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https://github.com/drasko/codezero.git
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92645be6ff
Important points: ---------------- 1. Works fine for pb926 + qemu. 2. Scan code logic for kryboard is not complete. We just have generic keys and shift working. 3. Mouse scancodes are collected but not decoded. 4. Right now we are doing enable_irq(), just before we go for waiting again for new irqs. This is not correct but we had latency issues. This needs to be fixed immediately. 5. Also it seems like the notify_clot count should be an atomic variable. Needs to be discussed.
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
#ifndef __PLATFORM_IRQ_H__
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#define __PLATFORM_IRQ_H__
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#define IRQ_CHIPS_MAX 2
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/*
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* Globally unique irq chip offsets:
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*
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* A global irq number is calculated as
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* chip_offset + local_irq_offset.
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*
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* This way, the global irq number uniquely represents
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* an irq on any irq chip.
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*/
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#define VIC_CHIP_OFFSET 0
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#define SIC_CHIP_OFFSET 31
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/* Maximum irqs on VIC and SIC */
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#define VIC_IRQS_MAX 32
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#define SIC_IRQS_MAX 32
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#define IRQS_MAX VIC_IRQS_MAX + SIC_IRQS_MAX
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/* Vectored Interrupt Controller local IRQ numbers */
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#define VIC_IRQ_TIMER0 4
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#define VIC_IRQ_TIMER1 5
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#define VIC_IRQ_RTC 10
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#define VIC_IRQ_UART0 12
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#define VIC_IRQ_UART1 13
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#define VIC_IRQ_UART2 14
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#define VIC_IRQ_CLCD0 16
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#define VIC_IRQ_SIC 31
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/* Secondary Interrupt controller local IRQ numbers */
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#define SIC_IRQ_SWI 0
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#define SIC_IRQ_KEYBOARD 3
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#define SIC_IRQ_MOUSE 4
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#define SIC_IRQ_UART3 6
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/* Global irq numbers, note these should reflect global device names */
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#define IRQ_TIMER0 (VIC_IRQ_TIMER0 + VIC_CHIP_OFFSET)
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#define IRQ_TIMER1 (VIC_IRQ_TIMER1 + VIC_CHIP_OFFSET)
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#define IRQ_RTC (VIC_IRQ_RTC + VIC_CHIP_OFFSET)
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#define IRQ_UART0 (VIC_IRQ_UART0 + VIC_CHIP_OFFSET)
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#define IRQ_UART1 (VIC_IRQ_UART1 + VIC_CHIP_OFFSET)
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#define IRQ_UART2 (VIC_IRQ_UART2 + VIC_CHIP_OFFSET)
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#define IRQ_CLCD0 (VIC_IRQ_CLCD0 + VIC_CHIP_OFFSET)
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#define IRQ_SIC (VIC_IRQ_SIC + VIC_CHIP_OFFSET)
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#define IRQ_SICSWI (SIC_IRQ_SWI + SIC_CHIP_OFFSET)
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#define IRQ_UART3 (SIC_IRQ_UART3 + SIC_CHIP_OFFSET)
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#define IRQ_KEYBOARD0 (SIC_IRQ_KEYBOARD + SIC_CHIP_OFFSET)
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#define IRQ_MOUSE0 (SIC_IRQ_MOUSE + SIC_CHIP_OFFSET)
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#endif /* __PLATFORM_IRQ_H__ */
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