3  *    PDC Console support - ie use firmware to dump text via boot console
20  *  The PDC console is a simple console, which can be used for debugging 
22  *  other console works.
34 #include <linux/console.h>
43 static struct console pdc_cons;
45 static void pdc_console_write(struct console *co, const char *s, unsigned count)  in pdc_console_write()
57 int pdc_console_poll_key(struct console *co)  in pdc_console_poll_key()
69 static int pdc_console_setup(struct console *co, char *options)  in pdc_console_setup()
149 	/* Check if the console driver is still registered.  in pdc_console_tty_driver_init()
150 	 * It is unregistered if the pdc console was not selected as the  in pdc_console_tty_driver_init()
151 	 * primary console. */  in pdc_console_tty_driver_init()
153 	struct console *tmp;  in pdc_console_tty_driver_init()
162 		printk(KERN_INFO "PDC console driver not registered anymore, not creating %s\n", pdc_cons.name);  in pdc_console_tty_driver_init()
166 	printk(KERN_INFO "The PDC console driver is still registered, removing CON_BOOT flag\n");  in pdc_console_tty_driver_init()
189 		printk(KERN_ERR "Unable to register the PDC console TTY driver\n");  in pdc_console_tty_driver_init()
198 static struct tty_driver * pdc_console_device (struct console *c, int *index)  in pdc_console_device()
207 static struct console pdc_cons = {
224 	/* If the console is duplex then copy the COUT parameters to CIN. */  in pdc_console_init_force()
228 	/* register the pdc console */  in pdc_console_init_force()
238 	printk(KERN_INFO "Initialized PDC Console for debugging.\n");  in pdc_console_init()
245  * HPMC occurs, it is possible that the current console may not be
247  * all of the current consoles, reinitializes the pdc console and
253 	struct console *console;  in pdc_console_restart()  local
262 	while ((console = console_drivers) != NULL)  in pdc_console_restart()
265 	/* force registering the pdc console */  in pdc_console_restart()