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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-23 09:50:39 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-23 15:18:44 +0200
commit8f8ccee0d9e1c3adfb1de484f26f6d9f6ff08708 (patch)
tree5dc76f7a4527b0a500fbf5ee91486b2780e47a1a /c/src/lib/libbsp/powerpc/shared
parentbsps: Move SPI drivers to bsps (diff)
downloadrtems-8f8ccee0d9e1c3adfb1de484f26f6d9f6ff08708.tar.bz2
bsps: Move interrupt controller support to bsps
This patch is a part of the BSP source reorganization. Update #3285.
Diffstat (limited to 'c/src/lib/libbsp/powerpc/shared')
-rw-r--r--c/src/lib/libbsp/powerpc/shared/irq/i8259.c149
-rw-r--r--c/src/lib/libbsp/powerpc/shared/irq/irq_init.c364
-rw-r--r--c/src/lib/libbsp/powerpc/shared/irq/openpic_i8259_irq.c331
-rw-r--r--c/src/lib/libbsp/powerpc/shared/openpic/openpic.c622
4 files changed, 0 insertions, 1466 deletions
diff --git a/c/src/lib/libbsp/powerpc/shared/irq/i8259.c b/c/src/lib/libbsp/powerpc/shared/irq/i8259.c
deleted file mode 100644
index 7363e87ba0..0000000000
--- a/c/src/lib/libbsp/powerpc/shared/irq/i8259.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * This file contains the implementation of the function described in irq.h
- * related to Intel 8259 Programmable Interrupt controller.
- *
- * Copyright (C) 1998, 1999 valette@crf.canon.fr
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <bsp.h>
-#include <bsp/irq.h>
-
-/*-------------------------------------------------------------------------+
-| Cache for 1st and 2nd PIC IRQ line's status (enabled or disabled) register.
-+--------------------------------------------------------------------------*/
-/*
- * lower byte is interrupt mask on the master PIC.
- * while upper bits are interrupt on the slave PIC.
- */
-volatile rtems_i8259_masks i8259s_cache = 0xfffb;
-
-/*-------------------------------------------------------------------------+
-| Function: BSP_irq_disable_at_i8259s
-| Description: Mask IRQ line in appropriate PIC chip.
-| Global Variables: i8259s_cache
-| Arguments: vector_offset - number of IRQ line to mask.
-| Returns: original state or -1 on error.
-+--------------------------------------------------------------------------*/
-int BSP_irq_disable_at_i8259s (const rtems_irq_number irqLine)
-{
- unsigned short mask;
- rtems_interrupt_level level;
- int rval;
-
- if ( ((int)irqLine < BSP_ISA_IRQ_LOWEST_OFFSET) ||
- ((int)irqLine > BSP_ISA_IRQ_MAX_OFFSET)
- )
- return -1;
-
- rtems_interrupt_disable(level);
-
- mask = 1 << irqLine;
- rval = i8259s_cache & mask ? 0 : 1;
- i8259s_cache |= mask;
-
- if (irqLine < 8)
- {
- outport_byte(PIC_MASTER_IMR_IO_PORT, i8259s_cache & 0xff);
- }
- else
- {
- outport_byte(PIC_SLAVE_IMR_IO_PORT, ((i8259s_cache & 0xff00) >> 8));
- }
- rtems_interrupt_enable(level);
-
- return rval;
-}
-
-/*-------------------------------------------------------------------------+
-| Function: BSP_irq_enable_at_i8259s
-| Description: Unmask IRQ line in appropriate PIC chip.
-| Global Variables: i8259s_cache
-| Arguments: irqLine - number of IRQ line to mask.
-| Returns: Nothing.
-+--------------------------------------------------------------------------*/
-int BSP_irq_enable_at_i8259s (const rtems_irq_number irqLine)
-{
- unsigned short mask;
- rtems_interrupt_level level;
-
- if ( ((int)irqLine < BSP_ISA_IRQ_LOWEST_OFFSET) ||
- ((int)irqLine > BSP_ISA_IRQ_MAX_OFFSET )
- )
- return 1;
-
- rtems_interrupt_disable(level);
-
- mask = ~(1 << irqLine);
- i8259s_cache &= mask;
-
- if (irqLine < 8)
- {
- outport_byte(PIC_MASTER_IMR_IO_PORT, i8259s_cache & 0xff);
- }
- else
- {
- outport_byte(PIC_SLAVE_IMR_IO_PORT, ((i8259s_cache & 0xff00) >> 8));
- }
- rtems_interrupt_enable(level);
-
- return 0;
-} /* mask_irq */
-
-int BSP_irq_enabled_at_i8259s (const rtems_irq_number irqLine)
-{
- unsigned short mask;
-
- if ( ((int)irqLine < BSP_ISA_IRQ_LOWEST_OFFSET) ||
- ((int)irqLine > BSP_ISA_IRQ_MAX_OFFSET)
- )
- return 1;
-
- mask = (1 << irqLine);
- return (~(i8259s_cache & mask));
-}
-
-/*-------------------------------------------------------------------------+
-| Function: BSP_irq_ack_at_i8259s
-| Description: Signal generic End Of Interrupt (EOI) to appropriate PIC.
-| Global Variables: None.
-| Arguments: irqLine - number of IRQ line to acknowledge.
-| Returns: Nothing.
-+--------------------------------------------------------------------------*/
-int BSP_irq_ack_at_i8259s (const rtems_irq_number irqLine)
-{
- if (irqLine >= 8) {
- outport_byte(PIC_MASTER_COMMAND_IO_PORT, SLAVE_PIC_EOSI);
- outport_byte(PIC_SLAVE_COMMAND_IO_PORT, (PIC_EOSI | (irqLine - 8)));
- }
- else {
- outport_byte(PIC_MASTER_COMMAND_IO_PORT, (PIC_EOSI | irqLine));
- }
-
- return 0;
-
-} /* ackIRQ */
-
-void BSP_i8259s_init(void)
-{
- /*
- * init master 8259 interrupt controller
- */
- outport_byte(PIC_MASTER_COMMAND_IO_PORT, 0x11); /* Start init sequence */
- outport_byte(PIC_MASTER_IMR_IO_PORT, 0x00);/* Vector base = 0 */
- outport_byte(PIC_MASTER_IMR_IO_PORT, 0x04);/* edge tiggered, Cascade (slave) on IRQ2 */
- outport_byte(PIC_MASTER_IMR_IO_PORT, 0x01);/* Select 8086 mode */
- outport_byte(PIC_MASTER_IMR_IO_PORT, 0xFB); /* Mask all except cascade */
- /*
- * init slave interrupt controller
- */
- outport_byte(PIC_SLAVE_COMMAND_IO_PORT, 0x11); /* Start init sequence */
- outport_byte(PIC_SLAVE_IMR_IO_PORT, 0x08);/* Vector base = 8 */
- outport_byte(PIC_SLAVE_IMR_IO_PORT, 0x02);/* edge triggered, Cascade (slave) on IRQ2 */
- outport_byte(PIC_SLAVE_IMR_IO_PORT, 0x01); /* Select 8086 mode */
- outport_byte(PIC_SLAVE_IMR_IO_PORT, 0xFF); /* Mask all */
-
-}
diff --git a/c/src/lib/libbsp/powerpc/shared/irq/irq_init.c b/c/src/lib/libbsp/powerpc/shared/irq/irq_init.c
deleted file mode 100644
index 1a44992a5b..0000000000
--- a/c/src/lib/libbsp/powerpc/shared/irq/irq_init.c
+++ /dev/null
@@ -1,364 +0,0 @@
-/* irq_init.c
- *
- * This file contains the implementation of rtems initialization
- * related to interrupt handling.
