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32 /*****************************************************************************/
36 * @addtogroup scugic_v3_1
39 * This header file contains identifiers and HW access functions (or
40 * macros) that can be used to access the device. The user should refer to the
41 * hardware device specification for more details of the device operation.
42 * The driver functions/APIs are defined in xscugic.h.
44 * This GIC device has two parts, a distributor and CPU interface(s). Each part
45 * has separate register definition sections.
49 * MODIFICATION HISTORY:
51 * Ver Who Date Changes
52 * ----- ---- -------- -----------------------------------------------------
53 * 1.00a drg 01/19/10 First release
54 * 1.01a sdm 11/09/11 "xil_exception.h" added as include.
55 * Macros XScuGic_EnableIntr and XScuGic_DisableIntr are
56 * added to enable or disable interrupts based on
57 * Distributor Register base address. Normally users use
58 * XScuGic instance and call XScuGic_Enable or
59 * XScuGic_Disable to enable/disable interrupts. These
60 * new macros are provided when user does not want to
61 * use an instance pointer but still wants to enable or
63 * Function prototypes for functions (present in newly
64 * added file xscugic_hw.c) are added.
65 * 1.03a srt 02/27/13 Moved Offset calculation macros from *_hw.c (CR
67 * 1.04a hk 05/04/13 Fix for CR#705621. Moved function prototypes
68 * XScuGic_SetPriTrigTypeByDistAddr and
69 * XScuGic_GetPriTrigTypeByDistAddr here from xscugic.h
70 * 3.0 pkp 12/09/14 changed XSCUGIC_MAX_NUM_INTR_INPUTS for
72 * 3.0 kvn 02/13/14 Modified code for MISRA-C:2012 compliance.
73 * 3.2 pkp 11/09/15 Corrected the interrupt processsor target mask value
74 * for CPU interface 2 i.e. XSCUGIC_SPI_CPU2_MASK
77 ******************************************************************************/
79 #ifndef XSCUGIC_HW_H /* prevent circular inclusions */
80 #define XSCUGIC_HW_H /* by using protection macros */
86 /***************************** Include Files *********************************/
88 #include "xil_types.h"
89 #include "xil_assert.h"
91 #include "xil_exception.h"
93 /************************** Constant Definitions *****************************/
96 * The maximum number of interrupts supported by the hardware.
99 #define XSCUGIC_MAX_NUM_INTR_INPUTS 95U /* Maximum number of interrupt defined by Zynq */
101 #define XSCUGIC_MAX_NUM_INTR_INPUTS 195U /* Maximum number of interrupt defined by Zynq Ultrascale Mp */
105 * The maximum priority value that can be used in the GIC.
107 #define XSCUGIC_MAX_INTR_PRIO_VAL 248U
108 #define XSCUGIC_INTR_PRIO_MASK 0x000000F8U
110 /** @name Distributor Interface Register Map
112 * Define the offsets from the base address for all Distributor registers of
113 * the interrupt controller, some registers may be reserved in the hardware
117 #define XSCUGIC_DIST_EN_OFFSET 0x00000000U /**< Distributor Enable
119 #define XSCUGIC_IC_TYPE_OFFSET 0x00000004U /**< Interrupt Controller
121 #define XSCUGIC_DIST_IDENT_OFFSET 0x00000008U /**< Implementor ID
123 #define XSCUGIC_SECURITY_OFFSET 0x00000080U /**< Interrupt Security
125 #define XSCUGIC_ENABLE_SET_OFFSET 0x00000100U /**< Enable Set
127 #define XSCUGIC_DISABLE_OFFSET 0x00000180U /**< Enable Clear Register */
128 #define XSCUGIC_PENDING_SET_OFFSET 0x00000200U /**< Pending Set
130 #define XSCUGIC_PENDING_CLR_OFFSET 0x00000280U /**< Pending Clear
132 #define XSCUGIC_ACTIVE_OFFSET 0x00000300U /**< Active Status Register */
133 #define XSCUGIC_PRIORITY_OFFSET 0x00000400U /**< Priority Level Register */
134 #define XSCUGIC_SPI_TARGET_OFFSET 0x00000800U /**< SPI Target
135 Register 0x800-0x8FB */
136 #define XSCUGIC_INT_CFG_OFFSET 0x00000C00U /**< Interrupt Configuration
137 Register 0xC00-0xCFC */
138 #define XSCUGIC_PPI_STAT_OFFSET 0x00000D00U /**< PPI Status Register */
139 #define XSCUGIC_SPI_STAT_OFFSET 0x00000D04U /**< SPI Status Register
141 #define XSCUGIC_AHB_CONFIG_OFFSET 0x00000D80U /**< AHB Configuration
143 #define XSCUGIC_SFI_TRIG_OFFSET 0x00000F00U /**< Software Triggered
144 Interrupt Register */
145 #define XSCUGIC_PERPHID_OFFSET 0x00000FD0U /**< Peripheral ID Reg */
146 #define XSCUGIC_PCELLID_OFFSET 0x00000FF0U /**< Pcell ID Register */
149 /** @name Distributor Enable Register
150 * Controls if the distributor response to external interrupt inputs.
