static void
pipeDevice_doCommand( PipeDevice* dev, uint32_t command )
{
Pipe** lookup = pipe_list_findp_channel(&dev->pipes, dev->channel);
Pipe* pipe = *lookup;
CPUState* env = cpu_single_env;
if (command != PIPE_CMD_OPEN && pipe == NULL) {
dev->status = PIPE_ERROR_INVAL;
return;
}
if (pipe != NULL && pipe->closed && command != PIPE_CMD_CLOSE) {
dev->status = PIPE_ERROR_IO;
return;
}
switch (command) {
case PIPE_CMD_OPEN:
DD("%s: CMD_OPEN channel=0x%x", __FUNCTION__, dev->channel);
if (pipe != NULL) {
dev->status = PIPE_ERROR_INVAL;
break;
}
pipe = pipe_new(dev->channel, dev);
pipe->next = dev->pipes;
dev->pipes = pipe;
dev->status = 0;
break;
case PIPE_CMD_CLOSE:
DD("%s: CMD_CLOSE channel=0x%x", __FUNCTION__, dev->channel);
*lookup = pipe->next;
pipe->next = NULL;
pipe_list_remove_waked(&dev->signaled_pipes, pipe);
pipe_free(pipe);
break;
case PIPE_CMD_POLL:
dev->status = pipe->funcs->poll(pipe->opaque);
DD("%s: CMD_POLL > status=%d", __FUNCTION__, dev->status);
break;
case PIPE_CMD_READ_BUFFER: {
GoldfishPipeBuffer buffer;
uint32_t address = dev->address;
uint32_t page = address & TARGET_PAGE_MASK;
target_phys_addr_t phys;
phys = safe_get_phys_page_debug(env, page);
buffer.data = qemu_get_ram_ptr(phys) + (address - page);
buffer.size = dev->size;
dev->status = pipe->funcs->recvBuffers(pipe->opaque, &buffer, 1);
DD("%s: CMD_READ_BUFFER channel=0x%x address=0x%08x size=%d > status=%d",
__FUNCTION__, dev->channel, dev->address, dev->size, dev->status);
break;
}
case PIPE_CMD_WRITE_BUFFER: {
GoldfishPipeBuffer buffer;
uint32_t address = dev->address;
uint32_t page = address & TARGET_PAGE_MASK;
target_phys_addr_t phys;
phys = safe_get_phys_page_debug(env, page);
buffer.data = qemu_get_ram_ptr(phys) + (address - page);
buffer.size = dev->size;
dev->status = pipe->funcs->sendBuffers(pipe->opaque, &buffer, 1);
DD("%s: CMD_WRITE_BUFFER channel=0x%x address=0x%08x size=%d > status=%d",
__FUNCTION__, dev->channel, dev->address, dev->size, dev->status);
break;
}
case PIPE_CMD_WAKE_ON_READ:
DD("%s: CMD_WAKE_ON_READ channel=0x%x", __FUNCTION__, dev->channel);
if ((pipe->wanted & PIPE_WAKE_READ) == 0) {
pipe->wanted |= PIPE_WAKE_READ;
pipe->funcs->wakeOn(pipe->opaque, pipe->wanted);
}
dev->status = 0;
break;
case PIPE_CMD_WAKE_ON_WRITE:
DD("%s: CMD_WAKE_ON_WRITE channel=0x%x", __FUNCTION__, dev->channel);
if ((pipe->wanted & PIPE_WAKE_WRITE) == 0) {
pipe->wanted |= PIPE_WAKE_WRITE;
pipe->funcs->wakeOn(pipe->opaque, pipe->wanted);
}
dev->status = 0;
break;
default:
D("%s: command=%d (0x%x)\n", __FUNCTION__, command, command);
}
}
static void
pipeDevice_doCommand( PipeDevice* dev, uint32_t command )
{
Pipe** lookup = pipe_list_findp_channel(&dev->pipes, dev->channel);
Pipe* pipe = *lookup;
CPUOldState* env = cpu_single_env;
/* Check that we're referring a known pipe channel */
if (command != PIPE_CMD_OPEN && pipe == NULL) {
dev->status = PIPE_ERROR_INVAL;
return;
}
/* If the pipe is closed by the host, return an error */
if (pipe != NULL && pipe->closed && command != PIPE_CMD_CLOSE) {
dev->status = PIPE_ERROR_IO;
return;
}
switch (command) {
case PIPE_CMD_OPEN:
DD("%s: CMD_OPEN channel=0x%llx", __FUNCTION__, (unsigned long long)dev->channel);
