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/* |
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* Copyright (C) 2004-2005 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: dev_ohci.c,v 1.4 2005/04/11 22:58:46 debug Exp $ |
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* |
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* USB OHCI (Open Host Controller Interface). |
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* |
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* TODO |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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|
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#include "cpu.h" |
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#include "device.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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|
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#include "ohcireg.h" |
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|
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|
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/* Length is 0x1000 at least on Playstation 2 */ |
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#define DEV_OHCI_LENGTH 0x1000 |
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|
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|
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#define debug fatal |
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|
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|
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struct ohci_data { |
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int irq_nr; |
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|
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int port1reset; |
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}; |
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|
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|
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/* |
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* dev_ohci_access(): |
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*/ |
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int dev_ohci_access(struct cpu *cpu, struct memory *mem, |
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uint64_t relative_addr, unsigned char *data, size_t len, |
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int writeflag, void *extra) |
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{ |
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struct ohci_data *d = extra; |
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uint64_t idata = 0, odata = 0; |
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char *name = NULL; |
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|
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idata = memory_readmax64(cpu, data, len); |
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|
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switch (relative_addr) { |
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case OHCI_REVISION: |
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name = "REVISION"; |
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if (writeflag == MEM_READ) { |
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odata = 0x10; /* Version 1.0. */ |
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} |
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break; |
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case OHCI_COMMAND_STATUS: |
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name = "COMMAND_STATUS"; |
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if (idata == 0x2) { |
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fatal("URK\n"); |
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cpu_interrupt(cpu, d->irq_nr); |
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} |
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break; |
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case OHCI_INTERRUPT_STATUS: |
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name = "INTERRUPT_STATUS"; |
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odata = OHCI_WDH; |
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break; |
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/* |
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* TODO: It now sleeps at tsleep(xfer, PRIBIO, "usbsyn", 0); |
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* in netbsd/src/sys/dev/usb/usbdi.c |
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*/ |
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case OHCI_RH_DESCRIPTOR_A: |
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name = "RH_DESCRIPTOR_A"; |
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odata = 2; /* Nr of ports */ |
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break; |
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case OHCI_RH_STATUS: |
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name = "RH_STATUS"; |
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/* TODO */ |
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break; |
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case OHCI_RH_PORT_STATUS(1): /* First port */ |
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name = "RH_PORT_STATUS(1)"; |
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if (writeflag == MEM_READ) { |
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/* Status = low 16, Change = top 16 */ |
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odata = 0x10101; |
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/* 0x0001 = connected |
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0x0100 = power */ |
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if (d->port1reset) |
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odata |= (0x10 << 16) | 0x10; |
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} else { |
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/* 0x10 = UPS_C_PORT_RESET */ |
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if (idata & 0x10) |
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d->port1reset = 1; |
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if (idata & 0x100000) |
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d->port1reset = 0; |
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} |
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break; |
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case OHCI_RH_PORT_STATUS(2): /* Second port */ |
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name = "RH_PORT_STATUS(2)"; |
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/* TODO */ |
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odata = 0; |
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break; |
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default: |
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if (writeflag == MEM_READ) { |
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debug("[ ohci: read from addr 0x%x: 0x%llx ]\n", |
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(int)relative_addr, (long long)odata); |
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} else { |
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debug("[ ohci: write to addr 0x%x: 0x%llx ]\n", |
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(int)relative_addr, (long long)idata); |
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} |
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} |
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|
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if (name != NULL) { |
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if (writeflag == MEM_READ) |
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debug("[ ohci: read from %s: 0x%llx ]\n", |
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name, (long long)odata); |
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else |
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debug("[ ohci: write to %s: 0x%llx ]\n", |
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name, (long long)idata); |
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} |
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|
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if (writeflag == MEM_READ) |
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memory_writemax64(cpu, data, len, odata); |
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|
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return 1; |
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} |
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|
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|
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/* |
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* devinit_ohci(): |
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*/ |
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int devinit_ohci(struct devinit *devinit) |
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{ |
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struct ohci_data *d; |
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|
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d = malloc(sizeof(struct ohci_data)); |
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if (d == NULL) { |
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fprintf(stderr, "out of memory\n"); |
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exit(1); |
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} |
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memset(d, 0, sizeof(struct ohci_data)); |
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d->irq_nr = devinit->irq_nr; |
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|
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memory_device_register(devinit->machine->memory, |
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devinit->name, devinit->addr, |
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DEV_OHCI_LENGTH, dev_ohci_access, d, MEM_DEFAULT, NULL); |
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|
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return 1; |
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} |
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