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path: root/quantum/process_keycode/process_terminal.c

	Commit message (Collapse)	Author	Age	Files	Lines
*	Updates send_string functionality, adds terminal feature (#1657)	Jack Humbert	2017-09-12	1	-0/+252
	* implement basic terminal stuff * modify send_string to read normal strings too * add files bc yeah. working pgm detected * pgm detection apparently not working * adds send string keycodes, additional keycode support in send string * implement arguments * [terminal] add help command * [terminal] adds keycode and keymap functions * [terminal] adds nop.h, documentation * update macro docs

generated by cgit v1.2.3 (git 2.25.1) at 2025-10-24 03:20:53 +0000

/*
 *	Low-Level PCI Support for PC
 *
 *	(c) 1999--2000 Martin Mares <mj@ucw.cz>
 *
 * Adjusted to use Xen's interface by Rolf Neugebauer, Intel Research Cambridge
 * Further modifications by Keir Fraser, University of Cambridge
 */

#include <linux/config.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/ioport.h>

#include <asm/segment.h>
#include <asm/io.h>

#include <asm/hypervisor-ifs/hypervisor-if.h>
#include <asm/hypervisor-ifs/physdev.h>

#include "pci-i386.h"

/*
 * NB. The following interface functions are not included here:
 *  1. void eisa_set_level_irq(unsigned int irq)
 *  2. irq_routing_table * __devinit pcibios_get_irq_routing_table(void)
 *  3. int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq)
 * All are used by the ACPI driver. This should be ported to Xen if it is
 * ever required -- Xen is the ultimate source for IRQ-routing knowledge.
 */

struct pci_ops *pci_root_ops = NULL;

int (*pci_config_read)(int seg, int bus, int dev, int fn, 
                       int reg, int len, u32 *value) = NULL;
int (*pci_config_write)(int seg, int bus, int dev, int fn,
                        int reg, int len, u32 value) = NULL;

unsigned int pci_probe = PCI_PROBE_BIOS;

struct pci_fixup pcibios_fixups[] = { { 0 } };

static int pci_confx_read(int seg, int bus, int dev, int fn, int reg, 
                          int len, u32 *value)
{
    int ret;
    physdev_op_t op;

    if (bus > 255 || dev > 31 || fn > 7 || reg > 255)
        return -EINVAL;

    op.cmd = PHYSDEVOP_PCI_CFGREG_READ;
    op.u.pci_cfgreg_read.bus  = bus;
    op.u.pci_cfgreg_read.dev  = dev;
    op.u.pci_cfgreg_read.func = fn;
    op.u.pci_cfgreg_read.reg  = reg;
    op.u.pci_cfgreg_read.len  = len;

    if ( (ret = HYPERVISOR_physdev_op(&op)) != 0 )
        return ret;

    *value = op.u.pci_cfgreg_read.value;

    return 0;
}

static int pci_confx_write(int seg, int bus, int dev, int fn, int reg, 
                           int len, u32 value)
{
    int ret;
    physdev_op_t op;

    if ((bus > 255 || dev > 31 || fn > 7 || reg > 255)) 
        return -EINVAL;

    op.cmd = PHYSDEVOP_PCI_CFGREG_WRITE;
    op.u.pci_cfgreg_write.bus   = bus;
    op.u.pci_cfgreg_write.dev   = dev;
    op.u.pci_cfgreg_write.func  = fn;
    op.u.pci_cfgreg_write.reg   = reg;
    op.u.pci_cfgreg_write.len   = len;
    op.u.pci_cfgreg_write.value = value;

    if ( (ret = HYPERVISOR_physdev_op(&op)) != 0 )
        return ret;
    return 0;
}


static int pci_confx_read_config_byte(struct pci_dev *dev, 
                                      int where, u8 *value)
{
    int result; 
    u32 data;

    result = pci_confx_read(0, dev->bus->number, PCI_SLOT(dev->devfn), 
                            PCI_FUNC(dev->devfn), where, 1, &data);

    *value = (u8)data;

    return result;
}

static int pci_confx_read_config_word(struct pci_dev *dev, 
                                      int where, u16 *value)
{
    int result; 
    u32 data;

    result = pci_confx_read(0, dev->bus->number, PCI_SLOT(dev->devfn), 
                            PCI_FUNC(dev->devfn), where, 2, &data);

    *value = (u16)data;

    return result;
}

static int pci_confx_read_config_dword(struct pci_dev *dev, 
                                       int where, u32 *value)
{
    return pci_confx_read(0, dev->bus->number, PCI_SLOT(dev->devfn), 
                          PCI_FUNC(dev->devfn), where, 4, value);
}

static int pci_confx_write_config_byte(struct pci_dev *dev, 
                                       int where, u8 value)
{
    return pci_confx_write(0, dev->bus->number, PCI_SLOT(dev->devfn), 
                           PCI_FUNC(dev->devfn), where, 1, value);
}

static int pci_confx_write_config_word(struct pci_dev *dev, 
                                       int where, u16 value)
{
    return pci_confx_write(0, dev->bus->number, PCI_SLOT(dev->devfn),