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[cdi-devel] [PATCH 3/6] OHCI
From: Max Reitz <max@xxxxxxxxxx>
+ Added USB open host controller driver
Signed-off-by: Max Reitz <max@xxxxxxxxxx>
---
ohci/hcd.c | 315 ++++++++++++++++++++++++++++++++++++++++++
ohci/include/ohci-hcd.h | 39 +++++
ohci/include/ohci-init.h | 31 ++++
ohci/include/ohci-transfer.h | 30 ++++
ohci/include/ohci.h | 283 +++++++++++++++++++++++++++++++++++++
ohci/init.c | 241 ++++++++++++++++++++++++++++++++
ohci/main.c | 34 +++++
ohci/transfer.c | 85 +++++++++++
8 files changed, 1058 insertions(+), 0 deletions(-)
create mode 100644 ohci/hcd.c
create mode 100644 ohci/include/ohci-hcd.h
create mode 100644 ohci/include/ohci-init.h
create mode 100644 ohci/include/ohci-transfer.h
create mode 100644 ohci/include/ohci.h
create mode 100644 ohci/init.c
create mode 100644 ohci/main.c
create mode 100644 ohci/transfer.c
diff --git a/ohci/hcd.c b/ohci/hcd.c
new file mode 100644
index 0000000..8296ba9
--- /dev/null
+++ b/ohci/hcd.c
@@ -0,0 +1,315 @@
+/*****************************************************************************
+* Copyright (c) 2009 Max Reitz *
+* *
+* Permission is hereby granted, free of charge, to any person obtaining a *
+* copy of this software and associated documentation files (the "Software"), *
+* to deal in the Software without restriction, including without limitation *
+* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
+* and/or sell copies of the Software, and to permit persons to whom the *
+* Software is furnished to do so, subject to the following conditions: *
+* *
+* The above copyright notice and this permission notice shall be included in *
+* all copies or substantial portions of the Software. *
+* *
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
+* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
+* DEALINGS IN THE SOFTWARE. *
+*****************************************************************************/
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <cdi/io.h>
+#include <cdi/lists.h>
+#include <cdi/mempool.h>
+#include <cdi/usb.h>
+#include <cdi/usb-hcd.h>
+
+#include "ohci.h"
+#include "ohci-hcd.h"
+
+static void reset_device(struct cdi_usb_device *device);
+
+static void find_devices(struct cdi_usb_hc *device)
+{
+ struct ohci *ohci = (struct ohci *)device;
+ struct cdi_usb_device *dev;
+ int i;
+
+ d0printf("Scanning root ports\n");
+ for (i = 0; i < ohci->root_ports; i++) {
+ if (!(ohci->memory->hc_rh_port_status[i] & OHC_RP_CCS)) {
+ continue;
+ }
+ dev = malloc(sizeof(struct cdi_usb_device));
+ dev->hc = device;
+ dev->id = 0;
+ dev->port = i;
+ dev->speed = (ohci->memory->hc_rh_port_status[i] & OHC_RP_LSDA) ?
+ CDI_USB_LOW_SPEED : CDI_USB_FULL_SPEED;
+ dev->reset = &reset_device;
+ cdi_usb_device_init(dev);
+ }
+}
+
+static void activate_device(struct cdi_usb_device *device)
+{
+ struct ohci *ohci = (struct ohci *)device->hc;
+
+ if (device->hub != NULL) {
+ return;
+ }
+
+ d1printf("Activating device on port %i.\n", device->port);
+ ohci->memory->hc_rh_port_status[device->port] |= OHC_RP_PES;
+ cdi_sleep_ms(20);
+}
+
+static void reset_device(struct cdi_usb_device *device)
+{
+ struct ohci *ohci = (struct ohci *)device->hc;
+
+ if (device->hub != NULL) {
+ return;
+ }
+
+ d1printf("Resetting device on port %i.\n", device->port);
+ ohci->memory->hc_rh_port_status[device->port] |= OHC_RP_PRS;
+ cdi_sleep_ms(20);
+}
+
+static void add_pipe(struct cdi_usb_pipe *pipe)
+{
+ struct ohci *ohci = (struct ohci *)pipe->device->hc;
+ struct ohci_ed *ved;
+ uintptr_t ped;
+ struct ohci_ed_desc *dsc;
+ //TODO Mehr als Control und Bulk
+ int iscontrol = 0;
+
+ if (mempool_get(ohci->ed_pool, (void **)&ved, &ped) == -1) {
+ return;
+ }
+ ved->function = pipe->device->id;
+ ved->endpoint = pipe->endpoint->endpoint_address;
+ if (ved->endpoint == 0) {
+ //EP0
+ ved->direction = OHC_ED_DIR_TD;
+ iscontrol = 1;
+ } else if (pipe->endpoint->endpoint_address & 0x80) {
+ ved->direction = OHC_ED_DIR_IN;
+ } else {
+ ved->direction = OHC_ED_DIR_OUT;
+ }
+ ved->low_speed = !!(pipe->device->speed == CDI_USB_LOW_SPEED);
+ ved->skip = 0;
+ ved->format = 0;
+ ved->mps = pipe->endpoint->max_packet_size;
+ ved->td_queue_tail = 0;
+ ved->td_queue_head = 0;
+ dsc = cdi_list_get(ohci->ed_list, 0);
+ if (dsc == NULL) {
+ ved->next_ed = 0;
+ } else {
+ ved->next_ed = dsc->phys;
+ }
+ dsc = malloc(sizeof(*dsc));
+ if (dsc == NULL) {
+ mempool_put(ohci->ed_pool, ved);
+ return;
+ }
+ dsc->virt = ved;
+ dsc->phys = ped;
+ dsc->function = pipe->device->id;
+ dsc->endpoint = pipe->endpoint->endpoint_address;
+ dsc->type = iscontrol ? USB_CONTROL : USB_BULK;
+ dsc->transfers = cdi_list_create();
+ cdi_list_push(ohci->ed_list, dsc);
+
+ if (iscontrol) {
+ ohci->memory->hc_control_head_ed = ped;
+ } else {
+ ohci->memory->hc_bulk_head_ed = ped;
+ }
+}
+
+static inline int _tsl(volatile int *variable)
+{
+ int rval;
+ rval = *variable;
+ *variable = 1;
+ return rval;
+}
+
