hw/usb/hcd-ohci.h

   1 /*
   2  * QEMU USB OHCI Emulation
   3  * Copyright (c) 2004 Gianni Tedesco
   4  * Copyright (c) 2006 CodeSourcery
   5  * Copyright (c) 2006 Openedhand Ltd.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef HCD_OHCI_H
  22 #define HCD_OHCI_H
  23
  24 #include "sysemu/dma.h"
  25
  26 /* Number of Downstream Ports on the root hub: */
  27 #define OHCI_MAX_PORTS 15
  28
  29 typedef struct OHCIPort {
  30     USBPort port;
  31     uint32_t ctrl;
  32 } OHCIPort;
  33
  34 typedef struct OHCIState {
  35     USBBus bus;
  36     qemu_irq irq;
  37     MemoryRegion mem;
  38     AddressSpace *as;
  39     uint32_t num_ports;
  40     const char *name;
  41
  42     QEMUTimer *eof_timer;
  43     int64_t sof_time;
  44
  45     /* OHCI state */
  46     /* Control partition */
  47     uint32_t ctl, status;
  48     uint32_t intr_status;
  49     uint32_t intr;
  50
  51     /* memory pointer partition */
  52     uint32_t hcca;
  53     uint32_t ctrl_head, ctrl_cur;
  54     uint32_t bulk_head, bulk_cur;
  55     uint32_t per_cur;
  56     uint32_t done;
  57     int32_t done_count;
  58
  59     /* Frame counter partition */
  60     uint16_t fsmps;
  61     uint8_t fit;
  62     uint16_t fi;
  63     uint8_t frt;
  64     uint16_t frame_number;
  65     uint16_t padding;
  66     uint32_t pstart;
  67     uint32_t lst;
  68
  69     /* Root Hub partition */
  70     uint32_t rhdesc_a, rhdesc_b;
  71     uint32_t rhstatus;
  72     OHCIPort rhport[OHCI_MAX_PORTS];
  73
  74     /* PXA27x Non-OHCI events */
  75     uint32_t hstatus;
  76     uint32_t hmask;
  77     uint32_t hreset;
  78     uint32_t htest;
  79
  80     /* SM501 local memory offset */
  81     dma_addr_t localmem_base;
  82
  83     /* Active packets.  */
  84     uint32_t old_ctl;
  85     USBPacket usb_packet;
  86     uint8_t usb_buf[8192];
  87     uint32_t async_td;
  88     bool async_complete;
  89
  90     void (*ohci_die)(struct OHCIState *ohci);
  91 } OHCIState;
  92
  93 extern const VMStateDescription vmstate_ohci_state;
  94
  95 void usb_ohci_init(OHCIState *ohci, DeviceState *dev, uint32_t num_ports,
  96                    dma_addr_t localmem_base, char *masterbus,
  97                    uint32_t firstport, AddressSpace *as,
  98                    void (*ohci_die_fn)(struct OHCIState *), Error **errp);
  99 void ohci_bus_stop(OHCIState *ohci);
 100 void ohci_stop_endpoints(OHCIState *ohci);
 101 void ohci_hard_reset(OHCIState *ohci);
 102 void ohci_sysbus_die(struct OHCIState *ohci);
 103
 104 #endif