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Implement #157 - add a fake ESP32 to the mix.
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| @@ -0,0 +1,148 @@ | ||
| /* | ||
| * Prusa XL embedded ESP32 machine model. | ||
| * | ||
| * Copyright 2024 VintagePC <github.com/vintagepc> | ||
| * | ||
| * It's just a derived version that adds some convenience wrapping | ||
| * for the control lines and the automatic UART connection from xl-bridge | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| * THE SOFTWARE. | ||
| */ | ||
|
|
||
| #include "qemu/osdep.h" | ||
| #include "qemu/units.h" | ||
| #include "qapi/error.h" | ||
| #include "hw/boards.h" | ||
| #include "hw/sysbus.h" | ||
| #include "sysemu/block-backend.h" | ||
| #include "sysemu/sysemu.h" | ||
| #include "chardev/char.h" | ||
| #include "hw/qdev-properties.h" | ||
| #include "hw/core/split-irq.h" | ||
| #include "qemu/error-report.h" | ||
| #include "parts/xl_bridge.h" | ||
|
|
||
| #define FLASH_FN "Prusa_XL_ESP32_flash.bin" | ||
| #define FLASH_ID "prusa-xl-esp32-flash" | ||
|
|
||
| // Yes, I'm being really lazy about this right now. | ||
| // Long term, this shuold be consolidated with the version in stm32_common. | ||
|
|
||
| static bool create_if_not_exist(const char* default_name, uint32_t file_size) | ||
| { | ||
| bool exists = true; | ||
| if (access(default_name, R_OK | W_OK) == -1) | ||
| { | ||
| #ifndef CONFIG_GCOV | ||
| printf("%s not found - creating it.\n",default_name); | ||
| #endif | ||
| // Create it. | ||
| int fd = creat(default_name, S_IRUSR | S_IWUSR); | ||
| exists = (ftruncate(fd, file_size) != -1); | ||
| close(fd); | ||
| } | ||
| return exists; | ||
| } | ||
|
|
||
| static BlockBackend* get_or_create_drive(BlockInterfaceType interface, int index, const char* default_name, const char* label, uint32_t file_size, Error** errp) | ||
| { | ||
| BlockBackend *blk = blk_by_name(label); | ||
| if (blk) | ||
| { | ||
| return blk; | ||
| } | ||
| DriveInfo* dinfo = drive_get(interface, 0, index); | ||
| if (!dinfo) | ||
| { | ||
| if (create_if_not_exist(default_name, file_size)) | ||
| { | ||
| #ifndef CONFIG_GCOV | ||
| printf("No -%s drive specified, using default %s\n", | ||
| interface==IF_MTD? "mtdblock" : "pflash", | ||
| default_name); | ||
| #endif | ||
| QemuOpts* drive_opts = drive_add(interface, index, default_name, "format=raw"); | ||
| dinfo = drive_new(drive_opts, interface, errp); | ||
| } | ||
| } | ||
| return blk_by_legacy_dinfo(dinfo); | ||
| } | ||
|
|
||
|
|
||
| static void prusa_esp32_init(MachineState *machine) | ||
| { | ||
| // Set strap mode so it's not needed on command line. | ||
| GlobalProperty *g; | ||
| g = g_malloc0(sizeof(*g)); | ||
| g->driver = "esp32.gpio"; | ||
| g->property = "strap_mode"; | ||
| g->value = "0x0f"; | ||
| qdev_prop_register_global(g); | ||
|
|
||
| // Create chardev handler. We can't pipe bytes directly into the UART like the STM32 side, so it's a bit more complex. | ||
| if (!serial_hd(0)) | ||
| { | ||
| QemuOpts *opts; | ||
| opts = qemu_opts_create(qemu_find_opts("chardev"), "prusaxl-esp32", 1, NULL); | ||
| qemu_opt_set(opts, "backend","socket", &error_fatal); | ||
| qemu_opt_set(opts, "path", "/tmp/PXL_ESP32", &error_fatal); | ||
| qemu_chr_new_from_opts(opts, NULL, &error_fatal); | ||
| qemu_opts_del(opts); | ||
| } | ||
|
|
||
| // Create flash storage: | ||
| get_or_create_drive(IF_MTD, 0, FLASH_FN, FLASH_ID, 4U*MiB, &error_fatal); | ||
|
|
||
| DeviceState *dev = qdev_new("xl-bridge"); | ||
| qdev_prop_set_uint8(dev, "device", XL_DEV_ESP32); | ||
|
|
||
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); | ||
|
|
||
| // Invoke parent | ||
| ObjectClass *oc = object_class_by_name(MACHINE_TYPE_NAME("esp32")); | ||
| if (oc != NULL) | ||
| { | ||
| MachineClass *mc = MACHINE_CLASS(oc); | ||
| mc->init(machine); | ||
| } | ||
|
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||
|
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| // qdev_connect_gpio_out_named(stm32_soc_get_periph(dev_soc, STM32_P_UART1),"byte-out", 0, qdev_get_gpio_in_named(dev, "byte-send",0)); | ||
| // qdev_connect_gpio_out_named(dev, "byte-receive", 0, qdev_get_gpio_in_named(stm32_soc_get_periph(dev_soc, STM32_P_UART1),"byte-in", 0)); | ||
| }; | ||
|
|
||
| static void xlbuddy_esp32_class_init(ObjectClass *oc, void *data) | ||
| { | ||
| MachineClass *mc = MACHINE_CLASS(oc); | ||
| mc->desc = "Prusa XL embedded ESP32"; | ||
| mc->family = "xlbuddy-machine", | ||
| mc->no_parallel = true; | ||
| mc->no_serial = true; | ||
| mc->init = prusa_esp32_init; | ||
| } | ||
|
|
||
| static const TypeInfo xlbuddy_esp32_machine_types[] = { | ||
| { | ||
| .name = MACHINE_TYPE_NAME("prusa-xl-esp32"), | ||
| .parent = MACHINE_TYPE_NAME("esp32"), | ||
| .class_init = xlbuddy_esp32_class_init, | ||
| } | ||
| }; | ||
|
|
||
| DEFINE_TYPES(xlbuddy_esp32_machine_types) |
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