53 static void do_rw_io(struct goldfish_tty *qtty,  in do_rw_io()  argument
59 	void __iomem *base = qtty->base;  in do_rw_io()
61 	spin_lock_irqsave(&qtty->lock, irq_flags);  in do_rw_io()
73 	spin_unlock_irqrestore(&qtty->lock, irq_flags);  in do_rw_io()
76 static void goldfish_tty_rw(struct goldfish_tty *qtty,  in goldfish_tty_rw()  argument
85 	if (qtty->version > 0) {  in goldfish_tty_rw()
102 			dma_handle = dma_map_single(qtty->dev, (void *)addr,  in goldfish_tty_rw()
105 			if (dma_mapping_error(qtty->dev, dma_handle)) {  in goldfish_tty_rw()
106 				dev_err(qtty->dev, "tty: DMA mapping error.\n");  in goldfish_tty_rw()
109 			do_rw_io(qtty, dma_handle, avail, is_write);  in goldfish_tty_rw()
115 			dma_unmap_single(qtty->dev, dma_handle, avail, dma_dir);  in goldfish_tty_rw()
124 		do_rw_io(qtty, addr, count, is_write);  in goldfish_tty_rw()
131 	struct goldfish_tty *qtty = &goldfish_ttys[line];  in goldfish_tty_do_write()  local
134 	goldfish_tty_rw(qtty, address, count, 1);  in goldfish_tty_do_write()
139 	struct goldfish_tty *qtty = dev_id;  in goldfish_tty_interrupt()  local
140 	void __iomem *base = qtty->base;  in goldfish_tty_interrupt()
149 	count = tty_prepare_flip_string(&qtty->port, &buf, count);  in goldfish_tty_interrupt()
152 	goldfish_tty_rw(qtty, address, count, 0);  in goldfish_tty_interrupt()
154 	tty_flip_buffer_push(&qtty->port);  in goldfish_tty_interrupt()
160 	struct goldfish_tty *qtty = container_of(port, struct goldfish_tty,  in goldfish_tty_activate()  local
162 	writel(GOLDFISH_TTY_CMD_INT_ENABLE, qtty->base + GOLDFISH_TTY_REG_CMD);  in goldfish_tty_activate()
168 	struct goldfish_tty *qtty = container_of(port, struct goldfish_tty,  in goldfish_tty_shutdown()  local
170 	writel(GOLDFISH_TTY_CMD_INT_DISABLE, qtty->base + GOLDFISH_TTY_REG_CMD);  in goldfish_tty_shutdown()
175 	struct goldfish_tty *qtty = &goldfish_ttys[tty->index];  in goldfish_tty_open()  local
176 	return tty_port_open(&qtty->port, tty, filp);  in goldfish_tty_open()
203 	struct goldfish_tty *qtty = &goldfish_ttys[tty->index];  in goldfish_tty_chars_in_buffer()  local
204 	void __iomem *base = qtty->base;  in goldfish_tty_chars_in_buffer()
296 	struct goldfish_tty *qtty;  in goldfish_tty_probe()  local
345 	qtty = &goldfish_ttys[line];  in goldfish_tty_probe()
346 	spin_lock_init(&qtty->lock);  in goldfish_tty_probe()
347 	tty_port_init(&qtty->port);  in goldfish_tty_probe()
348 	qtty->port.ops = &goldfish_port_ops;  in goldfish_tty_probe()
349 	qtty->base = base;  in goldfish_tty_probe()
350 	qtty->irq = irq;  in goldfish_tty_probe()
351 	qtty->dev = &pdev->dev;  in goldfish_tty_probe()
360 	qtty->version = readl(base + GOLDFISH_TTY_REG_VERSION);  in goldfish_tty_probe()
366 	if (qtty->version > 0) {  in goldfish_tty_probe()
382 			  "goldfish_tty", qtty);  in goldfish_tty_probe()
388 	ttydev = tty_port_register_device(&qtty->port, goldfish_tty_driver,  in goldfish_tty_probe()
395 	strcpy(qtty->console.name, "ttyGF");  in goldfish_tty_probe()
396 	qtty->console.write = goldfish_tty_console_write;  in goldfish_tty_probe()
397 	qtty->console.device = goldfish_tty_console_device;  in goldfish_tty_probe()
398 	qtty->console.setup = goldfish_tty_console_setup;  in goldfish_tty_probe()
399 	qtty->console.flags = CON_PRINTBUFFER;  in goldfish_tty_probe()
400 	qtty->console.index = line;  in goldfish_tty_probe()
401 	register_console(&qtty->console);  in goldfish_tty_probe()
402 	platform_set_drvdata(pdev, qtty);  in goldfish_tty_probe()
408 	free_irq(irq, qtty);  in goldfish_tty_probe()
410 	tty_port_destroy(&qtty->port);  in goldfish_tty_probe()
423 	struct goldfish_tty *qtty = platform_get_drvdata(pdev);  in goldfish_tty_remove()  local
427 	unregister_console(&qtty->console);  in goldfish_tty_remove()
428 	tty_unregister_device(goldfish_tty_driver, qtty->console.index);  in goldfish_tty_remove()
429 	iounmap(qtty->base);  in goldfish_tty_remove()
430 	qtty->base = NULL;  in goldfish_tty_remove()
431 	free_irq(qtty->irq, qtty);  in goldfish_tty_remove()
432 	tty_port_destroy(&qtty->port);  in goldfish_tty_remove()