if (pipe != NULL) {
dev->status = PIPE_ERROR_INVAL;
break;
}
pipe = pipe_new(dev->channel, dev);
pipe->next = dev->pipes;
dev->pipes = pipe;
dev->status = 0;
break;
case PIPE_CMD_CLOSE:
DD("%s: CMD_CLOSE channel=0x%llx", __FUNCTION__, (unsigned long long)dev->channel);
/* Remove from device's lists */
*lookup = pipe->next;
pipe->next = NULL;
pipe_list_remove_waked(&dev->signaled_pipes, pipe);
pipe_free(pipe);
break;
case PIPE_CMD_POLL:
dev->status = pipe->funcs->poll(pipe->opaque);
DD("%s: CMD_POLL > status=%d", __FUNCTION__, dev->status);
break;
case PIPE_CMD_READ_BUFFER: {
/* Translate virtual address into physical one, into emulator memory. */
GoldfishPipeBuffer buffer;
target_ulong address = dev->address;
target_ulong page = address & TARGET_PAGE_MASK;
hwaddr phys;
phys = safe_get_phys_page_debug(ENV_GET_CPU(env), page);
#ifdef TARGET_X86_64
phys = phys & TARGET_PTE_MASK;
#endif
buffer.data = qemu_get_ram_ptr(phys) + (address - page);
buffer.size = dev->size;
dev->status = pipe->funcs->recvBuffers(pipe->opaque, &buffer, 1);
extern int matchMeInPidTid(CPUArchState *);
extern int getMeContextId(CPUArchState *);
if(matchMeInPidTid(env))
{
printf("%d %s: CMD_READ_BUFFER channel=0x%llx address=0x%16llx size=%d > status=%d",
getMeContextId(env),
__FUNCTION__, (unsigned long long)dev->channel, (unsigned long long)dev->address,
dev->size, dev->status);
}
DD("%s: CMD_READ_BUFFER channel=0x%llx address=0x%16llx size=%d > status=%d",
__FUNCTION__, (unsigned long long)dev->channel, (unsigned long long)dev->address,
dev->size, dev->status);
break;
}
case PIPE_CMD_WRITE_BUFFER: {
/* Translate virtual address into physical one, into emulator memory. */
GoldfishPipeBuffer buffer;
target_ulong address = dev->address;
target_ulong page = address & TARGET_PAGE_MASK;
hwaddr phys;
phys = safe_get_phys_page_debug(ENV_GET_CPU(env), page);
#ifdef TARGET_X86_64
phys = phys & TARGET_PTE_MASK;
#endif
buffer.data = qemu_get_ram_ptr(phys) + (address - page);
buffer.size = dev->size;
dev->status = pipe->funcs->sendBuffers(pipe->opaque, &buffer, 1);
extern int matchMeInPidTid(CPUArchState *);
extern int getMeContextId(CPUArchState *);
if(matchMeInPidTid(env))
{
printf("%d %s: CMD_WRITE_BUFFER channel=0x%llx address=0x%16llx size=%d > status=%d",
getMeContextId(env),
__FUNCTION__, (unsigned long long)dev->channel, (unsigned long long)dev->address,
dev->size, dev->status);
}
DD("%s: CMD_WRITE_BUFFER channel=0x%llx address=0x%16llx size=%d > status=%d",
__FUNCTION__, (unsigned long long)dev->channel, (unsigned long long)dev->address,
dev->size, dev->status);
break;
}
case PIPE_CMD_WAKE_ON_READ:
DD("%s: CMD_WAKE_ON_READ channel=0x%llx", __FUNCTION__, (unsigned long long)dev->channel);
if ((pipe->wanted & PIPE_WAKE_READ) == 0) {
pipe->wanted |= PIPE_WAKE_READ;
pipe->funcs->wakeOn(pipe->opaque, pipe->wanted);
}
dev->status = 0;
break;
case PIPE_CMD_WAKE_ON_WRITE:
DD("%s: CMD_WAKE_ON_WRITE channel=0x%llx", __FUNCTION__, (unsigned long long)dev->channel);
if ((pipe->wanted & PIPE_WAKE_WRITE) == 0) {
pipe->wanted |= PIPE_WAKE_WRITE;
pipe->funcs->wakeOn(pipe->opaque, pipe->wanted);
}
dev->status = 0;
break;
default:
D("%s: command=%d (0x%x)\n", __FUNCTION__, command, command);
}
}