- *
- * CopyRight (C) 1999 valette@crf.canon.fr
- *
- * Enhanced by Jay Kulpinski <jskulpin@eng01.gdds.com>
- * to make it valid for MVME2300 Motorola boards.
- *
- * Till Straumann <strauman@slac.stanford.edu>, 12/20/2001:
- * Use the new interface to openpic_init
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <libcpu/io.h>
-#include <libcpu/spr.h>
-#include <bsp/pci.h>
-#include <bsp/residual.h>
-#include <bsp/irq.h>
-#if BSP_PCI_IRQ_NUMBER > 0
-#include <bsp/openpic.h>
-#endif
-#include <bsp/irq_supp.h>
-#include <bsp.h>
-#include <bsp/motorola.h>
-#include <rtems/bspIo.h>
-
-typedef struct {
- unsigned char bus; /* few chance the PCI/ISA bridge is not on first bus but ... */
- unsigned char device;
- unsigned char function;
-} pci_isa_bridge_device;
-
-pci_isa_bridge_device* via_82c586 = 0;
-#ifndef qemu
-static pci_isa_bridge_device bridge;
-#endif
-
-/*
- * default methods
- */
-static void nop_hdl(rtems_irq_hdl_param ignored)
-{
-}
-
-static void nop_irq_enable(const struct __rtems_irq_connect_data__*ignored)
-{
-}
-
-static int irq_is_connected(const struct __rtems_irq_connect_data__*ignored)
-{
- return 0;
-}
-
-
-static rtems_irq_connect_data rtemsIrq[BSP_IRQ_NUMBER];
-static rtems_irq_global_settings initial_config;
-static rtems_irq_connect_data defaultIrq = {
- 0, /* vector */
- nop_hdl, /* hdl */
- NULL, /* handle */
- nop_irq_enable, /* on */
- nop_irq_enable, /* off */
- irq_is_connected /* isOn */
-#ifdef BSP_SHARED_HANDLER_SUPPORT
- , NULL /* next_handler */
-#endif
-};
-static rtems_irq_prio irqPrioTable[BSP_IRQ_NUMBER]={
- /*
- * actual priorities for interrupt :
- * 0 means that only current interrupt is masked
- * 255 means all other interrupts are masked
- */
- /*
- * ISA interrupts.
- * The second entry has a priority of 255 because
- * it is the slave pic entry and should always remain
- * unmasked.
- */
- 0,0,
- 255,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-#if BSP_PCI_IRQ_NUMBER > 0
- /*
- * PCI Interrupts
- */
- 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, /* for raven prio 0 means unactive... */
-#endif
- /*
- * Processor exceptions handled as interrupts
- */
- 0
-};
-
-#if BSP_PCI_IRQ_NUMBER > 0
-#if defined(mvme2100)
-static unsigned char mvme2100_openpic_initpolarities[16] = {
- 0, /* Not used - should be disabled */
- 0, /* DEC21143 Controller */
- 0, /* PMC/PC-MIP Type I Slot 0 */
- 0, /* PC-MIP Type I Slot 1 */
- 0, /* PC-MIP Type II Slot 0 */
- 0, /* PC-MIP Type II Slot 1 */
- 0, /* Not used - should be disabled */
- 0, /* PCI Expansion Interrupt A/Universe II (LINT0) */
- 0, /* PCI Expansion Interrupt B/Universe II (LINT1) */
- 0, /* PCI Expansion Interrupt C/Universe II (LINT2) */
- 0, /* PCI Expansion Interrupt D/Universe II (LINT3) */
- 0, /* Not used - should be disabled */
- 0, /* Not used - should be disabled */
- 1, /* 16550 UART */
- 0, /* Front panel Abort Switch */
- 0, /* RTC IRQ */
-};
-
-static unsigned char mvme2100_openpic_initsenses[] = {
- 0, /* Not used - should be disabled */
- 1, /* DEC21143 Controller */
- 1, /* PMC/PC-MIP Type I Slot 0 */
- 1, /* PC-MIP Type I Slot 1 */
- 1, /* PC-MIP Type II Slot 0 */
- 1, /* PC-MIP Type II Slot 1 */
- 0, /* Not used - should be disabled */
- 1, /* PCI Expansion Interrupt A/Universe II (LINT0) */
- 1, /* PCI Expansion Interrupt B/Universe II (LINT1) */
- 1, /* PCI Expansion Interrupt C/Universe II (LINT2) */
- 1, /* PCI Expansion Interrupt D/Universe II (LINT3) */
- 0, /* Not used - should be disabled */
- 0, /* Not used - should be disabled */
- 1, /* 16550 UART */
- 0, /* Front panel Abort Switch */
- 1, /* RTC IRQ */
-};
-#else
-static unsigned char mcp750_openpic_initpolarities[16] = {
- 1, /* 8259 cascade */
- 0, /* all the rest of them */
-};
-
-static unsigned char mcp750_openpic_initsenses[] = {
- 1, /* MCP750_INT_PCB(8259) */
- 0, /* MCP750_INT_FALCON_ECC_ERR */
- 1, /* MCP750_INT_PCI_ETHERNET */
- 1, /* MCP750_INT_PCI_PMC */
- 1, /* MCP750_INT_PCI_WATCHDOG_TIMER1 */
- 1, /* MCP750_INT_PCI_PRST_SIGNAL */
- 1, /* MCP750_INT_PCI_FALL_SIGNAL */
- 1, /* MCP750_INT_PCI_DEG_SIGNAL */
- 1, /* MCP750_INT_PCI_BUS1_INTA */
- 1, /* MCP750_INT_PCI_BUS1_INTB */
- 1, /* MCP750_INT_PCI_BUS1_INTC */
- 1, /* MCP750_INT_PCI_BUS1_INTD */
- 1, /* MCP750_INT_PCI_BUS2_INTA */
- 1, /* MCP750_INT_PCI_BUS2_INTB */
- 1, /* MCP750_INT_PCI_BUS2_INTC */
- 1, /* MCP750_INT_PCI_BUS2_INTD */
-};
-#endif
-#endif
-
-#if BSP_ISA_IRQ_NUMBER > 0 && !defined(qemu)
-void VIA_isa_bridge_interrupts_setup(void)
-{
- pci_isa_bridge_device pci_dev;
- uint32_t temp;
- unsigned char tmp;
- unsigned char maxBus;
- unsigned found = 0;
-
- maxBus = pci_bus_count();
- pci_dev.function = 0; /* Assumes the bidge is the first function */
-
- for (pci_dev.bus = 0; pci_dev.bus < maxBus; pci_dev.bus++) {
-#ifdef SCAN_PCI_PRINT
- printk("isa_bridge_interrupts_setup: Scanning bus %d\n", pci_dev.bus);
-#endif
- for (pci_dev.device = 0; pci_dev.device < PCI_MAX_DEVICES; pci_dev.device++) {
-#ifdef SCAN_PCI_PRINT
- printk("isa_bridge_interrupts_setup: Scanning device %d\n", pci_dev.device);
-#endif
- pci_read_config_dword(pci_dev.bus, pci_dev.device, pci_dev.function,
- PCI_VENDOR_ID, &temp);
-#ifdef SCAN_PCI_PRINT
- printk("Vendor/device = %x\n", temp);
-#endif
- if ((temp == (((unsigned short) PCI_VENDOR_ID_VIA) | (PCI_DEVICE_ID_VIA_82C586_0 << 16)))
- ) {
- bridge = pci_dev;
- via_82c586 = &bridge;
-#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
- /*
- * Should print : bus = 0, device = 11, function = 0 on a MCP750.