+static volatile int locked = 0;
+
+static cdi_usb_status_t do_packets(struct cdi_usb_packet *packets,
+ size_t num_packets)
+{
+ struct ohci_ed_desc *edsc;
+ struct ohci_td_desc *tdsc, *otdsc;
+ int i, j, cond, toggle, done_packets;
+ struct ohci *ohci = (struct ohci *)packets[0].pipe->device->hc;
+ struct ohci_td *vtd[num_packets];
+ uintptr_t ptd[num_packets];
+
+ for (i = 0; (edsc = cdi_list_get(ohci->ed_list, i)) != NULL; i++) {
+ if ((edsc->function == packets[0].pipe->device->id) &&
+ (edsc->endpoint == packets[0].pipe->endpoint->endpoint_address))
+ {
+ break;
+ }
+ }
+ if (edsc == NULL) {
+ return CDI_USB_TIMEOUT; //Genau das würde passieren
+ }
+
+ toggle = packets[0].pipe->data_toggle;
+ for (i = 0; i < (int)num_packets; i++) {
+ if (mempool_get(ohci->transfer_pool, (void **)&vtd[i], &ptd[i]) == -1)
+ {
+ return CDI_USB_TRIVIAL_ERROR;
+ }
+ if ((packets[i].data != NULL) &&
+ (packets[i].type != CDI_USB_PACKET_IN))
+ {
+ memcpy((void *)((uintptr_t)vtd[i] + sizeof(struct ohci_td)),
+ packets[i].data, packets[i].length);
+ }
+ vtd[i]->rounding = 1; //Warum nicht
+ switch (packets[i].type) {
+ case CDI_USB_PACKET_SETUP:
+ vtd[i]->direction = OHC_TD_DIR_SETUP;
+ break;
+ case CDI_USB_PACKET_IN:
+ vtd[i]->direction = OHC_TD_DIR_IN;
+ break;
+ case CDI_USB_PACKET_OUT:
+ vtd[i]->direction = OHC_TD_DIR_OUT;
+ break;
+ default: //Hm, passt nicht ganz
+ for (j = 0; j <= i; j++) {
+ mempool_put(ohci->transfer_pool, vtd[j]);
+ }
+ return CDI_USB_TRIVIAL_ERROR;
+ }
+ vtd[i]->di = 0;
+ if (packets[i].use_toggle == TOGGLE_0) {
+ toggle = 0;
+ } else if (packets[i].use_toggle == TOGGLE_1) {
+ toggle = 1;
+ }
+ vtd[i]->toggle = 0x2 | toggle;
+ toggle ^= 1;
+ vtd[i]->error = 0;
+ vtd[i]->condition = 15;
+ if ((packets[i].data == NULL) || !packets[i].length) {
+ vtd[i]->current_buffer_pointer = 0;
+ vtd[i]->buffer_end = 0;
+ } else {
+ vtd[i]->current_buffer_pointer = ptd[i] + sizeof(struct ohci_td);
+ vtd[i]->buffer_end = ptd[i] +
+ sizeof(struct ohci_td) + packets[i].length - 1;
+ }
+ vtd[i]->next_td = 0;
+ tdsc = malloc(sizeof(*tdsc));
+ if (tdsc == NULL) {
+ for (j = 0; j <= i; j++) {
+ mempool_put(ohci->transfer_pool, vtd[j]);
+ }
+ return CDI_USB_TRIVIAL_ERROR;
+ }
+ tdsc->virt = vtd[i];
+ tdsc->phys = ptd[i];
+ tdsc->endpoint = edsc;
+
+ if (cdi_list_size(edsc->transfers)) {
+ otdsc = cdi_list_get(edsc->transfers, 0);
+ otdsc->virt->next_td = ptd[i];
+ }
+ if (!edsc->virt->td_queue_head) {
+ edsc->virt->td_queue_head = ptd[i];
+ }
+
+ cdi_list_push(edsc->transfers, tdsc);
+ }
+ packets[0].pipe->data_toggle = toggle;
+ if (edsc->type == USB_CONTROL) {
+ ohci->memory->hc_command_status |= OHC_CMST_CLF;
+ } else if (edsc->type == USB_BULK) {
+ ohci->memory->hc_command_status |= OHC_CMST_BLF;
+ }
+ done_packets = 0;
+ cond = CDI_USB_NO_ERROR;
+ while (done_packets < (int)num_packets) {
+ cdi_sleep_ms(1);
+ for (i = 0; i < (int)num_packets; i++) {
+ if (vtd[i]->condition != 15) {
+ done_packets++;
+ switch (vtd[i]->condition) {
+ case 0x00:
+ packets[i].condition = CDI_USB_NO_ERROR;
+ break;
+ case 0x02:
+ packets[i].condition = CDI_USB_BITSTUFF;
+ break;
+ case 0x04:
+ packets[i].condition = CDI_USB_STALLED;
+ for (j = 0; j < (int)num_packets; j++) {
+ //Allet, was nicht fertig ist, ist STALLed
+ vtd[j]->condition = 0x04;
+ }
+ break;
+ case 0x05:
+ packets[i].condition = CDI_USB_TIMEOUT;
+ break;
+ case 0x08:
+ packets[i].condition = CDI_USB_BABBLE;
+ break;
+ case 0x0C:
+ case 0x0D:
+ packets[i].condition = CDI_USB_BUFFER_ERROR;
+ break;
+ default:
+ packets[i].condition = CDI_USB_CRC;
+ break;
+ }
+ cond |= packets[i].condition;
+ vtd[i]->condition = 15; //Nicht nochmal überprüfen
+ }
+ }
+ }
+ for (i = 0; i < (int)num_packets; i++) {
+ if ((packets[i].data != NULL) &&
+ (packets[i].type == CDI_USB_PACKET_IN))
+ {
+ memcpy(packets[i].data, (void *)((uintptr_t)vtd[i] +
+ sizeof(struct ohci_td)), packets[i].length);
+ }
+ if (vtd[i]->next_td == 0) {
+ edsc->virt->td_queue_head = 0;
+ }
+ mempool_put(ohci->transfer_pool, vtd[i]);
+ }
+ if (cond & CDI_USB_STALLED) {
+ //Transferliste für diesen Endpoint leeren
+ edsc->virt->td_queue_head = 0;
+ while ((tdsc = cdi_list_pop(edsc->transfers)) != NULL) {
+ free(tdsc);
+ }
+ edsc->virt->td_queue_tail = 0; //Weitermachen
+ }
+ return cond;
+}
+
+
+const struct ohci_functions ohci_functions = {
+ .find_devices = &find_devices,
+ .activate_device = &activate_device,
+ .send_packets = &do_packets,
+ .add_pipe = &add_pipe
+};
diff --git a/ohci/include/ohci-hcd.h b/ohci/include/ohci-hcd.h
new file mode 100644
index 0000000..ccb6345
--- /dev/null
+++ b/ohci/include/ohci-hcd.h
@@ -0,0 +1,39 @@
+/*****************************************************************************
+* Copyright (c) 2009 Max Reitz *
+* *
+* Permission is hereby granted, free of charge, to any person obtaining a *
+* copy of this software and associated documentation files (the "Software"), *
+* to deal in the Software without restriction, including without limitation *
+* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
+* and/or sell copies of the Software, and to permit persons to whom the *
+* Software is furnished to do so, subject to the following conditions: *
+* *
+* The above copyright notice and this permission notice shall be included in *
+* all copies or substantial portions of the Software. *
+* *
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
+* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
+* DEALINGS IN THE SOFTWARE. *
+*****************************************************************************/
+
+#ifndef UHCI_HCD_H
+#define UHCI_HCD_H
+
+#include <cdi/usb.h>
+#include <cdi/usb-hcd.h>
+
+struct ohci_functions {
+ void (*find_devices)(struct cdi_usb_hc *device);
+ void (*activate_device)(struct cdi_usb_device *device);
+ cdi_usb_status_t (*send_packets)(struct cdi_usb_packet *packets,
+ size_t num_packets);
+ void (*add_pipe)(struct cdi_usb_pipe *pipe);
+};
+
+cdi_list_t ohci_find_devices(struct cdi_usb_hc *device);
+
+#endif
diff --git a/ohci/include/ohci-init.h b/ohci/include/ohci-init.h
new file mode 100644
index 0000000..2f19d2c
--- /dev/null
+++ b/ohci/include/ohci-init.h
@@ -0,0 +1,31 @@
+/*****************************************************************************
+* Copyright (c) 2009 Max Reitz *
+* *
+* Permission is hereby granted, free of charge, to any person obtaining a *
+* copy of this software and associated documentation files (the "Software"), *
+* to deal in the Software without restriction, including without limitation *
+* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
+* and/or sell copies of the Software, and to permit persons to whom the *
+* Software is furnished to do so, subject to the following conditions: *
+* *
+* The above copyright notice and this permission notice shall be included in *
+* all copies or substantial portions of the Software. *
+* *
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
+* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
+* DEALINGS IN THE SOFTWARE. *
+*****************************************************************************/
+
+#ifndef OHCI_INIT_H
+#define OHCI_INIT_H
+
+#include "ohci.h"
+
+void find_and_init_ohcis(void);
+void ohci_init(struct cdi_device *dev);
+
+#endif
diff --git a/ohci/include/ohci-transfer.h b/ohci/include/ohci-transfer.h
new file mode 100644
index 0000000..a6dc6be
--- /dev/null
+++ b/ohci/include/ohci-transfer.h
@@ -0,0 +1,30 @@
+/*****************************************************************************
+* Copyright (c) 2009 Max Reitz *
+* *
+* Permission is hereby granted, free of charge, to any person obtaining a *
+* copy of this software and associated documentation files (the "Software"), *
+* to deal in the Software without restriction, including without limitation *
+* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
+* and/or sell copies of the Software, and to permit persons to whom the *
+* Software is furnished to do so, subject to the following conditions: *
+* *
+* The above copyright notice and this permission notice shall be included in *
+* all copies or substantial portions of the Software. *
+* *
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
+* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
+* DEALINGS IN THE SOFTWARE. *
+*****************************************************************************/
+
+#ifndef OHCI_TRANSFER_H
+#define OHCI_TRANSFER_H
+
+#include <cdi/misc.h>
+
+void ohci_handler(struct cdi_device *cdi_hci);
+
+#endif
diff --git a/ohci/include/ohci.h b/ohci/include/ohci.h
new file mode 100644
index 0000000..b06a280
--- /dev/null
+++ b/ohci/include/ohci.h
@@ -0,0 +1,283 @@
+/*****************************************************************************
+* Copyright (c) 2009 Max Reitz *
+* *
+* Permission is hereby granted, free of charge, to any person obtaining a *
+* copy of this software and associated documentation files (the "Software"), *
+* to deal in the Software without restriction, including without limitation *
+* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
+* and/or sell copies of the Software, and to permit persons to whom the *
+* Software is furnished to do so, subject to the following conditions: *
+* *
+* The above copyright notice and this permission notice shall be included in *
+* all copies or substantial portions of the Software. *
+* *
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
+* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
+* DEALINGS IN THE SOFTWARE. *
+*****************************************************************************/
+
+#ifndef OHCI_H
+#define OHCI_H
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include <cdi/misc.h>
+#include <cdi/pci.h>
+#include <cdi/usb-hcd.h>
+
+#include "ohci.h"
+
+
+//#define DEBUG
+
+#ifdef DEBUG
+#define d1printf(...) printf("[ohci] " __VA_ARGS__)
+#define _d1printf(...) printf(__VA_ARGS__)
+#else
+#define d1printf(...)
