--- /dev/null
+/*
+ * STM32F2XX SYSCFG
+ *
+ * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw/misc/stm32f2xx_syscfg.h"
+
+#ifndef STM_SYSCFG_ERR_DEBUG
+#define STM_SYSCFG_ERR_DEBUG 0
+#endif
+
+#define DB_PRINT_L(lvl, fmt, args...) do { \
+ if (STM_SYSCFG_ERR_DEBUG >= lvl) { \
+ qemu_log("%s: " fmt, __func__, ## args); \
+ } \
+} while (0);
+
+#define DB_PRINT(fmt, args...) DB_PRINT_L(1, fmt, ## args)
+
+static void stm32f2xx_syscfg_reset(DeviceState *dev)
+{
+ STM32F2XXSyscfgState *s = STM32F2XX_SYSCFG(dev);
+
+ s->syscfg_memrmp = 0x00000000;
+ s->syscfg_pmc = 0x00000000;
+ s->syscfg_exticr1 = 0x00000000;
+ s->syscfg_exticr2 = 0x00000000;
+ s->syscfg_exticr3 = 0x00000000;
+ s->syscfg_exticr4 = 0x00000000;
+ s->syscfg_cmpcr = 0x00000000;
+}
+
+static uint64_t stm32f2xx_syscfg_read(void *opaque, hwaddr addr,
+ unsigned int size)
+{
+ STM32F2XXSyscfgState *s = opaque;
+
+ DB_PRINT("0x%"HWADDR_PRIx"\n", addr);
+
+ switch (addr) {
+ case SYSCFG_MEMRMP:
+ return s->syscfg_memrmp;
+ case SYSCFG_PMC:
+ return s->syscfg_pmc;
+ case SYSCFG_EXTICR1:
+ return s->syscfg_exticr1;
+ case SYSCFG_EXTICR2:
+ return s->syscfg_exticr2;
+ case SYSCFG_EXTICR3:
+ return s->syscfg_exticr3;
+ case SYSCFG_EXTICR4:
+ return s->syscfg_exticr4;
+ case SYSCFG_CMPCR:
+ return s->syscfg_cmpcr;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bad offset 0x%"HWADDR_PRIx"\n", __func__, addr);
+ return 0;
+ }
+
+ return 0;
+}
+
+static void stm32f2xx_syscfg_write(void *opaque, hwaddr addr,
+ uint64_t val64, unsigned int size)
+{
+ STM32F2XXSyscfgState *s = opaque;
+ uint32_t value = val64;
+
+ DB_PRINT("0x%x, 0x%"HWADDR_PRIx"\n", value, addr);
+
+ switch (addr) {
+ case SYSCFG_MEMRMP:
+ qemu_log_mask(LOG_UNIMP,
+ "%s: Changeing the memory mapping isn't supported " \
+ "in QEMU\n", __func__);
+ return;
+ case SYSCFG_PMC:
+ qemu_log_mask(LOG_UNIMP,
+ "%s: Changeing the memory mapping isn't supported " \
+ "in QEMU\n", __func__);
+ return;
+ case SYSCFG_EXTICR1:
+ s->syscfg_exticr1 = (value & 0xFFFF);
+ return;
+ case SYSCFG_EXTICR2:
+ s->syscfg_exticr2 = (value & 0xFFFF);
+ return;
+ case SYSCFG_EXTICR3:
+ s->syscfg_exticr3 = (value & 0xFFFF);
+ return;
+ case SYSCFG_EXTICR4:
+ s->syscfg_exticr4 = (value & 0xFFFF);
+ return;
+ case SYSCFG_CMPCR:
+ s->syscfg_cmpcr = value;
+ return;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "%s: Bad offset 0x%"HWADDR_PRIx"\n", __func__, addr);
+ }
+}
+
+static const MemoryRegionOps stm32f2xx_syscfg_ops = {
+ .read = stm32f2xx_syscfg_read,
+ .write = stm32f2xx_syscfg_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static void stm32f2xx_syscfg_init(Object *obj)
+{
+ STM32F2XXSyscfgState *s = STM32F2XX_SYSCFG(obj);
+
+ sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->irq);
+
+ memory_region_init_io(&s->mmio, obj, &stm32f2xx_syscfg_ops, s,
+ TYPE_STM32F2XX_SYSCFG, 0x400);
+ sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio);
+}
+
+static void stm32f2xx_syscfg_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->reset = stm32f2xx_syscfg_reset;
+}
+
+static const TypeInfo stm32f2xx_syscfg_info = {
+ .name = TYPE_STM32F2XX_SYSCFG,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(STM32F2XXSyscfgState),
+ .instance_init = stm32f2xx_syscfg_init,
+ .class_init = stm32f2xx_syscfg_class_init,
+};
+
+static void stm32f2xx_syscfg_register_types(void)
+{
+ type_register_static(&stm32f2xx_syscfg_info);
+}
+
+type_init(stm32f2xx_syscfg_register_types)
Code Review / kvmfornfv.git / blobdiff