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[cdi-devel] [PATCH v3 3/5] UHCI
From: Max Reitz <max@xxxxxxxxxx>
+ Added USB universal host controller driver
Signed-off-by: Max Reitz <max@xxxxxxxxxx>
Signed-off-by: Kevin Wolf <kevin@xxxxxxxxxx>
---
uhci/hcd.c | 215 ++++++++++++++++++++++++++++++++++++
uhci/include/uhci-hcd.h | 39 +++++++
uhci/include/uhci-init.h | 31 +++++
uhci/include/uhci-transfer.h | 30 +++++
uhci/include/uhci.h | 138 +++++++++++++++++++++++
uhci/init.c | 249 ++++++++++++++++++++++++++++++++++++++++++
uhci/main.c | 34 ++++++
uhci/transfer.c | 91 +++++++++++++++
8 files changed, 827 insertions(+), 0 deletions(-)
create mode 100644 uhci/hcd.c
create mode 100644 uhci/include/uhci-hcd.h
create mode 100644 uhci/include/uhci-init.h
create mode 100644 uhci/include/uhci-transfer.h
create mode 100644 uhci/include/uhci.h
create mode 100644 uhci/init.c
create mode 100644 uhci/main.c
create mode 100644 uhci/transfer.c
diff --git a/uhci/hcd.c b/uhci/hcd.c
new file mode 100644
index 0000000..51b0ec9
--- /dev/null
+++ b/uhci/hcd.c
@@ -0,0 +1,215 @@
+/*****************************************************************************
+* 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 "uhci.h"
+#include "uhci-hcd.h"
+
+extern cdi_list_t uhci_active_transfers;
+
+static void reset_device(struct cdi_usb_device *device);
+
+static void find_devices(struct cdi_usb_hc *device)
+{
+ struct uhci *uhci = (struct uhci *)device;
+ struct cdi_usb_device *dev;
+ int i;
+
+ d0printf("Scanning root ports\n");
+ cdi_outw(uhci->pbase + UHCI_USBCMD, USB_RUN);
+ for (i = 0; i < uhci->root_ports; i++) {
+ if (!(cdi_inw(uhci->pbase + UHCI_RPORTS + 2 * i) & RPORT_DEVICE)) {
+ continue;
+ }
+ dev = malloc(sizeof(struct cdi_usb_device));
+ dev->hc = device;
+ dev->id = 0;
+ dev->port = i;
+ dev->speed = (cdi_inw(uhci->pbase + UHCI_RPORTS + 2 * i) &
+ RPORT_LOSPD) ? CDI_USB_LOW_SPEED : CDI_USB_FULL_SPEED;
+ dev->hub = NULL;
+ dev->reset = &reset_device;
+ cdi_usb_device_init(dev);
+ }
+}
+
+static void activate_device(struct cdi_usb_device *device)
+{
+ struct uhci *uhci = (struct uhci *)device->hc;
+
+ if (device->hub != NULL) {
+ return;
+ }
+
+ d1printf("Activating device on port %i.\n", device->port);
+ cdi_outw(uhci->pbase + UHCI_RPORTS + 2 * device->port,
+ RPORT_ENABLE | RPORT_CSC);
+ cdi_sleep_ms(20);
+}
+
+static void reset_device(struct cdi_usb_device *device)
+{
+ struct uhci *uhci = (struct uhci *)device->hc;
+
+ if (device->hub != NULL) {
+ return;
+ }
+
+ d1printf("Resetting device on port %i.\n", device->port);
+ cdi_outw(uhci->pbase + UHCI_RPORTS + 2 * device->port,
+ RPORT_ENABLE | RPORT_RESET | RPORT_CSC);
+ cdi_sleep_ms(20);
+}
+
+static void add_pipe(struct cdi_usb_pipe *pipe)
+{
+ //Macht nix, weil das bei UHCI nicht nötig ist
+ pipe = NULL; //Aber GCC können wir trotzdem glücklich machen
+}
+
+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_packet(struct cdi_usb_packet *packet)
+{
+ struct cdi_usb_device *usbdev = packet->pipe->device;
+ struct uhci *uhci = (struct uhci *)usbdev->hc;
+ struct uhci_td td;
+ struct transfer addr;
+ int timeout, frame;
+
+ void *buf;
+ uintptr_t pbuf;
+
+ memset(&td, 0, sizeof(td));
+ td.next = 1; //Invalid
+ td.active = 1;
+ td.ioc = 1;
+ if (packet->use_toggle == TOGGLE_0) {
+ packet->pipe->data_toggle = 0;
+ } else if (packet->use_toggle == TOGGLE_1) {
+ packet->pipe->data_toggle = 1;
+ }
+ td.data_toggle = packet->pipe->data_toggle;
+ packet->pipe->data_toggle ^= 1;
+ td.low_speed = !!(usbdev->speed == CDI_USB_LOW_SPEED);
+ td.errors = 1;
+ td.pid = packet->type;
