forked from Bananymous/banan-os
Bananymous
ad143c184f
This is still buggy and some hubs lead to usb transaction errors. I'll have to debug this but this shouldn't prevent any already working device from working
41 lines
890 B
C++
41 lines
890 B
C++
#include <kernel/USB/Controller.h>
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namespace Kernel
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{
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USBController::USBController()
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{
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for (auto& count : m_hubs_to_init_per_tier)
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count = 0;
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m_hubs_to_init_per_tier[0] = 1;
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}
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uint8_t USBController::current_hub_init_tier() const
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{
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SpinLockGuard _(m_hub_init_lock);
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return m_current_hub_init_tier;
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}
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void USBController::register_hub_to_init(uint8_t tier)
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{
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ASSERT(tier >= 1);
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ASSERT(tier <= m_hubs_to_init_per_tier.size());
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SpinLockGuard _(m_hub_init_lock);
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m_hubs_to_init_per_tier[tier]++;
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if (tier < m_current_hub_init_tier)
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m_current_hub_init_tier = tier;
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}
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void USBController::mark_hub_init_done(uint8_t tier)
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{
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ASSERT(tier < m_hubs_to_init_per_tier.size());
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SpinLockGuard _(m_hub_init_lock);
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m_hubs_to_init_per_tier[tier]--;
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if (tier == m_current_hub_init_tier && m_hubs_to_init_per_tier[tier] == 0)
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m_current_hub_init_tier++;
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}
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}
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