153 #define XSCUGIC_EN_INT_MASK 0x00000001U /**< Interrupt In Enable */
156 /** @name Interrupt Controller Type Register
159 #define XSCUGIC_LSPI_MASK 0x0000F800U /**< Number of Lockable
162 #define XSCUGIC_DOMAIN_MASK 0x00000400U /**< Number os Security domains*/
163 #define XSCUGIC_CPU_NUM_MASK 0x000000E0U /**< Number of CPU Interfaces */
164 #define XSCUGIC_NUM_INT_MASK 0x0000001FU /**< Number of Interrupt IDs */
167 /** @name Implementor ID Register
168 * Implementor and revision information.
171 #define XSCUGIC_REV_MASK 0x00FFF000U /**< Revision Number */
172 #define XSCUGIC_IMPL_MASK 0x00000FFFU /**< Implementor */
175 /** @name Interrupt Security Registers
176 * Each bit controls the security level of an interrupt, either secure or non
177 * secure. These registers can only be accessed using secure read and write.
178 * There are registers for each of the CPU interfaces at offset 0x080. A
179 * register set for the SPI interrupts is available to all CPU interfaces.
180 * There are up to 32 of these registers staring at location 0x084.
183 #define XSCUGIC_INT_NS_MASK 0x00000001U /**< Each bit corresponds to an
187 /** @name Enable Set Register
188 * Each bit controls the enabling of an interrupt, a 0 is disabled, a 1 is
189 * enabled. Writing a 0 has no effect. Use the ENABLE_CLR register to set a
191 * There are registers for each of the CPU interfaces at offset 0x100. With up
192 * to 8 registers aliased to the same address. A register set for the SPI
193 * interrupts is available to all CPU interfaces.
194 * There are up to 32 of these registers staring at location 0x104.
197 #define XSCUGIC_INT_EN_MASK 0x00000001U /**< Each bit corresponds to an
201 /** @name Enable Clear Register
202 * Each bit controls the disabling of an interrupt, a 0 is disabled, a 1 is
203 * enabled. Writing a 0 has no effect. Writing a 1 disables an interrupt and
204 * sets the corresponding bit to 0.
205 * There are registers for each of the CPU interfaces at offset 0x180. With up
206 * to 8 registers aliased to the same address.
207 * A register set for the SPI interrupts is available to all CPU interfaces.
208 * There are up to 32 of these registers staring at location 0x184.
211 #define XSCUGIC_INT_CLR_MASK 0x00000001U /**< Each bit corresponds to an
215 /** @name Pending Set Register
216 * Each bit controls the Pending or Active and Pending state of an interrupt, a
217 * 0 is not pending, a 1 is pending. Writing a 0 has no effect. Writing a 1 sets
218 * an interrupt to the pending state.
219 * There are registers for each of the CPU interfaces at offset 0x200. With up
220 * to 8 registers aliased to the same address.
221 * A register set for the SPI interrupts is available to all CPU interfaces.
222 * There are up to 32 of these registers staring at location 0x204.