+ td.device = usbdev->id;
+ td.endpoint = packet->pipe->endpoint->endpoint_address & 0x07;
+ td.maxlen = packet->length ? packet->length - 1 : 0x7FF;
+ while (_tsl(&locked));
+ frame = (cdi_inw(uhci->pbase + UHCI_FRNUM) + 5) & 0x3FF;
+ while (!(uhci->queue_heads[frame].transfer & 1)) {
+ frame++;
+ frame &= 0x3FF;
+ }
+
+ if (cdi_mempool_get(uhci->buffers, &buf, &pbuf) < 0) {
+ return CDI_USB_TRIVIAL_ERROR;
+ }
+
+ addr.virt = buf;
+ addr.phys = pbuf;
+ addr.error = 0xFFFF;
+
+ buf = (void *)((uintptr_t)buf + sizeof(td));
+ pbuf += sizeof(td);
+
+ if (!packet->length) {
+ td.buffer = 0;
+ } else {
+ td.buffer = pbuf;
+ if (packet->type != CDI_USB_PACKET_IN) {
+ memcpy(buf, packet->data, packet->length);
+ }
+ }
+
+ memcpy(addr.virt, &td, sizeof(td));
+
+
+ if (uhci_active_transfers == NULL) {
+ uhci_active_transfers = cdi_list_create();
+ }
+ uhci->queue_heads[frame].transfer = addr.phys;
+ cdi_list_push(uhci_active_transfers, &addr);
+
+ locked = 0;
+ for (timeout = 0; !(uhci->queue_heads[frame].transfer & 1) &&
+ (timeout < 1000); timeout++)
+ {
+ cdi_sleep_ms(1);
+ }
+ while ((timeout < 1000) && (addr.error == 0xFFFF)) {
+#ifndef CDI_STANDALONE
+ __asm__ __volatile__ ("hlt");
+#endif
+ }
+ if (packet->type == CDI_USB_PACKET_IN) {
+ memcpy(packet->data, buf, packet->length);
+ }
+ if (addr.error == 0xFFFF) {
+ addr.error = CDI_USB_TIMEOUT;
+ }
+
+ cdi_mempool_put(uhci->buffers, addr.virt);
+
+ return addr.error;
+}
+
+static cdi_usb_status_t do_packets(struct cdi_usb_packet *packets,
+ size_t num_packets)
+{
+ size_t i;
+ cdi_usb_status_t cond = CDI_USB_NO_ERROR;
+
+ //TODO
+ for (i = 0; (i < num_packets) && !cond; i++) {
+ packets[i].condition = do_packet(&packets[i]);
+ cond |= packets[i].condition;
+ }
+
+ return cond;
+}
+
+
+const struct uhci_functions uhci_functions = {
+ .find_devices = &find_devices,
+ .activate_device = &activate_device,
+ .send_packets = &do_packets,
+ .add_pipe = &add_pipe
+};
diff --git a/uhci/include/uhci-hcd.h b/uhci/include/uhci-hcd.h
new file mode 100644
index 0000000..46e4093
--- /dev/null
+++ b/uhci/include/uhci-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 uhci_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 uhci_find_devices(struct cdi_usb_hc *device);
+
+#endif
diff --git a/uhci/include/uhci-init.h b/uhci/include/uhci-init.h
new file mode 100644
index 0000000..7b357bc
--- /dev/null
+++ b/uhci/include/uhci-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 UHCI_INIT_H
+#define UHCI_INIT_H
+
+#include "uhci.h"
+
+void find_and_init_uhcis(void);
+void uhci_init(struct cdi_device *dev);
+
+#endif
diff --git a/uhci/include/uhci-transfer.h b/uhci/include/uhci-transfer.h
new file mode 100644
index 0000000..53b46b0
--- /dev/null
+++ b/uhci/include/uhci-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 UHCI_TRANSFER_H
+#define UHCI_TRANSFER_H
+
+#include <cdi/misc.h>
+
+void uhci_handler(struct cdi_device *cdi_hci);
+
+#endif
diff --git a/uhci/include/uhci.h b/uhci/include/uhci.h
new file mode 100644
index 0000000..c9b3b05
--- /dev/null
+++ b/uhci/include/uhci.h
@@ -0,0 +1,138 @@
+/*****************************************************************************
+* 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_H
+#define UHCI_H
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include <cdi/mempool.h>
+#include <cdi/misc.h>
+#include <cdi/pci.h>
+#include <cdi/usb-hcd.h>
+
+
+//#define DEBUG
+
+#ifdef DEBUG
+#define d1printf(...) printf("[uhci] " __VA_ARGS__)
+#define _d1printf(...) printf(__VA_ARGS__)
+#else
+#define d1printf(...)