+#define _d1printf(...)
+#endif
+
+#define d0printf(...) printf("[ohci] " __VA_ARGS__)
+#define _d0printf(...) printf(__VA_ARGS__)
+
+
+#define OHC_USB_RESET 0x00000000
+#define OHC_USB_RESUME 0x00000040
+#define OHC_USB_OPERATIONAL 0x00000080
+#define OHC_USB_SUSPEND 0x000000C0
+
+#define OHC_CTRL_CBSR 0x00000003 //Verhältnis zwischen Control und Bulk
+ //(cbsr+1 zu 1)
+#define OHC_CTRL_PLE 0x00000004 //Periodische Transfers aktivieren
+#define OHC_CTRL_IE 0x00000008 //Isochronous-Transfers aktivieren
+#define OHC_CTRL_CLE 0x00000010 //Control-Transfers aktivieren
+#define OHC_CTRL_BLE 0x00000020 //Bulk-Transfers aktivieren
+#define OHC_CTRL_HCFS 0x000000C0 //Status des HCs
+#define OHC_CTRL_IR 0x00000100 //Wenn gesetzt, dann werden IRQs zum SMB
+ //geleitet
+#define OHC_CTRL_RWC 0x00000200 //Remote wakeup untersetützt
+#define OHC_CTRL_RW 0x00000400 //Remote wakeup aktivieren
+
+#define OHC_CMST_RESET 0x00000001 //Reset
+#define OHC_CMST_CLF 0x00000002 //Control list filled (muss gesetzt werden,
+ //wenn ein Eintrag zur Controlliste
+ //hinzugefügt wird)
+#define OHC_CMST_BLF 0x00000004 //Bulk list filled (muss gesetzt werden, wenn
+ //ein Eintrag zur Bulkliste hinzugefügt wird)
+#define OHC_CMST_OCR 0x00000008 //Ownership change request
+#define OHC_CMST_SOC 0x00030000 //Scheduling overrun count
+
+#define OHC_INT_SO 0x00000001 //Scheduling overrun
+#define OHC_INT_WDH 0x00000002 //Write back done head
+#define OHC_INT_SF 0x00000004 //Start of frame (wird bei SOF gesetzt)
+#define OHC_INT_RD 0x00000008 //Resume detected (wird bei einem von einem
+ //Gerät gesendeten Resume gesetzt)
+#define OHC_INT_UE 0x00000010 //Unrecoverable error (wird bei einem HC-
+ //Fehler gesetzt, der nichts mit USB zu tun
+ //hat)
+#define OHC_INT_FNO 0x00000020 //Frame number overflow (wird gesetzt, wenn
+ //die Framenummer grö�er als 32767 und
+ //umgebrochen wird)
+#define OHC_INT_RHSC 0x00000040 //Root hub status change (wird gesetzt, wenn
+ //sich irgendwas am Roothub geändert hat)
+#define OHC_INT_OC 0x40000000 //Ownership change
+#define OHC_INT_MIE 0x80000000 //(De-)Aktiviert Interrupts
+
+#define OHC_RHA_NDP 0x000000FF //Anzahl an Rootports (1 bis 15)
+#define OHC_RHA_PSM 0x00000100 //Gesetzt, wenn man die Stromzufuhr zu
+ //einzelnen Ports unabhängig setzen kann
+#define OHC_RHA_NPS 0x00000200 //Gelöscht, wenn man die Stromzufuhr zu
+ //einzelnen Ports unabhängig setzen kann
+#define OHC_RHA_DT 0x00000400 //Immer 0, zeigt so an, dass der Roothub kein
+ //Compound device ist.
