci_device_done(xfer, USB_ERR_CANCELLED);
-}
-
-static void
-ohci_root_intr_enter(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_root_intr_start(struct usb2_xfer *xfer)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(xfer->xroot->bus);
-
- sc->sc_root_intr.xfer = xfer;
-}
-
-struct usb2_pipe_methods ohci_root_intr_methods =
-{
- .open = ohci_root_intr_open,
- .close = ohci_root_intr_close,
- .enter = ohci_root_intr_enter,
- .start = ohci_root_intr_start,
- .enter_is_cancelable = 1,
- .start_is_cancelable = 1,
-};
-
-static void
-ohci_xfer_setup(struct usb2_setup_params *parm)
-{
- struct usb2_page_search page_info;
- struct usb2_page_cache *pc;
- ohci_softc_t *sc;
- struct usb2_xfer *xfer;
- void *last_obj;
- uint32_t ntd;
- uint32_t nitd;
- uint32_t nqh;
- uint32_t n;
-
- sc = OHCI_BUS2SC(parm->udev->bus);
- xfer = parm->curr_xfer;
-
- parm->hc_max_packet_size = 0x500;
- parm->hc_max_packet_count = 1;
- parm->hc_max_frame_size = OHCI_PAGE_SIZE;
-
- /*
- * calculate ntd and nqh
- */
- if (parm->methods == &ohci_device_ctrl_methods) {
- xfer->flags_int.bdma_enable = 1;
-
- usb2_transfer_setup_sub(parm);
-
- nitd = 0;
- ntd = ((2 * xfer->nframes) + 1 /* STATUS */
- + (xfer->max_data_length / xfer->max_usb2_frame_size));
- nqh = 1;
-
- } else if (parm->methods == &ohci_device_bulk_methods) {
- xfer->flags_int.bdma_enable = 1;
-
- usb2_transfer_setup_sub(parm);
-
- nitd = 0;
- ntd = ((2 * xfer->nframes)
- + (xfer->max_data_length / xfer->max_usb2_frame_size));
- nqh = 1;
-
- } else if (parm->methods == &ohci_device_intr_methods) {
- xfer->flags_int.bdma_enable = 1;
-
- usb2_transfer_setup_sub(parm);
-
- nitd = 0;
- ntd = ((2 * xfer->nframes)
- + (xfer->max_data_length / xfer->max_usb2_frame_size));
- nqh = 1;
-
- } else if (parm->methods == &ohci_device_isoc_methods) {
- xfer->flags_int.bdma_enable = 1;
-
- usb2_transfer_setup_sub(parm);
-
- nitd = ((xfer->max_data_length / OHCI_PAGE_SIZE) +
- ((xfer->nframes + OHCI_ITD_NOFFSET - 1) / OHCI_ITD_NOFFSET) +
- 1 /* EXTRA */ );
- ntd = 0;
- nqh = 1;
-
- } else {
-
- usb2_transfer_setup_sub(parm);
-
- nitd = 0;
- ntd = 0;
- nqh = 0;
- }
-
-alloc_dma_set:
-
- if (parm->err) {
- return;
- }
- last_obj = NULL;
-
- if (usb2_transfer_setup_sub_malloc(
- parm, &pc, sizeof(ohci_td_t),
- OHCI_TD_ALIGN, ntd)) {
- parm->err = USB_ERR_NOMEM;
- return;
- }
- if (parm->buf) {
- for (n = 0; n != ntd; n++) {
- ohci_td_t *td;
-
- usb2_get_page(pc + n, 0, &page_info);
-
- td = page_info.buffer;
-
- /* init TD */
- td->td_self = htole32(page_info.physaddr);
- td->obj_next = last_obj;
- td->page_cache = pc + n;
-
- last_obj = td;
-
- usb2_pc_cpu_flush(pc + n);
- }
- }
