b84c6c8526
- Disable port "options" parameter after successful connect. While connected, a device may install runtime options to control it's behaviour. - Added enable handlers for the "options" parameter to ensure an attempt to change the device while connected doesn't enable it. - Some related code cleanups.
289 lines
9.0 KiB
C++
289 lines
9.0 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2009-2015 Benjamin D Lunt (fys [at] fysnet [dot] net)
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// 2009-2021 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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/////////////////////////////////////////////////////////////////////////
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// USB UHCI adapter
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// PIIX3/PIIX4 function 2
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// Notes by Ben Lunt (see uhci_core.cc)
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// Define BX_PLUGGABLE in files that can be compiled into plugins. For
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// platforms that require a special tag on exported symbols, BX_PLUGGABLE
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// is used to know when we are exporting symbols and when we are importing.
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#define BX_PLUGGABLE
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#include "iodev.h"
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#if BX_SUPPORT_PCI && BX_SUPPORT_USB_UHCI
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#include "pci.h"
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#include "usb_common.h"
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#include "uhci_core.h"
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#include "usb_uhci.h"
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#define LOG_THIS theUSB_UHCI->
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bx_usb_uhci_c* theUSB_UHCI = NULL;
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// builtin configuration handling functions
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Bit32s usb_uhci_options_parser(const char *context, int num_params, char *params[])
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{
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if (!strcmp(params[0], "usb_uhci")) {
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bx_list_c *base = (bx_list_c*) SIM->get_param(BXPN_USB_UHCI);
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for (int i = 1; i < num_params; i++) {
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if (!strncmp(params[i], "enabled=", 8)) {
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SIM->get_param_bool(BXPN_UHCI_ENABLED)->set(atol(¶ms[i][8]));
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} else if (!strncmp(params[i], "port", 4) || !strncmp(params[i], "options", 7)) {
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if (SIM->parse_usb_port_params(context, params[i], USB_UHCI_PORTS, base) < 0) {
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return -1;
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}
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} else {
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BX_ERROR(("%s: unknown parameter '%s' for usb_uhci ignored.", context, params[i]));
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}
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}
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} else {
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BX_PANIC(("%s: unknown directive '%s'", context, params[0]));
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}
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return 0;
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}
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Bit32s usb_uhci_options_save(FILE *fp)
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{
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bx_list_c *base = (bx_list_c*) SIM->get_param(BXPN_USB_UHCI);
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SIM->write_usb_options(fp, USB_UHCI_PORTS, base);
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return 0;
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}
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// device plugin entry point
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PLUGIN_ENTRY_FOR_MODULE(usb_uhci)
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{
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if (mode == PLUGIN_INIT) {
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theUSB_UHCI = new bx_usb_uhci_c();
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BX_REGISTER_DEVICE_DEVMODEL(plugin, type, theUSB_UHCI, BX_PLUGIN_USB_UHCI);
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// add new configuration parameter for the config interface
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SIM->init_usb_options("UHCI", "uhci", USB_UHCI_PORTS);
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// register add-on option for bochsrc and command line
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SIM->register_addon_option("usb_uhci", usb_uhci_options_parser, usb_uhci_options_save);
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} else if (mode == PLUGIN_FINI) {
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SIM->unregister_addon_option("usb_uhci");
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bx_list_c *menu = (bx_list_c*)SIM->get_param("ports.usb");
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delete theUSB_UHCI;
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menu->remove("uhci");
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} else {
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return (int)PLUGTYPE_OPTIONAL;
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}
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return 0; // Success
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}
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// the device object
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bx_usb_uhci_c::bx_usb_uhci_c()
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{
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put("usb_uhci", "UHCI");
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rt_conf_id = -1;
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}
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bx_usb_uhci_c::~bx_usb_uhci_c()
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{
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char pname[16];
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SIM->unregister_runtime_config_handler(rt_conf_id);
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for (int i=0; i<USB_UHCI_PORTS; i++) {
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sprintf(pname, "port%d.device", i+1);
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SIM->get_param_enum(pname, SIM->get_param(BXPN_USB_UHCI))->set_handler(NULL);
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sprintf(pname, "port%d.options", i+1);
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SIM->get_param_string(pname, SIM->get_param(BXPN_USB_UHCI))->set_enable_handler(NULL);
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remove_device(i);
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}
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SIM->get_bochs_root()->remove("usb_uhci");
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bx_list_c *usb_rt = (bx_list_c*)SIM->get_param(BXPN_MENU_RUNTIME_USB);
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usb_rt->remove("uhci");
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BX_DEBUG(("Exit"));
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}
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void bx_usb_uhci_c::init(void)
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{
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unsigned i;
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char pname[6];
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bx_list_c *uhci, *port;
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bx_param_enum_c *device;
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bx_param_string_c *options;
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Bit8u devfunc;
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Bit16u devid;
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// Read in values from config interface
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uhci = (bx_list_c*) SIM->get_param(BXPN_USB_UHCI);
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// Check if the device is disabled or not configured
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if (!SIM->get_param_bool("enabled", uhci)->get()) {
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BX_INFO(("USB UHCI disabled"));
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// mark unused plugin for removal
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((bx_param_bool_c*)((bx_list_c*)SIM->get_param(BXPN_PLUGIN_CTRL))->get_by_name("usb_uhci"))->set(0);
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return;
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}
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if (SIM->get_param_enum(BXPN_PCI_CHIPSET)->get() == BX_PCI_CHIPSET_I440FX) {
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devfunc = BX_PCI_DEVICE(1, 2);
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devid = 0x7020;
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} else if (SIM->get_param_enum(BXPN_PCI_CHIPSET)->get() == BX_PCI_CHIPSET_I440BX) {
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devfunc = BX_PCI_DEVICE(7, 2);
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devid = 0x7112;
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} else {
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devfunc = 0x00;