225 #define XSCUGIC_PEND_SET_MASK 0x00000001U /**< Each bit corresponds to an
229 /** @name Pending Clear Register
230 * Each bit can clear the Pending or Active and Pending state of an interrupt, a
231 * 0 is not pending, a 1 is pending. Writing a 0 has no effect. Writing a 1
232 * clears the pending state of an interrupt.
233 * There are registers for each of the CPU interfaces at offset 0x280. With up
234 * to 8 registers aliased to the same address.
235 * A register set for the SPI interrupts is available to all CPU interfaces.
236 * There are up to 32 of these registers staring at location 0x284.
239 #define XSCUGIC_PEND_CLR_MASK 0x00000001U /**< Each bit corresponds to an
243 /** @name Active Status Register
244 * Each bit provides the Active status of an interrupt, a
245 * 0 is not Active, a 1 is Active. This is a read only register.
246 * There are registers for each of the CPU interfaces at offset 0x300. With up
247 * to 8 registers aliased to each address.
248 * A register set for the SPI interrupts is available to all CPU interfaces.
249 * There are up to 32 of these registers staring at location 0x380.
252 #define XSCUGIC_ACTIVE_MASK 0x00000001U /**< Each bit corresponds to an
256 /** @name Priority Level Register
257 * Each byte in a Priority Level Register sets the priority level of an
258 * interrupt. Reading the register provides the priority level of an interrupt.
259 * There are registers for each of the CPU interfaces at offset 0x400 through
260 * 0x41C. With up to 8 registers aliased to each address.
261 * 0 is highest priority, 0xFF is lowest.
262 * A register set for the SPI interrupts is available to all CPU interfaces.
263 * There are up to 255 of these registers staring at location 0x420.
266 #define XSCUGIC_PRIORITY_MASK 0x000000FFU /**< Each Byte corresponds to an
268 #define XSCUGIC_PRIORITY_MAX 0x000000FFU /**< Highest value of a priority
269 actually the lowest priority*/
272 /** @name SPI Target Register 0x800-0x8FB
273 * Each byte references a separate SPI and programs which of the up to 8 CPU
274 * interfaces are sent a Pending interrupt.
275 * There are registers for each of the CPU interfaces at offset 0x800 through
276 * 0x81C. With up to 8 registers aliased to each address.
277 * A register set for the SPI interrupts is available to all CPU interfaces.
278 * There are up to 255 of these registers staring at location 0x820.
280 * This driver does not support multiple CPU interfaces. These are included
281 * for complete documentation.
284 #define XSCUGIC_SPI_CPU7_MASK 0x00000080U /**< CPU 7 Mask*/
285 #define XSCUGIC_SPI_CPU6_MASK 0x00000040U /**< CPU 6 Mask*/
286 #define XSCUGIC_SPI_CPU5_MASK 0x00000020U /**< CPU 5 Mask*/
287 #define XSCUGIC_SPI_CPU4_MASK 0x00000010U /**< CPU 4 Mask*/
288 #define XSCUGIC_SPI_CPU3_MASK 0x00000008U /**< CPU 3 Mask*/
289 #define XSCUGIC_SPI_CPU2_MASK 0x00000004U /**< CPU 2 Mask*/
290 #define XSCUGIC_SPI_CPU1_MASK 0x00000002U /**< CPU 1 Mask*/
291 #define XSCUGIC_SPI_CPU0_MASK 0x00000001U /**< CPU 0 Mask*/
294 /** @name Interrupt Configuration Register 0xC00-0xCFC
295 * The interrupt configuration registers program an SFI to be active HIGH level
296 * sensitive or rising edge sensitive.
297 * Each bit pair describes the configuration for an INT_ID.
298 * SFI Read Only b10 always
299 * PPI Read Only depending on how the PPIs are configured.
300 * b01 Active HIGH level sensitive
301 * b11 Rising edge sensitive
302 * SPI LSB is read only.
303 * b01 Active HIGH level sensitive
304 * b11 Rising edge sensitive/
305 * There are registers for each of the CPU interfaces at offset 0xC00 through
306 * 0xC04. With up to 8 registers aliased to each address.
307 * A register set for the SPI interrupts is available to all CPU interfaces.
308 * There are up to 255 of these registers staring at location 0xC08.
