diff options
Diffstat (limited to 'hw/ppc/ppc4xx_i2c.c')
-rw-r--r-- | hw/ppc/ppc4xx_i2c.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/hw/ppc/ppc4xx_i2c.c b/hw/ppc/ppc4xx_i2c.c deleted file mode 100644 index 5a6bde9..0000000 --- a/hw/ppc/ppc4xx_i2c.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * PPC4xx I2C controller emulation - * - * Copyright (c) 2007 Jocelyn Mayer - * - * 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 "qemu/osdep.h" -#include "qapi/error.h" -#include "qemu-common.h" -#include "cpu.h" -#include "hw/hw.h" -#include "hw/i2c/ppc4xx_i2c.h" - -/*#define DEBUG_I2C*/ - -#define PPC4xx_I2C_MEM_SIZE 0x11 - -static uint64_t ppc4xx_i2c_readb(void *opaque, hwaddr addr, unsigned int size) -{ - PPC4xxI2CState *i2c = PPC4xx_I2C(opaque); - uint64_t ret; - -#ifdef DEBUG_I2C - printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); -#endif - switch (addr) { - case 0x00: - /*i2c_readbyte(&i2c->mdata);*/ - ret = i2c->mdata; - break; - case 0x02: - ret = i2c->sdata; - break; - case 0x04: - ret = i2c->lmadr; - break; - case 0x05: - ret = i2c->hmadr; - break; - case 0x06: - ret = i2c->cntl; - break; - case 0x07: - ret = i2c->mdcntl; - break; - case 0x08: - ret = i2c->sts; - break; - case 0x09: - ret = i2c->extsts; - break; - case 0x0A: - ret = i2c->lsadr; - break; - case 0x0B: - ret = i2c->hsadr; - break; - case 0x0C: - ret = i2c->clkdiv; - break; - case 0x0D: - ret = i2c->intrmsk; - break; - case 0x0E: - ret = i2c->xfrcnt; - break; - case 0x0F: - ret = i2c->xtcntlss; - break; - case 0x10: - ret = i2c->directcntl; - break; - default: - ret = 0x00; - break; - } -#ifdef DEBUG_I2C - printf("%s: addr " TARGET_FMT_plx " %02" PRIx64 "\n", __func__, addr, ret); -#endif - - return ret; -} - -static void ppc4xx_i2c_writeb(void *opaque, hwaddr addr, uint64_t value, - unsigned int size) -{ - PPC4xxI2CState *i2c = opaque; -#ifdef DEBUG_I2C - printf("%s: addr " TARGET_FMT_plx " val %08" PRIx64 "\n", - __func__, addr, value); -#endif - switch (addr) { - case 0x00: - i2c->mdata = value; - /*i2c_sendbyte(&i2c->mdata);*/ - break; - case 0x02: - i2c->sdata = value; - break; - case 0x04: - i2c->lmadr = value; - break; - case 0x05: - i2c->hmadr = value; - break; - case 0x06: - i2c->cntl = value; - break; - case 0x07: - i2c->mdcntl = value & 0xDF; - break; - case 0x08: - i2c->sts &= ~(value & 0x0A); - break; - case 0x09: - i2c->extsts &= ~(value & 0x8F); - break; - case 0x0A: - i2c->lsadr = value; - break; - case 0x0B: - i2c->hsadr = value; - break; - case 0x0C: - i2c->clkdiv = value; - break; - case 0x0D: - i2c->intrmsk = value; - break; - case 0x0E: - i2c->xfrcnt = value & 0x77; - break; - case 0x0F: - i2c->xtcntlss = value; - break; - case 0x10: - i2c->directcntl = value & 0x7; - break; - } -} - -static const MemoryRegionOps ppc4xx_i2c_ops = { - .read = ppc4xx_i2c_readb, - .write = ppc4xx_i2c_writeb, - .valid.min_access_size = 1, - .valid.max_access_size = 4, - .impl.min_access_size = 1, - .impl.max_access_size = 1, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -static void ppc4xx_i2c_reset(DeviceState *s) -{ - PPC4xxI2CState *i2c = PPC4xx_I2C(s); - - i2c->mdata = 0x00; - i2c->sdata = 0x00; - i2c->cntl = 0x00; - i2c->mdcntl = 0x00; - i2c->sts = 0x00; - i2c->extsts = 0x00; - i2c->clkdiv = 0x00; - i2c->xfrcnt = 0x00; - i2c->directcntl = 0x0F; -} - -static void ppc4xx_i2c_init(Object *o) -{ - PPC4xxI2CState *s = PPC4xx_I2C(o); - - memory_region_init_io(&s->iomem, OBJECT(s), &ppc4xx_i2c_ops, s, - TYPE_PPC4xx_I2C, PPC4xx_I2C_MEM_SIZE); - sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem); - sysbus_init_irq(SYS_BUS_DEVICE(s), &s->irq); - s->bus = i2c_init_bus(DEVICE(s), "i2c"); -} - -static void ppc4xx_i2c_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - - dc->reset = ppc4xx_i2c_reset; -} - -static const TypeInfo ppc4xx_i2c_type_info = { - .name = TYPE_PPC4xx_I2C, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(PPC4xxI2CState), - .instance_init = ppc4xx_i2c_init, - .class_init = ppc4xx_i2c_class_init, -}; - -static void ppc4xx_i2c_register_types(void) -{ - type_register_static(&ppc4xx_i2c_type_info); -} - -type_init(ppc4xx_i2c_register_types) |