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 "hw/qdev.h"
  29 #include "hw/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
  37 typedef void (*set_pil_in_fn) (void *opaque, uint32_t pil_in);
  38
  39 void grlib_irqmp_set_irq(void *opaque, int irq, int level);
  40
  41 void grlib_irqmp_ack(DeviceState *dev, int intno);
  42
  43 static inline
  44 DeviceState *grlib_irqmp_create(hwaddr   base,
  45                                 CPUSPARCState            *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(SYS_BUS_DEVICE(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
  75 static inline
  76 DeviceState *grlib_gptimer_create(hwaddr  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(SYS_BUS_DEVICE(dev), 0, base);
  95
  96     for (i = 0; i < nr_timers; i++) {
  97         sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, cpu_irqs[base_irq + i]);
  98     }
  99
 100     return dev;
 101 }
 102
 103 /* APB UART */
 104
 105 static inline
 106 DeviceState *grlib_apbuart_create(hwaddr  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(SYS_BUS_DEVICE(dev), 0, base);
 120
 121     sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq);
 122
 123     return dev;
 124 }
 125
 126 #endif /* ! _GRLIB_H_ */