- */
- printk("Via PCI/ISA bridge found at bus = %d, device = %d, function = %d\n",
- via_82c586->bus,
- via_82c586->device,
- via_82c586->function);
-#endif
- found = 1;
- goto loop_exit;
-
- }
- }
- }
-loop_exit:
- if (!found) rtems_panic("VIA_82C586 PCI/ISA bridge not found!n");
-
- tmp = inb(0x810);
- if ( !(tmp & 0x2)) {
-#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
- printk("This is a second generation MCP750 board\n");
- printk("We must reprogram the PCI/ISA bridge...\n");
-#endif
- pci_read_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
- 0x47, &tmp);
-#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
- printk(" PCI ISA bridge control2 = %x\n", (unsigned) tmp);
-#endif
- /*
- * Enable 4D0/4D1 ISA interrupt level/edge config registers
- */
- tmp |= 0x20;
- pci_write_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
- 0x47, tmp);
- /*
- * Now program the ISA interrupt edge/level
- */
- tmp = ELCRS_INT9_LVL | ELCRS_INT10_LVL | ELCRS_INT11_LVL;
- outb(tmp, ISA8259_S_ELCR);
- tmp = ELCRM_INT5_LVL;
- outb(tmp, ISA8259_M_ELCR);
- /*
- * Set the Interrupt inputs to non-inverting level interrupt
- */
- pci_read_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
- 0x54, &tmp);
-#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
- printk(" PCI ISA bridge PCI/IRQ Edge/Level Select = %x\n", (unsigned) tmp);
-#endif
- tmp = 0;
- pci_write_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
- 0x54, tmp);
- }
- else {
-#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
- printk("This is a first generation MCP750 board\n");
- printk("We just show the actual value used by PCI/ISA bridge\n");
-#endif
- pci_read_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
- 0x47, &tmp);
-#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
- printk(" PCI ISA bridge control2 = %x\n", (unsigned) tmp);
-#endif
- /*
- * Show the Interrupt inputs inverting/non-inverting level status
- */
- pci_read_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
- 0x54, &tmp);
-#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
- printk(" PCI ISA bridge PCI/IRQ Edge/Level Select = %x\n", (unsigned) tmp);
-#endif
- }
-}
-#endif
-
- /*
- * This code assumes the exceptions management setup has already
- * been done. We just need to replace the exceptions that will
- * be handled like interrupt. On mcp750/mpc750 and many PPC processors
- * this means the decrementer exception and the external exception.
- */
-void BSP_rtems_irq_mng_init(unsigned cpuId)
-{
-#if BSP_ISA_IRQ_NUMBER > 0 && !defined(mvme2100)
- int known_cpi_isa_bridge = 0;
-#endif
- int i;
-
- /*
- * First initialize the Interrupt management hardware
- */
-#if defined(mvme2100)
-#ifdef TRACE_IRQ_INIT
- printk("Going to initialize EPIC interrupt controller (openpic compliant)\n");
-#endif
- /* EPIC sources don't start at the regular place; define appropriate offset
- * prior to initializing the PIC.
- */
- openpic_init(1, mvme2100_openpic_initpolarities, mvme2100_openpic_initsenses, 16, 16, BSP_bus_frequency);
-#else
-#if BSP_PCI_IRQ_NUMBER > 0
-#ifdef TRACE_IRQ_INIT
- printk("Going to initialize raven interrupt controller (openpic compliant)\n");
-#endif
- openpic_init(1, mcp750_openpic_initpolarities, mcp750_openpic_initsenses, 0, 0, 0);
-#ifdef TRACE_IRQ_INIT
- printk("Going to initialize the PCI/ISA bridge IRQ related setting (VIA 82C586)\n");
-#endif
-#endif
-
-#if BSP_ISA_IRQ_NUMBER > 0
- if ( currentBoard == MESQUITE ) {
-#ifndef qemu
- VIA_isa_bridge_interrupts_setup();
-#endif
- known_cpi_isa_bridge = 1;
- }
- if ( currentBoard == MVME_2300 ) {
- /* nothing to do for W83C553 bridge */
- known_cpi_isa_bridge = 1;
- }
- if ( currentBoard == MTX_WO_PP || currentBoard == MTX_W_PP ) {
- /* W83C554, don't to anything at the moment. gregm 11/6/2002 */
- known_cpi_isa_bridge = 1;
- }
-
- if (!known_cpi_isa_bridge) {
- printk("Please add code for PCI/ISA bridge init to libbsp/powerpc/shared/irq/irq_init.c\n");
- printk("If your card works correctly please add a test and set known_cpi_isa_bridge to true\n");
- printk("currentBoard = %i\n", currentBoard);
- }
-#ifdef TRACE_IRQ_INIT
- printk("Going to initialize the ISA PC legacy IRQ management hardware\n");
-#endif
- BSP_i8259s_init();
-#endif
-
-#endif
-
- /*
- * Initialize RTEMS management interrupt table
- */
- /*
- * re-init the rtemsIrq table
- */
- for (i = 0; i < BSP_IRQ_NUMBER; i++) {
- rtemsIrq[i] = defaultIrq;
- rtemsIrq[i].name = i;
- }
- /*
- * Init initial Interrupt management config
- */
- initial_config.irqNb = BSP_IRQ_NUMBER;
- initial_config.defaultEntry = defaultIrq;
- initial_config.irqHdlTbl = rtemsIrq;
- initial_config.irqBase = BSP_LOWEST_OFFSET;
- initial_config.irqPrioTbl = irqPrioTable;
-
- if (!BSP_rtems_irq_mngt_set(&initial_config)) {
- /*
- * put something here that will show the failure...