+#define OHC_RHA_OCPM 0x00000800 //Gesetzt, wenn �berspannungen für jeden Port
+ //einzeln gemeldet werden
+#define OHC_RHA_NOCP 0x00001000 //Gesetzt, wenn keine Ã?berspannungen erkannt
+ //bzw. verhindert werden können
+#define OHC_RHA_POTPGT 0xFF000000 //Power on to power good time (potpgt * 2)
+
+#define OHC_RHS_LPS 0x00000001 //R: 0
+ //W: Strom abdrehen
+#define OHC_RHS_OCI 0x00000002 //R: Unspezifische Ã?berspannung
+#define OHC_RHS_DRWE 0x00008000 //R: Irgendwas mit Remote Wakeup Enable
+ //W: Das aktivieren
+#define OHC_RHS_LPSC 0x00010000 //R: 0
+ //W: Strom andrehen
+#define OHC_RHS_OCIC 0x00020000 //R: Bei Ã?nderungen von OCI gesetzt
+ //W: Feld löschen
+#define OHC_RHS_CRWE 0x80000000 //W: Remote Wakeup Enable deaktivieren
+
+#define OHC_RP_CCS 0x00000001 //R: Gerät angeschlossen
+ //W: Deaktiviert den Port
+#define OHC_RP_PES 0x00000002 //R: Port aktiviert
+ //W: Aktiviert den Port
+#define OHC_RP_PSS 0x00000004 //R: Port schläft
+ //W: Schläfert den Port ein
+#define OHC_RP_POCI 0x00000008 //R: Ã?berspannung
+ //W: Port aufwecken
+#define OHC_RP_PRS 0x00000010 //R: Reset läuft
+ //W: Reset treiben
+#define OHC_RP_PPS 0x00000100 //R: Strom an
+ //W: Strom andrehen
+#define OHC_RP_LSDA 0x00000200 //R: Low-Speed-Gerät
+ //W: Strom abdrehen
+#define OHC_RP_CSC 0x00010000 //R: Gerät an- oder abgezogen
+ //W: Bit löschen
+#define OHC_RP_PESC 0x00020000 //R: Port (de-)aktiviert
+ //W: Bit löschen
+#define OHC_RP_PSSC 0x00040000 //R: Port wurde geweckt
+ //W: Bit löschen
+#define OHC_RP_OCIC 0x00080000 //R: �berspannungsbit verändert
+ //W: Bit löschen
+#define OHC_RP_PRSC 0x00100000 //R: Reset beendet
+ //W: Bit löschen
+
+struct ohci_registers
+{
+ uint32_t hc_revision; //Revision
+ volatile uint32_t hc_control;
+ volatile uint32_t hc_command_status;
+ volatile uint32_t hc_interrupt_status;
+ volatile uint32_t hc_interrupt_enable;
+ volatile uint32_t hc_interrupt_disable;
+ uint32_t hc_hcca; //Adresse des HCCA
+ volatile uint32_t hc_period_current_ed; //Adresse des aktuellen
+ //Endpointdescriptors der
+ //periodischen Transfers
+ uint32_t hc_control_head_ed; //Adresse des ersten Endpointdescriptors der
+ //Control-Transfers
+ volatile uint32_t hc_control_current_ed; //Adresse des aktuellen
+ //Endpointdescriptors der Control-
+ //Transfers
+ uint32_t hc_bulk_head_ed; //Adresse des ersten Endpointdescriptors der
+ //Bulk-Transfers
+ volatile uint32_t hc_bulk_current_ed; //Adresse des aktuellen
+ //Endpointdescriptors der Bulk-
+ //Transfers
+ volatile uint32_t hc_done_head; //Adresse des zuletzt abgearbeiteten
+ //Transferdeskriptors, der der Done-Liste
+ //hinzugefügt wurde
+ uint32_t hc_fm_interval; //Gibt die Länge eines Frames und die maximale
+ //Paketgrö�e an
+ volatile uint32_t hc_fm_remaining; //Verbleibende Takte des aktuellen
+ //Frames
+ volatile uint32_t hc_fm_number; //Nummer des aktuellen Frames
+ uint32_t hc_periodic_start; //10% von HcFmInterval, wenn HcFmInterval
+ //diesen Wert erreicht, dann haben periodische
+ //Transfers Vorrang
+ uint32_t hc_ls_threshold; //Besser nicht ändern
+ uint32_t hc_rh_descriptor_a;
+ uint32_t hc_rh_descriptor_b;
+ volatile uint32_t hc_rh_status;
+ volatile uint32_t hc_rh_port_status[];
+} __attribute__((packed));
+
+struct ohci_legsup
+{
+ uint32_t hce_control;
+ uint32_t hce_input;
+ uint32_t hce_output;
+ uint32_t hce_status;
+} __attribute__((packed));
+
+struct ohci_hcca
+{
+ uint32_t interrupt_table[32]; //Zeiger zu Interrupt-EDs
+ uint16_t frame_number; //Die Nummer des aktuellen Frames
+ uint16_t pad; //Wird auf 0 gesetzt, wenn frame_number neu geschrieben wird
+ //(Ausrichten an DWord-Grenzen vermutlich)
+ uint32_t done_head;
+ uint8_t rsvd[116];
+} __attribute__((packed));
+
+struct ohci
+{
+ struct cdi_usb_hc cdidev;
+ struct cdi_pci_device *pcidev;
+
+ struct ohci_registers *memory;
+ struct ohci_legsup *legsup;
+ int root_ports;
+ struct ohci_hcca *hcca;
+
+ struct mempool *ed_pool;
+ struct mempool *transfer_pool;
+
+ cdi_list_t ed_list;
+};
+
+#define OHC_ED_DIR_TD 0 //Richtung im TD definiert
+#define OHC_ED_DIR_OUT 1
+#define OHC_ED_DIR_IN 2
+
+struct ohci_ed
+{
+ unsigned function : 7; //USB-Adresse des Geräts
