cavium/liquidio/octeon_console.c

101 /* Structure that defines a single console.
104  * The actual usable size of each console is console_buf_size -1;
422 	struct octeon_console *console;
424 	console = &oct->console[console_num];
426 	console->waiting = 0;
432 				struct octeon_console *console,
449 			 * having been read from the console).
453 			if (console->leftover[0] &&
454 			    (line != console->leftover)) {
455 				if (console->print)
456 					(*console->print)(oct, (u32)console_num,
457 							  console->leftover,
459 				console->leftover[0] = '\0';
461 				if (console->print)
462 					(*console->print)(oct, (u32)console_num,
472 		len = strlen(console->leftover);
473 		strscpy(&console->leftover[len], line,
474 			sizeof(console->leftover) - len + 1);
482 	struct octeon_console *console;
488 	console = &oct->console[console_num];
493 		/* Take console output regardless of whether it will
501 			if (console->waiting)
503 			if (console->print) {
504 				output_console_line(oct, console, console_num,
508 			dev_err(&oct->pci_dev->dev, "Error reading console %u, ret=%d\n",
515 	/* If nothing is read after polling the console,
518 	if (console->print && (total_read == 0) &&
519 	    (console->leftover[0])) {
521 		len = strlen(console->leftover);
522 		console->leftover[len] = '\n';
523 		output_console_line(oct, console, console_num,
524 				    console->leftover, (s32)(len + 1));
525 		console->leftover[0] = '\0';
547 		dev_err(&oct->pci_dev->dev, "Could not find console '%s'\n",
553 	 * mapping to a region of Octeon DRAM that contains the PCI console
579 	struct octeon_console *console;
600 	console = &oct->console[console_num];
605 		/* Take console output regardless of whether it will
617 			if (console->waiting)
620 			dev_err(&oct->pci_dev->dev, "Error reading console %u, ret=%d\n",
627 	/* If nothing is read after polling the console,
630 	if ((total_read == 0) && (console->leftover[0])) {
632 			console_num, console->leftover);
633 		console->leftover[0] = '\0';
659 	struct octeon_console *console;
663 			"trying to read from console number %d when only 0 to %d exist\n",
666 		console = &oct->console[console_num];
668 		console->waiting = 0;
673 		console->addr = octeon_read_device_mem64(oct, coreaddr);
674 		coreaddr = console->addr + offsetof(struct octeon_pci_console,
676 		console->buffer_size = octeon_read_device_mem32(oct, coreaddr);
677 		coreaddr = console->addr + offsetof(struct octeon_pci_console,
679 		console->input_base_addr =
681 		coreaddr = console->addr + offsetof(struct octeon_pci_console,
683 		console->output_base_addr =
685 		console->leftover[0] = '\0';
697 		/* an empty string means use default debug console enablement */
703 		console->active = 1;
717 	struct octeon_console *console;
720 		console = &oct->console[i];
722 		if (!console->active)
727 		console->addr = 0;
728 		console->buffer_size = 0;
729 		console->input_base_addr = 0;
730 		console->output_base_addr = 0;
762 	struct octeon_console *console;
765 		dev_err(&oct->pci_dev->dev, "Attempted to read from disabled console %d\n",
770 	console = &oct->console[console_num];
775 	rd_idx = octeon_read_device_mem32(oct, console->addr +
777 	wr_idx = octeon_read_device_mem32(oct, console->addr +
780 	bytes_to_read = octeon_console_avail_bytes(console->buffer_size,
790 	if (rd_idx + bytes_to_read >= console->buffer_size)
791 		bytes_to_read = console->buffer_size - rd_idx;
793 	octeon_pci_read_core_mem(oct, console->output_base_addr + rd_idx,
795 	octeon_write_device_mem32(oct, console->addr +
799 				  console->buffer_size);