2 #include "qemu/error-report.h"
6 #include "chardev/char-fe.h"
9 #include "hw/qdev-properties.h"
10 #include "hw/qdev-properties-system.h"
22 #define TYPE_VIO_SPAPR_VTY_DEVICE "spapr-vty"
29     return VTERM_BUFSIZE - (dev->in - dev->out);  in OBJECT_DECLARE_SIMPLE_TYPE()
37     if ((dev->in == dev->out) && size) {  in vty_receive()
39         spapr_vio_irq_pulse(&dev->sdev);  in vty_receive()
42         if (dev->in - dev->out >= VTERM_BUFSIZE) {  in vty_receive()
45                 error_report("VTY input buffer exhausted - characters dropped."  in vty_receive()
51         dev->buf[dev->in++ % VTERM_BUFSIZE] = buf[i];  in vty_receive()
55 static int vty_getchars(SpaprVioDevice *sdev, uint8_t *buf, int max)  in vty_getchars()  argument
60     while ((n < max) && (dev->out != dev->in)) {  in vty_getchars()
69         if (n > 0 && (buf[n - 1] == '\r') &&  in vty_getchars()
70                 (dev->buf[dev->out % VTERM_BUFSIZE] == '\0')) {  in vty_getchars()
73         buf[n++] = dev->buf[dev->out++ % VTERM_BUFSIZE];  in vty_getchars()
76     qemu_chr_fe_accept_input(&dev->chardev);  in vty_getchars()
81 void vty_putchars(SpaprVioDevice *sdev, uint8_t *buf, int len)  in vty_putchars()  argument
87     qemu_chr_fe_write_all(&dev->chardev, buf, len);  in vty_putchars()
94     if (!qemu_chr_fe_backend_connected(&dev->chardev)) {  in spapr_vty_realize()
99     qemu_chr_fe_set_handlers(&dev->chardev, vty_can_receive,  in spapr_vty_realize()
108     target_ulong len = args[1];  in h_put_term_char()  local
119     if (len > 16) {  in h_put_term_char()
126     vty_putchars(sdev, buf, len);  in h_put_term_char()
135     target_ulong *len = args + 0;  in h_get_term_char()  local
146     *len = vty_getchars(sdev, buf, sizeof(buf));  in h_get_term_char()
147     if (*len < 16) {  in h_get_term_char()
148         memset(buf + *len, 0, 16 - *len);  in h_get_term_char()
161     dev = qdev_new("spapr-vty");  in spapr_vty_create()
163     qdev_realize_and_unref(dev, &bus->bus, &error_fatal);  in spapr_vty_create()
190     k->realize = spapr_vty_realize;  in spapr_vty_class_init()
191     k->dt_name = "vty";  in spapr_vty_class_init()
192     k->dt_type = "serial";  in spapr_vty_class_init()
193     k->dt_compatible = "hvterm1";  in spapr_vty_class_init()
194     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);  in spapr_vty_class_init()
196     dc->vmsd = &vmstate_spapr_vty;  in spapr_vty_class_init()
218     QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {  in spapr_vty_get_default()
219         DeviceState *iter = kid->child;  in spapr_vty_get_default()
235         if (sdev->reg < selected->reg) {  in spapr_vty_get_default()
247     sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);  in vty_lookup()
254         return spapr_vty_get_default(spapr->vio_bus);  in vty_lookup()