- */
- rtems_panic("Unable to initialize RTEMS interrupt Management!!! System locked\n");
- }
-
-#ifdef TRACE_IRQ_INIT
- printk("RTEMS IRQ management is now operational\n");
-#endif
-}
diff --git a/c/src/lib/libbsp/powerpc/shared/irq/openpic_i8259_irq.c b/c/src/lib/libbsp/powerpc/shared/irq/openpic_i8259_irq.c
deleted file mode 100644
index 4a9c393f7f..0000000000
--- a/c/src/lib/libbsp/powerpc/shared/irq/openpic_i8259_irq.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/*
- *
- * This file contains the i8259/openpic-specific implementation of
- * the function described in irq.h
- *
- * Copyright (C) 1998, 1999 valette@crf.canon.fr
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <stdlib.h>
-
-#include <bsp.h>
-#include <bsp/irq.h>
-#include <bsp/irq_supp.h>
-#ifndef BSP_HAS_NO_VME
-#include <bsp/VMEConfig.h>
-#endif
-#if BSP_PCI_IRQ_NUMBER > 0
-#include <bsp/openpic.h>
-#endif
-#include <libcpu/io.h>
-#include <bsp/vectors.h>
-#include <stdlib.h>
-
-#include <rtems/bspIo.h> /* for printk */
-
-#ifndef qemu
-#define RAVEN_INTR_ACK_REG 0xfeff0030
-#else
-#define RAVEN_INTR_ACK_REG 0xbffffff0
-#endif
-
-#if BSP_ISA_IRQ_NUMBER > 0
-/*
- * pointer to the mask representing the additionnal irq vectors
- * that must be disabled when a particular entry is activated.
- * They will be dynamically computed from the priority table given
- * in BSP_rtems_irq_mngt_set();
- * CAUTION : this table is accessed directly by interrupt routine
- * prologue.
- */
-rtems_i8259_masks irq_mask_or_tbl[BSP_IRQ_NUMBER];
-#endif
-
-/*
- * default handler connected on each irq after bsp initialization
- */
-static rtems_irq_connect_data default_rtems_entry;
-
-static rtems_irq_connect_data* rtems_hdl_tbl;
-
-#if BSP_ISA_IRQ_NUMBER > 0
-/*
- * Check if IRQ is an ISA IRQ
- */
-static inline int is_isa_irq(const rtems_irq_number irqLine)
-{
- return (((int) irqLine <= BSP_ISA_IRQ_MAX_OFFSET) &&
- ((int) irqLine >= BSP_ISA_IRQ_LOWEST_OFFSET)
- );
-}
-#endif
-
-#if BSP_PCI_IRQ_NUMBER > 0
-/*
- * Check if IRQ is an OPENPIC IRQ
- */
-static inline int is_pci_irq(const rtems_irq_number irqLine)
-{
- return OpenPIC && (((int) irqLine <= BSP_PCI_IRQ_MAX_OFFSET) &&
- ((int) irqLine >= BSP_PCI_IRQ_LOWEST_OFFSET)
- );
-}
-#endif
-
-/*
- * ------------------------ RTEMS Irq helper functions ----------------
- */
-
-#if BSP_ISA_IRQ_NUMBER > 0
-/*
- * Caution : this function assumes the variable "*config"
- * is already set and that the tables it contains are still valid
- * and accessible.
- */
-static void compute_i8259_masks_from_prio (rtems_irq_global_settings* config)
-{
- int i;
- int j;
- /*
- * Always mask at least current interrupt to prevent re-entrance
- */
- for (i=BSP_ISA_IRQ_LOWEST_OFFSET; i < BSP_ISA_IRQ_LOWEST_OFFSET + BSP_ISA_IRQ_NUMBER; i++) {
- * ((unsigned short*) &irq_mask_or_tbl[i]) = (1 << i);
- for (j = BSP_ISA_IRQ_LOWEST_OFFSET; j < BSP_ISA_IRQ_LOWEST_OFFSET + BSP_ISA_IRQ_NUMBER; j++) {
- /*
- * Mask interrupts at i8259 level that have a lower priority
- */
- if (config->irqPrioTbl [i] > config->irqPrioTbl [j]) {
- * ((unsigned short*) &irq_mask_or_tbl[i]) |= (1 << j);
- }
- }
- }
-}
-#endif
-
-void
-BSP_enable_irq_at_pic(const rtems_irq_number name)
-{
-#if BSP_ISA_IRQ_NUMBER > 0
- if (is_isa_irq(name)) {
- /*
- * Enable interrupt at PIC level
- */
- BSP_irq_enable_at_i8259s ((int) name - BSP_ISA_IRQ_LOWEST_OFFSET);
- }
-#endif
-
-#if BSP_PCI_IRQ_NUMBER > 0
- if (is_pci_irq(name)) {
- /*
- * Enable interrupt at OPENPIC level
- */
- openpic_enable_irq ((int) name - BSP_PCI_IRQ_LOWEST_OFFSET);
- }
-#endif
-}
-
-int
-BSP_disable_irq_at_pic(const rtems_irq_number name)
-{
-#if BSP_ISA_IRQ_NUMBER > 0
- if (is_isa_irq(name)) {
- /*
- * disable interrupt at PIC level
- */
- return BSP_irq_disable_at_i8259s ((int) name - BSP_ISA_IRQ_LOWEST_OFFSET);
- }
-#endif
-#if BSP_PCI_IRQ_NUMBER > 0
- if (is_pci_irq(name)) {
- /*
- * disable interrupt at OPENPIC level
- */
- return openpic_disable_irq ((int) name - BSP_PCI_IRQ_LOWEST_OFFSET);
- }
-#endif
- return -1;
-}
-
-/*
- * RTEMS Global Interrupt Handler Management Routines
- */
-int BSP_setup_the_pic(rtems_irq_global_settings* config)
-{
- int i;
- /*
- * Store various code accelerators
- */
- default_rtems_entry = config->defaultEntry;
- rtems_hdl_tbl = config->irqHdlTbl;
-
- /*
- * set up internal tables used by rtems interrupt prologue
- */
-
-#if BSP_ISA_IRQ_NUMBER > 0
- /*
- * start with ISA IRQ
- */
- compute_i8259_masks_from_prio (config);
-
- for (i=BSP_ISA_IRQ_LOWEST_OFFSET; i < BSP_ISA_IRQ_LOWEST_OFFSET + BSP_ISA_IRQ_NUMBER; i++) {
- if (rtems_hdl_tbl[i].hdl != default_rtems_entry.hdl) {
- BSP_irq_enable_at_i8259s (i);
- }
- else {
- BSP_irq_disable_at_i8259s (i);
- }
- }
-
- if ( BSP_ISA_IRQ_NUMBER > 0 ) {
- /*
- * must enable slave pic anyway
- */
- BSP_irq_enable_at_i8259s (2);
- }
-#endif
-
-#if BSP_PCI_IRQ_NUMBER > 0
- if ( ! OpenPIC )
- return 1;
- /*