- if (usb2_transfer_setup_sub_malloc(
- parm, &pc, sizeof(ohci_itd_t),
- OHCI_ITD_ALIGN, nitd)) {
- parm->err = USB_ERR_NOMEM;
- return;
- }
- if (parm->buf) {
- for (n = 0; n != nitd; n++) {
- ohci_itd_t *itd;
-
- usb2_get_page(pc + n, 0, &page_info);
-
- itd = page_info.buffer;
-
- /* init TD */
- itd->itd_self = htole32(page_info.physaddr);
- itd->obj_next = last_obj;
- itd->page_cache = pc + n;
-
- last_obj = itd;
-
- usb2_pc_cpu_flush(pc + n);
- }
- }
- xfer->td_start[xfer->flags_int.curr_dma_set] = last_obj;
-
- last_obj = NULL;
-
- if (usb2_transfer_setup_sub_malloc(
- parm, &pc, sizeof(ohci_ed_t),
- OHCI_ED_ALIGN, nqh)) {
- parm->err = USB_ERR_NOMEM;
- return;
- }
- if (parm->buf) {
- for (n = 0; n != nqh; n++) {
- ohci_ed_t *ed;
-
- usb2_get_page(pc + n, 0, &page_info);
-
- ed = page_info.buffer;
-
- /* init QH */
- ed->ed_self = htole32(page_info.physaddr);
- ed->obj_next = last_obj;
- ed->page_cache = pc + n;
-
- last_obj = ed;
-
- usb2_pc_cpu_flush(pc + n);
- }
- }
- xfer->qh_start[xfer->flags_int.curr_dma_set] = last_obj;
-
- if (!xfer->flags_int.curr_dma_set) {
- xfer->flags_int.curr_dma_set = 1;
- goto alloc_dma_set;
- }
-}
-
-static void
-ohci_pipe_init(struct usb2_device *udev, struct usb2_endpoint_descriptor *edesc,
- struct usb2_pipe *pipe)
-{
- ohci_softc_t *sc = OHCI_BUS2SC(udev->bus);
-
- DPRINTFN(2, "pipe=%p, addr=%d, endpt=%d, mode=%d (%d)\n",
- pipe, udev->address,
- edesc->bEndpointAddress, udev->flags.usb2_mode,
- sc->sc_addr);
-
- if (udev->flags.usb2_mode != USB_MODE_HOST) {
- /* not supported */
- return;
- }
- if (udev->device_index == sc->sc_addr) {
- switch (edesc->bEndpointAddress) {
- case USB_CONTROL_ENDPOINT:
- pipe->methods = &ohci_root_ctrl_methods;
- break;
- case UE_DIR_IN | OHCI_INTR_ENDPT:
- pipe->methods = &ohci_root_intr_methods;
- break;
- default:
- /* do nothing */
- break;
- }
- } else {
- switch (edesc->bmAttributes & UE_XFERTYPE) {
- case UE_CONTROL:
- pipe->methods = &ohci_device_ctrl_methods;
- break;
- case UE_INTERRUPT:
- pipe->methods = &ohci_device_intr_methods;
- break;
- case UE_ISOCHRONOUS:
- if (udev->speed == USB_SPEED_FULL) {
- pipe->methods = &ohci_device_isoc_methods;
- }
- break;
- case UE_BULK:
- if (udev->speed != USB_SPEED_LOW) {
- pipe->methods = &ohci_device_bulk_methods;
- }
- break;
- default:
- /* do nothing */
- break;
- }
- }
-}
-
-static void
-ohci_xfer_unsetup(struct usb2_xfer *xfer)
-{
- return;
-}
-
-static void
-ohci_get_dma_delay(struct usb2_bus *bus, uint32_t *pus)
-{
- /*
- * Wait until hardware has finished any possible use of the
- * transfer descriptor(s) and QH
- */
- *pus = (1125); /* microseconds */
-}
-
-static void
-ohci_device_resume(struct usb2_device *udev)