+ unsigned endpoint : 4; //Nummer des Endpoints
+ unsigned direction : 2; //Richtung des Transfers
+ unsigned low_speed : 1;
+ unsigned skip : 1;
+ unsigned format : 1; //Bei Isochronous gesetzt
+ unsigned mps : 11; //Maximale Paketgrö�e
+ unsigned user : 5; //Für uns frei verfügbar
+ uint32_t td_queue_tail; //Letzter TD in der Warteschlange
+ volatile uint32_t td_queue_head; //Nächster TD in der Warteschlange
+ uint32_t next_ed; //Nächster ED
+} __attribute__((packed));
+
+struct ohci_ed_desc
+{
+ struct ohci_ed *virt;
+ uintptr_t phys;
+ int function;
+ int endpoint;
+ cdi_list_t transfers;
+ enum
+ {
+ USB_CONTROL,
+ USB_BULK
+ } type;
+} __attribute__((packed));
+
+#define OHC_TD_DIR_SETUP 0
+#define OHC_TD_DIR_OUT 1
+#define OHC_TD_DIR_IN 2
+
+struct ohci_td
+{
+ unsigned user : 18; //Für uns frei verfügbar
+ unsigned rounding : 1; //Wenn gesetzt, dann sind zu kleine Pakete nicht so
+ //schlimm
+ unsigned direction : 2; //Richtung/Typ des Transfers (nur gültig, wenn das
+ //"direction"-Feld im ED 00b oder 11b ist)
+ unsigned di : 3; //Gibt an, wie viele Frames der HC vor Auslösen eines IRQs
+ //warten soll
+ unsigned toggle : 2; //Datatoggle (00b oder 01b - Wert muss aus dem ED
+ //ermittelt werden, 10b = DATA0, 11b = DATA1)
+ volatile unsigned error : 2; //Anzahl der aufgetretenen Fehler - bei 11b
+ //wird der Status im "condition"-Feld
+ //gespeichert.
+ volatile unsigned condition : 4; //Status
+ volatile uint32_t current_buffer_pointer; //Pointer zu den Daten (bei 0
+ //wurden alle Daten übertragen)
+ uint32_t next_td; //Nächster TD
+ uint32_t buffer_end; //Letztes Datenbyte des Puffers
+} __attribute__((packed));
+
+struct ohci_td_desc
+{
+ struct ohci_td *virt;
+ uintptr_t phys;
+ struct ohci_ed_desc *endpoint;
+} __attribute__((packed));
+
+struct cdi_driver *init_ohcd(void);
+void ohci_init(struct cdi_device *cdi_hci);
+
+#endif
diff --git a/ohci/init.c b/ohci/init.c
new file mode 100644
index 0000000..a1ea5a5
--- /dev/null
+++ b/ohci/init.c
@@ -0,0 +1,241 @@
+/*****************************************************************************
+* Copyright (c) 2009 Max Reitz *
+* *
+* Permission is hereby granted, free of charge, to any person obtaining a *
+* copy of this software and associated documentation files (the "Software"), *
+* to deal in the Software without restriction, including without limitation *
+* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
+* and/or sell copies of the Software, and to permit persons to whom the *
+* Software is furnished to do so, subject to the following conditions: *
+* *
+* The above copyright notice and this permission notice shall be included in *
+* all copies or substantial portions of the Software. *
+* *
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
+* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
+* DEALINGS IN THE SOFTWARE. *
+*****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <cdi/io.h>
+#include <cdi/lists.h>
+#include <cdi/mempool.h>
+#include <cdi/misc.h>
+#include <cdi/pci.h>
+#include <cdi/usb-hcd.h>
+
+#include "ohci.h"
+#include "ohci-hcd.h"
+#include "ohci-init.h"
+#include "ohci-transfer.h"
+
+extern const struct ohci_functions ohci_functions;
+extern int init_ohci(void);
+
+#define DRIVER_NAME "ohcd"
+
+static struct cdi_usb_hcd driver = {
+ .drv = {
+ .type = CDI_USB_HCD,
+ .name = DRIVER_NAME,
+ .devices = NULL,
+ .init_device = &ohci_init,
+ .remove_device = NULL,
+ .init = &init_ohci,
+ .destroy = NULL
+ }
+};
+
+CDI_DRIVER(DRIVER_NAME, driver)
+
+void find_and_init_ohcis(void)
+{
+ struct ohci *hci;
+ char *name;
+ int ohci_counter = 0;
+ struct cdi_pci_device *dev;
+
+ cdi_usb_hcd_init(&driver);
+
+ cdi_list_t pci_devices = cdi_list_create();
+ cdi_pci_get_all_devices(pci_devices);
+ for (int i = 0; (dev = cdi_list_get(pci_devices, i)) != NULL; i++) {
+ if ((dev->class_id != 0x0C) || (dev->subclass_id != 0x03)
+ || (dev->interface_id != 0x10))
+ {
+ cdi_pci_device_destroy(dev);
+ } else {
+ hci = malloc(sizeof(struct ohci));
+ hci->cdidev.dev.type = CDI_USB_HCD;
+ name = malloc(7);
+ sprintf(name, "ohci%i", ohci_counter++);