311 #define XSCUGIC_INT_CFG_MASK 0x00000003U /**< */
314 /** @name PPI Status Register
315 * Enables an external AMBA master to access the status of the PPI inputs.
316 * A CPU can only read the status of its local PPI signals and cannot read the
317 * status for other CPUs.
318 * This register is aliased for each CPU interface.
321 #define XSCUGIC_PPI_C15_MASK 0x00008000U /**< PPI Status */
322 #define XSCUGIC_PPI_C14_MASK 0x00004000U /**< PPI Status */
323 #define XSCUGIC_PPI_C13_MASK 0x00002000U /**< PPI Status */
324 #define XSCUGIC_PPI_C12_MASK 0x00001000U /**< PPI Status */
325 #define XSCUGIC_PPI_C11_MASK 0x00000800U /**< PPI Status */
326 #define XSCUGIC_PPI_C10_MASK 0x00000400U /**< PPI Status */
327 #define XSCUGIC_PPI_C09_MASK 0x00000200U /**< PPI Status */
328 #define XSCUGIC_PPI_C08_MASK 0x00000100U /**< PPI Status */
329 #define XSCUGIC_PPI_C07_MASK 0x00000080U /**< PPI Status */
330 #define XSCUGIC_PPI_C06_MASK 0x00000040U /**< PPI Status */
331 #define XSCUGIC_PPI_C05_MASK 0x00000020U /**< PPI Status */
332 #define XSCUGIC_PPI_C04_MASK 0x00000010U /**< PPI Status */
333 #define XSCUGIC_PPI_C03_MASK 0x00000008U /**< PPI Status */
334 #define XSCUGIC_PPI_C02_MASK 0x00000004U /**< PPI Status */
335 #define XSCUGIC_PPI_C01_MASK 0x00000002U /**< PPI Status */
336 #define XSCUGIC_PPI_C00_MASK 0x00000001U /**< PPI Status */
339 /** @name SPI Status Register 0xd04-0xd7C
340 * Enables an external AMBA master to access the status of the SPI inputs.
341 * There are up to 63 registers if the maximum number of SPI inputs are
345 #define XSCUGIC_SPI_N_MASK 0x00000001U /**< Each bit corresponds to an SPI
349 /** @name AHB Configuration Register
350 * Provides the status of the CFGBIGEND input signal and allows the endianess
351 * of the GIC to be set.
354 #define XSCUGIC_AHB_END_MASK 0x00000004U /**< 0-GIC uses little Endian,
355 1-GIC uses Big Endian */
356 #define XSCUGIC_AHB_ENDOVR_MASK 0x00000002U /**< 0-Uses CFGBIGEND control,
357 1-use the AHB_END bit */
358 #define XSCUGIC_AHB_TIE_OFF_MASK 0x00000001U /**< State of CFGBIGEND */
362 /** @name Software Triggered Interrupt Register
363 * Controls issueing of software interrupts.
366 #define XSCUGIC_SFI_SELFTRIG_MASK 0x02010000U
367 #define XSCUGIC_SFI_TRIG_TRGFILT_MASK 0x03000000U /**< Target List filter
368 b00-Use the target List
369 b01-All CPUs except requester
372 #define XSCUGIC_SFI_TRIG_CPU_MASK 0x00FF0000U /**< CPU Target list */
373 #define XSCUGIC_SFI_TRIG_SATT_MASK 0x00008000U /**< 0= Use a secure interrupt */
374 #define XSCUGIC_SFI_TRIG_INTID_MASK 0x0000000FU /**< Set to the INTID
375 signaled to the CPU*/
378 /** @name CPU Interface Register Map
380 * Define the offsets from the base address for all CPU registers of the
381 * interrupt controller, some registers may be reserved in the hardware device.