+#define _d1printf(...)
+#endif
+
+#define d0printf(...) printf("[uhci] " __VA_ARGS__)
+#define _d0printf(...) printf(__VA_ARGS__)
+
+
+#define UHCI_USBCMD 0x00 //w
+#define UHCI_USBSTS 0x02 //w
+#define UHCI_USBINTR 0x04 //w
+#define UHCI_FRNUM 0x06 //w
+#define UHCI_FRBASEADD 0x08 //l
+#define UHCI_SOFMOD 0x0C //b
+#define UHCI_RPORTS 0x10
+#define UHCI_PORTSC1 0x10 //w
+#define UHCI_PORTSC2 0x12 //w
+
+#define MAXP 0x0080
+#define CONFIGURE 0x0040
+#define GLOB_SUSP_MODE 0x0008
+#define GRESET 0x0004
+#define HCRESET 0x0002
+#define USB_RUN 0x0001
+
+#define RPORT_RESET 0x0200
+#define RPORT_LOSPD 0x0100 //Low speed device attached
+#define RPORT_ENABLE 0x0004
+#define RPORT_CSC 0x0002 //Connect status change
+#define RPORT_DEVICE 0x0001
+
+//Legacy support
+#define UHCI_PCI_LEGSUP 0xC0 //w
+
+#define UHCI_LEGSUP_STATUS 0x8F00 //Statusbits, die mittels schreiben einer 1
+ //gelöscht werden
+#define UHCI_LEGSUP_NO_CHG 0x5040 //Bits, die nicht verändert werden können
+ //(RO bzw. reserviert)
+#define UHCI_LEGSUP_PIRQ 0x2000 //Interrupt wird als PCI-IRQ ausgeführt
+
+
+struct uhci_qh {
+ volatile uint32_t next;
+ volatile uint32_t transfer;
+ uint32_t align[2]; //Fürs korrekte Alignment (an 16 Bytes)
+} __attribute__((packed));
+
+struct uhci_td {
+ volatile uint32_t next;
+
+ unsigned trans_len : 11;
+ unsigned rsvd0 : 6;
+ unsigned bitstuff_err : 1;
+ unsigned crc_time_err : 1;
+ unsigned nak : 1;
+ unsigned babble : 1;
+ unsigned buf_err : 1;
+ unsigned stalled_err : 1;
+ unsigned active : 1;
+ unsigned ioc : 1;
+ unsigned isochronous : 1;
+ unsigned low_speed : 1;
+ unsigned errors : 2;
+ unsigned spd : 1;
+ unsigned rsvd1 : 2;
+
+ unsigned pid : 8;
+ unsigned device : 7;
+ unsigned endpoint : 4;
+ unsigned data_toggle : 1;
+ unsigned rsvd2 : 1;
+ unsigned maxlen : 11;
+
+ uint32_t buffer;
+
+ uint32_t user[4];
+} __attribute__((packed));
+
+struct transfer {
+ void *virt;
+ uintptr_t phys;
+ volatile int error;
+};
+
+struct uhci {
+ struct cdi_usb_hc cdidev;
+ struct cdi_pci_device *pcidev;
+ int pbase;
+ uintptr_t phys_frame_list;
+ uint32_t *frame_list;
+ int root_ports;
+ struct uhci_qh *queue_heads;
+ struct uhci_qh *phys_queue_heads;
+
+ struct cdi_mempool *buffers;
+};
+
+#endif
diff --git a/uhci/init.c b/uhci/init.c
new file mode 100644
index 0000000..9d08cde
--- /dev/null
+++ b/uhci/init.c
@@ -0,0 +1,249 @@
+/*****************************************************************************
+* 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/mempool.h>
+#include <cdi/misc.h>
+#include <cdi/pci.h>
+#include <cdi/usb-hcd.h>
+
+#include "uhci.h"
+#include "uhci-hcd.h"