+ hci->cdidev.dev.name = (const char *)name;
+ hci->cdidev.speed = CDI_USB_LOW_SPEED | CDI_USB_FULL_SPEED;
+ hci->pcidev = dev;
+ cdi_list_push(driver.drv.devices, hci);
+ }
+ }
+
+ cdi_list_destroy(pci_devices);
+
+ driver.find_devices = ohci_functions.find_devices;
+ driver.activate_device = ohci_functions.activate_device;
+ driver.send_packets = ohci_functions.send_packets;
+ driver.add_pipe = ohci_functions.add_pipe;
+}
+
+void ohci_init(struct cdi_device *dev)
+{
+ struct ohci *ohci = (struct ohci *)dev;
+ struct cdi_pci_resource *res;
+ int i;
+ uintptr_t phys_hcca;
+
+ ohci->memory = NULL;
+ for (i = 0; (res = cdi_list_get(ohci->pcidev->resources, i)) != NULL;
+ i++)
+ {
+ if (res->type == CDI_PCI_MEMORY) {
+ ohci->memory = cdi_alloc_phys_addr(res->length, res->start);
+ if (ohci->memory == NULL) {
+ d0printf("Wasn't able to allocate memory.\n");
+ return;
+ }
+ ohci->legsup = (void *)((uintptr_t)ohci->memory + 0x100);
+ break;
+ }
+ }
+ if (ohci->memory == NULL) {
+ d1printf("Memory not found!\n");
+ return;
+ }
+ d1printf("Memory @ 0x%08X\n", (uintptr_t)ohci->memory);
+ if ((ohci->memory->hc_revision & 0xFF) != 0x10) {
+ d0printf("This OHCI might be incompatible with this driver"
+ "(HCI %i.%i, HCD 1.0)\n", (ohci->memory->hc_revision & 0xF0) >> 4,
+ ohci->memory->hc_revision & 0xF);
+ }
+ if (cdi_alloc_phys_mem(sizeof(*ohci->hcca), (void **)&ohci->hcca,
+ (void **)&phys_hcca) == -1)
+ {
+ d0printf("Wasn't able to allocate HCCA.\n");
+ return;
+ }
+ memset(ohci->hcca, 0, sizeof(*ohci->hcca));
+
+ d1printf("IRQ: %i\n", ohci->pcidev->irq);
+ cdi_register_irq(ohci->pcidev->irq, &ohci_handler, dev);
+
+ ohci->ed_pool = mempool_create(64 * sizeof(struct ohci_ed),
+ sizeof(struct ohci_ed));
+ if (ohci->ed_pool == NULL) {
+ d0printf("Wasn't able to create ED memory pool!\n");
+ return;
+ }
+
+ ohci->transfer_pool = mempool_create(48 * (1024 + sizeof(struct ohci_td)),
+ 1024 + sizeof(struct ohci_td));
+ if (ohci->transfer_pool == NULL) {
+ d0printf("Wasn't able to create transfer memory pool!\n");
+ return;
+ }
+
+ ohci->memory->hc_interrupt_disable = OHC_INT_MIE;
+
+ if (ohci->memory->hc_control & OHC_CTRL_IR) {
+ d1printf("Kicking out SMM... ");
+ //Ã?nderung des "Besitzers" beantragen
+ ohci->memory->hc_command_status |= OHC_CMST_OCR;
+ for (i = 0; (ohci->memory->hc_control & OHC_CTRL_IR) && (i < 1000);
+ i++)
+ {
+ cdi_sleep_ms(1);
+ }
+ if (i < 100) {
+ _d1printf("Went fine.\n");
+ } else {
+ _d1printf("Idiot.\n");
+ ohci->memory->hc_control &= ~OHC_CTRL_IR;
+ }
+ } else if ((ohci->memory->hc_control & OHC_CTRL_CBSR) != OHC_USB_RESET) {
+ d1printf("BIOS active\n");
+ if ((ohci->memory->hc_control & OHC_CTRL_CBSR) != OHC_USB_OPERATIONAL)
+ {
+ d1printf("Activating RESUME...\n");
+ ohci->memory->hc_control =
+ (ohci->memory->hc_control & ~OHC_CTRL_CBSR) | OHC_USB_RESUME;
+ cdi_sleep_ms(10);
+ }
+ } else {
+ //Nix, weder BIOS noch SMM
+ cdi_sleep_ms(10); //Reset abwarten
+ }
+
+ if (ohci->legsup->hce_control & 1) {
+ d1printf("USB legacy support activated, but that won't last for"
+ "long...\n");
+ }
+ //Harhar, that's mine now!
+ ohci->legsup->hce_control = 0;
+
+ ohci->memory->hc_command_status |= OHC_CMST_RESET;
+ //Normalerweise sollte man den Wert von hc_fm_interval von vor dem Reset
+ //wiederherstellen, aber ich finde das Schwachsinn. Die Werte sind so in
+ //Ordnung, wie sie jetzt sind.
+
+ cdi_sleep_ms(3); //10 µs für den Reset und 2 ms für Resume
+ if ((ohci->memory->hc_control & OHC_CTRL_CBSR) == OHC_USB_SUSPEND) {
+ //Boah...
+ d1printf("Reset not finished yet...\n");
+ ohci->memory->hc_control =
+ (ohci->memory->hc_control & ~OHC_CTRL_CBSR) | OHC_USB_RESUME;
+ cdi_sleep_ms(10);
+ }
+
+ ohci->memory->hc_interrupt_disable = OHC_INT_MIE;
+
+ ohci->memory->hc_hcca = phys_hcca;
+ ohci->memory->hc_interrupt_status = 0xFFFFFFFF;
+ ohci->memory->hc_interrupt_enable =
+ OHC_INT_SO | //Scheduling overrun
+ OHC_INT_WDH | //Write back done head
+ OHC_INT_RD | //Resume detected
+ OHC_INT_UE | //Schwerer Fehler
+ OHC_INT_RHSC | //Root hub status change
+ OHC_INT_MIE;
+ //Eigentlich sollte man alle Transfers aktivieren. Aber wir wollen ja noch
+ //gar keine periodischen Transfers...