-{
- struct ohci_softc *sc = OHCI_BUS2SC(udev->bus);
- struct usb2_xfer *xfer;
- struct usb2_pipe_methods *methods;
- ohci_ed_t *ed;
-
- DPRINTF("\n");
-
- USB_BUS_LOCK(udev->bus);
-
- TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
-
- if (xfer->xroot->udev == udev) {
-
- methods = xfer->pipe->methods;
- ed = xfer->qh_start[xfer->flags_int.curr_dma_set];
-
- if (methods == &ohci_device_bulk_methods) {
- OHCI_APPEND_QH(ed, sc->sc_bulk_p_last);
- OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_BLF);
- }
- if (methods == &ohci_device_ctrl_methods) {
- OHCI_APPEND_QH(ed, sc->sc_ctrl_p_last);
- OWRITE4(sc, OHCI_COMMAND_STATUS, OHCI_CLF);
- }
- if (methods == &ohci_device_intr_methods) {
- OHCI_APPEND_QH(ed, sc->sc_intr_p_last[xfer->qh_pos]);
- }
- }
- }
-
- USB_BUS_UNLOCK(udev->bus);
-
- return;
-}
-
-static void
-ohci_device_suspend(struct usb2_device *udev)
-{
- struct ohci_softc *sc = OHCI_BUS2SC(udev->bus);
- struct usb2_xfer *xfer;
- struct usb2_pipe_methods *methods;
- ohci_ed_t *ed;
-
- DPRINTF("\n");
-
- USB_BUS_LOCK(udev->bus);
-
- TAILQ_FOREACH(xfer, &sc->sc_bus.intr_q.head, wait_entry) {
-
- if (xfer->xroot->udev == udev) {
-
- methods = xfer->pipe->methods;
- ed = xfer->qh_start[xfer->flags_int.curr_dma_set];
-
- if (methods == &ohci_device_bulk_methods) {
- OHCI_REMOVE_QH(ed, sc->sc_bulk_p_last);
- }
- if (methods == &ohci_device_ctrl_methods) {
- OHCI_REMOVE_QH(ed, sc->sc_ctrl_p_last);
- }
- if (methods == &ohci_device_intr_methods) {
- OHCI_REMOVE_QH(ed, sc->sc_intr_p_last[xfer->qh_pos]);
- }
- }
- }
-
- USB_BUS_UNLOCK(udev->bus);
-
- return;
-}
-
-static void
-ohci_set_hw_power(struct usb2_bus *bus)
-{
- struct ohci_softc *sc = OHCI_BUS2SC(bus);
- uint32_t temp;
- uint32_t flags;
-
- DPRINTF("\n");
-
- USB_BUS_LOCK(bus);
-
- flags = bus->hw_power_state;
-
- temp = OREAD4(sc, OHCI_CONTROL);
- temp &= ~(OHCI_PLE | OHCI_IE | OHCI_CLE | OHCI_BLE);
-
- if (flags & USB_HW_POWER_CONTROL)
- temp |= OHCI_CLE;
-
- if (flags & USB_HW_POWER_BULK)
- temp |= OHCI_BLE;
-
- if (flags & USB_HW_POWER_INTERRUPT)
- temp |= OHCI_PLE;
-
- if (flags & USB_HW_POWER_ISOC)
- temp |= OHCI_IE | OHCI_PLE;
-
- OWRITE4(sc, OHCI_CONTROL, temp);
-
- USB_BUS_UNLOCK(bus);
-
- return;
-}
-
-struct usb2_bus_methods ohci_bus_methods =
-{
- .pipe_init = ohci_pipe_init,
- .xfer_setup = ohci_xfer_setup,
- .xfer_unsetup = ohci_xfer_unsetup,
- .do_poll = ohci_do_poll,
- .get_dma_delay = ohci_get_dma_delay,
- .device_resume = ohci_device_resume,
- .device_suspend = ohci_device_suspend,
- .set_hw_power = ohci_set_hw_power,
- .roothub_exec = ohci_root_ctrl_task,
-};
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