+#include "uhci-init.h"
+#include "uhci-transfer.h"
+
+extern const struct uhci_functions uhci_functions;
+extern int init_uhci(void);
+
+#define DRIVER_NAME "uhcd"
+
+static struct cdi_usb_hcd driver = {
+ .drv = {
+ .type = CDI_USB_HCD,
+ .name = DRIVER_NAME,
+ .devices = NULL,
+ .init_device = &uhci_init,
+ .remove_device = NULL,
+ .init = &init_uhci,
+ .destroy = NULL
+ }
+};
+
+CDI_DRIVER(DRIVER_NAME, driver)
+
+void find_and_init_uhcis(void)
+{
+ struct uhci *hci;
+ char *name;
+ int uhci_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 != 0x00))
+ {
+ cdi_pci_device_destroy(dev);
+ } else {
+ hci = malloc(sizeof(struct uhci));
+ hci->cdidev.dev.type = CDI_USB_HCD;
+ name = malloc(7);
+ sprintf(name, "uhci%i", uhci_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 = uhci_functions.find_devices;
+ driver.activate_device = uhci_functions.activate_device;
+ driver.send_packets = uhci_functions.send_packets;
+ driver.add_pipe = uhci_functions.add_pipe;
+}
+
+void uhci_init(struct cdi_device *dev)
+{
+ struct uhci *uhci = (struct uhci *)dev;
+ struct cdi_pci_resource *res;
+ int size = 0, request_size, cmd, intr, i;
+#ifdef CDI_PCI_DIRECT_ACCESS
+ int legsup;
+#endif
+
+ d0printf("Trying to init %s at %02x:%02x.%02x...\n", uhci->cdidev.dev.name,
+ uhci->pcidev->bus, uhci->pcidev->dev, uhci->pcidev->function);
+
+ uhci->pbase = 0;
+ for (i = 0; (res = cdi_list_get(uhci->pcidev->resources, i)) != NULL; i++)
+ {
+ if (res->type == CDI_PCI_IOPORTS) {
+ size = res->length ? res->length : 0x14;
+ if (cdi_ioports_alloc(res->start, size) == -1) {
+ d0printf("Cannot allocate I/O ports.\n");
+ return;
+ }
+ uhci->pbase = res->start;
+ break;
+ }
+ }
+ if (!uhci->pbase) {
+ d0printf("No I/O space found.\n");
+ return;
+ }
+ request_size =
+ // Maximale Paketlänge (Full Speed) ist 1023, Alignment au�erdem
+ 1024 +
+ // Transferdeskriptor
+ sizeof(struct uhci_td);
+
+ uhci->buffers = cdi_mempool_create(8192, request_size);
+ if (uhci->buffers == NULL) {
+ d0printf("Cannot create mempool.\n");
+ return;
+ }
+
+ if (cdi_alloc_phys_mem(sizeof(*uhci->queue_heads) * 1024,
+ (void **)&uhci->queue_heads, (void **)&uhci->phys_queue_heads) == -1)
+ {
+ d0printf("Cannot allocate QH memory.\n");
+ return;
+ }
+
+ if (cdi_alloc_phys_mem(4096, (void **)&uhci->frame_list,
+ (void **)&uhci->phys_frame_list) == -1)
+ {
+ d0printf("Cannot allocate frame list.\n");
+ return;
+ }
+
+#ifdef CDI_PCI_DIRECT_ACCESS
+ cdi_pci_config_writew(uhci->pcidev, 4, 0x05);
+#endif
+
+ cdi_register_irq(uhci->pcidev->irq, &uhci_handler, dev);
+ uhci->root_ports = (size - 0x10) >> 1;
+ //Erstmal testen, wie viele wir genau haben...