- * continue with PCI IRQ
- */
- for (i=BSP_PCI_IRQ_LOWEST_OFFSET; i < BSP_PCI_IRQ_LOWEST_OFFSET + BSP_PCI_IRQ_NUMBER ; i++) {
- /*
- * Note that openpic_set_priority() sets the TASK priority of the PIC
- */
- openpic_set_source_priority(i - BSP_PCI_IRQ_LOWEST_OFFSET,
- config->irqPrioTbl[i]);
- if (rtems_hdl_tbl[i].hdl != default_rtems_entry.hdl) {
- openpic_enable_irq ((int) i - BSP_PCI_IRQ_LOWEST_OFFSET);
- }
- else {
- openpic_disable_irq ((int) i - BSP_PCI_IRQ_LOWEST_OFFSET);
- }
- }
-
-#ifdef BSP_PCI_ISA_BRIDGE_IRQ
- /*
- * Must enable PCI/ISA bridge IRQ
- */
- openpic_enable_irq (BSP_PCI_ISA_BRIDGE_IRQ);
-#endif
-#endif
-
- return 1;
-}
-
-int _BSP_vme_bridge_irq = -1;
-
-unsigned BSP_spuriousIntr = 0;
-
-/*
- * High level IRQ handler called from shared_raw_irq_code_entry
- */
-int C_dispatch_irq_handler (BSP_Exception_frame *frame, unsigned int excNum)
-{
- register unsigned int irq;
-#if BSP_ISA_IRQ_NUMBER > 0
- register unsigned isaIntr; /* boolean */
- register unsigned oldMask = 0; /* old isa pic masks */
- register unsigned newMask; /* new isa pic masks */
-#endif
-
- if (excNum == ASM_DEC_VECTOR) {
-
- bsp_irq_dispatch_list(rtems_hdl_tbl, BSP_DECREMENTER, default_rtems_entry.hdl);
-
- return 0;
-
- }
-
-#if BSP_PCI_IRQ_NUMBER > 0
- if ( OpenPIC ) {
- irq = openpic_irq(0);
- if (irq == OPENPIC_VEC_SPURIOUS) {
- ++BSP_spuriousIntr;
- return 0;
- }
-
- /* some BSPs might want to use a different numbering... */
- irq = irq - OPENPIC_VEC_SOURCE + BSP_PCI_IRQ_LOWEST_OFFSET;
- } else {
-#if BSP_ISA_IRQ_NUMBER > 0
-#ifdef BSP_PCI_ISA_BRIDGE_IRQ
- irq = BSP_PCI_ISA_BRIDGE_IRQ;
-#else
-#error "Configuration Error -- BSP with ISA + PCI IRQs MUST define BSP_PCI_ISA_BRIDGE_IRQ"
-#endif
-#else
- rtems_panic("MUST have an OpenPIC if BSP has PCI IRQs but no ISA IRQs");
- /* rtems_panic() never returns but the 'return' statement silences
- * a compiler warning about 'irq' possibly being used w/o initialization.
- */
- return -1;
-#endif
- }
-#endif
-
-#if BSP_ISA_IRQ_NUMBER > 0
-#ifdef BSP_PCI_ISA_BRIDGE_IRQ
-#if 0 == BSP_PCI_IRQ_NUMBER
-#error "Configuration Error -- BSP w/o PCI IRQs MUST NOT define BSP_PCI_ISA_BRIDGE_IRQ"
-#endif
- isaIntr = (irq == BSP_PCI_ISA_BRIDGE_IRQ);
-#else
- isaIntr = 1;
-#endif
- if (isaIntr) {
- /*
- * Acknowledge and read 8259 vector
- */
- irq = (unsigned int) (*(unsigned char *) RAVEN_INTR_ACK_REG);
- /*
- * store current PIC mask
- */
- oldMask = i8259s_cache;
- newMask = oldMask | irq_mask_or_tbl [irq];
- i8259s_cache = newMask;
- outport_byte(PIC_MASTER_IMR_IO_PORT, i8259s_cache & 0xff);
- outport_byte(PIC_SLAVE_IMR_IO_PORT, ((i8259s_cache & 0xff00) >> 8));
- BSP_irq_ack_at_i8259s (irq);
-#if BSP_PCI_IRQ_NUMBER > 0
- if ( OpenPIC )
- openpic_eoi(0);
-#endif
- }
-#endif
-
- /* dispatch handlers */
- bsp_irq_dispatch_list(rtems_hdl_tbl, irq, default_rtems_entry.hdl);
-
-#if BSP_ISA_IRQ_NUMBER > 0
- if (isaIntr) {
- i8259s_cache = oldMask;
- outport_byte(PIC_MASTER_IMR_IO_PORT, i8259s_cache & 0xff);
- outport_byte(PIC_SLAVE_IMR_IO_PORT, ((i8259s_cache & 0xff00) >> 8));
- }
- else
-#endif
- {
-#if BSP_PCI_IRQ_NUMBER > 0
-#ifdef BSP_PCI_VME_DRIVER_DOES_EOI
- /* leave it to the VME bridge driver to do EOI, so
- * it can re-enable the openpic while handling
- * VME interrupts (-> VME priorities in software)
- */
- if (_BSP_vme_bridge_irq != irq && OpenPIC)
-#endif
- openpic_eoi(0);
-#else
- do {} while (0);
-#endif
- }
- return 0;
-}
diff --git a/c/src/lib/libbsp/powerpc/shared/openpic/openpic.c b/c/src/lib/libbsp/powerpc/shared/openpic/openpic.c
deleted file mode 100644
index 556014964b..0000000000
--- a/c/src/lib/libbsp/powerpc/shared/openpic/openpic.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/*
- * openpic.c -- OpenPIC Interrupt Handling
- *
- * Copyright (C) 1997 Geert Uytterhoeven
- *
- * Modified to compile in RTEMS development environment
- * by Eric Valette
- *
- * Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-/*
- * Note: Interprocessor Interrupt (IPI) and Timer support is incomplete
- */
-
-#include <rtems.h>
-#include <bsp.h>
-#include <rtems/bspIo.h>
-#include <bsp/openpic.h>
-#include <rtems/pci.h>
-#include <libcpu/io.h>
-#include <libcpu/byteorder.h>
-#include <rtems/bspIo.h>
-#include <inttypes.h>
-
-#ifndef NULL
-#define NULL 0
-#endif
-#define REGISTER_DEBUG
-#undef REGISTER_DEBUG
-
-volatile struct OpenPIC *OpenPIC = NULL;
-
-static unsigned int NumProcessors;
-static unsigned int NumSources;
-
-static unsigned int openpic_eoi_delay = 0;
-static int openpic_src_offst = 0;
-#define SOURCE(irq) Source[ (irq) + openpic_src_offst ]
-
- /*
- * Accesses to the current processor's registers
- */
-
-#define THIS_CPU Processor[cpu]
-#define CHECK_THIS_CPU check_arg_cpu(cpu)
-
- /*
- * Sanity checks
- */
-
-#if 1
-/* This software deliberately uses non-zero values to the method
- * __builtin_return_address() and we want to avoid the GCC warning.
