LXR qemu/hw/grlib.h

   1/*
   2 * QEMU GRLIB Components
   3 *
   4 * Copyright (c) 2010-2011 AdaCore
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a copy
   7 * of this software and associated documentation files (the "Software"), to deal
   8 * in the Software without restriction, including without limitation the rights
   9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 * copies of the Software, and to permit persons to whom the Software is
  11 * furnished to do so, subject to the following conditions:
  12 *
  13 * The above copyright notice and this permission notice shall be included in
  14 * all copies or substantial portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 * THE SOFTWARE.
  23 */
  24
  25#ifndef _GRLIB_H_
  26#define _GRLIB_H_
  27
  28#include "qdev.h"
  29#include "sysbus.h"
  30
  31/* Emulation of GrLib device is base on the GRLIB IP Core User's Manual:
  32 * http://www.gaisler.com/products/grlib/grip.pdf
  33 */
  34
  35/* IRQMP */
  36
  37typedef void (*set_pil_in_fn) (void *opaque, uint32_t pil_in);
  38
  39void grlib_irqmp_set_irq(void *opaque, int irq, int level);
  40
  41void grlib_irqmp_ack(DeviceState *dev, int intno);
  42
  43static inline
  44DeviceState *grlib_irqmp_create(target_phys_addr_t   base,
  45                                CPUState            *env,
  46                                qemu_irq           **cpu_irqs,
  47                                uint32_t             nr_irqs,
  48                                set_pil_in_fn        set_pil_in)
  49{
  50    DeviceState *dev;
  51
  52    assert(cpu_irqs != NULL);
  53
  54    dev = qdev_create(NULL, "grlib,irqmp");
  55    qdev_prop_set_ptr(dev, "set_pil_in", set_pil_in);
  56    qdev_prop_set_ptr(dev, "set_pil_in_opaque", env);
  57
  58    if (qdev_init(dev)) {
  59        return NULL;
  60    }
  61
  62    env->irq_manager = dev;
  63
  64    sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
  65
  66    *cpu_irqs = qemu_allocate_irqs(grlib_irqmp_set_irq,
  67                                   dev,
  68                                   nr_irqs);
  69
  70    return dev;
  71}
  72
  73/* GPTimer */
  74
  75static inline
  76DeviceState *grlib_gptimer_create(target_phys_addr_t  base,
  77                                  uint32_t            nr_timers,
  78                                  uint32_t            freq,
  79                                  qemu_irq           *cpu_irqs,
  80                                  int                 base_irq)
  81{
  82    DeviceState *dev;
  83    int i;
  84
  85    dev = qdev_create(NULL, "grlib,gptimer");
  86    qdev_prop_set_uint32(dev, "nr-timers", nr_timers);
  87    qdev_prop_set_uint32(dev, "frequency", freq);
  88    qdev_prop_set_uint32(dev, "irq-line", base_irq);
  89
  90    if (qdev_init(dev)) {
  91        return NULL;
  92    }
  93
  94    sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
  95
  96    for (i = 0; i < nr_timers; i++) {
  97        sysbus_connect_irq(sysbus_from_qdev(dev), i, cpu_irqs[base_irq + i]);
  98    }
  99
 100    return dev;
 101}
 102
 103/* APB UART */
 104
 105static inline
 106DeviceState *grlib_apbuart_create(target_phys_addr_t  base,
 107                                  CharDriverState    *serial,
 108                                  qemu_irq            irq)
 109{
 110    DeviceState *dev;
 111
 112    dev = qdev_create(NULL, "grlib,apbuart");
 113    qdev_prop_set_chr(dev, "chrdev", serial);
 114
 115    if (qdev_init(dev)) {
 116        return NULL;
 117    }
 118
 119    sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
 120
 121    sysbus_connect_irq(sysbus_from_qdev(dev), 0, irq);
 122
 123    return dev;
 124}
 125
 126#endif /* ! _GRLIB_H_ */
 127