+ for (i = 2; i < uhci->root_ports; i++) {
+ if (!(cdi_inw(uhci->pbase + UHCI_RPORTS + i * 2) & 0x0080) ||
+ (cdi_inw(uhci->pbase + UHCI_RPORTS + i * 2) == 0xFFFF))
+ {
+ uhci->root_ports = i;
+ break;
+ }
+ }
+ //Mehr als sieben Rootports, klingt lustig
+ if (uhci->root_ports > 7) {
+ uhci->root_ports = 2;
+ }
+
+ d1printf("I/O 0x%04X (%i ports), IRQ %i\n", uhci->pbase, uhci->root_ports,
+ uhci->pcidev->irq);
+
+#ifdef CDI_PCI_DIRECT_ACCESS
+ legsup = cdi_pci_config_readw(uhci->pcidev, UHCI_PCI_LEGSUP);
+#endif
+ cmd = cdi_inw(uhci->pbase + UHCI_USBCMD);
+ intr = cdi_inw(uhci->pbase + UHCI_USBINTR);
+
+#ifdef CDI_PCI_DIRECT_ACCESS
+ //Wenn der HC läuft, das Configurebit gesetzt ist, der nicht runtergefahren
+ //ist oder dieses Interrupt-enable-Bit gesetzt ist, dann war wohl schon
+ //jemand dran.
+ //(oder wenn der Legacy Support aktiviert ist, das heiÃ?t, wenn in LEGSUP
+ //irgendein Bit gesetzt ist, dass nicht RO/reserviert oder ein Statusbit
+ //ist)
+ if ((legsup & ~(UHCI_LEGSUP_STATUS | UHCI_LEGSUP_NO_CHG)) ||
+ (cmd & USB_RUN) || !(cmd & CONFIGURE) || !(cmd & GLOB_SUSP_MODE) ||
+ (intr & 0x0002))
+ {
+ //Na, wer hat denn da am HC rumgefummelt. Bööööses BIOS. Oder SMM. Oder
+ //wer auch immer.
+ //Alle LEGSUP-Statusbits löschen
+ cdi_pci_config_writew(uhci->pcidev, UHCI_PCI_LEGSUP,
+ UHCI_LEGSUP_STATUS);
+#endif
+ //Resetten
+ cdi_outw(uhci->pbase + UHCI_USBCMD, HCRESET);
+ //Warten, bis der Reset beendet ist
+ for (i = 0; (cdi_inw(uhci->pbase + UHCI_USBCMD) & HCRESET) &&
+ (i < 50); i++)
+ {
+ cdi_sleep_ms(10);
+ }
+ if (i == 50) {
+ d1printf("Reset not finished...\n");
+ }
+
+ //Interrupts erstmal deaktivieren
+ cdi_outw(uhci->pbase + UHCI_USBINTR, 0);
+ //Den gesamten HC ebenso
+ cdi_outw(uhci->pbase + UHCI_USBCMD, 0);
+
+ //Alle Ports "runterfahren"
+ for (int port = 0; port < uhci->root_ports; port++) {
+ cdi_outw(uhci->pbase + UHCI_RPORTS + (port * 2), 0);
+ }
+#ifdef CDI_PCI_DIRECT_ACCESS
+ }
+#endif
+
+ for (i = 0; i < 1024; i++) {
+ uhci->queue_heads[i].next = 1; //Invalid
+ uhci->queue_heads[i].transfer = 1; //Invalid
+ }
+ for (i = 0; i < 1024; i++) {
+ uhci->frame_list[i] = (uintptr_t)&uhci->phys_queue_heads[i] | 2;
+ }
+
+ //Standardwert, jede Millisekunde ein Frame
+ cdi_outb(uhci->pbase + UHCI_SOFMOD, 0x40);
+ //Unsere Frameliste eintragen
+ cdi_outl(uhci->pbase + UHCI_FRBASEADD, uhci->phys_frame_list);
+ //Frame zurücksetzen
+ cdi_outw(uhci->pbase + UHCI_FRNUM, 0);
+#ifdef CDI_PCI_DIRECT_ACCESS
+ //Hier setzen wir das PIRQ-Bit und deaktivieren sämtlichen Legacy Support.
