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Kernel: Move IO delay code to x86 architecture subdirectory

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Many code patterns and hardware procedures rely on reliable delay in the
microseconds granularity, and since they are using such delays which are
valid cases, but should not rely on x86 specific code, we allow to
determine in compile time the proper platform-specific code to use to
invoke such delays.
This commit is contained in:
Liav A 2022-09-02 11:23:32 +03:00 • committed by Linus Groh
parent cac72259d0
commit 84fbab6803
19 changed files with 96 additions and 54 deletions
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5
Kernel/Bus/USB/UHCI/UHCIController.cpp
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@ -6,6 +6,7 @@
*/
#include <AK/Platform.h>
#include <Kernel/Arch/Delay.h>
#include <Kernel/Bus/PCI/API.h>
#include <Kernel/Bus/USB/UHCI/UHCIController.h>
#include <Kernel/Bus/USB/USBRequest.h>
@ -633,7 +634,7 @@ void UHCIController::reset_port(u8 port)
// Wait at least 50 ms for the port to reset.
// This is T DRSTR in the USB 2.0 Specification Page 186 Table 7-13.
constexpr u16 reset_delay = 50 * 1000;
IO::delay(reset_delay);
microseconds_delay(reset_delay);
port_data &= ~UHCI_PORTSC_PORT_RESET;
if (port == 0)
@ -644,7 +645,7 @@ void UHCIController::reset_port(u8 port)
// Wait 10 ms for the port to recover.
// This is T RSTRCY in the USB 2.0 Specification Page 188 Table 7-14.
constexpr u16 reset_recovery_delay = 10 * 1000;
IO::delay(reset_recovery_delay);
microseconds_delay(reset_recovery_delay);
port_data = port == 0 ? read_portsc1() : read_portsc2();
port_data |= UHCI_PORTSC_PORT_ENABLED;