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https://github.com/livingcomputermuseum/UniBone.git
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974aeed8eb
Interrupt and DMA system now handles multiple levels and multiple devices in parallel Interrupt Register changes synced with INTR transaction DL11 and KW11 clock pass the ZDLDI0 diagnostic. Devices can now be enabled and disabled individually.
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/* storagecontroller.cpp: a unibus device with several "storagedrives" attached
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Copyright (c) 2018, Joerg Hoppe
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j_hoppe@t-online.de, www.retrocmp.com
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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JOERG HOPPE BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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12-nov-2018 JH entered beta phase
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A unibus device with several "storagedrives"
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supports the "attach" command
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*/
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#include "utils.hpp"
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#include "storagecontroller.hpp"
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storagecontroller_c::storagecontroller_c() :
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unibusdevice_c() {
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// sub class (Like "RL11") must create drives into array
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this->drivecount = 0;
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}
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storagecontroller_c::~storagecontroller_c() {
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}
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// implements params, so must handle "change"
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bool storagecontroller_c::on_param_changed(parameter_c *param) {
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if (param == &enabled) {
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if (!enabled.new_value)
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// power/up/down attached drives, then plug to UNIBUS
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// if disable, disable also the drives ("contreolelr plugged from UNIBUS)")
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// on enable, leave them disabled (user may decide which to use)
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for (unsigned i = 0; i < drivecount; i++)
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storagedrives[i]->enabled.set(false);
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}
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return unibusdevice_c::on_param_changed(param); // more actions (for enable)
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}
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// forward BUS events to connected storage drives
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// drives are powered if controller is powered
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void storagecontroller_c::on_power_changed() {
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vector<storagedrive_c*>::iterator it;
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for (it = storagedrives.begin(); it != storagedrives.end(); it++) {
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(*it)->power_down = power_down;
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(*it)->on_power_changed();
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}
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}
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// drives get INIT if controller got it
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void storagecontroller_c::on_init_changed() {
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vector<storagedrive_c*>::iterator it;
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for (it = storagedrives.begin(); it != storagedrives.end(); it++) {
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(*it)->init_asserted = init_asserted;
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(*it)->on_init_changed();
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}
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}
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