- */
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wframe-address"
-#define check_arg_ipi(ipi) \
- if (ipi < 0 || ipi >= OPENPIC_NUM_IPI) \
- printk("openpic.c:%d: illegal ipi %d\n", __LINE__, ipi);
-#define check_arg_timer(timer) \
- if (timer < 0 || timer >= OPENPIC_NUM_TIMERS) \
- printk("openpic.c:%d: illegal timer %d\n", __LINE__, timer);
-#define check_arg_vec(vec) \
- if (vec < 0 || vec >= OPENPIC_NUM_VECTORS) \
- printk("openpic.c:%d: illegal vector %d\n", __LINE__, vec);
-#define check_arg_pri(pri) \
- if (pri < 0 || pri >= OPENPIC_NUM_PRI) \
- printk("openpic.c:%d: illegal priority %d\n", __LINE__, pri);
-#define check_arg_irq(irq) \
- if (irq < 0 || irq >= NumSources) \
- printk("openpic.c:%d: illegal irq %d from 0x%08" PRIxPTR ",[0x%08" PRIxPTR "],[[0x%08" PRIxPTR "]]\n", \
- __LINE__, irq, (uintptr_t) __builtin_return_address(0), \
- (uintptr_t) __builtin_return_address(1), (uintptr_t) __builtin_return_address(2) \
- );
-#define check_arg_cpu(cpu) \
- if (cpu < 0 || cpu >= NumProcessors) \
- printk("openpic.c:%d: illegal cpu %d\n", __LINE__, cpu);
-#else
-#define check_arg_ipi(ipi) do {} while (0)
-#define check_arg_timer(timer) do {} while (0)
-#define check_arg_vec(vec) do {} while (0)
-#define check_arg_pri(pri) do {} while (0)
-#define check_arg_irq(irq) do {} while (0)
-#define check_arg_cpu(cpu) do {} while (0)
-#endif
-
- /*
- * I/O functions
- */
-
-static inline unsigned int openpic_read(volatile unsigned int *addr)
-{
- unsigned int val;
-
-#ifdef BSP_OPEN_PIC_BIG_ENDIAN
- val = in_be32((volatile uint32_t *)addr);
-#else
- val = in_le32((volatile uint32_t *)addr);
-#endif
-#ifdef REGISTER_DEBUG
- printk("openpic_read(0x%08x) = 0x%08x\n", (unsigned int)addr, val);
-#endif
- return val;
-}
-
-static inline void openpic_write(volatile unsigned int *addr, unsigned int val)
-{
-#ifdef REGISTER_DEBUG
- printk("openpic_write(0x%08x, 0x%08x)\n", (unsigned int)addr, val);
-#endif
-#ifdef BSP_OPEN_PIC_BIG_ENDIAN
- out_be32((volatile uint32_t *)addr, val);
-#else
- out_le32((volatile uint32_t *)addr, val);
-#endif
-}
-
-static inline unsigned int openpic_readfield(volatile unsigned int *addr, unsigned int mask)
-{
- unsigned int val = openpic_read(addr);
- return val & mask;
-}
-
-static inline void openpic_writefield(volatile unsigned int *addr, unsigned int mask,
- unsigned int field)
-{
- unsigned int val = openpic_read(addr);
- openpic_write(addr, (val & ~mask) | (field & mask));
-}
-
-static inline void openpic_clearfield(volatile unsigned int *addr, unsigned int mask)
-{
- openpic_writefield(addr, mask, 0);
-}
-
-static inline void openpic_setfield(volatile unsigned int *addr, unsigned int mask)
-{
- openpic_writefield(addr, mask, mask);
-}
-
- /*
- * Update a Vector/Priority register in a safe manner. The interrupt will
- * be disabled.
- */
-
-static void openpic_safe_writefield(volatile unsigned int *addr, unsigned int mask,
- unsigned int field)
-{
- openpic_setfield(addr, OPENPIC_MASK);
- /* wait until it's not in use */
- while (openpic_read(addr) & OPENPIC_ACTIVITY);
- openpic_writefield(addr, mask | OPENPIC_MASK, field | OPENPIC_MASK);
-}
-
-/* -------- Global Operations ---------------------------------------------- */
-
- /*
- * Initialize the OpenPIC
- *
- * Add some kludge to use the Motorola Raven OpenPIC which does not
- * report vendor and device id, and gets the wrong number of interrupts.
- * (Motorola did a great job on that one!)
- *
- * T. Straumann, 12/20/2001: polarities and senses are now passed as
- * parameters, eliminated global vars.
- * IRQ0 is no longer treated specially.
- */
-
-void openpic_init(int main_pic, unsigned char *polarities, unsigned char *senses, int num_sources, int source_offset, unsigned long epic_freq)
-{
- unsigned int t, i;
- unsigned int vendorid, devid, stepping, timerfreq;
- const char *version, *vendor, *device;
-
- if (!OpenPIC)
- rtems_panic("No OpenPIC found");
-
- t = openpic_read(&OpenPIC->Global.Feature_Reporting0);
- switch (t & OPENPIC_FEATURE_VERSION_MASK) {
- case 1:
- version = "1.0";
- break;
- case 2:
- version = "1.2";
- break;
- default:
- version = "?";
- break;
- }
- NumProcessors = ((t & OPENPIC_FEATURE_LAST_PROCESSOR_MASK) >>
- OPENPIC_FEATURE_LAST_PROCESSOR_SHIFT) + 1;
- NumSources = ((t & OPENPIC_FEATURE_LAST_SOURCE_MASK) >>
- OPENPIC_FEATURE_LAST_SOURCE_SHIFT) + 1;
- t = openpic_read(&OpenPIC->Global.Vendor_Identification);
-
- vendorid = t & OPENPIC_VENDOR_ID_VENDOR_ID_MASK;
- devid = (t & OPENPIC_VENDOR_ID_DEVICE_ID_MASK) >>
- OPENPIC_VENDOR_ID_DEVICE_ID_SHIFT;
- stepping = (t & OPENPIC_VENDOR_ID_STEPPING_MASK) >>
- OPENPIC_VENDOR_ID_STEPPING_SHIFT;
-
- /* Kludge for the Raven */
-/*
- pci_read_config_dword(0, 0, 0, 0, &t);
-*/
- if (t == PCI_VENDOR_ID_MOTOROLA + (PCI_DEVICE_ID_MOTOROLA_RAVEN<<16)) {
- vendor = "Motorola";
- device = "Raven";
- NumSources += 1;
- }
- else if (t == PCI_VENDOR_ID_MOTOROLA + (PCI_DEVICE_ID_MOTOROLA_HAWK<<16)) {
- vendor = "Motorola";
- device = "Hawk";
- NumSources += 1;
- } else {
- switch (vendorid) {
- case OPENPIC_VENDOR_ID_APPLE:
- vendor = "Apple";
- break;
- default:
- vendor = "Unknown";
- break;
- }
- switch (devid) {
- case OPENPIC_DEVICE_ID_APPLE_HYDRA:
- device = "Hydra";
- break;
- default:
- device = "Unknown";
- break;
- }
- }
- printk("OpenPIC Version %s (%d CPUs and %d IRQ sources) at 0x%08" PRIuPTR "\n", version,
- NumProcessors, NumSources, (uintptr_t) OpenPIC);
-
- printk("OpenPIC Vendor %d (%s), Device %d (%s), Stepping %d\n", vendorid,
- vendor, devid, device, stepping);
-
- /* Override if they desire */
- if ( num_sources ) {
- if ( NumSources != num_sources )
- printk("Overriding NumSources (%i) from configuration with %i\n",
- NumSources, num_sources);
- NumSources = num_sources;
- }
-
- openpic_src_offst = source_offset;
-
- timerfreq = openpic_read(&OpenPIC->Global.Timer_Frequency);
- printk("OpenPIC timer frequency is ");
- if (timerfreq)
- printk("%d Hz\n", timerfreq);
- else
- printk("not set\n");
-
- if ( main_pic )
- {
- /* Initialize timer interrupts */
- for (i = 0; i < OPENPIC_NUM_TIMERS; i++) {
- /* Disabled, Priority 0 */
- openpic_inittimer(i, 0, OPENPIC_VEC_TIMER+i);
- /* No processor */
- openpic_maptimer(i, 0);
- }
-
- /* Initialize IPI interrupts */
- for (i = 0; i < OPENPIC_NUM_IPI; i++) {
- /* Disabled, Priority 0 */
- openpic_initipi(i, 0, OPENPIC_VEC_IPI+i);
- }
-
- /* Initialize external interrupts */
- for (i = 0; i < NumSources; i++) {
- /* Enabled, Priority 8 */
- openpic_initirq(i, 8, OPENPIC_VEC_SOURCE+i,
- polarities ? polarities[i] : 0,
- senses ? senses[i] : 1);
- /* Processor 0 */
- openpic_mapirq(i, 1<<0);
- }
-
- /* Initialize the spurious interrupt */
- openpic_set_spurious(OPENPIC_VEC_SPURIOUS);
-#if 0
- if (request_irq(IRQ_8259_CASCADE, no_action, SA_INTERRUPT,
- "82c59 cascade", NULL))
- printk("Unable to get OpenPIC IRQ 0 for cascade\n");
-#endif
- openpic_set_priority(0, 0);
- openpic_disable_8259_pass_through();
- }
- if ( epic_freq ) {
- /* Speed up the serial interface; if it is too slow then we might get spurious
- * interrupts:
- * After an ISR clears the interrupt condition at the source/device, the wire
- * remains asserted during the propagation delay introduced by the serial interface
- * (something really stupid). If the ISR returns while the wire is not released
- * yet, then a spurious interrupt happens.
- * The book says we should be careful if the serial clock is > 33MHz.
- * Empirically, it seems that running it at 33MHz is fast enough. Otherwise,
- * we should introduce a delay in openpic_eoi().
- * The maximal delay are 16 (serial) clock cycles. If the divisor is 8
- * [power-up default] then the lag is 2us [66MHz SDRAM clock; I assume this
- * is equal to the bus frequency].
- * FIXME: This should probably be a EPIC-specific piece in 'openpic.c'
- * Unfortunately, there is no easy way of figuring out if the
- * device is an EPIC or not.
- */
- uint32_t eicr_val, ratio;
- /* On the 8240 this is the EICR register */
- eicr_val = in_le32( (volatile uint32_t *)&OpenPIC->Global.Global_Configuration1 ) & ~(7<<28);
- if ( (1<<27) & eicr_val ) {
- /* serial interface mode enabled */
-
- /* round to nearest integer:
- * round(Bus_freq/33000000) = floor( 2*(Bus_freq/33e6) + 1 ) / 2
- */
- ratio = epic_freq / 16500000 + 1;
- ratio >>= 2; /* EICR value is half actual divisor */
- if ( 0==ratio )
- ratio = 1;
- out_le32((volatile uint32_t *)&OpenPIC->Global.Global_Configuration1, eicr_val | ((ratio &7) << 28));
- /* Delay in TB cycles (assuming TB runs at 1/4 of the bus frequency) */
- openpic_set_eoi_delay( 16 * (2*ratio) / 4 );
- }
- }
-}
-
- /*
- * Reset the OpenPIC
- */
-
-void openpic_reset(void)
-{
- openpic_setfield(&OpenPIC->Global.Global_Configuration0,
- OPENPIC_CONFIG_RESET);
-}
-
- /*
- * Enable/disable 8259 Pass Through Mode
- */
-
-void openpic_enable_8259_pass_through(void)
-{
- openpic_clearfield(&OpenPIC->Global.Global_Configuration0,
- OPENPIC_CONFIG_8259_PASSTHROUGH_DISABLE);
-}
-
-void openpic_disable_8259_pass_through(void)
-{
- openpic_setfield(&OpenPIC->Global.Global_Configuration0,
- OPENPIC_CONFIG_8259_PASSTHROUGH_DISABLE);
-}
-
- /*
- * Find out the current interrupt
- */
-
-unsigned int openpic_irq(unsigned int cpu)
-{
- unsigned int vec;
-
- check_arg_cpu(cpu);
- vec = openpic_readfield(&OpenPIC->THIS_CPU.Interrupt_Acknowledge,
- OPENPIC_VECTOR_MASK);
- return vec;
-}
-
- /*
- * Signal end of interrupt (EOI) processing
- */
-
-void openpic_eoi(unsigned int cpu)
-{
- check_arg_cpu(cpu);
- if ( openpic_eoi_delay )
- rtems_bsp_delay_in_bus_cycles(openpic_eoi_delay);
- openpic_write(&OpenPIC->THIS_CPU.EOI, 0);
-}
-
-unsigned openpic_set_eoi_delay(unsigned tb_cycles)
-{
-unsigned rval = openpic_eoi_delay;
- openpic_eoi_delay = tb_cycles;
- return rval;
-}
-
- /*
- * Get/set the current task priority
- */
-
-unsigned int openpic_get_priority(unsigned int cpu)
-{
- CHECK_THIS_CPU;
- return openpic_readfield(&OpenPIC->THIS_CPU.Current_Task_Priority,
- OPENPIC_CURRENT_TASK_PRIORITY_MASK);
-}
-
-void openpic_set_priority(unsigned int cpu, unsigned int pri)
-{
- CHECK_THIS_CPU;
- check_arg_pri(pri);
- openpic_writefield(&OpenPIC->THIS_CPU.Current_Task_Priority,
- OPENPIC_CURRENT_TASK_PRIORITY_MASK, pri);
-}
-
- /*
- * Get/set the spurious vector
- */
-
-unsigned int openpic_get_spurious(void)
-{
- return openpic_readfield(&OpenPIC->Global.Spurious_Vector,
- OPENPIC_VECTOR_MASK);
-}
-
-void openpic_set_spurious(unsigned int vec)
-{
- check_arg_vec(vec);