+ //Periodisches Zeug deaktivieren
+ ohci->memory->hc_control &= ~(OHC_CTRL_PLE | OHC_CTRL_IE);
+ //Control und Bulk aktivieren
+ ohci->memory->hc_control |= OHC_CTRL_CLE | OHC_CTRL_BLE;
+ //Merkwürdigerweise soll das jetzt nicht auf 10 %, sondern auf 90 % gesetzt
+ //werden. Aber das klingt total bescheuert, weil nicht erklärt wird, wann
+ //man es denn auf 10 % setzen soll. Deshalb machen wir das gleich.
+ ohci->memory->hc_periodic_start = 0x4B0;
+
+ d1printf("Activating HC.\n");
+
+ //DO IT, FAGGOT!
+ ohci->memory->hc_control =
+ (ohci->memory->hc_control & ~OHC_CTRL_CBSR) | OHC_USB_OPERATIONAL;
+
+ ohci->memory->hc_rh_status |= OHC_RHS_LPSC; //Strom andrehen
+ ohci->root_ports = ohci->memory->hc_rh_descriptor_a & OHC_RHA_NDP;
+ cdi_sleep_ms((ohci->memory->hc_rh_descriptor_a & OHC_RHA_POTPGT) >> 23);
+
+ d0printf("Found %i root ports.\n", ohci->root_ports);
+
+ for (i = 0; i < ohci->root_ports; i++) {
+ ohci->memory->hc_rh_port_status[i] |= OHC_RP_CCS; //Deaktivieren
+ }
+
+ ohci->ed_list = cdi_list_create();
+}
diff --git a/ohci/main.c b/ohci/main.c
new file mode 100644
index 0000000..4b6cd67
--- /dev/null
+++ b/ohci/main.c
@@ -0,0 +1,34 @@
+/*****************************************************************************
+* Copyright (c) 2009 Max Reitz *
+* *
+* Permission is hereby granted, free of charge, to any person obtaining a *
+* copy of this software and associated documentation files (the "Software"), *
+* to deal in the Software without restriction, including without limitation *
+* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
+* and/or sell copies of the Software, and to permit persons to whom the *
+* Software is furnished to do so, subject to the following conditions: *
+* *
+* The above copyright notice and this permission notice shall be included in *
+* all copies or substantial portions of the Software. *
+* *
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
+* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
+* DEALINGS IN THE SOFTWARE. *
+*****************************************************************************/
+
+#include <cdi/misc.h>
+
+#include "ohci-init.h"
+
+int init_ohci()
+{
+ cdi_init();
+
+ find_and_init_ohcis();
+
+ return 0;
+}
diff --git a/ohci/transfer.c b/ohci/transfer.c
new file mode 100644
index 0000000..24f7c67
--- /dev/null
+++ b/ohci/transfer.c
@@ -0,0 +1,85 @@
+/*****************************************************************************
+* Copyright (c) 2009 Max Reitz *
+* *
+* Permission is hereby granted, free of charge, to any person obtaining a *
+* copy of this software and associated documentation files (the "Software"), *
+* to deal in the Software without restriction, including without limitation *
+* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
+* and/or sell copies of the Software, and to permit persons to whom the *
+* Software is furnished to do so, subject to the following conditions: *
+* *
+* The above copyright notice and this permission notice shall be included in *
+* all copies or substantial portions of the Software. *
+* *
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
+* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
+* DEALINGS IN THE SOFTWARE. *
+*****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <cdi/io.h>
+#include <cdi/lists.h>
+#include <cdi/misc.h>
+
+#include "ohci.h"
+
+void ohci_handler(struct cdi_device *cdi_hci)
+{
+ struct ohci *ohci = (struct ohci *)cdi_hci;
+ struct ohci_ed_desc *edsc;
+ struct ohci_td_desc *tdsc;
+ uint32_t status, done = 0;
+ int i, j;
+ uintptr_t phys;
+
+ status = ohci->memory->hc_interrupt_status;
+ if (!status) {
+ return; //Wohl nicht für uns
+ }
+
+ if (status & OHC_INT_RHSC) {
+ done |= OHC_INT_RHSC;
+ }
+ if (status & OHC_INT_UE) {
+ d0printf("Fatal HC error.\n");
+ ohci->memory->hc_command_status |= OHC_CMST_RESET;
+ done |= OHC_INT_UE;
+ }
+ if (status & OHC_INT_SF) {
+ //Ã?hm... Na ja. Manchmal fragt man sich, ob sich der HC so einsam
+ //fühlt, dass er IRQs feuert, obwohl sie deaktiviert sind.
+ done |= OHC_INT_SF;
+ }
+ if (status & OHC_INT_WDH) {
+ //Paket gesendet
+ done |= OHC_INT_WDH;
+ phys = ohci->hcca->done_head;
+ for (i = 0; (edsc = cdi_list_get(ohci->ed_list, i)) != NULL; i++) {
+ for (j = 0; (tdsc = cdi_list_get(edsc->transfers, j)) != NULL; j++)
+ {
+ if (tdsc->phys == phys) {
+ //Das ist der fertige Transfer
+ cdi_list_remove(edsc->transfers, j);
+ free(tdsc);
+ break;
+ }
+ }
+ if (tdsc != NULL) {
+ //Gefunden
+ break;
+ }
+ }
+ }
+
+ if (status & ~done) {
+ d1printf("Non-handled interrupt: 0x%08X\n", status & ~done);
+ }
+
+ ohci->memory->hc_interrupt_status = status;
+}
--
1.6.4.2