diff options
author | Thomas Huth <thuth@redhat.com> | 2019-03-31 14:40:28 +0200 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-05-17 15:19:39 +0200 |
commit | d09ecd8c14d11d805f65445557cfa691a510dd31 (patch) | |
tree | 873fc858b303a57db8f8940b425b65ee18083538 /hw | |
parent | 958a01dab8e02fc49f4fd619fad8c82a1108afdb (diff) | |
download | qemu-d09ecd8c14d11d805f65445557cfa691a510dd31.zip qemu-d09ecd8c14d11d805f65445557cfa691a510dd31.tar.gz qemu-d09ecd8c14d11d805f65445557cfa691a510dd31.tar.bz2 |
hw/char: Move multi-serial devices into separate file
In our downstream distribution of QEMU, we'd like to ship the binary
without the multi-serial PCI devices. To make this disablement easier,
let's move the devices into a separate file and add a proper Kconfig-
switch for these devices.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1554036028-31410-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw')
-rw-r--r-- | hw/char/Kconfig | 6 | ||||
-rw-r--r-- | hw/char/Makefile.objs | 1 | ||||
-rw-r--r-- | hw/char/serial-pci-multi.c | 208 | ||||
-rw-r--r-- | hw/char/serial-pci.c | 170 |
4 files changed, 215 insertions, 170 deletions
diff --git a/hw/char/Kconfig b/hw/char/Kconfig index 6360c9f..40e7a8b 100644 --- a/hw/char/Kconfig +++ b/hw/char/Kconfig @@ -24,6 +24,12 @@ config SERIAL_PCI depends on PCI select SERIAL +config SERIAL_PCI_MULTI + bool + default y if PCI_DEVICES + depends on PCI + select SERIAL + config VIRTIO_SERIAL bool default y diff --git a/hw/char/Makefile.objs b/hw/char/Makefile.objs index cf086e7..02d8a66 100644 --- a/hw/char/Makefile.objs +++ b/hw/char/Makefile.objs @@ -7,6 +7,7 @@ common-obj-$(CONFIG_PL011) += pl011.o common-obj-$(CONFIG_SERIAL) += serial.o common-obj-$(CONFIG_SERIAL_ISA) += serial-isa.o common-obj-$(CONFIG_SERIAL_PCI) += serial-pci.o +common-obj-$(CONFIG_SERIAL_PCI_MULTI) += serial-pci-multi.o common-obj-$(CONFIG_VIRTIO_SERIAL) += virtio-console.o common-obj-$(CONFIG_XILINX) += xilinx_uartlite.o common-obj-$(CONFIG_XEN) += xen_console.o diff --git a/hw/char/serial-pci-multi.c b/hw/char/serial-pci-multi.c new file mode 100644 index 0000000..63dcbaa --- /dev/null +++ b/hw/char/serial-pci-multi.c @@ -0,0 +1,208 @@ +/* + * QEMU 16550A multi UART emulation + * + * SPDX-License-Identifier: MIT + * + * Copyright (c) 2003-2004 Fabrice Bellard + * Copyright (c) 2008 Citrix Systems, Inc. + * + * 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. + */ + +/* see docs/specs/pci-serial.txt */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "hw/char/serial.h" +#include "hw/pci/pci.h" + +#define PCI_SERIAL_MAX_PORTS 4 + +typedef struct PCIMultiSerialState { + PCIDevice dev; + MemoryRegion iobar; + uint32_t ports; + char *name[PCI_SERIAL_MAX_PORTS]; + SerialState state[PCI_SERIAL_MAX_PORTS]; + uint32_t level[PCI_SERIAL_MAX_PORTS]; + qemu_irq *irqs; + uint8_t prog_if; +} PCIMultiSerialState; + +static void multi_serial_pci_exit(PCIDevice *dev) +{ + PCIMultiSerialState *pci = DO_UPCAST(PCIMultiSerialState, dev, dev); + SerialState *s; + int i; + + for (i = 0; i < pci->ports; i++) { + s = pci->state + i; + serial_exit_core(s); + memory_region_del_subregion(&pci->iobar, &s->io); + g_free(pci->name[i]); + } + qemu_free_irqs(pci->irqs, pci->ports); +} + +static void multi_serial_irq_mux(void *opaque, int n, int level) +{ + PCIMultiSerialState *pci = opaque; + int i, pending = 0; + + pci->level[n] = level; + for (i = 0; i < pci->ports; i++) { + if (pci->level[i]) { + pending = 1; + } + } + pci_set_irq(&pci->dev, pending); +} + +static void multi_serial_pci_realize(PCIDevice *dev, Error **errp) +{ + PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); + PCIMultiSerialState *pci = DO_UPCAST(PCIMultiSerialState, dev, dev); + SerialState *s; + Error *err = NULL; + int i, nr_ports = 0; + + switch (pc->device_id) { + case 0x0003: + nr_ports = 2; + break; + case 0x0004: + nr_ports = 4; + break; + } + assert(nr_ports > 0); + assert(nr_ports <= PCI_SERIAL_MAX_PORTS); + + pci->dev.config[PCI_CLASS_PROG] = pci->prog_if; + pci->dev.config[PCI_INTERRUPT_PIN] = 0x01; + memory_region_init(&pci->iobar, OBJECT(pci), "multiserial", 8 * nr_ports); + pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &pci->iobar); + pci->irqs = qemu_allocate_irqs(multi_serial_irq_mux, pci, + nr_ports); + + for (i = 0; i < nr_ports; i++) { + s = pci->state + i; + s->baudbase = 115200; + serial_realize_core(s, &err); + if (err != NULL) { + error_propagate(errp, err); + multi_serial_pci_exit(dev); + return; + } + s->irq = pci->irqs[i]; + pci->name[i] = g_strdup_printf("uart #%d", i + 1); + memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s, + pci->name[i], 8); + memory_region_add_subregion(&pci->iobar, 8 * i, &s->io); + pci->ports++; + } +} + +static const VMStateDescription vmstate_pci_multi_serial = { + .name = "pci-serial-multi", + .version_id = 1, + .minimum_version_id = 1, + .fields = (VMStateField[]) { + VMSTATE_PCI_DEVICE(dev, PCIMultiSerialState), + VMSTATE_STRUCT_ARRAY(state, PCIMultiSerialState, PCI_SERIAL_MAX_PORTS, + 0, vmstate_serial, SerialState), + VMSTATE_UINT32_ARRAY(level, PCIMultiSerialState, PCI_SERIAL_MAX_PORTS), + VMSTATE_END_OF_LIST() + } +}; + +static Property multi_2x_serial_pci_properties[] = { + DEFINE_PROP_CHR("chardev1", PCIMultiSerialState, state[0].chr), + DEFINE_PROP_CHR("chardev2", PCIMultiSerialState, state[1].chr), + DEFINE_PROP_UINT8("prog_if", PCIMultiSerialState, prog_if, 0x02), + DEFINE_PROP_END_OF_LIST(), +}; + +static Property multi_4x_serial_pci_properties[] = { + DEFINE_PROP_CHR("chardev1", PCIMultiSerialState, state[0].chr), + DEFINE_PROP_CHR("chardev2", PCIMultiSerialState, state[1].chr), + DEFINE_PROP_CHR("chardev3", PCIMultiSerialState, state[2].chr), + DEFINE_PROP_CHR("chardev4", PCIMultiSerialState, state[3].chr), + DEFINE_PROP_UINT8("prog_if", PCIMultiSerialState, prog_if, 0x02), + DEFINE_PROP_END_OF_LIST(), +}; + +static void multi_2x_serial_pci_class_initfn(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass); + pc->realize = multi_serial_pci_realize; + pc->exit = multi_serial_pci_exit; + pc->vendor_id = PCI_VENDOR_ID_REDHAT; + pc->device_id = PCI_DEVICE_ID_REDHAT_SERIAL2; + pc->revision = 1; + pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL; + dc->vmsd = &vmstate_pci_multi_serial; + dc->props = multi_2x_serial_pci_properties; + set_bit(DEVICE_CATEGORY_INPUT, dc->categories); +} + +static void multi_4x_serial_pci_class_initfn(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass); + pc->realize = multi_serial_pci_realize; + pc->exit = multi_serial_pci_exit; + pc->vendor_id = PCI_VENDOR_ID_REDHAT; + pc->device_id = PCI_DEVICE_ID_REDHAT_SERIAL4; + pc->revision = 1; + pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL; + dc->vmsd = &vmstate_pci_multi_serial; + dc->props = multi_4x_serial_pci_properties; + set_bit(DEVICE_CATEGORY_INPUT, dc->categories); +} + +static const TypeInfo multi_2x_serial_pci_info = { + .name = "pci-serial-2x", + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PCIMultiSerialState), + .class_init = multi_2x_serial_pci_class_initfn, + .interfaces = (InterfaceInfo[]) { + { INTERFACE_CONVENTIONAL_PCI_DEVICE }, + { }, + }, +}; + +static const TypeInfo multi_4x_serial_pci_info = { + .name = "pci-serial-4x", + .parent = TYPE_PCI_DEVICE, + .instance_size = sizeof(PCIMultiSerialState), + .class_init = multi_4x_serial_pci_class_initfn, + .interfaces = (InterfaceInfo[]) { + { INTERFACE_CONVENTIONAL_PCI_DEVICE }, + { }, + }, +}; + +static void multi_serial_pci_register_types(void) +{ + type_register_static(&multi_2x_serial_pci_info); + type_register_static(&multi_4x_serial_pci_info); +} + +type_init(multi_serial_pci_register_types) diff --git a/hw/char/serial-pci.c b/hw/char/serial-pci.c index cb0d04c..2d5ffae 100644 --- a/hw/char/serial-pci.c +++ b/hw/char/serial-pci.c @@ -30,26 +30,12 @@ #include "hw/char/serial.h" #include "hw/pci/pci.h" -#define PCI_SERIAL_MAX_PORTS 4 - typedef struct PCISerialState { PCIDevice dev; SerialState state; uint8_t prog_if; } PCISerialState; -typedef struct PCIMultiSerialState { - PCIDevice dev; - MemoryRegion iobar; - uint32_t ports; - char *name[PCI_SERIAL_MAX_PORTS]; - SerialState state[PCI_SERIAL_MAX_PORTS]; - uint32_t level[PCI_SERIAL_MAX_PORTS]; - qemu_irq *irqs; - uint8_t prog_if; -} PCIMultiSerialState; - -static void multi_serial_pci_exit(PCIDevice *dev); static void serial_pci_realize(PCIDevice *dev, Error **errp) { @@ -72,64 +58,6 @@ static void serial_pci_realize(PCIDevice *dev, Error **errp) pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io); } -static void multi_serial_irq_mux(void *opaque, int n, int level) -{ - PCIMultiSerialState *pci = opaque; - int i, pending = 0; - - pci->level[n] = level; - for (i = 0; i < pci->ports; i++) { - if (pci->level[i]) { - pending = 1; - } - } - pci_set_irq(&pci->dev, pending); -} - -static void multi_serial_pci_realize(PCIDevice *dev, Error **errp) -{ - PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev); - PCIMultiSerialState *pci = DO_UPCAST(PCIMultiSerialState, dev, dev); - SerialState *s; - Error *err = NULL; - int i, nr_ports = 0; - - switch (pc->device_id) { - case 0x0003: - nr_ports = 2; - break; - case 0x0004: - nr_ports = 4; - break; - } - assert(nr_ports > 0); - assert(nr_ports <= PCI_SERIAL_MAX_PORTS); - - pci->dev.config[PCI_CLASS_PROG] = pci->prog_if; - pci->dev.config[PCI_INTERRUPT_PIN] = 0x01; - memory_region_init(&pci->iobar, OBJECT(pci), "multiserial", 8 * nr_ports); - pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &pci->iobar); - pci->irqs = qemu_allocate_irqs(multi_serial_irq_mux, pci, - nr_ports); - - for (i = 0; i < nr_ports; i++) { - s = pci->state + i; - s->baudbase = 115200; - serial_realize_core(s, &err); - if (err != NULL) { - error_propagate(errp, err); - multi_serial_pci_exit(dev); - return; - } - s->irq = pci->irqs[i]; - pci->name[i] = g_strdup_printf("uart #%d", i+1); - memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s, - pci->name[i], 8); - memory_region_add_subregion(&pci->iobar, 8 * i, &s->io); - pci->ports++; - } -} - static void serial_pci_exit(PCIDevice *dev) { PCISerialState *pci = DO_UPCAST(PCISerialState, dev, dev); @@ -139,21 +67,6 @@ static void serial_pci_exit(PCIDevice *dev) qemu_free_irq(s->irq); } -static void multi_serial_pci_exit(PCIDevice *dev) -{ - PCIMultiSerialState *pci = DO_UPCAST(PCIMultiSerialState, dev, dev); - SerialState *s; - int i; - - for (i = 0; i < pci->ports; i++) { - s = pci->state + i; - serial_exit_core(s); - memory_region_del_subregion(&pci->iobar, &s->io); - g_free(pci->name[i]); - } - qemu_free_irqs(pci->irqs, pci->ports); -} - static const VMStateDescription vmstate_pci_serial = { .name = "pci-serial", .version_id = 1, @@ -165,41 +78,12 @@ static const VMStateDescription vmstate_pci_serial = { } }; -static const VMStateDescription vmstate_pci_multi_serial = { - .name = "pci-serial-multi", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_PCI_DEVICE(dev, PCIMultiSerialState), - VMSTATE_STRUCT_ARRAY(state, PCIMultiSerialState, PCI_SERIAL_MAX_PORTS, - 0, vmstate_serial, SerialState), - VMSTATE_UINT32_ARRAY(level, PCIMultiSerialState, PCI_SERIAL_MAX_PORTS), - VMSTATE_END_OF_LIST() - } -}; - static Property serial_pci_properties[] = { DEFINE_PROP_CHR("chardev", PCISerialState, state.chr), DEFINE_PROP_UINT8("prog_if", PCISerialState, prog_if, 0x02), DEFINE_PROP_END_OF_LIST(), }; -static Property multi_2x_serial_pci_properties[] = { - DEFINE_PROP_CHR("chardev1", PCIMultiSerialState, state[0].chr), - DEFINE_PROP_CHR("chardev2", PCIMultiSerialState, state[1].chr), - DEFINE_PROP_UINT8("prog_if", PCIMultiSerialState, prog_if, 0x02), - DEFINE_PROP_END_OF_LIST(), -}; - -static Property multi_4x_serial_pci_properties[] = { - DEFINE_PROP_CHR("chardev1", PCIMultiSerialState, state[0].chr), - DEFINE_PROP_CHR("chardev2", PCIMultiSerialState, state[1].chr), - DEFINE_PROP_CHR("chardev3", PCIMultiSerialState, state[2].chr), - DEFINE_PROP_CHR("chardev4", PCIMultiSerialState, state[3].chr), - DEFINE_PROP_UINT8("prog_if", PCIMultiSerialState, prog_if, 0x02), - DEFINE_PROP_END_OF_LIST(), -}; - static void serial_pci_class_initfn(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -215,36 +99,6 @@ static void serial_pci_class_initfn(ObjectClass *klass, void *data) set_bit(DEVICE_CATEGORY_INPUT, dc->categories); } -static void multi_2x_serial_pci_class_initfn(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass); - pc->realize = multi_serial_pci_realize; - pc->exit = multi_serial_pci_exit; - pc->vendor_id = PCI_VENDOR_ID_REDHAT; - pc->device_id = PCI_DEVICE_ID_REDHAT_SERIAL2; - pc->revision = 1; - pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL; - dc->vmsd = &vmstate_pci_multi_serial; - dc->props = multi_2x_serial_pci_properties; - set_bit(DEVICE_CATEGORY_INPUT, dc->categories); -} - -static void multi_4x_serial_pci_class_initfn(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass); - pc->realize = multi_serial_pci_realize; - pc->exit = multi_serial_pci_exit; - pc->vendor_id = PCI_VENDOR_ID_REDHAT; - pc->device_id = PCI_DEVICE_ID_REDHAT_SERIAL4; - pc->revision = 1; - pc->class_id = PCI_CLASS_COMMUNICATION_SERIAL; - dc->vmsd = &vmstate_pci_multi_serial; - dc->props = multi_4x_serial_pci_properties; - set_bit(DEVICE_CATEGORY_INPUT, dc->categories); -} - static const TypeInfo serial_pci_info = { .name = "pci-serial", .parent = TYPE_PCI_DEVICE, @@ -256,33 +110,9 @@ static const TypeInfo serial_pci_info = { }, }; -static const TypeInfo multi_2x_serial_pci_info = { - .name = "pci-serial-2x", - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(PCIMultiSerialState), - .class_init = multi_2x_serial_pci_class_initfn, - .interfaces = (InterfaceInfo[]) { - { INTERFACE_CONVENTIONAL_PCI_DEVICE }, - { }, - }, -}; - -static const TypeInfo multi_4x_serial_pci_info = { - .name = "pci-serial-4x", - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(PCIMultiSerialState), - .class_init = multi_4x_serial_pci_class_initfn, - .interfaces = (InterfaceInfo[]) { - { INTERFACE_CONVENTIONAL_PCI_DEVICE }, - { }, - }, -}; - static void serial_pci_register_types(void) { type_register_static(&serial_pci_info); - type_register_static(&multi_2x_serial_pci_info); - type_register_static(&multi_4x_serial_pci_info); } type_init(serial_pci_register_types) |