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authorPaolo Bonzini <pbonzini@redhat.com>2013-02-05 13:35:34 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2013-04-08 18:13:14 +0200
commit9944d320016914912133b348b6fbbb18c7417035 (patch)
tree833e579b5902d0b3eeb392d74d20433f29fdea70 /hw/spapr_vty.c
parent80b4ecc86dd5ccd779f96c8bd11feb031d327614 (diff)
hw: move char devices to hw/char/, configure via default-configs/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/spapr_vty.c')
-rw-r--r--hw/spapr_vty.c221
1 files changed, 0 insertions, 221 deletions
diff --git a/hw/spapr_vty.c b/hw/spapr_vty.c
deleted file mode 100644
index 9df018a230..0000000000
--- a/hw/spapr_vty.c
+++ /dev/null
@@ -1,221 +0,0 @@
-#include "hw/qdev.h"
-#include "char/char.h"
-#include "hw/ppc/spapr.h"
-#include "hw/ppc/spapr_vio.h"
-
-#define VTERM_BUFSIZE 16
-
-typedef struct VIOsPAPRVTYDevice {
- VIOsPAPRDevice sdev;
- CharDriverState *chardev;
- uint32_t in, out;
- uint8_t buf[VTERM_BUFSIZE];
-} VIOsPAPRVTYDevice;
-
-static int vty_can_receive(void *opaque)
-{
- VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)opaque;
-
- return (dev->in - dev->out) < VTERM_BUFSIZE;
-}
-
-static void vty_receive(void *opaque, const uint8_t *buf, int size)
-{
- VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)opaque;
- int i;
-
- if ((dev->in == dev->out) && size) {
- /* toggle line to simulate edge interrupt */
- qemu_irq_pulse(spapr_vio_qirq(&dev->sdev));
- }
- for (i = 0; i < size; i++) {
- assert((dev->in - dev->out) < VTERM_BUFSIZE);
- dev->buf[dev->in++ % VTERM_BUFSIZE] = buf[i];
- }
-}
-
-static int vty_getchars(VIOsPAPRDevice *sdev, uint8_t *buf, int max)
-{
- VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)sdev;
- int n = 0;
-
- while ((n < max) && (dev->out != dev->in)) {
- buf[n++] = dev->buf[dev->out++ % VTERM_BUFSIZE];
- }
-
- return n;
-}
-
-void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len)
-{
- VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)sdev;
-
- /* FIXME: should check the qemu_chr_fe_write() return value */
- qemu_chr_fe_write(dev->chardev, buf, len);
-}
-
-static int spapr_vty_init(VIOsPAPRDevice *sdev)
-{
- VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)sdev;
-
- if (!dev->chardev) {
- fprintf(stderr, "spapr-vty: Can't create vty without a chardev!\n");
- exit(1);
- }
-
- qemu_chr_add_handlers(dev->chardev, vty_can_receive,
- vty_receive, NULL, dev);
-
- return 0;
-}
-
-/* Forward declaration */
-static target_ulong h_put_term_char(PowerPCCPU *cpu, sPAPREnvironment *spapr,
- target_ulong opcode, target_ulong *args)
-{
- target_ulong reg = args[0];
- target_ulong len = args[1];
- target_ulong char0_7 = args[2];
- target_ulong char8_15 = args[3];
- VIOsPAPRDevice *sdev;
- uint8_t buf[16];
-
- sdev = vty_lookup(spapr, reg);
- if (!sdev) {
- return H_PARAMETER;
- }
-
- if (len > 16) {
- return H_PARAMETER;
- }
-
- *((uint64_t *)buf) = cpu_to_be64(char0_7);
- *((uint64_t *)buf + 1) = cpu_to_be64(char8_15);
-
- vty_putchars(sdev, buf, len);
-
- return H_SUCCESS;
-}
-
-static target_ulong h_get_term_char(PowerPCCPU *cpu, sPAPREnvironment *spapr,
- target_ulong opcode, target_ulong *args)
-{
- target_ulong reg = args[0];
- target_ulong *len = args + 0;
- target_ulong *char0_7 = args + 1;
- target_ulong *char8_15 = args + 2;
- VIOsPAPRDevice *sdev;
- uint8_t buf[16];
-
- sdev = vty_lookup(spapr, reg);
- if (!sdev) {
- return H_PARAMETER;
- }
-
- *len = vty_getchars(sdev, buf, sizeof(buf));
- if (*len < 16) {
- memset(buf + *len, 0, 16 - *len);
- }
-
- *char0_7 = be64_to_cpu(*((uint64_t *)buf));
- *char8_15 = be64_to_cpu(*((uint64_t *)buf + 1));
-
- return H_SUCCESS;
-}
-
-void spapr_vty_create(VIOsPAPRBus *bus, CharDriverState *chardev)
-{
- DeviceState *dev;
-
- dev = qdev_create(&bus->bus, "spapr-vty");
- qdev_prop_set_chr(dev, "chardev", chardev);
- qdev_init_nofail(dev);
-}
-
-static Property spapr_vty_properties[] = {
- DEFINE_SPAPR_PROPERTIES(VIOsPAPRVTYDevice, sdev),
- DEFINE_PROP_CHR("chardev", VIOsPAPRVTYDevice, chardev),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void spapr_vty_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
-
- k->init = spapr_vty_init;
- k->dt_name = "vty";
- k->dt_type = "serial";
- k->dt_compatible = "hvterm1";
- dc->props = spapr_vty_properties;
-}
-
-static const TypeInfo spapr_vty_info = {
- .name = "spapr-vty",
- .parent = TYPE_VIO_SPAPR_DEVICE,
- .instance_size = sizeof(VIOsPAPRVTYDevice),
- .class_init = spapr_vty_class_init,
-};
-
-VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus)
-{
- VIOsPAPRDevice *sdev, *selected;
- BusChild *kid;
-
- /*
- * To avoid the console bouncing around we want one VTY to be
- * the "default". We haven't really got anything to go on, so
- * arbitrarily choose the one with the lowest reg value.
- */
-
- selected = NULL;
- QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
- DeviceState *iter = kid->child;
-
- /* Only look at VTY devices */
- if (!object_dynamic_cast(OBJECT(iter), "spapr-vty")) {
- continue;
- }
-
- sdev = DO_UPCAST(VIOsPAPRDevice, qdev, iter);
-
- /* First VTY we've found, so it is selected for now */
- if (!selected) {
- selected = sdev;
- continue;
- }
-
- /* Choose VTY with lowest reg value */
- if (sdev->reg < selected->reg) {
- selected = sdev;
- }
- }
-
- return selected;
-}
-
-VIOsPAPRDevice *vty_lookup(sPAPREnvironment *spapr, target_ulong reg)
-{
- VIOsPAPRDevice *sdev;
-
- sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
- if (!sdev && reg == 0) {
- /* Hack for kernel early debug, which always specifies reg==0.
- * We search all VIO devices, and grab the vty with the lowest
- * reg. This attempts to mimic existing PowerVM behaviour
- * (early debug does work there, despite having no vty with
- * reg==0. */
- return spapr_vty_get_default(spapr->vio_bus);
- }
-
- return sdev;
-}
-
-static void spapr_vty_register_types(void)
-{
- spapr_register_hypercall(H_PUT_TERM_CHAR, h_put_term_char);
- spapr_register_hypercall(H_GET_TERM_CHAR, h_get_term_char);
- type_register_static(&spapr_vty_info);
-}
-
-type_init(spapr_vty_register_types)