diff options
Diffstat (limited to 'dev/io_device.hh')
| -rw-r--r-- | dev/io_device.hh | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/dev/io_device.hh b/dev/io_device.hh index a81dae072..5379a664c 100644 --- a/dev/io_device.hh +++ b/dev/io_device.hh @@ -30,7 +30,7 @@ #define __DEV_IO_DEVICE_HH__ #include "base/chunk_generator.hh" -#include "mem/port.hh" +#include "mem/mem_object.hh" #include "sim/eventq.hh" #include "sim/sim_object.hh" @@ -172,7 +172,7 @@ class DmaPort : public Port * bother. */ -class PioDevice : public SimObject +class PioDevice : public MemObject { protected: @@ -192,11 +192,17 @@ class PioDevice : public SimObject { return pkt.cmd == Read ? this->read(pkt) : this->write(pkt); } /** Pure virtual function that the device must implement. Called when a read - * command is recieved by the port. */ + * command is recieved by the port. + * @param pkt Packet describing this request + * @return number of ticks it took to complete + */ virtual Tick read(Packet &pkt) = 0; /** Pure virtual function that the device must implement. Called when a - * write command is recieved by the port. */ + * write command is recieved by the port. + * @param pkt Packet describing this request + * @return number of ticks it took to complete + */ virtual Tick write(Packet &pkt) = 0; public: @@ -218,11 +224,14 @@ class PioDevice : public SimObject const Params *params() const { return _params; } PioDevice(Params *p) - : SimObject(params()->name), platform(p->platform), _params(p) + : MemObject(p->name), platform(p->platform), pioPort(NULL), + _params(p) {} virtual ~PioDevice(); + virtual void init(); + virtual Port *getPort(const std::string &if_name) { if (if_name == "pio") { @@ -261,6 +270,11 @@ class BasicPioDevice : public PioDevice : PioDevice(p), pioAddr(p->pio_addr), pioSize(0), pioDelay(p->pio_delay) {} + /** return the address ranges that this device responds to. + * @params range_list range list to populate with ranges + */ + void addressRanges(AddrRangeList &range_list); + }; class DmaDevice : public PioDevice |