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 "hw/sysbus.h"
  25 #include "sysemu/dma.h"
  26 #include "hw/usb.h"
  27 #include "qom/object.h"
  28
  29 /* Number of Downstream Ports on the root hub: */
  30 #define OHCI_MAX_PORTS 15
  31
  32 typedef struct OHCIPort {
  33     USBPort port;
  34     uint32_t ctrl;
  35 } OHCIPort;
  36
  37 typedef struct OHCIState OHCIState;
  38
  39 struct OHCIState {
  40     USBBus bus;
  41     qemu_irq irq;
  42     MemoryRegion mem;
  43     AddressSpace *as;
  44     uint32_t num_ports;
  45     const char *name;
  46
  47     QEMUTimer *eof_timer;
  48     int64_t sof_time;
  49
  50     /* OHCI state */
  51     /* Control partition */
  52     uint32_t ctl, status;
  53     uint32_t intr_status;
  54     uint32_t intr;
  55
  56     /* memory pointer partition */
  57     uint32_t hcca;
  58     uint32_t ctrl_head, ctrl_cur;
  59     uint32_t bulk_head, bulk_cur;
  60     uint32_t per_cur;
  61     uint32_t done;
  62     int32_t done_count;
  63
  64     /* Frame counter partition */
  65     uint16_t fsmps;
  66     uint8_t fit;
  67     uint16_t fi;
  68     uint8_t frt;
  69     uint16_t frame_number;
  70     uint16_t padding;
  71     uint32_t pstart;
  72     uint32_t lst;
  73
  74     /* Root Hub partition */
  75     uint32_t rhdesc_a, rhdesc_b;
  76     uint32_t rhstatus;
  77     OHCIPort rhport[OHCI_MAX_PORTS];
  78
  79     /* PXA27x Non-OHCI events */
  80     uint32_t hstatus;
  81     uint32_t hmask;
  82     uint32_t hreset;
  83     uint32_t htest;
  84
  85     /* SM501 local memory offset */
  86     dma_addr_t localmem_base;
  87
  88     /* Active packets.  */
  89     uint32_t old_ctl;
  90     USBPacket usb_packet;
  91     uint8_t usb_buf[8192];
  92     uint32_t async_td;
  93     bool async_complete;
  94
  95     void (*ohci_die)(OHCIState *ohci);
  96 };
  97
  98 #define TYPE_SYSBUS_OHCI "sysbus-ohci"
  99 OBJECT_DECLARE_SIMPLE_TYPE(OHCISysBusState, SYSBUS_OHCI)
 100
 101 struct OHCISysBusState {
 102     /*< private >*/
 103     SysBusDevice parent_obj;
 104     /*< public >*/
 105
 106     OHCIState ohci;
 107     char *masterbus;
 108     uint32_t num_ports;
 109     uint32_t firstport;
 110     dma_addr_t dma_offset;
 111 };
 112
 113 extern const VMStateDescription vmstate_ohci_state;
 114
 115 void usb_ohci_init(OHCIState *ohci, DeviceState *dev, uint32_t num_ports,
 116                    dma_addr_t localmem_base, char *masterbus,
 117                    uint32_t firstport, AddressSpace *as,
 118                    void (*ohci_die_fn)(OHCIState *), Error **errp);
 119 void ohci_bus_stop(OHCIState *ohci);
 120 void ohci_stop_endpoints(OHCIState *ohci);
 121 void ohci_hard_reset(OHCIState *ohci);
 122 void ohci_sysbus_die(struct OHCIState *ohci);
 123
 124 #endif