- openpic_writefield(&OpenPIC->Global.Spurious_Vector, OPENPIC_VECTOR_MASK,
- vec);
-}
-
- /*
- * Initialize one or more CPUs
- */
-
-void openpic_init_processor(unsigned int cpumask)
-{
- openpic_write(&OpenPIC->Global.Processor_Initialization, cpumask);
-}
-
-/* -------- Interprocessor Interrupts -------------------------------------- */
-
- /*
- * Initialize an interprocessor interrupt (and disable it)
- *
- * ipi: OpenPIC interprocessor interrupt number
- * pri: interrupt source priority
- * vec: the vector it will produce
- */
-
-void openpic_initipi(unsigned int ipi, unsigned int pri, unsigned int vec)
-{
- check_arg_timer(ipi);
- check_arg_pri(pri);
- check_arg_vec(vec);
- openpic_safe_writefield(&OpenPIC->Global.IPI_Vector_Priority(ipi),
- OPENPIC_PRIORITY_MASK | OPENPIC_VECTOR_MASK,
- (pri << OPENPIC_PRIORITY_SHIFT) | vec);
-}
-
- /*
- * Send an IPI to one or more CPUs
- */
-
-void openpic_cause_IPI(unsigned int cpu, unsigned int ipi, unsigned int cpumask)
-{
- CHECK_THIS_CPU;
- check_arg_ipi(ipi);
- openpic_write(&OpenPIC->THIS_CPU.IPI_Dispatch(ipi), cpumask);
-}
-
-/* -------- Timer Interrupts ----------------------------------------------- */
-
- /*
- * Initialize a timer interrupt (and disable it)
- *
- * timer: OpenPIC timer number
- * pri: interrupt source priority
- * vec: the vector it will produce
- */
-
-void openpic_inittimer(unsigned int timer, unsigned int pri, unsigned int vec)
-{
- check_arg_timer(timer);
- check_arg_pri(pri);
- check_arg_vec(vec);
- openpic_safe_writefield(&OpenPIC->Global.Timer[timer].Vector_Priority,
- OPENPIC_PRIORITY_MASK | OPENPIC_VECTOR_MASK,
- (pri << OPENPIC_PRIORITY_SHIFT) | vec);
-}
-
- /*
- * Map a timer interrupt to one or more CPUs
- */
-
-void openpic_maptimer(unsigned int timer, unsigned int cpumask)
-{
- check_arg_timer(timer);
- openpic_write(&OpenPIC->Global.Timer[timer].Destination, cpumask);
-}
-
- /*
- * Set base count and / or enable / disable interrupt.
- */
-
-
-void openpic_settimer(unsigned int timer, unsigned int base_count, int irq_enable)
-{
- check_arg_timer(timer);
- if ( base_count )
- openpic_write(&OpenPIC->Global.Timer[timer].Base_Count, base_count);
- if ( irq_enable )
- openpic_clearfield(&OpenPIC->Global.Timer[timer].Vector_Priority, OPENPIC_MASK);
- else
- openpic_setfield(&OpenPIC->Global.Timer[timer].Vector_Priority, OPENPIC_MASK);
-}
-
-unsigned int openpic_gettimer(unsigned int timer)
-{
- check_arg_timer(timer);
- return (openpic_read(&OpenPIC->Global.Timer[timer].Current_Count) & ~OPENPIC_MASK);
-}
-
-/* -------- Interrupt Sources ---------------------------------------------- */
-
- /*
- * Enable/disable an interrupt source
- */
-
-void openpic_enable_irq(unsigned int irq)
-{
-unsigned long flags;
- check_arg_irq(irq);
- rtems_interrupt_disable(flags);
- openpic_clearfield(&OpenPIC->SOURCE(irq).Vector_Priority, OPENPIC_MASK);
- rtems_interrupt_enable(flags);
-}
-
-int openpic_disable_irq(unsigned int irq)
-{
-int rval;
-unsigned long flags;
- check_arg_irq(irq);
- if ( irq < 0 || irq >=NumSources )
- return -1;
- rtems_interrupt_disable(flags);
- rval = openpic_readfield(&OpenPIC->SOURCE(irq).Vector_Priority, OPENPIC_MASK) ? 0 : 1;
- openpic_setfield(&OpenPIC->SOURCE(irq).Vector_Priority, OPENPIC_MASK);
- rtems_interrupt_enable(flags);
- return rval;
-}
-
- /*
- * Initialize an interrupt source (and disable it!)
- *
- * irq: OpenPIC interrupt number
- * pri: interrupt source priority
- * vec: the vector it will produce
- * pol: polarity (1 for positive, 0 for negative)
- * sense: 1 for level, 0 for edge
- */
-
-void openpic_initirq(unsigned int irq, unsigned int pri, unsigned int vec, int pol, int sense)
-{
-#if 0
- printk("openpic_initirq: irq=%d pri=%d vec=%d pol=%d sense=%d\n",
- irq, pri, vec, pol, sense);
-#endif
-
- check_arg_irq(irq);
- check_arg_pri(pri);
- check_arg_vec(vec);
- openpic_safe_writefield(&OpenPIC->SOURCE(irq).Vector_Priority,
- OPENPIC_PRIORITY_MASK | OPENPIC_VECTOR_MASK |
- OPENPIC_SENSE_POLARITY | OPENPIC_SENSE_LEVEL,
- (pri << OPENPIC_PRIORITY_SHIFT) | vec |
- (pol ? OPENPIC_SENSE_POLARITY : 0) |
- (sense ? OPENPIC_SENSE_LEVEL : 0));
-}
-
- /*
- * Map an interrupt source to one or more CPUs
- */
-
-void openpic_mapirq(unsigned int irq, unsigned int cpumask)
-{
- check_arg_irq(irq);
- openpic_write(&OpenPIC->SOURCE(irq).Destination, cpumask);
-}
-
- /*
- * Get the current priority of an external interrupt
- */
-unsigned int openpic_get_source_priority(unsigned int irq)
-{
- check_arg_irq(irq);
- return openpic_readfield(&OpenPIC->SOURCE(irq).Vector_Priority,
- OPENPIC_PRIORITY_MASK) >> OPENPIC_PRIORITY_SHIFT;
-}
-
-void openpic_set_source_priority(unsigned int irq, unsigned int pri)
-{
-unsigned long flags;
- check_arg_irq(irq);
- check_arg_pri(pri);
- rtems_interrupt_disable(flags);
- openpic_writefield(
- &OpenPIC->SOURCE(irq).Vector_Priority,
- OPENPIC_PRIORITY_MASK,
- pri << OPENPIC_PRIORITY_SHIFT);
- rtems_interrupt_enable(flags);
-}
- /*
- * Set the sense for an interrupt source (and disable it!)
- *
- * sense: 1 for level, 0 for edge
- */
-
-void openpic_set_sense(unsigned int irq, int sense)
-{
- check_arg_irq(irq);
- openpic_safe_writefield(&OpenPIC->SOURCE(irq).Vector_Priority,
- OPENPIC_SENSE_LEVEL,
- (sense ? OPENPIC_SENSE_LEVEL : 0));
-}