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