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Kernel: Use generic functions to change interrupt state of Processor

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This allows these files to be built for aarch64.
This commit is contained in:
Timon Kruiper 2022-10-25 18:42:57 +02:00 • committed by Gunnar Beutner
parent acfeffc9ca
commit f9ab02429b
2 changed files with 27 additions and 26 deletions
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49
Kernel/Devices/Audio/AC97.cpp
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@ -8,6 +8,7 @@
#include <Kernel/Arch/Delay.h>
#include <Kernel/Devices/Audio/AC97.h>
#include <Kernel/Devices/DeviceManagement.h>
#include <Kernel/InterruptDisabler.h>
#include <Kernel/Memory/AnonymousVMObject.h>
namespace Kernel {
@ -226,34 +227,34 @@ ErrorOr<void> AC97::write_single_buffer(UserOrKernelBuffer const& data, size_t o
{
VERIFY(length <= PAGE_SIZE);
// Block until we can write into an unused buffer
cli();
do {
auto pcm_out_status = m_pcm_out_channel->io_window().read16(AC97Channel::Register::Status);
auto current_index = m_pcm_out_channel->io_window().read8(AC97Channel::Register::CurrentIndexValue);
int last_valid_index = m_pcm_out_channel->io_window().read8(AC97Channel::Register::LastValidIndex);
{
// Block until we can write into an unused buffer
InterruptDisabler disabler;
do {
auto pcm_out_status = m_pcm_out_channel->io_window().read16(AC97Channel::Register::Status);
auto current_index = m_pcm_out_channel->io_window().read8(AC97Channel::Register::CurrentIndexValue);
int last_valid_index = m_pcm_out_channel->io_window().read8(AC97Channel::Register::LastValidIndex);
auto head_distance = last_valid_index - current_index;
if (head_distance < 0)
head_distance += buffer_descriptor_list_max_entries;
if (m_pcm_out_channel->dma_running())
++head_distance;
auto head_distance = last_valid_index - current_index;
if (head_distance < 0)
head_distance += buffer_descriptor_list_max_entries;
if (m_pcm_out_channel->dma_running())
++head_distance;
// Current index has _passed_ last valid index - move our list index up
if (head_distance > m_output_buffer_page_count) {
m_buffer_descriptor_list_index = current_index + 1;
break;
}
// Current index has _passed_ last valid index - move our list index up
if (head_distance > m_output_buffer_page_count) {
m_buffer_descriptor_list_index = current_index + 1;
break;
}
// There is room for our data
if (head_distance < m_output_buffer_page_count)
break;
dbgln_if(AC97_DEBUG, "AC97 @ {}: waiting on interrupt - status: {:#05b} CI: {} LVI: {}", pci_address(), pcm_out_status, current_index, last_valid_index);
m_irq_queue.wait_forever("AC97"sv);
} while (m_pcm_out_channel->dma_running());
sti();
// There is room for our data
if (head_distance < m_output_buffer_page_count)
break;
dbgln_if(AC97_DEBUG, "AC97 @ {}: waiting on interrupt - status: {:#05b} CI: {} LVI: {}", pci_address(), pcm_out_status, current_index, last_valid_index);
m_irq_queue.wait_forever("AC97"sv);
} while (m_pcm_out_channel->dma_running());
}
// Copy data from userspace into one of our buffers
TRY(data.read(m_output_buffer->vaddr_from_page_index(m_output_buffer_page_index).as_ptr(), offset, length));