hw/pci_host.c

   1 /*
   2  * pci_host.c
   3  *
   4  * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
   5  *                    VA Linux Systems Japan K.K.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11
  12  * This program 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
  15  * GNU General Public License for more details.
  16
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "pci.h"
  23 #include "pci_host.h"
  24
  25 /* debug PCI */
  26 //#define DEBUG_PCI
  27
  28 #ifdef DEBUG_PCI
  29 #define PCI_DPRINTF(fmt, ...) \
  30 do { printf("pci_host_data: " fmt , ## __VA_ARGS__); } while (0)
  31 #else
  32 #define PCI_DPRINTF(fmt, ...)
  33 #endif
  34
  35 static void pci_host_config_writel(void *opaque, target_phys_addr_t addr,
  36                                    uint32_t val)
  37 {
  38     PCIHostState *s = opaque;
  39
  40 #ifdef TARGET_WORDS_BIGENDIAN
  41     val = bswap32(val);
  42 #endif
  43     PCI_DPRINTF("%s addr " TARGET_FMT_plx " val %"PRIx32"\n",
  44                 __func__, addr, val);
  45     s->config_reg = val;
  46 }
  47
  48 static uint32_t pci_host_config_readl(void *opaque, target_phys_addr_t addr)
  49 {
  50     PCIHostState *s = opaque;
  51     uint32_t val = s->config_reg;
  52
  53 #ifdef TARGET_WORDS_BIGENDIAN
  54     val = bswap32(val);
  55 #endif
  56     PCI_DPRINTF("%s addr " TARGET_FMT_plx " val %"PRIx32"\n",
  57                 __func__, addr, val);
  58     return val;
  59 }
  60
  61 static CPUWriteMemoryFunc * const pci_host_config_write[] = {
  62     &pci_host_config_writel,
  63     &pci_host_config_writel,
  64     &pci_host_config_writel,
  65 };
  66
  67 static CPUReadMemoryFunc * const pci_host_config_read[] = {
  68     &pci_host_config_readl,
  69     &pci_host_config_readl,
  70     &pci_host_config_readl,
  71 };
  72
  73 int pci_host_config_register_io_memory(PCIHostState *s)
  74 {
  75     return cpu_register_io_memory(pci_host_config_read,
  76                                   pci_host_config_write, s);
  77 }
  78
  79 static void pci_host_config_writel_noswap(void *opaque,
  80                                           target_phys_addr_t addr,
  81                                           uint32_t val)
  82 {
  83     PCIHostState *s = opaque;
  84
  85     PCI_DPRINTF("%s addr " TARGET_FMT_plx " val %"PRIx32"\n",
  86                 __func__, addr, val);
  87     s->config_reg = val;
  88 }
  89
  90 static uint32_t pci_host_config_readl_noswap(void *opaque,
  91                                              target_phys_addr_t addr)
  92 {
  93     PCIHostState *s = opaque;
  94     uint32_t val = s->config_reg;
  95
  96     PCI_DPRINTF("%s addr " TARGET_FMT_plx " val %"PRIx32"\n",
  97                 __func__, addr, val);
  98     return val;
  99 }
 100
 101 static CPUWriteMemoryFunc * const pci_host_config_write_noswap[] = {
 102     &pci_host_config_writel_noswap,
 103     &pci_host_config_writel_noswap,
 104     &pci_host_config_writel_noswap,
 105 };
 106
 107 static CPUReadMemoryFunc * const pci_host_config_read_noswap[] = {
 108     &pci_host_config_readl_noswap,
 109     &pci_host_config_readl_noswap,
 110     &pci_host_config_readl_noswap,
 111 };
 112
 113 int pci_host_config_register_io_memory_noswap(PCIHostState *s)
 114 {
 115     return cpu_register_io_memory(pci_host_config_read_noswap,
 116                                   pci_host_config_write_noswap, s);
 117 }
 118
 119 static void pci_host_config_writel_ioport(void *opaque,
 120                                           uint32_t addr, uint32_t val)
 121 {
 122     PCIHostState *s = opaque;
 123
 124     PCI_DPRINTF("%s addr %"PRIx32 " val %"PRIx32"\n", __func__, addr, val);
 125     s->config_reg = val;
 126 }
 127
 128 static uint32_t pci_host_config_readl_ioport(void *opaque, uint32_t addr)
 129 {
 130     PCIHostState *s = opaque;
 131     uint32_t val = s->config_reg;
 132
 133     PCI_DPRINTF("%s addr %"PRIx32" val %"PRIx32"\n", __func__, addr, val);
 134     return val;
 135 }
 136
 137 void pci_host_config_register_ioport(pio_addr_t ioport, PCIHostState *s)
 138 {
 139     register_ioport_write(ioport, 4, 4, pci_host_config_writel_ioport, s);
 140     register_ioport_read(ioport, 4, 4, pci_host_config_readl_ioport, s);
 141 }
 142
 143 #define PCI_ADDR_T      target_phys_addr_t
 144 #define PCI_HOST_SUFFIX _mmio
 145
 146 #include "pci_host_template.h"
 147
 148 static CPUWriteMemoryFunc * const pci_host_data_write_mmio[] = {
 149     pci_host_data_writeb_mmio,
 150     pci_host_data_writew_mmio,
 151     pci_host_data_writel_mmio,
 152 };
 153
 154 static CPUReadMemoryFunc * const pci_host_data_read_mmio[] = {
 155     pci_host_data_readb_mmio,
 156     pci_host_data_readw_mmio,
 157     pci_host_data_readl_mmio,
 158 };
 159
 160 int pci_host_data_register_io_memory(PCIHostState *s)
 161 {
 162     return cpu_register_io_memory(pci_host_data_read_mmio,
 163                                   pci_host_data_write_mmio,
 164                                   s);
 165 }
 166
 167 #undef PCI_ADDR_T
 168 #undef PCI_HOST_SUFFIX
 169
 170 #define PCI_ADDR_T      uint32_t
 171 #define PCI_HOST_SUFFIX _ioport
 172
 173 #include "pci_host_template.h"
 174
 175 void pci_host_data_register_ioport(pio_addr_t ioport, PCIHostState *s)
 176 {
 177     register_ioport_write(ioport, 4, 1, pci_host_data_writeb_ioport, s);
 178     register_ioport_write(ioport, 4, 2, pci_host_data_writew_ioport, s);
 179     register_ioport_write(ioport, 4, 4, pci_host_data_writel_ioport, s);
 180     register_ioport_read(ioport, 4, 1, pci_host_data_readb_ioport, s);
 181     register_ioport_read(ioport, 4, 2, pci_host_data_readw_ioport, s);
 182     register_ioport_read(ioport, 4, 4, pci_host_data_readl_ioport, s);
 183 }