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devid = 0x7020;
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}
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BX_UHCI_THIS init_uhci(devfunc, devid, 0x00, BX_PCI_INTD);
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bx_list_c *usb_rt = (bx_list_c*)SIM->get_param(BXPN_MENU_RUNTIME_USB);
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bx_list_c *uhci_rt = new bx_list_c(usb_rt, "uhci", "UHCI Runtime Options");
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uhci_rt->set_options(uhci_rt->SHOW_PARENT);
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for (i=0; i<USB_UHCI_PORTS; i++) {
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sprintf(pname, "port%d", i+1);
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port = (bx_list_c*)SIM->get_param(pname, uhci);
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uhci_rt->add(port);
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device = (bx_param_enum_c*)port->get_by_name("device");
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device->set_handler(usb_param_handler);
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options = (bx_param_string_c*)port->get_by_name("options");
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options->set_enable_handler(usb_param_enable_handler);
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}
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// register handler for correct device connect handling after runtime config
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BX_UHCI_THIS rt_conf_id = SIM->register_runtime_config_handler(BX_UHCI_THIS_PTR, runtime_config_handler);
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BX_UHCI_THIS device_change = 0;
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BX_INFO(("USB UHCI initialized"));
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}
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void bx_usb_uhci_c::reset(unsigned type)
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{
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unsigned i;
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char pname[6];
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BX_UHCI_THIS reset_uhci(type);
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for (i=0; i<USB_UHCI_PORTS; i++) {
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if (BX_UHCI_THIS hub.usb_port[i].device == NULL) {
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sprintf(pname, "port%d", i+1);
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init_device(i, (bx_list_c*)SIM->get_param(pname, SIM->get_param(BXPN_USB_UHCI)));
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}
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}
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}
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void bx_usb_uhci_c::register_state()
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{
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BX_UHCI_THIS uhci_register_state(SIM->get_bochs_root());
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}
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void bx_usb_uhci_c::after_restore_state()
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{
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bx_uhci_core_c::after_restore_state();
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}
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void bx_usb_uhci_c::init_device(Bit8u port, bx_list_c *portconf)
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{
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char pname[BX_PATHNAME_LEN];
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if (DEV_usb_init_device(portconf, BX_UHCI_THIS_PTR, &BX_UHCI_THIS hub.usb_port[port].device)) {
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if (set_connect_status(port, 1)) {
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portconf->get_by_name("options")->set_enabled(0);
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sprintf(pname, "usb_uhci.hub.port%d.device", port+1);
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bx_list_c *sr_list = (bx_list_c*)SIM->get_param(pname, SIM->get_bochs_root());
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BX_UHCI_THIS hub.usb_port[port].device->register_state(sr_list);
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}
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}
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}
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void bx_usb_uhci_c::remove_device(Bit8u port)
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{
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if (BX_UHCI_THIS hub.usb_port[port].device != NULL) {
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delete BX_UHCI_THIS hub.usb_port[port].device;
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BX_UHCI_THIS hub.usb_port[port].device = NULL;
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}
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}
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void bx_usb_uhci_c::runtime_config_handler(void *this_ptr)
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{
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bx_usb_uhci_c *class_ptr = (bx_usb_uhci_c *) this_ptr;
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class_ptr->runtime_config();
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}
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void bx_usb_uhci_c::runtime_config(void)
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{
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int i;
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char pname[6];
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for (i = 0; i < USB_UHCI_PORTS; i++) {
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// device change support
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if ((BX_UHCI_THIS device_change & (1 << i)) != 0) {
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if (!BX_UHCI_THIS hub.usb_port[i].status) {
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sprintf(pname, "port%d", i + 1);
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init_device(i, (bx_list_c*)SIM->get_param(pname, SIM->get_param(BXPN_USB_UHCI)));
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} else {
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set_connect_status(i, 0);
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remove_device(i);
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}
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BX_UHCI_THIS device_change &= ~(1 << i);
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}
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// forward to connected device
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if (BX_UHCI_THIS hub.usb_port[i].device != NULL) {
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BX_UHCI_THIS hub.usb_port[i].device->runtime_config();
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}
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}
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}
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// USB runtime parameter handler
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Bit64s bx_usb_uhci_c::usb_param_handler(bx_param_c *param, bool set, Bit64s val)
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{
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int portnum;
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if (set) {
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portnum = atoi((param->get_parent())->get_name()+4) - 1;
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bool empty = (val == 0);
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if ((portnum >= 0) && (portnum < USB_UHCI_PORTS)) {
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if (empty && BX_UHCI_THIS hub.usb_port[portnum].status) {
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BX_UHCI_THIS device_change |= (1 << portnum);
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} else if (!empty && !BX_UHCI_THIS hub.usb_port[portnum].status) {
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BX_UHCI_THIS device_change |= (1 << portnum);
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} else if (val != ((bx_param_enum_c*)param)->get()) {
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BX_ERROR(("usb_param_handler(): port #%d already in use", portnum+1));
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val = ((bx_param_enum_c*)param)->get();
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}
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} else {
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BX_PANIC(("usb_param_handler called with unexpected parameter '%s'", param->get_name()));
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}
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}
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return val;
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}
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// USB runtime parameter enable handler
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bool bx_usb_uhci_c::usb_param_enable_handler(bx_param_c *param, bool en)
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{
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int portnum = atoi((param->get_parent())->get_name()+4) - 1;
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if (en && (BX_UHCI_THIS hub.usb_port[portnum].device != NULL)) {
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en = 0;
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}
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return en;
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}
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#endif // BX_SUPPORT_PCI && BX_SUPPORT_USB_UHCI
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