hw/spapr_vio.h

   1 #ifndef _HW_SPAPR_VIO_H
   2 #define _HW_SPAPR_VIO_H
   3 /*
   4  * QEMU sPAPR VIO bus definitions
   5  *
   6  * Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au>
   7  * Based on the s390 virtio bus definitions:
   8  * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 typedef struct VIOsPAPRDevice {
  25     DeviceState qdev;
  26     uint32_t reg;
  27     qemu_irq qirq;
  28     uint32_t vio_irq_num;
  29     target_ulong signal_state;
  30 } VIOsPAPRDevice;
  31
  32 typedef struct VIOsPAPRBus {
  33     BusState bus;
  34 } VIOsPAPRBus;
  35
  36 typedef struct {
  37     DeviceInfo qdev;
  38     const char *dt_name, *dt_type, *dt_compatible;
  39     target_ulong signal_mask;
  40     int (*init)(VIOsPAPRDevice *dev);
  41     void (*hcalls)(VIOsPAPRBus *bus);
  42     int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
  43 } VIOsPAPRDeviceInfo;
  44
  45 extern VIOsPAPRBus *spapr_vio_bus_init(void);
  46 extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
  47 extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info);
  48 extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
  49
  50 extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
  51
  52 void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
  53 void spapr_vty_create(VIOsPAPRBus *bus,
  54                       uint32_t reg, CharDriverState *chardev);
  55
  56 #endif /* _HW_SPAPR_VIO_H */