+ cdi_pci_config_writew(uhci->pcidev, UHCI_PCI_LEGSUP, UHCI_LEGSUP_PIRQ);
+#else
+ d0printf("Failed to deactivate USB legacy support.\n");
+#endif
+
+ //HC starten
+ cdi_outw(uhci->pbase + UHCI_USBCMD, USB_RUN | CONFIGURE | MAXP);
+ //Alle Interrupts aktivieren
+ cdi_outw(uhci->pbase + UHCI_USBINTR, 0xF);
+
+ //Connect status change löschen
+ for (i = 0; i < uhci->root_ports; i++) {
+ cdi_outw(uhci->pbase + UHCI_RPORTS + i * 2, RPORT_CSC);
+ }
+}
diff --git a/uhci/main.c b/uhci/main.c
new file mode 100644
index 0000000..8c5fb07
--- /dev/null
+++ b/uhci/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 "uhci-init.h"
+
+int init_uhci()
+{
+ cdi_init();
+
+ find_and_init_uhcis();
+
+ return 0;
+}
diff --git a/uhci/transfer.c b/uhci/transfer.c
new file mode 100644
index 0000000..33c60bf
--- /dev/null
+++ b/uhci/transfer.c
@@ -0,0 +1,91 @@
+/*****************************************************************************
+* 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 <cdi/io.h>
+#include <cdi/lists.h>
+#include <cdi/misc.h>
+
+#include "uhci.h"
+
+cdi_list_t uhci_active_transfers = NULL;
+
+void uhci_handler(struct cdi_device *cdi_hci)
+{
+ struct uhci *uhci = (struct uhci *)cdi_hci;
+ int status = cdi_inw(uhci->pbase + UHCI_USBSTS), i;
+ struct transfer *addr;
+ struct uhci_td *td;
+
+ if (!status) {
+ //Also, von hier kommt der IRQ nicht.
+ return;
+ }
+ //Ist Bit 0 gesetzt, dann ist das ein normaler IOC (Interrupt on
+ //completion), bei Bit 1 ist ein Fehler aufgetreten, aber das werden wir ja
+ //unten sehen.
+ if (status & ~0x0003) {
+ d1printf("Unerwarteter IRQ 0x%04X von %s\n", status, cdi_hci->name);
+ }
+ if (status & 0x10) {
+ d0printf("SCHWERWIEGENDER FEHLER - HC WIRD ANGEHALTEN\n");
+ cdi_outw(uhci->pbase + UHCI_USBCMD, MAXP | HCRESET); //FU!
+ } else {
+ for (i = 0; (addr = cdi_list_get(uhci_active_transfers, i)) != NULL;
+ i++)
+ {
+ td = addr->virt;
+ if (td->active) {
+ continue;
+ }
+ addr->error = CDI_USB_NO_ERROR;
+ cdi_list_remove(uhci_active_transfers, i--);
+ if (td->stalled_err) {
+ d0printf("ENDPOINT STALLED\n");
+ addr->error |= CDI_USB_STALLED;
+ }
+ if (td->buf_err) {
+ d1printf("Pufferüberlauf oder Underrun\n");
+ addr->error |= CDI_USB_BUFFER_ERROR;
+ }
+ if (td->babble) {
+ d1printf("Da war ein Gerät wohl sehr gesprächig: Babble.\n");
+ addr->error |= CDI_USB_BABBLE;
+ }
+ if (td->nak) {
+ d1printf("NAK empfangen\n");
+ addr->error |= CDI_USB_NAK;
+ }
+ if (td->crc_time_err) {
+ d1printf("CRC-Fehler oder Timeout\n");
+ addr->error |= CDI_USB_CRC | CDI_USB_TIMEOUT;
+ }
+ if (td->bitstuff_err) {
+ d1printf("Bitstufffehler\n");
+ addr->error |= CDI_USB_BITSTUFF;
+ }
+ //TODO: free(td) - dazu wäre eine CDI-Funktion nützlich
+ }
+ }
+ cdi_outw(uhci->pbase + UHCI_USBSTS, status);
+}
--
1.6.0.2