384 #define XSCUGIC_CONTROL_OFFSET 0x00000000U /**< CPU Interface Control
386 #define XSCUGIC_CPU_PRIOR_OFFSET 0x00000004U /**< Priority Mask Reg */
387 #define XSCUGIC_BIN_PT_OFFSET 0x00000008U /**< Binary Point Register */
388 #define XSCUGIC_INT_ACK_OFFSET 0x0000000CU /**< Interrupt ACK Reg */
389 #define XSCUGIC_EOI_OFFSET 0x00000010U /**< End of Interrupt Reg */
390 #define XSCUGIC_RUN_PRIOR_OFFSET 0x00000014U /**< Running Priority Reg */
391 #define XSCUGIC_HI_PEND_OFFSET 0x00000018U /**< Highest Pending Interrupt
393 #define XSCUGIC_ALIAS_BIN_PT_OFFSET 0x0000001CU /**< Aliased non-Secure
394 Binary Point Register */
396 /**< 0x00000020 to 0x00000FBC are reserved and should not be read or written
401 /** @name Control Register
402 * CPU Interface Control register definitions
403 * All bits are defined here although some are not available in the non-secure
407 #define XSCUGIC_CNTR_SBPR_MASK 0x00000010U /**< Secure Binary Pointer,
408 0=separate registers,
409 1=both use bin_pt_s */
410 #define XSCUGIC_CNTR_FIQEN_MASK 0x00000008U /**< Use nFIQ_C for secure
413 1=Use FIQ for secure, IRQ for non*/
414 #define XSCUGIC_CNTR_ACKCTL_MASK 0x00000004U /**< Ack control for secure or non secure */
415 #define XSCUGIC_CNTR_EN_NS_MASK 0x00000002U /**< Non Secure enable */
416 #define XSCUGIC_CNTR_EN_S_MASK 0x00000001U /**< Secure enable, 0=Disabled, 1=Enabled */
419 /** @name Priority Mask Register
420 * Priority Mask register definitions
421 * The CPU interface does not send interrupt if the level of the interrupt is
422 * lower than the level of the register.
425 /*#define XSCUGIC_PRIORITY_MASK 0x000000FFU*/ /**< All interrupts */
428 /** @name Binary Point Register
429 * Binary Point register definitions
433 #define XSCUGIC_BIN_PT_MASK 0x00000007U /**< Binary point mask value
434 Value Secure Non-secure
446 /** @name Interrupt Acknowledge Register
447 * Interrupt Acknowledge register definitions
448 * Identifies the current Pending interrupt, and the CPU ID for software
451 #define XSCUGIC_ACK_INTID_MASK 0x000003FFU /**< Interrupt ID */
452 #define XSCUGIC_CPUID_MASK 0x00000C00U /**< CPU ID */
455 /** @name End of Interrupt Register
456 * End of Interrupt register definitions
457 * Allows the CPU to signal the GIC when it completes an interrupt service
460 #define XSCUGIC_EOI_INTID_MASK 0x000003FFU /**< Interrupt ID */
464 /** @name Running Priority Register
465 * Running Priority register definitions
466 * Identifies the interrupt priority level of the highest priority active
469 #define XSCUGIC_RUN_PRIORITY_MASK 0x000000FFU /**< Interrupt Priority */
473 * Highest Pending Interrupt register definitions
474 * Identifies the interrupt priority of the highest priority pending interupt
476 #define XSCUGIC_PEND_INTID_MASK 0x000003FFU /**< Pending Interrupt ID */
477 /*#define XSCUGIC_CPUID_MASK 0x00000C00U */ /**< CPU ID */
480 /***************** Macros (Inline Functions) Definitions *********************/
482 /****************************************************************************/
485 * Read the Interrupt Configuration Register offset for an interrupt id.
487 * @param InterruptID is the interrupt number.
489 * @return The 32-bit value of the offset
493 *****************************************************************************/
494 #define XSCUGIC_INT_CFG_OFFSET_CALC(InterruptID) \
495 ((u32)XSCUGIC_INT_CFG_OFFSET + (((InterruptID)/16U) * 4U))
497 /****************************************************************************/
500 * Read the Interrupt Priority Register offset for an interrupt id.
502 * @param InterruptID is the interrupt number.
504 * @return The 32-bit value of the offset
508 *****************************************************************************/
509 #define XSCUGIC_PRIORITY_OFFSET_CALC(InterruptID) \
510 ((u32)XSCUGIC_PRIORITY_OFFSET + (((InterruptID)/4U) * 4U))
512 /****************************************************************************/
515 * Read the SPI Target Register offset for an interrupt id.
