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SatCat5
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SatCat5
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Memory-mapped local ConfigBus.
The simplest and most direct implementation of the ConfigBus API. Reads and writes map directly to addresses in physical memory. This class also serves as a hardware interrupt handler for the shared ConfigBus interrupt.
For interrupts from specific peripherals,
Some peripherals, such as port::MailMap, can only function when attached through a cfg::ConfigBusMmap interface.
Definition at line 196 of file cfgbus_core.h.
#include <cfgbus_core.h>
Public Member Functions | |
| ConfigBusMmap (void *base_ptr, int irq) | |
| Constructor accepts the base pointer for the memory-map interface, and the interrupt-index for the shared ConfigBus interrupt, if any. | |
| satcat5::cfg::IoStatus | read (unsigned regaddr, u32 &val) override |
| Basic single-register read operation. | |
| satcat5::cfg::IoStatus | write (unsigned regaddr, u32 val) override |
| Basic single-register write operation. | |
| void * | get_device_mmap (unsigned dev) const |
| Get a raw pointer to the designated device-address. | |
| volatile u32 * | get_register_mmap (unsigned addr) const |
| Get a raw pointer to the designated combined-address. | |
| virtual satcat5::cfg::IoStatus | read_array (unsigned regaddr, unsigned count, u32 *result) |
| Bulk-read with auto-increment (regaddr, regaddr+1, ...) Bulk read/write operations are more efficient when controlling ConfigBus peripherals over a network interface. | |
| virtual satcat5::cfg::IoStatus | read_repeat (unsigned regaddr, unsigned count, u32 *result) |
| Bulk-read the same register N times. | |
| virtual satcat5::cfg::IoStatus | write_array (unsigned regaddr, unsigned count, const u32 *data) |
| Bulk-write with auto-increment (regaddr, regaddr+1, ...) | |
| virtual satcat5::cfg::IoStatus | write_repeat (unsigned regaddr, unsigned count, const u32 *data) |
| Bulk-write the same register N times. | |
| unsigned | get_regaddr (unsigned dev, unsigned reg) const |
| Convert device + register to combined address. | |
| void | register_irq (satcat5::cfg::Interrupt *obj) |
| Add an interrupt handler. More... | |
| void | unregister_irq (satcat5::cfg::Interrupt *obj) |
| Remove an interrupt handler. | |
| unsigned | count_irq () const |
| Count attached interrupt handlers. | |
| satcat5::cfg::Register | get_register (unsigned dev, unsigned reg=0) |
| Create register-map object for the given device address. More... | |
| void | irq_poll () |
| Poll all registered ConfigBus interrupt handlers. More... | |
Public Attributes | |
| const char *const | m_label |
| Human-readable label, for debugging. | |
| const int | m_irq_idx |
| IRQ index for this interrupt handler. | |
Protected Member Functions | |
| void | irq_event () override |
| Method called whenever an interrupt is triggered. | |
Protected Attributes | |
| volatile u32 * | m_base_ptr |
| satcat5::util::List< satcat5::cfg::Interrupt > | m_irq_list |
| u32 | m_max_irqtime |
| Statistics tracking for time consumed by this interrupt. | |
Private Attributes | |
| satcat5::irq::Handler * | m_next |
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inherited |
Create register-map object for the given device address.
(Or for a specific register, if the register address is specified.)
Definition at line 101 of file cfgbus_core.cc.
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inherited |
Poll all registered ConfigBus interrupt handlers.
Issue callbacks to any that may have triggered. (This method should not usually be called directly.)
Definition at line 111 of file cfgbus_core.cc.
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inherited |
Add an interrupt handler.
Each ConfigBus interface has a single interrupt signal, which is the logical OR of interrupts from all attached peripherals. When any peripheral raises its interrupt signal, call irq_poll().
Definition at line 80 of file cfgbus_core.cc.
1.9.1