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 #include "hw/usb.h"
  26
  27 /* Number of Downstream Ports on the root hub: */
  28 #define OHCI_MAX_PORTS 15
  29
  30 typedef struct OHCIPort {
  31     USBPort port;
  32     uint32_t ctrl;
  33 } OHCIPort;
  34
  35 typedef struct OHCIState {
  36     USBBus bus;
  37     qemu_irq irq;
  38     MemoryRegion mem;
  39     AddressSpace *as;
  40     uint32_t num_ports;
  41     const char *name;
  42
  43     QEMUTimer *eof_timer;
  44     int64_t sof_time;
  45
  46     /* OHCI state */
  47     /* Control partition */
  48     uint32_t ctl, status;
  49     uint32_t intr_status;
  50     uint32_t intr;
  51
  52     /* memory pointer partition */
  53     uint32_t hcca;
  54     uint32_t ctrl_head, ctrl_cur;
  55     uint32_t bulk_head, bulk_cur;
  56     uint32_t per_cur;
  57     uint32_t done;
  58     int32_t done_count;
  59
  60     /* Frame counter partition */
  61     uint16_t fsmps;
  62     uint8_t fit;
  63     uint16_t fi;
  64     uint8_t frt;
  65     uint16_t frame_number;
  66     uint16_t padding;
  67     uint32_t pstart;
  68     uint32_t lst;
  69
  70     /* Root Hub partition */
  71     uint32_t rhdesc_a, rhdesc_b;
  72     uint32_t rhstatus;
  73     OHCIPort rhport[OHCI_MAX_PORTS];
  74
  75     /* PXA27x Non-OHCI events */
  76     uint32_t hstatus;
  77     uint32_t hmask;
  78     uint32_t hreset;
  79     uint32_t htest;
  80
  81     /* SM501 local memory offset */
  82     dma_addr_t localmem_base;
  83
  84     /* Active packets.  */
  85     uint32_t old_ctl;
  86     USBPacket usb_packet;
  87     uint8_t usb_buf[8192];
  88     uint32_t async_td;
  89     bool async_complete;
  90
  91     void (*ohci_die)(struct OHCIState *ohci);
  92 } OHCIState;
  93
  94 #define TYPE_SYSBUS_OHCI "sysbus-ohci"
  95 #define SYSBUS_OHCI(obj) OBJECT_CHECK(OHCISysBusState, (obj), TYPE_SYSBUS_OHCI)
  96
  97 typedef struct {
  98     /*< private >*/
  99     SysBusDevice parent_obj;
 100     /*< public >*/
 101
 102     OHCIState ohci;
 103     char *masterbus;
 104     uint32_t num_ports;
 105     uint32_t firstport;
 106     dma_addr_t dma_offset;
 107 } OHCISysBusState;
 108
 109 extern const VMStateDescription vmstate_ohci_state;
 110
 111 void usb_ohci_init(OHCIState *ohci, DeviceState *dev, uint32_t num_ports,
 112                    dma_addr_t localmem_base, char *masterbus,
 113                    uint32_t firstport, AddressSpace *as,
 114                    void (*ohci_die_fn)(struct OHCIState *), Error **errp);
 115 void ohci_bus_stop(OHCIState *ohci);
 116 void ohci_stop_endpoints(OHCIState *ohci);
 117 void ohci_hard_reset(OHCIState *ohci);
 118 void ohci_sysbus_die(struct OHCIState *ohci);
 119
 120 #endif