void __init hvc_vio_init_early(void) { struct device_node *stdout_node; const u32 *termno; const char *name; const struct hv_ops *ops; if (!of_chosen) return; name = of_get_property(of_chosen, "linux,stdout-path", NULL); if (name == NULL) return; stdout_node = of_find_node_by_path(name); if (!stdout_node) return; name = of_get_property(stdout_node, "name", NULL); if (!name) { printk(KERN_WARNING "stdout node missing 'name' property!\n"); goto out; } if (strncmp(name, "vty", 3) != 0) goto out; termno = of_get_property(stdout_node, "reg", NULL); if (termno == NULL) goto out; hvterm_priv0.termno = *termno; spin_lock_init(&hvterm_priv0.buf_lock); hvterm_privs[0] = &hvterm_priv0; if (of_device_is_compatible(stdout_node, "hvterm1")) { hvterm_priv0.proto = HV_PROTOCOL_RAW; ops = &hvterm_raw_ops; } else if (of_device_is_compatible(stdout_node, "hvterm-protocol")) { hvterm_priv0.proto = HV_PROTOCOL_HVSI; ops = &hvterm_hvsi_ops; hvsilib_init(&hvterm_priv0.hvsi, hvc_get_chars, hvc_put_chars, hvterm_priv0.termno, 1); hvsilib_establish(&hvterm_priv0.hvsi); } else goto out; udbg_putc = udbg_hvc_putc; udbg_getc = udbg_hvc_getc; udbg_getc_poll = udbg_hvc_getc_poll; #ifdef HVC_OLD_HVSI if (hvterm_priv0.proto == HV_PROTOCOL_HVSI) goto out; #endif add_preferred_console("hvc", 0, NULL); hvc_instantiate(0, 0, ops); out: of_node_put(stdout_node); }
void __init hvc_vio_init_early(void) { const __be32 *termno; const char *name; const struct hv_ops *ops; /* find the boot console from /chosen/stdout */ if (!of_stdout) return; name = of_get_property(of_stdout, "name", NULL); if (!name) { printk(KERN_WARNING "stdout node missing 'name' property!\n"); return; } /* Check if it's a virtual terminal */ if (strncmp(name, "vty", 3) != 0) return; termno = of_get_property(of_stdout, "reg", NULL); if (termno == NULL) return; hvterm_priv0.termno = of_read_number(termno, 1); spin_lock_init(&hvterm_priv0.buf_lock); hvterm_privs[0] = &hvterm_priv0; /* Check the protocol */ if (of_device_is_compatible(of_stdout, "hvterm1")) { hvterm_priv0.proto = HV_PROTOCOL_RAW; ops = &hvterm_raw_ops; } else if (of_device_is_compatible(of_stdout, "hvterm-protocol")) { hvterm_priv0.proto = HV_PROTOCOL_HVSI; ops = &hvterm_hvsi_ops; hvsilib_init(&hvterm_priv0.hvsi, hvc_get_chars, hvc_put_chars, hvterm_priv0.termno, 1); /* HVSI, perform the handshake now */ hvsilib_establish(&hvterm_priv0.hvsi); } else return; udbg_putc = udbg_hvc_putc; udbg_getc = udbg_hvc_getc; udbg_getc_poll = udbg_hvc_getc_poll; #ifdef HVC_OLD_HVSI /* When using the old HVSI driver don't register the HVC * backend for HVSI, only do udbg */ if (hvterm_priv0.proto == HV_PROTOCOL_HVSI) return; #endif /* Check whether the user has requested a different console. */ if (!strstr(boot_command_line, "console=")) add_preferred_console("hvc", 0, NULL); hvc_instantiate(0, 0, ops); }
int hvsilib_open(struct hvsi_priv *pv, struct hvc_struct *hp) { pr_devel("HVSI@%x: open !\n", pv->termno); /* Keep track of the tty data structure */ pv->tty = tty_kref_get(hp->tty); hvsilib_establish(pv); return 0; }
void __init udbg_init_debug_lpar_hvsi(void) { hvterm_privs[0] = &hvterm_priv0; hvterm_priv0.termno = CONFIG_PPC_EARLY_DEBUG_HVSI_VTERMNO; hvterm_priv0.proto = HV_PROTOCOL_HVSI; spin_lock_init(&hvterm_priv0.buf_lock); udbg_putc = udbg_hvc_putc; udbg_getc = udbg_hvc_getc; udbg_getc_poll = udbg_hvc_getc_poll; hvsilib_init(&hvterm_priv0.hvsi, hvc_get_chars, hvc_put_chars, hvterm_priv0.termno, 1); hvsilib_establish(&hvterm_priv0.hvsi); }
void __init hvc_vio_init_early(void) { struct device_node *stdout_node; const u32 *termno; const char *name; const struct hv_ops *ops; /* find the boot console from /chosen/stdout */ if (!of_chosen) return; name = of_get_property(of_chosen, "linux,stdout-path", NULL); if (name == NULL) return; stdout_node = of_find_node_by_path(name); if (!stdout_node) return; name = of_get_property(stdout_node, "name", NULL); if (!name) { printk(KERN_WARNING "stdout node missing 'name' property!\n"); goto out; } /* Check if it's a virtual terminal */ if (strncmp(name, "vty", 3) != 0) goto out; termno = of_get_property(stdout_node, "reg", NULL); if (termno == NULL) goto out; hvterm_priv0.termno = *termno; spin_lock_init(&hvterm_priv0.buf_lock); hvterm_privs[0] = &hvterm_priv0; /* Check the protocol */ if (of_device_is_compatible(stdout_node, "hvterm1")) { hvterm_priv0.proto = HV_PROTOCOL_RAW; ops = &hvterm_raw_ops; } else if (of_device_is_compatible(stdout_node, "hvterm-protocol")) { hvterm_priv0.proto = HV_PROTOCOL_HVSI; ops = &hvterm_hvsi_ops; hvsilib_init(&hvterm_priv0.hvsi, hvc_get_chars, hvc_put_chars, hvterm_priv0.termno, 1); /* HVSI, perform the handshake now */ hvsilib_establish(&hvterm_priv0.hvsi); } else goto out; udbg_putc = udbg_hvc_putc; udbg_getc = udbg_hvc_getc; udbg_getc_poll = udbg_hvc_getc_poll; #ifdef HVC_OLD_HVSI /* When using the old HVSI driver don't register the HVC * backend for HVSI, only do udbg */ if (hvterm_priv0.proto == HV_PROTOCOL_HVSI) goto out; #endif add_preferred_console("hvc", 0, NULL); hvc_instantiate(0, 0, ops); out: of_node_put(stdout_node); }