/* LUFA Library Copyright (C) Dean Camera, 2010. dean [at] fourwalledcubicle [dot] com www.fourwalledcubicle.com */ /* Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that the copyright notice and this permission notice and warranty disclaimer appear in supporting documentation, and that the name of the author not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. The author disclaim all warranties with regard to this software, including all implied warranties of merchantability and fitness. In no event shall the author be liable for any special, indirect or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortious action, arising out of or in connection with the use or performance of this software. */ /** \file * * Main source file for the MassStorage demo. This file contains the main tasks of * the demo and is responsible for the initial application hardware configuration. */ #include "MassStorage.h" /** LUFA Mass Storage Class driver interface configuration and state information. This structure is * passed to all Mass Storage Class driver functions, so that multiple instances of the same class * within a device can be differentiated from one another. */ USB_ClassInfo_MS_Device_t Disk_MS_Interface = { .Config = { .InterfaceNumber = 0, .DataINEndpointNumber = MASS_STORAGE_IN_EPNUM, .DataINEndpointSize = MASS_STORAGE_IO_EPSIZE, .DataINEndpointDoubleBank = false, .DataOUTEndpointNumber = MASS_STORAGE_OUT_EPNUM, .DataOUTEndpointSize = MASS_STORAGE_IO_EPSIZE, .DataOUTEndpointDoubleBank = false, .TotalLUNs = TOTAL_LUNS, }, }; /** Main program entry point. This routine contains the overall program flow, including initial * setup of all components and the main program loop. */ int main(void) { SetupHardware(); LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); for (;;) { MS_Device_USBTask(&Disk_MS_Interface); USB_USBTask(); } } /** Configures the board hardware and chip peripherals for the demo's functionality. */ void SetupHardware(void) { /* Disable watchdog if enabled by bootloader/fuses */ MCUSR &= ~(1 << WDRF); wdt_disable(); /* Disable clock division */ clock_prescale_set(clock_div_1); /* Hardware Initialization */ LEDs_Init(); SPI_Init(SPI_SPEED_FCPU_DIV_2 | SPI_SCK_LEAD_FALLING | SPI_SAMPLE_TRAILING | SPI_MODE_MASTER); Dataflash_Init(); USB_Init(); /* Clear Dataflash sector protections, if enabled */ DataflashManager_ResetDataflashProtections(); } /** Event handler for the library USB Connection event. */ void EVENT_USB_Device_Connect(void) { LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); } /** Event handler for the library USB Disconnection event. */ void EVENT_USB_Device_Disconnect(void) { LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); } /** Event handler for the library USB Configuration Changed event. */ void EVENT_USB_Device_ConfigurationChanged(void) { LEDs_SetAllLEDs(LEDMASK_USB_READY); if (!(MS_Device_ConfigureEndpoints(&Disk_MS_Interface))) LEDs_SetAllLEDs(LEDMASK_USB_ERROR); } /** Event handler for the library USB Unhandled Control Request event. */ void EVENT_USB_Device_UnhandledControlRequest(void) { MS_Device_ProcessControlRequest(&Disk_MS_Interface); } /** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed. * * \param[in] MSInterfaceInfo Pointer to the Mass Storage class interface configuration structure being referenced */ bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* MSInterfaceInfo) { bool CommandSuccess; LEDs_SetAllLEDs(LEDMASK_USB_BUSY); CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo); LEDs_SetAllLEDs(LEDMASK_USB_READY); return CommandSuccess; } 32' href='#n32'>32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 
/******************************************************************************
 * sysctl.c
 * 
 * System management operations. For use by node control stack.
 * 
 * Copyright (c) 2002-2006, K Fraser
 */

#include <xen/config.h>
#include <xen/types.h>
#include <xen/lib.h>
#include <xen/mm.h>
#include <xen/sched.h>
#include <xen/domain.h>
#include <xen/event.h>
#include <xen/domain_page.h>
#include <xen/trace.h>
#include <xen/console.h>
#include <xen/iocap.h>
#include <xen/guest_access.h>
#include <xen/keyhandler.h>
#include <asm/current.h>
#include <public/sysctl.h>
#include <asm/numa.h>
#include <xen/nodemask.h>
#include <xsm/xsm.h>

extern int do_get_pm_info(struct xen_sysctl_get_pmstat *op);

extern long arch_do_sysctl(
    struct xen_sysctl *op, XEN_GUEST_HANDLE(xen_sysctl_t) u_sysctl);

long do_sysctl(XEN_GUEST_HANDLE(xen_sysctl_t) u_sysctl)
{
    long ret = 0;
    struct xen_sysctl curop, *op = &curop;
    static DEFINE_SPINLOCK(sysctl_lock);

    if ( !IS_PRIV(current->domain) )
        return -EPERM;

    if ( copy_from_guest(op, u_sysctl, 1) )
        return -EFAULT;

    if ( op->interface_version != XEN_SYSCTL_INTERFACE_VERSION )
        return -EACCES;