517 * @param InterruptID is the interrupt number.
519 * @return The 32-bit value of the offset
523 *****************************************************************************/
524 #define XSCUGIC_SPI_TARGET_OFFSET_CALC(InterruptID) \
525 ((u32)XSCUGIC_SPI_TARGET_OFFSET + (((InterruptID)/4U) * 4U))
527 /****************************************************************************/
530 * Read the Interrupt Clear-Enable Register offset for an interrupt ID
532 * @param Register is the register offset for the clear/enable bank.
533 * @param InterruptID is the interrupt number.
535 * @return The 32-bit value of the offset
539 *****************************************************************************/
540 #define XSCUGIC_EN_DIS_OFFSET_CALC(Register, InterruptID) \
541 ((Register) + (((InterruptID)/32U) * 4U))
543 /****************************************************************************/
546 * Read the given Intc register.
548 * @param BaseAddress is the base address of the device.
549 * @param RegOffset is the register offset to be read
551 * @return The 32-bit value of the register
555 * u32 XScuGic_ReadReg(u32 BaseAddress, u32 RegOffset)
557 *****************************************************************************/
558 #define XScuGic_ReadReg(BaseAddress, RegOffset) \
559 (Xil_In32((BaseAddress) + (RegOffset)))
562 /****************************************************************************/
565 * Write the given Intc register.
567 * @param BaseAddress is the base address of the device.
568 * @param RegOffset is the register offset to be written
569 * @param Data is the 32-bit value to write to the register
575 * void XScuGic_WriteReg(u32 BaseAddress, u32 RegOffset, u32 Data)
577 *****************************************************************************/
578 #define XScuGic_WriteReg(BaseAddress, RegOffset, Data) \
579 (Xil_Out32(((BaseAddress) + (RegOffset)), ((u32)(Data))))
582 /****************************************************************************/
585 * Enable specific interrupt(s) in the interrupt controller.
587 * @param DistBaseAddress is the Distributor Register base address of the
589 * @param Int_Id is the ID of the interrupt source and should be in the
590 * range of 0 to XSCUGIC_MAX_NUM_INTR_INPUTS - 1
594 * @note C-style signature:
595 * void XScuGic_EnableIntr(u32 DistBaseAddress, u32 Int_Id)
597 *****************************************************************************/
598 #define XScuGic_EnableIntr(DistBaseAddress, Int_Id) \
599 XScuGic_WriteReg((DistBaseAddress), \
600 XSCUGIC_ENABLE_SET_OFFSET + (((Int_Id) / 32U) * 4U), \
601 (0x00000001U << ((Int_Id) % 32U)))
603 /****************************************************************************/
606 * Disable specific interrupt(s) in the interrupt controller.
608 * @param DistBaseAddress is the Distributor Register base address of the
610 * @param Int_Id is the ID of the interrupt source and should be in the
611 * range of 0 to XSCUGIC_MAX_NUM_INTR_INPUTS - 1
616 * @note C-style signature:
617 * void XScuGic_DisableIntr(u32 DistBaseAddress, u32 Int_Id)
619 *****************************************************************************/
620 #define XScuGic_DisableIntr(DistBaseAddress, Int_Id) \
621 XScuGic_WriteReg((DistBaseAddress), \
622 XSCUGIC_DISABLE_OFFSET + (((Int_Id) / 32U) * 4U), \
623 (0x00000001U << ((Int_Id) % 32U)))
626 /************************** Function Prototypes ******************************/
628 void XScuGic_DeviceInterruptHandler(void *DeviceId);
629 s32 XScuGic_DeviceInitialize(u32 DeviceId);
630 void XScuGic_RegisterHandler(u32 BaseAddress, s32 InterruptID,
631 Xil_InterruptHandler Handler, void *CallBackRef);
632 void XScuGic_SetPriTrigTypeByDistAddr(u32 DistBaseAddress, u32 Int_Id,
633 u8 Priority, u8 Trigger);
634 void XScuGic_GetPriTrigTypeByDistAddr(u32 DistBaseAddress, u32 Int_Id,
635 u8 *Priority, u8 *Trigger);
636 /************************** Variable Definitions *****************************/
641 #endif /* end of protection macro */