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hwstub: add support for coprocessor operations

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At the moment the stub only implement them for MIPS.

Change-Id: Ica835a0e9c70fa5675c3d655eae986e812a47de8
This commit is contained in:
Amaury Pouly 2016-08-04 17:06:11 +01:00
parent d91d9f6851
commit 8fabbb008c
11 changed files with 423 additions and 17 deletions
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46
utils/hwstub/lib/hwstub.cpp
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@ -45,6 +45,8 @@ std::string error_string(error err)
case error::PROTOCOL_ERROR: return "network protocol error";
case error::TIMEOUT: return "timeout";
case error::OVERFLW: return "overflow";
case error::UNIMPLEMENTED: return "operation is not implemented";
case error::UNSUPPORTED: return "operation unsupported";
default: return "unknown error";
}
}
@ -457,6 +459,38 @@ error handle::write(uint32_t addr, const void *buf, size_t& sz, bool atomic)
return error::SUCCESS;
}
error handle::cop_op(uint8_t op, uint8_t args[HWSTUB_COP_ARGS], const void *out_data,
size_t out_size, void *in_data, size_t *in_size)
{
std::unique_lock<std::recursive_mutex> lock(m_mutex);
/* get a pointer so that it's not destroyed during the runtime of the function,
* the pointer will be released at the end of the function */
std::shared_ptr<context> ctx = m_dev->get_context();
if(!ctx)
return error::NO_CONTEXT;
/* ensure valid status */
error err = status();
if(err != error::SUCCESS)
return err;
return cop_dev(op, args, out_data, out_size, in_data, in_size);
}
error handle::read32_cop(uint8_t args[HWSTUB_COP_ARGS], uint32_t& value)
{
size_t sz = sizeof(value);
error err = cop_op(HWSTUB_COP_READ, args, nullptr, 0, &value, &sz);
if(err != error::SUCCESS)
return err;
if(sz != sizeof(value))
return error::ERROR;
return error::SUCCESS;
}
error handle::write32_cop(uint8_t args[HWSTUB_COP_ARGS], uint32_t value)
{
return cop_op(HWSTUB_COP_WRITE, args, &value, sizeof(value), nullptr, nullptr);
}
error handle::status() const
{
/* check context */
@ -616,6 +650,18 @@ error dummy_handle::exec_dev(uint32_t addr, uint16_t flags)
return error::DUMMY;
}
error dummy_handle::cop_dev(uint8_t op, uint8_t args[HWSTUB_COP_ARGS],
const void *out_data, size_t out_size, void *in_data, size_t *in_size)
{
(void) op;
(void) args;
(void) out_data;
(void) out_size;
(void) in_data;
(void) in_size;
return error::DUMMY;
}
error dummy_handle::status() const
{
error err = handle::status();