    spin_lock(&sysctl_lock);

    switch ( op->cmd )
    {
    case XEN_SYSCTL_readconsole:
    {
        ret = xsm_readconsole(op->u.readconsole.clear);
        if ( ret )
            break;

        ret = read_console_ring(&op->u.readconsole);
        if ( copy_to_guest(u_sysctl, op, 1) )
            ret = -EFAULT;
    }
    break;

    case XEN_SYSCTL_tbuf_op:
    {
        ret = xsm_tbufcontrol();
        if ( ret )
            break;

        ret = tb_control(&op->u.tbuf_op);
        if ( copy_to_guest(u_sysctl, op, 1) )
            ret = -EFAULT;
    }
    break;
    
    case XEN_SYSCTL_sched_id:
    {
        ret = xsm_sched_id();
        if ( ret )
            break;

        op->u.sched_id.sched_id = sched_id();
        if ( copy_to_guest(u_sysctl, op, 1) )
            ret = -EFAULT;
        else
            ret = 0;
    }
    break;

    case XEN_SYSCTL_getdomaininfolist:
    { 
        struct domain *d;
        struct xen_domctl_getdomaininfo info;
        u32 num_domains = 0;

        rcu_read_lock(&domlist_read_lock);

        for_each_domain ( d )
        {
            if ( d->domain_id < op->u.getdomaininfolist.first_domain )
                continue;
            if ( num_domains == op->u.getdomaininfolist.max_domains )
                break;

            ret = xsm_getdomaininfo(d);
            if ( ret )
                continue;

            getdomaininfo(d, &info);

            if ( copy_to_guest_offset(op->u.getdomaininfolist.buffer,
                                      num_domains, &info, 1) )
            {
                ret = -EFAULT;
                break;
            }
            
            num_domains++;
        }
        
        rcu_read_unlock(&domlist_read_lock);
        
        if ( ret != 0 )
            break;
        
        op->u.getdomaininfolist.num_domains = num_domains;

        if ( copy_to_guest(u_sysctl, op, 1) )
            ret = -EFAULT;
    }
    break;

#ifdef PERF_COUNTERS
    case XEN_SYSCTL_perfc_op:
    {
        ret = xsm_perfcontrol();
        if ( ret )
            break;

        ret = perfc_control(&op->u.perfc_op);
        if ( copy_to_guest(u_sysctl, op, 1) )
            ret = -EFAULT;
    }
    break;
#endif

    case XEN_SYSCTL_debug_keys:
    {
        char c;
        uint32_t i;

        for ( i = 0; i < op->u.debug_keys.nr_keys; i++ )
        {
            if ( copy_from_guest_offset(&c, op->u.debug_keys.keys, i, 1) )
                return -EFAULT;
            handle_keypress(c, guest_cpu_user_regs());
        }
    }
    break;

    case XEN_SYSCTL_getcpuinfo:
    {
        uint32_t i, nr_cpus;
        struct xen_sysctl_cpuinfo cpuinfo;
        struct vcpu *v;

        nr_cpus = min_t(uint32_t, op->u.getcpuinfo.max_cpus, NR_CPUS);

        for ( i = 0; i < nr_cpus; i++ )
        {
            /* Assume no holes in idle-vcpu map. */
            if ( (v = idle_vcpu[i]) == NULL )
                break;

            cpuinfo.idletime = v->runstate.time[RUNSTATE_running];
            if ( v->is_running )
                cpuinfo.idletime += NOW() - v->runstate.state_entry_time;

            ret = -EFAULT;
            if ( copy_to_guest_offset(op->u.getcpuinfo.info, i, &cpuinfo, 1) )
                goto out;
        }

        op->u.getcpuinfo.nr_cpus = i;
        ret = copy_to_guest(u_sysctl, op, 1) ? -EFAULT : 0;
    }
    break;

    case XEN_SYSCTL_availheap:
    { 
        op->u.availheap.avail_bytes = avail_domheap_pages_region(
            op->u.availheap.node,
            op->u.availheap.min_bitwidth,
            op->u.availheap.max_bitwidth);
        op->u.availheap.avail_bytes <<= PAGE_SHIFT;

        ret = copy_to_guest(u_sysctl, op, 1) ? -EFAULT : 0;
    }
    break;

    case XEN_SYSCTL_get_pmstat:
    {
        ret = do_get_pm_info(&op->u.get_pmstat);
        if ( ret )
            break;

        if ( copy_to_guest(u_sysctl, op, 1) )
        {
            ret = -EFAULT;
            break;
        }
    }
    break;

    default:
        ret = arch_do_sysctl(op, u_sysctl);
        break;
    }

 out:
    spin_unlock(&sysctl_lock);

    return ret;
}

/*
 * Local variables:
 * mode: C
 * c-set-style: "BSD"
 * c-basic-offset: 4
 * tab-width: 4
 * indent-tabs-mode: nil
 * End:
 */